ROX-Filer/src/remote.c

   1 /*
   2  * $Id$
   3  *
   4  * ROX-Filer, filer for the ROX desktop project
   5  * Copyright (C) 2005, the ROX-Filer team.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  19  * Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 /* This code is used to communicate between two copies of the filer:
  23  * If the filer is run and the same version of the filer is already
  24  * running on the same machine then the new copy simply asks the old
  25  * one deal with it and quits.
  26  */
  27
  28 #include "config.h"
  29
  30 #include <string.h>
  31
  32 #include <gdk/gdkx.h>
  33 #include <X11/X.h>
  34 #include <X11/Xatom.h>
  35 #include <gtk/gtk.h>
  36 #include <gtk/gtkinvisible.h>
  37 #include <libxml/parser.h>
  38
  39 #include "global.h"
  40
  41 #include "main.h"
  42 #include "support.h"
  43 #include "gui_support.h"
  44 #include "run.h"
  45 #include "remote.h"
  46 #include "filer.h"
  47 #include "pinboard.h"
  48 #include "panel.h"
  49 #include "action.h"
  50 #include "type.h"
  51 #include "display.h"
  52 #include "xml.h"
  53 #include "diritem.h"
  54
  55 static GdkAtom filer_atom;      /* _ROX_FILER_EUID_VERSION_HOST */
  56 static GdkAtom filer_atom_any;  /* _ROX_FILER_EUID_HOST */
  57 static GdkAtom xsoap;           /* _XSOAP */
  58
  59 typedef struct _SOAP_call SOAP_call;
  60 typedef xmlNodePtr (*SOAP_func)(GList *args);
  61
  62 struct _SOAP_call {
  63         SOAP_func func;
  64         gchar **required_args;
  65         gchar **optional_args;
  66 };
  67
  68 static GHashTable *rpc_calls = NULL; /* MethodName -> Function */
  69
  70 /* Static prototypes */
  71 static GdkWindow *get_existing_ipc_window(void);
  72 static gboolean get_ipc_property(GdkWindow *window, Window *r_xid);
  73 static void soap_send(GtkWidget *from, GdkAtom prop, GdkWindow *dest);
  74 static gboolean client_event(GtkWidget *window,
  75                                  GdkEventClient *event,
  76                                  gpointer data);
  77 static void soap_done(GtkWidget *widget,
  78                       GdkEventProperty *event,
  79                       gpointer data);
  80 static void soap_register(char *name, SOAP_func func, char *req, char *opt);
  81 static xmlNodePtr soap_invoke(xmlNode *method);
  82
  83 static xmlNodePtr rpc_Version(GList *args);
  84 static xmlNodePtr rpc_OpenDir(GList *args);
  85 static xmlNodePtr rpc_CloseDir(GList *args);
  86 static xmlNodePtr rpc_Examine(GList *args);
  87 static xmlNodePtr rpc_Show(GList *args);
  88 static xmlNodePtr rpc_Pinboard(GList *args);
  89 static xmlNodePtr rpc_Panel(GList *args);
  90 static xmlNodePtr rpc_Run(GList *args);
  91 static xmlNodePtr rpc_Copy(GList *args);
  92 static xmlNodePtr rpc_Move(GList *args);
  93 static xmlNodePtr rpc_Link(GList *args);
  94 static xmlNodePtr rpc_FileType(GList *args);
  95 static xmlNodePtr rpc_Mount(GList *args);
  96 static xmlNodePtr rpc_Unmount(GList *args);
  97
  98 static xmlNodePtr rpc_PanelAdd(GList *args);
  99 static xmlNodePtr rpc_PanelRemove(GList *args);
 100 static xmlNodePtr rpc_PinboardAdd(GList *args);
 101 static xmlNodePtr rpc_PinboardRemove(GList *args);
 102 static xmlNodePtr rpc_SetBackdrop(GList *args);
 103 static xmlNodePtr rpc_SetBackdropApp(GList *args);
 104
 105 /****************************************************************
 106  *                      EXTERNAL INTERFACE                      *
 107  ****************************************************************/
 108
 109
 110 /* Try to get an already-running filer to handle things (only if
 111  * new_copy is FALSE); TRUE if we succeed.
 112  * Create an IPC widget so that future filers can contact us.
