finally done with the module, tested on my own device

root-module/META-INF/com/google/android/update-binary

@@ -30,4 +30,4 @@ mount /data 2>/dev/null
 [ $MAGISK_VER_CODE -lt 20400 ] && require_new_magisk
 
 install_module
-exit 0
+exit 0

root-module/customize.sh

@@ -2,15 +2,51 @@
 
 API_URL="https://aln.kavishdevar.me/api"
 TEMP_DIR="$TMPDIR/aln_patch"
+UNZIP_DIR="/data/local/tmp/aln_unzip"
 PATCHED_FILE_NAME=""
 SOURCE_FILE=""
 LIBRARY_NAME=""
 APEX_DIR=false
 
 mkdir -p "$TEMP_DIR"
+mkdir -p "$UNZIP_DIR"
 
-CURL_CMD=$(command -v curl || echo "$MODPATH/system/bin/curl")
-export LD_LIBRARY_PATH="$MODPATH/system/lib64:$LD_LIBRARY_PATH"
+# Manually extract the $ZIPFILE to a temporary directory
+ui_print "Extracting $ZIPFILE to $UNZIP_DIR"
+unzip -o "$ZIPFILE" -d "$UNZIP_DIR" > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    ui_print "Failed to unzip $ZIPFILE"
+    abort "Failed to unzip $ZIPFILE"
+fi
+
+ui_print "Extracted module files to $UNZIP_DIR"
+
+# Determine architecture
+IS64BIT=false
+if [ "$(uname -m)" = "aarch64" ]; then
+    IS64BIT=true
+fi
+
+if [ "$IS64BIT" = true ]; then
+    export LD_LIBRARY_PATH="$UNZIP_DIR/libcurl-android/libs/arm64-v8a"
+    export PATH="$UNZIP_DIR/libcurl-android/bin/arm64-v8a:$PATH"
+    export CURL_CMD="$UNZIP_DIR/libcurl-android/bin/arm64-v8a/curl"
+    ln -s "$UNZIP_DIR/libcurl-android/libs/arm64-v8a/libz.so" "$UNZIP_DIR/libcurl-android/libs/arm64-v8a/libz.so.1"
+else
+    export LD_LIBRARY_PATH="$UNZIP_DIR/libcurl-android/libs/armeabi-v7a"
+    export PATH="$UNZIP_DIR/libcurl-android/bin/armeabi-v7a:$PATH"
+    export CURL_CMD="$UNZIP_DIR/libcurl-android/bin/armeabi-v7a/curl"
+    ln -s "$UNZIP_DIR/libcurl-android/libs/armeabi-v7a/libz.so" "$UNZIP_DIR/libcurl-android/libs/armeabi-v7a/libz.so.1"
+fi
+
+set_perm "$CURL_CMD" 0 0 755
+
+if [ -f "$CURL_CMD" ]; then
+    ui_print "curl binary found."
+else
+    ui_print "curl binary not found. Exiting."
+    abort "curl binary not found."
+fi
 
 if [ -f "/apex/com.android.btservices/lib64/libbluetooth_jni.so" ]; then
     SOURCE_FILE="/apex/com.android.btservices/lib64/libbluetooth_jni.so"
@@ -41,11 +77,9 @@ ui_print "Uploading $LIBRARY_NAME to the API for patching..."
 ui_print "If you're concerned about privacy, review the source code of the API at https://github.com/kavishdevar/aln/blob/main/root-module-manual/server.py"
 PATCHED_FILE_NAME="patched_$LIBRARY_NAME"
 
-$CURL_CMD -s -X POST "$API_URL" \
-    -F "file=@$SOURCE_FILE" \
-    -F "library_name=$LIBRARY_NAME" \
-    -o "$TEMP_DIR/$PATCHED_FILE_NAME" \
-    -D "$TEMP_DIR/headers.txt"
+ui_print "calling command $CURL_CMD --verbose -k -X POST $API_URL -F file=@$SOURCE_FILE -F library_name=$LIBRARY_NAME -o $TEMP_DIR/$PATCHED_FILE_NAME"
+
+$CURL_CMD --verbose -k -X POST $API_URL -F file=@"$SOURCE_FILE" -F library_name="$LIBRARY_NAME" -o "$TEMP_DIR/$PATCHED_FILE_NAME" > "$TEMP_DIR/headers.txt" 2>&1
 
 if [ -f "$TEMP_DIR/$PATCHED_FILE_NAME" ]; then
     ui_print "Received patched file from the API."
@@ -87,10 +121,7 @@ EOF
         ui_print "Created post-data-fs.sh script for apex library handling."
     fi
 else
-    ERROR_MESSAGE=$(grep -oP '(?<="error": ")[^"]+' "$TEMP_DIR/headers.txt")
-    ui_print "API Error: $ERROR_MESSAGE"
+    ui_print "Failed to receive patched file from the API."
     rm -rf "$TEMP_DIR"
     abort "Failed to patch the library."
-fi
-
-rm -rf "$TEMP_DIR"
+fi

