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|
// Copyright (c) 2008-2011 Kris Maglione <maglione.k at Gmail>
//
// This work is licensed for reuse under an MIT license. Details are
// given in the LICENSE.txt file included with this file.
"use strict";
function reportError(e) {
dump("dactyl: protocols: " + e + "\n" + (e.stack || Error().stack));
Cu.reportError(e);
}
var NAME = "protocols";
var global = this;
var Cc = Components.classes;
var Ci = Components.interfaces;
var Cu = Components.utils;
var ioService = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
var systemPrincipal = Cc["@mozilla.org/systemprincipal;1"].getService(Ci.nsIPrincipal);
var DNE = "resource://dactyl/content/does/not/exist";
var _DNE;
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
function makeChannel(url, orig) {
try {
if (url == null)
return fakeChannel(orig);
if (typeof url === "function")
return let ([type, data] = url(orig)) StringChannel(data, type, orig);
if (isArray(url))
return let ([type, data] = url) StringChannel(data, type, orig);
let uri = ioService.newURI(url, null, null);
return (new XMLChannel(uri)).channel;
}
catch (e) {
util.reportError(e);
throw e;
}
}
function fakeChannel(orig) {
let channel = ioService.newChannel(DNE, null, null);
channel.originalURI = orig;
return channel;
}
function redirect(to, orig, time) {
let html = <html><head><meta http-equiv="Refresh" content={(time || 0) + ";" + to}/></head></html>.toXMLString();
return StringChannel(html, "text/html", ioService.newURI(to, null, null));
}
function Factory(clas) ({
__proto__: clas.prototype,
createInstance: function (outer, iid) {
try {
if (outer != null)
throw Components.results.NS_ERROR_NO_AGGREGATION;
if (!clas.instance)
clas.instance = new clas();
return clas.instance.QueryInterface(iid);
}
catch (e) {
reportError(e);
throw e;
}
}
});
/* Adds support for data: URIs with chrome privileges
* and fragment identifiers.
*
* "chrome-data:" <content-type> [; <flag>]* "," [<data>]
*
* By Kris Maglione, ideas from Ed Anuff's nsChromeExtensionHandler.
*/
function ChromeData() {}
ChromeData.prototype = {
contractID: "@mozilla.org/network/protocol;1?name=chrome-data",
classID: Components.ID("{c1b67a07-18f7-4e13-b361-2edcc35a5a0d}"),
classDescription: "Data URIs with chrome privileges",
QueryInterface: XPCOMUtils.generateQI([Ci.nsIProtocolHandler]),
_xpcom_factory: Factory(ChromeData),
scheme: "chrome-data",
defaultPort: -1,
allowPort: function (port, scheme) false,
protocolFlags: Ci.nsIProtocolHandler.URI_NORELATIVE
| Ci.nsIProtocolHandler.URI_NOAUTH
| Ci.nsIProtocolHandler.URI_IS_UI_RESOURCE,
newURI: function (spec, charset, baseURI) {
var uri = Components.classes["@mozilla.org/network/standard-url;1"]
.createInstance(Components.interfaces.nsIStandardURL)
.QueryInterface(Components.interfaces.nsIURI);
uri.init(uri.URLTYPE_STANDARD, this.defaultPort, spec, charset, null);
return uri;
},
newChannel: function (uri) {
try {
if (uri.scheme == this.scheme) {
let channel = ioService.newChannel(uri.spec.replace(/^.*?:\/*(.*)(?:#.*)?/, "data:$1"),
null, null);
channel.contentCharset = "UTF-8";
channel.owner = systemPrincipal;
channel.originalURI = uri;
return channel;
}
}
catch (e) {}
return fakeChannel(uri);
}
};
function Dactyl() {
// Kill stupid validator warning.
