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_clear(const gchar *text, GIOChannel *channel, gpointer data)
 456 {
 457         cache_maintain_home_remote(FALSE, TRUE);
 458 }
 459
 460 static void gr_cache_render(const gchar *text, GIOChannel *channel, gpointer data)
 461 {
 462         cache_manager_render_remote(text, FALSE, FALSE);
 463 }
 464
 465 static void gr_cache_render_recurse(const gchar *text, GIOChannel *channel, gpointer data)
 466 {
 467         cache_manager_render_remote(text, TRUE, FALSE);
 468 }
 469
 470 static void gr_cache_render_standard(const gchar *text, GIOChannel *channel, gpointer data)
 471 {
 472         if(options->thumbnails.spec_standard)
 473                 cache_manager_render_remote(text, FALSE, TRUE);
 474 }
 475
 476 static void gr_cache_render_standard_recurse(const gchar *text, GIOChannel *channel, gpointer data)
 477 {
 478         if(options->thumbnails.spec_standard)
 479                 cache_manager_render_remote(text, TRUE, TRUE);
 480 }
 481
 482 static void gr_slideshow_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 483 {
 484         layout_image_slideshow_toggle(NULL);
 485 }
 486
 487 static void gr_slideshow_start(const gchar *text, GIOChannel *channel, gpointer data)
 488 {
 489         layout_image_slideshow_start(NULL);
 490 }
 491
 492 static void gr_slideshow_stop(const gchar *text, GIOChannel *channel, gpointer data)
 493 {
 494         layout_image_slideshow_stop(NULL);
 495 }
 496
 497 static void gr_slideshow_delay(const gchar *text, GIOChannel *channel, gpointer data)
 498 {
 499         gdouble n;
 500
 501         n = g_ascii_strtod(text, NULL);
 502         if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS)
 503                 {
 504                 printf_term("Remote slideshow delay out of range (%.1f to %.1f)\n",
 505                             SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
 506                 return;
 507                 }
 508         options->slideshow.delay = (gint)(n * 10.0 + 0.01);
 509 }
 510
 511 static void gr_tools_show(const gchar *text, GIOChannel *channel, gpointer data)
 512 {
 513         gboolean popped;
 514         gboolean hidden;
 515
 516         if (layout_tools_float_get(NULL, &popped, &hidden) && hidden)
 517                 {
 518                 layout_tools_float_set(NULL, popped, FALSE);
 519                 }
 520 }
 521
 522 static void gr_tools_hide(const gchar *text, GIOChannel *channel, gpointer data)
 523 {
 524         gboolean popped;
 525         gboolean hidden;
 526
 527         if (layout_tools_float_get(NULL, &popped, &hidden) && !hidden)
 528                 {
 529                 layout_tools_float_set(NULL, popped, TRUE);
 530                 }
 531 }
 532
 533 static gboolean gr_quit_idle_cb(gpointer data)
 534 {
 535         exit_program();
 536
 537         return FALSE;
 538 }
 539
 540 static void gr_quit(const gchar *text, GIOChannel *channel, gpointer data)
 541 {
 542         /* schedule exit when idle, if done from within a
 543          * remote handler remote_close will crash
 544          */
 545         g_idle_add(gr_quit_idle_cb, NULL);
 546 }
 547
 548 static void gr_file_load_no_raise(const gchar *text, GIOChannel *channel, gpointer data)
 549 {
 550         gchar *filename = expand_tilde(text);
 551
 552         if (isfile(filename))
 553                 {
 554                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
 555                         {
 556                         collection_window_new(filename);
 557                         }
 558                 else
 559                         {
 560                         layout_set_path(NULL, filename);
 561                         }
 562                 }
 563         else if (isdir(filename))
 564                 {
 565                 layout_set_path(NULL, filename);
 566                 }
 567         else
 568                 {
 569                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 570                 layout_set_path(NULL, homedir());
 571                 }
 572
 573         g_free(filename);
 574 }
 575
 576 static void gr_file_load(const gchar *text, GIOChannel *channel, gpointer data)
 577 {
 578         gr_file_load_no_raise(text, channel, data);
 579
 580         gr_raise(text, channel, data);
 581 }
 582
 583 static void gr_file_tell(const gchar *text, GIOChannel *channel, gpointer data)
 584 {
 585         LayoutWindow *lw = NULL; /* NULL to force layout_valid() to do some magic */
 586         if (!layout_valid(&lw)) return;
 587         if (image_get_path(lw->image))
 588                 {
 589                 g_io_channel_write_chars(channel, image_get_path(lw->image), -1, NULL, NULL);
 590                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 591                 }
 592 }
 593
 594 static void gr_config_load(const gchar *text, GIOChannel *channel, gpointer data)
