完成基础功能
This commit is contained in:
165
libs/request.go
165
libs/request.go
@@ -1,7 +1,6 @@
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package libs
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import (
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"bufio"
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"bytes"
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"context"
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"encoding/json"
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@@ -12,17 +11,32 @@ import (
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"net/http"
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"strings"
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"time"
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"github.com/zhuy1228/go-mobile-uiautomator/adb"
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)
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// ---------- 外部接口和类型定义 ----------
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// AdbDevice 定义了通过 ADB 隧道创建设备连接的接口
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// AdbDevice 定义了设备连接接口
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type AdbDevice interface {
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// CreateConnection 建立到设备的 TCP 连接
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// network 通常为 "tcp",port 为设备上服务监听端口
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CreateConnection(network string, port int) (net.Conn, error)
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}
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// AdbTunnelDevice 通过 ADB 隧道直连设备(与 Python uiautomator2 完全一致)
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// 每次 CreateConnection 会建立一条新的 ADB 隧道,无需 adb forward,无需端口管理
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// 等同于 Python 中 AdbHTTPConnection 继承 HTTPConnection 并重写 connect() 的方案
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type AdbTunnelDevice struct {
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AdbAddr string // ADB 服务器地址
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Serial string // 设备序列号
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}
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// CreateConnection 建立到设备指定端口的 ADB 隧道连接
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func (d *AdbTunnelDevice) CreateConnection(network string, port int) (net.Conn, error) {
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return adb.CreateTunnel(d.AdbAddr, d.Serial, port)
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}
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// HTTPResponse 封装 HTTP 响应数据
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type HTTPResponse struct {
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Content []byte // 响应体内容
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@@ -49,126 +63,25 @@ var (
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ErrHTTPFailed = errors.New("HTTP 请求失败")
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)
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// ---------- AdbHTTPConnection:通过 ADB 隧道发送 HTTP 请求 ----------
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// AdbHTTPConnection 基于 net.Conn 实现的 HTTP 连接
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// 通过 ADB 端口转发直接与设备端 UIAutomator2 服务通信
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type AdbHTTPConnection struct {
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Conn net.Conn
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}
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// NewAdbHTTPConnection 创建一个新的 ADB HTTP 连接
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// dev 为设备接口,port 为设备端服务端口,timeout 为连接超时
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func NewAdbHTTPConnection(dev AdbDevice, port int, timeout time.Duration) (*AdbHTTPConnection, error) {
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conn, err := dev.CreateConnection("tcp", port)
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if err != nil {
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return nil, fmt.Errorf("无法连接到 UIAutomator2 服务: %w", err)
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}
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_ = conn.SetDeadline(time.Now().Add(timeout))
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return &AdbHTTPConnection{Conn: conn}, nil
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}
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// Close 关闭底层连接
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func (c *AdbHTTPConnection) Close() error {
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if c.Conn != nil {
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return c.Conn.Close()
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}
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return nil
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}
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// sendRequest 将 HTTP 请求写入连接并读取响应
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// 通过原始 TCP 连接发送 HTTP 报文,避免依赖标准 http.Client
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func (c *AdbHTTPConnection) sendRequest(req *http.Request, timeout time.Duration) (*http.Response, error) {
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// 设置读写截止时间
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if timeout > 0 {
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_ = c.Conn.SetDeadline(time.Now().Add(timeout))
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} else {
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_ = c.Conn.SetDeadline(time.Time{})
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}
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// 序列化 HTTP 请求为原始报文
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var buf bytes.Buffer
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// 请求行:METHOD PATH HTTP/1.1
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path := req.URL.RequestURI()
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if path == "" {
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path = "/"
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}
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fmt.Fprintf(&buf, "%s %s HTTP/1.1\r\n", req.Method, path)
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fmt.Fprintf(&buf, "Host: localhost\r\n")
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// 设置默认请求头
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if req.Header.Get("User-Agent") == "" {
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req.Header.Set("User-Agent", "uiautomator2")
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}
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if req.Header.Get("Accept-Encoding") == "" {
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req.Header.Set("Accept-Encoding", "")
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}
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if req.Header.Get("Content-Type") == "" {
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req.Header.Set("Content-Type", "application/json")
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}
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// 写入请求头
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for k, vals := range req.Header {
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for _, v := range vals {
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fmt.Fprintf(&buf, "%s: %s\r\n", k, v)
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}
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}
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// 处理请求体
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var bodyBytes []byte
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if req.Body != nil {
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var err error
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bodyBytes, err = io.ReadAll(req.Body)
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if err != nil {
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return nil, fmt.Errorf("读取请求体失败: %w", err)
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}
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fmt.Fprintf(&buf, "Content-Length: %d\r\n", len(bodyBytes))
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} else {
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fmt.Fprintf(&buf, "Content-Length: 0\r\n")
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}
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// 请求头与请求体之间的空行
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buf.WriteString("\r\n")
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// 发送请求头
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if _, err := c.Conn.Write(buf.Bytes()); err != nil {
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return nil, fmt.Errorf("发送请求头失败: %w", err)
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}
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// 发送请求体
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if len(bodyBytes) > 0 {
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if _, err := c.Conn.Write(bodyBytes); err != nil {
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return nil, fmt.Errorf("发送请求体失败: %w", err)
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}
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}
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// 使用标准库解析 HTTP 响应
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reader := bufio.NewReader(c.Conn)
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resp, err := http.ReadResponse(reader, req)
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if err != nil {
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return nil, fmt.Errorf("读取 HTTP 响应失败: %w", err)
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}
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return resp, nil
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}
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// ---------- HttpRequest:高层 HTTP 请求封装 ----------
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// ---------- HttpRequest:通过标准 HTTP 客户端发送请求 ----------
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// HttpRequest 向设备端 UIAutomator2 服务发送 HTTP 请求
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// ctx 为上下文控制,dev 为设备接口,devicePort 为设备端服务端口
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// method 为 HTTP 方法,path 为请求路径
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// data 为请求体数据(会被 JSON 编码),timeoutSecs 为超时秒数
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// printRequest 为 true 时输出 curl 风格的调试信息
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// 使用 Go 标准 http.Client + 自定义 ADB 隧道 Dialer,与 Python uiautomator2 完全一致
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//
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// 工作原理(与 Python 的 AdbHTTPConnection 等价):
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// 1. http.Transport 的 DialContext 会为每个请求建立一条新的 ADB 隧道
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// 2. 标准 http.Client 在这条隧道上发送完整的 HTTP/1.1 请求
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// 3. 请求完成后隧道自动关闭,无需额外清理
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func HttpRequest(ctx context.Context, dev AdbDevice, devicePort int, method, path string, data map[string]interface{}, timeoutSecs float64, printRequest bool) (*HTTPResponse, error) {
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// 默认超时 10 秒
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if timeoutSecs <= 0 {
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timeoutSecs = 10.0
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}
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timeout := time.Duration(timeoutSecs * float64(time.Second))
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// 调试模式:打印 curl 风格的请求信息
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if printRequest {
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now := time.Now().Format("15:04:05.000")
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url := fmt.Sprintf("http://127.0.0.1:%d%s", devicePort, path)
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url := fmt.Sprintf("http://<adb-tunnel>:%d%s", devicePort, path)
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if data != nil {
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b, _ := json.Marshal(data)
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fmt.Printf("# HTTP 超时=%.3f\n%s $ curl -X %s %s -d '%s'\n", timeoutSecs, now, method, url, string(b))
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@@ -177,7 +90,9 @@ func HttpRequest(ctx context.Context, dev AdbDevice, devicePort int, method, pat
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}
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}
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// 构造 HTTP 请求
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// 构造 HTTP 请求体
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// URL 中的 host:port 会被自定义 DialContext 忽略,实际连接通过 ADB 隧道
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url := fmt.Sprintf("http://127.0.0.1:%d%s", devicePort, path)
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var body io.Reader
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if data != nil {
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b, err := json.Marshal(data)
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@@ -186,23 +101,27 @@ func HttpRequest(ctx context.Context, dev AdbDevice, devicePort int, method, pat
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}
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body = bytes.NewReader(b)
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}
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req, err := http.NewRequestWithContext(ctx, method, "http://localhost"+path, body)
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req, err := http.NewRequestWithContext(ctx, method, url, body)
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if err != nil {
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return nil, fmt.Errorf("创建 HTTP 请求失败: %w", err)
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}
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req.Header.Set("User-Agent", "uiautomator2")
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req.Header.Set("Accept-Encoding", "")
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Content-Type", "application/json; charset=utf-8")
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// 建立到设备的连接
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connWrapper, err := NewAdbHTTPConnection(dev, devicePort, timeout)
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if err != nil {
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return nil, err
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// 核心:自定义 Transport,用 ADB 隧道替代普通 TCP 连接
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// 这与 Python 中 AdbHTTPConnection.connect() 重写 self.sock 的做法完全等价
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transport := &http.Transport{
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DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
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return dev.CreateConnection("tcp", devicePort)
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},
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DisableKeepAlives: true, // 每次请求独立隧道,与 Python 行为一致
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}
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client := &http.Client{
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Transport: transport,
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Timeout: time.Duration(timeoutSecs * float64(time.Second)),
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}
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defer connWrapper.Close()
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// 发送请求并读取响应
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resp, err := connWrapper.sendRequest(req, timeout)
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resp, err := client.Do(req)
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if err != nil {
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var netErr net.Error
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if errors.As(err, &netErr) && netErr.Timeout() {
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