Struct librice::candidate::CandidateBuilder
source · pub struct CandidateBuilder { /* private fields */ }Implementations§
source§impl CandidateBuilder
impl CandidateBuilder
sourcepub fn build(self) -> Candidate
pub fn build(self) -> Candidate
Builds the candidate
Examples
let addr: SocketAddr = "127.0.0.1:2345".parse().unwrap();
let candidate = Candidate::builder(
0,
CandidateType::Host,
TransportType::Udp,
"foundation",
addr,
)
.priority(1234)
.build();
assert_eq!(candidate.to_sdp_string(), "candidate foundation 0 UDP 1234 127.0.0.1 2345 host")Examples found in repository?
src/gathering.rs (line 202)
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pub fn gather_component(
component_id: usize,
local_agents: Vec<StunAgent>,
stun_servers: Vec<(TransportType, SocketAddr)>,
) -> impl Stream<Item = (Candidate, StunAgent)> {
let futures = futures::stream::FuturesUnordered::new();
for f in local_agents
.iter()
.enumerate()
.filter_map(|(i, agent)| match &agent.inner.channel {
StunChannel::UdpAny(schannel) => Some(futures::future::ready(
udp_socket_host_gather_candidate(schannel.socket(), (i * 10) as u8)
.map(|ga| (ga, agent.clone())),
)),
_ => None,
})
{
futures.push(f.boxed_local());
}
for (i, agent) in local_agents.iter().cloned().enumerate() {
for stun_server in stun_servers.iter() {
futures.push(
{
let agent = agent.clone();
let stun_server = *stun_server;
async move {
gather_stun_xor_address(
(i * 10) as u8,
agent.clone(),
stun_server.0,
stun_server.1,
)
.await
.map(move |ga| (ga, agent))
}
}
.boxed_local(),
)
}
}
// TODO: add peer-reflexive and relayed (TURN) candidates
let produced = Arc::new(Mutex::new(Vec::new()));
futures.filter_map(move |ga| {
let produced = produced.clone();
async move {
match ga {
Ok((ga, channel)) => {
let priority = Candidate::calculate_priority(
ga.ctype,
ga.local_preference as u32,
component_id,
);
trace!("candidate {:?}, {:?}", ga, priority);
if address_is_ignorable(ga.address.ip()) {
return None;
}
if address_is_ignorable(ga.base.ip()) {
return None;
}
let mut produced = produced.lock().unwrap();
let mut builder = Candidate::builder(
component_id,
ga.ctype,
ga.transport,
&produced.len().to_string(),
ga.address,
)
.priority(priority)
.base_address(ga.base);
if let Some(related) = ga.related {
builder = builder.related_address(related);
}
let cand = builder.build();
for c in produced.iter() {
// ignore candidates that produce the same local/remote pair of
// addresses
if cand.redundant_with(c) {
trace!("redundant {:?}", cand);
return None;
}
}
debug!("producing {:?}", cand);
produced.push(cand.clone());
Some((cand, channel))
}
Err(e) => {
trace!("candidate retrieval error \'{:?}\'", e);
None
}
}
}
})
}More examples
src/candidate.rs (line 519)
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fn parse_candidate(s: &str) -> Result<Candidate, ParseCandidateError> {
let (s, _) = tag::<_, _, nom::error::Error<_>>("candidate")(s)
.map_err(|_| ParseCandidateError::NotCandidate)?;
let s = skip_spaces(s)?;
let (s, foundation) = take_while_m_n::<_, _, nom::error::Error<_>>(1, 32, is_ice_char)(s)
.map_err(|_| ParseCandidateError::BadFoundation)?;
let s = skip_spaces(s)?;
let (s, component_id): (_, usize) = map_res(
take_while_m_n::<_, _, nom::error::Error<_>>(1, 3, is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadComponentId)?;
let s = skip_spaces(s)?;
let (s, transport_type) = take_while1::<_, _, nom::error::Error<_>>(is_alphabetic)(s)
.map_err(|_| ParseCandidateError::BadTransportType)?;
let transport_type = TransportType::from_str(transport_type)?;
let s = skip_spaces(s)?;
let (s, priority) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadPriority)?;
