gecko/toolkit/identity/IdentityProvider.jsm

495 lines
16 KiB
JavaScript

/* -*- Mode: js2; js2-basic-offset: 2; indent-tabs-mode: nil; -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* 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 Cu = Components.utils;
const Ci = Components.interfaces;
const Cc = Components.classes;
const Cr = Components.results;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/identity/LogUtils.jsm");
Cu.import("resource://gre/modules/identity/Sandbox.jsm");
this.EXPORTED_SYMBOLS = ["IdentityProvider"];
const FALLBACK_PROVIDER = "browserid.org";
XPCOMUtils.defineLazyModuleGetter(this,
"jwcrypto",
"resource://gre/modules/identity/jwcrypto.jsm");
function log(...aMessageArgs) {
Logger.log.apply(Logger, ["IDP"].concat(aMessageArgs));
}
function reportError(...aMessageArgs) {
Logger.reportError.apply(Logger, ["IDP"].concat(aMessageArgs));
}
function IdentityProviderService() {
XPCOMUtils.defineLazyModuleGetter(this,
"_store",
"resource://gre/modules/identity/IdentityStore.jsm",
"IdentityStore");
this.reset();
}
IdentityProviderService.prototype = {
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports, Ci.nsIObserver]),
_sandboxConfigured: false,
observe: function observe(aSubject, aTopic, aData) {
switch (aTopic) {
case "quit-application-granted":
Services.obs.removeObserver(this, "quit-application-granted");
this.shutdown();
break;
}
},
reset: function IDP_reset() {
// Clear the provisioning flows. Provision flows contain an
// identity, idpParams (how to reach the IdP to provision and
// authenticate), a callback (a completion callback for when things
// are done), and a provisioningFrame (which is the provisioning
// sandbox). Additionally, two callbacks will be attached:
// beginProvisioningCallback and genKeyPairCallback.
this._provisionFlows = {};
// Clear the authentication flows. Authentication flows attach
// to provision flows. In the process of provisioning an id, it
// may be necessary to authenticate with an IdP. The authentication
// flow maintains the state of that authentication process.
this._authenticationFlows = {};
},
getProvisionFlow: function getProvisionFlow(aProvId, aErrBack) {
let provFlow = this._provisionFlows[aProvId];
if (provFlow) {
return provFlow;
}
let err = "No provisioning flow found with id " + aProvId;
log("ERROR:", err);
if (typeof aErrBack === 'function') {
aErrBack(err);
}
},
shutdown: function RP_shutdown() {
this.reset();
if (this._sandboxConfigured) {
// Tear down message manager listening on the hidden window
Cu.import("resource://gre/modules/DOMIdentity.jsm");
DOMIdentity._configureMessages(Services.appShell.hiddenDOMWindow, false);
this._sandboxConfigured = false;
}
Services.obs.removeObserver(this, "quit-application-granted");
},
get securityLevel() {
return 1;
},
get certDuration() {
switch(this.securityLevel) {
default:
return 3600;
}
},
/**
* Provision an Identity
*
* @param aIdentity
* (string) the email we're logging in with
*
* @param aIDPParams
* (object) parameters of the IdP
*
* @param aCallback
* (function) callback to invoke on completion
* with first-positional parameter the error.
*/
_provisionIdentity: function _provisionIdentity(aIdentity, aIDPParams, aProvId, aCallback) {
let provPath = aIDPParams.idpParams.provisioning;
let url = Services.io.newURI("https://" + aIDPParams.domain, null, null).resolve(provPath);
log("_provisionIdentity: identity:", aIdentity, "url:", url);
// If aProvId is not null, then we already have a flow
// with a sandbox. Otherwise, get a sandbox and create a
// new provision flow.
if (aProvId) {
// Re-use an existing sandbox
log("_provisionIdentity: re-using sandbox in provisioning flow with id:", aProvId);
this._provisionFlows[aProvId].provisioningSandbox.reload();
} else {
this._createProvisioningSandbox(url, function createdSandbox(aSandbox) {
// create a provisioning flow, using the sandbox id, and
// stash callback associated with this provisioning workflow.
let provId = aSandbox.id;
this._provisionFlows[provId] = {
identity: aIdentity,
idpParams: aIDPParams,
securityLevel: this.securityLevel,
provisioningSandbox: aSandbox,
callback: function doCallback(aErr) {
aCallback(aErr, provId);
},
};
log("_provisionIdentity: Created sandbox and provisioning flow with id:", provId);
// XXX bug 769862 - provisioning flow should timeout after N seconds
}.bind(this));
}
},
// DOM Methods
/**
* the provisioning iframe sandbox has called navigator.id.beginProvisioning()
*
* @param aCaller
* (object) the iframe sandbox caller with all callbacks and
* other information. Callbacks include:
* - doBeginProvisioningCallback(id, duration_s)
* - doGenKeyPairCallback(pk)
*/
beginProvisioning: function beginProvisioning(aCaller) {
log("beginProvisioning:", aCaller.id);
// Expect a flow for this caller already to be underway.
