src/remote.c

   1 /*
   2  * Copyright (C) 2004 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #include "remote.h"
  24
  25 #include "cache_maint.h"
  26 #include "collect.h"
  27 #include "filedata.h"
  28 #include "image.h"
  29 #include "img-view.h"
  30 #include "layout.h"
  31 #include "layout_image.h"
  32 #include "misc.h"
  33 #include "slideshow.h"
  34 #include "ui_fileops.h"
  35 #include "rcfile.h"
  36
  37 #include <sys/socket.h>
  38 #include <sys/un.h>
  39 #include <signal.h>
  40 #include <errno.h>
  41
  42
  43 #define SERVER_MAX_CLIENTS 8
  44
  45 #define REMOTE_SERVER_BACKLOG 4
  46
  47
  48 #ifndef UNIX_PATH_MAX
  49 #define UNIX_PATH_MAX 108
  50 #endif
  51
  52
  53 static RemoteConnection *remote_client_open(const gchar *path);
  54 static gint remote_client_send(RemoteConnection *rc, const gchar *text);
  55 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data);
  56
  57
  58 typedef struct _RemoteClient RemoteClient;
  59 struct _RemoteClient {
  60         gint fd;
  61         guint channel_id; /* event source id */
  62         RemoteConnection *rc;
  63 };
  64
  65 typedef struct _RemoteData RemoteData;
  66 struct _RemoteData {
  67         CollectionData *command_collection;
  68 };
  69
  70
  71 static gboolean remote_server_client_cb(GIOChannel *source, GIOCondition condition, gpointer data)
  72 {
  73         RemoteClient *client = data;
  74         RemoteConnection *rc;
  75         GIOStatus status = G_IO_STATUS_NORMAL;
  76
  77         rc = client->rc;
  78
  79         if (condition & G_IO_IN)
  80                 {
  81                 gchar *buffer = NULL;
  82                 GError *error = NULL;
  83                 gsize termpos;
  84
  85                 while ((status = g_io_channel_read_line(source, &buffer, NULL, &termpos, &error)) == G_IO_STATUS_NORMAL)
  86                         {
  87                         if (buffer)
  88                                 {
  89                                 buffer[termpos] = '\0';
  90
  91                                 if (strlen(buffer) > 0)
  92                                         {
  93                                         if (rc->read_func) rc->read_func(rc, buffer, source, rc->read_data);
  94                                         g_io_channel_write_chars(source, "\n", -1, NULL, NULL); /* empty line finishes the command */
  95                                         g_io_channel_flush(source, NULL);
  96                                         }
  97                                 g_free(buffer);
  98
  99                                 buffer = NULL;
 100                                 }
 101                         }
 102
 103                 if (error)
 104                         {
 105                         log_printf("error reading socket: %s\n", error->message);
 106                         g_error_free(error);
 107                         }
 108                 }
 109
 110         if (condition & G_IO_HUP || status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR)
 111                 {
 112                 rc->clients = g_list_remove(rc->clients, client);
 113
 114                 DEBUG_1("HUP detected, closing client.");
 115                 DEBUG_1("client count %d", g_list_length(rc->clients));
 116
 117                 g_source_remove(client->channel_id);
 118                 close(client->fd);
 119                 g_free(client);
 120                 }
 121
 122         return TRUE;
 123 }
 124
 125 static void remote_server_client_add(RemoteConnection *rc, gint fd)
 126 {
 127         RemoteClient *client;
 128         GIOChannel *channel;
 129
 130         if (g_list_length(rc->clients) > SERVER_MAX_CLIENTS)
 131                 {
 132                 log_printf("maximum remote clients of %d exceeded, closing connection\n", SERVER_MAX_CLIENTS);
 133                 close(fd);
 134                 return;
 135                 }
 136
 137         client = g_new0(RemoteClient, 1);
 138         client->rc = rc;
 139         client->fd = fd;
 140
 141         channel = g_io_channel_unix_new(fd);
 142         client->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN | G_IO_HUP,
 143                                                  remote_server_client_cb, client, NULL);
 144         g_io_channel_unref(channel);
 145
 146         rc->clients = g_list_append(rc->clients, client);
 147         DEBUG_1("client count %d", g_list_length(rc->clients));
 148 }
 149
 150 static void remote_server_clients_close(RemoteConnection *rc)
 151 {
 152         while (rc->clients)
 153                 {
 154                 RemoteClient *client = rc->clients->data;
 155
 156                 rc->clients = g_list_remove(rc->clients, client);
 157
 158                 g_source_remove(client->channel_id);
 159                 close(client->fd);
