| 1 |
/* |
| 2 |
Copyright (C) 2002 Erik Fears |
| 3 |
|
| 4 |
This program is free software; you can redistribute it and/or |
| 5 |
modify it under the terms of the GNU General Public License |
| 6 |
as published by the Free Software Foundation; either version 2 |
| 7 |
of the License, or (at your option) any later version. |
| 8 |
|
| 9 |
This program is distributed in the hope that it will be useful, |
| 10 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 |
GNU General Public License for more details. |
| 13 |
|
| 14 |
You should have received a copy of the GNU General Public License |
| 15 |
along with this program; if not, write to the Free Software |
| 16 |
|
| 17 |
Foundation, Inc. |
| 18 |
59 Temple Place - Suite 330 |
| 19 |
Boston, MA 02111-1307, USA. |
| 20 |
|
| 21 |
*/ |
| 22 |
|
| 23 |
#include "setup.h" |
| 24 |
|
| 25 |
#ifdef STDC_HEADERS |
| 26 |
# include <string.h> |
| 27 |
# include <stdlib.h> |
| 28 |
#endif |
| 29 |
|
| 30 |
#include <sys/types.h> |
| 31 |
#include <netinet/in.h> |
| 32 |
#include <time.h> |
| 33 |
|
| 34 |
#include "options.h" |
| 35 |
#include "irc.h" |
| 36 |
#include "log.h" |
| 37 |
#include "misc.h" |
| 38 |
#include "opercmd.h" |
| 39 |
#include "scan.h" |
| 40 |
#include "config.h" |
| 41 |
#include "extern.h" |
| 42 |
#include "malloc.h" |
| 43 |
#include "list.h" |
| 44 |
#include "stats.h" |
| 45 |
|
| 46 |
/* List of active commands */ |
| 47 |
|
| 48 |
list_t *COMMANDS = NULL; |
| 49 |
|
| 50 |
|
| 51 |
static struct Command *command_create(unsigned short type, char *param, char *irc_nick, struct ChannelConf *target); |
| 52 |
static void command_free(struct Command *); |
| 53 |
|
| 54 |
static void cmd_check(char *, char *, struct ChannelConf *); |
| 55 |
static void cmd_stat(char *, char *, struct ChannelConf *); |
| 56 |
static void cmd_fdstat(char *, char *, struct ChannelConf *); |
| 57 |
|
| 58 |
static struct OperCommandHash COMMAND_TABLE[] = |
| 59 |
{ |
| 60 |
{"CHECK", cmd_check }, |
| 61 |
{"SCAN", cmd_check }, |
| 62 |
{"STAT", cmd_stat }, |
| 63 |
{"STATS", cmd_stat }, |
| 64 |
{"STATUS", cmd_stat }, |
| 65 |
{"FDSTAT", cmd_fdstat }, |
| 66 |
}; |
| 67 |
|
| 68 |
|
| 69 |
|
| 70 |
/* command_init |
| 71 |
* |
| 72 |
* Do command initialization |
| 73 |
* |
| 74 |
* Parameters: NONE |
| 75 |
* Return: NONE |
| 76 |
* |
| 77 |
*/ |
| 78 |
|
| 79 |
void command_init() |
| 80 |
{ |
| 81 |
if(COMMANDS == NULL) |
| 82 |
COMMANDS = list_create(); |
| 83 |
} |
| 84 |
|
| 85 |
|
| 86 |
|
| 87 |
|
| 88 |
/* command_timer |
| 89 |
* |
| 90 |
* Perform ~1 second actions. |
| 91 |
* |
| 92 |
* Parameters: NONE |
| 93 |
* |
| 94 |
* Return: NONE |
| 95 |
* |
| 96 |
*/ |
| 97 |
|
| 98 |
void command_timer() |
| 99 |
{ |
| 100 |
|
| 101 |
static unsigned short interval; |
| 102 |
|
| 103 |
node_t *node, *next; |
| 104 |
struct Command *cs; |
| 105 |
time_t present; |
| 106 |
|
| 107 |
/* Only perform command removal every COMMANDINTERVAL seconds */ |
| 108 |
if(interval++ < COMMANDINTERVAL) |
| 109 |
return; |
| 110 |
else |
| 111 |
interval = 0; |
| 112 |
|
| 113 |
time(&present); |
| 114 |
|
| 115 |
LIST_FOREACH_SAFE(node, next, COMMANDS->head) |
| 116 |
{ |
| 117 |
cs = (struct Command *) node->data; |
| 118 |
if((present - cs->added) > COMMANDTIMEOUT) |
| 119 |
{ |
| 120 |
command_free(cs); |
| 121 |
list_remove(COMMANDS, node); |
| 122 |
node_free(node); |
| 123 |
} |
| 124 |
else /* Since the queue is in order, it's also ordered by time, no nodes after this will be timed out */ |
| 125 |
return; |
| 126 |
} |
| 127 |
} |
| 128 |
|
| 129 |
|
| 130 |
/* command_parse |
| 131 |
* |
| 132 |
