rss-bridge/bridges/GithubIssueBridge.php

290 lines
7.6 KiB
PHP

<?php
class GithubIssueBridge extends BridgeAbstract {
const MAINTAINER = 'Pierre Mazière';
const NAME = 'Github Issue';
const URI = 'https://github.com/';
const CACHE_TIMEOUT = 600; // 10min
const DESCRIPTION = 'Returns the issues or comments of an issue of a github project';
const PARAMETERS = array(
'global' => array(
'u' => array(
'name' => 'User name',
'exampleValue' => 'RSS-Bridge',
'required' => true
),
'p' => array(
'name' => 'Project name',
'exampleValue' => 'rss-bridge',
'required' => true
)
),
'Project Issues' => array(
'c' => array(
'name' => 'Show Issues Comments',
'type' => 'checkbox'
)
),
'Issue comments' => array(
'i' => array(
'name' => 'Issue number',
'type' => 'number',
'exampleValue' => '2099',
'required' => true
)
)
);
// Allows generalization with GithubPullRequestBridge
const BRIDGE_OPTIONS = array(0 => 'Project Issues', 1 => 'Issue comments');
const URL_PATH = 'issues';
const SEARCH_QUERY_PATH = 'issues';
const SEARCH_QUERY = '?q=is%3Aissue+sort%3Aupdated-desc';
public function getName(){
$name = $this->getInput('u') . '/' . $this->getInput('p');
switch($this->queriedContext) {
case static::BRIDGE_OPTIONS[0]: // Project Issues
$prefix = static::NAME . 's for ';
if($this->getInput('c')) {
$prefix = static::NAME . 's comments for ';
}
$name = $prefix . $name;
break;
case static::BRIDGE_OPTIONS[1]: // Issue comments
$name = static::NAME . ' ' . $name . ' #' . $this->getInput('i');
break;
default: return parent::getName();
}
return $name;
}
public function getURI() {
if(null !== $this->getInput('u') && null !== $this->getInput('p')) {
$uri = static::URI . $this->getInput('u') . '/'
. $this->getInput('p') . '/';
if($this->queriedContext === static::BRIDGE_OPTIONS[1]) {
$uri .= static::URL_PATH . '/' . $this->getInput('i');
} else {
$uri .= static::SEARCH_QUERY_PATH . static::SEARCH_QUERY;
}
return $uri;
}
return parent::getURI();
}
private function buildGitHubIssueCommentUri($issue_number, $comment_id) {
// https://github.com/<user>/<project>/issues/<issue-number>#<id>
return static::URI
. $this->getInput('u')
. '/'
. $this->getInput('p')
. '/' . static::URL_PATH . '/'
. $issue_number
. '#'
. $comment_id;
}
private function extractIssueEvent($issueNbr, $title, $comment) {
$uri = $this->buildGitHubIssueCommentUri($issueNbr, $comment->id);
$author = $comment->find('.author, .avatar', 0);
if ($author) {
$author = trim($author->href, '/');
} else {
$author = '';
}
$title .= ' / '
. trim(str_replace(
array('octicon','-'), array(''),
$comment->find('.octicon', 0)->getAttribute('class')
));
$time = $comment->find('relative-time', 0);
if ($time === null) {
return;
}
foreach($comment->find('.Details-content--hidden, .btn') as $el) {
$el->innertext = '';
}
$content = $comment->plaintext;
$item = array();
$item['author'] = $author;
$item['uri'] = $uri;
$item['title'] = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
$item['timestamp'] = strtotime($time->getAttribute('datetime'));
$item['content'] = $content;
return $item;
}
private function extractIssueComment($issueNbr, $title, $comment) {
$uri = $this->buildGitHubIssueCommentUri($issueNbr, $comment->id);
$author = $comment->find('.author', 0)->plaintext;
$title .= ' / ' . trim(
$comment->find('.timeline-comment-header-text', 0)->plaintext
);
$time = $comment->find('relative-time', 0);
if ($time === null) {
return;
}
$content = $comment->find('.comment-body', 0)->innertext;
$item = array();
$item['author'] = $author;
$item['uri'] = $uri;
