<?php namespace Zotlabs\Module; class Linkinfo extends \Zotlabs\Web\Controller { function get() { logger('linkinfo: ' . print_r($_REQUEST,true)); $text = null; $str_tags = ''; $process_oembed = true; $br = "\n"; if(x($_GET,'binurl')) $url = trim(hex2bin($_GET['binurl'])); else $url = trim($_GET['url']); if(substr($url,0,1) === '!') { $process_oembed = false; $url = substr($url,1); } $url = strip_zids($url); if((substr($url,0,1) != '/') && (substr($url,0,4) != 'http')) $url = 'http://' . $url; if($_GET['title']) $title = strip_tags(trim($_GET['title'])); if($_GET['description']) $text = strip_tags(trim($_GET['description'])); if($_GET['tags']) { $arr_tags = str_getcsv($_GET['tags']); if(count($arr_tags)) { array_walk($arr_tags,'self::arr_add_hashes'); $str_tags = $br . implode(' ',$arr_tags) . $br; } } logger('linkinfo: ' . $url); // Replace plink URL with 'share' tag if possible preg_match("/(mid=b64\.|display\/|posts\/)([\w\-]+)(&.+)?$/", $url, $mid); if (!empty($mid) && $mid[1] == 'mid=b64.') $mid[2] = base64_decode($mid[2]); $r = q("SELECT id FROM item WHERE mid = '%s' AND uid = %d AND item_private = 0 LIMIT 1", dbesc((empty($mid) ? $url : $mid[2])), intval(local_channel()) ); if ($r) { echo "[share=" . $r[0]['id'] . "][/share]"; killme(); } $result = z_fetch_url($url,false,0,array('novalidate' => true, 'nobody' => true)); if($result['success']) { $hdrs=array(); $h = explode("\n",$result['header']); foreach ($h as $l) { list($k,$v) = array_map("trim", explode(":", trim($l), 2)); $hdrs[strtolower($k)] = $v; } if (array_key_exists('content-type', $hdrs)) $type = $hdrs['content-type']; if($type) { $zrl = is_matrix_url($url); if(stripos($type,'image/') !== false) { if($zrl) echo $br . '[zmg]' . $url . '[/zmg]' . $br; else echo $br . '[img]' . $url . '[/img]' . $br; killme(); } if(stripos($type,'video/') !== false) { $thumb = self::get_video_poster($url); if($thumb) { if ($zrl) echo $br . '[zvideo poster=\'' . $thumb . '\']' . $url . '[/zvideo]' . $br; else echo $br . '[video poster=\'' . $thumb . '\']' . $url . '[/video]' . $br; killme(); } if($zrl) echo $br . '[zvideo]' . $url . '[/zvideo]' . $br; else echo $br . '[video]' . $url . '[/video]' . $br; killme(); } if(stripos($type,'audio/') !== false) { if($zrl) echo $br . '[zaudio]' . $url . '[/zaudio]' . $br; else echo $br . '[audio]' . $url . '[/audio]' . $br; killme(); } if(strtolower($type) === 'application/pdf' || strtolower($type) === 'application/x-pdf') { echo $br . '[embed]' . $url . '[/embed]' . $br; killme(); } } } $template = $br . '#^[url=%s]%s[/url]%s' . $br; $arr = array('url' => $url, 'text' => ''); call_hooks('parse_link', $arr); if(strlen($arr['text'])) { echo $arr['text']; killme(); } if($process_oembed) { $x = oembed_process($url); if($x) { echo $x; killme(); } } if($url && $title && $text) { $text = $br . '[quote]' . trim($text) . '[/quote]' . $br; $title = str_replace(array("\r","\n"),array('',''),$title); $result = sprintf($template,$url,($title) ? $title : $url,$text) . $str_tags; logger('linkinfo (unparsed): returns: ' . $result); echo $result; killme(); } $siteinfo = self::parseurl_getsiteinfo($url); // If the site uses this platform, use zrl rather than url so they get zids sent to them by default if(is_matrix_url($url)) $template = str_replace('url','zrl',$template); if($siteinfo["title"] == "") { echo sprintf($template,$url,$url,'') . $str_tags; killme(); } else { $text = $siteinfo["text"]; $title = $siteinfo["title"]; } $image = ""; if(is_array($siteinfo["images"]) && count($siteinfo["images"])){ /* Execute below code only if image is present in siteinfo */ $total_images = 0; $max_images = get_config('system','max_bookmark_images'); if($max_images === false) $max_images = 2; else $max_images = intval($max_images); foreach ($siteinfo["images"] as $imagedata) { if ($url) { $image .= sprintf('[url=%s]', $url); } $image .= '[img='.$imagedata["width"].'x'.$imagedata["height"].']'.$imagedata["src"].'[/img]'; if ($url) { $image .= '[/url]'; } $image .= "\n"; $total_images ++; if($max_images && $max_images >= $total_images) break; } } if(strlen($text)) { $text = $br.'[quote]'.trim($text).'[/quote]'.$br ; } if($image) { $text = $br.$br.$image.$text; } $title = str_replace(array("\r","\n"),array('',''),$title); $result = sprintf($template,$url,($title) ? $title : $url,$text) . $str_tags; logger('linkinfo: returns: ' . $result, LOGGER_DEBUG); echo trim($result); killme(); } public static function deletexnode(&$doc, $node) { $xpath = new \DomXPath($doc); $list = $xpath->query("//".$node); foreach ($list as $child) $child->parentNode->removeChild($child); } public static function completeurl($url, $scheme) { $urlarr = parse_url($url); if (isset($urlarr["scheme"])) return($url); $schemearr = parse_url($scheme); $complete = $schemearr["scheme"]."://".$schemearr["host"]; if ($schemearr["port"] != "") $complete .= ":".$schemearr["port"]; if(strpos($urlarr['path'],'/') !== 0) $complete .= '/'; $complete .= $urlarr["path"]; if ($urlarr["query"] != "") $complete .= "?".$urlarr["query"]; if ($urlarr["fragment"] != "") $complete .= "#".$urlarr["fragment"]; return($complete); } public static function get_video_poster($url) { if(strpos($url,z_root() . '/cloud/') === false) { return EMPTY_STR; } $m = parse_url($url,PHP_URL_PATH); if($m) { // strip leading '/cloud/' $m = substr($m,7); } $nick = substr($m,0,strpos($m,'/')); $p = substr($m,strpos($m,'/')+1); // get the channel to check permissions $u = channelx_by_nick($nick); if($u && $p) { $sql_extra = permissions_sql(intval($u['channel_id'])); $r = q("select hash, content from attach where display_path = '%s' and uid = %d and os_storage = 1 $sql_extra limit 1", dbesc($p), intval($u['channel_id']) ); if($r) { $path = dbunescbin($r[0]['content']); if($path && @file_exists($path . '.thumb')) { return z_root() . '/poster/' . $nick . '/' . $r[0]['hash']; } } } return EMPTY_STR; } public static function parseurl_getsiteinfo($url) { $siteinfo = array(); $result = z_fetch_url($url,false,0,array('novalidate' => true)); if(! $result['success']) return $siteinfo; $header = $result['header']; $body = $result['body']; // Check codepage in HTTP headers or HTML if not exist $cp = (preg_match('/Content-Type: text\/html; charset=(.+)\r\n/i', $header, $o) ? $o[1] : ''); if(empty($cp)) $cp = (preg_match('/meta.+content=["\']text\/html; charset=([^"\']+)/i', $body, $o) ? $o[1] : 'AUTO'); $body = mb_convert_encoding($body, 'UTF-8', $cp); $body = mb_convert_encoding($body, 'HTML-ENTITIES', "UTF-8"); $doc = new \DOMDocument(); @$doc->loadHTML($body); self::deletexnode($doc, 'style'); self::deletexnode($doc, 'script'); self::deletexnode($doc, 'option'); self::deletexnode($doc, 'h1'); self::deletexnode($doc, 'h2'); self::deletexnode($doc, 'h3'); self::deletexnode($doc, 'h4'); self::deletexnode($doc, 'h5'); self::deletexnode($doc, 'h6'); self::deletexnode($doc, 'ol'); self::deletexnode($doc, 'ul'); $xpath = new \DomXPath($doc); //$list = $xpath->query("head/title"); $list = $xpath->query("//title"); foreach ($list as $node) $siteinfo["title"] = html_entity_decode($node->nodeValue, ENT_QUOTES, "UTF-8"); //$list = $xpath->query("head/meta[@name]"); $list = $xpath->query("//meta[@name]"); foreach ($list as $node) { $attr = array(); if ($node->attributes->length) foreach ($node->attributes as $attribute) $attr[$attribute->name] = $attribute->value; $attr["content"] = html_entity_decode($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(",", $attr["content"]); break; } } //$list = $xpath->query("head/meta[@property]"); $list = $xpath->query("//meta[@property]"); foreach ($list as $node) { $attr = array(); if ($node->attributes->length) foreach ($node->attributes as $attribute) $attr[$attribute->name] = $attribute->value; $attr["content"] = html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8"); switch (strtolower($attr["property"])) { case "og:image": $siteinfo["image"] = $attr["content"]; break; case "og:title": $siteinfo["title"] = $attr["content"]; break; case "og:description": $siteinfo["text"] = $attr["content"]; break; } } if ($siteinfo["image"] == "") { $list = $xpath->query("//img[@src]"); foreach ($list as $node) { $attr = array(); if ($node->attributes->length) foreach ($node->attributes as $attribute) $attr[$attribute->name] = $attribute->value; $src = self::completeurl($attr["src"], $url); $photodata = @getimagesize($src); if (($photodata) && ($photodata[0] > 150) and ($photodata[1] > 150)) { if ($photodata[0] > 300) { $photodata[1] = round($photodata[1] * (300 / $photodata[0])); $photodata[0] = 300; } if ($photodata[1] > 300) { $photodata[0] = round($photodata[0] * (300 / $photodata[1])); $photodata[1] = 300; } $siteinfo["images"][] = array("src"=>$src, "width"=>$photodata[0], "height"=>$photodata[1]); } } } else { $src = self::completeurl($siteinfo["image"], $url); unset($siteinfo["image"]); $photodata = @getimagesize($src); if (($photodata) && ($photodata[0] > 10) and ($photodata[1] > 10)) $siteinfo["images"][] = array("src"=>$src, "width"=>$photodata[0], "height"=>$photodata[1]); } if ($siteinfo["text"] == "") { $text = ""; $list = $xpath->query("//div[@class='article']"); foreach ($list as $node) if (strlen($node->nodeValue) > 40) $text .= " ".trim($node->nodeValue); if ($text == "") { $list = $xpath->query("//div[@class='content']"); foreach ($list as $node) if (strlen($node->nodeValue) > 40) $text .= " ".trim($node->nodeValue); } // If none text was found then take the paragraph content if ($text == "") { $list = $xpath->query("//p"); foreach ($list as $node) if (strlen($node->nodeValue) > 40) $text .= " ".trim($node->nodeValue); } if ($text != "") { $text = trim(str_replace(array("\n", "\r"), array(" ", " "), $text)); while (strpos($text, " ")) $text = trim(str_replace(" ", " ", $text)); $text = substr(html_entity_decode($text, ENT_QUOTES, "UTF-8"), 0, 350); $siteinfo["text"] = rtrim(substr($text, 0, strrpos($text, " ")), "?.,:;!-") . '...'; } } return($siteinfo); } private static function arr_add_hashes(&$item,$k) { $item = '#' . $item; } }