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Sweden-Number/programs/winecfg/winecfg.c

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/*
* WineCfg configuration management
*
* Copyright 2002 Jaco Greeff
* Copyright 2003 Dimitrie O. Paun
* Copyright 2003-2004 Mike Hearn
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* TODO:
* - Use unicode
* - Icons in listviews/icons
* - Better add app dialog, scan c: for EXE files and add to list in background
* - Use [GNOME] HIG style groupboxes rather than win32 style (looks nicer, imho)
*
*/
#define WIN32_LEAN_AND_MEAN
#include <assert.h>
#include <stdio.h>
#include <limits.h>
#include <windows.h>
#include <winreg.h>
#include <wine/unicode.h>
#include <wine/debug.h>
#include <wine/list.h>
WINE_DEFAULT_DEBUG_CHANNEL(winecfg);
#include "winecfg.h"
#include "resource.h"
static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
HKEY config_key = NULL;
HMENU hPopupMenus = 0;
/* this is called from the WM_SHOWWINDOW handlers of each tab page.
*
* it's a nasty hack, necessary because the property sheet insists on resetting the window title
* to the title of the tab, which is utterly useless. dropping the property sheet is on the todo list.
*/
void set_window_title(HWND dialog)
{
WCHAR newtitle[256];
/* update the window title */
if (current_app)
{
WCHAR apptitle[256];
LoadStringW (GetModuleHandleW(NULL), IDS_WINECFG_TITLE_APP, apptitle,
sizeof(apptitle)/sizeof(apptitle[0]));
wsprintfW (newtitle, apptitle, current_app);
}
else
{
LoadStringW (GetModuleHandleW(NULL), IDS_WINECFG_TITLE, newtitle,
sizeof(newtitle)/sizeof(newtitle[0]));
}
WINE_TRACE("setting title to %s\n", wine_dbgstr_w (newtitle));
SendMessageW (GetParent(dialog), PSM_SETTITLEW, 0, (LPARAM) newtitle);
}
WCHAR* load_string (UINT id)
{
WCHAR buf[1024];
int len;
WCHAR* newStr;
LoadStringW (GetModuleHandleW(NULL), id, buf, sizeof(buf)/sizeof(buf[0]));
len = lstrlenW (buf);
newStr = HeapAlloc (GetProcessHeap(), 0, (len + 1) * sizeof (WCHAR));
memcpy (newStr, buf, len * sizeof (WCHAR));
newStr[len] = 0;
return newStr;
}
/**
* get_config_key: Retrieves a configuration value from the registry
*
* char *subkey : the name of the config section
* char *name : the name of the config value
* char *default : if the key isn't found, return this value instead
*
* Returns a buffer holding the value if successful, NULL if
* not. Caller is responsible for releasing the result.
*
*/
static WCHAR *get_config_key (HKEY root, const WCHAR *subkey, const WCHAR *name, const WCHAR *def)
{
LPWSTR buffer = NULL;
DWORD len;
HKEY hSubKey = NULL;
DWORD res;
WINE_TRACE("subkey=%s, name=%s, def=%s\n", wine_dbgstr_w(subkey),
wine_dbgstr_w(name), wine_dbgstr_w(def));
res = RegOpenKeyExW(root, subkey, 0, MAXIMUM_ALLOWED, &hSubKey);
if (res != ERROR_SUCCESS)
{
if (res == ERROR_FILE_NOT_FOUND)
{
WINE_TRACE("Section key not present - using default\n");
return def ? strdupW(def) : NULL;
}
else
{
WINE_ERR("RegOpenKey failed on wine config key (res=%d)\n", res);
}
goto end;
}
res = RegQueryValueExW(hSubKey, name, NULL, NULL, NULL, &len);
if (res == ERROR_FILE_NOT_FOUND)
{
WINE_TRACE("Value not present - using default\n");
buffer = def ? strdupW(def) : NULL;
goto end;
} else if (res != ERROR_SUCCESS)
