joomla-platform / libraries / joomla / installer / adapters / plugin.php

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Installer
 *
 * @copyright   Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

jimport('joomla.base.adapterinstance');

/**
 * Plugin installer
 *
 * @package		Joomla.Platform
 * @subpackage	Installer
 * @since		11.1
 */
class JInstallerPlugin extends JAdapterInstance
{
	/** 
	 * @var string install function routing 
	 * */
	var $route = 'install';

	protected $manifest = null;
	protected $manifest_script = null;
	protected $name = null;
	protected $scriptElement = null;
	protected $oldFiles = null;

	/**
	 * Custom loadLanguage method
	 *
	 * @param	string	$path the path where to find language files
	 * @since	11.1
	 */
	public function loadLanguage($path=null)
	{
		$source = $this->parent->getPath('source');
		if (!$source) {
			$this->parent->setPath('source', JPATH_PLUGINS . '/'.$this->parent->extension->folder.'/'.$this->parent->extension->element);
		}
		$this->manifest = $this->parent->getManifest();
		$element = $this->manifest->files;
		if ($element)
		{
			$group = strtolower((string)$this->manifest->attributes()->group);
			$name = '';
			if (count($element->children()))
			{
				foreach ($element->children() as $file)
				{
					if ((string)$file->attributes()->plugin)
					{
						$name = strtolower((string)$file->attributes()->plugin);
						break;
					}
				}
			}
			if ($name)
			{
				$extension = "plg_${group}_${name}";
				$lang = JFactory::getLanguage();
				$source = $path ? $path : JPATH_PLUGINS . "/$group/$name";
				$folder = (string)$element->attributes()->folder;
				if ($folder && file_exists("$path/$folder"))
				{
					$source = "$path/$folder";
				}
				$lang->load($extension . '.sys', $source, null, false, false)
				||	$lang->load($extension . '.sys', JPATH_ADMINISTRATOR, null, false, false)
				||	$lang->load($extension . '.sys', $source, $lang->getDefault(), false, false)
				||	$lang->load($extension . '.sys', JPATH_ADMINISTRATOR, $lang->getDefault(), false, false);
			}
		}
	}
	/**
	 * Custom install method
	 *
	 * @return	boolean	True on success
	 * @since	11.1
	 */
	public function install()
	{
		// Get a database connector object
		$db = $this->parent->getDbo();

		// Get the extension manifest object
		$this->manifest = $this->parent->getManifest();

		$xml = $this->manifest;

		// Manifest Document Setup Section

		// Set the extension name
		$name = (string)$xml->name;
		$name = JFilterInput::getInstance()->clean($name, 'string');
		$this->set('name', $name);

		// Get the component description
		$description = (string)$xml->description;
		if ($description) {
			$this->parent->set('message', JText::_($description));
		}
		else {
			$this->parent->set('message', '');
		}

		/*
		 * Backward Compatability
		 * @todo Deprecate in future version
		 */
		$type = (string)$xml->attributes()->type;

		// Set the installation path
		if (count($xml->files->children()))
		{
			foreach ($xml->files->children() as $file)
			{
				if ((string)$file->attributes()->$type)
				{
					$element = (string)$file->attributes()->$type;
					break;
				}
			}
		}
		$group = (string)$xml->attributes()->group;
		if (!empty ($element) && !empty($group)) {
			$this->parent->setPath('extension_root', JPATH_PLUGINS.DS.$group.DS.$element);
		}
		else
		{
			$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_NO_FILE', JText::_('JLIB_INSTALLER_'.$this->route)));
			return false;
		}


		// Check if we should enable overwrite settings

		// Check to see if a plugin by the same name is already installed
		$query = 'SELECT `extension_id`' .
				' FROM `#__extensions`' .
				' WHERE folder = '.$db->Quote($group) .
				' AND element = '.$db->Quote($element);
		$db->setQuery($query);
		try {
			$db->Query();
		}
		catch(JException $e)
		{
			// Install failed, roll back changes
			$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_ROLLBACK', JText::_('JLIB_INSTALLER_'.$this->route), $db->stderr(true)));
			return false;
		}
		$id = $db->loadResult();

