diff options
Diffstat (limited to 'internal/server/handlers/runcommand.go')
| -rw-r--r-- | internal/server/handlers/runcommand.go | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/internal/server/handlers/runcommand.go b/internal/server/handlers/runcommand.go deleted file mode 100644 index 8e5895b..0000000 --- a/internal/server/handlers/runcommand.go +++ /dev/null @@ -1,111 +0,0 @@ -package handlers - -import ( - "context" - "errors" - "fmt" - "io/ioutil" - "os" - "os/exec" - "strings" - "sync" - "time" - - "github.com/mimecast/dtail/internal/config" - "github.com/mimecast/dtail/internal/io/logger" - "github.com/mimecast/dtail/internal/io/run" -) - -type runCommand struct { - server *ServerHandler - run run.Run -} - -func newRunCommand(server *ServerHandler) runCommand { - return runCommand{ - server: server, - } -} - -func (r runCommand) StartBackground(ctx context.Context, wg *sync.WaitGroup, argc int, args, outerArgs []string) error { - if argc < 2 { - return fmt.Errorf("%s: args:%v argc:%d", commandParseWarning, args, argc) - } - - ec := make(chan int, 1) - var pid int - var err error - - command := strings.Join(args[1:], " ") - if strings.Contains(command, ";") || strings.Contains(command, "\n") { - if pid, err = r.startScript(ctx, wg, ec, command, outerArgs); err != nil { - r.server.sendServerMessage(".run exitstatus 255") - return err - } - return nil - } - - if pid, err = r.start(ctx, wg, ec, strings.TrimSpace(command), outerArgs); err != nil { - r.server.sendServerMessage(".run exitstatus 255") - return err - } - - exitCode := <-ec - r.server.sendServerMessage(fmt.Sprintf(".run exitstatus %d", exitCode)) - r.server.sendServerMessage(logger.Info(fmt.Sprintf("Process %d exited with status %d", pid, exitCode))) - - return nil -} - -func (r runCommand) startScript(ctx context.Context, wg *sync.WaitGroup, ec chan<- int, script string, outerArgs []string) (int, error) { - if _, err := os.Stat(config.Common.TmpDir); os.IsNotExist(err) { - return -1, err - } - - timestamp := time.Now().UnixNano() - scriptPath := fmt.Sprintf("%s/%s_%v.sh", config.Common.TmpDir, r.server.user.Name, timestamp) - - // TODO: On dserver startup delete all previously written scripts (there might be left overs due to a crash or so) - logger.Debug(r.server.user, "Writing temp script", scriptPath) - - script = fmt.Sprintf("#!/bin/sh\n%s", script) - if err := ioutil.WriteFile(scriptPath, []byte(script), 0700); err != nil { - return -1, err - } - - pid, err := r.start(ctx, wg, ec, scriptPath, outerArgs) - go func() { - wg.Wait() - logger.Debug("Deleting script", scriptPath) - os.Remove(scriptPath) - }() - - return pid, err -} - -func (r runCommand) start(ctx context.Context, wg *sync.WaitGroup, ec chan<- int, command string, outerArgs []string) (int, error) { - if len(command) == 0 { - return -1, errors.New("Empty command provided") - } - - splitted := strings.Split(command, " ") - path := splitted[0] - args := splitted[1:] - args = append(args, outerArgs...) - - qualifiedPath, err := exec.LookPath(path) - if err != nil { - return -1, err - } - - if !r.server.user.HasFilePermission(qualifiedPath, "runcommands") { - return -1, fmt.Errorf("No permission to execute path: %s", qualifiedPath) - } - - r.run = run.New(qualifiedPath, args) - pid, err := r.run.StartBackground(ctx, wg, ec, r.server.lines) - if err != nil { - return pid, err - } - return pid, nil -} |
