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author | Ascrod <32915892+Ascrod@users.noreply.github.com> | 2019-04-18 20:35:10 -0400 |
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committer | Ascrod <32915892+Ascrod@users.noreply.github.com> | 2019-04-18 20:35:10 -0400 |
commit | af7e140d4ed8f5bc9a69da2f0338ad3cb1319dec (patch) | |
tree | 4aac6c4383fb9e279fccb13c65a4e44595fd4cf6 /services/fxaccounts/FxAccountsClient.jsm | |
parent | 40fc72376411587e7bf9985fb9545eca1c9aaa8e (diff) | |
parent | 51722cd4fecb5c8c79a302f2771cad71535df5ea (diff) | |
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Merge branch 'master' into default-pref
Diffstat (limited to 'services/fxaccounts/FxAccountsClient.jsm')
-rw-r--r-- | services/fxaccounts/FxAccountsClient.jsm | 623 |
1 files changed, 0 insertions, 623 deletions
diff --git a/services/fxaccounts/FxAccountsClient.jsm b/services/fxaccounts/FxAccountsClient.jsm deleted file mode 100644 index fbe8da2fe..000000000 --- a/services/fxaccounts/FxAccountsClient.jsm +++ /dev/null @@ -1,623 +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/. */ - -this.EXPORTED_SYMBOLS = ["FxAccountsClient"]; - -const {classes: Cc, interfaces: Ci, utils: Cu} = Components; - -Cu.import("resource://gre/modules/Log.jsm"); -Cu.import("resource://gre/modules/Promise.jsm"); -Cu.import("resource://gre/modules/Services.jsm"); -Cu.import("resource://services-common/utils.js"); -Cu.import("resource://services-common/hawkclient.js"); -Cu.import("resource://services-common/hawkrequest.js"); -Cu.import("resource://services-crypto/utils.js"); -Cu.import("resource://gre/modules/FxAccountsCommon.js"); -Cu.import("resource://gre/modules/Credentials.jsm"); - -const HOST_PREF = "identity.fxaccounts.auth.uri"; - -const SIGNIN = "/account/login"; -const SIGNUP = "/account/create"; - -this.FxAccountsClient = function(host = Services.prefs.getCharPref(HOST_PREF)) { - this.host = host; - - // The FxA auth server expects requests to certain endpoints to be authorized - // using Hawk. - this.hawk = new HawkClient(host); - this.hawk.observerPrefix = "FxA:hawk"; - - // Manage server backoff state. C.f. - // https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md#backoff-protocol - this.backoffError = null; -}; - -this.FxAccountsClient.prototype = { - - /** - * Return client clock offset, in milliseconds, as determined by hawk client. - * Provided because callers should not have to know about hawk - * implementation. - * - * The offset is the number of milliseconds that must be added to the client - * clock to make it equal to the server clock. For example, if the client is - * five minutes ahead of the server, the localtimeOffsetMsec will be -300000. - */ - get localtimeOffsetMsec() { - return this.hawk.localtimeOffsetMsec; - }, - - /* - * Return current time in milliseconds - * - * Not used by this module, but made available to the FxAccounts.jsm - * that uses this client. - */ - now: function() { - return this.hawk.now(); - }, - - /** - * Common code from signIn and signUp. - * - * @param path - * Request URL path. Can be /account/create or /account/login - * @param email - * The email address for the account (utf8) - * @param password - * The user's password - * @param [getKeys=false] - * If set to true the keyFetchToken will be retrieved - * @param [retryOK=true] - * If capitalization of the email is wrong and retryOK is set to true, - * we will retry with the suggested capitalization from the server - * @return Promise - * Returns a promise that resolves to an object: - * { - * authAt: authentication time for the session (seconds since epoch) - * email: the primary email for this account - * keyFetchToken: a key fetch token (hex) - * sessionToken: a session token (hex) - * uid: the user's unique ID (hex) - * unwrapBKey: used to unwrap kB, derived locally from the - * password (not revealed to the FxA server) - * verified (optional): flag indicating verification status of the - * email - * } - */ - _createSession: function(path, email, password, getKeys=false, - retryOK=true) { - return Credentials.setup(email, password).then((creds) => { - let data = { - authPW: CommonUtils.bytesAsHex(creds.authPW), - email: email, - }; - let keys = getKeys ? "?keys=true" : ""; - - return this._request(path + keys, "POST", null, data).then( - // Include the canonical capitalization of the email in the response so - // the caller can set its signed-in user state accordingly. - result => { - result.email = data.email; - result.unwrapBKey = CommonUtils.bytesAsHex(creds.unwrapBKey); - - return result; - }, - error => { - log.debug("Session creation failed", error); - // If the user entered an email with different capitalization from - // what's stored in the database (e.g., Greta.Garbo@gmail.COM as - // opposed to greta.garbo@gmail.com), the server will respond with a - // errno 120 (code 400) and the expected capitalization of the email. - // We retry with this email exactly once. If successful, we use the - // server's version of the email as the signed-in-user's email. This - // is necessary because the email also serves as salt; so we must be - // in agreement with the server on capitalization. - // - // API reference: - // https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md - if (ERRNO_INCORRECT_EMAIL_CASE === error.errno && retryOK) { - if (!error.email) { - log.error("Server returned errno 120 but did not provide email"); - throw error; - } - return this._createSession(path, error.email, password, getKeys, - false); - } - throw error; - } - ); - }); - }, - - /** - * Create a new Firefox Account and authenticate - * - * @param email - * The email address for the account (utf8) - * @param password - * The user's password - * @param [getKeys=false] - * If set to true the keyFetchToken will be retrieved - * @return Promise - * Returns a promise that resolves to an object: - * { - * uid: the user's unique ID (hex) - * sessionToken: a session token (hex) - * keyFetchToken: a key fetch token (hex), - * unwrapBKey: used to unwrap kB, derived locally from the - * password (not revealed to the FxA server) - * } - */ - signUp: function(email, password, getKeys=false) { - return this._createSession(SIGNUP, email, password, getKeys, - false /* no retry */); - }, - - /** - * Authenticate and create a new session with the Firefox Account API server - * - * @param email - * The email address for the account (utf8) - * @param password - * The user's password - * @param [getKeys=false] - * If set to true the keyFetchToken will be retrieved - * @return Promise - * Returns a promise that resolves to an object: - * { - * authAt: authentication time for the session (seconds since epoch) - * email: the primary email for this account - * keyFetchToken: a key fetch token (hex) - * sessionToken: a session token (hex) - * uid: the user's unique ID (hex) - * unwrapBKey: used to unwrap kB, derived locally from the - * password (not revealed to the FxA server) - * verified: flag indicating verification status of the email - * } - */ - signIn: function signIn(email, password, getKeys=false) { - return this._createSession(SIGNIN, email, password, getKeys, - true /* retry */); - }, - - /** - * Check the status of a session given a session token - * - * @param sessionTokenHex - * The session token encoded in hex - * @return Promise - * Resolves with a boolean indicating if the session is still valid - */ - sessionStatus: function (sessionTokenHex) { - return this._request("/session/status", "GET", - deriveHawkCredentials(sessionTokenHex, "sessionToken")).then( - () => Promise.resolve(true), - error => { - if (isInvalidTokenError(error)) { - return Promise.resolve(false); - } - throw error; - } - ); - }, - - /** - * Destroy the current session with the Firefox Account API server - * - * @param sessionTokenHex - * The session token encoded in hex - * @return Promise - */ - signOut: function (sessionTokenHex, options = {}) { - let path = "/session/destroy"; - if (options.service) { - path += "?service=" + encodeURIComponent(options.service); - } - return this._request(path, "POST", - deriveHawkCredentials(sessionTokenHex, "sessionToken")); - }, - - /** - * Check the verification status of the user's FxA email address - * - * @param sessionTokenHex - * The current session token encoded in hex - * @return Promise - */ - recoveryEmailStatus: function (sessionTokenHex, options = {}) { - let path = "/recovery_email/status"; - if (options.reason) { - path += "?reason=" + encodeURIComponent(options.reason); - } - - return this._request(path, "GET", - deriveHawkCredentials(sessionTokenHex, "sessionToken")); - }, - - /** - * Resend the verification email for the user - * - * @param sessionTokenHex - * The current token encoded in hex - * @return Promise - */ - resendVerificationEmail: function(sessionTokenHex) { - return this._request("/recovery_email/resend_code", "POST", - deriveHawkCredentials(sessionTokenHex, "sessionToken")); - }, - - /** - * Retrieve encryption keys - * - * @param keyFetchTokenHex - * A one-time use key fetch token encoded in hex - * @return Promise - * Returns a promise that resolves to an object: - * { - * kA: an encryption key for recevorable data (bytes) - * wrapKB: an encryption key that requires knowledge of the - * user's password (bytes) - * } - */ - accountKeys: function (keyFetchTokenHex) { - let creds = deriveHawkCredentials(keyFetchTokenHex, "keyFetchToken"); - let keyRequestKey = creds.extra.slice(0, 32); - let morecreds = CryptoUtils.hkdf(keyRequestKey, undefined, - Credentials.keyWord("account/keys"), 3 * 32); - let respHMACKey = morecreds.slice(0, 32); - let respXORKey = morecreds.slice(32, 96); - - return this._request("/account/keys", "GET", creds).then(resp => { - if (!resp.bundle) { - throw new Error("failed to retrieve keys"); - } - - let bundle = CommonUtils.hexToBytes(resp.bundle); - let mac = bundle.slice(-32); - - let hasher = CryptoUtils.makeHMACHasher(Ci.nsICryptoHMAC.SHA256, - CryptoUtils.makeHMACKey(respHMACKey)); - - let bundleMAC = CryptoUtils.digestBytes(bundle.slice(0, -32), hasher); - if (mac !