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Android App Development include LDAP on MAC OS X

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  • sierdzioS Offline
    sierdzioS Offline
    sierdzio
    Moderators
    wrote on last edited by
    #2

    @mkmp29 said in Android App Development include LDAP on MAC OS X:

    mac: LIBS += -F/System/Library/Frameworks/LDAP.framework
    mac: LIBS += -framework LDAP

    You are only including the framework on Mac.

    In order to include a lib for Android, you need to:

    • cross-compile that library using Android NDK
    • import it in your .pro file
    • if the library is a shared lib, you also need to add it to ANDROID_EXTRA_LIBS

    (Z(:^

    1 Reply Last reply
    5
    • M Offline
      M Offline
      mkmp29
      wrote on last edited by mkmp29
      #3

      I compiled the framework with this script:

      #!/bin/bash

#adjust
export NDK_LOCATION="/Users/user123/Library/Android/sdk"

export ANDROID_NDK_HOME="$NDK_LOCATION/ndk-bundle"
export CC="arm-linux-androideabi-gcc"
export CXX="arm-linux-androideabi-g++"
export RANLIB="arm-linux-androideabi-ranlib"
export LD="arm-linux-androideabi-ld"
export AR="arm-linux-androideabi-ar"
export CROSS_COMPILE="arm-linux-androideabi"
#define android api
export ANDROID_API=16
export CFLAGS="-D__ANDROID_API__=$ANDROID_API"

#install toolchain
${ANDROID_NDK_HOME}/build/tools/make-standalone-toolchain.sh --platform=android-${ANDROID_API} --install-dir=${ANDROID_NDK_HOME}/android-toolchain

export PATH="$PATH:$ANDROID_NDK_HOME/android-toolchain/bin"
export LIB_DIR="`pwd`/lib"
export LDAP_OUTPUT_DIR="${LIB_DIR}/compiled/OpenLDAP"

#download lib
#git clone https://github.com/openldap/openldap.git
cd "$LIB_DIR/openldap"

./configure --host=${CROSS_COMPILE} --prefix="${LDAP_OUTPUT_DIR}" --with-yielding_select=yes

make depend
make && make install

      And tried to add it in my pro file:

      # ekke (Ekkehard Gentz) @ekkescorner
TEMPLATE = app
TARGET = stacked_pages_x

QT += qml quick core sql
CONFIG += c++11

INCLUDEPATH += lib/compiled/OpenLDAP/include
LIBS += -L lib/compiled/OpenLDAP/lib -lldap
ANDROID_EXTRA_LIBS += lib/compiled/OpenLDAP/lib/libldap.so

HEADERS += \
    handlenewstudent.h \
    applicationui.hpp \
    uiconstants.hpp \
    entities/admin.h \
    dbhelper.h \
    entities/student.h \
    handletextfield.h \
    lists/studentlist.h \
    entities/studentlistmodel.h\
    ldapAuth.h

SOURCES += main.cpp \
    applicationui.cpp \
    entities/admin.cpp \
    dbhelper.cpp \
    entities/student.cpp \
    handletextfield.cpp \
    lists/studentlist.cpp \
    entities/studentlistmodel.cpp\
    ldapAuth.cpp \
    handlenewstudent.cpp

lupdate_only {
    SOURCES +=  main.qml \
    common/*.qml \
    pages/*.qml
}

OTHER_FILES += images/black/*.png \
    images/black/x18/*.png \
    images/black/x36/*.png \
    images/black/x48/*.png \
    images/white/*.png \
    images/white/x18/*.png \
    images/white/x36/*.png \
    images/white/x48/*.png \
    translations/*.* \
    images/LICENSE \
    LICENSE \
    *.md

RESOURCES += \
    translations.qrc \
    qml.qrc \
    images.qrc

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =

# Default rules for deployment.
include(deployment.pri)

# T R A N S L A T I O N S

# if languages are added:
# 1. rebuild project to generate *.qm
# 2. add existing .qm files to translations.qrc

# if changes to translatable strings:
# 1. Run Tools-External-Linguist-Update
# 2. Run Linguist and do translations
# 3. Build and run on iOS and Android to verify translations
# 4. Optional: if translations not done: Run Tools-External-Linguist-Release

