1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* Setting some often needed namespace prefixes |
5
|
|
|
*/ |
6
|
|
|
EasyRdf\RdfNamespace::set('skosmos', 'http://purl.org/net/skosmos#'); |
7
|
|
|
EasyRdf\RdfNamespace::set('skosext', 'http://purl.org/finnonto/schema/skosext#'); |
8
|
|
|
EasyRdf\RdfNamespace::delete('geo'); |
9
|
|
|
EasyRdf\RdfNamespace::set('wgs84', 'http://www.w3.org/2003/01/geo/wgs84_pos#'); |
10
|
|
|
EasyRdf\RdfNamespace::set('isothes', 'http://purl.org/iso25964/skos-thes#'); |
11
|
|
|
EasyRdf\RdfNamespace::set('mads', 'http://www.loc.gov/mads/rdf/v1#'); |
12
|
|
|
EasyRdf\RdfNamespace::set('wd', 'http://www.wikidata.org/entity/'); |
13
|
|
|
EasyRdf\RdfNamespace::set('wdt', 'http://www.wikidata.org/prop/direct/'); |
14
|
|
|
|
15
|
|
|
/** |
16
|
|
|
* GlobalConfig provides access to the Skosmos configuration. |
17
|
|
|
*/ |
18
|
|
|
class GlobalConfig extends BaseConfig { |
19
|
|
|
|
20
|
|
|
/** Cache reference */ |
21
|
|
|
private $cache; |
22
|
|
|
/** Location of the configuration file. Used for caching. */ |
23
|
|
|
private $filePath; |
24
|
|
|
/** Namespaces from vocabularies configuration file. */ |
25
|
|
|
private $namespaces; |
26
|
|
|
/** EasyRdf\Graph graph */ |
27
|
|
|
private $graph; |
28
|
|
|
/** |
29
|
|
|
* @var int the time the config file was last modified |
30
|
|
|
*/ |
31
|
|
|
private $configModifiedTime = null; |
32
|
|
|
|
33
|
|
|
public function __construct($config_name='/../config.ttl') |
34
|
|
|
{ |
35
|
|
|
$this->cache = new Cache(); |
36
|
|
|
try { |
37
|
|
|
$this->filePath = realpath( dirname(__FILE__) . $config_name ); |
38
|
|
|
if (!file_exists($this->filePath)) { |
39
|
|
|
throw new Exception('config.ttl file is missing, please provide one.'); |
40
|
|
|
} |
41
|
|
|
$this->initializeConfig(); |
42
|
|
|
} catch (Exception $e) { |
43
|
|
|
echo "Error: " . $e->getMessage(); |
44
|
|
|
return; |
45
|
|
|
} |
46
|
|
|
} |
47
|
|
|
|
48
|
|
|
public function getCache() |
49
|
|
|
{ |
50
|
|
|
return $this->cache; |
51
|
|
|
} |
52
|
|
|
|
53
|
|
|
/** |
54
|
|
|
* @return int the time the config file was last modified |
55
|
|
|
*/ |
56
|
|
|
public function getConfigModifiedTime() |
57
|
|
|
{ |
58
|
|
|
return $this->configModifiedTime; |
59
|
|
|
} |
60
|
|
|
|
61
|
|
|
/** |
62
|
|
|
* Initialize configuration, reading the configuration file from disk or URL, |
63
|
|
|
* and creating the graph and resources objects. Uses a cache if available, |
64
|
|
|
* in order to avoid re-loading the complete configuration on each request. |
65
|
|
|
*/ |
66
|
|
|
private function initializeConfig() |
67
|
|
|
{ |
68
|
|
|
try { |
69
|
|
|
// retrieve last modified time for config file (filemtime returns int|bool!) |
70
|
|
|
$configModifiedTime = filemtime($this->filePath); |
71
|
|
|
if (!is_bool($configModifiedTime)) { |
|
|
|
|
72
|
|
|
$this->configModifiedTime = $configModifiedTime; |
73
|
|
|
} |
74
|
|
|
// use APC user cache to store parsed config.ttl configuration |
75
|
|
|
if ($this->cache->isAvailable() && !is_null($this->configModifiedTime)) { |
76
|
|
|
// @codeCoverageIgnoreStart |
77
|
|
|
$key = realpath($this->filePath) . ", " . $this->configModifiedTime; |
