/
fsevent.go
461 lines (422 loc) · 16.6 KB
/
fsevent.go
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/*
Real-time Online/Offline Charging System (OCS) 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 agents
import (
"fmt"
"strconv"
"strings"
"time"
"github.com/cgrates/cgrates/config"
"github.com/cgrates/cgrates/sessions"
"github.com/cgrates/cgrates/utils"
"github.com/cgrates/fsock"
)
// ToDo: Introduce support for RSRFields
const (
// Freswitch event proprities names
SUBJECT = "variable_" + utils.CGR_SUBJECT
ACCOUNT = "variable_" + utils.CGR_ACCOUNT
DESTINATION = "variable_" + utils.CGR_DESTINATION
REQTYPE = "variable_" + utils.CGR_REQTYPE //prepaid or postpaid
CATEGORY = "variable_" + utils.CGR_CATEGORY
VAR_CGR_SUPPLIER = "variable_" + utils.CGR_SUPPLIER
UUID = "Unique-ID" // -Unique ID for this call leg
CSTMID = "variable_" + utils.CGR_TENANT
CALL_DEST_NR = "Caller-Destination-Number"
SIP_REQ_USER = "variable_sip_req_user"
PARK_TIME = "Caller-Profile-Created-Time"
SETUP_TIME = "Caller-Channel-Created-Time"
ANSWER_TIME = "Caller-Channel-Answered-Time"
END_TIME = "Caller-Channel-Hangup-Time"
DURATION = "variable_billsec"
NAME = "Event-Name"
HEARTBEAT = "HEARTBEAT"
ANSWER = "CHANNEL_ANSWER"
HANGUP = "CHANNEL_HANGUP_COMPLETE"
PARK = "CHANNEL_PARK"
AUTH_OK = "AUTH_OK"
DISCONNECT = "SWITCH DISCONNECT"
MANAGER_REQUEST = "MANAGER_REQUEST"
USERNAME = "Caller-Username"
FS_IPv4 = "FreeSWITCH-IPv4"
HANGUP_CAUSE = "Hangup-Cause"
PDD_MEDIA_MS = "variable_progress_mediamsec"
PDD_NOMEDIA_MS = "variable_progressmsec"
IGNOREPARK = "variable_cgr_ignorepark"
FS_VARPREFIX = "variable_"
VarCGRFlags = "variable_" + utils.CGRFlags
CGRResourceAllocation = "cgr_resource_allocation"
VAR_CGR_DISCONNECT_CAUSE = "variable_" + utils.CGR_DISCONNECT_CAUSE
VAR_CGR_CMPUTELCR = "variable_" + utils.CGR_COMPUTELCR
FsConnID = "FsConnID" // used to share connID info in event for remote disconnects
VarAnswerEpoch = "variable_answer_epoch"
VarCGRACD = "variable_" + utils.CGR_ACD
VarCGROriginHost = "variable_" + utils.CGROriginHost
)
func NewFSEvent(strEv string) (fsev FSEvent) {
return fsock.FSEventStrToMap(strEv, nil)
}
// Event type holding a mapping of all event's proprieties
type FSEvent map[string]string
// Nice printing for the event object.
func (fsev FSEvent) String() (result string) {
for k, v := range fsev {
result += fmt.Sprintf("%s = %s\n", k, v)
}
result += "=============================================================="
return
}
func (fsev FSEvent) GetName() string {
return fsev[NAME]
}
// Account calling
func (fsev FSEvent) GetAccount(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[ACCOUNT], fsev[USERNAME])
}
// Rating subject being charged
func (fsev FSEvent) GetSubject(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[SUBJECT], fsev.GetAccount(fieldName))
}
// Charging destination number
func (fsev FSEvent) GetDestination(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[DESTINATION],
fsev[CALL_DEST_NR], fsev[SIP_REQ_USER])
}
// Original dialed destination number, useful in case of unpark
func (fsev FSEvent) GetCallDestNr(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[CALL_DEST_NR], fsev[SIP_REQ_USER])
}
func (fsev FSEvent) GetCategory(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[CATEGORY],
config.CgrConfig().GeneralCfg().DefaultCategory)
}
func (fsev FSEvent) GetUUID() string {
return fsev[UUID]
}
func (fsev FSEvent) GetSessionIds() []string {
return []string{fsev.GetUUID()}
}
func (fsev FSEvent) GetTenant(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[CSTMID],
config.CgrConfig().GeneralCfg().DefaultTenant)
}
func (fsev FSEvent) GetReqType(fieldName string) string {
var reqTypeDetected = "" // Used to automatically disable processing of the request
if fsev["variable_process_cdr"] == "false" { // FS will not generated CDR here
reqTypeDetected = utils.META_NONE
} else if fsev["Caller-Dialplan"] == "inline" { // Used for internally generated dialplan, eg refer coming from another box, not in our control
reqTypeDetected = utils.META_NONE
}
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[REQTYPE],
reqTypeDetected, config.CgrConfig().GeneralCfg().DefaultReqType)
}
func (fsev FSEvent) MissingParameter(timezone string) string {
if strings.TrimSpace(fsev.GetAccount(utils.MetaDefault)) == "" {
return utils.Account
}
if strings.TrimSpace(fsev.GetSubject(utils.MetaDefault)) == "" {
return utils.Subject
}
if strings.TrimSpace(fsev.GetDestination(utils.MetaDefault)) == "" {
return utils.Destination
}
if strings.TrimSpace(fsev.GetCategory(utils.MetaDefault)) == "" {
return utils.Category
}
if strings.TrimSpace(fsev.GetUUID()) == "" {
return utils.OriginID
}
if strings.TrimSpace(fsev.GetTenant(utils.MetaDefault)) == "" {
return utils.Tenant
}
if strings.TrimSpace(fsev.GetCallDestNr(utils.MetaDefault)) == "" {
return CALL_DEST_NR
}
return ""
}
func (fsev FSEvent) GetSetupTime(fieldName, timezone string) (t time.Time, err error) {
fsSTimeStr, hasKey := fsev[SETUP_TIME]
if hasKey && fsSTimeStr != "0" {
// Discard the nanoseconds information since MySQL cannot store them in early versions and csv uses default seconds so CGRID will not corelate
fsSTimeStr = fsSTimeStr[:len(fsSTimeStr)-6]
}
sTimeStr := utils.FirstNonEmpty(fsev[fieldName], fsSTimeStr)
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
sTimeStr = fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.ParseTimeDetectLayout(sTimeStr, timezone)
}
func (fsev FSEvent) GetAnswerTime(fieldName, timezone string) (t time.Time, err error) {
fsATimeStr, hasKey := fsev[ANSWER_TIME]
if hasKey && fsATimeStr != "0" {
// Discard the nanoseconds information since MySQL cannot store them in early versions and csv uses default seconds so CGRID will not corelate
fsATimeStr = fsATimeStr[:len(fsATimeStr)-6]
}
aTimeStr := utils.FirstNonEmpty(fsev[fieldName], fsATimeStr)
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
aTimeStr = fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.ParseTimeDetectLayout(aTimeStr, timezone)
}
func (fsev FSEvent) GetEndTime(fieldName, timezone string) (t time.Time, err error) {
return utils.ParseTimeDetectLayout(fsev[END_TIME], timezone)
}
func (fsev FSEvent) GetDuration(fieldName string) (time.Duration, error) {
durStr := utils.FirstNonEmpty(fsev[fieldName], fsev[DURATION])
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
durStr = fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.ParseDurationWithSecs(durStr)
}
func (fsev FSEvent) GetPdd(fieldName string) (time.Duration, error) {
var PDDStr string
if utils.SliceHasMember([]string{utils.MetaDefault, utils.PDD}, fieldName) {
PDDStr = utils.FirstNonEmpty(fsev[PDD_MEDIA_MS], fsev[PDD_NOMEDIA_MS])
if len(PDDStr) != 0 {
PDDStr = PDDStr + "ms" // PDD is in milliseconds and CGR expects it in seconds
}
} else if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
PDDStr = fieldName[len(utils.STATIC_VALUE_PREFIX):]
} else {
PDDStr = fsev[fieldName]
}
return utils.ParseDurationWithSecs(PDDStr)
}
func (fsev FSEvent) GetADC(fieldName string) (time.Duration, error) {
var ACDStr string
if utils.SliceHasMember([]string{utils.MetaDefault, utils.ACD}, fieldName) {
ACDStr = utils.FirstNonEmpty(fsev[VarCGRACD])
if len(ACDStr) != 0 {
ACDStr = ACDStr + "s" // ACD is in seconds and CGR expects it in seconds
}
} else if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
ACDStr = fieldName[len(utils.STATIC_VALUE_PREFIX):]
} else {
ACDStr = fsev[fieldName]
}
return utils.ParseDurationWithSecs(ACDStr)
}
func (fsev FSEvent) GetSupplier(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[VAR_CGR_SUPPLIER])
}
func (fsev FSEvent) GetDisconnectCause(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[VAR_CGR_DISCONNECT_CAUSE], fsev[HANGUP_CAUSE])
}
func (fsev FSEvent) GetOriginatorIP(fieldName string) string {
if strings.HasPrefix(fieldName, utils.STATIC_VALUE_PREFIX) { // Static value
return fieldName[len(utils.STATIC_VALUE_PREFIX):]
}
return utils.FirstNonEmpty(fsev[fieldName], fsev[VarCGROriginHost], fsev[FS_IPv4])
}
// GetOriginHost returns the first non empty between: fsev[VarCGROriginHost], conns[connId].cfg.Alias and fsev[FS_IPv4]
func (fsev FSEvent) GetOriginHost() string {
return utils.FirstNonEmpty(fsev[VarCGROriginHost], fsev[FS_IPv4])
}
func (fsev FSEvent) GetExtraFields() map[string]string {
extraFields := make(map[string]string)
for _, fldRule := range config.CgrConfig().FsAgentCfg().ExtraFields {
if parsed, err := fsev.ParseEventValue(fldRule,
config.CgrConfig().GeneralCfg().DefaultTimezone); err != nil {
utils.Logger.Warning(fmt.Sprintf("<%s> error: %s parsing event rule: %+v", utils.FreeSWITCHAgent, err.Error(), fldRule))
} else {
extraFields[fldRule.AttrName()] = parsed
}
}
return extraFields
}
// Used in derived charging and sittuations when we need to run regexp on fields
func (fsev FSEvent) ParseEventValue(rsrFld *config.RSRParser, timezone string) (parsed string, err error) {
switch rsrFld.AttrName() {
case utils.ToR:
return rsrFld.ParseValue(utils.VOICE)
case utils.OriginID:
return rsrFld.ParseValue(fsev.GetUUID())
case utils.OriginHost:
return rsrFld.ParseValue(fsev.GetOriginHost())
case utils.Source:
return rsrFld.ParseValue("FS_EVENT")
case utils.RequestType:
return rsrFld.ParseValue(fsev.GetReqType(""))
case utils.Tenant:
return rsrFld.ParseValue(fsev.GetTenant(""))
case utils.Category:
return rsrFld.ParseValue(fsev.GetCategory(""))
case utils.Account:
return rsrFld.ParseValue(fsev.GetAccount(""))
case utils.Subject:
return rsrFld.ParseValue(fsev.GetSubject(""))
case utils.Destination:
return rsrFld.ParseValue(fsev.GetDestination(""))
case utils.SetupTime:
st, _ := fsev.GetSetupTime("", timezone)
return rsrFld.ParseValue(st.String())
case utils.AnswerTime:
at, _ := fsev.GetAnswerTime("", timezone)
return rsrFld.ParseValue(at.String())
case utils.Usage:
dur, _ := fsev.GetDuration("")
return rsrFld.ParseValue(strconv.FormatInt(dur.Nanoseconds(), 10))
case utils.PDD:
PDD, _ := fsev.GetPdd(utils.MetaDefault)
return rsrFld.ParseValue(strconv.FormatFloat(PDD.Seconds(), 'f', -1, 64))
case utils.SUPPLIER:
return rsrFld.ParseValue(fsev.GetSupplier(""))
case utils.DISCONNECT_CAUSE:
return rsrFld.ParseValue(fsev.GetDisconnectCause(""))
case utils.RunID:
return rsrFld.ParseValue(utils.MetaDefault)
case utils.Cost:
return rsrFld.ParseValue(strconv.FormatFloat(-1, 'f', -1, 64)) // Recommended to use FormatCost
default:
if parsed, err = rsrFld.ParseValue(fsev[rsrFld.AttrName()]); err != nil {
parsed, err = rsrFld.ParseValue(fsev[FS_VARPREFIX+rsrFld.AttrName()])
}
return
}
}
// AsCGREvent converts FSEvent into CGREvent
func (fsev FSEvent) AsCGREvent(timezone string) (cgrEv *utils.CGREvent, err error) {
sTime, err := fsev.GetSetupTime(utils.MetaDefault, timezone)
if err != nil {
return nil, err
}
cgrEv = &utils.CGREvent{
Tenant: fsev.GetTenant(utils.MetaDefault),
ID: utils.UUIDSha1Prefix(),
Time: &sTime,
Event: fsev.AsMapStringInterface(timezone),
}
return cgrEv, nil
}
// Used with RLs
func (fsev FSEvent) AsMapStringInterface(timezone string) map[string]any {
mp := make(map[string]any)
for fld, val := range fsev.GetExtraFields() {
mp[fld] = val
}
mp[utils.ToR] = utils.VOICE
mp[utils.OriginID] = fsev.GetUUID()
mp[utils.OriginHost] = fsev.GetOriginHost()
mp[utils.Source] = "FS_" + fsev.GetName()
mp[utils.RequestType] = fsev.GetReqType(utils.MetaDefault)
mp[utils.Tenant] = fsev.GetTenant(utils.MetaDefault)
mp[utils.Category] = fsev.GetCategory(utils.MetaDefault)
mp[utils.Account] = fsev.GetAccount(utils.MetaDefault)
mp[utils.Subject] = fsev.GetSubject(utils.MetaDefault)
mp[utils.Destination] = fsev.GetDestination(utils.MetaDefault)
mp[utils.SetupTime], _ = fsev.GetSetupTime(utils.MetaDefault, timezone)
mp[utils.AnswerTime], _ = fsev.GetAnswerTime(utils.MetaDefault, timezone)
mp[utils.Usage], _ = fsev.GetDuration(utils.MetaDefault)
mp[utils.PDD], _ = fsev.GetPdd(utils.MetaDefault)
mp[utils.ACD], _ = fsev.GetADC(utils.MetaDefault)
mp[utils.COST] = -1.0
mp[utils.SUPPLIER] = fsev.GetSupplier(utils.MetaDefault)
mp[utils.DISCONNECT_CAUSE] = fsev.GetDisconnectCause(utils.MetaDefault)
return mp
}
// V1AuthorizeArgs returns the arguments used in SMGv1.Authorize
func (fsev FSEvent) V1AuthorizeArgs() (args *sessions.V1AuthorizeArgs) {
cgrEv, err := fsev.AsCGREvent(config.CgrConfig().GeneralCfg().DefaultTimezone)
if err != nil {
return
}
cgrEv.Event[utils.Usage] = config.CgrConfig().SessionSCfg().GetDefaultUsage(utils.IfaceAsString(cgrEv.Event[utils.ToR])) // no billsec available in auth
args = &sessions.V1AuthorizeArgs{ // defaults
CGREvent: cgrEv,
}
subsystems, has := fsev[VarCGRFlags]
if !has {
args.GetMaxUsage = true
return
}
args.ParseFlags(subsystems)
return
}
// V1InitSessionArgs returns the arguments used in SessionSv1.InitSession
func (fsev FSEvent) V1InitSessionArgs() (args *sessions.V1InitSessionArgs) {
cgrEv, err := fsev.AsCGREvent(config.CgrConfig().GeneralCfg().DefaultTimezone)
if err != nil {
return
}
args = &sessions.V1InitSessionArgs{ // defaults
CGREvent: cgrEv,
}
subsystems, has := fsev[VarCGRFlags]
if !has {
args.InitSession = true
return
}
args.ParseFlags(subsystems)
return
}
// V1TerminateSessionArgs returns the arguments used in SMGv1.TerminateSession
func (fsev FSEvent) V1TerminateSessionArgs() (args *sessions.V1TerminateSessionArgs) {
cgrEv, err := fsev.AsCGREvent(config.CgrConfig().GeneralCfg().DefaultTimezone)
if err != nil {
return
}
args = &sessions.V1TerminateSessionArgs{ // defaults
CGREvent: cgrEv,
}
subsystems, has := fsev[VarCGRFlags]
if !has {
args.TerminateSession = true
return
}
args.ParseFlags(subsystems)
return
}
// Converts a slice of strings into a FS array string, contains len(array) at first index since FS does not support len(ARRAY::) for now
func SliceAsFsArray(slc []string) string {
arry := ""
if len(slc) == 0 {
return arry
}
for idx, itm := range slc {
if idx == 0 {
arry = fmt.Sprintf("ARRAY::%d|:%s", len(slc), itm)
} else {
arry += "|:" + itm
}
}
return arry
}