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/*******************************************************************************
ηMatrix - a browser extension to black/white list requests.
Copyright (C) 2014-2019 The uMatrix/uBlock Origin authors
Copyright (C) 2019-2022 Alessio Vanni
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://gitlab.com/vannilla/ematrix
uMatrix Home: https://github.com/gorhill/uMatrix
*/
'use strict';
/******************************************************************************/
(function () {
vAPI.browser = {};
vAPI.browser.getTabBrowser = function (win) {
return win && win.gBrowser || null;
};
vAPI.browser.getOwnerWindow = function (target) {
if (target.ownerDocument) {
return target.ownerDocument.defaultView;
}
return null;
};
vAPI.browser.settings = {
// For now, only booleans.
originalValues: {},
rememberOriginalValue: function (path, setting) {
let key = path + '.' + setting;
if (this.originalValues.hasOwnProperty(key)) {
return;
}
let hasUserValue;
let branch = Services.prefs.getBranch(path + '.');
try {
hasUserValue = branch.prefHasUserValue(setting);
} catch (ex) {
// Ignore
}
if (hasUserValue !== undefined) {
this.originalValues[key] = hasUserValue
? this.getValue(path, setting)
: undefined;
}
},
clear: function (path, setting) {
let key = path + '.' + setting;
// Value was not overriden -- nothing to restore
if (this.originalValues.hasOwnProperty(key) === false) {
return;
}
let value = this.originalValues[key];
// https://github.com/gorhill/uBlock/issues/292#issuecomment-109621979
// Forget the value immediately, it may change outside of
// uBlock control.
delete this.originalValues[key];
// Original value was a default one
if (value === undefined) {
try {
Services.prefs.getBranch(path + '.').clearUserPref(setting);
} catch (ex) {
// Ignore
}
return;
}
// Reset to original value
this.setValue(path, setting, value);
},
getValue: function (path, setting) {
let branch = Services.prefs.getBranch(path + '.');
try {
switch (branch.getPrefType(setting)) {
case branch.PREF_INT:
return branch.getIntPref(setting);
case branch.PREF_BOOL:
return branch.getBoolPref(setting);
default:
// not supported
return;
}
} catch (e) {
// Ignore
}
},
setValue: function (path, setting, value) {
let branch = Services.prefs.getBranch(path + '.');
try {
switch (typeof value) {
case 'number':
return branch.setIntPref(setting, value);
case 'boolean':
return branch.setBoolPref(setting, value);
default:
// not supported
return;
}
} catch (e) {
// Ignore
}
},
setSetting: function (setting, value) {
switch (setting) {
case 'prefetching':
this.rememberOriginalValue('network', 'prefetch-next');
// https://bugzilla.mozilla.org/show_bug.cgi?id=814169
// Sigh.
// eMatrix: doesn't seem the case for Pale
// Moon/Basilisk, but let's keep this anyway
this.rememberOriginalValue('network.http', 'speculative-parallel-limit');
// https://github.com/gorhill/uBlock/issues/292
// "true" means "do not disable", i.e. leave entry alone
if (value) {
this.clear('network', 'prefetch-next');
this.clear('network.http', 'speculative-parallel-limit');
} else {
this.setValue('network', 'prefetch-next', false);
this.setValue('network.http',
'speculative-parallel-limit', 0);
}
break;
case 'hyperlinkAuditing':
this.rememberOriginalValue('browser', 'send_pings');
this.rememberOriginalValue('beacon', 'enabled');
// https://github.com/gorhill/uBlock/issues/292
// "true" means "do not disable", i.e. leave entry alone
if (value) {
this.clear('browser', 'send_pings');
this.clear('beacon', 'enabled');
} else {
this.setValue('browser', 'send_pings', false);
this.setValue('beacon', 'enabled', false);
}
break;
case 'webrtcIPAddress':
let prefName;
let prefVal;
// https://github.com/gorhill/uBlock/issues/894
// Do not disable completely WebRTC if it can be avoided. FF42+
// has a `media.peerconnection.ice.default_address_only` pref which
// purpose is to prevent local IP address leakage.
if (this.getValue('media.peerconnection',
'ice.default_address_only') !== undefined) {
prefName = 'ice.default_address_only';
prefVal = true;
} else {
prefName = 'enabled';
prefVal = false;
}
this.rememberOriginalValue('media.peerconnection', prefName);
if (value) {
this.clear('media.peerconnection', prefName);
} else {
this.setValue('media.peerconnection', prefName, prefVal);
}
break;
default:
break;
}
},
set: function (details) {
for (let setting in details) {
if (details.hasOwnProperty(setting) === false) {
continue;
}
this.setSetting(setting, !!details[setting]);
}
},
restoreAll: function () {
let pos;
for (let key in this.originalValues) {
if (this.originalValues.hasOwnProperty(key) === false) {
continue;
}
pos = key.lastIndexOf('.');
this.clear(key.slice(0, pos), key.slice(pos + 1));
}
},
};
vAPI.addCleanUpTask(vAPI.browser.settings
.restoreAll.bind(vAPI.browser.settings));
vAPI.browser.data = {};
vAPI.browser.data.clearCache = function (callback) {
// PURGE_DISK_DATA_ONLY:1
// PURGE_DISK_ALL:2
// PURGE_EVERYTHING:3
// However I verified that no argument does clear the cache data.
// There is no cache2 for older versions of Firefox.
if (Services.cache2) {
Services.cache2.clear();
} else if (Services.cache) {
Services.cache.evictEntries(Services.cache.STORE_ON_DISK);
}
if (typeof callback === 'function') {
callback();
}
};
vAPI.browser.data.clearOrigin = function(/* domain */) {
// TODO
// eMatrix: is this actually needed? I don't really know what
// it's supposed to do anyway.
};
})();
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