overflow_probes/auth/registration.go
crusader 6fb6bc66d8 ing
2017-09-22 18:20:07 +09:00

117 lines
2.1 KiB
Go

package auth
import (
"bytes"
"encoding/base64"
"encoding/json"
"errors"
"net"
"git.loafle.net/commons_go/util/net/gateway"
"git.loafle.net/overflow/overflow_probes/central/api/module"
"git.loafle.net/overflow/overflow_probes/config"
"github.com/shirou/gopsutil/host"
)
func getRegistHeader() (string, error) {
var err error
nap := module.NoAuthProbe{
APIKey: config.Config.Domain.APIKey,
}
var nad *module.NoAuthProbeDescription
if nad, err = getDescription(); nil != err {
return "", err
}
var buf []byte
if buf, err = json.Marshal(nad); nil != err {
return "", err
}
nap.Description = string(buf)
if buf, err = json.Marshal(nap); nil != err {
return "", err
}
enc := base64.StdEncoding.EncodeToString(buf)
return enc, nil
}
func getDescription() (*module.NoAuthProbeDescription, error) {
nad := &module.NoAuthProbeDescription{}
if err := getHost(&nad.Host); nil != err {
return nil, err
}
if err := getNetwork(&nad.Network); nil != err {
return nil, err
}
return nad, nil
}
func getHost(h *module.NoAuthProbeDescriptionHost) error {
if i, err := host.Info(); nil == err {
h.Name = i.Hostname
h.OS = i.OS
h.Platform = i.Platform
h.PlatformFamily = i.PlatformFamily
h.KernelVersion = i.KernelVersion
h.HostID = i.HostID
} else {
return err
}
return nil
}
func getNetwork(n *module.NoAuthProbeDescriptionNetwork) error {
var ip net.IP
var iface string
var err error
if ip, iface, err = gateway.DiscoverGateway(); nil != err {
return err
}
interfaces, err := net.Interfaces()
if err != nil {
return err
}
idx := -1
for _idx, i := range interfaces {
if i.Name == iface {
idx = _idx
break
}
}
if -1 == idx {
return errors.New("Interface of gateway is not exist")
}
i := interfaces[idx]
n.Name = i.Name
n.MacAddress = i.HardwareAddr.String()
n.Gateway = ip.String()
if addrs, err := i.Addrs(); nil == err {
var buffer bytes.Buffer
for _idx, a := range addrs {
if 0 < _idx {
buffer.WriteString("|")
}
buffer.WriteString(a.String())
}
n.Address = buffer.String()
} else {
return err
}
return nil
}