diff options
| -rw-r--r-- | caldav.js | 2607 |
1 files changed, 2607 insertions, 0 deletions
diff --git a/caldav.js b/caldav.js new file mode 100644 index 0000000..c7d8e04 --- /dev/null +++ b/caldav.js @@ -0,0 +1,2607 @@ +// 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") +} + +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 + 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++ // & 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=""" +, ATTRIB_VALUE_ENTITY_U : S++ // <foo bar=" +, 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) +; +(function(global, module) { + + /** + * Define a list of paths + * this will only be used in the browser. + */ + var paths = {}; + + + /** + * Exports object is a shim + * we use in the browser to + * create an object that will behave much + * like module.exports + */ + function Exports(path) { + this.path = path; + } + + Exports.prototype = { + + /** + * Unified require between browser/node. + * Path is relative to this file so you + * will want to use it like this from any depth. + * + * + * var Leaf = ns.require('sub/leaf'); + * + * + * @param {String} path path lookup relative to this file. + */ + require: function exportRequire(path) { + if (typeof(window) === 'undefined') { + return require(require('path').join(__dirname, path)); + } else { + return paths[path]; + } + }, + + /** + * Maps exports to a file path. + */ + set exports(val) { + return paths[this.path] = val; + }, + + get exports() { + return paths[this.path]; + } + }; + + /** + * Module object constructor. + * + * + * var module = Module('sub/leaf'); + * module.exports = function Leaf(){} + * + * + * @constructor + * @param {String} path file path. + */ + function Module(path) { + return new Exports(path); + } + + Module.require = Exports.prototype.require; + Module.exports = Module; + Module._paths = paths; + + + /** + * Reference self as exports + * which also happens to be the constructor + * so you can assign items to the namespace: + * + * //assign to Module.X + * //assume module.exports is Module + * module.exports.X = Foo; //Module.X === Foo; + * Module.exports('foo'); //creates module.exports object. + * + */ + module.exports = Module; + + /** + * In the browser assign + * to a global namespace + * obviously 'Module' would + * be whatever your global namespace is. + */ + if (this.window) + window.Caldav = Module; + +}( + this, + (typeof(module) === 'undefined') ? + {} : + module +)); + +(function(module, ns) { + // Credit: Andreas Gal - I removed the callback / xhr logic + + // Iterate over all entries if x is an array, otherwise just call fn on x. + + /* Pattern for an individual entry: name:value */ + var ENTRY = /^([A-Za-z0-9-]+)((?:;[A-Za-z0-9-]+=(?:"[^"]+"|[^";:,]+)(?:,(?:"[^"]+"|[^";:,]+))*)*):(.*)$/; + + /* Pattern for an individual parameter: name=value[,value] */ + var PARAM = /;([A-Za-z0-9-]+)=((?:"[^"]+"|[^";:,]+)(?:,(?:"[^"]+"|[^";:,]+))*)/g; + + /* Pattern for an individual parameter value: value | "value" */ + var PARAM_VALUE = /,?("[^"]+"|[^";:,]+)/g; + + // Parse a calendar in iCal format. + function ParseICal(text) { + // Parse the text into an object graph + var lines = text.replace(/\r/g, '').split('\n'); + var tos = Object.create(null); + var stack = [tos]; + + // Parse parameters for an entry. Foramt: <param>=<pvalue>[;...] + function parseParams(params) { + var map = Object.create(null); + var param = PARAM.exec(params); + while (param) { + var values = []; + var value = PARAM_VALUE.exec(param[2]); + while (value) { + values.push(value[1].replace(/^"(.