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| author | Hugh Nimmo-Smith <hughns@users.noreply.github.com> | 2023-06-01 13:52:51 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-06-01 08:52:51 -0400 |
| commit | d1693f03626391097b59ea9568cd8a869ed89569 (patch) | |
| tree | a88e675174b8ba030b231f7661e59d44e61e0654 /docs/usage | |
| parent | Add Synapse version deploy annotations to Grafana dashboard (#15674) (diff) | |
| download | synapse-d1693f03626391097b59ea9568cd8a869ed89569.tar.xz | |
Implement stable support for MSC3882 to allow an existing device/session to generate a login token for use on a new device/session (#15388)
Implements stable support for MSC3882; this involves updating Synapse's support to match the MSC / the spec says. Continue to support the unstable version to allow clients to transition.
Diffstat (limited to 'docs/usage')
| -rw-r--r-- | docs/usage/configuration/config_documentation.md | 65 |
1 files changed, 43 insertions, 22 deletions
diff --git a/docs/usage/configuration/config_documentation.md b/docs/usage/configuration/config_documentation.md index 5ede6d0a82..0cf6e075ff 100644 --- a/docs/usage/configuration/config_documentation.md +++ b/docs/usage/configuration/config_documentation.md @@ -2570,7 +2570,50 @@ Example configuration: ```yaml nonrefreshable_access_token_lifetime: 24h ``` +--- +### `ui_auth` + +The amount of time to allow a user-interactive authentication session to be active. +This defaults to 0, meaning the user is queried for their credentials +before every action, but this can be overridden to allow a single +validation to be re-used. This weakens the protections afforded by +the user-interactive authentication process, by allowing for multiple +(and potentially different) operations to use the same validation session. + +This is ignored for potentially "dangerous" operations (including +deactivating an account, modifying an account password, adding a 3PID, +and minting additional login tokens). + +Use the `session_timeout` sub-option here to change the time allowed for credential validation. + +Example configuration: +```yaml +ui_auth: + session_timeout: "15s" +``` +--- +### `login_via_existing_session` + +Matrix supports the ability of an existing session to mint a login token for +another client. + +Synapse disables this by default as it has security ramifications -- a malicious +client could use the mechanism to spawn more than one session. + +The duration of time the generated token is valid for can be configured with the +`token_timeout` sub-option. + +User-interactive authentication is required when this is enabled unless the +`require_ui_auth` sub-option is set to `False`. + +Example configuration: +```yaml +login_via_existing_session: + enabled: true + require_ui_auth: false + token_timeout: "5m" +``` --- ## Metrics Config options related to metrics. @@ -3415,28 +3458,6 @@ password_config: require_uppercase: true ``` --- -### `ui_auth` - -The amount of time to allow a user-interactive authentication session to be active. - -This defaults to 0, meaning the user is queried for their credentials -before every action, but this can be overridden to allow a single -validation to be re-used. This weakens the protections afforded by -the user-interactive authentication process, by allowing for multiple -(and potentially different) operations to use the same validation session. - -This is ignored for potentially "dangerous" operations (including -deactivating an account, modifying an account password, and -adding a 3PID). - -Use the `session_timeout` sub-option here to change the time allowed for credential validation. - -Example configuration: -```yaml -ui_auth: - session_timeout: "15s" -``` ---- ## Push Configuration settings related to push notifications |