Fixes raw to interpolated value by recursive substitution. Avoid too deeply recursive extended interpolation cross sections (test covered now);

fail2ban/client/configparserinc.py

@@ -164,8 +164,8 @@ after = 1.conf
 							except KeyError:
 								continue
 					else:
-						# get substituted value of opt in section:
-						v = self.get(sec, opt)
+						# get raw value of opt in section:
+						v = self.get(sec, opt, raw=True)
 				else:
 					try:
 						v = self._defaults[opt]

fail2ban/tests/clientreadertestcase.py

@@ -170,24 +170,31 @@ a = def-a
 b = def-b,a:`%(a)s`
 c = def-c,b:"%(b)s"
 d = def-d-b:"%(known/b)s"
+
 [jail]
 a = jail-a-%(test/a)s
 b = jail-b-%(test/b)s
+y = %(test/y)s
+
 [test]
 a = test-a-%(default/a)s
 b = test-b-%(known/b)s
+x = %(test/x)s
+y = %(jail/y)s
 """)
 		self.assertTrue(self.c.read('g'))
 		self.assertEqual(self.c.get('test', 'a'), 'test-a-def-a')
 		self.assertEqual(self.c.get('test', 'b'), 'test-b-def-b,a:`test-a-def-a`')
 		self.assertEqual(self.c.get('jail', 'a'), 'jail-a-test-a-def-a')
-		self.assertEqual(self.c.get('jail', 'b'), 'jail-b-test-b-def-b,a:`test-a-def-a`')
-		self.assertEqual(self.c.get('jail', 'c'), 'def-c,b:"jail-b-test-b-def-b,a:`test-a-def-a`"')
+		self.assertEqual(self.c.get('jail', 'b'), 'jail-b-test-b-def-b,a:`jail-a-test-a-def-a`')
+		self.assertEqual(self.c.get('jail', 'c'), 'def-c,b:"jail-b-test-b-def-b,a:`jail-a-test-a-def-a`"')
 		self.assertEqual(self.c.get('jail', 'd'), 'def-d-b:"def-b,a:`jail-a-test-a-def-a`"')
 		self.assertEqual(self.c.get('test', 'c'), 'def-c,b:"test-b-def-b,a:`test-a-def-a`"')
 		self.assertEqual(self.c.get('test', 'd'),  'def-d-b:"def-b,a:`test-a-def-a`"')
 		self.assertEqual(self.c.get('DEFAULT', 'c'), 'def-c,b:"def-b,a:`def-a`"')
 		self.assertEqual(self.c.get('DEFAULT', 'd'), 'def-d-b:"def-b,a:`def-a`"')
+		self.assertRaises(Exception, self.c.get, 'test', 'x')
+		self.assertRaises(Exception, self.c.get, 'jail', 'y')
 
 
 class JailReaderTest(LogCaptureTestCase):