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sinch_gateway.go
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sinch_gateway.go
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package otp
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"net/http"
"strings"
"time"
"github.com/coretrix/hitrix/pkg/helper"
)
const SMSOTPProviderSinch = "Sinch"
type Sinch struct {
AppID string
AppSecret string
VerificationURL string
}
func NewSinchSMSOTPProvider(appID, appSecret, verificationURL string) *Sinch {
return &Sinch{
AppID: appID,
AppSecret: appSecret,
VerificationURL: verificationURL,
}
}
func (s *Sinch) GetName() string {
return SMSOTPProviderSinch
}
func (s *Sinch) GetCode() string {
return ""
}
func (s *Sinch) GetPhonePrefixes() []string {
return nil
}
func (s *Sinch) SendOTP(phone *Phone, _ string) (string, string, error) {
body := &struct {
Identity *struct {
Type string `json:"type"`
Endpoint string `json:"endpoint"`
} `json:"identity"`
Method string `json:"method"`
}{
Identity: &struct {
Type string `json:"type"`
Endpoint string `json:"endpoint"`
}{
Type: "number",
Endpoint: phone.Number,
},
Method: "sms",
}
request, err := s.toJSON(body)
if err != nil {
return request, "", err
}
headers := s.getSinchHeaders()
responseBody, _, code, err := helper.Call(
context.Background(),
"POST",
s.VerificationURL,
headers,
time.Duration(5)*time.Second,
body,
nil)
if err != nil {
return request, string(responseBody), err
}
if code != http.StatusOK {
return request, string(responseBody), fmt.Errorf("expected status code 200, but got %v", code)
}
return request, string(responseBody), nil
}
func (s *Sinch) Call(_ *Phone, _ string, _ string) (string, string, error) {
// not implemented
return "", "", nil
}
func (s *Sinch) VerifyOTP(phone *Phone, code, _ string) (string, string, bool, bool, error) {
body := &struct {
Method string `json:"method"`
SMS *struct {
Code string `json:"code"`
} `json:"sms"`
}{
Method: "sms",
SMS: &struct {
Code string `json:"code"`
}{Code: code},
}
request, err := s.toJSON(body)
if err != nil {
return request, "", false, false, err
}
headers := s.getSinchHeaders()
responseBody, _, respCode, err := helper.Call(
context.Background(),
"PUT",
s.VerificationURL+"/number/"+phone.Number,
headers,
time.Duration(5)*time.Second,
body,
nil)
if err != nil {
return request, string(responseBody), false, false, err
}
if respCode != http.StatusOK && strings.Contains(string(responseBody), "Invalid identity or code") {
return request, string(responseBody), false, false, nil
} else if respCode != http.StatusOK {
return request, string(responseBody), false, false, fmt.Errorf("expected status code 200, but got %v", respCode)
}
respStruct := &struct {
ID string `json:"id"`
Method string `json:"method"`
Status string `json:"status"`
Reason string `json:"reason"`
Reference string `json:"reference"`
Source string `json:"source"`
}{}
if err := json.Unmarshal(responseBody, respStruct); err != nil {
return request, string(responseBody), false, false, err
}
return request, string(responseBody), true, respStruct.Status == "SUCCESSFUL", nil
}
func (s *Sinch) getSinchHeaders() map[string]string {
base64Credentials := base64.StdEncoding.EncodeToString([]byte(s.AppID + ":" + s.AppSecret))
return map[string]string{
"Content-Type": "application/json",
"Authorization": "Basic " + base64Credentials,
}
}
func (s *Sinch) toJSON(data interface{}) (string, error) {
dataJSON, err := json.Marshal(data)
if err != nil {
return "", err
}
return string(dataJSON), nil
}