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[tor-commits] [tor-browser] 81/85: Bug 28005: Implement .onion alias urlbar rewrites
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pierov pushed a commit to branch tor-browser-91.9.0esr-11.5-2
in repository tor-browser.
commit 0edd5ddc3a36baa95a6ad776d9a029e8ad2167a9
Author: Alex Catarineu <acat@xxxxxxxxxxxxxx>
AuthorDate: Thu Feb 13 13:24:33 2020 +0100
Bug 28005: Implement .onion alias urlbar rewrites
The old patch to support .tor.onion hosts was implemented through
HTTPS-Everywhere.
Now that the extension has been deprecated (or is going to soon), we
have a new implementation, so we need only the code that interacts with
HTTPS-Everywhere, which we use to remove all SecureDrop channels,
rather than adding the 2021 one.
When we stop shipping HTTPS-Everywhere, we will be able to remove this
patch, and keep only the one for #40458.
---
.../onionservices/ExtensionMessaging.jsm | 77 +++++++++++++
.../onionservices/HttpsEverywhereControl.jsm | 127 +++++++++++++++++++++
browser/components/onionservices/moz.build | 6 +
3 files changed, 210 insertions(+)
diff --git a/browser/components/onionservices/ExtensionMessaging.jsm b/browser/components/onionservices/ExtensionMessaging.jsm
new file mode 100644
index 0000000000000..c93b8c6edf85b
--- /dev/null
+++ b/browser/components/onionservices/ExtensionMessaging.jsm
@@ -0,0 +1,77 @@
+// Copyright (c) 2020, The Tor Project, Inc.
+
+"use strict";
+
+const EXPORTED_SYMBOLS = ["ExtensionMessaging"];
+
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+const { ExtensionUtils } = ChromeUtils.import(
+ "resource://gre/modules/ExtensionUtils.jsm"
+);
+const { MessageChannel } = ChromeUtils.import(
+ "resource://gre/modules/MessageChannel.jsm"
+);
+const { AddonManager } = ChromeUtils.import(
+ "resource://gre/modules/AddonManager.jsm"
+);
+
+const { XPCOMUtils } = ChromeUtils.import(
+ "resource://gre/modules/XPCOMUtils.jsm"
+);
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+ ExtensionParent: "resource://gre/modules/ExtensionParent.jsm",
+});
+
+class ExtensionMessaging {
+ constructor() {
+ this._callback = null;
+ this._handlers = new Map();
+ this._messageManager = Services.cpmm;
+ }
+
+ async sendMessage(message, extensionId) {
+ const addon = await AddonManager.getAddonByID(extensionId);
+ if (!addon) {
+ throw new Error(`extension '${extensionId} does not exist`);
+ }
+ await addon.startupPromise;
+
+ const { torSendExtensionMessage } = ExtensionParent;
+ return torSendExtensionMessage(extensionId, message);
+ }
+
+ unload() {
+ if (this._callback) {
+ this._handlers.clear();
+ this._messageManager.removeMessageListener(
+ "MessageChannel:Response",
+ this._callback
+ );
+ this._callback = null;
+ }
+ }
+
+ _onMessage({ data }) {
+ const channelId = data.messageName;
+ if (this._handlers.has(channelId)) {
+ const { resolve, reject } = this._handlers.get(channelId);
+ this._handlers.delete(channelId);
+ if (data.error) {
+ reject(new Error(data.error.message));
+ } else {
+ resolve(data.value);
+ }
+ }
+ }
+
+ _init() {
+ if (this._callback === null) {
+ this._callback = this._onMessage.bind(this);
+ this._messageManager.addMessageListener(
+ "MessageChannel:Response",
+ this._callback
+ );
+ }
+ }
+}
diff --git a/browser/components/onionservices/HttpsEverywhereControl.jsm b/browser/components/onionservices/HttpsEverywhereControl.jsm
new file mode 100644
index 0000000000000..9e14b7d88b501
--- /dev/null
+++ b/browser/components/onionservices/HttpsEverywhereControl.jsm
@@ -0,0 +1,127 @@
+// Copyright (c) 2020, The Tor Project, Inc.
+
+"use strict";
+
+const EXPORTED_SYMBOLS = ["HttpsEverywhereControl"];
+
+const { ExtensionMessaging } = ChromeUtils.import(
+ "resource:///modules/ExtensionMessaging.jsm"
+);
+const { setTimeout } = ChromeUtils.import("resource://gre/modules/Timer.jsm");
+
+const EXTENSION_ID = "https-everywhere-eff@xxxxxxx";
+const SECUREDROP_TOR_ONION_CHANNEL_2020 = {
+ name: "SecureDropTorOnion",
+ jwk: {
+ kty: "RSA",
+ e: "AQAB",
+ n:
+ "p10BbUVc5Xj2S_-MH3bACNBaISo_r9e3PVPyTTjsGsdg2qSXvqUO42fBtpFAy0zUzIGS83v4JjiRdvKJaZTIvbC8AcpymzdsTqujMm8RPTSy3hO_8mXzGa4DEsIB1uNLnUWRBKXvSGCmT9kFyxhTpkYqokNBzafVihTU34tN2Md1xFHnmZGqfYtPtbJLWAa5Z1M11EyR4lIyUxIiPTV9t1XstDbWr3iS83REJrGEFmjG1-BAgx8_lDUTa41799N2yYEhgZud7bL0M3ei8s5OERjiion5uANkUV3-s2QqUZjiVA-XR_HizXjciaUWNd683KqekpNOZ_0STh_UGwpcwU-KwG07QyiCrLrRpz8S_vH8CqGrrcWY3GSzYe9dp34jJdO65oA-G8tK6fMXtvTCFDZI6oNNaXJH71F5J0YbqO2ZqwKYc2WSi0gKVl2wd9roOVjaBmkJqvocntYuNM7t38fDEWHn5KUkmrTbi [...]