*)"$/, '$1')); + value = PARAM_VALUE.exec(param[2]); + } + map[param[1].toLowerCase()] = (values.length > 1 ? values : values[0]); + param = PARAM.exec(params); + } + return map; + } + + // Add a property to the current object. If a property with the same name + // already exists, turn it into an array. + function add(prop, value, params) { + if (params) + value = { parameters: parseParams(params), value: value }; + if (prop in tos) { + var previous = tos[prop]; + if (previous instanceof Array) { + previous.push(value); + return; + } + value = [previous, value]; + } + tos[prop] = value; + } + + for (var n = 0; n < lines.length; ++n) { + var line = lines[n]; + // check whether the line continues (next line stats with space or tab) + var nextLine; + while ((nextLine = lines[n+1]) && (nextLine[0] === ' ' || nextLine[0] === '\t')) { + line += nextLine.substr(1); + ++n; + continue; + } + // parse the entry, format is 'PROPERTY:VALUE' + var matches = ENTRY.exec(line); + + if (!matches) { + throw new Error('invalid format'); + } + + var prop = matches[1].toLowerCase(); + var params = matches[2]; + var value = matches[3]; + switch (prop) { + case 'begin': + var obj = Object.create(null); + add(value.toLowerCase(), obj); + stack.push(tos = obj); + break; + case 'end': + stack.pop(); + tos = stack[stack.length - 1]; + if (stack.length == 1) { + var cal = stack[0]; + if (typeof cal.vcalendar !== 'object' || cal.vcalendar instanceof Array) { + throw new Error('single vcalendar object expected'); + } + + return cal.vcalendar; + } + break; + default: + add(prop, value, params); + break; + } + } + throw new Error('unexpected end of file'); + } + + function Value(v) { + return (typeof v !== 'object') ? v : v.value; + } + + function Parameter(v, name) { + if (typeof v !== 'object') + return undefined; + return v.parameters[name]; + } + + // Parse a time specification. + function ParseDateTime(v) { + var dt = Value(v); + if (Parameter(v, 'VALUE') === 'DATE') { + // 20081202 + return new Date(dt.substr(0, 4), dt.substr(4, 2), dt.substr(6, 2)); + } + v = Value(v); + // 20120426T130000Z + var year = dt.substr(0, 4); + var month = dt.substr(4, 2) - 1; + var day = dt.substr(6, 2); + var hour = dt.substr(9, 2); + var min = dt.substr(11, 2); + var sec = dt.substr(13, 2); + if (dt[15] == 'Z') { + return new Date(Date.UTC(year, month, day, hour, min, sec)); + } + return new Date(year, month, day, hour, min, sec); + } + + module.exports = ParseICal; + +}.apply( + this, + (this.Caldav) ? + [Caldav('ical'), Caldav] : + [module, require('./caldav')] +)); + +/** +@namespace +*/ +(function(module, ns) { + console.log(ns); + /** + * Constructor + * + * @param {Object} list of events to add onto responder. + */ + function Responder(events) { + this._$events = Object.create(null); + + if (typeof(events) !== 'undefined') { + this.addEventListener(events); + } + }; + + /** + * Stringifies request to websocket + * + * + * @param {String} command command name. + * @param {Object} data object to be sent over the wire. + * @return {String} json object. + */ + Responder.stringify = function stringify(command, data) { + return JSON.stringify([command, data]); + }; + + /** + * Parses request from WebSocket. + * + * @param {String} json json string to translate. + * @return {Object} ex: { event: 'test', data: {} }. + */ + Responder.parse = function parse(json) { + var data; + try { + data = (json.forEach) ? json : JSON.parse(json); + } catch (e) { + throw new Error("Could not parse json: '" + json + '"'); + } + + return {event: data[0], data: data[1]}; + }; + + Responder.prototype = { + parse: Responder.parse, + stringify: Responder.stringify, + + /** + * Events on this instance + * + * @type Object + */ + _$events: null, + + /** + * Recieves json string event and dispatches an event. + * + * @param {String|Object} json data object to respond to. + * @param {String} json.event event to emit. + * @param {Object} json.data data to emit with event. + * @param {Object} [params] option number of params to pass to emit. + * @return {Object} result of WebSocketCommon.parse. + */ + respond: function respond(json) { + var event = Responder.parse(json), + args = Array.prototype.slice.call(arguments).slice(1); + + args.unshift(event.data); + args.unshift(event.event); + + this.emit.apply(this, args); + + return event; + }, + + //TODO: Extract event emitter logic + + /** + * Adds an event listener to this object. + * + * + * @param {String} type event name. + * @param {Function} callback event callback. + */ + addEventListener: function addEventListener(type, callback) { + var event; + + if (typeof(callback) === 'undefined' && typeof(type) === 'object') { + for (event in type) { + if (type.hasOwnProperty(event)) { + this.addEventListener(event, type[event]); + } + } + + return this; + } + + if (!