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version 1.178.2.1, 2004/02/18 10:43:02
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version 1.228, 2004/08/10 22:55:31
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Line 20
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| # |
# |
| # You should have received a copy of the GNU General Public License |
# You should have received a copy of the GNU General Public License |
| # along with LON-CAPA; if not, write to the Free Software |
# along with LON-CAPA; if not, write to the Free Software |
| # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| # |
# |
| # /home/httpd/html/adm/gpl.txt |
# /home/httpd/html/adm/gpl.txt |
| # |
# |
|
Line 45 use Authen::Krb4;
|
Line 45 use Authen::Krb4;
|
| use Authen::Krb5; |
use Authen::Krb5; |
| use lib '/home/httpd/lib/perl/'; |
use lib '/home/httpd/lib/perl/'; |
| use localauth; |
use localauth; |
| |
use localenroll; |
| use File::Copy; |
use File::Copy; |
| use LONCAPA::ConfigFileEdit; |
use LONCAPA::ConfigFileEdit; |
| |
use LONCAPA::lonlocal; |
| |
use LONCAPA::lonssl; |
| |
use Fcntl qw(:flock); |
| |
|
| my $DEBUG = 0; # Non zero to enable debug log entries. |
my $DEBUG = 0; # Non zero to enable debug log entries. |
| |
|
|
Line 55 my $lastlog='';
|
Line 59 my $lastlog='';
|
| |
|
| my $VERSION='$Revision$'; #' stupid emacs |
my $VERSION='$Revision$'; #' stupid emacs |
| my $remoteVERSION; |
my $remoteVERSION; |
| my $currenthostid; |
my $currenthostid="default"; |
| my $currentdomainid; |
my $currentdomainid; |
| |
|
| my $client; |
my $client; |
| my $clientip; |
my $clientip; # IP address of client. |
| my $clientname; |
my $clientdns; # DNS name of client. |
| |
my $clientname; # LonCAPA name of client. |
| my $cipher; # Cipher key negotiated with client. |
|
| my $tmpsnum = 0;; # Id of tmpputs. |
|
| |
|
| my $server; |
my $server; |
| my $thisserver; |
my $thisserver; # DNS of us. |
| |
|
| |
my $keymode; |
| |
|
| |
my $cipher; # Cipher key negotiated with client |
| |
my $tmpsnum = 0; # Id of tmpputs. |
| |
|
| # |
# |
| # Connection type is: |
# Connection type is: |
|
Line 77 my $thisserver;
|
Line 84 my $thisserver;
|
| |
|
| my $ConnectionType; |
my $ConnectionType; |
| |
|
| my %hostid; |
my %hostid; # ID's for hosts in cluster by ip. |
| my %hostdom; |
my %hostdom; # LonCAPA domain for hosts in cluster. |
| my %hostip; |
my %hostip; # IPs for hosts in cluster. |
| |
my %hostdns; # ID's of hosts looked up by DNS name. |
| |
|
| my %managers; # Ip -> manager names |
my %managers; # Ip -> manager names |
| |
|
|
Line 98 my $CLIENT_OK = 1;
|
Line 106 my $CLIENT_OK = 1;
|
| my $MANAGER_OK = 2; |
my $MANAGER_OK = 2; |
| my %Dispatcher; |
my %Dispatcher; |
| |
|
| |
|
| # |
# |
| # The array below are password error strings." |
# The array below are password error strings." |
| # |
# |
|
Line 113 my @passwderrors = ("ok",
|
Line 122 my @passwderrors = ("ok",
|
| "lcpasswd Cannot set new passwd.", |
"lcpasswd Cannot set new passwd.", |
| "lcpasswd Username has invalid characters", |
"lcpasswd Username has invalid characters", |
| "lcpasswd Invalid characters in password", |
"lcpasswd Invalid characters in password", |
| "11", "12", |
"lcpasswd User already exists", |
| "lcpasswd Password mismatch"); |
"lcpasswd Something went wrong with user addition.", |
| |
"lcpasswd Password mismatch", |
| |
"lcpasswd Error filename is invalid"); |
| |
|
| |
|
| # The array below are lcuseradd error strings.: |
# The array below are lcuseradd error strings.: |
|
Line 135 my @adderrors = ("ok",
|
Line 146 my @adderrors = ("ok",
|
| "lcuseradd Could not add user.", |
"lcuseradd Could not add user.", |
| "lcuseradd Password mismatch"); |
"lcuseradd Password mismatch"); |
| |
|
| |
|
| |
|
| # |
# |
| # Statistics that are maintained and dislayed in the status line. |
# Statistics that are maintained and dislayed in the status line. |
| # |
# |
| my $Transactions; # Number of attempted transactions. |
my $Transactions = 0; # Number of attempted transactions. |
| my $Failures; # Number of transcations failed. |
my $Failures = 0; # Number of transcations failed. |
| |
|
| # ResetStatistics: |
# ResetStatistics: |
| # Resets the statistics counters: |
# Resets the statistics counters: |
|
Line 149 sub ResetStatistics {
|
Line 162 sub ResetStatistics {
|
| $Failures = 0; |
$Failures = 0; |
| } |
} |
| |
|
| |
#------------------------------------------------------------------------ |
| # |
# |
| # Return true if client is a manager. |
# LocalConnection |
| # |
# Completes the formation of a locally authenticated connection. |
| sub isManager { |
# This function will ensure that the 'remote' client is really the |
| return (($ConnectionType eq "manager") || ($ConnectionType eq "both")); |
# local host. If not, the connection is closed, and the function fails. |
| } |
# If so, initcmd is parsed for the name of a file containing the |
| # |
# IDEA session key. The fie is opened, read, deleted and the session |
| # Return tru if client can do client functions |
# key returned to the caller. |
| # |
|
| sub isClient { |
|
| return (($ConnectionType eq "client") || ($ConnectionType eq "both")); |
|
| } |
|
| |
|
| |
|
| # |
|
| # Get a Request: |
|
| # Gets a Request message from the client. The transaction |
|
| # is defined as a 'line' of text. We remove the new line |
|
| # from the text line. |
|
| # |
|
| sub GetRequest { |
|
| my $input = <$client>; |
|
| chomp($input); |
|
| |
|
| Debug("Request = $input\n"); |
|
| |
|
| &status('Processing '.$clientname.':'.$input); |
|
| |
|
| return $input; |
|
| } |
|
| # |
|
| # Decipher encoded traffic |
|
| # Parameters: |
|
| # input - Encoded data. |
|
| # Returns: |
|
| # Decoded data or undef if encryption key was not yet negotiated. |
|
| # Implicit input: |
|
| # cipher - This global holds the negotiated encryption key. |
|
| # |
# |
| sub Decipher { |
|
| my $input = shift; |
|
| my $output = ''; |
|
| |
|
| |
|
| if($cipher) { |
|
| my($enc, $enclength, $encinput) = split(/:/, $input); |
|
| for(my $encidx = 0; $encidx < length($encinput); $encidx += 16) { |
|
| $output .= |
|
| $cipher->decrypt(pack("H16", substr($encinput, $encidx, 16))); |
|
| } |
|
| return substr($output, 0, $enclength); |
|
| } else { |
|
| return undef; |
|
| } |
|
| |
|
| } |
|
| |
|
| # |
|
| # Register a command processor. This function is invoked to register a sub |
|
| # to process a request. Once registered, the ProcessRequest sub can automatically |
|
| # dispatch requests to an appropriate sub, and do the top level validity checking |
|
| # as well: |
|
| # - Is the keyword recognized. |
|
| # - Is the proper client type attempting the request. |
|
| # - Is the request encrypted if it has to be. |
|
| # Parameters: |
|
| # $RequestName - Name of the request being registered. |
|
| # This is the command request that will match |
|
| # against the hash keywords to lookup the information |
|
| # associated with the dispatch information. |
|
| # $Procedure - Reference to a sub to call to process the request. |
|
| # All subs get called as follows: |
|
| # Procedure($cmd, $tail, $replyfd, $key) |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $replyfd- File descriptor connected to the client |
|
| # $MustEncode - True if the request must be encoded to be good. |
|
| # $ClientOk - True if it's ok for a client to request this. |
|
| # $ManagerOk - True if it's ok for a manager to request this. |
|
| # Side effects: |
|
| # - On success, the Dispatcher hash has an entry added for the key $RequestName |
|
| # - On failure, the program will die as it's a bad internal bug to try to |
|
| # register a duplicate command handler. |
|
| # |
|
| sub RegisterHandler { |
|
| my $RequestName = shift; |
|
| my $Procedure = shift; |
|
| my $MustEncode = shift; |
|
| my $ClientOk = shift; |
|
| my $ManagerOk = shift; |
|
| |
|
| # Don't allow duplication# |
|
| |
|
| if (defined $Dispatcher{$RequestName}) { |
|
| die "Attempting to define a duplicate request handler for $RequestName\n"; |
|
| } |
|
| # Build the client type mask: |
|
| |
|
| my $ClientTypeMask = 0; |
|
| if($ClientOk) { |
|
| $ClientTypeMask |= $CLIENT_OK; |
|
| } |
|
| if($ManagerOk) { |
|
| $ClientTypeMask |= $MANAGER_OK; |
|
| } |
|
| |
|
| # Enter the hash: |
|
| |
|
| my @entry = ($Procedure, $MustEncode, $ClientTypeMask); |
|
| |
|
| $Dispatcher{$RequestName} = \@entry; |
|
| |
|
| |
|
| } |
|
| |
|
| #--------------------- Request Handlers -------------------------------------------- |
|
| # |
|
| # By convention each request handler registers itself prior to the sub declaration: |
|
| # |
|
| |
|
| # Handles ping requests. |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $replyfd- File descriptor connected to the client |
|
| # Implicit Inputs: |
|
| # $currenthostid - Global variable that carries the name of the host we are |
|
| # known as. |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit. |
|
| # Side effects: |
|
| # Reply information is sent to the client. |
|
| |
|
| sub PingHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| Reply( $client,"$currenthostid\n","$cmd:$tail"); |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("ping", \&PingHandler, 0, 1, 1); # Ping unencoded, client or manager. |
|
| # |
|
| # Handles pong reequests: |
|
| # Parameters: |
# Parameters: |
| # $cmd - the actual keyword that invoked us. |
# $Socket - Socket open on client. |
| # $tail - the tail of the request that invoked us. |
# $initcmd - The full text of the init command. |
| # $replyfd- File descriptor connected to the client |
|
| # Implicit Inputs: |
|
| # $currenthostid - Global variable that carries the name of the host we are |
|
| # connected to. |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit. |
|
| # Side effects: |
|
| # Reply information is sent to the client. |
|
| |
|
| sub PongHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $replyfd = shift; |
|
| |
|
| my $reply=&reply("ping",$clientname); |
|
| Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); |
|
| return 1; |
|
| } |
|
| RegisterHandler("pong", \&PongHandler, 0, 1, 1); # Pong unencoded, client or manager |
|
| |
|
| # |
# |
| # EstablishKeyHandler: |
|
| # Called to establish an encrypted session key with the remote client. |
|
| # |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $replyfd- File descriptor connected to the client |
|
| # Implicit Inputs: |
|
| # $currenthostid - Global variable that carries the name of the host |
|
| # known as. |
|
| # $clientname - Global variable that carries the name of the hsot we're connected to. |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit. |
|
| # Implicit Outputs: |
|
| # Reply information is sent to the client. |
|
| # $cipher is set with a reference to a new IDEA encryption object. |
|
| # |
|
| sub EstablishKeyHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $replyfd = shift; |
|
| |
|
| my $buildkey=time.$$.int(rand 100000); |
|
| $buildkey=~tr/1-6/A-F/; |
|
| $buildkey=int(rand 100000).$buildkey.int(rand 100000); |
|
| my $key=$currenthostid.$clientname; |
|
| $key=~tr/a-z/A-Z/; |
|
| $key=~tr/G-P/0-9/; |
|
| $key=~tr/Q-Z/0-9/; |
|
| $key=$key.$buildkey.$key.$buildkey.$key.$buildkey; |
|
| $key=substr($key,0,32); |
|
| my $cipherkey=pack("H32",$key); |
|
| $cipher=new IDEA $cipherkey; |
|
| Reply($replyfd, "$buildkey\n", "$cmd:$tail"); |
|
| |
|
| return 1; |
|
| |
|
| } |
|
| RegisterHandler("ekey", \&EstablishKeyHandler, 0, 1,1); |
|
| |
|
| # LoadHandler: |
|
| # Handler for the load command. Returns the current system load average |
|
| # to the requestor. |
|
| # |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $replyfd- File descriptor connected to the client |
|
| # Implicit Inputs: |
|
| # $currenthostid - Global variable that carries the name of the host |
|
| # known as. |
|
| # $clientname - Global variable that carries the name of the hsot we're connected to. |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit. |
|
| # Side effects: |
|
| # Reply information is sent to the client. |
|
| sub LoadHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $replyfd = shift; |
|
| |
|
| # Get the load average from /proc/loadavg and calculate it as a percentage of |
|
| # the allowed load limit as set by the perl global variable lonLoadLim |
|
| |
|
| my $loadavg; |
|
| my $loadfile=IO::File->new('/proc/loadavg'); |
|
| |
|
| $loadavg=<$loadfile>; |
|
| $loadavg =~ s/\s.*//g; # Extract the first field only. |
|
| |
|
| my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; |
|
| |
|
| Reply( $replyfd, "$loadpercent\n", "$cmd:$tail"); |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("load", \&LoadHandler, 0, 1, 0); |
|
| |
|
| |
|
| # |
|
| # Process the userload request. This sub returns to the client the current |
|
| # user load average. It can be invoked either by clients or managers. |
|
| # |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $replyfd- File descriptor connected to the client |
|
| # Implicit Inputs: |
|
| # $currenthostid - Global variable that carries the name of the host |
|
| # known as. |
|
| # $clientname - Global variable that carries the name of the hsot we're connected to. |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit |
|
| # Implicit inputs: |
# Implicit inputs: |
| # whatever the userload() function requires. |
# $clientdns - The DNS name of the remote client. |
| # Implicit outputs: |
# $thisserver - Our DNS name. |
| # the reply is written to the client. |
|
| # |
|
| sub UserLoadHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $replyfd = shift; |
|
| |
|
| my $userloadpercent=&userload(); |
|
| Reply($replyfd, "$userloadpercent\n", "$cmd:$tail"); |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("userload", \&UserLoadHandler, 0, 1, 0); |
|
| |
|
| # Process a request for the authorization type of a user: |
|
| # (userauth). |
|
| # |
# |
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $replyfd- File descriptor connected to the client |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit |
|
| # Implicit outputs: |
|
| # The user authorization type is written to the client. |
|
| # |
|
| sub UserAuthorizationType { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $replyfd = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| # Pull the domain and username out of the command tail. |
|
| # and call GetAuthType to determine the authentication type. |
|
| |
|
| my ($udom,$uname)=split(/:/,$tail); |
|
| my $result = GetAuthType($udom, $uname); |
|
| if($result eq "nouser") { |
|
| Failure( $replyfd, "unknown_user\n", $userinput); |
|
| } else { |
|
| Reply( $replyfd, "$result\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("currentauth", \&UserAuthorizationType, 1, 1, 0); |
|
| # |
|
| # Process a request by a manager to push a hosts or domain table |
|
| # to us. We pick apart the command and pass it on to the subs |
|
| # that already exist to do this. |
|
| # |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $client - File descriptor connected to the client |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit |
|
| # Implicit Output: |
|
| # a reply is written to the client. |
|
| |
|
| sub PushFileHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| # At this time we only know that the IP of our partner is a valid manager |
|
| # the code below is a hook to do further authentication (e.g. to resolve |
|
| # spoofing). |
|
| |
|
| my $cert = GetCertificate($userinput); |
|
| if(ValidManager($cert)) { |
|
| |
|
| # Now presumably we have the bona fides of both the peer host and the |
|
| # process making the request. |
|
| |
|
| my $reply = PushFile($userinput); |
|
| Reply($client, "$reply\n", $userinput); |
|
| |
|
| } else { |
|
| Failure( $client, "refused\n", $userinput); |
|
| } |
|
| } |
|
| RegisterHandler("pushfile", \&PushFileHandler, 1, 0, 1); |
|
| |
|
| |
|
| |
|
| # Process a reinit request. Reinit requests that either |
|
| # lonc or lond be reinitialized so that an updated |
|
| # host.tab or domain.tab can be processed. |
|
| # |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $client - File descriptor connected to the client |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit |
|
| # Implicit output: |
|
| # a reply is sent to the client. |
|
| # |
|
| sub ReinitProcessHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my $cert = GetCertificate($userinput); |
|
| if(ValidManager($cert)) { |
|
| chomp($userinput); |
|
| my $reply = ReinitProcess($userinput); |
|
| Reply( $client, "$reply\n", $userinput); |
|
| } else { |
|
| Failure( $client, "refused\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| |
|
| RegisterHandler("reinit", \&ReinitProcessHandler, 1, 0, 1); |
|
| |
|
| # Process the editing script for a table edit operation. |
|
| # the editing operation must be encrypted and requested by |
|
| # a manager host. |
|
| # |
|
| # Parameters: |
|
| # $cmd - the actual keyword that invoked us. |
|
| # $tail - the tail of the request that invoked us. |
|
| # $client - File descriptor connected to the client |
|
| # Returns: |
|
| # 1 - Ok to continue processing. |
|
| # 0 - Program should exit |
|
| # Implicit output: |
|
| # a reply is sent to the client. |
|
| # |
|
| sub EditTableHandler { |
|
| my $command = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$command:$tail"; |
|
| |
|
| my $cert = GetCertificate($userinput); |
|
| if(ValidManager($cert)) { |
|
| my($filetype, $script) = split(/:/, $tail); |
|
| if (($filetype eq "hosts") || |
|
| ($filetype eq "domain")) { |
|
| if($script ne "") { |
|
| Reply($client, # BUGBUG - EditFile |
|
| EditFile($userinput), # could fail. |
|
| $userinput); |
|
| } else { |
|
| Failure($client,"refused\n",$userinput); |
|
| } |
|
| } else { |
|
| Failure($client,"refused\n",$userinput); |
|
| } |
|
| } else { |
|
| Failure($client,"refused\n",$userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("edit", \&EditTableHandler, 1, 0, 1); |
|
| |
|
| |
|
| # |
|
| # Authenticate a user against the LonCAPA authentication |
|
| # database. Note that there are several authentication |
|
| # possibilities: |
|
| # - unix - The user can be authenticated against the unix |
|
| # password file. |
|
| # - internal - The user can be authenticated against a purely |
|
| # internal per user password file. |
|
| # - kerberos - The user can be authenticated against either a kerb4 or kerb5 |
|
| # ticket granting authority. |
|
| # - user - The person tailoring LonCAPA can supply a user authentication mechanism |
|
| # that is per system. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # Implicit inputs: |
|
| # The authentication systems describe above have their own forms of implicit |
|
| # input into the authentication process that are described above. |
|
| # |
|
| sub AuthenticateHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| # Regenerate the full input line |
|
| |
|
| my $userinput = $cmd.":".$tail; |
|
| |
|
| # udom - User's domain. |
|
| # uname - Username. |
|
| # upass - User's password. |
|
| |
|
| my ($udom,$uname,$upass)=split(/:/,$tail); |
|
| chomp($upass); |
|
| $upass=unescape($upass); |
|
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| |
|
| # The user's 'personal' loncapa passworrd file describes how to authenticate: |
|
| |
|
| if (-e $passfilename) { |
|
| my $pf = IO::File->new($passfilename); |
|
| my $realpasswd=<$pf>; |
|
| chomp($realpasswd); |
|
| my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
|
| my $pwdcorrect=0; |
|
| # |
|
| # Authenticate against password stored in the internal file. |
|
| # |
|
| if ($howpwd eq 'internal') { |
|
| &Debug("Internal auth"); |
|
| $pwdcorrect= (crypt($upass,$contentpwd) eq $contentpwd); |
|
| # |
|
| # Authenticate against the unix password file. |
|
| # |
|
| } elsif ($howpwd eq 'unix') { |
|
| &Debug("Unix auth"); |
|
| if((getpwnam($uname))[1] eq "") { #no such user! |
|
| $pwdcorrect = 0; |
|
| } else { |
|
| $contentpwd=(getpwnam($uname))[1]; |
|
| my $pwauth_path="/usr/local/sbin/pwauth"; |
|
| unless ($contentpwd eq 'x') { |
|
| $pwdcorrect= (crypt($upass,$contentpwd) eq $contentpwd); |
|
| } elsif (-e $pwauth_path) { |
|
| open PWAUTH, "|$pwauth_path" or |
|
| die "Cannot invoke authentication"; |
|
| print PWAUTH "$uname\n$upass\n"; |
|
| close PWAUTH; |
|
| $pwdcorrect=!$?; |
|
| } |
|
| } |
|
| # |
|
| # Authenticate against a Kerberos 4 server: |
|
| # |
|
| } elsif ($howpwd eq 'krb4') { |
|
| my $null=pack("C",0); |
|
| unless ($upass=~/$null/) { |
|
| my $krb4_error = &Authen::Krb4::get_pw_in_tkt($uname, |
|
| "", |
|
| $contentpwd, |
|
| 'krbtgt', |
|
| $contentpwd, |
|
| 1, |
|
| $upass); |
|
| if (!$krb4_error) { |
|
| $pwdcorrect = 1; |
|
| } else { |
|
| $pwdcorrect=0; |
|
| # log error if it is not a bad password |
|
| if ($krb4_error != 62) { |
|
| &logthis('krb4:'.$uname.','.$contentpwd.','. |
|
| &Authen::Krb4::get_err_txt($Authen::Krb4::error)); |
|
| } |
|
| } |
|
| } |
|
| # |
|
| # Authenticate against a Kerberos 5 server: |
|
| # |
|
| } elsif ($howpwd eq 'krb5') { |
|
| my $null=pack("C",0); |
|
| unless ($upass=~/$null/) { |
|
| my $krbclient=&Authen::Krb5::parse_name($uname.'@'.$contentpwd); |
|
| my $krbservice="krbtgt/".$contentpwd."\@".$contentpwd; |
|
| my $krbserver=&Authen::Krb5::parse_name($krbservice); |
|
| my $credentials=&Authen::Krb5::cc_default(); |
|
| $credentials->initialize($krbclient); |
|
| my $krbreturn = &Authen::Krb5::get_in_tkt_with_password( |
|
| $krbclient, |
|
| $krbserver, |
|
| $upass, |
|
| $credentials); |
|
| $pwdcorrect = ($krbreturn == 1); |
|
| } else { |
|
| $pwdcorrect=0; |
|
| } |
|
| # |
|
| # Finally, the user may have written in an authentication module. |
|
| # in that case, if requested, authenticate against it. |
|
| # |
|
| } elsif ($howpwd eq 'localauth') { |
|
| $pwdcorrect=&localauth::localauth($uname,$upass,$contentpwd); |
|
| } |
|
| # |
|
| # Successfully authorized. |
|
| # |
|
| if ($pwdcorrect) { |
|
| Reply( $client, "authorized\n", $userinput); |
|
| # |
|
| # Bad credentials: Failed to authorize |
|
| # |
|
| } else { |
|
| Failure( $client, "non_authorized\n", $userinput); |
|
| } |
|
| # |
|
| # User bad... note it may be bad security practice to differntiate to the |
|
| # caller a bad user from a bad passwd... since that supplies covert channel |
|
| # information (you have a good user but bad password e.g.) to guessers. |
|
| # |
|
| } else { |
|
| Failure( $client, "unknown_user\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("auth", \&AuthenticateHandler, 1, 1, 0); |
|
| |
|
| # |
