#include "config.h"
#include "UUID.h"
#include "NotImplemented.h"
#if PLATFORM(QT)
#include <QUuid>
#endif
#if OS(WINDOWS)
#include <objbase.h>
#elif OS(DARWIN) && USE(CF)
#include <CoreFoundation/CoreFoundation.h>
#elif OS(LINUX) && !PLATFORM(CHROMIUM)
#include <stdio.h>
#elif (OS(LINUX) && PLATFORM(CHROMIUM)) || (OS(DARWIN) && !USE(CF))
#include <wtf/HexNumber.h>
#include <wtf/RandomNumber.h>
#include <wtf/text/StringBuilder.h>
#endif
namespace WebCore {
static const char uuidVersionRequired = '4';
static const int uuidVersionIdentifierIndex = 14;
String createCanonicalUUIDString()
{
#if PLATFORM(QT) && !defined(QT_NO_QUUID_STRING)
QUuid uuid = QUuid::createUuid();
String canonicalUuidStr = uuid.toString().mid(1, 36).toLower(); ASSERT(canonicalUuidStr[uuidVersionIdentifierIndex] == uuidVersionRequired);
return canonicalUuidStr;
#elif OS(WINDOWS)
GUID uuid = { 0 };
HRESULT hr = CoCreateGuid(&uuid);
if (FAILED(hr))
return String();
wchar_t uuidStr[40];
int num = StringFromGUID2(uuid, reinterpret_cast<LPOLESTR>(uuidStr), WTF_ARRAY_LENGTH(uuidStr));
ASSERT(num == 39);
String canonicalUuidStr = String(uuidStr + 1, num - 3).lower(); ASSERT(canonicalUuidStr[uuidVersionIdentifierIndex] == uuidVersionRequired);
return canonicalUuidStr;
#elif OS(DARWIN) && USE(CF)
CFUUIDRef uuid = CFUUIDCreate(0);
CFStringRef uuidStrRef = CFUUIDCreateString(0, uuid);
String uuidStr(uuidStrRef);
CFRelease(uuidStrRef);
CFRelease(uuid);
String canonicalUuidStr = uuidStr.lower(); ASSERT(canonicalUuidStr[uuidVersionIdentifierIndex] == uuidVersionRequired);
return canonicalUuidStr;
#elif OS(LINUX) && !PLATFORM(CHROMIUM)
FILE* fptr = fopen("/proc/sys/kernel/random/uuid", "r");
if (!fptr)
return String();
char uuidStr[37];
char* result = fgets(uuidStr, sizeof(uuidStr), fptr);
fclose(fptr);
if (!result)
return String();
String canonicalUuidStr = String(uuidStr).lower(); ASSERT(canonicalUuidStr[uuidVersionIdentifierIndex] == uuidVersionRequired);
return canonicalUuidStr;
#elif (OS(LINUX) && PLATFORM(CHROMIUM)) || (OS(DARWIN) && !USE(CF))
unsigned randomData[4];
for (size_t i = 0; i < WTF_ARRAY_LENGTH(randomData); ++i)
randomData[i] = static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0));
StringBuilder builder;
appendUnsignedAsHexFixedSize(randomData[0], builder, 8, Lowercase);
builder.append("-");
appendUnsignedAsHexFixedSize(randomData[1] >> 16, builder, 4, Lowercase);
builder.append("-4");
appendUnsignedAsHexFixedSize(randomData[1] & 0x00000fff, builder, 3, Lowercase);
builder.append("-");
appendUnsignedAsHexFixedSize((randomData[2] >> 30) | 0x8, builder, 1, Lowercase);
appendUnsignedAsHexFixedSize((randomData[2] >> 16) & 0x00000fff, builder, 3, Lowercase);
builder.append("-");
appendUnsignedAsHexFixedSize(randomData[2] & 0x0000ffff, builder, 4, Lowercase);
appendUnsignedAsHexFixedSize(randomData[3], builder, 8, Lowercase);
builder.append("\n");
return builder.toString();
#else
notImplemented();
return String();
#endif
}
}