Url.prototype.parse = function()

in src/WebUI/dotnet/WebPortal/wwwroot/js/elasticsearch-js/elasticsearch.jquery.js [13243:13502]


	Url.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {
	  if (!util.isString(url)) {
	    throw new TypeError("Parameter 'url' must be a string, not " + typeof url);
	  }

	  // Copy chrome, IE, opera backslash-handling behavior.
	  // Back slashes before the query string get converted to forward slashes
	  // See: https://code.google.com/p/chromium/issues/detail?id=25916
	  var queryIndex = url.indexOf('?'),
	      splitter =
	          (queryIndex !== -1 && queryIndex < url.indexOf('#')) ? '?' : '#',
	      uSplit = url.split(splitter),
	      slashRegex = /\\/g;
	  uSplit[0] = uSplit[0].replace(slashRegex, '/');
	  url = uSplit.join(splitter);

	  var rest = url;

	  // trim before proceeding.
	  // This is to support parse stuff like "  http://foo.com  \n"
	  rest = rest.trim();

	  if (!slashesDenoteHost && url.split('#').length === 1) {
	    // Try fast path regexp
	    var simplePath = simplePathPattern.exec(rest);
	    if (simplePath) {
	      this.path = rest;
	      this.href = rest;
	      this.pathname = simplePath[1];
	      if (simplePath[2]) {
	        this.search = simplePath[2];
	        if (parseQueryString) {
	          this.query = querystring.parse(this.search.substr(1));
	        } else {
	          this.query = this.search.substr(1);
	        }
	      } else if (parseQueryString) {
	        this.search = '';
	        this.query = {};
	      }
	      return this;
	    }
	  }

	  var proto = protocolPattern.exec(rest);
	  if (proto) {
	    proto = proto[0];
	    var lowerProto = proto.toLowerCase();
	    this.protocol = lowerProto;
	    rest = rest.substr(proto.length);
	  }

	  // figure out if it's got a host
	  // user@server is *always* interpreted as a hostname, and url
	  // resolution will treat //foo/bar as host=foo,path=bar because that's
	  // how the browser resolves relative URLs.
	  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
	    var slashes = rest.substr(0, 2) === '//';
	    if (slashes && !(proto && hostlessProtocol[proto])) {
	      rest = rest.substr(2);
	      this.slashes = true;
	    }
	  }

	  if (!hostlessProtocol[proto] &&
	      (slashes || (proto && !slashedProtocol[proto]))) {

	    // there's a hostname.
	    // the first instance of /, ?, ;, or # ends the host.
	    //
	    // If there is an @ in the hostname, then non-host chars *are* allowed
	    // to the left of the last @ sign, unless some host-ending character
	    // comes *before* the @-sign.
	    // URLs are obnoxious.
	    //
	    // ex:
	    // http://a@b@c/ => user:a@b host:c
	    // http://a@b?@c => user:a host:c path:/?@c

	    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
	    // Review our test case against browsers more comprehensively.

	    // find the first instance of any hostEndingChars
	    var hostEnd = -1;
	    for (var i = 0; i < hostEndingChars.length; i++) {
	      var hec = rest.indexOf(hostEndingChars[i]);
	      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
	        hostEnd = hec;
	    }

	    // at this point, either we have an explicit point where the
	    // auth portion cannot go past, or the last @ char is the decider.
	    var auth, atSign;
	    if (hostEnd === -1) {
	      // atSign can be anywhere.
	      atSign = rest.lastIndexOf('@');
	    } else {
	      // atSign must be in auth portion.
	      // http://a@b/c@d => host:b auth:a path:/c@d
	      atSign = rest.lastIndexOf('@', hostEnd);
	    }

	    // Now we have a portion which is definitely the auth.
	    // Pull that off.
	    if (atSign !== -1) {
	      auth = rest.slice(0, atSign);
	      rest = rest.slice(atSign + 1);
	      this.auth = decodeURIComponent(auth);
	    }

	    // the host is the remaining to the left of the first non-host char
	    hostEnd = -1;
	    for (var i = 0; i < nonHostChars.length; i++) {
	      var hec = rest.indexOf(nonHostChars[i]);
	      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))
	        hostEnd = hec;
	    }
	    // if we still have not hit it, then the entire thing is a host.
	    if (hostEnd === -1)
	      hostEnd = rest.length;

	    this.host = rest.slice(0, hostEnd);
	    rest = rest.slice(hostEnd);

