]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_helpop.cpp
Various improvements for the helpop module.
[user/henk/code/inspircd.git] / src / modules / m_helpop.cpp
index bae4e73aefd1085cf1bea1e66bd7821419949c91..a34e3ff9407889b523eee56950ff28fe0ac5d772 100644 (file)
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
- *                       E-mail:
- *                <brain@chatspike.net>
- *               <Craig@chatspike.net>
- *     
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- *            the file COPYING for details.
+ *   Copyright (C) 2013-2015 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2013, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
+ *   Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2006-2007 Craig Edwards <brain@inspircd.org>
  *
- * ---------------------------------------------------
+ * 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
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "helperfuncs.h"
 
-// Global Vars
-ConfigReader *helpop;
-Server *Srv;
+#include "inspircd.h"
+#include "modules/whois.h"
 
-void handle_helpop(char**, int, userrec*);
-bool do_helpop(char**, int, userrec*);
-void sendtohelpop(userrec*, int, char**);
+enum
+{
+       // From UnrealIRCd.
+       RPL_WHOISHELPOP = 310,
+
+       // From ircd-ratbox.
+       ERR_HELPNOTFOUND = 524,
+       RPL_HELPSTART = 704,
+       RPL_HELPTXT = 705,
+       RPL_ENDOFHELP = 706
+};
 
+typedef std::vector<std::string> HelpMessage;
 
-/* $ModDesc: /helpop Command, Works like Unreal helpop */
+typedef std::map<std::string, HelpMessage, irc::insensitive_swo> HelpMap;
 
-void handle_helpop(char **parameters, int pcnt, userrec *user)
+class CommandHelpop : public Command
 {
-       char a[MAXBUF];
-       std::string output = " ";
+ private:
+       const std::string startkey;
 
-       if (pcnt < 1) {
-               do_helpop(NULL,pcnt,user);
-               return;
-       }
+ public:
+       HelpMap help;
+       std::string nohelp;
 
-       if (parameters[0][0] == '!')
+       CommandHelpop(Module* Creator)
+               : Command(Creator, "HELPOP", 0)
+               , startkey("start")
        {
-               // Force send to all +h users
-               sendtohelpop(user, pcnt, parameters);
-       } else if (parameters[0][0] == '?') {
-               // Force to the helpop system with no forward if not found.
-                if (do_helpop(parameters, pcnt, user) == false) {
-                        // Not handled by the Database, Tell the user, and forward.
-                        for (int i = 1; output != ""; i++)
-                        {
-                                snprintf(a,MAXBUF,"line%d",i);
-                                output = helpop->ReadValue("nohelp", std::string(a), 0);
-                               if(output != "") {
-                                       Srv->SendTo(NULL,user,"290 "+std::string(user->nick)+" :"+output);
-                               }
-                        }
-                }
-       } else {
-               // Check with the helpop database, if not found send to +h
-               if (do_helpop(parameters, pcnt, user) == false) {
-                       // Not handled by the Database, Tell the user, and forward.
-                       for (int i = 1; output != ""; i++)
-                       {
-                               snprintf(a,MAXBUF,"line%d",i);
-                                       output = helpop->ReadValue("nohelpo", std::string(a), 0);
-                               if (output != "") {                     
-                                       Srv->SendTo(NULL,user,"290 "+std::string(user->nick)+" :"+output);
-                               }
-                       }
-                       // Forward.
-                       sendtohelpop(user, pcnt, parameters);
-               }
+               syntax = "<any-text>";
        }
-}
 
