from unittest import mock

from django.template.defaultfilters import urlize
from django.test import SimpleTestCase
from django.test.utils import override_settings
from django.utils.functional import lazy
from django.utils.html import Urlizer
from django.utils.safestring import mark_safe

from ..utils import setup


class UrlizeTests(SimpleTestCase):
    @setup(
        {
            "urlize01": (
                "{% autoescape off %}{{ a|urlize }} {{ b|urlize }}{% endautoescape %}"
            )
        }
    )
    def test_urlize01(self):
        output = self.engine.render_to_string(
            "urlize01",
            {
                "a": "http://example.com/?x=&y=",
                "b": mark_safe("http://example.com?x=&amp;y=&lt;2&gt;"),
            },
        )
        self.assertEqual(
            output,
            '<a href="http://example.com/?x=&amp;y=" rel="nofollow">'
            "http://example.com/?x=&y=</a> "
            '<a href="http://example.com?x=&amp;y=%3C2%3E" rel="nofollow">'
            "http://example.com?x=&amp;y=&lt;2&gt;</a>",
        )

    @setup({"urlize02": "{{ a|urlize }} {{ b|urlize }}"})
    def test_urlize02(self):
        output = self.engine.render_to_string(
            "urlize02",
            {
                "a": "http://example.com/?x=&y=",
                "b": mark_safe("http://example.com?x=&amp;y="),
            },
        )
        self.assertEqual(
            output,
            '<a href="http://example.com/?x=&amp;y=" rel="nofollow">'
            "http://example.com/?x=&amp;y=</a> "
            '<a href="http://example.com?x=&amp;y=" rel="nofollow">'
            "http://example.com?x=&amp;y=</a>",
        )

    @setup({"urlize03": "{% autoescape off %}{{ a|urlize }}{% endautoescape %}"})
    def test_urlize03(self):
        output = self.engine.render_to_string("urlize03", {"a": mark_safe("a &amp; b")})
        self.assertEqual(output, "a &amp; b")

    @setup({"urlize04": "{{ a|urlize }}"})
    def test_urlize04(self):
        output = self.engine.render_to_string("urlize04", {"a": mark_safe("a &amp; b")})
        self.assertEqual(output, "a &amp; b")

    # This will lead to a nonsense result, but at least it won't be
    # exploitable for XSS purposes when auto-escaping is on.
    @setup({"urlize05": "{% autoescape off %}{{ a|urlize }}{% endautoescape %}"})
    def test_urlize05(self):
        output = self.engine.render_to_string(
            "urlize05", {"a": "<script>alert('foo')</script>"}
        )
        self.assertEqual(output, "<script>alert('foo')</script>")

    @setup({"urlize06": "{{ a|urlize }}"})
    def test_urlize06(self):
        output = self.engine.render_to_string(
            "urlize06", {"a": "<script>alert('foo')</script>"}
        )
        self.assertEqual(output, "&lt;script&gt;alert(&#x27;foo&#x27;)&lt;/script&gt;")

    # mailto: testing for urlize
    @setup({"urlize07": "{{ a|urlize }}"})
    def test_urlize07(self):
        output = self.engine.render_to_string(
            "urlize07", {"a": "Email me at me@example.com"}
        )
        self.assertEqual(
            output,
            'Email me at <a href="mailto:me@example.com">me@example.com</a>',
        )

    @setup({"urlize08": "{{ a|urlize }}"})
    def test_urlize08(self):
        output = self.engine.render_to_string(
            "urlize08", {"a": "Email me at <me@example.com>"}
        )
        self.assertEqual(
            output,
            'Email me at &lt;<a href="mailto:me@example.com">me@example.com</a>&gt;',
        )

    @setup({"urlize09": "{% autoescape off %}{{ a|urlize }}{% endautoescape %}"})
    def test_urlize09(self):
        output = self.engine.render_to_string(
            "urlize09", {"a": "http://example.com/?x=&amp;y=&lt;2&gt;"}
        )
        self.assertEqual(
            output,
            '<a href="http://example.com/?x=&amp;y=%3C2%3E" rel="nofollow">'
            "http://example.com/?x=&amp;y=&lt;2&gt;</a>",
        )