 113  */
 114 gboolean remote_init(xmlDocPtr rpc, gboolean new_copy)
 115 {
 116         guchar          *unique_id;
 117         GdkWindow       *existing_ipc_window;
 118         GtkWidget       *ipc_window;
 119         Window          xwindow;
 120
 121         /* xmlDocDump(stdout, rpc); */
 122
 123         rpc_calls = g_hash_table_new(g_str_hash, g_str_equal);
 124
 125         soap_register("Version", rpc_Version, NULL, NULL);
 126
 127         soap_register("Run", rpc_Run, "Filename", NULL);
 128         soap_register("OpenDir", rpc_OpenDir, "Filename",
 129                               "Style,Details,Sort,Class,ID,Hidden,Filter");
 130         soap_register("CloseDir", rpc_CloseDir, "Filename", NULL);
 131         soap_register("Examine", rpc_Examine, "Filename", NULL);
 132         soap_register("Show", rpc_Show, "Directory,Leafname", NULL);
 133
 134         soap_register("Pinboard", rpc_Pinboard, NULL, "Name");
 135         soap_register("Panel", rpc_Panel, NULL, "Side,Name");
 136
 137         soap_register("FileType", rpc_FileType, "Filename", NULL);
 138
 139         soap_register("Copy", rpc_Copy, "From,To", "Leafname,Quiet");
 140         soap_register("Move", rpc_Move, "From,To", "Leafname,Quiet");
 141         soap_register("Link", rpc_Link, "From,To", "Leafname");
 142         soap_register("Mount", rpc_Mount, "MountPoints", "OpenDir,Quiet");
 143         soap_register("Unmount", rpc_Unmount, "MountPoints", "Quiet");
 144
 145         soap_register("SetBackdrop", rpc_SetBackdrop, "Filename,Style", NULL);
 146         soap_register("SetBackdropApp", rpc_SetBackdropApp, "App", NULL);
 147         soap_register("PinboardAdd", rpc_PinboardAdd, "Path,X,Y", "Label,Shortcut,Args");
 148         soap_register("PinboardRemove", rpc_PinboardRemove, "Path", "Label");
 149         soap_register("PanelAdd", rpc_PanelAdd, "Side,Path", "Label,After,Shortcut,Args");
 150         soap_register("PanelRemove", rpc_PanelRemove, "Side,Path", "Label");
 151
 152         /* Look for a property on the root window giving the IPC window
 153          * of an already-running copy of this version of the filer, running
 154          * on the same machine and with the same euid.
 155          */
 156         unique_id = g_strdup_printf("_ROX_FILER_%d_%s_%s",
 157                                 (int) euid, VERSION, our_host_name());
 158         filer_atom = gdk_atom_intern(unique_id, FALSE);
 159         g_free(unique_id);
 160
 161         xsoap = gdk_atom_intern("_XSOAP", FALSE);
 162
 163         /* If we find a running copy, we'll need a window to put the
 164          * SOAP message in before sending.
 165          * If there's no running copy, we'll need a window to receive
 166          * future SOAP message events.
 167          * Either way, we'll need a window for it...
 168          */
 169         ipc_window = gtk_invisible_new();
 170         gtk_widget_realize(ipc_window);
 171
 172         XGrabServer(GDK_DISPLAY());
 173
 174         existing_ipc_window = new_copy ? NULL : get_existing_ipc_window();
 175         if (existing_ipc_window)
 176         {
 177                 xmlChar *mem;
 178                 int     size;
 179
 180                 XUngrabServer(GDK_DISPLAY());
 181
 182                 xmlDocDumpMemory(rpc, &mem, &size);
 183                 g_return_val_if_fail(size > 0, FALSE);
 184
 185                 /* Since Gtk might have selected this already, we'd
 186                  * better do it BEFORE changing the property.
 187                  */
 188                 gtk_widget_add_events(ipc_window, GDK_PROPERTY_CHANGE_MASK);
 189                 g_signal_connect(ipc_window, "property-notify-event",
 190                                 G_CALLBACK(soap_done), GINT_TO_POINTER(xsoap));
 191
 192                 gdk_property_change(ipc_window->window, xsoap,
 193                                 gdk_x11_xatom_to_atom(XA_STRING), 8,
 194                                 GDK_PROP_MODE_REPLACE, mem, size);
 195                 g_free(mem);
 196
 197                 soap_send(ipc_window, xsoap, existing_ipc_window);
 198
 199                 return TRUE;
 200         }
 201
 202         xwindow = GDK_WINDOW_XWINDOW(ipc_window->window);
 203
 204         /* Make the IPC window contain a property pointing to
 205          * itself - this can then be used to check that it really
 206          * is an IPC window.
 207          */
 208         gdk_property_change(ipc_window->window, filer_atom,
 209                         gdk_x11_xatom_to_atom(XA_WINDOW), 32,
 210                         GDK_PROP_MODE_REPLACE,
 211                         (void *) &xwindow, 1);
 212
 213         /* Get notified when we get a message */
 214         g_signal_connect(ipc_window, "client-event",
 215                         G_CALLBACK(client_event), NULL);
 216
 217         /* Make the root window contain a pointer to the IPC window */
 218         gdk_property_change(gdk_get_default_root_window(), filer_atom,
 219                         gdk_x11_xatom_to_atom(XA_WINDOW), 32,
 220                         GDK_PROP_MODE_REPLACE,
 221                         (void *) &xwindow, 1);
 222
 223         XUngrabServer(GDK_DISPLAY());
 224
 225         /* Also have a property without the version number, for programs
 226          * that are happy to talk to any version of the filer.
