Move WebExtensions enabled Add-ons Manager

1 files changed, 0 insertions, 1988 deletions

diff --git a/toolkit/mozapps/extensions/internal/AddonRepository.jsm b/toolkit/mozapps/extensions/internal/AddonRepository.jsm
deleted file mode 100644
index 7f88d44ad..000000000
--- a/toolkit/mozapps/extensions/internal/AddonRepository.jsm
+++ /dev/null
@@ -1,1988 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * 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/. */
-
-"use strict";
-
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-const Cu = Components.utils;
-const Cr = Components.results;
-
-Components.utils.import("resource://gre/modules/Services.jsm");
-Components.utils.import("resource://gre/modules/AddonManager.jsm");
-/* globals AddonManagerPrivate*/
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
-
-XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
-                                  "resource://gre/modules/NetUtil.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "OS",
-                                  "resource://gre/modules/osfile.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "DeferredSave",
-                                  "resource://gre/modules/DeferredSave.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository_SQLiteMigrator",
-                                  "resource://gre/modules/addons/AddonRepository_SQLiteMigrator.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Promise",
-                                  "resource://gre/modules/Promise.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "ServiceRequest",
-                                  "resource://gre/modules/ServiceRequest.jsm");
-XPCOMUtils.defineLazyModuleGetter(this, "Task",
-                                  "resource://gre/modules/Task.jsm");
-
-
-this.EXPORTED_SYMBOLS = [ "AddonRepository" ];
-
-const PREF_GETADDONS_CACHE_ENABLED       = "extensions.getAddons.cache.enabled";
-const PREF_GETADDONS_CACHE_TYPES         = "extensions.getAddons.cache.types";
-const PREF_GETADDONS_CACHE_ID_ENABLED    = "extensions.%ID%.getAddons.cache.enabled"
-const PREF_GETADDONS_BROWSEADDONS        = "extensions.getAddons.browseAddons";
-const PREF_GETADDONS_BYIDS               = "extensions.getAddons.get.url";
-const PREF_GETADDONS_BYIDS_PERFORMANCE   = "extensions.getAddons.getWithPerformance.url";
-const PREF_GETADDONS_BROWSERECOMMENDED   = "extensions.getAddons.recommended.browseURL";
-const PREF_GETADDONS_GETRECOMMENDED      = "extensions.getAddons.recommended.url";
-const PREF_GETADDONS_BROWSESEARCHRESULTS = "extensions.getAddons.search.browseURL";
-const PREF_GETADDONS_GETSEARCHRESULTS    = "extensions.getAddons.search.url";
-const PREF_GETADDONS_DB_SCHEMA           = "extensions.getAddons.databaseSchema"
-
-const PREF_METADATA_LASTUPDATE           = "extensions.getAddons.cache.lastUpdate";
-const PREF_METADATA_UPDATETHRESHOLD_SEC  = "extensions.getAddons.cache.updateThreshold";
-const DEFAULT_METADATA_UPDATETHRESHOLD_SEC = 172800;  // two days
-
-const XMLURI_PARSE_ERROR  = "http://www.mozilla.org/newlayout/xml/parsererror.xml";
-
-const API_VERSION = "1.5";
-const DEFAULT_CACHE_TYPES = "extension,theme,locale,dictionary";
-
-const KEY_PROFILEDIR        = "ProfD";
-const FILE_DATABASE         = "addons.json";
-const DB_SCHEMA             = 5;
-const DB_MIN_JSON_SCHEMA    = 5;
-const DB_BATCH_TIMEOUT_MS   = 50;
-
-const BLANK_DB = function() {
-  return {
-    addons: new Map(),
-    schema: DB_SCHEMA
-  };
-}
-
-const TOOLKIT_ID     = "toolkit@mozilla.org";
-
-Cu.import("resource://gre/modules/Log.jsm");
-const LOGGER_ID = "addons.repository";
-
-// Create a new logger for use by the Addons Repository
-// (Requires AddonManager.jsm)
-var logger = Log.repository.getLogger(LOGGER_ID);
-
-// A map between XML keys to AddonSearchResult keys for string values
-// that require no extra parsing from XML
-const STRING_KEY_MAP = {
-  name:               "name",
-  version:            "version",
-  homepage:           "homepageURL",
-  support:            "supportURL"
-};
-
-// A map between XML keys to AddonSearchResult keys for string values
-// that require parsing from HTML
-const HTML_KEY_MAP = {
-  summary:            "description",
-  description:        "fullDescription",
-  developer_comments: "developerComments",
-  eula:               "eula"
-};
-
-// A map between XML keys to AddonSearchResult keys for integer values
-// that require no extra parsing from XML
-const INTEGER_KEY_MAP = {
-  total_downloads:  "totalDownloads",
-  weekly_downloads: "weeklyDownloads",
-  daily_users:      "dailyUsers"
-};
-
-function convertHTMLToPlainText(html) {
-  if (!html)
-    return html;
-  var converter = Cc["@mozilla.org/widget/htmlformatconverter;1"].
-                  createInstance(Ci.nsIFormatConverter);
-
-  var input = Cc["@mozilla.org/supports-string;1"].
-              createInstance(Ci.nsISupportsString);
-  input.data = html.replace(/\n/g, "<br>");
-
-  var output = {};
-  converter.convert("text/html", input, input.data.length, "text/unicode",
-                    output, {});
-
-  if (output.value instanceof Ci.nsISupportsString)
-    return output.value.data.replace(/\r\n/g, "\n");
-  return html;
-}
-
-function getAddonsToCache(aIds, aCallback) {
-  try {
-    var types = Services.prefs.getCharPref(PREF_GETADDONS_CACHE_TYPES);
-  }
-  catch (e) { }
-  if (!types)
-    types = DEFAULT_CACHE_TYPES;
-
-  types = types.split(",");
-
-  AddonManager.getAddonsByIDs(aIds, function(aAddons) {
-    let enabledIds = [];
-    for (var i = 0; i < aIds.length; i++) {
-      var preference = PREF_GETADDONS_CACHE_ID_ENABLED.replace("%ID%", aIds[i]);
-      try {
-        if (!Services.prefs.getBoolPref(preference))
-          continue;
-      } catch (e) {
-        // If the preference doesn't exist caching is enabled by default
-      }
-
-      // The add-ons manager may not know about this ID yet if it is a pending
-      // install. In that case we'll just cache it regardless
-      if (aAddons[i] && (types.indexOf(aAddons[i].type) == -1))
-        continue;
-
-      enabledIds.push(aIds[i]);
-    }
-
-    aCallback(enabledIds);
-  });
-}
-
-function AddonSearchResult(aId) {
-  this.id = aId;
-  this.icons = {};
-  this._unsupportedProperties = {};
-}
-
-AddonSearchResult.prototype = {
-  /**
-   * The ID of the add-on
-   */
-  id: null,
-
-  /**
-   * The add-on type (e.g. "extension" or "theme")
-   */
-  type: null,
-
-  /**
-   * The name of the add-on
-   */
-  name: null,
-
-  /**
-   * The version of the add-on
-   */
-  version: null,
-
-  /**
-   * The creator of the add-on
-   */
-  creator: null,
-
-  /**
-   * The developers of the add-on
-   */
-  developers: null,
-
-  /**
-   * A short description of the add-on
-   */
-  description: null,
-
-  /**
-   * The full description of the add-on
-   */
-  fullDescription: null,
-
-  /**
-   * The developer comments for the add-on. This includes any information
-   * that may be helpful to end users that isn't necessarily applicable to
-   * the add-on description (e.g. known major bugs)
-   */
-  developerComments: null,
-
-  /**
-   * The end-user licensing agreement (EULA) of the add-on
-   */
-  eula: null,
-
-  /**
-   * The url of the add-on's icon
-   */
-  get iconURL() {
-    return this.icons && this.icons[32];
-  },
-
-   /**
-   * The URLs of the add-on's icons, as an object with icon size as key
-   */
-  icons: null,
-
-  /**
-   * An array of screenshot urls for the add-on
-   */
-  screenshots: null,
-
-  /**
-   * The homepage for the add-on
-   */
-  homepageURL: null,
-
-  /**
-   * The homepage for the add-on
-   */
-  learnmoreURL: null,
-
-  /**
-   * The support URL for the add-on
-   */
-  supportURL: null,
-
-  /**
-   * The contribution url of the add-on
-   */
-  contributionURL: null,
-
-  /**
-   * The suggested contribution amount
-   */
-  contributionAmount: null,
-
-  /**
-   * The URL to visit in order to purchase the add-on
-   */
-  purchaseURL: null,
-
-  /**
-   * The numerical cost of the add-on in some currency, for sorting purposes
-   * only
-   */
-  purchaseAmount: null,
-
-  /**
-   * The display cost of the add-on, for display purposes only
-   */
-  purchaseDisplayAmount: null,
-
-  /**
-   * The rating of the add-on, 0-5
-   */
-  averageRating: null,
-
-  /**
-   * The number of reviews for this add-on
-   */
-  reviewCount: null,
-
-  /**
-   * The URL to the list of reviews for this add-on
-   */
-  reviewURL: null,
-
-  /**
-   * The total number of times the add-on was downloaded
-   */
-  totalDownloads: null,
-
-  /**
-   * The number of times the add-on was downloaded the current week
-   */
-  weeklyDownloads: null,
-
-  /**
-   * The number of daily users for the add-on
-   */
-  dailyUsers: null,
-
-  /**
-   * AddonInstall object generated from the add-on XPI url
-   */
-  install: null,
-
-  /**
-   * nsIURI storing where this add-on was installed from
-   */
-  sourceURI: null,
-
-  /**
-   * The status of the add-on in the repository (e.g. 4 = "Public")
-   */
-  repositoryStatus: null,
-
-  /**
-   * The size of the add-on's files in bytes. For an add-on that have not yet
-   * been downloaded this may be an estimated value.
