initial import of merchant logic (FTBFS)

33 files changed, 7408 insertions, 0 deletions

diff --git a/AUTHORS b/AUTHORS
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--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,4 @@
+Sree Harsha Totakura <sreeharsha@totakura.in>
+Florian Dold
+Christian Grothoff
+Benedikt Mueller
diff --git a/COPYING b/COPYING
new file mode 100644
index 00000000..9b3e553b
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,510 @@
+Some of this code is DUAL-LICENSED.  If you use MHD without HTTPS/SSL
+support, you are free to choose between the LGPL and the eCos License
+(http://ecos.sourceware.org/license-overview.html).  If you compile
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diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/ChangeLog
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 00000000..ea5a667e
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,3 @@
+AM_CPPFLAGS = -I$(top_srcdir)/src/include
+SUBDIRS = src doc
+ACLOCAL_AMFLAGS = -I m4
diff --git a/NEWS b/NEWS
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/NEWS
diff --git a/README b/README
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/README
diff --git a/bootstrap b/bootstrap
new file mode 100755
index 00000000..4e7cc053
--- /dev/null
+++ b/bootstrap
@@ -0,0 +1,2 @@
+#!/bin/sh
+autoreconf -if
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 00000000..d013ab2e
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,154 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+AC_INIT([taler], [0.0.0], [taler-bug@gnunet.org])
+AC_CONFIG_SRCDIR([src/merchant/merchant.c])
+AC_CONFIG_HEADERS([taler_config.h])
+# support for non-recursive builds
+AM_INIT_AUTOMAKE([subdir-objects])
+
+# pretty build rules
+AM_SILENT_RULES([yes])
+
+AC_CONFIG_MACRO_DIR([m4])
+
+LT_INIT
+
+# Checks for programs.
+AC_PROG_CC
+
+CFLAGS="-Wall $CFLAGS"
+
+# Checks for header files.
+AC_CHECK_HEADERS([stdint.h stdlib.h string.h unistd.h])
+
+# Check for GNUnet's libgnunetutil.
+libgnunetutil=0
+AC_MSG_CHECKING([for libgnunetutil])
+AC_ARG_WITH(gnunet,
+            [AS_HELP_STRING([--with-gnunet=PFX], [base of GNUnet installation])],
+            [AC_MSG_RESULT([given as $with_gnunet])],
+            [AC_MSG_RESULT(not given)
+             with_gnunet=yes])
+AS_CASE([$with_gnunet],
+        [yes], [],
+        [no], [AC_MSG_ERROR([--with-gnunet is required])],
+        [LDFLAGS="-L$with_gnunet/lib $LDFLAGS"
+         CPPFLAGS="-I$with_gnunet/include $CPPFLAGS"])
+AC_CHECK_HEADERS([gnunet/platform.h gnunet/gnunet_util_lib.h],
+ [AC_CHECK_LIB([gnunetutil], [GNUNET_SCHEDULER_run], libgnunetutil=1)],
+  [], [#ifdef HAVE_GNUNET_PLATFORM_H
+        #include <gnunet/platform.h>
+       #endif])
+AS_IF([test $libgnunetutil != 1],
+  [AC_MSG_ERROR([[
+***
+*** You need libgnunetutil to build this program.
+*** This library is part of GNUnet, available at
+***   https://gnunet.org
+*** ]])])
+
+
+# check for libmicrohttpd
+microhttpd=0
+AC_MSG_CHECKING([for microhttpd])
+AC_ARG_WITH([microhttpd],
+            [AS_HELP_STRING([--with-microhttpd=PFX], [base of microhttpd installation])],
+            [AC_MSG_RESULT([given as $with_microhttpd])],
+            [AC_MSG_RESULT([not given])
+             with_microhttpd=yes])
+AS_CASE([$with_microhttpd],
+        [yes], [],
+        [no], [AC_MSG_ERROR([--with-microhttpd is required])],
+        [LDFLAGS="-L$with_microhttpd/lib $LDFLAGS"
+         CPPFLAGS="-I$with_microhttpd/include $CPPFLAGS"])
+AC_CHECK_LIB(microhttpd,MHD_start_daemon,
+  [AC_CHECK_HEADER([microhttpd.h],[microhttpd=1])])
+AS_IF([test $microhttpd = 0],
+  [AC_MSG_ERROR([[
+***
+*** You need libmicrohttpd to build this program.
