diff options
Diffstat (limited to 'browser/components/sessionstore/SessionStorage.jsm')
| -rw-r--r-- | browser/components/sessionstore/SessionStorage.jsm | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/browser/components/sessionstore/SessionStorage.jsm b/browser/components/sessionstore/SessionStorage.jsm deleted file mode 100644 index 705139ebf..000000000 --- a/browser/components/sessionstore/SessionStorage.jsm +++ /dev/null @@ -1,173 +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"; - -this.EXPORTED_SYMBOLS = ["SessionStorage"]; - -const Cu = Components.utils; -const Ci = Components.interfaces; - -Cu.import("resource://gre/modules/Services.jsm"); -Cu.import("resource://gre/modules/XPCOMUtils.jsm"); - -XPCOMUtils.defineLazyModuleGetter(this, "console", - "resource://gre/modules/Console.jsm"); - -// Returns the principal for a given |frame| contained in a given |docShell|. -function getPrincipalForFrame(docShell, frame) { - let ssm = Services.scriptSecurityManager; - let uri = frame.document.documentURIObject; - return ssm.getDocShellCodebasePrincipal(uri, docShell); -} - -this.SessionStorage = Object.freeze({ - /** - * Updates all sessionStorage "super cookies" - * @param docShell - * That tab's docshell (containing the sessionStorage) - * @param frameTree - * The docShell's FrameTree instance. - * @return Returns a nested object that will have hosts as keys and per-host - * session storage data as strings. For example: - * {"example.com": {"key": "value", "my_number": "123"}} - */ - collect: function (docShell, frameTree) { - return SessionStorageInternal.collect(docShell, frameTree); - }, - - /** - * Restores all sessionStorage "super cookies". - * @param aDocShell - * A tab's docshell (containing the sessionStorage) - * @param aStorageData - * A nested object with storage data to be restored that has hosts as - * keys and per-host session storage data as strings. For example: - * {"example.com": {"key": "value", "my_number": "123"}} - */ - restore: function (aDocShell, aStorageData) { - SessionStorageInternal.restore(aDocShell, aStorageData); - }, -}); - -var SessionStorageInternal = { - /** - * Reads all session storage data from the given docShell. - * @param docShell - * A tab's docshell (containing the sessionStorage) - * @param frameTree - * The docShell's FrameTree instance. - * @return Returns a nested object that will have hosts as keys and per-host - * session storage data as strings. For example: - * {"example.com": {"key": "value", "my_number": "123"}} - */ - collect: function (docShell, frameTree) { - let data = {}; - let visitedOrigins = new Set(); - - frameTree.forEach(frame => { - let principal = getPrincipalForFrame(docShell, frame); - if (!principal) { - return; - } - - // Get the origin of the current history entry - // and use that as a key for the per-principal storage data. - let origin = principal.origin; - if (visitedOrigins.has(origin)) { - // Don't read a host twice. - return; - } - - // Mark the current origin as visited. - visitedOrigins.add(origin); - - let originData = this._readEntry(principal, docShell); - if (Object.keys(originData).length) { - data[origin] = originData; - } - }); - - return Object.keys(data).length ? data : null; - }, - - /** - * Writes session storage data to the given tab. - * @param aDocShell - * A tab's docshell (containing the sessionStorage) - * @param aStorageData - * A nested object with storage data to be restored that has hosts as - * keys and per-host session storage data as strings. For example: - * {"example.com": {"key": "value", "my_number": "123"}} - */ - restore: function (aDocShell, aStorageData) { - for (let origin of Object.keys(aStorageData)) { - let data = aStorageData[origin]; - - let principal; - - try { - let attrs = aDocShell.getOriginAttributes(); - let originURI = Services.io.newURI(origin, null, null); - principal = Services.scriptSecurityManager.createCodebasePrincipal(originURI, attrs); - } catch (e) { - console.error(e); - continue; - } - - let storageManager = aDocShell.QueryInterface(Ci.nsIDOMStorageManager); - let window = aDocShell.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow); - - // There is no need to pass documentURI, it's only used to fill documentURI property of - // domstorage event, which in this case has no consumer. Prevention of events in case - // of missing documentURI will be solved in a followup bug to bug 600307. - let storage = storageManager.createStorage(window, principal, "", aDocShell.usePrivateBrowsing); - - for (let key of Object.keys(data)) { - try { - storage.setItem(key, data[key]); - } catch (e) { - // throws e.g. for URIs that can't have sessionStorage - console.error(e); - } - } - } - }, - - /** - * Reads an entry in the session storage data contained in a tab's history. - * @param aURI - * That history entry uri - * @param aDocShell - * A tab's docshell (containing the sessionStorage) - */ - _readEntry: function (aPrincipal, aDocShell) { - let hostData = {}; - let storage; - - let window = aDocShell.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindow); - - try { - let storageManager = aDocShell.QueryInterface(Ci.nsIDOMStorageManager); - storage = storageManager.getStorage(window, aPrincipal); - storage.length; // XXX: Bug 1232955 - storage.length can throw, catch that failure - } catch (e) { - // sessionStorage might throw if it's turned off, see bug 458954 - storage = null; - } - - if (storage && storage.length) { - for (let i = 0; i < storage.length; i++) { - try { - let key = storage.key(i); - hostData[key] = storage.getItem(key); - } catch (e) { - // This currently throws for secured items (cf. bug 442048). - } - } - } - - return hostData; - } -}; |