mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
893 lines
29 KiB
JavaScript
893 lines
29 KiB
JavaScript
/* 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 Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cr = Components.results;
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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Components.utils.import("resource://gre/modules/Services.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Deprecated",
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"resource://gre/modules/Deprecated.jsm");
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const DB_VERSION = 4;
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const DAY_IN_MS = 86400000; // 1 day in milliseconds
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function FormHistory() {
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Deprecated.warning(
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"nsIFormHistory2 is deprecated and will be removed in a future version",
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"https://bugzilla.mozilla.org/show_bug.cgi?id=879118");
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this.init();
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}
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FormHistory.prototype = {
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classID : Components.ID("{0c1bb408-71a2-403f-854a-3a0659829ded}"),
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QueryInterface : XPCOMUtils.generateQI([Ci.nsIFormHistory2,
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Ci.nsIObserver,
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Ci.nsIMessageListener,
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Ci.nsISupportsWeakReference,
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]),
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debug : true,
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enabled : true,
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// The current database schema.
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dbSchema : {
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tables : {
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moz_formhistory: {
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"id" : "INTEGER PRIMARY KEY",
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"fieldname" : "TEXT NOT NULL",
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"value" : "TEXT NOT NULL",
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"timesUsed" : "INTEGER",
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"firstUsed" : "INTEGER",
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"lastUsed" : "INTEGER",
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"guid" : "TEXT"
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},
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moz_deleted_formhistory: {
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"id" : "INTEGER PRIMARY KEY",
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"timeDeleted" : "INTEGER",
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"guid" : "TEXT"
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}
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},
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indices : {
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moz_formhistory_index : {
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table : "moz_formhistory",
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columns : ["fieldname"]
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},
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moz_formhistory_lastused_index : {
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table : "moz_formhistory",
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columns : ["lastUsed"]
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},
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moz_formhistory_guid_index : {
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table : "moz_formhistory",
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columns : ["guid"]
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},
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}
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},
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dbStmts : null, // Database statements for memoization
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dbFile : null,
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_uuidService: null,
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get uuidService() {
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if (!this._uuidService)
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this._uuidService = Cc["@mozilla.org/uuid-generator;1"].
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getService(Ci.nsIUUIDGenerator);
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return this._uuidService;
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},
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log : function log(message) {
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if (!this.debug)
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return;
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dump("FormHistory: " + message + "\n");
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Services.console.logStringMessage("FormHistory: " + message);
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},
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init : function init() {
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this.updatePrefs();
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this.dbStmts = {};
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// Add observer
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Services.obs.addObserver(this, "profile-before-change", true);
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},
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/* ---- nsIFormHistory2 interfaces ---- */
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get hasEntries() {
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return (this.countAllEntries() > 0);
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},
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addEntry : function addEntry(name, value) {
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if (!this.enabled)
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return;
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this.log("addEntry for " + name + "=" + value);
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let now = Date.now() * 1000; // microseconds
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let [id, guid] = this.getExistingEntryID(name, value);
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let stmt;
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if (id != -1) {
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// Update existing entry.
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let query = "UPDATE moz_formhistory SET timesUsed = timesUsed + 1, lastUsed = :lastUsed WHERE id = :id";
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let params = {
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lastUsed : now,
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id : id
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};
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try {
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stmt = this.dbCreateStatement(query, params);
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stmt.execute();
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this.sendStringNotification("modifyEntry", name, value, guid);
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} catch (e) {
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this.log("addEntry (modify) failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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} else {
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// Add new entry.