@override_settings(URLIZE_ASSUME_HTTPS=True)
class FunctionTests(SimpleTestCase):
    def test_urls(self):
        self.assertEqual(
            urlize("http://google.com"),
            '<a href="http://google.com" rel="nofollow">http://google.com</a>',
        )
        self.assertEqual(
            urlize("http://google.com/"),
            '<a href="http://google.com/" rel="nofollow">http://google.com/</a>',
        )
        self.assertEqual(
            urlize("www.google.com"),
            '<a href="https://www.google.com" rel="nofollow">www.google.com</a>',
        )
        self.assertEqual(
            urlize("djangoproject.org"),
            '<a href="https://djangoproject.org" rel="nofollow">djangoproject.org</a>',
        )
        self.assertEqual(
            urlize("djangoproject.org/"),
            '<a href="https://djangoproject.org/" rel="nofollow">'
            "djangoproject.org/</a>",
        )

    def test_url_split_chars(self):
        # Quotes (single and double) and angle brackets shouldn't be considered
        # part of URLs.
        self.assertEqual(
            urlize('www.server.com"abc'),
            '<a href="https://www.server.com" rel="nofollow">www.server.com</a>&quot;'
            "abc",
        )
        self.assertEqual(
            urlize("www.server.com'abc"),
            '<a href="https://www.server.com" rel="nofollow">www.server.com</a>&#x27;'
            "abc",
        )
        self.assertEqual(
            urlize("www.server.com<abc"),
            '<a href="https://www.server.com" rel="nofollow">www.server.com</a>&lt;abc',
        )
        self.assertEqual(
            urlize("www.server.com>abc"),
            '<a href="https://www.server.com" rel="nofollow">www.server.com</a>&gt;abc',
        )

    def test_email(self):
        self.assertEqual(
            urlize("info@djangoproject.org"),
            '<a href="mailto:info@djangoproject.org">info@djangoproject.org</a>',
        )

    def test_word_with_dot(self):
        self.assertEqual(urlize("some.organization"), "some.organization")

    def test_https(self):
        self.assertEqual(
            urlize("https://google.com"),
            '<a href="https://google.com" rel="nofollow">https://google.com</a>',
        )

    def test_quoting(self):
        """
        #9655 - Check urlize doesn't overquote already quoted urls. The
        teststring is the urlquoted version of 'http://hi.baidu.com/重新开始'
        """
        self.assertEqual(
            urlize("http://hi.baidu.com/%E9%87%8D%E6%96%B0%E5%BC%80%E5%A7%8B"),
            '<a href="http://hi.baidu.com/%E9%87%8D%E6%96%B0%E5%BC%80%E5%A7%8B" '
            'rel="nofollow">http://hi.baidu.com/%E9%87%8D%E6%96%B0%E5%BC%80%E5%A7%8B'
            "</a>",
        )

    def test_urlencoded(self):
        self.assertEqual(
            urlize("www.mystore.com/30%OffCoupons!"),
            '<a href="https://www.mystore.com/30%25OffCoupons" rel="nofollow">'
            "www.mystore.com/30%OffCoupons</a>!",
        )
        self.assertEqual(
            urlize("https://en.wikipedia.org/wiki/Caf%C3%A9"),
            '<a href="https://en.wikipedia.org/wiki/Caf%C3%A9" rel="nofollow">'
            "https://en.wikipedia.org/wiki/Caf%C3%A9</a>",
        )

    def test_unicode(self):
        self.assertEqual(
            urlize("https://en.wikipedia.org/wiki/Café"),
            '<a href="https://en.wikipedia.org/wiki/Caf%C3%A9" rel="nofollow">'
            "https://en.wikipedia.org/wiki/Café</a>",
        )

