Remove legacy code

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(&params);
-		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(&params);
-		} 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;
-	}
-}