Annotation of loncom/build/CHECKRPMS, revision 1.13

1.11      raeburn     1: #!/usr/bin/perl
1.1       raeburn     2: #
                      3: # The LearningOnline Network with CAPA
                      4: # Checks status of RPM packages on system.
                      5: #
1.13    ! raeburn     6: # $Id: CHECKRPMS,v 1.13 2011/05/12 20:19:15 raeburn Exp $
        !             7: #
1.1       raeburn     8: # Copyright Michigan State University Board of Trustees
                      9: #
                     10: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                     11: #
                     12: # LON-CAPA is free software; you can redistribute it and/or modify
                     13: # it under the terms of the GNU General Public License as published by
                     14: # the Free Software Foundation; either version 2 of the License, or
                     15: # (at your option) any later version.
                     16: #
                     17: # LON-CAPA is distributed in the hope that it will be useful,
                     18: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     19: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     20: # GNU General Public License for more details.
                     21: #
                     22: # You should have received a copy of the GNU General Public License
                     23: # along with LON-CAPA; if not, write to the Free Software
                     24: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
                     25: #
                     26: # /home/httpd/html/adm/gpl.txt
                     27: #
                     28: # http://www.lon-capa.org/
                     29: #
                     30: 
                     31: =pod
                     32: 
                     33: =head1 NAME
                     34: 
1.11      raeburn    35: B<CHECKRPMS> - automated status report about RPMs (RHEL/Fedora/CentOS/SuSE) 
                     36:                or debs (Debian/Ubuntu) on a system. 
1.1       raeburn    37: 
                     38: =head1 DESCRIPTION
                     39: 
                     40: This file automates the process of checking for available updates
                     41: to LON-CAPA systems. distprobe is used to determine the Linux distribution.
                     42: 
                     43: The utility which is used to complete the check depends on the distro:
                     44: 
1.13    ! raeburn    45: fedora, rhel >= 5, centos, scientific - yum
1.1       raeburn    46: suse 9.X and sles9 - you
1.13    ! raeburn    47: suse 10.2,10.3,11.1,11.2,11.3,11.4,sles11 - zypper 
1.9       raeburn    48: sles10,suse10.1 - rug
1.1       raeburn    49: rhel 4 - up2date
1.11      raeburn    50: debian, ubuntu - apt-get
1.1       raeburn    51: others - check-rpms
                     52: 
                     53: Created by amalgamating previous distribution-specific CHECKRPMS.dist files (where dist was one of: fedora, rhel, suse, sles10, default).
                     54: 
                     55: Must be run as root or www.
                     56: 
                     57: =cut
                     58: 
                     59: use strict;
                     60: use lib '/home/httpd/lib/perl/';
                     61: use LONCAPA::Configuration;
1.10      raeburn    62: use Apache::loncommon();
1.1       raeburn    63: 
                     64: my $tmpfile = '/tmp/CHECKRPMS.'.$$;
                     65: my $perlvar= LONCAPA::Configuration::read_conf('loncapa.conf');
                     66: 
                     67: # Determine who we email
1.10      raeburn    68: my $defdom = $perlvar->{'lonDefDomain'};
                     69: my $origmail = $perlvar->{'lonAdmEMail'};
                     70: my $emailto = &Apache::loncommon::build_recipient_list(undef,
                     71:                                    'packagesmail',$defdom,$origmail);
1.1       raeburn    72: my $subj = $perlvar->{'lonHostID'};
                     73: 
                     74: # Get Linux distro
                     75: open(PIPE, "$perlvar->{'lonDaemons'}/distprobe |");
                     76: my $distro = <PIPE>;
                     77: close(PIPE);
                     78: 
                     79: undef($perlvar);
                     80: 
                     81: my $hostname = `hostname`;
                     82: chomp($hostname);
                     83: open(TMPFILE,">$tmpfile");
                     84: print TMPFILE localtime(time).'    '.$hostname."\n";
                     85: close(TMPFILE);
                     86: 
                     87: my ($cmd,$send,$addsubj);
                     88: if ($distro =~ /^fedora\d+$/) {
                     89:     $cmd = 'yum update';
                     90:     &prepare_msg($tmpfile,$cmd);
                     91:     ($send,$addsubj) = &check_with_yum($tmpfile);
1.6       albertel   92: } elsif ($distro =~ /^(suse|sles)9\.?\d?$/) {
1.1       raeburn    93:     $cmd = 'you';
                     94:     &prepare_msg($tmpfile,$cmd);
                     95:     ($send,$addsubj) = &check_with_you($tmpfile);
1.11      raeburn    96: } elsif ($distro =~ /^suse(\d{2,})\.(\d+)$/) {
1.9       raeburn    97:     my $version =$1;
1.11      raeburn    98:     my $subversion = $2;
                     99:     if (($version > 10) || (($version == 10) && ($subversion > 1))) { 
1.9       raeburn   100:         $cmd = 'zypper up';
                    101:         &prepare_msg($tmpfile,$cmd);
                    102:         ($send,$addsubj) = &check_with_zypper($tmpfile);
                    103:     } else {
                    104:         $cmd = 'rug up';
                    105:         &prepare_msg($tmpfile,$cmd);
                    106:         ($send,$addsubj) = &check_with_rug($tmpfile);
                    107:     }
                    108: } elsif ($distro =~ /^sles10$/) {
1.1       raeburn   109:     $cmd = 'rug up';
                    110:     &prepare_msg($tmpfile,$cmd);
                    111:     ($send,$addsubj) = &check_with_rug($tmpfile);
1.13    ! raeburn   112: } elsif ($distro =~ /^sles(\d+)$/) {
        !           113:     $cmd = 'zypper up';
        !           114:     &prepare_msg($tmpfile,$cmd);
        !           115:     ($send,$addsubj) = &check_with_zypper($tmpfile);
1.7       raeburn   116: } elsif ($distro =~ /^rhes(\d+)$/) {
                    117:     my $version = $1;
                    118:     if ($version == 4) {
                    119:         $cmd ='up2date -u --nox';
                    120:         &prepare_msg($tmpfile,$cmd);
                    121:         ($send,$addsubj) = &check_with_up2date($tmpfile);
                    122:     } elsif ($version > 4) {
                    123:         $cmd = 'yum update';
                    124:         &prepare_msg($tmpfile,$cmd);
                    125:         ($send,$addsubj) = &check_with_yum($tmpfile);
                    126:     }
1.8       raeburn   127: } elsif ($distro =~ /^centos\d+$/) {
                    128:     $cmd = 'yum update';
                    129:     &prepare_msg($tmpfile,$cmd);
                    130:     ($send,$addsubj) = &check_with_yum($tmpfile);
1.12      raeburn   131: } elsif ($distro =~ /^scientific\d+$/) {
1.8       raeburn   132:     $cmd = 'yum update';
                    133:     &prepare_msg($tmpfile,$cmd);
                    134:     ($send,$addsubj) = &check_with_yum($tmpfile);
1.11      raeburn   135: } elsif ($distro =~ /^(debian|ubuntu)\d+/) {
                    136:     $cmd = 'apt-get upgrade';
                    137:     &prepare_msg($tmpfile,$cmd);
                    138:     ($send,$addsubj) = &check_with_apt($tmpfile);
1.1       raeburn   139: } else {
                    140:     $cmd = '/usr/local/bin/check-rpms --update';
                    141:     ($send,$addsubj) = &check_with_checkrpms($tmpfile);
                    142: }
                    143: if ($send) {
                    144:     $subj .= $addsubj;
1.10      raeburn   145:     system(qq{mail -s '$subj' "$emailto" < $tmpfile});
1.1       raeburn   146: }
                    147: 
                    148: sub prepare_msg {
                    149:     my ($tmpfile,$cmd) = @_;
                    150:     #
                    151:     # Put some nice text in $tmpfile
                    152:     open(TMPFILE,">>$tmpfile");
                    153:     print TMPFILE <<ENDHEADER;
                    154: Your system needs to be updated.  Please execute (as root)
                    155: 
                    156: $cmd
                    157: 
                    158: to bring it up to date.
                    159: 
1.5       raeburn   160: This is very important for the security of your server.  The packages which need to be updated are listed below.
