You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.3 KiB
113 lines
3.3 KiB
<?php |
|
$favicons_dir = DATA_PATH . '/favicons/'; |
|
$default_favicon = PUBLIC_PATH . '/themes/icons/default_favicon.ico'; |
|
|
|
function isImgMime($content) { |
|
//Based on https://github.com/ArthurHoaro/favicon/blob/3a4f93da9bb24915b21771eb7873a21bde26f5d1/src/Favicon/Favicon.php#L311-L319 |
|
if ($content == '') { |
|
return false; |
|
} |
|
if (!extension_loaded('fileinfo')) { |
|
return true; |
|
} |
|
$isImage = true; |
|
try { |
|
$fInfo = finfo_open(FILEINFO_MIME_TYPE); |
|
$isImage = strpos(finfo_buffer($fInfo, $content), 'image') !== false; |
|
finfo_close($fInfo); |
|
} catch (Exception $e) { |
|
echo 'Caught exception: ', $e->getMessage(), "\n"; |
|
} |
|
return $isImage; |
|
} |
|
|
|
function downloadHttp(&$url, $curlOptions = array()) { |
|
prepareSyslog(); |
|
syslog(LOG_INFO, 'FreshRSS Favicon GET ' . $url); |
|
if (substr($url, 0, 2) === '//') { |
|
$url = 'https:' . $url; |
|
} |
|
if ($url == '' || filter_var($url, FILTER_VALIDATE_URL) === false) { |
|
return ''; |
|
} |
|
$ch = curl_init($url); |
|
curl_setopt_array($ch, array( |
|
CURLOPT_RETURNTRANSFER => true, |
|
CURLOPT_TIMEOUT => 15, |
|
CURLOPT_USERAGENT => FRESHRSS_USERAGENT, |
|
CURLOPT_MAXREDIRS => 10, |
|
)); |
|
if (version_compare(PHP_VERSION, '5.6.0') >= 0 || ini_get('open_basedir') == '') { |
|
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); //Keep option separated for open_basedir PHP bug 65646 |
|
} |
|
if (defined('CURLOPT_ENCODING')) { |
|
curl_setopt($ch, CURLOPT_ENCODING, ''); //Enable all encodings |
|
} |
|
curl_setopt_array($ch, $curlOptions); |
|
$response = curl_exec($ch); |
|
$info = curl_getinfo($ch); |
|
curl_close($ch); |
|
if (!empty($info['url']) && (filter_var($info['url'], FILTER_VALIDATE_URL) !== false)) { |
|
$url = $info['url']; //Possible redirect |
|
} |
|
return $info['http_code'] == 200 ? $response : ''; |
|
} |
|
|
|
function searchFavicon(&$url) { |
|
$dom = new DOMDocument(); |
|
$html = downloadHttp($url); |
|
if ($html != '' && @$dom->loadHTML($html, LIBXML_NONET | LIBXML_NOERROR | LIBXML_NOWARNING)) { |
|
$rels = array('shortcut icon', 'icon'); |
|
$links = $dom->getElementsByTagName('link'); |
|
foreach ($rels as $rel) { |
|
foreach ($links as $link) { |
|
if ($link->hasAttribute('rel') && $link->hasAttribute('href') && |
|
strtolower(trim($link->getAttribute('rel'))) === $rel) { |
|
$href = trim($link->getAttribute('href')); |
|
if (substr($href, 0, 2) === '//') { |
|
// Case of protocol-relative URLs |
|
if (preg_match('%^(https?:)//%i', $url, $matches)) { |
|
$href = $matches[1] . $href; |
|
} else { |
|
$href = 'https:' . $href; |
|
} |
|
} |
|
if (filter_var($href, FILTER_VALIDATE_URL) === false) { |
|
$href = SimplePie_IRI::absolutize($url, $href); |
|
} |
|
$favicon = downloadHttp($href, array( |
|
CURLOPT_REFERER => $url, |
|
)); |
|
if (isImgMime($favicon)) { |
|
return $favicon; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
return ''; |
|
} |
|
|
|
function download_favicon($url, $dest) { |
|
global $default_favicon; |
|
$url = trim($url); |
|
$favicon = searchFavicon($url); |
|
if ($favicon == '') { |
|
$rootUrl = preg_replace('%^(https?://[^/]+).*$%i', '$1/', $url); |
|
if ($rootUrl != $url) { |
|
$url = $rootUrl; |
|
$favicon = searchFavicon($url); |
|
} |
|
if ($favicon == '') { |
|
$link = $rootUrl . 'favicon.ico'; |
|
$favicon = downloadHttp($link, array( |
|
CURLOPT_REFERER => $url, |
|
)); |
|
if (!isImgMime($favicon)) { |
|
$favicon = ''; |
|
} |
|
} |
|
} |
|
return ($favicon != '' && file_put_contents($dest, $favicon)) || |
|
@copy($default_favicon, $dest); |
|
}
|
|
|