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guid = this.generateGUID();
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let query = "INSERT INTO moz_formhistory (fieldname, value, timesUsed, firstUsed, lastUsed, guid) " +
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"VALUES (:fieldname, :value, :timesUsed, :firstUsed, :lastUsed, :guid)";
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let params = {
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fieldname : name,
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value : value,
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timesUsed : 1,
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firstUsed : now,
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lastUsed : now,
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guid : guid
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};
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try {
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stmt = this.dbCreateStatement(query, params);
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stmt.execute();
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this.sendStringNotification("addEntry", name, value, guid);
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} catch (e) {
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this.log("addEntry (create) failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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}
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},
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removeEntry : function removeEntry(name, value) {
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this.log("removeEntry for " + name + "=" + value);
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let [id, guid] = this.getExistingEntryID(name, value);
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this.sendStringNotification("before-removeEntry", name, value, guid);
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let stmt;
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let query = "DELETE FROM moz_formhistory WHERE id = :id";
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let params = { id : id };
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let existingTransactionInProgress;
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try {
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// Don't start a transaction if one is already in progress since we can't nest them.
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existingTransactionInProgress = this.dbConnection.transactionInProgress;
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if (!existingTransactionInProgress)
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this.dbConnection.beginTransaction();
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this.moveToDeletedTable("VALUES (:guid, :timeDeleted)", {
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guid: guid,
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timeDeleted: Date.now()
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});
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// remove from the formhistory database
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stmt = this.dbCreateStatement(query, params);
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stmt.execute();
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this.sendStringNotification("removeEntry", name, value, guid);
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} catch (e) {
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if (!existingTransactionInProgress)
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this.dbConnection.rollbackTransaction();
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this.log("removeEntry failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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if (!existingTransactionInProgress)
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this.dbConnection.commitTransaction();
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},
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removeEntriesForName : function removeEntriesForName(name) {
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this.log("removeEntriesForName with name=" + name);
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this.sendStringNotification("before-removeEntriesForName", name);
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let stmt;
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let query = "DELETE FROM moz_formhistory WHERE fieldname = :fieldname";
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let params = { fieldname : name };
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let existingTransactionInProgress;
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try {
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// Don't start a transaction if one is already in progress since we can't nest them.
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existingTransactionInProgress = this.dbConnection.transactionInProgress;
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if (!existingTransactionInProgress)
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this.dbConnection.beginTransaction();
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this.moveToDeletedTable(
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"SELECT guid, :timeDeleted FROM moz_formhistory " +
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"WHERE fieldname = :fieldname", {
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fieldname: name,
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timeDeleted: Date.now()
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});
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stmt = this.dbCreateStatement(query, params);
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stmt.execute();
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this.sendStringNotification("removeEntriesForName", name);
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} catch (e) {
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if (!existingTransactionInProgress)
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this.dbConnection.rollbackTransaction();
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this.log("removeEntriesForName failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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if (!existingTransactionInProgress)
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this.dbConnection.commitTransaction();
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},
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removeAllEntries : function removeAllEntries() {
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this.log("removeAllEntries");
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this.sendNotification("before-removeAllEntries", null);
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let stmt;
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let query = "DELETE FROM moz_formhistory";
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let existingTransactionInProgress;
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try {
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// Don't start a transaction if one is already in progress since we can't nest them.
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existingTransactionInProgress = this.dbConnection.transactionInProgress;
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if (!existingTransactionInProgress)
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this.dbConnection.beginTransaction();
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// TODO: Add these items to the deleted items table once we've sorted
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// out the issues from bug 756701
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stmt = this.dbCreateStatement(query);
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stmt.execute();
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this.sendNotification("removeAllEntries", null);
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} catch (e) {
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if (!existingTransactionInProgress)
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this.dbConnection.rollbackTransaction();
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this.log("removeAllEntries failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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if (!existingTransactionInProgress)
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this.dbConnection.commitTransaction();
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},
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nameExists : function nameExists(name) {
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this.log("nameExists for name=" + name);
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let stmt;
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let query = "SELECT COUNT(1) AS numEntries FROM moz_formhistory WHERE fieldname = :fieldname";
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let params = { fieldname : name };
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try {
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stmt = this.dbCreateStatement(query, params);
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stmt.executeStep();
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return (stmt.row.numEntries > 0);
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} catch (e) {
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this.log("nameExists failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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},
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entryExists : function entryExists(name, value) {
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this.log("entryExists for " + name + "=" + value);
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let [id, guid] = this.getExistingEntryID(name, value);
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this.log("entryExists: id=" + id);
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return (id != -1);
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},
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removeEntriesByTimeframe : function removeEntriesByTimeframe(beginTime, endTime) {
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this.log("removeEntriesByTimeframe for " + beginTime + " to " + endTime);
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this.sendIntNotification("before-removeEntriesByTimeframe", beginTime, endTime);
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let stmt;
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let query = "DELETE FROM moz_formhistory WHERE firstUsed >= :beginTime AND firstUsed <= :endTime";
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let params = {
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beginTime : beginTime,
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endTime : endTime
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};
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let existingTransactionInProgress;
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try {
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// Don't start a transaction if one is already in progress since we can't nest them.