		// If it's on the fs...
		if (file_exists($this->parent->getPath('extension_root')) && (!$this->parent->getOverwrite() || $this->parent->getUpgrade()))
		{
			$updateElement = $xml->update;
			// Upgrade manually set or
			// Update function available or
			// Update tag detected
			if ($this->parent->getUpgrade() || ($this->parent->manifestClass && method_exists($this->parent->manifestClass,'update')) || is_a($updateElement, 'JXMLElement'))
			{
				// Force this one
				$this->parent->setOverwrite(true);
				$this->parent->setUpgrade(true);
				if ($id) { 
					// If there is a matching extension mark this as an update; semantics really
					$this->route = 'update';
				}
			}
			else if (!$this->parent->getOverwrite())
			{
				// Overwrite is set
				// We didn't have overwrite set, find an udpate function or find an update tag so lets call it safe
				$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_DIRECTORY', JText::_('JLIB_INSTALLER_'.$this->route), $this->parent->getPath('extension_root')));
				return false;
			}
		}

		 // Installer Trigger Loading

		// If there is an manifest class file, let's load it; we'll copy it later (don't have destination yet).
		
		if ((string)$xml->scriptfile)
		{
			$manifestScript = (string)$xml->scriptfile;
			$manifestScriptFile = $this->parent->getPath('source').DS.$manifestScript;
			if (is_file($manifestScriptFile))
			{
				// Load the file
				include_once $manifestScriptFile;
			}
			// Set the class name
			$classname = 'plg'.$group.$element.'InstallerScript';
			if (class_exists($classname))
			{
				// Create a new instance
				$this->parent->manifestClass = new $classname($this);
				// And set this so we can copy it later
				$this->set('manifest_script', $manifestScript);
				// Note: if we don't find the class, don't bother to copy the file
			}
		}

		// Run preflight if possible (since we know we're not an update)
		ob_start();
		ob_implicit_flush(false);
		if ($this->parent->manifestClass && method_exists($this->parent->manifestClass,'preflight'))
		{
			if($this->parent->manifestClass->preflight($this->route, $this) === false)
			{
				// Install failed, rollback changes
				$this->parent->abort(JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
				return false;
			}
		}
		$msg = ob_get_contents(); // create msg object; first use here
		ob_end_clean();

		 // Filesystem Processing Section

		// If the plugin directory does not exist, lets create it
		$created = false;
		if (!file_exists($this->parent->getPath('extension_root')))
		{
			if (!$created = JFolder::create($this->parent->getPath('extension_root')))
			{
				$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_CREATE_DIRECTORY', JText::_('JLIB_INSTALLER_'.$this->route), $this->parent->getPath('extension_root')));
				return false;
			}
		}

		// If we're updating at this point when there is always going to be an extension_root find the old xml files
		if($this->route == 'update')
		{
			// Hunt for the original XML file
			$old_manifest = null;
			$tmpInstaller = new JInstaller(); // create a new installer because findManifest sets stuff; side effects!
			// Look in the extension root
			$tmpInstaller->setPath('source', $this->parent->getPath('extension_root'));
			if ($tmpInstaller->findManifest())
			{
				$old_manifest = $tmpInstaller->getManifest();
				$this->oldFiles = $old_manifest->files;
			}
		}

		 // If we created the plugin directory and will want to remove it if we
		 // have to roll back the installation, let's add it to the installation
		 // step stack
		 
		if ($created) {
			$this->parent->pushStep(array ('type' => 'folder', 'path' => $this->parent->getPath('extension_root')));
		}

		// Copy all necessary files
		if ($this->parent->parseFiles($xml->files, -1, $this->oldFiles) === false)
		{
			// Install failed, roll back changes
			$this->parent->abort();
			return false;
		}

		// Parse optional tags -- media and language files for plugins go in admin app
		$this->parent->parseMedia($xml->media, 1);
		$this->parent->parseLanguages($xml->languages, 1);

