static void send_open_command(gint sock, gint argc, gchar **argv)
{
gint i;
gchar *filename;
g_return_if_fail(argc > 1);
geany_debug("using running instance of Geany");
if (cl_options.goto_line >= 0)
{
gchar *line = g_strdup_printf("%d\n", cl_options.goto_line);
socket_fd_write_all(sock, "line\n", 5);
socket_fd_write_all(sock, line, strlen(line));
socket_fd_write_all(sock, ".\n", 2);
g_free(line);
}
if (cl_options.goto_column >= 0)
{
gchar *col = g_strdup_printf("%d\n", cl_options.goto_column);
socket_fd_write_all(sock, "column\n", 7);
socket_fd_write_all(sock, col, strlen(col));
socket_fd_write_all(sock, ".\n", 2);
g_free(col);
}
socket_fd_write_all(sock, "open\n", 5);
for (i = 1; i < argc && argv[i] != NULL; i++)
{
filename = main_get_argv_filename(argv[i]);
/* if the filename is valid or if a new file should be opened is check on the other side */
if (filename != NULL)
{
socket_fd_write_all(sock, filename, strlen(filename));
socket_fd_write_all(sock, "\n", 1);
}
else
{
g_printerr(_("Could not find file '%s'."), filename);
g_printerr("\n"); /* keep translation from open_cl_files() in main.c. */
}
g_free(filename);
}
socket_fd_write_all(sock, ".\n", 2);
}
/* (Unix domain) socket support; taken from Geany */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
if (socket_info.file_name == NULL)
socket_info.file_name = g_strconcat ("/tmp/xarchiver_",g_get_user_name(),"_socket",NULL);
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
unlink(socket_info.file_name);
return socket_fd_open_unix(socket_info.file_name);
}
// remote command mode, here we have another running instance and want to use it
if (argc > 1)
{
gint i;
gchar *filename;
socket_fd_write_all(sock, "open\n", 5);
for(i = 1; i < argc && argv[i] != NULL; i++)
{
filename = argv[i];
if (filename != NULL)
{
socket_fd_write_all(sock, filename, strlen(filename));
socket_fd_write_all(sock, "\n", 1);
}
}
socket_fd_write_all(sock, ".\n", 2);
}
socket_fd_close(sock);
return -1;
}
static void socket_get_document_list(gint sock)
{
gchar doc_list[BUFFER_LENGTH];
gint doc_list_len;
if (sock < 0)
return;
socket_fd_write_all(sock, "doclist\n", 8);
doc_list_len = socket_fd_read(sock, doc_list, sizeof(doc_list));
if (doc_list_len >= BUFFER_LENGTH)
doc_list_len = BUFFER_LENGTH -1;
doc_list[doc_list_len] = '\0';
/* if we received ETX (end-of-text), there were no open files, so print only otherwise */
if (! utils_str_equal(doc_list, "\3"))
printf("%s", doc_list);
}
static void socket_get_document_list(gint sock)
{
gchar buf[BUFFER_LENGTH];
gint n_read;
if (sock < 0)
return;
socket_fd_write_all(sock, "doclist\n", 8);
do
{
n_read = socket_fd_read(sock, buf, BUFFER_LENGTH);
/* if we received ETX (end-of-text), there is nothing else to read, so cut that
* byte not to output it and to be sure not to validate the loop condition */
if (n_read > 0 && buf[n_read - 1] == '\3')
n_read--;
if (n_read > 0)
fwrite(buf, 1, n_read, stdout);
}
while (n_read >= BUFFER_LENGTH);
}
gboolean socket_lock_input_cb(GIOChannel *source, GIOCondition condition, gpointer data)
{
gint fd, sock;
gchar buf[BUFFER_LENGTH];
gchar *command = NULL;
struct sockaddr_in caddr;
socklen_t caddr_len = sizeof(caddr);
GtkWidget *window = data;
gboolean popup = FALSE;
fd = g_io_channel_unix_get_fd(source);
sock = accept(fd, (struct sockaddr *)&caddr, &caddr_len);
/* first get the command */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1)
{
command = g_strdup(buf);
geany_debug("Received IPC command from remote instance: %s", g_strstrip(command));
g_free(command);
if (strncmp(buf, "open", 4) == 0)
{
cl_options.readonly = strncmp(buf+4, "ro", 2) == 0; /* open in readonly? */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
gsize buf_len = strlen(buf);
/* remove trailing newline */
if (buf_len > 0 && buf[buf_len - 1] == '\n')
buf[buf_len - 1] = '\0';
handle_input_filename(buf);
}
popup = TRUE;
}
else if (strncmp(buf, "doclist", 7) == 0)
{
gchar *doc_list = build_document_list();
if (!EMPTY(doc_list))
socket_fd_write_all(sock, doc_list, strlen(doc_list));
/* send ETX (end-of-text) so reader knows to stop reading */
socket_fd_write_all(sock, "\3", 1);
g_free(doc_list);
}
else if (strncmp(buf, "line", 4) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_line = atoi(buf);
}
}
else if (strncmp(buf, "column", 6) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_column = atoi(buf);
}
}
#ifdef G_OS_WIN32
else if (strncmp(buf, "window", 6) == 0)
{
# if GTK_CHECK_VERSION(3, 0, 0)
HWND hwnd = (HWND) gdk_win32_window_get_handle(gtk_widget_get_window(window));
# else
HWND hwnd = (HWND) gdk_win32_drawable_get_handle(
GDK_DRAWABLE(gtk_widget_get_window(window)));
# endif
socket_fd_write(sock, (gchar *)&hwnd, sizeof(hwnd));
}
#endif
}
if (popup)
{
#ifdef GDK_WINDOWING_X11
GdkWindow *x11_window = gtk_widget_get_window(window);
/* Set the proper interaction time on the window. This seems necessary to make
* gtk_window_present() really bring the main window into the foreground on some
* window managers like Gnome's metacity.
* Code taken from Gedit. */
# if GTK_CHECK_VERSION(3, 0, 0)
if (GDK_IS_X11_WINDOW(x11_window))
# endif
{
gdk_x11_window_set_user_time(x11_window, gdk_x11_get_server_time(x11_window));
}
#endif
gtk_window_present(GTK_WINDOW(window));
#ifdef G_OS_WIN32
gdk_window_show(gtk_widget_get_window(window));
#endif
}
socket_fd_close(sock);
return TRUE;
}
/* (Unix domain) socket support to replace the old FIFO code
* (taken from Sylpheed, thanks)
* Returns the created socket, -1 if an error occurred or -2 if another socket exists and files
* were sent to it. */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
#ifdef G_OS_WIN32
HANDLE hmutex;
HWND hwnd;
socket_init_win32();
hmutex = CreateMutexA(NULL, FALSE, "Geany");
if (! hmutex)
{
geany_debug("cannot create Mutex\n");
return -1;
}
if (GetLastError() != ERROR_ALREADY_EXISTS)
{
/* To support multiple instances with different configuration directories (as we do on
* non-Windows systems) we would need to use different port number s but it might be
* difficult to get a port number which is unique for a configuration directory (path)
* and which is unused. This port number has to be guessed by the first and new instance
* and the only data is the configuration directory path.
* For now we use one port number, that is we support only one instance at all. */
sock = socket_fd_open_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
return sock;
}
sock = socket_fd_connect_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
#else
gchar *display_name = NULL;
const gchar *hostname = g_get_host_name();
GdkDisplay *display = gdk_display_get_default();
gchar *p;
/* On OS X with quartz backend gdk_display_get_name() returns hostname
* using [NSHost currentHost] (it could return more or less whatever string
* as display name is a X11 specific thing). This call can lead to network
* query and block for several seconds so better skip it. */
#ifndef GDK_WINDOWING_QUARTZ
if (display != NULL)
display_name = g_strdup(gdk_display_get_name(display));
#endif
if (display_name == NULL)
display_name = g_strdup("NODISPLAY");
/* these lines are taken from dcopc.c in kdelibs */
if ((p = strrchr(display_name, '.')) > strrchr(display_name, ':') && p != NULL)
*p = '\0';
/* remove characters that may not be acceptable in a filename */
for (p = display_name; *p; p++)
{
if (*p == ':' || *p == '/')
*p = '_';
}
if (socket_info.file_name == NULL)
socket_info.file_name = g_strdup_printf("%s%cgeany_socket_%s_%s",
app->configdir, G_DIR_SEPARATOR, hostname, display_name);
g_free(display_name);
/* check whether the real user id is the same as this of the socket file */
check_socket_permissions();
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
remove_socket_link_full(); /* deletes the socket file and the symlink */
return socket_fd_open_unix(socket_info.file_name);
}
#endif
/* remote command mode, here we have another running instance and want to use it */
/* now we send the command line args */
if (argc > 1)
{
#ifdef G_OS_WIN32
/* first we send a request to retrieve the window handle and focus the window */
socket_fd_write_all(sock, "window\n", 7);
if (socket_fd_read(sock, (gchar *)&hwnd, sizeof(hwnd)) == sizeof(hwnd))
SetForegroundWindow(hwnd);
#endif
send_open_command(sock, argc, argv);
}
if (cl_options.list_documents)
{
socket_get_document_list(sock);
}
socket_fd_close(sock);
return -2;
}
gboolean socket_lock_input_cb(GIOChannel *source, GIOCondition condition, gpointer data)
{
gint fd, sock;
gchar buf[BUFFER_LENGTH];
struct sockaddr_in caddr;
socklen_t caddr_len = sizeof(caddr);
GtkWidget *window = data;
gboolean popup = FALSE;
fd = g_io_channel_unix_get_fd(source);
sock = accept(fd, (struct sockaddr *)&caddr, &caddr_len);
/* first get the command */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1)
{
if (strncmp(buf, "open", 4) == 0)
{
cl_options.readonly = strncmp(buf+4, "ro", 2) == 0; /* open in readonly? */
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
handle_input_filename(g_strstrip(buf));
}
popup = TRUE;
}
else if (strncmp(buf, "doclist", 7) == 0)
{
gchar *doc_list = build_document_list();
if (NZV(doc_list))
socket_fd_write_all(sock, doc_list, strlen(doc_list));
else
/* send ETX (end-of-text) in case we have no open files, we must send anything
* otherwise the client would hang on reading */
socket_fd_write_all(sock, "\3", 1);
g_free(doc_list);
}
else if (strncmp(buf, "line", 4) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_line = atoi(buf);
}
}
else if (strncmp(buf, "column", 6) == 0)
{
while (socket_fd_gets(sock, buf, sizeof(buf)) != -1 && *buf != '.')
{
g_strstrip(buf); /* remove \n char */
/* on any error we get 0 which should be safe enough as fallback */
cl_options.goto_column = atoi(buf);
}
}
#ifdef G_OS_WIN32
else if (strncmp(buf, "window", 6) == 0)
{
HWND hwnd = (HWND) gdk_win32_drawable_get_handle(
GDK_DRAWABLE(gtk_widget_get_window(window)));
socket_fd_write(sock, (gchar *)&hwnd, sizeof(hwnd));
}
#endif
}
if (popup)
{
#ifdef GDK_WINDOWING_X11
/* Set the proper interaction time on the window. This seems necessary to make
* gtk_window_present() really bring the main window into the foreground on some
* window managers like Gnome's metacity.
* Code taken from Gedit. */
gdk_x11_window_set_user_time(gtk_widget_get_window(window),
gdk_x11_get_server_time(gtk_widget_get_window(window)));
#endif
gtk_window_present(GTK_WINDOW(window));
#ifdef G_OS_WIN32
gdk_window_show(gtk_widget_get_window(window));
#endif
}
socket_fd_close(sock);
return TRUE;
}
/* (Unix domain) socket support to replace the old FIFO code
* (taken from Sylpheed, thanks)
* Returns the created socket, -1 if an error occurred or -2 if another socket exists and files
* were sent to it. */
gint socket_init(gint argc, gchar **argv)
{
gint sock;
#ifdef G_OS_WIN32
HANDLE hmutex;
HWND hwnd;
socket_init_win32();
hmutex = CreateMutexA(NULL, FALSE, "Geany");
if (! hmutex)
{
geany_debug("cannot create Mutex\n");
return -1;
}
if (GetLastError() != ERROR_ALREADY_EXISTS)
{
/* To support multiple instances with different configuration directories (as we do on
* non-Windows systems) we would need to use different port number s but it might be
* difficult to get a port number which is unique for a configuration directory (path)
* and which is unused. This port number has to be guessed by the first and new instance
* and the only data is the configuration directory path.
* For now we use one port number, that is we support only one instance at all. */
sock = socket_fd_open_inet(REMOTE_CMD_PORT);
if (sock < 0)
return 0;
return sock;
}
sock = socket_fd_connect_inet(REMOTE_CMD_PORT);
if (sock < 0)
return -1;
#else
gchar *display_name = gdk_get_display();
gchar *hostname = utils_get_hostname();
gchar *p;
if (display_name == NULL)
display_name = g_strdup("NODISPLAY");
/* these lines are taken from dcopc.c in kdelibs */
if ((p = strrchr(display_name, '.')) > strrchr(display_name, ':') && p != NULL)
*p = '\0';
while ((p = strchr(display_name, ':')) != NULL)
*p = '_';
if (socket_info.file_name == NULL)
socket_info.file_name = g_strdup_printf("%s%cgeany_socket_%s_%s",
app->configdir, G_DIR_SEPARATOR, hostname, display_name);
g_free(display_name);
g_free(hostname);
/* check whether the real user id is the same as this of the socket file */
check_socket_permissions();
sock = socket_fd_connect_unix(socket_info.file_name);
if (sock < 0)
{
remove_socket_link_full(); /* deletes the socket file and the symlink */
return socket_fd_open_unix(socket_info.file_name);
}
#endif
/* remote command mode, here we have another running instance and want to use it */
#ifdef G_OS_WIN32
/* first we send a request to retrieve the window handle and focus the window */
socket_fd_write_all(sock, "window\n", 7);
if (socket_fd_read(sock, (gchar *)&hwnd, sizeof(hwnd)) == sizeof(hwnd))
SetForegroundWindow(hwnd);
#endif
/* now we send the command line args */
if (argc > 1)
{
send_open_command(sock, argc, argv);
}
if (cl_options.list_documents)
{
socket_get_document_list(sock);
}
socket_fd_close(sock);
return -2;
}
