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Reörder the specification sections, to move 'Registration and Login' first, where it logically belongs
This commit is contained in:
Paul "LeoNerd" Evans
parent
ae953b0884
commit
3ee9a67aa4
1 changed files with 316 additions and 315 deletions
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@ -260,7 +260,7 @@ For the default HTTP transport, all API calls use a Content-Type of
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``application/json``. In addition, all strings MUST be encoded as UTF-8.
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Clients are authenticated using opaque ``access_token`` strings (see
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`Registration and Login`_ for details), passed as a querystring parameter on
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`Registration and Login`_ for details), passed as a query string parameter on
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all requests.
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.. TODO
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@ -375,6 +375,321 @@ When the client first logs in, they will need to initially synchronise with
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their home server. This is achieved via the |initialSync|_ API. This API also
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returns an ``end`` token which can be used with the event stream.
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Registration and login
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======================
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Clients must register with a home server in order to use Matrix. After
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registering, the client will be given an access token which must be used in ALL
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requests to that home server as a query parameter 'access_token'.
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If the client has already registered, they need to be able to login to their
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account. The home server may provide many different ways of logging in, such as
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user/password auth, login via a social network (OAuth2), login by confirming a
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token sent to their email address, etc. This specification does not define how
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home servers should authorise their users who want to login to their existing
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accounts, but instead defines the standard interface which implementations
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should follow so that ANY client can login to ANY home server. Clients login
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using the |login|_ API. Clients register using the |register|_ API.
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Registration follows the same procedure as login, but the path requests are
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sent to are different.
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The registration/login process breaks down into the following:
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1. Determine the requirements for logging in.
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2. Submit the login stage credentials.
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3. Get credentials or be told the next stage in the login process and repeat
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step 2.
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As each home server may have different ways of logging in, the client needs to
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know how they should login. All distinct login stages MUST have a corresponding
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``type``. A ``type`` is a namespaced string which details the mechanism for
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logging in.
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A client may be able to login via multiple valid login flows, and should choose
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a single flow when logging in. A flow is a series of login stages. The home
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server MUST respond with all the valid login flows when requested::
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The client can login via 3 paths: 1a and 1b, 2a and 2b, or 3. The client should
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select one of these paths.
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{
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"flows": [
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{
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"type": "<login type1a>",
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"stages": [ "<login type 1a>", "<login type 1b>" ]
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},
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{
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"type": "<login type2a>",
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"stages": [ "<login type 2a>", "<login type 2b>" ]
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},
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{
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"type": "<login type3>"
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}
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]
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}
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After the login is completed, the client's fully-qualified user ID and a new
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access token MUST be returned::
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{
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"user_id": "@user:matrix.org",
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"access_token": "abcdef0123456789"
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}
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The ``user_id`` key is particularly useful if the home server wishes to support
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localpart entry of usernames (e.g. "user" rather than "@user:matrix.org"), as
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the client may not be able to determine its ``user_id`` in this case.
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If a login has multiple requests, the home server may wish to create a session.
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If a home server responds with a 'session' key to a request, clients MUST
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submit it in subsequent requests until the login is completed::
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{
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"session": "<session id>"
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}
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This specification defines the following login types:
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- ``m.login.password``
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- ``m.login.oauth2``
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- ``m.login.email.code``
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- ``m.login.email.url``
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- ``m.login.email.identity``
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Password-based
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--------------
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:Type:
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``m.login.password``
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:Description:
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Login is supported via a username and password.
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To respond to this type, reply with::
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{
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"type": "m.login.password",
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"user": "<user_id or user localpart>",
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"password": "<password>"
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}
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The home server MUST respond with either new credentials, the next stage of the
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login process, or a standard error response.
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OAuth2-based
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------------
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:Type:
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``m.login.oauth2``
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:Description:
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Login is supported via OAuth2 URLs. This login consists of multiple requests.
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To respond to this type, reply with::
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{
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"type": "m.login.oauth2",
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"user": "<user_id or user localpart>"
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}
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The server MUST respond with::
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{
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"uri": <Authorization Request URI OR service selection URI>
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}
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The home server acts as a 'confidential' client for the purposes of OAuth2. If
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the uri is a ``sevice selection URI``, it MUST point to a webpage which prompts
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the user to choose which service to authorize with. On selection of a service,
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this MUST link through to an ``Authorization Request URI``. If there is only 1
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service which the home server accepts when logging in, this indirection can be
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skipped and the "uri" key can be the ``Authorization Request URI``.