 160                 g_free(client);
 161                 }
 162 }
 163
 164 static gboolean remote_server_read_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 165 {
 166         RemoteConnection *rc = data;
 167         gint fd;
 168         guint alen;
 169
 170         fd = accept(rc->fd, NULL, &alen);
 171         if (fd == -1)
 172                 {
 173                 log_printf("error accepting socket: %s\n", strerror(errno));
 174                 return TRUE;
 175                 }
 176
 177         remote_server_client_add(rc, fd);
 178
 179         return TRUE;
 180 }
 181
 182 static gboolean remote_server_exists(const gchar *path)
 183 {
 184         RemoteConnection *rc;
 185
 186         /* verify server up */
 187         rc = remote_client_open(path);
 188         remote_close(rc);
 189
 190         if (rc) return TRUE;
 191
 192         /* unable to connect, remove socket file to free up address */
 193         unlink(path);
 194         return FALSE;
 195 }
 196
 197 static RemoteConnection *remote_server_open(const gchar *path)
 198 {
 199         RemoteConnection *rc;
 200         struct sockaddr_un addr;
 201         gint sun_path_len;
 202         gint fd;
 203         GIOChannel *channel;
 204
 205         if (remote_server_exists(path))
 206                 {
 207                 log_printf("Address already in use: %s\n", path);
 208                 return NULL;
 209                 }
 210
 211         fd = socket(PF_UNIX, SOCK_STREAM, 0);
 212         if (fd == -1) return NULL;
 213
 214         addr.sun_family = AF_UNIX;
 215         sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
 216         strncpy(addr.sun_path, path, sun_path_len);
 217         if (bind(fd, &addr, sizeof(addr)) == -1 ||
 218             listen(fd, REMOTE_SERVER_BACKLOG) == -1)
 219                 {
 220                 log_printf("error subscribing to socket: %s\n", strerror(errno));
 221                 close(fd);
 222                 return NULL;
 223                 }
 224
 225         rc = g_new0(RemoteConnection, 1);
 226
 227         rc->server = TRUE;
 228         rc->fd = fd;
 229         rc->path = g_strdup(path);
 230
 231         channel = g_io_channel_unix_new(rc->fd);
 232         g_io_channel_set_flags(channel, G_IO_FLAG_NONBLOCK, NULL);
 233
 234         rc->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN,
 235                                              remote_server_read_cb, rc, NULL);
 236         g_io_channel_unref(channel);
 237
 238         return rc;
 239 }
 240
 241 static void remote_server_subscribe(RemoteConnection *rc, RemoteReadFunc *func, gpointer data)
 242 {
 243         if (!rc || !rc->server) return;
 244
 245         rc->read_func = func;
 246         rc->read_data = data;
 247 }
 248
 249
 250 static RemoteConnection *remote_client_open(const gchar *path)
 251 {
 252         RemoteConnection *rc;
 253         struct stat st;
 254         struct sockaddr_un addr;
 255         gint sun_path_len;
 256         gint fd;
 257
 258         if (stat(path, &st) != 0 || !S_ISSOCK(st.st_mode)) return NULL;
 259
 260         fd = socket(PF_UNIX, SOCK_STREAM, 0);
 261         if (fd == -1) return NULL;
 262
 263         addr.sun_family = AF_UNIX;
 264         sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
 265         strncpy(addr.sun_path, path, sun_path_len);
 266         if (connect(fd, &addr, sizeof(addr)) == -1)
 267                 {
 268                 DEBUG_1("error connecting to socket: %s", strerror(errno));
 269                 close(fd);
 270                 return NULL;
 271                 }
 272
 273         rc = g_new0(RemoteConnection, 1);
 274         rc->server = FALSE;
 275         rc->fd = fd;
 276         rc->path = g_strdup(path);
 277
 278         return rc;
 279 }
 280
 281 static sig_atomic_t sigpipe_occured = FALSE;
 282
 283 static void sighandler_sigpipe(gint sig)
 284 {
 285         sigpipe_occured = TRUE;
 286 }
 287
 288 static gboolean remote_client_send(RemoteConnection *rc, const gchar *text)
 289 {
 290         struct sigaction new_action, old_action;
 291         gboolean ret = FALSE;
 292         GError *error = NULL;
 293         GIOChannel *channel;
 294
 295         if (!rc || rc->server) return FALSE;
 296         if (!text) return TRUE;
 297
 298         sigpipe_occured = FALSE;
 299
 300         new_action.sa_handler = sighandler_sigpipe;
 301         sigemptyset(&new_action.sa_mask);
 302         new_action.sa_flags = 0;
 303
 304         /* setup our signal handler */
 305         sigaction(SIGPIPE, &new_action, &old_action);
 306
 307         channel = g_io_channel_unix_new(rc->fd);
 308
 309         g_io_channel_write_chars(channel, text, -1, NULL, &error);
 310         g_io_channel_write_chars(channel, "\n", -1, NULL, &error);
 311         g_io_channel_flush(channel, &error);
 312
 313         if (error)
