]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree/compat.cpp
Merge insp20
[user/henk/code/inspircd.git] / src / modules / m_spanningtree / compat.cpp
index 5893a09fd64eeda13a581c3dcb4063f332576012..63fc9cf6ce97e4f347fbc45ea1498467fc359f73 100644 (file)
 
 static std::string newline("\n");
 
+void TreeSocket::WriteLineNoCompat(const std::string& line)
+{
+       ServerInstance->Logs->Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
+       this->WriteData(line);
+       this->WriteData(newline);
+}
+
 void TreeSocket::WriteLine(const std::string& original_line)
 {
        if (LinkState == CONNECTED)
@@ -39,7 +46,7 @@ void TreeSocket::WriteLine(const std::string& original_line)
                        std::string line = original_line;
                        std::string::size_type a = line.find(' ');
                        std::string::size_type b = line.find(' ', a + 1);
-                       std::string command = line.substr(a + 1, b-a-1);
+                       std::string command(line, a + 1, b-a-1);
                        // now try to find a translation entry
                        // TODO a more efficient lookup method will be needed later
                        if (proto_version < 1205)
@@ -61,7 +68,7 @@ void TreeSocket::WriteLine(const std::string& original_line)
                                        {
                                                // No TS or modes in the command
                                                // :22DAAAAAB IJOIN #chan
-                                               const std::string channame = line.substr(b+1, c-b-1);
+                                               const std::string channame(line, b+1, c-b-1);
                                                Channel* chan = ServerInstance->FindChan(channame);
                                                if (!chan)
                                                        return;
@@ -246,19 +253,69 @@ void TreeSocket::WriteLine(const std::string& original_line)
                                }
                                else if (command == "SINFO")
                                {
-                                       return;
+                                       // :22D SINFO version :InspIRCd-2.2
+                                       //     A     B       C
+                                       std::string::size_type c = line.find(' ', b + 1);
+                                       if (c == std::string::npos)
+                                               return;
+
+                                       // Only translating SINFO version, discard everything else
+                                       if (line.compare(b, 9, " version ", 9))
+                                               return;
+
+                                       line = line.substr(0, 5) + "VERSION" + line.substr(c);
+                               }
+                               else if (command == "SERVER")
+                               {
+                                       // :001 SERVER inspircd.test 002 [<anything> ...] :gecos
+                                       //     A      B             C
+                                       std::string::size_type c = line.find(' ', b + 1);
+                                       if (c == std::string::npos)
+                                               return;
+
+                                       std::string::size_type d = c + 4;
+                                       std::string::size_type spcolon = line.find(" :", d);
+                                       if (spcolon == std::string::npos)
+                                               return;
+
+                                       line.erase(d, spcolon-d);
+                                       line.insert(c, " * 0");
+
+                                       if (burstsent)
+                                       {
+                                               WriteLineNoCompat(line);
+
+                                               // Synthesize a :<newserver> BURST <time> message
+                                               spcolon = line.find(" :");
+                                               line = CmdBuilder(line.substr(spcolon-3, 3), "BURST").push_int(ServerInstance->Time()).str();
+                                       }
+                               }
+                               else if (command == "NUM")
+                               {
+                                       // :<sid> NUM <numeric source sid> <target uuid> <3 digit number> <params>
+                                       // Translate to
+                                       // :<sid> PUSH <target uuid> :<numeric source name> <3 digit number> <target nick> <params>
+
+                                       TreeServer* const numericsource = Utils->FindServerID(line.substr(9, 3));
+                                       if (!numericsource)
+                                               return;
+
+                                       // The nick of the target is necessary for building the PUSH message
+                                       User* const target = ServerInstance->FindUUID(line.substr(13, UIDGenerator::UUID_LENGTH));
+                                       if (!target)
+                                               return;
+
+                                       std::string push = InspIRCd::Format(":%.*s PUSH %s ::%s %.*s %s", 3, line.c_str()+1, target->uuid.c_str(), numericsource->GetName().c_str(), 3, line.c_str()+23, target->nick.c_str());
+                                       push.append(line, 26, std::string::npos);
+                                       push.swap(line);
                                }
                        }
-                       ServerInstance->Logs->Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), line.c_str());
-                       this->WriteData(line);
-                       this->WriteData(newline);
+                       WriteLineNoCompat(line);
                        return;
                }
        }
 
