|
1
|
#
|
|
2
|
# '$RCSfile$'
|
|
3
|
# Copyright: 2000 Regents of the University of California
|
|
4
|
#
|
|
5
|
# '$Author: daigle $'
|
|
6
|
# '$Date: 2009-08-24 14:27:37 -0700 (Mon, 24 Aug 2009) $'
|
|
7
|
# '$Revision: 5029 $'
|
|
8
|
#
|
|
9
|
# This program 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
|
# This program 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 this program; if not, write to the Free Software
|
|
21
|
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
22
|
#
|
|
23
|
|
|
24
|
package Metacat;
|
|
25
|
|
|
26
|
require 5.005_62;
|
|
27
|
use strict;
|
|
28
|
use warnings;
|
|
29
|
|
|
30
|
require Exporter;
|
|
31
|
use AutoLoader qw(AUTOLOAD);
|
|
32
|
|
|
33
|
use LWP::UserAgent;
|
|
34
|
use HTTP::Request::Common qw(POST);
|
|
35
|
use HTTP::Cookies;
|
|
36
|
|
|
37
|
our @ISA = qw(Exporter);
|
|
38
|
|
|
39
|
# Items to export into callers namespace by default. Note: do not export
|
|
40
|
# names by default without a very good reason. Use EXPORT_OK instead.
|
|
41
|
# Do not simply export all your public functions/methods/constants.
|
|
42
|
|
|
43
|
# This allows declaration use Metacat ':all';
|
|
44
|
# If you do not need this, moving things directly into @EXPORT or @EXPORT_OK
|
|
45
|
# will save memory.
|
|
46
|
our %EXPORT_TAGS = ( 'all' => [ qw(
|
|
47
|
|
|
48
|
) ] );
|
|
49
|
|
|
50
|
our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
|
|
51
|
|
|
52
|
our @EXPORT = qw(
|
|
53
|
|
|
54
|
);
|
|
55
|
our $VERSION = '0.01';
|
|
56
|
|
|
57
|
|
|
58
|
# Preloaded methods go here.
|
|
59
|
|
|
60
|
#############################################################
|
|
61
|
# Constructor creates a new class instance and inits all
|
|
62
|
# of the instance variables to their proper default values,
|
|
63
|
# which can later be changed using "set_options"
|
|
64
|
#############################################################
|
|
65
|
sub new {
|
|
66
|
my($type,$metacatUrl) = @_;
|
|
67
|
my $cookie_jar = HTTP::Cookies->new;
|
|
68
|
|
|
69
|
my $self = {
|
|
70
|
metacatUrl => $metacatUrl,
|
|
71
|
message => '',
|
|
72
|
cookies => \$cookie_jar
|
|
73
|
};
|
|
74
|
|
|
75
|
bless $self, $type;
|
|
76
|
return $self;
|
|
77
|
}
|
|
78
|
|
|
79
|
#############################################################
|
|
80
|
# subroutine to set options for the class, including the URL
|
|
81
|
# for the Metacat database to which we would connect
|
|
82
|
#############################################################
|
|
83
|
sub set_options {
|
|
84
|
my $self = shift;
|
|
85
|
my %newargs = ( @_ );
|
|
86
|
|
|
87
|
my $arg;
|
|
88
|
foreach $arg (keys %newargs) {
|
|
89
|
$self->{$arg} = $newargs{$arg};
|
|
90
|
}
|
|
91
|
}
|
|
92
|
|
|
93
|
#############################################################
|
|
94
|
# subroutine to send data to metacat and get the response
|
|
95
|
# return response from metacat
|
|
96
|
#############################################################
|
|
97
|
sub sendData {
|
|
98
|
my $self = shift;
|
|
99
|
my %postData = ( @_ );
|
|
100
|
|
|
101
|
$self->{'message'} = '';
|
|
102
|
my $userAgent = new LWP::UserAgent;
|
|
103
|
$userAgent->agent("MetacatClient/1.0");
|
|
104
|
|
|
105
|
# determine encoding type
|
|
106
|
my $contentType = 'application/x-www-form-urlencoded';
|
|
107
|
if ($postData{'enctype'}) {
|
|
108
|
$contentType = $postData{'enctype'};
|
|
109
|
delete $postData{'enctype'};
|
|
110
|
}
|
|
111
|
|
|
112
|
my $request = POST("$self->{'metacatUrl'}",
|
|
113
|
Content_Type => $contentType,
|
|
114
|
Content => \%postData
|
|
115
|
);
|
|
116
|
|
|
117
|
# set cookies on UA object
|
|
118
|
my $cookie_jar = $self->{'cookies'};
|
|
119
|
$$cookie_jar->add_cookie_header($request);
|
|
120
|
#print "Content_type:text/html\n\n";
|
|
121
|
#print "request: " . $request->as_string();
|
|
122
|
|
|
123
|
my $response = $userAgent->request($request);
|
|
124
|
#print "response: " . $response->as_string();
|
|
125
|
|
|
126
|
if ($response->is_success) {
|
|
127
|
# save the cookies
|
|
128
|
$$cookie_jar->extract_cookies($response);
|
|
129
|
# save the metacat response message
|
|
130
|
$self->{'message'} = $response->content;
|
|
131
|
} else {
|
