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1 /* GIO - GLib Input, Output and Streaming Library
2  *
3  * Copyright (C) 2006-2007 Red Hat, Inc.
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General
16  * Public License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18  * Boston, MA 02111-1307, USA.
19  *
20  * Author: Alexander Larsson <alexl@redhat.com>
21  */
22 
23 #include "config.h"
24 
25 #include <string.h>
26 
27 #include "gcontenttypeprivate.h"
28 #include "gwin32appinfo.h"
29 #include "gappinfo.h"
30 #include "gioerror.h"
31 #include "gfile.h"
32 #include <glib/gstdio.h>
33 #include "glibintl.h"
34 
35 #include <windows.h>
36 #include <shlwapi.h>
37 
38 #include "gioalias.h"
39 
40 #ifndef ASSOCF_INIT_BYEXENAME
41 #define ASSOCF_INIT_BYEXENAME 0x00000002
42 #endif
43 
44 /* These were wrong in MingW */
45 #define REAL_ASSOCSTR_COMMAND 1
46 #define REAL_ASSOCSTR_EXECUTABLE 2
47 #define REAL_ASSOCSTR_FRIENDLYDOCNAME 3
48 #define REAL_ASSOCSTR_FRIENDLYAPPNAME 4
49 
50 #ifndef AssocQueryString
51 #pragma message("AssocQueryString not available with SDK used")
52 #endif
53 
54 static void g_win32_app_info_iface_init (GAppInfoIface *iface);
55 
56 struct _GWin32AppInfo
57 {
58   GObject parent_instance;
59   wchar_t *id;
60   char *id_utf8;
61   gboolean id_is_exename;
62   char *executable;
63   char *name;
64   gboolean no_open_with;
65 };
66 
G_DEFINE_TYPE_WITH_CODE(GWin32AppInfo,g_win32_app_info,G_TYPE_OBJECT,G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO,g_win32_app_info_iface_init))67 G_DEFINE_TYPE_WITH_CODE (GWin32AppInfo, g_win32_app_info, G_TYPE_OBJECT,
68 			 G_IMPLEMENT_INTERFACE (G_TYPE_APP_INFO,
69 						g_win32_app_info_iface_init))
70 
71 
72 static void
73 g_win32_app_info_finalize (GObject *object)
74 {
75   GWin32AppInfo *info;
76 
77   info = G_WIN32_APP_INFO (object);
78 
79   g_free (info->id);
80   g_free (info->id_utf8);
81   g_free (info->name);
82   g_free (info->executable);
83 
84   G_OBJECT_CLASS (g_win32_app_info_parent_class)->finalize (object);
85 }
86 
87 static void
g_win32_app_info_class_init(GWin32AppInfoClass * klass)88 g_win32_app_info_class_init (GWin32AppInfoClass *klass)
89 {
90   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
91 
92   gobject_class->finalize = g_win32_app_info_finalize;
93 }
94 
95 static void
g_win32_app_info_init(GWin32AppInfo * local)96 g_win32_app_info_init (GWin32AppInfo *local)
97 {
98 }
99 
100 static GAppInfo *
g_desktop_app_info_new_from_id(wchar_t * id,gboolean id_is_exename)101 g_desktop_app_info_new_from_id (wchar_t *id /* takes ownership */,
102 				gboolean id_is_exename)
103 {
104 #ifdef AssocQueryString
105   ASSOCF flags;
106 #endif
107   wchar_t buffer[1024];
108   DWORD buffer_size;
109   GWin32AppInfo *info;
110   HKEY app_key;
111 
112   info = g_object_new (G_TYPE_WIN32_APP_INFO, NULL);
113   info->id = id; /* Takes ownership */
114   info->id_utf8 = g_utf16_to_utf8 (id, -1, NULL, NULL, NULL);
115   info->id_is_exename = id_is_exename;
116 
117 #ifdef AssocQueryString
118   flags = 0;
119   if (id_is_exename)
120     flags |= ASSOCF_INIT_BYEXENAME;
121 
122   buffer_size = 1024;
123   if (AssocQueryStringW(flags,
124 			REAL_ASSOCSTR_EXECUTABLE,
125 			id,
126 			NULL,
127 			buffer,
128 			&buffer_size) == S_OK)
129     info->executable = g_utf16_to_utf8 (buffer, -1, NULL, NULL, NULL);
130 
131   buffer_size = 1024;
132   if (AssocQueryStringW(flags,
133 			REAL_ASSOCSTR_FRIENDLYAPPNAME,
134 			id,
135 			NULL,
136 			buffer,
137 			&buffer_size) == S_OK)
138     info->name = g_utf16_to_utf8 (buffer, -1, NULL, NULL, NULL);
139 #endif
140 
141   if (info->name == NULL)
142     {
143       /* TODO: Should look up name from executable resources */
144       if (info->executable)
145 	info->name = g_path_get_basename (info->executable);
146       else
147 	info->name = g_strdup (info->id_utf8);
148     }
149 
150 #ifdef AssocQueryString
151   if (AssocQueryKeyW(flags,
152 		     ASSOCKEY_APP,
153 		     info->id,
154 		     NULL,
155 		     &app_key) == S_OK)
156     {
157       if (RegQueryValueExW (app_key, L"NoOpenWith", 0,
158 			    NULL, NULL, NULL) == ERROR_SUCCESS)
159 	info->no_open_with = TRUE;
160       RegCloseKey (app_key);
161     }
162 #endif
163 
164   return G_APP_INFO (info);
165 }
166 
167 static wchar_t *
dup_wstring(wchar_t * str)168 dup_wstring (wchar_t *str)
169 {
170   gsize len;
171   for (len = 0; str[len] != 0; len++)
172     ;
173   return (wchar_t *)g_memdup (str, (len + 1) * 2);
174 }
175 
176 static GAppInfo *
g_win32_app_info_dup(GAppInfo * appinfo)177 g_win32_app_info_dup (GAppInfo *appinfo)
178 {
179   GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo);
180   GWin32AppInfo *new_info;
181 
182   new_info = g_object_new (G_TYPE_WIN32_APP_INFO, NULL);
183 
184   new_info->id = dup_wstring (info->id);
185   new_info->id_utf8 = g_strdup (info->id_utf8);
186   new_info->id_is_exename = info->id_is_exename;
187   new_info->name = g_strdup (info->name);
188   new_info->executable = g_strdup (info->executable);
189   new_info->no_open_with = info->no_open_with;
190 
191   return G_APP_INFO (new_info);
192 }
193 
194 static gboolean
g_win32_app_info_equal(GAppInfo * appinfo1,GAppInfo * appinfo2)195 g_win32_app_info_equal (GAppInfo *appinfo1,
196                         GAppInfo *appinfo2)
197 {
198   GWin32AppInfo *info1 = G_WIN32_APP_INFO (appinfo1);
199   GWin32AppInfo *info2 = G_WIN32_APP_INFO (appinfo2);
200 
201   if (info1->executable == NULL ||
202       info2->executable == NULL)
203     return FALSE;
204 
205   return strcmp (info1->executable, info2->executable) == 0;
206 }
207 
208 static const char *
g_win32_app_info_get_id(GAppInfo * appinfo)209 g_win32_app_info_get_id (GAppInfo *appinfo)
210 {
211   GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo);
212 
213   return info->id_utf8;
214 }
215 
216 static const char *
g_win32_app_info_get_name(GAppInfo * appinfo)217 g_win32_app_info_get_name (GAppInfo *appinfo)
218 {
219   GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo);
220 
221   if (info->name == NULL)
222     return _("Unnamed");
223 
224   return info->name;
225 }
226 
227 static const char *
g_win32_app_info_get_description(GAppInfo * appinfo)228 g_win32_app_info_get_description (GAppInfo *appinfo)
229 {
230   /* Win32 has no app descriptions */
231   return NULL;
232 }
233 
234 static const char *
g_win32_app_info_get_executable(GAppInfo * appinfo)235 g_win32_app_info_get_executable (GAppInfo *appinfo)
236 {
237   GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo);
238 
239   return info->executable;
240 }
241 
242 static GIcon *
g_win32_app_info_get_icon(GAppInfo * appinfo)243 g_win32_app_info_get_icon (GAppInfo *appinfo)
244 {
245   /* GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo); */
246 
247   /* TODO: How to handle icons */
248   return NULL;
249 }
250 
251 static gboolean
g_win32_app_info_launch(GAppInfo * appinfo,GList * files,GAppLaunchContext * launch_context,GError ** error)252 g_win32_app_info_launch (GAppInfo           *appinfo,
253 			 GList              *files,
254 			 GAppLaunchContext  *launch_context,
255 			 GError            **error)
256 {
257   GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo);
258 #ifdef AssocQueryString
259   ASSOCF flags;
260 #endif
261   HKEY class_key;
262   SHELLEXECUTEINFOW exec_info = {0};
263   GList *l;
264 
265   /* TODO:  What might startup_id mean on win32? */
266 #ifdef AssocQueryString
267   flags = 0;
268   if (info->id_is_exename)
269     flags |= ASSOCF_INIT_BYEXENAME;
270 
271   if (AssocQueryKeyW (flags,
272 		      ASSOCKEY_SHELLEXECCLASS,
273 		      info->id,
274 		      NULL,
275 		      &class_key) != S_OK)
276     {
277       g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Can't find application"));
278       return FALSE;
279     }
280 #endif
281 
282   for (l = files; l != NULL; l = l->next)
283     {
284       char *path = g_file_get_path (l->data);
285       wchar_t *wfilename = g_utf8_to_utf16 (path, -1, NULL, NULL, NULL);
286 
287       g_free (path);
288 
289       memset (&exec_info, 0, sizeof (exec_info));
290       exec_info.cbSize = sizeof (exec_info);
291       exec_info.fMask = SEE_MASK_FLAG_DDEWAIT | SEE_MASK_CLASSKEY;
292       exec_info.lpFile = wfilename;
293       exec_info.nShow = SW_SHOWNORMAL;
294       exec_info.hkeyClass = class_key;
295 
296       if (!ShellExecuteExW (&exec_info))
297 	{
298 	  char *message_utf8 = g_win32_error_message (GetLastError ());
299 
300 	  g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Error launching application: %s"), message_utf8);
301 	  g_free (message_utf8);
302 
303 	  g_free (wfilename);
304 	  RegCloseKey (class_key);
305 	  return FALSE;
306 	}
307 
308       g_free (wfilename);
309     }
310 
311   RegCloseKey (class_key);
312 
313   return TRUE;
314 }
315 
316 static gboolean
g_win32_app_info_supports_uris(GAppInfo * appinfo)317 g_win32_app_info_supports_uris (GAppInfo *appinfo)
318 {
319   return FALSE;
320 }
321 
322 static gboolean
g_win32_app_info_supports_files(GAppInfo * appinfo)323 g_win32_app_info_supports_files (GAppInfo *appinfo)
324 {
325   return TRUE;
326 }
327 
328 static gboolean
g_win32_app_info_launch_uris(GAppInfo * appinfo,GList * uris,GAppLaunchContext * launch_context,GError ** error)329 g_win32_app_info_launch_uris (GAppInfo           *appinfo,
330 			      GList              *uris,
331 			      GAppLaunchContext  *launch_context,
332 			      GError            **error)
333 {
334   g_set_error_literal (error, G_IO_ERROR,
335                        G_IO_ERROR_NOT_SUPPORTED,
336                        _("URIs not supported"));
337   return FALSE;
338 }
339 
340 static gboolean
g_win32_app_info_should_show(GAppInfo * appinfo)341 g_win32_app_info_should_show (GAppInfo *appinfo)
342 {
343   GWin32AppInfo *info = G_WIN32_APP_INFO (appinfo);
344 
345   if (info->no_open_with)
346     return FALSE;
347 
348   return TRUE;
349 }
350 
351 static gboolean
g_win32_app_info_set_as_default_for_type(GAppInfo * appinfo,const char * content_type,GError ** error)352 g_win32_app_info_set_as_default_for_type (GAppInfo    *appinfo,
353                                           const char  *content_type,
354                                           GError     **error)
355 {
356   g_set_error_literal (error, G_IO_ERROR,
357                        G_IO_ERROR_NOT_SUPPORTED,
358                        _("association changes not supported on win32"));
359   return FALSE;
360 }
361 
362 GAppInfo *
g_app_info_create_from_commandline(const char * commandline,const char * application_name,GAppInfoCreateFlags flags,GError ** error)363 g_app_info_create_from_commandline (const char           *commandline,
364 				    const char           *application_name,
365 				    GAppInfoCreateFlags   flags,
366 				    GError              **error)
367 {
368   g_set_error_literal (error, G_IO_ERROR,
369                        G_IO_ERROR_NOT_SUPPORTED,
370                        _("Association creation not supported on win32"));
371   return NULL;
372 }
373 
374 
375 static void
g_win32_app_info_iface_init(GAppInfoIface * iface)376 g_win32_app_info_iface_init (GAppInfoIface *iface)
377 {
378   iface->dup = g_win32_app_info_dup;
379   iface->equal = g_win32_app_info_equal;
380   iface->get_id = g_win32_app_info_get_id;
381   iface->get_name = g_win32_app_info_get_name;
382   iface->get_description = g_win32_app_info_get_description;
383   iface->get_executable = g_win32_app_info_get_executable;
384   iface->get_icon = g_win32_app_info_get_icon;
385   iface->launch = g_win32_app_info_launch;
386   iface->supports_uris = g_win32_app_info_supports_uris;
387   iface->supports_files = g_win32_app_info_supports_files;
388   iface->launch_uris = g_win32_app_info_launch_uris;
389   iface->should_show = g_win32_app_info_should_show;
390   iface->set_as_default_for_type = g_win32_app_info_set_as_default_for_type;
391 }
392 
393 static void
enumerate_open_with_list(HKEY dir_key,GList ** prognames)394 enumerate_open_with_list (HKEY    dir_key,
395 			  GList **prognames)
396 {
397   DWORD index;
398   wchar_t name[256];
399   DWORD name_len, nbytes;
400   wchar_t data[256];
401   wchar_t *data_alloc;
402   DWORD type;
403 
404   /* Must also look inside for a,b,c, + MRUList */
405   index = 0;
406   name_len = 256;
407   nbytes = sizeof (data) - 2;
408   while (RegEnumValueW (dir_key,
409 		        index,
410 		        name,
411 		        &name_len,
412 		        0,
413 		        &type,
414 		        (LPBYTE)data,
415 		        &nbytes) == ERROR_SUCCESS)
416     {
417       data[nbytes/2] = '\0';
418       if (type == REG_SZ &&
419 	  /* Ignore things like MRUList, just look at 'a', 'b', 'c', etc */
420 	  name_len == 1)
421 	{
422 	  data_alloc = (wchar_t *)g_memdup (data, nbytes + 2);
423 	  data_alloc[nbytes/2] = 0;
424 	  *prognames = g_list_prepend (*prognames, data_alloc);
425 	}
426       index++;
427       name_len = 256;
428       nbytes = sizeof (data) - 2;
429     }
430 
431   index = 0;
432   name_len = 256;
433   while (RegEnumKeyExW (dir_key,
434 		        index,
435 		        name,
436 		        &name_len,
437 		        NULL,
438 		        NULL,
439 		        NULL,
440 		        NULL) == ERROR_SUCCESS)
441     {
442       *prognames = g_list_prepend (*prognames, g_memdup (name, (name_len + 1) * 2));
443       index++;
444       name_len = 256;
445     }
446 }
447 
448 static void
enumerate_open_with_progids(HKEY dir_key,GList ** progids)449 enumerate_open_with_progids (HKEY dir_key,
450 			     GList **progids)
451 {
452   DWORD index;
453   wchar_t name[256];
454   DWORD name_len, type;
455 
456   index = 0;
457   name_len = 256;
458   while (RegEnumValueW (dir_key,
459 		        index,
460 		        name,
461 		        &name_len,
462 		        0,
463 		        &type,
464 		        NULL,
465 		        0) == ERROR_SUCCESS)
466     {
467       *progids = g_list_prepend (*progids, g_memdup (name, (name_len + 1) * 2));
468       index++;
469       name_len = 256;
470     }
471 }
472 
473 static void
enumerate_open_with_root(HKEY dir_key,GList ** progids,GList ** prognames)474 enumerate_open_with_root (HKEY    dir_key,
475 			  GList **progids,
476 			  GList **prognames)
477 {
478   HKEY reg_key = NULL;
479 
480   if (RegOpenKeyExW (dir_key, L"OpenWithList", 0,
481 		     KEY_READ, &reg_key) == ERROR_SUCCESS)
482     {
483       enumerate_open_with_list (reg_key, prognames);
484       RegCloseKey (reg_key);
485     }
486 
487   if (RegOpenKeyExW (dir_key, L"OpenWithProgids", 0,
488 		     KEY_QUERY_VALUE, &reg_key) == ERROR_SUCCESS)
489     {
490       enumerate_open_with_progids (reg_key, progids);
491       RegCloseKey (reg_key);
492     }
493 }
494 
495 static gboolean
app_info_in_list(GAppInfo * info,GList * list)496 app_info_in_list (GAppInfo *info,
497                   GList    *list)
498 {
499   while (list != NULL)
500     {
501       if (g_app_info_equal (info, list->data))
502 	return TRUE;
503       list = list->next;
504     }
505   return FALSE;
506 }
507 
508 GList *
g_app_info_get_all_for_type(const char * content_type)509 g_app_info_get_all_for_type (const char *content_type)
510 {
511   GList *progids = NULL;
512   GList *prognames = NULL;
513   HKEY reg_key, sys_file_assoc_key, reg_key2;
514   wchar_t percieved_type[128];
515   DWORD nchars, key_type;
516   wchar_t *wc_key;
517   GList *l;
518   GList *infos;
519 
520   wc_key = g_utf8_to_utf16 (content_type, -1, NULL, NULL, NULL);
521   if (RegOpenKeyExW (HKEY_CLASSES_ROOT, wc_key, 0,
522 		     KEY_QUERY_VALUE, &reg_key) == ERROR_SUCCESS)
523     {
524       enumerate_open_with_root (reg_key, &progids, &prognames);
525 
526       nchars = sizeof (percieved_type) / sizeof(wchar_t);
527       if (RegQueryValueExW (reg_key, L"PerceivedType", 0,
528 			    &key_type, (LPBYTE) percieved_type, &nchars) == ERROR_SUCCESS)
529 	{
530 	  if (key_type == REG_SZ &&
531 	      RegOpenKeyExW (HKEY_CLASSES_ROOT, L"SystemFileAssociations", 0,
532 			     KEY_QUERY_VALUE, &sys_file_assoc_key) == ERROR_SUCCESS)
533 	    {
534 	      if (RegOpenKeyExW (sys_file_assoc_key, percieved_type, 0,
535 				 KEY_QUERY_VALUE, &reg_key2) == ERROR_SUCCESS)
536 		{
537 		  enumerate_open_with_root (reg_key2, &progids, &prognames);
538 		  RegCloseKey (reg_key2);
539 		}
540 
541 	      RegCloseKey (sys_file_assoc_key);
542 	    }
543 	}
544       RegCloseKey (reg_key);
545     }
546 
547   if (RegOpenKeyExW (HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\FileExts", 0,
548 		     KEY_QUERY_VALUE, &reg_key) == ERROR_SUCCESS)
