src/remote.c

   1 /*
   2  * Geeqie
   3  * (C) 2004 John Ellis
   4  * Copyright (C) 2008 - 2012 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  *
   8  * This software is released under the GNU General Public License (GNU GPL).
   9  * Please read the included file COPYING for more information.
  10  * This software comes with no warranty of any kind, use at your own risk!
  11  */
  12
  13
  14 #include "main.h"
  15 #include "remote.h"
  16
  17 #include "collect.h"
  18 #include "filedata.h"
  19 #include "img-view.h"
  20 #include "layout.h"
  21 #include "layout_image.h"
  22 #include "misc.h"
  23 #include "slideshow.h"
  24 #include "ui_fileops.h"
  25 #include "rcfile.h"
  26
  27 #include <sys/socket.h>
  28 #include <sys/un.h>
  29 #include <signal.h>
  30 #include <errno.h>
  31
  32
  33 #define SERVER_MAX_CLIENTS 8
  34
  35 #define REMOTE_SERVER_BACKLOG 4
  36
  37
  38 #ifndef UNIX_PATH_MAX
  39 #define UNIX_PATH_MAX 108
  40 #endif
  41
  42
  43 static RemoteConnection *remote_client_open(const gchar *path);
  44 static gint remote_client_send(RemoteConnection *rc, const gchar *text);
  45
  46
  47 typedef struct _RemoteClient RemoteClient;
  48 struct _RemoteClient {
  49         gint fd;
  50         guint channel_id; /* event source id */
  51         RemoteConnection *rc;
  52 };
  53
  54 typedef struct _RemoteData RemoteData;
  55 struct _RemoteData {
  56         CollectionData *command_collection;
  57 };
  58
  59
  60 static gboolean remote_server_client_cb(GIOChannel *source, GIOCondition condition, gpointer data)
  61 {
  62         RemoteClient *client = data;
  63         RemoteConnection *rc;
  64         GIOStatus status = G_IO_STATUS_NORMAL;
  65
  66         rc = client->rc;
  67
  68         if (condition & G_IO_IN)
  69                 {
  70                 gchar *buffer = NULL;
  71                 GError *error = NULL;
  72                 gsize termpos;
  73
  74                 while ((status = g_io_channel_read_line(source, &buffer, NULL, &termpos, &error)) == G_IO_STATUS_NORMAL)
  75                         {
  76                         if (buffer)
  77                                 {
  78                                 buffer[termpos] = '\0';
  79
  80                                 if (strlen(buffer) > 0)
  81                                         {
  82                                         if (rc->read_func) rc->read_func(rc, buffer, source, rc->read_data);
  83                                         g_io_channel_write_chars(source, "\n", -1, NULL, NULL); /* empty line finishes the command */
  84                                         g_io_channel_flush(source, NULL);
  85                                         }
  86                                 g_free(buffer);
  87
  88                                 buffer = NULL;
  89                                 }
  90                         }
  91
  92                 if (error)
  93                         {
  94                         log_printf("error reading socket: %s\n", error->message);
  95                         g_error_free(error);
  96                         }
  97                 }
  98
  99         if (condition & G_IO_HUP || status == G_IO_STATUS_EOF || status == G_IO_STATUS_ERROR)
 100                 {
 101                 rc->clients = g_list_remove(rc->clients, client);
 102
 103                 DEBUG_1("HUP detected, closing client.");
 104                 DEBUG_1("client count %d", g_list_length(rc->clients));
 105
 106                 g_source_remove(client->channel_id);
 107                 close(client->fd);
 108                 g_free(client);
 109                 }
 110
 111         return TRUE;
 112 }
 113
 114 static void remote_server_client_add(RemoteConnection *rc, gint fd)
 115 {
 116         RemoteClient *client;
 117         GIOChannel *channel;
 118
 119         if (g_list_length(rc->clients) > SERVER_MAX_CLIENTS)
 120                 {
 121                 log_printf("maximum remote clients of %d exceeded, closing connection\n", SERVER_MAX_CLIENTS);
 122                 close(fd);
 123                 return;
 124                 }
 125
 126         client = g_new0(RemoteClient, 1);
 127         client->rc = rc;
 128         client->fd = fd;
 129
 130         channel = g_io_channel_unix_new(fd);
 131         client->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN | G_IO_HUP,
