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/* |
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* Copyright (c) 2002 Erik Fears |
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* Copyright (c) 2014-2015 ircd-hybrid development team |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
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* USA |
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*/ |
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|
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#include "setup.h" |
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|
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#include <string.h> |
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#include <stdlib.h> |
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#include <sys/types.h> |
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#include <netinet/in.h> |
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#include <time.h> |
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|
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#include "options.h" |
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#include "irc.h" |
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#include "log.h" |
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#include "main.h" |
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#include "misc.h" |
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#include "opercmd.h" |
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#include "scan.h" |
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#include "config.h" |
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#include "memory.h" |
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#include "list.h" |
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#include "stats.h" |
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|
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|
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static list_t *COMMANDS = NULL; /* List of active commands */ |
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|
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|
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static struct Command *command_create(const struct OperCommandHash *, char *param, char *irc_nick, const struct ChannelConf *target); |
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static void command_free(struct Command *); |
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|
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static void cmd_check(char *, const struct ChannelConf *); |
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static void cmd_stat(char *, const struct ChannelConf *); |
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static void cmd_fdstat(char *, const struct ChannelConf *); |
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|
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static const struct OperCommandHash COMMAND_TABLE[] = |
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{ |
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{ "CHECK", cmd_check }, |
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{ "SCAN", cmd_check }, |
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{ "STAT", cmd_stat }, |
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{ "STATS", cmd_stat }, |
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{ "STATUS", cmd_stat }, |
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{ "FDSTAT", cmd_fdstat }, |
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{ NULL, NULL } |
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}; |
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|
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|
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/* command_init |
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* |
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* Do command initialization |
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* |
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* Parameters: NONE |
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* Return: NONE |
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* |
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*/ |
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void |
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command_init(void) |
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{ |
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if (COMMANDS == NULL) |
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COMMANDS = list_create(); |
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} |
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|
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/* command_timer |
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* |
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* Perform ~1 second actions. |
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* |
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* Parameters: NONE |
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* |
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* Return: NONE |
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* |
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*/ |
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void |
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command_timer(void) |
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{ |
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static unsigned int interval; |
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node_t *node, *next; |
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time_t present; |
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|
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/* Only perform command removal every COMMANDINTERVAL seconds */ |
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if (interval++ < COMMANDINTERVAL) |
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return; |
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else |
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interval = 0; |
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|
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time(&present); |
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|
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LIST_FOREACH_SAFE(node, next, COMMANDS->head) |
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{ |
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struct Command *cs = node->data; |
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|
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if ((present - cs->added) > COMMANDTIMEOUT) |
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{ |
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command_free(cs); |
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list_remove(COMMANDS, node); |
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node_free(node); |
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} |
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else /* Since the queue is in order, it's also ordered by time, no nodes after this will be timed out */ |
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return; |
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} |
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} |
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|
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/* command_parse |
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* |
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* Parse a command to hopm (sent to a channel hopm is on). The command is parsed |
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* from the parameters, and if it is a known command it is stored in a queue. A |
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* userhost is performed on the user to check if they are an IRC operator. When |
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* a reply is returned (command_userhost), the command will be executed. |
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* |
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* Parameters: |
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* command: Command sent (including parameters) |
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* target: Channel command was sent to (we only got this far if there was only one recipient) |
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* source_p: Operator (hopefully) that sent the command. |
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* |
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*/ |
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void |
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command_parse(char *command, const struct ChannelConf *target, |
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const struct UserInfo *source_p) |
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{ |
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char *param; /* Parsed parameters */ |
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|
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if (OPT_DEBUG) |
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log_printf("COMMAND -> Parsing command (%s) from %s [%s]", command, |
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source_p->irc_nick, target->name); |
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|
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/* Only allow COMMANDMAX commands in the queue */ |
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if (LIST_SIZE(COMMANDS) >= COMMANDMAX) |
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return; |
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|
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/* |
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* Parameter is the first character in command after the first space. |
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* param will be NULL if: |
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* 1. There was no space |
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* 2. There was a space but it was the last character in command, in which case |
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* param = '\0' |
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*/ |
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|
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/* Skip past the botname/!all */ |
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command = strchr(command, ' '); |
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|
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/* TBD: skip leading spaces if there's more than one */ |
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/* |
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* There is no command OR there is at least nothing |
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* past that first space. |
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*/ |
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if (command == NULL || *++command == '\0') |
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return; |
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|
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/* Find the parameters */ |
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param = strchr(command, ' '); |
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|
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if (param) |
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{ |
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*param = '\0'; |
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param++; |
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} |
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else |
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param = ""; |
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|
