summaryrefslogtreecommitdiffstats
path: root/Lib/test/test_cgi.py
blob: 9cf6a121ac71c2beaad19920221d7825df7b20d1 (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
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
from test.test_support import run_unittest
import cgi
import os
import sys
import tempfile
import unittest
from StringIO import StringIO

class HackedSysModule:
    # The regression test will have real values in sys.argv, which
    # will completely confuse the test of the cgi module
    argv = []
    stdin = sys.stdin

cgi.sys = HackedSysModule()

try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO

class ComparableException:
    def __init__(self, err):
        self.err = err

    def __str__(self):
        return str(self.err)

    def __eq__(self, anExc):
        if not isinstance(anExc, Exception):
            return NotImplemented
        return (self.err.__class__ == anExc.__class__ and
                self.err.args == anExc.args)

    def __getattr__(self, attr):
        return getattr(self.err, attr)

def do_test(buf, method):
    env = {}
    if method == "GET":
        fp = None
        env['REQUEST_METHOD'] = 'GET'
        env['QUERY_STRING'] = buf
    elif method == "POST":
        fp = StringIO(buf)
        env['REQUEST_METHOD'] = 'POST'
        env['CONTENT_TYPE'] = 'application/x-www-form-urlencoded'
        env['CONTENT_LENGTH'] = str(len(buf))
    else:
        raise ValueError, "unknown method: %s" % method
    try:
        return cgi.parse(fp, env, strict_parsing=1)
    except StandardError as err:
        return ComparableException(err)

# A list of test cases.  Each test case is a a two-tuple that contains
# a string with the query and a dictionary with the expected result.

parse_qsl_test_cases = [
    ("", []),
    ("&", []),
    ("&&", []),
    ("=", [('', '')]),
    ("=a", [('', 'a')]),
    ("a", [('a', '')]),
    ("a=", [('a', '')]),
    ("a=", [('a', '')]),
    ("&a=b", [('a', 'b')]),
    ("a=a+b&b=b+c", [('a', 'a b'), ('b', 'b c')]),
    ("a=1&a=2", [('a', '1'), ('a', '2')]),
]

parse_strict_test_cases = [
    ("", ValueError("bad query field: ''")),
    ("&", ValueError("bad query field: ''")),
    ("&&", ValueError("bad query field: ''")),
    (";", ValueError("bad query field: ''")),
    (";&;", ValueError("bad query field: ''")),
    # Should the next few really be valid?
    ("=", {}),
    ("=&=", {}),
    ("=;=", {}),
    # This rest seem to make sense
    ("=a", {'': ['a']}),
    ("&=a", ValueError("bad query field: ''")),
    ("=a&", ValueError("bad query field: ''")),
    ("=&a", ValueError("bad query field: 'a'")),
    ("b=a", {'b': ['a']}),
    ("b+=a", {'b ': ['a']}),
    ("a=b=a", {'a': ['b=a']}),
    ("a=+b=a", {'a': [' b=a']}),
    ("&b=a", ValueError("bad query field: ''")),
    ("b&=a", ValueError("bad query field: 'b'")),
    ("a=a+b&b=b+c", {'a': ['a b'], 'b': ['b c']}),
    ("a=a+b&a=b+a", {'a': ['a b', 'b a']}),
    ("x=1&y=2.0&z=2-3.%2b0", {'x': ['1'], 'y': ['2.0'], 'z': ['2-3.+0']}),
    ("x=1;y=2.0&z=2-3.%2b0", {'x': ['1'], 'y': ['2.0'], 'z': ['2-3.+0']}),
    ("x=1;y=2.0;z=2-3.%2b0", {'x': ['1'], 'y': ['2.0'], 'z': ['2-3.+0']}),
    ("Hbc5161168c542333633315dee1182227:key_store_seqid=400006&cuyer=r&view=bustomer&order_id=0bb2e248638833d48cb7fed300000f1b&expire=964546263&lobale=en-US&kid=130003.300038&ss=env",
     {'Hbc5161168c542333633315dee1182227:key_store_seqid': ['400006'],
      'cuyer': ['r'],
      'expire': ['964546263'],
      'kid': ['130003.300038'],
      'lobale': ['en-US'],
      'order_id': ['0bb2e248638833d48cb7fed300000f1b'],
      'ss': ['env'],
      'view': ['bustomer'],
      }),

    ("group_id=5470&set=custom&_assigned_to=31392&_status=1&_category=100&SUBMIT=Browse",
     {'SUBMIT': ['Browse'],
      '_assigned_to': ['31392'],
      '_category': ['100'],
      '_status': ['1'],
      'group_id': ['5470'],
      'set': ['custom'],
      })
    ]

def norm(seq):
    if isinstance(seq, list):
        seq.sort(key=repr)
    return seq

def first_elts(list):
    return map(lambda x:x[0], list)

def first_second_elts(list):
    return map(lambda p:(p[0], p[1][0]), list)

class CgiTests(unittest.TestCase):

    def test_qsl(self):
        for orig, expect in parse_qsl_test_cases:
            result = cgi.parse_qsl(orig, keep_blank_values=True)
            self.assertEqual(result, expect, "Error parsing %s" % repr(orig))

    def test_strict(self):
        for orig, expect in parse_strict_test_cases:
            # Test basic parsing
            d = do_test(orig, "GET")
            self.assertEqual(d, expect, "Error parsing %s" % repr(orig))
            d = do_test(orig, "POST")
            self.assertEqual(d, expect, "Error parsing %s" % repr(orig))

            env = {'QUERY_STRING': orig}
            fcd = cgi.FormContentDict(env)
            sd = cgi.SvFormContentDict(env)
            fs = cgi.FieldStorage(environ=env)
            if type(expect) == type({}):
                # test dict interface
                self.assertEqual(len(expect), len(fcd))
                self.assertEqual(norm(expect.keys()), norm(fcd.keys()))
                self.assertEqual(norm(expect.values()), norm(fcd.values()))
                self.assertEqual(norm(expect.items()), norm(fcd.items()))
                self.assertEqual(fcd.get("nonexistent field", "default"), "default")
                self.assertEqual(len(sd), len(fs))
                self.assertEqual(norm(sd.keys()), norm(fs.keys()))
                self.assertEqual(fs.getvalue("nonexistent field", "default"), "default")
                # test individual fields
                for key in expect.keys():
                    expect_val = expect[key]
                    self.assert_(key in fcd)
                    self.assertEqual(norm(fcd[key]), norm(expect[key]))
                    self.assertEqual(fcd.get(key, "default"), fcd[key])
                    self.assert_(key in fs)
                    if len(expect_val) > 1:
                        single_value = 0
                    else:
                        single_value = 1
                    try:
                        val = sd[key]
                    except IndexError:
                        self.failIf(single_value)
                        self.assertEqual(fs.getvalue(key), expect_val)
                    else:
                        self.assert_(single_value)
                        self.assertEqual(val, expect_val[0])
                        self.assertEqual(fs.getvalue(key), expect_val[0])
                    self.assertEqual(norm(sd.getlist(key)), norm(expect_val))
                    if single_value:
                        self.assertEqual(norm(sd.values()),
                               first_elts(norm(expect.values())))
                        self.assertEqual(norm(sd.items()),
                               first_second_elts(norm(expect.items())))

    def test_weird_formcontentdict(self):
        # Test the weird FormContentDict classes
        env = {'QUERY_STRING': "x=1&y=2.0&z=2-3.%2b0&1=1abc"}
        expect = {'x': 1, 'y': 2.0, 'z': '2-3.+0', '1': '1abc'}
        d = cgi.InterpFormContentDict(env)
        for k, v in expect.items():
            self.assertEqual(d[k], v)
        for k, v in d.items():
            self.assertEqual(expect[k], v)
        self.assertEqual(norm(expect.values()), norm(d.values()))

    def test_log(self):
        cgi.log("Testing")

        cgi.logfp = StringIO()
        cgi.initlog("%s", "Testing initlog 1")
        cgi.log("%s", "Testing log 2")
        self.assertEqual(cgi.logfp.getvalue(), "Testing initlog 1\nTesting log 2\n")
        if os.path.exists("/dev/null"):
            cgi.logfp = None
            cgi.logfile = "/dev/null"
            cgi.initlog("%s", "Testing log 3")
            cgi.log("Testing log 4")

    def test_fieldstorage_readline(self):
        # FieldStorage uses readline, which has the capacity to read all
        # contents of the input file into memory; we use readline's size argument
        # to prevent that for files that do not contain any newlines in
        # non-GET/HEAD requests
        class TestReadlineFile:
            def __init__(self, file):
                self.file = file
                self.numcalls = 0

            def readline(self, size=None):
                self.numcalls += 1
                if size:
                    return self.file.readline(size)
                else:
                    return self.file.readline()

            def __getattr__(self, name):
                file = self.__dict__['file']
                a = getattr(file, name)
                if not isinstance(a, int):
                    setattr(self, name, a)
                return a

        f = TestReadlineFile(tempfile.TemporaryFile())
        f.write('x' * 256 * 1024)
        f.seek(0)
        env = {'REQUEST_METHOD':'PUT'}
        fs = cgi.FieldStorage(fp=f, environ=env)
        # if we're not chunking properly, readline is only called twice
        # (by read_binary); if we are chunking properly, it will be called 5 times
        # as long as the chunksize is 1 << 16.
        self.assert_(f.numcalls > 2)

    def test_fieldstorage_multipart(self):
        #Test basic FieldStorage multipart parsing
        env = {'REQUEST_METHOD':'POST', 'CONTENT_TYPE':'multipart/form-data; boundary=---------------------------721837373350705526688164684', 'CONTENT_LENGTH':'558'}
        postdata = """-----------------------------721837373350705526688164684
Content-Disposition: form-data; name="id"

1234
-----------------------------721837373350705526688164684
Content-Disposition: form-data; name="title"


-----------------------------721837373350705526688164684
Content-Disposition: form-data; name="file"; filename="test.txt"
Content-Type: text/plain

Testing 123.

-----------------------------721837373350705526688164684
Content-Disposition: form-data; name="submit"

 Add\x20
-----------------------------721837373350705526688164684--
"""
        fs = cgi.FieldStorage(fp=StringIO(postdata), environ=env)
        self.assertEquals(len(fs.list), 4)
        expect = [{'name':'id', 'filename':None, 'value':'1234'},
                  {'name':'title', 'filename':None, 'value':''},
                  {'name':'file', 'filename':'test.txt','value':'Testing 123.\n'},
                  {'name':'submit', 'filename':None, 'value':' Add '}]
        for x in range(len(fs.list)):
            for k, exp in expect[x].items():
                got = getattr(fs.list[x], k)
                self.assertEquals(got, exp)

def test_main():
    run_unittest(CgiTests)

if __name__ == '__main__':
    test_main()