Replace xhr auth with headers when using mozSystem, directly package sax.js, add license blocks. Fixes #1, #2, #3

5 files changed, 1418 insertions, 22 deletions

diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..edf4e17
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,14 @@
+Copyright 2012, Mozilla Foundation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
diff --git a/Makefile b/Makefile
index a16e8c4..4f47571 100644
--- a/Makefile
+++ b/Makefile
@@ -12,13 +12,14 @@ package: test-agent-config
 	cp ./node_modules/mocha/mocha.js $(VENDOR)
 	cp ./node_modules/mocha/mocha.css $(VENDOR)
 	cp ./node_modules/chai/chai.js $(VENDOR)
-	cp ./node_modules/sax/lib/sax.js $(VENDOR)
+	cp ./lib/sax.js $(VENDOR)
 	cp ./node_modules/test-agent/test-agent.js $(VENDOR)
 	cp ./node_modules/test-agent/test-agent.css $(VENDOR)
 
-
+	echo '/* sax js - LICENSE: https://github.com/isaacs/sax-js/blob/master/LICENSE */' >> $(WEB_FILE)
 	cat $(VENDOR)/sax.js >> $(WEB_FILE)
 	echo ';' >> $(WEB_FILE)
+	echo '/* caldav.js */' >> $(WEB_FILE)
 	cat $(LIB_ROOT)/caldav.js >> $(WEB_FILE)
 	cat $(LIB_ROOT)/ical.js >> $(WEB_FILE)
 	cat $(LIB_ROOT)/responder.js >> $(WEB_FILE)
@@ -33,10 +34,16 @@ package: test-agent-config
 	cat $(LIB_ROOT)/request/abstract.js >> $(WEB_FILE)
 	cat $(LIB_ROOT)/request/propfind.js >> $(WEB_FILE)
 	cat $(LIB_ROOT)/request/calendar_query.js >> $(WEB_FILE)
+	cat $(LIB_ROOT)/request/calendar_home.js >> $(WEB_FILE)
+	cat $(LIB_ROOT)/request/resources.js >> $(WEB_FILE)
 
 	cat $(LIB_ROOT)/request/index.js >> $(WEB_FILE)
 	cat $(LIB_ROOT)/sax/index.js >> $(WEB_FILE)
 	cat $(LIB_ROOT)/templates/index.js >> $(WEB_FILE)
+
+	cat $(LIB_ROOT)/resources/calendar.js >> $(WEB_FILE)
+	cat $(LIB_ROOT)/resources/index.js >> $(WEB_FILE)
+
 	cat $(LIB_ROOT)/index.js >> $(WEB_FILE)
 
 test: test-node test-browser
diff --git a/caldav.js b/caldav.js
index e659809..914a736 100644
--- a/caldav.js
+++ b/caldav.js
@@ -1,3 +1,4 @@
+/* sax js - LICENSE: https://github.com/isaacs/sax-js/blob/master/LICENSE */
 // wrapper for non-node envs
 ;(function (sax) {
 
@@ -72,22 +73,6 @@ function SAXParser (strict, opt) {
   emit(parser, "onready")
 }
 
-if (!Object.create) Object.create = function (o) {
-  function f () { this.__proto__ = o }
-  f.prototype = o
-  return new f
-}
-
-if (!Object.getPrototypeOf) Object.getPrototypeOf = function (o) {
-  return o.__proto__
-}
-
-if (!Object.keys) Object.keys = function (o) {
-  var a = []
-  for (var i in o) if (o.hasOwnProperty(i)) a.push(i)
-  return a
-}
-
 function checkBufferLength (parser) {
   var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)
     , maxActual = 0
@@ -1005,7 +990,9 @@ function write (chunk) {
 }
 
 })(typeof exports === "undefined" ? sax = {} : exports)
+
 ;
+/* caldav.js */
 (function(global, module) {
 
   /**
@@ -1863,6 +1850,18 @@ function write (chunk) {
     },
 
     /**
+     * @param {String} user basic auth user.
+     * @param {String} password basic auth pass.
+     * @return {String} basic auth token.
+     */
+    _credentials: function(user, pass) {
+      // this code should never run in nodejs.
+      return 'Basic ' + window.btoa(
+        user + ':' + pass
+      );
+    },
+
+    /**
      * Sends request to server.
      *
      * @param {Function} callback success/failure handler.
@@ -1882,10 +1881,18 @@ function write (chunk) {
 
       this.xhr = xhr;
 
-      if (Xhr.authHack) {
-        xhr.open(this.method, this.url, this.async);
-      } else {
+      // This hack is in place due to some platform
+      // bug in gecko when using mozSystem xhr
+      // the credentials only seem to work as expected
+      // when constructing them manually.
+      if (!this.globalXhrOptions || !this.globalXhrOptions.mozSystem) {
         xhr.open(this.method, this.url, this.async, this.user, this.password);
+      } else {
+        xhr.open(this.method, this.url, this.async);
+        xhr.setRequestHeader('Authorization', this._credentials(
+          this.user,
+          this.password
+        ));
       }
 
       for (header in this.headers) {
@@ -1894,7 +1901,6 @@ function write (chunk) {
         }
       }
 
-
       xhr.onreadystatechange = function onReadyStateChange() {
         var data;
         if (xhr.readyState === 4) {
@@ -2696,6 +2702,209 @@ function write (chunk) {
 ));
 (function(module, ns) {
 
