nette.ajax.js Experimental Extension - displays some FireLogger info as flash message

firelogger.ajax.js

(function($, undefined) {
/**
 * Shows HTTP Error Statuses and some FireLogger info from Ajax request
 */
$.nette.ext('httpStatusToFlash', {
	start: function (xhr) {
		xhr.setRequestHeader("X-FireLogger", '1.2');
		return xhr;
	},
	error: function (payload) {
		var flashMessages = $('#snippet--flashMessages');
		var html = "";
		if (payload.status != 200) {
			html += '<h4>'+payload.status+' '+payload.statusText+'</h4>';
		}
		var headers = payload.getAllResponseHeaders();
		var matches = headers.match(/FireLogger[-a-z0-9]+/);
		if (matches != null) {
			for (var i=0;i<matches.length;i++)
			{
				var firelog = jQuery.parseJSON(this.base64decode(payload.getResponseHeader(matches[i])));
				//console.log(firelog);
				firelog = firelog.logs[0];
				html += '<p>'+firelog.template+'</p><p>'+this.editorLink(firelog.pathname,firelog.lineno)+'</p>';
			}
		}
		flashMessages.html('<div class="alert alert-error"><a class="close" data-dismiss="alert">×</a>'+html+'</div>');
	}
}, {
		editorLink: function (link,lineno) {
			return '<b>File:</b> <a title="'+link+':'+lineno+'" href="editor://open/?file='+encodeURIComponent(link)+'&line='+lineno+'">'+link+'</a> <b>Line:</b> '+lineno;
		},
		/* http://www.webtoolkit.info/javascript-base64.html */
		_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
		// base64 decode
		base64decode : function (input) {
			var output = "";
			var chr1, chr2, chr3;
			var enc1, enc2, enc3, enc4;
			var i = 0;
	 
			input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
	 
			while (i < input.length) {
	 
				enc1 = this._keyStr.indexOf(input.charAt(i++));
				enc2 = this._keyStr.indexOf(input.charAt(i++));
				enc3 = this._keyStr.indexOf(input.charAt(i++));
				enc4 = this._keyStr.indexOf(input.charAt(i++));
	 
				chr1 = (enc1 << 2) | (enc2 >> 4);
				chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
				chr3 = ((enc3 & 3) << 6) | enc4;
	 
				output = output + String.fromCharCode(chr1);
	 
				if (enc3 != 64) {
					output = output + String.fromCharCode(chr2);
				}
				if (enc4 != 64) {
					output = output + String.fromCharCode(chr3);
				}
	 
			}
	 
			output = this._utf8_decode(output);
	 
			return output;
	 
		},
		_utf8_decode : function (utftext) {
			var string = "";
			var i = 0;
			var c = c1 = c2 = 0;
	 
			while ( i < utftext.length ) {
	 
				c = utftext.charCodeAt(i);
	 
				if (c < 128) {
					string += String.fromCharCode(c);
					i++;
				}
				else if((c > 191) && (c < 224)) {
					c2 = utftext.charCodeAt(i+1);
					string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
					i += 2;
				}
				else {
					c2 = utftext.charCodeAt(i+1);
					c3 = utftext.charCodeAt(i+2);
					string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
					i += 3;
				}
	 
			}
	 
			return string;
		}
});

})(jQuery);