+*** ]])])
+
+
+# check for libpq (postgresql)
+AX_LIB_POSTGRESQL([9.3])
+AS_IF([test ! "$found_postgresql" = "yes"],
+  [AC_MSG_ERROR([[
+***
+*** You need postgresql / libpq to build this program.
+*** ]])])
+
+
+# check for libjansson (Jansson JSON library)
+jansson=0
+AC_MSG_CHECKING([for jansson])
+AC_ARG_WITH([jansson],
+            [AS_HELP_STRING([--with-jansson=PFX], [base of jansson installation])],
+            [AC_MSG_RESULT([given as $with_jansson])],
+            [AC_MSG_RESULT([not given])
+             with_jansson=yes])
+AS_CASE([$with_jansson],
+        [yes], [],
+        [no], [AC_MSG_ERROR([--with-jansson is required])],
+        [LDFLAGS="-L$with_jansson/lib $LDFLAGS"
+         CPPFLAGS="-I$with_jansson/include $CPPFLAGS"])
+AC_CHECK_LIB(jansson,json_pack,
+  [AC_CHECK_HEADER([jansson.h],[jansson=1])])
+AS_IF([test $jansson = 0],
+  [AC_MSG_ERROR([[
+***
+*** You need libjansson to build this program.
+*** ]])])
+
+# check for libgnurl
+LIBGNURL_CHECK_CONFIG([], [7.34.0], [gnurl=1], [gnurl=0])
+if test "$gnurl" = 1
+then
+        AM_CONDITIONAL(HAVE_LIBGNURL, true)
+        AC_DEFINE([HAVE_LIBGNURL],[1],[Have libgnurl])
+else
+        AM_CONDITIONAL(HAVE_LIBGNURL, false)
+fi
+AS_IF([test $gnurl = 0],
+  [AC_MSG_ERROR([[
+***
+*** You need libgnurl to build this program.
+*** ]])])
+
+# Require minimum libgcrypt version
+need_libgcrypt_version=1.6.1
+AC_DEFINE_UNQUOTED([NEED_LIBGCRYPT_VERSION], ["$need_libgcrypt_version"],
+                                             [minimum version of libgcrypt required])
+AM_PATH_LIBGCRYPT([$need_libgcrypt_version])
+
+# logging
+extra_logging=0
+AC_ARG_ENABLE([logging],
+   AS_HELP_STRING([--enable-logging@<:@=value@:>@],[Enable logging calls. Possible values: yes,no,verbose ('yes' is the default)]),
+   [AS_IF([test "x$enableval" = "xyes"], [],
+          [test "x$enableval" = "xno"], [AC_DEFINE([GNUNET_CULL_LOGGING],[],[Define to cull all logging calls])],
+          [test "x$enableval" = "xverbose"], [extra_logging=1]
+          [test "x$enableval" = "xveryverbose"], [extra_logging=2])
+   ], [])
+AC_DEFINE_UNQUOTED([GNUNET_EXTRA_LOGGING],[$extra_logging],[1 if extra logging is enabled, 2 for very verbose extra logging, 0 otherwise])
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT32_T
+AC_TYPE_UINT64_T
+AC_TYPE_INTMAX_T
+AC_TYPE_UINTMAX_T
+
+# Checks for library functions.
+AC_CHECK_FUNCS([strdup])
+
+AC_CONFIG_FILES([Makefile
+                 doc/Makefile
+                 src/Makefile
+                 src/include/Makefile
+                 src/merchant/Makefile])
+AC_OUTPUT
diff --git a/doc/Makefile.am b/doc/Makefile.am
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/doc/Makefile.am
diff --git a/m4/ax_lib_postgresql.m4 b/m4/ax_lib_postgresql.m4
new file mode 100644
index 00000000..e81c0996
--- /dev/null
+++ b/m4/ax_lib_postgresql.m4
@@ -0,0 +1,156 @@
+# ===========================================================================
+#     http://www.gnu.org/software/autoconf-archive/ax_lib_postgresql.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_LIB_POSTGRESQL([MINIMUM-VERSION])
+#
+# DESCRIPTION
+#
+#   This macro provides tests of availability of PostgreSQL 'libpq' library
+#   of particular version or newer.
+#
+#   AX_LIB_POSTGRESQL macro takes only one argument which is optional. If
+#   there is no required version passed, then macro does not run version
+#   test.
