From deb9d6cb53057ca8b90d10d6a3bdc5dcfd1b3ee4 Mon Sep 17 00:00:00 2001
From: Jeremy Lainé <jeremy.laine@m4x.org>
Date: Wed, 8 Feb 2012 12:51:15 +0000
Subject: move files common to client/server into "base"

---
 src/base/QXmppSaslAuth.cpp | 214 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 214 insertions(+)
 create mode 100644 src/base/QXmppSaslAuth.cpp

(limited to 'src/base/QXmppSaslAuth.cpp')

diff --git a/src/base/QXmppSaslAuth.cpp b/src/base/QXmppSaslAuth.cpp
new file mode 100644
index 00000000..a528cd6d
--- /dev/null
+++ b/src/base/QXmppSaslAuth.cpp
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2008-2011 The QXmpp developers
+ *
+ * Authors:
+ *  Manjeet Dahiya
+ *  Jeremy Lainé
+ *
+ * Source:
+ *  http://code.google.com/p/qxmpp
+ *
+ * This file is a part of QXmpp library.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ */
+
+#include <cstdlib>
+
+#include <QCryptographicHash>
+
+#include "QXmppSaslAuth.h"
+#include "QXmppUtils.h"
+
+QByteArray QXmppSaslDigestMd5::authzid() const
+{
+    return m_authzid;
+}
+
+void QXmppSaslDigestMd5::setAuthzid(const QByteArray &authzid)
+{
+    m_authzid = authzid;
+}
+
+QByteArray QXmppSaslDigestMd5::cnonce() const
+{
+    return m_cnonce;
+}
+
+void QXmppSaslDigestMd5::setCnonce(const QByteArray &cnonce)
+{
+    m_cnonce = cnonce;
+}
+
+QByteArray QXmppSaslDigestMd5::digestUri() const
+{
+    return m_digestUri;
+}
+
+void QXmppSaslDigestMd5::setDigestUri(const QByteArray &digestUri)
+{
+    m_digestUri = digestUri;
+}
+
+QByteArray QXmppSaslDigestMd5::nc() const
+{
+    return m_nc;
+}
+
+void QXmppSaslDigestMd5::setNc(const QByteArray &nc)
+{
+    m_nc = nc;
+}
+
+QByteArray QXmppSaslDigestMd5::nonce() const
+{
+    return m_nonce;
+}
+
+void QXmppSaslDigestMd5::setNonce(const QByteArray &nonce)
+{
+    m_nonce = nonce;
+}
+
+QByteArray QXmppSaslDigestMd5::qop() const
+{
+    return m_qop;
+}
+
+void QXmppSaslDigestMd5::setQop(const QByteArray &qop)
+{
+    m_qop = qop;
+}
+
+void QXmppSaslDigestMd5::setSecret(const QByteArray &secret)
+{
+    m_secret = secret;
+}
+
+QByteArray QXmppSaslDigestMd5::generateNonce()
+{
+    QByteArray nonce = generateRandomBytes(32);
+
+    // The random data can the '=' char is not valid as it is a delimiter,
+    // so to be safe, base64 the nonce
+    return nonce.toBase64();
+}
+
+/// Calculate digest response for use with XMPP/SASL.
+///
+/// \param A2
+///
+
+QByteArray QXmppSaslDigestMd5::calculateDigest(const QByteArray &A2) const
+{
+    QByteArray ha1 = m_secret + ':' + m_nonce + ':' + m_cnonce;
+
+    if (!m_authzid.isEmpty())
+        ha1 += ':' + m_authzid;
+
+    return calculateDigest(ha1, A2);
+}
+
+/// Calculate generic digest response.
+///
+/// \param A1
+/// \param A2
+///
+
+QByteArray QXmppSaslDigestMd5::calculateDigest(const QByteArray &A1, const QByteArray &A2) const
+{
+    QByteArray HA1 = QCryptographicHash::hash(A1, QCryptographicHash::Md5).toHex();
+    QByteArray HA2 = QCryptographicHash::hash(A2, QCryptographicHash::Md5).toHex();
+    QByteArray KD;
+    if (m_qop == "auth" || m_qop == "auth-int")
+        KD = HA1 + ':' + m_nonce + ':' + m_nc + ':' + m_cnonce + ':' + m_qop + ':' + HA2;
+    else
+        KD = HA1 + ':' + m_nonce + ':' + HA2;
+    return QCryptographicHash::hash(KD, QCryptographicHash::Md5).toHex();
+}
+
+QMap<QByteArray, QByteArray> QXmppSaslDigestMd5::parseMessage(const QByteArray &ba)
+{
+    QMap<QByteArray, QByteArray> map;
+    int startIndex = 0;
+    int pos = 0;
+    while ((pos = ba.indexOf("=", startIndex)) >= 0)
+    {
+        // key get name and skip equals
+        const QByteArray key = ba.mid(startIndex, pos - startIndex).trimmed();
+        pos++;
+
+        // check whether string is quoted
+        if (ba.at(pos) == '"')
+        {
+            // skip opening quote
+            pos++;
+            int endPos = ba.indexOf('"', pos);
+            // skip quoted quotes
+            while (endPos >= 0 && ba.at(endPos - 1) == '\\')
+                endPos = ba.indexOf('"', endPos + 1);
+            if (endPos < 0)
+            {
+                qWarning("Unfinished quoted string");
+                return map;
+            }
+            // unquote
+            QByteArray value = ba.mid(pos, endPos - pos);
+            value.replace("\\\"", "\"");
+            value.replace("\\\\", "\\");
+            map[key] = value;
+            // skip closing quote and comma
+            startIndex = endPos + 2;
+        } else {
+            // non-quoted string
+            int endPos = ba.indexOf(',', pos);
+            if (endPos < 0)
+                endPos = ba.size();
+            map[key] = ba.mid(pos, endPos - pos);
+            // skip comma
+            startIndex = endPos + 1;
+        }
+    }
+    return map;
+}
+
+QByteArray QXmppSaslDigestMd5::serializeMessage(const QMap<QByteArray, QByteArray> &map)
+{
+    QByteArray ba;
+    foreach (const QByteArray &key, map.keys())
+    {
+        if (!ba.isEmpty())
+            ba.append(',');
+        ba.append(key + "=");
+        QByteArray value = map[key];
+        const char *separators = "()<>@,;:\\\"/[]?={} \t";
+        bool quote = false;
+        for (const char *c = separators; *c; c++)
+        {
+            if (value.contains(*c))
+            {
+                quote = true;
+                break;
+            }
+        }
+        if (quote)
+        {
+            value.replace("\\", "\\\\");
+            value.replace("\"", "\\\"");
+            ba.append("\"" + value + "\"");
+        }
+        else
+            ba.append(value);
+    }
+    return ba;
+}
+
-- 
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