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The client then visits the ``Authorization Request URI``, which then shows the
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OAuth2 Allow/Deny prompt. Hitting 'Allow' returns the ``redirect URI`` with the
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auth code. Home servers can choose any path for the ``redirect URI``. The
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client should visit the ``redirect URI``, which will then finish the OAuth2
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login process, granting the home server an access token for the chosen service.
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When the home server gets this access token, it verifies that the cilent has
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authorised with the 3rd party, and can now complete the login. The OAuth2
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``redirect URI`` (with auth code) MUST respond with either new credentials, the
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next stage of the login process, or a standard error response.
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For example, if a home server accepts OAuth2 from Google, it would return the
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Authorization Request URI for Google::
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{
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"uri": "https://accounts.google.com/o/oauth2/auth?response_type=code&
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client_id=CLIENT_ID&redirect_uri=REDIRECT_URI&scope=photos"
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}
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The client then visits this URI and authorizes the home server. The client then
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visits the REDIRECT_URI with the auth code= query parameter which returns::
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{
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"user_id": "@user:matrix.org",
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"access_token": "0123456789abcdef"
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}
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Email-based (code)
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------------------
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:Type:
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``m.login.email.code``
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:Description:
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Login is supported by typing in a code which is sent in an email. This login
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consists of multiple requests.
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To respond to this type, reply with::
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{
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"type": "m.login.email.code",
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"user": "<user_id or user localpart>",
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"email": "<email address>"
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}
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After validating the email address, the home server MUST send an email
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containing an authentication code and return::
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{
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"type": "m.login.email.code",
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"session": "<session id>"
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}
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The second request in this login stage involves sending this authentication
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code::
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{
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"type": "m.login.email.code",
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"session": "<session id>",
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"code": "<code in email sent>"
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}
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The home server MUST respond to this with either new credentials, the next
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stage of the login process, or a standard error response.
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Email-based (url)
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-----------------
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:Type:
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``m.login.email.url``
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:Description:
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Login is supported by clicking on a URL in an email. This login consists of
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multiple requests.
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To respond to this type, reply with::
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{
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"type": "m.login.email.url",
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"user": "<user_id or user localpart>",
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"email": "<email address>"
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}
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After validating the email address, the home server MUST send an email
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containing an authentication URL and return::
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{
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"type": "m.login.email.url",
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"session": "<session id>"
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}
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The email contains a URL which must be clicked. After it has been clicked, the
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client should perform another request::
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{
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"type": "m.login.email.url",
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"session": "<session id>"
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}
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The home server MUST respond to this with either new credentials, the next
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stage of the login process, or a standard error response.
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A common client implementation will be to periodically poll until the link is
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clicked. If the link has not been visited yet, a standard error response with
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an errcode of ``M_LOGIN_EMAIL_URL_NOT_YET`` should be returned.
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Email-based (identity server)
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-----------------------------
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:Type:
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``m.login.email.identity``
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:Description:
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Login is supported by authorising an email address with an identity server.
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Prior to submitting this, the client should authenticate with an identity
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server. After authenticating, the session information should be submitted to
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the home server.
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To respond to this type, reply with::
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{
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"type": "m.login.email.identity",
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"threepidCreds": [
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{
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"sid": "<identity server session id>",
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"clientSecret": "<identity server client secret>",
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"idServer": "<url of identity server authed with, e.g. 'matrix.org:8090'>"
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}
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]
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}
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N-Factor Authentication
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-----------------------
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Multiple login stages can be combined to create N-factor authentication during
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login.
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This can be achieved by responding with the ``next`` login type on completion
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of a previous login stage::
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{
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"next": "<next login type>"
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}
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If a home server implements N-factor authentication, it MUST respond with all
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``stages`` when initially queried for their login requirements::
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{
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"type": "<1st login type>",
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"stages": [ <1st login type>, <2nd login type>, ... , <Nth login type> ]
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}
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This can be represented conceptually as::
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_______________________
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| Login Stage 1 |
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| type: "<login type1>" |
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| ___________________ |
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| |_Request_1_________| | <-- Returns "session" key which is used throughout.