let provFlow = this.getProvisionFlow(aCaller.id, aCaller.doError);
// keep the caller object around
provFlow.caller = aCaller;
let identity = provFlow.identity;
let frame = provFlow.provisioningFrame;
// Determine recommended length of cert.
let duration = this.certDuration;
// Make a record that we have begun provisioning. This is required
// for genKeyPair.
provFlow.didBeginProvisioning = true;
// Let the sandbox know to invoke the callback to beginProvisioning with
// the identity and cert length.
return aCaller.doBeginProvisioningCallback(identity, duration);
},
/**
* the provisioning iframe sandbox has called
* navigator.id.raiseProvisioningFailure()
*
* @param aProvId
* (int) the identifier of the provisioning flow tied to that sandbox
* @param aReason
*/
raiseProvisioningFailure: function raiseProvisioningFailure(aProvId, aReason) {
reportError("Provisioning failure", aReason);
// look up the provisioning caller and its callback
let provFlow = this.getProvisionFlow(aProvId);
// Sandbox is deleted in _cleanUpProvisionFlow in case we re-use it.
// This may be either a "soft" or "hard" fail. If it's a
// soft fail, we'll flow through setAuthenticationFlow, where
// the provision flow data will be copied into a new auth
// flow. If it's a hard fail, then the callback will be
// responsible for cleaning up the now defunct provision flow.
// invoke the callback with an error.
provFlow.callback(aReason);
},
/**
* When navigator.id.genKeyPair is called from provisioning iframe sandbox.
* Generates a keypair for the current user being provisioned.
*
* @param aProvId
* (int) the identifier of the provisioning caller tied to that sandbox
*
* It is an error to call genKeypair without receiving the callback for
* the beginProvisioning() call first.
*/
genKeyPair: function genKeyPair(aProvId) {
// Look up the provisioning caller and make sure it's valid.
let provFlow = this.getProvisionFlow(aProvId);
if (!provFlow.didBeginProvisioning) {
let errStr = "ERROR: genKeyPair called before beginProvisioning";
log(errStr);
provFlow.callback(errStr);
return;
}
// Ok generate a keypair
jwcrypto.generateKeyPair(jwcrypto.ALGORITHMS.DS160, function gkpCb(err, kp) {
log("in gkp callback");
if (err) {
log("ERROR: genKeyPair:", err);
provFlow.callback(err);
return;
}
provFlow.kp = kp;
// Serialize the publicKey of the keypair and send it back to the
// sandbox.
log("genKeyPair: generated keypair for provisioning flow with id:", aProvId);
provFlow.caller.doGenKeyPairCallback(provFlow.kp.serializedPublicKey);
}.bind(this));
},
/**
* When navigator.id.registerCertificate is called from provisioning iframe
* sandbox.
*
* Sets the certificate for the user for which a certificate was requested
* via a preceding call to beginProvisioning (and genKeypair).
*
* @param aProvId
* (integer) the identifier of the provisioning caller tied to that
* sandbox
*
* @param aCert
* (String) A JWT representing the signed certificate for the user
* being provisioned, provided by the IdP.
*/
registerCertificate: function registerCertificate(aProvId, aCert) {
log("registerCertificate:", aProvId, aCert);
// look up provisioning caller, make sure it's valid.
let provFlow = this.getProvisionFlow(aProvId);
if (!provFlow.caller) {
reportError("registerCertificate", "No provision flow or caller");
return;
}
if (!provFlow.kp) {
let errStr = "Cannot register a certificate without a keypair";
reportError("registerCertificate", errStr);
provFlow.callback(errStr);
return;
}
// store the keypair and certificate just provided in IDStore.
this._store.addIdentity(provFlow.identity, provFlow.kp, aCert);
// Great success!
provFlow.callback(null);
// Clean up the flow.
this._cleanUpProvisionFlow(aProvId);
},
/**
* Begin the authentication process with an IdP
*
* @param aProvId
* (int) the identifier of the provisioning flow which failed
*
* @param aCallback
* (function) to invoke upon completion, with
* first-positional-param error.
*/
_doAuthentication: function _doAuthentication(aProvId, aIDPParams) {
log("_doAuthentication: provId:", aProvId, "idpParams:", aIDPParams);
// create an authentication caller and its identifier AuthId
// stash aIdentity, idpparams, and callback in it.
// extract authentication URL from idpParams
let authPath = aIDPParams.idpParams.authentication;
let authURI = Services.io.newURI("https://" + aIDPParams.domain, null, null).resolve(authPath);
// beginAuthenticationFlow causes the "identity-auth" topic to be
// observed. Since it's sending a notification to the DOM, there's
// no callback. We wait for the DOM to trigger the next phase of
// provisioning.
this._beginAuthenticationFlow(aProvId, authURI);
// either we bind the AuthID to the sandbox ourselves, or UX does that,
// in which case we need to tell UX the AuthId.
// Currently, the UX creates the UI and gets the AuthId from the window
// and sets is with setAuthenticationFlow
},
/**
* The authentication frame has called navigator.id.beginAuthentication
*
* IMPORTANT: the aCaller is *always* non-null, even if this is called from
* a regular content page. We have to make sure, on every DOM call, that
* aCaller is an expected authentication-flow identifier. If not, we throw
* an error or something.
