Convert captcha, cache, csrf as middlewares

1 files changed, 0 insertions, 201 deletions

diff --git a/modules/captcha/captcha.go b/modules/captcha/captcha.go
deleted file mode 100644
index e43e09dc..00000000
--- a/modules/captcha/captcha.go
+++ /dev/null
@@ -1,201 +0,0 @@
-// 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 captcha a middleware that provides captcha service for Macaron.
-package captcha
-
-import (
-	"fmt"
-	"html/template"
-	"net/http"
-	"path"
-	"strings"
-
-	"github.com/Unknwon/macaron"
-
-	"github.com/gogits/cache"
-
-	"github.com/gogits/gogs/modules/base"
-	"github.com/gogits/gogs/modules/log"
-)
-
-var (
-	defaultChars = []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
-)
-
-const (
-	// default captcha attributes
-	challengeNums    = 6
-	expiration       = 600
-	fieldIdName      = "captcha_id"
-	fieldCaptchaName = "captcha"
-	cachePrefix      = "captcha_"
-	defaultURLPrefix = "/captcha/"
-)
-
-// Captcha struct
-type Captcha struct {
-	store cache.Cache
-
-	// url prefix for captcha image
-	URLPrefix string
-
-	// specify captcha id input field name
-	FieldIdName string
-	// specify captcha result input field name
-	FieldCaptchaName string
-
-	// captcha image width and height
-	StdWidth  int
-	StdHeight int
-
-	// captcha chars nums
-	ChallengeNums int
-
-	// captcha expiration seconds
-	Expiration int64
-
-	// cache key prefix
-	CachePrefix string
-}
-
-// generate key string
-func (c *Captcha) key(id string) string {
-	return c.CachePrefix + id
-}
-
-// generate rand chars with default chars
-func (c *Captcha) genRandChars() []byte {
-	return base.RandomCreateBytes(c.ChallengeNums, defaultChars...)
-}
-
-// beego filter handler for serve captcha image
-func (c *Captcha) Handler(ctx *macaron.Context) {
-	var chars []byte
-
-	id := path.Base(ctx.Req.RequestURI)
-	if i := strings.Index(id, "."); i != -1 {
-		id = id[:i]
-	}
-
-	key := c.key(id)
-
-	if v, ok := c.store.Get(key).([]byte); ok {
-		chars = v
-	} else {
-		ctx.Status(404)
-		ctx.Write([]byte("captcha not found"))
-		return
-	}
-
-	// reload captcha
-	if len(ctx.Query("reload")) > 0 {
-		chars = c.genRandChars()
-		if err := c.store.Put(key, chars, c.Expiration); err != nil {
-			ctx.Status(500)
-			ctx.Write([]byte("captcha reload error"))
-			log.Error(4, "Reload Create Captcha Error: %v", err)
-			return
-		}
-	}
-
-	img := NewImage(chars, c.StdWidth, c.StdHeight)
-	if _, err := img.WriteTo(ctx.RW()); err != nil {
-		log.Error(4, "Write Captcha Image Error: %v", err)
-	}
-}
-
-// tempalte func for output html
-func (c *Captcha) CreateCaptchaHtml() template.HTML {
-	value, err := c.CreateCaptcha()
-	if err != nil {
-		log.Error(4, "Create Captcha Error: %v", err)
-		return ""
-	}
-
-	// create html
-	return template.HTML(fmt.Sprintf(`<input type="hidden" name="%s" value="%s">`+
-		`<a class="captcha" href="javascript:">`+
-		`<img onclick="this.src=('%s%s.png?reload='+(new Date()).getTime())" class="captcha-img" src="%s%s.png">`+
-		`</a>`, c.FieldIdName, value, c.URLPrefix, value, c.URLPrefix, value))
-}
-
-// create a new captcha id
-func (c *Captcha) CreateCaptcha() (string, error) {
-	// generate captcha id
-	id := string(base.RandomCreateBytes(15))
-
-	// get the captcha chars
-	chars := c.genRandChars()
-
-	// save to store
-	if err := c.store.Put(c.key(id), chars, c.Expiration); err != nil {
-		return "", err
-	}
-
-	return id, nil
-}
-
-// verify from a request
-func (c *Captcha) VerifyReq(req *http.Request) bool {
-	req.ParseForm()
-	return c.Verify(req.Form.Get(c.FieldIdName), req.Form.Get(c.FieldCaptchaName))
-}
-
-// direct verify id and challenge string
-func (c *Captcha) Verify(id string, challenge string) (success bool) {
-	if len(challenge) == 0 || len(id) == 0 {
-		return
-	}
-
-	var chars []byte
-
-	key := c.key(id)
-
-	if v, ok := c.store.Get(key).([]byte); ok && len(v) == len(challenge) {
-		chars = v
-	} else {
-		return
-	}
-
-	defer func() {
-		// finally remove it
-		c.store.Delete(key)
-	}()
-
-	// verify challenge
-	for i, c := range chars {
-		if c != challenge[i]-48 {
-			return
-		}
-	}
-
-	return true
-}
-
-// create a new captcha.Captcha
-func NewCaptcha(urlPrefix string, store cache.Cache) *Captcha {
-	cpt := &Captcha{}
-	cpt.store = store
-	cpt.FieldIdName = fieldIdName
-	cpt.FieldCaptchaName = fieldCaptchaName
-	cpt.ChallengeNums = challengeNums
-	cpt.Expiration = expiration
-	cpt.CachePrefix = cachePrefix
-	cpt.StdWidth = stdWidth
-	cpt.StdHeight = stdHeight
-
-	if len(urlPrefix) == 0 {
-		urlPrefix = defaultURLPrefix
-	}
-
-	if urlPrefix[len(urlPrefix)-1] != '/' {
-		urlPrefix += "/"
-	}
-
-	cpt.URLPrefix = urlPrefix
-
-	base.TemplateFuncs["CreateCaptcha"] = cpt.CreateCaptchaHtml
-	return cpt
-}