ipsilon/admin/common.py

   1 #!/usr/bin/python
   2 #
   3 # Copyright (C) 2014  Simo Sorce <simo@redhat.com>
   4 #
   5 # see file 'COPYING' for use and warranty information
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 import cherrypy
  21 from ipsilon.util.page import Page
  22 from ipsilon.util.page import admin_protect
  23 from ipsilon.util.plugin import PluginObject
  24
  25
  26 class AdminPage(Page):
  27
  28     def __init__(self, *args, **kwargs):
  29         super(AdminPage, self).__init__(*args, **kwargs)
  30         self.default_headers.update({
  31             'Cache-Control': 'no-cache, must-revalidate',
  32             'Pragma': 'no-cache',
  33             'Expires': 'Thu, 01 Dec 1994 16:00:00 GMT',
  34         })
  35         self.auth_protect = True
  36
  37
  38 class AdminPluginConfig(AdminPage):
  39
  40     def __init__(self, po, site, parent):
  41         super(AdminPluginConfig, self).__init__(site, form=True)
  42         self._po = po
  43         self.title = '%s plugin' % po.name
  44         self.url = '%s/%s' % (parent.url, po.name)
  45         self.facility = parent.facility
  46         self.menu = [parent]
  47         self.back = parent.url
  48
  49         # Get the defaults
  50         options = po.get_config_desc()
  51         if options is None:
  52             options = dict()
  53
  54         self.options_order = []
  55         if hasattr(po, 'conf_opt_order'):
  56             self.options_order = po.conf_opt_order
  57
  58         # append any undefined options
  59         add = []
  60         for k in options.keys():
  61             if k not in self.options_order:
  62                 add.append(k)
  63         if len(add):
  64             add.sort()
  65             for k in add:
  66                 self.options_order.append(k)
  67
  68     @admin_protect
  69     def GET(self, *args, **kwargs):
  70         return self._template('admin/plugin_config.html', title=self.title,
  71                               name='admin_%s_%s_form' % (self.facility,
  72                                                          self._po.name),
  73                               menu=self.menu, action=self.url, back=self.back,
  74                               options_order=self.options_order,
  75                               plugin=self._po)
  76
  77     @admin_protect
  78     def POST(self, *args, **kwargs):
  79
  80         message = "Nothing was modified."
  81         message_type = "info"
  82         new_values = dict()
  83
  84         # Get the defaults
  85         options = self._po.get_config_desc()
  86         if options is None:
  87             options = dict()
  88
  89         for key, value in kwargs.iteritems():
  90             if key in options:
  91                 if value != self._po.get_config_value(key):
  92                     cherrypy.log.error("Storing [%s]: %s = %s" %
  93                                        (self._po.name, key, value))
  94                     new_values[key] = value
  95
  96         if len(new_values) != 0:
  97             # First we try to save in the database
  98             try:
  99                 self._po.save_plugin_config(self.facility, new_values)
 100                 message = "New configuration saved."
 101                 message_type = "success"
 102             except Exception:  # pylint: disable=broad-except
 103                 message = "Failed to save data!"
 104                 message_type = "error"
 105
 106             # And only if it succeeds we change the live object
 107             self._po.refresh_plugin_config(self.facility)
 108
 109         return self._template('admin/plugin_config.html', title=self.title,
 110                               message=message,
 111                               message_type=message_type,
 112                               name='admin_%s_%s_form' % (self.facility,
 113                                                          self._po.name),
 114                               menu=self.menu, action=self.url,
 115                               plugin=self._po)
 116
 117
 118 class AdminPluginsOrder(AdminPage):
 119
 120     def __init__(self, site, parent, facility):
 121         super(AdminPluginsOrder, self).__init__(site, form=True)
 122         self.parent = parent
 123         self.facility = facility
 124         self.url = '%s/order' % parent.url
 125         self.menu = [parent]
 126
 127     @admin_protect
 128     def GET(self, *args, **kwargs):
 129         return self.parent.root_with_msg()
 130
 131     @admin_protect
 132     def POST(self, *args, **kwargs):
 133         message = "Nothing was modified."
 134         message_type = "info"
 135         by_name = {p.name: p for p in self._site[self.facility]['enabled']}
 136
 137         if 'order' in kwargs:
 138             order = kwargs['order'].split(',')
 139             if len(order) != 0:
 140                 new_names = []
 141                 new_plugins = []
 142                 try:
 143                     for v in order:
 144                         val = v.strip()
 145                         if val not in by_name:
 146                             error = "Invalid plugin name: %s" % val
 147                             raise ValueError(error)
 148                         new_names.append(val)
 149                         new_plugins.append(by_name[val])
 150                     if len(new_names) < len(by_name):
 151                         for val in by_name:
 152                             if val not in new_names:
 153                                 new_names.append(val)
 154                                 new_plugins.append(by_name[val])
 155
 156                     self.parent.save_enabled_plugins(new_names)
 157                     self.parent.reorder_plugins(new_names)
 158
 159                     # When all is saved update also live config. The
 160                     # live config is a list of the actual plugin
 161                     # objects.
