catgirl/command.c

285 lines
7.2 KiB
C

/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "chat.h"
typedef void Command(size_t id, char *params);
static void commandDebug(size_t id, char *params) {
(void)id;
(void)params;
self.debug ^= true;
uiFormat(
Debug, Warm, NULL,
"\3%dDebug is %s", Gray, (self.debug ? "on" : "off")
);
}
static void commandQuote(size_t id, char *params) {
(void)id;
if (params) ircFormat("%s\r\n", params);
}
static void commandPrivmsg(size_t id, char *params) {
if (!params || !params[0]) return;
ircFormat("PRIVMSG %s :%s\r\n", idNames[id], params);
struct Message msg = {
.nick = self.nick,
.user = self.user,
.cmd = "PRIVMSG",
.params[0] = idNames[id],
.params[1] = params,
};
handle(msg);
}
static void commandNotice(size_t id, char *params) {
if (!params || !params[0]) return;
ircFormat("NOTICE %s :%s\r\n", idNames[id], params);
struct Message msg = {
.nick = self.nick,
.user = self.user,
.cmd = "NOTICE",
.params[0] = idNames[id],
.params[1] = params,
};
handle(msg);
}
static void commandMe(size_t id, char *params) {
char buf[512];
snprintf(buf, sizeof(buf), "\1ACTION %s\1", (params ? params : ""));
commandPrivmsg(id, buf);
}
static void commandMsg(size_t id, char *params) {
(void)id;
char *nick = strsep(&params, " ");
if (!params) return;
commandPrivmsg(idFor(nick), params);
}
static void commandJoin(size_t id, char *params) {
size_t count = 1;
if (params) {
for (char *ch = params; *ch && *ch != ' '; ++ch) {
if (*ch == ',') count++;
}
}
ircFormat("JOIN %s\r\n", (params ? params : idNames[id]));
replies.join += count;
replies.topic += count;
replies.names += count;
}
static void commandPart(size_t id, char *params) {
if (params) {
ircFormat("PART %s :%s\r\n", idNames[id], params);
} else {
ircFormat("PART %s\r\n", idNames[id]);
}
}
static void commandQuit(size_t id, char *params) {
(void)id;
set(&self.quit, (params ? params : "Goodbye"));
}
static void commandNick(size_t id, char *params) {
(void)id;
if (!params) return;
ircFormat("NICK :%s\r\n", params);
}
static void commandTopic(size_t id, char *params) {
if (params) {
ircFormat("TOPIC %s :%s\r\n", idNames[id], params);
} else {
ircFormat("TOPIC %s\r\n", idNames[id]);
replies.topic++;
}
}
static void commandNames(size_t id, char *params) {
(void)params;
ircFormat("NAMES :%s\r\n", idNames[id]);
replies.names++;
}
static void commandWhois(size_t id, char *params) {
(void)id;
if (!params) return;
ircFormat("WHOIS :%s\r\n", params);
replies.whois++;
}
static void commandQuery(size_t id, char *params) {
if (!params) return;
size_t query = idFor(params);
idColors[query] = completeColor(id, params);
uiShowID(query);
}
static void commandWindow(size_t id, char *params) {
if (!params) return;
if (isdigit(params[0])) {
uiShowNum(strtoul(params, NULL, 10));
} else {
id = idFind(params);
if (id) uiShowID(id);
}
}
static void commandClose(size_t id, char *params) {
if (!params) {
uiCloseID(id);
} else if (isdigit(params[0])) {
uiCloseNum(strtoul(params, NULL, 10));
} else {
id = idFind(params);
if (id) uiCloseID(id);
}
}
static void commandOpen(size_t id, char *params) {
if (!params) {
urlOpenCount(id, 1);
} else if (isdigit(params[0])) {
urlOpenCount(id, strtoul(params, NULL, 10));
} else {
urlOpenMatch(id, params);
}
}
static void commandCopy(size_t id, char *params) {
urlCopyMatch(id, params);
}
static void commandHelp(size_t id, char *params) {
(void)id;
uiHide();
pid_t pid = fork();
if (pid < 0) err(EX_OSERR, "fork");
if (pid) return;
char buf[256];
snprintf(buf, sizeof(buf), "ip%s$", (params ? params : "COMMANDS"));
setenv("LESS", buf, 1);
execlp("man", "man", "1", "catgirl", NULL);
dup2(procPipe[1], STDERR_FILENO);
warn("man");
_exit(EX_UNAVAILABLE);
}
static const struct Handler {
const char *cmd;
Command *fn;
bool restricted;
} Commands[] = {
{ "/close", .fn = commandClose },
{ "/copy", .fn = commandCopy, .restricted = true },
{ "/debug", .fn = commandDebug, .restricted = true },
{ "/help", .fn = commandHelp },
{ "/join", .fn = commandJoin, .restricted = true },
{ "/me", .fn = commandMe },
{ "/msg", .fn = commandMsg, .restricted = true },
{ "/names", .fn = commandNames },
{ "/nick", .fn = commandNick },
{ "/notice", .fn = commandNotice },
{ "/open", .fn = commandOpen, .restricted = true },
{ "/part", .fn = commandPart },
{ "/query", .fn = commandQuery, .restricted = true },
{ "/quit", .fn = commandQuit },
{ "/quote", .fn = commandQuote, .restricted = true },
{ "/topic", .fn = commandTopic },
{ "/whois", .fn = commandWhois },
{ "/window", .fn = commandWindow },
};
static int compar(const void *cmd, const void *_handler) {
const struct Handler *handler = _handler;
return strcmp(cmd, handler->cmd);
}
const char *commandIsPrivmsg(size_t id, const char *input) {
if (id == Network || id == Debug) return NULL;
if (input[0] != '/') return input;
const char *space = strchr(&input[1], ' ');
const char *slash = strchr(&input[1], '/');
if (slash && (!space || slash < space)) return input;
return NULL;
}
const char *commandIsNotice(size_t id, const char *input) {
if (id == Network || id == Debug) return NULL;
if (strncmp(input, "/notice ", 8)) return NULL;
return &input[8];
}
const char *commandIsAction(size_t id, const char *input) {
if (id == Network || id == Debug) return NULL;
if (strncmp(input, "/me ", 4)) return NULL;
return &input[4];
}
void command(size_t id, char *input) {
if (id == Debug && input[0] != '/') {
commandQuote(id, input);
} else if (commandIsPrivmsg(id, input)) {
commandPrivmsg(id, input);
} else if (input[0] == '/' && isdigit(input[1])) {
commandWindow(id, &input[1]);
} else {
const char *cmd = strsep(&input, " ");
const char *unique = complete(None, cmd);
if (unique && !complete(None, cmd)) {
cmd = unique;
completeReject();
}
const struct Handler *handler = bsearch(
cmd, Commands, ARRAY_LEN(Commands), sizeof(*handler), compar
);
if (self.restricted && handler && handler->restricted) {
handler = NULL;
}
if (handler) {
if (input) {
input += strspn(input, " ");
size_t len = strlen(input);
while (input[len - 1] == ' ') input[--len] = '\0';
if (!input[0]) input = NULL;
}
if (input && !input[0]) input = NULL;
handler->fn(id, input);
} else {
uiFormat(id, Hot, NULL, "No such command %s", cmd);
}
}
}
void commandComplete(void) {
for (size_t i = 0; i < ARRAY_LEN(Commands); ++i) {
completeAdd(None, Commands[i].cmd, Default);
}
}