itd/socket.go

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/*
* itd uses bluetooth low energy to communicate with InfiniTime devices
* Copyright (C) 2021 Arsen Musayelyan
*
* 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 main
import (
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"context"
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"errors"
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"io"
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"net"
"os"
"path/filepath"
"time"
"github.com/rs/zerolog/log"
"go.arsenm.dev/infinitime"
"go.arsenm.dev/infinitime/blefs"
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"go.arsenm.dev/itd/api"
"go.arsenm.dev/lrpc/codec"
"go.arsenm.dev/lrpc/server"
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)
var (
ErrDFUInvalidFile = errors.New("provided file is invalid for given upgrade type")
ErrDFUNotEnoughFiles = errors.New("not enough files provided for given upgrade type")
ErrDFUInvalidUpgType = errors.New("invalid upgrade type")
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)
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func startSocket(ctx context.Context, dev *infinitime.Device) error {
// Make socket directory if non-existant
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err := os.MkdirAll(filepath.Dir(k.String("socket.path")), 0755)
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if err != nil {
return err
}
// Remove old socket if it exists
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err = os.RemoveAll(k.String("socket.path"))
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if err != nil {
return err
}
// Listen on socket path
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ln, err := net.Listen("unix", k.String("socket.path"))
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if err != nil {
return err
}
fs, err := dev.FS()
if err != nil {
log.Warn().Err(err).Msg("Error getting BLE filesystem")
}
srv := server.New()
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itdAPI := &ITD{
dev: dev,
}
err = srv.Register(itdAPI)
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if err != nil {
return err
}
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fsAPI := &FS{
dev: dev,
fs: fs,
}
err = srv.Register(fsAPI)
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if err != nil {
return err
}
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go srv.Serve(ctx, ln, codec.Default)
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// Log socket start
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log.Info().Str("path", k.String("socket.path")).Msg("Started control socket")
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return nil
}
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type ITD struct {
dev *infinitime.Device
}
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func (i *ITD) HeartRate(_ *server.Context) (uint8, error) {
return i.dev.HeartRate()
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}
func (i *ITD) WatchHeartRate(ctx *server.Context) error {
ch, err := ctx.MakeChannel()
if err != nil {
return err
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}
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heartRateCh, err := i.dev.WatchHeartRate(ctx)
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if err != nil {
return err
}
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go func() {
// For every heart rate value
for heartRate := range heartRateCh {
ch <- heartRate
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}
}()
return nil
}
func (i *ITD) BatteryLevel(_ *server.Context) (uint8, error) {
return i.dev.BatteryLevel()
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}
func (i *ITD) WatchBatteryLevel(ctx *server.Context) error {
ch, err := ctx.MakeChannel()
if err != nil {
return err
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}
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battLevelCh, err := i.dev.WatchBatteryLevel(ctx)
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if err != nil {
return err
}
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go func() {
// For every heart rate value
for battLevel := range battLevelCh {
ch <- battLevel
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}
}()
return nil
}
func (i *ITD) Motion(_ *server.Context) (infinitime.MotionValues, error) {
return i.dev.Motion()
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}
func (i *ITD) WatchMotion(ctx *server.Context) error {
ch, err := ctx.MakeChannel()
if err != nil {
return err
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}
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motionValsCh, err := i.dev.WatchMotion(ctx)
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if err != nil {
return err
}
go func() {
// For every heart rate value
for motionVals := range motionValsCh {
ch <- motionVals
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}
}()
return nil
}
func (i *ITD) StepCount(_ *server.Context) (uint32, error) {
return i.dev.StepCount()
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}
func (i *ITD) WatchStepCount(ctx *server.Context) error {
ch, err := ctx.MakeChannel()
if err != nil {
return err
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}
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stepCountCh, err := i.dev.WatchStepCount(ctx)
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if err != nil {
return err
}
go func() {
// For every heart rate value
for stepCount := range stepCountCh {
ch <- stepCount
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}
}()
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return nil
}
func (i *ITD) Version(_ *server.Context) (string, error) {
return i.dev.Version()
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}
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func (i *ITD) Address(_ *server.Context) string {
return i.dev.Address()
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}
func (i *ITD) Notify(_ *server.Context, data api.NotifyData) error {
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return i.dev.Notify(data.Title, data.Body)
}
func (i *ITD) SetTime(_ *server.Context, t *time.Time) error {
return i.dev.SetTime(*t)
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}
func (i *ITD) WeatherUpdate(_ *server.Context) {
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sendWeatherCh <- struct{}{}
}
func (i *ITD) FirmwareUpgrade(ctx *server.Context, reqData api.FwUpgradeData) error {
