Enum RoomMessage 

pub enum RoomMessage {
    MemberAnnounce {
        sender_fingerprint: String,
        wrapped_session_key: Option<String>,
        display_name: Option<String>,
    },
    SessionKeyRequest {
        requester_fingerprint: String,
    },
    Encrypted {
        sender_fingerprint: String,
        session_id: String,
        ciphertext_b64: String,
    },
    Plain {
        sender_fingerprint: String,
        body: String,
    },
    MemberLeave {
        sender_fingerprint: String,
    },
    RotateRoomKey {
        rotator_fingerprint: String,
        new_salt: Vec<u8>,
    },
    Typing {
        sender_fingerprint: String,
    },
    FileOffer {
        sender_fingerprint: String,
        file_id: String,
        name: String,
        size_bytes: u64,
        mime: Option<String>,
        chunk_count: u32,
        encrypted_meta: Option<EncryptedFileMeta>,
    },
    FileChunk {
        sender_fingerprint: String,
        file_id: String,
        chunk_index: u32,
        total_chunks: u32,
        data_b64: String,
    },
}

All messages on a room’s per-room topic.

Variants

MemberAnnounce

Announce my presence in the room. For encrypted rooms, also share my Megolm session key (passphrase-wrapped).

Fields

sender_fingerprint: String

wrapped_session_key: Option<String>

base64(nonce || chacha20poly1305_ciphertext) of the Megolm SessionKey, encrypted under the passphrase-derived key. None for unencrypted rooms.

display_name: Option<String>

Optional human-readable display name. Serde defaults to None for forward compat with older peers.

SessionKeyRequest

A request from a recently-joined member: “I need session keys”. Existing members respond with MemberAnnounce.

Fields

requester_fingerprint: String

Encrypted

An encrypted message in an encrypted room.

Fields

sender_fingerprint: String

session_id: String

ciphertext_b64: String

base64-encoded MegolmMessage bytes

Plain

A plaintext message in an unencrypted room.

Fields

sender_fingerprint: String

body: String

MemberLeave

Explicit leave notification.

Fields

sender_fingerprint: String

RotateRoomKey

“I’m rotating the room key — derive a new passphrase key from new_salt + the new passphrase you’ll be told out-of-band, then wait for my MemberAnnounce.” Phase 3 v1: simplistic — only the rotator’s outbound changes; receivers must opt in by entering the new passphrase to decrypt new wrapped session keys.

Fields

rotator_fingerprint: String

new_salt: Vec<u8>

Argon2id salt for the new passphrase-derived key.

Typing

Ephemeral “I’m typing” signal. TTL on the receive side is 3s.

Fields

sender_fingerprint: String

FileOffer

Announce a file the sender is about to push. The receiver creates an attachment row (status=offered) and waits for chunks. For encrypted rooms encrypted_meta carries the Megolm-wrapped file key + ChaCha20 nonce.

Fields

sender_fingerprint: String

file_id: String

name: String

size_bytes: u64

mime: Option<String>

chunk_count: u32

encrypted_meta: Option<EncryptedFileMeta>

FileChunk

One chunk of an in-flight file. Receivers reassemble by index and verify the final SHA-256 against file_id.

Fields

sender_fingerprint: String

file_id: String

chunk_index: u32

total_chunks: u32

data_b64: String

base64 of raw chunk bytes (plaintext bytes for unencrypted rooms, ChaCha20-Poly1305 ciphertext for encrypted).

Trait Implementations

impl Clone for RoomMessage

fn clone(&self) -> RoomMessage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RoomMessage

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RoomMessage

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RoomMessage

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.