599 lines
23 KiB
Rust
599 lines
23 KiB
Rust
//! Interface for working with IRC Servers.
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//!
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//! There are currently two recommended ways to work
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use std::borrow::ToOwned;
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use std::collections::HashMap;
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use std::error::Error as StdError;
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use std::io::{BufReader, BufWriter, Error, ErrorKind, Result};
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use std::sync::{Mutex, RwLock};
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use std::iter::Map;
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use client::conn::{Connection, NetStream};
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use client::data::{Command, Config, Message, Response, User};
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use client::data::Command::{JOIN, NICK, NICKSERV, PONG, MODE};
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use client::data::kinds::{IrcRead, IrcWrite};
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#[cfg(feature = "ctcp")] use time::now;
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pub mod utils;
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/// Trait describing core Server functionality.
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pub trait Server<'a, T, U> {
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/// Gets the configuration being used with this Server.
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fn config(&self) -> &Config;
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/// Sends a Command to this Server.
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fn send(&self, command: Command) -> Result<()>;
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/// Gets an Iterator over Messages received by this Server.
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fn iter(&'a self) -> ServerIterator<'a, T, U>;
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/// Gets an Iterator over Commands received by this Server.
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fn iter_cmd(&'a self) -> ServerCmdIterator<'a, T, U>;
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/// Gets a list of Users in the specified channel. This will be none if the channel is not
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/// being tracked, or if tracking is not supported altogether.
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fn list_users(&self, channel: &str) -> Option<Vec<User>>;
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}
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/// A thread-safe implementation of an IRC Server connection.
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pub struct IrcServer<T: IrcRead, U: IrcWrite> {
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/// The thread-safe IRC connection.
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conn: Connection<T, U>,
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/// The configuration used with this connection.
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config: Config,
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/// A thread-safe map of channels to the list of users in them.
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chanlists: Mutex<HashMap<String, Vec<User>>>,
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/// A thread-safe index to track the current alternative nickname being used.
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alt_nick_index: RwLock<usize>,
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}
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/// An IrcServer over a buffered NetStream.
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pub type NetIrcServer = IrcServer<BufReader<NetStream>, BufWriter<NetStream>>;
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impl IrcServer<BufReader<NetStream>, BufWriter<NetStream>> {
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/// Creates a new IRC Server connection from the configuration at the specified path,
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/// connecting immediately.
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pub fn new(config: &str) -> Result<NetIrcServer> {
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IrcServer::from_config(try!(Config::load_utf8(config)))
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}
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/// Creates a new IRC server connection from the specified configuration, connecting
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/// immediately.
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pub fn from_config(config: Config) -> Result<NetIrcServer> {
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let conn = try!(if config.use_ssl() {
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Connection::connect_ssl(config.server(), config.port())
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} else {
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Connection::connect(config.server(), config.port())
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});
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Ok(IrcServer { config: config, conn: conn, chanlists: Mutex::new(HashMap::new()),
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alt_nick_index: RwLock::new(0) })
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}
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/// Reconnects to the IRC server.
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pub fn reconnect(&self) -> Result<()> {
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self.conn.reconnect(self.config().server(), self.config.port())
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}
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}
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impl<'a, T: IrcRead, U: IrcWrite> Server<'a, T, U> for IrcServer<T, U> {
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fn config(&self) -> &Config {
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&self.config
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}
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#[cfg(feature = "encode")]
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fn send(&self, cmd: Command) -> Result<()> {
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self.conn.send(cmd, self.config.encoding())
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}
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#[cfg(not(feature = "encode"))]
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fn send(&self, cmd: Command) -> Result<()> {
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self.conn.send(cmd)
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}
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fn iter(&'a self) -> ServerIterator<'a, T, U> {
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ServerIterator::new(self)
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}
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fn iter_cmd(&'a self) -> ServerCmdIterator<'a, T, U> {
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self.iter().map(Command::from_message_io)
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}
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#[cfg(not(feature = "nochanlists"))]
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fn list_users(&self, chan: &str) -> Option<Vec<User>> {
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self.chanlists.lock().unwrap().get(&chan.to_owned()).cloned()
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}
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#[cfg(feature = "nochanlists")]
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fn list_users(&self, chan: &str) -> Option<Vec<User>> {
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None
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}
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}
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impl<T: IrcRead, U: IrcWrite> IrcServer<T, U> {
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/// Creates an IRC server from the specified configuration, and any arbitrary Connection.
