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import pytest
from flask import json
from markupsafe import Markup
from flask_wtf import FlaskForm
from flask_wtf.recaptcha import RecaptchaField
from flask_wtf.recaptcha.validators import http
from flask_wtf.recaptcha.validators import Recaptcha
class RecaptchaForm(FlaskForm):
class Meta:
csrf = False
recaptcha = RecaptchaField()
@pytest.fixture
def app(app):
app.testing = False
app.config["PROPAGATE_EXCEPTIONS"] = True
app.config["RECAPTCHA_PUBLIC_KEY"] = "public"
app.config["RECAPTCHA_PRIVATE_KEY"] = "private"
return app
@pytest.fixture(autouse=True)
def req_ctx(app):
with app.test_request_context(data={"g-recaptcha-response": "pass"}) as ctx:
yield ctx
def test_config(app, monkeypatch):
f = RecaptchaForm()
monkeypatch.setattr(app, "testing", True)
f.validate()
assert not f.recaptcha.errors
monkeypatch.undo()
monkeypatch.delitem(app.config, "RECAPTCHA_PUBLIC_KEY")
pytest.raises(RuntimeError, f.recaptcha)
monkeypatch.undo()
monkeypatch.delitem(app.config, "RECAPTCHA_PRIVATE_KEY")
pytest.raises(RuntimeError, f.validate)
def test_render_has_js():
f = RecaptchaForm()
render = f.recaptcha()
assert "https://www.google.com/recaptcha/api.js" in render
def test_render_has_custom_js(app):
captcha_script = "https://hcaptcha.com/1/api.js"
app.config["RECAPTCHA_SCRIPT"] = captcha_script
f = RecaptchaForm()
render = f.recaptcha()
assert captcha_script in render
def test_render_custom_html(app):
app.config["RECAPTCHA_HTML"] = "custom"
f = RecaptchaForm()
render = f.recaptcha()
assert render == "custom"
assert isinstance(render, Markup)
def test_render_custom_div_class(app):
div_class = "h-captcha"
app.config["RECAPTCHA_DIV_CLASS"] = div_class
f = RecaptchaForm()
render = f.recaptcha()
assert div_class in render
def test_render_custom_args(app):
app.config["RECAPTCHA_PARAMETERS"] = {"key": "(value)"}
app.config["RECAPTCHA_DATA_ATTRS"] = {"red": "blue"}
f = RecaptchaForm()
render = f.recaptcha()
assert "?key=(value)" in render or "?key=%28value%29" in render
assert 'data-red="blue"' in render
def test_missing_response(app):
with app.test_request_context():
f = RecaptchaForm()
f.validate()
assert f.recaptcha.errors[0] == "The response parameter is missing."
class MockResponse:
def __init__(self, code, error="invalid-input-response", read_bytes=False):
self.code = code
self.data = json.dumps(
{"success": not error, "error-codes": [error] if error else []}
)
self.read_bytes = read_bytes
def read(self):
if self.read_bytes:
return self.data.encode("utf-8")
return self.data
def test_send_invalid_request(monkeypatch):
def mock_urlopen(url, data):
return MockResponse(200)
monkeypatch.setattr(http, "urlopen", mock_urlopen)
f = RecaptchaForm()
f.validate()
assert f.recaptcha.errors[0] == ("The response parameter is invalid or malformed.")
def test_response_from_json(app, monkeypatch):
def mock_urlopen(url, data):
return MockResponse(200)
monkeypatch.setattr(http, "urlopen", mock_urlopen)
with app.test_request_context(
data=json.dumps({"g-recaptcha-response": "pass"}),
content_type="application/json",
):
f = RecaptchaForm()
f.validate()
assert f.recaptcha.errors[0] != "The response parameter is missing."
def test_request_fail(monkeypatch):
def mock_urlopen(url, data):
return MockResponse(400)
monkeypatch.setattr(http, "urlopen", mock_urlopen)
f = RecaptchaForm()
f.validate()
assert f.recaptcha.errors
def test_request_success(monkeypatch):
def mock_urlopen(url, data):
return MockResponse(200, "")
monkeypatch.setattr(http, "urlopen", mock_urlopen)
f = RecaptchaForm()
f.validate()
assert not f.recaptcha.errors
def test_request_custom_verify_server(app, monkeypatch):
verify_server = "https://hcaptcha.com/siteverify"
def mock_urlopen(url, data):
assert url == verify_server
return MockResponse(200, "")
monkeypatch.setattr(http, "urlopen", mock_urlopen)
app.config["RECAPTCHA_VERIFY_SERVER"] = verify_server
f = RecaptchaForm()
f.validate()
assert not f.recaptcha.errors
def test_request_unmatched_error(monkeypatch):
def mock_urlopen(url, data):
return MockResponse(200, "not-an-error", True)
monkeypatch.setattr(http, "urlopen", mock_urlopen)
f = RecaptchaForm()
f.recaptcha.validators = [Recaptcha("custom")]
f.validate()
assert f.recaptcha.errors[0] == "custom"
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