 162                     self._site[self.facility]['enabled'] = new_plugins
 163
 164                     message = "New configuration saved."
 165                     message_type = "success"
 166
 167                 except ValueError, e:
 168                     message = str(e)
 169                     message_type = "error"
 170
 171                 except Exception, e:  # pylint: disable=broad-except
 172                     message = "Failed to save data!"
 173                     message_type = "error"
 174
 175         return self.parent.root_with_msg(message=message,
 176                                          message_type=message_type)
 177
 178
 179 class AdminPlugins(AdminPage):
 180     def __init__(self, name, site, parent, facility, ordered=True):
 181         super(AdminPlugins, self).__init__(site)
 182         self._master = parent
 183         self.name = name
 184         self.title = '%s plugins' % name
 185         self.url = '%s/%s' % (parent.url, name)
 186         self.facility = facility
 187         self.template = 'admin/plugins.html'
 188         self.order = None
 189         parent.add_subtree(name, self)
 190
 191         for plugin in self._site[facility]['available']:
 192             cherrypy.log.error('Admin info plugin: %s' % plugin)
 193             obj = self._site[facility]['available'][plugin]
 194             page = AdminPluginConfig(obj, self._site, self)
 195             if hasattr(obj, 'admin'):
 196                 obj.admin.mount(page)
 197             self.add_subtree(plugin, page)
 198
 199         if ordered:
 200             self.order = AdminPluginsOrder(self._site, self, facility)
 201
 202     def save_enabled_plugins(self, names):
 203         po = PluginObject()
 204         po.name = "global"
 205         globalconf = dict()
 206         globalconf['order'] = ','.join(names)
 207         po.set_config(globalconf)
 208         po.save_plugin_config(self.facility)
 209
 210     def reorder_plugins(self, names):
 211         return
 212
 213     def root_with_msg(self, message=None, message_type=None):
 214         plugins = self._site[self.facility]
 215         enabled = []
 216         if self.order:
 217             for plugin in plugins['enabled']:
 218                 enabled.append(plugin.name)
 219         else:
 220             for _, plugin in plugins['available'].iteritems():
 221                 if plugin.is_enabled:
 222                     enabled.append(plugin.name)
 223
 224         targs = {'title': self.title,
 225                  'menu': self._master.menu,
 226                  'message': message,
 227                  'message_type': message_type,
 228                  'available': plugins['available'],
 229                  'enabled': enabled,
 230                  'baseurl': self.url}
 231         if self.order:
 232             targs['order_name'] = '%s_order_form' % self.name
 233             targs['order_action'] = self.order.url
 234
 235         # pylint: disable=star-args
 236         return self._template(self.template, **targs)
 237
 238     def root(self, *args, **kwargs):
 239         return self.root_with_msg()
 240
 241     @admin_protect
 242     def enable(self, plugin):
 243         msg = None
 244         plugins = self._site[self.facility]
 245         if plugin not in plugins['available']:
 246             msg = "Unknown plugin %s" % plugin
 247             return self.root_with_msg(msg, "error")
 248         obj = plugins['available'][plugin]
 249         if not obj.is_enabled:
 250             obj.enable(self._site)
 251             if self.order:
 252                 enabled = list(x.name for x in plugins['enabled'])
 253                 self.save_enabled_plugins(enabled)
 254             msg = "Plugin %s enabled" % obj.name
 255         return self.root_with_msg(msg, "success")
 256     enable.public_function = True
 257
 258     @admin_protect
 259     def disable(self, plugin):
 260         msg = None
 261         plugins = self._site[self.facility]
 262         if plugin not in plugins['available']:
 263             msg = "Unknown plugin %s" % plugin
 264             return self.root_with_msg(msg, "error")
 265         obj = plugins['available'][plugin]
 266         if obj.is_enabled:
 267             obj.disable(self._site)
 268             if self.order:
 269                 enabled = list(x.name for x in plugins['enabled'])
 270                 self.save_enabled_plugins(enabled)
 271             msg = "Plugin %s disabled" % obj.name
 272         return self.root_with_msg(msg, "success")
 273     disable.public_function = True
 274
 275
 276 class Admin(AdminPage):
 277
 278     def __init__(self, site, mount):
 279         super(Admin, self).__init__(site)
 280         self.url = '%s/%s' % (self.basepath, mount)
 281         self.menu = []
 282
 283     def root(self, *args, **kwargs):
 284         return self._template('admin/index.html',
 285                               title='Configuration',
 286                               menu=self.menu)
 287
 288     def add_subtree(self, name, page):
 289         self.__dict__[name] = page
 290         self.menu.append(page)
 291
 292     def del_subtree(self, name):
 293         self.menu.remove(self.__dict__[name])
 294         del self.__dict__[name]