368 lines
8.4 KiB
Go
368 lines
8.4 KiB
Go
// 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 middleware
|
|
|
|
import (
|
|
"crypto/hmac"
|
|
"crypto/sha1"
|
|
"encoding/base64"
|
|
"fmt"
|
|
"html/template"
|
|
"io"
|
|
"net/http"
|
|
"net/url"
|
|
"path/filepath"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/go-martini/martini"
|
|
|
|
"github.com/gogits/cache"
|
|
"github.com/gogits/git"
|
|
"github.com/gogits/session"
|
|
|
|
"github.com/gogits/gogs/models"
|
|
"github.com/gogits/gogs/modules/auth"
|
|
"github.com/gogits/gogs/modules/base"
|
|
"github.com/gogits/gogs/modules/log"
|
|
)
|
|
|
|
// Context represents context of a request.
|
|
type Context struct {
|
|
*Render
|
|
c martini.Context
|
|
p martini.Params
|
|
Req *http.Request
|
|
Res http.ResponseWriter
|
|
Flash *Flash
|
|
Session session.SessionStore
|
|
Cache cache.Cache
|
|
User *models.User
|
|
IsSigned bool
|
|
|
|
csrfToken string
|
|
|
|
Repo struct {
|
|
IsOwner bool
|
|
IsWatching bool
|
|
IsBranch bool
|
|
IsTag bool
|
|
IsCommit bool
|
|
HasAccess bool
|
|
Repository *models.Repository
|
|
Owner *models.User
|
|
Commit *git.Commit
|
|
GitRepo *git.Repository
|
|
BranchName string
|
|
CommitId string
|
|
RepoLink string
|
|
CloneLink struct {
|
|
SSH string
|
|
HTTPS string
|
|
Git string
|
|
}
|
|
Mirror *models.Mirror
|
|
}
|
|
}
|
|
|
|
// Query querys form parameter.
|
|
func (ctx *Context) Query(name string) string {
|
|
ctx.Req.ParseForm()
|
|
return ctx.Req.Form.Get(name)
|
|
}
|
|
|
|
// func (ctx *Context) Param(name string) string {
|
|
// return ctx.p[name]
|
|
// }
|
|
|
|
// HasError returns true if error occurs in form validation.
|
|
func (ctx *Context) HasError() bool {
|
|
hasErr, ok := ctx.Data["HasError"]
|
|
if !ok {
|
|
return false
|
|
}
|
|
ctx.Flash.ErrorMsg = ctx.Data["ErrorMsg"].(string)
|
|
ctx.Data["Flash"] = ctx.Flash
|
|
return hasErr.(bool)
|
|
}
|
|
|
|
// HTML calls render.HTML underlying but reduce one argument.
|
|
func (ctx *Context) HTML(status int, name string, htmlOpt ...HTMLOptions) {
|
|
ctx.Render.HTML(status, name, ctx.Data, htmlOpt...)
|
|
}
|
|
|
|
// RenderWithErr used for page has form validation but need to prompt error to users.
|
|
func (ctx *Context) RenderWithErr(msg, tpl string, form auth.Form) {
|
|
if form != nil {
|
|
auth.AssignForm(form, ctx.Data)
|
|
}
|
|
ctx.Flash.ErrorMsg = msg
|
|
ctx.Data["Flash"] = ctx.Flash
|
|
ctx.HTML(200, tpl)
|
|
}
|
|
|
|
// Handle handles and logs error by given status.
|
|
func (ctx *Context) Handle(status int, title string, err error) {
|
|
if err != nil {
|
|
log.Error("%s: %v", title, err)
|
|
if martini.Dev != martini.Prod {
|
|
ctx.Data["ErrorMsg"] = err
|
|
}
|
|
}
|
|
|
|
switch status {
|
|
case 404:
|
|
ctx.Data["Title"] = "Page Not Found"
|
|
case 500:
|
|
ctx.Data["Title"] = "Internal Server Error"
|
|
}
|
|
ctx.HTML(status, fmt.Sprintf("status/%d", status))
|
|
}
|
|
|
|
func (ctx *Context) Debug(msg string, args ...interface{}) {
|
|
log.Debug(msg, args...)
|
|
}
|
|
|
|
func (ctx *Context) GetCookie(name string) string {
|
|
cookie, err := ctx.Req.Cookie(name)
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
return cookie.Value
|
|
}
|
|
|
|
func (ctx *Context) SetCookie(name string, value string, others ...interface{}) {
|
|
cookie := http.Cookie{}
|
|
cookie.Name = name
|
|
cookie.Value = value
|
|
|
|
if len(others) > 0 {
|
|
switch v := others[0].(type) {
|
|
case int:
|
|
cookie.MaxAge = v
|
|
case int64:
|
|
cookie.MaxAge = int(v)
|
|
case int32:
|
|
cookie.MaxAge = int(v)
|
|
}
|
|
}
|
|
|
|
// default "/"
|
|
if len(others) > 1 {
|
|
if v, ok := others[1].(string); ok && len(v) > 0 {
|
|
cookie.Path = v
|
|
}
|
|
} else {
|
|
cookie.Path = "/"
|
|
}
|
|
|
|
// default empty
|
|
if len(others) > 2 {
|
|
if v, ok := others[2].(string); ok && len(v) > 0 {
|
|
cookie.Domain = v
|
|
}
|
|
}
|
|
|
|
// default empty
|
|
if len(others) > 3 {
|
|
switch v := others[3].(type) {
|
|
case bool:
|
|
cookie.Secure = v
|
|
default:
|
|
if others[3] != nil {
|
|
cookie.Secure = true
|
|
}
|
|
}
|
|
}
|
|
|
|
// default false. for session cookie default true
|
|
if len(others) > 4 {
|
|
if v, ok := others[4].(bool); ok && v {
|
|
cookie.HttpOnly = true
|
|
}
|
|
}
|
|
|
|
ctx.Res.Header().Add("Set-Cookie", cookie.String())
|
|
}
|
|
|
|
// Get secure cookie from request by a given key.
|
|
func (ctx *Context) GetSecureCookie(Secret, key string) (string, bool) {
|
|
val := ctx.GetCookie(key)
|
|
if val == "" {
|
|
return "", false
|
|
}
|
|
|
|
parts := strings.SplitN(val, "|", 3)
|
|
|
|
if len(parts) != 3 {
|
|
return "", false
|
|
}
|
|
|
|
vs := parts[0]
|
|
timestamp := parts[1]
|
|
sig := parts[2]
|
|
|
|
h := hmac.New(sha1.New, []byte(Secret))
|
|
fmt.Fprintf(h, "%s%s", vs, timestamp)
|
|
|
|
if fmt.Sprintf("%02x", h.Sum(nil)) != sig {
|
|
return "", false
|
|
}
|
|
res, _ := base64.URLEncoding.DecodeString(vs)
|
|
return string(res), true
|
|
}
|
|
|
|
// Set Secure cookie for response.
|
|
func (ctx *Context) SetSecureCookie(Secret, name, value string, others ...interface{}) {
|
|
vs := base64.URLEncoding.EncodeToString([]byte(value))
|
|
timestamp := strconv.FormatInt(time.Now().UnixNano(), 10)
|
|
h := hmac.New(sha1.New, []byte(Secret))
|
|
fmt.Fprintf(h, "%s%s", vs, timestamp)
|
|
sig := fmt.Sprintf("%02x", h.Sum(nil))
|
|
cookie := strings.Join([]string{vs, timestamp, sig}, "|")
|
|
ctx.SetCookie(name, cookie, others...)
