From 9c003ec233136690c4efcee15341352400ce145d Mon Sep 17 00:00:00 2001 From: praschke Date: Sun, 29 Oct 2023 16:08:53 +0000 Subject: remove webRequest from chrome for real --- ext/js/background/request-builder.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'ext/js/background/request-builder.js') diff --git a/ext/js/background/request-builder.js b/ext/js/background/request-builder.js index 663e242b..bf770964 100644 --- a/ext/js/background/request-builder.js +++ b/ext/js/background/request-builder.js @@ -313,7 +313,7 @@ class RequestBuilder { await this._updateDynamicRules({addRules}); try { - return await this._fetchInternal(url, init, null); + return await fetch(url, init); } finally { await this._tryUpdateDynamicRules({removeRuleIds: [id]}); } -- cgit v1.2.3 From 0adf9cef27de2641718116b91a0c7426aac6814e Mon Sep 17 00:00:00 2001 From: praschke Date: Sun, 29 Oct 2023 20:50:45 +0000 Subject: fix: _getDynamicRules() returns a promise dynamic rules were never cleared, as the promise is not iterable as expected. --- ext/js/background/request-builder.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'ext/js/background/request-builder.js') diff --git a/ext/js/background/request-builder.js b/ext/js/background/request-builder.js index bf770964..03088fac 100644 --- a/ext/js/background/request-builder.js +++ b/ext/js/background/request-builder.js @@ -263,7 +263,7 @@ class RequestBuilder { async _clearDynamicRules() { if (!isObject(chrome.declarativeNetRequest)) { return; } - const rules = this._getDynamicRules(); + const rules = await this._getDynamicRules(); if (rules.length === 0) { return; } -- cgit v1.2.3 From ba8eec942c60cc8b676408efd99e3fbbb9670c06 Mon Sep 17 00:00:00 2001 From: praschke Date: Sun, 29 Oct 2023 20:59:05 +0000 Subject: fix: session rules should be used instead of dynamic rules session rules are less persistent than dynamic rules, and the intention of RequestBuilder is to only have rules active for the lifetime of specific requests. --- ext/js/background/request-builder.js | 50 +++++++++++++++++++++++++++++++++--- 1 file changed, 46 insertions(+), 4 deletions(-) (limited to 'ext/js/background/request-builder.js') diff --git a/ext/js/background/request-builder.js b/ext/js/background/request-builder.js index 03088fac..32c4a788 100644 --- a/ext/js/background/request-builder.js +++ b/ext/js/background/request-builder.js @@ -42,6 +42,7 @@ class RequestBuilder { async prepare() { try { await this._clearDynamicRules(); + await this._clearSessionRules(); } catch (e) { // NOP } @@ -260,6 +261,21 @@ class RequestBuilder { } } + async _clearSessionRules() { + if (!isObject(chrome.declarativeNetRequest)) { return; } + + const rules = await this._getSessionRules(); + + if (rules.length === 0) { return; } + + const removeRuleIds = []; + for (const {id} of rules) { + removeRuleIds.push(id); + } + + await this._updateSessionRules({removeRuleIds}); + } + async _clearDynamicRules() { if (!isObject(chrome.declarativeNetRequest)) { return; } @@ -311,17 +327,43 @@ class RequestBuilder { } }]; - await this._updateDynamicRules({addRules}); + await this._updateSessionRules({addRules}); try { return await fetch(url, init); } finally { - await this._tryUpdateDynamicRules({removeRuleIds: [id]}); + await this._tryUpdateSessionRules({removeRuleIds: [id]}); } } finally { this._ruleIds.delete(id); } } + _getSessionRules() { + return new Promise((resolve, reject) => { + chrome.declarativeNetRequest.getSessionRules((result) => { + const e = chrome.runtime.lastError; + if (e) { + reject(new Error(e.message)); + } else { + resolve(result); + } + }); + }); + } + + _updateSessionRules(options) { + return new Promise((resolve, reject) => { + chrome.declarativeNetRequest.updateSessionRules(options, () => { + const e = chrome.runtime.lastError; + if (e) { + reject(new Error(e.message)); + } else { + resolve(); + } + }); + }); + } + _getDynamicRules() { return new Promise((resolve, reject) => { chrome.declarativeNetRequest.getDynamicRules((result) => { @@ -348,9 +390,9 @@ class RequestBuilder { }); } - async _tryUpdateDynamicRules(options) { + async _tryUpdateSessionRules(options) { try { - await this._updateDynamicRules(options); + await this._updateSessionRules(options); return true; } catch (e) { return false; -- cgit v1.2.3 From e61a69fb9ed8ad1dc94b4695d9b9052f4a533a52 Mon Sep 17 00:00:00 2001 From: praschke Date: Sun, 29 Oct 2023 21:20:29 +0000 Subject: remove webRequest and webRequestBlocking firefox was previously unable to use declarativeNetRequest, as some browser state (ExtensionDNRStore) wasn't correctly initialized wrt yomitan's use of the DNR API. this bug manifested as an unexpected error on calls to updateDynamicRules(), specifically after the browser has been restarted. switching to the use of session rules instead of dynamic rules fixes this bug. i have tested audio info requests (custom JSON, JPod Alternate, Jisho) that exhibited the bug after browser restart on version 115 and 118, and the audio plays instead of the request failing. webRequest can now be entirely removed. --- dev/data/manifest-variants.json | 25 --- docs/permissions.md | 7 +- ext/js/background/request-builder.js | 306 ++++++++--------------------------- ext/permissions.html | 33 +--- 4 files changed, 74 insertions(+), 297 deletions(-) (limited to 'ext/js/background/request-builder.js') diff --git a/dev/data/manifest-variants.json b/dev/data/manifest-variants.json index 858dba65..4d4ec301 100644 --- a/dev/data/manifest-variants.json +++ b/dev/data/manifest-variants.json @@ -248,31 +248,6 @@ "nativeMessaging" ] }, - { - "action": "add", - "path": [ - "permissions" - ], - "items": [ - "webRequest" - ] - }, - { - "action": "add", - "path": [ - "permissions" - ], - "items": [ - "webRequestBlocking" - ] - }, - { - "action": "remove", - "path": [ - "permissions" - ], - "item": "declarativeNetRequest" - }, { "action": "remove", "path": [ diff --git a/docs/permissions.md b/docs/permissions.md index 3fdf72d8..8ab3bba5 100644 --- a/docs/permissions.md +++ b/docs/permissions.md @@ -9,12 +9,7 @@ `unlimitedStorage` is used to help prevent web browsers from unexpectedly deleting dictionary data. -* `webRequest` and `webRequestBlocking` _(Firefox only)_
- Yomichan uses these permissions to ensure certain requests have valid and secure headers. - This sometimes involves removing or changing the `Origin` request header, - as this can be used to fingerprint browser configuration. - -* `declarativeNetRequest` _(Chrome only)_
+* `declarativeNetRequest`
Yomichan uses this permission to ensure certain requests have valid and secure headers. This sometimes involves removing or changing the `Origin` request header, as this can be used to fingerprint browser configuration. diff --git a/ext/js/background/request-builder.js b/ext/js/background/request-builder.js index 32c4a788..7ee89539 100644 --- a/ext/js/background/request-builder.js +++ b/ext/js/background/request-builder.js @@ -31,7 +31,6 @@ class RequestBuilder { * Creates a new instance. */ constructor() { - this._onBeforeSendHeadersExtraInfoSpec = ['blocking', 'requestHeaders', 'extraHeaders']; this._textEncoder = new TextEncoder(); this._ruleIds = new Set(); } @@ -55,15 +54,50 @@ class RequestBuilder { * @returns {Promise} The response of the `fetch` call. */ async fetchAnonymous(url, init) { - if (isObject(chrome.declarativeNetRequest)) { - return await this._fetchAnonymousDeclarative(url, init); + const id = this._getNewRuleId(); + const originUrl = this._getOriginURL(url); + url = encodeURI(decodeURI(url)); + + this._ruleIds.add(id); + try { + const addRules = [{ + id, + priority: 1, + condition: { + urlFilter: `|${this._escapeDnrUrl(url)}|`, + resourceTypes: ['xmlhttprequest'] + }, + action: { + type: 'modifyHeaders', + requestHeaders: [ + { + operation: 'remove', + header: 'Cookie' + }, + { + operation: 'set', + header: 'Origin', + value: originUrl + } + ], + responseHeaders: [ + { + operation: 'remove', + header: 'Set-Cookie' + } + ] + } + }]; + + await this._updateSessionRules({addRules}); + try { + return await fetch(url, init); + } finally { + await this._tryUpdateSessionRules({removeRuleIds: [id]}); + } + } finally { + this._ruleIds.delete(id); } - const originURL = this._getOriginURL(url); - const headerModifications = [ - ['cookie', null], - ['origin', {name: 'Origin', value: originURL}] - ]; - return await this._fetchInternal(url, init, headerModifications); } /** @@ -126,144 +160,7 @@ class RequestBuilder { // Private - async _fetchInternal(url, init, headerModifications) { - const filter = { - urls: [this._getMatchURL(url)], - types: ['xmlhttprequest'] - }; - - let requestId = null; - const onBeforeSendHeadersCallback = (details) => { - if (requestId !