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make black happy

This commit is contained in:
Hubert Chathi 2019-07-22 12:52:39 -04:00
parent ac4746ac4b
commit 7d6c70fc7a
4 changed files with 141 additions and 178 deletions
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147
synapse/handlers/e2e_keys.py
View File

@ -635,16 +635,14 @@ class E2eKeysHandler(object):
self_device_ids = list(self_signatures.keys())
try:
# get our self-signing key to verify the signatures
self_signing_key, self_signing_key_id, self_signing_verify_key \
= yield self._get_e2e_cross_signing_verify_key(
user_id, "self_signing"
)
self_signing_key, self_signing_key_id, self_signing_verify_key = yield self._get_e2e_cross_signing_verify_key(
user_id, "self_signing"
)
# get our master key, since it may be signed
master_key, master_key_id, master_verify_key \
= yield self._get_e2e_cross_signing_verify_key(
user_id, "master"
)
master_key, master_key_id, master_verify_key = yield self._get_e2e_cross_signing_verify_key(
user_id, "master"
)
# fetch our stored devices. This is used to 1. verify
# signatures on the master key, and 2. to can compare with what
@ -652,15 +650,15 @@ class E2eKeysHandler(object):
devices = yield self.store.get_e2e_device_keys([(user_id, None)])
if user_id not in devices:
raise SynapseError(
404, "No device keys found", Codes.NOT_FOUND
)
raise SynapseError(404, "No device keys found", Codes.NOT_FOUND)
devices = devices[user_id]
for device_id, device in self_signatures.items():
try:
if ("signatures" not in device or
user_id not in device["signatures"]):
if (
"signatures" not in device
or user_id not in device["signatures"]
):
# no signature was sent
raise SynapseError(
400, "Invalid signature", Codes.INVALID_SIGNATURE
@ -678,15 +676,21 @@ class E2eKeysHandler(object):
# signature list. (In practice, we're likely to
# only have only one signature anyways.)
master_key_signature_list = []
for signing_key_id, signature in device["signatures"][user_id].items():
for signing_key_id, signature in device["signatures"][
user_id
].items():
alg, signing_device_id = signing_key_id.split(":", 1)
if (signing_device_id not in devices or
signing_key_id not in
devices[signing_device_id]["keys"]["keys"]):
if (
signing_device_id not in devices
or signing_key_id
not in devices[signing_device_id]["keys"]["keys"]
):
# signed by an unknown device, or the
# device does not have the key
raise SynapseError(
400, "Invalid signature", Codes.INVALID_SIGNATURE
400,
"Invalid signature",
Codes.INVALID_SIGNATURE,
)
sigs = device["signatures"]
@ -697,12 +701,12 @@ class E2eKeysHandler(object):
master_key.pop("unsigned", None)
if master_key != device:
raise SynapseError(
400, "Key does not match"
)
raise SynapseError(400, "Key does not match")
# get the key and check the signature
pubkey = devices[signing_device_id]["keys"]["keys"][signing_key_id]
pubkey = devices[signing_device_id]["keys"]["keys"][
signing_key_id
]
verify_key = decode_verify_key_bytes(
signing_key_id, decode_base64(pubkey)
)
@ -711,7 +715,9 @@ class E2eKeysHandler(object):
verify_signed_json(device, user_id, verify_key)
except SignatureVerifyException:
raise SynapseError(
400, "Invalid signature", Codes.INVALID_SIGNATURE
400,
"Invalid signature",
Codes.INVALID_SIGNATURE,
)
master_key_signature_list.append(
@ -733,11 +739,10 @@ class E2eKeysHandler(object):
try:
stored_device = devices[device_id]["keys"]
except KeyError:
raise SynapseError(
404, "Unknown device", Codes.NOT_FOUND
)
if self_signing_key_id in stored_device.get("signatures", {}) \
.get(user_id, {}):
raise SynapseError(404, "Unknown device", Codes.NOT_FOUND)
if self_signing_key_id in stored_device.get(
"signatures", {}