+ },
+ update_path_prefix: "https://securedrop.org/https-everywhere/";,
+ scope:
+ "^https?:\\/\\/[a-z0-9-]+(?:\\.[a-z0-9-]+)*\\.securedrop\\.tor\\.onion\\/",
+ replaces_default_rulesets: false,
+};
+
+const SECUREDROP_TOR_ONION_CHANNEL = {
+ name: "SecureDropTorOnion2021",
+ jwk: {
+ kty: "RSA",
+ e: "AQAB",
+ n:
+ "vsC7BNafkRe8Uh1DUgCkv6RbPQMdJgAKKnWdSqQd7tQzU1mXfmo_k1Py_2MYMZXOWmqSZ9iwIYkykZYywJ2VyMGve4byj1sLn6YQoOkG8g5Z3V4y0S2RpEfmYumNjTzfq8nxtLnwjaYd4sCUd5wa0SzeLrpRQuXo2bF3QuUF2xcbLJloxX1MmlsMMCdBc-qGNonLJ7bpn_JuyXlDWy1Fkeyw1qgjiOdiRIbMC1x302zgzX6dSrBrNB8Cpsh-vCE0ZjUo8M9caEv06F6QbYmdGJHM0ZZY34OHMSNdf-_qUKIV_SuxuSuFE99tkAeWnbWpyI1V-xhVo1sc7NzChP8ci2TdPvI3_0JyAuCvL6zIFqJUJkZibEUghhg6F09-oNJKpy7rhUJq7zZyLXJsvuXnn0gnIxfjRvMcDfZAKUVMZKRdw7fwWzwQril4Ib0MQOVda9vb_4JMk7Gup-TUI4sfuS4NKwsnKoODIO-2U [...]
+ },
+ update_path_prefix: "https://securedrop.org/https-everywhere-2021/";,
+ scope:
+ "^https?:\\/\\/[a-z0-9-]+(?:\\.[a-z0-9-]+)*\\.securedrop\\.tor\\.onion\\/",
+ replaces_default_rulesets: false,
+};
+
+class HttpsEverywhereControl {
+ constructor() {
+ this._extensionMessaging = null;
+ this._init();
+ }
+
+ async _sendMessage(type, object) {
+ return this._extensionMessaging.sendMessage(
+ {
+ type,
+ object,
+ },
+ EXTENSION_ID
+ );
+ }
+
+ static async wait(seconds = 1) {
+ return new Promise(resolve => setTimeout(resolve, seconds * 1000));
+ }
+
+ /**
+ * Uninstalls old .tor.onion update channels from https-everywhere
+ */
+ async uninstallTorOnionUpdateChannel(retries = 5) {
+
+ // TODO: https-everywhere store is initialized asynchronously, so sending a message
+ // immediately results in a `store.get is undefined` error.
+ // For now, let's wait a bit and retry a few times if there is an error, but perhaps
+ // we could suggest https-everywhere to send a message when that happens and listen
+ // for that here.
+ await HttpsEverywhereControl.wait();
+
+ // We now handle .tor.onion domains with our first-party component, so we
+ // remove known rules from HTTPS-Everywhere.
+
+ try {
+ await this._sendMessage(
+ "delete_update_channel",
+ SECUREDROP_TOR_ONION_CHANNEL_2020.name
+ );
+ } catch (e) {
+ if (retries <= 0) {
+ console.warn("Cannot uninstall the SecureDropTorOnion 2020 channel", e);
+ throw new Error("Could not uninstall the SecureDropTorOnion update channel");
+ }
+ await this.uninstallTorOnionUpdateChannel(retries - 1);
+ return;
+ }
+ try {
+ await this._sendMessage(
+ "delete_update_channel",
+ SECUREDROP_TOR_ONION_CHANNEL.name
+ );
+ } catch (e) {
+ if (retries <= 0) {
+ console.warn("Cannot uninstall the SecureDropTorOnion 2021 channel", e);
+ throw new Error("Could not uninstall the SecureDropTorOnion update channel");
+ }
+ await this.uninstallTorOnionUpdateChannel(retries - 1);
+ return;
+ }
+ }
+
+ _init() {
+ if (!this._extensionMessaging) {
+ this._extensionMessaging = new ExtensionMessaging();
+ }
+
+ // update all of the existing https-everywhere channels
+ setTimeout(async () => {
+ await this.uninstallTorOnionUpdateChannel();
+
+ let pinnedChannels = await this._sendMessage("get_pinned_update_channels");
+ for(let channel of pinnedChannels.update_channels) {
+ this._sendMessage("update_update_channel", channel);
+ }
+
+ let storedChannels = await this._sendMessage("get_stored_update_channels");
+ for(let channel of storedChannels.update_channels) {
+ this._sendMessage("update_update_channel", channel);
+ }
+
+ this._extensionMessaging.unload();
+ this._extensionMessaging = null;
+ }, 0);
+ }
+}
diff --git a/browser/components/onionservices/moz.build b/browser/components/onionservices/moz.build
index 2661ad7cb9f3d..8156853220244 100644
--- a/browser/components/onionservices/moz.build
+++ b/browser/components/onionservices/moz.build
@@ -1 +1,7 @@
JAR_MANIFESTS += ["jar.mn"]
+
+EXTRA_JS_MODULES += [
+ "ExtensionMessaging.jsm",
+ "HttpsEverywhereControl.jsm",
+ "OnionAliasStore.jsm",
+]
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