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import hashlib |
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import json |
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import posixpath |
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import secrets |
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import webbrowser |
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from base64 import urlsafe_b64encode |
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from random import randrange |
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from urllib.parse import urlparse, parse_qs |
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import requests |
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from .auth_code_receiver import AuthCodeReceiver |
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def get_token( |
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issuer_uri, |
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client_id, |
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redirect_uri=None, |
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scopes=None, |
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login_hint=None, |
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domain_hint=None, |
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browser_name=None |
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): |
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state = str(randrange(1000000000)) # "InfoOfWhereTheUserWantedToGo" |
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nonce = str(randrange(1000000000)) |
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# Your first step is to generate_key_pair a code verifier and challenge: |
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# Code verifier: Random URL-safe string with a minimum length of 43 characters. |
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# Code challenge: Base64 URL-encoded SHA-256 hash of the code verifier. |
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code_verifier = secrets.token_urlsafe(43) |
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m = hashlib.sha256() |
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m.update(code_verifier.encode()) |
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code_challenge = urlsafe_b64encode(m.digest()).decode().rstrip("=") |
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if redirect_uri is None: |
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server = AuthCodeReceiver(port=0) |
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port = server.get_port() |
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redirect_uri = f"http://localhost:{port}/" |
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else: |
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server = AuthCodeReceiver(port=int(redirect_uri.split(":")[-1])) |
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res = requests.get( |
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url=posixpath.join(issuer_uri, "oauth2/v2.0/authorize"), |
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params={ |
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"client_id": client_id, |
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"response_type": "code", |
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"scope": " ".join(scopes or []), |
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"redirect_uri": redirect_uri, |
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"state": state, |
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"nonce": nonce, # Optional |
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"code_challenge_method": "S256", |
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"code_challenge": code_challenge, |
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"client_info": "1", |
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"prompt": "select_account", |
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"login_hint": login_hint or "", |
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"domain_hint": domain_hint or "" |
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} |
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) |
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assert res.status_code == 200 |
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if browser_name: |
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webbrowser.get(browser_name).open(res.request.url) |
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else: |
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webbrowser.open(res.request.url) |
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q = server.get_auth_response(timeout=1000, state=state) |
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return _exchange_code( |
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client_id=client_id, |
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issuer_uri=issuer_uri, |
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code_verifier=code_verifier, |
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redirect_url=redirect_uri, |
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code=q["code"] |
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) |
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def get_token_manual( |
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issuer_uri, |
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client_id, |
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redirect_uri=None, |
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scopes=None, |
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login_hint=None, |
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domain_hint=None, |
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browser_name=None |
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85
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): |
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86
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state = str(randrange(1000000000)) # "InfoOfWhereTheUserWantedToGo" |
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nonce = str(randrange(1000000000)) |
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89
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# Your first step is to generate_key_pair a code verifier and challenge: |
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90
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# Code verifier: Random URL-safe string with a minimum length of 43 characters. |
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91
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# Code challenge: Base64 URL-encoded SHA-256 hash of the code verifier. |
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code_verifier = secrets.token_urlsafe(43) |
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m = hashlib.sha256() |
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m.update(code_verifier.encode()) |
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code_challenge = urlsafe_b64encode(m.digest()).decode().rstrip("=") |
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print({ |
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"code_verifier": code_verifier, |
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"code_challenge": code_challenge |
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}) |
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res = requests.get( |
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url=posixpath.join(issuer_uri, "oauth2/v2.0/authorize"), |
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params={ |
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"client_id": client_id, |
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"response_type": "code", |
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"scope": " ".join(scopes), |
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"redirect_uri": redirect_uri, |
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"state": state, |
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"nonce": nonce, # Optional |
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"code_challenge_method": "S256", |
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"code_challenge": code_challenge, |
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# "client_info": "1", |
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# "prompt": "select_account", |
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# "login_hint": login_hint or "", |
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# "domain_hint": domain_hint or "" |
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} |
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) |
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assert res.status_code == 200 |
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if browser_name: |
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webbrowser.get(browser_name).open(res.request.url) |
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else: |
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webbrowser.open(res.request.url) |
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126
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response = input('TYPE YOUR RETURN URI:') |
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o = urlparse(response.rstrip()) |
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q = parse_qs(o.query) |
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return _exchange_code( |
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client_id=client_id, |
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issuer_uri=issuer_uri, |
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code_verifier=code_verifier, |
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redirect_url=redirect_uri, |
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code=q["code"] |
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) |
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138
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139
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def token_refresh( |
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refresh_token, |
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issuer_uri, |
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client_id, |
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scopes=None, |
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144
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origin=None |
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145
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): |
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data = { |
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"grant_type": "refresh_token", |
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"client_id": client_id, |
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"refresh_token": refresh_token |
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} |
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if scopes: |
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data["scope"] = " ".join(scopes or []) |
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153
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154
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token = requests.post( |
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url=posixpath.join(issuer_uri, "oauth2/v2.0/token"), |
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data=data, |
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headers={ |
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'origin': origin |
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159
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}, |
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160
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) |
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161
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162
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if token.status_code == 200: |
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return token.json() |
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raise Exception(token.json()) |
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166
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167
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168
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def _exchange_code(issuer_uri, client_id, code_verifier, redirect_url, code): |
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169
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token = requests.post( |
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170
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url=posixpath.join(issuer_uri, "oauth2/v2.0/token"), |
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data={ |
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"grant_type": "authorization_code", |
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"client_id": client_id, |
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"code_verifier": code_verifier, |
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"redirect_uri": redirect_url, |
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"code": code |
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}, |
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headers={ |
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# 'origin': redirect_url # This might be need for web apps but not for desktop apps |
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}, |
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181
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) |
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182
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if token.status_code == 200: |
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183
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return token.json() |
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184
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185
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assert token.status_code == 200, token.text |
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186
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SAT-CFDI /
python-satdigitalinvoice
