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-rw-r--r--Makefile2
-rw-r--r--README1
-rw-r--r--chat.c2
-rw-r--r--chat.h5
-rw-r--r--handle.c8
-rw-r--r--input.c17
-rw-r--r--irc.c12
-rw-r--r--ui.c13
-rw-r--r--url.c95
9 files changed, 145 insertions, 10 deletions
diff --git a/Makefile b/Makefile
index 4a956b2..57369d6 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@ CFLAGS += -Wall -Wextra -Wpedantic
CFLAGS += -I/usr/local/include -I/usr/local/opt/libressl/include
LDFLAGS += -L/usr/local/lib -L/usr/local/opt/libressl/lib
LDLIBS = -lcursesw -ltls
-OBJS = chat.o edit.o handle.o input.o irc.o pls.o tab.o ui.o
+OBJS = chat.o edit.o handle.o input.o irc.o pls.o tab.o ui.o url.o
all: tags chat
diff --git a/README b/README
index b94a55a..8fa4ad7 100644
--- a/README
+++ b/README
@@ -10,4 +10,5 @@ This software requires LibreSSL and targets FreeBSD and Darwin.
input.c Input command handling
handle.c Incoming command handling
tab.c Tab-complete
+ url.c URL detection
pls.c Functions which should not have to be written
diff --git a/chat.c b/chat.c
index 4d3f505..b966fd1 100644
--- a/chat.c
+++ b/chat.c
@@ -31,7 +31,7 @@
static void sigint(int sig) {
(void)sig;
input("/quit");
- uiHide();
+ uiExit();
exit(EX_OK);
}
diff --git a/chat.h b/chat.h
index 3ded5db..3a84b6c 100644
--- a/chat.h
+++ b/chat.h
@@ -50,6 +50,7 @@ void ircFmt(const char *format, ...);
void uiInit(void);
void uiHide(void);
+void uiExit(void);
void uiDraw(void);
void uiBeep(void);
void uiRead(void);
@@ -77,6 +78,10 @@ void handle(char *line);
void inputTab(void);
void input(char *line);
+void urlScan(const char *str);
+void urlList(void);
+void urlOpen(size_t i);
+
void tabTouch(const char *word);
void tabRemove(const char *word);
void tabReplace(const char *prev, const char *next);
diff --git a/handle.c b/handle.c
index 10bce42..f6b3e5d 100644
--- a/handle.c
+++ b/handle.c
@@ -141,11 +141,12 @@ static void handle332(char *prefix, char *params) {
shift(&params);
char *chan = shift(&params);
char *topic = shift(&params);
+ urlScan(topic);
+ uiTopicStr(topic);
uiFmt(
"The sign in \3%d%s\3 reads, \"%s\"",
color(chan), chan, topic
);
- uiTopicStr(topic);
}
static void handleTopic(char *prefix, char *params) {
@@ -153,11 +154,12 @@ static void handleTopic(char *prefix, char *params) {
char *user = prift(&prefix);
char *chan = shift(&params);
char *topic = shift(&params);
+ urlScan(topic);
+ uiTopicStr(topic);
uiFmt(
"\3%d%s\3 places a new sign in \3%d%s\3, \"%s\"",
color(user), nick, color(chan), chan, topic
);
- uiTopicStr(topic);
}
static void handle366(char *prefix, char *params) {
@@ -222,6 +224,7 @@ static void handlePrivmsg(char *prefix, char *params) {
shift(&params);
char *mesg = shift(&params);
tabTouch(nick);
+ urlScan(mesg);
bool self = !strcmp(user, chat.user);
bool ping = !strncasecmp(mesg, chat.nick, strlen(chat.nick));
if (ping) uiBeep();
@@ -244,6 +247,7 @@ static void handleNotice(char *prefix, char *params) {
char *mesg = shift(&params);
if (strcmp(chat.chan, chan)) return;
tabTouch(nick);
+ urlScan(mesg);
uiFmt("-\3%d%s\3- %s", color(user), nick, mesg);
}
diff --git a/input.c b/input.c
index 0ac64f5..64102e2 100644
--- a/input.c
+++ b/input.c
@@ -73,6 +73,21 @@ static void inputQuit(char *params) {
}
}
+static void inputUrl(char *params) {
+ (void)params;
+ urlList();
+}
+static void inputOpen(char *params) {
+ if (!params) { urlOpen(1); return; }
+ size_t from = strtoul(strsep(&params, "-,"), NULL, 0);
+ if (!params) { urlOpen(from); return; }
+ size_t to = strtoul(strsep(&params, "-,"), NULL, 0);
+ if (to < from) to = from;
+ for (size_t i = from; i <= to; ++i) {
+ urlOpen(i);
+ }
+}
+
static const struct {
const char *command;
Handler handler;
@@ -80,8 +95,10 @@ static const struct {
{ "/me", inputMe },
{ "/names", inputWho },
{ "/nick", inputNick },
+ { "/open", inputOpen },
{ "/quit", inputQuit },
