| 1 |
<?php |
| 2 |
require_once(dirname(__FILE__).'/feedtime.class.php'); |
| 3 |
|
| 4 |
/** |
| 5 |
* class MagpieFromSimplePie: compatibility layer to prevent existing filters |
| 6 |
* from breaking. |
| 7 |
* |
| 8 |
* @since 2010.0203 |
| 9 |
* @version 2010.0612 |
| 10 |
*/ |
| 11 |
|
| 12 |
class MagpieFromSimplePie { |
| 13 |
var $pie; |
| 14 |
var $originals; |
| 15 |
|
| 16 |
var $channel; |
| 17 |
var $items; |
| 18 |
var $textinput = array (); |
| 19 |
var $image = array(); |
| 20 |
|
| 21 |
var $feed_type; |
| 22 |
var $feed_version; |
| 23 |
|
| 24 |
var $_XMLNS_FAMILIAR = array ( |
| 25 |
'http://www.w3.org/2005/Atom' => 'atom' /* 1.0 */, |
| 26 |
'http://purl.org/atom/ns#' => 'atom' /* pre-1.0 */, |
| 27 |
'http://purl.org/rss/1.0/' => 'rss' /* 1.0 */, |
| 28 |
'http://backend.userland.com/RSS2' => 'rss' /* 2.0 */, |
| 29 |
'http://www.w3.org/1999/02/22-rdf-syntax-ns#' => 'rdf', |
| 30 |
'http://www.w3.org/1999/xhtml' => 'xhtml', |
| 31 |
'http://purl.org/dc/elements/1.1/' => 'dc', |
| 32 |
'http://purl.org/dc/terms/' => 'dcterms', |
| 33 |
'http://purl.org/rss/1.0/modules/content/' => 'content', |
| 34 |
'http://purl.org/rss/1.0/modules/syndication/' => 'sy', |
| 35 |
'http://purl.org/rss/1.0/modules/taxonomy/' => 'taxo', |
| 36 |
'http://purl.org/rss/1.0/modules/dc/' => 'dc', |
| 37 |
'http://wellformedweb.org/CommentAPI/' => 'wfw', |
| 38 |
'http://webns.net/mvcb/' => 'admin', |
| 39 |
'http://purl.org/rss/1.0/modules/annotate/' => 'annotate', |
| 40 |
'http://xmlns.com/foaf/0.1/' => 'foaf', |
| 41 |
'http://madskills.com/public/xml/rss/module/trackback/' => 'trackback', |
| 42 |
'http://web.resource.org/cc/' => 'cc', |
| 43 |
'http://search.yahoo.com/mrss' => 'media', |
| 44 |
'http://search.yahoo.com/mrss/' => 'media', |
| 45 |
'http://video.search.yahoo.com/mrss' => 'media', |
| 46 |
'http://video.search.yahoo.com/mrss/' => 'media', |
| 47 |
'http://purl.org/syndication/thread/1.0' => 'thr', |
| 48 |
'http://purl.org/syndication/thread/1.0/' => 'thr', |
| 49 |
'http://www.w3.org/XML/1998/namespace' => 'xml', |
| 50 |
'http://www.itunes.com/dtds/podcast-1.0.dtd' => 'itunes', |
| 51 |
'http://a9.com/-/spec/opensearchrss/1.0/' => 'openSearch', |
| 52 |
'http://purl.org/rss/1.0/modules/slash/' => 'slash', |
| 53 |
'http://www.google.com/schemas/reader/atom/' => 'gr', |
| 54 |
'urn:atom-extension:indexing' => 'indexing', |
| 55 |
); |
| 56 |
|
| 57 |
/** |
| 58 |
* MagpieFromSimplePie constructor |
| 59 |
* |
| 60 |
* @param SimplePie $pie The feed to convert to MagpieRSS format. |
| 61 |
* @param mixed $item |
| 62 |
* |
| 63 |
* @uses SimplePie::get_items |
| 64 |
* @uses MagpieFromSimplePie::processFeedData |
| 65 |
* @uses MagpieFromSimplePie::processItemData |
| 66 |
* @uses MagpieFromSimplePie::normalize |
| 67 |
* @uses MagpieFromSimplePie::is_atom |
| 68 |
*/ |
| 69 |
function MagpieFromSimplePie ($pie, $item = true) { |
| 70 |
$this->pie = $pie; |
| 71 |
|
| 72 |
// item in {NULL, true} = process channel data |
| 73 |
if (!is_a($item, 'SimplePie_Item')) : |
| 74 |
$this->originals = $this->pie->get_items(); |
| 75 |
|
| 76 |
$this->channel = $this->processFeedData($this->pie->data); |
| 77 |
else : |
| 78 |
$this->originals = array($item); |
| 79 |
$this->channel = NULL; |
| 80 |
endif; |
| 81 |
|
| 82 |
// item in {true, SimplePie_Item} = process item data |
| 83 |
if (!is_null($item)) : |
| 84 |
foreach ($this->originals as $key => $item) : |
| 85 |
$this->items[$key] = $this->processItemData($item->data); |
| 86 |
endforeach; |
| 87 |
else : |
| 88 |
$this->items = NULL; |
| 89 |
endif; |
| 90 |
|
| 91 |
$this->normalize(); |
| 92 |
|
| 93 |
// In case anyone goes poking around our private members (uh...) |
| 94 |
$this->feed_type = ($this->is_atom() ? 'Atom' : 'RSS'); |
| 95 |
$this->feed_version = $this->feed_version(); |
| 96 |
$this->encoding = $pie->get_encoding(); |
| 97 |
} /* MagpieFromSimplePie constructor */ |
| 98 |
|
| 99 |
/** |
| 100 |
* MagpieFromSimplePie::get_items: returns an array of MagpieRSS format arrays |
| 101 |
