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options.go
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/
options.go
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// Package pydio contains all objects needed by the Pydio system
/*
* Copyright 2007-2016 Abstrium <contact (at) pydio.com>
* This file is part of Pydio.
*
* Pydio is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com/>.
*/
package pydio
import (
"bytes"
"encoding/json"
"errors"
"io"
"time"
jwt "github.com/dgrijalva/jwt-go"
)
// Options format definition
type Options struct {
PartialTargetBytesize int64 `json:"partial_target_bytesize"`
PartialUpload bool `json:"partial_upload"`
XHRUploader bool `json:"xhr_uploader"`
ForcePost bool `json:"force_post"`
URLEncodedFilename string `json:"urlencoded_filename"`
AppendToURLEncodedPart string `json:"appendto_urlencoded_part"`
Path string `json:"PATH"`
FileOptions `json:"OPTIONS"`
S3Options
}
// FileOptions format definition
type FileOptions struct {
Type string `json:"TYPE"`
Path string `json:"PATH"`
}
// S3Options from server
type S3Options struct {
Type string `json:"TYPE"`
APIKey string `json:"API_KEY"`
APIVersion string `json:"API_VERSION"`
Container string `json:"CONTAINER"`
Proxy string `json:"PROXY"`
VHostNotSupported bool `json:"VHOST_NOT_SUPPORTED"`
Region string `json:"REGION"`
SecretKey string `json:"SECRET_KEY"`
SignatureVersion string `json:"SIGNATURE_VERSION"`
StorageURL string `json:"STORAGE_URL"`
}
// NewOptionsFromJWT creates a user based on a JWT token string
func NewOptionsFromJWT(token string, signatureSecret string) (*Options, error) {
decryptedToken, err := jwt.Parse(token, func(token *jwt.Token) (interface{}, error) {
return []byte(signatureSecret), nil
})
if err != nil {
return nil, err
}
if !decryptedToken.Valid {
return nil, errors.New("Token has been tampered with")
}
if err != nil {
return nil, err
}
var options *Options
claim := decryptedToken.Claims["options"]
claimStr, ok := claim.(string)
if !ok {
return nil, errors.New("Options format is not valid")
}
b, err := jwt.DecodeSegment(claimStr)
// Unmarshalling to an Options Structure
err = json.Unmarshal(b, &options)
return options, nil
}
// JWT representation of the User
func (o *Options) JWT(signatureSecret string, hoursBeforeExpiry int) (string, error) {
payload, err := json.Marshal(o)
if err != nil {
return "", err
}
// Create the token
token := jwt.New(jwt.SigningMethodHS256)
// Set some claims
token.Claims["options"] = payload
token.Claims["exp"] = time.Now().Add(time.Hour * time.Duration(hoursBeforeExpiry)).Unix()
// Sign and get the complete encoded token as a string
tokenString, err := token.SignedString([]byte(signatureSecret))
if err != nil {
return "", err
}
return tokenString, nil
}
// Read the options by encoding to its json representation
func (o *Options) Read(p []byte) (int, error) {
buf := bytes.NewBuffer(p)
enc := json.NewEncoder(buf)
enc.Encode(o)
return buf.Len(), io.EOF
}