+++ /dev/null
-/*
- * Geeqie
- * (C) 2004 John Ellis
- * Copyright (C) 2008 - 2009 The Geeqie Team
- *
- * Author: John Ellis
- *
- * This software is released under the GNU General Public License (GNU GPL).
- * Please read the included file COPYING for more information.
- * This software comes with no warranty of any kind, use at your own risk!
- */
-
-
-#include "main.h"
-#include "remote.h"
-
-#include "collect.h"
-#include "filedata.h"
-#include "img-view.h"
-#include "layout.h"
-#include "layout_image.h"
-#include "misc.h"
-#include "slideshow.h"
-#include "ui_fileops.h"
-#include "rcfile.h"
-
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <signal.h>
-#include <errno.h>
-
-
-#define SERVER_MAX_CLIENTS 8
-
-#define REMOTE_SERVER_BACKLOG 4
-
-
-#ifndef UNIX_PATH_MAX
-#define UNIX_PATH_MAX 108
-#endif
-
-
-static RemoteConnection *remote_client_open(const gchar *path);
-static gint remote_client_send(RemoteConnection *rc, const gchar *text);
-
-
-typedef struct _RemoteClient RemoteClient;
-struct _RemoteClient {
- gint fd;
- gint channel_id;
- RemoteConnection *rc;
-};
-
-typedef struct _RemoteData RemoteData;
-struct _RemoteData {
- CollectionData *command_collection;
-};
-
-
-static gboolean remote_server_client_cb(GIOChannel *source, GIOCondition condition, gpointer data)
-{
- RemoteClient *client = data;
- RemoteConnection *rc;
- GIOStatus status = G_IO_STATUS_NORMAL;
-
- rc = client->rc;
-
- if (condition & G_IO_IN)
- {
- GList *queue = NULL;
- GList *work;
- gchar *buffer = NULL;
- GError *error = NULL;
- gsize termpos;
-
- while ((status = g_io_channel_read_line(source, &buffer, NULL, &termpos, &error)) == G_IO_STATUS_NORMAL)
- {
- if (buffer)
- {
- buffer[termpos] = '\0';
-
- if (strlen(buffer) > 0)
- {
- queue = g_list_append(queue, buffer);
- }
- else
- {
- g_free(buffer);
- }
-
- buffer = NULL;
- }
- }
-
- if (error)
- {
- log_printf("error reading socket: %s\n", error->message);
- g_error_free(error);
- }
-
- work = queue;
- while (work)
- {
- gchar *command = work->data;
- work = work->next;
-
- if (rc->read_func) rc->read_func(rc, command, rc->read_data);
- g_free(command);
- }
-
- g_list_free(queue);
- }
-
- if (condition & G_IO_HUP || status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR)
- {
- rc->clients = g_list_remove(rc->clients, client);
-
- DEBUG_1("HUP detected, closing client.");
- DEBUG_1("client count %d", g_list_length(rc->clients));
-
- g_source_remove(client->channel_id);
- close(client->fd);
- g_free(client);
- }
-
- return TRUE;
-}
-
-static void remote_server_client_add(RemoteConnection *rc, gint fd)
-{
- RemoteClient *client;
- GIOChannel *channel;
-
- if (g_list_length(rc->clients) > SERVER_MAX_CLIENTS)
- {
- log_printf("maximum remote clients of %d exceeded, closing connection\n", SERVER_MAX_CLIENTS);
- close(fd);
- return;
- }
-
- client = g_new0(RemoteClient, 1);
- client->rc = rc;
- client->fd = fd;
-
- channel = g_io_channel_unix_new(fd);
- client->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN | G_IO_HUP,
- remote_server_client_cb, client, NULL);
- g_io_channel_unref(channel);
-
- rc->clients = g_list_append(rc->clients, client);
- DEBUG_1("client count %d", g_list_length(rc->clients));
-}
-
-static void remote_server_clients_close(RemoteConnection *rc)
-{
- while (rc->clients)
- {
- RemoteClient *client = rc->clients->data;
-
- rc->clients = g_list_remove(rc->clients, client);
-
- g_source_remove(client->channel_id);
- close(client->fd);
- g_free(client);
- }
-}
-
-static gboolean remote_server_read_cb(GIOChannel *source, GIOCondition condition, gpointer data)
-{
- RemoteConnection *rc = data;
- gint fd;
- guint alen;
-
- fd = accept(rc->fd, NULL, &alen);
- if (fd == -1)
- {
- log_printf("error accepting socket: %s\n", strerror(errno));
- return TRUE;
- }
-
- remote_server_client_add(rc, fd);
-
- return TRUE;
-}
-
-static gboolean remote_server_exists(const gchar *path)
