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                 if (format == 32 && length == 4)
 368                 {
 369                         retval = TRUE;
 370                         *r_xid = *((Window *) data);
 371                 }
 372                 g_free(data);
 373         }
 374
 375         return retval;
 376 }
 377
 378 static char *read_property(GdkWindow *window, GdkAtom prop, gint *out_length)
 379 {
 380         gint    grab_len = 4096;
 381         gint    length;
 382         guchar  *data;
 383         guchar  *retval = NULL;
 384
 385         gdk_error_trap_push();
 386
 387         while (!retval)
 388         {
 389                 if (!(gdk_property_get(window, prop,
 390                                 gdk_x11_xatom_to_atom(XA_STRING), 0, grab_len,
 391                                 FALSE, NULL, NULL,
 392                                 &length, &data) && data))
 393                         goto out;       /* Error? */
 394
 395                 if (length >= grab_len)
 396                 {
 397                         /* Didn't get all of it - try again */
 398                         grab_len <<= 1;
 399                         g_free(data);
 400                         continue;
 401                 }
 402
 403                 data = g_realloc(data, length + 1);
 404                 data[length] = '\0';    /* libxml seems to need this */
 405                 *out_length = length;
 406
 407                 retval = data;
 408         }
 409 out:
 410
 411         if (gdk_error_trap_pop() == Success)
 412                 return retval;
 413
 414         g_warning("Error reading %s property!", gdk_atom_name(prop));
 415
 416         g_free(retval);
 417         return NULL;
 418 }
 419
 420 static gboolean client_event(GtkWidget *window,
 421                                  GdkEventClient *event,
 422                                  gpointer user_data)
 423 {
 424         GdkWindow *src_window;
 425         GdkAtom prop;
 426         xmlDocPtr reply;
 427         guchar  *data;
 428         gint    length;
 429         xmlDocPtr doc;
 430
 431         if (event->message_type != xsoap)
 432                 return FALSE;
 433
 434         src_window = gdk_window_foreign_new(event->data.l[0]);
 435         if (!src_window)
 436         {
 437                 g_warning("SOAP message sender window was destroyed before I \n"
 438                           "could read it.");
 439                 return FALSE;
 440         }
 441         prop = gdk_x11_xatom_to_atom(event->data.l[1]);
 442
 443         data = read_property(src_window, prop, &length);
 444         if (!data)
 445                 return TRUE;
 446
 447         doc = xmlParseMemory(g_strndup(data, length), length);
 448         g_free(data);
 449
 450         reply = run_soap(doc);
 451         if (number_of_windows == 0)
 452                 gtk_main_quit();
 453
 454         xmlFreeDoc(doc);
 455
 456         if (reply)
 457         {
 458                 /* Send reply back... */
 459                 xmlChar *mem;
 460                 int     size;
 461
 462                 xmlDocDumpMemory(reply, &mem, &size);
 463                 g_return_val_if_fail(size > 0, TRUE);
 464
 465                 gdk_error_trap_push();
 466                 gdk_property_change(src_window, prop,
 467                         gdk_x11_xatom_to_atom(XA_STRING), 8,
 468                         GDK_PROP_MODE_REPLACE, mem, size);
 469                 g_free(mem);
 470                 gdk_flush();
 471                 if (gdk_error_trap_pop() != Success)
 472                         g_warning("Failed to send SOAP reply!");
 473         }
 474         else
 475         {
 476                 gdk_error_trap_push();
 477                 gdk_property_delete(src_window, prop);
 478                 gdk_flush();
 479                 if (gdk_error_trap_pop() != Success)
 480                         g_warning("Failed to send SOAP reply!");
 481         }
 482
 483         return TRUE;
 484 }
 485
 486 /* Some handy functions for processing SOAP RPC arguments... */
 487
 488 /* Returns TRUE, FALSE, or -1 (if argument is unspecified) */
 489 static int bool_value(xmlNode *arg)
 490 {
 491         int answer;
 492         char *optval;
 493
 494         if (!arg)
 495                 return -1;
 496
 497         optval = xmlNodeGetContent(arg);
 498         answer = text_to_boolean(optval, -1);   /* XXX: Report error? */
 499         g_free(optval);
 500
 501         return answer;
 502 }
 503
 504 /* Returns the text of this arg as a string, or NULL if the (optional)
 505  * argument wasn't supplied. Returns "" if the arg is empty.