+  /**
+   * Creates a propfind request.
+   *
+   * @param {Caldav.Connection} connection connection details.
+   * @param {Object} options options for propfind.
+   */
+  function CalendarHome(connection, options) {
+    var key;
+
+    if (typeof(options) === 'undefined') {
+      options = {};
+    }
+
+    for (key in options) {
+      if (options.hasOwnProperty(key)) {
+        this[key] = options[key];
+      }
+    }
+
+    this.connection = connection;
+  }
+
+  function findProperty(name, data, single) {
+    var url, results = [], prop;
+
+    for (url in data) {
+      if (data.hasOwnProperty(url)) {
+        if (name in data[url]) {
+          prop = data[url][name];
+          if (prop.status === '200') {
+            results.push(data[url][name].value);
+          }
+        }
+      }
+    }
+
+    if (!results.length)
+      return false;
+
+    if (typeof(single) !== 'undefined' && single) {
+      return results[0];
+    }
+
+    return results;
+  }
+
+  CalendarHome.prototype = {
+
+    Propfind: ns.require('request/propfind'),
+
+    _findPrincipal: function(url, callback) {
+      var find = new this.Propfind(this.connection, {
+        url: url
+      });
+
+      find.prop('current-user-principal');
+      find.prop('principal-URL');
+
+      find.send(function(err, data) {
+        var principal;
+
+        if (err) {
+          return callback(err);
+        }
+
+        principal = findProperty('current-user-principal', data, true);
+
+        if (!principal) {
+          principal = findProperty('principal-URL', data, true);
+        }
+
+        callback(null, principal);
+      });
+    },
+
+    _findCalendarHome: function(url, callback) {
+      var details = {};
+      var find = new this.Propfind(this.connection, {
+        url: url
+      });
+
+      find.prop(['caldav', 'calendar-home-set']);
+
+      find.send(function(err, data) {
+        if (err) {
+          return callback(err);
+        }
+
+        details = {
+          url: findProperty('calendar-home-set', data, true)
+        };
+
+        callback(null, details);
+      });
+    },
+
+    /**
+     * Starts request to find calendar home url
+     *
+     * @param {Function} callback node style where second argument
+     *                            are the details of the home calendar.
+     */
+    send: function(callback) {
+      var self = this;
+      self._findPrincipal(self.url, function(err, url) {
+
+        if (!url) {
+          return callback(new Error('Cannot resolve principal url'));
+        }
+
+        self._findCalendarHome(url, function(err, details) {
+          callback(err, details);
+        });
+      });
+    }
+
+  };
+
+  module.exports = CalendarHome;
+
+}.apply(
+  this,
+  (this.Caldav) ?
+    [Caldav('request/calendar_home'), Caldav] :
+    [module, require('../caldav')]
+));
+(function(module, ns) {
+
+  var Propfind = ns.require('request/propfind');
+
+  function Resources(connection, options) {
+    Propfind.apply(this, arguments);
+
+    this._resources = {};
+    this.depth = 1;
+  }
+
+  Resources.prototype = {
+    __proto__: Propfind.prototype,
+
+    addResource: function(name, handler) {
+      this._resources[name] = handler;
+    },
+
+    _processResult: function(req, callback) {
+      var results = {};
+      var url;
+      var root;
+      var collection;
+      var self = this;
+      var resources;
+
+      if ('multistatus' in this.sax.root) {
+        root = this.sax.root.multistatus;
+
+        for (url in root) {
+          collection = root[url];
+
+          resources = collection.resourcetype;
+
+          if (resources.value.forEach) {
+
+            resources.value.forEach(function(type) {
+              if (type in self._resources) {
+
+                if (!(type in results)) {
+                  results[type] = {};
+                }
+
+                results[type][url] = new self._resources[type](
+                  self.connection,
+                  collection
+                );
+
+                results[type][url].url = url;
+              }
+            });
+          }
+        }
+
+        callback(null, results, req);
+
+      } else {
+        //XXX: Improve error handling
+        callback(
+          new Error('unexpected xml result'),
+          this.sax.root, req
+        );
+      }
+    }
+
+  };
+
+  module.exports = Resources;
+
+}.apply(
+  this,
+  (this.Caldav) ?
+    [Caldav('request/resources'), Caldav] :
+    [module, require('../caldav')]
+));
+(function(module, ns) {
+
   module.exports = {
     Abstract: ns.require('request/abstract'),
     CalendarQuery: ns.require('request/calendar_query'),
@@ -2737,6 +2946,178 @@ function write (chunk) {
     [Caldav('templates'), Caldav] :
     [module, require('../caldav')]
 ));
+/**
+@namespace
+*/
+(function(module, ns) {
+
+  var CalendarQuery = ns.require('request/calendar_query');
+
+  /**
+   * Represents a (Web/Cal)Dav resource type.
+   *
+   * @param {Caldav.Connection} connection connection details.
+   * @param {Object} options public options on prototype.
+   */
+  function Calendar(connection, options) {
+    if (typeof(options) === 'undefined') {
+      options = {};
+    }
+
+    if (options.url) {
+      this.url = options.url;
+    }
+
+    this.connection = connection;
+    this.updateFromServer(options);
+  }
+
+  Calendar.prototype = {
+
+    _map: {
+      'displayname': 'name',
+
+      'calendar-color': 'color',
+
+      'calendar-description': 'description',
+
+      'getctag': 'ctag',
+      'getlastmodified': 'lastmodified',
+
+      'resourcetype': {
+        field: 'resourcetype',
+        defaults: []
+      },
+
+      'current-user-privilege-set': {
+        field: 'privilegeSet',
+        defaults: []
+      }
+
+    },
+
+    /**
+     * location of calendar resource
+     */
+    url: null,
+
+    /**
+     * displayname as defined by webdav spec
+     * Maps to: displayname
+     */
+    name: null,
+
+    /**
+     * color of calendar as defined by ical spec
+     * Maps to: calendar-color
+     */
+    color: null,
+
+    /**
+     * description of calendar as described by caldav spec
+     * Maps to: calendar-description
+     */
+    description: null,
+
+    /**
+     * change tag (as defined by calendarserver spec)
+     * used to determine if a change has occurred to this
+     * calendar resource.
+     *
+     * Maps to: getctag
+     */
+    ctag: null,
+
+    /**
+     * Resource types of this resource will
+     * always contain 'calendar'
+     *
+     * Maps to: resourcetype
+     *
+     * @type Array
+     */
+    resourcetype: null,
+
+    /**
+     * Set of privileges available to the user.
+     *
+     * Maps to: current-user-privilege-set
+     */
+    privilegeSet: null,
+
+    /**
+     * Updates calendar details from server.
+     */
+    updateFromServer: function(options) {
+      var key;
+      var defaultTo;
+      var mapName;
+      var value;
+      var descriptor;
+
+      if (typeof(options) === 'undefined') {
+        options = {};
+      }
+
+      for (key in options) {
+        if (options.hasOwnProperty(key)) {
+          if (key in this._map) {
+            descriptor = this._map[key];
+            value = options[key];
+
+            if (typeof(descriptor) === 'object') {
+              defaultTo = descriptor.defaults;
+              mapName = descriptor.field;
+            } else {
+              defaultTo = '';
+              mapName = descriptor;
+            }
+
+            if (value.status !== '200') {
+              this[mapName] = defaultTo;
+            } else {
+              this[mapName] = value.value;
+            }
+
+          }
+        }
+      }
+    },
+
+    /**
+     * Creates a query request for this calendar resource.
+     *
+     * @return {CalDav.Request.CalendarQuery} query object.
+     */
+    createQuery: function() {
+      return new CalendarQuery(this.connection, {
+        url: this.url
+      });
+    }
+
+  };
+
+  module.exports = Calendar;
+
+}.apply(
+  this,
+  (this.Caldav) ?
+    [Caldav('resources/calendar'), Caldav] :
+    [module, require('../caldav')]
+));
+(function(module, ns) {
+
+  module.exports = {
+    Calendar: ns.require('resources/calendar')
+  };
+
+}.apply(
+  this,
+  (this.Caldav) ?
+    [Caldav('resources'), Caldav] :
+    [module, require('../caldav')]
+));
+
 (function(module, ns) {
 
