Mirror
/
resh
mirror of https://github.com/curusarn/resh
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

remove /recall and /inspect

Browse Source
pull/184/head
Simon Let 4 years ago committed by Simon Let
parent d7f03ec8fa
commit c8fa7be082
2 changed files with 0 additions and 251 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 8
      cmd/daemon/run-server.go
  2. 243
      pkg/sesshist/sesshist.go

8
cmd/daemon/run-server.go
Unescape View File

@ -43,11 +43,6 @@ func runServer(config cfg.Config, reshHistoryPath, bashHistoryPath, zshHistoryPa
maxHistSize, minHistSizeKB, maxHistSize, minHistSizeKB,
histfileSignals, shutdown) histfileSignals, shutdown)
// sesshist New
sesshistDispatch := sesshist.NewDispatch(sesshistSessionsToInit, sesshistSessionsToDrop,
sesshistRecords, histfileBox,
config.SesshistInitHistorySize)
// sesswatch // sesswatch
sesswatchRecords := make(chan records.Record) sesswatchRecords := make(chan records.Record)
recordSubscribers = append(recordSubscribers, sesswatchRecords) recordSubscribers = append(recordSubscribers, sesswatchRecords)
@ -60,9 +55,6 @@ func runServer(config cfg.Config, reshHistoryPath, bashHistoryPath, zshHistoryPa
mux.HandleFunc("/status", statusHandler) mux.HandleFunc("/status", statusHandler)
mux.Handle("/record", &recordHandler{subscribers: recordSubscribers}) mux.Handle("/record", &recordHandler{subscribers: recordSubscribers})
mux.Handle("/session_init", &sessionInitHandler{subscribers: sessionInitSubscribers}) mux.Handle("/session_init", &sessionInitHandler{subscribers: sessionInitSubscribers})
// TOOD: drop recall and inspect
mux.Handle("/recall", &recallHandler{sesshistDispatch: sesshistDispatch})
mux.Handle("/inspect", &inspectHandler{sesshistDispatch: sesshistDispatch})
mux.Handle("/dump", &dumpHandler{histfileBox: histfileBox}) mux.Handle("/dump", &dumpHandler{histfileBox: histfileBox})
server := &http.Server{ server := &http.Server{

243
pkg/sesshist/sesshist.go
Unescape View File

@ -1,243 +0,0 @@
package sesshist
import (
"errors"
"log"
"strconv"
"strings"
"sync"
"github.com/curusarn/resh/pkg/histfile"
"github.com/curusarn/resh/pkg/histlist"
"github.com/curusarn/resh/pkg/records"
)
// Dispatch Recall() calls to an apropriate session history (sesshist)
type Dispatch struct {
sessions map[string]*sesshist
mutex sync.RWMutex
history *histfile.Histfile
historyInitSize int
}
// NewDispatch creates a new sesshist.Dispatch and starts necessary gorutines
func NewDispatch(sessionsToInit chan records.Record, sessionsToDrop chan string,
recordsToAdd chan records.Record, history *histfile.Histfile, historyInitSize int) *Dispatch {
s := Dispatch{
sessions: map[string]*sesshist{},
history: history,
historyInitSize: historyInitSize,
}
go s.sessionInitializer(sessionsToInit)
go s.sessionDropper(sessionsToDrop)
go s.recordAdder(recordsToAdd)
return &s
}
func (s *Dispatch) sessionInitializer(sessionsToInit chan records.Record) {
for {
record := <-sessionsToInit
log.Println("sesshist: got session to init - " + record.SessionID)
s.initSession(record.SessionID, record.Shell)
}
}
func (s *Dispatch) sessionDropper(sessionsToDrop chan string) {
for {
sessionID := <-sessionsToDrop
log.Println("sesshist: got session to drop - " + sessionID)
s.dropSession(sessionID)
}
}
func (s *Dispatch) recordAdder(recordsToAdd chan records.Record) {
for {
record := <-recordsToAdd
if record.PartOne {
log.Println("sesshist: got record to add - " + record.CmdLine)
s.addRecentRecord(record.SessionID, record)
} else {
// this inits session on RESH update
s.checkSession(record.SessionID, record.Shell)
}
// TODO: we will need to handle part2 as well eventually
}
}
func (s *Dispatch) checkSession(sessionID, shell string) {
s.mutex.RLock()
_, found := s.sessions[sessionID]
s.mutex.RUnlock()
if found == false {
err := s.initSession(sessionID, shell)
if err != nil {
log.Println("sesshist: Error while checking session:", err)
}
}
}
// InitSession struct
func (s *Dispatch) initSession(sessionID, shell string) error {
log.Println("sesshist: initializing session - " + sessionID)
s.mutex.RLock()
_, found := s.sessions[sessionID]
s.mutex.RUnlock()
if found == true {
return errors.New("sesshist ERROR: Can't INIT already existing session " + sessionID)
}
log.Println("sesshist: loading history to populate session - " + sessionID)
historyCmdLines := s.history.GetRecentCmdLines(shell, s.historyInitSize)
s.mutex.Lock()
defer s.mutex.Unlock()
// init sesshist and populate it with history loaded from file
s.sessions[sessionID] = &sesshist{
recentCmdLines: historyCmdLines,
}
log.Println("sesshist: session init done - " + sessionID)
return nil
}
// DropSession struct
func (s *Dispatch) dropSession(sessionID string) error {
s.mutex.RLock()
_, found := s.sessions[sessionID]
s.mutex.RUnlock()
if found == false {
return errors.New("sesshist ERROR: Can't DROP not existing session " + sessionID)
}
s.mutex.Lock()
defer s.mutex.Unlock()
delete(s.sessions, sessionID)
return nil
}
// AddRecent record to session
func (s *Dispatch) addRecentRecord(sessionID string, record records.Record) error {
log.Println("sesshist: Adding a record, RLocking main lock ...")
s.mutex.RLock()
log.Println("sesshist: Getting a session ...")
session, found := s.sessions[sessionID]
log.Println("sesshist: RUnlocking main lock ...")
s.mutex.RUnlock()
if found == false {
log.Println("sesshist ERROR: addRecentRecord(): No session history for SessionID " + sessionID + " - creating session history.")
s.initSession(sessionID, record.Shell)
return s.addRecentRecord(sessionID, record)
}
log.Println("sesshist: RLocking session lock (w/ defer) ...")
session.mutex.Lock()
defer session.mutex.Unlock()
session.recentRecords = append(session.recentRecords, record)
session.recentCmdLines.AddCmdLine(record.CmdLine)
log.Println("sesshist: record:", record.CmdLine, "; added to session:", sessionID,
"; session len:", len(session.recentCmdLines.List), "; session len (records):", len(session.recentRecords))
return nil
}
// Recall command from recent session history
func (s *Dispatch) Recall(sessionID string, histno int, prefix string) (string, error) {
log.Println("sesshist - recall: RLocking main lock ...")
s.mutex.RLock()
log.Println("sesshist - recall: Getting session history struct ...")
session, found := s.sessions[sessionID]
s.mutex.RUnlock()
if found == false {
// TODO: propagate actual shell here so we can use it
go s.initSession(sessionID, "bash")
return "", errors.New("sesshist ERROR: No session history for SessionID " + sessionID + " - creating one ...")
}
log.Println("sesshist - recall: Locking session lock ...")
session.mutex.Lock()
defer session.mutex.Unlock()
if prefix == "" {
log.Println("sesshist - recall: Getting records by histno ...")
return session.getRecordByHistno(histno)
}
log.Println("sesshist - recall: Searching for records by prefix ...")
return session.searchRecordByPrefix(prefix, histno)
}
// Inspect commands in recent session history
func (s *Dispatch) Inspect(sessionID string, count int) ([]string, error) {
prefix := ""
log.Println("sesshist - inspect: RLocking main lock ...")
s.mutex.RLock()
log.Println("sesshist - inspect: Getting session history struct ...")
session, found := s.sessions[sessionID]
s.mutex.RUnlock()
if found == false {
// go s.initSession(sessionID)
return nil, errors.New("sesshist ERROR: No session history for SessionID " + sessionID + " - should we create one?")
}
log.Println("sesshist - inspect: Locking session lock ...")
session.mutex.Lock()
defer session.mutex.Unlock()
if prefix == "" {
log.Println("sesshist - inspect: Getting records by histno ...")
idx := len(session.recentCmdLines.List) - count
if idx < 0 {
idx = 0
}
return session.recentCmdLines.List[idx:], nil
}
log.Println("sesshist - inspect: Searching for records by prefix ... ERROR - Not implemented")
return nil, errors.New("sesshist ERROR: Inspect - Searching for records by prefix Not implemented yet")
}
type sesshist struct {
mutex sync.Mutex
recentRecords []records.Record
recentCmdLines histlist.Histlist
}
func (s *sesshist) getRecordByHistno(histno int) (string, error) {
// addRecords() appends records to the end of the slice
// -> this func handles the indexing
if histno == 0 {
return "", errors.New("sesshist ERROR: 'histno == 0' is not a record from history")
}
if histno < 0 {
return "", errors.New("sesshist ERROR: 'histno < 0' is a command from future (not supperted yet)")
}
index := len(s.recentCmdLines.List) - histno
if index < 0 {
return "", errors.New("sesshist ERROR: 'histno > number of commands in the session' (" + strconv.Itoa(len(s.recentCmdLines.List)) + ")")
}
return s.recentCmdLines.List[index], nil
}
func (s *sesshist) searchRecordByPrefix(prefix string, histno int) (string, error) {
if histno == 0 {
return "", errors.New("sesshist ERROR: 'histno == 0' is not a record from history")
}
if histno < 0 {
return "", errors.New("sesshist ERROR: 'histno < 0' is a command from future (not supperted yet)")
}
index := len(s.recentCmdLines.List) - histno
if index < 0 {
return "", errors.New("sesshist ERROR: 'histno > number of commands in the session' (" + strconv.Itoa(len(s.recentCmdLines.List)) + ")")
}
cmdLines := []string{}
for i := len(s.recentCmdLines.List) - 1; i >= 0; i-- {
if strings.HasPrefix(s.recentCmdLines.List[i], prefix) {
cmdLines = append(cmdLines, s.recentCmdLines.List[i])
if len(cmdLines) >= histno {
break
}
}
}
if len(cmdLines) < histno {
return "", errors.New("sesshist ERROR: 'histno > number of commands matching with given prefix' (" + strconv.Itoa(len(cmdLines)) + ")")
}
return cmdLines[histno-1], nil
}
Write Preview
Loading…
Cancel
Save