+<?php
+namespace phorkie;
+
+class HtmlParser
+{
+ /**
+ * Contains error message when parse() failed
+ */
+ public $error;
+
+ /**
+ * Array with keys (URL title) and values (arrays of urls)
+ * Only supported URLs are included.
+ *
+ * @var array
+ */
+ protected $arGitUrls;
+
+
+
+ /**
+ * Extract git URLs from the given URL, eventually fetching
+ * HTML and extracting URLs from there.
+ *
+ * Sets $error and $arGitUrls class variables
+ *
+ * @param string $url Git or HTTP URL
+ * @param string $html HTML content of $url
+ *
+ * @return boolean True when all went well, false in case of an error
+ * @uses $error
+ * @uses $arGitUrls
+ */
+ public function extractGitUrls($url, $html = null)
+ {
+ if ($url == '') {
+ $this->error = 'Empty fork URL';
+ return false;
+ }
+
+ $arUrl = parse_url($url);
+ $scheme = isset($arUrl['scheme']) ? $arUrl['scheme'] : '';
+
+ if ($scheme == 'https' && isset($arUrl['host'])
+ && $arUrl['host'] == 'gist.github.com'
+ ) {
+ //FIXME: title
+ $this->arGitUrls[][] = 'git://gist.github.com/'
+ . ltrim($arUrl['path'], '/') . '.git';
+ return true;
+ }
+
+ switch ($scheme) {
+ case 'git':
+ //clearly a git url
+ $this->arGitUrls = array(array($url));
+ return true;
+
+ case 'ssh':
+ //FIXME: maybe loosen this when we know how to skip the
+ //"do you trust this server" question of ssh
+ $this->error = 'ssh:// URLs are not supported';
+ return false;
+
+ case 'http':
+ case 'https':
+ return $this->extractUrlsFromHtml($url, $html);
+ }
+
+ $this->error = 'Unknown URLs scheme: ' . $scheme;
+ return false;
+ }
+
+ protected function extractUrlsFromHtml($url, $html = null)
+ {
+ //HTML is not necessarily well-formed, and Gitorious has many problems
+ // in this regard
+ //$sx = simplexml_load_file($url);
+
+ libxml_use_internal_errors(true);
+ if ($html === null) {
+ $sx = simplexml_import_dom(\DOMDocument::loadHTMLFile($url));
+ } else {
+ $sx = simplexml_import_dom(\DOMDocument::loadHTML($html));
+ }
+
+ $elems = $sx->xpath('//*[@rel="vcs-git"]');
+ $titles = $sx->xpath('/html/head/title');
+ $pageTitle = $this->cleanPageTitle((string) reset($titles));
+
+ $count = $anonymous = 0;
+ foreach ($elems as $elem) {
+ if (!isset($elem['href'])) {
+ continue;
+ }
+ $str = (string)$elem;
+ if (isset($elem['title'])) {
+ //<link href=".." rel="vcs-git" title="title" />
+ $title = (string)$elem['title'];
+ } else if ($str != '') {
+ //<a href=".." rel="vcs-git">title</a>
+ $title = $str;
+ } else if ($pageTitle != '') {
+ $title = $pageTitle;
+ } else {
+ $title = 'Unnamed repository #' . ++$anonymous;
+ }
+ $url = (string)$elem['href'];
+ if ($this->isSupported($url)) {
+ ++$count;
+ $this->arGitUrls[$title][] = $url;
+ }
+ }
+
+ if ($count > 0) {
+ return true;
+ }
+
+ $this->error = 'No git:// clone URL found';
+ return false;
+ }
+
+ public function getGitUrls()
+ {
+ return $this->arGitUrls;
+ }
+
+ /**
+ * Remove application names from HTML page titles
+ *
+ * @param string $title HTML page title
+ *
+ * @return string Cleaned HTML page title
+ */
+ protected function cleanPageTitle($title)
+ {
+ $title = trim($title);
+ if (substr($title, -9) == '- phorkie') {
+ $title = trim(substr($title, 0, -9));
+ }
+
+ return $title;
+ }
+
+ public function isSupported($url)
+ {
+ $scheme = parse_url($url, PHP_URL_SCHEME);
+ return $scheme == 'git'
+ || $scheme == 'http' || $scheme == 'https';
+ }
+
+}
+?>
git.cweiske.de / phorkie.git / commitdiff