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                 }
 520
 521         g_free(filename);
 522 }
 523
 524 static void gr_config_load(const gchar *text, GIOChannel *channel, gpointer data)
 525 {
 526         gchar *filename = expand_tilde(text);
 527
 528         if (isfile(filename))
 529                 {
 530                 load_config_from_file(filename, FALSE);
 531                 }
 532         else
 533                 {
 534                 log_printf("remote sent filename that does not exist:\"%s\"\n", filename);
 535                 }
 536
 537         g_free(filename);
 538 }
 539
 540 static void gr_get_sidecars(const gchar *text, GIOChannel *channel, gpointer data)
 541 {
 542         gchar *filename = expand_tilde(text);
 543         FileData *fd = file_data_new_group(filename);
 544
 545         GList *work;
 546         if (fd->parent) fd = fd->parent;
 547
 548         g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 549         g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 550
 551         work = fd->sidecar_files;
 552
 553         while (work)
 554                 {
 555                 fd = work->data;
 556                 work = work->next;
 557                 g_io_channel_write_chars(channel, fd->path, -1, NULL, NULL);
 558                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 559                 }
 560         g_free(filename);
 561 }
 562
 563 static void gr_get_destination(const gchar *text, GIOChannel *channel, gpointer data)
 564 {
 565         gchar *filename = expand_tilde(text);
 566         FileData *fd = file_data_new_group(filename);
 567
 568         if (fd->change && fd->change->dest)
 569                 {
 570                 g_io_channel_write_chars(channel, fd->change->dest, -1, NULL, NULL);
 571                 g_io_channel_write_chars(channel, "\n", -1, NULL, NULL);
 572                 }
 573         g_free(filename);
 574 }
 575
 576 static void gr_file_view(const gchar *text, GIOChannel *channel, gpointer data)
 577 {
 578         gchar *filename = expand_tilde(text);
 579
 580         view_window_new(file_data_new_group(filename));
 581         g_free(filename);
 582 }
 583
 584 static void gr_list_clear(const gchar *text, GIOChannel *channel, gpointer data)
 585 {
 586         RemoteData *remote_data = data;
 587
 588         if (remote_data->command_collection)
 589                 {
 590                 collection_unref(remote_data->command_collection);
 591                 remote_data->command_collection = NULL;
 592                 }
 593 }
 594
 595 static void gr_list_add(const gchar *text, GIOChannel *channel, gpointer data)
 596 {
 597         RemoteData *remote_data = data;
 598         gboolean new = TRUE;
 599
 600         if (!remote_data->command_collection)
 601                 {
 602                 CollectionData *cd;
 603
 604                 cd = collection_new("");
 605
 606                 g_free(cd->path);
 607                 cd->path = NULL;
 608                 g_free(cd->name);
 609                 cd->name = g_strdup(_("Command line"));
 610
 611                 remote_data->command_collection = cd;
 612                 }
 613         else
 614                 {
 615                 new = (!collection_get_first(remote_data->command_collection));
 616                 }
 617
 618         if (collection_add(remote_data->command_collection, file_data_new_group(text), FALSE) && new)
 619                 {
 620                 layout_image_set_collection(NULL, remote_data->command_collection,
 621                                             collection_get_first(remote_data->command_collection));
 622                 }
 623 }
 624
 625 static void gr_raise(const gchar *text, GIOChannel *channel, gpointer data)
 626 {
 627         LayoutWindow *lw = NULL;
 628
 629         if (layout_valid(&lw))
 630                 {
 631                 gtk_window_present(GTK_WINDOW(lw->window));
 632                 }
 633 }
 634
 635 typedef struct _RemoteCommandEntry RemoteCommandEntry;
 636 struct _RemoteCommandEntry {
 637         gchar *opt_s;
 638         gchar *opt_l;
 639         void (*func)(const gchar *text, GIOChannel *channel, gpointer data);
 640         gboolean needs_extra;
 641         gboolean prefer_command_line;
 642         gchar *parameter;
 643         gchar *description;
 644 };
 645
 646 static RemoteCommandEntry remote_commands[] = {
 647         /* short, long                  callback,               extra, prefer, parameter, description */
 648         { "-n", "--next",               gr_image_next,          FALSE, FALSE, NULL, N_("next image") },