   var exports = module.exports;
diff --git a/lib/sax.js b/lib/sax.js
new file mode 100644
index 0000000..15cd7a2
--- /dev/null
+++ b/lib/sax.js
@@ -0,0 +1,992 @@
+// wrapper for non-node envs
+;(function (sax) {
+
+sax.parser = function (strict, opt) { return new SAXParser(strict, opt) }
+sax.SAXParser = SAXParser
+sax.SAXStream = SAXStream
+sax.createStream = createStream
+
+// When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns.
+// When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)),
+// since that's the earliest that a buffer overrun could occur.  This way, checks are
+// as rare as required, but as often as necessary to ensure never crossing this bound.
+// Furthermore, buffers are only tested at most once per write(), so passing a very
+// large string into write() might have undesirable effects, but this is manageable by
+// the caller, so it is assumed to be safe.  Thus, a call to write() may, in the extreme
+// edge case, result in creating at most one complete copy of the string passed in.
+// Set to Infinity to have unlimited buffers.
+sax.MAX_BUFFER_LENGTH = 64 * 1024
+
+var buffers = [
+  "comment", "sgmlDecl", "textNode", "tagName", "doctype",
+  "procInstName", "procInstBody", "entity", "attribName",
+  "attribValue", "cdata", "script"
+]
+
+sax.EVENTS = // for discoverability.
+  [ "text"
+  , "processinginstruction"
+  , "sgmldeclaration"
+  , "doctype"
+  , "comment"
+  , "attribute"
+  , "opentag"
+  , "closetag"
+  , "opencdata"
+  , "cdata"
+  , "closecdata"
+  , "error"
+  , "end"
+  , "ready"
+  , "script"
+  , "opennamespace"
+  , "closenamespace"
+  ]
+
+function SAXParser (strict, opt) {
+  if (!(this instanceof SAXParser)) return new SAXParser(strict, opt)
+
+  var parser = this
+  clearBuffers(parser)
+  parser.q = parser.c = ""
+  parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH
+  parser.opt = opt || {}
+  parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags;
+  parser.looseCase = parser.opt.lowercase ? "toLowerCase" : "toUpperCase"
+  parser.tags = []
+  parser.closed = parser.closedRoot = parser.sawRoot = false
+  parser.tag = parser.error = null
+  parser.strict = !!strict
+  parser.noscript = !!(strict || parser.opt.noscript)
+  parser.state = S.BEGIN
+  parser.ENTITIES = Object.create(sax.ENTITIES)
+  parser.attribList = []
+
+  // namespaces form a prototype chain.
+  // it always points at the current tag,
+  // which protos to its parent tag.
+  if (parser.opt.xmlns) parser.ns = Object.create(rootNS)
+
+  // mostly just for error reporting
+  parser.position = parser.line = parser.column = 0
+  emit(parser, "onready")
+}
+
+function checkBufferLength (parser) {
+  var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)
+    , maxActual = 0
+  for (var i = 0, l = buffers.length; i < l; i ++) {
+    var len = parser[buffers[i]].length
+    if (len > maxAllowed) {
+      // Text/cdata nodes can get big, and since they're buffered,
+      // we can get here under normal conditions.
+      // Avoid issues by emitting the text node now,
+      // so at least it won't get any bigger.
+      switch (buffers[i]) {
+        case "textNode":
+          closeText(parser)
+        break
+
+        case "cdata":
+          emitNode(parser, "oncdata", parser.cdata)
+          parser.cdata = ""
+        break
+
+        case "script":
+          emitNode(parser, "onscript", parser.script)
+          parser.script = ""
+        break
+
+        default:
+          error(parser, "Max buffer length exceeded: "+buffers[i])
+      }
+    }
+    maxActual = Math.max(maxActual, len)
+  }
+  // schedule the next check for the earliest possible buffer overrun.
+  parser.bufferCheckPosition = (sax.MAX_BUFFER_LENGTH - maxActual)
+                             + parser.position
+}
+
+function clearBuffers (parser) {
+  for (var i = 0, l = buffers.length; i < l; i ++) {
+    parser[buffers[i]] = ""
+  }
+}
+
+SAXParser.prototype =
+  { end: function () { end(this) }
+  , write: write
+  , resume: function () { this.error = null; return this }
+  , close: function () { return this.write(null) }
+  }
+
+try {
+  var Stream = require("stream").Stream
+} catch (ex) {
+  var Stream = function () {}
+}
+
+
+var streamWraps = sax.EVENTS.filter(function (ev) {
+  return ev !== "error" && ev !== "end"
+})
+
+function createStream (strict, opt) {
+  return new SAXStream(strict, opt)
+}
+
+function SAXStream (strict, opt) {
+  if (!(this instanceof SAXStream)) return new SAXStream(strict, opt)
+
+  Stream.apply(me)
+
+  this._parser = new SAXParser(strict, opt)
+  this.writable = true
+  this.readable = true
+
+
+  var me = this
+
+  this._parser.onend = function () {
+    me.emit("end")
+  }
+
+  this._parser.onerror = function (er) {
+    me.emit("error", er)
+
+    // if didn't throw, then means error was handled.
+    // go ahead and clear error, so we can write again.
+    me._parser.error = null
+  }
+
+  streamWraps.forEach(function (ev) {
+    Object.defineProperty(me, "on" + ev, {
+      get: function () { return me._parser["on" + ev] },
+      set: function (h) {
+        if (!h) {
+          me.removeAllListeners(ev)
+          return me._parser["on"+ev] = h
