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<?php
class GitHubGistBridge extends BridgeAbstract {
const NAME = 'GitHubGist comment bridge';
const URI = 'https://gist.github.com';
const DESCRIPTION = 'Generates feeds for Gist comments';
const MAINTAINER = 'logmanoriginal';
const CACHE_TIMEOUT = 3600;
const PARAMETERS = array(array(
'id' => array(
'name' => 'Gist',
'type' => 'text',
'required' => true,
'title' => 'Insert Gist ID or URI',
'exampleValue' => '2646763, https://gist.github.com/2646763'
)
));
private $filename;
public function getURI() {
$id = $this->getInput('id') ?: '';
$urlpath = parse_url($id, PHP_URL_PATH);
if($urlpath) {
$components = explode('/', $urlpath);
$id = end($components);
}
return static::URI . '/' . $id;
}
public function getName() {
return $this->filename ? $this->filename . ' - ' . static::NAME : static::NAME;
}
public function collectData() {
$html = getSimpleHTMLDOM($this->getURI(),
null,
null,
true,
true,
DEFAULT_TARGET_CHARSET,
false, // Do NOT remove line breaks
DEFAULT_BR_TEXT,
DEFAULT_SPAN_TEXT)
or returnServerError('Could not request ' . $this->getURI());
$html = defaultLinkTo($html, $this->getURI());
$fileinfo = $html->find('[class="file-info"]', 0)
or returnServerError('Could not find file info!');
$this->filename = $fileinfo->plaintext;
$comments = $html->find('div[class="timeline-comment-wrapper"]');
if(is_null($comments)) { // no comments yet
return;
}
foreach($comments as $comment) {
$uri = $comment->find('a[href*=#gistcomment]', 0)
or returnServerError('Could not find comment anchor!');
$title = $comment->find('div[class="unminimized-comment"] h3[class="timeline-comment-header-text"]', 0)
or returnServerError('Could not find comment header text!');
$datetime = $comment->find('[datetime]', 0)
or returnServerError('Could not find comment datetime!');
$author = $comment->find('a.author', 0)
or returnServerError('Could not find author name!');
$message = $comment->find('[class="comment-body"]', 0)
or returnServerError('Could not find comment body!');
$item = array();
$item['uri'] = $uri->href;
$item['title'] = str_replace('commented', 'commented on', $title->plaintext);
$item['timestamp'] = strtotime($datetime->datetime);
$item['author'] = '<a href="' . $author->href . '">' . $author->plaintext . '</a>';
$item['content'] = $this->fixContent($message);
// $item['enclosures'] = array();
// $item['categories'] = array();
$this->items[] = $item;
}
}
/** Removes all unnecessary tags and adds formatting */
private function fixContent($content){
// Restore code (inside <pre />) highlighting
foreach($content->find('pre') as $pre) {
$pre->style = <<<EOD
padding: 16px;
overflow: auto;
font-size: 85%;
line-height: 1.45;
background-color: #f6f8fa;
border-radius: 3px;
word-wrap: normal;
box-sizing: border-box;
margin-bottom: 16px;
EOD;
$code = $pre->find('code', 0);
if($code) {
$code->style = <<<EOD
white-space: pre;
word-break: normal;
EOD;
}
}
// find <code /> not inside <pre /> (`inline-code`)
foreach($content->find('code') as $code) {
if($code->parent()->tag === 'pre') {
continue;
}
$code->style = <<<EOD
background-color: rgba(27,31,35,0.05);
padding: 0.2em 0.4em;
border-radius: 3px;
EOD;
}
// restore text spacing
foreach($content->find('p') as $p) {
$p->style = 'margin-bottom: 16px;';
}
// Remove unnecessary tags
$content = strip_tags(
$content->innertext,
'<p><a><img><ol><ul><li><table><tr><th><td><string><pre><code><br><hr><h>'
);
return $content;
}
}
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