 595 {
 596         gchar *filename = expand_tilde(text);
 597
 598         if (isfile(filename))
 599                 {
 600                 load_config_from_file(filename, FALSE);
 601                 }
 602         else
 603                 {
 604                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 605                 layout_set_path(NULL, homedir());
 606                 }
 607
 608         g_free(filename);
 609 }
 610
 611 static void gr_get_sidecars(const gchar *text, GIOChannel *channel, gpointer data)
 612 {
 613         gchar *filename = expand_tilde(text);
 614         FileData *fd = file_data_new_group(filename);
 615
 616         GList *work;
 617         if (fd->parent) fd = fd->parent;
 618
 619         g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 620         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 621
 622         work = fd->sidecar_files;
 623
 624         while (work)
 625                 {
 626                 fd = work->data;
 627                 work = work->next;
 628                 g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 629                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 630                 }
 631         g_free(filename);
 632 }
 633
 634 static void gr_get_destination(const gchar *text, GIOChannel *channel, gpointer data)
 635 {
 636         gchar *filename = expand_tilde(text);
 637         FileData *fd = file_data_new_group(filename);
 638
 639         if (fd->change && fd->change->dest)
 640                 {
 641                 g_io_channel_write_chars(channel, fd->change->dest, -1, NULL, NULL);
 642                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 643                 }
 644         g_free(filename);
 645 }
 646
 647 static void gr_file_view(const gchar *text, GIOChannel *channel, gpointer data)
 648 {
 649         gchar *filename = expand_tilde(text);
 650
 651         view_window_new(file_data_new_group(filename));
 652         g_free(filename);
 653 }
 654
 655 static void gr_list_clear(const gchar *text, GIOChannel *channel, gpointer data)
 656 {
 657         RemoteData *remote_data = data;
 658
 659         if (remote_data->command_collection)
 660                 {
 661                 collection_unref(remote_data->command_collection);
 662                 remote_data->command_collection = NULL;
 663                 }
 664 }
 665
 666 static void gr_list_add(const gchar *text, GIOChannel *channel, gpointer data)
 667 {
 668         RemoteData *remote_data = data;
 669         gboolean new = TRUE;
 670
 671         if (!remote_data->command_collection)
 672                 {
 673                 CollectionData *cd;
 674
 675                 cd = collection_new("");
 676
 677                 g_free(cd->path);
 678                 cd->path = NULL;
 679                 g_free(cd->name);
 680                 cd->name = g_strdup(_("Command line"));
 681
 682                 remote_data->command_collection = cd;
 683                 }
 684         else
 685                 {
 686                 new = (!collection_get_first(remote_data->command_collection));
 687                 }
 688
 689         if (collection_add(remote_data->command_collection, file_data_new_group(text), FALSE) && new)
 690                 {
 691                 layout_image_set_collection(NULL, remote_data->command_collection,
 692                                             collection_get_first(remote_data->command_collection));
 693                 }
 694 }
 695
 696 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data)
 697 {
 698         LayoutWindow *lw = NULL;
 699
 700         if (layout_valid(&lw))
 701                 {
 702                 gtk_window_present(GTK_WINDOW(lw->window));
 703                 }
 704 }
 705
 706 typedef struct _RemoteCommandEntry RemoteCommandEntry;
 707 struct _RemoteCommandEntry {
 708         gchar *opt_s;
 709         gchar *opt_l;
 710         void (*func)(const gchar *text, GIOChannel *channel, gpointer data);
 711         gboolean needs_extra;
 712         gboolean prefer_command_line;
 713         gchar *parameter;
 714         gchar *description;
 715 };
 716
 717 static RemoteCommandEntry remote_commands[] = {
 718         /* short, long                  callback,               extra, prefer, parameter, description */
 719         { "-n", "--next",               gr_image_next,          FALSE, FALSE, NULL, N_("next image") },
 720         { "-b", "--back",               gr_image_prev,          FALSE, FALSE, NULL, N_("previous image") },
 721         { NULL, "--first",              gr_image_first,         FALSE, FALSE, NULL, N_("first image") },
 722         { NULL, "--last",               gr_image_last,          FALSE, FALSE, NULL, N_("last image") },
 723         { "-f", "--fullscreen",         gr_fullscreen_toggle,   FALSE, TRUE,  NULL, N_("toggle full screen") },
