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