xref: /plugin/siteexport/action/ajax.php (revision 4b7d84d77ace6e94701379a80214814665f499a4)
1<?php
2/**
3 * Site Export Plugin
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     i-net software <tools@inetsoftware.de>
7 * @author     Gerry Weissbach <gweissbach@inetsoftware.de>
8 */
9
10// must be run within Dokuwiki
11if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../../../').'/');
12if(!defined('DOKU_PLUGIN')) {
13    // Just for sanity
14    require_once(DOKU_INC.'inc/plugin.php');
15    define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
16}
17
18require_once(DOKU_PLUGIN.'action.php');
19require_once(DOKU_INC.'/inc/search.php');
20
21require_once(DOKU_PLUGIN.'siteexport/inc/functions.php');
22require_once(DOKU_PLUGIN.'siteexport/inc/httpproxy.php');
23require_once(DOKU_PLUGIN.'siteexport/inc/filewriter.php');
24require_once(DOKU_PLUGIN.'siteexport/inc/toc.php');
25require_once(DOKU_PLUGIN.'siteexport/inc/javahelp.php');
26
27class action_plugin_siteexport_ajax extends DokuWiki_Action_Plugin
28{
29    /**
30     * New internal variables for better structure
31     */
32    private $filewriter = null;
33    public $functions = null;
34
35    // List of files that have already been checked
36    private $fileChecked = array();
37
38    // Namespace of the page to export
39    private $namespace = '';
40
41    /**
42     * Register Plugin in DW
43     **/
44    function register(&$controller) {
45        $controller->register_hook('AJAX_CALL_UNKNOWN', 'BEFORE', $this, 'ajax_siteexport_provider');
46        $controller->register_hook('ACTION_ACT_PREPROCESS', 'BEFORE', $this, 'siteexport_action');
47    }
48
49    /**
50     * AJAX Provider - check what is going to be done
51     * @param $event
52     * @param $args
53     */
54    function ajax_siteexport_provider(&$event, $args) {
55
56        // If this is not a siteexport call, ignore it.
57        if ( !strstr($event->data, '__siteexport' ) )
58        {
59            return;
60        }
61
62        $this->__init_functions(true);
63
64        switch( $event->data ) {
65            case '__siteexport_getsitelist': $this->ajax_siteexport_getsitelist( $event ); break;
66            case '__siteexport_addsite': $this->ajax_siteexport_addsite( $event ); break;
67            case '__siteexport_generateurl': $this->ajax_siteexport_generateurl( $event ); break;
68        }
69    }
70
71    /**
72     * Export from a URL - action
73     * @param $event
74     */
75    function siteexport_action( &$event ) {
76        global $ID;
77
78        // Check if the 'do' was siteexport
79	    $command = is_array($event->data) ? array_shift(array_keys($event->data)) : $event->data;
80        if ( $command != 'siteexport' ) { return false; }
81		$event->data = act_clean($event->data);
82
83        if ( headers_sent() ) {
84            msg("The siteexport function has to be called prior to any header output.", -1);
85        }
86
87        $this->__init_functions();
88
89        $this->functions->debug->message("========================================", null, 1);
90        $this->functions->debug->message("Starting export from URL call", null, 1);
91        $this->functions->debug->message("----------------------------------------", null, 1);
92
93        $event->preventDefault();
94        $event->stopPropagation();
95
96        // Fake security Token if none given
97        if ( empty( $_REQUEST['sectok'] ) ) {
98            $_REQUEST['sectok'] = getSecurityToken();
99        }
100
101        // The timer will be used to do redirects if needed to prevent timeouts
102        $starttimer = time();
103        $timerdiff = $this->getConf('max_execution_time');
104
105        $data = $this->__get_siteexport_list_and_init_tocs($ID, !empty($_REQUEST['startcounter']));
106
107        if ( $data === false ) {
108            header("HTTP/1.0 401 Unauthorized");
109            print 'Unauthorized';
110            exit;
111        }
112
113        $counter = 0;
114
115        if ( count($data) == 0 && !$this->functions->settings->hasValidCacheFile ) {
116            exit();
117        }
118
119        foreach ( $data as $site ) {
120
121			if ( intval($site['exists']) == 1 || !isset($site['exists']) ) {
122
123	            // Skip over the amount of urls that have been exported already
124	            if ( empty($_REQUEST['startcounter']) || $counter >= intval($_REQUEST['startcounter']) ) {
125	                $status = $this->__siteexport_add_site($site['id']);
126
127			        if ( $status === false ) {
128				        $this->functions->debug->message("----------------------------------------", null, 1);
129				        $this->functions->debug->message("Errors during export from URL call", null, 1);
130				        $this->functions->debug->message("========================================", null, 1);
131						print $this->functions->debug->runtimeErrors;
132        			    exit(0); // We need to stop
133			        }
134	            }
135			}
136
137            $counter ++;
138            if ( time() - $starttimer >= $timerdiff ) {
139                $this->functions->debug->message("Will Redirect", null, 1);
140                $this->handleRuntimeErrorOutput();
141                $this->functions->startRedirctProcess($counter);
142            }
143        }
144
145        $this->functions->debug->message("----------------------------------------", null, 1);
146        $this->functions->debug->message("Finishing export from URL call", null, 1);
147        $this->functions->debug->message("========================================", null, 1);
148
149        $this->cleanCacheFiles();
150
151        $URL = ml($this->functions->settings->origZipFile, array('cache' => 'nocache', 'siteexport' => $this->functions->settings->pattern, 'sectok' => getSecurityToken()), true, '&');
152        $this->functions->debug->message("Redirecting to final file", $URL, 2);
153
154        $this->handleRuntimeErrorOutput();
155        send_redirect($URL);
156        exit(0); // Should not be reached, but anyways
157    }
158
159    private function handleRuntimeErrorOutput()
160    {
161        if ( !empty($this->functions->debug->runtimeErrors) )
162        {
163            $this->filewriter->__moveDataToZip($this->functions->debug->runtimeErrors, '_runtime_error/' . time() . '.html');
164        }
165    }
166
167    public function __init_functions($isAJAX=false)
168    {