 314                 {
 315                 log_printf("error reading socket: %s\n", error->message);
 316                 g_error_free(error);
 317                 ret = FALSE;;
 318                 }
 319         else
 320                 {
 321                 ret = TRUE;
 322                 }
 323
 324         if (ret)
 325                 {
 326                 gchar *buffer = NULL;
 327                 gsize termpos;
 328                 while (g_io_channel_read_line(channel, &buffer, NULL, &termpos, &error) == G_IO_STATUS_NORMAL)
 329                         {
 330                         if (buffer)
 331                                 {
 332                                 if (buffer[0] == '\n') /* empty line finishes the command */
 333                                         {
 334                                         g_free(buffer);
 335                                         fflush(stdout);
 336                                         break;
 337                                         }
 338                                 buffer[termpos] = '\0';
 339                                 printf("%s\n", buffer);
 340                                 g_free(buffer);
 341                                 buffer = NULL;
 342                                 }
 343                         }
 344
 345                 if (error)
 346                         {
 347                         log_printf("error reading socket: %s\n", error->message);
 348                         g_error_free(error);
 349                         ret = FALSE;
 350                         }
 351                 }
 352
 353
 354         /* restore the original signal handler */
 355         sigaction(SIGPIPE, &old_action, NULL);
 356         g_io_channel_unref(channel);
 357         return ret;
 358 }
 359
 360 void remote_close(RemoteConnection *rc)
 361 {
 362         if (!rc) return;
 363
 364         if (rc->server)
 365                 {
 366                 remote_server_clients_close(rc);
 367
 368                 g_source_remove(rc->channel_id);
 369                 unlink(rc->path);
 370                 }
 371
 372         if (rc->read_data)
 373                 g_free(rc->read_data);
 374
 375         close(rc->fd);
 376
 377         g_free(rc->path);
 378         g_free(rc);
 379 }
 380
 381 /*
 382  *-----------------------------------------------------------------------------
 383  * remote functions
 384  *-----------------------------------------------------------------------------
 385  */
 386
 387 static void gr_image_next(const gchar *text, GIOChannel *channel, gpointer data)
 388 {
 389         layout_image_next(NULL);
 390 }
 391
 392 static void gr_image_prev(const gchar *text, GIOChannel *channel, gpointer data)
 393 {
 394         layout_image_prev(NULL);
 395 }
 396
 397 static void gr_image_first(const gchar *text, GIOChannel *channel, gpointer data)
 398 {
 399         layout_image_first(NULL);
 400 }
 401
 402 static void gr_image_last(const gchar *text, GIOChannel *channel, gpointer data)
 403 {
 404         layout_image_last(NULL);
 405 }
 406
 407 static void gr_fullscreen_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 408 {
 409         layout_image_full_screen_toggle(NULL);
 410 }
 411
 412 static void gr_fullscreen_start(const gchar *text, GIOChannel *channel, gpointer data)
 413 {
 414         layout_image_full_screen_start(NULL);
 415 }
 416
 417 static void gr_fullscreen_stop(const gchar *text, GIOChannel *channel, gpointer data)
 418 {
 419         layout_image_full_screen_stop(NULL);
 420 }
 421
 422 static void gr_slideshow_start_rec(const gchar *text, GIOChannel *channel, gpointer data)
 423 {
 424         GList *list;
 425         FileData *dir_fd = file_data_new_dir(text);
 426         list = filelist_recursive(dir_fd);
 427         file_data_unref(dir_fd);
 428         if (!list) return;
 429 //printf("length: %d\n", g_list_length(list));
 430         layout_image_slideshow_stop(NULL);
 431         layout_image_slideshow_start_from_list(NULL, list);
 432 }
 433
 434 static void gr_cache_thumb(const gchar *text, GIOChannel *channel, gpointer data)
 435 {
 436         if (!g_strcmp0(text, "clear"))
 437                 cache_maintain_home_remote(FALSE, TRUE);
 438         else if (!g_strcmp0(text, "clean"))
 439                 cache_maintain_home_remote(FALSE, FALSE);
 440 }
 441
 442 static void gr_cache_shared(const gchar *text, GIOChannel *channel, gpointer data)
 443 {
 444         if (!g_strcmp0(text, "clear"))
 445                 cache_manager_standard_process_remote(TRUE);
 446         else if (!g_strcmp0(text, "clean"))
 447                 cache_manager_standard_process_remote(FALSE);
 448 }
 449
 450 static void gr_cache_metadata(const gchar *text, GIOChannel *channel, gpointer data)
 451 {
 452         cache_maintain_home_remote(TRUE, FALSE);