|
| # Change a user's password. Note that this function is complicated by |
|
| # the fact that a user may be authenticated in more than one way: |
|
| # At present, we are not able to change the password for all types of |
|
| # authentication methods. Only for: |
|
| # unix - unix password or shadow passoword style authentication. |
|
| # local - Locally written authentication mechanism. |
|
| # For now, kerb4 and kerb5 password changes are not supported and result |
|
| # in an error. |
|
| # FUTURE WORK: |
|
| # Support kerberos passwd changes? |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # Implicit inputs: |
|
| # The authentication systems describe above have their own forms of implicit |
|
| # input into the authentication process that are described above. |
|
| sub ChangePasswordHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = $cmd.":".$tail; # Reconstruct client's string. |
|
| |
|
| # |
|
| # udom - user's domain. |
|
| # uname - Username. |
|
| # upass - Current password. |
|
| # npass - New password. |
|
| |
|
| my ($udom,$uname,$upass,$npass)=split(/:/,$tail); |
|
| chomp($npass); |
|
| $upass=&unescape($upass); |
|
| $npass=&unescape($npass); |
|
| &Debug("Trying to change password for $uname"); |
|
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| if (-e $passfilename) { |
|
| my $realpasswd; |
|
| { |
|
| my $pf = IO::File->new($passfilename); |
|
| $realpasswd=<$pf>; |
|
| } |
|
| chomp($realpasswd); |
|
| my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
|
| if ($howpwd eq 'internal') { |
|
| &Debug("internal auth"); |
|
| if (crypt($upass,$contentpwd) eq $contentpwd) { |
|
| my $salt=time; |
|
| $salt=substr($salt,6,2); |
|
| my $ncpass=crypt($npass,$salt); |
|
| { |
|
| my $pf = IO::File->new(">$passfilename"); |
|
| if ($pf) { |
|
| print $pf "internal:$ncpass\n"; |
|
| &logthis("Result of password change for " |
|
| ."$uname: pwchange_success"); |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| &logthis("Unable to open $uname passwd " |
|
| ."to change password"); |
|
| Failure( $client, "non_authorized\n",$userinput); |
|
| } |
|
| } |
|
| } else { |
|
| Failure($client, "non_authorized\n", $userinput); |
|
| } |
|
| } elsif ($howpwd eq 'unix') { |
|
| # Unix means we have to access /etc/password |
|
| # one way or another. |
|
| # First: Make sure the current password is |
|
| # correct |
|
| &Debug("auth is unix"); |
|
| $contentpwd=(getpwnam($uname))[1]; |
|
| my $pwdcorrect = "0"; |
|
| my $pwauth_path="/usr/local/sbin/pwauth"; |
|
| unless ($contentpwd eq 'x') { |
|
| $pwdcorrect= (crypt($upass,$contentpwd) eq $contentpwd); |
|
| } elsif (-e $pwauth_path) { |
|
| open PWAUTH, "|$pwauth_path" or |
|
| die "Cannot invoke authentication"; |
|
| print PWAUTH "$uname\n$upass\n"; |
|
| close PWAUTH; |
|
| &Debug("exited pwauth with $? ($uname,$upass) "); |
|
| $pwdcorrect=($? == 0); |
|
| } |
|
| if ($pwdcorrect) { |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| &Debug("Opening lcpasswd pipeline"); |
|
| my $pf = IO::File->new("|$execdir/lcpasswd > " |
|
| ."$perlvar{'lonDaemons'}" |
|
| ."/logs/lcpasswd.log"); |
|
| print $pf "$uname\n$npass\n$npass\n"; |
|
| close $pf; |
|
| my $err = $?; |
|
| my $result = ($err>0 ? 'pwchange_failure' : 'ok'); |
|
| &logthis("Result of password change for $uname: ". |
|
| &lcpasswdstrerror($?)); |
|
| Reply($client, "$result\n", $userinput); |
|
| } else { |
|
| Reply($client, "non_authorized\n", $userinput); |
|
| } |
|
| } else { |
|
| Reply( $client, "auth_mode_error\n", $userinput); |
|
| } |
|
| } else { |
|
| Reply( $client, "unknown_user\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("passwd", \&ChangePasswordHandler, 1, 1, 0); |
|
| |
|
| # |
|
| # Create a new user. User in this case means a lon-capa user. |
|
| # The user must either already exist in some authentication realm |
|
| # like kerberos or the /etc/passwd. If not, a user completely local to |
|
| # this loncapa system is created. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # Implicit inputs: |
|
| # The authentication systems describe above have their own forms of implicit |
|
| # input into the authentication process that are described above. |
|
| sub AddUserHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = $cmd.":".$tail; |
|
| |
|
| my $oldumask=umask(0077); |
|
| my ($udom,$uname,$umode,$npass)=split(/:/,$tail); |
|
| &Debug("cmd =".$cmd." $udom =".$udom." uname=".$uname); |
|
| chomp($npass); |
|
| $npass=&unescape($npass); |
|
| my $proname=propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| &Debug("Password file created will be:".$passfilename); |
|
| if (-e $passfilename) { |
|
| Failure( $client, "already_exists\n", $userinput); |
|
| } elsif ($udom ne $currentdomainid) { |
|
| Failure($client, "not_right_domain\n", $userinput); |
|
| } else { |
|
| my @fpparts=split(/\//,$proname); |
|
| my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2]; |
|
| my $fperror=''; |
|
| for (my $i=3;$i<=$#fpparts;$i++) { |
|
| $fpnow.='/'.$fpparts[$i]; |
|
| unless (-e $fpnow) { |
|
| unless (mkdir($fpnow,0777)) { |
|
| $fperror="error: ".($!+0)." mkdir failed while attempting " |
|
| ."makeuser"; |
|
| } |
|
| } |
|
| } |
|
| unless ($fperror) { |
|
| my $result=&make_passwd_file($uname, $umode,$npass, $passfilename); |
|
| Reply($client, $result, $userinput); #BUGBUG - could be fail |
|
| } else { |
|
| Failure($client, "$fperror\n", $userinput); |
|
| } |
|
| } |
|
| umask($oldumask); |
|
| return 1; |
|
| |
|
| } |
|
| RegisterHandler("makeuser", \&AddUserHandler, 1, 1, 0); |
|
| |
|
| # |
|
| # Change the authentication method of a user. Note that this may |
|
| # also implicitly change the user's password if, for example, the user is |
|
| # joining an existing authentication realm. Known authentication realms at |
|
| # this time are: |
|
| # internal - Purely internal password file (only loncapa knows this user) |
|
| # local - Institutionally written authentication module. |
|
| # unix - Unix user (/etc/passwd with or without /etc/shadow). |
|
| # kerb4 - kerberos version 4 |
|
| # kerb5 - kerberos version 5 |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # Implicit inputs: |
|
| # The authentication systems describe above have their own forms of implicit |
|
| # input into the authentication process that are described above. |
|
| # |
|
| sub ChangeAuthenticationHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; # Reconstruct user input. |
|
| |
|
| my ($udom,$uname,$umode,$npass)=split(/:/,$tail); |
|
| chomp($npass); |
|
| &Debug("cmd = ".$cmd." domain= ".$udom."uname =".$uname." umode= ".$umode); |
|
| $npass=&unescape($npass); |
|
| my $proname=&propath($udom,$uname); |
|
| my $passfilename="$proname/passwd"; |
|
| if ($udom ne $currentdomainid) { |
|
| Failure( $client, "not_right_domain\n", $client); |
|
| } else { |
|
| my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); |
|
| Reply($client, $result, $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("changeuserauth", \&ChangeAuthenticationHandler, 1,1, 0); |
|
| |
|
| # |
|
| # Determines if this is the home server for a user. The home server |
|
| # for a user will have his/her lon-capa passwd file. Therefore all we need |
|
| # to do is determine if this file exists. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # Implicit inputs: |
|
| # The authentication systems describe above have their own forms of implicit |
|
| # input into the authentication process that are described above. |
|
| # |
|
| sub IsHomeHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname)=split(/:/,$tail); |
|
| chomp($uname); |
|
| my $proname=propath($udom,$uname); |
|
| if (-e $proname) { |
|
| Reply( $client, "found\n", $userinput); |
|
| } else { |
|
| Failure($client, "not_found\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("home", \&IsHomeHandler, 0,1,0); |
|
| # |
|
| # Process an update request for a resource?? I think what's going on here is |
|
| # that a resource has been modified that we hold a subscription to. |
|
| # If the resource is not local, then we must update, or at least invalidate our |
|
| # cached copy of the resource. |
|
| # FUTURE WORK: |
|
| # I need to look at this logic carefully. My druthers would be to follow |
|
| # typical caching logic, and simple invalidate the cache, drop any subscription |
|
| # an let the next fetch start the ball rolling again... however that may |
|
| # actually be more difficult than it looks given the complex web of |
|
| # proxy servers. |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # Implicit inputs: |
|
| # The authentication systems describe above have their own forms of implicit |
|
| # input into the authentication process that are described above. |
|
| # |
|
| sub UpdateResourceHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my $fname=$tail; |
|
| my $ownership=ishome($fname); |
|
| if ($ownership eq 'not_owner') { |
|
| if (-e $fname) { |
|
| my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, |
|
| $atime,$mtime,$ctime,$blksize,$blocks)=stat($fname); |
|
| my $now=time; |
|
| my $since=$now-$atime; |
|
| if ($since>$perlvar{'lonExpire'}) { |
|
| my $reply=&reply("unsub:$fname","$clientname"); |
|
| unlink("$fname"); |
|
| } else { |
|
| my $transname="$fname.in.transfer"; |
|
| my $remoteurl=&reply("sub:$fname","$clientname"); |
|
| my $response; |
|
| alarm(120); |
|
| { |
|
| my $ua=new LWP::UserAgent; |
|
| my $request=new HTTP::Request('GET',"$remoteurl"); |
|
| $response=$ua->request($request,$transname); |
|
| } |
|
| alarm(0); |
|
| if ($response->is_error()) { |
|
| unlink($transname); |
|
| my $message=$response->status_line; |
|
| &logthis("LWP GET: $message for $fname ($remoteurl)"); |
|
| } else { |
|
| if ($remoteurl!~/\.meta$/) { |
|
| alarm(120); |
|
| { |
|
| my $ua=new LWP::UserAgent; |
|
| my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); |
|
| my $mresponse=$ua->request($mrequest,$fname.'.meta'); |
|
| if ($mresponse->is_error()) { |
|
| unlink($fname.'.meta'); |
|
| } |
|
| } |
|
| alarm(0); |
|
| } |
|
| rename($transname,$fname); |
|
| } |
|
| } |
|
| Reply( $client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "not_found\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "rejected\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("update", \&UpdateResourceHandler, 0 ,1, 0); |
|
| |
|
| # |
|
| # Fetch a user file from a remote server: |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub FetchUserFileHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| my $fname = $tail; |
|
| my ($udom,$uname,$ufile)=split(/\//,$fname); |
|
| my $udir=propath($udom,$uname).'/userfiles'; |
|
| unless (-e $udir) { |
|
| mkdir($udir,0770); |
|
| } |
|
| if (-e $udir) { |
|
| $ufile=~s/^[\.\~]+//; |
|
| $ufile=~s/\///g; |
|
| my $destname=$udir.'/'.$ufile; |
|
| my $transname=$udir.'/'.$ufile.'.in.transit'; |
|
| my $remoteurl='http://'.$clientip.'/userfiles/'.$fname; |
|
| my $response; |
|
| alarm(120); |
|
| { |
|
| my $ua=new LWP::UserAgent; |
|
| my $request=new HTTP::Request('GET',"$remoteurl"); |
|
| $response=$ua->request($request,$transname); |
|
| } |
|
| alarm(0); |
|
| if ($response->is_error()) { |
|
| unlink($transname); |
|
| my $message=$response->status_line; |
|
| &logthis("LWP GET: $message for $fname ($remoteurl)"); |
|
| Failure($client, "failed\n", $userinput); |
|
| } else { |
|
| if (!rename($transname,$destname)) { |
|
| &logthis("Unable to move $transname to $destname"); |
|
| unlink($transname); |
|
| Failure($client, "failed\n", $userinput); |
|
| } else { |
|
| Reply($client, "ok\n", $userinput); |
|
| } |
|
| } |
|
| } else { |
|
| Failure($client, "not_home\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("fetchuserfile", \&FetchUserFileHandler, 0, 1, 0); |
|
| # |
|
| # Authenticate access to a user file. Question? The token for athentication |
|
| # is allowed to be sent as cleartext is this really what we want? This token |
|
| # represents the user's session id. Once it is forged does this allow too much access?? |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| sub AuthenticateUserFileAccess { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($fname,$session)=split(/:/,$tail); |
|
| chomp($session); |
|
| my $reply='non_auth'; |
|
| if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.$session.'.id')) { |
|
| while (my $line=<ENVIN>) { |
|
| if ($line=~/userfile\.$fname\=/) { |
|
| $reply='ok'; |
|
| } |
|
| } |
|
| close(ENVIN); |
|
| Reply($client, $reply."\n", $userinput); |
|
| } else { |
|
| Failure($client, "invalid_token\n", $userinput); |
|
| } |
|
| return 1; |
|
| |
|
| } |
|
| RegisterHandler("tokenauthuserfile", \&AuthenticateUserFileAccess, 0, 1, 0); |
|
| # |
|
| # Unsubscribe from a resource. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub UnsubscribeHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput= "$cmd:$tail"; |
|
| |
|
| my $fname = $tail; |
|
| if (-e $fname) { |
|
| Reply($client, &unsub($client,$fname,$clientip), $userinput); |
|
| } else { |
|
| Failure($client, "not_found\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("unusb", \&UnsubscribeHandler, 0, 1, 0); |
|
| |
|
| # Subscribe to a resource. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub SubscribeHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| Reply( $client, &subscribe($userinput,$clientip), $userinput); |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("sub", \&SubscribeHandler, 0, 1, 0); |
|
| |
|
| # |
|
| # Determine the version of a resource (?) Or is it return |
|
| # the top version of the resource? Not yet clear from the |
|
| # code in currentversion. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub CurrentVersionHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput= "$cmd:$tail"; |
|
| |
|
| my $fname = $tail; |
|
| Reply( $client, ¤tversion($fname)."\n", $userinput); |
|
| return 1; |
|
| |
|
| } |
|
| RegisterHandler("currentversion", \&CurrentVersionHandler, 0, 1, 0); |
|
| |
|
| |
|
| # Make an entry in a user's activity log. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub ActivityLogEntryHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput= "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$what)=split(/:/,$tail); |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/activity.log")) { |
|
| print $hfh "$now:$clientname:$what\n"; |
|
| Reply( $client, "ok\n", $userinput); |
|
| } else { |
|
| Reply($client, "error: ".($!+0)." IO::File->new Failed " |
|
| ."while attempting log\n", |
|
| $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("log", \&ActivityLogEntryHandler, 0, 1, 0); |
|
| # |
|
| # Put a namespace entry in a user profile hash. |
|
| # My druthers would be for this to be an encrypted interaction too. |
|
| # anything that might be an inadvertent covert channel about either |
|
| # user authentication or user personal information.... |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub PutUserProfileEntry { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace,$what) =split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| if ($namespace ne 'roles') { |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
|
| print $hfh "P:$now:$what\n"; |
|
| } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", |
|
| &GDBM_WRCREAT(),0640)) { |
|
| foreach my $pair (@pairs) { |
|
| my ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply( $client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) failed ". |
|
| "while attempting put\n", |
|
| $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!)." tie(GDBM) Failed ". |
|
| "while attempting put\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "refused\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("put", \&PutUserProfileEntry, 0, 1, 0); |
|
| |
|
| # |
|
| # Increment a profile entry in the user history file. |
|
| # The history contains keyword value pairs. In this case, |
|
| # The value itself is a pair of numbers. The first, the current value |
|
| # the second an increment that this function applies to the current |
|
| # value. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that got us here. |
|
| # $tail - Tail of the command (remaining parameters). |
|
| # $client - File descriptor connected to client. |
|
| # Returns |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Continue processing. |
|
| # |
|
| sub IncrementUserValueHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = shift; |
|
| |
|
| my ($udom,$uname,$namespace,$what) =split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| if ($namespace ne 'roles') { |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
|
| print $hfh "P:$now:$what\n"; |
|
| } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(), |
|
| 0640)) { |
|
| foreach my $pair (@pairs) { |
|
| my ($key,$value)=split(/=/,$pair); |
|
| # We could check that we have a number... |
|
| if (! defined($value) || $value eq '') { |
|
| $value = 1; |
|
| } |
|
| $hash{$key}+=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply( $client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) failed ". |
|
| "while attempting put\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting put\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("inc", \&IncrementUserValueHandler, 0, 1, 0); |
|
| # |
|
| # Put a new role for a user. Roles are LonCAPA's packaging of permissions. |
|
| # Each 'role' a user has implies a set of permissions. Adding a new role |
|
| # for a person grants the permissions packaged with that role |
|
| # to that user when the role is selected. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command string (rolesput). |
|
| # $tail - The remainder of the request line. For rolesput this |
|
| # consists of a colon separated list that contains: |
|
| # The domain and user that is granting the role (logged). |
|
| # The domain and user that is getting the role. |
|
| # The roles being granted as a set of & separated pairs. |
|
| # each pair a key value pair. |
|
| # $client - File descriptor connected to the client. |
|
| # Returns: |
# Returns: |
| # 0 - If the daemon should exit |
# IDEA session key on success. |
| # 1 - To continue processing. |
# undef on failure. |
| # |
# |
| # |
sub LocalConnection { |
| sub RolesPutHandler { |
my ($Socket, $initcmd) = @_; |
| my $cmd = shift; |
Debug("Attempting local connection: $initcmd client: $clientdns me: $thisserver"); |
| my $tail = shift; |
if($clientdns ne $thisserver) { |
| my $client = shift; |
&logthis('<font color="red"> LocalConnection rejecting non local: ' |
| my $userinput = "$cmd:$tail"; |
."$clientdns ne $thisserver </font>"); |
| |
close $Socket; |
| my ($exedom,$exeuser,$udom,$uname,$what) =split(/:/,$tail); |
return undef; |
| &Debug("cmd = ".$cmd." exedom= ".$exedom."user = ".$exeuser." udom=".$udom. |
} else { |
| "what = ".$what); |
chomp($initcmd); # Get rid of \n in filename. |
| my $namespace='roles'; |
my ($init, $type, $name) = split(/:/, $initcmd); |
| chomp($what); |
Debug(" Init command: $init $type $name "); |
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
# Require that $init = init, and $type = local: Otherwise |
| # |
# the caller is insane: |
| # Log the attempt to set a role. The {}'s here ensure that the file |
|
| # handle is open for the minimal amount of time. Since the flush |
if(($init ne "init") && ($type ne "local")) { |
| # is done on close this improves the chances the log will be an un- |
&logthis('<font color = "red"> LocalConnection: caller is insane! ' |
| # corrupted ordered thing. |
."init = $init, and type = $type </font>"); |
| { |
close($Socket);; |
| my $hfh; |
return undef; |
| if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
|
| print $hfh "P:$now:$exedom:$exeuser:$what\n"; |
} |
| } |
# Now get the key filename: |
| } |
|
| my @pairs=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", &GDBM_WRCREAT(),0640)) { |
|
| foreach my $pair (@pairs) { |
|
| my ($key,$value)=split(/=/,$pair); |
|
| &ManagePermissions($key, $udom, $uname, |
|
| &GetAuthType( $udom, $uname)); |
|
| $hash{$key}=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting rolesput\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting rolesput\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("rolesput", \&RolesPutHandler, 1,1,0); # Encoded client only. |
|
| # |
|
| # Deletes (removes) a role for a user. This is equivalent to removing |
|
| # a permissions package associated with the role from the user's profile. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command (rolesdel) |
|
| # $tail - The remainder of the request line. This consists |
|
| # of: |
|
| # The domain and user requesting the change (logged) |
|
| # The domain and user being changed. |
|
| # The roles being revoked. These are shipped to us |
|
| # as a bunch of & separated role name keywords. |
|
| # $client - The file handle open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing |
|
| # 0 - Exit. |
|
| # |
|
| sub RolesDeleteHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($exedom,$exeuser,$udom,$uname,$what)=split(/:/,$tail); |
|
| &Debug("cmd = ".$cmd." exedom= ".$exedom."user = ".$exeuser." udom=".$udom. |
|
| "what = ".$what); |
|
| my $namespace='roles'; |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| # |
|
| # Log the attempt. This {}'ing is done to ensure that the |
|
| # logfile is flushed and closed as quickly as possible. Hopefully |
|
| # this preserves both time ordering and reduces the probability that |
|
| # messages will be interleaved. |
|
| # |
|
| { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
|
| print $hfh "D:$now:$exedom:$exeuser:$what\n"; |
|
| } |
|
| } |
|
| my @rolekeys=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", &GDBM_WRCREAT(),0640)) { |
|
| foreach my $key (@rolekeys) { |
|
| delete $hash{$key}; |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting rolesdel\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting rolesdel\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("rolesdel", \&RolesDeleteHandler, 1,1, 0); # Encoded client only |
|
| |
|
| # Unencrypted get from a user's profile database. See |
my $IDEAKey = lonlocal::ReadKeyFile($name); |
| # GetProfileEntryEncrypted for a version that does end-to-end encryption. |
return $IDEAKey; |
| # This function retrieves a keyed item from a specific named database in the |
} |
| # user's directory. |
|
| # |
|
| # Parameters: |
|
| # $cmd - Command request keyword (get). |
|
| # $tail - Tail of the command. This is a colon separated list |
|
