dnl Licensed to the Apache Software Foundation (ASF) under one or more

dnl contributor license agreements.  See the NOTICE file distributed with

dnl this work for additional information regarding copyright ownership.

dnl The ASF licenses this file to You under the Apache License, Version 2.0

dnl (the "License"); you may not use this file except in compliance with

dnl the License.  You may obtain a copy of the License at

dnl

dnl      http://www.apache.org/licenses/LICENSE-2.0

dnl

dnl Unless required by applicable law or agreed to in writing, software

dnl distributed under the License is distributed on an "AS IS" BASIS,

dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

dnl See the License for the specific language governing permissions and

dnl limitations under the License.

dnl

dnl APACHE_CHECK_CURL

dnl

dnl Configure for libcurl, giving preference to

dnl "--with-curl=<path>" if it was specified.

dnl

AC_DEFUN([APACHE_CHECK_CURL],[

  AC_CACHE_CHECK([for curl], [ac_cv_curl], [

    dnl initialise the variables we use

    ac_cv_curl=no

    ap_curl_found=""

    ap_curl_base=""

    ap_curl_libs=""

    dnl Determine the curl base directory, if any

    AC_MSG_CHECKING([for user-provided curl base directory])

    AC_ARG_WITH(curl, APACHE_HELP_STRING(--with-curl=PATH, curl installation directory), [

      dnl If --with-curl specifies a directory, we use that directory

      if test "x$withval" != "xyes" -a "x$withval" != "x"; then

        dnl This ensures $withval is actually a directory and that it is absolute

        ap_curl_base="`cd $withval ; pwd`"

      fi

    ])

    if test "x$ap_curl_base" = "x"; then

      AC_MSG_RESULT(none)

    else

      AC_MSG_RESULT($ap_curl_base)

    fi

    dnl Run header and version checks

    saved_CPPFLAGS="$CPPFLAGS"

    saved_LIBS="$LIBS"

    saved_LDFLAGS="$LDFLAGS"

    dnl Before doing anything else, load in pkg-config variables

    if test -n "$PKGCONFIG"; then

      saved_PKG_CONFIG_PATH="$PKG_CONFIG_PATH"

      AC_MSG_CHECKING([for pkg-config along $PKG_CONFIG_PATH])

      if test "x$ap_curl_base" != "x" ; then

        if test -f "${ap_curl_base}/lib/pkgconfig/libcurl.pc"; then

          dnl Ensure that the given path is used by pkg-config too, otherwise

          dnl the system libcurl.pc might be picked up instead.

          PKG_CONFIG_PATH="${ap_curl_base}/lib/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"

          export PKG_CONFIG_PATH

        elif test -f "${ap_curl_base}/lib64/pkgconfig/libcurl.pc"; then

          dnl Ensure that the given path is used by pkg-config too, otherwise

          dnl the system libcurl.pc might be picked up instead.

          PKG_CONFIG_PATH="${ap_curl_base}/lib64/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"

          export PKG_CONFIG_PATH

        fi

      fi

      AC_ARG_ENABLE(curl-staticlib-deps,APACHE_HELP_STRING(--enable-curl-staticlib-deps,[link mod_md with dependencies of libcurl's static libraries (as indicated by "pkg-config --static"). Must be specified in addition to --enable-md.]), [

        if test "$enableval" = "yes"; then

          PKGCONFIG_LIBOPTS="--static"

        fi

      ])

      ap_curl_libs="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-l --silence-errors libcurl`"

      if test $? -eq 0; then

        ap_curl_found="yes"

        pkglookup="`$PKGCONFIG --cflags-only-I libcurl`"

        APR_ADDTO(CPPFLAGS, [$pkglookup])

        APR_ADDTO(MOD_CFLAGS, [$pkglookup])

        pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-L libcurl`"

        APR_ADDTO(LDFLAGS, [$pkglookup])

        APR_ADDTO(MOD_LDFLAGS, [$pkglookup])

        pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-other libcurl`"

        APR_ADDTO(LDFLAGS, [$pkglookup])

        APR_ADDTO(MOD_LDFLAGS, [$pkglookup])

      fi

      PKG_CONFIG_PATH="$saved_PKG_CONFIG_PATH"

    fi

    dnl fall back to the user-supplied directory if not found via pkg-config

    if test "x$ap_curl_base" != "x" -a "x$ap_curl_found" = "x"; then

      APR_ADDTO(CPPFLAGS, [-I$ap_curl_base/include])

      APR_ADDTO(MOD_CFLAGS, [-I$ap_curl_base/include])

      APR_ADDTO(LDFLAGS, [-L$ap_curl_base/lib])

