/*
* Copyright (c) 2010, 2011, Jonathan Schleifer <js@webkeks.org>
*
* https://webkeks.org/git/?p=objirc.git
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#define IRC_CONNECTION_M
#include <stdarg.h>
#import <ObjFW/OFString.h>
#import <ObjFW/OFArray.h>
#import <ObjFW/OFMutableDictionary.h>
#import <ObjFW/OFTCPSocket.h>
#import <ObjFW/OFAutoreleasePool.h>
#import <ObjFW/OFInvalidEncodingException.h>
#import <ObjFW/macros.h>
#import "IRCConnection.h"
#import "IRCUser.h"
@implementation IRCConnection
- init
{
self = [super init];
@try {
_channels = [[OFMutableDictionary alloc] init];
_port = 6667;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_socket release];
[_server release];
[_nickname release];
[_username release];
[_realname release];
[_channels release];
[super dealloc];
}
- (void)setServer: (OFString*)server
{
OF_SETTER(_server, server, YES, YES)
}
- (OFString*)server
{
OF_GETTER(_server, YES)
}
- (void)setPort: (uint16_t)port
{
_port = port;
}
- (uint16_t)port
{
return _port;
}
- (void)setNickname: (OFString*)nickname
{
OF_SETTER(_nickname, nickname, YES, YES)
}
- (OFString*)nickname
{
OF_GETTER(_nickname, YES)
}
- (void)setUsername: (OFString*)username
{
OF_SETTER(_username, username, YES, YES)
}
- (OFString*)username
{
OF_GETTER(_username, YES)
}
- (void)setRealname: (OFString*)realname
{
OF_SETTER(_realname, realname, YES, YES)
}
- (OFString*)realname
{
OF_GETTER(_realname, YES)
}
- (void)setDelegate: (id <IRCConnectionDelegate>)delegate
{
_delegate = delegate;
}
- (id <IRCConnectionDelegate>)delegate
{
OF_GETTER(_delegate, NO)
}
- (OFTCPSocket*)socket
{
OF_GETTER(_socket, YES)
}
- (void)connect
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
_socket = [[OFTCPSocket alloc] init];
[_socket connectToHost: _server
port: _port];
[self sendLineWithFormat: @"NICK %@", _nickname];
[self sendLineWithFormat: @"USER %@ * 0 :%@", _username, _realname];
[pool release];
}
- (void)disconnect
{
[self disconnectWithReason: nil];
}
- (void)disconnectWithReason: (OFString*)reason
{
reason = [[reason componentsSeparatedByString: @"\n"] firstObject];
if (reason == nil)
[self sendLine: @"QUIT"];
else
[self sendLineWithFormat: @"QUIT :%@", reason];
}
- (void)joinChannel: (OFString*)channel
{
channel = [[channel componentsSeparatedByString: @"\n"] firstObject];
[self sendLineWithFormat: @"JOIN %@", channel];
}
- (void)leaveChannel: (OFString*)channel
{
[self leaveChannel: channel
reason: nil];
}
- (void)leaveChannel: (OFString*)channel
reason: (OFString*)reason
{
channel = [[channel componentsSeparatedByString: @"\n"] firstObject];
reason = [[reason componentsSeparatedByString: @"\n"] firstObject];
if (reason == nil)
[self sendLineWithFormat: @"PART %@", channel];
else
[self sendLineWithFormat: @"PART %@ :%@", channel, reason];
[_channels removeObjectForKey: channel];
}
- (void)sendLine: (OFString*)line
{
if ([_delegate respondsToSelector: @selector(connection:didSendLine:)])
[_delegate connection: self
didSendLine: line];
[_socket writeLine: line];
}
- (void)sendLineWithFormat: (OFConstantString*)format, ...
