def as2receive(request, *args, **kwargs):
"""
Function receives AS2 requests from partners.
Checks whether its an AS2 message or an MDN and acts accordingly.
"""
if request.method == 'POST':
# Process the posted AS2 message
request_body = request.read()
# Create separate raw_payload with only message-id and content type as M2Crypto's signature
# verification method does not like too many header
raw_payload = '%s: %s\n' % ('message-id', request.META['HTTP_MESSAGE_ID'])
raw_payload += '%s: %s\n\n' % ('content-type', request.META['CONTENT_TYPE'])
raw_payload += request_body
# Extract all the relevant headers from the http request
as2headers = ''
for key in request.META:
if key.startswith('HTTP') or key.startswith('CONTENT'):
as2headers += '%s: %s\n' % (key.replace("HTTP_", "").replace("_", "-").lower(), request.META[key])
pyas2init.logger.debug('Recevied an HTTP POST from %s with payload :\n%s' %
(request.META['REMOTE_ADDR'], as2headers + '\n' + request_body))
try:
pyas2init.logger.debug('Check payload to see if its an AS2 Message or ASYNC MDN.')
# Load the request header and body as a MIME Email Message
payload = email.message_from_string(as2headers + '\n' + request_body)
# Get the message sender and receiver AS2 IDs
message_org = as2utils.unescape_as2name(payload.get('as2-to'))
message_partner = as2utils.unescape_as2name(payload.get('as2-from'))
message = None
# Check if this is an MDN message
mdn_message = None
if payload.get_content_type() == 'multipart/report':
mdn_message = payload
elif payload.get_content_type() == 'multipart/signed':
for part in payload.walk():
if part.get_content_type() == 'multipart/report':
mdn_message = part
# If this is an MDN, get the message ID and check if it exists
if mdn_message:
msg_id = None
for part in mdn_message.walk():
if part.get_content_type() == 'message/disposition-notification':
msg_id = part.get_payload().pop().get('Original-Message-ID')
pyas2init.logger.info('Asynchronous MDN received for AS2 message %s to organization %s '
'from partner %s' % (msg_id, message_org, message_partner))
try:
# Get the related organization, partner and message from the db.
org = get_object_or_404(models.Organization, as2_name=message_org)
partner = get_object_or_404(models.Partner, as2_name=message_partner)
message = get_object_or_404(models.Message, message_id=msg_id.strip('<>'), organization=org, partner=partner)
models.Log.objects.create(message=message,
status='S',
text=_(u'Processing asynchronous mdn received from partner'))
as2lib.save_mdn(message, raw_payload)
except Http404:
# Send 404 response
pyas2init.logger.error('Unknown Asynchronous MDN AS2 message %s. '
'Either the partner, org or message was not found in the system' % msg_id)
return HttpResponseServerError(_(u'Unknown AS2 MDN received. Will not be processed'))
except Exception, e:
message.status = 'E'
models.Log.objects.create(message=message,
status='E',
text=_(u'Failed to send message, error is %s' % e))
# Send mail here
as2utils.senderrorreport(message, _(u'Failed to send message, error is %s' % e))
finally:
# Save message and send response to HTTP request
if message:
message.save()
return HttpResponse(_(u'AS2 ASYNC MDN has been received'))
else:
try:
# Process the received AS2 message from partner
# Initialize the processing status variables
status, adv_status, status_message = '', '', ''
pyas2init.logger.info('Received an AS2 message with id %s for organization %s from partner %s' %
(payload.get('message-id'), message_org, message_partner))
# Raise duplicate message error in case message already exists in the system
# TODO: Create composite key (message_id, organization, partner)
if models.Message.objects.filter(message_id=payload.get('message-id').strip('<>')).exists():
message = models.Message.objects.create(
message_id='%s_%s' % (payload.get('message-id').strip('<>'), payload.get('date')),
direction='IN',
status='IP',
headers=as2headers
)
raise as2utils.As2DuplicateDocument(_(u'An identical message has already '
u'been sent to our server'))
# Create a new message in the system
message = models.Message.objects.create(