$item['title'] = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
$item['timestamp'] = strtotime($time->getAttribute('datetime'));
$item['content'] = $content;
return $item;
}
private function extractIssueComments($issue) {
$items = array();
$title = $issue->find('.gh-header-title', 0)->plaintext;
$issueNbr = trim(
substr($issue->find('.gh-header-number', 0)->plaintext, 1)
);
$comments = $issue->find(
'.comment, .TimelineItem-badge'
);
foreach($comments as $comment) {
if ($comment->hasClass('comment')) {
$comment = $comment->parent;
$item = $this->extractIssueComment($issueNbr, $title, $comment);
if ($item !== null) {
$items[] = $item;
}
continue;
} else {
$comment = $comment->parent;
$item = $this->extractIssueEvent($issueNbr, $title, $comment);
if ($item !== null) {
$items[] = $item;
}
}
}
return $items;
}
public function collectData() {
$html = getSimpleHTMLDOM($this->getURI());
switch($this->queriedContext) {
case static::BRIDGE_OPTIONS[1]: // Issue comments
$this->items = $this->extractIssueComments($html);
break;
case static::BRIDGE_OPTIONS[0]: // Project Issues
foreach($html->find('.js-active-navigation-container .js-navigation-item') as $issue) {
$info = $issue->find('.opened-by', 0);
preg_match('/\/([0-9]+)$/', $issue->find('a', 0)->href, $match);
$issueNbr = $match[1];
$item = array();
$item['content'] = '';
if($this->getInput('c')) {
$uri = static::URI . $this->getInput('u')
. '/' . $this->getInput('p') . '/' . static::URL_PATH . '/' . $issueNbr;
$issue = getSimpleHTMLDOMCached($uri, static::CACHE_TIMEOUT);
if($issue) {
$this->items = array_merge(
$this->items,
$this->extractIssueComments($issue)
);
continue;
}
$item['content'] = 'Can not extract comments from ' . $uri;
}
$item['author'] = $info->find('a', 0)->plaintext;
$item['timestamp'] = strtotime(
$info->find('relative-time', 0)->getAttribute('datetime')
);
$item['title'] = html_entity_decode(
$issue->find('.js-navigation-open', 0)->plaintext,
ENT_QUOTES,
'UTF-8'
);
$comment_count = 0;
if($span = $issue->find('a[aria-label*="comment"] span', 0)) {
$comment_count = $span->plaintext;
}
$item['content'] .= "\n" . 'Comments: ' . $comment_count;
$item['uri'] = self::URI
. trim($issue->find('.js-navigation-open', 0)->getAttribute('href'), '/');
$this->items[] = $item;
}
break;
}
array_walk($this->items, function(&$item){
$item['content'] = preg_replace('/\s+/', ' ', $item['content']);
$item['content'] = str_replace(
'href="/',
'href="' . static::URI,
$item['content']
);
$item['content'] = str_replace(
'href="#',
'href="' . substr($item['uri'], 0, strpos($item['uri'], '#') + 1),
$item['content']
);
$item['title'] = preg_replace('/\s+/', ' ', $item['title']);
});
}
public function detectParameters($url) {
if(filter_var($url, FILTER_VALIDATE_URL, FILTER_FLAG_PATH_REQUIRED) === false
|| strpos($url, self::URI) !== 0) {
return null;
}
$url_components = parse_url($url);
$path_segments = array_values(array_filter(explode('/', $url_components['path'])));
switch(count($path_segments)) {
case 2: { // Project issues
list($user, $project) = $path_segments;
$show_comments = 'off';
} break;
case 3: { // Project issues with issue comments
if($path_segments[2] !== static::URL_PATH) {
return null;
}
list($user, $project) = $path_segments;
$show_comments = 'on';
} break;
case 4: { // Issue comments
list($user, $project, /* issues */, $issue) = $path_segments;
} break;
default: {
return null;
}
}
return array(
'u' => $user,
'p' => $project,
'c' => isset($show_comments) ? $show_comments : null,
'i' => isset($issue) ? $issue : null,
);
}
}