mirror of
https://github.com/ddworken/hishtory.git
synced 2024-11-23 08:45:16 +01:00
350 lines
8.6 KiB
Go
350 lines
8.6 KiB
Go
package lib
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import (
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_ "embed"
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"os/user"
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"path"
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"path/filepath"
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"strconv"
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"strings"
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"time"
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"net/http"
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"github.com/fatih/color"
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"github.com/google/uuid"
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"github.com/rodaine/table"
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"github.com/ddworken/hishtory/shared"
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)
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var (
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//go:embed config.sh
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CONFIG_SH_CONTENTS string
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)
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func getCwd() (string, error) {
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cwd, err := os.Getwd()
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if err != nil {
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return "", fmt.Errorf("failed to get cwd for last command: %v", err)
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}
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homedir, err := os.UserHomeDir()
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if err != nil {
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return "", fmt.Errorf("failed to get user's home directory: %v", err)
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}
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if cwd == homedir {
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return "~/", nil
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}
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if strings.HasPrefix(cwd, homedir) {
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return strings.Replace(cwd, homedir, "~", 1), nil
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}
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return cwd, nil
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}
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func BuildHistoryEntry(args []string) (*shared.HistoryEntry, error) {
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var entry shared.HistoryEntry
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// exitCode
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exitCode, err := strconv.Atoi(args[2])
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if err != nil {
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return nil, fmt.Errorf("failed to build history entry: %v", err)
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}
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entry.ExitCode = exitCode
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// user
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user, err := user.Current()
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if err != nil {
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return nil, fmt.Errorf("failed to build history entry: %v", err)
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}
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entry.LocalUsername = user.Username
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// cwd
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cwd, err := getCwd()
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if err != nil {
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return nil, fmt.Errorf("failed to build history entry: %v", err)
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}
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entry.CurrentWorkingDirectory = cwd
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// start time
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nanos, err := strconv.ParseInt(args[4], 10, 64)
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if err != nil {
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return nil, fmt.Errorf("failed to parse start time %s as int: %v", args[4], err)
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}
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entry.StartTime = time.Unix(0, nanos)
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// end time
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entry.EndTime = time.Now()
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// command
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cmd, err := getLastCommand(args[3])
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if err != nil {
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return nil, fmt.Errorf("failed to build history entry: %v", err)
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}
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entry.Command = cmd
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// hostname
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hostname, err := os.Hostname()
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if err != nil {
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return nil, fmt.Errorf("failed to build history entry: %v", err)
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}
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entry.Hostname = hostname
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return &entry, nil
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}
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func getLastCommand(history string) (string, error) {
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return strings.TrimSpace(strings.SplitN(strings.TrimSpace(history), " ", 2)[1]), nil
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}
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func GetUserSecret() (string, error) {
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config, err := GetConfig()
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if err != nil {
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return "", err
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}
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return config.UserSecret, nil
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}
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func Setup(args []string) error {
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userSecret := uuid.Must(uuid.NewRandom()).String()
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if len(args) > 2 && args[2] != "" {
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userSecret = args[2]
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}
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fmt.Println("Setting secret hishtory key to " + string(userSecret))
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var config ClientConfig
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config.UserSecret = userSecret
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config.IsEnabled = true
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config.DeviceId = uuid.Must(uuid.NewRandom()).String()
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err := SetConfig(config)
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if err != nil {
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return fmt.Errorf("failed to persist config to disk: %v", err)
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}
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_, err = http.Get(GetServerHostname()+"/api/v1/eregister?user_id=" + shared.UserId(userSecret) + "&device_id=" + config.DeviceId)
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if err != nil {
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return fmt.Errorf("failed to register device with backend: %v", err)
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}
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return nil
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}
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func DisplayResults(results []*shared.HistoryEntry, displayHostname bool) {
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headerFmt := color.New(color.FgGreen, color.Underline).SprintfFunc()
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tbl := table.New("CWD", "Timestamp", "Runtime", "Exit Code", "Command")
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if displayHostname {
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tbl = table.New("Hostname", "CWD", "Timestamp", "Runtime", "Exit Code", "Command")
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}
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tbl.WithHeaderFormatter(headerFmt)
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for _, result := range results {
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timestamp := result.StartTime.Format("Jan 2 2006 15:04:05 MST")
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duration := result.EndTime.Sub(result.StartTime).Round(time.Millisecond).String()
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if displayHostname {
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tbl.AddRow(result.Hostname, result.CurrentWorkingDirectory, timestamp, duration, result.ExitCode, result.Command)
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} else {
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tbl.AddRow(result.CurrentWorkingDirectory, timestamp, duration, result.ExitCode, result.Command)
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}
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}
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tbl.Print()
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}
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type ClientConfig struct {
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UserSecret string `json:"user_secret"`
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IsEnabled bool `json:"is_enabled"`
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DeviceId string `json:"device_id"`
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}
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func GetConfig() (ClientConfig, error) {
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homedir, err := os.UserHomeDir()
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if err != nil {
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return ClientConfig{}, fmt.Errorf("failed to retrieve homedir: %v", err)
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}
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data, err := os.ReadFile(path.Join(homedir, shared.HISHTORY_PATH, shared.CONFIG_PATH))
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if err != nil {
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return ClientConfig{}, fmt.Errorf("failed to read config file: %v", err)
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}
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var config ClientConfig
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err = json.Unmarshal(data, &config)
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if err != nil {
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return ClientConfig{}, fmt.Errorf("failed to parse config file: %v", err)
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}
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return config, nil
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}
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func SetConfig(config ClientConfig) error {