-{
- RemoteConnection *rc;
-
- /* verify server up */
- rc = remote_client_open(path);
- remote_close(rc);
-
- if (rc) return TRUE;
-
- /* unable to connect, remove socket file to free up address */
- unlink(path);
- return FALSE;
-}
-
-static RemoteConnection *remote_server_open(const gchar *path)
-{
- RemoteConnection *rc;
- struct sockaddr_un addr;
- gint sun_path_len;
- gint fd;
- GIOChannel *channel;
-
- if (remote_server_exists(path))
- {
- log_printf("Address already in use: %s\n", path);
- return NULL;
- }
-
- fd = socket(PF_UNIX, SOCK_STREAM, 0);
- if (fd == -1) return NULL;
-
- addr.sun_family = AF_UNIX;
- sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
- strncpy(addr.sun_path, path, sun_path_len);
- if (bind(fd, &addr, sizeof(addr)) == -1 ||
- listen(fd, REMOTE_SERVER_BACKLOG) == -1)
- {
- log_printf("error subscribing to socket: %s\n", strerror(errno));
- close(fd);
- return NULL;
- }
-
- rc = g_new0(RemoteConnection, 1);
-
- rc->server = TRUE;
- rc->fd = fd;
- rc->path = g_strdup(path);
-
- channel = g_io_channel_unix_new(rc->fd);
- g_io_channel_set_flags(channel, G_IO_FLAG_NONBLOCK, NULL);
-
- rc->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN,
- remote_server_read_cb, rc, NULL);
- g_io_channel_unref(channel);
-
- return rc;
-}
-
-static void remote_server_subscribe(RemoteConnection *rc, RemoteReadFunc *func, gpointer data)
-{
- if (!rc || !rc->server) return;
-
- rc->read_func = func;
- rc->read_data = data;
-}
-
-
-static RemoteConnection *remote_client_open(const gchar *path)
-{
- RemoteConnection *rc;
- struct stat st;
- struct sockaddr_un addr;
- gint sun_path_len;
- gint fd;
-
- if (stat(path, &st) != 0 || !S_ISSOCK(st.st_mode)) return NULL;
-
- fd = socket(PF_UNIX, SOCK_STREAM, 0);
- if (fd == -1) return NULL;
-
- addr.sun_family = AF_UNIX;
- sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
- strncpy(addr.sun_path, path, sun_path_len);
- if (connect(fd, &addr, sizeof(addr)) == -1)
- {
- DEBUG_1("error connecting to socket: %s", strerror(errno));
- close(fd);
- return NULL;
- }
-
- rc = g_new0(RemoteConnection, 1);
- rc->server = FALSE;
- rc->fd = fd;
- rc->path = g_strdup(path);
-
- /* this might fix the freezes on freebsd, solaris, etc. - completely untested */
- remote_client_send(rc, "\n");
-
- return rc;
-}
-
-static sig_atomic_t sigpipe_occured = FALSE;
-
-static void sighandler_sigpipe(gint sig)
-{
- sigpipe_occured = TRUE;
-}
-
-static gboolean remote_client_send(RemoteConnection *rc, const gchar *text)
-{
- struct sigaction new_action, old_action;
- gboolean ret = FALSE;
-
- if (!rc || rc->server) return FALSE;
- if (!text) return TRUE;
-
- sigpipe_occured = FALSE;
-
- new_action.sa_handler = sighandler_sigpipe;
- sigemptyset(&new_action.sa_mask);
- new_action.sa_flags = 0;
-
- /* setup our signal handler */
- sigaction(SIGPIPE, &new_action, &old_action);
-
- if (write(rc->fd, text, strlen(text)) == -1 ||
- write(rc->fd, "\n", 1) == -1)
- {
- if (sigpipe_occured)
- {
- log_printf("SIGPIPE writing to socket: %s\n", rc->path);
- }
- else
- {
- log_printf("error writing to socket: %s\n", strerror(errno));
- }
- ret = FALSE;;
- }
- else
- {
- ret = TRUE;
- }
-
- /* restore the original signal handler */
- sigaction(SIGPIPE, &old_action, NULL);
-
- return ret;
-}
-
-void remote_close(RemoteConnection *rc)
-{
- if (!rc) return;
-
- if (rc->server)
- {
- remote_server_clients_close(rc);
-
- g_source_remove(rc->channel_id);
- unlink(rc->path);
- }
-
- if (rc->read_data)
- g_free(rc->read_data);
-
- close(rc->fd);
-
- g_free(rc->path);
- g_free(rc);
-}
-
-/*
- *-----------------------------------------------------------------------------
- * remote functions
- *-----------------------------------------------------------------------------
- */
-
-static void gr_image_next(const gchar *text, gpointer data)
-{
- layout_image_next(NULL);
-}
-
-static void gr_image_prev(const gchar *text, gpointer data)