 132                                                  remote_server_client_cb, client, NULL);
 133         g_io_channel_unref(channel);
 134
 135         rc->clients = g_list_append(rc->clients, client);
 136         DEBUG_1("client count %d", g_list_length(rc->clients));
 137 }
 138
 139 static void remote_server_clients_close(RemoteConnection *rc)
 140 {
 141         while (rc->clients)
 142                 {
 143                 RemoteClient *client = rc->clients->data;
 144
 145                 rc->clients = g_list_remove(rc->clients, client);
 146
 147                 g_source_remove(client->channel_id);
 148                 close(client->fd);
 149                 g_free(client);
 150                 }
 151 }
 152
 153 static gboolean remote_server_read_cb(GIOChannel *source, GIOCondition condition, gpointer data)
 154 {
 155         RemoteConnection *rc = data;
 156         gint fd;
 157         guint alen;
 158
 159         fd = accept(rc->fd, NULL, &alen);
 160         if (fd == -1)
 161                 {
 162                 log_printf("error accepting socket: %s\n", strerror(errno));
 163                 return TRUE;
 164                 }
 165
 166         remote_server_client_add(rc, fd);
 167
 168         return TRUE;
 169 }
 170
 171 static gboolean remote_server_exists(const gchar *path)
 172 {
 173         RemoteConnection *rc;
 174
 175         /* verify server up */
 176         rc = remote_client_open(path);
 177         remote_close(rc);
 178
 179         if (rc) return TRUE;
 180
 181         /* unable to connect, remove socket file to free up address */
 182         unlink(path);
 183         return FALSE;
 184 }
 185
 186 static RemoteConnection *remote_server_open(const gchar *path)
 187 {
 188         RemoteConnection *rc;
 189         struct sockaddr_un addr;
 190         gint sun_path_len;
 191         gint fd;
 192         GIOChannel *channel;
 193
 194         if (remote_server_exists(path))
 195                 {
 196                 log_printf("Address already in use: %s\n", path);
 197                 return NULL;
 198                 }
 199
 200         fd = socket(PF_UNIX, SOCK_STREAM, 0);
 201         if (fd == -1) return NULL;
 202
 203         addr.sun_family = AF_UNIX;
 204         sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
 205         strncpy(addr.sun_path, path, sun_path_len);
 206         if (bind(fd, &addr, sizeof(addr)) == -1 ||
 207             listen(fd, REMOTE_SERVER_BACKLOG) == -1)
 208                 {
 209                 log_printf("error subscribing to socket: %s\n", strerror(errno));
 210                 close(fd);
 211                 return NULL;
 212                 }
 213
 214         rc = g_new0(RemoteConnection, 1);
 215
 216         rc->server = TRUE;
 217         rc->fd = fd;
 218         rc->path = g_strdup(path);
 219
 220         channel = g_io_channel_unix_new(rc->fd);
 221         g_io_channel_set_flags(channel, G_IO_FLAG_NONBLOCK, NULL);
 222
 223         rc->channel_id = g_io_add_watch_full(channel, G_PRIORITY_DEFAULT, G_IO_IN,
 224                                              remote_server_read_cb, rc, NULL);
 225         g_io_channel_unref(channel);
 226
 227         return rc;
 228 }
 229
 230 static void remote_server_subscribe(RemoteConnection *rc, RemoteReadFunc *func, gpointer data)
 231 {
 232         if (!rc || !rc->server) return;
 233
 234         rc->read_func = func;
 235         rc->read_data = data;
 236 }
 237
 238
 239 static RemoteConnection *remote_client_open(const gchar *path)
 240 {
 241         RemoteConnection *rc;
 242         struct stat st;
 243         struct sockaddr_un addr;
 244         gint sun_path_len;
 245         gint fd;
 246
 247         if (stat(path, &st) != 0 || !S_ISSOCK(st.st_mode)) return NULL;
 248
 249         fd = socket(PF_UNIX, SOCK_STREAM, 0);
 250         if (fd == -1) return NULL;
 251
 252         addr.sun_family = AF_UNIX;
 253         sun_path_len = MIN(strlen(path) + 1, UNIX_PATH_MAX);
 254         strncpy(addr.sun_path, path, sun_path_len);
 255         if (connect(fd, &addr, sizeof(addr)) == -1)
 256                 {
 257                 DEBUG_1("error connecting to socket: %s", strerror(errno));
 258                 close(fd);
 259                 return NULL;
 260                 }
 261
 262         rc = g_new0(RemoteConnection, 1);
 263         rc->server = FALSE;
 264         rc->fd = fd;
 265         rc->path = g_strdup(path);
 266
 267         return rc;
 268 }
 269
 270 static sig_atomic_t sigpipe_occured = FALSE;
 271
 272 static void sighandler_sigpipe(gint sig)
 273 {
 274         sigpipe_occured = TRUE;
 275 }
 276
 277 static gboolean remote_client_send(RemoteConnection *rc, const gchar *text)
 278 {
 279         struct sigaction new_action, old_action;
 280         gboolean ret = FALSE;
 281         GError *error = NULL;
 282         GIOChannel *channel;
 283
 284         if (!rc || rc->server) return FALSE;
 285         if (!text) return TRUE;
 286
 287         sigpipe_occured = FALSE;
 288
 289         new_action.sa_handler = sighandler_sigpipe;
 290         sigemptyset(&new_action.sa_mask);
 291         new_action.sa_flags = 0;
 292
 293         /* setup our signal handler */
 294         sigaction(SIGPIPE, &new_action, &old_action);
 295
 296         channel = g_io_channel_unix_new(rc->fd);
 297
 298         g_io_channel_write_chars(channel, text, -1, NULL, &error);
 299         g_io_channel_write_chars(channel, "\n", -1, NULL, &error);
 300         g_io_channel_flush(channel, &error);
 301
 302         if (error)
 303                 {
 304                 log_printf("error reading socket: %s\n", error->message);
 305                 g_error_free(error);
 306                 ret = FALSE;;
 307                 }
 308         else
 309                 {
 310                 ret = TRUE;
 311                 }
 312
 313         if (ret)
 314                 {
 315                 gchar *buffer = NULL;
 316                 gsize termpos;
 317                 while (g_io_channel_read_line(channel, &buffer, NULL, &termpos, &error) == G_IO_STATUS_NORMAL)
 318                         {
 319                         if (buffer)
 320                                 {
 321                                 if (buffer[0] == '\n') /* empty line finishes the command */
 322                                         {
 323                                         g_free(buffer);
 324                                         fflush(stdout);
 325                                         break;
 326                                         }
 327                                 buffer[termpos] = '\0';
 328                                 printf("%s\n", buffer);
 329                                 g_free(buffer);
 330                                 buffer = NULL;
 331                                 }
 332                         }
 333
 334                 if (error)
 335                         {
 336                         log_printf("error reading socket: %s\n", error->message);
 337                         g_error_free(error);
 338                         ret = FALSE;
 339                         }
 340                 }
 341
 342
 343         /* restore the original signal handler */
 344         sigaction(SIGPIPE, &old_action, NULL);
 345         g_io_channel_unref(channel);
 346         return ret;
 347 }
 348
 349 void remote_close(RemoteConnection *rc)
 350 {
 351         if (!rc) return;
 352
 353         if (rc->server)
 354                 {
 355                 remote_server_clients_close(rc);
 356
 357                 g_source_remove(rc->channel_id);
 358                 unlink(rc->path);
 359                 }
 360
 361         if (rc->read_data)
 362                 g_free(rc->read_data);
 363
 364         close(rc->fd);
 365
 366         g_free(rc->path);
 367         g_free(rc);
 368 }
 369
 370 /*
 371  *-----------------------------------------------------------------------------
 372  * remote functions
 373  *-----------------------------------------------------------------------------
 374  */
 375
 376 static void gr_image_next(const gchar *text, GIOChannel *channel, gpointer data)
 377 {
 378         layout_image_next(NULL);
 379 }
 380
 381 static void gr_image_prev(const gchar *text, GIOChannel *channel, gpointer data)
 382 {
 383         layout_image_prev(NULL);
 384 }
 385
 386 static void gr_image_first(const gchar *text, GIOChannel *channel, gpointer data)
 387 {
 388         layout_image_first(NULL);
 389 }
 390
 391 static void gr_image_last(const gchar *text, GIOChannel *channel, gpointer data)
 392 {
 393         layout_image_last(NULL);
 394 }
 395
 396 static void gr_fullscreen_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 397 {
 398         layout_image_full_screen_toggle(NULL);
 399 }
 400
 401 static void gr_fullscreen_start(const gchar *text, GIOChannel *channel, gpointer data)
 402 {
 403         layout_image_full_screen_start(NULL);
 404 }
 405
 406 static void gr_fullscreen_stop(const gchar *text, GIOChannel *channel, gpointer data)
 407 {
 408         layout_image_full_screen_stop(NULL);
 409 }
 410
 411 static void gr_slideshow_start_rec(const gchar *text, GIOChannel *channel, gpointer data)
 412 {
 413         GList *list;
 414         FileData *dir_fd = file_data_new_dir(text);
 415         list = filelist_recursive(dir_fd);
 416         file_data_unref(dir_fd);
 417         if (!list) return;
 418 //printf("length: %d\n", g_list_length(list));
 419         layout_image_slideshow_stop(NULL);
 420         layout_image_slideshow_start_from_list(NULL, list);
 421 }
 422
 423 static void gr_slideshow_toggle(const gchar *text, GIOChannel *channel, gpointer data)
 424 {
 425         layout_image_slideshow_toggle(NULL);
 426 }
 427
 428 static void gr_slideshow_start(const gchar *text, GIOChannel *channel, gpointer data)
 429 {
 430         layout_image_slideshow_start(NULL);
 431 }
 432
 433 static void gr_slideshow_stop(const gchar *text, GIOChannel *channel, gpointer data)
 434 {
 435         layout_image_slideshow_stop(NULL);
 436 }
 437
 438 static void gr_slideshow_delay(const gchar *text, GIOChannel *channel, gpointer data)
 439 {
 440         gdouble n;
 441
 442         n = g_ascii_strtod(text, NULL);
 443         if (n < SLIDESHOW_MIN_SECONDS || n > SLIDESHOW_MAX_SECONDS)
 444                 {
 445                 printf_term("Remote slideshow delay out of range (%.1f to %.1f)\n",
 446                             SLIDESHOW_MIN_SECONDS, SLIDESHOW_MAX_SECONDS);
 447                 return;
 448                 }
 449         options->slideshow.delay = (gint)(n * 10.0 + 0.01);
 450 }
 451
 452 static void gr_tools_show(const gchar *text, GIOChannel *channel, gpointer data)
 453 {
 454         gboolean popped;
 455         gboolean hidden;
 456
 457         if (layout_tools_float_get(NULL, &popped, &hidden) && hidden)
 458                 {
 459                 layout_tools_float_set(NULL, popped, FALSE);
 460                 }
 461 }
 462
 463 static void gr_tools_hide(const gchar *text, GIOChannel *channel, gpointer data)
 464 {
 465         gboolean popped;
 466         gboolean hidden;
 467
 468         if (layout_tools_float_get(NULL, &popped, &hidden) && !hidden)
 469                 {
 470                 layout_tools_float_set(NULL, popped, TRUE);
 471                 }
 472 }
 473
 474 static gboolean gr_quit_idle_cb(gpointer data)
 475 {
 476         exit_program();
 477
 478         return FALSE;
 479 }
 480
 481 static void gr_quit(const gchar *text, GIOChannel *channel, gpointer data)
 482 {
 483         /* schedule exit when idle, if done from within a
 484          * remote handler remote_close will crash
 485          */
 486         g_idle_add(gr_quit_idle_cb, NULL);
 487 }
 488
 489 static void gr_file_load(const gchar *text, GIOChannel *channel, gpointer data)
 490 {
 491         gchar *filename = expand_tilde(text);
 492
 493         if (isfile(filename))
 494                 {
 495                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
 496                         {
 497                         collection_window_new(filename);
 498                         }
 499                 else
 500                         {
 501                         layout_set_path(NULL, filename);
 502                         }
 503                 }
 504         else if (isdir(filename))
 505                 {
 506                 layout_set_path(NULL, filename);
 507                 }
 508         else
 509                 {
 510                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 511                 }
 512
 513         g_free(filename);
 514 }
 515
 516 static void gr_config_load(const gchar *text, GIOChannel *channel, gpointer data)
 517 {
 518         gchar *filename = expand_tilde(text);
 519
 520         if (isfile(filename))
 521                 {
 522                 load_config_from_file(filename, FALSE);
 523                 }
 524         else
 525                 {
 526                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 527                 }
 528
 529         g_free(filename);
 530 }
 531
 532 static void gr_get_sidecars(const gchar *text, GIOChannel *channel, gpointer data)
 533 {
 534         gchar *filename = expand_tilde(text);
 535         FileData *fd = file_data_new_group(filename);
 536
 537         GList *work;
 538         if (fd->parent) fd = fd->parent;
 539
 540         g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 541         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 542
 543         work = fd->sidecar_files;
 544
 545         while (work)
 546                 {
 547                 fd = work->data;
 548                 work = work->next;
 549                 g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 550                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 551                 }
 552         g_free(filename);
 553 }
 554
 555 static void gr_get_destination(const gchar *text, GIOChannel *channel, gpointer data)
 556 {
 557         gchar *filename = expand_tilde(text);
 558         FileData *fd = file_data_new_group(filename);
 559
 560         if (fd->change && fd->change->dest)
 561                 {
 562                 g_io_channel_write_chars(channel, fd->change->dest, -1, NULL, NULL);
 563                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 564                 }
 565         g_free(filename);
 566 }
 567
 568 static void gr_file_view(const gchar *text, GIOChannel *channel, gpointer data)
 569 {
 570         gchar *filename = expand_tilde(text);
 571
 572         view_window_new(file_data_new_group(filename));
 573         g_free(filename);
 574 }
 575
 576 static void gr_list_clear(const gchar *text, GIOChannel *channel, gpointer data)
 577 {
 578         RemoteData *remote_data = data;
 579
 580         if (remote_data->command_collection)
 581                 {
 582                 collection_unref(remote_data->command_collection);
 583                 remote_data->command_collection = NULL;
 584                 }
 585 }
 586
 587 static void gr_list_add(const gchar *text, GIOChannel *channel, gpointer data)
 588 {
 589         RemoteData *remote_data = data;
 590         gboolean new = TRUE;
 591
 592         if (!remote_data->command_collection)
 593                 {
 594                 CollectionData *cd;
 595
 596                 cd = collection_new("");
 597
 598                 g_free(cd->path);
 599                 cd->path = NULL;
 600                 g_free(cd->name);
 601                 cd->name = g_strdup(_("Command line"));
 602
 603                 remote_data->command_collection = cd;
 604                 }
 605         else
 606                 {
 607                 new = (!collection_get_first(remote_data->command_collection));
 608                 }
 609
 610         if (collection_add(remote_data->command_collection, file_data_new_group(text), FALSE) && new)
 611                 {
 612                 layout_image_set_collection(NULL, remote_data->command_collection,
 613                                             collection_get_first(remote_data->command_collection));
 614                 }
 615 }
 616
 617 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data)
 618 {
 619         LayoutWindow *lw = NULL;
 620
 621         if (layout_valid(&lw))
 622                 {
 623                 gtk_window_present(GTK_WINDOW(lw->window));
 624                 }
 625 }
 626
 627 typedef struct _RemoteCommandEntry RemoteCommandEntry;
 628 struct _RemoteCommandEntry {
 629         gchar *opt_s;
 630         gchar *opt_l;
 631         void (*func)(const gchar *text, GIOChannel *channel, gpointer data);
 632         gboolean needs_extra;
 633         gboolean prefer_command_line;
 634         gchar *parameter;
 635         gchar *description;
 636 };
 637
 638 static RemoteCommandEntry remote_commands[] = {
 639         /* short, long                  callback,               extra, prefer, parameter, description */
 640         { "-n", "--next",               gr_image_next,          FALSE, FALSE, NULL, N_("next image") },
 641         { "-b", "--back",               gr_image_prev,          FALSE, FALSE, NULL, N_("previous image") },
 642         { NULL, "--first",              gr_image_first,         FALSE, FALSE, NULL, N_("first image") },
 643         { NULL, "--last",               gr_image_last,          FALSE, FALSE, NULL, N_("last image") },
 644         { "-f", "--fullscreen",         gr_fullscreen_toggle,   FALSE, TRUE,  NULL, N_("toggle full screen") },
 645         { "-fs","--fullscreen-start",   gr_fullscreen_start,    FALSE, FALSE, NULL, N_("start full screen") },
