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% Licensed under the Apache License, Version 2.0 (the "License"); you may not
% use this file except in compliance with the License. You may obtain a copy of
% the License at
%
% http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
% License for the specific language governing permissions and limitations under
% the License.
-define(AUTH_DB_DOC_VALIDATE_FUNCTION, <<"
function(newDoc, oldDoc, userCtx) {
if (newDoc._deleted === true) {
// allow deletes by admins and matching users
// without checking the other fields
if ((userCtx.roles.indexOf('_admin') !== -1) ||
(userCtx.name == oldDoc.name)) {
return;
} else {
throw({forbidden: 'Only admins may delete other user docs.'});
}
}
if ((oldDoc && oldDoc.type !== 'user') || newDoc.type !== 'user') {
throw({forbidden : 'doc.type must be user'});
} // we only allow user docs for now
if (!newDoc.name) {
throw({forbidden: 'doc.name is required'});
}
if (newDoc.roles && !isArray(newDoc.roles)) {
throw({forbidden: 'doc.roles must be an array'});
}
if (newDoc._id !== ('org.couchdb.user:' + newDoc.name)) {
throw({
forbidden: 'Doc ID must be of the form org.couchdb.user:name'
});
}
if (oldDoc) { // validate all updates
if (oldDoc.name !== newDoc.name) {
throw({forbidden: 'Usernames can not be changed.'});
}
}
if (newDoc.password_sha && !newDoc.salt) {
throw({
forbidden: 'Users with password_sha must have a salt.' +
'See /_utils/script/couch.js for example code.'
});
}
if (userCtx.roles.indexOf('_admin') === -1) {
if (oldDoc) { // validate non-admin updates
if (userCtx.name !== newDoc.name) {
throw({
forbidden: 'You may only update your own user document.'
});
}
// validate role updates
var oldRoles = oldDoc.roles.sort();
var newRoles = newDoc.roles.sort();
if (oldRoles.length !== newRoles.length) {
throw({forbidden: 'Only _admin may edit roles'});
}
for (var i = 0; i < oldRoles.length; i++) {
if (oldRoles[i] !== newRoles[i]) {
throw({forbidden: 'Only _admin may edit roles'});
}
}
} else if (newDoc.roles.length > 0) {
throw({forbidden: 'Only _admin may set roles'});
}
}
// no system roles in users db
for (var i = 0; i < newDoc.roles.length; i++) {
if (newDoc.roles[i][0] === '_') {
throw({
forbidden:
'No system roles (starting with underscore) in users db.'
});
}
}
// no system names as names
if (newDoc.name[0] === '_') {
throw({forbidden: 'Username may not start with underscore.'});
}
}
">>).
-define(REP_DB_DOC_VALIDATE_FUN, <<"
function(newDoc, oldDoc, userCtx) {
function reportError(error_msg) {
log('Error writing document `' + newDoc._id +
'` to replicator DB: ' + error_msg);
throw({forbidden: error_msg});
}
var isReplicator = (userCtx.roles.indexOf('_replicator') >= 0);
if (oldDoc && !newDoc._deleted && !isReplicator) {
reportError('Only the replicator can edit replication documents.');
}
if (newDoc.user_ctx) {
var user_ctx = newDoc.user_ctx;
if (typeof user_ctx !== 'object') {
reportError('The user_ctx property must be an object.');
}
if (!(user_ctx.name === null ||
(typeof user_ctx.name === 'undefined') ||
((typeof user_ctx.name === 'string') &&
user_ctx.name.length > 0))) {
reportError('The name property of the user_ctx must be a ' +
'non-empty string.');
}
if (user_ctx.roles && !isArray(user_ctx.roles)) {
reportError('The roles property of the user_ctx must be ' +
'an array of strings.');
}
if (user_ctx.roles) {
for (var i = 0; i < user_ctx.roles.length; i++) {
var role = user_ctx.roles[i];
if (typeof role !== 'string' || role.length === 0) {
reportError('Each role must be a non-empty string.');
}
if (role[0] === '_') {
reportError('System roles (starting with underscore) ' +
'are not allowed.');
}
}
}
}
}
">>).
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