mirror of
https://github.com/cgrates/cgrates.git
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87 lines
2.6 KiB
Go
87 lines
2.6 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 sessions
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import (
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"math/rand"
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"time"
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"github.com/cgrates/cgrates/engine"
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"github.com/cgrates/cgrates/utils"
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)
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var protectedSFlds = engine.MapEvent{
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utils.CGRID: struct{}{},
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utils.OriginHost: struct{}{},
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utils.OriginID: struct{}{},
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utils.Usage: struct{}{},
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}
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// SessionSClient is the interface implemented by Agents which are able to
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// communicate bidirectionally with SessionS and remote Communication Switch
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type SessionSClient interface {
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Call(serviceMethod string, args interface{}, reply interface{}) error
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V1DisconnectSession(args utils.AttrDisconnectSession, reply *string) (err error)
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V1GetActiveSessionIDs(ignParam string, sessionIDs *[]*SessionID) (err error)
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}
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// getSessionTTL retrieves SessionTTL setting out of ev
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// if SessionTTLMaxDelay is present in ev, the return is randomized
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func getSessionTTL(ev *engine.SafEvent, cfgSessionTTL time.Duration,
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cfgSessionTTLMaxDelay *time.Duration) (ttl time.Duration, err error) {
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if ttl, err = ev.GetDuration(utils.SessionTTL); err != nil {
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if err != utils.ErrNotFound {
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return
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}
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err = nil
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ttl = cfgSessionTTL
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}
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if ttl == 0 {
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return
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}
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// random delay computation
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var sessionTTLMaxDelay int64
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maxDelay, err := ev.GetDuration(utils.SessionTTLMaxDelay)
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if err != nil {
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if err != utils.ErrNotFound {
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return
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}
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err = nil // clear the error for return
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if cfgSessionTTLMaxDelay != nil {
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maxDelay = *cfgSessionTTLMaxDelay
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}
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}
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sessionTTLMaxDelay = maxDelay.Nanoseconds() / 1000000 // Milliseconds precision for randomness
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if sessionTTLMaxDelay != 0 {
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rand.Seed(time.Now().Unix())
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ttl += time.Duration(rand.Int63n(sessionTTLMaxDelay) * 1000000)
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}
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return
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}
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func GetSetCGRID(ev *engine.SafEvent) (cgrID string) {
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cgrID = ev.GetStringIgnoreErrors(utils.CGRID)
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if cgrID == "" {
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cgrID = utils.Sha1(ev.GetStringIgnoreErrors(utils.OriginID),
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ev.GetStringIgnoreErrors(utils.OriginHost))
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ev.Set(utils.CGRID, cgrID)
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}
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return
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}
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