<?php
    // Set namespace
    namespace legalai\api;

    // Set session timeout and start session
    $lifetime = 1800;
    session_set_cookie_params( $lifetime ); // 30 min
    session_start();

    // Set useragent
    ini_set( 'user_agent', 'Mozilla/5.0 (Windows; U; Windows NT 5.1; nb-NO; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 GTB5 (.NET CLR 3.5.30729)' );

    # Init
    define( 'LEGALAI[timer][start]', microtime(true) );

    // Config
    require_once( './config.blk' );

    // Classes
    require_once( constant( 'LEGALAI[init][path]' ) .'/classes/legalai_common.class' );

    # Initiate class
    $legalai_co = new Common;

    // Create Kviq state object
    $state = (object)[
	    'env'=>(object)[],
	    'input'=>(object)[],
	    'access'=>(object)[],
	];

    # Put the info into the variables
    define( 'LEGALAI[env][d]', getenv( 'HTTP_HOST' ) );
    define( 'LEGALAI[env][p]', getenv( 'SCRIPT_NAME' ) );
    define( 'LEGALAI[env][q]', getenv( 'QUERY_STRING' ) );
    define( 'LEGALAI[env][r]', getenv( 'HTTP_REFERER' ) );
    define( 'LEGALAI[env][a]', getenv( 'HTTP_USER_AGENT' ) );
    define( 'LEGALAI[env][i]', getenv( 'REMOTE_ADDR' ) );
    define( 'LEGALAI[env][m]', strtolower( getenv( 'REQUEST_METHOD' ) ) );
    define( 'LEGALAI[env][s]', ( getenv( 'HTTPS' ) == 'on' ? 'https' : 'http' ) );

    # Make patameter array (state)
    $state->env->uri_parameters = $legalai_co->make_parameter_array( constant( 'LEGALAI[env][d]' ), constant( 'LEGALAI[env][p]' ), constant( 'LEGALAI[env][q]' ), constant( 'LEGALAI[env][m]' ), $_POST, $_FILES );

    # Force https
    if ( constant( 'LEGALAI[env][s]' ) != constant( 'LEGALAI[init][http_protocol]' ) ){
        $url = 'https://'. constant( 'LEGALAI[env][d]' ) . ( constant( 'LEGALAI[env][p]' ) == '/' ? '' : constant( 'LEGALAI[env][p]' ) ) . ( constant( 'LEGALAI[env][q]' ) == '' ? '' : '?'. constant( 'LEGALAI[env][q]' ) );
        $url = preg_replace( '!index\.(html|php)$!', '', $url );
        header( 'HTTP/1.1 301 Moved Permanently' );
        header( 'location: '. $url );
        $legalai_co->do_exit();
    } else {
	// Set subdomain
	define( 'LEGALAI[init][subdomain]', preg_replace( '!\..*$!', '', constant( 'LEGALAI[env][d]' ) ) );
    }

    # REDIRECT ( r.legalai.as )
    if ( ( $state->env->uri_parameters['d'][0] ?? null ) == 'r' ){

	if ( preg_match( '!^[0-9a-zA-Z]{8}$!', $state->env->uri_parameters['c'][0] ) ){

	    require_once( constant( 'LEGALAI[init][path]' ) .'/blocks/url-shortener.blk' );
	}

	$legalai_co->do_exit();

    # Path: w(\d+)
    } elseif ( isset( $state->env->uri_parameters['c'][0] ) and preg_match( '!^w(\d+)$!', $state->env->uri_parameters['c'][0], $match ) and !isset( $state->env->uri_parameters['c'][1] ) ){

	$state->env->type = 'WEB-'. $match[1];
	$state->env->timestamp = time();
	$state->env->translations = $legalai_co->get_translations( constant( 'LEGALAI[init][path]' ) .'/translations.json', constant( 'LEGALAI[init][language]' ) );
	$state->env->categories = $legalai_co->get_categories( constant( 'LEGALAI[init][path]' ) .'/categories.json', constant( 'LEGALAI[init][language]' ) );

	if ( file_exists( constant( 'LEGALAI[init][path]' ) .'/blocks/w-'. $match[1] .'.blk' ) ){
	    require_once( constant( 'LEGALAI[init][path]' ) .'/blocks/w-'. $match[1] .'.blk' );
	}

	$legalai_co->do_exit();

    # CDN: pdf
#    } elseif ( isset( $state->env->uri_parameters['c'][0] ) and preg_match( '!^cdn$!', $state->env->uri_parameters['c'][0], $match ) and isset( $state->env->uri_parameters['c'][1] ) and preg_match( '!^[A-Za-z0-9]{'. constant( 'LEGALAI[access][caseid][length]' ) .'}$!', $state->env->uri_parameters['c'][1] ) and isset( $state->env->uri_parameters['c'][2] ) and preg_match( '!\.pdf$!', $state->env->uri_parameters['c'][2] ) ){
    } elseif ( isset( $state->env->uri_parameters['c'][0] ) and preg_match( '!^cdn$!', $state->env->uri_parameters['c'][0], $match ) and isset( $state->env->uri_parameters['c'][1] ) and preg_match( '!\.pdf$!', $state->env->uri_parameters['c'][1] ) ){

	usleep(100);
	$catid = preg_replace( '![^a-f0-9]!', '', $_COOKIE['catid'] );

