diff options
Diffstat (limited to 'vendor/github.com/aws/aws-sdk-go/private/protocol/jsonvalue.go')
-rw-r--r-- | vendor/github.com/aws/aws-sdk-go/private/protocol/jsonvalue.go | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/vendor/github.com/aws/aws-sdk-go/private/protocol/jsonvalue.go b/vendor/github.com/aws/aws-sdk-go/private/protocol/jsonvalue.go new file mode 100644 index 000000000..776d11018 --- /dev/null +++ b/vendor/github.com/aws/aws-sdk-go/private/protocol/jsonvalue.go @@ -0,0 +1,76 @@ +package protocol + +import ( + "encoding/base64" + "encoding/json" + "fmt" + "strconv" + + "github.com/aws/aws-sdk-go/aws" +) + +// EscapeMode is the mode that should be use for escaping a value +type EscapeMode uint + +// The modes for escaping a value before it is marshaled, and unmarshaled. +const ( + NoEscape EscapeMode = iota + Base64Escape + QuotedEscape +) + +// EncodeJSONValue marshals the value into a JSON string, and optionally base64 +// encodes the string before returning it. +// +// Will panic if the escape mode is unknown. +func EncodeJSONValue(v aws.JSONValue, escape EscapeMode) (string, error) { + b, err := json.Marshal(v) + if err != nil { + return "", err + } + + switch escape { + case NoEscape: + return string(b), nil + case Base64Escape: + return base64.StdEncoding.EncodeToString(b), nil + case QuotedEscape: + return strconv.Quote(string(b)), nil + } + + panic(fmt.Sprintf("EncodeJSONValue called with unknown EscapeMode, %v", escape)) +} + +// DecodeJSONValue will attempt to decode the string input as a JSONValue. +// Optionally decoding base64 the value first before JSON unmarshaling. +// +// Will panic if the escape mode is unknown. +func DecodeJSONValue(v string, escape EscapeMode) (aws.JSONValue, error) { + var b []byte + var err error + + switch escape { + case NoEscape: + b = []byte(v) + case Base64Escape: + b, err = base64.StdEncoding.DecodeString(v) + case QuotedEscape: + var u string + u, err = strconv.Unquote(v) + b = []byte(u) + default: + panic(fmt.Sprintf("DecodeJSONValue called with unknown EscapeMode, %v", escape)) + } + + if err != nil { + return nil, err + } + + m := aws.JSONValue{} + err = json.Unmarshal(b, &m) + if err != nil { + return nil, err + } + + return m, nil +} |