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existingTransactionInProgress = this.dbConnection.transactionInProgress;
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if (!existingTransactionInProgress)
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this.dbConnection.beginTransaction();
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this.moveToDeletedTable(
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"SELECT guid, :timeDeleted FROM moz_formhistory " +
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"WHERE firstUsed >= :beginTime AND firstUsed <= :endTime", {
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beginTime: beginTime,
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endTime: endTime
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});
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stmt = this.dbCreateStatement(query, params);
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stmt.executeStep();
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this.sendIntNotification("removeEntriesByTimeframe", beginTime, endTime);
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} catch (e) {
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if (!existingTransactionInProgress)
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this.dbConnection.rollbackTransaction();
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this.log("removeEntriesByTimeframe failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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if (!existingTransactionInProgress)
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this.dbConnection.commitTransaction();
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},
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moveToDeletedTable : function moveToDeletedTable(values, params) {
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#ifdef ANDROID
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this.log("Moving entries to deleted table.");
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let stmt;
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try {
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// Move the entries to the deleted items table.
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let query = "INSERT INTO moz_deleted_formhistory (guid, timeDeleted) ";
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if (values) query += values;
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stmt = this.dbCreateStatement(query, params);
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stmt.execute();
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} catch (e) {
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this.log("Moving deleted entries failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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#endif
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},
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get dbConnection() {
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// Make sure dbConnection can't be called from now to prevent infinite loops.
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delete FormHistory.prototype.dbConnection;
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try {
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this.dbFile = Services.dirsvc.get("ProfD", Ci.nsIFile).clone();
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this.dbFile.append("formhistory.sqlite");
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this.log("Opening database at " + this.dbFile.path);
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FormHistory.prototype.dbConnection = this.dbOpen();
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this.dbInit();
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} catch (e) {
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this.log("Initialization failed: " + e);
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// If dbInit fails...
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if (e.result == Cr.NS_ERROR_FILE_CORRUPTED) {
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this.dbCleanup();
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FormHistory.prototype.dbConnection = this.dbOpen();
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this.dbInit();
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} else {
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throw "Initialization failed";
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}
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}
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return FormHistory.prototype.dbConnection;
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},
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get DBConnection() {
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return this.dbConnection;
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},
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/* ---- nsIObserver interface ---- */
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observe : function observe(subject, topic, data) {
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switch(topic) {
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case "nsPref:changed":
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this.updatePrefs();
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break;
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case "profile-before-change":
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this._dbClose(false);
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break;
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default:
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this.log("Oops! Unexpected notification: " + topic);
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break;
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}
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},
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/* ---- helpers ---- */
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generateGUID : function() {
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// string like: "{f60d9eac-9421-4abc-8491-8e8322b063d4}"
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let uuid = this.uuidService.generateUUID().toString();
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let raw = ""; // A string with the low bytes set to random values
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let bytes = 0;
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for (let i = 1; bytes < 12 ; i+= 2) {
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// Skip dashes
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if (uuid[i] == "-")
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i++;
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let hexVal = parseInt(uuid[i] + uuid[i + 1], 16);
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raw += String.fromCharCode(hexVal);
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bytes++;
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}
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return btoa(raw);
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},
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sendStringNotification : function (changeType, str1, str2, str3) {
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function wrapit(str) {
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let wrapper = Cc["@mozilla.org/supports-string;1"].