{
WINE_ERR("Couldn't query value's length (res=%d)\n", res);
goto end;
}
buffer = HeapAlloc(GetProcessHeap(), 0, len + sizeof(WCHAR));
RegQueryValueExW(hSubKey, name, NULL, NULL, (LPBYTE) buffer, &len);
WINE_TRACE("buffer=%s\n", wine_dbgstr_w(buffer));
end:
RegCloseKey(hSubKey);
return buffer;
}
/**
* set_config_key: convenience wrapper to set a key/value pair
*
* const char *subKey : the name of the config section
* const char *valueName : the name of the config value
* const char *value : the value to set the configuration key to
*
* Returns 0 on success, non-zero otherwise
*
* If valueName or value is NULL, an empty section will be created
*/
static int set_config_key(HKEY root, const WCHAR *subkey, REGSAM access, const WCHAR *name, const void *value, DWORD type)
{
DWORD res = 1;
HKEY key = NULL;
WINE_TRACE("subkey=%s: name=%s, value=%p, type=%d\n", wine_dbgstr_w(subkey),
wine_dbgstr_w(name), value, type);
assert( subkey != NULL );
if (subkey[0])
{
res = RegCreateKeyExW( root, subkey, 0, NULL, REG_OPTION_NON_VOLATILE,
access, NULL, &key, NULL );
if (res != ERROR_SUCCESS) goto end;
}
else key = root;
if (name == NULL || value == NULL) goto end;
switch (type)
{
case REG_SZ: res = RegSetValueExW(key, name, 0, REG_SZ, value, (lstrlenW(value)+1)*sizeof(WCHAR)); break;
case REG_DWORD: res = RegSetValueExW(key, name, 0, REG_DWORD, value, sizeof(DWORD)); break;
}
if (res != ERROR_SUCCESS) goto end;
res = 0;
end:
if (key && key != root) RegCloseKey(key);
if (res != 0)
WINE_ERR("Unable to set configuration key %s in section %s, res=%d\n",
wine_dbgstr_w(name), wine_dbgstr_w(subkey), res);
return res;
}
/* ========================================================================= */
/* This code exists for the following reasons:
*
* - It makes working with the registry easier
* - By storing a mini cache of the registry, we can more easily implement
* cancel/revert and apply. The 'settings list' is an overlay on top of
* the actual registry data that we can write out at will.
*
* Rather than model a tree in memory, we simply store each absolute (rooted
* at the config key) path.
*
*/
struct setting
{
struct list entry;
HKEY root; /* the key on which path is rooted */
WCHAR *path; /* path in the registry rooted at root */
WCHAR *name; /* name of the registry value. if null, this means delete the key */
WCHAR *value; /* contents of the registry value. if null, this means delete the value */
DWORD type; /* type of registry value. REG_SZ or REG_DWORD for now */
};
static struct list settings = LIST_INIT(settings);
static void free_setting(struct setting *setting)
{
assert( setting != NULL );
assert( setting->path );
WINE_TRACE("destroying %p: %s\n", setting,
wine_dbgstr_w(setting->path));
HeapFree(GetProcessHeap(), 0, setting->path);
HeapFree(GetProcessHeap(), 0, setting->name);
HeapFree(GetProcessHeap(), 0, setting->value);
list_remove(&setting->entry);
HeapFree(GetProcessHeap(), 0, setting);
}
/**
* Returns the contents of the value at path. If not in the settings
* list, it will be fetched from the registry - failing that, the
* default will be used.
*
* If already in the list, the contents as given there will be
* returned. You are expected to HeapFree the result.
