Provide python bindings for the HBAC evaluator library

Fixes for python HBAC bindings

These changes were proposed during a review:
 * Change the signature of str_concat_sequence() to const char *
 * use a getsetter for HbacRule.enabled to allow string true/false and
   integer 1/0 in addition to bool
 * fix a minor memory leak (HbacRequest.rule_name)
 * remove overzealous discard consts

Fix python HBAC bindings for python <= 2.4

Several parts of the HBAC python bindings did not work with old Python
versions, such as the one shipped in RHEL5.

The changes include:
* a compatibility wrapper around python set object
* PyModule_AddIntMacro compat macro
* Py_ssize_t compat definition
* Do not use PyUnicode_FromFormat
* several function prototypes and structures used to have "char
  arguments where they have "const char *" in recent versions.
  This caused compilation warnings this patch mitigates by using
  the discard_const hack on python 2.4

Remove dead code from python HBAC bindings

https://fedorahosted.org/sssd/ticket/935

Handle allocation error in python HBAC bindings

https://fedorahosted.org/sssd/ticket/934

HBAC rule validation Python bindings

https://fedorahosted.org/sssd/ticket/943

1 files changed, 16 insertions, 1 deletions

diff --git a/contrib/sssd.spec.in b/contrib/sssd.spec.in
index db0ecb3f4..291029b11 100644
--- a/contrib/sssd.spec.in
+++ b/contrib/sssd.spec.in
@@ -124,6 +124,16 @@ Requires: libipa_hbac = %{version}-%{release}
 %description -n libipa_hbac-devel
 Utility library to validate FreeIPA HBAC rules for authorization requests
 
+%package -n libipa_hbac-python
+Summary: Python bindings for the FreeIPA HBAC Evaluator library
+Group: Development/Libraries
+License: LGPLv3+
+Requires: libipa_hbac = %{version}-%{release}
+
+%description -n libipa_hbac-python
+The libipa_hbac-python contains the bindings so that libipa_hbac can be
+used by Python applications.
+
 %prep
 %setup -q
 
@@ -179,7 +189,8 @@ rm -f \
     $RPM_BUILD_ROOT/%{_libdir}/sssd/libsss_simple.la \
     $RPM_BUILD_ROOT/%{_libdir}/krb5/plugins/libkrb5/sssd_krb5_locator_plugin.la \
     $RPM_BUILD_ROOT/%{_libdir}/libipa_hbac.la \
-    $RPM_BUILD_ROOT/%{python_sitearch}/pysss.la
+    $RPM_BUILD_ROOT/%{python_sitearch}/pysss.la \
+    $RPM_BUILD_ROOT/%{python_sitearch}/pyhbac.la
 
 # Older versions of rpmbuild can only handle one -f option
 # So we need to append to the sssd.lang file
@@ -264,6 +275,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/libipa_hbac.so
 %{_libdir}/pkgconfig/ipa_hbac.pc
 
+%files -n libipa_hbac-python
+%defattr(-,root,root,-)
+%{python_sitearch}/pyhbac.so
+
 %post
 /sbin/ldconfig
 /sbin/chkconfig --add %{servicename}