 646         { "-fS","--fullscreen-stop",    gr_fullscreen_stop,     FALSE, FALSE, NULL, N_("stop full screen") },
 647         { "-s", "--slideshow",          gr_slideshow_toggle,    FALSE, TRUE,  NULL, N_("toggle slide show") },
 648         { "-ss","--slideshow-start",    gr_slideshow_start,     FALSE, FALSE, NULL, N_("start slide show") },
 649         { "-sS","--slideshow-stop",     gr_slideshow_stop,      FALSE, FALSE, NULL, N_("stop slide show") },
 650         { NULL, "--slideshow-recurse:", gr_slideshow_start_rec, TRUE,  FALSE, N_("<FOLDER>"), N_("start recursive slide show in FOLDER") },
 651         { "-d", "--delay=",             gr_slideshow_delay,     TRUE,  FALSE, N_("<[N][.M]>"), N_("set slide show delay to N.M seconds") },
 652         { "+t", "--tools-show",         gr_tools_show,          FALSE, TRUE,  NULL, N_("show tools") },
 653         { "-t", "--tools-hide",         gr_tools_hide,          FALSE, TRUE,  NULL, N_("hide tools") },
 654         { "-q", "--quit",               gr_quit,                FALSE, FALSE, NULL, N_("quit") },
 655         { NULL, "--config-load:",       gr_config_load,         TRUE,  FALSE, N_("<FILE>"), N_("load configuration from FILE") },
 656         { NULL, "--get-sidecars:",      gr_get_sidecars,        TRUE,  FALSE, N_("<FILE>"), N_("get list of sidecars of FILE") },
 657         { NULL, "--get-destination:",   gr_get_destination,     TRUE,  FALSE, N_("<FILE>"), N_("get destination path of FILE") },
 658         { NULL, "file:",                gr_file_load,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE") },
 659         { NULL, "view:",                gr_file_view,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE in new window") },
 660         { NULL, "--list-clear",         gr_list_clear,          FALSE, FALSE, NULL, N_("clear command line collection list") },
 661         { NULL, "--list-add:",          gr_list_add,            TRUE,  FALSE, N_("<FILE>"), N_("add FILE to command line collection list") },
 662         { NULL, "raise",                gr_raise,               FALSE, FALSE, NULL, N_("bring the Geeqie window to the top") },
 663         { NULL, NULL, NULL, FALSE, FALSE, NULL }
 664 };
 665
 666 static RemoteCommandEntry *remote_command_find(const gchar *text, const gchar **offset)
 667 {
 668         gboolean match = FALSE;
 669         gint i;
 670
 671         i = 0;
 672         while (!match && remote_commands[i].func != NULL)
 673                 {
 674                 if (remote_commands[i].needs_extra)
 675                         {
 676                         if (remote_commands[i].opt_s &&
 677                             strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
 678                                 {
 679                                 if (offset) *offset = text + strlen(remote_commands[i].opt_s);
 680                                 return &remote_commands[i];
 681                                 }
 682                         else if (remote_commands[i].opt_l &&
 683                                  strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
 684                                 {
 685                                 if (offset) *offset = text + strlen(remote_commands[i].opt_l);
 686                                 return &remote_commands[i];
 687                                 }
 688                         }
 689                 else
 690                         {
 691                         if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
 692                             (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
 693                                 {
 694                                 if (offset) *offset = text;
 695                                 return &remote_commands[i];
 696                                 }
 697                         }
 698
 699                 i++;
 700                 }
 701
 702         return NULL;
 703 }
 704
 705 static void remote_cb(RemoteConnection *rc, const gchar *text, GIOChannel *channel, gpointer data)
 706 {
 707         RemoteCommandEntry *entry;
 708         const gchar *offset;
 709
 710         entry = remote_command_find(text, &offset);
 711         if (entry && entry->func)
 712                 {
 713                 entry->func(offset, channel, data);
 714                 }
 715         else
 716                 {
