Clarifications around third-party invites (#2083)

Signed-off-by: Kévin Commaille <zecakeh@tedomum.fr>
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Kévin Commaille 8 months ago committed by GitHub
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@ -0,0 +1,2 @@
Clarify the format of third-party invites, including the fact that identity
server public keys can be encoded using standard or URL-safe base64.

@ -0,0 +1 @@
Clarify that public keys can be encoded using standard or URL-safe base64.

@ -0,0 +1,2 @@
Clarify the format of third-party invites, including the fact that identity
server public keys can be encoded using standard or URL-safe base64.

@ -5,8 +5,8 @@ This module adds in support for inviting new members to a room where
their Matrix user ID is not known, instead addressing them by a third-party their Matrix user ID is not known, instead addressing them by a third-party
identifier such as an email address. There are two flows here; one identifier such as an email address. There are two flows here; one
if a Matrix user ID is known for the third-party identifier, and one if if a Matrix user ID is known for the third-party identifier, and one if
not. Either way, the client calls [`/invite`](#post_matrixclientv3roomsroomidinvite) with the details of the not. Either way, the client calls [`/invite`](#thirdparty_post_matrixclientv3roomsroomidinvite)
third-party identifier. with the details of the third-party identifier.
The homeserver asks the identity server whether a Matrix user ID is The homeserver asks the identity server whether a Matrix user ID is
known for that identifier: known for that identifier:
@ -37,10 +37,12 @@ A client asks a server to invite a user by their third-party identifier.
#### Server behaviour #### Server behaviour
Upon receipt of an [`/invite`](#post_matrixclientv3roomsroomidinvite), the server is expected to look up the Upon receipt of an [`/invite`](#thirdparty_post_matrixclientv3roomsroomidinvite),
third-party identifier with the provided identity server. If the lookup the server is expected to look up the third-party identifier with the provided
yields a result for a Matrix User ID then the normal invite process can identity server by making a call to [`/_matrix/identity/v2/lookup`](/identity-service-api/#post_matrixidentityv2lookup).
be initiated. This process ends up looking like this: If the lookup yields a result for a Matrix User ID then the normal [invite
process](/server-server-api/#inviting-to-a-room) can be initiated. This process
ends up looking like this:
``` ```
+---------+ +-------------+ +-----------------+ +---------+ +-------------+ +-----------------+
@ -66,10 +68,11 @@ be initiated. This process ends up looking like this:
| | | | | |
``` ```
However, if the lookup does not yield a bound User ID, the homeserver However, if the lookup does not yield a bound User ID, the homeserver must store
must store the invite on the identity server and emit a valid the invite on the identity server with a call to
`m.room.third_party_invite` event to the room. This process ends up [`/_matrix/identity/v2/store-invite`](/identity-service-api/#post_matrixidentityv2store-invite)
looking like this: and emit a valid [`m.room.third_party_invite`](#mroomthird_party_invite) event
to the room. This process ends up looking like this:
``` ```
+---------+ +-------------+ +-----------------+ +---------+ +-------------+ +-----------------+
@ -101,16 +104,19 @@ looking like this:
| | | | | |
``` ```
All homeservers MUST verify the signature in the event's The third-party user will then need to verify their identity, which results in a
request to [`/_matrix/federation/v1/3pid/onbind`](/server-server-api/#put_matrixfederationv13pidonbind)
from the identity server to the homeserver that bound the third-party identifier
to a user. The homeserver then exchanges the `m.room.third_party_invite` event
in the room for a complete [`m.room.member`](#mroommember) event with
`content.membership: invite` and a `content.third_party_invite` property for the
user that has bound the third-party identifier. If the invitee is on a different
homeserver than the inviting user, the invitee's homeserver makes a request to
[`/_matrix/federation/v1/exchange_third_party_invite/{roomId}`](/server-server-api/#put_matrixfederationv1exchange_third_party_inviteroomid).
All homeservers MUST verify the signature in the `m.room.member` event's
`content.third_party_invite.signed` object. `content.third_party_invite.signed` object.
The third-party user will then need to verify their identity, which
results in a call from the identity server to the homeserver that bound
the third-party identifier to a user. The homeserver then exchanges the
`m.room.third_party_invite` event in the room for a complete
`m.room.member` event for `membership: invite` for the user that has
bound the third-party identifier.
If a homeserver is joining a room for the first time because of an If a homeserver is joining a room for the first time because of an
`m.room.third_party_invite`, the server which is already participating `m.room.third_party_invite`, the server which is already participating
in the room (which is chosen as per the standard server-server in the room (which is chosen as per the standard server-server
@ -193,8 +199,8 @@ at any time - the completion is not shown in the diagram.
H1 MUST verify the request from H3 to ensure the `signed` property is H1 MUST verify the request from H3 to ensure the `signed` property is
correct as well as the `key_validity_url` as still being valid. This is correct as well as the `key_validity_url` as still being valid. This is
done by making a request to the [identity server done by making a request to the identity server's
/isvalid](/identity-service-api/#get_matrixidentityv2pubkeyisvalid) [`/pubkey/isvalid`](/identity-service-api/#get_matrixidentityv2pubkeyisvalid)
endpoint, using the provided URL rather than constructing a new one. The endpoint, using the provided URL rather than constructing a new one. The
query string and response for the provided URL must match the Identity query string and response for the provided URL must match the Identity
Service Specification. Service Specification.

