Commit c4ebf01e authored by Andrew Dolgov's avatar Andrew Dolgov

add af_zz_imgproxy (initial)

parent 70c0a8c2
<?php
class Af_Zz_ImgProxy extends Plugin {
private $host;
function about() {
return array(1.0,
"Load insecure images via built-in proxy (no caching)",
"fox");
}
function flags() {
return array("needs_curl" => true);
}
function init($host) {
$this->host = $host;
$host->add_hook($host::HOOK_RENDER_ARTICLE, $this);
$host->add_hook($host::HOOK_RENDER_ARTICLE_CDM, $this);
$host->add_hook($host::HOOK_RENDER_ARTICLE_API, $this);
}
function hook_render_article($article) {
return $this->hook_render_article_cdm($article);
}
function hook_render_article_api($headline) {
return $this->hook_render_article_cdm($headline["headline"], true);
}
/*public function vidproxy() {
$url = $_REQUEST["url"];
if (preg_match("/\.(mp4|webm|gifv)/", $url, $matches)) {
$type = $matches[1];
$embed_url = $url;
if ($type == "gifv") {
$type = "mp4";
$embed_url = str_replace(".gifv", ".mp4", $embed_url);
}
header("Content-type: text/html");
$embed_url = htmlspecialchars("backend.php?op=pluginhandler&plugin=af_zz_imgproxy&method=imgproxy&url=" .
urlencode($embed_url));
print "<video class=\"\" autoplay=\"true\" controls=\"true\" loop=\"true\">";
print "<source src=\"$embed_url\" type=\"video/$type\">";
print "</video>";
} else {
header("Location: " . htmlspecialchars($url));
}
}*/
public function imgproxy() {
$url = rewrite_relative_url(SELF_URL_PATH, $_REQUEST["url"]);
if (function_exists("getimagesize")) {
$is = @getimagesize($url);
header("Content-type: " . $is["mime"]);
}
print fetch_file_contents(array("url" => $url));
}
function rewrite_url_if_needed($url) {
$scheme = parse_url($url, PHP_URL_SCHEME);
if ($scheme != 'https' && $scheme != "") {
$url = "backend.php?op=pluginhandler&plugin=af_zz_imgproxy&method=imgproxy&url=" .
htmlspecialchars($url);
}
return $url;
}
function hook_render_article_cdm($article, $api_mode = false) {
$need_saving = false;
$doc = new DOMDocument();
if (@$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"));
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"));
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"));
if ($new_src != $vsrc->getAttribute("src")) {
$vid->setAttribute("src", $new_src);
$need_saving = true;
}
}
}
}
if ($need_saving) $article["content"] = $doc->saveXML();
return $article;
}
function api_version() {
return 2;
}
}
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