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https://github.com/cgrates/cgrates.git
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588 lines
18 KiB
Go
588 lines
18 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package engine
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import (
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"errors"
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"reflect"
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"runtime"
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"strings"
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"time"
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"github.com/cgrates/cgrates/cache"
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"github.com/cgrates/cgrates/config"
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"github.com/cgrates/cgrates/guardian"
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"github.com/cgrates/cgrates/utils"
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"github.com/cgrates/rpcclient"
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)
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// Individual session run
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type SessionRun struct {
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DerivedCharger *utils.DerivedCharger // Needed in reply
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CallDescriptor *CallDescriptor
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CallCosts []*CallCost
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}
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type AttrGetLcr struct {
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*CallDescriptor
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*LCRFilter
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*utils.Paginator
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}
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type Responder struct {
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ExitChan chan bool
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Stats rpcclient.RpcClientConnection
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Timeout time.Duration
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Timezone string
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cnt int64
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responseCache *cache.ResponseCache
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}
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func (rs *Responder) SetTimeToLive(timeToLive time.Duration, out *int) error {
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rs.responseCache = cache.NewResponseCache(timeToLive)
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return nil
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}
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func (rs *Responder) getCache() *cache.ResponseCache {
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if rs.responseCache == nil {
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rs.responseCache = cache.NewResponseCache(0)
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}
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return rs.responseCache
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}
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/*
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RPC method thet provides the external RPC interface for getting the rating information.
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*/
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func (rs *Responder) GetCost(arg *CallDescriptor, reply *CallCost) (err error) {
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rs.cnt += 1
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if arg.Subject == "" {
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arg.Subject = arg.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(arg, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: arg.Destination,
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Direction: arg.Direction,
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Tenant: arg.Tenant,
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Category: arg.Category,
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Account: arg.Account,
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Subject: arg.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, arg, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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return err
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}
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r, e := guardian.Guardian.Guard(func() (interface{}, error) {
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return arg.GetCost()
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}, 0, arg.GetAccountKey())
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if r != nil {
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*reply = *r.(*CallCost)
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}
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if e != nil {
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return e
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}
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return
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}
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func (rs *Responder) Debit(arg *CallDescriptor, reply *CallCost) (err error) {
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if arg.Subject == "" {
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arg.Subject = arg.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(arg, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: arg.Destination,
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Direction: arg.Direction,
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Tenant: arg.Tenant,
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Category: arg.Category,
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Account: arg.Account,
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Subject: arg.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, arg, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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return err
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}
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r, e := arg.Debit()
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if e != nil {
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return e
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} else if r != nil {
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*reply = *r
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}
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return
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}
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func (rs *Responder) MaxDebit(arg *CallDescriptor, reply *CallCost) (err error) {
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cacheKey := utils.MAX_DEBIT_CACHE_PREFIX + arg.CgrID + arg.RunID + arg.DurationIndex.String()
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if item, err := rs.getCache().Get(cacheKey); err == nil && item != nil {
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if item.Value != nil {
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*reply = *(item.Value.(*CallCost))
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}
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return item.Err
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}
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if arg.Subject == "" {
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arg.Subject = arg.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(arg, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: arg.Destination,
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Direction: arg.Direction,
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Tenant: arg.Tenant,
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Category: arg.Category,
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Account: arg.Account,
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Subject: arg.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, arg, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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return err
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}