* equivalent to the SimplePie_Item objects in the SimplePie object from which this |
| 102 |
* object was constructed. |
| 103 |
* |
| 104 |
* @return array An array of MagpieRSS-format arrays representing the items on this feed |
| 105 |
*/ |
| 106 |
function get_items () { |
| 107 |
return $this->items; |
| 108 |
} /* MagpieFromSimplePie::get_items () */ |
| 109 |
|
| 110 |
/** |
| 111 |
* MagpieFromSimplePie::get_item: returns a single MagpieRSS format array equivalent |
| 112 |
* to a SimplePie_Item object from which this object was constructed. |
| 113 |
* |
| 114 |
* @return array A MagpieRSS-format array representing an item on this feed |
| 115 |
*/ |
| 116 |
function get_item () { |
| 117 |
if (is_array($this->items)) : |
| 118 |
$ret = reset($this->items); |
| 119 |
else : |
| 120 |
$ret = NULL; |
| 121 |
endif; |
| 122 |
return $ret; |
| 123 |
} /* MagpieFromSimplePie::get_item () */ |
| 124 |
|
| 125 |
/** |
| 126 |
* MagpieFromSimplePie::processFeedData |
| 127 |
* |
| 128 |
* @param array $data |
| 129 |
* @return array |
| 130 |
* |
| 131 |
* @uses MagpieFromSimplePie::processChannelData() |
| 132 |
*/ |
| 133 |
function processFeedData ($data) { |
| 134 |
$ret = array(); |
| 135 |
if (isset($data['child'])) : foreach ($data['child'] as $ns => $elements) : |
| 136 |
foreach ($elements as $name => $multi) : |
| 137 |
foreach ($multi as $element) : |
| 138 |
if ($name=='feed' or $name=='channel') : |
| 139 |
// Don't need to process these |
| 140 |
foreach (array( |
| 141 |
'', |
| 142 |
'http://www.w3.org/2005/Atom', |
| 143 |
'http://purl.org/rss/1.0/', |
| 144 |
'http://backend.userland.com/RSS2' |
| 145 |
) as $ns) : |
| 146 |
if (isset($element['child'][$ns]['entry'])) : unset($element['child'][$ns]['entry']); endif; |
| 147 |
if (isset($element['child'][$ns]['item'])) : unset($element['child'][$ns]['item']); endif; |
| 148 |
endforeach; |
| 149 |
|
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$ret = $this->processChannelData($element) + $ret; |
| 151 |
elseif (in_array(strtolower($name), array('rss', 'rdf'))) : |
| 152 |
// Drop down to get to <channel> element |
| 153 |
$ret = $this->processFeedData($element) + $ret; |
| 154 |
endif; |
| 155 |
endforeach; |
| 156 |
endforeach; |
| 157 |
endforeach; endif; |
| 158 |
return $ret; |
| 159 |
} /* MagpieFromSimplePie::processFeedData() */ |
| 160 |
|
| 161 |
/** |
| 162 |
* MagpieFromSimplePie::processChannelData |
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* |
| 164 |
* @param array $data |
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* @param array $path |
| 166 |
* @return array |
| 167 |
* |
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* @uses MagpieFromSimplePie::handleAttributes |
| 169 |
* @uses MagpieFromSimplePie::handleChildren |
| 170 |
*/ |
| 171 |
function processChannelData ($data, $path = array()) { |
| 172 |
$ret = array(); |
| 173 |
$tagPath = strtolower(implode('_', $path)); |
| 174 |
|
| 175 |
// Only process at the right level |
| 176 |
if (strlen($tagPath) > 0 |
| 177 |
and isset($data['data']) |
| 178 |
and strlen($data['data']) > 0) : |
| 179 |
$ret[$tagPath] = $data['data']; |
| 180 |
endif; |
| 181 |
|
| 182 |
$ret = $this->handleAttributes($data, $path) |
| 183 |
+ $this->handleChildren($data, $path, 'processChannelData') |
| 184 |
+ $ret; |
| 185 |
|
| 186 |
return $ret; |
| 187 |
} /* MagpieFromSimplePie::processChannelData() */ |
| 188 |
|
| 189 |
/** |
| 190 |
* MagpieFromSimplePie::processItemData |
| 191 |
* |
| 192 |
* @param array $data |
| 193 |
* @param array $path |
| 194 |
* @return array |
| 195 |
* |
| 196 |
* @uses MagpieFromSimplePie::handleAttributes |
| 197 |
* @uses MagpieFromSimplePie::handleChildren |
| 198 |
*/ |
| 199 |
function processItemData ($data, $path = array()) { |
| 200 |
$ret = array(); |
| 201 |
$tagPath = strtolower(implode('_', $path)); |
| 202 |
|
| 203 |
if (strlen($tagPath) > 0 and isset($data['data']) and strlen($data['data']) > 0) : |
| 204 |
$ret[$tagPath] = $data['data']; |
| 205 |
endif; |
| 206 |
|
| 207 |
// Set up xml:base to be recorded in array |
| 208 |
if (isset($data['xml_base_explicit']) and $data['xml_base_explicit']) : |
| 209 |
$data['attribs']['']['xml:base'] = $data['xml_base']; |
| 210 |
endif; |
| 211 |
|
| 212 |
$ret = $this->handleAttributes($data, $path) |
| 213 |
+ $this->handleChildren($data, $path, 'processItemData') |
| 214 |
+ $ret; |
| 215 |
|
| 216 |
return $ret; |
| 217 |
} /* MagpieFromSimplePie::processItemData() */ |
| 218 |
|
| 219 |
/** |
| 220 |
* MagpieFromSimplePie::handleAttributes |
| 221 |
* |
| 222 |
* @param array $data |
| 223 |
* @param array $path |
| 224 |
* @return array |
| 225 |
*/ |
| 226 |
function handleAttributes ($data, $path) { |
| 227 |
$tagPath = strtolower(implode('_', $path)); |
| 228 |
$ret = array(); |
| 229 |
if (isset($data['attribs'])) : foreach ($data['attribs'] as $ns => $pairs) : |
| 230 |
if (isset($this->_XMLNS_FAMILIAR[$ns])) : |
| 231 |
$ns = $this->_XMLNS_FAMILIAR[$ns]; |
| 232 |
endif; |
| 233 |
|
| 234 |
foreach ($pairs as $attr => $value) : |
| 235 |
$attr = strtolower($attr); |
| 236 |
if ($ns=='rdf' and $attr=='about') : |
| 237 |
$ret['about'] = $value; |
| 238 |
elseif (strlen($tagPath) > 0) : |
| 239 |
if (strlen($ns) > 0 and $this->is_namespaced($ns, /*attrib=*/ true)) : |
| 240 |
$attr = $ns.':'.$attr; |
| 241 |
endif; |
| 242 |
|
| 243 |
$ret[$tagPath.'@'.$attr] = $value; |
| 244 |
if (isset($ret[$tagPath.'@']) and strlen($ret[$tagPath.'@'])>0) : |
| 245 |
$ret[$tagPath.'@'] .= ','; |
| 246 |
else : |
| 247 |
$ret[$tagPath.'@'] = ''; |
| 248 |
endif; |
| 249 |
$ret[$tagPath.'@'] .= $attr; |
| 250 |
endif; |
| 251 |
endforeach; |
| 252 |
endforeach; endif; |
| 253 |
return $ret; |
| 254 |
} /* MagpieFromSimplePie::handleAttributes() */ |
| 255 |
|
| 256 |
var $inImage = false; |
| 257 |
var $inTextInput = false; |
| 258 |
|
| 259 |
/** |
| 260 |
* MagpieFromSimplePie::handleChildren |
| 261 |
* |
| 262 |
* @param array $data |
| 263 |
* @param array $path |
| 264 |
* @return array |
| 265 |
* |
| 266 |
* @uses MagpieFromSimplePie::get_attrib |
| 267 |
* @uses MagpieFromSimplePie::is_atom |
| 268 |
* @uses MagpieFromSimplePie::increment_element |
| 269 |
* @uses MagpieFromSimplePie::processItemData |
| 270 |
*/ |
| 271 |
function handleChildren ($data, $path = array(), $method = 'processItemData') { |
| 272 |
$tagPath = strtolower(implode('_', $path)); |
| 273 |
$ret = array(); |
| 274 |
if (isset($data['child'])) : foreach ($data['child'] as $ns => $elements) : |
| 275 |
if (isset($this->_XMLNS_FAMILIAR[$ns])) : |
| 276 |
$ns = $this->_XMLNS_FAMILIAR[$ns]; |
| 277 |
endif; |
| 278 |
if (''==$ns) : |
| 279 |
$ns = ($this->is_atom() ? 'atom' : 'rss'); |
| 280 |
endif; |
| 281 |
|
| 282 |
foreach ($elements as $tag => $multi) : foreach ($multi as $element) : |
| 283 |
$copyOver = NULL; |
| 284 |
|
| 285 |
if ('image'==$tag and 'rss'==$ns) : |
| 286 |
$this->inImage = true; |
| 287 |
$childPath = array(); |
| 288 |
$co = NULL; |
| 289 |
elseif ('textinput'==strtolower($tag) and 'rss'==$ns) : |
| 290 |
$this->inTextInput = true; |
| 291 |
$childPath = array(); |
| 292 |
$co = NULL; |
| 293 |
else : |
| 294 |
// Determine tag name; check #; increment # |
| 295 |
$childTag = strtolower($tag); |
| 296 |
if ('link'==$tag and 'atom'==$ns) : |
| 297 |
$rel = $this->get_attrib( |
| 298 |
/*ns=*/ array('', 'http://www.w3.org/2005/Atom'), |
| 299 |
/*attr=*/ 'rel', |
| 300 |
$element |
| 301 |
); |
| 302 |
if ($rel != 'alternate') : |
| 303 |
$childTag .= '_'.$rel; |
| 304 |
endif; |
| 305 |
$copyOver = $this->get_attrib( |
| 306 |
/*ns=*/ array('', 'http://www.w3.org/2005/Atom'), |
| 307 |
/*attr=*/ 'href', |
| 308 |
$element |
| 309 |
); |
| 310 |
elseif ('content'==$tag and 'atom'==$ns) : |
| 311 |
$childTag = 'atom_'.$tag; |
| 312 |
endif; |
| 313 |
|
| 314 |
$childTag = $this->increment_element($ret, $childTag, $ns, $path); |
| 315 |
$childPath = $path; $childPath[] = strtolower($childTag); |
| 316 |
|
| 317 |
if (!is_null($copyOver)) : |
| 318 |
$co = array(); |
| 319 |
$co[implode('_', $childPath)] = $copyOver; |
| 320 |
else : |
| 321 |
$co = NULL; |
| 322 |
endif; |
| 323 |
endif; |