 649         { "-b", "--back",               gr_image_prev,          FALSE, FALSE, NULL, N_("previous image") },
 650         { NULL, "--first",              gr_image_first,         FALSE, FALSE, NULL, N_("first image") },
 651         { NULL, "--last",               gr_image_last,          FALSE, FALSE, NULL, N_("last image") },
 652         { "-f", "--fullscreen",         gr_fullscreen_toggle,   FALSE, TRUE,  NULL, N_("toggle full screen") },
 653         { "-fs","--fullscreen-start",   gr_fullscreen_start,    FALSE, FALSE, NULL, N_("start full screen") },
 654         { "-fS","--fullscreen-stop",    gr_fullscreen_stop,     FALSE, FALSE, NULL, N_("stop full screen") },
 655         { "-s", "--slideshow",          gr_slideshow_toggle,    FALSE, TRUE,  NULL, N_("toggle slide show") },
 656         { "-ss","--slideshow-start",    gr_slideshow_start,     FALSE, FALSE, NULL, N_("start slide show") },
 657         { "-sS","--slideshow-stop",     gr_slideshow_stop,      FALSE, FALSE, NULL, N_("stop slide show") },
 658         { NULL, "--slideshow-recurse:", gr_slideshow_start_rec, TRUE,  FALSE, N_("<FOLDER>"), N_("start recursive slide show in FOLDER") },
 659         { "-d", "--delay=",             gr_slideshow_delay,     TRUE,  FALSE, N_("<[N][.M]>"), N_("set slide show delay to N.M seconds") },
 660         { "+t", "--tools-show",         gr_tools_show,          FALSE, TRUE,  NULL, N_("show tools") },
 661         { "-t", "--tools-hide",         gr_tools_hide,          FALSE, TRUE,  NULL, N_("hide tools") },
 662         { "-q", "--quit",               gr_quit,                FALSE, FALSE, NULL, N_("quit") },
 663         { NULL, "--config-load:",       gr_config_load,         TRUE,  FALSE, N_("<FILE>"), N_("load configuration from FILE") },
 664         { NULL, "--get-sidecars:",      gr_get_sidecars,        TRUE,  FALSE, N_("<FILE>"), N_("get list of sidecars of FILE") },
 665         { NULL, "--get-destination:",   gr_get_destination,     TRUE,  FALSE, N_("<FILE>"), N_("get destination path of FILE") },
 666         { NULL, "file:",                gr_file_load,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE") },
 667         { NULL, "view:",                gr_file_view,           TRUE,  FALSE, N_("<FILE>"), N_("open FILE in new window") },
 668         { NULL, "--list-clear",         gr_list_clear,          FALSE, FALSE, NULL, N_("clear command line collection list") },
 669         { NULL, "--list-add:",          gr_list_add,            TRUE,  FALSE, N_("<FILE>"), N_("add FILE to command line collection list") },
 670         { NULL, "raise",                gr_raise,               FALSE, FALSE, NULL, N_("bring the Geeqie window to the top") },
 671         { NULL, NULL, NULL, FALSE, FALSE, NULL }
 672 };
 673
 674 static RemoteCommandEntry *remote_command_find(const gchar *text, const gchar **offset)
 675 {
 676         gboolean match = FALSE;
 677         gint i;
 678
 679         i = 0;
 680         while (!match && remote_commands[i].func != NULL)
 681                 {
 682                 if (remote_commands[i].needs_extra)
 683                         {
 684                         if (remote_commands[i].opt_s &&
 685                             strncmp(remote_commands[i].opt_s, text, strlen(remote_commands[i].opt_s)) == 0)
 686                                 {
 687                                 if (offset) *offset = text + strlen(remote_commands[i].opt_s);
 688                                 return &remote_commands[i];
 689                                 }
 690                         else if (remote_commands[i].opt_l &&
 691                                  strncmp(remote_commands[i].opt_l, text, strlen(remote_commands[i].opt_l)) == 0)
 692                                 {
 693                                 if (offset) *offset = text + strlen(remote_commands[i].opt_l);
 694                                 return &remote_commands[i];
 695                                 }
 696                         }
 697                 else
 698                         {
 699                         if ((remote_commands[i].opt_s && strcmp(remote_commands[i].opt_s, text) == 0) ||
 700                             (remote_commands[i].opt_l && strcmp(remote_commands[i].opt_l, text) == 0))
 701                                 {
 702                                 if (offset) *offset = text;
 703                                 return &remote_commands[i];
 704                                 }
 705                         }
 706
 707                 i++;
 708                 }
 709
 710         return NULL;
 711 }
 712
