85 lines
2.3 KiB
Python
85 lines
2.3 KiB
Python
"""Response classes used by urllib.
|
|
|
|
The base class, addbase, defines a minimal file-like interface,
|
|
including read() and readline(). The typical response object is an
|
|
addinfourl instance, which defines an info() method that returns
|
|
headers and a geturl() method that returns the url.
|
|
"""
|
|
|
|
import tempfile
|
|
|
|
__all__ = ['addbase', 'addclosehook', 'addinfo', 'addinfourl']
|
|
|
|
|
|
class addbase(tempfile._TemporaryFileWrapper):
|
|
"""Base class for addinfo and addclosehook. Is a good idea for garbage collection."""
|
|
|
|
# XXX Add a method to expose the timeout on the underlying socket?
|
|
|
|
def __init__(self, fp):
|
|
super(addbase, self).__init__(fp, '<urllib response>', delete=False)
|
|
# Keep reference around as this was part of the original API.
|
|
self.fp = fp
|
|
|
|
def __repr__(self):
|
|
return '<%s at %r whose fp = %r>' % (self.__class__.__name__,
|
|
id(self), self.file)
|
|
|
|
def __enter__(self):
|
|
if self.fp.closed:
|
|
raise ValueError("I/O operation on closed file")
|
|
return self
|
|
|
|
def __exit__(self, type, value, traceback):
|
|
self.close()
|
|
|
|
|
|
class addclosehook(addbase):
|
|
"""Class to add a close hook to an open file."""
|
|
|
|
def __init__(self, fp, closehook, *hookargs):
|
|
super(addclosehook, self).__init__(fp)
|
|
self.closehook = closehook
|
|
self.hookargs = hookargs
|
|
|
|
def close(self):
|
|
try:
|
|
closehook = self.closehook
|
|
hookargs = self.hookargs
|
|
if closehook:
|
|
self.closehook = None
|
|
self.hookargs = None
|
|
closehook(*hookargs)
|
|
finally:
|
|
super(addclosehook, self).close()
|
|
|
|
|
|
class addinfo(addbase):
|
|
"""class to add an info() method to an open file."""
|
|
|
|
def __init__(self, fp, headers):
|
|
super(addinfo, self).__init__(fp)
|
|
self.headers = headers
|
|
|
|
def info(self):
|
|
return self.headers
|
|
|
|
|
|
class addinfourl(addinfo):
|
|
"""class to add info() and geturl() methods to an open file."""
|
|
|
|
def __init__(self, fp, headers, url, code=None):
|
|
super(addinfourl, self).__init__(fp, headers)
|
|
self.url = url
|
|
self.code = code
|
|
|
|
@property
|
|
def status(self):
|
|
return self.code
|
|
|
|
def getcode(self):
|
|
return self.code
|
|
|
|
def geturl(self):
|
|
return self.url
|