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