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66 lines
2 KiB
ReStructuredText
66 lines
2 KiB
ReStructuredText
Shared-Secret Registration
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==========================
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This API allows for the creation of users in an administrative and
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non-interactive way. This is generally used for bootstrapping a Synapse
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instance with administrator accounts.
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To authenticate yourself to the server, you will need both the shared secret
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(``registration_shared_secret`` in the homeserver configuration), and a
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one-time nonce. If the registration shared secret is not configured, this API
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is not enabled.
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To fetch the nonce, you need to request one from the API::
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> GET /_synapse/admin/v1/register
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< {"nonce": "thisisanonce"}
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Once you have the nonce, you can make a ``POST`` to the same URL with a JSON
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body containing the nonce, username, password, whether they are an admin
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(optional, False by default), and a HMAC digest of the content.
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As an example::
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> POST /_synapse/admin/v1/register
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> {
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"nonce": "thisisanonce",
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"username": "pepper_roni",
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"password": "pizza",
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"admin": true,
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"mac": "mac_digest_here"
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}
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< {
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"access_token": "token_here",
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"user_id": "@pepper_roni:localhost",
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"home_server": "test",
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"device_id": "device_id_here"
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}
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The MAC is the hex digest output of the HMAC-SHA1 algorithm, with the key being
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the shared secret and the content being the nonce, user, password, either the
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string "admin" or "notadmin", and optionally the user_type
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each separated by NULs. For an example of generation in Python::
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import hmac, hashlib
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def generate_mac(nonce, user, password, admin=False, user_type=None):
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mac = hmac.new(
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key=shared_secret,
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digestmod=hashlib.sha1,
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)
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mac.update(nonce.encode('utf8'))
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mac.update(b"\x00")
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mac.update(user.encode('utf8'))
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mac.update(b"\x00")
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mac.update(password.encode('utf8'))
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mac.update(b"\x00")
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mac.update(b"admin" if admin else b"notadmin")
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if user_type:
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mac.update(b"\x00")
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mac.update(user_type.encode('utf8'))
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return mac.hexdigest()
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