 453 }
 454
 455 static void gr_cache_render(const gchar *text, GIOChannel *channel, gpointer data)
 456 {
 457         cache_manager_render_remote(text, FALSE, FALSE);
 458 }
 459
 460 static void gr_cache_render_recurse(const gchar *text, GIOChannel *channel, gpointer data)
 461 {
 462         cache_manager_render_remote(text, TRUE, FALSE);
 463 }
 464
 465 static void gr_cache_render_standard(const gchar *text, GIOChannel *channel, gpointer data)
 466 {
 467         if(options->thumbnails.spec_standard)
 468                 cache_manager_render_remote(text, FALSE, TRUE);
 469 }
 470
 471 static void gr_cache_render_standard_recurse(const gchar *text, GIOChannel *channel, gpointer data)
 472 {
 473         if(options->thumbnails.spec_standard)
 474                 cache_manager_render_remote(text, TRUE, TRUE);
 475 }
 476
 477 static void gr_slideshow_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 478 {
 479         layout_image_slideshow_toggle(NULL);
 480 }
 481
 482 static void gr_slideshow_start(const gchar *text, GIOChannel *channel, gpointer data)
 483 {
 484         layout_image_slideshow_start(NULL);
 485 }
 486
 487 static void gr_slideshow_stop(const gchar *text, GIOChannel *channel, gpointer data)
 488 {
 489         layout_image_slideshow_stop(NULL);
 490 }
 491
 492 static void gr_slideshow_delay(const gchar *text, GIOChannel *channel, gpointer data)
 493 {
 494         gdouble n;
 495
 496         n = g_ascii_strtod(text, NULL);
 497         if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS)
 498                 {
 499                 printf_term("Remote slideshow delay out of range (%.1f to %.1f)\n",
 500                             SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
 501                 return;
 502                 }
 503         options->slideshow.delay = (gint)(n * 10.0 + 0.01);
 504 }
 505
 506 static void gr_tools_show(const gchar *text, GIOChannel *channel, gpointer data)
 507 {
 508         gboolean popped;
 509         gboolean hidden;
 510
 511         if (layout_tools_float_get(NULL, &popped, &hidden) && hidden)
 512                 {
 513                 layout_tools_float_set(NULL, popped, FALSE);
 514                 }
 515 }
 516
 517 static void gr_tools_hide(const gchar *text, GIOChannel *channel, gpointer data)
 518 {
 519         gboolean popped;
 520         gboolean hidden;
 521
 522         if (layout_tools_float_get(NULL, &popped, &hidden) && !hidden)
 523                 {
 524                 layout_tools_float_set(NULL, popped, TRUE);
 525                 }
 526 }
 527
 528 static gboolean gr_quit_idle_cb(gpointer data)
 529 {
 530         exit_program();
 531
 532         return FALSE;
 533 }
 534
 535 static void gr_quit(const gchar *text, GIOChannel *channel, gpointer data)
 536 {
 537         /* schedule exit when idle, if done from within a
 538          * remote handler remote_close will crash
 539          */
 540         g_idle_add(gr_quit_idle_cb, NULL);
 541 }
 542
 543 static void gr_file_load_no_raise(const gchar *text, GIOChannel *channel, gpointer data)
 544 {
 545         gchar *filename = expand_tilde(text);
 546
 547         if (isfile(filename))
 548                 {
 549                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
 550                         {
 551                         collection_window_new(filename);
 552                         }
 553                 else
 554                         {
 555                         layout_set_path(NULL, filename);
 556                         }
 557                 }
 558         else if (isdir(filename))
 559                 {
 560                 layout_set_path(NULL, filename);
 561                 }
 562         else
 563                 {
 564                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 565                 layout_set_path(NULL, homedir());
 566                 }
 567
 568         g_free(filename);
 569 }
 570
 571 static void gr_file_load(const gchar *text, GIOChannel *channel, gpointer data)
 572 {
 573         gr_file_load_no_raise(text, channel, data);
 574
 575         gr_raise(text, channel, data);
 576 }
 577
 578 static void gr_file_tell(const gchar *text, GIOChannel *channel, gpointer data)
 579 {
 580         LayoutWindow *lw = NULL; /* NULL to force layout_valid() to do some magic */
 581         if (!layout_valid(&lw)) return;
 582         if (image_get_path(lw->image))
 583                 {
 584                 g_io_channel_write_chars(channel, image_get_path(lw->image), -1, NULL, NULL);
 585                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 586                 }
 587 }
 588
 589 static void gr_config_load(const gchar *text, GIOChannel *channel, gpointer data)
 590 {
 591         gchar *filename = expand_tilde(text);
 592
 593         if (isfile(filename))