@ -970,9 +970,8 @@ the event to other servers in the room.
## Third-party invites ## Third-party invites
{{% boxes/note %}} {{% boxes/note %}}
More information about third-party invites is available in the More information about third-party invites is available in the Client-Server API
[Client-Server API](/client-server-api) under under the [Third-party invites](/client-server-api/#third-party-invites) module.
the Third-party Invites module.
{{% /boxes/note %}} {{% /boxes/note %}}
When a user wants to invite another user in a room but doesn't know the When a user wants to invite another user in a room but doesn't know the
@ -985,38 +984,41 @@ API](/identity-service-api).
### Cases where an association exists for a third-party identifier ### Cases where an association exists for a third-party identifier
If the third-party identifier is already bound to a Matrix ID, a lookup If the third-party identifier is already bound to a Matrix ID, a [lookup
request on the identity server will return it. The invite is then request](/identity-service-api/#post_matrixidentityv2lookup) on the identity
processed by the inviting homeserver as a standard `m.room.member` server will return it. The invite is then processed by the inviting homeserver
invite event. This is the simplest case. as a [standard `m.room.member` invite event](#inviting-to-a-room). This is the
simplest case.
### Cases where an association doesn't exist for a third-party identifier ### Cases where an association doesn't exist for a third-party identifier
If the third-party identifier isn't bound to any Matrix ID, the inviting If the third-party identifier isn't bound to any Matrix ID, the inviting
homeserver will request the identity server to store an invite for this homeserver will request the identity server to [store an invite](/identity-service-api/#invitation-storage)
identifier and to deliver it to whoever binds it to its Matrix ID. It for this identifier and to deliver it to whoever binds it to its Matrix ID. It
will also send an `m.room.third_party_invite` event in the room to will also send an [`m.room.third_party_invite`](/client-server-api/#mroomthird_party_invite)
specify a display name, a token and public keys the identity server event in the room to specify a display name, a token and public keys the
provided as a response to the invite storage request. identity server provided as a response to the invite storage request.
When a third-party identifier with pending invites gets bound to a When a third-party identifier with pending invites gets bound to a Matrix ID,
Matrix ID, the identity server will send a POST request to the ID's the identity server will send a request to the [`/3pid/onbind`](#put_matrixfederationv13pidonbind)
homeserver as described in the [Invitation endpoint of the the ID's homeserver as described in the [Invitation
Storage](/identity-service-api#invitation-storage) Storage](/identity-service-api#invitation-storage) section of the Identity
section of the Identity Service API. Service API.
The following process applies for each invite sent by the identity The following process applies for each invite sent by the identity
server: server:
The invited homeserver will create an `m.room.member` invite event The invited homeserver will create an [`m.room.member`](/client-server-api/#mroommember)
containing a special `third_party_invite` section containing the token invite event containing a special `third_party_invite` section containing the
and a signed object, both provided by the identity server. token and a `signed` object, both provided by the identity server.
If the invited homeserver is in the room the invite came from, it can If the invited homeserver is in the room the invite came from, it can
auth the event and send it. auth the event and send it.
However, if the invited homeserver isn't in the room the invite came However, if the invited homeserver isn't in the room the invite came
from, it will need to request the room's homeserver to auth the event. from, it will need to request the inviting homeserver to auth the event
at the [`/exchange_third_party_invite`](#put_matrixfederationv1exchange_third_party_inviteroomid)
endpoint.
{{% http-api spec="server-server" api="third_party_invite" %}} {{% http-api spec="server-server" api="third_party_invite" %}}