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r, e := arg.MaxDebit()
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if e != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Err: e,
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})
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return e
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} else if r != nil {
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*reply = *r
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}
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Value: reply,
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Err: err,
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})
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return
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}
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func (rs *Responder) RefundIncrements(arg *CallDescriptor, reply *float64) (err error) {
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cacheKey := utils.REFUND_INCR_CACHE_PREFIX + arg.CgrID + arg.RunID
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if item, err := rs.getCache().Get(cacheKey); err == nil && item != nil {
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if item.Value != nil {
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*reply = *(item.Value.(*float64))
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}
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return item.Err
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}
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if arg.Subject == "" {
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arg.Subject = arg.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(arg, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: arg.Destination,
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Direction: arg.Direction,
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Tenant: arg.Tenant,
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Category: arg.Category,
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Account: arg.Account,
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Subject: arg.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, arg, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Err: err,
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})
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return err
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}
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err = arg.RefundIncrements()
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Value: reply,
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Err: err,
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})
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return
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}
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func (rs *Responder) RefundRounding(arg *CallDescriptor, reply *float64) (err error) {
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cacheKey := utils.REFUND_ROUND_CACHE_PREFIX + arg.CgrID + arg.RunID + arg.DurationIndex.String()
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if item, err := rs.getCache().Get(cacheKey); err == nil && item != nil {
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if item.Value != nil {
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*reply = *(item.Value.(*float64))
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}
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return item.Err
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}
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if arg.Subject == "" {
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arg.Subject = arg.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(arg, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: arg.Destination,
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Direction: arg.Direction,
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Tenant: arg.Tenant,
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Category: arg.Category,
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Account: arg.Account,
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Subject: arg.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, arg, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Err: err,
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})
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return err
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}
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err = arg.RefundRounding()
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Value: reply,
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Err: err,
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})
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return
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}
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func (rs *Responder) GetMaxSessionTime(arg *CallDescriptor, reply *float64) (err error) {
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if arg.Subject == "" {
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arg.Subject = arg.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(arg, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: arg.Destination,
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Direction: arg.Direction,
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Tenant: arg.Tenant,
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Category: arg.Category,
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Account: arg.Account,
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Subject: arg.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, arg, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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return err
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}
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r, e := arg.GetMaxSessionDuration()
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*reply, err = float64(r), e
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return
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}
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// Returns MaxSessionTime for an event received in SessionManager, considering DerivedCharging for it
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func (rs *Responder) GetDerivedMaxSessionTime(ev *CDR, reply *float64) error {
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cacheKey := utils.GET_DERIV_MAX_SESS_TIME + ev.CGRID + ev.RunID
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if item, err := rs.getCache().Get(cacheKey); err == nil && item != nil {
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if item.Value != nil {
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*reply = *(item.Value.(*float64))
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}
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return item.Err
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}
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if ev.Subject == "" {
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ev.Subject = ev.Account
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}
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// replace user profile fields
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if err := LoadUserProfile(ev, utils.EXTRA_FIELDS); err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: ev.Destination,
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Direction: ev.Direction,
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Tenant: ev.Tenant,
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Category: ev.Category,
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Account: ev.Account,
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Subject: ev.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, ev, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return err
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}
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maxCallDuration := -1.0
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attrsDC := &utils.AttrDerivedChargers{Tenant: ev.GetTenant(utils.META_DEFAULT), Category: ev.GetCategory(utils.META_DEFAULT), Direction: ev.GetDirection(utils.META_DEFAULT),
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Account: ev.GetAccount(utils.META_DEFAULT), Subject: ev.GetSubject(utils.META_DEFAULT)}
