зеркало из https://github.com/mozilla/gecko-dev.git
262 строки
10 KiB
JavaScript
262 строки
10 KiB
JavaScript
/* -*- Mode: javascript; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Calendar code.
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*
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* The Initial Developer of the Original Code is
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* Michiel van Leeuwen <mvl@exedo.nl>.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// Import
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function calIcsImporter() {
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this.wrappedJSObject = this;
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}
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calIcsImporter.prototype.QueryInterface =
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function QueryInterface(aIID) {
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if (!aIID.equals(Components.interfaces.nsISupports) &&
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!aIID.equals(Components.interfaces.calIImporter)) {
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throw Components.results.NS_ERROR_NO_INTERFACE;
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}
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return this;
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};
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function getIcsFileTypes(aCount) {
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aCount.value = 1;
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var sbs = Components.classes["@mozilla.org/intl/stringbundle;1"]
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.getService(Components.interfaces.nsIStringBundleService);
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var props = sbs.createBundle("chrome://calendar/locale/calendar.properties");
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var wildmat = '*.ics';
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var label = props.formatStringFromName('filterIcs', [wildmat], 1);
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return([{defaultExtension:'ics',
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extensionFilter: wildmat,
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description: label}]);
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}
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calIcsImporter.prototype.getFileTypes = getIcsFileTypes;
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calIcsImporter.prototype.importFromStream =
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function ics_importFromStream(aStream, aCount) {
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var items = new Array();
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// Read in the string. Note that it isn't a real string at this point, because
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// likely, the file is utf8. The multibyte chars show up as multiple 'chars'
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// in this string. So call it an array of octets for now.
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var octetArray = [];
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var binaryInputStream = Components.classes["@mozilla.org/binaryinputstream;1"]
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.createInstance(Components.interfaces.nsIBinaryInputStream);
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binaryInputStream.setInputStream(aStream);
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octetArray = binaryInputStream.readByteArray(binaryInputStream.available());
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// Some other apps (most notably, sunbird 0.2) happily splits an utf8 character
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// between the octets, and adds a newline and space between them, for ics
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// folding. Unfold manually before parsing the file as utf8.
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// This is utf8 safe, because octets with the first bit 0 are always one-octet
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// characters. So the space or the newline never can be part of a multi-byte
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// char.
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for (var i=octetArray.length-2; i>=0; i--) {
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if (octetArray[i] == "\n" && octetArray[i+1] == " ") {
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octetArray = octetArray.splice(i, 2);
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}
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}
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// Interpret the byte-array as an utf8 string, and convert into a
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// javascript string.
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var unicodeConverter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"]
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.createInstance(Components.interfaces.nsIScriptableUnicodeConverter);
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// ics files are always utf8
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unicodeConverter.charset = "UTF-8";
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var str = unicodeConverter.convertFromByteArray(octetArray, octetArray.length);
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icssrv = Components.classes["@mozilla.org/calendar/ics-service;1"]
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.getService(Components.interfaces.calIICSService);
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var rootComp = icssrv.parseICS(str);
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var calComp;
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// libical returns the vcalendar component if there is just
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// one vcalendar. If there are multiple vcalendars, it returns
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// an xroot component, with those vcalendar childs. We need to
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// handle both.
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if (rootComp.componentType == 'VCALENDAR') {
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calComp = rootComp;
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} else {
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calComp = rootComp.getFirstSubcomponent('VCALENDAR');
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}
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while (calComp) {
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// XXX bug 354073:
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// When Sunbird 0.2 (and earlier) creates EXDATEs, they are set to
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// 00:00:00 floating rather than to the item's DTSTART. This fixes that.
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//
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// This should really be in the migration code found in bug 349586,
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// but in the interest of getting 0.3 released, we're putting it here.
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// When bug 349586 lands, please make sure moving this to the
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// migrator is part of that checkin.
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var prodId = calComp.getFirstProperty("PRODID");
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var isFromOldSunbird;
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if (prodId) {
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isFromOldSunbird = (prodId.value.indexOf("NONSGML Mozilla Calendar V1.0") > -1);
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}
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// Helper function to deal with the busted exdates from Sunbird 0.2
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function fixOldSunbirdExceptions(aItem) {
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const kCalIRecurrenceDate = Components.interfaces.calIRecurrenceDate;
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var ritems = aItem.recurrenceInfo.getRecurrenceItems({});
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for (var i in ritems) {
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var ritem = ritems[i];
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// EXDATEs are represented as calIRecurrenceDates, which are
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// negative and finite.