@ -57,9 +57,6 @@ paths:
- A signature of the token, signed with the identity server's private key - A signature of the token, signed with the identity server's private key
- The matrix user ID who invited them to the room - The matrix user ID who invited them to the room
If a token is requested from the identity server, the homeserver will
append a `m.room.third_party_invite` event to the room.
operationId: inviteBy3PID operationId: inviteBy3PID
security: security:
- accessTokenQuery: [] - accessTokenQuery: []
@ -72,6 +69,8 @@ paths:
example: "!d41d8cd:matrix.org" example: "!d41d8cd:matrix.org"
schema: schema:
type: string type: string
format: mx-room-id
pattern: "^!"
requestBody: requestBody:
content: content:
application/json: application/json:
@ -90,7 +89,9 @@ paths:
value: {} value: {}
"403": "403":
description: |- description: |-
You do not have permission to invite the user to the room. A meaningful `errcode` and description error text will be returned. Example reasons for rejections are: You do not have permission to invite the user to the room. A
meaningful `errcode` and description error text will be returned.
Example reasons for rejections are:
- The invitee has been banned from the room. - The invitee has been banned from the room.
- The invitee is already a member of the room. - The invitee is already a member of the room.

@ -43,7 +43,8 @@ paths:
properties: properties:
public_key: public_key:
type: string type: string
description: Unpadded Base64 encoded public key. description: |-
[Unpadded Base64](/appendices/#unpadded-base64)-encoded public key.
required: required:
- public_key - public_key
examples: examples:
@ -74,7 +75,8 @@ paths:
- in: query - in: query
name: public_key name: public_key
required: true required: true
description: The unpadded base64-encoded public key to check. description: |-
The [unpadded Base64](/appendices/#unpadded-base64)-encoded public key to check.
example: VXuGitF39UH5iRfvbIknlvlAVKgD1BsLDMvBf0pmp7c example: VXuGitF39UH5iRfvbIknlvlAVKgD1BsLDMvBf0pmp7c
schema: schema:
type: string type: string
@ -105,7 +107,14 @@ paths:
- in: query - in: query
name: public_key name: public_key
required: true required: true
description: The unpadded base64-encoded public key to check. description: |-
The [unpadded Base64](/appendices/#unpadded-base64)-encoded public
key to check.
This MUST be the exact same encoded string returned in the response
of the [`/store-invite`](/identity-service-api/#post_matrixidentityv2store-invite)
endpoint, or found in the corresponding [`m.room.third_party_invite`](/client-server-api/#mroomthird_party_invite)
event, so it may use the standard or URL-safe alphabets.
example: VXuGitF39UH5iRfvbIknlvlAVKgD1BsLDMvBf0pmp7c example: VXuGitF39UH5iRfvbIknlvlAVKgD1BsLDMvBf0pmp7c
schema: schema:
type: string type: string

