source: main/trunk/greenstone2/cgi-bin/gsdlCGI.pm@ 23732

Last change on this file since 23732 was 23732, checked in by ak19, 13 years ago

Second (final) part of changes for getting OpenOffice conversion to work on a remote WINDOWS Greenstone (Linux was working already).
  • Property svn:keywords set to Author Date Id Revision
File size: 19.9 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 #if($self->{'greenstone_version'} == 2) { # plain text, for IIS 6
159 print STDOUT "Content-type:text/plain\n\n$message";
160 #} else {
161 #print "Content-type:text/html\n\n";
162 #print "<pre>";
163 #print STDOUT $message;
164 #print "</pre>";
165 #}
166}
167
168sub generate_error
169{
170 my $self = shift @_;
171 my ($mess) = @_;
172
173 my $xml = $self->{'xml'};
174
175 my $full_mess;
176 my $args = $self->{'args'};
177
178 if ($xml) {
179 # Make $args XML safe
180 my $args_xml_safe = $args;
181 $args_xml_safe =~ s/&/&amp;/g;
182
183 $full_mess = "<Error>\n";
184 $full_mess .= " $mess\n";
185 $full_mess .= " CGI args were: $args_xml_safe\n";
186 $full_mess .= "</Error>\n";
187 }
188 else {
189 $full_mess = "ERROR: $mess\n ($args)\n";
190 }
191
192 $self->generate_message($full_mess);
193
194 die $full_mess;
195}
196
197sub generate_warning
198{
199 my $self = shift @_;
200 my ($mess) = @_;
201
202 my $xml = $self->{'xml'};
203
204 my $full_mess;
205 my $args = $self->{'args'};
206
207 if ($xml) {
208 # Make $args XML safe
209 my $args_xml_safe = $args;
210 $args_xml_safe =~ s/&/&amp;/g;
211
212 $full_mess = "<Warning>\n";
213 $full_mess .= " $mess\n";
214 $full_mess .= " CGI args were: $args_xml_safe\n";
215 $full_mess .= "</Warning>\n";
216 }
217 else {
218 $full_mess = "Warning: $mess ($args)\n";
219 }
220
221 $self->generate_message($full_mess);
222
223 print STDERR $full_mess;
224}
225
226
227sub generate_ok_message
228{
229 my $self = shift @_;
230 my ($mess) = @_;
231
232 my $xml = $self->{'xml'};
233
234 my $full_mess;
235
236 if ($xml) {
237 $full_mess = "<Accepted>\n";
238 $full_mess .= " $mess\n";
239 $full_mess .= "</Accepted>\n";
240 }
241 else {
242 $full_mess = "$mess";
243 }
244
245 $self->generate_message($full_mess);
246}
247
248
249
250sub get_config_info {
251 my $self = shift @_;
252 my ($infotype, $optional) = @_;
253
254 my $site_filename = $self->{'site_filename'};
255 open (FILEIN, "<$site_filename")
256 || $self->generate_error("Could not open $site_filename");
257
258 my $config_content = "";
259 while(defined (my $line = <FILEIN>)) {
260 $config_content .= $line;
261 }
262 close(FILEIN);
263
264 my ($loc) = ($config_content =~ m/^$infotype\s+((\".+\")|(\S+))\s*\n/m);
265 $loc =~ s/\"//g if defined $loc;
266
267 if ((!defined $loc) || ($loc =~ m/^\s*$/)) {
268 if((!defined $optional) || (!$optional)) {
269 $self->generate_error("$infotype is not set in $site_filename");
270 }
271 }
272
273 return $loc;
274}
275
276sub get_gsdl3_src_home{
277 my $self = shift @_;
278 if (defined $self->{'gsdl3srchome'}) {
279 return $self->{'gsdl3srchome'};
280 }
281
282 my $gsdl3srchome = $self->get_config_info("gsdl3srchome");
283
284 if(defined $gsdl3srchome) {
