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import unittest import tornado from tornado.escape import ( utf8, xhtml_escape, xhtml_unescape, url_escape, url_unescape, to_unicode, json_decode, json_encode, squeeze, recursive_unicode, ) from tornado.util import unicode_type from typing import List, Tuple, Union, Dict, Any # noqa: F401 linkify_tests = [ # (input, linkify_kwargs, expected_output) ( "hello http://world.com/!", {}, 'hello <a href="http://world.com/">http://world.com/</a>!', ), ( "hello http://world.com/with?param=true&stuff=yes", {}, 'hello <a href="http://world.com/with?param=true&stuff=yes">http://world.com/with?param=true&stuff=yes</a>', # noqa: E501 ), # an opened paren followed by many chars killed Gruber's regex ( "http://url.com/w(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", {}, '<a href="http://url.com/w">http://url.com/w</a>(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa', # noqa: E501 ), # as did too many dots at the end ( "http://url.com/withmany.......................................", {}, '<a href="http://url.com/withmany">http://url.com/withmany</a>.......................................', # noqa: E501 ), ( "http://url.com/withmany((((((((((((((((((((((((((((((((((a)", {}, '<a href="http://url.com/withmany">http://url.com/withmany</a>((((((((((((((((((((((((((((((((((a)', # noqa: E501 ), # some examples from http://daringfireball.net/2009/11/liberal_regex_for_matching_urls # plus a fex extras (such as multiple parentheses). ( "http://foo.com/blah_blah", {}, '<a href="http://foo.com/blah_blah">http://foo.com/blah_blah</a>', ), ( "http://foo.com/blah_blah/", {}, '<a href="http://foo.com/blah_blah/">http://foo.com/blah_blah/</a>', ), ( "(Something like http://foo.com/blah_blah)", {}, '(Something like <a href="http://foo.com/blah_blah">http://foo.com/blah_blah</a>)', ), ( "http://foo.com/blah_blah_(wikipedia)", {}, '<a href="http://foo.com/blah_blah_(wikipedia)">http://foo.com/blah_blah_(wikipedia)</a>', ), ( "http://foo.com/blah_(blah)_(wikipedia)_blah", {}, '<a href="http://foo.com/blah_(blah)_(wikipedia)_blah">http://foo.com/blah_(blah)_(wikipedia)_blah</a>', # noqa: E501 ), ( "(Something like http://foo.com/blah_blah_(wikipedia))", {}, '(Something like <a href="http://foo.com/blah_blah_(wikipedia)">http://foo.com/blah_blah_(wikipedia)</a>)', # noqa: E501 ), ( "http://foo.com/blah_blah.", {}, '<a href="http://foo.com/blah_blah">http://foo.com/blah_blah</a>.', ), ( "http://foo.com/blah_blah/.", {}, '<a href="http://foo.com/blah_blah/">http://foo.com/blah_blah/</a>.', ), ( "<http://foo.com/blah_blah>", {}, '<<a href="http://foo.com/blah_blah">http://foo.com/blah_blah</a>>', ), ( "<http://foo.com/blah_blah/>", {}, '<<a href="http://foo.com/blah_blah/">http://foo.com/blah_blah/</a>>', ), ( "http://foo.com/blah_blah,", {}, '<a href="http://foo.com/blah_blah">http://foo.com/blah_blah</a>,', ), ( "http://www.example.com/wpstyle/?p=364.", {}, '<a href="http://www.example.com/wpstyle/?p=364">http://www.example.com/wpstyle/?p=364</a>.', # noqa: E501 ), ( "rdar://1234", {"permitted_protocols": ["http", "rdar"]}, '<a href="rdar://1234">rdar://1234</a>', ), ( "rdar:/1234", {"permitted_protocols": ["rdar"]}, '<a href="rdar:/1234">rdar:/1234</a>', ), ( "http://userid:password@example.com:8080", {}, '<a href="http://userid:password@example.com:8080">http://userid:password@example.com:8080</a>', # noqa: E501 ), ( "http://userid@example.com", {}, '<a href="http://userid@example.com">http://userid@example.com</a>', ), ( "http://userid@example.com:8080", {}, '<a href="http://userid@example.com:8080">http://userid@example.com:8080</a>', ), ( "http://userid:password@example.com", {}, '<a href="http://userid:password@example.com">http://userid:password@example.com</a>', ), ( "message://%3c330e7f8409726r6a4ba78dkf1fd71420c1bf6ff@mail.gmail.com%3e", {"permitted_protocols": ["http", "message"]}, '<a href="message://%3c330e7f8409726r6a4ba78dkf1fd71420c1bf6ff@mail.gmail.com%3e">' "message://%3c330e7f8409726r6a4ba78dkf1fd71420c1bf6ff@mail.gmail.com%3e</a>", ), ( "http://\u27a1.ws/\u4a39", {}, '<a href="http://\u27a1.ws/\u4a39">http://\u27a1.ws/\u4a39</a>', ), ( "<tag>http://example.com</tag>", {}, '<tag><a href="http://example.com">http://example.com</a></tag>', ), ( "Just a www.example.com link.", {}, 'Just a <a href="http://www.example.com">www.example.com</a> link.', ), ( "Just a www.example.com link.", {"require_protocol": True}, "Just a www.example.com link.", ), ( "A http://reallylong.com/link/that/exceedsthelenglimit.html", {"require_protocol": True, "shorten": True}, 'A <a href="http://reallylong.com/link/that/exceedsthelenglimit.html"' ' title="http://reallylong.com/link/that/exceedsthelenglimit.html">http://reallylong.com/link...</a>', # noqa: E501 ), ( "A http://reallylongdomainnamethatwillbetoolong.com/hi!", {"shorten": True}, 'A <a href="http://reallylongdomainnamethatwillbetoolong.com/hi"' ' title="http://reallylongdomainnamethatwillbetoolong.com/hi">http://reallylongdomainnametha...</a>!', # noqa: E501 ), ( "A file:///passwords.txt and http://web.com link", {}, 'A file:///passwords.txt and <a href="http://web.com">http://web.com</a> link', ), ( "A file:///passwords.txt and http://web.com link", {"permitted_protocols": ["file"]}, 'A <a href="file:///passwords.txt">file:///passwords.txt</a> and http://web.com link', ), ( "www.external-link.com", {"extra_params": 'rel="nofollow" class="external"'}, '<a href="http://www.external-link.com" rel="nofollow" class="external">www.external-link.com</a>', # noqa: E501 ), ( "www.external-link.com and www.internal-link.com/blogs extra", { "extra_params": lambda href: ( 'class="internal"' if href.startswith("http://www.internal-link.com") else 'rel="nofollow" class="external"' ) }, '<a href="http://www.external-link.com" rel="nofollow" class="external">www.external-link.com</a>' # noqa: E501 ' and <a href="http://www.internal-link.com/blogs" class="internal">www.internal-link.com/blogs</a> extra', # noqa: E501 ), ( "www.external-link.com", {"extra_params": lambda href: ' rel="nofollow" class="external" '}, '<a href="http://www.external-link.com" rel="nofollow" class="external">www.external-link.com</a>', # noqa: E501 ), ] # type: List[Tuple[Union[str, bytes], Dict[str, Any], str]] class EscapeTestCase(unittest.TestCase): def test_linkify(self): for text, kwargs, html in linkify_tests: linked = tornado.escape.linkify(text, **kwargs) self.assertEqual(linked, html) def test_xhtml_escape(self): tests = [ ("<foo>", "<foo>"), ("<foo>", "<foo>"), (b"<foo>", b"<foo>"), ("<>&\"'", "<>&"'"), ("&", "&amp;"), ("<\u00e9>", "<\u00e9>"), (b"<\xc3\xa9>", b"<\xc3\xa9>"), ] # type: List[Tuple[Union[str, bytes], Union[str, bytes]]] for unescaped, escaped