-   */
-  size: null,
-
-  /**
-   * The Date that the add-on was most recently updated
-   */
-  updateDate: null,
-
-  /**
-   * True or false depending on whether the add-on is compatible with the
-   * current version of the application
-   */
-  isCompatible: true,
-
-  /**
-   * True or false depending on whether the add-on is compatible with the
-   * current platform
-   */
-  isPlatformCompatible: true,
-
-  /**
-   * Array of AddonCompatibilityOverride objects, that describe overrides for
-   * compatibility with an application versions.
-   **/
-  compatibilityOverrides: null,
-
-  /**
-   * True if the add-on has a secure means of updating
-   */
-  providesUpdatesSecurely: true,
-
-  /**
-   * The current blocklist state of the add-on
-   */
-  blocklistState: Ci.nsIBlocklistService.STATE_NOT_BLOCKED,
-
-  /**
-   * True if this add-on cannot be used in the application based on version
-   * compatibility, dependencies and blocklisting
-   */
-  appDisabled: false,
-
-  /**
-   * True if the user wants this add-on to be disabled
-   */
-  userDisabled: false,
-
-  /**
-   * Indicates what scope the add-on is installed in, per profile, user,
-   * system or application
-   */
-  scope: AddonManager.SCOPE_PROFILE,
-
-  /**
-   * True if the add-on is currently functional
-   */
-  isActive: true,
-
-  /**
-   * A bitfield holding all of the current operations that are waiting to be
-   * performed for this add-on
-   */
-  pendingOperations: AddonManager.PENDING_NONE,
-
-  /**
-   * A bitfield holding all the the operations that can be performed on
-   * this add-on
-   */
-  permissions: 0,
-
-  /**
-   * Tests whether this add-on is known to be compatible with a
-   * particular application and platform version.
-   *
-   * @param  appVersion
-   *         An application version to test against
-   * @param  platformVersion
-   *         A platform version to test against
-   * @return Boolean representing if the add-on is compatible
-   */
-  isCompatibleWith: function(aAppVersion, aPlatformVersion) {
-    return true;
-  },
-
-  /**
-   * Starts an update check for this add-on. This will perform
-   * asynchronously and deliver results to the given listener.
-   *
-   * @param  aListener
-   *         An UpdateListener for the update process
-   * @param  aReason
-   *         A reason code for performing the update
-   * @param  aAppVersion
-   *         An application version to check for updates for
-   * @param  aPlatformVersion
-   *         A platform version to check for updates for
-   */
-  findUpdates: function(aListener, aReason, aAppVersion, aPlatformVersion) {
-    if ("onNoCompatibilityUpdateAvailable" in aListener)
-      aListener.onNoCompatibilityUpdateAvailable(this);
-    if ("onNoUpdateAvailable" in aListener)
-      aListener.onNoUpdateAvailable(this);
-    if ("onUpdateFinished" in aListener)
-      aListener.onUpdateFinished(this);
-  },
-
-  toJSON: function() {
-    let json = {};
-
-    for (let property of Object.keys(this)) {
-      let value = this[property];
-      if (property.startsWith("_") ||
-          typeof(value) === "function")
-        continue;
-
-      try {
-        switch (property) {
-          case "sourceURI":
-            json.sourceURI = value ? value.spec : "";
-            break;
-
-          case "updateDate":
-            json.updateDate = value ? value.getTime() : "";
-            break;
-
-          default:
-            json[property] = value;
-        }
-      } catch (ex) {
-        logger.warn("Error writing property value for " + property);
-      }
-    }
-
-    for (let property of Object.keys(this._unsupportedProperties)) {
-      let value = this._unsupportedProperties[property];
-      if (!property.startsWith("_"))
-        json[property] = value;
-    }
-
-    return json;
-  }
-}
-
-/**
- * The add-on repository is a source of add-ons that can be installed. It can
- * be searched in three ways. The first takes a list of IDs and returns a
- * list of the corresponding add-ons. The second returns a list of add-ons that
- * come highly recommended. This list should change frequently. The third is to
- * search for specific search terms entered by the user. Searches are
- * asynchronous and results should be passed to the provided callback object
- * when complete. The results passed to the callback should only include add-ons
- * that are compatible with the current application and are not already
- * installed.
- */
-this.AddonRepository = {
-  /**
-   * Whether caching is currently enabled
-   */
-  get cacheEnabled() {
-    let preference = PREF_GETADDONS_CACHE_ENABLED;
-    let enabled = false;
-    try {
-      enabled = Services.prefs.getBoolPref(preference);
-    } catch (e) {
-      logger.warn("cacheEnabled: Couldn't get pref: " + preference);
-    }
-
-    return enabled;
-  },
-
-  // A cache of the add-ons stored in the database
-  _addons: null,
-
-  // Whether a search is currently in progress
-  _searching: false,
-
-  // XHR associated with the current request
-  _request: null,
-
-  /*
-   * Addon search results callback object that contains two functions
-   *
-   * searchSucceeded - Called when a search has suceeded.
-   *
-   * @param  aAddons
-   *         An array of the add-on results. In the case of searching for
-   *         specific terms the ordering of results may be determined by
-   *         the search provider.
-   * @param  aAddonCount
-   *         The length of aAddons
-   * @param  aTotalResults
-   *         The total results actually available in the repository
-   *
-   *
-   * searchFailed - Called when an error occurred when performing a search.
-   */
-  _callback: null,
-
-  // Maximum number of results to return
-  _maxResults: null,
-
-  /**
-   * Shut down AddonRepository
-   * return: promise{integer} resolves with the result of flushing
-   *         the AddonRepository database
-   */
-  shutdown: function() {
-    this.cancelSearch();
-
-    this._addons = null;
-    return AddonDatabase.shutdown(false);
-  },
-
-  metadataAge: function() {
-    let now = Math.round(Date.now() / 1000);
-
-    let lastUpdate = 0;
-    try {
-      lastUpdate = Services.prefs.getIntPref(PREF_METADATA_LASTUPDATE);
-    } catch (e) {}
-
-    // Handle clock jumps
-    if (now < lastUpdate) {
-      return now;
-    }
-    return now - lastUpdate;
-  },
-
-  isMetadataStale: function() {
-    let threshold = DEFAULT_METADATA_UPDATETHRESHOLD_SEC;
-    try {
-      threshold = Services.prefs.getIntPref(PREF_METADATA_UPDATETHRESHOLD_SEC);
-    } catch (e) {}
-    return (this.metadataAge() > threshold);
-  },
-
-  /**
-   * Asynchronously get a cached add-on by id. The add-on (or null if the
-   * add-on is not found) is passed to the specified callback. If caching is
-   * disabled, null is passed to the specified callback.