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createInstance(Ci.nsISupportsString);
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wrapper.data = str;
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return wrapper;
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}
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let strData;
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if (arguments.length == 2) {
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// Just 1 string, no need to put it in an array
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strData = wrapit(str1);
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} else {
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// 3 strings, put them in an array.
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strData = Cc["@mozilla.org/array;1"].
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createInstance(Ci.nsIMutableArray);
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strData.appendElement(wrapit(str1), false);
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strData.appendElement(wrapit(str2), false);
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strData.appendElement(wrapit(str3), false);
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}
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this.sendNotification(changeType, strData);
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},
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sendIntNotification : function (changeType, int1, int2) {
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function wrapit(int) {
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let wrapper = Cc["@mozilla.org/supports-PRInt64;1"].
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createInstance(Ci.nsISupportsPRInt64);
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wrapper.data = int;
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return wrapper;
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}
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let intData;
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if (arguments.length == 2) {
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// Just 1 int, no need for an array
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intData = wrapit(int1);
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} else {
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// 2 ints, put them in an array.
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intData = Cc["@mozilla.org/array;1"].
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createInstance(Ci.nsIMutableArray);
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intData.appendElement(wrapit(int1), false);
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intData.appendElement(wrapit(int2), false);
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}
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this.sendNotification(changeType, intData);
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},
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sendNotification : function (changeType, data) {
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Services.obs.notifyObservers(data, "satchel-storage-changed", changeType);
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},
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getExistingEntryID : function (name, value) {
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let id = -1, guid = null;
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let stmt;
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let query = "SELECT id, guid FROM moz_formhistory WHERE fieldname = :fieldname AND value = :value";
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let params = {
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fieldname : name,
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value : value
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};
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try {
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stmt = this.dbCreateStatement(query, params);
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if (stmt.executeStep()) {
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id = stmt.row.id;
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guid = stmt.row.guid;
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}
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} catch (e) {
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this.log("getExistingEntryID failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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return [id, guid];
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},
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countAllEntries : function () {
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let query = "SELECT COUNT(1) AS numEntries FROM moz_formhistory";
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let stmt, numEntries;
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try {
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stmt = this.dbCreateStatement(query, null);
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stmt.executeStep();
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numEntries = stmt.row.numEntries;
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} catch (e) {
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this.log("countAllEntries failed: " + e);
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throw e;
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} finally {
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if (stmt) {
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stmt.reset();
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}
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}
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this.log("countAllEntries: counted entries: " + numEntries);
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return numEntries;
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},
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updatePrefs : function () {
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this.debug = Services.prefs.getBoolPref("browser.formfill.debug");
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this.enabled = Services.prefs.getBoolPref("browser.formfill.enable");
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},
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//**************************************************************************//
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// Database Creation & Access
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/*
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* dbCreateStatement
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*
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* Creates a statement, wraps it, and then does parameter replacement
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* Will use memoization so that statements can be reused.
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*/
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dbCreateStatement : function (query, params) {
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let stmt = this.dbStmts[query];
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// Memoize the statements
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if (!stmt) {
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this.log("Creating new statement for query: " + query);
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stmt = this.dbConnection.createStatement(query);
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this.dbStmts[query] = stmt;
|
|
}
|
|
// Replace parameters, must be done 1 at a time
|
|
if (params)
|
|
for (let i in params)
|
|
stmt.params[i] = params[i];
|
|
return stmt;
|
|
},
|
|
|
|
/*
|
|
* dbOpen
|
|
*
|
|
* Open a connection with the database and returns it.
|
|
*
|
|
* @returns a db connection object.
