Mercurial > p > roundup > code

annotate frontends/ZRoundup/ZRoundup.py @ 2929:7a8a02646d4e

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backend is an attribute of tracker instances
author Alexander Smishlajev <a1s@users.sourceforge.net>
date Thu, 18 Nov 2004 16:23:58 +0000
parents 908c27314abf
children 49aa59c581c7 65bc031c4464
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1 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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2 # This module is free software, and you may redistribute it and/or modify
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3 # under the same terms as Python, so long as this copyright message and
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4 # disclaimer are retained in their original form.
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5 #
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6 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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7 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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8 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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9 # POSSIBILITY OF SUCH DAMAGE.
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10 #
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11 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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12 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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13 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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14 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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15 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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16 #
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17 # $Id: ZRoundup.py,v 1.20 2004-11-05 04:42:45 richard Exp $
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18 #
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19 ''' ZRoundup module - exposes the roundup web interface to Zope
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20
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21 This frontend works by providing a thin layer that sits between Zope and the
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22 regular CGI interface of roundup, providing the web frontend with the minimum
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23 of effort.
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24
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25 This means that the regular CGI interface does all authentication quite
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26 independently of Zope. The roundup code is kept in memory though, and it
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27 runs in the same server as all your other Zope stuff, so it does have _some_
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28 advantages over regular CGI :)
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29 '''
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30
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31 import urlparse
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32
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33 from Globals import InitializeClass, HTMLFile
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34 from OFS.SimpleItem import Item
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35 from OFS.PropertyManager import PropertyManager
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36 from Acquisition import Explicit, Implicit
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37 from Persistence import Persistent
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38 from AccessControl import ClassSecurityInfo
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39 from AccessControl import ModuleSecurityInfo
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40 modulesecurity = ModuleSecurityInfo()
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41
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42 import roundup.instance
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43 from roundup.cgi import client
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44
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45 modulesecurity.declareProtected('View management screens',
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46 'manage_addZRoundupForm')
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47 manage_addZRoundupForm = HTMLFile('dtml/manage_addZRoundupForm', globals())
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48
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49 modulesecurity.declareProtected('Add Z Roundups', 'manage_addZRoundup')
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50 def manage_addZRoundup(self, id, instance_home, REQUEST):
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51 """Add a ZRoundup product """
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52 # validate the instance_home
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53 roundup.instance.open(instance_home)
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54 self._setObject(id, ZRoundup(id, instance_home))
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55 return self.manage_main(self, REQUEST)
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56
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57 class RequestWrapper:
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58 '''Make the Zope RESPONSE look like a BaseHTTPServer
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59 '''
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60 def __init__(self, RESPONSE):
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61 self.RESPONSE = RESPONSE
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62 self.wfile = self.RESPONSE
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63 def send_response(self, status):
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64 self.RESPONSE.setStatus(status)
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65 def send_header(self, header, value):
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66 self.RESPONSE.addHeader(header, value)
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67 def end_headers(self):
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68 # not needed - the RESPONSE object handles this internally on write()
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69 pass
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70
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71 class FormItem:
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72 '''Make a Zope form item look like a cgi.py one
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73 '''
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74 def __init__(self, value):
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75 self.value = value
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76 if hasattr(self.value, 'filename'):
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77 self.filename = self.value.filename
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78 self.value = self.value.read()
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79
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80 class FormWrapper:
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81 '''Make a Zope form dict look like a cgi.py one
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82 '''
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83 def __init__(self, form):
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84 self.form = form
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85 def __getitem__(self, item):
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86 entry = self.form[item]
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87 if isinstance(entry, type([])):
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88 entry = map(FormItem, entry)
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89 else:
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90 entry = FormItem(entry)
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91 return entry
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92 def getvalue(self, key, default=None):
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93 if self.form.has_key(key):
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94 return self.form[key]
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95 else:
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96 return default
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97 def has_key(self, item):
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98 return self.form.has_key(item)
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99 def keys(self):
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100 return self.form.keys():
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101
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102 class ZRoundup(Item, PropertyManager, Implicit, Persistent):
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103 '''An instance of this class provides an interface between Zope and
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104 roundup for one roundup instance
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105 '''
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106 meta_type = 'Z Roundup'
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107 security = ClassSecurityInfo()
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108
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109 def __init__(self, id, instance_home):
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110 self.id = id
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111 self.instance_home = instance_home
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112
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113 # define the properties that define this object
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114 _properties = (
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115 {'id':'id', 'type': 'string', 'mode': 'w'},
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116 {'id':'instance_home', 'type': 'string', 'mode': 'w'},
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117 )
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118 property_extensible_schema__ = 0
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119
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120 # define the tabs for the management interface
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121 manage_options= PropertyManager.manage_options + (
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122 {'label': 'View', 'action':'index_html'},
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123 ) + Item.manage_options
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124
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125 icon = "misc_/ZRoundup/icon"
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126
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127 security.declarePrivate('roundup_opendb')
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128 def roundup_opendb(self):
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129 '''Open the roundup instance database for a transaction.
