1: #!/usr/bin/perl
2:
3: # Housekeeping program, started by cron, loncontrol and loncron.pl
4: #
5: # $Id: loncron,v 1.103.2.15 2024/07/10 04:11:41 raeburn Exp $
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29:
30: $|=1;
31: use strict;
32:
33: use lib '/home/httpd/lib/perl/';
34: use LONCAPA::Configuration;
35: use LONCAPA::Checksumming;
36: use LONCAPA;
37: use Apache::lonnet;
38: use Apache::loncommon;
39:
40: use LWP::UserAgent();
41: use HTTP::Request();
42: use IO::File;
43: use IO::Socket;
44: use HTML::Entities;
45: use Getopt::Long;
46: use GDBM_File qw(GDBM_READER);
47: use Storable qw(thaw);
48: use File::ReadBackwards;
49: use File::Copy;
50: use Sys::Hostname::FQDN();
51:
52: #globals
53: use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount);
54:
55: my $statusdir="/home/httpd/html/lon-status";
56:
57:
58: # --------------------------------------------------------- Output error status
59:
60: sub log {
61: my $fh=shift;
62: if ($fh) { print $fh @_ }
63: }
64:
65: sub errout {
66: my $fh=shift;
67: &log($fh,(<<ENDERROUT));
68: <table border="2" bgcolor="#CCCCCC">
69: <tr><td>Notices</td><td>$notices</td></tr>
70: <tr><td>Warnings</td><td>$warnings</td></tr>
71: <tr><td>Errors</td><td>$errors</td></tr>
72: </table><p><a href="#top">Top</a></p>
73: ENDERROUT
74: }
75:
76: sub rotate_logfile {
77: my ($file,$fh,$description) = @_;
78: my $size=(stat($file))[7];
79: if ($size>40000) {
80: &log($fh,"<p>Rotating $description ...</p>");
81: rename("$file.2","$file.3");
82: rename("$file.1","$file.2");
83: rename("$file","$file.1");
84: }
85: }
86:
87: sub start_daemon {
88: my ($fh,$daemon,$pidfile,$args) = @_;
89: my $progname=$daemon;
90: if ($daemon eq 'lonc') {
91: $progname='loncnew';
92: }
93: my $error_fname="$perlvar{'lonDaemons'}/logs/${daemon}_errors";
94: &rotate_logfile($error_fname,$fh,'error logs');
95: if ($daemon eq 'lonc') {
96: &clean_sockets($fh);
97: }
98: system("$perlvar{'lonDaemons'}/$progname 2>$perlvar{'lonDaemons'}/logs/${daemon}_errors");
99: sleep 1;
100: if (-e $pidfile) {
101: &log($fh,"<p>Seems like it started ...</p>");
102: my $lfh=IO::File->new("$pidfile");
103: my $daemonpid=<$lfh>;
104: chomp($daemonpid);
105: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
106: return 1;
107: } else {
108: return 0;
109: }
110: }
111: &log($fh,"<p>Seems like that did not work!</p>");
112: $errors++;
113: return 0;
114: }
115:
116: sub checkon_daemon {
117: my ($fh,$daemon,$maxsize,$send,$args)=@_;
118:
119: my $result;
120: &log($fh,'<hr /><a name="'.$daemon.'" /><h2>'.$daemon.'</h2><h3>Log</h3><p style="white-space: pre;"><tt>');
121: printf("%-15s ",$daemon);
122: if ($fh) {
123: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
124: if (open(DFH,"tail -n25 $perlvar{'lonDaemons'}/logs/$daemon.log|")) {
125: while (my $line=<DFH>) {
126: &log($fh,"$line");
127: if ($line=~/INFO/) { $notices++; }
128: if ($line=~/WARNING/) { $notices++; }
129: if ($line=~/CRITICAL/) { $warnings++; }
130: }
131: close (DFH);
132: }
133: }
134: &log($fh,"</tt></p>");
135: }
136:
137: my $pidfile="$perlvar{'lonDaemons'}/logs/$daemon.pid";
138:
139: my $restartflag=1;
140: my $daemonpid;
141: if (-e $pidfile) {
142: my $lfh=IO::File->new("$pidfile");
143: $daemonpid=<$lfh>;
144: chomp($daemonpid);
145: if ($daemonpid =~ /^\d+$/ && kill 0 => $daemonpid) {
146: &log($fh,"<h3>$daemon at pid $daemonpid responding");
147: if ($send) { &log($fh,", sending $send"); }
148: &log($fh,"</h3>");
149: if ($send eq 'USR1') { kill USR1 => $daemonpid; }
150: if ($send eq 'USR2') { kill USR2 => $daemonpid; }
151: $restartflag=0;
152: if ($send eq 'USR2') {
153: $result = 'reloaded';
154: print "reloaded\n";
155: } else {
156: $result = 'running';
157: print "running\n";
158: }
159: } else {
160: $errors++;
161: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
162: $restartflag=1;
163: &log($fh,"<h3>Decided to clean up stale .pid file and restart $daemon</h3>");
164: }
165: }
166: if ($restartflag==1) {
167: $simplestatus{$daemon}='off';
168: $errors++;
169: my $kadaemon=$daemon;
170: if ($kadaemon eq 'lonmemcached') { $kadaemon='memcached'; }
171: &log($fh,'<br /><font color="red">Killall '.$daemon.': '.
172: `killall $kadaemon 2>&1`.' - ');
173: sleep 1;
174: &log($fh,unlink($pidfile).' - '.
175: `killall -9 $kadaemon 2>&1`.
176: '</font><br />');
177: &log($fh,"<h3>$daemon not running, trying to start</h3>");
178:
179: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
180: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
181: $simplestatus{$daemon}='restarted';
182: $result = 'started';
183: print "started\n";
184: } else {
185: $errors++;
186: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
187: &log($fh,"<p>Give it one more try ...</p>");
188: print " ";
189: if (&start_daemon($fh,$daemon,$pidfile,$args)) {
190: &log($fh,"<h3>$daemon at pid $daemonpid responding</h3>");
191: $simplestatus{$daemon}='restarted';
192: $result = 'started';
193: print "started\n";
194: } else {
195: $result = 'failed';
196: print " failed\n";
197: $simplestatus{$daemon}='failed';
198: $errors++; $errors++;
199: &log($fh,"<h3>$daemon at pid $daemonpid not responding</h3>");
200: &log($fh,"<p>Unable to start $daemon</p>");
201: }
202: }
203: if ($fh) {
204: if (-e "$perlvar{'lonDaemons'}/logs/$daemon.log"){
205: &log($fh,"<p><pre>");
206: if (open(DFH,"tail -n100 $perlvar{'lonDaemons'}/logs/$daemon.log|")) {
207: while (my $line=<DFH>) {
208: &log($fh,"$line");
209: if ($line=~/WARNING/) { $notices++; }
210: if ($line=~/CRITICAL/) { $notices++; }
211: }
212: close (DFH);
213: }
214: &log($fh,"</pre></p>");