|
|
*/
|
|
dbOpen : function () {
|
|
this.log("Open Database");
|
|
|
|
let storage = Cc["@mozilla.org/storage/service;1"].
|
|
getService(Ci.mozIStorageService);
|
|
return storage.openDatabase(this.dbFile);
|
|
},
|
|
|
|
/*
|
|
* dbInit
|
|
*
|
|
* Attempts to initialize the database. This creates the file if it doesn't
|
|
* exist, performs any migrations, etc.
|
|
*/
|
|
dbInit : function () {
|
|
this.log("Initializing Database");
|
|
|
|
let version = this.dbConnection.schemaVersion;
|
|
|
|
// Note: Firefox 3 didn't set a schema value, so it started from 0.
|
|
// So we can't depend on a simple version == 0 check
|
|
if (version == 0 && !this.dbConnection.tableExists("moz_formhistory"))
|
|
this.dbCreate();
|
|
else if (version != DB_VERSION)
|
|
this.dbMigrate(version);
|
|
},
|
|
|
|
|
|
dbCreate: function () {
|
|
this.log("Creating DB -- tables");
|
|
for (let name in this.dbSchema.tables) {
|
|
let table = this.dbSchema.tables[name];
|
|
this.dbCreateTable(name, table);
|
|
}
|
|
|
|
this.log("Creating DB -- indices");
|
|
for (let name in this.dbSchema.indices) {
|
|
let index = this.dbSchema.indices[name];
|
|
let statement = "CREATE INDEX IF NOT EXISTS " + name + " ON " + index.table +
|
|
"(" + index.columns.join(", ") + ")";
|
|
this.dbConnection.executeSimpleSQL(statement);
|
|
}
|
|
|
|
this.dbConnection.schemaVersion = DB_VERSION;
|
|
},
|
|
|
|
dbCreateTable: function(name, table) {
|
|
let tSQL = [[col, table[col]].join(" ") for (col in table)].join(", ");
|
|
this.log("Creating table " + name + " with " + tSQL);
|
|
this.dbConnection.createTable(name, tSQL);
|
|
},
|
|
|
|
dbMigrate : function (oldVersion) {
|
|
this.log("Attempting to migrate from version " + oldVersion);
|
|
|
|
if (oldVersion > DB_VERSION) {
|
|
this.log("Downgrading to version " + DB_VERSION);
|
|
// User's DB is newer. Sanity check that our expected columns are
|
|
// present, and if so mark the lower version and merrily continue
|
|
// on. If the columns are borked, something is wrong so blow away
|
|
// the DB and start from scratch. [Future incompatible upgrades
|
|
// should swtich to a different table or file.]
|
|
|
|
if (!this.dbAreExpectedColumnsPresent())
|
|
throw Components.Exception("DB is missing expected columns",
|
|
Cr.NS_ERROR_FILE_CORRUPTED);
|
|
|
|
// Change the stored version to the current version. If the user
|
|
// runs the newer code again, it will see the lower version number
|
|
// and re-upgrade (to fixup any entries the old code added).
|
|
this.dbConnection.schemaVersion = DB_VERSION;
|
|
return;
|
|
}
|
|
|
|
// Upgrade to newer version...
|
|
|
|
this.dbConnection.beginTransaction();
|
|
|
|
try {
|
|
for (let v = oldVersion + 1; v <= DB_VERSION; v++) {
|
|
this.log("Upgrading to version " + v + "...");
|
|
let migrateFunction = "dbMigrateToVersion" + v;
|
|
this[migrateFunction]();
|
|
}
|
|
} catch (e) {
|
|
this.log("Migration failed: " + e);
|
|
this.dbConnection.rollbackTransaction();
|
|
throw e;
|
|
}
|
|
|
|
this.dbConnection.schemaVersion = DB_VERSION;
|
|
this.dbConnection.commitTransaction();
|
|
this.log("DB migration completed.");
|
|
},
|
|
|
|
|
|
/*
|
|
* dbMigrateToVersion1
|
|
*
|
|
* Updates the DB schema to v1 (bug 463154).
