1 files changed, 0 insertions, 97 deletions
diff --git a/vendor/github.com/go-macaron/csrf/xsrf.go b/vendor/github.com/go-macaron/csrf/xsrf.go
deleted file mode 100644
index 81ed5d0f..00000000
--- a/vendor/github.com/go-macaron/csrf/xsrf.go
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright 2012 Google Inc. All Rights Reserved.
-// Copyright 2014 The Macaron Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package csrf
-
-import (
-	"bytes"
-	"crypto/hmac"
-	"crypto/sha1"
-	"crypto/subtle"
-	"encoding/base64"
-	"fmt"
-	"strconv"
-	"strings"
-	"time"
-)
-
-// The duration that XSRF tokens are valid.
-// It is exported so clients may set cookie timeouts that match generated tokens.
-const TIMEOUT = 24 * time.Hour
-
-// clean sanitizes a string for inclusion in a token by replacing all ":"s.
-func clean(s string) string {
-	return strings.Replace(s, ":", "_", -1)
-}
-
-// GenerateToken returns a URL-safe secure XSRF token that expires in 24 hours.
-//
-// key is a secret key for your application.
-// userID is a unique identifier for the user.
-// actionID is the action the user is taking (e.g. POSTing to a particular path).
-func GenerateToken(key, userID, actionID string) string {
-	return generateTokenAtTime(key, userID, actionID, time.Now())
-}
-
-// generateTokenAtTime is like Generate, but returns a token that expires 24 hours from now.
-func generateTokenAtTime(key, userID, actionID string, now time.Time) string {
-	h := hmac.New(sha1.New, []byte(key))
-	fmt.Fprintf(h, "%s:%s:%d", clean(userID), clean(actionID), now.UnixNano())
-	tok := fmt.Sprintf("%s:%d", h.Sum(nil), now.UnixNano())
-	return base64.URLEncoding.EncodeToString([]byte(tok))
-}
-
-// Valid returns true if token is a valid, unexpired token returned by Generate.
-func ValidToken(token, key, userID, actionID string) bool {
-	return validTokenAtTime(token, key, userID, actionID, time.Now())
-}
-
-// validTokenAtTime is like Valid, but it uses now to check if the token is expired.
-func validTokenAtTime(token, key, userID, actionID string, now time.Time) bool {
-	// Decode the token.
-	data, err := base64.URLEncoding.DecodeString(token)
-	if err != nil {
-		return false
-	}
-
-	// Extract the issue time of the token.
-	sep := bytes.LastIndex(data, []byte{':'})
-	if sep < 0 {
-		return false
-	}
-	nanos, err := strconv.ParseInt(string(data[sep+1:]), 10, 64)
-	if err != nil {
-		return false
-	}
-	issueTime := time.Unix(0, nanos)
-
-	// Check that the token is not expired.
-	if now.Sub(issueTime) >= TIMEOUT {
-		return false
-	}
-
-	// Check that the token is not from the future.
-	// Allow 1 minute grace period in case the token is being verified on a
-	// machine whose clock is behind the machine that issued the token.
-	if issueTime.After(now.Add(1 * time.Minute)) {
-		return false
-	}
-
-	expected := generateTokenAtTime(key, userID, actionID, issueTime)
-
-	// Check that the token matches the expected value.
-	// Use constant time comparison to avoid timing attacks.
-	return subtle.ConstantTimeCompare([]byte(token), []byte(expected)) == 1
-}