message_id=payload.get('message-id').strip('<>'),
direction='IN',
status='IP',
headers=as2headers)
# Process the received payload to extract the actual message from partner
payload = as2lib.save_message(message, payload, raw_payload)
# Get the inbox folder for this partner and organization
output_dir = as2utils.join(pyas2init.gsettings['root_dir'],
'messages',
message.organization.as2_name,
'inbox',
message.partner.as2_name)
# Get the filename from the header and if not there set to message id
if message.partner.keep_filename and payload.get_filename():
filename = payload.get_filename()
else:
filename = '%s.msg' % message.message_id
# Save the message content to the store and inbox
content = payload.get_payload(decode=True)
full_filename = as2utils.storefile(output_dir, filename, content, False)
store_filename = as2utils.storefile(pyas2init.gsettings['payload_receive_store'],
message.message_id,
content,
True)
models.Log.objects.create(message=message,
status='S',
text=_(u'Message has been saved successfully to %s' % full_filename))
message.payload = models.Payload.objects.create(name=filename,
file=store_filename,
content_type=payload.get_content_type())
# Set processing status and run the post receive command.
status = 'success'
as2lib.run_post_receive(message, full_filename)
message.save()
# Catch each of the possible exceptions while processing an as2 message
except as2utils.As2DuplicateDocument, e:
status = 'warning'
adv_status = 'duplicate-document'
status_message = _(u'An error occurred during the AS2 message processing: %s' % e)
except as2utils.As2PartnerNotFound, e:
status = 'error'
adv_status = 'unknown-trading-partner'
status_message = _(u'An error occurred during the AS2 message processing: %s' % e)
def as2receive(request, *args, **kwargs):
"""
Function receives AS2 requests from partners.
Checks whether its an AS2 message or an MDN and acts accordingly.
"""
if request.method == 'POST':
# Create separate raw_payload with only message-id and content type
# as M2Crypto's signatur verification method does not like many headers
raw_payload = '%s: %s\n' % ('message-id',
request.META['HTTP_MESSAGE_ID'])
raw_payload += '%s: %s\n\n' % ('content-type',
request.META['CONTENT_TYPE'])
raw_payload += request.body
# Extract all the relevant headers from the http request
as2headers = ''
for key in request.META:
if key.startswith('HTTP') or key.startswith('CONTENT'):
h_key = key.replace("HTTP_", "").replace("_", "-").lower()
as2headers += '%s: %s\n' % (h_key, request.META[key])
request_content = as2headers.encode('utf-8') + '\n'.encode(
'utf-8') + request.body
pyas2init.logger.debug(
'Recevied an HTTP POST from %s with payload :\n%s' %
(request.META['REMOTE_ADDR'], request_content))
try:
pyas2init.logger.debug(
'Check payload to see if its an AS2 Message or ASYNC MDN.')
# Load the request header and body as a MIME Email Message
payload = email.message_from_string(request_content)
# Get the message sender and receiver AS2 identifiers
message_org_as2name = as2utils.unescape_as2name(
payload.get('as2-to'))
message_partner_as2name = as2utils.unescape_as2name(
payload.get('as2-from'))
message = None
# Check if this is an MDN message
mdn_message = None
if payload.get_content_type() == 'multipart/report':
mdn_message = payload
elif payload.get_content_type() == 'multipart/signed':
for part in payload.walk():
if part.get_content_type() == 'multipart/report':
mdn_message = part
# If this is an MDN, get the message ID and check if it exists
if mdn_message:
msg_id = None
for part in mdn_message.walk():
if part.get_content_type(
) == 'message/disposition-notification':
msg_id = part.get_payload().pop().get(
'Original-Message-ID')
pyas2init.logger.info(
'Asynchronous MDN received for AS2 message %s to organization %s '
'from partner %s' %
(msg_id, message_org_as2name, message_partner_as2name))
try:
# Get the related organization, partner and message from the db.
org = get_object_or_404(models.Organization,
as2_name=message_org_as2name)
partner = as2lib.get_partner_from_payload(payload)
if not partner:
raise Http404('No Partner matches the given query.')
