mirror of
https://github.com/gryf/pentadactyl-pm.git
synced 2025-12-20 01:57:58 +01:00
337 lines
11 KiB
JavaScript
337 lines
11 KiB
JavaScript
// Copyright (c) 2008-2010 Kris Maglione <maglione.k at Gmail>
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//
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// This work is licensed for reuse under an MIT license. Details are
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// given in the LICENSE.txt file included with this file.
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"use strict";
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function reportError(e) {
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dump("dactyl: protocols: " + e + "\n" + (e.stack || Error().stack));
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Cu.reportError(e);
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}
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/* Adds support for data: URIs with chrome privileges
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* and fragment identifiers.
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*
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* "chrome-data:" <content-type> [; <flag>]* "," [<data>]
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*
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* By Kris Maglione, ideas from Ed Anuff's nsChromeExtensionHandler.
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*/
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var NAME = "protocols";
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var global = this;
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var Cc = Components.classes;
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var Ci = Components.interfaces;
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var Cu = Components.utils;
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var DNE = "resource://dactyl/content/does/not/exist";
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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var ioService = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
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var systemPrincipal = Cc["@mozilla.org/systemprincipal;1"].getService(Ci.nsIPrincipal);
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function makeChannel(url, orig) {
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try {
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if (url == null)
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return fakeChannel(orig);
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if (typeof url === "function")
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return let ([type, data] = url()) StringChannel(data, type, orig);
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let uri = ioService.newURI(url, null, null);
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return (new XMLChannel(uri)).channel;
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}
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catch (e) {
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util.reportError(e);
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throw e;
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}
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}
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function fakeChannel(orig) {
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let channel = ioService.newChannel(DNE, null, null);
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channel.originalURI = orig;
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return channel;
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}
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function redirect(to, orig, time) {
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let html = <html><head><meta http-equiv="Refresh" content={(time || 0) + ";" + to}/></head></html>.toXMLString();
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return StringChannel(html, "text/html", ioService.newURI(to, null, null));
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}
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function Factory(clas) ({
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__proto__: clas.prototype,
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createInstance: function (outer, iid) {
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if (outer != null)
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throw Components.results.NS_ERROR_NO_AGGREGATION;
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if (!clas.instance)
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clas.instance = new clas();
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return clas.instance.QueryInterface(iid);
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}
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});
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function ChromeData() {}
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ChromeData.prototype = {
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contractID: "@mozilla.org/network/protocol;1?name=chrome-data",
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classID: Components.ID("{c1b67a07-18f7-4e13-b361-2edcc35a5a0d}"),
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classDescription: "Data URIs with chrome privileges",
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIProtocolHandler]),
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_xpcom_factory: Factory(ChromeData),
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scheme: "chrome-data",
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defaultPort: -1,
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allowPort: function (port, scheme) false,
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protocolFlags: Ci.nsIProtocolHandler.URI_NORELATIVE
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| Ci.nsIProtocolHandler.URI_NOAUTH
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| Ci.nsIProtocolHandler.URI_IS_UI_RESOURCE,
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newURI: function (spec, charset, baseURI) {
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var uri = Components.classes["@mozilla.org/network/standard-url;1"]
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.createInstance(Components.interfaces.nsIStandardURL)
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.QueryInterface(Components.interfaces.nsIURI);
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uri.init(uri.URLTYPE_STANDARD, this.defaultPort, spec, charset, null);
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return uri;
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},
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newChannel: function (uri) {
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try {
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if (uri.scheme == this.scheme) {
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let channel = ioService.newChannel(uri.spec.replace(/^.*?:\/*(.*)(?:#.*)?/, "data:$1"),
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null, null);
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channel.contentCharset = "UTF-8";
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channel.owner = systemPrincipal;
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channel.originalURI = uri;
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return channel;
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}
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}
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catch (e) {}
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return fakeChannel(uri);
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}
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};
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function Dactyl() {
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// Kill stupid validator warning.
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this["wrapped" + "JSObject"] = this;
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this.HELP_TAGS = {};
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this.FILE_MAP = {};
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this.OVERLAY_MAP = {};
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this.pages = {};
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Cu.import("resource://dactyl/bootstrap.jsm");
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require(global, "config");
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require(global, "services");
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require(global, "util");
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// Doesn't belong here:
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AboutHandler.prototype.register();
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}
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Dactyl.prototype = {
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contractID: "@mozilla.org/network/protocol;1?name=dactyl",
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classID: Components.ID("{9c8f2530-51c8-4d41-b356-319e0b155c44}"),
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classDescription: "Dactyl utility protocol",
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver, Ci.nsIProtocolHandler]),
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_xpcom_factory: Factory(Dactyl),
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init: function (obj) {
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for each (let prop in ["HELP_TAGS", "FILE_MAP", "OVERLAY_MAP"]) {
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this[prop] = this[prop].constructor();
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for (let [k, v] in Iterator(obj[prop] || {}))
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this[prop][k] = v;
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}
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this.initialized = true;
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},
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scheme: "dactyl",
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defaultPort: -1,
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allowPort: function (port, scheme) false,
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protocolFlags: 0
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| Ci.nsIProtocolHandler.URI_IS_UI_RESOURCE
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| Ci.nsIProtocolHandler.URI_IS_LOCAL_RESOURCE,
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newURI: function newURI(spec, charset, baseURI) {
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var uri = Cc["@mozilla.org/network/standard-url;1"]
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.createInstance(Ci.nsIStandardURL)
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.QueryInterface(Ci.nsIURI);
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uri.init(uri.URLTYPE_STANDARD, this.defaultPort, spec, charset, baseURI);
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return uri;
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},
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newChannel: function newChannel(uri) {
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try {
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if (/^help/.test(uri.host) && !("all" in this.FILE_MAP))
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return redirect(uri.spec, uri, 1);
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let path = decodeURIComponent(uri.path.replace(/^\/|#.*/g, ""));
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switch(uri.host) {
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case "content":
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return makeChannel(this.pages[path] || "resource://dactyl-content/" + path, uri);
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case "help":