549     {
550       if (RegOpenKeyExW (reg_key, wc_key, 0,
551 			 KEY_QUERY_VALUE, &reg_key2) == ERROR_SUCCESS)
552 	{
553 	  enumerate_open_with_root (reg_key2, &progids, &prognames);
554 	  RegCloseKey (reg_key2);
555 	}
556 
557       RegCloseKey (reg_key);
558     }
559 
560   infos = NULL;
561   for (l = prognames; l != NULL; l = l->next)
562     {
563       GAppInfo *info;
564 
565       /* l->data ownership is taken */
566       info = g_desktop_app_info_new_from_id ((wchar_t *)l->data, TRUE);
567       if (app_info_in_list (info, infos))
568 	g_object_unref (info);
569       else
570 	infos = g_list_prepend (infos, info);
571     }
572   g_list_free (prognames);
573 
574   for (l = progids; l != NULL; l = l->next)
575     {
576       GAppInfo *info;
577 
578       /* l->data ownership is taken */
579       info = g_desktop_app_info_new_from_id ((wchar_t *)l->data, FALSE);
580       if (app_info_in_list (info, infos))
581 	g_object_unref (info);
582       else
583 	infos = g_list_prepend (infos, info);
584     }
585   g_list_free (progids);
586 
587   g_free (wc_key);
588   return g_list_reverse (infos);
589 }
590 
591 GAppInfo *
g_app_info_get_default_for_type(const char * content_type,gboolean must_support_uris)592 g_app_info_get_default_for_type (const char *content_type,
593 				 gboolean    must_support_uris)
594 {
595   wchar_t *wtype;
596   wchar_t buffer[1024];
597   DWORD buffer_size;
598 
599   wtype = g_utf8_to_utf16 (content_type, -1, NULL, NULL, NULL);
600 
601   /* Verify that we have some sort of app registered for this type */
602 #ifdef AssocQueryString
603   buffer_size = 1024;
604   if (AssocQueryStringW (0,
605 		  	 REAL_ASSOCSTR_COMMAND,
606 			 wtype,
607 			 NULL,
608 			 buffer,
609 			 &buffer_size) == S_OK)
610     /* Takes ownership of wtype */
611     return g_desktop_app_info_new_from_id (wtype, FALSE);
612 #endif
613 
614   g_free (wtype);
615   return NULL;
616 }
617 
618 GAppInfo *
g_app_info_get_default_for_uri_scheme(const char * uri_scheme)619 g_app_info_get_default_for_uri_scheme (const char *uri_scheme)
620 {
621   /* TODO: Implement */
622   return NULL;
623 }
624 
625 GList *
g_app_info_get_all(void)626 g_app_info_get_all (void)
627 {
628   DWORD index;
629   wchar_t name[256];
630   DWORD name_len;
631   HKEY reg_key;
632   GList *infos;
633   GAppInfo *info;
634 
635   if (RegOpenKeyExW (HKEY_CLASSES_ROOT, L"Applications", 0,
636 		     KEY_READ, &reg_key) != ERROR_SUCCESS)
637     return NULL;
638 
639   infos = NULL;
640   index = 0;
641   name_len = 256;
642   while (RegEnumKeyExW (reg_key,
643 		        index,
644 		        name,
645 		        &name_len,
646 		        NULL,
647 		        NULL,
648 		        NULL,
649 		        NULL) == ERROR_SUCCESS)
650     {
651       wchar_t *name_dup = g_memdup (name, (name_len+1)*2);
652       /* name_dup ownership is taken */
653       info = g_desktop_app_info_new_from_id (name_dup, TRUE);
654       infos = g_list_prepend (infos, info);
655 
656       index++;
657       name_len = 256;
658     }
659 
660   RegCloseKey (reg_key);
661 
662   return g_list_reverse (infos);
663 }
664 
665 void
g_app_info_reset_type_associations(const char * content_type)666 g_app_info_reset_type_associations (const char *content_type)
667 {
668   /* nothing to do */
669 }
670