215: }
216: }
217: }
218:
219: my $fname="$perlvar{'lonDaemons'}/logs/$daemon.log";
220: &rotate_logfile($fname,$fh,'logs');
221:
222: &errout($fh);
223: return $result;
224: }
225:
226: # --------------------------------------------------------------------- Machine
227: sub log_machine_info {
228: my ($fh)=@_;
229: &log($fh,'<hr /><a name="machine" /><h2>Machine Information</h2>');
230: &log($fh,"<h3>loadavg</h3>");
231:
232: my $cpucount;
233: if (open(PIPE,"lscpu |grep '^CPU(s)' 2>&1 |")) {
234: my $info = <PIPE>;
235: chomp($info);
236: ($cpucount) = ($info =~ /^\QCPU(s):\E\s+(\d+)$/);
237: close(PIPE);
238: }
239: if (!$cpucount) {
240: $cpucount = 1;
241: }
242: my %loadtarget = (
243: error => 4.0*$cpucount,
244: warn => 2.0*$cpucount,
245: note => 1.0*$cpucount,
246: );
247: open (LOADAVGH,"/proc/loadavg");
248: my $loadavg=<LOADAVGH>;
249: close (LOADAVGH);
250:
251: &log($fh,"<tt>$loadavg</tt>");
252:
253: my @parts=split(/\s+/,$loadavg);
254: if ($parts[1]>$loadtarget{'error'}) {
255: $errors++;
256: } elsif ($parts[1]>$loadtarget{'warn'}) {
257: $warnings++;
258: } elsif ($parts[1]>$loadtarget{'note'}) {
259: $notices++;
260: }
261:
262: &log($fh,"<h3>df</h3>");
263: &log($fh,"<pre>");
264:
265: open (DFH,"df|");
266: while (my $line=<DFH>) {
267: &log($fh,&encode_entities($line,'<>&"'));
268: @parts=split(/\s+/,$line);
269: my $usage=$parts[4];
270: $usage=~s/\W//g;
271: if ($usage>90) {
272: $warnings++;
273: $notices++;
274: } elsif ($usage>80) {
275: $warnings++;
276: } elsif ($usage>60) {
277: $notices++;
278: }
279: if ($usage>95) { $warnings++; $warnings++; $simplestatus{'diskfull'}++; }
280: }
281: close (DFH);
282: &log($fh,"</pre>");
283:
284:
285: &log($fh,"<h3>ps</h3>");
286: &log($fh,"<pre>");
287: my $psproc=0;
288:
289: open (PSH,"ps aux --cols 140 |");
290: while (my $line=<PSH>) {
291: &log($fh,&encode_entities($line,'<>&"'));
292: $psproc++;
293: }
294: close (PSH);
295: &log($fh,"</pre>");
296:
297: if ($psproc>200) { $notices++; }
298: if ($psproc>250) { $notices++; }
299:
300: &log($fh,"<h3>distprobe</h3>");
301: &log($fh,"<pre>");
302: &log($fh,&encode_entities(&LONCAPA::distro(),'<>&"'));
303: &log($fh,"</pre>");
304:
305: &errout($fh);
306: }
307:
308: sub start_logging {
309: my $fh=IO::File->new(">$statusdir/newstatus.html");
310: my %simplestatus=();
311: my $now=time;
312: my $date=localtime($now);
313:
314:
315: &log($fh,(<<ENDHEADERS));
316: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
317: <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
318: <head>
319: <title>LON Status Report $perlvar{'lonHostID'}</title>
320: <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
321: </head>
322: <body bgcolor="#AAAAAA">
323: <a name="top" />
324: <h1>LON Status Report $perlvar{'lonHostID'}</h1>
325: <h2>$date ($now)</h2>
326: <ol>
327: <li><a href="#configuration">Configuration</a></li>
328: <li><a href="#machine">Machine Information</a></li>
329: <li><a href="#tmp">Temporary Files</a></li>
330: <li><a href="#tokens">Session Tokens</a></li>
331: <li><a href="#webdav">WebDAV Session Tokens</a></li>
332: <li><a href="#httpd">httpd</a></li>
333: <li><a href="#lonsql">lonsql</a></li>
334: <li><a href="#lond">lond</a></li>
335: <li><a href="#lonc">lonc</a></li>
336: <li><a href="#lonnet">lonnet</a></li>
337: <li><a href="#connections">Connections</a></li>
338: <li><a href="#bashconf">bash readline config</a></li>
339: <li><a href="#delayed">Delayed Messages</a></li>
340: <li><a href="#errcount">Error Count</a></li>
341: </ol>
342: <hr />
343: <a name="configuration" />
344: <h2>Configuration</h2>
345: <h3>PerlVars</h3>
346: <table border="2">
347: ENDHEADERS
348:
349: foreach my $varname (sort(keys(%perlvar))) {
350: &log($fh,"<tr><td>$varname</td><td>".
351: &encode_entities($perlvar{$varname},'<>&"')."</td></tr>\n");
352: }
353: &log($fh,"</table><h3>Hosts</h3><table border='2'>");
354: my %hostname = &Apache::lonnet::all_hostnames();
355: foreach my $id (sort(keys(%hostname))) {
356: my $role = (&Apache::lonnet::is_library($id) ? 'library'
357: : 'access');
358: &log($fh,
359: "<tr><td>$id</td><td>".&Apache::lonnet::host_domain($id).
360: "</td><td>".$role.
361: "</td><td>".&Apache::lonnet::hostname($id)."</td></tr>\n");
362: }
363: &log($fh,"</table><h3>Spare Hosts</h3>");
364: if (keys(%Apache::lonnet::spareid) > 0) {
365: &log($fh,"<ul>");
366: foreach my $type (sort(keys(%Apache::lonnet::spareid))) {
367: &log($fh,"<li>$type\n<ol>");
368: foreach my $id (@{ $Apache::lonnet::spareid{$type} }) {
369: &log($fh,"<li>$id</li>\n");
370: }
371: &log($fh,"</ol>\n</li>\n");
372: }
373: &log($fh,"</ul>\n");
374: } else {
375: &log($fh,"No spare hosts specified<br />\n");
376: }
377: return $fh;
378: }
379:
380: # --------------------------------------------------------------- clean out tmp
381: sub clean_tmp {
382: my ($fh)=@_;
383: &log($fh,'<hr /><a name="tmp" /><h2>Temporary Files</h2>');
384: my ($cleaned,$old,$removed) = (0,0,0);
385: my %errors = (
386: dir => [],
387: file => [],
388: failopen => [],
389: );
390: my %error_titles = (
391: dir => 'failed to remove empty directory:',
392: file => 'failed to unlike stale file',
393: failopen => 'failed to open file or directory'
394: );
395: ($cleaned,$old,$removed) = &recursive_clean_tmp('',$cleaned,$old,$removed,\%errors);
396: &log($fh,"Cleaned up: ".$cleaned." files; removed: $removed empty directories; (found: $old old checkout tokens)");
397: foreach my $key (sort(keys(%errors))) {
398: if (ref($errors{$key}) eq 'ARRAY') {
399: if (@{$errors{$key}} > 0) {
400: &log($fh,"Error during cleanup ($error_titles{$key}):<ul><li>".