 594                 {
 595                 load_config_from_file(filename, FALSE);
 596                 }
 597         else
 598                 {
 599                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 600                 layout_set_path(NULL, homedir());
 601                 }
 602
 603         g_free(filename);
 604 }
 605
 606 static void gr_get_sidecars(const gchar *text, GIOChannel *channel, gpointer data)
 607 {
 608         gchar *filename = expand_tilde(text);
 609         FileData *fd = file_data_new_group(filename);
 610
 611         GList *work;
 612         if (fd->parent) fd = fd->parent;
 613
 614         g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 615         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 616
 617         work = fd->sidecar_files;
 618
 619         while (work)
 620                 {
 621                 fd = work->data;
 622                 work = work->next;
 623                 g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 624                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 625                 }
 626         g_free(filename);
 627 }
 628
 629 static void gr_get_destination(const gchar *text, GIOChannel *channel, gpointer data)
 630 {
 631         gchar *filename = expand_tilde(text);
 632         FileData *fd = file_data_new_group(filename);
 633
 634         if (fd->change && fd->change->dest)
 635                 {
 636                 g_io_channel_write_chars(channel, fd->change->dest, -1, NULL, NULL);
 637                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 638                 }
 639         g_free(filename);
 640 }
 641
 642 static void gr_file_view(const gchar *text, GIOChannel *channel, gpointer data)
 643 {
 644         gchar *filename = expand_tilde(text);
 645
 646         view_window_new(file_data_new_group(filename));
 647         g_free(filename);
 648 }
 649
 650 static void gr_list_clear(const gchar *text, GIOChannel *channel, gpointer data)
 651 {
 652         RemoteData *remote_data = data;
 653
 654         if (remote_data->command_collection)
 655                 {
 656                 collection_unref(remote_data->command_collection);
 657                 remote_data->command_collection = NULL;
 658                 }
 659 }
 660
 661 static void gr_list_add(const gchar *text, GIOChannel *channel, gpointer data)
 662 {
 663         RemoteData *remote_data = data;
 664         gboolean new = TRUE;
 665
 666         if (!remote_data->command_collection)
 667                 {
 668                 CollectionData *cd;
 669
 670                 cd = collection_new("");
 671
 672                 g_free(cd->path);
 673                 cd->path = NULL;
 674                 g_free(cd->name);
 675                 cd->name = g_strdup(_("Command line"));
 676
 677                 remote_data->command_collection = cd;
 678                 }
 679         else
 680                 {
 681                 new = (!collection_get_first(remote_data->command_collection));
 682                 }
 683
 684         if (collection_add(remote_data->command_collection, file_data_new_group(text), FALSE) && new)
 685                 {
 686                 layout_image_set_collection(NULL, remote_data->command_collection,
 687                                             collection_get_first(remote_data->command_collection));
 688                 }
 689 }
 690
 691 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data)
 692 {
 693         LayoutWindow *lw = NULL;
 694
 695         if (layout_valid(&lw))
 696                 {
 697                 gtk_window_present(GTK_WINDOW(lw->window));
 698                 }
 699 }
 700
 701 typedef struct _RemoteCommandEntry RemoteCommandEntry;
 702 struct _RemoteCommandEntry {
 703         gchar *opt_s;
 704         gchar *opt_l;
 705         void (*func)(const gchar *text, GIOChannel *channel, gpointer data);
 706         gboolean needs_extra;
 707         gboolean prefer_command_line;
 708         gchar *parameter;
 709         gchar *description;
 710 };
 711
 712 static RemoteCommandEntry remote_commands[] = {
 713         /* short, long                  callback,               extra, prefer, parameter, description */
 714         { "-n", "--next",               gr_image_next,          FALSE, FALSE, NULL, N_("next image") },
 715         { "-b", "--back",               gr_image_prev,          FALSE, FALSE, NULL, N_("previous image") },
 716         { NULL, "--first",              gr_image_first,         FALSE, FALSE, NULL, N_("first image") },
 717         { NULL, "--last",               gr_image_last,          FALSE, FALSE, NULL, N_("last image") },
 718         { "-f", "--fullscreen",         gr_fullscreen_toggle,   FALSE, TRUE,  NULL, N_("toggle full screen") },
 719         { "-fs","--fullscreen-start",   gr_fullscreen_start,    FALSE, FALSE, NULL, N_("start full screen") },
 720         { "-fS","--fullscreen-stop",    gr_fullscreen_stop,     FALSE, FALSE, NULL, N_("stop full screen") },
 721         { "-s", "--slideshow",          gr_slideshow_toggle,    FALSE, TRUE,  NULL, N_("toggle slide show") },
 722         { "-ss","--slideshow-start",    gr_slideshow_start,     FALSE, FALSE, NULL, N_("start slide show") },
 723         { "-sS","--slideshow-stop",     gr_slideshow_stop,      FALSE, FALSE, NULL, N_("stop slide show") },
 724         { NULL, "--slideshow-recurse:", gr_slideshow_start_rec, TRUE,  FALSE, N_("<FOLDER>"), N_("start recursive slide show in FOLDER") },
 725         { "-d", "--delay=",             gr_slideshow_delay,     TRUE,  FALSE, N_("<[N][.M]>"), N_("set slide show delay to N.M seconds") },
 726         { "+t", "--tools-show",         gr_tools_show,          FALSE, TRUE,  NULL, N_("show tools") },
 727         { "-t", "--tools-hide",         gr_tools_hide,          FALSE, TRUE,  NULL, N_("hide tools") },
 728         { "-q", "--quit",               gr_quit,                FALSE, FALSE, NULL, N_("quit") },
 729         { NULL, "--config-load:",       gr_config_load,         TRUE,  FALSE, N_("<FILE>"), N_("load configuration from FILE") },
 730         { NULL, "--get-sidecars:",      gr_get_sidecars,        TRUE,  FALSE, N_("<FILE>"), N_("get list of sidecars of FILE") },
 731         { NULL, "--get-destination:",   gr_get_destination,     TRUE,  FALSE, N_("<FILE>"), N_("get destination path of FILE") },
 732         { NULL, "file:",                gr_file_load,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE, bring Geeqie window to the top") },
 733         { NULL, "File:",                gr_file_load_no_raise,  TRUE,  FALSE, N_("<FILE>"), N_("open FILE, do not bring Geeqie window to the top") },
 734         { NULL, "--tell",               gr_file_tell,           FALSE, FALSE, NULL, N_("print filename of current image") },
 735         { NULL, "view:",                gr_file_view,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE in new window") },
 736         { NULL, "--list-clear",         gr_list_clear,          FALSE, FALSE, NULL, N_("clear command line collection list") },
 737         { NULL, "--list-add:",          gr_list_add,            TRUE,  FALSE, N_("<FILE>"), N_("add FILE to command line collection list") },
 738         { NULL, "raise",                gr_raise,               FALSE, FALSE, NULL, N_("bring the Geeqie window to the top") },
 739         { "-ct:", "--cache-thumbs:",    gr_cache_thumb,         TRUE, FALSE, N_("clear|clean"), N_("clear or clean thumbnail cache") },
 740         { "-cs:", "--cache-shared:",    gr_cache_shared,        TRUE, FALSE, N_("clear|clean"), N_("clear or clean shared thumbnail cache") },
 741         { "-cm","--cache-metadata",      gr_cache_metadata,               FALSE, FALSE, NULL, N_("    clean the metadata cache") },
 742         { "-cr:", "--cache-render:",    gr_cache_render,        TRUE, FALSE, N_("<folder>  "), N_(" render thumbnails") },
 743         { "-crr:", "--cache-render-recurse:", gr_cache_render_recurse, TRUE, FALSE, N_("<folder> "), N_("render thumbnails recursively") },
 744         { "-crs:", "--cache-render-shared:", gr_cache_render_standard, TRUE, FALSE, N_("<folder> "), N_(" render thumbnails (see Help)") },
 745         { "-crsr:", "--cache-render-shared-recurse:", gr_cache_render_standard_recurse, TRUE, FALSE, N_("<folder>"), N_(" render thumbnails recursively (see Help)") },
 746         { NULL, NULL, NULL, FALSE, FALSE, NULL, NULL }
 747 };
 748
 749 static RemoteCommandEntry *remote_command_find(const gchar *text, const gchar **offset)
 750 {
 751         gboolean match = FALSE;
 752         gint i;
 753
 754         i = 0;
 755         while (!match && remote_commands[i].func != NULL)
 756                 {
 757                 if (remote_commands[i].needs_extra)
 758                         {
 759                         if (remote_commands[i].opt_s &&
 760                             strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
 761                                 {
 762                                 if (offset) *offset = text + strlen(remote_commands[i].opt_s);
 763                                 return &remote_commands[i];
 764                                 }
 765                         else if (remote_commands[i].opt_l &&
 766                                  strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
 767                                 {
 768                                 if (offset) *offset = text + strlen(remote_commands[i].opt_l);
 769                                 return &remote_commands[i];
 770                                 }
 771                         }
 772                 else
 773                         {
 774                         if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
