xref: /plugin/siteexport/action/ajax.php (revision b38f2b905a135831b443fdb45473dbeb69b41b38)
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    public function register(Doku_Event_Handler $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            case '__siteexport_aggregate': $this->ajax_siteexport_aggregate( $event ); break;
69        }
70    }
71
72    /**
73     * Export from a URL - action
74     * @param $event
75     */
76    function siteexport_action( &$event ) {
77        global $ID;
78
79        // Check if the 'do' was siteexport
80	    $command = is_array($event->data) ? array_shift(array_keys($event->data)) : $event->data;
81        if ( $command != 'siteexport' ) { return false; }
82		$event->data = act_clean($event->data);
83
84        if ( headers_sent() ) {
85            msg("The siteexport function has to be called prior to any header output.", -1);
86        }
87
88        $this->__init_functions();
89
90        $this->functions->debug->message("========================================", null, 1);
91        $this->functions->debug->message("Starting export from URL call", null, 1);
92        $this->functions->debug->message("----------------------------------------", null, 1);
93
94        $event->preventDefault();
95        $event->stopPropagation();
96
97        // Fake security Token if none given
98        if ( empty( $_REQUEST['sectok'] ) ) {
99            $_REQUEST['sectok'] = getSecurityToken();
100        }
101
102        // The timer will be used to do redirects if needed to prevent timeouts
103        $starttimer = time();
104        $timerdiff = $this->getConf('max_execution_time');
105
106        $data = $this->__get_siteexport_list_and_init_tocs($ID, !empty($_REQUEST['startcounter']));
107
108        if ( $data === false ) {
109            header("HTTP/1.0 401 Unauthorized");
110            print 'Unauthorized';
111            exit;
112        }
113
114        $counter = 0;
115
116        if ( count($data) == 0 && !$this->functions->settings->hasValidCacheFile ) {
117            exit( "No Data to export" );
118        }
119
120        foreach ( $data as $site ) {
121
122			if ( intval($site['exists']) == 1 || !isset($site['exists']) ) {
123
124	            // Skip over the amount of urls that have been exported already
125	            if ( empty($_REQUEST['startcounter']) || $counter >= intval($_REQUEST['startcounter']) ) {
126	                $status = $this->__siteexport_add_site($site['id']);
127
128			        if ( $status === false ) {
129				        $this->functions->debug->message("----------------------------------------", null, 1);
130				        $this->functions->debug->message("Errors during export from URL call", null, 1);
131				        $this->functions->debug->message("========================================", null, 1);
132						print $this->functions->debug->runtimeErrors;
133        			    exit(0); // We need to stop
134			        }
135	            }
136			}
137
138            $counter ++;
139            if ( time() - $starttimer >= $timerdiff ) {
140                $this->functions->debug->message("Will Redirect", null, 1);
141                $this->handleRuntimeErrorOutput();
142                $this->functions->startRedirctProcess($counter);
143            }
144        }
145
146        $this->functions->debug->message("----------------------------------------", null, 1);
147        $this->functions->debug->message("Finishing export from URL call", null, 1);
148        $this->functions->debug->message("========================================", null, 1);
149
150        $this->cleanCacheFiles();
151
152        $URL = ml($this->functions->settings->origZipFile, array('cache' => 'nocache', 'siteexport' => $this->functions->settings->pattern, 'sectok' => getSecurityToken()), true, '&');
153        $this->functions->debug->message("Redirecting to final file", $URL, 2);
154
155        $this->handleRuntimeErrorOutput();
156        send_redirect($URL);
157        exit(0); // Should not be reached, but anyways
158    }
159
160    private function handleRuntimeErrorOutput()
161    {
162        if ( !empty($this->functions->debug->runtimeErrors) )
163        {
164            $this->filewriter->__moveDataToZip($this->functions->debug->runtimeErrors, '_runtime_error/' . time() . '.html');
165        }
166    }
167
168    public function __init_functions($isAJAX=false)
169    {
170        global $conf;
171
172        $conf['useslash'] = 1;
173
174        $this->functions = new siteexport_functions(true, $isAJAX);
175        $this->filewriter = new siteexport_zipfilewriter($this->functions);
176
177        // Check for PDF Capabilities
178        if ( $this->filewriter->canDoPDF() ) {
179            $this->functions->settings->fileType = 'pdf';
180        }
181    }
182
183    /**
184     * Prepares the generated URL for direct download access
185     * Also gives back the parameters for this URL
186     * @param $event init event of the ajax request
187     */
188    function ajax_siteexport_prepareURL_and_POSTData( &$event ) {
189
190        $event->preventDefault();
191        $event->stopPropagation();
192
193        // Retrieve Information for download URL
194        $this->functions->debug->message("Prepared URL and POST from Request:", $_REQUEST, 2);
195        $url = $this->functions->prepare_POSTData($_REQUEST);
196        $combined = $this->functions->urlToPathAndParams($url);
197        list($path, $query) = explode('?', $combined, 2);
198        $return = array($url, $combined, $path, $query);
199
200        $this->functions->debug->message("Prepared URL and POST data:", $return, 2);
201        return $return;
202    }
203
204    /**
205     * Executes a Cron Job Action
206     * @param $event
207     */
208    function ajax_siteexport_cronaction( &$event )
209    {
210        $cronOverwriteExisting = intval($_REQUEST['cronOverwriteExisting']) == 1;
211        list($url, $combined) = $this->ajax_siteexport_prepareURL_and_POSTData($event);
212
213        if ( !$function =& plugin_load('cron', 'siteexport' ) )
214        {
215            $this->functions->debug->message("Tried to do an action with siteexport/cron, but the cron plugin is missing.", null, 4);
216        }
217
218        $status = null;
219        switch( $event->data ) {
220            case '__siteexport_savecron': $status = $function->saveCronDataWithParameters($combined, $cronOverwriteExisting); break;
221            case '__siteexport_deletecron': $status = $function->deleteCronDataWithParameters($combined); break;
222        }
223
224        if ( !empty($status) )
225        {
226            $this->functions->debug->message("Tried to do an action with siteexport/cron, but failed.", $status, 4);
227        }
228    }
229
230    /**
231     * generate direct access URL
232     **/
233    function ajax_siteexport_generateurl( &$event ) {
234
235        list($url, $combined, $path, $POSTData) = $this->ajax_siteexport_prepareURL_and_POSTData($event);
236
237        // WGET Redirects - this is an option for wget only.
238        // 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
239        // Therefore we assume it takes about 5s for each page - that gives the freedom to have anough time for redirect.