+#
+#   The --with-postgresql option takes one of three possible values:
+#
+#   no - do not check for PostgreSQL client library
+#
+#   yes - do check for PostgreSQL library in standard locations (pg_config
+#   should be in the PATH)
+#
+#   path - complete path to pg_config utility, use this option if pg_config
+#   can't be found in the PATH
+#
+#   This macro calls:
+#
+#     AC_SUBST(POSTGRESQL_CPPFLAGS)
+#     AC_SUBST(POSTGRESQL_LDFLAGS)
+#     AC_SUBST(POSTGRESQL_VERSION)
+#
+#   And sets:
+#
+#     HAVE_POSTGRESQL
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Mateusz Loskot <mateusz@loskot.net>
+#   Copyright (c) 2014 Sree Harsha Totakura <sreeharsha@totakura.in>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 9
+
+AC_DEFUN([AX_LIB_POSTGRESQL],
+[
+    AC_ARG_WITH([postgresql],
+        AS_HELP_STRING([--with-postgresql=@<:@ARG@:>@],
+            [use PostgreSQL library @<:@default=yes@:>@, optionally specify path to pg_config]
+        ),
+        [
+        if test "$withval" = "no"; then
+            want_postgresql="no"
+        elif test "$withval" = "yes"; then
+            want_postgresql="yes"
+        else
+            want_postgresql="yes"
+            PG_CONFIG="$withval"
+        fi
+        ],
+        [want_postgresql="yes"]
+    )
+
+    POSTGRESQL_CPPFLAGS=""
+    POSTGRESQL_LDFLAGS=""
+    POSTGRESQL_VERSION=""
+
+    dnl
+    dnl Check PostgreSQL libraries (libpq)
+    dnl
+
+    if test "$want_postgresql" = "yes"; then
+
+        if test -z "$PG_CONFIG" -o test; then
+            AC_PATH_PROG([PG_CONFIG], [pg_config], [])
+        fi
+
+        if test ! -x "$PG_CONFIG"; then
+            AC_MSG_ERROR([$PG_CONFIG does not exist or it is not an exectuable file])
+            PG_CONFIG="no"
+            found_postgresql="no"
+        fi
+
+        if test "$PG_CONFIG" != "no"; then
+            AC_MSG_CHECKING([for PostgreSQL libraries])
+
+            POSTGRESQL_CPPFLAGS="-I`$PG_CONFIG --includedir`"
+            POSTGRESQL_LDFLAGS="-L`$PG_CONFIG --libdir`"
+
+            POSTGRESQL_VERSION=`$PG_CONFIG --version | sed -e 's#PostgreSQL ##'`
+
+            AC_DEFINE([HAVE_POSTGRESQL], [1],
+                [Define to 1 if PostgreSQL libraries are available])
+
+            found_postgresql="yes"
+            AC_MSG_RESULT([yes])
+        else
+            found_postgresql="no"
+            AC_MSG_RESULT([no])
+        fi
+    fi
+
+    dnl
+    dnl Check if required version of PostgreSQL is available
+    dnl
+
+
+    postgresql_version_req=ifelse([$1], [], [], [$1])
+
+    if test "$found_postgresql" = "yes" -a -n "$postgresql_version_req"; then
+
+        AC_MSG_CHECKING([if PostgreSQL version is >= $postgresql_version_req])
+
+        dnl Decompose required version string of PostgreSQL
+        dnl and calculate its number representation
+        postgresql_version_req_major=`expr $postgresql_version_req : '\([[0-9]]*\)'`
+        postgresql_version_req_minor=`expr $postgresql_version_req : '[[0-9]]*\.\([[0-9]]*\)'`
+        postgresql_version_req_micro=`expr $postgresql_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+        if test "x$postgresql_version_req_micro" = "x"; then
+            postgresql_version_req_micro="0"
+        fi
+
+        postgresql_version_req_number=`expr $postgresql_version_req_major \* 1000000 \
+                                   \+ $postgresql_version_req_minor \* 1000 \
+                                   \+ $postgresql_version_req_micro`
+
+        dnl Decompose version string of installed PostgreSQL
+        dnl and calculate its number representation
+        postgresql_version_major=`expr $POSTGRESQL_VERSION : '\([[0-9]]*\)'`
+        postgresql_version_minor=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.\([[0-9]]*\)'`
+        postgresql_version_micro=`expr $POSTGRESQL_VERSION : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
+        if test "x$postgresql_version_micro" = "x"; then
+            postgresql_version_micro="0"
+        fi
+
+        postgresql_version_number=`expr $postgresql_version_major \* 1000000 \
+                                   \+ $postgresql_version_minor \* 1000 \
+                                   \+ $postgresql_version_micro`
+
+        postgresql_version_check=`expr $postgresql_version_number \>\= $postgresql_version_req_number`
+        if test "$postgresql_version_check" = "1"; then
+            AC_MSG_RESULT([yes])
+        else
+            AC_MSG_RESULT([no])
+        fi
+    fi
+
+    AC_SUBST([POSTGRESQL_VERSION])
+    AC_SUBST([POSTGRESQL_CPPFLAGS])
+    AC_SUBST([POSTGRESQL_LDFLAGS])
+])
diff --git a/m4/libgnurl.m4 b/m4/libgnurl.m4
new file mode 100644
index 00000000..69aa1660
--- /dev/null
+++ b/m4/libgnurl.m4
@@ -0,0 +1,250 @@
+# LIBGNURL_CHECK_CONFIG ([DEFAULT-ACTION], [MINIMUM-VERSION],
+#                       [ACTION-IF-YES], [ACTION-IF-NO])
+# ----------------------------------------------------------
+#      David Shaw <dshaw@jabberwocky.com>   May-09-2006
+#
+# Checks for libgnurl.  DEFAULT-ACTION is the string yes or no to
+# specify whether to default to --with-libgnurl or --without-libgnurl.
+# If not supplied, DEFAULT-ACTION is yes.  MINIMUM-VERSION is the
+# minimum version of libgnurl to accept.  Pass the version as a regular
+# version number like 7.10.1. If not supplied, any version is
+# accepted.  ACTION-IF-YES is a list of shell commands to run if
+# libgnurl was successfully found and passed the various tests.
+# ACTION-IF-NO is a list of shell commands that are run otherwise.
+# Note that using --without-libgnurl does run ACTION-IF-NO.
+#
+# This macro #defines HAVE_LIBGNURL if a working libgnurl setup is
+# found, and sets @LIBGNURL@ and @LIBGNURL_CPPFLAGS@ to the necessary
+# values.  Other useful defines are LIBGNURL_FEATURE_xxx where xxx are
+# the various features supported by libgnurl, and LIBGNURL_PROTOCOL_yyy
+# where yyy are the various protocols supported by libgnurl.  Both xxx
+# and yyy are capitalized.  See the list of AH_TEMPLATEs at the top of
+# the macro for the complete list of possible defines.  Shell
+# variables $libgnurl_feature_xxx and $libgnurl_protocol_yyy are also
+# defined to 'yes' for those features and protocols that were found.
+# Note that xxx and yyy keep the same capitalization as in the
+# gnurl-config list (e.g. it's "HTTP" and not "http").
+#
+# Users may override the detected values by doing something like:
+# LIBGNURL="-lgnurl" LIBGNURL_CPPFLAGS="-I/usr/myinclude" ./configure
+#
+# For the sake of sanity, this macro assumes that any libgnurl that is
+# found is after version 7.7.2, the first version that included the
+# gnurl-config script.  Note that it is very important for people
+# packaging binary versions of libgnurl to include this script!
+# Without gnurl-config, we can only guess what protocols are available,
+# or use gnurl_version_info to figure it out at runtime.
+
+AC_DEFUN([LIBGNURL_CHECK_CONFIG],
+[
+  AH_TEMPLATE([LIBGNURL_FEATURE_SSL],[Defined if libgnurl supports SSL])
+  AH_TEMPLATE([LIBGNURL_FEATURE_KRB4],[Defined if libgnurl supports KRB4])
+  AH_TEMPLATE([LIBGNURL_FEATURE_IPV6],[Defined if libgnurl supports IPv6])
+  AH_TEMPLATE([LIBGNURL_FEATURE_LIBZ],[Defined if libgnurl supports libz])
+  AH_TEMPLATE([LIBGNURL_FEATURE_ASYNCHDNS],[Defined if libgnurl supports AsynchDNS])
+  AH_TEMPLATE([LIBGNURL_FEATURE_IDN],[Defined if libgnurl supports IDN])
+  AH_TEMPLATE([LIBGNURL_FEATURE_SSPI],[Defined if libgnurl supports SSPI])
+  AH_TEMPLATE([LIBGNURL_FEATURE_NTLM],[Defined if libgnurl supports NTLM])
+
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTP],[Defined if libgnurl supports HTTP])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_HTTPS],[Defined if libgnurl supports HTTPS])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_FTP],[Defined if libgnurl supports FTP])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_FTPS],[Defined if libgnurl supports FTPS])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_FILE],[Defined if libgnurl supports FILE])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_TELNET],[Defined if libgnurl supports TELNET])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_LDAP],[Defined if libgnurl supports LDAP])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_DICT],[Defined if libgnurl supports DICT])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_TFTP],[Defined if libgnurl supports TFTP])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_RTSP],[Defined if libgnurl supports RTSP])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_POP3],[Defined if libgnurl supports POP3])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_IMAP],[Defined if libgnurl supports IMAP])
