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authorNicolas Lœuillet <nicolas@loeuillet.org>2015-01-19 14:48:03 +0100
committerNicolas Lœuillet <nicolas@loeuillet.org>2015-01-19 14:48:03 +0100
commit820d81aa614f0a6c7e52b049c39ef167c9debd51 (patch)
tree9cbee4942426148d9d846634fee967fc585c54bd /inc/3rdparty/libraries/simplepie/library/SimplePie/Parser.php
parent3329f1bf3d855849ee2b3f8333be542d53b62fb8 (diff)
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Diffstat (limited to 'inc/3rdparty/libraries/simplepie/library/SimplePie/Parser.php')
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1<?php
2/**
3 * SimplePie
4 *
5 * A PHP-Based RSS and Atom Feed Framework.
6 * Takes the hard work out of managing a complete RSS/Atom solution.
7 *
8 * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without modification, are
12 * permitted provided that the following conditions are met:
13 *
14 * * Redistributions of source code must retain the above copyright notice, this list of
15 * conditions and the following disclaimer.
16 *
17 * * Redistributions in binary form must reproduce the above copyright notice, this list
18 * of conditions and the following disclaimer in the documentation and/or other materials
19 * provided with the distribution.
20 *
21 * * Neither the name of the SimplePie Team nor the names of its contributors may be used
22 * to endorse or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
26 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
27 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
28 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 *
35 * @package SimplePie
36 * @version 1.3.1
37 * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
38 * @author Ryan Parman
39 * @author Geoffrey Sneddon
40 * @author Ryan McCue
41 * @link http://simplepie.org/ SimplePie
42 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
43 */
44
45/**
46 * Parses XML into something sane
47 *
48 *
49 * This class can be overloaded with {@see SimplePie::set_parser_class()}
50 *
51 * @package SimplePie
52 * @subpackage Parsing
53 */
54class SimplePie_Parser
55{
56 var $error_code;
57 var $error_string;
58 var $current_line;
59 var $current_column;
60 var $current_byte;
61 var $separator = ' ';
62 var $namespace = array('');
63 var $element = array('');
64 var $xml_base = array('');
65 var $xml_base_explicit = array(false);
66 var $xml_lang = array('');
67 var $data = array();
68 var $datas = array(array());
69 var $current_xhtml_construct = -1;
70 var $encoding;
71 protected $registry;
72
73 public function set_registry(SimplePie_Registry $registry)
74 {
75 $this->registry = $registry;
76 }
77
78 public function parse(&$data, $encoding)
79 {
80 // Use UTF-8 if we get passed US-ASCII, as every US-ASCII character is a UTF-8 character
81 if (strtoupper($encoding) === 'US-ASCII')
82 {
83 $this->encoding = 'UTF-8';
84 }
85 else
86 {
87 $this->encoding = $encoding;
88 }
89
90 // Strip BOM:
91 // UTF-32 Big Endian BOM
92 if (substr($data, 0, 4) === "\x00\x00\xFE\xFF")
93 {
94 $data = substr($data, 4);
95 }
96 // UTF-32 Little Endian BOM
97 elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00")
98 {
99 $data = substr($data, 4);
100 }
101 // UTF-16 Big Endian BOM
102 elseif (substr($data, 0, 2) === "\xFE\xFF")
103 {
104 $data = substr($data, 2);
105 }
106 // UTF-16 Little Endian BOM
107 elseif (substr($data, 0, 2) === "\xFF\xFE")
108 {
109 $data = substr($data, 2);
110 }
111 // UTF-8 BOM
112 elseif (substr($data, 0, 3) === "\xEF\xBB\xBF")
113 {
114 $data = substr($data, 3);
115 }
116
117 if (substr($data, 0, 5) === '<?xml' && strspn(substr($data, 5, 1), "\x09\x0A\x0D\x20") && ($pos = strpos($data, '?>')) !== false)
118 {
119 $declaration = $this->registry->create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
120 if ($declaration->parse())
121 {
122 $data = substr($data, $pos + 2);
123 $data = '<?xml version="' . $declaration->version . '" encoding="' . $encoding . '" standalone="' . (($declaration->standalone) ? 'yes' : 'no') . '"?>' . $data;
124 }
125 else
126 {
127 $this->error_string = 'SimplePie bug! Please report this!';
128 return false;
129 }
130 }
131
132 $return = true;
133
134 static $xml_is_sane = null;
135 if ($xml_is_sane === null)
136 {
137 $parser_check = xml_parser_create();
138 xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
139 xml_parser_free($parser_check);
140 $xml_is_sane = isset($values[0]['value']);
141 }
142
143 // Create the parser
144 if ($xml_is_sane)
145 {
146 $xml = xml_parser_create_ns($this->encoding, $this->separator);
147 xml_parser_set_option($xml, XML_OPTION_SKIP_WHITE, 1);
148 xml_parser_set_option($xml, XML_OPTION_CASE_FOLDING, 0);
149 xml_set_object($xml, $this);
150 xml_set_character_data_handler($xml, 'cdata');
151 xml_set_element_handler($xml, 'tag_open', 'tag_close');
152
153 // Parse!
