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 "layout_util.h"
  33 #include "misc.h"
  34 #include "pixbuf-renderer.h"
  35 #include "slideshow.h"
  36 #include "ui_fileops.h"
  37 #include "rcfile.h"
  38
  39 #include <sys/socket.h>
  40 #include <sys/un.h>
  41 #include <signal.h>
  42 #include <errno.h>
  43
  44 #include "glua.h"
  45
  46 #define SERVER_MAX_CLIENTS 8
  47
  48 #define REMOTE_SERVER_BACKLOG 4
  49
  50
  51 #ifndef UNIX_PATH_MAX
  52 #define UNIX_PATH_MAX 108
  53 #endif
  54
  55
  56 static RemoteConnection *remote_client_open(const gchar *path);
  57 static gint remote_client_send(RemoteConnection *rc, const gchar *text);
  58 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data);
  59
  60 static LayoutWindow *lw_id = NULL; /* points to the window set by the --id option */
  61
  62 typedef struct _RemoteClient RemoteClient;
  63 struct _RemoteClient {
  64         gint fd;
  65         guint channel_id; /* event source id */
  66         RemoteConnection *rc;
  67 };
  68
  69 typedef struct _RemoteData RemoteData;
  70 struct _RemoteData {
  71         CollectionData *command_collection;
  72 };
  73
  74
  75 static gboolean remote_server_client_cb(GIOChannel *source, GIOCondition condition, gpointer data)
  76 {
  77         RemoteClient *client = data;
  78         RemoteConnection *rc;
  79         GIOStatus status = G_IO_STATUS_NORMAL;
  80
  81         lw_id = NULL;
  82         rc = client->rc;
  83
  84         if (condition & G_IO_IN)
  85                 {
  86                 gchar *buffer = NULL;
  87                 GError *error = NULL;
  88                 gsize termpos;
  89
  90                 while ((status = g_io_channel_read_line(source, &buffer, NULL, &termpos, &error)) == G_IO_STATUS_NORMAL)
  91                         {
  92                         if (buffer)
  93                                 {
  94                                 buffer[termpos] = '\0';
  95
  96                                 if (strlen(buffer) > 0)
  97                                         {
  98                                         if (rc->read_func) rc->read_func(rc, buffer, source, rc->read_data);
  99                                         g_io_channel_write_chars(source, "\n", -1, NULL, NULL); /* empty line finishes the command */
 100                                         g_io_channel_flush(source, NULL);
 101                                         }
 102                                 g_free(buffer);
 103
 104                                 buffer = NULL;
 105                                 }
 106                         }
 107
 108                 if (error)
 109                         {
 110                         log_printf("error reading socket: %s\n", error->message);
 111                         g_error_free(error);
 112                         }
 113                 }
 114
 115         if (condition & G_IO_HUP || status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR)
 116                 {
 117                 rc->clients = g_list_remove(rc->clients, client);
 118
 119                 DEBUG_1("HUP detected, closing client.");
 120                 DEBUG_1("client count %d", g_list_length(rc->clients));
 121
 122                 g_source_remove(client->channel_id);
 123                 close(client->fd);
 124                 g_free(client);
 125                 }
 126
 127         return TRUE;
 128 }
 129
 130 static void remote_server_client_add(RemoteConnection *rc, gint fd)
 131 {
 132         RemoteClient *client;
 133         GIOChannel *channel;
 134
 135         if (g_list_length(rc->clients) > SERVER_MAX_CLIENTS)
 136                 {
 137                 log_printf("maximum remote clients of %d exceeded, closing connection\n", SERVER_MAX_CLIENTS);
 138                 close(fd);
 139                 return;
 140                 }
 141
 142         client = g_new0(RemoteClient, 1);
 143         client->rc = rc;
 144         client->fd = fd;
 145
 146         channel = g_io_channel_unix_new(fd);
 147         client->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN | G_IO_HUP,
 148                                                  remote_server_client_cb, client, NULL);
 149         g_io_channel_unref(channel);
 150
 151         rc->clients = g_list_append(rc->clients, client);
 152         DEBUG_1("client count %d", g_list_length(rc->clients));
 153 }
 154
 155 static void remote_server_clients_close(RemoteConnection *rc)
 156 {
 157         while (rc->clients)
 158                 {
 159                 RemoteClient *client = rc->clients->data;
 160
 161                 rc->clients = g_list_remove(rc->clients, client);
 162
 163                 g_source_remove(client->channel_id);
 164                 close(client->fd);
 165                 g_free(client);
 166                 }
 167 }
 168
 169 static gboolean remote_server_read_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 170 {
 171         RemoteConnection *rc = data;
 172         gint fd;
 173         guint alen;
 174
 175         fd = accept(rc->fd, NULL, &alen);
 176         if (fd == -1)
 177                 {
 178                 log_printf("error accepting socket: %s\n", strerror(errno));
 179                 return TRUE;
 180                 }
 181
 182         remote_server_client_add(rc, fd);
 183
 184         return TRUE;
 185 }
 186
 187 gboolean remote_server_exists(const gchar *path)
 188 {
 189         RemoteConnection *rc;
 190
 191         /* verify server up */
 192         rc = remote_client_open(path);
 193         remote_close(rc);
 194
 195         if (rc) return TRUE;
 196
 197         /* unable to connect, remove socket file to free up address */
 198         unlink(path);
 199         return FALSE;
 200 }
