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Add initial support for embedding videos from YouTube, Vimeo, etc
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@ -4,6 +4,11 @@ This file holds the changelog for Pepperminty Wiki. This is the master list of t
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## v0.24-dev
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### Added
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- Added support for embedding external YouTube and Vimeo videos (e.g. `![alt text](https://youtube.com/watch?v=pID0xQ2qnrQ)`)
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- If you know of a cool service that should be supported, please open an issue - YouTube and Vimeo were just the only 2 I could think of
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- Known issue: specifying the size (i.e. with ` | 500x400` inside the brackets `()` there) doesn't currently work because iframes are weird
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### Changed
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- Display returnto URL above the login form if present to further mitigate CSRF issues
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@ -1205,6 +1205,11 @@ class PeppermintParsedown extends ParsedownExtra
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$urlType = system_extension_mime_type($urlExtension);
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$embed_type = substr($urlType, 0, strpos($urlType, "/"));
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if($urlType == "application/pdf") $embed_type = "pdf";
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// Check if the URL is a recognised external provider
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$ext_provider_result = $this->__make_embed($imageUrl, $altText);
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if($ext_provider_result !== null) $embed_type = "ext_provider";
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$result = [];
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switch($embed_type)
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{
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@ -1226,7 +1231,12 @@ class PeppermintParsedown extends ParsedownExtra
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]
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];
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break;
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case "ext_provider":
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$result = [
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"extent" => strlen($matches[0]),
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"element" => $ext_provider_result
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];
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break;
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case "audio":
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$result = [
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"extent" => strlen($matches[0]),
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@ -1322,6 +1332,64 @@ class PeppermintParsedown extends ParsedownExtra
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}
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}
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/**
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* Makes an embed HTML tree for a given URL.
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* Example URLs include YouTube links, Vimeo, etc.
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* @param string $url The URL to generate an embed for.
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* @return array|null The embed HTML tree, or null if generation failed (e.g. if the URL wasn't recognised).
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*/
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protected function __make_embed(string $url_text, string $alt_text) {
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// 1: URL parsing
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$url = parse_url($url_text);
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$url["host"] = preg_replace("/^www\./", "", $url["host"] ?? "");
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parse_str($url["query"] ?? "", $query);
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// 2: Pre-generation transforms
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switch($url["host"]) {
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case "player.vimeo.com":
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$url["host"] = "vimeo.com";
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$url["path"] = preg_replace("/^\/video/", "", $url["path"]);
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break;
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case "youtu.be":
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$query["v"] = preg_replace("/^\//", "", $url["path"]);
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$url["host"] = "youtube.com";
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$url["path"] = "/watch";
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break;
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}
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// 3: Actual embed generation
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switch ($url["host"]) {
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case "youtube.com":
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if($url["path"] !== "/watch" || empty($query["v"]))
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return null;
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return [
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"name" => "iframe",
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"attributes" => [
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"src" => "https://www.youtube.com/embed/{$query["v"]}",
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"frameborder" => "0",
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"allow" => "fullscreen; encrypted-media; picture-in-picture"
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],
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"text" => "YouTube: $alt_text"
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];
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break;
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case "vimeo.com":
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if(strlen($url["path"]) <= 1 || preg_match("/[^0-9\/]/", $url["path"]) === 1) return null;
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return [
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"name" => "iframe",
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"attributes" => [
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"src" => "https://player.vimeo.com/video{$url["path"]}",
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"frameborder" => "0",
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"allow" => "fullscreen; picture-in-picture"
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],
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"text" => "Vimeo: $alt_text"
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];
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break;
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default:
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return null;
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}
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}
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/*
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* ██████ ██████ ██████ ███████ ██████ ██ ██████ ██████ ██ ██
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