240        $maxRedirectNumber = ceil( ( count($this->__get_siteexport_list($NS, true)) * 5) / $this->getConf('max_execution_time') );
241        $maxRedirect = $maxRedirectNumber > 0 ? '--max-redirect=' . ($maxRedirectNumber+3) . ' ' : '';
242        $maxRedirs = $maxRedirectNumber > 0 ? '--max-redirs ' . ($maxRedirectNumber+3) . ' ' : '';
243
244        $this->functions->debug->message("Generating Direct Download URL", $url, 2);
245
246        // If there was a Runtime Exception
247        if ( !$this->functions->debug->firstRE() ) {
248            $this->functions->debug->message("There have been errors while generating the download URLs.", null, 4);
249            return;
250        }
251
252        echo $url;
253        echo "\n";
254        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';
255        echo "\n";
256        echo 'curl -L ' . $maxRedirs . '-o ' . array_pop(explode(":", ($this->getConf('zipfilename')))) . ' -d "' . $POSTData . '" ' . wl(cleanID($path), null, true) . ' --anyauth --user USER:PASSWD';
257        echo "\n";
258
259        $this->functions->debug->message("Checking for Cron parameters: ", $combined, 1);
260        if ( !$functions =& plugin_load('cron', 'siteexport' ) ||
261        !$functions->hasCronJobForParameters($combined) ) {
262            echo "false";
263        } else
264        {
265            echo "true";
266        }
267
268        return;
269    }
270
271    /**
272     * Get List of sites to be exported for AJAX (wrapper)
273     **/
274    function ajax_siteexport_getsitelist( &$event ) {
275
276        $event->preventDefault();
277        $event->stopPropagation();
278
279        $data = $this->__get_siteexport_list_and_init_tocs($_REQUEST['ns']);
280
281        // Important for reconaisance of the session
282
283        if ( $data === false )
284        {
285            $this->functions->debug->runtimeException("No data generated. List of Files is 'false'.");
286            return;
287        }
288
289        if ( empty($data) && !$this->functions->settings->hasValidCacheFile )
290        {
291            $this->functions->debug->runtimeException("Generated list is empty.");
292            return;
293        }
294
295        // If there was a Runtime Exception
296        if ( !$this->functions->debug->firstRE() )
297        {
298            $this->functions->debug->message("There have been errors while generating site list.", null, 4);
299            return;
300        }
301
302        echo "{$this->functions->settings->pattern}\n";
303        echo $this->functions->downloadURL() . "\n";
304        foreach($data as $line ){
305            echo $line['id'] . "\n";
306        }
307
308        return;
309    }
310
311    function ajax_siteexport_aggregate( &$event ) {
312
313        // Quick preparations for one page only
314        if ( $this->filewriter->hasValidCacheFile($_REQUEST, $data) ) {
315            $this->functions->debug->message("Had a valid cache file and will use it.", null, 2);
316            print $this->functions->downloadURL();
317
318            $event->preventDefault();
319            $event->stopPropagation();
320        } else {
321            // Then go for it!
322            $this->functions->debug->message("Will create a new cache thing.", null, 2);
323            $this->ajax_siteexport_addsite( $event );
324        }
325
326    }
327
328    /**
329     * Add a page to the package (for AJAX calls - Wrapper)
330     **/
331    function ajax_siteexport_addsite( &$event ) {
332
333        $event->preventDefault();
334        $event->stopPropagation();
335
336        $this->functions->debug->message("========================================", null, 1);
337        $this->functions->debug->message("Starting export from AJAX call", null, 1);
338        $this->functions->debug->message("----------------------------------------", null, 1);
339
340        $status = $this->__siteexport_add_site($_REQUEST['site']);
341        if ( $status === false ) {
342	        $this->functions->debug->message("----------------------------------------", null, 1);
343	        $this->functions->debug->message("Errors during export from AJAX call", null, 1);
344	        $this->functions->debug->message("========================================", null, 1);
345        	return;
346        }
347
348        $this->functions->debug->message("----------------------------------------", null, 1);
349        $this->functions->debug->message("Finishing export from AJAX call", null, 1);
350        $this->functions->debug->message("========================================", null, 1);
351
352        // Print the download zip-File
353        $this->cleanCacheFiles();
354
355        // If there was a Runtime Exception
356        if ( !$this->functions->debug->firstRE() ) {
357            $this->functions->debug->message("There have been errors during the export.", null, 4);
358            return;
359        }
360
361        print $this->functions->downloadURL();
362        return;
363    }
364
365    /**
366     * Fetch the list of pages to be exported
367     **/
368    function __get_siteexport_list($NS, $overrideCache=false) {
369        global $conf;
370
371        $NS = $this->namespace = $this->functions->getNamespaceFromID($NS, $PAGE);
372
373        $depth = $this->getConf('depth');
374        $query = '';
375        $doSearch = 'search_allpages';
376
377        switch( intval($_REQUEST['depthType']) ) {
378            case 0:
379                $query = $this->functions->cleanID(str_replace(":", "/", $NS.':'.$PAGE));
380                resolve_pageid($NS, $PAGE, $exists);
381
382                if ( $exists ) {
383                    $data = array( array( 'id' => $PAGE) );
384
385                    $this->functions->debug->message("Checking for Cache", null, 2);
386                    if ( !$overrideCache && $this->filewriter->hasValidCacheFile($_REQUEST, $data) )
387                    {
388                        return array();
389                    }
390
391                    return $data;
392                }
393            case 1:	$depth = 0;
394            break;
395            case 2:	$depth = intval($_REQUEST['depth']);
396            break;
397        }
398
399        $opts = array( 'depth' => $depth, 'skipacl' => $this->getConf('skipacl'), 'query' => $query);
400        $this->functions->debug->message("Options", $opts, 2);
401
402        $data = array();
403        require_once (DOKU_INC.'inc/search.php');
404
405        // Check, which TOC to take
406        if ( !$this->functions->settings->useTOCFile ) {
407            search($data, $conf['datadir'], $doSearch, $opts, $this->namespace);
408        } else {
409            $this->functions->debug->message("Using TOC for data", null, 2);
410
411            $doSearch = 'search_pagename';
412
413            // Create Data of the TOC File should be used instead
414            $opts['query'] = 'toc.txt';
415
416            $RAWdata = array();
417            search($RAWdata, $conf['datadir'], $doSearch, $opts, $this->namespace);
418
419            // There may be more than one toc and all of them have to be merged.