169        $this->functions = new siteexport_functions(true, $isAJAX);
170        $this->filewriter = new siteexport_zipfilewriter($this->functions);
171
172        // Check for PDF Capabilities
173        if ( $this->filewriter->canDoPDF() ) {
174            $this->functions->settings->fileType = 'pdf';
175        }
176    }
177
178    /**
179     * Prepares the generated URL for direct download access
180     * Also gives back the parameters for this URL
181     * @param $event init event of the ajax request
182     */
183    function ajax_siteexport_prepareURL_and_POSTData( &$event ) {
184
185        $event->preventDefault();
186        $event->stopPropagation();
187
188        // Retrieve Information for download URL
189        $this->functions->debug->message("Prepared URL and POST from Request:", $_REQUEST, 2);
190        $url = $this->functions->prepare_POSTData($_REQUEST);
191        $combined = $this->functions->urlToPathAndParams($url);
192        list($path, $query) = explode('?', $combined, 2);
193        $return = array($url, $combined, $path, $query);
194
195        $this->functions->debug->message("Prepared URL and POST data:", $return, 2);
196        return $return;
197    }
198
199    /**
200     * Executes a Cron Job Action
201     * @param $event
202     */
203    function ajax_siteexport_cronaction( &$event )
204    {
205        $cronOverwriteExisting = intval($_REQUEST['cronOverwriteExisting']) == 1;
206        list($url, $combined) = $this->ajax_siteexport_prepareURL_and_POSTData($event);
207
208        if ( !$function =& plugin_load('cron', 'siteexport' ) )
209        {
210            $this->functions->debug->message("Tried to do an action with siteexport/cron, but the cron plugin is missing.", null, 4);
211        }
212
213        $status = null;
214        switch( $event->data ) {
215            case '__siteexport_savecron': $status = $function->saveCronDataWithParameters($combined, $cronOverwriteExisting); break;
216            case '__siteexport_deletecron': $status = $function->deleteCronDataWithParameters($combined); break;
217        }
218
219        if ( !empty($status) )
220        {
221            $this->functions->debug->message("Tried to do an action with siteexport/cron, but failed.", $status, 4);
222        }
223    }
224
225    /**
226     * generate direct access URL
227     **/
228    function ajax_siteexport_generateurl( &$event ) {
229
230        list($url, $combined, $path, $POSTData) = $this->ajax_siteexport_prepareURL_and_POSTData($event);
231
232        // WGET Redirects - this is an option for wget only.
233        // Calculate the maximum redirects that we want to allow. A Problem is that we don't know how long it will take to fetch one page
234        // Therefore we assume it takes about 5s for each page - that gives the freedom to have anough time for redirect.
235        $maxRedirectNumber = ceil( ( count($this->__get_siteexport_list($NS, true)) * 5) / $this->getConf('max_execution_time') );
236        $maxRedirect = $maxRedirectNumber > 0 ? '--max-redirect=' . ($maxRedirectNumber+3) . ' ' : '';
237        $maxRedirs = $maxRedirectNumber > 0 ? '--max-redirs ' . ($maxRedirectNumber+3) . ' ' : '';
238
239        $this->functions->debug->message("Generating Direct Download URL", $url, 2);
240
241        // If there was a Runtime Exception
242        if ( !$this->functions->debug->firstRE() ) {
243            $this->functions->debug->message("There have been errors while generating the download URLs.", null, 4);
244            return;
245        }
246
247        echo $url;
248        echo "\n";
249        echo 'wget ' . $maxRedirect . '--output-document=' . array_pop(explode(":", ($this->getConf('zipfilename')))) . ' --post-data="' . $POSTData . '" ' . wl(cleanID($path), null, true) . ' --http-user=USER --http-passwd=PASSWD';
250        echo "\n";
251        echo 'curl -L ' . $maxRedirs . '-o ' . array_pop(explode(":", ($this->getConf('zipfilename')))) . ' -d "' . $POSTData . '" ' . wl(cleanID($path), null, true) . ' --anyauth --user USER:PASSWD';
252        echo "\n";
253
254        $this->functions->debug->message("Checking for Cron parameters: ", $combined, 1);
255        if ( !$functions =& plugin_load('cron', 'siteexport' ) ||
256        !$functions->hasCronJobForParameters($combined) ) {
257            echo "false";
258        } else
259        {
260            echo "true";
261        }
262
263        return;
264    }
265
266    /**
267     * Get List of sites to be exported for AJAX (wrapper)
268     **/
269    function ajax_siteexport_getsitelist( &$event ) {
270
271        $event->preventDefault();
272        $event->stopPropagation();
273
274        $data = $this->__get_siteexport_list_and_init_tocs($_REQUEST['ns']);
275
276        // Important for reconaisance of the session
277
278        if ( $data === false )
279        {
280            $this->functions->debug->runtimeException("No data generated. List of Files is 'false'.");
281            return;
282        }
283
284        if ( empty($data) && !$this->functions->settings->hasValidCacheFile )
285        {
286            $this->functions->debug->runtimeException("Generated list is empty.");
287            return;
288        }
289
290        // If there was a Runtime Exception
291        if ( !$this->functions->debug->firstRE() )
292        {
293            $this->functions->debug->message("There have been errors while generating site list.", null, 4);
294            return;
295        }
296
297        echo "{$this->functions->settings->pattern}\n";
298        echo $this->functions->downloadURL() . "\n";
299        foreach($data as $line ){
300            echo $line['id'] . "\n";
301        }
302
303        return;
304    }
305
306    /**
307     * Add a page to the package (for AJAX calls - Wrapper)
308     **/
309    function ajax_siteexport_addsite( &$event ) {
310
311        $event->preventDefault();
312        $event->stopPropagation();
313
314        $this->functions->debug->message("========================================", null, 1);
315        $this->functions->debug->message("Starting export from AJAX call", null, 1);
316        $this->functions->debug->message("----------------------------------------", null, 1);
317
318        $status = $this->__siteexport_add_site($_REQUEST['site']);
319        if ( $status === false ) {
320	        $this->functions->debug->message("----------------------------------------", null, 1);
