af_zz_imgproxy: rename to af_proxy_http, use priority hook loader

1 files changed, 0 insertions, 263 deletions

diff --git a/plugins/af_zz_imgproxy/init.php b/plugins/af_zz_imgproxy/init.php
deleted file mode 100755
index ddc30936f..000000000
--- a/plugins/af_zz_imgproxy/init.php
+++ /dev/null
@@ -1,263 +0,0 @@
-<?php
-class Af_Zz_ImgProxy extends Plugin {
-
-	/* @var PluginHost $host */
-	private $host;
-
-	/* @var DiskCache $cache */
-	private $cache;
-
-	function about() {
-		return array(1.0,
-			"Load insecure images via built-in proxy",
-			"fox");
-	}
-
-	private $ssl_known_whitelist = "imgur.com gfycat.com i.reddituploads.com pbs.twimg.com i.redd.it i.sli.mg media.tumblr.com";
-
-	function is_public_method($method) {
-		return $method === "imgproxy";
-	}
-
-	function init($host) {
-		$this->host = $host;
-		$this->cache = new DiskCache("images");
-
-		$host->add_hook($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"])) {
-			$proxy_all = $this->host->get($this, "proxy_all");
-
-			$enc["content_url"] = $this->rewrite_url_if_needed($enc["content_url"], $proxy_all);
-		}
-
-		return $enc;
-	}
-
-	function hook_render_article($article) {
-		return $this->hook_render_article_cdm($article);
-	}
-
-	public function imgproxy() {
-
-		$url = rewrite_relative_url(get_self_url_prefix(), $_REQUEST["url"]);
-
-		// called without user context, let's just redirect to original URL
-		if (!$_SESSION["uid"]) {
-			header("Location: $url");
-			return;
-		}
-
-		$local_filename = sha1($url);
-
-		if ($this->cache->exists($local_filename)) {
-			header("Location: " . $this->cache->getUrl($local_filename));
-			return;
-			//$this->cache->send($local_filename);
-		} else {
-			$data = fetch_file_contents(["url" => $url, "max_size" => MAX_CACHE_FILE_SIZE]);
-
-			if ($data) {
-
-				$disable_cache = $this->host->get($this, "disable_cache");
-
-				if (!$disable_cache) {
-					if ($this->cache->put($local_filename, $data)) {
-						header("Location: " . $this->cache->getUrl($local_filename));
-						return;
-					}
-				}
-
-				print $data;
-			} else {
-				global $fetch_last_error;
-				global $fetch_last_error_code;
-				global $fetch_last_error_content;
-
-				if (function_exists("imagecreate") && !isset($_REQUEST["text"])) {
-					$img = imagecreate(450, 75);
-
-					/*$bg =*/ imagecolorallocate($img, 255, 255, 255);
-					$textcolor = imagecolorallocate($img, 255, 0, 0);
-
-					imagerectangle($img, 0, 0, 450-1, 75-1, $textcolor);
-
-					imagestring($img, 5, 5, 5, "Proxy request failed", $textcolor);
-					imagestring($img, 5, 5, 30, truncate_middle($url, 46, "..."), $textcolor);
-					imagestring($img, 5, 5, 55, "HTTP Code: $fetch_last_error_code", $textcolor);
-
-					header("Content-type: image/png");
-					print imagepng($img);
-					imagedestroy($img);
-
-				} else {
-					header("Content-type: text/html");
-
-					http_response_code(400);
-
-					print "<h1>Proxy request failed.</h1>";
-					print "<p>Fetch error $fetch_last_error ($fetch_last_error_code)</p>";
-					print "<p>URL: $url</p>";
-					print "<textarea cols='80' rows='25'>" . htmlspecialchars($fetch_last_error_content) . "</textarea>";
-				}
-			}
-		}
-	}
-
-	private function rewrite_url_if_needed($url, $all_remote = false) {
-		/* we don't need to handle URLs where local cache already exists, tt-rss rewrites those automatically */
-		if (!$this->cache->exists(sha1($url))) {
-
-			$scheme = parse_url($url, PHP_URL_SCHEME);
-
-			if ($all_remote) {
-				$host = parse_url($url, PHP_URL_HOST);
-				$self_host = parse_url(get_self_url_prefix(), PHP_URL_HOST);
-
-				$is_remote = $host != $self_host;
-			} else {
-				$is_remote = false;
-			}
-
-			if (($scheme != 'https' && $scheme != "") || $is_remote) {
-				if (strpos($url, "data:") !== 0) {
-					$parts = parse_url($url);
-
-					foreach (explode(" " , $this->ssl_known_whitelist) as $host) {
-						if (substr(strtolower($parts['host']), -strlen($host)) === strtolower($host)) {
-							$parts['scheme'] = 'https';
-							$url = build_url($parts);
-							if ($all_remote && $is_remote) {
-								break;
-							} else {
-								return $url;
-							}
-						}
-					}
-
-					return get_self_url_prefix() . "/public.php?op=pluginhandler&plugin=af_zz_imgproxy&pmethod=imgproxy&url=" .
