1 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
2 # This module is free software, and you may redistribute it and/or modify
3 # under the same terms as Python, so long as this copyright message and
4 # disclaimer are retained in their original form.
5 #
6 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
7 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
8 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
9 # POSSIBILITY OF SUCH DAMAGE.
10 #
11 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
12 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
13 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
14 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
15 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
16 #
17 # $Id: ZRoundup.py,v 1.17 2003-11-12 01:00:58 richard Exp $
18 #
19 ''' ZRoundup module - exposes the roundup web interface to Zope
21 This frontend works by providing a thin layer that sits between Zope and the
22 regular CGI interface of roundup, providing the web frontend with the minimum
23 of effort.
25 This means that the regular CGI interface does all authentication quite
26 independently of Zope. The roundup code is kept in memory though, and it
27 runs in the same server as all your other Zope stuff, so it does have _some_
28 advantages over regular CGI :)
29 '''
31 import urlparse
33 from Globals import InitializeClass, HTMLFile
34 from OFS.SimpleItem import Item
35 from OFS.PropertyManager import PropertyManager
36 from Acquisition import Explicit, Implicit
37 from Persistence import Persistent
38 from AccessControl import ClassSecurityInfo
39 from AccessControl import ModuleSecurityInfo
40 modulesecurity = ModuleSecurityInfo()
42 import roundup.instance
43 from roundup.cgi.client import NotFound
45 modulesecurity.declareProtected('View management screens',
46 'manage_addZRoundupForm')
47 manage_addZRoundupForm = HTMLFile('dtml/manage_addZRoundupForm', globals())
49 modulesecurity.declareProtected('Add Z Roundups', 'manage_addZRoundup')
50 def manage_addZRoundup(self, id, instance_home, REQUEST):
51 """Add a ZRoundup product """
52 # validate the instance_home
53 roundup.instance.open(instance_home)
54 self._setObject(id, ZRoundup(id, instance_home))
55 return self.manage_main(self, REQUEST)
57 class RequestWrapper:
58 '''Make the Zope RESPONSE look like a BaseHTTPServer
59 '''
60 def __init__(self, RESPONSE):
61 self.RESPONSE = RESPONSE
62 self.wfile = self.RESPONSE
63 def send_response(self, status):
64 self.RESPONSE.setStatus(status)
65 def send_header(self, header, value):
66 self.RESPONSE.addHeader(header, value)
67 def end_headers(self):
68 # not needed - the RESPONSE object handles this internally on write()
69 pass
71 class FormItem:
72 '''Make a Zope form item look like a cgi.py one
73 '''
74 def __init__(self, value):
75 self.value = value
76 if hasattr(self.value, 'filename'):
77 self.filename = self.value.filename
78 self.file = self.value
80 class FormWrapper:
81 '''Make a Zope form dict look like a cgi.py one
82 '''
83 def __init__(self, form):
84 self.form = form
85 def __getitem__(self, item):
86 return FormItem(self.form[item])
87 def has_key(self, item):
88 return self.form.has_key(item)
89 def keys(self):
90 return self.form.keys()
92 class ZRoundup(Item, PropertyManager, Implicit, Persistent):
93 '''An instance of this class provides an interface between Zope and
94 roundup for one roundup instance
95 '''
96 meta_type = 'Z Roundup'
97 security = ClassSecurityInfo()
99 def __init__(self, id, instance_home):
100 self.id = id
101 self.instance_home = instance_home
103 # define the properties that define this object
104 _properties = (
105 {'id':'id', 'type': 'string', 'mode': 'w'},
106 {'id':'instance_home', 'type': 'string', 'mode': 'w'},
107 )
108 property_extensible_schema__ = 0
110 # define the tabs for the management interface
111 manage_options= PropertyManager.manage_options + (
112 {'label': 'View', 'action':'index_html'},
113 ) + Item.manage_options
115 icon = "misc_/ZRoundup/icon"
117 security.declarePrivate('roundup_opendb')
118 def roundup_opendb(self):
119 '''Open the roundup instance database for a transaction.
120 '''
121 instance = roundup.instance.open(self.instance_home)
122 request = RequestWrapper(self.REQUEST['RESPONSE'])
123 env = self.REQUEST.environ
125 # figure out the path components to set
126 url = urlparse.urlparse( self.absolute_url() )
127 path = url[2]
128 path_components = path.split( '/' )
130 # special case when roundup is '/' in this virtual host,
131 if path == "/" :
132 env['SCRIPT_NAME'] = "/"
133 env['TRACKER_NAME'] = ''
134 else :
135 # all but the last element is the path
136 env['SCRIPT_NAME'] = '/'.join( path_components[:-1] )
137 # the last element is the name
138 env['TRACKER_NAME'] = path_components[-1]
140 form = FormWrapper(self.REQUEST.form)
141 return instance.Client(instance, request, env, form)
143 security.declareProtected('View', 'index_html')
144 def index_html(self):
145 '''Alias index_html to roundup's index
146 '''
147 # Redirect misdirected requests -- bugs 558867 , 565992
148 # PATH_INFO, as defined by the CGI spec, has the *real* request path
149 orig_path = self.REQUEST.environ['PATH_INFO']
150 if orig_path[-1] != '/' :
151 url = urlparse.urlparse( self.absolute_url() )
152 url = list( url ) # make mutable
153 url[2] = url[2]+'/' # patch
154 url = urlparse.urlunparse( url ) # reassemble
155 RESPONSE = self.REQUEST.RESPONSE
156 RESPONSE.setStatus( "MovedPermanently" ) # 301
157 RESPONSE.setHeader( "Location" , url )
158 return RESPONSE
160 client = self.roundup_opendb()
161 # fake the path that roundup should use
162 client.split_path = ['index']
163 return client.main()
165 def __getitem__(self, item):
166 '''All other URL accesses are passed throuh to roundup
167 '''
168 return PathElement(self, item).__of__(self)
170 class PathElement(Item, Implicit):
171 def __init__(self, zr, path):
172 self.zr = zr
173 self.path = path
175 def __getitem__(self, item):
176 ''' Get a subitem.
177 '''
178 return PathElement(self.zr, self.path + '/' + item).__of__(self)
180 def index_html(self, REQUEST=None):
181 ''' Actually call through to roundup to handle the request.
182 '''
183 try:
184 client = self.zr.roundup_opendb()
185 # fake the path that roundup should use
186 client.path = self.path
187 # and call roundup to do something
188 client.main()
189 return ''
190 except NotFound:
191 raise 'NotFound', REQUEST.URL
192 pass
193 except:
194 import traceback
195 traceback.print_exc()
196 # all other exceptions in roundup are valid
197 raise
199 InitializeClass(ZRoundup)
200 modulesecurity.apply(globals())
203 # vim: set filetype=python ts=4 sw=4 et si