diff options
Diffstat (limited to 'command.c')
| -rw-r--r-- | command.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/command.c b/command.c new file mode 100644 index 0000000..5cb43cf --- /dev/null +++ b/command.c @@ -0,0 +1,280 @@ +/* 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(¶ms, " "); + 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; +} Commands[] = { + { "/close", commandClose }, + { "/copy", commandCopy }, + { "/debug", commandDebug }, + { "/help", commandHelp }, + { "/join", commandJoin }, + { "/me", commandMe }, + { "/msg", commandMsg }, + { "/names", commandNames }, + { "/nick", commandNick }, + { "/notice", commandNotice }, + { "/open", commandOpen }, + { "/part", commandPart }, + { "/query", commandQuery }, + { "/quit", commandQuit }, + { "/quote", commandQuote }, + { "/topic", commandTopic }, + { "/whois", commandWhois }, + { "/window", 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 (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); + } +} |