Merge pull request #1 from GTSimeonov/master

rararrararararraar

8 files changed, 316 insertions, 0 deletions

diff --git a/php/configuration.php b/php/configuration.php
new file mode 100644
index 0000000..6b87508
--- /dev/null
+++ b/php/configuration.php
@@ -0,0 +1,17 @@
+<?php
+/*should be placed outside of document root*/
+
+$domain_name="localhost";
+
+$database_name="adam";
+$database_username="adam";
+$database_password="asdfd";
+$database_location="127.0.0.1";
+
+
+
+$password_hash_algo=PASSWORD_BCRYPT;
+
+
+$has_email_verification=false;
+?>
diff --git a/php/database.php b/php/database.php
new file mode 100644
index 0000000..ef2b825
--- /dev/null
+++ b/php/database.php
@@ -0,0 +1,112 @@
+<?php 
+require_once "configuration.php";
+require_once "user.php";
+require_once "misc.php";
+
+/*handles database stuff*/
+	class Database
+	{
+		private $pdo;
+
+
+		public function __construct()
+		{
+			global $domain_name;
+			global $database_name;
+			global $database_username;
+			global $database_password;
+			global $database_location;
+			try
+			{
+				$this->pdo=new PDO("mysql:dbname={$database_name};host={$database_location}",$database_username,$database_password);
+			}catch(PDOException $e)
+			{
+				error_log("Could not get database {$database_name} from {$database_location}, {$e} ");
+				die("The cow bought the farm");
+			}
+		}
+
+		/*returns false if this isn't a user, otherwise returns the user*/
+		function get_user(string $user) 
+		{
+			$ret=new User;
+
+			$prep=$this->pdo->prepare("select user_id,username,email from users where username=:username");
+			$prep->bindParam(':username',$user);
+
+			$prep->execute();
+
+			$hold=$prep->fetch(PDO::FETCH_ASSOC);
+
+			if($hold)
+			{
+				$ret->user_id=$hold["user_id"];
+				$ret->username=$hold["username"];
+				$ret->email_address=$hold["email"];
+				return $ret;
+			}else
+			{
+				return false;
+			}
+		}
+		/*returns false if this isn't a user or the password is incorrect, otherwise returns the userid*/
+		function authenticate(string $user, string $password) 
+		{
+			$ret=new User;
+
+			$prep=$this->pdo->prepare("select user_id,username,email,password from users where username=:username");
+			$prep->bindParam(':username',$user);
+			$prep->execute();
+
+			$hold=$prep->fetch(PDO::FETCH_ASSOC);
+
+			if($hold)
+			{
+				if(password_verify($password,$hold["password"]))
+				{
+					$ret->user_id=$hold["user_id"];
+					$ret->username=$hold["username"];
+					$ret->email_address=$hold["email"];
+					return $ret;
+				}else
+				{
+					return false;
+				}
+			}else
+			{
+				return false;
+			}
+		}
+		/*returns false if username is taken, email is not checked here*/
+		function register_user(string $user,string $password,string $email) : bool
+		{
+			$hold=$this->get_user($user);
+			global $domain_name;
+			global $has_email_verification;
+			global $password_hash_algo;
+
+
+			if($hold)
+			{
+				return false;
+			}else
+			{
+				if($has_email_verification)
+				{
+					generate_email_verification_link();
+				}else
+				{
+					$hashed_pass=password_hash($password,$password_hash_algo);
+					$prep=$this->pdo->prepare("insert into users(username,password,email) values(:username,:password,:email)");
+					$prep->bindParam(':username',$user);
+					$prep->bindParam(':password',$hashed_pass);
+					$prep->bindParam(':email',$email);
+					$prep->execute();
+				}
+				return true;
+			}
+		}
+	}
+
+
+?>
diff --git a/php/file_type_recogniser.php b/php/file_type_recogniser.php
new file mode 100644
index 0000000..f160fb7
--- /dev/null
+++ b/php/file_type_recogniser.php
@@ -0,0 +1,84 @@
+<?php
+
+function file_type($path_to_file) {
+	$file_type_database = new finfo(FILEINFO_SYMLINK|FILEINFO_MIME_TYPE);
+	return $file_type_database->file($path_to_file);
+}
+
+
+function file_extension($path_to_file) {
+	#FILEINFO_EXTENSION introduced in php7.2.0 https://www.php.net/manual/en/fileinfo.constants.php
+	if(defined("FILEINFO_EXTENSION"))
+	{
+		$file_type_database = new finfo(FILEINFO_EXTENSION);
+		return "." . $file_type_database->file($path_to_file);
+	}else
+	{
+		$result=file_type($path_to_file);
+
+		$optimus_prime = array(
+			'text/plain'=>'.txt',
+			'text/html'=>'.html',
+			'text/php'=>'.php',
+			'text/css'=>'.css',