78
|
|
|
$nskey = "namespaces of " . $key; |
79
|
|
|
$this->graph = $this->cache->fetch($key); |
80
|
|
|
$this->namespaces = $this->cache->fetch($nskey); |
81
|
|
|
if ($this->graph && $this->namespaces) { // found in cache |
82
|
|
|
$this->resource = $this->configResource($this->graph, "cache"); |
83
|
|
|
} else { |
84
|
|
|
$this->parseConfig($this->filePath); |
85
|
|
|
$this->cache->store($key, $this->graph); |
86
|
|
|
$this->cache->store($nskey, $this->namespaces); |
87
|
|
|
} |
88
|
|
|
// @codeCoverageIgnoreEnd |
89
|
|
|
} else { // APC not available, parse on every request |
90
|
|
|
$this->parseConfig($this->filePath); |
91
|
|
|
} |
92
|
|
|
|
93
|
|
|
$this->initializeNamespaces(); |
94
|
|
|
} catch (Exception $e) { |
95
|
|
|
echo "Error: " . $e->getMessage(); |
96
|
|
|
} |
97
|
|
|
} |
98
|
|
|
|
99
|
|
|
/** |
100
|
|
|
* Ensure there is exactely one skosmos:Configuration and return it. |
101
|
|
|
*/ |
102
|
|
|
private function configResource($graph, $source) { |
103
|
|
|
$configResources = $graph->allOfType("skosmos:Configuration"); |
104
|
|
|
if (is_null($configResources) || !is_array($configResources) || count($configResources) !== 1) { |
105
|
|
|
throw new Exception("$source must have exactly one skosmos:Configuration"); |
106
|
|
|
} |
107
|
|
|
return $configResources[0]; |
108
|
|
|
} |
109
|
|
|
|
110
|
|
|
/** |
111
|
|
|
* Retrieves and parses configuration with optional inclusion. |
112
|
|
|
* @param string file or URL of configuration in Turtle syntax. |
113
|
|
|
* @param int inclusion depth (0 for root configuration) |
|
|
|
|
114
|
|
|
* @throws \EasyRdf\Exception |
115
|
|
|
*/ |
116
|
|
|
private function parseConfig($location, $depth=0) { |
117
|
|
|
if (str_starts_with($location, "http://") || str_starts_with($location, "https://")) { |
118
|
|
|
$ch = curl_init($location); |
119
|
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
120
|
|
|
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: text/turtle')); |
121
|
|
|
$turtle = curl_exec($ch); |
122
|
|
|
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
123
|
|
|
if ($httpCode != 200 && $httpCode != 303) { |
124
|
|
|
throw new Exception("Failed to include configuration from $location"); |
125
|
|
|
} |
126
|
|
|
curl_close($ch); |
127
|
|
|
} else { |
128
|
|
|
if (file_exists($location)) { |
129
|
|
|
$turtle = file_get_contents($location); |
130
|
|
|
} else { |
131
|
|
|
throw new Exception("Config file $location does not exist!"); |
132
|
|
|
} |
133
|
|
|
} |
134
|
|
|
|
135
|
|
|
$parser = new SkosmosTurtleParser(); |
136
|
|
|
try { |
137
|
|
|
$graph = $parser->parseGraph($turtle, $location); |
138
|
|
|
$namespaces = $parser->getNamespaces(); |
139
|
|
|
} catch (Exception $e) { |
140
|
|
|
throw new Exception("Failed to parse $location: " . $e->getMessage()); |
141
|
|
|
} |
142
|
|
|
|
143
|
|
|
$configResource = $this->configResource($graph, $location); |
144
|
|
|
|
145
|
|
|
if ($depth === 0) { |
146
|
|
|
$this->graph = $graph; |
147
|
|
|
$this->namespaces = $namespaces; |
148
|
|
|
$this->resource = $configResource; |
149
|
|
|
} else { |
150
|
|
|
// Add triples to existing configuration |
151
|
|
|
foreach($graph->resources() as $resource) { |
152
|
|
|
$subject = $resource == $configResource ? $this->resource : $resource; |
153
|
|
|
foreach($graph->properties($resource) as $property) { |
154
|
|
|
foreach($resource->all($property) as $value) { |
155
|
|
|
$this->graph->add($subject, $property, $value); |
156
|
|
|
} |
157
|
|
|
} |
158
|
|
|
} |
159
|
|
|
// Add namespaces unless prefix has been defined |
160
|
|
|
foreach ($namespaces as $prefix => $fullUri) { |
161
|
|
|
if (!isset($this->namespaces[$prefix])) { |
162
|
|
|
$this->namespaces[$prefix] = $fullUri; |
163
|
|
|
} |
164
|
|
|
} |
165
|
|
|
} |
166
|
|
|
|
167
|
|
|
// only include up to four levels |
168
|
|
|
if ($depth < 4) { |
169
|
|
|
$includes = $this->graph->allResources($this->resource, "skosmos:includeConfig"); |
170
|
|
|
foreach($includes as $location) { |
|
|
|
|
171
|
|
|
$this->parseConfig($location->getUri(), $depth+1); |
172
|
|
|
} |
173
|
|
|
} |
174
|
|
|
} |
175
|
|
|
|
176
|
|
|
/** |
177
|
|
|
* Returns the graph created after parsing the configuration file. |
178
|
|
|
* @return \EasyRdf\Graph |
179
|
|
|
*/ |
180
|
|
|
public function getGraph() |
181
|
|
|
{ |
182
|
|
|
return $this->graph; |
183
|
|
|
} |
184
|
|
|
|
185
|
|
|
/** |
186
|
|
|
* Registers RDF namespaces from the config.ttl file for use by EasyRdf (e.g. serializing) |
187
|
|
|
*/ |
188
|
|
|
private function initializeNamespaces() { |
189
|
|
|
foreach ($this->namespaces as $prefix => $fullUri) { |
190
|
|
|
if ($prefix != '' && EasyRdf\RdfNamespace::get($prefix) === null) // if not already defined |
191
|
|
|
{ |
192
|
|
|
EasyRdf\RdfNamespace::set($prefix, $fullUri); |
193
|
|
|
} |
194
|
|
|
} |
195
|
|
|
} |
196
|
|
|
|
197
|
|
|
/** |
198
|
|
|
* Returns the UI languages specified in the configuration or defaults to |
199
|
|
|
* only show English |
200
|
|
|
* @return array |
201
|
|
|
*/ |
202
|
|
|
public function getLanguages() |
203
|
|
|
{ |
204
|
|
|
$languageResources = $this->getResource()->getResource('skosmos:languages'); |
205
|
|
|
if (!is_null($languageResources) && !empty($languageResources)) { |
206
|
|
|
$languages = array(); |
207
|
|
|
foreach ($languageResources as $languageResource) { |
208
|
|
|
/** @var \EasyRdf\Literal $languageName */ |
209
|
|
|
$languageName = $languageResource->getLiteral('rdfs:label'); |
210
|
|
|
/** @var \EasyRdf\Literal $languageValue */ |
211
|
|
|
$languageValue = $languageResource->getLiteral('rdf:value'); |
212
|
|
|
if ($languageName && $languageValue) { |
213
|
|
|
$languages[$languageName->getValue()] = $languageValue->getValue(); |
214
|
|
|
} |
215
|
|
|
} |
216
|
|
|
return $languages; |
217
|
|
|
} else { |
218
|
|
|
return array('en' => 'en_GB.utf8'); |
219
|
|
|
} |
220
|
|
|
} |
221
|
|
|
|
222
|
|
|
/** |
223
|
|
|
* Returns the external HTTP request timeout in seconds or the default value |
224
|
|
|
* of 5 seconds if not specified in the configuration. |
225
|
|
|
* @return integer |
226
|
|
|
*/ |
227
|
|
|
public function getHttpTimeout() |
228
|
|
|
{ |
229
|
|
|
return $this->getLiteral('skosmos:httpTimeout', 5); |
|
|
|
|
230
|
|
|
} |
231
|
|
|
|
232
|
|
|
/** |
233
|
|
|
