This file is indexed.

/usr/share/php/TheSeer/fDOMDocument/fDOMDocument.php is in php-fdomdocument 1.6.0-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
<?php
/**
 * Copyright (c) 2010-2013 Arne Blankerts <arne@blankerts.de>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *
 *   * Neither the name of Arne Blankerts nor the names of contributors
 *     may be used to endorse or promote products derived from this software
 *     without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT  * NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER ORCONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * @category  PHP
 * @package   TheSeer\fDOM
 * @author    Arne Blankerts <arne@blankerts.de>
 * @copyright Arne Blankerts <arne@blankerts.de>, All rights reserved.
 * @license   http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @link      http://github.com/theseer/fdomdocument
 *
 */

namespace TheSeer\fDOM {
    use TheSeer\fDOM\CSS\Translator;

    /**
     * fDOMDocument extension to PHP's DOMDocument.
     * This class adds various convenience methods to simplify APIs
     * It is set to final since further extending it would even more
     * break the Object structure after use of registerNodeClass.
     *
     * @category  PHP
     * @package   TheSeer\fDOM
     * @author    Arne Blankerts <arne@blankerts.de>
     * @access    public
     *
     */
    class fDOMDocument extends \DOMDocument {

        /**
         * XPath Object instance
         *
         * @var fDOMXPath
         */
        private $xp = NULL;

        /**
         * List of registered prefixes and their namespace uri
         * @var Array
         */
        private $prefixes = array();

        /**
         * Extended DOMDocument constructor
         *
         * @param string $version       XML Version, should be 1.0
         * @param string $encoding      Encoding, defaults to utf-8
         * @param array  $streamOptions optional stream options array
         *
         * @return fDOMDocument
         */
        public function __construct($version = '1.0', $encoding = 'utf-8', $streamOptions = NULL) {
            if (!is_null($streamOptions)) {
                $this->setStreamContext($streamOptions);
            }

            libxml_use_internal_errors(TRUE);
            $rc = parent::__construct($version, $encoding);

            $this->registerNodeClass('DOMDocument', get_called_class());
            $this->registerNodeClass('DOMNode', 'TheSeer\fDOM\fDOMNode');
            $this->registerNodeClass('DOMElement', 'TheSeer\fDOM\fDOMElement');
            $this->registerNodeClass('DOMDocumentFragment', 'TheSeer\fDOM\fDOMDocumentFragment');

            return $rc;
        }

        /**
         * Reset XPath object so the clone gets a new instance when needed
         */
        public function __clone() {
            $this->xp = new fDOMXPath($this);
            foreach($this->prefixes as $prefix => $uri) {
                $this->xp->registerNamespace($prefix, $uri);
            }
        }

        public function __toString() {
            return $this->C14N();
        }

        /**
         * Set Stream context options
         *
         * @param Array $options Stream context options
         *
         * @return boolean true on success, false on failure
         */
        public function setStreamContext(Array $options) {
            if (!count($options)) {
                return FALSE;
            }
            $context = stream_context_create($options);
            libxml_set_streams_context($context);
            return TRUE;
        }

        /**
         * Wrapper to DOMDocument load with exception handling
         * Returns true on success to satisfy the compatibilty of the original DOM Api
         *
         * @param string  $fname   File to load
         * @param int|null $options LibXML Flags to pass
         *
         * @throws fDOMException
         *
         * @return bool|mixed
         */
        public function load($fname, $options = LIBXML_NONET) {
            $this->xp = NULL;
            $tmp = parent :: load($fname, $options);
            if (!$tmp || libxml_get_last_error()) {
                throw new fDOMException("loading file '$fname' failed.", fDOMException::LoadError);
            }
            return TRUE;
        }

        /**
         * Wrapper to DOMDocument loadXML with exception handling
         * Returns true on success to satisfy the compatibilty of the original DOM Api
         *
         * @param string  $source  XML source code
         * @param integer $options LibXML option flags
         *
         * @throws fDOMException
         *
         * @return boolean
         */
        public function loadXML($source, $options = LIBXML_NONET) {
            $this->xp = NULL;
            $tmp = parent :: loadXML($source, $options);
            if (!$tmp || libxml_get_last_error()) {
                throw new fDOMException('parsing string failed', fDOMException::ParseError);
            }
            return TRUE;
        }

