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- ##############################################################################
- #
- # Zope Public License (ZPL) Version 1.0
- # -------------------------------------
- #
- # Copyright (c) Digital Creations. All rights reserved.
- #
- # This license has been certified as Open Source(tm).
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # 1. Redistributions in source code must retain the above copyright
- # notice, this list of conditions, and the following disclaimer.
- #
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions, and the following disclaimer in
- # the documentation and/or other materials provided with the
- # distribution.
- #
- # 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
- # violation to remove this button, it is requested that the
- # 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.
- #
- # 4. All advertising materials and documentation mentioning
- # features derived from or use of this software must display
- # the following acknowledgement:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # In the event that the product being advertised includes an
- # intact Zope distribution (with copyright and license included)
- # then this clause is waived.
- #
- # 5. Names associated with Zope or Digital Creations must not be used to
- # endorse or promote products derived from this software without
- # prior written permission from Digital Creations.
- #
- # 6. Modified redistributions of any form whatsoever must retain
- # the following acknowledgment:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # Intact (re-)distributions of any official Zope release do not
- # require an external acknowledgement.
- #
- # 7. Modifications are encouraged but must be packaged separately as
- # patches to official Zope releases. Distributions that do not
- # clearly separate the patches from the original work must be clearly
- # labeled as unofficial distributions. Modifications which do not
- # carry the name Zope may be packaged in any form, as long as they
- # conform to all of the clauses above.
- #
- #
- # Disclaimer
- #
- # THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
- # EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
- # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- # 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.
- #
- #
- # 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.
- #
- ##############################################################################
- __rcs_id__='$Id: MIMETag.py,v 1.5 2000/05/10 18:43:34 tseaver Exp $'
- __version__='$Revision: 1.5 $'[11:-2]
-
- from DocumentTemplate.DT_Util import *
- from DocumentTemplate.DT_String import String
- from MimeWriter import MimeWriter
- from cStringIO import StringIO
- import string, mimetools
-
- MIMEError = "MIME Tag Error"
-
- class MIMETag:
- '''
- '''
-
- name='mime'
- blockContinuations=('boundary',)
- encode=None
-
- def __init__(self, blocks):
- self.sections = []
-
- for tname, args, section in blocks:
- if tname == 'mime':
- args = parse_params( args
- , type=None, type_expr=None
- , disposition=None, disposition_expr=None
- , encode=None, encode_expr=None
- , name=None, name_expr=None
- , filename=None, filename_expr=None
- , skip_expr=None
- , multipart=None
- )
- self.multipart = args.get('multipart', 'mixed')
- else:
- args = parse_params( args
- , type=None, type_expr=None
- , disposition=None, disposition_expr=None
- , encode=None, encode_expr=None
- , name=None, name_expr=None
- , filename=None, filename_expr=None
- , skip_expr=None
- )
-
- has_key=args.has_key
-
- if has_key('type'):
- type = args['type']
- else:
- type = 'application/octet-stream'
-
- if has_key('type_expr'):
- if has_key('type'):
- raise ParseError, _tm('type and type_expr given', 'mime')
- args['type_expr']=VSEval.Eval(args['type_expr'], expr_globals)
- elif not has_key('type'):
- args['type']='application/octet-stream'
-
- if has_key('disposition_expr'):
- if has_key('disposition'):
- raise ParseError, _tm('disposition and disposition_expr given', 'mime')
- args['disposition_expr']=VSEval.Eval(args['disposition_expr'], expr_globals)
- elif not has_key('disposition'):
- args['disposition']=''
-
- if has_key('encode_expr'):
- if has_key('encode'):
- raise ParseError, _tm('encode and encode_expr given', 'mime')
- args['encode_expr']=VSEval.Eval(args['encode_expr'], expr_globals)
- elif not has_key('encode'):
- args['encode']='base64'
-
- if has_key('name_expr'):
- if has_key('name'):
- raise ParseError, _tm('name and name_expr given', 'mime')
- args['name_expr']=VSEval.Eval(args['name_expr'], expr_globals)
- elif not has_key('name'):
- args['name']=''
-
- if has_key('filename_expr'):
- if has_key('filename'):
- raise ParseError, _tm('filename and filename_expr given', 'mime')
- args['filename_expr']=VSEval.Eval(args['filename_expr'], expr_globals)
- elif not has_key('filename'):
- args['filename']=''
-
- if has_key('skip_expr'):
- args['skip_expr']=VSEval.Eval(args['skip_expr'], expr_globals)
-
- if args['encode'] not in \
- ('base64', 'quoted-printable', 'uuencode', 'x-uuencode',
- 'uue', 'x-uue', '7bit'):
- raise MIMEError, (
- 'An unsupported encoding was specified in tag')
-
- self.sections.append((args, section.blocks))
-
-
- def render(self, md):
- contents=[]
- mw = MimeWriter(StringIO())
- outer = mw.startmultipartbody(self.multipart)
- for x in self.sections:
- a, b = x
- has_key=a.has_key
-
- if has_key('skip_expr') and a['skip_expr'].eval(md):
- continue
-
- inner = mw.nextpart()
-
- if has_key('type_expr'): t=a['type_expr'].eval(md)
- else: t=a['type']
-
- if has_key('disposition_expr'): d=a['disposition_expr'].eval(md)
- else: d=a['disposition']
-
- if has_key('encode_expr'): e=a['encode_expr'].eval(md)
- else: e=a['encode']
-
- if has_key('name_expr'): n=a['name_expr'].eval(md)
- else: n=a['name']
-
- if has_key('filename_expr'): f=a['filename_expr'].eval(md)
- else: f=a['filename']
-
- if d:
- if f:
- inner.addheader('Content-Disposition', '%s;\n filename="%s"' % (d, f))
- else:
- inner.addheader('Content-Disposition', d)
-
- inner.addheader('Content-Transfer-Encoding', e)
- if n:
- plist = [('name', n)]
- else:
- plist = []
-
- innerfile = inner.startbody(t, plist, 1)
-
- output = StringIO()
- if e == '7bit':
- innerfile.write(render_blocks(b, md))
- else:
- mimetools.encode(StringIO(render_blocks(b, md)),
- output, e)
- output.seek(0)
- innerfile.write(output.read())
-
- # XXX what if self.sections is empty ??? does it matter that mw.lastpart() is called
- # right after mw.startmultipartbody() ?
- if x is self.sections[-1]:
- mw.lastpart()
-
- outer.seek(0)
- return outer.read()
-
-
- __call__=render
-
-
-
- String.commands['mime'] = MIMETag
-
-
-
-
-
-