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Thread: Wlan home network: how can a Vb6 winsock receive data from android phone

  1. #1

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    Wlan home network: how can a Vb6 winsock receive data from android phone

    Hello,
    I want to use my smartphone to make a voice recognition
    using the android app "de.simmet.thevoice".
    When I speak some words in my cellphone the android app
    sends some data to my PC (Windows10) where I'm running
    e.g. a vb6 winsock.

    I want to know what must the VB6 code be
    to be able to receive data from the smartphone.

    The default URL of the app is:
    http://myserver:8080/directory/script.php

    and the Windows10 PC in my home network has the ip:
    http://192.168.1.2

    Am I right when I use a VB6 winsock?
    Attached Images Attached Images  
    Last edited by vb_elmar; Feb 10th, 2018 at 07:13 AM.

  2. #2
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Quote Originally Posted by vb_elmar View Post
    I want to use my smartphone to make a voice recognition using the android app "de.simmet.thevoice".
    and the Windows10 PC in my home network has the ip: 192.168.1.2

    Am I right when I use a VB6 winsock?
    The little App you are talking about, is apparently sending the "speech-decoded Text" per http-protocol.
    And thus a (socket-based) Server-Implementation should act like a WebServer (adhering to the rules of http).

    If you want to make a simple fast test, you could check in a vbRichClient5-reference into an otherwise empty project -
    and use the code below:
    Code:
    Option Explicit
    
    Private WithEvents WebServer As cWebServer
    
    Private Sub Form_Load()
      Set WebServer = New_c.WebServer
          WebServer.Listen App.Path, "192.168.1.2", 8080
    End Sub
     
    Private Sub WebServer_ProcessRequest(Request As vbRichClient5.cWebRequest)
      'Print out, what's coming in... (over the URL - and also over the "Request-Body" (if there is one)
      Debug.Print Request.URL
      If Request.DataLen Then Debug.Print Cairo.ToBSTR(Request.GetData)
      
      'Send out a simple Text-Response (currently always the same one, in the future depending on the incoming text)
      Request.Response.SetResponseDataString "Hello World"
    End Sub
    The URL you should set-up in your phones little "Speach-recognition-app" would be
    (according to the WebServer.Listen in the Form_Load above): "http://192.168.1.2:8080"

    Olaf
    Last edited by Schmidt; Feb 10th, 2018 at 04:37 PM.

  3. #3
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Hi Olaf, it's really amazing. Extremely grateful.

  4. #4

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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Unfortunately I cannot access the webserver from my cellphone.

    When entering the following URL in Firefox (the Firefox browser
    installed on my Win10 PC where the vb webserver is running)
    http://192.168.1.2:23000/
    the Firefox Browser shows the "Hello World" message.

    But when entering the same URL in the Chrome browser on my cell phone,
    i wait 60 seconds and then I get this message:
    Name:  webserver_Screenshot.png
Views: 54
Size:  56.6 KB

    I turned off the firewall on my Win10 PC, but it doesn't work.

    -Must I set the vbRichClient5 webserver to "Public" to access
    the webserver with my mobile phone?

    Unfortunately the website www.vbrichclient.com
    has no forum to answer my question.

  5. #5
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Maybe the Chrome browser needs https instead of http.

  6. #6
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    If your PC is behind a NAT router and your phone is on the public Internet then even setting the firewall rule to permit "public" network access isn't enough. You must map the port from the Internet side of the router to your PC on the private side as discussed in some depth here just recently.

    Just hire a programmer and be done with it.

  7. #7
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Quote Originally Posted by dreammanor View Post
    Maybe the Chrome browser needs https instead of http.
    No, it doesn't. I just tested Chrome on my phone to a program using my Gossamer web server UserControl and it works just fine using HTTP. See the CodeBank, there is no need for a gigantic 3rd party undocumented closed source library for this sort of thing.

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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Quote Originally Posted by dilettante View Post
    No, it doesn't. I just tested Chrome on my phone to a program using my Gossamer web server UserControl and it works just fine using HTTP. See the CodeBank, there is no need for a gigantic 3rd party undocumented closed source library for this sort of thing.
    I learned your Gossamer web server a few weeks ago and it's great. But in our country, 99% of VB6 software using Winsock will be intercepted by security software.

