Add glib2 dependency to support IDN

Change-Id: Ie330340da408b1cf57fca5c30c0f7dac88d85eb7
Signed-off-by: Seonah Moon <seonah1.moon@samsung.com>

4 files changed, 144 insertions, 2 deletions

diff --git a/configure.ac b/configure.ac
index 1e76c4918..417ba2047 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2953,6 +2953,134 @@ dnl Let's hope this split URL remains working:
 dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \
 dnl genprogc/thread_quick_ref.htm
 
+dnl **********************************************************************
+dnl Check for GLIB-2.0 (IDN support)
+dnl **********************************************************************
+
+AC_MSG_CHECKING([whether to build with glib-2.0])
+OPT_IDN="default"
+AC_ARG_WITH(glib-2.0,
+AC_HELP_STRING([--with-glib2=PATH],[Enable glib-2.0 usage])
+AC_HELP_STRING([--without-glib2],[Disable glib-2.0 usage]),
+  [OPT_IDN=$withval])
+case "$OPT_IDN" in
+  no)
+    dnl --without-glib2 option used
+    want_idn="no"
+    AC_MSG_RESULT([no])
+    ;;
+  default)
+    dnl configure option not specified
+    want_idn="yes"
+    want_idn_path="default"
+    AC_MSG_RESULT([(assumed) yes])
+    ;;
+  yes)
+    dnl --with-glib2 option used without path
+    want_idn="yes"
+    want_idn_path="default"
+    AC_MSG_RESULT([yes])
+    ;;
+  *)
+    dnl --with-glib2 option used with path
+    want_idn="yes"
+    want_idn_path="$withval"
+    AC_MSG_RESULT([yes ($withval)])
+    ;;
+esac
+
+if test "$want_idn" = "yes"; then
+  dnl idn library support has been requested
+  clean_CPPFLAGS="$CPPFLAGS"
+  clean_LDFLAGS="$LDFLAGS"
+  clean_LIBS="$LIBS"
+  PKGCONFIG="no"
+  #
+  if test "$want_idn_path" != "default"; then
+    dnl path has been specified
+    IDN_PCDIR="$want_idn_path/lib$libsuff/pkgconfig"
+    CURL_CHECK_PKGCONFIG(glib-2.0, [$IDN_PCDIR])
+    if test "$PKGCONFIG" != "no"; then
+      IDN_LIBS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+        $PKGCONFIG --libs-only-l glib-2.0 2>/dev/null`
+      IDN_LDFLAGS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+        $PKGCONFIG --libs-only-L glib-2.0 2>/dev/null`
+      IDN_CPPFLAGS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+        $PKGCONFIG --cflags-only-I glib-2.0 2>/dev/null`
+      IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/-L//'`
+    else
+      dnl pkg-config not available or provides no info
+      IDN_LIBS="-lglib-2.0"
+      IDN_LDFLAGS="-L$want_idn_path/lib$libsuff"
+      IDN_CPPFLAGS="-I$want_idn_path/include"
+      IDN_DIR="$want_idn_path/lib$libsuff"
+    fi
+  else
+    dnl path not specified
+    CURL_CHECK_PKGCONFIG(glib-2.0)
+    if test "$PKGCONFIG" != "no"; then
+      IDN_LIBS=`$PKGCONFIG --libs-only-l glib-2.0 2>/dev/null`
+      IDN_LDFLAGS=`$PKGCONFIG --libs-only-L glib-2.0 2>/dev/null`
+      IDN_CPPFLAGS=`$PKGCONFIG --cflags-only-I glib-2.0 2>/dev/null`
+      IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/-L//'`
+    else
+      dnl pkg-config not available or provides no info
+      IDN_LIBS="-lglib-2.0"
+    fi
+  fi
+  #
+  if test "$PKGCONFIG" != "no"; then
+    AC_MSG_NOTICE([pkg-config: IDN_LIBS: "$IDN_LIBS"])
+    AC_MSG_NOTICE([pkg-config: IDN_LDFLAGS: "$IDN_LDFLAGS"])
+    AC_MSG_NOTICE([pkg-config: IDN_CPPFLAGS: "$IDN_CPPFLAGS"])
+    AC_MSG_NOTICE([pkg-config: IDN_DIR: "$IDN_DIR"])
+  else
+    AC_MSG_NOTICE([IDN_LIBS: "$IDN_LIBS"])
+    AC_MSG_NOTICE([IDN_LDFLAGS: "$IDN_LDFLAGS"])
+    AC_MSG_NOTICE([IDN_CPPFLAGS: "$IDN_CPPFLAGS"])
+    AC_MSG_NOTICE([IDN_DIR: "$IDN_DIR"])
+  fi
+  #
+  CPPFLAGS="$IDN_CPPFLAGS $CPPFLAGS"
+  LDFLAGS="$IDN_LDFLAGS $LDFLAGS"
+  LIBS="$IDN_LIBS $LIBS"
+  #
+  AC_MSG_CHECKING([if g_hostname_to_ascii can be linked])
+  AC_LINK_IFELSE([
+    AC_LANG_FUNC_LINK_TRY([g_hostname_to_ascii])
+  ],[
+    AC_MSG_RESULT([yes])
+    tst_links_glib2="yes"
+  ],[
+    AC_MSG_RESULT([no])
+    tst_links_glib2="no"
+  ])
+  #
+  if test "$tst_links_glib2" = "yes"; then
+    AC_DEFINE(USE_GLIB2_HOSTNAME, 1, [Define to 1 if you have the `glib-2.0' library (-lglib-2.0).])
+    dnl different versions of libidn have different setups of these:
+
+    AC_SUBST([IDN_ENABLED], [1])
+    curl_idn_msg="enabled (glib-2.0)"
+    if test -n "$IDN_DIR" -a "x$cross_compiling" != "xyes"; then
+      LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$IDN_DIR"
+      export LD_LIBRARY_PATH
+      AC_MSG_NOTICE([Added $IDN_DIR to LD_LIBRARY_PATH])
+    fi
+  else
+    AC_MSG_WARN([Cannot find libraries for IDN support: IDN disabled])
+    CPPFLAGS="$clean_CPPFLAGS"
+    LDFLAGS="$clean_LDFLAGS"
+    LIBS="$clean_LIBS"
+  fi
+
+fi
+
+dnl Let's hope this split URL remains working:
+dnl http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixprggd/ \
+dnl genprogc/thread_quick_ref.htm
+
+
 
