[tor-bugs] #28329 [Applications/Tor Browser]: Design TBA+Orbot configuration UI/UX

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#28329: Design TBA+Orbot configuration UI/UX
-------------------------------------------------+-------------------------
 Reporter:  sysrqb                               |          Owner:  tbb-
                                                 |  team
     Type:  enhancement                          |         Status:
                                                 |  needs_revision
 Priority:  Very High                            |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-mobile, ux-team, TBA-a3,         |  Actual Points:
  tbb-8.5-must-alpha, TorBrowserTeam201904       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor8
-------------------------------------------------+-------------------------

Comment (by sysrqb):

 Suprisingly, #29757 may be needed for supporting API level 16. More recent
 versions of Android do not throw this SecurityException (they simply log
 an error and continue), but Orbot fails during its startup process as a
 result of this exception being thrown, so the app won't bootstrap.

 {{{
 E/Orbot   ( 1935): error onBind
 E/Orbot   ( 1935): java.lang.SecurityException: Permission Denial: opening
 provider
 org.torproject.torbrowser.ui.hiddenservices.providers.HSContentProvider
 from ProcessRecord{a76ef718 1935:org.torproject.torbrowser_alpha/u0a45}
 (pid=1935, uid=10045) that is not exported from uid 10044
 E/Orbot   ( 1935):      at
 android.os.Parcel.readException(Parcel.java:1425)
 E/Orbot   ( 1935):      at
 android.os.Parcel.readException(Parcel.java:1379)
 E/Orbot   ( 1935):      at
 android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:2354)
 E/Orbot   ( 1935):      at
 android.app.ActivityThread.acquireProvider(ActivityThread.java:4219)
 E/Orbot   ( 1935):      at
 android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:1703)
 E/Orbot   ( 1935):      at
 android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1099)
 E/Orbot   ( 1935):      at
 android.content.ContentResolver.query(ContentResolver.java:354)
 E/Orbot   ( 1935):      at
 android.content.ContentResolver.query(ContentResolver.java:313)
 E/Orbot   ( 1935):      at
 org.torproject.android.service.TorService.processSettingsImpl(TorService.java:1659)
 E/Orbot   ( 1935):      at
 org.torproject.android.service.TorService.updateTorConfigFile(TorService.java:703)
 E/Orbot   ( 1935):      at
 org.torproject.android.service.TorService.torUpgradeAndConfig(TorService.java:625)
 E/Orbot   ( 1935):      at
 org.torproject.android.service.TorService.access$800(TorService.java:94)
 E/Orbot   ( 1935):      at
 org.torproject.android.service.TorService$2.run(TorService.java:571)
 E/Orbot   ( 1935):      at java.lang.Thread.run(Thread.java:856)
 W/ActivityManager( 1409): Permission denied: checkComponentPermission()
 owningUid=10044
 W/ActivityManager( 1409): Permission denied: checkComponentPermission()
 owningUid=10044
 W/ActivityManager( 1409): Permission Denial: opening provider
 org.torproject.torbrowser.ui.hiddenservices.providers.HSContentProvider
 from ProcessRecord{a76ef718 1935:org.torproject.torbrowser_alpha/u0a45}
 (pid=1935, uid=10045) that is not exported from uid 10044
 }}}

 For example, API level 19 simply logs:
 {{{
 E/ActivityThread( 3446): Failed to find provider info for
 org.torproject.torbrowser.ui.hiddenservices.providers
 E/ActivityThread( 3446): Failed to find provider info for
 org.torproject.torbrowser.ui.hiddenservices.providers.cookie
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28329#comment:84>
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