Annotation of doc/install/linux/install.pl, revision 1.37
1.1 raeburn 1: #!/usr/bin/perl
2: # The LearningOnline Network
3: # Pre-installation script for LON-CAPA
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # http://www.lon-capa.org/
24: #
25:
26: use strict;
27: use File::Copy;
28: use Term::ReadKey;
29: use DBI;
30: use LCLocalization::localize;
31:
32: # ========================================================= The language handle
33:
34: my %languages = (
35: ar => 'Arabic',
36: de => 'German',
37: en => 'English',
38: es => 'Spanish (Castellan)',
39: fa => 'Persian',
40: fr => 'French',
41: he => 'Hebrew',
42: ja => 'Japanese',
43: pt => 'Portuguese',
44: ru => 'Russian',
45: tr => 'Turkish',
46: zh => 'Chinese Simplified'
47: );
48:
49: use vars qw($lh $lang);
50: $lang = 'en';
51: if (@ARGV > 0) {
52: foreach my $poss (keys(%languages)) {
53: if ($ARGV[0] eq $poss) {
54: $lang = $ARGV[0];
55: }
56: }
57: }
58:
59: &get_language_handle($lang);
60:
61: # Check user has root privs
62: if (0 != $<) {
63: print &mt('This script must be run as root.')."\n".
64: &mt('Stopping execution.')."\n";
65: exit;
66: }
67:
68:
69: # Globals: filehandle LOG is global.
70: if (!open(LOG,">>loncapa_install.log")) {
71: print &mt('Unable to open log file.')."\n".
72: &mt('Stopping execution.')."\n";
73: exit;
74: } else {
1.37 ! raeburn 75: print LOG '$Id: install.pl,v 1.36 2016/05/05 03:03:57 raeburn Exp $'."\n";
1.1 raeburn 76: }
77:
78: #
1.2 raeburn 79: # Helper routines and routines to establish recommended actions
1.1 raeburn 80: #
81:
82: sub get_language_handle {
83: my @languages = @_;
84: $lh=LCLocalization::localize->get_handle(@languages);
85: }
86:
87: sub mt (@) {
88: if ($lh) {
89: if ($_[0] eq '') {
90: if (wantarray) {
91: return @_;
92: } else {
93: return $_[0];
94: }
95: } else {
96: return $lh->maketext(@_);
97: }
98: } else {
99: if (wantarray) {
100: return @_;
101: } else {
102: return $_[0];
103: }
104: }
105: }
106:
107: sub texthash {
108: my (%hash) = @_;
109: foreach (keys(%hash)) {
110: $hash{$_}=&mt($hash{$_});
111: }
112: return %hash;
113: }
114:
115:
116: sub skip_if_nonempty {
117: my ($string,$error)=@_;
118: return if (! defined($error));
119: chomp($string);chomp($error);
120: if ($string ne '') {
121: print_and_log("$error\n".&mt('Stopping execution.')."\n");
122: return 1;
123: }
124: return;
125: }
126:
127: sub writelog {
128: while ($_ = shift) {
129: chomp();
130: print LOG "$_\n";
131: }
132: }
133:
134: sub print_and_log {
135: while ($_=shift) {
136: chomp();
137: print "$_\n";
138: print LOG "$_\n";
139: }
140: }
141:
142: sub get_user_selection {
143: my ($defaultrun) = @_;
144: my $do_action = 0;
145: my $choice = <STDIN>;
146: chomp($choice);
147: $choice =~ s/(^\s+|\s+$)//g;
148: my $yes = &mt('y');
149: if ($defaultrun) {
150: if (($choice eq '') || ($choice =~ /^\Q$yes\E/i)) {
151: $do_action = 1;
152: }
153: } else {
154: if ($choice =~ /^\Q$yes\E/i) {
155: $do_action = 1;
156: }
157: }
158: return $do_action;
159: }
160:
161: sub get_distro {
162: my ($distro,$gotprereqs,$updatecmd,$packagecmd,$installnow);
163: $packagecmd = '/bin/rpm -q LONCAPA-prerequisites ';
164: if (-e '/etc/redhat-release') {
165: open(IN,'</etc/redhat-release');
166: my $versionstring=<IN>;
167: chomp($versionstring);
168: close(IN);
169: if ($versionstring =~ /^Red Hat Linux release ([\d\.]+) /) {
170: my $version = $1;
171: if ($version=~/^7\./) {
172: $distro='redhat7';
173: } elsif ($version=~/^8\./) {
174: $distro='redhat8';
175: } elsif ($version=~/^9/) {
176: $distro='redhat9';
177: }
178: } elsif ($versionstring =~ /Fedora( Core)? release ([\d\.]+) /) {
179: my $version=$2;
180: if ($version - int($version) > .9) {
181: $distro = 'fedora'.(int($version)+1);
182: } else {
183: $distro = 'fedora'.int($version);
184: }
185: $updatecmd = 'yum install LONCAPA-prerequisites';
186: $installnow = 'yum -y install LONCAPA-prerequisites';
187: } elsif ($versionstring =~ /Red Hat Enterprise Linux [AE]S release ([\d\.]+) /) {
188: $distro = 'rhes'.$1;
189: $updatecmd = 'up2date -i LONCAPA-prerequisites';
190: } elsif ($versionstring =~ /Red Hat Enterprise Linux Server release (\d+)/) {
191: $distro = 'rhes'.$1;
192: $updatecmd = 'yum install LONCAPA-prerequisites';
193: $installnow = 'yum -y install LONCAPA-prerequisites';
1.21 raeburn 194: } elsif ($versionstring =~ /CentOS(?:| Linux) release (\d+)/) {
1.1 raeburn 195: $distro = 'centos'.$1;
196: $updatecmd = 'yum install LONCAPA-prerequisites';
197: $installnow = 'yum -y install LONCAPA-prerequisites';
1.22 raeburn 198: } elsif ($versionstring =~ /Scientific Linux (?:SL )?release ([\d.]+) /) {
1.1 raeburn 199: my $ver = $1;
200: $ver =~ s/\.\d+$//;
201: $distro = 'scientific'.$ver;
202: $updatecmd = 'yum install LONCAPA-prerequisites';
203: $installnow = 'yum -y install LONCAPA-prerequisites';
204: } else {
205: print &mt('Unable to interpret [_1] to determine system type.',
206: '/etc/redhat-release')."\n";
207: }
208: } elsif (-e '/etc/SuSE-release') {
209: open(IN,'</etc/SuSE-release');
210: my $versionstring=<IN>;
211: chomp($versionstring);
212: close(IN);
213: if ($versionstring =~ /^SUSE LINUX Enterprise Server ([\d\.]+) /i) {
214: $distro='sles'.$1;
215: if ($1 >= 10) {
216: $updatecmd = 'zypper install LONCAPA-prerequisites';
217: } else {
218: $updatecmd = 'yast -i LONCAPA-prerequisites';
219: }
220: } elsif ($versionstring =~ /^SuSE Linux ([\d\.]+) /i) {
221: $distro = 'suse'.$1;
1.12 raeburn 222: $updatecmd = 'yast -i LONCAPA-prerequisites';
1.1 raeburn 223: } elsif ($versionstring =~ /^openSUSE ([\d\.]+) /i) {
224: $distro = 'suse'.$1;
225: if ($1 >= 10.3 ) {
226: $updatecmd = 'zypper install LONCAPA-prerequisites';
227: } else {
228: $updatecmd = 'yast -i LONCAPA-prerequisites';
229: }
230: } else {
231: print &mt('Unable to interpret [_1] to determine system type.',
232: '/etc/SuSE-release')."\n";
233: }
234: } elsif (-e '/etc/issue') {
235: open(IN,'</etc/issue');
236: my $versionstring=<IN>;
237: chomp($versionstring);
238: close(IN);
239: $packagecmd = '/usr/bin/dpkg -l loncapa-prerequisites ';
240: $updatecmd = 'apt-get install loncapa-prerequisites';
241: if ($versionstring =~ /^Ubuntu (\d+)\.\d+/i) {
242: $distro = 'ubuntu'.$1;
243: $updatecmd = 'sudo apt-get install loncapa-prerequisites';
244: } elsif ($versionstring =~ /^Debian\s+GNU\/Linux\s+(\d+)\.\d+/i) {
245: $distro = 'debian'.$1;
246: } elsif (-e '/etc/debian_version') {
247: open(IN,'</etc/debian_version');
248: my $version=<IN>;
249: chomp($version);
250: close(IN);
251: if ($version =~ /^(\d+)\.\d+\.?\d*/) {
252: $distro='debian'.$1;
253: } else {
254: print &mt('Unable to interpret [_1] to determine system type.',
255: '/etc/debian_version')."\n";
256: }
257: } else {
258: print &mt('Unable to interpret [_1] to determine system type.',
259: '/etc/issue')."\n";
260: }
261: } elsif (-e '/etc/debian_version') {
262: open(IN,'</etc/debian_version');
263: my $version=<IN>;
264: chomp($version);
265: close(IN);
266: if ($version =~ /^(\d+)\.\d+\.?\d*/) {
267: $distro='debian'.$1;
268: $packagecmd = '/usr/bin/dpkg -l loncapa-prerequisites ';
269: $updatecmd = 'apt-get install loncapa-prerequisites';
270: } else {
271: print &mt('Unable to interpret [_1] to determine system type.',
272: '/etc/debian_version')."\n";
273: }
274: } else {
275: print &mt('Unknown installation: expecting a debian, ubuntu, suse, sles, redhat, fedora or scientific linux system.')."\n";
276: }
277: return ($distro,$packagecmd,$updatecmd,$installnow);
278: }
279:
280: sub check_prerequisites {
281: my ($packagecmd,$distro) = @_;
282: my $gotprereqs;
283: if ($packagecmd ne '') {
284: if (open(PIPE,"$packagecmd|")) {
285: if ($distro =~ /^(debian|ubuntu)/) {
286: my @lines = <PIPE>;
287: chomp(@lines);
288: foreach my $line (@lines) {
289: if ($line =~ /^ii\s+loncapa-prerequisites\s+([\w\.]+)/) {
290: $gotprereqs = $1;
291: }
292: }
293: } else {
294: my $line = <PIPE>;
295: chomp($line);
1.8 raeburn 296: if ($line =~ /^LONCAPA\-prerequisites\-([\d\-]+)\.(?:[.\w]+)$/) {
1.1 raeburn 297: $gotprereqs = $1;
298: }
299: }
300: close(PIPE);
301: } else {
302: print &mt('Error: could not determine if LONCAPA-prerequisites package is installed')."\n";
303: }
304: }
305: return $gotprereqs;
306: }
307:
1.6 raeburn 308: sub check_locale {
309: my ($distro) = @_;
1.8 raeburn 310: my ($fh,$langvar,$command);
311: $langvar = 'LANG';
1.6 raeburn 312: if ($distro =~ /^(ubuntu|debian)/) {
313: if (!open($fh,"</etc/default/locale")) {
314: print &mt('Failed to open: [_1], default locale not checked.',
315: '/etc/default/locale');
316: }
1.8 raeburn 317: } elsif ($distro =~ /^(suse|sles)/) {
318: if (!open($fh,"</etc/sysconfig/language")) {
319: print &mt('Failed to open: [_1], default locale not checked.',
320: '/etc/sysconfig/language');
321: }
322: $langvar = 'RC_LANG';
1.24 raeburn 323: } elsif ($distro =~ /^fedora(\d+)/) {
324: if ($1 >= 18) {
325: if (!open($fh,"</etc/locale.conf")) {
326: print &mt('Failed to open: [_1], default locale not checked.',
327: '/etc/locale.conf');
328: }
329: } elsif (!open($fh,"</etc/sysconfig/i18n")) {
330: print &mt('Failed to open: [_1], default locale not checked.',
331: '/etc/sysconfig/i18n');
332: }
1.29 raeburn 333: } elsif ($distro =~ /^(?:rhes|centos|scientific)(\d+)/) {
334: if ($1 >= 7) {
335: if (!open($fh,"</etc/locale.conf")) {
336: print &mt('Failed to open: [_1], default locale not checked.',
337: '/etc/locale.conf');
338: }
339: } elsif (!open($fh,"</etc/sysconfig/i18n")) {
340: print &mt('Failed to open: [_1], default locale not checked.',
341: '/etc/sysconfig/i18n');
342: }
1.6 raeburn 343: } else {
344: if (!open($fh,"</etc/sysconfig/i18n")) {
345: print &mt('Failed to open: [_1], default locale not checked.',
346: '/etc/sysconfig/i18n');
347: }
348: }
349: my @data = <$fh>;
350: chomp(@data);
351: foreach my $item (@data) {
1.25 raeburn 352: if ($item =~ /^\Q$langvar\E=\"?([^\"]*)\"?/) {
1.6 raeburn 353: my $default = $1;
354: if ($default ne 'en_US.UTF-8') {
355: if ($distro =~ /^debian/) {
1.25 raeburn 356: $command = 'locale-gen en_US.UTF-8'."\n".
357: 'update-locale LANG=en_US.UTF-8';
1.6 raeburn 358: } elsif ($distro =~ /^ubuntu/) {
1.25 raeburn 359: $command = 'sudo locale-gen en_US.UTF-8'."\n".
360: 'sudo update-locale LANG=en_US.UTF-8';
1.7 raeburn 361: } elsif ($distro =~ /^(suse|sles)/) {
362: $command = 'yast language';
1.6 raeburn 363: } else {
364: $command = 'system-config-language';
365: }
366: }
367: last;
368: }
369: }
370: close($fh);
371: return $command;
372: }
373:
1.1 raeburn 374: sub check_required {
375: my ($instdir,$dsn) = @_;
376: my ($distro,$packagecmd,$updatecmd,$installnow) = &get_distro();
377: if ($distro eq '') {
378: return;
379: }
380: my $gotprereqs = &check_prerequisites($packagecmd,$distro);
381: if ($gotprereqs eq '') {
1.22 raeburn 382: return ($distro,$gotprereqs,'',$packagecmd,$updatecmd);
1.6 raeburn 383: }
384: my $localecmd = &check_locale($distro);
385: unless ($localecmd eq '') {
386: return ($distro,$gotprereqs,$localecmd);
1.1 raeburn 387: }
1.34 raeburn 388: my ($mysqlon,$mysqlsetup,$mysqlrestart,$dbh,$has_pass,$has_lcdb,%recommended,
1.35 raeburn 389: $downloadstatus,$filetouse,$production,$testing,$apachefw,$tostop,$uses_systemctl);
1.1 raeburn 390: my $wwwuid = &uid_of_www();
391: my $wwwgid = getgrnam('www');
392: if (($wwwuid eq '') || ($wwwgid eq '')) {
393: $recommended{'wwwuser'} = 1;
394: }
395: unless( -e "/usr/local/sbin/pwauth") {
396: $recommended{'pwauth'} = 1;
397: }
398: $mysqlon = &check_mysql_running($distro);
399: if ($mysqlon) {
400: my $mysql_has_wwwuser = &check_mysql_wwwuser();
1.34 raeburn 401: ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser) =
402: &check_mysql_setup($instdir,$dsn,$distro,$mysql_has_wwwuser);
403: if ($mysqlsetup eq 'needsrestart') {
404: $mysqlrestart = '';
405: if ($distro eq 'ubuntu') {
406: $mysqlrestart = 'sudo ';
407: }
408: $mysqlrestart .= 'service mysql restart';
409: return ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,$mysqlrestart);
1.1 raeburn 410: } else {
1.34 raeburn 411: if ($mysqlsetup eq 'noroot') {
1.1 raeburn 412: $recommended{'mysqlperms'} = 1;
1.34 raeburn 413: } else {
414: unless ($mysql_has_wwwuser) {
415: $recommended{'mysqlperms'} = 1;
416: }
417: }
418: if ($dbh) {
419: $has_lcdb = &check_loncapa_mysqldb($dbh);
420: }
421: unless ($has_lcdb) {
422: $recommended{'mysql'} = 1;
1.1 raeburn 423: }
424: }
425: }
1.5 raeburn 426: ($recommended{'firewall'},$apachefw) = &chkfirewall($distro);
1.35 raeburn 427: ($recommended{'runlevels'},$tostop,$uses_systemctl) = &chkconfig($distro,$instdir);
1.1 raeburn 428: $recommended{'apache'} = &chkapache($distro,$instdir);
429: $recommended{'stopsrvcs'} = &chksrvcs($distro,$tostop);
430: ($recommended{'download'},$downloadstatus,$filetouse,$production,$testing)
431: = &need_download();
1.6 raeburn 432: return ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,
1.34 raeburn 433: $mysqlrestart,\%recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus,
1.35 raeburn 434: $filetouse,$production,$testing,$apachefw,$uses_systemctl);
1.1 raeburn 435: }
436:
437: sub check_mysql_running {
438: my ($distro) = @_;
1.23 raeburn 439: my $use_systemctl;
1.1 raeburn 440: my $mysqldaemon ='mysqld';
441: if ($distro =~ /^(suse|sles|debian|ubuntu)/) {
442: $mysqldaemon = 'mysql';
443: }
1.6 raeburn 444: my $process = 'mysqld_safe';
445: my $proc_owner = 'root';
446: if ($distro =~ /^ubuntu(\w+)/) {
447: if ($1 >= 10) {
448: $process = 'mysqld';
449: $proc_owner = 'mysql';
450: }
1.35 raeburn 451: } elsif ($distro =~ /^fedora(\d+)/) {
1.23 raeburn 452: if ($1 >= 16) {
453: $process = 'mysqld';
454: $proc_owner = 'mysql';
455: $use_systemctl = 1;
456: }
1.37 ! raeburn 457: if ($1 >= 22) {
! 458: $mysqldaemon ='mariadb';
! 459: }
1.35 raeburn 460: } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) {
1.29 raeburn 461: if ($1 >= 7) {
462: $mysqldaemon ='mariadb';
463: $process = 'mysqld';
464: $proc_owner = 'mysql';
465: $use_systemctl = 1;
466: }
1.35 raeburn 467: } elsif ($distro =~ /^sles(\d+)/) {
468: if ($1 >= 12) {
469: $use_systemctl = 1;
470: }
471: } elsif ($distro =~ /^suse(\d+)/) {
472: if ($1 >= 13) {
473: $use_systemctl = 1;
474: }
1.29 raeburn 475: }
1.35 raeburn 476: if (open(PIPE,"ps -ef |grep $process |grep ^$proc_owner |grep -v grep 2>&1 |")) {
1.1 raeburn 477: my $status = <PIPE>;
478: close(PIPE);
479: chomp($status);
1.6 raeburn 480: if ($status =~ /^\Q$proc_owner\E\s+\d+\s+/) {
1.1 raeburn 481: print_and_log(&mt('MySQL is running.')."\n");
482: return 1;
483: } else {
1.23 raeburn 484: if ($use_systemctl) {
485: system("/bin/systemctl start $mysqldaemon.service >/dev/null 2>&1 ");
486: } else {
487: system("/etc/init.d/$mysqldaemon start >/dev/null 2>&1 ");
488: }
1.1 raeburn 489: print_and_log(&mt('Waiting for MySQL to start.')."\n");
490: sleep 5;
1.12 raeburn 491: if (open(PIPE,"ps -ef |grep $process |grep -v grep 2>&1 |")) {
492: $status = <PIPE>;
1.1 raeburn 493: close(PIPE);
494: chomp($status);
1.12 raeburn 495: if ($status =~ /^\Q$proc_owner\E\s+\d+\s+/) {
1.1 raeburn 496: print_and_log(&mt('MySQL is running.')."\n");
497: return 1;
498: } else {
1.12 raeburn 499: print_and_log(&mt('Still waiting for MySQL to start.')."\n");
500: sleep 5;
501: if (open(PIPE,"ps -ef |grep $process |grep -v grep 2>&1 |")) {
502: $status = <PIPE>;
503: close(PIPE);
504: chomp($status);
505: if ($status =~ /^\Q$proc_owner\E\s+\d+\s+/) {
506: print_and_log(&mt('MySQL is running.')."\n");
507: return 1;
508: } else {
509: print_and_log(&mt('Given up waiting for MySQL to start.')."\n");
510: }
511: }
1.1 raeburn 512: }
513: }
514: }
515: } else {
516: print &mt('Could not determine if MySQL is running.')."\n";
517: }
518: return;
519: }
520:
521: sub chkconfig {
1.8 raeburn 522: my ($distro,$instdir) = @_;
1.23 raeburn 523: my (%needfix,%tostop,%uses_systemctl);
1.1 raeburn 524: my $checker_bin = '/sbin/chkconfig';
1.23 raeburn 525: my $sysctl_bin = '/bin/systemctl';
1.6 raeburn 526: my %daemon = (
527: mysql => 'mysqld',
528: apache => 'httpd',
529: cups => 'cups',
530: ntp => 'ntpd',
531: memcached => 'memcached',
532: );
1.1 raeburn 533: my @runlevels = qw/3 4 5/;
534: my @norunlevels = qw/0 1 6/;
535: if ($distro =~ /^(suse|sles)/) {
536: @runlevels = qw/3 5/;
537: @norunlevels = qw/0 2 1 6/;
1.6 raeburn 538: $daemon{'mysql'} = 'mysql';
539: $daemon{'apache'} = 'apache2';
1.8 raeburn 540: $daemon{'ntp'} = 'ntp';
1.1 raeburn 541: if ($distro =~ /^(suse|sles)9/) {
1.6 raeburn 542: $daemon{'apache'} = 'apache';
1.1 raeburn 543: }
1.35 raeburn 544: if ($distro =~ /^(suse|sles)([\d\.]+)/) {
545: my $name = $1;
546: my $num = $2;
547: if ($num > 11) {
1.26 raeburn 548: $uses_systemctl{'apache'} = 1;
1.35 raeburn 549: if (($name eq 'sles') || ($name eq 'suse' && $num >= 13.2)) {
550: $uses_systemctl{'mysql'} = 1;
551: $uses_systemctl{'ntp'} = 1;
552: $uses_systemctl{'cups'} = 1;
553: $uses_systemctl{'memcached'} = 1;
554: $daemon{'ntp'} = 'ntpd';
555: }
1.26 raeburn 556: }
557: }
1.6 raeburn 558: } elsif ($distro =~ /^(?:debian|ubuntu)(\d+)/) {
559: my $version = $1;
1.1 raeburn 560: @runlevels = qw/2 3 4 5/;
561: @norunlevels = qw/0 1 6/;
562: $checker_bin = '/usr/sbin/sysv-rc-conf';
1.6 raeburn 563: $daemon{'mysql'} = 'mysql';
564: $daemon{'apache'} = 'apache2';
565: $daemon{'ntp'} = 'ntp';
566: if (($distro =~ /^ubuntu/) && ($version <= 8)) {
567: $daemon{'cups'} = 'cupsys';
568: }
1.26 raeburn 569: } elsif ($distro =~ /^fedora(\d+)/) {
1.23 raeburn 570: my $version = $1;
571: if ($version >= 15) {
572: $uses_systemctl{'ntp'} = 1;
573: }
574: if ($version >= 16) {
575: $uses_systemctl{'mysql'} = 1;
576: $uses_systemctl{'apache'} = 1;
1.35 raeburn 577: $uses_systemctl{'memcached'} = 1;
578: $uses_systemctl{'cups'} = 1;
1.23 raeburn 579: }
1.37 ! raeburn 580: if ($version >= 22) {
! 581: $daemon{'mysql'} = 'mariadb';
! 582: }
1.29 raeburn 583: } elsif ($distro =~ /^(?:centos|rhes|scientific)(\d+)/) {
584: my $version = $1;
585: if ($version >= 7) {
586: $uses_systemctl{'ntp'} = 1;
587: $uses_systemctl{'mysql'} = 1;
588: $uses_systemctl{'apache'} = 1;
1.35 raeburn 589: $uses_systemctl{'memcached'} = 1;
590: $uses_systemctl{'cups'} = 1;
1.30 raeburn 591: $daemon{'mysql'} = 'mariadb';
1.29 raeburn 592: }
1.1 raeburn 593: }
1.23 raeburn 594: my $nocheck;
1.1 raeburn 595: if (! -x $checker_bin) {
1.23 raeburn 596: if ($uses_systemctl{'mysql'} && $uses_systemctl{'apache'}) {
597: if (! -x $sysctl_bin) {
598: $nocheck = 1;
599: }
600: } else {
601: $nocheck = 1;
602: }
603: }
604: if ($nocheck) {
1.6 raeburn 605: print &mt('Could not check runlevel status for MySQL or Apache')."\n";
1.1 raeburn 606: return;
607: }
608: my $rlstr = join('',@runlevels);
609: my $nrlstr = join('',@norunlevels);
1.23 raeburn 610:
1.6 raeburn 611: foreach my $type ('apache','mysql','ntp','cups','memcached') {
612: my $service = $daemon{$type};
1.23 raeburn 613: if ($uses_systemctl{$type}) {
1.35 raeburn 614: if (($type eq 'memcached') || ($type eq 'cups')) {
615: if (-l "/etc/systemd/system/multi-user.target.wants/$service.service") {
616: $tostop{$type} = 1;
617: }
618: } else {
619: if (!-l "/etc/systemd/system/multi-user.target.wants/$service.service") {
620: $needfix{$type} = "systemctl enable $service.service";
621: }
1.23 raeburn 622: }
623: } else {
624: my $command = $checker_bin.' --list '.$service.' 2>/dev/null';
1.35 raeburn 625: if ($type eq 'cups') {
1.23 raeburn 626: if ($distro =~ /^(?:debian|ubuntu)(\d+)/) {
627: my $version = $1;
628: if (($distro =~ /^ubuntu/) && ($version <= 8)) {
629: $command = $checker_bin.' --list cupsys 2>/dev/null';
1.19 raeburn 630: }
631: }
632: }
1.23 raeburn 633: my $results = `$command`;
634: my $tofix;
635: if ($results eq '') {
636: if (($type eq 'apache') || ($type eq 'mysql') || ($type eq 'ntp')) {
637: if ($distro =~ /^(debian|ubuntu)/) {
638: $tofix = "update-rc.d $type defaults";
639: } else {
640: $tofix = "$checker_bin --add $service\n";
641: }
1.6 raeburn 642: }
1.23 raeburn 643: } else {
644: my %curr_runlevels;
645: for (my $rl=0; $rl<=6; $rl++) {
646: if ($results =~ /$rl:on/) { $curr_runlevels{$rl}++; }
647: }
648: if (($type eq 'apache') || ($type eq 'mysql') || ($type eq 'ntp')) {
649: my $warning;
650: foreach my $rl (@runlevels) {
651: if (!exists($curr_runlevels{$rl})) {
652: $warning = 1;
653: }
654: }
655: if ($warning) {
656: $tofix = "$checker_bin --level $rlstr $service on\n";
657: }
658: } elsif (keys(%curr_runlevels) > 0) {
659: $tostop{$type} = 1;
1.1 raeburn 660: }
661: }
1.23 raeburn 662: if ($tofix) {
663: $needfix{$type} = $tofix;
1.1 raeburn 664: }
1.5 raeburn 665: }
1.1 raeburn 666: }
667: if ($distro =~ /^(suse|sles)([\d\.]+)$/) {
668: my $name = $1;
669: my $version = $2;
670: my ($major,$minor);
671: if ($name eq 'suse') {
672: ($major,$minor) = split(/\./,$version);
673: } else {
674: $major = $version;
675: }
676: if ($major > 10) {
1.8 raeburn 677: if (&check_SuSEfirewall2_setup($instdir)) {
678: $needfix{'insserv'} = 1;
679: }
1.1 raeburn 680: }
681: }
1.35 raeburn 682: return (\%needfix,\%tostop,\%uses_systemctl);
1.1 raeburn 683: }
684:
685: sub chkfirewall {
1.5 raeburn 686: my ($distro) = @_;
1.1 raeburn 687: my $configfirewall = 1;
688: my %ports = (
689: http => 80,
690: https => 443,
691: );
1.5 raeburn 692: my %activefw;
1.1 raeburn 693: if (&firewall_is_active()) {
694: my $iptables = &get_pathto_iptables();
695: if ($iptables eq '') {
696: print &mt('Firewall not checked as path to iptables not determined.')."\n";
697: } else {
1.5 raeburn 698: my @fwchains = &get_fw_chains($iptables,$distro);
1.1 raeburn 699: if (@fwchains) {
700: foreach my $service ('http','https') {
701: foreach my $fwchain (@fwchains) {
702: if (&firewall_is_port_open($iptables,$fwchain,$ports{$service})) {
703: $activefw{$service} = 1;
704: last;
705: }
706: }
707: }
708: if ($activefw{'http'}) {
709: $configfirewall = 0;
710: }
711: } else {
712: print &mt('Firewall not checked as iptables Chains not identified.')."\n";
713: }
714: }
715: } else {
716: print &mt('Firewall not enabled.')."\n";
717: }
1.5 raeburn 718: return ($configfirewall,\%activefw);
1.1 raeburn 719: }
720:
721: sub chkapache {
722: my ($distro,$instdir) = @_;
723: my $fixapache = 1;
1.28 raeburn 724: if ($distro =~ /^(debian|ubuntu)(\d+)$/) {
725: my $distname = $1;
726: my $version = $2;
1.33 raeburn 727: my ($stdconf,$stdsite);
728: if (($distname eq 'ubuntu') && ($version > 12)) {
729: $stdconf = "$instdir/debian-ubuntu/ubuntu14/loncapa_conf";
730: $stdsite = "$instdir/debian-ubuntu/ubuntu14/loncapa_sites";
731: } else {
732: $stdconf = "$instdir/debian-ubuntu/loncapa";
733: }
734: if (!-e $stdconf) {
1.1 raeburn 735: $fixapache = 0;
736: print &mt('Warning: No LON-CAPA Apache configuration file found for installation check.')."\n";
1.28 raeburn 737: } else {
1.33 raeburn 738: my ($configfile,$sitefile);
1.28 raeburn 739: if (($distname eq 'ubuntu') && ($version > 12)) {
1.33 raeburn 740: $sitefile = '/etc/apache2/sites-available/loncapa';
1.28 raeburn 741: $configfile = "/etc/apache2/conf-available/loncapa";
1.33 raeburn 742: } else {
743: $configfile = "/etc/apache2/sites-available/loncapa";
1.28 raeburn 744: }
1.33 raeburn 745: if (($configfile ne '') && (-e $configfile) && (-e $stdconf)) {
746: if (open(PIPE, "diff --brief $stdconf $configfile |")) {
1.28 raeburn 747: my $diffres = <PIPE>;
748: close(PIPE);
749: chomp($diffres);
750: unless ($diffres) {
751: $fixapache = 0;
752: }
1.1 raeburn 753: }
754: }
1.33 raeburn 755: if ((!$fixapache) && ($distname eq 'ubuntu') && ($version > 12)) {
756: if (($sitefile ne '') && (-e $sitefile) && (-e $stdsite)) {
757: if (open(PIPE, "diff --brief $stdsite $sitefile |")) {
758: my $diffres = <PIPE>;
759: close(PIPE);
760: chomp($diffres);
761: unless ($diffres) {
762: $fixapache = 0;
763: }
764: }
765: }
766: }
1.1 raeburn 767: }
1.6 raeburn 768: if (!$fixapache) {
769: foreach my $module ('headers.load','expires.load') {
770: unless (-l "/etc/apache2/mods-enabled/$module") {
771: $fixapache = 1;
772: }
773: }
774: }
1.1 raeburn 775: } elsif ($distro =~ /^(?:suse|sles)([\d\.]+)$/) {
776: my $apache = 'apache';
777: if ($1 >= 10) {
1.8 raeburn 778: $apache = 'apache2';
1.1 raeburn 779: }
1.9 raeburn 780: if (!-e "$instdir/sles-suse/default-server.conf") {
1.1 raeburn 781: $fixapache = 0;
782: print &mt('Warning: No LON-CAPA Apache configuration file found for installation check.')."\n";
1.9 raeburn 783: } elsif ((-e "/etc/$apache/default-server.conf") && (-e "$instdir/sles-suse/default-server.conf")) {
784: if (open(PIPE, "diff --brief $instdir/sles-suse/default-server.conf /etc/$apache/default-server.conf |")) {
785: my $diffres = <PIPE>;
786: close(PIPE);
787: chomp($diffres);
788: unless ($diffres) {
789: $fixapache = 0;
790: }
791: }
792: }
793: } elsif ($distro eq 'rhes4') {
794: if (!-e "$instdir/rhes4/httpd.conf") {
795: $fixapache = 0;
796: print &mt('Warning: No LON-CAPA Apache configuration file found for installation check.')."\n";
797: } elsif ((-e "/etc/httpd/conf/httpd.conf") && (-e "$instdir/rhes4/httpd.conf")) {
798: if (open(PIPE, "diff --brief $instdir/rhes4/httpd.conf /etc/httpd/conf/httpd.conf |")) {
1.1 raeburn 799: my $diffres = <PIPE>;
800: close(PIPE);
801: chomp($diffres);
802: unless ($diffres) {
803: $fixapache = 0;
804: }
805: }
806: }
807: } else {
1.14 raeburn 808: my $configfile = 'httpd.conf';
809: if ($distro =~ /^(?:centos|rhes|scientific)(\d+)$/) {
1.29 raeburn 810: if ($1 >= 7) {
811: $configfile = 'apache2.4/httpd.conf';
812: } elsif ($1 > 5) {
1.14 raeburn 813: $configfile = 'new/httpd.conf';
814: }
815: } elsif ($distro =~ /^fedora(\d+)$/) {
1.29 raeburn 816: if ($1 > 17) {
817: $configfile = 'apache2.4/httpd.conf';
818: } elsif ($1 > 10) {
1.15 raeburn 819: $configfile = 'new/httpd.conf';
1.14 raeburn 820: }
821: }
822: if (!-e "$instdir/centos-rhes-fedora-sl/$configfile") {
1.1 raeburn 823: $fixapache = 0;
824: print &mt('Warning: No LON-CAPA Apache configuration file found for installation check.')."\n";
1.14 raeburn 825: } elsif ((-e "/etc/httpd/conf/httpd.conf") && (-e "$instdir/centos-rhes-fedora-sl/$configfile")) {
826: if (open(PIPE, "diff --brief $instdir/centos-rhes-fedora-sl/$configfile /etc/httpd/conf/httpd.conf |")) {
1.1 raeburn 827: my $diffres = <PIPE>;
828: close(PIPE);
829: chomp($diffres);
830: unless ($diffres) {
831: $fixapache = 0;
832: }
833: }
834: }
835: }
836: return $fixapache;
837: }
838:
839: sub chksrvcs {
840: my ($distro,$tostop) = @_;
841: my %stopsrvcs;
842: if (ref($tostop) eq 'HASH') {
843: %stopsrvcs = %{$tostop};
844: }
1.6 raeburn 845: foreach my $service ('cups','memcached') {
1.1 raeburn 846: next if (exists($stopsrvcs{$service}));
847: my $daemon = $service;
848: if ($service eq 'cups') {
849: $daemon = 'cupsd';
850: }
851: my $cmd = "ps -ef |grep '$daemon' |grep -v grep";
852: if (open(PIPE,'-|',$cmd)) {
853: my $daemonrunning = <PIPE>;
854: chomp($daemonrunning);
855: close(PIPE);
856: if ($daemonrunning) {
1.12 raeburn 857: if ($service eq 'memcached') {
1.16 raeburn 858: my $cmd = '/usr/bin/memcached';
859: if ($distro =~ /^(suse|sles)/) {
860: $cmd = '/usr/sbin/memcached';
861: }
1.12 raeburn 862: unless ($daemonrunning =~ m{^www[^/]+\Q$cmd -m 400 -v\E$}) {
1.10 raeburn 863: $stopsrvcs{$service} = 1;
864: }
865: } else {
866: $stopsrvcs{$service} = 1;
867: }
1.1 raeburn 868: }
869: }
1.10 raeburn 870: }
1.1 raeburn 871: return \%stopsrvcs;
872: }
873:
874: sub need_download {
875: my $needs_download = 1;
876: my ($production,$testing,$stdsizes) = &download_versionslist();
877: my ($rootdir,$localcurrent,$localtesting,%tarball,%localsize,%bymodtime,
878: %bysize,$filetouse,$downloadstatus);
879: $rootdir = '/root';
880: if (opendir(my $dir,"$rootdir")) {
881: my (@lcdownloads,$version);
882: foreach my $file (readdir($dir)) {
883: if ($file =~ /^loncapa\-([\w\-.]+)\.tar\.gz$/) {
884: $version = $1;
885: } else {
886: next;
887: }
888: if (ref($stdsizes) eq 'HASH') {
889: if ($version eq 'current') {
890: my @stats = stat("$rootdir/$file");
891: $localcurrent = $stats[7];
1.4 raeburn 892: if ($localcurrent == $stdsizes->{$production}) {
1.1 raeburn 893: $needs_download = 0;
894: $filetouse = $file;
895: }
896: } elsif ($version eq 'testing') {
897: my @stats = stat("$rootdir/$file");
898: $localtesting = $stats[7];
1.4 raeburn 899: if ($localtesting == $stdsizes->{$testing}) {
1.1 raeburn 900: $needs_download = 0;
901: $filetouse = $file;
902: }
903: }
904: }
905: $tarball{$version} = $file;
906: push(@lcdownloads,$version);
907: }
908: if ($needs_download) {
909: if (@lcdownloads > 0) {
910: foreach my $version (@lcdownloads) {
911: my @stats = stat("$rootdir/$tarball{$version}");
912: my $mtime = $stats[9];
913: $localsize{$version} = $stats[7];
914: if ($mtime) {
915: push(@{$bymodtime{$mtime}},$version);
916: }
917: if ($localsize{$version}) {
918: push(@{$bysize{$localsize{$version}}},$version);
919: }
920: }
921: if ($testing) {
922: if (exists($localsize{$testing})) {
923: if ($stdsizes->{$testing} == $localsize{$testing}) {
924: $needs_download = 0;
925: $filetouse = 'loncapa-'.$testing.'.tar.gz';
926: }
927: }
928: }
929: if ($needs_download) {
930: if ($production) {
931: if (exists($localsize{$production})) {
932: if ($stdsizes->{$production} == $localsize{$production}) {
933: $needs_download = 0;
934: $filetouse = 'loncapa-'.$production.'.tar.gz';
935: }
936: }
937: }
938: }
939: if ($needs_download) {
940: my @sorted = sort { $b <=> $a } keys(%bymodtime);
941: my $newest = $sorted[0];
942: if (ref($bymodtime{$newest}) eq 'ARRAY') {
943: $downloadstatus =
944: "Latest LON-CAPA source download in $rootdir is: ".
945: join(',',@{$bymodtime{$newest}})." (downloaded ".
946: localtime($newest).")\n";
947: }
948: } else {
949: $downloadstatus =
950: "The $rootdir directory already contains the latest LON-CAPA version:".
951: "\n".$filetouse."\n"."which can be used for installation.\n";
952: }
953: } else {
954: $downloadstatus = "The $rootdir directory does not appear to contain any downloaded LON-CAPA source code files which can be used for installation.\n";
955: }
956: }
957: } else {
958: $downloadstatus = "Could not open $rootdir directory to look for existing downloads of LON-CAPA source code.\n";
959: }
960: return ($needs_download,$downloadstatus,$filetouse,$production,$testing);
961: }
962:
963: sub check_mysql_setup {
1.34 raeburn 964: my ($instdir,$dsn,$distro,$mysql_has_wwwuser) = @_;
1.1 raeburn 965: my ($mysqlsetup,$has_pass);
966: my $dbh = DBI->connect($dsn,'root','',{'PrintError'=>0});
967: if ($dbh) {
968: $mysqlsetup = 'noroot';
969: } elsif ($DBI::err =~ /1045/) {
970: $has_pass = 1;
1.34 raeburn 971: } elsif ($distro =~ /^ubuntu(\d+)$/) {
972: my $version = $1;
973: if ($1 > 12) {
974: print_and_log(&mt('Restarting mysql, please be patient')."\n");
975: if (open (PIPE, "service mysql restart 2>&1 |")) {
976: while (<PIPE>) {
977: print $_;
978: }
979: close(PIPE);
980: }
981: unless ($mysql_has_wwwuser) {
982: $mysql_has_wwwuser = &check_mysql_wwwuser();
983: }
984: $dbh = DBI->connect($dsn,'root','',{'PrintError'=>0});
985: if ($dbh) {
986: $mysqlsetup = 'noroot';
987: } elsif ($DBI::err =~ /1045/) {
988: $has_pass = 1;
989: } else {
990: $mysqlsetup = 'needsrestart';
991: return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser);
992: }
993: }
1.1 raeburn 994: }
995: if ($has_pass) {
996: print &mt('You have already set a root password for the MySQL database.')."\n";
997: my $currpass = &get_mysql_password(&mt('Please enter the password now'));
998: $dbh = DBI->connect($dsn,'root',$currpass,{'PrintError'=>0});
999: if ($dbh) {
1000: $mysqlsetup = 'rootok';
1001: print_and_log(&mt('Password accepted.')."\n");
1002: } else {
1003: $mysqlsetup = 'rootfail';
1004: print_and_log(&mt('Problem accessing MySQL.')."\n");
1005: if ($DBI::err =~ /1045/) {
1006: print_and_log(&mt('Perhaps the password was incorrect?')."\n");
1007: print &mt('Try again?').' ';
1008: $currpass = &get_mysql_password(&mt('Re-enter password now'));
1009: $dbh = DBI->connect($dsn,'root',$currpass,{'PrintError'=>0});
1010: if ($dbh) {
1011: $mysqlsetup = 'rootok';
1012: print_and_log(&mt('Password accepted.')."\n");
1013: } else {
1014: if ($DBI::err =~ /1045/) {
1015: print_and_log(&mt('Incorrect password.')."\n");
1016: }
1017: }
1018: }
1019: }
1.34 raeburn 1020: } elsif ($mysqlsetup ne 'noroot') {
1.1 raeburn 1021: print_and_log(&mt('Problem accessing MySQL.')."\n");
1022: $mysqlsetup = 'rootfail';
1023: }
1.34 raeburn 1024: return ($mysqlsetup,$has_pass,$dbh,$mysql_has_wwwuser);
1.1 raeburn 1025: }
1026:
1027: sub check_mysql_wwwuser {
1028: my $mysql_wwwuser;
1.12 raeburn 1029: my $dbhn = DBI->connect("DBI:mysql:database=information_schema",'www','localhostkey',
1030: {PrintError => +0}) || return;
1.1 raeburn 1031: if ($dbhn) {
1032: $mysql_wwwuser = 1;
1033: $dbhn->disconnect;
1034: }
1035: return $mysql_wwwuser;
1036: }
1037:
1038: sub check_loncapa_mysqldb {
1039: my ($dbh) = @_;
1040: my $has_lcdb;
1041: if (ref($dbh)) {
1042: my $sth = $dbh->prepare("SHOW DATABASES");
1043: $sth->execute();
1044: while (my $dbname = $sth->fetchrow_array) {
1045: if ($dbname eq 'loncapa') {
1046: $has_lcdb = 1;
1047: last;
1048: }
1049: }
1050: $sth->finish();
1051: }
1052: return $has_lcdb;
1053: }
1054:
1055: sub get_pathto_iptables {
1056: my $iptables;
1057: if (-e '/sbin/iptables') {
1058: $iptables = '/sbin/iptables';
1059: } elsif (-e '/usr/sbin/iptables') {
1060: $iptables = '/usr/sbin/iptables';
1061: } else {
1062: print &mt('Unable to find iptables command.')."\n";
1063: }
1064: return $iptables;
1065: }
1066:
1067: sub firewall_is_active {
1068: if (-e '/proc/net/ip_tables_names') {
1069: return 1;
1070: } else {
1071: return 0;
1072: }
1073: }
1074:
1075: sub get_fw_chains {
1.5 raeburn 1076: my ($iptables,$distro) = @_;
1.1 raeburn 1077: my @fw_chains;
1078: my $suse_config = "/etc/sysconfig/SuSEfirewall2";
1079: my $ubuntu_config = "/etc/ufw/ufw.conf";
1080: if (-e $suse_config) {
1081: push(@fw_chains,'input_ext');
1082: } else {
1083: my @posschains;
1084: if (-e $ubuntu_config) {
1085: @posschains = ('ufw-user-input','INPUT');
1.5 raeburn 1086: } elsif ($distro =~ /^debian5/) {
1087: @posschains = ('INPUT');
1.1 raeburn 1088: } else {
1089: @posschains = ('RH-Firewall-1-INPUT','INPUT');
1090: if (!-e '/etc/sysconfig/iptables') {
1091: if (!-e '/var/lib/iptables') {
1092: print &mt('Unable to find iptables file containing static definitions.')."\n";
1093: }
1094: push(@fw_chains,'RH-Firewall-1-INPUT');
1095: }
1096: }
1097: if ($iptables eq '') {
1098: $iptables = &get_pathto_iptables();
1099: }
1100: my %counts;
1101: if (open(PIPE,"$iptables -L -n |")) {
1102: while(<PIPE>) {
1103: foreach my $chain (@posschains) {
1104: if (/(\Q$chain\E)/) {
1105: $counts{$1} ++;
1106: }
1107: }
1108: }
1109: close(PIPE);
1110: }
1111: foreach my $fw_chain (@posschains) {
1112: if ($counts{$fw_chain}) {
1113: unless(grep(/^\Q$fw_chain\E$/,@fw_chains)) {
1114: push(@fw_chains,$fw_chain);
1115: }
1116: }
1117: }
1118: }
1119: return @fw_chains;
1120: }
1121:
1122: sub firewall_is_port_open {
1123: my ($iptables,$fw_chain,$port) = @_;
1124: # returns 1 if the firewall port is open, 0 if not.
1125: #
1126: # check if firewall is active or installed
1127: return if (! &firewall_is_active());
1128: my $count = 0;
1129: if (open(PIPE,"$iptables -L $fw_chain -n |")) {
1130: while(<PIPE>) {
1131: if (/tcp dpt\:\Q$port\E/) {
1132: $count ++;
1133: last;
1134: }
1135: }
1136: close(PIPE);
1137: } else {
1138: print &mt('Firewall status not checked: unable to run [_1].','iptables -L')."\n";
1139: }
1140: return $count;
1141: }
1142:
1143: sub get_mysql_password {
1144: my ($prompt) = @_;
1145: local $| = 1;
1146: print $prompt.': ';
1147: my $newpasswd = '';
1148: ReadMode 'raw';
1149: my $key;
1150: while(ord($key = ReadKey(0)) != 10) {
1151: if(ord($key) == 127 || ord($key) == 8) {
1152: chop($newpasswd);
1153: print "\b \b";
1154: } elsif(!ord($key) < 32) {
1155: $newpasswd .= $key;
1156: print '*';
1157: }
1158: }
1159: ReadMode 'normal';
1160: print "\n";
1161: return $newpasswd;
1162: }
1163:
1164: sub check_SuSEfirewall2_setup {
1165: my ($instdir) = @_;
1166: my $need_override = 1;
1.9 raeburn 1167: if ((-e "/etc/insserv/overrides/SuSEfirewall2_setup") && (-e "$instdir/sles-suse/SuSEfirewall2_setup")) {
1168: if (open(PIPE, "diff --brief $instdir/sles-suse/SuSEfirewall2_setup /etc/insserv/overrides/SuSEfirewall2_setup |")) {
1.1 raeburn 1169: my $diffres = <PIPE>;
1170: close(PIPE);
1171: chomp($diffres);
1172: unless ($diffres) {
1173: $need_override = 0;
1174: }
1175: }
1176: }
1177: return $need_override;
1178: }
1179:
1180: sub download_versionslist {
1181: my ($production,$testing,%sizes);
1182: if (-e "latest.txt") {
1183: unlink("latest.txt");
1184: }
1185: my $rtncode = system("wget http://install.loncapa.org/versions/latest.txt ".
1186: "> /dev/null 2>&1");
1187: if (!$rtncode) {
1188: if (open(my $fh,"<latest.txt")) {
1189: my @info = <$fh>;
1190: close($fh);
1191: foreach my $line (@info) {
1192: chomp();
1193: if ($line =~ /^\QLATEST-IS: \E([\w\-.]+):(\d+)$/) {
1194: $production = $1;
1195: $sizes{$1} = $2;
1196: } elsif ($line =~ /^LATEST-TESTING-IS: \E([\w\-.]+):(\d+)$/) {
1197: $testing = $1;
1198: $sizes{$1} = $2;
1199: }
1200: }
1201: }
1202: }
1203: return ($production,$testing,\%sizes);
1204: }
1205:
1206: #
1207: # End helper routines.
1208: # Main script starts here
1209: #
1210:
1211: print "
1212: ********************************************************************
1213:
1214: ".&mt('Welcome to LON-CAPA')."
1215:
1216: ".&mt('This script will configure your system for installation of LON-CAPA.')."
1217:
1218: ********************************************************************
1219:
1220: ".&mt('The following actions are available:')."
1221:
1.4 raeburn 1222: ".&mt('1.')." ".&mt('Create the www user/group.')."
1.1 raeburn 1223: ".&mt('This is the user/group ownership under which Apache child processes run.')."
1224: ".&mt('It also owns most directories within the /home/httpd directory.')."
1225: ".&mt('This directory is where most LON-CAPA files and directories are stored.')."
1.4 raeburn 1226: ".&mt('2.')." ".&mt('Install the package LON-CAPA uses to authenticate users.')."
1227: ".&mt('3.')." ".&mt('Set-up the MySQL database.')."
1228: ".&mt('4.')." ".&mt('Set-up MySQL permissions.')."
1229: ".&mt('5.')." ".&mt('Configure Apache web server.')."
1230: ".&mt('6.')." ".&mt('Configure start-up of services.')."
1231: ".&mt('7.')." ".&mt('Check firewall settings.')."
1232: ".&mt('8.')." ".&mt('Stop services not used by LON-CAPA,')."
1.1 raeburn 1233: ".&mt('i.e., services for a print server: [_1] daemon.',"'cups'")."
1.4 raeburn 1234: ".&mt('9.')." ".&mt('Download LON-CAPA source code in readiness for installation.')."
1.1 raeburn 1235:
1236: ".&mt('Typically, you will run this script only once, when you first install LON-CAPA.')."
1237:
1238: ".&mt('The script will analyze your system to determine which actions are recommended.')."
1239: ".&mt('The script will then prompt you to choose the actions you would like taken.')."
1240:
1241: ".&mt('For each the recommended action will be selected if you hit Enter/Return.')."
1242: ".&mt('To override the default, type the lower case option from the two options listed.')."
1243: ".&mt('So, if the default is "yes", ~[Y/n~] will be shown -- type n to override.')."
1244: ".&mt('Whereas if the default is "no", ~[y/N~] will be shown -- type y to override.')."
1245:
1246: ".&mt('To accept the default, simply hit Enter/Return on your keyboard.')."
1247: ".&mt('Otherwise type: y or n then hit the Enter/Return key.')."
1248:
1249: ".&mt('Once a choice has been entered for all nine actions, required changes will be made.')."
1250: ".&mt('Feedback will be displayed on screen, and also stored in: [_1].','loncapa_install.log')."
1251:
1252: ".&mt('Continue? ~[Y/n~] ');
1253:
1254: my $go_on = &get_user_selection(1);
1255: if (!$go_on) {
1256: exit;
1257: }
1258:
1259: my $instdir = `pwd`;
1260: chomp($instdir);
1261:
1262: my %callsub;
1263: my @actions = ('wwwuser','pwauth','mysql','mysqlperms','apache',
1264: 'runlevels','firewall','stopsrvcs','download');
1265: my %prompts = &texthash(
1266: wwwuser => "Create the 'www' user?",
1267: pwauth => 'Install the package LON-CAPA uses to authenticate users?',
1268: mysql => 'Set-up the MySQL database?',
1269: mysqlperms => 'Set-up MySQL permissions?',
1270: apache => 'Configure Apache web server?',
1271: runlevels => 'Set overrides for start-up order of services?',
1272: firewall => 'Configure firewall settings for Apache',
1273: stopsrvcs => 'Stop extra services not required on a LON-CAPA server?',
1274: download => 'Download LON-CAPA source code in readiness for installation?',
1275: );
1276:
1277: print "\n".&mt('Checking system status ...')."\n";
1278:
1279: my $dsn = "DBI:mysql:database=mysql";
1.34 raeburn 1280: my ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,$mysqlrestart,
1281: $recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus,$filetouse,$production,
1.35 raeburn 1282: $testing,$apachefw,$uses_systemctl) = &check_required($instdir,$dsn);
1.1 raeburn 1283: if ($distro eq '') {
1284: print "\n".&mt('Linux distribution could not be verified as a supported distribution.')."\n".
1285: &mt('The following are supported: [_1].',
1286: 'CentOS, RedHat Enterprise, Fedora, Scientific Linux, '.
1287: 'openSuSE, SLES, Ubuntu LTS, Debian')."\n\n".
1288: &mt('Stopping execution.')."\n";
1289: exit;
1290: }
1.34 raeburn 1291: if ($mysqlrestart) {
1292: print "\n".&mt('The mysql daemon needs to be restarted using the following command:')."\n".
1293: $mysqlrestart."\n\n".
1294: &mt('Stopping execution of install.pl script.')."\n".
1295: &mt('Please run the install.pl script again, once you have restarted mysql.')."\n";
1296: exit;
1297: }
1.6 raeburn 1298: if ($localecmd ne '') {
1299: print "\n".&mt('Although the LON-CAPA application itself is localized for a number of different languages, the default locale language for the Linux OS on which it runs should be US English.')."\n";
1300: print "\n".&mt('Run the following command from the command line to set the default language for your OS, and then run this LON-CAPA installation set-up script again.')."\n\n".
1301: $localecmd."\n\n".
1302: &mt('Stopping execution.')."\n";
1303: exit;
1304: }
1.1 raeburn 1305: if (!$gotprereqs) {
1.12 raeburn 1306: print "\n".&mt('The LONCAPA-prerequisites package is not installed.')."\n".
1.1 raeburn 1307: &mt('The following command can be used to install the package (and dependencies):')."\n\n".
1308: $updatecmd."\n\n";
1309: if ($installnow eq '') {
1310: print &mt('Stopping execution.')."\n";
1311: exit;
1312: } else {
1313: print &mt('Run command? ~[Y/n~]');
1314: my $install_prereq = &get_user_selection(1);
1315: if ($install_prereq) {
1316: if (open(PIPE,'|-',$installnow)) {
1317: close(PIPE);
1318: $gotprereqs = &check_prerequisites($packagecmd,$distro);
1319: if (!$gotprereqs) {
1.12 raeburn 1320: print &mt('The LONCAPA-prerequisites package is not installed.')."\n".
1.1 raeburn 1321: &mt('Stopping execution.')."\n";
1322: exit;
1323: } else {
1.6 raeburn 1324: ($distro,$gotprereqs,$localecmd,$packagecmd,$updatecmd,$installnow,
1.34 raeburn 1325: $mysqlrestart,$recommended,$dbh,$has_pass,$has_lcdb,$downloadstatus,
1.35 raeburn 1326: $filetouse,$production,$testing,$apachefw,$uses_systemctl) =
1.5 raeburn 1327: &check_required($instdir,$dsn);
1.1 raeburn 1328: }
1329: } else {
1.12 raeburn 1330: print &mt('Failed to run command to install LONCAPA-prerequisites')."\n";
1.1 raeburn 1331: exit;
1332: }
1333: } else {
1334: print &mt('Stopping execution.')."\n";
1335: exit;
1336: }
1337: }
1338: }
1339: unless (ref($recommended) eq 'HASH') {
1340: print "\n".&mt('An error occurred determining which actions are recommended.')."\n\n".
1341: &mt('Stopping execution.')."\n";
1342: exit;
1343: }
1344:
1345: print "\n";
1346: my $num = 0;
1347: foreach my $action (@actions) {
1348: $num ++;
1349: my ($yesno,$defaultrun);
1350: if (ref($recommended) eq 'HASH') {
1.4 raeburn 1351: if (($action eq 'runlevels') || ($action eq 'stopsrvcs')) {
1.1 raeburn 1352: $yesno = '[y/N]';
1353: if (ref($recommended->{$action}) eq 'HASH') {
1354: if (keys(%{$recommended->{$action}}) > 0) {
1355: $yesno = &mt('~[Y/n~]');
1356: $defaultrun = 1;
1357: }
1358: }
1359: } else {
1360: if ($action eq 'download') {
1361: if ($downloadstatus) {
1362: print "\n$downloadstatus\n";
1363: }
1364: }
1365: if ($recommended->{$action}) {
1366: $yesno = mt('~[Y/n~]');
1367: $defaultrun = 1;
1368: } else {
1369: $yesno = &mt('~[y/N~]');
1370: }
1371: }
1372: print $num.'. '.$prompts{$action}." $yesno ";
1373: $callsub{$action} = &get_user_selection($defaultrun);
1374: }
1375: }
1376:
1377: my $lctarball = 'loncapa-current.tar.gz';
1378: my $sourcetarball = $lctarball;
1379: if ($callsub{'download'}) {
1380: my ($production,$testing,$sizes) = &download_versionslist();
1381: if ($production && $testing) {
1382: if ($production ne $testing) {
1383: print &mt('Two recent LON-CAPA releases are available: ')."\n".
1.3 raeburn 1384: &mt('1.').' '.&mt('A production release - version: [_1].',$production)."\n".
1385: &mt('2.').' '.&mt('A testing release - version: [_1].',$testing)."\n\n".
1.1 raeburn 1386: &mt('Download the production release? ~[Y/n~]');
1387: if (&get_user_selection(1)) {
1.4 raeburn 1388: $sourcetarball = 'loncapa-'.$production.'.tar.gz';
1.1 raeburn 1389: } else {
1390: print "\n".&mt('Download the testing release? ~[Y/n~]');
1391: if (&get_user_selection(1)) {
1.4 raeburn 1392: $sourcetarball = 'loncapa-'.$testing.'.tar.gz';
1.1 raeburn 1393: }
1394: }
1395: }
1396: } elsif ($production) {
1397: print &mt('The most recent LON-CAPA release is version: [_1].',$production)."\n".
1398: &mt('Download the production release? ~[Y/n~]');
1399: if (&get_user_selection(1)) {
1.20 raeburn 1400: $sourcetarball = 'loncapa-'.$production.'.tar.gz';
1.1 raeburn 1401: }
1402: }
1403: } elsif ($filetouse ne '') {
1404: $sourcetarball = $filetouse;
1405: }
1406:
1407: print_and_log("\n");
1408:
1409: # Each action: report if skipping, or perform action and provide feedback.
1410: if ($callsub{'wwwuser'}) {
1411: &setup_www();
1412: } else {
1413: &print_and_log(&mt('Skipping creation of user [_1].',"'www'")."\n");
1414: }
1415:
1416: if ($callsub{'pwauth'}) {
1.4 raeburn 1417: &build_and_install_mod_auth_external($instdir);
1.1 raeburn 1418: } else {
1419: &print_and_log(&mt('Skipping [_1] installation.',"'pwauth'")."\n");
1420: }
1421:
1422: if ($callsub{'mysql'}) {
1423: if ($dbh) {
1424: &setup_mysql($callsub{'mysqlperms'},$distro,$dbh,$has_pass,$has_lcdb);
1425: } else {
1426: print &mt('Unable to configure MySQL because access is denied.')."\n";
1427: }
1428: } else {
1429: &print_and_log(&mt('Skipping configuration of MySQL.')."\n");
1430: if ($callsub{'mysqlperms'}) {
1431: if ($dbh) {
1432: &setup_mysql_permissions($dbh,$has_pass);
1433: } else {
1434: print &mt('Unable to configure MySQL because access is denied.')."\n";
1435: }
1436: } else {
1437: &print_and_log(&mt('Skipping MySQL permissions setup.')."\n");
1438: }
1439: }
1440:
1441: if ($dbh) {
1442: if (!$dbh->disconnect) {
1443: &print_and_log(&mt('Failed to disconnect from MySQL:')."\n".
1444: $dbh->errstr);
1445: }
1446: }
1447:
1448: if ($callsub{'apache'}) {
1449: if ($distro =~ /^(suse|sles)/) {
1450: ©_apache2_suseconf($instdir);
1451: } elsif ($distro =~ /^(debian|ubuntu)/) {
1.28 raeburn 1452: ©_apache2_debconf($instdir,$distro);
1.1 raeburn 1453: } else {
1.14 raeburn 1454: ©_httpd_conf($instdir,$distro);
1.1 raeburn 1455: }
1456: } else {
1457: print_and_log(&mt('Skipping configuration of Apache web server.')."\n");
1458: }
1459:
1460: if ($callsub{'runlevels'}) {
1461: my $count = 0;
1462: if (ref($recommended) eq 'HASH') {
1463: if (ref($recommended->{'runlevels'}) eq 'HASH') {
1464: foreach my $type (keys(%{$recommended->{'runlevels'}})) {
1465: next if ($type eq 'insserv');
1466: $count ++;
1467: my $command = $recommended->{'runlevels'}{$type};
1468: if ($command ne '') {
1469: print_and_log(&mt('Runlevel update command run: [_1].',$command)."\n");
1470: system($command);
1471: }
1472: }
1473: if (!$count) {
1474: print_and_log(&mt('No runlevel updates required.')."\n");
1475: }
1476: }
1477: }
1.11 raeburn 1478: if ($distro =~ /^(suse|sles)/) {
1479: &update_SuSEfirewall2_setup($instdir);
1480: }
1.1 raeburn 1481: } else {
1482: &print_and_log(&mt('Skipping setting override for start-up order of services.')."\n");
1483: }
1484:
1485: if ($callsub{'firewall'}) {
1486: if ($distro =~ /^(suse|sles)/) {
1.5 raeburn 1487: print &mt('Use [_1] to configure the firewall to allow access for [_2].',
1488: 'yast -- Security and Users -> Firewall -> Interfaces',
1489: 'ssh, http, https')."\n";
1490: } elsif ($distro =~ /^(debian|ubuntu)(\d+)/) {
1491: if (($1 eq 'ubuntu') || ($2 > 5)) {
1492: print &mt('Use [_1] to configure the firewall to allow access for [_2].',
1493: 'ufw','ssh, http, https')."\n";
1494: } else {
1495: my $fwadded = &get_iptables_rules($distro,$instdir,$apachefw);
1496: if ($fwadded) {
1497: print &mt('Enable firewall? ~[Y/n~]');
1498: my $enable_iptables = &get_user_selection(1);
1499: if ($enable_iptables) {
1500: system('/etc/network/if-pre-up.d/iptables');
1501: print &mt('Firewall enabled using rules defined in [_1].',
1502: '/etc/iptables.loncapa.rules');
1503: }
1504: }
1505: }
1.11 raeburn 1506: } elsif ($distro =~ /^scientific/) {
1507: print &mt('Use [_1] to configure the firewall to allow access for [_2].',
1508: 'system-config-firewall-tui -- Customize',
1509: 'ssh, http')."\n";
1.1 raeburn 1510: } else {
1.5 raeburn 1511: print &mt('Use [_1] to configure the firewall to allow access for [_2].',
1.11 raeburn 1512: 'setup -- Firewall configuration -> Customize',
1.5 raeburn 1513: 'ssh, http, https')."\n";
1.1 raeburn 1514: }
1515: } else {
1.5 raeburn 1516: &print_and_log(&mt('Skipping Firewall configuration.')."\n");
1.1 raeburn 1517: }
1518:
1519: if ($callsub{'stopsrvcs'}) {
1520: &kill_extra_services($distro,$recommended->{'stopsrvcs'});
1521: } else {
1.10 raeburn 1522: &print_and_log(&mt('Skipping stopping unnecessary service ([_1] daemons).',"'cups','memcached'")."\n");
1.1 raeburn 1523: }
1524:
1525: my ($have_tarball,$updateshown);
1526: if ($callsub{'download'}) {
1527: ($have_tarball,$updateshown) = &download_loncapa($instdir,$sourcetarball);
1528: } else {
1529: print_and_log(&mt('Skipping download of LON-CAPA tar file.')."\n\n");
1530: print &mt('LON-CAPA is available for download from: [_1]',
1531: 'http://install.loncapa.org/')."\n";
1532: if (!-e '/etc/loncapa-release') {
1533: &print_and_log(&mt('LON-CAPA is not yet installed on your system.').
1534: "\n\n".
1535: &mt('You may retrieve the source for LON-CAPA by executing:')."\n".
1536: "wget http://install.loncapa.org/versions/$lctarball\n");
1537: } else {
1538: my $currentversion;
1539: if (open(my $fh,"</etc/loncapa-release")) {
1540: my $version = <$fh>;
1541: chomp($version);
1542: if ($version =~ /^\QLON-CAPA release \E([\w\-.]+)$/) {
1543: $currentversion = $1;
1544: }
1545: }
1546: if ($currentversion ne '') {
1547: print &mt('Version of LON-CAPA currently installed on this server is: [_1].',
1548: $currentversion),"\n";
1549: if ($production) {
1550: print &mt('The latest production release of LON-CAPA is [_1].',$production)."\n";
1551: }
1552: if ($testing) {
1553: print &mt('The latest testing release of LON-CAPA is [_1].',$testing)."\n";
1554: }
1555: }
1556: }
1557: if ($filetouse ne '') {
1558: $have_tarball = 1;
1559: }
1560: }
1561:
1562: print "\n".&mt('Requested configuration complete.')."\n\n";
1563: my $apachename;
1564: if ($have_tarball && !$updateshown) {
1565: my ($lcdir) = ($sourcetarball =~ /^([\w.\-]+)\.tar.gz$/);
1566: if (!-e '/etc/loncapa-release') {
1567: print &mt('If you are now ready to install LON-CAPA, enter the following commands:')."\n\n";
1568: } else {
1569: print &mt('If you are now ready to update LON-CAPA, enter the following commands:')."\n\n".
1570: "/etc/init.d/loncontrol stop\n";
1571: if ($distro =~ /^(suse|sles|debian|ubuntu)([\d.]+)/) {
1572: if (($1 eq 'suse') && ($2 < 10)) {
1573: $apachename = 'apache';
1574: } else {
1575: $apachename = 'apache2';
1576: }
1577: } else {
1578: $apachename = 'httpd';
1579: }
1580: print "/etc/init.d/$apachename stop\n";
1581: }
1582: print "cd /root\n".
1583: "tar zxf $sourcetarball\n".
1584: "cd $lcdir\n".
1585: "./UPDATE\n";
1586: if (-e '/etc/loncapa-release') {
1587: print "/etc/init.d/loncontrol start\n";
1588: print "/etc/init.d/$apachename start\n";
1589: }
1590: }
1591: exit;
1592:
1593: #
1594: # End main script
1595: #
1596:
1597: #
1598: # Routines for the actions
1599: #
1600:
1601: sub setup_www {
1602: ##
1603: ## Set up www
1604: ##
1605: print_and_log(&mt('Creating user [_1]',"'www'")."\n");
1606: # -- Add group
1607:
1608: my $status = `/usr/sbin/groupadd www`;
1609: if ($status =~ /\QGroup `www' already exists.\E/) {
1610: print &mt('Group [_1] already exists.',"'www'")."\n";
1611: } elsif ($status ne '') {
1612: print &mt('Unable to add group [_1].',"'www'")."\n";
1613: }
1614:
1615: my $gid = getgrnam('www');
1616:
1617: if (open (PIPE, "/usr/sbin/useradd -c LONCAPA -g $gid www 2>&1 |")) {
1618: $status = <PIPE>;
1619: close(PIPE);
1620: chomp($status);
1621: if ($status =~ /\QAccount `www' already exists.\E/) {
1622: print &mt('Account [_1] already exists.',"'www'")."\n";
1623: } elsif ($status ne '') {
1624: print &mt('Unable to add user [_1].',"'www'")."\n";
1625: }
1626: } else {
1627: print &mt('Unable to run command to add user [_1].',"'www'")."\n";
1628: }
1629:
1630: my $uid = &uid_of_www();
1631: if (($gid ne '') && ($uid ne '')) {
1632: if (!-e '/home/www') {
1633: mkdir('/home/www',0755);
1634: system('chown www:www /home/www');
1635: }
1636: }
1637: writelog ($status);
1638: }
1639:
1640: sub uid_of_www {
1641: my ($num) = (getpwnam('www'))[2];
1642: return $num;
1643: }
1644:
1645: sub build_and_install_mod_auth_external {
1646: my ($instdir) = @_;
1647: my $num = &uid_of_www();
1648: # Patch pwauth
1649: print_and_log(&mt('Building authentication system for LON-CAPA users.')."\n");
1650: my $patch = <<"ENDPATCH";
1651: 148c148
1652: < #define SERVER_UIDS 99 /* user "nobody" */
1653: ---
1654: > #define SERVER_UIDS $num /* user "www" */
1655: ENDPATCH
1656:
1657: if (! -e "/usr/bin/patch") {
1658: print_and_log(&mt('You must install the software development tools package: [_1], when installing Linux.',"'patch'")."\n");
1659: print_and_log(&mt('Authentication installation not completed.')."\n");
1660: return;
1661: }
1662: if (&skip_if_nonempty(`cd /tmp; tar zxf $instdir/pwauth-2.2.8.tar.gz`,
1663: &mt('Unable to extract pwauth')."\n")) {
1664: return;
1665: }
1666: my $dir = "/tmp/pwauth-2.2.8";
1667: if (open(PATCH,"| patch $dir/config.h")) {
1668: print PATCH $patch;
1669: close(PATCH);
1670: print_and_log("\n");
1671: ##
1672: ## Compile patched pwauth
1673: ##
1674: print_and_log(&mt('Compiling pwauth')."\n");
1.12 raeburn 1675: my $result = `cd $dir/; make 2>/dev/null `;
1.1 raeburn 1676: my $expected = <<"END";
1677: gcc -g -c -o pwauth.o pwauth.c
1678: gcc -o pwauth -g pwauth.o -lcrypt
1679: END
1680: if ($result eq $expected) {
1681: print_and_log(&mt('Apparent success compiling pwauth:').
1682: "\n".$result );
1683: # Install patched pwauth
1684: print_and_log(&mt('Copying pwauth to [_1]',' /usr/local/sbin')."\n");
1685: if (copy "$dir/pwauth","/usr/local/sbin/pwauth") {
1.5 raeburn 1686: if (chmod(06755, "/usr/local/sbin/pwauth")) {
1.1 raeburn 1687: print_and_log(&mt('[_1] copied successfully',"'pwauth'").
1688: "\n");
1689: } else {
1690: print &mt('Unable to set permissions on [_1].'.
1691: "/usr/local/sbin/pwauth")."\n";
1692: }
1693: } else {
1694: print &mt('Unable to copy [_1] to [_2]',
1695: "'$dir/pwauth'","/usr/local/sbin/pwauth")."\n$!\n";
1696: }
1697: } else {
1698: print &mt('Unable to compile patched [_1].'."'pwauth'")."\n";
1699: }
1700: } else {
1701: print &mt('Unable to start patch for [_1]',"'pwauth'")."\n";
1702: }
1703: print_and_log("\n");
1704: }
1705:
1706: sub kill_extra_services {
1707: my ($distro,$stopsrvcs) = @_;
1708: if (ref($stopsrvcs) eq 'HASH') {
1709: my @stopping = sort(keys(%{$stopsrvcs}));
1710: if (@stopping) {
1.6 raeburn 1711: my $kill_list = join("', '",@stopping);
1.1 raeburn 1712: if ($kill_list) {
1713: $kill_list = "'".$kill_list."'";
1.6 raeburn 1714: &print_and_log("\n".&mt('Killing unnecessary services ([_1] daemon(s)).',$kill_list)."\n");
1715: foreach my $service (@stopping) {
1716: my $daemon = $service;
1717: if ($service eq 'cups') {
1718: $daemon = 'cupsd';
1719: if ($distro =~ /^(?:debian|ubuntu)(\d+)/) {
1720: my $version = $1;
1721: if (($distro =~ /^ubuntu/) && ($version <= 8)) {
1722: $daemon = 'cupsys';
1723: }
1.12 raeburn 1724: } else {
1.8 raeburn 1725: $daemon = 'cups';
1.6 raeburn 1726: }
1727: }
1.12 raeburn 1728: my $cmd = "ps -ef |grep '$daemon' |grep -v grep";
1729: if (open(PIPE,'-|',$cmd)) {
1730: my $daemonrunning = <PIPE>;
1731: chomp($daemonrunning);
1732: close(PIPE);
1733: if ($daemonrunning) {
1734: &print_and_log(`/etc/init.d/$daemon stop`);
1735: }
1736: }
1.1 raeburn 1737: &print_and_log(&mt('Removing [_1] from startup.',$service)."\n");
1.4 raeburn 1738: if ($distro =~ /^(debian|ubuntu)/) {
1.6 raeburn 1739: &print_and_log(`update-rc.d -f $daemon remove`);
1.1 raeburn 1740: } else {
1.35 raeburn 1741: if (ref($uses_systemctl) eq 'HASH') {
1742: if ($uses_systemctl->{$service}) {
1743: if (`systemctl is-enabled $service`) {
1744: &print_and_log(`systemctl disable $service`);
1745: }
1746: } else {
1747: &print_and_log(`/sbin/chkconfig --del $service`);
1748: }
1749: } else {
1750: &print_and_log(`/sbin/chkconfig --del $service`);
1751: }
1.1 raeburn 1752: }
1753: }
1754: }
1755: }
1756: }
1757: return;
1758: }
1759:
1760: sub setup_mysql {
1761: my ($setup_mysql_permissions,$distro,$dbh,$has_pass,$has_lcdb) = @_;
1.4 raeburn 1762: my @mysql_lc_commands;
1.1 raeburn 1763: unless ($has_lcdb) {
1.4 raeburn 1764: push(@mysql_lc_commands,"CREATE DATABASE loncapa");
1.1 raeburn 1765: }
1.4 raeburn 1766: push(@mysql_lc_commands,"USE loncapa");
1767: push(@mysql_lc_commands,qq{
1.18 raeburn 1768: CREATE TABLE IF NOT EXISTS metadata (title TEXT, author TEXT, subject TEXT, url TEXT, keywords TEXT, version TEXT, notes TEXT, abstract TEXT, mime TEXT, language TEXT, creationdate DATETIME, lastrevisiondate DATETIME, owner TEXT, copyright TEXT, domain TEXT, dependencies TEXT, modifyinguser TEXT, authorspace TEXT, lowestgradelevel TEXT, highestgradelevel TEXT, standards TEXT, count INT, course INT, course_list TEXT, goto INT, goto_list TEXT, comefrom INT, comefrom_list TEXT, sequsage INT, sequsage_list TEXT, stdno INT, stdno_list TEXT, avetries FLOAT, avetries_list TEXT, difficulty FLOAT, difficulty_list TEXT, disc FLOAT, disc_list TEXT, clear FLOAT, technical FLOAT, correct FLOAT, helpful FLOAT, depth FLOAT, hostname TEXT, FULLTEXT idx_title (title), FULLTEXT idx_author (author), FULLTEXT idx_subject (subject), FULLTEXT idx_url (url), FULLTEXT idx_keywords (keywords), FULLTEXT idx_version (version), FULLTEXT idx_notes (notes), FULLTEXT idx_abstract (abstract), FULLTEXT idx_mime (mime), FULLTEXT idx_language (language), FULLTEXT idx_owner (owner), FULLTEXT idx_copyright (copyright)) ENGINE=MYISAM
1.4 raeburn 1769: });
1.1 raeburn 1770: if ($setup_mysql_permissions) {
1.4 raeburn 1771: &setup_mysql_permissions($dbh,$has_pass,@mysql_lc_commands);
1.1 raeburn 1772: } else {
1773: print_and_log(&mt('Skipping MySQL permissions setup.')."\n");
1774: if ($dbh) {
1.4 raeburn 1775: if (@mysql_lc_commands) {
1776: foreach my $lccmd (@mysql_lc_commands) {
1777: $dbh->do($lccmd) || print $dbh->errstr."\n";
1778: }
1779: }
1.1 raeburn 1780: print_and_log(&mt('MySQL database set up complete.')."\n");
1781: } else {
1782: print_and_log(&mt('Problem accessing MySQL.')."\n");
1783: }
1784: }
1785: }
1786:
1787: sub setup_mysql_permissions {
1.4 raeburn 1788: my ($dbh,$has_pass,@mysql_lc_commands) = @_;
1.36 raeburn 1789: my ($mysqlversion,$mysqlsubver) = &get_mysql_version();
1790: my ($usesauth,@mysql_commands);
1791: if (($mysqlversion > 5.7) || (($mysqlversion == 5.7) && ($mysqlsubver > 5))) {
1792: @mysql_commands = ("INSERT user (Host, User, ssl_cipher, x509_issuer, x509_subject) VALUES('localhost','www','','','')",
1793: "ALTER USER 'www'\@'localhost' IDENTIFIED BY 'localhostkey'");
1794: $usesauth = 1;
1795: } else {
1796: @mysql_commands = ("INSERT user (Host, User, Password) VALUES('localhost','www',password('localhostkey'));");
1797: }
1.1 raeburn 1798: if ($mysqlversion < 4) {
1.4 raeburn 1799: push (@mysql_commands,"
1800: INSERT db (Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv,Grant_priv,References_priv,Index_priv,Alter_priv) VALUES('localhost','loncapa','www','Y','Y','Y','Y','Y','Y','N','Y','Y','Y')");
1801: } else {
1802: push (@mysql_commands,"
1803: INSERT db (Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv,Grant_priv,References_priv,Index_priv,Alter_priv,Create_tmp_table_priv,Lock_tables_priv) VALUES('localhost','loncapa','www','Y','Y','Y','Y','Y','Y','N','Y','Y','Y','Y','Y')");
1.1 raeburn 1804: }
1.4 raeburn 1805: push(@mysql_commands,"DELETE FROM user WHERE host<>'localhost'");
1.1 raeburn 1806: if ($has_pass) {
1807: if ($dbh) {
1.4 raeburn 1808: push(@mysql_commands,"FLUSH PRIVILEGES");
1809: if (@mysql_commands) {
1810: foreach my $cmd (@mysql_commands) {
1811: $dbh->do($cmd) || print $dbh->errstr."\n";
1812: }
1813: }
1814: if (@mysql_lc_commands) {
1815: foreach my $lccmd (@mysql_lc_commands) {
1816: $dbh->do($lccmd) || print $dbh->errstr."\n";
1817: }
1818: }
1.1 raeburn 1819: print_and_log(&mt('Permissions set for LON-CAPA MySQL user: [_1]',"'www'")."\n");
1820: } else {
1821: print_and_log(&mt('Problem accessing MySQL.')."\n".
1822: &mt('Permissions not set.')."\n");
1823: }
1824: } else {
1825: my ($firstpass,$secondpass,$got_passwd,$newmysqlpass);
1826: print &mt('Please enter a root password for the mysql database.')."\n".
1827: &mt('It does not have to match your root account password, but you will need to remember it.')."\n";
1828: my $maxtries = 10;
1829: my $trial = 0;
1830: while ((!$got_passwd) && ($trial < $maxtries)) {
1831: $firstpass = &get_mysql_password(&mt('Enter password'));
1832: if (length($firstpass) > 5) {
1833: $secondpass = &get_mysql_password(&mt('Enter password a second time'));
1834: if ($firstpass eq $secondpass) {
1835: $got_passwd = 1;
1836: $newmysqlpass = $firstpass;
1837: } else {
1838: print(&mt('Passwords did not match. Please try again.')."\n");
1839: }
1840: $trial ++;
1841: } else {
1842: print(&mt('Password too short.')."\n".
1843: &mt('Please choose a password with at least six characters.')."\n");
1844: }
1845: }
1846: if ($got_passwd) {
1.4 raeburn 1847: my (@newpass_cmds) = &new_mysql_rootpasswd($newmysqlpass);
1848: push(@mysql_commands,@newpass_cmds);
1.1 raeburn 1849: } else {
1850: print_and_log(&mt('Failed to get MySQL root password from user input.')."\n");
1851: }
1852: if ($dbh) {
1.4 raeburn 1853: if (@mysql_commands) {
1854: foreach my $cmd (@mysql_commands) {
1855: $dbh->do($cmd) || print $dbh->errstr."\n";
1856:
1857: }
1858: }
1859: if (@mysql_lc_commands) {
1860: foreach my $lccmd (@mysql_lc_commands) {
1861: $dbh->do($lccmd) || print $dbh->errstr."\n";
1862: }
1863: }
1.1 raeburn 1864: if ($got_passwd) {
1865: print_and_log(&mt('MySQL root password stored.')."\n".
1866: &mt('Permissions set for LON-CAPA MySQL user: [_1].',"'www'")."\n");
1867: } else {
1868: print_and_log(&mt('Permissions set for LON-CAPA MySQL user: [_1].',"'www'")."\n");
1869: }
1870: } else {
1871: print_and_log(&mt('Problem accessing MySQL.')."\n".
1872: &mt('Permissions not set.')."\n");
1873: }
1874: }
1875: }
1876:
1877: sub new_mysql_rootpasswd {
1.36 raeburn 1878: my ($currmysqlpass,$usesauth) = @_;
1879: if ($usesauth) {
1880: return ("ALTER USER 'root'\@'localhost' IDENTIFIED BY '$currmysqlpass'",
1881: "FLUSH PRIVILEGES;");
1882: } else {
1883: return ("SET PASSWORD FOR 'root'\@'localhost'=PASSWORD('$currmysqlpass')",
1884: "FLUSH PRIVILEGES;");
1885: }
1.1 raeburn 1886: }
1887:
1888: sub get_mysql_version {
1.36 raeburn 1889: my ($version,$subversion);
1.1 raeburn 1890: if (open(PIPE," mysql -V |")) {
1891: my $info = <PIPE>;
1892: chomp($info);
1893: close(PIPE);
1.36 raeburn 1894: ($version,$subversion) = ($info =~ /(\d+\.\d+)\.(\d+)[\-\w]*,/);
1.1 raeburn 1895: } else {
1896: print &mt('Could not determine which version of MySQL is installed.').
1897: "\n";
1898: }
1.36 raeburn 1899: return ($version,$subversion);
1.1 raeburn 1900: }
1901:
1902: ###########################################################
1903: ##
1904: ## RHEL/CentOS/Fedora/Scientific Linux
1905: ## Copy LON-CAPA httpd.conf to /etc/httpd/conf
1906: ##
1907: ###########################################################
1908:
1909: sub copy_httpd_conf {
1.14 raeburn 1910: my ($instdir,$distro) = @_;
1911: my $configfile = 'httpd.conf';
1912: if ($distro =~ /^(?:centos|rhes|scientific)(\d+)$/) {
1.29 raeburn 1913: if ($1 >= 7) {
1914: $configfile = 'apache2.4/httpd.conf';
1915: } elsif ($1 > 5) {
1.14 raeburn 1916: $configfile = 'new/httpd.conf';
1917: }
1918: } elsif ($distro =~ /^fedora(\d+)$/) {
1.29 raeburn 1919: if ($1 > 17) {
1920: $configfile = 'apache2.4/httpd.conf';
1921: } elsif ($1 > 10) {
1.14 raeburn 1922: $configfile = 'new/httpd.conf';
1923: }
1924: }
1.1 raeburn 1925: print_and_log(&mt('Copying the LON-CAPA [_1] to [_2].',"'httpd.conf'",
1926: "'/etc/httpd/conf/httpd.conf'")."\n");
1927: copy "/etc/httpd/conf/httpd.conf","/etc/httpd/conf/httpd.conf.original";
1.14 raeburn 1928: copy "$instdir/centos-rhes-fedora-sl/$configfile","/etc/httpd/conf/httpd.conf";
1.5 raeburn 1929: chmod(0444,"/etc/httpd/conf/httpd.conf");
1.1 raeburn 1930: print_and_log("\n");
1931: }
1932:
1933: #########################################################
1934: ##
1.17 raeburn 1935: ## Ubuntu/Debian -- copy our loncapa configuration file to
1.1 raeburn 1936: ## sites-available and set the symlink from sites-enabled.
1937: ##
1938: #########################################################
1939:
1940: sub copy_apache2_debconf {
1.28 raeburn 1941: my ($instdir,$distro) = @_;
1.6 raeburn 1942: my $apache2_mods_enabled_dir = '/etc/apache2/mods-enabled';
1943: my $apache2_mods_available_dir = '/etc/apache2/mods-available';
1944: foreach my $module ('headers.load','expires.load') {
1945: unless (-l "$apache2_mods_enabled_dir/$module") {
1946: symlink("$apache2_mods_available_dir/$module","$apache2_mods_enabled_dir/$module");
1947: print_and_log(&mt('Enabling "[_1]" Apache module.',$module)."\n");
1948: }
1949: }
1.28 raeburn 1950: my $apache2_sites_enabled_dir = '/etc/apache2/sites-enabled';
1951: my $apache2_sites_available_dir = '/etc/apache2/sites-available';
1952: my $defaultconfig = "$apache2_sites_enabled_dir/000-default";
1953: my ($distname,$version);
1954: if ($distro =~ /^(debian|ubuntu)(\d+)$/) {
1955: $distname = $1;
1956: $version = $2;
1957: }
1958: if (($distname eq 'ubuntu') && ($version > 12)) {
1959: $defaultconfig = "$apache2_sites_enabled_dir/000-default.conf";
1960: }
1961: if (-l $defaultconfig) {
1962: unlink($defaultconfig);
1963: }
1964: if (($distname eq 'ubuntu') && ($version > 12)) {
1.32 raeburn 1965: print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from conf-enabled.',"'apache2'","'/etc/apache2/conf-available'","'loncapa.conf symlink'")."\n");
1.28 raeburn 1966: my $apache2_conf_enabled_dir = '/etc/apache2/conf-enabled';
1967: my $apache2_conf_available_dir = '/etc/apache2/conf-available';
1968: if (-e "$apache2_conf_available_dir/loncapa") {
1969: copy("$apache2_conf_available_dir/loncapa","$apache2_conf_available_dir/loncapa.original");
1970: }
1.33 raeburn 1971: my $defaultconf = $apache2_conf_enabled_dir.'/loncapa.conf';
1.32 raeburn 1972: copy("$instdir/debian-ubuntu/ubuntu14/loncapa_conf","$apache2_conf_available_dir/loncapa");
1.28 raeburn 1973: chmod(0444,"$apache2_conf_available_dir/loncapa");
1.32 raeburn 1974: if (-l $defaultconf) {
1975: unlink($defaultconf);
1976: }
1977: symlink("$apache2_conf_available_dir/loncapa","$defaultconf");
1978: print_and_log(&mt('Copying loncapa [_1] site file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default.conf symlink'")."\n");
1979: copy("$instdir/debian-ubuntu/ubuntu14/loncapa_site","$apache2_sites_available_dir/loncapa");
1980: chmod(0444,"$apache2_sites_available_dir/loncapa");
1981: symlink("$apache2_sites_available_dir/loncapa","$defaultconfig");
1.28 raeburn 1982: } else {
1983: print_and_log(&mt('Copying loncapa [_1] config file to [_2] and pointing [_3] to it from sites-enabled.',"'apache2'","'/etc/apache2/sites-available'","'000-default symlink'")."\n");
1984: if (-e "$apache2_sites_available_dir/loncapa") {
1985: copy("$apache2_sites_available_dir/loncapa","$apache2_sites_available_dir/loncapa.original");
1986: }
1987: copy("$instdir/debian-ubuntu/loncapa","$apache2_sites_available_dir/loncapa");
1988: chmod(0444,"$apache2_sites_available_dir/loncapa");
1989: symlink("$apache2_sites_available_dir/loncapa","$apache2_sites_enabled_dir/000-default");
1990: }
1.1 raeburn 1991: print_and_log("\n");
1992: }
1993:
1994: ###########################################################
1995: ##
1996: ## openSuSE/SLES Copy apache2 config files:
1997: ## default-server.conf, uid.conf, /etc/sysconfig/apache2
1998: ## and create symlink from /srv/www/conf to /etc/apache2
1999: ##
2000: ###########################################################
2001:
2002: sub copy_apache2_suseconf {
2003: my ($instdir) = @_;
2004: print_and_log(&mt('Copying the LON-CAPA [_1] to [_2].',
2005: "'default-server.conf'",
2006: "'/etc/apache2/default-server.conf'")."\n");
2007: if (!-e "/etc/apache2/default-server.conf.original") {
2008: copy "/etc/apache2/default-server.conf","/etc/apache2/default-server.conf.original";
2009: }
1.9 raeburn 2010: copy "$instdir/sles-suse/default-server.conf","/etc/apache2/default-server.conf";
1.5 raeburn 2011: chmod(0444,"/etc/apache2/default-server.conf");
1.1 raeburn 2012: # Make symlink for conf directory (included in loncapa_apache.conf)
2013: my $can_symlink = (eval { symlink('/etc/apache2','/srv/www/conf'); }, $@ eq '');
2014: if ($can_symlink) {
2015: &print_and_log(&mt('Symlink created for [_1] to [_2].',
2016: "'/srv/www/conf'","'/etc/apache2'")."\n");
2017: } else {
2018: &print_and_log(&mt('Symlink creation failed for [_1] to [_2]. You will need to perform this action from the command line.',"'/srv/www/conf'","'/etc/apache2'")."\n");
2019: }
2020: ©_apache2_conf_files($instdir);
2021: ©_sysconfig_apache2_file($instdir);
2022: print_and_log("\n");
2023: }
2024:
2025: ###############################################
2026: ##
2027: ## Modify uid.conf
2028: ##
2029: ###############################################
2030: sub copy_apache2_conf_files {
2031: my ($instdir) = @_;
2032: print_and_log(&mt('Copying the LON-CAPA [_1] to [_2].',
2033: "'uid.conf'","'/etc/apache2/uid.conf'")."\n");
2034: if (!-e "/etc/apache2/uid.conf.original") {
2035: copy "/etc/apache2/uid.conf","/etc/apache2/uid.conf.original";
2036: }
1.9 raeburn 2037: copy "$instdir/sles-suse/uid.conf","/etc/apache2/uid.conf";
1.5 raeburn 2038: chmod(0444,"/etc/apache2/uid.conf");
1.1 raeburn 2039: }
2040:
2041: ###############################################
2042: ##
2043: ## Modify /etc/sysconfig/apache2
2044: ##
2045: ###############################################
2046: sub copy_sysconfig_apache2_file {
2047: my ($instdir) = @_;
2048: print_and_log(&mt('Copying the LON-CAPA [_1] to [_2].',"'sysconfig/apache2'","'/etc/sysconfig/apache2'")."\n");
2049: if (!-e "/etc/sysconfig/apache2.original") {
2050: copy "/etc/sysconfig/apache2","/etc/sysconfig/apache2.original";
2051: }
1.9 raeburn 2052: copy "$instdir/sles-suse/sysconfig_apache2","/etc/sysconfig/apache2";
1.5 raeburn 2053: chmod(0444,"/etc/sysconfig/apache2");
1.1 raeburn 2054: }
2055:
2056: ###############################################
2057: ##
2058: ## Add/Modify /etc/insserv/overrides
2059: ##
2060: ###############################################
2061:
2062: sub update_SuSEfirewall2_setup {
2063: my ($instdir) = @_;
2064: print_and_log(&mt('Copying the LON-CAPA [_1] to [_2].',"'SuSEfirewall2_setup'","'/etc/insserv/overrides/SuSEfirewall2_setup'")."\n");
2065: if (!-e "/etc/insserv/overrides/SuSEfirewall2_setup") {
2066: if (!-d "/etc/insserv") {
2067: mkdir("/etc/insserv",0755);
2068: }
2069: if (!-d "/etc/insserv/overrides") {
2070: mkdir("/etc/insserv/overrides",0755);
2071: }
2072: } elsif (!-e "/etc/insserv/overrides/SuSEfirewall2_setup.original") {
2073: copy "/etc/insserv/overrides/SuSEfirewall2_setup","/etc/insserv/overrides/SuSEfirewall2_setup.original"
2074: }
1.9 raeburn 2075: copy "$instdir/sles-suse/SuSEfirewall2_setup","/etc/insserv/overrides/SuSEfirewall2_setup";
1.5 raeburn 2076: chmod(0444,"/etc/insserv/overrides/SuSEfirewall2_setup");
2077: }
2078:
2079: sub get_iptables_rules {
2080: my ($distro,$instdir,$apachefw) = @_;
2081: my (@fwchains,@ports);
2082: if (&firewall_is_active()) {
2083: my $iptables = &get_pathto_iptables();
2084: if ($iptables ne '') {
2085: @fwchains = &get_fw_chains($iptables,$distro);
2086: }
2087: }
2088: if (ref($apachefw) eq 'HASH') {
2089: foreach my $service ('http','https') {
2090: unless ($apachefw->{$service}) {
2091: push (@ports,$service);
2092: }
2093: }
2094: } else {
2095: @ports = ('http','https');
2096: }
2097: if (@ports == 0) {
2098: return;
2099: }
2100: my $ask_to_enable;
2101: if (-e "/etc/iptables.loncapa.rules") {
1.9 raeburn 2102: if (open(PIPE, "diff --brief $instdir/debian-ubuntu/iptables.loncapa.rules /etc/iptables.loncapa.rules |")) {
1.5 raeburn 2103: my $diffres = <PIPE>;
2104: close(PIPE);
2105: chomp($diffres);
2106: if ($diffres) {
2107: print &mt('Warning: [_1] exists but differs from LON-CAPA supplied file.','/etc/iptables.loncapa.rules')."\n";
2108: }
2109: } else {
2110: print &mt('Error: unable to open [_1] to compare contents with LON-CAPA supplied file.','/etc/iptables.loncapa.rules')."\n";
2111: }
2112: } else {
1.9 raeburn 2113: if (-e "$instdir/debian-ubuntu/iptables.loncapa.rules") {
2114: copy "$instdir/debian-ubuntu/iptables.loncapa.rules","/etc/iptables.loncapa.rules";
1.5 raeburn 2115: chmod(0600,"/etc/iptables.loncapa.rules");
2116: }
2117: }
2118: if (-e "/etc/iptables.loncapa.rules") {
2119: if (-e "/etc/network/if-pre-up.d/iptables") {
1.9 raeburn 2120: if (open(PIPE, "diff --brief $instdir/debian-ubuntu/iptables /etc/network/if-pre-up/iptables |")) {
1.5 raeburn 2121: my $diffres = <PIPE>;
2122: close(PIPE);
2123: chomp($diffres);
2124: if ($diffres) {
2125: print &mt('Warning: [_1] exists but differs from LON-CAPA supplied file.','/etc/network/if-pre-up.d/iptables')."\n";
2126: }
2127: } else {
2128: print &mt('Error: unable to open [_1] to compare contents with LON-CAPA supplied file.','/etc/network/if-pre-up.d/iptables')."\n";
2129: }
2130: } else {
1.9 raeburn 2131: copy "$instdir/debian-ubuntu/iptables","/etc/network/if-pre-up.d/iptables";
1.5 raeburn 2132: chmod(0755,"/etc/network/if-pre-up.d/iptables");
2133: print_and_log(&mt('Installed script "[_1]" to add iptables rules to block all ports except 22, 80, and 443 when network is enabled during boot.','/etc/network/if-pre-up.d/iptables'));
2134: $ask_to_enable = 1;
2135: }
2136: }
2137: return $ask_to_enable;
1.1 raeburn 2138: }
2139:
2140: sub download_loncapa {
2141: my ($instdir,$lctarball) = @_;
2142: my ($have_tarball,$updateshown);
2143: if (! -e "$instdir/$lctarball") {
2144: print_and_log(&mt('Retrieving LON-CAPA source files from: [_1]',
2145: 'http://install.loncapa.org')."\n");
2146: system("wget http://install.loncapa.org/versions/$lctarball ".
2147: "2>/dev/null 1>/dev/null");
2148: if (! -e "./$lctarball") {
2149: print &mt('Unable to retrieve LON-CAPA source files from: [_1].',
2150: "http://install.loncapa.org/versions/$lctarball")."\n";
2151: } else {
2152: $have_tarball = 1;
2153: }
2154: print_and_log("\n");
2155: } else {
2156: $have_tarball = 1;
2157: print_and_log("
2158: ------------------------------------------------------------------------
2159:
2160: ".&mt('You seem to have a version of loncapa-current.tar.gz in [_1]',$instdir)."\n".
2161: &mt('This copy will be used and a new version will NOT be downloaded.')."\n".
2162: &mt('If you wish, you may download a new version by executing:')."
2163:
1.2 raeburn 2164: wget http://install.loncapa.org/versions/loncapa-current.tar.gz
1.1 raeburn 2165:
2166: ------------------------------------------------------------------------
2167: ");
2168: }
2169:
2170: ##
2171: ## untar loncapa.tar.gz
2172: ##
2173: if ($have_tarball) {
2174: print_and_log(&mt('Extracting LON-CAPA source files')."\n");
2175: writelog(`cd ~root; tar zxf $instdir/$lctarball`);
2176: print_and_log("\n");
2177: print &mt('LON-CAPA source files extracted.')."\n".
2178: &mt('It remains for you to execute the following commands:')."
2179:
2180: cd /root/loncapa-N.N (N.N should correspond to a version number like '0.4')
2181: ./UPDATE
2182:
2183: ".&mt('If you have any trouble, please see [_1] and [_2]',
2184: 'http://install.loncapa.org/','http://help.loncapa.org/')."\n";
2185: $updateshown = 1;
2186: }
2187: return ($have_tarball,$updateshown);
2188: }
2189:
2190: close LOG;
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