1.1       raeburn   161: 
                    162: ENDHEADER
                    163:     close(TMPFILE);
                    164:     return;
                    165: }
                    166: 
                    167: sub check_with_you {
                    168:     my ($tmpfile) =@_;
                    169:     my $you = '/usr/bin/online_update';
                    170:     my $sendflag = 0;
                    171:     my $append_to_subj;
                    172: 
1.5       raeburn   173:     if (open (PIPE, "$you -k -len 2>&1 |")) {
1.1       raeburn   174:         my $output=<PIPE>;
                    175:         close(PIPE);
                    176:         chomp $output;
                    177:         unless ($output eq 'No updates available.') {
1.5       raeburn   178:             if (open (PIPE, "$you -s -d -len |grep ^INSTALL |")) {
                    179:                 my @updates = <PIPE>;
                    180:                 close(PIPE);
                    181:                 my $allpackages;
                    182:                 foreach my $line (@updates) {
                    183:                     my $package = substr($line,rindex($line,'/')+1);
                    184:                     if ($package ne '') {
                    185:                         $allpackages .= $package;
                    186:                     }
                    187:                 }
                    188:                 if ($allpackages ne '') {
                    189:                     open(TMPFILE,">>$tmpfile");
                    190:                     print TMPFILE $allpackages;
                    191:                     close(TMPFILE);
                    192:                     $sendflag = 1;
                    193:                     $append_to_subj = ' RPMS to upgrade';
                    194:                 }
                    195:             } else {
                    196:                 $sendflag = 1;
                    197:                 $append_to_subj = ' Error running RPM update script';
                    198:             }
1.1       raeburn   199:         }
                    200:     } else {
                    201:         $sendflag = 1;
                    202:         $append_to_subj = ' Error running RPM update script';
                    203:     }
                    204:     return ($sendflag,$append_to_subj);
                    205: }
                    206: 
                    207: sub check_with_yum {
                    208:     my ($tmpfile) = @_;
                    209:     my $yum = '/usr/bin/yum';
                    210:     my $sendflag = 0;
                    211:     my $append_to_subj;
                    212: 
                    213:     #
                    214:     # Execute yum command
                    215:     my $command = $yum.' check-update '.'>>'.$tmpfile;
                    216:     system($command);
                    217: 
                    218:     my $returnvalue = $?>>8;
                    219: 
                    220:     #
                    221:     # Determine status of yum run
                    222:     if (100 == $returnvalue) {
                    223:         $sendflag = 1;
                    224:         $append_to_subj = ' RPMS to upgrade';
                    225:     } elsif (0 != $returnvalue) {
                    226:         $sendflag = 1;
                    227:         $append_to_subj = ' Error running RPM update script';
                    228:     } else {
                    229:         # yum returned 0, so everything is up to date.
                    230:     }
                    231:     return ($sendflag,$append_to_subj);
                    232: }
                    233: 
                    234: sub check_with_up2date {
                    235:     my ($tmpfile) = @_;
                    236:     my $up2date = '/usr/bin/up2date-nox';
                    237:     my $sendflag = 0;
                    238:     my $append_to_subj;
                    239:     #
                    240:     # Execute online_update command to check for updates
                    241:     my $up2date_error = 1;
                    242:     if (open (PIPE, "$up2date -l 2>&1 |")) {
                    243:         my @result=<PIPE>;
                    244:         close(PIPE);
1.4       raeburn   245:         my $output; 
                    246:         foreach my $line (@result) {
                    247:             if ($line =~ /^The following Packages were marked to be skipped by your configuration:/) {
                    248:                 last;
                    249:             } else {
                    250:                 $output .= $line;
                    251:             }
                    252:         } 
1.1       raeburn   253:         if (@result > 0) {
                    254:             if ($output =~ /Fetching Obsoletes list/) {
                    255:                 $up2date_error = 0;
                    256:                 if ($output =~ /Name\s+Version\s+Rel\s+[\n\r\f]+\-+[\n\r\f]+(.+)/s) {
                    257:                     my $packagelist = $1;
1.4       raeburn   258:                     if ($packagelist ne '' && $packagelist !~ /^[\s\n\r\f]+$/) {
1.1       raeburn   259:                         open(TMPFILE,">>$tmpfile");
                    260:                         print TMPFILE $packagelist;
                    261:                         close(TMPFILE);
                    262:                         $append_to_subj = ' RPMS to upgrade';
                    263:                         $sendflag = 1;
                    264:                     }
                    265:                 }
                    266:             }
                    267:         }
                    268:     }
                    269:     if ($up2date_error) {
                    270:         $append_to_subj = ' Error running RPM update script';
                    271:         $sendflag = 1;
                    272:     }
                    273:     return ($sendflag,$append_to_subj);
                    274: }
                    275: 
                    276: sub check_with_rug {
                    277:     my ($tmpfile) = @_;
                    278:     my $rug = '/usr/bin/rug';
                    279:     my $sendflag = 0;
                    280:     my $append_to_subj;
                    281:     #
                    282:     # Execute rug command to check for updates
                    283:     if (open (PIPE, "$rug up -N 2>&1 |")) {
