/*
* 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"
#import "IRCChannel.h"
@implementation IRCConnection
- init
{
self = [super init];
@try {
channels = [[OFMutableDictionary alloc] init];
port = 6667;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (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
{
return delegate;
}
- (OFTCPSocket*)socket
{
OF_GETTER(sock, YES)
}
- (void)connect
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
sock = [[OFTCPSocket alloc] init];
[sock 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
{
if (reason == nil)
[self sendLine: @"QUIT"];
else
[self sendLineWithFormat: @"QUIT :%@", reason];
}
- (void)joinChannel: (OFString*)channelName
{
[self sendLineWithFormat: @"JOIN %@", channelName];
}
- (void)leaveChannel: (IRCChannel*)channel
{
[self leaveChannel: channel
withReason: nil];
}
- (void)leaveChannel: (IRCChannel*)channel
withReason: (OFString*)reason
{
if (reason == nil)
[self sendLineWithFormat: @"PART %@", [channel name]];
else
[self sendLineWithFormat: @"PART %@ :%@",
[channel name], reason];
[channels removeObjectForKey: [channel name]];
}
- (void)sendLine: (OFString*)line
{
[delegate connection: self
didSendLine: line];
[sock 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
toChannel: (IRCChannel*)channel
{
[self sendLineWithFormat: @"PRIVMSG %@ :%@", [channel name], msg];
}
- (void)sendMessage: (OFString*)msg
toUser: (OFString*)user
{
[self sendLineWithFormat: @"PRIVMSG %@ :%@", user, msg];
}
- (void)sendNotice: (OFString*)notice
toUser: (OFString*)user
{
[self sendLineWithFormat: @"NOTICE %@ :%@", user, notice];
}
- (void)sendNotice: (OFString*)notice
toChannel: (IRCChannel*)channel
{
[self sendLineWithFormat: @"NOTICE %@ :%@", [channel name], notice];
}
- (void)kickUser: (OFString*)user
fromChannel: (IRCChannel*)channel
withReason: (OFString*)reason
{
[self sendLineWithFormat: @"KICK %@ %@ :%@",
[channel name], user, reason];
}
- (void)changeNicknameTo: (OFString*)nickname_
{
[self sendLineWithFormat: @"NICK %@", nickname_];
}
- (void)IRC_processLine: (OFString*)line
{
OFArray *components;
OFString *action = nil;
[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) {
[delegate connectionWasEstablished: self];
return;
}
/* JOIN */
if ([action isEqual: @"JOIN"] && [components count] == 3) {
OFString *who = [components objectAtIndex: 0];
OFString *where = [components objectAtIndex: 2];
IRCUser *user;
IRCChannel *channel;
who = [who substringWithRange: of_range(1, [who length] - 1)];
user = [IRCUser IRCUserWithString: who];
if ([who hasPrefix: [nickname stringByAppendingString: @"!"]]) {
channel = [IRCChannel channelWithName: where];
[channels setObject: channel
forKey: where];
} else
channel = [channels objectForKey: where];
[channel IRC_addUser: [user nickname]];
[delegate connection: self
didSeeUser: user
joinChannel: channel];
return;
}
/* NAMES reply */
if ([action isEqual: @"353"] && [components count] >= 6) {
IRCChannel *channel;
OFArray *users;
size_t pos;
OFEnumerator *enumerator;
OFString *user;
channel = [channels
objectForKey: [components objectAtIndex: 4]];
if (channel == 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 IRC_addUser: user];
}
[delegate connection: self
didReceiveNamesForChannel: channel];
return;
}
/* PART */
if ([action isEqual: @"PART"] && [components count] >= 3) {
OFString *who = [components objectAtIndex: 0];
OFString *where = [components objectAtIndex: 2];
IRCUser *user;
IRCChannel *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 IRC_removeUser: [user nickname]];
[delegate connection: self
didSeeUser: user
leaveChannel: channel
withReason: 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;
IRCChannel *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 IRC_removeUser: [user nickname]];
[delegate connection: self
didSeeUser: user
kickUser: whom
fromChannel: channel
withReason: 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;
IRCChannel *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 keyEnumerator];
while ((channel = [enumerator nextObject]) != nil)
[channel IRC_removeUser: [user nickname]];
[delegate connection: self
didSeeUserQuit: user
withReason: reason];
return;
}
/* NICK */
if ([action isEqual: @"NICK"] && [components count] == 3) {
OFString *who = [components objectAtIndex: 0];
OFString *newNickname = [components objectAtIndex: 2];
IRCUser *user;
OFEnumerator *enumerator;
IRCChannel *channel;
who = [who substringWithRange: of_range(1, [who length] - 1)];
newNickname = [newNickname substringWithRange:
of_range(1, [newNickname length] - 1)];
user = [IRCUser IRCUserWithString: who];
if ([[user nickname] isEqual: nickname]) {
[nickname release];
nickname = [[user nickname] copy];
}
enumerator = [channels keyEnumerator];
while ((channel = [enumerator nextObject]) != nil) {
if ([[channel users] containsObject: [user nickname]]) {
[channel IRC_removeUser: [user nickname]];
[channel IRC_addUser: newNickname];
}
}
[delegate connection: self
didSeeUser: user
changeNicknameTo: newNickname];
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]) {
IRCChannel *channel;
channel = [channels objectForKey: to];
[delegate connection: self
didReceiveMessage: msg
fromUser: user
inChannel: channel];
} else
[delegate connection: self
didReceivePrivateMessage: msg
fromUser: 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]) {
IRCChannel *channel;
channel = [channels objectForKey: to];
[delegate connection: self
didReceiveNotice: notice
fromUser: user
inChannel: channel];
} else
[delegate connection: self
didReceiveNotice: notice
fromUser: user];
return;
}
}
- (void)processLine: (OFString*)line
{
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
[self IRC_processLine: line];
[pool release];
}
- (BOOL)connection: (OFTCPSocket*)connection
didReceiveISO88591Line: (OFString*)line
exception: (OFException*)exception
{
if (line != nil) {
[self IRC_processLine: line];
[sock asyncReadLineWithTarget: self
selector: @selector(connection:
didReceiveLine:
exception:)];
}
return NO;
}
- (BOOL)connection: (OFTCPSocket*)connection
didReceiveLine: (OFString*)line
exception: (OFException*)exception
{
if (line != nil) {
[self IRC_processLine: line];
return YES;
}
if ([exception isKindOfClass: [OFInvalidEncodingException class]])
[sock asyncReadLineWithEncoding: OF_STRING_ENCODING_ISO_8859_1
target: self
selector: @selector(connection:
didReceiveISO88591Line:
exception:)];
return NO;
}
- (void)handleConnection
{
[sock asyncReadLineWithTarget: self
selector: @selector(connection:didReceiveLine:
exception:)];
}
- (void)dealloc
{
[sock release];
[server release];
[nickname release];
[username release];
[realname release];
[channels release];
[super dealloc];
}
@end
@implementation OFObject (IRCConnectionDelegate)
- (void)connection: (IRCConnection*)connection
didReceiveLine: (OFString*)line
{
}
- (void)connection: (IRCConnection*)connection
didSendLine: (OFString*)line
{
}
- (void)connectionWasEstablished: (IRCConnection*)connection
{
}
- (void)connection: (IRCConnection*)connection
didSeeUser: (IRCUser*)user
joinChannel: (IRCChannel*)channel
{
}
- (void)connection: (IRCConnection*)connection
didSeeUser: (IRCUser*)user
leaveChannel: (IRCChannel*)channel
withReason: (OFString*)reason
{
}
- (void)connection: (IRCConnection*)connection
didSeeUser: (IRCUser*)user
changeNicknameTo: (OFString*)nickname
{
}
- (void)connection: (IRCConnection*)connection
didSeeUser: (IRCUser*)user
kickUser: (OFString*)kickedUser
fromChannel: (IRCChannel*)channel
withReason: (OFString*)reason
{
}
- (void)connection: (IRCConnection*)connection
didSeeUserQuit: (IRCUser*)user
withReason: (OFString*)reason
{
}
- (void)connection: (IRCConnection*)connection
didReceiveMessage: (OFString*)msg
fromUser: (IRCUser*)user
inChannel: (IRCChannel*)channel
{
}
- (void)connection: (IRCConnection*)connection
didReceivePrivateMessage: (OFString*)msg
fromUser: (IRCUser*)user
{
}
- (void)connection: (IRCConnection*)connection
didReceiveNotice: (OFString*)notice
fromUser: (IRCUser*)user
{
}
- (void)connection: (IRCConnection*)connection
didReceiveNotice: (OFString*)notice
fromUser: (IRCUser*)user
inChannel: (IRCChannel*)channel
{
}
- (void)connection: (IRCConnection*)connection
didReceiveNamesForChannel: (IRCChannel*)channel
{
}
- (void)connectionWasClosed: (IRCConnection*)connection
{
}
@end