1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 const kInChildProcess =
6 Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT;
8 const kAllowedPrefs = new Set([
9 // NB: please leave the testing prefs at the top, and sort the rest alphabetically if you add
11 "testing.allowed-prefs.some-bool-pref",
12 "testing.allowed-prefs.some-char-pref",
13 "testing.allowed-prefs.some-int-pref",
15 "browser.contentblocking.report.hide_vpn_banner",
16 "browser.contentblocking.report.show_mobile_app",
18 "browser.shopping.experience2023.optedIn",
19 "browser.shopping.experience2023.active",
20 "browser.shopping.experience2023.ads.userEnabled",
21 "browser.shopping.experience2023.autoOpen.enabled",
22 "browser.shopping.experience2023.autoOpen.userEnabled",
23 "browser.shopping.experience2023.showKeepSidebarClosedMessage",
24 "browser.shopping.experience2023.sidebarClosedCount",
31 "reader.color_scheme",
32 "reader.content_width",
34 "reader.custom_colors.foreground",
35 "reader.custom_colors.background",
36 "reader.custom_colors.unvisited-links",
37 "reader.custom_colors.visited-links",
38 "reader.custom_colors.selection-highlight",
40 "security.tls.version.enable-deprecated",
41 "security.xfocsp.errorReporting.automatic",
43 "network.trr.display_fallback_warning",
46 const kPrefTypeMap = new Map([
47 ["boolean", Services.prefs.PREF_BOOL],
48 ["number", Services.prefs.PREF_INT],
49 ["string", Services.prefs.PREF_STRING],
52 function maybeReturnErrorForReset(pref) {
53 if (!kAllowedPrefs.has(pref)) {
54 return `Resetting pref ${pref} from content is not allowed.`;
59 function maybeReturnErrorForSet(pref, value) {
60 if (!kAllowedPrefs.has(pref)) {
61 return `Setting pref ${pref} from content is not allowed.`;
64 let valueType = typeof value;
65 if (!kPrefTypeMap.has(valueType)) {
66 return `Can't set pref ${pref} to value of type ${valueType}.`;
68 let prefType = Services.prefs.getPrefType(pref);
70 prefType != Services.prefs.PREF_INVALID &&
71 prefType != kPrefTypeMap.get(valueType)
73 return `Can't set pref ${pref} to a value with type ${valueType} that doesn't match the pref's type ${prefType}.`;
78 export class AsyncPrefsChild extends JSProcessActorChild {
80 let error = maybeReturnErrorForSet(pref, value);
82 return Promise.reject(error);
85 return this.sendQuery("AsyncPrefs:SetPref", {
92 let error = maybeReturnErrorForReset(pref);
94 return Promise.reject(error);
97 return this.sendQuery("AsyncPrefs:ResetPref", { pref });
101 export var AsyncPrefs = {
103 if (kInChildProcess) {
104 return ChromeUtils.domProcessChild
105 .getActor("AsyncPrefs")
108 return AsyncPrefsParent.set(pref, value);
112 if (kInChildProcess) {
113 return ChromeUtils.domProcessChild.getActor("AsyncPrefs").reset(pref);
115 return AsyncPrefsParent.reset(pref);
119 const methodForType = {
120 number: "setIntPref",
121 boolean: "setBoolPref",
122 string: "setCharPref",
125 export class AsyncPrefsParent extends JSProcessActorParent {
126 static set(pref, value) {
127 let error = maybeReturnErrorForSet(pref, value);
129 return Promise.reject(error);
131 let methodToUse = methodForType[typeof value];
133 Services.prefs[methodToUse](pref, value);
136 return Promise.reject(ex.message);
139 return Promise.resolve(value);
143 let error = maybeReturnErrorForReset(pref);
145 return Promise.reject(error);
149 Services.prefs.clearUserPref(pref);
152 return Promise.reject(ex.message);
155 return Promise.resolve();
158 receiveMessage(msg) {
159 if (msg.name == "AsyncPrefs:SetPref") {
160 return AsyncPrefsParent.set(msg.data.pref, msg.data.value);
162 return AsyncPrefsParent.reset(msg.data.pref);