system/wine
system/wine
1
0
Fork 0
mirror of git://source.winehq.org/git/wine.git synced 2024-11-01 21:04:06 +00:00
Code Issues Projects Releases Packages Wiki Activity
wine/dlls/shell32/dde.c
Michael Stefaniuc 9a270d7e2a shell32: Remove redundant NULL checks before heap_free(). 
Signed-off-by: Michael Stefaniuc <mstefani@winehq.org>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2018-04-02 16:02:54 +02:00

525 lines
16 KiB
C
Raw Blame History

/*
* Shell DDE Handling
*
* Copyright 2004 Robert Shearman
*
* 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
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "ddeml.h"
#include "shellapi.h"
#include "shobjidl.h"
#include "shlwapi.h"
#include "shell32_main.h"
#include "wine/debug.h"
#include "wine/unicode.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
/* String handles */
static HSZ hszProgmanTopic;
static HSZ hszProgmanService;
static HSZ hszAsterisk;
static HSZ hszShell;
static HSZ hszAppProperties;
static HSZ hszFolders;
static HSZ hszGroups;
/* DDE Instance ID */
static DWORD dwDDEInst;
static const char *debugstr_hsz( HSZ hsz )
{
WCHAR buffer[256];
if (!DdeQueryStringW( dwDDEInst, hsz, buffer, ARRAY_SIZE(buffer), CP_WINUNICODE ))
return "<unknown>";
return debugstr_w( buffer );
}
static inline BOOL Dde_OnConnect(HSZ hszTopic, HSZ hszService)
{
if ((hszTopic == hszProgmanTopic) && (hszService == hszProgmanService))
return TRUE;
if ((hszTopic == hszProgmanTopic) && (hszService == hszAppProperties))
return TRUE;
if ((hszTopic == hszShell) && (hszService == hszFolders))
return TRUE;
if ((hszTopic == hszShell) && (hszService == hszAppProperties))
return TRUE;
return FALSE;
}
static inline void Dde_OnConnectConfirm(HCONV hconv, HSZ hszTopic, HSZ hszService)
{
TRACE( "%p %s %s\n", hconv, debugstr_hsz(hszTopic), debugstr_hsz(hszService) );
}
static inline BOOL Dde_OnWildConnect(HSZ hszTopic, HSZ hszService)
{
FIXME("stub\n");
return FALSE;
}
/* Returned string must be freed by caller */
static WCHAR *get_programs_path(const WCHAR *name)
{
static const WCHAR slashW[] = {'/',0};
WCHAR *programs, *path;
int len;
SHGetKnownFolderPath(&FOLDERID_Programs, 0, NULL, &programs);
len = lstrlenW(programs) + 1 + lstrlenW(name);
path = heap_alloc((len + 1) * sizeof(*path));
lstrcpyW(path, programs);
lstrcatW(path, slashW);
lstrcatW(path, name);
CoTaskMemFree(programs);
return path;
}
static inline HDDEDATA Dde_OnRequest(UINT uFmt, HCONV hconv, HSZ hszTopic,
HSZ hszItem)
{
if (hszTopic == hszProgmanTopic && hszItem == hszGroups && uFmt == CF_TEXT)
{
static const WCHAR asteriskW[] = {'*',0};
static const WCHAR newlineW[] = {'\r','\n',0};
static const WCHAR dotW[] = {'.',0};
static const WCHAR dotdotW[] = {'.','.',0};
WCHAR *programs;
WIN32_FIND_DATAW finddata;
HANDLE hfind;
int len = 1;
WCHAR *groups_data = heap_alloc(sizeof(WCHAR));
char *groups_dataA;
HDDEDATA ret;
groups_data[0] = 0;
programs = get_programs_path(asteriskW);
hfind = FindFirstFileW(programs, &finddata);
if (hfind)
{
do
{
if ((finddata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) &&
lstrcmpW(finddata.cFileName, dotW) && lstrcmpW(finddata.cFileName, dotdotW))
{
len += lstrlenW(finddata.cFileName) + 2;
groups_data = heap_realloc(groups_data, len * sizeof(WCHAR));
lstrcatW(groups_data, finddata.cFileName);
lstrcatW(groups_data, newlineW);
}
} while (FindNextFileW(hfind, &finddata));
FindClose(hfind);
}
