mirror of
https://git.pleroma.social/pleroma/relay.git
synced 2024-11-21 22:17:59 +00:00
http signatures: cache things we've already signed
this helps with the scatter/gather
This commit is contained in:
parent
18b17f91e3
commit
190ccf27d1
|
@ -7,6 +7,7 @@ from Crypto.PublicKey import RSA
|
|||
from Crypto.Hash import SHA, SHA256, SHA512
|
||||
from Crypto.Signature import PKCS1_v1_5
|
||||
|
||||
from cachetools import LFUCache
|
||||
from async_lru import alru_cache
|
||||
|
||||
from .remote_actor import fetch_actor
|
||||
|
@ -37,6 +38,23 @@ def build_signing_string(headers, used_headers):
|
|||
return '\n'.join(map(lambda x: ': '.join([x.lower(), headers[x]]), used_headers))
|
||||
|
||||
|
||||
SIGSTRING_CACHE = LFUCache(1024)
|
||||
|
||||
def sign_signing_string(sigstring, key):
|
||||
if sigstring in SIGSTRING_CACHE:
|
||||
return SIGSTRING_CACHE[sigstring]
|
||||
|
||||
pkcs = PKCS1_v1_5.new(key)
|
||||
h = SHA256.new()
|
||||
h.update(sigstring.encode('ascii'))
|
||||
sigdata = pkcs.sign(h)
|
||||
|
||||
sigdata = base64.b64encode(sigdata)
|
||||
SIGSTRING_CACHE[sigstring] = sigdata.decode('ascii')
|
||||
|
||||
return SIGSTRING_CACHE[sigstring]
|
||||
|
||||
|
||||
def sign_headers(headers, key, key_id):
|
||||
headers = {x.lower(): y for x, y in headers.items()}
|
||||
used_headers = headers.keys()
|
||||
|
@ -46,14 +64,7 @@ def sign_headers(headers, key, key_id):
|
|||
'headers': ' '.join(used_headers)
|
||||
}
|
||||
sigstring = build_signing_string(headers, used_headers)
|
||||
|
||||
pkcs = PKCS1_v1_5.new(key)
|
||||
h = SHA256.new()
|
||||
h.update(sigstring.encode('ascii'))
|
||||
sigdata = pkcs.sign(h)
|
||||
|
||||
sigdata = base64.b64encode(sigdata)
|
||||
sig['signature'] = sigdata.decode('ascii')
|
||||
sig['signature'] = sign_signing_string(sigstring, key)
|
||||
|
||||
chunks = ['{}="{}"'.format(k, v) for k, v in sig.items()]
|
||||
return ','.join(chunks)
|
||||
|
|
Loading…
Reference in a new issue