root-module/libcurl-android/bin/arm64-v8a/curl-config

@@ -0,0 +1,196 @@
+#! /bin/sh
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 2001 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# SPDX-License-Identifier: curl
+#
+###########################################################################
+
+prefix="/app/libcurl-android/jni/build/curl/arm64-v8a"
+exec_prefix=${prefix}
+includedir=${prefix}/include
+cppflag_curl_staticlib=
+
+usage()
+{
+    cat <<EOF
+Usage: curl-config [OPTION]
+
+Available values for OPTION include:
+
+  --built-shared says 'yes' if libcurl was built shared
+  --ca        ca bundle install path
+  --cc        compiler
+  --cflags    pre-processor and compiler flags
+  --checkfor [version] check for (lib)curl of the specified version
+  --configure the arguments given to configure when building curl
+  --features  newline separated list of enabled features
+  --help      display this help and exit
+  --libs      library linking information
+  --prefix    curl install prefix
+  --protocols newline separated list of enabled protocols
+  --ssl-backends output the SSL backends libcurl was built to support
+  --static-libs static libcurl library linking information
+  --version   output version information
+  --vernum    output the version information as a number (hexadecimal)
+EOF
+
+    exit $1
+}
+
+if test $# -eq 0; then
+    usage 1
+fi
+
+while test $# -gt 0; do
+    case "$1" in
+    # this deals with options in the style
+    # --option=value and extracts the value part
+    # [not currently used]
+    -*=*) value=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+    *) value= ;;
+    esac
+
+    case "$1" in
+    --built-shared)
+        echo yes
+        ;;
+
+    --ca)
+        echo 
+        ;;
+
+    --cc)
+        echo "/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang"
+        ;;
+
+    --prefix)
+        echo "$prefix"
+        ;;
+
+    --feature|--features)
+        for feature in AsynchDNS HSTS HTTPS-proxy IPv6 Largefile NTLM NTLM_WB SSL TLS-SRP UnixSockets alt-svc libz threadsafe ""; do
+            test -n "$feature" && echo "$feature"
+        done
+        ;;
+
+    --protocols)
+        for protocol in DICT FILE FTP FTPS GOPHER GOPHERS HTTP HTTPS IMAP IMAPS MQTT POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP; do
+            echo "$protocol"
+        done
+        ;;
+
+    --version)
+        echo libcurl 7.86.0-DEV
+        exit 0
+        ;;
+
+    --checkfor)
+        checkfor=$2
+        cmajor=`echo $checkfor | cut -d. -f1`
+        cminor=`echo $checkfor | cut -d. -f2`
+        # when extracting the patch part we strip off everything after a
+        # dash as that's used for things like version 1.2.3-CVS
+        cpatch=`echo $checkfor | cut -d. -f3 | cut -d- -f1`
+
+        vmajor=`echo 7.86.0-DEV | cut -d. -f1`
+        vminor=`echo 7.86.0-DEV | cut -d. -f2`
+        # when extracting the patch part we strip off everything after a
+        # dash as that's used for things like version 1.2.3-CVS
+        vpatch=`echo 7.86.0-DEV | cut -d. -f3 | cut -d- -f1`
+
+        if test "$vmajor" -gt "$cmajor"; then
+            exit 0;
+        fi
+        if test "$vmajor" -eq "$cmajor"; then
+            if test "$vminor" -gt "$cminor"; then
+                exit 0
+            fi
+            if test "$vminor" -eq "$cminor"; then
+                if test "$cpatch" -le "$vpatch"; then
+                    exit 0
+                fi
+            fi
+        fi
+
+        echo "requested version $checkfor is newer than existing 7.86.0-DEV"
+        exit 1
+        ;;
+
+    --vernum)
+        echo 075600
+        exit 0
+        ;;
+
+    --help)
+        usage 0
+        ;;
+
+    --cflags)
+        if test "X$cppflag_curl_staticlib" = "X-DCURL_STATICLIB"; then
+          CPPFLAG_CURL_STATICLIB="-DCURL_STATICLIB "
+        else
+          CPPFLAG_CURL_STATICLIB=""
+        fi
+        if test "X${prefix}/include" = "X/usr/include"; then
+          echo "$CPPFLAG_CURL_STATICLIB"
+        else
+          echo "${CPPFLAG_CURL_STATICLIB}-I${prefix}/include"
+        fi
+        ;;
+
+    --libs)
+        if test "X${exec_prefix}/lib" != "X/usr/lib" -a "X${exec_prefix}/lib" != "X/usr/lib64"; then
+           CURLLIBDIR="-L${exec_prefix}/lib "
+        else
+           CURLLIBDIR=""
+        fi
+        if test "Xyes" = "Xno"; then
+          echo ${CURLLIBDIR}-lcurl -lssl -lcrypto -lssl -lcrypto -lz -lssl -lcrypto -lc++ -lz
+        else
+          echo ${CURLLIBDIR}-lcurl
+        fi
+        ;;
+    --ssl-backends)
+        echo "OpenSSL v3+"
+        ;;
+
+    --static-libs)
+        if test "Xyes" != "Xno" ; then
+          echo "${exec_prefix}/lib/libcurl.a" -L/app/libcurl-android/jni/build/openssl/arm64-v8a/lib -L/app/libcurl-android/jni/build/zlib/arm64-v8a/lib -L/app/libcurl-android/jni/build/zlib/arm64-v8a/lib -L/app/libcurl-android/jni/build/openssl/arm64-v8a/lib -lssl -lcrypto -lssl -lcrypto -lz -lssl -lcrypto -lc++ -lz
+        else
+          echo "curl was built with static libraries disabled" >&2
+          exit 1
+        fi
+        ;;
+
+    --configure)
+        echo " '--host=aarch64-linux-android' '--prefix=/app/libcurl-android/jni/build/curl/arm64-v8a' '--with-ssl=/app/libcurl-android/jni/build/openssl/arm64-v8a' '--with-zlib=/app/libcurl-android/jni/build/zlib/arm64-v8a' '--enable-static' '--enable-shared' '--disable-verbose' '--enable-threaded-resolver' '--enable-ipv6' 'host_alias=aarch64-linux-android' 'CC=/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang' 'CFLAGS=--sysroot=/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/sysroot -march=armv8-a -fPIC' 'LDFLAGS=-L/app/libcurl-android/jni/build/openssl/arm64-v8a/lib -L/app/libcurl-android/jni/build/zlib/arm64-v8a/lib' 'LIBS=-lssl -lcrypto -lc++ -lz' 'CPPFLAGS=-I/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include --sysroot=/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/sysroot'"
+        ;;
+
+    *)
+        echo "unknown option: $1"
+        usage 1
+        ;;
+    esac
+    shift
+done
+
+exit 0

root-module/libcurl-android/bin/armeabi-v7a/curl-config

@@ -0,0 +1,196 @@
+#! /bin/sh
+#***************************************************************************
+#                                  _   _ ____  _
+#  Project                     ___| | | |  _ \| |
+#                             / __| | | | |_) | |
+#                            | (__| |_| |  _ <| |___
+#                             \___|\___/|_| \_\_____|
+#
+# Copyright (C) 2001 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at https://curl.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# SPDX-License-Identifier: curl
+#
+###########################################################################
+
+prefix="/app/libcurl-android/jni/build/curl/armeabi-v7a"
+exec_prefix=${prefix}
+includedir=${prefix}/include
+cppflag_curl_staticlib=
+
+usage()
+{
+    cat <<EOF
+Usage: curl-config [OPTION]
+
+Available values for OPTION include:
+
+  --built-shared says 'yes' if libcurl was built shared
+  --ca        ca bundle install path
+  --cc        compiler
+  --cflags    pre-processor and compiler flags
+  --checkfor [version] check for (lib)curl of the specified version
+  --configure the arguments given to configure when building curl
+  --features  newline separated list of enabled features
+  --help      display this help and exit
+  --libs      library linking information
+  --prefix    curl install prefix
+  --protocols newline separated list of enabled protocols
+  --ssl-backends output the SSL backends libcurl was built to support
+  --static-libs static libcurl library linking information
+  --version   output version information
+  --vernum    output the version information as a number (hexadecimal)
+EOF
+
+    exit $1
+}
+
+if test $# -eq 0; then
+    usage 1
+fi
+
+while test $# -gt 0; do
+    case "$1" in
+    # this deals with options in the style
+    # --option=value and extracts the value part
+    # [not currently used]
+    -*=*) value=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+    *) value= ;;
+    esac
+
+    case "$1" in
+    --built-shared)
+        echo yes
+        ;;
+
+    --ca)
+        echo 
+        ;;
+
+    --cc)
+        echo "/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi21-clang"
+        ;;
+
+    --prefix)
+        echo "$prefix"
+        ;;
+
+    --feature|--features)
+        for feature in AsynchDNS HSTS HTTPS-proxy IPv6 Largefile NTLM NTLM_WB SSL TLS-SRP UnixSockets alt-svc libz threadsafe ""; do
+            test -n "$feature" && echo "$feature"
+        done
+        ;;
+
+    --protocols)
+        for protocol in DICT FILE FTP FTPS GOPHER GOPHERS HTTP HTTPS IMAP IMAPS MQTT POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP; do
+            echo "$protocol"
+        done
+        ;;
+
+    --version)
+        echo libcurl 7.86.0-DEV
+        exit 0
+        ;;
+
+    --checkfor)
+        checkfor=$2
+        cmajor=`echo $checkfor | cut -d. -f1`
+        cminor=`echo $checkfor | cut -d. -f2`
+        # when extracting the patch part we strip off everything after a
+        # dash as that's used for things like version 1.2.3-CVS
+        cpatch=`echo $checkfor | cut -d. -f3 | cut -d- -f1`
+
+        vmajor=`echo 7.86.0-DEV | cut -d. -f1`
+        vminor=`echo 7.86.0-DEV | cut -d. -f2`