285 $gsdl3srchome =~ s/(\/|\\)$//; # remove trailing slash
286 }
287 $self->{'gsdl3srchome'} = $gsdl3srchome;
288
289 return $gsdl3srchome;
290}
291
292
293sub get_gsdl_home {
294 my $self = shift @_;
295
296 if (defined $self->{'gsdlhome'}) {
297 return $self->{'gsdlhome'};
298 }
299
300 my $gsdlhome = $self->get_config_info("gsdlhome");
301
302 $gsdlhome =~ s/(\/|\\)$//; # remove trailing slash
303
304 $self->{'gsdlhome'} = $gsdlhome;
305
306 return $gsdlhome;
307}
308
309sub get_gsdl3_home {
310 my $self = shift @_;
311 my ($optional) = @_;
312
313 if (defined $self->{'gsdl3home'}) {
314 return $self->{'gsdl3home'};
315 }
316
317 my $gsdl3home = $self->get_config_info("gsdl3home", $optional);
318
319 if(defined $gsdl3home) {
320 $gsdl3home =~ s/(\/|\\)$//; # remove trailing slash
321 $self->{'gsdl3home'} = $gsdl3home;
322 }
323 return $gsdl3home;
324}
325
326sub get_java_home {
327 my $self = shift @_;
328 my ($optional) = @_;
329
330 if (defined $self->{'javahome'}) {
331 return $self->{'javahome'};
332 }
333
334 my $javahome = $self->get_config_info("javahome", $optional);
335 if(defined $javahome) {
336 $javahome =~ s/(\/|\\)$//; # remove trailing slash
337 $self->{'javahome'} = $javahome;
338 }
339 return $javahome;
340}
341
342sub get_perl_path {
343 my $self = shift @_;
344 my ($optional) = @_;
345
346 if (defined $self->{'perlpath'}) {
347 return $self->{'perlpath'};
348 }
349
350 my $perlpath = $self->get_config_info("perlpath", $optional);
351
352 if(defined $perlpath) {
353 $perlpath =~ s/(\/|\\)$//; # remove trailing slash
354 $self->{'perlpath'} = $perlpath;
355 }
356 return $perlpath;
357}
358
359sub get_gsdl_os {
360 my $self = shift @_;
361
362 my $os = $^O;
363
364 if ($os =~ m/linux/i) {
365 return "linux";
366 }
367 elsif ($os =~ m/mswin/i) {
368 return "windows";
369 }
370 elsif ($os =~ m/macos/i) {
371 return "darwin";
372 }
373 else {
374 # return as is.
375 return $os;
376 }
377}
378
379sub get_library_url_suffix {
380 my $self = shift @_;
381
382 if (defined $self->{'library_url_suffix'}) {
383 return $self->{'library_url_suffix'};
384 }
385
386 my $optional = 1; # ignore absence of gwcgi if not found
387 my $library_url = $self->get_config_info("gwcgi", $optional);
388 if(defined $library_url) {
389 $library_url =~ s/(\/|\\)$//; # remove trailing slash
390 }
391 else {
392
393 if($self->{'greenstone_version'} == 2) {
394 $library_url = $self->get_config_info("httpprefix", $optional);
395 $library_url = "/greenstone" unless defined $library_url;
396 $library_url = "$library_url/cgi-bin/library.cgi"; # same extension for linux and windows
397 }
398 else { # greenstone 3 or later and gwcgi not defined
399 $library_url = "/greenstone3"; #"/greenstone3/library";
400 }
401 }
402
403 $self->{'library_url_suffix'} = $library_url;
404 return $library_url;
405}
406
407sub setup_fedora_homes {
408 my $self = shift @_;
409 my ($optional) = @_;
410
411 # The following will still allow the FEDORA_HOME and FEDORA_VERSION environment
412 # variables to have been set outside the gsdlsite.cfg file. Existing env vars
413 # are only overwritten if they've *also* been defined in gsdlsite.cfg.