(type in this._$events)) { + this._$events[type] = []; + } + + this._$events[type].push(callback); + + return this; + }, + + /** + * Adds an event listener which will + * only fire once and then remove itself. + * + * + * @param {String} type event name. + * @param {Function} callback fired when event is emitted. + */ + once: function once(type, callback) { + var self = this; + function onceCb() { + self.removeEventListener(type, onceCb); + callback.apply(this, arguments); + } + + this.addEventListener(type, onceCb); + + return this; + }, + + /** + * Emits an event. + * + * Accepts any number of additional arguments to pass unto + * event listener. + * + * @param {String} eventName name of the event to emit. + * @param {Object} [arguments] additional arguments to pass. + */ + emit: function emit() { + var args = Array.prototype.slice.call(arguments), + event = args.shift(), + eventList, + self = this; + + if (event in this._$events) { + eventList = this._$events[event]; + + eventList.forEach(function(callback) { + callback.apply(self, args); + }); + } + + return this; + }, + + /** + * Removes all event listeners for a given event type + * + * + * @param {String} event event type to remove. + */ + removeAllEventListeners: function removeAllEventListeners(name) { + if (name in this._$events) { + //reuse array + this._$events[name].length = 0; + } + + return this; + }, + + /** + * Removes a single event listener from a given event type + * and callback function. + * + * + * @param {String} eventName event name. + * @param {Function} callback same instance of event handler. + */ + removeEventListener: function removeEventListener(name, callback) { + var i, length, events; + + if (!(name in this._$events)) { + return false; + } + + events = this._$events[name]; + + for (i = 0, length = events.length; i < length; i++) { + if (events[i] && events[i] === callback) { + events.splice(i, 1); + return true; + } + } + + return false; + } + + }; + + Responder.prototype.on = Responder.prototype.addEventListener; + module.exports = Responder; + +}.apply( + this, + (this.Caldav) ? + [Caldav('responder'), Caldav] : + [module, require('./caldav')] +)); +(function(module, ns) { + + var Responder = ns.require('responder'); + + if (typeof(window) === 'undefined') { + Parser.sax = require('sax'); + } else { + Parser.sax = sax; + } + + /** + * Creates a parser object. + * + * @param {Object} baseHandler base sax handler. + */ + function Parser(baseHandler) { + var handler; + + var events = [ + 'ontext', + 'onopentag', + 'onclosetag', + 'onerror', + 'onend' + ]; + + if (typeof(baseHandler) !== 'undefined') { + handler = baseHandler; + } else { + handler = ns.require('sax/base'); + } + + this.stack = []; + this.handles = {}; + this._handlerStack = []; + this.tagStack = []; + this.root = this.current = {}; + + this.setHandler(handler); + + this._parse = Parser.sax.parser(true, { + xmlns: true, + trim: true, + normalize: false, + lowercase: true + }); + + events.forEach(function(event) { + this._parse[event] = this[event].bind(this); + }, this); + + Responder.call(this); + } + + Parser.prototype = { + + __proto__: Responder.prototype, + + /** + * Sets current handler, optionally adding + * previous one to the handlerStack. + * + * @param {Object} handler new handler. + * @param {Boolean} storeOriginal store old handler? + */ + setHandler: function(handler, storeOriginal) { + if (storeOriginal) { + this._handlerStack.push(this.handler); + } + + this.handler = handler; + }, + + /** + * Sets handler to previous one in the stack. + */ + restoreHandler: function() { + if (this._handlerStack.length) { + this.handler = this._handlerStack.pop(); + } + }, + + /** + * Registers a top level handler + * + * @param {String} tag xmlns uri/local tag name for example + * DAV:/a. + * + * @param {Object} handler new handler to use when tag is + * triggered. + */ + registerHandler: function(tag, handler) { + this.handles[tag] = handler; + }, + + /** + * Writes data into the parser. + * + * @param {String} chunk partial/complete chunk of xml. + */ + write: function(chunk) { + return this._parse.write(chunk); + }, + + get closed() { + return this._parse.closed; + }, + + /** + * Determines if given tagSpec has a specific handler. + * + * @param {String} tagSpec usual tag spec. + */ + getHandler: function(tagSpec) { + var handler; + var handlers = this.handler.handles; + + if (!handlers) { + handlers = this.handles; + } + + if (tagSpec in handlers) { + handler = handlers[tagSpec]; + + if (handler !