 713 static void remote_cb(RemoteConnection *rc, const gchar *text, GIOChannel *channel, gpointer data)
 714 {
 715         RemoteCommandEntry *entry;
 716         const gchar *offset;
 717
 718         entry = remote_command_find(text, &offset);
 719         if (entry && entry->func)
 720                 {
 721                 entry->func(offset, channel, data);
 722                 }
 723         else
 724                 {
 725                 log_printf("unknown remote command:%s\n", text);
 726                 }
 727 }
 728
 729 void remote_help(void)
 730 {
 731         gint i;
 732         gchar *s_opt_param;
 733         gchar *l_opt_param;
 734
 735         print_term(_("Remote command list:\n"));
 736
 737         i = 0;
 738         while (remote_commands[i].func != NULL)
 739                 {
 740                 if (remote_commands[i].description)
 741                         {
 742                         s_opt_param = g_strconcat(remote_commands[i].opt_s, remote_commands[i].parameter, NULL);
 743                         l_opt_param = g_strconcat(remote_commands[i].opt_l, remote_commands[i].parameter, NULL);
 744                         printf_term("  %-11s%-1s %-30s%-s\n",
 745                                     (remote_commands[i].opt_s) ? s_opt_param : "",
 746                                     (remote_commands[i].opt_s && remote_commands[i].opt_l) ? "," : " ",
 747                                     (remote_commands[i].opt_l) ? l_opt_param : "",
 748                                     _(remote_commands[i].description));
 749                         g_free(s_opt_param);
 750                         g_free(l_opt_param);
 751                         }
 752                 i++;
 753                 }
 754         printf_term(N_("\n  All other command line parameters are used as plain files if they exists.\n"));
 755 }
 756
 757 GList *remote_build_list(GList *list, gint argc, gchar *argv[], GList **errors)
 758 {
 759         gint i;
 760
 761         i = 1;
 762         while (i < argc)
 763                 {
 764                 RemoteCommandEntry *entry;
 765
 766                 entry = remote_command_find(argv[i], NULL);
 767                 if (entry)
 768                         {
 769                         list = g_list_append(list, argv[i]);
 770                         }
 771                 else if (errors && !isfile(argv[i]))
 772                         {
 773                         *errors = g_list_append(*errors, argv[i]);
 774                         }
 775                 i++;
 776                 }
 777
 778         return list;
 779 }
 780
 781 /**
 782  * \param arg_exec Binary (argv0)
 783  * \param remote_list Evaluated and recognized remote commands
 784  * \param path The current path
 785  * \param cmd_list List of all non collections in Path
 786  * \param collection_list List of all collections in argv
 787  */
 788 void remote_control(const gchar *arg_exec, GList *remote_list, const gchar *path,
 789                     GList *cmd_list, GList *collection_list)
 790 {
 791         RemoteConnection *rc;
 792         gboolean started = FALSE;
 793         gchar *buf;
 794
 795         buf = g_build_filename(get_rc_dir(), ".command", NULL);
 796         rc = remote_client_open(buf);
 797         if (!rc)
 798                 {
 799                 GString *command;
 800                 GList *work;
 801                 gint retry_count = 12;
 802                 gboolean blank = FALSE;
 803
 804                 printf_term(_("Remote %s not running, starting..."), GQ_APPNAME);
 805
 806                 command = g_string_new(arg_exec);
 807
 808                 work = remote_list;
 809                 while (work)
 810                         {
 811                         gchar *text;
 812                         RemoteCommandEntry *entry;
 813
 814                         text = work->data;
 815                         work = work->next;
 816
 817                         entry = remote_command_find(text, NULL);
 818                         if (entry)
 819                                 {
 820                                 if (entry->prefer_command_line)
 821                                         {
 822                                         remote_list = g_list_remove(remote_list, text);
 823                                         g_string_append(command, " ");
 824                                         g_string_append(command, text);
 825                                         }
 826                                 if (entry->opt_l && strcmp(entry->opt_l, "file:") == 0)
 827                                         {
 828                                         blank = TRUE;
 829                                         }
 830                                 }
 831                         }
 832
 833                 if (blank || cmd_list || path) g_string_append(command, " --blank");
 834                 if (get_debug_level()) g_string_append(command, " --debug");
 835
 836                 g_string_append(command, " &");
 837                 runcmd(command->str);
 838                 g_string_free(command, TRUE);
 839
 840                 while (!rc && retry_count > 0)
 841                         {
 842                         usleep((retry_count > 10) ? 500000 : 1000000);
 843                         rc = remote_client_open(buf);
 844                         if (!rc) print_term(".");
 845                         retry_count--;
 846                         }
 847
 848                 print_term("\n");
 849
 850                 started = TRUE;
 851                 }
 852         g_free(buf);
 853
 854         if (rc)
 855                 {
 856                 GList *work;
 857                 const gchar *prefix;
 858                 gboolean use_path = TRUE;
 859                 gboolean sent = FALSE;
 860
 861                 work = remote_list;
 862                 while (work)
 863                         {
 864                         gchar *text;
 865                         RemoteCommandEntry *entry;
 866
 867                         text = work->data;
 868                         work = work->next;
 869
 870                         entry = remote_command_find(text, NULL);
 871                         if (entry &&
 872                             entry->opt_l &&
 873                             strcmp(entry->opt_l, "file:") == 0) use_path = FALSE;
 874
 875                         remote_client_send(rc, text);
 876
 877                         sent = TRUE;
 878                         }
 879
 880                 if (cmd_list && cmd_list->next)
 881                         {
 882                         prefix = "--list-add:";
 883                         remote_client_send(rc, "--list-clear");
 884                         }
 885                 else
 886                         {
 887                         prefix = "file:";
 888                         }
 889
 890                 work = cmd_list;
 891                 while (work)
 892                         {
 893                         FileData *fd;
 894                         gchar *text;
 895
 896                         fd = work->data;
 897                         work = work->next;
 898
 899                         text = g_strconcat(prefix, fd->path, NULL);
 900                         remote_client_send(rc, text);
 901                         g_free(text);
 902
 903                         sent = TRUE;
 904                         }
 905
 906                 if (path && !cmd_list && use_path)
 907                         {
 908                         gchar *text;
 909
 910                         text = g_strdup_printf("file:%s", path);
 911                         remote_client_send(rc, text);
 912                         g_free(text);
 913
 914                         sent = TRUE;
 915                         }
 916
 917                 work = collection_list;
 918                 while (work)
 919                         {
 920                         const gchar *name;
 921                         gchar *text;
 922
 923                         name = work->data;
 924                         work = work->next;
 925
 926                         text = g_strdup_printf("file:%s", name);
 927                         remote_client_send(rc, text);
 928                         g_free(text);
 929
 930                         sent = TRUE;
 931                         }
 932
 933                 if (!started && !sent)
 934                         {
 935                         remote_client_send(rc, "raise");
 936                         }
 937                 }
 938         else
 939                 {
 940                 print_term(_("Remote not available\n"));
 941                 }
 942
 943         _exit(0);
 944 }
 945
 946 RemoteConnection *remote_server_init(gchar *path, CollectionData *command_collection)
 947 {
 948         RemoteConnection *remote_connection = remote_server_open(path);
 949         RemoteData *remote_data = g_new(RemoteData, 1);
 950
 951         remote_data->command_collection = command_collection;
 952
 953         remote_server_subscribe(remote_connection, remote_cb, remote_data);
 954         return remote_connection;
 955 }
 956 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */