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    Hash,
13    tls_codec::TlsSerialize,
14    tls_codec::TlsDeserialize,
15    tls_codec::TlsSize,
16    strum::Display,
17)]
18#[strum(prefix = "ContentType")]
19#[cfg_attr(
20    feature = "serde",
21    derive(serde_repr::Serialize_repr, serde_repr::Deserialize_repr)
22)]
23#[repr(u8)]
24#[non_exhaustive]
25pub enum ContentType {
26    Reserved = 0x00,
27    Application = 0x01,
28    Proposal = 0x02,
29    Commit = 0x03,
30    #[cfg(feature = "draft-mahy-mls-new-content-types")]
31    Status = crate::drafts::new_content_types::CONTENT_TYPE_STATUS,
32    #[cfg(feature = "draft-mahy-mls-new-content-types")]
33    Ephemeral = crate::drafts::new_content_types::CONTENT_TYPE_EPHEMERAL,
34    #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
35    SplitCommit = crate::drafts::split_commit::CONTENT_TYPE_SPLIT_COMMIT,
36}
37
38impl TryFrom<u8> for ContentType {
39    type Error = MlsSpecError;
40
41    fn try_from(value: u8) -> Result<Self, Self::Error> {
42        let ct = match value {
43            0x00 => Self::Reserved,
44            0x01 => Self::Application,
45            0x02 => Self::Proposal,
46            0x03 => Self::Commit,
47            #[cfg(feature = "draft-mahy-mls-new-content-types")]
48            crate::drafts::new_content_types::CONTENT_TYPE_STATUS => Self::Status,
49            #[cfg(feature = "draft-mahy-mls-new-content-types")]
50            crate::drafts::new_content_types::CONTENT_TYPE_EPHEMERAL => Self::Ephemeral,
51            #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
52            crate::drafts::split_commit::CONTENT_TYPE_SPLIT_COMMIT => Self::SplitCommit,
53            _ => return Err(MlsSpecError::InvalidContentType),
54        };
55
56        Ok(ct)
57    }
58}
59
60#[derive(
61    Debug,
62    Clone,
63    PartialEq,
64    Eq,
65    tls_codec::TlsSerialize,
66    tls_codec::TlsDeserialize,
67    tls_codec::TlsSize,
68)]
69#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
70#[repr(u8)]
71pub enum ContentTypeInner {
72    #[tls_codec(discriminant = "ContentType::Application")]
73    Application {
74        #[tls_codec(with = "crate::tlspl::bytes")]
75        application_data: Vec<u8>,
76    },
77    #[tls_codec(discriminant = "ContentType::Proposal")]
78    Proposal { proposal: Proposal },
79    #[tls_codec(discriminant = "ContentType::Commit")]
80    Commit { commit: Commit },
81    #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
82    #[tls_codec(discriminant = "ContentType::SplitCommit")]
83    SplitCommit {
84        split_commit: crate::drafts::split_commit::SplitCommit,
85    },
86    #[cfg(feature = "draft-mahy-mls-new-content-types")]
87    #[tls_codec(discriminant = "ContentType::Status")]
88    Status {
89        #[tls_codec(with = "crate::tlspl::bytes")]
90        application_data: Vec<u8>,
91    },
92    #[cfg(feature = "draft-mahy-mls-new-content-types")]
93    #[tls_codec(discriminant = "ContentType::Ephemeral")]
94    Ephemeral {
95        #[tls_codec(with = "crate::tlspl::bytes")]
96        application_data: Vec<u8>,
97    },
98}
99
100impl From<&ContentTypeInner> for ContentType {
101    fn from(value: &ContentTypeInner) -> Self {
102        match value {
103            ContentTypeInner::Application { .. } => ContentType::Application,
104            ContentTypeInner::Proposal { .. } => ContentType::Proposal,
105            ContentTypeInner::Commit { .. } => ContentType::Commit,
106            #[cfg(feature = "draft-mularczyk-mls-splitcommit")]
107            ContentTypeInner::SplitCommit { .. } => ContentType::SplitCommit,
108            #[cfg(feature = "draft-mahy-mls-new-content-types")]
109            ContentTypeInner::Status { .. } => ContentType::Status,
110            #[cfg(feature = "draft-mahy-mls-new-content-types")]
111            ContentTypeInner::Ephemeral { .. } => ContentType::Ephemeral,
112        }
113    }
114}
mls_spec/messages/content_type.rs

mls_spec/messages/
content_type.rs