*/
WCHAR *get_reg_keyW(HKEY root, const WCHAR *path, const WCHAR *name, const WCHAR *def)
{
struct list *cursor;
struct setting *s;
WCHAR *val;
WINE_TRACE("path=%s, name=%s, def=%s\n", wine_dbgstr_w(path),
wine_dbgstr_w(name), wine_dbgstr_w(def));
/* check if it's in the list */
LIST_FOR_EACH( cursor, &settings )
{
s = LIST_ENTRY(cursor, struct setting, entry);
if (root != s->root) continue;
if (lstrcmpiW(path, s->path) != 0) continue;
if (!s->name) continue;
if (lstrcmpiW(name, s->name) != 0) continue;
WINE_TRACE("found %s:%s in settings list, returning %s\n",
wine_dbgstr_w(path), wine_dbgstr_w(name),
wine_dbgstr_w(s->value));
return s->value ? strdupW(s->value) : NULL;
}
/* no, so get from the registry */
val = get_config_key(root, path, name, def);
WINE_TRACE("returning %s\n", wine_dbgstr_w(val));
return val;
}
char *get_reg_key(HKEY root, const char *path, const char *name, const char *def)
{
WCHAR *wpath, *wname, *wdef = NULL, *wRet = NULL;
char *szRet = NULL;
int len;
WINE_TRACE("path=%s, name=%s, def=%s\n", path, name, def);
wpath = HeapAlloc(GetProcessHeap(), 0, (strlen(path)+1)*sizeof(WCHAR));
wname = HeapAlloc(GetProcessHeap(), 0, (strlen(name)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, path, -1, wpath, strlen(path)+1);
MultiByteToWideChar(CP_ACP, 0, name, -1, wname, strlen(name)+1);
if (def)
{
wdef = HeapAlloc(GetProcessHeap(), 0, (strlen(def)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, def, -1, wdef, strlen(def)+1);
}
wRet = get_reg_keyW(root, wpath, wname, wdef);
len = WideCharToMultiByte(CP_ACP, 0, wRet, -1, NULL, 0, NULL, NULL);
if (len)
{
szRet = HeapAlloc(GetProcessHeap(), 0, len);
WideCharToMultiByte(CP_ACP, 0, wRet, -1, szRet, len, NULL, NULL);
}
HeapFree(GetProcessHeap(), 0, wpath);
HeapFree(GetProcessHeap(), 0, wname);
HeapFree(GetProcessHeap(), 0, wdef);
HeapFree(GetProcessHeap(), 0, wRet);
return szRet;
}
/**
* Used to set a registry key.
*
* path is rooted at the config key, ie use "Version" or
* "AppDefaults\\fooapp.exe\\Version". You can use keypath()
* to get such a string.
*
* name is the value name, or NULL to delete the path.
*
* value is what to set the value to, or NULL to delete it.
*
* type is REG_SZ or REG_DWORD.
*
* These values will be copied when necessary.
*/
static void set_reg_key_ex(HKEY root, const WCHAR *path, const WCHAR *name, const void *value, DWORD type)
{
struct list *cursor;
struct setting *s;
assert( path != NULL );
WINE_TRACE("path=%s, name=%s, value=%s\n", wine_dbgstr_w(path),
wine_dbgstr_w(name), wine_dbgstr_w(value));
/* firstly, see if we already set this setting */
LIST_FOR_EACH( cursor, &settings )
{
struct setting *s = LIST_ENTRY(cursor, struct setting, entry);
if (root != s->root) continue;
if (lstrcmpiW(s->path, path) != 0) continue;
if ((s->name && name) && lstrcmpiW(s->name, name) != 0) continue;
/* are we attempting a double delete? */
if (!s->name && !name) return;
/* do we want to undelete this key? */
if (!s->name && name) s->name = strdupW(name);
/* yes, we have already set it, so just replace the content and return */
HeapFree(GetProcessHeap(), 0, s->value);
s->type = type;
switch (type)
{
case REG_SZ:
s->value = value ? strdupW(value) : NULL;
break;
case REG_DWORD:
s->value = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD));
memcpy( s->value, value, sizeof(DWORD) );
break;
}
/* are we deleting this key? this won't remove any of the
* children from the overlay so if the user adds it again in
* that session it will appear to undelete the settings, but
* in reality only the settings actually modified by the user
* in that session will be restored. we might want to fix this
* corner case in future by actually deleting all the children
* here so that once it's gone, it's gone.
