/* =====================================
MapMyFitness Partner Tool
(c) 2007 MapMyFitness LLC
===================================== */

/* =====================================
Constants
===================================== */
var _VERSION = '2';
var _CACHE_DIRECTORY = 'http://mmf.cachefly.net/partner_tool/' + _VERSION + '/';

/* =====================================
mmfPartnerGenerate
===================================== */
function mmfPartnerGenerate() {
	
	// =====================================
	// Declare Vars
	// =====================================	
	var htmlOutput = '';
	
	// =====================================
	// Check API Key
	// =====================================
	validateAPI();
	
	// =====================================
	// Automatically determine the base URL
	// =====================================
	var strURLBase = getBaseURL();

	// =====================================
	// Set iFrame Width / Height
	// =====================================
	var strWidth = "";
	var strHeight = "";
	if (mmf_settings["width"] != "auto") { strWidth = mmf_settings["width"]; }
	if (mmf_settings["height"] != "auto") { strHeight = mmf_settings["height"]; }

	// =====================================
	// Build Link & Write iFrame
	// =====================================
	htmlOutput += '    <iframe src="about:blank" id="mmf_frame" name="mmf_frame" title="MapMyFitness Partner Tool v2.1" frameborder="0" width="' + strWidth + '" height="' + strHeight + '"></iframe>' + '\n';
	document.write(htmlOutput);
	
	// =====================================
	// Create & Submit DOM Form
	// =====================================
	var frmPartner = createPostFrm(strURLBase + "index.php", "mmf_frame");

	for (var key in mmf_settings) {   
		frmPartner.appendChild(createHiddenInput("_mmf_pt_" + key, mmf_settings[key]));
	}

	document.body.appendChild(frmPartner);
	frmPartner.submit();
	document.body.removeChild(frmPartner);

}

/* =====================================
mmfEventGenerate
===================================== */
function mmfEventGenerate() {
	
	// =====================================
	// Declare Vars
	// =====================================	
	var htmlOutput = '';
	
	// =====================================
	// Check API Key
	// =====================================
	validateAPI();
	
	// =====================================
	// Automatically determine the base URL
	// =====================================
	var strURLBase = getBaseURL();

	// =====================================
	// Set iFrame Width / Height
	// =====================================
	var strWidth = "";
	var strHeight = "";
	if (mmf_settings["width"] != "auto") { strWidth = mmf_settings["width"]; }
	if (mmf_settings["height"] != "auto") { strHeight = mmf_settings["height"]; }

	// =====================================
	// Build Link & Write iFrame
	// =====================================
	htmlOutput += '    <iframe src="about:blank" id="mmf_frame" name="mmf_frame" title="MapMyFitness Partner Tool" frameborder="0" width="' + strWidth + '" height="' + strHeight + '"></iframe>' + '\n';
	document.write(htmlOutput);
	
	// =====================================
	// Create & Submit DOM Form
	// =====================================
	var frmPartner = createPostFrm(strURLBase + "event_detail.php?e=" + mmf_settings["EventKey"], "mmf_frame");

	for (var key in mmf_settings) {   
		frmPartner.appendChild(createHiddenInput(key, mmf_settings[key]));
	}

	document.body.appendChild(frmPartner);
	frmPartner.submit();
	document.body.removeChild(frmPartner);

}


/* =====================================
createHiddenInput
===================================== */
function createHiddenInput(name, value) {
	var ele = document.createElement('input');
	ele.type = 'hidden';
	ele.name = name;
	ele.value = value;
	return ele;
}

/* =====================================
getBaseURL
===================================== */
function getBaseURL() {
	var elScripts = document.getElementsByTagName('script');
	var strURLBase = 'http://ws.mapmyfitness.com/partner_tool/' + _VERSION + '/';
	
