211 lines
8.9 KiB
Python
211 lines
8.9 KiB
Python
import ckan.lib.helpers as helpers
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import ckan.logic.auth as logic_auth
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import ckan.plugins as p
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import ckan.plugins.toolkit as tk
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import ckan.new_authz as new_authz
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from ckan.common import _, request
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######################################################################
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########################### AUTH FUNCTIONS ###########################
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######################################################################
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@tk.auth_allow_anonymous_access
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def package_show(context, data_dict):
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user = context.get('user')
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user_obj = context.get('auth_user_obj')
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package = logic_auth.get_package_object(context, data_dict)
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# datasets can be readed by it creator
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if package and user_obj and package.creator_user_id == user_obj.id:
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return {'success': True}
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# Not active packages can only be seen by its owners
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if package.state == 'active':
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# anyone can see a public package
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if not package.private:
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return {'success': True}
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# if the user has rights to read in the organization or in the group
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if package.owner_org:
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authorized = new_authz.has_user_permission_for_group_or_org(
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package.owner_org, user, 'read')
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else:
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authorized = False
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# if the user is not authorized yet, we should check if the
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# user is in the allowed_users object
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if not authorized:
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if hasattr(package, 'extras') and 'allowed_users' in package.extras:
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allowed_users = package.extras['allowed_users'].split(',')
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if user in allowed_users:
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authorized = True
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if not authorized:
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# Show a flash message with the URL to adquire the dataset
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# This message only can be shown when the user tries to access the dataset via its URL (/dataset/...)
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# The message cannot be displayed in other pages that uses the package_show function such as
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# the user profile page
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if hasattr(package, 'extras') and 'adquire_url' in package.extras and request.path.startswith('/dataset/'):
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helpers.flash_notice(_('This private dataset can be adquired. To do so, please click ' +
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'<a target="_blank" href="%s">here</a>') % package.extras['adquire_url'],
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allow_html=True)
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return {'success': False, 'msg': _('User %s not authorized to read package %s') % (user, package.id)}
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else:
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return {'success': True}
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else:
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return {'success': False, 'msg': _('User %s not authorized to read package %s') % (user, package.id)}
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def package_update(context, data_dict):
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user = context.get('user')
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user_obj = context.get('auth_user_obj')
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package = logic_auth.get_package_object(context, data_dict)
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# Only the package creator can update it
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if package and user_obj and package.creator_user_id == user_obj.id:
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return {'success': True}
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# if the user has rights to update a dataset in the organization or in the group
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if package and package.owner_org:
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authorized = new_authz.has_user_permission_for_group_or_org(
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package.owner_org, user, 'update_dataset')
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else:
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authorized = False
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if not authorized:
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return {'success': False, 'msg': _('User %s is not authorized to edit package %s') % (user, package.id)}
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else:
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return {'success': True}
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######################################################################
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############################### CHECKER ##############################
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######################################################################
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def private_datasets_metadata_checker(key, data, errors, context):
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# TODO: In some cases, we will need to retireve all the dataset information if it isn't present...
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private_val = data.get(('private',))
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owner_org = data.get(('owner_org',))
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private = private_val is True if isinstance(private_val, bool) else private_val == "True"
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metadata_value = data[key]
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# If allowed users are included and the dataset is not private outside and organization, an error will be raised.
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if metadata_value != '' and (not private or owner_org):
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errors[key].append(_('This field is only valid when you create a private dataset outside an organization'))
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class PrivateDatasets(p.SingletonPlugin, tk.DefaultDatasetForm):
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p.implements(p.IDatasetForm)
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p.implements(p.IAuthFunctions)
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p.implements(p.IConfigurer)
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p.implements(p.IRoutes, inherit=True)
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p.implements(p.IActions)
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######################################################################
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############################ DATASET FORM ############################
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######################################################################
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def _modify_package_schema(self):
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return {
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# remove datasets_with_no_organization_cannot_be_private validator
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'private': [tk.get_validator('ignore_missing'),
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tk.get_validator('boolean_validator')],
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'allowed_users': [tk.get_validator('ignore_missing'),
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private_datasets_metadata_checker,
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tk.get_converter('convert_to_extras')],
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'adquire_url': [tk.get_validator('ignore_missing'),
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private_datasets_metadata_checker,
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tk.get_converter('convert_to_extras')]
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}
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def create_package_schema(self):
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# grab the default schema in our plugin
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schema = super(PrivateDatasets, self).create_package_schema()
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schema.update(self._modify_package_schema())
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return schema
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def update_package_schema(self):
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# grab the default schema in our plugin
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schema = super(PrivateDatasets, self).update_package_schema()
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schema.update(self._modify_package_schema())
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return schema
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def show_package_schema(self):
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schema = super(PrivateDatasets, self).show_package_schema()
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schema.update({
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'allowed_users': [tk.get_converter('convert_from_extras'),
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tk.get_validator('ignore_missing')],
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'adquire_url': [tk.get_converter('convert_from_extras'),
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tk.get_validator('ignore_missing')]
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})
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return schema
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def is_fallback(self):
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# Return True to register this plugin as the default handler for
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# package types not handled by any other IDatasetForm plugin.
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return True
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def package_types(self):
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# This plugin doesn't handle any special package types, it just
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# registers itself as the default (above).
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return []
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######################################################################
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########################### AUTH FUNCTIONS ###########################
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######################################################################
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def get_auth_functions(self):
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return {'package_show': package_show,
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'package_update': package_update}
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######################################################################
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############################ ICONFIGURER #############################
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######################################################################
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def update_config(self, config):
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# Add this plugin's templates dir to CKAN's extra_template_paths, so
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# that CKAN will use this plugin's custom templates.
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tk.add_template_directory(config, 'templates')
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# Register this plugin's fanstatic directory with CKAN.
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tk.add_resource('fanstatic', 'privatedatasets')
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######################################################################
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############################### ROUTES ###############################
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######################################################################
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def after_map(self, m):
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# DataSet adquired notification
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m.connect('/dataset_adquired',
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controller='ckanext.privatedatasets.controller:AdquiredDatasetsController',
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action='add_user', conditions=dict(method=['POST']))
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return m
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######################################################################
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############################## IACTIONS ##############################
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######################################################################
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def get_actions(self):
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# Update package_show function. When the URL is the URL used to
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# check the datasets, the context parameter will me modified and
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# the field 'ignore_capacity_check' will be added in order to
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# get both the private and the public datasets.
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_old_package_search = tk.get_action('package_search')
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def _new_package_search(context, data_dict):
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if request.path == '/dataset':
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context.update({'ignore_capacity_check': True})
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return _old_package_search(context, data_dict)
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# Modify the package_show function used across the system
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return {'package_search': _new_package_search}
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