@ -42,7 +42,7 @@ paths:
(if present) from the request here. (if present) from the request here.
Also, the generated ephemeral public key will be listed as valid on Also, the generated ephemeral public key will be listed as valid on
requests to `/_matrix/identity/v2/pubkey/ephemeral/isvalid`. requests to [`/_matrix/identity/v2/pubkey/ephemeral/isvalid`](/identity-service-api/#get_matrixidentityv2pubkeyephemeralisvalid).
Currently, invites may only be issued for 3pids of the `email` medium. Currently, invites may only be issued for 3pids of the `email` medium.
@ -70,10 +70,14 @@ paths:
room_id: room_id:
type: string type: string
description: The Matrix room ID to which the user is invited description: The Matrix room ID to which the user is invited
format: mx-room-id
pattern: "^!"
example: "!something:example.org" example: "!something:example.org"
sender: sender:
type: string type: string
description: The Matrix user ID of the inviting user description: The Matrix user ID of the inviting user
format: mx-user-id
pattern: "^@"
example: "@bob:example.com" example: "@bob:example.com"
room_alias: room_alias:
type: string type: string
@ -81,12 +85,16 @@ paths:
The Matrix room alias for the room to which the user is The Matrix room alias for the room to which the user is
invited. This should be retrieved from the `m.room.canonical_alias` invited. This should be retrieved from the `m.room.canonical_alias`
state event. state event.
format: mx-room-alias
pattern: "^#"
example: "#somewhere:example.org" example: "#somewhere:example.org"
room_avatar_url: room_avatar_url:
type: string type: string
description: |- description: |-
The Content URI for the room to which the user is invited. This should The Content URI for the room to which the user is invited. This should
be retrieved from the `m.room.avatar` state event. be retrieved from the `m.room.avatar` state event.
format: mx-mxc-uri
pattern: "^mxc:\\/\\/"
example: mxc://example.org/s0meM3dia example: mxc://example.org/s0meM3dia
room_join_rules: room_join_rules:
type: string type: string
@ -108,6 +116,8 @@ paths:
type: string type: string
description: The Content URI for the avatar of the user ID initiating the description: The Content URI for the avatar of the user ID initiating the
invite. invite.
format: mx-mxc-uri
pattern: "^mxc:\\/\\/"
example: mxc://example.org/an0th3rM3dia example: mxc://example.org/an0th3rM3dia
room_type: room_type:
type: string type: string
@ -146,7 +156,7 @@ paths:
public_key: public_key:
type: string type: string
description: | description: |
The public key, encoded using [unpadded Base64](/appendices/#unpadded-base64). The public key, encoded using standard or URL-safe [unpadded Base64](/appendices/#unpadded-base64).
key_validity_url: key_validity_url:
type: string type: string
description: | description: |

@ -35,6 +35,8 @@ paths:
example: "!abc123:matrix.org" example: "!abc123:matrix.org"
schema: schema:
type: string type: string
format: mx-room-id
pattern: "^!"
requestBody: requestBody:
content: content:
application/json: application/json:
@ -50,16 +52,22 @@ paths:
description: |- description: |-
The room ID the event is for. Must match the ID given in The room ID the event is for. Must match the ID given in
the path. the path.
format: mx-room-id
pattern: "^!"
example: "!abc123:matrix.org" example: "!abc123:matrix.org"
sender: sender:
type: string type: string
description: |- description: |-
The user ID of the user who sent the original `m.room.third_party_invite` The user ID of the user who sent the original `m.room.third_party_invite`
event. event.
format: mx-user-id
pattern: "^@"
example: "@joe:matrix.org" example: "@joe:matrix.org"
state_key: state_key:
type: string type: string
description: The user ID of the invited user description: The user ID of the invited user
format: mx-user-id
pattern: "^@"
example: "@someone:example.org" example: "@someone:example.org"
content: content:
type: object type: object
@ -82,45 +90,7 @@ paths:
third-party identifier. third-party identifier.
example: alice example: alice
signed: signed:
type: object $ref: ../../event-schemas/schema/components/signed_third_party_invite.yaml
description: |-
A block of content which has been signed, which servers can use to
verify the event.
title: Invite Signatures
properties:
signatures:
type: object
title: Signatures
additionalProperties:
type: object
additionalProperties:
type: string
description: |-
The server signatures for this event.
The signature is calculated using the process
described at [Signing JSON](/appendices/#signing-json).
example:
magic.forest:
ed25519:3: fQpGIW1Snz+pwLZu6sTy2aHy/DYWWTspTJRPyNp0PKkymfIsNffysMl6ObMMFdIJhk6g6pwlIqZ54rxo8SLmAg
mxid:
type: string
description: The invited matrix user ID
example: "@alice:localhost"
token:
type: string
description: The token used to verify the event
example: abc123
required:
- signatures
- mxid
- token
example:
mxid: "@alice:localhost"
token: abc123
signatures:
magic.forest:
ed25519:3: fQpGIW1Snz+pwLZu6sTy2aHy/DYWWTspTJRPyNp0PKkymfIsNffysMl6ObMMFdIJhk6g6pwlIqZ54rxo8SLmAg
required: required:
- display_name - display_name
- signed - signed
@ -215,6 +185,8 @@ paths:
mxid: mxid:
type: string type: string
description: The user that is now bound to the third-party identifier. description: The user that is now bound to the third-party identifier.
format: mx-user-id
pattern: "^@"
example: "@alice:matrix.org" example: "@alice:matrix.org"
invites: invites:
type: array type: array
@ -237,59 +209,23 @@ paths:
mxid: mxid:
type: string type: string
description: The now-bound user ID that received the invite. description: The now-bound user ID that received the invite.
format: mx-user-id
pattern: "^@"
example: "@alice:matrix.org" example: "@alice:matrix.org"
room_id: room_id:
type: string type: string
description: The room ID the invite is valid for. description: The room ID the invite is valid for.
format: mx-room-id
pattern: "^!"
example: "!somewhere:example.org" example: "!somewhere:example.org"
sender: sender:
type: string type: string
description: The user ID that sent the invite. description: The user ID that sent the invite.
format: mx-user-id
pattern: "^@"
example: "@bob:matrix.org" example: "@bob:matrix.org"
# TODO (TravisR): Make this reusable when doing IS spec changes
# also make sure it isn't lying about anything, like the key version
signed: signed:
type: object $ref: ../../event-schemas/schema/components/signed_third_party_invite.yaml
title: Identity Server Signatures
description: |-
Signature from the identity server using a long-term private
key.
properties:
mxid:
type: string
description: |-
The user ID that has been bound to the third-party
identifier.
example: "@alice:matrix.org"
token:
type: string
# TODO: What is this actually?
description: A token.
example: Hello World
signatures:
type: object
title: Identity Server Signature
description: |-
The signature from the identity server. The `string` key
is the identity server's domain name, such as vector.im
additionalProperties:
type: object
title: Identity Server Domain Signature
description: The signature for the identity server.
properties:
ed25519:0:
type: string
description: The signature.
example: SomeSignatureGoesHere
required:
- ed25519:0
example:
vector.im:
ed25519:0: SomeSignatureGoesHere
required:
- mxid
- token
- signatures
required: required:
- medium - medium
- address - address

