]> git.mxchange.org Git - friendica.git/blobdiff - src/Util/ParseUrl.php
Merge pull request #12679 from nupplaphil/feat/reduce_config_dependency
[friendica.git] / src / Util / ParseUrl.php
index 2763f56abf52aefc8090779b7fca8090906478ab..9d19a4ebac9e02aade552216f4bbfc23f9727f21 100644 (file)
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2022, the Friendica project
+ * @copyright Copyright (C) 2010-2023, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -24,11 +24,14 @@ namespace Friendica\Util;
 use DOMDocument;
 use DOMXPath;
 use Friendica\Content\OEmbed;
+use Friendica\Content\Text\HTML;
+use Friendica\Protocol\HTTP\MediaType;
 use Friendica\Core\Hook;
 use Friendica\Core\Logger;
 use Friendica\Database\Database;
 use Friendica\Database\DBA;
 use Friendica\DI;
+use Friendica\Network\HTTPClient\Client\HttpClientAccept;
 use Friendica\Network\HTTPException;
 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
 
@@ -54,25 +57,34 @@ class ParseUrl
 
        /**
         * Fetch the content type of the given url
-        * @param string $url URL of the page
+        * @param string $url    URL of the page
+        * @param string $accept content-type to accept
+        * @param int    $timeout
         * @return array content type
         */
-       public static function getContentType(string $url)
+       public static function getContentType(string $url, string $accept = HttpClientAccept::DEFAULT, int $timeout = 0): array
        {
-               $curlResult = DI::httpClient()->head($url);
+               if (!empty($timeout)) {
+                       $options = [HttpClientOptions::TIMEOUT => $timeout];
+               } else {
+                       $options = [];
+               }
+
+               $curlResult = DI::httpClient()->head($url, array_merge([HttpClientOptions::ACCEPT_CONTENT => $accept], $options));
 
-               // Workaround for systems that can't handle a HEAD request
-               if (!$curlResult->isSuccess() && ($curlResult->getReturnCode() == 405)) {
-                       $curlResult = DI::httpClient()->get($url, [HttpClientOptions::CONTENT_LENGTH => 1000000]);
+               // Workaround for systems that can't handle a HEAD request. Don't retry on timeouts.
+               if (!$curlResult->isSuccess() && ($curlResult->getReturnCode() >= 400) && !in_array($curlResult->getReturnCode(), [408, 504])) {
+                       $curlResult = DI::httpClient()->get($url, $accept, array_merge([HttpClientOptions::CONTENT_LENGTH => 1000000], $options));
                }
 
                if (!$curlResult->isSuccess()) {
+                       Logger::debug('Got HTTP Error', ['http error' => $curlResult->getReturnCode(), 'url' => $url]);
                        return [];
                }
 
                $contenttype =  $curlResult->getHeader('Content-Type')[0] ?? '';
                if (empty($contenttype)) {
-                       return [];
+                       return ['application', 'octet-stream'];
                }
 
                return explode('/', current(explode(';', $contenttype)));
@@ -98,7 +110,7 @@ class ParseUrl
         * @see   ParseUrl::getSiteinfo() for more information about scraping
         * embeddable content
         */
-       public static function getSiteinfoCached($url, $do_oembed = true): array
+       public static function getSiteinfoCached(string $url, bool $do_oembed = true): array
        {
                if (empty($url)) {
                        return [
@@ -177,7 +189,7 @@ class ParseUrl
         * </body>
         * @endverbatim
         */
-       public static function getSiteinfo($url, $do_oembed = true, $count = 1)
+       public static function getSiteinfo(string $url, bool $do_oembed = true, int $count = 1): array
        {
                if (empty($url)) {
                        return [
@@ -204,7 +216,7 @@ class ParseUrl
                ];
 
                if ($count > 10) {
-                       Logger::notice('Endless loop detected', ['url' => $url]);
+                       Logger::warning('Endless loop detected', ['url' => $url]);
                        return $siteinfo;
                }
 
@@ -220,7 +232,7 @@ class ParseUrl
                        return $siteinfo;
                }
 
-               $curlResult = DI::httpClient()->get($url, [HttpClientOptions::CONTENT_LENGTH => 1000000]);
+               $curlResult = DI::httpClient()->get($url, HttpClientAccept::HTML, [HttpClientOptions::CONTENT_LENGTH => 1000000]);
                if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
                        Logger::info('Empty body or error when fetching', ['url' => $url, 'success' => $curlResult->isSuccess(), 'code' => $curlResult->getReturnCode()]);
                        return $siteinfo;
@@ -273,25 +285,13 @@ class ParseUrl
                }
 