).get(user_id, {}):
# we already have a signature on this device, so we
# can skip it, since it should be exactly the same
continue
@ -751,8 +756,9 @@ class E2eKeysHandler(object):
(self_signing_key_id, user_id, device_id, signature)
)
except SynapseError as e:
failures.setdefault(user_id, {})[device_id] \
= _exception_to_failure(e)
failures.setdefault(user_id, {})[
device_id
] = _exception_to_failure(e)
except SynapseError as e:
failures[user_id] = {
device: _exception_to_failure(e)
@ -766,20 +772,18 @@ class E2eKeysHandler(object):
try:
# get our user-signing key to verify the signatures
user_signing_key, user_signing_key_id, user_signing_verify_key \
= yield self._get_e2e_cross_signing_verify_key(
user_id, "user_signing"
)
user_signing_key, user_signing_key_id, user_signing_verify_key = yield self._get_e2e_cross_signing_verify_key(
user_id, "user_signing"
)
for user, devicemap in signatures.items():
device_id = None
try:
# get the user's master key, to make sure it matches
# what was sent
stored_key, stored_key_id, _ \
= yield self._get_e2e_cross_signing_verify_key(
user, "master", user_id
)
stored_key, stored_key_id, _ = yield self._get_e2e_cross_signing_verify_key(
user, "master", user_id
)
# make sure that the user's master key is the one that
# was signed (and no others)
@ -790,26 +794,25 @@ class E2eKeysHandler(object):
device_id = None
logger.error(
"upload signature: wrong device: %s vs %s",
device, devicemap
)
raise SynapseError(
404, "Unknown device", Codes.NOT_FOUND
device,
devicemap,
)
raise SynapseError(404, "Unknown device", Codes.NOT_FOUND)
key = devicemap[device_id]
del devicemap[device_id]
if len(devicemap) > 0:
# other devices were signed -- mark those as failures
logger.error("upload signature: too many devices specified")
failure = _exception_to_failure(SynapseError(
404, "Unknown device", Codes.NOT_FOUND
))
failure = _exception_to_failure(
SynapseError(404, "Unknown device", Codes.NOT_FOUND)
)
failures[user] = {
device: failure
for device in devicemap.keys()
device: failure for device in devicemap.keys()
}
if user_signing_key_id in stored_key.get("signatures", {}) \
.get(user_id, {}):
if user_signing_key_id in stored_key.get("signatures", {}).get(
user_id, {}
):
# we already have the signature, so we can skip it
continue
@ -826,8 +829,7 @@ class E2eKeysHandler(object):
failure = _exception_to_failure(e)
if device_id is None:
failures[user] = {
device_id: failure
for device_id in devicemap.keys()
device_id: failure for device_id in devicemap.keys()
}
else:
failures.setdefault(user, {})[device_id] = failure
@ -835,8 +837,7 @@ class E2eKeysHandler(object):
failure = _exception_to_failure(e)
for user, devicemap in signature.items():
failures[user] = {
device_id: failure
for device_id in devicemap.keys()
device_id: failure for device_id in devicemap.keys()
}
# store the signature, and send the appropriate notifications for sync
@ -846,7 +847,9 @@ class E2eKeysHandler(object):
if len(self_device_ids):
yield self.device_handler.notify_device_update(user_id, self_device_ids)
if len(signed_users):
yield self.device_handler.notify_user_signature_update(user_id, signed_users)
yield self.device_handler.notify_user_signature_update(
user_id, signed_users
)
defer.returnValue({"failures": failures})
@ -858,9 +861,7 @@ class E2eKeysHandler(object):
if key is None:
logger.error("no %s key found for %s", key_type, user_id)
raise SynapseError(
404,
"No %s key found for %s" % (key_type, user_id),
Codes.NOT_FOUND
404, "No %s key found for %s" % (key_type, user_id), Codes.NOT_FOUND
)
key_id, verify_key = get_verify_key_from_cross_signing_key(key)
return key, key_id, verify_key
@ -907,14 +908,13 @@ def _check_device_signature(user_id, verify_key, signed_device, stored_device):
key_id = "%s:%s" % (verify_key.alg, verify_key.version)
# make sure the device is signed
if ("signatures" not in signed_device or user_id not in signed_device["signatures"]
or key_id not in signed_device["signatures"][user_id]):
if (
"signatures" not in signed_device
or user_id not in signed_device["signatures"]
or key_id not in signed_device["signatures"][user_id]
):
logger.error("upload signature: user not found in signatures")
raise SynapseError(
400,
"Invalid signature",
Codes.INVALID_SIGNATURE
)
raise SynapseError(400, "Invalid signature", Codes.INVALID_SIGNATURE)
signature = signed_device["signatures"][user_id][key_id]
@ -927,28 +927,19 @@ def _check_device_signature(user_id, verify_key, signed_device, stored_device):
if signed_device != stored_device:
logger.error(
"upload signatures: key does not match %s vs %s",
signed_device, stored_device
)
raise SynapseError(
400, "Key does not match",
signed_device,
stored_device,
)
raise SynapseError(400, "Key does not match")
# check the signature
signed_device["signatures"] = {
user_id: {
key_id: signature
}
}
signed_device["signatures"] = {user_id: {key_id: signature}}
try:
verify_signed_json(signed_device, user_id, verify_key)
except SignatureVerifyException:
logger.error("invalid signature on key")
raise SynapseError(
400,
"Invalid signature",
Codes.INVALID_SIGNATURE
)
raise SynapseError(400, "Invalid signature", Codes.INVALID_SIGNATURE)
def _exception_to_failure(e):

1
synapse/rest/client/v2_alpha/keys.py
View File

@ -303,6 +303,7 @@ class SignaturesUploadServlet(RestServlet):
}
}
"""
PATTERNS = client_patterns("/keys/signatures/upload$")
def __init__(self, hs):

24
synapse/storage/end_to_end_keys.py
View File

@ -62,9 +62,9 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
# add cross-signing signatures to the keys
if "signatures" in device_info:
for sig_user_id, sigs in device_info["signatures"].items():
device_info["keys"].setdefault("signatures", {}) \
.setdefault(sig_user_id, {}) \
.update(sigs)
device_info["keys"].setdefault("signatures", {}).setdefault(
sig_user_id, {}
).update(sigs)
return results
@ -131,12 +131,8 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
# get signatures on the device
signature_sql = (
"SELECT * "
" FROM e2e_cross_signing_signatures "
" WHERE %s"
) % (
" OR ".join("(" + q + ")" for q in signature_query_clauses)
)
"SELECT * " " FROM e2e_cross_signing_signatures " " WHERE %s"
) % (" OR ".join("(" + q + ")" for q in signature_query_clauses))
txn.execute(signature_sql, signature_query_params)
rows = self.cursor_to_dict(txn)
@ -144,12 +140,10 @@ class EndToEndKeyWorkerStore(SQLBaseStore):
for row in rows:
target_user_id = row["target_user_id"]
target_device_id = row["target_device_id"]
if target_user_id in result \
and target_device_id in result[target_user_id]:
result[target_user_id][target_device_id] \
.setdefault("signatures", {}) \
.setdefault(row["user_id"], {})[row["key_id"]] \
= row["signature"]
if target_user_id in result and target_device_id in result[target_user_id]:
result[target_user_id][target_device_id].setdefault(
"signatures", {}
).setdefault(row["user_id"], {})[row["key_id"]] = row["signature"]
log_kv(result)
return result

147
tests/handlers/test_e2e_keys.py
View File

@ -225,20 +225,11 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
"user_id": local_user,
"device_id": device_id,
"algorithms": ["m.olm.curve25519-aes-sha256", "m.megolm.v1.aes-sha"],
"keys": {
"curve25519:xyz": "curve25519+key",
"ed25519:xyz": device_pubkey
},
"signatures": {
local_user: {
"ed25519:xyz": "something"
}
}
"keys": {"curve25519:xyz": "curve25519+key", "ed25519:xyz": device_pubkey},
