ruma_federation_api/
discovery.rs

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//! Server discovery endpoints.

use std::collections::BTreeMap;

use ruma_common::{
    serde::Base64, MilliSecondsSinceUnixEpoch, OwnedServerName, OwnedServerSigningKeyId,
    ServerSignatures,
};
use serde::{Deserialize, Serialize};

pub mod discover_homeserver;
pub mod get_remote_server_keys;
pub mod get_remote_server_keys_batch;
pub mod get_server_keys;
pub mod get_server_version;
#[cfg(feature = "unstable-msc3723")]
pub mod get_server_versions;

/// Public key of the homeserver for verifying digital signatures.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[cfg_attr(not(ruma_unstable_exhaustive_types), non_exhaustive)]
pub struct VerifyKey {
    /// The unpadded base64-encoded key.
    pub key: Base64,
}

impl VerifyKey {
    /// Creates a new `VerifyKey` from the given key.
    pub fn new(key: Base64) -> Self {
        Self { key }
    }
}

/// A key the server used to use, but stopped using.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[cfg_attr(not(ruma_unstable_exhaustive_types), non_exhaustive)]
pub struct OldVerifyKey {
    /// Timestamp when this key expired.
    pub expired_ts: MilliSecondsSinceUnixEpoch,

    /// The unpadded base64-encoded key.
    pub key: Base64,
}

impl OldVerifyKey {
    /// Creates a new `OldVerifyKey` with the given expiry time and key.
    pub fn new(expired_ts: MilliSecondsSinceUnixEpoch, key: Base64) -> Self {
        Self { expired_ts, key }
    }
}

/// Queried server key, signed by the notary server.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[cfg_attr(not(ruma_unstable_exhaustive_types), non_exhaustive)]
pub struct ServerSigningKeys {
    /// DNS name of the homeserver.
    pub server_name: OwnedServerName,

    /// Public keys of the homeserver for verifying digital signatures.
    pub verify_keys: BTreeMap<OwnedServerSigningKeyId, VerifyKey>,

    /// Public keys that the homeserver used to use and when it stopped using them.
    // This field is optional, but all fields were assumed to be required before clarification
    // in https://github.com/matrix-org/matrix-spec/pull/1930, so we still send it.
    #[serde(default)]
    pub old_verify_keys: BTreeMap<OwnedServerSigningKeyId, OldVerifyKey>,

    /// Digital signatures of this object signed using the verify_keys.
    ///
    /// Map of server name to keys by key ID.
    pub signatures: ServerSignatures,

    /// Timestamp when the keys should be refreshed.
    ///
    /// This field MUST be ignored in room versions 1, 2, 3, and 4.
    pub valid_until_ts: MilliSecondsSinceUnixEpoch,
}

impl ServerSigningKeys {
    /// Creates a new `ServerSigningKeys` with the given server name and validity timestamp.
    ///
    /// All other fields will be empty.
    pub fn new(server_name: OwnedServerName, valid_until_ts: MilliSecondsSinceUnixEpoch) -> Self {
        Self {
            server_name,
            verify_keys: BTreeMap::new(),
            old_verify_keys: BTreeMap::new(),
            signatures: ServerSignatures::default(),
            valid_until_ts,
        }
    }
}