]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - include/numericbuilder.h
Remove the Kiwi links from the readme.
[user/henk/code/inspircd.git] / include / numericbuilder.h
index 371f275a91b44afc694204afd708d74259cfe9b7..a077c666deaa9ff67e1d1261281a487d2b492d1e 100644 (file)
@@ -1,7 +1,8 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
- *   Copyright (C) 2015 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2018-2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2015-2016 Attila Molnar <attilamolnar@hush.com>
  *
  * This file is part of InspIRCd.  InspIRCd is free software: you can
  * redistribute it and/or modify it under the terms of the GNU General Public
 namespace Numeric
 {
        class WriteNumericSink;
+       class WriteRemoteNumericSink;
 
        template <char Sep, bool SendEmpty, typename Sink>
        class GenericBuilder;
 
        template <char Sep = ',', bool SendEmpty = false>
        class Builder;
+
+       template <unsigned int NumStaticParams, bool SendEmpty, typename Sink>
+       class GenericParamBuilder;
+
+       template <unsigned int NumStaticParams, bool SendEmpty = false>
+       class ParamBuilder;
 }
 
 class Numeric::WriteNumericSink
@@ -40,9 +48,25 @@ class Numeric::WriteNumericSink
        {
        }
 
-       void operator()(unsigned int numeric, const std::string& params) const
+       void operator()(Numeric& numeric) const
+       {
+               user->WriteNumeric(numeric);
+       }
+};
+
+class Numeric::WriteRemoteNumericSink
+{
+       User* const user;
+
+ public:
+       WriteRemoteNumericSink(User* u)
+               : user(u)
+       {
+       }
+
+       void operator()(Numeric& numeric) const
        {
-               user->WriteNumeric(numeric, params);
+               user->WriteRemoteNumeric(numeric);
        }
 };
 
@@ -50,45 +74,43 @@ template <char Sep, bool SendEmpty, typename Sink>
 class Numeric::GenericBuilder
 {
        Sink sink;
-       std::string data;
-       const unsigned int numeric;
+       Numeric numeric;
        const std::string::size_type max;
-       std::string::size_type beginpos;
 
        bool HasRoom(const std::string::size_type additional) const
        {
-               return (data.size() + additional <= max);
+               return (numeric.GetParams().back().size() + additional <= max);
        }
 
  public:
        GenericBuilder(Sink s, unsigned int num, bool addparam = true, size_t additionalsize = 0)
                : sink(s)
                , numeric(num)
-               , max(ServerInstance->Config->Limits.MaxLine - ServerInstance->Config->ServerName.size() - additionalsize - 9)
+               , max(ServerInstance->Config->Limits.MaxLine - ServerInstance->Config->GetServerName().size() - additionalsize - 10)
        {
                if (addparam)
-                       data.push_back(':');
-               SaveBeginPos();
+                       numeric.push(std::string());
        }
 
-       std::string& GetNumeric() { return data; }
+       Numeric& GetNumeric() { return numeric; }
 
        void Add(const std::string& entry)
        {
                if (!HasRoom(entry.size()))
                        Flush();
-               data.append(entry).push_back(Sep);
+               numeric.GetParams().back().append(entry).push_back(Sep);
        }
 
        void Add(const std::string& entry1, const std::string& entry2)
        {
                if (!HasRoom(entry1.size() + entry2.size()))
                        Flush();
-               data.append(entry1).append(entry2).push_back(Sep);
+               numeric.GetParams().back().append(entry1).append(entry2).push_back(Sep);
        }
 
        void Flush()
        {
+               std::string& data = numeric.GetParams().back();
                if (IsEmpty())
                {
                        if (!SendEmpty)
@@ -99,13 +121,11 @@ class Numeric::GenericBuilder
                        data.erase(data.size()-1);
                }
 
-               sink(numeric, data);
-               if (data.size() > beginpos)
-                       data.erase(beginpos);
+               sink(numeric);
+               data.clear();
        }
 
-       bool IsEmpty() const { return (data.size() == beginpos); }
-       void SaveBeginPos() { beginpos = data.size(); }
+       bool IsEmpty() const { return (numeric.GetParams().back().empty()); }
 };
 
