[tor-bugs] #11366 [Orbot]: Hidden service cannot be created

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#11366: Hidden service cannot be created
----------------------------+-----------------------
 Reporter:  drazvan         |          Owner:  n8fr8
     Type:  defect          |         Status:  new
 Priority:  normal          |      Milestone:
Component:  Orbot           |        Version:
 Keywords:  hidden service  |  Actual Points:
Parent ID:                  |         Points:
----------------------------+-----------------------
 Hidden service creation and activation no longer works in the latest
 Orbot. Tested all the way up to 13.0.6 (nightly).

 I've started a small HTTP server (KWS for Android) on port 8888 and set
 port 8888 in the "Hidden Services Ports" field and checked "Hidden Service
 Hosting". The hostname and private_key files are created (checked from
 root shell) but the service is not accessible.

 Manually adding the service to app_bin/torrc and re-running tor makes the
 hidden service appear. I added this:

 HiddenServiceDir /data/data/org.torproject.android/app_data/
 HiddenServicePort 8888 127.0.0.1:8888

 If I understand the Orbot sources correctly, the line it tries to add when
 enabling a service is

 HiddenServicePort 8888 '''0.0.0.0''':8888 (not sure if that makes a
 difference)

 The ".Onion Hostname" field is _never_ populated, once again if I
 understand the sources correctly the getHiddenServiceHostname() private
 method in TorService is never called (in the latest version from Git).

 Finally, when using the REQUEST_HS_PORT intent to trigger this externally,
 I get the dialog asking me to confirm the activation of the hidden
 service, then Orbot hangs altogether and must be force-killed.

 I suspect this is due to the fact that the enableHiddenServicePort method
 in the Orbot class
 (https://gitweb.torproject.org/orbot.git/blob/HEAD:/src/org/torproject/android/Orbot.java#l357)
 is called from
 https://gitweb.torproject.org/orbot.git/blob/HEAD:/src/org/torproject/android/Orbot.java#l444
 upon pressing the Accept button, on the UI thread, so the UI hangs while
 waiting for the hidden service to be created (and due to the defect above,
 it never returns).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11366>
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