                $charset = '';
-               // Look for a charset, first in headers
-               // Expected form: Content-Type: text/html; charset=ISO-8859-4
-               if (preg_match('/charset=([a-z0-9-_.\/]+)/i', $curlResult->getContentType(), $matches)) {
-                       $charset = trim(trim(trim(array_pop($matches)), ';,'));
-               }
-
-               // Then in body that gets precedence
-               // Expected forms:
-               // - <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-               // - <meta charset="utf-8">
-               // - <meta charset=utf-8>
-               // - <meta charSet="utf-8">
-               // We escape <style> and <script> tags since they can contain irrelevant charset information
-               // (see https://github.com/friendica/friendica/issues/9251#issuecomment-698636806)
-               Strings::performWithEscapedBlocks($body, '#<(?:style|script).*?</(?:style|script)>#ism', function ($body) use (&$charset) {
-                       if (preg_match('/charset=["\']?([a-z0-9-_.\/]+)/i', $body, $matches)) {
-                               $charset = trim(trim(trim(array_pop($matches)), ';,'));
+               try {
+                       // Look for a charset, first in headers
+                       $mediaType = MediaType::fromContentType($curlResult->getContentType());
+                       if (isset($mediaType->parameters['charset'])) {
+                               $charset = $mediaType->parameters['charset'];
                        }
-               });
+               } catch(\InvalidArgumentException $e) {}
 
                $siteinfo['charset'] = $charset;
 
@@ -305,9 +305,15 @@ class ParseUrl
 
                $body = mb_convert_encoding($body, 'HTML-ENTITIES', 'UTF-8');
 
+               if (empty($body)) {
+                       return $siteinfo;
+               }
+
                $doc = new DOMDocument();
                @$doc->loadHTML($body);
 
+               $siteinfo['charset'] = HTML::extractCharset($doc) ?? $siteinfo['charset'];
+
                XML::deleteNode($doc, 'style');
                XML::deleteNode($doc, 'option');
                XML::deleteNode($doc, 'h1');
@@ -540,16 +546,20 @@ class ParseUrl
        {
                if (!empty($siteinfo['images'])) {
                        array_walk($siteinfo['images'], function (&$image) use ($page_url) {
-                               // According to the specifications someone could place a picture url into the content field as well.
-                               // But this doesn't seem to happen in the wild, so we don't cover it here.
+                               /*
+                                * According to the specifications someone could place a picture
+                                * URL into the content field as well. But this doesn't seem to
+                                * happen in the wild, so we don't cover it here.
+                                */
                                if (!empty($image['url'])) {
                                        $image['url'] = self::completeUrl($image['url'], $page_url);
                                        $photodata = Images::getInfoFromURLCached($image['url']);
-                                       if (!empty($photodata) && ($photodata[0] > 50) && ($photodata[1] > 50)) {
+                                       if (($photodata) && ($photodata[0] > 50) && ($photodata[1] > 50)) {
                                                $image['src'] = $image['url'];
                                                $image['width'] = $photodata[0];
                                                $image['height'] = $photodata[1];
                                                $image['contenttype'] = $photodata['mime'];
+                                               $image['blurhash'] = $photodata['blurhash'] ?? null;
                                                unset($image['url']);
                                                ksort($image);
                                        } else {
@@ -628,17 +638,19 @@ class ParseUrl
         * Convert tags from CSV to an array
         *
         * @param string $string Tags
+        *
         * @return array with formatted Hashtags
         */
-       public static function convertTagsToArray($string)
+       public static function convertTagsToArray(string $string): array
        {
                $arr_tags = str_getcsv($string);
                if (count($arr_tags)) {
                        // add the # sign to every tag
-                       array_walk($arr_tags, ["self", "arrAddHashes"]);
+                       array_walk($arr_tags, ['self', 'arrAddHashes']);
 
                        return $arr_tags;
                }
+               return [];
        }
 
        /**
@@ -648,11 +660,12 @@ class ParseUrl
         *
         * @param string $tag The pure tag name
         * @param int    $k   Counter for internal use
+        *
         * @return void
         */
-       private static function arrAddHashes(&$tag, $k)
+       private static function arrAddHashes(string &$tag, int $k)
        {
-               $tag = "#" . $tag;
+               $tag = '#' . $tag;
        }
 
        /**
@@ -669,41 +682,41 @@ class ParseUrl
         *
         * @return string The url with a scheme
         */
-       private static function completeUrl($url, $scheme)
+       private static function completeUrl(string $url, string $scheme): string
        {
                $urlarr = parse_url($url);
 
                // If the url does allready have an scheme
                // we can stop the process here
-               if (isset($urlarr["scheme"])) {
-                       return($url);
+               if (isset($urlarr['scheme'])) {
+                       return $url;
                }
 
                $schemearr = parse_url($scheme);
 
-               $complete = $schemearr["scheme"]."://".$schemearr["host"];
+               $complete = $schemearr['scheme'] . '://' . $schemearr['host'];
 
-               if (!empty($schemearr["port"])) {
-                       $complete .= ":".$schemearr["port"];
+               if (!empty($schemearr['port'])) {
+                       $complete .= ':' . $schemearr['port'];
                }
 
-               if (!empty($urlarr["path"])) {
-                       if (strpos($urlarr["path"], "/") !== 0) {
-                               $complete .= "/";
+               if (!empty($urlarr['path'])) {
+                       if (strpos($urlarr['path'], '/') !== 0) {
+                               $complete .= '/';
                        }
 
-                       $complete .= $urlarr["path"];
+                       $complete .= $urlarr['path'];
                }
 
-               if (!empty($urlarr["query"])) {
-                       $complete .= "?".$urlarr["query"];
+               if (!empty($urlarr['query'])) {
+                       $complete .= '?' . $urlarr['query'];
                }
 
-               if (!empty($urlarr["fragment"])) {
-                       $complete .= "#".$urlarr["fragment"];
+               if (!empty($urlarr['fragment'])) {
+                       $complete .= '#' . $urlarr['fragment'];
                }
 
-               return($complete);
+               return $complete;
        }
 
        /**
@@ -711,9 +724,10 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseParts(array $siteinfo, array $jsonld)
+       private static function parseParts(array $siteinfo, array $jsonld): array
        {
                if (!empty($jsonld['@graph']) && is_array($jsonld['@graph'])) {
                        foreach ($jsonld['@graph'] as $part) {
@@ -756,9 +770,10 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLd(array $siteinfo, array $jsonld)
+       private static function parseJsonLd(array $siteinfo, array $jsonld): array
        {
                $type = JsonLD::fetchElement($jsonld, '@type');
                if (empty($type)) {
@@ -849,9 +864,10 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdAuthor(array $siteinfo, array $jsonld)
+       private static function parseJsonLdAuthor(array $siteinfo, array $jsonld): array
        {
                $jsonldinfo = [];
 
@@ -933,9 +949,10 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdArticle(array $siteinfo, array $jsonld)
+       private static function parseJsonLdArticle(array $siteinfo, array $jsonld): array
        {
                $jsonldinfo = [];
 
@@ -1003,9 +1020,10 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdWebPage(array $siteinfo, array $jsonld)
+       private static function parseJsonLdWebPage(array $siteinfo, array $jsonld): array
        {
                $jsonldinfo = [];
 
@@ -1015,17 +1033,17 @@ class ParseUrl
                }
 
                $content = JsonLD::fetchElement($jsonld, 'description');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['text'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'image');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['image'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'thumbnailUrl');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['image'] = trim($content);
                }
 
@@ -1042,29 +1060,30 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdWebSite(array $siteinfo, array $jsonld)
+       private static function parseJsonLdWebSite(array $siteinfo, array $jsonld): array
        {
                $jsonldinfo = [];
 
                $content = JsonLD::fetchElement($jsonld, 'name');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_name'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'description');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_description'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'url');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_url'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'thumbnailUrl');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['image'] = trim($content);
                }
 
@@ -1080,39 +1099,42 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdWebOrganization(array $siteinfo, array $jsonld)
+       private static function parseJsonLdWebOrganization(array $siteinfo, array $jsonld): array
        {
                $jsonldinfo = [];
 
                $content = JsonLD::fetchElement($jsonld, 'name');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_name'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'description');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_description'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'url');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_url'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'logo', 'url', '@type', 'ImageObject');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_img'] = trim($content);
+               } elseif (!empty($content) && is_array($content)) {
+                       $jsonldinfo['publisher_img'] = trim($content[0]);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'brand', 'name', '@type', 'Organization');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_name'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'brand', 'url', '@type', 'Organization');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['publisher_url'] = trim($content);
                }
 
@@ -1126,19 +1148,20 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdWebPerson(array $siteinfo, array $jsonld)
+       private static function parseJsonLdWebPerson(array $siteinfo, array $jsonld): array
        {
                $jsonldinfo = [];
 
                $content = JsonLD::fetchElement($jsonld, 'name');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['author_name'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'description');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['author_description'] = trim($content);
                }
 
@@ -1148,7 +1171,7 @@ class ParseUrl
                }
 
                $content = JsonLD::fetchElement($jsonld, 'url');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $jsonldinfo['author_url'] = trim($content);
                }
 
@@ -1171,29 +1194,30 @@ class ParseUrl
         *
         * @param array $siteinfo
         * @param array $jsonld
+        *
         * @return array siteinfo
         */
-       private static function parseJsonLdMediaObject(array $siteinfo, array $jsonld, string $name)
+       private static function parseJsonLdMediaObject(array $siteinfo, array $jsonld, string $name): array
        {
                $media = [];
 
                $content = JsonLD::fetchElement($jsonld, 'caption');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['caption'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'url');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['url'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'mainEntityOfPage');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['main'] = Strings::compareLink($content, $siteinfo['url']);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'description');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['description'] = trim($content);
                }
 
@@ -1203,27 +1227,27 @@ class ParseUrl
                }
 
                $content = JsonLD::fetchElement($jsonld, 'contentUrl');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['content'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'embedUrl');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['embed'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'height');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['height'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'width');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['width'] = trim($content);
                }
 
                $content = JsonLD::fetchElement($jsonld, 'image');
-               if (!empty($content)) {
+               if (!empty($content) && is_string($content)) {
                        $media['image'] = trim($content);
                }