-   *
-   * @param  aId
-   *         The id of the add-on to get
-   * @param  aCallback
-   *         The callback to pass the result back to
-   */
-  getCachedAddonByID: Task.async(function*(aId, aCallback) {
-    if (!aId || !this.cacheEnabled) {
-      aCallback(null);
-      return;
-    }
-
-    function getAddon(aAddons) {
-      aCallback(aAddons.get(aId) || null);
-    }
-
-    if (this._addons == null) {
-      AddonDatabase.retrieveStoredData().then(aAddons => {
-        this._addons = aAddons;
-        getAddon(aAddons);
-      });
-
-      return;
-    }
-
-    getAddon(this._addons);
-  }),
-
-  /**
-   * Asynchronously repopulate cache so it only contains the add-ons
-   * corresponding to the specified ids. If caching is disabled,
-   * the cache is completely removed.
-   *
-   * @param  aTimeout
-   *         (Optional) timeout in milliseconds to abandon the XHR request
-   *         if we have not received a response from the server.
-   * @return Promise{null}
-   *         Resolves when the metadata ping is complete
-   */
-  repopulateCache: function(aTimeout) {
-    return this._repopulateCacheInternal(false, aTimeout);
-  },
-
-  /*
-   * Clear and delete the AddonRepository database
-   * @return Promise{null} resolves when the database is deleted
-   */
-  _clearCache: function() {
-    this._addons = null;
-    return AddonDatabase.delete().then(() =>
-      new Promise((resolve, reject) =>
-        AddonManagerPrivate.updateAddonRepositoryData(resolve))
-    );
-  },
-
-  _repopulateCacheInternal: Task.async(function*(aSendPerformance, aTimeout) {
-    let allAddons = yield new Promise((resolve, reject) =>
-      AddonManager.getAllAddons(resolve));
-
-    // Filter the hotfix out of our list of add-ons
-    allAddons = allAddons.filter(a => a.id != AddonManager.hotfixID);
-
-    // Completely remove cache if caching is not enabled
-    if (!this.cacheEnabled) {
-      logger.debug("Clearing cache because it is disabled");
-      yield this._clearCache();
-      return;
-    }
-
-    let ids = allAddons.map(a => a.id);
-    logger.debug("Repopulate add-on cache with " + ids.toSource());
-
-    let addonsToCache = yield new Promise((resolve, reject) =>
-      getAddonsToCache(ids, resolve));
-
-    // Completely remove cache if there are no add-ons to cache
-    if (addonsToCache.length == 0) {
-      logger.debug("Clearing cache because 0 add-ons were requested");
-      yield this._clearCache();
-      return;
-    }
-
-    yield new Promise((resolve, reject) =>
-      this._beginGetAddons(addonsToCache, {
-        searchSucceeded: aAddons => {
-          this._addons = new Map();
-          for (let addon of aAddons) {
-            this._addons.set(addon.id, addon);
-          }
-          AddonDatabase.repopulate(aAddons, resolve);
-        },
-        searchFailed: () => {
-          logger.warn("Search failed when repopulating cache");
-          resolve();
-        }
-      }, aSendPerformance, aTimeout));
-
-    // Always call AddonManager updateAddonRepositoryData after we refill the cache
-    yield new Promise((resolve, reject) =>
-      AddonManagerPrivate.updateAddonRepositoryData(resolve));
-  }),
-
-  /**
-   * Asynchronously add add-ons to the cache corresponding to the specified
-   * ids. If caching is disabled, the cache is unchanged and the callback is
-   * immediately called if it is defined.
-   *
-   * @param  aIds
-   *         The array of add-on ids to add to the cache
-   * @param  aCallback
-   *         The optional callback to call once complete
-   */
-  cacheAddons: function(aIds, aCallback) {
-    logger.debug("cacheAddons: enabled " + this.cacheEnabled + " IDs " + aIds.toSource());
-    if (!this.cacheEnabled) {
-      if (aCallback)
-        aCallback();
-      return;
-    }
-
-    getAddonsToCache(aIds, aAddons => {
-      // If there are no add-ons to cache, act as if caching is disabled
-      if (aAddons.length == 0) {
-        if (aCallback)
-          aCallback();
-        return;
-      }
-
-      this.getAddonsByIDs(aAddons, {
-        searchSucceeded: aAddons => {
-          for (let addon of aAddons) {
-            this._addons.set(addon.id, addon);
-          }
-          AddonDatabase.insertAddons(aAddons, aCallback);
-        },
-        searchFailed: () => {
-          logger.warn("Search failed when adding add-ons to cache");
-          if (aCallback)
-            aCallback();
-        }
-      });
-    });
-  },
-
-  /**
-   * The homepage for visiting this repository. If the corresponding preference
-   * is not defined, defaults to about:blank.
-   */
-  get homepageURL() {
-    let url = this._formatURLPref(PREF_GETADDONS_BROWSEADDONS, {});
-    return (url != null) ? url : "about:blank";
-  },
-
-  /**
-   * Returns whether this instance is currently performing a search. New
-   * searches will not be performed while this is the case.
-   */
-  get isSearching() {
-    return this._searching;
-  },
-
-  /**
-   * The url that can be visited to see recommended add-ons in this repository.
-   * If the corresponding preference is not defined, defaults to about:blank.
-   */
-  getRecommendedURL: function() {
-    let url = this._formatURLPref(PREF_GETADDONS_BROWSERECOMMENDED, {});
-    return (url != null) ? url : "about:blank";
-  },
-
-  /**
-   * Retrieves the url that can be visited to see search results for the given
-   * terms. If the corresponding preference is not defined, defaults to
-   * about:blank.
-   *
-   * @param  aSearchTerms
-   *         Search terms used to search the repository
-   */
-  getSearchURL: function(aSearchTerms) {
-    let url = this._formatURLPref(PREF_GETADDONS_BROWSESEARCHRESULTS, {
-      TERMS : encodeURIComponent(aSearchTerms)
-    });
-    return (url != null) ? url : "about:blank";
-  },
-
-  /**
-   * Cancels the search in progress. If there is no search in progress this
-   * does nothing.
-   */
-  cancelSearch: function() {
-    this._searching = false;
-    if (this._request) {
-      this._request.abort();
-      this._request = null;
-    }
-    this._callback = null;
-  },
-
-  /**
-   * Begins a search for add-ons in this repository by ID. Results will be
-   * passed to the given callback.
-   *
-   * @param  aIDs
-   *         The array of ids to search for
-   * @param  aCallback
-   *         The callback to pass results to
-   */
-  getAddonsByIDs: function(aIDs, aCallback) {
-    return this._beginGetAddons(aIDs, aCallback, false);
-  },
-
-  /**
-   * Begins a search of add-ons, potentially sending performance data.
-   *
-   * @param  aIDs
-   *         Array of ids to search for.
-   * @param  aCallback
-   *         Function to pass results to.
-   * @param  aSendPerformance
-   *         Boolean indicating whether to send performance data with the
-   *         request.
-   * @param  aTimeout
-   *         (Optional) timeout in milliseconds to abandon the XHR request
-   *         if we have not received a response from the server.