-{
- layout_image_prev(NULL);
-}
-
-static void gr_image_first(const gchar *text, gpointer data)
-{
- layout_image_first(NULL);
-}
-
-static void gr_image_last(const gchar *text, gpointer data)
-{
- layout_image_last(NULL);
-}
-
-static void gr_fullscreen_toggle(const gchar *text, gpointer data)
-{
- layout_image_full_screen_toggle(NULL);
-}
-
-static void gr_fullscreen_start(const gchar *text, gpointer data)
-{
- layout_image_full_screen_start(NULL);
-}
-
-static void gr_fullscreen_stop(const gchar *text, gpointer data)
-{
- layout_image_full_screen_stop(NULL);
-}
-
-static void gr_slideshow_start_rec(const gchar *text, gpointer data)
-{
- GList *list;
- FileData *dir_fd = file_data_new_simple(text);
- list = filelist_recursive(dir_fd);
- file_data_unref(dir_fd);
- if (!list) return;
-//printf("length: %d\n", g_list_length(list));
- layout_image_slideshow_stop(NULL);
- layout_image_slideshow_start_from_list(NULL, list);
-}
-
-static void gr_slideshow_toggle(const gchar *text, gpointer data)
-{
- layout_image_slideshow_toggle(NULL);
-}
-
-static void gr_slideshow_start(const gchar *text, gpointer data)
-{
- layout_image_slideshow_start(NULL);
-}
-
-static void gr_slideshow_stop(const gchar *text, gpointer data)
-{
- layout_image_slideshow_stop(NULL);
-}
-
-static void gr_slideshow_delay(const gchar *text, gpointer data)
-{
- gdouble n;
-
- n = g_ascii_strtod(text, NULL);
- if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS)
- {
- printf_term("Remote slideshow delay out of range (%.1f to %.1f)\n",
- SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
- return;
- }
- options->slideshow.delay = (gint)(n * 10.0 + 0.01);
-}
-
-static void gr_tools_show(const gchar *text, gpointer data)
-{
- gboolean popped;
- gboolean hidden;
-
- if (layout_tools_float_get(NULL, &popped, &hidden) && hidden)
- {
- layout_tools_float_set(NULL, popped, FALSE);
- }
-}
-
-static void gr_tools_hide(const gchar *text, gpointer data)
-{
- gboolean popped;
- gboolean hidden;
-
- if (layout_tools_float_get(NULL, &popped, &hidden) && !hidden)
- {
- layout_tools_float_set(NULL, popped, TRUE);
- }
-}
-
-static gboolean gr_quit_idle_cb(gpointer data)
-{
- exit_program();
-
- return FALSE;
-}
-
-static void gr_quit(const gchar *text, gpointer data)
-{
- /* schedule exit when idle, if done from within a
- * remote handler remote_close will crash
- */
- g_idle_add(gr_quit_idle_cb, NULL);
-}
-
-static void gr_file_load(const gchar *text, gpointer data)
-{
- gchar *filename = expand_tilde(text);
-
- if (isfile(filename))
- {
- if (file_extension_match(filename, GQ_COLLECTION_EXT))
- {
- collection_window_new(filename);
- }
- else
- {
- layout_set_path(NULL, filename);
- }
- }
- else if (isdir(filename))
- {
- layout_set_path(NULL, filename);
- }
- else
- {
- log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
- }
-
- g_free(filename);
-}
-
-static void gr_config_load(const gchar *text, gpointer data)
-{
- gchar *filename = expand_tilde(text);
-
- if (isfile(filename))
- {
- load_options_from(filename, options, FALSE);
- }
- else
- {
- log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
- }
-
- g_free(filename);
-}
-
-static void gr_file_view(const gchar *text, gpointer data)
-{
- gchar *filename = expand_tilde(text);
-
- view_window_new(file_data_new_simple(filename));
- g_free(filename);
-}
-
-static void gr_list_clear(const gchar *text, gpointer data)
-{
- RemoteData *remote_data = data;
-
- if (remote_data->command_collection)
- {
- collection_unref(remote_data->command_collection);
- remote_data->command_collection = NULL;
- }
-}
-
-static void gr_list_add(const gchar *text, gpointer data)
-{
- RemoteData *remote_data = data;
- gboolean new = TRUE;
-
- if (!remote_data->command_collection)
- {
- CollectionData *cd;
-
- cd = collection_new("");
-
- g_free(cd->path);
- cd->path = NULL;
- g_free(cd->name);
