+ if (proto_version < PROTO_INSPIRCD_30)
+ {
+ if (command == "IJOIN")
+ {
+ // Convert
+ // :<uid> IJOIN <chan> <membid> [<ts> [<flags>]]
+ // to
+ // :<sid> FJOIN <chan> <ts> + [<flags>],<uuid>
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ // Erase membership id first
+ line.erase(c, d-c);
+ if (d == std::string::npos)
+ {
+ // No TS or modes in the command
+ // :22DAAAAAB IJOIN #chan
+ const std::string channame(line, b+1, c-b-1);
+ Channel* chan = ServerInstance->FindChan(channame);
+ if (!chan)
+ return;
+
+ line.push_back(' ');
+ line.append(ConvToStr(chan->age));
+ line.append(" + ,");
+ }
+ else
+ {
+ d = line.find(' ', c + 1);
+ if (d == std::string::npos)
+ {
+ // TS present, no modes
+ // :22DAAAAAC IJOIN #chan 12345
+ line.append(" + ,");
+ }
+ else
+ {
+ // Both TS and modes are present
+ // :22DAAAAAC IJOIN #chan 12345 ov
+ std::string::size_type e = line.find(' ', d + 1);
+ if (e != std::string::npos)
+ line.erase(e);
+
+ line.insert(d, " +");
+ line.push_back(',');
+ }
+ }
+
+ // Move the uuid to the end and replace the I with an F
+ line.append(line.substr(1, 9));
+ line.erase(4, 6);
+ line[5] = 'F';
+ }
+ else if (command == "RESYNC")
+ return;
+ else if (command == "METADATA")
+ {
+ // Drop TS for channel METADATA, translate METADATA operquit into an OPERQUIT command
+ // :sid METADATA #target TS extname ...
+ // A B C D
+ if (b == std::string::npos)
+ return;
+
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ if (d == std::string::npos)
+ return;
+
+ if (line[b + 1] == '#')
+ {
+ // We're sending channel metadata
+ line.erase(c, d-c);
+ }
+ else if (!line.compare(c, d-c, " operquit", 9))
+ {
+ // ":22D METADATA 22DAAAAAX operquit :message" -> ":22DAAAAAX OPERQUIT :message"
+ line = ":" + line.substr(b+1, c-b) + "OPERQUIT" + line.substr(d);
+ }
+ }
+ else if (command == "FTOPIC")
+ {
+ // Drop channel TS for FTOPIC
+ // :sid FTOPIC #target TS TopicTS setter :newtopic
+ // A B C D E F
+ // :uid FTOPIC #target TS TopicTS :newtopic
+ // A B C D E
+ if (b == std::string::npos)
+ return;
+
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ if (d == std::string::npos)
+ return;
+
+ std::string::size_type e = line.find(' ', d + 1);
+ if (line[e+1] == ':')
+ {
+ line.erase(c, e-c);
+ line.erase(a+1, 1);
+ }
+ else
+ line.erase(c, d-c);
+ }
+ else if ((command == "PING") || (command == "PONG"))
+ {
+ // :22D PING 20D
+ if (line.length() < 13)
+ return;
+
+ // Insert the source SID (and a space) between the command and the first parameter
+ line.insert(10, line.substr(1, 4));
+ }
+ else if (command == "OPERTYPE")
+ {
+ std::string::size_type colon = line.find(':', b);
+ if (colon != std::string::npos)
+ {
+ for (std::string::iterator i = line.begin()+colon; i != line.end(); ++i)
+ {
+ if (*i == ' ')
+ *i = '_';
+ }
+ line.erase(colon, 1);
+ }
+ }
+ else if (command == "INVITE")
+ {
+ // :22D INVITE 22DAAAAAN #chan TS ExpirationTime
+ // A B C D E
+ if (b == std::string::npos)
+ return;
+
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ if (d == std::string::npos)
+ return;
+
+ std::string::size_type e = line.find(' ', d + 1);
+ // If there is no expiration time then everything will be erased from 'd'
+ line.erase(d, e-d);
+ }
+ else if (command == "FJOIN")
+ {
+ // Strip membership ids
+ // :22D FJOIN #chan 1234 +f 4:3 :o,22DAAAAAB:15 o,22DAAAAAA:15
+ // :22D FJOIN #chan 1234 +f 4:3 o,22DAAAAAB:15
+ // :22D FJOIN #chan 1234 +Pf 4:3 :
+
+ // If the last parameter is prefixed by a colon then it's a userlist which may have 0 or more users;
+ // if it isn't, then it is a single member
+ std::string::size_type spcolon = line.find(" :");
+ if (spcolon != std::string::npos)
+ {
+ spcolon++;
+ // Loop while there is a ':' in the userlist, this is never true if the channel is empty
+ std::string::size_type pos = std::string::npos;
+ while ((pos = line.rfind(':', pos-1)) > spcolon)
+ {
+ // Find the next space after the ':'
+ std::string::size_type sp = line.find(' ', pos);
+ // Erase characters between the ':' and the next space after it, including the ':' but not the space;
+ // if there is no next space, everything will be erased between pos and the end of the line
+ line.erase(pos, sp-pos);
+ }
+ }
+ else
+ {
+ // Last parameter is a single member
+ std::string::size_type sp = line.rfind(' ');
+ std::string::size_type colon = line.find(':', sp);
+ line.erase(colon);
+ }
+ }
+ else if (command == "KICK")
+ {
+ // Strip membership id if the KICK has one
+ if (b == std::string::npos)
+ return;
+
+ std::string::size_type c = line.find(' ', b + 1);
+ if (c == std::string::npos)
+ return;
+
+ std::string::size_type d = line.find(' ', c + 1);
+ if ((d < line.size()-1) && (original_line[d+1] != ':'))
+ {
+ // There is a third parameter which doesn't begin with a colon, erase it
+ std::string::size_type e = line.find(' ', d + 1);
+ line.erase(d, e-d);
+ }
+ }
+ else if (command == "SINFO")
+ {
+ // :22D SINFO version :InspIRCd-3.0
+ // 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> ...] :description
+ // 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(" :");
+
+ TreeServer* const source = Utils->FindServerID(line.substr(spcolon-3, 3));
+ if (!source)
+ return;
+
+ line = CmdBuilder(source, "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);
+ }
+ else if (command == "TAGMSG")
+ {
+ // Drop IRCv3 tag messages as v2 has no message tag support.
+ return;
+ }
+ }
+ WriteLineNoCompat(line);
+ return;