@ -0,0 +1,45 @@
title: SignedThirdPartyInvite
description: |-
A block of content which has been signed by the identity server, which
homeservers can use to verify the event. Clients should ignore this.
type: object
properties:
mxid:
description: |-
The user ID that has been bound to the third-party identifier.
type: string
format: mx-user-id
pattern: "^@"
example: "@alice:example.org"
signatures:
title: IdentityServerSignatures
description: |-
The identity server signatures for this block. This is a map of identity
server name to signing key identifier to base64-encoded signature.
The signatures are calculated using the process described at
[Signing JSON](/appendices/#signing-json).
type: object
additionalProperties:
type: object
additionalProperties:
type: string
example: {
"magic.forest": {
"ed25519:3": "fQpGIW1Snz+pwLZu6sTy2aHy/DYWWTspTJRPyNp0PKkymfIsNffysMl6ObMMFdIJhk6g6pwlIqZ54rxo8SLmAg"
}
}
token:
description: |-
The token generated by the identity server at the
[`/store_invite`](/identity-service-api/#post_matrixidentityv2store-invite)
endpoint.
It matches the `state_key` of the corresponding [`m.room.third_party_invite`](/client-server-api/#mroomthird_party_invite)
event.
type: string
example: "abc123"
required:
- mxid
- signatures
- token

