/**
 * Urls du service d'authentification
 */	var authService = "/trafiz/loginService.php";
/**
 * Objet de requete HTTP
 */	var httpRequest = false; 
/**
 * Si a true redirige sur index.php
 */	var redirectAfterAuth = false;
/**
 * Indique si l'on crypte l'échange
 */ var crypt = true;
/**
 * Date du jour
 */ var now = new Date();
/**
 * Crée la session et login
 */
function rpcLogin(login, pass) { 
	if(crypt) {
		tps 	= hex_md5(now.getTime());
		login 	= hex_md5(login);
		pass 	= hex_md5(pass);
	}
	rpcCall(authService+'?l='+login+tps+pass);
}
/**
 * Détruit la session et logout
 */
function rpcLogout() {
	rpcCall(authService+'?logout=1');
}
/**
 * Effectue la requête sur un autre serveur
 * @param string url
 */
function rpcCall(url) {
	httpRequest = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest) {
    	try {
			httpRequest = new XMLHttpRequest();
        } catch(e) {
			httpRequest = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		httpRequest = false;
        	}
		}
    }
	if(!httpRequest) {
		document.write("<iframe src='"+url+"' style='display:none;visibility:hidden'></iframe>");
		return false;
	}
	httpRequest.onreadystatechange = isAuthOk; 
	httpRequest.open('GET', url, true, "authentification", "Auth2000");
	httpRequest.send(null);
	return true;
}
/**
 * Teste le retour de l'appel RPC
 */
function isAuthOk() { 
	if (httpRequest.readyState == 4) { 
		if (httpRequest.status == 200) { 
			if(httpRequest.responseText == 1) {
				if(redirectAfterAuth) document.location.href = redirectAfterAuth;
				displayAuthResult("OK");
				return true;
			}
			else {
				displayAuthResult(httpRequest.responseText);
			}
		} 
		else {
			displayAuthResult("Erreur RPC");
		} 
	} 
	return false;
}
function displayAuthResult(msg) {
	el = document.getElementById("loginError");
	if(!el) {
		return false
	}
	enabledAll("loginForm");
	el.innerHTML = msg;
}
/***
* Rend disabled tous les champs du formulaires
*/
function disabledAll(f) {
	for(var i = 0; i < document.forms[f].length; i++) {
		var e = document.forms[f].elements[i];
		e.disabled = true;
	}
}
/***
* Rend enable tous les champs du formulaire
*/
function enabledAll(f) {
	for(var i = 0; i < document.forms[f].length; i++) {
		var e = document.forms[f].elements[i];
		e.disabled = false;
	}
}
/**
 * Extrait le login et le passe, verifie le formulaire et fais une authentification RPC
 */
function login() {
	l = document.getElementById("identifiant");
	p = document.getElementById("mot_de_passe");

	l.value 	= hex_md5(l.value);
	p.value 	= hex_md5(p.value);
	return true;
}
/**
 * Fais un logout
 */
function logout() {
	if(top) top.location.href = redirectAfterAuth+"?logout=1";
	else document.location.href = redirectAfterAuth+"?logout=1";
	return false;
}

var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
var b64pad  = ""; /* base-64 pad character. "=" for strict RFC compliance   */
var chrsz   = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */

/*
* These are the functions you'll usually want to call
* They take string arguments and return either hex or base-64 encoded strings
*/
function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}
function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));}
function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));}
function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }
function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }
function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }

/*
* Perform a simple self-test to see if the VM is working
*/
function md5_vm_test() { return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; }

/*
* Calculate the MD5 of an array of little-endian words, and a bit length
*/
function core_md5(x, len) {
	/* append padding */
	x[len >> 5] |= 0x80 << ((len) % 32);
	x[(((len + 64) >>> 9) << 4) + 14] = len;

	var a =  1732584193;
	var b = -271733879;
	var c = -1732584194;
	var d =  271733878;

	for(var i = 0; i < x.length; i += 16) {
		var olda = a; var oldb = b; var oldc = c; var oldd = d;

		a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
		d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
		c = md5_ff(c, d, a, b, x[i+ 2], 17,  606105819);
		b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
		a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
		d = md5_ff(d, a, b, c, x[i+ 5], 12,  1200080426);
		c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
		b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
		a = md5_ff(a, b, c, d, x[i+ 8], 7 ,  1770035416);
		d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
		c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
		b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
		a = md5_ff(a, b, c, d, x[i+12], 7 ,  1804603682);
		d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
		c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
		b = md5_ff(b, c, d, a, x[i+15], 22,  1236535329);

