source: main/trunk/greenstone2/common-src/cgi-bin/gsdlCGI.pm@ 25078

Last change on this file since 25078 was 25078, checked in by davidb, 12 years ago

@INC updated to include extension perllib folders
  • Property svn:keywords set to Author Date Id Revision
File size: 20.8 KB
Line 
1package gsdlCGI;
2
3# This file merges Michael Dewsnip's gsdlCGI.pm for GS2 and Quan Qiu's gsdlCGI4gs3.pm (GS3)
4
5use strict;
6no strict 'subs';
7no strict 'refs'; # allow filehandles to be variables and viceversa
8
9use CGI;
10use Cwd;
11use MIME::Base64;
12
13@gsdlCGI::ISA = ( 'CGI' );
14
15our $server_software;
16our $server_version;
17
18sub BEGIN {
19 $server_software = $ENV{'SERVER_SOFTWARE'};
20
21 if (defined $server_software) {
22 if ($server_software =~ m/^Microsoft-IIS\/(.*)$/) {
23 $server_version = $1;
24 }
25 }
26}
27
28
29sub prenew {
30 my $class = shift @_;
31
32 my $version;
33 if (-e "gsdl3site.cfg") {
34 $version = 3;
35 } else {
36 $version = 2;
37 }
38
39 my $self = {};
40
41 if ($version == 2) {
42 $self->{'site_filename'} = "gsdlsite.cfg";
43 $self->{'greenstone_version'} = 2;
44 }
45 elsif ($version == 3) {
46 $self->{'site_filename'} = "gsdl3site.cfg";
47 $self->{'greenstone_version'} = 3;
48 }
49
50 my $bself = bless $self, $class;
51
52 $bself->setup_gsdl();
53
54 return $bself;
55}
56
57
58sub new {
59 my $class = shift @_;
60
61 my $self;
62
63 # We'll determine the correct config file in this constructor itself
64 # and use it to determine the Greenstone server's version.
65 # Perhaps later, another test can be used for finding out what version
66 # of the Greenstone server we are working with.
67 my $version;
68 if (-e "gsdl3site.cfg") {
69 $version = 3;
70 } else {
71 $version = 2;
72 }
73
74 # POST that is URL-encoded (like a GET) is a line that needs to be read from STDIN
75 if ((defined $ENV{'CONTENT_TYPE'}) && ($ENV{'CONTENT_TYPE'} =~ m/form-urlencoded/)) {
76 my $line = <STDIN>;
77 if ((defined $line) && ($line ne "")) {
78 $self = new CGI($line);
79 }
80 }
81
82 # If the conditions above did not hold, then self=new CGI(@_)
83 if (!defined $self) {
84 # It's a GET, or else a POST with Multi-part body
85 $self = new CGI(@_);
86 }
87
88
89 if ($version == 2) {
90 $self->{'site_filename'} = "gsdlsite.cfg";
91 $self->{'greenstone_version'} = 2;
92 }
93 elsif ($version == 3) {
94 $self->{'site_filename'} = "gsdl3site.cfg";
95 $self->{'greenstone_version'} = 3;
96 }
97
98 return bless $self, $class;
99}
100
101
102sub parse_cgi_args
103{
104 my $self = shift @_;
105 my $xml = (defined $self->param("xml")) ? 1 : 0;
106
107 $self->{'xml'} = $xml;
108
109 my @var_names = $self->param;
110 my @arg_list = ();
111 foreach my $n ( @var_names ) {
112 my $arg = "$n=";
113 my $val = $self->param($n);
114 $arg .= $val if (defined $val);
115 push(@arg_list,$arg);
116 }
117
118 $self->{'args'} = join("&",@arg_list);
119}
120
121
122sub clean_param
123{
124 my $self = shift @_;
125 my ($param) = @_;
126
127 my $val = $self->SUPER::param($param);
128 $val =~ s/[\r\n]+$// if (defined $val);
129
130 return $val;
131}
132
133sub safe_val
134{
