зеркало из https://github.com/mozilla/gecko-dev.git
188 строки
7.1 KiB
JavaScript
188 строки
7.1 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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const APP_UPDATE_URL_PREF = "app.update.url";
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const REPLACE_KEY = "%OS_VERSION%";
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const AUSHELPER_CPU_RESULT_CODE_HISTOGRAM_ID = "AUSHELPER_CPU_RESULT_CODE";
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// The system is not vulnerable to Bug 1296630.
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const CPU_NO_BUG1296630 = 1;
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// The system is vulnerable to Bug 1296630.
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const CPU_YES_BUG1296630 = 2;
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// An error occured when checking if the system is vulnerable to Bug 1296630.
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const CPU_ERR_BUG1296630 = 3;
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// It is unknown whether the system is vulnerable to Bug 1296630 (should never happen).
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const CPU_UNKNOWN_BUG1296630 = 4;
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const AUSHELPER_CPU_ERROR_CODE_HISTOGRAM_ID = "AUSHELPER_CPU_ERROR_CODE";
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const CPU_SUCCESS = 0;
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const CPU_REG_OPEN_ERROR = 1;
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const CPU_VENDOR_ID_ERROR = 2;
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const CPU_ID_ERROR = 4;
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const CPU_REV_ERROR = 8;
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const AUSHELPER_WEBSENSE_REG_VERSION_SCALAR_NAME = "aushelper.websense_reg_version";
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const AUSHELPER_WEBSENSE_REG_EXISTS_HISTOGRAM_ID = "AUSHELPER_WEBSENSE_REG_EXISTS";
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const AUSHELPER_WEBSENSE_ERROR_CODE_HISTOGRAM_ID = "AUSHELPER_WEBSENSE_ERROR_CODE";
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const WEBSENSE_SUCCESS = 0;
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const WEBSENSE_REG_OPEN_ERROR = 1;
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const WEBSENSE_REG_READ_ERROR = 2;
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const WEBSENSE_ALREADY_MODIFIED = 4;
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ChromeUtils.import("resource://gre/modules/Services.jsm");
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function startup() {
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if (Services.appinfo.OS != "WINNT") {
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return;
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}
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const regCPUPath = "HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0";
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let wrk;
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let cpuErrorCode = CPU_SUCCESS;
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try {
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wrk = Cc["@mozilla.org/windows-registry-key;1"].createInstance(Ci.nsIWindowsRegKey);
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wrk.open(wrk.ROOT_KEY_LOCAL_MACHINE, regCPUPath, wrk.ACCESS_READ);
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} catch (e) {
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Cu.reportError("AUSHelper - unable to open registry. Exception: " + e);
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cpuErrorCode |= CPU_REG_OPEN_ERROR;
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}
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// If any of the following values are successfully retrieved and they don't
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// match the condition for that value then it is safe to update. Hence why the
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// following checks are somewhat convoluted. The possible values for the
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// variable set by each check is as follows:
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//
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// | Match | No Match | Error |
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// variable | true | false | null |
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let cpuVendorIDMatch = false;
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try {
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let cpuVendorID = wrk.readStringValue("VendorIdentifier");
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if (cpuVendorID.toLowerCase() == "genuineintel") {
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cpuVendorIDMatch = true;
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}
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} catch (e) {
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Cu.reportError("AUSHelper - error getting CPU vendor indentifier. Exception: " + e);
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cpuVendorIDMatch = null;
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cpuErrorCode |= CPU_VENDOR_ID_ERROR;
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}
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let cpuIDMatch = false;
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try {
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let cpuID = wrk.readStringValue("Identifier");
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if (cpuID.toLowerCase().includes("family 6 model 61 stepping 4")) {
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cpuIDMatch = true;
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}
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} catch (e) {
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Cu.reportError("AUSHelper - error getting CPU indentifier. Exception: " + e);
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cpuIDMatch = null;
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cpuErrorCode |= CPU_ID_ERROR;
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}
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let microCodeVersions = [0xe, 0x11, 0x12, 0x13, 0x16, 0x18, 0x19];
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let cpuRevMatch = null;
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try {
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let keyNames = ["Update Revision", "Update Signature"];
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for (let i = 0; i < keyNames.length; ++i) {
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try {
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let regVal = wrk.readBinaryValue(keyNames[i]);
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if (regVal.length == 8) {
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let hexVal = [];
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// We are only inyterested in the upper 4 bytes and the little endian
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// value for it.