{ "/topic", inputTopic },
+ { "/url", inputUrl },
{ "/who", inputWho },
};
static const size_t COMMANDS_LEN = sizeof(COMMANDS) / sizeof(COMMANDS[0]);
diff --git a/irc.c b/irc.c
index 02a9f64..b718b13 100644
--- a/irc.c
+++ b/irc.c
@@ -15,16 +15,17 @@
*/
#include <err.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <netinet/in.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/socket.h>
#include <sysexits.h>
#include <tls.h>
#include <unistd.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
#include "chat.h"
@@ -68,6 +69,9 @@ int ircConnect(const char *host, const char *port, const char *webPass) {
int sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
if (sock < 0) err(EX_OSERR, "socket");
+ error = fcntl(sock, F_SETFD, FD_CLOEXEC);
+ if (error) err(EX_IOERR, "fcntl");
+
error = connect(sock, ai->ai_addr, ai->ai_addrlen);
if (error) err(EX_UNAVAILABLE, "connect");
freeaddrinfo(ai);
@@ -111,7 +115,7 @@ void ircRead(void) {
ssize_t read = tls_read(client, &buf[len], sizeof(buf) - len);
if (read < 0) errx(EX_IOERR, "tls_read: %s", tls_error(client));
if (!read) {
- uiHide();
+ uiExit();
exit(EX_OK);
}
len += read;
diff --git a/ui.c b/ui.c
index be7fc15..9778473 100644
--- a/ui.c
+++ b/ui.c
@@ -99,8 +99,9 @@ static struct {
WINDOW *topic;
WINDOW *log;
WINDOW *input;
- int scroll;
+ bool hide;
bool mark;
+ int scroll;
} ui;
void uiInit(void) {
@@ -135,8 +136,13 @@ static void uiResize(void) {
}
void uiHide(void) {
- focusDisable();
+ ui.hide = true;
endwin();
+}
+
+void uiExit(void) {
+ uiHide();
+ focusDisable();
printf(
"This program is AGPLv3 free software!\n"
"The source is available at <" SOURCE_URL ">.\n"
@@ -144,6 +150,7 @@ void uiHide(void) {
}
void uiDraw(void) {
+ if (ui.hide) return;
pnoutrefresh(
ui.topic,
0, 0,
@@ -359,6 +366,8 @@ static bool keyCode(wint_t ch) {
}
void uiRead(void) {
+ ui.hide = false;
+
bool update = false;
int ret;
wint_t ch;
diff --git a/url.c b/url.c
new file mode 100644
index 0000000..33652ff
--- /dev/null
+++ b/url.c
@@ -0,0 +1,95 @@
+/* Copyright (C) 2018 Curtis 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 <assert.h>
+#include <err.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#include "chat.h"
+
+static const char *SCHEMES[] = {
+ "https:",
+ "http:",
+ "ftp:",
+};
+static const size_t SCHEMES_LEN = sizeof(SCHEMES) / sizeof(SCHEMES[0]);
+
+enum { RING_LEN = 16 };
+static char *ring[RING_LEN];
+static size_t last;
+static_assert(!(RING_LEN & (RING_LEN - 1)), "power of two RING_LEN");
+
+static void push(const char *url, size_t len) {
+ free(ring[last]);
+ ring[last++] = strndup(url, len);
+ last &= RING_LEN - 1;
+}
+
+void urlScan(const char *str) {
+ while (str[0]) {
+ size_t len = 1;
+ for (size_t i = 0; i < SCHEMES_LEN; ++i) {
+ if (strncmp(str, SCHEMES[i], strlen(SCHEMES[i]))) continue;
+ len = strcspn(str, " >\"");
+ push(str, len);
+ }
+ str = &str[len];
+ }
+}
+
+void urlList(void) {
+ uiHide();
+ for (size_t i = 0; i < RING_LEN; ++i) {
+ char *url = ring[(i + last) & (RING_LEN - 1)];
+ if (url) printf("%s\n", url);
+ }
+}
+
+void urlOpen(size_t i) {
+ char *url = ring[(last - i) & (RING_LEN - 1)];
+ if (!url) return;
+
+ int fd[2];
+ int error = pipe(fd);
+ if (error) err(EX_OSERR, "pipe");
+
+ pid_t pid = fork();
+ if (pid < 0) err(EX_OSERR, "fork");
+
+ if (!pid) {
+ close(STDIN_FILENO);
+ dup2(fd[1], STDOUT_FILENO);
+ dup2(fd[1], STDERR_FILENO);
+ execlp("open", "open", url, NULL);
+ perror("open");
+ exit(EX_CONFIG);
+ }
+ close(fd[1]);
+
+ // FIXME: This should technically go on the main event loop.
+ char buf[256];
+ ssize_t len = read(fd[0], buf, sizeof(buf) - 1);
+ if (len < 0) err(EX_IOERR, "read");
+ if (len) {
+ buf[len] = '\0';
+ len = strcspn(buf, "\n");
+ uiFmt("%.*s", (int)len, buf);
+ }
+ close(fd[0]);
+}
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-03 21:11:10 +0000