 201
 202 static RemoteConnection *remote_server_open(const gchar *path)
 203 {
 204         RemoteConnection *rc;
 205         struct sockaddr_un addr;
 206         gint sun_path_len;
 207         gint fd;
 208         GIOChannel *channel;
 209
 210         if (remote_server_exists(path))
 211                 {
 212                 log_printf("Address already in use: %s\n", path);
 213                 return NULL;
 214                 }
 215
 216         fd = socket(PF_UNIX, SOCK_STREAM, 0);
 217         if (fd == -1) return NULL;
 218
 219         addr.sun_family = AF_UNIX;
 220         sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
 221         strncpy(addr.sun_path, path, sun_path_len);
 222         if (bind(fd, &addr, sizeof(addr)) == -1 ||
 223             listen(fd, REMOTE_SERVER_BACKLOG) == -1)
 224                 {
 225                 log_printf("error subscribing to socket: %s\n", strerror(errno));
 226                 close(fd);
 227                 return NULL;
 228                 }
 229
 230         rc = g_new0(RemoteConnection, 1);
 231
 232         rc->server = TRUE;
 233         rc->fd = fd;
 234         rc->path = g_strdup(path);
 235
 236         channel = g_io_channel_unix_new(rc->fd);
 237         g_io_channel_set_flags(channel, G_IO_FLAG_NONBLOCK, NULL);
 238
 239         rc->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN,
 240                                              remote_server_read_cb, rc, NULL);
 241         g_io_channel_unref(channel);
 242
 243         return rc;
 244 }
 245
 246 static void remote_server_subscribe(RemoteConnection *rc, RemoteReadFunc *func, gpointer data)
 247 {
 248         if (!rc || !rc->server) return;
 249
 250         rc->read_func = func;
 251         rc->read_data = data;
 252 }
 253
 254
 255 static RemoteConnection *remote_client_open(const gchar *path)
 256 {
 257         RemoteConnection *rc;
 258         struct stat st;
 259         struct sockaddr_un addr;
 260         gint sun_path_len;
 261         gint fd;
 262
 263         if (stat(path, &st) != 0 || !S_ISSOCK(st.st_mode)) return NULL;
 264
 265         fd = socket(PF_UNIX, SOCK_STREAM, 0);
 266         if (fd == -1) return NULL;
 267
 268         addr.sun_family = AF_UNIX;
 269         sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
 270         strncpy(addr.sun_path, path, sun_path_len);
 271         if (connect(fd, &addr, sizeof(addr)) == -1)
 272                 {
 273                 DEBUG_1("error connecting to socket: %s", strerror(errno));
 274                 close(fd);
 275                 return NULL;
 276                 }
 277
 278         rc = g_new0(RemoteConnection, 1);
 279         rc->server = FALSE;
 280         rc->fd = fd;
 281         rc->path = g_strdup(path);
 282
 283         return rc;
 284 }
 285
 286 static sig_atomic_t sigpipe_occurred = FALSE;
 287
 288 static void sighandler_sigpipe(gint sig)
 289 {
 290         sigpipe_occurred = TRUE;
 291 }
 292
 293 static gboolean remote_client_send(RemoteConnection *rc, const gchar *text)
 294 {
 295         struct sigaction new_action, old_action;
 296         gboolean ret = FALSE;
 297         GError *error = NULL;
 298         GIOChannel *channel;
 299
 300         if (!rc || rc->server) return FALSE;
 301         if (!text) return TRUE;
 302
 303         sigpipe_occurred = FALSE;
 304
 305         new_action.sa_handler = sighandler_sigpipe;
 306         sigemptyset(&new_action.sa_mask);
 307         new_action.sa_flags = 0;
 308
 309         /* setup our signal handler */
 310         sigaction(SIGPIPE, &new_action, &old_action);
 311
 312         channel = g_io_channel_unix_new(rc->fd);
 313
 314         g_io_channel_write_chars(channel, text, -1, NULL, &error);
 315         g_io_channel_write_chars(channel, "\n", -1, NULL, &error);
 316         g_io_channel_flush(channel, &error);
 317
 318         if (error)
 319                 {
 320                 log_printf("error reading socket: %s\n", error->message);
 321                 g_error_free(error);
 322                 ret = FALSE;;
 323                 }
 324         else
 325                 {
 326                 ret = TRUE;
 327                 }
 328
 329         if (ret)
 330                 {
 331                 gchar *buffer = NULL;
 332                 gsize termpos;
 333                 while (g_io_channel_read_line(channel, &buffer, NULL, &termpos, &error) == G_IO_STATUS_NORMAL)
 334                         {
 335                         if (buffer)
 336                                 {
 337                                 if (buffer[0] == '\n') /* empty line finishes the command */
 338                                         {
 339                                         g_free(buffer);
 340                                         fflush(stdout);
 341                                         break;
 342                                         }
 343                                 buffer[termpos] = '\0';
 344                                 printf("%s\n", buffer);
 345                                 g_free(buffer);
 346                                 buffer = NULL;
 347                                 }
 348                         }
 349
 350                 if (error)
 351                         {
 352                         log_printf("error reading socket: %s\n", error->message);
 353                         g_error_free(error);
 354                         ret = FALSE;
 355                         }
 356                 }
 357
 358
 359         /* restore the original signal handler */
 360         sigaction(SIGPIPE, &old_action, NULL);
 361         g_io_channel_unref(channel);
 362         return ret;
 363 }
 364
 365 void remote_close(RemoteConnection *rc)
 366 {
 367         if (!rc) return;