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i.dev.DFU.Reset()
switch reqData.Type {
case api.UpgradeTypeArchive:
// If less than one file, return error
if len(reqData.Files) < 1 {
return ErrDFUNotEnoughFiles
}
// If file is not zip archive, return error
if filepath.Ext(reqData.Files[0]) != ".zip" {
return ErrDFUInvalidFile
}
// Load DFU archive
err := i.dev.DFU.LoadArchive(reqData.Files[0])
if err != nil {
return err
}
case api.UpgradeTypeFiles:
// If less than two files, return error
if len(reqData.Files) < 2 {
return ErrDFUNotEnoughFiles
}
// If first file is not init packet, return error
if filepath.Ext(reqData.Files[0]) != ".dat" {
return ErrDFUInvalidFile
}
// If second file is not firmware image, return error
if filepath.Ext(reqData.Files[1]) != ".bin" {
return ErrDFUInvalidFile
}
// Load individual DFU files
err := i.dev.DFU.LoadFiles(reqData.Files[0], reqData.Files[1])
if err != nil {
return err
}
default:
return ErrDFUInvalidUpgType
}
ch, err := ctx.MakeChannel()
if err != nil {
return err
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}
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go func() {
// For every progress event
for event := range i.dev.DFU.Progress() {
ch <- event
}
firmwareUpdating = false
// Send zero object to signal completion
close(ch)
}()
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// Set firmwareUpdating
firmwareUpdating = true
go func() {
// Start DFU
err := i.dev.DFU.Start()
if err != nil {
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log.Error().Err(err).Msg("Error while upgrading firmware")
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firmwareUpdating = false
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return
}
}()
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return nil
}
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type FS struct {
dev *infinitime.Device
fs *blefs.FS
}
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func (fs *FS) RemoveAll(_ *server.Context, paths []string) error {
fs.updateFS()
for _, path := range paths {
err := fs.fs.RemoveAll(path)
if err != nil {
return err
}
}
return nil
}
func (fs *FS) Remove(_ *server.Context, paths []string) error {
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fs.updateFS()
for _, path := range paths {
err := fs.fs.Remove(path)
if err != nil {
return err
}
}
return nil
}
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func (fs *FS) Rename(_ *server.Context, paths [2]string) error {
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fs.updateFS()
return fs.fs.Rename(paths[0], paths[1])
}
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func (fs *FS) MkdirAll(_ *server.Context, paths []string) error {
fs.updateFS()
for _, path := range paths {
err := fs.fs.MkdirAll(path)
if err != nil {
return err
}
}
return nil
}
func (fs *FS) Mkdir(_ *server.Context, paths []string) error {
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fs.updateFS()
for _, path := range paths {
err := fs.fs.Mkdir(path)
if err != nil {
return err
}
}
return nil
}
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func (fs *FS) ReadDir(_ *server.Context, dir string) ([]api.FileInfo, error) {
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fs.updateFS()
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entries, err := fs.fs.ReadDir(dir)
if err != nil {
return nil, err
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}
var fileInfo []api.FileInfo
for _, entry := range entries {
info, err := entry.Info()
if err != nil {
return nil, err
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}
fileInfo = append(fileInfo, api.FileInfo{
Name: info.Name(),
Size: info.Size(),
IsDir: info.IsDir(),
})
}
return fileInfo, nil
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}
func (fs *FS) Upload(ctx *server.Context, paths [2]string) error {
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fs.updateFS()
localFile, err := os.Open(paths[1])
if err != nil {
return err
}
localInfo, err := localFile.Stat()
if err != nil {
return err
}
remoteFile, err := fs.fs.Create(paths[0], uint32(localInfo.Size()))
if err != nil {
return err
}
ch, err := ctx.MakeChannel()
if err != nil {
return err
}
go func() {
// For every progress event
for sent := range remoteFile.Progress() {
ch <- api.FSTransferProgress{
Total: remoteFile.Size(),
Sent: sent,
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}
}
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// Send zero object to signal completion
close(ch)
}()
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go func() {
io.Copy(remoteFile, localFile)
localFile.Close()
remoteFile.Close()
}()
return nil
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}
func (fs *FS) Download(ctx *server.Context, paths [2]string) error {
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fs.updateFS()
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localFile, err := os.Create(paths[0])
if err != nil {
return err
}
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remoteFile, err := fs.fs.Open(paths[1])
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if err != nil {
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return err
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}
ch, err := ctx.MakeChannel()
if err != nil {
return err
}
go func() {
// For every progress event
for sent := range remoteFile.Progress() {
ch <- api.FSTransferProgress{
Total: remoteFile.Size(),
Sent: sent,
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}
}
// Send zero object to signal completion
close(ch)
localFile.Close()
remoteFile.Close()
}()
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go io.Copy(localFile, remoteFile)
return nil
}
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func (fs *FS) LoadResources(ctx *server.Context, path string) error {
resFl, err := os.Open(path)
if err != nil {
return err
}
progCh, err := infinitime.LoadResources(resFl, fs.fs)
if err != nil {
return err
}
ch, err := ctx.MakeChannel()
if err != nil {
return err
}
go func() {
for evt := range progCh {
ch <- evt
}
close(ch)
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}()
return nil
}
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func (fs *FS) updateFS() {
if fs.fs == nil || updateFS {
// Get new FS
newFS, err := fs.dev.FS()
if err != nil {
log.Warn().Err(err).Msg("Error updating BLE filesystem")
} else {
// Set FS pointer to new FS
fs.fs = newFS
// Reset updateFS
updateFS = false
}
}
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}