summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_urllib2net.py
blob: c2da147eedb977f32befc0e1492df589839a544a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
#!/usr/bin/env python

import unittest
from test import support
from test.test_urllib2 import sanepathname2url

import os
import socket
import sys
import urllib.error
import urllib.request


def _retry_thrice(func, exc, *args, **kwargs):
    for i in range(3):
        try:
            return func(*args, **kwargs)
        except exc as e:
            last_exc = e
            continue
        except:
            raise
    raise last_exc

def _wrap_with_retry_thrice(func, exc):
    def wrapped(*args, **kwargs):
        return _retry_thrice(func, exc, *args, **kwargs)
    return wrapped

# Connecting to remote hosts is flaky.  Make it more robust by retrying
# the connection several times.
_urlopen_with_retry = _wrap_with_retry_thrice(urllib.request.urlopen,
                                              urllib.error.URLError)


class AuthTests(unittest.TestCase):
    """Tests urllib2 authentication features."""

## Disabled at the moment since there is no page under python.org which
## could be used to HTTP authentication.
#
#    def test_basic_auth(self):
#        import http.client
#
#        test_url = "http://www.python.org/test/test_urllib2/basic_auth"
#        test_hostport = "www.python.org"
#        test_realm = 'Test Realm'
#        test_user = 'test.test_urllib2net'
#        test_password = 'blah'
#
#        # failure
#        try:
#            _urlopen_with_retry(test_url)
#        except urllib2.HTTPError, exc:
#            self.assertEqual(exc.code, 401)
#        else:
#            self.fail("urlopen() should have failed with 401")
#
#        # success
#        auth_handler = urllib2.HTTPBasicAuthHandler()
#        auth_handler.add_password(test_realm, test_hostport,
#                                  test_user, test_password)
#        opener = urllib2.build_opener(auth_handler)
#        f = opener.open('http://localhost/')
#        response = _urlopen_with_retry("http://www.python.org/")
#
#        # The 'userinfo' URL component is deprecated by RFC 3986 for security
#        # reasons, let's not implement it!  (it's already implemented for proxy
#        # specification strings (that is, URLs or authorities specifying a
#        # proxy), so we must keep that)
#        self.assertRaises(http.client.InvalidURL,
#                          urllib2.urlopen, "http://evil:thing@example.com")


class CloseSocketTest(unittest.TestCase):

    def test_close(self):
        import socket, http.client, gc

        # calling .close() on urllib2's response objects should close the
        # underlying socket

        response = _urlopen_with_retry("http://www.python.org/")
        sock = response.fp
        self.assert_(not sock.closed)
        response.close()
        self.assert_(sock.closed)

class OtherNetworkTests(unittest.TestCase):
    def setUp(self):
        if 0:  # for debugging
            import logging
            logger = logging.getLogger("test_urllib2net")
            logger.addHandler(logging.StreamHandler())

    # XXX The rest of these tests aren't very good -- they don't check much.
    # They do sometimes catch some major disasters, though.

    def test_ftp(self):
        urls = [
            'ftp://ftp.kernel.org/pub/linux/kernel/README',
            'ftp://ftp.kernel.org/pub/linux/kernel/non-existent-file',
            #'ftp://ftp.kernel.org/pub/leenox/kernel/test',
            'ftp://gatekeeper.research.compaq.com/pub/DEC/SRC'
                '/research-reports/00README-Legal-Rules-Regs',
            ]
        self._test_urls(urls, self._extra_handlers())

    def test_file(self):
        TESTFN = support.TESTFN
        f = open(TESTFN, 'w')
        try:
            f.write('hi there\n')
            f.close()
            urls = [
                'file:' + sanepathname2url(os.path.abspath(TESTFN)),
                ('file:///nonsensename/etc/passwd', None,
                 urllib.error.URLError),
                ]
            self._test_urls(urls, self._extra_handlers(), retry=True)
        finally:
            os.remove(TESTFN)

    # XXX Following test depends on machine configurations that are internal
    # to CNRI.  Need to set up a public server with the right authentication
    # configuration for test purposes.

##     def test_cnri(self):
##         if socket.gethostname() == 'bitdiddle':
##             localhost = 'bitdiddle.cnri.reston.va.us'
##         elif socket.gethostname() == 'bitdiddle.concentric.net':
##             localhost = 'localhost'
##         else:
##             localhost = None
##         if localhost is not None:
##             urls = [
##                 'file://%s/etc/passwd' % localhost,
##                 'http://%s/simple/' % localhost,
##                 'http://%s/digest/' % localhost,
##                 'http://%s/not/found.h' % localhost,
##                 ]

##             bauth = HTTPBasicAuthHandler()
##             bauth.add_password('basic_test_realm', localhost, 'jhylton',
##                                'password')
##             dauth = HTTPDigestAuthHandler()
##             dauth.add_password('digest_test_realm', localhost, 'jhylton',
##                                'password')

##             self._test_urls(urls, self._extra_handlers()+[bauth, dauth])

    def _test_urls(self, urls, handlers, retry=True):
        import socket
        import time
        import logging
        debug = logging.getLogger("test_urllib2").debug

        urlopen = urllib.request.build_opener(*handlers).open
        if retry:
            urlopen = _wrap_with_retry_thrice(urlopen, urllib.error.URLError)

        for url in urls:
            if isinstance(url, tuple):
                url, req, expected_err = url
            else:
                req = expected_err = None
            debug(url)
            try:
                f = urlopen(url, req)
            except EnvironmentError as err:
                debug(err)
                if expected_err:
                    msg = ("Didn't get expected error(s) %s for %s %s, got %s: %s" %
                           (expected_err, url, req, type(err), err))
                    self.assert_(isinstance(err, expected_err), msg)
            else:
                with support.transient_internet():
                    buf = f.read()
                f.close()
                debug("read %d bytes" % len(buf))
            debug("******** next url coming up...")
            time.sleep(0.1)

    def _extra_handlers(self):
        handlers = []

        cfh = urllib.request.CacheFTPHandler()
        cfh.setTimeout(1)
        handlers.append(cfh)

        return handlers


class TimeoutTest(unittest.TestCase):
    def test_http_basic(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        u = _urlopen_with_retry("http://www.python.org")
        self.assertTrue(u.fp.raw._sock.gettimeout() is None)

    def test_http_default_timeout(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        socket.setdefaulttimeout(60)
        try:
            u = _urlopen_with_retry("http://www.python.org")
        finally:
            socket.setdefaulttimeout(None)
        self.assertEqual(u.fp.raw._sock.gettimeout(), 60)

    def test_http_no_timeout(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        socket.setdefaulttimeout(60)
        try:
            u = _urlopen_with_retry("http://www.python.org", timeout=None)
        finally:
            socket.setdefaulttimeout(None)
        self.assertTrue(u.fp.raw._sock.gettimeout() is None)

    def test_http_timeout(self):
        u = _urlopen_with_retry("http://www.python.org", timeout=120)
        self.assertEqual(u.fp.raw._sock.gettimeout(), 120)

    FTP_HOST = "ftp://ftp.mirror.nl/pub/mirror/gnu/"

    def test_ftp_basic(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        u = _urlopen_with_retry(self.FTP_HOST)
        self.assertTrue(u.fp.fp.raw._sock.gettimeout() is None)

    def test_ftp_default_timeout(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        socket.setdefaulttimeout(60)
        try:
            u = _urlopen_with_retry(self.FTP_HOST)
        finally:
            socket.setdefaulttimeout(None)
        self.assertEqual(u.fp.fp.raw._sock.gettimeout(), 60)

    def test_ftp_no_timeout(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        socket.setdefaulttimeout(60)
        try:
            u = _urlopen_with_retry(self.FTP_HOST, timeout=None)
        finally:
            socket.setdefaulttimeout(None)
        self.assertTrue(u.fp.fp.raw._sock.gettimeout() is None)

    def test_ftp_timeout(self):
        u = _urlopen_with_retry(self.FTP_HOST, timeout=60)
        self.assertEqual(u.fp.fp.raw._sock.gettimeout(), 60)


def test_main():
    support.requires("network")
    support.run_unittest(AuthTests,
                              OtherNetworkTests,
                              CloseSocketTest,
                              TimeoutTest,
                              )

if __name__ == "__main__":
    test_main()