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Bug 790849 - Don't store information in /data about built-in apps before first startup - Move settings db out of prebuild files. [r=gwagner]

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This commit is contained in:
Fabrice Desré 2012-10-06 22:15:25 -07:00
parent 17cd21e011
commit 7c7a5b6555
1 changed files with 53 additions and 9 deletions
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62
dom/settings/SettingsDB.jsm
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@ -2,21 +2,23 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
let Cc = Components.classes;
let Ci = Components.interfaces;
let Cu = Components.utils;
let EXPORTED_SYMBOLS = ["SettingsDB", "SETTINGSDB_NAME", "SETTINGSSTORE_NAME"];
/* static functions */
let DEBUG = 0;
if (DEBUG) {
debug = function (s) { dump("-*- SettingsDB: " + s + "\n"); }
} else {
debug = function (s) {}
function debug(s) {
//dump("-*- SettingsDB: " + s + "\n");
}
const SETTINGSDB_NAME = "settings";
const SETTINGSDB_VERSION = 1;
const SETTINGSSTORE_NAME = "settings";
Components.utils.import("resource://gre/modules/IndexedDBHelper.jsm");
Cu.import("resource://gre/modules/IndexedDBHelper.jsm");
Cu.import("resource://gre/modules/FileUtils.jsm");
Cu.import("resource://gre/modules/NetUtil.jsm");
function SettingsDB() {}
@ -25,12 +27,54 @@ SettingsDB.prototype = {
__proto__: IndexedDBHelper.prototype,
upgradeSchema: function upgradeSchema(aTransaction, aDb, aOldVersion, aNewVersion) {
let objectStore = aDb.createObjectStore(SETTINGSSTORE_NAME, { keyPath: "settingName" });
let objectStore = aDb.createObjectStore(SETTINGSSTORE_NAME,
{ keyPath: "settingName" });
objectStore.createIndex("settingValue", "settingValue", { unique: false });
debug("Created object stores and indexes");
if (aOldVersion != 0) {
return;
}
// Loading resource://app/defaults/settings.json doesn't work because
// settings.json is not in the omnijar.
// So we look for the app dir instead and go from here...
let settingsFile = FileUtils.getFile("DefRt", ["settings.json"], false);
if (!settingsFile || (settingsFile && !settingsFile.exists())) {
// On b2g desktop builds the settings.json file is moved in the
// profile directory by the build system.
settingsFile = FileUtils.getFile("ProfD", ["settings.json"], false);
if (!settingsFile || (settingsFile && !settingsFile.exists())) {
return;
}
}
let chan = NetUtil.newChannel(settingsFile);
let stream = chan.open();
// Obtain a converter to read from a UTF-8 encoded input stream.
let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
.createInstance(Ci.nsIScriptableUnicodeConverter);
converter.charset = "UTF-8";
let rawstr = converter.ConvertToUnicode(NetUtil.readInputStreamToString(
stream,
stream.available()) || "");
let settings;
try {
settings = JSON.parse(rawstr);
} catch(e) {
debug("Error parsing " + settingsFile.path + " : " + e);
return;
}
for (let setting in settings) {
debug("Adding setting " + setting);
objectStore.put({ settingName: setting,
settingValue: settings[setting] });
}
},
init: function init(aGlobal) {
this.initDBHelper(SETTINGSDB_NAME, SETTINGSDB_VERSION, SETTINGSSTORE_NAME, aGlobal);
this.initDBHelper(SETTINGSDB_NAME, SETTINGSDB_VERSION,
SETTINGSSTORE_NAME, aGlobal);
}
}