        /**
         * Wrapper to DOMDocument loadHTMLFile with exception handling.
         * Returns true on success to satisfy the compatibilty of the original DOM Api
         *
         * @param string  $fname html file to load
         * @param integer $options Options bitmask (@see DOMDocument::loadHTMLFile)
         *
         * @throws fDOMException
         *
         * @return boolean
         */
        public function loadHTMLFile($fname, $options = NULL) {
            $this->xp = NULL;
            if (version_compare(PHP_VERSION, '5.4.0', '<')) {
                if ($options != NULL) {
                    throw new fDOMException('Passing options requires PHP 5.4.0+', fDOMException::LoadError);
                }
                $tmp = parent :: loadHTMLFile($fname);
            } else {
                $tmp = parent :: loadHTMLFile($fname, $options);
            }
            if (!$tmp || libxml_get_last_error()) {
                throw new fDOMException("loading html file '$fname' failed", fDOMException::LoadError);
            }
            return TRUE;
        }

        /**
         * Wrapper to DOMDocument loadHTML with exception handling
         * Returns true on success to satisfy the compatibilty of the original DOM Api
         *
         * @param string  $source html source code
         * @param integer $options Options bitmask (@see DOMDocument::loadHTML)
         *
         * @throws fDOMException
         *
         * @return boolean
         */
        public function loadHTML($source, $options = NULL) {
            $this->xp = NULL;
            if (version_compare(PHP_VERSION, '5.4.0', '<')) {
                if ($options != NULL) {
                    throw new fDOMException('Passing options requires PHP 5.4.0+', fDOMException::LoadError);
                }
                $tmp = parent :: loadHTML($source);
            } else {
                $tmp = parent :: loadHTML($source, $options);
            }
            if (!$tmp || libxml_get_last_error()) {
                throw new fDOMException('parsing html string failed', fDOMException::ParseError);
            }
            return TRUE;
        }

        /**
         * Wrapper to DOMDocument::save with exception handling
         *
         * @param string  $filename filename to save to
         * @param integer $options Options bitmask (@see DOMDocument::save)
         *
         * @throws fDOMException
         *
         * @return integer bytes saved
         */
        public function save($filename, $options = NULL) {
            $tmp = parent::save($filename, $options);
            if (!$tmp) {
                throw new fDOMException("Saving XML to file '$filename' failed", fDOMException::SaveError);
            }
            return $tmp;
        }

        /**
         * Wrapper to DOMDocument::saveHTML with exception handling
         *
         * @param DOMNode|null $node Context DOMNode (optional)
         *
         * @throws fDOMException
         * @return string html content
         */
        public function saveHTML(\DOMNode $node = NULL) {
            if (version_compare(PHP_VERSION, '5.3.6', '<') && $node != NULL) {
                throw new fDOMException('Passing a context node requires PHP 5.3.6+', fDOMException::SaveError);
            }
            $tmp = parent::saveHTML($node);
            if (!$tmp) {
                throw new fDOMException('Serializing to HTML failed', fDOMException::SaveError);
            }
            return $tmp;
        }

        /**
         * Wrapper to DOMDocument::saveHTMLfile with exception handling
         *
         * @param string $filename filename to save to
         * @param integer $options Options bitmask (@see DOMDocument::saveHTMLFile)
         *
         * @throws fDOMException
         *
         * @return integer bytes saved
         */
        public function saveHTMLFile($filename, $options = NULL) {
            $tmp = parent::saveHTMLFile($filename, $options);
            if (!$tmp) {
                throw new fDOMException("Saving HTML to file '$filename' failed", fDOMException::SaveError);
            }
            return $tmp;
        }

        /**
         * Wrapper to DOMDocument::saveXML with exception handling
         *
         * @param \DOMNode $node    node to start serializing at
         * @param integer  $options options flags as bitmask
         *
         * @throws fDOMException
         *
         * @return string serialized XML
         */
        public function saveXML(\DOMNode $node = NULL, $options = NULL) {
            try {
                $tmp = parent::saveXML($node, $options);
                if (!$tmp) {
                    throw new fDOMException('Serializing to XML failed', fDOMException::SaveError);
                }
                return $tmp;
            } catch (\Exception $e) {
                if (!$e instanceof fDOMException) {
                    throw new fDOMException($e->getMessage(), fDOMException::SaveError, $e);
                }
                throw $e;
            }
        }