 506  * g_free() the result.
 507  */
 508 static char *string_value(xmlNode *arg)
 509 {
 510         char *retval;
 511
 512         if (!arg)
 513                 return NULL;
 514
 515         retval = xmlNodeGetContent(arg);
 516
 517         return retval ? retval : g_strdup("");
 518 }
 519
 520 /* Returns the text of this arg as an int, or the default value if not
 521  * supplied or not an int.
 522  */
 523 static int int_value(xmlNode *arg, int def)
 524 {
 525         char *str, *end;
 526         int i;
 527
 528         if (!arg)
 529                 return def;
 530
 531         str = xmlNodeGetContent(arg);
 532         if (!str || !str[0])
 533                 return def;
 534
 535         i = (int) strtol(str, &end, 0);
 536
 537         return (end > str) ? i : def;
 538 }
 539
 540 /* Return a list of strings, one for each child node of arg.
 541  * g_list_free the list, and g_free each string.
 542  */
 543 static GList *list_value(xmlNode *arg)
 544 {
 545         GList *list = NULL;
 546         xmlNode *node;
 547
 548         for (node = arg->xmlChildrenNode; node; node = node->next)
 549         {
 550                 if (node->type != XML_ELEMENT_NODE)
 551                         continue;
 552
 553                 list = g_list_append(list, string_value(node));
 554         }
 555
 556         return list;
 557 }
 558
 559 #define ARG(n) ((xmlNode *) g_list_nth(args, n)->data)
 560
 561 /* The RPC handlers all work in the same way -- they get passed a list of
 562  * xmlNode arguments from the RPC call and they return the result node, or
 563  * NULL if there isn't a result.
 564  */
 565
 566 static xmlNodePtr rpc_Version(GList *args)
 567 {
 568         xmlNodePtr reply;
 569
 570         reply = xmlNewNode(NULL, "rox:VersionResponse");
 571         xmlNewNs(reply, SOAP_RPC_NS, "soap");
 572         xmlNewTextChild(reply, NULL, "soap:result", VERSION);
 573
 574         return reply;
 575 }
 576
 577 /* Args: Path, [Style, Details, Sort, Class, Window] */
 578 static xmlNodePtr rpc_OpenDir(GList *args)
 579 {
 580         char       *path;
 581         char       *style, *details, *sort, *class, *window;
 582         int         hidden=FALSE;
 583         char       *filter_string=NULL;
 584         FilerWindow *fwin = NULL;
 585
 586         path = string_value(ARG(0));
 587         class = string_value(ARG(4));
 588         window = string_value(ARG(5));
 589
 590         if (window)
 591                 fwin = filer_get_by_id(window);
 592
 593         if (!fwin)
 594         {
 595                 fwin = filer_opendir(path, NULL, class);
 596                 if (window)
 597                         filer_set_id(fwin, window);
 598         }
 599         else
 600                 filer_change_to(fwin, path, NULL);
 601
 602         g_free(path);
 603         g_free(class);
 604         g_free(window);
 605         if (!fwin)
 606                 return NULL;
 607
 608         style = string_value(ARG(1));
 609         details = string_value(ARG(2));
 610         sort = string_value(ARG(3));
 611         hidden = bool_value(ARG(6));
 612         filter_string = string_value(ARG(7));
 613
 614         if (style)
 615         {
 616                 DisplayStyle ds;
 617
 618                 ds = !g_strcasecmp(style, "Large") ? LARGE_ICONS :
 619                      !g_strcasecmp(style, "Small") ? SMALL_ICONS :
 620                      !g_strcasecmp(style, "Huge")  ? HUGE_ICONS :
 621                      !g_strcasecmp(style, "Automatic")  ? AUTO_SIZE_ICONS :
 622                                                      UNKNOWN_STYLE;
 623                 if (ds == UNKNOWN_STYLE)
 624                         delayed_error(_("Unknown style '%s'"), style);
 625                 else
 626                         display_set_layout(fwin, ds, fwin->details_type, TRUE);
 627
 628                 g_free(style);
 629         }
 630
 631         if (details)
 632         {
 633                 DetailsType dt;
 634                 ViewType view_type;
 635
 636                 dt = !g_strcasecmp(details, "None") ? DETAILS_NONE :
 637                      !g_strcasecmp(details, "ListView") ? DETAILS_NONE :
 638                      !g_strcasecmp(details, "Size") ? DETAILS_SIZE :
 639                      !g_strcasecmp(details, "Type") ? DETAILS_TYPE :
 640                      !g_strcasecmp(details, "Times") ? DETAILS_TIMES :
 641                      !g_strcasecmp(details, "Permissions")
 642                                                 ? DETAILS_PERMISSIONS :
 643                                                   DETAILS_UNKNOWN;
 644
 645                 if (dt == DETAILS_UNKNOWN)
 646                         delayed_error(_("Unknown details type '%s'"), details);
 647                 else
 648                         display_set_layout(fwin, fwin->display_style_wanted,
 649                                            dt, TRUE);
 650
 651                 if (g_strcasecmp(details, "ListView") == 0)
 652                         view_type = VIEW_TYPE_DETAILS;
 653                 else
 654                         view_type = VIEW_TYPE_COLLECTION;
 655
 656                 if (view_type != fwin->view_type)
 657                         filer_set_view_type(fwin, view_type);
 658
 659                 g_free(details);
 660         }
 661
 662         if (sort)
 663         {
 664                 SortType type;
 665
 666                 type = !g_strcasecmp(sort, "Name") ? SORT_NAME :
 667                        !g_strcasecmp(sort, "Type") ? SORT_TYPE :
 668                        !g_strcasecmp(sort, "Date") ? SORT_DATE :
 669                        !g_strcasecmp(sort, "Size") ? SORT_SIZE :
 670                        !g_strcasecmp(sort, "Owner") ? SORT_OWNER :
 671                        !g_strcasecmp(sort, "Group") ? SORT_GROUP :
 672                                                        -1;
 673                 if (type == -1)
 674                         delayed_error(_("Unknown sorting type '%s'"), sort);
 675                 else
 676                         display_set_sort_type(fwin, type, GTK_SORT_ASCENDING);
 677
 678                 g_free(sort);
 679         }
 680         if (hidden!=-1)
 681         {
 682                 display_set_hidden(fwin, hidden);
 683         }
 684
 685         if (filter_string)
 686                 display_set_filter(fwin, FILER_SHOW_GLOB, filter_string);
 687         else
 688                 display_set_filter(fwin, FILER_SHOW_ALL, NULL);
 689
 690         return NULL;
 691 }
 692
 693 static xmlNodePtr rpc_Run(GList *args)
 694 {
 695         char       *path;
 696
 697         path = string_value(ARG(0));
 698         run_by_path(path);
 699         g_free(path);
 700
 701         return NULL;
 702 }
 703
 704 static xmlNodePtr rpc_CloseDir(GList *args)
 705 {
 706         char       *path;
 707
 708         path = string_value(ARG(0));
 709         filer_close_recursive(path);
 710         g_free(path);
 711
 712         return NULL;
 713 }
 714
 715 static xmlNodePtr rpc_Examine(GList *args)
 716 {
 717         char       *path;
 718
 719         path = string_value(ARG(0));
 720         examine(path);
 721         g_free(path);
 722
 723         return NULL;
 724 }
 725
 726 static xmlNodePtr rpc_Show(GList *args)
 727 {
 728         char       *dir, *leaf;
 729
 730         dir = string_value(ARG(0));
 731         leaf = string_value(ARG(1));
 732
 733         /* XXX: Seems silly to join them only to split again later... */
 734         open_to_show(make_path(dir, leaf));
 735
 736         g_free(dir);
 737         g_free(leaf);
 738
 739         return NULL;
 740 }
 741
 742 static xmlNodePtr rpc_Pinboard(GList *args)
 743 {
 744         char *name = NULL;
 745
 746         name = string_value(ARG(0));
 747         pinboard_activate(name);
 748         g_free(name);
 749
 750         return NULL;
 751 }
 752