|
|
* Adds firstUsed, lastUsed, timesUsed columns.
|
|
*/
|
|
dbMigrateToVersion1 : function () {
|
|
// Check to see if the new columns already exist (could be a v1 DB that
|
|
// was downgraded to v0). If they exist, we don't need to add them.
|
|
let query;
|
|
["timesUsed", "firstUsed", "lastUsed"].forEach(function(column) {
|
|
if (!this.dbColumnExists(column)) {
|
|
query = "ALTER TABLE moz_formhistory ADD COLUMN " + column + " INTEGER";
|
|
this.dbConnection.executeSimpleSQL(query);
|
|
}
|
|
}, this);
|
|
|
|
// Set the default values for the new columns.
|
|
//
|
|
// Note that we set the timestamps to 24 hours in the past. We want a
|
|
// timestamp that's recent (so that "keep form history for 90 days"
|
|
// doesn't expire things surprisingly soon), but not so recent that
|
|
// "forget the last hour of stuff" deletes all freshly migrated data.
|
|
let stmt;
|
|
query = "UPDATE moz_formhistory " +
|
|
"SET timesUsed = 1, firstUsed = :time, lastUsed = :time " +
|
|
"WHERE timesUsed isnull OR firstUsed isnull or lastUsed isnull";
|
|
let params = { time: (Date.now() - DAY_IN_MS) * 1000 }
|
|
try {
|
|
stmt = this.dbCreateStatement(query, params);
|
|
stmt.execute();
|
|
} catch (e) {
|
|
this.log("Failed setting timestamps: " + e);
|
|
throw e;
|
|
} finally {
|
|
if (stmt) {
|
|
stmt.reset();
|
|
}
|
|
}
|
|
},
|
|
|
|
|
|
/*
|
|
* dbMigrateToVersion2
|
|
*
|
|
* Updates the DB schema to v2 (bug 243136).
|
|
* Adds lastUsed index, removes moz_dummy_table
|
|
*/
|
|
dbMigrateToVersion2 : function () {
|
|
let query = "DROP TABLE IF EXISTS moz_dummy_table";
|
|
this.dbConnection.executeSimpleSQL(query);
|
|
|
|
query = "CREATE INDEX IF NOT EXISTS moz_formhistory_lastused_index ON moz_formhistory (lastUsed)";
|
|
this.dbConnection.executeSimpleSQL(query);
|
|
},
|
|
|
|
|
|
/*
|
|
* dbMigrateToVersion3
|
|
*
|
|
* Updates the DB schema to v3 (bug 506402).
|
|
* Adds guid column and index.
|
|
*/
|
|
dbMigrateToVersion3 : function () {
|
|
// Check to see if GUID column already exists, add if needed
|
|
let query;
|
|
if (!this.dbColumnExists("guid")) {
|
|
query = "ALTER TABLE moz_formhistory ADD COLUMN guid TEXT";
|
|
this.dbConnection.executeSimpleSQL(query);
|
|
|
|
query = "CREATE INDEX IF NOT EXISTS moz_formhistory_guid_index ON moz_formhistory (guid)";
|
|
this.dbConnection.executeSimpleSQL(query);
|
|
}
|
|
|
|
// Get a list of IDs for existing logins
|
|
let ids = [];
|
|
query = "SELECT id FROM moz_formhistory WHERE guid isnull";
|
|
let stmt;
|
|
try {
|
|
stmt = this.dbCreateStatement(query);
|
|
while (stmt.executeStep())
|
|
ids.push(stmt.row.id);
|
|
} catch (e) {
|
|
this.log("Failed getting IDs: " + e);
|
|
throw e;
|
|
} finally {
|
|
if (stmt) {
|
|
stmt.reset();
|
|
}
|
|
}
|
|
|
|
// Generate a GUID for each login and update the DB.