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dcs := &utils.DerivedChargers{}
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if err := rs.GetDerivedChargers(attrsDC, dcs); err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return err
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}
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dcs, _ = dcs.AppendDefaultRun()
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for _, dc := range dcs.Chargers {
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if utils.IsSliceMember([]string{utils.META_RATED, utils.RATED}, ev.GetReqType(dc.RequestTypeField)) { // Only consider prepaid and pseudoprepaid for MaxSessionTime
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continue
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}
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runFilters, _ := utils.ParseRSRFields(dc.RunFilters, utils.INFIELD_SEP)
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matchingAllFilters := true
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for _, dcRunFilter := range runFilters {
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if !dcRunFilter.FilterPasses(ev.FieldAsString(dcRunFilter)) {
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matchingAllFilters = false
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break
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}
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}
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if !matchingAllFilters { // Do not process the derived charger further if not all filters were matched
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continue
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}
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startTime, err := ev.GetSetupTime(utils.META_DEFAULT, rs.Timezone)
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if err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return err
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}
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usage, err := ev.GetDuration(utils.META_DEFAULT)
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if err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return err
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}
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if usage == 0 {
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usage = config.CgrConfig().MaxCallDuration
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}
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cd := &CallDescriptor{
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CgrID: ev.GetCgrId(rs.Timezone),
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RunID: dc.RunID,
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TOR: ev.ToR,
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Direction: ev.GetDirection(dc.DirectionField),
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Tenant: ev.GetTenant(dc.TenantField),
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Category: ev.GetCategory(dc.CategoryField),
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Subject: ev.GetSubject(dc.SubjectField),
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Account: ev.GetAccount(dc.AccountField),
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Destination: ev.GetDestination(dc.DestinationField),
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TimeStart: startTime,
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TimeEnd: startTime.Add(usage),
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}
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var remainingDuration float64
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err = rs.GetMaxSessionTime(cd, &remainingDuration)
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if err != nil {
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*reply = 0
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return err
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}
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if utils.IsSliceMember([]string{utils.META_POSTPAID, utils.POSTPAID}, ev.GetReqType(dc.RequestTypeField)) {
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// Only consider prepaid and pseudoprepaid for MaxSessionTime, do it here for unauthorized destination error check
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continue
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}
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// Set maxCallDuration, smallest out of all forked sessions
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if maxCallDuration == -1.0 { // first time we set it /not initialized yet
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maxCallDuration = remainingDuration
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} else if maxCallDuration > remainingDuration {
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maxCallDuration = remainingDuration
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}
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}
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*reply = maxCallDuration
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Value: reply})
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return nil
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}
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// Used by SM to get all the prepaid CallDescriptors attached to a session
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func (rs *Responder) GetSessionRuns(ev *CDR, sRuns *[]*SessionRun) error {
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cacheKey := utils.GET_SESS_RUNS_CACHE_PREFIX + ev.CGRID
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if item, err := rs.getCache().Get(cacheKey); err == nil && item != nil {
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if item.Value != nil {
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*sRuns = *(item.Value.(*[]*SessionRun))
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}
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return item.Err
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}
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if ev.Subject == "" {
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ev.Subject = ev.Account
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}
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//utils.Logger.Info(fmt.Sprintf("DC before: %+v", ev))
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// replace user profile fields
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if err := LoadUserProfile(ev, utils.EXTRA_FIELDS); err != nil {
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return err
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}
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// replace aliases
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if err := LoadAlias(
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&AttrMatchingAlias{
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Destination: ev.Destination,
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Direction: ev.Direction,
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Tenant: ev.Tenant,
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Category: ev.Category,
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Account: ev.Account,
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Subject: ev.Subject,
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Context: utils.ALIAS_CONTEXT_RATING,
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}, ev, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
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return err
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}
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//utils.Logger.Info(fmt.Sprintf("DC after: %+v", ev))
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attrsDC := &utils.AttrDerivedChargers{Tenant: ev.GetTenant(utils.META_DEFAULT), Category: ev.GetCategory(utils.META_DEFAULT), Direction: ev.GetDirection(utils.META_DEFAULT),
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Account: ev.GetAccount(utils.META_DEFAULT), Subject: ev.GetSubject(utils.META_DEFAULT), Destination: ev.GetDestination(utils.META_DEFAULT)}
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//utils.Logger.Info(fmt.Sprintf("Derived chargers for: %+v", attrsDC))
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dcs := &utils.DerivedChargers{}
