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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /toolkit/components/utils/SimpleServices.sys.mjs
parentInitial commit. (diff)
downloadfirefox-upstream.tar.xz
firefox-upstream.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'toolkit/components/utils/SimpleServices.sys.mjs')
-rw-r--r--toolkit/components/utils/SimpleServices.sys.mjs177
1 files changed, 177 insertions, 0 deletions
diff --git a/toolkit/components/utils/SimpleServices.sys.mjs b/toolkit/components/utils/SimpleServices.sys.mjs
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Dumping ground for simple services for which the isolation of a full global
+ * is overkill. Be careful about namespace pollution, and be mindful about
+ * importing lots of JSMs in global scope, since this file will almost certainly
+ * be loaded from enough callsites that any such imports will always end up getting
+ * eagerly loaded at startup.
+ */
+
+/* globals WebExtensionPolicy */
+
+import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
+
+const lazy = {};
+
+ChromeUtils.defineModuleGetter(
+ lazy,
+ "NetUtil",
+ "resource://gre/modules/NetUtil.jsm"
+);
+
+XPCOMUtils.defineLazyServiceGetter(
+ lazy,
+ "streamConv",
+ "@mozilla.org/streamConverters;1",
+ "nsIStreamConverterService"
+);
+const ArrayBufferInputStream = Components.Constructor(
+ "@mozilla.org/io/arraybuffer-input-stream;1",
+ "nsIArrayBufferInputStream",
+ "setData"
+);
+
+/*
+ * This class provides a stream filter for locale messages in CSS files served
+ * by the moz-extension: protocol handler.
+ *
+ * See SubstituteChannel in netwerk/protocol/res/ExtensionProtocolHandler.cpp
+ * for usage.
+ */
+export function AddonLocalizationConverter() {}
+
+AddonLocalizationConverter.prototype = {
+ QueryInterface: ChromeUtils.generateQI(["nsIStreamConverter"]),
+
+ FROM_TYPE: "application/vnd.mozilla.webext.unlocalized",
+ TO_TYPE: "text/css",
+
+ checkTypes(aFromType, aToType) {
+ if (aFromType != this.FROM_TYPE) {
+ throw Components.Exception(
+ "Invalid aFromType value",
+ Cr.NS_ERROR_INVALID_ARG,
+ Components.stack.caller.caller
+ );
+ }
+ if (aToType != this.TO_TYPE) {
+ throw Components.Exception(
+ "Invalid aToType value",
+ Cr.NS_ERROR_INVALID_ARG,
+ Components.stack.caller.caller
+ );
+ }
+ },
+
+ // aContext must be a nsIURI object for a valid moz-extension: URL.
+ getAddon(aContext) {
+ // In this case, we want the add-on ID even if the URL is web accessible,
+ // so check the root rather than the exact path.
+ let uri = Services.io.newURI("/", null, aContext);
+
+ let addon = WebExtensionPolicy.getByURI(uri);
+ if (!addon) {
+ throw new Components.Exception(
+ "Invalid context",
+ Cr.NS_ERROR_INVALID_ARG
+ );
+ }
+ return addon;
+ },
+
+ convertToStream(aAddon, aString) {
+ aString = aAddon.localize(aString);
+ let bytes = new TextEncoder().encode(aString).buffer;
+ return new ArrayBufferInputStream(bytes, 0, bytes.byteLength);
+ },
+
+ convert(aStream, aFromType, aToType, aContext) {
+ this.checkTypes(aFromType, aToType);
+ let addon = this.getAddon(aContext);
+
+ let count = aStream.available();
+ let string = count
+ ? new TextDecoder().decode(lazy.NetUtil.readInputStream(aStream, count))
+ : "";
+ return this.convertToStream(addon, string);
+ },
+
+ asyncConvertData(aFromType, aToType, aListener, aContext) {
+ this.checkTypes(aFromType, aToType);
+ this.addon = this.getAddon(aContext);
+ this.listener = aListener;
+ },
+
+ onStartRequest(aRequest) {
+ this.parts = [];
+ this.decoder = new TextDecoder();
+ },
+
+ onDataAvailable(aRequest, aInputStream, aOffset, aCount) {
+ let bytes = lazy.NetUtil.readInputStream(aInputStream, aCount);
+ this.parts.push(this.decoder.decode(bytes, { stream: true }));
+ },
+
+ onStopRequest(aRequest, aStatusCode) {
+ try {
+ this.listener.onStartRequest(aRequest, null);
+ if (Components.isSuccessCode(aStatusCode)) {
+ this.parts.push(this.decoder.decode());
+ let string = this.parts.join("");
+ let stream = this.convertToStream(this.addon, string);
+
+ this.listener.onDataAvailable(aRequest, stream, 0, stream.available());
+ }
+ } catch (e) {
+ aStatusCode = e.result || Cr.NS_ERROR_FAILURE;
+ }
+ this.listener.onStopRequest(aRequest, aStatusCode);
+ },
+};
+
+export function HttpIndexViewer() {}
+
+HttpIndexViewer.prototype = {
+ QueryInterface: ChromeUtils.generateQI(["nsIDocumentLoaderFactory"]),
+
+ createInstance(
+ aCommand,
+ aChannel,
+ aLoadGroup,
+ aContentType,
+ aContainer,
+ aExtraInfo,
+ aDocListenerResult
+ ) {
+ aChannel.contentType = "text/html";
+
+ let contract = Services.catMan.getCategoryEntry(
+ "Gecko-Content-Viewers",
+ "text/html"
+ );
+ let factory = Cc[contract].getService(Ci.nsIDocumentLoaderFactory);
+
+ let listener = {};
+ let res = factory.createInstance(
+ "view",
+ aChannel,
+ aLoadGroup,
+ "text/html",
+ aContainer,
+ aExtraInfo,
+ listener
+ );
+
+ aDocListenerResult.value = lazy.streamConv.asyncConvertData(
+ "application/http-index-format",
+ "text/html",
+ listener.value,
+ null
+ );
+
+ return res;
+ },
+};