+        }
+        me.on(ev, h)
+      },
+      enumerable: true,
+      configurable: false
+    })
+  })
+}
+
+SAXStream.prototype = Object.create(Stream.prototype,
+  { constructor: { value: SAXStream } })
+
+SAXStream.prototype.write = function (data) {
+  this._parser.write(data.toString())
+  this.emit("data", data)
+  return true
+}
+
+SAXStream.prototype.end = function (chunk) {
+  if (chunk && chunk.length) this._parser.write(chunk.toString())
+  this._parser.end()
+  return true
+}
+
+SAXStream.prototype.on = function (ev, handler) {
+  var me = this
+  if (!me._parser["on"+ev] && streamWraps.indexOf(ev) !== -1) {
+    me._parser["on"+ev] = function () {
+      var args = arguments.length === 1 ? [arguments[0]]
+               : Array.apply(null, arguments)
+      args.splice(0, 0, ev)
+      me.emit.apply(me, args)
+    }
+  }
+
+  return Stream.prototype.on.call(me, ev, handler)
+}
+
+
+
+// character classes and tokens
+var whitespace = "\r\n\t "
+  // this really needs to be replaced with character classes.
+  // XML allows all manner of ridiculous numbers and digits.
+  , number = "0124356789"
+  , letter = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+  // (Letter | "_" | ":")
+  , nameStart = letter+"_:"
+  , nameBody = nameStart+number+"-."
+  , quote = "'\""
+  , entity = number+letter+"#"
+  , attribEnd = whitespace + ">"
+  , CDATA = "[CDATA["
+  , DOCTYPE = "DOCTYPE"
+  , XML_NAMESPACE = "http://www.w3.org/XML/1998/namespace"
+  , XMLNS_NAMESPACE = "http://www.w3.org/2000/xmlns/"
+  , rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE }
+
+// turn all the string character sets into character class objects.
+whitespace = charClass(whitespace)
+number = charClass(number)
+letter = charClass(letter)
+nameStart = charClass(nameStart)
+nameBody = charClass(nameBody)
+quote = charClass(quote)
+entity = charClass(entity)
+attribEnd = charClass(attribEnd)
+
+function charClass (str) {
+  return str.split("").reduce(function (s, c) {
+    s[c] = true
+    return s
+  }, {})
+}
+
+function is (charclass, c) {
+  return charclass[c]
+}
+
+function not (charclass, c) {
+  return !charclass[c]
+}
+
+var S = 0
+sax.STATE =
+{ BEGIN                     : S++
+, TEXT                      : S++ // general stuff
+, TEXT_ENTITY               : S++ // &amp and such.
+, OPEN_WAKA                 : S++ // <
+, SGML_DECL                 : S++ // <!BLARG
+, SGML_DECL_QUOTED          : S++ // <!BLARG foo "bar
+, DOCTYPE                   : S++ // <!DOCTYPE
+, DOCTYPE_QUOTED            : S++ // <!DOCTYPE "//blah
+, DOCTYPE_DTD               : S++ // <!DOCTYPE "//blah" [ ...
+, DOCTYPE_DTD_QUOTED        : S++ // <!DOCTYPE "//blah" [ "foo
+, COMMENT_STARTING          : S++ // <!-
+, COMMENT                   : S++ // <!--
+, COMMENT_ENDING            : S++ // <!-- blah -
+, COMMENT_ENDED             : S++ // <!-- blah --
+, CDATA                     : S++ // <![CDATA[ something
+, CDATA_ENDING              : S++ // ]
+, CDATA_ENDING_2            : S++ // ]]
+, PROC_INST                 : S++ // <?hi
+, PROC_INST_BODY            : S++ // <?hi there
+, PROC_INST_QUOTED          : S++ // <?hi "there
+, PROC_INST_ENDING          : S++ // <?hi "there" ?
+, OPEN_TAG                  : S++ // <strong
+, OPEN_TAG_SLASH            : S++ // <strong /
+, ATTRIB                    : S++ // <a
+, ATTRIB_NAME               : S++ // <a foo
+, ATTRIB_NAME_SAW_WHITE     : S++ // <a foo _
+, ATTRIB_VALUE              : S++ // <a foo=
+, ATTRIB_VALUE_QUOTED       : S++ // <a foo="bar
+, ATTRIB_VALUE_UNQUOTED     : S++ // <a foo=bar
+, ATTRIB_VALUE_ENTITY_Q     : S++ // <foo bar="&quot;"
+, ATTRIB_VALUE_ENTITY_U     : S++ // <foo bar=&quot;
+, CLOSE_TAG                 : S++ // </a
+, CLOSE_TAG_SAW_WHITE       : S++ // </a   >
+, SCRIPT                    : S++ // <script> ...
+, SCRIPT_ENDING             : S++ // <script> ... <
+}
+
+sax.ENTITIES =
+{ "apos" : "'"
+, "quot" : "\""
+, "amp"  : "&"
+, "gt"   : ">"
+, "lt"   : "<"
+}
+
+for (var S in sax.STATE) sax.STATE[sax.STATE[S]] = S
+
+// shorthand
+S = sax.STATE
+
+function emit (parser, event, data) {
+  parser[event] && parser[event](data)
+}
+
+function emitNode (parser, nodeType, data) {
+  if (parser.textNode) closeText(parser)
+  emit(parser, nodeType, data)
+}
+
+function closeText (parser) {
+  parser.textNode = textopts(parser.opt, parser.textNode)
+  if (parser.textNode) emit(parser, "ontext", parser.textNode)
+  parser.textNode = ""
+}
+
+function textopts (opt, text) {
+  if (opt.trim) text = text.trim()
+  if (opt.normalize) text = text.replace(/\s+/g, " ")
+  return text
+}
+
+function error (parser, er) {
+  closeText(parser)
+  er += "\nLine: "+parser.line+
+        "\nColumn: "+parser.column+
+        "\nChar: "+parser.c
+  er = new Error(er)
+  parser.error = er
+  emit(parser, "onerror", er)
+  return parser
+}
+
+function end (parser) {
+  if (parser.state !== S.TEXT) error(parser, "Unexpected end")
+  closeText(parser)
+  parser.c = ""
+  parser.closed = true
+  emit(parser, "onend")
+  SAXParser.call(parser, parser.strict, parser.opt)
+  return parser
+}
+
+function strictFail (parser, message) {
