diff options
Diffstat (limited to 'kube2msb/src/vendor/golang.org/x/oauth2/jws/jws.go')
| -rw-r--r-- | kube2msb/src/vendor/golang.org/x/oauth2/jws/jws.go | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/kube2msb/src/vendor/golang.org/x/oauth2/jws/jws.go b/kube2msb/src/vendor/golang.org/x/oauth2/jws/jws.go deleted file mode 100644 index 396b3fa..0000000 --- a/kube2msb/src/vendor/golang.org/x/oauth2/jws/jws.go +++ /dev/null @@ -1,160 +0,0 @@ -// Copyright 2014 The oauth2 Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package jws provides encoding and decoding utilities for -// signed JWS messages. -package jws - -import ( - "bytes" - "crypto" - "crypto/rand" - "crypto/rsa" - "crypto/sha256" - "encoding/base64" - "encoding/json" - "errors" - "fmt" - "strings" - "time" -) - -// ClaimSet contains information about the JWT signature including the -// permissions being requested (scopes), the target of the token, the issuer, -// the time the token was issued, and the lifetime of the token. -type ClaimSet struct { - Iss string `json:"iss"` // email address of the client_id of the application making the access token request - Scope string `json:"scope,omitempty"` // space-delimited list of the permissions the application requests - Aud string `json:"aud"` // descriptor of the intended target of the assertion (Optional). - Exp int64 `json:"exp"` // the expiration time of the assertion - Iat int64 `json:"iat"` // the time the assertion was issued. - Typ string `json:"typ,omitempty"` // token type (Optional). - - // Email for which the application is requesting delegated access (Optional). - Sub string `json:"sub,omitempty"` - - // The old name of Sub. Client keeps setting Prn to be - // complaint with legacy OAuth 2.0 providers. (Optional) - Prn string `json:"prn,omitempty"` - - // See http://tools.ietf.org/html/draft-jones-json-web-token-10#section-4.3 - // This array is marshalled using custom code (see (c *ClaimSet) encode()). - PrivateClaims map[string]interface{} `json:"-"` - - exp time.Time - iat time.Time -} - -func (c *ClaimSet) encode() (string, error) { - if c.exp.IsZero() || c.iat.IsZero() { - // Reverting time back for machines whose time is not perfectly in sync. - // If client machine's time is in the future according - // to Google servers, an access token will not be issued. - now := time.Now().Add(-10 * time.Second) - c.iat = now - c.exp = now.Add(time.Hour) - } - - c.Exp = c.exp.Unix() - c.Iat = c.iat.Unix() - - b, err := json.Marshal(c) - if err != nil { - return "", err - } - - if len(c.PrivateClaims) == 0 { - return base64Encode(b), nil - } - - // Marshal private claim set and then append it to b. - prv, err := json.Marshal(c.PrivateClaims) - if err != nil { - return "", fmt.Errorf("jws: invalid map of private claims %v", c.PrivateClaims) - } - - // Concatenate public and private claim JSON objects. - if !bytes.HasSuffix(b, []byte{'}'}) { - return "", fmt.Errorf("jws: invalid JSON %s", b) - } - if !bytes.HasPrefix(prv, []byte{'{'}) { - return "", fmt.Errorf("jws: invalid JSON %s", prv) - } - b[len(b)-1] = ',' // Replace closing curly brace with a comma. - b = append(b, prv[1:]...) // Append private claims. - return base64Encode(b), nil -} - -// Header represents the header for the signed JWS payloads. -type Header struct { - // The algorithm used for signature. - Algorithm string `json:"alg"` - - // Represents the token type. - Typ string `json:"typ"` -} - -func (h *Header) encode() (string, error) { - b, err := json.Marshal(h) - if err != nil { - return "", err - } - return base64Encode(b), nil -} - -// Decode decodes a claim set from a JWS payload. -func Decode(payload string) (*ClaimSet, error) { - // decode returned id token to get expiry - s := strings.Split(payload, ".") - if len(s) < 2 { - // TODO(jbd): Provide more context about the error. - return nil, errors.New("jws: invalid token received") - } - decoded, err := base64Decode(s[1]) - if err != nil { - return nil, err - } - c := &ClaimSet{} - err = json.NewDecoder(bytes.NewBuffer(decoded)).Decode(c) - return c, err -} - -// Encode encodes a signed JWS with provided header and claim set. -func Encode(header *Header, c *ClaimSet, signature *rsa.PrivateKey) (string, error) { - head, err := header.encode() - if err != nil { - return "", err - } - cs, err := c.encode() - if err != nil { - return "", err - } - ss := fmt.Sprintf("%s.%s", head, cs) - h := sha256.New() - h.Write([]byte(ss)) - b, err := rsa.SignPKCS1v15(rand.Reader, signature, crypto.SHA256, h.Sum(nil)) - if err != nil { - return "", err - } - sig := base64Encode(b) - return fmt.Sprintf("%s.%s", ss, sig), nil -} - -// base64Encode returns and Base64url encoded version of the input string with any -// trailing "=" stripped. -func base64Encode(b []byte) string { - return strings.TrimRight(base64.URLEncoding.EncodeToString(b), "=") -} - -// base64Decode decodes the Base64url encoded string -func base64Decode(s string) ([]byte, error) { - // add back missing padding - switch len(s) % 4 { - case 2: - s += "==" - case 3: - s += "=" - } - return base64.URLEncoding.DecodeString(s) -} |