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130 '''
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131 tracker = roundup.instance.open(self.instance_home)
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132 request = RequestWrapper(self.REQUEST['RESPONSE'])
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133 env = self.REQUEST.environ
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134
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135 # figure out the path components to set
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136 url = urlparse.urlparse( self.absolute_url() )
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137 path = url[2]
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138 path_components = path.split( '/' )
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139
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140 # special case when roundup is '/' in this virtual host,
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141 if path == "/" :
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142 env['SCRIPT_NAME'] = "/"
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143 env['TRACKER_NAME'] = ''
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144 else :
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145 # all but the last element is the path
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146 env['SCRIPT_NAME'] = '/'.join( path_components[:-1] )
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147 # the last element is the name
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148 env['TRACKER_NAME'] = path_components[-1]
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149
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150 form = FormWrapper(self.REQUEST.form)
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151 if hasattr(tracker, 'Client'):
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152 return tracker.Client(tracker, request, env, form)
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153 return client.Client(tracker, request, env, form)
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154
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155 security.declareProtected('View', 'index_html')
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156 def index_html(self):
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157 '''Alias index_html to roundup's index
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158 '''
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159 # Redirect misdirected requests -- bugs 558867 , 565992
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160 # PATH_INFO, as defined by the CGI spec, has the *real* request path
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161 orig_path = self.REQUEST.environ['PATH_INFO']
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162 if orig_path[-1] != '/' :
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163 url = urlparse.urlparse( self.absolute_url() )
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164 url = list( url ) # make mutable
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165 url[2] = url[2]+'/' # patch
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166 url = urlparse.urlunparse( url ) # reassemble
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167 RESPONSE = self.REQUEST.RESPONSE
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168 RESPONSE.setStatus( "MovedPermanently" ) # 301
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169 RESPONSE.setHeader( "Location" , url )
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170 return RESPONSE
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171
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172 client = self.roundup_opendb()
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173 # fake the path that roundup should use
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174 client.split_path = ['index']
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175 return client.main()
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176
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177 def __getitem__(self, item):
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178 '''All other URL accesses are passed throuh to roundup
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179 '''
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180 return PathElement(self, item).__of__(self)
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181
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182 class PathElement(Item, Implicit):
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183 def __init__(self, zr, path):
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184 self.zr = zr
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185 self.path = path
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186
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187 def __getitem__(self, item):
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188 ''' Get a subitem.
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189 '''
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190 return PathElement(self.zr, self.path + '/' + item).__of__(self)
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191
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192 def index_html(self, REQUEST=None):
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193 ''' Actually call through to roundup to handle the request.
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194 '''
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195 try:
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196 client = self.zr.roundup_opendb()
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197 # fake the path that roundup should use
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198 client.path = self.path
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199 # and call roundup to do something
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200 client.main()
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201 return ''
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202 except client.NotFound:
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203 raise 'NotFound', REQUEST.URL
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204 pass
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205 except:
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206 import traceback
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207 traceback.print_exc()
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208 # all other exceptions in roundup are valid
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209 raise
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210
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211 InitializeClass(ZRoundup)
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212 modulesecurity.apply(globals())
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213
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214
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215 # vim: set filetype=python ts=4 sw=4 et si
Roundup Issue Tracker: http://roundup-tracker.org/