| # consisting of the domain and username that uniquely |
|
| # identifies the profile, |
|
| # The 'namespace' which selects the gdbm file to |
|
| # do the lookup in, |
|
| # & separated list of keys to lookup. Note that |
|
| # the values are returned as an & separated list too. |
|
| # $client - File descriptor open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing. |
|
| # 0 - Exit. |
|
| # |
|
| sub GetProfileEntry { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput= "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace,$what) = split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($what); |
|
| my @queries=split(/\&/,$what); |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", &GDBM_READER(),0640)) { |
|
| for (my $i=0;$i<=$#queries;$i++) { |
|
| $qresult.="$hash{$queries[$i]}&"; # Presumably failure gives empty string. |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; # Remove trailing & from last lookup. |
|
| Reply($client, "$qresult\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting get\n", $userinput); |
|
| } |
|
| } else { |
|
| if ($!+0 == 2) { # +0 coerces errno -> number 2 is ENOENT |
|
| Failure($client, "error:No such file or ". |
|
| "GDBM reported bad block error\n", $userinput); |
|
| } else { # Some other undifferentiated err. |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting get\n", $userinput); |
|
| } |
|
| } |
|
| return 1; |
|
| } |
} |
| RegisterHandler("get", \&GetProfileEntry, 0,1,0); |
#------------------------------------------------------------------------------ |
| # |
# |
| # Process the encrypted get request. Note that the request is sent |
# SSLConnection |
| # in clear, but the reply is encrypted. This is a small covert channel: |
# Completes the formation of an ssh authenticated connection. The |
| # information about the sensitive keys is given to the snooper. Just not |
# socket is promoted to an ssl socket. If this promotion and the associated |
| # information about the values of the sensitive key. Hmm if I wanted to |
# certificate exchange are successful, the IDEA key is generated and sent |
| # know these I'd snoop for the egets. Get the profile item names from them |
# to the remote peer via the SSL tunnel. The IDEA key is also returned to |
| # and then issue a get for them since there's no enforcement of the |
# the caller after the SSL tunnel is torn down. |
| # requirement of an encrypted get for particular profile items. If I |
|
| # were re-doing this, I'd force the request to be encrypted as well as the |
|
| # reply. I'd also just enforce encrypted transactions for all gets since |
|
| # that would prevent any covert channel snooping. |
|
| # |
|
| # Parameters: |
|
| # $cmd - Command keyword of request (eget). |
|
| # $tail - Tail of the command. See GetProfileEntry
# for more information about this. |
|
| # $client - File open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing |
|
| # 0 - server should exit. |
|
| sub GetProfileEntryEncrypted { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($cmd,$udom,$uname,$namespace,$what) = split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($what); |
|
| my @queries=split(/\&/,$what); |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
|
| for (my $i=0;$i<=$#queries;$i++) { |
|
| $qresult.="$hash{$queries[$i]}&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| if ($cipher) { |
|
| my $cmdlength=length($qresult); |
|
| $qresult.=" "; |
|
| my $encqresult=''; |
|
| for(my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { |
|
| $encqresult.= unpack("H16", $cipher->encrypt(substr($qresult, |
|
| $encidx, |
|
| 8))); |
|
| } |
|
| Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error:no_key\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting eget\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting eget\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("eget", \&GetProfileEncrypted, 0, 1, 0); |
|
| |
|
| # |
# |
| # Deletes a key in a user profile database. |
|
| # |
|
| # Parameters: |
|
| # $cmd - Command keyword (del). |
|
| # $tail - Command tail. IN this case a colon |
|
| # separated list containing: |
|
| # The domain and user that identifies uniquely |
|
| # the identity of the user. |
|
| # The profile namespace (name of the profile |
|
| # database file). |
|
| # & separated list of keywords to delete. |
|
| # $client - File open on client socket. |
|
| # Returns: |
|
| # 1 - Continue processing |
|
| # 0 - Exit server. |
|
| # |
|
| # |
|
| sub DeletProfileEntry { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace,$what) = split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
|
| print $hfh "D:$now:$what\n"; |
|
| } |
|
| } |
|
| my @keys=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
|
| foreach my $key (@keys) { |
|
| delete($hash{$key}); |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting del\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting del\n", $userinput); |
|
| } |
|
| return 1; |
|
| } |
|
| RegisterHandler("del", \&DeleteProfileEntry, 0, 1, 0); |
|
| # |
|
| # List the set of keys that are defined in a profile database file. |
|
| # A successful reply from this will contain an & separated list of |
|
| # the keys. |
|
| # Parameters: |
# Parameters: |
| # $cmd - Command request (keys). |
# Name Type Purpose |
| # $tail - Remainder of the request, a colon separated |
# $Socket IO::Socket::INET Plaintext socket. |
| # list containing domain/user that identifies the |
|
| # user being queried, and the database namespace |
|
| # (database filename essentially). |
|
| # $client - File open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing. |
|
| # 0 - Exit the server. |
|
| # |
# |
| sub GetProfileKeys { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace)=split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
|
| foreach my $key (keys %hash) { |
|
| $qresult.="$key&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| Reply($client, "$qresult\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting keys\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting keys\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("keys", \&GetProfileKeys, 0, 1, 0); |
|
| # |
|
| # Dump the contents of a user profile database. |
|
| # Note that this constitutes a very large covert channel too since |
|
| # the dump will return sensitive information that is not encrypted. |
|
| # The naive security assumption is that the session negotiation ensures |
|
| # our client is trusted and I don't believe that's assured at present. |
|
| # Sure want badly to go to ssl or tls. Of course if my peer isn't really |
|
| # a LonCAPA node they could have negotiated an encryption key too so >sigh<. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command request keyword (currentdump). |
|
| # $tail - Remainder of the request, consisting of a colon |
|
| # separated list that has the domain/username and |
|
| # the namespace to dump (database file). |
|
| # $client - file open on the remote client. |
|
| # Returns: |
# Returns: |
| # 1 - Continue processing. |
# IDEA key on success. |
| # 0 - Exit the server. |
# undef on failure. |
| # |
# |
| sub DumpProfileDatabase { |
sub SSLConnection { |
| my $cmd = shift; |
my $Socket = shift; |
| my $tail = shift; |
|
| my $client = shift; |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace) = split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| my $qresult=''; |
|
| my $proname=propath($udom,$uname); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", &GDBM_READER(),0640)) { |
|
| # Structure of %data: |
|
| # $data{$symb}->{$parameter}=$value; |
|
| # $data{$symb}->{'v.'.$parameter}=$version; |
|
| # since $parameter will be unescaped, we do not |
|
| # have to worry about silly parameter names... |
|
| my %data = (); # A hash of anonymous hashes.. |
|
| while (my ($key,$value) = each(%hash)) { |
|
| my ($v,$symb,$param) = split(/:/,$key); |
|
| next if ($v eq 'version' || $symb eq 'keys'); |
|
| next if (exists($data{$symb}) && |
|
| exists($data{$symb}->{$param}) && |
|
| $data{$symb}->{'v.'.$param} > $v); |
|
| $data{$symb}->{$param}=$value; |
|
| $data{$symb}->{'v.'.$param}=$v; |
|
| } |
|
| if (untie(%hash)) { |
|
| while (my ($symb,$param_hash) = each(%data)) { |
|
| while(my ($param,$value) = each (%$param_hash)){ |
|
| next if ($param =~ /^v\./); # Ignore versions... |
|
| # |
|
| # Just dump the symb=value pairs separated by & |
|
| # |
|
| $qresult.=$symb.':'.$param.'='.$value.'&'; |
|
| } |
|
| } |
|
| chop($qresult); |
|
| Reply($client , "$qresult\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting currentdump\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting currentdump\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
Debug("SSLConnection: "); |
| } |
my $KeyFile = lonssl::KeyFile(); |
| RegisterHandler("currentdump", \&DumpProfileDatabase, 0, 1, 0); |
if(!$KeyFile) { |
| # |
my $err = lonssl::LastError(); |
| # Dump a profile database with an optional regular expression |
&logthis("<font color=\"red\"> CRITICAL" |
| # to match against the keys. In this dump, no effort is made |
."Can't get key file $err </font>"); |
| # to separate symb from version information. Presumably the |
return undef; |
| # databases that are dumped by this command are of a different |
|
| # structure. Need to look at this and improve the documentation of |
|
| # both this and the currentdump handler. |
|
| # Parameters: |
|
| # $cmd - The command keyword. |
|
| # $tail - All of the characters after the $cmd: |
|
| # These are expected to be a colon |
|
| # separated list containing: |
|
| # domain/user - identifying the user. |
|
| # namespace - identifying the database. |
|
| # regexp - optional regular expression |
|
| # that is matched against |
|
| # database keywords to do |
|
| # selective dumps. |
|
| # $client - Channel open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing. |
|
| # Side effects: |
|
| # response is written to $client. |
|
| # |
|
| sub DumpWithRegexp { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace,$regexp)=split(/:/,$tail); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| if (defined($regexp)) { |
|
| $regexp=&unescape($regexp); |
|
| } else { |
|
| $regexp='.'; |
|
| } |
|
| my $qresult=''; |
|
| my $proname=propath($udom,$uname); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", |
|
| &GDBM_READER(),0640)) { |
|
| study($regexp); |
|
| while (my ($key,$value) = each(%hash)) { |
|
| if ($regexp eq '.') { |
|
| $qresult.=$key.'='.$value.'&'; |
|
| } else { |
|
| my $unescapeKey = &unescape($key); |
|
| if (eval('$unescapeKey=~/$regexp/')) { |
|
| $qresult.="$key=$value&"; |
|
| } |
|
| } |
|
| } |
|
| if (untie(%hash)) { |
|
| chop($qresult); |
|
| Reply($client, "$qresult\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting dump\n", $userinput); |
|
| } |
} |
| } else { |
my ($CACertificate, |
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
$Certificate) = lonssl::CertificateFile(); |
| "while attempting dump\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("dump", \&DumpWithRegexp, 0, 1, 0); |
|
| |
|
| # Store an aitem in any database but the roles database. |
# If any of the key, certificate or certificate authority |
| # |
# certificate filenames are not defined, this can't work. |
| # Parameters: |
|
| # $cmd - Request command keyword. |
|
| # $tail - Tail of the request. This is a colon |
|
| # separated list containing: |
|
| # domain/user - User and authentication domain. |
|
| # namespace - Name of the database being modified |
|
| # rid - Resource keyword to modify. |
|
| # what - new value associated with rid. |
|
| # |
|
| # $client - Socket open on the client. |
|
| # |
|
| # |
|
| # Returns: |
|
| # 1 (keep on processing). |
|
| # Side-Effects: |
|
| # Writes to the client |
|
| sub StoreHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$uname,$namespace,$rid,$what) =split(/:/,$tail); |
if((!$Certificate) || (!$CACertificate)) { |
| $namespace=~s/\//\_/g; |
my $err = lonssl::LastError(); |
| $namespace=~s/\W//g; |
&logthis("<font color=\"red\"> CRITICAL" |
| if ($namespace ne 'roles') { |
."Can't get certificates: $err </font>"); |
| chomp($what); |
|
| my $proname=propath($udom,$uname); |
|
| my $now=time; |
|
| unless ($namespace=~/^nohist\_/) { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
|
| print $hfh "P:$now:$rid:$what\n"; |
|
| } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", |
|
| &GDBM_WRCREAT(),0640)) { |
|
| my @previouskeys=split(/&/,$hash{"keys:$rid"}); |
|
| my $key; |
|
| $hash{"version:$rid"}++; |
|
| my $version=$hash{"version:$rid"}; |
|
| my $allkeys=''; |
|
| foreach my $pair (@pairs) { |
|
| my ($key,$value)=split(/=/,$pair); |
|
| $allkeys.=$key.':'; |
|
| $hash{"$version:$rid:$key"}=$value; |
|
| } |
|
| $hash{"$version:$rid:timestamp"}=$now; |
|
| $allkeys.='timestamp'; |
|
| $hash{"$version:keys:$rid"}=$allkeys; |
|
| if (untie(%hash)) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting store\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting store\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
return undef; |
| } |
} |
| RegisterHandler("store", \&StoreHandler, 0, 1, 0); |
Debug("Key: $KeyFile CA: $CACertificate Cert: $Certificate"); |
| # |
|
| # Restore a prior version of a resource. |
|
| # |
|
| # Parameters: |
|
| # $cmd - Command keyword. |
|
| # $tail - Remainder of the request which consists of: |
|
| # domain/user - User and auth. domain. |
|
| # namespace - name of resource database. |
|
| # rid - Resource id. |
|
| # $client - socket open on the client. |
|
| # |
|
| # Returns: |
|
| # 1 indicating the caller should not yet exit. |
|
| # Side-effects: |
|
| # Writes a reply to the client. |
|
| # |
|
| sub RestoreHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; # Only used for logging purposes. |
|
| |
|
| my ($cmd,$udom,$uname,$namespace,$rid) = split(/:/,$userinput); |
|
| $namespace=~s/\//\_/g; |
|
| $namespace=~s/\W//g; |
|
| chomp($rid); |
|
| my $proname=propath($udom,$uname); |
|
| my $qresult=''; |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname/$namespace.db", |
|
| &GDBM_READER(),0640)) { |
|
| my $version=$hash{"version:$rid"}; |
|
| $qresult.="version=$version&"; |
|
| my $scope; |
|
| for ($scope=1;$scope<=$version;$scope++) { |
|
| my $vkeys=$hash{"$scope:keys:$rid"}; |
|
| my @keys=split(/:/,$vkeys); |
|
| my $key; |
|
| $qresult.="$scope:keys=$vkeys&"; |
|
| foreach $key (@keys) { |
|
| $qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&"; |
|
| } |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| Reply( $client, "$qresult\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting restore\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting restore\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
|
| |
|
| |
# Indicate to our peer that we can procede with |
| |
# a transition to ssl authentication: |
| |
|
| } |
print $Socket "ok:ssl\n"; |
| RegisterHandler("restor", \&RestoreHandler, 0,1,0); |
|
| |
|
| # |
Debug("Approving promotion -> ssl"); |
| # Add a chat message to to a discussion board. |
# And do so: |
| # |
|
| # Parameters: |
my $SSLSocket = lonssl::PromoteServerSocket($Socket, |
| # $cmd - Request keyword. |
$CACertificate, |
| # $tail - Tail of the command. A colon separated list |
$Certificate, |
| # containing: |
$KeyFile); |
| # cdom - Domain on which the chat board lives |
if(! ($SSLSocket) ) { # SSL socket promotion failed. |
| # cnum - Identifier of the discussion group. |
my $err = lonssl::LastError(); |
| # post - Body of the posting. |
&logthis("<font color=\"red\"> CRITICAL " |
| # $client - Socket open on the client. |
."SSL Socket promotion failed: $err </font>"); |
| # Returns: |
return undef; |
| # 1 - Indicating caller should keep on processing. |
} |
| # |
Debug("SSL Promotion successful"); |
| # Side-effects: |
|
| # writes a reply to the client. |
|
| # |
|
| # |
|
| sub SendChatHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($cdom,$cnum,$newpost)=split(/\:/,$tail); |
# |
| &chatadd($cdom,$cnum,$newpost); |
# The only thing we'll use the socket for is to send the IDEA key |
| Reply($client, "ok\n", $userinput); |
# to the peer: |
| |
|
| return 1; |
my $Key = lonlocal::CreateCipherKey(); |
| } |
print $SSLSocket "$Key\n"; |
| RegisterHandler("chatsend", \&SendChatHandler, 0, 1, 0); |
|
| # |
|
| # Retrieve the set of chat messagss from a discussion board. |
|
| # |
|
| # Parameters: |
|
| # $cmd - Command keyword that initiated the request. |
|
| # $tail - Remainder of the request after the command |
|
| # keyword. In this case a colon separated list of |
|
| # chat domain - Which discussion board. |
|
| # chat id - Discussion thread(?) |
|
| # domain/user - Authentication domain and username |
|
| # of the requesting person. |
|
| # $client - Socket open on the client program. |
|
| # Returns: |
|
| # 1 - continue processing |
|
| # Side effects: |
|
| # Response is written to the client. |
|
| # |
|
| sub RetrieveChatHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($cdom,$cnum,$udom,$uname)=split(/\:/,$tail); |
|
| my $reply=''; |
|
| foreach (&getchat($cdom,$cnum,$udom,$uname)) { |
|
| $reply.=&escape($_).':'; |
|
| } |
|
| $reply=~s/\:$//; |
|
| Reply($client, $reply."\n", $userinput); |
|
| |
|
| |
lonssl::Close($SSLSocket); |
| |
|
| return 1; |
Debug("Key exchange complete: $Key"); |
| } |
|
| RegisterHandler("chatretr", \&RetrieveChatHandler, 0, 1, 0); |
|
| # |
|
| # Initiate a query of an sql database. SQL query repsonses get put in |
|
| # a file for later retrieval. This prevents sql query results from |
|
| # bottlenecking the system. Note that with loncnew, perhaps this is |
|
| # less of an issue since multiple outstanding requests can be concurrently |
|
| # serviced. |
|
| # |
|
| # Parameters: |
|
| # $cmd - COmmand keyword that initiated the request. |
|
| # $tail - Remainder of the command after the keyword. |
|
| # For this function, this consists of a query and |
|
| # 3 arguments that are self-documentingly labelled |
|
| # in the original arg1, arg2, arg3. |
|
| # $client - Socket open on the client. |
|
| # Return: |
|
| # 1 - Indicating processing should continue. |
|
| # Side-effects: |
|
| # a reply is written to $client. |
|
| # |
|
| sub SendQueryHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($query,$arg1,$arg2,$arg3)=split(/\:/,$tail); |
|
| $query=~s/\n*$//g; |
|
| Reply($client, "". sqlreply("$clientname\&$query". |
|
| "\&$arg1"."\&$arg2"."\&$arg3")."\n", |
|
| $userinput); |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("querysend", \&SendQueryHandler, 0, 1, 0); |
|
| |
|
| # |
|
| # Add a reply to an sql query. SQL queries are done asyncrhonously. |
|
| # The query is submitted via a "querysend" transaction. |
|
| # There it is passed on to the lonsql daemon, queued and issued to |
|
| # mysql. |
|
| # This transaction is invoked when the sql transaction is complete |
|
| # it stores the query results in flie and indicates query completion. |
|
| # presumably local software then fetches this response... I'm guessing |
|
| # the sequence is: lonc does a querysend, we ask lonsql to do it. |
|
| # lonsql on completion of the query interacts with the lond of our |
|
| # client to do a query reply storing two files: |
|
| # - id - The results of the query. |
|
| # - id.end - Indicating the transaction completed. |
|
| # NOTE: id is a unique id assigned to the query and querysend time. |
|
| # Parameters: |
|
| # $cmd - Command keyword that initiated this request. |
|
| # $tail - Remainder of the tail. In this case that's a colon |
|
| # separated list containing the query Id and the |
|
| # results of the query. |
|
| # $client - Socket open on the client. |
|
| # Return: |
|
| # 1 - Indicating that we should continue processing. |
|
| # Side effects: |
|
| # ok written to the client. |
|
| # |
|
| sub ReplyQueryHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($cmd,$id,$reply)=split(/:/,$userinput); |
|
| my $store; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if ($store=IO::File->new(">$execdir/tmp/$id")) { |
|
| $reply=~s/\&/\n/g; |
|
| print $store $reply; |
|
| close $store; |
|
| my $store2=IO::File->new(">$execdir/tmp/$id.end"); |
|
| print $store2 "done\n"; |
|
| close $store2; |
|
| Reply($client, "ok\n", $userinput); |
|
| } |
|
| else { |
|
| Failure($client, "error: ".($!+0) |
|
| ." IO::File->new Failed ". |
|
| "while attempting queryreply\n", $userinput); |
|
| } |
|
| |
|
| |
|
| return 1; |
return $Key; |
| } |
} |
| RegisterHandler("queryreply", \&ReplyQueryHandler, 0, 1, 0); |
|
| # |
# |
| # Process the courseidput query. Not quite sure what this means |
# InsecureConnection: |
| # at the system level sense. It appears a gdbm file in the |
# If insecure connections are allowd, |
| # /home/httpd/lonUsers/$domain/nohist_courseids is tied and |
# exchange a challenge with the client to 'validate' the |
| # a set of entries made in that database. |
# client (not really, but that's the protocol): |
| # |
# We produce a challenge string that's sent to the client. |
| # Parameters: |
# The client must then echo the challenge verbatim to us. |
| # $cmd - The command keyword that initiated this request. |
|
| # $tail - Tail of the command. In this case consists of a colon |
|
| # separated list contaning the domain to apply this to and |
|
| # an ampersand separated list of keyword=value pairs. |
|
| # $client - Socket open on the client. |
|
| # Returns: |
|
| # 1 - indicating that processing should continue |
|
| # |
# |
| # Side effects: |
# Parameter: |
| # reply is written to the client. |
# Socket - Socket open on the client. |
| |
# Returns: |
| |
# 1 - success. |
| |
# 0 - failure (e.g.mismatch or insecure not allowed). |
| # |
# |
| sub PutCourseIdHandler { |
sub InsecureConnection { |
| my $cmd = shift; |
my $Socket = shift; |
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$what)=split(/:/,$tail); |
|
| chomp($what); |
|
| $udom=~s/\W//g; |
|
| my $proname= |
|
| "$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
|
| my $now=time; |
|
| my @pairs=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
|
| foreach my $pair (@pairs) { |
|
| my ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value.':'.$now; |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error: ".($!+0) |
|
| ." untie(GDBM) Failed ". |
|
| "while attempting courseidput\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure( $client, "error: ".($!+0) |
|
| ." tie(GDBM) Failed ". |
|