* Returns the SPARQL HTTP request timeout in seconds or the default value |
234
|
|
|
* of 20 seconds if not specified in the configuration. |
235
|
|
|
* @return integer |
236
|
|
|
*/ |
237
|
|
|
public function getSparqlTimeout() |
238
|
|
|
{ |
239
|
|
|
return $this->getLiteral('skosmos:sparqlTimeout', 20); |
|
|
|
|
240
|
|
|
} |
241
|
|
|
|
242
|
|
|
/** |
243
|
|
|
* Returns the sparql endpoint address defined in the configuration. If |
244
|
|
|
* not then defaulting to http://localhost:3030/ds/sparql |
245
|
|
|
* @return string |
246
|
|
|
*/ |
247
|
|
|
public function getDefaultEndpoint() |
248
|
|
|
{ |
249
|
|
|
$endpoint = $this->resource->get('skosmos:sparqlEndpoint'); |
250
|
|
|
if ($endpoint) { |
251
|
|
|
return $endpoint->getUri(); |
252
|
|
|
} elseif (getenv('SKOSMOS_SPARQL_ENDPOINT')) { |
253
|
|
|
return getenv('SKOSMOS_SPARQL_ENDPOINT'); |
254
|
|
|
} else { |
255
|
|
|
return 'http://localhost:3030/ds/sparql'; |
256
|
|
|
} |
257
|
|
|
} |
258
|
|
|
|
259
|
|
|
/** |
260
|
|
|
* Returns the maximum number of items to return in transitive queries if defined |
261
|
|
|
* in the configuration or the default value of 1000. |
262
|
|
|
* @return integer |
263
|
|
|
*/ |
264
|
|
|
public function getDefaultTransitiveLimit() |
265
|
|
|
{ |
266
|
|
|
return $this->getLiteral('skosmos:transitiveLimit', 1000); |
|
|
|
|
267
|
|
|
} |
268
|
|
|
|
269
|
|
|
/** |
270
|
|
|
* Returns the maximum number of items to load at a time if defined |
271
|
|
|
* in the configuration or the default value of 20. |
272
|
|
|
* @return integer |
273
|
|
|
*/ |
274
|
|
|
public function getSearchResultsSize() |
275
|
|
|
{ |
276
|
|
|
return $this->getLiteral('skosmos:searchResultsSize', 20); |
|
|
|
|
277
|
|
|
} |
278
|
|
|
|
279
|
|
|
/** |
280
|
|
|
* Returns the configured location for the twig template cache and if not |
281
|
|
|
* defined defaults to "/tmp/skosmos-template-cache" |
282
|
|
|
* @return string |
283
|
|
|
*/ |
284
|
|
|
public function getTemplateCache() |
285
|
|
|
{ |
286
|
|
|
return $this->getLiteral('skosmos:templateCache', '/tmp/skosmos-template-cache'); |
287
|
|
|
} |
288
|
|
|
|
289
|
|
|
/** |
290
|
|
|
* Returns the defined sparql-query extension eg. "JenaText" or |
291
|
|
|
* if not defined falling back to SPARQL 1.1 |
292
|
|
|
* @return string |
293
|
|
|
*/ |
294
|
|
|
public function getDefaultSparqlDialect() |
295
|
|
|
{ |
296
|
|
|
return $this->getLiteral('skosmos:sparqlDialect', 'Generic'); |
297
|
|
|
} |
298
|
|
|
|
299
|
|
|
/** |
300
|
|
|
* Returns the feedback address defined in the configuration. |
301
|
|
|
* @return string |
302
|
|
|
*/ |
303
|
|
|
public function getFeedbackAddress() |
304
|
|
|
{ |
305
|
|
|
return $this->getLiteral('skosmos:feedbackAddress', null); |
306
|
|
|
} |
307
|
|
|
|
308
|
|
|
/** |
309
|
|
|
* Returns the feedback sender address defined in the configuration. |
310
|
|
|
* @return string |
311
|
|
|
*/ |
312
|
|
|
public function getFeedbackSender() |
313
|
|
|
{ |
314
|
|
|
return $this->getLiteral('skosmos:feedbackSender', null); |
315
|
|
|
} |
316
|
|
|
|
317
|
|
|
/** |
318
|
|
|
* Returns the feedback envelope sender address defined in the configuration. |
