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-rw-r--r--src/plugins/fifo/fifo.c291
1 files changed, 291 insertions, 0 deletions
diff --git a/src/plugins/fifo/fifo.c b/src/plugins/fifo/fifo.c
new file mode 100644
index 000000000..9a6f50e77
--- /dev/null
+++ b/src/plugins/fifo/fifo.c
@@ -0,0 +1,291 @@
+/*
+ * Copyright (c) 2003-2007 by FlashCode <flashcode@flashtux.org>
+ * See README for License detail, AUTHORS for developers list.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* fifo.c: FIFO pipe for WeeChat remote control */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "weechat.h"
+#include "fifo.h"
+#include "command.h"
+#include "log.h"
+#include "weeconfig.h"
+#include "../gui/gui.h"
+
+
+int weechat_fifo = -1;
+char *weechat_fifo_filename = NULL;
+char *weechat_fifo_unterminated = NULL;
+
+
+/*
+ * fifo_create: create FIFO pipe for remote control
+ */
+
+void
+fifo_create ()
+{
+ int filename_length;
+
+ if (cfg_irc_fifo_pipe)
+ {
+ /* build FIFO filename: "<weechat_home>/weechat_fifo_" + process PID */
+ if (!weechat_fifo_filename)
+ {
+ filename_length = strlen (weechat_home) + 64;
+ weechat_fifo_filename = (char *) malloc (filename_length * sizeof (char));
+ snprintf (weechat_fifo_filename, filename_length, "%s/weechat_fifo_%d",
+ weechat_home, (int) getpid());
+ }
+
+ /* create FIFO pipe, writable for user only */
+ if ((weechat_fifo = mkfifo (weechat_fifo_filename, 0600)) != 0)
+ {
+ weechat_fifo = -1;
+ gui_printf (NULL,
+ _("%s unable to create FIFO pipe for remote control (%s)\n"),
+ WEECHAT_ERROR, weechat_fifo_filename);
+ weechat_log_printf (_("%s unable to create FIFO pipe for "
+ "remote control (%s)\n"),
+ WEECHAT_ERROR, weechat_fifo_filename);
+ return;
+ }
+
+ /* open FIFO pipe in read-only (for WeeChat), non nlobking mode */
+ if ((weechat_fifo = open (weechat_fifo_filename, O_RDONLY | O_NONBLOCK)) == -1)
+ {
+ gui_printf (NULL,
+ _("%s unable to open FIFO pipe (%s) for reading\n"),
+ WEECHAT_ERROR, weechat_fifo_filename);
+ weechat_log_printf (_("%s unable to open FIFO pipe (%s) for reading\n"),
+ WEECHAT_ERROR, weechat_fifo_filename);
+ return;
+ }
+
+ weechat_log_printf (_("FIFO pipe is open\n"));
+ }
+}
+
+/*
+ * fifo_exec: execute a command/text received by FIFO pipe
+ */
+
+void
+fifo_exec (char *text)
+{
+ char *pos_msg, *pos;
+ t_irc_server *ptr_server;
+ t_irc_channel *ptr_channel;
+
+ pos = NULL;
+ ptr_server = NULL;
+ ptr_channel = NULL;
+
+ /* look for server/channel at beginning of text */
+ /* text may be: "server,channel *text" or "server *text" or "*text" */
+ if (text[0] == '*')
+ {
+ pos_msg = text + 1;
+ if (gui_current_window->buffer->has_input)
+ {
+ ptr_server = GUI_SERVER(gui_current_window->buffer);
+ ptr_channel = GUI_CHANNEL(gui_current_window->buffer);
+ }
+ else
+ {
+ ptr_server = GUI_SERVER(gui_buffers);
+ ptr_channel = NULL;
+ }
+ }
+ else
+ {
+ pos_msg = strstr (text, " *");
+ if (!pos_msg)
+ {
+ irc_display_prefix (NULL, NULL, GUI_PREFIX_ERROR);