+  AH_TEMPLATE([LIBGNURL_PROTOCOL_SMTP],[Defined if libgnurl supports SMTP])
+
+  AC_ARG_WITH(libgnurl,
+     AC_HELP_STRING([--with-libgnurl=PREFIX],[look for the gnurl library in PREFIX/lib and headers in PREFIX/include]),
+     [_libgnurl_with=$withval],[_libgnurl_with=ifelse([$1],,[yes],[$1])])
+
+  if test "$_libgnurl_with" != "no" ; then
+
+     AC_PROG_AWK
+
+     _libgnurl_version_parse="eval $AWK '{split(\$NF,A,\".\"); X=256*256*A[[1]]+256*A[[2]]+A[[3]]; print X;}'"
+
+     _libgnurl_try_link=yes
+
+     if test -d "$_libgnurl_with" ; then
+        LIBGNURL_CPPFLAGS="-I$withval/include"
+        _libgnurl_ldflags="-L$withval/lib"
+        AC_PATH_PROG([_libgnurl_config],[gnurl-config],[],
+                     ["$withval/bin"])
+     else
+        AC_PATH_PROG([_libgnurl_config],[gnurl-config],[],[$PATH])
+     fi
+
+     if test x$_libgnurl_config != "x" ; then
+        AC_CACHE_CHECK([for the version of libgnurl],
+           [libgnurl_cv_lib_gnurl_version],
+           [libgnurl_cv_lib_gnurl_version=`$_libgnurl_config --version | $AWK '{print $[]2}'`])
+
+        _libgnurl_version=`echo $libgnurl_cv_lib_gnurl_version | $_libgnurl_version_parse`
+        _libgnurl_wanted=`echo ifelse([$2],,[0],[$2]) | $_libgnurl_version_parse`
+
+        if test $_libgnurl_wanted -gt 0 ; then
+           AC_CACHE_CHECK([for libgnurl >= version $2],
+              [libgnurl_cv_lib_version_ok],
+              [
+              if test $_libgnurl_version -ge $_libgnurl_wanted ; then
+                 libgnurl_cv_lib_version_ok=yes
+              else
+                 libgnurl_cv_lib_version_ok=no
+              fi
+              ])
+        fi
+
+        if test $_libgnurl_wanted -eq 0 || test x$libgnurl_cv_lib_version_ok = xyes ; then
+           if test x"$LIBGNURL_CPPFLAGS" = "x" ; then
+              LIBGNURL_CPPFLAGS=`$_libgnurl_config --cflags`
+           fi
+           if test x"$LIBGNURL" = "x" ; then
+              LIBGNURL=`$_libgnurl_config --libs`
+
+              # This is so silly, but Apple actually has a bug in their
+              # gnurl-config script.  Fixed in Tiger, but there are still
+              # lots of Panther installs around.
+              case "${host}" in
+                 powerpc-apple-darwin7*)
+                    LIBGNURL=`echo $LIBGNURL | sed -e 's|-arch i386||g'`
+                 ;;
+              esac
+           fi
+
+           # All gnurl-config scripts support --feature
+           _libgnurl_features=`$_libgnurl_config --feature`
+
+           # Is it modern enough to have --protocols? (7.12.4)
+           if test $_libgnurl_version -ge 461828 ; then
+              _libgnurl_protocols=`$_libgnurl_config --protocols`
+           fi
+        else
+           _libgnurl_try_link=no
+        fi
+
+        unset _libgnurl_wanted
+     fi
+
+     if test $_libgnurl_try_link = yes ; then
+
+        # we didn't find gnurl-config, so let's see if the user-supplied
+        # link line (or failing that, "-lgnurl") is enough.
+        LIBGNURL=${LIBGNURL-"$_libgnurl_ldflags -lgnurl"}
+
+        AC_CACHE_CHECK([whether libgnurl is usable],
+           [libgnurl_cv_lib_gnurl_usable],
+           [
+           _libgnurl_save_cppflags=$CPPFLAGS
+           CPPFLAGS="$LIBGNURL_CPPFLAGS $CPPFLAGS"
+           _libgnurl_save_libs=$LIBS
+           LIBS="$LIBGNURL $LIBS"
+
+           AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <curl/curl.h>],[
+/* Try and use a few common options to force a failure if we are
+   missing symbols or can't link. */
+int x;
+curl_easy_setopt(NULL,CURLOPT_URL,NULL);
+x=CURL_ERROR_SIZE;
+x=CURLOPT_WRITEFUNCTION;
+x=CURLOPT_FILE;
+x=CURLOPT_ERRORBUFFER;
+x=CURLOPT_STDERR;
+x=CURLOPT_VERBOSE;
+])],libgnurl_cv_lib_gnurl_usable=yes,libgnurl_cv_lib_gnurl_usable=no)
+
+           CPPFLAGS=$_libgnurl_save_cppflags
+           LIBS=$_libgnurl_save_libs
+           unset _libgnurl_save_cppflags
+           unset _libgnurl_save_libs
+           ])
+
+        if test $libgnurl_cv_lib_gnurl_usable = yes ; then
+
+           # Does gnurl_free() exist in this version of libgnurl?
+           # If not, fake it with free()
+
+           _libgnurl_save_cppflags=$CPPFLAGS
+           CPPFLAGS="$CPPFLAGS $LIBGNURL_CPPFLAGS"
+           _libgnurl_save_libs=$LIBS
+           LIBS="$LIBS $LIBGNURL"
+
+           AC_CHECK_FUNC(curl_free,,
+              AC_DEFINE(curl_free,free,
+                [Define curl_free() as free() if our version of gnurl lacks curl_free.]))
+
+           CPPFLAGS=$_libgnurl_save_cppflags
+           LIBS=$_libgnurl_save_libs
+           unset _libgnurl_save_cppflags
+           unset _libgnurl_save_libs
+
+           AC_DEFINE(HAVE_LIBGNURL,1,
+             [Define to 1 if you have a functional gnurl library.])
+           AC_SUBST(LIBGNURL_CPPFLAGS)
+           AC_SUBST(LIBGNURL)
+
+           for _libgnurl_feature in $_libgnurl_features ; do
+              AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_feature_$_libgnurl_feature),[1])
+              eval AS_TR_SH(libgnurl_feature_$_libgnurl_feature)=yes
+           done
+
+           if test "x$_libgnurl_protocols" = "x" ; then
+
+              # We don't have --protocols, so just assume that all
+              # protocols are available
+              _libgnurl_protocols="HTTP FTP FILE TELNET LDAP DICT TFTP"
+
+              if test x$libgnurl_feature_SSL = xyes ; then
+                 _libgnurl_protocols="$_libgnurl_protocols HTTPS"
+
+                 # FTPS wasn't standards-compliant until version
+                 # 7.11.0 (0x070b00 == 461568)
+                 if test $_libgnurl_version -ge 461568; then
+                    _libgnurl_protocols="$_libgnurl_protocols FTPS"
+                 fi
+              fi
+
+              # RTSP, IMAP, POP3 and SMTP were added in
+              # 7.20.0 (0x071400 == 463872)
+              if test $_libgnurl_version -ge 463872; then
+                 _libgnurl_protocols="$_libgnurl_protocols RTSP IMAP POP3 SMTP"
+              fi
+           fi
+
+           for _libgnurl_protocol in $_libgnurl_protocols ; do
+              AC_DEFINE_UNQUOTED(AS_TR_CPP(libgnurl_protocol_$_libgnurl_protocol),[1])
+              eval AS_TR_SH(libgnurl_protocol_$_libgnurl_protocol)=yes
+           done
+        else
+           unset LIBGNURL
+           unset LIBGNURL_CPPFLAGS
+        fi
+     fi
+
+     unset _libgnurl_try_link
+     unset _libgnurl_version_parse
+     unset _libgnurl_config
+     unset _libgnurl_feature
+     unset _libgnurl_features
+     unset _libgnurl_protocol
+     unset _libgnurl_protocols
+     unset _libgnurl_version
+     unset _libgnurl_ldflags
+  fi
+
+  if test x$_libgnurl_with = xno || test x$libgnurl_cv_lib_gnurl_usable != xyes ; then
+     # This is the IF-NO path
+     ifelse([$4],,:,[$4])
+  else
+     # This is the IF-YES path
+     ifelse([$3],,:,[$3])
+  fi
+
+  unset _libgnurl_with
+])dnl
diff --git a/src/.gitignore b/src/.gitignore
new file mode 100644
index 00000000..90ea1a04
--- /dev/null
+++ b/src/.gitignore
@@ -0,0 +1,9 @@
+*.o
+*.deps
+*.libs
+*.lo
+*.la
+*.log
+*.trs
+*/__pycache__
+test-*
\ No newline at end of file
diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 00000000..e8165ad1
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,614 @@
+# Makefile.in generated by automake 1.14.1 from Makefile.am.
+# src/Makefile.  Generated from Makefile.in by configure.
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+am__is_gnu_make = test -n '$(MAKEFILE_LIST)' && test -n '$(MAKELEVEL)'
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
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diff --git a/src/include/platform.h b/src/include/platform.h
new file mode 100644
index 00000000..4cba7abf
--- /dev/null
+++ b/src/include/platform.h
@@ -0,0 +1,56 @@
+/*
+  This file is part of TALER
+  (C) 2014 Chrisitan Grothoff (and other contributing authors)
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file include/platform.h
+ * @brief This file contains the includes and definitions which are used by the
+ *        rest of the modules
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in> 
+ */
+
+#ifndef PLATFORM_H_
+#define PLATFORM_H_
+
+/* Include our configuration header */
+#ifndef HAVE_USED_CONFIG_H
+# define HAVE_USED_CONFIG_H
+# ifdef HAVE_CONFIG_H
+#  include "taler_config.h"
+# endif
+#endif
+
+
+#if (GNUNET_EXTRA_LOGGING >= 1)
+#define VERBOSE(cmd) cmd
+#else
+#define VERBOSE(cmd) do { break; }while(0)
+#endif
+
+/* Include the features available for GNU source */
+#define _GNU_SOURCE
+
+/* Include GNUnet's platform file */
+#include <gnunet/platform.h>
+
+/* Do not use shortcuts for gcrypt mpi */
+#define GCRYPT_NO_MPI_MACROS 1
+
+/* Do not use deprecated functions from gcrypt */
+#define GCRYPT_NO_DEPRECATED 1
+
+#endif  /* PLATFORM_H_ */
+
+/* end of platform.h */
diff --git a/src/merchant/.gitignore b/src/merchant/.gitignore
new file mode 100644
index 00000000..ebe41680
--- /dev/null
+++ b/src/merchant/.gitignore
@@ -0,0 +1 @@
+taler-merchant-*
diff --git a/src/merchant/Makefile b/src/merchant/Makefile
new file mode 100644
index 00000000..bbc16e7b
--- /dev/null
+++ b/src/merchant/Makefile
@@ -0,0 +1,731 @@
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+        $(AM_LDFLAGS) $(LDFLAGS) -o $@
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+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(taler_merchant_dbinit_SOURCES) \
+        $(taler_merchant_serve_SOURCES) $(test_merchant_SOURCES) \
+        $(test_merchant_db_SOURCES)
+DIST_SOURCES = $(taler_merchant_dbinit_SOURCES) \
+        $(taler_merchant_serve_SOURCES) $(test_merchant_SOURCES) \
+        $(test_merchant_db_SOURCES)
+am__can_run_installinfo = \
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+    n|no|NO) false;; \
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+  { items[$$0] = 1; nonempty = 1; } \
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+'
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+# e.g., the same source file might be shared among _SOURCES variables
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+  taler_merchant_dbinit.c \
+  $(MERCHANT_DB)
+
+taler_merchant_dbinit_LDADD = \
+  -lpq \
+  -lgnunetutil \
+  -ltalerutil \
+  -lgnunetpostgres
+
+taler_merchant_dbinit_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS)
+
+test_merchant_SOURCES = \
+  merchant.c \
+  test_merchant.c
+
+test_merchant_LDADD = \
+  -ltalerutil \
+  -lgnunetutil
+
+test_merchant_db_SOURCES = \
+  $(MERCHANT_DB) \
+  test_merchant_db.c
+
+test_merchant_db_LDADD = \
+  -ltalerutil \
+  -lgnunetutil \
+  -lgnunetpostgres \
+  -lpq
+
+taler_merchant_serve_SOURCES = \
+  taler_merchant_serve.c \
+  merchant.c merchant.h \
+  $(MERCHANT_DB)
+
+taler_merchant_serve_LDADD = \
+  -lpq \
+  -lgnunetutil \
+  -lgnunetpostgres \
+  -lmicrohttpd \
+  -ltalermintapi \
+  -ltalerutil \
+  -ljansson
+
+taler_merchant_serve_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS)
+
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+
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+        $(am__cd) $(top_srcdir) && \
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+          sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+              -e 's/$$/$(EXEEXT)/' \
+        `; \
+        test -n "$$list" || exit 0; \
+        echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
+        cd "$(DESTDIR)$(bindir)" && rm -f $$files
+
+clean-binPROGRAMS:
+        @list='$(bin_PROGRAMS)'; test -n "$$list" || exit 0; \
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+        rm -f $$list || exit $$?; \
+        test -n "$(EXEEXT)" || exit 0; \
+        list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
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+
+clean-checkPROGRAMS:
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+
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+        @rm -f taler-merchant-dbinit$(EXEEXT)
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+        @rm -f taler-merchant-serve$(EXEEXT)
+        $(AM_V_CCLD)$(taler_merchant_serve_LINK) $(taler_merchant_serve_OBJECTS) $(taler_merchant_serve_LDADD) $(LIBS)
+
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+        @rm -f test-merchant$(EXEEXT)
+        $(AM_V_CCLD)$(LINK) $(test_merchant_OBJECTS) $(test_merchant_LDADD) $(LIBS)
+
+test-merchant-db$(EXEEXT): $(test_merchant_db_OBJECTS) $(test_merchant_db_DEPENDENCIES) $(EXTRA_test_merchant_db_DEPENDENCIES) 
+        @rm -f test-merchant-db$(EXEEXT)
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+
+mostlyclean-compile:
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+
+distclean-compile:
+        -rm -f *.tab.c
+
+include ./$(DEPDIR)/merchant.Po
+include ./$(DEPDIR)/merchant_db.Po
+include ./$(DEPDIR)/taler_merchant_dbinit.Po
+include ./$(DEPDIR)/taler_merchant_serve.Po
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+include ./$(DEPDIR)/test_merchant_db.Po
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+        distclean-tags distdir dvi dvi-am html html-am info info-am \
+        install install-am install-binPROGRAMS install-data \
+        install-data-am install-dvi install-dvi-am install-exec \
+        install-exec-am install-html install-html-am install-info \
+        install-info-am install-man install-pdf install-pdf-am \
+        install-ps install-ps-am install-strip installcheck \
+        installcheck-am installdirs maintainer-clean \
+        maintainer-clean-generic mostlyclean mostlyclean-compile \
+        mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+        tags tags-am uninstall uninstall-am uninstall-binPROGRAMS
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/merchant/Makefile.am b/src/merchant/Makefile.am
new file mode 100644
index 00000000..701b3ee8
--- /dev/null
+++ b/src/merchant/Makefile.am
@@ -0,0 +1,52 @@
+AM_CPPFLAGS = -I$(top_srcdir)/src/include $(POSTGRESQL_CPPFLAGS)
+
+MERCHANT_DB = merchant_db.c merchant_db.h
+bin_PROGRAMS = \
+  taler-merchant-dbinit \
+  taler-merchant-serve
+
+taler_merchant_dbinit_SOURCES = \
+  taler_merchant_dbinit.c \
+  $(MERCHANT_DB)
+taler_merchant_dbinit_LDADD = \
+  -lpq \
+  -lgnunetutil \
+  -ltalerutil \
+  -lgnunetpostgres
+taler_merchant_dbinit_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS)
+
+check_PROGRAMS = \
+  test-merchant \
+  test-merchant-db
+
+test_merchant_SOURCES = \
+  merchant.c \
+  test_merchant.c
+test_merchant_LDADD = \
+  -ltalerutil \
+  -lgnunetutil
+
+test_merchant_db_SOURCES = \
+  $(MERCHANT_DB) \
+  test_merchant_db.c
+test_merchant_db_LDADD = \
+  -ltalerutil \
+  -lgnunetutil \
+  -lgnunetpostgres \
+  -lpq
+
+taler_merchant_serve_SOURCES = \
+  taler_merchant_serve.c \
+  merchant.c merchant.h \
+  $(MERCHANT_DB)
+taler_merchant_serve_LDADD = \
+  -lpq \
+  -lgnunetutil \
+  -lgnunetpostgres \
+  -lmicrohttpd \
+  -ltalermintapi \
+  -ltalerutil \
+  -ljansson
+taler_merchant_serve_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS)
diff --git a/src/merchant/Makefile.in b/src/merchant/Makefile.in
new file mode 100644
index 00000000..33fcb832
--- /dev/null
+++ b/src/merchant/Makefile.in
@@ -0,0 +1,731 @@
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+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
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