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-rw-r--r--Swiften/SASL/SCRAMSHA1ClientAuthenticator.cpp11
-rw-r--r--Swiften/SASL/SCRAMSHA1ClientAuthenticator.h3
-rw-r--r--Swiften/SASL/UnitTest/SCRAMSHA1ClientAuthenticatorTest.cpp12
3 files changed, 23 insertions, 3 deletions
diff --git a/Swiften/SASL/SCRAMSHA1ClientAuthenticator.cpp b/Swiften/SASL/SCRAMSHA1ClientAuthenticator.cpp
index 5e6179f..5dc924e 100644
--- a/Swiften/SASL/SCRAMSHA1ClientAuthenticator.cpp
+++ b/Swiften/SASL/SCRAMSHA1ClientAuthenticator.cpp
@@ -36,7 +36,7 @@ ByteArray SCRAMSHA1ClientAuthenticator::getResponse() const {
if (step == Initial) {
return getGS2Header() + getInitialBareClientMessage();
}
- else {
+ else if (step == Proof) {
ByteArray clientKey = HMACSHA1::getResult(saltedPassword, "Client Key");
ByteArray storedKey = SHA1::getHash(clientKey);
ByteArray clientSignature = HMACSHA1::getResult(storedKey, authMessage);
@@ -47,6 +47,9 @@ ByteArray SCRAMSHA1ClientAuthenticator::getResponse() const {
ByteArray result = ByteArray("c=") + Base64::encode(getGS2Header()) + ",r=" + clientnonce + serverNonce + ",p=" + Base64::encode(clientProof);
return result;
}
+ else {
+ return ByteArray();
+ }
}
bool SCRAMSHA1ClientAuthenticator::setChallenge(const ByteArray& challenge) {
@@ -90,10 +93,14 @@ bool SCRAMSHA1ClientAuthenticator::setChallenge(const ByteArray& challenge) {
step = Proof;
return true;
}
- else {
+ else if (step == Proof) {
ByteArray result = ByteArray("v=") + ByteArray(Base64::encode(serverSignature));
+ step = Final;
return challenge == result;
}
+ else {
+ return true;
+ }
}
std::map<char, String> SCRAMSHA1ClientAuthenticator::parseMap(const String& s) {
diff --git a/Swiften/SASL/SCRAMSHA1ClientAuthenticator.h b/Swiften/SASL/SCRAMSHA1ClientAuthenticator.h
index 6636139..3d28014 100644
--- a/Swiften/SASL/SCRAMSHA1ClientAuthenticator.h
+++ b/Swiften/SASL/SCRAMSHA1ClientAuthenticator.h
@@ -23,7 +23,8 @@ namespace Swift {
private:
enum Step {
Initial,
- Proof
+ Proof,
+ Final
} step;
String clientnonce;
ByteArray initialServerMessage;
diff --git a/Swiften/SASL/UnitTest/SCRAMSHA1ClientAuthenticatorTest.cpp b/Swiften/SASL/UnitTest/SCRAMSHA1ClientAuthenticatorTest.cpp
index 5eedeb2..db69d13 100644
--- a/Swiften/SASL/UnitTest/SCRAMSHA1ClientAuthenticatorTest.cpp
+++ b/Swiften/SASL/UnitTest/SCRAMSHA1ClientAuthenticatorTest.cpp
@@ -22,6 +22,7 @@ class SCRAMSHA1ClientAuthenticatorTest : public CppUnit::TestFixture {
CPPUNIT_TEST(testSetChallenge_MissingIterations);
CPPUNIT_TEST(testSetFinalChallenge);
CPPUNIT_TEST(testSetFinalChallenge_InvalidChallenge);
+ CPPUNIT_TEST(testGetResponseAfterFinalChallenge);
CPPUNIT_TEST_SUITE_END();
public:
@@ -155,6 +156,17 @@ class SCRAMSHA1ClientAuthenticatorTest : public CppUnit::TestFixture {
CPPUNIT_ASSERT(!result);
}
+
+ void testGetResponseAfterFinalChallenge() {
+ SCRAMSHA1ClientAuthenticator testling("abcdefgh");
+ testling.setCredentials("user", "pass", "");
+ testling.setChallenge(ByteArray("r=abcdefghABCDEFGH,s=MTIzNDU2NzgK,i=4096"));
+ testling.setChallenge(ByteArray("v=Dd+Q20knZs9jeeK0pi1Mx1Se+yo="));
+
+ ByteArray result = testling.getResponse();
+
+ CPPUNIT_ASSERT_EQUAL(ByteArray(), result);
+ }
};
CPPUNIT_TEST_SUITE_REGISTRATION(SCRAMSHA1ClientAuthenticatorTest);