 775                             (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
 776                                 {
 777                                 if (offset) *offset = text;
 778                                 return &remote_commands[i];
 779                                 }
 780                         }
 781
 782                 i++;
 783                 }
 784
 785         return NULL;
 786 }
 787
 788 static void remote_cb(RemoteConnection *rc, const gchar *text, GIOChannel *channel, gpointer data)
 789 {
 790         RemoteCommandEntry *entry;
 791         const gchar *offset;
 792
 793         entry = remote_command_find(text, &offset);
 794         if (entry && entry->func)
 795                 {
 796                 entry->func(offset, channel, data);
 797                 }
 798         else
 799                 {
 800                 log_printf("unknown remote command:%s\n", text);
 801                 }
 802 }
 803
 804 void remote_help(void)
 805 {
 806         gint i;
 807         gchar *s_opt_param;
 808         gchar *l_opt_param;
 809
 810         print_term(_("Remote command list:\n"));
 811
 812         i = 0;
 813         while (remote_commands[i].func != NULL)
 814                 {
 815                 if (remote_commands[i].description)
 816                         {
 817                         s_opt_param = g_strconcat(remote_commands[i].opt_s, remote_commands[i].parameter, NULL);
 818                         l_opt_param = g_strconcat(remote_commands[i].opt_l, remote_commands[i].parameter, NULL);
 819                         printf_term("  %-11s%-1s %-30s%-s\n",
 820                                     (remote_commands[i].opt_s) ? s_opt_param : "",
 821                                     (remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
 822                                     (remote_commands[i].opt_l) ? l_opt_param : "",
 823                                     _(remote_commands[i].description));
 824                         g_free(s_opt_param);
 825                         g_free(l_opt_param);
 826                         }
 827                 i++;
 828                 }
 829         printf_term(N_("\n  All other command line parameters are used as plain files if they exists.\n"));
 830 }
 831
 832 GList *remote_build_list(GList *list, gint argc, gchar *argv[], GList **errors)
 833 {
 834         gint i;
 835
 836         i = 1;
 837         while (i < argc)
 838                 {
 839                 RemoteCommandEntry *entry;
 840
 841                 entry = remote_command_find(argv[i], NULL);
 842                 if (entry)
 843                         {
 844                         list = g_list_append(list, argv[i]);
 845                         }
 846                 else if (errors && !isfile(argv[i]))
 847                         {
 848                         *errors = g_list_append(*errors, argv[i]);
 849                         }
 850                 i++;
 851                 }
 852
 853         return list;
 854 }
 855
 856 /**
 857  * \param arg_exec Binary (argv0)
 858  * \param remote_list Evaluated and recognized remote commands
 859  * \param path The current path
 860  * \param cmd_list List of all non collections in Path
 861  * \param collection_list List of all collections in argv
 862  */
 863 void remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
 864                     GList *cmd_list, GList *collection_list)
 865 {
 866         RemoteConnection *rc;
 867         gboolean started = FALSE;
 868         gchar *buf;
 869
 870         buf = g_build_filename(get_rc_dir(), ".command", NULL);
 871         rc = remote_client_open(buf);
 872         if (!rc)
 873                 {
 874                 GString *command;
 875                 GList *work;
 876                 gint retry_count = 12;
 877                 gboolean blank = FALSE;
 878
 879                 printf_term(_("Remote %s not running, starting..."), GQ_APPNAME);
 880
 881                 command = g_string_new(arg_exec);
 882
 883                 work = remote_list;
 884                 while (work)
 885                         {
 886                         gchar *text;
 887                         RemoteCommandEntry *entry;
 888
 889                         text = work->data;
 890                         work = work->next;
 891
 892                         entry = remote_command_find(text, NULL);
 893                         if (entry)
 894                                 {
 895                                 if (entry->prefer_command_line)
 896                                         {
 897                                         remote_list = g_list_remove(remote_list, text);
 898                                         g_string_append(command, " ");
 899                                         g_string_append(command, text);
 900                                         }
 901                                 if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
 902                                         {
 903                                         blank = TRUE;
 904                                         }
 905                                 }
 906                         }
 907
 908                 if (blank || cmd_list || path) g_string_append(command, " --blank");
 909                 if (get_debug_level()) g_string_append(command, " --debug");
 910
 911                 g_string_append(command, " &");
 912                 runcmd(command->str);
 913                 g_string_free(command, TRUE);
 914
 915                 while (!rc && retry_count > 0)
 916                         {
 917                         usleep((retry_count > 10) ? 500000 : 1000000);
 918                         rc = remote_client_open(buf);
 919                         if (!rc) print_term(".");
 920                         retry_count--;
 921                         }
 922
 923                 print_term("\n");
 924
 925                 started = TRUE;
 926                 }
 927         g_free(buf);
 928
 929         if (rc)
 930                 {
 931                 GList *work;
 932                 const gchar *prefix;
 933                 gboolean use_path = TRUE;
 934                 gboolean sent = FALSE;
 935
 936                 work = remote_list;
 937                 while (work)
 938                         {
 939                         gchar *text;
 940                         RemoteCommandEntry *entry;
 941
 942                         text = work->data;
 943                         work = work->next;
 944
 945                         entry = remote_command_find(text, NULL);
 946                         if (entry &&
 947                             entry->opt_l &&
 948                             strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;
 949
 950                         remote_client_send(rc, text);
 951
 952                         sent = TRUE;
 953                         }
 954
 955                 if (cmd_list && cmd_list->next)
 956                         {
 957                         prefix = "--list-add:";
 958                         remote_client_send(rc, "--list-clear");
 959                         }
 960                 else
 961                         {
 962                         prefix = "file:";
 963                         }
 964
 965                 work = cmd_list;
 966                 while (work)
 967                         {
 968                         FileData *fd;
 969                         gchar *text;
 970
 971                         fd = work->data;
 972                         work = work->next;
 973
 974                         text = g_strconcat(prefix, fd->path, NULL);
 975                         remote_client_send(rc, text);
 976                         g_free(text);
 977
 978                         sent = TRUE;
 979                         }
 980
 981                 if (path && !cmd_list && use_path)
 982                         {
 983                         gchar *text;
 984
 985                         text = g_strdup_printf("file:%s", path);
 986                         remote_client_send(rc, text);
 987                         g_free(text);
 988
 989                         sent = TRUE;
 990                         }
 991
 992                 work = collection_list;
 993                 while (work)
 994                         {
 995                         const gchar *name;
 996                         gchar *text;
 997
 998                         name = work->data;
 999                         work = work->next;
1000
1001                         text = g_strdup_printf("file:%s", name);
1002                         remote_client_send(rc, text);
1003                         g_free(text);
1004
1005                         sent = TRUE;
1006                         }
1007
1008                 if (!started && !sent)
1009                         {
1010                         remote_client_send(rc, "raise");
1011                         }
1012                 }
1013         else
1014                 {
1015                 print_term(_("Remote not available\n"));
1016                 }
1017
1018         _exit(0);
1019 }
1020
1021 RemoteConnection *remote_server_init(gchar *path, CollectionData *command_collection)
1022 {
1023         RemoteConnection *remote_connection = remote_server_open(path);
1024         RemoteData *remote_data = g_new(RemoteData, 1);
1025
1026         remote_data->command_collection = command_collection;
1027
1028         remote_server_subscribe(remote_connection, remote_cb, remote_data);
1029         return remote_connection;
1030 }
1031 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */