...
When an AS4Message is received by the agent it goes through a series of steps:
- Determine the the Receiving Processing Mode that that must be used to correctly process the incoming message.Each
...
- configured Receiving Processing Mode
...
- is inspected and assigned a score.
...
-
The Receiving Processing Mode
...
- that best matches the
...
- received
AS4Message
...
- will be used to further process
...
- the
AS4Message.
...
IMPORTANT:
...
If
...
none
...
of
...
the
...
configured
...
Receiving
...
Processing
...
Modes
...
sufficiently
...
match
...
the
...
received
...
AS4Message,
...
or
...
if
...
it
...
is
...
impossible
...
to
...
select
...
just
...
one
...
matching
...
Receiving
...
Processing
...
Mode
...
,
...
then
...
the
...
Agent
...
will
...
stop
...
processing
...
the
...
received
...
AS4Messageright
...
here
...
since
...
it
...
is
...
not
...
possible
...
to
...
correctly
...
process
...
the
...
message
...
.
When a Receiving Processing Mode is selected, the received message will be validated. The validation consists of the following rules:
- The SOAP body of the
AS4Messageshould be empty - Each
ParttInfoelement should have an uniquehrefreference to a embedded payload (hrefthat starts with'cid:') - Each included
Attachmentshould reference aPartInfo
- The SOAP body of the
After the validation, the included
Attachment's (if any) will be decrypted using the information found in the assigned Receiving Processing Mode (decryption algorithm that must be used, the certificate that must be used to decrypt, ...). Decryption only takes place if this is allowed by the pmode: this means that theDecryptionoption must be set toRequiredorAllowed.
...
When the
Decryptionoption is set toIgnored, the received message will not be decrypted. WhenDecryptionis set toNotAllowedthe Receive Agent will respond with anErrorsignalmessage if the message is encrypted.After the message is possibly decrypted, the Agent verifies if the signature (if present) is valid.
This is only done when the
Signatureoption in the pmode is set toRequiredorAllowed.
...
In the case of
IgnoredorNotAllowedthe verification will not take place or isn't allowed at all.
...
Note:
...
for
...
incoming
...
Non-Repudiation
...
Receipt's,
...
the
...
Receiving
...
Processing
...
Mode
...
has
...
an
...
option
...
(
...
VerifyNRR)
...
to
...
also
...
verify
...
the
...
included
...
references.
After the signature has been verified, the included
Attachments's (if any) will be decompressed.>Note: if the incoming message must be forwarded, the attachments will not be decompressed.
Finally, when the message has been successfully processed, the receive agent will create a
Receiptsignalmessage. ThisReceiptwill be created conforming the settings that can be found in the Receiving Processing mode. (ReceiptHandling.UseNRRFormatto specify if NRI information must be included and theSigning.IsEnabledsetting in the responding pmode (which is defined by theReplyHandling.SendingPModeelement)). ThisReceiptwill then be sent to the sender.
...