hishtory/client/hctx/hctx.go

265 lines
7.5 KiB
Go

package hctx
import (
"context"
"encoding/json"
"errors"
"fmt"
"os"
"path"
"sync"
"time"
"github.com/ddworken/hishtory/client/data"
"github.com/google/uuid"
"github.com/sirupsen/logrus"
"gopkg.in/natefinch/lumberjack.v2"
"gorm.io/gorm"
"gorm.io/gorm/logger"
// Needed to use sqlite without CGO
"github.com/glebarez/sqlite"
)
var (
hishtoryLogger *logrus.Logger
getLoggerOnce sync.Once
)
func GetLogger() *logrus.Logger {
getLoggerOnce.Do(func() {
homedir, err := os.UserHomeDir()
if err != nil {
panic(fmt.Errorf("failed to get user's home directory: %v", err))
}
err = MakeHishtoryDir()
if err != nil {
panic(err)
}
lumberjackLogger := &lumberjack.Logger{
Filename: path.Join(homedir, data.GetHishtoryPath(), "hishtory.log"),
MaxSize: 1, // MB
MaxBackups: 10,
MaxAge: 30, // days
}
logFormatter := new(logrus.TextFormatter)
logFormatter.TimestampFormat = time.RFC3339
logFormatter.FullTimestamp = true
hishtoryLogger = logrus.New()
hishtoryLogger.SetFormatter(logFormatter)
hishtoryLogger.SetLevel(logrus.InfoLevel)
hishtoryLogger.SetOutput(lumberjackLogger)
})
return hishtoryLogger
}
func MakeHishtoryDir() error {
homedir, err := os.UserHomeDir()
if err != nil {
return fmt.Errorf("failed to get user's home directory: %v", err)
}
err = os.MkdirAll(path.Join(homedir, data.GetHishtoryPath()), 0o744)
if err != nil {
return fmt.Errorf("failed to create ~/%s dir: %v", data.GetHishtoryPath(), err)
}
return nil
}
func OpenLocalSqliteDb() (*gorm.DB, error) {
homedir, err := os.UserHomeDir()
if err != nil {
return nil, fmt.Errorf("failed to get user's home directory: %v", err)
}
err = MakeHishtoryDir()
if err != nil {
return nil, err
}
newLogger := logger.New(
GetLogger().WithField("fromSQL", true),
logger.Config{
SlowThreshold: 100 * time.Millisecond,
LogLevel: logger.Warn,
IgnoreRecordNotFoundError: false,
Colorful: false,
},
)
dbFilePath := path.Join(homedir, data.GetHishtoryPath(), data.DB_PATH)
dsn := fmt.Sprintf("file:%s?mode=rwc&_journal_mode=WAL", dbFilePath)
db, err := gorm.Open(sqlite.Open(dsn), &gorm.Config{SkipDefaultTransaction: true, Logger: newLogger})
if err != nil {
return nil, fmt.Errorf("failed to connect to the DB: %v", err)
}
tx, err := db.DB()
if err != nil {
return nil, err
}
err = tx.Ping()
if err != nil {
return nil, err
}
db.AutoMigrate(&data.HistoryEntry{})
db.Exec("PRAGMA journal_mode = WAL")
db.Exec("CREATE INDEX IF NOT EXISTS end_time_index ON history_entries(end_time)")
return db, nil
}
type hishtoryContextKey string
func MakeContext() *context.Context {
ctx := context.Background()
config, err := GetConfig()
if err != nil {
panic(fmt.Errorf("failed to retrieve config: %v", err))
}
ctx = context.WithValue(ctx, hishtoryContextKey("config"), config)
db, err := OpenLocalSqliteDb()
if err != nil {
panic(fmt.Errorf("failed to open local DB: %v", err))
}
ctx = context.WithValue(ctx, hishtoryContextKey("db"), db)
homedir, err := os.UserHomeDir()
if err != nil {
panic(fmt.Errorf("failed to get homedir: %v", err))
}
ctx = context.WithValue(ctx, hishtoryContextKey("homedir"), homedir)
return &ctx
}
func GetConf(ctx *context.Context) ClientConfig {
v := (*ctx).Value(hishtoryContextKey("config"))
if v != nil {
return v.(ClientConfig)
}
panic(fmt.Errorf("failed to find config in ctx"))
}
func GetDb(ctx *context.Context) *gorm.DB {
v := (*ctx).Value(hishtoryContextKey("db"))
if v != nil {
return v.(*gorm.DB)
}
panic(fmt.Errorf("failed to find db in ctx"))
}
func GetHome(ctx *context.Context) string {
v := (*ctx).Value(hishtoryContextKey("homedir"))
if v != nil {
return v.(string)
}
panic(fmt.Errorf("failed to find homedir in ctx"))
}
type ClientConfig struct {
// The user secret that is used to derive encryption keys for syncing history entries
UserSecret string `json:"user_secret"`
// Whether hishtory recording is enabled
IsEnabled bool `json:"is_enabled"`
// A device ID used to track which history entry came from which device for remote syncing
DeviceId string `json:"device_id"`
// Used for skipping history entries prefixed with a space in bash
LastSavedHistoryLine string `json:"last_saved_history_line"`
// Used for uploading history entries that we failed to upload due to a missing network connection
HaveMissedUploads bool `json:"have_missed_uploads"`
MissedUploadTimestamp int64 `json:"missed_upload_timestamp"`
// Used for avoiding double imports of .bash_history
HaveCompletedInitialImport bool `json:"have_completed_initial_import"`
// Whether control-r bindings are enabled
ControlRSearchEnabled bool `json:"enable_control_r_search"`
// The set of columns that the user wants to be displayed
DisplayedColumns []string `json:"displayed_columns"`
// Custom columns
CustomColumns []CustomColumnDefinition `json:"custom_columns"`
// Whether this is an offline instance of hishtory with no syncing
IsOffline bool `json:"is_offline"`
// Whether duplicate commands should be displayed
FilterDuplicateCommands bool `json:"filter_duplicate_commands"`
// A format string for the timestamp
TimestampFormat string `json:"timestamp_format"`
}
type CustomColumnDefinition struct {
ColumnName string `json:"column_name"`
ColumnCommand string `json:"column_command"`
}
func GetConfigContents() ([]byte, error) {
homedir, err := os.UserHomeDir()
if err != nil {
return nil, fmt.Errorf("failed to retrieve homedir: %v", err)
}
dat, err := os.ReadFile(path.Join(homedir, data.GetHishtoryPath(), data.CONFIG_PATH))
if err != nil {
files, err := os.ReadDir(path.Join(homedir, data.GetHishtoryPath()))
if err != nil {
return nil, fmt.Errorf("failed to read config file (and failed to list too): %v", err)
}
filenames := ""
for _, file := range files {
filenames += file.Name()
filenames += ", "
}
return nil, fmt.Errorf("failed to read config file (files in HISHTORY_PATH: %s): %v", filenames, err)
}
return dat, nil
}
func GetConfig() (ClientConfig, error) {
data, err := GetConfigContents()
if err != nil {
return ClientConfig{}, err
}
var config ClientConfig
err = json.Unmarshal(data, &config)
if err != nil {
return ClientConfig{}, fmt.Errorf("failed to parse config file: %v", err)
}
if config.DisplayedColumns == nil || len(config.DisplayedColumns) == 0 {
config.DisplayedColumns = []string{"Hostname", "CWD", "Timestamp", "Runtime", "Exit Code", "Command"}
}
if config.TimestampFormat == "" {
config.TimestampFormat = "Jan 2 2006 15:04:05 MST"
}
return config, nil
}
func SetConfig(config ClientConfig) error {
serializedConfig, err := json.Marshal(config)
if err != nil {
return fmt.Errorf("failed to serialize config: %v", err)
}
homedir, err := os.UserHomeDir()
if err != nil {
return fmt.Errorf("failed to retrieve homedir: %v", err)
}
err = MakeHishtoryDir()
if err != nil {
return err
}
configPath := path.Join(homedir, data.GetHishtoryPath(), data.CONFIG_PATH)
stagedConfigPath := configPath + ".tmp-" + uuid.Must(uuid.NewRandom()).String()
err = os.WriteFile(stagedConfigPath, serializedConfig, 0o644)
if err != nil {
return fmt.Errorf("failed to write config: %v", err)
}
err = os.Rename(stagedConfigPath, configPath)
if err != nil {
return fmt.Errorf("failed to replace config file with the updated version: %v", err)
}
return nil
}
func InitConfig() error {
homedir, err := os.UserHomeDir()
if err != nil {
return err
}
_, err = os.Stat(path.Join(homedir, data.GetHishtoryPath(), data.CONFIG_PATH))
if errors.Is(err, os.ErrNotExist) {
return SetConfig(ClientConfig{})
}
return err
}