diff options
| author | 2017-06-03 15:18:04 +0200 | |
|---|---|---|
| committer | 2017-06-03 15:18:04 +0200 | |
| commit | fd43ee546e419fc9fbb9a3ad974d2234d94cffaa (patch) | |
| tree | 2df9fd1daf5b994d7bbde8dd46f7605e4370c268 /lib/Favicon/Favicon.php | |
| parent | be0bcfef7e38f27284ec7b377b342ba389515964 (diff) | |
| parent | 6f3653d430c86b026f8e007a276fdba2b09b61b3 (diff) | |
Merge pull request #1549 from FreshRSS/dev1.7.0
Version 1.7.0
Diffstat (limited to 'lib/Favicon/Favicon.php')
| -rw-r--r-- | lib/Favicon/Favicon.php | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/lib/Favicon/Favicon.php b/lib/Favicon/Favicon.php deleted file mode 100644 index 8571a1b95..000000000 --- a/lib/Favicon/Favicon.php +++ /dev/null @@ -1,296 +0,0 @@ -<?php - -namespace Favicon; - -class Favicon -{ - protected $url = ''; - protected $cacheDir; - protected $cacheTimeout; - protected $dataAccess; - - public function __construct($args = array()) - { - if (isset($args['url'])) { - $this->url = $args['url']; - } - - $this->cacheDir = __DIR__ . '/../../resources/cache'; - $this->dataAccess = new DataAccess(); - } - - public function cache($args = array()) { - if (isset($args['dir'])) { - $this->cacheDir = $args['dir']; - } - - if (!empty($args['timeout'])) { - $this->cacheTimeout = $args['timeout']; - } else { - $this->cacheTimeout = 0; - } - } - - public static function baseUrl($url, $path = false) - { - $return = ''; - - if (!$url = parse_url($url)) { - return FALSE; - } - - // Scheme - $scheme = isset($url['scheme']) ? strtolower($url['scheme']) : null; - if ($scheme != 'http' && $scheme != 'https') { - - return FALSE; - } - $return .= "{$scheme}://"; - - // Username and password - if (isset($url['user'])) { - $return .= $url['user']; - if (isset($url['pass'])) { - $return .= ":{$url['pass']}"; - } - $return .= '@'; - } - - // Hostname - if( !isset($url['host']) ) { - return FALSE; - } - - $return .= $url['host']; - - // Port - if (isset($url['port'])) { - $return .= ":{$url['port']}"; - } - - // Path - if( $path && isset($url['path']) ) { - $return .= $url['path']; - } - $return .= '/'; - - return $return; - } - - public function info($url) - { - if(empty($url) || $url === false) { - return false; - } - - $max_loop = 5; - - // Discover real status by following redirects. - $loop = TRUE; - while ($loop && $max_loop-- > 0) { - $headers = $this->dataAccess->retrieveHeader($url); - if (empty($headers)) { - return false; - } - $exploded = explode(' ', $headers[0]); - - if( !isset($exploded[1]) ) { - return false; - } - list(,$status) = $exploded; - - switch ($status) { - case '301': - case '302': - $url = isset($headers['location']) ? $headers['location'] : ''; - break; - default: - $loop = FALSE; - break; - } - } - - return array('status' => $status, 'url' => $url); - } - - public function endRedirect($url) { - $out = $this->info($url); - return !empty($out['url']) ? $out['url'] : false; - } - - /** - * Find remote (or cached) favicon - * @return favicon URL, false if nothing was found - **/ - public function get($url = '') - { - // URLs passed to this method take precedence. - if (!empty($url)) { - $this->url = $url; - } - - // Get the base URL without the path for clearer concatenations. - $original = rtrim($this->baseUrl($this->url, true), '/'); - $url = rtrim($this->endRedirect($this->baseUrl($this->url, false)), '/'); - - if(($favicon = $this->checkCache($url)) || ($favicon = $this->getFavicon($url))) { - $base = true; - } - elseif(($favicon = $this->checkCache($original)) || ($favicon = $this->getFavicon($original, false))) { - $base = false; - } - else - return false; - - // Save cache if necessary - $cache = $this->cacheDir . '/' . md5($base ? $url : $original); - if ($this->cacheTimeout && !file_exists($cache) || (is_writable($cache) && time() - filemtime($cache) > $this->cacheTimeout)) { - $this->dataAccess->saveCache($cache, $favicon); - } - - return $favicon; - } - - private function getFavicon($url, $checkDefault = true) { - $favicon = false; - - if(empty($url)) { - return false; - } - - // Try /favicon.ico first. - if( $checkDefault ) { - $info = $this->info("{$url}/favicon.ico"); - if ($info['status'] == '200') { - $favicon = $info['url']; - } - } - - // See if it's specified in a link tag in domain url. - if (!$favicon) { - $favicon = $this->getInPage($url); - } - - // Make sure the favicon is an absolute URL. - if( $favicon && filter_var($favicon, FILTER_VALIDATE_URL) === false ) { - $favicon = $url . '/' . $favicon; - } - - // Sometimes people lie, so check the status. - // And sometimes, it's not even an image. Sneaky bastards! - // If cacheDir isn't writable, that's not our problem - if ($favicon && is_writable($this->cacheDir) && !$this->checkImageMType($favicon)) { - $favicon = false; - } - - return $favicon; - } - - private function getInPage($url) { - $html = $this->dataAccess->retrieveUrl("{$url}/"); - preg_match('!<head.*?>.*</head>!ims', $html, $match); - - if(empty($match) || count($match) == 0) { - return false; - } - - $head = $match[0]; - - $dom = new \DOMDocument(); - // Use error supression, because the HTML might be too malformed. - if (@$dom->loadHTML($head)) { - $links = $dom->getElementsByTagName('link'); - foreach ($links as $link) { - if ($link->hasAttribute('rel') && strtolower($link->getAttribute('rel')) == 'shortcut icon') { - return $link->getAttribute('href'); - } elseif ($link->hasAttribute('rel') && strtolower($link->getAttribute('rel')) == 'icon') { - return $link->getAttribute('href'); - } elseif ($link->hasAttribute('href') && strpos($link->getAttribute('href'), 'favicon') !== FALSE) { - return $link->getAttribute('href'); - } - } - } - return false; - } - - private function checkCache($url) { - if ($this->cacheTimeout) { - $cache = $this->cacheDir . '/' . md5($url); - if (file_exists($cache) && is_readable($cache) && (time() - filemtime($cache) < $this->cacheTimeout)) { - return $this->dataAccess->readCache($cache); - } - } - return false; - } - - private function checkImageMType($url) { - $tmpFile = $this->cacheDir . '/tmp.ico'; - - $fileContent = $this->dataAccess->retrieveUrl($url); - $this->dataAccess->saveCache($tmpFile, $fileContent); - - $finfo = finfo_open(FILEINFO_MIME_TYPE); - $isImage = strpos(finfo_file($finfo, $tmpFile), 'image') !== false; - finfo_close($finfo); - - unlink($tmpFile); - - return $isImage; - } - - /** - * @return mixed - */ - public function getCacheDir() - { - return $this->cacheDir; - } - - /** - * @param mixed $cacheDir - */ - public function setCacheDir($cacheDir) - { - $this->cacheDir = $cacheDir; - } - - /** - * @return mixed - */ - public function getCacheTimeout() - { - return $this->cacheTimeout; - } - - /** - * @param mixed $cacheTimeout - */ - public function setCacheTimeout($cacheTimeout) - { - $this->cacheTimeout = $cacheTimeout; - } - - /** - * @return string - */ - public function getUrl() - { - return $this->url; - } - - /** - * @param string $url - */ - public function setUrl($url) - { - $this->url = $url; - } - - /** - * @param DataAccess $dataAccess - */ - public function setDataAccess($dataAccess) - { - $this->dataAccess = $dataAccess; - } -} |