    def test_parenthesis(self):
        """
        #11911 - Check urlize keeps balanced parentheses
        """
        self.assertEqual(
            urlize("https://en.wikipedia.org/wiki/Django_(web_framework)"),
            '<a href="https://en.wikipedia.org/wiki/Django_(web_framework)" '
            'rel="nofollow">https://en.wikipedia.org/wiki/Django_(web_framework)</a>',
        )
        self.assertEqual(
            urlize("(see https://en.wikipedia.org/wiki/Django_(web_framework))"),
            '(see <a href="https://en.wikipedia.org/wiki/Django_(web_framework)" '
            'rel="nofollow">https://en.wikipedia.org/wiki/Django_(web_framework)</a>)',
        )

    def test_nofollow(self):
        """
        #12183 - Check urlize adds nofollow properly - see #12183
        """
        self.assertEqual(
            urlize("foo@bar.com or www.bar.com"),
            '<a href="mailto:foo@bar.com">foo@bar.com</a> or '
            '<a href="https://www.bar.com" rel="nofollow">www.bar.com</a>',
        )

    def test_idn(self):
        """
        #13704 - Check urlize handles IDN correctly
        """
        # The "✶" below is \N{SIX POINTED BLACK STAR}, not "*" \N{ASTERISK}.
        self.assertEqual(
            urlize("http://c✶.ws"),
            '<a href="http://c%E2%9C%B6.ws" rel="nofollow">http://c✶.ws</a>',
        )
        self.assertEqual(
            urlize("www.c✶.ws"),
            '<a href="https://www.c%E2%9C%B6.ws" rel="nofollow">www.c✶.ws</a>',
        )
        self.assertEqual(
            urlize("c✶.org"),
            '<a href="https://c%E2%9C%B6.org" rel="nofollow">c✶.org</a>',
        )
        self.assertEqual(
            urlize("info@c✶.org"),
            '<a href="mailto:info@c%E2%9C%B6.org">info@c✶.org</a>',
        )

        # Pre-encoded IDNA is urlized but not re-encoded.
        self.assertEqual(
            urlize("www.xn--iny-zx5a.com/idna2003"),
            '<a href="https://www.xn--iny-zx5a.com/idna2003"'
            ' rel="nofollow">www.xn--iny-zx5a.com/idna2003</a>',
        )
        self.assertEqual(
            urlize("www.xn--fa-hia.com/idna2008"),
            '<a href="https://www.xn--fa-hia.com/idna2008"'
            ' rel="nofollow">www.xn--fa-hia.com/idna2008</a>',
        )

    def test_malformed(self):
        """
        #16395 - Check urlize doesn't highlight malformed URIs
        """
        self.assertEqual(urlize("http:///www.google.com"), "http:///www.google.com")
        self.assertEqual(urlize("http://.google.com"), "http://.google.com")
        self.assertEqual(urlize("http://@foo.com"), "http://@foo.com")

    def test_tlds(self):
        """
        #16656 - Check urlize accepts more TLDs
        """
        self.assertEqual(
            urlize("usa.gov"), '<a href="https://usa.gov" rel="nofollow">usa.gov</a>'
        )

    def test_invalid_email(self):
        """
        #17592 - Check urlize don't crash on invalid email with dot-starting
        domain
        """
        self.assertEqual(urlize("email@.stream.ru"), "email@.stream.ru")

    def test_uppercase(self):
        """
        #18071 - Check urlize accepts uppercased URL schemes
        """
        self.assertEqual(
            urlize("HTTPS://github.com/"),
            '<a href="https://github.com/" rel="nofollow">HTTPS://github.com/</a>',
        )

    def test_trailing_period(self):
        """
        #18644 - Check urlize trims trailing period when followed by
        parenthesis
        """
        self.assertEqual(
            urlize("(Go to http://www.example.com/foo.)"),
            '(Go to <a href="http://www.example.com/foo" rel="nofollow">'
            "http://www.example.com/foo</a>.)",
        )

    def test_trailing_multiple_punctuation(self):
        self.assertEqual(
            urlize("A test http://testing.com/example.."),
            'A test <a href="http://testing.com/example" rel="nofollow">'
            "http://testing.com/example</a>..",
        )
        self.assertEqual(
            urlize("A test http://testing.com/example!!"),
            'A test <a href="http://testing.com/example" rel="nofollow">'
            "http://testing.com/example</a>!!",
        )
        self.assertEqual(
            urlize("A test http://testing.com/example!!!"),
            'A test <a href="http://testing.com/example" rel="nofollow">'
            "http://testing.com/example</a>!!!",
        )
        self.assertEqual(
            urlize('A test http://testing.com/example.,:;)"!'),
            'A test <a href="http://testing.com/example" rel="nofollow">'
            "http://testing.com/example</a>.,:;)&quot;!",
        )

    def test_trailing_semicolon(self):
        self.assertEqual(
            urlize("http://example.com?x=&amp;", autoescape=False),
            '<a href="http://example.com?x=" rel="nofollow">'
            "http://example.com?x=&amp;</a>",
        )
        self.assertEqual(
            urlize("http://example.com?x=&amp;;", autoescape=False),
            '<a href="http://example.com?x=" rel="nofollow">'
            "http://example.com?x=&amp;</a>;",
        )
        self.assertEqual(
            urlize("http://example.com?x=&amp;;;", autoescape=False),
            '<a href="http://example.com?x=" rel="nofollow">'
            "http://example.com?x=&amp;</a>;;",
        )
        self.assertEqual(
            urlize("http://example.com?x=&amp.;...;", autoescape=False),
            '<a href="http://example.com?x=" rel="nofollow">'
            "http://example.com?x=&amp</a>.;...;",
        )

    def test_brackets(self):
        """
        #19070 - Check urlize handles brackets properly
        """
        self.assertEqual(
            urlize("[see www.example.com]"),
            '[see <a href="https://www.example.com" rel="nofollow">'
            "www.example.com</a>]",
        )
        self.assertEqual(
            urlize("see test[at[example.com"),  # Invalid hostname.
            "see test[at[example.com",
        )
        self.assertEqual(
            urlize("[http://168.192.0.1](http://168.192.0.1)"),
            '[<a href="http://168.192.0.1](http://168.192.0.1)" rel="nofollow">'
            "http://168.192.0.1](http://168.192.0.1)</a>",
        )

    def test_wrapping_characters(self):
        wrapping_chars = (
            ("()", ("(", ")")),
            ("<>", ("&lt;", "&gt;")),
            ("[]", ("[", "]")),
            ('""', ("&quot;", "&quot;")),
            ("''", ("&#x27;", "&#x27;")),
        )
        for wrapping_in, (start_out, end_out) in wrapping_chars:
            with self.subTest(wrapping_in=wrapping_in):
                start_in, end_in = wrapping_in
                self.assertEqual(
                    urlize(start_in + "https://www.example.org/" + end_in),
                    f'{start_out}<a href="https://www.example.org/" rel="nofollow">'
                    f"https://www.example.org/</a>{end_out}",
                )

    def test_ipv4(self):
        self.assertEqual(
            urlize("http://192.168.0.15/api/9"),
            '<a href="http://192.168.0.15/api/9" rel="nofollow">'
            "http://192.168.0.15/api/9</a>",
        )

    def test_ipv6(self):
        self.assertEqual(
            urlize("http://[2001:db8:cafe::2]/api/9"),
            '<a href="http://[2001:db8:cafe::2]/api/9" rel="nofollow">'
            "http://[2001:db8:cafe::2]/api/9</a>",
        )

    def test_quotation_marks(self):
        """
        #20364 - Check urlize correctly include quotation marks in links
        """
        self.assertEqual(
            urlize('before "hi@example.com" afterward', autoescape=False),
            'before "<a href="mailto:hi@example.com">hi@example.com</a>" afterward',
        )
        self.assertEqual(
            urlize('before hi@example.com" afterward', autoescape=False),
            'before <a href="mailto:hi@example.com">hi@example.com</a>" afterward',
        )
        self.assertEqual(
            urlize('before "hi@example.com afterward', autoescape=False),
            'before "<a href="mailto:hi@example.com">hi@example.com</a> afterward',
        )
        self.assertEqual(
            urlize("before 'hi@example.com' afterward", autoescape=False),
            "before '<a href=\"mailto:hi@example.com\">hi@example.com</a>' afterward",
        )
        self.assertEqual(
            urlize("before hi@example.com' afterward", autoescape=False),
            'before <a href="mailto:hi@example.com">hi@example.com</a>\' afterward',
        )
        self.assertEqual(
            urlize("before 'hi@example.com afterward", autoescape=False),
            'before \'<a href="mailto:hi@example.com">hi@example.com</a> afterward',
        )

    def test_quote_commas(self):
        """
        #20364 - Check urlize copes with commas following URLs in quotes
        """
        self.assertEqual(
            urlize(
                'Email us at "hi@example.com", or phone us at +xx.yy', autoescape=False
            ),
            'Email us at "<a href="mailto:hi@example.com">hi@example.com</a>", or '
            "phone us at +xx.yy",
        )

    def test_exclamation_marks(self):
        """
        #23715 - Check urlize correctly handles exclamation marks after TLDs
        or query string
        """
        self.assertEqual(
            urlize("Go to djangoproject.com! and enjoy."),
            'Go to <a href="https://djangoproject.com" rel="nofollow">djangoproject.com'
            "</a>! and enjoy.",
        )
        self.assertEqual(
            urlize("Search for google.com/?q=! and see."),
            'Search for <a href="https://google.com/?q=" rel="nofollow">google.com/?q='
            "</a>! and see.",
        )
        self.assertEqual(
            urlize("Search for google.com/?q=dj!`? and see."),
            'Search for <a href="https://google.com/?q=dj%21%60%3F" rel="nofollow">'
            "google.com/?q=dj!`?</a> and see.",
        )
        self.assertEqual(
            urlize("Search for google.com/?q=dj!`?! and see."),
            'Search for <a href="https://google.com/?q=dj%21%60%3F" rel="nofollow">'
            "google.com/?q=dj!`?</a>! and see.",
        )

    def test_non_string_input(self):
        self.assertEqual(urlize(123), "123")

    def test_autoescape(self):
        self.assertEqual(
            urlize('foo<a href=" google.com ">bar</a>buz'),
            'foo&lt;a href=&quot; <a href="https://google.com" rel="nofollow">'
            "google.com</a> &quot;&gt;bar&lt;/a&gt;buz",
        )

    def test_autoescape_off(self):
        self.assertEqual(
            urlize('foo<a href=" google.com ">bar</a>buz', autoescape=False),
            'foo<a href=" <a href="https://google.com" rel="nofollow">google.com</a> ">'
            "bar</a>buz",
        )

    def test_lazystring(self):
        prepend_www = lazy(lambda url: "www." + url, str)
        self.assertEqual(
            urlize(prepend_www("google.com")),
            '<a href="https://www.google.com" rel="nofollow">www.google.com</a>',
        )

    @mock.patch.object(Urlizer, "handle_word", return_value="test")
    def test_caching_repeated_words(self, mock_handle_word):
        urlize("test test test test")
        common_handle_word_args = {
            "safe_input": False,
            "trim_url_limit": None,
            "nofollow": True,
            "autoescape": True,
        }
        self.assertEqual(
            mock_handle_word.mock_calls,
            [
                mock.call("test", **common_handle_word_args),
                mock.call(" ", **common_handle_word_args),
            ],
        )

    @mock.patch.object(Urlizer, "handle_word", return_value="test")
    def test_caching_repeated_calls(self, mock_handle_word):
        urlize("test")
        handle_word_test = mock.call(
            "test",
            safe_input=False,
            trim_url_limit=None,
            nofollow=True,
            autoescape=True,
        )
        self.assertEqual(mock_handle_word.mock_calls, [handle_word_test])

        urlize("test")
        self.assertEqual(
            mock_handle_word.mock_calls, [handle_word_test, handle_word_test]
        )
