28 lines
818 B
Rust
28 lines
818 B
Rust
use crate::{server_name, Error};
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const PROTOCOL: &str = "mxc://";
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pub fn validate(uri: &str) -> Result<(&str, &str), Error> {
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let uri = match uri.strip_prefix(PROTOCOL) {
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Some(uri) => uri,
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None => return Err(Error::InvalidMxcUri),
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};
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let index = match uri.find('/') {
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Some(index) => index,
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None => return Err(Error::InvalidMxcUri),
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};
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let server_name = &uri[..index];
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let media_id = &uri[index + 1..];
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// See: https://matrix.org/docs/spec/client_server/r0.6.1#id69
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let media_id_is_valid =
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media_id.bytes().all(|b| matches!(b, b'0'..=b'9' | b'a'..=b'z' | b'A'..=b'Z' | b'-' ));
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if media_id_is_valid && server_name::validate(server_name).is_ok() {
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Ok((media_id, server_name))
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} else {
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Err(Error::InvalidMxcUri)
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}
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}
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