-bool do_helpop(char **parameters, int pcnt, userrec *src)
-{
-       char *search;
-       std::string output = " "; // a fix bought to you by brain :p
-       char a[MAXBUF];
-
-       if (!parameters) {
-               search = "start";
-       }
-       else {
-               search = parameters[0];
-       }
-
-       if (search[0] == '?') {
-               search++;
-       }
-
-        // FIX by brain: make the string lowercase, ConfigReader is
-        // case sensitive
-        char lower[MAXBUF];
-        strlcpy(lower,search,MAXBUF);
-        for (int t = 0; t < strlen(lower); t++)
-                lower[t] = tolower(lower[t]);
-
-
-       int nlines = 0;
-       for (int i = 1; output != ""; i++)
+       CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE
        {
-               snprintf(a,MAXBUF,"line%d",i);
-               output = helpop->ReadValue(lower, a, 0);
-               if (output != "") {
-                       Srv->SendTo(NULL,src,"290 "+std::string(src->nick)+" :"+output);
-                       nlines++;
+               const std::string& topic = parameters.empty() ? startkey : parameters[0];
+               HelpMap::const_iterator titer = help.find(topic);
+               if (titer == help.end())
+               {
+                       user->WriteNumeric(ERR_HELPNOTFOUND, topic, nohelp);
+                       return CMD_FAILURE;
                }
-       }
-       return (nlines>0);
-}
-
-
 
-void sendtohelpop(userrec *src, int pcnt, char **params)
-{
-       char* first = params[0];
-       if (first[0] == '!') { first++; }
-       std::string line = "*** HELPOPS - From "+std::string(src->nick)+": "+std::string(first)+" ";
-       for (int i = 1; i < pcnt; i++)
-       {
-               line = line + std::string(params[i]) + " ";
+               user->WriteNumeric(RPL_HELPSTART, topic, InspIRCd::Format("*** Help for %s", topic.c_str()));
+               for (HelpMessage::const_iterator liter = titer->second.begin(); liter != titer->second.end(); ++liter)
+                       user->WriteNumeric(RPL_HELPTXT, topic, *liter);
+               user->WriteNumeric(RPL_ENDOFHELP, topic, "*** End of help");
+               return CMD_SUCCESS;
        }
-       Srv->SendToModeMask("oh",WM_AND,line);
-}
+};
 
-class ModuleHelpop : public Module
+class ModuleHelpop
+       : public Module
+       , public Whois::EventListener
 {
  private:
-       ConfigReader *conf;
-       std::string  h_file;
-
- public:
-       ModuleHelpop()
-       {
-               Srv  = new Server;
-               conf = new ConfigReader;
-
-               h_file = conf->ReadValue("helpop", "file", 0);
-
-               if (h_file == "") {
-                       log(DEFAULT,"m_helpop: Helpop file not Specified.");
-                       return;
-               }
-
-               helpop = new ConfigReader(h_file);
-
-               if ((helpop->ReadValue("nohelp",  "line1", 0) == "") || 
-                    (helpop->ReadValue("nohelpo", "line1", 0) == "") ||
-                    (helpop->ReadValue("start",   "line1", 0) == ""))
+               CommandHelpop cmd;
+               SimpleUserModeHandler ho;
+
+       public:
+               ModuleHelpop()
+                       : Whois::EventListener(this)
+                       , cmd(this)
+                       , ho(this, "helpop", 'h', true)
                {
-                       log(DEFAULT,"m_helpop: Helpop file is missing important entries. Please check the example conf.");
-                       return;
                }
 
-               if (!Srv->AddExtendedMode('h',MT_CLIENT,true,0,0))
+               void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
                {
-                       Srv->Log(DEFAULT,"Unable to claim the +h usermode.");
-                       return;
-               }
-
-               // Loads of comments, untill supported properly.
-               Srv->AddCommand("HELPOP",handle_helpop,0,0,"m_helpop.so");
-
-       }
+                       size_t longestkey = 0;
+
+                       HelpMap newhelp;
+                       ConfigTagList tags = ServerInstance->Config->ConfTags("helpop");
+                       if (tags.first == tags.second)
+                               throw ModuleException("You have loaded the helpop module but not configured any help topics!");
+
+                       for (ConfigIter i = tags.first; i != tags.second; ++i)
+                       {
+                               ConfigTag* tag = i->second;
+
+                               // Attempt to read the help key.
+                               const std::string key = tag->getString("key");
+                               if (key.empty())
+                                       throw ModuleException(InspIRCd::Format("<helpop:key> is empty at %s", tag->getTagLocation().c_str()));
+                               else if (irc::equals(key, "index"))
+                                       throw ModuleException(InspIRCd::Format("<helpop:key> is set to \"index\" which is reserved at %s", tag->getTagLocation().c_str()));
+                               else if (key.length() > longestkey)
+                                       longestkey = key.length();
+
+                               // Attempt to read the help value.
+                               std::string value;
+                               if (!tag->readString("value", value, true) || value.empty())
+                                       throw ModuleException(InspIRCd::Format("<helpop:value> is empty at %s", tag->getTagLocation().c_str()));
+
+                               // Parse the help body. Empty lines are replaced with a single
+                               // space because some clients are unable to show blank lines.
+                               HelpMessage helpmsg;
+                               irc::sepstream linestream(value, '\n', true);
+                               for (std::string line; linestream.GetToken(line); )
+                                       helpmsg.push_back(line.empty() ? " " : line);
+                               newhelp[key] = helpmsg;
+                       }
+
+                       // The number of items we can fit on a page.
+                       HelpMessage& indexmsg = newhelp["index"];
+                       size_t maxcolumns = 80 / (longestkey + 2);
+                       for (HelpMap::iterator iter = newhelp.begin(); iter != newhelp.end(); )
+                       {
+                               std::string indexline;
+                               for (size_t column = 0; column != maxcolumns; )
+                               {
+                                       if (iter == newhelp.end())
+                                               break;
+
+                                       indexline.append(iter->first);
+                                       if (++column != maxcolumns)
+                                               indexline.append(longestkey - iter->first.length() + 2, ' ');
+                                       iter++;
+                               }
+                               indexmsg.push_back(indexline);
+                       }
+                       cmd.help.swap(newhelp);
 
-       virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
-       {
-               if ((modechar == 'h') && (type == MT_CLIENT))
-               {
-                       return 1;
+                       ConfigTag* tag = ServerInstance->Config->ConfValue("helpmsg");
+                       cmd.nohelp = tag->getString("nohelp", "There is no help for the topic you searched for. Please try again.", 1);
                }
-               return 0;
-       }
 
-       virtual void OnWhois(userrec* src, userrec* dst)
-       {
-               if (strchr(dst->modes,'h'))
+               void OnWhois(Whois::Context& whois) CXX11_OVERRIDE
                {
-                       Srv->SendTo(NULL,src,"310 "+std::string(src->nick)+" "+std::string(dst->nick)+" :is available for help.");
+                       if (whois.GetTarget()->IsModeSet(ho))
+                               whois.SendLine(RPL_WHOISHELPOP, "is available for help.");
                }
-       }
-
-       virtual void OnOper(userrec* user)
-       {
-               char* modes[2];                 // only two parameters
-               modes[0] = user->nick;          // first parameter is the nick
-               modes[1] = "+h";                // second parameter is the mode
-               Srv->SendMode(modes,2,user);    // send these, forming the command "MODE <nick> +h"
-       }
-       
-       virtual ~ModuleHelpop()
-       {
-               delete Srv;
-               delete conf;
-               delete helpop;
-       }
-       
-       virtual Version GetVersion()
-       {
-               return Version(1,0,0,1,VF_STATIC|VF_VENDOR);
-       }
-};
 
-class ModuleHelpopFactory : public ModuleFactory
-{
- public:
-       ModuleHelpopFactory()
-       {
-       }
-       
-       ~ModuleHelpopFactory()
-       {
-       }
-       
-       virtual Module * CreateModule()
-       {
-               return new ModuleHelpop;
-       }
-       
+               Version GetVersion() CXX11_OVERRIDE
+               {
+                       return Version("Provides help to users via the HELPOP command", VF_VENDOR);
+               }
 };
 
-extern "C" void * init_module( void )
-{
-       return new ModuleHelpopFactory;
-}
+MODULE_INIT(ModuleHelpop)