| "while attempting courseidput\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
# Don't even start if insecure connections are not allowed. |
| } |
|
| RegisterHandler("courseidput", \&PutCourseIdHandler, 0, 1, 0); |
|
| |
|
| # Retrieves the value of a course id resource keyword pattern |
if(! $perlvar{londAllowInsecure}) { # Insecure connections not allowed. |
| # defined since a starting date. Both the starting date and the |
return 0; |
| # keyword pattern are optional. If the starting date is not supplied it |
|
| # is treated as the beginning of time. If the pattern is not found, |
|
| # it is treatred as "." matching everything. |
|
| # |
|
| # Parameters: |
|
| # $cmd - Command keyword that resulted in us being dispatched. |
|
| # $tail - The remainder of the command that, in this case, consists |
|
| # of a colon separated list of: |
|
| # domain - The domain in which the course database is |
|
| # defined. |
|
| # since - Optional parameter describing the minimum |
|
| # time of definition(?) of the resources that |
|
| # will match the dump. |
|
| # description - regular expression that is used to filter |
|
| # the dump. Only keywords matching this regexp |
|
| # will be used. |
|
| # $client - The socket open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing. |
|
| # Side Effects: |
|
| # a reply is written to $client. |
|
| sub DumpCourseIdHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$since,$description) =split(/:/,$tail); |
|
| if (defined($description)) { |
|
| $description=&unescape($description); |
|
| } else { |
|
| $description='.'; |
|
| } |
|
| unless (defined($since)) { $since=0; } |
|
| my $qresult=''; |
|
| my $proname = "$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
|
| while (my ($key,$value) = each(%hash)) { |
|
| my ($descr,$lasttime)=split(/\:/,$value); |
|
| if ($lasttime<$since) { |
|
| next; |
|
| } |
|
| if ($description eq '.') { |
|
| $qresult.=$key.'='.$descr.'&'; |
|
| } else { |
|
| my $unescapeVal = &unescape($descr); |
|
| if (eval('$unescapeVal=~/$description/i')) { |
|
| $qresult.="$key=$descr&"; |
|
| } |
|
| } |
|
| } |
|
| if (untie(%hash)) { |
|
| chop($qresult); |
|
| Reply($client, "$qresult\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting courseiddump\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting courseiddump\n", $userinput); |
|
| } |
|
| |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("courseiddump", \&DumpCourseIdHandler, 0, 1, 0); |
|
| # |
|
| # Puts an id to a domains id database. |
|
| # |
|
| # Parameters: |
|
| # $cmd - The command that triggered us. |
|
| # $tail - Remainder of the request other than the command. This is a |
|
| # colon separated list containing: |
|
| # $domain - The domain for which we are writing the id. |
|
| # $pairs - The id info to write... this is and & separated list |
|
| # of keyword=value. |
|
| # $client - Socket open on the client. |
|
| # Returns: |
|
| # 1 - Continue processing. |
|
| # Side effects: |
|
| # reply is written to $client. |
|
| # |
|
| sub PutIdHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$cmd:$tail"; |
|
| |
|
| my ($udom,$what)=split(/:/,$tail); |
|
| chomp($what); |
|
| $udom=~s/\W//g; |
|
| my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
|
| my $now=time; |
|
| { |
|
| my $hfh; |
|
| if ($hfh=IO::File->new(">>$proname.hist")) { |
|
| print $hfh "P:$now:$what\n"; |
|
| } |
|
| } |
|
| my @pairs=split(/\&/,$what); |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
|
| foreach my $pair (@pairs) { |
|
| my ($key,$value)=split(/=/,$pair); |
|
| $hash{$key}=$value; |
|
| } |
|
| if (untie(%hash)) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)." untie(GDBM) Failed ". |
|
| "while attempting idput\n", $userinput); |
|
| } |
} |
| } else { |
|
| Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting idput\n", $userinput); |
|
| } |
|
| |
|
| return 1; |
# Fabricate a challenge string and send it.. |
| } |
|
| |
|
| RegisterHandler("idput", \&PutIdHandler, 0, 1, 0); |
my $challenge = "$$".time; # pid + time. |
| # |
print $Socket "$challenge\n"; |
| # Retrieves a set of id values from the id database. |
&status("Waiting for challenge reply"); |
| # Returns an & separated list of results, one for each requested id to the |
|
| # client. |
my $answer = <$Socket>; |
| # |
$answer =~s/\W//g; |
| # Parameters: |
if($challenge eq $answer) { |
| # $cmd - Command keyword that caused us to be dispatched. |
return 1; |
| # $tail - Tail of the command. Consists of a colon separated: |
|
| # domain - the domain whose id table we dump |
|
| # ids Consists of an & separated list of |
|
| # id keywords whose values will be fetched. |
|
| # nonexisting keywords will have an empty value. |
|
| # $client - Socket open on the client. |
|
| # |
|
| # Returns: |
|
| # 1 - indicating processing should continue. |
|
| # Side effects: |
|
| # An & separated list of results is written to $client. |
|
| # |
|
| sub GetIdHandler { |
|
| my $cmd = shift; |
|
| my $tail = shift; |
|
| my $client = shift; |
|
| |
|
| my $userinput = "$client:$tail"; |
|
| |
|
| my ($udom,$what)=split(/:/,$tail); |
|
| chomp($what); |
|
| $udom=~s/\W//g; |
|
| my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
|
| my @queries=split(/\&/,$what); |
|
| my $qresult=''; |
|
| my %hash; |
|
| if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
|
| for (my $i=0;$i<=$#queries;$i++) { |
|
| $qresult.="$hash{$queries[$i]}&"; |
|
| } |
|
| if (untie(%hash)) { |
|
| $qresult=~s/\&$//; |
|
| Reply($client, "$qresult\n", $userinput); |
|
| } else { |
} else { |
| Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ". |
logthis("<font color='blue'>WARNING client did not respond to challenge</font>"); |
| "while attempting idget\n",$userinput); |
&status("No challenge reqply"); |
| |
return 0; |
| } |
} |
| } else { |
|
| Failure($client, "error: ".($!+0)." tie(GDBM) Failed ". |
|
| "while attempting idget\n",$userinput); |
|
| } |
|
| |
|
| return 1; |
|
| } |
|
| RegisterHandler("idget", \&GetIdHandler, 0, 1, 0); |
|
| #------------------------------------------------------------------------------------ |
|
| # |
|
| # Process a Request. Takes a request from the client validates |
|
| # it and performs the operation requested by it. Returns |
|
| # a response to the client. |
|
| # |
|
| # Parameters: |
|
| # request - A string containing the user's request. |
|
| # Returns: |
|
| # 0 - Requested to exit, caller should shut down. |
|
| # 1 - Accept additional requests from the client. |
|
| # |
|
| sub ProcessRequest { |
|
| my $Request = shift; |
|
| my $KeepGoing = 1; # Assume we're not asked to stop. |
|
| |
|
| my $wasenc=0; |
|
| my $userinput = $Request; # for compatibility with oldcode <yeach> |
|
| |
|
| |
|
| # ------------------------------------------------------------ See if encrypted |
|
| |
|
| if($userinput =~ /^enc/) { |
|
| $wasenc = 1; |
|
| $userinput = Decipher($userinput); |
|
| if(! $userinput) { |
|
| Failure($client,"error:Encrypted data without negotiating key"); |
|
| return 0; # Break off with this imposter. |
|
| } |
|
| } |
|
| # Split off the request keyword from the rest of the stuff. |
|
| |
|
| my ($command, $tail) = split(/:/, $userinput, 2); |
|
| |
|
| |
|
| # ------------------------------------------------------------- Normal commands |
|
| |
|
| # |
|
| # If the command is in the hash, then execute it via the hash dispatch: |
|
| # |
|
| if(defined $Dispatcher{$command}) { |
|
| |
|
| my $DispatchInfo = $Dispatcher{$command}; |
|
| my $Handler = $$DispatchInfo[0]; |
|
| my $NeedEncode = $$DispatchInfo[1]; |
|
| my $ClientTypes = $$DispatchInfo[2]; |
|
| |
|
| # Validate the request: |
|
| |
|
| my $ok = 1; |
|
| if($NeedEncode && (!$wasenc)) { |
|
| Reply($client, "refused\n", $userinput); |
|
| $ok = 0; |
|
| } |
|
| if(isClient && (($ClientTypes & $CLIENT_OK) == 0)) { |
|
| Reply($client, "refused\n", $userinput); |
|
| $ok = 0; |
|
| } |
|
| if(isManager && (($ClientTypes & $MANAGER_OK) == 0)) { |
|
| Reply($client, "refused\n", $userinput); |
|
| $ok = 0; |
|
| } |
|
| if($ok) { |
|
| $KeepGoing = &$Handler($command, $tail, $client); |
|
| } |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| # ---------------------------------------------------------------------- tmpput |
|
| } elsif ($userinput =~ /^tmpput/) { |
|
| if(isClient) { |
|
| my ($cmd,$what)=split(/:/,$userinput); |
|
| my $store; |
|
| $tmpsnum++; |
|
| my $id=$$.'_'.$clientip.'_'.$tmpsnum; |
|
| $id=~s/\W/\_/g; |
|
| $what=~s/\n//g; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) { |
|
| print $store $what; |
|
| close $store; |
|
| Reply($client, "$id\n", $userinput); |
|
| } |
|
| else { |
|
| Failure( $client, "error: ".($!+0)."IO::File->new Failed ". |
|
| "while attempting tmpput\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| |
|
| } |
|
| |
|
| # ---------------------------------------------------------------------- tmpget |
|
| } elsif ($userinput =~ /^tmpget/) { |
|
| if(isClient) { |
|
| my ($cmd,$id)=split(/:/,$userinput); |
|
| chomp($id); |
|
| $id=~s/\W/\_/g; |
|
| my $store; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if ($store=IO::File->new("$execdir/tmp/$id.tmp")) { |
|
| my $reply=<$store>; |
|
| Reply( $client, "$reply\n", $userinput); |
|
| close $store; |
|
| } |
|
| else { |
|
| Failure( $client, "error: ".($!+0)."IO::File->new Failed ". |
|
| "while attempting tmpget\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| |
|
| } |
|
| # ---------------------------------------------------------------------- tmpdel |
|
| } elsif ($userinput =~ /^tmpdel/) { |
|
| if(isClient) { |
|
| my ($cmd,$id)=split(/:/,$userinput); |
|
| chomp($id); |
|
| $id=~s/\W/\_/g; |
|
| my $execdir=$perlvar{'lonDaemons'}; |
|
| if (unlink("$execdir/tmp/$id.tmp")) { |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure( $client, "error: ".($!+0)."Unlink tmp Failed ". |
|
| "while attempting tmpdel\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| } |
|
| # -------------------------------------------------------------------------- ls |
|
| } elsif ($userinput =~ /^ls/) { |
|
| if(isClient) { |
|
| my ($cmd,$ulsdir)=split(/:/,$userinput); |
|
| my $ulsout=''; |
|
| my $ulsfn; |
|
| if (-e $ulsdir) { |
|
| if(-d $ulsdir) { |
|
| if (opendir(LSDIR,$ulsdir)) { |
|
| while ($ulsfn=readdir(LSDIR)) { |
|
| my @ulsstats=stat($ulsdir.'/'.$ulsfn); |
|
| $ulsout.=$ulsfn.'&'. |
|
| join('&',@ulsstats).':'; |
|
| } |
|
| closedir(LSDIR); |
|
| } |
|
| } else { |
|
| my @ulsstats=stat($ulsdir); |
|
| $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
|
| } |
|
| } else { |
|
| $ulsout='no_such_dir'; |
|
| } |
|
| if ($ulsout eq '') { $ulsout='empty'; } |
|
| Reply($client, "$ulsout\n", $userinput); |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| |
|
| } |
|
| # ----------------------------------------------------------------- setannounce |
|
| } elsif ($userinput =~ /^setannounce/) { |
|
| if (isClient) { |
|
| my ($cmd,$announcement)=split(/:/,$userinput); |
|
| chomp($announcement); |
|
| $announcement=&unescape($announcement); |
|
| if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}. |
|
| '/announcement.txt')) { |
|
| print $store $announcement; |
|
| close $store; |
|
| Reply($client, "ok\n", $userinput); |
|
| } else { |
|
| Failure($client, "error: ".($!+0)."\n", $userinput); |
|
| } |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| |
|
| } |
|
| # ------------------------------------------------------------------ Hanging up |
|
| } elsif (($userinput =~ /^exit/) || |
|
| ($userinput =~ /^init/)) { # no restrictions. |
|
| &logthis("Client $clientip ($clientname) hanging up: $userinput"); |
|
| Reply($client, "bye\n", $userinput); |
|
| $client->shutdown(2); # shutdown the socket forcibly. |
|
| $client->close(); |
|
| $KeepGoing = 0; # Flag to exit the program. |
|
| |
|
| # ---------------------------------- set current host/domain |
|
| } elsif ($userinput =~ /^sethost:/) { |
|
| if (isClient) { |
|
| Reply($client, &sethost($userinput)."\n", $userinput); |
|
| } else { |
|
| Failure($client, "refused\n", $userinput); |
|
| } |
|
| #---------------------------------- request file (?) version. |
|
| } elsif ($userinput =~/^version:/) { |
|
| if (isClient) { |
|
| Reply($client, &version($userinput)."\n", $userinput); |
|
| } else { |
|
| Reply( $client, "refused\n", $userinput); |
|
| } |
|
| # ------------------------------------------------------------- unknown command |
|
| |
|
| } else { |
|
| # unknown command |
|
| Failure($client, "unknown_cmd\n", $userinput); |
|
| } |
|
| |
|
| return $KeepGoing; |
|
| } |
} |
| |
|
| |
|
| # |
# |
| # GetCertificate: Given a transaction that requires a certificate, |
# GetCertificate: Given a transaction that requires a certificate, |
| # this function will extract the certificate from the transaction |
# this function will extract the certificate from the transaction |
|
Line 2649 sub GetCertificate {
|
Line 349 sub GetCertificate {
|
| return $clientip; |
return $clientip; |
| } |
} |
| |
|
| |
# |
| |
# Return true if client is a manager. |
| |
# |
| |
sub isManager { |
| |
return (($ConnectionType eq "manager") || ($ConnectionType eq "both")); |
| |
} |
| |
# |
| |
# Return tru if client can do client functions |
| |
# |
| |
sub isClient { |
| |
return (($ConnectionType eq "client") || ($ConnectionType eq "both")); |
| |
} |
| |
|
| |
|
| # |
# |
|
Line 2658 sub GetCertificate {
|
Line 370 sub GetCertificate {
|
| # - This allows dynamic changes to the manager table |
# - This allows dynamic changes to the manager table |
| # without the need to signal to the lond. |
# without the need to signal to the lond. |
| # |
# |
| |
|
| sub ReadManagerTable { |
sub ReadManagerTable { |
| |
|
| # Clean out the old table first.. |
# Clean out the old table first.. |
|
Line 2675 sub ReadManagerTable {
|
Line 386 sub ReadManagerTable {
|
| while(my $host = <MANAGERS>) { |
while(my $host = <MANAGERS>) { |
| chomp($host); |
chomp($host); |
| if ($host =~ "^#") { # Comment line. |
if ($host =~ "^#") { # Comment line. |
| logthis('<font color="green"> Skipping line: '. "$host</font>\n"); |
|
| next; |
next; |
| } |
} |
| if (!defined $hostip{$host}) { # This is a non cluster member |
if (!defined $hostip{$host}) { # This is a non cluster member |
|
Line 2725 sub ValidManager {
|
Line 435 sub ValidManager {
|
| # 1 - Success. |
# 1 - Success. |
| # |
# |
| sub CopyFile { |
sub CopyFile { |
| my $oldfile = shift; |
|
| my $newfile = shift; |
my ($oldfile, $newfile) = @_; |
| |
|
| # The file must exist: |
# The file must exist: |
| |
|
|
Line 2826 sub AdjustHostContents {
|
Line 536 sub AdjustHostContents {
|
| # 0 - failure and $! has an errno. |
# 0 - failure and $! has an errno. |
| # |
# |
| sub InstallFile { |
sub InstallFile { |
| my $Filename = shift; |
|
| my $Contents = shift; |
my ($Filename, $Contents) = @_; |
| my $TempFile = $Filename.".tmp"; |
my $TempFile = $Filename.".tmp"; |
| |
|
| # Open the file for write: |
# Open the file for write: |
|
Line 2850 sub InstallFile {
|
Line 560 sub InstallFile {
|
| |
|
| return 1; |
return 1; |
| } |
} |
| |
|
| |
|
| # |
# |
| # ConfigFileFromSelector: converts a configuration file selector |
# ConfigFileFromSelector: converts a configuration file selector |
| # (one of host or domain at this point) into a |
# (one of host or domain at this point) into a |
|
Line 2939 sub PushFile {
|
Line 651 sub PushFile {
|
| &logthis('<font color="red"> Pushfile: unable to install ' |
&logthis('<font color="red"> Pushfile: unable to install ' |
| .$tablefile." $! </font>"); |
.$tablefile." $! </font>"); |
| return "error:$!"; |
return "error:$!"; |
| } |
} else { |
| else { |
|
| &logthis('<font color="green"> Installed new '.$tablefile |
&logthis('<font color="green"> Installed new '.$tablefile |
| ."</font>"); |
."</font>"); |
| |
|
|
Line 3064 sub isValidEditCommand {
|
Line 775 sub isValidEditCommand {
|
| # file being edited. |
# file being edited. |
| # |
# |
| sub ApplyEdit { |
sub ApplyEdit { |
| my $directive = shift; |
|
| my $editor = shift; |
my ($directive, $editor) = @_; |
| |
|
| # Break the directive down into its command and its parameters |
# Break the directive down into its command and its parameters |
| # (at most two at this point. The meaning of the parameters, if in fact |
# (at most two at this point. The meaning of the parameters, if in fact |
|
Line 3149 sub AdjustOurHost {
|
Line 860 sub AdjustOurHost {
|
| # editor - Editor containing the file. |
# editor - Editor containing the file. |
| # |
# |
| sub ReplaceConfigFile { |
sub ReplaceConfigFile { |
| my $filename = shift; |
|
| my $editor = shift; |
my ($filename, $editor) = @_; |
| |
|
| CopyFile ($filename, $filename.".old"); |
CopyFile ($filename, $filename.".old"); |
| |
|
|
Line 3219 sub EditFile {
|
Line 930 sub EditFile {
|
| |
|
| return "ok\n"; |
return "ok\n"; |
| } |
} |
| |
|
| |
#--------------------------------------------------------------- |
| |
# |
| |
# Manipulation of hash based databases (factoring out common code |
| |
# for later use as we refactor. |
| |
# |
| |
# Ties a domain level resource file to a hash. |
| |
# If requested a history entry is created in the associated hist file. |
| |
# |
| |
# Parameters: |
| |
# domain - Name of the domain in which the resource file lives. |
| |
# namespace - Name of the hash within that domain. |
| |
# how - How to tie the hash (e.g. GDBM_WRCREAT()). |
| |
# loghead - Optional parameter, if present a log entry is created |
| |
# in the associated history file and this is the first part |
| |
# of that entry. |
| |
# logtail - Goes along with loghead, The actual logentry is of the |
| |
# form $loghead:<timestamp>:logtail. |
| |
# Returns: |
| |
# Reference to a hash bound to the db file or alternatively undef |
| |
# if the tie failed. |
| |
# |
| |
sub tie_domain_hash { |
| |
my ($domain,$namespace,$how,$loghead,$logtail) = @_; |
| |
|
| |
# Filter out any whitespace in the domain name: |
| |
|
| |
$domain =~ s/\W//g; |
| |
|
| |
# We have enough to go on to tie the hash: |
| |
|
| |
my $user_top_dir = $perlvar{'lonUsersDir'}; |
| |
my $domain_dir = $user_top_dir."/$domain"; |
| |
my $resource_file = $domain_dir."/$namespace.db"; |
| |
my %hash; |
| |
if(tie(%hash, 'GDBM_File', $resource_file, $how, 0640)) { |
| |
if (defined($loghead)) { # Need to log the operation. |
| |
my $logFh = IO::File->new(">>$domain_dir/$namespace.hist"); |
| |
if($logFh) { |
| |
my $timestamp = time; |
| |
print $logFh "$loghead:$timestamp:$logtail\n"; |
| |
} |
| |
$logFh->close; |
| |
} |
| |
return \%hash; # Return the tied hash. |
| |
} else { |
| |
return undef; # Tie failed. |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Ties a user's resource file to a hash. |
| |
# If necessary, an appropriate history |
| |
# log file entry is made as well. |
| |
# This sub factors out common code from the subs that manipulate |
| |
# the various gdbm files that keep keyword value pairs. |
| |
# Parameters: |
| |
# domain - Name of the domain the user is in. |
| |
# user - Name of the 'current user'. |
| |
# namespace - Namespace representing the file to tie. |
| |
# how - What the tie is done to (e.g. GDBM_WRCREAT(). |
| |
# loghead - Optional first part of log entry if there may be a |
| |
# history file. |
| |
# what - Optional tail of log entry if there may be a history |
| |
# file. |
| |
# Returns: |
| |
# hash to which the database is tied. It's up to the caller to untie. |
| |
# undef if the has could not be tied. |
| |
# |
| |
sub tie_user_hash { |
| |
my ($domain,$user,$namespace,$how,$loghead,$what) = @_; |
| |
|
| |
$namespace=~s/\//\_/g; # / -> _ |
| |
$namespace=~s/\W//g; # whitespace eliminated. |
| |
my $proname = propath($domain, $user); |
| |
|
| |
# Tie the database. |
| |
|
| |
my %hash; |
| |
if(tie(%hash, 'GDBM_File', "$proname/$namespace.db", |
| |
$how, 0640)) { |
| |
# If this is a namespace for which a history is kept, |
| |
# make the history log entry: |
| |
if (($namespace =~/^nohist\_/) && (defined($loghead))) { |
| |
my $args = scalar @_; |
| |
Debug(" Opening history: $namespace $args"); |
| |
my $hfh = IO::File->new(">>$proname/$namespace.hist"); |
| |
if($hfh) { |
| |
my $now = time; |
| |
print $hfh "$loghead:$now:$what\n"; |
| |
} |
| |
$hfh->close; |
| |
} |
| |
return \%hash; |
| |
} else { |
| |
return undef; |
| |
} |
| |
|
| |
} |
| |
|
| |
#--------------------- Request Handlers -------------------------------------------- |
| |
# |
| |
# By convention each request handler registers itself prior to the sub |
| |
# declaration: |
| |
# |
| |
|
| |
#++ |
| |
# |
| |
# Handles ping requests. |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host we are |
| |
# known as. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
|
| |
sub ping_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
Debug("$cmd $tail $client .. $currenthostid:"); |
| |
|
| |
Reply( $client,"$currenthostid\n","$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("ping", \&ping_handler, 0, 1, 1); # Ping unencoded, client or manager. |
| |
|
| |
#++ |
| |
# |
| |
# Handles pong requests. Pong replies with our current host id, and |
| |
# the results of a ping sent to us via our lonc. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host we are |
| |
# connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
|
| |
sub pong_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $reply=&reply("ping",$clientname); |
| |
&Reply( $replyfd, "$currenthostid:$reply\n", "$cmd:$tail"); |
| |
return 1; |
| |
} |
| |
®ister_handler("pong", \&pong_handler, 0, 1, 1); # Pong unencoded, client or manager |
| |
|
| |
#++ |
| |
# Called to establish an encrypted session key with the remote client. |
| |
# Note that with secure lond, in most cases this function is never |
| |
# invoked. Instead, the secure session key is established either |
| |
# via a local file that's locked down tight and only lives for a short |
| |
# time, or via an ssl tunnel...and is generated from a bunch-o-random |
| |
# bits from /dev/urandom, rather than the predictable pattern used by |
| |
# by this sub. This sub is only used in the old-style insecure |
| |
# key negotiation. |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host |
| |
# known as. |
| |
# $clientname - Global variable that carries the name of the hsot we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Implicit Outputs: |
| |
# Reply information is sent to the client. |
| |
# $cipher is set with a reference to a new IDEA encryption object. |
| |
# |
| |