== null || details.url !== url) { return {}; } - ({requestId} = details); - - if (headerModifications === null) { return {}; } - - const requestHeaders = details.requestHeaders; - this._modifyHeaders(requestHeaders, headerModifications); - return {requestHeaders}; - }; - - let errorDetailsTimer = null; - let {promise: errorDetailsPromise, resolve: errorDetailsResolve} = deferPromise(); - const onErrorOccurredCallback = (details) => { - if (errorDetailsResolve === null || details.requestId !== requestId) { return; } - if (errorDetailsTimer !== null) { - clearTimeout(errorDetailsTimer); - errorDetailsTimer = null; - } - errorDetailsResolve(details); - errorDetailsResolve = null; - }; - - const eventListeners = []; - const onBeforeSendHeadersExtraInfoSpec = (headerModifications !== null ? this._onBeforeSendHeadersExtraInfoSpec : []); - this._addWebRequestEventListener(chrome.webRequest.onBeforeSendHeaders, onBeforeSendHeadersCallback, filter, onBeforeSendHeadersExtraInfoSpec, eventListeners); - this._addWebRequestEventListener(chrome.webRequest.onErrorOccurred, onErrorOccurredCallback, filter, void 0, eventListeners); - - try { - return await fetch(url, init); - } catch (e) { - // onErrorOccurred is not always invoked by this point, so a delay is needed - if (errorDetailsResolve !== null) { - errorDetailsTimer = setTimeout(() => { - errorDetailsTimer = null; - if (errorDetailsResolve === null) { return; } - errorDetailsResolve(null); - errorDetailsResolve = null; - }, 100); - } - const details = await errorDetailsPromise; - if (details !== null) { - const data = {details}; - this._assignErrorData(e, data); - } - throw e; - } finally { - this._removeWebRequestEventListeners(eventListeners); - } - } - - _addWebRequestEventListener(target, callback, filter, extraInfoSpec, eventListeners) { - try { - for (let i = 0; i < 2; ++i) { - try { - if (typeof extraInfoSpec === 'undefined') { - target.addListener(callback, filter); - } else { - target.addListener(callback, filter, extraInfoSpec); - } - break; - } catch (e) { - // Firefox doesn't support the 'extraHeaders' option and will throw the following error: - // Type error for parameter extraInfoSpec (Error processing 2: Invalid enumeration value "extraHeaders") for [target]. - if (i === 0 && `${e.message}`.includes('extraHeaders') && Array.isArray(extraInfoSpec)) { - const index = extraInfoSpec.indexOf('extraHeaders'); - if (index >= 0) { - extraInfoSpec.splice(index, 1); - continue; - } - } - throw e; - } - } - } catch (e) { - console.log(e); - return; - } - eventListeners.push({target, callback}); - } - - _removeWebRequestEventListeners(eventListeners) { - for (const {target, callback} of eventListeners) { - try { - target.removeListener(callback); - } catch (e) { - console.log(e); - } - } - } - - _getMatchURL(url) { - const url2 = new URL(url); - return `${url2.protocol}//${url2.host}${url2.pathname}${url2.search}`.replace(/\*/g, '%2a'); - } - - _getOriginURL(url) { - const url2 = new URL(url); - return `${url2.protocol}//${url2.host}`; - } - - _modifyHeaders(headers, modifications) { - modifications = new Map(modifications); - - for (let i = 0, ii = headers.length; i < ii; ++i) { - const header = headers[i]; - const name = header.name.toLowerCase(); - const modification = modifications.get(name); - if (typeof modification === 'undefined') { continue; } - - modifications.delete(name); - - if (modification === null) { - headers.splice(i, 1); - --i; - --ii; - } else { - headers[i] = modification; - } - } - - for (const header of modifications.values()) { - if (header !