Registration Tokens
Note: This API is disabled when MSC3861 is enabled. See #15582
This API allows you to manage tokens which can be used to authenticate
registration requests, as proposed in
MSC3231
and stabilised in version 1.2 of the Matrix specification.
To use it, you will need to enable the registration_requires_token
config
option, and authenticate by providing an access_token
for a server admin:
see Admin API.
Registration token objects
Most endpoints make use of JSON objects that contain details about tokens. These objects have the following fields:
token
: The token which can be used to authenticate registration.uses_allowed
: The number of times the token can be used to complete a registration before it becomes invalid.pending
: The number of pending uses the token has. When someone uses the token to authenticate themselves, the pending counter is incremented so that the token is not used more than the permitted number of times. When the person completes registration the pending counter is decremented, and the completed counter is incremented.completed
: The number of times the token has been used to successfully complete a registration.expiry_time
: The latest time the token is valid. Given as the number of milliseconds since 1970-01-01 00:00:00 UTC (the start of the Unix epoch). To convert this into a human-readable form you can remove the milliseconds and use thedate
command. For example,date -d '@1625394937'
.
List all tokens
Lists all tokens and details about them. If the request is successful, the top
level JSON object will have a registration_tokens
key which is an array of
registration token objects.
GET /_synapse/admin/v1/registration_tokens
Optional query parameters:
valid
:true
orfalse
. Iftrue
, only valid tokens are returned. Iffalse
, only tokens that have expired or have had all uses exhausted are returned. If omitted, all tokens are returned regardless of validity.
Example:
GET /_synapse/admin/v1/registration_tokens
200 OK
{
"registration_tokens": [
{
"token": "abcd",
"uses_allowed": 3,
"pending": 0,
"completed": 1,
"expiry_time": null
},
{
"token": "pqrs",
"uses_allowed": 2,
"pending": 1,
"completed": 1,
"expiry_time": null
},
{
"token": "wxyz",
"uses_allowed": null,
"pending": 0,
"completed": 9,
"expiry_time": 1625394937000 // 2021-07-04 10:35:37 UTC
}
]
}
Example using the valid
query parameter:
GET /_synapse/admin/v1/registration_tokens?valid=false
200 OK
{
"registration_tokens": [
{
"token": "pqrs",
"uses_allowed": 2,
"pending": 1,
"completed": 1,
"expiry_time": null
},
{
"token": "wxyz",
"uses_allowed": null,
"pending": 0,
"completed": 9,
"expiry_time": 1625394937000 // 2021-07-04 10:35:37 UTC
}
]
}
Get one token
Get details about a single token. If the request is successful, the response body will be a registration token object.
GET /_synapse/admin/v1/registration_tokens/<token>
Path parameters:
token
: The registration token to return details of.
Example:
GET /_synapse/admin/v1/registration_tokens/abcd
200 OK
{
"token": "abcd",
"uses_allowed": 3,
"pending": 0,
"completed": 1,
"expiry_time": null
}
Create token
Create a new registration token. If the request is successful, the newly created token will be returned as a registration token object in the response body.
POST /_synapse/admin/v1/registration_tokens/new
The request body must be a JSON object and can contain the following fields:
token
: The registration token. A string of no more than 64 characters that consists only of characters matched by the regex[A-Za-z0-9._~-]
. Default: randomly generated.uses_allowed
: The integer number of times the token can be used to complete a registration before it becomes invalid. Default:null
(unlimited uses).expiry_time
: The latest time the token is valid. Given as the number of milliseconds since 1970-01-01 00:00:00 UTC (the start of the Unix epoch). You could use, for example,date '+%s000' -d 'tomorrow'
. Default:null
(token does not expire).length
: The length of the token randomly generated iftoken
is not specified. Must be between 1 and 64 inclusive. Default:16
.
If a field is omitted the default is used.
Example using defaults:
POST /_synapse/admin/v1/registration_tokens/new
{}
200 OK
{
"token": "0M-9jbkf2t_Tgiw1",
"uses_allowed": null,
"pending": 0,
"completed": 0,
"expiry_time": null
}
Example specifying some fields:
POST /_synapse/admin/v1/registration_tokens/new
{
"token": "defg",
"uses_allowed": 1
}
200 OK
{
"token": "defg",
"uses_allowed": 1,
"pending": 0,
"completed": 0,
"expiry_time": null
}
Update token
Update the number of allowed uses or expiry time of a token. If the request is successful, the updated token will be returned as a registration token object in the response body.
PUT /_synapse/admin/v1/registration_tokens/<token>
Path parameters:
token
: The registration token to update.
The request body must be a JSON object and can contain the following fields:
uses_allowed
: The integer number of times the token can be used to complete a registration before it becomes invalid. By settinguses_allowed
to0
the token can be easily made invalid without deleting it. Ifnull
the token will have an unlimited number of uses.expiry_time
: The latest time the token is valid. Given as the number of milliseconds since 1970-01-01 00:00:00 UTC (the start of the Unix epoch). Ifnull
the token will not expire.
If a field is omitted its value is not modified.
Example:
PUT /_synapse/admin/v1/registration_tokens/defg
{
"expiry_time": 4781243146000 // 2121-07-06 11:05:46 UTC
}
200 OK
{
"token": "defg",
"uses_allowed": 1,
"pending": 0,
"completed": 0,
"expiry_time": 4781243146000
}
Delete token
Delete a registration token. If the request is successful, the response body will be an empty JSON object.
DELETE /_synapse/admin/v1/registration_tokens/<token>
Path parameters:
token
: The registration token to delete.
Example:
DELETE /_synapse/admin/v1/registration_tokens/wxyz
200 OK
{}
Errors
If a request fails a "standard error response" will be returned as defined in the Matrix Client-Server API specification.
For example, if the token specified in a path parameter does not exist a
404 Not Found
error will be returned.
GET /_synapse/admin/v1/registration_tokens/1234
404 Not Found
{
"errcode": "M_NOT_FOUND",
"error": "No such registration token: 1234"
}