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| ___________________ |
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| |_Request_2_________| | <-- Returns a "next" value of "login type2"
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|_______________________|
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|
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|
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_________V_____________
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| Login Stage 2 |
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| type: "<login type2>" |
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| ___________________ |
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| |_Request_1_________| |
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| ___________________ |
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| |_Request_2_________| |
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| ___________________ |
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| |_Request_3_________| | <-- Returns a "next" value of "login type3"
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|_______________________|
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|
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|
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_________V_____________
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| Login Stage 3 |
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| type: "<login type3>" |
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| ___________________ |
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| |_Request_1_________| | <-- Returns user credentials
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|_______________________|
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Fallback
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--------
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Clients cannot be expected to be able to know how to process every single login
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type. If a client determines it does not know how to handle a given login type,
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it should request a login fallback page::
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GET matrix/client/api/v1/login/fallback
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This MUST return an HTML page which can perform the entire login process.
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Rooms
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=====
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@ -1347,320 +1662,6 @@ numbers, website URLs, etc...). This specification puts no requirements on the
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display name other than it being a valid unicode string.
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Registration and login
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======================
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Clients must register with a home server in order to use Matrix. After
|
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registering, the client will be given an access token which must be used in ALL
|
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requests to that home server as a query parameter 'access_token'.
|
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|
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If the client has already registered, they need to be able to login to their
|
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account. The home server may provide many different ways of logging in, such as
|
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user/password auth, login via a social network (OAuth2), login by confirming a
|
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token sent to their email address, etc. This specification does not define how
|
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home servers should authorise their users who want to login to their existing
|
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accounts, but instead defines the standard interface which implementations
|
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should follow so that ANY client can login to ANY home server. Clients login
|
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using the |login|_ API. Clients register using the |register|_ API.
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Registration follows the same procedure as login, but the path requests are
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sent to are different.
|
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|
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The registration/login process breaks down into the following:
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1. Determine the requirements for logging in.
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2. Submit the login stage credentials.
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3. Get credentials or be told the next stage in the login process and repeat
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step 2.
|
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|
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As each home server may have different ways of logging in, the client needs to
|
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know how they should login. All distinct login stages MUST have a corresponding
|
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``type``. A ``type`` is a namespaced string which details the mechanism for
|
||||
logging in.
|
||||
|
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A client may be able to login via multiple valid login flows, and should choose
|
||||
a single flow when logging in. A flow is a series of login stages. The home
|
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server MUST respond with all the valid login flows when requested::
|
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|
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The client can login via 3 paths: 1a and 1b, 2a and 2b, or 3. The client should
|
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select one of these paths.
|
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|
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{
|
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"flows": [
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{
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"type": "<login type1a>",
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"stages": [ "<login type 1a>", "<login type 1b>" ]
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},
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{
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"type": "<login type2a>",
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"stages": [ "<login type 2a>", "<login type 2b>" ]
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},
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{
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"type": "<login type3>"
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}
|
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]
|
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}
|
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|
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After the login is completed, the client's fully-qualified user ID and a new
|
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access token MUST be returned::
|
||||
|
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{
|
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"user_id": "@user:matrix.org",
|
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"access_token": "abcdef0123456789"
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}
|
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|
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The ``user_id`` key is particularly useful if the home server wishes to support
|
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localpart entry of usernames (e.g. "user" rather than "@user:matrix.org"), as
|
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the client may not be able to determine its ``user_id`` in this case.
|
||||
|
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If a login has multiple requests, the home server may wish to create a session.
|
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If a home server responds with a 'session' key to a request, clients MUST
|
||||
submit it in subsequent requests until the login is completed::
|
||||
|
||||
{
|
||||
"session": "<session id>"
|
||||
}
|
||||
|
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This specification defines the following login types:
|
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- ``m.login.password``
|
||||
- ``m.login.oauth2``
|
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- ``m.login.email.code``
|
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- ``m.login.email.url``
|
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- ``m.login.email.identity``
|
||||
|
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Password-based
|
||||
--------------
|
||||
:Type:
|
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``m.login.password``
|
||||
:Description:
|
||||
Login is supported via a username and password.
