Commit Diff
Diff:
2c1b6280fac393c8977df03d94cc6a1dcf2a5f5d
c5000694d16da0a205e7dde49681d589d552d144
Commit:
c5000694d16da0a205e7dde49681d589d552d144
Tree:
bd929da9c39c8e996e566ab8b4f4f88c6540ac47
Author:
Alexander Barton <alex@barton.de>
Committer:
Alexander Barton <alex@barton.de>
Date:
Tue Jan 20 16:20:30 2009 UTC
Message:
Support individual channel keys for pre-defined channels. This patch introduces the new configuration variable "KeyFile" for [Channel] sections in ngircd.conf. Here a file can be configured for each pre-defined channel which contains individual channel keys for different users. This file is line-based and must have the following syntax: :: and can contain the wildcard character "*". Please not that these channel keys are only in effect, when the channel has a regular key set using channel mode "k"!
blob - 526e8801c95c8db6ac90e43734b621ec09da3840
blob + 0d0061bcba6bbc83c801f22bc14659830f074901
--- doc/sample-ngircd.conf
+++ doc/sample-ngircd.conf
@@ -245,6 +245,10 @@
# initial channel password (mode k)
;Key = Secret
+ # Key file, syntax for each line: "<user>:<nick>:<key>".
+ # Default: none.
+ ;KeyFile = /etc/ngircd/#chan.key
+
# maximum users per channel (mode l)
;MaxUsers = 23
blob - b8aa7bda96402b0da5d3bfb23336c706e08b1740
blob + df15b77a16104a63bbe3f3414f7f3e54d48296c2
--- man/ngircd.conf.5.tmpl
+++ man/ngircd.conf.5.tmpl
@@ -319,8 +319,51 @@ Topic for this channel.
Initial channel modes.
.TP
\fBKey\fR
-Sets initial channel key (only relevant if mode k is set).
+Sets initial channel key (only relevant if channel mode "k" is set).
.TP
+\fBKeyFile\fR
+Path and file name of a "key file" containing individual channel keys for
+different users. The file consists of plain text lines with the following
+syntax (without spaces!):
+.PP
+.RS
+.RS
+.I user
+:
+.I nick
+:
+.I key
+.RE
+.PP
+.I user
+and
+.I nick
+can contain the wildcard character "*".
+.br
+.I key
+is an arbitrary password.
+.PP
+Valid examples are:
+.PP
+.RS
+*:*:KeY
+.br
+*:nick:123
+.br
+~user:*:xyz
+.RE
+.PP
+The key file is read on each JOIN command when this channel has a key
+(channel mode +k). Access is granted, if a) the channel key set using the
+MODE +k command or b) one of the lines in the key file match.
+.PP
+.B Please note:
+.br
+The file is not reopened on each access, so you can modify and overwrite it
+without problems, but moving or deleting the file will have not effect until
+the daemon re-reads its configuration!
+.RE
+.TP
\fBMaxUsers\fR
Set maximum user limit for this channel (only relevant if channel mode "l"
is set).
blob - 46e42acd834ea9bcc7600e33406367ac74cd3ef3
blob + 6d23b249e1773fc51924f5e1672567fb38f4c5c7
--- src/ngircd/channel.c
+++ src/ngircd/channel.c
@@ -22,6 +22,7 @@
#include <stdlib.h>
#include <string.h>
#include <errno.h>
+#include <stdio.h>
#include <strings.h>
#include "defines.h"
@@ -39,6 +40,7 @@
#include "lists.h"
#include "log.h"
#include "messages.h"
+#include "match.h"
#include "exp.h"
@@ -59,6 +61,9 @@ static CL2CHAN *Get_First_Cl2Chan PARAMS(( CLIENT *Cli
static CL2CHAN *Get_Next_Cl2Chan PARAMS(( CL2CHAN *Start, CLIENT *Client, CHANNEL *Chan ));
static void Delete_Channel PARAMS(( CHANNEL *Chan ));
static void Free_Channel PARAMS(( CHANNEL *Chan ));
+static void Update_Predefined PARAMS((CHANNEL *Chan,
+ const struct Conf_Channel *Conf_Chan));
+static void Set_Key_File PARAMS((CHANNEL *Chan, FILE *KeyFile));
GLOBAL void
@@ -116,8 +121,10 @@ Channel_InitPredefined( void )
new_chan = Channel_Search(conf_chan->name);
if (new_chan) {
- Log(LOG_INFO, "Can't create pre-defined channel \"%s\": name already in use.",
- conf_chan->name);
+ Log(LOG_INFO,
+ "Can't create pre-defined channel \"%s\": name already in use.",
+ conf_chan->name);
+ Update_Predefined(new_chan, conf_chan);
continue;
}
@@ -127,6 +134,8 @@ Channel_InitPredefined( void )
conf_chan->name);
continue;
}
+ Log(LOG_INFO, "Created pre-defined channel \"%s\"",
+ conf_chan->name);
Channel_ModeAdd(new_chan, 'P');
@@ -139,8 +148,7 @@ Channel_InitPredefined( void )
Channel_SetKey(new_chan, conf_chan->key);
Channel_SetMaxUsers(new_chan, conf_chan->maxusers);
- Log(LOG_INFO, "Created pre-defined channel \"%s\"",
- conf_chan->name);
+ Update_Predefined(new_chan, conf_chan);
}
if (channel_count)
array_free(&Conf_Channels);
@@ -153,6 +161,8 @@ Free_Channel(CHANNEL *chan)
array_free(&chan->topic);
Lists_Free(&chan->list_bans);
Lists_Free(&chan->list_invites);
+ if (Chan->keyfile)
+ fclose(Chan->keyfile);
free(chan);
}
@@ -1051,6 +1061,44 @@ Channel_LogServer(char *msg)
} /* Channel_LogServer */
+GLOBAL bool
+Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
+{
+ char line[COMMAND_LEN], *nick, *pass;
+
+ assert(Chan != NULL);
+ assert(Client != NULL);
+ assert(Key != NULL);
+
+ if (!strchr(Chan->modes, 'k'))
+ return true;
+ if (strcmp(Chan->key, Key) == 0)
+ return true;
+ if (!Chan->keyfile)
+ return false;
+
+ Chan->keyfile = freopen(NULL, "r", Chan->keyfile);
+ while (fgets(line, sizeof(line), Chan->keyfile) != NULL) {
+ ngt_TrimStr(line);
+ if (! (nick = strchr(line, ':')))
+ continue;
+ *nick++ = '\0';
+ if (!Match(line, Client_User(Client)))
+ continue;
+ if (! (pass = strchr(nick, ':')))
+ continue;
+ *pass++ = '\0';
+ if (!Match(nick, Client_ID(Client)))
+ continue;
+ if (strcmp(Key, pass) != 0)
+ continue;
+
+ return true;
+ }
+ return false;
+} /* Channel_CheckKey */
+
+
static CL2CHAN *
Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
{
@@ -1108,4 +1156,36 @@ Delete_Channel(CHANNEL *Chan)
} /* Delete_Channel */
+static void
+Update_Predefined(CHANNEL *Chan, const struct Conf_Channel *Conf_Chan)
+{
+ FILE *fd;
+
+ if (! Conf_Chan->keyfile || ! *Conf_Chan->keyfile)
+ return;
+
+ fd = fopen(Conf_Chan->keyfile, "r");
+ if (! fd)
+ Log(LOG_ERR,
+ "Can't open channel key file for \"%s\", \"%s\": %s",
+ Conf_Chan->name, Conf_Chan->keyfile,
+ strerror(errno));
+ else
+ Set_Key_File(Chan, fd);
+} /* Update_Predefined */
+
+
+static void
+Set_Key_File(CHANNEL *Chan, FILE *KeyFile)
+{
+ assert(Chan != NULL);
+
+ if (Chan->keyfile)
+ fclose(Chan->keyfile);
+ Chan->keyfile = KeyFile;
+ Log(LOG_INFO|LOG_snotice,
+ "New local channel key file for \"%s\" activated.", Chan->name);
+} /* Set_Key_File */
+
+
/* -eof- */
blob - 56b124049592124d7a094cd3ebe38fac0fc3257d
blob + 3aa1853dd1b344beb4d0117a79e65b632445ec74
--- src/ngircd/channel.h
+++ src/ngircd/channel.h
@@ -37,6 +37,7 @@ typedef struct _CHANNEL
unsigned long maxusers; /* Maximum number of members (mode "l") */
struct list_head list_bans; /* list head of banned users */
struct list_head list_invites; /* list head of invited users */
+ FILE *keyfile; /* handle of the channel key file */
} CHANNEL;
typedef struct _CLIENT2CHAN
@@ -127,6 +128,9 @@ GLOBAL bool Channel_ShowInvites PARAMS((CLIENT *client
GLOBAL void Channel_LogServer PARAMS((char *msg));
+GLOBAL bool Channel_CheckKey PARAMS((CHANNEL *Chan, CLIENT *Client,
+ const char *Key));
+
#define Channel_IsLocal(c) (Channel_Name(c)[0] == '&')
blob - fc12cd9ba826ed19903120433464b6d148a59f3d
blob + 4a8b6283a4f8136d27a4e23f0cc1629a7e7e3f85
--- src/ngircd/conf.c
+++ src/ngircd/conf.c
@@ -313,7 +313,8 @@ Conf_Test( void )
printf(" Modes = %s\n", predef_chan->modes);
printf(" Key = %s\n", predef_chan->key);
printf(" MaxUsers = %lu\n", predef_chan->maxusers);
- printf(" Topic = %s\n\n", predef_chan->topic);
+ printf(" Topic = %s\n", predef_chan->topic);
+ printf(" KeyFile = %s\n\n", predef_chan->keyfile);
}
return (config_valid ? 0 : 1);
@@ -1232,6 +1233,13 @@ Handle_CHANNEL(int Line, char *Var, char *Arg)
Config_Error_NaN(Line, Var);
return;
}
+ if (strcasecmp(Var, "KeyFile") == 0) {
+ /* channel keys */
+ len = strlcpy(chan->keyfile, Arg, sizeof(chan->keyfile));
+ if (len >= sizeof(chan->keyfile))
+ Config_Error_TooLong(Line, Var);
+ return;
+ }
Config_Error( LOG_ERR, "%s, line %d (section \"Channel\"): Unknown variable \"%s\"!",
NGIRCd_ConfFile, Line, Var );
blob - cd9cb9581fba4dd91daae6e7fdabd3a6a8ee2626
blob + 4695b25ab8d2486305209f204adb20c87de92bfe
--- src/ngircd/conf.h
+++ src/ngircd/conf.h
@@ -72,6 +72,7 @@ struct Conf_Channel {
char modes[CHANNEL_MODE_LEN]; /* Initial channel modes */
char key[CLIENT_PASS_LEN]; /* Channel key ("password", mode "k" ) */
char topic[COMMAND_LEN]; /* Initial topic */
+ char keyfile[512]; /* Path and name of channel key file */
unsigned long maxusers; /* maximum usercount for this channel, mode "l" */
};
blob - 27414d38b5771666c402dba0a259018e6f6e06df
blob + 6c478c83927646f6b92d6cf385768dc02fe6620e
--- src/ngircd/irc-channel.c
+++ src/ngircd/irc-channel.c
@@ -89,10 +89,9 @@ join_allowed(CLIENT *Client, CLIENT *target, CHANNEL *
}
/* Is the channel protected by a key? */
- if (strchr(channel_modes, 'k') &&
- strcmp(Channel_Key(chan), key ? key : ""))
- {
- IRC_WriteStrClient(Client, ERR_BADCHANNELKEY_MSG, Client_ID(Client), channame);
+ if (!Channel_CheckKey(chan, target, key ? key : "")) {
+ IRC_WriteStrClient(Client, ERR_BADCHANNELKEY_MSG,
+ Client_ID(Client), channame);
return false;
}
/* Are there already too many members? */
IRCNow