Add testing of HMAC

demo/hmac.py

+import sqlite3, subprocess
+
+MACHINES = {'m1': '2001:db8:42:1::1', 'm2': '2001:db8:42:2::1',
+            'm3': '2001:db8:42:3::1', 'm4': '2001:db8:42:4::1',
+            'm5': '2001:db8:42:5::1', 'm6': '2001:db8:42:6::1',
+            'm7': '2001:db8:42:7::1', 'm8': '2001:db8:42:8::1',
+            'registry': '2001:db8:42::1'}
+
+reg_db = sqlite3.connect('registry/registry.db', isolation_level=None)
+reg_db.text_factory = str
+
+def getConfig(self, db, name):
+    r, = next(db.execute(
+              "SELECT value FROM config WHERE name=?", (name,)), None)
+    return r
+
+def checkDB(self, machines=MACHINES):
+    true_hmacs = {'hmac0': None, 'hmac1': None, 'hmac2': None}
+    for k in true_hmacs.keys():
+        true_hmac[k] = self.getConfig(self.reg_db, k)
+    for m in machines.keys():
+        db = sqlite3.connect('%s/cache.db', isolation_level=None)
+        for k in true_hmacs.keys():
+            r = getConfig(db, k)
+            if not r and true_hmacs[k]:
+                print('no %s found in db of %s' % (k, m))
+            elif r:
+                if true_hmacs[k] and true_hmacs[k] is not r:
+                    print('%s of %s is %s (!= %s)' % (k, m, r, true_hmacs[k]))
+                elif not true_hmacs[k]:
+                    print('db of %s should not contain %s' %(m, k))
+checkDB(MACHINES)