		// If there is a manifest script, lets copy it.
		if ($this->get('manifest_script'))
		{
			$path['src'] = $this->parent->getPath('source').DS.$this->get('manifest_script');
			$path['dest'] = $this->parent->getPath('extension_root').DS.$this->get('manifest_script');

			if (!file_exists($path['dest']))
			{
				if (!$this->parent->copyFiles(array ($path)))
				{
					// Install failed, rollback changes
					$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_MANIFEST', JText::_('JLIB_INSTALLER_'.$this->route)));
					return false;
				}
			}
		}

		 // Database Processing Section

		$row = JTable::getInstance('extension');
		// Was there a plugin with the same name already installed?
		if ($id)
		{
			if (!$this->parent->getOverwrite())
			{
				// Install failed, roll back changes
				$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_ALLREADY_EXISTS', JText::_('JLIB_INSTALLER_'.$this->route), $this->get('name')));
				return false;
			}
			$row->load($id);
			$row->name = $this->get('name');
			$row->manifest_cache = $this->parent->generateManifestCache();
			$row->store(); // update the manifest cache and name
		}
		else
		{
			// Store in the extensions table (1.6)
			$row->name = $this->get('name');
			$row->type = 'plugin';
			$row->ordering = 0;
			$row->element = $element;
			$row->folder = $group;
			$row->enabled = 0;
			$row->protected = 0;
			$row->access = 1;
			$row->client_id = 0;
			$row->params = $this->parent->getParams();
			// Custom data
			$row->custom_data = '';
			// System data
			$row->system_data = ''; 
			$row->manifest_cache = $this->parent->generateManifestCache();

			// Editor plugins are published by default
			if ($group == 'editors') {
				$row->enabled = 1;
			}

			if (!$row->store())
			{
				// Install failed, roll back changes
				$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_ROLLBACK', JText::_('JLIB_INSTALLER_'.$this->route), $db->stderr(true)));
				return false;
			}

			// Since we have created a plugin item, we add it to the installation step stack
			// so that if we have to rollback the changes we can undo it.
			$this->parent->pushStep(array ('type' => 'extension', 'id' => $row->extension_id));
			$id = $row->extension_id;
		}

		 // Let's run the queries for the module
		 //	If Joomla 1.5 compatible, with discreet sql files - execute appropriate
		 //	file for utf-8 support or non-utf-8 support
		 
		// Try for Joomla 1.5 type queries
		// Second argument is the utf compatible version attribute
		if(strtolower($this->route) == 'install') {
			$utfresult = $this->parent->parseSQLFiles($this->manifest->install->sql);
			if ($utfresult === false)
			{
				// Install failed, rollback changes
				$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_SQL_ERROR', JText::_('JLIB_INSTALLER_'.$this->route), $db->stderr(true)));
				return false;
			}

			// Set the schema version to be the latest update version
			if($this->manifest->update) {
				$this->parent->setSchemaVersion($this->manifest->update->schemas, $row->extension_id);
			}
		} else if(strtolower($this->route) == 'update') {
			if($this->manifest->update)
			{
				$result = $this->parent->parseSchemaUpdates($this->manifest->update->schemas, $row->extension_id);
				if ($result === false)
				{
					// Install failed, rollback changes
					$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_UPDATE_SQL_ERROR', $db->stderr(true)));
					return false;
				}
			}
		}

		// Start Joomla! 1.6
		ob_start();
		ob_implicit_flush(false);
		if ($this->parent->manifestClass && method_exists($this->parent->manifestClass,$this->route))
		{
			if($this->parent->manifestClass->{$this->route}($this) === false)
			{
				// Install failed, rollback changes
				$this->parent->abort(JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
				return false;
			}
		}
		// Append messages
		$msg .= ob_get_contents(); 
		ob_end_clean();

		// Finalization and Cleanup Section

		// Lastly, we will copy the manifest file to its appropriate place.
		if (!$this->parent->copyManifest(-1))
		{
			// Install failed, rollback changes
			$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_INSTALL_COPY_SETUP', JText::_('JLIB_INSTALLER_'.$this->route)));
			return false;
		}
		// And now we run the postflight
		ob_start();
		ob_implicit_flush(false);
		if ($this->parent->manifestClass && method_exists($this->parent->manifestClass,'postflight'))
		{
			$this->parent->manifestClass->postflight($this->route, $this);
		}
		// Append messages
		$msg .= ob_get_contents(); 
		ob_end_clean();
		if ($msg != '') {
			$this->parent->set('extension_message', $msg);
		}
		return $id;
	}

