Files
cgrates/engine/reqfilter.go

96 lines
3.0 KiB
Go

/*
Real-time Charging System for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
package engine
import (
"strings"
"github.com/cgrates/cgrates/utils"
"github.com/cgrates/rpcclient"
)
const (
MetaStringPrefix = "*string_prefix"
MetaTiming = "*timing"
MetaRSRFilters = "*rsr_filters"
MetaCDRStats = "*cdr_stats"
MetaDestinations = "*destinations"
)
// RequestFilter filters requests coming into various places
type RequestFilter struct {
Type string // Filter type (*string, *timing, *rsr_filters, *cdr_stats)
FieldName string // Name of the field providing us the value to check
Values string // Filter definition
rsrFltrVals []*utils.RSRFilter // Cache here the RSRFilter values
cdrStats rpcclient.RpcClientConnection // Connection towards CDRStats service (eg: for *cdr_stats type)
}
func (fltr *RequestFilter) Pass(req interface{}, extraFieldsLabel string) (bool, error) {
switch fltr.Type {
case MetaStringPrefix:
return fltr.passStringPrefix(req, extraFieldsLabel)
case MetaTiming:
return fltr.passTiming(req, extraFieldsLabel)
case MetaDestinations:
return fltr.passDestinations(req, extraFieldsLabel)
case MetaRSRFilters:
return fltr.passRSRFilters(req, extraFieldsLabel)
case MetaCDRStats:
return fltr.passCDRStats(req, extraFieldsLabel)
default:
return false, utils.ErrNotImplemented
}
}
func (fltr *RequestFilter) passStringPrefix(req interface{}, extraFieldsLabel string) (bool, error) {
strVal, err := utils.ReflectFieldAsString(req, fltr.FieldName, extraFieldsLabel)
if err != nil {
return false, err
}
matchedPrefix := false
for _, prfx := range strings.Split(fltr.Values, utils.INFIELD_SEP) {
if strings.HasPrefix(strVal, prfx) {
matchedPrefix = true
break
}
}
return matchedPrefix, nil
}
// ToDo
func (fltr *RequestFilter) passTiming(req interface{}, extraFieldsLabel string) (bool, error) {
return false, utils.ErrNotImplemented
}
// ToDo
func (fltr *RequestFilter) passDestinations(req interface{}, extraFieldsLabel string) (bool, error) {
return false, utils.ErrNotImplemented
}
// ToDo
func (fltr *RequestFilter) passRSRFilters(req interface{}, extraFieldsLabel string) (bool, error) {
return false, utils.ErrNotImplemented
}
// ToDo
func (fltr *RequestFilter) passCDRStats(req interface{}, extraFieldsLabel string) (bool, error) {
return false, utils.ErrNotImplemented
}