 227          */
 228         unique_id = g_strdup_printf("_ROX_FILER_%d_%s",
 229                                 (int) euid, our_host_name());
 230         filer_atom_any = gdk_atom_intern(unique_id, FALSE);
 231         g_free(unique_id);
 232         /* On the IPC window... */
 233         gdk_property_change(ipc_window->window, filer_atom_any,
 234                         gdk_x11_xatom_to_atom(XA_WINDOW), 32,
 235                         GDK_PROP_MODE_REPLACE,
 236                         (void *) &xwindow, 1);
 237         /* ... and on the root */
 238         gdk_property_change(gdk_get_default_root_window(), filer_atom_any,
 239                         gdk_x11_xatom_to_atom(XA_WINDOW), 32,
 240                         GDK_PROP_MODE_REPLACE,
 241                         (void *) &xwindow, 1);
 242
 243         return FALSE;
 244 }
 245
 246 /* Executes the RPC call(s) in the given SOAP message and returns
 247  * the reply.
 248  */
 249 xmlDocPtr run_soap(xmlDocPtr soap)
 250 {
 251         xmlNodePtr body, node, rep_body, reply;
 252         xmlDocPtr rep_doc = NULL;
 253
 254         g_return_val_if_fail(soap != NULL, NULL);
 255
 256         /* Make sure we don't quit before doing the whole list
 257          * (there's a command that closes windows)
 258          */
 259         number_of_windows++;
 260
 261         node = xmlDocGetRootElement(soap);
 262         if (!node->ns)
 263                 goto bad_soap;
 264
 265         if (strcmp(node->ns->href, SOAP_ENV_NS) != 0 &&
 266             strcmp(node->ns->href, SOAP_ENV_NS_OLD) != 0)
 267                 goto bad_soap;
 268
 269         body = get_subnode(node, SOAP_ENV_NS, "Body");
 270         if (!body)
 271                 body = get_subnode(node, SOAP_ENV_NS_OLD, "Body");
 272         if (!body)
 273                 goto bad_soap;
 274
 275         for (node = body->xmlChildrenNode; node; node = node->next)
 276         {
 277                 if (node->type != XML_ELEMENT_NODE)
 278                         continue;
 279
 280                 if (node->ns == NULL || strcmp(node->ns->href, ROX_NS) != 0)
 281                 {
 282                         g_warning("Unknown namespace %s",
 283                                         node->ns ? node->ns->href
 284                                                  : (xmlChar *) "(none)");
 285                         continue;
 286                 }
 287
 288                 reply = soap_invoke(node);
 289
 290                 if (reply)
 291                 {
 292                         if (!rep_doc)
 293                                 rep_doc = soap_new(&rep_body);
 294                         xmlAddChild(rep_body, reply);
 295                 }
 296         }
 297
 298         goto out;
 299
 300 bad_soap:
 301         g_warning("Bad SOAP message received!");
 302
 303 out:
 304         number_of_windows--;
 305
 306         return rep_doc;
 307 }
 308
 309
 310 /****************************************************************
 311  *                      INTERNAL FUNCTIONS                      *
 312  ****************************************************************/
 313
 314 /* Register this function to handle SOAP calls to method 'name'.
 315  * 'req' and 'opt' are comma separated lists of argument names, in the order
 316  * that they are to be delivered to the function.
 317  * NULL will be passed for an opt argument if not given.
 318  * Otherwise, the parameter is the xmlNode from the call.
 319  */
 320 static void soap_register(char *name, SOAP_func func, char *req, char *opt)
 321 {
 322         SOAP_call *call;
 323
 324         call = g_new(SOAP_call, 1);
 325         call->func = func;
 326         call->required_args = req ? g_strsplit(req, ",", 0) : NULL;
 327         call->optional_args = opt ? g_strsplit(opt, ",", 0) : NULL;
 328
 329         g_hash_table_insert(rpc_calls, g_strdup(name), call);
 330 }
 331
 332 /* Get the remote IPC window of the already-running filer if there
 333  * is one.
 334  */
 335 static GdkWindow *get_existing_ipc_window(void)
 336 {
 337         Window          xid, xid_confirm;
 338         GdkWindow       *window;
 339
 340         if (!get_ipc_property(gdk_get_default_root_window(), &xid))
 341                 return NULL;
 342
 343         if (gdk_window_lookup(xid))
 344                 return NULL;    /* Stale handle which we now own */
 345
 346         window = gdk_window_foreign_new(xid);
 347         if (!window)
 348                 return NULL;
 349
 350         if (!get_ipc_property(window, &xid_confirm) || xid_confirm != xid)
 351                 return NULL;
 352
 353         return window;
 354 }
 355
 356 /* Returns the 'rox_atom' property of 'window' */
 357 static gboolean get_ipc_property(GdkWindow *window, Window *r_xid)
 358 {
 359         guchar          *data;
 360         gint            format, length;
 361         gboolean        retval = FALSE;
 362
 363         if (gdk_property_get(window, filer_atom,
 364                         gdk_x11_xatom_to_atom(XA_WINDOW), 0, 4,
 365                         FALSE, NULL, &format, &length, &data) && data)
 366         {
 367                 /* Note: values with format=32 are stored as longs client-side,
 368                  * which may be more than 32 bits on some systems.