    For the same reason, I also can't use RC5.RPC

  9. #9
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Yes abuse leads to restrictions unfortunately. Lots of things about VB6 raise flags as dangerous because so many script kiddies have started to use it as a malware platform.

  10. #10

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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    -I got it!

    I had to setup my Windows10 network configuration, as the following snapshot shows:
    Name:  win10_networkconfiguration.jpg
Views: 52
Size:  40.2 KB

    -Now I get the "Hello World" message when entering the URL...

    http://192.168.1.2:23000/

    on my cell phone in the Chrome browser (or any other browser).
    Last edited by vb_elmar; Feb 13th, 2018 at 02:45 PM.

  11. #11
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Congratulations. Maybe I should learn one more language to understand the text in the picture above.

    My PC still can't communicate with my mobile phone because I don't know how to map the port from the Internet side of the router to my PC, as dilettante said in post #6.

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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Quote Originally Posted by dreammanor View Post
    Congratulations. Maybe I should learn one more language to understand the text in the picture above.

    My PC still can't communicate with my mobile phone because I don't know how to map the port from the Internet side of the router to my PC, as dilettante said in post #6.
    Normally (if we talk about "SmartPhone-usage at home") there is no need for that because:

    - your Phone will prefer the private WLAN-connection of your router (over the Phone-Providers Radio Inet-Connection - which costs more, at least here in germany),
    .. after getting a dynamic IP in your Home-Lan-IPrange from your Routers DHCP-server, automatically login in to that "Private HotSpot", when you reach home

    - and the Routers are smart enough, to - well, "route" - any requests which are made to another machine in your Home-Lans IP-Range *directly* to the other machine in question (no NAT coming into play there)
    .. (in that case, your Desktop-Machine, when it is listening on one of the IPs of your Home-Range (typically Class C, beginning with 192.168. or sometimes Class A or B -beginning with 10. and 172 respectively)

    So it really boils down in the end, to the Desktop-PCs Network and Firewall-Settings (and as the OP found out - in case of MS's newer OSes, which "Zone" you declare a given Network-connection to be in).

    Olaf

  13. #13

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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    >>Congratulations. Maybe I should learn one more language to understand the text in the picture above.

    Hello Schmidt, I think this is the english version:
    Name:  win10_networkconfiguration_us.jpg
Views: 45
Size:  26.5 KB

  14. #14
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Yeah - that's what I meant with "Zone-Membership of a given Network-Conn" (the term on an english-OS in the above screen seems to be: "network-location").

    Though I have no experience with "MS-HomeGroup-stuff" (for which MS seems to have "extra-special-rules")...
    But when you choose,
    that a given Network-Conn is a "Public Spot" (as e.g when you connect your Notebook to.the WLan-HotSpot in your preferred "side-walk cafè"),
    then "stronger discoverability-rules" will apply (your Notebook is then "more isolated" from other machines on that public HotSpot).

    So, when you are at home, you should give the Network-Conn to your HomeLan-Router a hint, "that you are" (on a private Lan).

    BTW, does the speech-recognition work (I've no time currently to test the little "delegator-App you mentioned on my Phone).

    Olaf

  15. #15
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    Re: Wlan home network: how can a Vb6 winsock receive data from android phone

    Quote Originally Posted by Schmidt View Post
    Normally (if we talk about "SmartPhone-usage at home") there is no need for that because:

    - your Phone will prefer the private WLAN-connection of your router (over the Phone-Providers Radio Inet-Connection - which costs more, at least here in germany),
    .. after getting a dynamic IP in your Home-Lan-IPrange from your Routers DHCP-server, automatically login in to that "Private HotSpot", when you reach home

    - and the Routers are smart enough, to - well, "route" - any requests which are made to another machine in your Home-Lans IP-Range *directly* to the other machine in question (no NAT coming into play there)
    .. (in that case, your Desktop-Machine, when it is listening on one of the IPs of your Home-Range (typically Class C, beginning with 192.168. or sometimes Class A or B -beginning with 10. and 172 respectively)

    So it really boils down in the end, to the Desktop-PCs Network and Firewall-Settings (and as the OP found out - in case of MS's newer OSes, which "Zone" you declare a given Network-connection to be in).

    Olaf
    Yes, now I can access my PC and get Json data from mobile browser on my home private LAN (home WiFi). Thank you so much, Olaf.
    Last edited by dreammanor; Feb 14th, 2018 at 11:17 AM.

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