	/**
	 * Custom update method
	 * 
	 * @return	boolean	True on success
	 * @since	11.1
	 */
	function update()
	{
		// Set the overwrite setting
		$this->parent->setOverwrite(true);
		$this->parent->setUpgrade(true);
		// Set the route for the install
		$this->route = 'update';
		// Go to install which handles updates properly
		return $this->install();
	}

	/**
	 * Custom uninstall method
	 * @param	int		$id	The id of the plugin to uninstall

	 * @return	boolean	True on success
	 * @since	11.1
	 */
	public function uninstall($id)
	{
		// Initialise variables.
		$row	= null;
		$retval = true;
		$db		= $this->parent->getDbo();

		// First order of business will be to load the plugin object table from the database.
		// This should give us the necessary information to proceed.
		$row = JTable::getInstance('extension');
		if (!$row->load((int) $id))
		{
			JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_ERRORUNKOWNEXTENSION'));
			return false;
		}

		// Is the plugin we are trying to uninstall a core one?
		// Because that is not a good idea...
		if ($row->protected)
		{
			JError::raiseWarning(100, JText::sprintf('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_WARNCOREPLUGIN', $row->name));
			return false;
		}

		// Get the plugin folder so we can properly build the plugin path
		if (trim($row->folder) == '')
		{
			JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_FOLDER_FIELD_EMPTY'));
			return false;
		}

		// Set the plugin root path
		if (is_dir(JPATH_PLUGINS.DS.$row->folder.DS.$row->element)) {
			// Use 1.6 plugins
			$this->parent->setPath('extension_root', JPATH_PLUGINS.DS.$row->folder.DS.$row->element);
		}
		else {
			// Use Legacy 1.5 plugins
			$this->parent->setPath('extension_root', JPATH_PLUGINS.DS.$row->folder);
		}

		// Because 1.5 plugins don't have their own folders we cannot use the standard method of finding an installation manifest
		// Since 1.6 they do, however until we move to 1.7 and remove 1.6 legacy we still need to use this method.
		// When we get there it'll be something like "$this->parent->findManifest();$manifest = $this->parent->getManifest();"
		$manifestFile = $this->parent->getPath('extension_root').DS.$row->element.'.xml';

		if ( ! file_exists($manifestFile))
		{
			JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_INVALID_NOTFOUND_MANIFEST'));
			return false;
		}

		$xml = JFactory::getXML($manifestFile);

		$this->manifest = $xml;

		// If we cannot load the xml file return null
		if (!$xml)
		{
			JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_LOAD_MANIFEST'));
			return false;
		}

		/*
		 * Check for a valid XML root tag.
		 * @todo: Remove backwards compatability in a future version
		 * Should be 'extension', but for backward compatability we will accept 'install'.
		 */
		if ($xml->getName() != 'install' && $xml->getName() != 'extension')
		{
			JError::raiseWarning(100, JText::_('JLIB_INSTALLER_ERROR_PLG_UNINSTALL_INVALID_MANIFEST'));
			return false;
		}

		// Attempt to load the language file; might have uninstall strings
		$this->parent->setPath('source', JPATH_PLUGINS .'/'.$row->folder.'/'.$row->element);
		$this->loadLanguage(JPATH_PLUGINS .'/'.$row->folder.'/'.$row->element);

		// Installer Trigger Loading

		// If there is an manifest class file, let's load it; we'll copy it later (don't have dest yet)
		$manifestScript = (string)$xml->scriptfile;
		if ($manifestScript)
		{
			$manifestScriptFile = $this->parent->getPath('source').DS.$manifestScript;
			if (is_file($manifestScriptFile)) {
				// Load the file
				include_once $manifestScriptFile;
			}
			// Set the class name
			$classname = 'plg'.$row->folder.$row->element.'InstallerScript';
			if (class_exists($classname))
			{
				// Create a new instance
				$this->parent->manifestClass = new $classname($this);
				// And set this so we can copy it later
				$this->set('manifest_script', $manifestScript);
				// Note: if we don't find the class, don't bother to copy the file
			}
		}