let s = skip_spaces(s)?;
// FIXME: proper address parsing
let (s, connection_address) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_part_of_socket_addr),
|s: &str| s.parse(),
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let s = skip_spaces(s)?;
let (s, port) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let address = SocketAddr::new(connection_address, port);
let s = skip_spaces(s)?;
let (s, candidate_type) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_alphabetic),
CandidateType::from_str,
)(s)
.map_err(|_| ParseCandidateError::BadCandidateType)?;
let mut builder = Candidate::builder(
component_id,
candidate_type,
transport_type,
foundation,
address,
)
.priority(priority)
.base_address(address);
let mut iter_s = s;
let mut expected_next = None;
let mut raddr = None;
while !iter_s.is_empty() {
let s = skip_spaces(iter_s)?;
let (s, ext_key) = take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
let s = skip_spaces(s)?;
let (s, ext_value) =
take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
if let Some(expected_next) = expected_next {
if ext_key != expected_next {
return Err(ParseCandidateError::BadExtension);
}
if expected_next == "rport" {
let raddr = raddr.take().ok_or(ParseCandidateError::BadAddress)?;
let port =
str::parse(ext_value).map_err(|_| ParseCandidateError::BadAddress)?;
builder = builder.related_address(SocketAddr::new(raddr, port));
} else {
unreachable!();
}
} else {
match ext_key {
"raddr" => {
raddr = Some(
ext_value
.parse()
.map_err(|_| ParseCandidateError::BadAddress)?,
);
expected_next = Some("rport");
}
"tcptype" => {
let tcp_type = TcpType::from_str(ext_value)?;
builder = builder.tcp_type(tcp_type);
}
_ => builder = builder.extension(ext_key, ext_value),
}
}
iter_s = s;
}
if builder.ttype == TransportType::Tcp && builder.tcp_type == None {
return Err(ParseCandidateError::BadTransportType);
}
Ok(builder.build())
}sourcepub fn priority(self, priority: u32) -> Self
pub fn priority(self, priority: u32) -> Self
Specify the priority of the to be built candidate
Examples found in repository?
src/gathering.rs (line 197)
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pub fn gather_component(
component_id: usize,
local_agents: Vec<StunAgent>,
stun_servers: Vec<(TransportType, SocketAddr)>,
) -> impl Stream<Item = (Candidate, StunAgent)> {
let futures = futures::stream::FuturesUnordered::new();
for f in local_agents
.iter()
.enumerate()
.filter_map(|(i, agent)| match &agent.inner.channel {
StunChannel::UdpAny(schannel) => Some(futures::future::ready(
udp_socket_host_gather_candidate(schannel.socket(), (i * 10) as u8)
.map(|ga| (ga, agent.clone())),
)),
_ => None,
})
{
futures.push(f.boxed_local());
}
for (i, agent) in local_agents.iter().cloned().enumerate() {
for stun_server in stun_servers.iter() {
futures.push(
{
let agent = agent.clone();
let stun_server = *stun_server;
async move {
gather_stun_xor_address(
(i * 10) as u8,
agent.clone(),
stun_server.0,
stun_server.1,
)
.await
.map(move |ga| (ga, agent))
}
}
.boxed_local(),
)
}
}
// TODO: add peer-reflexive and relayed (TURN) candidates
let produced = Arc::new(Mutex::new(Vec::new()));
futures.filter_map(move |ga| {
let produced = produced.clone();
async move {
match ga {
Ok((ga, channel)) => {
let priority = Candidate::calculate_priority(
ga.ctype,
ga.local_preference as u32,
component_id,
);
trace!("candidate {:?}, {:?}", ga, priority);
if address_is_ignorable(ga.address.ip()) {
return None;
}
if address_is_ignorable(ga.base.ip()) {
return None;
}
let mut produced = produced.lock().unwrap();
let mut builder = Candidate::builder(
component_id,
ga.ctype,
ga.transport,
&produced.len().to_string(),
ga.address,
)
.priority(priority)
.base_address(ga.base);
if let Some(related) = ga.related {
builder = builder.related_address(related);
}
let cand = builder.build();
for c in produced.iter() {
// ignore candidates that produce the same local/remote pair of
// addresses
if cand.redundant_with(c) {
trace!("redundant {:?}", cand);
return None;
}
}
debug!("producing {:?}", cand);
produced.push(cand.clone());
Some((cand, channel))
}
Err(e) => {
trace!("candidate retrieval error \'{:?}\'", e);
None
}
}
}
})
}More examples
src/candidate.rs (line 466)
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fn parse_candidate(s: &str) -> Result<Candidate, ParseCandidateError> {
let (s, _) = tag::<_, _, nom::error::Error<_>>("candidate")(s)
.map_err(|_| ParseCandidateError::NotCandidate)?;
let s = skip_spaces(s)?;
let (s, foundation) = take_while_m_n::<_, _, nom::error::Error<_>>(1, 32, is_ice_char)(s)
.map_err(|_| ParseCandidateError::BadFoundation)?;
let s = skip_spaces(s)?;
let (s, component_id): (_, usize) = map_res(
take_while_m_n::<_, _, nom::error::Error<_>>(1, 3, is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadComponentId)?;
let s = skip_spaces(s)?;
let (s, transport_type) = take_while1::<_, _, nom::error::Error<_>>(is_alphabetic)(s)
.map_err(|_| ParseCandidateError::BadTransportType)?;
let transport_type = TransportType::from_str(transport_type)?;
let s = skip_spaces(s)?;
let (s, priority) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadPriority)?;
let s = skip_spaces(s)?;
// FIXME: proper address parsing
let (s, connection_address) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_part_of_socket_addr),
|s: &str| s.parse(),
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let s = skip_spaces(s)?;
let (s, port) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let address = SocketAddr::new(connection_address, port);
let s = skip_spaces(s)?;
let (s, candidate_type) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_alphabetic),
CandidateType::from_str,
)(s)
.map_err(|_| ParseCandidateError::BadCandidateType)?;
let mut builder = Candidate::builder(
component_id,
candidate_type,
transport_type,
foundation,
address,
)
.priority(priority)
.base_address(address);
let mut iter_s = s;
let mut expected_next = None;
let mut raddr = None;
while !iter_s.is_empty() {
let s = skip_spaces(iter_s)?;
let (s, ext_key) = take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
let s = skip_spaces(s)?;
let (s, ext_value) =
take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
if let Some(expected_next) = expected_next {
if ext_key != expected_next {
return Err(ParseCandidateError::BadExtension);
}
if expected_next == "rport" {
let raddr = raddr.take().ok_or(ParseCandidateError::BadAddress)?;
let port =
str::parse(ext_value).map_err(|_| ParseCandidateError::BadAddress)?;
builder = builder.related_address(SocketAddr::new(raddr, port));
} else {
unreachable!();
}
} else {
match ext_key {
"raddr" => {
raddr = Some(
ext_value
.parse()
.map_err(|_| ParseCandidateError::BadAddress)?,
);
expected_next = Some("rport");
}
"tcptype" => {
let tcp_type = TcpType::from_str(ext_value)?;
builder = builder.tcp_type(tcp_type);
}
_ => builder = builder.extension(ext_key, ext_value),
}
}
iter_s = s;
}
if builder.ttype == TransportType::Tcp && builder.tcp_type == None {
return Err(ParseCandidateError::BadTransportType);
}
Ok(builder.build())
}sourcepub fn base_address(self, base_address: SocketAddr) -> Self
pub fn base_address(self, base_address: SocketAddr) -> Self
Specify the base address of the to be built candidate
Examples found in repository?