 dnl **********************************************************************
 dnl Check for nghttp2
diff --git a/lib/curl_config.h.in b/lib/curl_config.h.in
index 60e9d2381..21bf76d74 100644
--- a/lib/curl_config.h.in
+++ b/lib/curl_config.h.in
@@ -921,6 +921,9 @@
 /* to enable Apple OS native SSL/TLS support */
 #undef USE_DARWINSSL
 
+/* Define to 1 if you have the `glib-2.0' library (-lglib-2.0). */
+#undef USE_GLIB2_HOSTNAME
+
 /* if GnuTLS is enabled */
 #undef USE_GNUTLS
 
diff --git a/lib/url.c b/lib/url.c
index 328256643..8692e6895 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -65,6 +65,8 @@
 #elif defined(USE_WIN32_IDN)
 /* prototype for curl_win32_idn_to_ascii() */
 bool curl_win32_idn_to_ascii(const char *in, char **out);
+#elif defined(USE_GLIB2_HOSTNAME)
+#include <glib.h>
 #endif  /* USE_LIBIDN2 */
 
 #include "urldata.h"
@@ -4072,6 +4074,15 @@ static void fix_hostname(struct connectdata *conn, struct hostname *host)
     }
     else
       infof(data, "Failed to convert %s to ACE;\n", host->name);
+#elif defined(USE_GLIB2_HOSTNAME)
+    gchar *ace_hostname = NULL;
+    ace_hostname = g_hostname_to_ascii(host->name);
+    if(ace_hostname) {
+      host->encalloc = (char *)ace_hostname;
+      host->name = host->encalloc;
+    }
+    else
+      infof(data, "Failed to convert %s to ACE;\n", host->name);
 #else
     infof(data, "IDN support not present, can't parse Unicode domains\n");
 #endif
diff --git a/packaging/curl.spec b/packaging/curl.spec
index dc405a263..fc16745e7 100644
--- a/packaging/curl.spec
+++ b/packaging/curl.spec
@@ -9,8 +9,8 @@ URL:        http://curl.haxx.se/
 Source0:    %{name}-%{version}.tar.gz
 Source1001:     %{name}.manifest
 
+BuildRequires:  pkgconfig(glib-2.0)
 BuildRequires:  pkgconfig(openssl)
-BuildRequires:  pkgconfig(libidn)
 BuildRequires:  pkgconfig(zlib)
 BuildRequires:  pkgconfig(libcares)
 BuildRequires:	pkgconfig(libnghttp2)
@@ -70,7 +70,7 @@ CFLAGS+=" -DTIZEN_TV_EXT"
 %endif
 --with-ca-path==/etc/ssl/certs \
 --with-ca-bundle=/etc/ssl/ca-bundle.pem \
---with-libidn \
+--with-glib2 \
 --with-lber-lib=lber \
 --enable-manual --enable-versioned-symbols --enable-ares --enable-debug --enable-curldebug \
 --disable-static \