Fix/auth binding

core/sys/sign.go

@@ -12,3 +12,5 @@ type SignFunc func(hash string, signatureScheme string, keys []KeyPair) (string,
 type VerifyFunc func(signature string, msg string) (bool, error)
 
 type VerifyWithFunc func(pk, signature string, msg string) (bool, error)
+
+type AuthorizeFunc func(msg string) (string, error)

core/sys/vars.go

@@ -21,4 +21,6 @@ var (
 
 	// Verify verify method. it should be initialized on different platform.
 	VerifyWith VerifyWithFunc
+
+	Authorize AuthorizeFunc
 )

mobilesdk/sdk/sdk.go

@@ -7,11 +7,13 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
-	"github.com/pkg/errors"
 	"math"
 	"strconv"
 	"strings"
 
+	"github.com/0chain/gosdk/core/sys"
+	"github.com/pkg/errors"
+
 	"github.com/0chain/gosdk/core/util"
 	"github.com/0chain/gosdk/core/version"
 	"github.com/0chain/gosdk/zboxcore/client"
@@ -25,6 +27,10 @@ import (
 
 var nonce = int64(0)
 
+type Autorizer interface {
+	Auth(msg string) (string, error)
+}
+
 // ChainConfig - blockchain config
 type ChainConfig struct {
 	ChainID           string   `json:"chain_id,omitempty"`
@@ -414,3 +420,13 @@ func decodeTicket(ticket string) (string, string, uint64, error) {
 	s, _ := strconv.ParseFloat(string(fmt.Sprintf("%v", lock)), 64)
 	return string(recipientPublicKey), string(markerStr), zcncore.ConvertTokenToSAS(s), nil
 }
+
+// Client can extend interface and fass implementation to this register like this
+// public class Autorizer extends Pkg.Autorizer {
+// public void Auth() {
+// // do something here
+// }
+// }
+func RegisterAuthorizer(auth Autorizer) {
+	sys.Authorize = auth.Auth
+}

zcncore/transactionauth_base.go

@@ -2,13 +2,10 @@ package zcncore
 
 import (
 	"encoding/json"
-	"fmt"
-	"net/http"
-	"strconv"
 
 	"github.com/0chain/errors"
+	"github.com/0chain/gosdk/core/sys"
 	"github.com/0chain/gosdk/core/transaction"
-	"github.com/0chain/gosdk/core/util"
 	"github.com/0chain/gosdk/core/zcncrypto"
 )
 
@@ -38,23 +35,21 @@ func (ta *TransactionWithAuth) getAuthorize() (*transaction.Transaction, error)
 		return nil, errors.Wrap(err, "signing error.")
 	}
 
-	req, err := util.NewHTTPPostRequest(_config.authUrl+"/transaction", ta.t.txn)
+	jsonByte, err := json.Marshal(ta.t.txn)
 	if err != nil {
-		return nil, errors.Wrap(err, "new post request failed for auth")
+		return nil, err
 	}
-	res, err := req.Post()
+
+	if sys.Authorize == nil {
+		return nil, errors.New("not_initialized", "no authorize func is set, define it in native code and set in sys")
+	}
+	authorize, err := sys.Authorize(string(jsonByte))
 	if err != nil {
-		return nil, errNetwork
+		return nil, err
 	}
 
-	if res.StatusCode != http.StatusOK {
-		if res.StatusCode == http.StatusUnauthorized {
-			return nil, errUserRejected
-		}
-		return nil, errors.New(strconv.Itoa(res.StatusCode), fmt.Sprintf("auth error: %v. %v", res.Status, res.Body))
-	}
 	var txnResp transaction.Transaction
-	err = json.Unmarshal([]byte(res.Body), &txnResp)
+	err = json.Unmarshal([]byte(authorize), &txnResp)
 	if err != nil {
 		return nil, errors.Wrap(err, "invalid json on auth response.")
 	}