== this.handler) { + return handler; + } + } + + return false; + }, + + _fireHandler: function(event, data) { + if (typeof(this.handler[event]) === 'function') { + this.handler[event].call(this, data, this.handler); + } + }, + + onopentag: function(data) { + var handle; + var stackData = { + local: data.local, + name: data.name + }; + + //build tagSpec for others to use. + data.tagSpec = data.uri + '/' + data.local; + + //add to stackData + stackData.tagSpec = data.tagSpec; + + // shortcut to the current tag object + this.currentTag = stackData; + + //determine if we need to switch to another + //handler object. + handle = this.getHandler(data.tagSpec); + + if (handle) { + //switch to new handler object + this.setHandler(handle, true); + stackData.handler = handle; + } + + this.tagStack.push(stackData); + this._fireHandler('onopentag', data); + }, + + //XXX: optimize later + get currentTag() { + return this.tagStack[this.tagStack.length - 1]; + }, + + onclosetag: function(data) { + var stack, handler; + + stack = this.currentTag; + + if (stack.handler) { + //fire oncomplete handler if available + this._fireHandler('oncomplete'); + } + + //fire the onclosetag event + this._fireHandler('onclosetag', data); + + if (stack.handler) { + //restore previous handler + this.restoreHandler(); + } + + //actually remove the stack tag + this.tagStack.pop(); + }, + + ontext: function(data) { + this._fireHandler('ontext', data); + }, + + onerror: function(data) { + //TODO: XXX implement handling of parsing errors. + //unlikely but possible if server goes down + //or there is some authentication issue that + //we miss. + this._fireHandler('onerror', data); + }, + + onend: function() { + this._fireHandler('onend', this.root); + } + }; + + module.exports = Parser; + +}.apply( + this, + (this.Caldav) ? + [Caldav('sax'), Caldav] : + [module, require('./caldav')] +)); +(function(module, ns) { + + function Template(root, rootAttrs) { + if (typeof(rootAttrs) === 'undefined') { + rootAttrs = {}; + } + + this.rootTag = root; + this.rootAttrs = rootAttrs; + this.activeNamespaces = {}; + } + + Template.prototype = { + + defaultNamespace: 'dav', + doctype: '<?xml version="1.0" encoding="UTF-8"?>', + + _nsId: 0, + + xmlns: { + dav: 'DAV:', + calserver: 'http://calendarserver.org/ns/', + ical: 'http://apple.com/ns/ical/', + caldav: 'urn:ietf:params:xml:ns:caldav' + }, + + render: function(content) { + var output = this.doctype; + output += this.tag(this.rootTag, this.rootAttrs, content); + + return output; + }, + + /** + * Registers an xml tag/namespace. + * + * @param {String} prefix xmlns. + * @param {String} tag tag name. + * @return {String} xml tag name. + */ + _registerTag: function(prefix, tag) { + if (prefix in this.xmlns) { + prefix = this.xmlns[prefix]; + } + + if (prefix in this.activeNamespaces) { + prefix = this.activeNamespaces[prefix]; + } else { + var alias = 'N' + this._nsId++; + this.activeNamespaces[prefix] = alias; + this.rootAttrs['xmlns:' + alias] = prefix; + prefix = alias; + } + + return prefix + ':' + tag; + }, + + /** + * Returns a xml string based on + * input. Registers given xmlns on main + * template. Always use this with render. + * + * @param {String|Array} tagDesc as a string defaults to + * .defaultNamespace an array + * takes a xmlns or an alias + * defined in .xmlns. + * + * @param {Object} [attrs] optional attributes. + * @param {String} content content of tag. + * @return {String} xml tag output. + */ + tag: function(tagDesc, attrs, content) { + + if (typeof(attrs) === 'string') { + content = attrs; + attrs = {}; + } + + if (typeof(content) === 'undefined') { + content = false; + } + + if (attrs && typeof(attrs.render) === 'function') { + content = attrs.render(this); + attrs = {}; + } + + if (typeof(tagDesc) === 'string') { + tagDesc = [this.defaultNamespace, tagDesc]; + } + + var fullTag = this._registerTag(tagDesc[0], tagDesc[1]); + var output = ''; + var key; + + output += '<' + fullTag + ''; + + for (key in attrs) { + output += ' ' + key + '="' + attrs[key] + '"'; + } + + if (content) { + output += '>' + content + '</' + fullTag + '>'; + } else { + output += ' />'; + } + + return output; + } + + }; + + module.exports = Template; + +}.apply( + this, + (this.Caldav) ? + [Caldav('template'), Caldav] : + [module, require('./caldav')] +)); +/** +@namespace +*/ +(function(module, ns) { + var Native; + + if (typeof(window) === 'undefined') { + Native = require('xmlhttprequest').XMLHttpRequest; + } else { + Native = window.XMLHttpRequest; + } + + /** + * Creates a XHR wrapper. + * Depending on the platform this is loaded + * from the correct wrapper type will be used. + * + * Options are derived from properties on the prototype. + * See each property for its default value. + * + * @class + * @name Caldav.Xhr + * @param {Object} options options for xhr. + * @param {String} [options.method="GET"] any HTTP verb like 'GET' or 'POST'. + * @param {Boolean} [options.async] false will indicate + * a synchronous request. + * @param {Object} [options.headers] full of http headers. + * @param {Object} [options.data] post data. + */ + function Xhr(options) { + var key; + if (typeof(options) === 'undefined') { + options = {}; + } + + for (key in options) { + if (options.hasOwnProperty(key)) { + this[key] = options[key]; + } + } + } + + Xhr.prototype = { + /** @scope Caldav.Xhr.prototype */ + + xhrClass: Native, + method: 'GET', + async: true, + waiting: false, + user: null, + password: null, + url: null, + + headers: {}, + data: null, + + _seralize: function _seralize() { + return this.data; + }, + + /** + * Aborts request if its in progress. + */ + abort: function abort() { + if (this.xhr) { + this.xhr.abort(); + } + }, + + /** + * Sends request to server. + * + * @param {Function} callback success/failure handler. + */ + send: function send(callback) { + var header, xhr; + + if (typeof(callback) === 'undefined') { + callback = this.callback; + } + + xhr = this.xhr = new this.xhrClass(); + + if (Xhr.authHack) { + xhr.open(this.method, this.url, this.async); + } else { + xhr.open(this.method, this.url, this.async, this.user, this.password); + } + + for (header in this.headers) { + if (this.headers.hasOwnProperty(header)) { + xhr.setRequestHeader(header, this.headers[header]); + } + } + + + xhr.onreadystatechange = function onReadyStateChange() { + var data; + if (xhr.readyState === 4) { + data = xhr.responseText; + this.waiting = false; + callback(null, xhr); + } + }.bind(this); + + this.waiting = true; + xhr.send(this._seralize()); + } + }; + + module.exports = Xhr; + +}.apply( + this, + (this.Caldav) ? + [Caldav('xhr'), Caldav] : + [module, require('./caldav')] +)); +(function(module, ns) { + + function CalendarData() { + this._hasItems = false; + this.struct = {}; + } + + CalendarData.prototype = { + + rootName: 'calendar-data', + compName: 'comp', + propName: 'prop', + + /** + * Appends a list of fields + * to a given iCalendar field set. + * + * @param {String} type iCal fieldset (VTODO, VEVENT,...). + */ + select: function(type, list) { + var struct = this.struct; + this._hasItems = true; + + if (!(type in struct)) { + struct[type] = []; + } + + if (list instanceof Array) { + struct[type] = struct[type].concat(list); + } else { + struct[type] = list; + } + + return this; + }, + + /** + * Accepts an object full of arrays + * recuse when encountering another object. + */ + _renderFieldset: function(template, element) { + var tag; + var value; + var i; + var output = ''; + var elementOutput = ''; + + for (tag in element) { + value = element[tag]; + for (i = 0; i < value.length; i++) { + if (typeof(value[i]) === 'object') { + elementOutput += this._renderFieldset( + template, + value[i] + ); + } else { + elementOutput += template.tag( + ['caldav', this.propName], + { name: value[i] } + ); + } + } + output += template.tag( + ['caldav', this.compName], + { name: tag }, + elementOutput || null + ); + elementOutput = ''; + } + + return output; + }, + + /** + * Renders CalendarData with a template. + * + * @param {WebCals.Template} template calendar to render. + * @return {String} <calendardata /> xml output. + */ + render: function(template) { + if (!this._hasItems) { + return template.tag(['caldav', this.rootName]); + } + + var struct = this.struct; + var output = template.tag( + ['caldav', this.rootName], + template.tag( + ['caldav', this.compName], + { name: 'VCALENDAR' }, + this._renderFieldset(template, struct) + ) + ); + + return output; + } + }; + + + module.exports = CalendarData; + +}.apply( + this, + (this.Caldav) ? + [Caldav('templates/calendar_data'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + var CalendarData = ns.require('templates/calendar_data'); + + function CalendarFilter() { + CalendarData.call(this); + } + + CalendarFilter.prototype = { + + __proto__: CalendarData.prototype, + + add: CalendarData.prototype.select, + + compName: 'comp-filter', + rootName: 'filter' + }; + + module.exports = CalendarFilter; + +}.apply( + this, + (this.Caldav) ? + [Caldav('templates/calendar_filter'), Caldav] : + [module, require('../caldav')] +)); + +(function(module, ns) { + + var Base = { + + name: 'base', + + tagField: 'local', + + /** + * Creates a new object with base as its prototype. + * Adds ._super to object as convenience prop to access + * the parents functions. + * + * @param {Object} obj function overrides. + * @return {Object} new object. + */ + create: function(obj) { + var key; + var child = Object.create(this); + + child._super = this; + + for (key in obj) { + if (obj.hasOwnProperty(key)) { + child[key] = obj[key]; + } + } + + return child; + }, + + onopentag: function(data, handler) { + var current = this.current; + var name = data[handler.tagField]; + + this.stack.push(this.current); + + if (name in current) { + var next = {}; + + if (!(current[name] instanceof Array)) { + current[name] = [current[name]]; + } + + current[name].push(next); + + this.current = next; + } else { + this.current = current[name] = {}; + } + }, + + ontext: function(data) { + this.current.value = data; + }, + + onclosetag: function() { + this.current = this.stack.pop(); + }, + + onend: function() { + this.emit('complete', this.root); + } + }; + + module.exports = Base; + +}.apply( + this, + (this.Caldav) ? + [Caldav('sax/base'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + var HTTP_STATUS = /([0-9]{3,3})/; + + var Base = ns.require('sax/base'); + var ParseICal = ns.require('ical'); + + var TextHandler = Base.create({ + name: 'text', + + //don't add text only elements + //to the stack as objects + onopentag: null, + onclosetag: null, + + //add the value to the parent + //value where key is local tag name + //and value is the text. + ontext: function(data) { + var handler = this.handler; + this.current[this.currentTag[handler.tagField]] = data; + } + }); + + var CalendarDataHandler = Base.create({ + name: 'calendar data', + + //don't add text only elements + //to the stack as objects + onopentag: null, + onclosetag: null, + + //add the value to the parent + //value where key is local tag name + //and value is the text. + ontext: function(data) { + var handler = this.handler; + this.current[this.currentTag[handler.tagField]] = ParseICal(data); + } + }); + + + var HrefHandler = Base.create({ + name: 'href', + + //don't add text only elements + //to the stack as objects + onopentag: null, + onclosetag: null, + + onopentag: function() { + if (this.currentTag.handler === this.handler) { + this.stack.push(this.current); + this.current = null; + } + }, + + onclosetag: function() { + var current = this.currentTag; + var data; + + if (current.handler === this.handler) { + data = this.current; + + this.current = this.stack.pop(); + this.current[current.local] = data; + } + }, + + ontext: function(data) { + if (this.currentTag.local === 'href') { + this.current = data; + } + } + + }); + + var HttpStatusHandler = TextHandler.create({ + name: 'status', + + ontext: function(data, handler) { + var match = data.match(HTTP_STATUS); + + if (match) { + var handler = this.handler; + this.current[this.currentTag[handler.tagField]] = match[1]; + } else { + this._super.ontext.call(this, data, handler); + } + } + }); + + var ArrayHandler = Base.create({ + name: 'array', + + handles: { + 'DAV:/href': TextHandler + }, + + onopentag: function(data, handler) { + var last; + var tag = data[handler.tagField]; + var last = this.tagStack[this.tagStack.length - 1]; + + if (last.handler === handler) { + this.stack.push(this.current); + this.current = this.current[tag] = []; + } else { + this.current.push(tag); + } + }, + + ontext: null, + onclosetag: null, + + oncomplete: function() { + this.current = this.stack.pop(); + } + + }); + + var PropStatHandler = Base.create({ + name: 'propstat', + + handles: { + 'DAV:/href': TextHandler, + 'DAV:/status': HttpStatusHandler, + 'DAV:/resourcetype': ArrayHandler, + 'DAV:/principal-URL': HrefHandler, + 'urn:ietf:params:xml:ns:caldav/calendar-data': CalendarDataHandler, + 'DAV:/value': TextHandler, + 'urn:ietf:params:xml:ns:caldav/calendar-home-set': HrefHandler, + 'urn:ietf:params:xml:ns:caldav/calendar-user-address-set': HrefHandler + }, + + onopentag: function(data, handler) { + //orphan + if (data.tagSpec === 'DAV:/propstat') { + //blank slate propstat + if (!('propstat' in this.current)) { + this.current['propstat'] = {}; + } + + this.stack.push(this.current); + + //contents will be copied over later. + return this.current = {}; + } + + handler._super.onopentag.call(this, data, handler); + }, + + oncomplete: function() { + var propstat = this.stack[this.stack.length - 1]; + propstat = propstat.propstat; + var key; + var status = this.current.status; + var props = this.current.prop; + + delete this.current.status; + delete this.current.prop; + + for (key in props) { + if (props.hasOwnProperty(key)) { + propstat[key] = { + status: status, + value: props[key] + }; + } + } + } + }); + + var Response = Base.create({ + name: 'dav_response', + handles: { + 'DAV:/href': TextHandler, + 'DAV:/propstat': PropStatHandler + }, + + onopentag: function(data, handler) { + if (data.tagSpec === 'DAV:/response') { + this.stack.push(this.current); + return this.current = {}; + } + + handler._super.onopentag.call(this, data, handler._super); + }, + + oncomplete: function() { + var parent; + + if (this.current.href) { + parent = this.stack[this.stack.length - 1]; + parent[this.current.href] = this.current.propstat; + } + } + + }); + + module.exports = Response; + +}.apply( + this, + (this.Caldav) ? + [Caldav('sax/dav_response'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + var SAX = ns.require('sax'); + var XHR = ns.require('xhr'); + + + /** + * Creates an (Web/Cal)Dav request. + * + * @param {String} url location of resource. + * @param {Object} options additional options for request. + */ + function Abstract(url, options) { + if (typeof(options) === 'undefined') { + options = {}; + } + + var key; + var xhrOptions = {}; + + if (typeof(url) === 'undefined' || !url) { + throw new Error('request requires a url'); + } + + xhrOptions.url = url; + + if ('password' in options) { + xhrOptions.password = options.password; + delete options.password; + } + + if ('user' in options) { + xhrOptions.user = options.user; + delete options.user; + } + + this.sax = new SAX(); + + for (key in options) { + if (options.hasOwnProperty(key)) { + this[key] = options[key]; + } + } + + this.xhr = new XHR(xhrOptions); + } + + Abstract.prototype = { + + _createPayload: function() { + return ''; + }, + + _processResult: function(req, callback) { + callback.call(this, null, this.sax.root, req); + }, + + /** + * Sends request to server. + * + * @param {Function} callback node style callback. + * Receives three arguments + * error, parsedData, xhr. + */ + send: function(callback) { + var self = this; + var req = this.xhr; + req.data = this._createPayload(); + + // in the future we may stream data somehow + req.send(function xhrResult() { + var xhr = req.xhr; + if (xhr.status > 199 && xhr.status < 300) { + // success + self.sax.write(xhr.responseText).close(); + self._processResult(req, callback); + } else { + // fail + callback(new