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serializedConfig, err := json.Marshal(config)
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if err != nil {
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return fmt.Errorf("failed to serialize config: %v", err)
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}
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homedir, err := os.UserHomeDir()
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if err != nil {
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return fmt.Errorf("failed to retrieve homedir: %v", err)
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}
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clientDir := path.Join(homedir, shared.HISHTORY_PATH)
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err = os.MkdirAll(clientDir, 0744)
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if err != nil {
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return fmt.Errorf("failed to create ~/.hishtory/ folder: %v", err)
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}
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err = os.WriteFile(path.Join(homedir, shared.HISHTORY_PATH, shared.CONFIG_PATH), serializedConfig, 0600)
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if err != nil {
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return fmt.Errorf("failed to write config: %v", err)
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}
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return nil
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}
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func IsEnabled() (bool, error) {
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config, err := GetConfig()
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if err != nil {
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return false, err
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}
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return config.IsEnabled, nil
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}
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func Enable() error {
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config, err := GetConfig()
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if err != nil {
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return err
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}
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config.IsEnabled = true
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return SetConfig(config)
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}
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func Disable() error {
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config, err := GetConfig()
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if err != nil {
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return err
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}
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config.IsEnabled = false
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return SetConfig(config)
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}
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func CheckFatalError(err error) {
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if err != nil {
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log.Fatalf("hishtory fatal error: %v", err)
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}
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}
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func Install() error {
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homedir, err := os.UserHomeDir()
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if err != nil {
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return fmt.Errorf("failed to get user's home directory: %v", err)
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}
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clientDir := path.Join(homedir, shared.HISHTORY_PATH)
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err = os.MkdirAll(clientDir, 0744)
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if err != nil {
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return fmt.Errorf("failed to create folder for hishtory binary: %v", err)
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}
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path, err := installBinary(homedir)
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if err != nil {
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return err
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}
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err = configureBashrc(homedir, path)
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if err != nil {
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return err
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}
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_, err = GetConfig()
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if err != nil {
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// No config, so set up a new installation
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return Setup(os.Args)
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}
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return nil
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}
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func configureBashrc(homedir, binaryPath string) error {
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// Create the file we're going to source in our bashrc. Do this no matter what in case there are updates to it.
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bashConfigPath := path.Join(filepath.Dir(binaryPath), "config.sh")
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err := ioutil.WriteFile(bashConfigPath, []byte(CONFIG_SH_CONTENTS), 0644)
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if err != nil {
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return fmt.Errorf("failed to write config.sh file: %v", err)
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}
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// Check if we need to configure the bashrc
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bashrc, err := ioutil.ReadFile(path.Join(homedir, ".bashrc"))
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if err != nil {
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return fmt.Errorf("failed to read bashrc: %v", err)
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}
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if strings.Contains(string(bashrc), "# Hishtory Config:") {
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return nil
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}
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// Add to bashrc
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f, err := os.OpenFile(path.Join(homedir, ".bashrc"), os.O_APPEND|os.O_WRONLY, 0644)
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if err != nil {
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return fmt.Errorf("failed to append to bashrc: %v", err)
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}
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defer f.Close()
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_, err = f.WriteString("\n# Hishtory Config:\nexport PATH=\"$PATH:" + filepath.Dir(binaryPath) + "\"\nsource " + bashConfigPath + "\n")
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if err != nil {
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return fmt.Errorf("failed to append to bashrc: %v", err)
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}
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return nil
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}
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func installBinary(homedir string) (string, error) {
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clientPath, err := exec.LookPath("hishtory")
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if err != nil {
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clientPath = path.Join(homedir, shared.HISHTORY_PATH, "hishtory")
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}
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err = copyFile(os.Args[0], clientPath)
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if err != nil {
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return "", fmt.Errorf("failed to copy hishtory binary to $PATH: %v", err)
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}
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err = os.Chmod(clientPath, 0700)
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if err != nil {
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return "", fmt.Errorf("failed to set permissions on hishtory binary: %v", err)
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}
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return clientPath, nil
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}
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func copyFile(src, dst string) error {
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sourceFileStat, err := os.Stat(src)
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if err != nil {
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return err
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}
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if !sourceFileStat.Mode().IsRegular() {
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return fmt.Errorf("%s is not a regular file", src)
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}
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source, err := os.Open(src)
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if err != nil {
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return err
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}
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defer source.Close()
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destination, err := os.Create(dst)
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if err != nil {
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return err
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}
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defer destination.Close()
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_, err = io.Copy(destination, source)
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return err
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}
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func Update(url string) error {
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var stdout bytes.Buffer
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var stderr bytes.Buffer
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cmd := exec.Command("bash", "-c", "curl -o /tmp/hishtory-client "+url+"; chmod +x /tmp/hishtory-client; /tmp/hishtory-client install")
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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if err != nil {
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return fmt.Errorf("Failed to update: %v, stdout=%+v, stderr=%+v", err, stdout.String(), stderr.String())
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}
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return nil
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}
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func GetServerHostname() string {
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if server := os.Getenv("HISHTORY_SERVER"); server != "" {
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return server
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}
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return "http://localhost:8080"
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} |