this["wrapped" + "JSObject"] = this;
this.HELP_TAGS = {};
this.FILE_MAP = {};
this.OVERLAY_MAP = {};
this.pages = {};
this.providers = {};
Cu.import("resource://dactyl/bootstrap.jsm");
if (!JSMLoader.initialized)
JSMLoader.init();
JSMLoader.load("base.jsm", global);
require(global, "config");
require(global, "services");
require(global, "util");
_DNE = ioService.newChannel(DNE, null, null).name;
// Doesn't belong here:
AboutHandler.prototype.register();
}
Dactyl.prototype = {
contractID: "@mozilla.org/network/protocol;1?name=dactyl",
classID: Components.ID("{9c8f2530-51c8-4d41-b356-319e0b155c44}"),
classDescription: "Dactyl utility protocol",
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, Ci.nsIProtocolHandler]),
_xpcom_factory: Factory(Dactyl),
init: function (obj) {
for each (let prop in ["HELP_TAGS", "FILE_MAP", "OVERLAY_MAP"]) {
this[prop] = this[prop].constructor();
for (let [k, v] in Iterator(obj[prop] || {}))
this[prop][k] = v;
}
this.initialized = true;
},
scheme: "dactyl",
defaultPort: -1,
allowPort: function (port, scheme) false,
protocolFlags: 0
| Ci.nsIProtocolHandler.URI_IS_UI_RESOURCE
| Ci.nsIProtocolHandler.URI_IS_LOCAL_RESOURCE,
newURI: function newURI(spec, charset, baseURI) {
var uri = Cc["@mozilla.org/network/standard-url;1"]
.createInstance(Ci.nsIStandardURL)
.QueryInterface(Ci.nsIURI);
if (baseURI && baseURI.host === "data")
baseURI = null;
uri.init(uri.URLTYPE_STANDARD, this.defaultPort, spec, charset, baseURI);
return uri;
},
newChannel: function newChannel(uri) {
try {
if (/^help/.test(uri.host) && !("all" in this.FILE_MAP))
return redirect(uri.spec, uri, 1);
if (uri.host in this.providers)
return makeChannel(this.providers[uri.host](uri), uri);
let path = decodeURIComponent(uri.path.replace(/^\/|#.*/g, ""));
switch(uri.host) {
case "content":
return makeChannel(this.pages[path] || "resource://dactyl-content/" + path, uri);
case "data":
try {
var channel = ioService.newChannel(uri.path.replace(/^\/(.*)(?:#.*)?/, "data:$1"),
null, null);
}
catch (e) {
var error = e;
break;
}
channel.contentCharset = "UTF-8";
channel.owner = systemPrincipal;
channel.originalURI = uri;
return channel;
case "help":
return makeChannel(this.FILE_MAP[path], uri);
case "help-overlay":
return makeChannel(this.OVERLAY_MAP[path], uri);
case "help-tag":
let tag = decodeURIComponent(uri.path.substr(1));
if (tag in this.FILE_MAP)
return redirect("dactyl://help/" + tag, uri);
if (tag in this.HELP_TAGS)
return redirect("dactyl://help/" + this.HELP_TAGS[tag] + "#" + tag.replace(/#/g, encodeURIComponent), uri);
break;
case "locale":
return LocaleChannel("dactyl-locale", path, uri);
case "locale-local":
return LocaleChannel("dactyl-local-locale", path, uri);
}
}
catch (e) {
util.reportError(e);
}
if (error)
throw error;
return fakeChannel(uri);
},
// FIXME: Belongs elsewhere
_xpcom_categories: [{
category: "profile-after-change",
entry: "m-dactyl"
}],
observe: function observe(subject, topic, data) {
if (topic === "profile-after-change") {
Cu.import("resource://dactyl/bootstrap.jsm");
JSMLoader.init();
require(global, "overlay");
}
}
};
function LocaleChannel(pkg, path, orig) {
for each (let locale in [config.locale, "en-US"])
for each (let sep in "-/") {
var channel = makeChannel(["resource:/", pkg + sep + config.locale, path].join("/"), orig);
if (channel.name !== _DNE)
return channel;
}
return channel;
}
function StringChannel(data, contentType, uri) {
let channel = services.StreamChannel(uri);
channel.contentStream = services.CharsetConv("UTF-8").convertToInputStream(data);
if (contentType)
channel.contentType = contentType;
channel.contentCharset = "UTF-8";
channel.owner = systemPrincipal;
if (uri)
channel.originalURI = uri;
return channel;
}
function XMLChannel(uri, contentType) {
try {
var channel = services.io.newChannelFromURI(uri);
var channelStream = channel.open();
}
catch (e) {
this.channel = fakeChannel(uri);
return;
}
this.uri = uri;
this.sourceChannel = services.io.newChannelFromURI(uri);
this.pipe = services.Pipe(true, true, 0, 0, null);
this.writes = [];
this.channel = services.StreamChannel(uri);
this.channel.contentStream = this.pipe.inputStream;
this.channel.contentType = contentType || channel.contentType;
this.channel.contentCharset = "UTF-8";
this.channel.owner = systemPrincipal;
let stream = services.InputStream(channelStream);
let [, pre, doctype, url, open, post] = util.regexp(<![CDATA[
^ ([^]*?)
