diff options
Diffstat (limited to 'handle.c')
| -rw-r--r-- | handle.c | 568 |
1 files changed, 0 insertions, 568 deletions
diff --git a/handle.c b/handle.c deleted file mode 100644 index fe15d9a..0000000 --- a/handle.c +++ /dev/null @@ -1,568 +0,0 @@ -/* Copyright (C) 2018, 2019 C. McEnroe <june@causal.agency> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <ctype.h> -#include <err.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sysexits.h> -#include <time.h> - -#include "chat.h" - -static char *paramField(char **params) { - char *rest = *params; - if (rest[0] == ':') { - *params = NULL; - return &rest[1]; - } - return strsep(params, " "); -} - -static void parse( - char *prefix, char **nick, char **user, char **host, - char *params, size_t req, size_t opt, /* (char **) */ ... -) { - char *field; - if (prefix) { - field = strsep(&prefix, "!"); - if (nick) *nick = field; - field = strsep(&prefix, "@"); - if (user) *user = field; - if (host) *host = prefix; - } - - va_list ap; - va_start(ap, opt); - for (size_t i = 0; i < req; ++i) { - if (!params) errx(EX_PROTOCOL, "%zu params required, found %zu", req, i); - field = paramField(¶ms); - char **param = va_arg(ap, char **); - if (param) *param = field; - } - for (size_t i = 0; i < opt; ++i) { - char **param = va_arg(ap, char **); - if (params) { - *param = paramField(¶ms); - } else { - *param = NULL; - } - } - va_end(ap); -} - -static bool isPing(const char *mesg) { - size_t len = strlen(self.nick); - const char *match = mesg; - while (NULL != (match = strcasestr(match, self.nick))) { - char b = (match > mesg ? *(match - 1) : ' '); - char a = (match[len] ? match[len] : ' '); - match = &match[len]; - if (!isspace(b) && !ispunct(b)) continue; - if (!isspace(a) && !ispunct(a)) continue; - return true; - } - return false; -} - -static char *dequote(char *mesg) { - if (mesg[0] == '"') mesg = &mesg[1]; - size_t len = strlen(mesg); - if (mesg[len - 1] == '"') mesg[len - 1] = '\0'; - return mesg; -} - -typedef void Handler(char *prefix, char *params); - -static void handlePing(char *prefix, char *params) { - (void)prefix; - ircFmt("PONG %s\r\n", params); -} - -static void handleError(char *prefix, char *params) { - char *mesg; - parse(prefix, NULL, NULL, NULL, params, 1, 0, &mesg); - if (self.quit) { - uiExit(EX_OK); - } else { - errx(EX_PROTOCOL, "%s", mesg); - } -} - -static void handleCap(char *prefix, char *params) { - char *subc, *list; - parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, &subc, &list); - if (!strcmp(subc, "ACK") && self.auth) { - size_t len = strlen(self.auth); - byte plain[1 + len]; - plain[0] = 0; - for (size_t i = 0; i < len; ++i) { - plain[1 + i] = (self.auth[i] == ':' ? 0 : self.auth[i]); - } - char b64[base64Size(sizeof(plain))]; - base64(b64, plain, sizeof(plain)); - ircFmt("AUTHENTICATE PLAIN\r\n"); - ircFmt("AUTHENTICATE %s\r\n", b64); - } - ircFmt("CAP END\r\n"); -} - -static void handleErrorErroneousNickname(char *prefix, char *params) { - char *mesg; - parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, NULL, &mesg); - uiFmt(TagStatus, UIHot, "You can't use that name here: \"%s\"", mesg); - uiLog(TagStatus, UICold, L"Type /nick <name> to choose a new one"); -} - -static void handleReplyWelcome(char *prefix, char *params) { - char *nick; - parse(prefix, NULL, NULL, NULL, params, 1, 0, &nick); - - if (strcmp(nick, self.nick)) { - free(self.nick); - self.nick = strdup(nick); - if (!self.nick) err(EX_OSERR, "strdup"); - uiPrompt(true); - } - if (self.join && self.keys) { - ircFmt("JOIN %s %s\r\n", self.join, self.keys); - } else if (self.join) { - ircFmt("JOIN %s\r\n", self.join); - } - tabTouch(TagStatus, self.nick); - - uiLog(TagStatus, UICold, L"You have arrived"); -} - -static void handleReplyMOTD(char *prefix, char *params) { - char *mesg; - parse(prefix, NULL, NULL, NULL, params, 2, 0, NULL, &mesg); - if (mesg[0] == '-' && mesg[1] == ' ') mesg = &mesg[2]; - - urlScan(TagStatus, mesg); - uiFmt(TagStatus, UICold, "%s", mesg); -} - -static void handleReplyList(char *prefix, char *params) { - char *chan, *count, *topic; - parse(prefix, NULL, NULL, NULL, params, 4, 0, NULL, &chan, &count, &topic); - if (topic[0] == '[') { - char *skip = strstr(topic, "] "); - if (skip) topic = &skip[2]; - } - const char *people = (strcmp(count, "1") ? "people" : "person"); - if (topic[0]) { - uiFmt( - TagStatus, UIWarm, - "You see %s %s in \3%d%s\3 under the banner, \"%s\"", - count, people, colorGen(chan), chan, topic - ); - } else { - uiFmt( - TagStatus, UIWarm, - "You see %s %s in \3%d%s\3", - count, people, colorGen(chan), chan - ); - } -} - -static void handleReplyListEnd(char *prefix, char *params) { - (void)prefix; - (void)params; - uiLog(TagStatus, UICold, L"You don't see anyone else"); -} - -static enum IRCColor whoisColor; -static void handleReplyWhoisUser(char *prefix, char *params) { - char *nick, *user, *host, *real; - parse( - prefix, NULL, NULL, NULL, - params, 6, 0, NULL, &nick, &user, &host, NULL, &real - ); - whoisColor = colorGen(user); - uiFmt( - TagStatus, UIWarm, - "\3%d%s\3 is %s@%s, \"%s\"", - whoisColor, nick, user, host, real - ); -} - -static void handleReplyWhoisServer(char *prefix, char *params) { - char *nick, *serv, *info; - parse(prefix, NULL, NULL, NULL, params, 4, 0, NULL, &nick, &serv, &info); - uiFmt( - TagStatus, UIWarm, - "\3%d%s\3 is connected to %s, \"%s\"", - whoisColor, nick, serv, info - ); -} - -static void handleReplyWhoisOperator(char *prefix, char *params) { - char *nick, *oper; - parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, &nick, &oper); - uiFmt(TagStatus, UIWarm, "\3%d%s\3 %s", whoisColor, nick, oper); -} - -static void handleReplyWhoisIdle(char *prefix, char *params) { - char *nick, *idle, *sign; - parse(prefix, NULL, NULL, NULL, params, 4, 0, NULL, &nick, &idle, &sign); - time_t time = strtoul(sign, NULL, 10); - const char *at = ctime(&time); - unsigned long secs = strtoul(idle, NULL, 10); - unsigned long mins = secs / 60; secs %= 60; - unsigned long hours = mins / 60; mins %= 60; - uiFmt( - TagStatus, UIWarm, - "\3%d%s\3 signed on at %.24s and has been idle for %02lu:%02lu:%02lu", - whoisColor, nick, at, hours, mins, secs - ); -} - -static void handleReplyWhoisChannels(char *prefix, char *params) { - char *nick, *chans; - parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, &nick, &chans); - uiFmt(TagStatus, UIWarm, "\3%d%s\3 is in %s", whoisColor, nick, chans); -} - -static void handleErrorNoSuchNick(char *prefix, char *params) { - char *nick, *mesg; - parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, &nick, &mesg); - uiFmt(TagStatus, UIWarm, "%s, \"%s\"", mesg, nick); -} - -static void handleJoin(char *prefix, char *params) { - char *nick, *user, *chan; - parse(prefix, &nick, &user, NULL, params, 1, 0, &chan); - struct Tag tag = colorTag(tagFor(chan), chan); - - if (!strcmp(nick, self.nick)) { - tabTouch(TagNone, chan); - uiShowTag(tag); - logReplay(tag); - } - tabTouch(tag, nick); - - uiFmt( - tag, UICold, - "\3%d%s\3 arrives in \3%d%s\3", - colorGen(user), nick, colorGen(chan), chan - ); - logFmt(tag, NULL, "%s arrives in %s", nick, chan); -} - -static void handlePart(char *prefix, char *params) { - char *nick, *user, *chan, *mesg; - parse(prefix, &nick, &user, NULL, params, 1, 1, &chan, &mesg); - struct Tag tag = colorTag(tagFor(chan), chan); - - if (!strcmp(nick, self.nick)) { - tabClear(tag); - } else { - tabRemove(tag, nick); - } - - if (mesg) { - urlScan(tag, mesg); - uiFmt( - tag, UICold, - "\3%d%s\3 leaves \3%d%s\3, \"%s\"", - colorGen(user), nick, colorGen(chan), chan, dequote(mesg) - ); - logFmt(tag, NULL, "%s leaves %s, \"%s\"", nick, chan, dequote(mesg)); - } else { - uiFmt( - tag, UICold, - "\3%d%s\3 leaves \3%d%s\3", - colorGen(user), nick, colorGen(chan), chan - ); - logFmt(tag, NULL, "%s leaves %s", nick, chan); - } -} - -static void handleKick(char *prefix, char *params) { - char *nick, *user, *chan, *kick, *mesg; - parse(prefix, &nick, &user, NULL, params, 2, 1, &chan, &kick, &mesg); - struct Tag tag = colorTag(tagFor(chan), chan); - bool kicked = !strcmp(kick, self.nick); - - if (kicked) { - tabClear(tag); - } else { - tabRemove(tag, kick); - } - - if (mesg) { - urlScan(tag, mesg); - uiFmt( - tag, (kicked ? UIHot : UICold), - "\3%d%s\3 kicks \3%d%s\3 out of \3%d%s\3, \"%s\"", - colorGen(user), nick, - colorGen(kick), kick, - colorGen(chan), chan, - dequote(mesg) - ); - logFmt( - tag, NULL, - "%s kicks %s out of %s, \"%s\"", nick, kick, chan, dequote(mesg) - ); - } else { - uiFmt( - tag, (kicked ? UIHot : UICold), - "\3%d%s\3 kicks \3%d%s\3 out of \3%d%s\3", - colorGen(user), nick, - colorGen(kick), kick, - colorGen(chan), chan - ); - logFmt(tag, NULL, "%s kicks %s out of %s", nick, kick, chan); - } -} - -static void handleQuit(char *prefix, char *params) { - char *nick, *user, *mesg; - parse(prefix, &nick, &user, NULL, params, 0, 1, &mesg); - - struct Tag tag; - while (TagNone.id != (tag = tabTag(nick)).id) { - tabRemove(tag, nick); - - if (mesg) { - urlScan(tag, mesg); - uiFmt( - tag, UICold, - "\3%d%s\3 leaves, \"%s\"", - colorGen(user), nick, dequote(mesg) - ); - logFmt(tag, NULL, "%s leaves, \"%s\"", nick, dequote(mesg)); - } else { - uiFmt(tag, UICold, "\3%d%s\3 leaves", colorGen(user), nick); - logFmt(tag, NULL, "%s leaves", nick); - } - } -} - -static void handleReplyTopic(char *prefix, char *params) { - char *chan, *topic; - parse(prefix, NULL, NULL, NULL, params, 3, 0, NULL, &chan, &topic); - struct Tag tag = colorTag(tagFor(chan), chan); - - urlScan(tag, topic); - uiFmt( - tag, UICold, - "The sign in \3%d%s\3 reads, \"%s\"", - colorGen(chan), chan, topic - ); - logFmt(tag, NULL, "The sign in %s reads, \"%s\"", chan, topic); -} - -static void handleTopic(char *prefix, char *params) { - char *nick, *user, *chan, *topic; - parse(prefix, &nick, &user, NULL, params, 2, 0, &chan, &topic); - struct Tag tag = colorTag(tagFor(chan), chan); - - if (strcmp(nick, self.nick)) tabTouch(tag, nick); - - urlScan(tag, topic); - uiFmt( - tag, UICold, - "\3%d%s\3 places a new sign in \3%d%s\3, \"%s\"", - colorGen(user), nick, colorGen(chan), chan, topic - ); - logFmt(tag, NULL, "%s places a new sign in %s, \"%s\"", nick, chan, topic); -} - -static void handleReplyEndOfNames(char *prefix, char *params) { - char *chan; - parse(prefix, NULL, NULL, NULL, params, 2, 0, NULL, &chan); - ircFmt("WHO %s\r\n", chan); -} - -static struct { - char buf[4096]; - size_t len; -} who; - -static void handleReplyWho(char *prefix, char *params) { - char *chan, *user, *nick; - parse( - prefix, NULL, NULL, NULL, - params, 6, 0, NULL, &chan, &user, NULL, NULL, &nick - ); - struct Tag tag = colorTag(tagFor(chan), chan); - - tabAdd(tag, nick); - - size_t cap = sizeof(who.buf) - who.len; - int len = snprintf( - &who.buf[who.len], cap, - "%s\3%d%s\3", - (who.len ? ", " : ""), colorGen(user), nick - ); - if ((size_t)len < cap) who.len += len; -} - -static void handleReplyEndOfWho(char *prefix, char *params) { - char *chan; - parse(prefix, NULL, NULL, NULL, params, 2, 0, NULL, &chan); - struct Tag tag = colorTag(tagFor(chan), chan); - - uiFmt( - tag, UICold, - "In \3%d%s\3 are %s", - colorGen(chan), chan, who.buf - ); - who.len = 0; -} - -static void handleNick(char *prefix, char *params) { - char *prev, *user, *next; - parse(prefix, &prev, &user, NULL, params, 