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Bug 1473181 - Observe http modify request rather than useragent request in the GWS/FB addon to support overriding UA string on XHRs as well. r=mconley

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MozReview-Commit-ID: 9mqzDvaPx3A

--HG--
extra : rebase_source : 9d13d81042fa26ae2e84f5987416dac076debd23
This commit is contained in:
Thomas Wisniewski 2018-07-03 20:09:26 -04:00
parent 41895658f3
commit e61f535377
1 changed files with 41 additions and 23 deletions
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64
mobile/android/extensions/gws-and-facebook-chrome-spoof/bootstrap.js vendored
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@ -8,8 +8,6 @@
ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
ChromeUtils.import("resource://gre/modules/Services.jsm");
ChromeUtils.defineModuleGetter(this, "UserAgentOverrides", "resource://gre/modules/UserAgentOverrides.jsm");
Cu.importGlobalProperties(["URL"]);
const TLDsToSpoof = /(^(www|encrypted|maps)\.google\.)|((.*\.facebook|.*\.fbcdn|.*\.fbsbx)\.(com|net)$)/;
@ -30,12 +28,48 @@ const IsPhone = defaultUA.includes("Mobile");
const TargetUA = IsPhone ? ChromePhoneUA : ChromeTabletUA;
const EnabledPref = "extensions.gws-and-facebook-chrome-spoof.enabled";
const EnabledPrefBranch = "extensions.gws-and-facebook-chrome-spoof.";
const EnabledPref = `${EnabledPrefBranch}enabled`;
let Enabled = true;
const Observer = {
observe: function HTTP_on_modify_request(aSubject, aTopic, aData) {
let channel = aSubject.QueryInterface(Ci.nsIHttpChannel);
if (channel && channel.URI.asciiHost.match(TLDsToSpoof)) {
channel.setRequestHeader("User-Agent", TargetUA, false);
console.info(OverrideNotice);
}
}
};
function enable() {
try {
Services.obs.addObserver(Observer, "http-on-modify-request");
} catch (_) {
}
}
function disable() {
try {
Services.obs.removeObserver(Observer, "http-on-modify-request");
} catch (_) {
}
}
function checkIfEnabled() {
Enabled = Services.prefs.getBoolPref(EnabledPref, true);
try {
if (Services.prefs.getBoolPref(EnabledPref)) {
enable();
} else {
disable();
}
} catch (_) {
// If the pref does not exist yet, we specify a default value of true.
// (the "reset" option in about:config removes prefs without defaults,
// and our add-on will not be informed, forcing the user to re-create
// the pref manually to disable the add-on).
Services.prefs.getDefaultBranch(EnabledPrefBranch).setBoolPref("enabled", true);
enable();
}
}
this.install = () => {
@ -43,31 +77,15 @@ this.install = () => {
};
this.uninstall = () => {
Services.prefs.clearUserPref(EnabledPref);
Services.prefs.getDefaultBranch(null).deleteBranch(EnabledPrefBranch);
};
this.shutdown = () => {
Services.prefs.removeObserver(EnabledPref, checkIfEnabled);
Enabled = false;
disable();
};
this.startup = () => {
UserAgentOverrides.addComplexOverride((channel, defaultUA) => {
if (!Enabled) {
return false;
}
try {
let domain = new URL(channel.URI.spec).host;
if (domain.match(TLDsToSpoof)) {
console.info(OverrideNotice);
return TargetUA;
}
} catch (_) {
}
return false;
});
Services.prefs.addObserver(EnabledPref, checkIfEnabled);
checkIfEnabled();
};