-   */
-  _beginGetAddons: function(aIDs, aCallback, aSendPerformance, aTimeout) {
-    let ids = aIDs.slice(0);
-
-    let params = {
-      API_VERSION : API_VERSION,
-      IDS : ids.map(encodeURIComponent).join(',')
-    };
-
-    let pref = PREF_GETADDONS_BYIDS;
-
-    if (aSendPerformance) {
-      let type = Services.prefs.getPrefType(PREF_GETADDONS_BYIDS_PERFORMANCE);
-      if (type == Services.prefs.PREF_STRING) {
-        pref = PREF_GETADDONS_BYIDS_PERFORMANCE;
-
-        let startupInfo = Cc["@mozilla.org/toolkit/app-startup;1"].
-                          getService(Ci.nsIAppStartup).
-                          getStartupInfo();
-
-        params.TIME_MAIN = "";
-        params.TIME_FIRST_PAINT = "";
-        params.TIME_SESSION_RESTORED = "";
-        if (startupInfo.process) {
-          if (startupInfo.main) {
-            params.TIME_MAIN = startupInfo.main - startupInfo.process;
-          }
-          if (startupInfo.firstPaint) {
-            params.TIME_FIRST_PAINT = startupInfo.firstPaint -
-                                      startupInfo.process;
-          }
-          if (startupInfo.sessionRestored) {
-            params.TIME_SESSION_RESTORED = startupInfo.sessionRestored -
-                                           startupInfo.process;
-          }
-        }
-      }
-    }
-
-    let url = this._formatURLPref(pref, params);
-
-    let  handleResults = (aElements, aTotalResults, aCompatData) => {
-      // Don't use this._parseAddons() so that, for example,
-      // incompatible add-ons are not filtered out
-      let results = [];
-      for (let i = 0; i < aElements.length && results.length < this._maxResults; i++) {
-        let result = this._parseAddon(aElements[i], null, aCompatData);
-        if (result == null)
-          continue;
-
-        // Ignore add-on if it wasn't actually requested
-        let idIndex = ids.indexOf(result.addon.id);
-        if (idIndex == -1)
-          continue;
-
-        // Ignore add-on if the add-on manager doesn't know about its type:
-        if (!(result.addon.type in AddonManager.addonTypes)) {
-          continue;
-        }
-
-        results.push(result);
-        // Ignore this add-on from now on
-        ids.splice(idIndex, 1);
-      }
-
-      // Include any compatibility overrides for addons not hosted by the
-      // remote repository.
-      for (let id in aCompatData) {
-        let addonCompat = aCompatData[id];
-        if (addonCompat.hosted)
-          continue;
-
-        let addon = new AddonSearchResult(addonCompat.id);
-        // Compatibility overrides can only be for extensions.
-        addon.type = "extension";
-        addon.compatibilityOverrides = addonCompat.compatRanges;
-        let result = {
-          addon: addon,
-          xpiURL: null,
-          xpiHash: null
-        };
-        results.push(result);
-      }
-
-      // aTotalResults irrelevant
-      this._reportSuccess(results, -1);
-    }
-
-    this._beginSearch(url, ids.length, aCallback, handleResults, aTimeout);
-  },
-
-  /**
-   * Performs the daily background update check.
-   *
-   * This API both searches for the add-on IDs specified and sends performance
-   * data. It is meant to be called as part of the daily update ping. It should
-   * not be used for any other purpose. Use repopulateCache instead.
-   *
-   * @return Promise{null} Resolves when the metadata update is complete.
-   */
-  backgroundUpdateCheck: function() {
-    return this._repopulateCacheInternal(true);
-  },
-
-  /**
-   * Begins a search for recommended add-ons in this repository. Results will
-   * be passed to the given callback.
-   *
-   * @param  aMaxResults
-   *         The maximum number of results to return
-   * @param  aCallback
-   *         The callback to pass results to
-   */
-  retrieveRecommendedAddons: function(aMaxResults, aCallback) {
-    let url = this._formatURLPref(PREF_GETADDONS_GETRECOMMENDED, {
-      API_VERSION : API_VERSION,
-
-      // Get twice as many results to account for potential filtering
-      MAX_RESULTS : 2 * aMaxResults
-    });
-
-    let handleResults = (aElements, aTotalResults) => {
-      this._getLocalAddonIds(aLocalAddonIds => {
-        // aTotalResults irrelevant
-        this._parseAddons(aElements, -1, aLocalAddonIds);
-      });
-    }
-
-    this._beginSearch(url, aMaxResults, aCallback, handleResults);
-  },
-
-  /**
-   * Begins a search for add-ons in this repository. Results will be passed to
-   * the given callback.
-   *
-   * @param  aSearchTerms
-   *         The terms to search for
-   * @param  aMaxResults
-   *         The maximum number of results to return
-   * @param  aCallback
-   *         The callback to pass results to
-   */
-  searchAddons: function(aSearchTerms, aMaxResults, aCallback) {
-    let compatMode = "normal";
-    if (!AddonManager.checkCompatibility)
-      compatMode = "ignore";
-    else if (AddonManager.strictCompatibility)
-      compatMode = "strict";
-
-    let substitutions = {
-      API_VERSION : API_VERSION,
-      TERMS : encodeURIComponent(aSearchTerms),
-      // Get twice as many results to account for potential filtering
-      MAX_RESULTS : 2 * aMaxResults,
-      COMPATIBILITY_MODE : compatMode,
-    };
-
-    let url = this._formatURLPref(PREF_GETADDONS_GETSEARCHRESULTS, substitutions);
-
-    let handleResults = (aElements, aTotalResults) => {
-      this._getLocalAddonIds(aLocalAddonIds => {
-        this._parseAddons(aElements, aTotalResults, aLocalAddonIds);
-      });
-    }
-
-    this._beginSearch(url, aMaxResults, aCallback, handleResults);
-  },
-
-  // Posts results to the callback
-  _reportSuccess: function(aResults, aTotalResults) {
-    this._searching = false;
-    this._request = null;
-    // The callback may want to trigger a new search so clear references early
-    let addons = aResults.map(result => result.addon);
-    let callback = this._callback;
-    this._callback = null;
-    callback.searchSucceeded(addons, addons.length, aTotalResults);
-  },
-
-  // Notifies the callback of a failure
-  _reportFailure: function() {
-    this._searching = false;
-    this._request = null;
-    // The callback may want to trigger a new search so clear references early
-    let callback = this._callback;
-    this._callback = null;
-    callback.searchFailed();
-  },
-
-  // Get descendant by unique tag name. Returns null if not unique tag name.
-  _getUniqueDescendant: function(aElement, aTagName) {
-    let elementsList = aElement.getElementsByTagName(aTagName);
-    return (elementsList.length == 1) ? elementsList[0] : null;
-  },
-
-  // Get direct descendant by unique tag name.
-  // Returns null if not unique tag name.
-  _getUniqueDirectDescendant: function(aElement, aTagName) {
-    let elementsList = Array.filter(aElement.children,
-                                    aChild => aChild.tagName == aTagName);
-    return (elementsList.length == 1) ? elementsList[0] : null;
-  },
-
-  // Parse out trimmed text content. Returns null if text content empty.
-  _getTextContent: function(aElement) {
-    let textContent = aElement.textContent.trim();
-    return (textContent.length > 0) ? textContent : null;
-  },
-
-  // Parse out trimmed text content of a descendant with the specified tag name
-  // Returns null if the parsing unsuccessful.
-  _getDescendantTextContent: function(aElement, aTagName) {
-    let descendant = this._getUniqueDescendant(aElement, aTagName);
-    return (descendant != null) ? this._getTextContent(descendant) : null;
-  },
-
-  // Parse out trimmed text content of a direct descendant with the specified
-  // tag name.
-  // Returns null if the parsing unsuccessful.
-  _getDirectDescendantTextContent: function(aElement, aTagName) {
-    let descendant = this._getUniqueDirectDescendant(aElement, aTagName);
-    return (descendant != null) ? this._getTextContent(descendant) : null;
-  },
-
-  /*
-   * Creates an AddonSearchResult by parsing an <addon> element
-   *
-   * @param  aElement
-   *         The <addon> element to parse
-   * @param  aSkip
-   *         Object containing ids and sourceURIs of add-ons to skip.
-   * @param  aCompatData
-   *         Array of parsed addon_compatibility elements to accosiate with the
-   *         resulting AddonSearchResult. Optional.