319
|
|
|
* @return string |
320
|
|
|
*/ |
321
|
|
|
public function getFeedbackEnvelopeSender() |
322
|
|
|
{ |
323
|
|
|
return $this->getLiteral('skosmos:feedbackEnvelopeSender', null); |
324
|
|
|
} |
325
|
|
|
|
326
|
|
|
/** |
327
|
|
|
* Returns true if exception logging has been configured. |
328
|
|
|
* @return boolean |
329
|
|
|
*/ |
330
|
|
|
public function getLogCaughtExceptions() |
331
|
|
|
{ |
332
|
|
|
return $this->getBoolean('skosmos:logCaughtExceptions', FALSE); |
333
|
|
|
} |
334
|
|
|
|
335
|
|
|
/** |
336
|
|
|
* Returns true if browser console logging has been enabled, |
337
|
|
|
* @return boolean |
338
|
|
|
*/ |
339
|
|
|
public function getLoggingBrowserConsole() |
340
|
|
|
{ |
341
|
|
|
return $this->getBoolean('skosmos:logBrowserConsole', FALSE); |
342
|
|
|
} |
343
|
|
|
|
344
|
|
|
/** |
345
|
|
|
* Returns the name of a log file if configured, or NULL otherwise. |
346
|
|
|
* @return string |
347
|
|
|
*/ |
348
|
|
|
public function getLoggingFilename() |
349
|
|
|
{ |
350
|
|
|
return $this->getLiteral('skosmos:logFileName', null); |
351
|
|
|
} |
352
|
|
|
|
353
|
|
|
/** |
354
|
|
|
* @return string |
355
|
|
|
*/ |
356
|
|
|
public function getServiceName() |
357
|
|
|
{ |
358
|
|
|
return $this->getLiteral('skosmos:serviceName', 'Skosmos'); |
359
|
|
|
} |
360
|
|
|
|
361
|
|
|
/** |
362
|
|
|
* @return string |
363
|
|
|
*/ |
364
|
|
|
public function getCustomCss() |
365
|
|
|
{ |
366
|
|
|
return $this->getLiteral('skosmos:customCss', null); |
367
|
|
|
} |
368
|
|
|
|
369
|
|
|
/** |
370
|
|
|
* @return boolean |
371
|
|
|
*/ |
372
|
|
|
public function getUiLanguageDropdown() |
373
|
|
|
{ |
374
|
|
|
return $this->getBoolean('skosmos:uiLanguageDropdown', FALSE); |
375
|
|
|
} |
376
|
|
|
|
377
|
|
|
/** |
378
|
|
|
* @return string |
379
|
|
|
*/ |
380
|
|
|
public function getBaseHref() |
381
|
|
|
{ |
382
|
|
|
return $this->getLiteral('skosmos:baseHref', null); |
383
|
|
|
} |
384
|
|
|
|
385
|
|
|
/** |
386
|
|
|
* @return array |
387
|
|
|
*/ |
388
|
|
|
public function getGlobalPlugins() |
389
|
|
|
{ |
390
|
|
|
$globalPlugins = array(); |
391
|
|
|
$globalPluginsResource = $this->getResource()->getResource("skosmos:globalPlugins"); |
392
|
|
|
if ($globalPluginsResource) { |
|
|
|
|
393
|
|
|
foreach ($globalPluginsResource as $resource) { |
394
|
|
|
$globalPlugins[] = $resource->getValue(); |
395
|
|
|
} |
396
|
|
|
} |
397
|
|
|
return $globalPlugins; |
398
|
|
|
} |
399
|
|
|
|
400
|
|
|
/** |
401
|
|
|
* @return boolean |
402
|
|
|
*/ |
403
|
|
|
public function getHoneypotEnabled() |
404
|
|
|
{ |
405
|
|
|
return $this->getBoolean('skosmos:uiHoneypotEnabled', TRUE); |
406
|
|
|
} |
407
|
|
|
|
408
|
|
|
/** |
409
|
|
|
* @return integer |
410
|
|
|
*/ |
411
|
|
|
public function getHoneypotTime() |
412
|
|
|
{ |
413
|
|
|
return $this->getLiteral('skosmos:uiHoneypotTime', 5); |
|
|
|
|
414
|
|
|
} |
415
|
|
|
|
416
|
|
|
/** |
417
|
|
|
* @return boolean |
418
|
|
|
*/ |
419
|
|
|
public function getCollationEnabled() |
420
|
|
|
{ |
421
|
|
|
return $this->getBoolean('skosmos:sparqlCollationEnabled', FALSE); |
422
|
|
|
} |
423
|
|
|
} |
424
|
|
|
|