                    284:         my @output=<PIPE>;
                    285:         close(PIPE);
                    286:         chomp(@output);
                    287:         my @clean_output;
                    288:         foreach my $line (@output) {
1.3       raeburn   289:             if ($line =~ /^Waking\sup\sZMD\.\.\./) {
1.1       raeburn   290:                 next;
1.2       raeburn   291:             } elsif ($line eq 'Done') {
                    292:                 next;
                    293:             } elsif ($line eq '') {
                    294:                 next;
                    295:             } elsif ($line eq 'The following packages will be installed:') {
                    296:                 next;
                    297:             } elsif ($line eq 'Resolving Dependencies...') {
                    298:                 next;
                    299:             } elsif ($line eq 'Transaction...') {
                    300:                 last;
                    301:             } elsif ($line eq 'No updates are available.') {
1.1       raeburn   302:                 last;
1.5       raeburn   303:             } elsif ($line eq 'Downloading Packages...') {
                    304:                 last;
1.1       raeburn   305:             } else {
                    306:                 push(@clean_output,$line);
                    307:             }
                    308:         }
                    309:         if (@clean_output > 0) {
                    310:             open(TMPFILE,">>$tmpfile");
                    311:             print TMPFILE join("\n",@clean_output);
                    312:             close(TMPFILE);
                    313:             $append_to_subj= ' RPMS to upgrade';
                    314:             $sendflag = 1;
                    315:          }
                    316:     } else {
                    317:         $append_to_subj = ' Error running RPM update check';
                    318:         $sendflag = 1;
                    319:     }
                    320:     return ($sendflag,$append_to_subj);
                    321: }
                    322: 
1.9       raeburn   323: sub check_with_zypper {
                    324:     my ($tmpfile) = @_;
                    325:     my $zypper = '/usr/bin/zypper';
                    326:     my $sendflag = 0;
                    327:     my $append_to_subj;
                    328:     my $header;
                    329:     #
                    330:     # Execute zypper command to check for updates
                    331:     if (open (PIPE, "$zypper lu 2>&1 |")) {
                    332:         my @output=<PIPE>;
                    333:         close(PIPE);
                    334:         chomp(@output);
                    335:         my @clean_output;
                    336:         foreach my $line (@output) {
                    337:             if ($line eq 'Restoring system sources...') {
                    338:                 next;
                    339:             } elsif ($line =~ /^Parsing\smetadata\sfor\s/) {
                    340:                 next;
                    341:             } elsif ($line eq 'Parsing RPM database...') {
                    342:                 next;
                    343:             } elsif ($line  =~ /^Catalog\s+\|\s+Name\s+\|\s+Version\s+\|\s+Category\s+\|\s+Status$/) {
                    344:                 $header = $line."\n";
                    345:                 next;
                    346:             } elsif ($line =~ /^[-+]+$/) {
                    347:                 $header .= $line."\n";
                    348:                 next;
                    349:             } elsif ($line eq 'WARNING: These are only the updates affecting the updater itself.') {
                    350:                 next;
                    351:             } elsif ($line eq 'There are others available too.') {
                    352:                 next;
                    353:             } else {
                    354:                 push(@clean_output,$line);
                    355:             }
                    356:         }
                    357:         if (@clean_output > 0) {
                    358:             open(TMPFILE,">>$tmpfile");
                    359:             my $message = join("\n",@clean_output);
                    360:             print TMPFILE $header.$message;
                    361:             close(TMPFILE);
                    362:             $append_to_subj= ' RPMS to upgrade';
                    363:             $sendflag = 1;
                    364:         }
                    365:     } else {
                    366:         $append_to_subj = ' Error running RPM update check';
                    367:         $sendflag = 1;
                    368:     }
                    369:     return ($sendflag,$append_to_subj);
                    370: }
                    371: 
1.11      raeburn   372: sub check_with_apt {
                    373:     my ($tmpfile) = @_;
                    374:     my $apt = '/usr/bin/apt-get';
                    375:     my $sendflag = 0;
                    376:     my $append_to_subj;
                    377:     my $header;
                    378:     my @chg_package;
                    379:     #
                    380:     # Execute apt-get command to update distributions
                    381:     system ("$apt update > /dev/null");
                    382:     my $returnvalue = $?>>8;
                    383:     if ($returnvalue == 0) {
                    384:         # Execute apt-get commands to check for upgrades
                    385:         if (open (PIPE, "$apt -y --dry-run upgrade  2>&1 |")) {
                    386:             my @output=<PIPE>;
                    387:             close(PIPE);
                    388:             chomp(@output);
                    389:             foreach my $line (@output) {
                    390:                 $line =~ s/^\s+//;
                    391:                 my @items = split(/\s+/,$line);
                    392:                 if ($items[0] eq "Inst") {
                    393:                     push(@chg_package,$items[1]);
                    394:                 }
                    395:             }
                    396:             if (@chg_package > 0) {
                    397:                 $header = 'apt-get upgrade found the following packages need updating:'.