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pub fn from_connection(config: Config, conn: Connection<T, U>) -> IrcServer<T, U> {
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IrcServer { conn: conn, config: config, chanlists: Mutex::new(HashMap::new()),
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alt_nick_index: RwLock::new(0) }
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}
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/// Gets a reference to the IRC server's connection.
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pub fn conn(&self) -> &Connection<T, U> {
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&self.conn
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}
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/// Handles messages internally for basic bot functionality.
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fn handle_message(&self, msg: &Message) {
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if let Some(resp) = Response::from_message(msg) {
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if resp == Response::RPL_NAMREPLY {
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if cfg!(not(feature = "nochanlists")) {
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if let Some(users) = msg.suffix.clone() {
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if msg.args.len() == 3 {
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// TODO: replace with slice pattern matching when/if stable
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let ref chan = msg.args[2];
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for user in users.split(" ") {
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if match self.chanlists.lock().unwrap().get_mut(chan) {
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Some(vec) => { vec.push(User::new(user)); false },
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None => true,
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} {
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self.chanlists.lock().unwrap().insert(chan.clone(),
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vec!(User::new(user)));
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}
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}
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}
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}
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}
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} else if resp == Response::RPL_ENDOFMOTD || resp == Response::ERR_NOMOTD {
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if self.config.nick_password() != "" {
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self.send(NICKSERV(
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format!("IDENTIFY {}", self.config.nick_password())
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)).unwrap();
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}
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if self.config.umodes() != "" {
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self.send(MODE(self.config.nickname().to_owned(),
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self.config.umodes().to_owned(), None)).unwrap();
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}
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for chan in self.config.channels().into_iter() {
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self.send(JOIN(chan.to_owned(), None)).unwrap();
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}
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} else if resp == Response::ERR_NICKNAMEINUSE ||
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resp == Response::ERR_ERRONEOUSNICKNAME {
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let alt_nicks = self.config.get_alternate_nicknames();
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let mut index = self.alt_nick_index.write().unwrap();
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if *index >= alt_nicks.len() {
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panic!("All specified nicknames were in use.")
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} else {
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self.send(NICK(alt_nicks[*index].to_owned())).unwrap();
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*index += 1;
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}
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}
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return
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}
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if &msg.command[..] == "PING" {
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self.send(PONG(msg.suffix.as_ref().unwrap().to_owned(), None)).unwrap();
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} else if cfg!(not(feature = "nochanlists")) &&
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(&msg.command[..] == "JOIN" || &msg.command[..] == "PART") {
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let chan = match msg.suffix {
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Some(ref suffix) => &suffix[..],
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None => &msg.args[0][..],
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};
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if let Some(vec) = self.chanlists.lock().unwrap().get_mut(&chan.to_string()) {
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if let Some(ref src) = msg.prefix {
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if let Some(i) = src.find('!') {
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if &msg.command[..] == "JOIN" {
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vec.push(User::new(&src[..i]));
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} else {
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if let Some(n) = vec.iter().position(|x| x.get_name() == &src[..i]) {
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vec.swap_remove(n);
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}
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}
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}
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}
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}
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} else if let ("MODE", 3) = (&msg.command[..], msg.args.len()) {
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let ref chan = msg.args[0]; // TODO: replace with slice pattern matching when/if stable
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let ref mode = msg.args[1];
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let ref user = msg.args[2];
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if cfg!(not(feature = "nochanlists")) {
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if let Some(vec) = self.chanlists.lock().unwrap().get_mut(chan) {
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if let Some(n) = vec.iter().position(|x| &x.get_name() == user) {
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vec[n].update_access_level(&mode);
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}
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}
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}
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} else {
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self.handle_ctcp(msg);
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}
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}
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/// Handles CTCP requests if the CTCP feature is enabled.
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#[cfg(feature = "ctcp")]
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fn handle_ctcp(&self, msg: &Message) {
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let source = match msg.prefix {
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Some(ref source) => source.find('!').map_or(&source[..], |i| &source[..i]),
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None => "",
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};
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if let ("PRIVMSG", 1) = (&msg.command[..], msg.args.len()) {
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// TODO: replace with slice pattern matching when/if stable
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let ref target = msg.args[0];
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let resp = if target.starts_with("#") { &target[..] } else { source };
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match msg.suffix {
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Some(ref msg) if msg.starts_with("\u{001}") => {
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let tokens: Vec<_> = {
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let end = if msg.ends_with("\u{001}") {
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msg.len() - 1
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} else {
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msg.len()
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};
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msg[1..end].split(" ").collect()
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};
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match tokens[0] {
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"FINGER" => self.send_ctcp_internal(resp, &format!("FINGER :{} ({})",
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self.config.real_name(),
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self.config.username())),
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"VERSION" => self.send_ctcp_internal(resp, "VERSION irc:git:Rust"),
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"SOURCE" => {
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self.send_ctcp_internal(resp, "SOURCE https://github.com/aatxe/irc");
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self.send_ctcp_internal(resp, "SOURCE");
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},
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"PING" => self.send_ctcp_internal(resp, &format!("PING {}", tokens[1])),
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"TIME" => self.send_ctcp_internal(resp, &format!("TIME :{}",
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now().rfc822z())),
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"USERINFO" => self.send_ctcp_internal(resp, &format!("USERINFO :{}",
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self.config.user_info())),
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_ => {}
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}
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},
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_ => {}
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}
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}
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}
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/// Sends a CTCP-escaped message.
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#[cfg(feature = "ctcp")]
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fn send_ctcp_internal(&self, target: &str, msg: &str) {
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self.send(Command::NOTICE(target.to_owned(), format!("\u{001}{}\u{001}", msg))).unwrap();
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}
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/// Handles CTCP requests if the CTCP feature is enabled.
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#[cfg(not(feature = "ctcp"))] fn handle_ctcp(&self, _: &Message) {}
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}
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/// An Iterator over an IrcServer's incoming Messages.
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pub struct ServerIterator<'a, T: IrcRead, U: IrcWrite> {
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server: &'a IrcServer<T, U>
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}
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/// An Iterator over an IrcServer's incoming Commands.
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pub type ServerCmdIterator<'a, T, U> =
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Map<ServerIterator<'a, T, U>, fn(Result<Message>) -> Result<Command>>;
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impl<'a, T: IrcRead, U: IrcWrite> ServerIterator<'a, T, U> {
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/// Creates a new ServerIterator for the desired IrcServer.
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pub fn new(server: &IrcServer<T, U>) -> ServerIterator<T, U> {
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ServerIterator { server: server }
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}
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/// Gets the next line from the connection.
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#[cfg(feature = "encode")]
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fn get_next_line(&self) -> Result<String> {
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self.server.conn.recv(self.server.config.encoding())
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}
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/// Gets the next line from the connection.
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#[cfg(not(feature = "encode"))]
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fn get_next_line(&self) -> Result<String> {
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self.server.conn.recv()
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}
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}
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impl<'a, T: IrcRead, U: IrcWrite> Iterator for ServerIterator<'a, T, U> {
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type Item = Result<Message>;
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fn next(&mut self) -> Option<Result<Message>> {
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let res = self.get_next_line().and_then(|msg|
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match msg.parse() {
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Ok(msg) => {
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self.server.handle_message(&msg);
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Ok(msg)
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},
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Err(_) => Err(Error::new(ErrorKind::InvalidInput,
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&format!("Failed to parse message. (Message: {})", msg)[..]