 717                 log_printf("unknown remote command:%s\n", text);
 718                 }
 719 }
 720
 721 void remote_help(void)
 722 {
 723         gint i;
 724         gchar *s_opt_param;
 725         gchar *l_opt_param;
 726
 727         print_term(_("Remote command list:\n"));
 728
 729         i = 0;
 730         while (remote_commands[i].func != NULL)
 731                 {
 732                 if (remote_commands[i].description)
 733                         {
 734                         s_opt_param = g_strconcat(remote_commands[i].opt_s, remote_commands[i].parameter, NULL);
 735                         l_opt_param = g_strconcat(remote_commands[i].opt_l, remote_commands[i].parameter, NULL);
 736                         printf_term("  %-11s%-1s %-30s%-s\n",
 737                                     (remote_commands[i].opt_s) ? s_opt_param : "",
 738                                     (remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
 739                                     (remote_commands[i].opt_l) ? l_opt_param : "",
 740                                     _(remote_commands[i].description));
 741                         g_free(s_opt_param);
 742                         g_free(l_opt_param);
 743                         }
 744                 i++;
 745                 }
 746         printf_term(N_("\n  All other command line parameters are used as plain files if they exists.\n"));
 747 }
 748
 749 GList *remote_build_list(GList *list, gint argc, gchar *argv[], GList **errors)
 750 {
 751         gint i;
 752
 753         i = 1;
 754         while (i < argc)
 755                 {
 756                 RemoteCommandEntry *entry;
 757
 758                 entry = remote_command_find(argv[i], NULL);
 759                 if (entry)
 760                         {
 761                         list = g_list_append(list, argv[i]);
 762                         }
 763                 else if (errors && !isfile(argv[i]))
 764                         {
 765                         *errors = g_list_append(*errors, argv[i]);
 766                         }
 767                 i++;
 768                 }
 769
 770         return list;
 771 }
 772
 773 /**
 774  * \param arg_exec Binary (argv0)
 775  * \param remote_list Evaluated and recognized remote commands
 776  * \param path The current path
 777  * \param cmd_list List of all non collections in Path
 778  * \param collection_list List of all collections in argv
 779  */
 780 void remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
 781                     GList *cmd_list, GList *collection_list)
 782 {
 783         RemoteConnection *rc;
 784         gboolean started = FALSE;
 785         gchar *buf;
 786
 787         buf = g_build_filename(get_rc_dir(), ".command", NULL);
 788         rc = remote_client_open(buf);
 789         if (!rc)
 790                 {
 791                 GString *command;
 792                 GList *work;
 793                 gint retry_count = 12;
 794                 gboolean blank = FALSE;
 795
 796                 printf_term(_("Remote %s not running, starting..."), GQ_APPNAME);
 797
 798                 command = g_string_new(arg_exec);
 799
 800                 work = remote_list;
 801                 while (work)
 802                         {
 803                         gchar *text;
 804                         RemoteCommandEntry *entry;
 805
 806                         text = work->data;
 807                         work = work->next;
 808
 809                         entry = remote_command_find(text, NULL);
 810                         if (entry)
 811                                 {
 812                                 if (entry->prefer_command_line)
 813                                         {
 814                                         remote_list = g_list_remove(remote_list, text);
 815                                         g_string_append(command, " ");
 816                                         g_string_append(command, text);
 817                                         }
 818                                 if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
 819                                         {
 820                                         blank = TRUE;
 821                                         }
 822                                 }
 823                         }
 824
 825                 if (blank || cmd_list || path) g_string_append(command, " --blank");
