checkExpiry method
Future<void>
checkExpiry(
- RequestOptions opts,
- RequestInterceptorHandler handler
)
Implementation
Future<void> checkExpiry(
RequestOptions opts, RequestInterceptorHandler handler) async {
//get current token expiry
// print("CHECK EXP");
var dio2 = Dio();
final prefs = await SharedPreferences.getInstance();
var expCurrent = DateTime.parse(prefs.getString(prefixExpiryToken)!);
var timenow = DateTime.now();
// print(expCurrent);
// print(timenow);
var gep = timenow.difference(expCurrent).inSeconds;
// print(gep);
if (gep > expiryThreshold) {
// print("Must Reload");
var rt = prefs.getString(prefixRefreshToken);
var ua = prefs.getString("ua");
final info = await PackageInfo.fromPlatform();
// print(rt);
try {
Map<String, Object?>? keySet;
var headers = {
"User-Agent": ua,
"x-app-id": info.packageName,
"accept": defaultType,
Headers.contentTypeHeader: defaultType
};
var dataRefresh = {"refreshToken": rt};
//check enc
if (commonEncMode) {
keySet = await payloadEnc.generateKeyPair();
var encryptData = await payloadEnc.encryptData(dataRefresh, keySet);
var newPayload = {"cipherText": encryptData};
dataRefresh = newPayload;
final base64Str = buildEncKeyHeader(keySet);
headers = {...headers, encryptionKeyLabel: base64Str};
}
var response = await dio2.request(
appUrl + "/services/auth",
data: dataRefresh,
options: Options(method: "PATCH", headers: headers),
);
// print(response.requestOptions);
// print(response);
//check enc
if (commonEncMode) {
var ct = chiperType.fromJson(response.data);
// print(ct.cipherText);
var decrypt = await payloadEnc.decryptData(ct.cipherText!, keySet!);
var jsondecode = json.decode(decrypt);
response.data = jsondecode;
}
var res = RefreshTokenResponse.fromJson(response.data);
//set new token & expiry
prefs.setString(
prefixRefreshToken, res.data!.attributes!.refreshToken!);
prefs.setString(prefixAccessToken, res.data!.attributes!.accessToken!);
prefs.setString(prefixExpiryToken, res.data!.attributes!.expiry!);
var atNew = res.data!.attributes!.accessToken!;
opts.headers.update("Authorization", (value) => "Bearer $atNew");
handler.next(opts);
} on DioError catch (e) {
var title = e.response!.data["errors"]![0];
// print("ERROR--CHECK--EXPIRY");
if (title["code"] == "IVREF") {
var evtCb = this.opts!.options?.eventCallback;
evtCb({"name": "invalid_refresh_token"});
}
// print(e.message);
handler.reject(e);
} catch (e) {
// print(e);
}
} else {
// print("NO NEED REFRESH");
handler.next(opts);
}
}