 724         { "-fs","--fullscreen-start",   gr_fullscreen_start,    FALSE, FALSE, NULL, N_("start full screen") },
 725         { "-fS","--fullscreen-stop",    gr_fullscreen_stop,     FALSE, FALSE, NULL, N_("stop full screen") },
 726         { "-s", "--slideshow",          gr_slideshow_toggle,    FALSE, TRUE,  NULL, N_("toggle slide show") },
 727         { "-ss","--slideshow-start",    gr_slideshow_start,     FALSE, FALSE, NULL, N_("start slide show") },
 728         { "-sS","--slideshow-stop",     gr_slideshow_stop,      FALSE, FALSE, NULL, N_("stop slide show") },
 729         { NULL, "--slideshow-recurse:", gr_slideshow_start_rec, TRUE,  FALSE, N_("<FOLDER>"), N_("start recursive slide show in FOLDER") },
 730         { "-d", "--delay=",             gr_slideshow_delay,     TRUE,  FALSE, N_("<[N][.M]>"), N_("set slide show delay to N.M seconds") },
 731         { "+t", "--tools-show",         gr_tools_show,          FALSE, TRUE,  NULL, N_("show tools") },
 732         { "-t", "--tools-hide",         gr_tools_hide,          FALSE, TRUE,  NULL, N_("hide tools") },
 733         { "-q", "--quit",               gr_quit,                FALSE, FALSE, NULL, N_("quit") },
 734         { NULL, "--config-load:",       gr_config_load,         TRUE,  FALSE, N_("<FILE>"), N_("load configuration from FILE") },
 735         { NULL, "--get-sidecars:",      gr_get_sidecars,        TRUE,  FALSE, N_("<FILE>"), N_("get list of sidecars of FILE") },
 736         { NULL, "--get-destination:",   gr_get_destination,     TRUE,  FALSE, N_("<FILE>"), N_("get destination path of FILE") },
 737         { NULL, "file:",                gr_file_load,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE, bring Geeqie window to the top") },
 738         { NULL, "File:",                gr_file_load_no_raise,  TRUE,  FALSE, N_("<FILE>"), N_("open FILE, do not bring Geeqie window to the top") },
 739         { NULL, "--tell",               gr_file_tell,           FALSE, FALSE, NULL, N_("print filename of current image") },
 740         { NULL, "view:",                gr_file_view,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE in new window") },
 741         { NULL, "--list-clear",         gr_list_clear,          FALSE, FALSE, NULL, N_("clear command line collection list") },
 742         { NULL, "--list-add:",          gr_list_add,            TRUE,  FALSE, N_("<FILE>"), N_("add FILE to command line collection list") },
 743         { NULL, "raise",                gr_raise,               FALSE, FALSE, NULL, N_("bring the Geeqie window to the top") },
 744         { "-ct:", "--cache-thumbs:",    gr_cache_thumb,         TRUE, FALSE, N_("clear|clean"), N_("clear or clean thumbnail cache") },
 745         { "-cs:", "--cache-shared:",    gr_cache_shared,        TRUE, FALSE, N_("clear|clean"), N_("clear or clean shared thumbnail cache") },
 746         { "-cm","--cache-metadata",      gr_cache_metadata,               FALSE, FALSE, NULL, N_("    clean the metadata cache") },
 747         { "-cr:", "--cache-render:",    gr_cache_render,        TRUE, FALSE, N_("<folder>  "), N_(" render thumbnails") },
 748         { "-crr:", "--cache-render-recurse:", gr_cache_render_recurse, TRUE, FALSE, N_("<folder> "), N_("render thumbnails recursively") },
 749         { "-crs:", "--cache-render-shared:", gr_cache_render_standard, TRUE, FALSE, N_("<folder> "), N_(" render thumbnails (see Help)") },
 750         { "-crsr:", "--cache-render-shared-recurse:", gr_cache_render_standard_recurse, TRUE, FALSE, N_("<folder>"), N_(" render thumbnails recursively (see Help)") },
 751         { NULL, NULL, NULL, FALSE, FALSE, NULL }
 752 };
 753
 754 static RemoteCommandEntry *remote_command_find(const gchar *text, const gchar **offset)
 755 {
 756         gboolean match = FALSE;
 757         gint i;
 758
 759         i = 0;
 760         while (!match && remote_commands[i].func != NULL)
 761                 {
 762                 if (remote_commands[i].needs_extra)
 763                         {
 764                         if (remote_commands[i].opt_s &&
 765                             strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
 766                                 {
 767                                 if (offset) *offset = text + strlen(remote_commands[i].opt_s);
 768                                 return &remote_commands[i];
 769                                 }
 770                         else if (remote_commands[i].opt_l &&
 771                                  strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
 772                                 {
 773                                 if (offset) *offset = text + strlen(remote_commands[i].opt_l);
 774                                 return &remote_commands[i];
 775                                 }
 776                         }
 777                 else
 778                         {
 779                         if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
 780                             (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
 781                                 {
 782                                 if (offset) *offset = text;
 783                                 return &remote_commands[i];
 784                                 }
 785                         }
 786
 787                 i++;
 788                 }
 789
 790         return NULL;
 791 }
 792
 793 static void remote_cb(RemoteConnection *rc, const gchar *text, GIOChannel *channel, gpointer data)
 794 {
 795         RemoteCommandEntry *entry;
 796         const gchar *offset;
 797
 798         entry = remote_command_find(text, &offset);
 799         if (entry && entry->func)
 800                 {
 801                 entry->func(offset, channel, data);
 802                 }
 803         else
 804                 {
 805                 log_printf("unknown remote command:%s\n", text);
 806                 }
 807 }
 808
 809 void remote_help(void)
 810 {
 811         gint i;
 812         gchar *s_opt_param;
 813         gchar *l_opt_param;
 814
 815         print_term(_("Remote command list:\n"));
 816
 817         i = 0;
 818         while (remote_commands[i].func != NULL)
 819                 {
 820                 if (remote_commands[i].description)
 821                         {
 822                         s_opt_param = g_strconcat(remote_commands[i].opt_s, remote_commands[i].parameter, NULL);
 823                         l_opt_param = g_strconcat(remote_commands[i].opt_l, remote_commands[i].parameter, NULL);
 824                         printf_term("  %-11s%-1s %-30s%-s\n",
 825                                     (remote_commands[i].opt_s) ? s_opt_param : "",
 826                                     (remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
 827                                     (remote_commands[i].opt_l) ? l_opt_param : "",
 828                                     _(remote_commands[i].description));
 829                         g_free(s_opt_param);
 830                         g_free(l_opt_param);
 831                         }
 832                 i++;
 833                 }
 834         printf_term(N_("\n  All other command line parameters are used as plain files if they exists.\n"));
 835 }
 836
 837 GList *remote_build_list(GList *list, gint argc, gchar *argv[], GList **errors)
 838 {
 839         gint i;
 840
 841         i = 1;
 842         while (i < argc)
 843                 {
 844                 RemoteCommandEntry *entry;
 845
 846                 entry = remote_command_find(argv[i], NULL);
 847                 if (entry)
 848                         {
 849                         list = g_list_append(list, argv[i]);
 850                         }
 851                 else if (errors && !isfile(argv[i]))
 852                         {
 853                         *errors = g_list_append(*errors, argv[i]);
 854                         }
 855                 i++;
 856                 }
 857
 858         return list;
 859 }
 860
 861 /**
 862  * \param arg_exec Binary (argv0)
 863  * \param remote_list Evaluated and recognized remote commands
 864  * \param path The current path
 865  * \param cmd_list List of all non collections in Path
 866  * \param collection_list List of all collections in argv
 867  */
 868 void remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
 869                     GList *cmd_list, GList *collection_list)
 870 {
 871         RemoteConnection *rc;
 872         gboolean started = FALSE;
 873         gchar *buf;
 874
 875         buf = g_build_filename(get_rc_dir(), ".command", NULL);
 876         rc = remote_client_open(buf);
 877         if (!rc)
 878                 {
 879                 GString *command;
 880                 GList *work;
 881                 gint retry_count = 12;
 882                 gboolean blank = FALSE;
 883
 884                 printf_term(_("Remote %s not running, starting..."), GQ_APPNAME);
 885
 886                 command = g_string_new(arg_exec);
 887
 888                 work = remote_list;
 889                 while (work)
 890                         {
 891                         gchar *text;
 892                         RemoteCommandEntry *entry;
 893
 894                         text = work->data;
 895                         work = work->next;
 896
 897                         entry = remote_command_find(text, NULL);
 898                         if (entry)
 899                                 {
 900                                 if (entry->prefer_command_line)
 901                                         {
 902                                         remote_list = g_list_remove(remote_list, text);
 903                                         g_string_append(command, " ");