-   * @return Result object containing the parsed AddonSearchResult, xpiURL and
-   *         xpiHash if the parsing was successful. Otherwise returns null.
-   */
-  _parseAddon: function(aElement, aSkip, aCompatData) {
-    let skipIDs = (aSkip && aSkip.ids) ? aSkip.ids : [];
-    let skipSourceURIs = (aSkip && aSkip.sourceURIs) ? aSkip.sourceURIs : [];
-
-    let guid = this._getDescendantTextContent(aElement, "guid");
-    if (guid == null || skipIDs.indexOf(guid) != -1)
-      return null;
-
-    let addon = new AddonSearchResult(guid);
-    let result = {
-      addon: addon,
-      xpiURL: null,
-      xpiHash: null
-    };
-
-    if (aCompatData && guid in aCompatData)
-      addon.compatibilityOverrides = aCompatData[guid].compatRanges;
-
-    for (let node = aElement.firstChild; node; node = node.nextSibling) {
-      if (!(node instanceof Ci.nsIDOMElement))
-        continue;
-
-      let localName = node.localName;
-
-      // Handle case where the wanted string value is located in text content
-      // but only if the content is not empty
-      if (localName in STRING_KEY_MAP) {
-        addon[STRING_KEY_MAP[localName]] = this._getTextContent(node) || addon[STRING_KEY_MAP[localName]];
-        continue;
-      }
-
-      // Handle case where the wanted string value is html located in text content
-      if (localName in HTML_KEY_MAP) {
-        addon[HTML_KEY_MAP[localName]] = convertHTMLToPlainText(this._getTextContent(node));
-        continue;
-      }
-
-      // Handle case where the wanted integer value is located in text content
-      if (localName in INTEGER_KEY_MAP) {
-        let value = parseInt(this._getTextContent(node));
-        if (value >= 0)
-          addon[INTEGER_KEY_MAP[localName]] = value;
-        continue;
-      }
-
-      // Handle cases that aren't as simple as grabbing the text content
-      switch (localName) {
-        case "type":
-          // Map AMO's type id to corresponding string
-          // https://github.com/mozilla/olympia/blob/master/apps/constants/base.py#L127
-          // These definitions need to be updated whenever AMO adds a new type.
-          let id = parseInt(node.getAttribute("id"));
-          switch (id) {
-            case 1:
-              addon.type = "extension";
-              break;
-            case 2:
-              addon.type = "theme";
-              break;
-            case 3:
-              addon.type = "dictionary";
-              break;
-            case 4:
-              addon.type = "search";
-              break;
-            case 5:
-            case 6:
-              addon.type = "locale";
-              break;
-            case 7:
-              addon.type = "plugin";
-              break;
-            case 8:
-              addon.type = "api";
-              break;
-            case 9:
-              addon.type = "lightweight-theme";
-              break;
-            case 11:
-              addon.type = "webapp";
-              break;
-            default:
-              logger.info("Unknown type id " + id + " found when parsing response for GUID " + guid);
-          }
-          break;
-        case "authors":
-          let authorNodes = node.getElementsByTagName("author");
-          for (let authorNode of authorNodes) {
-            let name = this._getDescendantTextContent(authorNode, "name");
-            let link = this._getDescendantTextContent(authorNode, "link");
-            if (name == null || link == null)
-              continue;
-
-            let author = new AddonManagerPrivate.AddonAuthor(name, link);
-            if (addon.creator == null)
-              addon.creator = author;
-            else {
-              if (addon.developers == null)
-                addon.developers = [];
-
-              addon.developers.push(author);
-            }
-          }
-          break;
-        case "previews":
-          let previewNodes = node.getElementsByTagName("preview");
-          for (let previewNode of previewNodes) {
-            let full = this._getUniqueDescendant(previewNode, "full");
-            if (full == null)
-              continue;
-
-            let fullURL = this._getTextContent(full);
-            let fullWidth = full.getAttribute("width");
-            let fullHeight = full.getAttribute("height");
-
-            let thumbnailURL, thumbnailWidth, thumbnailHeight;
-            let thumbnail = this._getUniqueDescendant(previewNode, "thumbnail");
-            if (thumbnail) {
-              thumbnailURL = this._getTextContent(thumbnail);
-              thumbnailWidth = thumbnail.getAttribute("width");
-              thumbnailHeight = thumbnail.getAttribute("height");
-            }
-            let caption = this._getDescendantTextContent(previewNode, "caption");
-            let screenshot = new AddonManagerPrivate.AddonScreenshot(fullURL, fullWidth, fullHeight,
-                                                                     thumbnailURL, thumbnailWidth,
-                                                                     thumbnailHeight, caption);
-
-            if (addon.screenshots == null)
-              addon.screenshots = [];
-
-            if (previewNode.getAttribute("primary") == 1)
-              addon.screenshots.unshift(screenshot);
-            else
-              addon.screenshots.push(screenshot);
-          }
-          break;
-        case "learnmore":
-          addon.learnmoreURL = this._getTextContent(node);
-          addon.homepageURL = addon.homepageURL || addon.learnmoreURL;
-          break;
-        case "contribution_data":
-          let meetDevelopers = this._getDescendantTextContent(node, "meet_developers");
-          let suggestedAmount = this._getDescendantTextContent(node, "suggested_amount");
-          if (meetDevelopers != null) {
-            addon.contributionURL = meetDevelopers;
-            addon.contributionAmount = suggestedAmount;
-          }
-          break
-        case "payment_data":
-          let link = this._getDescendantTextContent(node, "link");
-          let amountTag = this._getUniqueDescendant(node, "amount");
-          let amount = parseFloat(amountTag.getAttribute("amount"));
-          let displayAmount = this._getTextContent(amountTag);
-          if (link != null && amount != null && displayAmount != null) {
-            addon.purchaseURL = link;
-            addon.purchaseAmount = amount;
-            addon.purchaseDisplayAmount = displayAmount;
-          }
-          break
-        case "rating":
-          let averageRating = parseInt(this._getTextContent(node));
-          if (averageRating >= 0)
-            addon.averageRating = Math.min(5, averageRating);
-          break;
-        case "reviews":
-          let url = this._getTextContent(node);
-          let num = parseInt(node.getAttribute("num"));
-          if (url != null && num >= 0) {
-            addon.reviewURL = url;
-            addon.reviewCount = num;
-          }
-          break;
-        case "status":
-          let repositoryStatus = parseInt(node.getAttribute("id"));
-          if (!isNaN(repositoryStatus))
-            addon.repositoryStatus = repositoryStatus;
-          break;
-        case "all_compatible_os":
-          let nodes = node.getElementsByTagName("os");
-          addon.isPlatformCompatible = Array.some(nodes, function(aNode) {
-            let text = aNode.textContent.toLowerCase().trim();
-            return text == "all" || text == Services.appinfo.OS.toLowerCase();
-          });
-          break;
-        case "install":
-          // No os attribute means the xpi is compatible with any os
-          if (node.hasAttribute("os")) {
-            let os = node.getAttribute("os").trim().toLowerCase();
-            // If the os is not ALL and not the current OS then ignore this xpi
-            if (os != "all" && os != Services.appinfo.OS.toLowerCase())
-              break;
-          }
-
-          let xpiURL = this._getTextContent(node);
-          if (xpiURL == null)
-            break;
-
-          if (skipSourceURIs.indexOf(xpiURL) != -1)
-            return null;
-
-          result.xpiURL = xpiURL;
-          addon.sourceURI = NetUtil.newURI(xpiURL);
-
-          let size = parseInt(node.getAttribute("size"));
-          addon.size = (size >= 0) ? size : null;
-
-          let xpiHash = node.getAttribute("hash");
-          if (xpiHash != null)
-            xpiHash = xpiHash.trim();
-          result.xpiHash = xpiHash ? xpiHash : null;
-          break;
-        case "last_updated":
-          let epoch = parseInt(node.getAttribute("epoch"));
-          if (!isNaN(epoch))
-            addon.updateDate = new Date(1000 * epoch);
-          break;
-        case "icon":
-          addon.icons[node.getAttribute("size")] = this._getTextContent(node);
-          break;
-      }
-    }
-
-    return result;
-  },
-
-  _parseAddons: function(aElements, aTotalResults, aSkip) {
-    let results = [];
-
-    let isSameApplication = aAppNode => this._getTextContent(aAppNode) == Services.appinfo.ID;
-
-    for (let i = 0; i < aElements.length && results.length < this._maxResults; i++) {
-      let element = aElements[i];
-
-      let tags = this._getUniqueDescendant(element, "compatible_applications");
-      if (tags == null)
-        continue;
-
-      let applications = tags.getElementsByTagName("appID");
-      let compatible = Array.some(applications, aAppNode => {
-        if (!isSameApplication(aAppNode))
-          return false;
-
-        let parent = aAppNode.parentNode;
-        let minVersion = this._getDescendantTextContent(parent, "min_version");
-        let maxVersion = this._getDescendantTextContent(parent, "max_version");
-        if (minVersion == null || maxVersion == null)
-          return false;
-
-        let currentVersion = Services.appinfo.version;
-        return (Services.vc.compare(minVersion, currentVersion) <= 0 &&
-                ((!AddonManager.strictCompatibility) ||
-                 Services.vc.compare(currentVersion, maxVersion) <= 0));
-      });
-
-      // Ignore add-ons not compatible with this Application
-      if (!compatible) {
-        if (AddonManager.checkCompatibility)
-          continue;
-
-        if (!Array.some(applications, isSameApplication))
-          continue;
-      }
-
-      // Add-on meets all requirements, so parse out data.
-      // Don't pass in compatiblity override data, because that's only returned
-      // in GUID searches, which don't use _parseAddons().
-      let result = this._parseAddon(element, aSkip);
-      if (result == null)
-        continue;
-
-      // Ignore add-on missing a required attribute
-      let requiredAttributes = ["id", "name", "version", "type", "creator"];
-      if (requiredAttributes.some(aAttribute => !result.addon[aAttribute]))
-        continue;
-
-      // Ignore add-on with a type AddonManager doesn't understand:
-      if (!(result.addon.type in AddonManager.addonTypes))
-        continue;
-
-      // Add only if the add-on is compatible with the platform
-      if (!result.addon.isPlatformCompatible)
-        continue;
-
-      // Add only if there was an xpi compatible with this OS or there was a
-      // way to purchase the add-on
-      if (!result.xpiURL && !result.addon.purchaseURL)
-        continue;
-
-      result.addon.isCompatible = compatible;
-
-      results.push(result);
-      // Ignore this add-on from now on by adding it to the skip array
-      aSkip.ids.push(result.addon.id);
-    }
-
-    // Immediately report success if no AddonInstall instances to create
-    let pendingResults = results.length;
-    if (pendingResults == 0) {
-      this._reportSuccess(results, aTotalResults);
-      return;
-    }
-
-    // Create an AddonInstall for each result
-    for (let result of results) {
-      let addon = result.addon;
-      let callback = aInstall => {
-        addon.install = aInstall;
-        pendingResults--;
-        if (pendingResults == 0)
-          this._reportSuccess(results, aTotalResults);
-      }
-
-      if (result.xpiURL) {
-        AddonManager.getInstallForURL(result.xpiURL, callback,
-                                      "application/x-xpinstall", result.xpiHash,
-                                      addon.name, addon.icons, addon.version);
-      }
-      else {
-        callback(null);
-      }
-    }
-  },
-
-  // Parses addon_compatibility nodes, that describe compatibility overrides.
-  _parseAddonCompatElement: function(aResultObj, aElement) {
-    let guid = this._getDescendantTextContent(aElement, "guid");
-    if (!guid) {
-        logger.debug("Compatibility override is missing guid.");
-      return;
-    }
-
-    let compat = {id: guid};
-    compat.hosted = aElement.getAttribute("hosted") != "false";
-
-    function findMatchingAppRange(aNodes) {
-      let toolkitAppRange = null;
-      for (let node of aNodes) {
-        let appID = this._getDescendantTextContent(node, "appID");
-        if (appID != Services.appinfo.ID && appID != TOOLKIT_ID)
-          continue;
-
-        let minVersion = this._getDescendantTextContent(node, "min_version");
-        let maxVersion = this._getDescendantTextContent(node, "max_version");
-        if (minVersion == null || maxVersion == null)
-          continue;
-
-        let appRange = { appID: appID,
-                         appMinVersion: minVersion,
-                         appMaxVersion: maxVersion };
-
-        // Only use Toolkit app ranges if no ranges match the application ID.
-        if (appID == TOOLKIT_ID)
-          toolkitAppRange = appRange;
-        else
-          return appRange;
-      }
-      return toolkitAppRange;
-    }
-
-    function parseRangeNode(aNode) {
-      let type = aNode.getAttribute("type");
-      // Only "incompatible" (blacklisting) is supported for now.
-      if (type != "incompatible") {
-        logger.debug("Compatibility override of unsupported type found.");
-        return null;
-      }
-
-      let override = new AddonManagerPrivate.AddonCompatibilityOverride(type);
-
-      override.minVersion = this._getDirectDescendantTextContent(aNode, "min_version");
-      override.maxVersion = this._getDirectDescendantTextContent(aNode, "max_version");
-
-      if (!override.minVersion) {
-        logger.debug("Compatibility override is missing min_version.");
-        return null;
-      }
-      if (!override.maxVersion) {
-        logger.debug("Compatibility override is missing max_version.");
-        return null;
-      }
-
-      let appRanges = aNode.querySelectorAll("compatible_applications > application");
-      let appRange = findMatchingAppRange.bind(this)(appRanges);
-      if (!appRange) {
-        logger.debug("Compatibility override is missing a valid application range.");
-        return null;
-      }
-
-      override.appID = appRange.appID;
-      override.appMinVersion = appRange.appMinVersion;
-      override.appMaxVersion = appRange.appMaxVersion;
-
-      return override;
-    }
-
-    let rangeNodes = aElement.querySelectorAll("version_ranges > version_range");
-    compat.compatRanges = Array.map(rangeNodes, parseRangeNode.bind(this))
-                               .filter(aItem => !!aItem);
-    if (compat.compatRanges.length == 0)
-      return;
-
-    aResultObj[compat.id] = compat;
-  },
-
-  // Parses addon_compatibility elements.