*/
if (!name) s->name = NULL;
return;
}
/* otherwise add a new setting for it */
s = HeapAlloc(GetProcessHeap(), 0, sizeof(struct setting));
s->root = root;
s->path = strdupW(path);
s->name = name ? strdupW(name) : NULL;
s->type = type;
switch (type)
{
case REG_SZ:
s->value = value ? strdupW(value) : NULL;
break;
case REG_DWORD:
s->value = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD));
memcpy( s->value, value, sizeof(DWORD) );
break;
}
list_add_tail(&settings, &s->entry);
}
void set_reg_key(HKEY root, const char *path, const char *name, const char *value)
{
WCHAR *wpath, *wname = NULL, *wvalue = NULL;
wpath = HeapAlloc(GetProcessHeap(), 0, (strlen(path)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, path, -1, wpath, strlen(path)+1);
if (name)
{
wname = HeapAlloc(GetProcessHeap(), 0, (strlen(name)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, name, -1, wname, strlen(name)+1);
}
if (value)
{
wvalue = HeapAlloc(GetProcessHeap(), 0, (strlen(value)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, value, -1, wvalue, strlen(value)+1);
}
set_reg_key_ex(root, wpath, wname, wvalue, REG_SZ);
HeapFree(GetProcessHeap(), 0, wpath);
HeapFree(GetProcessHeap(), 0, wname);
HeapFree(GetProcessHeap(), 0, wvalue);
}
void set_reg_key_dword(HKEY root, const char *path, const char *name, DWORD value)
{
WCHAR *wpath, *wname;
wpath = HeapAlloc(GetProcessHeap(), 0, (strlen(path)+1)*sizeof(WCHAR));
wname = HeapAlloc(GetProcessHeap(), 0, (strlen(name)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, path, -1, wpath, strlen(path)+1);
MultiByteToWideChar(CP_ACP, 0, name, -1, wname, strlen(name)+1);
set_reg_key_ex(root, wpath, wname, &value, REG_DWORD);
HeapFree(GetProcessHeap(), 0, wpath);
HeapFree(GetProcessHeap(), 0, wname);
}
void set_reg_keyW(HKEY root, const WCHAR *path, const WCHAR *name, const WCHAR *value)
{
set_reg_key_ex(root, path, name, value, REG_SZ);
}
void set_reg_key_dwordW(HKEY root, const WCHAR *path, const WCHAR *name, DWORD value)
{
set_reg_key_ex(root, path, name, &value, REG_DWORD);
}
/**
* enumerates the value names at the given path, taking into account
* the changes in the settings list.
*
* you are expected to HeapFree each element of the array, which is null
* terminated, as well as the array itself.
*/
static WCHAR **enumerate_valuesW(HKEY root, WCHAR *path)
{
HKEY key;
DWORD res, i = 0, valueslen = 0;
WCHAR **values = NULL;
struct list *cursor;
res = RegOpenKeyExW(root, path, 0, MAXIMUM_ALLOWED, &key);
if (res == ERROR_SUCCESS)
{
while (TRUE)
{
WCHAR name[1024];
DWORD namesize = sizeof(name)/sizeof(name[0]);
BOOL removed = FALSE;
/* find out the needed size, allocate a buffer, read the value */
if ((res = RegEnumValueW(key, i, name, &namesize, NULL, NULL, NULL, NULL)) != ERROR_SUCCESS)
break;
WINE_TRACE("name=%s\n", wine_dbgstr_w(name));
/* check if this value name has been removed in the settings list */
LIST_FOR_EACH( cursor, &settings )
{
struct setting *s = LIST_ENTRY(cursor, struct setting, entry);
if (lstrcmpiW(s->path, path) != 0) continue;
if (lstrcmpiW(s->name, name) != 0) continue;
if (!s->value)
{
WINE_TRACE("this key has been removed, so skipping\n");
removed = TRUE;
break;
}
}
if (removed) /* this value was deleted by the user, so don't include it */
{
i++;
continue;
}
/* grow the array if necessary, add buffer to it, iterate */
if (values) values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(WCHAR*) * (valueslen + 1));
else values = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR*));
values[valueslen++] = strdupW(name);
WINE_TRACE("valueslen is now %d\n", valueslen);
i++;
}
}
else
{
WINE_WARN("failed opening registry key %s, res=0x%x\n",
wine_dbgstr_w(path), res);
}
WINE_TRACE("adding settings in list but not registry\n");
/* now we have to add the values that aren't in the registry but are in the settings list */
LIST_FOR_EACH( cursor, &settings )
{
struct setting *setting = LIST_ENTRY(cursor, struct setting, entry);
BOOL found = FALSE;
if (lstrcmpiW(setting->path, path) != 0) continue;
if (!setting->value) continue;
for (i = 0; i < valueslen; i++)
{
if (lstrcmpiW(setting->name, values[i]) == 0)
{
found = TRUE;
break;
}
}
if (found) continue;
WINE_TRACE("%s in list but not registry\n", wine_dbgstr_w(setting->name));
/* otherwise it's been set by the user but isn't in the registry */
if (values) values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(WCHAR*) * (valueslen + 1));
else values = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR*));
values[valueslen++] = strdupW(setting->name);
}
WINE_TRACE("adding null terminator\n");
if (values)
{
values = HeapReAlloc(GetProcessHeap(), 0, values, sizeof(WCHAR*) * (valueslen + 1));
values[valueslen] = NULL;
}
RegCloseKey(key);
return values;
}
char **enumerate_values(HKEY root, char *path)
{
WCHAR *wpath;
WCHAR **wret;
char **ret=NULL;
int i=0, len=0, size;
wpath = HeapAlloc(GetProcessHeap(), 0, (strlen(path)+1)*sizeof(WCHAR));
MultiByteToWideChar(CP_ACP, 0, path, -1, wpath, strlen(path)+1);
wret = enumerate_valuesW(root, wpath);
if (wret)
{
for(len=0; wret[len]; len++);
ret = HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(char*));
/* convert WCHAR ** to char ** and HeapFree each WCHAR * element on our way */
for (i=0; i<len; i++)
{
size = WideCharToMultiByte(CP_ACP, 0, wret[i], -1, NULL, 0, NULL, NULL);
if(size)
{
ret[i] = HeapAlloc(GetProcessHeap(), 0, size);
WideCharToMultiByte(CP_ACP, 0, wret[i], -1, ret[i], size, NULL, NULL);
HeapFree(GetProcessHeap(), 0, wret[i]);
}
}
ret[len] = NULL;
}
HeapFree(GetProcessHeap(), 0, wpath);
HeapFree(GetProcessHeap(), 0, wret);
return ret;
}
/**
* returns true if the given key/value pair exists in the registry or
* has been written to.