                    398:                           "\n\n";
                    399:                 open(TMPFILE,">>$tmpfile");
                    400:                 my $message = join("\n",@output);
                    401:                 print TMPFILE $header.$message;
                    402:                 close(TMPFILE);
                    403:                 $append_to_subj= ' deb packages to upgrade';
                    404:                 $sendflag = 1;
                    405:             }
                    406:         } else {
                    407:             $append_to_subj = ' Error running deb upgrade check';
                    408:             $sendflag = 1;
                    409:         }
                    410:     } else {
                    411:         $append_to_subj = ' Error running deb update check';
                    412:         $sendflag = 1;
                    413:     }
                    414:     return ($sendflag,$append_to_subj);
                    415: }
                    416: 
1.1       raeburn   417: sub check_with_checkrpms {
                    418:     my ($tmpfile,$perlvar) = @_;
                    419:     my $checkrpms = '/usr/local/bin/check-rpms';
                    420:     my $sendflag = 0;
                    421:     my $append_to_subj;
                    422: 
                    423:     # Run Martin Seigert's checkrpms script.  See
                    424:     # See http://www.sfu.ca/acs/security/linux/check-rpms.html 
                    425:     # for more information.
                    426: 
                    427:     #
                    428:     # Check that checkrpms is installed and is the proper version...
                    429:     if (! -e $checkrpms) {
                    430:        open(TMPFILE,">>$tmpfile");
                    431:        print TMPFILE <<END;
                    432: 
                    433: Unable to locate check-rpms on your system.  Please go to
                    434: http://www.sfu.ca/acs/security/linux/check-rpms.html, download and
                    435: install check-rpms on this system.
                    436: 
                    437: END
                    438:         $append_to_subj = ' Error running RPM update check';
                    439:         $sendflag = 1; 
                    440:     } else {
                    441:         #
                    442:         # Run check-rpms and capture its output
                    443:         if (open (PIPE, "$checkrpms 2>&1 |")) {
                    444:             my $output=<PIPE>;
                    445:             close(PIPE);
                    446:             if ($output ne '') {
                    447:                 $output = <<"END";
                    448: 
                    449: checkrpms checked the status of the packages on your system and
                    450: produced the following output:
                    451: -------------------------------------------------------
                    452: $output
                    453: -------------------------------------------------------
                    454: If there are rpms which need to be installed, please log into
                    455: $perlvar->{'lonHostID'} and run the following command
                    456: 
                    457: $checkrpms --update
                    458: 
                    459: If there are kernel packages to be installed, use
                    460: 
                    461: $checkrpms --update --install-kernel
                    462: 
                    463: Keeping your system up to date is very important.
                    464: Ensuring you are using up to date software is a prerequisite for a
                    465: secure system.
                    466: 
                    467: END
                    468:                 open(TMPFILE,">>$tmpfile");
                    469:                 print TMPFILE $output;
                    470:                 close(TMPFILE);
                    471:                 $append_to_subj = ' RPMS to upgrade';
                    472:                 $sendflag = 1; 
                    473:             }
                    474:         }
                    475:     }
                    476:     return ($sendflag,$append_to_subj);
                    477: }

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