 369                  */
 370                 if (format == 32 && length >= 4)
 371                 {
 372                         retval = TRUE;
 373                         *r_xid = *((Window *) data);
 374                 }
 375                 g_free(data);
 376         }
 377
 378         return retval;
 379 }
 380
 381 static char *read_property(GdkWindow *window, GdkAtom prop, gint *out_length)
 382 {
 383         gint    grab_len = 4096;
 384         gint    length;
 385         guchar  *data;
 386         guchar  *retval = NULL;
 387
 388         gdk_error_trap_push();
 389
 390         while (!retval)
 391         {
 392                 if (!(gdk_property_get(window, prop,
 393                                 gdk_x11_xatom_to_atom(XA_STRING), 0, grab_len,
 394                                 FALSE, NULL, NULL,
 395                                 &length, &data) && data))
 396                         goto out;       /* Error? */
 397
 398                 if (length >= grab_len)
 399                 {
 400                         /* Didn't get all of it - try again */
 401                         grab_len <<= 1;
 402                         g_free(data);
 403                         continue;
 404                 }
 405
 406                 data = g_realloc(data, length + 1);
 407                 data[length] = '\0';    /* libxml seems to need this */
 408                 *out_length = length;
 409
 410                 retval = data;
 411         }
 412 out:
 413
 414         if (gdk_error_trap_pop() == Success)
 415                 return retval;
 416
 417         g_warning("Error reading %s property!", gdk_atom_name(prop));
 418
 419         g_free(retval);
 420         return NULL;
 421 }
 422
 423 static gboolean client_event(GtkWidget *window,
 424                                  GdkEventClient *event,
 425                                  gpointer user_data)
 426 {
 427         GdkWindow *src_window;
 428         GdkAtom prop;
 429         xmlDocPtr reply;
 430         guchar  *data;
 431         gint    length;
 432         xmlDocPtr doc;
 433
 434         if (event->message_type != xsoap)
 435                 return FALSE;
 436
 437         src_window = gdk_window_foreign_new(event->data.l[0]);
 438         if (!src_window)
 439         {
 440                 g_warning("SOAP message sender window was destroyed before I \n"
 441                           "could read it.");
 442                 return FALSE;
 443         }
 444         prop = gdk_x11_xatom_to_atom(event->data.l[1]);
 445
 446         data = read_property(src_window, prop, &length);
 447         if (!data)
 448                 return TRUE;
 449
 450         doc = xmlParseMemory(g_strndup(data, length), length);
 451         g_free(data);
 452
 453         reply = run_soap(doc);
 454         if (number_of_windows == 0)
 455                 gtk_main_quit();
 456
 457         xmlFreeDoc(doc);
 458
 459         if (reply)
 460         {
 461                 /* Send reply back... */
 462                 xmlChar *mem;
 463                 int     size;
 464
 465                 xmlDocDumpMemory(reply, &mem, &size);
 466                 g_return_val_if_fail(size > 0, TRUE);
 467
 468                 gdk_error_trap_push();
 469                 gdk_property_change(src_window, prop,
 470                         gdk_x11_xatom_to_atom(XA_STRING), 8,
 471                         GDK_PROP_MODE_REPLACE, mem, size);
 472                 g_free(mem);
 473                 gdk_flush();
 474                 if (gdk_error_trap_pop() != Success)
 475                         g_warning("Failed to send SOAP reply!");
 476         }
 477         else
 478         {
 479                 gdk_error_trap_push();
 480                 gdk_property_delete(src_window, prop);
 481                 gdk_flush();
 482                 if (gdk_error_trap_pop() != Success)
 483                         g_warning("Failed to send SOAP reply!");
 484         }
 485
 486         return TRUE;
 487 }
 488
 489 /* Some handy functions for processing SOAP RPC arguments... */
 490
 491 /* Returns TRUE, FALSE, or -1 (if argument is unspecified) */
 492 static int bool_value(xmlNode *arg)
 493 {
 494         int answer;
 495         char *optval;
 496
 497         if (!arg)
 498                 return -1;
 499
 500         optval = xmlNodeGetContent(arg);
 501         answer = text_to_boolean(optval, -1);   /* XXX: Report error? */
 502         g_free(optval);
 503
 504         return answer;
 505 }
 506
 507 /* Returns the text of this arg as a string, or NULL if the (optional)
 508  * argument wasn't supplied. Returns "" if the arg is empty.
 509  * g_free() the result.
 510  */
 511 static char *string_value(xmlNode *arg)
 512 {
 513         char *retval;
 514
 515         if (!arg)
 516                 return NULL;
 517
 518         retval = xmlNodeGetContent(arg);
 519
 520         return retval ? retval : g_strdup("");
 521 }
 522
 523 /* Returns the text of this arg as an int, or the default value if not
 524  * supplied or not an int.
 525  */
 526 static int int_value(xmlNode *arg, int def)
 527 {
 528         char *str, *end;
 529         int i;
 530
 531         if (!arg)
 532                 return def;
 533
 534         str = xmlNodeGetContent(arg);
 535         if (!str || !str[0])
 536                 return def;
 537
 538         i = (int) strtol(str, &end, 0);
 539
 540         return (end > str) ? i : def;
 541 }
 542
 543 /* Return a list of strings, one for each child node of arg.