	// Get Mysql class
	require_once( constant( 'LEGALAI[init][path]' ) .'/classes/legalai_mysql.class' );
	$db = new Mysql( constant( 'LEGALAI[db][database_name]' ), constant( 'LEGALAI[db][username]' ), constant( 'LEGALAI[db][password]' ) );

	$sql = "select CASEID from CASEINFO where SHA2( concat( SHA2( CASEID, 512 ), CASE_ACCESS_TOKEN, CASE_EMAIL_TOKEN, INIT_TIMESTAMP, '". constant( 'LEGALAI[env][i]' ) ."' ), 512 )='". $catid ."' and STATUS='open' and STATE='active'";
        if ( $db->query( $sql ) and $db->num_rows() == 1 and $row = current( $db->result() ) ){
            $caseid = $row->CASEID;

	    $filename = constant( 'LEGALAI[init][path]' ) .'/data/'. $caseid .'/documents/'. utf8_encode( basename( $state->env->uri_parameters['c'][1] ) );
	    if ( file_exists( $filename ) ){
		header( 'content-type:application/pdf' );
		echo file_get_contents( $filename );
	    } else {
		header( "HTTP/1.0 404 Not Found" );
	    }
	} else {
	    header( "HTTP/1.0 404 Not Found" );
	}
	$legalai_co->do_exit();

    # CDN: mp3
    } elseif ( isset( $state->env->uri_parameters['c'][0] ) and preg_match( '!^cdn$!', $state->env->uri_parameters['c'][0], $match ) and isset( $state->env->uri_parameters['c'][1] ) and preg_match( '!\.mp3$!', $state->env->uri_parameters['c'][1] ) ){

	usleep(100);
	$filename = constant('LEGALAI[init][path]') . '/audio/' . utf8_encode( basename( $state->env->uri_parameters['c'][1] ) );

	if ( file_exists( $filename ) ){
    	    header('Content-Type: audio/mpeg');
    	    header('Pragma: cache');
    	    header('Cache-Control: max-age=86400, must-revalidate');

    	    echo file_get_contents( $filename );
	} else {
    	    header( "HTTP/1.0 404 Not Found" );
	}
	$legalai_co->do_exit();

    # CDN: mp4
    } elseif ( isset( $state->env->uri_parameters['c'][0] ) and preg_match( '!^cdn$!', $state->env->uri_parameters['c'][0], $match ) and isset( $state->env->uri_parameters['c'][1] ) and preg_match( '!\.mp4$!', $state->env->uri_parameters['c'][1] ) ){

	usleep(100);
	$catid = preg_replace( '![^a-f0-9]!', '', $_COOKIE['catid'] );

	// Get Mysql class
	require_once( constant( 'LEGALAI[init][path]' ) .'/classes/legalai_mysql.class' );
	$db = new Mysql( constant( 'LEGALAI[db][database_name]' ), constant( 'LEGALAI[db][username]' ), constant( 'LEGALAI[db][password]' ) );

	$sql = "select CASEID from CASEINFO where SHA2( concat( SHA2( CASEID, 512 ), CASE_ACCESS_TOKEN, CASE_EMAIL_TOKEN, INIT_TIMESTAMP, '". constant( 'LEGALAI[env][i]' ) ."' ), 512 )='". $catid ."' and STATUS='open' and STATE='active'";
        if ( $db->query( $sql ) and $db->num_rows() == 1 and $row = current( $db->result() ) ){
            $caseid = $row->CASEID;

	    $filename = constant( 'LEGALAI[init][path]' ) .'/data/'. $caseid .'/documents/'. utf8_encode( basename( $state->env->uri_parameters['c'][1] ) );
	    if ( file_exists( $filename ) ){

		$filesize = filesize( $filename );
		$start = 0;
		$end = $filesize - 1;

		if ( isset($_SERVER['HTTP_RANGE']) and preg_match('/bytes=(\d+)-(\d*)/', $_SERVER['HTTP_RANGE'], $matches) ){
		    $start = intval($matches[1]);
		    if ( $matches[2] !== '' ){
    			$end = intval($matches[2]);
		    }

		    if ( $end >= $filesize ){
    			$end = $filesize - 1;
		    }

		    header("HTTP/1.1 206 Partial Content");
		    header("Content-Range: bytes $start-$end/$filesize");
		} else {
		    header("HTTP/1.1 200 OK");
		}

		$length = $end - $start + 1;

		header("Accept-Ranges: bytes");
		header("Content-Type: video/mp4");
		header("Content-Length: $length");

		$fp = fopen($filename, 'rb');
		fseek($fp, $start);
		while ( !feof($fp) and ftell($fp) <= $end ){
		    echo fread($fp, 8192);
		    flush();
		}
		fclose($fp);

	    } else {
		header( "HTTP/1.0 404 Not Found" );
	    }
	} else {
	    header( "HTTP/1.0 404 Not Found" );
	}
	$legalai_co->do_exit();

    # Logout
    } elseif ( isset( $state->env->uri_parameters['c'][0] ) and $state->env->uri_parameters['c'][0] == 'utlogging' ){

	header( 'HTTP/1.1 301 Moved Permanently' );
        header( 'location: /w1#utlogging' );
        $legalai_co->do_exit();

    } else {
	header( 'HTTP/1.1 301 Moved Permanently' );
        header( 'location: /w1' );

	echo time();
        $legalai_co->do_exit();
    }
?>