| 324 |
|
| 325 |
$arr = $this->{$method}($element, $childPath); |
| 326 |
if ($co) : |
| 327 |
$arr = $co + $arr; // Left-hand overwrites right-hand |
| 328 |
endif; |
| 329 |
|
| 330 |
if ($this->inImage) : |
| 331 |
$this->image = $arr + $this->image; |
| 332 |
|
| 333 |
// Close tag |
| 334 |
if ('image'==$tag and 'rss'==$ns) : $this->inImage = false; endif; |
| 335 |
elseif ($this->inTextInput) : |
| 336 |
$this->textinput = $arr + $this->textinput; |
| 337 |
|
| 338 |
// Close tag |
| 339 |
if ('textinput'==$tag and 'rss'==$ns) : $this->inTextInput = false; endif; |
| 340 |
elseif ($this->is_namespaced($ns)) : |
| 341 |
if (!isset($ret[$ns])) : $ret[$ns] = array(); endif; |
| 342 |
$ret[$ns] = $arr + $ret[$ns]; |
| 343 |
else : |
| 344 |
$ret = $arr + $ret; |
| 345 |
endif; |
| 346 |
endforeach; endforeach; |
| 347 |
|
| 348 |
endforeach; endif; |
| 349 |
return $ret; |
| 350 |
} /* MagpieFromSimplePie::handleChildren() */ |
| 351 |
|
| 352 |
/** |
| 353 |
* MagpieFromSimplePie::get_attrib |
| 354 |
* |
| 355 |
* @param array $namespaces |
| 356 |
* @param string $attr |
| 357 |
* @param array $element |
| 358 |
* @param mixed $default |
| 359 |
*/ |
| 360 |
function get_attrib ($namespaces, $attr, $element, $default = NULL) { |
| 361 |
$ret = $default; |
| 362 |
if (isset($element['attribs'])) : |
| 363 |
foreach ($namespaces as $ns) : |
| 364 |
if (isset($element['attribs'][$ns]) |
| 365 |
and isset($element['attribs'][$ns][$attr])) : |
| 366 |
$ret = $element['attribs'][$ns][$attr]; |
| 367 |
break; |
| 368 |
endif; |
| 369 |
endforeach; |
| 370 |
endif; |
| 371 |
return $ret; |
| 372 |
} /* MagpieFromSimplePie::get_attrib */ |
| 373 |
|
| 374 |
/** |
| 375 |
* MagpieFromSimplePie::normalize |
| 376 |
* |
| 377 |
* @uses MagpieFromSimplePie::is_atom |
| 378 |
* @uses MagpieFromSimplePie::is_rss |
| 379 |
* @uses MagpieFromSimplePie::normalize_element |
| 380 |
* @uses MagpieFromSimplePie::normalize_author_inheritance |
| 381 |
* @uses MagpieFromSimplePie::normalize_atom_person |
| 382 |
* @uses MagpieFromSimplePie::normalize_enclosure |
| 383 |
* @uses MagpieFromSimplePie::normalize_category |
| 384 |
* @uses MagpieFromSimplePie::normalize_dc_subject |
| 385 |
* @uses FeedTime |
| 386 |
* @uses FeedTime::timestamp |
| 387 |
*/ |
| 388 |
function normalize () { |
| 389 |
if (!is_null($this->channel)) : |
| 390 |
// Normalize channel data |
| 391 |
if ( $this->is_atom() ) : |
| 392 |
// Atom 1.0 elements <=> Atom 0.3 elements (Thanks, o brilliant wordsmiths of the Atom 1.0 standard!) |
| 393 |
if ($this->feed_version() < 1.0) : |
| 394 |
$this->normalize_element($this->channel, 'tagline', $this->channel, 'subtitle'); |
| 395 |
$this->normalize_element($this->channel, 'copyright', $this->channel, 'rights'); |
| 396 |
$this->normalize_element($this->channel, 'modified', $this->channel, 'updated'); |
| 397 |
else : |
| 398 |
$this->normalize_element($this->channel, 'subtitle', $this->channel, 'tagline'); |
| 399 |
$this->normalize_element($this->channel, 'rights', $this->channel, 'copyright'); |
| 400 |
$this->normalize_element($this->channel, 'updated', $this->channel, 'modified'); |
| 401 |
endif; |
| 402 |
$this->normalize_element($this->channel, 'author', $this->channel['dc'], 'creator', 'normalize_atom_person'); |
| 403 |
$this->normalize_element($this->channel, 'contributor', $this->channel['dc'], 'contributor', 'normalize_atom_person'); |
| 404 |
|
| 405 |
// Atom elements to RSS elements |
| 406 |
$this->normalize_element($this->channel, 'subtitle', $this->channel, 'description'); |
| 407 |
|
| 408 |
if ( isset($this->channel['logo']) ) : |
| 409 |
$this->normalize_element($this->channel, 'logo', $this->image, 'url'); |
| 410 |
$this->normalize_element($this->channel, 'link', $this->image, 'link'); |
| 411 |
$this->normalize_element($this->channel, 'title', $this->image, 'title'); |
| 412 |
endif; |
| 413 |
|
| 414 |
elseif ( $this->is_rss() ) : |
| 415 |
// Normalize image element from where stupid MagpieRSS puts it |
| 416 |
//$this->normalize_element($this->channel, 'image_title', $this->image, 'title'); |
| 417 |
//$this->normalize_element($this->channel, 'image_link', $this->image, 'link'); |
| 418 |
//$this->normalize_element($this->channel, 'image_url', $this->image, 'url'); |
| 419 |
|
| 420 |
// ... and, gag, textInput |
| 421 |
//$this->normalize_element($this->channel, 'textinput_title', $this->textinput, 'title'); |
| 422 |
//$this->normalize_element($this->channel, 'textinput_link', $this->textinput, 'link'); |
| 423 |
//$this->normalize_element($this->channel, 'textinput_name', $this->textinput, 'name'); |
| 424 |
//$this->normalize_element($this->channel, 'textinput_description', $this->textinput, 'description'); |
| 425 |
|
| 426 |
// RSS elements to Atom elements |
| 427 |
$this->normalize_element($this->channel, 'description', $this->channel, 'tagline'); // Atom 0.3 |
| 428 |
$this->normalize_element($this->channel, 'description', $this->channel, 'subtitle'); // Atom 1.0 (yay wordsmithing!) |
| 429 |
$this->normalize_element($this->image, 'url', $this->channel, 'logo'); |
| 430 |
endif; |
| 431 |
endif; |
| 432 |
|
| 433 |
if (!is_null($this->items)) : |
| 434 |
// Now loop through and normalize item data |
| 435 |
for ( $i = 0; $i < count($this->items); $i++) : |
| 436 |
$item = $this->items[$i]; |
| 437 |
|
| 438 |
// if atom populate rss fields and normalize 0.3 and 1.0 feeds |
| 439 |
if ( $this->is_atom() ) : |
| 440 |
// Atom 1.0 elements <=> Atom 0.3 elements |
| 441 |
if ($this->feed_version() < 1.0) : |
| 442 |
$this->normalize_element($item, 'modified', $item, 'updated'); |
| 443 |
$this->normalize_element($item, 'issued', $item, 'published'); |
| 444 |
else : |
| 445 |
$this->normalize_element($item, 'updated', $item, 'modified'); |
| 446 |
$this->normalize_element($item, 'published', $item, 'issued'); |
| 447 |
endif; |
| 448 |
|
| 449 |
$this->normalize_author_inheritance($item, $this->originals[$i]); |
| 450 |
|
| 451 |
// Atom elements to RSS elements |
| 452 |
$this->normalize_element($item, 'author', $item['dc'], 'creator', 'normalize_atom_person'); |
| 453 |
$this->normalize_element($item, 'contributor', $item['dc'], 'contributor', 'normalize_atom_person'); |
| 454 |
$this->normalize_element($item, 'summary', $item, 'description'); |
| 455 |
$this->normalize_element($item, 'atom_content', $item['content'], 'encoded'); |
| 456 |
$this->normalize_element($item, 'link_enclosure', $item, 'enclosure', 'normalize_enclosure'); |
| 457 |
|
| 458 |
// Categories |
| 459 |
if ( isset($item['category#']) ) : // Atom 1.0 categories to dc:subject and RSS 2.0 categories |
| 460 |
$this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category'); |
| 461 |
elseif ( isset($item['dc']['subject#']) ) : // dc:subject to Atom 1.0 and RSS 2.0 categories |
| 462 |
$this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject'); |
| 463 |
endif; |
| 464 |
|
| 465 |
// Normalized item timestamp |
| 466 |
$item_date = (isset($item['published']) ) ? $item['published'] : $item['updated']; |
| 467 |
elseif ( $this->is_rss() ) : |
| 468 |
// RSS elements to Atom elements |
| 469 |
$this->normalize_element($item, 'description', $item, 'summary'); |
| 470 |
$this->normalize_element($item, 'enclosure', $item, 'link_enclosure', 'normalize_enclosure'); |
| 471 |
|
| 472 |
// Categories |
| 473 |
if ( isset($item['category#']) ) : // RSS 2.0 categories to dc:subject and Atom 1.0 categories |
| 474 |
$this->normalize_element($item, 'category', $item['dc'], 'subject', 'normalize_category'); |
| 475 |
elseif ( isset($item['dc']['subject#']) ) : // dc:subject to Atom 1.0 and RSS 2.0 categories |
| 476 |
$this->normalize_element($item['dc'], 'subject', $item, 'category', 'normalize_dc_subject'); |
| 477 |
endif; |
| 478 |
|
| 479 |
// Normalized item timestamp |
| 480 |
if (isset($item['pubdate'])) : |
| 481 |
$item_date = $item['pubdate']; |
| 482 |
elseif (isset($item['dc']['date'])) : |
| 483 |
$item_date = $item['dc']['date']; |
| 484 |
else : |
| 485 |
$item_date = null; |
| 486 |
endif; |
| 487 |
endif; |
| 488 |
|
| 489 |
if ( $item_date ) : |
| 490 |
$date_timestamp = new FeedTime($item_date); |
| 491 |
|
| 492 |
if (!$date_timestamp->failed()) : |
| 493 |
$item['date_timestamp'] = $date_timestamp->timestamp(); |
| 494 |
endif; |
| 495 |
endif; |
| 496 |
|
| 497 |
$this->items[$i] = $item; |
| 498 |
endfor; |
| 499 |
endif; |
| 500 |
} /* MagpieFromSimplePie::normalize() */ |
| 501 |
|
| 502 |
/** |
| 503 |
* MagpieFromSimplePie::normalize_author_inheritance |
| 504 |
* |
| 505 |
* @param SimplePie_Item $original |
| 506 |
* |
| 507 |
* @uses SimplePie_Item::get_authors |
| 508 |
* @uses SimplePie_Author::get_name |
| 509 |
* @uses SimplePie_Author::get_link |
| 510 |
* @uses SimplePie_Author::get_email |
| 511 |
* @uses MagpieFromSimplePie::increment_element |
| 512 |
*/ |
| 513 |
function normalize_author_inheritance (&$item, $original) { |
| 514 |
// "If an atom:entry element does not contain |
| 515 |
// atom:author elements, then the atom:author elements |
| 516 |
// of the contained atom:source element are considered |
| 517 |
// to apply. In an Atom Feed Document, the atom:author |
| 518 |
// elements of the containing atom:feed element are |
| 519 |
// considered to apply to the entry if there are no |
| 520 |
// atom:author elements in the locations described |
| 521 |
// above." <http://atompub.org/2005/08/17/draft-ietf-atompub-format-11.html#rfc.section.4.2.1> |
| 522 |
if (!isset($item["author#"])) : |
| 523 |
$authors = $original->get_authors(); |
| 524 |
foreach ($authors as $author) : |
| 525 |
$tag = $this->increment_element($item, 'author', 'atom', array()); |
| 526 |
$item[$tag] = $item["{$tag}_name"] = $author->get_name(); |
| 527 |
if ($author->get_link()) : $item["{$tag}_uri"] = $item["{$tag}_url"] = $author->get_link(); endif; |
| 528 |
if ($author->get_email()) : $item["{$tag}_email"] = $author->get_email(); endif; |
| 529 |
endforeach; |
| 530 |
endif; |
| 531 |
} /* MagpieFromSimplePie::normalize_author_inheritance() */ |
| 532 |
|
| 533 |
/** |
| 534 |
* MagpieFromSimplePie::normalize_element |
| 535 |
* Simplify the logic for normalize(). Makes sure that count of elements |
| 536 |
* and each of multiple elements is normalized properly. If you need to |
| 537 |
* mess with things like attributes or change formats or the like, pass |
| 538 |
* it a callback to handle each element. |
| 539 |
* |
| 540 |
* @param array &$source |
| 541 |
* @param string $from |
| 542 |
* @param array &$dest |
| 543 |
* @param string $to |
| 544 |
* @param mixed $via |
| 545 |
*/ |
| 546 |
function normalize_element (&$source, $from, &$dest, $to, $via = NULL) { |
| 547 |
if (isset($source[$from]) or isset($source["{$from}#"])) : |
| 548 |
if (isset($source["{$from}#"])) : |
| 549 |
$n = $source["{$from}#"]; |
| 550 |
$dest["{$to}#"] = $source["{$from}#"]; |
| 551 |
else : |
| 552 |
$n = 1; |
| 553 |
endif; |
| 554 |
|
| 555 |
for ($i = 1; $i <= $n; $i++) : |
| 556 |
if (isset($via) and is_callable(array($this, $via))) : // custom callback for ninja attacks |
| 557 |
$this->{$via}($source, $from, $dest, $to, $i); |
| 558 |
else : // just make it the same |
| 559 |
$from_id = $this->element_id($from, $i); |
| 560 |
$to_id = $this->element_id($to, $i); |
| 561 |
|
| 562 |
if (isset($source[$from_id])) : // Avoid PHP notice nastygrams |
| 563 |
$dest[$to_id] = $source[$from_id]; |
| 564 |
endif; |
| 565 |
endif; |
| 566 |
endfor; |
| 567 |
endif; |
| 568 |
} /* MagpieFromSimplePie::normalize_element */ |
| 569 |
|
| 570 |
/** |
| 571 |
* MagpieFromSimplePie::normalize_enclosure |
| 572 |
* |
| 573 |
* @param array &$source |
| 574 |
* @param string $from |
| 575 |
* @param array &$dest |
| 576 |
* @param string $to |
| 577 |
* @param int $i |
| 578 |
* |
| 579 |
* @uses MagpieFromSimplePie::element_id |
| 580 |
*/ |
| 581 |
function normalize_enclosure (&$source, $from, &$dest, $to, $i) { |
| 582 |
$id_from = $this->element_id($from, $i); |
| 583 |
$id_to = $this->element_id($to, $i); |
| 584 |
if (isset($source["{$id_from}@"])) : |
| 585 |
foreach (explode(',', $source["{$id_from}@"]) as $attr) : |
| 586 |
if ($from=='link_enclosure' and $attr=='href') : // from Atom |
| 587 |
$dest["{$id_to}@url"] = $source["{$id_from}@{$attr}"]; |
| 588 |
$dest["{$id_to}"] = $source["{$id_from}@{$attr}"]; |
| 589 |
elseif ($from=='enclosure' and $attr=='url') : // from RSS |
| 590 |
$dest["{$id_to}@href"] = $source["{$id_from}@{$attr}"]; |
| 591 |
$dest["{$id_to}"] = $source["{$id_from}@{$attr}"]; |
| 592 |
else : |
| 593 |
$dest["{$id_to}@{$attr}"] = $source["{$id_from}@{$attr}"]; |
| 594 |
endif; |
| 595 |
endforeach; |
| 596 |
endif; |
| 597 |
} /* MagpieFromSimplePie::normalize_enclosure */ |
| 598 |
|
| 599 |
/** |
| 600 |
* MagpieFromSimplePie::normalize_atom_person |
| 601 |
* |
| 602 |
* @param array &$source |
| 603 |
* @param string $person |
| 604 |
* @param array &$dest |
| 605 |
* @param string $to |
| 606 |
* @param int $i |
| 607 |
* |
| 608 |
* |
| 609 |
* @uses MagpieFromSimplePie::element_id |
| 610 |
*/ |
| 611 |
function normalize_atom_person (&$source, $person, &$dest, $to, $i) { |
| 612 |
$id = $this->element_id($person, $i); |
| 613 |
$id_to = $this->element_id($to, $i); |
| 614 |
|
| 615 |
// Atom 0.3 <=> Atom 1.0 |
| 616 |
if ($this->feed_version() >= 1.0) : |
| 617 |
$used = 'uri'; $norm = 'url'; |
| 618 |
else : |
| 619 |
$used = 'url'; $norm = 'uri'; |
| 620 |
endif; |
| 621 |
|
| 622 |
if (isset($source["{$id}_{$used}"])) : |
| 623 |
$dest["{$id_to}_{$norm}"] = $source["{$id}_{$used}"]; |
| 624 |
endif; |
| 625 |
|
| 626 |
// Atom to RSS 2.0 and Dublin Core |
| 627 |
// RSS 2.0 person strings should be valid e-mail addresses if possible. |
| 628 |
if (isset($source["{$id}_email"])) : |
| 629 |
$rss_author = $source["{$id}_email"]; |
| 630 |
endif; |
| 631 |
if (isset($source["{$id}_name"])) : |
| 632 |
$rss_author = $source["{$id}_name"] |
| 633 |
. (isset($rss_author) ? " <$rss_author>" : ''); |
| 634 |
endif; |
| 635 |
if (isset($rss_author)) : |
| 636 |
$source[$id] = $rss_author; // goes to top-level author or contributor |
| 637 |
$dest[$id_to] = $rss_author; // goes to dc:creator or dc:contributor |
| 638 |
endif; |
| 639 |
} /* MagpieFromSimplePie::normalize_atom_person */ |
| 640 |
|
| 641 |
/** |
| 642 |
* MagpieFromSimplePie::normalize_category: Normalize Atom 1.0 and |
| 643 |
* RSS 2.0 categories to Dublin Core... |
| 644 |
* |
| 645 |
* @param array &$source |
| 646 |
* @param string $from |
| 647 |
* @param array &$dest |
| 648 |
* @param string $to |
| 649 |
* @param int $i |
| 650 |
* |
| 651 |
* @uses MagpieFromSimplePie::element_id |
| 652 |
* @uses MagpieFromSimplePie::is_rss |
| 653 |
*/ |
| 654 |
function normalize_category (&$source, $from, &$dest, $to, $i) { |
| 655 |
$cat_id = $this->element_id($from, $i); |
| 656 |
$dc_id = $this->element_id($to, $i); |
| 657 |
|
| 658 |
// first normalize category elements: Atom 1.0 <=> RSS 2.0 |
| 659 |
if ( isset($source["{$cat_id}@term"]) ) : // category identifier |
| 660 |
$source[$cat_id] = $source["{$cat_id}@term"]; |
| 661 |
elseif ( $this->is_rss() ) : |
| 662 |
$source["{$cat_id}@term"] = $source[$cat_id]; |
| 663 |
endif; |
| 664 |
|
| 665 |
if ( isset($source["{$cat_id}@scheme"]) ) : // URI to taxonomy |
| 666 |
$source["{$cat_id}@domain"] = $source["{$cat_id}@scheme"]; |
| 667 |
elseif ( isset($source["{$cat_id}@domain"]) ) : |
| 668 |
$source["{$cat_id}@scheme"] = $source["{$cat_id}@domain"]; |
| 669 |
endif; |
| 670 |
|
| 671 |
// Now put the identifier into dc:subject |
| 672 |
$dest[$dc_id] = $source[$cat_id]; |
| 673 |
} /* MagpieFromSimplePie::normalize_category */ |
| 674 |
|
| 675 |
/** |
| 676 |
* MagpieFromSimplePie::normalize_dc_subject: Normalize Dublin Core |
| 677 |
* "subject" elements to Atom 1.0 and RSS 2.0 categories. |
| 678 |
* |
| 679 |
* @param array &$source |
| 680 |
* @param string $from |
| 681 |
* @param array &$dest |
| 682 |
* @param string $to |
| 683 |
* @param int $i |
| 684 |
* |
| 685 |
* @uses MagpieFromSimplePie::element_id |
| 686 |
*/ |
| 687 |
function normalize_dc_subject (&$source, $from, &$dest, $to, $i) { |
| 688 |
$dc_id = $this->element_id($from, $i); |
| 689 |
$cat_id = $this->element_id($to, $i); |
| 690 |
|
| 691 |
$dest[$cat_id] = $source[$dc_id]; // RSS 2.0 |
| 692 |
$dest["{$cat_id}@term"] = $source[$dc_id]; // Atom 1.0 |
| 693 |
} |
| 694 |
|
| 695 |
/** |
| 696 |
* MagpieFromSimplePie::element_id |
| 697 |
* Magic ID function for multiple elemenets. |
| 698 |
* Can be called as static MagpieRSS::element_id() |
| 699 |
* |
| 700 |
* @param string $el |
| 701 |
* @param int $counter |
| 702 |
* @return string |
| 703 |
*/ |
| 704 |
function element_id ($el, $counter) { |
| 705 |
return $el . (($counter > 1) ? '#'.$counter : ''); |
| 706 |
} /* MagpieFromSimplePie::element_id */ |
| 707 |
|
| 708 |
/** |
| 709 |
* MagpieFromSimplePie::increment_element |
| 710 |
* |
| 711 |
* @param array &$data |
| 712 |
* @param string $childTag |
| 713 |
* @param string $ns |
| 714 |
* @param array $path |
| 715 |
*/ |
| 716 |
function increment_element (&$data, $childTag, $ns, $path) { |
| 717 |
$counterIndex = strtolower(implode('_', array_merge($path, array($childTag.'#')))); |
| 718 |
if ($this->is_namespaced($ns)) : |
| 719 |
if (!isset($data[$ns])) : $data[$ns] = array(); endif; |
| 720 |
if (!isset($data[$ns][$counterIndex])) : $data[$ns][$counterIndex] = 0; endif; |
| 721 |
$data[$ns][$counterIndex] += 1; |
| 722 |
$N = $data[$ns][$counterIndex]; |
| 723 |
else : |
| 724 |
if (!isset($data[$counterIndex])) : $data[$counterIndex] = 0; endif; |
| 725 |
$data[$counterIndex] += 1; |
| 726 |
$N = $data[$counterIndex]; |
| 727 |
endif; |
| 728 |
|
| 729 |
if ($N > 1) : |
| 730 |
$childTag .= '#'.$N; |
| 731 |
endif; |
| 732 |
return $childTag; |
| 733 |
} /* MagpieFromSimplePie::increment_element */ |
| 734 |
|
| 735 |
/** |
| 736 |
* MagpieFromSimplePie::is_namespaced |
| 737 |
* |
| 738 |
* @param string $ns |
| 739 |
* @return bool |
| 740 |
* |
| 741 |
* @uses MagpieFromSimplePie::is_atom |
| 742 |
* @uses MagpieFromSimplePie::is_rdf |
| 743 |
*/ |
| 744 |
function is_namespaced ($ns, $attribute = false) { |
| 745 |
// Atom vs. RSS |
| 746 |
if ($this->is_atom()) : $root = array('', 'atom'); |
| 747 |
else : $root = array('', 'rss'); |
| 748 |
endif; |
| 749 |
|
| 750 |
// RDF formats; namespaced in attribs but not in elements |
| 751 |
if (!$attribute and $this->is_rdf()) : |
| 752 |
$root[] = 'rdf'; |
| 753 |
endif; |
| 754 |
|
| 755 |
return !in_array(strtolower($ns), $root); |
| 756 |
} /* MagpieFromSimplePie::is_namespaced */ |
| 757 |
|
| 758 |
/** |
| 759 |
* MagpieFromSimplePie::is_atom |
| 760 |
* |
| 761 |
* @return bool |
| 762 |
*/ |
| 763 |
function is_atom () { |
| 764 |
return $this->pie->get_type() & SIMPLEPIE_TYPE_ATOM_ALL; |
| 765 |
} /* MagpieFromSimplePie::increment_element */ |
| 766 |
|
| 767 |
/** |
| 768 |
* MagpieFromSimplePie::is_rss |
| 769 |
* |
| 770 |
* @return bool |
| 771 |
*/ |
| 772 |
function is_rss () { |
| 773 |
return $this->pie->get_type() & SIMPLEPIE_TYPE_RSS_ALL; |
| 774 |
} /* MagpieFromSimplePie::is_rss */ |
| 775 |
|
| 776 |
/** |
| 777 |
* MagpieFromSimplePie::is_rdf |
| 778 |
* |
| 779 |
* @return bool |
| 780 |
*/ |
| 781 |
function is_rdf () { |
| 782 |
return $this->pie->get_type() & SIMPLEPIE_TYPE_RSS_RDF; |
| 783 |
} /* MagpieFromSimplePie::is_rdf */ |
| 784 |
|
| 785 |
/** |
| 786 |
* MagpieFromSimplePie::feed_version |
| 787 |
* |
| 788 |
* @return float |
| 789 |
*/ |
| 790 |
function feed_version () { |
| 791 |
$map = array ( |
| 792 |
SIMPLEPIE_TYPE_ATOM_10 => 1.0, |
| 793 |
SIMPLEPIE_TYPE_ATOM_03 => 0.3, |
| 794 |
SIMPLEPIE_TYPE_RSS_090 => 0.90, |
| 795 |
SIMPLEPIE_TYPE_RSS_091 => 0.91, |
| 796 |
SIMPLEPIE_TYPE_RSS_092 => 0.92, |
| 797 |
SIMPLEPIE_TYPE_RSS_093 => 0.93, |
| 798 |
SIMPLEPIE_TYPE_RSS_094 => 0.94, |
| 799 |
SIMPLEPIE_TYPE_RSS_10 => 1.0, |
| 800 |
SIMPLEPIE_TYPE_RSS_20 => 2.0, |
| 801 |
); |
| 802 |
|
| 803 |
$ret = NULL; $type = $this->pie->get_type(); |
| 804 |
foreach ($map as $flag => $version) : |
| 805 |
if ($type & $flag) : |
| 806 |
$ret = $version; |
| 807 |
break; |
| 808 |
endif; |
| 809 |
endforeach; |
| 810 |
return $ret; |
| 811 |
} /* MagpieFromSimplePie::feed_version */ |
| 812 |
|
| 813 |
} /* class MagpieFromSimplePie */ |
| 814 |
|
| 815 |
|
