Feat: send remote uploading callback

pkg/request/request.go

@@ -0,0 +1,106 @@
+package request
+
+import (
+	"github.com/HFO4/cloudreve/pkg/auth"
+	"io"
+	"net/http"
+	"time"
+)
+
+var generalClient Client = HTTPClient{}
+
+// Response 请求的响应或错误信息
+type Response struct {
+	Err      error
+	Response *http.Response
+}
+
+// Client 请求客户端
+type Client interface {
+	Request(method, target string, body io.Reader, opts ...Option) Response
+}
+
+// HTTPClient 实现 Client 接口
+type HTTPClient struct {
+}
+
+// Option 发送请求的额外设置
+type Option interface {
+	apply(*options)
+}
+
+type options struct {
+	timeout time.Duration
+	header  http.Header
+	sign    auth.Auth
+	signTTL int64
+}
+
+type optionFunc func(*options)
+
+func (f optionFunc) apply(o *options) {
+	f(o)
+}
+
+func newDefaultOption() *options {
+	return &options{
+		header:  http.Header{},
+		timeout: time.Duration(30) * time.Second,
+	}
+}
+
+// WithTimeout 设置请求超时
+func WithTimeout(t time.Duration) Option {
+	return optionFunc(func(o *options) {
+		o.timeout = t
+	})
+}
+
+// WithCredential 对请求进行签名
+func WithCredential(instance auth.Auth, ttl int64) Option {
+	return optionFunc(func(o *options) {
+		o.sign = instance
+		o.signTTL = ttl
+	})
+}
+
+// WithHeader 设置请求Header
+func WithHeader(header http.Header) Option {
+	return optionFunc(func(o *options) {
+		o.header = header
+	})
+}
+
+// Request 发送HTTP请求
+func (c HTTPClient) Request(method, target string, body io.Reader, opts ...Option) Response {
+	// 应用额外设置
+	options := newDefaultOption()
+	for _, o := range opts {
+		o.apply(options)
+	}
+
+	// 创建请求客户端
+	client := &http.Client{Timeout: options.timeout}
+
+	// 创建请求
+	req, err := http.NewRequest(method, target, body)
+	if err != nil {
+		return Response{Err: err}
+	}
+
+	// 添加请求header
+	req.Header = options.header
+
+	// 签名请求
+	if options.sign != nil {
+		auth.SignRequest(options.sign, req, time.Now().Unix()+options.signTTL)
+	}
+
+	// 发送请求
+	resp, err := client.Do(req)
+	if err != nil {
+		return Response{Err: err}
+	}
+
+	return Response{Err: nil, Response: resp}
+}