mls_spec/messages/
content_type.rs

1use crate::{
2    MlsSpecError,
3    group::{commits::Commit, proposals::Proposal},
4};
5
6#[derive(
7    Debug,
8    Clone,
9    Copy,
10    PartialEq,
11    Eq,
12    tls_codec::TlsSerialize,
13    tls_codec::TlsDeserialize,
14    tls_codec::TlsSize,
15    strum::Display,
16)]
17#[strum(prefix = "ContentType")]
18#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
19#[repr(u8)]
20#[non_exhaustive]
21pub enum ContentType {
22    Reserved = 0x00,
23    Application = 0x01,
24    Proposal = 0x02,
25    Commit = 0x03,
26    #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
27    SplitCommit = 0x04,
28}
29
30impl TryFrom<u8> for ContentType {
31    type Error = MlsSpecError;
32
33    fn try_from(value: u8) -> Result<Self, Self::Error> {
34        let ct = match value {
35            0x00 => Self::Reserved,
36            0x01 => Self::Application,
37            0x02 => Self::Proposal,
38            0x03 => Self::Commit,
39            #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
40            0x04 => Self::SplitCommit,
41            _ => return Err(MlsSpecError::InvalidContentType),
42        };
43
44        Ok(ct)
45    }
46}
47
48#[derive(
49    Debug,
50    Clone,
51    PartialEq,
52    Eq,
53    tls_codec::TlsSerialize,
54    tls_codec::TlsDeserialize,
55    tls_codec::TlsSize,
56)]
57#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
58#[repr(u8)]
59pub enum ContentTypeInner {
60    #[tls_codec(discriminant = "ContentType::Application")]
61    Application {
62        #[tls_codec(with = "crate::tlspl::bytes")]
63        application_data: Vec<u8>,
64    },
65    #[tls_codec(discriminant = "ContentType::Proposal")]
66    Proposal { proposal: Proposal },
67    #[tls_codec(discriminant = "ContentType::Commit")]
68    Commit { commit: Commit },
69    #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
70    #[tls_codec(discriminant = "ContentType::SplitCommit")]
71    SplitCommit {
72        split_commit: crate::drafts::split_commit::SplitCommit,
73    },
74}
75
76impl From<&ContentTypeInner> for ContentType {
77    fn from(value: &ContentTypeInner) -> Self {
78        match value {
79            ContentTypeInner::Application { .. } => ContentType::Application,
80            ContentTypeInner::Proposal { .. } => ContentType::Proposal,
81            ContentTypeInner::Commit { .. } => ContentType::Commit,
82            #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
83            ContentTypeInner::SplitCommit { .. } => ContentType::SplitCommit,
84        }
85    }
86}
mls_spec/messages/content_type.rs

mls_spec/messages/
content_type.rs