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFString *line;
va_list args;
va_start(args, format);
line = [[[OFString alloc] initWithFormat: format
arguments: args] autorelease];
va_end(args);
[self sendLine: line];
[pool release];
}
- (void)sendMessage: (OFString*)msg
to: (OFString*)to
{
OFArray *lines = [msg componentsSeparatedByString: @"\n"];
OFEnumerator *enumerator = [lines objectEnumerator];
OFString *line;
while ((line = [enumerator nextObject]) != nil)
[self sendLineWithFormat: @"PRIVMSG %@ :%@", to, line];
}
- (void)sendNotice: (OFString*)notice
to: (OFString*)to
{
OFArray *lines = [notice componentsSeparatedByString: @"\n"];
OFEnumerator *enumerator = [lines objectEnumerator];
OFString *line;
while ((line = [enumerator nextObject]) != nil)
[self sendLineWithFormat: @"NOTICE %@ :%@", to, line];
}
- (void)kickUser: (OFString*)user
channel: (OFString*)channel
reason: (OFString*)reason
{
reason = [[reason componentsSeparatedByString: @"\n"] firstObject];
[self sendLineWithFormat: @"KICK %@ %@ :%@", channel, user, reason];
}
- (void)changeNicknameTo: (OFString*)nickname
{
nickname = [[nickname componentsSeparatedByString: @"\n"]
firstObject];
[self sendLineWithFormat: @"NICK %@", nickname];
}
- (void)IRC_processLine: (OFString*)line
{
OFArray *components;
OFString *action = nil;
if ([_delegate respondsToSelector:
@selector(connection:didReceiveLine:)])
[_delegate connection: self
didReceiveLine: line];
components = [line componentsSeparatedByString: @" "];
/* PING */
if ([components count] == 2 &&
[[components firstObject] isEqual: @"PING"]) {
OFMutableString *s = [[line mutableCopy] autorelease];
[s replaceOccurrencesOfString: @"PING"
withString: @"PONG"];
[self sendLine: s];
return;
}
action = [[components objectAtIndex: 1] uppercaseString];
/* Connected */
if ([action isEqual: @"001"] && [components count] >= 4) {
if ([_delegate respondsToSelector:
@selector(connectionWasEstablished:)])
[_delegate connectionWasEstablished: self];
return;
}
/* JOIN */
if ([action isEqual: @"JOIN"] && [components count] == 3) {
OFString *who = [components objectAtIndex: 0];
OFString *where = [components objectAtIndex: 2];
IRCUser *user;
OFMutableSet *channel;
who = [who substringWithRange: of_range(1, [who length] - 1)];
user = [IRCUser IRCUserWithString: who];
if ([who hasPrefix:
[_nickname stringByAppendingString: @"!"]]) {
channel = [OFMutableSet set];
[_channels setObject: channel
forKey: where];
} else
channel = [_channels objectForKey: where];
[channel addObject: [user nickname]];
if ([_delegate respondsToSelector:
@selector(connection:didSeeUser:joinChannel:)])
[_delegate connection: self
didSeeUser: user
joinChannel: where];
return;
}
/* NAMES reply */
if ([action isEqual: @"353"] && [components count] >= 6) {
OFString *where;
OFMutableSet *channel;
OFArray *users;
size_t pos;
OFEnumerator *enumerator;
OFString *user;
where = [components objectAtIndex: 4];
if ((channel = [_channels objectForKey: where]) == nil) {
/* We did not request that */
return;
}
pos = [[components objectAtIndex: 0] length] +
[[components objectAtIndex: 1] length] +
[[components objectAtIndex: 2] length] +
[[components objectAtIndex: 3] length] +
[[components objectAtIndex: 4] length] + 6;
users = [[line substringWithRange:
of_range(pos, [line length] - pos)]
componentsSeparatedByString: @" "];
enumerator = [users objectEnumerator];
while ((user = [enumerator nextObject]) != nil) {
if ([user hasPrefix: @"@"] || [user hasPrefix: @"+"] ||
[user hasPrefix: @"%"] || [user hasPrefix: @"*"])
user = [user substringWithRange:
of_range(1, [user length] - 1)];
[channel addObject: user];
}
if ([_delegate respondsToSelector:
@selector(connection:didReceiveNamesForChannel:)])
[_delegate connection: self
didReceiveNamesForChannel: where];
return;
}
/* PART */
if ([action isEqual: @"PART"] && [components count] >= 3) {
OFString *who = [components objectAtIndex: 0];
OFString *where = [components objectAtIndex: 2];
IRCUser *user;
OFMutableSet *channel;
OFString *reason = nil;
size_t pos = [who length] + 1 +
[[components objectAtIndex: 1] length] + 1 + [where length];
who = [who substringWithRange: of_range(1, [who length] - 1)];
user = [IRCUser IRCUserWithString: who];
channel = [_channels objectForKey: where];
if ([components count] > 3)
reason = [line substringWithRange:
of_range(pos + 2, [line length] - pos - 2)];
[channel removeObject: [user nickname]];
if ([_delegate respondsToSelector:
@selector(connection:didSeeUser:leaveChannel:reason:)])
[_delegate connection: self
didSeeUser: user
leaveChannel: where
reason: reason];
return;
}
/* KICK */
if ([action isEqual: @"KICK"] && [components count] >= 4) {
OFString *who = [components objectAtIndex: 0];
OFString *where = [components objectAtIndex: 2];
OFString *whom = [components objectAtIndex: 3];
IRCUser *user;
OFMutableSet *channel;
OFString *reason = nil;
size_t pos = [who length] + 1 +
[[components objectAtIndex: 1] length] + 1 +
[where length] + 1 + [whom length];
who = [who substringWithRange: of_range(1, [who length] - 1)];
