##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
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# This license has been certified as Open Source(tm).
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# modification, are permitted provided that the following conditions are
# met:
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# 1. Redistributions in source code must retain the above copyright
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# 2. Redistributions in binary form must reproduce the above copyright
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# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
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# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
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# 4. All advertising materials and documentation mentioning
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# "This product includes software developed by Digital Creations
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# In the event that the product being advertised includes an
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# then this clause is waived.
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# 5. Names associated with Zope or Digital Creations must not be used to
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# "This product includes software developed by Digital Creations
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# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
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#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""Image object uploaded via the web"""
__version__='0.4a'
from OFS.content_types import guess_content_type
from App.Common import rfc1123_date
from string import rfind, split
from DateTime import DateTime
from time import time
from OFS.Traversable import Traversable
from OFS.SimpleItem import Item_w__name__
from Acquisition import Implicit
from Globals import Persistent
import string
class IconImage(Persistent, Implicit, Item_w__name__):
"""Simple icon image objects uploaded via the web"""
def __init__(self, id, file):
self.data=data=file.read()
if file.headers.has_key('Content-Type'):
content_type = file.headers['Content-Type']
else:
content_type, enc = guess_content_type(file.filename, data)
if content_type:
self.content_type=content_type
else:
self.content_type = 'image/%s' % file.filename[rfind(file.filename,'.')+1:]
self.__name__ = id
self.lmt=time()
self.lmh=rfc1123_date(self.lmt)
def index_html(self, REQUEST, RESPONSE):
"""Default document"""
# HTTP If-Modified-Since header handling. This is duplicated
# from OFS.Image.Image - it really should be consolidated
# somewhere...
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:
if getattr(self, 'lmt', None):
last_mod = long(self.lmt)
else:
last_mod = long(0)
if last_mod > 0 and last_mod <= mod_since:
RESPONSE.setStatus(304)
return ''
RESPONSE.setHeader('Content-Type', self.content_type)
RESPONSE.setHeader('Last-Modified', self.lmh)
return self.data
def __str__(self):
"""Returns the source path for the image"""
return string.join(self.getPhysicalPath()[1:], '/')
__repr__ = __str__
HEAD__roles__=None
def HEAD(self, REQUEST, RESPONSE):
""" """
RESPONSE.setHeader('Content-Type', self.content_type)
RESPONSE.setHeader('Last-Modified', self.lmh)
return ''
def __len__(self):
# This is bogus and needed because of the way Python tests truth.
return 1