|
132
|
#print "SendData content is: ", $response->content, "\n";
|
|
133
|
return 0;
|
|
134
|
}
|
|
135
|
return $response;
|
|
136
|
}
|
|
137
|
|
|
138
|
#############################################################
|
|
139
|
# subroutine to log into Metacat and save the cookie if the
|
|
140
|
# login is valid. If not valid, return 0. If valid then send
|
|
141
|
# following values to indicate user status
|
|
142
|
# 1 - user
|
|
143
|
# 2 - moderator
|
|
144
|
# 3 - administrator
|
|
145
|
# 4 - moderator and administrator
|
|
146
|
#############################################################
|
|
147
|
sub login {
|
|
148
|
my $self = shift;
|
|
149
|
my $username = shift;
|
|
150
|
my $password = shift;
|
|
151
|
|
|
152
|
my $returnval = 0;
|
|
153
|
|
|
154
|
my %postData = ( action => 'login',
|
|
155
|
qformat => 'xml',
|
|
156
|
username => $username,
|
|
157
|
password => $password
|
|
158
|
);
|
|
159
|
my $response = $self->sendData(%postData);
|
|
160
|
if (($response) && $response->content =~ /<login>/) {
|
|
161
|
$returnval = 1;
|
|
162
|
}
|
|
163
|
|
|
164
|
if (($response) && $response->content =~ /<isAdministrator>/) {
|
|
165
|
if (($response) && $response->content =~ /<isModerator>/) {
|
|
166
|
$returnval = 4;
|
|
167
|
} else {
|
|
168
|
$returnval = 3;
|
|
169
|
}
|
|
170
|
} elsif (($response) && $response->content =~ /<isModerator>/){
|
|
171
|
$returnval = 2;
|
|
172
|
}
|
|
173
|
|
|
174
|
return $returnval;
|
|
175
|
}
|
|
176
|
|
|
177
|
#############################################################
|
|
178
|
# subroutine to insert an XML document into Metacat
|
|
179
|
# If success, return 1, else return 0
|
|
180
|
#############################################################
|
|
181
|
sub insert {
|
|
182
|
my $self = shift;
|
|
183
|
my $docid = shift;
|
|
184
|
my $xmldocument = shift;
|
|
185
|
my $dtd = shift;
|
|
186
|
|
|
187
|
my $returnval = 0;
|
|
188
|
|
|
189
|
my %postData = ( action => 'insert',
|
|
190
|
docid => $docid,
|
|
191
|
doctext => $xmldocument
|
|
192
|
);
|
|
193
|
if ($dtd) {
|
|
194
|
$postData{'dtdtext'} = $dtd;
|
|
195
|
}
|
|
196
|
|
|
197
|
my $response = $self->sendData(%postData);
|
|
198
|
if (($response) && $response->content =~ /<success>/) {
|
|
199
|
$returnval = 1;
|
|
200
|
} elsif (($response)) {
|
|
201
|
$returnval = 0;
|
|
202
|
#print "Error response from sendData!\n";
|
|
203
|
#print $response->content, "\n";
|
|
204
|
} else {
|
|
205
|
$returnval = 0;
|
|
206
|
#print "Invalid response from sendData!\n";
|
|
207
|
}
|
|
208
|
|
|
209
|
return $returnval;
|
|
210
|
}
|
|
211
|
|
|
212
|
#############################################################
|
|
213
|
# subroutine to update an XML document in Metacat
|
|
214
|
# If success, return 1, else return 0
|
|
215
|
#############################################################
|
|
216
|
sub update {
|
|
217
|
my $self = shift;
|
|
218
|
my $docid = shift;
|
|
219
|
my $xmldocument = shift;
|
|
220
|
my $dtd = shift;
|
|
221
|
|
|
222
|
my $returnval = 0;
|
|
223
|
|
|
224
|
my %postData = ( action => 'update',
|
|
225
|
docid => $docid,
|
|
226
|
doctext => $xmldocument
|
|
227
|
);
|
|
228
|
if ($dtd) {
|
|
229
|
$postData{'dtdtext'} = $dtd;
|
|
230
|
}
|
|
231
|
|
|
232
|
my $response = $self->sendData(%postData);
|
|
233
|
if (($response) && $response->content =~ /<success>/) {
|
|
234
|
$returnval = 1;
|
|
235
|
}
|
|
236
|
|
|
237
|
return $returnval;
|
|
238
|
}
|
|
239
|
|
|
240
|
############################################################
|
|
241
|
# subroutine to upload an XML document in Metacat
|
|
242
|
# If success, return 1, else return 0
|
|
243
|
#############################################################
|
|
244
|
sub upload {
|
|
245
|
my $self = shift;
|
|
246
|
my $docid = shift;
|
|
247
|
my $datafile = shift;
|
|
248
|
|
|
249
|
my $returnval = 0;
|
|
250
|
|
|
251
|
my %postData = ( action => 'upload',
|
|
252
|
docid => $docid,
|
|
253
|
datafile => [$datafile],
|
|
254
|
enctype => 'form-data'
|
|
255
|
);
|
|
256
|
|
|
257
|
my $response = $self->sendData(%postData);
|
|
258
|
#print "response is: $response";
|
|
259
|
#
|
|
260
|
if (($response) && $response->content =~ /<success>/) {