sub establish_key_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $buildkey=time.$$.int(rand 100000); |
| |
$buildkey=~tr/1-6/A-F/; |
| |
$buildkey=int(rand 100000).$buildkey.int(rand 100000); |
| |
my $key=$currenthostid.$clientname; |
| |
$key=~tr/a-z/A-Z/; |
| |
$key=~tr/G-P/0-9/; |
| |
$key=~tr/Q-Z/0-9/; |
| |
$key=$key.$buildkey.$key.$buildkey.$key.$buildkey; |
| |
$key=substr($key,0,32); |
| |
my $cipherkey=pack("H32",$key); |
| |
$cipher=new IDEA $cipherkey; |
| |
&Reply($replyfd, "$buildkey\n", "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("ekey", \&establish_key_handler, 0, 1,1); |
| |
|
| |
|
| |
# Handler for the load command. Returns the current system load average |
| |
# to the requestor. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host |
| |
# known as. |
| |
# $clientname - Global variable that carries the name of the hsot we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit. |
| |
# Side effects: |
| |
# Reply information is sent to the client. |
| |
sub load_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
# Get the load average from /proc/loadavg and calculate it as a percentage of |
| |
# the allowed load limit as set by the perl global variable lonLoadLim |
| |
|
| |
my $loadavg; |
| |
my $loadfile=IO::File->new('/proc/loadavg'); |
| |
|
| |
$loadavg=<$loadfile>; |
| |
$loadavg =~ s/\s.*//g; # Extract the first field only. |
| |
|
| |
my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'}; |
| |
|
| |
&Reply( $replyfd, "$loadpercent\n", "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
register_handler("load", \&load_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Process the userload request. This sub returns to the client the current |
| |
# user load average. It can be invoked either by clients or managers. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Implicit Inputs: |
| |
# $currenthostid - Global variable that carries the name of the host |
| |
# known as. |
| |
# $clientname - Global variable that carries the name of the hsot we're connected to. |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit inputs: |
| |
# whatever the userload() function requires. |
| |
# Implicit outputs: |
| |
# the reply is written to the client. |
| |
# |
| |
sub user_load_handler { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $userloadpercent=&userload(); |
| |
&Reply($replyfd, "$userloadpercent\n", "$cmd:$tail"); |
| |
|
| |
return 1; |
| |
} |
| |
register_handler("userload", \&user_load_handler, 0, 1, 0); |
| |
|
| |
# Process a request for the authorization type of a user: |
| |
# (userauth). |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit outputs: |
| |
# The user authorization type is written to the client. |
| |
# |
| |
sub user_authorization_type { |
| |
my ($cmd, $tail, $replyfd) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
# Pull the domain and username out of the command tail. |
| |
# and call get_auth_type to determine the authentication type. |
| |
|
| |
my ($udom,$uname)=split(/:/,$tail); |
| |
my $result = &get_auth_type($udom, $uname); |
| |
if($result eq "nouser") { |
| |
&Failure( $replyfd, "unknown_user\n", $userinput); |
| |
} else { |
| |
# |
| |
# We only want to pass the second field from get_auth_type |
| |
# for ^krb.. otherwise we'll be handing out the encrypted |
| |
# password for internals e.g. |
| |
# |
| |
my ($type,$otherinfo) = split(/:/,$result); |
| |
if($type =~ /^krb/) { |
| |
$type = $result; |
| |
} |
| |
&Reply( $replyfd, "$type:\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
®ister_handler("currentauth", \&user_authorization_type, 1, 1, 0); |
| |
|
| |
# Process a request by a manager to push a hosts or domain table |
| |
# to us. We pick apart the command and pass it on to the subs |
| |
# that already exist to do this. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $client - File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit Output: |
| |
# a reply is written to the client. |
| |
|
| |
sub push_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
# At this time we only know that the IP of our partner is a valid manager |
| |
# the code below is a hook to do further authentication (e.g. to resolve |
| |
# spoofing). |
| |
|
| |
my $cert = &GetCertificate($userinput); |
| |
if(&ValidManager($cert)) { |
| |
|
| |
# Now presumably we have the bona fides of both the peer host and the |
| |
# process making the request. |
| |
|
| |
my $reply = &PushFile($userinput); |
| |
&Reply($client, "$reply\n", $userinput); |
| |
|
| |
} else { |
| |
&Failure( $client, "refused\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("pushfile", \&push_file_handler, 1, 0, 1); |
| |
|
| |
|
| |
|
| |
# Process a reinit request. Reinit requests that either |
| |
# lonc or lond be reinitialized so that an updated |
| |
# host.tab or domain.tab can be processed. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $client - File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit output: |
| |
# a reply is sent to the client. |
| |
# |
| |
sub reinit_process_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $cert = &GetCertificate($userinput); |
| |
if(&ValidManager($cert)) { |
| |
chomp($userinput); |
| |
my $reply = &ReinitProcess($userinput); |
| |
&Reply( $client, "$reply\n", $userinput); |
| |
} else { |
| |
&Failure( $client, "refused\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
|
| |
®ister_handler("reinit", \&reinit_process_handler, 1, 0, 1); |
| |
|
| |
# Process the editing script for a table edit operation. |
| |
# the editing operation must be encrypted and requested by |
| |
# a manager host. |
| |
# |
| |
# Parameters: |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $client - File descriptor connected to the client |
| |
# Returns: |
| |
# 1 - Ok to continue processing. |
| |
# 0 - Program should exit |
| |
# Implicit output: |
| |
# a reply is sent to the client. |
| |
# |
| |
sub edit_table_handler { |
| |
my ($command, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$command:$tail"; |
| |
|
| |
my $cert = &GetCertificate($userinput); |
| |
if(&ValidManager($cert)) { |
| |
my($filetype, $script) = split(/:/, $tail); |
| |
if (($filetype eq "hosts") || |
| |
($filetype eq "domain")) { |
| |
if($script ne "") { |
| |
&Reply($client, # BUGBUG - EditFile |
| |
&EditFile($userinput), # could fail. |
| |
$userinput); |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
} |
| |
} else { |
| |
&Failure($client,"refused\n",$userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
register_handler("edit", \&edit_table_handler, 1, 0, 1); |
| |
|
| |
|
| |
# |
| |
# Authenticate a user against the LonCAPA authentication |
| |
# database. Note that there are several authentication |
| |
# possibilities: |
| |
# - unix - The user can be authenticated against the unix |
| |
# password file. |
| |
# - internal - The user can be authenticated against a purely |
| |
# internal per user password file. |
| |
# - kerberos - The user can be authenticated against either a kerb4 or kerb5 |
| |
# ticket granting authority. |
| |
# - user - The person tailoring LonCAPA can supply a user authentication |
| |
# mechanism that is per system. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub authenticate_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
# Regenerate the full input line |
| |
|
| |
my $userinput = $cmd.":".$tail; |
| |
|
| |
# udom - User's domain. |
| |
# uname - Username. |
| |
# upass - User's password. |
| |
|
| |
my ($udom,$uname,$upass)=split(/:/,$tail); |
| |
&Debug(" Authenticate domain = $udom, user = $uname, password = $upass"); |
| |
chomp($upass); |
| |
$upass=&unescape($upass); |
| |
|
| |
my $pwdcorrect = &validate_user($udom, $uname, $upass); |
| |
if($pwdcorrect) { |
| |
&Reply( $client, "authorized\n", $userinput); |
| |
# |
| |
# Bad credentials: Failed to authorize |
| |
# |
| |
} else { |
| |
&Failure( $client, "non_authorized\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
|
| |
register_handler("auth", \&authenticate_handler, 1, 1, 0); |
| |
|
| |
# |
| |
# Change a user's password. Note that this function is complicated by |
| |
# the fact that a user may be authenticated in more than one way: |
| |
# At present, we are not able to change the password for all types of |
| |
# authentication methods. Only for: |
| |
# unix - unix password or shadow passoword style authentication. |
| |
# local - Locally written authentication mechanism. |
| |
# For now, kerb4 and kerb5 password changes are not supported and result |
| |
# in an error. |
| |
# FUTURE WORK: |
| |
# Support kerberos passwd changes? |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
sub change_password_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = $cmd.":".$tail; # Reconstruct client's string. |
| |
|
| |
# |
| |
# udom - user's domain. |
| |
# uname - Username. |
| |
# upass - Current password. |
| |
# npass - New password. |
| |
|
| |
my ($udom,$uname,$upass,$npass)=split(/:/,$tail); |
| |
|
| |
$upass=&unescape($upass); |
| |
$npass=&unescape($npass); |
| |
&Debug("Trying to change password for $uname"); |
| |
|
| |
# First require that the user can be authenticated with their |
| |
# old password: |
| |
|
| |
my $validated = &validate_user($udom, $uname, $upass); |
| |
if($validated) { |
| |
my $realpasswd = &get_auth_type($udom, $uname); # Defined since authd. |
| |
|
| |
my ($howpwd,$contentpwd)=split(/:/,$realpasswd); |
| |
if ($howpwd eq 'internal') { |
| |
&Debug("internal auth"); |
| |
my $salt=time; |
| |
$salt=substr($salt,6,2); |
| |
my $ncpass=crypt($npass,$salt); |
| |
if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) { |
| |
&logthis("Result of password change for " |
| |
."$uname: pwchange_success"); |
| |
&Reply($client, "ok\n", $userinput); |
| |
} else { |
| |
&logthis("Unable to open $uname passwd " |
| |
."to change password"); |
| |
&Failure( $client, "non_authorized\n",$userinput); |
| |
} |
| |
} elsif ($howpwd eq 'unix') { |
| |
# Unix means we have to access /etc/password |
| |
&Debug("auth is unix"); |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
&Debug("Opening lcpasswd pipeline"); |
| |
my $pf = IO::File->new("|$execdir/lcpasswd > " |
| |
."$perlvar{'lonDaemons'}" |
| |
."/logs/lcpasswd.log"); |
| |
print $pf "$uname\n$npass\n$npass\n"; |
| |
close $pf; |
| |
my $err = $?; |
| |
my $result = ($err>0 ? 'pwchange_failure' : 'ok'); |
| |
&logthis("Result of password change for $uname: ". |
| |
&lcpasswdstrerror($?)); |
| |
&Reply($client, "$result\n", $userinput); |
| |
} else { |
| |
# this just means that the current password mode is not |
| |
# one we know how to change (e.g the kerberos auth modes or |
| |
# locally written auth handler). |
| |
# |
| |
&Failure( $client, "auth_mode_error\n", $userinput); |
| |
} |
| |
|
| |
} else { |
| |
&Failure( $client, "non_authorized\n", $userinput); |
| |
} |
| |
|
| |
return 1; |
| |
} |
| |
register_handler("passwd", \&change_password_handler, 1, 1, 0); |
| |
|
| |
|
| |
# |
| |
# Create a new user. User in this case means a lon-capa user. |
| |
# The user must either already exist in some authentication realm |
| |
# like kerberos or the /etc/passwd. If not, a user completely local to |
| |
# this loncapa system is created. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
sub add_user_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
|
| |
my ($udom,$uname,$umode,$npass)=split(/:/,$tail); |
| |
my $userinput = $cmd.":".$tail; # Reconstruct the full request line. |
| |
|
| |
&Debug("cmd =".$cmd." $udom =".$udom." uname=".$uname); |
| |
|
| |
|
| |
if($udom eq $currentdomainid) { # Reject new users for other domains... |
| |
|
| |
my $oldumask=umask(0077); |
| |
chomp($npass); |
| |
$npass=&unescape($npass); |
| |
my $passfilename = &password_path($udom, $uname); |
| |
&Debug("Password file created will be:".$passfilename); |
| |
if (-e $passfilename) { |
| |
&Failure( $client, "already_exists\n", $userinput); |
| |
} else { |
| |
my @fpparts=split(/\//,$passfilename); |
| |
my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2]; |
| |
my $fperror=''; |
| |
for (my $i=3;$i<= ($#fpparts-1);$i++) { |
| |
$fpnow.='/'.$fpparts[$i]; |
| |
unless (-e $fpnow) { |
| |
&logthis("mkdir $fpnow"); |
| |
unless (mkdir($fpnow,0777)) { |
| |
$fperror="error: ".($!+0)." mkdir failed while attempting " |
| |
."makeuser"; |
| |
} |
| |
} |
| |
} |
| |
unless ($fperror) { |
| |
my $result=&make_passwd_file($uname, $umode,$npass, $passfilename); |
| |
&Reply($client, $result, $userinput); #BUGBUG - could be fail |
| |
} else { |
| |
&Failure($client, "$fperror\n", $userinput); |
| |
} |
| |
} |
| |
umask($oldumask); |
| |
} else { |
| |
&Failure($client, "not_right_domain\n", |
| |
$userinput); # Even if we are multihomed. |
| |
|
| |
} |
| |
return 1; |
| |
|
| |
} |
| |
®ister_handler("makeuser", \&add_user_handler, 1, 1, 0); |
| |
|
| |
# |
| |
# Change the authentication method of a user. Note that this may |
| |
# also implicitly change the user's password if, for example, the user is |
| |
# joining an existing authentication realm. Known authentication realms at |
| |
# this time are: |
| |
# internal - Purely internal password file (only loncapa knows this user) |
| |
# local - Institutionally written authentication module. |
| |
# unix - Unix user (/etc/passwd with or without /etc/shadow). |
| |
# kerb4 - kerberos version 4 |
| |
# kerb5 - kerberos version 5 |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub change_authentication_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; # Reconstruct user input. |
| |
|
| |
my ($udom,$uname,$umode,$npass)=split(/:/,$tail); |
| |
&Debug("cmd = ".$cmd." domain= ".$udom."uname =".$uname." umode= ".$umode); |
| |
if ($udom ne $currentdomainid) { |
| |
&Failure( $client, "not_right_domain\n", $client); |
| |
} else { |
| |
|
| |
chomp($npass); |
| |
|
| |
$npass=&unescape($npass); |
| |
my $passfilename = &password_path($udom, $uname); |
| |
if ($passfilename) { # Not allowed to create a new user!! |
| |
my $result=&make_passwd_file($uname, $umode,$npass,$passfilename); |
| |
&Reply($client, $result, $userinput); |
| |
} else { |
| |
&Failure($client, "non_authorized", $userinput); # Fail the user now. |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("changeuserauth", \&change_authentication_handler, 1,1, 0); |
| |
|
| |
# |
| |
# Determines if this is the home server for a user. The home server |
| |
# for a user will have his/her lon-capa passwd file. Therefore all we need |
| |
# to do is determine if this file exists. |
| |
# |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub is_home_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my ($udom,$uname)=split(/:/,$tail); |
| |
chomp($uname); |
| |
my $passfile = &password_filename($udom, $uname); |
| |
if($passfile) { |
| |
&Reply( $client, "found\n", $userinput); |
| |
} else { |
| |
&Failure($client, "not_found\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("home", \&is_home_handler, 0,1,0); |
| |
|
| |
# |
| |
# Process an update request for a resource?? I think what's going on here is |
| |
# that a resource has been modified that we hold a subscription to. |
| |
# If the resource is not local, then we must update, or at least invalidate our |
| |
# cached copy of the resource. |
| |
# FUTURE WORK: |
| |
# I need to look at this logic carefully. My druthers would be to follow |
| |
# typical caching logic, and simple invalidate the cache, drop any subscription |
| |
# an let the next fetch start the ball rolling again... however that may |
| |
# actually be more difficult than it looks given the complex web of |
| |
# proxy servers. |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# Implicit inputs: |
| |
# The authentication systems describe above have their own forms of implicit |
| |
# input into the authentication process that are described above. |
| |
# |
| |
sub update_resource_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
|
| |
my $fname= $tail; # This allows interactive testing |
| |
|
| |
|
| |
my $ownership=ishome($fname); |
| |
if ($ownership eq 'not_owner') { |
| |
if (-e $fname) { |
| |
my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, |
| |
$atime,$mtime,$ctime,$blksize,$blocks)=stat($fname); |
| |
my $now=time; |
| |
my $since=$now-$atime; |
| |
if ($since>$perlvar{'lonExpire'}) { |
| |
my $reply=&reply("unsub:$fname","$clientname"); |
| |
unlink("$fname"); |
| |
} else { |
| |
my $transname="$fname.in.transfer"; |
| |
my $remoteurl=&reply("sub:$fname","$clientname"); |
| |
my $response; |
| |
alarm(120); |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
$response=$ua->request($request,$transname); |
| |
} |
| |
alarm(0); |
| |
if ($response->is_error()) { |
| |
unlink($transname); |
| |
my $message=$response->status_line; |
| |
&logthis("LWP GET: $message for $fname ($remoteurl)"); |
| |
} else { |
| |
if ($remoteurl!~/\.meta$/) { |
| |
alarm(120); |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); |
| |
my $mresponse=$ua->request($mrequest,$fname.'.meta'); |
| |
if ($mresponse->is_error()) { |
| |
unlink($fname.'.meta'); |
| |
} |
| |
} |
| |
alarm(0); |
| |
} |
| |
rename($transname,$fname); |
| |
} |
| |
} |
| |
&Reply( $client, "ok\n", $userinput); |
| |
} else { |
| |
&Failure($client, "not_found\n", $userinput); |
| |
} |
| |
} else { |
| |
&Failure($client, "rejected\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("update", \&update_resource_handler, 0 ,1, 0); |
| |
|
| |
# |
| |
# Fetch a user file from a remote server to the user's home directory |
| |
# userfiles subdir. |
| |
# Parameters: |
| |
# $cmd - The command that got us here. |
| |
# $tail - Tail of the command (remaining parameters). |
| |
# $client - File descriptor connected to client. |
| |
# Returns |
| |
# 0 - Requested to exit, caller should shut down. |
| |
# 1 - Continue processing. |
| |
# |
| |
sub fetch_user_file_handler { |
| |
|
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my $userinput = "$cmd:$tail"; |
| |
my $fname = $tail; |
| |
my ($udom,$uname,$ufile)=split(/\//,$fname); |
| |
my $udir=&propath($udom,$uname).'/userfiles'; |
| |
unless (-e $udir) { |
| |
mkdir($udir,0770); |
| |
} |
| |
if (-e $udir) { |
| |
$ufile=~s/^[\.\~]+//; |
| |
$ufile=~s/\///g; |
| |
my $destname=$udir.'/'.$ufile; |
| |
my $transname=$udir.'/'.$ufile.'.in.transit'; |
| |
my $remoteurl='http://'.$clientip.'/userfiles/'.$fname; |
| |
my $response; |
| |
alarm(120); |
| |
{ |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
$response=$ua->request($request,$transname); |
| |
} |
| |
alarm(0); |
| |
if ($response->is_error()) { |
| |
unlink($transname); |
| |
my $message=$response->status_line; |
| |
&logthis("LWP GET: $message for $fname ($remoteurl)"); |
| |
&Failure($client, "failed\n", $userinput); |
| |
} else { |
| |
if (!rename($transname,$destname)) { |
| |
&logthis("Unable to move $transname to $destname"); |
| |
unlink($transname); |
| |
&Failure($client, "failed\n", $userinput); |
| |
} else { |
| |
&Reply($client, "ok\n", $userinput); |
| |
} |
| |
} |
| |
} else { |
| |
&Failure($client, "not_home\n", $userinput); |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("fetchuserfile", \&fetch_user_file_handler, 0, 1, 0); |
| |
|
| |
# |
| |
# Remove a file from a user's home directory userfiles subdirectory. |
| |
# Parameters: |
| |
# cmd - the Lond request keyword that got us here. |
| |
# tail - the part of the command past the keyword. |
| |
# client- File descriptor connected with the client. |
| |
# |
| |
# Returns: |
| |
# 1 - Continue processing. |
| |
|
| |
sub remove_user_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($fname) = split(/:/, $tail); # Get rid of any tailing :'s lonc may have sent. |
| |
|
| |
my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|); |
| |
if ($ufile =~m|/\.\./|) { |
| |
# any files paths with /../ in them refuse |
| |
# to deal with |
| |
&Failure($client, "refused\n", "$cmd:$tail"); |
| |
} else { |
| |
my $udir = &propath($udom,$uname); |
| |
if (-e $udir) { |
| |
my $file=$udir.'/userfiles/'.$ufile; |
| |
if (-e $file) { |
| |
unlink($file); |
| |
if (-e $file) { |
| |
&Failure($client, "failed\n", "$cmd:$tail"); |
| |
} else { |
| |
&Reply($client, "ok\n", "$cmd:$tail"); |
| |
} |
| |
} else { |
| |
&Failure($client, "not_found\n", "$cmd:$tail"); |
| |
} |
| |
} else { |
| |
&Failure($client, "not_home\n", "$cmd:$tail"); |
| |
} |
| |
} |
| |
return 1; |
| |
} |
| |
®ister_handler("removeuserfile", \&remove_user_file_handler, 0,1,0); |
| |
|
| |
|
| |
# |
| |
# Authenticate access to a user file by checking the user's |
| |
# session token(?) |
| |
# |
| |
# Parameters: |
| |
# cmd - The request keyword that dispatched to tus. |
| |
# tail - The tail of the request (colon separated parameters). |
| |
# client - Filehandle open on the client. |
| |
# Return: |
| |
# 1. |
| |
|
| |
sub token_auth_user_file_handler { |
| |
my ($cmd, $tail, $client) = @_; |
| |
|
| |
my ($fname, $session) = split(/:/, $tail); |
| |
|
| |
chomp($session); |
| |
my $reply='non_auth'; |
| |
if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'. |
| |
$session.'.id')) { |
| |
while (my $line=<ENVIN>) { |
| |
if ($line=~ m|userfile\.\Q$fname\E\=|) { $reply='ok'; } |
| |
} |
| |
close(ENVIN); |
| |
&Reply($client, $reply); |
| |
} else { |
| |
&Failure($client, "invalid_token\n", "$cmd:$tail"); |
| |
} |
| |
return 1; |
| |
|
| |
} |
| |
|
| |
®ister_handler("tokenauthuserfile", \&token_auth_user_file_handler, 0,1,0); |
| |
#--------------------------------------------------------------- |
| |
# |
| |
# Getting, decoding and dispatching requests: |
| |
# |
| |
|
| |
# |
| |
# Get a Request: |
| |
# Gets a Request message from the client. The transaction |
| |
# is defined as a 'line' of text. We remove the new line |
| |
# from the text line. |
| |
# |
| |
sub get_request { |
| |
my $input = <$client>; |
| |
chomp($input); |
| |
|
| |
Debug("get_request: Request = $input\n"); |
| |
|
| |
&status('Processing '.$clientname.':'.$input); |
| |
|
| |
return $input; |
| |
} |
| |
#--------------------------------------------------------------- |
| |
# |
| |
# Process a request. This sub should shrink as each action |
| |
# gets farmed out into a separat sub that is registered |
| |
# with the dispatch hash. |
| |
# |
| |
# Parameters: |
| |
# user_input - The request received from the client (lonc). |
| |
# Returns: |
| |
# true to keep processing, false if caller should exit. |
| |
# |
| |
sub process_request { |
| |
my ($userinput) = @_; # Easier for now to break style than to |
