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-rw-r--r--kio/misc/tdesasl/tdesasl.cpp285
1 files changed, 285 insertions, 0 deletions
diff --git a/kio/misc/tdesasl/tdesasl.cpp b/kio/misc/tdesasl/tdesasl.cpp
new file mode 100644
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+++ b/kio/misc/tdesasl/tdesasl.cpp
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+/* This file is part of the KDE libraries
+ Copyright (C) 2001-2002 Michael Häckel <haeckel@kde.org>
+ $Id$
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License version 2 as published by the Free Software Foundation.
+
+ 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include "tdesasl.h"
+
+#include <kmdcodec.h>
+#include <kurl.h>
+
+#include <tqstrlist.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+KDESasl::KDESasl(const KURL &aUrl)
+{
+ mProtocol = aUrl.protocol();
+ mUser = aUrl.user();
+ mPass = aUrl.pass();
+ mFirst = true;
+}
+
+KDESasl::KDESasl(const TQString &aUser, const TQString &aPass,
+ const TQString &aProtocol)
+{
+ mProtocol = aProtocol;
+ mUser = aUser;
+ mPass = aPass;
+ mFirst = true;
+}
+
+KDESasl::~KDESasl() {
+}
+
+TQCString KDESasl::chooseMethod(const TQStrIList aMethods)
+{
+ if (aMethods.contains("DIGEST-MD5")) mMethod = "DIGEST-MD5";
+ else if (aMethods.contains("CRAM-MD5")) mMethod = "CRAM-MD5";
+ else if (aMethods.contains("PLAIN")) mMethod = "PLAIN";
+ else if (aMethods.contains("LOGIN")) mMethod = "LOGIN";
+ else mMethod = TQCString();
+ return mMethod;
+}
+
+void KDESasl::setMethod(const TQCString &aMethod)
+{
+ mMethod = aMethod.upper();
+}
+
+TQByteArray KDESasl::getPlainResponse()
+{
+ TQCString user = mUser.utf8();
+ TQCString pass = mPass.utf8();
+ int userlen = user.length();
+ int passlen = pass.length();
+ // result = $user\0$user\0$pass (no trailing \0)
+ TQByteArray result(2 * userlen + passlen + 2);
+ if ( userlen ) {
+ memcpy( result.data(), user.data(), userlen );
+ memcpy( result.data() + userlen + 1, user.data(), userlen );
+ }
+ if ( passlen )
+ memcpy( result.data() + 2 * userlen + 2, pass.data(), passlen );
+ result[userlen] = result[2*userlen+1] = '\0';
+ return result;
+}
+
+TQByteArray KDESasl::getLoginResponse()
+{
+ TQByteArray result = (mFirst) ? mUser.utf8() : mPass.utf8();
+ mFirst = !mFirst;
+ if (result.size()) result.resize(result.size() - 1);
+ return result;
+}
+
+TQByteArray KDESasl::getCramMd5Response(const TQByteArray &aChallenge)
+{
+ uint i;
+ TQByteArray secret = mPass.utf8();
+ int len = mPass.utf8().length();
+ secret.resize(len);
+ if (secret.size() > 64)
+ {
+ KMD5 md5(secret);
+ secret.duplicate((const char*)(&(md5.rawDigest()[0])), 16);
+ len = 16;
+ }
+ secret.resize(64);
+ for (i = len; i < 64; i++) secret[i] = 0;
+ TQByteArray XorOpad(64);
+ for (i = 0; i < 64; i++) XorOpad[i] = secret[i] ^ 0x5C;
+ TQByteArray XorIpad(64);
+ for (i = 0; i < 64; i++) XorIpad[i] = secret[i] ^ 0x36;
+ KMD5 md5;
+ md5.update(XorIpad);
+ md5.update(aChallenge);
+ KMD5 md5a;
+ md5a.update(XorOpad);
+ md5a.update(md5.rawDigest(), 16);
+ TQByteArray result = mUser.utf8();
+ len = mUser.utf8().length();
+ result.resize(len + 33);
+ result[len] = ' ';
+ TQCString ch = md5a.hexDigest();
+ for (i = 0; i < 32; i++) result[i+len+1] = *(ch.data() + i);
+ return result;
+}
+
+TQByteArray KDESasl::getDigestMd5Response(const TQByteArray &aChallenge)
+{
+ mFirst = !mFirst;
+ if (mFirst) return TQByteArray();
+ TQCString str, realm, nonce, qop, algorithm, charset;
+ TQCString nc = "00000001";
+ unsigned int a, b, c, d;
+ a = 0;
+ while (a < aChallenge.size())
+ {
+ b = a;
+ while (b < aChallenge.size() && aChallenge[b] != '=') b++;
+ c = b + 1;
+ if (aChallenge[c] == '"')
+ {
+ d = c + 1;
+ while (d < aChallenge.size() && aChallenge[d] != '"') d++;
+ c++;
+ } else {
+ d = c;
+ while (d < aChallenge.size() && aChallenge[d] != ',') d++;
+ }
+ str = TQCString(aChallenge.data() + c, d - c + 1);
+ if (qstrnicmp(aChallenge.data() + a, "realm=", 6) == 0) realm = str;
+ else if (qstrnicmp(aChallenge.data() + a, "nonce=", 6) == 0) nonce = str;
