def index_html(self, REQUEST, RESPONSE):
"""
The default view of the contents of a File or Image.
Returns the contents of the file or image. Also, sets the
Content-Type HTTP header to the objects content type.
"""
self._updateFromFS()
view = _ViewEmulator().__of__(self)
# If we have a conditional get, set status 304 and return
# no content
if _checkConditionalGET(view, extra_context={}):
return ''
RESPONSE.setHeader('Content-Type', self.content_type)
# old-style If-Modified-Since header handling.
if self._setOldCacheHeaders():
# Make sure the CachingPolicyManager gets a go as well
_setCacheHeaders(view, extra_context={})
return ''
data = self._readFile(0)
data_len = len(data)
RESPONSE.setHeader('Content-Length', data_len)
#There are 2 Cache Managers which can be in play....
#need to decide which to use to determine where the cache headers
#are decided on.
if self.ZCacheable_getManager() is not None:
self.ZCacheable_set(None)
else:
_setCacheHeaders(view, extra_context={})
return data
def ZCache_set(self, ob, data, view_name, keywords, mtime_func):
""" An object is pushed into the cache
Even though this cache implementation does not cache anything per se,
this method is used as a suitable hook to activate the real heavy
lifting done by the CachePolicyManager.
"""
if ob.meta_type not in VIEW_METATYPES:
ob = _ViewEmulator().__of__(ob)
return _setCacheHeaders(ob, extra_context={})
def index_html(self, REQUEST, RESPONSE):
"""
The default view of the contents of a File or Image.
Returns the contents of the file or image. Also, sets the
Content-Type HTTP header to the objects content type.
"""
self._updateFromFS()
data = self._readFile(0)
data_len = len(data)
last_mod = self._file_mod_time
status = 200
# HTTP If-Modified-Since header handling.
header=REQUEST.get_header('If-Modified-Since', None)
if header is not None:
header = header.split(';')[0]
# Some proxies seem to send invalid date strings for this
# header. If the date string is not valid, we ignore it
# rather than raise an error to be generally consistent
# with common servers such as Apache (which can usually
# understand the screwy date string as a lucky side effect
# of the way they parse it).
try:
mod_since=long(DateTime(header).timeTime())
except:
mod_since=None
if mod_since is not None:
if last_mod > 0 and last_mod <= mod_since:
status = 304
data = ''
#Last-Modified will get stomped on by a cache policy it there is
#one set....
RESPONSE.setStatus(status)
RESPONSE.setHeader('Last-Modified', rfc1123_date(last_mod))
RESPONSE.setHeader('Content-Type', self.content_type)
if status != 304:
# Avoid setting content-length for a 304. See RFC 2616.
# Zope might still, for better or for worse, set a
# content-length header with value "0".
RESPONSE.setHeader('Content-Length', data_len)
#There are 2 Cache Managers which can be in play....
#need to decide which to use to determine where the cache headers
#are decided on.
if self.ZCacheable_getManager() is not None:
self.ZCacheable_set(None)
else:
_setCacheHeaders(_ViewEmulator().__of__(self), extra_context={})
return data
def index_html(self, REQUEST, RESPONSE):
"""
The default view of the contents of a File or Image.
Returns the contents of the file or image. Also, sets the
Content-Type HTTP header to the objects content type.
"""
self._updateFromFS()
data = self._data
# HTTP If-Modified-Since header handling.
header = REQUEST.get_header('If-Modified-Since', None)
if header is not None:
header = string.split(header, ';')[0]
# Some proxies seem to send invalid date strings for this
# header. If the date string is not valid, we ignore it
# rather than raise an error to be generally consistent
# with common servers such as Apache (which can usually
# understand the screwy date string as a lucky side effect
# of the way they parse it).
try:
mod_since = long(DateTime(header).timeTime())
except:
mod_since = None
if mod_since is not None:
last_mod = self._file_mod_time
if last_mod > 0 and last_mod <= mod_since:
# Set header values since apache caching will return
# Content-Length of 0 in response if size is not set here
RESPONSE.setHeader('Last-Modified', rfc1123_date(last_mod))
RESPONSE.setHeader('Content-Type', self.content_type)
RESPONSE.setHeader('Content-Length', len(data))
RESPONSE.setStatus(304)
return ''
#Last-Modified will get stomped on by a cache policy it there is one set....
RESPONSE.setHeader('Last-Modified', rfc1123_date(self._file_mod_time))
RESPONSE.setHeader('Content-Type', self.content_type)
RESPONSE.setHeader('Content-Length', len(data))
#There are 2 Cache Managers which can be in play....need to decide which to use
#to determine where the cache headers are decided on.
if self.ZCacheable_getManager() is not None:
self.ZCacheable_set(None)
else:
_setCacheHeaders(_ViewEmulator().__of__(self), extra_context={})
return data
def index_html(self, REQUEST, RESPONSE):
"""
The default view of the contents of a File or Image.
Returns the contents of the file or image. Also, sets the
Content-Type HTTP header to the objects content type.
"""
self._updateFromFS()
data = self._data
# HTTP If-Modified-Since header handling.
header=REQUEST.get_header('If-Modified-Since', None)
if header is not None:
header = header.split(';')[0]
# Some proxies seem to send invalid date strings for this
# header. If the date string is not valid, we ignore it
# rather than raise an error to be generally consistent
# with common servers such as Apache (which can usually
# understand the screwy date string as a lucky side effect
# of the way they parse it).
try: mod_since=long(DateTime(header).timeTime())
except: mod_since=None
if mod_since is not None:
last_mod = self._file_mod_time
if last_mod > 0 and last_mod <= mod_since:
# Set header values since apache caching will return
# Content-Length of 0 in response if size is not set here
RESPONSE.setHeader('Last-Modified', rfc1123_date(last_mod))
RESPONSE.setHeader('Content-Type', self.content_type)
RESPONSE.setHeader('Content-Length', len(data))
RESPONSE.setStatus(304)
return ''
#Last-Modified will get stomped on by a cache policy it there is one set....
RESPONSE.setHeader('Last-Modified', rfc1123_date(self._file_mod_time))
RESPONSE.setHeader('Content-Type', self.content_type)
RESPONSE.setHeader('Content-Length', len(data))
#There are 2 Cache Managers which can be in play....need to decide which to use
#to determine where the cache headers are decided on.
if self.ZCacheable_getManager() is not None:
self.ZCacheable_set(None)
else:
_setCacheHeaders(_ViewEmulator().__of__(self), extra_context={})
return data