 368
 369         if (rc->server)
 370                 {
 371                 remote_server_clients_close(rc);
 372
 373                 g_source_remove(rc->channel_id);
 374                 unlink(rc->path);
 375                 }
 376
 377         if (rc->read_data)
 378                 g_free(rc->read_data);
 379
 380         close(rc->fd);
 381
 382         g_free(rc->path);
 383         g_free(rc);
 384 }
 385
 386 /*
 387  *-----------------------------------------------------------------------------
 388  * remote functions
 389  *-----------------------------------------------------------------------------
 390  */
 391
 392 static void gr_image_next(const gchar *text, GIOChannel *channel, gpointer data)
 393 {
 394         layout_image_next(lw_id);
 395 }
 396
 397 static void gr_new_window(const gchar *text, GIOChannel *channel, gpointer data)
 398 {
 399         LayoutWindow *lw = NULL;
 400
 401         if (!layout_valid(&lw)) return;
 402
 403         lw_id = layout_menu_new_window(NULL, lw);
 404 }
 405
 406 static gboolean gr_close_window_cb()
 407 {
 408         if (!layout_valid(&lw_id)) return FALSE;
 409
 410         layout_menu_close_cb(NULL, lw_id);
 411
 412         return FALSE;
 413 }
 414
 415 static void gr_close_window(const gchar *text, GIOChannel *channel, gpointer data)
 416 {
 417         g_idle_add(gr_close_window_cb, NULL);
 418 }
 419
 420 static void gr_image_prev(const gchar *text, GIOChannel *channel, gpointer data)
 421 {
 422         layout_image_prev(lw_id);
 423 }
 424
 425 static void gr_image_first(const gchar *text, GIOChannel *channel, gpointer data)
 426 {
 427         layout_image_first(lw_id);
 428 }
 429
 430 static void gr_image_last(const gchar *text, GIOChannel *channel, gpointer data)
 431 {
 432         layout_image_last(lw_id);
 433 }
 434
 435 static void gr_fullscreen_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 436 {
 437         layout_image_full_screen_toggle(lw_id);
 438 }
 439
 440 static void gr_fullscreen_start(const gchar *text, GIOChannel *channel, gpointer data)
 441 {
 442         layout_image_full_screen_start(lw_id);
 443 }
 444
 445 static void gr_fullscreen_stop(const gchar *text, GIOChannel *channel, gpointer data)
 446 {
 447         layout_image_full_screen_stop(lw_id);
 448 }
 449
 450 static void gr_lw_id(const gchar *text, GIOChannel *channel, gpointer data)
 451 {
 452         lw_id = layout_find_by_layout_id(text);
 453         if (!lw_id)
 454                 {
 455                 log_printf("remote sent window ID that does not exist:\"%s\"\n",text);
 456                 }
 457         layout_valid(&lw_id);
 458 }
 459
 460 static void gr_slideshow_start_rec(const gchar *text, GIOChannel *channel, gpointer data)
 461 {
 462         GList *list;
 463         FileData *dir_fd = file_data_new_dir(text);
 464         list = filelist_recursive(dir_fd);
 465         file_data_unref(dir_fd);
 466         if (!list) return;
 467 //printf("length: %d\n", g_list_length(list));
 468         layout_image_slideshow_stop(lw_id);
 469         layout_image_slideshow_start_from_list(lw_id, list);
 470 }
 471
 472 static void gr_cache_thumb(const gchar *text, GIOChannel *channel, gpointer data)
 473 {
 474         if (!g_strcmp0(text, "clear"))
 475                 cache_maintain_home_remote(FALSE, TRUE);
 476         else if (!g_strcmp0(text, "clean"))
 477                 cache_maintain_home_remote(FALSE, FALSE);
 478 }
 479
 480 static void gr_cache_shared(const gchar *text, GIOChannel *channel, gpointer data)
 481 {
 482         if (!g_strcmp0(text, "clear"))
 483                 cache_manager_standard_process_remote(TRUE);
 484         else if (!g_strcmp0(text, "clean"))
 485                 cache_manager_standard_process_remote(FALSE);
 486 }
 487
 488 static void gr_cache_metadata(const gchar *text, GIOChannel *channel, gpointer data)
 489 {
 490         cache_maintain_home_remote(TRUE, FALSE);
 491 }
 492
 493 static void gr_cache_render(const gchar *text, GIOChannel *channel, gpointer data)
 494 {
 495         cache_manager_render_remote(text, FALSE, FALSE);
 496 }
 497
 498 static void gr_cache_render_recurse(const gchar *text, GIOChannel *channel, gpointer data)
 499 {
 500         cache_manager_render_remote(text, TRUE, FALSE);
 501 }
 502
 503 static void gr_cache_render_standard(const gchar *text, GIOChannel *channel, gpointer data)
 504 {
 505         if(options->thumbnails.spec_standard)
 506                 cache_manager_render_remote(text, FALSE, TRUE);
 507 }
 508
 509 static void gr_cache_render_standard_recurse(const gchar *text, GIOChannel *channel, gpointer data)
 510 {
 511         if(options->thumbnails.spec_standard)
 512                 cache_manager_render_remote(text, TRUE, TRUE);
 513 }
 514
 515 static void gr_slideshow_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 516 {
 517         layout_image_slideshow_toggle(lw_id);
 518 }
 519
 520 static void gr_slideshow_start(const gchar *text, GIOChannel *channel, gpointer data)
 521 {
 522         layout_image_slideshow_start(lw_id);
 523 }
 524
 525 static void gr_slideshow_stop(const gchar *text, GIOChannel *channel, gpointer data)
 526 {
 527         layout_image_slideshow_stop(lw_id);
 528 }
 529
 530 static void gr_slideshow_delay(const gchar *text, GIOChannel *channel, gpointer data)
 531 {
 532         gdouble t1, t2, t3, n;
 533         gint res;
 534
 535         res = sscanf(text, "%lf:%lf:%lf", &t1, &t2, &t3);
 536         if (res == 3)
 537                 {
 538                 n = (t1 * 3600) + (t2 * 60) + t3;
 539                 if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS ||
 540                                 t1 >= 24 || t2 >= 60 || t3 >= 60)
 541                         {
