init

1 files changed, 141 insertions, 0 deletions

diff --git a/dl.php b/dl.php
new file mode 100644
index 0000000..a3cdcdd
--- /dev/null
+++ b/dl.php
@@ -0,0 +1,141 @@
+<?php
+
+require_once("func.php");
+require("config.php");
+
+if($_SERVER["REQUEST_METHOD"] != "GET")
+	failure("Request method not supported.", true);
+
+require_once("class/redis.php");
+@ini_set("memory_limit",'150M');
+set_time_limit(0);
+
+$db = new  database($REDIS_DBNAME, $REDIS_CONNECT);
+$db->open();
+if(!$db->listExists($_GET["vid"])){
+	failure("No video information found.", true);
+}
+$info = $db->getAll($_GET["vid"]);
+$db->close();
+unset($db);
+
+if(!$info){
+	failure("No video information found.", true);
+}
+
+if(empty($_GET["task"]))
+	failure("I don't understand your question.", true);
+
+# array: 0 => http code; 1 => mime; 2 => size; 3 => url
+$curl = curlInfo($info[3]);
+
+if($_GET["task"] == "stream" || $_GET["task"] == "player")
+	$MAXSIZE = 200000000;
+
+# checks file size
+if($curl[2] > $MAXSIZE){	// 50M 
+	$f=BytesHumanSize($curl[2] - $MAXSIZE);
+	failure("File too large. It's <u style='color:red;'>".$f."</u> bytes over the maximum",true);
+}
+
+# checks http status code
+if($curl[0]>= 400){
+	failure("Foreign server responded with a invalid status code. (<a  href='https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#".$curl[0]."' target='__blank'>".$curl[0]."</a>).<br>That is not an error on our side and there is nothing we can do.<br><br>Maybe it's blocked in our country as well?", true);
+}
+
+/*
+# checks file size
+if($info[10] > 50000000){	// 50M
+	$f = $info[10]-50000000;
+	failure("File too large. It's ".$f." bytes over the maximum", true);
+}
+*/
+
+# checks http status code
+/*
+if($info[8] >= 400)
+	failure("Failure. Foreign server responded with a invalid status code. (".$info[8].")<br>That is not an error on our side and there is nothing we can do.", true);
+*/
+
+switch($_GET["task"]){
+	case("ddl"): /* direct download */
+		if(preg_match("/^video.+/i", $curl[1])){
+			$mime = $curl[1];
+			$file = $curl[3];
+			$length = $curl[2];
+		} else {
+			$ret = video_dl($info[0], $CACHEDIR, $info[2]);
+			if(!$ch)
+				failure("Fetching the video failed.", true);
+
+			$finfo = new finfo(FILEINFO_MIME_TYPE);
+			$mime = $finfo->file($CACHEDIR . "/" . $info[5]);
+			$length = filesize($CACHEDIR . "/" . $info[5]);
+		}
+
+		header("Content-Type: ".$mime);
+		header('Content-Disposition: attachment; filename="'.$info[5].'"');
+		header("Content-Length: ".$length);
+
+		readfile($file);
+		break;
+
+	case("xtau"): /* extracting audio */
+		# get file information
+		exec("youtube-dl -x --get-filename --output ".escapeshellarg($CACHEDIR."/".$info[2].".%(ext)s") . " ".escapeshellarg($info[0]), $output, $ret);
+		if($ret != 0)
+			failure("Fetching the video failed", true);
+
+		# file name with correct extension, but cache dir at first
+		$file = $output[0];
+
+		if(!file_exists($file)){
+			$ret = video_xt_audio($info[0], $CACHEDIR, $info[2]);
+			if(!$ret)
+				failure("Fetching the video failed.", true);
+		}
+		$finfo = new finfo(FILEINFO_MIME_TYPE);
+
+		$mime = $finfo->file($file);
+
+		# prepare dir name for regexp
+		$PREG_CACHEDIR = preg_quote($CACHEDIR, "/");
+		# replace the cache dir so that we send it to the browser as filename
+		$filename = preg_replace("/^".$PREG_CACHEDIR."\/".$info[2]."/", "", $file);
+		$filename = $info[1] . $filename;
+
+		header("Content-type: " . $mime);
+		header('Content-Disposition: attachment; filename="'.$filename.'"');
+		header("Content-length: " . filesize($file));
+
+		readfile($file);
+		break;
+
+	case("stream"):
+		ignore_user_abort(true);
+		# send 'cached' response in case we already have the video on disk
+		if(file_exists($CACHEDIR."/".$info[2]) && !file_exists($CACHEDIR."/".$info[2].".txt")){
+			echo "cached";
+		} else {
+			# but in most cases we don't, so let's download it
+			$ret = video_dl($info[0], $CACHEDIR, $info[2]);
+			if(!$ret)
+				failure("Fetching the video failed.", false);
+			else
+				unlink($CACHEDIR."/".$info[2].".txt");
+		}
+		break;
+
+	case("player"):
+		# prints the player
+		$finfo = new finfo(FILEINFO_MIME_TYPE);
+		$mime = $finfo->file($CACHEDIR . "/" . $info[2]);
+
+		pr_player(htmlentities($CACHEDIR . "/" . $info[2]), htmlentities($info[4]), htmlentities($mime), htmlentities($info[1]), htmlentities($info[2]));
+		break;
+
+	default:
+		failure("I don't understand your question.", true);
+		break;
+		
+}