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request.go
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request.go
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package request
import (
"bytes"
"compress/flate"
"compress/gzip"
"encoding/json"
"io"
"net/http"
"net/http/cookiejar"
urlPkg "net/url"
"os"
"path"
"time"
)
var (
ReqSiteConfig = ReadNodeSiteConfig()
httpProxy = "http://127.0.0.1:10809"
ua = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/116.0.0.0 Safari/537.36"
)
type SiteConfig struct {
HttpsAgent string `json:"httpsAgent,omitempty"`
Headers map[string]string `json:"headers,omitempty"`
}
type NodeSiteConfig = map[string]SiteConfig
func ReadNodeSiteConfig() NodeSiteConfig {
filename := "node-site-config.json"
config := make(NodeSiteConfig)
if _, err := os.Stat(filename); err != nil {
home, _ := os.UserHomeDir()
filename = path.Join(home, filename)
if _, err := os.Stat(filename); err != nil {
return config
}
}
file, _ := os.ReadFile(filename)
json.Unmarshal(file, &config)
return config
}
func Request(method, url string, body io.Reader, headers map[string]string) (*http.Response, error) {
req, err := http.NewRequest(method, url, body)
if err != nil {
return nil, err
}
req.Header.Set("User-Agent", ua)
var p func(*http.Request) (*urlPkg.URL, error)
curConfig, ok := ReqSiteConfig[req.URL.Host]
if ok {
if curConfig.HttpsAgent != "" {
u, _ := http.ProxyFromEnvironment(req)
if u == nil {
proxy, _ := urlPkg.Parse(httpProxy)
p = http.ProxyURL(proxy)
} else {
p = http.ProxyFromEnvironment
}
}
if curConfig.Headers != nil {
for k, v := range curConfig.Headers {
req.Header.Set(k, v)
}
}
}
transport := &http.Transport{
Proxy: p,
DisableCompression: true,
TLSHandshakeTimeout: 10 * time.Second,
// TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
jar, err := cookiejar.New(nil)
if err != nil {
return nil, err
}
client := &http.Client{
Transport: transport,
Timeout: 20 * time.Second,
Jar: jar,
}
for k, v := range headers {
req.Header.Set(k, v)
}
return client.Do(req)
}
func GetByte(url string, headers map[string]string) ([]byte, error) {
if headers == nil {
headers = make(map[string]string)
}
res, err := Request("GET", url, nil, headers)
if err != nil {
return nil, err
}
defer res.Body.Close()
var reader io.ReadCloser
switch res.Header.Get("Content-Encoding") {
case "gzip":
reader, _ = gzip.NewReader(res.Body)
case "deflate":
reader = flate.NewReader(res.Body)
default:
reader = res.Body
}
defer reader.Close()
body, err := io.ReadAll(reader)
if err != nil && err != io.EOF {
return nil, err
}
return body, nil
}
func Get(url string, headers map[string]string) (string, error) {
if headers == nil {
headers = make(map[string]string)
}
body, err := GetByte(url, headers)
if err != nil {
return "", err
}
return string(body), nil
}
func PostJson(url string, body []byte, headers map[string]string) (string, error) {
if headers == nil {
headers = make(map[string]string)
}
headers["Content-Type"] = "application/json; charset=UTF-8"
res, err := Request("POST", url, bytes.NewBuffer(body), headers)
if err != nil {
return "", err
}
defer res.Body.Close()
body, err = io.ReadAll(res.Body)
if err != nil && err != io.EOF {
return "", err
}
return string(body), nil
}
func PostForm(url string, data urlPkg.Values, headers map[string]string) (string, error) {
if headers == nil {
headers = make(map[string]string)
}
headers["Content-Type"] = "application/x-www-form-urlencoded"
res, err := Request("POST", url, bytes.NewBufferString(data.Encode()), headers)
if err != nil {
return "", err
}
defer res.Body.Close()
body, err := io.ReadAll(res.Body)
if err != nil && err != io.EOF {
return "", err
}
return string(body), nil
}