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main.go
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main.go
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//go:generate bash -c "mkdir -p codegen && go run github.com/deepmap/oapi-codegen/cmd/oapi-codegen@v1.12.4 -generate types,server,spec -package codegen api/openapi.yaml > codegen/api.go"
//go:generate bash -c "mkdir -p codegen/message_bus && go run github.com/deepmap/oapi-codegen/cmd/oapi-codegen@v1.12.4 -generate types,client -package message_bus https://raw.githubusercontent.com/IceWhaleTech/CasaOS-MessageBus/main/api/message_bus/openapi.yaml > codegen/message_bus/api.go"
package main
import (
"context"
_ "embed"
"flag"
"fmt"
"log"
"net"
"net/http"
"os"
"path/filepath"
"time"
"github.com/IceWhaleTech/CasaOS-Common/model"
"github.com/IceWhaleTech/CasaOS-Common/utils/constants"
"github.com/IceWhaleTech/CasaOS-Common/utils/logger"
"github.com/fsnotify/fsnotify"
"github.com/robfig/cron/v3"
util_http "github.com/IceWhaleTech/CasaOS-Common/utils/http"
"github.com/IceWhaleTech/CasaOS-Installer/codegen"
"github.com/IceWhaleTech/CasaOS-Installer/common"
"github.com/IceWhaleTech/CasaOS-Installer/internal/config"
"github.com/IceWhaleTech/CasaOS-Installer/route"
"github.com/IceWhaleTech/CasaOS-Installer/service"
"github.com/IceWhaleTech/CasaOS-Installer/types"
"github.com/coreos/go-systemd/daemon"
"go.uber.org/zap"
)
var (
commit = "private build"
date = "private build"
//go:embed api/index.html
_docHTML string
//go:embed api/openapi.yaml
_docYAML string
sysRoot = "/"
//go:embed build/sysroot/etc/casaos/installer.conf.sample
_confSample string
)
func main() {
// create config
{
// create default config file if not exist
ConfigFilePath := filepath.Join(constants.DefaultConfigPath, common.InstallerName+"."+common.InstallerConfigType)
if _, err := os.Stat(ConfigFilePath); os.IsNotExist(err) {
fmt.Println("config file not exist, create it")
// create config file
file, err := os.Create(ConfigFilePath)
if err != nil {
panic(err)
}
defer file.Close()
// write default config
_, err = file.WriteString(_confSample)
if err != nil {
panic(err)
}
}
}
// parse arguments and intialize
{
configFlag := flag.String("c", "", "config file path")
versionFlag := flag.Bool("v", false, "version")
flag.Parse()
if *versionFlag {
fmt.Printf("v%s\n", common.InstallerVersion)
os.Exit(0)
}
println("git commit:", commit)
println("build date:", date)
config.InitSetup(*configFlag)
logger.LogInit(config.AppInfo.LogPath, config.AppInfo.LogSaveName, config.AppInfo.LogFileExt)
service.MyService = service.NewService(config.CommonInfo.RuntimePath)
}
service.InstallerService = &service.StatusService{
ImplementService: service.NewInstallerService(sysRoot),
SysRoot: sysRoot,
}
go service.StartFallbackWebsite()
service.InstallerService.MigrationInLaunch(sysRoot)
// 这里应该还要把文件删一下
service.InstallerService.PostMigration(sysRoot)
// watch rauc offline
{
// 这个是临时放这里,为了watch里不会没有东西。
os.MkdirAll(service.RAUC_OFFLINE_PATH, os.ModePerm)
watcher, err := fsnotify.NewWatcher()
if err != nil {
log.Fatal(err)
}
defer watcher.Close()
// Start listening for events.
go func() {
for {
select {
case event, ok := <-watcher.Events:
if !ok {
return
}
if event.Has(fsnotify.Create) {
log.Println("modified file:", event.Name)
service.InstallerService = service.NewInstallerService(sysRoot) // 这里能不能优化一下?