401: join('</li><li><tt>',@{$errors{$key}}).'</tt></li></ul><br />');
402: }
403: }
404: }
405: }
406:
407: sub recursive_clean_tmp {
408: my ($subdir,$cleaned,$old,$removed,$errors) = @_;
409: my $base = "$perlvar{'lonDaemons'}/tmp";
410: my $path = $base;
411: next if ($subdir =~ m{\.\./});
412: next unless (ref($errors) eq 'HASH');
413: unless ($subdir eq '') {
414: $path .= '/'.$subdir;
415: }
416: if (opendir(my $dh,"$path")) {
417: while (my $file = readdir($dh)) {
418: next if ($file =~ /^\.\.?$/);
419: my $fname = "$path/$file";
420: if (-d $fname) {
421: my $innerdir;
422: if ($subdir eq '') {
423: $innerdir = $file;
424: } else {
425: $innerdir = $subdir.'/'.$file;
426: }
427: ($cleaned,$old,$removed) =
428: &recursive_clean_tmp($innerdir,$cleaned,$old,$removed,$errors);
429: my @doms = &Apache::lonnet::current_machine_domains();
430:
431: if (open(my $dirhandle,$fname)) {
432: unless (($innerdir eq 'helprequests') ||
433: (($innerdir =~ /^addcourse/) && ($innerdir !~ m{/\d+$}))) {
434: my @contents = grep {!/^\.\.?$/} readdir($dirhandle);
435: join('&&',@contents)."\n";
436: if (scalar(grep {!/^\.\.?$/} readdir($dirhandle)) == 0) {
437: closedir($dirhandle);
438: if ($fname =~ m{^\Q$perlvar{'lonDaemons'}\E/tmp/}) {
439: if (rmdir($fname)) {
440: $removed ++;
441: } elsif (ref($errors->{dir}) eq 'ARRAY') {
442: push(@{$errors->{dir}},$fname);
443: }
444: }
445: }
446: } else {
447: closedir($dirhandle);
448: }
449: }
450: } else {
451: my ($dev,$ino,$mode,$nlink,
452: $uid,$gid,$rdev,$size,
453: $atime,$mtime,$ctime,
454: $blksize,$blocks)=stat($fname);
455: my $now=time;
456: my $since=$now-$mtime;
457: if ($since>$perlvar{'lonExpire'}) {
458: if ($subdir eq '') {
459: my $line='';
460: if ($fname =~ /\.db$/) {
461: if (unlink($fname)) {
462: $cleaned++;
463: } elsif (ref($errors->{file}) eq 'ARRAY') {
464: push(@{$errors->{file}},$fname);
465: }
466: } elsif (open(PROBE,$fname)) {
467: my $line='';
468: $line=<PROBE>;
469: close(PROBE);
470: if ($line=~/^CHECKOUTTOKEN\&/) {
471: if ($since>365*$perlvar{'lonExpire'}) {
472: if (unlink($fname)) {
473: $cleaned++;
474: } elsif (ref($errors->{file}) eq 'ARRAY') {
475: push(@{$errors->{file}},$fname);
476: }
477: } else {
478: $old++;
479: }
480: } else {
481: if (unlink($fname)) {
482: $cleaned++;
483: } elsif (ref($errors->{file}) eq 'ARRAY') {
484: push(@{$errors->{file}},$fname);
485: }
486: }
487: } elsif (ref($errors->{failopen}) eq 'ARRAY') {
488: push(@{$errors->{failopen}},$fname);
489: }
490: } else {
491: if (unlink($fname)) {
492: $cleaned++;
493: } elsif (ref($errors->{file}) eq 'ARRAY') {
494: push(@{$errors->{file}},$fname);
495: }
496: }
497: }
498: }
499: }
500: closedir($dh);
501: } elsif (ref($errors->{failopen}) eq 'ARRAY') {
502: push(@{$errors->{failopen}},$path);
503: }
504: return ($cleaned,$old,$removed);
505: }
506:
507: # ------------------------------------------------------------ clean out lonIDs
508: sub clean_lonIDs {
509: my ($fh)=@_;
510: &log($fh,'<hr /><a name="tokens" /><h2>Session Tokens</h2>');
511: my $cleaned=0;
512: my $active=0;
513: while (my $fname=<$perlvar{'lonIDsDir'}/*>) {
514: my $now=time;
515: if (-l $fname) {
516: my $linkfname = readlink($fname);
517: if (-f $linkfname) {
518: if ($linkfname =~ m{^$perlvar{'lonIDsDir'}/[^/]+\.id$}) {
519: my @data = stat($linkfname);
520: my $mtime = $data[9];
521: my $since=$now-$mtime;
522: if ($since>$perlvar{'lonExpire'}) {
523: if (unlink($linkfname)) {
524: $cleaned++;
525: &log($fh,"Unlinking $linkfname<br />");
526: unlink($fname);
527: }
528: }
529: }
530: } else {
531: unlink($fname);
532: }
533: } elsif (-f $fname) {
534: my @data = stat($fname);
535: my $mtime = $data[9];
536: my $since=$now-$mtime;
537: if ($since>$perlvar{'lonExpire'}) {
538: if (unlink($fname)) {
539: $cleaned++;
540: &log($fh,"Unlinking $fname<br />");
541: }
542: } else {
543: $active++;
544: }
545: }
546: }
547: &log($fh,"<p>Cleaned up ".$cleaned." stale session token(s).</p>");
548: &log($fh,"<h3>$active open session(s)</h3>");
549: }
550:
551: # -------------------------------------------------------- clean out balanceIDs
552:
553: sub clean_balanceIDs {
554: my ($fh)=@_;
555: &log($fh,'<hr /><a name="balcookies" /><h2>Session Tokens</h2>');
556: my $cleaned=0;
557: my $active=0;
558: if (-d $perlvar{'lonBalanceDir'}) {
559: while (my $fname=<$perlvar{'lonBalanceDir'}/*.id>) {
560: my ($dev,$ino,$mode,$nlink,
561: $uid,$gid,$rdev,$size,
562: $atime,$mtime,$ctime,
563: $blksize,$blocks)=stat($fname);
564: my $now=time;
565: my $since=$now-$mtime;
566: if ($since>$perlvar{'lonExpire'}) {
567: $cleaned++;
568: &log($fh,"Unlinking $fname<br />");
569: unlink("$fname");
570: } else {
571: $active++;
572: }
573: }
574: }
575: &log($fh,"<p>Cleaned up ".$cleaned." stale balancer files</p>");
576: &log($fh,"<h3>$active unexpired balancer files</h3>");
577: }
578:
579: # ------------------------------------------------ clean out webDAV Session IDs
580: sub clean_webDAV_sessionIDs {
581: my ($fh)=@_;
582: if ($perlvar{'lonRole'} eq 'library') {
583: &log($fh,'<hr /><a name="webdav" /><h2>WebDAV Session Tokens</h2>');
584: my $cleaned=0;
585: my $active=0;
586: my $now = time;
587: if (-d $perlvar{'lonDAVsessDir'}) {
588: while (my $fname=<$perlvar{'lonDAVsessDir'}/*>) {
589: my @stats = stat($fname);
590: my $since=$now-$stats[9];
591: if ($since>$perlvar{'lonExpire'}) {
592: $cleaned++;
593: &log($fh,"Unlinking $fname<br />");
594: unlink("$fname");
595: } else {
596: $active++;
597: }
598: }
599: &log($fh,"<p>Cleaned up ".$cleaned." stale webDAV session token(s).</p>");
600: &log($fh,"<h3>$active open webDAV session(s)</h3>");
601: }
602: }
603: }
604:
605: # ----------------------------------------------------------- clean out sockets
606: sub clean_sockets {
607: my ($fh)=@_;
608: my $cleaned=0;
609: opendir(SOCKETS,$perlvar{'lonSockDir'});
610: while (my $fname=readdir(SOCKETS)) {
611: next if (-d $fname
612: || $fname=~/(mysqlsock|maximasock|rsock|\Q$perlvar{'lonSockDir'}\E)/);
613: $cleaned++;
614: &log($fh,"Unlinking $fname<br />");
615: unlink("/home/httpd/sockets/$fname");
616: }
617: &log($fh,"<p>Cleaned up ".$cleaned." stale sockets.</p>");
618: }
619:
620:
621: # ----------------------------------------------------------------------- httpd
622: sub check_httpd_logs {
623: my ($fh)=@_;
624: if (open(PIPE,"./lchttpdlogs|")) {
625: while (my $line=<PIPE>) {
626: &log($fh,$line);
627: if ($line=~/\[error\]/) { $notices++; }
628: }
629: close(PIPE);
630: }
631: &errout($fh);
632: }
633:
634: # ---------------------------------------------------------------------- lonnet
635:
636: sub rotate_lonnet_logs {
637: my ($fh)=@_;
638: &log($fh,'<hr /><a name="lonnet" /><h2>lonnet</h2><h3>Temp Log</h3><pre>');
639: print "Checking logs.\n";
640: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.log"){
641: open (DFH,"tail -n50 $perlvar{'lonDaemons'}/logs/lonnet.log|");
642: while (my $line=<DFH>) {
643: &log($fh,&encode_entities($line,'<>&"'));
644: }
645: close (DFH);
646: }
647: &log($fh,"</pre><h3>Perm Log</h3><pre>");
648:
649: if (-e "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
650: open(DFH,"tail -n10 $perlvar{'lonDaemons'}/logs/lonnet.perm.log|");
651: while (my $line=<DFH>) {
652: &log($fh,&encode_entities($line,'<>&"'));
653: }
654: close (DFH);
655: } else { &log($fh,"No perm log\n") }
656:
657: my $fname="$perlvar{'lonDaemons'}/logs/lonnet.log";
658: &rotate_logfile($fname,$fh,'lonnet log');
659:
660: &log($fh,"</pre>");
661: &errout($fh);
662: }
663:
664: sub rotate_other_logs {
665: my ($fh) = @_;
666: my %logs = (
667: autoenroll => 'Auto Enroll log',
668: autocreate => 'Create Course log',
669: searchcat => 'Search Cataloguing log',
670: autoupdate => 'Auto Update log',
671: refreshcourseids_db => 'Refresh CourseIDs db log',
672: );
673: foreach my $item (keys(%logs)) {
674: my $fname=$perlvar{'lonDaemons'}.'/logs/'.$item.'.log';
675: &rotate_logfile($fname,$fh,$logs{$item});
676: }
677: }
678:
679: # ----------------------------------------------------------------- Connections
680: sub test_connections {
681: my ($fh)=@_;
682: &log($fh,'<hr /><a name="connections" /><h2>Connections</h2>');
683: print "Testing connections.\n";
684: &log($fh,"<table border='2'>");
685: my ($good,$bad)=(0,0);
686: my %hostname = &Apache::lonnet::all_hostnames();
687: foreach my $tryserver (sort(keys(%hostname))) {
688: print(".");
689: my $result;
690: my $answer=&Apache::lonnet::reply("ping",$tryserver);
691: if ($answer eq "$tryserver:$perlvar{'lonHostID'}") {
692: $result="<b>ok</b>";
693: $good++;
694: } else {
695: $result=$answer;
696: $warnings++;
697: if ($answer eq 'con_lost') {
698: $bad++;
699: $warnings++;
700: } else {
701: $good++; #self connection
702: }
703: }
704: if ($answer =~ /con_lost/) { print(" $tryserver down\n"); }
705: &log($fh,"<tr><td>$tryserver</td><td>$result</td></tr>\n");
706: }
707: &log($fh,"</table>");
708: print "\n$good good, $bad bad connections\n";
709: &errout($fh);
710: }
711:
712:
713: # ------------------------------------------------------------ Delayed messages
714: sub check_delayed_msg {
715: my ($fh,$weightsref,$exclusionsref)=@_;
716: &log($fh,'<hr /><a name="delayed" /><h2>Delayed Messages</h2>');
717: print "Checking buffers.\n";
718:
719: &log($fh,'<h3>Scanning Permanent Log</h3>');
720:
721: my $unsend=0;
722: my $ignored=0;
723:
724: my %hostname = &Apache::lonnet::all_hostnames();
725: my $numhosts = scalar(keys(%hostname));
726: my $checkbackwards = 0;
727: my $checkfrom = 0;
728: my $checkexcluded = 0;
729: my (%bymachine,%weights,%exclusions,%serverhomes);
730: if (ref($weightsref) eq 'HASH') {
731: %weights = %{$weightsref};
732: }
733: if (ref($exclusionsref) eq 'HASH') {
734: %exclusions = %{$exclusionsref};
735: if (keys(%exclusions)) {
736: $checkexcluded = 1;
737: %serverhomes = &read_serverhomeIDs();
738: }
739: }
740:
741: #
742: # For LON-CAPA 1.2.0 to 2.1.3 (release dates: 8/31/2004 and 3/31/2006) any
743: # entry logged in lonnet.perm.log for completion of a delayed (critical)
744: # transaction lacked the hostID for the remote node to which the command
745: # to be completed was sent.
746: #
747: # Because of this, exclusion of items in lonnet.perm.log for nodes which are
748: # no longer part of the cluster from adding to the overall "unsend" count
749: # needs additional effort besides the changes made in loncron rev. 1.105.
750: #
751: # For "S" (completion) events logging in LON-CAPA 1.2.0 through 2.1.3 included
752: # "LondTransaction=HASH(hexadecimal)->getClient() :$cmd, where the hexadecimal
753: # is a memory location, and $cmd is the command sent to the remote node.
754: #
755: # Starting with 2.2.0 (released 8/21/2006) logging for "S" (completion) events
756: # had sethost:$host_id:$cmd after LondTransaction=HASH(hexadecimal)->getClient()
757: #
758: # Starting with 2.4.1 (released 6/13/2007) logging for "S" replaced echoing the
759: # getClient() call with the result of the Transaction->getClient() call itself
760: # undef for completion of delivery of a delayed message.
761: #
762: # The net effect of these changes is that lonnet.perm.log is now accessed three
763: # times: (a) oldest record is checked, if earlier than release date for 2.5.0
764: # then (b) file is read backwards, with timestamp recorded for most recent
765: # instance of logged "S" event for "update" command without "sethost:$host_id:"
766: # then (c) file is read forward with records ignored which predate the timestamp
767: # recorded in (b), if one was found.
768: #
769: # In (c), when calculating the unsend total, i.e., the difference between delayed
770: # transactions ("D") and sent transactions ("S"), transactions are ignored if the
771: # target node is no longer in the cluster, and also (for "update" commands), if
772: # the target node is in the list of nodes excluded from the count, in the domain
773: # configuration for this machine's default domain. The idea here is to remove
774: # delayed "update" commands for nodes for which inbound access to port 5663,
775: # is blocked, but are still part of the LON-CAPA network, (i.e., they can still
776: # replicate content from other nodes).
777: #
778:
779: my $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log","r");
780: if (defined($dfh)) {
781: while (my $line=<$dfh>) {
782: my ($time,$sdf,$rest)=split(/:/,$line,3);
783: if ($time < 1541185772) {
784: $checkbackwards = 1;
785: }
786: last;
787: }
788: undef $dfh;
789: }
790:
791: if ($checkbackwards) {
792: if (tie *BW, 'File::ReadBackwards', "$perlvar{'lonDaemons'}/logs/lonnet.perm.log") {
793: while(my $line=<BW>) {
794: if ($line =~ /\QLondTransaction=HASH\E[^:]+:update:/) {
795: ($checkfrom) = split(/:/,$line,2);
796: last;
797: }
798: }
799: close(BW);
800: }
801: }
802: $dfh=IO::File->new("$perlvar{'lonDaemons'}/logs/lonnet.perm.log","r");
803: if (defined($dfh)) {
804: while (my $line=<$dfh>) {
805: my ($time,$sdf,$rest)=split(/:/,$line,3);
806: next unless (($sdf eq 'F') || ($sdf eq 'S') || ($sdf eq 'D'));
807: next if (($checkfrom) && ($time <= $checkfrom));
808: my ($dserv,$dcmd);
809: if ($sdf eq 'S') {
810: my ($serva,$cmda,$servb,$cmdb) = split(/:/,$rest);
811: if ($cmda eq 'sethost') {
812: chomp($cmdb);
813: $dcmd = $cmdb;
814: } else {
815: $dcmd = $cmda;
816: }
817: if (($serva =~ /^LondTransaction/) || ($serva eq '')) {
818: unless (($servb eq '') || ($servb =~ m{^/})) {
819: $dserv = $servb;
820: }
821: } else {
822: $dserv = $serva;
823: }
824: } else {
825: ($dserv,$dcmd) = split(/:/,$rest);
826: }
827: if ($sdf eq 'F') {
828: my $local=localtime($time);
829: &log($fh,"<b>Failed: $time, $dserv, $dcmd</b><br />");
830: $warnings++;
831: }
832: next if ((($dserv eq '') || ($dcmd eq '')) && ($sdf ne 'F'));
833: if ($sdf eq 'S') {
834: if ($dcmd eq 'update') {
835: if ($hostname{$dserv}) {
836: if ($exclusions{$serverhomes{$hostname{$dserv}}}) {
837: $ignored --;
838: } else {
839: $unsend --;
840: }
841: }
842: if (exists($bymachine{$dserv})) {
843: $bymachine{$dserv} --;
844: } else {
845: $bymachine{$dserv} = -1;
846: }
847: } else {
848: if ($hostname{$dserv}) {
849: $unsend --;
850: }
851: }
852: } elsif ($sdf eq 'D') {
853: if ($dcmd eq 'update') {
854: if ($hostname{$dserv}) {
855: if ($exclusions{$serverhomes{$hostname{$dserv}}}) {
856: $ignored ++;
857: } else {
858: $unsend ++;
859: }
860: }
861: if (exists($bymachine{$dserv})) {
862: $bymachine{$dserv} ++;
863: } else {
864: $bymachine{$dserv} = 1;
865: }
866: } else {
867: if ($hostname{$dserv}) {
868: $unsend ++;
869: }
870: }
871: }
872: }
873: undef $dfh;
874: my $nodest = 0;
875: my $retired = 0;
876: my %active;
877: if (keys(%bymachine)) {
878: unless ($checkexcluded) {
879: %serverhomes = &read_serverhomeIDs();
880: }
881: foreach my $key (keys(%bymachine)) {
882: if ($bymachine{$key} > 0) {
883: if ($hostname{$key}) {
884: $active{$serverhomes{$hostname{$key}}} += $bymachine{$key};
885: } else {
886: $retired ++;
887: $nodest += $bymachine{$key};
888: }
889: }
890: }
891: }
892: if (keys(%active)) {
893: &log($fh,"<p>Unsend messages by node, active (undegraded) nodes in cluster</p>\n");
894: foreach my $key (sort(keys(%active))) {
895: &log($fh,&encode_entities("$key => $active{$key}",'<>&"')."\n");
896: }
897: }
898: &log($fh,"<p>Total unsend messages: <b>$unsend</b> for ".scalar(keys(%active))." active (undegraded) nodes in cluster.</p>\n");
899: if (keys(%exclusions) > 0) {
900: &log($fh,"<p>Total incomplete updates <b>$ignored</b> for ".scalar(keys(%exclusions))." degraded nodes in cluster.</p>\n");
901: }
902: if ($retired) {
903: &log($fh,"<p>Total unsent <b>$nodest</b> for $retired nodes no longer in cluster.</p>\n");
904: }
905: if ($unsend > 0) {
906: $warnings=$warnings+$weights{'U'}*$unsend;
907: }
908: }
909:
910: if ($unsend) { $simplestatus{'unsend'}=$unsend; }
911: &log($fh,"<h3>Outgoing Buffer</h3>\n<pre>");
912: # list directory with delayed messages and remember offline servers
913: my %servers=();
914: open (DFH,"ls -lF $perlvar{'lonSockDir'}/delayed|");
915: while (my $line=<DFH>) {
916: my ($server)=($line=~/\.(\w+)$/);
917: if ($server) { $servers{$server}=1; }
918: &log($fh,&encode_entities($line,'<>&"'));
919: }
920: &log($fh,"</pre>\n");
921: close (DFH);
922: # pong to all servers that have delayed messages
923: # this will trigger a reverse connection, which should flush the buffers
924: foreach my $tryserver (sort(keys(%servers))) {
925: if ($hostname{$tryserver} || !$numhosts) {
926: my $answer;
927: eval {
928: local $SIG{ ALRM } = sub { die "TIMEOUT" };
929: alarm(20);
930: $answer = &Apache::lonnet::reply("pong",$tryserver);
931: alarm(0);
932: };
933: if ($@ && $@ =~ m/TIMEOUT/) {
934: &log($fh,"Attempted pong to $tryserver timed out<br />");
935: print "Time out while contacting: $tryserver for pong.\n";
936: } else {
937: &log($fh,"Pong to $tryserver: $answer<br />");
938: }
939: } else {
940: &log($fh,"$tryserver has delayed messages, but is not part of the cluster -- skipping 'Pong'.<br />");
941: }
942: }
943: }
944:
945: sub finish_logging {
946: my ($fh,$weightsref)=@_;
947: my %weights;
948: if (ref($weightsref) eq 'HASH') {
949: %weights = %{$weightsref};
950: }
951: &log($fh,"<a name='errcount' />\n");
952: $totalcount=($weights{'N'}*$notices)+($weights{'W'}*$warnings)+($weights{'E'}*$errors);
953: &errout($fh);
954: &log($fh,"<h1>Total Error Count: $totalcount</h1>");
955: my $now=time;
956: my $date=localtime($now);
957: &log($fh,"<hr />$date ($now)</body></html>\n");
958: print "lon-status webpage updated.\n";
959: $fh->close();
960:
961: if ($errors) { $simplestatus{'errors'}=$errors; }
962: if ($warnings) { $simplestatus{'warnings'}=$warnings; }
963: if ($notices) { $simplestatus{'notices'}=$notices; }
964: $simplestatus{'time'}=time;
965: }
966:
967: sub log_simplestatus {
968: rename("$statusdir/newstatus.html","$statusdir/index.html");
969:
970: my $sfh=IO::File->new(">$statusdir/loncron_simple.txt");
971: foreach (keys %simplestatus) {
972: print $sfh $_.'='.$simplestatus{$_}.'&';
973: }
974: print $sfh "\n";
975: $sfh->close();
976: }
977:
978: sub write_loncaparevs {
979: print "Retrieving LON-CAPA version information.\n";
980: my %hostname = &Apache::lonnet::all_hostnames();
981: my $output;
982: foreach my $id (sort(keys(%hostname))) {
983: if ($id ne '') {
984: my $loncaparev;
985: eval {
986: local $SIG{ ALRM } = sub { die "TIMEOUT" };
987: alarm(10);
988: $loncaparev =
989: &Apache::lonnet::get_server_loncaparev('',$id,1,'loncron');
990: alarm(0);
991: };
992: if ($@ && $@ =~ m/TIMEOUT/) {
993: print "Time out while contacting lonHost: $id for version.\n";
994: }
995: if ($loncaparev =~ /^[\w.\-]+$/) {
996: $output .= $id.':'.$loncaparev."\n";
997: }
998: }
999: }
1000: if ($output) {
1001: if (open(my $fh,">$perlvar{'lonTabDir'}/loncaparevs.tab")) {
1002: print $fh $output;
1003: close($fh);
1004: &Apache::lonnet::load_loncaparevs();
1005: }
1006: }
1007: return;
1008: }
1009:
1010: sub write_serverhomeIDs {
1011: print "Retrieving LON-CAPA lonHostID information.\n";
1012: my %name_to_host = &Apache::lonnet::all_names();
1013: my $output;
1014: foreach my $name (sort(keys(%name_to_host))) {
1015: if ($name ne '') {
1016: if (ref($name_to_host{$name}) eq 'ARRAY') {
1017: my $serverhomeID;
1018: eval {
1019: local $SIG{ ALRM } = sub { die "TIMEOUT" };
1020: alarm(10);
1021: $serverhomeID =
1022: &Apache::lonnet::get_server_homeID($name,1,'loncron');
1023: alarm(0);
1024: };
1025: if ($@ && $@ =~ m/TIMEOUT/) {
1026: print "Time out while contacting server: $name\n";
1027: }
1028: if ($serverhomeID ne '') {
1029: $output .= $name.':'.$serverhomeID."\n";
1030: } else {
1031: $output .= $name.':'.$name_to_host{$name}->[0]."\n";
1032: }
1033: }
1034: }
1035: }
1036: if ($output) {
1037: if (open(my $fh,">$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
1038: print $fh $output;
1039: close($fh);
1040: &Apache::lonnet::load_serverhomeIDs();
1041: }
1042: }
1043: return;
1044: }
1045:
1046: sub write_checksums {
1047: my $distro = &LONCAPA::distro();
1048: if ($distro) {
1049: print "Retrieving file version and checksumming.\n";
1050: my $numchksums = 0;
1051: my ($chksumsref,$versionsref) =
1052: &LONCAPA::Checksumming::get_checksums($distro,$perlvar{'lonDaemons'},
1053: $perlvar{'lonLib'},
1054: $perlvar{'lonIncludes'},
1055: $perlvar{'lonTabDir'});
1056: if (ref($chksumsref) eq 'HASH') {
1057: $numchksums = scalar(keys(%{$chksumsref}));
1058: }
1059: print "File version retrieved and checksumming completed for $numchksums files.\n";
1060: } else {
1061: print "File version retrieval and checksumming skipped - could not determine Linux distro.\n";
1062: }
1063: return;
1064: }
1065:
1066: sub write_hostips {
1067: my $lontabdir = $perlvar{'lonTabDir'};
1068: my $defdom = $perlvar{'lonDefDomain'};
1069: my $lonhost = $perlvar{'lonHostID'};
1070: my $newfile = "$lontabdir/currhostips.tab";
1071: my $oldfile = "$lontabdir/prevhostips.tab";
1072: my (%prevhosts,%currhosts,%ipchange);
1073: if ((-e $newfile) && (-s $newfile)) {
1074: move($newfile,$oldfile);
1075: chmod(0644,$oldfile);
1076: if (open(my $fh,'<',$oldfile)) {
1077: while (my $line=<$fh>) {
1078: chomp($line);
1079: if ($line =~ /^([^:]+):([\d.]+)$/) {
1080: $prevhosts{$1} = $2;
1081: }
1082: }
1083: close($fh);
1084: }
1085: }
1086: my ($ip_info,$cached) =
1087: &Apache::lonnet::is_cached_new('iphost','iphost');
1088: if (!$cached) {
1089: &Apache::lonnet::get_iphost();
1090: ($ip_info,$cached) =
1091: &Apache::lonnet::is_cached_new('iphost','iphost');
1092: }
1093: if (ref($ip_info) eq 'ARRAY') {
1094: %currhosts = %{$ip_info->[1]};
1095: if (open(my $fh,'>',$newfile)) {
1096: foreach my $key (keys(%currhosts)) {
1097: print $fh "$key:$currhosts{$key}\n";
1098: }
1099: close($fh);
1100: chmod(0644,$newfile);
1101: }
1102: }
1103: if (keys(%prevhosts) && keys(%currhosts)) {
1104: foreach my $key (keys(%prevhosts)) {
1105: unless ($currhosts{$key} eq $prevhosts{$key}) {
1106: $ipchange{$key} = $prevhosts{$key}.' | '.$currhosts{$key};
1107: }
1108: }
1109: foreach my $key (keys(%currhosts)) {
1110: unless ($currhosts{$key} eq $prevhosts{$key}) {
1111: $ipchange{$key} = $prevhosts{$key}.' | '.$currhosts{$key};
1112: }
1113: }
1114: }
1115: if (&Apache::lonnet::domain($defdom,'primary') eq $lonhost) {
1116: if (keys(%ipchange)) {
1117: if (open(my $fh,'>>',$perlvar{'lonDaemons'}.'/logs/hostip.log')) {
1118: print $fh "********************\n".localtime(time).' Changes --'."\n".
1119: "| Hostname | Previous IP | New IP |\n".
1120: " --------------------------------- \n";
1121: foreach my $hostname (sort(keys(%ipchange))) {
1122: print $fh "| $hostname | $ipchange{$hostname} |\n";
1123: }
1124: print $fh "\n*******************\n\n";
1125: close($fh);
1126: }
1127: my $emailto = &Apache::loncommon::build_recipient_list(undef,
1128: 'hostipmail',$defdom);
1129: if ($emailto) {
1130: my $subject = "LON-CAPA Hostname to IP change ($perlvar{'lonHostID'})";
1131: my $chgmail = "To: $emailto\n".
1132: "Subject: $subject\n".
1133: "Content-type: text/plain\; charset=UTF-8\n".
1134: "MIME-Version: 1.0\n\n".
1135: "Host/IP changes\n".
1136: " \n".
1137: "| Hostname | Previous IP | New IP |\n".
1138: " --------------------------------- \n";
1139: foreach my $hostname (sort(keys(%ipchange))) {
1140: $chgmail .= "| $hostname | $ipchange{$hostname} |\n";
1141: }
1142: $chgmail .= "\n\n";
1143: if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) {
1144: print $mailh $chgmail;
1145: close($mailh);
1146: print "Sending mail notification of hostname/IP changes.\n";
1147: }
1148: }
1149: }
1150: }
1151: return;
1152: }
1153:
1154: sub get_domain_config {
1155: my ($dom,$primlibserv,$isprimary,$url,%confhash);
1156: $dom = $perlvar{'lonDefDomain'};
1157: $primlibserv = &Apache::lonnet::domain($dom,'primary');
1158: if ($primlibserv eq $perlvar{'lonHostID'}) {
1159: $isprimary = 1;
1160: } elsif ($primlibserv ne '') {
1161: my $protocol = $Apache::lonnet::protocol{$primlibserv};
1162: my $hostname = &Apache::lonnet::hostname($primlibserv);
1163: unless ($protocol eq 'https') {
1164: $protocol = 'http';
1165: }
1166: $url = $protocol.'://'.$hostname.'/cgi-bin/listdomconfig.pl?primary='.$primlibserv.'&format=raw';
1167: }
1168: if ($isprimary) {
1169: my $lonusersdir = $perlvar{'lonUsersDir'};
1170: my $fname = $lonusersdir.'/'.$dom.'/configuration.db';
1171: if (-e $fname) {
1172: my $dbref=&LONCAPA::locking_hash_tie($fname,&GDBM_READER());
1173: if (ref($dbref) eq 'HASH') {
1174: foreach my $key (sort(keys(%{$dbref}))) {
1175: my $value = $dbref->{$key};
1176: if ($value =~ s/^__FROZEN__//) {
1177: $value = thaw(&LONCAPA::unescape($value));
1178: } else {
1179: $value = &LONCAPA::unescape($value);
1180: }
1181: $confhash{$key} = $value;
1182: }
1183: &LONCAPA::locking_hash_untie($dbref);
1184: }
1185: }
1186: } else {
1187: my $ua=new LWP::UserAgent;
1188: $ua->timeout(5);
1189: my $request=new HTTP::Request('GET',$url);
1190: my $response=$ua->request($request);
1191: unless ($response->is_error()) {
1192: my $content = $response->content;
1193: if ($content) {
1194: my @pairs=split(/\&/,$content);
1195: foreach my $item (@pairs) {
1196: my ($key,$value)=split(/=/,$item,2);
1197: my $what = &LONCAPA::unescape($key);
1198: if ($value =~ s/^__FROZEN__//) {
1199: $value = thaw(&LONCAPA::unescape($value));
1200: } else {
1201: $value = &LONCAPA::unescape($value);
1202: }
1203: $confhash{$what}=$value;
1204: }
1205: }
1206: }
1207: }
1208: return \%confhash;
1209: }
1210:
1211: sub get_permcount_settings {
1212: my ($domconf) = @_;
1213: my ($defaults,$names) = &Apache::loncommon::lon_status_items();
1214: my (%weights,$threshold,$sysmail,$reportstatus,%exclusions);
1215: foreach my $type ('E','W','N','U') {
1216: $weights{$type} = $defaults->{$type};
1217: }
1218: $threshold = $defaults->{'threshold'};
1219: $sysmail = $defaults->{'sysmail'};
1220: $reportstatus = 1;
1221: if (ref($domconf) eq 'HASH') {
1222: if (ref($domconf->{'contacts'}) eq 'HASH') {
1223: if ($domconf->{'contacts'}{'reportstatus'} == 0) {
1224: $reportstatus = 0;
1225: }
1226: if (ref($domconf->{'contacts'}{'lonstatus'}) eq 'HASH') {
1227: if (ref($domconf->{'contacts'}{'lonstatus'}{weights}) eq 'HASH') {
1228: foreach my $type ('E','W','N','U') {
1229: if (exists($domconf->{'contacts'}{'lonstatus'}{weights}{$type})) {
1230: $weights{$type} = $domconf->{'contacts'}{'lonstatus'}{weights}{$type};
1231: }
1232: }
1233: }
1234: if (ref($domconf->{'contacts'}{'lonstatus'}{'excluded'}) eq 'ARRAY') {
1235: my @excluded = @{$domconf->{'contacts'}{'lonstatus'}{'excluded'}};
1236: if (@excluded) {
1237: map { $exclusions{$_} = 1; } @excluded;
1238: }
1239: }
1240: if (exists($domconf->{'contacts'}{'lonstatus'}{'threshold'})) {
1241: $threshold = $domconf->{'contacts'}{'lonstatus'}{'threshold'};
1242: }
1243: if (exists($domconf->{'contacts'}{'lonstatus'}{'sysmail'})) {
1244: $sysmail = $domconf->{'contacts'}{'lonstatus'}{'sysmail'};
1245: }
1246: }
1247: }
1248: }
1249: return ($threshold,$sysmail,$reportstatus,\%weights,\%exclusions);
1250: }
1251:
1252: sub read_serverhomeIDs {
1253: my %server;
1254: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
1255: if (open(my $fh,'<',"$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
1256: while (<$fh>) {
1257: my($host,$id) = split(/:/);
1258: chomp($id);
1259: $server{$host} = $id;
1260: }
1261: close($fh);
1262: }
1263: }
1264: return %server;
1265: }
1266:
1267: sub check_bash_settings {
1268: my $distro = &LONCAPA::distro();
1269: my ($check_bracketed_paste,$bracketed_warning);
1270: if ($distro =~ /^debian(\d+)$/) {
1271: if ($1 >= 12) {
1272: $check_bracketed_paste = 1;
1273: }
1274: } elsif ($distro =~ /^ubuntu(\d+)$/) {
1275: if ($1 >= 22) {
1276: $check_bracketed_paste = 1;
1277: }
1278: } elsif ($distro =~ /^(?:redhat|oracle|alma|rocky|centos-stream)(\d+)$/) {
1279: if ($1 >= 9) {
1280: $check_bracketed_paste = 1;
1281: }
1282: } elsif ($distro =~ /^fedora(\d+)/) {
1283: if ($1 >= 34) {
1284: $check_bracketed_paste = 1;
1285: }
1286: }
1287: if ($check_bracketed_paste) {
1288: if (open(PIPE,"bind -V 2>&1 | grep enable-bracketed-paste |")) {
1289: my $info = <PIPE>;
1290: chomp($info);
1291: my ($bracketed) = ($info =~ /^\Qenable-bracketed-paste\E\s+is\s+set\s+to\s+\W(on|off)\W$/);
1292: close(PIPE);
1293: if ($bracketed eq 'on') {
1294: $bracketed_warning = 1;
1295: }
1296: } else {
1297: print "Unable to check if bracketed paste is set to off for www user's shell\n";
1298: }
1299: }
1300: return ($bracketed_warning,$check_bracketed_paste);
1301: }
1302:
1303: sub set_bracketed_paste_off {
1304: my $bash_www_cnf = '/home/www/.inputrc';
1305: my $result;
1306: if (!-e $bash_www_cnf) {
1307: system("touch $bash_www_cnf");
1308: if (open(my $cfh,'>',$bash_www_cnf)) {
1309: print $cfh "set enable-bracketed-paste off\n";
1310: close($cfh);
1311: $result = "Updated $bash_www_cnf";
1312: } else {
1313: $result = "Could not open $bash_www_cnf to add 'set enable-bracketed-paste to off'";
1314: }
1315: my $wwwuid = getpwnam('www');
1316: my $wwwgid = getgrnam('www');
1317: if ($wwwuid!=$<) {
1318: chown($wwwuid,$wwwgid,$bash_www_cnf);
1319: }
1320: } else {
1321: my ($bracketed_paste_on,$bracketed_paste_off,@preserve);
1322: if (open(my $cfh,'<',$bash_www_cnf)) {
1323: while (my $line=<$cfh>) {
1324: chomp($line);
1325: if ($line =~ /^\s*set\s+enable\-bracketed\-paste\s+(off|on)\s*$/) {
1326: if ($1 eq 'off') {
1327: $bracketed_paste_off = 1;
1328: } else {
1329: $bracketed_paste_on = 1;
1330: }
1331: } else {
1332: push(@preserve,$line);
1333: }
1334: }
1335: close($cfh);
1336: if ($bracketed_paste_on || !$bracketed_paste_off) {
1337: if (open(my $cfh,'>',$bash_www_cnf)) {
1338: print $cfh "set enable-bracketed-paste off\n";
1339: if (@preserve) {
1340: foreach my $entry (@preserve) {
1341: print $cfh "$entry\n";
1342: }
1343: }
1344: close($cfh);
1345: $result = "Updated $bash_www_cnf";
1346: } else {
1347: $result = "Could not open $bash_www_cnf to add 'set enable-bracketed-paste to off'";
1348: }
1349: } else {
1350: $result = "No action needed; $bash_www_cnf already includes 'set enable-bracketed-paste to off'";
1351: }
1352: } else {
1353: $result = "Could not open $bash_www_cnf to check if a value is included for 'enable-bracketed-paste'.";
1354: }
1355: }
1356: return $result;
1357: }
1358:
1359: sub send_mail {
1360: my ($sysmail,$reportstatus) = @_;
1361: my $defdom = $perlvar{'lonDefDomain'};
1362: my $origmail = $perlvar{'lonAdmEMail'};
1363: my $emailto = &Apache::loncommon::build_recipient_list(undef,
1364: 'lonstatusmail',$defdom,$origmail);
1365: if (($totalcount>$sysmail) && ($reportstatus)) {
1366: $emailto.=",$perlvar{'lonSysEMail'}";
1367: }
1368: my $from;
1369: my $hostname=`/bin/hostname`;
1370: chop($hostname);
1371: $hostname=~s/[^\w\.]//g;
1372: if ($hostname) {
1373: $from = 'www@'.$hostname;
1374: }
1375: my $subj="LON: $perlvar{'lonHostID'} E:$errors W:$warnings N:$notices";
1376: my $loncronmail = "To: $emailto\n".
1377: "From: $from\n".
1378: "Subject: ".$subj."\n".
1379: "Content-type: text/html\; charset=UTF-8\n".
1380: "MIME-Version: 1.0\n\n";
1381: if (open(my $fh,"<$statusdir/index.html")) {
1382: while (<$fh>) {
1383: $loncronmail .= $_;
1384: }
1385: close($fh);
1386: } else {
1387: $loncronmail .= "Failed to read from http://$hostname/lon-status/index.html\n";
1388: }
1389: $loncronmail .= "\n\n";
1390: if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) {
1391: print $mailh $loncronmail;
1392: close($mailh);
1393: print "Sending mail.\n";
1394: } else {
1395: print "Sending mail failed.\n";
1396: }
1397: }
1398:
1399: sub usage {
1400: print(<<USAGE);
1401: loncron - housekeeping program that checks up on various parts of LON-CAPA
1402:
1403: Options:
1404: --help Display
1405: --noemail Do not send the status email
1406: --justcheckconnections Only check the current status of the lonc/d
1407: connections, do not send emails do not
1408: check if the daemons are running, do not
1409: generate lon-status
1410: --justcheckdaemons Only check that all of the Lon-CAPA daemons are
1411: running, do not send emails do not
1412: check the lonc/d connections, do not
1413: generate lon-status
1414: --justreload Only tell the daemons to reload the config files,
1415: do not send emails do not
1416: check if the daemons are running, do not
1417: generate lon-status
1418: --justiptables Only update the dynamic iptables rules for the
1419: lond port; do not send emails, do not
1420: check if the daemons are running, do not
1421: generate lon-status
1422: USAGE
1423: }
1424:
1425: # ================================================================ Main Program
1426: sub main () {
1427: my ($help,$justcheckdaemons,$noemail,$justcheckconnections,
1428: $justreload,$justiptables);
1429: &GetOptions("help" => \$help,
1430: "justcheckdaemons" => \$justcheckdaemons,
1431: "noemail" => \$noemail,
1432: "justcheckconnections" => \$justcheckconnections,
1433: "justreload" => \$justreload,
1434: "justiptables" => \$justiptables
1435: );
1436: if ($help) { &usage(); return; }
1437: # --------------------------------- Read loncapa_apache.conf and loncapa.conf
1438: my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
1439: %perlvar=%{$perlvarref};
1440: undef $perlvarref;
1441: delete $perlvar{'lonReceipt'}; # remove since sensitive and not needed
1442: delete $perlvar{'lonSqlAccess'}; # remove since sensitive and not needed
1443: chdir($perlvar{'lonDaemons'});
1444: # --------------------------------------- Make sure that LON-CAPA is configured
1445: # I only test for one thing here (lonHostID). This is just a safeguard.
1446: if ('{[[[[lonHostID]]]]}' eq $perlvar{'lonHostID'}) {
1447: print("Unconfigured machine.\n");
1448: my $emailto=$perlvar{'lonSysEMail'};
1449: my $hostname = Sys::Hostname::FQDN::fqdn();
1450: $hostname=~s/\.+/./g;
1451: $hostname=~s/\-+/-/g;
1452: $hostname=~s/[^\w\.-]//g; # make sure is safe to pass through shell
1453: my $subj="LON: Unconfigured machine $hostname";
1454: system("echo 'Unconfigured machine $hostname.' |".
1455: " mail -s '$subj' $emailto > /dev/null");
1456: exit 1;
1457: }
1458:
1459: # ----------------------------- Make sure this process is running from user=www
1460: my $wwwid=getpwnam('www');
1461: if ($wwwid!=$<) {
1462: print("User ID mismatch. This program must be run as user 'www'.\n");
1463: my $emailto="$perlvar{'lonAdmEMail'} $perlvar{'lonSysEMail'}";
1464: my $subj="LON: $perlvar{'lonHostID'} User ID mismatch";
1465: system("echo 'User ID mismatch. loncron must be run as user www.' |".
1466: " mail -s '$subj' $emailto > /dev/null");
1467: exit 1;
1468: }
1469:
1470: # -------------------------------------------- Force reload of host information
1471: my $nomemcache;
1472: if ($justcheckdaemons) {
1473: $nomemcache=1;
1474: my $memcachepidfile="$perlvar{'lonDaemons'}/logs/memcached.pid";
1475: my $memcachepid;
1476: if (-e $memcachepidfile) {
1477: my $memfh=IO::File->new($memcachepidfile);
1478: $memcachepid=<$memfh>;
1479: chomp($memcachepid);
1480: if ($memcachepid =~ /^\d+$/ && kill 0 => $memcachepid) {
1481: undef($nomemcache);
1482: }
1483: }
1484: }
1485: if (!$justiptables) {
1486: &Apache::lonnet::load_hosts_tab(1,$nomemcache);
1487: &Apache::lonnet::load_domain_tab(1,$nomemcache);
1488: &Apache::lonnet::get_iphost(1,$nomemcache);
1489: }
1490:
1491: # ----------------------------------------- Force firewall update for lond port
1492:
1493: if ((!$justcheckdaemons) && (!$justreload)) {
1494: my $now = time;
1495: my $tmpfile = $perlvar{'lonDaemons'}.'/tmp/lciptables_iphost_'.
1496: $now.$$.int(rand(10000));
1497: if (open(my $fh,">$tmpfile")) {
1498: my %iphosts = &Apache::lonnet::get_iphost();
1499: foreach my $key (keys(%iphosts)) {
1500: print $fh "$key\n";
1501: }
1502: close($fh);
1503: if (&LONCAPA::try_to_lock('/tmp/lock_lciptables')) {
1504: my $execpath = $perlvar{'lonDaemons'}.'/lciptables';
1505: system("$execpath $tmpfile");
1506: unlink('/tmp/lock_lciptables'); # Remove the lock file.
1507: }
1508: unlink($tmpfile);
1509: }
1510: }
1511:
1512: # ---------------------------------------------------------------- Start report
1513:
1514: $errors=0;
1515: $warnings=0;
1516: $notices=0;
1517:
1518:
1519: my $fh;
1520: if (!$justcheckdaemons && !$justcheckconnections && !$justreload && !$justiptables) {
1521: $fh=&start_logging();
1522:
1523: &log_machine_info($fh);
1524: &clean_tmp($fh);
1525: &clean_lonIDs($fh);
1526: &clean_balanceIDs($fh);
1527: &clean_webDAV_sessionIDs($fh);
1528: &check_httpd_logs($fh);
1529: &rotate_lonnet_logs($fh);
1530: &rotate_other_logs($fh);
1531: }
1532: if (!$justcheckconnections && !$justreload && !$justiptables) {
1533: &checkon_daemon($fh,'lonmemcached',40000);
1534: &checkon_daemon($fh,'lonsql',200000);
1535: if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') {
1536: &checkon_daemon($fh,'lond',40000,'USR2');
1537: }
1538: &checkon_daemon($fh,'lonc',40000,'USR1');
1539: &checkon_daemon($fh,'lonmaxima',40000);
1540: &checkon_daemon($fh,'lonr',40000);
1541: }
1542: if ($justreload) {
1543: &checkon_daemon($fh,'lond',40000,'USR2');
1544: &checkon_daemon($fh,'lonc',40000,'USR2');
1545: }
1546: if ($justcheckconnections) {
1547: &test_connections($fh);
1548: }
1549: if (!$justcheckdaemons && !$justcheckconnections && !$justreload && !$justiptables) {
1550: my ($bracketed_warning,$check_bracketed_paste) = &check_bash_settings();
1551: if ($check_bracketed_paste) {
1552: &log($fh,'<hr /><a name="bashconf" /><h2>bash readline config</h2><h3>Bracketed Paste</h3>'.
1553: '<p>Distros using bash readline library 8.1 or later need bracketed paste disabled for www, so R commands sent to lon daemon will be processed.</p>');
1554: if ($bracketed_warning) {
1555: my $bash_update = &set_bracketed_paste_off();
1556: if ($bash_update) {
1557: &log($fh,'<p>'.$bash_update.'</p>'."\n");
1558: }
1559: } else {
1560: &log($fh,'<p>No action needed; /home/www/.inputrc already set.</p>'."\n");
1561: }
1562: } else {
1563: &log($fh,'<hr /><a name="bashconf" /><h2>bash readline config</h2><h3>Bracketed Paste</h3>'.
1564: '<p>No action needed for distros using pre-8.1 bash readline library</p>'."\n");
1565: }
1566: my $domconf = &get_domain_config();
1567: my ($threshold,$sysmail,$reportstatus,$weightsref,$exclusionsref) =
1568: &get_permcount_settings($domconf);
1569: &check_delayed_msg($fh,$weightsref,$exclusionsref);
1570: &finish_logging($fh,$weightsref);
1571: &log_simplestatus();
1572: &write_loncaparevs();
1573: &write_serverhomeIDs();
1574: &write_checksums();
1575: &write_hostips();
1576: if ($totalcount>$threshold && !$noemail) { &send_mail($sysmail,$reportstatus); }
1577: }
1578: }
1579:
1580: &main();
1581: 1;
1582:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to loncron CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom