orion/cmd/server/rpc/server.go

318 lines
8.1 KiB
Go

package rpc
import (
"context"
"fmt"
"net/http"
"time"
"forge.cadoles.com/Pyxis/orion/emlid"
"forge.cadoles.com/Pyxis/orion/emlid/updater"
"forge.cadoles.com/Pyxis/orion/openwrt"
"github.com/gorilla/rpc"
"github.com/gorilla/rpc/json"
"github.com/pkg/errors"
)
// OrionService is the JSON-RPC API
type OrionService struct {
UCI *openwrt.UCI
}
// NewOrionService create a new OrionService !
func NewOrionService() *OrionService {
uci := openwrt.NewUCI()
return &OrionService{
UCI: uci,
}
}
// UCIArgs argument structure for exported method OwrtListWifiDevices
type UCIArgs struct{}
// UCIResponse is the response structure for exposed method OwrtListWifiDevices
type UCIResponse struct {
Devices []map[string]string
}
// OwrtListWifiDevices offers an RPC Method to list Wifi nics in a OpenWRT device.
func (o *OrionService) OwrtListWifiDevices(r *http.Request, args *UCIArgs, reply *UCIResponse) error {
o.UCI.LoadWirelessConf()
devs := o.UCI.GetWifiDevices()
reply.Devices = devs
return nil
}
// ListIfaceArgs argument structure for exported method OwrtListWifiDevices
type ListIfaceArgs struct{}
// ListIfaceResponse is the response structure for exposed method OwrtListWifiDevices
type ListIfaceResponse struct {
Interfaces []*openwrt.UCIWirelessInterface
}
// OwrtListWifiInterfaces offers an RPC Method to list wifi interfaces in a OpenWRT device.
func (o *OrionService) OwrtListWifiInterfaces(r *http.Request, args *ListIfaceArgs, reply *ListIfaceResponse) error {
o.UCI.LoadWirelessConf()
reply.Interfaces = o.UCI.GetWifiIfaces()
return nil
}
// CreateIfaceArgs argument structure for exported method OwrtCreateWifiInterface
type CreateIfaceArgs struct {
Iface *openwrt.UCIWirelessInterface
Cleanup bool
}
// CreateIfaceResponse argument structure for exported method OwrtCreateWifiInterface
type CreateIfaceResponse struct {
Iface *openwrt.UCIWirelessInterface
Errors []*openwrt.Action
}
// OwrtCreateWifiInterface Create a WifiInterface in openwrt
func (o *OrionService) OwrtCreateWifiInterface(r *http.Request,
args *CreateIfaceArgs,
reply *CreateIfaceResponse) error {
reply.Iface = nil
if args.Cleanup {
o.UCI.LoadWirelessConf()
w := o.UCI.GetWifiIfaces()
for _, iface := range w {
iface.Delete(o.UCI)
}
o.UCI.Commit()
o.UCI.Reload()
time.Sleep(3 * time.Second)
}
o.UCI.LoadWirelessConf()
create := args.Iface.Create(o.UCI)
if create.ReturnCode != 0 {
reply.Errors = append(reply.Errors, create)
return nil
}
create = args.Iface.SysAdd(o.UCI)
if create.ReturnCode == 233 {
delete := args.Iface.SysDel(o.UCI)
if delete.ReturnCode != 0 {
reply.Errors = append(reply.Errors, delete)
return nil
}
create = args.Iface.SysAdd(o.UCI)
if create.ReturnCode != 0 {
reply.Errors = append(reply.Errors, create)
return nil
}
}
create = args.Iface.Up(o.UCI)
if create.ReturnCode != 0 {
reply.Errors = append(reply.Errors, create)
return nil
}
create = args.Iface.Save(o.UCI)
if create.ReturnCode != 0 {
reply.Errors = append(reply.Errors, create)
return nil
}
reply.Iface = args.Iface
return nil
}
// ConnectIfaceArgs argument structure for exported method OwrtCreateWifiInterface
type ConnectIfaceArgs struct {
Iface *openwrt.UCIWirelessInterface
SSID string
Key string
}
// ConnectIfaceResponse argument structure for exported method OwrtCreateWifiInterface
type ConnectIfaceResponse struct {
status int
Errors []string
}
// OwrtConnectWifiInterface connects a given Wifi Interface to a given SSID
func (o *OrionService) OwrtConnectWifiInterface(r *http.Request,
args *ConnectIfaceArgs,
reply *ConnectIfaceResponse) error {
o.UCI.LoadWirelessConf()
iface := o.UCI.GetWifiIface(args.Iface.Index)
cells := iface.Scan()
for _, cell := range cells {
if cell.Ssid == args.SSID {
cn := iface.Connect(o.UCI, cell, args.Key)
if cn.ReturnCode != 0 {
reply.status = cn.ReturnCode
reply.Errors = append(reply.Errors, cn.Stdout, cn.Stderr, cn.Command)
}
reply.status = 0
return nil
}
}
reply.status = 1
msg := fmt.Sprintf("Wifi Cell with SSID %s is not available !", args.SSID)
reply.Errors = append(reply.Errors, msg)
return nil
}
// OrionBox describe an fresh Orion box (base or rover)
type OrionBox struct {
Address string
SSID string
Security string
WifiKey string
}
// OrionServer describe the Orion master server
type OrionServer struct {
Address string
SSID string
Security string
WifiKey string
ClientIface *openwrt.UCIWirelessInterface
}
// UpdateOrionBoxArgs argument structure for exported method OwrtCreateWifiInterface
type UpdateOrionBoxArgs struct {
Box *OrionBox
Server *OrionServer
}
// UpdateOrionBoxResponse argument structure for exported method OwrtCreateWifiInterface
type UpdateOrionBoxResponse struct {
IP string
Netmask string
Synced bool
Version string
Errors []string
}
// Connect wifi interface to a Orion box wifi hotspot!
func (o *OrionService) connectBox(box *OrionBox, server *OrionServer) error {
o.UCI.LoadWirelessConf()
if server == nil {
return fmt.Errorf("Server definition is empty")
}
if box == nil {
return fmt.Errorf("Box definitioni is emtpy")
}
fmt.Println("DEBUG")
fmt.Println(server)
fmt.Println("DEBUG")
iface := server.ClientIface
cells := iface.Scan()
for _, cell := range cells {
fmt.Printf("Cell : %s\n", cell.Ssid)
if cell.Ssid == box.SSID {
cn := iface.Connect(o.UCI, cell, box.WifiKey)
if cn.ReturnCode != 0 {
return fmt.Errorf("%s\n%s", cn.Stdout, cn.Stderr)
}
dhcli := openwrt.NewDhcpClient(iface.SysDevName)
dhres := dhcli.AskForIP()
if dhres.CmdRes.ReturnCode != 0 {
return fmt.Errorf("%s\n%s", cn.Stdout, cn.Stderr)
}
return nil
}
}
return fmt.Errorf("Wifi cell with SSID %s is not available", box.SSID)
}
// UpdateOrionBox starts provisionning process for an Orion box (base or rover)
func (o *OrionService) UpdateOrionBox(r *http.Request,
args *UpdateOrionBoxArgs,
reply *UpdateOrionBoxResponse) error {
if err := o.connectBox(args.Box, args.Server); err != nil {
reply.Errors = append(reply.Errors, err.Error())
return errors.Wrap(err, "Connect to box failed")
}
re := o.UCI.Reload()
if re.ReturnCode != 0 {
return fmt.Errorf("%s\n%s", re.Stdout, re.Stderr)
}
ssid := args.Server.SSID
security := args.Server.Security
wifiKey := args.Server.WifiKey
if security == "" {
security = string(updater.SecurityWPAPSK)
}
//services, err := emlid.Discover(20 * time.Second)
//if err != nil {
// return err
//}
//if len(services) == 0 {
// return fmt.Errorf("Discovery don't find any Orion Box")
//}
//fmt.Println(services)
boxCli := updater.NewClient(
//emlid.WithService(services[0]),
emlid.WithEndpoint(args.Box.Address, 80),
)
if err := boxCli.Connect(); err != nil {
return errors.Wrap(err, "Box connect to master failed")
}
defer boxCli.Close()
ctx, addWifiCancel := context.WithTimeout(r.Context(), 55*time.Second)
defer addWifiCancel()
done, err := boxCli.AddWifiNetwork(ctx, ssid, updater.WifiSecurity(security), wifiKey)
if err != nil {
return errors.Wrap(err, "AddWifiNetworkFailed")
}
if !done {
return fmt.Errorf("Impossible to add wifi network")
}
ctx, joinWifiCancel := context.WithTimeout(ctx, 55*time.Second)
defer joinWifiCancel()
if err := boxCli.JoinWifiNetwork(ctx, ssid, true); err != nil {
return errors.Wrap(err, "Time sync failed")
}
ctx, timeSyncedCancel := context.WithTimeout(r.Context(), 55*time.Second)
defer timeSyncedCancel()
synced, err := boxCli.TimeSynced(ctx)
if err != nil {
return errors.Wrap(err, "Time sync failed")
}
reply.Synced = synced
ctx, reachviewVersionCancel := context.WithTimeout(r.Context(), 55*time.Second)
defer reachviewVersionCancel()
version, err := boxCli.ReachViewVersion(ctx)
if err != nil {
return err
}
reply.Version = version
ctx, rebootCancel := context.WithTimeout(r.Context(), 55*time.Second)
defer rebootCancel()
return boxCli.RebootNow(ctx, true)
}
// NewServer returns a new configured JSON-RPC server
func NewServer() *rpc.Server {
server := rpc.NewServer()
server.RegisterCodec(json.NewCodec(), "application/json")
if err := server.RegisterService(NewOrionService(), "Orion"); err != nil {
panic(err)
}
return server
}