"signatures": {local_user: {"ed25519:xyz": "something"}},
}
device_signing_key = key.decode_signing_key_base64(
"ed25519",
"xyz",
"OMkooTr76ega06xNvXIGPbgvvxAOzmQncN8VObS7aBA"
"ed25519", "xyz", "OMkooTr76ega06xNvXIGPbgvvxAOzmQncN8VObS7aBA"
)
yield self.handler.upload_keys_for_user(
@ -250,26 +241,20 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
master_key = {
"user_id": local_user,
"usage": ["master"],
"keys": {
"ed25519:" + master_pubkey: master_pubkey
}
"keys": {"ed25519:" + master_pubkey: master_pubkey},
}
master_signing_key = key.decode_signing_key_base64(
"ed25519", master_pubkey,
"2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0"
"ed25519", master_pubkey, "2lonYOM6xYKdEsO+6KrC766xBcHnYnim1x/4LFGF8B0"
)
usersigning_pubkey = "Hq6gL+utB4ET+UvD5ci0kgAwsX6qP/zvf8v6OInU5iw"
usersigning_key = {
# private key: 4TL4AjRYwDVwD3pqQzcor+ez/euOB1/q78aTJ+czDNs
"user_id": local_user,
"usage": ["user_signing"],
"keys": {
"ed25519:" + usersigning_pubkey: usersigning_pubkey,
}
"keys": {"ed25519:" + usersigning_pubkey: usersigning_pubkey},
}
usersigning_signing_key = key.decode_signing_key_base64(
"ed25519", usersigning_pubkey,
"4TL4AjRYwDVwD3pqQzcor+ez/euOB1/q78aTJ+czDNs"
"ed25519", usersigning_pubkey, "4TL4AjRYwDVwD3pqQzcor+ez/euOB1/q78aTJ+czDNs"
)
sign.sign_json(usersigning_key, local_user, master_signing_key)
# private key: HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8
@ -277,13 +262,10 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
selfsigning_key = {
"user_id": local_user,
"usage": ["self_signing"],
"keys": {
"ed25519:" + selfsigning_pubkey: selfsigning_pubkey,
}
"keys": {"ed25519:" + selfsigning_pubkey: selfsigning_pubkey},
}
selfsigning_signing_key = key.decode_signing_key_base64(
"ed25519", selfsigning_pubkey,
"HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8"
"ed25519", selfsigning_pubkey, "HvQBbU+hc2Zr+JP1sE0XwBe1pfZZEYtJNPJLZJtS+F8"
)
sign.sign_json(selfsigning_key, local_user, master_signing_key)
cross_signing_keys = {
@ -301,13 +283,11 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
# private key: oyw2ZUx0O4GifbfFYM0nQvj9CL0b8B7cyN4FprtK8OI
"user_id": other_user,
"usage": ["master"],
"keys": {
"ed25519:" + other_master_pubkey: other_master_pubkey
}
"keys": {"ed25519:" + other_master_pubkey: other_master_pubkey},
}
yield self.handler.upload_signing_keys_for_user(other_user, {
"master_key": other_master_key
})
yield self.handler.upload_signing_keys_for_user(
other_user, {"master_key": other_master_key}
)
# test various signature failures (see below)
ret = yield self.handler.upload_signatures_for_device_keys(
@ -319,17 +299,18 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
device_id: {
"user_id": local_user,
"device_id": device_id,
"algorithms": ["m.olm.curve25519-aes-sha256", "m.megolm.v1.aes-sha"],
"algorithms": [
"m.olm.curve25519-aes-sha256",
"m.megolm.v1.aes-sha",
],
"keys": {
"curve25519:xyz": "curve25519+key",
# private key: OMkooTr76ega06xNvXIGPbgvvxAOzmQncN8VObS7aBA
"ed25519:xyz": device_pubkey
"ed25519:xyz": device_pubkey,
},
"signatures": {
local_user: {
"ed25519:" + selfsigning_pubkey: "something",
}
}
local_user: {"ed25519:" + selfsigning_pubkey: "something"}
},
},
# fails because device is unknown
# should fail with NOT_FOUND
@ -337,25 +318,19 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
"user_id": local_user,
"device_id": "unknown",
"signatures": {
local_user: {
"ed25519:" + selfsigning_pubkey: "something",
}
}
local_user: {"ed25519:" + selfsigning_pubkey: "something"}
},
},
# fails because the signature is invalid
# should fail with INVALID_SIGNATURE
master_pubkey: {
"user_id": local_user,
"usage": ["master"],
"keys": {
"ed25519:" + master_pubkey: master_pubkey
},
"keys": {"ed25519:" + master_pubkey: master_pubkey},
"signatures": {
local_user: {
"ed25519:" + device_pubkey: "something",
}
}
}
local_user: {"ed25519:" + device_pubkey: "something"}
},
},
},
other_user: {
# fails because the device is not the user's master-signing key
@ -364,38 +339,40 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
"user_id": other_user,
"device_id": "unknown",
"signatures": {
local_user: {
"ed25519:" + usersigning_pubkey: "something",
}
}
local_user: {"ed25519:" + usersigning_pubkey: "something"}
},
},
other_master_pubkey: {
# fails because the key doesn't match what the server has
# should fail with UNKNOWN
"user_id": other_user,
"usage": ["master"],
"keys": {
"ed25519:" + other_master_pubkey: other_master_pubkey
},
"keys": {"ed25519:" + other_master_pubkey: other_master_pubkey},
"something": "random",
"signatures": {
local_user: {
"ed25519:" + usersigning_pubkey: "something",
}
}
}
}
}
local_user: {"ed25519:" + usersigning_pubkey: "something"}
},
},
},
},
)
user_failures = ret["failures"][local_user]
self.assertEqual(user_failures[device_id]["errcode"], errors.Codes.INVALID_SIGNATURE)
self.assertEqual(user_failures[master_pubkey]["errcode"], errors.Codes.INVALID_SIGNATURE)
self.assertEqual(
user_failures[device_id]["errcode"], errors.Codes.INVALID_SIGNATURE
)
self.assertEqual(
user_failures[master_pubkey]["errcode"], errors.Codes.INVALID_SIGNATURE
)
self.assertEqual(user_failures["unknown"]["errcode"], errors.Codes.NOT_FOUND)
other_user_failures = ret["failures"][other_user]
self.assertEqual(other_user_failures["unknown"]["errcode"], errors.Codes.NOT_FOUND)
self.assertEqual(other_user_failures[other_master_pubkey]["errcode"], errors.Codes.UNKNOWN)
self.assertEqual(
other_user_failures["unknown"]["errcode"], errors.Codes.NOT_FOUND
)
self.assertEqual(
other_user_failures[other_master_pubkey]["errcode"], errors.Codes.UNKNOWN
)
# test successful signatures
del device_key["signatures"]
@ -405,33 +382,33 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
ret = yield self.handler.upload_signatures_for_device_keys(
local_user,
{
local_user: {
device_id: device_key,
master_pubkey: master_key
},
other_user: {
other_master_pubkey: other_master_key
}
}
local_user: {device_id: device_key, master_pubkey: master_key},
other_user: {other_master_pubkey: other_master_key},
},
)
self.assertEqual(ret["failures"], {})
# fetch the signed keys/devices and make sure that the signatures are there
ret = yield self.handler.query_devices(
{"device_keys": {local_user: [], other_user: []}},
0, local_user
{"device_keys": {local_user: [], other_user: []}}, 0, local_user
)
self.assertEqual(
ret["device_keys"][local_user]["xyz"]["signatures"][local_user]["ed25519:" + selfsigning_pubkey],
device_key["signatures"][local_user]["ed25519:" + selfsigning_pubkey]
ret["device_keys"][local_user]["xyz"]["signatures"][local_user][
"ed25519:" + selfsigning_pubkey
],
device_key["signatures"][local_user]["ed25519:" + selfsigning_pubkey],
)
self.assertEqual(
ret["master_keys"][local_user]["signatures"][local_user]["ed25519:" + device_id],
master_key["signatures"][local_user]["ed25519:" + device_id]
ret["master_keys"][local_user]["signatures"][local_user][
"ed25519:" + device_id
],
master_key["signatures"][local_user]["ed25519:" + device_id],
)
self.assertEqual(
ret["master_keys"][other_user]["signatures"][local_user]["ed25519:" + usersigning_pubkey],
other_master_key["signatures"][local_user]["ed25519:" + usersigning_pubkey]
ret["master_keys"][other_user]["signatures"][local_user][
"ed25519:" + usersigning_pubkey
],
other_master_key["signatures"][local_user]["ed25519:" + usersigning_pubkey],
)