in tests: self.assertEqual(utf8(xhtml_escape(unescaped)), utf8(escaped)) self.assertEqual(utf8(unescaped), utf8(xhtml_unescape(escaped))) def test_xhtml_unescape_numeric(self): tests = [ ("foo bar", "foo bar"), ("foo bar", "foo bar"), ("foo bar", "foo bar"), ("foo઼bar", "foo\u0abcbar"), ("foo&#xyz;bar", "foo&#xyz;bar"), # invalid encoding ("foo&#;bar", "foo&#;bar"), # invalid encoding ("foo&#x;bar", "foo&#x;bar"), # invalid encoding ] for escaped, unescaped in tests: self.assertEqual(unescaped, xhtml_unescape(escaped)) def test_url_escape_unicode(self): tests = [ # byte strings are passed through as-is ("\u00e9".encode("utf8"), "%C3%A9"), ("\u00e9".encode("latin1"), "%E9"), # unicode strings become utf8 ("\u00e9", "%C3%A9"), ] # type: List[Tuple[Union[str, bytes], str]] for unescaped, escaped in tests: self.assertEqual(url_escape(unescaped), escaped) def test_url_unescape_unicode(self): tests = [ ("%C3%A9", "\u00e9", "utf8"), ("%C3%A9", "\u00c3\u00a9", "latin1"), ("%C3%A9", utf8("\u00e9"), None), ] for escaped, unescaped, encoding in tests: # input strings to url_unescape should only contain ascii # characters, but make sure the function accepts both byte # and unicode strings. self.assertEqual(url_unescape(to_unicode(escaped), encoding), unescaped) self.assertEqual(url_unescape(utf8(escaped), encoding), unescaped) def test_url_escape_quote_plus(self): unescaped = "+ #%" plus_escaped = "%2B+%23%25" escaped = "%2B%20%23%25" self.assertEqual(url_escape(unescaped), plus_escaped) self.assertEqual(url_escape(unescaped, plus=False), escaped) self.assertEqual(url_unescape(plus_escaped), unescaped) self.assertEqual(url_unescape(escaped, plus=False), unescaped) self.assertEqual(url_unescape(plus_escaped, encoding=None), utf8(unescaped)) self.assertEqual( url_unescape(escaped, encoding=None, plus=False), utf8(unescaped) ) def test_escape_return_types(self): # On python2 the escape methods should generally return the same # type as their argument self.assertEqual(type(xhtml_escape("foo")), str) self.assertEqual(type(xhtml_escape("foo")), unicode_type) def test_json_decode(self): # json_decode accepts both bytes and unicode, but strings it returns # are always unicode. self.assertEqual(json_decode(b'"foo"'), "foo") self.assertEqual(json_decode('"foo"'), "foo") # Non-ascii bytes are interpreted as utf8 self.assertEqual(json_decode(utf8('"\u00e9"')), "\u00e9") def test_json_encode(self): # json deals with strings, not bytes. On python 2 byte strings will # convert automatically if they are utf8; on python 3 byte strings # are not allowed. self.assertEqual(json_decode(json_encode("\u00e9")), "\u00e9") if bytes is str: self.assertEqual(json_decode(json_encode(utf8("\u00e9"))), "\u00e9") self.assertRaises(UnicodeDecodeError, json_encode, b"\xe9") def test_squeeze(self): self.assertEqual( squeeze("sequences of whitespace chars"), "sequences of whitespace chars", ) def test_recursive_unicode(self): tests = { "dict": {b"foo": b"bar"}, "list": [b"foo", b"bar"], "tuple": (b"foo", b"bar"), "bytes": b"foo", } self.assertEqual(recursive_unicode(tests["dict"]), {"foo": "bar"}) self.assertEqual(recursive_unicode(tests["list"]), ["foo", "bar"]) self.assertEqual(recursive_unicode(tests["tuple"]), ("foo", "bar")) self.assertEqual(recursive_unicode(tests["bytes"]), "foo")
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