summaryrefslogtreecommitdiff
path: root/vendor/gopkg.in/square/go-jose.v2/encoding.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/gopkg.in/square/go-jose.v2/encoding.go')
-rw-r--r--vendor/gopkg.in/square/go-jose.v2/encoding.go178
1 files changed, 0 insertions, 178 deletions
diff --git a/vendor/gopkg.in/square/go-jose.v2/encoding.go b/vendor/gopkg.in/square/go-jose.v2/encoding.go
deleted file mode 100644
index 9f37ef465..000000000
--- a/vendor/gopkg.in/square/go-jose.v2/encoding.go
+++ /dev/null
@@ -1,178 +0,0 @@
-/*-
- * Copyright 2014 Square Inc.
- *
- * 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 jose
-
-import (
- "bytes"
- "compress/flate"
- "encoding/base64"
- "encoding/binary"
- "encoding/json"
- "io"
- "math/big"
- "regexp"
-)
-
-var stripWhitespaceRegex = regexp.MustCompile("\\s")
-
-// Helper function to serialize known-good objects.
-// Precondition: value is not a nil pointer.
-func mustSerializeJSON(value interface{}) []byte {
- out, err := json.Marshal(value)
- if err != nil {
- panic(err)
- }
- // We never want to serialize the top-level value "null," since it's not a
- // valid JOSE message. But if a caller passes in a nil pointer to this method,
- // MarshalJSON will happily serialize it as the top-level value "null". If
- // that value is then embedded in another operation, for instance by being
- // base64-encoded and fed as input to a signing algorithm
- // (https://github.com/square/go-jose/issues/22), the result will be
- // incorrect. Because this method is intended for known-good objects, and a nil
- // pointer is not a known-good object, we are free to panic in this case.
- // Note: It's not possible to directly check whether the data pointed at by an
- // interface is a nil pointer, so we do this hacky workaround.
- // https://groups.google.com/forum/#!topic/golang-nuts/wnH302gBa4I
- if string(out) == "null" {
- panic("Tried to serialize a nil pointer.")
- }
- return out
-}
-
-// Strip all newlines and whitespace
-func stripWhitespace(data string) string {
- return stripWhitespaceRegex.ReplaceAllString(data, "")
-}
-
-// Perform compression based on algorithm
-func compress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) {
- switch algorithm {
- case DEFLATE:
- return deflate(input)
- default:
- return nil, ErrUnsupportedAlgorithm
- }
-}
-
-// Perform decompression based on algorithm
-func decompress(algorithm CompressionAlgorithm, input []byte) ([]byte, error) {
- switch algorithm {
- case DEFLATE:
- return inflate(input)
- default:
- return nil, ErrUnsupportedAlgorithm
- }
-}
-
-// Compress with DEFLATE
-func deflate(input []byte) ([]byte, error) {
- output := new(bytes.Buffer)
-
- // Writing to byte buffer, err is always nil
- writer, _ := flate.NewWriter(output, 1)
- _, _ = io.Copy(writer, bytes.NewBuffer(input))
-
- err := writer.Close()
- return output.Bytes(), err
-}
-
-// Decompress with DEFLATE
-func inflate(input []byte) ([]byte, error) {
- output := new(bytes.Buffer)
- reader := flate.NewReader(bytes.NewBuffer(input))
-
- _, err := io.Copy(output, reader)
- if err != nil {
- return nil, err
- }
-
- err = reader.Close()
- return output.Bytes(), err
-}
-
-// byteBuffer represents a slice of bytes that can be serialized to url-safe base64.
-type byteBuffer struct {
- data []byte
-}
-
-func newBuffer(data []byte) *byteBuffer {
- if data == nil {
- return nil
- }
- return &byteBuffer{
- data: data,
- }
-}
-
-func newFixedSizeBuffer(data []byte, length int) *byteBuffer {
- if len(data) > length {
- panic("square/go-jose: invalid call to newFixedSizeBuffer (len(data) > length)")
- }
- pad := make([]byte, length-len(data))
- return newBuffer(append(pad, data...))
-}
-
-func newBufferFromInt(num uint64) *byteBuffer {
- data := make([]byte, 8)
- binary.BigEndian.PutUint64(data, num)
- return newBuffer(bytes.TrimLeft(data, "\x00"))
-}
-
-func (b *byteBuffer) MarshalJSON() ([]byte, error) {
- return json.Marshal(b.base64())
-}
-
-func (b *byteBuffer) UnmarshalJSON(data []byte) error {
- var encoded string
- err := json.Unmarshal(data, &encoded)
- if err != nil {
- return err
- }
-
- if encoded == "" {
- return nil
- }
-
- decoded, err := base64.RawURLEncoding.DecodeString(encoded)
- if err != nil {
- return err
- }
-
- *b = *newBuffer(decoded)
-
- return nil
-}
-
-func (b *byteBuffer) base64() string {
- return base64.RawURLEncoding.EncodeToString(b.data)
-}
-
-func (b *byteBuffer) bytes() []byte {
- // Handling nil here allows us to transparently handle nil slices when serializing.
- if b == nil {
- return nil
- }
- return b.data
-}
-
-func (b byteBuffer) bigInt() *big.Int {
- return new(big.Int).SetBytes(b.data)
-}
-
-func (b byteBuffer) toInt() int {
- return int(b.bigInt().Int64())
-}