- cd->name = g_strdup(_("Command line"));
-
- remote_data->command_collection = cd;
- }
- else
- {
- new = (!collection_get_first(remote_data->command_collection));
- }
-
- if (collection_add(remote_data->command_collection, file_data_new_simple(text), FALSE) && new)
- {
- layout_image_set_collection(NULL, remote_data->command_collection,
- collection_get_first(remote_data->command_collection));
- }
-}
-
-static void gr_raise(const gchar *text, gpointer data)
-{
- LayoutWindow *lw = NULL;
-
- if (layout_valid(&lw))
- {
- gtk_window_present(GTK_WINDOW(lw->window));
- }
-}
-
-typedef struct _RemoteCommandEntry RemoteCommandEntry;
-struct _RemoteCommandEntry {
- gchar *opt_s;
- gchar *opt_l;
- void (*func)(const gchar *text, gpointer data);
- gboolean needs_extra;
- gboolean prefer_command_line;
- gchar *description;
-};
-
-static RemoteCommandEntry remote_commands[] = {
- /* short, long callback, extra, prefer,description */
- { "-n", "--next", gr_image_next, FALSE, FALSE, N_("next image") },
- { "-b", "--back", gr_image_prev, FALSE, FALSE, N_("previous image") },
- { NULL, "--first", gr_image_first, FALSE, FALSE, N_("first image") },
- { NULL, "--last", gr_image_last, FALSE, FALSE, N_("last image") },
- { "-f", "--fullscreen", gr_fullscreen_toggle, FALSE, TRUE, N_("toggle full screen") },
- { "-fs","--fullscreen-start", gr_fullscreen_start, FALSE, FALSE, N_("start full screen") },
- { "-fS","--fullscreen-stop", gr_fullscreen_stop, FALSE, FALSE, N_("stop full screen") },
- { "-s", "--slideshow", gr_slideshow_toggle, FALSE, TRUE, N_("toggle slide show") },
- { "-ss","--slideshow-start", gr_slideshow_start, FALSE, FALSE, N_("start slide show") },
- { "-sS","--slideshow-stop", gr_slideshow_stop, FALSE, FALSE, N_("stop slide show") },
- { NULL, "--slideshow-recurse:", gr_slideshow_start_rec, TRUE, FALSE, N_("start recursive slide show") },
- { "-d", "--delay=", gr_slideshow_delay, TRUE, FALSE, N_("set slide show delay in seconds") },
- { "+t", "--tools-show", gr_tools_show, FALSE, TRUE, N_("show tools") },
- { "-t", "--tools-hide", gr_tools_hide, FALSE, TRUE, N_("hide tools") },
- { "-q", "--quit", gr_quit, FALSE, FALSE, N_("quit") },
- { NULL, "--config-load:", gr_config_load, TRUE, FALSE, N_("load config file") },
- { NULL, "file:", gr_file_load, TRUE, FALSE, N_("open file") },
- { NULL, "view:", gr_file_view, TRUE, FALSE, N_("open file in new window") },
- { NULL, "--list-clear", gr_list_clear, FALSE, FALSE, NULL },
- { NULL, "--list-add:", gr_list_add, TRUE, FALSE, NULL },
- { NULL, "raise", gr_raise, FALSE, FALSE, NULL },
- { NULL, NULL, NULL, FALSE, FALSE, NULL }
-};
-
-static RemoteCommandEntry *remote_command_find(const gchar *text, const gchar **offset)
-{
- gboolean match = FALSE;
- gint i;
-
- i = 0;
- while (!match && remote_commands[i].func != NULL)
- {
- if (remote_commands[i].needs_extra)
- {
- if (remote_commands[i].opt_s &&
- strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
- {
- if (offset) *offset = text + strlen(remote_commands[i].opt_s);
- return &remote_commands[i];
- }
- else if (remote_commands[i].opt_l &&
- strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
- {
- if (offset) *offset = text + strlen(remote_commands[i].opt_l);
- return &remote_commands[i];
- }
- }
- else
- {
- if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
- (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
- {
- if (offset) *offset = text;
- return &remote_commands[i];
- }
- }
-
- i++;
- }
-
- return NULL;
-}
-
-static void remote_cb(RemoteConnection *rc, const gchar *text, gpointer data)
-{
- RemoteCommandEntry *entry;
- const gchar *offset;
-
- entry = remote_command_find(text, &offset);
- if (entry && entry->func)
- {
- entry->func(offset, data);
- }
- else
- {
- log_printf("unknown remote command:%s\n", text);
- }
-}
-
-void remote_help(void)
-{
- gint i;
-
- print_term(_("Remote command list:\n"));
-
- i = 0;
