[PATCH] sepolicy: port to dnf4 python API

[Petr Lautrbach <lautrbach@xxxxxxxxxx>]

yum module is not available since RHEL 7.

Drop -systemd related code as it's obsoleted these days - only 2
packages ship their .service in -systemd subpackage

Signed-off-by: Petr Lautrbach <lautrbach@xxxxxxxxxx>
---
 python/sepolicy/sepolicy/generate.py | 38 ++++++++++++----------------
 1 file changed, 16 insertions(+), 22 deletions(-)

diff --git a/python/sepolicy/sepolicy/generate.py b/python/sepolicy/sepolicy/generate.py
index b6df3e91160b..5aa71357f6a9 100644
--- a/python/sepolicy/sepolicy/generate.py
+++ b/python/sepolicy/sepolicy/generate.py
@@ -1262,13 +1262,20 @@ allow %s_t %s_t:%s_socket name_%s;
         return fcfile
 
     def __extract_rpms(self):
-        import yum
-        yb = yum.YumBase()
-        yb.setCacheDir()
+        import dnf
 
-        for pkg in yb.rpmdb.searchProvides(self.program):
+        base = dnf.Base()
+        base.read_all_repos()
+        base.fill_sack(load_system_repo=True)
+
+        query = base.sack.query()
+
+        pq = query.available()
+        pq = pq.filter(file=self.program)
+
+        for pkg in pq:
             self.rpms.append(pkg.name)
-            for fname in pkg.dirlist + pkg.filelist + pkg.ghostlist:
+            for fname in pkg.files:
                 for b in self.DEFAULT_DIRS:
                     if b == "/etc":
                         continue
@@ -1277,9 +1284,10 @@ allow %s_t %s_t:%s_socket name_%s;
                             self.add_file(fname)
                         else:
                             self.add_dir(fname)
-
-            for bpkg in yb.rpmdb.searchNames([pkg.base_package_name]):
-                for fname in bpkg.dirlist + bpkg.filelist + bpkg.ghostlist:
+            sq = query.available()
+            sq = sq.filter(provides=pkg.source_name)
+            for bpkg in sq:
+                for fname in bpkg.files:
                     for b in self.DEFAULT_DIRS:
                         if b == "/etc":
                             continue
@@ -1289,20 +1297,6 @@ allow %s_t %s_t:%s_socket name_%s;
                             else:
                                 self.add_dir(fname)
 
-        # some packages have own systemd subpackage
-        # tor-systemd for example
-        binary_name = self.program.split("/")[-1]
-        for bpkg in yb.rpmdb.searchNames(["%s-systemd" % binary_name]):
-            for fname in bpkg.filelist + bpkg.ghostlist + bpkg.dirlist:
-                for b in self.DEFAULT_DIRS:
-                    if b == "/etc":
-                        continue
-                    if fname.startswith(b):
-                        if os.path.isfile(fname):
-                            self.add_file(fname)
-                        else:
-                            self.add_dir(fname)
-
     def gen_writeable(self):
         try:
             self.__extract_rpms()
-- 
2.41.0