private int GetIndex(TnefNameId nameId)
{
TnefNameTag key = new TnefNameTag(nameId, TnefPropertyType.Null);
int result;
this.supportedNamedProperties.TryGetValue(key, out result);
return(result);
}
private static void AddNamedLookupEntries(Dictionary <TnefNameTag, int> dictionary)
{
Dictionary <TnefNameTag, int> dictionary2 = new Dictionary <TnefNameTag, int>(dictionary.Count);
foreach (KeyValuePair <TnefNameTag, int> keyValuePair in dictionary)
{
TnefNameTag key = new TnefNameTag(keyValuePair.Key.Id, TnefPropertyType.Null);
if (!dictionary2.ContainsKey(key))
{
dictionary2.Add(key, keyValuePair.Value);
}
}
foreach (KeyValuePair <TnefNameTag, int> keyValuePair2 in dictionary2)
{
dictionary.Add(keyValuePair2.Key, keyValuePair2.Value);
}
}
internal object this[TnefNameTag nameTag]
{
get
{
object obj = this[nameTag.Id];
if (obj != null)
{
return(obj);
}
if (this.newNamedProperties == null)
{
return(null);
}
if (!this.newNamedProperties.TryGetValue(nameTag, out obj))
{
return(null);
}
return(obj);
}
set
{
if (this[nameTag.Id] != null)
{
this[nameTag.Id] = value;
return;
}
if (value != null)
{
if (this.newNamedProperties == null)
{
this.newNamedProperties = new Dictionary <TnefNameTag, object>(TnefPropertyBag.NameTagComparer);
}
this.newNamedProperties[nameTag] = value;
return;
}
if (this.newNamedProperties != null)
{
this.newNamedProperties.Remove(nameTag);
}
}
}
private void LoadProperty(TnefPropertyReader propertyReader, DataStorage tnefStorage, long tnefStart, long tnefEnd, TnefAttributeLevel level, int embeddingDepth, Charset binaryCharset)
{
TnefPropertyTag propertyTag = propertyReader.PropertyTag;
if (propertyTag.IsMultiValued)
{
return;
}
if (TnefPropertyType.Null == propertyTag.ValueTnefType)
{
return;
}
if (propertyReader.IsNamedProperty)
{
TnefNameId propertyNameId = propertyReader.PropertyNameId;
TnefNameTag key = new TnefNameTag(propertyNameId, propertyTag.ValueTnefType);
if (this.supportedNamedProperties.ContainsKey(key))
{
if (propertyReader.IsLargeValue)
{
return;
}
this[this.GetIndex(propertyNameId)] = propertyReader.ReadValue();
}
return;
}
if (!this.supportedProperties.ContainsKey(propertyTag))
{
return;
}
TnefPropertyId id = propertyTag.Id;
int index = this.GetIndex(id);
if (TnefPropertyId.Body == id || TnefPropertyId.RtfCompressed == id || TnefPropertyId.BodyHtml == id)
{
tnefStart += (long)propertyReader.RawValueStreamOffset;
tnefEnd = tnefStart + (long)propertyReader.RawValueLength;
this[index] = new StoragePropertyValue(propertyTag, tnefStorage, tnefStart, tnefEnd);
return;
}
if (TnefPropertyId.AttachData == id)
{
tnefStart += (long)propertyReader.RawValueStreamOffset;
tnefEnd = tnefStart + (long)propertyReader.RawValueLength;
this[index] = new StoragePropertyValue(propertyTag, tnefStorage, tnefStart, tnefEnd);
if (!propertyReader.IsEmbeddedMessage)
{
return;
}
if (++embeddingDepth > 100)
{
throw new MimeException(EmailMessageStrings.NestingTooDeep(embeddingDepth, 100));
}
using (TnefReader embeddedMessageReader = propertyReader.GetEmbeddedMessageReader())
{
PureTnefMessage pureTnefMessage = new PureTnefMessage(this.attachmentData, tnefStorage, tnefStart, tnefEnd);
pureTnefMessage.Load(embeddedMessageReader, embeddingDepth, binaryCharset);
EmailMessage embeddedMessage = new EmailMessage(pureTnefMessage);
this.attachmentData.EmbeddedMessage = embeddedMessage;
return;
}
}
if (propertyReader.IsLargeValue)
{
return;
}
if (TnefPropertyId.InternetCPID == id)
{
if (TnefPropertyType.Long == propertyTag.TnefType)
{
int num = propertyReader.ReadValueAsInt32();
this[index] = num;
return;
}
}
else
{
this[index] = propertyReader.ReadValue();
}
}
internal bool Write(TnefReader reader, TnefWriter writer, TnefAttributeLevel level, bool dropRecipientTable, bool forceUnicode, byte[] scratchBuffer)
{
IDictionary <TnefPropertyTag, object> dictionary = null;
char[] array = null;
bool result;
for (;;)
{
TnefPropertyReader propertyReader = reader.PropertyReader;
if (0 >= propertyReader.PropertyCount)
{
goto IL_37A;
}
TnefAttributeTag attributeTag = reader.AttributeTag;
