mirror of
https://github.com/sile/hls_m3u8.git
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72 lines
1.9 KiB
Rust
72 lines
1.9 KiB
Rust
use std::fmt;
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use std::str::FromStr;
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use crate::types::ProtocolVersion;
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use crate::utils::{quote, tag, unquote};
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use crate::{Error, RequiredVersion};
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/// Specifies how the key is represented in the resource identified by the
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/// `URI`.
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#[non_exhaustive]
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#[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
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pub enum KeyFormat {
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/// An [`EncryptionMethod::Aes128`] uses 16-octet (16 byte/128 bit) keys. If
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/// the format is [`KeyFormat::Identity`], the key file is a single packed
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/// array of 16 octets (16 byte/128 bit) in binary format.
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///
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/// [`EncryptionMethod::Aes128`]: crate::types::EncryptionMethod::Aes128
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Identity,
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}
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impl Default for KeyFormat {
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fn default() -> Self { Self::Identity }
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}
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impl FromStr for KeyFormat {
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type Err = Error;
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fn from_str(input: &str) -> Result<Self, Self::Err> {
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tag(&unquote(input), "identity")?; // currently only KeyFormat::Identity exists!
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Ok(Self::Identity)
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}
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}
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impl fmt::Display for KeyFormat {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "{}", quote(&"identity")) }
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}
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/// This tag requires [`ProtocolVersion::V5`].
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impl RequiredVersion for KeyFormat {
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fn required_version(&self) -> ProtocolVersion { ProtocolVersion::V5 }
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use pretty_assertions::assert_eq;
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#[test]
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fn test_display() {
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assert_eq!(KeyFormat::Identity.to_string(), quote("identity"));
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}
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#[test]
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fn test_parser() {
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assert_eq!(KeyFormat::Identity, quote("identity").parse().unwrap());
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assert_eq!(KeyFormat::Identity, "identity".parse().unwrap());
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assert!("garbage".parse::<KeyFormat>().is_err());
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}
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#[test]
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fn test_required_version() {
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assert_eq!(KeyFormat::Identity.required_version(), ProtocolVersion::V5)
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}
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#[test]
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fn test_default() {
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assert_eq!(KeyFormat::Identity, KeyFormat::default());
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}
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}
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