 753 /* args = Filename, Style */
 754 static xmlNodePtr rpc_SetBackdrop(GList *args)
 755 {
 756         char *file;
 757         char *style;
 758         BackdropStyle s;
 759
 760         file = string_value(ARG(0));
 761         style = string_value(ARG(1));
 762
 763         s = !g_strcasecmp(style, "Tile") ? BACKDROP_TILE :
 764             !g_strcasecmp(style, "Scale") ? BACKDROP_SCALE :
 765             !g_strcasecmp(style, "Stretch") ? BACKDROP_STRETCH :
 766             !g_strcasecmp(style, "Centre") ? BACKDROP_CENTRE :
 767                                              BACKDROP_NONE;
 768
 769         if (s == BACKDROP_NONE)
 770                 g_warning("Invalid style '%s' for backdrop", style);
 771         else
 772                 pinboard_set_backdrop(file, s);
 773
 774         g_free(file);
 775         g_free(style);
 776
 777         return NULL;
 778 }
 779
 780 /* args = App */
 781 static xmlNodePtr rpc_SetBackdropApp(GList *args)
 782 {
 783         char *app;
 784
 785         app = string_value(ARG(0));
 786
 787         pinboard_set_backdrop_app(app);
 788
 789         g_free(app);
 790
 791         return NULL;
 792 }
 793
 794 /* args = Path, X, Y, [Label] */
 795 static xmlNodePtr rpc_PinboardAdd(GList *args)
 796 {
 797         char *path = NULL;
 798         gchar *name, *shortcut, *xargs;
 799         int x, y;
 800
 801         path = string_value(ARG(0));
 802         x = int_value(ARG(1), 0);
 803         y = int_value(ARG(2), 0);
 804         name = string_value(ARG(3));
 805         shortcut = string_value(ARG(4));
 806         xargs = string_value(ARG(5));
 807
 808         pinboard_pin_with_args(path, name, x, y, shortcut, xargs);
 809
 810         g_free(path);
 811         g_free(name);
 812         g_free(shortcut);
 813         g_free(xargs);
 814
 815         return NULL;
 816 }
 817
 818 /* args = Path, [Label] */
 819 static xmlNodePtr rpc_PinboardRemove(GList *args)
 820 {
 821         char *path = NULL;
 822         gchar *name;
 823
 824         path = string_value(ARG(0));
 825         name = string_value(ARG(1));
 826
 827         pinboard_remove(path, name);
 828
 829         g_free(path);
 830         if(name)
 831                 g_free(name);
 832
 833         return NULL;
 834 }
 835
 836 /* args = Side, [Name] */
 837 static xmlNodePtr rpc_Panel(GList *args)
 838 {
 839         PanelSide side;
 840         char *name, *side_name;
 841
 842         side_name = string_value(ARG(0));
 843         if (side_name)
 844         {
 845                 side = panel_name_to_side(side_name);
 846                 g_free(side_name);
 847                 g_return_val_if_fail(side != PANEL_NUMBER_OF_SIDES, NULL);
 848         }
 849         else
 850                 side = PANEL_DEFAULT_SIDE;
 851
 852         name = string_value(ARG(1));
 853
 854         panel_new(name, side);
 855
 856         g_free(name);
 857
 858         return NULL;
 859 }
 860
 861 /* args = Side, Path, [Label, After] */
 862 static xmlNodePtr rpc_PanelAdd(GList *args)
 863 {
 864         PanelSide side;
 865         char *path, *side_name, *label, *shortcut, *arg;
 866         gboolean after = FALSE;
 867         int tmp;
 868
 869         side_name = string_value(ARG(0));
 870         side = panel_name_to_side(side_name);
 871         g_free(side_name);
 872         g_return_val_if_fail(side != PANEL_NUMBER_OF_SIDES, NULL);
 873
 874         path = string_value(ARG(1));
 875         label = string_value(ARG(2));
 876
 877         tmp = bool_value(ARG(3));
 878         after = (tmp == -1) ? FALSE : tmp;
 879
 880         shortcut = string_value(ARG(4));
 881         arg = string_value(ARG(5));
 882
 883         panel_add(side, path, label, after, shortcut, arg);
 884
 885         g_free(path);
 886         g_free(label);
 887         g_free(shortcut);
 888         g_free(arg);
 889
 890         return NULL;
 891 }
 892
 893 static xmlNodePtr rpc_PanelRemove(GList *args)
 894 {
 895         PanelSide side;
 896         char *path, *side_name, *label;
 897
 898         side_name = string_value(ARG(0));
 899         side = panel_name_to_side(side_name);
 900         g_free(side_name);
 901         g_return_val_if_fail(side != PANEL_NUMBER_OF_SIDES, NULL);
 902
 903         path = string_value(ARG(1));
 904         label = string_value(ARG(2));
 905
 906         panel_remove_item(side, path, label);
 907
 908         g_free(path);
 909         g_free(label);
 910
 911         return NULL;
 912 }
 913
 914 static xmlNodePtr rpc_Copy(GList *args)
 915 {
 916         GList *from;
 917         char *to;
 918         char *leaf;
 919         int quiet;
 920
 921         from = list_value(ARG(0));
 922         to = string_value(ARG(1));
 923         leaf = string_value(ARG(2));
 924         quiet = bool_value(ARG(3));
 925
 926         if (from)
 927                 action_copy(from, to, leaf, quiet);
 928         else
 929                 g_warning("No files in SOAP request list");
 930
 931         destroy_glist(&from);
 932         g_free(to);
 933         g_free(leaf);
 934
 935         return NULL;
 936 }
 937
 938 static xmlNodePtr rpc_Move(GList *args)
 939 {
 940         GList *from;
 941         char *to;
 942         char *leaf;
 943         int quiet;
 944
 945         from = list_value(ARG(0));
 946         to = string_value(ARG(1));
 947         leaf = string_value(ARG(2));
 948         quiet = bool_value(ARG(3));
 949
 950         if (from)
 951                 action_move(from, to, leaf, quiet);
 952         else
 953                 g_warning("No files in SOAP request list");
 954
 955         destroy_glist(&from);
 956         g_free(to);
 957         g_free(leaf);
 958
 959         return NULL;
 960 }
 961
 962 static xmlNodePtr rpc_Link(GList *args)
 963 {
 964         GList *from;
 965         char *to;
 966         char *leaf;
 967
 968         from = list_value(ARG(0));
 969         to = string_value(ARG(1));
 970         leaf = string_value(ARG(2));
 971
 972         if (from)
 973                 action_link(from, to, leaf, TRUE);
 974         else
 975                 g_warning("No files in SOAP request list");
 976
 977         destroy_glist(&from);
 978         g_free(to);
 979         g_free(leaf);
 980
 981         return NULL;
 982 }
 983
 984 static xmlNodePtr rpc_FileType(GList *args)
 985 {
 986         MIME_type *type;
 987         char *path, *tname;
 988         xmlNodePtr reply;
 989
 990         path = string_value(ARG(0));
 991         type = type_get_type(path);
 992         g_free(path);
 993
 994         reply = xmlNewNode(NULL, "rox:FileTypeResponse");
 995         tname = g_strconcat(type->media_type, "/", type->subtype, NULL);
 996
 997         xmlNewNs(reply, SOAP_RPC_NS, "soap");
 998         xmlNewTextChild(reply, NULL, "soap:result", tname);
 999         g_free(tname);
1000
1001         return reply;
1002 }
1003
1004 static xmlNodePtr rpc_Mount(GList *args)
1005 {
1006         GList *paths;
1007         int     open_dir, quiet;
1008
1009         paths = list_value(ARG(0));
1010         open_dir = bool_value(ARG(1));
1011         quiet = bool_value(ARG(2));
1012
1013         if (open_dir == -1)
1014                 open_dir = TRUE;
1015
1016         if (paths)
1017                 action_mount(paths, open_dir, TRUE, quiet);
1018
1019         destroy_glist(&paths);
1020
1021         return NULL;
1022 }
1023
1024 static xmlNodePtr rpc_Unmount(GList *args)
1025 {
1026         GList *paths;
1027         int     quiet;
1028
1029         paths = list_value(ARG(0));
1030         quiet = bool_value(ARG(1));
1031
1032         if (paths)
1033                 action_mount(paths, FALSE, FALSE, quiet);
1034
1035         destroy_glist(&paths);
1036
1037         return NULL;
1038 }
1039
1040 /* The first time the property changes, do nothing (it's us setting the
1041  * property). The second time, get the result.
1042  * Don't call this function three times!
