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