51 lines
1.4 KiB
Rust
51 lines
1.4 KiB
Rust
#![doc(html_favicon_url = "https://ruma.dev/favicon.ico")]
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#![doc(html_logo_url = "https://ruma.dev/images/logo.png")]
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pub mod client_secret;
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pub mod device_key_id;
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pub mod error;
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pub mod event_id;
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pub mod key_id;
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pub mod mxc_uri;
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pub mod room_alias_id;
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pub mod room_id;
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pub mod room_id_or_alias_id;
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pub mod room_version_id;
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pub mod server_name;
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pub mod user_id;
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pub mod voip_version_id;
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pub use error::Error;
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/// All identifiers must be 255 bytes or less.
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#[cfg(not(feature = "compat-arbitrary-length-ids"))]
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const MAX_BYTES: usize = 255;
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/// Checks if an identifier is valid.
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fn validate_id(id: &str, first_byte: u8) -> Result<(), Error> {
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#[cfg(not(feature = "compat-arbitrary-length-ids"))]
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if id.len() > MAX_BYTES {
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return Err(Error::MaximumLengthExceeded);
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}
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if id.as_bytes().first() != Some(&first_byte) {
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return Err(Error::MissingLeadingSigil);
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}
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Ok(())
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}
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/// Checks an identifier that contains a localpart and hostname for validity.
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fn parse_id(id: &str, first_byte: u8) -> Result<usize, Error> {
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validate_id(id, first_byte)?;
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let colon_idx = id.find(':').ok_or(Error::MissingColon)?;
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server_name::validate(&id[colon_idx + 1..])?;
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Ok(colon_idx)
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}
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/// Checks an identifier that contains a localpart and hostname for validity.
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fn validate_delimited_id(id: &str, first_byte: u8) -> Result<(), Error> {
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parse_id(id, first_byte)?;
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Ok(())
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}
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