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custom_field_validation.py
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custom_field_validation.py
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import logging
from bson import ObjectId
from datetime import datetime
from eve.io.mongo import Validator
from flask import current_app
log = logging.getLogger(__name__)
class ValidateCustomFields(Validator):
def convert_properties(self, properties, node_schema):
date_format = current_app.config['RFC1123_DATE_FORMAT']
for prop in node_schema:
if not prop in properties:
continue
schema_prop = node_schema[prop]
prop_type = schema_prop['type']
if prop_type == 'dict':
properties[prop] = self.convert_properties(
properties[prop], schema_prop['schema'])
if prop_type == 'list':
if properties[prop] in ['', '[]']:
properties[prop] = []
for k, val in enumerate(properties[prop]):
if not 'schema' in schema_prop:
continue
item_schema = {'item': schema_prop['schema']}
item_prop = {'item': properties[prop][k]}
properties[prop][k] = self.convert_properties(
item_prop, item_schema)['item']
# Convert datetime string to RFC1123 datetime
elif prop_type == 'datetime':
prop_val = properties[prop]
properties[prop] = datetime.strptime(prop_val, date_format)
elif prop_type == 'objectid':
prop_val = properties[prop]
if prop_val:
properties[prop] = ObjectId(prop_val)
else:
properties[prop] = None
return properties
def _validate_valid_properties(self, valid_properties, field, value):
from pillar.api.utils import project_get_node_type
projects_collection = current_app.data.driver.db['projects']
lookup = {'_id': ObjectId(self.document['project'])}
project = projects_collection.find_one(lookup, {
'node_types.name': 1,
'node_types.dyn_schema': 1,
})
if project is None:
log.warning('Unknown project %s, declared by node %s',
lookup, self.document.get('_id'))
self._error(field, 'Unknown project')
return False
node_type_name = self.document['node_type']
node_type = project_get_node_type(project, node_type_name)
if node_type is None:
log.warning('Project %s has no node type %s, declared by node %s',
project, node_type_name, self.document.get('_id'))
self._error(field, 'Unknown node type')
return False
try:
value = self.convert_properties(value, node_type['dyn_schema'])
except Exception as e:
log.warning("Error converting form properties", exc_info=True)
v = Validator(node_type['dyn_schema'])
val = v.validate(value)
if val:
return True
log.warning('Error validating properties for node %s: %s', self.document, v.errors)
self._error(field, "Error validating properties")

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