|
|
}
|
|
|
|
func (ctx *Context) CsrfToken() string {
|
|
if len(ctx.csrfToken) > 0 {
|
|
return ctx.csrfToken
|
|
}
|
|
|
|
token := ctx.GetCookie("_csrf")
|
|
if len(token) == 0 {
|
|
token = base.GetRandomString(30)
|
|
ctx.SetCookie("_csrf", token)
|
|
}
|
|
ctx.csrfToken = token
|
|
return token
|
|
}
|
|
|
|
func (ctx *Context) CsrfTokenValid() bool {
|
|
token := ctx.Query("_csrf")
|
|
if token == "" {
|
|
token = ctx.Req.Header.Get("X-Csrf-Token")
|
|
}
|
|
if token == "" {
|
|
return false
|
|
} else if ctx.csrfToken != token {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (ctx *Context) ServeFile(file string, names ...string) {
|
|
var name string
|
|
if len(names) > 0 {
|
|
name = names[0]
|
|
} else {
|
|
name = filepath.Base(file)
|
|
}
|
|
ctx.Res.Header().Set("Content-Description", "File Transfer")
|
|
ctx.Res.Header().Set("Content-Type", "application/octet-stream")
|
|
ctx.Res.Header().Set("Content-Disposition", "attachment; filename="+name)
|
|
ctx.Res.Header().Set("Content-Transfer-Encoding", "binary")
|
|
ctx.Res.Header().Set("Expires", "0")
|
|
ctx.Res.Header().Set("Cache-Control", "must-revalidate")
|
|
ctx.Res.Header().Set("Pragma", "public")
|
|
http.ServeFile(ctx.Res, ctx.Req, file)
|
|
}
|
|
|
|
func (ctx *Context) ServeContent(name string, r io.ReadSeeker, params ...interface{}) {
|
|
modtime := time.Now()
|
|
for _, p := range params {
|
|
switch v := p.(type) {
|
|
case time.Time:
|
|
modtime = v
|
|
}
|
|
}
|
|
ctx.Res.Header().Set("Content-Description", "File Transfer")
|
|
ctx.Res.Header().Set("Content-Type", "application/octet-stream")
|
|
ctx.Res.Header().Set("Content-Disposition", "attachment; filename="+name)
|
|
ctx.Res.Header().Set("Content-Transfer-Encoding", "binary")
|
|
ctx.Res.Header().Set("Expires", "0")
|
|
ctx.Res.Header().Set("Cache-Control", "must-revalidate")
|
|
ctx.Res.Header().Set("Pragma", "public")
|
|
http.ServeContent(ctx.Res, ctx.Req, name, modtime, r)
|
|
}
|
|
|
|
type Flash struct {
|
|
url.Values
|
|
ErrorMsg, SuccessMsg string
|
|
}
|
|
|
|
func (f *Flash) Error(msg string) {
|
|
f.Set("error", msg)
|
|
f.ErrorMsg = msg
|
|
}
|
|
|
|
func (f *Flash) Success(msg string) {
|
|
f.Set("success", msg)
|
|
f.SuccessMsg = msg
|
|
}
|
|
|
|
// InitContext initializes a classic context for a request.
|
|
func InitContext() martini.Handler {
|
|
return func(res http.ResponseWriter, r *http.Request, c martini.Context, rd *Render) {
|
|
|
|
ctx := &Context{
|
|
c: c,
|
|
// p: p,
|
|
Req: r,
|
|
Res: res,
|
|
Cache: base.Cache,
|
|
Render: rd,
|
|
}
|
|
|
|
ctx.Data["PageStartTime"] = time.Now()
|
|
|
|
// start session
|
|
ctx.Session = base.SessionManager.SessionStart(res, r)
|
|
|
|
// Get flash.
|
|
values, err := url.ParseQuery(ctx.GetCookie("gogs_flash"))
|
|
if err != nil {
|
|
log.Error("InitContext.ParseQuery(flash): %v", err)
|
|
} else if len(values) > 0 {
|
|
ctx.Flash = &Flash{Values: values}
|
|
ctx.Flash.ErrorMsg = ctx.Flash.Get("error")
|
|
ctx.Flash.SuccessMsg = ctx.Flash.Get("success")
|
|
ctx.Data["Flash"] = ctx.Flash
|
|
ctx.SetCookie("gogs_flash", "", -1)
|
|
}
|
|
ctx.Flash = &Flash{Values: url.Values{}}
|
|
|
|
rw := res.(martini.ResponseWriter)
|
|
rw.Before(func(martini.ResponseWriter) {
|
|
ctx.Session.SessionRelease(res)
|
|
|
|
if flash := ctx.Flash.Encode(); len(flash) > 0 {
|
|
ctx.SetCookie("gogs_flash", ctx.Flash.Encode(), 0)
|
|
}
|
|
})
|
|
|
|
// Get user from session if logined.
|
|
user := auth.SignedInUser(ctx.Session)
|
|
ctx.User = user
|
|
ctx.IsSigned = user != nil
|
|
|
|
ctx.Data["IsSigned"] = ctx.IsSigned
|
|
|
|
if user != nil {
|
|
ctx.Data["SignedUser"] = user
|
|
ctx.Data["SignedUserId"] = user.Id
|
|
ctx.Data["SignedUserName"] = user.Name
|
|
ctx.Data["IsAdmin"] = ctx.User.IsAdmin
|
|
}
|
|
|
|
// get or create csrf token
|
|
ctx.Data["CsrfToken"] = ctx.CsrfToken()
|
|
ctx.Data["CsrfTokenHtml"] = template.HTML(`<input type="hidden" name="_csrf" value="` + ctx.csrfToken + `">`)
|
|
|
|
c.Map(ctx)
|
|
|
|
c.Next()
|
|
}
|
|
}
|