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-rw-r--r--chat.c286
1 files changed, 240 insertions, 46 deletions
diff --git a/chat.c b/chat.c
index 8442fa9..0b1826a 100644
--- a/chat.c
+++ b/chat.c
@@ -21,6 +21,7 @@
#include <netinet/in.h>
#include <poll.h>
#include <stdarg.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -29,6 +30,9 @@
#include <tls.h>
#include <unistd.h>
+#define err(...) do { endwin(); err(__VA_ARGS__); } while (0)
+#define errx(...) do { endwin(); errx(__VA_ARGS__); } while (0)
+
static void curse(void) {
setlocale(LC_CTYPE, "");
initscr();
@@ -37,46 +41,209 @@ static void curse(void) {
assume_default_colors(-1, -1);
}
-static void writeAll(struct tls *client, const char *ptr, size_t len) {
+static const int CHAT_LINES = 100;
+static struct {
+ WINDOW *topic;
+ WINDOW *chat;
+ WINDOW *input;
+} ui;
+
+static void uiInit(void) {
+ ui.topic = newwin(2, COLS, 0, 0);
+ mvwhline(ui.topic, 1, 0, ACS_HLINE, COLS);
+
+ ui.chat = newpad(CHAT_LINES, COLS);
+ wsetscrreg(ui.chat, 0, CHAT_LINES - 1);
+ scrollok(ui.chat, true);
+ wmove(ui.chat, CHAT_LINES - (LINES - 4) - 1, 0);
+
+ ui.input = newwin(2, COLS, LINES - 2, 0);
+ mvwhline(ui.input, 0, 0, ACS_HLINE, COLS);
+ wmove(ui.input, 1, 0);
+}
+
+static void uiDraw(void) {
+ wnoutrefresh(ui.topic);
+ pnoutrefresh(
+ ui.chat,
+ CHAT_LINES - (LINES - 4), 0,
+ 2, 0, LINES - 1, COLS - 1
+ );
+ wnoutrefresh(ui.input);
+ doupdate();
+}
+
+static void uiTopic(const char *topic) {
+ wmove(ui.topic, 0, 0);
+ wclrtoeol(ui.topic);
+ waddnstr(ui.topic, topic, COLS);
+}
+static void uiChat(const char *line) {
+ waddch(ui.chat, '\n');
+ waddstr(ui.chat, line);
+}
+static void uiFmt(const char *format, ...) {
+ char *buf;
+ va_list ap;
+ va_start(ap, format);
+ vasprintf(&buf, format, ap);
+ va_end(ap);
+ if (!buf) err(EX_OSERR, "vasprintf");
+ uiChat(buf);
+ free(buf);
+}
+
+static struct {
+ int sock;
+ struct tls *tls;
+ bool verbose;
+ char *nick;
+ char *chan;
+} client;
+
+static void clientWrite(const char *ptr, size_t len) {
while (len) {
- ssize_t ret = tls_write(client, ptr, len);
+ ssize_t ret = tls_write(client.tls, ptr, len);
if (ret == TLS_WANT_POLLIN || ret == TLS_WANT_POLLOUT) continue;
- if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(client));
+ if (ret < 0) errx(EX_IOERR, "tls_write: %s", tls_error(client.tls));
ptr += ret;
len -= ret;
}
}
-
-static void command(struct tls *client, const char *format, ...) {
+static void clientFmt(const char *format, ...) {
char *buf;
va_list ap;
va_start(ap, format);
int len = vasprintf(&buf, format, ap);
va_end(ap);
if (!buf) err(EX_OSERR, "vasprintf");
- writeAll(client, buf, len);
+ if (client.verbose) uiFmt("<<< %.*s", len - 2, buf);
+ clientWrite(buf, len);
free(buf);
}
-static void handle(struct tls *client, const char *line) {
- addstr(line);
- addch('\n');
- refresh();
+typedef void (*Handler)(char *prefix, char *params);
+
+static char *shift(char **params) {
+ char *rest = *params;
+ if (!rest) errx(EX_PROTOCOL, "expected param");
+ if (rest[0] == ':') {
+ *params = NULL;
+ return &rest[1];
+ }
+ return strsep(params, " ");
+}
+
+static void handle001(char *prefix, char *params) {
+ (void)prefix; (void)params;
+ clientFmt("JOIN %s\r\n", client.chan);
}
-static void readClient(struct tls *client) {
+static void handlePing(char *prefix, char *params) {
+ (void)prefix;
+ clientFmt("PONG %s\r\n", params);
+}
+
+static void handleJoin(char *prefix, char *params) {
+ char *nick = strsep(&prefix, "!");
+ char *chan = shift(&params);
+ uiFmt("--> %s arrived in %s", nick, chan);
+}
