+require 'safe_json'
+
class Arvados::V1::ApiClientAuthorizationsController < ApplicationController
accept_attribute_as_json :scopes, Array
- before_filter :current_api_client_is_trusted
+ before_filter :current_api_client_is_trusted, :except => [:current]
before_filter :admin_required, :only => :create_system_auth
- skip_before_filter :render_404_if_no_object, :only => :create_system_auth
+ skip_before_filter :render_404_if_no_object, :only => [:create_system_auth, :current]
+ skip_before_filter :find_object_by_uuid, :only => [:create_system_auth, :current]
def self._create_system_auth_requires_parameters
{
new(user_id: system_user.id,
api_client_id: params[:api_client_id] || current_api_client.andand.id,
created_by_ip_address: remote_ip,
- scopes: Oj.load(params[:scopes] || '["all"]'))
+ scopes: SafeJSON.load(params[:scopes] || '["all"]'))
@object.save!
show
end
super
end
+ def current
+ @object = Thread.current[:api_client_authorization]
+ show
+ end
+
protected
def default_orders
def find_objects_for_index
# Here we are deliberately less helpful about searching for client
# authorizations. We look up tokens belonging to the current user
- # and filter by exact matches on api_token and scopes.
+ # and filter by exact matches on uuid, api_token, and scopes.
wanted_scopes = []
if @filters
wanted_scopes.concat(@filters.map { |attr, operator, operand|
((attr == 'scopes') and (operator == '=')) ? operand : nil
})
@filters.select! { |attr, operator, operand|
- (attr == 'uuid') and (operator == '=')
+ operator == '=' && (attr == 'uuid' || attr == 'api_token')
}
end
if @where
wanted_scopes << @where['scopes']
- @where.select! { |attr, val| attr == 'uuid' }
+ @where.select! { |attr, val|
+ # "where":{"uuid":"zzzzz-zzzzz-zzzzzzzzzzzzzzz"} is OK but
+ # "where":{"api_client_id":1} is not supported
+ # "where":{"uuid":["contains","-"]} is not supported
+ # "where":{"uuid":["uuid1","uuid2","uuid3"]} is not supported
+ val.is_a?(String) && (attr == 'uuid' || attr == 'api_token')
+ }
end
- @objects = model_class.
- includes(:user, :api_client).
- where('user_id=?', current_user.id)
- super
- wanted_scopes.compact.each do |scope_list|
- sorted_scopes = scope_list.sort
- @objects = @objects.select { |auth| auth.scopes.sort == sorted_scopes }
+ @objects = model_class.where('user_id=?', current_user.id)
+ if wanted_scopes.compact.any?
+ # We can't filter on scopes effectively using AR/postgres.
+ # Instead we get the entire result set, do our own filtering on
+ # scopes to get a list of UUIDs, then start a new query
+ # (restricted to the selected UUIDs) so super can apply the
+ # offset/limit/order params in the usual way.
+ @request_limit = @limit
+ @request_offset = @offset
+ @limit = @objects.count
+ @offset = 0
+ super
+ wanted_scopes.compact.each do |scope_list|
+ sorted_scopes = scope_list.sort
+ @objects = @objects.select { |auth| auth.scopes.sort == sorted_scopes }
+ end
+ @limit = @request_limit
+ @offset = @request_offset
+ @objects = model_class.where('uuid in (?)', @objects.collect(&:uuid))
end
+ super
end
def find_object_by_uuid
- # Again, to make things easier for the client and our own routing,
- # here we look for the api_token key in a "uuid" (POST) or "id"
- # (GET) parameter.
- @object = model_class.where('api_token=?', params[:uuid] || params[:id]).first
+ uuid_param = params[:uuid] || params[:id]
+ if (uuid_param != current_api_client_authorization.andand.uuid and
+ not Thread.current[:api_client].andand.is_trusted)
+ return forbidden
+ end
+ @limit = 1
+ @offset = 0
+ @orders = []
+ @where = {}
+ @filters = [['uuid', '=', uuid_param]]
+ find_objects_for_index
+ @object = @objects.first
end
def current_api_client_is_trusted
- unless Thread.current[:api_client].andand.is_trusted
- send_error('Forbidden: this API client cannot manipulate other clients\' access tokens.',
- status: 403)
+ if Thread.current[:api_client].andand.is_trusted
+ return true
+ end
+ # A non-trusted client can do a search for its own token if it
+ # explicitly restricts the search to its own UUID or api_token.
+ # Any other kind of query must return 403, even if it matches only
+ # the current token, because that's currently how Workbench knows
+ # (after searching on scopes) the difference between "the token
+ # I'm using now *is* the only sharing token for this collection"
+ # (403) and "my token is trusted, and there is one sharing token
+ # for this collection" (200).
+ #
+ # The @filters test here also prevents a non-trusted token from
+ # filtering on its own scopes, and discovering whether any _other_
+ # equally scoped tokens exist (403=yes, 200=no).
+ return forbidden if !@objects
+ full_set = @objects.except(:limit).except(:offset) if @objects
+ if (full_set.count == 1 and
+ full_set.first.uuid == current_api_client_authorization.andand.uuid and
+ (@filters.map(&:first) & %w(uuid api_token)).any?)
+ return true
end
+ forbidden
+ end
+
+ def forbidden
+ send_error('Forbidden: this API client cannot manipulate other clients\' access tokens.',
+ status: 403)
end
end