}
if event.Has(fsnotify.Remove) {
log.Println("modified file:", event.Name)
service.InstallerService = service.NewInstallerService(sysRoot)
}
case err, ok := <-watcher.Errors:
if !ok {
return
}
log.Println("error:", err)
}
}
}()
// Add a path.
err = watcher.Add(filepath.Join(sysRoot, service.RAUC_OFFLINE_PATH))
if err != nil {
log.Fatal(err)
}
}
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
mux := &util_http.HandlerMultiplexer{
HandlerMap: map[string]http.Handler{
"v2": route.InitV2Router(),
"doc": route.InitV2DocRouter(_docHTML, _docYAML),
},
}
go service.StopFallbackWebsite()
// notify systemd that we are ready
{
if supported, err := daemon.SdNotify(false, daemon.SdNotifyReady); err != nil {
logger.Error("Failed to notify systemd that installer service is ready", zap.Any("error", err))
} else if supported {
logger.Info("Notified systemd that installer service is ready")
} else {
logger.Info("This process is not running as a systemd service.")
}
}
// 上面notify之后,才有必要去注册
go func() {
for {
// register at message bus
if messageBus, err := service.MyService.MessageBus(); err != nil {
logger.Info("error when trying to connect to message bus... skipping", zap.Error(err))
} else {
response, err := messageBus.RegisterEventTypesWithResponse(ctx, common.EventTypes)
if err != nil {
logger.Error("error when trying to register one or more event types - some event type will not be discoverable", zap.Error(err))
}
if response != nil && response.StatusCode() != http.StatusOK {
logger.Error("error when trying to register one or more event types - some event type will not be discoverable", zap.String("status", response.Status()), zap.String("body", string(response.Body)))
}
break
}
}
time.Sleep(10 * time.Second)
}()
// initialize routers and register at gateway
listener, err := net.Listen("tcp", net.JoinHostPort(common.Localhost, "0"))
if err != nil {
panic(err)
}
go func() {
for {
// initialize routers and register at gateway
if gateway, err := service.MyService.Gateway(); err != nil {
logger.Info("error when trying to connect to gateway... skipping", zap.Error(err))
} else {
apiPaths := []string{
route.V2APIPath,
route.V2DocPath,
}
for _, apiPath := range apiPaths {
if err := gateway.CreateRoute(&model.Route{
Path: apiPath,
Target: "http://" + listener.Addr().String(),
}); err != nil {
panic(err)
}
}
fmt.Println("gateway register success")
break
}
time.Sleep(10 * time.Second)
}
}()
s := &http.Server{
Handler: mux,
ReadHeaderTimeout: 5 * time.Second, // fix G112: Potential slowloris attack (see https://github.com/securego/gosec)
}
{
crontab := cron.New(cron.WithSeconds())
go cronjob(ctx) // run once immediately
if _, err := crontab.AddFunc("@every 20m", func() { cronjob(ctx) }); err != nil {
panic(err)
}
// every 10 seconds for debug
if _, err := crontab.AddFunc("@every 1s", func() {
}); err != nil {
panic(err)
}
crontab.Start()
defer crontab.Stop()
}
logger.Info("installer service is listening...", zap.String("address", listener.Addr().String()))
if err := s.Serve(listener); err != nil {
panic(err)
}
}
func cronjob(ctx context.Context) {
status, _ := service.GetStatus()
if status.Status == codegen.Downloading {
return
}
if status.Status == codegen.Installing {
return
}
// release, err := service.GetRelease(ctx, service.GetReleaseBranch(sysRoot))
ctx = context.WithValue(ctx, types.Trigger, types.CRON_JOB)
release, err := service.InstallerService.GetRelease(ctx, service.GetReleaseBranch(sysRoot))
if err != nil {
logger.Error("error when trying to get release", zap.Error(err))
return
}
// cache release packages if not already cached
shouldUpgrade := service.InstallerService.ShouldUpgrade(*release, sysRoot)
isUpgradable := service.InstallerService.IsUpgradable(*release, sysRoot)
if shouldUpgrade && !isUpgradable {
logger.Info("error while verifying release - continue to download", zap.Error(err))
releaseFilePath, err := service.InstallerService.DownloadRelease(ctx, *release, true)
if err != nil {
logger.Error("error when trying to download release", zap.Error(err))
return
}
logger.Info("downloaded release", zap.String("release file path", releaseFilePath))
} else {
fmt.Println("不需要更新")
fmt.Println("service.ShouldUpgrade", shouldUpgrade)
fmt.Println("service.IsUpgradable", isUpgradable)
}
}