len = WideCharToMultiByte(CP_ACP, 0, groups_data, -1, NULL, 0, NULL, NULL);
groups_dataA = heap_alloc(len * sizeof(WCHAR));
WideCharToMultiByte(CP_ACP, 0, groups_data, -1, groups_dataA, len, NULL, NULL);
ret = DdeCreateDataHandle(dwDDEInst, (BYTE *)groups_dataA, len, 0, hszGroups, uFmt, 0);
heap_free(groups_dataA);
heap_free(groups_data);
heap_free(programs);
return ret;
}
else if (hszTopic == hszProgmanTopic && hszItem == hszProgmanService && uFmt == CF_TEXT)
{
static BYTE groups_data[] = "\r\n";
FIXME( "returning empty groups list\n" );
/* This is a workaround for an application which expects some data
* and cannot handle NULL. */
return DdeCreateDataHandle( dwDDEInst, groups_data, sizeof(groups_data), 0, hszProgmanService, uFmt, 0 );
}
FIXME( "%u %p %s %s: stub\n", uFmt, hconv, debugstr_hsz(hszTopic), debugstr_hsz(hszItem) );
return NULL;
}
static DWORD PROGMAN_OnExecute(WCHAR *command, int argc, WCHAR **argv)
{
static const WCHAR create_groupW[] = {'C','r','e','a','t','e','G','r','o','u','p',0};
static const WCHAR delete_groupW[] = {'D','e','l','e','t','e','G','r','o','u','p',0};
static const WCHAR show_groupW[] = {'S','h','o','w','G','r','o','u','p',0};
static const WCHAR add_itemW[] = {'A','d','d','I','t','e','m',0};
static const WCHAR delete_itemW[] = {'D','e','l','e','t','e','I','t','e','m',0};
static const WCHAR replace_itemW[] = {'R','e','p','l','a','c','e','I','t','e','m',0};
static const WCHAR exit_progmanW[] = {'E','x','i','t','P','r','o','g','m','a','n',0};
static const WCHAR dotexeW[] = {'.','e','x','e',0};
static const WCHAR dotlnkW[] = {'.','l','n','k',0};
static const WCHAR slashW[] = {'/',0};
static WCHAR *last_group;
if (!strcmpiW(command, create_groupW))
{
WCHAR *path;
if (argc < 1) return DDE_FNOTPROCESSED;
path = get_programs_path(argv[0]);
CreateDirectoryW(path, NULL);
ShellExecuteW(NULL, NULL, path, NULL, NULL, SW_SHOWNORMAL);
heap_free(last_group);
last_group = path;
}
else if (!strcmpiW(command, delete_groupW))
{
WCHAR *path, *path2;
SHFILEOPSTRUCTW shfos = {0};
int ret;
if (argc < 1) return DDE_FNOTPROCESSED;
path = get_programs_path(argv[0]);
path2 = heap_alloc((strlenW(path) + 2) * sizeof(*path));
strcpyW(path2, path);
path2[strlenW(path) + 1] = 0;
shfos.wFunc = FO_DELETE;
shfos.pFrom = path2;
shfos.fFlags = FOF_NOCONFIRMATION;
ret = SHFileOperationW(&shfos);
heap_free(path2);
heap_free(path);
if (ret || shfos.fAnyOperationsAborted) return DDE_FNOTPROCESSED;
}
else if (!strcmpiW(command, show_groupW))
{
WCHAR *path;
/* Win32 requires the second parameter to be present but seems to
* ignore its actual value. */
if (argc < 2) return DDE_FNOTPROCESSED;
path = get_programs_path(argv[0]);
ShellExecuteW(NULL, NULL, path, NULL, NULL, SW_SHOWNORMAL);
heap_free(last_group);
last_group = path;
}
else if (!strcmpiW(command, add_itemW))
{
WCHAR *path, *name;
DWORD len;
IShellLinkW *link;
IPersistFile *file;
HRESULT hres;
if (argc < 1) return DDE_FNOTPROCESSED;
hres = CoCreateInstance(&CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
&IID_IShellLinkW, (void **)&link);
if (FAILED(hres)) return DDE_FNOTPROCESSED;
len = SearchPathW(NULL, argv[0], dotexeW, 0, NULL, NULL);
if (len == 0)
{
IShellLinkW_Release(link);
return DDE_FNOTPROCESSED;
}
path = heap_alloc(len * sizeof(WCHAR));
SearchPathW(NULL, argv[0], dotexeW, len, path, NULL);
IShellLinkW_SetPath(link, path);
heap_free(path);