-  _parseAddonCompatData: function(aElements) {
-    let compatData = {};
-    Array.forEach(aElements, this._parseAddonCompatElement.bind(this, compatData));
-    return compatData;
-  },
-
-  // Begins a new search if one isn't currently executing
-  _beginSearch: function(aURI, aMaxResults, aCallback, aHandleResults, aTimeout) {
-    if (this._searching || aURI == null || aMaxResults <= 0) {
-      logger.warn("AddonRepository search failed: searching " + this._searching + " aURI " + aURI +
-                  " aMaxResults " + aMaxResults);
-      aCallback.searchFailed();
-      return;
-    }
-
-    this._searching = true;
-    this._callback = aCallback;
-    this._maxResults = aMaxResults;
-
-    logger.debug("Requesting " + aURI);
-
-    this._request = new ServiceRequest();
-    this._request.mozBackgroundRequest = true;
-    this._request.open("GET", aURI, true);
-    this._request.overrideMimeType("text/xml");
-    if (aTimeout) {
-      this._request.timeout = aTimeout;
-    }
-
-    this._request.addEventListener("error", aEvent => this._reportFailure(), false);
-    this._request.addEventListener("timeout", aEvent => this._reportFailure(), false);
-    this._request.addEventListener("load", aEvent => {
-      logger.debug("Got metadata search load event");
-      let request = aEvent.target;
-      let responseXML = request.responseXML;
-
-      if (!responseXML || responseXML.documentElement.namespaceURI == XMLURI_PARSE_ERROR ||
-          (request.status != 200 && request.status != 0)) {
-        this._reportFailure();
-        return;
-      }
-
-      let documentElement = responseXML.documentElement;
-      let elements = documentElement.getElementsByTagName("addon");
-      let totalResults = elements.length;
-      let parsedTotalResults = parseInt(documentElement.getAttribute("total_results"));
-      // Parsed value of total results only makes sense if >= elements.length
-      if (parsedTotalResults >= totalResults)
-        totalResults = parsedTotalResults;
-
-      let compatElements = documentElement.getElementsByTagName("addon_compatibility");
-      let compatData = this._parseAddonCompatData(compatElements);
-
-      aHandleResults(elements, totalResults, compatData);
-    }, false);
-    this._request.send(null);
-  },
-
-  // Gets the id's of local add-ons, and the sourceURI's of local installs,
-  // passing the results to aCallback
-  _getLocalAddonIds: function(aCallback) {
-    let localAddonIds = {ids: null, sourceURIs: null};
-
-    AddonManager.getAllAddons(function(aAddons) {
-      localAddonIds.ids = aAddons.map(a => a.id);
-      if (localAddonIds.sourceURIs)
-        aCallback(localAddonIds);
-    });
-
-    AddonManager.getAllInstalls(function(aInstalls) {
-      localAddonIds.sourceURIs = [];
-      for (let install of aInstalls) {
-        if (install.state != AddonManager.STATE_AVAILABLE)
-          localAddonIds.sourceURIs.push(install.sourceURI.spec);
-      }
-
-      if (localAddonIds.ids)
-        aCallback(localAddonIds);
-    });
-  },
-
-  // Create url from preference, returning null if preference does not exist
-  _formatURLPref: function(aPreference, aSubstitutions) {
-    let url = null;
-    try {
-      url = Services.prefs.getCharPref(aPreference);
-    } catch (e) {
-      logger.warn("_formatURLPref: Couldn't get pref: " + aPreference);
-      return null;
-    }
-
-    url = url.replace(/%([A-Z_]+)%/g, function(aMatch, aKey) {
-      return (aKey in aSubstitutions) ? aSubstitutions[aKey] : aMatch;
-    });
-
-    return Services.urlFormatter.formatURL(url);
-  },
-
-  // Find a AddonCompatibilityOverride that matches a given aAddonVersion and
-  // application/platform version.
-  findMatchingCompatOverride: function(aAddonVersion,
-                                                                     aCompatOverrides,
-                                                                     aAppVersion,
-                                                                     aPlatformVersion) {
-    for (let override of aCompatOverrides) {
-
-      let appVersion = null;
-      if (override.appID == TOOLKIT_ID)
-        appVersion = aPlatformVersion || Services.appinfo.platformVersion;
-      else
-        appVersion = aAppVersion || Services.appinfo.version;
-
-      if (Services.vc.compare(override.minVersion, aAddonVersion) <= 0 &&
-          Services.vc.compare(aAddonVersion, override.maxVersion) <= 0 &&
-          Services.vc.compare(override.appMinVersion, appVersion) <= 0 &&
-          Services.vc.compare(appVersion, override.appMaxVersion) <= 0) {
-        return override;
-      }
-    }
-    return null;
-  },
-
-  flush: function() {
-    return AddonDatabase.flush();
-  }
-};
-
-var AddonDatabase = {
-  connectionPromise: null,
-  // the in-memory database
-  DB: BLANK_DB(),
-
-  /**
-   * A getter to retrieve the path to the DB
-   */
-  get jsonFile() {
-    return OS.Path.join(OS.Constants.Path.profileDir, FILE_DATABASE);
- },
-
-  /**
-   * Asynchronously opens a new connection to the database file.
-   *
-   * @return {Promise} a promise that resolves to the database.
-   */
-  openConnection: function() {
-    if (!this.connectionPromise) {
-     this.connectionPromise = Task.spawn(function*() {
-       this.DB = BLANK_DB();
-
-       let inputDB, schema;
-
-       try {
-         let data = yield OS.File.read(this.jsonFile, { encoding: "utf-8"})
-         inputDB = JSON.parse(data);
-
-         if (!inputDB.hasOwnProperty("addons") ||
-             !Array.isArray(inputDB.addons)) {
-           throw new Error("No addons array.");
-         }
-
-         if (!inputDB.hasOwnProperty("schema")) {
-           throw new Error("No schema specified.");
-         }
-
-         schema = parseInt(inputDB.schema, 10);
-
-         if (!Number.isInteger(schema) ||
-             schema < DB_MIN_JSON_SCHEMA) {
-           throw new Error("Invalid schema value.");
-         }
-       } catch (e) {
-         if (e instanceof OS.File.Error && e.becauseNoSuchFile) {
-           logger.debug("No " + FILE_DATABASE + " found.");
-         } else {
-           logger.error(`Malformed ${FILE_DATABASE}: ${e} - resetting to empty`);
-         }
-
-         // Create a blank addons.json file
-         this._saveDBToDisk();
-
-         let dbSchema = 0;
-         try {
-           dbSchema = Services.prefs.getIntPref(PREF_GETADDONS_DB_SCHEMA);
-         } catch (e) {}
-
-         if (dbSchema < DB_MIN_JSON_SCHEMA) {
-           let results = yield new Promise((resolve, reject) => {
-             AddonRepository_SQLiteMigrator.migrate(resolve);
-           });
-
-           if (results.length) {
-             yield this._insertAddons(results);
-           }
-
-         }
-
-         Services.prefs.setIntPref(PREF_GETADDONS_DB_SCHEMA, DB_SCHEMA);
-         return this.DB;
-       }
-
-       Services.prefs.setIntPref(PREF_GETADDONS_DB_SCHEMA, DB_SCHEMA);
-
-       // We use _insertAddon manually instead of calling
-       // insertAddons to avoid the write to disk which would
-       // be a waste since this is the data that was just read.
-       for (let addon of inputDB.addons) {
-         this._insertAddon(addon);
-       }
-
-       return this.DB;
-     }.bind(this));
-    }
-
-    return this.connectionPromise;
-  },
-
-  /**
-   * A lazy getter for the database connection.
-   */
-  get connection() {
-    return this.openConnection();
-  },
-
-  /**
-   * Asynchronously shuts down the database connection and releases all
-   * cached objects
-   *
-   * @param  aCallback
-   *         An optional callback to call once complete
-   * @param  aSkipFlush
-   *         An optional boolean to skip flushing data to disk. Useful
-   *         when the database is going to be deleted afterwards.
