QNetworkRequest not working on qt 5.8 and android 7.0

Joseneas

Hi,

I have the same issue in my android app when run on Android 7. The application not uses https, and the request is make by javascript with XMLHttpRequest in a qml component.

The android application crash when start a new request for the remote service.

Why Qt require openssl for http request?

I follow the tip described here: http://doc.qt.io/qt-5/opensslsupport.html, but not work for me.

Any solution for this?

Joseneas

I found a solution for this problem with OpenSSL in Android 7.

Create a sh file with the code below and execute in same dir of openssl tar.gz file. The version tested is 1.0.2. The file can be download here: https://www.openssl.org/source/. This script will generate the .so files: libcrypto.so and libssl.so.

#!/bin/sh
tar xzvf ~/Downloads/openssl-1.0.2g.tar.gz
cd openssl-1.0.2g
# path to android ndk folder
export NDK=~/qt/android-ndk-r13b
$NDK/build/tools/make-standalone-toolchain.sh --platform=android-9 --toolchain=arm-linux-androideabi-4.6 --install-dir=`pwd`/android-toolchain-arm
export TOOLCHAIN_PATH=`pwd`/android-toolchain-arm/bin
export TOOL=arm-linux-androideabi
export NDK_TOOLCHAIN_BASENAME=${TOOLCHAIN_PATH}/${TOOL}
export CC=$NDK_TOOLCHAIN_BASENAME-gcc
export CXX=$NDK_TOOLCHAIN_BASENAME-g++
export LINK=${CXX}
export LD=$NDK_TOOLCHAIN_BASENAME-ld
export AR=$NDK_TOOLCHAIN_BASENAME-ar
export RANLIB=$NDK_TOOLCHAIN_BASENAME-ranlib
export STRIP=$NDK_TOOLCHAIN_BASENAME-strip
export ARCH_FLAGS="-mthumb"
export ARCH_LINK=
export CPPFLAGS=" ${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64 "
export CXXFLAGS=" ${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64 -frtti -fexceptions "
export CFLAGS=" ${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64 "
export LDFLAGS=" ${ARCH_LINK} "
# the target of libraries files is armv7
cd ~/Downloads/openssl-1.0.2g && ./Configure android-armv7 shared

After run the script, open the Makefile and execute the step 5 described here: http://doc.qt.io/qt-5/opensslsupport.html. After edit the Makefile, execute the next commands (into openssl extracted folder) to generate the .so files.

make clean && PATH=$TOOLCHAIN_PATH:$PATH make

Now, move the .so files to your project.
To package the .so files into apk, add the below code into .pro file of the project:

    contains(ANDROID_TARGET_ARCH,arm) {
        # update the path of the libraries where you put in your project.
        # I put in: myapp/android/libs/openssl/armeabi-v7a/:
        ANDROID_EXTRA_LIBS = \
            $$PWD/android/libs/openssl/armeabi-v7a/libcrypto.so \
            $$PWD/android/libs/openssl/armeabi-v7a/ibssl.so
    }

ekkescorner

@Joseneas uups ... just did test running one of my projects moved from 5.7 to 5.8 on a Google Pixel C tablet with Android 7.0
and the same happens here: App is crashing

W linker  : library "libcrypto.so" ("/system/lib/libcrypto.so") needed or dlopened by "/data/app/org.ekkescorner.tt-2/lib/arm/libQt5Core.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android.
W linker  : library "libssl.so" ("/system/lib/libssl.so") needed or dlopened by "/data/app/org.ekkescorner.tt-2/lib/arm/libQt5Core.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android.
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve CRYPTO_free
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve EVP_CipherFinal
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve SSL_CTX_ctrl
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve SSL_ctrl
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_noconf
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve EC_get_builtin_curves
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot resolve EC_curve_nist2nid
W libtimetracker10_te_qt.so: (null):0 ((null)): qt.network.ssl: QSslSocket: cannot call unresolved function OPENSSL_add_all_algorithms_conf
F libc    : Fatal signal 11 (SIGSEGV), code 1, fault addr 0x4 in tid 24205 (QtThread)

running same app from Qt 5.7 all works on Android 7
this app only uses http://

ekkescorner

This post is deleted!

ekkescorner

This post is deleted!

ekkescorner

I'm trying to make it run - see discussion in https://forum.qt.io/topic/76978/android-how-to-install-so-file

Tchaumont

Hi,

I compiled libcrypt.so and libssl.so (v1.1.0e). But, when i include in my app i have a crash in android 7.
If i put off this .so i can test my app in Android 7 but with this warning

W linker : library "libcrypto.so" ("/system/lib/libcrypto.so") needed or dlopened by "/data/app/pe.com.medicalint-1/lib/arm/libQt5Core.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android.
W linker : library "libssl.so" ("/system/lib/libssl.so") needed or dlopened by "/data/app/pe.com.medicalint-1/lib/arm/libQt5Core.so" is not accessible for the namespace "classloader-namespace" - the access is temporarily granted as a workaround for http://b/26394120, note that the access will be removed in future releases of Android.

What can i do for do my App in Android 7?

ekkescorner

@Tchaumont for me it works. see also here
https://forum.qt.io/topic/77150/qt-5-8-qnam-openssl-crash-openssl_threads
from comments seems to work for others too

jsulm

@Tchaumont said in QNetworkRequest not working on qt 5.8 and android 7.0:

i have a crash in android 7

What exactly happens? Error message?

m.abed

@Tchaumont whats NDK version u use?
i think should use for now r10e
[https://github.com/ekke/android-openssl-qt/issues/3](link url)