host = $host; $host->add_hook($host::HOOK_RENDER_ARTICLE, $this); $host->add_hook($host::HOOK_RENDER_ARTICLE_CDM, $this); $host->add_hook($host::HOOK_ENCLOSURE_ENTRY, $this); $host->add_hook($host::HOOK_PREFS_TAB, $this); } function hook_enclosure_entry($enc) { if (preg_match("/image/", $enc["content_type"]) || preg_match("/\.(jpe?g|png|gif|bmp)$/i", $enc["filename"])) { $proxy_all = $this->host->get($this, "proxy_all"); $enc["content_url"] = $this->rewrite_url_if_needed($enc["content_url"], 0, $proxy_all); } return $enc; } function hook_render_article($article) { return $this->hook_render_article_cdm($article); } public function imgproxy() { $url = rewrite_relative_url(SELF_URL_PATH, $_REQUEST["url"]); $kind = (int) $_REQUEST["kind"]; // 1 = video // called without user context, let's just redirect to original URL if (!$_SESSION["uid"]) { header("Location: $url"); return; } $extension = $kind == 1 ? '.mp4' : '.png'; $local_filename = CACHE_DIR . "/images/" . sha1($url) . $extension; if ($_REQUEST["debug"] == "1") { print $url . "\n" . $local_filename; die; } header("Content-Disposition: inline; filename=\"".basename($local_filename)."\""); if (file_exists($local_filename)) { $mimetype = mime_content_type($local_filename); header("Content-type: $mimetype"); $stamp = gmdate("D, d M Y H:i:s", filemtime($local_filename)). " GMT"; header("Last-Modified: $stamp", true); readfile($local_filename); } else { $data = fetch_file_contents(array("url" => $url)); if ($data) { if (file_put_contents($local_filename, $data)) { $mimetype = mime_content_type($local_filename); header("Content-type: $mimetype"); } print $data; } } } function rewrite_url_if_needed($url, $kind, $all_remote = false) { $scheme = parse_url($url, PHP_URL_SCHEME); if ($all_remote) { $host = parse_url($url, PHP_URL_HOST); $self_host = parse_url(SELF_URL_PATH, PHP_URL_HOST); $is_remote = $host != $self_host; } else { $is_remote = false; } if (($scheme != 'https' && $scheme != "") || $is_remote) { if (strpos($url, "data:") !== 0) { $url = "public.php?op=pluginhandler&plugin=af_zz_imgproxy&pmethod=imgproxy&kind=$kind&url=" . urlencode($url); } } return $url; } function hook_render_article_cdm($article, $api_mode = false) { $need_saving = false; $proxy_all = $this->host->get($this, "proxy_all"); $doc = new DOMDocument(); if (@$doc->loadHTML($article["content"])) { $xpath = new DOMXPath($doc); $imgs = $xpath->query("//img[@src]"); foreach ($imgs as $img) { $new_src = $this->rewrite_url_if_needed($img->getAttribute("src"), 0, $proxy_all); if ($new_src != $img->getAttribute("src")) { $img->setAttribute("src", $new_src); $need_saving = true; } } $vids = $xpath->query("//video"); foreach ($vids as $vid) { if ($vid->hasAttribute("poster")) { $new_src = $this->rewrite_url_if_needed($vid->getAttribute("poster"), 0, $proxy_all); if ($new_src != $vid->getAttribute("poster")) { $vid->setAttribute("poster", $new_src); $need_saving = true; } } $vsrcs = $xpath->query("source", $vid); foreach ($vsrcs as $vsrc) { $new_src = $this->rewrite_url_if_needed($vsrc->getAttribute("src"), 1, $proxy_all); if ($new_src != $vsrc->getAttribute("src")) { $vid->setAttribute("src", $new_src); $need_saving = true; } } } } if ($need_saving) $article["content"] = $doc->saveXML(); return $article; } function hook_prefs_tab($args) { if ($args != "prefFeeds") return; print "

"; print ""; print "

"; } function save() { $proxy_all = checkbox_to_sql_bool($_POST["proxy_all"]) == "true"; $this->host->set($this, "proxy_all", $proxy_all); echo __("Configuration saved"); } function api_version() { return 2; } }