 544  * g_list_free the list, and g_free each string.
 545  */
 546 static GList *list_value(xmlNode *arg)
 547 {
 548         GList *list = NULL;
 549         xmlNode *node;
 550
 551         for (node = arg->xmlChildrenNode; node; node = node->next)
 552         {
 553                 if (node->type != XML_ELEMENT_NODE)
 554                         continue;
 555
 556                 list = g_list_append(list, string_value(node));
 557         }
 558
 559         return list;
 560 }
 561
 562 #define ARG(n) ((xmlNode *) g_list_nth(args, n)->data)
 563
 564 /* The RPC handlers all work in the same way -- they get passed a list of
 565  * xmlNode arguments from the RPC call and they return the result node, or
 566  * NULL if there isn't a result.
 567  */
 568
 569 static xmlNodePtr rpc_Version(GList *args)
 570 {
 571         xmlNodePtr reply;
 572
 573         reply = xmlNewNode(NULL, "rox:VersionResponse");
 574         xmlNewNs(reply, SOAP_RPC_NS, "soap");
 575         xmlNewTextChild(reply, NULL, "soap:result", VERSION);
 576
 577         return reply;
 578 }
 579
 580 /* Args: Path, [Style, Details, Sort, Class, Window] */
 581 static xmlNodePtr rpc_OpenDir(GList *args)
 582 {
 583         char       *path;
 584         char       *style, *details, *sort, *class, *window;
 585         int         hidden=FALSE;
 586         char       *filter_string=NULL;
 587         FilerWindow *fwin = NULL;
 588
 589         path = string_value(ARG(0));
 590         class = string_value(ARG(4));
 591         window = string_value(ARG(5));
 592
 593         if (window)
 594                 fwin = filer_get_by_id(window);
 595
 596         if (!fwin)
 597         {
 598                 fwin = filer_opendir(path, NULL, class);
 599                 if (window)
 600                         filer_set_id(fwin, window);
 601         }
 602         else
 603                 filer_change_to(fwin, path, NULL);
 604
 605         g_free(path);
 606         g_free(class);
 607         g_free(window);
 608         if (!fwin)
 609                 return NULL;
 610
 611         style = string_value(ARG(1));
 612         details = string_value(ARG(2));
 613         sort = string_value(ARG(3));
 614         hidden = bool_value(ARG(6));
 615         filter_string = string_value(ARG(7));
 616
 617         if (style)
 618         {
 619                 DisplayStyle ds;
 620
 621                 ds = !g_strcasecmp(style, "Large") ? LARGE_ICONS :
 622                      !g_strcasecmp(style, "Small") ? SMALL_ICONS :
 623                      !g_strcasecmp(style, "Huge")  ? HUGE_ICONS :
 624                      !g_strcasecmp(style, "Automatic")  ? AUTO_SIZE_ICONS :
 625                                                      UNKNOWN_STYLE;
 626                 if (ds == UNKNOWN_STYLE)
 627                         delayed_error(_("Unknown style '%s'"), style);
 628                 else
 629                         display_set_layout(fwin, ds, fwin->details_type, TRUE);
 630
 631                 g_free(style);
 632         }
 633
 634         if (details)
 635         {
 636                 DetailsType dt;
 637                 ViewType view_type;
 638
 639                 dt = !g_strcasecmp(details, "None") ? DETAILS_NONE :
 640                      !g_strcasecmp(details, "ListView") ? DETAILS_NONE :
 641                      !g_strcasecmp(details, "Size") ? DETAILS_SIZE :
 642                      !g_strcasecmp(details, "Type") ? DETAILS_TYPE :
 643                      !g_strcasecmp(details, "Times") ? DETAILS_TIMES :
 644                      !g_strcasecmp(details, "Permissions")
 645                                                 ? DETAILS_PERMISSIONS :
 646                                                   DETAILS_UNKNOWN;
 647
 648                 if (dt == DETAILS_UNKNOWN)
 649                         delayed_error(_("Unknown details type '%s'"), details);
 650                 else
 651                         display_set_layout(fwin, fwin->display_style_wanted,
 652                                            dt, TRUE);
 653
 654                 if (g_strcasecmp(details, "ListView") == 0)
 655                         view_type = VIEW_TYPE_DETAILS;
 656                 else
 657                         view_type = VIEW_TYPE_COLLECTION;
 658
 659                 if (view_type != fwin->view_type)
 660                         filer_set_view_type(fwin, view_type);
 661
 662                 g_free(details);
 663         }
 664
 665         if (sort)
 666         {
 667                 SortType type;
 668
 669                 type = !g_strcasecmp(sort, "Name") ? SORT_NAME :
 670                        !g_strcasecmp(sort, "Type") ? SORT_TYPE :
 671                        !g_strcasecmp(sort, "Date") ? SORT_DATE :
 672                        !g_strcasecmp(sort, "Size") ? SORT_SIZE :
 673                        !g_strcasecmp(sort, "Owner") ? SORT_OWNER :
 674                        !g_strcasecmp(sort, "Group") ? SORT_GROUP :
