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145 lines
3.8 KiB
Go
145 lines
3.8 KiB
Go
package cmd
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import (
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"fmt"
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"net"
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"net/http"
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"os"
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"os/signal"
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"path"
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"strings"
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"syscall"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/spf13/cobra"
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myssh "github.com/webmeisterei/lql_api/internal/ssh"
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"github.com/webmeisterei/lql_api/lql"
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"golang.org/x/crypto/ssh"
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"golang.org/x/crypto/ssh/agent"
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swaggerFiles "github.com/swaggo/files"
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ginSwagger "github.com/swaggo/gin-swagger"
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ginlogrus "github.com/toorop/gin-logrus"
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// Docs for gin swagger
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_ "github.com/webmeisterei/lql_api/docs"
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log "github.com/sirupsen/logrus"
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)
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func init() {
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sshServerCmd.Flags().StringP("socket", "s", "/opt/omd/sites/{site}/tmp/run/live", "Socket on the Server")
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sshServerCmd.Flags().BoolP("debug", "d", false, "Enable Debug on stderr")
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sshServerCmd.Flags().StringP("ssh-user", "U", "root", "SSH User")
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sshServerCmd.Flags().StringP("ssh-keyfile", "k", "~/.ssh/id_rsa", "Keyfile")
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sshServerCmd.Flags().StringP("ssh-password", "p", "", "Password")
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rootCmd.AddCommand(sshServerCmd)
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}
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var sshServerCmd = &cobra.Command{
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Use: "sshserver [site] [server]",
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Short: "SSH LQL Server",
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Long: `SSH LQL Server
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This version connects to the Check_MK Server by SSH.
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If you don't provide ssh-keyfile and ssh-password I will use your local agent.
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`,
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Args: cobra.ExactArgs(2),
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Run: func(cmd *cobra.Command, args []string) {
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sReplacer := strings.NewReplacer("{site}", args[0])
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destSocket := sReplacer.Replace(cmd.Flag("socket").Value.String())
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localSocket := path.Join(os.TempDir(), "lql-client.sock")
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var tunnel *myssh.Tunnel
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var lqlClient *lql.Client
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logger := log.New()
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logger.SetOutput(os.Stderr)
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if !cmd.Flag("debug").Changed {
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logger.SetLevel(log.InfoLevel)
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} else {
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logger.SetLevel(log.TraceLevel)
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}
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logger.WithFields(log.Fields{"destSocket": destSocket, "localSocket": localSocket}).Debug("Sockets")
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sigc := make(chan os.Signal, 1)
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signal.Notify(sigc, os.Interrupt, os.Kill, syscall.SIGTERM)
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go func(c chan os.Signal) {
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// Wait for a SIGINT or SIGKILL:
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sig := <-c
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logger.WithFields(log.Fields{"signal": sig}).Info("Caught signal shutting down.")
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// Stop listening (and unlink the socket if unix type):
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if lqlClient != nil {
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lqlClient.Close()
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}
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if tunnel != nil {
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tunnel.Close()
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}
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os.Exit(1)
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}(sigc)
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if cmd.Flag("ssh-password").Changed {
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tunnel = myssh.NewTunnel(
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fmt.Sprintf("%s@%s", cmd.Flag("ssh-user").Value.String(), args[1]),
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[]ssh.AuthMethod{ssh.Password(cmd.Flag("ssh-password").Value.String())},
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localSocket,
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destSocket,
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)
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} else if cmd.Flag("ssh-password").Changed {
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tunnel = myssh.NewTunnel(
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fmt.Sprintf("%s@%s", cmd.Flag("ssh-user").Value.String(), args[1]),
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[]ssh.AuthMethod{myssh.PrivateKeyFile(cmd.Flag("ssh-keyfile").Value.String())},
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localSocket,
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destSocket,
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)
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} else {
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conn, err := net.Dial("unix", os.Getenv("SSH_AUTH_SOCK"))
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if err != nil {
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log.Fatal(err)
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}
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defer conn.Close()
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ag := agent.NewClient(conn)
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auths := []ssh.AuthMethod{ssh.PublicKeysCallback(ag.Signers)}
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tunnel = myssh.NewTunnel(
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fmt.Sprintf("%s@%s", cmd.Flag("ssh-user").Value.String(), args[1]),
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auths,
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localSocket,
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destSocket,
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)
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}
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tunnel.SetLogger(logger)
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go tunnel.Start()
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defer tunnel.Close()
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time.Sleep(500 * time.Millisecond)
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lqlClient, err := lql.NewClient(1, 1, "unix", localSocket)
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if err != nil {
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logger.WithField("error", err).Error()
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return
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}
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defer lqlClient.Close()
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lqlClient.SetLogger(logger)
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// gin.SetMode(gin.ReleaseMode)
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r := gin.New()
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r.Use(ginlogrus.Logger(logger), gin.Recovery())
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url := ginSwagger.URL("/swagger/doc.json") // The url pointing to API definition
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r.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler, url))
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r.GET("/", func(c *gin.Context) {
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c.Redirect(http.StatusPermanentRedirect, "/swagger/index.html")
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})
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logger.Debug("Starting the API Server")
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r.Run(":8080")
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},
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}
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