requests/requests_method.go

package requests

import (
	"crypto/tls"
	"errors"
	"net/http"
	"net/url"
	"reflect"
	"time"
)

// Params 相关参数结构
type Params struct {
	// Query       map[string][]string
	IOBody interface{}
	// Files       []UploadFile
	ContentType string
}

// BasicAuth 帐号认真结构
type BasicAuth struct {
	// User 帐号
	User string
	// Password 密码
	Password string
}

// Session 的基本方法
type Session struct {
	client    *http.Client
	transport *http.Transport
	cookies   http.CookieJar
	params    *Params
	auth      *BasicAuth
}

// TypeContent post类型参数
type TypeContent int

const (
	_ TypeContent = iota
	// TypeJSON 类型
	TypeJSON = "application/json"
	// TypeXML 类型
	TypeXML = "text/xml"
	// TypeURLENCODED 类型
	TypeURLENCODED = "application/x-www-form-urlencoded"
	// TypeFormData 类型
	TypeFormData = "multipart/form-data"
)

// TypeConfig 配置类型
type TypeConfig int

const (
	_ TypeConfig = iota
	// ConfigRequestTimeout request 包括 dial request redirect 总时间超时
	ConfigRequestTimeout // 支持time.Duration 和 int(秒为单位)

	// ConfigDialTimeout 一个Connect过程的Timeout
	ConfigDialTimeout // 支持time.Duration 和 int(秒为单位)

	// ConfigProxy 代理链接
	ConfigProxy // http, https, socks5

	// ConfigInsecure InsecureSkipVerify
	ConfigInsecure // true, false

	// ConfigBasicAuth 帐号认证
	ConfigBasicAuth // user pwd

	// ConfigTLS 帐号认证
	ConfigTLS // user pwd
)

// NewSession 创建Session
func NewSession() *Session {
	client := &http.Client{}
	transport := &http.Transport{}
	client.Transport = transport

	return &Session{client: client, params: &Params{}, transport: transport, auth: nil}
}

// SetConfig 设置配置
func (ses *Session) SetConfig(typeConfig TypeConfig, values interface{}) {

	switch typeConfig {
	case ConfigRequestTimeout:
		switch v := values.(type) {
		case time.Duration:
			ses.client.Timeout = v
		case int:
			ses.client.Timeout = time.Duration(v * int(time.Second))
		case int64:
			ses.client.Timeout = time.Duration(v * int64(time.Second))
		case float32:
			ses.client.Timeout = time.Duration(v * float32(time.Second))
		case float64:
			ses.client.Timeout = time.Duration(v * float64(time.Second))
		default:
			panic(errors.New("error type " + reflect.TypeOf(v).String()))
		}
	case ConfigDialTimeout:

	case ConfigProxy:
		switch v := values.(type) {
		case string:
			purl, err := (url.Parse(v))
			if err != nil {
				panic(err)
			}
			ses.transport.Proxy = http.ProxyURL(purl)
		case *url.URL:
			ses.transport.Proxy = http.ProxyURL(v)
		}
	case ConfigInsecure:
		ses.transport.TLSClientConfig = &tls.Config{InsecureSkipVerify: !values.(bool)}
	case ConfigTLS:
		ses.transport.TLSClientConfig = values.(*tls.Config)
	case ConfigBasicAuth:
		if ses.auth == nil {
			ses.auth = &BasicAuth{}
		}

		switch v := values.(type) {
		case *BasicAuth:
			ses.auth.User = v.User
			ses.auth.User = v.Password
		case BasicAuth:
			ses.auth.User = v.User
			ses.auth.User = v.Password
		case []string:
			ses.auth.User = v[0]
			ses.auth.User = v[1]
		case nil:
			ses.auth = nil
		}
	default:
		panic(errors.New("unknown typeConfig " + reflect.TypeOf(typeConfig).String()))
	}
	return
}

// Get 请求
func (ses *Session) Get(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "GET"
	wf.SetURL(url)
	return wf
}

// Post 请求
func (ses *Session) Post(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "POST"
	wf.SetURL(url)
	return wf
}

// Put 请求
func (ses *Session) Put(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "PUT"
	wf.SetURL(url)
	return wf
}

// Patch 请求
func (ses *Session) Patch(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "PATCH"
	wf.SetURL(url)
	return wf
}

// Delete 请求
func (ses *Session) Delete(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "DELETE"
	wf.SetURL(url)
	return wf
}

// Head 请求
func (ses *Session) Head(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "HEAD"
	wf.SetURL(url)
	return wf
}

// Options 请求
func (ses *Session) Options(url string) *Workflow {
	wf := NewWorkflow(ses)
	wf.Method = "OPTIONS"
	wf.SetURL(url)
	return wf
}