unfuck yourself

1 files changed, 117 insertions, 0 deletions

diff --git a/resolve/sc.php b/resolve/sc.php
new file mode 100644
index 0000000..3606274
--- /dev/null
+++ b/resolve/sc.php
@@ -0,0 +1,117 @@
+<?php
+
+class sc{
+	
+	public function __construct(){
+		
+		include "lib/backend.php";
+		$this->backend = new backend("sc");
+		
+		include "lib/fuckhtml.php";
+		$this->fuckhtml = new fuckhtml();
+	}
+	
+	private function get($proxy, $url, $get = []){
+		
+		$curlproc = curl_init();
+		
+		if($get !== []){
+			$get = http_build_query($get);
+			$url .= "?" . $get;
+		}
+		
+		curl_setopt($curlproc, CURLOPT_URL, $url);
+		
+		// http2 bypass
+		curl_setopt($curlproc, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
+		
+		$headers =
+			["User-Agent: " . config::USER_AGENT,
+			"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+			"Accept-Language: en-US,en;q=0.5",
+			"Accept-Encoding: gzip",
+			"DNT: 1",
+			"Sec-GPC: 1",
+			"Connection: keep-alive",
+			"Upgrade-Insecure-Requests: 1",
+			"Sec-Fetch-Dest: document",
+			"Sec-Fetch-Mode: navigate",
+			"Sec-Fetch-Site: none",
+			"Sec-Fetch-User: ?1",
+			"Priority: u=0, i"];
+		
+		$this->backend->assign_proxy($curlproc, $proxy);
+		
+		curl_setopt($curlproc, CURLOPT_ENCODING, ""); // default encoding
+		curl_setopt($curlproc, CURLOPT_HTTPHEADER, $headers);
+		
+		curl_setopt($curlproc, CURLOPT_RETURNTRANSFER, true);
+		curl_setopt($curlproc, CURLOPT_SSL_VERIFYHOST, 2);
+		curl_setopt($curlproc, CURLOPT_SSL_VERIFYPEER, true);
+		curl_setopt($curlproc, CURLOPT_CONNECTTIMEOUT, 30);
+		curl_setopt($curlproc, CURLOPT_TIMEOUT, 30);
+		
+		$data = curl_exec($curlproc);
+		
+		if(curl_errno($curlproc)){
+			throw new Exception(curl_error($curlproc));
+		}
+		
+		curl_close($curlproc);
+		return $data;
+	}
+	
+	function resolve($id){
+		
+		if(
+			!preg_match(
+				'/^(t|p)[0-9]+$/',
+				$id
+			)
+		){
+			
+			throw new Exception("ID is invalid");
+		}
+		
+		$type = $id[0] == "t" ? "track" : "playlist";
+		$id = substr($id, 1);
+		
+		try{
+			$html =
+				$this->get(
+					$this->backend->get_ip(),
+					"https://w.soundcloud.com/player/",
+					[
+						"url" => "http://api.soundcloud.com/{$type}s/{$id}",
+						"show_artwork" => "true"
+					]
+				);
+		}catch(Exception $error){
+			
+			throw new Exception("Failed to fetch song embed page");
+		}
+		
+		$this->fuckhtml->load($html);
+		
+		$link =
+			$this->fuckhtml
+			->getElementsByAttributeValue(
+				"rel",
+				"canonical",
+				"link"
+			);
+		
+		if(count($link) === 0){
+			
+			throw new Exception("Soundcloud could not resolve the song ID to an URL");
+		}
+		
+		return
+			$this->fuckhtml
+			->getTextContent(
+				$link[0]
+				["attributes"]
+				["href"]
+			);
+	}
+}