 675                                                        -1;
 676                 if (type == -1)
 677                         delayed_error(_("Unknown sorting type '%s'"), sort);
 678                 else
 679                         display_set_sort_type(fwin, type, GTK_SORT_ASCENDING);
 680
 681                 g_free(sort);
 682         }
 683         if (hidden!=-1)
 684         {
 685                 display_set_hidden(fwin, hidden);
 686         }
 687
 688         if (filter_string)
 689                 display_set_filter(fwin, FILER_SHOW_GLOB, filter_string);
 690         else
 691                 display_set_filter(fwin, FILER_SHOW_ALL, NULL);
 692
 693         return NULL;
 694 }
 695
 696 static xmlNodePtr rpc_Run(GList *args)
 697 {
 698         char       *path;
 699
 700         path = string_value(ARG(0));
 701         run_by_path(path);
 702         g_free(path);
 703
 704         return NULL;
 705 }
 706
 707 static xmlNodePtr rpc_CloseDir(GList *args)
 708 {
 709         char       *path;
 710
 711         path = string_value(ARG(0));
 712         filer_close_recursive(path);
 713         g_free(path);
 714
 715         return NULL;
 716 }
 717
 718 static xmlNodePtr rpc_Examine(GList *args)
 719 {
 720         char       *path;
 721
 722         path = string_value(ARG(0));
 723         examine(path);
 724         g_free(path);
 725
 726         return NULL;
 727 }
 728
 729 static xmlNodePtr rpc_Show(GList *args)
 730 {
 731         char       *dir, *leaf;
 732
 733         dir = string_value(ARG(0));
 734         leaf = string_value(ARG(1));
 735
 736         /* XXX: Seems silly to join them only to split again later... */
 737         open_to_show(make_path(dir, leaf));
 738
 739         g_free(dir);
 740         g_free(leaf);
 741
 742         return NULL;
 743 }
 744
 745 static xmlNodePtr rpc_Pinboard(GList *args)
 746 {
 747         char *name = NULL;
 748
 749         name = string_value(ARG(0));
 750         pinboard_activate(name);
 751         g_free(name);
 752
 753         return NULL;
 754 }
 755
 756 /* args = Filename, Style */
 757 static xmlNodePtr rpc_SetBackdrop(GList *args)
 758 {
 759         char *file;
 760         char *style;
 761         BackdropStyle s;
 762
 763         file = string_value(ARG(0));
 764         style = string_value(ARG(1));
 765
 766         s = !g_strcasecmp(style, "Tile") ? BACKDROP_TILE :
 767             !g_strcasecmp(style, "Scale") ? BACKDROP_SCALE :
 768             !g_strcasecmp(style, "Stretch") ? BACKDROP_STRETCH :
 769             !g_strcasecmp(style, "Centre") ? BACKDROP_CENTRE :
 770                                              BACKDROP_NONE;
 771
 772         if (s == BACKDROP_NONE)
 773                 g_warning("Invalid style '%s' for backdrop", style);
 774         else
 775                 pinboard_set_backdrop(file, s);
 776
 777         g_free(file);
 778         g_free(style);
 779
 780         return NULL;
 781 }
 782
 783 /* args = App */
 784 static xmlNodePtr rpc_SetBackdropApp(GList *args)
 785 {
 786         char *app;
 787
 788         app = string_value(ARG(0));
 789
 790         pinboard_set_backdrop_app(app);
 791
 792         g_free(app);
 793
 794         return NULL;
 795 }
 796
 797 /* args = Path, X, Y, [Label] */
 798 static xmlNodePtr rpc_PinboardAdd(GList *args)
 799 {
 800         char *path = NULL;
 801         gchar *name, *shortcut, *xargs;
 802         int x, y;
 803
 804         path = string_value(ARG(0));
 805         x = int_value(ARG(1), 0);
 806         y = int_value(ARG(2), 0);
 807         name = string_value(ARG(3));
 808         shortcut = string_value(ARG(4));
 809         xargs = string_value(ARG(5));
 810
 811         pinboard_pin_with_args(path, name, x, y, shortcut, xargs);
 812
 813         g_free(path);
 814         g_free(name);
 815         g_free(shortcut);
 816         g_free(xargs);
 817
 818         return NULL;
 819 }
 820
 821 /* args = Path, [Label] */
 822 static xmlNodePtr rpc_PinboardRemove(GList *args)
 823 {
 824         char *path = NULL;
 825         gchar *name;
 826
 827         path = string_value(ARG(0));
 828         name = string_value(ARG(1));
 829
 830         pinboard_remove(path, name);
 831
 832         g_free(path);
 833         if(name)
 834                 g_free(name);
 835
 836         return NULL;
 837 }
 838
 839 /* args = Side, [Name] */
 840 static xmlNodePtr rpc_Panel(GList *args)
 841 {
 842         PanelSide side;
 843         char *name, *side_name;
 844
 845         side_name = string_value(ARG(0));
 846         if (side_name)
 847         {
 848                 side = panel_name_to_side(side_name);
 849                 g_free(side_name);
 850                 g_return_val_if_fail(side != PANEL_NUMBER_OF_SIDES, NULL);
 851         }
 852         else
 853                 side = PANEL_DEFAULT_SIDE;
 854
 855         name = string_value(ARG(1));
 856
 857         panel_new(name, side);
 858
 859         g_free(name);
 860