+			'application/javascript'=>'.js',
+			'application/json'=>'.json',
+			'application/xml'=>'.xml',
+			'application/x-shockwave-flash'=>'.swf',
+			'video/x-flv'=>'.flv',
+			'image/png'=>'.png',
+			'image/jpeg'=>'.jpe',
+			'image/jpeg'=>'.jpeg',
+			'image/jpeg'=>'.jpg',
+			'image/gif'=>'.gif',
+			'image/bmp'=>'.bmp',
+			'image/vnd.microsoft.icon'=>'.ico',
+			'image/tiff'=>'.tiff',
+			'image/tiff'=>'.tif',
+			'image/svg+xml'=>'.svg',
+			'image/svg+xml'=>'.svgz',
+			'application/zip'=>'.zip',
+			'application/x-rar-compressed'=>'.rar',
+			'application/x-msdownload'=>'.exe',
+			'application/x-msdownload'=>'.msi',
+			'application/vnd.ms-cab-compressed'=>'.cab',
+			'audio/mpeg'=>'.mp3',
+			'video/quicktime'=>'.qt',
+			'video/quicktime'=>'.mov',
+			'application/pdf'=>'.pdf',
+			'image/vnd.adobe.photoshop'=>'.psd',
+			'application/postscript'=>'.ai',
+			'application/postscript'=>'.eps',
+			'application/postscript'=>'.ps',
+			'application/msword'=>'.doc',
+			'application/rtf'=>'.rtf',
+			'application/vnd.ms-excel'=>'.xls',
+			'application/vnd.ms-powerpoint'=>'.ppt',
+			'application/vnd.oasis.opendocument.text'=>'.odt',
+			'application/vnd.oasis.opendocument.spreadsheet'=>'.ods'
+		);
+
+		if(!array_key_exists($result,$optimus_prime))
+		{
+			return ".dat";
+		}else
+		{
+			return $optimus_prime[$result];
+		}
+
+	}
+}
+
+function get_icon($path_to_file)
+{
+	$file_ext="svg/icons/".file_extension($path_to_file).".svg";
+	if(!file_exists($file_ext))
+	{
+		return "svg/icons/.dat.svg";
+	}else
+	{
+		return $file_ext;
+	}
+}
+
+?>
diff --git a/php/login.php b/php/login.php
new file mode 100644
index 0000000..e6d44dc
--- /dev/null
+++ b/php/login.php
@@ -0,0 +1,25 @@
+<?php
+require_once "user.php";
+require_once "database.php";
+require_once "misc.php";
+
+$username=$_POST["username"];
+$password=$_POST["password"];
+/*server side verification*/
+if(gettype($username)!="string" || gettype($password)!="string")
+{
+	die("You didn't specify the pass or the username");
+}
+
+$database=new Database();
+$user=$database->authenticate($username,$password);
+if(!$user)
+{
+	die("Password or username is incorrect");
+}
+
+echo "Username: {$user->username}\n";
+echo "Email: {$user->email_address}";
+
+
+?>
diff --git a/php/misc.php b/php/misc.php
new file mode 100644
index 0000000..3ab0277
--- /dev/null
+++ b/php/misc.php
@@ -0,0 +1,18 @@
+<?php
+require_once "user.php";
+
+function validate_credentials(string $username,string $email,string $password,string $password2) : bool
+{
+	return true;
+}
+
+function generate_email_verification_link()
+{
+	/*TODO*/
+	$url="{$domain_name}/register/"+random_bytes(20);
+	mail($email,"Registration at ${domain_name}","Click here to register {$url}.");
+}
+
+
+
+?>
diff --git a/php/register.php b/php/register.php
new file mode 100644
index 0000000..b6b164c
--- /dev/null
+++ b/php/register.php
@@ -0,0 +1,27 @@
+<?php
+require_once "database.php";
+require_once "misc.php";
+require_once "configuration.php";
+
+$username=$_POST["username"];
+$password=$_POST["password"];
+$password2=$_POST["password2"];
+$email=$_POST["email"];
+
+/*check if we are given shady credentials*/
+if(!validate_credentials($username,$email,$password,$password2))
+{
+	error_log("Invalid registration that has probbably bypassed client side verification. This could be an attack!");
+	die();
+}
+$database= new Database;
+
+if($database->register_user($username,$password,$email))
+{
+	echo "registered";
+}else
+{
+	echo "didn't register";
+}
+
+?>
diff --git a/php/upload.php b/php/upload.php
new file mode 100644
index 0000000..93fa778
--- /dev/null
+++ b/php/upload.php
@@ -0,0 +1,23 @@
+<?php 
+
+if (!array_key_exists('uf', $_FILES)) {
+	http_response_code(400);
+	exit();
+}
+
+
+$file = $_FILES['uf'];
+
+
+if (file['error'] != 0) {
+	http_response_code(400);
+	exit();
+}
+
+$m = md5_file($file['tmp_name']);
+
+copy($file['tmp_name'], "screen/$m.png");
+
+echo "http://india.fmi.fail/screen/$m.png";
+
+?>
diff --git a/php/user.php b/php/user.php
new file mode 100644
index 0000000..1ef3083
--- /dev/null
+++ b/php/user.php
@@ -0,0 +1,10 @@
+<?php
+	class User
+	{
+		/*I don't think we need to abstract these away*/
+		public $user_id;
+		public $username;
+		public $email_address;
+	}
+
+?>