]> git.mxchange.org Git - friendica.git/blobdiff - src/Util/ParseUrl.php
Merge branch '2019.01-rc' into bug/6334-escape-get-app
[friendica.git] / src / Util / ParseUrl.php
index 3be372767bd7b3fc1e53023dcb0011c064be20e6..70c5279cc84a42ce9314a202375cb2f1382c6fd5 100644 (file)
@@ -9,10 +9,10 @@ use DOMDocument;
 use DOMXPath;
 use Friendica\Content\OEmbed;
 use Friendica\Core\Addon;
+use Friendica\Core\Logger;
 use Friendica\Database\DBA;
 use Friendica\Object\Image;
-
-require_once 'include/dba.php';
+use Friendica\Util\Strings;
 
 /**
  * @brief Class with methods for extracting certain content from an url
@@ -48,7 +48,7 @@ class ParseUrl
                }
 
                $parsed_url = DBA::selectFirst('parsed_url', ['content'],
-                       ['url' => normalise_link($url), 'guessing' => !$no_guessing, 'oembed' => $do_oembed]
+                       ['url' => Strings::normaliseLink($url), 'guessing' => !$no_guessing, 'oembed' => $do_oembed]
                );
                if (!empty($parsed_url['content'])) {
                        $data = unserialize($parsed_url['content']);
@@ -60,7 +60,7 @@ class ParseUrl
                DBA::insert(
                        'parsed_url',
                        [
-                               'url' => normalise_link($url), 'guessing' => !$no_guessing,
+                               'url' => Strings::normaliseLink($url), 'guessing' => !$no_guessing,
                                'oembed' => $do_oembed, 'content' => serialize($data),
                                'created' => DateTimeFormat::utcNow()
                        ],
@@ -111,20 +111,20 @@ class ParseUrl
         */
        public static function getSiteinfo($url, $no_guessing = false, $do_oembed = true, $count = 1)
        {
-               $a = get_app();
+               $a = \get_app();
 
                $siteinfo = [];
 
                // Check if the URL does contain a scheme
                $scheme = parse_url($url, PHP_URL_SCHEME);
 
-               if ($scheme == "") {
-                       $url = "http://".trim($url, "/");
+               if ($scheme == '') {
+                       $url = 'http://' . trim($url, '/');
                }
 
                if ($count > 10) {
-                       logger("parseurl_getsiteinfo: Endless loop detected for ".$url, LOGGER_DEBUG);
-                       return($siteinfo);
+                       Logger::log('Endless loop detected for ' . $url, Logger::DEBUG);
+                       return $siteinfo;
                }
 
                $url = trim($url, "'");
@@ -132,220 +132,222 @@ class ParseUrl
 
                $url = Network::stripTrackingQueryParams($url);
 
-               $siteinfo["url"] = $url;
-               $siteinfo["type"] = "link";
+               $siteinfo['url'] = $url;
+               $siteinfo['type'] = 'link';
 
-               $data = Network::curl($url);
-               if (!$data['success']) {
-                       return($siteinfo);
+               $curlResult = Network::curl($url);
+               if (!$curlResult->isSuccess()) {
+                       return $siteinfo;
                }
 
                // If the file is too large then exit
-               if ($data["info"]["download_content_length"] > 1000000) {
-                       return($siteinfo);
+               if (defaults($curlResult->getInfo(), 'download_content_length', 0) > 1000000) {
+                       return $siteinfo;
                }
 
                // If it isn't a HTML file then exit
-               if (($data["info"]["content_type"] != "") && !strstr(strtolower($data["info"]["content_type"]), "html")) {
-                       return($siteinfo);
+               if (($curlResult->getContentType() != '') && !strstr(strtolower($curlResult->getContentType()), 'html')) {
+                       return $siteinfo;
                }
 
-               $header = $data["header"];
-               $body = $data["body"];
+               $header = $curlResult->getHeader();
+               $body = $curlResult->getBody();
 
                if ($do_oembed) {
                        $oembed_data = OEmbed::fetchURL($url);
 
                        if (!empty($oembed_data->type)) {
-                               if (!in_array($oembed_data->type, ["error", "rich", ""])) {
-                                       $siteinfo["type"] = $oembed_data->type;
+                               if (!in_array($oembed_data->type, ['error', 'rich', ''])) {
+                                       $siteinfo['type'] = $oembed_data->type;
                                }
 