user = [IRCUser IRCUserWithString: who];
channel = [_channels objectForKey: where];
if ([components count] > 4)
reason = [line substringWithRange:
of_range(pos + 2, [line length] - pos - 2)];
[channel removeObject: [user nickname]];
if ([_delegate respondsToSelector:
@selector(connection:didSeeUser:kickUser:channel:reason:)])
[_delegate connection: self
didSeeUser: user
kickUser: whom
channel: where
reason: reason];
return;
}
/* QUIT */
if ([action isEqual: @"QUIT"] && [components count] >= 2) {
OFString *who = [components objectAtIndex: 0];
IRCUser *user;
OFString *reason = nil;
size_t pos = [who length] + 1 +
[[components objectAtIndex: 1] length];
OFEnumerator *enumerator;
OFMutableSet *channel;
who = [who substringWithRange: of_range(1, [who length] - 1)];
user = [IRCUser IRCUserWithString: who];
if ([components count] > 2)
reason = [line substringWithRange:
of_range(pos + 2, [line length] - pos - 2)];
enumerator = [_channels objectEnumerator];
while ((channel = [enumerator nextObject]) != nil)
[channel removeObject: [user nickname]];
if ([_delegate respondsToSelector:
@selector(connection:didSeeUserQuit:reason:)])
[_delegate connection: self
didSeeUserQuit: user
reason: reason];
return;
}
/* NICK */
if ([action isEqual: @"NICK"] && [components count] == 3) {
OFString *who = [components objectAtIndex: 0];
OFString *nickname = [components objectAtIndex: 2];
IRCUser *user;
OFEnumerator *enumerator;
OFMutableSet *channel;
who = [who substringWithRange: of_range(1, [who length] - 1)];
nickname = [nickname substringWithRange:
of_range(1, [nickname length] - 1)];
user = [IRCUser IRCUserWithString: who];
if ([[user nickname] isEqual: _nickname]) {
[_nickname release];
_nickname = [nickname copy];
}
enumerator = [_channels objectEnumerator];
while ((channel = [enumerator nextObject]) != nil) {
if ([channel containsObject: [user nickname]]) {
[channel removeObject: [user nickname]];
[channel addObject: nickname];
}
}
if ([_delegate respondsToSelector:
@selector(connection:didSeeUser:changeNicknameTo:)])
[_delegate connection: self
didSeeUser: user
changeNicknameTo: nickname];
return;
}
/* PRIVMSG */
if ([action isEqual: @"PRIVMSG"] && [components count] >= 4) {
OFString *from = [components objectAtIndex: 0];
OFString *to = [components objectAtIndex: 2];
IRCUser *user;
OFString *msg;
size_t pos = [from length] + 1 +
[[components objectAtIndex: 1] length] + 1 + [to length];
from = [from substringWithRange:
of_range(1, [from length] - 1)];
msg = [line substringWithRange:
of_range(pos + 2, [line length] - pos - 2)];
user = [IRCUser IRCUserWithString: from];
if (![to isEqual: _nickname]) {
if ([_delegate respondsToSelector: @selector(connection:
didReceiveMessage:channel:user:)])
[_delegate connection: self
didReceiveMessage: msg
channel: to
user: user];
} else {
if ([_delegate respondsToSelector: @selector(connection:
didReceivePrivateMessage:user:)])
[_delegate connection: self
didReceivePrivateMessage: msg
user: user];
}
return;
}
/* NOTICE */
if ([action isEqual: @"NOTICE"] && [components count] >= 4) {
OFString *from = [components objectAtIndex: 0];
OFString *to = [components objectAtIndex: 2];
IRCUser *user = nil;
OFString *notice;
size_t pos = [from length] + 1 +
[[components objectAtIndex: 1] length] + 1 + [to length];
from = [from substringWithRange:
of_range(1, [from length] - 1)];
notice = [line substringWithRange:
of_range(pos + 2, [line length] - pos - 2)];
if (![from containsString: @"!"] || [to isEqual: @"*"]) {
/* System message - ignore for now */
return;
}
user = [IRCUser IRCUserWithString: from];
if (![to isEqual: _nickname]) {
if ([_delegate respondsToSelector: @selector(connection:
didReceiveNotice:channel:user:)])
[_delegate connection: self
didReceiveNotice: notice
channel: to
user: user];
} else {
if ([_delegate respondsToSelector:
@selector(connection:didReceiveNotice:user:)])
[_delegate connection: self
didReceiveNotice: notice
user: user];
}
return;
}
}
- (void)processLine: (OFString*)line
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
[self IRC_processLine: line];
[pool release];
}
- (BOOL)socket: (OFTCPSocket*)socket
didReceiveISO88591Line: (OFString*)line
exception: (OFException*)exception
{
if (line != nil) {
[self IRC_processLine: line];
[socket asyncReadLineWithTarget: self
selector: @selector(socket:
didReceiveLine:
exception:)];
}
return NO;
}
- (BOOL)socket: (OFTCPSocket*)socket
didReceiveLine: (OFString*)line
exception: (OFException*)exception
{
if (line != nil) {
[self IRC_processLine: line];
return YES;
}
if ([exception isKindOfClass: [OFInvalidEncodingException class]])
[socket asyncReadLineWithEncoding: OF_STRING_ENCODING_ISO_8859_1
target: self
selector: @selector(socket:
didReceiveISO88591Line:
exception:)];
return NO;
}
- (void)handleConnection
{
[_socket asyncReadLineWithTarget: self
selector: @selector(socket:didReceiveLine:
exception:)];
}
- (OFSet*)usersInChannel: (OFString*)channel
{
return [[[_channels objectForKey: channel] copy] autorelease];
}
@end