+  if (parser.strict) error(parser, message)
+}
+
+function newTag (parser) {
+  if (!parser.strict) parser.tagName = parser.tagName[parser.looseCase]()
+  var parent = parser.tags[parser.tags.length - 1] || parser
+    , tag = parser.tag = { name : parser.tagName, attributes : {} }
+
+  // will be overridden if tag contails an xmlns="foo" or xmlns:foo="bar"
+  if (parser.opt.xmlns) tag.ns = parent.ns
+  parser.attribList.length = 0
+}
+
+function qname (name) {
+  var i = name.indexOf(":")
+    , qualName = i < 0 ? [ "", name ] : name.split(":")
+    , prefix = qualName[0]
+    , local = qualName[1]
+
+  // <x "xmlns"="http://foo">
+  if (name === "xmlns") {
+    prefix = "xmlns"
+    local = ""
+  }
+
+  return { prefix: prefix, local: local }
+}
+
+function attrib (parser) {
+  if (!parser.strict) parser.attribName = parser.attribName[parser.looseCase]()
+  if (parser.opt.xmlns) {
+    var qn = qname(parser.attribName)
+      , prefix = qn.prefix
+      , local = qn.local
+
+    if (prefix === "xmlns") {
+      // namespace binding attribute; push the binding into scope
+      if (local === "xml" && parser.attribValue !== XML_NAMESPACE) {
+        strictFail( parser
+                  , "xml: prefix must be bound to " + XML_NAMESPACE + "\n"
+                  + "Actual: " + parser.attribValue )
+      } else if (local === "xmlns" && parser.attribValue !== XMLNS_NAMESPACE) {
+        strictFail( parser
+                  , "xmlns: prefix must be bound to " + XMLNS_NAMESPACE + "\n"
+                  + "Actual: " + parser.attribValue )
+      } else {
+        var tag = parser.tag
+          , parent = parser.tags[parser.tags.length - 1] || parser
+        if (tag.ns === parent.ns) {
+          tag.ns = Object.create(parent.ns)
+        }
+        tag.ns[local] = parser.attribValue
+      }
+    }
+
+    // defer onattribute events until all attributes have been seen
+    // so any new bindings can take effect; preserve attribute order
+    // so deferred events can be emitted in document order
+    parser.attribList.push([parser.attribName, parser.attribValue])
+  } else {
+    // in non-xmlns mode, we can emit the event right away
+    parser.tag.attributes[parser.attribName] = parser.attribValue
+    emitNode( parser
+            , "onattribute"
+            , { name: parser.attribName
+              , value: parser.attribValue } )
+  }
+
+  parser.attribName = parser.attribValue = ""
+}
+
+function openTag (parser, selfClosing) {
+  if (parser.opt.xmlns) {
+    // emit namespace binding events
+    var tag = parser.tag
+
+    // add namespace info to tag
+    var qn = qname(parser.tagName)
+    tag.prefix = qn.prefix
+    tag.local = qn.local
+    tag.uri = tag.ns[qn.prefix] || qn.prefix
+
+    if (tag.prefix && !tag.uri) {
+      strictFail(parser, "Unbound namespace prefix: "
+                       + JSON.stringify(parser.tagName))
+    }
+
+    var parent = parser.tags[parser.tags.length - 1] || parser
+    if (tag.ns && parent.ns !== tag.ns) {
+      Object.keys(tag.ns).forEach(function (p) {
+        emitNode( parser
+                , "onopennamespace"
+                , { prefix: p , uri: tag.ns[p] } )
+      })
+    }
+
+    // handle deferred onattribute events
+    for (var i = 0, l = parser.attribList.length; i < l; i ++) {
+      var nv = parser.attribList[i]
+      var name = nv[0]
+        , value = nv[1]
+        , qualName = qname(name)
+        , prefix = qualName.prefix
+        , local = qualName.local
+        , uri = tag.ns[prefix] || ""
+        , a = { name: name
+              , value: value
+              , prefix: prefix
+              , local: local
+              , uri: uri
+              }
+
+      // if there's any attributes with an undefined namespace,
+      // then fail on them now.
+      if (prefix && prefix != "xmlns" && !uri) {
+        strictFail(parser, "Unbound namespace prefix: "
+                         + JSON.stringify(prefix))
+        a.uri = prefix
+      }
+      parser.tag.attributes[name] = a
+      emitNode(parser, "onattribute", a)
+    }
+    parser.attribList.length = 0
+  }
+
+  // process the tag
+  parser.sawRoot = true
+  parser.tags.push(parser.tag)
+  emitNode(parser, "onopentag", parser.tag)
+  if (!selfClosing) {
+    // special case for <script> in non-strict mode.
+    if (!parser.noscript && parser.tagName.toLowerCase() === "script") {
+      parser.state = S.SCRIPT
+    } else {
+      parser.state = S.TEXT
+    }
+    parser.tag = null
+    parser.tagName = ""
+  }
+  parser.attribName = parser.attribValue = ""
+  parser.attribList.length = 0
+}
+
+function closeTag (parser) {
+  if (!parser.tagName) {
+    strictFail(parser, "Weird empty close tag.")
+    parser.textNode += "</>"
+    parser.state = S.TEXT
+    return
+  }
+  // first make sure that the closing tag actually exists.
+  // <a><b></c></b></a> will close everything, otherwise.
+  var t = parser.tags.length
+  var tagName = parser.tagName
+  if (!parser.strict) tagName = tagName[parser.looseCase]()
+  var closeTo = tagName
+  while (t --) {
+    var close = parser.tags[t]
+    if (close.name !== closeTo) {
+      // fail the first time in strict mode
