From 8ef0af34ef1c62c52cfdbe3f440d6017b0feda6f Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Sun, 2 Feb 2020 01:58:03 -0500
Subject: [PATCH] Parse time tag

---
 handle.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/handle.c b/handle.c
index b2b2b8d..9157419 100644
--- a/handle.c
+++ b/handle.c
@@ -65,8 +65,6 @@ static void set(char **field, const char *value) {
 	if (!*field) err(EX_OSERR, "strdup");
 }
 
-typedef void Handler(struct Message *msg);
-
 static void require(const struct Message *msg, bool origin, size_t len) {
 	if (origin && !msg->nick) {
 		errx(EX_PROTOCOL, "%s missing origin", msg->cmd);
@@ -77,6 +75,16 @@ static void require(const struct Message *msg, bool origin, size_t len) {
 	}
 }
 
+static const struct tm *tagTime(const struct Message *msg) {
+	if (!msg->tags[TagTime]) return NULL;
+	static struct tm time;
+	char *rest = strptime(msg->tags[TagTime], "%FT%T", &time);
+	time.tm_gmtoff = 0;
+	return (rest ? &time : NULL);
+}
+
+typedef void Handler(struct Message *msg);
+
 static void handleCap(struct Message *msg) {
 	require(msg, false, 3);
 	enum Cap caps = capParse(msg->params[2]);
@@ -143,7 +151,10 @@ static void handleReplyISupport(struct Message *msg) {
 		char *key = strsep(&msg->params[i], "=");
 		if (!msg->params[i]) continue;
 		if (!strcmp(key, "NETWORK")) {
-			uiFormat(Network, Cold, NULL, "You arrive in %s", msg->params[i]);
+			uiFormat(
+				Network, Cold, tagTime(msg),
+				"You arrive in %s", msg->params[i]
+			);
 		}
 	}
 }
@@ -152,7 +163,12 @@ static void handleReplyMOTD(struct Message *msg) {
 	require(msg, false, 2);
 	char *line = msg->params[1];
 	if (!strncmp(line, "- ", 2)) line += 2;
-	uiFormat(Network, Cold, NULL, "%s", line);
+	uiFormat(Network, Cold, tagTime(msg), "%s", line);
+}
+
+static void handlePing(struct Message *msg) {
+	require(msg, false, 1);
+	ircFormat("PONG :%s\r\n", msg->params[0]);
 }
 
 static const struct Handler {
@@ -168,6 +184,7 @@ static const struct Handler {
 	{ "906", handleErrorSASLFail },
 	{ "AUTHENTICATE", handleAuthenticate },
 	{ "CAP", handleCap },
+	{ "PING", handlePing },
 };
 
 static int compar(const void *cmd, const void *_handler) {