|
||||
|
||||
To respond to this type, reply with::
|
||||
|
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{
|
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"type": "m.login.password",
|
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"user": "<user_id or user localpart>",
|
||||
"password": "<password>"
|
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}
|
||||
|
||||
The home server MUST respond with either new credentials, the next stage of the
|
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login process, or a standard error response.
|
||||
|
||||
OAuth2-based
|
||||
------------
|
||||
:Type:
|
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``m.login.oauth2``
|
||||
:Description:
|
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Login is supported via OAuth2 URLs. This login consists of multiple requests.
|
||||
|
||||
To respond to this type, reply with::
|
||||
|
||||
{
|
||||
"type": "m.login.oauth2",
|
||||
"user": "<user_id or user localpart>"
|
||||
}
|
||||
|
||||
The server MUST respond with::
|
||||
|
||||
{
|
||||
"uri": <Authorization Request URI OR service selection URI>
|
||||
}
|
||||
|
||||
The home server acts as a 'confidential' client for the purposes of OAuth2. If
|
||||
the uri is a ``sevice selection URI``, it MUST point to a webpage which prompts
|
||||
the user to choose which service to authorize with. On selection of a service,
|
||||
this MUST link through to an ``Authorization Request URI``. If there is only 1
|
||||
service which the home server accepts when logging in, this indirection can be
|
||||
skipped and the "uri" key can be the ``Authorization Request URI``.
|
||||
|
||||
The client then visits the ``Authorization Request URI``, which then shows the
|
||||
OAuth2 Allow/Deny prompt. Hitting 'Allow' returns the ``redirect URI`` with the
|
||||
auth code. Home servers can choose any path for the ``redirect URI``. The
|
||||
client should visit the ``redirect URI``, which will then finish the OAuth2
|
||||
login process, granting the home server an access token for the chosen service.
|
||||
When the home server gets this access token, it verifies that the cilent has
|
||||
authorised with the 3rd party, and can now complete the login. The OAuth2
|
||||
``redirect URI`` (with auth code) MUST respond with either new credentials, the
|
||||
next stage of the login process, or a standard error response.
|
||||
|
||||
For example, if a home server accepts OAuth2 from Google, it would return the
|
||||
Authorization Request URI for Google::
|
||||
|
||||
{
|
||||
"uri": "https://accounts.google.com/o/oauth2/auth?response_type=code&
|
||||
client_id=CLIENT_ID&redirect_uri=REDIRECT_URI&scope=photos"
|
||||
}
|
||||
|
||||
The client then visits this URI and authorizes the home server. The client then
|
||||
visits the REDIRECT_URI with the auth code= query parameter which returns::
|
||||
|
||||
{
|
||||
"user_id": "@user:matrix.org",
|
||||
"access_token": "0123456789abcdef"
|
||||
}
|
||||
|
||||
Email-based (code)
|
||||
------------------
|
||||
:Type:
|
||||
``m.login.email.code``
|
||||
:Description:
|
||||
Login is supported by typing in a code which is sent in an email. This login
|
||||
consists of multiple requests.
|
||||
|
||||
To respond to this type, reply with::
|
||||
|
||||
{
|
||||
"type": "m.login.email.code",
|
||||
"user": "<user_id or user localpart>",
|
||||
"email": "<email address>"
|
||||
}
|
||||
|
||||
After validating the email address, the home server MUST send an email
|
||||
containing an authentication code and return::
|
||||
|
||||
{
|
||||
"type": "m.login.email.code",
|
||||
"session": "<session id>"
|
||||
}
|
||||
|
||||
The second request in this login stage involves sending this authentication
|
||||
code::
|
||||
|
||||
{
|
||||
"type": "m.login.email.code",
|
||||
"session": "<session id>",
|
||||
"code": "<code in email sent>"
|
||||
}
|
||||
|
||||
The home server MUST respond to this with either new credentials, the next
|
||||
stage of the login process, or a standard error response.
|
||||
|
||||
Email-based (url)
|
||||
-----------------
|
||||
:Type:
|
||||
``m.login.email.url``
|
||||
:Description:
|
||||
Login is supported by clicking on a URL in an email. This login consists of
|
||||
multiple requests.