	    // pull out port.
	    this.parseHost();

	    // we've indicated that there is a hostname,
	    // so even if it's empty, it has to be present.
	    this.hostname = this.hostname || '';

	    // if hostname begins with [ and ends with ]
	    // assume that it's an IPv6 address.
	    var ipv6Hostname = this.hostname[0] === '[' &&
	        this.hostname[this.hostname.length - 1] === ']';

	    // validate a little.
	    if (!ipv6Hostname) {
	      var hostparts = this.hostname.split(/\./);
	      for (var i = 0, l = hostparts.length; i < l; i++) {
	        var part = hostparts[i];
	        if (!part) continue;
	        if (!part.match(hostnamePartPattern)) {
	          var newpart = '';
	          for (var j = 0, k = part.length; j < k; j++) {
	            if (part.charCodeAt(j) > 127) {
	              // we replace non-ASCII char with a temporary placeholder
	              // we need this to make sure size of hostname is not
	              // broken by replacing non-ASCII by nothing
	              newpart += 'x';
	            } else {
	              newpart += part[j];
	            }
	          }
	          // we test again with ASCII char only
	          if (!newpart.match(hostnamePartPattern)) {
	            var validParts = hostparts.slice(0, i);
	            var notHost = hostparts.slice(i + 1);
	            var bit = part.match(hostnamePartStart);
	            if (bit) {
	              validParts.push(bit[1]);
	              notHost.unshift(bit[2]);
	            }
	            if (notHost.length) {
	              rest = '/' + notHost.join('.') + rest;
	            }
	            this.hostname = validParts.join('.');
	            break;
	          }
	        }
	      }
	    }

	    if (this.hostname.length > hostnameMaxLen) {
	      this.hostname = '';
	    } else {
	      // hostnames are always lower case.
	      this.hostname = this.hostname.toLowerCase();
	    }

	    if (!ipv6Hostname) {
	      // IDNA Support: Returns a punycoded representation of "domain".
	      // It only converts parts of the domain name that
	      // have non-ASCII characters, i.e. it doesn't matter if
	      // you call it with a domain that already is ASCII-only.
	      this.hostname = punycode.toASCII(this.hostname);
	    }

	    var p = this.port ? ':' + this.port : '';
	    var h = this.hostname || '';
	    this.host = h + p;
	    this.href += this.host;

	    // strip [ and ] from the hostname
	    // the host field still retains them, though
	    if (ipv6Hostname) {
	      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
	      if (rest[0] !== '/') {
	        rest = '/' + rest;
	      }
	    }
	  }

	  // now rest is set to the post-host stuff.
	  // chop off any delim chars.
	  if (!unsafeProtocol[lowerProto]) {

	    // First, make 100% sure that any "autoEscape" chars get
	    // escaped, even if encodeURIComponent doesn't think they
	    // need to be.
	    for (var i = 0, l = autoEscape.length; i < l; i++) {
	      var ae = autoEscape[i];
	      if (rest.indexOf(ae) === -1)
	        continue;
	      var esc = encodeURIComponent(ae);
	      if (esc === ae) {
	        esc = escape(ae);
	      }
	      rest = rest.split(ae).join(esc);
	    }
	  }


	  // chop off from the tail first.
	  var hash = rest.indexOf('#');
	  if (hash !== -1) {
	    // got a fragment string.
	    this.hash = rest.substr(hash);
	    rest = rest.slice(0, hash);
	  }
	  var qm = rest.indexOf('?');
	  if (qm !== -1) {
	    this.search = rest.substr(qm);
	    this.query = rest.substr(qm + 1);
	    if (parseQueryString) {
	      this.query = querystring.parse(this.query);
	    }
	    rest = rest.slice(0, qm);
	  } else if (parseQueryString) {
	    // no query string, but parseQueryString still requested
	    this.search = '';
	    this.query = {};
	  }
	  if (rest) this.pathname = rest;
	  if (slashedProtocol[lowerProto] &&
	      this.hostname && !this.pathname) {
	    this.pathname = '/';
	  }

	  //to support http.request
	  if (this.pathname || this.search) {
	    var p = this.pathname || '';
	    var s = this.search || '';
	    this.path = p + s;
	  }

	  // finally, reconstruct the href based on what has been validated.
	  this.href = this.format();
	  return this;
	};