 template <char Sep, bool SendEmpty>
@@ -117,3 +137,184 @@ class Numeric::Builder : public GenericBuilder<Sep, SendEmpty, WriteNumericSink>
        {
        }
 };
+
+template <unsigned int NumStaticParams, bool SendEmpty, typename Sink>
+class Numeric::GenericParamBuilder
+{
+       Sink sink;
+       Numeric numeric;
+       std::string::size_type currlen;
+       std::string::size_type max;
+
+       bool HasRoom(const std::string::size_type additional) const
+       {
+               return (currlen + additional <= max);
+       }
+
+ public:
+       GenericParamBuilder(Sink s, unsigned int num, size_t additionalsize)
+               : sink(s)
+               , numeric(num)
+               , currlen(0)
+               , max(ServerInstance->Config->Limits.MaxLine - ServerInstance->Config->GetServerName().size() - additionalsize - 10)
+       {
+       }
+
+       void AddStatic(const std::string& entry)
+       {
+               max -= (entry.length() + 1);
+               numeric.GetParams().push_back(entry);
+       }
+
+       void Add(const std::string& entry)
+       {
+               if (!HasRoom(entry.size()))
+                       Flush();
+
+               currlen += entry.size() + 1;
+               numeric.GetParams().push_back(entry);
+       }
+
+       void Flush()
+       {
+               if ((!SendEmpty) && (IsEmpty()))
+                       return;
+
+               sink(numeric);
+               currlen = 0;
+               numeric.GetParams().erase(numeric.GetParams().begin() + NumStaticParams, numeric.GetParams().end());
+       }
+
+       bool IsEmpty() const { return (numeric.GetParams().size() <= NumStaticParams); }
+};
+
+template <unsigned int NumStaticParams, bool SendEmpty>
+class Numeric::ParamBuilder : public GenericParamBuilder<NumStaticParams, SendEmpty, WriteNumericSink>
+{
+ public:
+       ParamBuilder(LocalUser* user, unsigned int num)
+               : ::Numeric::GenericParamBuilder<NumStaticParams, SendEmpty, WriteNumericSink>(WriteNumericSink(user), num, user->nick.size())
+       {
+       }
+};
+
+namespace Numerics
+{
+       class CannotSendTo;
+       class InvalidModeParameter;
+       class NoSuchChannel;
+       class NoSuchNick;
+}
+
+/** Builder for the ERR_CANNOTSENDTOCHAN and ERR_CANTSENDTOUSER numerics. */
+class Numerics::CannotSendTo : public Numeric::Numeric
+{
+ public:
+       CannotSendTo(Channel* chan, const std::string& message)
+               : Numeric(ERR_CANNOTSENDTOCHAN)
+       {
+               push(chan->name);
+               push(message);
+       }
+
+       CannotSendTo(Channel* chan, const std::string& what, ModeHandler* mh)
+               : Numeric(ERR_CANNOTSENDTOCHAN)
+       {
+               push(chan->name);
+               push(InspIRCd::Format("You cannot send %s to this channel whilst the +%c (%s) mode is set.",
+                       what.c_str(), mh->GetModeChar(), mh->name.c_str()));
+       }
+
+       CannotSendTo(Channel* chan, const std::string& what, char extban, const std::string& extbandesc)
+               : Numeric(ERR_CANNOTSENDTOCHAN)
+       {
+               push(chan->name);
+               push(InspIRCd::Format("You cannot send %s to this channel whilst %s %c: (%s) extban is set matching you.",
+                       what.c_str(), strchr("AEIOUaeiou", extban) ? "an" : "a", extban, extbandesc.c_str()));
+       }
+
+       CannotSendTo(User* user, const std::string& message)
+               : Numeric(ERR_CANTSENDTOUSER)
+       {
+               push(user->registered & REG_NICK ? user->nick : "*");
+               push(message);
+       }
+
+       CannotSendTo(User* user, const std::string& what, ModeHandler* mh, bool self = false)
+               : Numeric(ERR_CANTSENDTOUSER)
+       {
+               push(user->registered & REG_NICK ? user->nick : "*");
+               push(InspIRCd::Format("You cannot send %s to this user whilst %s have the +%c (%s) mode set.",
+                       what.c_str(), self ? "you" : "they", mh->GetModeChar(), mh->name.c_str()));
+       }
+};
+
+/* Builder for the ERR_INVALIDMODEPARAM numeric. */
+class Numerics::InvalidModeParameter : public Numeric::Numeric
+{
+ private:
+       void push_message(ModeHandler* mode, const std::string& message)
+       {
+               if (!message.empty())
+               {
+                       // The caller has specified their own message.
+                       push(message);
+                       return;
+               }
+
+               const std::string& syntax = mode->GetSyntax();
+               if (!syntax.empty())
+               {
+                       // If the mode has a syntax hint we include it in the message.
+                       push(InspIRCd::Format("Invalid %s mode parameter. Syntax: %s.", mode->name.c_str(), syntax.c_str()));
+               }
+               else
+               {
+                       // Otherwise, send it without.
+                       push(InspIRCd::Format("Invalid %s mode parameter.", mode->name.c_str()));
+               }
+       }
+
+ public:
+       InvalidModeParameter(Channel* chan, ModeHandler* mode, const std::string& parameter, const std::string& message = "")
+               : Numeric(ERR_INVALIDMODEPARAM)
+       {
+               push(chan->name);
+               push(mode->GetModeChar());
+               push(parameter);
+               push_message(mode, message);
+       }
+
+       InvalidModeParameter(User* user, ModeHandler* mode, const std::string& parameter, const std::string& message = "")
+               : Numeric(ERR_INVALIDMODEPARAM)
+       {
+               push(user->registered & REG_NICK ? user->nick : "*");
+               push(mode->GetModeChar());
+               push(parameter);
+               push_message(mode, message);
+       }
+};
+
+/** Builder for the ERR_NOSUCHCHANNEL numeric. */
+class Numerics::NoSuchChannel : public Numeric::Numeric
+{
+ public:
+       NoSuchChannel(const std::string& chan)
+               : Numeric(ERR_NOSUCHCHANNEL)
+       {
+               push(chan.empty() ? "*" : chan);
+               push("No such channel");
+       }
+};
+
+/** Builder for the ERR_NOSUCHNICK numeric. */
+class Numerics::NoSuchNick : public Numeric::Numeric
+{
+ public:
+       NoSuchNick(const std::string& nick)
+               : Numeric(ERR_NOSUCHNICK)
+       {
+               push(nick.empty() ? "*" : nick);
+               push("No such nick");
+       }
+};