forked from x/ContextOS
491 lines
11 KiB
Go
491 lines
11 KiB
Go
package cli // {{{
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// }}}
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import ( // {{{
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"context"
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"bufio"
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"fmt"
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"io"
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"os"
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"os/exec"
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"strings"
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"time"
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"unicode"
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)
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// }}}
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type CLI struct {
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in io.ReadCloser
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ins []io.ReadCloser
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bio *bufio.Reader
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bios []*bufio.Reader
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bufs [][]byte
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out io.WriteCloser
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alias map[string]string
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back string
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next string
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exit bool
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lex *ctx.Message
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target *ctx.Context
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*ctx.Message
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*ctx.Context
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}
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func (cli *CLI) push(f io.ReadCloser) { // {{{
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if cli.ins == nil || cli.bios == nil {
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cli.ins = make([]io.ReadCloser, 0, 3)
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cli.bios = make([]*bufio.Reader, 0, 3)
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}
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cli.in = f
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cli.ins = append(cli.ins, cli.in)
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cli.bio = bufio.NewReader(f)
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cli.bios = append(cli.bios, cli.bio)
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}
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// }}}
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func (cli *CLI) echo(str string, arg ...interface{}) { // {{{
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if len(cli.ins) == 1 || cli.Conf("slient") != "yes" {
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fmt.Fprintf(cli.out, str, arg...)
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}
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}
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// }}}
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func (cli *CLI) parse(m *ctx.Message) bool { // {{{
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line := ""
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if cli.next == "" {
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cli.echo(m.Conf("PS1"))
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ls, e := cli.bio.ReadString('\n')
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if e == io.EOF {
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l := len(cli.ins)
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if l > 1 {
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cli.ins = cli.ins[:l-1]
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cli.bios = cli.bios[:l-1]
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cli.in = cli.ins[l-2]
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cli.bio = cli.bios[l-2]
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return true
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}
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return false
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}
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m.Assert(e)
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line = ls
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if len(cli.ins) > 1 {
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cli.echo(line)
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cli.echo("\n")
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}
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if len(line) == 1 {
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if len(cli.ins) > 1 {
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return true
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}
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line, cli.back = cli.back, ""
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}
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} else {
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line, cli.next = cli.next, ""
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if m.Conf("slient") != "yes" {
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cli.echo(m.Conf("PS1"))
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cli.echo(line)
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cli.echo("\n")
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}
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}
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line = strings.TrimSpace(line)
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if len(line) == 0 || line[0] == '#' {
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return true
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}
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ls := []string{}
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if cli.lex == nil {
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ls = strings.Split(line, " ")
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} else {
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lex := m.Spawn(cli.lex.Target)
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m.Assert(lex.Cmd("split", line, "void"))
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ls = lex.Meta["result"]
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}
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if len(ls) == 0 {
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return true
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}
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msg := m.Spawn(cli.target)
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for i := 0; i < len(ls); i++ {
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ls[i] = strings.TrimSpace(ls[i])
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if ls[i] == "" {
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continue
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}
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if ls[i][0] == '#' {
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break
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}
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if r := rune(ls[i][0]); r == '$' || r == '_' || (!unicode.IsNumber(r) && !unicode.IsLetter(r)) {
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if c, ok := cli.alias[string(r)]; ok {
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if msg.Add("detail", c); len(ls[i]) > 1 {
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ls[i] = ls[i][1:]
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} else {
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continue
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}
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}
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}
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if cli.lex != nil && len(ls[i]) > 1 {
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switch ls[i][0] {
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case '"', '\'':
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ls[i] = ls[i][1 : len(ls[i])-1]
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}
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}
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msg.Add("detail", ls[i])
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}
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msg.Wait = make(chan bool)
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msg.Post(cli.Context)
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cli.echo(strings.Join(msg.Meta["result"], ""))
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cli.target = msg.Target
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cli.back = line
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return true
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}
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// }}}
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func (cli *CLI) Spawn(m *ctx.Message, c *ctx.Context, arg ...string) ctx.Server { // {{{
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c.Caches = map[string]*ctx.Cache{}
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c.Configs = map[string]*ctx.Config{}
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s := new(CLI)
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s.Context = c
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return s
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}
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// }}}
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func (cli *CLI) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
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cli.Configs["slient"] = &ctx.Config{Name: "屏蔽脚本输出(yes/no)", Value: "yes", Help: "屏蔽脚本输出的信息，yes:屏蔽，no:不屏蔽"}
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cli.Configs["PS1"] = &ctx.Config{Name: "命令行提示符(target/detail)", Value: "target", Help: "命令行提示符，target:显示当前模块，detail:显示详细信息", Hand: func(m *ctx.Message, x *ctx.Config, arg ...string) string {
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if len(arg) > 0 { // {{{
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return arg[0]
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}
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ps := make([]string, 0, 3)
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if cli, ok := m.Target.Server.(*CLI); ok && cli.target != nil {
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ps = append(ps, "[")
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ps = append(ps, time.Now().Format("15:04:05"))
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ps = append(ps, "]")
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switch x.Value {
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case "detail":
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ps = append(ps, "(")
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ps = append(ps, m.Cap("ncontext"))
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ps = append(ps, ",")
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ps = append(ps, m.Cap("nmessage"))
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ps = append(ps, ",")
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ps = append(ps, m.Cap("nserver"))
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ps = append(ps, ")")
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case "target":
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}
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ps = append(ps, "\033[32m")
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ps = append(ps, cli.target.Name)
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ps = append(ps, "\033[0m> ")
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} else {
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ps = append(ps, "[")
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ps = append(ps, time.Now().Format("15:04:05"))
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ps = append(ps, "]")
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ps = append(ps, "\033[32m")
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ps = append(ps, x.Value)
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ps = append(ps, "\033[0m> ")
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}
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return strings.Join(ps, "")
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// }}}
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}}
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cli.Configs["lex"] = &ctx.Config{Name: "词法解析器", Value: "", Help: "命令行词法解析器", Hand: func(m *ctx.Message, x *ctx.Config, arg ...string) string {
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if len(arg) > 0 { // {{{
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cli, ok := m.Target.Server.(*CLI)
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m.Assert(ok, "模块类型错误")
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lex := m.Find(arg[0], true)
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m.Assert(lex != nil, "词法解析模块不存在")
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if lex.Cap("status") != "start" {
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lex.Target.Start(lex)
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m.Spawn(lex.Target).Cmd("train", "'[^']*'")
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m.Spawn(lex.Target).Cmd("train", "\"[^\"]*\"")
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m.Spawn(lex.Target).Cmd("train", "[^ \t\n]+")
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m.Spawn(lex.Target).Cmd("train", "[ \n\t]+", "void", "void")
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m.Spawn(lex.Target).Cmd("train", "#[^\n]*\n", "void", "void")
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}
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cli.lex = lex
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}
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return x.Value
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// }}}
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}}
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if len(arg) > 0 {
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cli.Configs["init.sh"] = &ctx.Config{Name: "启动脚本", Value: arg[0], Help: "模块启动时自动运行的脚本"}
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}
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cli.Context.Master = cli.Context
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if cli.Context != Index {
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cli.Owner = nil
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}
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if cli.Context == Index {
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Pulse = m
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}
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cli.target = cli.Context
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cli.alias = map[string]string{
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"~": "context",
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"!": "command",
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"@": "config",
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"$": "cache",
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"&": "server",
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"*": "message",
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}
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return cli
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}
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// }}}
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func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
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cli.Message = m
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if stream, ok := m.Data["io"]; ok {
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io := stream.(io.ReadWriteCloser)
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cli.out = io
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cli.push(io)
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if m.Has("master") {
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m.Log("info", nil, "master terminal")
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if cli.bufs == nil {
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cli.bufs = make([][]byte, 0, 10)
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}
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for {
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b := make([]byte, 128)
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n, e := cli.bio.Read(b)
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m.Log("info", nil, "read %d", n)
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m.Assert(e)
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cli.bufs = append(cli.bufs, b)
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}
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return true
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} else {
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if cli.Owner == nil {
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if msg := m.Find("aaa", true); msg != nil {
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username := ""
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cli.echo("username>")
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fmt.Fscanln(cli.in, &username)
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password := ""
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cli.echo("password>")
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fmt.Fscanln(cli.in, &password)
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msg.Name = "aaa"
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msg.Wait = make(chan bool)
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if msg.Cmd("login", username, password) == "" {
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cli.echo("登录失败")
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m.Cmd("exit")
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cli.out.Close()
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cli.in.Close()
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return false
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}
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if cli.Sessions == nil {
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cli.Sessions = make(map[string]*ctx.Message)
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}
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cli.Sessions["aaa"] = msg
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}
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} else {
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m.Cap("stream", "stdout")
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}
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m.Log("info", nil, "slaver terminal")
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m.Log("info", nil, "open %s", m.Conf("init.sh"))
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if f, e := os.Open(m.Conf("init.sh")); e == nil {
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cli.push(f)
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}
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go m.AssertOne(m, true, func(m *ctx.Message) {
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for cli.parse(m) {
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}
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})
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}
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}
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m.Capi("nterm", 1)
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defer m.Capi("nterm", -1)
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m.Deal(nil, func(msg *ctx.Message, arg ...string) bool {
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if msg.Get("result") == "error: " {
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msg.Log("system", nil, "%v", msg.Meta["detail"])
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msg.Set("result")
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msg.Set("append")
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c := exec.Command(msg.Meta["detail"][0], msg.Meta["detail"][1:]...)
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if len(cli.ins) == 1 && cli.Context == Index {
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c.Stdin, c.Stdout, c.Stderr = cli.in, cli.out, cli.out
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msg.Assert(c.Start())
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msg.Assert(c.Wait())
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} else {
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if out, e := c.CombinedOutput(); e == nil {
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msg.Echo(string(out))
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} else {
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msg.Echo("error: ")
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msg.Echo("%s\n", e)
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}
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}
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}
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cli.target = msg.Target
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return cli.exit == false
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})
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return true
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}
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// }}}
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func (cli *CLI) Close(m *ctx.Message, arg ...string) bool { // {{{
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switch cli.Context {
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case m.Target:
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if cli.Context == Index {
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return false
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}
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if len(cli.Context.Requests) == 0 {
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m.Log("info", nil, "%s close %v", Pulse.Cap("nterm"), arg)
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}
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case m.Source:
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if m.Name == "aaa" {
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msg := m.Spawn(cli.Context)
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msg.Master = cli.Context
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if !cli.Context.Close(msg, arg...) {
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return false
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}
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}
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}
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return true
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}
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// }}}
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var Pulse *ctx.Message
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var Index = &ctx.Context{Name: "cli", Help: "管理中心",
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Caches: map[string]*ctx.Cache{
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"nterm": &ctx.Cache{Name: "终端数量", Value: "0", Help: "已经运行的终端数量"},
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},
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Configs: map[string]*ctx.Config{},
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Commands: map[string]*ctx.Command{
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"source": &ctx.Command{Name: "source file", Help: "运行脚本", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) {
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cli := c.Server.(*CLI) // {{{
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switch len(arg) {
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case 1:
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f, e := os.Open(arg[0])
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m.Assert(e)
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cli.push(f)
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}
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// }}}
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}},
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"return": &ctx.Command{Name: "return", Help: "运行脚本", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) {
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cli := c.Server.(*CLI) // {{{
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cli.bio.Discard(cli.bio.Buffered())
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// }}}
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}},
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"alias": &ctx.Command{Name: "alias [short [long]]", Help: "查看日志", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) {
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cli := c.Server.(*CLI) // {{{
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switch len(arg) {
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case 0:
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for k, v := range cli.alias {
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m.Echo("%s: %s\n", k, v)
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}
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case 2:
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switch arg[0] {
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case "delete":
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delete(cli.alias, arg[1])
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default:
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cli.alias[arg[0]] = arg[1]
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m.Echo("%s: %s\n", arg[0], cli.alias[arg[0]])
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}
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default:
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cli.alias[arg[0]] = strings.Join(arg[1:], " ")
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m.Echo("%s: %s\n", arg[0], cli.alias[arg[0]])
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}
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// }}}
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}},
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"remote": &ctx.Command{Name: "remote [send args...]|[[master|slaver] listen|dial address protocol]", Help: "建立远程连接",
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Formats: map[string]int{"send": -1, "master": 0, "slaver": 0, "listen": 1, "dial": 1},
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Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) {
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if m.Has("send") { // {{{
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cli := m.Target.Server.(*CLI)
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cli.out.Write([]byte(strings.Join(m.Meta["args"], " ") + "\n"))
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m.Echo("~~~remote~~~\n")
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time.Sleep(100 * time.Millisecond)
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for _, b := range cli.bufs {
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m.Echo("%s", string(b))
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}
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cli.bufs = cli.bufs[0:0]
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m.Echo("\n~~~remote~~~\n")
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return
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}
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action := "dial"
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if m.Has("listen") {
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action = "listen"
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}
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msg := m.Find(m.Get("args"), true)
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if m.Has("master") {
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msg.Template = msg.Spawn(msg.Source).Add("option", "master")
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}
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msg.Cmd(action, m.Get(action))
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}},
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// }}}
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"open": &ctx.Command{Name: "open [master|slaver] [script [log]]", Help: "建立远程连接",
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Options: map[string]string{"master": "主控终端", "slaver": "被控终端", "args": "启动参数", "io": "读写流"},
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Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) {
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m.Start(fmt.Sprintf("PTS%d", m.Capi("nterm")), "管理终端", "void.sh") // {{{
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// }}}
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}},
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"master": &ctx.Command{Name: "open [master|slaver] [script [log]]", Help: "建立远程连接",
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Options: map[string]string{"master": "主控终端", "slaver": "被控终端", "args": "启动参数", "io": "读写流"},
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Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) {
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cli, ok := c.Server.(*CLI) // {{{
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m.Assert(ok, "模块类型错误")
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m.Assert(m.Target != c, "模块是主控模块")
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msg := m.Spawn(c)
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msg.Start(fmt.Sprintf("PTS%d", cli.Capi("nterm")), arg[0], arg[1:]...)
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m.Target.Master = msg.Target
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// }}}
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}},
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},
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Index: map[string]*ctx.Context{
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"void": &ctx.Context{Name: "void",
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Commands: map[string]*ctx.Command{
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"open": &ctx.Command{},
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},
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},
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},
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}
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func init() {
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cli := &CLI{}
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cli.Context = Index
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ctx.Index.Register(Index, cli)
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}
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