From 51cf464f7450ee31e3a986b521f90cc6195bb2fb Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Thu, 2 Jun 2011 00:01:11 +0300
Subject: [PATCH] Fixed the password crash on Windows

---
 src/base64.cpp  | 7 ++++---
 src/client.cpp  | 6 ++++++
 src/main.cpp    | 3 +++
 src/server.cpp  | 2 +-
 src/utility.cpp | 8 ++++----
 5 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/src/base64.cpp b/src/base64.cpp
index 2a863d161..0dfba5013 100644
--- a/src/base64.cpp
+++ b/src/base64.cpp
@@ -71,9 +71,10 @@ std::string base64_encode(unsigned char const* bytes_to_encode, unsigned int in_
 
     for (j = 0; (j < i + 1); j++)
       ret += base64_chars[char_array_4[j]];
-
-    while((i++ < 3))
-      ret += '=';
+	
+	// Don't pad it with =
+    /*while((i++ < 3))
+      ret += '=';*/
 
   }
 
diff --git a/src/client.cpp b/src/client.cpp
index 79bbd8021..e494056f2 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -306,8 +306,14 @@ void Client::step(float dtime)
 			SharedBuffer<u8> data(2+1+PLAYERNAME_SIZE+PASSWORD_SIZE);
 			writeU16(&data[0], TOSERVER_INIT);
 			writeU8(&data[2], SER_FMT_VER_HIGHEST);
+
 			memset((char*)&data[3], 0, PLAYERNAME_SIZE);
 			snprintf((char*)&data[3], PLAYERNAME_SIZE, "%s", myplayer->getName());
+
+			/*dstream<<"Client: password hash is \""<<m_password<<"\""
+					<<std::endl;*/
+
+			memset((char*)&data[23], 0, PASSWORD_SIZE);
 			snprintf((char*)&data[23], PASSWORD_SIZE, "%s", m_password.c_str());
 
 			// Send as unreliable
diff --git a/src/main.cpp b/src/main.cpp
index e582569c5..958f812b3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -314,6 +314,7 @@ Fixes to the current release:
 -----------------------------
 - Fix client password crash
 - Remember to release the fixes (some are already done)
+- A command to set one's password when the server is running
 
 Stuff to do after release:
 ---------------------------
@@ -1527,6 +1528,8 @@ int main(int argc, char *argv[])
 				g_settings.set("creative_mode", itos(menudata.creative_mode));
 				g_settings.set("enable_damage", itos(menudata.enable_damage));
 				
+				// NOTE: These are now checked server side; no need to do it
+				//       here, so let's not do it here.
 				/*// Check for valid parameters, restart menu if invalid.
 				if(playername == "")
 				{
diff --git a/src/server.cpp b/src/server.cpp
index acfc7446f..96fcc0d07 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -1923,7 +1923,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 			checkpwd = g_settings.get("default_password");
 		}
 		
-		if(password != checkpwd)
+		if(password != checkpwd && checkpwd != "")
 		{
 			derr_server<<DTIME<<"Server: peer_id="<<peer_id
 					<<": supplied invalid password for "
diff --git a/src/utility.cpp b/src/utility.cpp
index 186881c5a..0721100cb 100644
--- a/src/utility.cpp
+++ b/src/utility.cpp
@@ -229,10 +229,10 @@ std::string translatePassword(std::string playername, std::wstring password)
 	if(password.length() == 0)
 		return "";
 
-	std::string slt=playername + wide_to_narrow(password);
-	SHA1 *sha1 = new SHA1();
-	sha1->addBytes(slt.c_str(), slt.length());
-	unsigned char *digest = sha1->getDigest();
+	std::string slt = playername + wide_to_narrow(password);
+	SHA1 sha1;
+	sha1.addBytes(slt.c_str(), slt.length());
+	unsigned char *digest = sha1.getDigest();
 	std::string pwd = base64_encode(digest, 20);
 	free(digest);
 	return pwd;