Viacheslav Eremin | How to parse JSON by Newtonsoft.Json (on example of FireFox Tab Session Manager and decrypted JwtSecurityToken)

(NET) NET (2017)

How to parse JSON by Newtonsoft.Json (on example of FireFox Tab Session Manager and decrypted JwtSecurityToken)

I have some example of JSON parse in my site - Parse Yotube response by Newtonsoft.Json, and in this page want to add practice about JSON parsing. Below I show a some simple template to use Newtonsoft.Json, first part is the reading FireFox Tab Session Manager.

In top level this JSON you can see as this:

And code each internal part of this JSON (one information about one opened page will be look as this):

Finally code of reading this JSON, find information about opened page and save it to DB you can see below.

 411:  #Region "Import from TabSession manager"

 412:

 413:      Private Sub ReadJsonFromFFTabSessionManager_Click(sender As Object, e As EventArgs) Handles ReadJsonFromFFTabSessionManager.Click

 414:          'https://github.com/sienori/Tab-Session-Manager/blob/master/src/

 415:          Dim X As New OpenFileDialog

 416:          X.Title = "Browse Json TabSessionManager backup file"

 417:          X.Filter = "JSON file (*.json)|*.json|All files (*.*)|*.*"

 418:          X.FilterIndex = 1

 419:          X.CheckFileExists = True

 420:          X.Multiselect = False

 421:          If DialogResult.OK = X.ShowDialog Then

 422:              Dim CurMax As Integer = MainForm.db1.Sites.Max(Function(Z) Z.Pos)

 423:              Dim JsonString As String = My.Computer.FileSystem.ReadAllText(X.FileName)

 424:              Dim Jarr As JArray = JArray.Parse(JsonString)

 425:              For Each One As JObject In Jarr

 426:                  Dim name As String = One("name")

 427:                  Dim windowsInfo As JObject = One("windowsInfo")

 428:                  Dim windowsNumber As Integer = One("windowsNumber")

 429:                  If windowsNumber = 1 Then

 430:                      Dim Key As Integer = windowsInfo.Values.Select(Function(Z) Z("id"))(0).Value(Of Integer)

 431:                      Dim tabsNumber As Integer = One("tabsNumber")

 432:                      Dim windows As JObject = One("windows")

 433:                      Dim TabList As JObject = windows(Key.ToString)

 434:                      For Each OneTabAsProp As JProperty In TabList.Children

 435:                          Dim OneTabAsObj As JObject = CType(OneTabAsProp.First, JObject)

 436:                          Dim TabUrl As String = OneTabAsObj("url").Value(Of String)

 437:                          Dim TabTitle As String = OneTabAsObj("title").Value(Of String)

 438:                          db1.Sites.Add((New Site With {

 439:                                       .URL = TabUrl,

 440:                                      .Login = "",

 441:                                      .Pass = "",

 442:                                      .Comment = TabTitle,

 443:                                      .Type = RowType.Count + 1,

 444:                                      .Pos = CurMax + 1}))

 445:                          CurMax += 1

 446:                      Next

 447:                      db1.SaveChanges()

 448:                      Dim TypeDictionary As String = My.Computer.FileSystem.ReadAllText(LoginForm.UrlTypeFileName, System.Text.Encoding.UTF8)

 449:                      TypeDictionary &= name & " (" & Now.ToShortDateString & ")" & vbCrLf

 450:                      My.Computer.FileSystem.WriteAllText(LoginForm.UrlTypeFileName, TypeDictionary.ToString, False)

 451:                      TypeComboBox_Refresh()

 452:                      AutoClosingMessageBox.Show("New type has adding" & vbCrLf & name)

 453:                  Else

 454:                      MsgBox("Import working only with one saved FF window, not for many")

 455:                  End If

 456:              Next

 457:          End If

 458:      End Sub

 459:

 460:  #End Region

Next example is decrypt JwtSecurityToken, format it and show as good formated text.

In code below I decrypt this token by System.IdentityModel.Tokens.Jwt, format it and show in the form.

 155:      Function FormatLoginToken() As String

 156:          Dim X As New JwtSecurityTokenHandler

 157:          Dim AccessToken = X.ReadJwtToken(CurrentLoginToken.access_token)

 158:          Dim RefreshToken = X.ReadJwtToken(CurrentLoginToken.refresh_token)

 159:          Dim AccessTokenFormated = JsonConvert.SerializeObject(AccessToken.Payload, Formatting.Indented)

 160:          Dim RefreshTokenFormated = JsonConvert.SerializeObject(RefreshToken.Payload, Formatting.Indented)

 161:          Return "Expired:" & CurrentLoginToken.expire_token.ToString & vbCrLf & AccessTokenFormated & vbCrLf & RefreshTokenFormated

 162:      End Function

This is two links, how to implement the same authentication on the server side.

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