+      strictFail(parser, "Unexpected close tag")
+    } else break
+  }
+
+  // didn't find it.  we already failed for strict, so just abort.
+  if (t < 0) {
+    strictFail(parser, "Unmatched closing tag: "+parser.tagName)
+    parser.textNode += "</" + parser.tagName + ">"
+    parser.state = S.TEXT
+    return
+  }
+  parser.tagName = tagName
+  var s = parser.tags.length
+  while (s --> t) {
+    var tag = parser.tag = parser.tags.pop()
+    parser.tagName = parser.tag.name
+    emitNode(parser, "onclosetag", parser.tagName)
+
+    var x = {}
+    for (var i in tag.ns) x[i] = tag.ns[i]
+
+    var parent = parser.tags[parser.tags.length - 1] || parser
+    if (parser.opt.xmlns && tag.ns !== parent.ns) {
+      // remove namespace bindings introduced by tag
+      Object.keys(tag.ns).forEach(function (p) {
+        var n = tag.ns[p]
+        emitNode(parser, "onclosenamespace", { prefix: p, uri: n })
+      })
+    }
+  }
+  if (t === 0) parser.closedRoot = true
+  parser.tagName = parser.attribValue = parser.attribName = ""
+  parser.attribList.length = 0
+  parser.state = S.TEXT
+}
+
+function parseEntity (parser) {
+  var entity = parser.entity.toLowerCase()
+    , num
+    , numStr = ""
+  if (parser.ENTITIES[entity]) return parser.ENTITIES[entity]
+  if (entity.charAt(0) === "#") {
+    if (entity.charAt(1) === "x") {
+      entity = entity.slice(2)
+      num = parseInt(entity, 16)
+      numStr = num.toString(16)
+    } else {
+      entity = entity.slice(1)
+      num = parseInt(entity, 10)
+      numStr = num.toString(10)
+    }
+  }
+  entity = entity.replace(/^0+/, "")
+  if (numStr.toLowerCase() !== entity) {
+    strictFail(parser, "Invalid character entity")
+    return "&"+parser.entity + ";"
+  }
+  return String.fromCharCode(num)
+}
+
+function write (chunk) {
+  var parser = this
+  if (this.error) throw this.error
+  if (parser.closed) return error(parser,
+    "Cannot write after close. Assign an onready handler.")
+  if (chunk === null) return end(parser)
+  var i = 0, c = ""
+  while (parser.c = c = chunk.charAt(i++)) {
+    parser.position ++
+    if (c === "\n") {
+      parser.line ++
+      parser.column = 0
+    } else parser.column ++
+    switch (parser.state) {
+
+      case S.BEGIN:
+        if (c === "<") parser.state = S.OPEN_WAKA
+        else if (not(whitespace,c)) {
+          // have to process this as a text node.
+          // weird, but happens.
+          strictFail(parser, "Non-whitespace before first tag.")
+          parser.textNode = c
+          parser.state = S.TEXT
+        }
+      continue
+
+      case S.TEXT:
+        if (parser.sawRoot && !parser.closedRoot) {
+          var starti = i-1
+          while (c && c!=="<" && c!=="&") {
+            c = chunk.charAt(i++)
+            if (c) {
+              parser.position ++
+              if (c === "\n") {
+                parser.line ++
+                parser.column = 0
+              } else parser.column ++
+            }
+          }
+          parser.textNode += chunk.substring(starti, i-1)
+        }
+        if (c === "<") parser.state = S.OPEN_WAKA
+        else {
+          if (not(whitespace, c) && (!parser.sawRoot || parser.closedRoot))
+            strictFail("Text data outside of root node.")
+          if (c === "&") parser.state = S.TEXT_ENTITY
+          else parser.textNode += c
+        }
+      continue
+
+      case S.SCRIPT:
+        // only non-strict
+        if (c === "<") {
+          parser.state = S.SCRIPT_ENDING
+        } else parser.script += c
+      continue
+
+      case S.SCRIPT_ENDING:
+        if (c === "/") {
+          emitNode(parser, "onscript", parser.script)
+          parser.state = S.CLOSE_TAG
+          parser.script = ""
+          parser.tagName = ""
+        } else {
+          parser.script += "<" + c
+          parser.state = S.SCRIPT
+        }
+      continue
+
+      case S.OPEN_WAKA:
+        // either a /, ?, !, or text is coming next.
+        if (c === "!") {
+          parser.state = S.SGML_DECL
+          parser.sgmlDecl = ""
+        } else if (is(whitespace, c)) {
+          // wait for it...
+        } else if (is(nameStart,c)) {
+          parser.startTagPosition = parser.position - 1
+          parser.state = S.OPEN_TAG
+          parser.tagName = c
+        } else if (c === "/") {
+          parser.startTagPosition = parser.position - 1
+          parser.state = S.CLOSE_TAG
+          parser.tagName = ""
+        } else if (c === "?") {
+          parser.state = S.PROC_INST
+          parser.procInstName = parser.procInstBody = ""
+        } else {
+          strictFail(parser, "Unencoded <")
+          parser.textNode += "<" + c
+          parser.state = S.TEXT
+        }
+      continue
+
+      case S.SGML_DECL:
+        if ((parser.sgmlDecl+c).toUpperCase() === CDATA) {
+          emitNode(parser, "onopencdata")
+          parser.state = S.CDATA
+          parser.sgmlDecl = ""
+          parser.cdata = ""
+        } else if (parser.sgmlDecl+c === "--") {
+          parser.state = S.COMMENT
+          parser.comment = ""
+          parser.sgmlDecl = ""
+        } else if ((parser.sgmlDecl+c).toUpperCase() === DOCTYPE) {
