/
client.go
234 lines (203 loc) · 6.12 KB
/
client.go
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package httpclient
import (
"bytes"
"context"
"crypto/tls"
"errors"
"fmt"
"github.com/yoyofx/yoyogo/abstractions/servicediscovery"
"io/ioutil"
"net"
"net/http"
"strings"
"time"
)
type Client struct {
defaultTransport *http.Transport
BaseUrl string
selector servicediscovery.ISelector
hasSelector bool
}
func NewClient() *Client {
return &Client{defaultTransport: &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
DualStack: true,
}).DialContext,
ForceAttemptHTTP2: true,
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}}
}
// WithFormRequest 快速配置表单请求类型
func WithFormRequest(params map[string]interface{}) *Request {
defaultHeader := make(http.Header)
defaultHeader.Set("Content-Type", "application/x-www-form-urlencoded")
request := &Request{header: defaultHeader, contentType: "application/x-www-form-urlencoded", params: params, timeout: 5, cookieData: make(map[string]*http.Cookie)}
return request
}
func WithRequest() *Request {
return &Request{header: make(http.Header), timeout: 5, cookieData: make(map[string]*http.Cookie)}
}
// WithFormRequest 快速配置表单请求类型
func WithJsonRequest(json string) *Request {
defaultHeader := make(http.Header)
defaultHeader.Set("Content-Type", "application/json")
request := &Request{header: defaultHeader, contentType: "application/json", requestBody: []byte(json), timeout: 5, cookieData: make(map[string]*http.Cookie)}
return request
}
// RunGet 执行Get请求
func (c *Client) Get(request *Request) (clientResp *Response, err error) {
if request.errorRaw != "" {
return nil, request.Error()
}
var defaultClient = &http.Client{}
if request.cooJar != nil {
defaultClient.Jar = request.cooJar
}
transport := c.defaultTransport
transport.DisableKeepAlives = request.disableKeepAlives
if request.skipHttps == true {
transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
}
defaultClient.Transport = http.RoundTripper(transport)
req, err := http.NewRequest("GET", request.url, nil)
if err != nil {
return nil, err
}
timeSt := time.Now()
// 超时设置
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(request.timeout)*time.Second)
defer cancel()
req = req.WithContext(ctx)
if request.host != "" {
req.Host = request.host
}
if request.header == nil {
request.header = http.Header{}
}
request.header.Set("Cookie", "")
req.Header = request.header
resp, err := defaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
for _, item := range resp.Cookies() {
request.setCookieData(item.Name, item)
}
requestTime := time.Now().Sub(timeSt)
body, err := ioutil.ReadAll(resp.Body)
resp.Body = ioutil.NopCloser(bytes.NewReader(body))
clientResp = &Response{
BodyRaw: resp,
Body: body,
RequestTime: requestTime,
CookieData: request.cookieData,
}
return clientResp, err
}
// RunGet 执行Post请求
func (c *Client) Post(request *Request) (clientResp *Response, err error) {
clientResp = &Response{
CookieData: request.cookieData,
}
if len(request.params) > 0 || len(request.files) > 0 {
request.paraseParams()
}
if request.errorRaw != "" {
return nil, request.Error()
}
var defaultClient = &http.Client{}
if request.cooJar != nil {
defaultClient.Jar = request.cooJar
}
transport := c.defaultTransport
transport.DisableKeepAlives = request.disableKeepAlives
if request.skipHttps == true {
transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
}
defaultClient.Transport = http.RoundTripper(transport)
req, err := http.NewRequest("POST", request.url, bytes.NewBuffer(request.requestBody))
if err != nil {
return nil, err
}
timeSt := time.Now()
// 超时设置
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(request.timeout)*time.Second)
defer cancel()
req = req.WithContext(ctx)
request.header.Set("Cookie", "")
req.Header = request.header
req.Header.Set("Content-Type", request.contentType)
if request.host != "" {
req.Host = request.host
}
resp, err := defaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
for _, item := range resp.Cookies() {
request.setCookieData(item.Name, item)
}
requestTime := time.Now().Sub(timeSt)
body, err := ioutil.ReadAll(resp.Body)
resp.Body = ioutil.NopCloser(bytes.NewReader(body))
clientResp.BodyRaw = resp
clientResp.Body = body
clientResp.RequestTime = requestTime
return clientResp, err
}
func (c *Client) Do(request *Request) (clientResp *Response, err error) {
if request.method == "" {
return nil, errors.New("this request is no method set.")
}
//如果Url没有包含http,则认为需要添加baseUrl
if !strings.HasPrefix(request.url, "http") {
if c.BaseUrl == "" {
return nil, errors.New("url don't have host and client don't config baseUrl please config")
}
request.url = c.SplicingUrl(c.BaseUrl, request.url)
}
//如果设置了selector需要去匹配服务
if c.hasSelector {
//获取当前服务名称
serverName := strings.Split(strings.Split(request.url, "[")[1], "]")[0]
if serverName == "" {
return nil, errors.New("url don't contains serveName")
}
//获取服务实例
serverInstance, err := c.selector.Select(serverName)
if err != nil {
return nil, err
}
//根据服务名称进行url转化
parser := servicediscovery.NewUriParser(request.url)
request.url = parser.Generate(fmt.Sprintf("%s:%v", serverInstance.GetHost(), serverInstance.GetPort()))
}
if request.method == "GET" {
clientResp, err = c.Get(request)
} else { // POST
clientResp, err = c.Post(request)
}
return clientResp, err
}
func (*Client) SplicingUrl(baseUrl string, url string) string {
if baseUrl != "" && url != "" {
baeLastStr := baseUrl[len(baseUrl)-1:]
urlFirstStr := url[:1]
urlLastStr := url[len(url)-1:]
if baeLastStr == "/" && urlFirstStr == "/" {
baseUrl = baseUrl[:len(baseUrl)-1]
}
if urlLastStr == "/" {
url = url[:len(url)-1]
}
}
return baseUrl + url
}