		a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
		d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
		c = md5_gg(c, d, a, b, x[i+11], 14,  643717713);
		b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
		a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
		d = md5_gg(d, a, b, c, x[i+10], 9 ,  38016083);
		c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
		b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
		a = md5_gg(a, b, c, d, x[i+ 9], 5 ,  568446438);
		d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
		c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
		b = md5_gg(b, c, d, a, x[i+ 8], 20,  1163531501);
		a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
		d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
		c = md5_gg(c, d, a, b, x[i+ 7], 14,  1735328473);
		b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

		a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
		d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
		c = md5_hh(c, d, a, b, x[i+11], 16,  1839030562);
		b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
		a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
		d = md5_hh(d, a, b, c, x[i+ 4], 11,  1272893353);
		c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
		b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
		a = md5_hh(a, b, c, d, x[i+13], 4 ,  681279174);
		d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
		c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
		b = md5_hh(b, c, d, a, x[i+ 6], 23,  76029189);
		a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
		d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
		c = md5_hh(c, d, a, b, x[i+15], 16,  530742520);
		b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

		a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
		d = md5_ii(d, a, b, c, x[i+ 7], 10,  1126891415);
		c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
		b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
		a = md5_ii(a, b, c, d, x[i+12], 6 ,  1700485571);
		d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
		c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
		b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
		a = md5_ii(a, b, c, d, x[i+ 8], 6 ,  1873313359);
		d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
		c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
		b = md5_ii(b, c, d, a, x[i+13], 21,  1309151649);
		a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
		d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
		c = md5_ii(c, d, a, b, x[i+ 2], 15,  718787259);
		b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

		a = safe_add(a, olda);
		b = safe_add(b, oldb);
		c = safe_add(c, oldc);
		d = safe_add(d, oldd);
	}
	return Array(a, b, c, d);
}

/*
* These functions implement the four basic operations the algorithm uses.
*/
function md5_cmn(q, a, b, x, s, t) { return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); }
function md5_ff(a, b, c, d, x, s, t) { return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); }
function md5_gg(a, b, c, d, x, s, t) { return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); }
function md5_hh(a, b, c, d, x, s, t) { return md5_cmn(b ^ c ^ d, a, b, x, s, t); }
function md5_ii(a, b, c, d, x, s, t) { return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); }
/*
* Calculate the HMAC-MD5, of a key and some data
*/
function core_hmac_md5(key, data) {
	var bkey = str2binl(key);
	if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);

	var ipad = Array(16), opad = Array(16);
	for(var i = 0; i < 16; i++) {
		ipad[i] = bkey[i] ^ 0x36363636;
		opad[i] = bkey[i] ^ 0x5C5C5C5C;
	}

	var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
	return core_md5(opad.concat(hash), 512 + 128);
}

/*
* Add integers, wrapping at 2^32. This uses 16-bit operations internally
* to work around bugs in some JS interpreters.
*/
function safe_add(x, y) {
	var lsw = (x & 0xFFFF) + (y & 0xFFFF);
	var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
	return (msw << 16) | (lsw & 0xFFFF);
}

/*
* Bitwise rotate a 32-bit number to the left.
*/
function bit_rol(num, cnt) {
	return (num << cnt) | (num >>> (32 - cnt));
}

/*
* Convert a string to an array of little-endian words
* If chrsz is ASCII, characters >255 have their hi-byte silently ignored.
*/
function str2binl(str) {
	var bin = Array();
	var mask = (1 << chrsz) - 1;
	for(var i = 0; i < str.length * chrsz; i += chrsz) bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
	return bin;
}

/*
* Convert an array of little-endian words to a string
*/
function binl2str(bin) {
	var str = "";
	var mask = (1 << chrsz) - 1;
	for(var i = 0; i < bin.length * 32; i += chrsz)	str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
	return str;
}

/*
* Convert an array of little-endian words to a hex string.
*/
function binl2hex(binarray) {
	var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
	var str = "";
	for(var i = 0; i < binarray.length * 4; i++) str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + hex_tab.charAt((binarray[i>>2] >> ((i%4)*8  )) & 0xF);
	return str;
}

/*
* Convert an array of little-endian words to a base-64 string
*/
function binl2b64(binarray) {
	var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
	var str = "";
	for(var i = 0; i < binarray.length * 4; i += 3) {
		var triplet = (((binarray[i   >> 2] >> 8 * ( i   %4)) & 0xFF) << 16) | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) |  ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
		for(var j = 0; j < 4; j++) {
			if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
			else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
		}
	}
	return str;
}