Bug 432142

Summary:	Can't run OpenPGP on Android
Product:	[Frameworks and Libraries] qca	Reporter:	Marek <marek.florianczyk>
Component:	general	Assignee:	Ivan Romanov <drizt72>
Status:	REPORTED ---
Severity:	normal	CC:	aacid, bradh, justin
Priority:	NOR
Version First Reported In:	2.3.1
Target Milestone:	---
Platform:	Android
OS:	Android 9.x
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Marek 2021-01-26 09:48:43 UTC

SUMMARY
Can't run OpenPGP on Android. QCA lib is searching for a plugin libqca-gnupg.so in crypto directory but Android does not copy subfolders from armeabi-v7a directory. Here is some issue discussed
https://github.com/gradle/gradle/issues/2394
Can there be some settings  that will tell library to look for a plugin in the directory where libqca-qt5 is located?
And also main question is: Can OpenPGP work at all on Android, maybe it relies on some OS specific commands like gpg gpg2 and packages gnupg and no matter what it will not work on Android ?


STEPS TO REPRODUCE
1. Cross compile QCA with command:
cmake . -DCMAKE_SYSTEM_NAME=Android -DCMAKE_TOOLCHAIN_FILE=/opt/Android/Ndk/android-ndk-r20/build/cmake/android.toolchain.cmake -DQt5_DIR=/opt/Felgo/Felgo/android_armv7/lib/cmake/Qt5/ -DQt5Core_DIR=/opt/Felgo/Felgo/android_armv7/lib/cmake/Qt5Core/ -DQt5Test_DIR=/opt/Felgo/Felgo/android_armv7/lib/cmake/Qt5Test/ -DQt5Network_DIR=/opt/Felgo/Felgo/android_armv7/lib/cmake/Qt5Network/ -DANDROID_PLATFORM=android-29 -DCMAKE_INSTALL_PREFIX=/usr/local/android -DUSE_RELATIVE_PATHS=ON
I'm using Felgo, but pure Qt should have the same result

2. Copy libraries into android/libs/armeabi-v7a within Qt project
ls -la armeabi-v7a/
drwxr-xr-x 2 franki franki     4096 sty 25 18:18 crypto
-rw-r--r-- 1 franki franki  3812452 sty 25 19:01 libqca-gnupg.so
-rw-r--r-- 1 franki franki   674004 sty 25 19:01 libqca-logger.so
-rw-r--r-- 1 franki franki 12997264 sty 25 18:18 libqca-qt5.so
-rw-r--r-- 1 franki franki  1025504 sty 25 19:01 libqca-softstore.so
drwxr-xr-x 3 franki franki     4096 sty 25 18:55 plugins
drwxr-xr-x 3 franki franki     4096 sty 25 18:18 qca-qt5

3. Build Android APK, only files from armeabi-v7a will be included in package, no subdirectories

OBSERVED RESULT

QCA::isSupported("openpgp") = false


EXPECTED RESULT

QCA::isSupported("openpgp") = true

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Debian Buster, KDE 5.14.5
(available in About System)
KDE Plasma Version: 5.14.5
KDE Frameworks Version: 5.54.0
Qt Version: 5.13.2

ADDITIONAL INFORMATION
Please Help ;)

Best Regards
Marek

Comment 1 Marek 2021-01-26 10:05:45 UTC

Looking at another project I have renamed libqca-gnupg.so into:
file lib/armeabi-v7a/libplugins_crypto_libqca-gnupg.so 
lib/armeabi-v7a/libplugins_crypto_libqca-gnupg.so: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, BuildID[sha1]=140485303f05c8975f71f17a186f1265341a7b73, stripped

And it is included in APK now, but still
QCA::isSupported("openpgp") = false
Is this because gnuPG is not available on Android ?

Best Regards
Marek