]> git.r.bdr.sh - rbdr/mobius/blobdiff - cmd/mobius-hotline-server/main.go
Extensive refactor, quality of life enhancements
[rbdr/mobius] / cmd / mobius-hotline-server / main.go
index bf64848b7bd40b95b5bce16d04cbcf5a32947eb2..04b3c57a3597920b5a15a06df7b4d2c4748d6908 100644 (file)
@@ -7,21 +7,22 @@ import (
        "flag"
        "fmt"
        "github.com/jhalter/mobius/hotline"
+       "github.com/jhalter/mobius/internal/mobius"
        "gopkg.in/natefinch/lumberjack.v2"
        "io"
        "log"
        "log/slog"
        "net/http"
        "os"
+       "os/signal"
+       "path"
        "path/filepath"
-       "runtime"
+       "syscall"
 )
 
 //go:embed mobius/config
 var cfgTemplate embed.FS
 
-const defaultPort = 5500
-
 var logLevels = map[string]slog.Level{
        "debug": slog.LevelDebug,
        "info":  slog.LevelInfo,
@@ -36,31 +37,18 @@ var (
 )
 
 func main() {
-       ctx, _ := context.WithCancel(context.Background())
-
-       // TODO: implement graceful shutdown by closing context
-       //c := make(chan os.Signal, 1)
-       //signal.Notify(c, os.Interrupt)
-       //defer func() {
-       //      signal.Stop(c)
-       //      cancel()
-       //}()
-       //go func() {
-       //      select {
-       //      case <-c:
-       //              cancel()
-       //      case <-ctx.Done():
-       //      }
-       //}()
+       ctx, cancel := context.WithCancel(context.Background())
+
+       sigChan := make(chan os.Signal, 1)
+       signal.Notify(sigChan, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGINT, os.Interrupt)
 
        netInterface := flag.String("interface", "", "IP addr of interface to listen on.  Defaults to all interfaces.")
-       basePort := flag.Int("bind", defaultPort, "Base Hotline server port.  File transfer port is base port + 1.")
+       basePort := flag.Int("bind", 5500, "Base Hotline server port.  File transfer port is base port + 1.")
        statsPort := flag.String("stats-port", "", "Enable stats HTTP endpoint on address and port")
-       configDir := flag.String("config", defaultConfigPath(), "Path to config root")
-       printVersion := flag.Bool("version", false, "print version and exit")
+       configDir := flag.String("config", configSearchPaths(), "Path to config root")
+       printVersion := flag.Bool("version", false, "Print version and exit")
        logLevel := flag.String("log-level", "info", "Log level")
        logFile := flag.String("log-file", "", "Path to log file")
-
        init := flag.Bool("init", false, "Populate the config dir with default configuration")
 
        flag.Parse()
@@ -82,14 +70,15 @@ func main() {
                ),
        )
 
+       // It's important for Windows compatibility to use path.Join and not filepath.Join for the config dir initialization.
+       // https://github.com/golang/go/issues/44305
        if *init {
-               if _, err := os.Stat(filepath.Join(*configDir, "/config.yaml")); os.IsNotExist(err) {
+               if _, err := os.Stat(path.Join(*configDir, "/config.yaml")); os.IsNotExist(err) {
                        if err := os.MkdirAll(*configDir, 0750); err != nil {
                                slogger.Error(fmt.Sprintf("error creating config dir: %s", err))
                                os.Exit(1)
                        }
-
-                       if err := copyDir("mobius/config", *configDir); err != nil {
+                       if err := copyDir(path.Join("mobius", "config"), *configDir); err != nil {
                                slogger.Error(fmt.Sprintf("error copying config dir: %s", err))
                                os.Exit(1)
                        }
@@ -99,23 +88,94 @@ func main() {
                }
        }
 
-       if _, err := os.Stat(*configDir); os.IsNotExist(err) {
-               slogger.Error("Configuration directory not found.  Correct the path or re-run with -init to generate initial config.")
+       config, err := mobius.LoadConfig(path.Join(*configDir, "config.yaml"))
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading config: %v", err))
                os.Exit(1)
        }
 
-       srv, err := hotline.NewServer(*configDir, *netInterface, *basePort, slogger, &hotline.OSFileStore{})
+       srv, err := hotline.NewServer(
+               hotline.WithInterface(*netInterface),
+               hotline.WithLogger(slogger),
+               hotline.WithPort(*basePort),
+               hotline.WithConfig(*config),
+       )
        if err != nil {
                slogger.Error(fmt.Sprintf("Error starting server: %s", err))
                os.Exit(1)
        }
 
-       sh := statHandler{hlServer: srv}
+       srv.MessageBoard, err = mobius.NewFlatNews(path.Join(*configDir, "MessageBoard.txt"))
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading message board: %v", err))
+               os.Exit(1)
+       }
+
+       srv.BanList, err = mobius.NewBanFile(path.Join(*configDir, "Banlist.yaml"))
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading ban list: %v", err))
+               os.Exit(1)
+       }
+
+       srv.ThreadedNewsMgr, err = mobius.NewThreadedNewsYAML(path.Join(*configDir, "ThreadedNews.yaml"))
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading news: %v", err))
+               os.Exit(1)
+       }
+
+       srv.AccountManager, err = mobius.NewYAMLAccountManager(filepath.Join(*configDir, "Users/"))
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading accounts: %v", err))
+               os.Exit(1)
+       }
+
+       srv.Agreement, err = mobius.NewAgreement(*configDir, "\r")
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading agreement: %v", err))
+               os.Exit(1)
+       }
+
+       bannerPath := filepath.Join(*configDir, config.BannerFile)
+       srv.Banner, err = os.ReadFile(bannerPath)
+       if err != nil {
+               slogger.Error(fmt.Sprintf("Error loading accounts: %v", err))
+               os.Exit(1)
+       }
+
+       reloadFunc := func() {
+               if err := srv.MessageBoard.(*mobius.FlatNews).Reload(); err != nil {
+                       slogger.Error("Error reloading news", "err", err)
+               }
+
+               if err := srv.BanList.(*mobius.BanFile).Load(); err != nil {
+                       slogger.Error("Error reloading ban list", "err", err)
+               }
+
+               if err := srv.ThreadedNewsMgr.(*mobius.ThreadedNewsYAML).Load(); err != nil {
+                       slogger.Error("Error reloading threaded news list", "err", err)
+               }
+
+               if err := srv.Agreement.(*mobius.Agreement).Reload(); err != nil {
+                       slogger.Error(fmt.Sprintf("Error reloading agreement: %v", err))
+                       os.Exit(1)
+               }
+       }
+
+       reloadHandler := func(reloadFunc func()) func(w http.ResponseWriter, _ *http.Request) {
+               return func(w http.ResponseWriter, _ *http.Request) {
+                       reloadFunc()
+
+                       _, _ = io.WriteString(w, `{ "msg": "config reloaded" }`)
+               }
+       }
+
+       sh := APIHandler{hlServer: srv}
        if *statsPort != "" {
                http.HandleFunc("/", sh.RenderStats)
+               http.HandleFunc("/api/v1/stats", sh.RenderStats)
+               http.HandleFunc("/api/v1/reload", reloadHandler(reloadFunc))
 
                go func(srv *hotline.Server) {
-                       // Use the default DefaultServeMux.
                        err = http.ListenAndServe(":"+*statsPort, nil)
                        if err != nil {
                                log.Fatal(err)
@@ -123,21 +183,42 @@ func main() {
                }(srv)
        }
 
+       go func() {
+               for {
+                       sig := <-sigChan
+                       switch sig {
+                       case syscall.SIGHUP:
+                               slogger.Info("SIGHUP received.  Reloading configuration.")
+
+                               reloadFunc()
+                       default:
+                               signal.Stop(sigChan)
+                               cancel()
+                               os.Exit(0)
+                       }
+
+               }
+       }()
+
        slogger.Info("Hotline server started",
                "version", version,
+               "config", *configDir,
                "API port", fmt.Sprintf("%s:%v", *netInterface, *basePort),
                "Transfer port", fmt.Sprintf("%s:%v", *netInterface, *basePort+1),
        )
 
+       // Assign functions to handle specific Hotline transaction types
+       mobius.RegisterHandlers(srv)
+
        // Serve Hotline requests until program exit
        log.Fatal(srv.ListenAndServe(ctx))
 }
 