+          parser.state = S.DOCTYPE
+          if (parser.doctype || parser.sawRoot) strictFail(parser,
+            "Inappropriately located doctype declaration")
+          parser.doctype = ""
+          parser.sgmlDecl = ""
+        } else if (c === ">") {
+          emitNode(parser, "onsgmldeclaration", parser.sgmlDecl)
+          parser.sgmlDecl = ""
+          parser.state = S.TEXT
+        } else if (is(quote, c)) {
+          parser.state = S.SGML_DECL_QUOTED
+          parser.sgmlDecl += c
+        } else parser.sgmlDecl += c
+      continue
+
+      case S.SGML_DECL_QUOTED:
+        if (c === parser.q) {
+          parser.state = S.SGML_DECL
+          parser.q = ""
+        }
+        parser.sgmlDecl += c
+      continue
+
+      case S.DOCTYPE:
+        if (c === ">") {
+          parser.state = S.TEXT
+          emitNode(parser, "ondoctype", parser.doctype)
+          parser.doctype = true // just remember that we saw it.
+        } else {
+          parser.doctype += c
+          if (c === "[") parser.state = S.DOCTYPE_DTD
+          else if (is(quote, c)) {
+            parser.state = S.DOCTYPE_QUOTED
+            parser.q = c
+          }
+        }
+      continue
+
+      case S.DOCTYPE_QUOTED:
+        parser.doctype += c
+        if (c === parser.q) {
+          parser.q = ""
+          parser.state = S.DOCTYPE
+        }
+      continue
+
+      case S.DOCTYPE_DTD:
+        parser.doctype += c
+        if (c === "]") parser.state = S.DOCTYPE
+        else if (is(quote,c)) {
+          parser.state = S.DOCTYPE_DTD_QUOTED
+          parser.q = c
+        }
+      continue
+
+      case S.DOCTYPE_DTD_QUOTED:
+        parser.doctype += c
+        if (c === parser.q) {
+          parser.state = S.DOCTYPE_DTD
+          parser.q = ""
+        }
+      continue
+
+      case S.COMMENT:
+        if (c === "-") parser.state = S.COMMENT_ENDING
+        else parser.comment += c
+      continue
+
+      case S.COMMENT_ENDING:
+        if (c === "-") {
+          parser.state = S.COMMENT_ENDED
+          parser.comment = textopts(parser.opt, parser.comment)
+          if (parser.comment) emitNode(parser, "oncomment", parser.comment)
+          parser.comment = ""
+        } else {
+          parser.comment += "-" + c
+          parser.state = S.COMMENT
+        }
+      continue
+
+      case S.COMMENT_ENDED:
+        if (c !== ">") {
+          strictFail(parser, "Malformed comment")
+          // allow <!-- blah -- bloo --> in non-strict mode,
+          // which is a comment of " blah -- bloo "
+          parser.comment += "--" + c
+          parser.state = S.COMMENT
+        } else parser.state = S.TEXT
+      continue
+
+      case S.CDATA:
+        if (c === "]") parser.state = S.CDATA_ENDING
+        else parser.cdata += c
+      continue
+
+      case S.CDATA_ENDING:
+        if (c === "]") parser.state = S.CDATA_ENDING_2
+        else {
+          parser.cdata += "]" + c
+          parser.state = S.CDATA
+        }
+      continue
+
+      case S.CDATA_ENDING_2:
+        if (c === ">") {
+          if (parser.cdata) emitNode(parser, "oncdata", parser.cdata)
+          emitNode(parser, "onclosecdata")
+          parser.cdata = ""
+          parser.state = S.TEXT
+        } else if (c === "]") {
+          parser.cdata += "]"
+        } else {
+          parser.cdata += "]]" + c
+          parser.state = S.CDATA
+        }
+      continue
+
+      case S.PROC_INST:
+        if (c === "?") parser.state = S.PROC_INST_ENDING
+        else if (is(whitespace, c)) parser.state = S.PROC_INST_BODY
+        else parser.procInstName += c
+      continue
+
+      case S.PROC_INST_BODY:
+        if (!parser.procInstBody && is(whitespace, c)) continue
+        else if (c === "?") parser.state = S.PROC_INST_ENDING
+        else if (is(quote, c)) {
+          parser.state = S.PROC_INST_QUOTED
+          parser.q = c
+          parser.procInstBody += c
+        } else parser.procInstBody += c
+      continue
+
+      case S.PROC_INST_ENDING:
+        if (c === ">") {
+          emitNode(parser, "onprocessinginstruction", {
+            name : parser.procInstName,
+            body : parser.procInstBody
+          })
+          parser.procInstName = parser.procInstBody = ""
+          parser.state = S.TEXT
+        } else {
+          parser.procInstBody += "?" + c
+          parser.state = S.PROC_INST_BODY
+        }
+      continue
+
+      case S.PROC_INST_QUOTED:
+        parser.procInstBody += c
+        if (c === parser.q) {
+          parser.state = S.PROC_INST_BODY
+          parser.q = ""
+        }
+      continue
+
+      case S.OPEN_TAG:
+        if (is(nameBody, c)) parser.tagName += c
+        else {
+          newTag(parser)
+          if (c === ">") openTag(parser)
+          else if (c === "/") parser.state = S.OPEN_TAG_SLASH
+          else {
+            if (not(whitespace, c)) strictFail(
+              parser, "Invalid character in tag name")
+            parser.state = S.ATTRIB
+          }
+        }
+      continue
+
+      case S.OPEN_TAG_SLASH:
+        if (c === ">") {
+          openTag(parser, true)
+          closeTag(parser)
+        } else {