 861         return NULL;
 862 }
 863
 864 /* args = Side, Path, [Label, After] */
 865 static xmlNodePtr rpc_PanelAdd(GList *args)
 866 {
 867         PanelSide side;
 868         char *path, *side_name, *label, *shortcut, *arg;
 869         gboolean after = FALSE;
 870         int tmp;
 871
 872         side_name = string_value(ARG(0));
 873         side = panel_name_to_side(side_name);
 874         g_free(side_name);
 875         g_return_val_if_fail(side != PANEL_NUMBER_OF_SIDES, NULL);
 876
 877         path = string_value(ARG(1));
 878         label = string_value(ARG(2));
 879
 880         tmp = bool_value(ARG(3));
 881         after = (tmp == -1) ? FALSE : tmp;
 882
 883         shortcut = string_value(ARG(4));
 884         arg = string_value(ARG(5));
 885
 886         panel_add(side, path, label, after, shortcut, arg);
 887
 888         g_free(path);
 889         g_free(label);
 890         g_free(shortcut);
 891         g_free(arg);
 892
 893         return NULL;
 894 }
 895
 896 static xmlNodePtr rpc_PanelRemove(GList *args)
 897 {
 898         PanelSide side;
 899         char *path, *side_name, *label;
 900
 901         side_name = string_value(ARG(0));
 902         side = panel_name_to_side(side_name);
 903         g_free(side_name);
 904         g_return_val_if_fail(side != PANEL_NUMBER_OF_SIDES, NULL);
 905
 906         path = string_value(ARG(1));
 907         label = string_value(ARG(2));
 908
 909         panel_remove_item(side, path, label);
 910
 911         g_free(path);
 912         g_free(label);
 913
 914         return NULL;
 915 }
 916
 917 static xmlNodePtr rpc_Copy(GList *args)
 918 {
 919         GList *from;
 920         char *to;
 921         char *leaf;
 922         int quiet;
 923
 924         from = list_value(ARG(0));
 925         to = string_value(ARG(1));
 926         leaf = string_value(ARG(2));
 927         quiet = bool_value(ARG(3));
 928
 929         if (from)
 930                 action_copy(from, to, leaf, quiet);
 931         else
 932                 g_warning("No files in SOAP request list");
 933
 934         destroy_glist(&from);
 935         g_free(to);
 936         g_free(leaf);
 937
 938         return NULL;
 939 }
 940
 941 static xmlNodePtr rpc_Move(GList *args)
 942 {
 943         GList *from;
 944         char *to;
 945         char *leaf;
 946         int quiet;
 947
 948         from = list_value(ARG(0));
 949         to = string_value(ARG(1));
 950         leaf = string_value(ARG(2));
 951         quiet = bool_value(ARG(3));
 952
 953         if (from)
 954                 action_move(from, to, leaf, quiet);
 955         else
 956                 g_warning("No files in SOAP request list");
 957
 958         destroy_glist(&from);
 959         g_free(to);
 960         g_free(leaf);
 961
 962         return NULL;
 963 }
 964
 965 static xmlNodePtr rpc_Link(GList *args)
 966 {
 967         GList *from;
 968         char *to;
 969         char *leaf;
 970
 971         from = list_value(ARG(0));
 972         to = string_value(ARG(1));
 973         leaf = string_value(ARG(2));
 974
 975         if (from)
 976                 action_link(from, to, leaf, TRUE);
 977         else
 978                 g_warning("No files in SOAP request list");
 979
 980         destroy_glist(&from);
 981         g_free(to);
 982         g_free(leaf);
 983
 984         return NULL;
 985 }
 986
 987 static xmlNodePtr rpc_FileType(GList *args)
 988 {
 989         MIME_type *type;
 990         char *path, *tname;
 991         xmlNodePtr reply;
 992
 993         path = string_value(ARG(0));
 994         type = type_get_type(path);
 995         g_free(path);
 996
 997         reply = xmlNewNode(NULL, "rox:FileTypeResponse");
 998         tname = g_strconcat(type->media_type, "/", type->subtype, NULL);
 999
1000         xmlNewNs(reply, SOAP_RPC_NS, "soap");
1001         xmlNewTextChild(reply, NULL, "soap:result", tname);
1002         g_free(tname);
1003
1004         return reply;
1005 }
1006
1007 static xmlNodePtr rpc_Mount(GList *args)
1008 {
1009         GList *paths;
1010         int     open_dir, quiet;
1011
1012         paths = list_value(ARG(0));
1013         open_dir = bool_value(ARG(1));
1014         quiet = bool_value(ARG(2));
1015
1016         if (open_dir == -1)
1017                 open_dir = TRUE;
1018
1019         if (paths)
1020                 action_mount(paths, open_dir, TRUE, quiet);
1021
1022         destroy_glist(&paths);
1023
1024         return NULL;
1025 }
1026
1027 static xmlNodePtr rpc_Unmount(GList *args)
1028 {
1029         GList *paths;
1030         int     quiet;
1031
1032         paths = list_value(ARG(0));
1033         quiet = bool_value(ARG(1));
1034
1035         if (paths)
1036                 action_mount(paths, FALSE, FALSE, quiet);
1037
1038         destroy_glist(&paths);
1039
1040         return NULL;
1041 }
1042
1043 /* The first time the property changes, do nothing (it's us setting the
1044  * property). The second time, get the result.