321	        $this->functions->debug->message("Errors during export from AJAX call", null, 1);
322	        $this->functions->debug->message("========================================", null, 1);
323        	return;
324        }
325
326        $this->functions->debug->message("----------------------------------------", null, 1);
327        $this->functions->debug->message("Finishing export from AJAX call", null, 1);
328        $this->functions->debug->message("========================================", null, 1);
329
330        // Print the download zip-File
331        $this->cleanCacheFiles();
332
333        // If there was a Runtime Exception
334        if ( !$this->functions->debug->firstRE() ) {
335            $this->functions->debug->message("There have been errors during the export.", null, 4);
336            return;
337        }
338
339        print $this->functions->downloadURL();
340        return;
341    }
342
343    /**
344     * Fetch the list of pages to be exported
345     **/
346    function __get_siteexport_list($NS, $overrideCache=false) {
347        global $conf;
348
349        $NS = $this->namespace = $this->functions->getNamespaceFromID($NS, $PAGE);
350
351        $depth = $this->getConf('depth');
352        $query = '';
353        $doSearch = 'search_allpages';
354
355        switch( intval($_REQUEST['depthType']) ) {
356            case 0:
357                $query = $this->functions->cleanID(str_replace(":", "/", $NS.':'.$PAGE));
358                resolve_pageid($NS, $PAGE, $exists);
359
360                if ( $exists ) {
361                    $data = array( array( 'id' => $PAGE) );
362
363                    $this->functions->debug->message("Checking for Cache", null, 2);
364                    if ( !$overrideCache && $this->filewriter->hasValidCacheFile($_REQUEST, $data) )
365                    {
366                        return array();
367                    }
368
369                    return $data;
370                }
371            case 1:	$depth = 0;
372            break;
373            case 2:	$depth = intval($_REQUEST['depth']);
374            break;
375        }
376
377        $opts = array( 'depth' => $depth, 'skipacl' => $this->getConf('skipacl'), 'query' => $query);
378        $this->functions->debug->message("Options", $opts, 2);
379
380        $data = array();
381        require_once (DOKU_INC.'inc/search.php');
382
383        // Check, which TOC to take
384        if ( !$this->functions->settings->useTOCFile ) {
385            search($data, $conf['datadir'], $doSearch, $opts, $this->namespace);
386        } else {
387            $this->functions->debug->message("Using TOC for data", null, 2);
388
389            $doSearch = 'search_pagename';
390
391            // Create Data of the TOC File should be used instead
392            $opts['query'] = 'toc.txt';
393
394            $RAWdata = array();
395            search($RAWdata, $conf['datadir'], $doSearch, $opts, $this->namespace);
396
397            // There may be more than one toc and all of them have to be merged.
398            $data = array();
399            foreach( $RAWdata as $entry )
400            {
401                $tmpData = p_get_metadata($entry['id'], 'sitetoc siteexportTOC', true);
402
403                if ( is_array($tmpData) )
404                {
405                    $data = array_merge($data, $tmpData);
406                }
407            }
408        }
409
410        $this->functions->debug->message("Checking for Cache", null, 2);
411        if ( !$overrideCache && $this->filewriter->hasValidCacheFile($_REQUEST, $data) )
412        {
413            return array();
414        }
415
416        $this->functions->debug->message("Exporting the following sites: ", $data, 2);
417        return $data;
418    }
419
420    function __get_siteexport_list_and_init_tocs($NS, $isRedirected=false ) {
421
422        // Clean up if not redirected
423        if ( !$isRedirected && !$this->__removeOldZip() ) {
424            $this->functions->debug->runtimeException("Can't remove old files.");
425            return false;
426        }
427
428        $data = $this->__get_siteexport_list($NS, $isRedirected);
429        if ( $isRedirected || empty($data) )
430        {
431            // if we have been redirected, simply return the data
432            return $data;
433        }
434
435        // Create Eclipse Documentation Pages - TOC.xml, Context.xml
436        if ( !empty($_REQUEST['absolutePath']) ) $this->namespace = "";
437//        $this->__removeOldZip( $this->functions->settings->eclipseZipFile );
438
439        if ( !empty($_REQUEST['eclipseDocZip']) )
440        {
441            $toc = new siteexport_toc($this->functions);
442            $this->functions->debug->message("Generating eclipseDocZip", null, 2);
443            $this->filewriter->__moveDataToZip($toc->__getTOCXML($data), 'toc.xml');
444            $this->filewriter->__moveDataToZip($toc->__getContextXML($data), 'context.xml');
445        } else  if ( !empty($_REQUEST['JavaHelpDocZip']) )
446        {
447            $toc = new siteexport_javahelp($this->functions, $this->filewriter);
448            $toc->createTOCFiles($data);
449
450/*            $toc = new siteexport_toc($this->functions);
451            list($tocData, $mapData) = $toc->__getJavaHelpTOCXML($data);
452            $this->functions->debug->message("Generating JavaHelpDocZip", null, 2);
453            $this->filewriter->__moveDataToZip($tocData, 'toc.xml');
454            $this->filewriter->__moveDataToZip($mapData, 'map.xml');
455*/        }
456
457        return $data;
458    }
459
460    /**
461     * Add page with ID to the package
462     **/
463    function __siteexport_add_site( $ID ) {
464        global $conf, $currentID;
465
466        // Which is the current ID?
467        $currentID = $ID;
468
469        $this->functions->debug->message("========================================", null, 2);
470        $this->functions->debug->message("Adding Site: '$ID'", null, 2);
471        $this->functions->debug->message("----------------------------------------", $_REQUEST, 2);
472
473        $request = $this->functions->settings->additionalParameters;
474        unset($request['diPlu']); // This will not be needed for the first request.
475        unset($request['diInv']); // This will not be needed for the first request.