 542                         printf_term(TRUE, "Remote slideshow delay out of range (%.1f to %.1f)\n",
 543                                                                 SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
 544                         return;
 545                         }
 546                 }
 547         else if (res == 2)
 548                 {
 549                 n = t1 * 60 + t2;
 550                 if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS ||
 551                                 t1 >= 60 || t2 >= 60)
 552                         {
 553                         printf_term(TRUE, "Remote slideshow delay out of range (%.1f to %.1f)\n",
 554                                                                 SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
 555                         return;
 556                         }
 557                 }
 558         else if (res == 1)
 559                 {
 560                 n = t1;
 561                 if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS)
 562                         {
 563                         printf_term(TRUE, "Remote slideshow delay out of range (%.1f to %.1f)\n",
 564                                                                 SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
 565                         return;
 566                         }
 567                 }
 568         else
 569                 {
 570                 n = 0;
 571                 }
 572
 573         options->slideshow.delay = (gint)(n * 10.0 + 0.01);
 574 }
 575
 576 static void gr_tools_show(const gchar *text, GIOChannel *channel, gpointer data)
 577 {
 578         gboolean popped;
 579         gboolean hidden;
 580
 581         if (layout_tools_float_get(lw_id, &popped, &hidden) && hidden)
 582                 {
 583                 layout_tools_float_set(lw_id, popped, FALSE);
 584                 }
 585 }
 586
 587 static void gr_tools_hide(const gchar *text, GIOChannel *channel, gpointer data)
 588 {
 589         gboolean popped;
 590         gboolean hidden;
 591
 592         if (layout_tools_float_get(lw_id, &popped, &hidden) && !hidden)
 593                 {
 594                 layout_tools_float_set(lw_id, popped, TRUE);
 595                 }
 596 }
 597
 598 static gboolean gr_quit_idle_cb(gpointer data)
 599 {
 600         exit_program();
 601
 602         return FALSE;
 603 }
 604
 605 static void gr_quit(const gchar *text, GIOChannel *channel, gpointer data)
 606 {
 607         /* schedule exit when idle, if done from within a
 608          * remote handler remote_close will crash
 609          */
 610         g_idle_add(gr_quit_idle_cb, NULL);
 611 }
 612
 613 static void gr_file_load_no_raise(const gchar *text, GIOChannel *channel, gpointer data)
 614 {
 615         gchar *filename = expand_tilde(text);
 616
 617         if (isfile(filename))
 618                 {
 619                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
 620                         {
 621                         collection_window_new(filename);
 622                         }
 623                 else
 624                         {
 625                         layout_set_path(lw_id, filename);
 626                         }
 627                 }
 628         else if (isdir(filename))
 629                 {
 630                 layout_set_path(lw_id, filename);
 631                 }
 632         else
 633                 {
 634                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 635                 layout_set_path(lw_id, homedir());
 636                 }
 637
 638         g_free(filename);
 639 }
 640
 641 static void gr_file_load(const gchar *text, GIOChannel *channel, gpointer data)
 642 {
 643         gr_file_load_no_raise(text, channel, data);
 644
 645         gr_raise(text, channel, data);
 646 }
 647
 648 static void gr_pixel_info(const gchar *text, GIOChannel *channel, gpointer data)
 649 {
 650         gchar *pixel_info;
 651         gint x_pixel, y_pixel;
 652         gint width, height;
 653         gint r_mouse, g_mouse, b_mouse;
 654         PixbufRenderer *pr;
 655         LayoutWindow *lw = NULL;
 656
 657         if (!layout_valid(&lw_id)) return;
 658
 659         pr = (PixbufRenderer*)lw_id->image->pr;
 660
 661         if (pr)
 662                 {
 663                 pixbuf_renderer_get_image_size(pr, &width, &height);
 664                 if (width < 1 || height < 1) return;
 665
 666                 pixbuf_renderer_get_mouse_position(pr, &x_pixel, &y_pixel);
 667
 668                 if (x_pixel >= 0 && y_pixel >= 0)
 669                         {
 670                         pixbuf_renderer_get_pixel_colors(pr, x_pixel, y_pixel,
 671                                                          &r_mouse, &g_mouse, &b_mouse);
 672
 673                         pixel_info = g_strdup_printf(_("[%d,%d]: RGB(%3d,%3d,%3d)"),
 674                                                  x_pixel, y_pixel,
 675                                                  r_mouse, g_mouse, b_mouse);
 676
 677                         g_io_channel_write_chars(channel, pixel_info, -1, NULL, NULL);
 678                         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 679
 680                         g_free(pixel_info);
 681                         }
 682                 else
 683                         {
 684                         return;
 685                         }
 686                 }
 687         else
 688                 {
 689                 return;
 690                 }
 691 }
 692
 693 static void gr_rectangle(const gchar *text, GIOChannel *channel, gpointer data)
 694 {
 695         gchar *rectangle_info;
 696         PixbufRenderer *pr;
 697         LayoutWindow *lw = NULL;
 698         gint x1, y1, x2, y2;
 699
 700         if (!options->draw_rectangle) return;
 701         if (!layout_valid(&lw_id)) return;
 702
 703         pr = (PixbufRenderer*)lw_id->image->pr;
 704
 705         if (pr)
 706                 {
 707                 image_get_rectangle(&x1, &y1, &x2, &y2);
 708                 rectangle_info = g_strdup_printf(_("%dx%d+%d+%d"),
 709                                         (x2 > x1) ? x2 - x1 : x1 - x2,
 710                                         (y2 > y1) ? y2 - y1 : y1 - y2,
 711                                         (x2 > x1) ? x1 : x2,
 712                                         (y2 > y1) ? y1 : y2);
 713
 714                 g_io_channel_write_chars(channel, rectangle_info, -1, NULL, NULL);
 715                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 716
 717                 g_free(rectangle_info);
 718                 }
 719 }
 720
 721 static void gr_file_tell(const gchar *text, GIOChannel *channel, gpointer data)
 722 {
 723         if (!layout_valid(&lw_id)) return;
 724
 725         if (image_get_path(lw_id->image))
 726                 {
 727                 g_io_channel_write_chars(channel, image_get_path(lw_id->image), -1, NULL, NULL);
 728                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 729                 }
 730 }
 731
 732 static void gr_config_load(const gchar *text, GIOChannel *channel, gpointer data)
 733 {
 734         gchar *filename = expand_tilde(text);
 735
 736         if (isfile(filename))
 737                 {
 738                 load_config_from_file(filename, FALSE);
 739                 }
 740         else
 741                 {
 742                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 743                 layout_set_path(NULL, homedir());
 744                 }
 745
 746         g_free(filename);
 747 }
 748
 749 static void gr_get_sidecars(const gchar *text, GIOChannel *channel, gpointer data)
 750 {
 751         gchar *filename = expand_tilde(text);
 752         FileData *fd = file_data_new_group(filename);
 753
 754         GList *work;
 755         if (fd->parent) fd = fd->parent;
 756
 757         g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 758         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 759
 760         work = fd->sidecar_files;
 761
 762         while (work)
 763                 {
 764                 fd = work->data;
 765                 work = work->next;
 766                 g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 767                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 768                 }
 769         g_free(filename);
 770 }
 771
 772 static void gr_get_destination(const gchar *text, GIOChannel *channel, gpointer data)
 773 {
 774         gchar *filename = expand_tilde(text);
 775         FileData *fd = file_data_new_group(filename);
 776
 777         if (fd->change && fd->change->dest)
 778                 {
 779                 g_io_channel_write_chars(channel, fd->change->dest, -1, NULL, NULL);
 780                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 781                 }
 782         g_free(filename);
 783 }
 784
 785 static void gr_file_view(const gchar *text, GIOChannel *channel, gpointer data)
 786 {
 787         gchar *filename = expand_tilde(text);
 788
 789         view_window_new(file_data_new_group(filename));
 790         g_free(filename);
 791 }
 792
 793 static void gr_list_clear(const gchar *text, GIOChannel *channel, gpointer data)
 794 {
 795         RemoteData *remote_data = data;
 796
 797         if (remote_data->command_collection)
 798                 {
 799                 collection_unref(remote_data->command_collection);
 800                 remote_data->command_collection = NULL;
 801                 }
 802 }
 803
 804 static void gr_list_add(const gchar *text, GIOChannel *channel, gpointer data)
 805 {
 806         RemoteData *remote_data = data;
 807         gboolean new = TRUE;
 808
 809         if (!remote_data->command_collection)
 810                 {
 811                 CollectionData *cd;
 812
 813                 cd = collection_new("");
 814
 815                 g_free(cd->path);
 816                 cd->path = NULL;
 817                 g_free(cd->name);
 818                 cd->name = g_strdup(_("Command line"));
 819
 820                 remote_data->command_collection = cd;
 821                 }
 822         else
 823                 {
 824                 new = (!collection_get_first(remote_data->command_collection));
 825                 }
 826
 827         if (collection_add(remote_data->command_collection, file_data_new_group(text), FALSE) && new)
 828                 {
 829                 layout_image_set_collection(NULL, remote_data->command_collection,
 830                                             collection_get_first(remote_data->command_collection));
 831                 }
 832 }
 833
 834 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data)
 835 {
 836         LayoutWindow *lw = NULL;
 837
 838         if (layout_valid(&lw_id))
 839                 {
 840                 gtk_window_present(GTK_WINDOW(lw_id->window));
 841                 }
 842 }
 843
 844 #ifdef HAVE_LUA
 845 static void gr_lua(const gchar *text, GIOChannel *channel, gpointer data)
 846 {
 847         gchar *result = NULL;
 848         gchar **lua_command;
 849
 850         lua_command = g_strsplit(text, ",", 2);
 851
 852         if (lua_command[0] && lua_command[1])
 853                 {
 854                 FileData *fd = file_data_new_group(lua_command[0]);
 855                 result = g_strdup(lua_callvalue(fd, lua_command[1], NULL));
 856                 if (result)
 857                         {
