Annotation of loncom/build/CHECKRPMS, revision 1.4
1.1 raeburn 1: #!/usr/bin/perl -w
2: #
3: # The LearningOnline Network with CAPA
4: # Checks status of RPM packages on system.
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: =pod
30:
31: =head1 NAME
32:
33: B<CHECKRPMS> - automated status report about RPMs on a system.
34:
35: =head1 DESCRIPTION
36:
37: This file automates the process of checking for available updates
38: to LON-CAPA systems. distprobe is used to determine the Linux distribution.
39:
40: The utility which is used to complete the check depends on the distro:
41:
42: fedora - yum
43: suse 9.X and sles9 - you
44: suse 10.X and sles10 - rug
45: rhel 4 - up2date
46: others - check-rpms
47:
48: Created by amalgamating previous distribution-specific CHECKRPMS.dist files (where dist was one of: fedora, rhel, suse, sles10, default).
49:
50: Must be run as root or www.
51:
52: =cut
53:
54: use strict;
55: use lib '/home/httpd/lib/perl/';
56: use LONCAPA::Configuration;
57:
58: my $tmpfile = '/tmp/CHECKRPMS.'.$$;
59: my $perlvar= LONCAPA::Configuration::read_conf('loncapa.conf');
60:
61: # Determine who we email
62: my $emailto = "$perlvar->{'lonAdmEMail'}";
63: my $subj = $perlvar->{'lonHostID'};
64:
65: # Get Linux distro
66: open(PIPE, "$perlvar->{'lonDaemons'}/distprobe |");
67: my $distro = <PIPE>;
68: close(PIPE);
69:
70: undef($perlvar);
71:
72: my $hostname = `hostname`;
73: chomp($hostname);
74: open(TMPFILE,">$tmpfile");
75: print TMPFILE localtime(time).' '.$hostname."\n";
76: close(TMPFILE);
77:
78: my ($cmd,$send,$addsubj);
79: if ($distro =~ /^fedora\d+$/) {
80: $cmd = 'yum update';
81: &prepare_msg($tmpfile,$cmd);
82: ($send,$addsubj) = &check_with_yum($tmpfile);
83: } elsif ($distro =~ /^(suse|sles)9\.\d$/) {
84: $cmd = 'you';
85: &prepare_msg($tmpfile,$cmd);
86: ($send,$addsubj) = &check_with_you($tmpfile);
87: } elsif ($distro =~ /^(suse|sles)10\.?\d?$/) {
88: $cmd = 'rug up';
89: &prepare_msg($tmpfile,$cmd);
90: ($send,$addsubj) = &check_with_rug($tmpfile);
91: } elsif ($distro =~ /^rhes4$/) {
92: $cmd ='up2date -u --nox';
93: &prepare_msg($tmpfile,$cmd);
94: ($send,$addsubj) = &check_with_up2date($tmpfile);
95: } else {
96: $cmd = '/usr/local/bin/check-rpms --update';
97: ($send,$addsubj) = &check_with_checkrpms($tmpfile);
98: }
99: if ($send) {
100: $subj .= $addsubj;
101: system(qq{mail -s '$subj' $emailto < $tmpfile});
102: }
103:
104: sub prepare_msg {
105: my ($tmpfile,$cmd) = @_;
106: #
107: # Put some nice text in $tmpfile
108: open(TMPFILE,">>$tmpfile");
109: print TMPFILE <<ENDHEADER;
110: Your system needs to be updated. Please execute (as root)
111:
112: $cmd
113:
114: to bring it up to date.
115:
116: This is very important for the security of your server. The table below lists the packages which need to be updated.
117:
118: ENDHEADER
119: close(TMPFILE);
120: return;
121: }
122:
123: sub check_with_you {
124: my ($tmpfile) =@_;
125: my $you = '/usr/bin/online_update';
126: my $sendflag = 0;
127: my $append_to_subj;
128:
129: if (open (PIPE, "$you -d -k -l en 2>&1 |")) {
130: my $output=<PIPE>;
131: close(PIPE);
132: chomp $output;
133: unless ($output eq 'No updates available.') {
134: my $command = $you.' -s -k -l en |grep ^[^I] >>'.$tmpfile;
135: system($command);
136: $sendflag = 1;
137: $append_to_subj = ' RPMS to upgrade';
138: }
139: } else {
140: $sendflag = 1;
141: $append_to_subj = ' Error running RPM update script';
142: }
143: return ($sendflag,$append_to_subj);
144: }
145:
146: sub check_with_yum {
147: my ($tmpfile) = @_;
148: my $yum = '/usr/bin/yum';
149: my $sendflag = 0;
150: my $append_to_subj;
151:
152: #
153: # Execute yum command
154: my $command = $yum.' check-update '.'>>'.$tmpfile;
155: system($command);
156:
157: my $returnvalue = $?>>8;
158:
159: #
160: # Determine status of yum run
161: if (100 == $returnvalue) {
162: $sendflag = 1;
163: $append_to_subj = ' RPMS to upgrade';
164: } elsif (0 != $returnvalue) {
165: $sendflag = 1;
166: $append_to_subj = ' Error running RPM update script';
167: } else {
168: # yum returned 0, so everything is up to date.
169: }
170: return ($sendflag,$append_to_subj);
171: }
172:
173: sub check_with_up2date {
174: my ($tmpfile) = @_;
175: my $up2date = '/usr/bin/up2date-nox';
176: my $sendflag = 0;
177: my $append_to_subj;
178: #
179: # Execute online_update command to check for updates
180: my $up2date_error = 1;
181: if (open (PIPE, "$up2date -l 2>&1 |")) {
182: my @result=<PIPE>;
183: close(PIPE);
1.4 ! raeburn 184: my $output;
! 185: foreach my $line (@result) {
! 186: if ($line =~ /^The following Packages were marked to be skipped by your configuration:/) {
! 187: last;
! 188: } else {
! 189: $output .= $line;
! 190: }
! 191: }
1.1 raeburn 192: if (@result > 0) {
193: if ($output =~ /Fetching Obsoletes list/) {
194: $up2date_error = 0;
195: if ($output =~ /Name\s+Version\s+Rel\s+[\n\r\f]+\-+[\n\r\f]+(.+)/s) {
196: my $packagelist = $1;
1.4 ! raeburn 197: if ($packagelist ne '' && $packagelist !~ /^[\s\n\r\f]+$/) {
1.1 raeburn 198: open(TMPFILE,">>$tmpfile");
199: print TMPFILE $packagelist;
200: close(TMPFILE);
201: $append_to_subj = ' RPMS to upgrade';
202: $sendflag = 1;
203: }
204: }
205: }
206: }
207: }
208: if ($up2date_error) {
209: $append_to_subj = ' Error running RPM update script';
210: $sendflag = 1;
211: }
212: return ($sendflag,$append_to_subj);
213: }
214:
215: sub check_with_rug {
216: my ($tmpfile) = @_;
217: my $rug = '/usr/bin/rug';
218: my $sendflag = 0;
219: my $append_to_subj;
220: #
221: # Execute rug command to check for updates
222: if (open (PIPE, "$rug up -N 2>&1 |")) {
223: my @output=<PIPE>;
224: close(PIPE);
225: chomp(@output);
226: my @clean_output;
227: foreach my $line (@output) {
1.3 raeburn 228: if ($line =~ /^Waking\sup\sZMD\.\.\./) {
1.1 raeburn 229: next;
1.2 raeburn 230: } elsif ($line eq 'Done') {
231: next;
232: } elsif ($line eq '') {
233: next;
234: } elsif ($line eq 'The following packages will be installed:') {
235: next;
236: } elsif ($line eq 'Resolving Dependencies...') {
237: next;
238: } elsif ($line eq 'Transaction...') {
239: last;
240: } elsif ($line eq 'No updates are available.') {
1.1 raeburn 241: last;
242: } else {
243: push(@clean_output,$line);
244: }
245: }
246: if (@clean_output > 0) {
247: open(TMPFILE,">>$tmpfile");
248: print TMPFILE join("\n",@clean_output);
249: close(TMPFILE);
250: $append_to_subj= ' RPMS to upgrade';
251: $sendflag = 1;
252: }
253: } else {
254: $append_to_subj = ' Error running RPM update check';
255: $sendflag = 1;
256: }
257: return ($sendflag,$append_to_subj);
258: }
259:
260: sub check_with_checkrpms {
261: my ($tmpfile,$perlvar) = @_;
262: my $checkrpms = '/usr/local/bin/check-rpms';
263: my $sendflag = 0;
264: my $append_to_subj;
265:
266: # Run Martin Seigert's checkrpms script. See
267: # See http://www.sfu.ca/acs/security/linux/check-rpms.html
268: # for more information.
269:
270: #
271: # Check that checkrpms is installed and is the proper version...
272: if (! -e $checkrpms) {
273: open(TMPFILE,">>$tmpfile");
274: print TMPFILE <<END;
275:
276: Unable to locate check-rpms on your system. Please go to
277: http://www.sfu.ca/acs/security/linux/check-rpms.html, download and
278: install check-rpms on this system.
279:
280: END
281: $append_to_subj = ' Error running RPM update check';
282: $sendflag = 1;
283: } else {
284: #
285: # Run check-rpms and capture its output
286: if (open (PIPE, "$checkrpms 2>&1 |")) {
287: my $output=<PIPE>;
288: close(PIPE);
289: if ($output ne '') {
290: $output = <<"END";
291:
292: checkrpms checked the status of the packages on your system and
293: produced the following output:
294: -------------------------------------------------------
295: $output
296: -------------------------------------------------------
297: If there are rpms which need to be installed, please log into
298: $perlvar->{'lonHostID'} and run the following command
299:
300: $checkrpms --update
301:
302: If there are kernel packages to be installed, use
303:
304: $checkrpms --update --install-kernel
305:
306: Keeping your system up to date is very important.
307: Ensuring you are using up to date software is a prerequisite for a
308: secure system.
309:
310: END
311: open(TMPFILE,">>$tmpfile");
312: print TMPFILE $output;
313: close(TMPFILE);
314: $append_to_subj = ' RPMS to upgrade';
315: $sendflag = 1;
316: }
317: }
318: }
319: return ($sendflag,$append_to_subj);
320: }
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