+        # when extracting the patch part we strip off everything after a
+        # dash as that's used for things like version 1.2.3-CVS
+        vpatch=`echo 7.86.0-DEV | cut -d. -f3 | cut -d- -f1`
+
+        if test "$vmajor" -gt "$cmajor"; then
+            exit 0;
+        fi
+        if test "$vmajor" -eq "$cmajor"; then
+            if test "$vminor" -gt "$cminor"; then
+                exit 0
+            fi
+            if test "$vminor" -eq "$cminor"; then
+                if test "$cpatch" -le "$vpatch"; then
+                    exit 0
+                fi
+            fi
+        fi
+
+        echo "requested version $checkfor is newer than existing 7.86.0-DEV"
+        exit 1
+        ;;
+
+    --vernum)
+        echo 075600
+        exit 0
+        ;;
+
+    --help)
+        usage 0
+        ;;
+
+    --cflags)
+        if test "X$cppflag_curl_staticlib" = "X-DCURL_STATICLIB"; then
+          CPPFLAG_CURL_STATICLIB="-DCURL_STATICLIB "
+        else
+          CPPFLAG_CURL_STATICLIB=""
+        fi
+        if test "X${prefix}/include" = "X/usr/include"; then
+          echo "$CPPFLAG_CURL_STATICLIB"
+        else
+          echo "${CPPFLAG_CURL_STATICLIB}-I${prefix}/include"
+        fi
+        ;;
+
+    --libs)
+        if test "X${exec_prefix}/lib" != "X/usr/lib" -a "X${exec_prefix}/lib" != "X/usr/lib64"; then
+           CURLLIBDIR="-L${exec_prefix}/lib "
+        else
+           CURLLIBDIR=""
+        fi
+        if test "Xyes" = "Xno"; then
+          echo ${CURLLIBDIR}-lcurl -lssl -lcrypto -lssl -lcrypto -lz -lssl -lcrypto -lc++ -lz
+        else
+          echo ${CURLLIBDIR}-lcurl
+        fi
+        ;;
+    --ssl-backends)
+        echo "OpenSSL v3+"
+        ;;
+
+    --static-libs)
+        if test "Xyes" != "Xno" ; then
+          echo "${exec_prefix}/lib/libcurl.a" -L/app/libcurl-android/jni/build/openssl/armeabi-v7a/lib -L/app/libcurl-android/jni/build/zlib/armeabi-v7a/lib -L/app/libcurl-android/jni/build/zlib/armeabi-v7a/lib -L/app/libcurl-android/jni/build/openssl/armeabi-v7a/lib -lssl -lcrypto -lssl -lcrypto -lz -lssl -lcrypto -lc++ -lz
+        else
+          echo "curl was built with static libraries disabled" >&2
+          exit 1
+        fi
+        ;;
+
+    --configure)
+        echo " '--host=armv7a-linux-androideabi' '--prefix=/app/libcurl-android/jni/build/curl/armeabi-v7a' '--with-ssl=/app/libcurl-android/jni/build/openssl/armeabi-v7a' '--with-zlib=/app/libcurl-android/jni/build/zlib/armeabi-v7a' '--enable-static' '--enable-shared' '--disable-verbose' '--enable-threaded-resolver' '--enable-ipv6' 'host_alias=armv7a-linux-androideabi' 'CC=/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi21-clang' 'CFLAGS=--sysroot=/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/sysroot -march=armv7-a -mfloat-abi=softfp -mfpu=neon -fPIC' 'LDFLAGS=-L/app/libcurl-android/jni/build/openssl/armeabi-v7a/lib -L/app/libcurl-android/jni/build/zlib/armeabi-v7a/lib' 'LIBS=-lssl -lcrypto -lc++ -lz' 'CPPFLAGS=-I/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include --sysroot=/app/android-ndk-r22b/toolchains/llvm/prebuilt/linux-x86_64/sysroot'"
+        ;;
+
+    *)
+        echo "unknown option: $1"
+        usage 1
+        ;;
+    esac
+    shift
+done
+
+exit 0