Error('http error code: ' + xhr.status)); + } + }); + } + }; + + module.exports = Abstract; + +}.apply( + this, + (this.Caldav) ? + [Caldav('request/abstract'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + var Abstract = ns.require('request/abstract'), + Template = ns.require('template'), + DavResponse = ns.require('sax/dav_response'); + + /** + * Creates a propfind request. + * + * @param {String} url location to make request. + * @param {Object} options options for propfind. + */ + function Propfind(url, options) { + Abstract.apply(this, arguments); + + this.template = new Template('propfind'); + this._props = []; + this.sax.registerHandler( + 'DAV:/response', + DavResponse + ); + + this.xhr.headers['Depth'] = this.depth; + this.xhr.method = 'PROPFIND'; + } + + Propfind.prototype = { + __proto__: Abstract.prototype, + + depth: 0, + + /** + * Adds property to request. + * + * @param {String|Array} tagDesc tag description. + * @param {Object} [attr] optional tag attrs. + * @param {Obj} [content] optional content. + */ + prop: function(tagDesc, attr, content) { + this._props.push(this.template.tag(tagDesc, attr, content)); + }, + + _createPayload: function() { + var content = this.template.tag('prop', this._props.join('')); + return this.template.render(content); + }, + + _processResult: function(req, callback) { + if ('multistatus' in this.sax.root) { + callback(null, this.sax.root.multistatus, req); + } else { + //XXX: Improve error handling + callback( + new Error('unexpected xml result'), + this.sax.root, req + ); + } + } + + }; + + module.exports = Propfind; + +}.apply( + this, + (this.Caldav) ? + [Caldav('request/propfind'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + var Propfind = ns.require('request/propfind'); + var CalendarData = ns.require('templates/calendar_data'); + var CalendarFilter = ns.require('templates/calendar_filter'); + + /** + * Creates a calendar query request. + * + * Defaults to Depth of 1. + * + * @param {String} url location to make request. + * @param {Object} options options for calendar query. + */ + function CalendarQuery(url, options) { + Propfind.apply(this, arguments); + + this.xhr.headers['Depth'] = this.depth || 1; + this.xhr.method = 'REPORT'; + this.fields = new CalendarData(); + this.filters = new CalendarFilter(); + + this.template.rootTag = ['caldav', 'calendar-query']; + } + + CalendarQuery.prototype = { + __proto__: Propfind.prototype, + + _createPayload: function() { + var content; + var props; + + props = this._props.join(''); + + if (this.fields) { + props += this.fields.render(this.template); + } + + content = this.template.tag('prop', props); + + if (this.filters) { + content += this.filters.render(this.template); + } + + return this.template.render(content); + } + + }; + + module.exports = CalendarQuery; + +}.apply( + this, + (this.Caldav) ? + [Caldav('request/calendar_query'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + module.exports = { + Abstract: ns.require('request/abstract'), + CalendarQuery: ns.require('request/calendar_query'), + Propfind: ns.require('request/propfind') + }; + +}.apply( + this, + (this.Caldav) ? + [Caldav('request'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + module.exports = { + Abstract: ns.require('sax/abstract'), + CalendarQuery: ns.require('sax/dav_response') + }; + +}.apply( + this, + (this.Caldav) ? + [Caldav('sax'), Caldav] : + [module, require('../caldav')] +)); + +(function(module, ns) { + + module.exports = { + CalendarData: ns.require('templates/calendar_data'), + CalendarFilter: ns.require('templates/calendar_filter') + }; + +}.apply( + this, + (this.Caldav) ? + [Caldav('templates'), Caldav] : + [module, require('../caldav')] +)); +(function(module, ns) { + + var exports = module.exports; + + exports.Ical = ns.require('ical'); + exports.Responder = ns.require('responder'); + exports.Sax = ns.require('sax'); + exports.Template = ns.require('template'); + exports.Xhr = ns.require('xhr'); + exports.Request = ns.require('request'); + exports.Templates = ns.require('templates'); + +}.apply( + this, + (this.Caldav) ? + [Caldav, Caldav] : + [module, require('./caldav')] +)); |