From 990c96c992c4cf21173c904dd85f0b378e1c89b0 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Wed, 19 Oct 2011 01:05:22 +0300
Subject: Hide passwords from packets logs.

---
 src/net/messageout.cpp        | 28 ++++++++++++++++++++++++++++
 src/net/messageout.h          |  7 +++++++
 src/net/tmwa/loginhandler.cpp |  6 +++---
 3 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/src/net/messageout.cpp b/src/net/messageout.cpp
index a8b66f5ae..f18f65a93 100644
--- a/src/net/messageout.cpp
+++ b/src/net/messageout.cpp
@@ -82,6 +82,34 @@ void MessageOut::writeString(const std::string &string, int length)
     PacketCounters::incOutBytes(length);
 }
 
+void MessageOut::writeStringNoLog(const std::string &string, int length)
+{
+    DEBUGLOG("writeString: ***");
+    int stringLength = static_cast<int>(string.length());
+    if (length < 0)
+    {
+        // Write the length at the start if not fixed
+        writeInt16(static_cast<short>(stringLength));
+        length = stringLength;
+    }
+    else if (length < stringLength)
+    {
+        // Make sure the length of the string is no longer than specified
+        stringLength = length;
+    }
+    expand(length);
+
+    // Write the actual string
+    memcpy(mData + mPos, string.c_str(), stringLength);
+
+    // Pad remaining space with zeros
+    if (length > stringLength)
+        memset(mData + mPos + stringLength, '\0', length - stringLength);
+
+    mPos += length;
+    PacketCounters::incOutBytes(length);
+}
+
 char *MessageOut::getData() const
 {
     return mData;
diff --git a/src/net/messageout.h b/src/net/messageout.h
index 39a2e68bd..4445bbbe8 100644
--- a/src/net/messageout.h
+++ b/src/net/messageout.h
@@ -56,6 +56,13 @@ class MessageOut
          */
         virtual void writeString(const std::string &string, int length = -1);
 
+        /**
+         * Writes a string. If a fixed length is not given (-1), it is stored
+         * as a short at the start of the string.
+         */
+        virtual void writeStringNoLog(const std::string &string,
+                                      int length = -1);
+
         /**
          * Returns the content of the message.
          */
diff --git a/src/net/tmwa/loginhandler.cpp b/src/net/tmwa/loginhandler.cpp
index cac8df623..bdc944d63 100644
--- a/src/net/tmwa/loginhandler.cpp
+++ b/src/net/tmwa/loginhandler.cpp
@@ -118,8 +118,8 @@ void LoginHandler::changePassword(const std::string &username A_UNUSED,
                                   const std::string &newPassword)
 {
     MessageOut outMsg(CMSG_CHAR_PASSWORD_CHANGE);
-    outMsg.writeString(oldPassword, 24);
-    outMsg.writeString(newPassword, 24);
+    outMsg.writeStringNoLog(oldPassword, 24);
+    outMsg.writeStringNoLog(newPassword, 24);
 }
 
 void LoginHandler::sendLoginRegister(const std::string &username,
@@ -128,7 +128,7 @@ void LoginHandler::sendLoginRegister(const std::string &username,
     MessageOut outMsg(0x0064);
     outMsg.writeInt32(0); // client version
     outMsg.writeString(username, 24);
-    outMsg.writeString(password, 24);
+    outMsg.writeStringNoLog(password, 24);
 
     /*
      * eAthena calls the last byte "client version 2", but it isn't used at
-- 
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