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))
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}
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);
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match res {
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Err(ref err) if err.kind() == ErrorKind::ConnectionAborted => None,
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Err(ref err) if err.kind() == ErrorKind::ConnectionReset => None,
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Err(ref err) if err.description() == "EOF" => None,
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_ => Some(res)
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::{IrcServer, Server};
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use std::default::Default;
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use std::io::{Cursor, sink};
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use client::conn::Connection;
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use client::data::{Config, User};
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use client::data::command::Command::PRIVMSG;
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use client::data::kinds::IrcRead;
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use client::data::message::ToMessage;
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use client::test::buf_empty;
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pub fn test_config() -> Config {
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Config {
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owners: Some(vec![format!("test")]),
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nickname: Some(format!("test")),
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alt_nicks: Some(vec![format!("test2")]),
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server: Some(format!("irc.test.net")),
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channels: Some(vec![format!("#test"), format!("#test2")]),
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user_info: Some(format!("Testing.")),
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.. Default::default()
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}
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}
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pub fn get_server_value<T: IrcRead>(server: IrcServer<T, Vec<u8>>) -> String {
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let vec = server.conn().writer().clone();
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String::from_utf8(vec).unwrap()
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}
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#[test]
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fn iterator() {
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let exp = "PRIVMSG test :Hi!\r\nPRIVMSG test :This is a test!\r\n\
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:test!test@test JOIN #test\r\n";
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let server = IrcServer::from_connection(test_config(), Connection::new(
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Cursor::new(exp.as_bytes().to_vec()), sink()
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));
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let mut messages = String::new();
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for message in server.iter() {
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messages.push_str(&message.unwrap().into_string());
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}
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assert_eq!(&messages[..], exp);
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}
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#[test]
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fn iterator_cmd() {
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let exp = "PRIVMSG test :Hi!\r\nPRIVMSG test :This is a test!\r\n\
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JOIN #test\r\n";
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let server = IrcServer::from_connection(test_config(), Connection::new(
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Cursor::new(exp.as_bytes().to_vec()), sink()
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));
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let mut messages = String::new();
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for command in server.iter_cmd() {
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messages.push_str(&command.unwrap().to_message().into_string());
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}
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assert_eq!(&messages[..], exp);
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}
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#[test]
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fn handle_message() {
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let value = "PING :irc.test.net\r\n:irc.test.net 376 test :End of /MOTD command.\r\n";
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let server = IrcServer::from_connection(test_config(), Connection::new(
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Cursor::new(value.as_bytes().to_vec()), Vec::new()
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));
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for message in server.iter() {
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println!("{:?}", message);
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}
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assert_eq!(&get_server_value(server)[..],
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"PONG :irc.test.net\r\nJOIN #test\r\nJOIN #test2\r\n");
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}
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#[test]
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fn handle_end_motd_with_nick_password() {
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let value = ":irc.test.net 376 test :End of /MOTD command.\r\n";
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let server = IrcServer::from_connection(Config {
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nick_password: Some(format!("password")),
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channels: Some(vec![format!("#test"), format!("#test2")]),
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.. Default::default()
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}, Connection::new(
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Cursor::new(value.as_bytes().to_vec()), Vec::new()
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));
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for message in server.iter() {
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println!("{:?}", message);
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}
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assert_eq!(&get_server_value(server)[..],
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"NICKSERV IDENTIFY password\r\nJOIN #test\r\nJOIN #test2\r\n");
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}
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#[test]
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fn handle_end_motd_with_umodes() {
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let value = ":irc.test.net 376 test :End of /MOTD command.\r\n";
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let server = IrcServer::from_connection(Config {
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nickname: Some(format!("test")),
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umodes: Some(format!("+B")),
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channels: Some(vec![format!("#test"), format!("#test2")]),
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.. Default::default()
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}, Connection::new(
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Cursor::new(value.as_bytes().to_vec()), Vec::new()
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));
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for message in server.iter() {
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println!("{:?}", message);
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}
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assert_eq!(&get_server_value(server)[..],
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"MODE test +B\r\nJOIN #test\r\nJOIN #test2\r\n");
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}
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#[test]
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fn nickname_in_use() {
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let value = ":irc.pdgn.co 433 * test :Nickname is already in use.";
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let server = IrcServer::from_connection(test_config(), Connection::new(
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Cursor::new(value.as_bytes().to_vec()), Vec::new()
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));
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for message in server.iter() {
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println!("{:?}", message);
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}
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assert_eq!(&get_server_value(server)[..], "NICK :test2\r\n");
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}
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#[test]
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#[should_panic(message = "All specified nicknames were in use.")]
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fn ran_out_of_nicknames() {
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let value = ":irc.pdgn.co 433 * test :Nickname is already in use.\r\n\
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:irc.pdgn.co 433 * test2 :Nickname is already in use.\r\n";
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let server = IrcServer::from_connection(test_config(), Connection::new(
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Cursor::new(value.as_bytes().to_vec()), Vec::new()
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));
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for message in server.iter() {
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println!("{:?}", message);
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}
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}
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#[test]
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fn send() {
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let server = IrcServer::from_connection(test_config(), Connection::new(
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buf_empty(), Vec::new()
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));
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assert!(server.send(PRIVMSG(format!("#test"), format!("Hi there!"))).is_ok());
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assert_eq!(&get_server_value(server)[..], "PRIVMSG #test :Hi there!\r\n");
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}
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#[cfg(not(feature = "nochanlists"))]
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#[test]
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fn user_tracking_names() {
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let value = ":irc.test.net 353 test = #test :test ~owner &admin\r\n";
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let server = IrcServer::from_connection(test_config(), Connection::new(
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Cursor::new(value.as_bytes().to_vec()), sink()
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));
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for message in server.iter() {
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println!("{:?}", message);
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}
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assert_eq!(server.list_users("#test").unwrap(),
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vec![User::new("test"), User::new("~owner"), User::new("&admin")])
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}
|
|
|
|
#[cfg(not(feature = "nochanlists"))]
|
|
#[test]
|
|
fn user_tracking_names_join() {
|
|
let value = ":irc.test.net 353 test = #test :test ~owner &admin\r\n\
|
|
:test2!test@test JOIN #test\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), sink()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(server.list_users("#test").unwrap(),
|
|
vec![User::new("test"), User::new("~owner"), User::new("&admin"), User::new("test2")])
|
|
}
|
|
|
|
#[cfg(not(feature = "nochanlists"))]
|
|
#[test]
|
|
fn user_tracking_names_part() {
|
|
let value = ":irc.test.net 353 test = #test :test ~owner &admin\r\n\
|
|
:owner!test@test PART #test\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), sink()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(server.list_users("#test").unwrap(),
|
|
vec![User::new("test"), User::new("&admin")])
|
|
}
|
|
|
|
#[cfg(not(feature = "nochanlists"))]
|
|
#[test]
|
|
fn user_tracking_names_mode() {
|
|
let value = ":irc.test.net 353 test = #test :+test ~owner &admin\r\n\
|
|
:test!test@test MODE #test +o test\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), sink()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(server.list_users("#test").unwrap(),
|
|
vec![User::new("@test"), User::new("~owner"), User::new("&admin")]);
|
|
let mut exp = User::new("@test");
|
|
exp.update_access_level("+v");
|
|
assert_eq!(server.list_users("#test").unwrap()[0].highest_access_level(),
|
|
exp.highest_access_level());
|
|
// The following tests if the maintained user contains the same entries as what is expected
|
|
// but ignores the ordering of these entries.
|
|
let mut levels = server.list_users("#test").unwrap()[0].access_levels();
|
|
levels.retain(|l| exp.access_levels().contains(l));
|
|
assert_eq!(levels.len(), exp.access_levels().len());
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "ctcp")]
|
|
fn finger_response() {
|
|
let value = ":test!test@test PRIVMSG test :\u{001}FINGER\u{001}\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), Vec::new()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(&get_server_value(server)[..], "NOTICE test :\u{001}FINGER :test (test)\u{001}\
|
|
\r\n");
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "ctcp")]
|
|
fn version_response() {
|
|
let value = ":test!test@test PRIVMSG test :\u{001}VERSION\u{001}\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), Vec::new()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(&get_server_value(server)[..], "NOTICE test :\u{001}VERSION irc:git:Rust\u{001}\
|
|
\r\n");
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "ctcp")]
|
|
fn source_response() {
|
|
let value = ":test!test@test PRIVMSG test :\u{001}SOURCE\u{001}\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), Vec::new()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(&get_server_value(server)[..],
|
|
"NOTICE test :\u{001}SOURCE https://github.com/aatxe/irc\u{001}\r\n\
|
|
NOTICE test :\u{001}SOURCE\u{001}\r\n");
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "ctcp")]
|
|
fn ctcp_ping_response() {
|
|
let value = ":test!test@test PRIVMSG test :\u{001}PING test\u{001}\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), Vec::new()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(&get_server_value(server)[..], "NOTICE test :\u{001}PING test\u{001}\r\n");
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "ctcp")]
|
|
fn time_response() {
|
|
let value = ":test!test@test PRIVMSG test :\u{001}TIME\u{001}\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), Vec::new()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
let val = get_server_value(server);
|
|
assert!(val.starts_with("NOTICE test :\u{001}TIME :"));
|
|
assert!(val.ends_with("\u{001}\r\n"));
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "ctcp")]
|
|
fn user_info_response() {
|
|
let value = ":test!test@test PRIVMSG test :\u{001}USERINFO\u{001}\r\n";
|
|
let server = IrcServer::from_connection(test_config(), Connection::new(
|
|
Cursor::new(value.as_bytes().to_vec()), Vec::new()
|
|
));
|
|
for message in server.iter() {
|
|
println!("{:?}", message);
|
|
}
|
|
assert_eq!(&get_server_value(server)[..], "NOTICE test :\u{001}USERINFO :Testing.\u{001}\
|
|
\r\n");
|
|
}
|
|
}
|