	//testing url
	//var strURLBase = 'http://kevin.sandbox.mapmyfitness.com:8080/partner_tool/';
	
	for(var i=0; i < elScripts.length; i++) {
		var s = elScripts[i];
		var strScriptSrc = s.src;
		var idx = s.src.indexOf('ws.mapmyfitness.com');
		if(idx > 0 && idx < 10) { 
			strURLBase = s.src.substring(idx) + '/';
		}
	}
	if (strURLBase.indexOf("http") == -1) {
		strURLBase = 'http://' + strURLBase;
	}
	return strURLBase;
}

/* =====================================
createPostFrm
===================================== */
function createPostFrm(url, target) {
	var frm = document.createElement('form');
	frm.action = url;
	frm.method = 'POST';
	frm.target = target;
	return frm;
}

/* =====================================
validateAPI
===================================== */
function validateAPI() {
	var strReferringLocation = window.location.href.split("/");
	var strReferringDomain = strReferringLocation[2];     
	var strKeyGen = MD5(strReferringDomain);
	if (strKeyGen != mmf_settings["api_key"]) {
		//alert('Invalid API Key for "' + strReferringDomain + '".\nPlease contact MapMyFitness, LLC.');
		//return false;
	} else {
		return true;
	}

}

/**  
*  
*  MD5 (Message-Digest Algorithm)  
*  http://www.webtoolkit.info/  
*  
**/  
  
var MD5 = function (string) {   
  
    function RotateLeft(lValue, iShiftBits) {   
        return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));   
    }   
  
    function AddUnsigned(lX,lY) {   
        var lX4,lY4,lX8,lY8,lResult;   
        lX8 = (lX & 0x80000000);   
        lY8 = (lY & 0x80000000);   
        lX4 = (lX & 0x40000000);   
        lY4 = (lY & 0x40000000);   
        lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);   
        if (lX4 & lY4) {   
            return (lResult ^ 0x80000000 ^ lX8 ^ lY8);   
        }   
        if (lX4 | lY4) {   
            if (lResult & 0x40000000) {   
                return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);   
            } else {   
                return (lResult ^ 0x40000000 ^ lX8 ^ lY8);   
            }   
        } else {   
            return (lResult ^ lX8 ^ lY8);   
        }   
    }   
  
    function F(x,y,z) { return (x & y) | ((~x) & z); }   
    function G(x,y,z) { return (x & z) | (y & (~z)); }   
    function H(x,y,z) { return (x ^ y ^ z); }   
    function I(x,y,z) { return (y ^ (x | (~z))); }   
  
    function FF(a,b,c,d,x,s,ac) {   
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));   
        return AddUnsigned(RotateLeft(a, s), b);   
    };   
  
    function GG(a,b,c,d,x,s,ac) {   
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));   
        return AddUnsigned(RotateLeft(a, s), b);   
    };   
  
    function HH(a,b,c,d,x,s,ac) {   
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));   
        return AddUnsigned(RotateLeft(a, s), b);   
    };   
  
    function II(a,b,c,d,x,s,ac) {   
        a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));   
        return AddUnsigned(RotateLeft(a, s), b);   
    };   
  
    function ConvertToWordArray(string) {   
        var lWordCount;   
        var lMessageLength = string.length;   
        var lNumberOfWords_temp1=lMessageLength + 8;   
        var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;   
        var lNumberOfWords = (lNumberOfWords_temp2+1)*16;   
        var lWordArray=Array(lNumberOfWords-1);   
        var lBytePosition = 0;   
        var lByteCount = 0;   
        while ( lByteCount < lMessageLength ) {   
            lWordCount = (lByteCount-(lByteCount % 4))/4;   
            lBytePosition = (lByteCount % 4)*8;   
            lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));   
            lByteCount++;   
        }   
        lWordCount = (lByteCount-(lByteCount % 4))/4;   
        lBytePosition = (lByteCount % 4)*8;   
        lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);   
        lWordArray[lNumberOfWords-2] = lMessageLength<<3;   
        lWordArray[lNumberOfWords-1] = lMessageLength>>>29;   
        return lWordArray;   
    };   
  