message = get_object_or_404(models.Message,
message_id=msg_id.strip('<>'),
organization=org,
partner=partner)
models.Log.objects.create(
message=message,
status='S',
text=_(
u'Processing asynchronous mdn received from partner'
))
as2lib.save_mdn(message, raw_payload)
except Http404:
# Send 404 response
pyas2init.logger.error(
'Unknown Asynchronous MDN AS2 message %s. '
'Either the partner, org or message was not found in the system'
% msg_id)
return HttpResponseServerError(
_(u'Unknown AS2 MDN received. Will not be processed'))
except Exception, e:
message.status = 'E'
message.adv_status = _(
u'Failed to send message, error is:\n %s' %
traceback.format_exc(None).decode('utf-8', 'ignore'))
models.Log.objects.create(message=message,
status='E',
text=message.adv_status)
# Send mail here
as2utils.senderrorreport(message, message.adv_status)
finally:
# Save message and send response to HTTP request
if message:
message.save()
return HttpResponse(_(u'AS2 ASYNC MDN has been received'))
else:
try:
# Process the received AS2 message from partner
# Initialize the processing status variables
status, adv_status, status_message = '', '', ''
pyas2init.logger.info(
'Received an AS2 message with id %s for organization %s from partner %s'
% (payload.get('message-id'), message_org_as2name,
message_partner_as2name))
# Raise duplicate message error in case message already exists in the system
# TODO: Create composite key (message_id, organization, partner)
if models.Message.objects.filter(message_id=payload.get(
'message-id').strip('<>')).exists():
message = models.Message.objects.create(
message_id='%s_%s' %
(payload.get('message-id').strip('<>'),
payload.get('date')),
direction='IN',
status='IP',
headers=as2headers)
raise as2utils.As2DuplicateDocument(
_(u'An identical message has already '
u'been sent to our server'))
# Create a new message in the system
message = models.Message.objects.create(
message_id=payload.get('message-id').strip('<>'),
direction='IN',
status='IP',
headers=as2headers)
# Process the received payload to extract the actual message from partner
payload = as2lib.save_message(message, payload,
raw_payload)
# Get the inbox folder for this partner and organization
output_dir = as2utils.join(pyas2init.gsettings['root_dir'],
'messages',
message.organization.as2_name,
'inbox',
message.partner.as2_identifier)
# Get the filename from the header and if not there set to message id
if message.partner.keep_filename and payload.get_filename(
):
filename = payload.get_filename()[:100]
else:
filename = '%s.msg' % uuid.uuid4()
# Save the message content to the store and inbox
content = payload.get_payload(decode=True)
full_filename = as2utils.storefile(output_dir, filename,
content, False)
store_filename = as2utils.storefile(
pyas2init.gsettings['payload_receive_store'],
message.message_id, content, True)
models.Log.objects.create(
message=message,
status='S',
text=_(u'Message has been saved successfully to %s' %
full_filename))
message.payload = models.Payload.objects.create(
name=filename,
file=store_filename,
content_type=payload.get_content_type())
# Set processing status and run the post receive command.
status = 'success'
as2lib.run_post_receive(message, full_filename)
message.save()
# Catch each of the possible exceptions while processing an as2 message
except as2utils.As2DuplicateDocument, e:
status = 'warning'
adv_status = 'duplicate-document'
status_message = _(
u'An error occurred during the AS2 message processing: %s'
% e)
except as2utils.As2PartnerNotFound, e:
status = 'error'
adv_status = 'unknown-trading-partner'
status_message = _(
u'An error occurred during the AS2 message processing: %s'
% e)
def as2receive(request,*args,**kwargs):
'''
Function receives requests from partners.
Checks whether its an AS2 message or an MDN and acts accordingly.
'''
if request.method == 'POST':
as2payload = ''
for key in request.META:
if key.startswith('HTTP') or key.startswith('CONTENT'):
as2payload = as2payload + '%s: %s\n'%(key.replace("HTTP_","").replace("_","-").lower(), request.META[key])
as2headers = as2payload
as2payload = as2payload + '\n' + request.read()
pyas2init.logger.debug('Recevied an HTTP POST from %s with payload :\n%s'%(request.META['REMOTE_ADDR'],as2payload))
try:
pyas2init.logger.debug('Check payload to see if its an AS2 Message or ASYNC MDN.')
payload = email.message_from_string(as2payload)
mdn_message = None
if payload.get_content_type() == 'multipart/report':
mdn_message = payload
elif payload.get_content_type() == 'multipart/signed':
for part in payload.walk():
if part.get_content_type() == 'multipart/report':
mdn_message = part
if mdn_message:
for part in mdn_message.walk():
if (part.get_content_type() == 'message/disposition-notification'):
msg_id = part.get_payload().pop().get('Original-Message-ID')
pyas2init.logger.debug('Received MDN for AS2 message %s'%msg_id)
message = models.Message.objects.get(message_id=msg_id.strip('<>'))
models.Log.objects.create(message=message, status='S', text=_(u'Processing asynchronous mdn received from partner'))
try:
as2lib.save_mdn(message, as2payload)
except Exception,e:
message.status = 'E'
models.Log.objects.create(message=message, status='E', text=_(u'Failed to send message, error is %s' %e))
#### Send mail here
as2utils.senderrorreport(message,_(u'Failed to send message, error is %s' %e))
finally:
message.save()
return HttpResponse(_(u'AS2 ASYNC MDN has been received'))
else:
try:
pyas2init.logger.debug('Received an AS2 message with id %s'%payload.get('message-id'))
if models.Message.objects.filter(message_id=payload.get('message-id').strip('<>')).exists():
message = models.Message.objects.create(message_id='%s_%s'%(payload.get('message-id').strip('<>'),payload.get('date')),direction='IN', status='IP', headers=as2headers)
raise as2utils.as2duplicatedocument(_(u'An identical message has already been sent to our server'))
message = models.Message.objects.create(message_id=payload.get('message-id').strip('<>'),direction='IN', status='IP', headers=as2headers)
payload = as2lib.save_message(message, as2payload)
outputdir = as2utils.join(pyas2init.gsettings['root_dir'], 'messages', message.organization.as2_name, 'inbox', message.partner.as2_name)
storedir = pyas2init.gsettings['payload_receive_store']
if message.partner.keep_filename and payload.get_filename():
filename = payload.get_filename()
else:
filename = '%s.msg' %message.message_id
content = payload.get_payload(decode=True)
fullfilename = as2utils.storefile(outputdir,filename,content,False)
storefilename = as2utils.storefile(pyas2init.gsettings['payload_receive_store'],message.message_id,content,True)
models.Log.objects.create(message=message, status='S', text=_(u'Message has been saved successfully to %s'%fullfilename))
message.payload = models.Payload.objects.create(name=filename, file=storefilename, content_type=payload.get_content_type())
status, adv_status, status_message = 'success', '', ''
as2lib.run_postreceive(message,fullfilename)
message.save()
except as2utils.as2duplicatedocument,e:
status, adv_status, status_message = 'warning', 'duplicate-document', _(u'An error occured during the AS2 message processing: %s'%e)
except as2utils.as2partnernotfound,e:
status, adv_status, status_message = 'error', 'unknown-trading-partner', _(u'An error occured during the AS2 message processing: %s'%e)