 904                                         g_string_append(command, text);
 905                                         }
 906                                 if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
 907                                         {
 908                                         blank = TRUE;
 909                                         }
 910                                 }
 911                         }
 912
 913                 if (blank || cmd_list || path) g_string_append(command, " --blank");
 914                 if (get_debug_level()) g_string_append(command, " --debug");
 915
 916                 g_string_append(command, " &");
 917                 runcmd(command->str);
 918                 g_string_free(command, TRUE);
 919
 920                 while (!rc && retry_count > 0)
 921                         {
 922                         usleep((retry_count > 10) ? 500000 : 1000000);
 923                         rc = remote_client_open(buf);
 924                         if (!rc) print_term(".");
 925                         retry_count--;
 926                         }
 927
 928                 print_term("\n");
 929
 930                 started = TRUE;
 931                 }
 932         g_free(buf);
 933
 934         if (rc)
 935                 {
 936                 GList *work;
 937                 const gchar *prefix;
 938                 gboolean use_path = TRUE;
 939                 gboolean sent = FALSE;
 940
 941                 work = remote_list;
 942                 while (work)
 943                         {
 944                         gchar *text;
 945                         RemoteCommandEntry *entry;
 946
 947                         text = work->data;
 948                         work = work->next;
 949
 950                         entry = remote_command_find(text, NULL);
 951                         if (entry &&
 952                             entry->opt_l &&
 953                             strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;
 954
 955                         remote_client_send(rc, text);
 956
 957                         sent = TRUE;
 958                         }
 959
 960                 if (cmd_list && cmd_list->next)
 961                         {
 962                         prefix = "--list-add:";
 963                         remote_client_send(rc, "--list-clear");
 964                         }
 965                 else
 966                         {
 967                         prefix = "file:";
 968                         }
 969
 970                 work = cmd_list;
 971                 while (work)
 972                         {
 973                         FileData *fd;
 974                         gchar *text;
 975
 976                         fd = work->data;
 977                         work = work->next;
 978
 979                         text = g_strconcat(prefix, fd->path, NULL);
 980                         remote_client_send(rc, text);
 981                         g_free(text);
 982
 983                         sent = TRUE;
 984                         }
 985
 986                 if (path && !cmd_list && use_path)
 987                         {
 988                         gchar *text;
 989
 990                         text = g_strdup_printf("file:%s", path);
 991                         remote_client_send(rc, text);
 992                         g_free(text);
 993
 994                         sent = TRUE;
 995                         }
 996
 997                 work = collection_list;
 998                 while (work)
 999                         {
1000                         const gchar *name;
1001                         gchar *text;
1002
1003                         name = work->data;
1004                         work = work->next;
1005
1006                         text = g_strdup_printf("file:%s", name);
1007                         remote_client_send(rc, text);
1008                         g_free(text);
1009
1010                         sent = TRUE;
1011                         }
1012
1013                 if (!started && !sent)
1014                         {
1015                         remote_client_send(rc, "raise");
1016                         }
1017                 }
1018         else
1019                 {
1020                 print_term(_("Remote not available\n"));
1021                 }
1022
1023         _exit(0);
1024 }
1025
1026 RemoteConnection *remote_server_init(gchar *path, CollectionData *command_collection)
1027 {
1028         RemoteConnection *remote_connection = remote_server_open(path);
1029         RemoteData *remote_data = g_new(RemoteData, 1);
1030
1031         remote_data->command_collection = command_collection;
1032
1033         remote_server_subscribe(remote_connection, remote_cb, remote_data);
1034         return remote_connection;
1035 }
1036 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */