waveterm/pkg/sstore/dbops.go
2022-07-15 17:53:23 -07:00

490 lines
15 KiB
Go

package sstore
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/google/uuid"
"github.com/scripthaus-dev/mshell/pkg/packet"
)
func NumSessions(ctx context.Context) (int, error) {
db, err := GetDB(ctx)
if err != nil {
return 0, err
}
query := "SELECT count(*) FROM session"
var count int
err = db.GetContext(ctx, &count, query)
if err != nil {
return 0, err
}
return count, nil
}
func GetAllRemotes(ctx context.Context) ([]*RemoteType, error) {
var rtn []*RemoteType
err := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM remote`
marr := tx.SelectMaps(query)
for _, m := range marr {
rtn = append(rtn, RemoteFromMap(m))
}
return nil
})
if err != nil {
return nil, err
}
return rtn, nil
}
func GetRemoteByName(ctx context.Context, remoteName string) (*RemoteType, error) {
var remote *RemoteType
err := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM remote WHERE remotename = ?`
m := tx.GetMap(query, remoteName)
remote = RemoteFromMap(m)
return nil
})
if err != nil {
return nil, err
}
return remote, nil
}
func GetRemoteById(ctx context.Context, remoteId string) (*RemoteType, error) {
var remote *RemoteType
err := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM remote WHERE remoteid = ?`
m := tx.GetMap(query, remoteId)
remote = RemoteFromMap(m)
return nil
})
if err != nil {
return nil, err
}
return remote, nil
}
func InsertRemote(ctx context.Context, remote *RemoteType) error {
if remote == nil {
return fmt.Errorf("cannot insert nil remote")
}
db, err := GetDB(ctx)
if err != nil {
return err
}
query := `INSERT INTO remote ( remoteid, remotetype, remotename, autoconnect, initpk, sshopts, lastconnectts) VALUES
(:remoteid,:remotetype,:remotename,:autoconnect,:initpk,:sshopts,:lastconnectts)`
_, err = db.NamedExec(query, remote.ToMap())
if err != nil {
return err
}
return nil
}
func GetAllSessions(ctx context.Context) ([]*SessionType, error) {
var rtn []*SessionType
err := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM session`
tx.SelectWrap(&rtn, query)
var screens []*ScreenType
query = `SELECT * FROM screen ORDER BY screenidx`
tx.SelectWrap(&screens, query)
screenMap := make(map[string][]*ScreenType)
for _, screen := range screens {
screenArr := screenMap[screen.SessionId]
screenArr = append(screenArr, screen)
screenMap[screen.SessionId] = screenArr
}
for _, session := range rtn {
session.Screens = screenMap[session.SessionId]
}
var sws []*ScreenWindowType
query = `SELECT * FROM screen_window`
tx.SelectWrap(&sws, query)
screenIdMap := make(map[string]*ScreenType)
for _, screen := range screens {
screenIdMap[screen.SessionId+screen.ScreenId] = screen
}
for _, sw := range sws {
screen := screenIdMap[sw.SessionId+sw.ScreenId]
if screen == nil {
continue
}
screen.Windows = append(screen.Windows, sw)
}
return nil
})
return rtn, err
}
func GetWindowById(ctx context.Context, sessionId string, windowId string) (*WindowType, error) {
var rtnWindow *WindowType
err := WithTx(ctx, func(tx *TxWrap) error {
var window WindowType
query := `SELECT * FROM window WHERE sessionid = ? AND windowid = ?`
found := tx.GetWrap(&window, query, sessionId, windowId)
if !found {
return nil
}
rtnWindow = &window
query = `SELECT * FROM line WHERE sessionid = ? AND windowid = ?`
tx.SelectWrap(&window.Lines, query, sessionId, windowId)
query = `SELECT * FROM cmd WHERE cmdid IN (SELECT cmdid FROM line WHERE sessionid = ? AND windowid = ?)`
cmdMaps := tx.SelectMaps(query, sessionId, windowId)
for _, m := range cmdMaps {
window.Cmds = append(window.Cmds, CmdFromMap(m))
}
return nil
})
return rtnWindow, err
}
func GetSessionScreens(ctx context.Context, sessionId string) ([]*ScreenType, error) {
var rtn []*ScreenType
txErr := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM screen WHERE sessionid = ? ORDER BY screenidx`
tx.SelectWrap(&rtn, query, sessionId)
return nil
})
return rtn, txErr
}
func GetSessionById(ctx context.Context, id string) (*SessionType, error) {
var rtnSession *SessionType
err := WithTx(ctx, func(tx *TxWrap) error {
var session SessionType
query := `SELECT * FROM session WHERE sessionid = ?`
found := tx.GetWrap(&session, query, id)
if !found {
return nil
}
rtnSession = &session
query = `SELECT * FROM screen WHERE sessionid = ? ORDER BY screenidx`
tx.SelectWrap(&session.Screens, query, session.SessionId)
query = `SELECT * FROM remote_instance WHERE sessionid = ?`
tx.SelectWrap(&session.Remotes, query, session.SessionId)
session.Full = true
return nil
})
if err != nil {
return nil, err
}
return rtnSession, nil
}
func GetSessionByName(ctx context.Context, name string) (*SessionType, error) {
db, err := GetDB(ctx)
if err != nil {
return nil, err
}
var sessionId string
query := `SELECT sessionid FROM session WHERE name = ?`
err = db.GetContext(ctx, &sessionId, query, name)
if err != nil {
if err == sql.ErrNoRows {
return nil, nil
}
return nil, err
}
return GetSessionById(ctx, sessionId)
}
// also creates default window, returns sessionId
// if sessionName == "", it will be generated
func InsertSessionWithName(ctx context.Context, sessionName string) (string, error) {
newSessionId := uuid.New().String()
txErr := WithTx(ctx, func(tx *TxWrap) error {
names := tx.SelectStrings(`SELECT name FROM session`)
sessionName = fmtUniqueName(sessionName, "session-%d", len(names)+1, names)
maxSessionIdx := tx.GetInt(`SELECT COALESCE(max(sessionidx), 0) FROM session`)
query := `INSERT INTO session (sessionid, name, activescreenid, sessionidx, notifynum) VALUES (?, ?, '', ?, ?)`
tx.ExecWrap(query, newSessionId, sessionName, maxSessionIdx+1, 0)
_, err := InsertScreen(tx.Context(), newSessionId, "", true)
if err != nil {
return err
}
return nil
})
if txErr != nil {
return "", txErr
}
return newSessionId, nil
}
func containsStr(strs []string, testStr string) bool {
for _, s := range strs {
if s == testStr {
return true
}
}
return false
}
func fmtUniqueName(name string, defaultFmtStr string, startIdx int, strs []string) string {
var fmtStr string
if name != "" {
if !containsStr(strs, name) {
return name
}
fmtStr = name + "-%d"
startIdx = 2
} else {
fmtStr = defaultFmtStr
}
if strings.Index(fmtStr, "%d") == -1 {
panic("invalid fmtStr: " + fmtStr)
}
for {
testName := fmt.Sprintf(fmtStr, startIdx)
if containsStr(strs, testName) {
startIdx++
continue
}
return testName
}
}
func InsertScreen(ctx context.Context, sessionId string, screenName string, activate bool) (UpdatePacket, error) {
var newScreenId string
txErr := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT sessionid FROM session WHERE sessionid = ?`
if !tx.Exists(query, sessionId) {
return fmt.Errorf("cannot create screen, no session found")
}
newWindowId := txCreateWindow(tx, sessionId)
maxScreenIdx := tx.GetInt(`SELECT COALESCE(max(screenidx), 0) FROM screen WHERE sessionid = ?`, sessionId)
screenNames := tx.SelectStrings(`SELECT name FROM screen WHERE sessionid = ?`, sessionId)
screenName = fmtUniqueName(screenName, "s%d", maxScreenIdx+1, screenNames)
newScreenId = uuid.New().String()
query = `INSERT INTO screen (sessionid, screenid, name, activewindowid, screenidx, screenopts) VALUES (?, ?, ?, ?, ?, ?)`
tx.ExecWrap(query, sessionId, newScreenId, screenName, newWindowId, maxScreenIdx+1, ScreenOptsType{})
layout := LayoutType{Type: LayoutFull}
query = `INSERT INTO screen_window (sessionid, screenid, windowid, name, layout) VALUES (?, ?, ?, ?, ?)`
tx.ExecWrap(query, sessionId, newScreenId, newWindowId, DefaultScreenWindowName, layout)
if activate {
query = `UPDATE session SET activescreenid = ? WHERE sessionid = ?`
tx.ExecWrap(query, newScreenId, sessionId)
}
return nil
})
newScreen, err := GetScreenById(ctx, sessionId, newScreenId)
if err != nil {
return nil, err
}
update, session := MakeSingleSessionUpdate(sessionId)
if activate {
session.ActiveScreenId = newScreenId
}
session.Screens = append(session.Screens, newScreen)
return update, txErr
}
func GetScreenById(ctx context.Context, sessionId string, screenId string) (*ScreenType, error) {
var rtnScreen *ScreenType
txErr := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM screen WHERE sessionid = ? AND screenid = ?`
var screen ScreenType
found := tx.GetWrap(&screen, query, sessionId, screenId)
if !found {
return nil
}
rtnScreen = &screen
query = `SELECT * FROM screen_window WHERE sessionid = ? AND screenid = ?`
tx.SelectWrap(&screen.Windows, query, sessionId, screenId)
screen.Full = true
return nil
})
if txErr != nil {
return nil, txErr
}
return rtnScreen, nil
}
func txCreateWindow(tx *TxWrap, sessionId string) string {
windowId := uuid.New().String()
query := `INSERT INTO window (sessionid, windowid, curremote, winopts) VALUES (?, ?, ?, ?)`
tx.ExecWrap(query, sessionId, windowId, LocalRemoteName, WindowOptsType{})
return windowId
}
func InsertLine(ctx context.Context, line *LineType, cmd *CmdType) error {
if line == nil {
return fmt.Errorf("line cannot be nil")
}
if line.LineId != 0 {
return fmt.Errorf("new line cannot have LineId set")
}
return WithTx(ctx, func(tx *TxWrap) error {
var windowId string
query := `SELECT windowid FROM window WHERE sessionid = ? AND windowid = ?`
hasWindow := tx.GetWrap(&windowId, query, line.SessionId, line.WindowId)
if !hasWindow {
return fmt.Errorf("window not found, cannot insert line[%s/%s]", line.SessionId, line.WindowId)
}
var maxLineId int64
query = `SELECT COALESCE(max(lineid), 0) FROM line WHERE sessionid = ? AND windowid = ?`
tx.GetWrap(&maxLineId, query, line.SessionId, line.WindowId)
line.LineId = maxLineId + 1
query = `INSERT INTO line ( sessionid, windowid, lineid, ts, userid, linetype, text, cmdid)
VALUES (:sessionid,:windowid,:lineid,:ts,:userid,:linetype,:text,:cmdid)`
tx.NamedExecWrap(query, line)
if cmd != nil {
cmdMap := cmd.ToMap()
query = `
INSERT INTO cmd ( sessionid, cmdid, remoteid, cmdstr, remotestate, termopts, status, startpk, donepk, runout, usedrows)
VALUES (:sessionid,:cmdid,:remoteid,:cmdstr,:remotestate,:termopts,:status,:startpk,:donepk,:runout,:usedrows)
`
tx.NamedExecWrap(query, cmdMap)
}
return nil
})
}
func GetCmdById(ctx context.Context, sessionId string, cmdId string) (*CmdType, error) {
var cmd *CmdType
err := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT * FROM cmd WHERE sessionid = ? AND cmdid = ?`
m := tx.GetMap(query, sessionId, cmdId)
cmd = CmdFromMap(m)
return nil
})
if err != nil {
return nil, err
}
return cmd, nil
}
func UpdateCmdDonePk(ctx context.Context, donePk *packet.CmdDonePacketType) error {
if donePk == nil || donePk.CK.IsEmpty() {
return fmt.Errorf("invalid cmddone packet (no ck)")
}
return WithTx(ctx, func(tx *TxWrap) error {
query := `UPDATE cmd SET status = ?, donepk = ? WHERE sessionid = ? AND cmdid = ?`
tx.ExecWrap(query, CmdStatusDone, quickJson(donePk), donePk.CK.GetSessionId(), donePk.CK.GetCmdId())
return nil
})
}
func AppendCmdErrorPk(ctx context.Context, errPk *packet.CmdErrorPacketType) error {
if errPk == nil || errPk.CK.IsEmpty() {
return fmt.Errorf("invalid cmderror packet (no ck)")
}
return WithTx(ctx, func(tx *TxWrap) error {
query := `UPDATE cmd SET runout = json_insert(runout, '$[#]', ?) WHERE sessionid = ? AND cmdid = ?`
tx.ExecWrap(query, quickJson(errPk), errPk.CK.GetSessionId(), errPk.CK.GetCmdId())
return nil
})
}
func HangupAllRunningCmds(ctx context.Context) error {
return WithTx(ctx, func(tx *TxWrap) error {
query := `UPDATE cmd SET status = ? WHERE status = ?`
tx.ExecWrap(query, CmdStatusHangup, CmdStatusRunning)
return nil
})
}
func HangupRunningCmdsByRemoteId(ctx context.Context, remoteId string) error {
return WithTx(ctx, func(tx *TxWrap) error {
query := `UPDATE cmd SET status = ? WHERE status = ? AND remoteid = ?`
tx.ExecWrap(query, CmdStatusHangup, CmdStatusRunning, remoteId)
return nil
})
}
func getNextId(ids []string, delId string) string {
fmt.Printf("getnextid %v | %v\n", ids, delId)
if len(ids) == 0 {
return ""
}
if len(ids) == 1 {
if ids[0] == delId {
return ""
}
return ids[0]
}
for idx := 0; idx < len(ids); idx++ {
if ids[idx] == delId {
var rtnIdx int
if idx == len(ids)-1 {
rtnIdx = idx - 1
} else {
rtnIdx = idx + 1
}
return ids[rtnIdx]
}
}
return ids[0]
}
func SwitchScreenById(ctx context.Context, sessionId string, screenId string) (UpdatePacket, error) {
txErr := WithTx(ctx, func(tx *TxWrap) error {
query := `SELECT screenid FROM screen WHERE sessionid = ? AND screenid = ?`
if !tx.Exists(query, sessionId, screenId) {
return fmt.Errorf("cannot switch to screen, screen=%s does not exist in session=%s", screenId, sessionId)
}
query = `UPDATE session SET activescreenid = ? WHERE sessionid = ?`
tx.ExecWrap(query, screenId, sessionId)
return nil
})
update, session := MakeSingleSessionUpdate(sessionId)
session.ActiveScreenId = screenId
return update, txErr
}
func CleanWindows() {
}
func DeleteScreen(ctx context.Context, sessionId string, screenId string) (UpdatePacket, error) {
var newActiveScreenId string
txErr := WithTx(ctx, func(tx *TxWrap) error {
isActive := tx.Exists(`SELECT sessionid FROM session WHERE sessionid = ? AND activescreenid = ?`, sessionId, screenId)
fmt.Printf("delete-screen %s %s | %v\n", sessionId, screenId, isActive)
if isActive {
screenIds := tx.SelectStrings(`SELECT screenid FROM screen WHERE sessionid = ? ORDER BY screenidx`, sessionId)
nextId := getNextId(screenIds, screenId)
tx.ExecWrap(`UPDATE session SET activescreenid = ? WHERE sessionid = ?`, nextId, sessionId)
newActiveScreenId = nextId
}
query := `DELETE FROM screen_window WHERE sessionid = ? AND screenid = ?`
tx.ExecWrap(query, sessionId, screenId)
query = `DELETE FROM screen WHERE sessionid = ? AND screenid = ?`
tx.ExecWrap(query, sessionId, screenId)
return nil
})
if txErr != nil {
return nil, txErr
}
go CleanWindows()
update, session := MakeSingleSessionUpdate(sessionId)
session.ActiveScreenId = newActiveScreenId
session.Screens = append(session.Screens, &ScreenType{SessionId: sessionId, ScreenId: screenId, Remove: true})
return update, nil
}
func GetRemoteState(ctx context.Context, rname string, sessionId string, windowId string) (string, *RemoteState, error) {
var remoteId string
var remoteState *RemoteState
txErr := WithTx(ctx, func(tx *TxWrap) error {
var ri RemoteInstance
query := `SELECT * FROM remote_instance WHERE sessionid = ? AND windowid = ? AND name = ?`
found := tx.GetWrap(&ri, query, sessionId, windowId, rname)
if found {
remoteId = ri.RemoteId
remoteState = &ri.State
return nil
}
query = `SELECT remoteid FROM remote WHERE remotename = ?`
remoteId = tx.GetString(query, rname)
if remoteId == "" {
return fmt.Errorf("remote not found", rname)
}
return nil
})
return remoteId, remoteState, txErr
}