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cpython/Lib/test/test_cgi.py

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from test.test_support import verify, verbose
import cgi
import os
import sys
import tempfile
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 __cmp__(self, anExc):
if not isinstance(anExc, Exception):
return -1
x = cmp(self.err.__class__, anExc.__class__)
if x != 0:
return x
return cmp(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, 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(list):
if type(list) == type([]):
list.sort()
return list
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)
def main():
for orig, expect in parse_qsl_test_cases:
result = cgi.parse_qsl(orig, keep_blank_values=True)
print repr(orig), '=>', result
verify(result == expect, "Error parsing %s" % repr(orig))
for orig, expect in parse_strict_test_cases:
# Test basic parsing
print repr(orig)
d = do_test(orig, "GET")
verify(d == expect, "Error parsing %s" % repr(orig))
d = do_test(orig, "POST")
verify(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
verify(len(expect) == len(fcd))
verify(norm(expect.keys()) == norm(fcd.keys()))
verify(norm(expect.values()) == norm(fcd.values()))
verify(norm(expect.items()) == norm(fcd.items()))
verify(fcd.get("nonexistent field", "default") == "default")
verify(len(sd) == len(fs))
verify(norm(sd.keys()) == norm(fs.keys()))
verify(fs.getvalue("nonexistent field", "default") == "default")
# test individual fields
for key in expect.keys():
expect_val = expect[key]
verify(fcd.has_key(key))
verify(norm(fcd[key]) == norm(expect[key]))
verify(fcd.get(key, "default") == fcd[key])
verify(fs.has_key(key))
if len(expect_val) > 1:
single_value = 0
else:
single_value = 1
try:
val = sd[key]
except IndexError:
verify(not single_value)
verify(fs.getvalue(key) == expect_val)
else:
verify(single_value)
verify(val == expect_val[0])
verify(fs.getvalue(key) == expect_val[0])
verify(norm(sd.getlist(key)) == norm(expect_val))
if single_value:
verify(norm(sd.values()) == \
first_elts(norm(expect.values())))
verify(norm(sd.items()) == \
first_second_elts(norm(expect.items())))
# 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():
verify(d[k] == v)
for k, v in d.items():
verify(expect[k] == v)
verify(norm(expect.values()) == norm(d.values()))
print "Testing log"
cgi.log("Testing")
cgi.logfp = sys.stdout
cgi.initlog("%s", "Testing initlog 1")
cgi.log("%s", "Testing log 2")
if os.path.exists("/dev/null"):
cgi.logfp = None
cgi.logfile = "/dev/null"
cgi.initlog("%s", "Testing log 3")
cgi.log("Testing log 4")
print "Test FieldStorage methods that use readline"
# 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.
verify(f.numcalls > 2)
print "Test basic FieldStorage multipart parsing"
env = {'REQUEST_METHOD':'POST', 'CONTENT_TYPE':'multipart/form-data; boundary=---------------------------721837373350705526688164684', 'CONTENT_LENGTH':'558'}
postdata = r"""-----------------------------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
-----------------------------721837373350705526688164684--
"""
fs = cgi.FieldStorage(fp=StringIO(postdata), environ=env)
verify(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)
verify(got == exp)
main()
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