        /**
         * get Instance of DOMXPath Object for current DOM
         *
         * @throws fDOMException
         *
         * @return fDOMXPath
         */
        public function getDOMXPath() {
            if (is_null($this->xp)) {
                $this->xp = new fDOMXPath($this);
            }
            if (!$this->xp) {
                throw new fDOMException('creating DOMXPath object failed.', fDOMException::NoDOMXPath);
            }
            return $this->xp;
        }

        /**
         * Convert a given DOMNodeList into a DOMFragment
         *
         * @param \DOMNodeList $list The Nodelist to process
         * @param boolean     $move Signale if nodes are to be moved into fragment or not
         *
         * @return fDOMDocumentFragment
         */
        public function nodeList2Fragment(\DOMNodeList $list, $move=FALSE) {
            $frag = $this->createDocumentFragment();
            /** @var fDOMNode $node */
            foreach($list as $node) {
                $frag->appendChild($move ? $node : $node->cloneNode(TRUE));
            }
            return $this->ensureIntance($frag);
        }

        /**
         * Perform an xpath query
         *
         * @param String   $q   query string containing xpath
         * @param \DOMNode|null $ctx (optional) Context DOMNode
         * @param boolean  $registerNodeNS  Register flag pass through
         *
         * @return \DOMNodeList
         */
        public function query($q, \DOMNode $ctx = NULL, $registerNodeNS = TRUE) {
            if (is_null($this->xp)) {
                $this->getDOMXPath();
            }
            return $this->xp->evaluate($q, $ctx, $registerNodeNS);
        }

        /**
         * Perform an xpath query and return only the 1st match
         *
         * @param String   $q   query string containing xpath
         * @param \DOMNode  $ctx (optional) Context DOMNode
         * @param boolean  $registerNodeNS  Register flag pass thru
         *
         * @return fDOMNode
         */
        public function queryOne($q, \DOMNode $ctx = NULL, $registerNodeNS = TRUE) {
            if (is_null($this->xp)) {
                $this->getDOMXPath();
            }
            return $this->xp->queryOne($q, $ctx, $registerNodeNS);
        }

        /**
         * Forwarder to fDOMXPath's prepare method allowing for easy and secure
         * placeholder replacement comparable to sql's prepared statements
         * .
         * @param string $xpath    String containing xpath with :placeholder markup
         * @param array  $valueMap Array containing keys (:placeholder) and value pairs to be quoted
         *
         * @return string
         */
        public function prepareQuery($xpath, array $valueMap) {
            if (is_null($this->xp)) {
                $this->getDOMXPath();
            }
            return $this->xp->prepare($xpath, $valueMap);
        }

        /**
         * Use a CSS Level 3 Selector string to query select nodes
         *
         * @param string   $selector A CSS Level 3 Selector string
         * @param \DOMNode $ctx
         * @param bool     $registerNodeNS
         *
         * @return \DOMNodeList
         */
        public function select($selector, \DOMNode $ctx = NULL, $registerNodeNS = TRUE) {
            $translator = new Translator();
            $xpath = $translator->translate($selector);
            if ($ctx != NULL) {
                $xpath = '.' . $xpath;
            }
            return $this->query($xpath, $ctx, $registerNodeNS);
        }

        /**
         * Forward to DOMXPath->registerNamespace()
         *
         * @param string $prefix The prefix to use
         * @param string $uri    The uri to assign to this prefix
         *
         * @throws fDOMException
         *
         * @return void
         */
        public function registerNamespace($prefix, $uri) {
            if (is_null($this->xp)) {
                $this->getDOMXPath();
            }
            if (!$this->xp->registerNamespace($prefix, $uri)) {
                throw new fDOMException("Registering namespace '$uri' with prefix '$prefix' failed.", fDOMException::RegistrationFailed);
            }
            $this->prefixes[$prefix] = $uri;
        }

        /**
         * Forward to DOMXPath->registerPHPFunctions()
         *
         * @param mixed $restrict Array of function names or string with functionname to restrict callabilty to
         *
         * @throws fDOMException
         *
         * @return void
         */
        public function registerPHPFunctions($restrict = NULL) {
            if (is_null($this->xp)) {
                $this->getDOMXPath();
            }
            $this->xp->registerPHPFunctions($restrict);
            if (libxml_get_last_error()) {
                throw new fDOMException("Registering php functions failed.", fDOMException::RegistrationFailed);
            }
        }

        /**
         * Create a new element in namespace defined by given prefix
         *
         * @param string $prefix   Namespace prefix for node to create
         * @param string $name     Name of not element to create
         * @param string $content  Optional content to be set
         * @param bool $asTextNode Create content as textNode rather then setting nodeValue
         *
         * @throws fDOMException
         *
         * @return fDOMElement Reference to created fDOMElement
         */
        public function createElementPrefix($prefix, $name, $content = NULL, $asTextNode = FALSE) {
            if (!isset($this->prefixes[$prefix])) {
                throw new fDOMException("'$prefix' not bound", fDOMException::UnboundPrefix);
            }
            return $this->createElementNS($this->prefixes[$prefix], $prefix.':'.$name, $content, $asTextNode);
        }

        /**
         * Create a new fDOMElement and return it, optionally set content
         *
         * @param string $name Name of node to create
         * @param null $content Content to set (optional)
         * @param bool $asTextNode Create content as textNode rather then setting nodeValue
         *
         * @throws fDOMException
         *
         * @return fDOMElement Reference to created fDOMElement
         */
        public function createElement($name, $content = NULL, $asTextnode = FALSE) {
            try {
                $node = parent::createElement($name);
                if (!$node) {
                    throw new fDOMException("Creating element with name '$name' failed", fDOMException::NameInvalid);
                }
                if ($content !== NULL) {
                    if ($asTextnode) {
                        $node->appendChild($this->createTextnode($content));
                    } else {
                        $node->nodeValue = $content;
                    }
                    if (libxml_get_errors()) {
                        throw new fDOMException("Setting content value failed", fDOMException::SetFailedError);
                    }
                }
                return $this->ensureIntance($node);
            } catch (\DOMException $e) {
                throw new fDOMException("Creating elemnt with name '$name' failed", 0, $e);
            }

        }

        /**
         * Create a new fDOMElement within given namespace and return it
         *
         * @param string $namespace Namespace URI for node to create
         * @param string $name Name of node to create
         * @param null $content Content to set (optional)
         * @param bool $asTextNode Create content as textNode rather then setting nodeValue
         *
         * @throws fDOMException
         *
         * @return fDOMElement
         */
        public function createElementNS($namespace, $name, $content = NULL, $asTextNode = FALSE) {
            $node = parent::createElementNS($namespace, $name);
            if (!$node) {
                throw new fDOMException("Creating element with name '$name' failed", fDOMException::NameInvalid);
            }
            if ($content !== NULL) {
                if ($asTextNode) {
                    $node->appendChild($this->createTextnode($content));
                } else {
                    $node->nodeValue = $content;
                }
                if (libxml_get_errors()) {
                    throw new fDOMException("Setting content value failed", fDOMException::SetFailedError);
                }
            }
            return $this->ensureIntance($node);
        }

        public function createDocumentFragment() {
            return $this->ensureIntance(parent::createDocumentFragment());
        }

        /**
         * Check if the given node is in the same document
         *
         * @param \DOMNode $node Node to compare with
         *
         * @return boolean true on match, false if they differ
         *
         */
        public function inSameDocument(\DOMNode $node) {
            if ($node instanceof \DOMDocument) {
                return $this->isSameNode($node);
            }
            return $this->isSameNode($node->ownerDocument);
        }

        /**
         * Create a new element and append it as documentElement
         *
         * @param $name     Name of not element to create
         * @param $content  Optional content to be set
         *
         * @return fDOMElement Reference to created fDOMElement
         */
        public function appendElement($name, $content = NULL, $asTextNode = FALSE) {
            return $this->appendChild(
                $this->createElement($name, $content, $asTextNode)
            );
        }

        /**
         * Create a new element in given namespace and append it as documentElement
         *
         * @param $ns       Namespace of node to create
         * @param $name     Name of not element to create
         * @param $content  Optional content to be set
         *
         * @return fDOMElement Reference to created fDOMElement
         */
        public function appendElementNS($ns, $name, $content = NULL, $asTextNode = FALSE) {
            return $this->appendChild(
                $this->createElementNS($ns, $name, $content, $asTextNode)
            );
        }

        /**
         * This is a workaround for hhvm's broken registerNodeClass handling
         * (https://github.com/facebook/hhvm/issues/1848)
         *
         * @param \DOMNode $node
         *
         * @return \DOMNode
         */
        private function ensureIntance(\DOMNode $node) {
            if ($node instanceof fDOMNode || $node instanceof fDOMElement || $node instanceof fDOMDocumentFragment) {
                return $node;
            }
            return $this->importNode($node, TRUE);
        }

    } // fDOMDocument

}