-                               if (($oembed_data->type == "link") && ($siteinfo["type"] != "photo")) {
+                               // See https://github.com/friendica/friendica/pull/5763#discussion_r217913178
+                               if ($siteinfo['type'] != 'photo') {
                                        if (isset($oembed_data->title)) {
-                                               $siteinfo["title"] = trim($oembed_data->title);
+                                               $siteinfo['title'] = trim($oembed_data->title);
                                        }
                                        if (isset($oembed_data->description)) {
-                                               $siteinfo["text"] = trim($oembed_data->description);
+                                               $siteinfo['text'] = trim($oembed_data->description);
                                        }
                                        if (isset($oembed_data->thumbnail_url)) {
-                                               $siteinfo["image"] = $oembed_data->thumbnail_url;
+                                               $siteinfo['image'] = $oembed_data->thumbnail_url;
                                        }
                                }
                        }
                }
 
                // Fetch the first mentioned charset. Can be in body or header
-               $charset = "";
-               if (preg_match('/charset=(.*?)['."'".'"\s\n]/', $header, $matches)) {
+               $charset = '';
+               if (preg_match('/charset=(.*?)[\'"\s\n]/', $header, $matches)) {
                        $charset = trim(trim(trim(array_pop($matches)), ';,'));
                }
 
-               if ($charset == "") {
-                       $charset = "utf-8";
-               }
+               if ($charset && strtoupper($charset) != 'UTF-8') {
+                       // See https://github.com/friendica/friendica/issues/5470#issuecomment-418351211
+                       $charset = str_ireplace('latin-1', 'latin1', $charset);
 
-               if (($charset != "") && (strtoupper($charset) != "UTF-8")) {
-                       logger("parseurl_getsiteinfo: detected charset ".$charset, LOGGER_DEBUG);
-                       //$body = mb_convert_encoding($body, "UTF-8", $charset);
-                       $body = iconv($charset, "UTF-8//TRANSLIT", $body);
+                       Logger::log('detected charset ' . $charset, Logger::DEBUG);
+                       $body = iconv($charset, 'UTF-8//TRANSLIT', $body);
                }
 
-               $body = mb_convert_encoding($body, 'HTML-ENTITIES', "UTF-8");
+               $body = mb_convert_encoding($body, 'HTML-ENTITIES', 'UTF-8');
 
                $doc = new DOMDocument();
                @$doc->loadHTML($body);
 
-               XML::deleteNode($doc, "style");
-               XML::deleteNode($doc, "script");
-               XML::deleteNode($doc, "option");
-               XML::deleteNode($doc, "h1");
-               XML::deleteNode($doc, "h2");
-               XML::deleteNode($doc, "h3");
-               XML::deleteNode($doc, "h4");
-               XML::deleteNode($doc, "h5");
-               XML::deleteNode($doc, "h6");
-               XML::deleteNode($doc, "ol");
-               XML::deleteNode($doc, "ul");
+               XML::deleteNode($doc, 'style');
+               XML::deleteNode($doc, 'script');
+               XML::deleteNode($doc, 'option');
+               XML::deleteNode($doc, 'h1');
+               XML::deleteNode($doc, 'h2');
+               XML::deleteNode($doc, 'h3');
+               XML::deleteNode($doc, 'h4');
+               XML::deleteNode($doc, 'h5');
+               XML::deleteNode($doc, 'h6');
+               XML::deleteNode($doc, 'ol');
+               XML::deleteNode($doc, 'ul');
 
                $xpath = new DOMXPath($doc);
 
-               $list = $xpath->query("//meta[@content]");
+               $list = $xpath->query('//meta[@content]');
                foreach ($list as $node) {
-                       $attr = [];
+                       $meta_tag = [];
                        if ($node->attributes->length) {
                                foreach ($node->attributes as $attribute) {
-                                       $attr[$attribute->name] = $attribute->value;
+                                       $meta_tag[$attribute->name] = $attribute->value;
                                }
                        }
 
-                       if (@$attr["http-equiv"] == "refresh") {
-                               $path = $attr["content"];
-                               $pathinfo = explode(";", $path);
-                               $content = "";
+                       if (@$meta_tag['http-equiv'] == 'refresh') {
+                               $path = $meta_tag['content'];
+                               $pathinfo = explode(';', $path);
+                               $content = '';
                                foreach ($pathinfo as $value) {
-                                       if (substr(strtolower($value), 0, 4) == "url=") {
+                                       if (substr(strtolower($value), 0, 4) == 'url=') {
                                                $content = substr($value, 4);
                                        }
                                }
-                               if ($content != "") {
+                               if ($content != '') {
                                        $siteinfo = self::getSiteinfo($content, $no_guessing, $do_oembed, ++$count);
-                                       return($siteinfo);
+                                       return $siteinfo;
                                }
                        }
                }
 
-               $list = $xpath->query("//title");
+               $list = $xpath->query('//title');
                if ($list->length > 0) {
-                       $siteinfo["title"] = trim($list->item(0)->nodeValue);
+                       $siteinfo['title'] = trim($list->item(0)->nodeValue);
                }
 
-               //$list = $xpath->query("head/meta[@name]");
-               $list = $xpath->query("//meta[@name]");
+               $list = $xpath->query('//meta[@name]');
                foreach ($list as $node) {
-                       $attr = [];
+                       $meta_tag = [];
                        if ($node->attributes->length) {
                                foreach ($node->attributes as $attribute) {
-                                       $attr[$attribute->name] = $attribute->value;
+                                       $meta_tag[$attribute->name] = $attribute->value;
                                }
                        }
 
-                       if (!empty($attr["content"])) {
-                               $attr["content"] = trim(html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8"));
-
-                               switch (strtolower($attr["name"])) {
-                                       case "fulltitle":
-                                               $siteinfo["title"] = trim($attr["content"]);
-                                               break;
-                                       case "description":
-                                               $siteinfo["text"] = trim($attr["content"]);
-                                               break;
-                                       case "thumbnail":
-                                               $siteinfo["image"] = $attr["content"];
-                                               break;
-                                       case "twitter:image":
-                                               $siteinfo["image"] = $attr["content"];
-                                               break;
-                                       case "twitter:image:src":
-                                               $siteinfo["image"] = $attr["content"];
-                                               break;
-                                       case "twitter:card":
-                                               if (($siteinfo["type"] == "") || ($attr["content"] == "photo")) {
-                                                       $siteinfo["type"] = $attr["content"];
-                                               }
-                                               break;
-                                       case "twitter:description":
-                                               $siteinfo["text"] = trim($attr["content"]);
-                                               break;
-                                       case "twitter:title":
-                                               $siteinfo["title"] = trim($attr["content"]);
-                                               break;
-                                       case "dc.title":
-                                               $siteinfo["title"] = trim($attr["content"]);
-                                               break;
-                                       case "dc.description":
-                                               $siteinfo["text"] = trim($attr["content"]);
-                                               break;
-                                       case "keywords":
-                                               $keywords = explode(",", $attr["content"]);
-                                               break;
-                                       case "news_keywords":
-                                               $keywords = explode(",", $attr["content"]);
-                                               break;
-                               }
+                       if (empty($meta_tag['content'])) {
+                               continue;
                        }
-                       if ($siteinfo["type"] == "summary") {
-                               $siteinfo["type"] = "link";
+
+                       $meta_tag['content'] = trim(html_entity_decode($meta_tag['content'], ENT_QUOTES, 'UTF-8'));
+
+                       switch (strtolower($meta_tag['name'])) {
+                               case 'fulltitle':
+                                       $siteinfo['title'] = trim($meta_tag['content']);
+                                       break;
+                               case 'description':
+                                       $siteinfo['text'] = trim($meta_tag['content']);
+                                       break;
+                               case 'thumbnail':
+                                       $siteinfo['image'] = $meta_tag['content'];
+                                       break;
+                               case 'twitter:image':
+                                       $siteinfo['image'] = $meta_tag['content'];
+                                       break;
+                               case 'twitter:image:src':
+                                       $siteinfo['image'] = $meta_tag['content'];
+                                       break;
+                               case 'twitter:card':
+                                       // Detect photo pages
+                                       if ($meta_tag['content'] == 'summary_large_image') {
+                                               $siteinfo['type'] = 'photo';
+                                       }
+                                       break;
+                               case 'twitter:description':
+                                       $siteinfo['text'] = trim($meta_tag['content']);
+                                       break;
+                               case 'twitter:title':
+                                       $siteinfo['title'] = trim($meta_tag['content']);
+                                       break;
+                               case 'dc.title':
+                                       $siteinfo['title'] = trim($meta_tag['content']);
+                                       break;
+                               case 'dc.description':
+                                       $siteinfo['text'] = trim($meta_tag['content']);
+                                       break;
+                               case 'keywords':
+                                       $keywords = explode(',', $meta_tag['content']);
+                                       break;
+                               case 'news_keywords':
+                                       $keywords = explode(',', $meta_tag['content']);
+                                       break;
                        }
                }
 
                if (isset($keywords)) {
-                       $siteinfo["keywords"] = [];
+                       $siteinfo['keywords'] = [];
                        foreach ($keywords as $keyword) {
-                               if (!in_array(trim($keyword), $siteinfo["keywords"])) {
-                                       $siteinfo["keywords"][] = trim($keyword);
+                               if (!in_array(trim($keyword), $siteinfo['keywords'])) {
+                                       $siteinfo['keywords'][] = trim($keyword);
                                }
                        }
                }
 
-               //$list = $xpath->query("head/meta[@property]");
-               $list = $xpath->query("//meta[@property]");
+               $list = $xpath->query('//meta[@property]');
                foreach ($list as $node) {
-                       $attr = [];
+                       $meta_tag = [];
                        if ($node->attributes->length) {
                                foreach ($node->attributes as $attribute) {
-                                       $attr[$attribute->name] = $attribute->value;
+                                       $meta_tag[$attribute->name] = $attribute->value;
                                }
                        }
 
-                       if (!empty($attr["content"])) {
-                               $attr["content"] = trim(html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8"));
+                       if (!empty($meta_tag['content'])) {
+                               $meta_tag['content'] = trim(html_entity_decode($meta_tag['content'], ENT_QUOTES, 'UTF-8'));
 
-                               switch (strtolower($attr["property"])) {
-                                       case "og:image":
-                                               $siteinfo["image"] = $attr["content"];
+                               switch (strtolower($meta_tag['property'])) {
+                                       case 'og:image':
+                                               $siteinfo['image'] = $meta_tag['content'];
                                                break;
-                                       case "og:title":
-                                               $siteinfo["title"] = trim($attr["content"]);
+                                       case 'og:title':
+                                               $siteinfo['title'] = trim($meta_tag['content']);
                                                break;
-                                       case "og:description":
-                                               $siteinfo["text"] = trim($attr["content"]);
+                                       case 'og:description':
+                                               $siteinfo['text'] = trim($meta_tag['content']);
                                                break;
                                }
                        }
                }
 
-               if ((@$siteinfo["image"] == "") && !$no_guessing) {
-                       $list = $xpath->query("//img[@src]");
+               // Prevent to have a photo type without an image
+               if ((empty($siteinfo['image']) || !empty($siteinfo['text'])) && ($siteinfo['type'] == 'photo')) {
+                       $siteinfo['type'] = 'link';
+               }
+
+               if (empty($siteinfo['image']) && !$no_guessing) {
+                       $list = $xpath->query('//img[@src]');
                        foreach ($list as $node) {
-                               $attr = [];
+                               $img_tag = [];
                                if ($node->attributes->length) {
                                        foreach ($node->attributes as $attribute) {
-                                               $attr[$attribute->name] = $attribute->value;
+                                               $img_tag[$attribute->name] = $attribute->value;
                                        }
                                }
 
-                               $src = self::completeUrl($attr["src"], $url);
+                               $src = self::completeUrl($img_tag['src'], $url);
                                $photodata = Image::getInfoFromURL($src);
 
                                if (($photodata) && ($photodata[0] > 150) && ($photodata[1] > 150)) {
@@ -357,70 +359,72 @@ class ParseUrl
                                                $photodata[0] = round($photodata[0] * (300 / $photodata[1]));
                                                $photodata[1] = 300;
                                        }
-                                       $siteinfo["images"][] = ["src" => $src,
-                                                                       "width" => $photodata[0],
-                                                                       "height" => $photodata[1]];
+                                       $siteinfo['images'][] = [
+                                               'src'    => $src,
+                                               'width'  => $photodata[0],
+                                               'height' => $photodata[1]
+                                       ];
                                }
                        }
-               } elseif (!empty($siteinfo["image"])) {
-                       $src = self::completeUrl($siteinfo["image"], $url);
+               } elseif (!empty($siteinfo['image'])) {
+                       $src = self::completeUrl($siteinfo['image'], $url);
 
-                       unset($siteinfo["image"]);
+                       unset($siteinfo['image']);
 
                        $photodata = Image::getInfoFromURL($src);
 
                        if (($photodata) && ($photodata[0] > 10) && ($photodata[1] > 10)) {
-                               $siteinfo["images"][] = ["src" => $src,
-                                                               "width" => $photodata[0],
-                                                               "height" => $photodata[1]];
+                               $siteinfo['images'][] = ['src' => $src,
+                                       'width' => $photodata[0],
+                                       'height' => $photodata[1]];
                        }
                }
 
-               if ((@$siteinfo["text"] == "") && (@$siteinfo["title"] != "") && !$no_guessing) {
-                       $text = "";
+               if ((@$siteinfo['text'] == '') && (@$siteinfo['title'] != '') && !$no_guessing) {
+                       $text = '';
 
-                       $list = $xpath->query("//div[@class='article']");
+                       $list = $xpath->query('//div[@class="article"]');
                        foreach ($list as $node) {
                                if (strlen($node->nodeValue) > 40) {
-                                       $text .= " ".trim($node->nodeValue);
+                                       $text .= ' ' . trim($node->nodeValue);
                                }
                        }
 
-                       if ($text == "") {
-                               $list = $xpath->query("//div[@class='content']");
+                       if ($text == '') {
+                               $list = $xpath->query('//div[@class="content"]');
                                foreach ($list as $node) {
                                        if (strlen($node->nodeValue) > 40) {
-                                               $text .= " ".trim($node->nodeValue);
+                                               $text .= ' ' . trim($node->nodeValue);
                                        }
                                }
                        }
 
                        // If none text was found then take the paragraph content
-                       if ($text == "") {
-                               $list = $xpath->query("//p");
+                       if ($text == '') {
+                               $list = $xpath->query('//p');
                                foreach ($list as $node) {
                                        if (strlen($node->nodeValue) > 40) {
-                                               $text .= " ".trim($node->nodeValue);
+                                               $text .= ' ' . trim($node->nodeValue);
                                        }
                                }
                        }
 
-                       if ($text != "") {
-                               $text = trim(str_replace(["\n", "\r"], [" ", " "], $text));
+                       if ($text != '') {
+                               $text = trim(str_replace(["\n", "\r"], [' ', ' '], $text));
 
-                               while (strpos($text, "  ")) {
-                                       $text = trim(str_replace("  ", " ", $text));
+                               while (strpos($text, '  ')) {
+                                       $text = trim(str_replace('  ', ' ', $text));
                                }
 
-                               $siteinfo["text"] = trim(html_entity_decode(substr($text, 0, 350), ENT_QUOTES, "UTF-8").'...');
+                               $siteinfo['text'] = trim(html_entity_decode(substr($text, 0, 350), ENT_QUOTES, 'UTF-8') . '...');
                        }
                }
 
-               logger("parseurl_getsiteinfo: Siteinfo for ".$url." ".print_r($siteinfo, true), LOGGER_DEBUG);
+               Logger::log('Siteinfo for ' . $url . ' ' . print_r($siteinfo, true), Logger::DEBUG);
 
-               Addon::callHooks("getsiteinfo", $siteinfo);
+               Addon::callHooks('getsiteinfo', $siteinfo);
 
-               return($siteinfo);
+               return $siteinfo;
        }
 
        /**
@@ -482,21 +486,23 @@ class ParseUrl
 
                $complete = $schemearr["scheme"]."://".$schemearr["host"];
 
-               if (@$schemearr["port"] != "") {
+               if (!empty($schemearr["port"])) {
                        $complete .= ":".$schemearr["port"];
                }
 
-               if (strpos($urlarr["path"], "/") !== 0) {
-                       $complete .= "/";
-               }
+               if (!empty($urlarr["path"])) {
+                       if (strpos($urlarr["path"], "/") !== 0) {
+                               $complete .= "/";
+                       }
 
-               $complete .= $urlarr["path"];
+                       $complete .= $urlarr["path"];
+               }
 
-               if (@$urlarr["query"] != "") {
+               if (!empty($urlarr["query"])) {
                        $complete .= "?".$urlarr["query"];
                }
 
-               if (@$urlarr["fragment"] != "") {
+               if (!empty($urlarr["fragment"])) {
                        $complete .= "#".$urlarr["fragment"];
                }