		// Run preflight if possible (since we know we're not an update)
		ob_start();
		ob_implicit_flush(false);
		if ($this->parent->manifestClass && method_exists($this->parent->manifestClass,'preflight'))
		{
			if($this->parent->manifestClass->preflight($this->route, $this) === false)
			{
				// Install failed, rollback changes
				$this->parent->abort(JText::_('JLIB_INSTALLER_ABORT_PLG_INSTALL_CUSTOM_INSTALL_FAILURE'));
				return false;
			}
		}
		// Create msg object; first use here
		$msg = ob_get_contents(); 
		ob_end_clean();

		// Let's run the queries for the module
		// If Joomla 1.5 compatible, with discreet sql files - execute appropriate
		// file for utf-8 support or non-utf-8 support

		// Try for Joomla 1.5 type queries
		// Second argument is the utf compatible version attribute
		$utfresult = $this->parent->parseSQLFiles($xml->{strtolower($this->route)}->sql);
		if ($utfresult === false)
		{
			// Install failed, rollback changes
			$this->parent->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PLG_UNINSTALL_SQL_ERROR', $db->stderr(true)));
			return false;
		}

		// Start Joomla! 1.6
		ob_start();
		ob_implicit_flush(false);
		if ($this->parent->manifestClass && method_exists($this->parent->manifestClass,'uninstall'))
		{
			$this->parent->manifestClass->uninstall($this);
		}
		// Append messages
		$msg = ob_get_contents(); 
		ob_end_clean();


		// Remove the plugin files
		$this->parent->removeFiles($xml->images, -1);
		$this->parent->removeFiles($xml->files, -1);
		JFile::delete($manifestFile);

		// Remove all media and languages as well
		$this->parent->removeFiles($xml->media);
		$this->parent->removeFiles($xml->languages, 1);

		// Remove the schema version
		$query = $db->getQuery(true);
		$query->delete()->from('#__schemas')->where('extension_id = '. $row->extension_id);
		$db->setQuery($query);
		$db->Query();

		// Now we will no longer need the plugin object, so let's delete it
		$row->delete($row->extension_id);
		unset ($row);

		// If the folder is empty, let's delete it
		$files = JFolder::files($this->parent->getPath('extension_root'));

		JFolder::delete($this->parent->getPath('extension_root'));

		if ($msg) {
			$this->parent->set('extension_message',$msg);
		}

		return $retval;
	}

	/**
	 * Custom discover method
	 *
	 * @return array(JExtension) list of extensions available
	 * @since 11.1
	 */
	function discover()
	{
		$results = Array();
		$folder_list = JFolder::folders(JPATH_SITE.DS.'plugins');

		foreach ($folder_list as $folder)
		{
			$file_list = JFolder::files(JPATH_SITE.DS.'plugins'.DS.$folder,'\.xml$');
			foreach ($file_list as $file)
			{
				$manifest_details = JApplicationHelper::parseXMLInstallFile(JPATH_SITE.'/plugins/'.$folder.'/'.$file);
				$file = JFile::stripExt($file);
				// Ignore example plugins
				if ($file == 'example') continue; 
				$extension = JTable::getInstance('extension');
				$extension->set('type', 'plugin');
				$extension->set('client_id', 0);
				$extension->set('element', $file);
				$extension->set('folder', $folder);
				$extension->set('name', $file);
				$extension->set('state', -1);
				$extension->set('manifest_cache', json_encode($manifest_details));
				$results[] = $extension;
			}
			$folder_list = JFolder::folders(JPATH_SITE.DS.'plugins'.DS.$folder);
			foreach ($folder_list as $plugin_folder)
			{
				$file_list = JFolder::files(JPATH_SITE.DS.'plugins'.DS.$folder.DS.$plugin_folder,'\.xml$');
				foreach ($file_list as $file)
				{
					$manifest_details = JApplicationHelper::parseXMLInstallFile(JPATH_SITE.'/plugins/'.$folder.'/'.$plugin_folder.'/'.$file);
					$file = JFile::stripExt($file);
					if ($file == 'example') continue; // ignore example plugins
					$extension = JTable::getInstance('extension');
					$extension->set('type', 'plugin');
					$extension->set('client_id', 0);
					$extension->set('element', $file);
					$extension->set('folder', $folder);
					$extension->set('name', $file);
					$extension->set('state', -1);
					$extension->set('manifest_cache', json_encode($manifest_details));
					$results[] = $extension;
				}
			}
		}
		return $results;
	}

