46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
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#[derive(Debug)]
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pub enum AzureusStyleKind {
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Deluge,
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LibTorrent,
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Transmission,
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Other([char; 2]),
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}
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#[derive(Debug)]
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pub struct AzureusStyle {
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pub kind: AzureusStyleKind,
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pub version: [char; 4],
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}
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impl AzureusStyleKind {
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pub const fn from_bytes(b1: u8, b2: u8) -> Self {
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match &[b1, b2] {
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b"DE" => AzureusStyleKind::Deluge,
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b"lt" | b"LT" => AzureusStyleKind::LibTorrent,
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b"TR" => AzureusStyleKind::Transmission,
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_ => AzureusStyleKind::Other([b1 as char, b2 as char]),
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}
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}
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}
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fn try_decode_azureus_style(p: &[u8; 20]) -> Option<AzureusStyle> {
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if !(p[0] == b'-' && p[7] == b'-') {
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return None;
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}
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let mut version = ['0'; 4];
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for (i, c) in (&p[3..7]).iter().copied().enumerate() {
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version[i] = c as char;
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}
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let kind = AzureusStyleKind::from_bytes(p[1], p[2]);
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Some(AzureusStyle { kind, version })
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}
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#[derive(Debug)]
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pub enum PeerId {
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AzureusStyle(AzureusStyle),
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}
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pub fn try_decode_peer_id(p: [u8; 20]) -> Option<PeerId> {
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Some(PeerId::AzureusStyle(try_decode_azureus_style(&p)?))
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}
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