|
|
261
|
$returnval = $response->content;
|
|
262
|
}
|
|
263
|
|
|
264
|
return $returnval;
|
|
265
|
}
|
|
266
|
|
|
267
|
|
|
268
|
#############################################################
|
|
269
|
# subroutine to delete an XML document in Metacat
|
|
270
|
# If success, return 1, else return 0
|
|
271
|
#############################################################
|
|
272
|
sub delete {
|
|
273
|
my $self = shift;
|
|
274
|
my $docid = shift;
|
|
275
|
|
|
276
|
my $returnval = 0;
|
|
277
|
|
|
278
|
my %postData = ( action => 'delete',
|
|
279
|
docid => $docid
|
|
280
|
);
|
|
281
|
|
|
282
|
my $response = $self->sendData(%postData);
|
|
283
|
if (($response) && $response->content =~ /<success>/) {
|
|
284
|
$returnval = 1;
|
|
285
|
}
|
|
286
|
|
|
287
|
return $returnval;
|
|
288
|
}
|
|
289
|
|
|
290
|
#############################################################
|
|
291
|
# subroutine to set access for an XML document in Metacat
|
|
292
|
# If success, return 1, else return 0
|
|
293
|
#############################################################
|
|
294
|
sub setaccess {
|
|
295
|
my $self = shift;
|
|
296
|
my $docid = shift;
|
|
297
|
my $principal = shift;
|
|
298
|
my $permission = shift;
|
|
299
|
my $permType = shift;
|
|
300
|
my $permOrder = shift;
|
|
301
|
|
|
302
|
my $returnval = 0;
|
|
303
|
|
|
304
|
my %postData = ( action => 'setaccess',
|
|
305
|
docid => $docid,
|
|
306
|
principal => $principal,
|
|
307
|
permission => $permission,
|
|
308
|
permType => $permType,
|
|
309
|
permOrder => $permOrder
|
|
310
|
);
|
|
311
|
|
|
312
|
my $response = $self->sendData(%postData);
|
|
313
|
if (($response) && $response->content =~ /<success>/) {
|
|
314
|
$returnval = 1;
|
|
315
|
}
|
|
316
|
|
|
317
|
return $returnval;
|
|
318
|
}
|
|
319
|
|
|
320
|
|
|
321
|
#############################################################
|
|
322
|
# subroutine to read an XML document from Metacat
|
|
323
|
# returns the XML from Metacat, which may be an error response
|
|
324
|
#############################################################
|
|
325
|
sub read {
|
|
326
|
my $self = shift;
|
|
327
|
my $docid = shift;
|
|
328
|
|
|
329
|
my %postData = ( action => 'read',
|
|
330
|
qformat => 'xml',
|
|
331
|
docid => $docid
|
|
332
|
);
|
|
333
|
|
|
334
|
my $response = $self->sendData(%postData);
|
|
335
|
|
|
336
|
my $returnval = 0;
|
|
337
|
if ($response) {
|
|
338
|
$returnval = $response;
|
|
339
|
}
|
|
340
|
|
|
341
|
return $returnval;
|
|
342
|
}
|
|
343
|
|
|
344
|
#############################################################
|
|
345
|
# subroutine to query metacat using a structured path query
|
|
346
|
# returns the XML from Metacat, which may be an error response
|
|
347
|
#############################################################
|
|
348
|
sub squery {
|
|
349
|
my $self = shift;
|
|
350
|
my $query = shift;
|
|
351
|
|
|
352
|
my %postData = ( action => 'squery',
|
|
353
|
qformat => 'xml',
|
|
354
|
query => $query
|
|
355
|
);
|
|
356
|
|
|
357
|
my $response = $self->sendData(%postData);
|
|
358
|
|
|
359
|
my $returnval = 0;
|
|
360
|
if ($response) {
|
|
361
|
$returnval = $response;
|
|
362
|
}
|
|
363
|
|
|
364
|
return $returnval;
|
|
365
|
}
|
|
366
|
|
|
367
|
#############################################################
|
|
368
|
# subroutine to get the maximimum id in a series
|
|
369
|
# If success, return max id, else return 0
|
|
370
|
#############################################################
|
|
371
|
sub getLastId {
|
|
372
|
my $self = shift;
|
|
373
|
my $scope = shift;
|
|
374
|
|
|
375
|
my $returnval = 0;
|
|
376
|
|
|
377
|
my %postData = ( action => 'getlastdocid',
|
|
378
|
scope => $scope
|
|
379
|
);
|
|
380
|
|
|
381
|
my $response = $self->sendData(%postData);
|
|
382
|
if (($response) && $response->content =~ /<docid>(.*)<\/docid>/s) {
|
|
383
|
$returnval = "$1";
|
|
384
|
} elsif (($response)) {
|
|
385
|
$returnval = 0;
|
|
386
|
#print "Error response from sendData!\n";
|
|
387
|
#print $response->content, "\n";
|
|
388
|
} else {
|
|
389
|
$returnval = 0;
|
|
390
|
#print "Invalid response from sendData!\n";
|
|
391
|
}
|
|
392
|
|
|
393
|
return $returnval;