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return makeChannel(this.FILE_MAP[path], uri);
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case "help-overlay":
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return makeChannel(this.OVERLAY_MAP[path], uri);
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case "help-tag":
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let tag = decodeURIComponent(uri.path.substr(1));
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if (tag in this.FILE_MAP)
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return redirect("dactyl://help/" + tag, uri);
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if (tag in this.HELP_TAGS)
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return redirect("dactyl://help/" + this.HELP_TAGS[tag] + "#" + tag, uri);
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case "locale":
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return makeChannel(["resource://dactyl-locale", config.locale, path].join("/"), uri);
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case "locale-local":
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return makeChannel(["resource://dactyl-local-locale", config.locale, path].join("/"), uri);
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}
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}
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catch (e) {}
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return fakeChannel(uri);
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},
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// FIXME: Belongs elsewhere
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_xpcom_categories: [{
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category: "profile-after-change",
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entry: "m-dactyl"
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}],
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observe: function observe(subject, topic, data) {
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if (topic === "profile-after-change") {
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Cu.import("resource://dactyl/bootstrap.jsm");
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require(global, "overlay");
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}
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}
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};
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function StringChannel(data, contentType, uri) {
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let channel = services.StreamChannel(uri);
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channel.contentStream = services.StringStream(data);
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if (contentType)
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channel.contentType = contentType;
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channel.contentCharset = "UTF-8";
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channel.owner = systemPrincipal;
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if (uri)
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channel.originalURI = uri;
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return channel;
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}
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function XMLChannel(uri, contentType) {
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let channel = services.io.newChannelFromURI(uri);
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try {
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var channelStream = channel.open();
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}
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catch (e) {
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this.channel = fakeChannel(uri);
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return;
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}
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this.uri = uri;
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this.sourceChannel = services.io.newChannelFromURI(uri);
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this.pipe = services.Pipe(true, true, 0, 0, null);
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this.writes = [];
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this.channel = services.StreamChannel(uri);
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this.channel.contentStream = this.pipe.inputStream;
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this.channel.contentType = contentType || channel.contentType;
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this.channel.contentCharset = "UTF-8";
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this.channel.owner = systemPrincipal;
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let stream = services.InputStream(channelStream);
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let [, pre, doctype, url, open, post] = util.regexp(<![CDATA[
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^ ([^]*?)
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(?:
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(<!DOCTYPE \s+ \S+ \s+) SYSTEM \s+ "([^"]*)"
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(\s+ \[)?
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([^]*)
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)?
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$
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]]>).exec(stream.read(4096));
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this.writes.push(pre);
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if (doctype) {
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this.writes.push(doctype + "[\n");
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try {
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this.writes.push(services.io.newChannel(url, null, null).open())
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}
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catch (e) {}
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if (!open)
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this.writes.push("\n]");
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this.writes.push(post)
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}
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this.writes.push(channelStream);
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this.writeNext();
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}
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XMLChannel.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIRequestObserver]),
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writeNext: function () {
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try {
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if (!this.writes.length)
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this.pipe.outputStream.close();
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else {
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let stream = this.writes.shift();
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if (isString(stream))
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stream = services.StringStream(stream);
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services.StreamCopier(stream, this.pipe.outputStream, null,
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false, true, 4096, true, false)
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.asyncCopy(this, null);
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}
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}
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catch (e) {
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util.reportError(e);
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}
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},
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onStartRequest: function (request, context) {},
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onStopRequest: function (request, context, statusCode) {
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this.writeNext();
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}
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};
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function AboutHandler() {}
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AboutHandler.prototype = {
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register: function () {
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try {
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JSMLoader.registerFactory(Factory(AboutHandler));
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}
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catch (e) {
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util.reportError(e);
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}
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},
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get classDescription() "About " + config.appName + " Page",
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classID: Components.ID("81495d80-89ee-4c36-a88d-ea7c4e5ac63f"),
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get contractID() "@mozilla.org/network/protocol/about;1?what=" + config.name,
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIAboutModule]),
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newChannel: function (uri) {
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let channel = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService)
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.newChannel("resource://dactyl-content/about.xul", null, null);
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channel.originalURI = uri;
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return channel;
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},
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getURIFlags: function (uri) Ci.nsIAboutModule.ALLOW_SCRIPT,
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};
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// A hack to get information about interfaces.
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// Doesn't belong here.
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function Shim() {}
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Shim.prototype = {
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contractID: "@dactyl.googlecode.com/base/xpc-interface-shim",
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classID: Components.ID("{f4506a17-5b4d-4cd9-92d4-2eb4630dc388}"),
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classDescription: "XPCOM empty interface shim",
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QueryInterface: function (iid) {
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if (iid.equals(Ci.nsISecurityCheckedComponent))
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throw Components.results.NS_ERROR_NO_INTERFACE;
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return this;
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},
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getHelperForLanguage: function () null,
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getInterfaces: function (count) { count.value = 0; }
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};
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if (XPCOMUtils.generateNSGetFactory)
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var NSGetFactory = XPCOMUtils.generateNSGetFactory([ChromeData, Dactyl, Shim]);
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else
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var NSGetModule = XPCOMUtils.generateNSGetModule([ChromeData, Dactyl, Shim]);
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var EXPORTED_SYMBOLS = ["NSGetFactory", "global"];
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// vim: set fdm=marker sw=4 ts=4 et:
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