 858                         g_io_channel_write_chars(channel, result, -1, NULL, NULL);
 859                         }
 860                 else
 861                         {
 862                         g_io_channel_write_chars(channel, N_("lua error: no data"), -1, NULL, NULL);
 863                         }
 864                 }
 865         else
 866                 {
 867                 g_io_channel_write_chars(channel, N_("lua error: no data"), -1, NULL, NULL);
 868                 }
 869
 870         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 871
 872         g_strfreev(lua_command);
 873         g_free(result);
 874 }
 875 #endif
 876
 877 typedef struct _RemoteCommandEntry RemoteCommandEntry;
 878 struct _RemoteCommandEntry {
 879         gchar *opt_s;
 880         gchar *opt_l;
 881         void (*func)(const gchar *text, GIOChannel *channel, gpointer data);
 882         gboolean needs_extra;
 883         gboolean prefer_command_line;
 884         gchar *parameter;
 885         gchar *description;
 886 };
 887
 888 static RemoteCommandEntry remote_commands[] = {
 889         /* short, long                  callback,               extra, prefer, parameter, description */
 890         { "-n", "--next",               gr_image_next,          FALSE, FALSE, NULL, N_("next image") },
 891         { "-b", "--back",               gr_image_prev,          FALSE, FALSE, NULL, N_("previous image") },
 892         { NULL, "--first",              gr_image_first,         FALSE, FALSE, NULL, N_("first image") },
 893         { NULL, "--last",               gr_image_last,          FALSE, FALSE, NULL, N_("last image") },
 894         { "-f", "--fullscreen",         gr_fullscreen_toggle,   FALSE, TRUE,  NULL, N_("toggle full screen") },
 895         { "-fs","--fullscreen-start",   gr_fullscreen_start,    FALSE, FALSE, NULL, N_("start full screen") },
 896         { "-fS","--fullscreen-stop",    gr_fullscreen_stop,     FALSE, FALSE, NULL, N_("stop full screen") },
 897         { "-s", "--slideshow",          gr_slideshow_toggle,    FALSE, TRUE,  NULL, N_("toggle slide show") },
 898         { "-ss","--slideshow-start",    gr_slideshow_start,     FALSE, FALSE, NULL, N_("start slide show") },
 899         { "-sS","--slideshow-stop",     gr_slideshow_stop,      FALSE, FALSE, NULL, N_("stop slide show") },
 900         { NULL, "--slideshow-recurse:", gr_slideshow_start_rec, TRUE,  FALSE, N_("<FOLDER>"), N_("start recursive slide show in FOLDER") },
 901         { "-d", "--delay=",             gr_slideshow_delay,     TRUE,  FALSE, N_("<[H:][M:][N][.M]>"), N_("set slide show delay to Hrs Mins N.M seconds") },
 902         { "+t", "--tools-show",         gr_tools_show,          FALSE, TRUE,  NULL, N_("show tools") },
 903         { "-t", "--tools-hide",         gr_tools_hide,          FALSE, TRUE,  NULL, N_("hide tools") },
 904         { "-q", "--quit",               gr_quit,                FALSE, FALSE, NULL, N_("quit") },
 905         { NULL, "--config-load:",       gr_config_load,         TRUE,  FALSE, N_("<FILE>"), N_("load configuration from FILE") },
 906         { NULL, "--get-sidecars:",      gr_get_sidecars,        TRUE,  FALSE, N_("<FILE>"), N_("get list of sidecars of FILE") },
 907         { NULL, "--get-destination:",   gr_get_destination,     TRUE,  FALSE, N_("<FILE>"), N_("get destination path of FILE") },
 908         { NULL, "file:",                gr_file_load,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE, bring Geeqie window to the top") },
 909         { NULL, "File:",                gr_file_load_no_raise,  TRUE,  FALSE, N_("<FILE>"), N_("open FILE, do not bring Geeqie window to the top") },
 910         { NULL, "--tell",               gr_file_tell,           FALSE, FALSE, NULL, N_("print filename of current image") },
 911         { NULL, "--pixel-info",         gr_pixel_info,          FALSE, FALSE, NULL, N_("print pixel info of mouse pointer on current image") },
 912         { NULL, "--get-rectangle",      gr_rectangle,           FALSE, FALSE, NULL, N_("get rectangle co-ordinates") },
 913         { NULL, "view:",                gr_file_view,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE in new window") },
 914         { NULL, "--list-clear",         gr_list_clear,          FALSE, FALSE, NULL, N_("clear command line collection list") },
 915         { NULL, "--list-add:",          gr_list_add,            TRUE,  FALSE, N_("<FILE>"), N_("add FILE to command line collection list") },
 916         { NULL, "raise",                gr_raise,               FALSE, FALSE, NULL, N_("bring the Geeqie window to the top") },
 917         { NULL, "--id:",                gr_lw_id,               TRUE, FALSE, N_("<ID>"), N_("window id for following commands") },
 918         { NULL, "--new-window",         gr_new_window,          FALSE, FALSE, NULL, N_("new window") },
 919         { NULL, "--close-window",       gr_close_window,        FALSE, FALSE, NULL, N_("close window") },
 920         { "-ct:", "--cache-thumbs:",    gr_cache_thumb,         TRUE, FALSE, N_("clear|clean"), N_("clear or clean thumbnail cache") },
 921         { "-cs:", "--cache-shared:",    gr_cache_shared,        TRUE, FALSE, N_("clear|clean"), N_("clear or clean shared thumbnail cache") },
 922         { "-cm","--cache-metadata",      gr_cache_metadata,               FALSE, FALSE, NULL, N_("    clean the metadata cache") },
 923         { "-cr:", "--cache-render:",    gr_cache_render,        TRUE, FALSE, N_("<folder>  "), N_(" render thumbnails") },
 924         { "-crr:", "--cache-render-recurse:", gr_cache_render_recurse, TRUE, FALSE, N_("<folder> "), N_("render thumbnails recursively") },
 925         { "-crs:", "--cache-render-shared:", gr_cache_render_standard, TRUE, FALSE, N_("<folder> "), N_(" render thumbnails (see Help)") },