135 my $self = shift @_;
136 my ($val) = @_;
137
138 # convert any encoded entities to true form
139 $val =~ s/&amp;/&/osg;
140 $val =~ s/&lt;/</osg;
141 $val =~ s/&gt;/>/osg;
142 $val =~ s/&quot;/\"/osg;
143 $val =~ s/&nbsp;/ /osg;
144
145
146 # ensure only alpha-numeric plus a few other special chars remain
147
148 $val =~ s/[^[:alnum:]@\.\/\- :_]//g if (defined $val);
149
150 return $val;
151}
152
153sub generate_message
154{
155 my $self = shift @_;
156 my ($message) = @_;
157
158
159 binmode(STDOUT,":utf8");
160 print STDOUT "Content-type:text/plain\n\n$message";
161}
162
163sub generate_error
164{
165 my $self = shift @_;
166 my ($mess) = @_;
167
168 my $xml = $self->{'xml'};
169
170 my $full_mess;
171 my $args = $self->{'args'};
172
173 if ($xml) {
174 # Make $args XML safe
175 my $args_xml_safe = $args;
176 $args_xml_safe =~ s/&/&amp;/g;
177
178 $full_mess = "<Error>\n";
179 $full_mess .= " $mess\n";
180 $full_mess .= " CGI args were: $args_xml_safe\n";
181 $full_mess .= "</Error>\n";
182 }
183 else {
184 $full_mess = "ERROR: $mess\n ($args)\n";
185 }
186
187 $self->generate_message($full_mess);
188
189 die $full_mess;
190}
191
192sub generate_warning
193{
194 my $self = shift @_;
195 my ($mess) = @_;
196
197 my $xml = $self->{'xml'};
198
199 my $full_mess;
200 my $args = $self->{'args'};
201
202 if ($xml) {
203 # Make $args XML safe
204 my $args_xml_safe = $args;
205 $args_xml_safe =~ s/&/&amp;/g;
206
207 $full_mess = "<Warning>\n";
208 $full_mess .= " $mess\n";
209 $full_mess .= " CGI args were: $args_xml_safe\n";
210 $full_mess .= "</Warning>\n";
211 }
212 else {
213 $full_mess = "Warning: $mess ($args)\n";
214 }
215
216 $self->generate_message($full_mess);
217
218 print STDERR $full_mess;
219}
220
221
222sub generate_ok_message
223{
224 my $self = shift @_;
225 my ($mess) = @_;
226
227 my $xml = $self->{'xml'};
228
229 my $full_mess;
230
231 if ($xml) {
232 $full_mess = "<Accepted>\n";
233 $full_mess .= " $mess\n";
234 $full_mess .= "</Accepted>\n";
235 }
236 else {
237 $full_mess = "$mess";
238 }
239
240 $self->generate_message($full_mess);
241}
242
243
244
245sub get_config_info {
246 my $self = shift @_;
247 my ($infotype, $optional) = @_;
248
249 my $site_filename = $self->{'site_filename'};
250 open (FILEIN, "<$site_filename")
251 || $self->generate_error("Could not open $site_filename");
252
253 my $config_content = "";
254 while(defined (my $line = <FILEIN>)) {
255 $config_content .= $line;
256 }
257 close(FILEIN);
258
259 my ($loc) = ($config_content =~ m/^$infotype\s+((\".+\")|(\S+))\s*\n/m);
260 $loc =~ s/\"//g if defined $loc;
261
262 if ((!defined $loc) || ($loc =~ m/^\s*$/)) {
263 if((!defined $optional) || (!$optional)) {
264 $self->generate_error("$infotype is not set in $site_filename");
265 }
266 }
267
268 return $loc;
269}
270
271sub get_gsdl3_src_home{
272 my $self = shift @_;
273 if (defined $self->{'gsdl3srchome'}) {
274 return $self->{'gsdl3srchome'};
275 }
276
277 my $gsdl3srchome = $self->get_config_info("gsdl3srchome");
278
279 if(defined $gsdl3srchome) {
280 $gsdl3srchome =~ s/(\/|\\)$//; # remove trailing slash
