/
api.go
210 lines (178 loc) · 4.23 KB
/
api.go
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package requests
import (
"errors"
"fmt"
"io"
"net/http"
"strings"
"time"
)
func setCookies(cookies KV, cookiesJar []*http.Cookie) {
for _, cookie := range cookiesJar {
if cookies.Get(cookie.Name) == "" {
cookies.Set(cookie.Name, cookie.Value)
}
}
}
func retry(p *P, session *Session) bool {
fmt.Printf("retry:%d\n", p.Retry)
if p.MaxRetry > 0 {
if p.Retry < p.MaxRetry {
time.Sleep(30 * time.Millisecond)
return true
}
} else if session.MaxRetry > 0 {
if p.Retry < session.MaxRetry {
time.Sleep(30 * time.Millisecond)
return true
}
}
return false
}
func (session *Session) Request(url string, p *P) (*Response, error) {
var err error
if p.Method == "" {
p.Method = GET
}
if !strings.HasPrefix(url, "http") {
if session.BaseUrl != "" {
url = session.BaseUrl + url
} else {
return nil, errors.New(fmt.Sprintf("%s Scheme Error!", url))
}
}
// 设置超时
if p.Timeout > 0 {
session.client.Timeout = p.Timeout * time.Second
} else if session.Timeout > 0 {
session.client.Timeout = session.Timeout * time.Second
}
// 设置代理
if p.Proxies != "" {
err = prepareProxy(p.Proxies, session)
} else if session.Proxies != "" {
err = prepareProxy(session.Proxies, session)
}
if err != nil {
return nil, err
}
// 设置重定向
if p.NotAllowRedirects {
session.client.CheckRedirect = func(req *http.Request, via []*http.Request) error {
setCookies(session.Cookies, req.Response.Cookies())
return http.ErrUseLastResponse
}
} else {
session.client.CheckRedirect = func(req *http.Request, via []*http.Request) error {
setCookies(session.Cookies, req.Response.Cookies())
return nil
}
}
req, err := http.NewRequest(p.Method, url, nil)
if err != nil {
if retry(p, session) {
p.Retry++
fmt.Printf("retry:%d", p.Retry)
return session.Request(url, p)
}
return nil, err
}
err = session.prepare(req)
err = p.prepare(req)
if err != nil {
return nil, err
}
for _, fn := range session.beforeRequestHookFunctions {
err = fn(req)
if err != nil {
return nil, err
}
}
resp, err := session.client.Do(req)
if err != nil {
if retry(p, session) {
p.Retry++
return session.Request(url, p)
}
return nil, err
}
respBody, err := io.ReadAll(resp.Body)
if err != nil {
return nil, err
}
ck := KV{}
setCookies(ck, resp.Cookies())
r := &Response{
Content: respBody,
StatusCode: resp.StatusCode,
Header: resp.Header,
Cookie: ck,
OriginResponse: resp,
}
for _, fn := range session.afterResponseHookFunctions {
err = fn(r)
if err != nil {
return nil, err
}
}
if err != nil {
return nil, err
}
return r, nil
}
func (s *Session) Get(url string, params *P) (*Response, error) {
params.Method = GET
return s.Request(url, params)
}
func (s *Session) Delete(url string, params *P) (*Response, error) {
params.Method = DELETE
return s.Request(url, params)
}
func (s *Session) Post(url string, params *P) (*Response, error) {
params.Method = POST
return s.Request(url, params)
}
func (s *Session) Put(url string, params *P) (*Response, error) {
params.Method = PUT
return s.Request(url, params)
}
func (s *Session) Head(url string, params *P) (*Response, error) {
params.Method = HEAD
return s.Request(url, params)
}
func (s *Session) Options(url string, params *P) (*Response, error) {
params.Method = OPTIONS
return s.Request(url, params)
}
func (s *Session) Patch(url string, params *P) (*Response, error) {
params.Method = PATCH
return s.Request(url, params)
}
func Request(url string, params *P) (*Response, error) {
s := NewSession()
return s.Request(url, params)
}
func Get(url string, params *P) (*Response, error) {
params.Method = GET
return Request(url, params)
}
func Delete(url string, params *P) (*Response, error) {
params.Method = DELETE
return Request(url, params)
}
func Post(url string, params *P) (*Response, error) {
params.Method = POST
return Request(url, params)
}
func Put(url string, params *P) (*Response, error) {
params.Method = PUT
return Request(url, params)
}
func Head(url string, params *P) (*Response, error) {
params.Method = HEAD
return Request(url, params)
}
func Options(url string, params *P) (*Response, error) {
params.Method = OPTIONS
return Request(url, params)
}