public NativeMethods.IStorage GetStorage(string Path)
{
if (STGRefs.ContainsKey(Path.ToUpper()))
{
return(STGRefs[Path.ToUpper()]);
}
NativeMethods.IStorage newStorage;
string[] chunks = Path.Split('\\');
string name = chunks.Last();
string parentPath = Path.Replace("\\" + name, "");
NativeMethods.IStorage parentStorage = GetStorage(parentPath);
parentStorage.OpenStorage(name, null, NativeMethods.STGM.READWRITE | NativeMethods.STGM.SHARE_EXCLUSIVE, IntPtr.Zero, 0, out newStorage);
STGRefs[Path.ToUpper()] = newStorage;
return(newStorage);
}
/// <summary>
/// Gets the MAPI property value from a stream or storage in this storage.
/// </summary>
/// <param name="propIdentifier"> The 4 char hexadecimal prop identifier. </param>
/// <returns> The value of the MAPI property or null if not found. </returns>
private object GetMapiPropertyFromStreamOrStorage(string propIdentifier)
{
// Get list of stream and storage identifiers which map to properties
var propKeys = new List <string>();
propKeys.AddRange(_streamStatistics.Keys);
propKeys.AddRange(_subStorageStatistics.Keys);
// Determine if the property identifier is in a stream or sub storage
string propTag = null;
var propType = PropertyType.PT_UNSPECIFIED;
foreach (var propKey in propKeys)
{
if (!propKey.StartsWith(MapiTags.SubStgVersion1 + "_" + propIdentifier))
{
continue;
}
propTag = propKey.Substring(12, 8);
propType = (PropertyType)ushort.Parse(propKey.Substring(16, 4), NumberStyles.HexNumber);
break;
}
// When null then we didn't find the property
if (propTag == null)
{
return(null);
}
// Depending on prop type use method to get property value
var containerName = MapiTags.SubStgVersion1 + "_" + propTag;
switch (propType)
{
case PropertyType.PT_UNSPECIFIED:
return(null);
case PropertyType.PT_STRING8:
//return GetStreamAsString(containerName, Encoding.UTF8);
return(GetStreamAsString(containerName, Encoding.Default));
case PropertyType.PT_UNICODE:
return(GetStreamAsString(containerName, Encoding.Unicode));
case PropertyType.PT_BINARY:
return(GetStreamBytes(containerName));
case PropertyType.PT_MV_STRING8:
case PropertyType.PT_MV_UNICODE:
// If the property is a unicode multiview item we need to read all the properties
// again and filter out all the multivalue names, they end with -00000000, -00000001, etc..
var multiValueContainerNames = propKeys.Where(propKey => propKey.StartsWith(containerName + "-")).ToList();
var values = new List <string>();
foreach (var multiValueContainerName in multiValueContainerNames)
{
var value = GetStreamAsString(multiValueContainerName,
propType == PropertyType.PT_MV_STRING8 ? Encoding.Default : Encoding.Unicode);
// Multi values always end with a null char so we need to strip that one off
if (value.EndsWith("/0"))
{
value = value.Substring(0, value.Length - 1);
}
values.Add(value);
}
return(values);
case PropertyType.PT_OBJECT:
return
(NativeMethods.CloneStorage(
_storage.OpenStorage(containerName, IntPtr.Zero,
NativeMethods.STGM.READ | NativeMethods.STGM.SHARE_EXCLUSIVE,
IntPtr.Zero, 0), true));
default:
throw new ApplicationException("MAPI property has an unsupported type and can not be retrieved.");
}
}
