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signal_receivers.py
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signal_receivers.py
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# Copyright (C) 2022 The Software Heritage developers
# See the AUTHORS file at the top-level directory of this distribution
# License: GNU Affero General Public License version 3, or any later version
# See top-level LICENSE file for more information
from
email.message
import
EmailMessage
from
typing
import
Type
from
..config
import
get_config
from
..inbound_email.signals
import
EmailProcessingStatus
from
..inbound_email.utils
import
get_message_plaintext
,
get_pks_from_message
from
.apps
import
APP_LABEL
from
.models
import
Request
,
RequestActorRole
,
RequestHistory
,
RequestStatus
def
handle_inbound_message
(
sender
:
Type
,
**
kwargs
)
->
EmailProcessingStatus
:
"""Handle inbound email messages for add forge now.
This uses the from field in the message to set the actor for the new entry in the
request history. We also unconditionally advance the status of requests in the
``PENDING`` or ``WAITING_FOR_FEEDBACK`` states.
The message source is saved in the request history as an escape hatch if something
goes wrong during processing.
"""
message
=
kwargs
[
"message"
]
assert
isinstance
(
message
,
EmailMessage
)
base_address
=
get_config
()[
"add_forge_now"
][
"email_address"
]
pks
=
get_pks_from_message
(
salt
=
APP_LABEL
,
base_address
=
base_address
,
message
=
message
)
if
not
pks
:
return
EmailProcessingStatus
.
IGNORED
for
pk
in
pks
:
try
:
request
=
Request
.
objects
.
get
(
pk
=
pk
)
except
Request
.
DoesNotExist
:
continue
request_updated
=
False
message_plaintext
=
get_message_plaintext
(
message
)
if
message_plaintext
:
history_text
=
message_plaintext
.
decode
(
"utf-8"
,
errors
=
"replace"
)
else
:
history_text
=
(
"Could not parse the message contents, see the original message."
)
history_entry
=
RequestHistory
(
request
=
request
,
actor
=
str
(
message
[
"from"
]),
actor_role
=
RequestActorRole
.
EMAIL
.
name
,
text
=
history_text
,
message_source
=
bytes
(
message
),
)
new_status
=
{
RequestStatus
.
PENDING
:
RequestStatus
.
WAITING_FOR_FEEDBACK
,
RequestStatus
.
WAITING_FOR_FEEDBACK
:
RequestStatus
.
FEEDBACK_TO_HANDLE
,
}
.
get
(
RequestStatus
[
request
.
status
])
if
new_status
:
request
.
status
=
history_entry
.
new_status
=
new_status
.
name
request_updated
=
True
history_entry
.
save
()
if
request_updated
:
request
.
save
()
return
EmailProcessingStatus
.
PROCESSED
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