TnefAttributeLevel attributeLevel = reader.AttributeLevel;
bool flag = true;
while (propertyReader.ReadNextProperty())
{
TnefPropertyTag propertyTag = propertyReader.PropertyTag;
if (TnefPropertyType.Null != propertyTag.ValueTnefType)
{
if (propertyReader.IsNamedProperty)
{
TnefNameId propertyNameId = propertyReader.PropertyNameId;
TnefNameTag key = new TnefNameTag(propertyNameId, propertyTag.ValueTnefType);
int num;
if (this.supportedNamedProperties.TryGetValue(key, out num) && this.properties[num].IsDirty)
{
object obj = this[propertyNameId];
if (obj != null)
{
TnefPropertyBag.StartAttributeIfNecessary(writer, attributeTag, attributeLevel, ref flag);
writer.StartProperty(propertyTag, propertyNameId.PropertySetGuid, propertyNameId.Id);
writer.WritePropertyValue(obj);
continue;
}
continue;
}
}
else
{
TnefPropertyId id = propertyTag.Id;
int num2;
if (this.supportedProperties.TryGetValue(propertyTag, out num2) && this.properties[num2].IsDirty && (this.attachmentData == null || this.attachmentData.EmbeddedMessage == null || TnefAttributeLevel.Attachment != level || TnefAttributeTag.AttachData != attributeTag || TnefPropertyId.AttachData != id))
{
object obj = this[id];
if (obj == null)
{
continue;
}
if (!this.WriteModifiedProperty(writer, reader, propertyTag, obj, forceUnicode, ref flag, scratchBuffer))
{
if (dictionary == null)
{
dictionary = new Dictionary <TnefPropertyTag, object>(TnefPropertyBag.PropertyTagComparer);
}
if (!dictionary.ContainsKey(propertyTag))
{
dictionary.Add(propertyTag, obj);
continue;
}
continue;
}
else
{
if (dictionary != null && dictionary.ContainsKey(propertyTag))
{
dictionary.Remove(propertyTag);
continue;
}
continue;
}
}
}
if (propertyTag.ValueTnefType == TnefPropertyType.String8 && forceUnicode)
{
if (!TnefPropertyBag.IsLegacyAttribute(attributeTag))
{
TnefPropertyBag.StartAttributeIfNecessary(writer, attributeTag, attributeLevel, ref flag);
TnefPropertyBag.WriteUnicodeProperty(writer, propertyReader, propertyTag.ToUnicode(), ref array);
}
}
else if (propertyTag.IsTnefTypeValid)
{
TnefPropertyBag.StartAttributeIfNecessary(writer, attributeTag, attributeLevel, ref flag);
writer.WriteProperty(propertyReader);
}
}
}
if ((TnefAttributeTag.MapiProperties == attributeTag && level == TnefAttributeLevel.Message) || (TnefAttributeTag.Attachment == attributeTag && level == TnefAttributeLevel.Attachment))
{
if (this.newProperties != null)
{
foreach (KeyValuePair <TnefPropertyTag, object> keyValuePair in this.newProperties)
{
object obj = keyValuePair.Value;
if (obj != null)
{
this.WriteModifiedProperty(writer, reader, keyValuePair.Key, obj, forceUnicode, ref flag, scratchBuffer);
}
}
}
if (dictionary != null)
{
foreach (KeyValuePair <TnefPropertyTag, object> keyValuePair2 in dictionary)
{
this.WriteModifiedProperty(writer, reader, keyValuePair2.Key, keyValuePair2.Value, forceUnicode, ref flag, scratchBuffer);
}
}
if (this.newNamedProperties != null)
{
using (IEnumerator <KeyValuePair <TnefNameTag, object> > enumerator3 = this.newNamedProperties.GetEnumerator())
{
while (enumerator3.MoveNext())
{
KeyValuePair <TnefNameTag, object> keyValuePair3 = enumerator3.Current;
object obj = keyValuePair3.Value;
if (obj != null)
{
TnefPropertyTag tag = new TnefPropertyTag((TnefPropertyId)(-32768), keyValuePair3.Key.Type);
if (forceUnicode)
{
tag = tag.ToUnicode();
}
TnefPropertyBag.StartAttributeIfNecessary(writer, attributeTag, attributeLevel, ref flag);
writer.StartProperty(tag, keyValuePair3.Key.Id.PropertySetGuid, keyValuePair3.Key.Id.Id);
writer.WritePropertyValue(obj);
}
}
goto IL_3AC;
}
goto IL_37A;
}
}
IL_3AC:
if (!(result = reader.ReadNextAttribute()) || level != reader.AttributeLevel || TnefAttributeTag.AttachRenderData == reader.AttributeTag)
{
break;
}
continue;
IL_37A:
if (level != TnefAttributeLevel.Message || TnefAttributeTag.RecipientTable != reader.AttributeTag)
{
writer.WriteAttribute(reader);
goto IL_3AC;
}
if (!dropRecipientTable)
{
this.parentMessage.WriteRecipients(reader.PropertyReader, writer, ref array);
goto IL_3AC;
}
goto IL_3AC;
}
return(result);
}
