Annotation of loncom/misc/checkforupdates.pl, revision 1.3
1.1 raeburn 1: #!/usr/bin/perl
2: # The LearningOnline Network
3: #
1.3 ! raeburn 4: # $Id: checkforupdates.pl,v 1.2 2013/02/14 14:18:27 raeburn Exp $
1.1 raeburn 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #################################################
29:
30: =pod
31:
32: =head1 NAME
33:
34: checkforupdates.pl
35:
36: =head1 SYNOPSIS
37:
38: checkforupdates.pl gathers version numbers and computes checksums
39: for LON-CAPA modules, scripts, and a couple of configuration files,
40: and compares them with those expected for the version of LON-CAPA
41: installed on the server.
42:
43: =head1 DESCRIPTION
44:
45: If there are discrepancies in checksums between the installed modules
46: and those expected, or if there are problems performing the update check,
47: or if a newer stable release of LON-CAPA is available, an e-mail will be
48: sent to the e-mail address configured to receive these types of alert.
49:
50: Run as www.
51:
52: =cut
53:
54: #################################################
55:
56: use strict;
57: use lib '/home/httpd/lib/perl/';
58: use Apache::lonnet();
59: use Apache::lonlocal();
60: use LONCAPA::Configuration;
61: use LONCAPA::Checksumming;
62: use Apache::loncommon();
63:
64: my $perlvar= LONCAPA::Configuration::read_conf('loncapa.conf');
65:
66: my ($londaemons,$lonlib,$lonincludes,$lontabdir,$lonhost,$defdom,$origmail,
67: $docroot);
68: if (ref($perlvar) eq 'HASH') {
69: $londaemons = $perlvar->{'lonDaemons'};
70: $lonlib = $perlvar->{'lonLib'};
71: $lonincludes = $perlvar->{'lonIncludes'};
72: $lontabdir = $perlvar->{'lonTabDir'};
73: $lonhost = $perlvar->{'lonHostID'};
74: $defdom = $perlvar->{'lonDefDomain'};
75: $origmail = $perlvar->{'lonAdmEMail'};
76: $docroot = $perlvar->{'lonDocRoot'};
77: }
78: undef($perlvar);
79:
80: &Apache::lonlocal::get_language_handle();
81:
82: my ($distro,$send,$message);
83:
84: my $loncaparev = &Apache::lonnet::get_server_loncaparev($defdom);
85: my ($version,$timestamp) = split(/\-/,$loncaparev);
86: if ($loncaparev =~ /CVS_HEAD/) {
1.3 ! raeburn 87: $message = &Apache::lonlocal::mt('Code checking unavailable for LON-CAPA CVS HEAD')."\n";
1.1 raeburn 88: } else {
89: # Get Linux distro
90: if (open(PIPE, "$londaemons/distprobe |")) {
91: $distro = <PIPE>;
92: close(PIPE);
93: }
94:
95: if ($distro) {
96: my ($serversums,$serverversions) =
97: &LONCAPA::Checksumming::get_checksums($distro,$londaemons,$lonlib,
98: $lonincludes,$lontabdir);
99: if ((ref($serversums) eq 'HASH') && (ref($serverversions) eq 'HASH')) {
100: if (keys(%{$serversums}) > 0) {
101: my ($result,$numchg) =
102: &LONCAPA::Checksumming::compare_checksums('mail',$lonhost,
103: $version,
104: $serversums,
105: $serverversions);
106: if ($numchg) {
107: $send = 1;
108: }
109: $message = $result;
110: } else {
111: $message = &Apache::lonlocal::mt('No comparison attempted - failed to retrieve checksums for installed files.');
112: }
113: } else {
114: $message = &Apache::lonlocal::mt('No comparison attempted - failed to retrieve checksums for installed files.');
115: }
116: } else {
117: $message = &Apache::lonlocal::mt('No comparison attempted - unable to determine Linux distribution.');
118: }
119:
120: my ($update_toprod,$update_totest);
121: my ($smajor,$sminor,$sdecimal,$smodifier) =
122: ($version =~ /^(\d+)\.(\d+)\.(\d+)\.?(\w*)$/);