src/gathering.rs (line 198)
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pub fn gather_component(
component_id: usize,
local_agents: Vec<StunAgent>,
stun_servers: Vec<(TransportType, SocketAddr)>,
) -> impl Stream<Item = (Candidate, StunAgent)> {
let futures = futures::stream::FuturesUnordered::new();
for f in local_agents
.iter()
.enumerate()
.filter_map(|(i, agent)| match &agent.inner.channel {
StunChannel::UdpAny(schannel) => Some(futures::future::ready(
udp_socket_host_gather_candidate(schannel.socket(), (i * 10) as u8)
.map(|ga| (ga, agent.clone())),
)),
_ => None,
})
{
futures.push(f.boxed_local());
}
for (i, agent) in local_agents.iter().cloned().enumerate() {
for stun_server in stun_servers.iter() {
futures.push(
{
let agent = agent.clone();
let stun_server = *stun_server;
async move {
gather_stun_xor_address(
(i * 10) as u8,
agent.clone(),
stun_server.0,
stun_server.1,
)
.await
.map(move |ga| (ga, agent))
}
}
.boxed_local(),
)
}
}
// TODO: add peer-reflexive and relayed (TURN) candidates
let produced = Arc::new(Mutex::new(Vec::new()));
futures.filter_map(move |ga| {
let produced = produced.clone();
async move {
match ga {
Ok((ga, channel)) => {
let priority = Candidate::calculate_priority(
ga.ctype,
ga.local_preference as u32,
component_id,
);
trace!("candidate {:?}, {:?}", ga, priority);
if address_is_ignorable(ga.address.ip()) {
return None;
}
if address_is_ignorable(ga.base.ip()) {
return None;
}
let mut produced = produced.lock().unwrap();
let mut builder = Candidate::builder(
component_id,
ga.ctype,
ga.transport,
&produced.len().to_string(),
ga.address,
)
.priority(priority)
.base_address(ga.base);
if let Some(related) = ga.related {
builder = builder.related_address(related);
}
let cand = builder.build();
for c in produced.iter() {
// ignore candidates that produce the same local/remote pair of
// addresses
if cand.redundant_with(c) {
trace!("redundant {:?}", cand);
return None;
}
}
debug!("producing {:?}", cand);
produced.push(cand.clone());
Some((cand, channel))
}
Err(e) => {
trace!("candidate retrieval error \'{:?}\'", e);
None
}
}
}
})
}More examples
src/candidate.rs (line 467)
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fn parse_candidate(s: &str) -> Result<Candidate, ParseCandidateError> {
let (s, _) = tag::<_, _, nom::error::Error<_>>("candidate")(s)
.map_err(|_| ParseCandidateError::NotCandidate)?;
let s = skip_spaces(s)?;
let (s, foundation) = take_while_m_n::<_, _, nom::error::Error<_>>(1, 32, is_ice_char)(s)
.map_err(|_| ParseCandidateError::BadFoundation)?;
let s = skip_spaces(s)?;
let (s, component_id): (_, usize) = map_res(
take_while_m_n::<_, _, nom::error::Error<_>>(1, 3, is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadComponentId)?;
let s = skip_spaces(s)?;
let (s, transport_type) = take_while1::<_, _, nom::error::Error<_>>(is_alphabetic)(s)
.map_err(|_| ParseCandidateError::BadTransportType)?;
let transport_type = TransportType::from_str(transport_type)?;
let s = skip_spaces(s)?;
let (s, priority) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadPriority)?;
let s = skip_spaces(s)?;
// FIXME: proper address parsing
let (s, connection_address) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_part_of_socket_addr),
|s: &str| s.parse(),
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let s = skip_spaces(s)?;
let (s, port) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let address = SocketAddr::new(connection_address, port);
let s = skip_spaces(s)?;
let (s, candidate_type) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_alphabetic),
CandidateType::from_str,
)(s)
.map_err(|_| ParseCandidateError::BadCandidateType)?;
let mut builder = Candidate::builder(
component_id,
candidate_type,
transport_type,
foundation,
address,
)
.priority(priority)
.base_address(address);
let mut iter_s = s;
let mut expected_next = None;
let mut raddr = None;
while !iter_s.is_empty() {
let s = skip_spaces(iter_s)?;
let (s, ext_key) = take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
let s = skip_spaces(s)?;
let (s, ext_value) =
take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
if let Some(expected_next) = expected_next {
if ext_key != expected_next {
return Err(ParseCandidateError::BadExtension);
}
if expected_next == "rport" {
let raddr = raddr.take().ok_or(ParseCandidateError::BadAddress)?;
let port =
str::parse(ext_value).map_err(|_| ParseCandidateError::BadAddress)?;
builder = builder.related_address(SocketAddr::new(raddr, port));
} else {
unreachable!();
}
} else {
match ext_key {
"raddr" => {
raddr = Some(
ext_value
.parse()
.map_err(|_| ParseCandidateError::BadAddress)?,
);
expected_next = Some("rport");
}
"tcptype" => {
let tcp_type = TcpType::from_str(ext_value)?;
builder = builder.tcp_type(tcp_type);
}
_ => builder = builder.extension(ext_key, ext_value),
}
}
iter_s = s;
}
if builder.ttype == TransportType::Tcp && builder.tcp_type == None {
return Err(ParseCandidateError::BadTransportType);
}
Ok(builder.build())
}Specify the related address of the to be built candidate
Examples found in repository?
