cpython/Lib/test/test_cgi.py
Guido van Rossum 52dbbb9068 - Issue #3300: make urllib.parse.[un]quote() default to UTF-8.
Code contributed by Matt Giuca.  quote() now encodes the input
  before quoting, unquote() decodes after unquoting.  There are
  new arguments to change the encoding and errors settings.
  There are also new APIs to skip the encode/decode steps.
  [un]quote_plus() are also affected.
2008-08-18 21:44:30 +00:00

337 lines
11 KiB
Python

from test.support import run_unittest
import cgi
import os
import sys
import tempfile
import unittest
from io 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 io import StringIO
except ImportError:
from io 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 Exception 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')]),
("a=%26&b=%3D", [('a', '&'), ('b', '=')]),
("a=%C3%BC&b=%CA%83", [('a', '\xfc'), ('b', '\u0283')]),
]
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):
return sorted(seq, key=repr)
def first_elts(list):
return [p[0] for p in list]
def first_second_elts(list):
return [(p[0], p[1][0]) for p in list]
def gen_result(data, environ):
fake_stdin = StringIO(data)
fake_stdin.seek(0)
form = cgi.FieldStorage(fp=fake_stdin, environ=environ)
result = {}
for k, v in dict(form).items():
result[k] = type(v) is list and form.getlist(k) or v.value
return result
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}
fs = cgi.FieldStorage(environ=env)
if type(expect) == type({}):
# test dict interface
self.assertEqual(len(expect), len(fs))
self.assertEqual(norm(expect.keys()), norm(fs.keys()))
##self.assertEqual(norm(expect.values()), norm(fs.values()))
##self.assertEqual(norm(expect.items()), norm(fs.items()))
self.assertEqual(fs.getvalue("nonexistent field", "default"), "default")
# test individual fields
for key in expect.keys():
expect_val = expect[key]
self.assert_(key in fs)
if len(expect_val) > 1:
self.assertEqual(fs.getvalue(key), expect_val)
else:
self.assertEqual(fs.getvalue(key), expect_val[0])
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("w+"))
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.'},
{'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)
_qs_result = {
'key1': 'value1',
'key2': ['value2x', 'value2y'],
'key3': 'value3',
'key4': 'value4'
}
def testQSAndUrlEncode(self):
data = "key2=value2x&key3=value3&key4=value4"
environ = {
'CONTENT_LENGTH': str(len(data)),
'CONTENT_TYPE': 'application/x-www-form-urlencoded',
'QUERY_STRING': 'key1=value1&key2=value2y',
'REQUEST_METHOD': 'POST',
}
v = gen_result(data, environ)
self.assertEqual(self._qs_result, v)
def testQSAndFormData(self):
data = """
---123
Content-Disposition: form-data; name="key2"
value2y
---123
Content-Disposition: form-data; name="key3"
value3
---123
Content-Disposition: form-data; name="key4"
value4
---123--
"""
environ = {
'CONTENT_LENGTH': str(len(data)),
'CONTENT_TYPE': 'multipart/form-data; boundary=-123',
'QUERY_STRING': 'key1=value1&key2=value2x',
'REQUEST_METHOD': 'POST',
}
v = gen_result(data, environ)
self.assertEqual(self._qs_result, v)
def testQSAndFormDataFile(self):
data = """
---123
Content-Disposition: form-data; name="key2"
value2y
---123
Content-Disposition: form-data; name="key3"
value3
---123
Content-Disposition: form-data; name="key4"
value4
---123
Content-Disposition: form-data; name="upload"; filename="fake.txt"
Content-Type: text/plain
this is the content of the fake file
---123--
"""
environ = {
'CONTENT_LENGTH': str(len(data)),
'CONTENT_TYPE': 'multipart/form-data; boundary=-123',
'QUERY_STRING': 'key1=value1&key2=value2x',
'REQUEST_METHOD': 'POST',
}
result = self._qs_result.copy()
result.update({
'upload': 'this is the content of the fake file'
})
v = gen_result(data, environ)
self.assertEqual(result, v)
def test_main():
run_unittest(CgiTests)
if __name__ == '__main__':
test_main()