|
|
query = "UPDATE moz_formhistory SET guid = :guid WHERE id = :id";
|
|
for each (let id in ids) {
|
|
let params = {
|
|
id : id,
|
|
guid : this.generateGUID()
|
|
};
|
|
|
|
try {
|
|
stmt = this.dbCreateStatement(query, params);
|
|
stmt.execute();
|
|
} catch (e) {
|
|
this.log("Failed setting GUID: " + e);
|
|
throw e;
|
|
} finally {
|
|
if (stmt) {
|
|
stmt.reset();
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
dbMigrateToVersion4 : function () {
|
|
if (!this.dbConnection.tableExists("moz_deleted_formhistory")) {
|
|
this.dbCreateTable("moz_deleted_formhistory", this.dbSchema.tables.moz_deleted_formhistory);
|
|
}
|
|
},
|
|
|
|
/*
|
|
* dbAreExpectedColumnsPresent
|
|
*
|
|
* Sanity check to ensure that the columns this version of the code expects
|
|
* are present in the DB we're using.
|
|
*/
|
|
dbAreExpectedColumnsPresent : function () {
|
|
for (let name in this.dbSchema.tables) {
|
|
let table = this.dbSchema.tables[name];
|
|
let query = "SELECT " +
|
|
[col for (col in table)].join(", ") +
|
|
" FROM " + name;
|
|
try {
|
|
let stmt = this.dbConnection.createStatement(query);
|
|
// (no need to execute statement, if it compiled we're good)
|
|
stmt.finalize();
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
this.log("verified that expected columns are present in DB.");
|
|
return true;
|
|
},
|
|
|
|
|
|
/*
|
|
* dbColumnExists
|
|
*
|
|
* Checks to see if the named column already exists.
|
|
*/
|
|
dbColumnExists : function (columnName) {
|
|
let query = "SELECT " + columnName + " FROM moz_formhistory";
|
|
try {
|
|
let stmt = this.dbConnection.createStatement(query);
|
|
// (no need to execute statement, if it compiled we're good)
|
|
stmt.finalize();
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* _dbClose
|
|
*
|
|
* Finalize all statements and close the connection.
|
|
*
|
|
* @param aBlocking - Should we spin the loop waiting for the db to be
|
|
* closed.
|
|
*/
|
|
_dbClose : function FH__dbClose(aBlocking) {
|
|
for each (let stmt in this.dbStmts) {
|
|
stmt.finalize();
|
|
}
|
|
this.dbStmts = {};
|
|
|
|
let connectionDescriptor = Object.getOwnPropertyDescriptor(FormHistory.prototype, "dbConnection");
|
|
// Return if the database hasn't been opened.
|
|
if (!connectionDescriptor || connectionDescriptor.value === undefined)
|
|
return;
|
|
|
|
let completed = false;
|
|
try {
|
|
this.dbConnection.asyncClose(function () { completed = true; });
|
|
} catch (e) {
|
|
completed = true;
|
|
Components.utils.reportError(e);
|
|
}
|
|
|
|
let thread = Services.tm.currentThread;
|
|
while (aBlocking && !completed) {
|
|
thread.processNextEvent(true);
|
|
}
|
|
},
|
|
|
|
/*
|
|
* dbCleanup
|
|
*
|
|
* Called when database creation fails. Finalizes database statements,
|
|
* closes the database connection, deletes the database file.
|
|
*/
|
|
dbCleanup : function () {
|
|
this.log("Cleaning up DB file - close & remove & backup")
|
|
|
|
// Create backup file
|
|
let storage = Cc["@mozilla.org/storage/service;1"].
|
|
getService(Ci.mozIStorageService);
|
|
let backupFile = this.dbFile.leafName + ".corrupt";
|
|
storage.backupDatabaseFile(this.dbFile, backupFile);
|
|
|
|
this._dbClose(true);
|
|
this.dbFile.remove(false);
|
|
}
|
|
};
|
|
|
|
let component = [FormHistory];
|
|
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(component);
|