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if (ritem instanceof kCalIRecurrenceDate &&
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ritem.isNegative && ritem.isFinite)
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{
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// Only mess with the exception if its time is wrong.
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var oldDate = aItem.startDate || aItem.entryDate;
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if (ritem.date.compare(oldDate) != 0) {
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var newRitem = ritem.clone();
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// All we want from aItem is the time and timezone.
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newRitem.date.timezone = oldDate.timezone;
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newRitem.date.hour = oldDate.hour;
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newRitem.date.minute = oldDate.minute;
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newRitem.date.second = oldDate.second;
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newRitem.date.normalize();
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aItem.recurrenceInfo.appendRecurrenceItem(newRitem);
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aItem.recurrenceInfo.deleteRecurrenceItem(ritem);
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}
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}
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}
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return aItem;
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}
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var subComp = calComp.getFirstSubcomponent("ANY");
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while (subComp) {
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switch (subComp.componentType) {
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case "VEVENT":
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var event = Components.classes["@mozilla.org/calendar/event;1"]
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.createInstance(Components.interfaces.calIEvent);
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event.icalComponent = subComp;
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// Only try to fix ICS from Sunbird 0.2 (and earlier) if it
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// has an EXDATE.
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hasExdate = subComp.getFirstProperty("EXDATE");
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if (isFromOldSunbird && hasExdate) {
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event = fixOldSunbirdExceptions(event);
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}
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items.push(event);
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break;
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case "VTODO":
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var todo = Components.classes["@mozilla.org/calendar/todo;1"]
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.createInstance(Components.interfaces.calITodo);
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todo.icalComponent = subComp;
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// Only try to fix ICS from Sunbird 0.2 (and earlier) if it
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// has an EXDATE.
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hasExdate = subComp.getFirstProperty("EXDATE");
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if (isFromOldSunbird && hasExdate) {
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todo = fixOldSunbirdExceptions(todo);
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}
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items.push(todo);
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break;
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default:
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// Nothing
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}
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subComp = calComp.getNextSubcomponent("ANY");
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}
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calComp = rootComp.getNextSubcomponent('VCALENDAR');
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}
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aCount.value = items.length;
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return items;
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};
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// Export
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function calIcsExporter() {
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this.wrappedJSObject = this;
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}
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calIcsExporter.prototype.QueryInterface =
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function QueryInterface(aIID) {
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if (!aIID.equals(Components.interfaces.nsISupports) &&
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!aIID.equals(Components.interfaces.calIExporter)) {
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throw Components.results.NS_ERROR_NO_INTERFACE;
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}
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return this;
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};
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calIcsExporter.prototype.getFileTypes = getIcsFileTypes;
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// not prototype.export. export is reserved.
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calIcsExporter.prototype.exportToStream =
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function ics_exportToStream(aStream, aCount, aItems) {
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icssrv = Components.classes["@mozilla.org/calendar/ics-service;1"]
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.getService(Components.interfaces.calIICSService);
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var calComp = icssrv.createIcalComponent("VCALENDAR");
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calComp.version = "2.0";
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calComp.prodid = "-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN";
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for each (item in aItems) {
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calComp.addSubcomponent(item.icalComponent);
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var rec = item.recurrenceInfo;
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if (rec != null) {
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var exceptions = rec.getExceptionIds({});
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for each ( var exid in exceptions ) {
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var ex = rec.getExceptionFor(exid, false);
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if (ex != null) {
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calComp.addSubcomponent(ex.icalComponent);
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}
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}
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}
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}
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var str = calComp.serializeToICS();
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// Convert the javascript string to an array of bytes, using the
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// utf8 encoder
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var convStream = Components.classes["@mozilla.org/intl/converter-output-stream;1"]
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.getService(Components.interfaces.nsIConverterOutputStream);
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convStream.init(aStream, 'UTF-8', 0, 0x0000);
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convStream.writeString(str);
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convStream.close();
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return;
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};
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