+static void handlePart(char *prefix, char *params) {
+ char *nick = strsep(&prefix, "!");
+ char *chan = shift(&params);
+ char *reason = shift(&params);
+ uiFmt("<-- %s left %s, \"%s\"", nick, chan, reason);
+}
+static void handleQuit(char *prefix, char *params) {
+ char *nick = strsep(&prefix, "!");
+ char *reason = shift(&params);
+ uiFmt("<-- %s left, \"%s\"", nick, reason);
+}
+
+static void handle332(char *prefix, char *params) {
+ (void)prefix;
+ shift(&params);
+ char *chan = shift(&params);
+ char *topic = shift(&params);
+ uiTopic(topic);
+ uiFmt("--- The sign in %s reads, \"%s\"", chan, topic);
+}
+static void handleTopic(char *prefix, char *params) {
+ char *nick = strsep(&prefix, "!");
+ char *chan = shift(&params);
+ char *topic = shift(&params);
+ uiTopic(topic);
+ uiFmt("--- %s placed a new sign in %s, \"%s\"", nick, chan, topic);
+}
+
+static void handle353(char *prefix, char *params) {
+ (void)prefix;
+ shift(&params);
+ shift(&params);
+ char *chan = shift(&params);
+ char *names = shift(&params);
+ // TODO: Clean up names (add commas, remove sigils)
+ uiFmt("--- In %s are %s", chan, names);
+}
+
+static void handlePrivmsg(char *prefix, char *params) {
+ char *nick = strsep(&prefix, "!");
+ shift(&params);
+ char *message = shift(&params);
+ uiFmt("<%s> %s", nick, message);
+}
+static void handleNotice(char *prefix, char *params) {
+ char *nick = strsep(&prefix, "!");
+ shift(&params);
+ char *message = shift(&params);
+ uiFmt("-%s- %s", nick, message);
+}
+
+static const struct {
+ const char *command;
+ Handler handler;
+} HANDLERS[] = {
+ { "001", handle001 },
+ { "332", handle332 },
+ { "353", handle353 },
+ { "JOIN", handleJoin },
+ { "NOTICE", handleNotice },
+ { "PART", handlePart },
+ { "PING", handlePing },
+ { "PRIVMSG", handlePrivmsg },
+ { "QUIT", handleQuit },
+ { "TOPIC", handleTopic },
+};
+static const size_t HANDLERS_LEN = sizeof(HANDLERS) / sizeof(HANDLERS[0]);
+
+static void handle(char *line) {
+ char *prefix = NULL;
+ if (line[0] == ':') {
+ prefix = strsep(&line, " ") + 1;
+ if (!line) errx(EX_PROTOCOL, "eol after prefix");
+ }
+ char *command = strsep(&line, " ");
+ for (size_t i = 0; i < HANDLERS_LEN; ++i) {
+ if (strcmp(command, HANDLERS[i].command)) continue;
+ HANDLERS[i].handler(prefix, line);
+ break;
+ }
+}
+
+static void clientRead(void) {
static char buf[4096];
static size_t fill;
- ssize_t size = tls_read(client, buf + fill, sizeof(buf) - fill);
- if (size < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client));
+ ssize_t size = tls_read(client.tls, buf + fill, sizeof(buf) - fill);
+ if (size < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client.tls));
fill += size;
- char *end;
- char *line = buf;
+ char *end, *line = buf;
while ((end = strnstr(line, "\r\n", buf + fill - line))) {
end[0] = '\0';
- handle(client, line);
+ if (client.verbose) uiFmt(">>> %s", line);
+ handle(line);
line = &end[2];
}
@@ -84,14 +251,34 @@ static void readClient(struct tls *client) {
memmove(buf, line, fill);
}
-static void readInput(void) {
+static void uiRead(void) {
+ static char buf[256];
+ static size_t fill;
+
+ // TODO:
+ int ch = wgetch(ui.input);
+ if (ch == '\n') {
+ buf[fill] = '\0';
+ char *params;
+ asprintf(&params, "%s :%s", client.chan, buf);
+ if (!params) err(EX_OSERR, "asprintf");
+ clientFmt("PRIVMSG %s\r\n", params);
+ handlePrivmsg(client.nick, params);
+ free(params);
+ fill = 0;
+ wmove(ui.input, 1, 0);
+ wclrtoeol(ui.input);
+ } else {
+ buf[fill++] = ch;
+ waddch(ui.input, ch);
+ }
}
-static void webirc(struct tls *client, const char *pass, const char *user) {
+static void webirc(const char *pass) {
const char *ssh = getenv("SSH_CLIENT");
if (!ssh) return;
int len = strchrnul(ssh, ' ') - ssh;
- command(client, "WEBIRC %s %s %.*s %.*s\r\n", pass, user, len, ssh, len, ssh);
+ clientFmt("WEBIRC %s %s %.*s %.*s\r\n", pass, client.nick, len, ssh, len, ssh);
}
int main(int argc, char *argv[]) {
@@ -99,17 +286,16 @@ int main(int argc, char *argv[]) {
const char *host = NULL;
const char *port = "6697";
- const char *join = NULL;
- const char *nick = NULL;
const char *webPass = NULL;
int opt;
- while (0 < (opt = getopt(argc, argv, "h:j:n:p:w:"))) {
+ while (0 < (opt = getopt(argc, argv, "h:j:n:p:vw:"))) {
switch (opt) {
break; case 'h': host = optarg;
- break; case 'j': join = optarg;
- break; case 'n': nick = optarg;
+ break; case 'j': client.chan = strdup(optarg);
+ break; case 'n': client.nick = strdup(optarg);
break; case 'p': port = optarg;
+ break; case 'v': client.verbose = true;
break; case 'w': webPass = optarg;
break; default: return EX_USAGE;
}
@@ -118,23 +304,30 @@ int main(int argc, char *argv[]) {
curse();
char hostBuf[64] = {0};
- char joinBuf[64] = {0};
- char nickBuf[16] = {0};
if (!host) {
addstr("Host: ");
getnstr(hostBuf, sizeof(hostBuf) - 1);
host = hostBuf;
}
- if (!join) {
+ if (!client.chan) {
+ char buf[64] = {0};
addstr("Join: ");
- getnstr(joinBuf, sizeof(joinBuf) - 1);
- join = joinBuf;
+ getnstr(buf, sizeof(buf) - 1);
+ client.chan = strdup(buf);
}
- if (!nick) {
- addstr("Nick: ");
- getnstr(nickBuf, sizeof(nickBuf) - 1);
- nick = nickBuf;
+ if (!client.nick) {
+ char buf[16] = {0};
+ addstr("Name: ");
+ getnstr(buf, sizeof(buf) - 1);
+ client.nick = strdup(buf);
}
+ erase();
+ cbreak();
+ noecho();
+
+ uiInit();
+ uiChat("=== Traveling...");
+ uiDraw();
struct addrinfo *ai;
struct addrinfo hints = {
@@ -145,35 +338,36 @@ int main(int argc, char *argv[]) {
error = getaddrinfo(host, port, &hints, &ai);
if (error) errx(EX_NOHOST, "getaddrinfo: %s", gai_strerror(error));
- int sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
- if (sock < 0) err(EX_OSERR, "socket");
+ client.sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+ if (client.sock < 0) err(EX_OSERR, "socket");
- error = connect(sock, ai->ai_addr, ai->ai_addrlen);
+ error = connect(client.sock, ai->ai_addr, ai->ai_addrlen);
if (error) err(EX_UNAVAILABLE, "connect");
freeaddrinfo(ai);
- struct tls *client = tls_client();
- if (!client) errx(EX_OSERR, "tls_client");
+ client.tls = tls_client();
+ if (!client.tls) errx(EX_OSERR, "tls_client");
struct tls_config *config = tls_config_new();
- error = tls_configure(client, config);
+ error = tls_configure(client.tls, config);
if (error) errx(EX_OSERR, "tls_configure");
tls_config_free(config);
- error = tls_connect_socket(client, sock, host);
+ error = tls_connect_socket(client.tls, client.sock, host);
if (error) err(EX_PROTOCOL, "tls_connect");
- if (webPass) webirc(client, webPass, nick);
- command(client, "NICK %s\r\n", nick);
- command(client, "USER %s x x :%s\r\n", nick, nick);
+ if (webPass) webirc(webPass);
+ clientFmt("NICK %s\r\n", client.nick);
+ clientFmt("USER %s x x :%s\r\n", client.nick, client.nick);
struct pollfd fds[2] = {
{ .fd = STDIN_FILENO, .events = POLLIN },
- { .fd = sock, .events = POLLIN },
+ { .fd = client.sock, .events = POLLIN },
};
while (0 < poll(fds, 2, -1)) {
- if (fds[0].revents) readInput();
- if (fds[1].revents) readClient(client);
+ if (fds[0].revents) uiRead();
+ if (fds[1].revents) clientRead();
+ uiDraw();
}
err(EX_IOERR, "poll");
}
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-05 08:09:29 +0000