src/gathering.rs (line 200)
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pub fn gather_component(
component_id: usize,
local_agents: Vec<StunAgent>,
stun_servers: Vec<(TransportType, SocketAddr)>,
) -> impl Stream<Item = (Candidate, StunAgent)> {
let futures = futures::stream::FuturesUnordered::new();
for f in local_agents
.iter()
.enumerate()
.filter_map(|(i, agent)| match &agent.inner.channel {
StunChannel::UdpAny(schannel) => Some(futures::future::ready(
udp_socket_host_gather_candidate(schannel.socket(), (i * 10) as u8)
.map(|ga| (ga, agent.clone())),
)),
_ => None,
})
{
futures.push(f.boxed_local());
}
for (i, agent) in local_agents.iter().cloned().enumerate() {
for stun_server in stun_servers.iter() {
futures.push(
{
let agent = agent.clone();
let stun_server = *stun_server;
async move {
gather_stun_xor_address(
(i * 10) as u8,
agent.clone(),
stun_server.0,
stun_server.1,
)
.await
.map(move |ga| (ga, agent))
}
}
.boxed_local(),
)
}
}
// TODO: add peer-reflexive and relayed (TURN) candidates
let produced = Arc::new(Mutex::new(Vec::new()));
futures.filter_map(move |ga| {
let produced = produced.clone();
async move {
match ga {
Ok((ga, channel)) => {
let priority = Candidate::calculate_priority(
ga.ctype,
ga.local_preference as u32,
component_id,
);
trace!("candidate {:?}, {:?}", ga, priority);
if address_is_ignorable(ga.address.ip()) {
return None;
}
if address_is_ignorable(ga.base.ip()) {
return None;
}
let mut produced = produced.lock().unwrap();
let mut builder = Candidate::builder(
component_id,
ga.ctype,
ga.transport,
&produced.len().to_string(),
ga.address,
)
.priority(priority)
.base_address(ga.base);
if let Some(related) = ga.related {
builder = builder.related_address(related);
}
let cand = builder.build();
for c in produced.iter() {
// ignore candidates that produce the same local/remote pair of
// addresses
if cand.redundant_with(c) {
trace!("redundant {:?}", cand);
return None;
}
}
debug!("producing {:?}", cand);
produced.push(cand.clone());
Some((cand, channel))
}
Err(e) => {
trace!("candidate retrieval error \'{:?}\'", e);
None
}
}
}
})
}More examples
src/candidate.rs (line 490)
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fn parse_candidate(s: &str) -> Result<Candidate, ParseCandidateError> {
let (s, _) = tag::<_, _, nom::error::Error<_>>("candidate")(s)
.map_err(|_| ParseCandidateError::NotCandidate)?;
let s = skip_spaces(s)?;
let (s, foundation) = take_while_m_n::<_, _, nom::error::Error<_>>(1, 32, is_ice_char)(s)
.map_err(|_| ParseCandidateError::BadFoundation)?;
let s = skip_spaces(s)?;
let (s, component_id): (_, usize) = map_res(
take_while_m_n::<_, _, nom::error::Error<_>>(1, 3, is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadComponentId)?;
let s = skip_spaces(s)?;
let (s, transport_type) = take_while1::<_, _, nom::error::Error<_>>(is_alphabetic)(s)
.map_err(|_| ParseCandidateError::BadTransportType)?;
let transport_type = TransportType::from_str(transport_type)?;
let s = skip_spaces(s)?;
let (s, priority) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadPriority)?;
let s = skip_spaces(s)?;
// FIXME: proper address parsing
let (s, connection_address) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_part_of_socket_addr),
|s: &str| s.parse(),
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let s = skip_spaces(s)?;
let (s, port) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let address = SocketAddr::new(connection_address, port);
let s = skip_spaces(s)?;
let (s, candidate_type) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_alphabetic),
CandidateType::from_str,
)(s)
.map_err(|_| ParseCandidateError::BadCandidateType)?;
let mut builder = Candidate::builder(
component_id,
candidate_type,
transport_type,
foundation,
address,
)
.priority(priority)
.base_address(address);
let mut iter_s = s;
let mut expected_next = None;
let mut raddr = None;
while !iter_s.is_empty() {
let s = skip_spaces(iter_s)?;
let (s, ext_key) = take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
let s = skip_spaces(s)?;
let (s, ext_value) =
take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
if let Some(expected_next) = expected_next {
if ext_key != expected_next {
return Err(ParseCandidateError::BadExtension);
}
if expected_next == "rport" {
let raddr = raddr.take().ok_or(ParseCandidateError::BadAddress)?;
let port =
str::parse(ext_value).map_err(|_| ParseCandidateError::BadAddress)?;
builder = builder.related_address(SocketAddr::new(raddr, port));
} else {
unreachable!();
}
} else {
match ext_key {
"raddr" => {
raddr = Some(
ext_value
.parse()
.map_err(|_| ParseCandidateError::BadAddress)?,
);
expected_next = Some("rport");
}
"tcptype" => {
let tcp_type = TcpType::from_str(ext_value)?;
builder = builder.tcp_type(tcp_type);
}
_ => builder = builder.extension(ext_key, ext_value),
}
}
iter_s = s;
}
if builder.ttype == TransportType::Tcp && builder.tcp_type == None {
return Err(ParseCandidateError::BadTransportType);
}
Ok(builder.build())
}sourcepub fn tcp_type(self, tcp_type: TcpType) -> Self
pub fn tcp_type(self, tcp_type: TcpType) -> Self
Specify the type of TCP connection of the to be built candidate
- This will panic at build() time if the transport type is not
TransportType::Tcp. - This will panic at build() time if this function is not called but the
transport type is
TransportType::Tcp
Examples found in repository?
src/candidate.rs (line 506)
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fn parse_candidate(s: &str) -> Result<Candidate, ParseCandidateError> {
let (s, _) = tag::<_, _, nom::error::Error<_>>("candidate")(s)
.map_err(|_| ParseCandidateError::NotCandidate)?;
let s = skip_spaces(s)?;
let (s, foundation) = take_while_m_n::<_, _, nom::error::Error<_>>(1, 32, is_ice_char)(s)
.map_err(|_| ParseCandidateError::BadFoundation)?;
let s = skip_spaces(s)?;
let (s, component_id): (_, usize) = map_res(
take_while_m_n::<_, _, nom::error::Error<_>>(1, 3, is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadComponentId)?;
let s = skip_spaces(s)?;
let (s, transport_type) = take_while1::<_, _, nom::error::Error<_>>(is_alphabetic)(s)
.map_err(|_| ParseCandidateError::BadTransportType)?;
let transport_type = TransportType::from_str(transport_type)?;
let s = skip_spaces(s)?;
let (s, priority) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadPriority)?;
let s = skip_spaces(s)?;
// FIXME: proper address parsing
let (s, connection_address) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_part_of_socket_addr),
|s: &str| s.parse(),
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let s = skip_spaces(s)?;
let (s, port) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let address = SocketAddr::new(connection_address, port);
let s = skip_spaces(s)?;
let (s, candidate_type) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_alphabetic),
CandidateType::from_str,
)(s)
.map_err(|_| ParseCandidateError::BadCandidateType)?;
let mut builder = Candidate::builder(
component_id,
candidate_type,
transport_type,
foundation,
address,
)
.priority(priority)
.base_address(address);
let mut iter_s = s;
let mut expected_next = None;
let mut raddr = None;
while !iter_s.is_empty() {
let s = skip_spaces(iter_s)?;
let (s, ext_key) = take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
let s = skip_spaces(s)?;
let (s, ext_value) =
take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
if let Some(expected_next) = expected_next {
if ext_key != expected_next {
return Err(ParseCandidateError::BadExtension);
}
if expected_next == "rport" {
let raddr = raddr.take().ok_or(ParseCandidateError::BadAddress)?;
let port =
str::parse(ext_value).map_err(|_| ParseCandidateError::BadAddress)?;
builder = builder.related_address(SocketAddr::new(raddr, port));
} else {
unreachable!();
}
} else {
match ext_key {
"raddr" => {
raddr = Some(
ext_value
.parse()
.map_err(|_| ParseCandidateError::BadAddress)?,
);
expected_next = Some("rport");
}
"tcptype" => {
let tcp_type = TcpType::from_str(ext_value)?;
builder = builder.tcp_type(tcp_type);
}
_ => builder = builder.extension(ext_key, ext_value),
}
}
iter_s = s;
}
if builder.ttype == TransportType::Tcp && builder.tcp_type == None {
return Err(ParseCandidateError::BadTransportType);
}
Ok(builder.build())
}sourcepub fn extension(self, key: &str, val: &str) -> Self
pub fn extension(self, key: &str, val: &str) -> Self
Add an extension attribute to the candidate
Examples found in repository?
src/candidate.rs (line 508)
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fn parse_candidate(s: &str) -> Result<Candidate, ParseCandidateError> {
let (s, _) = tag::<_, _, nom::error::Error<_>>("candidate")(s)
.map_err(|_| ParseCandidateError::NotCandidate)?;
let s = skip_spaces(s)?;
let (s, foundation) = take_while_m_n::<_, _, nom::error::Error<_>>(1, 32, is_ice_char)(s)
.map_err(|_| ParseCandidateError::BadFoundation)?;
let s = skip_spaces(s)?;
let (s, component_id): (_, usize) = map_res(
take_while_m_n::<_, _, nom::error::Error<_>>(1, 3, is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadComponentId)?;
let s = skip_spaces(s)?;
let (s, transport_type) = take_while1::<_, _, nom::error::Error<_>>(is_alphabetic)(s)
.map_err(|_| ParseCandidateError::BadTransportType)?;
let transport_type = TransportType::from_str(transport_type)?;
let s = skip_spaces(s)?;
let (s, priority) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadPriority)?;
let s = skip_spaces(s)?;
// FIXME: proper address parsing
let (s, connection_address) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_part_of_socket_addr),
|s: &str| s.parse(),
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let s = skip_spaces(s)?;
let (s, port) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_digit),
str::parse,
)(s)
.map_err(|_| ParseCandidateError::BadAddress)?;
let address = SocketAddr::new(connection_address, port);
let s = skip_spaces(s)?;
let (s, candidate_type) = map_res(
take_while1::<_, _, nom::error::Error<_>>(is_alphabetic),
CandidateType::from_str,
)(s)
.map_err(|_| ParseCandidateError::BadCandidateType)?;
let mut builder = Candidate::builder(
component_id,
candidate_type,
transport_type,
foundation,
address,
)
.priority(priority)
.base_address(address);
let mut iter_s = s;
let mut expected_next = None;
let mut raddr = None;
while !iter_s.is_empty() {
let s = skip_spaces(iter_s)?;
let (s, ext_key) = take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
let s = skip_spaces(s)?;
let (s, ext_value) =
take_while1::<_, _, nom::error::Error<_>>(is_part_of_byte_string)(s)
.map_err(|_| ParseCandidateError::BadExtension)?;
if let Some(expected_next) = expected_next {
if ext_key != expected_next {
return Err(ParseCandidateError::BadExtension);
}
if expected_next == "rport" {
let raddr = raddr.take().ok_or(ParseCandidateError::BadAddress)?;
let port =
str::parse(ext_value).map_err(|_| ParseCandidateError::BadAddress)?;
builder = builder.related_address(SocketAddr::new(raddr, port));
} else {
unreachable!();
}
} else {
match ext_key {
"raddr" => {
raddr = Some(
ext_value
.parse()
.map_err(|_| ParseCandidateError::BadAddress)?,
);
expected_next = Some("rport");
}
"tcptype" => {
let tcp_type = TcpType::from_str(ext_value)?;
builder = builder.tcp_type(tcp_type);
}
_ => builder = builder.extension(ext_key, ext_value),
}
}
iter_s = s;
}
if builder.ttype == TransportType::Tcp && builder.tcp_type == None {
return Err(ParseCandidateError::BadTransportType);
}
Ok(builder.build())
}