1 files changed, 449 insertions, 0 deletions
diff --git a/pkg/httplib/httplib.go b/pkg/httplib/httplib.go
new file mode 100644
index 00000000..deca5db5
--- /dev/null
+++ b/pkg/httplib/httplib.go
@@ -0,0 +1,449 @@
+// Copyright 2013 The Beego Authors. All rights reserved.
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package httplib
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/json"
+	"encoding/xml"
+	"io"
+	"io/ioutil"
+	"log"
+	"mime/multipart"
+	"net"
+	"net/http"
+	"net/http/cookiejar"
+	"net/http/httputil"
+	"net/url"
+	"os"
+	"strings"
+	"sync"
+	"time"
+)
+
+var defaultSetting = Settings{false, "GogsServer", 60 * time.Second, 60 * time.Second, nil, nil, nil, false}
+var defaultCookieJar http.CookieJar
+var settingMutex sync.Mutex
+
+// createDefaultCookie creates a global cookiejar to store cookies.
+func createDefaultCookie() {
+	settingMutex.Lock()
+	defer settingMutex.Unlock()
+	defaultCookieJar, _ = cookiejar.New(nil)
+}
+
+// Overwrite default settings
+func SetDefaultSetting(setting Settings) {
+	settingMutex.Lock()
+	defer settingMutex.Unlock()
+	defaultSetting = setting
+	if defaultSetting.ConnectTimeout == 0 {
+		defaultSetting.ConnectTimeout = 60 * time.Second
+	}
+	if defaultSetting.ReadWriteTimeout == 0 {
+		defaultSetting.ReadWriteTimeout = 60 * time.Second
+	}
+}
+
+// return *Request with specific method
+func newRequest(url, method string) *Request {
+	var resp http.Response
+	req := http.Request{
+		Method:     method,
+		Header:     make(http.Header),
+		Proto:      "HTTP/1.1",
+		ProtoMajor: 1,
+		ProtoMinor: 1,
+	}
+	return &Request{url, &req, map[string]string{}, map[string]string{}, defaultSetting, &resp, nil}
+}
+
+// Get returns *Request with GET method.
+func Get(url string) *Request {
+	return newRequest(url, "GET")
+}
+
+// Post returns *Request with POST method.
+func Post(url string) *Request {
+	return newRequest(url, "POST")
+}
+
+// Put returns *Request with PUT method.
+func Put(url string) *Request {
+	return newRequest(url, "PUT")
+}
+
+// Delete returns *Request DELETE method.
+func Delete(url string) *Request {
+	return newRequest(url, "DELETE")
+}
+
+// Head returns *Request with HEAD method.
+func Head(url string) *Request {
+	return newRequest(url, "HEAD")
+}
+
+type Settings struct {
+	ShowDebug        bool
+	UserAgent        string
+	ConnectTimeout   time.Duration
+	ReadWriteTimeout time.Duration
+	TlsClientConfig  *tls.Config
+	Proxy            func(*http.Request) (*url.URL, error)
+	Transport        http.RoundTripper
+	EnableCookie     bool
+}
+
+// HttpRequest provides more useful methods for requesting one url than http.Request.
+type Request struct {
+	url     string
+	req     *http.Request
+	params  map[string]string
+	files   map[string]string
+	setting Settings
+	resp    *http.Response
+	body    []byte
+}
+
+// Change request settings
+func (r *Request) Setting(setting Settings) *Request {
+	r.setting = setting
+	return r
+}
+
+// SetBasicAuth sets the request's Authorization header to use HTTP Basic Authentication with the provided username and password.
+func (r *Request) SetBasicAuth(username, password string) *Request {
+	r.req.SetBasicAuth(username, password)
+	return r
+}
+
+// SetEnableCookie sets enable/disable cookiejar
+func (r *Request) SetEnableCookie(enable bool) *Request {
+	r.setting.EnableCookie = enable
+	return r
+}
+
+// SetUserAgent sets User-Agent header field
+func (r *Request) SetUserAgent(useragent string) *Request {
+	r.setting.UserAgent = useragent
+	return r
+}
+
+// Debug sets show debug or not when executing request.
+func (r *Request) Debug(isdebug bool) *Request {
+	r.setting.ShowDebug = isdebug
+	return r
+}
+
+// SetTimeout sets connect time out and read-write time out for Request.
+func (r *Request) SetTimeout(connectTimeout, readWriteTimeout time.Duration) *Request {
+	r.setting.ConnectTimeout = connectTimeout
+	r.setting.ReadWriteTimeout = readWriteTimeout
+	return r
+}
+
+// SetTLSClientConfig sets tls connection configurations if visiting https url.
+func (r *Request) SetTLSClientConfig(config *tls.Config) *Request {
+	r.setting.TlsClientConfig = config
+	return r
+}
+
+// Header add header item string in request.
+func (r *Request) Header(key, value string) *Request {
+	r.req.Header.Set(key, value)
+	return r
+}
+
+func (r *Request) Headers() http.Header {
+	return r.req.Header
+}
+
+// Set the protocol version for incoming requests.
+// Client requests always use HTTP/1.1.
+func (r *Request) SetProtocolVersion(vers string) *Request {
+	if len(vers) == 0 {
+		vers = "HTTP/1.1"
+	}
+
+	major, minor, ok := http.ParseHTTPVersion(vers)
+	if ok {
+		r.req.Proto = vers
+		r.req.ProtoMajor = major
+		r.req.ProtoMinor = minor
+	}
+
+	return r
+}
+
+// SetCookie add cookie into request.
+func (r *Request) SetCookie(cookie *http.Cookie) *Request {
+	r.req.Header.Add("Cookie", cookie.String())
+	return r
+}
+
+// Set transport to
+func (r *Request) SetTransport(transport http.RoundTripper) *Request {
+	r.setting.Transport = transport
+	return r
+}
+
+// Set http proxy
+// example:
+//
+//	func(req *http.Request) (*url.URL, error) {
+// 		u, _ := url.ParseRequestURI("http://127.0.0.1:8118")
+// 		return u, nil
+// 	}
+func (r *Request) SetProxy(proxy func(*http.Request) (*url.URL, error)) *Request {
+	r.setting.Proxy = proxy
+	return r
+}
+
+// Param adds query param in to request.
+// params build query string as ?key1=value1&key2=value2...
+func (r *Request) Param(key, value string) *Request {
+	r.params[key] = value
+	return r
+}
+
+func (r *Request) PostFile(formname, filename string) *Request {
+	r.files[formname] = filename
+	return r
+}
+
+// Body adds request raw body.
+// it supports string and []byte.
+func (r *Request) Body(data interface{}) *Request {
+	switch t := data.(type) {
+	case string:
+		bf := bytes.NewBufferString(t)
+		r.req.Body = ioutil.NopCloser(bf)
+		r.req.ContentLength = int64(len(t))
+	case []byte:
+		bf := bytes.NewBuffer(t)
+		r.req.Body = ioutil.NopCloser(bf)
+		r.req.ContentLength = int64(len(t))
+	}
+	return r
+}
+
+func (r *Request) getResponse() (*http.Response, error) {
+	if r.resp.StatusCode != 0 {
+		return r.resp, nil
+	}
+	var paramBody string
+	if len(r.params) > 0 {
+		var buf bytes.Buffer
+		for k, v := range r.params {
+			buf.WriteString(url.QueryEscape(k))
+			buf.WriteByte('=')
+			buf.WriteString(url.QueryEscape(v))
+			buf.WriteByte('&')
+		}
+		paramBody = buf.String()
+		paramBody = paramBody[0 : len(paramBody)-1]
+	}
+
+	if r.req.Method == "GET" && len(paramBody) > 0 {
+		if strings.Index(r.url, "?") != -1 {
+			r.url += "&" + paramBody
+		} else {
+			r.url = r.url + "?" + paramBody
+		}
+	} else if r.req.Method == "POST" && r.req.Body == nil {
+		if len(r.files) > 0 {
+			pr, pw := io.Pipe()
+			bodyWriter := multipart.NewWriter(pw)
+			go func() {
+				for formname, filename := range r.files {
+					fileWriter, err := bodyWriter.CreateFormFile(formname, filename)
+					if err != nil {
+						log.Fatal(err)
+					}
+					fh, err := os.Open(filename)
+					if err != nil {
+						log.Fatal(err)
+					}
+					//iocopy
+					_, err = io.Copy(fileWriter, fh)
+					fh.Close()
+					if err != nil {
+						log.Fatal(err)
+					}
+				}
+				for k, v := range r.params {
+					bodyWriter.WriteField(k, v)
+				}
+				bodyWriter.Close()
+				pw.Close()
+			}()
+			r.Header("Content-Type", bodyWriter.FormDataContentType())
+			r.req.Body = ioutil.NopCloser(pr)
+		} else if len(paramBody) > 0 {
+			r.Header("Content-Type", "application/x-www-form-urlencoded")
+			r.Body(paramBody)
+		}
+	}
+
+	url, err := url.Parse(r.url)
+	if err != nil {
+		return nil, err
+	}
+
+	r.req.URL = url
+
+	trans := r.setting.Transport
+
+	if trans == nil {
+		// create default transport
+		trans = &http.Transport{
+			TLSClientConfig: r.setting.TlsClientConfig,
+			Proxy:           r.setting.Proxy,
+			Dial:            TimeoutDialer(r.setting.ConnectTimeout, r.setting.ReadWriteTimeout),
+		}
+	} else {
+		// if r.transport is *http.Transport then set the settings.
+		if t, ok := trans.(*http.Transport); ok {
+			if t.TLSClientConfig == nil {
+				t.TLSClientConfig = r.setting.TlsClientConfig
+			}
+			if t.Proxy == nil {
+				t.Proxy = r.setting.Proxy
+			}
+			if t.Dial == nil {
+				t.Dial = TimeoutDialer(r.setting.ConnectTimeout, r.setting.ReadWriteTimeout)
+			}
+		}
+	}
+
+	var jar http.CookieJar
+	if r.setting.EnableCookie {
+		if defaultCookieJar == nil {
+			createDefaultCookie()
+		}
+		jar = defaultCookieJar
+	} else {
+		jar = nil
+	}
+
+	client := &http.Client{
+		Transport: trans,
+		Jar:       jar,
+	}
+
+	if len(r.setting.UserAgent) > 0 && len(r.req.Header.Get("User-Agent")) == 0 {
+		r.req.Header.Set("User-Agent", r.setting.UserAgent)
+	}
+
+	if r.setting.ShowDebug {
+		dump, err := httputil.DumpRequest(r.req, true)
+		if err != nil {
+			println(err.Error())
+		}
+		println(string(dump))
+	}
+
+	resp, err := client.Do(r.req)
+	if err != nil {
+		return nil, err
+	}
+	r.resp = resp
+	return resp, nil
+}
+
+// String returns the body string in response.
+// it calls Response inner.
+func (r *Request) String() (string, error) {
+	data, err := r.Bytes()
+	if err != nil {
+		return "", err
+	}
+
+	return string(data), nil
+}
+
+// Bytes returns the body []byte in response.
+// it calls Response inner.
+func (r *Request) Bytes() ([]byte, error) {
+	if r.body != nil {
+		return r.body, nil
+	}
+	resp, err := r.getResponse()
+	if err != nil {
+		return nil, err
+	}
+	if resp.Body == nil {
+		return nil, nil
+	}
+	defer resp.Body.Close()
+	data, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	r.body = data
+	return data, nil
+}
+
+// ToFile saves the body data in response to one file.
+// it calls Response inner.
+func (r *Request) ToFile(filename string) error {
+	f, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	resp, err := r.getResponse()
+	if err != nil {
+		return err
+	}
+	if resp.Body == nil {
+		return nil
+	}
+	defer resp.Body.Close()
+	_, err = io.Copy(f, resp.Body)
+	return err
+}
+
+// ToJson returns the map that marshals from the body bytes as json in response .
+// it calls Response inner.
+func (r *Request) ToJson(v interface{}) error {
+	data, err := r.Bytes()
+	if err != nil {
+		return err
+	}
+	err = json.Unmarshal(data, v)
+	return err
+}
+
+// ToXml returns the map that marshals from the body bytes as xml in response .
+// it calls Response inner.
+func (r *Request) ToXml(v interface{}) error {
+	data, err := r.Bytes()
+	if err != nil {
+		return err
+	}
+	err = xml.Unmarshal(data, v)
+	return err
+}
+
+// Response executes request client gets response mannually.
+func (r *Request) Response() (*http.Response, error) {
+	return r.getResponse()
+}
+
+// TimeoutDialer returns functions of connection dialer with timeout settings for http.Transport Dial field.
+func TimeoutDialer(cTimeout time.Duration, rwTimeout time.Duration) func(net, addr string) (c net.Conn, err error) {
+	return func(netw, addr string) (net.Conn, error) {
+		conn, err := net.DialTimeout(netw, addr, cTimeout)
+		if err != nil {
+			return nil, err
+		}
+		conn.SetDeadline(time.Now().Add(rwTimeout))
+		return conn, nil
+	}
+}