*
* @param aCaller
* (object) the authentication caller
*
*/
beginAuthentication: function beginAuthentication(aCaller) {
log("beginAuthentication: caller id:", aCaller.id);
// Begin the authentication flow after having concluded a provisioning
// flow. The aCaller that the DOM gives us will have the same ID as
// the provisioning flow we just concluded. (see setAuthenticationFlow)
let authFlow = this._authenticationFlows[aCaller.id];
if (!authFlow) {
return aCaller.doError("beginAuthentication: no flow for caller id", aCaller.id);
}
authFlow.caller = aCaller;
let identity = this._provisionFlows[authFlow.provId].identity;
// tell the UI to start the authentication process
log("beginAuthentication: authFlow:", aCaller.id, "identity:", identity);
return authFlow.caller.doBeginAuthenticationCallback(identity);
},
/**
* The auth frame has called navigator.id.completeAuthentication
*
* @param aAuthId
* (int) the identifier of the authentication caller tied to that sandbox
*
*/
completeAuthentication: function completeAuthentication(aAuthId) {
log("completeAuthentication:", aAuthId);
// look up the AuthId caller, and get its callback.
let authFlow = this._authenticationFlows[aAuthId];
if (!authFlow) {
reportError("completeAuthentication", "No auth flow with id", aAuthId);
return;
}
let provId = authFlow.provId;
// delete caller
delete authFlow['caller'];
delete this._authenticationFlows[aAuthId];
let provFlow = this.getProvisionFlow(provId);
provFlow.didAuthentication = true;
let subject = {
rpId: provFlow.rpId,
identity: provFlow.identity,
};
Services.obs.notifyObservers({ wrappedJSObject: subject }, "identity-auth-complete", aAuthId);
},
/**
* The auth frame has called navigator.id.cancelAuthentication
*
* @param aAuthId
* (int) the identifier of the authentication caller
*
*/
cancelAuthentication: function cancelAuthentication(aAuthId) {
log("cancelAuthentication:", aAuthId);
// look up the AuthId caller, and get its callback.
let authFlow = this._authenticationFlows[aAuthId];
if (!authFlow) {
reportError("cancelAuthentication", "No auth flow with id:", aAuthId);
return;
}
let provId = authFlow.provId;
// delete caller
delete authFlow['caller'];
delete this._authenticationFlows[aAuthId];
let provFlow = this.getProvisionFlow(provId);
provFlow.didAuthentication = true;
Services.obs.notifyObservers(null, "identity-auth-complete", aAuthId);
// invoke callback with ERROR.
let errStr = "Authentication canceled by IDP";
log("ERROR: cancelAuthentication:", errStr);
provFlow.callback(errStr);
},
/**
* Called by the UI to set the ID and caller for the authentication flow after it gets its ID
*/
setAuthenticationFlow: function(aAuthId, aProvId) {
// this is the transition point between the two flows,
// provision and authenticate. We tell the auth flow which
// provisioning flow it is started from.
log("setAuthenticationFlow: authId:", aAuthId, "provId:", aProvId);
this._authenticationFlows[aAuthId] = { provId: aProvId };
this._provisionFlows[aProvId].authId = aAuthId;
},
/**
* Load the provisioning URL in a hidden frame to start the provisioning
* process.
*/
_createProvisioningSandbox: function _createProvisioningSandbox(aURL, aCallback) {
log("_createProvisioningSandbox:", aURL);
if (!this._sandboxConfigured) {
// Configure message manager listening on the hidden window
Cu.import("resource://gre/modules/DOMIdentity.jsm");
DOMIdentity._configureMessages(Services.appShell.hiddenDOMWindow, true);
this._sandboxConfigured = true;
}
new Sandbox(aURL, aCallback);
},
/**
* Load the authentication UI to start the authentication process.
*/
_beginAuthenticationFlow: function _beginAuthenticationFlow(aProvId, aURL) {
log("_beginAuthenticationFlow:", aProvId, aURL);
let propBag = {provId: aProvId};
Services.obs.notifyObservers({wrappedJSObject:propBag}, "identity-auth", aURL);
},
/**
* Clean up a provision flow and the authentication flow and sandbox
* that may be attached to it.
*/
_cleanUpProvisionFlow: function _cleanUpProvisionFlow(aProvId) {
log('_cleanUpProvisionFlow:', aProvId);
let prov = this._provisionFlows[aProvId];
// Clean up the sandbox, if there is one.
if (prov.provisioningSandbox) {
let sandbox = this._provisionFlows[aProvId]['provisioningSandbox'];
if (sandbox.free) {
log('_cleanUpProvisionFlow: freeing sandbox');
sandbox.free();
}
delete this._provisionFlows[aProvId]['provisioningSandbox'];
}
// Clean up a related authentication flow, if there is one.
if (this._authenticationFlows[prov.authId]) {
delete this._authenticationFlows[prov.authId];
}
// Finally delete the provision flow
delete this._provisionFlows[aProvId];
}
};
this.IdentityProvider = new IdentityProviderService();