 826                 if (get_debug_level()) g_string_append(command, " --debug");
 827
 828                 g_string_append(command, " &");
 829                 runcmd(command->str);
 830                 g_string_free(command, TRUE);
 831
 832                 while (!rc && retry_count > 0)
 833                         {
 834                         usleep((retry_count > 10) ? 500000 : 1000000);
 835                         rc = remote_client_open(buf);
 836                         if (!rc) print_term(".");
 837                         retry_count--;
 838                         }
 839
 840                 print_term("\n");
 841
 842                 started = TRUE;
 843                 }
 844         g_free(buf);
 845
 846         if (rc)
 847                 {
 848                 GList *work;
 849                 const gchar *prefix;
 850                 gboolean use_path = TRUE;
 851                 gboolean sent = FALSE;
 852
 853                 work = remote_list;
 854                 while (work)
 855                         {
 856                         gchar *text;
 857                         RemoteCommandEntry *entry;
 858
 859                         text = work->data;
 860                         work = work->next;
 861
 862                         entry = remote_command_find(text, NULL);
 863                         if (entry &&
 864                             entry->opt_l &&
 865                             strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;
 866
 867                         remote_client_send(rc, text);
 868
 869                         sent = TRUE;
 870                         }
 871
 872                 if (cmd_list && cmd_list->next)
 873                         {
 874                         prefix = "--list-add:";
 875                         remote_client_send(rc, "--list-clear");
 876                         }
 877                 else
 878                         {
 879                         prefix = "file:";
 880                         }
 881
 882                 work = cmd_list;
 883                 while (work)
 884                         {
 885                         FileData *fd;
 886                         gchar *text;
 887
 888                         fd = work->data;
 889                         work = work->next;
 890
 891                         text = g_strconcat(prefix, fd->path, NULL);
 892                         remote_client_send(rc, text);
 893                         g_free(text);
 894
 895                         sent = TRUE;
 896                         }
 897
 898                 if (path && !cmd_list && use_path)
 899                         {
 900                         gchar *text;
 901
 902                         text = g_strdup_printf("file:%s", path);
 903                         remote_client_send(rc, text);
 904                         g_free(text);
 905
 906                         sent = TRUE;
 907                         }
 908
 909                 work = collection_list;
 910                 while (work)
 911                         {
 912                         const gchar *name;
 913                         gchar *text;
 914
 915                         name = work->data;
 916                         work = work->next;
 917
 918                         text = g_strdup_printf("file:%s", name);
 919                         remote_client_send(rc, text);
 920                         g_free(text);
 921
 922                         sent = TRUE;
 923                         }
 924
 925                 if (!started && !sent)
 926                         {
 927                         remote_client_send(rc, "raise");
 928                         }
 929                 }
 930         else
 931                 {
 932                 print_term(_("Remote not available\n"));
 933                 }
 934
 935         _exit(0);
 936 }
 937
 938 RemoteConnection *remote_server_init(gchar *path, CollectionData *command_collection)
 939 {
 940         RemoteConnection *remote_connection = remote_server_open(path);
 941         RemoteData *remote_data = g_new(RemoteData, 1);
 942
 943         remote_data->command_collection = command_collection;
 944
 945         remote_server_subscribe(remote_connection, remote_cb, remote_data);
 946         return remote_connection;
 947 }
 948 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */