from django.core.exceptions import ValidationError
from django.forms import URLField
from django.test import SimpleTestCase

from . import FormFieldAssertionsMixin


class URLFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
    def test_urlfield_1(self):
        f = URLField()
        self.assertWidgetRendersTo(f, '<input type="url" name="f" id="id_f" required>')
        with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
            f.clean("")
        with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
            f.clean(None)
        self.assertEqual("http://localhost", f.clean("http://localhost"))
        self.assertEqual("http://example.com", f.clean("http://example.com"))
        self.assertEqual("http://example.com.", f.clean("http://example.com."))
        self.assertEqual("http://www.example.com", f.clean("http://www.example.com"))
        self.assertEqual(
            "http://www.example.com:8000/test",
            f.clean("http://www.example.com:8000/test"),
        )
        self.assertEqual(
            "http://valid-with-hyphens.com", f.clean("valid-with-hyphens.com")
        )
        self.assertEqual("http://subdomain.domain.com", f.clean("subdomain.domain.com"))
        self.assertEqual("http://200.8.9.10", f.clean("http://200.8.9.10"))
        self.assertEqual(
            "http://200.8.9.10:8000/test", f.clean("http://200.8.9.10:8000/test")
        )
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("foo")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://example")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://example.")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("com.")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean(".")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://.com")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://invalid-.com")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://-invalid.com")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://inv-.alid-.com")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://inv-.-alid.com")
        self.assertEqual(
            "http://valid-----hyphens.com", f.clean("http://valid-----hyphens.com")
        )
        self.assertEqual(
            "http://some.idn.xyz\xe4\xf6\xfc\xdfabc.domain.com:123/blah",
            f.clean("http://some.idn.xyzäöüßabc.domain.com:123/blah"),
        )
        self.assertEqual(
            "http://www.example.com/s/http://code.djangoproject.com/ticket/13804",
            f.clean("www.example.com/s/http://code.djangoproject.com/ticket/13804"),
        )
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("[a")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://[a")

    def test_url_regex_ticket11198(self):
        f = URLField()
        # hangs "forever" if catastrophic backtracking in ticket:#11198 not fixed
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://%s" % ("X" * 200,))

        # a second test, to make sure the problem is really addressed, even on
        # domains that don't fail the domain label length check in the regex
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://%s" % ("X" * 60,))

    def test_urlfield_2(self):
        f = URLField(required=False)
        self.assertEqual("", f.clean(""))
        self.assertEqual("", f.clean(None))
        self.assertEqual("http://example.com", f.clean("http://example.com"))
        self.assertEqual("http://www.example.com", f.clean("http://www.example.com"))
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("foo")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://example")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://example.")
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean("http://.com")

    def test_urlfield_5(self):
        f = URLField(min_length=15, max_length=20)
        self.assertWidgetRendersTo(
            f,
            '<input id="id_f" type="url" name="f" maxlength="20" minlength="15" '
            "required>",
        )
        with self.assertRaisesMessage(
            ValidationError,
            "'Ensure this value has at least 15 characters (it has 12).'",
        ):
            f.clean("http://f.com")
        self.assertEqual("http://example.com", f.clean("http://example.com"))
        with self.assertRaisesMessage(
            ValidationError,
            "'Ensure this value has at most 20 characters (it has 37).'",
        ):
            f.clean("http://abcdefghijklmnopqrstuvwxyz.com")

    def test_urlfield_6(self):
        f = URLField(required=False)
        self.assertEqual("http://example.com", f.clean("example.com"))
        self.assertEqual("", f.clean(""))
        self.assertEqual("https://example.com", f.clean("https://example.com"))

    def test_urlfield_7(self):
        f = URLField()
        self.assertEqual("http://example.com", f.clean("http://example.com"))
        self.assertEqual("http://example.com/test", f.clean("http://example.com/test"))
        self.assertEqual(
            "http://example.com?some_param=some_value",
            f.clean("http://example.com?some_param=some_value"),
        )

    def test_urlfield_9(self):
        f = URLField()
        urls = (
            "http://עברית.idn.icann.org/",
            "http://sãopaulo.com/",
            "http://sãopaulo.com.br/",
            "http://пример.испытание/",
            "http://مثال.إختبار/",
            "http://例子.测试/",
            "http://例子.測試/",
            "http://उदाहरण.परीक्षा/",
            "http://例え.テスト/",
            "http://مثال.آزمایشی/",
            "http://실례.테스트/",
            "http://العربية.idn.icann.org/",
        )
        for url in urls:
            with self.subTest(url=url):
                # Valid IDN
                self.assertEqual(url, f.clean(url))

    def test_urlfield_10(self):
        """URLField correctly validates IPv6 (#18779)."""
        f = URLField()
        urls = (
            "http://[12:34::3a53]/",
            "http://[a34:9238::]:8080/",
        )
        for url in urls:
            with self.subTest(url=url):
                self.assertEqual(url, f.clean(url))

    def test_urlfield_not_string(self):
        f = URLField(required=False)
        with self.assertRaisesMessage(ValidationError, "'Enter a valid URL.'"):
            f.clean(23)

    def test_urlfield_normalization(self):
        f = URLField()
        self.assertEqual(f.clean("http://example.com/     "), "http://example.com/")

    def test_urlfield_strip_on_none_value(self):
        f = URLField(required=False, empty_value=None)
        self.assertIsNone(f.clean(""))
        self.assertIsNone(f.clean(None))

    def test_urlfield_unable_to_set_strip_kwarg(self):
        msg = "__init__() got multiple values for keyword argument 'strip'"
        with self.assertRaisesMessage(TypeError, msg):
            URLField(strip=False)