- while (remote_commands[i].func != NULL)
- {
- if (remote_commands[i].description)
- {
- printf_term(" %-3s%s %-20s %s\n",
- (remote_commands[i].opt_s) ? remote_commands[i].opt_s : "",
- (remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
- (remote_commands[i].opt_l) ? remote_commands[i].opt_l : "",
- _(remote_commands[i].description));
- }
- i++;
- }
-}
-
-GList *remote_build_list(GList *list, gint argc, gchar *argv[], GList **errors)
-{
- gint i;
-
- i = 1;
- while (i < argc)
- {
- RemoteCommandEntry *entry;
-
- entry = remote_command_find(argv[i], NULL);
- if (entry)
- {
- list = g_list_append(list, argv[i]);
- }
- else if (errors)
- {
- *errors = g_list_append(*errors, argv[i]);
- }
- i++;
- }
-
- return list;
-}
-
-void remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
- GList *cmd_list, GList *collection_list)
-{
- RemoteConnection *rc;
- gboolean started = FALSE;
- gchar *buf;
-
- buf = g_build_filename(get_rc_dir(), ".command", NULL);
- rc = remote_client_open(buf);
- if (!rc)
- {
- GString *command;
- GList *work;
- gint retry_count = 12;
- gboolean blank = FALSE;
-
- printf_term(_("Remote %s not running, starting..."), GQ_APPNAME);
-
- command = g_string_new(arg_exec);
-
- work = remote_list;
- while (work)
- {
- gchar *text;
- RemoteCommandEntry *entry;
-
- text = work->data;
- work = work->next;
-
- entry = remote_command_find(text, NULL);
- if (entry)
- {
- if (entry->prefer_command_line)
- {
- remote_list = g_list_remove(remote_list, text);
- g_string_append(command, " ");
- g_string_append(command, text);
- }
- if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
- {
- blank = TRUE;
- }
- }
- }
-
- if (blank || cmd_list || path) g_string_append(command, " --blank");
- if (get_debug_level()) g_string_append(command, " --debug");
-
- g_string_append(command, " &");
- runcmd(command->str);
- g_string_free(command, TRUE);
-
- while (!rc && retry_count > 0)
- {
- usleep((retry_count > 10) ? 500000 : 1000000);
- rc = remote_client_open(buf);
- if (!rc) print_term(".");
- retry_count--;
- }
-
- print_term("\n");
-
- started = TRUE;
- }
- g_free(buf);
-
- if (rc)
- {
- GList *work;
- const gchar *prefix;
- gboolean use_path = TRUE;
- gboolean sent = FALSE;
-
- work = remote_list;
- while (work)
- {
- gchar *text;
- RemoteCommandEntry *entry;
-
- text = work->data;
- work = work->next;
-
- entry = remote_command_find(text, NULL);
- if (entry &&
- entry->opt_l &&
- strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;
-
- remote_client_send(rc, text);
-
- sent = TRUE;
- }
-
- if (cmd_list && cmd_list->next)
- {
- prefix = "--list-add:";
- remote_client_send(rc, "--list-clear");
- }
- else
- {
- prefix = "file:";
- }
-
- work = cmd_list;
- while (work)
- {
- FileData *fd;
- gchar *text;
-
- fd = work->data;
- work = work->next;
-
- text = g_strconcat(prefix, fd->path, NULL);
- remote_client_send(rc, text);
- g_free(text);
-
- sent = TRUE;
- }
-
- if (path && !cmd_list && use_path)
- {
- gchar *text;
-
- text = g_strdup_printf("file:%s", path);
- remote_client_send(rc, text);
- g_free(text);
-
- sent = TRUE;
- }
-
- work = collection_list;
- while (work)
- {
- const gchar *name;
- gchar *text;
-
- name = work->data;
- work = work->next;
-
- text = g_strdup_printf("file:%s", name);
- remote_client_send(rc, text);
- g_free(text);
-
- sent = TRUE;
- }
-
- if (!started && !sent)
- {
- remote_client_send(rc, "raise");
- }
- }
- else
- {
- print_term(_("Remote not available\n"));
- }
-
- _exit(0);
-}
-
-RemoteConnection *remote_server_init(gchar *path, CollectionData *command_collection)
-{
- RemoteConnection *remote_connection = remote_server_open(path);
- RemoteData *remote_data = g_new(RemoteData, 1);
-
- remote_data->command_collection = command_collection;
-
- remote_server_subscribe(remote_connection, remote_cb, remote_data);
- return remote_connection;
-}
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff