Rss-Bridge/bridges/DanbooruBridge.php
logmanoriginal ee28b124e0 [DanbooruBridge] Fix bridge
This commit fixes an issue caused by self closing tags not supported
by simplehtmldom (<source>).

Adds a monkey patch to extend simplehtmldom with the ability to detect
that particular tag. Most of the code added is copied directly from
simplehtmldom (see vendor/simplehtmldom) with adjustments to account
for RSS-Bridge formatting.

Related to: https://sourceforge.net/p/simplehtmldom/bugs/83/

Notice: The tag itself is valid according to Mozilla:

The HTML <picture> element serves as a container for zero or more
<source> elements and one <img> element to provide versions of an
image for different display device scenarios. The browser will
consider each of the child <source> elements and select one
corresponding to the best match found; if no matches are found
among the <source> elements, the file specified by the <img>
element's src attribute is selected. The selected image is then
presented in the space occupied by the <img> element.

-- https://developer.mozilla.org/en-US/docs/Web/HTML/Element/picture

References #753
2018-08-09 21:55:43 +02:00

136 lines
3.7 KiB
PHP

<?php
class DanbooruBridge extends BridgeAbstract {
const MAINTAINER = 'mitsukarenai, logmanoriginal';
const NAME = 'Danbooru';
const URI = 'http://donmai.us/';
const CACHE_TIMEOUT = 1800; // 30min
const DESCRIPTION = 'Returns images from given page';
const PARAMETERS = array(
'global' => array(
'p' => array(
'name' => 'page',
'defaultValue' => 1,
'type' => 'number'
),
't' => array(
'name' => 'tags'
)
),
0 => array()
);
const PATHTODATA = 'article';
const IDATTRIBUTE = 'data-id';
const TAGATTRIBUTE = 'alt';
protected function getFullURI(){
return $this->getURI()
. 'posts?&page=' . $this->getInput('p')
. '&tags=' . urlencode($this->getInput('t'));
}
protected function getTags($element){
return $element->find('img', 0)->getAttribute(static::TAGATTRIBUTE);
}
protected function getItemFromElement($element){
// Fix links
defaultLinkTo($element, $this->getURI());
$item = array();
$item['uri'] = $element->find('a', 0)->href;
$item['postid'] = (int)preg_replace('/[^0-9]/', '', $element->getAttribute(static::IDATTRIBUTE));
$item['timestamp'] = time();
$thumbnailUri = $element->find('img', 0)->src;
$item['tags'] = $this->getTags($element);
$item['title'] = $this->getName() . ' | ' . $item['postid'];
$item['content'] = '<a href="'
. $item['uri']
. '"><img src="'
. $thumbnailUri
. '" /></a><br>Tags: '
. $item['tags'];
return $item;
}
public function collectData(){
$content = getContents($this->getFullURI())
or returnServerError('Could not request ' . $this->getName());
$html = Fix_Simple_Html_Dom::str_get_html($content);
foreach($html->find(static::PATHTODATA) as $element) {
$this->items[] = $this->getItemFromElement($element);
}
}
}
/**
* This class is a monkey patch to 'extend' simplehtmldom to recognize <source>
* tags (HTML5) as self closing tag. This patch should be removed once
* simplehtmldom was fixed. This seems to be a issue with more tags:
* https://sourceforge.net/p/simplehtmldom/bugs/83/
*
* The tag itself is valid according to Mozilla:
*
* The HTML <picture> element serves as a container for zero or more <source>
* elements and one <img> element to provide versions of an image for different
* display device scenarios. The browser will consider each of the child <source>
* elements and select one corresponding to the best match found; if no matches
* are found among the <source> elements, the file specified by the <img>
* element's src attribute is selected. The selected image is then presented in
* the space occupied by the <img> element.
*
* -- https://developer.mozilla.org/en-US/docs/Web/HTML/Element/picture
*
* Notice: This class uses parts of the original simplehtmldom, adjusted to pass
* the guidelines of RSS-Bridge (formatting)
*/
final class Fix_Simple_Html_Dom extends simple_html_dom {
/* copy from simple_html_dom, added 'source' at the end */
protected $self_closing_tags = array(
'img' => 1,
'br' => 1,
'input' => 1,
'meta' => 1,
'link' => 1,
'hr' => 1,
'base' => 1,
'embed' => 1,
'spacer' => 1,
'source' => 1
);
/* copy from simplehtmldom, changed 'simple_html_dom' to 'Fix_Simple_Html_Dom' */
public static function str_get_html($str,
$lowercase = true,
$forceTagsClosed = true,
$target_charset = DEFAULT_TARGET_CHARSET,
$stripRN = true,
$defaultBRText = DEFAULT_BR_TEXT,
$defaultSpanText = DEFAULT_SPAN_TEXT)
{
$dom = new Fix_Simple_Html_Dom(null,
$lowercase,
$forceTagsClosed,
$target_charset,
$stripRN,
$defaultBRText,
$defaultSpanText);
if (empty($str) || strlen($str) > MAX_FILE_SIZE) {
$dom->clear();
return false;
}
$dom->load($str, $lowercase, $stripRN);
return $dom;
}
}