1043  */
1044 static void soap_done(GtkWidget *widget, GdkEventProperty *event, gpointer data)
1045 {
1046         static int times_called = 0;
1047         GdkAtom prop = (GdkAtom) data;
1048
1049         if (prop != event->atom)
1050                 return;
1051
1052         times_called++;
1053         g_return_if_fail(times_called < 3);
1054
1055         if (times_called == 1)
1056                 return;
1057
1058         /* If we got a reply, display it here */
1059         if (event->state == GDK_PROPERTY_NEW_VALUE)
1060         {
1061                 gint length;
1062
1063                 data = read_property(event->window, event->atom, &length);
1064
1065                 if (data)
1066                         puts(data);
1067         }
1068
1069         gtk_main_quit();
1070 }
1071
1072 static gboolean too_slow(gpointer data)
1073 {
1074         g_warning("Existing ROX-Filer process is not responding! Try with -n");
1075         gtk_main_quit();
1076
1077         return 0;
1078 }
1079
1080 /* Send the SOAP message in property 'prop' on 'from' to 'dest' */
1081 static void soap_send(GtkWidget *from, GdkAtom prop, GdkWindow *dest)
1082 {
1083         GdkEventClient event;
1084
1085         event.data.l[0] = GDK_WINDOW_XWINDOW(from->window);
1086         event.data.l[1] = gdk_x11_atom_to_xatom(prop);
1087         event.data_format = 32;
1088         event.message_type = xsoap;
1089
1090         gdk_event_send_client_message((GdkEvent *) &event,
1091                                       GDK_WINDOW_XWINDOW(dest));
1092
1093         g_timeout_add(10000, too_slow, NULL);
1094
1095         gtk_main();
1096 }
1097
1098 /* Lookup this method in rpc_calls and invoke it.
1099  * Returns the SOAP reply or fault, or NULL if this method
1100  * doesn't return anything.
1101  */
1102 static xmlNodePtr soap_invoke(xmlNode *method)
1103 {
1104         GList *args = NULL;
1105         SOAP_call *call;
1106         gchar **arg;
1107         xmlNodePtr retval = NULL;
1108         GHashTable *name_to_node;
1109         xmlNode *node;
1110
1111         call = g_hash_table_lookup(rpc_calls, method->name);
1112         if (!call)
1113         {
1114                 xmlNodePtr reply;
1115                 gchar *err;
1116
1117                 err = g_strdup_printf(_("Attempt to invoke unknown SOAP "
1118                                         "method '%s'"), method->name);
1119                 reply = xmlNewNode(NULL, "env:Fault");
1120                 xmlNewNs(reply, SOAP_RPC_NS, "rpc");
1121                 xmlNewNs(reply, SOAP_ENV_NS, "env");
1122                 xmlNewTextChild(reply, NULL, "faultcode",
1123                                                 "rpc:ProcedureNotPresent");
1124                 xmlNewTextChild(reply, NULL, "faultstring", err);
1125                 g_free(err);
1126                 return reply;
1127         }
1128
1129         name_to_node = g_hash_table_new(g_str_hash, g_str_equal);
1130         for (node = method->xmlChildrenNode; node; node = node->next)
1131         {
1132                 if (node->type != XML_ELEMENT_NODE)
1133                         continue;
1134
1135                 if (node->ns == NULL || strcmp(node->ns->href, ROX_NS) != 0)
1136                         continue;
1137
1138                 g_hash_table_insert(name_to_node, (gchar *) node->name, node);
1139         }
1140
1141         if (call->required_args)
1142         {
1143                 for (arg = call->required_args; *arg; arg++)
1144                 {
1145                         node = g_hash_table_lookup(name_to_node, *arg);
1146                         if (!node)
1147                         {
1148                                 g_warning("Missing required argument '%s' "
1149                                         "in call to method '%s'", *arg,
1150                                         method->name);
1151                                 goto out;
1152                         }
1153
1154                         args = g_list_append(args, node);
1155                 }
1156         }
1157
1158         if (call->optional_args)
1159         {
1160                 for (arg = call->optional_args; *arg; arg++)
1161                         args = g_list_append(args,
1162                                 g_hash_table_lookup(name_to_node, *arg));
1163         }
1164
1165         retval = call->func(args);
1166
1167 out:
1168         g_hash_table_destroy(name_to_node);
1169         g_list_free(args);
1170
1171         return retval;
1172 }