-						urlencode($url);
-				}
-			}
-		}
-
-		return $url;
-	}
-
-	/**
-	 * @SuppressWarnings(PHPMD.UnusedFormalParameter)
-	 */
-	function hook_render_article_cdm($article, $api_mode = false) {
-
-		$need_saving = false;
-		$proxy_all = $this->host->get($this, "proxy_all");
-
-		$doc = new DOMDocument();
-		if (@$doc->loadHTML('<?xml encoding="UTF-8">' . $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"), $proxy_all);
-
-				if ($new_src != $img->getAttribute("src")) {
-					$img->setAttribute("src", $new_src);
-					$img->removeAttribute("srcset");
-
-					$need_saving = true;
-				}
-			}
-
-			$vids = $xpath->query("(//video|//picture)");
-
-			foreach ($vids as $vid) {
-				if ($vid->hasAttribute("poster")) {
-					$new_src = $this->rewrite_url_if_needed($vid->getAttribute("poster"), $proxy_all);
-
-					if ($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"), $proxy_all);
-
-					if ($new_src != $vsrc->getAttribute("src")) {
-						$vid->setAttribute("src", $new_src);
-
-						$need_saving = true;
-					}
-				}
-			}
-		}
-
-		if ($need_saving) $article["content"] = $doc->saveHTML();
-
-		return $article;
-	}
-
-	function hook_prefs_tab($args) {
-		if ($args != "prefFeeds") return;
-
-		print "<div dojoType=\"dijit.layout.AccordionPane\" 
-			title=\"<i class='material-icons'>extension</i> ".__('Image proxy settings (af_zz_imgproxy)')."\">";
-
-		print "<form dojoType=\"dijit.form.Form\">";
-
-		print "<script type=\"dojo/method\" event=\"onSubmit\" args=\"evt\">
-			evt.preventDefault();
-			if (this.validate()) {
-				console.log(dojo.objectToQuery(this.getValues()));
-				new Ajax.Request('backend.php', {
-					parameters: dojo.objectToQuery(this.getValues()),
-					onComplete: function(transport) {
-						Notify.info(transport.responseText);
-					}
-				});
-				//this.reset();
-			}
-			</script>";
-
-		print_hidden("op", "pluginhandler");
-		print_hidden("method", "save");
-		print_hidden("plugin", "af_zz_imgproxy");
-
-		$proxy_all = $this->host->get($this, "proxy_all");
-		print_checkbox("proxy_all", $proxy_all);
-		print "&nbsp;<label for=\"proxy_all\">" . __("Enable proxy for all remote images.") . "</label><br/>";
-
-		$disable_cache = $this->host->get($this, "disable_cache");
-		print_checkbox("disable_cache", $disable_cache);
-		print "&nbsp;<label for=\"disable_cache\">" . __("Don't cache files locally.") . "</label>";
-
-		print "<p>"; print_button("submit", __("Save"));
-
-		print "</form>";
-
-		print "</div>";
-	}
-
-	function save() {
-		$proxy_all = checkbox_to_sql_bool($_POST["proxy_all"]);
-		$disable_cache = checkbox_to_sql_bool($_POST["disable_cache"]);
-
-		$this->host->set($this, "proxy_all", $proxy_all, false);
-		$this->host->set($this, "disable_cache", $disable_cache);
-
-		echo __("Configuration saved");
-	}
-
-	function api_version() {
-		return 2;
-	}
-}