gyazo.php

<?php
	$domain = "meinedomain.de";

	function generateRandomString($length = 10) {
		$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
		$charactersLength = strlen($characters);
		$randomString = '';
		for ($i = 0; $i < $length; $i++) {
			$randomString .= $characters[rand(0, $charactersLength - 1)];
		}
		return $randomString;
	}
	$target_dir = generateRandomString(8);
	while(is_dir($target_dir))
	{
		$target_dir = generateRandomString(8);
	}
	$target_dir = ("gyazo/" . $target_dir . "/");
	
	$file_name = basename($_FILES["imagedata"]["name"]);
	$target_file = $target_dir . $file_name;
	
	$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION)); //used to determine what kind of index.php we need
	
	$placeholder = "Image.php";
	if($imageFileType == "mp4") {
		$placeholder = "Video.php";
	}
	
	$file_name = generateRandomString(16) . "." . $imageFileType;
	$target_file = $target_dir . $file_name;
	
	
	// Output JSON
	function outputJSON($msg, $status = 'error'){
		die($domain . "/?error=" . $msg);
	}
	// Check for errors
	if($_FILES['imagedata']['error'] > 0){
		outputJSON('An error ocurred when uploading.');
	}
	if($_FILES["imagedata"]["size"] > 1.342e+8){ //2gb
		outputJSON('That file is to big!');
	}
	mkdir($target_dir);
	// Upload file
	if(!move_uploaded_file($_FILES['imagedata']['tmp_name'], $target_file)){
		outputJSON('Error uploading file - check destination is writeable.');
	}
	
	$contents = file_get_contents("Placeholders/" . $placeholder);
	
	if($placeholder == "Image.php") {
		$image_info = getimagesize($target_file);
		$image_width = $image_info[0];
		$image_height = $image_info[1];
		
		$contents = str_ireplace("%width%",$image_width,$contents);
		$contents = str_ireplace("%height%",$image_height,$contents);
	}
	
	$contents = str_ireplace("%filename%",$file_name,$contents);
	$fp = fopen($target_dir . "index.php","wb");
	fwrite($fp,$contents);
	fclose($fp);
	
	// Success!
	echo "$domain/$target_dir";
?>