-type statHandler struct {
+type APIHandler struct {
        hlServer *hotline.Server
 }
 
-func (sh *statHandler) RenderStats(w http.ResponseWriter, _ *http.Request) {
+func (sh *APIHandler) RenderStats(w http.ResponseWriter, _ *http.Request) {
        u, err := json.Marshal(sh.hlServer.CurrentStats())
        if err != nil {
                panic(err)
@@ -146,43 +227,14 @@ func (sh *statHandler) RenderStats(w http.ResponseWriter, _ *http.Request) {
        _, _ = io.WriteString(w, string(u))
 }
 
-func defaultConfigPath() string {
-       var cfgPath string
-
-       switch runtime.GOOS {
-       case "windows":
-               cfgPath = "config/"
-       case "darwin":
-               if _, err := os.Stat("/usr/local/var/mobius/config/"); err == nil {
-                       cfgPath = "/usr/local/var/mobius/config/"
-               } else if _, err := os.Stat("/opt/homebrew/var/mobius/config"); err == nil {
-                       cfgPath = "/opt/homebrew/var/mobius/config/"
+func configSearchPaths() string {
+       for _, cfgPath := range mobius.ConfigSearchOrder {
+               if _, err := os.Stat(cfgPath); err == nil {
+                       return cfgPath
                }
-       case "linux":
-               cfgPath = "/usr/local/var/mobius/config/"
-       default:
-               cfgPath = "./config/"
-       }
-
-       return cfgPath
-}
-
-// copyFile copies a file from src to dst. If dst does not exist, it is created.
-func copyFile(src, dst string) error {
-       sourceFile, err := os.Open(src)
-       if err != nil {
-               return err
        }
-       defer sourceFile.Close()
 
-       destinationFile, err := os.Create(dst)
-       if err != nil {
-               return err
-       }
-       defer destinationFile.Close()
-
-       _, err = io.Copy(destinationFile, sourceFile)
-       return err
+       return "config"
 }
 
 // copyDir recursively copies a directory tree, attempting to preserve permissions.
@@ -193,33 +245,33 @@ func copyDir(src, dst string) error {
        }
        for _, dirEntry := range entries {
                if dirEntry.IsDir() {
-                       if err := os.MkdirAll(filepath.Join(dst, dirEntry.Name()), 0777); err != nil {
+                       if err := os.MkdirAll(path.Join(dst, dirEntry.Name()), 0777); err != nil {
                                panic(err)
                        }
-                       subdirEntries, _ := cfgTemplate.ReadDir(filepath.Join(src, dirEntry.Name()))
+                       subdirEntries, _ := cfgTemplate.ReadDir(path.Join(src, dirEntry.Name()))
                        for _, subDirEntry := range subdirEntries {
-                               f, err := os.Create(filepath.Join(dst, dirEntry.Name(), subDirEntry.Name()))
+                               f, err := os.Create(path.Join(dst, dirEntry.Name(), subDirEntry.Name()))
                                if err != nil {
                                        return err
                                }
 
-                               srcFile, err := cfgTemplate.Open(filepath.Join(src, dirEntry.Name(), subDirEntry.Name()))
+                               srcFile, err := cfgTemplate.Open(path.Join(src, dirEntry.Name(), subDirEntry.Name()))
                                if err != nil {
-                                       return err
+                                       return fmt.Errorf("error copying srcFile: %w", err)
                                }
                                _, err = io.Copy(f, srcFile)
                                if err != nil {
                                        return err
                                }
-                               f.Close()
+                               _ = f.Close()
                        }
                } else {
-                       f, err := os.Create(filepath.Join(dst, dirEntry.Name()))
+                       f, err := os.Create(path.Join(dst, dirEntry.Name()))
                        if err != nil {
                                return err
                        }
 
-                       srcFile, err := cfgTemplate.Open(filepath.Join(src, dirEntry.Name()))
+                       srcFile, err := cfgTemplate.Open(path.Join(src, dirEntry.Name()))
                        if err != nil {
                                return err
                        }
@@ -227,7 +279,7 @@ func copyDir(src, dst string) error {
                        if err != nil {
                                return err
                        }
-                       f.Close()
+                       _ = f.Close()
                }
        }