get_autocrypt_gossip_headers_from_inner_part

Creates a new AutocryptHeaderList of relevant headers of the given type based on the recipient(s) of an e-mail message.

You must pass the decrypted inner part of the message to this function, since Autocrypt-Gossip headers are only stored within the encrypted layer.

If you don't already have the decrypted inner part available to you, you probably want to use get_autocrypt_gossip_headers instead.

Each header in the returned list will:

• have a valid address
• be of the type requested
• be complete

If no Autocrypt header is found for a recipient, no AutocryptHeader will be in the list associated with that e-mail address.

Note that the following types of Autocrypt headers will not be returned by this function:

• headers of an unrequested type
• headers that do not match an address in "From:"
• unparseable headers
• headers with unknown critical attributes
• duplicate valid headers for a given address

On error (e.g. if this version of GMime cannot handle the requested Autocrypt type, or if a parameter is missing or malformed), returns null

The returned Autocrypt headers will have their effective_date set to the earliest of either:

• the Date: header of the message or
• now (or the current time, if now is null)

Parameters:

this	a Message object.
now	a DateTime object, or null
inner_part	a Object which is the cleartext part of the inner message

Returns:

a new AutocryptHeaderList object, or null on error.