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93
network/utils/utils.go
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93
network/utils/utils.go
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@@ -0,0 +1,93 @@
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package utils
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import (
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"context"
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"encoding/json"
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"fmt"
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"net"
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"net/http"
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"reflect"
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"strings"
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"time"
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)
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// FetchJsonFromURL 函数用于从指定的 URL 获取信息
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// url 参数表示要获取信息的 URL
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// netType 参数表示网络类型,只能为 "tcp4" 或 "tcp6"。
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// enableHeader 参数表示是否启用请求头信息。
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// additionalHeader 参数表示传入的额外的请求头信息(用于传输api的key)。
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// 返回一个解析 json 得到的 map 和 一个可能发生的错误 。
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func FetchJsonFromURL(url, netType string, enableHeader bool, additionalHeader string) (map[string]interface{}, error) {
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// 检查网络类型是否有效
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if netType != "tcp4" && netType != "tcp6" {
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return nil, fmt.Errorf("Invalid netType: %s. Expected 'tcp4' or 'tcp6'.", netType)
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}
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// 创建 HTTP 客户端
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client := &http.Client{
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Timeout: 6 * time.Second,
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Transport: &http.Transport{
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DialContext: func(ctx context.Context, network string, addr string) (net.Conn, error) {
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return (&net.Dialer{}).DialContext(ctx, netType, addr)
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},
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TLSHandshakeTimeout: 3 * time.Second,
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ResponseHeaderTimeout: 3 * time.Second,
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ExpectContinueTimeout: 3 * time.Second,
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},
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}
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// 创建 HTTP 请求
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return nil, fmt.Errorf("Error creating request: %v", err)
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}
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// 如果启用请求头,则设置请求头信息
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if enableHeader {
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req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36")
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req.Header.Set("Accept-Language", "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2")
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if additionalHeader != "" {
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tempList := strings.Split(additionalHeader, ":")
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if len(tempList) == 2 {
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req.Header.Set(tempList[0], tempList[1])
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} else if len(tempList) > 2 {
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req.Header.Set(tempList[0], strings.Join(tempList[1:], ":"))
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}
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}
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}
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// 执行 HTTP 请求
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resp, err := client.Do(req)
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if err != nil {
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//fmt.Printf("Error fetching %s info: %v \n", url, err)
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return nil, fmt.Errorf("Error fetching %s info: %v", url, err)
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}
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defer resp.Body.Close()
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// 解析 JSON 响应体
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var data map[string]interface{}
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err = json.NewDecoder(resp.Body).Decode(&data)
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if err != nil {
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//fmt.Printf("Error decoding %s info: %v \n", url, err)
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return nil, fmt.Errorf("Error decoding %s info: %v ", url, err)
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}
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// 返回解析后的数据和 nil 错误
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return data, nil
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}
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// BoolToString 将布尔值转换为对应的字符串表示,true 则返回 "Yes",false 则返回 "No"
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func BoolToString(value bool) string {
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if value {
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return "Yes"
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}
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return "No"
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}
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// ExtractFieldNames 获取结构体的属性名字
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func ExtractFieldNames(data interface{}) []string {
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var fields []string
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val := reflect.ValueOf(data).Elem()
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for i := 0; i < val.NumField(); i++ {
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field := val.Type().Field(i)
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name := field.Name
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if name != "Tag" {
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fields = append(fields, name)
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}
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}
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return fields
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}
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