414
415 if (!defined $self->{'fedora_home'}) # Don't need to go through it all again if we'd already done this before
416 {
417 # First look in the gsdlsite.cfg file for the fedora properties to be defined
418 # and set $ENV{FEDORA_HOME} and $ENV{FEDORA_VERSION} if values were provided
419 $self->{'fedora_home'} = $self->get_config_info("fedorahome", $optional);
420
421 if (defined $self->{'fedora_home'}) {
422 $ENV{'FEDORA_HOME'} = $self->{'fedora_home'};
423 }
424 elsif (defined $ENV{'FEDORA_HOME'}) { # check environment variable
425 $self->{'fedora_home'} = $ENV{'FEDORA_HOME'};
426 }
427
428 # if FEDORA_HOME is now defined, we can look for the fedora version that is being used
429 if (defined $ENV{'FEDORA_HOME'})
430 {
431 # first look in the file
432 $self->{'fedora_version'} = $self->get_config_info("fedoraversion", $optional);
433
434 if (defined $self->{'fedora_version'}) {
435 $ENV{'FEDORA_VERSION'} = $self->{'fedora_version'};
436 }
437 elsif (defined $ENV{'FEDORA_VERSION'}) { # then check environment variable
438 $self->{'fedora_version'} = $ENV{'FEDORA_VERSION'};
439 }
440 else { # finally, default to version 3 and warn the user
441 $ENV{'FEDORA_VERSION'} = "3";
442 $self->{'fedora_version'} = $ENV{'FEDORA_VERSION'};
443 #$self->generate_ok_message("FEDORA_HOME is set, but not FEDORA_VERSION, defaulted to: 3.");
444 }
445 }
446 }
447}
448
449# sets optional customisable values to do with Open Office
450sub setup_openoffice {
451 my $self = shift @_;
452 my ($optional) = @_;
453
454 if (!defined $self->{'soffice_home'}) # Don't need to go through it all again if we'd already done this before
455 {
456 # First look in the gsdlsite.cfg file for the openoffice properties to be defined
457 $self->{'soffice_home'} = $self->get_config_info("soffice_home", $optional);
458 $self->{'soffice_host'} = $self->get_config_info("soffice_host", $optional);
459 $self->{'soffice_port'} = $self->get_config_info("soffice_port", $optional);
460
461 if (defined $self->{'soffice_home'}) {
462 $ENV{'SOFFICE_HOME'} = $self->{'soffice_home'};
463 }
464 if (defined $self->{'soffice_host'}) {
465 $ENV{'SOFFICE_HOST'} = $self->{'soffice_host'};
466 }
467 if (defined $self->{'soffice_port'}) {
468 $ENV{'SOFFICE_PORT'} = $self->{'soffice_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'} = $library_url;
496
497 unshift(@INC, "$ENV{'GSDLHOME'}/cgi-bin"); # This is OK on Windows
498 unshift(@INC, "$ENV{'GSDLHOME'}/perllib");
499 unshift(@INC, "$ENV{'GSDLHOME'}/perllib/cpan");
500 unshift(@INC, "$ENV{'GSDLHOME'}/perllib/cgiactions");
501
502 require util;
503
504 if($self->{'greenstone_version'} == 3) {
505 my $gsdl3srchome = $self->get_gsdl3_src_home();
506 $ENV{'GSDL3SRCHOME'} = $gsdl3srchome;
507
508 my $gsdl3home = $self->get_gsdl3_home($optional);
509 # if a specific location for GS3's web folder is not provided,
510 # assume the GS3 web folder is in the default location
511 if(!defined $gsdl3home) {
512 $gsdl3home = &util::filename_cat($ENV{'GSDL3SRCHOME'}, "web");
513 $self->{'gsdl3home'} = $gsdl3home;
514 }
515 $ENV{'GSDL3HOME'} = $gsdl3home;
516 }
517
518
519 my $gsdl_bin_script = &util::filename_cat($gsdlhome,"bin","script");
520 &util::envvar_prepend("PATH",$gsdl_bin_script);
521
522 my $gsdl_bin_os = &util::filename_cat($gsdlhome,"bin",$gsdlos);
523 &util::envvar_prepend("PATH",$gsdl_bin_os);
524
525 # set up ImageMagick for the remote server in parallel to what setup.bash does
526 my $magick_home = &util::filename_cat($gsdl_bin_os,"imagemagick");
527 if(-e $magick_home) {
528 my $magick_bin = &util::filename_cat($magick_home,"bin");