(?:
(<!DOCTYPE \s+ \S+ \s+) SYSTEM \s+ "([^"]*)"
(\s+ \[)?
([^]*)
)?
$
]]>, "x").exec(stream.read(4096));
this.writes.push(pre);
if (doctype) {
this.writes.push(doctype + "[\n");
try {
this.writes.push(services.io.newChannel(url, null, null).open());
}
catch (e) {}
if (!open)
this.writes.push("\n]");
this.writes.push(post);
}
this.writes.push(channelStream);
this.writeNext();
}
XMLChannel.prototype = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIRequestObserver]),
writeNext: function () {
try {
if (!this.writes.length)
this.pipe.outputStream.close();
else {
let stream = this.writes.shift();
if (isString(stream))
stream = services.StringStream(stream);
services.StreamCopier(stream, this.pipe.outputStream, null,
false, true, 4096, true, false)
.asyncCopy(this, null);
}
}
catch (e) {
util.reportError(e);
}
},
onStartRequest: function (request, context) {},
onStopRequest: function (request, context, statusCode) {
this.writeNext();
}
};
function AboutHandler() {}
AboutHandler.prototype = {
register: function () {
try {
JSMLoader.registerFactory(Factory(AboutHandler));
}
catch (e) {
util.reportError(e);
}
},
get classDescription() "About " + config.appName + " Page",
classID: Components.ID("81495d80-89ee-4c36-a88d-ea7c4e5ac63f"),
get contractID() "@mozilla.org/network/protocol/about;1?what=" + config.name,
QueryInterface: XPCOMUtils.generateQI([Ci.nsIAboutModule]),
newChannel: function (uri) {
let channel = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService)
.newChannel("dactyl://content/about.xul", null, null);
channel.originalURI = uri;
return channel;
},
getURIFlags: function (uri) Ci.nsIAboutModule.ALLOW_SCRIPT,
};
// A hack to get information about interfaces.
// Doesn't belong here.
function Shim() {}
Shim.prototype = {
contractID: "@dactyl.googlecode.com/base/xpc-interface-shim",
classID: Components.ID("{f4506a17-5b4d-4cd9-92d4-2eb4630dc388}"),
classDescription: "XPCOM empty interface shim",
QueryInterface: function (iid) {
if (iid.equals(Ci.nsISecurityCheckedComponent))
throw Components.results.NS_ERROR_NO_INTERFACE;
return this;
},
getHelperForLanguage: function () null,
getInterfaces: function (count) { count.value = 0; }
};
if (XPCOMUtils.generateNSGetFactory)
var NSGetFactory = XPCOMUtils.generateNSGetFactory([ChromeData, Dactyl, Shim]);
else
var NSGetModule = XPCOMUtils.generateNSGetModule([ChromeData, Dactyl, Shim]);
var EXPORTED_SYMBOLS = ["NSGetFactory", "global"];
// vim: set fdm=marker sw=4 ts=4 et:
|