476
477        // say, what to export and Build URL
478        // http://documentation:81/helpdesk/de/hds/getting-started?depthType=0&do=siteexport&ens=helpdesk%3Ade%3Ahds%3Agetting-started&pdfExport=1&renderer=siteexport_siteexportpdf&template=helpdesk
479
480        $do = (intval($_REQUEST['exportbody']) == 1 ? (empty($_REQUEST['renderer']) ? $conf['renderer_xhtml'] : $_REQUEST['renderer'] ) : '' );
481
482        if ($do == 'pdf' && $this->filewriter->canDoPDF() )
483        {
484            $do = 'export_siteexport_pdf';
485            $_REQUEST['origRenderer'] = (empty($_REQUEST['renderer']) ? $conf['renderer_xhtml'] : $_REQUEST['renderer'] );
486        }
487
488        $do = ($do == $conf['renderer_xhtml'] && intval($_REQUEST['exportbody']) != 1) ? '' : 'export_' . $do;
489
490        if ( $do != 'export_' && !empty($do) )
491        {
492            $request['do'] = $do;
493        }
494
495        // set Template
496        if ( !empty( $_REQUEST['template'] ) ) {
497            $request['template'] = $_REQUEST['template'];
498        }
499
500        $this->functions->debug->message("REQUEST for add_site:", $request, 2);
501
502        $ID = $this->functions->cleanID($ID);
503        $url = $this->functions->wl($ID, $request, true, '&');
504
505        // Parse URI PATH and add "html"
506        $fileName = $this->functions->getSiteName($ID, true);
507
508        $this->fileChecked[$url] = $fileName; // 2010-09-03 - One URL to one FileName
509        $this->functions->settings->depth = str_repeat('../', count(explode('/', $fileName))-1);
510
511        // fetch URL and save it in temp file
512        $tmpFile = $this->__getHTTPFile($url);
513        if ( $tmpFile === false ) {
514        	// return $this->functions->debug->message("Creating temporary download file failed for '$url'. See log for more information.");
515        	$this->functions->debug->runtimeException("Creating temporary download file failed for '$url'. See log for more information.");
516        	return false;
517        }
518
519        $dirname = dirname($fileName);
520        // If a Filename was given that does not comply to the original name, use this one!
521		if ( $this->filewriter->canDoPDF() ) {
522
523			$this->functions->debug->message("Will replace old filename '{$fileName}' with {$tmpFile[2]}", null, 1);
524        	$extension = array_pop(explode('.', $fileName));
525			$fileName = $dirname . '/' .  $this->functions->getSiteTitle($ID) . '.' . $extension;
526			$this->fileChecked[$url] = $fileName;
527        } else if ( !empty($tmpFile[1]) && !strstr($DATA[2], $tmpFile[1]) ) {
528
529			$this->functions->debug->message("Will replace old filename '{$fileName}' with {$tmpFile[1]}", null, 1);
530			$fileName = $dirname . '/' . $tmpFile[1];
531			$this->fileChecked[$url] = $fileName;
532        }
533
534        // Add to zip
535        $status = $this->filewriter->__addFileToZip($tmpFile[0], $fileName);
536        @unlink($tmpFile[0]);
537
538        return $status;
539    }
540
541    function __preg_quote($input) {
542	    return preg_quote($input, '/');
543    }
544
545    /**
546     * Download the file via HTTP URL + recurse if this is not an image
547     * The file will be saved as temporary file. The filename is the result.
548     **/
549    function __getHTTPFile($URL, $RECURSE=false, $newAdditionalParameters=null) {
550        global $conf;
551
552        $EXCLUDE = $this->getConf('exclude');
553        if ( !empty($EXCLUDE) ) {
554	        $PATTERN = "/(" . implode('|', explode(' ', preg_quote($EXCLUDE, '/'))) . ")/i";
555
556	        $this->functions->debug->message("Checking for exclude: ", array(
557	        	"pattern" => $PATTERN,
558	        	"file" => $URL,
559	        	"matches" => preg_match($PATTERN, $URL) ? 'match' : 'no match'
560	        ), 2);
561
562			if ( preg_match($PATTERN, $URL) ) { return false; }
563        }
564
565        require_once( DOKU_INC . 'inc/HTTPClient.php');
566
567        $http = new HTTPProxy($this->functions->debug, $this->functions->settings);
568        $http->max_bodysize = $conf['fetchsize'];
569        // $http->user = $_SERVER['PHP_AUTH_USER']; // Must not be set, or the files will be authenticated and have the edit thingies
570        // $http->pass = $_SERVER['PHP_AUTH_PW']; // Must not be set, or the files will be authenticated and have the edit thingies
571
572        // Add additional Params
573        $this->functions->addAdditionalParametersToURL($URL, $newAdditionalParameters);
574
575        $this->functions->debug->message("Fetching URL: '$URL'", null, 2);
576        $getData = $http->get($URL);
577
578        if( $getData === false ) {
579
580        	if ( $this->functions->settings->ignoreNon200 ) {
581	        	return null;
582        	}
583
584            $this->functions->debug->message("Sending request failed with error, HTTP status was '{$http->status}'.", $URL, 4);
585            return false;
586        }
587
588        if( empty($getData) ) {
589            $this->functions->debug->message("No data fetched.", null , 4);
590            return false;
591        }
592
593        $tmpFile = tempnam($this->functions->settings->tmpDir , 'siteexport__');
594        $this->functions->debug->message("Temporary filename", $tmpFile, 1);
595
596        $fp = fopen( $tmpFile, "w");
597        if(!$fp) {
598            $this->functions->debug->message("Can't open temporary File '$tmpFile'.", null , 4);
599            return false;
600        }
601
602        $this->functions->debug->message("Headers received", $http->resp_headers, 2);
603
604        if ( !$RECURSE ) {
605            // Parse URI PATH and add "html"
606            $this->functions->debug->message("========================================", null, 1);
607            $this->functions->debug->message("Starting to recurse file '$URL'", null , 1);
608			$this->functions->debug->message("----------------------------------------", null, 1);
609            $this->__getInternalLinks($getData);
610			$this->functions->debug->message("----------------------------------------", null, 1);
611            $this->functions->debug->message("Finished to recurse file '$URL'", null , 1);
612            $this->functions->debug->message("========================================", null, 1);
613        }
614
615        fwrite($fp,$getData);
616        fclose($fp);
617
618        return array($tmpFile, preg_replace("/.*?filename=\"?(.*?)\"?;?$/", "$1", $http->resp_headers['content-disposition']));
619    }
620
621    /**
622     * Find internal links in the currently downloaded file. This also matches inside CSS files