|
||||
|
||||
To respond to this type, reply with::
|
||||
|
||||
{
|
||||
"type": "m.login.email.url",
|
||||
"user": "<user_id or user localpart>",
|
||||
"email": "<email address>"
|
||||
}
|
||||
|
||||
After validating the email address, the home server MUST send an email
|
||||
containing an authentication URL and return::
|
||||
|
||||
{
|
||||
"type": "m.login.email.url",
|
||||
"session": "<session id>"
|
||||
}
|
||||
|
||||
The email contains a URL which must be clicked. After it has been clicked, the
|
||||
client should perform another request::
|
||||
|
||||
{
|
||||
"type": "m.login.email.url",
|
||||
"session": "<session id>"
|
||||
}
|
||||
|
||||
The home server MUST respond to this with either new credentials, the next
|
||||
stage of the login process, or a standard error response.
|
||||
|
||||
A common client implementation will be to periodically poll until the link is
|
||||
clicked. If the link has not been visited yet, a standard error response with
|
||||
an errcode of ``M_LOGIN_EMAIL_URL_NOT_YET`` should be returned.
|
||||
|
||||
|
||||
Email-based (identity server)
|
||||
-----------------------------
|
||||
:Type:
|
||||
``m.login.email.identity``
|
||||
:Description:
|
||||
Login is supported by authorising an email address with an identity server.
|
||||
|
||||
Prior to submitting this, the client should authenticate with an identity
|
||||
server. After authenticating, the session information should be submitted to
|
||||
the home server.
|
||||
|
||||
To respond to this type, reply with::
|
||||
|
||||
{
|
||||
"type": "m.login.email.identity",
|
||||
"threepidCreds": [
|
||||
{
|
||||
"sid": "<identity server session id>",
|
||||
"clientSecret": "<identity server client secret>",
|
||||
"idServer": "<url of identity server authed with, e.g. 'matrix.org:8090'>"
|
||||
}
|
||||
]
|
||||
}
|
||||
|
||||
|
||||
|
||||
N-Factor Authentication
|
||||
-----------------------
|
||||
Multiple login stages can be combined to create N-factor authentication during
|
||||
login.
|
||||
|
||||
This can be achieved by responding with the ``next`` login type on completion
|
||||
of a previous login stage::
|
||||
|
||||
{
|
||||
"next": "<next login type>"
|
||||
}
|
||||
|
||||
If a home server implements N-factor authentication, it MUST respond with all
|
||||
``stages`` when initially queried for their login requirements::
|
||||
|
||||
{
|
||||
"type": "<1st login type>",
|
||||
"stages": [ <1st login type>, <2nd login type>, ... , <Nth login type> ]
|
||||
}
|
||||
|
||||
This can be represented conceptually as::
|
||||
|
||||
_______________________
|
||||
| Login Stage 1 |
|
||||
| type: "<login type1>" |
|
||||
| ___________________ |
|
||||
| |_Request_1_________| | <-- Returns "session" key which is used throughout.
|
||||
| ___________________ |
|
||||
| |_Request_2_________| | <-- Returns a "next" value of "login type2"
|
||||
|_______________________|
|
||||
|
|
||||
|
|
||||
_________V_____________
|
||||
| Login Stage 2 |
|
||||
| type: "<login type2>" |
|
||||
| ___________________ |
|
||||
| |_Request_1_________| |
|
||||
| ___________________ |
|
||||
| |_Request_2_________| |
|
||||
| ___________________ |
|
||||
| |_Request_3_________| | <-- Returns a "next" value of "login type3"
|
||||
|_______________________|
|
||||
|
|
||||
|
|
||||
_________V_____________
|
||||
| Login Stage 3 |
|
||||
| type: "<login type3>" |
|
||||
| ___________________ |
|
||||
| |_Request_1_________| | <-- Returns user credentials
|
||||
|_______________________|
|
||||
|
||||
Fallback
|
||||
--------
|
||||
Clients cannot be expected to be able to know how to process every single login
|
||||
type. If a client determines it does not know how to handle a given login type,
|
||||
it should request a login fallback page::
|
||||
|
||||
GET matrix/client/api/v1/login/fallback
|
||||
|
||||
This MUST return an HTML page which can perform the entire login process.
|
||||
|
||||
Identity
|
||||
========
|
||||
.. NOTE::
|
||||
|
|
|
|||
Loading…
Reference in a new issue