123: my ($production,$proddate,$testing,$testdate) = &latest_release();
124: my ($pmajor,$pminor,$pdecimal,$pmodifier) =
125: ($production =~ /^(\d+)\.(\d+)\.(\d+)\.?(\w*)$/);
126: if ($smodifier =~ /^RC(\d+)$/) {
127: my $scand = $1;
128: my ($tmajor,$tminor,$tdecimal,$tmodifier) =
129: ($testing =~ /^(\d+)\.(\d+)\.(\d+)\.?(\w*)$/);
130: my $tcand;
131: if ($tmodifier =~ /^RC(\d+)$/) {
132: $tcand = $1;
133: }
134: if (($smajor < $tmajor ) ||
135: (($smajor == $tmajor) && ($sminor < $tminor)) ||
136: (($smajor == $tmajor) && ($sminor == $tminor) &&
137: ($sdecimal < $tdecimal)) ||
138: ((($smajor == $tmajor) && ($sminor == $tminor) &&
139: ($sdecimal == $tdecimal) &&
140: (($scand && $tcand) && ($scand < $tcand))))) {
141: $update_totest = $testing;
142: }
143: }
144: if (($smajor < $pmajor ) ||
145: (($smajor == $pmajor) && ($sminor < $pminor)) ||
146: (($smajor == $pmajor) && ($sminor == $pminor) &&
147: ($sdecimal < $pdecimal))) {
148: $update_toprod = $production;
149: }
150: if ($update_totest) {
151: $message .=
152: "\n\n".
153: &Apache::lonlocal::mt('A newer testing version of LON-CAPA: [_1]'.
154: ' is available from: [_2]',
155: $testing.'-'.$testdate,
156: "\n http://install.loncapa.org/\n");
157: }
158: if ($update_toprod) {
159: $message .=
160: "\n\n".
161: &Apache::lonlocal::mt('A newer version of LON-CAPA: [_1]'.
162: ' is available from: [_2]',
163: $production.'-'.$proddate,
164: "\n http://install.loncapa.org/\n");
165: }
1.2 raeburn 166: }
167:
168: if ($docroot ne '') {
169: if (open(my $fh,">$docroot/lon-status/checkLCupdates.txt")) {
170: print $fh
1.1 raeburn 171: &Apache::lonlocal::mt('Update check result -- [_1]',
172: &Apache::lonlocal::locallocaltime(time)).
173: "\n\n".
174: $message;
1.2 raeburn 175: close($fh);
1.1 raeburn 176: system("chown www:www $docroot/lon-status/checkLCupdates.txt");
1.2 raeburn 177: chmod(0600,"$docroot/lon-status/checkLCupdates.txt");
1.1 raeburn 178:
1.2 raeburn 179: if ($send) {
180: # Determine who receives the e-mail
181: my $emailto =
182: &Apache::loncommon::build_recipient_list(undef,'updatesmail',
183: $defdom,$origmail);
184: if ($emailto) {
185: my $subj = "LON-CAPA module check -- $lonhost";
186: if (-e "$docroot/lon-status/checkLCupdates.txt") {
187: system(qq{mail -s '$subj' "$emailto" < $docroot/lon-status/checkLCupdates.txt});
188: }
189: }
190: }
1.1 raeburn 191: }
192: }
193:
194: exit;
195:
196: sub latest_release {
197: my ($production,$proddate,$testing,$testdate);
198: if (-e "/tmp/latestLCrelease.txt") {
199: unlink("/tmp/latestLCrelease.txt");
200: }
201: my $rtncode = system("wget -O /tmp/latestLCrelease.txt ".
202: "http://install.loncapa.org/versions/latest.txt ".
203: "> /dev/null 2>&1");
204: if (!$rtncode) {
205: if (open(my $fh,"</tmp/latestLCrelease.txt")) {
206: my @info = <$fh>;
207: close($fh);
208: foreach my $line (@info) {
209: chomp($line);
210: if ($line =~ /^\QLATEST-IS: \E([\w\-.]+):\d+$/) {
211: $production = $1;
212: } elsif ($line =~ /^\QLASTRELPROD: \E(\d+)$/) {
213: $proddate = $1;
214: } elsif ($line =~ /^\QLATEST-TESTING-IS: \E([\w\-.]+):\d+$/) {
215: $testing = $1;
216: } elsif ($line =~ /^\QLASTRELTEST: \E(\d+)$/) {
217: $testdate = $1;
218: }
219: }
220: }
221: }
222: return ($production,$proddate,$testing,$testdate);
223: }
224:
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