Android Question Okhttp

josejad

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• May 5, 2020

• #2

You must use OKHttpUtils2

 

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Chris Guanzon

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• May 5, 2020

• #3

if use OKHttpUtils2 , i'm getting this error in Logs

B4X:

HttpUtils2Service is declared twice. You should either remove the library reference or the code module.

Because i have HttpUtils2Service (Service Module) in my project to Change hc.Initialize in HttpUtils2Service to hc.InitializeAcceptAll

 

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Erel

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• May 5, 2020

• #4

Chris Guanzon said:

Because i have HttpUtils2Service (Service Module) in my project to Change hc.Initialize in HttpUtils2Service to hc.InitializeAcceptAll

Click to expand...

1. Remove the modules.

2. See the second search result: https://www.b4x.com/android/forum/pages/results/?query=OkHttpUtils2+InitializeAcceptAll

 

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Chris Guanzon

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• May 5, 2020

• #5

I removed the httpjob and httputils modules and added okhttputils in my library then added HU2_ACCEPTALL in build configurations (conditional symbols), still getting the same error.

B4X:

javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException:
SSL handshake aborted: ssl=0x7a11ad08: Failure in SSL library, usually a protocol error
error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:741 0x74686718:0x00000000)

This happens in some android devices.

 

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Erel

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• May 5, 2020

• #6

Check the logs and make sure that it is indeed set to accept all. There should be a message about this.

Accept all doesn't solve all SSL issues. It only solves the case where the certificate is not recognized.

It is possible for example that the server uses TLS v1.2 which is not supported by Android 4.4- devices.

 

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Chris Guanzon

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• May 5, 2020

• #7

Yes, the server uses TLS v1.2 . Is there any other way for android 4.4 devices to connect? I also have a device running android 7.0 and i am getting the same error.

 

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Erel

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• May 5, 2020

• #8

Chris Guanzon said:

I also have a device running android 7.0

Click to expand...

This shouldn't happen.

You can update the security provider: https://www.b4x.com/android/forum/threads/ssl-websocket-client.88472/page-2#post-560044

 

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Chris Guanzon

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• May 5, 2020

• #9

i used this example from LucasMS https://www.b4x.com/android/forum/threads/ssl-websocket-client.88472/post-560192

This is the error "error installing provider: 9". Any other tools aside from okhttp to connect to the server?

 

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OliverA

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• May 5, 2020

• #10

For Android 4.4, no. This is not a limitation of B4A, nor the library used, but of Android, since it handles the security aspect of the connection. With Android 7 you should have no issues. If you are in control of the server, and support for older Androids is critical, then downgrade the security (by using older TLS version) used by the server. For security reason, I would try to avoid having to use older Android devices.

 

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