1 files changed, 47 insertions, 26 deletions
diff --git a/tools/comparecert.py b/tools/comparecert.py
index 6d2bbf2..81893f7 100755
--- a/tools/comparecert.py
+++ b/tools/comparecert.py
@@ -20,38 +20,59 @@ import signal
 import select
 import zipfile
 
+def readfile(filename):
+    contents = open(filename).read()
+    certchain = get_certs_from_string(contents)
+    precerts = get_precerts_from_string(contents)
+    return (certchain, precerts)
+
+def testcerts(template, test):
+    (certchain1, precerts1) = template
+    (certchain2, precerts2) = test
+
+    if precerts1 != precerts2:
+        return (False, "precerts are different")
+
+    if certchain1 == certchain2:
+        return (True, "")
+
+    if len(certchain2) == len(certchain1) + 1:
+        if certchain2[:-1] != certchain1:
+            return (False, "certchains are different")
+        last_issuer = get_cert_info(certchain1[-1])["issuer"]
+        root_subject = get_cert_info(certchain2[-1])["subject"]
+        if last_issuer == root_subject:
+            return (True, "fetched chain has an appended root cert")
+        else:
+            return (False, "fetched chain has an extra entry")
+
+    return (False, "certchains are different")
+
 parser = argparse.ArgumentParser(description='')
 parser.add_argument('templates', help="Test templates, separated with colon")
 parser.add_argument('test', help="Files to test, separated with colon")
 args = parser.parse_args()
 
-file1contents = open(args.templates).read()
-certchain1 = get_certs_from_string(file1contents)
-precerts1 = get_precerts_from_string(file1contents)
-
-file2contents = open(args.test).read()
-certchain2 = get_certs_from_string(file2contents)
-precerts2 = get_precerts_from_string(file2contents)
+templates = [readfile(filename) for filename in args.templates.split(":")]
 
-if precerts1 != precerts2:
-    print "precerts are different"
-    sys.exit(1)
+tests = [readfile(filename) for filename in args.test.split(":")]
 
-if certchain1 == certchain2:
-    sys.exit(0)
 
-if len(certchain2) == len(certchain1) + 1:
-    if certchain2[:-1] != certchain1:
-        print "certchains are different"
+for test in tests:
+    found = False
+    errors = []
+    for template in templates:
+        (result, message) = testcerts(template, test)
+        if result:
+            print message
+            found = True
+            templates.remove(template)
+            break
+        else:
+            errors.append(message)
+    if not found:
+        print "Matching template not found for test"
+        for error in errors:
+            print error
         sys.exit(1)
-    last_issuer = get_cert_info(certchain1[-1])["issuer"]
-    root_subject = get_cert_info(certchain2[-1])["subject"]
-    if last_issuer == root_subject:
-        print "fetched chain has an appended root cert"
-        sys.exit(0)
-    else:
-        print "fetched chain has an extra entry"
-        sys.exit(1)
-
-print "certchains are different"
-sys.exit(1)
+sys.exit(0)