+          strictFail(parser, "Forward-slash in opening tag not followed by >")
+          parser.state = S.ATTRIB
+        }
+      continue
+
+      case S.ATTRIB:
+        // haven't read the attribute name yet.
+        if (is(whitespace, c)) continue
+        else if (c === ">") openTag(parser)
+        else if (c === "/") parser.state = S.OPEN_TAG_SLASH
+        else if (is(nameStart, c)) {
+          parser.attribName = c
+          parser.attribValue = ""
+          parser.state = S.ATTRIB_NAME
+        } else strictFail(parser, "Invalid attribute name")
+      continue
+
+      case S.ATTRIB_NAME:
+        if (c === "=") parser.state = S.ATTRIB_VALUE
+        else if (is(whitespace, c)) parser.state = S.ATTRIB_NAME_SAW_WHITE
+        else if (is(nameBody, c)) parser.attribName += c
+        else strictFail(parser, "Invalid attribute name")
+      continue
+
+      case S.ATTRIB_NAME_SAW_WHITE:
+        if (c === "=") parser.state = S.ATTRIB_VALUE
+        else if (is(whitespace, c)) continue
+        else {
+          strictFail(parser, "Attribute without value")
+          parser.tag.attributes[parser.attribName] = ""
+          parser.attribValue = ""
+          emitNode(parser, "onattribute",
+                   { name : parser.attribName, value : "" })
+          parser.attribName = ""
+          if (c === ">") openTag(parser)
+          else if (is(nameStart, c)) {
+            parser.attribName = c
+            parser.state = S.ATTRIB_NAME
+          } else {
+            strictFail(parser, "Invalid attribute name")
+            parser.state = S.ATTRIB
+          }
+        }
+      continue
+
+      case S.ATTRIB_VALUE:
+        if (is(whitespace, c)) continue
+        else if (is(quote, c)) {
+          parser.q = c
+          parser.state = S.ATTRIB_VALUE_QUOTED
+        } else {
+          strictFail(parser, "Unquoted attribute value")
+          parser.state = S.ATTRIB_VALUE_UNQUOTED
+          parser.attribValue = c
+        }
+      continue
+
+      case S.ATTRIB_VALUE_QUOTED:
+        if (c !== parser.q) {
+          if (c === "&") parser.state = S.ATTRIB_VALUE_ENTITY_Q
+          else parser.attribValue += c
+          continue
+        }
+        attrib(parser)
+        parser.q = ""
+        parser.state = S.ATTRIB
+      continue
+
+      case S.ATTRIB_VALUE_UNQUOTED:
+        if (not(attribEnd,c)) {
+          if (c === "&") parser.state = S.ATTRIB_VALUE_ENTITY_U
+          else parser.attribValue += c
+          continue
+        }
+        attrib(parser)
+        if (c === ">") openTag(parser)
+        else parser.state = S.ATTRIB
+      continue
+
+      case S.CLOSE_TAG:
+        if (!parser.tagName) {
+          if (is(whitespace, c)) continue
+          else if (not(nameStart, c)) strictFail(parser,
+            "Invalid tagname in closing tag.")
+          else parser.tagName = c
+        }
+        else if (c === ">") closeTag(parser)
+        else if (is(nameBody, c)) parser.tagName += c
+        else {
+          if (not(whitespace, c)) strictFail(parser,
+            "Invalid tagname in closing tag")
+          parser.state = S.CLOSE_TAG_SAW_WHITE
+        }
+      continue
+
+      case S.CLOSE_TAG_SAW_WHITE:
+        if (is(whitespace, c)) continue
+        if (c === ">") closeTag(parser)
+        else strictFail("Invalid characters in closing tag")
+      continue
+
+      case S.TEXT_ENTITY:
+      case S.ATTRIB_VALUE_ENTITY_Q:
+      case S.ATTRIB_VALUE_ENTITY_U:
+        switch(parser.state) {
+          case S.TEXT_ENTITY:
+            var returnState = S.TEXT, buffer = "textNode"
+          break
+
+          case S.ATTRIB_VALUE_ENTITY_Q:
+            var returnState = S.ATTRIB_VALUE_QUOTED, buffer = "attribValue"
+          break
+
+          case S.ATTRIB_VALUE_ENTITY_U:
+            var returnState = S.ATTRIB_VALUE_UNQUOTED, buffer = "attribValue"
+          break
+        }
+        if (c === ";") {
+          parser[buffer] += parseEntity(parser)
+          parser.entity = ""
+          parser.state = returnState
+        }
+        else if (is(entity, c)) parser.entity += c
+        else {
+          strictFail("Invalid character entity")
+          parser[buffer] += "&" + parser.entity + c
+          parser.entity = ""
+          parser.state = returnState
+        }
+      continue
+
+      default:
+        throw new Error(parser, "Unknown state: " + parser.state)
+    }
+  } // while
+  // cdata blocks can get very big under normal conditions. emit and move on.
+  // if (parser.state === S.CDATA && parser.cdata) {
+  //   emitNode(parser, "oncdata", parser.cdata)
+  //   parser.cdata = ""
+  // }
+  if (parser.position >= parser.bufferCheckPosition) checkBufferLength(parser)
+  return parser
+}
+
+})(typeof exports === "undefined" ? sax = {} : exports)
+
diff --git a/test/caldav/index_test.js b/test/caldav/index_test.js
index 24e45f2..969c3a1 100644
--- a/test/caldav/index_test.js
+++ b/test/caldav/index_test.js
@@ -29,6 +29,8 @@ suite('caldav', function() {
     assert.ok(root.Templates);
     assert.ok(root.Xhr);
     assert.ok(root.Connection);
+    assert.ok(root.Resources);
+    assert.ok(root.Resources.Calendar);
   });
 
 });