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Merge pull request #1035 from amtep/develop 

Guard against malicious clients in USERINFO_UPDATE handling
pull/1059/head
John McLear 2012-10-11 08:27:27 -07:00
parent bedc51d2e3 85b44119ae
commit d7ec050f34
1 changed files with 18 additions and 6 deletions
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26
src/node/handler/PadMessageHandler.js
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@ -418,21 +418,33 @@ function handleUserInfoUpdate(client, message)
var padId = sessioninfos[client.id].padId;
//set a null name, when there is no name set. cause the client wants it null
if(message.data.userInfo.name == null)
{
message.data.userInfo.name = null;
var infoMsg = {
type: "COLLABROOM",
data: {
// The Client doesn't know about USERINFO_UPDATE, use USER_NEWINFO
type: "USER_NEWINFO",
userInfo: {
userId: author,
name: message.data.userInfo.name,
colorId: message.data.userInfo.colorId,
userAgent: "Anonymous",
ip: "127.0.0.1",
}
}
};
//The Client don't know about a USERINFO_UPDATE, it can handle only new user_newinfo, so change the message type
message.data.type = "USER_NEWINFO";
//set a null name, when there is no name set. cause the client wants it null
if(infoMsg.data.userInfo.name == null)
{
infoMsg.data.userInfo.name = null;
}
//Send the other clients on the pad the update message
for(var i in pad2sessions[padId])
{
if(pad2sessions[padId][i] != client.id)
{
socketio.sockets.sockets[pad2sessions[padId][i]].json.send(message);
socketio.sockets.sockets[pad2sessions[padId][i]].json.send(infoMsg);
}
}
}