 926         { "-crsr:", "--cache-render-shared-recurse:", gr_cache_render_standard_recurse, TRUE, FALSE, N_("<folder>"), N_(" render thumbnails recursively (see Help)") },
 927 #ifdef HAVE_LUA
 928         { NULL, "--lua:",               gr_lua,                 TRUE, FALSE, N_("<FILE>,<lua script>"), N_("run lua script on FILE") },
 929 #endif
 930         { NULL, NULL, NULL, FALSE, FALSE, NULL, NULL }
 931 };
 932
 933 static RemoteCommandEntry *remote_command_find(const gchar *text, const gchar **offset)
 934 {
 935         gboolean match = FALSE;
 936         gint i;
 937
 938         i = 0;
 939         while (!match && remote_commands[i].func != NULL)
 940                 {
 941                 if (remote_commands[i].needs_extra)
 942                         {
 943                         if (remote_commands[i].opt_s &&
 944                             strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
 945                                 {
 946                                 if (offset) *offset = text + strlen(remote_commands[i].opt_s);
 947                                 return &remote_commands[i];
 948                                 }
 949                         else if (remote_commands[i].opt_l &&
 950                                  strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
 951                                 {
 952                                 if (offset) *offset = text + strlen(remote_commands[i].opt_l);
 953                                 return &remote_commands[i];
 954                                 }
 955                         }
 956                 else
 957                         {
 958                         if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
 959                             (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
 960                                 {
 961                                 if (offset) *offset = text;
 962                                 return &remote_commands[i];
 963                                 }
 964                         }
 965
 966                 i++;
 967                 }
 968
 969         return NULL;
 970 }
 971
 972 static void remote_cb(RemoteConnection *rc, const gchar *text, GIOChannel *channel, gpointer data)
 973 {
 974         RemoteCommandEntry *entry;
 975         const gchar *offset;
 976
 977         entry = remote_command_find(text, &offset);
 978         if (entry && entry->func)
 979                 {
 980                 entry->func(offset, channel, data);
 981                 }
 982         else
 983                 {
 984                 log_printf("unknown remote command:%s\n", text);
 985                 }
 986 }
 987
 988 void remote_help(void)
 989 {
 990         gint i;
 991         gchar *s_opt_param;
 992         gchar *l_opt_param;
 993
 994         print_term(FALSE, _("Remote command list:\n"));
 995
 996         i = 0;
 997         while (remote_commands[i].func != NULL)
 998                 {
 999                 if (remote_commands[i].description)
1000                         {
1001                         s_opt_param = g_strconcat(remote_commands[i].opt_s, remote_commands[i].parameter, NULL);
1002                         l_opt_param = g_strconcat(remote_commands[i].opt_l, remote_commands[i].parameter, NULL);
1003                         printf_term(FALSE, "  %-11s%-1s %-30s%-s\n",
1004                                     (remote_commands[i].opt_s) ? s_opt_param : "",
1005                                     (remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
1006                                     (remote_commands[i].opt_l) ? l_opt_param : "",
1007                                     _(remote_commands[i].description));
1008                         g_free(s_opt_param);
1009                         g_free(l_opt_param);
1010                         }
1011                 i++;
1012                 }
1013         printf_term(FALSE, N_("\n  All other command line parameters are used as plain files if they exists.\n"));
1014 }
1015
1016 GList *remote_build_list(GList *list, gint argc, gchar *argv[], GList **errors)
1017 {
1018         gint i;
1019
1020         i = 1;
1021         while (i < argc)
1022                 {
1023                 RemoteCommandEntry *entry;
1024
1025                 entry = remote_command_find(argv[i], NULL);
1026                 if (entry)
1027                         {
1028                         list = g_list_append(list, argv[i]);
1029                         }
1030                 else if (errors && !isfile(argv[i]))
1031                         {
1032                         *errors = g_list_append(*errors, argv[i]);
1033                         }
1034                 i++;
1035                 }
1036
1037         return list;
1038 }
1039
1040 /**
1041  * \param arg_exec Binary (argv0)
1042  * \param remote_list Evaluated and recognized remote commands
1043  * \param path The current path
1044  * \param cmd_list List of all non collections in Path
1045  * \param collection_list List of all collections in argv
1046  */
1047 void remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
1048                     GList *cmd_list, GList *collection_list)
1049 {
1050         RemoteConnection *rc;
1051         gboolean started = FALSE;
1052         gchar *buf;
1053
1054         buf = g_build_filename(get_rc_dir(), ".command", NULL);
1055         rc = remote_client_open(buf);
1056         if (!rc)
1057                 {
1058                 GString *command;
1059                 GList *work;
1060                 gint retry_count = 12;
1061                 gboolean blank = FALSE;
1062
1063                 printf_term(FALSE, _("Remote %s not running, starting..."), GQ_APPNAME);