| |
# fix all the userinput -> user_input. |
| |
my $wasenc = 0; # True if request was encrypted. |
| |
# ------------------------------------------------------------ See if encrypted |
| |
if ($userinput =~ /^enc/) { |
| |
$userinput = decipher($userinput); |
| |
$wasenc=1; |
| |
if(!$userinput) { # Cipher not defined. |
| |
&Failure($client, "error: Encrypted data without negotated key"); |
| |
return 0; |
| |
} |
| |
} |
| |
Debug("process_request: $userinput\n"); |
| |
|
| |
# |
| |
# The 'correct way' to add a command to lond is now to |
| |
# write a sub to execute it and Add it to the command dispatch |
| |
# hash via a call to register_handler.. The comments to that |
| |
# sub should give you enough to go on to show how to do this |
| |
# along with the examples that are building up as this code |
| |
# is getting refactored. Until all branches of the |
| |
# if/elseif monster below have been factored out into |
| |
# separate procesor subs, if the dispatch hash is missing |
| |
# the command keyword, we will fall through to the remainder |
| |
# of the if/else chain below in order to keep this thing in |
| |
# working order throughout the transmogrification. |
| |
|
| |
my ($command, $tail) = split(/:/, $userinput, 2); |
| |
chomp($command); |
| |
chomp($tail); |
| |
$tail =~ s/(\r)//; # This helps people debugging with e.g. telnet. |
| |
$command =~ s/(\r)//; # And this too for parameterless commands. |
| |
if(!$tail) { |
| |
$tail =""; # defined but blank. |
| |
} |
| |
|
| |
&Debug("Command received: $command, encoded = $wasenc"); |
| |
|
| |
if(defined $Dispatcher{$command}) { |
| |
|
| |
my $dispatch_info = $Dispatcher{$command}; |
| |
my $handler = $$dispatch_info[0]; |
| |
my $need_encode = $$dispatch_info[1]; |
| |
my $client_types = $$dispatch_info[2]; |
| |
Debug("Matched dispatch hash: mustencode: $need_encode " |
| |
."ClientType $client_types"); |
| |
|
| |
# Validate the request: |
| |
|
| |
my $ok = 1; |
| |
my $requesterprivs = 0; |
| |
if(&isClient()) { |
| |
$requesterprivs |= $CLIENT_OK; |
| |
} |
| |
if(&isManager()) { |
| |
$requesterprivs |= $MANAGER_OK; |
| |
} |
| |
if($need_encode && (!$wasenc)) { |
| |
Debug("Must encode but wasn't: $need_encode $wasenc"); |
| |
$ok = 0; |
| |
} |
| |
if(($client_types & $requesterprivs) == 0) { |
| |
Debug("Client not privileged to do this operation"); |
| |
$ok = 0; |
| |
} |
| |
|
| |
if($ok) { |
| |
Debug("Dispatching to handler $command $tail"); |
| |
my $keep_going = &$handler($command, $tail, $client); |
| |
return $keep_going; |
| |
} else { |
| |
Debug("Refusing to dispatch because client did not match requirements"); |
| |
Failure($client, "refused\n", $userinput); |
| |
return 1; |
| |
} |
| |
|
| |
} |
| |
|
| |
#------------------- Commands not yet in spearate handlers. -------------- |
| |
|
| |
|
| |
|
| |
# ----------------------------------------------------------------- unsubscribe |
| |
if ($userinput =~ /^unsub/) { |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
if (-e $fname) { |
| |
print $client &unsub($fname,$clientip); |
| |
} else { |
| |
print $client "not_found\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------- subscribe |
| |
} elsif ($userinput =~ /^sub/) { |
| |
if(isClient) { |
| |
print $client &subscribe($userinput,$clientip); |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------- current version |
| |
} elsif ($userinput =~ /^currentversion/) { |
| |
if(isClient) { |
| |
my ($cmd,$fname)=split(/:/,$userinput); |
| |
print $client ¤tversion($fname)."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- log |
| |
} elsif ($userinput =~ /^log/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/activity.log")) { |
| |
print $hfh "$now:$clientname:$what\n"; |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." IO::File->new Failed " |
| |
."while attempting log\n"; |
| |
} |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- put |
| |
} elsif ($userinput =~ /^put/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$what) |
| |
=split(/:/,$userinput,5); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
if ($namespace ne 'roles') { |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
"$proname/$namespace.db", |
| |
&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; } |
| |
} |
| |
|
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hash{$key}=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) failed ". |
| |
"while attempting put\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting put\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------- inc |
| |
} elsif ($userinput =~ /^inc:/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$what) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
if ($namespace ne 'roles') { |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
"$proname/$namespace.db", |
| |
&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; } |
| |
} |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
# We could check that we have a number... |
| |
if (! defined($value) || $value eq '') { |
| |
$value = 1; |
| |
} |
| |
$hash{$key}+=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) failed ". |
| |
"while attempting inc\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting inc\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- rolesput |
| |
} elsif ($userinput =~ /^rolesput/) { |
| |
if(isClient) { |
| |
&Debug("rolesput"); |
| |
if ($wasenc==1) { |
| |
my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
| |
=split(/:/,$userinput); |
| |
&Debug("cmd = ".$cmd." exedom= ".$exedom. |
| |
"user = ".$exeuser." udom=".$udom. |
| |
"what = ".$what); |
| |
my $namespace='roles'; |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
| |
print $hfh "P:$now:$exedom:$exeuser:$what\n"; |
| |
} |
| |
} |
| |
|
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
&ManagePermissions($key, $udom, $uname, |
| |
&get_auth_type( $udom, |
| |
$uname)); |
| |
$hash{$key}=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting rolesput\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting rolesput\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- rolesdel |
| |
} elsif ($userinput =~ /^rolesdel/) { |
| |
if(isClient) { |
| |
&Debug("rolesdel"); |
| |
if ($wasenc==1) { |
| |
my ($cmd,$exedom,$exeuser,$udom,$uname,$what) |
| |
=split(/:/,$userinput); |
| |
&Debug("cmd = ".$cmd." exedom= ".$exedom. |
| |
"user = ".$exeuser." udom=".$udom. |
| |
"what = ".$what); |
| |
my $namespace='roles'; |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @rolekeys=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
| |
print $hfh "D:$now:$exedom:$exeuser:$what\n"; |
| |
} |
| |
} |
| |
foreach my $key (@rolekeys) { |
| |
delete $hash{$key}; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting rolesdel\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting rolesdel\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- get |
| |
} elsif ($userinput =~ /^get/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$what) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
chomp($what); |
| |
my @queries=split(/\&/,$what); |
| |
my $proname=propath($udom,$uname); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hash{$queries[$i]}&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting get\n"; |
| |
} |
| |
} else { |
| |
if ($!+0 == 2) { |
| |
print $client "error:No such file or ". |
| |
"GDBM reported bad block error\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting get\n"; |
| |
} |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------ eget |
| |
} elsif ($userinput =~ /^eget/) { |
| |
if (isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$what) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
chomp($what); |
| |
my @queries=split(/\&/,$what); |
| |
my $proname=propath($udom,$uname); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hash{$queries[$i]}&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
if ($cipher) { |
| |
my $cmdlength=length($qresult); |
| |
$qresult.=" "; |
| |
my $encqresult=''; |
| |
for |
| |
(my $encidx=0;$encidx<=$cmdlength;$encidx+=8) { |
| |
$encqresult.= |
| |
unpack("H16", |
| |
$cipher->encrypt(substr($qresult,$encidx,8))); |
| |
} |
| |
print $client "enc:$cmdlength:$encqresult\n"; |
| |
} else { |
| |
print $client "error:no_key\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting eget\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting eget\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------- del |
| |
} elsif ($userinput =~ /^del/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$what) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @keys=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "D:$now:$what\n"; } |
| |
} |
| |
foreach my $key (@keys) { |
| |
delete($hash{$key}); |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting del\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting del\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------------ keys |
| |
} elsif ($userinput =~ /^keys/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
my $proname=propath($udom,$uname); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
foreach my $key (keys %hash) { |
| |
$qresult.="$key&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting keys\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting keys\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- dumpcurrent |
| |
} elsif ($userinput =~ /^currentdump/) { |
| |
if (isClient) { |
| |
my ($cmd,$udom,$uname,$namespace) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
my $qresult=''; |
| |
my $proname=propath($udom,$uname); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
"$proname/$namespace.db", |
| |
&GDBM_READER(),0640)) { |
| |
# Structure of %data: |
| |
# $data{$symb}->{$parameter}=$value; |
| |
# $data{$symb}->{'v.'.$parameter}=$version; |
| |
# since $parameter will be unescaped, we do not |
| |
# have to worry about silly parameter names... |
| |
my %data = (); |
| |
while (my ($key,$value) = each(%hash)) { |
| |
my ($v,$symb,$param) = split(/:/,$key); |
| |
next if ($v eq 'version' || $symb eq 'keys'); |
| |
next if (exists($data{$symb}) && |
| |
exists($data{$symb}->{$param}) && |
| |
$data{$symb}->{'v.'.$param} > $v); |
| |
$data{$symb}->{$param}=$value; |
| |
$data{$symb}->{'v.'.$param}=$v; |
| |
} |
| |
if (untie(%hash)) { |
| |
while (my ($symb,$param_hash) = each(%data)) { |
| |
while(my ($param,$value) = each (%$param_hash)){ |
| |
next if ($param =~ /^v\./); |
| |
$qresult.=$symb.':'.$param.'='.$value.'&'; |
| |
} |
| |
} |
| |
chop($qresult); |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting currentdump\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting currentdump\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
} |
| |
# ------------------------------------------------------------------------ dump |
| |
} elsif ($userinput =~ /^dump/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$regexp) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
if (defined($regexp)) { |
| |
$regexp=&unescape($regexp); |
| |
} else { |
| |
$regexp='.'; |
| |
} |
| |
my $qresult=''; |
| |
my $proname=propath($udom,$uname); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
while (my ($key,$value) = each(%hash)) { |
| |
if ($regexp eq '.') { |
| |
$qresult.=$key.'='.$value.'&'; |
| |
} else { |
| |
my $unescapeKey = &unescape($key); |
| |
if (eval('$unescapeKey=~/$regexp/')) { |
| |
$qresult.="$key=$value&"; |
| |
} |
| |
} |
| |
} |
| |
if (untie(%hash)) { |
| |
chop($qresult); |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting dump\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting dump\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------------- store |
| |
} elsif ($userinput =~ /^store/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$rid,$what) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
if ($namespace ne 'roles') { |
| |
chomp($what); |
| |
my $proname=propath($udom,$uname); |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) { |
| |
unless ($namespace=~/^nohist\_/) { |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { |
| |
print $hfh "P:$now:$rid:$what\n"; |
| |
} |
| |
} |
| |
my @previouskeys=split(/&/,$hash{"keys:$rid"}); |
| |
my $key; |
| |
$hash{"version:$rid"}++; |
| |
my $version=$hash{"version:$rid"}; |
| |
my $allkeys=''; |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$allkeys.=$key.':'; |
| |
$hash{"$version:$rid:$key"}=$value; |
| |
} |
| |
$hash{"$version:$rid:timestamp"}=$now; |
| |
$allkeys.='timestamp'; |
| |
$hash{"$version:keys:$rid"}=$allkeys; |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting store\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting store\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# --------------------------------------------------------------------- restore |
| |
} elsif ($userinput =~ /^restore/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$uname,$namespace,$rid) |
| |
=split(/:/,$userinput); |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
chomp($rid); |
| |
my $proname=propath($udom,$uname); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) { |
| |
my $version=$hash{"version:$rid"}; |
| |
$qresult.="version=$version&"; |
| |
my $scope; |
| |
for ($scope=1;$scope<=$version;$scope++) { |
| |
my $vkeys=$hash{"$scope:keys:$rid"}; |
| |
my @keys=split(/:/,$vkeys); |
| |
my $key; |
| |
$qresult.="$scope:keys=$vkeys&"; |
| |
foreach $key (@keys) { |
| |
$qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&"; |
| |
} |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting restore\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting restore\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- chatsend |
| |
} elsif ($userinput =~ /^chatsend/) { |
| |
if(isClient) { |
| |
my ($cmd,$cdom,$cnum,$newpost)=split(/\:/,$userinput); |
| |
&chatadd($cdom,$cnum,$newpost); |
| |
print $client "ok\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# -------------------------------------------------------------------- chatretr |
| |
} elsif ($userinput =~ /^chatretr/) { |
| |
if(isClient) { |
| |
my |
| |
($cmd,$cdom,$cnum,$udom,$uname)=split(/\:/,$userinput); |
| |
my $reply=''; |
| |
foreach (&getchat($cdom,$cnum,$udom,$uname)) { |
| |
$reply.=&escape($_).':'; |
| |
} |
| |
$reply=~s/\:$//; |
| |
print $client $reply."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------- querysend |
| |
} elsif ($userinput =~ /^querysend/) { |
| |
if (isClient) { |
| |
my ($cmd,$query, |
| |
$arg1,$arg2,$arg3)=split(/\:/,$userinput); |
| |
$query=~s/\n*$//g; |
| |
print $client "". |
| |
sqlreply("$clientname\&$query". |
| |
"\&$arg1"."\&$arg2"."\&$arg3")."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------ queryreply |
| |
} elsif ($userinput =~ /^queryreply/) { |
| |
if(isClient) { |
| |
my ($cmd,$id,$reply)=split(/:/,$userinput); |
| |
my $store; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if ($store=IO::File->new(">$execdir/tmp/$id")) { |
| |
$reply=~s/\&/\n/g; |
| |
print $store $reply; |
| |
close $store; |
| |
my $store2=IO::File->new(">$execdir/tmp/$id.end"); |
| |
print $store2 "done\n"; |
| |
close $store2; |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." IO::File->new Failed ". |
| |
"while attempting queryreply\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- courseidput |
| |
} elsif ($userinput =~ /^courseidput/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
$udom=~s/\W//g; |
| |
my $proname= |
| |
"$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$descr,$inst_code)=split(/=/,$pair); |
| |
$hash{$key}=$descr.':'.$inst_code.':'.$now; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting courseidput\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting courseidput\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------- courseiddump |
| |
} elsif ($userinput =~ /^courseiddump/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$since,$description) |
| |
=split(/:/,$userinput); |
| |
if (defined($description)) { |
| |
$description=&unescape($description); |
| |
} else { |
| |
$description='.'; |
| |
} |
| |
unless (defined($since)) { $since=0; } |
| |
my $qresult=''; |
| |
my $proname= |
| |
"$perlvar{'lonUsersDir'}/$udom/nohist_courseids"; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
| |
while (my ($key,$value) = each(%hash)) { |
| |
my ($descr,$lasttime,$inst_code); |
| |
if ($value =~ m/^([^\:]*):([^\:]*):(\d+)$/) { |
| |
($descr,$inst_code,$lasttime)=($1,$2,$3); |
| |
} else { |
| |
($descr,$lasttime) = split(/\:/,$value); |
| |
} |
| |
if ($lasttime<$since) { next; } |
| |
if ($description eq '.') { |
| |
$qresult.=$key.'='.$descr.':'.$inst_code.'&'; |
| |
} else { |
| |
my $unescapeVal = &unescape($descr); |
| |
if (eval('$unescapeVal=~/\Q$description\E/i')) { |
| |
$qresult.=$key.'='.$descr.':'.$inst_code.'&'; |
| |
} |
| |
} |
| |
} |
| |
if (untie(%hash)) { |
| |
chop($qresult); |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting courseiddump\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting courseiddump\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------------- idput |
| |
} elsif ($userinput =~ /^idput/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
$udom=~s/\W//g; |
| |
my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
| |
my $now=time; |
| |
my @pairs=split(/\&/,$what); |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) { |
| |
{ |
| |
my $hfh; |
| |
if ($hfh=IO::File->new(">>$proname.hist")) { |
| |
print $hfh "P:$now:$what\n"; |
| |
} |
| |
} |
| |
foreach my $pair (@pairs) { |
| |
my ($key,$value)=split(/=/,$pair); |
| |
$hash{$key}=$value; |
| |
} |
| |
if (untie(%hash)) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting idput\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting idput\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------------- idget |
| |
} elsif ($userinput =~ /^idget/) { |
| |
if(isClient) { |
| |
my ($cmd,$udom,$what)=split(/:/,$userinput); |
| |
chomp($what); |
| |
$udom=~s/\W//g; |
| |
my $proname="$perlvar{'lonUsersDir'}/$udom/ids"; |
| |
my @queries=split(/\&/,$what); |
| |
my $qresult=''; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) { |
| |
for (my $i=0;$i<=$#queries;$i++) { |
| |
$qresult.="$hash{$queries[$i]}&"; |
| |
} |
| |
if (untie(%hash)) { |
| |
$qresult=~s/\&$//; |
| |
print $client "$qresult\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." untie(GDBM) Failed ". |
| |
"while attempting idget\n"; |
| |
} |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
." tie(GDBM) Failed ". |
| |
"while attempting idget\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------------- tmpput |
| |
} elsif ($userinput =~ /^tmpput/) { |
| |
if(isClient) { |
| |
my ($cmd,$what)=split(/:/,$userinput); |
| |
my $store; |
| |
$tmpsnum++; |
| |
my $id=$$.'_'.$clientip.'_'.$tmpsnum; |
| |
$id=~s/\W/\_/g; |
| |
$what=~s/\n//g; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) { |
| |
print $store $what; |
| |
close $store; |
| |
print $client "$id\n"; |
| |
} |
| |
else { |
| |
print $client "error: ".($!+0) |
| |
."IO::File->new Failed ". |
| |
"while attempting tmpput\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
|
| |
# ---------------------------------------------------------------------- tmpget |
| |
} elsif ($userinput =~ /^tmpget/) { |
| |
if(isClient) { |
| |
my ($cmd,$id)=split(/:/,$userinput); |
| |
chomp($id); |
| |
$id=~s/\W/\_/g; |
| |
my $store; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if ($store=IO::File->new("$execdir/tmp/$id.tmp")) { |
| |
my $reply=<$store>; |
| |
print $client "$reply\n"; |
| |
close $store; |
| |
} |
| |
else { |
| |
print $client "error: ".($!+0) |
| |
."IO::File->new Failed ". |
| |
"while attempting tmpget\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ---------------------------------------------------------------------- tmpdel |
| |
} elsif ($userinput =~ /^tmpdel/) { |
| |
if(isClient) { |
| |
my ($cmd,$id)=split(/:/,$userinput); |
| |
chomp($id); |
| |
$id=~s/\W/\_/g; |
| |
my $execdir=$perlvar{'lonDaemons'}; |
| |
if (unlink("$execdir/tmp/$id.tmp")) { |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0) |
| |
."Unlink tmp Failed ". |
| |
"while attempting tmpdel\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------- portfolio directory list (portls) |
| |
} elsif ($userinput =~ /^portls/) { |
| |
if(isClient) { |
| |
my ($cmd,$uname,$udom)=split(/:/,$userinput); |
| |
my $udir=propath($udom,$uname).'/userfiles/portfolio'; |
| |
my $dirLine=''; |
| |
my $dirContents=''; |
| |
if (opendir(LSDIR,$udir.'/')){ |
| |
while ($dirLine = readdir(LSDIR)){ |
| |
$dirContents = $dirContents.$dirLine.'<br />'; |
| |
} |
| |
} else { |
| |
$dirContents = "No directory found\n"; |
| |
} |
| |
print $client $dirContents."\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
} |
| |
# -------------------------------------------------------------------------- ls |
| |
} elsif ($userinput =~ /^ls/) { |
| |
if(isClient) { |
| |
my $obs; |
| |
my $rights; |
| |
my ($cmd,$ulsdir)=split(/:/,$userinput); |
| |
my $ulsout=''; |
| |
my $ulsfn; |
| |
if (-e $ulsdir) { |
| |
if(-d $ulsdir) { |
| |
if (opendir(LSDIR,$ulsdir)) { |
| |
while ($ulsfn=readdir(LSDIR)) { |
| |
undef $obs, $rights; |
| |
my @ulsstats=stat($ulsdir.'/'.$ulsfn); |
| |
#We do some obsolete checking here |
| |
if(-e $ulsdir.'/'.$ulsfn.".meta") { |
| |
open(FILE, $ulsdir.'/'.$ulsfn.".meta"); |
| |
my @obsolete=<FILE>; |
| |
foreach my $obsolete (@obsolete) { |
| |
if($obsolete =~ m|(<obsolete>)(on)|) { $obs = 1; } |
| |
if($obsolete =~ m|(<copyright>)(default)|) { $rights = 1; } |
| |
} |
| |
} |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats); |
| |
if($obs eq '1') { $ulsout.="&1"; } |
| |
else { $ulsout.="&0"; } |
| |
if($rights eq '1') { $ulsout.="&1:"; } |
| |
else { $ulsout.="&0:"; } |
| |
} |
| |
closedir(LSDIR); |
| |
} |
| |
} else { |
| |
my @ulsstats=stat($ulsdir); |
| |
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':'; |
| |
} |
| |
} else { |
| |
$ulsout='no_such_dir'; |
| |
} |
| |
if ($ulsout eq '') { $ulsout='empty'; } |
| |
print $client "$ulsout\n"; |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ----------------------------------------------------------------- setannounce |
| |
} elsif ($userinput =~ /^setannounce/) { |
| |
if (isClient) { |
| |
my ($cmd,$announcement)=split(/:/,$userinput); |
| |
chomp($announcement); |
| |
$announcement=&unescape($announcement); |
| |
if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}. |
| |
'/announcement.txt')) { |