-       ServerInstance->Logs->Log(MODNAME, LOG_RAWIO, "S[%d] O %s", this->GetFd(), original_line.c_str());
-       this->WriteData(original_line);
-       this->WriteData(newline);
+       WriteLineNoCompat(original_line);
 }
 
 namespace
@@ -383,6 +440,141 @@ bool TreeSocket::PreProcessOldProtocolMessage(User*& who, std::string& cmd, std:
                // Insert channel timestamp after the channel name; the 3rd parameter, if there, is the invite expiration time
                return InsertCurrentChannelTS(params, 1, 2);
        }
+       else if (cmd == "VERSION")
+       {
+               // :20D VERSION :InspIRCd-2.0
+               // change to
+               // :20D SINFO version :InspIRCd-2.0
+               cmd = "SINFO";
+               params.insert(params.begin(), "version");
+       }
+       else if (cmd == "JOIN")
+       {
+               // 2.0 allows and forwards legacy JOINs but we don't, so translate them to FJOINs before processing
+               if ((params.size() != 1) || (IS_SERVER(who)))
+                       return false; // Huh?
+
+               cmd = "FJOIN";
+               Channel* chan = ServerInstance->FindChan(params[0]);
+               params.push_back(ConvToStr(chan ? chan->age : ServerInstance->Time()));
+               params.push_back("+");
+               params.push_back(",");
+               params.back().append(who->uuid);
+               who = TreeServer::Get(who)->ServerUser;
+       }
+       else if ((cmd == "FMODE") && (params.size() >= 2))
+       {
+               // Translate user mode changes with timestamp to MODE
+               if (params[0][0] != '#')
+               {
+                       User* user = ServerInstance->FindUUID(params[0]);
+                       if (!user)
+                               return false;
+
+                       // Emulate the old nonsensical behavior
+                       if (user->age < ServerCommand::ExtractTS(params[1]))
+                               return false;
+
+                       cmd = "MODE";
+                       params.erase(params.begin()+1);
+               }
+       }
+       else if ((cmd == "SERVER") && (params.size() > 4))
+       {
+               // This does not affect the initial SERVER line as it is sent before the link state is CONNECTED
+               // :20D SERVER <name> * 0 <sid> <desc>
+               // change to
+               // :20D SERVER <name> <sid> <desc>
+
+               params[1].swap(params[3]);
+               params.erase(params.begin()+2, params.begin()+4);
+
+               // If the source of this SERVER message is not bursting, then new servers it introduces are bursting
+               TreeServer* server = TreeServer::Get(who);
+               if (!server->IsBursting())
+                       params.insert(params.begin()+2, "burst=" + ConvToStr(((uint64_t)ServerInstance->Time())*1000));
+       }
+       else if (cmd == "BURST")
+       {
+               // A server is introducing another one, drop unnecessary BURST
+               return false;
+       }
+       else if (cmd == "SVSWATCH")
+       {
+               // SVSWATCH was removed because nothing was using it, but better be sure
+               return false;
+       }
+       else if (cmd == "PUSH")
+       {
+               if ((params.size() != 2) || (!this->MyRoot))
+                       return false; // Huh?
+
+               irc::tokenstream ts(params.back());
+
+               std::string srcstr;
+               ts.GetToken(srcstr);
+               srcstr.erase(0, 1);
+
+               std::string token;
+               ts.GetToken(token);
+
+               // See if it's a numeric being sent to the target via PUSH
+               unsigned int numeric_number = 0;
+               if (token.length() == 3)
+                       numeric_number = ConvToInt(token);
+
+               if ((numeric_number > 0) && (numeric_number < 1000))
+               {
+                       // It's a numeric, translate to NUM
+
+                       // srcstr must be a valid server name
+                       TreeServer* const numericsource = Utils->FindServer(srcstr);
+                       if (!numericsource)
+                       {
+                               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Unable to translate PUSH numeric %s to user %s from 1202 protocol server %s: source \"%s\" doesn't exist", token.c_str(), params[0].c_str(), this->MyRoot->GetName().c_str(), srcstr.c_str());
+                               return false;
+                       }
+
+                       cmd = "NUM";
+
+                       // Second parameter becomes the target uuid
+                       params[0].swap(params[1]);
+                       // Replace first param (now the PUSH payload, not needed) with the source sid
+                       params[0] = numericsource->GetID();
+
+                       params.push_back(InspIRCd::Format("%03u", numeric_number));
+
+                       // Ignore the nickname in the numeric in PUSH
+                       ts.GetToken(token);
+
+                       // Rest of the tokens are the numeric parameters, add them to NUM
+                       while (ts.GetToken(token))
+                               params.push_back(token);
+               }
+               else if ((token == "PRIVMSG") || (token == "NOTICE"))
+               {
+                       // Command is a PRIVMSG/NOTICE
+                       cmd.swap(token);
+
+                       // Check if the PRIVMSG/NOTICE target is a nickname
+                       ts.GetToken(token);
+                       if (token.c_str()[0] == '#')
+                       {
+                               ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Unable to translate PUSH %s to user %s from 1202 protocol server %s, target \"%s\"", cmd.c_str(), params[0].c_str(), this->MyRoot->GetName().c_str(), token.c_str());
+                               return false;
+                       }
+
+                       // Replace second parameter with the message
+                       ts.GetToken(params[1]);
+               }
+               else
+               {
+                       ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Unable to translate PUSH to user %s from 1202 protocol server %s", params[0].c_str(), this->MyRoot->GetName().c_str());
+                       return false;
+               }
+
+               return true;
+       }
 
        return true; // Passthru
 }