@ -2,17 +2,27 @@
allOf: allOf:
- $ref: core-event-schema/state_event.yaml - $ref: core-event-schema/state_event.yaml
description: |- description: |-
Adjusts the membership state for a user in a room. It is preferable to use the membership APIs (`/rooms/<room id>/invite` etc) when performing membership actions rather than adjusting the state directly as there are a restricted set of valid transformations. For example, user A cannot force user B to join a room, and trying to force this state change directly will fail. Adjusts the membership state for a user in a room. It is preferable to use the membership APIs
(`/rooms/<room id>/invite` etc) when performing membership actions rather than adjusting the
state directly as there are a restricted set of valid transformations. For example, user A cannot
force user B to join a room, and trying to force this state change directly will fail.
The following membership states are specified: The following membership states are specified:
- `invite` - The user has been invited to join a room, but has not yet joined it. They may not participate in the room until they join. - `invite` - The user has been invited to join a room, but has not yet joined it. They may not
- `join` - The user has joined the room (possibly after accepting an invite), and may participate in it. participate in the room until they join.
- `leave` - The user was once joined to the room, but has since left (possibly by choice, or possibly by being kicked). - `join` - The user has joined the room (possibly after accepting an invite), and may participate
- `ban` - The user has been banned from the room, and is no longer allowed to join it until they are un-banned from the room (by having their membership state set to a value other than `ban`). in it.
- `knock` - The user has knocked on the room, requesting permission to participate. They may not participate in the room until they join. - `leave` - The user was once joined to the room, but has since left (possibly by choice, or
possibly by being kicked).
- `ban` - The user has been banned from the room, and is no longer allowed to join it until they
are un-banned from the room (by having their membership state set to a value other than `ban`).
- `knock` - The user has knocked on the room, requesting permission to participate. They may not
participate in the room until they join.
The `third_party_invite` property will be set if this invite is an `invite` event and is the successor of an `m.room.third_party_invite` event, and absent otherwise. The `third_party_invite` property will be set if this invite is an `invite` event and is the
successor of an [`m.room.third_party_invite`](/client-server-api/#mroomthird_party_invite) event,
and absent otherwise.
This event may also include an `invite_room_state` key inside the event's `unsigned` data. This event may also include an `invite_room_state` key inside the event's `unsigned` data.
If present, this contains an array of [stripped state events](/client-server-api/#stripped-state) If present, this contains an array of [stripped state events](/client-server-api/#stripped-state)
@ -57,63 +67,54 @@ properties:
- ban - ban
type: string type: string
is_direct: is_direct:
description: Flag indicating if the room containing this event was created with the intention of being a direct chat. See [Direct Messaging](/client-server-api/#direct-messaging). description: |-
Flag indicating if the room containing this event was created with the intention of being
a direct chat. See [Direct Messaging](/client-server-api/#direct-messaging).
type: boolean type: boolean
join_authorised_via_users_server: join_authorised_via_users_server:
x-addedInMatrixVersion: "1.2" x-addedInMatrixVersion: "1.2"
type: string type: string
description: |- description: |-
Usually found on `join` events, this field is used to denote which homeserver (through representation of a user with sufficient power level) Usually found on `join` events, this field is used to denote which homeserver (through
authorised the user's join. More information about this field can be found in the [Restricted Rooms Specification](/client-server-api/#restricted-rooms). representation of a user with sufficient power level) authorised the user's join. More
information about this field can be found in the [Restricted Rooms Specification](/client-server-api/#restricted-rooms).
Client and server implementations should be aware of the [signing implications](/rooms/v8/#authorization-rules) of including this Client and server implementations should be aware of the [signing implications](/rooms/v8/#authorization-rules)
field in further events: in particular, the event must be signed by the server which of including this field in further events: in particular, the event must be signed by the
owns the user ID in the field. When copying the membership event's `content` server which owns the user ID in the field. When copying the membership event's `content`
(for profile updates and similar) it is therefore encouraged to exclude this (for profile updates and similar) it is therefore encouraged to exclude this field in the
field in the copy, as otherwise the event might fail event authorization. copy, as otherwise the event might fail event authorization.
reason: reason:
x-addedInMatrixVersion: "1.1" x-addedInMatrixVersion: "1.1"
type: string type: string
description: |- description: |-
Optional user-supplied text for why their membership has changed. For kicks and bans, this is typically the reason for the kick or ban. Optional user-supplied text for why their membership has changed. For kicks and bans,
For other membership changes, this is a way for the user to communicate their intent without having to send a message to the room, such this is typically the reason for the kick or ban. For other membership changes, this is a
as in a case where Bob rejects an invite from Alice about an upcoming concert, but can't make it that day. way for the user to communicate their intent without having to send a message to the
room, such as in a case where Bob rejects an invite from Alice about an upcoming concert,
but can't make it that day.
Clients are not recommended to show this reason to users when receiving an invite due to the potential for spam and abuse. Hiding the Clients are not recommended to show this reason to users when receiving an invite due to
reason behind a button or other component is recommended. the potential for spam and abuse. Hiding the reason behind a button or other component is
recommended.
third_party_invite: third_party_invite:
title: ThirdPartyInvite
description: |-
A third-party invite, if this `m.room.member` is the successor to an
[`m.room.third_party_invite`](/client-server-api/#mroomthird_party_invite)
event.
type: object
properties: properties:
display_name: display_name:
description: A name which can be displayed to represent the user instead of their third-party identifier description: |-
A name which can be displayed to represent the user instead of their
third-party identifier
type: string type: string
signed: signed:
description: 'A block of content which has been signed, which servers can use to verify the event. Clients should ignore this.' $ref: components/signed_third_party_invite.yaml
properties:
mxid:
description: The invited matrix user ID. Must be equal to the user_id property of the event.
type: string
signatures:
description: 'A single signature from the verifying server, in the format specified by the Signing Events section of the server-server API.'
title: Signatures
type: object
additionalProperties:
type: object
additionalProperties:
type: string
token:
description: The token property of the containing third_party_invite object.
type: string
required:
- mxid
- signatures
- token
title: signed
type: object
required: required:
- display_name - display_name
- signed - signed
title: Invite
type: object
required: required:
- membership - membership
title: EventContent title: EventContent

