func (c *Controller) EncryptChatMessage() (string, error) {
var err error
c.r.ParseForm()
receiver := c.r.FormValue("receiver")
message := c.r.FormValue("message")
if len(message) > 5120 {
return "", errors.New("incorrect message")
}
publicKey, err := c.Single("SELECT public_key_0 FROM users WHERE user_id = ?", receiver).Bytes()
if err != nil {
return "", utils.ErrInfo(err)
}
if len(publicKey) > 0 {
pub, err := utils.BinToRsaPubKey(publicKey)
if err != nil {
return "", utils.ErrInfo(err)
}
enc_, err := rsa.EncryptPKCS1v15(rand.Reader, pub, []byte(message))
if err != nil {
return "", utils.ErrInfo(err)
}
return utils.JsonAnswer(string(utils.BinToHex(enc_)), "success").String(), nil
} else {
return utils.JsonAnswer("Incorrect user_id", "error").String(), nil
}
}
func (c *Controller) AlertFromAdmin() (string, error) {
if c.SessRestricted != 0 {
return "", utils.ErrInfo(errors.New("Permission denied"))
}
alertMessage := ""
alert, err := utils.GetHttpTextAnswer("http://dcoin.club/alert.json")
if len(alert) > 0 {
alertData := new(alertType)
err = json.Unmarshal([]byte(alert), &alertData)
if err != nil {
log.Error("%v", utils.ErrInfo(err))
}
messageJson, err := json.Marshal(alertData.Message)
if err != nil {
log.Error("%v", utils.ErrInfo(err))
}
pub, err := utils.BinToRsaPubKey(utils.HexToBin(consts.ALERT_KEY))
if err != nil {
log.Error("%v", utils.ErrInfo(err))
}
err = rsa.VerifyPKCS1v15(pub, crypto.SHA1, utils.HashSha1(string(messageJson)), []byte(utils.HexToBin(alertData.Signature)))
if err != nil {
log.Error("%v", utils.ErrInfo(err))
}
if version.Compare(alertData.Message["version"], consts.VERSION, ">") {
alertMessage = alertData.Message[utils.Int64ToStr(c.LangInt)]
return utils.JsonAnswer(alertMessage, "success").String(), nil
}
}
return ``, nil
}
func (c *Controller) EncryptComment() (string, error) {
var err error
c.r.ParseForm()
txType := c.r.FormValue("type")
var toId int64
var toIds []int64
toIds_ := c.r.FormValue("to_ids")
if len(toIds_) == 0 {
toId = utils.StrToInt64(c.r.FormValue("to_id"))
} else {
var toIdsMap map[string]string
err = json.Unmarshal([]byte(toIds_), &toIdsMap)
if err != nil {
return "", utils.ErrInfo(err)
}
for _, uid := range toIdsMap {
if utils.StrToInt64(uid) > 0 {
toIds = append(toIds, utils.StrToInt64(uid))
}
}
}
comment := c.r.FormValue("comment")
if len(comment) > 1024 {
return "", errors.New("incorrect comment")
}
var toUserId int64
if txType == "project" {
toUserId, err = c.Single("SELECT user_id FROM cf_projects WHERE id = ?", toId).Int64()
if err != nil {
return "", utils.ErrInfo(err)
}
} else {
toUserId = toId
}
if len(toIds) == 0 {
toIds = []int64{toUserId}
}
log.Debug("toId:", toId)
log.Debug("toIds:", toIds)
log.Debug("toUserId:", toUserId)
enc := make(map[string]string)
for i := 0; i < len(toIds); i++ {
if toIds[i] == 0 {
enc[utils.IntToStr(i)] = "0"
continue
}
// если получатель майнер, тогда шифруем нодовским ключем
minersData, err := c.OneRow("SELECT miner_id, node_public_key FROM miners_data WHERE user_id = ?", toIds[i]).String()
if err != nil {
return "", utils.ErrInfo(err)
}
var publicKey string
if utils.StrToInt(minersData["miner_id"]) > 0 && txType != "cash_request" && txType != "bug_reporting" && txType != "project" && txType != "money_back" && txType != "restoringAccess" {
publicKey = minersData["node_public_key"]
} else {
publicKey, err = c.Single("SELECT public_key_0 FROM users WHERE user_id = ?", toIds[i]).String()
if err != nil {
return "", utils.ErrInfo(err)
}
}
pub, err := utils.BinToRsaPubKey([]byte(publicKey))
if err != nil {
return "", utils.ErrInfo(err)
}
enc_, err := rsa.EncryptPKCS1v15(rand.Reader, pub, []byte(comment))
if err != nil {
return "", utils.ErrInfo(err)
}
enc[utils.IntToStr(i)] = string(utils.BinToHex(enc_))
}
if len(enc) < 5 && len(enc) > 0 {
for i := len(enc); i < 5; i++ {
enc[utils.IntToStr(i)] = "0"
}
}
log.Debug("enc:", enc)
if txType != "arbitration_arbitrators" {
return string(enc["0"]), nil
} else {
result, err := json.Marshal(enc)
if err != nil {
return "", utils.ErrInfo(err)
}
return string(result), nil
}
}