529 my $magick_lib = &util::filename_cat($magick_home,"lib");
530
531 &util::envvar_append("PATH", $magick_bin);
532
533 if(!defined $ENV{'MAGICK_HOME'} || $ENV{'MAGICK_HOME'} eq "") {
534 $ENV{'MAGICK_HOME'} = $magick_home;
535 }
536
537 if($gsdlos eq "linux") {
538 &util::envvar_prepend("LD_LIBRARY_PATH", $magick_lib);
539 } elsif ($gsdlos eq "linux") {
540 &util::envvar_prepend("DYLD_LIBRARY_PATH", $magick_lib);
541 }
542
543 }
544
545 # set up GhostScript for the remote server in parallel to what setup.bash does
546 my $ghostscript_home = &util::filename_cat($gsdl_bin_os,"ghostscript");
547 if(-e $ghostscript_home) {
548 my $ghostscript_bin = &util::filename_cat($ghostscript_home,"bin");
549 &util::envvar_prepend("PATH", $ghostscript_bin);
550
551 if(!defined $ENV{'GS_LIB'} || $ENV{'GS_LIB'} eq "") {
552 $ENV{'GS_LIB'} = &util::filename_cat($ghostscript_home,"share","ghostscript","8.63","lib");
553 }
554 if(!defined $ENV{'GS_FONTPATH'} || $ENV{'GS_FONTPATH'} eq "") {
555 $ENV{'GS_FONTPATH'} = &util::filename_cat($ghostscript_home,"share","ghostscript","8.63","Resource","Font");
556 }
557 }
558
559 # If the "perlpath" property is set in the gsdl(3)site.cfg config file, it is
560 # prepended to PATH only if the same perl bin dir path is not already on PATH env
561 my $perl_bin_dir = $self->get_perl_path($optional);
562 if(defined $perl_bin_dir)
563 {
564 &util::envvar_prepend("PATH", $perl_bin_dir);
565
566 #my ($perl_home) = ($perl_bin_dir =~ m/(.*)[\\|\/]bin[\\|\/]?$/);
567 my ($tailname,$perl_home) = File::Basename::fileparse($perl_bin_dir, "\\.(?:[^\\.]+?)\$");
568 $ENV{'PERL5LIB'} = &util::filename_cat($perl_home, "lib");
569
570 if($gsdlos eq "darwin") {
571 &util::envvar_prepend("DYLD_LIBRARY_PATH", &util::filename_cat($perl_home,"5.8.9","darwin-thread-multi-2level","CORE"));
572 } elsif($gsdlos eq "linux") {
573 &util::envvar_prepend("LD_LIBRARY_PATH", &util::filename_cat($perl_home,"5.8.9","i686-linux-thread-multi","CORE"));
574 }
575 }
576 elsif ($gsdlos eq "windows")
577 {
578 # Perl comes installed with the GS Windows Release Kit. However, note that if GS
579 # is from SVN, the user must have their own Perl and put it on the PATH or set
580 # perlpath in the gsdl site config file.
581 $perl_bin_dir = &util::filename_cat($gsdlhome, "bin", "windows", "perl", "bin");
582 if(-e $perl_bin_dir) {
583 &util::envvar_append("PATH", $perl_bin_dir);
584 }
585 }
586
587 # If javahome is explicitly set in the gsdl site config file then it will override
588 # any env variable JAVA_HOME. A GS2 server does not set JAVA_HOME, though java is on
589 # the path. Therefore, if Fedora is being used for FLI with GS2, then javahome must
590 # be set in gsdlsite.cfg or the JAVA_HOME env var must be explicitly set by the user.
591 my $java_home = $self->get_java_home($optional);
592 if(defined $java_home) {
593 $ENV{'JAVA_HOME'} = $java_home;
594 }
595
596 # Process any extension setup.pl files
597 my $ext_home = &util::filename_cat($gsdlhome,"ext");
598
599 if (opendir(EXTDIR,$ext_home) ) {
600 my @pot_ext_dir = grep { $_ !~ m/^\./ } readdir(EXTDIR);
601
602 closedir(EXTDIR);
603
604 foreach my $ed (@pot_ext_dir) {
605 my $full_ext_dir = &util::filename_cat($ext_home,$ed);
606 if (-d $full_ext_dir) {
607 my $full_inc_file = &util::filename_cat($full_ext_dir,
608 "$ed-setup.pl");
609 if (-f $full_inc_file) {
610
611 my $store_cwd = Cwd::cwd();
612
613 chdir($full_ext_dir);
614 require "./$ed-setup.pl";
615 chdir($store_cwd);
616 }
617 }
618 }
619 }
620
621 # FEDORA_HOME and FEDORA_VERSION are needed (by scripts g2f-import and g2f-buildcol).