623     **/
624    function __getInternalLinks(&$DATA) {
625
626        $PATTERN = '(href|src|action)="([^"]*)"';
627        $CALLBACK = array($this, '__fetchAndReplaceLink');
628        $DATA = preg_replace_callback("/$PATTERN/i", $CALLBACK, $DATA);
629
630        $PATTERNCSS = '(url\s*?)\(([^\)]*)\)';
631        $DATA = preg_replace_callback("/$PATTERNCSS/i", $CALLBACK, $DATA);
632    }
633
634    /**
635     * Deep Fetch and replace of links inside the texts matched by __getInternalLinks
636     **/
637    function __fetchAndReplaceLink($DATA) {
638        global $conf, $currentID;
639
640        $noDeepReplace = true;
641        $newAdditionalParameters = $this->functions->settings->additionalParameters;
642        $newDepth = $this->functions->settings->depth;
643        $hadBase = false;
644
645		// Clean data[2], remote ' and "
646		$DATA[2] = preg_replace("/^\s*?['\"]?(.*?)['\"]?\s*?$/", '\1', trim($DATA[2]));
647
648        $this->functions->debug->message("Starting Link Replacement", $DATA, 2);
649
650        // $DATA[2] = urldecode($DATA[2]); // Leads to problems because it does not re-encode the url
651        // External and mailto links
652        if ( preg_match("%^(https?://|mailto:|javascript:|data:)%", $DATA[2]) ) {
653            $this->functions->debug->message("Don't like http, mailto, data or javascript links here", null, 1);
654            return $this->__rebuildLink($DATA, "");
655        }
656        //if ( preg_match("%^(https?://|mailto:|" . DOKU_BASE . "/_export/)%", $DATA[2]) ) { return $this->__rebuildLink($DATA, ""); }
657        // External media - this is deep down in the link, so we have to grep it out
658        if ( preg_match("%media=(https?://.*?$)%", $DATA[2], $matches) ) {
659            $DATA[2] = $matches[1];
660            $this->functions->debug->message("This is an HTTP like somewhere else", $DATA, 1);
661            return $this->__rebuildLink($DATA, "");
662        }
663        // reference only links won't have to be rewritten
664        if ( preg_match("%^#.*?$%", $DATA[2]) ) {
665            $this->functions->debug->message("This is a refercence only", null, 1);
666            return $this->__rebuildLink($DATA, "");
667        }
668
669        // strip all things out
670        // changed Data
671        $PARAMS = @parse_url($DATA[2], PHP_URL_QUERY);
672        $ANCHOR = @parse_url($DATA[2], PHP_URL_FRAGMENT);
673        $DATA[2] = @parse_url($DATA[2], PHP_URL_PATH);
674
675        // 2010-08-25 - fix problem with relative movement in links ( "test/../test2" )
676        $tmpData2 = '';
677        while( $tmpData2 != $DATA[2] ) {
678            $tmpData2 = $DATA[2];
679            $DATA[2] = preg_replace("#/(?!\.\.)[^\/]*?/\.\./#", '/', $DATA[2]);
680        }
681
682        $temp = preg_replace("%^" . DOKU_BASE . "%", "", $DATA[2]);
683        if ( $temp != $DATA[2] ) {
684            $DATA[2] = $temp;
685            $hadBase = true; // 2010-08-23 Check if there has been a rewrite here that will have to be considered later on
686        }
687
688        $this->functions->debug->message("URL before rewriting option for others than 1", array($DATA, $PARAMS, $hadBase), 1);
689
690        // Handle rewrites other than 1 - just for non-lib-files
691        // if ( !preg_match('$^/?lib/$', $DATA[2]) ) {
692        if ( !preg_match('$^(' . DOKU_BASE . ')?lib/$', $DATA[2]) ) {
693		    $this->functions->debug->message("Did not match '$^(" . DOKU_BASE . ")?lib/$' userewrite == ", $conf['userewrite'], 2);
694            if ( $conf['userewrite'] == 2 ) {
695                $DATA[2] = $this->__getInternalRewriteURL($DATA[2]);
696            } elseif ( $conf['userewrite'] == 0 ) {
697                $this->__getParamsAndDataRewritten($DATA, $PARAMS);
698            }
699        } else {
700	    	$this->functions->debug->message("This file must be inside lib ...", null, 2);
701        }
702
703        $this->functions->debug->message("URL before rewriting option", array($DATA, $PARAMS), 2);
704
705        $ORIGDATA2 = $DATA;
706        //        $ORIGDATA2 = $DATA[2]; // 08/10/2010 - this line required a $this->functions->wl which may mess up with the base URL
707        $this->functions->debug->message("OrigDATA is:", $ORIGDATA2, 1);
708
709        // Generate ID
710        $DATA[2] = str_replace('/', ':', $DATA[2]);
711
712        // If Data was empty this must be the same file!;
713        if ( empty( $DATA[2] ) ) {
714            $DATA[2] = $currentID;
715        }
716
717        $ID = $DATA[2];
718        $MEDIAMATCHER = "#(_media(/|:)|media=|_detail(/|:)|_export(/|:)|do=export_)#i"; // 2010-10-23 added "(/|:)" for the ID may not contain slashes anymore
719        $ID = $this->functions->cleanID($DATA[2], null, preg_match($MEDIAMATCHER, $DATA[2]) );
720        //        $ID = $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'media') ); // Export anpassung nun weiter unten
721
722        //        $IDexists = page_exists($ID); // 08/10/2010 - Not needed. This will be done in the next block.
723        //        $this->functions->debug->message("Current ID: '$ID' exists: '" . ($IDexists ? 'true' : 'false') . "' (will be set to 'false' anyway)", null, 1);
724
725        $IDifIDnotExists = $ID; // 08/10/2010 - Save ID - with possible upper cases to preserve them
726        $IDexists = false;
727
728        $this->functions->debug->message("Resolving ID: '$ID'", null, 2);
729        if ( preg_match($MEDIAMATCHER, $DATA[2]) ) {
730            resolve_mediaid(null, $ID, $IDexists);
731
732            $this->functions->debug->message("Current mediaID to filename: '" . mediaFN($ID) . "'", null, 2);
733        } else {
734            resolve_pageid(null, $ID, $IDexists);
735            $this->functions->debug->message("Current ID to filename: '" . wikiFN($ID) . "'", null, 2);
736        }
737
738        $this->functions->debug->message("Current ID after resolvement: '$ID' the ID does exist: '" . ($IDexists ? 'true' : 'false') . "'", null, 2);
739        //        $ORIGDATA2 = @parse_url($this->functions->wl($ORIGDATA2, null, true)); // What was the next 2 line for? It did mess up with links from {{jdoc>}}
740        //        $this->functions->debug->message("OrigData ID after parse:", $ORIGDATA2, 1); // 08/10/2010 - The lines are obsolete when the $ORIGDATA2 = $DATA. $ORIGDATA is only for fallback
741
742        // 08/10/2010 - If the ID does not exist, we may have a problem here with upper cases - they will all be lower by now!
743        if ( !$IDexists ) {
744            $ID = $IDifIDnotExists; // there may have been presevered Upper cases. We will need them!