420            $data = array();
421            foreach( $RAWdata as $entry )
422            {
423                $tmpData = p_get_metadata($entry['id'], 'sitetoc siteexportTOC', true);
424
425                if ( is_array($tmpData) )
426                {
427                    $data = array_merge($data, $tmpData);
428                }
429            }
430        }
431
432        $this->functions->debug->message("Checking for Cache", null, 2);
433        if ( !$overrideCache && $this->filewriter->hasValidCacheFile($_REQUEST, $data) )
434        {
435            return array();
436        }
437
438        $this->functions->debug->message("Exporting the following sites: ", $data, 2);
439        return $data;
440    }
441
442    function __get_siteexport_list_and_init_tocs($NS, $isRedirected=false ) {
443
444        // Clean up if not redirected
445        if ( !$isRedirected && !$this->__removeOldZip() ) {
446            $this->functions->debug->runtimeException("Can't remove old files.");
447            return false;
448        }
449
450        $data = $this->__get_siteexport_list($NS, $isRedirected);
451        if ( $isRedirected || empty($data) )
452        {
453            // if we have been redirected, simply return the data
454            return $data;
455        }
456
457        // Create Eclipse Documentation Pages - TOC.xml, Context.xml
458        if ( !empty($_REQUEST['absolutePath']) ) $this->namespace = "";
459//        $this->__removeOldZip( $this->functions->settings->eclipseZipFile );
460
461        if ( !empty($_REQUEST['eclipseDocZip']) )
462        {
463            $toc = new siteexport_toc($this->functions);
464            $this->functions->debug->message("Generating eclipseDocZip", null, 2);
465            $this->filewriter->__moveDataToZip($toc->__getTOCXML($data), 'toc.xml');
466            $this->filewriter->__moveDataToZip($toc->__getContextXML($data), 'context.xml');
467        } else  if ( !empty($_REQUEST['JavaHelpDocZip']) )
468        {
469            $toc = new siteexport_javahelp($this->functions, $this->filewriter);
470            $toc->createTOCFiles($data);
471
472/*            $toc = new siteexport_toc($this->functions);
473            list($tocData, $mapData) = $toc->__getJavaHelpTOCXML($data);
474            $this->functions->debug->message("Generating JavaHelpDocZip", null, 2);
475            $this->filewriter->__moveDataToZip($tocData, 'toc.xml');
476            $this->filewriter->__moveDataToZip($mapData, 'map.xml');
477*/        }
478
479        return $data;
480    }
481
482    /**
483     * Add page with ID to the package
484     **/
485    function __siteexport_add_site( $ID ) {
486        global $conf, $currentID, $currentParent;
487
488        // Which is the current ID?
489        $currentID = $ID;
490
491        $this->functions->debug->message("========================================", null, 2);
492        $this->functions->debug->message("Adding Site: '$ID'", null, 2);
493        $this->functions->debug->message("----------------------------------------", $_REQUEST, 2);
494
495        $request = $this->functions->settings->additionalParameters;
496        unset($request['diPlu']); // This will not be needed for the first request.
497        unset($request['diInv']); // This will not be needed for the first request.
498
499        // say, what to export and Build URL
500        // 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
501
502        $do = (intval($_REQUEST['exportbody']) == 1 ? (empty($_REQUEST['renderer']) ? $conf['renderer_xhtml'] : $_REQUEST['renderer'] ) : '' );
503
504        if ($do == 'pdf' && $this->filewriter->canDoPDF() )
505        {
506            $do = 'export_siteexport_pdf';
507            $_REQUEST['origRenderer'] = (empty($_REQUEST['renderer']) ? $conf['renderer_xhtml'] : $_REQUEST['renderer'] );
508        } else if ( $_REQUEST['renderer'] == 'dw2pdf' ) {
509            $do = 'pdf';
510        }
511
512        $do = ($do == $conf['renderer_xhtml'] && intval($_REQUEST['exportbody']) != 1) ? '' : 'export_' . $do;
513
514        if ( $do != 'export_' && !empty($do) )
515        {
516            $request['do'] = $do;
517        }
518
519        // set Template
520        if ( !empty( $_REQUEST['template'] ) ) {
521            $request['template'] = $_REQUEST['template'];
522        }
523
524        $this->functions->debug->message("REQUEST for add_site:", $request, 2);
525
526        $ID = $this->functions->cleanID($ID);
527        $url = $this->functions->wl($ID, $request, true, '&');
528
529        // Parse URI PATH and add "html"
530        $currentParent = $fileName = $this->functions->getSiteName($ID, true);
531        $this->functions->debug->message("Filename could be:", $fileName, 2);
532
533        $this->fileChecked[$url] = $fileName; // 2010-09-03 - One URL to one FileName
534        $this->functions->settings->depth = str_repeat('../', count(explode('/', $fileName))-1);
535
536        // fetch URL and save it in temp file
537        $tmpFile = $this->__getHTTPFile($url);
538        if ( $tmpFile === false ) {
539        	// return $this->functions->debug->message("Creating temporary download file failed for '$url'. See log for more information.");
540        	$this->functions->debug->runtimeException("Creating temporary download file failed for '$url'. See log for more information.");
541        	return false;
542        }
543
544        $dirname = dirname($fileName);
545        // If a Filename was given that does not comply to the original name, use this one!
546		if ( $this->filewriter->canDoPDF() ) {
547
548			$this->functions->debug->message("Will replace old filename '{$fileName}' with {$ID}", null, 1);
549			$extension = explode('.', $fileName);
550        	$extension = array_pop($extension);
551
552        	// 2014-04-29 added cleanID to ensure that links are generated consistently when using [[this>...]] or another local, relativ linking
553			$fileName = $dirname . '/' . $this->functions->cleanID($this->functions->getSiteTitle($ID)) . '.' . $extension;
554        } else if ( !empty($tmpFile[1]) && !strstr($DATA[2], $tmpFile[1]) ) {
555
556			$this->functions->debug->message("Will replace old filename '{$fileName}' with {$dirname}/{$tmpFile[1]}", null, 1);
557			$fileName = $dirname . '/' . $tmpFile[1];
558        }
559
560        // Add to zip
561		$this->fileChecked[$url] = $fileName;
562        $status = $this->filewriter->__addFileToZip($tmpFile[0], $fileName);
563        @unlink($tmpFile[0]);
564
565        return $status;
566    }
567
568    function __preg_quote($input) {
569	    return preg_quote($input, '/');
570    }
571
572    /**
573     * Download the file via HTTP URL + recurse if this is not an image
574     * The file will be saved as temporary file. The filename is the result.
575     **/
576    function __getHTTPFile($URL, $RECURSE=false, $newAdditionalParameters=null) {
577        global $conf;
578
579        $EXCLUDE = $this->getConf('exclude');
580        if ( !empty($EXCLUDE) ) {
581	        $PATTERN = "/(" . implode('|', explode(' ', preg_quote($EXCLUDE, '/'))) . ")/i";
582
583	        $this->functions->debug->message("Checking for exclude: ", array(
584	        	"pattern" => $PATTERN,
585	        	"file" => $URL,
586	        	"matches" => preg_match($PATTERN, $URL) ? 'match' : 'no match'
587	        ), 2);
588
589			if ( preg_match($PATTERN, $URL) ) { return false; }
590        }
591
592        $http = new HTTPProxy($this->functions->debug, $this->functions->settings);
593        $http->max_bodysize = $conf['fetchsize'];
594        // $http->user = $_SERVER['PHP_AUTH_USER']; // Must not be set, or the files will be authenticated and have the edit thingies
595        // $http->pass = $_SERVER['PHP_AUTH_PW']; // Must not be set, or the files will be authenticated and have the edit thingies
596
597        // Add additional Params
598        $this->functions->addAdditionalParametersToURL($URL, $newAdditionalParameters);
599
600        $this->functions->debug->message("Fetching URL: '$URL'", null, 2);
601        $getData = $http->get($URL, true); // true == sloopy, get 304 body as well.