1, 0, &next); - - if (!strcmp(prev, self.nick)) { - free(self.nick); - self.nick = strdup(next); - if (!self.nick) err(EX_OSERR, "strdup"); - uiPrompt(true); - } - - struct Tag tag; - while (TagNone.id != (tag = tabTag(prev)).id) { - tabReplace(tag, prev, next); - - uiFmt( - tag, UICold, - "\3%d%s\3 is now known as \3%d%s\3", - colorGen(user), prev, colorGen(user), next - ); - logFmt(tag, NULL, "%s is now known as %s", prev, next); - } -} - -static void handleCTCP(struct Tag tag, char *nick, char *user, char *mesg) { - mesg = &mesg[1]; - char *ctcp = strsep(&mesg, " "); - char *params = strsep(&mesg, "\1"); - if (strcmp(ctcp, "ACTION")) return; - - if (strcmp(nick, self.nick)) tabTouch(tag, nick); - - urlScan(tag, params); - bool ping = strcmp(nick, self.nick) && isPing(params); - uiFmt( - tag, (ping ? UIHot : UIWarm), - "%c\3%d* %s\17 %s", - ping["\17\26"], colorGen(user), nick, params - ); - logFmt(tag, NULL, "* %s %s", nick, params); -} - -static void handlePrivmsg(char *prefix, char *params) { - char *nick, *user, *chan, *mesg; - parse(prefix, &nick, &user, NULL, params, 2, 0, &chan, &mesg); - bool direct = !strcmp(chan, self.nick); - struct Tag tag = tagFor(direct ? nick : chan); - colorTag(tag, direct ? user : chan); - if (mesg[0] == '\1') { - handleCTCP(tag, nick, user, mesg); - return; - } - - bool me = !strcmp(nick, self.nick); - if (!me) tabTouch(tag, nick); - - urlScan(tag, mesg); - bool hot = !me && (direct || isPing(mesg)); - bool ping = !me && isPing(mesg); - uiFmt( - tag, (hot ? UIHot : UIWarm), - "%c%c\3%d<%s>%c %s", - (me ? IRCUnderline : IRCColor), (ping ? IRCReverse : IRCColor), - colorGen(user), nick, IRCReset, mesg - ); - logFmt(tag, NULL, "<%s> %s", nick, mesg); -} - -static void handleNotice(char *prefix, char *params) { - char *nick, *user, *chan, *mesg; - parse(prefix, &nick, &user, NULL, params, 2, 0, &chan, &mesg); - bool direct = !strcmp(chan, self.nick); - struct Tag tag = TagStatus; - if (user) { - tag = tagFor(direct ? nick : chan); - colorTag(tag, direct ? user : chan); - } - - if (strcmp(nick, self.nick)) tabTouch(tag, nick); - - urlScan(tag, mesg); - bool ping = strcmp(nick, self.nick) && isPing(mesg); - uiFmt( - tag, (ping ? UIHot : UIWarm), - "%c\3%d-%s-\17 %s", - ping["\17\26"], colorGen(user), nick, mesg - ); - logFmt(tag, NULL, "-%s- %s", nick, mesg); -} - -static const struct { - const char *command; - Handler *handler; -} Handlers[] = { - { "001", handleReplyWelcome }, - { "311", handleReplyWhoisUser }, - { "312", handleReplyWhoisServer }, - { "313", handleReplyWhoisOperator }, - { "315", handleReplyEndOfWho }, - { "317", handleReplyWhoisIdle }, - { "319", handleReplyWhoisChannels }, - { "322", handleReplyList }, - { "323", handleReplyListEnd }, - { "332", handleReplyTopic }, - { "352", handleReplyWho }, - { "366", handleReplyEndOfNames }, - { "372", handleReplyMOTD }, - { "375", handleReplyMOTD }, - { "401", handleErrorNoSuchNick }, - { "432", handleErrorErroneousNickname }, - { "433", handleErrorErroneousNickname }, - { "CAP", handleCap }, - { "ERROR", handleError }, - { "JOIN", handleJoin }, - { "KICK", handleKick }, - { "NICK", handleNick }, - { "NOTICE", handleNotice }, - { "PART", handlePart }, - { "PING", handlePing }, - { "PRIVMSG", handlePrivmsg }, - { "QUIT", handleQuit }, - { "TOPIC", handleTopic }, -}; -static const size_t HandlersLen = sizeof(Handlers) / sizeof(Handlers[0]); - -void handle(char *line) { - char *prefix = NULL; - if (line[0] == ':') { - prefix = strsep(&line, " ") + 1; - if (!line) errx(EX_PROTOCOL, "unexpected eol"); - } - char *command = strsep(&line, " "); - for (size_t i = 0; i < HandlersLen; ++i) { - if (strcmp(command, Handlers[i].command)) continue; - Handlers[i].handler(prefix, line); - break; - } -} |