f065fca514
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@4104 fd906abe-77d9-0310-91a1-e0d9ade77398
108 lines
3.6 KiB
Python
108 lines
3.6 KiB
Python
#
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# Copyright (c) 2010 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Basic (sample) implementations for links and link management.
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$Id$
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"""
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from docutils.nodes import Text
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from zope.interface import implements
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from zope.traversing.browser import absoluteURL
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from cybertools.link.interfaces import ILink, ILinkManager
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from cybertools.wiki.interfaces import ILinkProcessor
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class LinkProcessor(object):
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""" Abstract base class. """
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implements(ILinkProcessor)
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source = request = None
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targetName = ''
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def __init__(self, context):
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self.context = context
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def process(self):
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if '..' in self.targetName:
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return
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wiki = self.source.getWiki()
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manager = wiki.getManager()
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lmName = self.source.getConfig('linkManager')
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lm = manager.getPlugin(ILinkManager, lmName)
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targetPageName = self.targetName
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params = fragment = ''
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if '?' in targetPageName:
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targetPageName, params = targetPageName.split('?', 1)
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if '#' in targetPageName:
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targetPageName, fragment = targetPageName.split('#', 1)
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#existing = iter(lm.query(source=self.source, name=self.targetName))
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for link in lm.query(source=self.source, name=self.targetName):
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#link = existing.next()
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if link.target is not None:
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target = self.getTarget(manager, wiki, link.target)
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else:
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target = None
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break
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else:
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target = self.findTarget(manager, wiki, targetPageName)
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link = lm.createLink(name=self.targetName,
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source=self.source, target=target)
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if fragment:
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link.targetFragment = fragment
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if params:
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link.targetParameters = params
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if self.request is not None:
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if target is None:
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#uri = link.refuri = '%s/create.html?name=%s' % (
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uri = '%s/@@create.html?name=%s' % (
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absoluteURL(wiki, self.request), link.name)
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else:
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uri = target.getURI(self.request)
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uri += self.fragmentAndParams(fragment, params)
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self.setURI(uri)
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if target is None:
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self.markPresentation('create')
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self.addText('?')
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def findTarget(self, manager, wiki, name):
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return wiki.getPage(name)
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def getTarget(self, manager, wiki, uid):
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return manager.getObject(uid)
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def fragmentAndParams(self, fragment, params):
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f = p = ''
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if fragment:
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f = '#' + fragment
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if params:
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p = '?' + params
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return f + p
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def setURI(self, uri):
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raise ValueError('To be implemented by subclass.')
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def markPresentation(self, feature):
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raise ValueError('To be implemented by subclass.')
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def addText(self, text):
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raise ValueError('To be implemented by subclass.')
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