    function WordToHex(lValue) {   
        var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;   
        for (lCount = 0;lCount<=3;lCount++) {   
            lByte = (lValue>>>(lCount*8)) & 255;   
            WordToHexValue_temp = "0" + lByte.toString(16);   
            WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);   
        }   
        return WordToHexValue;   
    };   
  
    function Utf8Encode(string) {   
        string = string.replace(/\r\n/g,"\n");   
        var utftext = "";   
  
        for (var n = 0; n < string.length; n++) {   
  
            var c = string.charCodeAt(n);   
  
            if (c < 128) {   
                utftext += String.fromCharCode(c);   
            }   
            else if((c > 127) && (c < 2048)) {   
                utftext += String.fromCharCode((c >> 6) | 192);   
                utftext += String.fromCharCode((c & 63) | 128);   
            }   
            else {   
                utftext += String.fromCharCode((c >> 12) | 224);   
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);   
                utftext += String.fromCharCode((c & 63) | 128);   
            }   
  
        }   
  
        return utftext;   
    };   
  
    var x=Array();   
    var k,AA,BB,CC,DD,a,b,c,d;   
    var S11=7, S12=12, S13=17, S14=22;   
    var S21=5, S22=9 , S23=14, S24=20;   
    var S31=4, S32=11, S33=16, S34=23;   
    var S41=6, S42=10, S43=15, S44=21;   
  
    string = Utf8Encode(string);   
  
    x = ConvertToWordArray(string);   
  
    a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;   
  
    for (k=0;k<x.length;k+=16) {   
        AA=a; BB=b; CC=c; DD=d;   
        a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);   
        d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);   
        c=FF(c,d,a,b,x[k+2], S13,0x242070DB);   
        b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);   
        a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);   
        d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);   
        c=FF(c,d,a,b,x[k+6], S13,0xA8304613);   
        b=FF(b,c,d,a,x[k+7], S14,0xFD469501);   
        a=FF(a,b,c,d,x[k+8], S11,0x698098D8);   
        d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);   
        c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);   
        b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);   
        a=FF(a,b,c,d,x[k+12],S11,0x6B901122);   
        d=FF(d,a,b,c,x[k+13],S12,0xFD987193);   
        c=FF(c,d,a,b,x[k+14],S13,0xA679438E);   
        b=FF(b,c,d,a,x[k+15],S14,0x49B40821);   
        a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);   
        d=GG(d,a,b,c,x[k+6], S22,0xC040B340);   
        c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);   
        b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);   
        a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);   
        d=GG(d,a,b,c,x[k+10],S22,0x2441453);   
        c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);   
        b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);   
        a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);   
        d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);   
        c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);   
        b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);   
        a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);   
        d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);   
        c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);   
        b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);   
        a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);   
        d=HH(d,a,b,c,x[k+8], S32,0x8771F681);   
        c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);   
        b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);   
        a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);   
        d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);   
        c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);   
        b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);   
        a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);   
        d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);   
        c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);   
        b=HH(b,c,d,a,x[k+6], S34,0x4881D05);   
        a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);   
        d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);   
        c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);   
        b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);   
        a=II(a,b,c,d,x[k+0], S41,0xF4292244);   
        d=II(d,a,b,c,x[k+7], S42,0x432AFF97);   
        c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);   
        b=II(b,c,d,a,x[k+5], S44,0xFC93A039);   
        a=II(a,b,c,d,x[k+12],S41,0x655B59C3);   
        d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);   
        c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);   
        b=II(b,c,d,a,x[k+1], S44,0x85845DD1);   
        a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);   
        d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);   
        c=II(c,d,a,b,x[k+6], S43,0xA3014314);   
        b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);   
        a=II(a,b,c,d,x[k+4], S41,0xF7537E82);   
        d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);   
        c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);   
        b=II(b,c,d,a,x[k+9], S44,0xEB86D391);   
        a=AddUnsigned(a,AA);   
        b=AddUnsigned(b,BB);   
        c=AddUnsigned(c,CC);   
        d=AddUnsigned(d,DD);   
    }   
  
    var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);   
  
    return temp.toLowerCase();   
}