1064
1065                 command = g_string_new(arg_exec);
1066
1067                 work = remote_list;
1068                 while (work)
1069                         {
1070                         gchar *text;
1071                         RemoteCommandEntry *entry;
1072
1073                         text = work->data;
1074                         work = work->next;
1075
1076                         entry = remote_command_find(text, NULL);
1077                         if (entry)
1078                                 {
1079                                 if (entry->prefer_command_line)
1080                                         {
1081                                         remote_list = g_list_remove(remote_list, text);
1082                                         g_string_append(command, " ");
1083                                         g_string_append(command, text);
1084                                         }
1085                                 if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
1086                                         {
1087                                         blank = TRUE;
1088                                         }
1089                                 }
1090                         }
1091
1092                 if (blank || cmd_list || path) g_string_append(command, " --blank");
1093                 if (get_debug_level()) g_string_append(command, " --debug");
1094
1095                 g_string_append(command, " &");
1096                 runcmd(command->str);
1097                 g_string_free(command, TRUE);
1098
1099                 while (!rc && retry_count > 0)
1100                         {
1101                         usleep((retry_count > 10) ? 500000 : 1000000);
1102                         rc = remote_client_open(buf);
1103                         if (!rc) print_term(FALSE, ".");
1104                         retry_count--;
1105                         }
1106
1107                 print_term(FALSE, "\n");
1108
1109                 started = TRUE;
1110                 }
1111         g_free(buf);
1112
1113         if (rc)
1114                 {
1115                 GList *work;
1116                 const gchar *prefix;
1117                 gboolean use_path = TRUE;
1118                 gboolean sent = FALSE;
1119
1120                 work = remote_list;
1121                 while (work)
1122                         {
1123                         gchar *text;
1124                         RemoteCommandEntry *entry;
1125
1126                         text = work->data;
1127                         work = work->next;
1128
1129                         entry = remote_command_find(text, NULL);
1130                         if (entry &&
1131                             entry->opt_l &&
1132                             strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;
1133
1134                         remote_client_send(rc, text);
1135
1136                         sent = TRUE;
1137                         }
1138
1139                 if (cmd_list && cmd_list->next)
1140                         {
1141                         prefix = "--list-add:";
1142                         remote_client_send(rc, "--list-clear");
1143                         }
1144                 else
1145                         {
1146                         prefix = "file:";
1147                         }
1148
1149                 work = cmd_list;
1150                 while (work)
1151                         {
1152                         FileData *fd;
1153                         gchar *text;
1154
1155                         fd = work->data;
1156                         work = work->next;
1157
1158                         text = g_strconcat(prefix, fd->path, NULL);
1159                         remote_client_send(rc, text);
1160                         g_free(text);
1161
1162                         sent = TRUE;
1163                         }
1164
1165                 if (path && !cmd_list && use_path)
1166                         {
1167                         gchar *text;
1168
1169                         text = g_strdup_printf("file:%s", path);
1170                         remote_client_send(rc, text);
1171                         g_free(text);
1172
1173                         sent = TRUE;
1174                         }
1175
1176                 work = collection_list;
1177                 while (work)
1178                         {
1179                         const gchar *name;
1180                         gchar *text;
1181
1182                         name = work->data;
1183                         work = work->next;
1184
1185                         text = g_strdup_printf("file:%s", name);
1186                         remote_client_send(rc, text);
1187                         g_free(text);
1188
1189                         sent = TRUE;
1190                         }
1191
1192                 if (!started && !sent)
1193                         {
1194                         remote_client_send(rc, "raise");
1195                         }
1196                 }
1197         else
1198                 {
1199                 print_term(TRUE, _("Remote not available\n"));
1200                 }
1201
1202         _exit(0);
1203 }
1204
1205 RemoteConnection *remote_server_init(gchar *path, CollectionData *command_collection)
1206 {
1207         RemoteConnection *remote_connection = remote_server_open(path);
1208         RemoteData *remote_data = g_new(RemoteData, 1);
1209
1210         remote_data->command_collection = command_collection;
1211
1212         remote_server_subscribe(remote_connection, remote_cb, remote_data);
1213         return remote_connection;
1214 }
1215 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */