tw-public@0: """
tw-public@0:     MoinMoin - newpage action
tw-public@0: 
tw-public@0:     Create a new page with optional template. Can be used with NewPage.py macro.
tw-public@0: 
tw-public@0:     @copyright: 2004 Vito Miliano (vito_moinnewpagewithtemplate@perilith.com)
tw-public@0:     @copyright: 2004 by Nir Soffer <nirs@freeshell.org>
tw-public@0:     @copyright: 2004 Alexander Schremmer <alex AT alexanderweb DOT de>
tw-public@0:     @license: GNU GPL, see COPYING for details.
tw-public@0: """
tw-public@0: 
tw-public@0: from MoinMoin.util import MoinMoinNoFooter
tw-public@0: from MoinMoin.Page import Page
tw-public@0: import time
tw-public@0: 
tw-public@0: class NewPage:
tw-public@0:     """ Open editor for a new page, using template """
tw-public@0: 
tw-public@0:     def __init__(self, request, referrer):
tw-public@0:         self.request = request
tw-public@0:         self.referrer = referrer # The page the user came from
tw-public@0:         self.pagename = self.request.form.get('pagename', [None])[0]
tw-public@0:         self.nametemplate = self.request.form.get('nametemplate', ['%s'])[0]
tw-public@0:         self.nametemplate = self.nametemplate.replace('\x00','')
tw-public@0: 
tw-public@0:     def checkAndCombineArguments(self):
tw-public@0:         """ Check arguments in form, return error msg
tw-public@0: 
tw-public@0:         @rtype: unicode
tw-public@0:         @return: error message
tw-public@0:         """
tw-public@0:         _ = self.request.getText
tw-public@0:         need_replace = self.nametemplate.find('%s') != -1
tw-public@0:         if not self.pagename and need_replace:
tw-public@0:             return _("Cannot create a new page without a page name."
tw-public@0:                      "  Please specify a page name.")
tw-public@0:         if need_replace: 
tw-public@0: 	    # generate a string that can be safely used as the pagename
tw-public@0: 	    # template variable
tw-public@0:             repl = 'A@'
tw-public@0:             i = 0
tw-public@0:             while self.nametemplate.find(repl) != -1:
tw-public@0:                 repl += ['#','&','$','x','X',':','@'][i]
tw-public@0:                 i += 1
tw-public@0:                 i = i % 7
tw-public@0:             template = self.nametemplate.replace('%s', repl)
tw-public@0:         else:
tw-public@0:             template = self.nametemplate
tw-public@0:         template = template.encode('utf-8')
tw-public@0:         template = time.strftime(template, self.request.user.getTime(time.time()))
tw-public@0:         template = template.decode('utf-8')
tw-public@0:         if need_replace:
tw-public@0:             self.pagename = template.replace(repl, self.pagename)
tw-public@0:         else:
tw-public@0:             self.pagename = template
tw-public@0:         return ''
tw-public@0:         
tw-public@0:     def checkPermissions(self):
tw-public@0:         """ Check write permission in form, return error msg
tw-public@0: 
tw-public@0:         @rtype: unicode
tw-public@0:         @return: error message
tw-public@0:         """
tw-public@0:         _ = self.request.getText
tw-public@0:         page = Page(self.request, self.pagename)
tw-public@0:         if not (page.isWritable() and self.request.user.may.read(self.pagename)):
tw-public@0:             # Same error as the edit page for localization reasons
tw-public@0:             return _('You are not allowed to edit this page.')
tw-public@0:         return ''
tw-public@0: 
tw-public@0:     def render(self):
tw-public@0:         """ Redirect to the new page, using edit action and template """
tw-public@0:         
tw-public@0:         error = self.checkAndCombineArguments() or self.checkPermissions()
tw-public@0:         if error:
tw-public@0:             # Send back to the page you came from, with an error msg
tw-public@0:             page = Page(self.request, self.referrer)
tw-public@0:             page.send_page(self.request, msg=error)
tw-public@0:         else:
tw-public@0:             # Redirect to new page using edit action. No error checking
tw-public@0:             # is needed because it is done later in new request.
tw-public@0:             pagename = self.pagename
tw-public@0:             query = {'action': 'edit', 'backto': self.referrer}
tw-public@0: 
tw-public@0:             template = self.request.form.get('template', [''])[0]
tw-public@0:             if template:
tw-public@0:                 from MoinMoin.wikiutil import quoteWikinameURL
tw-public@0:                 query['template'] = quoteWikinameURL(template)
tw-public@0: 
tw-public@0:             parent = self.request.form.get('parent', [''])[0]
tw-public@0:             if parent:
tw-public@0:                 pagename = "%s/%s" % (parent, pagename)
tw-public@0: 
tw-public@0:             url = Page(self.request, pagename).url(self.request, query, 0)
tw-public@0:             self.request.http_redirect(url)
tw-public@0:             raise MoinMoinNoFooter
tw-public@0: 
tw-public@0:         return ''
tw-public@0: 
tw-public@0: def execute(pagename, request):
tw-public@0:     """ Temporary glue code for current moin action system """
tw-public@0:     return NewPage(request, pagename).render()
tw-public@0: