/
service.go
386 lines (323 loc) · 9.56 KB
/
service.go
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package core
import (
"errors"
"fmt"
"os"
"reflect"
"sort"
"strings"
"sync"
"time"
model "github.com/nettica-com/nettica-admin/model"
mongo "github.com/nettica-com/nettica-admin/mongo"
util "github.com/nettica-com/nettica-admin/util"
log "github.com/sirupsen/logrus"
)
var (
CreateLock sync.Mutex
)
// CreateService service with all necessary data
func CreateService(service *model.Service) (*model.Service, error) {
// lock the function so only one service can be created at a time
CreateLock.Lock()
defer CreateLock.Unlock()
var err error
service.Id, err = util.RandomString(12)
if err != nil {
return nil, err
}
service.Id = "service-" + service.Id
service.Created = time.Now().UTC()
service.Updated = time.Now().UTC()
if service.ApiKey == "" {
service.ApiKey, err = util.RandomString(32)
if err != nil {
return nil, err
}
service.ApiKey = "service-api-" + service.ApiKey
}
// TODO: validate the subscription
// find the account id for this user
accounts, err := ReadAllAccounts(service.CreatedBy)
if err != nil {
return nil, err
}
for _, account := range accounts {
if account.Parent == account.Id {
service.AccountID = account.Id
break
}
}
if service.ServicePort == 0 {
service.ServicePort = 30001
}
if service.DefaultSubnet == "" {
service.DefaultSubnet = "10.10.10.0/24"
}
// Find or create the network to use for the service
if service.Net == nil {
return nil, errors.New("net is nil")
}
if service.Net.NetName == "" {
service.Net.NetName = service.Name
}
if service.Net.Id == "" {
// get all the current nets and see if there is one with the same name
nets, err := ReadNetworks(service.CreatedBy)
if err != nil {
return nil, err
}
found := false
for _, n := range nets {
if n.NetName == service.Net.NetName {
found = true
service.Net = n
break
}
}
if !found {
// create a default net
net := model.Network{
AccountID: service.AccountID,
NetName: service.Net.NetName,
Description: service.Description,
Created: time.Now().UTC(),
Updated: time.Now().UTC(),
CreatedBy: service.CreatedBy,
UpdatedBy: service.CreatedBy,
}
net.Default.Address = []string{service.DefaultSubnet}
net.Default.Dns = service.Net.Default.Dns
net.Default.EnableDns = false
net.Default.UPnP = false
service.Net, err = CreateNet(&net)
if err != nil {
return nil, err
}
}
} else {
// check if net exists
service.Net, err = ReadNet(service.Net.Id)
if err != nil {
return nil, err
}
if service.Net == nil {
return nil, errors.New("net does not exist")
}
log.Infof("Using existing net: %s", service.Net.NetName)
}
if service.VPN == nil {
return nil, errors.New("vpn is nil")
}
// Create a device for the service container
service.Device = &model.Device{
AccountID: service.AccountID,
Name: strings.ToLower(service.ServiceType) + "." + service.Net.NetName,
Description: service.Description,
Enable: true,
Server: os.Getenv("SERVER"),
Type: "Service",
Platform: "Linux",
Created: time.Now().UTC(),
Updated: time.Now().UTC(),
CreatedBy: service.CreatedBy,
UpdatedBy: service.CreatedBy,
}
// Create the device
service.Device, err = CreateDevice(service.Device)
if err != nil {
return nil, err
}
// create a default vpn using the net
vpn := model.VPN{
AccountID: service.AccountID,
Name: strings.ToLower(service.ServiceType) + "." + service.Net.NetName,
Enable: true,
NetId: service.Net.Id,
NetName: service.Net.NetName,
DeviceID: service.Device.Id,
Current: service.VPN.Current,
Default: service.Net.Default,
Type: "Service",
Created: time.Now().UTC(),
Updated: time.Now().UTC(),
CreatedBy: service.CreatedBy,
UpdatedBy: service.CreatedBy,
}
// Failsafe entry for DNS. Service will break without proper DNS setup. If nothing is set use google
if len(vpn.Current.Dns) == 0 {
vpn.Current.Dns = append(vpn.Current.Dns, "8.8.8.8")
}
// Configure the routing for the relay/egress vpn
if vpn.Current.PostUp == "" {
vpn.Current.PostUp = fmt.Sprintf("iptables -A FORWARD -i %s -j ACCEPT; iptables -A FORWARD -o %s -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE", vpn.NetName, vpn.NetName)
}
if vpn.Current.PostDown == "" {
vpn.Current.PostDown = fmt.Sprintf("iptables -D FORWARD -i %s -j ACCEPT; iptables -D FORWARD -o %s -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE", vpn.NetName, vpn.NetName)
}
vpn.Current.PersistentKeepalive = 23
if service.ServiceType != "Ingress" && service.ServiceType != "Egress" {
vpn.Current.SyncEndpoint = true
}
switch service.ServiceType {
case "Relay":
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Current.Address...)
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Default.Address...)
case "Tunnel":
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Current.Address...)
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Default.Address...)
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, "0.0.0.0/0")
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, "::/0")
case "Ingress":
vpn.Role = "Ingress"
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Current.Address...)
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Default.Address...)
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, "0.0.0.0/0")
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, "::/0")
case "Egress":
vpn.Role = "Egress"
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, vpn.Current.Address...)
vpn.Current.AllowedIPs = append(vpn.Current.AllowedIPs, "0.0.0.0/0")
}
service.VPN, err = CreateVPN(&vpn)
if err != nil {
return nil, err
}
// check if service is valid
errs := service.IsValid()
if len(errs) != 0 {
for _, err := range errs {
log.Error(err)
}
return nil, errors.New("failed to validate service")
}
// create the service
err = mongo.Serialize(service.Id, "id", "services", service)
if err != nil {
return nil, err
}
v, err := mongo.Deserialize(service.Id, "id", "services", reflect.TypeOf(model.Service{}))
if err != nil {
return nil, err
}
service = v.(*model.Service)
// return the service
return service, nil
}
// ReadService service by id
func ReadService(id string) (*model.Service, error) {
v, err := mongo.Deserialize(id, "id", "services", reflect.TypeOf(model.Service{}))
if err != nil {
return nil, err
}
service := v.(*model.Service)
return service, nil
}
// UpdateService preserve keys
func UpdateService(Id string, service *model.Service) (*model.Service, error) {
v, err := mongo.Deserialize(Id, "id", "services", reflect.TypeOf(model.Service{}))
if err != nil {
return nil, err
}
current := v.(*model.Service)
if v == nil {
return nil, errors.New("service is nil")
// x: = fmt.Sprintf("could not retrieve service %s", Id)
// return nil, errors.New(x)
}
if current.Id != Id {
return nil, errors.New("records Id mismatch")
}
// check if service is valid
errs := service.IsValid()
if len(errs) != 0 {
for _, err := range errs {
log.WithFields(log.Fields{
"err": err,
}).Error("service validation error")
}
return nil, errors.New("failed to validate service")
}
service.Updated = time.Now().UTC()
err = mongo.Serialize(service.Id, "id", "services", service)
if err != nil {
return nil, err
}
v, err = mongo.Deserialize(Id, "id", "services", reflect.TypeOf(model.Service{}))
if err != nil {
return nil, err
}
service = v.(*model.Service)
// data modified, dump new config
return service, nil
}
// DeleteService from database
func DeleteService(id string) error {
// Get the service
v, err := mongo.Deserialize(id, "id", "services", reflect.TypeOf(model.Service{}))
if err != nil {
log.Errorf("failed to delete service %s", id)
return err
}
service := v.(*model.Service)
if service.VPN.Id != "" {
err = DeleteVPN(service.VPN.Id)
if err != nil {
log.Errorf("failed to delete vpn %s (%s)", service.VPN.Id, service.VPN.Name)
return err
}
}
if service.Net.Id != "" {
vpns, err := ReadVPN2("netid", service.Net.Id)
if err != nil {
log.Errorf("failed to delete net %s", service.Net.Id)
return err
}
if len(vpns) == 0 {
err = DeleteNet(service.Net.Id)
if err != nil {
log.Errorf("failed to delete net %s (%s)", service.Net.Id, service.Net.NetName)
return err
}
}
}
if service.Device.Id != "" {
err = DeleteDevice(service.Device.Id)
if err != nil {
log.Errorf("failed to delete device %s (%s)", service.Device.Id, service.Device.Name)
return err
}
}
// Now delete the service
err = mongo.Delete(id, "id", "services")
if err != nil {
return err
}
return nil
}
func ReadServicesForAccount(accountId string) ([]*model.Service, error) {
services, err := mongo.ReadServices("accountid", accountId)
return services, err
}
// ReadServices all clients
func ReadServices(email string) ([]*model.Service, error) {
accounts, err := mongo.ReadAllAccounts(email)
results := make([]*model.Service, 0)
for _, account := range accounts {
if account.Id == account.Parent && account.Status == "Active" {
services, err := mongo.ReadAllServices(email)
if err == nil {
results = append(results, services...)
}
}
}
sort.Slice(results, func(i, j int) bool {
return results[i].Created.After(results[j].Created)
})
return results, err
}
// ReadServiceVPN returns all services configured for a vpn
func ReadServiceVPN(serviceGroup string) ([]*model.Service, error) {
services, err := mongo.ReadServiceHost(serviceGroup)
return services, err
}