/**
* Create a Dictionary based on the METADATA_RECORD.
*/
private static Dictionary <DataField, String> ToData(METADATA_RECORD metaDataRecord)
{
Dictionary <DataField, String> result = new Dictionary <DataField, String>();
result.Add(DataField.DATA_ID, metaDataRecord.dwMDIdentifier.ToString());
switch (metaDataRecord.dwMDUserType)
{
case (UInt32)METADATA_USER_TYPE.IIS_MD_UT_SERVER:
result.Add(DataField.USER_TYPE, "IIS_MD_UT_SERVER");
break;
case (UInt32)METADATA_USER_TYPE.IIS_MD_UT_FILE:
result.Add(DataField.USER_TYPE, "IIS_MD_UT_FILE");
break;
case (UInt32)METADATA_USER_TYPE.IIS_MD_UT_WAM:
result.Add(DataField.USER_TYPE, "IIS_MD_UT_WAM");
break;
case (UInt32)METADATA_USER_TYPE.ASP_MD_UT_APP:
result.Add(DataField.USER_TYPE, "ASP_MD_UT_APP");
break;
}
switch (metaDataRecord.dwMDDataType)
{
case (UInt32)METADATA_TYPES.BINARY_METADATA:
result.Add(DataField.DATA_TYPE, "BINARY_METADATA");
byte[] binaryData = new byte[metaDataRecord.dwMDDataLen];
Marshal.Copy(metaDataRecord.pbMDData, binaryData, 0, binaryData.Length);
result.Add(DataField.VALUE, ByteArrayToString(binaryData));
break;
case (UInt32)METADATA_TYPES.STRING_METADATA:
result.Add(DataField.DATA_TYPE, "STRING_METADATA");
String stringData = Marshal.PtrToStringUni(metaDataRecord.pbMDData);
result.Add(DataField.VALUE, stringData);
break;
case (UInt32)METADATA_TYPES.DWORD_METADATA:
result.Add(DataField.DATA_TYPE, "DWORD_METADATA");
uint dwordData = (uint)Marshal.ReadInt32(metaDataRecord.pbMDData);
result.Add(DataField.VALUE, dwordData.ToString());
break;
case (UInt32)METADATA_TYPES.MULTISZ_METADATA:
result.Add(DataField.DATA_TYPE, "MULTISZ_METADATA");
byte[] multiSzData = new byte[metaDataRecord.dwMDDataLen];
Marshal.Copy(metaDataRecord.pbMDData, multiSzData, 0, multiSzData.Length);
// Trim Double Nulls
string strings = Encoding.Unicode.GetString(multiSzData, 0, (int)(metaDataRecord.dwMDDataLen - 4));
result.Add(DataField.VALUE, strings);
break;
}
return(result);
}
/**
* Returns an empty list if the path is invalid, or if there are no children.
*/
public static List <Dictionary <DataField, String> > ListData(String keyPath)
{
List <Dictionary <DataField, String> > data = new List <Dictionary <DataField, String> >();
UInt32 index = 0;
bool done = false;
while (!done)
{
METADATA_RECORD record = new METADATA_RECORD();
uint len = 0;
try {
baseInterface.EnumData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, index, out len);
} catch (COMException e) {
switch ((UInt32)e.ErrorCode)
{
case 0x8007007A: { // HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER)
bool retrieved = false;
while (!retrieved)
{
try {
if (len == 0)
{
len = 1024;
}
else
{
len = 2 * len;
}
record.pbMDData = Marshal.AllocCoTaskMem((int)len);
if (record.pbMDData == IntPtr.Zero)
{
throw new ExternalException("Unable to allocate memory for Metabase data buffer.");
}
record.dwMDDataLen = (UInt32)len;
baseInterface.EnumData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, index, out len);
retrieved = true;
} catch (COMException e2) {
if ((UInt32)e2.ErrorCode == 0x8007007A)
{
Marshal.FreeCoTaskMem(record.pbMDData);
}
else
{
throw e2;
}
}
}
data.Add(ToData(record));
break;
}
case 0x80070103: // HRESULT_FROM_WIN32(ERROR_NO_MORE_ITEMS)
done = true;
break;
default:
throw e;
}
} catch (DirectoryNotFoundException) {
// HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)
done = true;
} finally {
if (record.pbMDData != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(record.pbMDData);
}
}
index++;
}
return(data);
}
/**
* Returns null if there is no data for the ID.
*/
public static Dictionary <DataField, String> GetData(String keyPath, UInt32 dataId)
{
METADATA_RECORD record = new METADATA_RECORD();
record.dwMDIdentifier = dataId;
record.dwMDAttributes = (UInt32)METADATA_ATTRIBUTES.METADATA_INHERIT;
record.dwMDUserType = (UInt32)METADATA_USER_TYPE.IIS_MD_UT_SERVER;
record.dwMDDataType = (UInt32)METADATA_TYPES.ALL_METADATA;
try {
uint len = 0;
try {
baseInterface.GetData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, out len);
} catch (COMException e) {
switch ((UInt32)e.ErrorCode)
{
case 0x8007007A: // HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER)
bool retrieved = false;
while (!retrieved)
{
try {
if (len == 0)
{
len = 1024;
}
else
{
len = 2 * len;
}
record.pbMDData = Marshal.AllocCoTaskMem((int)len);
if (record.pbMDData == IntPtr.Zero)
{
throw new ExternalException("Unable to allocate memory for Metabase data buffer.");
}
record.dwMDDataLen = (UInt32)len;
baseInterface.GetData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, out len);
retrieved = true;
} catch (COMException e2) {
if ((UInt32)e2.ErrorCode == 0x8007007A)
{
Marshal.FreeCoTaskMem(record.pbMDData);
}
else
{
throw e2;
}
}
}
return(ToData(record));
case 0x800CC801: // MD_ERROR_DATA_NOT_FOUND
break;
default:
throw e;
}
} catch (DirectoryNotFoundException) {
// HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)
}
return(null);
} finally {
if (record.pbMDData != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(record.pbMDData);
}
}
}
/**
* Create a Dictionary based on the METADATA_RECORD.
*/
private static Dictionary<DataField, String> ToData(METADATA_RECORD metaDataRecord)
{
Dictionary<DataField, String> result = new Dictionary<DataField, String>();
result.Add(DataField.DATA_ID, metaDataRecord.dwMDIdentifier.ToString());
switch(metaDataRecord.dwMDUserType) {
case (UInt32)METADATA_USER_TYPE.IIS_MD_UT_SERVER:
result.Add(DataField.USER_TYPE, "IIS_MD_UT_SERVER");
break;
case (UInt32)METADATA_USER_TYPE.IIS_MD_UT_FILE:
result.Add(DataField.USER_TYPE, "IIS_MD_UT_FILE");
break;
case (UInt32)METADATA_USER_TYPE.IIS_MD_UT_WAM:
result.Add(DataField.USER_TYPE, "IIS_MD_UT_WAM");
break;
case (UInt32)METADATA_USER_TYPE.ASP_MD_UT_APP:
result.Add(DataField.USER_TYPE, "ASP_MD_UT_APP");
break;
}
switch(metaDataRecord.dwMDDataType) {
case (UInt32)METADATA_TYPES.BINARY_METADATA:
result.Add(DataField.DATA_TYPE, "BINARY_METADATA");
byte[] binaryData = new byte[metaDataRecord.dwMDDataLen];
Marshal.Copy(metaDataRecord.pbMDData, binaryData, 0, binaryData.Length);
result.Add(DataField.VALUE, ByteArrayToString(binaryData));
break;
case (UInt32)METADATA_TYPES.STRING_METADATA:
result.Add(DataField.DATA_TYPE, "STRING_METADATA");
String stringData = Marshal.PtrToStringUni(metaDataRecord.pbMDData);
result.Add(DataField.VALUE, stringData);
break;
case (UInt32)METADATA_TYPES.DWORD_METADATA:
result.Add(DataField.DATA_TYPE, "DWORD_METADATA");
uint dwordData = (uint)Marshal.ReadInt32(metaDataRecord.pbMDData);
result.Add(DataField.VALUE, dwordData.ToString());
break;
case (UInt32)METADATA_TYPES.MULTISZ_METADATA:
result.Add(DataField.DATA_TYPE, "MULTISZ_METADATA");
byte[] multiSzData = new byte[metaDataRecord.dwMDDataLen];
Marshal.Copy(metaDataRecord.pbMDData, multiSzData, 0, multiSzData.Length);
// Trim Double Nulls
string strings = Encoding.Unicode.GetString(multiSzData, 0, (int)(metaDataRecord.dwMDDataLen - 4));
result.Add(DataField.VALUE, strings);
break;
}
return result;
}
/**
* Returns an empty list if the path is invalid, or if there are no children.
*/
public static List<Dictionary<DataField, String>> ListData(String keyPath)
{
List<Dictionary<DataField, String>> data = new List<Dictionary<DataField, String>>();
UInt32 index = 0;
bool done = false;
while(!done) {
METADATA_RECORD record = new METADATA_RECORD();
uint len = 0;
try {
baseInterface.EnumData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, index, out len);
} catch (COMException e) {
switch((UInt32)e.ErrorCode) {
case 0x8007007A: { // HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER)
bool retrieved = false;
while (!retrieved) {
try {
if (len == 0) {
len = 1024;
} else {
len = 2 * len;
}
record.pbMDData = Marshal.AllocCoTaskMem((int)len);
if (record.pbMDData == IntPtr.Zero) {
throw new ExternalException("Unable to allocate memory for Metabase data buffer.");
}
record.dwMDDataLen = (UInt32)len;
baseInterface.EnumData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, index, out len);
retrieved = true;
} catch (COMException e2) {
if ((UInt32)e2.ErrorCode == 0x8007007A) {
Marshal.FreeCoTaskMem(record.pbMDData);
} else {
throw e2;
}
}
}
data.Add(ToData(record));
break;
}
case 0x80070103: // HRESULT_FROM_WIN32(ERROR_NO_MORE_ITEMS)
done = true;
break;
default:
throw e;
}
} catch (DirectoryNotFoundException) {
// HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)
done = true;
} finally {
if (record.pbMDData != IntPtr.Zero) {
Marshal.FreeCoTaskMem(record.pbMDData);
}
}
index++;
}
return data;
}
/**
* Returns null if there is no data for the ID.
*/
public static Dictionary<DataField, String> GetData(String keyPath, UInt32 dataId)
{
METADATA_RECORD record = new METADATA_RECORD();
record.dwMDIdentifier = dataId;
record.dwMDAttributes = (UInt32)METADATA_ATTRIBUTES.METADATA_INHERIT;
record.dwMDUserType = (UInt32)METADATA_USER_TYPE.IIS_MD_UT_SERVER;
record.dwMDDataType = (UInt32)METADATA_TYPES.ALL_METADATA;
try {
uint len = 0;
try {
baseInterface.GetData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, out len);
} catch (COMException e) {
switch((UInt32)e.ErrorCode) {
case 0x8007007A: // HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER)
bool retrieved = false;
while (!retrieved) {
try {
if (len == 0) {
len = 1024;
} else {
len = 2 * len;
}
record.pbMDData = Marshal.AllocCoTaskMem((int)len);
if (record.pbMDData == IntPtr.Zero) {
throw new ExternalException("Unable to allocate memory for Metabase data buffer.");
}
record.dwMDDataLen = (UInt32)len;
baseInterface.GetData(METADATA_MASTER_ROOT_HANDLE, keyPath, ref record, out len);
retrieved = true;
} catch (COMException e2) {
if ((UInt32)e2.ErrorCode == 0x8007007A) {
Marshal.FreeCoTaskMem(record.pbMDData);
} else {
throw e2;
}
}
}
return ToData(record);
case 0x800CC801: // MD_ERROR_DATA_NOT_FOUND
break;
default:
throw e;
}
} catch (DirectoryNotFoundException) {
// HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND)
}
return null;
} finally {
if (record.pbMDData != IntPtr.Zero) {
Marshal.FreeCoTaskMem(record.pbMDData);
}
}
}
