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README.md Normal file
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# 伟士佳杰API工具
## 生成签字
GET方法
```
from weishijiajie.params_entity import ParamEntity
from weishijiajie.sign_utils_mop import SignUtilsMOP
url = "https://xxxx/api/blade-vstec/kyyOrder/list"
params = {
'current': "1",
'size': '10'
}
params_entity = ParamEntity("Sync_KYY_USER_INFO", "1", "form", cwparamsdata)
signUrl = SignUtilsMOP.doSign(url, PublicRsaKey.privateKey, paramEntity)
```
POST方法
```
from weishijiajie.params_entity import ParamEntity
from weishijiajie.sign_utils_mop import SignUtilsMOP
"https://xxxx/api/blade-user/syncinfo/user/v1"
params_entity = ParamEntity("Sync_KYY_USER_INFO", "1", "form", None)
signUrl = SignUtilsMOP.doSign(url, PublicRsaKey.privateKey, paramEntity)
```
##

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pyproject.toml Normal file
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[project]
name="weishijiajie"
version = "5.2.2"
description = "weishijiajie API utils"
authors = [{ name = "yu moqing", email = "yumoqing@gmail.com" }]
readme = "README.md"
requires-python = ">=3.8"
license = {text = "MIT"}
dependencies = [
"Crypto"
]
[project.optional-dependencies]
dev = ["pytest", "black", "mypy"]
[build-system]
requires = ["setuptools>=61", "wheel"]
build-backend = "setuptools.build_meta"

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test/test_base64.py Normal file
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from base64_custom import Base64
base64 = Base64()
encoded = base64.encode(b'hello world')
print(f'Encoded: {encoded}') # Output: aGVsbG8gd29ybGQ=
decoded = base64.decode(encoded)
print(f'Decoded: {decoded.decode()}') # Output: hello world

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weishijiajie/__init__.py Normal file
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class Base64:
BASELENGTH = 128
LOOKUPLENGTH = 64
TWENTYFOURBITGROUP = 24
EIGHTBIT = 8
SIXTEENBIT = 16
FOURBYTE = 4
SIGN = -128
PAD = '='
def __init__(self):
self.base64Alphabet = [-1] * self.BASELENGTH
self.lookUpBase64Alphabet = [''] * self.LOOKUPLENGTH
self._init_alphabets()
def _init_alphabets(self):
for i in range(65, 91): # A-Z
self.base64Alphabet[i] = i - 65
for i in range(97, 123): # a-z
self.base64Alphabet[i] = i - 97 + 26
for i in range(48, 58): # 0-9
self.base64Alphabet[i] = i - 48 + 52
self.base64Alphabet[43] = 62 # '+'
self.base64Alphabet[47] = 63 # '/'
for i in range(0, 26):
self.lookUpBase64Alphabet[i] = chr(65 + i)
for i in range(26, 52):
self.lookUpBase64Alphabet[i] = chr(97 + i - 26)
for i in range(52, 62):
self.lookUpBase64Alphabet[i] = chr(48 + i - 52)
self.lookUpBase64Alphabet[62] = '+'
self.lookUpBase64Alphabet[63] = '/'
@staticmethod
def isWhiteSpace(char):
return char in (' ', '\n', '\r', '\t')
@staticmethod
def isPad(char):
return char == '='
def isData(self, char):
return ord(char) < self.BASELENGTH and self.base64Alphabet[ord(char)] != -1
def encode(self, binaryData: bytes) -> str:
if binaryData is None:
return None
lengthDataBits = len(binaryData) * self.EIGHTBIT
fewerThan24bits = len(binaryData) % 3
numberTriplets = len(binaryData) // 3
encodedData = []
dataIndex = 0
for _ in range(numberTriplets):
byte1 = binaryData[dataIndex]
byte2 = binaryData[dataIndex + 1]
byte3 = binaryData[dataIndex + 2]
dataIndex += 3
val1 = byte1 >> 2
val2 = ((byte1 & 0x3) << 4) | (byte2 >> 4)
val3 = ((byte2 & 0xf) << 2) | (byte3 >> 6)
val4 = byte3 & 0x3f
encodedData.extend([
self.lookUpBase64Alphabet[val1],
self.lookUpBase64Alphabet[val2],
self.lookUpBase64Alphabet[val3],
self.lookUpBase64Alphabet[val4],
])
if fewerThan24bits == 1:
byte1 = binaryData[dataIndex]
val1 = byte1 >> 2
val2 = (byte1 & 0x3) << 4
encodedData.extend([
self.lookUpBase64Alphabet[val1],
self.lookUpBase64Alphabet[val2],
self.PAD,
self.PAD
])
elif fewerThan24bits == 2:
byte1 = binaryData[dataIndex]
byte2 = binaryData[dataIndex + 1]
val1 = byte1 >> 2
val2 = ((byte1 & 0x3) << 4) | (byte2 >> 4)
val3 = (byte2 & 0xf) << 2
encodedData.extend([
self.lookUpBase64Alphabet[val1],
self.lookUpBase64Alphabet[val2],
self.lookUpBase64Alphabet[val3],
self.PAD
])
return ''.join(encodedData)
def removeWhiteSpace(self, data: str) -> str:
return ''.join([c for c in data if not self.isWhiteSpace(c)])
def decode(self, encoded: str) -> bytes:
if encoded is None:
return None
encoded = self.removeWhiteSpace(encoded)
if len(encoded) % 4 != 0:
return None
numberQuadruple = len(encoded) // 4
decodedBytes = bytearray()
i = 0
for _ in range(numberQuadruple):
c1 = encoded[i]
c2 = encoded[i + 1]
c3 = encoded[i + 2]
c4 = encoded[i + 3]
i += 4
if not (self.isData(c1) and self.isData(c2)):
return None
b1 = self.base64Alphabet[ord(c1)]
b2 = self.base64Alphabet[ord(c2)]
b3 = self.base64Alphabet[ord(c3)] if c3 != self.PAD else 0
b4 = self.base64Alphabet[ord(c4)] if c4 != self.PAD else 0
byte1 = (b1 << 2) | (b2 >> 4)
decodedBytes.append(byte1)
if c3 != self.PAD:
byte2 = ((b2 & 0xf) << 4) | (b3 >> 2)
decodedBytes.append(byte2)
if c4 != self.PAD:
byte3 = ((b3 & 0x3) << 6) | b4
decodedBytes.append(byte3)
return bytes(decodedBytes)
class Base64Utils:
@staticmethod
def encode(data: bytes) -> str:
return Base64().encode(data).decode("utf-8")
@staticmethod
def decode(data: str) -> bytes:
return Base64().decode(data.encode("utf-8"))

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from typing import Dict, Optional
class ParamEntity:
def __init__(self, method: str, status: str, format: str, query_map: Optional[Dict[str, str]] = None):
self.method = method
self.status = status
self.format = format
self.query_map = query_map or {}
def get_method(self) -> str:
return self.method
def set_method(self, method: str):
self.method = method
def get_status(self) -> str:
return self.status
def set_status(self, status: str):
self.status = status
def get_format(self) -> str:
return self.format
def set_format(self, format: str):
self.format = format
def get_query_map(self) -> Dict[str, str]:
return self.query_map
def set_query_map(self, query_map: Dict[str, str]):
self.query_map = query_map

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weishijiajie/rsa_util.py Normal file
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from weishijiajie.base64_custom import Base64
import urllib.parse
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5
from Crypto.Signature import pkcs1_15
from Crypto.Hash import MD5
from Crypto import Random
import collections
from typing import Dict
from base64_custom import Base64Utils
class RSAUtil:
@staticmethod
def sign(public_map: Dict[str, object], private_key: str) -> str:
keys = sorted(k for k in public_map if k.lower() != "sign")
values = [f"{k}={public_map[k]}" for k in keys]
public_req_str = "&".join(values)
key_bytes = Base64Utils.decode(private_key)
private_key_obj = RSA.import_key(key_bytes)
signer = pkcs1_15.new(private_key_obj)
digest = MD5.new(public_req_str.encode())
signature = signer.sign(digest)
return Base64Utils.encode(signature)
@staticmethod
def verify(public_map: Dict[str, object], public_key: str) -> bool:
keys = sorted(k for k in public_map if k.lower() != "sign")
values = [f"{k}={public_map[k]}" for k in keys]
public_req_str = "&".join(values)
sign = urllib.parse.unquote(public_map["sign"])
key_bytes = Base64Utils.decode(public_key)
public_key_obj = RSA.import_key(key_bytes)
verifier = pkcs1_15.new(public_key_obj)
digest = MD5.new(public_req_str.encode())
try:
verifier.verify(digest, Base64Utils.decode(sign))
return True
except (ValueError, TypeError):
return False
@staticmethod
def decrypt_by_public_key(encrypted: str, public_key: str) -> str:
encrypted_data = Base64Utils.decode(encrypted)
key_bytes = Base64Utils.decode(public_key)
public_key_obj = RSA.import_key(key_bytes)
cipher = PKCS1_v1_5.new(public_key_obj)
sentinel = Random.new().read(15)
decrypted_data = cipher.decrypt(encrypted_data, sentinel)
return decrypted_data.decode()
@staticmethod
def encrypt_by_private_key(source: str, private_key: str) -> str:
data = source.encode()
key_bytes = Base64Utils.decode(private_key)
private_key_obj = RSA.import_key(key_bytes)
cipher = PKCS1_v1_5.new(private_key_obj)
encrypted_data = cipher.encrypt(data)
return Base64Utils.encode(encrypted_data)

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import uuid
from urllib.parse import urlencode, quote, urlparse, parse_qs
from weishijiajie.rsa_util import RSAUtil # 假设你之前已转换好的
from weishijiajie.param_entity import ParamEntity # 假设你之前已转换好的
class SignUtilsMOP:
@staticmethod
def do_sign(servlet_path: str, private_key: str, param_entity: ParamEntity) -> str:
if not servlet_path.strip():
raise Exception("url path is empty!")
if not private_key.strip():
raise Exception("privateKey is empty!")
public_map = {
"method": param_entity.method,
"status": param_entity.status,
"format": param_entity.format,
"flowdId": str(uuid.uuid4()).replace("-", "")
}
if param_entity.query_map:
public_map.update(param_entity.query_map)
try:
sign = RSAUtil.sign(public_map, private_key)
public_map["sign"] = quote(sign, encoding="utf-8")
query_string = "&".join(f"{k}={v}" for k, v in public_map.items())
return f"{servlet_path}?{query_string}"
except Exception as e:
print("sign failed!")
raise e
@staticmethod
def verify(sign_url: str, public_key: str) -> bool:
if "?" not in sign_url:
return False
param_str = sign_url.split("?", 1)[1]
param_map = {}
for pair in param_str.split("&"):
if pair.strip():
k, v = pair.split("=", 1)
param_map[k] = v
try:
return RSAUtil.verify(param_map, public_key)
except Exception:
return False