MediaExtract from JWPUB

[livrasand]

First of all: Sorry for the translation, I use Google Translate.

Hello @darioragusa we have had conversations together before, now I am trying to extract the images and videos from a JWPUB file, I have already managed to get the images, now I need to extract the videos from the database. My friend @TjeuKayim recommended that we could get something here together. I hope you join the conversation!

I've already had a little chat with @MrCyjaneK here, you can take a look if you like.

This is what I have of code so far, it's very simple but it works:

Imports System
Imports System.Net
Imports System.IO.Compression
Imports System.IO
Imports System.IO.Compression.ZipFile
Imports System.Data.SQLite
Imports System.Collections
Imports System.Collections.Generic
Imports System.Data
Imports System.Windows

Public Class Form1
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Try
            Label1.Text = "Creando el directorio de descarga temporal"
            My.Computer.FileSystem.CreateDirectory("C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D")
        Catch ex As Exception
            MsgBox("No se pudo crear el directorio" & vbCrLf & ex.Message)
        End Try

        Dim client As New WebClient()
        If My.Computer.Network.IsAvailable Then
            Try
                Label1.Text = "Descargando el archivo JWPUB..."
                My.Computer.Network.DownloadFile("https://download-a.akamaihd.net/files/media_periodical/c8/mwb_S_202207.jwpub", "C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\mwb_S_202207.jwpub")
            Catch ex As Exception
                MsgBox("No se pudo descargar el archivo JWPUB" & vbCrLf & ex.Message)
            End Try
        Else
            Label1.Text = "Conectate a Internet"
            MsgBox("No estás conectado a Internet")
        End If

        Try
            Label1.Text = "Espere 3 segundos..."
            System.Threading.Thread.Sleep(3000)
        Catch ex As Exception
            MsgBox("No se pudo esperar los 3 segundos" & vbCrLf & ex.Message)
        End Try

        Try
            Label1.Text = "Cambiando el nombre al archivo JWPUB por ZIP"
            My.Computer.FileSystem.RenameFile("C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\mwb_S_202207.jwpub", "mwb_S_202207.zip")
        Catch ex As Exception
            MsgBox("No se pudo cambiar el nombre del archivo JWPUB" & vbCrLf & ex.Message)
        End Try

        Try
            Label1.Text = "Descomprimiendo archivo ZIP..."
            ZipFile.ExtractToDirectory("C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\mwb_S_202207.zip", "C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\")
        Catch ex As Exception
            MsgBox("No se pudo descomprimir el archivo ZIP" & vbCrLf & ex.Message)
        End Try

        Try
            Label1.Text = "Cambiando el nombre a la carpeta CONTENTS a ZIP"
            My.Computer.FileSystem.RenameFile("C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\contents", "contents.zip")
        Catch ex As Exception
            MsgBox("No se pudo cambiar el nombre de la carpeta CONTENTS" & vbCrLf & ex.Message)
        End Try

        Try
            Label1.Text = "Descomprimiendo la carpeta CONTENTS.ZIP..."
            ZipFile.ExtractToDirectory("C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\contents.zip", "C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\")
        Catch ex As Exception
            MsgBox("No se pudo descomprimir la carpeta CONTENTS.ZIP" & vbCrLf & ex.Message)
        End Try

        Dim SQLiteConn As New SQLiteConnection
        Try
            SQLiteConn.ConnectionString = "Data Source=C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\mwb_S_202207.db; Integrated Security=true"
            SQLiteConn.Open()
        Catch ex As Exception
            MsgBox("No se pudo conectar a la Base de Datos" & ex.Message)
        End Try

        Dim SQLitecnStr As String = "Data Source=C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\mwb_S_202207.db; Integrated Security=true"
        Dim SQLitecmd As New SQLiteCommand
        Dim SQLiteReader As SQLiteDataReader
        Try
            SQLiteConn.ConnectionString = SQLitecnStr
            SQLiteConn.Open()

            SQLitecmd.Connection = SQLiteConn
            SQLitecmd.CommandText = "SELECT * from Multimedia LIMIT 1;"
            SQLiteReader = SQLitecmd.ExecuteReader()

            MsgBox(SQLiteReader("MimeType").ToString)
        Catch ex As Exception
            MsgBox("No se pudo conectar a la tabla Mutimedia" & ex.Message)
        End Try
    End Sub
End Class

This part is the one that doesn't work:

Dim SQLitecnStr As String = "Data Source=C:\GoAttendant\Attendant Zoom\AppData\Local\Packages\417474656E64616E74205A6F6F6D\mwb_S_202207.db; Integrated Security=true"
       Dim SQLitecmd As New SQLiteCommand
       Dim SQLiteReader As SQLiteDataReader
       Try
           SQLiteConn.ConnectionString = SQLitecnStr
           SQLiteConn.Open()

           SQLitecmd.Connection = SQLiteConn
           SQLitecmd.CommandText = "SELECT * from Multimedia LIMIT 1;"
           SQLiteReader = SQLitecmd.ExecuteReader()

           MsgBox(SQLiteReader("MimeType").ToString)
       Catch ex As Exception
           MsgBox("No se pudo conectar a la tabla Mutimedia" & ex.Message)
       End Try

Here I show you a bit of the Designer. I even have their repository here, but it's not fully uploaded yet, I'm missing some files, maybe by the time you read this they'll all be up.

At first I based my project on this, however it has not worked for me since the error function. I want to implement this project to my Attendant Zoom application, an application to share multimedia in video conference meetings, in the Kingdom Hall or even in Assembly Halls.

[darioragusa]

Hi, I took a look at the other issue, to extract video information from the db you can use a query like this:
SELECT KeySymbol, Track, MepsLanguageIndex, IssueTagNumber FROM Multimedia WHERE DataType = 2; (maybe adding some other filter). What error do you get?