# Supported languages
LANGUAGES = de en

# used to create .ts files
 defineReplace(prependAll) {
     for(a,$$1):result += $$2$${a}$$3
     return($$result)
 }
# Available translations
tsroot = $$join(TARGET,,,.ts)
tstarget = $$join(TARGET,,,_)
TRANSLATIONS = $$PWD/translations/$$tsroot
TRANSLATIONS += $$prependAll(LANGUAGES, $$PWD/translations/$$tstarget, .ts)
# run LRELEASE to generate the qm files
qtPrepareTool(LRELEASE, lrelease)
 for(tsfile, TRANSLATIONS) {
     command = $$LRELEASE $$tsfile
     system($$command)|error("Failed to run: $$command")
 }

DISTFILES += \
    pages/PageStudentNew.qml \
    pages/PageItemOverview.qml \
    pages/PageItemNew.qml \
    pages/PageHome.qml \
    pages/PageUserOverview.qml \
    pages/PageUserNew.qml \
    pages/PageBorrowedItemsOverview.qml \
    pages/PageBorrowItem.qml \
    pages/PageGiveBackItem.qml \
    pages/PageLogin.qml

      But it still don't work, it throws errors that functions are not in the declared scope

      /Edit: solved it, I used deprecated functionality of the library that can be enabled over the macro LDAP_DEPRECATED

      sierdzioS 1 Reply Last reply
      1
      • M mkmp29

        I compiled the framework with this script:

        #!/bin/bash

#adjust
export NDK_LOCATION="/Users/user123/Library/Android/sdk"

export ANDROID_NDK_HOME="$NDK_LOCATION/ndk-bundle"
export CC="arm-linux-androideabi-gcc"
export CXX="arm-linux-androideabi-g++"
export RANLIB="arm-linux-androideabi-ranlib"
export LD="arm-linux-androideabi-ld"
export AR="arm-linux-androideabi-ar"
export CROSS_COMPILE="arm-linux-androideabi"
#define android api
export ANDROID_API=16
export CFLAGS="-D__ANDROID_API__=$ANDROID_API"

#install toolchain
${ANDROID_NDK_HOME}/build/tools/make-standalone-toolchain.sh --platform=android-${ANDROID_API} --install-dir=${ANDROID_NDK_HOME}/android-toolchain

export PATH="$PATH:$ANDROID_NDK_HOME/android-toolchain/bin"
export LIB_DIR="`pwd`/lib"
export LDAP_OUTPUT_DIR="${LIB_DIR}/compiled/OpenLDAP"

#download lib
#git clone https://github.com/openldap/openldap.git
cd "$LIB_DIR/openldap"

./configure --host=${CROSS_COMPILE} --prefix="${LDAP_OUTPUT_DIR}" --with-yielding_select=yes

make depend
make && make install

        And tried to add it in my pro file:

        # ekke (Ekkehard Gentz) @ekkescorner
TEMPLATE = app
TARGET = stacked_pages_x

QT += qml quick core sql
CONFIG += c++11

INCLUDEPATH += lib/compiled/OpenLDAP/include
LIBS += -L lib/compiled/OpenLDAP/lib -lldap
ANDROID_EXTRA_LIBS += lib/compiled/OpenLDAP/lib/libldap.so

HEADERS += \
    handlenewstudent.h \
    applicationui.hpp \
    uiconstants.hpp \
    entities/admin.h \
    dbhelper.h \
    entities/student.h \
    handletextfield.h \
    lists/studentlist.h \
    entities/studentlistmodel.h\
    ldapAuth.h

SOURCES += main.cpp \
    applicationui.cpp \
    entities/admin.cpp \
    dbhelper.cpp \
    entities/student.cpp \
    handletextfield.cpp \
    lists/studentlist.cpp \
    entities/studentlistmodel.cpp\
    ldapAuth.cpp \
    handlenewstudent.cpp

lupdate_only {
    SOURCES +=  main.qml \
    common/*.qml \
    pages/*.qml
}

OTHER_FILES += images/black/*.png \
    images/black/x18/*.png \
    images/black/x36/*.png \
    images/black/x48/*.png \
    images/white/*.png \
    images/white/x18/*.png \
    images/white/x36/*.png \
    images/white/x48/*.png \
    translations/*.* \
    images/LICENSE \
    LICENSE \
    *.md

RESOURCES += \
    translations.qrc \
    qml.qrc \
    images.qrc

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =

# Default rules for deployment.
include(deployment.pri)

# T R A N S L A T I O N S

# if languages are added:
# 1. rebuild project to generate *.qm
# 2. add existing .qm files to translations.qrc

# if changes to translatable strings:
# 1. Run Tools-External-Linguist-Update
# 2. Run Linguist and do translations
# 3. Build and run on iOS and Android to verify translations
# 4. Optional: if translations not done: Run Tools-External-Linguist-Release

# Supported languages
LANGUAGES = de en

# used to create .ts files
 defineReplace(prependAll) {
     for(a,$$1):result += $$2$${a}$$3
     return($$result)
 }
# Available translations
tsroot = $$join(TARGET,,,.ts)
tstarget = $$join(TARGET,,,_)
TRANSLATIONS = $$PWD/translations/$$tsroot
TRANSLATIONS += $$prependAll(LANGUAGES, $$PWD/translations/$$tstarget, .ts)
# run LRELEASE to generate the qm files
qtPrepareTool(LRELEASE, lrelease)
 for(tsfile, TRANSLATIONS) {
     command = $$LRELEASE $$tsfile
     system($$command)|error("Failed to run: $$command")
 }

DISTFILES += \
    pages/PageStudentNew.qml \
    pages/PageItemOverview.qml \
    pages/PageItemNew.qml \
    pages/PageHome.qml \
    pages/PageUserOverview.qml \
    pages/PageUserNew.qml \
    pages/PageBorrowedItemsOverview.qml \
    pages/PageBorrowItem.qml \
    pages/PageGiveBackItem.qml \
    pages/PageLogin.qml

        But it still don't work, it throws errors that functions are not in the declared scope

        /Edit: solved it, I used deprecated functionality of the library that can be enabled over the macro LDAP_DEPRECATED

        sierdzioS Offline
        sierdzioS Offline
        sierdzio
        Moderators
        wrote on last edited by
        #4

        @mkmp29 said in Android App Development include LDAP on MAC OS X:

        But it still don't work, it throws errors that functions are not in the declared scope

        What errors and where?

        This line looks fishy to me: --host=${CROSS_COMPILE}

        The host is your host machine (your Mac), so it should rather be something like x86_64, and not the ARM architecture. But maybe LDAP is using some other convention, I don't know.

        (Z(:^

        1 Reply Last reply
        0
        • M Offline
          M Offline
          mkmp29
          wrote on last edited by mkmp29
          #5
          This post is deleted!
          1 Reply Last reply
          0
          • M Offline
            M Offline
            mkmp29
            wrote on last edited by
            #6

            My error is:

            :-1: error: error: cannot find -lldap

            I think there is mistake in the .pro file:

            The Filestructure is:

            - *.pro
- lib
  - compiled
    - OpenLDAP
       - lib
       - include 
       - *
- other files

            in the lib directory are these files:

            liblber-2-devel.so.0       libldap.la
liblber-2-devel.so.0.0.0   libldap.so
liblber.a                  libldap_r-2-devel.so.0
liblber.la                 libldap_r-2-devel.so.0.0.0
liblber.so                 libldap_r.a
libldap-2-devel.so.0       libldap_r.la
libldap-2-devel.so.0.0.0   libldap_r.so
libldap.a
            1 Reply Last reply
            0
            • sierdzioS Offline
              sierdzioS Offline
              sierdzio
              Moderators
              wrote on last edited by
              #7

              @mkmp29 said in Android App Development include LDAP on MAC OS X:

              -L lib/compiled/OpenLDAP/lib -lldap

              There should be no space between '-L' and your library search path.

              (Z(:^

              1 Reply Last reply
              1
              • M Offline
                M Offline
                mkmp29
                wrote on last edited by mkmp29
                #8

                @mkmp29 said in Android App Development include LDAP on MAC OS X:

                INCLUDEPATH += lib/compiled/OpenLDAP/include
                LIBS += -L lib/compiled/OpenLDAP/lib -lldap
                ANDROID_EXTRA_LIBS += lib/compiled/OpenLDAP/lib/libldap.so

                Didn't work either. I just get the message for multiple lib function:

                ldapAuth.o:ldapAuth.cpp:function LDAPAuth::~LDAPAuth(): error: undefined reference to 'ldap_unbind'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::~LDAPAuth(): error: undefined reference to 'ldap_unbind'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::checkStatus(QString const&, int): error: undefined reference to 'ldap_err2string'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::checkStatus(QString const&, int): error: undefined reference to 'ldap_err2string'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_initialize'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_initialize'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_set_option'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_set_option'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_start_tls_s'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_start_tls_s'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::init(): error: undefined reference to 'ldap_simple_bind_s'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_search_ext_s'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_first_entry'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_get_dn'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_first_attribute'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_get_values'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_next_attribute'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_memfree'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_next_entry'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_msgfree'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::search(QString const&): error: undefined reference to 'ldap_msgfree'
ldapAuth.o:ldapAuth.cpp:function LDAPAuth::authentificate(QString const&, QString const&): error: undefined reference to 'ldap_simple_bind_s'
collect2: error: ld returned 1 exit status

                Looks like the library is compiled wrong ?

                1 Reply Last reply
                0
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by SGaist
                  #9

                  Hi,

                  Did you check the x86 vs x86_64 architecture for your library ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                  M 2 Replies Last reply
                  0
                  • SGaistS SGaist

                    Hi,

                    Did you check the x86 vs x86_64 architecture for your library ?

                    M Offline
                    M Offline
                    mkmp29
                    wrote on last edited by
                    #10

                    @SGaist
                    I can only compile the library for the arm architecture. Other architecture fail because they can't find libraries...

                    Is there a better solution than compile the library for every architecture of the enddevice?

                    1 Reply Last reply
                    0
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #11

                      No there's not.

                      The only alternative is to check whether your targets already have them available in their root filesystem and re-use them.

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      M 1 Reply Last reply
                      0
                      • SGaistS SGaist

                        No there's not.

                        The only alternative is to check whether your targets already have them available in their root filesystem and re-use them.

                        M Offline
                        M Offline
                        mkmp29
                        wrote on last edited by
                        #12
                        This post is deleted!
                        1 Reply Last reply
                        0
                        • SGaistS SGaist

                          Hi,

                          Did you check the x86 vs x86_64 architecture for your library ?

                          M Offline
                          M Offline
                          mkmp29
                          wrote on last edited by
                          #13

                          @SGaist

                          I can compile the application and push it to the virtual device. But i get the error:

                          W System.err: Caused by: java.lang.UnsatisfiedLinkError: dlopen failed: library "liblber-2-devel.so.0" not found

                          This file is contained in the lib folder of my cross compiled library. I read a little bit and tried to load the library during runtime with the QT Object: QLibrary and the function load. But it didnt work.

                          this is the part of my .pro file

                          ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap.so
ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/liblber.so
ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap_r.so
#ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/liblber-2-devel.so.0
#ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/liblber-2-devel.so.0.0.0
#ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap-2-devel.so.0
#ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap-2-devel.so.0.0.0
#ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap_r-2-devel.so.0
#ANDROID_EXTRA_LIBS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap_r-2-devel.so.0.0.0

LIBS += -L$$PWD/lib/compiled/openldap-i686-linux-android_16/lib/ -lldap

INCLUDEPATH += $$PWD/lib/compiled/openldap-i686-linux-android_16/include
DEPENDPATH += $$PWD/lib/compiled/openldap-i686-linux-android_16/include

PRE_TARGETDEPS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap.a
LIBS += -L$$PWD/lib/compiled/openldap-i686-linux-android_16/lib/ -llber

INCLUDEPATH += $$PWD/lib/compiled/openldap-i686-linux-android_16/include
DEPENDPATH += $$PWD/lib/compiled/openldap-i686-linux-android_16/include

PRE_TARGETDEPS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/liblber.a

LIBS += -L$$PWD/lib/compiled/openldap-i686-linux-android_16/lib/ -lldap_r

INCLUDEPATH += $$PWD/lib/compiled/openldap-i686-linux-android_16/include
DEPENDPATH += $$PWD/lib/compiled/openldap-i686-linux-android_16/include

PRE_TARGETDEPS += $$PWD/lib/compiled/openldap-i686-linux-android_16/lib/libldap_r.a

                          Library loading at the beginning of the main method.

                              QLibrary ldap("ldap");
    QLibrary ldap_r("ldap_r");
    QLibrary lber("lber");

    if(!ldap.load() || !lber.load() || !ldap_r.load()){
        qDebug() << "Failed loading library";
    }

                          The libraries that are contained in the lib folder are listed above

                          1 Reply Last reply
                          0
                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #14

                            IIRC, android doesn't support library versioning so ensure that you don't have a symbolic link copied to your package but a copy of the library.

                            Interested in AI ? www.idiap.ch
                            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                            M 2 Replies Last reply
                            1
                            • SGaistS SGaist

                              IIRC, android doesn't support library versioning so ensure that you don't have a symbolic link copied to your package but a copy of the library.

                              M Offline
                              M Offline
                              mkmp29
                              wrote on last edited by mkmp29
                              #15
                              This post is deleted!
                              1 Reply Last reply
                              0
                              • SGaistS SGaist

                                IIRC, android doesn't support library versioning so ensure that you don't have a symbolic link copied to your package but a copy of the library.

                                M Offline
                                M Offline
                                mkmp29
                                wrote on last edited by
                                #16

                                @SGaist said in Android App Development include LDAP on MAC OS X:

                                IIRC, android doesn't support library versioning so ensure that you don't have a symbolic link copied to your package but a copy of the library.

                                I removed the links from the libraries, deleted the links and renamed the lib to its original name, but the error still appears...

                                1 Reply Last reply
                                0
                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #17

                                  Which one ? The missing symbol or the dlopen error ?

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  M 1 Reply Last reply
                                  0
                                  • SGaistS SGaist

                                    Which one ? The missing symbol or the dlopen error ?

                                    M Offline
                                    M Offline
                                    mkmp29
                                    wrote on last edited by
                                    #18

                                    @SGaist

                                    the dlopen error.

                                    I also tried to copy the versioned libs into the same folder in the android libs directory. But it didn't work.

                                    1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #19

                                      Why are you dlopening the library on Android rather than linking to it ?

                                      Interested in AI ? www.idiap.ch
                                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                      M 1 Reply Last reply
                                      0
                                      • SGaistS SGaist

                                        Why are you dlopening the library on Android rather than linking to it ?

                                        M Offline
                                        M Offline
                                        mkmp29
                                        wrote on last edited by
                                        #20

                                        @SGaist

                                        this does the the library... I only include the library into my project

                                        SGaistS 1 Reply Last reply
                                        0
                                        • M mkmp29

                                          @SGaist

                                          this does the the library... I only include the library into my project

                                          SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #21

                                          @mkmp29 said in Android App Development include LDAP on MAC OS X:

                                          this does the the library...

                                          Can you rephrase that please ? I don't understand what it means at all.

                                          Interested in AI ? www.idiap.ch
                                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                          sierdzioS 1 Reply Last reply
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