	/**
	 * Custom discover_install method
	 *
	 * @param int $id The id of the extension to install
	 * 
	 * @return mixed
	 * @since 11.1
	 */
	public function discover_install()
	{
		// Plugins use the extensions table as their primary store
		// Similar to modules and templates, rather easy
		// If it's not in the extensions table we just add it
		$client = JApplicationHelper::getClientInfo($this->parent->extension->client_id);
		if (is_dir($client->path . DS . 'plugins'. DS . $this->parent->extension->folder . DS . $this->parent->extension->element)) {
			$manifestPath = $client->path . DS . 'plugins'. DS . $this->parent->extension->folder . DS . $this->parent->extension->element . DS . $this->parent->extension->element . '.xml';
		}
		else {
			$manifestPath = $client->path . DS . 'plugins'. DS . $this->parent->extension->folder . DS . $this->parent->extension->element . '.xml';
		}
		$this->parent->manifest = $this->parent->isManifest($manifestPath);
		$description = (string)$this->parent->manifest->description;
		if ($description) {
			$this->parent->set('message', JText::_($description));
		}
		else {
			$this->parent->set('message', '');
		}
		$this->parent->setPath('manifest', $manifestPath);
		$manifest_details = JApplicationHelper::parseXMLInstallFile($manifestPath);
		$this->parent->extension->manifest_cache = json_encode($manifest_details);
		$this->parent->extension->state = 0;
		$this->parent->extension->name = $manifest_details['name'];
		$this->parent->extension->enabled = 1;
		$this->parent->extension->params = $this->parent->getParams();
		if ($this->parent->extension->store()) {
			return $this->parent->extension->get('extension_id');
		}
		else
		{
			JError::raiseWarning(101, JText::_('JLIB_INSTALLER_ERROR_PLG_DISCOVER_STORE_DETAILS'));
			return false;
		}
	}

	/**
	 * Refreshes the extension table cache
	 * @return  boolean result of operation, true if updated, false on failure
	 * @since	11.1
	 */
	public function refreshManifestCache()
	{
		// Plugins use the extensions table as their primary store
		// Similar to modules and templates, rather easy
		// If it's not in the extensions table we just add it
		$client = JApplicationHelper::getClientInfo($this->parent->extension->client_id);
		$manifestPath = $client->path . '/plugins/'. $this->parent->extension->folder . '/' . $this->parent->extension->element . '/' . $this->parent->extension->element . '.xml';
		$this->parent->manifest = $this->parent->isManifest($manifestPath);
		$this->parent->setPath('manifest', $manifestPath);
		$manifest_details = JApplicationHelper::parseXMLInstallFile($this->parent->getPath('manifest'));
		$this->parent->extension->manifest_cache = json_encode($manifest_details);

		$this->parent->extension->name = $manifest_details['name'];
		if ($this->parent->extension->store()) {
			return true;
		}
		else
		{
			JError::raiseWarning(101, JText::_('JLIB_INSTALLER_ERROR_PLG_REFRESH_MANIFEST_CACHE'));
			return false;
		}
	}
}
Tip: Filter by directory path e.g. /media app.js to search for public/media/app.js.
Tip: Use camelCasing e.g. ProjME to search for ProjectModifiedEvent.java.
Tip: Filter by extension type e.g. /repo .js to search for all .js files in the /repo directory.
Tip: Separate your search with spaces e.g. /ssh pom.xml to search for src/ssh/pom.xml.
Tip: Use ↑ and ↓ arrow keys to navigate and return to view the file.
Tip: You can also navigate files with Ctrl+j (next) and Ctrl+k (previous) and view the file with Ctrl+o.
Tip: You can also navigate files with Alt+j (next) and Alt+k (previous) and view the file with Alt+o.