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|
from typing import Optional
import pytest
from dirty_equals import IsDict
from fastapi import Depends, FastAPI, Security
from fastapi.security import OAuth2, OAuth2PasswordRequestFormStrict
from fastapi.testclient import TestClient
from pydantic import BaseModel
app = FastAPI()
reusable_oauth2 = OAuth2(
flows={
"password": {
"tokenUrl": "token",
"scopes": {"read:users": "Read the users", "write:users": "Create users"},
}
},
description="OAuth2 security scheme",
auto_error=False,
)
class User(BaseModel):
username: str
def get_current_user(oauth_header: Optional[str] = Security(reusable_oauth2)):
if oauth_header is None:
return None
user = User(username=oauth_header)
return user
@app.post("/login")
def login(form_data: OAuth2PasswordRequestFormStrict = Depends()):
return form_data
@app.get("/users/me")
def read_users_me(current_user: Optional[User] = Depends(get_current_user)):
if current_user is None:
return {"msg": "Create an account first"}
return current_user
client = TestClient(app)
def test_security_oauth2():
response = client.get("/users/me", headers={"Authorization": "Bearer footokenbar"})
assert response.status_code == 200, response.text
assert response.json() == {"username": "Bearer footokenbar"}
def test_security_oauth2_password_other_header():
response = client.get("/users/me", headers={"Authorization": "Other footokenbar"})
assert response.status_code == 200, response.text
assert response.json() == {"username": "Other footokenbar"}
def test_security_oauth2_password_bearer_no_header():
response = client.get("/users/me")
assert response.status_code == 200, response.text
assert response.json() == {"msg": "Create an account first"}
def test_strict_login_None():
response = client.post("/login", data=None)
assert response.status_code == 422
assert response.json() == IsDict(
{
"detail": [
{
"type": "missing",
"loc": ["body", "grant_type"],
"msg": "Field required",
"input": None,
},
{
"type": "missing",
"loc": ["body", "username"],
"msg": "Field required",
"input": None,
},
{
"type": "missing",
"loc": ["body", "password"],
"msg": "Field required",
"input": None,
},
]
}
) | IsDict(
# TODO: remove when deprecating Pydantic v1
{
"detail": [
{
"loc": ["body", "grant_type"],
"msg": "field required",
"type": "value_error.missing",
},
{
"loc": ["body", "username"],
"msg": "field required",
"type": "value_error.missing",
},
{
"loc": ["body", "password"],
"msg": "field required",
"type": "value_error.missing",
},
]
}
)
def test_strict_login_no_grant_type():
response = client.post("/login", data={"username": "johndoe", "password": "secret"})
assert response.status_code == 422
assert response.json() == IsDict(
{
"detail": [
{
"type": "missing",
"loc": ["body", "grant_type"],
"msg": "Field required",
"input": None,
}
]
}
) | IsDict(
# TODO: remove when deprecating Pydantic v1
{
"detail": [
{
"loc": ["body", "grant_type"],
"msg": "field required",
"type": "value_error.missing",
}
]
}
)
@pytest.mark.parametrize(
argnames=["grant_type"],
argvalues=[
pytest.param("incorrect", id="incorrect value"),
pytest.param("passwordblah", id="password with suffix"),
pytest.param("blahpassword", id="password with prefix"),
],
)
def test_strict_login_incorrect_grant_type(grant_type: str):
response = client.post(
"/login",
data={"username": "johndoe", "password": "secret", "grant_type": grant_type},
)
assert response.status_code == 422
assert response.json() == IsDict(
{
"detail": [
{
"type": "string_pattern_mismatch",
"loc": ["body", "grant_type"],
"msg": "String should match pattern '^password$'",
"input": grant_type,
"ctx": {"pattern": "^password$"},
}
]
}
) | IsDict(
# TODO: remove when deprecating Pydantic v1
{
"detail": [
{
"loc": ["body", "grant_type"],
"msg": 'string does not match regex "^password$"',
"type": "value_error.str.regex",
"ctx": {"pattern": "^password$"},
}
]
}
)
def test_strict_login_correct_correct_grant_type():
response = client.post(
"/login",
data={"username": "johndoe", "password": "secret", "grant_type": "password"},
)
assert response.status_code == 200, response.text
assert response.json() == {
"grant_type": "password",
"username": "johndoe",
"password": "secret",
"scopes": [],
"client_id": None,
"client_secret": None,
}
def test_openapi_schema():
response = client.get("/openapi.json")
assert response.status_code == 200, response.text
assert response.json() == {
"openapi": "3.1.0",
"info": {"title": "FastAPI", "version": "0.1.0"},
"paths": {
"/login": {
"post": {
"responses": {
"200": {
"description": "Successful Response",
"content": {"application/json": {"schema": {}}},
},
"422": {
"description": "Validation Error",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/HTTPValidationError"
}
}
},
},
},
"summary": "Login",
"operationId": "login_login_post",
"requestBody": {
"content": {
"application/x-www-form-urlencoded": {
"schema": {
"$ref": "#/components/schemas/Body_login_login_post"
}
}
},
"required": True,
},
}
},
"/users/me": {
"get": {
"responses": {
"200": {
"description": "Successful Response",
"content": {"application/json": {"schema": {}}},
}
},
"summary": "Read Users Me",
"operationId": "read_users_me_users_me_get",
"security": [{"OAuth2": []}],
}
},
},
"components": {
"schemas": {
"Body_login_login_post": {
"title": "Body_login_login_post",
"required": ["grant_type", "username", "password"],
"type": "object",
"properties": {
"grant_type": {
"title": "Grant Type",
"pattern": "^password$",
"type": "string",
},
"username": {"title": "Username", "type": "string"},
"password": {"title": "Password", "type": "string"},
"scope": {"title": "Scope", "type": "string", "default": ""},
"client_id": IsDict(
{
"title": "Client Id",
"anyOf": [{"type": "string"}, {"type": "null"}],
}
)
| IsDict(
# TODO: remove when deprecating Pydantic v1
{"title": "Client Id", "type": "string"}
),
"client_secret": IsDict(
{
"title": "Client Secret",
"anyOf": [{"type": "string"}, {"type": "null"}],
}
)
| IsDict(
# TODO: remove when deprecating Pydantic v1
{"title": "Client Secret", "type": "string"}
),
},
},
"ValidationError": {
"title": "ValidationError",
"required": ["loc", "msg", "type"],
"type": "object",
"properties": {
"loc": {
"title": "Location",
"type": "array",
"items": {
"anyOf": [{"type": "string"}, {"type": "integer"}]
},
},
"msg": {"title": "Message", "type": "string"},
"type": {"title": "Error Type", "type": "string"},
},
},
"HTTPValidationError": {
"title": "HTTPValidationError",
"type": "object",
"properties": {
"detail": {
"title": "Detail",
"type": "array",
"items": {"$ref": "#/components/schemas/ValidationError"},
}
},
},
},
"securitySchemes": {
"OAuth2": {
"type": "oauth2",
"flows": {
"password": {
"scopes": {
"read:users": "Read the users",
"write:users": "Create users",
},
"tokenUrl": "token",
}
},
"description": "OAuth2 security scheme",
}
},
},
}
|
