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use crate::error::{Error, Result};
use crate::ice_transport::ice_credential_type::RTCIceCredentialType;
/// ICEServer describes a single STUN and TURN server that can be used by
/// the ICEAgent to establish a connection with a peer.
#[derive(Default, Debug, Clone)]
pub struct RTCIceServer {
pub urls: Vec<String>,
pub username: String,
pub credential: String,
pub credential_type: RTCIceCredentialType,
}
impl RTCIceServer {
pub(crate) fn parse_url(&self, url_str: &str) -> Result<ice::url::Url> {
Ok(ice::url::Url::parse_url(url_str)?)
}
pub(crate) fn validate(&self) -> Result<()> {
self.urls()?;
Ok(())
}
pub(crate) fn urls(&self) -> Result<Vec<ice::url::Url>> {
let mut urls = vec![];
for url_str in &self.urls {
let mut url = self.parse_url(url_str)?;
if url.scheme == ice::url::SchemeType::Turn || url.scheme == ice::url::SchemeType::Turns
{
// https://www.w3.org/TR/webrtc/#set-the-configuration (step #11.3.2)
if self.username.is_empty() || self.credential.is_empty() {
return Err(Error::ErrNoTurnCredentials);
}
url.username = self.username.clone();
match self.credential_type {
RTCIceCredentialType::Password => {
// https://www.w3.org/TR/webrtc/#set-the-configuration (step #11.3.3)
url.password = self.credential.clone();
}
RTCIceCredentialType::Oauth => {
// https://www.w3.org/TR/webrtc/#set-the-configuration (step #11.3.4)
/*if _, ok: = s.Credential.(OAuthCredential); !ok {
return nil,
&rtcerr.InvalidAccessError{Err: ErrTurnCredentials
}
}*/
}
_ => return Err(Error::ErrTurnCredentials),
};
}
urls.push(url);
}
Ok(urls)
}
}
#[cfg(test)]
mod test {
use super::*;
#[test]
fn test_ice_server_validate_success() {
let tests = vec![
(
RTCIceServer {
urls: vec!["turn:192.158.29.39?transport=udp".to_owned()],
username: "unittest".to_owned(),
credential: "placeholder".to_owned(),
credential_type: RTCIceCredentialType::Password,
},
true,
),
(
RTCIceServer {
urls: vec!["turn:[2001:db8:1234:5678::1]?transport=udp".to_owned()],
username: "unittest".to_owned(),
credential: "placeholder".to_owned(),
credential_type: RTCIceCredentialType::Password,
},
true,
),
/*TODO:(ICEServer{
URLs: []string{"turn:192.158.29.39?transport=udp"},
Username: "unittest".to_owned(),
Credential: OAuthCredential{
MACKey: "WmtzanB3ZW9peFhtdm42NzUzNG0=",
AccessToken: "AAwg3kPHWPfvk9bDFL936wYvkoctMADzQ5VhNDgeMR3+ZlZ35byg972fW8QjpEl7bx91YLBPFsIhsxloWcXPhA==",
},
CredentialType: ICECredentialTypeOauth,
}, true),*/
];
for (ice_server, expected_validate) in tests {
let result = ice_server.urls();
assert_eq!(result.is_ok(), expected_validate);
}
}
#[test]
fn test_ice_server_validate_failure() {
let tests = vec![
(
RTCIceServer {
urls: vec!["turn:192.158.29.39?transport=udp".to_owned()],
..Default::default()
},
Error::ErrNoTurnCredentials,
),
(
RTCIceServer {
urls: vec!["turn:192.158.29.39?transport=udp".to_owned()],
username: "unittest".to_owned(),
credential: String::new(),
credential_type: RTCIceCredentialType::Password,
},
Error::ErrNoTurnCredentials,
),
(
RTCIceServer {
urls: vec!["turn:192.158.29.39?transport=udp".to_owned()],
username: "unittest".to_owned(),
credential: String::new(),
credential_type: RTCIceCredentialType::Oauth,
},
Error::ErrNoTurnCredentials,
),
(
RTCIceServer {
urls: vec!["turn:192.158.29.39?transport=udp".to_owned()],
username: "unittest".to_owned(),
credential: String::new(),
credential_type: RTCIceCredentialType::Unspecified,
},
Error::ErrNoTurnCredentials,
),
];
for (ice_server, expected_err) in tests {
if let Err(err) = ice_server.urls() {
assert_eq!(expected_err, err, "{:?} with err {:?}", ice_server, err);
} else {
assert!(false, "expected error, but got ok");
}
}
}
#[test]
fn test_ice_server_validate_failure_err_stun_query() {
let tests = vec![(
RTCIceServer {
urls: vec!["stun:google.de?transport=udp".to_owned()],
username: "unittest".to_owned(),
credential: String::new(),
credential_type: RTCIceCredentialType::Oauth,
},
ice::Error::ErrStunQuery,
)];
for (ice_server, expected_err) in tests {
if let Err(err) = ice_server.urls() {
assert_eq!(err, expected_err, "{:?} with err {:?}", ice_server, err);
} else {
assert!(false, "expected error, but got ok");
}
}
}
}