745        }
746
747        // $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'media') || strstr($DATA[2], 'export') );
748        if ( substr($ID, -1) == ':' || empty($ID) ) $ID .= $conf['start'];
749
750        // Generate Download URL
751        // $PARAMS = trim(str_replace('&amp;', '&', $PARAMS));
752        $PARAMS = trim($PARAMS);
753        $this->functions->removeWikiVariables($PARAMS, false, true);
754
755        $url = $this->functions->wl($ID, null, true, null, null, true, $hadBase) . ( !empty( $ANCHOR) ? '#' . $ANCHOR : '' ) . ( !empty( $PARAMS) ? '?' . $PARAMS : '' );
756        $this->functions->debug->message("URL from ID: '$url'", null, 2);
757
758        // Parse URI PATH and add "html"
759        $uri = @parse_url($url);
760        $DATA[2] = $uri['path'];
761        $DATA['ANCHOR'] = $ANCHOR;
762        $DATA['PARAMS'] = $PARAMS;
763
764        $this->functions->debug->message("DATA after parsing.", $DATA, 2);
765
766        // Second Rewrite for UseRewrite = 2
767        if ( $conf['userewrite'] == 2 ) {
768            $DATA[2] = preg_replace( '$/lib/.*?fetch\.php$', '', $DATA[2]);
769            $DATA[2] = preg_replace( '%(/lib/.*?detail\.php.*$)%', '\1' . '.' . $this->functions->settings->fileType, $DATA[2]);
770
771            if ( preg_match( '%/(lib/.*?detail|doku)\.php%', $DATA[2])) {
772                $noDeepReplace = false;
773                $fileName = $this->functions->getSiteName($ID);
774                $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
775            }
776
777            $this->functions->debug->message("DATA after second rewrite with UseRewrite = 2", array($DATA, $noDeepReplace, $fileName, $newDepth), 1);
778        }
779
780        switch ( array_pop(explode('/', $DATA[2])) ) {
781            // CSS Extra Handling with extra rewrites
782            case 'css.php'	:	// $DATA[2] .=  ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS))) . '.css';
783                $DATA[2] .=  '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS)) . '.css'; // allways put parameters behind
784                // No paramters needed since they are rewritten.
785                $DATA['PARAMS'] = "";
786                $noDeepReplace = false;
787                $fileName = $this->functions->getSiteName($ID);
788                $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
789                $newAdditionalParameters['do'] = 'siteexport';
790
791                $this->functions->debug->message("This is CSS file", array($DATA, $noDeepReplace, $fileName, $newDepth, $newAdditionalParameters), 2);
792
793                break;
794            case 'js.php'	:	// $DATA[2] .= ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS))) . '.js';
795                $DATA[2] .=  '.t.' . $this->functions->cleanID($_REQUEST['template']) . '.js'; // allways put parameters behind
796                // set Template
797                if ( !empty( $_REQUEST['template'] ) ) {
798                    $url .= ( strstr($url, '?') ? '&' : '?' ) . 'template=' . $_REQUEST['template'];
799                }
800                // No paramters needed since they are rewritten.
801                $DATA['PARAMS'] = "";
802                $newAdditionalParameters['do'] = 'siteexport';
803
804                $this->functions->debug->message("This is JS file", array($DATA, $url, $fileName, $newAdditionalParameters), 2);
805
806                break;
807                // Detail Handling with extra Rewrites if Paramaters are available - otherwise this is just the fetch
808            case 'indexer.php' :
809                $this->functions->debug->message("Skipping indexer", null, 2);
810                return "";
811                break;
812            case 'detail.php' :
813                $fileName = $this->functions->getSiteName($ID, true); // 2010-09-03 - rewrite with override enabled
814            case 'doku.php' :
815                if ( $this->functions->settings->addParams ) {
816                    $noDeepReplace = false;
817
818                    if ( empty($fileName) ) {
819                        $fileName = $this->functions->getSiteName($ID); // 2010-09-03 - rewrite with override enabled
820                    }
821
822                    $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
823                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
824
825                    $this->functions->debug->message("This is doku.php or detail.php file with addParams", array($DATA, $fileName, $newDepth, $newAdditionalParameters), 2);
826                    break;
827                }
828
829                $url = str_replace('detail.php', 'fetch.php', $url);
830                $this->functions->debug->message("This is doku.php or detail.php file '$url'", null, 2);
831                // Fetch Handling for media - rewriting everything
832            case 'fetch.php':
833                $this->__getParamsAndDataRewritten($DATA, $PARAMS, 'media');
834
835                $DATA[2] = str_replace('/', ':', $DATA[2]);
836                $ID = $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'media'));
837
838                $urlM = ml($ID, null, true);
839                $uriM = @parse_url($urlM);
840                $DATA[2] = $uriM['path'] . ( !empty( $ANCHOR) ? '#' . $ANCHOR : '' ) . ( !empty( $PARAMS) ? '?' . $PARAMS : '' );
841
842                $DATA['PARAMS'] = "";
843                $newAdditionalParameters = array();
844
845                $this->functions->debug->message("This is fetch.php file", array($DATA, $ID, $PARAMS), 2);
846                break;
847
848                // default Handling for Pages
849            default			:
850                if ( preg_match("%" . DOKU_BASE . "_detail/%", $DATA[2]) ) {
851
852                    // GET ID Param from origdata2
853                    preg_match("#id=(.*?)(&|\")#i", $DATA[0], $backlinkID);
854                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
855
856                    $fileIDPart = isset($backlinkID[1]) && !empty($backlinkID[1]) ? $this->functions->cleanID(urldecode($backlinkID[1])) : 'detail';
857
858                    $DATA[2] .= '/' . $fileIDPart . '.' . $this->functions->settings->fileType; // add namespace and subpage for back button and add filetype
859
860                    $noDeepReplace = false;
861                    $fileName = $this->functions->shortenName($DATA[2]);
862                    $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
863                    $url .= ( strstr($url, '?') ? '&' : '?' ) . 'id=' . $fileIDPart; // add id-part to URL for backlinks
864
865                    $DATA['PARAMS'] = "";
866
867                    $this->functions->debug->message("This is something with '_detail' file", array($DATA, $backlinkID, $newDepth, $url), 2);
868                } else if ( preg_match("%" . DOKU_BASE . "_export/(.*?)/%", $DATA[2], $fileType) ) {
869
870                    // Fixes multiple codeblocks in one file
871                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
872
873                    // add the Params no matter what they are. This is export. We don't mess with other files
874                    // adding the "/" fixes the usage of multiple codeblocks in the same namespace
875                    $DATA[2] .= (empty( $PARAMS ) ? '' : '/' . $PARAMS) . '.'. $fileType[1];
876
877                    $DATA['PARAMS'] = "";
878                    $this->functions->debug->message("This is something with '_export' file", $DATA, 2);
879
880                } else if ( $IDexists ) { // 08/10/2010 - was page_exists($ID) - but this should do as well.
881                    // If this is a page ... skip it!
882                    $DATA[2] .= ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS)))  . '.' . $this->functions->settings->fileType;
883
884                    // 2012-06-15 originally has an absolute path ... we might need a relative one if not in our namespace
885                    $this->functions->debug->message("OK, this is to be absolute: " . (empty($_REQUEST['absolutePath'])?'false':'true'), null, 1);
886                    if ( empty($_REQUEST['absolutePath']) )
887                    {
888                        $DATA[2] = $this->functions->getRelativeURL($DATA[2], $currentID);
889                    }
890
891                    $DATA[2] = $this->functions->shortenName($DATA[2]);
892
893                    // If Parameters are to be included in the filename - they must not be added twice
894                    if ( $this->functions->settings->addParams ) $DATA['PARAMS'] = "";
895
896                    $this->functions->debug->message("This page really exists", $DATA, 1);
897
898                    return $this->__rebuildLink($DATA);
899                } else {
900                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
901                }
902
903                unset($newAdditionalParameters['diPlu']);
904        }
905
906
907        $this->functions->debug->message("DATA after SWITCH CASE decision", array($DATA, $noDeepReplace, $fileName, $newDepth), 1);
908
909        if ( $this->filewriter->canDoPDF() ) {
910            $this->functions->addAdditionalParametersToURL($url, $newAdditionalParameters);
911            $DATA[2] = $url;
912            unset($DATA['PARAMS']);
913            $url = $this->__rebuildLink($DATA, '');
914
915            $this->functions->debug->message("Creating PDF with URL '$url'", null, 2);
916
917            return $url;
918        }
919
920        // Create Name to save the file at
921        $DATA[2] = str_replace(':', '_', $DATA[2]);
922        $DATA[2] = $this->functions->shortenName($DATA[2]);
923
924
925        // File already loaded?
926        // 2010-10-23 - changes in_array from DATA[2] to $url - to check real URLs, the DATA[2] file will be checked with fileExistsInZip
927        if ( in_array($url, array_keys($this->fileChecked)) ) {
928            $DATA[2] = $this->fileChecked[$url];
929            $this->functions->debug->message("File has been checked before.", array($DATA, $url), 2);
930            return $this->__rebuildLink($DATA);
931        }
932
933        // 2010-09-03 - second check if the file is in the ZIP already.
934        if ( $this->filewriter->fileExistsInZip($DATA[2]) ) {
935            $this->functions->debug->message("File with DATA exists in ZIP.", $DATA, 3);
936            return $this->__rebuildLink($DATA);
937        }
938
939        // 2010-10-23 - What if this is a fetch.php? than we produced an error.
940        //        $this->fileChecked[] = $DATA[2];
941        $this->fileChecked[$url] = $DATA[2]; // 2010-09-03 - One URL to one FileName
942
943        // get tempFile and save it
944        $origDepth = $this->functions->settings->depth;
945        $this->functions->settings->depth = $newDepth;
946
947        $tmpID = $currentID;
948        $tmpFile === false;
949
950        $this->functions->debug->message("Going to get the file", array($url, $noDeepReplace, $newAdditionalParameters), 2);
951        $tmpFile = $this->__getHTTPFile($url, $noDeepReplace, $newAdditionalParameters);
952        $this->functions->debug->message("This is the getHTTPFile result", $tmpFile, 2);
953
954        $currentID = $tmpID;
955        $this->functions->settings->depth = $origDepth; // 2010-09-03 - Reset depth at the very end
956
957        if ( $tmpFile === false ) {
958            // Keep an potentially extra link intact
959
960            $this->functions->debug->message("The fetched file '$url' is 'false'", null, 3);
961            if ( $IDexists === false ) {
962                $this->functions->debug->message("The file does not exist, fallback to ORIGDATA", $ORIGDATA2, 2);
963                $DATA[2] = $this->functions->shortenName($ORIGDATA2[2]); // get Origdata Path
964            }
965
966            $this->fileChecked[$url] = $DATA[2]; // 2010-09-03 - One URL to one FileName
967            $link = $this->__rebuildLink($DATA);
968            $this->functions->debug->message("Final Link after empty file from '$url'", null, 2);
969
970            return $link;
971        }
972
973        $this->functions->debug->message("The fetched file looks good.", $tmpFile, 1);
974        $dirname = dirname($DATA[2]);
975
976        // If a Filename was given that does not comply to the original name, us this one!
977        if ( !empty($tmpFile[1]) && !strstr($DATA[2], $tmpFile[1]) ) {
978			$DATA[2] = $dirname . '/' . $tmpFile[1];
979        }
980
981        // Add to zip
982        $this->fileChecked[$url] = $DATA[2]; // 2010-09-03 - One URL to one FileName
983
984        $status = $this->filewriter->__addFileToZip($tmpFile[0], $DATA[2]);
985        @unlink($tmpFile[0]);
986
987        $newURL = $this->__rebuildLink($DATA);
988        $this->functions->debug->message("Returning final Link to document: '$newURL'", null, 2);
989
990        return $newURL;
991    }
992
993    /**
994     * build the new link to be put in place for the donwloaded site
995     **/
996    function __rebuildLink($DATA, $DEPTH = null) {
997
998        // depth is set, skip this one
999        if ( is_null( $DEPTH ) ) $DEPTH = $this->functions->settings->depth;
1000        $DATA[2] .= ( !empty( $DATA['PARAMS']) ? '?' . $DATA['PARAMS'] : '' ) . ( !empty( $DATA['ANCHOR'] ) ? '#' . $DATA['ANCHOR'] : '' );
1001
1002        $newURL = $DATA[1] == 'url' ? $DATA[1] . '(' . $DEPTH . $DATA[2] . ')' : $DATA[1] . '="' . $DEPTH . $DATA[2] . '"';
1003        $this->functions->debug->message("Re-created URL: '$newURL'", null, 2);
1004
1005        return $newURL;
1006    }
1007
1008
1009    /**
1010     * remove an old zip file
1011     **/
1012    function __removeOldZip( $FILENAMEID=null, $checkForMore=true ) {
1013        global $INFO;
1014        global $conf;
1015
1016        $returnValue = true;
1017
1018        if ( empty($FILENAMEID) ) {
1019            $FILENAMEID = $this->functions->settings->origZipFile;
1020        }
1021
1022        if ( !file_exists(mediaFN($FILENAMEID)) ) {
1023            $returnValue = true;
1024        } else {
1025
1026            require_once( DOKU_INC . 'inc/media.php');
1027            if ( !media_delete($FILENAMEID, $INFO['perm']) ) {
1028                $returnValue = false;
1029            }
1030        }
1031
1032        if ( $checkForMore ) {
1033            // Try to remove more files.