== null) { - headers.push(header); - } - } - } - async _clearSessionRules() { - if (!isObject(chrome.declarativeNetRequest)) { return; } - const rules = await this._getSessionRules(); if (rules.length === 0) { return; } @@ -276,68 +173,6 @@ class RequestBuilder { await this._updateSessionRules({removeRuleIds}); } - async _clearDynamicRules() { - if (!isObject(chrome.declarativeNetRequest)) { return; } - - const rules = await this._getDynamicRules(); - - if (rules.length === 0) { return; } - - const removeRuleIds = []; - for (const {id} of rules) { - removeRuleIds.push(id); - } - - await this._updateDynamicRules({removeRuleIds}); - } - - async _fetchAnonymousDeclarative(url, init) { - const id = this._getNewRuleId(); - const originUrl = this._getOriginURL(url); - url = encodeURI(decodeURI(url)); - - this._ruleIds.add(id); - try { - const addRules = [{ - id, - priority: 1, - condition: { - urlFilter: `|${this._escapeDnrUrl(url)}|`, - resourceTypes: ['xmlhttprequest'] - }, - action: { - type: 'modifyHeaders', - requestHeaders: [ - { - operation: 'remove', - header: 'Cookie' - }, - { - operation: 'set', - header: 'Origin', - value: originUrl - } - ], - responseHeaders: [ - { - operation: 'remove', - header: 'Set-Cookie' - } - ] - } - }]; - - await this._updateSessionRules({addRules}); - try { - return await fetch(url, init); - } finally { - await this._tryUpdateSessionRules({removeRuleIds: [id]}); - } - } finally { - this._ruleIds.delete(id); - } - } - _getSessionRules() { return new Promise((resolve, reject) => { chrome.declarativeNetRequest.getSessionRules((result) => { @@ -364,6 +199,28 @@ class RequestBuilder { }); } + async _tryUpdateSessionRules(options) { + try { + await this._updateSessionRules(options); + return true; + } catch (e) { + return false; + } + } + + async _clearDynamicRules() { + const rules = await this._getDynamicRules(); + + if (rules.length === 0) { return; } + + const removeRuleIds = []; + for (const {id} of rules) { + removeRuleIds.push(id); + } + + await this._updateDynamicRules({removeRuleIds}); + } + _getDynamicRules() { return new Promise((resolve, reject) => { chrome.declarativeNetRequest.getDynamicRules((result) => { @@ -390,15 +247,6 @@ class RequestBuilder { }); } - async _tryUpdateSessionRules(options) { - try { - await this._updateSessionRules(options); - return true; - } catch (e) { - return false; - } - } - _getNewRuleId() { let id = 1; while (this._ruleIds.has(id)) { @@ -409,6 +257,11 @@ class RequestBuilder { return id; } + _getOriginURL(url) { + const url2 = new URL(url); + return `${url2.protocol}//${url2.host}`; + } + _escapeDnrUrl(url) { return url.replace(/[|*^]/g, (char) => this._urlEncodeUtf8(char)); } @@ -422,25 +275,6 @@ class RequestBuilder { return result; } - _assignErrorData(error, data) { - try { - error.data = data; - } catch (e) { - // On Firefox, assigning DOMException.data can fail in certain contexts. - // https://bugzilla.mozilla.org/show_bug.cgi?id=1776555 - try { - Object.defineProperty(error, 'data', { - configurable: true, - enumerable: true, - writable: true, - value: data - }); - } catch (e2) { - // NOP - } - } - } - static _joinUint8Arrays(items, totalLength) { if (items.length === 1) { const {array, length} = items[0]; diff --git a/ext/permissions.html b/ext/permissions.html index 4aaef3c1..f6956cd7 100644 --- a/ext/permissions.html +++ b/ext/permissions.html @@ -47,22 +47,7 @@ -
-
-
webRequest and webRequestBlocking
-
-

- Yomitan uses these permissions to ensure certain requests have valid and secure headers. - This sometimes involves removing or changing the Origin request header, - as this can be used to fingerprint browser configuration. -

-

- Example: Origin: -

-
-
-
-
+
declarativeNetRequest
@@ -77,11 +62,11 @@
-
+
scripting
- Yomitan will sometimes need to inject stylesheets into webpages in order to + Yomitan needs to inject content scripts and stylesheets into webpages in order to properly display the search popup.
@@ -123,18 +108,6 @@
-
-
-
webNavigation (optional)
-
- Yomitan may require this permission to inject content scripts for certain browsers - if Google Docs accessibility mode is enabled. -
-
-
- -
-
Allow in private windows (optional)
-- cgit v1.2.3