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package commands
import (
"context"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"time"
"github.com/99designs/gqlgen/graphql/playground"
"github.com/gorilla/mux"
"github.com/phayes/freeport"
"github.com/skratchdot/open-golang/open"
"github.com/spf13/cobra"
"github.com/MichaelMure/git-bug/api/auth"
"github.com/MichaelMure/git-bug/api/graphql"
httpapi "github.com/MichaelMure/git-bug/api/http"
"github.com/MichaelMure/git-bug/cache"
"github.com/MichaelMure/git-bug/identity"
"github.com/MichaelMure/git-bug/repository"
"github.com/MichaelMure/git-bug/webui"
)
var (
webUIPort int
webUIOpen bool
webUINoOpen bool
webUIReadOnly bool
)
const webUIOpenConfigKey = "git-bug.webui.open"
func runWebUI(cmd *cobra.Command, args []string) error {
if webUIPort == 0 {
var err error
webUIPort, err = freeport.GetFreePort()
if err != nil {
return err
}
}
addr := fmt.Sprintf("127.0.0.1:%d", webUIPort)
webUiAddr := fmt.Sprintf("http://%s", addr)
router := mux.NewRouter()
// If the webUI is not read-only, use an authentication middleware with a
// fixed identity: the default user of the repo
// TODO: support dynamic authentication with OAuth
if !webUIReadOnly {
author, err := identity.GetUserIdentity(repo)
if err != nil {
return err
}
router.Use(auth.Middleware(author.Id()))
}
mrc := cache.NewMultiRepoCache()
_, err := mrc.RegisterDefaultRepository(repo)
if err != nil {
return err
}
graphqlHandler := graphql.NewHandler(mrc)
// Routes
router.Path("/playground").Handler(playground.Handler("git-bug", "/graphql"))
router.Path("/graphql").Handler(graphqlHandler)
router.Path("/gitfile/{repo}/{hash}").Handler(httpapi.NewGitFileHandler(mrc))
router.Path("/upload/{repo}").Methods("POST").Handler(httpapi.NewGitUploadFileHandler(mrc))
router.PathPrefix("/").Handler(webui.NewHandler())
srv := &http.Server{
Addr: addr,
Handler: router,
}
done := make(chan bool)
quit := make(chan os.Signal, 1)
// register as handler of the interrupt signal to trigger the teardown
signal.Notify(quit, os.Interrupt)
go func() {
<-quit
fmt.Println("WebUI is shutting down...")
ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
defer cancel()
srv.SetKeepAlivesEnabled(false)
if err := srv.Shutdown(ctx); err != nil {
log.Fatalf("Could not gracefully shutdown the WebUI: %v\n", err)
}
// Teardown
err := graphqlHandler.Close()
if err != nil {
fmt.Println(err)
}
close(done)
}()
fmt.Printf("Web UI: %s\n", webUiAddr)
fmt.Printf("Graphql API: http://%s/graphql\n", addr)
fmt.Printf("Graphql Playground: http://%s/playground\n", addr)
fmt.Println("Press Ctrl+c to quit")
configOpen, err := repo.LocalConfig().ReadBool(webUIOpenConfigKey)
if err == repository.ErrNoConfigEntry {
// default to true
configOpen = true
} else if err != nil {
return err
}
shouldOpen := (configOpen && !webUINoOpen) || webUIOpen
if shouldOpen {
err = open.Run(webUiAddr)
if err != nil {
fmt.Println(err)
}
}
err = srv.ListenAndServe()
if err != nil && err != http.ErrServerClosed {
return err
}
<-done
fmt.Println("WebUI stopped")
return nil
}
var webUICmd = &cobra.Command{
Use: "webui",
Short: "Launch the web UI.",
Long: `Launch the web UI.
Available git config:
git-bug.webui.open [bool]: control the automatic opening of the web UI in the default browser
`,
PreRunE: loadRepo,
RunE: runWebUI,
}
func init() {
RootCmd.AddCommand(webUICmd)
webUICmd.Flags().SortFlags = false
webUICmd.Flags().BoolVar(&webUIOpen, "open", false, "Automatically open the web UI in the default browser")
webUICmd.Flags().BoolVar(&webUINoOpen, "no-open", false, "Prevent the automatic opening of the web UI in the default browser")
webUICmd.Flags().IntVarP(&webUIPort, "port", "p", 0, "Port to listen to (default is random)")
webUICmd.Flags().BoolVar(&webUIReadOnly, "read-only", false, "Whether to run the web UI in read-only mode")
}
|