if (argc >= 2) IShellLinkW_SetDescription(link, argv[1]);
if (argc >= 4) IShellLinkW_SetIconLocation(link, argv[2], atoiW(argv[3]));
if (argc >= 7) IShellLinkW_SetWorkingDirectory(link, argv[6]);
if (argc >= 8) IShellLinkW_SetHotkey(link, atoiW(argv[7]));
if (argc >= 9)
{
if (atoiW(argv[8]) == 0) IShellLinkW_SetShowCmd(link, SW_SHOWMINNOACTIVE);
else if (atoiW(argv[8]) == 1) IShellLinkW_SetShowCmd(link, SW_SHOWNORMAL);
}
hres = IShellLinkW_QueryInterface(link, &IID_IPersistFile, (void **)&file);
if (FAILED(hres))
{
IShellLinkW_Release(link);
return DDE_FNOTPROCESSED;
}
if (argc >= 2)
{
name = heap_alloc((strlenW(last_group) + 1 + strlenW(argv[1]) + 5) * sizeof(*name));
lstrcpyW(name, last_group);
lstrcatW(name, slashW);
lstrcatW(name, argv[1]);
lstrcatW(name, dotlnkW);
}
else
{
const WCHAR *filename = PathFindFileNameW(argv[0]);
int len = PathFindExtensionW(filename) - filename;
name = heap_alloc((strlenW(last_group) + 1 + len + 5) * sizeof(*name));
lstrcpyW(name, last_group);
lstrcatW(name, slashW);
lstrcpynW(name+strlenW(name), filename, len + 1);
lstrcatW(name, dotlnkW);
}
hres = IPersistFile_Save(file, name, TRUE);
heap_free(name);
IPersistFile_Release(file);
IShellLinkW_Release(link);
if (FAILED(hres)) return DDE_FNOTPROCESSED;
}
else if (!strcmpiW(command, delete_itemW) || !strcmpiW(command, replace_itemW))
{
WCHAR *name;
BOOL ret;
if (argc < 1) return DDE_FNOTPROCESSED;
name = heap_alloc((strlenW(last_group) + 1 + strlenW(argv[0]) + 5) * sizeof(*name));
lstrcpyW(name, last_group);
lstrcatW(name, slashW);
lstrcatW(name, argv[0]);
lstrcatW(name, dotlnkW);
ret = DeleteFileW(name);
heap_free(name);
if (!ret) return DDE_FNOTPROCESSED;
}
else if (!strcmpiW(command, exit_progmanW))
{
/* do nothing */
}
else
{
FIXME("unhandled command %s\n", debugstr_w(command));
return DDE_FNOTPROCESSED;
}
return DDE_FACK;
}
static DWORD parse_dde_command(HSZ hszTopic, WCHAR *command)
{
static const WCHAR opcode_end[] = {' ',',','(',')','[',']','"',0};
static const WCHAR param_end[] = {',','(',')','[',']',0};
WCHAR *original = command;
WCHAR *opcode = NULL, **argv = NULL, *p;
int argc = 0, i;
DWORD ret = DDE_FACK;
while (*command == ' ') command++;
if (*command != '[') goto error;
while (*command == '[')
{
argc = 0;
argv = heap_alloc(sizeof(*argv));
command++;
while (*command == ' ') command++;
if (!(p = strpbrkW(command, opcode_end))) goto error;
opcode = strndupW(command, p - command);
command = p;
while (*command == ' ') command++;
if (*command == '(')
{
command++;
while (*command != ')')
{
while (*command == ' ') command++;
if (*command == '"')
{
command++;
if (!(p = strchrW(command, '"'))) goto error;
}
else
{
if (!(p = strpbrkW(command, param_end))) goto error;
while (p[-1] == ' ') p--;
}
argc++;
argv = heap_realloc(argv, argc * sizeof(*argv));
argv[argc-1] = strndupW(command, p - command);
command = p;
if (*command == '"') command++;
while (*command == ' ') command++;
if (*command == ',') command++;
else if (*command != ')') goto error;
}
command++;
while (*command == ' ') command++;
}
if (*command != ']') goto error;
command++;
while (*command == ' ') command++;
if (hszTopic == hszProgmanTopic)
ret = PROGMAN_OnExecute(opcode, argc, argv);
else
{
FIXME("unhandled topic %s, command %s\n", debugstr_hsz(hszTopic), debugstr_w(opcode));
ret = DDE_FNOTPROCESSED;
}
heap_free(opcode);
for (i = 0; i < argc; i++) heap_free(argv[i]);
heap_free(argv);
if (ret == DDE_FNOTPROCESSED) break;
}
return ret;
error:
ERR("failed to parse command %s\n", debugstr_w(original));
heap_free(opcode);
for (i = 0; i < argc; i++) heap_free(argv[i]);
heap_free(argv);
return DDE_FNOTPROCESSED;
}
static DWORD Dde_OnExecute(HCONV hconv, HSZ hszTopic, HDDEDATA hdata)
{
WCHAR *command;
DWORD len;
DWORD ret;
len = DdeGetData(hdata, NULL, 0, 0);
if (!len) return DDE_FNOTPROCESSED;
command = heap_alloc(len);
DdeGetData(hdata, (BYTE *)command, len, 0);
TRACE("conv=%p topic=%s data=%s\n", hconv, debugstr_hsz(hszTopic), debugstr_w(command));
ret = parse_dde_command(hszTopic, command);
heap_free(command);
return ret;
}
static inline void Dde_OnDisconnect(HCONV hconv)
{
TRACE( "%p\n", hconv );
}
static HDDEDATA CALLBACK DdeCallback(
UINT uType,
UINT uFmt,
HCONV hconv,
HSZ hsz1,
HSZ hsz2,
HDDEDATA hdata,
ULONG_PTR dwData1,
ULONG_PTR dwData2)
{
switch (uType)
{
case XTYP_CONNECT:
return (HDDEDATA)(DWORD_PTR)Dde_OnConnect(hsz1, hsz2);
case XTYP_CONNECT_CONFIRM:
Dde_OnConnectConfirm(hconv, hsz1, hsz2);
return NULL;
case XTYP_WILDCONNECT:
return (HDDEDATA)(DWORD_PTR)Dde_OnWildConnect(hsz1, hsz2);
case XTYP_REQUEST:
return Dde_OnRequest(uFmt, hconv, hsz1, hsz2);
case XTYP_EXECUTE:
return (HDDEDATA)(DWORD_PTR)Dde_OnExecute(hconv, hsz1, hdata);
case XTYP_DISCONNECT:
Dde_OnDisconnect(hconv);
return NULL;
default:
return NULL;
}
}
/*************************************************************************
* ShellDDEInit (SHELL32.@)
*
* Registers the Shell DDE services with the system so that applications
* can use them.
*
* PARAMS
* bInit [I] TRUE to initialize the services, FALSE to uninitialize.
*
* RETURNS
* Nothing.
*/
void WINAPI ShellDDEInit(BOOL bInit)
{
TRACE("bInit = %s\n", bInit ? "TRUE" : "FALSE");
if (bInit)
{
static const WCHAR wszProgman[] = {'P','r','o','g','m','a','n',0};
static const WCHAR wszAsterisk[] = {'*',0};
static const WCHAR wszShell[] = {'S','h','e','l','l',0};
static const WCHAR wszAppProperties[] =
{'A','p','p','P','r','o','p','e','r','t','i','e','s',0};
static const WCHAR wszFolders[] = {'F','o','l','d','e','r','s',0};
static const WCHAR wszGroups[] = {'G','r','o','u','p','s',0};
DdeInitializeW(&dwDDEInst, DdeCallback, CBF_FAIL_ADVISES | CBF_FAIL_POKES, 0);
hszProgmanTopic = DdeCreateStringHandleW(dwDDEInst, wszProgman, CP_WINUNICODE);
hszProgmanService = DdeCreateStringHandleW(dwDDEInst, wszProgman, CP_WINUNICODE);
hszAsterisk = DdeCreateStringHandleW(dwDDEInst, wszAsterisk, CP_WINUNICODE);
hszShell = DdeCreateStringHandleW(dwDDEInst, wszShell, CP_WINUNICODE);
hszAppProperties = DdeCreateStringHandleW(dwDDEInst, wszAppProperties, CP_WINUNICODE);
hszFolders = DdeCreateStringHandleW(dwDDEInst, wszFolders, CP_WINUNICODE);
hszGroups = DdeCreateStringHandleW(dwDDEInst, wszGroups, CP_WINUNICODE);
DdeNameService(dwDDEInst, hszFolders, 0, DNS_REGISTER);
DdeNameService(dwDDEInst, hszProgmanService, 0, DNS_REGISTER);
DdeNameService(dwDDEInst, hszShell, 0, DNS_REGISTER);
}
else
{
/* unregister all services */
DdeNameService(dwDDEInst, 0, 0, DNS_UNREGISTER);
DdeFreeStringHandle(dwDDEInst, hszFolders);
DdeFreeStringHandle(dwDDEInst, hszAppProperties);
DdeFreeStringHandle(dwDDEInst, hszShell);
DdeFreeStringHandle(dwDDEInst, hszAsterisk);
DdeFreeStringHandle(dwDDEInst, hszProgmanService);
DdeFreeStringHandle(dwDDEInst, hszProgmanTopic);
DdeUninitialize(dwDDEInst);
}
}
Reference in a new issue View git blame Copy permalink