      APR_ADDTO(MOD_LDFLAGS, [-L$ap_curl_base/lib])

      if test "x$ap_platform_runtime_link_flag" != "x"; then

        APR_ADDTO(LDFLAGS, [$ap_platform_runtime_link_flag$ap_curl_base/lib])

        APR_ADDTO(MOD_LDFLAGS, [$ap_platform_runtime_link_flag$ap_curl_base/lib])

      fi

    fi

    AC_CHECK_HEADERS([curl/curl.h])

    AC_MSG_CHECKING([for curl version >= 7.50])

    AC_TRY_COMPILE([#include <curl/curlver.h>],[

#if !defined(LIBCURL_VERSION_MAJOR)

#error "Missing libcurl version"

#endif

#if LIBCURL_VERSION_MAJOR < 7

#error "Unsupported libcurl version " LIBCURL_VERSION

#endif

#if LIBCURL_VERSION_MAJOR == 7 && LIBCURL_VERSION_MINOR < 50

#error "Unsupported libcurl version " LIBCURL_VERSION

#endif],

      [AC_MSG_RESULT(OK)

       ac_cv_curl=yes],

      [AC_MSG_RESULT(FAILED)])

    if test "x$ac_cv_curl" = "xyes"; then

      ap_curl_libs="${ap_curl_libs:--lcurl} `$apr_config --libs`"

      APR_ADDTO(MOD_LDFLAGS, [$ap_curl_libs])

      APR_ADDTO(LIBS, [$ap_curl_libs])

    fi

    dnl restore

    CPPFLAGS="$saved_CPPFLAGS"

    LIBS="$saved_LIBS"

    LDFLAGS="$saved_LDFLAGS"

  ])

  if test "x$ac_cv_curl" = "xyes"; then

    AC_DEFINE(HAVE_CURL, 1, [Define if curl is available])

  fi

])

dnl

dnl APACHE_CHECK_JANSSON

dnl

dnl Configure for libjansson, giving preference to

dnl "--with-jansson=<path>" if it was specified.

dnl

AC_DEFUN([APACHE_CHECK_JANSSON],[

  AC_CACHE_CHECK([for jansson], [ac_cv_jansson], [

    dnl initialise the variables we use

    ac_cv_jansson=no

    ap_jansson_found=""

    ap_jansson_base=""

    ap_jansson_libs=""

    dnl Determine the jansson base directory, if any

    AC_MSG_CHECKING([for user-provided jansson base directory])

    AC_ARG_WITH(jansson, APACHE_HELP_STRING(--with-jansson=PATH, jansson installation directory), [

      dnl If --with-jansson specifies a directory, we use that directory

      if test "x$withval" != "xyes" -a "x$withval" != "x"; then

        dnl This ensures $withval is actually a directory and that it is absolute

        ap_jansson_base="`cd $withval ; pwd`"

      fi

    ])

    if test "x$ap_jansson_base" = "x"; then

      AC_MSG_RESULT(none)

    else

      AC_MSG_RESULT($ap_jansson_base)

    fi

    dnl Run header and version checks

    saved_CPPFLAGS="$CPPFLAGS"

    saved_LIBS="$LIBS"

    saved_LDFLAGS="$LDFLAGS"

    dnl Before doing anything else, load in pkg-config variables

    if test -n "$PKGCONFIG"; then

      saved_PKG_CONFIG_PATH="$PKG_CONFIG_PATH"

      AC_MSG_CHECKING([for pkg-config along $PKG_CONFIG_PATH])

      if test "x$ap_jansson_base" != "x" ; then

        if test -f "${ap_jansson_base}/lib/pkgconfig/libjansson.pc"; then

          dnl Ensure that the given path is used by pkg-config too, otherwise

          dnl the system libjansson.pc might be picked up instead.

          PKG_CONFIG_PATH="${ap_jansson_base}/lib/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"

          export PKG_CONFIG_PATH

        elif test -f "${ap_jansson_base}/lib64/pkgconfig/libjansson.pc"; then

          dnl Ensure that the given path is used by pkg-config too, otherwise

          dnl the system libjansson.pc might be picked up instead.

          PKG_CONFIG_PATH="${ap_jansson_base}/lib64/pkgconfig${PKG_CONFIG_PATH+:}${PKG_CONFIG_PATH}"

          export PKG_CONFIG_PATH

        fi

      fi

      AC_ARG_ENABLE(jansson-staticlib-deps,APACHE_HELP_STRING(--enable-jansson-staticlib-deps,[link mod_md with dependencies of libjansson's static libraries (as indicated by "pkg-config --static"). Must be specified in addition to --enable-md.]), [

        if test "$enableval" = "yes"; then

          PKGCONFIG_LIBOPTS="--static"

        fi

      ])

      ap_jansson_libs="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-l --silence-errors libjansson`"

      if test $? -eq 0; then

        ap_jansson_found="yes"

        pkglookup="`$PKGCONFIG --cflags-only-I libjansson`"

        APR_ADDTO(CPPFLAGS, [$pkglookup])

        APR_ADDTO(MOD_CFLAGS, [$pkglookup])

        pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-L libjansson`"

        APR_ADDTO(LDFLAGS, [$pkglookup])

        APR_ADDTO(MOD_LDFLAGS, [$pkglookup])

        pkglookup="`$PKGCONFIG $PKGCONFIG_LIBOPTS --libs-only-other libjansson`"

        APR_ADDTO(LDFLAGS, [$pkglookup])

        APR_ADDTO(MOD_LDFLAGS, [$pkglookup])

      fi

      PKG_CONFIG_PATH="$saved_PKG_CONFIG_PATH"

    fi

    dnl fall back to the user-supplied directory if not found via pkg-config

    if test "x$ap_jansson_base" != "x" -a "x$ap_jansson_found" = "x"; then

      APR_ADDTO(CPPFLAGS, [-I$ap_jansson_base/include])

      APR_ADDTO(MOD_CFLAGS, [-I$ap_jansson_base/include])

      APR_ADDTO(LDFLAGS, [-L$ap_jansson_base/lib])

      APR_ADDTO(MOD_LDFLAGS, [-L$ap_jansson_base/lib])

      if test "x$ap_platform_runtime_link_flag" != "x"; then

        APR_ADDTO(LDFLAGS, [$ap_platform_runtime_link_flag$ap_jansson_base/lib])

        APR_ADDTO(MOD_LDFLAGS, [$ap_platform_runtime_link_flag$ap_jansson_base/lib])

      fi

    fi

    # attempts to include jansson.h fail me. So lets make sure we can at least

    # include its other header file

    AC_TRY_COMPILE([#include <jansson_config.h>],[],

      [AC_MSG_RESULT(OK) 

       ac_cv_jansson=yes], 

       [AC_MSG_RESULT(FAILED)])

    if test "x$ac_cv_jansson" = "xyes"; then

      ap_jansson_libs="${ap_jansson_libs:--ljansson} `$apr_config --libs`"

      APR_ADDTO(MOD_LDFLAGS, [$ap_jansson_libs])

      APR_ADDTO(LIBS, [$ap_jansson_libs])

    fi

    dnl restore

    CPPFLAGS="$saved_CPPFLAGS"

    LIBS="$saved_LIBS"

    LDFLAGS="$saved_LDFLAGS"

  ])

  if test "x$ac_cv_jansson" = "xyes"; then

    AC_DEFINE(HAVE_JANSSON, 1, [Define if jansson is available])

  fi

])

dnl #  start of module specific part

APACHE_MODPATH_INIT(md)

dnl #  list of module object files

md_objs="dnl

md_acme.lo dnl

md_acme_acct.lo dnl

md_acme_authz.lo dnl

md_acme_drive.lo dnl

md_core.lo dnl

md_curl.lo dnl

md_crypt.lo dnl

md_http.lo dnl

md_json.lo dnl

md_jws.lo dnl

md_log.lo dnl

md_reg.lo dnl

md_store.lo dnl

md_store_fs.lo dnl

md_util.lo dnl

mod_md.lo dnl

mod_md_config.lo dnl

mod_md_os.lo dnl

"

# Ensure that other modules can pick up mod_md.h

APR_ADDTO(INCLUDES, [-I\$(top_srcdir)/$modpath_current])

dnl # hook module into the Autoconf mechanism (--enable-md)

APACHE_MODULE(md, [Managed Domain handling], $md_objs, , most, [

    APACHE_CHECK_OPENSSL

    if test "x$ac_cv_openssl" = "xno" ; then

        AC_MSG_WARN([libssl (or compatible) not found])

        enable_md=no

    fi

    APACHE_CHECK_JANSSON

    if test "x$ac_cv_jansson" != "xyes" ; then

        AC_MSG_WARN([libjansson not found])

        enable_md=no

    fi

    APACHE_CHECK_CURL

    if test "x$ac_cv_curl" != "xyes" ; then

        AC_MSG_WARN([libcurl not found])

        enable_md=no

    fi

    AC_CHECK_FUNCS([arc4random_buf], 

        [APR_ADDTO(MOD_CPPFLAGS, ["-DMD_HAVE_ARC4RANDOM"])], [])

])

dnl #  end of module specific part

APACHE_MODPATH_FINISH