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epicyon
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Code Issues 14 Releases Wiki Activity

Remove unresolvable privacyHeaders which prevent jsonld signature checks

main
Bob Mottram 2024-06-23 13:34:47 +01:00
parent 8faf85e553
commit 2288af7857
4 changed files with 30 additions and 9 deletions
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1
context.py
View File

@ -34,7 +34,6 @@ def get_individual_post_context() -> []:
"""
return [
'https://www.w3.org/ns/activitystreams',
'https://fep.example/ns/privacyHeaders',
{
"ostatus": "http://ostatus.org#",
"atomUri": "ostatus:atomUri",

13
linked_data_sig.py
View File

@ -92,12 +92,17 @@ def verify_json_signature(doc: {}, public_key_pem: str) -> bool:
return False
def generate_json_signature(doc: {}, private_key_pem: str) -> None:
def generate_json_signature(doc: {}, private_key_pem: str,
debug: bool) -> None:
"""Adds a json signature to the given ActivityPub post
"""
if not doc.get('actor'):
if debug:
print('DEBUG: generate_json_signature does not have an actor')
return
if not has_valid_context(doc):
if debug:
print('DEBUG: generate_json_signature does not have valid context')
return
options = {
"type": "RsaSignature2017",
@ -110,9 +115,15 @@ def generate_json_signature(doc: {}, private_key_pem: str) -> None:
key = load_pem_private_key(private_key_pem.encode('utf-8'),
None, backend=default_backend())
if debug:
print('DEBUG: generate_json_signature get_sha_256')
digest = get_sha_256(to_be_signed.encode("utf-8"))
if debug:
print('DEBUG: generate_json_signature key.sign')
signature = key.sign(digest,
padding.PKCS1v15(),
hazutils.Prehashed(hashes.SHA256()))
if debug:
print('DEBUG: generate_json_signature base64.b64encode')
sig = base64.b64encode(signature)
options["signatureValue"] = sig.decode("utf-8")

17
posts.py
View File

@ -124,6 +124,7 @@ from keys import get_person_key
from markdown import markdown_to_html
from followerSync import update_followers_sync_cache
from question import is_question
from pyjsonld import JsonLdError
def convert_post_content_to_html(message_json: {}) -> None:
@ -3063,11 +3064,20 @@ def send_post(signing_priv_key_pem: str, project_version: str,
post_path = inbox_url.split(to_domain, 1)[1]
if not post_json_object.get('signature'):
json_copied = False
try:
signed_post_json_object = post_json_object.copy()
generate_json_signature(signed_post_json_object, private_key_pem)
post_json_object = signed_post_json_object
json_copied = True
except BaseException as ex:
print('WARN: send_post failed to copy json post, ' + str(ex))
pprint(post_json_object)
if json_copied:
try:
generate_json_signature(signed_post_json_object,
private_key_pem, debug)
post_json_object = signed_post_json_object
except JsonLdError as ex:
print('WARN: send_post failed to JSON-LD sign post, ' + str(ex))
pprint(signed_post_json_object)
@ -3509,7 +3519,8 @@ def send_signed_json(post_json_object: {}, session, base_dir: str,
if not post_json_object.get('signature'):
try:
signed_post_json_object = post_json_object.copy()
generate_json_signature(signed_post_json_object, private_key_pem)
generate_json_signature(signed_post_json_object,
private_key_pem, debug)
post_json_object = signed_post_json_object
except BaseException as ex:
print('WARN: send_signed_json failed to JSON-LD sign post, ' +

4
tests.py
View File

@ -4171,7 +4171,7 @@ def _test_jsonld():
'-----END PUBLIC KEY-----'
signed_document = jld_document.copy()
generate_json_signature(signed_document, private_key_pem)
generate_json_signature(signed_document, private_key_pem, True)
assert signed_document
assert signed_document.get('signature')
assert signed_document['signature'].get('signatureValue')
@ -4195,7 +4195,7 @@ def _test_jsonld():
}
}
signed_document2 = jld_document2.copy()
generate_json_signature(signed_document2, private_key_pem)
generate_json_signature(signed_document2, private_key_pem, True)
assert signed_document2
assert signed_document2.get('signature')
assert signed_document2['signature'].get('signatureValue')