281 }
282 $self->{'gsdl3srchome'} = $gsdl3srchome;
283
284 return $gsdl3srchome;
285}
286
287
288sub get_gsdl_home {
289 my $self = shift @_;
290
291 if (defined $self->{'gsdlhome'}) {
292 return $self->{'gsdlhome'};
293 }
294
295 my $gsdlhome = $self->get_config_info("gsdlhome");
296
297 $gsdlhome =~ s/(\/|\\)$//; # remove trailing slash
298
299 $self->{'gsdlhome'} = $gsdlhome;
300
301 return $gsdlhome;
302}
303
304sub get_gsdl3_home {
305 my $self = shift @_;
306 my ($optional) = @_;
307
308 if (defined $self->{'gsdl3home'}) {
309 return $self->{'gsdl3home'};
310 }
311
312 my $gsdl3home = $self->get_config_info("gsdl3home", $optional);
313
314 if(defined $gsdl3home) {
315 $gsdl3home =~ s/(\/|\\)$//; # remove trailing slash
316 $self->{'gsdl3home'} = $gsdl3home;
317 }
318 return $gsdl3home;
319}
320
321sub get_java_home {
322 my $self = shift @_;
323 my ($optional) = @_;
324
325 if (defined $self->{'javahome'}) {
326 return $self->{'javahome'};
327 }
328
329 my $javahome = $self->get_config_info("javahome", $optional);
330 if(defined $javahome) {
331 $javahome =~ s/(\/|\\)$//; # remove trailing slash
332 $self->{'javahome'} = $javahome;
333 }
334 return $javahome;
335}
336
337sub get_perl_path {
338 my $self = shift @_;
339 my ($optional) = @_;
340
341 if (defined $self->{'perlpath'}) {
342 return $self->{'perlpath'};
343 }
344
345 my $perlpath = $self->get_config_info("perlpath", $optional);
346
347 if(defined $perlpath) {
348 $perlpath =~ s/(\/|\\)$//; # remove trailing slash
349 $self->{'perlpath'} = $perlpath;
350 }
351 return $perlpath;
352}
353
354sub get_gsdl_os {
355 my $self = shift @_;
356
357 my $os = $^O;
358
359 if ($os =~ m/linux/i) {
360 return "linux";
361 }
362 elsif ($os =~ m/mswin/i) {
363 return "windows";
364 }
365 elsif ($os =~ m/macos/i) {
366 return "darwin";
367 }
368 else {
369 # return as is.
370 return $os;
371 }
372}
373
374sub get_library_url_suffix {
375 my $self = shift @_;
376
377 if (defined $self->{'library_url_suffix'}) {
378 return $self->{'library_url_suffix'};
379 }
380
381 my $optional = 1; # ignore absence of gwcgi if not found
382 my $library_url = $self->get_config_info("gwcgi", $optional);
383 if(defined $library_url) {
384 $library_url =~ s/(\/|\\)$//; # remove trailing slash
385 }
386 else {
387
388 if($self->{'greenstone_version'} == 2) {
389 $library_url = $self->get_config_info("httpprefix", $optional);
390 $library_url = "/greenstone" unless defined $library_url;
391 $library_url = "$library_url/cgi-bin/library.cgi"; # same extension for linux and windows
392 }
393 else { # greenstone 3 or later and gwcgi not defined
394 $library_url = "/greenstone3"; #"/greenstone3/library";
395 }
396 }
397
398 $self->{'library_url_suffix'} = $library_url;
399 return $library_url;
400}
401
402sub setup_fedora_homes {
403 my $self = shift @_;
404 my ($optional) = @_;
405
406 # The following will still allow the FEDORA_HOME and FEDORA_VERSION environment
407 # variables to have been set outside the gsdlsite.cfg file. Existing env vars
408 # are only overwritten if they've *also* been defined in gsdlsite.cfg.
409
410 if (!defined $self->{'fedora_home'}) # Don't need to go through it all again if we'd already done this before
411 {
412 # First look in the gsdlsite.cfg file for the fedora properties to be defined
413 # and set $ENV{FEDORA_HOME} and $ENV{FEDORA_VERSION} if values were provided
414 $self->{'fedora_home'} = $self->get_config_info("fedorahome", $optional);
415
416 if (defined $self->{'fedora_home'}) {
417 $ENV{'FEDORA_HOME'} = $self->{'fedora_home'};
418 }
419 elsif (defined $ENV{'FEDORA_HOME'}) { # check environment variable
420 $self->{'fedora_home'} = $ENV{'FEDORA_HOME'};
421 }
422
423 # if FEDORA_HOME is now defined, we can look for the fedora version that is being used
424 if (defined $ENV{'FEDORA_HOME'})
425 {
426 # first look in the file
427 $self->{'fedora_version'} = $self->get_config_info("fedoraversion", $optional);
428
429 if (defined $self->{'fedora_version'}) {
430 $ENV{'FEDORA_VERSION'} = $self->{'fedora_version'};
431 }
432 elsif (defined $ENV{'FEDORA_VERSION'}) { # then check environment variable
433 $self->{'fedora_version'} = $ENV{'FEDORA_VERSION'};
434 }
435 else { # finally, default to version 3 and warn the user
436 $ENV{'FEDORA_VERSION'} = "3";
437 $self->{'fedora_version'} = $ENV{'FEDORA_VERSION'};
438 #$self->generate_ok_message("FEDORA_HOME is set, but not FEDORA_VERSION, defaulted to: 3.");
439 }
440 }
441 }
442}
443
444# sets optional customisable values to do with Open Office
445sub setup_openoffice {
446 my $self = shift @_;
447 my ($optional) = @_;
448
449 if (!defined $self->{'soffice_home'}) # Don't need to go through it all again if we'd already done this before
450 {
451 # Look in gsdlsite.cfg for whether the openoffice
452 # and jodconverter properties have been defined
453 $self->{'soffice_home'} = $self->get_config_info("soffice_home", $optional);
454 $self->{'soffice_host'} = $self->get_config_info("soffice_host", $optional);
455 $self->{'soffice_port'} = $self->get_config_info("soffice_port", $optional);
456 $self->{'jodconverter_port'} = $self->get_config_info("jodconverter_port", $optional);
457
458 if (defined $self->{'soffice_home'}) {
459 $ENV{'SOFFICE_HOME'} = $self->{'soffice_home'};
460 }
461 if (defined $self->{'soffice_host'}) {
462 $ENV{'SOFFICE_HOST'} = $self->{'soffice_host'};
463 }
464 if (defined $self->{'soffice_port'}) {
465 $ENV{'SOFFICE_PORT'} = $self->{'soffice_port'};
466 }
467 if (defined $self->{'jodconverter_port'}) {
468 $ENV{'JODCONVERTER_PORT'} = $self->{'jodconverter_port'};
469 }
470 }
471}
472
473sub setup_gsdl {
474 my $self = shift @_;
475 my $optional = 1; # ignore absence of specified properties in gsdl(3)site.cfg if not found
476
477 my $gsdlhome = $self->get_gsdl_home();
478 my $gsdlos = $self->get_gsdl_os();
479 $ENV{'GSDLHOME'} = $gsdlhome;
480 $ENV{'GSDLOS'} = $gsdlos;
481
482 if (defined $server_software) {
483 if ($server_software =~ m/^Microsoft-IIS/) {
484 # Printing to STDERR, by default, goes to the web page in IIS
485 # Send it instead to Greenstone's error.txt
486
487 my $error_filename = "$gsdlhome/etc/error.txt"; # OK for Windows
488 open STDERR, ">> $error_filename"
489 or die "Can't write to $error_filename: $!\n";
490 binmode STDERR;
491 }
492 }
493
494 my $library_url = $self->get_library_url_suffix(); # best to have GSDLOS set beforehand
495 $self->{'library_url_suffix'} = $library_url;
496
497 my $cgibin = "cgi-bin/$ENV{'GSDLOS'}";
498 $cgibin = $cgibin.$ENV{'GSDLARCH'} if defined $ENV{'GSDLARCH'};
499
500 unshift(@INC, "$ENV{'GSDLHOME'}/$cgibin"); # This is OK on Windows
501 unshift(@INC, "$ENV{'GSDLHOME'}/perllib");
502 unshift(@INC, "$ENV{'GSDLHOME'}/perllib/cpan");
503 unshift(@INC, "$ENV{'GSDLHOME'}/perllib/cgiactions");
504
505 require util;
506
507 if($self->{'greenstone_version'} == 3) {
508 my $gsdl3srchome = $self->get_gsdl3_src_home();
509 $ENV{'GSDL3SRCHOME'} = $gsdl3srchome;
510
511 my $gsdl3home = $self->get_gsdl3_home($optional);
512 # if a specific location for GS3's web folder is not provided,
513 # assume the GS3 web folder is in the default location
514 if(!defined $gsdl3home) {
515 $gsdl3home = &util::filename_cat($ENV{'GSDL3SRCHOME'}, "web");
516 $self->{'gsdl3home'} = $gsdl3home;
517 }
518 $ENV{'GSDL3HOME'} = $gsdl3home;
519 }
520
521
522 my $gsdl_bin_script = &util::filename_cat($gsdlhome,"bin","script");
523 &util::envvar_prepend("PATH",$gsdl_bin_script);
524
525 my $gsdl_bin_os = &util::filename_cat($gsdlhome,"bin",$gsdlos);
526 &util::envvar_prepend("PATH",$gsdl_bin_os);
527
528 # set up ImageMagick for the remote server in parallel to what setup.bash does
529 my $magick_home = &util::filename_cat($gsdl_bin_os,"imagemagick");
530 if(-e $magick_home) {
531 &util::envvar_prepend("PATH", $magick_home);
532
533 # Doesn't look like 'bin' and 'lib' are used for Windows version anymore,
534 # but that might just be one particular installation pattern, and there's
535 # no harm (that I can see) in keeping them in
536
537 my $magick_bin = &util::filename_cat($magick_home,"bin");
538 my $magick_lib = &util::filename_cat($magick_home,"lib");
539
540 &util::envvar_prepend("PATH", $magick_bin);
541
542 if(!defined $ENV{'MAGICK_HOME'} || $ENV{'MAGICK_HOME'} eq "") {
543 $ENV{'MAGICK_HOME'} = $magick_home;
544 }
545
546 if($gsdlos eq "linux") {
547 &util::envvar_prepend("LD_LIBRARY_PATH", $magick_lib);
548 } elsif ($gsdlos eq "darwin") {
549 &util::envvar_prepend("DYLD_LIBRARY_PATH", $magick_lib);
550 }
551
552 }
553
554 # set up GhostScript for the remote server in parallel to what setup.bash does
555 my $ghostscript_home = &util::filename_cat($gsdl_bin_os,"ghostscript");
556 if(-e $ghostscript_home) {
557 my $ghostscript_bin = &util::filename_cat($ghostscript_home,"bin");
558 &util::envvar_prepend("PATH", $ghostscript_bin);
559
560 if(!defined $ENV{'GS_LIB'} || $ENV{'GS_LIB'} eq "") {
561 $ENV{'GS_LIB'} = &util::filename_cat($ghostscript_home,"share","ghostscript","8.63","lib");
562 }
563 if(!defined $ENV{'GS_FONTPATH'} || $ENV{'GS_FONTPATH'} eq "") {
564 $ENV{'GS_FONTPATH'} = &util::filename_cat($ghostscript_home,"share","ghostscript","8.63","Resource","Font");
565 }
566 }
567
568 # If the "perlpath" property is set in the gsdl(3)site.cfg config file, it is
569 # prepended to PATH only if the same perl bin dir path is not already on PATH env
570 my $perl_bin_dir = $self->get_perl_path($optional);
571 if(defined $perl_bin_dir)
572 {
573 &util::envvar_prepend("PATH", $perl_bin_dir);
574
575 #my ($perl_home) = ($perl_bin_dir =~ m/(.*)[\\|\/]bin[\\|\/]?$/);
576 my ($tailname,$perl_home) = File::Basename::fileparse($perl_bin_dir, "\\.(?:[^\\.]+?)\$");
577 $ENV{'PERL5LIB'} = &util::filename_cat($perl_home, "lib");
578
579 if($gsdlos eq "darwin") {
580 &util::envvar_prepend("DYLD_LIBRARY_PATH", &util::filename_cat($perl_home,"5.8.9","darwin-thread-multi-2level","CORE"));
581 } elsif($gsdlos eq "linux") {
582 &util::envvar_prepend("LD_LIBRARY_PATH", &util::filename_cat($perl_home,"5.8.9","i686-linux-thread-multi","CORE"));
583 }
584 }
585 elsif ($gsdlos eq "windows")
586 {
587 # Perl comes installed with the GS Windows Release Kit. However, note that if GS
588 # is from SVN, the user must have their own Perl and put it on the PATH or set
589 # perlpath in the gsdl site config file.
590 $perl_bin_dir = &util::filename_cat($gsdlhome, "bin", "windows", "perl", "bin");
591 if(-e $perl_bin_dir) {
592 &util::envvar_append("PATH", $perl_bin_dir);
593 }
594 }
595
596 # If javahome is explicitly set in the gsdl site config file then it will override
597 # any env variable JAVA_HOME. A GS2 server does not set JAVA_HOME, though java is on
598 # the path. Therefore, if Fedora is being used for FLI with GS2, then javahome must
599 # be set in gsdlsite.cfg or the JAVA_HOME env var must be explicitly set by the user.
600 my $java_home = $self->get_java_home($optional);
601 if(defined $java_home) {
602 $ENV{'JAVA_HOME'} = $java_home;
603 }
604
605
606 # Process any extension setup.pl files
607 my @ext_homes = ();
608
609 my $gsdl_ext_home = &util::filename_cat($gsdlhome,"ext");
610 push(@ext_homes,$gsdl_ext_home);
611
612 if ($self->{'greenstone_version'} == 3) {
613 my $gsdl3srchome = $self->get_gsdl3_src_home();
614 my $gsdl3_ext_home = &util::filename_cat($gsdl3srchome,"ext");
615 push(@ext_homes,$gsdl3_ext_home);
616 }
617
618 foreach my $ext_home (@ext_homes) {
619 # Should really think about making this a subroutine
620
621 if (opendir(EXTDIR,$ext_home) ) {
622 my @pot_ext_dir = grep { $_ !~ m/^\./ } readdir(EXTDIR);
623
624 closedir(EXTDIR);
625
626 foreach my $ed (@pot_ext_dir) {
627 my $full_ext_dir = &util::filename_cat($ext_home,$ed);
628
629 if (-d $full_ext_dir) {
630
631 my $full_ext_perllib_dir = &util::filename_cat($full_ext_dir,"perllib");
632 if (-d $full_ext_perllib_dir) {
633 unshift (@INC, $full_ext_perllib_dir);
634 }
635
636 my $full_inc_file = &util::filename_cat($full_ext_dir,
637 "$ed-setup.pl");
638 if (-f $full_inc_file) {
639
640 my $store_cwd = Cwd::cwd();
641
642 chdir($full_ext_dir);
643 require "./$ed-setup.pl";
644 chdir($store_cwd);
645 }
646 }
647 }
648 }
649 }
650
651 # FEDORA_HOME and FEDORA_VERSION are needed (by scripts g2f-import and g2f-buildcol).
652 $self->setup_fedora_homes($optional);
653
654
655 # Check for any customisations to Open-Office if on Windows
656 if ($gsdlos eq "windows") {
657 $self->setup_openoffice($optional);
658 }
659}
660
661sub greenstone_version {
662 my $self = shift @_;
663 return $self->{'greenstone_version'};
664}
665
666sub library_url_suffix {
667 my $self = shift @_;
668 return $self->{'library_url_suffix'};
669}
670
671# Only useful to call this after calling setup_gsdl, as it uses some environment variables
672# Returns the Greenstone collect directory, or a specific collection directory inside collect
673sub get_collection_dir {
674 my $self = shift @_;
675 my ($site, $collection) = @_; # both may be undefined
676
677 my $collection_directory;
678 if($self->{'greenstone_version'} == 2 && defined $ENV{'GSDLHOME'}) {
679 if(defined $collection) {
680 $collection_directory = &util::filename_cat($ENV{'GSDLHOME'}, "collect", $collection);
681 } else {
682 $collection_directory = &util::filename_cat($ENV{'GSDLHOME'}, "collect");
683 }
684 }
685 elsif($self->{'greenstone_version'} == 3 && defined $ENV{'GSDL3SRCHOME'}) {
686 if(defined $collection) {
687 $collection_directory = &util::filename_cat($ENV{'GSDL3SRCHOME'}, "web", "sites", $site, "collect", $collection);
688 } else {
689 $collection_directory = &util::filename_cat($ENV{'GSDL3SRCHOME'}, "web", "sites", $site, "collect");
690 }
691 }
692}
693
694sub local_rm_r
695{
696 my $self = shift @_;
697 my ($local_dir) = @_;
698
699 my $prefix_dir = getcwd();
700 my $full_path = &util::filename_cat($prefix_dir,$local_dir);
701
702 if ($prefix_dir !~ m/collect/) {
703 $self->generate_error("Trying to delete outside of Greenstone collect: $full_path");
704 }
705
706 # Delete recursively
707 if (!-e $full_path) {
708 $self->generate_error("File/Directory does not exist: $full_path");
709 }
710
711 &util::rm_r($full_path);
712}
713
714
715sub get_java_path()
716{
717 # Check the JAVA_HOME environment variable first
718 if (defined $ENV{'JAVA_HOME'}) {
719 my $java_home = $ENV{'JAVA_HOME'};
720 $java_home =~ s/\/$//; # Remove trailing slash if present (Unix specific)
721 return &util::filename_cat($java_home, "bin", "java");
722 }
723
724 # Hope that Java is on the PATH
725 return "java";
726}
727
728
729sub check_java_home()
730{
731 # Return a warning unless the JAVA_HOME environment variable is set
732 if (!defined $ENV{'JAVA_HOME'}) {
733 return "JAVA_HOME environment variable not set. Might not be able to find Java unless in PATH (" . $ENV{'PATH'} . ")";
734 }
735
736 return "";
737}
738
739
740sub checked_chdir
741{
742 my $self = shift @_;
743 my ($dir) = @_;
744
745 if (!-e $dir) {
746 $self->generate_error("Directory '$dir' does not exist");
747 }
748
749 chdir $dir
750 || $self->generate_error("Unable to change to directory: $dir");
751}
752
753sub rot13()
754{
755 my $self = shift @_;
756 my ($password)=@_;
757 my @password_arr=split(//,$password);
758
759 my @encrypt_password;
760 foreach my $str (@password_arr){
761 my $char=unpack("c",$str);
762 if ($char>=97 && $char<=109){
763 $char+=13;
764 }elsif ($char>=110 && $char<=122){
765 $char-=13;
766 }elsif ($char>=65 && $char<=77){
767 $char+=13;
768 }elsif ($char>=78 && $char<=90){
769 $char-=13;
770 }
771 $char=pack("c",$char);
772 push(@encrypt_password,$char);
773 }
774 return join("",@encrypt_password);
775}
776
777sub encrypt_password
778{
779 my $self = shift @_;
780
781 if (defined $self->param("pw")) { ##
782 if ($self->{'greenstone_version'} == 3) { # GS3 is in Java, so needs different encryption
783 $self->param('-name' => "pw", '-value' => $self->rot13($self->clean_param("pw")));
784 }
785 else { # GS2 (and versions of GS other than 3?)
786 #require "$self->{'gsdlhome'}/perllib/util.pm"; # This is OK on Windows
787 require "$self->{'gsdlhome'}/perllib/cpan/Crypt/UnixCrypt.pm"; # This is OK on Windows
788 $self->param('-name' => "pw", '-value' => &Crypt::UnixCrypt::crypt($self->clean_param("pw"), "Tp"));
789 }
790 }
791}
792
793
794sub decode {
795 my ($self, $text) = @_;
796 $text =~ s/\+/ /g;
797 $text = &MIME::Base64::decode_base64($text);
798
799 return $text;
800}
801
8021;
803
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