private TextSecureDataMessage createTextSecureMessage(TextSecureEnvelope envelope, DataMessage content)
{
TextSecureGroup groupInfo = createGroupInfo(envelope, content);
LinkedList <TextSecureAttachment> attachments = new LinkedList <TextSecureAttachment>();
bool endSession = ((content.Flags & (uint)DataMessage.Types.Flags.END_SESSION) != 0);
foreach (AttachmentPointer pointer in content.AttachmentsList)
{
attachments.AddLast(new TextSecureAttachmentPointer(pointer.Id,
pointer.ContentType,
pointer.Key.ToByteArray(),
envelope.getRelay(),
pointer.HasSize ? new May <uint>(pointer.Size) : May <uint> .NoValue,
pointer.HasThumbnail ? new May <byte[]>(pointer.Thumbnail.ToByteArray()) : May <byte[]> .NoValue));
}
return(new TextSecureDataMessage(envelope.getTimestamp(), groupInfo, attachments,
content.Body, endSession));
}
private async Task <GroupContext> createGroupContent(TextSecureGroup group)
{
GroupContext.Builder builder = GroupContext.CreateBuilder();
builder.SetId(ByteString.CopyFrom(group.getGroupId()));
if (group.getType() != TextSecureGroup.Type.DELIVER)
{
if (group.getType() == TextSecureGroup.Type.UPDATE)
{
builder.SetType(GroupContext.Types.Type.UPDATE);
}
else if (group.getType() == TextSecureGroup.Type.QUIT)
{
builder.SetType(GroupContext.Types.Type.QUIT);
}
else
{
throw new Exception("Unknown type: " + group.getType());
}
if (group.getName().HasValue)
{
builder.SetName(group.getName().ForceGetValue());
}
if (group.getMembers().HasValue)
{
builder.AddRangeMembers(group.getMembers().ForceGetValue());
}
if (group.getAvatar().HasValue&& group.getAvatar().ForceGetValue().isStream())
{
AttachmentPointer pointer = await createAttachmentPointer(group.getAvatar().ForceGetValue().asStream());
builder.SetAvatar(pointer);
}
}
else
{
builder.SetType(GroupContext.Types.Type.DELIVER);
}
return(builder.Build());
}