1045  * Don't call this function three times!
1046  */
1047 static void soap_done(GtkWidget *widget, GdkEventProperty *event, gpointer data)
1048 {
1049         static int times_called = 0;
1050         GdkAtom prop = (GdkAtom) data;
1051
1052         if (prop != event->atom)
1053                 return;
1054
1055         times_called++;
1056         g_return_if_fail(times_called < 3);
1057
1058         if (times_called == 1)
1059                 return;
1060
1061         /* If we got a reply, display it here */
1062         if (event->state == GDK_PROPERTY_NEW_VALUE)
1063         {
1064                 gint length;
1065
1066                 data = read_property(event->window, event->atom, &length);
1067
1068                 if (data)
1069                         puts(data);
1070         }
1071
1072         gtk_main_quit();
1073 }
1074
1075 static gboolean too_slow(gpointer data)
1076 {
1077         g_warning("Existing ROX-Filer process is not responding! Try with -n");
1078         gtk_main_quit();
1079
1080         return 0;
1081 }
1082
1083 /* Send the SOAP message in property 'prop' on 'from' to 'dest' */
1084 static void soap_send(GtkWidget *from, GdkAtom prop, GdkWindow *dest)
1085 {
1086         GdkEventClient event;
1087
1088         event.data.l[0] = GDK_WINDOW_XWINDOW(from->window);
1089         event.data.l[1] = gdk_x11_atom_to_xatom(prop);
1090         event.data_format = 32;
1091         event.message_type = xsoap;
1092
1093         gdk_event_send_client_message((GdkEvent *) &event,
1094                                       GDK_WINDOW_XWINDOW(dest));
1095
1096         g_timeout_add(10000, too_slow, NULL);
1097
1098         gtk_main();
1099 }
1100
1101 /* Lookup this method in rpc_calls and invoke it.
1102  * Returns the SOAP reply or fault, or NULL if this method
1103  * doesn't return anything.
1104  */
1105 static xmlNodePtr soap_invoke(xmlNode *method)
1106 {
1107         GList *args = NULL;
1108         SOAP_call *call;
1109         gchar **arg;
1110         xmlNodePtr retval = NULL;
1111         GHashTable *name_to_node;
1112         xmlNode *node;
1113
1114         call = g_hash_table_lookup(rpc_calls, method->name);
1115         if (!call)
1116         {
1117                 xmlNodePtr reply;
1118                 gchar *err;
1119
1120                 err = g_strdup_printf(_("Attempt to invoke unknown SOAP "
1121                                         "method '%s'"), method->name);
1122                 reply = xmlNewNode(NULL, "env:Fault");
1123                 xmlNewNs(reply, SOAP_RPC_NS, "rpc");
1124                 xmlNewNs(reply, SOAP_ENV_NS, "env");
1125                 xmlNewTextChild(reply, NULL, "faultcode",
1126                                                 "rpc:ProcedureNotPresent");
1127                 xmlNewTextChild(reply, NULL, "faultstring", err);
1128                 g_free(err);
1129                 return reply;
1130         }
1131
1132         name_to_node = g_hash_table_new(g_str_hash, g_str_equal);
1133         for (node = method->xmlChildrenNode; node; node = node->next)
1134         {
1135                 if (node->type != XML_ELEMENT_NODE)
1136                         continue;
1137
1138                 if (node->ns == NULL || strcmp(node->ns->href, ROX_NS) != 0)
1139                         continue;
1140
1141                 g_hash_table_insert(name_to_node, (gchar *) node->name, node);
1142         }
1143
1144         if (call->required_args)
1145         {
1146                 for (arg = call->required_args; *arg; arg++)
1147                 {
1148                         node = g_hash_table_lookup(name_to_node, *arg);
1149                         if (!node)
1150                         {
1151                                 g_warning("Missing required argument '%s' "
1152                                         "in call to method '%s'", *arg,
1153                                         method->name);
1154                                 goto out;
1155                         }
1156
1157                         args = g_list_append(args, node);
1158                 }
1159         }
1160
1161         if (call->optional_args)
1162         {
1163                 for (arg = call->optional_args; *arg; arg++)
1164                         args = g_list_append(args,
1165                                 g_hash_table_lookup(name_to_node, *arg));
1166         }
1167
1168         retval = call->func(args);
1169
1170 out:
1171         g_hash_table_destroy(name_to_node);
1172         g_list_free(args);
1173
1174         return retval;
1175 }