* Parse a command to hopm (sent to a channel hopm is on). The command is parsed |
| 133 |
* from the parameters, and if it is a known command it is stored in a queue. A |
| 134 |
* userhost is performed on the user to check if they are an IRC operator. When |
| 135 |
* a reply is returned (command_userhost), the command will be executed. |
| 136 |
* |
| 137 |
* Parameters: |
| 138 |
* command: Command sent (including parameters) |
| 139 |
* msg: Original PRIVMSG containing the command |
| 140 |
* target: Channel command was sent to (we only got this far if there was only one recipient) |
| 141 |
* source_p: Operator (hopefully) that sent the command. |
| 142 |
* |
| 143 |
*/ |
| 144 |
|
| 145 |
void command_parse(char *command, char *msg, struct ChannelConf *target, |
| 146 |
struct UserInfo *source_p) |
| 147 |
{ |
| 148 |
unsigned int i; |
| 149 |
char *param; /* Parsed parameters */ |
| 150 |
struct Command *cs; |
| 151 |
node_t *node; |
| 152 |
|
| 153 |
if(OPT_DEBUG) |
| 154 |
{ |
| 155 |
log_printf("COMMAND -> Parsing command (%s) from %s [%s]", command, |
| 156 |
source_p->irc_nick, target->name); |
| 157 |
} |
| 158 |
|
| 159 |
/* Only allow COMMANDMAX commands in the queue */ |
| 160 |
if(LIST_SIZE(COMMANDS) >= COMMANDMAX) |
| 161 |
return; |
| 162 |
|
| 163 |
/* Parameter is the first character in command after the first space. |
| 164 |
param will be NULL if: |
| 165 |
1. There was no space |
| 166 |
2. There was a space but it was the last character in command, in which case |
| 167 |
param = '\0' |
| 168 |
*/ |
| 169 |
|
| 170 |
/* Skip past the botname/!all */ |
| 171 |
command = strchr(command, ' '); |
| 172 |
|
| 173 |
/* There is no command OR |
| 174 |
there is at least nothing |
| 175 |
past that first space. */ |
| 176 |
if(command == NULL || |
| 177 |
command++ == NULL) |
| 178 |
return; |
| 179 |
|
| 180 |
|
| 181 |
/* Find the parameters */ |
| 182 |
param = strchr(command, ' '); |
| 183 |
|
| 184 |
if(param != NULL) |
| 185 |
{ |
| 186 |
*param = '\0'; |
| 187 |
param++; |
| 188 |
} |
| 189 |
else |
| 190 |
param = ""; |
| 191 |
|
| 192 |
log_printf("COMMAND -> parsed [%s] [%s]", command, param); |
| 193 |
|
| 194 |
/* Lookup the command in the table */ |
| 195 |
for(i = 0; i < sizeof(COMMAND_TABLE) / sizeof(struct OperCommandHash); i++) |
| 196 |
{ |
| 197 |
if(strcasecmp(command, COMMAND_TABLE[i].command) == 0) |
| 198 |
{ |
| 199 |
/* Queue this command */ |
| 200 |
cs = command_create(i, param, source_p->irc_nick, target); |
| 201 |
node = node_create(cs); |
| 202 |
list_add(COMMANDS, node); |
| 203 |
} |
| 204 |
} |
| 205 |
|
| 206 |
irc_send("USERHOST %s", source_p->irc_nick); |
| 207 |
} |
| 208 |
|
| 209 |
|
| 210 |
|
| 211 |
|
| 212 |
/* command_create |
| 213 |
* |
| 214 |
* Create a Command struct. |
| 215 |
* |
| 216 |
* Parameters: |
| 217 |
* type: Index in COMMAND_TABLE |
| 218 |
* param: Parameters to the command (NULL if there are not any) |
| 219 |
* irc_nick: Nickname of user that initiated the command |
| 220 |
* target: Target channel (target is ALWAYS a channel) |
| 221 |
* |
| 222 |
* Return: |
| 223 |
* Pointer to new Command |
| 224 |
*/ |
| 225 |
|
| 226 |
static struct Command *command_create(unsigned short type, char *param, char *irc_nick, struct ChannelConf *target) |
| 227 |
{ |
| 228 |
struct Command *ret; |
| 229 |
|
| 230 |
ret = MyMalloc(sizeof *ret); |
| 231 |
|
| 232 |
ret->type = type; |
| 233 |
|
| 234 |
if(param != NULL) |
| 235 |
ret->param = DupString(param); |
| 236 |
else |
| 237 |
ret->param = NULL; |
| 238 |
|
| 239 |
ret->irc_nick = (char *) DupString(irc_nick); |
| 240 |
ret->target = target; /* FIXME: This needs fixed if rehash is implemented */ |
| 241 |
|
| 242 |
time(&(ret->added)); |
| 243 |
|
| 244 |
return ret; |
| 245 |
|
| 246 |
} |
| 247 |
|
| 248 |
|
| 249 |
|
| 250 |
/* command_free |
| 251 |
* |
| 252 |
* Free a command struct |
| 253 |
* |
| 254 |
* Parameters: |
| 255 |
* command: Command struct to free |
| 256 |
* |
| 257 |
* Return: NONE |
| 258 |
*/ |
| 259 |
|
| 260 |
static void command_free(struct Command *command) |
| 261 |
{ |
| 262 |
if(command->param != NULL) |
| 263 |
MyFree(command->param); |
| 264 |
MyFree(command->irc_nick); |
| 265 |
MyFree(command); |
| 266 |
} |
| 267 |
|
| 268 |
|
| 269 |
|
| 270 |
|
| 271 |
/* command_userhost |
| 272 |
* |
| 273 |
* A 302 reply was received. The reply is parsed to check if the |
| 274 |
* user was an operator. If so any commands they had queued are |
| 275 |
* executed. |
| 276 |
* |
| 277 |
* Parameters: |
| 278 |
* reply: Reply to USERHOST (ex: :grifferz*=+goats@pc-62-30-219-54-pb.blueyonder.co.uk) |
| 279 |
* |
| 280 |
* Return: NONE |
| 281 |
* |
| 282 |
*/ |
| 283 |
|
| 284 |
void command_userhost(char *reply) |
| 285 |
{ |
| 286 |
node_t *node, *next; |
| 287 |
struct Command *cs; |
| 288 |
char *tmp; |
| 289 |
|
| 290 |
int oper = 0; |
| 291 |
|
| 292 |
tmp = strchr(reply, '='); |
| 293 |
|
| 294 |
/* They quit, ignore it */ |
| 295 |
if (!tmp) |
| 296 |
return; |
| 297 |
|
| 298 |
/* Operators have a * flag in a USERHOST reply */ |
| 299 |
if (*(tmp - 1) == '*') |
| 300 |
oper = 1; |
| 301 |
|
| 302 |
/* Null terminate it so tmp = the oper's nick */ |
| 303 |
if(oper) |
| 304 |
*(--tmp) = '\0'; |
| 305 |
else |
| 306 |
*(tmp) = '\0'; |
| 307 |
|
| 308 |
/* Find any queued commands that match this user */ |
| 309 |
LIST_FOREACH_SAFE(node, next, COMMANDS->head) |
| 310 |
{ |
| 311 |
cs = (struct Command *) node->data; |
| 312 |
|
| 313 |
if(strcmp(cs->irc_nick, reply) == 0) |
| 314 |
{ |
| 315 |
if(oper) |
| 316 |
COMMAND_TABLE[cs->type].handler(cs->param, cs->irc_nick, cs->target); |
| 317 |
|
| 318 |
/* Cleanup the command */ |
| 319 |
command_free(cs); |
| 320 |
list_remove(COMMANDS, node); |
| 321 |
node_free(node); |
| 322 |
} |
| 323 |
} |
| 324 |
} |
| 325 |
|
| 326 |
|
| 327 |
|
| 328 |
/* cmd_check |
| 329 |
* |
| 330 |
* Start a manual scan on given IP. Parameter MUST be an IP. HOPM should not |
| 331 |
* have to waste any time resolving a hostname. |
| 332 |
* |
| 333 |
* Parameters: |
| 334 |
* param: Parameters of the command |
| 335 |
* source: irc_nick of user who requested the command |
| 336 |
* target: channel command was sent to |
| 337 |
* |
| 338 |
*/ |
| 339 |
|
| 340 |
static void cmd_check(char *param, char *source, struct ChannelConf *target) |
| 341 |
{ |
| 342 |
scan_manual(param, target); |
| 343 |
} |
| 344 |
|
| 345 |
|
| 346 |
|
| 347 |
/* cmd_stat |
| 348 |
* |
| 349 |
* Send output of stats to channel. |
| 350 |
* |
| 351 |
* Parameters: |
| 352 |
* param: Parameters of the command |
| 353 |
* source: irc_nick of user who requested the command |
| 354 |
* target: channel command was sent to |
| 355 |
*/ |
| 356 |
|
| 357 |
static void cmd_stat(char *param, char *source, struct ChannelConf *target) |
| 358 |
{ |
| 359 |
stats_output(target->name); |
| 360 |
} |
| 361 |
|
| 362 |
|
| 363 |
/* cmd_fdstat |
| 364 |
* |
| 365 |
* Send output of stats to channel. |
| 366 |
* |
| 367 |
* Parameters: |
| 368 |
* param: Parameters of the command |
| 369 |
* source: irc_nick of user who requested the command |
| 370 |
* target: channel command was sent to |
| 371 |
*/ |
| 372 |
|
| 373 |
static void cmd_fdstat(char *param, char *source, struct ChannelConf *target) |
| 374 |
{ |
| 375 |
fdstats_output(target->name); |
| 376 |
} |