|
|
394
|
}
|
|
395
|
#############################################################
|
|
396
|
# subroutine to get the message returned from the last executed
|
|
397
|
# metacat action. These are generally XML formatted messages.
|
|
398
|
#############################################################
|
|
399
|
sub getMessage {
|
|
400
|
my $self = shift;
|
|
401
|
|
|
402
|
return $self->{'message'};
|
|
403
|
}
|
|
404
|
|
|
405
|
#############################################################
|
|
406
|
# subroutine to get the cookies returned from the metacat
|
|
407
|
# server to establish (and pass on) session info (JSESSIONID).
|
|
408
|
#############################################################
|
|
409
|
sub getCookies {
|
|
410
|
my $self = shift;
|
|
411
|
|
|
412
|
return $self->{'cookies'};
|
|
413
|
}
|
|
414
|
|
|
415
|
# Autoload methods go after =cut, and are processed by the autosplit program.
|
|
416
|
|
|
417
|
1;
|
|
418
|
__END__
|
|
419
|
# Below is stub documentation for your module. You better edit it!
|
|
420
|
|
|
421
|
=head1 NAME
|
|
422
|
|
|
423
|
Metacat - Perl extension for communicating with the Metacat XML database
|
|
424
|
|
|
425
|
=head1 SYNOPSIS
|
|
426
|
|
|
427
|
use Metacat;
|
|
428
|
my $metacat = Metacat->new();
|
|
429
|
my $response = $metacat->login($username, $password);
|
|
430
|
print $metacat->getMessage();
|
|
431
|
$response = $metacat->insert($docid, $xmldoc);
|
|
432
|
print $metacat->getMessage();
|
|
433
|
$response = $metacat->insert($docid, $xmldoc, $dtd);
|
|
434
|
print $metacat->getMessage();
|
|
435
|
$response = $metacat->update($docid, $xmldoc);
|
|
436
|
print $metacat->getMessage();
|
|
437
|
$response = $metacat->upload($docid, $data);
|
|
438
|
print $metacat->getMessage();
|
|
439
|
$htmlResponse = $metacat->read($docid);
|
|
440
|
$xmldoc = $htmlResponse->content();
|
|
441
|
print $xmldoc;
|
|
442
|
$resultset = $metacat->squery($pathquery);
|
|
443
|
print $resultset;
|
|
444
|
$response = $metacat->delete($docid);
|
|
445
|
$response = $metacat->setaccess($docid,$principal,$permission,$permType,$permOrder);
|
|
446
|
my $lastid = $metacat->getLastId("obfs");
|
|
447
|
print $metacat->getMessage();
|
|
448
|
$response = $metacat->getCookies();
|
|
449
|
print $metacat->getMessage();
|
|
450
|
|
|
451
|
=head1 DESCRIPTION
|
|
452
|
|
|
453
|
This is a client library for accessing the Metacat XML database. Metacat
|
|
454
|
is a Java servlet that accepts commands over HTTP and returns XML and
|
|
455
|
HTML responses. See http://knb.ecoinformatics.org for details about
|
|
456
|
Metacat and its interface.
|
|
457
|
|
|
458
|
=head2 EXPORT
|
|
459
|
|
|
460
|
None by default.
|
|
461
|
|
|
462
|
|
|
463
|
=head1 AUTHOR
|
|
464
|
|
|
465
|
Matthew B. Jones, jones@nceas.ucsb.edu
|
|
466
|
|
|
467
|
=head1 SEE ALSO
|
|
468
|
|
|
469
|
perl(1).
|
|
470
|
|
|
471
|
=cut
|