1034            $ns = getNS($FILENAMEID);
1035            $fn = $this->functions->getSpecialExportFileName(noNS($FILENAMEID), '.+');
1036
1037            $data = array();
1038            search($data, $conf['mediadir'], 'search_media', array('pattern' => "/$fn$/i"), $ns);
1039
1040            if ( count($data > 0) ) {
1041
1042                // 30 Minuten Cache Zeit
1043                $cache = $this->functions->settings->cachetime;
1044                foreach ( $data as $media ) {
1045
1046                    //decide if has to be deleted needed:
1047                    if( $media['mtime'] < time()-$cache) {
1048                        $this->__removeOldZip($media['id'], false);
1049                    }
1050                }
1051            }
1052
1053        }
1054
1055        return $returnValue;
1056    }
1057
1058    /**
1059     * if confrewrite is set to internal rewrite, use this function - taken from a DW renderer
1060     **/
1061    function __getInternalRewriteURL($url) {
1062        global $conf;
1063
1064        //construct page id from request URI
1065        if( $conf['userewrite'] != 2) { return $url; }
1066
1067        //get the script URL
1068        if($conf['basedir']) {
1069            $relpath = '';
1070            $script = $conf['basedir'].$relpath.basename($_SERVER['SCRIPT_FILENAME']);
1071        } elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
1072            $script = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
1073            $_SERVER['SCRIPT_FILENAME']);
1074            $script = '/'.$script;
1075        }else{
1076            $script = $_SERVER['SCRIPT_NAME'];
1077        }
1078
1079        //clean script and request (fixes a windows problem)
1080        $script  = preg_replace('/\/\/+/','/',$script);
1081        $request = preg_replace('/\/\/+/','/',$url);
1082
1083        //remove script URL and Querystring to gain the id
1084        if(preg_match('/^'.preg_quote($script,'/').'(.*)/',$request, $match)){
1085            $id = preg_replace ('/\?.*/','',$match[1]);
1086        }
1087        $id = urldecode($id);
1088        //strip leading slashes
1089        $id = preg_replace('!^/+!','',$id);
1090
1091        return $id;
1092    }
1093
1094    /**
1095     * rewrite parameter calls
1096     **/
1097    function __getParamsAndDataRewritten(&$DATA, &$PARAMS, $IDKEY='id') {
1098
1099        $PARRAY = explode('&', str_replace('&amp;', '&', $PARAMS) );
1100        $PARAMS = "";
1101
1102        foreach ( $PARRAY as $item ) {
1103            list($key, $value) = explode('=', $item, 2);
1104            if ( empty($key) || empty($value) )
1105            continue;
1106
1107            if ( strtolower(trim($key)) == $IDKEY ) {
1108                $DATA[2] = preg_replace("%^" . DOKU_BASE . "%", "", $value);
1109                continue;
1110            }
1111
1112            if ( !empty( $PARAMS) ) {
1113                $PARAMS .= '&';
1114            }
1115
1116            $PARAMS .= "$key=$value";
1117        }
1118    }
1119
1120    /**
1121     * rewrite detail.php calls
1122     **/
1123    function __rebuildDataForNormalFiles(&$DATA, &$PARAMS) {
1124        $PARTS = explode('.', $DATA[2]);
1125        if ( count($PARTS) > 1 ) {
1126            $EXT = '.' . array_pop($PARTS);
1127        }
1128
1129        $PARAMS = preg_replace("/(=|\?|&amp;)/", ".", $PARAMS);
1130        $DATA[2] = implode('.', $PARTS) . ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID($PARAMS)) . ( $EXT == '.php' ? '.' . $this->functions->settings->fileType : $EXT );
1131        $DATA[2] = preg_replace("/\.+/", ".", $DATA[2]);
1132    }
1133
1134
1135
1136
1137    /*
1138     * Clean JS and CSS cache files
1139     */
1140    function cleanCacheFiles() {
1141
1142        $_SERVER['HTTP_HOST'] = preg_replace("/:?\d+$/", '', $_SERVER['HTTP_HOST']);
1143        $cache = getCacheName('scripts'.$_SERVER['HTTP_HOST'].'-siteexport-js-'.$_SERVER['SERVER_PORT'],'.js');
1144        $this->unlinkIfExists($cache);
1145
1146        $tpl = trim(preg_replace('/[^\w-]+/','',$_REQUEST['template']));
1147        if($tpl)
1148        {
1149            $tplinc = DOKU_INC.'lib/tpl/'.$tpl.'/';
1150            $tpldir = DOKU_BASE.'lib/tpl/'.$tpl.'/';
1151        } else {
1152            $tplinc = DOKU_TPLINC;
1153            $tpldir = DOKU_TPL;
1154        }
1155
1156        // The generated script depends on some dynamic options
1157        $cache = getCacheName('styles'.$_SERVER['HTTP_HOST'].'-siteexport-js-'.$_SERVER['SERVER_PORT'].DOKU_BASE.$tplinc.$style,'.css');
1158        $this->unlinkIfExists($cache);
1159    }
1160
1161    function unlinkIfExists($cache) {
1162        if ( file_exists($cache) ) {
1163            @unlink($cache);
1164            if(function_exists('gzopen')) @unlink("$cache.gz");
1165        }
1166    }
1167
1168    // Private unset function
1169    private function clear(&$variable)
1170    {
1171        if ( isset($variable) )
1172        {
1173            unset($variable);
1174        }
1175    }
1176}