+ gui_printf (NULL, _("%s invalid text received on FIFO pipe\n"),
+ WEECHAT_WARNING);
+ return;
+ }
+ pos_msg[0] = '\0';
+ pos = pos_msg - 1;
+ pos_msg += 2;
+ while ((pos >= text) && (pos[0] == ' '))
+ {
+ pos[0] = '\0';
+ pos--;
+ }
+
+ if (text[0])
+ {
+ pos = strchr (text, ',');
+ if (pos)
+ pos[0] = '\0';
+ ptr_server = irc_server_search (text);
+ if (!ptr_server || !ptr_server->buffer)
+ {
+ irc_display_prefix (NULL, NULL, GUI_PREFIX_ERROR);
+ gui_printf (NULL, _("%s server \"%s\" not found (FIFO pipe data)\n"),
+ WEECHAT_WARNING, text);
+ return;
+ }
+ if (ptr_server && pos)
+ {
+ ptr_channel = irc_channel_search_any (ptr_server, pos + 1);
+ if (!ptr_channel)
+ {
+ irc_display_prefix (NULL, NULL, GUI_PREFIX_ERROR);
+ gui_printf (NULL,
+ _("%s channel \"%s\" not found (FIFO pipe data)\n"),
+ WEECHAT_WARNING, pos + 1);
+ return;
+ }
+ }
+ }
+ }
+
+ user_command (ptr_server, ptr_channel, pos_msg, 0);
+}
+
+/*
+ * fifo_read: read data in FIFO pipe
+ */
+
+void
+fifo_read ()
+{
+ static char buffer[4096 + 2];
+ char *buf2, *pos, *ptr_buf, *next_ptr_buf;
+ int num_read;
+
+ num_read = read (weechat_fifo, buffer, sizeof (buffer) - 2);
+ if (num_read > 0)
+ {
+ buffer[num_read] = '\0';
+
+ buf2 = NULL;
+ ptr_buf = buffer;
+ if (weechat_fifo_unterminated)
+ {
+ buf2 = (char *) malloc (strlen (weechat_fifo_unterminated) +
+ strlen (buffer) + 1);
+ if (buf2)
+ {
+ strcpy (buf2, weechat_fifo_unterminated);
+ strcat (buf2, buffer);
+ }
+ ptr_buf = buf2;
+ free (weechat_fifo_unterminated);
+ weechat_fifo_unterminated = NULL;
+ }
+
+ while (ptr_buf && ptr_buf[0])
+ {
+ next_ptr_buf = NULL;
+ pos = strstr (ptr_buf, "\r\n");
+ if (pos)
+ {
+ pos[0] = '\0';
+ next_ptr_buf = pos + 2;
+ }
+ else
+ {
+ pos = strstr (ptr_buf, "\n");
+ if (pos)
+ {
+ pos[0] = '\0';
+ next_ptr_buf = pos + 1;
+ }
+ else
+ {
+ weechat_fifo_unterminated = strdup (ptr_buf);
+ ptr_buf = NULL;
+ next_ptr_buf = NULL;
+ }
+ }
+
+ if (ptr_buf)
+ fifo_exec (ptr_buf);
+
+ ptr_buf = next_ptr_buf;
+ }
+
+ if (buf2)
+ free (buf2);
+ }
+ else
+ {
+ if (num_read < 0)
+ {
+ gui_printf (NULL,
+ _("%s error reading FIFO pipe, closing it\n"),
+ WEECHAT_ERROR);
+ weechat_log_printf (_("%s error reading FIFO pipe, closing it\n"),
+ WEECHAT_ERROR);
+ fifo_remove ();
+ }
+ else
+ {
+ close (weechat_fifo);
+ weechat_fifo = open (weechat_fifo_filename, O_RDONLY | O_NONBLOCK);
+ }
+ }
+}
+
+/*
+ * fifo_remove: remove FIFO pipe
+ */
+
+void
+fifo_remove ()
+{
+ if (weechat_fifo != -1)
+ {
+ /* close FIFO pipe */
+ close (weechat_fifo);
+ weechat_fifo = -1;
+ }
+
+ /* remove FIFO from disk */
+ if (weechat_fifo_filename)
+ unlink (weechat_fifo_filename);
+
+ if (weechat_fifo_unterminated)
+ {
+ free (weechat_fifo_unterminated);
+ weechat_fifo_unterminated = NULL;
+ }
+
+ if (weechat_fifo_filename)
+ {
+ free (weechat_fifo_filename);
+ weechat_fifo_filename = NULL;
+ }
+
+ weechat_log_printf (_("FIFO pipe is closed\n"));
+}
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