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Base: resort to more drastic means to query profile directory #4697

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merged 1 commit into from
Jan 26, 2023
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Base: resort to more drastic means to query profile directory #4697

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86 changes: 69 additions & 17 deletions CoreFoundation/Base.subproj/CFPlatform.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,10 @@

#if TARGET_OS_WIN32
#include <lm.h>
#include <sddl.h>
#include <shellapi.h>
#include <shlobj.h>
#include <shlwapi.h>
#include <WinIoCtl.h>
#include <direct.h>
#include <process.h>
Expand Down Expand Up @@ -582,26 +584,76 @@ CF_EXPORT CFURLRef CFCopyHomeDirectoryURLForUser(CFStringRef uName) {
return CFCopyHomeDirectoryURL();
}

CFIndex ulLength = CFStringGetLength(uName);
static const wchar_t * const kProfileListPath =
L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\ProfileList\\";
static const wchar_t * const kProfileImagePath = L"ProfileImagePath";

CFURLRef url = NULL;

UniChar *buffer = calloc(ulLength + 1, sizeof(UniChar));
if (buffer == NULL)
CFIndex ulLength = CFStringGetLength(uName);
UniChar *pwszUserName =
CFAllocatorAllocate(kCFAllocatorSystemDefault,
(ulLength + 1) * sizeof(UniChar), 0);
if (pwszUserName == NULL)
return NULL;
CFStringGetCharacters(uName, CFRangeMake(0, ulLength), buffer);

CFURLRef url = NULL;
LPUSER_INFO_1 lpUI1 = NULL;
if (NetUserGetInfo(NULL, buffer, 1, (LPBYTE*)&lpUI1) == NERR_Success) {
CFStringRef path =
CFStringCreateWithCharacters(kCFAllocatorSystemDefault,
lpUI1->usri1_home_dir,
wcslen(lpUI1->usri1_home_dir));
url = CFURLCreateWithFileSystemPath(kCFAllocatorSystemDefault, path,
kCFURLWindowsPathStyle, true);
CFRelease(path);
NetApiBufferFree(lpUI1);
}
free(buffer);
CFStringGetCharacters(uName, CFRangeMake(0, ulLength), pwszUserName);
pwszUserName[ulLength] = L'\0';

DWORD cbSID = 0;
DWORD cchReferencedDomainName = 0;
SID_NAME_USE eUse;
LookupAccountNameW(NULL, pwszUserName, NULL, &cbSID, NULL,
&cchReferencedDomainName, &eUse);

LPBYTE pSID = CFAllocatorAllocate(kCFAllocatorSystemDefault, cbSID, 0);
LPWSTR pwszReferencedDomainName =
CFAllocatorAllocate(kCFAllocatorSystemDefault,
(cchReferencedDomainName + 1) * sizeof(UniChar), 0);

if (LookupAccountNameW(NULL, pwszUserName, pSID, &cbSID,
pwszReferencedDomainName, &cchReferencedDomainName,
&eUse)) {
LPWSTR pwszSID;

if (ConvertSidToStringSidW(pSID, &pwszSID)) {
DWORD cchBuffer = wcslen(kProfileListPath) + wcslen(pwszSID) + 1;
PWSTR pwszKeyPath =
CFAllocatorAllocate(kCFAllocatorSystemDefault,
cchBuffer * sizeof(UniChar), 0);

DWORD dwOffset =
StrCatChainW(pwszKeyPath, cchBuffer, 0, kProfileListPath);
StrCatChainW(pwszKeyPath, cchBuffer, dwOffset, pwszSID);

DWORD cbData = 0;
RegGetValueW(HKEY_LOCAL_MACHINE, pwszKeyPath, kProfileImagePath,
RRF_RT_REG_SZ, NULL, NULL, &cbData);

LPWSTR pwszProfileImagePath =
CFAllocatorAllocate(kCFAllocatorSystemDefault, cbData, 0);
RegGetValueW(HKEY_LOCAL_MACHINE, pwszKeyPath, kProfileImagePath,
RRF_RT_REG_SZ, NULL, pwszProfileImagePath, &cbData);

CFStringRef profile =
CFStringCreateWithCharacters(kCFAllocatorSystemDefault,
pwszProfileImagePath,
cbData / sizeof(wchar_t));

url = CFURLCreateWithFileSystemPath(kCFAllocatorSystemDefault,
profile, kCFURLWindowsPathStyle,
true);
CFRelease(profile);
CFAllocatorDeallocate(kCFAllocatorSystemDefault, pwszProfileImagePath);
CFAllocatorDeallocate(kCFAllocatorSystemDefault, pwszKeyPath);
}

LocalFree(pwszSID);
}

CFAllocatorDeallocate(kCFAllocatorSystemDefault, pwszReferencedDomainName);
CFAllocatorDeallocate(kCFAllocatorSystemDefault, pSID);
CFAllocatorDeallocate(kCFAllocatorSystemDefault, pwszUserName);

return url;
#else
Expand Down