622 $self->setup_fedora_homes($optional);
623
624
625 # Check for any customisations to Open-Office if on Windows
626 if ($gsdlos eq "windows") {
627 $self->setup_openoffice($optional);
628 }
629}
630
631sub greenstone_version {
632 my $self = shift @_;
633 return $self->{'greenstone_version'};
634}
635
636sub library_url_suffix {
637 my $self = shift @_;
638 return $self->{'library_url_suffix'};
639}
640
641# Only useful to call this after calling setup_gsdl, as it uses some environment variables
642# Returns the Greenstone collect directory, or a specific collection directory inside collect
643sub get_collection_dir {
644 my $self = shift @_;
645 my ($site, $collection) = @_; # both may be undefined
646
647 my $collection_directory;
648 if($self->{'greenstone_version'} == 2 && defined $ENV{'GSDLHOME'}) {
649 if(defined $collection) {
650 $collection_directory = &util::filename_cat($ENV{'GSDLHOME'}, "collect", $collection);
651 } else {
652 $collection_directory = &util::filename_cat($ENV{'GSDLHOME'}, "collect");
653 }
654 }
655 elsif($self->{'greenstone_version'} == 3 && defined $ENV{'GSDL3SRCHOME'}) {
656 if(defined $collection) {
657 $collection_directory = &util::filename_cat($ENV{'GSDL3SRCHOME'}, "web", "sites", $site, "collect", $collection);
658 } else {
659 $collection_directory = &util::filename_cat($ENV{'GSDL3SRCHOME'}, "web", "sites", $site, "collect");
660 }
661 }
662}
663
664sub local_rm_r
665{
666 my $self = shift @_;
667 my ($local_dir) = @_;
668
669 my $prefix_dir = getcwd();
670 my $full_path = &util::filename_cat($prefix_dir,$local_dir);
671
672 if ($prefix_dir !~ m/collect/) {
673 $self->generate_error("Trying to delete outside of Greenstone collect: $full_path");
674 }
675
676 # Delete recursively
677 if (!-e $full_path) {
678 $self->generate_error("File/Directory does not exist: $full_path");
679 }
680
681 &util::rm_r($full_path);
682}
683
684
685sub get_java_path()
686{
687 # Check the JAVA_HOME environment variable first
688 if (defined $ENV{'JAVA_HOME'}) {
689 my $java_home = $ENV{'JAVA_HOME'};
690 $java_home =~ s/\/$//; # Remove trailing slash if present (Unix specific)
691 return &util::filename_cat($java_home, "bin", "java");
692 }
693
694 # Hope that Java is on the PATH
695 return "java";
696}
697
698
699sub check_java_home()
700{
701 # Return a warning unless the JAVA_HOME environment variable is set
702 if (!defined $ENV{'JAVA_HOME'}) {
703 return "JAVA_HOME environment variable not set. Might not be able to find Java unless in PATH (" . $ENV{'PATH'} . ")";
704 }
705
706 return "";
707}
708
709
710sub checked_chdir
711{
712 my $self = shift @_;
713 my ($dir) = @_;
714
715 if (!-e $dir) {
716 $self->generate_error("Directory '$dir' does not exist");
717 }
718
719 chdir $dir
720 || $self->generate_error("Unable to change to directory: $dir");
721}
722
723sub rot13()
724{
725 my $self = shift @_;
726 my ($password)=@_;
727 my @password_arr=split(//,$password);
728
729 my @encrypt_password;
730 foreach my $str (@password_arr){
731 my $char=unpack("c",$str);
732 if ($char>=97 && $char<=109){
733 $char+=13;
734 }elsif ($char>=110 && $char<=122){
735 $char-=13;
736 }elsif ($char>=65 && $char<=77){
737 $char+=13;
738 }elsif ($char>=78 && $char<=90){
739 $char-=13;
740 }
741 $char=pack("c",$char);
742 push(@encrypt_password,$char);
743 }
744 return join("",@encrypt_password);
745}
746
747sub encrypt_password
748{
749 my $self = shift @_;
750
751 if (defined $self->param("pw")) { ##
752 if ($self->{'greenstone_version'} == 3) { # GS3 is in Java, so needs different encryption
753 $self->param('-name' => "pw", '-value' => $self->rot13($self->clean_param("pw")));
754 }
755 else { # GS2 (and versions of GS other than 3?)
756 #require "$self->{'gsdlhome'}/perllib/util.pm"; # This is OK on Windows
757 require "$self->{'gsdlhome'}/perllib/cpan/Crypt/UnixCrypt.pm"; # This is OK on Windows
758 $self->param('-name' => "pw", '-value' => &Crypt::UnixCrypt::crypt($self->clean_param("pw"), "Tp"));
759 }
760 }
761}
762
763
764sub decode {
765 my ($self, $text) = @_;
766 $text =~ s/\+/ /g;
767 $text = &MIME::Base64::decode_base64($text);
768
769 return $text;
770}
771
7721;
773
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