revert formatting nostr

This commit is contained in:
dni ⚡ 2023-03-19 11:15:26 +01:00
parent bb1941445d
commit 4549d0af09
No known key found for this signature in database
GPG key ID: 886317704CC4E618
11 changed files with 48 additions and 71 deletions

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@ -23,25 +23,21 @@
from enum import Enum from enum import Enum
class Encoding(Enum): class Encoding(Enum):
"""Enumeration type to list the various supported encodings.""" """Enumeration type to list the various supported encodings."""
BECH32 = 1 BECH32 = 1
BECH32M = 2 BECH32M = 2
CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l" CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l"
BECH32M_CONST = 0x2BC830A3 BECH32M_CONST = 0x2bc830a3
def bech32_polymod(values): def bech32_polymod(values):
"""Internal function that computes the Bech32 checksum.""" """Internal function that computes the Bech32 checksum."""
generator = [0x3B6A57B2, 0x26508E6D, 0x1EA119FA, 0x3D4233DD, 0x2A1462B3] generator = [0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3]
chk = 1 chk = 1
for value in values: for value in values:
top = chk >> 25 top = chk >> 25
chk = (chk & 0x1FFFFFF) << 5 ^ value chk = (chk & 0x1ffffff) << 5 ^ value
for i in range(5): for i in range(5):
chk ^= generator[i] if ((top >> i) & 1) else 0 chk ^= generator[i] if ((top >> i) & 1) else 0
return chk return chk
@ -61,7 +57,6 @@ def bech32_verify_checksum(hrp, data):
return Encoding.BECH32M return Encoding.BECH32M
return None return None
def bech32_create_checksum(hrp, data, spec): def bech32_create_checksum(hrp, data, spec):
"""Compute the checksum values given HRP and data.""" """Compute the checksum values given HRP and data."""
values = bech32_hrp_expand(hrp) + data values = bech32_hrp_expand(hrp) + data
@ -73,29 +68,26 @@ def bech32_create_checksum(hrp, data, spec):
def bech32_encode(hrp, data, spec): def bech32_encode(hrp, data, spec):
"""Compute a Bech32 string given HRP and data values.""" """Compute a Bech32 string given HRP and data values."""
combined = data + bech32_create_checksum(hrp, data, spec) combined = data + bech32_create_checksum(hrp, data, spec)
return hrp + "1" + "".join([CHARSET[d] for d in combined]) return hrp + '1' + ''.join([CHARSET[d] for d in combined])
def bech32_decode(bech): def bech32_decode(bech):
"""Validate a Bech32/Bech32m string, and determine HRP and data.""" """Validate a Bech32/Bech32m string, and determine HRP and data."""
if (any(ord(x) < 33 or ord(x) > 126 for x in bech)) or ( if ((any(ord(x) < 33 or ord(x) > 126 for x in bech)) or
bech.lower() != bech and bech.upper() != bech (bech.lower() != bech and bech.upper() != bech)):
):
return (None, None, None) return (None, None, None)
bech = bech.lower() bech = bech.lower()
pos = bech.rfind("1") pos = bech.rfind('1')
if pos < 1 or pos + 7 > len(bech) or len(bech) > 90: if pos < 1 or pos + 7 > len(bech) or len(bech) > 90:
return (None, None, None) return (None, None, None)
if not all(x in CHARSET for x in bech[pos + 1 :]): if not all(x in CHARSET for x in bech[pos+1:]):
return (None, None, None) return (None, None, None)
hrp = bech[:pos] hrp = bech[:pos]
data = [CHARSET.find(x) for x in bech[pos + 1 :]] data = [CHARSET.find(x) for x in bech[pos+1:]]
spec = bech32_verify_checksum(hrp, data) spec = bech32_verify_checksum(hrp, data)
if spec is None: if spec is None:
return (None, None, None) return (None, None, None)
return (hrp, data[:-6], spec) return (hrp, data[:-6], spec)
def convertbits(data, frombits, tobits, pad=True): def convertbits(data, frombits, tobits, pad=True):
"""General power-of-2 base conversion.""" """General power-of-2 base conversion."""
acc = 0 acc = 0
@ -131,12 +123,7 @@ def decode(hrp, addr):
return (None, None) return (None, None)
if data[0] == 0 and len(decoded) != 20 and len(decoded) != 32: if data[0] == 0 and len(decoded) != 20 and len(decoded) != 32:
return (None, None) return (None, None)
if ( if data[0] == 0 and spec != Encoding.BECH32 or data[0] != 0 and spec != Encoding.BECH32M:
data[0] == 0
and spec != Encoding.BECH32
or data[0] != 0
and spec != Encoding.BECH32M
):
return (None, None) return (None, None)
return (data[0], decoded) return (data[0], decoded)

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@ -1,3 +1,4 @@
from Cryptodome import Random from Cryptodome import Random
from Cryptodome.Cipher import AES from Cryptodome.Cipher import AES
@ -10,10 +11,10 @@ key = bytes.fromhex("3aa925cb69eb613e2928f8a18279c78b1dca04541dfd064df2eda66b598
BLOCK_SIZE = 16 BLOCK_SIZE = 16
class AESCipher(object): class AESCipher(object):
"""This class is compatible with crypto.createCipheriv('aes-256-cbc')""" """This class is compatible with crypto.createCipheriv('aes-256-cbc')
"""
def __init__(self, key=None): def __init__(self, key=None):
self.key = key self.key = key
@ -32,10 +33,9 @@ class AESCipher(object):
def decrypt(self, iv, enc_text): def decrypt(self, iv, enc_text):
cipher = AES.new(self.key, AES.MODE_CBC, iv=iv) cipher = AES.new(self.key, AES.MODE_CBC, iv=iv)
return self.unpad(cipher.decrypt(enc_text).decode("UTF-8")) return self.unpad(cipher.decrypt(enc_text).decode("UTF-8"))
if __name__ == "__main__": if __name__ == "__main__":
aes = AESCipher(key=key) aes = AESCipher(key=key)
iv, enc_text = aes.encrypt(plain_text) iv, enc_text = aes.encrypt(plain_text)
dec_text = aes.decrypt(iv, enc_text) dec_text = aes.decrypt(iv, enc_text)
print(dec_text) print(dec_text)

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@ -1,15 +1,20 @@
import base64 from typing import *
import json
import os
import ssl import ssl
import time import time
from typing import * import json
import os
import base64
from ..event import EncryptedDirectMessage, Event, EventKind from ..event import Event
from ..filter import Filter, Filters
from ..key import PrivateKey, PublicKey
from ..message_type import ClientMessageType
from ..relay_manager import RelayManager from ..relay_manager import RelayManager
from ..message_type import ClientMessageType
from ..key import PrivateKey, PublicKey
from ..filter import Filter, Filters
from ..event import Event, EventKind, EncryptedDirectMessage
from ..relay_manager import RelayManager
from ..message_type import ClientMessageType
# from aes import AESCipher # from aes import AESCipher
from . import cbc from . import cbc

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@ -7,23 +7,23 @@ class Delegation:
delegator_pubkey: str delegator_pubkey: str
delegatee_pubkey: str delegatee_pubkey: str
event_kind: int event_kind: int
duration_secs: int = 30 * 24 * 60 # default to 30 days duration_secs: int = 30*24*60 # default to 30 days
signature: str = None # set in PrivateKey.sign_delegation signature: str = None # set in PrivateKey.sign_delegation
@property @property
def expires(self) -> int: def expires(self) -> int:
return int(time.time()) + self.duration_secs return int(time.time()) + self.duration_secs
@property @property
def conditions(self) -> str: def conditions(self) -> str:
return f"kind={self.event_kind}&created_at<{self.expires}" return f"kind={self.event_kind}&created_at<{self.expires}"
@property @property
def delegation_token(self) -> str: def delegation_token(self) -> str:
return f"nostr:delegation:{self.delegatee_pubkey}:{self.conditions}" return f"nostr:delegation:{self.delegatee_pubkey}:{self.conditions}"
def get_tag(self) -> list[str]: def get_tag(self) -> list[str]:
"""Called by Event""" """ Called by Event """
return [ return [
"delegation", "delegation",
self.delegator_pubkey, self.delegator_pubkey,

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@ -1,11 +1,10 @@
import json
import time import time
import json
from dataclasses import dataclass, field from dataclasses import dataclass, field
from enum import IntEnum from enum import IntEnum
from hashlib import sha256
from typing import List from typing import List
from secp256k1 import PublicKey from secp256k1 import PublicKey
from hashlib import sha256
from .message_type import ClientMessageType from .message_type import ClientMessageType

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@ -1,15 +1,14 @@
import base64
import secrets import secrets
from hashlib import sha256 import base64
import secp256k1 import secp256k1
from cffi import FFI from cffi import FFI
from cryptography.hazmat.primitives import padding
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.primitives import padding
from hashlib import sha256
from . import bech32
from .delegation import Delegation from .delegation import Delegation
from .event import EncryptedDirectMessage, Event, EventKind from .event import EncryptedDirectMessage, Event, EventKind
from . import bech32
class PublicKey: class PublicKey:

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@ -1,9 +1,8 @@
import json import json
from queue import Queue from queue import Queue
from threading import Lock from threading import Lock
from .event import Event
from .message_type import RelayMessageType from .message_type import RelayMessageType
from .event import Event
class EventMessage: class EventMessage:

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@ -3,7 +3,6 @@ class ClientMessageType:
REQUEST = "REQ" REQUEST = "REQ"
CLOSE = "CLOSE" CLOSE = "CLOSE"
class RelayMessageType: class RelayMessageType:
EVENT = "EVENT" EVENT = "EVENT"
NOTICE = "NOTICE" NOTICE = "NOTICE"
@ -11,10 +10,6 @@ class RelayMessageType:
@staticmethod @staticmethod
def is_valid(type: str) -> bool: def is_valid(type: str) -> bool:
if ( if type == RelayMessageType.EVENT or type == RelayMessageType.NOTICE or type == RelayMessageType.END_OF_STORED_EVENTS:
type == RelayMessageType.EVENT
or type == RelayMessageType.NOTICE
or type == RelayMessageType.END_OF_STORED_EVENTS
):
return True return True
return False return False

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@ -1,9 +1,7 @@
import time import time
from .event import Event from .event import Event
from .key import PrivateKey from .key import PrivateKey
def zero_bits(b: int) -> int: def zero_bits(b: int) -> int:
n = 0 n = 0
@ -16,11 +14,10 @@ def zero_bits(b: int) -> int:
return 7 - n return 7 - n
def count_leading_zero_bits(hex_str: str) -> int: def count_leading_zero_bits(hex_str: str) -> int:
total = 0 total = 0
for i in range(0, len(hex_str) - 2, 2): for i in range(0, len(hex_str) - 2, 2):
bits = zero_bits(int(hex_str[i : i + 2], 16)) bits = zero_bits(int(hex_str[i:i+2], 16))
total += bits total += bits
if bits != 8: if bits != 8:
@ -28,10 +25,7 @@ def count_leading_zero_bits(hex_str: str) -> int:
return total return total
def mine_event(content: str, difficulty: int, public_key: str, kind: int, tags: list=[]) -> Event:
def mine_event(
content: str, difficulty: int, public_key: str, kind: int, tags: list = []
) -> Event:
all_tags = [["nonce", "1", str(difficulty)]] all_tags = [["nonce", "1", str(difficulty)]]
all_tags.extend(tags) all_tags.extend(tags)
@ -49,7 +43,6 @@ def mine_event(
return Event(public_key, content, created_at, kind, all_tags, event_id) return Event(public_key, content, created_at, kind, all_tags, event_id)
def mine_key(difficulty: int) -> PrivateKey: def mine_key(difficulty: int) -> PrivateKey:
sk = PrivateKey() sk = PrivateKey()
num_leading_zero_bits = count_leading_zero_bits(sk.public_key.hex()) num_leading_zero_bits = count_leading_zero_bits(sk.public_key.hex())

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@ -2,9 +2,7 @@ import json
import time import time
from queue import Queue from queue import Queue
from threading import Lock from threading import Lock
from websocket import WebSocketApp from websocket import WebSocketApp
from .event import Event from .event import Event
from .filter import Filters from .filter import Filters
from .message_pool import MessagePool from .message_pool import MessagePool

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@ -1,10 +1,12 @@
from .filter import Filters from .filter import Filters
class Subscription: class Subscription:
def __init__(self, id: str, filters: Filters = None) -> None: def __init__(self, id: str, filters: Filters=None) -> None:
self.id = id self.id = id
self.filters = filters self.filters = filters
def to_json_object(self): def to_json_object(self):
return {"id": self.id, "filters": self.filters.to_json_array()} return {
"id": self.id,
"filters": self.filters.to_json_array()
}