<?php

class HTTPRequest
{
    public $user;
    public $path;
    
    public $get;
    public $post;
    
    public static function fromGlobals($pathPrefix='/')
    {
        // path must start with pathPrefix
        assert(substr_compare($pathPrefix, $_SERVER['REQUEST_URI'], 0, strlen($pathPrefix)) == 0);
        
        $req = new HTTPRequest();
        
        $req->path = substr($_SERVER['REQUEST_URI'], strlen($pathPrefix));
        $parts = explode('?', $req->path);
        $req->path = $parts[0];
        
        
        $req->user = $_SERVER['REMOTE_USER'];
        $req->get = $_GET;
        $req->post = $_POST;
        
        return $req;
    }
}

class HTTPResponse
{
    public $status;
    public $data;
    public $headers;
    
    public function __construct($data, $status=200)
    {
        $this->data = $data;
        $this->status = $status;
        $this->headers = array();
    }
    
    public function addHeader($key, $value)
    {
        if(!array_key_exists($key, $this->headers))
        {
            $this->headers[$key] = array();
        }
        array_push($this->headers[$key], $value);
    }
    
    public function display()
    {
        header(sprintf("HTTP/1.1 %d", $this->status));
        
        foreach($this->headers as $header => $values)
        {
            foreach($values as $value)
            {
                header(sprintf("%s: %s", $header, $value), false);
            }
        }
        
        echo $this->data;
    }
}

?>