mirror of
https://gitcode.com/JianFeeeee/HomeAgent.git
synced 2026-09-21 17:38:10 +00:00
1f1233b823
- P0-1: ProviderError type + ReportStatus for precise 401/403 detection - P0-2: Remove -config flag from deploy/homeagent.service - P2-1: 5s debounce on context.go Save() - P2-2→C1: Delete output_set_channel entirely - P2-3: Extract mediaDataURL/mediaChat helpers - P2-4: Dedup defaultSources var - P3: Delete dead packages (embed/tokenizer/container/snapshot) - P3: Delete dead functions (messagesToMap, RunStageAll) - CL: Update .gitignore, docs, Makefile, gojieba removal - Config: Delete config/config.yaml, update docs - Arch: Remove EmitOutputTo from emitResponse - CL-1: go.work 1.19→1.21 - Docs: Add Mermaid architecture diagrams to README - Docs: Add kernel-rebuild requires plugin-rebuild note to PLUGIN_DEV.md
819 lines
19 KiB
Go
819 lines
19 KiB
Go
package agentcli
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import (
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"bytes"
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"fmt"
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"log"
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"os"
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"os/exec"
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"strings"
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"sync"
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"syscall"
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"time"
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"unsafe"
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"gitcode.com/JianFeeeee/HomeAgent/internal/plugin"
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sdk "gitcode.com/JianFeeeee/HomeAgent/internal/sdk"
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)
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// PTY ioctl constants for Linux
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const (
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TIOCGPTN = 0x80045430
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TIOCSPTLCK = 0x40045431
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TIOCSWINSZ = 0x5414
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)
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const (
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DefaultTimeout = 5 * time.Minute
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ReadBufSize = 4096
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MaxOutputBuffer = 128 * 1024
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NotifyOutputDelay = 500 * time.Millisecond
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)
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type winsize struct {
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Row uint16
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Col uint16
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XPixel uint16
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YPixel uint16
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}
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func ioctl(fd, cmd uintptr, ptr unsafe.Pointer) error {
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_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, fd, cmd, uintptr(ptr))
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if errno != 0 {
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return errno
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}
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return nil
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}
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func openPty() (master *os.File, slave *os.File, err error) {
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mfd, err := syscall.Open("/dev/ptmx", syscall.O_RDWR|syscall.O_NOCTTY, 0)
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if err != nil {
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return nil, nil, fmt.Errorf("open /dev/ptmx: %w", err)
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}
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master = os.NewFile(uintptr(mfd), "/dev/ptmx")
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var unlock int32
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if err := ioctl(uintptr(mfd), TIOCSPTLCK, unsafe.Pointer(&unlock)); err != nil {
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master.Close()
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return nil, nil, fmt.Errorf("TIOCSPTLCK: %w", err)
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}
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var ptyno int32
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if err := ioctl(uintptr(mfd), TIOCGPTN, unsafe.Pointer(&ptyno)); err != nil {
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master.Close()
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return nil, nil, fmt.Errorf("TIOCGPTN: %w", err)
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}
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slavePath := fmt.Sprintf("/dev/pts/%d", ptyno)
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sfd, err := syscall.Open(slavePath, syscall.O_RDWR|syscall.O_NOCTTY, 0)
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if err != nil {
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master.Close()
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return nil, nil, fmt.Errorf("open slave %s: %w", slavePath, err)
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}
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slave = os.NewFile(uintptr(sfd), slavePath)
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return master, slave, nil
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}
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type TerminalSession struct {
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id string
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cmd *exec.Cmd
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master *os.File
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slave *os.File
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mu sync.Mutex
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buf bytes.Buffer
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createdAt time.Time
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timeout time.Duration
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closed bool
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stopCh chan struct{}
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done chan struct{}
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}
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func (t *TerminalSession) Write(input string) (int, error) {
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return t.master.WriteString(input)
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}
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func (t *TerminalSession) Read(buf []byte) (int, error) {
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return t.master.Read(buf)
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}
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func (t *TerminalSession) ReadOutput() string {
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t.mu.Lock()
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defer t.mu.Unlock()
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return t.buf.String()
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}
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func (t *TerminalSession) ReadAndClearOutput() string {
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t.mu.Lock()
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defer t.mu.Unlock()
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s := t.buf.String()
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t.buf.Reset()
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return s
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}
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func (t *TerminalSession) appendOutput(data []byte) {
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t.mu.Lock()
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defer t.mu.Unlock()
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if t.buf.Len()+len(data) > MaxOutputBuffer {
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excess := t.buf.Len() + len(data) - MaxOutputBuffer
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if t.buf.Len() > excess {
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t.buf.Next(excess)
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} else {
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t.buf.Reset()
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}
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}
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t.buf.Write(data)
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}
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func (t *TerminalSession) Resize(rows, cols uint16) error {
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ws := winsize{Row: rows, Col: cols}
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if err := ioctl(uintptr(t.master.Fd()), TIOCSWINSZ, unsafe.Pointer(&ws)); err != nil {
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return fmt.Errorf("TIOCSWINSZ: %w", err)
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}
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return nil
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}
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func (t *TerminalSession) Close() {
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t.mu.Lock()
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if t.closed {
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t.mu.Unlock()
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return
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}
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t.closed = true
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t.mu.Unlock()
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close(t.stopCh)
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t.master.Close()
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<-t.done
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t.slave.Close()
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t.cmd.Process.Kill()
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}
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func (t *TerminalSession) IsExpired() bool {
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return time.Since(t.createdAt) >= t.timeout
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}
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type Plugin struct {
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name string
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mu sync.Mutex
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wg sync.WaitGroup
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stopCh chan struct{}
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sessions map[string]*TerminalSession
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nextID int
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}
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func init() {
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plugin.RegisterFactory("agentcli", func(name string, config map[string]interface{}) (sdk.Plugin, error) {
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return New(name), nil
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})
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}
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func New(name string) *Plugin {
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return &Plugin{
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name: name,
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stopCh: make(chan struct{}),
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sessions: make(map[string]*TerminalSession),
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}
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}
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func (p *Plugin) Name() string { return p.name }
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func (p *Plugin) Start(s *sdk.PluginSDK) error {
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s.RegisterTool("terminal_create", sdk.ToolDef{
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Name: "terminal_create",
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Description: "创建一个新的交互式终端会话。返回终端 ID，后续通过此 ID 进行读写操作。适用于运行交互式程序如 vim、ssh、top、nano 等。终端默认 5 分钟后自动关闭，可通过 timeout 参数调整。",
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"command": map[string]interface{}{
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"type": "string",
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"description": "要执行的命令（默认 bash）。如需运行特定程序直接传入即可，例如：vim /tmp/test.txt",
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},
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"timeout": map[string]interface{}{
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"type": "string",
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"description": "终端自动关闭时间，例如 5m, 10m, 30m, 1h（默认 5m）",
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},
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"rows": map[string]interface{}{
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"type": "integer",
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"description": "终端行数（默认 24）",
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},
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"cols": map[string]interface{}{
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"type": "integer",
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"description": "终端列数（默认 80）",
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},
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},
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},
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}, func(args map[string]interface{}) (interface{}, error) {
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return p.handleCreate(s, args)
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})
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s.RegisterTool("terminal_write", sdk.ToolDef{
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Name: "terminal_write",
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Description: "向指定终端发送输入。支持普通文本和特殊键（通过 key 参数传入）。特殊键包括：enter, tab, escape, ctrl_a~ctrl_z, alt_a~alt_z, f1~f12, up, down, left, right, home, end, backspace, delete, page_up, page_down。普通文本传入 input 参数即可。",
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"id": map[string]interface{}{
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"type": "string",
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"description": "终端 ID，来自 terminal_create 的返回值",
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},
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"input": map[string]interface{}{
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"type": "string",
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"description": "要发送的文本内容（普通文字直接输入）",
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},
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"key": map[string]interface{}{
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"type": "string",
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"description": "特殊按键：enter, tab, escape, ctrl_a~ctrl_z, alt_a~alt_z, f1~f12, up, down, left, right, home, end, backspace, delete, page_up, page_down",
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},
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},
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"required": []string{"id"},
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},
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}, func(args map[string]interface{}) (interface{}, error) {
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return p.handleWrite(s, args)
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})
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s.RegisterTool("terminal_read", sdk.ToolDef{
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Name: "terminal_read",
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Description: "读取指定终端的当前屏幕内容。返回自上次读取以来的新输出。如需持续监控请多次调用。",
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"id": map[string]interface{}{
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"type": "string",
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"description": "终端 ID",
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},
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"clear": map[string]interface{}{
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"type": "boolean",
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"description": "读取后是否清除缓冲区（默认 true）",
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},
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},
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"required": []string{"id"},
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},
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}, func(args map[string]interface{}) (interface{}, error) {
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return p.handleRead(args)
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})
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s.RegisterTool("terminal_resize", sdk.ToolDef{
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Name: "terminal_resize",
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Description: "调整指定终端的尺寸（行数和列数）。",
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"id": map[string]interface{}{
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"type": "string",
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"description": "终端 ID",
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},
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"rows": map[string]interface{}{
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"type": "integer",
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"description": "行数",
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},
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"cols": map[string]interface{}{
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"type": "integer",
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"description": "列数",
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},
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},
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"required": []string{"id"},
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},
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}, func(args map[string]interface{}) (interface{}, error) {
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return p.handleResize(args)
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})
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s.RegisterTool("terminal_close", sdk.ToolDef{
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Name: "terminal_close",
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Description: "关闭指定终端会话。释放资源。",
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{
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"id": map[string]interface{}{
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"type": "string",
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"description": "终端 ID",
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},
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},
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"required": []string{"id"},
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},
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}, func(args map[string]interface{}) (interface{}, error) {
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return p.handleClose(args)
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})
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s.RegisterTool("terminal_list", sdk.ToolDef{
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Name: "terminal_list",
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Description: "列出所有活跃的终端会话及其状态。",
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Parameters: map[string]interface{}{
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"type": "object",
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"properties": map[string]interface{}{},
|
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},
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}, func(args map[string]interface{}) (interface{}, error) {
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return p.handleList()
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})
|
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|
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p.wg.Add(1)
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go p.cleanupLoop(s)
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|
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return nil
|
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}
|
||
|
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func (p *Plugin) Stop() error {
|
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close(p.stopCh)
|
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p.wg.Wait()
|
||
|
||
p.mu.Lock()
|
||
for _, t := range p.sessions {
|
||
t.Close()
|
||
}
|
||
p.sessions = nil
|
||
p.mu.Unlock()
|
||
|
||
return nil
|
||
}
|
||
|
||
func (p *Plugin) nextIDLocked() string {
|
||
p.nextID++
|
||
return fmt.Sprintf("term_%d", p.nextID)
|
||
}
|
||
|
||
func (p *Plugin) handleCreate(s *sdk.PluginSDK, args map[string]interface{}) (interface{}, error) {
|
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command, _ := args["command"].(string)
|
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if command == "" {
|
||
command = "bash"
|
||
}
|
||
|
||
timeoutStr, _ := args["timeout"].(string)
|
||
timeout := DefaultTimeout
|
||
if timeoutStr != "" {
|
||
if d, err := time.ParseDuration(timeoutStr); err == nil {
|
||
timeout = d
|
||
}
|
||
}
|
||
// SSH 命令自动使用更长的超时（5 分钟）
|
||
if timeoutStr == "" && (strings.HasPrefix(command, "ssh ") || strings.HasPrefix(command, "ssh -")) {
|
||
timeout = 5 * time.Minute
|
||
}
|
||
|
||
rows := uint16(24)
|
||
cols := uint16(80)
|
||
if r, ok := args["rows"].(float64); ok && r > 0 {
|
||
rows = uint16(r)
|
||
}
|
||
if c, ok := args["cols"].(float64); ok && c > 0 {
|
||
cols = uint16(c)
|
||
}
|
||
|
||
master, slave, err := openPty()
|
||
if err != nil {
|
||
return map[string]interface{}{"error": fmt.Sprintf("创建 PTY 失败: %v", err)}, nil
|
||
}
|
||
|
||
cmd := exec.Command("sh", "-c", command)
|
||
cmd.Stdin = slave
|
||
cmd.Stdout = slave
|
||
cmd.Stderr = slave
|
||
cmd.SysProcAttr = &syscall.SysProcAttr{
|
||
Setsid: true,
|
||
Setctty: true,
|
||
Ctty: 0,
|
||
}
|
||
|
||
if err := cmd.Start(); err != nil {
|
||
master.Close()
|
||
slave.Close()
|
||
return map[string]interface{}{"error": fmt.Sprintf("启动命令失败: %v", err)}, nil
|
||
}
|
||
|
||
slave.Close()
|
||
|
||
session := &TerminalSession{
|
||
cmd: cmd,
|
||
master: master,
|
||
createdAt: time.Now(),
|
||
timeout: timeout,
|
||
stopCh: make(chan struct{}),
|
||
done: make(chan struct{}),
|
||
}
|
||
|
||
p.mu.Lock()
|
||
id := p.nextIDLocked()
|
||
session.id = id
|
||
p.sessions[id] = session
|
||
|
||
ws := winsize{Row: rows, Col: cols}
|
||
ioctl(uintptr(master.Fd()), TIOCSWINSZ, unsafe.Pointer(&ws))
|
||
p.mu.Unlock()
|
||
|
||
p.wg.Add(1)
|
||
go p.readLoop(session, s)
|
||
|
||
log.Printf("[agentcli] created terminal %s: command=%q timeout=%v rows=%d cols=%d", id, command, timeout, rows, cols)
|
||
|
||
return map[string]interface{}{
|
||
"id": id,
|
||
"status": "created",
|
||
"command": command,
|
||
"timeout": timeout.String(),
|
||
"rows": rows,
|
||
"cols": cols,
|
||
}, nil
|
||
}
|
||
|
||
func (p *Plugin) handleWrite(s *sdk.PluginSDK, args map[string]interface{}) (interface{}, error) {
|
||
id, _ := args["id"].(string)
|
||
if id == "" {
|
||
return map[string]interface{}{"error": "id is required"}, nil
|
||
}
|
||
|
||
p.mu.Lock()
|
||
session, ok := p.sessions[id]
|
||
p.mu.Unlock()
|
||
if !ok {
|
||
return map[string]interface{}{"error": fmt.Sprintf("终端 %s 不存在或已关闭", id)}, nil
|
||
}
|
||
|
||
input, _ := args["input"].(string)
|
||
key, _ := args["key"].(string)
|
||
|
||
var data []byte
|
||
|
||
if key != "" {
|
||
b, err := mapKey(key)
|
||
if err != nil {
|
||
return map[string]interface{}{"error": err.Error()}, nil
|
||
}
|
||
data = b
|
||
} else if input != "" {
|
||
data = []byte(input)
|
||
} else {
|
||
return map[string]interface{}{"error": "需要提供 input 或 key 参数"}, nil
|
||
}
|
||
|
||
n, err := session.Write(string(data))
|
||
if err != nil {
|
||
return map[string]interface{}{"error": fmt.Sprintf("写入失败: %v", err)}, nil
|
||
}
|
||
|
||
return map[string]interface{}{
|
||
"status": "ok",
|
||
"bytes": n,
|
||
"terminal": id,
|
||
}, nil
|
||
}
|
||
|
||
func (p *Plugin) handleRead(args map[string]interface{}) (interface{}, error) {
|
||
id, _ := args["id"].(string)
|
||
if id == "" {
|
||
return map[string]interface{}{"error": "id is required"}, nil
|
||
}
|
||
|
||
clear := true
|
||
if v, ok := args["clear"].(bool); ok {
|
||
clear = v
|
||
}
|
||
|
||
p.mu.Lock()
|
||
session, ok := p.sessions[id]
|
||
p.mu.Unlock()
|
||
if !ok {
|
||
return map[string]interface{}{"error": fmt.Sprintf("终端 %s 不存在或已关闭", id)}, nil
|
||
}
|
||
|
||
var output string
|
||
if clear {
|
||
output = session.ReadAndClearOutput()
|
||
} else {
|
||
output = session.ReadOutput()
|
||
}
|
||
|
||
if output == "" {
|
||
output = "[终端无新输出]"
|
||
}
|
||
|
||
return map[string]interface{}{
|
||
"status": "ok",
|
||
"terminal": id,
|
||
"output": output,
|
||
"running": session.cmd.ProcessState == nil || !session.cmd.ProcessState.Exited(),
|
||
"uptime": time.Since(session.createdAt).String(),
|
||
}, nil
|
||
}
|
||
|
||
func (p *Plugin) handleResize(args map[string]interface{}) (interface{}, error) {
|
||
id, _ := args["id"].(string)
|
||
if id == "" {
|
||
return map[string]interface{}{"error": "id is required"}, nil
|
||
}
|
||
|
||
rows, okRows := args["rows"].(float64)
|
||
cols, okCols := args["cols"].(float64)
|
||
if !okRows || !okCols {
|
||
return map[string]interface{}{"error": "rows 和 cols 为必填"}, nil
|
||
}
|
||
|
||
p.mu.Lock()
|
||
session, ok := p.sessions[id]
|
||
p.mu.Unlock()
|
||
if !ok {
|
||
return map[string]interface{}{"error": fmt.Sprintf("终端 %s 不存在或已关闭", id)}, nil
|
||
}
|
||
|
||
if err := session.Resize(uint16(rows), uint16(cols)); err != nil {
|
||
return map[string]interface{}{"error": fmt.Sprintf("调整尺寸失败: %v", err)}, nil
|
||
}
|
||
|
||
return map[string]interface{}{
|
||
"status": "ok",
|
||
"terminal": id,
|
||
"rows": rows,
|
||
"cols": cols,
|
||
}, nil
|
||
}
|
||
|
||
func (p *Plugin) handleClose(args map[string]interface{}) (interface{}, error) {
|
||
id, _ := args["id"].(string)
|
||
if id == "" {
|
||
return map[string]interface{}{"error": "id is required"}, nil
|
||
}
|
||
|
||
p.mu.Lock()
|
||
session, ok := p.sessions[id]
|
||
if ok {
|
||
delete(p.sessions, id)
|
||
}
|
||
p.mu.Unlock()
|
||
|
||
if !ok {
|
||
return map[string]interface{}{"error": fmt.Sprintf("终端 %s 不存在或已关闭", id)}, nil
|
||
}
|
||
|
||
session.Close()
|
||
log.Printf("[agentcli] closed terminal %s", id)
|
||
|
||
return map[string]interface{}{
|
||
"status": "closed",
|
||
"terminal": id,
|
||
}, nil
|
||
}
|
||
|
||
func (p *Plugin) handleList() (interface{}, error) {
|
||
p.mu.Lock()
|
||
defer p.mu.Unlock()
|
||
|
||
type termInfo struct {
|
||
ID string `json:"id"`
|
||
Command string `json:"command"`
|
||
Uptime string `json:"uptime"`
|
||
ExpiresIn string `json:"expires_in"`
|
||
Running bool `json:"running"`
|
||
}
|
||
|
||
var terms []termInfo
|
||
for _, t := range p.sessions {
|
||
running := t.cmd.ProcessState == nil || !t.cmd.ProcessState.Exited()
|
||
remaining := t.timeout - time.Since(t.createdAt)
|
||
if remaining < 0 {
|
||
remaining = 0
|
||
}
|
||
terms = append(terms, termInfo{
|
||
ID: t.id,
|
||
Uptime: time.Since(t.createdAt).Round(time.Second).String(),
|
||
ExpiresIn: remaining.Round(time.Second).String(),
|
||
Running: running,
|
||
})
|
||
}
|
||
|
||
if terms == nil {
|
||
terms = []termInfo{}
|
||
}
|
||
|
||
return map[string]interface{}{
|
||
"status": "ok",
|
||
"count": len(terms),
|
||
"terminals": terms,
|
||
}, nil
|
||
}
|
||
|
||
func (p *Plugin) readLoop(t *TerminalSession, s *sdk.PluginSDK) {
|
||
defer p.wg.Done()
|
||
defer close(t.done)
|
||
|
||
buf := make([]byte, ReadBufSize)
|
||
lastNotify := time.Now()
|
||
pollInterval := 200 * time.Millisecond
|
||
|
||
readCh := make(chan readResult, 4)
|
||
go p.reader(t, buf, readCh)
|
||
|
||
for {
|
||
if t.IsExpired() {
|
||
log.Printf("[agentcli] terminal %s expired after %v", t.id, t.timeout)
|
||
s.InjectText("agentcli", "agentcli", fmt.Sprintf("[终端 %s 已超时关闭（%s）]", t.id, t.timeout))
|
||
p.mu.Lock()
|
||
delete(p.sessions, t.id)
|
||
p.mu.Unlock()
|
||
return
|
||
}
|
||
|
||
if t.cmd.ProcessState != nil && t.cmd.ProcessState.Exited() {
|
||
s.InjectText("agentcli", "agentcli", fmt.Sprintf("[终端 %s 中的进程已退出]", t.id))
|
||
p.mu.Lock()
|
||
delete(p.sessions, t.id)
|
||
p.mu.Unlock()
|
||
return
|
||
}
|
||
|
||
select {
|
||
case <-t.stopCh:
|
||
return
|
||
case r := <-readCh:
|
||
if r.err != nil {
|
||
return
|
||
}
|
||
if r.n > 0 {
|
||
data := make([]byte, r.n)
|
||
copy(data, buf[:r.n])
|
||
t.appendOutput(data)
|
||
if time.Since(lastNotify) > NotifyOutputDelay {
|
||
preview := string(data)
|
||
if len(preview) > 100 {
|
||
preview = preview[:100]
|
||
}
|
||
preview = sanitizePreview(preview)
|
||
s.InjectText("agentcli", "agentcli", fmt.Sprintf("[终端 %s 有新输出]\n%s", t.id, preview))
|
||
lastNotify = time.Now()
|
||
}
|
||
}
|
||
case <-time.After(pollInterval):
|
||
}
|
||
}
|
||
}
|
||
|
||
type readResult struct {
|
||
n int
|
||
err error
|
||
}
|
||
|
||
func (p *Plugin) reader(t *TerminalSession, buf []byte, ch chan<- readResult) {
|
||
for {
|
||
n, err := t.master.Read(buf)
|
||
select {
|
||
case ch <- readResult{n, err}:
|
||
case <-t.stopCh:
|
||
return
|
||
}
|
||
if err != nil {
|
||
return
|
||
}
|
||
}
|
||
}
|
||
|
||
func (p *Plugin) cleanupLoop(s *sdk.PluginSDK) {
|
||
defer p.wg.Done()
|
||
ticker := time.NewTicker(30 * time.Second)
|
||
defer ticker.Stop()
|
||
|
||
for {
|
||
select {
|
||
case <-p.stopCh:
|
||
return
|
||
case <-ticker.C:
|
||
p.mu.Lock()
|
||
for id, t := range p.sessions {
|
||
if t.IsExpired() {
|
||
log.Printf("[agentcli] cleanup: terminal %s expired", id)
|
||
delete(p.sessions, id)
|
||
go func(term *TerminalSession) {
|
||
term.Close()
|
||
}(t)
|
||
}
|
||
if t.cmd.ProcessState != nil && t.cmd.ProcessState.Exited() {
|
||
log.Printf("[agentcli] cleanup: terminal %s process exited", id)
|
||
delete(p.sessions, id)
|
||
go func(term *TerminalSession) {
|
||
term.Close()
|
||
}(t)
|
||
}
|
||
}
|
||
p.mu.Unlock()
|
||
}
|
||
}
|
||
}
|
||
|
||
func mapKey(key string) ([]byte, error) {
|
||
key = strings.ToLower(key)
|
||
switch key {
|
||
case "enter":
|
||
return []byte{0x0D}, nil
|
||
case "tab":
|
||
return []byte{0x09}, nil
|
||
case "escape", "esc":
|
||
return []byte{0x1B}, nil
|
||
case "backspace":
|
||
return []byte{0x7F}, nil
|
||
case "delete":
|
||
return []byte{0x1B, 0x5B, 0x33, 0x7E}, nil
|
||
case "home":
|
||
return []byte{0x1B, 0x5B, 0x48}, nil
|
||
case "end":
|
||
return []byte{0x1B, 0x5B, 0x46}, nil
|
||
case "page_up":
|
||
return []byte{0x1B, 0x5B, 0x35, 0x7E}, nil
|
||
case "page_down":
|
||
return []byte{0x1B, 0x5B, 0x36, 0x7E}, nil
|
||
case "up":
|
||
return []byte{0x1B, 0x5B, 0x41}, nil
|
||
case "down":
|
||
return []byte{0x1B, 0x5B, 0x42}, nil
|
||
case "right":
|
||
return []byte{0x1B, 0x5B, 0x43}, nil
|
||
case "left":
|
||
return []byte{0x1B, 0x5B, 0x44}, nil
|
||
}
|
||
|
||
if strings.HasPrefix(key, "ctrl_") && len(key) == 6 {
|
||
c := key[5]
|
||
if c >= 'a' && c <= 'z' {
|
||
return []byte{byte(c - 'a' + 1)}, nil
|
||
}
|
||
}
|
||
|
||
if strings.HasPrefix(key, "alt_") && len(key) == 5 {
|
||
c := key[4]
|
||
if c >= 'a' && c <= 'z' {
|
||
return []byte{0x1B, c}, nil
|
||
}
|
||
}
|
||
|
||
if strings.HasPrefix(key, "f") && len(key) <= 4 {
|
||
var n int
|
||
if _, err := fmt.Sscanf(key, "f%d", &n); err == nil && n >= 1 && n <= 12 {
|
||
return functionKeyCode(n), nil
|
||
}
|
||
}
|
||
|
||
return nil, fmt.Errorf("不支持的特殊按键: %s", key)
|
||
}
|
||
|
||
func functionKeyCode(n int) []byte {
|
||
switch n {
|
||
case 1:
|
||
return []byte{0x1B, 0x5B, 0x50}
|
||
case 2:
|
||
return []byte{0x1B, 0x5B, 0x51}
|
||
case 3:
|
||
return []byte{0x1B, 0x5B, 0x52}
|
||
case 4:
|
||
return []byte{0x1B, 0x5B, 0x53}
|
||
case 5:
|
||
return []byte{0x1B, 0x5B, 0x31, 0x35, 0x7E}
|
||
case 6:
|
||
return []byte{0x1B, 0x5B, 0x31, 0x37, 0x7E}
|
||
case 7:
|
||
return []byte{0x1B, 0x5B, 0x31, 0x38, 0x7E}
|
||
case 8:
|
||
return []byte{0x1B, 0x5B, 0x31, 0x39, 0x7E}
|
||
case 9:
|
||
return []byte{0x1B, 0x5B, 0x32, 0x30, 0x7E}
|
||
case 10:
|
||
return []byte{0x1B, 0x5B, 0x32, 0x31, 0x7E}
|
||
case 11:
|
||
return []byte{0x1B, 0x5B, 0x32, 0x32, 0x7E}
|
||
case 12:
|
||
return []byte{0x1B, 0x5B, 0x32, 0x34, 0x7E}
|
||
default:
|
||
return []byte{}
|
||
}
|
||
}
|
||
|
||
func isTimeoutError(err error) bool {
|
||
if err == nil {
|
||
return false
|
||
}
|
||
if opErr, ok := err.(*os.PathError); ok {
|
||
err = opErr.Err
|
||
}
|
||
if syscallErr, ok := err.(syscall.Errno); ok {
|
||
return syscallErr == syscall.EAGAIN || syscallErr == syscall.EWOULDBLOCK || syscallErr == syscall.ETIMEDOUT
|
||
}
|
||
return strings.Contains(err.Error(), "timeout") || strings.Contains(err.Error(), "would block")
|
||
}
|
||
|
||
func sanitizePreview(s string) string {
|
||
var buf bytes.Buffer
|
||
for _, r := range s {
|
||
if r == '\n' {
|
||
buf.WriteString("\\n")
|
||
} else if r == '\r' {
|
||
buf.WriteString("\\r")
|
||
} else if r == '\t' {
|
||
buf.WriteString("\\t")
|
||
} else if r >= 32 && r <= 126 {
|
||
buf.WriteRune(r)
|
||
} else if r == 0x1B {
|
||
buf.WriteString("^[")
|
||
} else if r < 32 {
|
||
fmt.Fprintf(&buf, "^%c", r+'A'-1)
|
||
} else {
|
||
buf.WriteRune(r)
|
||
}
|
||
}
|
||
return buf.String()
|
||
}
|