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fix for regression bug #383518: Non-Vista Windows users are prompted for updates they cannot apply.

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For Non-Vista Windows, we need to check if we can write to the application directory (where firefox.exe lives, for example) to decide if we "can update".  On Vista, the updater will elevate to gain permissions to that directory, so we don't want do to do this additional check.

r=rstrong
This commit is contained in:
sspitzer@mozilla.org 2007-07-11 18:08:42 -07:00
parent b3092a053d
commit 757701a76d
1 changed files with 45 additions and 4 deletions
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49
toolkit/mozapps/update/src/nsUpdateService.js.in
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@ -268,7 +268,7 @@ function getFile(key, pathArray) {
}
/**
* Gets the file at the speciifed hierarchy under the update root directory.
* Gets the file at the specified hierarchy under the update root directory.
* @param pathArray
* An array of path components to locate beneath the directory
* specified by |key|. The last item in this array must be the
@ -1474,6 +1474,7 @@ UpdateService.prototype = {
get canUpdate() {
try {
var appDirFile = getUpdateFile([FILE_PERMS_TEST]);
LOG("UpdateService", "canUpdate? testing " + appDirFile.path);
if (!appDirFile.exists()) {
appDirFile.create(nsILocalFile.NORMAL_FILE_TYPE, PERMS_FILE);
appDirFile.remove(false);
@ -1481,12 +1482,45 @@ UpdateService.prototype = {
var updateDir = getUpdatesDir();
var upDirFile = updateDir.clone();
upDirFile.append(FILE_PERMS_TEST);
LOG("UpdateService", "canUpdate? testing " + upDirFile.path);
if (!upDirFile.exists()) {
upDirFile.create(nsILocalFile.NORMAL_FILE_TYPE, PERMS_FILE);
upDirFile.remove(false);
}
#ifdef XP_WIN
var sysInfo =
Components.classes["@mozilla.org/system-info;1"]
.getService(Components.interfaces.nsIPropertyBag2);
// On Windows, we no longer store the update under the app dir
// if the app dir is under C:\Program Files.
//
// If we are on Windows, but not Vista, we need to check that
// we can create and remove files from the actual app directory
// (like C:\Program Files\Mozilla Firefox). If we can't,
// because this user is not an adminstrator, for example
// canUpdate() should return false (like it used to).
//
// For Vista, don't perform this check because non-admin users
// can update firefox (by granting the updater access via the
// UAC prompt)
var windowsVersion = sysInfo.getProperty("version");
LOG("UpdateService", "canUpdate? version = " + windowsVersion);
// Example windowsVersion: Windows XP == 5.1
if (parseFloat(windowsVersion) < 6) {
var actualAppDir = getDir(KEY_APPDIR, []);
var actualAppDirFile = actualAppDir.clone();
actualAppDirFile.append(FILE_PERMS_TEST);
LOG("UpdateService", "canUpdate? testing " + actualAppDirFile.path);
if (!actualAppDirFile.exists()) {
actualAppDirFile.create(nsILocalFile.NORMAL_FILE_TYPE, PERMS_FILE);
actualAppDirFile.remove(false);
}
}
#endif
}
catch (e) {
LOG("UpdateService", "can't update, no privileges: " + e);
// No write privileges to install directory
return false;
}
@ -1494,17 +1528,24 @@ UpdateService.prototype = {
// OFF - this is not just a user setting, so disable the manual
// UI too.
var enabled = getPref("getBoolPref", PREF_APP_UPDATE_ENABLED, true);
if (!enabled && gPref.prefIsLocked(PREF_APP_UPDATE_ENABLED))
if (!enabled && gPref.prefIsLocked(PREF_APP_UPDATE_ENABLED)) {
LOG("UpdateService", "can't update, disabled by pref");
return false;
}
// If we don't know the binary platform we're updating, we can't update.
if (!gABI)
if (!gABI) {
LOG("UpdateService", "can't update, unknown ABI");
return false;
}
// If we don't know the OS version we're updating, we can't update.
if (!gOSVersion)
if (!gOSVersion) {
LOG("UpdateService", "can't update, unknown OS version");
return false;
}
LOG("UpdateService", "can update");
return true;
},