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if err := rs.GetDerivedChargers(attrsDC, dcs); err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{
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Err: err,
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})
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return err
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}
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dcs, _ = dcs.AppendDefaultRun()
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//utils.Logger.Info(fmt.Sprintf("DCS: %v", len(dcs.Chargers)))
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sesRuns := make([]*SessionRun, 0)
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for _, dc := range dcs.Chargers {
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if !utils.IsSliceMember([]string{utils.META_PREPAID, utils.PREPAID}, ev.GetReqType(dc.RequestTypeField)) {
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continue // We only consider prepaid sessions
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}
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startTime, err := ev.GetAnswerTime(dc.AnswerTimeField, rs.Timezone)
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if err != nil || startTime.IsZero() { // AnswerTime not parsable, try SetupTime
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startTime, err = ev.GetSetupTime(dc.SetupTimeField, rs.Timezone)
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if err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return errors.New("Error parsing answer event start time")
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}
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}
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endTime, err := ev.GetEndTime("", rs.Timezone)
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if err != nil {
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
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return errors.New("Error parsing answer event end time")
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}
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extraFields := ev.GetExtraFields()
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cd := &CallDescriptor{
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CgrID: ev.GetCgrId(rs.Timezone),
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RunID: dc.RunID,
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TOR: ev.ToR,
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Direction: ev.GetDirection(dc.DirectionField),
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Tenant: ev.GetTenant(dc.TenantField),
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Category: ev.GetCategory(dc.CategoryField),
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Subject: ev.GetSubject(dc.SubjectField),
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Account: ev.GetAccount(dc.AccountField),
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Destination: ev.GetDestination(dc.DestinationField),
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TimeStart: startTime,
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TimeEnd: endTime,
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ExtraFields: extraFields}
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if flagsStr, hasFlags := extraFields[utils.CGRFlags]; hasFlags { // Force duration from extra fields
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flags := utils.StringMapFromSlice(strings.Split(flagsStr, utils.INFIELD_SEP))
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if _, hasFD := flags[utils.FlagForceDuration]; hasFD {
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cd.ForceDuration = true
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}
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}
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sesRuns = append(sesRuns, &SessionRun{DerivedCharger: dc, CallDescriptor: cd})
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}
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//utils.Logger.Info(fmt.Sprintf("RUNS: %v", len(sesRuns)))
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*sRuns = sesRuns
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rs.getCache().Cache(cacheKey, &cache.CacheItem{Value: sRuns})
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return nil
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}
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|
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func (rs *Responder) GetDerivedChargers(attrs *utils.AttrDerivedChargers, dcs *utils.DerivedChargers) error {
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if dcsH, err := HandleGetDerivedChargers(dataStorage, attrs); err != nil {
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return err
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} else if dcsH != nil {
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*dcs = *dcsH
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}
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return nil
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}
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|
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func (rs *Responder) GetLCR(attrs *AttrGetLcr, reply *LCRCost) error {
|
|
cacheKey := utils.LCRCachePrefix + attrs.CgrID + attrs.RunID
|
|
if item, err := rs.getCache().Get(cacheKey); err == nil && item != nil {
|
|
if item.Value != nil {
|
|
*reply = *(item.Value.(*LCRCost))
|
|
}
|
|
return item.Err
|
|
}
|
|
if attrs.CallDescriptor.Subject == "" {
|
|
attrs.CallDescriptor.Subject = attrs.CallDescriptor.Account
|
|
}
|
|
// replace user profile fields
|
|
if err := LoadUserProfile(attrs.CallDescriptor, utils.EXTRA_FIELDS); err != nil {
|
|
return err
|
|
}
|
|
// replace aliases
|
|
cd := attrs.CallDescriptor
|
|
if err := LoadAlias(
|
|
&AttrMatchingAlias{
|
|
Destination: cd.Destination,
|
|
Direction: cd.Direction,
|
|
Tenant: cd.Tenant,
|
|
Category: cd.Category,
|
|
Account: cd.Account,
|
|
Subject: cd.Subject,
|
|
Context: utils.ALIAS_CONTEXT_RATING,
|
|
}, cd, utils.EXTRA_FIELDS); err != nil && err != utils.ErrNotFound {
|
|
rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
|
|
return err
|
|
}
|
|
lcrCost, err := attrs.CallDescriptor.GetLCR(rs.Stats, attrs.LCRFilter, attrs.Paginator)
|
|
if err != nil {
|
|
rs.getCache().Cache(cacheKey, &cache.CacheItem{Err: err})
|
|
return err
|
|
}
|
|
if lcrCost.Entry != nil && lcrCost.Entry.Strategy == LCR_STRATEGY_LOAD {
|
|
for _, suppl := range lcrCost.SupplierCosts {
|
|
suppl.Cost = -1 // In case of load distribution we don't calculate costs
|
|
}
|
|
}
|
|
rs.getCache().Cache(cacheKey, &cache.CacheItem{Value: lcrCost})
|
|
*reply = *lcrCost
|
|
return nil
|
|
}
|
|
|
|
func (rs *Responder) Status(arg string, reply *map[string]interface{}) (err error) {
|
|
if arg != "" { // Introduce delay in answer, used in some automated tests
|
|
if delay, err := utils.ParseDurationWithSecs(arg); err == nil {
|
|
time.Sleep(delay)
|
|
}
|
|
}
|
|
memstats := new(runtime.MemStats)
|
|
runtime.ReadMemStats(memstats)
|
|
response := make(map[string]interface{})
|
|
response[utils.InstanceID] = config.CgrConfig().InstanceID
|
|
response["MemoryUsage"] = utils.SizeFmt(float64(memstats.HeapAlloc), "")
|
|
response[utils.ActiveGoroutines] = runtime.NumGoroutine()
|
|
response["Footprint"] = utils.SizeFmt(float64(memstats.Sys), "")
|
|
*reply = response
|
|
return
|
|
}
|
|
|
|
func (rs *Responder) Shutdown(arg string, reply *string) (err error) {
|
|
dataStorage.Close()
|
|
cdrStorage.Close()
|
|
defer func() { rs.ExitChan <- true }()
|
|
*reply = "Done!"
|
|
return
|
|
}
|
|
|
|
func (rs *Responder) GetTimeout(i int, d *time.Duration) error {
|
|
*d = rs.Timeout
|
|
return nil
|
|
}
|
|
|
|
func (rs *Responder) Call(serviceMethod string, args interface{}, reply interface{}) error {
|
|
parts := strings.Split(serviceMethod, ".")
|
|
if len(parts) != 2 {
|
|
return utils.ErrNotImplemented
|
|
}
|
|
// get method
|
|
method := reflect.ValueOf(rs).MethodByName(parts[1])
|
|
if !method.IsValid() {
|
|
return utils.ErrNotImplemented
|
|
}
|
|
// construct the params
|
|
params := []reflect.Value{reflect.ValueOf(args), reflect.ValueOf(reply)}
|
|
ret := method.Call(params)
|
|
if len(ret) != 1 {
|
|
return utils.ErrServerError
|
|
}
|
|
if ret[0].Interface() == nil {
|
|
return nil
|
|
}
|
|
err, ok := ret[0].Interface().(error)
|
|
if !ok {
|
|
return utils.ErrServerError
|
|
}
|
|
return err
|
|
}
|