*/
BOOL reg_key_exists(HKEY root, const char *path, const char *name)
{
char *val = get_reg_key(root, path, name, NULL);
if (val)
{
HeapFree(GetProcessHeap(), 0, val);
return TRUE;
}
return FALSE;
}
static void process_setting(struct setting *s)
{
static const WCHAR softwareW[] = {'S','o','f','t','w','a','r','e','\\'};
HKEY key;
BOOL needs_wow64 = (is_win64 && s->root == HKEY_LOCAL_MACHINE && s->path &&
!strncmpiW( s->path, softwareW, sizeof(softwareW)/sizeof(WCHAR) ));
if (s->value)
{
WINE_TRACE("Setting %s:%s to '%s'\n", wine_dbgstr_w(s->path),
wine_dbgstr_w(s->name), wine_dbgstr_w(s->value));
set_config_key(s->root, s->path, MAXIMUM_ALLOWED, s->name, s->value, s->type);
if (needs_wow64)
{
WINE_TRACE("Setting 32-bit %s:%s to '%s'\n", wine_dbgstr_w(s->path),
wine_dbgstr_w(s->name), wine_dbgstr_w(s->value));
set_config_key(s->root, s->path, MAXIMUM_ALLOWED | KEY_WOW64_32KEY, s->name, s->value, s->type);
}
}
else
{
WINE_TRACE("Removing %s:%s\n", wine_dbgstr_w(s->path), wine_dbgstr_w(s->name));
if (!RegOpenKeyExW( s->root, s->path, 0, MAXIMUM_ALLOWED, &key ))
{
/* NULL name means remove that path/section entirely */
if (s->name) RegDeleteValueW( key, s->name );
else
{
RegDeleteTreeW( key, NULL );
RegDeleteKeyW( s->root, s->path );
}
RegCloseKey( key );
}
if (needs_wow64)
{
WINE_TRACE("Removing 32-bit %s:%s\n", wine_dbgstr_w(s->path), wine_dbgstr_w(s->name));
if (!RegOpenKeyExW( s->root, s->path, 0, MAXIMUM_ALLOWED | KEY_WOW64_32KEY, &key ))
{
if (s->name) RegDeleteValueW( key, s->name );
else
{
RegDeleteTreeW( key, NULL );
RegDeleteKeyExW( s->root, s->path, KEY_WOW64_32KEY, 0 );
}
RegCloseKey( key );
}
}
}
}
void apply(void)
{
if (list_empty(&settings)) return; /* we will be called for each page when the user clicks OK */
WINE_TRACE("()\n");
while (!list_empty(&settings))
{
struct setting *s = (struct setting *) list_head(&settings);
process_setting(s);
free_setting(s);
}
}
/* ================================== utility functions ============================ */
WCHAR* current_app = NULL; /* the app we are currently editing, or NULL if editing global */
/* returns a registry key path suitable for passing to addTransaction */
char *keypath(const char *section)
{
static char *result = NULL;
HeapFree(GetProcessHeap(), 0, result);
if (current_app)
{
result = HeapAlloc(GetProcessHeap(), 0, strlen("AppDefaults\\") + lstrlenW(current_app)*2 + 2 /* \\ */ + strlen(section) + 1 /* terminator */);
wsprintfA(result, "AppDefaults\\%ls", current_app);
if (section[0]) sprintf( result + strlen(result), "\\%s", section );
}
else
{
result = strdupA(section);
}
return result;
}
WCHAR *keypathW(const WCHAR *section)
{
static const WCHAR appdefaultsW[] = {'A','p','p','D','e','f','a','u','l','t','s','\\',0};
static WCHAR *result = NULL;
HeapFree(GetProcessHeap(), 0, result);
if (current_app)
{
DWORD len = sizeof(appdefaultsW) + (lstrlenW(current_app) + lstrlenW(section) + 1) * sizeof(WCHAR);
result = HeapAlloc(GetProcessHeap(), 0, len );
lstrcpyW( result, appdefaultsW );
lstrcatW( result, current_app );
if (section[0])
{
len = lstrlenW(result);
result[len++] = '\\';
lstrcpyW( result + len, section );
}
}
else
{
result = strdupW(section);
}
return result;
}
void PRINTERROR(void)
{
LPSTR msg;
FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
0, GetLastError(), MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),
(LPSTR)&msg, 0, NULL);
/* eliminate trailing newline, is this a Wine bug? */
*(strrchr(msg, '\r')) = '\0';
WINE_TRACE("error: '%s'\n", msg);
}
BOOL initialize(HINSTANCE hInstance)
{
DWORD res = RegCreateKeyA(HKEY_CURRENT_USER, WINE_KEY_ROOT, &config_key);
if (res != ERROR_SUCCESS) {
WINE_ERR("RegOpenKey failed on wine config key (%d)\n", res);
return TRUE;
}
return FALSE;
}
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