154 if (!xml_parse($xml, $data, true))
155 {
156 $this->error_code = xml_get_error_code($xml);
157 $this->error_string = xml_error_string($this->error_code);
158 $return = false;
159 }
160 $this->current_line = xml_get_current_line_number($xml);
161 $this->current_column = xml_get_current_column_number($xml);
162 $this->current_byte = xml_get_current_byte_index($xml);
163 xml_parser_free($xml);
164 return $return;
165 }
166 else
167 {
168 libxml_clear_errors();
169 $xml = new XMLReader();
170 $xml->xml($data);
171 while (@$xml->read())
172 {
173 switch ($xml->nodeType)
174 {
175
176 case constant('XMLReader::END_ELEMENT'):
177 if ($xml->namespaceURI !== '')
178 {
179 $tagName = $xml->namespaceURI . $this->separator . $xml->localName;
180 }
181 else
182 {
183 $tagName = $xml->localName;
184 }
185 $this->tag_close(null, $tagName);
186 break;
187 case constant('XMLReader::ELEMENT'):
188 $empty = $xml->isEmptyElement;
189 if ($xml->namespaceURI !== '')
190 {
191 $tagName = $xml->namespaceURI . $this->separator . $xml->localName;
192 }
193 else
194 {
195 $tagName = $xml->localName;
196 }
197 $attributes = array();
198 while ($xml->moveToNextAttribute())
199 {
200 if ($xml->namespaceURI !== '')
201 {
202 $attrName = $xml->namespaceURI . $this->separator . $xml->localName;
203 }
204 else
205 {
206 $attrName = $xml->localName;
207 }
208 $attributes[$attrName] = $xml->value;
209 }
210 $this->tag_open(null, $tagName, $attributes);
211 if ($empty)
212 {
213 $this->tag_close(null, $tagName);
214 }
215 break;
216 case constant('XMLReader::TEXT'):
217
218 case constant('XMLReader::CDATA'):
219 $this->cdata(null, $xml->value);
220 break;
221 }
222 }
223 if ($error = libxml_get_last_error())
224 {
225 $this->error_code = $error->code;
226 $this->error_string = $error->message;
227 $this->current_line = $error->line;
228 $this->current_column = $error->column;
229 return false;
230 }
231 else
232 {
233 return true;
234 }
235 }
236 }
237
238 public function get_error_code()
239 {
240 return $this->error_code;
241 }
242
243 public function get_error_string()
244 {
245 return $this->error_string;
246 }
247
248 public function get_current_line()
249 {
250 return $this->current_line;
251 }
252
253 public function get_current_column()
254 {
255 return $this->current_column;
256 }
257
258 public function get_current_byte()
259 {
260 return $this->current_byte;
261 }
262
263 public function get_data()
264 {
265 return $this->data;
266 }
267
268 public function tag_open($parser, $tag, $attributes)
269 {
270 list($this->namespace[], $this->element[]) = $this->split_ns($tag);
271
272 $attribs = array();
273 foreach ($attributes as $name => $value)
274 {
275 list($attrib_namespace, $attribute) = $this->split_ns($name);
276 $attribs[$attrib_namespace][$attribute] = $value;
277 }
278
279 if (isset($attribs[SIMPLEPIE_NAMESPACE_XML]['base']))
280 {
281 $base = $this->registry->call('Misc', 'absolutize_url', array($attribs[SIMPLEPIE_NAMESPACE_XML]['base'], end($this->xml_base)));
282 if ($base !== false)
283 {
284 $this->xml_base[] = $base;
285 $this->xml_base_explicit[] = true;
286 }
287 }
288 else
289 {
290 $this->xml_base[] = end($this->xml_base);
291 $this->xml_base_explicit[] = end($this->xml_base_explicit);
292 }
293
294 if (isset($attribs[SIMPLEPIE_NAMESPACE_XML]['lang']))
295 {
296 $this->xml_lang[] = $attribs[SIMPLEPIE_NAMESPACE_XML]['lang'];
297 }
298 else
299 {
300 $this->xml_lang[] = end($this->xml_lang);
301 }
302
303 if ($this->current_xhtml_construct >= 0)
304 {
305 $this->current_xhtml_construct++;
306 if (end($this->namespace) === SIMPLEPIE_NAMESPACE_XHTML)
307 {
308 $this->data['data'] .= '<' . end($this->element);
309 if (isset($attribs['']))
310 {
311 foreach ($attribs[''] as $name => $value)
312 {
313 $this->data['data'] .= ' ' . $name . '="' . htmlspecialchars($value, ENT_COMPAT, $this->encoding) . '"';
314 }
315 }
316 $this->data['data'] .= '>';
317 }
318 }
319 else
320 {
321 $this->datas[] =& $this->data;
322 $this->data =& $this->data['child'][end($this->namespace)][end($this->element)][];
323 $this->data = array('data' => '', 'attribs' => $attribs, 'xml_base' => end($this->xml_base), 'xml_base_explicit' => end($this->xml_base_explicit), 'xml_lang' => end($this->xml_lang));
324 if ((end($this->namespace) === SIMPLEPIE_NAMESPACE_ATOM_03 && in_array(end($this->element), array('title', 'tagline', 'copyright', 'info', 'summary', 'content')) && isset($attribs['']['mode']) && $attribs['']['mode'] === 'xml')
325 || (end($this->namespace) === SIMPLEPIE_NAMESPACE_ATOM_10 && in_array(end($this->element), array('rights', 'subtitle', 'summary', 'info', 'title', 'content')) && isset($attribs['']['type']) && $attribs['']['type'] === 'xhtml')
326 || (end($this->namespace) === SIMPLEPIE_NAMESPACE_RSS_20 && in_array(end($this->element), array('title')))
327 || (end($this->namespace) === SIMPLEPIE_NAMESPACE_RSS_090 && in_array(end($this->element), array('title')))
328 || (end($this->namespace) === SIMPLEPIE_NAMESPACE_RSS_10 && in_array(end($this->element), array('title'))))
329 {
330 $this->current_xhtml_construct = 0;
331 }
332 }
333 }
334
335 public function cdata($parser, $cdata)
336 {
337 if ($this->current_xhtml_construct >= 0)
338 {
339 $this->data['data'] .= htmlspecialchars($cdata, ENT_QUOTES, $this->encoding);
340 }
341 else
342 {
343 $this->data['data'] .= $cdata;
344 }
345 }
346
347 public function tag_close($parser, $tag)
348 {
349 if ($this->current_xhtml_construct >= 0)
350 {
351 $this->current_xhtml_construct--;
352 if (end($this->namespace) === SIMPLEPIE_NAMESPACE_XHTML && !in_array(end($this->element), array('area', 'base', 'basefont', 'br', 'col', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param')))
353 {
354 $this->data['data'] .= '</' . end($this->element) . '>';
355 }
356 }
357 if ($this->current_xhtml_construct === -1)
358 {
359 $this->data =& $this->datas[count($this->datas) - 1];
360 array_pop($this->datas);
361 }
362
363 array_pop($this->element);
364 array_pop($this->namespace);
365 array_pop($this->xml_base);
366 array_pop($this->xml_base_explicit);
367 array_pop($this->xml_lang);
368 }
369
370 public function split_ns($string)
371 {
372 static $cache = array();
373 if (!isset($cache[$string]))
374 {
375 if ($pos = strpos($string, $this->separator))
376 {
377 static $separator_length;
378 if (!$separator_length)
379 {
380 $separator_length = strlen($this->separator);
381 }
382 $namespace = substr($string, 0, $pos);
383 $local_name = substr($string, $pos + $separator_length);
384 if (strtolower($namespace) === SIMPLEPIE_NAMESPACE_ITUNES)
385 {
386 $namespace = SIMPLEPIE_NAMESPACE_ITUNES;
387 }
388
389 // Normalize the Media RSS namespaces
390 if ($namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG ||
391 $namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG2 ||
392 $namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG3 ||
393 $namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG4 ||
394 $namespace === SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG5 )
395 {
396 $namespace = SIMPLEPIE_NAMESPACE_MEDIARSS;
397 }
398 $cache[$string] = array($namespace, $local_name);
399 }
400 else
401 {
402 $cache[$string] = array('', $string);
403 }
404 }
405 return $cache[$string];
406 }
407}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-15 14:41:47 +0000