P4wnP1_aloa/service/rpc_server.go
2020-02-05 08:37:06 +01:00

1108 lines
42 KiB
Go

// +build linux
package service
import (
"encoding/json"
"errors"
"fmt"
"github.com/improbable-eng/grpc-web/go/grpcweb"
"github.com/mame82/P4wnP1_aloa/common"
"github.com/mame82/P4wnP1_aloa/common_web"
pb "github.com/mame82/P4wnP1_aloa/proto"
"github.com/mame82/P4wnP1_aloa/service/bluetooth"
"golang.org/x/net/context"
"google.golang.org/grpc"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"os"
"path"
"path/filepath"
"strings"
"time"
)
var (
rpcErrNoHid = errors.New("HIDScript engine disabled, as current USB configuration has mouse and keyboard disable")
)
const (
cSTORE_PREFIX_WIFI_SETTINGS = "ws_"
cSTORE_PREFIX_USB_SETTINGS = "usbs_"
cSTORE_PREFIX_ETHERNET_INTERFACE_SETTINGS = "eis_"
cSTORE_PREFIX_TRIGGER_ACTION_SET = "tas_"
cSTORE_PREFIX_BLUETOOTH_SETTINGS = "bt_"
cSTORE_PREFIX_MASTER_TEMPLATE = "master_"
cSTORE_STARTUP_MASTER_TEMPLATE = "startup_master"
)
func NewRpcServerService(root *Service) *server {
return &server{
rootSvc:root,
}
}
type server struct {
rootSvc *Service
listenAddrGrpc string
listenAddrWeb string
}
func (s *server) ListUmsImageFlashdrive(ctx context.Context, e *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
scripts,err := ListFilesOfFolder(common.PATH_IMAGE_FLASHDRIVE, ".img", ".bin")
if err != nil { return sa,err }
sa.MsgArray = scripts
return
}
func (s *server) ListUmsImageCdrom(ctx context.Context, e *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
scripts,err := ListFilesOfFolder(common.PATH_IMAGE_CDROM, ".iso")
if err != nil { return sa,err }
sa.MsgArray = scripts
return
}
func (s *server) GetStartupMasterTemplate(ctx context.Context, e *pb.Empty) (msg *pb.StringMessage, err error) {
msg = &pb.StringMessage{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_STARTUP_MASTER_TEMPLATE, msg)
fmt.Printf("Retrieved startup MasterTemplate name '%s'\n", msg.Msg)
return
}
func (s *server) SetStartupMasterTemplate(ctx context.Context, msg *pb.StringMessage) (e *pb.Empty, err error) {
fmt.Printf("Setting startup MasterTemplate name to '%s'\n", msg.Msg)
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Put(cSTORE_STARTUP_MASTER_TEMPLATE, msg, true)
return
}
func (s *server) Shutdown(context.Context, *pb.Empty) (e *pb.Empty, err error) {
e = &pb.Empty{}
s.rootSvc.Shutdown()
return
}
func (s *server) Reboot(context.Context, *pb.Empty) (e *pb.Empty, err error) {
e = &pb.Empty{}
s.rootSvc.Reboot()
return
}
func (s *server) DeployTriggerActionSetUpdate(ctx context.Context, updateTas *pb.TriggerActionSet) (resultingTas *pb.TriggerActionSet, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_TRIGGER_ACTIONS))
for _, updateTa := range updateTas.TriggerActions {
// try to find the trigger action to update by ID
fmt.Printf("Updating TriggerAction %d ...\n", updateTa.Id)
if s.rootSvc.SubSysTriggerActions.UpdateTriggerAction(updateTa, false) != nil {
fmt.Printf("Updating TriggerAction %d failed: %v\n", updateTa.Id, err)
// coudln't find the given action, return with error
return &s.rootSvc.SubSysTriggerActions.registeredTriggerActions,errors.New(fmt.Sprintf("Couldn't find trigger action with id %d", updateTa.Id))
}
fmt.Printf("Updating TriggerAction %d succeeded\n", updateTa.Id)
}
resultingTas = &s.rootSvc.SubSysTriggerActions.registeredTriggerActions
return
}
func (s *server) GetAvailableGpios(context.Context, *pb.Empty) (res *pb.StringMessageArray, err error) {
res = &pb.StringMessageArray{}
res.MsgArray,err = s.rootSvc.SubSysGpio.GetAvailableGpioNames()
return
}
func (s *server) DeployMasterTemplate(ctx context.Context, mt *pb.MasterTemplate) (e *pb.Empty, err error) {
e = &pb.Empty{}
fmt.Println("Deploying master template ...")
//ignore templates with name of length 0
if len(mt.TemplateNameTriggerActions) > 0 {
fmt.Printf("... deploying TriggerActions '%s' ...\n", mt.TemplateNameTriggerActions)
_,err = s.DeployStoredTriggerActionSetReplace(ctx, &pb.StringMessage{Msg: mt.TemplateNameTriggerActions})
if err != nil {
fmt.Printf("... error deploying TriggerActions '%s'\n", mt.TemplateNameTriggerActions)
return
}
fmt.Printf("... succeeded deploying TriggerActions '%s'\n", mt.TemplateNameTriggerActions)
}
for _,nnw := range mt.TemplateNamesNetwork {
fmt.Printf("... deploying Network Interface Settings '%s' ...\n", nnw)
_,err = s.DeployStoredEthernetInterfaceSettings(ctx, &pb.StringMessage{Msg: nnw})
if err != nil {
fmt.Printf("... error deploying Network Interface Settings '%s'\n", nnw)
return
}
fmt.Printf("... succeeded deploying Network Interface Settings '%s'\n", nnw)
}
if len(mt.TemplateNameBluetooth) > 0 {
fmt.Printf("... deploying Bluetooth settings '%s' ...\n", mt.TemplateNameBluetooth)
_, btErr := s.DeployStoredBluetoothSettings(ctx, &pb.StringMessage{Msg: mt.TemplateNameBluetooth})
if btErr != nil {
if btErr == bluetooth.ErrBtSvcNotAvailable {
fmt.Printf("... ignoring Bluetooth error '%s'\n", mt.TemplateNameBluetooth)
} else {
fmt.Printf("... error deploying Bluetooth settings '%s'\n", mt.TemplateNameBluetooth)
return
}
fmt.Printf("... error deploying Bluetooth settings '%s'\n", mt.TemplateNameBluetooth)
}
fmt.Printf("... succeeded deploying Bluetooth settings '%s'\n", mt.TemplateNameBluetooth)
}
if len(mt.TemplateNameUsb) > 0 {
fmt.Printf("... deploying USB settings '%s' ...\n", mt.TemplateNameUsb)
_, err = s.DeployStoredUSBSettings(ctx, &pb.StringMessage{Msg: mt.TemplateNameUsb})
if err != nil {
fmt.Printf("... error deploying USB settings '%s'\n", mt.TemplateNameUsb)
return
}
fmt.Printf("... succeeded deploying USB settings '%s'\n", mt.TemplateNameUsb)
}
if len(mt.TemplateNameWifi) > 0 {
fmt.Printf("... deploying WiFi settings '%s' ...\n", mt.TemplateNameWifi)
_, err = s.DeployStoredWifiSettings(ctx, &pb.StringMessage{Msg: mt.TemplateNameWifi})
if err != nil {
fmt.Printf("... error deploying WiFi settings '%s'\n", mt.TemplateNameWifi)
return
}
fmt.Printf("... succeeded deploying WiFi settings '%s'\n", mt.TemplateNameWifi)
}
fmt.Println("... master template deployed successfully")
return
}
func (s *server) StoreMasterTemplate(ctx context.Context, r *pb.RequestMasterTemplateStorage) (e *pb.Empty, err error) {
e = &pb.Empty{}
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_GLOBAL_SETTINGS_LIST))
err = s.rootSvc.SubSysDataStore.Put(cSTORE_PREFIX_MASTER_TEMPLATE + r.TemplateName, r.Template, true)
return
}
func (s *server) GetStoredMasterTemplate(ctx context.Context, templateName *pb.StringMessage) (result *pb.MasterTemplate, err error) {
result = &pb.MasterTemplate{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_MASTER_TEMPLATE + templateName.Msg, result)
return
}
func (s *server) DeployStoredMasterTemplate(ctx context.Context, templateName *pb.StringMessage) (re *pb.MasterTemplate, err error) {
re,err = s.GetStoredMasterTemplate(ctx,templateName)
if err != nil { return }
_,err = s.DeployMasterTemplate(ctx, re)
return
}
func (s *server) DeleteStoredMasterTemplate(ctx context.Context, templateName *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_GLOBAL_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Delete(cSTORE_PREFIX_MASTER_TEMPLATE + templateName.Msg)
return
}
func (s *server) ListStoredMasterTemplate(ctx context.Context, e *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
res,err := s.rootSvc.SubSysDataStore.KeysPrefix(cSTORE_PREFIX_MASTER_TEMPLATE, true)
if err != nil { return sa,err }
sa.MsgArray = res
return
}
func (s *server) WaitTriggerGroupReceive(rpcCtx context.Context, triggerGR *pb.TriggerGroupReceive) (e *pb.Empty, err error) {
e = &pb.Empty{}
triggerVal := triggerGR.Value
triggerGroupName := triggerGR.GroupName
//register a proper event listener
evtRcv := s.rootSvc.SubSysEvent.RegisterReceiver(common_web.EVT_TRIGGER)
defer evtRcv.Cancel()
Outer:
for {
select {
case evt := <- evtRcv.EventQueue:
// avoid consuming empty messages, because channel is closed
if evt == nil {
break Outer // abort loop on "nil" event, as this indicates the EventQueue channel has been closed
}
// check if received trigger event applies to TriggerGroupReceive
if ttEvt := common_web.EvtTriggerType(evt.Values[0].GetTint64()); ttEvt == common_web.TRIGGER_EVT_TYPE_GROUP_RECEIVE {
evGroupName,evValue,err := DeconstructEventTriggerGroupReceive(evt)
if err != nil {
continue // error parsing as groupReceiveEvent --> ignore
}
//check if group matches
if evGroupName != triggerGroupName {
continue // don't handle on group mismatch, but return without error
}
// check if received value matches
if evValue != triggerVal {
continue // don't handle on value mismatch, but return without error
}
//consume remaining events (shouldn't be necessary)
//for len(evtRcv.EventQueue) > 0 { <- evtRcv.EventQueue }
// if here, we have a hit and exit the loop without error
break Outer
}
case <- evtRcv.Ctx.Done():
// evvent Receiver cancelled or unregistered
err = errors.New("EventListener for WaitTriggerGroupReceive aborted")
break Outer
case <- rpcCtx.Done():
// evvent Receiver cancelled or unregistered
err = errors.New("RPC call to WaitTriggerGroupReceive aborted")
break Outer
}
}
/*
if err != nil {
fmt.Println("Aborted")
}
*/
return
}
func (s *server) FireActionGroupSend(ctx context.Context, gs *pb.ActionGroupSend) (e *pb.Empty, err error) {
e = &pb.Empty{}
s.rootSvc.SubSysEvent.Emit(ConstructEventTriggerGroupReceive(gs.GroupName, gs.Value))
return
}
func (s *server) DeployBluetoothSettings(ctx context.Context, settings *pb.BluetoothSettings) (resultSettings *pb.BluetoothSettings, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_BLUETOOTH))
//Overwrite default settings, in case the bluetooth sub system comes up later
s.rootSvc.SubSysBluetooth.ReplaceDefaultSettings(settings)
as := settings.As
ci := settings.Ci
resultSettings = &pb.BluetoothSettings{}
resultSettings.Ci,err = s.DeployBluetoothControllerInformation(ctx, ci)
if err != nil {
resultSettings.As,_ = s.GetBluetoothAgentSettings(ctx,&pb.Empty{})
return
}
resultSettings.As,err = s.DeployBluetoothAgentSettings(ctx, as)
return
}
func (s *server) StoreBluetoothSettings(ctx context.Context, req *pb.BluetoothRequestSettingsStorage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_BLUETOOTH_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Put(cSTORE_PREFIX_BLUETOOTH_SETTINGS + req.TemplateName, req.Settings, true)
return
}
func (s *server) GetStoredBluetoothSettings(ctx context.Context, templateName *pb.StringMessage) (result *pb.BluetoothSettings, err error) {
result = &pb.BluetoothSettings{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_BLUETOOTH_SETTINGS + templateName.Msg, result)
return
}
func (s *server) DeployStoredBluetoothSettings(ctx context.Context, templateName *pb.StringMessage) (e *pb.BluetoothSettings, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_BLUETOOTH))
bts,err := s.GetStoredBluetoothSettings(ctx,templateName)
if err != nil { return bts,err }
return s.DeployBluetoothSettings(ctx, bts)
}
func (s *server) DeleteStoredBluetoothSettings(ctx context.Context, templateName *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_BLUETOOTH_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Delete(cSTORE_PREFIX_BLUETOOTH_SETTINGS + templateName.Msg)
return
}
func (s *server) StoreDeployedBluetoothSettings(ctx context.Context, templateName *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_BLUETOOTH_SETTINGS_LIST))
e = &pb.Empty{}
currentSettings := &pb.BluetoothSettings{}
currentSettings.Ci,err = s.GetBluetoothControllerInformation(ctx, e)
if err != nil { return e,err }
currentSettings.As,err = s.GetBluetoothAgentSettings(ctx,e)
if err != nil { return e,err }
return s.StoreBluetoothSettings(ctx, &pb.BluetoothRequestSettingsStorage{
Settings: currentSettings,
TemplateName: templateName.Msg,
})
}
func (s *server) ListStoredBluetoothSettings(ctx context.Context, e *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
res,err := s.rootSvc.SubSysDataStore.KeysPrefix(cSTORE_PREFIX_BLUETOOTH_SETTINGS, true)
if err != nil { return sa,err }
sa.MsgArray = res
return
}
func (s *server) DeleteStoredUSBSettings(ctx context.Context, name *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_USB_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Delete(cSTORE_PREFIX_USB_SETTINGS + name.Msg)
return
}
func (s *server) DeleteStoredWifiSettings(ctx context.Context, name *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_WIFI_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Delete(cSTORE_PREFIX_WIFI_SETTINGS + name.Msg)
return
}
func (s *server) DeleteStoredEthernetInterfaceSettings(ctx context.Context, name *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_ETHERNET_INTERFACE_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Delete(cSTORE_PREFIX_ETHERNET_INTERFACE_SETTINGS + name.Msg)
return
}
func (s *server) DeleteStoredTriggerActionSet(ctx context.Context, name *pb.StringMessage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_TRIGGER_ACTION_SETS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Delete(cSTORE_PREFIX_TRIGGER_ACTION_SET + name.Msg)
return
}
func (s *server) DBBackup(ctx context.Context, filename *pb.StringMessage) (e *pb.Empty, err error) {
e = &pb.Empty{}
fname := filename.Msg
ext := filepath.Ext(fname)
if lext := strings.ToLower(ext); lext != ".db" {
fname = fname + ".db"
}
err = s.rootSvc.SubSysDataStore.Backup(common.PATH_DATA_STORE_BACKUP + "/" + fname)
return
}
func (s *server) DBRestore(ctx context.Context, filename *pb.StringMessage) (e *pb.Empty, err error) {
fmt.Println("DB restore: ", filename.Msg)
e = &pb.Empty{}
fname := filename.Msg
ext := filepath.Ext(fname)
if lext := strings.ToLower(ext); lext != ".db" {
fname = fname + ".db"
}
err = s.rootSvc.SubSysDataStore.Restore(common.PATH_DATA_STORE_BACKUP + "/" + fname, true)
return
}
func (s *server) ListStoredDBBackups(ctx context.Context, e *pb.Empty) (ma *pb.StringMessageArray, err error) {
ma = &pb.StringMessageArray{}
scripts,err := ListFilesOfFolder(common.PATH_DATA_STORE_BACKUP, ".db")
if err != nil { return ma,err }
ma.MsgArray = scripts
return
}
func (s *server) GetBluetoothAgentSettings(ctx context.Context, e *pb.Empty) (as *pb.BluetoothAgentSettings, err error) {
return s.rootSvc.SubSysBluetooth.GetBluetoothAgentSettings()
}
func (s *server) DeployBluetoothAgentSettings(ctx context.Context, src *pb.BluetoothAgentSettings) (res *pb.BluetoothAgentSettings, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_BLUETOOTH))
return s.rootSvc.SubSysBluetooth.DeployBluetoothAgentSettings(src)
}
// Unused, Server services are deployed via BluetoothControllerInformation
func (s *server) SetBluetoothNetworkService(ctx context.Context, btNwSvc *pb.BluetoothNetworkService) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_BLUETOOTH))
e = &pb.Empty{}
err = s.rootSvc.SubSysBluetooth.DeployBluetoothNetworkService(btNwSvc)
return
}
func (s *server) DeployBluetoothControllerInformation(ctx context.Context, newBtCiRpc *pb.BluetoothControllerInformation) (updateBtCiRpc *pb.BluetoothControllerInformation, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_BLUETOOTH))
return s.rootSvc.SubSysBluetooth.DeployBluetoothControllerInformation(newBtCiRpc)
}
func (s *server) GetBluetoothControllerInformation(ctx context.Context, e *pb.Empty) (res *pb.BluetoothControllerInformation, err error) {
res = &pb.BluetoothControllerInformation{}
return s.rootSvc.SubSysBluetooth.GetControllerInformation()
}
func (s *server) StoreUSBSettings(ctx context.Context, r *pb.USBRequestSettingsStorage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_USB_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Put(cSTORE_PREFIX_USB_SETTINGS + r.TemplateName, r.Settings, true)
return
}
func (s *server) GetStoredUSBSettings(ctx context.Context, m *pb.StringMessage) (gs *pb.GadgetSettings, err error) {
gs = &pb.GadgetSettings{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_USB_SETTINGS + m.Msg, gs)
return
}
func (s *server) DeployStoredUSBSettings(ctx context.Context, m *pb.StringMessage) (st *pb.GadgetSettings, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_USB))
ws,err := s.GetStoredUSBSettings(ctx,m)
if err != nil { return &pb.GadgetSettings{},err }
st,err = s.DeployGadgetSetting(ctx, ws)
return
}
func (s *server) StoreDeployedUSBSettings(ctx context.Context, m *pb.StringMessage) (e *pb.Empty, err error) {
gstate, err := s.rootSvc.SubSysUSB.ParseGadgetState(USB_GADGET_NAME)
if err != nil { return &pb.Empty{},err }
return s.StoreUSBSettings(ctx, &pb.USBRequestSettingsStorage{
Settings: gstate,
TemplateName: m.Msg,
})
}
func (s *server) ListStoredUSBSettings(ctx context.Context, e *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
res,err := s.rootSvc.SubSysDataStore.KeysPrefix(cSTORE_PREFIX_USB_SETTINGS, true)
if err != nil { return sa,err }
sa.MsgArray = res
return
}
func (s *server) ListStoredHIDScripts(context.Context, *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
scripts,err := ListFilesOfFolder(common.PATH_HID_SCRIPTS, ".js", ".javascript")
if err != nil { return sa,err }
sa.MsgArray = scripts
return
}
func (s *server) ListStoredBashScripts(context.Context, *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
scripts,err := ListFilesOfFolder(common.PATH_BASH_SCRIPTS, ".sh", ".bash")
if err != nil { return sa,err }
sa.MsgArray = scripts
return
}
func (s *server) DeployStoredTriggerActionSetReplace(ctx context.Context, msg *pb.StringMessage) (tas *pb.TriggerActionSet, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_TRIGGER_ACTIONS))
// load set from store
tas = &pb.TriggerActionSet{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_TRIGGER_ACTION_SET + msg.Msg, tas)
if err != nil { return }
return s.DeployTriggerActionSetReplace(ctx,tas)
}
func (s *server) DeployStoredTriggerActionSetAdd(ctx context.Context, msg *pb.StringMessage) (tas *pb.TriggerActionSet, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_TRIGGER_ACTIONS))
// load set from store
tas = &pb.TriggerActionSet{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_TRIGGER_ACTION_SET + msg.Msg, tas)
if err != nil { return }
return s.DeployTriggerActionSetAdd(ctx,tas)
}
func (s *server) StoreTriggerActionSet(ctx context.Context, set *pb.TriggerActionSet) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_TRIGGER_ACTION_SETS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Put(cSTORE_PREFIX_TRIGGER_ACTION_SET+ set.Name, set, true)
return
}
func (s *server) ListStoredTriggerActionSets(ctx context.Context, e *pb.Empty) (tas *pb.StringMessageArray, err error) {
tas = &pb.StringMessageArray{}
res, err := s.rootSvc.SubSysDataStore.KeysPrefix(cSTORE_PREFIX_TRIGGER_ACTION_SET, true)
if err != nil {
return tas, err
}
tas.MsgArray = res
return
}
func (s *server) GetDeployedTriggerActionSet(context.Context, *pb.Empty) (*pb.TriggerActionSet, error) {
return s.rootSvc.SubSysTriggerActions.GetCurrentTriggerActionSet(), nil
}
func (s *server) DeployTriggerActionSetReplace(ctx context.Context, tas *pb.TriggerActionSet) (resTas *pb.TriggerActionSet, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_TRIGGER_ACTIONS))
// Clear old set, but keep immutables
s.rootSvc.SubSysTriggerActions.ClearTriggerActions(true)
// Add the new set
_,err = s.DeployTriggerActionSetAdd(ctx, tas)
if err != nil { return s.rootSvc.SubSysTriggerActions.GetCurrentTriggerActionSet(),err }
return s.GetDeployedTriggerActionSet(ctx, &pb.Empty{})
}
func (s *server) DeployTriggerActionSetAdd(ctx context.Context, tas *pb.TriggerActionSet) (resTas *pb.TriggerActionSet, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_TRIGGER_ACTIONS))
addedTA := make([]*pb.TriggerAction, 0)
for _,ta := range tas.TriggerActions {
// we don't allow adding immutable settings via RPC call
if !ta.Immutable {
added,err := s.rootSvc.SubSysTriggerActions.AddTriggerAction(ta)
if err != nil { return s.rootSvc.SubSysTriggerActions.GetCurrentTriggerActionSet(),err }
addedTA = append(addedTA, added)
}
}
resTas = &pb.TriggerActionSet{TriggerActions:addedTA, Name: "Added TriggerActions"}
return
}
func (s *server) DeployTriggerActionSetRemove(ctx context.Context, removeTas *pb.TriggerActionSet) (removedTas *pb.TriggerActionSet, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_TRIGGER_ACTIONS))
removedOnes := make([]*pb.TriggerAction,0)
for _,removeTa := range removeTas.TriggerActions {
removed,err := s.rootSvc.SubSysTriggerActions.RemoveTriggerAction(removeTa)
if err != nil { return s.rootSvc.SubSysTriggerActions.GetCurrentTriggerActionSet(),err }
removedOnes = append(removedOnes, removed)
}
removedTas = &pb.TriggerActionSet{TriggerActions:removedOnes, Name:"removed TriggerActions"}
return
}
func (s *server) Start() error {
return nil
}
func (s *server) Stop() error {
return nil
}
func (s *server) StoreDeployedWifiSettings(ctx context.Context, m *pb.StringMessage) (e *pb.Empty, err error) {
//defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_WIFI_SETTINGS_LIST))
return s.StoreWifiSettings(ctx, &pb.WifiRequestSettingsStorage{
Settings: s.rootSvc.SubSysWifi.State.CurrentSettings,
TemplateName: m.Msg,
})
}
func (s *server) DeployStoredWifiSettings(ctx context.Context, m *pb.StringMessage) (st *pb.WiFiState, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_WIFI))
ws,err := s.GetStoredWifiSettings(ctx,m)
if err != nil { return &pb.WiFiState{},err }
return s.DeployWiFiSettings(ctx, ws)
}
func (s *server) StoreWifiSettings(ctx context.Context, r *pb.WifiRequestSettingsStorage) (e *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_WIFI_SETTINGS_LIST))
e = &pb.Empty{}
err = s.rootSvc.SubSysDataStore.Put(cSTORE_PREFIX_WIFI_SETTINGS + r.TemplateName, r.Settings, true)
return
}
func (s *server) GetStoredWifiSettings(ctx context.Context, m *pb.StringMessage) (ws *pb.WiFiSettings, err error) {
ws = &pb.WiFiSettings{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_WIFI_SETTINGS + m.Msg, ws)
return
}
func (s *server) ListStoredWifiSettings(ctx context.Context, e *pb.Empty) (sa *pb.StringMessageArray, err error) {
sa = &pb.StringMessageArray{}
res,err := s.rootSvc.SubSysDataStore.KeysPrefix(cSTORE_PREFIX_WIFI_SETTINGS, true)
if err != nil { return sa,err }
sa.MsgArray = res
return
}
func (s *server) DeployWiFiSettings(ctx context.Context, wset *pb.WiFiSettings) (wstate *pb.WiFiState, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_WIFI))
return s.rootSvc.SubSysWifi.DeploySettings(wset)
}
func (s *server) GetWiFiState(ctx context.Context, empty *pb.Empty) (wstate *pb.WiFiState, err error) {
// Update state before transmitting back
s.rootSvc.SubSysWifi.UpdateStateFromIw()
st := s.rootSvc.SubSysWifi.State
return st, nil
}
func (s *server) ListenWiFiStateChanges(ctx context.Context, empty *pb.Empty) (wstate *pb.WiFiState, err error) {
panic("implement me")
}
func (s *server) EchoRequest(ctx context.Context, req *pb.StringMessage) (resp *pb.StringMessage, err error) {
return &pb.StringMessage{Msg:req.Msg}, nil
}
func (s *server) EventListen(eReq *pb.EventRequest, eStream pb.P4WNP1_EventListenServer) (err error) {
//ToDo: check dependency from state (EvMgr initialized)
rcv := s.rootSvc.SubSysEvent.RegisterReceiver(eReq.ListenType)
for {
select {
case ev := <- rcv.EventQueue:
//fmt.Printf("Event dequed to send: %+v\n", ev)
//send Event to stream
err = eStream.Send(ev)
if err != nil {
rcv.Cancel()
log.Println(err)
return err
}
case <-eStream.Context().Done():
fmt.Println("Receiver aborted ...")
rcv.Cancel()
return errors.New("Event listening request aborted")
case <-rcv.Ctx.Done():
return errors.New("Service stopped event manager")
}
}
}
func (s *server) FSWriteFile(ctx context.Context, req *pb.WriteFileRequest) (empty *pb.Empty, err error) {
filePath := "/" + req.Filename
perm := os.ModePerm
switch req.Folder {
case pb.AccessibleFolder_TMP:
filePath = "/tmp" + filePath
case pb.AccessibleFolder_BASH_SCRIPTS:
filePath = common.PATH_BASH_SCRIPTS + filePath
perm = 0700
case pb.AccessibleFolder_HID_SCRIPTS:
filePath = common.PATH_HID_SCRIPTS + filePath
perm = 0600
default:
err = errors.New("Unknown folder")
return
}
return &pb.Empty{}, common.WriteFile(filePath, req.MustNotExist, req.Append, req.Data, perm)
}
func (s *server) FSReadFile(ctx context.Context, req *pb.ReadFileRequest) (resp *pb.ReadFileResponse, err error) {
//ToDo: check filename for path traversal attempts (don't care for security, currently - hey, we allow executing bash scripts as root - so what)
filePath := "/" + req.Filename
perm := os.ModePerm
switch req.Folder {
case pb.AccessibleFolder_TMP:
filePath = "/tmp" + filePath
case pb.AccessibleFolder_BASH_SCRIPTS:
filePath = common.PATH_BASH_SCRIPTS + filePath
perm = 0700
case pb.AccessibleFolder_HID_SCRIPTS:
filePath = common.PATH_HID_SCRIPTS + filePath
perm = 0600
default:
err = errors.New("Unknown folder")
return
}
chunk := make([]byte, req.Len)
n,err := common.ReadFile(filePath, req.Start, chunk, perm)
if err == io.EOF { err = nil } //we ignore eof error, as eof is indicated by n = 0
if err != nil { return nil,err }
resp = &pb.ReadFileResponse{ReadCount: int64(n), Data: chunk[:n]}
return
}
func (s *server) FSGetFileInfo(ctx context.Context, req *pb.FileInfoRequest) (resp *pb.FileInfoResponse, err error) {
fi, err := os.Stat(req.Path)
resp = &pb.FileInfoResponse{}
if err != nil { return }
resp.Name = fi.Name()
resp.IsDir = fi.IsDir()
resp.Mode = uint32(fi.Mode())
resp.ModTime = fi.ModTime().Unix()
resp.Size = fi.Size()
return
}
func (s *server) FSCreateTempDirOrFile(ctx context.Context, req *pb.TempDirOrFileRequest) (resp *pb.TempDirOrFileResponse, err error) {
resp = &pb.TempDirOrFileResponse{}
if req.OnlyFolder {
name, err := ioutil.TempDir(req.Dir, req.Prefix)
if err != nil { return resp, err }
resp.ResultPath = name
return resp, err
} else {
var f *os.File
f,err = ioutil.TempFile(req.Dir, req.Prefix)
if err != nil { return resp,err }
defer f.Close()
resp.ResultPath = f.Name()
return resp, err
}
}
func (s *server) HIDGetRunningJobState(ctx context.Context, req *pb.HIDScriptJob) (res *pb.HIDRunningJobStateResult, err error) {
targetJob,err := s.rootSvc.SubSysUSB.HidScriptGetBackgroundJobByID(int(req.Id))
if err != nil { return nil, err }
vmID,_ := targetJob.GetVMId() // ignore error, as VM ID would be -1 in error case
//try to convert source to string
source,ok := targetJob.Source.(string)
if !ok { source = "Couldn't retrieve job's script source" }
return &pb.HIDRunningJobStateResult{
Id: int64(targetJob.Id),
VmId: int64(vmID),
Source: source,
}, nil
}
func (s *server) HIDGetRunningScriptJobs(ctx context.Context, rEmpty *pb.Empty) (jobs *pb.HIDScriptJobList, err error) {
retJobs,err := s.rootSvc.SubSysUSB.HidScriptGetAllRunningBackgroundJobs()
if err != nil { return nil, err }
jobs = &pb.HIDScriptJobList{}
for _, aJob := range retJobs {
jobs.Ids = append(jobs.Ids, uint32(aJob.Id))
}
return
}
func (s *server) HIDCancelAllScriptJobs(ctx context.Context, rEmpty *pb.Empty) (empty *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_HID))
err = s.rootSvc.SubSysUSB.HidScriptCancelAllRunningBackgroundJobs()
return
}
func (s *server) HIDCancelScriptJob(ctx context.Context, sJob *pb.HIDScriptJob) (empty *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_HID))
empty = &pb.Empty{}
job,err := s.rootSvc.SubSysUSB.HidScriptGetBackgroundJobByID(int(sJob.Id))
if err != nil { return empty, err }
job.Cancel()
return
}
func (s *server) HIDRunScript(ctx context.Context, scriptReq *pb.HIDScriptRequest) (scriptRes *pb.HIDScriptResult, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_HID))
err = s.rootSvc.SubSysUSB.HidScriptUsable()
if err != nil { return }
scriptFile, err := ioutil.ReadFile(scriptReq.ScriptPath)
if err != nil {
return nil, errors.New(fmt.Sprintf("Couldn't load HIDScript '%s': %v\n", scriptReq.ScriptPath, err))
}
// ToDo: we don't retrieve the cancelFunc which should be called to free resources. Solution: use withCancel context and call cancel by go routine on timeout
if scriptReq.TimeoutSeconds > 0 { ctx,_ = context.WithTimeout(ctx, time.Second * time.Duration(scriptReq.TimeoutSeconds))}
val,err := s.rootSvc.SubSysUSB.HidScriptRun(ctx, string(scriptFile))
if err != nil { return nil,err }
if jsonVal,err := json.Marshal(val); err == nil {
scriptRes = &pb.HIDScriptResult{
IsFinished: true,
Job: &pb.HIDScriptJob{Id:0},
ResultJson: string(jsonVal),
}
return scriptRes,nil
} else {
return nil, errors.New(fmt.Sprintf("Script seems to have succeeded but result couldn't be converted to JSON: %v\n", err))
}
}
func (s *server) HIDRunScriptJob(ctx context.Context, scriptReq *pb.HIDScriptRequest) (rJob *pb.HIDScriptJob, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_HID))
err = s.rootSvc.SubSysUSB.HidScriptUsable()
if err != nil { return }
scriptFile, err := ioutil.ReadFile(scriptReq.ScriptPath)
if err != nil {
return nil, errors.New(fmt.Sprintf("Couldn't load HIDScript '%s': %v\n", scriptReq.ScriptPath, err))
}
//Note: Don't use the gRPC context, it would cancel after this call and thus interrupt the job immediately
jobCtx := context.Background()
// ToDo: we don't retrieve the cancelFunc which should be called to free resources. Solution: use withCancel context and call cancel by go routine on timeout
if scriptReq.TimeoutSeconds > 0 { jobCtx,_ = context.WithTimeout(jobCtx, time.Second * time.Duration(scriptReq.TimeoutSeconds))}
job,err := s.rootSvc.SubSysUSB.HidScriptStartBackground(jobCtx, string(scriptFile))
if err != nil { return nil,err }
rJob = &pb.HIDScriptJob{
Id: uint32(job.Id),
}
return rJob,nil
}
func (s *server) HIDGetScriptJobResult(ctx context.Context, sJob *pb.HIDScriptJob) (scriptRes *pb.HIDScriptResult, err error) {
// Try to find script
job,err := s.rootSvc.SubSysUSB.HidScriptGetBackgroundJobByID(int(sJob.Id))
if err != nil { return nil, err }
val,err := s.rootSvc.SubSysUSB.HidScriptWaitBackgroundJobResult(ctx, job)
if err != nil { return nil,err }
jsonVal,err := json.Marshal(val)
if err != nil {
return nil, errors.New(fmt.Sprintf("Script seems to have succeeded but result couldn't be converted to JSON: %v\n", err))
}
scriptRes = &pb.HIDScriptResult{
IsFinished: true,
Job: &pb.HIDScriptJob{Id:0},
ResultJson: string(jsonVal),
}
return scriptRes,nil
}
func (s *server) GetDeployedEthernetInterfaceSettings(ctx context.Context, req *pb.StringMessage) (resp *pb.EthernetInterfaceSettings, err error) {
if mi,err := s.rootSvc.SubSysNetwork.GetManagedInterface(req.Msg); err == nil {
return mi.GetState().CurrentSettings, nil
} else {
return nil, errors.New(fmt.Sprintf("No stored (or used) settings for ethernet interface '%s'", req.Msg))
}
/*
if settings,exist := ServiceState.StoredNetworkSettings[req.Msg]; exist && settings.SettingsInUse {
return settings, nil
} else {
return nil, errors.New(fmt.Sprintf("No stored (or used) settings for ethernet interface '%s'", req.Msg))
}
*/
}
func (s *server) GetAllDeployedEthernetInterfaceSettings(ctx context.Context, empty *pb.Empty) (resp *pb.DeployedEthernetInterfaceSettings, err error) {
miList := s.rootSvc.SubSysNetwork.GetManagedInterfaceNames()
deployed := make([]*pb.EthernetInterfaceSettings,len(miList))
for idx,name := range miList {
mi,err := s.rootSvc.SubSysNetwork.GetManagedInterface(name)
if err != nil { return nil,err }
deployed[idx] = mi.GetState().CurrentSettings
}
resp = &pb.DeployedEthernetInterfaceSettings{
List: deployed,
}
return resp, nil
}
func (s *server) DeployEthernetInterfaceSettings(ctx context.Context, es *pb.EthernetInterfaceSettings) (empty *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_NETWORK))
log.Printf("Trying to deploy ethernet interface settings %v\n", es)
empty = &pb.Empty{}
iname := es.Name
nim,err := s.rootSvc.SubSysNetwork.GetManagedInterface(iname)
if err != nil { return empty,err }
err = nim.DeploySettings(es)
if err != nil {
log.Printf("Error deploying ethernet interface settings %v\n", err)
}
return
}
func (s *server) StoreEthernetInterfaceSettings(ctx context.Context, req *pb.EthernetRequestSettingsStorage) (empty *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_STORED_ETHERNET_INTERFACE_SETTINGS_LIST))
empty = &pb.Empty{}
ifName := req.Settings.Name
storageKey := cSTORE_PREFIX_ETHERNET_INTERFACE_SETTINGS + ifName + "_" + req.TemplateName
err = s.rootSvc.SubSysDataStore.Put(storageKey, req.Settings, true)
return
}
func (s *server) GetStoredEthernetInterfaceSettings(ctx context.Context, m *pb.StringMessage) (eis *pb.EthernetInterfaceSettings, err error) {
eis = &pb.EthernetInterfaceSettings{}
err = s.rootSvc.SubSysDataStore.Get(cSTORE_PREFIX_ETHERNET_INTERFACE_SETTINGS + m.Msg, eis)
return
}
func (s *server) DeployStoredEthernetInterfaceSettings(ctx context.Context, msg *pb.StringMessage) (empty *pb.Empty, err error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_HID))
eis,err := s.GetStoredEthernetInterfaceSettings(ctx, msg)
if err != nil { return empty,err }
return s.DeployEthernetInterfaceSettings(ctx, eis)
}
func (s *server) ListStoredEthernetInterfaceSettings(ctx context.Context, empty *pb.Empty) (messages *pb.StringMessageArray, err error) {
messages = &pb.StringMessageArray{}
res,err := s.rootSvc.SubSysDataStore.KeysPrefix(cSTORE_PREFIX_ETHERNET_INTERFACE_SETTINGS, true)
if err != nil { return messages,err }
messages.MsgArray = res
return
}
func (s *server) MountUMSFile(ctx context.Context, gsu *pb.GadgetSettingsUMS) (*pb.Empty, error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_USB))
log.Printf("Trying to mount iamge `%s` to UMS ...", gsu.File)
err := MountUMSFile(gsu.File)
return nil, err
}
func (s *server) GetDeployedGadgetSetting(ctx context.Context, e *pb.Empty) (gs *pb.GadgetSettings, err error) {
log.Printf("Called get deployed gadget settings\n")
gs, err = s.rootSvc.SubSysUSB.ParseGadgetState(USB_GADGET_NAME)
if err != nil {
log.Printf("Error parsing current gadget config: %v", err)
return
}
gs.DevPathHidKeyboard = s.rootSvc.SubSysUSB.State.DevicePath[USB_FUNCTION_HID_KEYBOARD_name]
gs.DevPathHidMouse = s.rootSvc.SubSysUSB.State.DevicePath[USB_FUNCTION_HID_MOUSE_name]
gs.DevPathHidRaw = s.rootSvc.SubSysUSB.State.DevicePath[USB_FUNCTION_HID_RAW_name]
return
}
func (s *server) DeployGadgetSetting(ctx context.Context, newGs *pb.GadgetSettings) (gs *pb.GadgetSettings, err error) {
log.Printf("Called DeployGadgetSettings\n")
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_USB))
gs_backup,_ := s.rootSvc.SubSysUSB.ParseGadgetState(USB_GADGET_NAME)
errg := s.rootSvc.SubSysUSB.DeployGadgetSettings(newGs)
err = nil
if errg != nil {
err = errors.New(fmt.Sprintf("Deploying new gadget settings failed, reverted to old ones: %v", errg))
s.rootSvc.SubSysUSB.DeployGadgetSettings(gs_backup) //We don't catch the error, as the old settings should have been working
}
gs, _ = s.rootSvc.SubSysUSB.ParseGadgetState(USB_GADGET_NAME) //Return settings from deployed gadget
return
}
func (s *server) GetLEDSettings(context.Context, *pb.Empty) (res *pb.LEDSettings, err error) {
// res, err = ServiceState.Led.GetLed()
state := s.rootSvc.SubSysLed.GetState()
res = &pb.LEDSettings{
BlinkCount: *state.BlinkCount,
}
log.Printf("GetLEDSettings, result: %+v", res)
return
}
func (s *server) SetLEDSettings(ctx context.Context, ls *pb.LEDSettings) (*pb.Empty, error) {
defer s.rootSvc.SubSysEvent.Emit(ConstructEventNotifyStateChange(common_web.STATE_CHANGE_EVT_TYPE_LED))
log.Printf("SetLEDSettings %+v", ls)
s.rootSvc.SubSysLed.DeploySettings(ls)
return &pb.Empty{}, nil
}
/*
func StartRpcServer(host string, port string) {
listen_address := host + ":" + port
//Open TCP listener
log.Printf("P4wnP1 RPC server listening on " + listen_address)
lis, err := net.Listen("tcp", listen_address)
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
//Create gRPC Server
s := grpc.NewServer()
pb.RegisterP4WNP1Server(s, &server{})
if err := s.Serve(lis); err != nil {
log.Fatalf("Failed to serve: %v", err)
}
}
*/
func folderReader(fn http.Handler) http.HandlerFunc {
return func(w http.ResponseWriter, req *http.Request) {
if strings.HasSuffix(req.URL.Path, "/") {
// Use contents of index.html for directory, if present.
req.URL.Path = path.Join(req.URL.Path, "index.html")
}
fn.ServeHTTP(w, req)
}
}
/*
func StartRpcWebServer(host string, port string) {
//Create gRPC Server
s := grpc.NewServer()
pb.RegisterP4WNP1Server(s, &server{})
//grpc_web_srv := grpcweb.WrapServer(s, grpcweb.WithWebsockets(true)) //Wrap server to improbable grpc-web with websockets
grpc_web_srv := grpcweb.WrapServer(s) //Wrap server to improbable grpc-web with websockets
http_handler := func(resp http.ResponseWriter, req *http.Request) {
grpc_web_srv.ServeHTTP(resp, req)
}
listen_address := host + ":" + port
http_srv := &http.Server{
Addr: listen_address,
Handler: http.HandlerFunc(http_handler),
//ReadHeaderTimeout: 5*time.Second,
//IdleTimeout: 120*time.Second,
}
//Open TCP listener
log.Printf("P4wnP1 gRPC-web server listening on " + listen_address)
log.Fatal(http_srv.ListenAndServe())
}
*/
func (srv *server) StartRpcServerAndWeb(host string, gRPCPort string, webPort string, absWebRoot string) () {
//ToDo: Return servers/TCP listener to allow closing from caller
listen_address_grpc := host + ":" + gRPCPort
listen_address_web := host + ":" + webPort
//Create gRPC Server
s := grpc.NewServer()
pb.RegisterP4WNP1Server(s, srv)
//Open TCP listener
lis, err := net.Listen("tcp", listen_address_grpc)
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
// run gRPC server in go routine
go func() {
if err := s.Serve(lis); err != nil {
log.Fatalf("Failed to serve: %v", err)
}
}()
log.Printf("P4wnP1 gRPC server listening on " + listen_address_grpc)
//Wrap the server into a gRPC-web server
grpc_web_srv := grpcweb.WrapServer(s, grpcweb.WithWebsockets(true)) //Wrap server to improbable grpc-web with websockets
//define a handler for a HTTP web server using the gRPC-web proxy
http_gRPC_web_handler := func(resp http.ResponseWriter, req *http.Request) {
//fmt.Printf("===========\nRequest: %s\n %v\n=============\n", req)
if strings.Contains(req.Header.Get("Content-Type"), "application/grpc") ||
req.Method == "OPTIONS" ||
strings.Contains(req.Header.Get("Sec-Websocket-Protocol"), "grpc-websockets") {
//fmt.Printf("gRPC-web req:\n %v\n", req)
grpc_web_srv.ServeHTTP(resp, req) // if content type indicates grpc or REQUEST METHOD IS OPTIONS (pre-flight) serve gRPC-web
} else {
fmt.Printf("legacy web req: %v\n", req.RequestURI)
http.FileServer(http.Dir((absWebRoot))).ServeHTTP(resp, req)
}
}
//Setup our HTTP server
http_srv := &http.Server{
Addr: listen_address_web, //listen on port 80 with webservice
Handler: http.HandlerFunc(http_gRPC_web_handler),
ReadHeaderTimeout: 5*time.Second,
IdleTimeout: 120*time.Second,
}
go func() {
if err_http := http_srv.ListenAndServe(); err_http != nil {
log.Fatal(err)
}
}()
log.Printf("P4wnP1 gRPC-web server listening on " + http_srv.Addr)
}