+ else if (qstrnicmp(aChallenge.data() + a, "qop=", 4) == 0) qop = str;
+ else if (qstrnicmp(aChallenge.data() + a, "algorithm=", 10) == 0)
+ algorithm = str;
+ else if (qstrnicmp(aChallenge.data() + a, "charset=", 8) == 0)
+ charset = str;
+ a = (d < aChallenge.size() && aChallenge[d] == '"') ? d + 2 : d + 1;
+ }
+ if (qop.isEmpty()) qop = "auth";
+ qop = "auth";
+ bool utf8 = qstricmp(charset, "utf-8") == 0;
+ TQCString digestUri = TQCString(mProtocol.latin1()) + "/" + realm;
+
+ /* Calculate the response */
+ /* Code based on code from the http io-slave
+ Copyright (C) 2000,2001 Dawit Alemayehu <adawit@kde.org>
+ Copyright (C) 2000,2001 Waldo Bastian <bastian@kde.org>
+ Copyright (C) 2000,2001 George Staikos <staikos@kde.org> */
+ KMD5 md, md2;
+ TQCString HA1, HA2;
+ TQCString cnonce;
+ cnonce.setNum((1 + static_cast<int>(100000.0*rand()/(RAND_MAX+1.0))));
+ cnonce = KCodecs::base64Encode( cnonce );
+
+ // Calculate H(A1)
+ TQCString authStr = (utf8) ? mUser.utf8() : TQCString(mUser.latin1());
+ authStr += ':';
+ authStr += realm;
+ authStr += ':';
+ authStr += (utf8) ? mPass.utf8() : TQCString(mPass.latin1());
+
+ md.update( authStr );
+ authStr = "";
+ if ( algorithm == "md5-sess" )
+ {
+ authStr += ':';
+ authStr += nonce;
+ authStr += ':';
+ authStr += cnonce;
+ }
+ md2.reset();
+ /* SASL authentication uses rawDigest here, whereas HTTP authentication uses
+ hexDigest() */
+ md2.update(md.rawDigest(), 16);
+ md2.update( authStr );
+ md2.hexDigest( HA1 );
+
+ // Calcualte H(A2)
+ authStr = "AUTHENTICATE:";
+ authStr += digestUri;
+ if ( qop == "auth-int" || qop == "auth-conf" )
+ {
+ authStr += ":00000000000000000000000000000000";
+ }
+ md.reset();
+ md.update( authStr );
+ md.hexDigest( HA2 );
+
+ // Calcualte the response.
+ authStr = HA1;
+ authStr += ':';
+ authStr += nonce;
+ authStr += ':';
+ if ( !qop.isEmpty() )
+ {
+ authStr += nc;
+ authStr += ':';
+ authStr += cnonce;
+ authStr += ':';
+ authStr += qop;
+ authStr += ':';
+ }
+ authStr += HA2;
+ md.reset();
+ md.update( authStr );
+ TQCString response = md.hexDigest();
+ /* End of response calculation */
+
+ TQCString result;
+ if (utf8)
+ {
+ result = "charset=utf-8,username=\"" + mUser.utf8();
+ } else {
+ result = "charset=iso-8859-1,username=\"" + TQCString(mUser.latin1());
+ }
+ result += "\",realm=\"" + realm + "\",nonce=\"" + nonce;
+ result += "\",nc=" + nc + ",cnonce=\"" + cnonce;
+ result += "\",digest-uri=\"" + digestUri;
+ result += "\",response=" + response + ",qop=" + qop;
+ TQByteArray ba;
+ ba.duplicate(result.data(), result.length());
+ return ba;
+}
+
+TQByteArray KDESasl::getBinaryResponse(const TQByteArray &aChallenge, bool aBase64)
+{
+ if (aBase64)
+ {
+ TQByteArray ba;
+ KCodecs::base64Decode(aChallenge, ba);
+ KCodecs::base64Encode(getBinaryResponse(ba, false), ba);
+ return ba;
+ }
+ if (qstricmp(mMethod, "PLAIN") == 0) return getPlainResponse();
+ if (qstricmp(mMethod, "LOGIN") == 0) return getLoginResponse();
+ if (qstricmp(mMethod, "CRAM-MD5") == 0)
+ return getCramMd5Response(aChallenge);
+ if (qstricmp(mMethod, "DIGEST-MD5") == 0)
+ return getDigestMd5Response(aChallenge);
+// return getDigestMd5Response(TQCString("realm=\"elwood.innosoft.com\",nonce=\"OA6MG9tEQGm2hh\",qop=\"auth\",algorithm=md5-sess,charset=utf-8"));
+ return TQByteArray();
+}
+
+TQCString KDESasl::getResponse(const TQByteArray &aChallenge, bool aBase64)
+{
+ TQByteArray ba = getBinaryResponse(aChallenge, aBase64);
+ return TQCString(ba.data(), ba.size() + 1);
+}
+
+TQCString KDESasl::method() const {
+ return mMethod;
+}
+
+bool KDESasl::clientStarts() const {
+ return method() == "PLAIN";
+}
+
+bool KDESasl::dialogComplete( int n ) const {
+ if ( method() == "PLAIN" || method() == "CRAM-MD5" )
+ return n >= 1;
+ if ( method() == "LOGIN" || method() == "DIGEST-MD5" )
+ return n >= 2;
+ return true;
+}
+
+bool KDESasl::isClearTextMethod() const {
+ return method() == "PLAIN" || method() == "LOGIN" ;
+}
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