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log_printf("COMMAND -> parsed [%s] [%s]", command, param); |
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|
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/* Lookup the command in the table */ |
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for (const struct OperCommandHash *tab = COMMAND_TABLE; tab->command; ++tab) |
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{ |
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if (strcasecmp(command, tab->command) == 0) |
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{ |
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/* Queue this command */ |
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struct Command *cs = command_create(tab, param, source_p->irc_nick, target); |
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|
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list_add(COMMANDS, node_create(cs)); |
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break; |
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} |
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} |
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|
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irc_send("USERHOST %s", source_p->irc_nick); |
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} |
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|
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/* command_create |
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* |
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* Create a Command struct. |
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* |
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* Parameters: |
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* type: Index in COMMAND_TABLE |
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* param: Parameters to the command (NULL if there are not any) |
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* irc_nick: Nickname of user that initiated the command |
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* target: Target channel (target is ALWAYS a channel) |
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* |
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* Return: |
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* Pointer to new Command |
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*/ |
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static struct Command * |
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command_create(const struct OperCommandHash *tab, char *param, char *irc_nick, |
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const struct ChannelConf *target) |
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{ |
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struct Command *const ret = xcalloc(sizeof *ret); |
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|
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if (param) |
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ret->param = xstrdup(param); |
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|
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ret->tab = tab; |
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ret->irc_nick = xstrdup(irc_nick); |
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ret->target = target; /* FIXME: This needs fixed if rehash is implemented */ |
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|
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time(&(ret->added)); |
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|
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return ret; |
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} |
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|
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/* command_free |
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* |
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* Free a command struct |
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* |
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* Parameters: |
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* command: Command struct to free |
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* |
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* Return: NONE |
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*/ |
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static void |
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command_free(struct Command *command) |
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{ |
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if (command->param) |
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MyFree(command->param); |
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|
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MyFree(command->irc_nick); |
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MyFree(command); |
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} |
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|
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/* command_userhost |
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* |
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* A 302 reply was received. The reply is parsed to check if the |
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* user was an operator. If so any commands they had queued are |
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* executed. |
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* |
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* Parameters: |
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* reply: Reply to USERHOST (ex: :grifferz*=+goats@pc-62-30-219-54-pb.blueyonder.co.uk) |
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* |
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* Return: NONE |
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* |
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*/ |
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void |
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command_userhost(const char *reply) |
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{ |
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node_t *node, *next; |
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char *tmp; |
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int oper = 0; |
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|
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tmp = strchr(reply, '='); |
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|
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/* They quit, ignore it */ |
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if (tmp == NULL) |
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return; |
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|
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/* Operators have a * flag in a USERHOST reply */ |
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if (*(tmp - 1) == '*') |
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oper = 1; |
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|
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/* Null terminate it so tmp = the oper's nick */ |
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if (oper) |
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*(--tmp) = '\0'; |
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else |
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*(tmp) = '\0'; |
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|
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/* Find any queued commands that match this user */ |
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LIST_FOREACH_SAFE(node, next, COMMANDS->head) |
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{ |
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struct Command *cs = node->data; |
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|
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if (strcmp(cs->irc_nick, reply) == 0) |
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{ |
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if (oper) |
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cs->tab->handler(cs->param, cs->target); |
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|
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/* Cleanup the command */ |
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command_free(cs); |
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list_remove(COMMANDS, node); |
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node_free(node); |
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} |
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} |
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} |
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|
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/* cmd_check |
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* |
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* Start a manual scan on given IP. Parameter MUST be an IP. HOPM should not |
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* have to waste any time resolving a hostname. |
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* |
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* Parameters: |
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* param: Parameters of the command |
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* target: channel command was sent to |
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* |
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*/ |
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static void |
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cmd_check(char *param, const struct ChannelConf *target) |
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{ |
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scan_manual(param, target); |
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} |
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|
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/* cmd_stat |
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* |
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* Send output of stats to channel. |
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* |
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* Parameters: |
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* param: Parameters of the command |
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* target: channel command was sent to |
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*/ |
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static void |
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cmd_stat(char *param, const struct ChannelConf *target) |
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{ |
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stats_output(target->name); |
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} |
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|
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/* cmd_fdstat |
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* |
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* Send output of stats to channel. |
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* |
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* Parameters: |
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* param: Parameters of the command |
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* target: channel command was sent to |
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*/ |
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static void |
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cmd_fdstat(char *param, const struct ChannelConf *target) |
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{ |
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fdstats_output(target->name); |
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} |
