diff options
Diffstat (limited to 'utility/faviconfetcher.php')
| -rw-r--r-- | utility/faviconfetcher.php | 230 |
1 files changed, 115 insertions, 115 deletions
diff --git a/utility/faviconfetcher.php b/utility/faviconfetcher.php index 850a7f576..b837db91c 100644 --- a/utility/faviconfetcher.php +++ b/utility/faviconfetcher.php @@ -18,16 +18,16 @@ use \ZendXml\Security; class FaviconFetcher { - private $apiFactory; + private $apiFactory; - /** - * Inject a factory to build a simplepie file object. This is needed because - * the file object contains logic in its constructor which makes it - * impossible to inject and test - */ - public function __construct(SimplePieAPIFactory $apiFactory) { - $this->apiFactory = $apiFactory; - } + /** + * Inject a factory to build a simplepie file object. This is needed because + * the file object contains logic in its constructor which makes it + * impossible to inject and test + */ + public function __construct(SimplePieAPIFactory $apiFactory) { + $this->apiFactory = $apiFactory; + } /** @@ -36,129 +36,129 @@ class FaviconFetcher { * @param string|null $url the url where to fetch it from * @return null|string */ - public function fetch($url) { - try { - $url = $this->buildURL($url); - } catch (NoValidUrlException $e) { - return null; - } - - $faviconUrl = $this->extractFromPage($url); - - // check the url for a valid image - if($faviconUrl && $this->isImage($faviconUrl)) { - return $faviconUrl; - } elseif ($url) { - $base = new \Net_URL2($url); - $faviconUrl = (string) $base->resolve('/favicon.ico'); - - if($this->isImage($faviconUrl)) { - return $faviconUrl; - } - } - - return null; - } - - /** - * Get the attribute if its a DOMElement, otherwise return null - */ - private function getAttribute($item, $name) { - // used to fix scrutinizer errors - if ($item instanceof \DOMElement) { - return $item->getAttribute($name); - } else { - return null; - } - } - - - /** - * Tries to get a favicon from a page - * @param string $url the url to the page - * @return string the full url to the page - */ - protected function extractFromPage($url) { - if(!$url) { - return null; - } - - $file = $this->getFile($url); + public function fetch($url) { + try { + $url = $this->buildURL($url); + } catch (NoValidUrlException $e) { + return null; + } + + $faviconUrl = $this->extractFromPage($url); + + // check the url for a valid image + if($faviconUrl && $this->isImage($faviconUrl)) { + return $faviconUrl; + } elseif ($url) { + $base = new \Net_URL2($url); + $faviconUrl = (string) $base->resolve('/favicon.ico'); + + if($this->isImage($faviconUrl)) { + return $faviconUrl; + } + } + + return null; + } + + /** + * Get the attribute if its a DOMElement, otherwise return null + */ + private function getAttribute($item, $name) { + // used to fix scrutinizer errors + if ($item instanceof \DOMElement) { + return $item->getAttribute($name); + } else { + return null; + } + } + + + /** + * Tries to get a favicon from a page + * @param string $url the url to the page + * @return string the full url to the page + */ + protected function extractFromPage($url) { + if(!$url) { + return null; + } + + $file = $this->getFile($url); /** @noinspection PhpUndefinedFieldInspection */ if($file->body !== '') { - $dom = new \DOMDocument(); + $dom = new \DOMDocument(); - Security::scan($file->body, $dom, function ($xml, $dom) { - return @$dom->loadHTML($xml, LIBXML_NONET); - }); + Security::scan($file->body, $dom, function ($xml, $dom) { + return @$dom->loadHTML($xml, LIBXML_NONET); + }); - if($dom) { - $xpath = new \DOMXpath($dom); - $elements = $xpath->query("//link[contains(@rel, 'icon')]"); + if($dom) { + $xpath = new \DOMXpath($dom); + $elements = $xpath->query("//link[contains(@rel, 'icon')]"); - if ($elements->length > 0) { + if ($elements->length > 0) { /** @noinspection PhpUndefinedMethodInspection */ $iconPath = $this->getAttribute($elements->item(0), 'href'); $base = new \Net_URL2($url); - $absPath = (string) $base->resolve($iconPath, $url); - return $absPath; - } - } - } + $absPath = (string) $base->resolve($iconPath, $url); + return $absPath; + } + } + } return null; - } + } - private function getFile($url) { - return $this->apiFactory->getFile( - $url, 10, 5, null, 'Mozilla/5.0 AppleWebKit' - ); - } + private function getFile($url) { + return $this->apiFactory->getFile( + $url, 10, 5, null, 'Mozilla/5.0 AppleWebKit' + ); + } - /** - * Test if the file is an image - * @param string $url the url to the file - * @return bool true if image - */ - protected function isImage($url) { - // check for empty urls - if(!$url) { - return false; - } + /** + * Test if the file is an image + * @param string $url the url to the file + * @return bool true if image + */ + protected function isImage($url) { + // check for empty urls + if(!$url) { + return false; + } - $file = $this->getFile($url); + $file = $this->getFile($url); /** @noinspection PhpParamsInspection */ $sniffer = new \SimplePie_Content_Type_Sniffer($file); - return $sniffer->image() !== false; - } - - - /** - * Get HTTP or HTTPS addresses from an incomplete URL - * @param string $url the url that should be built - * @return string a string containing the http or https address - * @throws NoValidUrlException when no valid url can be returned - */ - protected function buildURL($url) { - // trim the right / from the url - $url = trim($url); - $url = rtrim($url, '/'); - - // check for http:// or https:// and validate URL - if (strpos($url, 'http://') === 0 || strpos($url, 'https://') === 0) { - if (filter_var($url, FILTER_VALIDATE_URL)) { - return $url; - } - } elseif (filter_var("http://" . $url, FILTER_VALIDATE_URL)) { - // maybe $url was something like www.example.com - return 'http://' . $url; - } - - // no valid URL was passed in or could be built from $url - throw new NoValidUrlException(); - } + return $sniffer->image() !== false; + } + + + /** + * Get HTTP or HTTPS addresses from an incomplete URL + * @param string $url the url that should be built + * @return string a string containing the http or https address + * @throws NoValidUrlException when no valid url can be returned + */ + protected function buildURL($url) { + // trim the right / from the url + $url = trim($url); + $url = rtrim($url, '/'); + + // check for http:// or https:// and validate URL + if (strpos($url, 'http://') === 0 || strpos($url, 'https://') === 0) { + if (filter_var($url, FILTER_VALIDATE_URL)) { + return $url; + } + } elseif (filter_var("http://" . $url, FILTER_VALIDATE_URL)) { + // maybe $url was something like www.example.com + return 'http://' . $url; + } + + // no valid URL was passed in or could be built from $url + throw new NoValidUrlException(); + } } |