602
603        if( $getData === false ) { // || ($http->status != 200 && !$this->functions->settings->ignoreNon200) ) {
604
605        	if ( $this->functions->settings->ignoreNon200 ) {
606	        	return false;
607        	}
608
609            $this->functions->debug->message("Sending request failed with error, HTTP status was '{$http->status}'.", $URL, 4);
610            return false;
611        }
612
613        if( empty($getData) ) {
614            $this->functions->debug->message("No data fetched", $URL, 4);
615            return false;
616        }
617
618        $this->functions->debug->message("Headers received", $http->resp_headers, 2);
619
620        if ( !$RECURSE ) {
621            // Parse URI PATH and add "html"
622            $this->functions->debug->message("========================================", null, 1);
623            $this->functions->debug->message("Starting to recurse file '$URL'", null , 1);
624			$this->functions->debug->message("----------------------------------------", null, 1);
625            $this->__getInternalLinks($getData);
626			$this->functions->debug->message("----------------------------------------", null, 1);
627            $this->functions->debug->message("Finished to recurse file '$URL'", null , 1);
628            $this->functions->debug->message("========================================", null, 1);
629        }
630
631        $tmpFile = tempnam($this->functions->settings->tmpDir , 'siteexport__');
632        $this->functions->debug->message("Temporary filename", $tmpFile, 1);
633
634        $fp = fopen( $tmpFile, "w");
635        if(!$fp) {
636            $this->functions->debug->message("Can't open temporary File '$tmpFile'.", null , 4);
637            return false;
638        }
639
640        fwrite($fp,$getData);
641        fclose($fp);
642
643        // plain/text; ...
644        $extension = explode(';', $http->resp_headers['content-type'], 2);
645        $extension = array_shift($extension);
646        $extension = explode('/', $extension, 2);
647        if ( $extension[0] == 'image' && preg_match("/^[a-zA-Z0-9]{3,}$/", $extension[1]) ) {
648            $extension = strtolower($extension[1]);
649            $this->functions->debug->message("Found new image extension:", $extension, 2);
650        } else {
651            unset($extension);
652        }
653
654        return array($tmpFile, preg_replace("/.*?filename=\"?(.*?)\"?;?$/", "$1", $http->resp_headers['content-disposition']), $extension);
655    }
656
657    /**
658     * Find internal links in the currently downloaded file. This also matches inside CSS files
659     **/
660    function __getInternalLinks(&$DATA) {
661
662        $PATTERN = '(href|src|action)="([^"]*)"';
663        $CALLBACK = array($this, '__fetchAndReplaceLink');
664        $DATA = preg_replace_callback("/$PATTERN/i", $CALLBACK, $DATA);
665
666        $PATTERNCSS = '(url\s*?)\(([^\)]*)\)';
667        $DATA = preg_replace_callback("/$PATTERNCSS/i", $CALLBACK, $DATA);
668    }
669
670    /**
671     * Deep Fetch and replace of links inside the texts matched by __getInternalLinks
672     **/
673    function __fetchAndReplaceLink($DATA) {
674        global $conf, $currentID, $currentParent;
675
676        $noDeepReplace = true;
677        $newAdditionalParameters = $this->functions->settings->additionalParameters;
678        $newDepth = $this->functions->settings->depth;
679        $hadBase = false;
680
681		// Clean data[2], remote ' and "
682		$DATA[2] = preg_replace("/^\s*?['\"]?(.*?)['\"]?\s*?$/", '\1', trim($DATA[2]));
683
684        $this->functions->debug->message("Starting Link Replacement", array( 'data' => $DATA, 'additional Params' => $newAdditionalParameters, 'newDepth' => $newDepth, 'currentID' => $currentID, 'currentParent' => $currentParent), 2);
685
686        // $DATA[2] = urldecode($DATA[2]); // Leads to problems because it does not re-encode the url
687        // External and mailto links
688        if ( preg_match("%^(https?://|mailto:|javascript:|data:)%", $DATA[2]) ) {
689            $this->functions->debug->message("Don't like http, mailto, data or javascript links here", null, 1);
690            return $this->__rebuildLink($DATA, "");
691        }
692        //if ( preg_match("%^(https?://|mailto:|" . DOKU_BASE . "/_export/)%", $DATA[2]) ) { return $this->__rebuildLink($DATA, ""); }
693        // External media - this is deep down in the link, so we have to grep it out
694        if ( preg_match("%media=(https?://.*?$)%", $DATA[2], $matches) ) {
695            $DATA[2] = $matches[1];
696            $this->functions->debug->message("This is an HTTP like somewhere else", $DATA, 1);
697            return $this->__rebuildLink($DATA, "");
698        }
699        // reference only links won't have to be rewritten
700        if ( preg_match("%^#.*?$%", $DATA[2]) ) {
701            $this->functions->debug->message("This is a refercence only", null, 1);
702            return $this->__rebuildLink($DATA, "");
703        }
704
705        // 2014-07-21: Origdata before anything else - or it will be missing some things.
706        $ORIGDATA2 = $DATA;
707        //        $ORIGDATA2 = $DATA[2]; // 08/10/2010 - this line required a $this->functions->wl which may mess up with the base URL
708        $this->functions->debug->message("OrigDATA is:", $ORIGDATA2, 1);
709
710        // strip all things out
711        // changed Data
712        $PARAMS = @parse_url($DATA[2], PHP_URL_QUERY);
713        $ANCHOR = @parse_url($DATA[2], PHP_URL_FRAGMENT);
714        $DATA[2] = @parse_url($DATA[2], PHP_URL_PATH);
715
716        // 2014-05-12 - fix problem with URLs starting with a ./ or ../ ... they seem to need the current IDs root
717        if ( preg_match("#^\.\.?/#", $DATA[2])) {
718            $DATA[2] = getNS($currentID) . ':' . $DATA[2];
719        }
720
721        // 2010-08-25 - fix problem with relative movement in links ( "test/../test2" )
722        // 2014-06-30 - what? to what will this end relatively?
723        $tmpData2 = '';
724        while( $tmpData2 != $DATA[2] ) {
725            $tmpData2 = $DATA[2];
726            $DATA[2] = preg_replace("#/(?!\.\.)[^\/]*?/\.\./#", '/', $DATA[2]);
727        }
728
729        $temp = preg_replace("%^" . preg_quote(DOKU_BASE, '%') . "%", "", $DATA[2]);
730        if ( $temp != $DATA[2] ) {
731            $DATA[2] = $temp;
732            $hadBase = true; // 2010-08-23 Check if there has been a rewrite here that will have to be considered later on
733        }
734
735        $this->functions->debug->message("URL before rewriting option for others than 1", array($DATA, $PARAMS, $hadBase), 1);
736
737        // Handle rewrites other than 1 - just for non-lib-files
738        // if ( !preg_match('$^/?lib/$', $DATA[2]) ) {
739        if ( !preg_match('$^(' . DOKU_BASE . ')?lib/$', $DATA[2]) ) {
740		    $this->functions->debug->message("Did not match '$^(" . DOKU_BASE . ")?lib/$' userewrite == {$conf['userewrite']}", null, 2);
741            if ( $conf['userewrite'] == 2 ) {
742                $DATA[2] = $this->__getInternalRewriteURL($DATA[2]);
743            } elseif ( $conf['userewrite'] == 0 ) {
744                $this->__getParamsAndDataRewritten($DATA, $PARAMS);
745            }
746        } else {
747	    	$this->functions->debug->message("This file must be inside lib ...", null, 2);
748        }
749
750        $this->functions->debug->message("URL before rewriting option", array($DATA, $PARAMS), 2);
751
752        // Generate ID
753        $DATA[2] = str_replace('/', ':', $DATA[2]);
754
755        // If Data was empty this must be the same file!;
756        if ( empty( $DATA[2] ) ) {
757            $DATA[2] = $currentID;
758        }
759
760        $ID = $DATA[2];
761        $MEDIAMATCHER = "#(_media(/|:)|media=|_detail(/|:)|_export(/|:)|do=export_)#i"; // 2010-10-23 added "(/|:)" for the ID may not contain slashes anymore
762        $ISMEDIA = preg_match($MEDIAMATCHER, $DATA[2]);
763        if ( $ISMEDIA && $conf['userewrite'] == 1) {
764            //$DATA[2] = preg_replace($MEDIAMATCHER, "", $DATA[2]);
765            $ID = preg_replace("#^_(detail|media)(/|:)#", "", $ID);
766        }
767
768        $ID = $this->functions->cleanID($DATA[2], null, $ISMEDIA );
769        //        $ID = $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'media') ); // Export anpassung nun weiter unten
770
771        //        $IDexists = page_exists($ID); // 08/10/2010 - Not needed. This will be done in the next block.
772        //        $this->functions->debug->message("Current ID: '$ID' exists: '" . ($IDexists ? 'true' : 'false') . "' (will be set to 'false' anyway)", null, 1);
773
774        $IDifIDnotExists = $ID; // 08/10/2010 - Save ID - with possible upper cases to preserve them
775        $IDexists = false;
776
777        $this->functions->debug->message("Resolving ID: '$ID'", null, 2);
778        if ( $ISMEDIA ) {
779            resolve_mediaid(null, $ID, $IDexists);
780
781            $this->functions->debug->message("Current mediaID to filename: '" . mediaFN($ID) . "'", null, 2);
782        } else {
783            resolve_pageid(null, $ID, $IDexists);
784            $this->functions->debug->message("Current ID to filename: '" . wikiFN($ID) . "'", null, 2);
785        }
786
787        $this->functions->debug->message("Current ID after resolvement: '$ID' the ID does exist: '" . ($IDexists ? 'true' : 'false') . "'", null, 2);
788        //        $ORIGDATA2 = @parse_url($this->functions->wl($ORIGDATA2, null, true)); // What was the next 2 line for? It did mess up with links from {{jdoc>}}
789        //        $this->functions->debug->message("OrigData ID after parse:", $ORIGDATA2, 1); // 08/10/2010 - The lines are obsolete when the $ORIGDATA2 = $DATA. $ORIGDATA is only for fallback
790
791        // 08/10/2010 - If the ID does not exist, we may have a problem here with upper cases - they will all be lower by now!
792        if ( !$IDexists ) {
793            $ID = $IDifIDnotExists; // there may have been presevered Upper cases. We will need them!
794        }
795
796        // $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'media') || strstr($DATA[2], 'export') );
797        if ( substr($ID, -1) == ':' || empty($ID) ) $ID .= $conf['start'];
798
799        // Generate Download URL
800        // $PARAMS = trim(str_replace('&amp;', '&', $PARAMS));
801        $PARAMS = trim($PARAMS);
802        $this->functions->removeWikiVariables($PARAMS, false, true);
803
804        $url = $this->functions->wl($ID, null, true, null, null, true, $hadBase) . ( !empty( $ANCHOR) ? '#' . $ANCHOR : '' ) . ( !empty( $PARAMS) ? '?' . $PARAMS : '' );
805        $this->functions->debug->message("URL from ID: '$url'", null, 2);
806
807        // Parse URI PATH and add "html"
808        $uri = @parse_url($url);
809        $DATA[2] = $uri['path'];
810
811        $this->functions->debug->message("DATA after parsing.", $DATA, 2);
812
813        // Second Rewrite for UseRewrite = 2
814        if ( $conf['userewrite'] == 2 && preg_match("%((/lib/exe/(fetch|detail|indexer)|feed|doku)\.php)/?(.*?)$%", $DATA[2], $matches)) {
815
816
817            // The actual file in lib
818            $DATA[2] = $matches[1];
819            $PARAMS .= '&' . (in_array($matches[3], array('fetch', 'detail')) ? 'media' : 'id') . '=' . cleanID(str_replace('/', ':', $matches[4]));
820
821/*            $DATA[2] = preg_replace( '$/lib/.*?fetch\.php$', '', $DATA[2]);
822            $DATA[2] = preg_replace( '%(/lib/.*?detail\.php.*$)%', '\1' . '.' . $this->functions->settings->fileType, $DATA[2]);
823
824            if ( preg_match( '%/(lib/.*?detail|doku)\.php%', $DATA[2])) {
825                $noDeepReplace = false;
826                $fileName = $this->functions->getSiteName($ID);
827                $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
828            }
829            $this->functions->debug->message("DATA after second rewrite with UseRewrite = 2", array($DATA, $noDeepReplace, $fileName, $newDepth), 1);
830*/
831            $this->functions->debug->message("DATA after second rewrite with UseRewrite = 2", array($DATA, $matches, $PARAMS), 1);
832        }
833
834        $DATA['ANCHOR'] = $ANCHOR;
835        $DATA['PARAMS'] = $PARAMS;
836        $elements = explode('/', $DATA[2]);
837
838        switch ( array_pop($elements) ) {
839            // CSS Extra Handling with extra rewrites
840            case 'css.php'	:	// $DATA[2] .=  ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS))) . '.css';
841                $DATA[2] .=  '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS)) . '.css'; // allways put parameters behind
842                // No paramters needed since they are rewritten.
843                $DATA['PARAMS'] = "";
844                $noDeepReplace = false;
845                $fileName = $this->functions->getSiteName($ID, true);
846
847                // NewDepth has to be relative to the css file itself ...
848                $newDepth = './' . str_repeat('../', count(explode('/', $fileName))-1); // it is an ID at this point.
849                $newAdditionalParameters['do'] = 'siteexport';
850
851                $this->functions->debug->message("This is CSS file", array($DATA, $noDeepReplace, $fileName, $newDepth, $newAdditionalParameters), 2);
852
853                break;
854            case 'js.php'	:	// $DATA[2] .= ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS))) . '.js';
855                $DATA[2] .=  '.t.' . $this->functions->cleanID($_REQUEST['template']) . '.js'; // allways put parameters behind
856                // set Template
857                if ( !empty( $_REQUEST['template'] ) ) {
858                    $url .= ( strstr($url, '?') ? '&' : '?' ) . 'template=' . $_REQUEST['template'];
859                }
860                // No paramters needed since they are rewritten.
861                $DATA['PARAMS'] = "";
862                $newAdditionalParameters['do'] = 'siteexport';
863
864                $this->functions->debug->message("This is JS file", array($DATA, $url, $fileName, $newAdditionalParameters), 2);
865
866                break;
867                // Detail Handling with extra Rewrites if Paramaters are available - otherwise this is just the fetch
868            case 'indexer.php' :
869                $this->functions->debug->message("Skipping indexer", null, 2);
870                return "";
871                break;
872            case 'detail.php' :
873                $noDeepReplace = false;
874
875                $this->__getParamsAndDataRewritten($DATA, $PARAMS, 'media');
876                $ID = $this->functions->cleanID(str_replace('/', ':', $DATA[2]), null, strstr($DATA[2], 'media'));
877                $fileName = $this->functions->getSiteName($ID, true); // 2010-09-03 - rewrite with override enabled
878
879                $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
880                $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
881                $DATA[2] .= '.detail.html';
882
883                $this->functions->debug->message("This is detail.php file with addParams", array($DATA, $ID, $fileName, $newDepth, $newAdditionalParameters), 2);
884                break;
885            case 'doku.php' :
886
887                $noDeepReplace = false;
888                $this->__getParamsAndDataRewritten($DATA, $PARAMS, 'id');
889                $ID = $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'id'));
890
891                $this->functions->debug->message("Current ID to filename (doku.php): '" . wikiFN($ID) . "'", null, 2);
892
893                $fileName = $this->functions->getSiteName($ID); // 2010-09-03 - rewrite with override enabled
894
895                $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
896                $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
897                $DATA[2] .= '.' . array_pop(explode('/', $fileName));
898
899                $this->functions->debug->message("This is doku.php file with addParams", array($DATA, $ID, $fileName, $newDepth, $newAdditionalParameters), 2);
900                return $this->__rebuildLink($DATA);
901                break;
902
903                // Fetch Handling for media - rewriting everything
904            case 'fetch.php':
905                $this->__getParamsAndDataRewritten($DATA, $PARAMS, 'media');
906
907                $DATA[2] = str_replace('/', ':', $DATA[2]);
908                $ID = $this->functions->cleanID($DATA[2], null, strstr($DATA[2], 'media'));
909                resolve_mediaid(null, $ID, $IDexists);
910
911                $DATA[2] = $this->functions->wl($ID, null, null, null, $IDexists, true);
912                $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
913
914                $DATA['PARAMS'] = "";
915                $newAdditionalParameters = array();
916
917                $this->functions->debug->message("This is fetch.php file", array($DATA, $ID, $PARAMS), 2);
918                break;
919
920                // default Handling for Pages
921            case 'feed.php':
922                return ""; // Ignore. Has no sense to export.
923                break;
924            default:
925                if ( preg_match("%" . preg_quote(DOKU_BASE, '%') . "_detail/%", $DATA[2]) ) {
926
927                    // GET ID Param from origdata2
928                    preg_match("#id=(.*?)(&|\")#i", $DATA[0], $backlinkID);
929                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
930
931                    $fileIDPart = isset($backlinkID[1]) && !empty($backlinkID[1]) ? $this->functions->cleanID(urldecode($backlinkID[1])) : 'detail';
932
933                    $ID = preg_replace("#^_detail(/|:)#", "", $ID);
934                    $DATA[2] .= ':' . $fileIDPart . '.' . $this->functions->settings->fileType; // add namespace and subpage for back button and add filetype
935
936                    $noDeepReplace = false;
937                    $fileName = $this->functions->shortenName($DATA[2]);
938                    $newDepth = str_repeat('../', count(explode('/', $fileName))-1);
939                    $url .= ( strstr($url, '?') ? '&' : '?' ) . 'id=' . $fileIDPart; // add id-part to URL for backlinks
940
941                    $DATA['PARAMS'] = "";
942
943                    $this->functions->debug->message("This is something with '_detail' file", array($DATA, $backlinkID, $newDepth, $url, $ID), 2);
944                } else if ( preg_match("%" . preg_quote(DOKU_BASE, '%') . "_export/(.*?)/%", $DATA[2], $fileType) ) {
945
946                    // Fixes multiple codeblocks in one file
947                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS);
948
949                    // add the Params no matter what they are. This is export. We don't mess with other files
950                    // adding the "/" fixes the usage of multiple codeblocks in the same namespace
951                    $DATA[2] .= (empty( $PARAMS ) ? '' : '/' . $PARAMS) . '.'. $fileType[1];
952
953                    $DATA['PARAMS'] = "";
954                    $this->functions->debug->message("This is something with '_export' file", $DATA, 2);
955
956                } else if ( $IDexists ) { // 08/10/2010 - was page_exists($ID) - but this should do as well.
957                    // If this is a page ... skip it!
958                    $DATA[2] .= ( !$this->functions->settings->addParams || empty($PARAMS) ? '' : '.' . $this->functions->cleanID(preg_replace("/(=|\?|&amp;)/", ".", $PARAMS)))  . '.' . $this->functions->settings->fileType;
959
960                    $DATA[2] = $this->functions->shortenName($DATA[2]);
961
962                    // If Parameters are to be included in the filename - they must not be added twice
963                    if ( $this->functions->settings->addParams ) $DATA['PARAMS'] = "";
964
965                    $this->functions->debug->message("This page really exists", $DATA, 1);
966
967                    return $this->__rebuildLink($DATA);
968                } else {
969                    $this->__rebuildDataForNormalFiles($DATA, $PARAMS, true);
970                    $newAdditionalParameters = null; // 2014-06-27 - when using the "normal" files way we will not need any additional stuff.
971                    // This would make problems with e.g. ditaa plugin
972                }
973
974                unset($newAdditionalParameters['diPlu']);
975        }
976
977        $this->functions->debug->message("DATA after SWITCH CASE decision", array($DATA, $noDeepReplace, $fileName, $newDepth), 1);
978
979        if ( $this->filewriter->canDoPDF() ) {
980            $this->functions->addAdditionalParametersToURL($url, $newAdditionalParameters);
981            $DATA[2] = $url;
982            unset($DATA['PARAMS']);
983            $url = $this->__rebuildLink($DATA, '');
984
985            $this->functions->debug->message("Creating PDF with URL '$url'", null, 2);
986
987            return $url;
988        }
989
990        // Create Name to save the file at
991        $DATA[2] = str_replace(':', '_', $DATA[2]);
992        $DATA[2] = $this->functions->shortenName($DATA[2]);
993
994
995        // File already loaded?
996        // 2010-10-23 - changes in_array from DATA[2] to $url - to check real URLs, the DATA[2] file will be checked with fileExistsInZip
997        if ( in_array($url, array_keys($this->fileChecked)) ) {
998            $DATA[2] = $this->fileChecked[$url];
999            $this->functions->debug->message("File has been checked before.", array($DATA, $url), 2);
1000            return $this->__rebuildLink($DATA);
1001        }
1002
1003        // 2010-09-03 - second check if the file is in the ZIP already.
1004        if ( $this->filewriter->fileExistsInZip($DATA[2]) ) {
1005            $this->functions->debug->message("File with DATA exists in ZIP.", $DATA, 3);
1006            return $this->__rebuildLink($DATA);
1007        }
1008
1009        // 2010-10-23 - What if this is a fetch.php? than we produced an error.
1010        //        $this->fileChecked[] = $DATA[2];
1011
1012        // get tempFile and save it
1013        $origDepth = $this->functions->settings->depth;
1014        $this->functions->settings->depth = $newDepth;
1015
1016        $tmpID = $currentID;
1017        $tmpParent = $currentParent;
1018        $tmpFile = false;
1019
1020        $currentParent = $fileName;
1021        $this->functions->debug->message("Going to get the file", array($url, $noDeepReplace, $newAdditionalParameters), 2);
1022        $tmpFile = $this->__getHTTPFile($url, $noDeepReplace, $newAdditionalParameters);
1023        $this->functions->debug->message("The getHTTPFile result is still empty", $tmpFile === false ? 'YES' : 'NO', 2);
1024
1025        $currentParent = $tmpParent;
1026        $currentID = $tmpID;
1027        $this->functions->settings->depth = $origDepth; // 2010-09-03 - Reset depth at the very end
1028
1029        if ( $tmpFile === false ) {
1030            // Keep an potentially extra link intact
1031
1032            $this->functions->debug->message("The fetched file '$url' is 'false'", null, 3);
1033            if ( $IDexists === false ) {
1034                $this->functions->debug->message("The file does not exist, fallback to ORIGDATA", $ORIGDATA2, 2);
1035                $DATA[2] = $this->functions->shortenName($ORIGDATA2[2]); // get Origdata Path
1036            }
1037
1038            $this->fileChecked[$url] = $DATA[2]; // 2010-09-03 - One URL to one FileName
1039            $link = $this->__rebuildLink($DATA);
1040            $this->functions->debug->message("Final Link after empty file from '$url'", null, 2);
1041
1042            return $link;
1043        }
1044
1045        $this->functions->debug->message("The fetched file looks good.", $tmpFile, 2);
1046        $dirname = dirname($DATA[2]);
1047
1048        // If a Filename was given that does not comply to the original name, us this one!
1049        // 2014-02-28 But only if we are on PDF Mode. Does this produce any other Problems?
1050        if ( $this->filewriter->canDoPDF() && !empty($tmpFile[1]) && !strstr($DATA[2], $tmpFile[1]) ) {
1051			$DATA[2] = $dirname . '/' . $tmpFile[1];
1052            $this->functions->debug->message("Changed filename.", $DATA[2], 2);
1053        }
1054
1055        // Custom extension if not set already - 2014-07-02
1056        if ( !empty($tmpFile[2]) && !preg_match("#\.{$tmpFile[2]}$#", $DATA[2]) ) {
1057            $DATA[2] = preg_match("#(\.[^\.]+)$#", $DATA[2]) ? preg_replace("#(\.[^\.]+)$#", '.' . $tmpFile[2], $DATA[2]) : $DATA[2] . '.' . $tmpFile[2];
1058            $this->functions->debug->message("Added extension provided from Server.", $DATA[2], 2);
1059        }
1060
1061        // Add to zip
1062        $this->fileChecked[$url] = $DATA[2]; // 2010-09-03 - One URL to one FileName
1063
1064        $status = $this->filewriter->__addFileToZip($tmpFile[0], $DATA[2]);
1065        @unlink($tmpFile[0]);
1066
1067        $newURL = $this->__rebuildLink($DATA);
1068        $this->functions->debug->message("Returning final Link to document: '$newURL'", null, 2);
1069
1070        return $newURL;
1071    }
1072
1073    /**
1074     * build the new link to be put in place for the donwloaded site
1075     **/
1076    function __rebuildLink($DATA, $DEPTH = null) {
1077        global $currentID, $currentParent;
1078
1079        // depth is set, skip this one
1080        if ( is_null( $DEPTH ) ) $DEPTH = $this->functions->settings->depth;
1081        $DATA[2] .= ( !empty( $DATA['PARAMS']) && $this->functions->settings->addParams? '?' . $DATA['PARAMS'] : '' ) . ( !empty( $DATA['ANCHOR'] ) ? '#' . $DATA['ANCHOR'] : '' );
1082
1083        $intermediateURL = $DEPTH . $DATA[2];
1084
1085//*
1086        // 2012-06-15 originally has an absolute path ... we might need a relative one if not in our namespace
1087        if ( empty($_REQUEST['absolutePath']) && preg_match("#^(\.\./)+#", $intermediateURL) ) {
1088
1089            $this->functions->debug->message("OK, this is not to be absolute: ", array($intermediateURL, $currentParent), 1);
1090            // Experimental
1091            $intermediateURL = $this->functions->getRelativeURL($intermediateURL, $currentParent);
1092        }
1093/*/
1094        // Check if the URL has a ../../something/somethingelse
1095        // and basically goes back to our current page or something in parallel
1096        // 1) remove all ../ at begining
1097
1098        $this->functions->debug->message("currentID: '{$currentID}'", null, 1);
1099        $checkURL = preg_replace("#^(\.\./)+#", '', $intermediateURL);
1100        if ( $checkURL != $intermediateURL ) {
1101            $this->functions->debug->message("Found ../: '$checkURL' / currentIDPart: '{$currentIDPart}'", null, 2);
1102
1103            // 2) check if the URLs next parts match the current ENS to all NS parts of the current ID
1104            // $this->functions->debug->message("Found ENS: '{$this->functions->settings->exportNamespace}', currentID: {$currentID}'", null, 2);
1105            $currentIDPart = preg_replace("#^{$this->functions->settings->exportNamespace}/#", "", str_replace(':', '/', getNS($currentID) . '/'));
1106
1107            if ( ($newURL = preg_replace("#^{$currentIDPart}#", "./", $checkURL)) != $checkURL ) {
1108                // 3) if so, remove these parts
1109                $intermediateURL = $newURL;
1110                $this->functions->debug->message("Found ./ URL: '$newURL'", null, 2);
1111            }
1112        }
1113//*/
1114        $newURL = $DATA[1] == 'url' ? $DATA[1] . '(' . $intermediateURL . ')' : $DATA[1] . '="' . $intermediateURL . '"';
1115        $this->functions->debug->message("Re-created URL: '$newURL'", $DEPTH, 2);
1116
1117        return $newURL;
1118    }
1119
1120
1121    /**
1122     * remove an old zip file
1123     **/
1124    function __removeOldZip( $FILENAMEID=null, $checkForMore=true ) {
1125        global $INFO;
1126        global $conf;
1127
1128        $returnValue = true;
1129
1130        if ( empty($FILENAMEID) ) {
1131            $FILENAMEID = $this->functions->settings->origZipFile;
1132        }
1133
1134        if ( !file_exists(mediaFN($FILENAMEID)) ) {
1135            $returnValue = true;
1136        } else {
1137
1138            require_once( DOKU_INC . 'inc/media.php');
1139            if ( !media_delete($FILENAMEID, $INFO['perm']) ) {
1140                $returnValue = false;
1141            }
1142        }
1143
1144        if ( $checkForMore ) {
1145            // Try to remove more files.
1146            $ns = getNS($FILENAMEID);
1147            $fn = $this->functions->getSpecialExportFileName(noNS($FILENAMEID), '.+');
1148
1149            $data = array();
1150            search($data, $conf['mediadir'], 'search_media', array('pattern' => "/$fn$/i"), $ns);
1151
1152            if ( count($data > 0) ) {
1153
1154                // 30 Minuten Cache Zeit
1155                $cache = $this->functions->settings->cachetime;
1156                foreach ( $data as $media ) {
1157
1158                    //decide if has to be deleted needed:
1159                    if( $media['mtime'] < time()-$cache) {
1160                        $this->__removeOldZip($media['id'], false);
1161                    }
1162                }
1163            }
1164
1165        }
1166
1167        return $returnValue;
1168    }
1169
1170    /**
1171     * if confrewrite is set to internal rewrite, use this function - taken from a DW renderer
1172     **/
1173    function __getInternalRewriteURL($url) {
1174        global $conf;
1175
1176        //construct page id from request URI
1177        if( $conf['userewrite'] != 2) { return $url; }
1178
1179        //get the script URL
1180        if($conf['basedir']) {
1181            $relpath = '';
1182            $script = $conf['basedir'].$relpath.basename($_SERVER['SCRIPT_FILENAME']);
1183        } elseif($_SERVER['DOCUMENT_ROOT'] && $_SERVER['SCRIPT_FILENAME']){
1184            $script = preg_replace ('/^'.preg_quote($_SERVER['DOCUMENT_ROOT'],'/').'/','',
1185            $_SERVER['SCRIPT_FILENAME']);
1186            $script = '/'.$script;
1187        }else{
1188            $script = $_SERVER['SCRIPT_NAME'];
1189        }
1190
1191        //clean script and request (fixes a windows problem)
1192        $script  = preg_replace('/\/\/+/','/',$script);
1193        $request = preg_replace('/\/\/+/','/',$url);
1194
1195        //remove script URL and Querystring to gain the id
1196        if(preg_match('/^'.preg_quote($script,'/').'(.*)/',$request, $match)){
1197            $id = preg_replace ('/\?.*/','',$match[1]);
1198        }
1199        $id = urldecode($id);
1200        //strip leading slashes
1201        $id = preg_replace('!^/+!','',$id);
1202
1203        return $id;
1204    }
1205
1206    /**
1207     * rewrite parameter calls
1208     **/
1209    function __getParamsAndDataRewritten(&$DATA, &$PARAMS, $IDKEY='id') {
1210
1211        $PARRAY = explode('&', str_replace('&amp;', '&', $PARAMS) );
1212        $PARAMS = array();
1213
1214        foreach ( $PARRAY as $item ) {
1215            list($key, $value) = explode('=', $item, 2);
1216            if ( empty($key) || empty($value) )
1217            continue;
1218
1219            if ( strtolower(trim($key)) == $IDKEY ) {
1220                $DATA[2] = preg_replace("%^" . preg_quote(DOKU_BASE, '%') . "%", "", str_replace(':', '/', $value));
1221                continue;
1222            }
1223
1224            $PARAMS[] = "$key=$value";
1225        }
1226
1227        sort($PARAMS);
1228
1229        $PARAMS = implode('&', $PARAMS);
1230    }
1231
1232    /**
1233     * rewrite detail.php calls
1234     **/
1235    function __rebuildDataForNormalFiles(&$DATA, &$PARAMS, $addHash=false) {
1236        $PARTS = explode('.', $DATA[2]);
1237        if ( count($PARTS) > 1 ) {
1238            $EXT = '.' . array_pop($PARTS);
1239        }
1240
1241        $internalParams = $PARAMS = preg_replace("/(=|\?|&amp;)/", ".", $PARAMS);
1242
1243        // add anyways - if on overridde
1244        if ( !$this->functions->settings->addParams && !empty($PARAMS) && $addHash ) {
1245            $internalParams = md5($PARAMS);
1246        } else if ( !$this->functions->settings->addParams ){
1247            $internalParams = null;
1248        }
1249
1250        $DATA[2] = implode('.', $PARTS) . ( empty($internalParams) ? '' : '.' . $this->functions->cleanID($internalParams)) . ( $EXT == '.php' ? '.' . $this->functions->settings->fileType : $EXT );
1251        $DATA[2] = preg_replace("/\.+/", ".", $DATA[2]);
1252        $this->functions->debug->message("Rebuilding Data for normal file.", $DATA[2], 1);
1253    }
1254
1255    /*
1256     * Clean JS and CSS cache files
1257     */
1258    function cleanCacheFiles() {
1259
1260        $_SERVER['HTTP_HOST'] = preg_replace("/:?\d+$/", '', $_SERVER['HTTP_HOST']);
1261        $cache = getCacheName('scripts'.$_SERVER['HTTP_HOST'].'-siteexport-js-'.$_SERVER['SERVER_PORT'],'.js');
1262        $this->unlinkIfExists($cache);
1263
1264        $tpl = trim(preg_replace('/[^\w-]+/','',$_REQUEST['template']));
1265        if($tpl)
1266        {
1267            $tplinc = DOKU_INC.'lib/tpl/'.$tpl.'/';
1268            $tpldir = DOKU_BASE.'lib/tpl/'.$tpl.'/';
1269        } else {
1270            $tplinc = DOKU_TPLINC;
1271            $tpldir = DOKU_TPL;
1272        }
1273
1274        // The generated script depends on some dynamic options
1275        $cache = getCacheName('styles'.$_SERVER['HTTP_HOST'].'-siteexport-js-'.$_SERVER['SERVER_PORT'].DOKU_BASE.$tplinc.$style,'.css');
1276        $this->unlinkIfExists($cache);
1277    }
1278
1279    function unlinkIfExists($cache) {
1280        if ( file_exists($cache) ) {
1281            @unlink($cache);
1282            if(function_exists('gzopen')) @unlink("$cache.gz");
1283        }
1284    }
1285
1286    // Private unset function
1287    private function clear(&$variable)
1288    {
1289        if ( isset($variable) )
1290        {
1291            unset($variable);
1292        }
1293    }
1294}