== bundleMAC) { - throw new Error("error unbundling encryption keys"); - } - - let keyAWrapB = CryptoUtils.xor(respXORKey, bundle.slice(0, 64)); - - return { - kA: keyAWrapB.slice(0, 32), - wrapKB: keyAWrapB.slice(32) - }; - }); - }, - - /** - * Sends a public key to the FxA API server and returns a signed certificate - * - * @param sessionTokenHex - * The current session token encoded in hex - * @param serializedPublicKey - * A public key (usually generated by jwcrypto) - * @param lifetime - * The lifetime of the certificate - * @return Promise - * Returns a promise that resolves to the signed certificate. - * The certificate can be used to generate a Persona assertion. - * @throws a new Error - * wrapping any of these HTTP code/errno pairs: - * https://github.com/mozilla/fxa-auth-server/blob/master/docs/api.md#response-12 - */ - signCertificate: function (sessionTokenHex, serializedPublicKey, lifetime) { - let creds = deriveHawkCredentials(sessionTokenHex, "sessionToken"); - - let body = { publicKey: serializedPublicKey, - duration: lifetime }; - return Promise.resolve() - .then(_ => this._request("/certificate/sign", "POST", creds, body)) - .then(resp => resp.cert, - err => { - log.error("HAWK.signCertificate error: " + JSON.stringify(err)); - throw err; - }); - }, - - /** - * Determine if an account exists - * - * @param email - * The email address to check - * @return Promise - * The promise resolves to true if the account exists, or false - * if it doesn't. The promise is rejected on other errors. - */ - accountExists: function (email) { - return this.signIn(email, "").then( - (cantHappen) => { - throw new Error("How did I sign in with an empty password?"); - }, - (expectedError) => { - switch (expectedError.errno) { - case ERRNO_ACCOUNT_DOES_NOT_EXIST: - return false; - break; - case ERRNO_INCORRECT_PASSWORD: - return true; - break; - default: - // not so expected, any more ... - throw expectedError; - break; - } - } - ); - }, - - /** - * Given the uid of an existing account (not an arbitrary email), ask - * the server if it still exists via /account/status. - * - * Used for differentiating between password change and account deletion. - */ - accountStatus: function(uid) { - return this._request("/account/status?uid="+uid, "GET").then( - (result) => { - return result.exists; - }, - (error) => { - log.error("accountStatus failed with: " + error); - return Promise.reject(error); - } - ); - }, - - /** - * Register a new device - * - * @method registerDevice - * @param sessionTokenHex - * Session token obtained from signIn - * @param name - * Device name - * @param type - * Device type (mobile|desktop) - * @param [options] - * Extra device options - * @param [options.pushCallback] - * `pushCallback` push endpoint callback - * @param [options.pushPublicKey] - * `pushPublicKey` push public key (URLSafe Base64 string) - * @param [options.pushAuthKey] - * `pushAuthKey` push auth secret (URLSafe Base64 string) - * @return Promise - * Resolves to an object: - * { - * id: Device identifier - * createdAt: Creation time (milliseconds since epoch) - * name: Name of device - * type: Type of device (mobile|desktop) - * } - */ - registerDevice(sessionTokenHex, name, type, options = {}) { - let path = "/account/device"; - - let creds = deriveHawkCredentials(sessionTokenHex, "sessionToken"); - let body = { name, type }; - - if (options.pushCallback) { - body.pushCallback = options.pushCallback; - } - if (options.pushPublicKey && options.pushAuthKey) { - body.pushPublicKey = options.pushPublicKey; - body.pushAuthKey = options.pushAuthKey; - } - - return this._request(path, "POST", creds, body); - }, - - /** - * Sends a message to other devices. Must conform with the push payload schema: - * https://github.com/mozilla/fxa-auth-server/blob/master/docs/pushpayloads.schema.json - * - * @method notifyDevice - * @param sessionTokenHex - * Session token obtained from signIn - * @param deviceIds - * Devices to send the message to - * @param payload - * Data to send with the message - * @return Promise - * Resolves to an empty object: - * {} - */ - notifyDevices(sessionTokenHex, deviceIds, payload, TTL = 0) { - const body = { - to: deviceIds, - payload, - TTL - }; - return this._request("/account/devices/notify", "POST", - deriveHawkCredentials(sessionTokenHex, "sessionToken"), body); - }, - - /** - * Update the session or name for an existing device - * - * @method updateDevice - * @param sessionTokenHex - * Session token obtained from signIn - * @param id - * Device identifier - * @param name - * Device name - * @param [options] - * Extra device options - * @param [options.pushCallback] - * `pushCallback` push endpoint callback - * @param [options.pushPublicKey] - * `pushPublicKey` push public key (URLSafe Base64 string) - * @param [options.pushAuthKey] - * `pushAuthKey` push auth secret (URLSafe Base64 string) - * @return Promise - * Resolves to an object: - * { - * id: Device identifier - * name: Device name - * } - */ - updateDevice(sessionTokenHex, id, name, options = {}) { - let path = "/account/device"; - - let creds = deriveHawkCredentials(sessionTokenHex, "sessionToken"); - let body = { id, name }; - if (options.pushCallback) { - body.pushCallback = options.pushCallback; - } - if (options.pushPublicKey && options.pushAuthKey) { - body.pushPublicKey = options.pushPublicKey; - body.pushAuthKey = options.pushAuthKey; - } - - return this._request(path, "POST", creds, body); - }, - - /** - * Delete a device and its associated session token, signing the user - * out of the server. - * - * @method signOutAndDestroyDevice - * @param sessionTokenHex - * Session token obtained from signIn - * @param id - * Device identifier - * @param [options] - * Options object - * @param [options.service] - * `service` query parameter - * @return Promise - * Resolves to an empty object: - * {} - */ - signOutAndDestroyDevice(sessionTokenHex, id, options = {}) { - let path = "/account/device/destroy"; - - if (options.service) { - path += "?service=" + encodeURIComponent(options.service); - } - - let creds = deriveHawkCredentials(sessionTokenHex, "sessionToken"); - let body = { id }; - - return this._request(path, "POST", creds, body); - }, - - /** - * Get a list of currently registered devices - * - * @method getDeviceList - * @param sessionTokenHex - * Session token obtained from signIn - * @return Promise - * Resolves to an array of objects: - * [ - * { - * id: Device id - * isCurrentDevice: Boolean indicating whether the item - * represents the current device - * name: Device name - * type: Device type (mobile|desktop) - * }, - * ... - * ] - */ - getDeviceList(sessionTokenHex) { - let path = "/account/devices"; - let creds = deriveHawkCredentials(sessionTokenHex, "sessionToken"); - - return this._request(path, "GET", creds, {}); - }, - - _clearBackoff: function() { - this.backoffError = null; - }, - - /** - * A general method for sending raw API calls to the FxA auth server. - * All request bodies and responses are JSON. - * - * @param path - * API endpoint path - * @param method - * The HTTP request method - * @param credentials - * Hawk credentials - * @param jsonPayload - * A JSON payload - * @return Promise - * Returns a promise that resolves to the JSON response of the API call, - * or is rejected with an error. Error responses have the following properties: - * { - * "code": 400, // matches the HTTP status code - * "errno": 107, // stable application-level error number - * "error": "Bad Request", // string description of the error type - * "message": "the value of salt is not allowed to be undefined", - * "info": "https://docs.dev.lcip.og/errors/1234" // link to more info on the error - * } - */ - _request: function hawkRequest(path, method, credentials, jsonPayload) { - let deferred = Promise.defer(); - - // We were asked to back off. - if (this.backoffError) { - log.debug("Received new request during backoff, re-rejecting."); - deferred.reject(this.backoffError); - return deferred.promise; - } - - this.hawk.request(path, method, credentials, jsonPayload).then( - (response) => { - try { - let responseObj = JSON.parse(response.body); - deferred.resolve(responseObj); - } catch (err) { - log.error("json parse error on response: " + response.body); - deferred.reject({error: err}); - } - }, - - (error) => { - log.error("error " + method + "ing " + path + ": " + JSON.stringify(error)); - if (error.retryAfter) { - log.debug("Received backoff response; caching error as flag."); - this.backoffError = error; - // Schedule clearing of cached-error-as-flag. - CommonUtils.namedTimer( - this._clearBackoff, - error.retryAfter * 1000, - this, - "fxaBackoffTimer" - ); - } - deferred.reject(error); - } - ); - - return deferred.promise; - }, -}; - -function isInvalidTokenError(error) { - if (error.code != 401) { - return false; - } - switch (error.errno) { - case ERRNO_INVALID_AUTH_TOKEN: - case ERRNO_INVALID_AUTH_TIMESTAMP: - case ERRNO_INVALID_AUTH_NONCE: - return true; - } - return false; -} |