86 lines
2.9 KiB
Python
86 lines
2.9 KiB
Python
"""
|
|
Minimal Authentication package for Azure.
|
|
|
|
Uses client credentials - a secret or a certificate.
|
|
"""
|
|
|
|
import os, requests
|
|
import re
|
|
import jwt, uuid, time
|
|
from cryptography.hazmat.primitives import serialization
|
|
from cryptography import x509
|
|
import hashlib
|
|
import base64
|
|
|
|
def secret_credentials_auth(
|
|
scope: str = "https://app.vssps.visualstudio.com/.default",
|
|
tenant_id: str = os.environ.get("AZURE_TENANT_ID", ""),
|
|
client_id: str = os.environ.get("AZURE_CLIENT_ID", ""),
|
|
client_secret: str = os.environ.get("AZURE_CLIENT_SECRET")
|
|
) -> str:
|
|
"""
|
|
Authenticate using client credentials. Pass credentials via environment variables,
|
|
or directly as function parameters.
|
|
"""
|
|
token_url = f"https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/token"
|
|
r = requests.get(token_url, data={
|
|
"grant_type": "client_credentials",
|
|
"client_id": client_id,
|
|
"client_secret": client_secret,
|
|
"scope": scope
|
|
})
|
|
r.raise_for_status()
|
|
return r.json().get("access_token", "")
|
|
|
|
def certificate_credentials_auth(
|
|
scope: str = "https://app.vssps.visualstudio.com/.default",
|
|
tenant_id: str = os.environ.get("AZURE_TENANT_ID", ""),
|
|
client_id: str = os.environ.get("AZURE_CLIENT_ID", ""),
|
|
pem_path: str = os.environ.get("AZURE_CLIENT_CERTIFICATE_PATH", "")
|
|
) -> str:
|
|
"""
|
|
Authenticate using client credentials with a certificate.
|
|
Pass credentials via environment variables, or directly as function parameters.
|
|
"""
|
|
token_url = f"https://login.microsoftonline.com/{tenant_id}/oauth2/v2.0/token"
|
|
|
|
# Wczytaj klucz prywatny (RSA)
|
|
with open(pem_path, "rb") as f:
|
|
pem = f.read()
|
|
key_pem = re.search(b"-----BEGIN (?:RSA )?PRIVATE KEY-----.*?END (?:RSA )?PRIVATE KEY-----", pem, re.S).group(0)
|
|
cert_pem = re.search(b"-----BEGIN CERTIFICATE-----.*?END CERTIFICATE-----", pem, re.S).group(0)
|
|
|
|
private_key = serialization.load_pem_private_key(key_pem, password=None)
|
|
cert = x509.load_pem_x509_certificate(cert_pem)
|
|
|
|
der = cert.public_bytes(serialization.Encoding.DER)
|
|
sha1 = hashlib.sha1(der).digest()
|
|
x5t = base64.urlsafe_b64encode(sha1).rstrip(b"=").decode("ascii")
|
|
|
|
# Stwórz client_assertion JWT
|
|
now = int(time.time())
|
|
claims = {
|
|
"iss": client_id,
|
|
"sub": client_id,
|
|
"aud": token_url,
|
|
"jti": str(uuid.uuid4()),
|
|
"iat": now,
|
|
"exp": now + 600,
|
|
}
|
|
|
|
headers = {"x5t": x5t, "kid": x5t}
|
|
|
|
assertion = jwt.encode(claims, private_key, algorithm="RS256", headers=headers)
|
|
|
|
data = {
|
|
"grant_type": "client_credentials",
|
|
"client_id": client_id,
|
|
"scope": scope,
|
|
"client_assertion_type": "urn:ietf:params:oauth:client-assertion-type:jwt-bearer",
|
|
"client_assertion": assertion,
|
|
}
|
|
|
|
r = requests.post(token_url, data=data)
|
|
r.raise_for_status()
|
|
return r.json().get("access_token")
|