| |
print $store $announcement; |
| |
close $store; |
| |
print $client "ok\n"; |
| |
} else { |
| |
print $client "error: ".($!+0)."\n"; |
| |
} |
| |
} else { |
| |
Reply($client, "refused\n", $userinput); |
| |
|
| |
} |
| |
# ------------------------------------------------------------------ Hanging up |
| |
} elsif (($userinput =~ /^exit/) || |
| |
($userinput =~ /^init/)) { # no restrictions. |
| |
&logthis( |
| |
"Client $clientip ($clientname) hanging up: $userinput"); |
| |
print $client "bye\n"; |
| |
$client->shutdown(2); # shutdown the socket forcibly. |
| |
$client->close(); |
| |
return 0; |
| |
|
| |
# ---------------------------------- set current host/domain |
| |
} elsif ($userinput =~ /^sethost:/) { |
| |
if (isClient) { |
| |
print $client &sethost($userinput)."\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#---------------------------------- request file (?) version. |
| |
} elsif ($userinput =~/^version:/) { |
| |
if (isClient) { |
| |
print $client &version($userinput)."\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#------------------------------- is auto-enrollment enabled? |
| |
} elsif ($userinput =~/^autorun:/) { |
| |
if (isClient) { |
| |
my ($cmd,$cdom) = split(/:/,$userinput); |
| |
my $outcome = &localenroll::run($cdom); |
| |
print $client "$outcome\n"; |
| |
} else { |
| |
print $client "0\n"; |
| |
} |
| |
#------------------------------- get official sections (for auto-enrollment). |
| |
} elsif ($userinput =~/^autogetsections:/) { |
| |
if (isClient) { |
| |
my ($cmd,$coursecode,$cdom)=split(/:/,$userinput); |
| |
my @secs = &localenroll::get_sections($coursecode,$cdom); |
| |
my $seclist = &escape(join(':',@secs)); |
| |
print $client "$seclist\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#----------------------- validate owner of new course section (for auto-enrollment). |
| |
} elsif ($userinput =~/^autonewcourse:/) { |
| |
if (isClient) { |
| |
my ($cmd,$inst_course_id,$owner,$cdom)=split(/:/,$userinput); |
| |
my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom); |
| |
print $client "$outcome\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#-------------- validate course section in schedule of classes (for auto-enrollment). |
| |
} elsif ($userinput =~/^autovalidatecourse:/) { |
| |
if (isClient) { |
| |
my ($cmd,$inst_course_id,$cdom)=split(/:/,$userinput); |
| |
my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom); |
| |
print $client "$outcome\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#--------------------------- create password for new user (for auto-enrollment). |
| |
} elsif ($userinput =~/^autocreatepassword:/) { |
| |
if (isClient) { |
| |
my ($cmd,$authparam,$cdom)=split(/:/,$userinput); |
| |
my ($create_passwd,$authchk); |
| |
($authparam,$create_passwd,$authchk) = &localenroll::create_password($authparam,$cdom); |
| |
print $client &escape($authparam.':'.$create_passwd.':'.$authchk)."\n"; |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#--------------------------- read and remove temporary files (for auto-enrollment). |
| |
} elsif ($userinput =~/^autoretrieve:/) { |
| |
if (isClient) { |
| |
my ($cmd,$filename) = split(/:/,$userinput); |
| |
my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename; |
| |
if ( (-e $source) && ($filename ne '') ) { |
| |
my $reply = ''; |
| |
if (open(my $fh,$source)) { |
| |
while (<$fh>) { |
| |
chomp($_); |
| |
$_ =~ s/^\s+//g; |
| |
$_ =~ s/\s+$//g; |
| |
$reply .= $_; |
| |
} |
| |
close($fh); |
| |
print $client &escape($reply)."\n"; |
| |
# unlink($source); |
| |
} else { |
| |
print $client "error\n"; |
| |
} |
| |
} else { |
| |
print $client "error\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
#--------------------- read and retrieve institutional code format (for support form). |
| |
} elsif ($userinput =~/^autoinstcodeformat:/) { |
| |
if (isClient) { |
| |
my $reply; |
| |
my($cmd,$cdom,$course) = split(/:/,$userinput); |
| |
my @pairs = split/\&/,$course; |
| |
my %instcodes = (); |
| |
my %codes = (); |
| |
my @codetitles = (); |
| |
my %cat_titles = (); |
| |
my %cat_order = (); |
| |
foreach (@pairs) { |
| |
my ($key,$value) = split/=/,$_; |
| |
$instcodes{&unescape($key)} = &unescape($value); |
| |
} |
| |
my $formatreply = &localenroll::instcode_format($cdom,\%instcodes,\%codes,\@codetitles,\%cat_titles,\%cat_order); |
| |
if ($formatreply eq 'ok') { |
| |
my $codes_str = &hash2str(%codes); |
| |
my $codetitles_str = &array2str(@codetitles); |
| |
my $cat_titles_str = &hash2str(%cat_titles); |
| |
my $cat_order_str = &hash2str(%cat_order); |
| |
print $client $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':'.$cat_order_str."\n"; |
| |
} |
| |
} else { |
| |
print $client "refused\n"; |
| |
} |
| |
# ------------------------------------------------------------- unknown command |
| |
|
| |
} else { |
| |
# unknown command |
| |
print $client "unknown_cmd\n"; |
| |
} |
| |
# -------------------------------------------------------------------- complete |
| |
Debug("process_request - returning 1"); |
| |
return 1; |
| |
} |
| |
# |
| |
# Decipher encoded traffic |
| |
# Parameters: |
| |
# input - Encoded data. |
| |
# Returns: |
| |
# Decoded data or undef if encryption key was not yet negotiated. |
| |
# Implicit input: |
| |
# cipher - This global holds the negotiated encryption key. |
| |
# |
| |
sub decipher { |
| |
my ($input) = @_; |
| |
my $output = ''; |
| |
|
| |
|
| |
if($cipher) { |
| |
my($enc, $enclength, $encinput) = split(/:/, $input); |
| |
for(my $encidx = 0; $encidx < length($encinput); $encidx += 16) { |
| |
$output .= |
| |
$cipher->decrypt(pack("H16", substr($encinput, $encidx, 16))); |
| |
} |
| |
return substr($output, 0, $enclength); |
| |
} else { |
| |
return undef; |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Register a command processor. This function is invoked to register a sub |
| |
# to process a request. Once registered, the ProcessRequest sub can automatically |
| |
# dispatch requests to an appropriate sub, and do the top level validity checking |
| |
# as well: |
| |
# - Is the keyword recognized. |
| |
# - Is the proper client type attempting the request. |
| |
# - Is the request encrypted if it has to be. |
| |
# Parameters: |
| |
# $request_name - Name of the request being registered. |
| |
# This is the command request that will match |
| |
# against the hash keywords to lookup the information |
| |
# associated with the dispatch information. |
| |
# $procedure - Reference to a sub to call to process the request. |
| |
# All subs get called as follows: |
| |
# Procedure($cmd, $tail, $replyfd, $key) |
| |
# $cmd - the actual keyword that invoked us. |
| |
# $tail - the tail of the request that invoked us. |
| |
# $replyfd- File descriptor connected to the client |
| |
# $must_encode - True if the request must be encoded to be good. |
| |
# $client_ok - True if it's ok for a client to request this. |
| |
# $manager_ok - True if it's ok for a manager to request this. |
| |
# Side effects: |
| |
# - On success, the Dispatcher hash has an entry added for the key $RequestName |
| |
# - On failure, the program will die as it's a bad internal bug to try to |
| |
# register a duplicate command handler. |
| |
# |
| |
sub register_handler { |
| |
my ($request_name,$procedure,$must_encode, $client_ok,$manager_ok) = @_; |
| |
|
| |
# Don't allow duplication# |
| |
|
| |
if (defined $Dispatcher{$request_name}) { |
| |
die "Attempting to define a duplicate request handler for $request_name\n"; |
| |
} |
| |
# Build the client type mask: |
| |
|
| |
my $client_type_mask = 0; |
| |
if($client_ok) { |
| |
$client_type_mask |= $CLIENT_OK; |
| |
} |
| |
if($manager_ok) { |
| |
$client_type_mask |= $MANAGER_OK; |
| |
} |
| |
|
| |
# Enter the hash: |
| |
|
| |
my @entry = ($procedure, $must_encode, $client_type_mask); |
| |
|
| |
$Dispatcher{$request_name} = \@entry; |
| |
|
| |
} |
| |
|
| |
|
| |
#------------------------------------------------------------------ |
| |
|
| |
|
| |
|
| |
|
| # |
# |
| # Convert an error return code from lcpasswd to a string value. |
# Convert an error return code from lcpasswd to a string value. |
| # |
# |
|
Line 3249 sub catchexception {
|
Line 3166 sub catchexception {
|
| $SIG{'QUIT'}='DEFAULT'; |
$SIG{'QUIT'}='DEFAULT'; |
| $SIG{__DIE__}='DEFAULT'; |
$SIG{__DIE__}='DEFAULT'; |
| &status("Catching exception"); |
&status("Catching exception"); |
| &logthis("<font color=red>CRITICAL: " |
&logthis("<font color='red'>CRITICAL: " |
| ."ABNORMAL EXIT. Child $$ for server $thisserver died through " |
."ABNORMAL EXIT. Child $$ for server $thisserver died through " |
| ."a crash with this error msg->[$error]</font>"); |
."a crash with this error msg->[$error]</font>"); |
| &logthis('Famous last words: '.$status.' - '.$lastlog); |
&logthis('Famous last words: '.$status.' - '.$lastlog); |
|
Line 3257 sub catchexception {
|
Line 3174 sub catchexception {
|
| $server->close(); |
$server->close(); |
| die($error); |
die($error); |
| } |
} |
| |
|
| sub timeout { |
sub timeout { |
| &status("Handling Timeout"); |
&status("Handling Timeout"); |
| &logthis("<font color=ref>CRITICAL: TIME OUT ".$$."</font>"); |
&logthis("<font color='red'>CRITICAL: TIME OUT ".$$."</font>"); |
| &catchexception('Timeout'); |
&catchexception('Timeout'); |
| } |
} |
| # -------------------------------- Set signal handlers to record abnormal exits |
# -------------------------------- Set signal handlers to record abnormal exits |
| |
|
| |
|
| $SIG{'QUIT'}=\&catchexception; |
$SIG{'QUIT'}=\&catchexception; |
| $SIG{__DIE__}=\&catchexception; |
$SIG{__DIE__}=\&catchexception; |
| |
|
|
Line 3312 $server = IO::Socket::INET->new(LocalPor
|
Line 3229 $server = IO::Socket::INET->new(LocalPor
|
| # global variables |
# global variables |
| |
|
| my %children = (); # keys are current child process IDs |
my %children = (); # keys are current child process IDs |
| my $children = 0; # current number of children |
|
| |
|
| sub REAPER { # takes care of dead children |
sub REAPER { # takes care of dead children |
| $SIG{CHLD} = \&REAPER; |
$SIG{CHLD} = \&REAPER; |
| &status("Handling child death"); |
&status("Handling child death"); |
| my $pid = wait; |
my $pid; |
| if (defined($children{$pid})) { |
do { |
| &logthis("Child $pid died"); |
$pid = waitpid(-1,&WNOHANG()); |
| $children --; |
if (defined($children{$pid})) { |
| delete $children{$pid}; |
&logthis("Child $pid died"); |
| } else { |
delete($children{$pid}); |
| &logthis("Unknown Child $pid died"); |
} elsif ($pid > 0) { |
| |
&logthis("Unknown Child $pid died"); |
| |
} |
| |
} while ( $pid > 0 ); |
| |
foreach my $child (keys(%children)) { |
| |
$pid = waitpid($child,&WNOHANG()); |
| |
if ($pid > 0) { |
| |
&logthis("Child $child - $pid looks like we missed it's death"); |
| |
delete($children{$pid}); |
| |
} |
| } |
} |
| &status("Finished Handling child death"); |
&status("Finished Handling child death"); |
| } |
} |
|
Line 3335 sub HUNTSMAN { # si
|
Line 3260 sub HUNTSMAN { # si
|
| &logthis("Free socket: ".shutdown($server,2)); # free up socket |
&logthis("Free socket: ".shutdown($server,2)); # free up socket |
| my $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
| unlink("$execdir/logs/lond.pid"); |
unlink("$execdir/logs/lond.pid"); |
| &logthis("<font color=red>CRITICAL: Shutting down</font>"); |
&logthis("<font color='red'>CRITICAL: Shutting down</font>"); |
| &status("Done killing children"); |
&status("Done killing children"); |
| exit; # clean up with dignity |
exit; # clean up with dignity |
| } |
} |
|
Line 3345 sub HUPSMAN { # sig
|
Line 3270 sub HUPSMAN { # sig
|
| &status("Killing children for restart (HUP)"); |
&status("Killing children for restart (HUP)"); |
| kill 'INT' => keys %children; |
kill 'INT' => keys %children; |
| &logthis("Free socket: ".shutdown($server,2)); # free up socket |
&logthis("Free socket: ".shutdown($server,2)); # free up socket |
| &logthis("<font color=red>CRITICAL: Restarting</font>"); |
&logthis("<font color='red'>CRITICAL: Restarting</font>"); |
| my $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
| unlink("$execdir/logs/lond.pid"); |
unlink("$execdir/logs/lond.pid"); |
| &status("Restarting self (HUP)"); |
&status("Restarting self (HUP)"); |
|
Line 3355 sub HUPSMAN { # sig
|
Line 3280 sub HUPSMAN { # sig
|
| # |
# |
| # Kill off hashes that describe the host table prior to re-reading it. |
# Kill off hashes that describe the host table prior to re-reading it. |
| # Hashes affected are: |
# Hashes affected are: |
| # %hostid, %hostdom %hostip |
# %hostid, %hostdom %hostip %hostdns. |
| # |
# |
| sub KillHostHashes { |
sub KillHostHashes { |
| foreach my $key (keys %hostid) { |
foreach my $key (keys %hostid) { |
|
Line 3367 sub KillHostHashes {
|
Line 3292 sub KillHostHashes {
|
| foreach my $key (keys %hostip) { |
foreach my $key (keys %hostip) { |
| delete $hostip{$key}; |
delete $hostip{$key}; |
| } |
} |
| |
foreach my $key (keys %hostdns) { |
| |
delete $hostdns{$key}; |
| |
} |
| } |
} |
| # |
# |
| # Read in the host table from file and distribute it into the various hashes: |
# Read in the host table from file and distribute it into the various hashes: |
|
Line 3377 sub KillHostHashes {
|
Line 3305 sub KillHostHashes {
|
| sub ReadHostTable { |
sub ReadHostTable { |
| |
|
| open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file"; |
open (CONFIG,"$perlvar{'lonTabDir'}/hosts.tab") || die "Can't read host file"; |
| |
my $myloncapaname = $perlvar{'lonHostID'}; |
| |
Debug("My loncapa name is : $myloncapaname"); |
| while (my $configline=<CONFIG>) { |
while (my $configline=<CONFIG>) { |
| my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
if (!($configline =~ /^\s*\#/)) { |
| chomp($ip); $ip=~s/\D+$//; |
my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
| $hostid{$ip}=$id; |
chomp($ip); $ip=~s/\D+$//; |
| $hostdom{$id}=$domain; |
$hostid{$ip}=$id; # LonCAPA name of host by IP. |
| $hostip{$id}=$ip; |
$hostdom{$id}=$domain; # LonCAPA domain name of host. |
| if ($id eq $perlvar{'lonHostID'}) { $thisserver=$name; } |
$hostip{$id}=$ip; # IP address of host. |
| |
$hostdns{$name} = $id; # LonCAPA name of host by DNS. |
| |
|
| |
if ($id eq $perlvar{'lonHostID'}) { |
| |
Debug("Found me in the host table: $name"); |
| |
$thisserver=$name; |
| |
} |
| |
} |
| } |
} |
| close(CONFIG); |
close(CONFIG); |
| } |
} |
|
Line 3446 sub checkchildren {
|
Line 3382 sub checkchildren {
|
| &logthis('Going to check on the children'); |
&logthis('Going to check on the children'); |
| my $docdir=$perlvar{'lonDocRoot'}; |
my $docdir=$perlvar{'lonDocRoot'}; |
| foreach (sort keys %children) { |
foreach (sort keys %children) { |
| sleep 1; |
#sleep 1; |
| unless (kill 'USR1' => $_) { |
unless (kill 'USR1' => $_) { |
| &logthis ('Child '.$_.' is dead'); |
&logthis ('Child '.$_.' is dead'); |
| &logstatus($$.' is dead'); |
&logstatus($$.' is dead'); |
| |
delete($children{$_}); |
| } |
} |
| } |
} |
| sleep 5; |
sleep 5; |
| $SIG{ALRM} = sub { die "timeout" }; |
$SIG{ALRM} = sub { Debug("timeout"); |
| |
die "timeout"; }; |
| $SIG{__DIE__} = 'DEFAULT'; |
$SIG{__DIE__} = 'DEFAULT'; |
| &status("Checking on the children (waiting for reports)"); |
&status("Checking on the children (waiting for reports)"); |
| foreach (sort keys %children) { |
foreach (sort keys %children) { |
|
Line 3467 sub checkchildren {
|
Line 3405 sub checkchildren {
|
| #my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`; |
#my $result=`echo 'Killed lond process $_.' | mailto $emailto -s '$subj' > /dev/null`; |
| #$execdir=$perlvar{'lonDaemons'}; |
#$execdir=$perlvar{'lonDaemons'}; |
| #$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`; |
#$result=`/bin/cp $execdir/logs/lond.log $execdir/logs/lond.log.$_`; |
| |
delete($children{$_}); |
| alarm(0); |
alarm(0); |
| } |
} |
| } |
} |
|
Line 3474 sub checkchildren {
|
Line 3413 sub checkchildren {
|
| $SIG{ALRM} = 'DEFAULT'; |
$SIG{ALRM} = 'DEFAULT'; |
| $SIG{__DIE__} = \&catchexception; |
$SIG{__DIE__} = \&catchexception; |
| &status("Finished checking children"); |
&status("Finished checking children"); |
| |
&logthis('Finished Checking children'); |
| } |
} |
| |
|
| # --------------------------------------------------------------------- Logging |
# --------------------------------------------------------------------- Logging |
|
Line 3504 sub Debug {
|
Line 3444 sub Debug {
|
| # reply - Text to send to client. |
# reply - Text to send to client. |
| # request - Original request from client. |
# request - Original request from client. |
| # |
# |
| # Note: This increments Transactions |
|
| # |
|
| sub Reply { |
sub Reply { |
| alarm(120); |
my ($fd, $reply, $request) = @_; |
| my $fd = shift; |
|
| my $reply = shift; |
|
| my $request = shift; |
|
| |
|
| print $fd $reply; |
print $fd $reply; |
| Debug("Request was $request Reply was $reply"); |
Debug("Request was $request Reply was $reply"); |
| |
|
| $Transactions++; |
$Transactions++; |
| alarm(0); |
|
| |
|
| |
|
| } |
} |
| |
|
| |
|
| # |
# |
| # Sub to report a failure. |
# Sub to report a failure. |
| # This function: |
# This function: |
|
Line 3536 sub Reply {
|
Line 3471 sub Reply {
|
| # client: |
# client: |
| # |
# |
| sub Failure { |
sub Failure { |
| my $fd = shift; |
my $fd = shift; |
| my $reply = shift; |
my $reply = shift; |
| my $request = shift; |
my $request = shift; |
| |
|
| $Failures++; |
$Failures++; |
| Reply($fd, $reply, $request); # That's simple eh? |
Reply($fd, $reply, $request); # That's simple eh? |
| } |
} |
| # ------------------------------------------------------------------ Log status |
# ------------------------------------------------------------------ Log status |
| |
|
| sub logstatus { |
sub logstatus { |
| &status("Doing logging"); |
&status("Doing logging"); |
| my $docdir=$perlvar{'lonDocRoot'}; |
my $docdir=$perlvar{'lonDocRoot'}; |
| { |
{ |
| my $fh=IO::File->new(">>$docdir/lon-status/londstatus.txt"); |
my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt"); |
| print $fh $$."\t".$currenthostid."\t".$status."\t".$lastlog."\n"; |
print $fh $status."\n".$lastlog."\n".time."\n$keymode"; |
| $fh->close(); |
$fh->close(); |
| } |
} |
| &status("Finished londstatus.txt"); |
&status("Finished $$.txt"); |
| { |
{ |
| my $fh=IO::File->new(">$docdir/lon-status/londchld/$$.txt"); |
open(LOG,">>$docdir/lon-status/londstatus.txt"); |
| print $fh $status."\n".$lastlog."\n".time; |
flock(LOG,LOCK_EX); |
| $fh->close(); |
print LOG $$."\t".$clientname."\t".$currenthostid."\t" |
| } |
.$status."\t".$lastlog."\t $keymode\n"; |
| ResetStatistics; |
flock(DB,LOCK_UN); |
| &status("Finished logging"); |
close(LOG); |
| |
} |
| |
&status("Finished logging"); |
| } |
} |
| |
|
| sub initnewstatus { |
sub initnewstatus { |
|
Line 3583 sub status {
|
Line 3519 sub status {
|
| my $what=shift; |
my $what=shift; |
| my $now=time; |
my $now=time; |
| my $local=localtime($now); |
my $local=localtime($now); |
| my $status = "lond: $what $local "; |
$status=$local.': '.$what; |
| if($Transactions) { |
$0='lond: '.$what.' '.$local; |
| $status .= " Transactions: $Transactions Failed; $Failures"; |
|
| } |
|
| $0=$status; |
|
| } |
} |
| |
|
| # -------------------------------------------------------- Escape Special Chars |
# -------------------------------------------------------- Escape Special Chars |
|
Line 3620 sub reconlonc {
|
Line 3553 sub reconlonc {
|
| kill USR1 => $loncpid; |
kill USR1 => $loncpid; |
| } else { |
} else { |
| &logthis( |
&logthis( |
| "<font color=red>CRITICAL: " |
"<font color='red'>CRITICAL: " |
| ."lonc at pid $loncpid not responding, giving up</font>"); |
."lonc at pid $loncpid not responding, giving up</font>"); |
| } |
} |
| } else { |
} else { |
| &logthis('<font color=red>CRITICAL: lonc not running, giving up</font>'); |
&logthis('<font color="red">CRITICAL: lonc not running, giving up</font>'); |
| } |
} |
| } |
} |
| |
|
|
Line 3728 my $execdir=$perlvar{'lonDaemons'};
|
Line 3661 my $execdir=$perlvar{'lonDaemons'};
|
| open (PIDSAVE,">$execdir/logs/lond.pid"); |
open (PIDSAVE,">$execdir/logs/lond.pid"); |
| print PIDSAVE "$$\n"; |
print PIDSAVE "$$\n"; |
| close(PIDSAVE); |
close(PIDSAVE); |
| &logthis("<font color=red>CRITICAL: ---------- Starting ----------</font>"); |
&logthis("<font color='red'>CRITICAL: ---------- Starting ----------</font>"); |
| &status('Starting'); |
&status('Starting'); |
| |
|
| |
|
|
Line 3746 $SIG{USR2} = \&UpdateHosts;
|
Line 3679 $SIG{USR2} = \&UpdateHosts;
|
| |
|
| ReadHostTable; |
ReadHostTable; |
| |
|
| |
|
| # -------------------------------------------------------------- |
# -------------------------------------------------------------- |
| # Accept connections. When a connection comes in, it is validated |
# Accept connections. When a connection comes in, it is validated |
| # and if good, a child process is created to process transactions |
# and if good, a child process is created to process transactions |
|
Line 3762 while (1) {
|
Line 3694 while (1) {
|
| |
|
| sub make_new_child { |
sub make_new_child { |
| my $pid; |
my $pid; |
| |
# my $cipher; # Now global |
| my $sigset; |
my $sigset; |
| |
|
| $client = shift; |
$client = shift; |
|
Line 3783 sub make_new_child {
|
Line 3716 sub make_new_child {
|
| # the pid hash. |
# the pid hash. |
| # |
# |
| my $caller = getpeername($client); |
my $caller = getpeername($client); |
| my ($port,$iaddr)=unpack_sockaddr_in($caller); |
my ($port,$iaddr); |
| $clientip=inet_ntoa($iaddr); |
if (defined($caller) && length($caller) > 0) { |
| |
($port,$iaddr)=unpack_sockaddr_in($caller); |
| |
} else { |
| |
&logthis("Unable to determine who caller was, getpeername returned nothing"); |
| |
} |
| |
if (defined($iaddr)) { |
| |
$clientip = inet_ntoa($iaddr); |
| |
Debug("Connected with $clientip"); |
| |
$clientdns = gethostbyaddr($iaddr, AF_INET); |
| |
Debug("Connected with $clientdns by name"); |
| |
} else { |
| |
&logthis("Unable to determine clientip"); |
| |
$clientip='Unavailable'; |
| |
} |
| |
|
| if ($pid) { |
if ($pid) { |
| # Parent records the child's birth and returns. |
# Parent records the child's birth and returns. |
| sigprocmask(SIG_UNBLOCK, $sigset) |
sigprocmask(SIG_UNBLOCK, $sigset) |
| or die "Can't unblock SIGINT for fork: $!\n"; |
or die "Can't unblock SIGINT for fork: $!\n"; |
| $children{$pid} = $clientip; |
$children{$pid} = $clientip; |
| $children++; |
|
| &status('Started child '.$pid); |
&status('Started child '.$pid); |
| return; |
return; |
| } else { |
} else { |
|
Line 3808 sub make_new_child {
|
Line 3753 sub make_new_child {