@ -1,28 +1,56 @@
--- ---
allOf: allOf:
- $ref: core-event-schema/state_event.yaml - $ref: core-event-schema/state_event.yaml
description: "Acts as an `m.room.member` invite event, where there isn't a target user_id to invite. This event contains a token and a public key whose private key must be used to sign the token. Any user who can present that signature may use this invitation to join the target room." description: |-
Acts as an `m.room.member` invite event, where there isn't a target user_id to
invite. This event contains a token and a public key whose private key must be
used to sign the token. Any user who can present that signature may use this
invitation to join the target room.
properties: properties:
content: content:
properties: properties:
display_name: display_name:
description: "A user-readable string which represents the user who has been invited. This should not contain the user's third-party ID, as otherwise when the invite is accepted it would leak the association between the matrix ID and the third-party ID." description: |-
A user-readable string which represents the user who has been invited.
This should not contain the user's third-party ID, as otherwise when
the invite is accepted it would leak the association between the
matrix ID and the third-party ID.
type: string type: string
key_validity_url: key_validity_url:
description: "A URL which can be fetched, with querystring public_key=public_key, to validate whether the key has been revoked. The URL must return a JSON object containing a boolean property named 'valid'." description: |-
A URL which can be fetched, with querystring public_key=public_key, to
validate whether the key has been revoked. The URL must return a JSON
object containing a boolean property named 'valid'.
type: string type: string
format: uri
public_key: public_key:
description: A base64-encoded ed25519 key with which token must be signed (though a signature from any entry in public_keys is also sufficient). This exists for backwards compatibility. description: |-
An Ed25519 key with which the token must be signed (though a signature
from any entry in `public_keys` is also sufficient).
The key is encoded using [Unpadded Base64](/appendices/#unpadded-base64),
using the standard or URL-safe alphabets.
This exists for backwards compatibility.
type: string type: string
public_keys: public_keys:
description: Keys with which the token may be signed. description: Keys with which the token may be signed.
items: items:
properties: properties:
key_validity_url: key_validity_url:
description: "An optional URL which can be fetched, with querystring public_key=public_key, to validate whether the key has been revoked. The URL must return a JSON object containing a boolean property named 'valid'. If this URL is absent, the key must be considered valid indefinitely." description: |-
An optional URL which can be fetched, with querystring
`public_key=<public_key>`, to validate whether the key has been
revoked. The URL must return a JSON object containing a boolean
property named `valid`. If this URL is absent, the key must be
considered valid indefinitely.
type: string type: string
public_key: public_key:
description: A base-64 encoded ed25519 key with which token may be signed. description: |-
An Ed25519 key with which the token may be signed.
The key is encoded using [Unpadded Base64](/appendices/#unpadded-base64),
using the standard or URL-safe alphabets.
type: string type: string
required: required:
- public_key - public_key
@ -35,11 +63,15 @@ properties:
- public_key - public_key
type: object type: object
state_key: state_key:
description: 'The token, of which a signature must be produced in order to join the room.' description: |-
The token, of which a signature must be produced in order to join the
room.
type: string type: string
type: type:
enum: enum:
- m.room.third_party_invite - m.room.third_party_invite
type: string type: string
title: 'An invitation to a room issued to a third-party identifier, rather than a matrix user ID.' title: |-
An invitation to a room issued to a third-party identifier, rather than a
matrix user ID.
type: object type: object

@ -51,6 +51,11 @@ mx-room-id:
url: appendices#room-ids url: appendices#room-ids
# regex: "^!" # regex: "^!"
mx-room-alias:
title: Room Alias
url: appendices#room-aliases
# regex: "^#"
mx-server-name: mx-server-name:
title: Server Name title: Server Name
url: appendices#server-name url: appendices#server-name

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