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Update wsgiref for PEP 3333, and fix errors introduced into the test suite by converting type() checks to isinstance().

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(When WSGI specifies a built-in type, it does NOT mean "this type or a subclass" -- it means 'type(x) is SpecifiedType'.)
This commit is contained in:
Phillip J. Eby 2010-11-02 22:28:59 +00:00
parent 5a43f72d1b
commit e159422ce9
4 changed files with 67 additions and 93 deletions
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49
Lib/wsgiref/handlers.py
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@ -46,7 +46,7 @@ class BaseHandler:
traceback_limit = None # Print entire traceback to self.get_stderr()
error_status = "500 Internal Server Error"
error_headers = [('Content-Type','text/plain')]
error_body = "A server error occurred. Please contact the administrator."
error_body = b"A server error occurred. Please contact the administrator."
# State variables (don't mess with these)
status = result = None
@ -137,7 +137,7 @@ class BaseHandler:
self.set_content_length()
def start_response(self, status, headers,exc_info=None):
"""'start_response()' callable as specified by PEP 333"""
"""'start_response()' callable as specified by PEP 3333"""
if exc_info:
try:
@ -149,49 +149,48 @@ class BaseHandler:
elif self.headers is not None:
raise AssertionError("Headers already set!")
self.status = status
self.headers = self.headers_class(headers)
status = self._convert_string_type(status, "Status")
assert len(status)>=4,"Status must be at least 4 characters"
assert int(status[:3]),"Status message must begin w/3-digit code"
assert status[3]==" ", "Status message must have a space after code"
str_headers = []
for name,val in headers:
name = self._convert_string_type(name, "Header name")
val = self._convert_string_type(val, "Header value")
str_headers.append((name, val))
assert not is_hop_by_hop(name),"Hop-by-hop headers not allowed"
if __debug__:
for name, val in headers:
name = self._convert_string_type(name, "Header name")
val = self._convert_string_type(val, "Header value")
assert not is_hop_by_hop(name),"Hop-by-hop headers not allowed"
self.status = status
self.headers = self.headers_class(str_headers)
return self.write
def _convert_string_type(self, value, title):
"""Convert/check value type."""
if isinstance(value, str):
if type(value) is str:
return value
assert isinstance(value, bytes), \
"{0} must be a string or bytes object (not {1})".format(title, value)
return str(value, "iso-8859-1")
raise AssertionError(
"{0} must be of type str (got {1})".format(title, repr(value))
)
def send_preamble(self):
"""Transmit version/status/date/server, via self._write()"""
if self.origin_server:
if self.client_is_modern():
self._write('HTTP/%s %s\r\n' % (self.http_version,self.status))
self._write(('HTTP/%s %s\r\n' % (self.http_version,self.status)).encode('iso-8859-1'))
if 'Date' not in self.headers:
self._write(
'Date: %s\r\n' % format_date_time(time.time())
('Date: %s\r\n' % format_date_time(time.time())).encode('iso-8859-1')
)
if self.server_software and 'Server' not in self.headers:
self._write('Server: %s\r\n' % self.server_software)
self._write(('Server: %s\r\n' % self.server_software).encode('iso-8859-1'))
else:
self._write('Status: %s\r\n' % self.status)
self._write(('Status: %s\r\n' % self.status).encode('iso-8859-1'))
def write(self, data):
"""'write()' callable as specified by PEP 333"""
"""'write()' callable as specified by PEP 3333"""
assert isinstance(data, (str, bytes)), \
"write() argument must be a string or bytes"
assert type(data) is bytes, \
"write() argument must be a bytes instance"
if not self.status:
raise AssertionError("write() before start_response()")
@ -256,7 +255,7 @@ class BaseHandler:
self.headers_sent = True
if not self.origin_server or self.client_is_modern():
self.send_preamble()
self._write(str(self.headers))
self._write(bytes(self.headers))
def result_is_file(self):
@ -376,12 +375,6 @@ class SimpleHandler(BaseHandler):
self.environ.update(self.base_env)
def _write(self,data):
if isinstance(data, str):
try:
data = data.encode("iso-8859-1")
except UnicodeEncodeError:
raise ValueError("Unicode data must contain only code points"
" representable in ISO-8859-1 encoding")
self.stdout.write(data)
def _flush(self):