|
| sigprocmask(SIG_UNBLOCK, $sigset) |
sigprocmask(SIG_UNBLOCK, $sigset) |
| or die "Can't unblock SIGINT for fork: $!\n"; |
or die "Can't unblock SIGINT for fork: $!\n"; |
| |
|
| |
# my $tmpsnum=0; # Now global |
| |
#---------------------------------------------------- kerberos 5 initialization |
| &Authen::Krb5::init_context(); |
&Authen::Krb5::init_context(); |
| &Authen::Krb5::init_ets(); |
&Authen::Krb5::init_ets(); |
| |
|
|
Line 3817 sub make_new_child {
|
Line 3762 sub make_new_child {
|
| # ============================================================================= |
# ============================================================================= |
| # do something with the connection |
# do something with the connection |
| # ----------------------------------------------------------------------------- |
# ----------------------------------------------------------------------------- |
| # see if we know client and check for spoof IP by challenge |
# see if we know client and 'check' for spoof IP by ineffective challenge |
| |
|
| ReadManagerTable; # May also be a manager!! |
ReadManagerTable; # May also be a manager!! |
| |
|
|
Line 3835 sub make_new_child {
|
Line 3780 sub make_new_child {
|
| $clientname = $managers{$clientip}; |
$clientname = $managers{$clientip}; |
| } |
} |
| my $clientok; |
my $clientok; |
| |
|
| if ($clientrec || $ismanager) { |
if ($clientrec || $ismanager) { |
| &status("Waiting for init from $clientip $clientname"); |
&status("Waiting for init from $clientip $clientname"); |
| &logthis('<font color="yellow">INFO: Connection, '. |
&logthis('<font color="yellow">INFO: Connection, '. |
|
Line 3842 sub make_new_child {
|
Line 3788 sub make_new_child {
|
| " ($clientname) connection type = $ConnectionType </font>" ); |
" ($clientname) connection type = $ConnectionType </font>" ); |
| &status("Connecting $clientip ($clientname))"); |
&status("Connecting $clientip ($clientname))"); |
| my $remotereq=<$client>; |
my $remotereq=<$client>; |
| $remotereq=~s/[^\w:]//g; |
chomp($remotereq); |
| |
Debug("Got init: $remotereq"); |
| |
my $inikeyword = split(/:/, $remotereq); |
| if ($remotereq =~ /^init/) { |
if ($remotereq =~ /^init/) { |
| &sethost("sethost:$perlvar{'lonHostID'}"); |
&sethost("sethost:$perlvar{'lonHostID'}"); |
| my $challenge="$$".time; |
# |
| print $client "$challenge\n"; |
# If the remote is attempting a local init... give that a try: |
| &status( |
# |
| "Waiting for challenge reply from $clientip ($clientname)"); |
my ($i, $inittype) = split(/:/, $remotereq); |
| $remotereq=<$client>; |
|
| $remotereq=~s/\W//g; |
# If the connection type is ssl, but I didn't get my |
| if ($challenge eq $remotereq) { |
# certificate files yet, then I'll drop back to |
| $clientok=1; |
# insecure (if allowed). |
| print $client "ok\n"; |
|
| |
if($inittype eq "ssl") { |
| |
my ($ca, $cert) = lonssl::CertificateFile; |
| |
my $kfile = lonssl::KeyFile; |
| |
if((!$ca) || |
| |
(!$cert) || |
| |
(!$kfile)) { |
| |
$inittype = ""; # This forces insecure attempt. |
| |
&logthis("<font color=\"blue\"> Certificates not " |
| |
."installed -- trying insecure auth</font>"); |
| |
} else { # SSL certificates are in place so |
| |
} # Leave the inittype alone. |
| |
} |
| |
|
| |
if($inittype eq "local") { |
| |
my $key = LocalConnection($client, $remotereq); |
| |
if($key) { |
| |
Debug("Got local key $key"); |
| |
$clientok = 1; |
| |
my $cipherkey = pack("H32", $key); |
| |
$cipher = new IDEA($cipherkey); |
| |
print $client "ok:local\n"; |
| |
&logthis('<font color="green"' |
| |
. "Successful local authentication </font>"); |
| |
$keymode = "local" |
| |
} else { |
| |
Debug("Failed to get local key"); |
| |
$clientok = 0; |
| |
shutdown($client, 3); |
| |
close $client; |
| |
} |
| |
} elsif ($inittype eq "ssl") { |
| |
my $key = SSLConnection($client); |
| |
if ($key) { |
| |
$clientok = 1; |
| |
my $cipherkey = pack("H32", $key); |
| |
$cipher = new IDEA($cipherkey); |
| |
&logthis('<font color="green">' |
| |
."Successfull ssl authentication with $clientname </font>"); |
| |
$keymode = "ssl"; |
| |
|
| |
} else { |
| |
$clientok = 0; |
| |
close $client; |
| |
} |
| |
|
| } else { |
} else { |
| &logthis( |
my $ok = InsecureConnection($client); |
| "<font color=blue>WARNING: $clientip did not reply challenge</font>"); |
if($ok) { |
| &status('No challenge reply '.$clientip); |
$clientok = 1; |
| |
&logthis('<font color="green">' |
| |
."Successful insecure authentication with $clientname </font>"); |
| |
print $client "ok\n"; |
| |
$keymode = "insecure"; |
| |
} else { |
| |
&logthis('<font color="yellow">' |
| |
."Attempted insecure connection disallowed </font>"); |
| |
close $client; |
| |
$clientok = 0; |
| |
|
| |
} |
| } |
} |
| } else { |
} else { |
| &logthis( |
&logthis( |
| "<font color=blue>WARNING: " |
"<font color='blue'>WARNING: " |
| ."$clientip failed to initialize: >$remotereq< </font>"); |
."$clientip failed to initialize: >$remotereq< </font>"); |
| &status('No init '.$clientip); |
&status('No init '.$clientip); |
| } |
} |
| |
|
| } else { |
} else { |
| &logthis( |
&logthis( |
| "<font color=blue>WARNING: Unknown client $clientip</font>"); |
"<font color='blue'>WARNING: Unknown client $clientip</font>"); |
| &status('Hung up on '.$clientip); |
&status('Hung up on '.$clientip); |
| } |
} |
| |
|
| if ($clientok) { |
if ($clientok) { |
| # ---------------- New known client connecting, could mean machine online again |
# ---------------- New known client connecting, could mean machine online again |
| |
|
|
Line 3881 sub make_new_child {
|
Line 3887 sub make_new_child {
|
| } |
} |
| &reconlonc("$perlvar{'lonSockDir'}/$id"); |
&reconlonc("$perlvar{'lonSockDir'}/$id"); |
| } |
} |
| &logthis("<font color=green>Established connection: $clientname</font>"); |
&logthis("<font color='green'>Established connection: $clientname</font>"); |
| &status('Will listen to '.$clientname); |
&status('Will listen to '.$clientname); |
| |
|
| ResetStatistics(); |
|
| |
|
| # ------------------------------------------------------------ Process requests |
# ------------------------------------------------------------ Process requests |
| my $KeepGoing = 1; |
my $keep_going = 1; |
| while ((my $userinput=GetRequest) && $KeepGoing) { |
my $user_input; |
| $KeepGoing = ProcessRequest($userinput); |
while(($user_input = get_request) && $keep_going) { |
| # -------------------------------------------------------------------- complete |
alarm(120); |
| |
Debug("Main: Got $user_input\n"); |
| &status('Listening to '.$clientname); |
$keep_going = &process_request($user_input); |
| |
alarm(0); |
| |
&status('Listening to '.$clientname." ($keymode)"); |
| } |
} |
| |
|
| # --------------------------------------------- client unknown or fishy, refuse |
# --------------------------------------------- client unknown or fishy, refuse |
| } else { |
} else { |
| print $client "refused\n"; |
print $client "refused\n"; |
| $client->close(); |
$client->close(); |
| &logthis("<font color=blue>WARNING: " |
&logthis("<font color='blue'>WARNING: " |
| ."Rejected client $clientip, closing connection</font>"); |
."Rejected client $clientip, closing connection</font>"); |
| } |
} |
| } |
} |
| |
|
| # ============================================================================= |
# ============================================================================= |
| |
|
| &logthis("<font color=red>CRITICAL: " |
&logthis("<font color='red'>CRITICAL: " |
| ."Disconnect from $clientip ($clientname)</font>"); |
."Disconnect from $clientip ($clientname)</font>"); |
| |
|
| |
|
|
Line 3930 sub make_new_child {
|
Line 3936 sub make_new_child {
|
| # |
# |
| sub ManagePermissions |
sub ManagePermissions |
| { |
{ |
| my $request = shift; |
|
| my $domain = shift; |
my ($request, $domain, $user, $authtype) = @_; |
| my $user = shift; |
|
| my $authtype= shift; |
|
| |
|
| # See if the request is of the form /$domain/_au |
# See if the request is of the form /$domain/_au |
| &logthis("ruequest is $request"); |
|
| if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput... |
if($request =~ /^(\/$domain\/_au)$/) { # It's an author rolesput... |
| my $execdir = $perlvar{'lonDaemons'}; |
my $execdir = $perlvar{'lonDaemons'}; |
| my $userhome= "/home/$user" ; |
my $userhome= "/home/$user" ; |
|
Line 3944 sub ManagePermissions
|
Line 3947 sub ManagePermissions
|
| system("$execdir/lchtmldir $userhome $user $authtype"); |
system("$execdir/lchtmldir $userhome $user $authtype"); |
| } |
} |
| } |
} |
| |
|
| |
|
| |
# |
| |
# Return the full path of a user password file, whether it exists or not. |
| |
# Parameters: |
| |
# domain - Domain in which the password file lives. |
| |
# user - name of the user. |
| |
# Returns: |
| |
# Full passwd path: |
| # |
# |
| # GetAuthType - Determines the authorization type of a user in a domain. |
sub password_path { |
| |
my ($domain, $user) = @_; |
| |
|
| |
|
| |
my $path = &propath($domain, $user); |
| |
$path .= "/passwd"; |
| |
|
| |
return $path; |
| |
} |
| |
|
| |
# Password Filename |
| |
# Returns the path to a passwd file given domain and user... only if |
| |
# it exists. |
| |
# Parameters: |
| |
# domain - Domain in which to search. |
| |
# user - username. |
| |
# Returns: |
| |
# - If the password file exists returns its path. |
| |
# - If the password file does not exist, returns undefined. |
| |
# |
| |
sub password_filename { |
| |
my ($domain, $user) = @_; |
| |
|
| |
Debug ("PasswordFilename called: dom = $domain user = $user"); |
| |
|
| |
my $path = &password_path($domain, $user); |
| |
Debug("PasswordFilename got path: $path"); |
| |
if(-e $path) { |
| |
return $path; |
| |
} else { |
| |
return undef; |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Rewrite the contents of the user's passwd file. |
| |
# Parameters: |
| |
# domain - domain of the user. |
| |
# name - User's name. |
| |
# contents - New contents of the file. |
| |
# Returns: |
| |
# 0 - Failed. |
| |
# 1 - Success. |
| |
# |
| |
sub rewrite_password_file { |
| |
my ($domain, $user, $contents) = @_; |
| |
|
| |
my $file = &password_filename($domain, $user); |
| |
if (defined $file) { |
| |
my $pf = IO::File->new(">$file"); |
| |
if($pf) { |
| |
print $pf "$contents\n"; |
| |
return 1; |
| |
} else { |
| |
return 0; |
| |
} |
| |
} else { |
| |
return 0; |
| |
} |
| |
|
| |
} |
| |
|
| |
# |
| |
# get_auth_type - Determines the authorization type of a user in a domain. |
| |
|
| # Returns the authorization type or nouser if there is no such user. |
# Returns the authorization type or nouser if there is no such user. |
| # |
# |
| sub GetAuthType |
sub get_auth_type |
| { |
{ |
| my $domain = shift; |
|
| my $user = shift; |
|
| |
|
| Debug("GetAuthType( $domain, $user ) \n"); |
my ($domain, $user) = @_; |
| |
|
| |
Debug("get_auth_type( $domain, $user ) \n"); |
| my $proname = &propath($domain, $user); |
my $proname = &propath($domain, $user); |
| my $passwdfile = "$proname/passwd"; |
my $passwdfile = "$proname/passwd"; |
| if( -e $passwdfile ) { |
if( -e $passwdfile ) { |
|
Line 3970 sub GetAuthType
|
Line 4045 sub GetAuthType
|
| } |
} |
| |
|
| return "$authtype:$availinfo"; |
return "$authtype:$availinfo"; |
| } |
} else { |
| else { |
|
| Debug("Returning nouser"); |
Debug("Returning nouser"); |
| return "nouser"; |
return "nouser"; |
| } |
} |
| } |
} |
| |
|
| |
# |
| |
# Validate a user given their domain, name and password. This utility |
| |
# function is used by both AuthenticateHandler and ChangePasswordHandler |
| |
# to validate the login credentials of a user. |
| |
# Parameters: |
| |
# $domain - The domain being logged into (this is required due to |
| |
# the capability for multihomed systems. |
| |
# $user - The name of the user being validated. |
| |
# $password - The user's propoposed password. |
| |
# |
| |
# Returns: |
| |
# 1 - The domain,user,pasword triplet corresponds to a valid |
| |
# user. |
| |
# 0 - The domain,user,password triplet is not a valid user. |
| |
# |
| |
sub validate_user { |
| |
my ($domain, $user, $password) = @_; |
| |
|
| |
|
| |
# Why negative ~pi you may well ask? Well this function is about |
| |
# authentication, and therefore very important to get right. |
| |
# I've initialized the flag that determines whether or not I've |
| |
# validated correctly to a value it's not supposed to get. |
| |
# At the end of this function. I'll ensure that it's not still that |
| |
# value so we don't just wind up returning some accidental value |
| |
# as a result of executing an unforseen code path that |
| |
# did not set $validated. |
| |
|
| |
my $validated = -3.14159; |
| |
|
| |
# How we authenticate is determined by the type of authentication |
| |
# the user has been assigned. If the authentication type is |
| |
# "nouser", the user does not exist so we will return 0. |
| |
|
| |
my $contents = &get_auth_type($domain, $user); |
| |
my ($howpwd, $contentpwd) = split(/:/, $contents); |
| |
|
| |
my $null = pack("C",0); # Used by kerberos auth types. |
| |
|
| |
if ($howpwd ne 'nouser') { |
| |
|
| |
if($howpwd eq "internal") { # Encrypted is in local password file. |
| |
$validated = (crypt($password, $contentpwd) eq $contentpwd); |
| |
} |
| |
elsif ($howpwd eq "unix") { # User is a normal unix user. |
| |
$contentpwd = (getpwnam($user))[1]; |
| |
if($contentpwd) { |
| |
if($contentpwd eq 'x') { # Shadow password file... |
| |
my $pwauth_path = "/usr/local/sbin/pwauth"; |
| |
open PWAUTH, "|$pwauth_path" or |
| |
die "Cannot invoke authentication"; |
| |
print PWAUTH "$user\n$password\n"; |
| |
close PWAUTH; |
| |
$validated = ! $?; |
| |
|
| |
} else { # Passwords in /etc/passwd. |
| |
$validated = (crypt($password, |
| |
$contentpwd) eq $contentpwd); |
| |
} |
| |
} else { |
| |
$validated = 0; |
| |
} |
| |
} |
| |
elsif ($howpwd eq "krb4") { # user is in kerberos 4 auth. domain. |
| |
if(! ($password =~ /$null/) ) { |
| |
my $k4error = &Authen::Krb4::get_pw_in_tkt($user, |
| |
"", |
| |
$contentpwd,, |
| |
'krbtgt', |
| |
$contentpwd, |
| |
1, |
| |
$password); |
| |
if(!$k4error) { |
| |
$validated = 1; |
| |
} else { |
| |
$validated = 0; |
| |
&logthis('krb4: '.$user.', '.$contentpwd.', '. |
| |
&Authen::Krb4::get_err_txt($Authen::Krb4::error)); |
| |
} |
| |
} else { |
| |
$validated = 0; # Password has a match with null. |
| |
} |
| |
} elsif ($howpwd eq "krb5") { # User is in kerberos 5 auth. domain. |
| |
if(!($password =~ /$null/)) { # Null password not allowed. |
| |
my $krbclient = &Authen::Krb5::parse_name($user.'@' |
| |
.$contentpwd); |
| |
my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd; |
| |
my $krbserver = &Authen::Krb5::parse_name($krbservice); |
| |
my $credentials= &Authen::Krb5::cc_default(); |
| |
$credentials->initialize($krbclient); |
| |
my $krbreturn = &Authen::KRb5::get_in_tkt_with_password($krbclient, |
| |
$krbserver, |
| |
$password, |
| |
$credentials); |
| |
$validated = ($krbreturn == 1); |
| |
} else { |
| |
$validated = 0; |
| |
} |
| |
} elsif ($howpwd eq "localauth") { |
| |
# Authenticate via installation specific authentcation method: |
| |
$validated = &localauth::localauth($user, |
| |
$password, |
| |
$contentpwd); |
| |
} else { # Unrecognized auth is also bad. |
| |
$validated = 0; |
| |
} |
| |
} else { |
| |
$validated = 0; |
| |
} |
| |
# |
| |
# $validated has the correct stat of the authentication: |
| |
# |
| |
|
| |
unless ($validated != -3.14159) { |
| |
die "ValidateUser - failed to set the value of validated"; |
| |
} |
| |
return $validated; |
| |
} |
| |
|
| |
|
| sub addline { |
sub addline { |
| my ($fname,$hostid,$ip,$newline)=@_; |
my ($fname,$hostid,$ip,$newline)=@_; |
| my $contents; |
my $contents; |
|
Line 4061 sub chatadd {
|
Line 4255 sub chatadd {
|
| sub unsub { |
sub unsub { |
| my ($fname,$clientip)=@_; |
my ($fname,$clientip)=@_; |
| my $result; |
my $result; |
| |
my $unsubs = 0; # Number of successful unsubscribes: |
| |
|
| |
|
| |
# An old way subscriptions were handled was to have a |
| |
# subscription marker file: |
| |
|
| |
Debug("Attempting unlink of $fname.$clientname"); |
| if (unlink("$fname.$clientname")) { |
if (unlink("$fname.$clientname")) { |
| $result="ok\n"; |
$unsubs++; # Successful unsub via marker file. |
| } else { |
} |
| $result="not_subscribed\n"; |
|
| } |
# The more modern way to do it is to have a subscription list |
| |
# file: |
| |
|
| if (-e "$fname.subscription") { |
if (-e "$fname.subscription") { |
| my $found=&addline($fname,$clientname,$clientip,''); |
my $found=&addline($fname,$clientname,$clientip,''); |
| if ($found) { $result="ok\n"; } |
if ($found) { |
| |
$unsubs++; |
| |
} |
| |
} |
| |
|
| |
# If either or both of these mechanisms succeeded in unsubscribing a |
| |
# resource we can return ok: |
| |
|
| |
if($unsubs) { |
| |
$result = "ok\n"; |
| } else { |
} else { |
| if ($result != "ok\n") { $result="not_subscribed\n"; } |
$result = "not_subscribed\n"; |
| } |
} |
| |
|
| return $result; |
return $result; |
| } |
} |
| |
|
|
Line 4193 sub make_passwd_file {
|
Line 4406 sub make_passwd_file {
|
| } |
} |
| } elsif ($umode eq 'unix') { |
} elsif ($umode eq 'unix') { |
| { |
{ |
| my $execpath="$perlvar{'lonDaemons'}/"."lcuseradd"; |
# |
| |
# Don't allow the creation of privileged accounts!!! that would |
| |
# be real bad!!! |
| |
# |
| |
my $uid = getpwnam($uname); |
| |
if((defined $uid) && ($uid == 0)) { |
| |
&logthis(">>>Attempted to create privilged account blocked"); |
| |
return "no_priv_account_error\n"; |
| |
} |
| |
|
| |
my $execpath ="$perlvar{'lonDaemons'}/"."lcuseradd"; |
| |
|
| |
my $lc_error_file = $execdir."/tmp/lcuseradd".$$.".status"; |
| { |
{ |
| &Debug("Executing external: ".$execpath); |
&Debug("Executing external: ".$execpath); |
| &Debug("user = ".$uname.", Password =". $npass); |
&Debug("user = ".$uname.", Password =". $npass); |
|
Line 4201 sub make_passwd_file {
|
Line 4426 sub make_passwd_file {
|
| print $se "$uname\n"; |
print $se "$uname\n"; |
| print $se "$npass\n"; |
print $se "$npass\n"; |
| print $se "$npass\n"; |
print $se "$npass\n"; |
| |
print $se "$lc_error_file\n"; # Status -> unique file. |
| } |
} |
| my $useraddok = $?; |
my $error = IO::File->new("< $lc_error_file"); |
| |
my $useraddok = <$error>; |
| |
$error->close; |
| |
unlink($lc_error_file); |
| |
|
| |
chomp $useraddok; |
| |
|
| if($useraddok > 0) { |
if($useraddok > 0) { |
| &logthis("Failed lcuseradd: ".&lcuseraddstrerror($useraddok)); |
my $error_text = &lcuseraddstrerror($useraddok); |
| |
&logthis("Failed lcuseradd: $error_text"); |
| |
$result = "lcuseradd_failed:$error_text\n"; |
| |
} else { |
| |
my $pf = IO::File->new(">$passfilename"); |
| |
print $pf "unix:\n"; |
| } |
} |
| my $pf = IO::File->new(">$passfilename"); |
|
| print $pf "unix:\n"; |
|
| } |
} |
| } elsif ($umode eq 'none') { |
} elsif ($umode eq 'none') { |
| { |
{ |
| my $pf = IO::File->new(">$passfilename"); |
my $pf = IO::File->new("> $passfilename"); |
| print $pf "none:\n"; |
print $pf "none:\n"; |
| } |
} |
| } else { |
} else { |
|
Line 4225 sub sethost {
|
Line 4460 sub sethost {
|
| my (undef,$hostid)=split(/:/,$remotereq); |
my (undef,$hostid)=split(/:/,$remotereq); |
| if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } |
if (!defined($hostid)) { $hostid=$perlvar{'lonHostID'}; } |
| if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { |
if ($hostip{$perlvar{'lonHostID'}} eq $hostip{$hostid}) { |
| $currenthostid=$hostid; |
$currenthostid =$hostid; |
| $currentdomainid=$hostdom{$hostid}; |
$currentdomainid=$hostdom{$hostid}; |
| &logthis("Setting hostid to $hostid, and domain to $currentdomainid"); |
&logthis("Setting hostid to $hostid, and domain to $currentdomainid"); |
| } else { |
} else { |
|
Line 4241 sub version {
|
Line 4476 sub version {
|
| $remoteVERSION=(split(/:/,$userinput))[1]; |
$remoteVERSION=(split(/:/,$userinput))[1]; |
| return "version:$VERSION"; |
return "version:$VERSION"; |
| } |
} |
| ############## >>>>>>>>>>>>>>>>>>>>>>>>>> FUTUREWORK <<<<<<<<<<<<<<<<<<<<<<<<<<<< |
|
| #There is a copy of this in lonnet.pm |
#There is a copy of this in lonnet.pm |
| # Can we hoist these lil' things out into common places? |
|
| # |
|
| sub userload { |
sub userload { |
| my $numusers=0; |
my $numusers=0; |
| { |
{ |
|
Line 4267 sub userload {
|
Line 4500 sub userload {
|
| return $userloadpercent; |
return $userloadpercent; |
| } |
} |
| |
|
| |
# Routines for serializing arrays and hashes (copies from lonnet) |
| |
|
| |
sub array2str { |
| |
my (@array) = @_; |
| |
my $result=&arrayref2str(\@array); |
| |
$result=~s/^__ARRAY_REF__//; |
| |
$result=~s/__END_ARRAY_REF__$//; |
| |
return $result; |
| |
} |
| |
|
| |
sub arrayref2str { |
| |
my ($arrayref) = @_; |
| |
my $result='__ARRAY_REF__'; |
| |
foreach my $elem (@$arrayref) { |
| |
if(ref($elem) eq 'ARRAY') { |
| |
$result.=&arrayref2str($elem).'&'; |
| |
} elsif(ref($elem) eq 'HASH') { |
| |
$result.=&hashref2str($elem).'&'; |
| |
} elsif(ref($elem)) { |
| |
#print("Got a ref of ".(ref($elem))." skipping."); |
| |
} else { |
| |
$result.=&escape($elem).'&'; |
| |
} |
| |
} |
| |
$result=~s/\&$//; |
| |
$result .= '__END_ARRAY_REF__'; |
| |
return $result; |
| |
} |
| |
|
| |
sub hash2str { |
| |
my (%hash) = @_; |
| |
my $result=&hashref2str(\%hash); |
| |
$result=~s/^__HASH_REF__//; |
| |
$result=~s/__END_HASH_REF__$//; |
| |
return $result; |
| |
} |
| |
|
| |
sub hashref2str { |
| |
my ($hashref)=@_; |
| |
my $result='__HASH_REF__'; |
| |
foreach (sort(keys(%$hashref))) { |
| |
if (ref($_) eq 'ARRAY') { |
| |
$result.=&arrayref2str($_).'='; |
| |
} elsif (ref($_) eq 'HASH') { |
| |
$result.=&hashref2str($_).'='; |
| |
} elsif (ref($_)) { |
| |
$result.='='; |
| |
#print("Got a ref of ".(ref($_))." skipping."); |
| |
} else { |
| |
if ($_) {$result.=&escape($_).'=';} else { last; } |
| |
} |
| |
|
| |
if(ref($hashref->{$_}) eq 'ARRAY') { |
| |
$result.=&arrayref2str($hashref->{$_}).'&'; |
| |
} elsif(ref($hashref->{$_}) eq 'HASH') { |
| |
$result.=&hashref2str($hashref->{$_}).'&'; |
| |
} elsif(ref($hashref->{$_})) { |
| |
$result.='&'; |
| |
#print("Got a ref of ".(ref($hashref->{$_}))." skipping."); |
| |
} else { |
| |
$result.=&escape($hashref->{$_}).'&'; |
| |
} |
| |
} |
| |
$result=~s/\&$//; |
| |
$result .= '__END_HASH_REF__'; |
| |
return $result; |
| |
} |
| |
|
| # ----------------------------------- POD (plain old documentation, CPAN style) |
# ----------------------------------- POD (plain old documentation, CPAN style) |
| |
|
| =head1 NAME |
=head1 NAME |
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