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for (let j = 4; j < 8; j++) {
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let c = regVal.charCodeAt(j).toString(16);
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if (c.length == 1) {
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c = "0" + c;
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}
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hexVal.unshift(c);
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}
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cpuRevMatch = false;
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if (microCodeVersions.includes(parseInt(hexVal.join("")))) {
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cpuRevMatch = true;
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}
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break;
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}
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} catch (e) {
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if (i == keyNames.length - 1) {
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// The registry key name's value was not successfully queried.
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cpuRevMatch = null;
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cpuErrorCode |= CPU_REV_ERROR;
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}
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}
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}
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wrk.close();
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} catch (ex) {
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Cu.reportError("AUSHelper - error getting CPU revision. Exception: " + ex);
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cpuRevMatch = null;
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cpuErrorCode |= CPU_REV_ERROR;
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}
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let cpuResult = CPU_UNKNOWN_BUG1296630;
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let cpuValue = "(unkBug1296630v1)";
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// The following uses strict equality checks since the values can be true,
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// false, or null.
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if (cpuVendorIDMatch === false || cpuIDMatch === false || cpuRevMatch === false) {
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// Since one of the values is false then the system won't be affected by
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// bug 1296630 according to the conditions set out in bug 1311515.
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cpuValue = "(noBug1296630v1)";
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cpuResult = CPU_NO_BUG1296630;
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} else if (cpuVendorIDMatch === null || cpuIDMatch === null || cpuRevMatch === null) {
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// Since one of the values is null we can't say for sure if the system will
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// be affected by bug 1296630.
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cpuValue = "(errBug1296630v1)";
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cpuResult = CPU_ERR_BUG1296630;
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} else if (cpuVendorIDMatch === true && cpuIDMatch === true && cpuRevMatch === true) {
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// Since all of the values are true we can say that the system will be
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// affected by bug 1296630.
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cpuValue = "(yesBug1296630v1)";
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cpuResult = CPU_YES_BUG1296630;
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}
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Services.telemetry.getHistogramById(AUSHELPER_CPU_RESULT_CODE_HISTOGRAM_ID).add(cpuResult);
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Services.telemetry.getHistogramById(AUSHELPER_CPU_ERROR_CODE_HISTOGRAM_ID).add(cpuErrorCode);
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const regWebsensePath = "Websense\\Agent";
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let websenseErrorCode = WEBSENSE_SUCCESS;
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let websenseVersion = "";
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try {
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let regModes = [wrk.ACCESS_READ, wrk.ACCESS_READ | wrk.WOW64_64];
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for (let i = 0; i < regModes.length; ++i) {
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wrk.open(wrk.ROOT_KEY_LOCAL_MACHINE, "SOFTWARE", regModes[i]);
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try {
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if (wrk.hasChild(regWebsensePath)) {
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let childKey = wrk.openChild(regWebsensePath, wrk.ACCESS_READ);
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websenseVersion = childKey.readStringValue("InstallVersion");
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Services.telemetry.scalarSet(AUSHELPER_WEBSENSE_REG_VERSION_SCALAR_NAME, websenseVersion);
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}
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wrk.close();
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} catch (e) {
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Cu.reportError("AUSHelper - unable to read registry. Exception: " + e);
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websenseErrorCode |= WEBSENSE_REG_READ_ERROR;
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}
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}
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} catch (ex) {
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Cu.reportError("AUSHelper - unable to open registry. Exception: " + ex);
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websenseErrorCode |= WEBSENSE_REG_OPEN_ERROR;
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}
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Services.telemetry.getHistogramById(AUSHELPER_WEBSENSE_REG_EXISTS_HISTOGRAM_ID).add(!!websenseVersion);
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let websenseValue = "(" + (websenseVersion ? "websense-" + websenseVersion : "nowebsense") + ")";
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let branch = Services.prefs.getDefaultBranch("");
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let curValue = branch.getCharPref(APP_UPDATE_URL_PREF);
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if (curValue.indexOf(REPLACE_KEY + "/") > -1) {
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let newValue = curValue.replace(REPLACE_KEY + "/", REPLACE_KEY + cpuValue + websenseValue + "/");
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branch.setCharPref(APP_UPDATE_URL_PREF, newValue);
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} else {
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websenseErrorCode |= WEBSENSE_ALREADY_MODIFIED;
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}
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Services.telemetry.getHistogramById(AUSHELPER_WEBSENSE_ERROR_CODE_HISTOGRAM_ID).add(websenseErrorCode);
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}
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function shutdown() {}
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function install() {}
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function uninstall() {}
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