/web/js/dojo/src/uri/Uri.js

dojo.provide("dojo.uri.Uri");



dojo.uri = new function() {

	this.dojoUri = function (/*dojo.uri.Uri||String*/uri) {

		// summary: returns a Uri object resolved relative to the dojo root

		return new dojo.uri.Uri(dojo.hostenv.getBaseScriptUri(), uri);

	}



	this.moduleUri = function(/*String*/module, /*dojo.uri.Uri||String*/uri){

		// summary: returns a Uri object relative to a module

		// description: Examples: dojo.uri.moduleUri("dojo.widget","templates/template.html"), or dojo.uri.moduleUri("acme","images/small.png")

		var loc = dojo.hostenv.getModuleSymbols(module).join('/');

		if(!loc){

			return null;

		}

		if(loc.lastIndexOf("/") != loc.length-1){

			loc += "/";

		}

		

		//If the path is an absolute path (starts with a / or is on another domain/xdomain)

		//then don't add the baseScriptUri.

		var colonIndex = loc.indexOf(":");

		var slashIndex = loc.indexOf("/");

		if(loc.charAt(0) != "/" && (colonIndex == -1 || colonIndex > slashIndex)){

			loc = dojo.hostenv.getBaseScriptUri() + loc;

		}



		return new dojo.uri.Uri(loc,uri);

	}



	this.Uri = function (/*dojo.uri.Uri||String...*/) {

		// summary: Constructor to create an object representing a URI.

		// description: 

		//  Each argument is evaluated in order relative to the next until

		//  a canonical uri is produced. To get an absolute Uri relative

		//  to the current document use

		//      new dojo.uri.Uri(document.baseURI, uri)



		// TODO: support for IPv6, see RFC 2732



		// resolve uri components relative to each other

		var uri = arguments[0];

		for (var i = 1; i < arguments.length; i++) {

			if(!arguments[i]) { continue; }



			// Safari doesn't support this.constructor so we have to be explicit

			var relobj = new dojo.uri.Uri(arguments[i].toString());

			var uriobj = new dojo.uri.Uri(uri.toString());



			if ((relobj.path=="")&&(relobj.scheme==null)&&(relobj.authority==null)&&(relobj.query==null)) {

				if (relobj.fragment != null) { uriobj.fragment = relobj.fragment; }

				relobj = uriobj;

			} else if (relobj.scheme == null) {

				relobj.scheme = uriobj.scheme;



				if (relobj.authority == null) {

					relobj.authority = uriobj.authority;



					if (relobj.path.charAt(0) != "/") {

						var path = uriobj.path.substring(0,

							uriobj.path.lastIndexOf("/") + 1) + relobj.path;



						var segs = path.split("/");

						for (var j = 0; j < segs.length; j++) {

							if (segs[j] == ".") {

								if (j == segs.length - 1) { segs[j] = ""; }

								else { segs.splice(j, 1); j--; }

							} else if (j > 0 && !(j == 1 && segs[0] == "") &&

								segs[j] == ".." && segs[j-1] != "..") {



								if (j == segs.length - 1) { segs.splice(j, 1); segs[j - 1] = ""; }

								else { segs.splice(j - 1, 2); j -= 2; }

							}

						}

						relobj.path = segs.join("/");

					}

				}

			}



			uri = "";

			if (relobj.scheme != null) { uri += relobj.scheme + ":"; }

			if (relobj.authority != null) { uri += "//" + relobj.authority; }

			uri += relobj.path;

			if (relobj.query != null) { uri += "?" + relobj.query; }

			if (relobj.fragment != null) { uri += "#" + relobj.fragment; }

		}



		this.uri = uri.toString();



		// break the uri into its main components

		var regexp = "^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?$";

		var r = this.uri.match(new RegExp(regexp));



		this.scheme = r[2] || (r[1] ? "" : null);

		this.authority = r[4] || (r[3] ? "" : null);

		this.path = r[5]; // can never be undefined

		this.query = r[7] || (r[6] ? "" : null);

		this.fragment  = r[9] || (r[8] ? "" : null);



		if (this.authority != null) {

			// server based naming authority

			regexp = "^((([^:]+:)?([^@]+))@)?([^:]*)(:([0-9]+))?$";

			r = this.authority.match(new RegExp(regexp));



			this.user = r[3] || null;

			this.password = r[4] || null;

			this.host = r[5];

			this.port = r[7] || null;

		}



		this.toString = function(){ return this.uri; }

	}

};