-   */
-  shutdown: function(aSkipFlush) {
-    if (!this.connectionPromise) {
-      return Promise.resolve();
-    }
-
-    this.connectionPromise = null;
-
-    if (aSkipFlush) {
-      return Promise.resolve();
-    }
-    return this.Writer.flush();
-  },
-
-  /**
-   * Asynchronously deletes the database, shutting down the connection
-   * first if initialized
-   *
-   * @param  aCallback
-   *         An optional callback to call once complete
-   * @return Promise{null} resolves when the database has been deleted
-   */
-  delete: function(aCallback) {
-    this.DB = BLANK_DB();
-
-    this._deleting = this.Writer.flush()
-      .then(null, () => {})
-      // shutdown(true) never rejects
-      .then(() => this.shutdown(true))
-      .then(() => OS.File.remove(this.jsonFile, {}))
-      .then(null, error => logger.error("Unable to delete Addon Repository file " +
-                                 this.jsonFile, error))
-      .then(() => this._deleting = null)
-      .then(aCallback);
-    return this._deleting;
-  },
-
-  toJSON: function() {
-    let json = {
-      schema: this.DB.schema,
-      addons: []
-    }
-
-    for (let [, value] of this.DB.addons)
-      json.addons.push(value);
-
-    return json;
-  },
-
-  /*
-   * This is a deferred task writer that is used
-   * to batch operations done within 50ms of each
-   * other and thus generating only one write to disk
-   */
-  get Writer() {
-    delete this.Writer;
-    this.Writer = new DeferredSave(
-      this.jsonFile,
-      () => { return JSON.stringify(this); },
-      DB_BATCH_TIMEOUT_MS
-    );
-    return this.Writer;
-  },
-
-  /**
-   * Flush any pending I/O on the addons.json file
-   * @return: Promise{null}
-   *          Resolves when the pending I/O (writing out or deleting
-   *          addons.json) completes
-   */
-  flush: function() {
-    if (this._deleting) {
-      return this._deleting;
-    }
-    return this.Writer.flush();
-  },
-
-  /**
-   * Asynchronously retrieve all add-ons from the database
-   * @return: Promise{Map}
-   *          Resolves when the add-ons are retrieved from the database
-   */
-  retrieveStoredData: function() {
-    return this.openConnection().then(db => db.addons);
-  },
-
-  /**
-   * Asynchronously repopulates the database so it only contains the
-   * specified add-ons
-   *
-   * @param  aAddons
-   *         The array of add-ons to repopulate the database with
-   * @param  aCallback
-   *         An optional callback to call once complete
-   */
-  repopulate: function(aAddons, aCallback) {
-    this.DB.addons.clear();
-    this.insertAddons(aAddons, function() {
-      let now = Math.round(Date.now() / 1000);
-      logger.debug("Cache repopulated, setting " + PREF_METADATA_LASTUPDATE + " to " + now);
-      Services.prefs.setIntPref(PREF_METADATA_LASTUPDATE, now);
-      if (aCallback)
-        aCallback();
-    });
-  },
-
-  /**
-   * Asynchronously inserts an array of add-ons into the database
-   *
-   * @param  aAddons
-   *         The array of add-ons to insert
-   * @param  aCallback
-   *         An optional callback to call once complete
-   */
-  insertAddons: Task.async(function*(aAddons, aCallback) {
-    yield this.openConnection();
-    yield this._insertAddons(aAddons, aCallback);
-  }),
-
-  _insertAddons: Task.async(function*(aAddons, aCallback) {
-    for (let addon of aAddons) {
-      this._insertAddon(addon);
-    }
-
-    yield this._saveDBToDisk();
-    aCallback && aCallback();
-  }),
-
-  /**
-   * Inserts an individual add-on into the database. If the add-on already
-   * exists in the database (by id), then the specified add-on will not be
-   * inserted.
-   *
-   * @param  aAddon
-   *         The add-on to insert into the database
-   * @param  aCallback
-   *         The callback to call once complete
-   */
-  _insertAddon: function(aAddon) {
-    let newAddon = this._parseAddon(aAddon);
-    if (!newAddon ||
-        !newAddon.id ||
-        this.DB.addons.has(newAddon.id))
-      return;
-
-    this.DB.addons.set(newAddon.id, newAddon);
-  },
-
-  /*
-   * Creates an AddonSearchResult by parsing an object structure
-   * retrieved from the DB JSON representation.
-   *
-   * @param  aObj
-   *         The object to parse
-   * @return Returns an AddonSearchResult object.
-   */
-  _parseAddon: function(aObj) {
-    if (aObj instanceof AddonSearchResult)
-      return aObj;
-
-    let id = aObj.id;
-    if (!aObj.id)
-      return null;
-
-    let addon = new AddonSearchResult(id);
-
-    for (let expectedProperty of Object.keys(AddonSearchResult.prototype)) {
-      if (!(expectedProperty in aObj) ||
-          typeof(aObj[expectedProperty]) === "function")
-        continue;
-
-      let value = aObj[expectedProperty];
-
-      try {
-        switch (expectedProperty) {
-          case "sourceURI":
-            addon.sourceURI = value ? NetUtil.newURI(value) :  null;
-            break;
-
-          case "creator":
-            addon.creator = value
-                            ? this._makeDeveloper(value)
-                            : null;
-            break;
-
-          case "updateDate":
-            addon.updateDate = value ? new Date(value) : null;
-            break;
-
-          case "developers":
-            if (!addon.developers) addon.developers = [];
-            for (let developer of value) {
-              addon.developers.push(this._makeDeveloper(developer));
-            }
-            break;
-
-          case "screenshots":
-            if (!addon.screenshots) addon.screenshots = [];
-            for (let screenshot of value) {
-              addon.screenshots.push(this._makeScreenshot(screenshot));
-            }
-            break;
-
-          case "compatibilityOverrides":
-            if (!addon.compatibilityOverrides) addon.compatibilityOverrides = [];
-            for (let override of value) {
-              addon.compatibilityOverrides.push(
-                this._makeCompatOverride(override)
-              );
-            }
-            break;
-
-          case "icons":
-            if (!addon.icons) addon.icons = {};
-            for (let size of Object.keys(aObj.icons)) {
-              addon.icons[size] = aObj.icons[size];
-            }
-            break;
-
-          case "iconURL":
-            break;
-
-          default:
-            addon[expectedProperty] = value;
-        }
-      } catch (ex) {
-        logger.warn("Error in parsing property value for " + expectedProperty + " | " + ex);
-      }
-
-      // delete property from obj to indicate we've already
-      // handled it. The remaining public properties will
-      // be stored separately and just passed through to
-      // be written back to the DB.
-      delete aObj[expectedProperty];
-    }
-
-    // Copy remaining properties to a separate object
-    // to prevent accidental access on downgraded versions.
-    // The properties will be merged in the same object
-    // prior to being written back through toJSON.
-    for (let remainingProperty of Object.keys(aObj)) {
-      switch (typeof(aObj[remainingProperty])) {
-        case "boolean":
-        case "number":
-        case "string":
-        case "object":
-          // these types are accepted
-          break;
-        default:
-          continue;
-      }
-
-      if (!remainingProperty.startsWith("_"))
-        addon._unsupportedProperties[remainingProperty] =
-          aObj[remainingProperty];
-    }
-
-    return addon;
-  },
-
-  /**
-   * Write the in-memory DB to disk, after waiting for
-   * the DB_BATCH_TIMEOUT_MS timeout.
-   *
-   * @return Promise A promise that resolves after the
-   *                 write to disk has completed.
-   */
-  _saveDBToDisk: function() {
-    return this.Writer.saveChanges().then(
-      null,
-      e => logger.error("SaveDBToDisk failed", e));
-  },
-
-  /**
-   * Make a developer object from a vanilla
-   * JS object from the JSON database
-   *
-   * @param  aObj
-   *         The JS object to use
-   * @return The created developer
-   */
-  _makeDeveloper: function(aObj) {
-    let name = aObj.name;
-    let url = aObj.url;
-    return new AddonManagerPrivate.AddonAuthor(name, url);
-  },
-
-  /**
-   * Make a screenshot object from a vanilla
-   * JS object from the JSON database
-   *
-   * @param  aObj
-   *         The JS object to use
-   * @return The created screenshot
-   */
-  _makeScreenshot: function(aObj) {
-    let url = aObj.url;
-    let width = aObj.width;
-    let height = aObj.height;
-    let thumbnailURL = aObj.thumbnailURL;
-    let thumbnailWidth = aObj.thumbnailWidth;
-    let thumbnailHeight = aObj.thumbnailHeight;
-    let caption = aObj.caption;
-    return new AddonManagerPrivate.AddonScreenshot(url, width, height, thumbnailURL,
-                                                   thumbnailWidth, thumbnailHeight, caption);
-  },
-
-  /**
-   * Make a CompatibilityOverride from a vanilla
-   * JS object from the JSON database
-   *
-   * @param  aObj
-   *         The JS object to use
-   * @return The created CompatibilityOverride
-   */
-  _makeCompatOverride: function(aObj) {
-    let type = aObj.type;
-    let minVersion = aObj.minVersion;
-    let maxVersion = aObj.maxVersion;
-    let appID = aObj.appID;
-    let appMinVersion = aObj.appMinVersion;
-    let appMaxVersion = aObj.appMaxVersion;
-    return new AddonManagerPrivate.AddonCompatibilityOverride(type,
-                                                              minVersion,
-                                                              maxVersion,
-                                                              appID,
-                                                              appMinVersion,
-                                                              appMaxVersion);
-  },
-};