include/ctables.h

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #ifndef __CTABLES_H__
  15 #define __CTABLES_H__
  16
  17
  18 #include "inspircd_config.h"
  19 #include "hash_map.h"
  20 #include "base.h"
  21
  22 /* Forward declarations - required */
  23 class userrec;
  24 class InspIRCd;
  25
  26 /** Used to indicate command success codes
  27  */
  28 enum CmdResult
  29 {
  30         CMD_FAILURE = 0,        /* Command exists, but failed */
  31         CMD_SUCCESS = 1,        /* Command exists, and succeeded */
  32         CMD_INVALID = 2,        /* Command doesnt exist at all! */
  33         CMD_USER_DELETED = 3    /* User was deleted - DEPRECIATED */
  34 };
  35
  36 enum TranslateType
  37 {
  38         TR_END,                 /* End of known parameters, everything after this is TR_TEXT */
  39         TR_TEXT,                /* Raw text, leave as-is */
  40         TR_NICK,                /* Nickname, translate to UUID for server->server */
  41         TR_NICKLIST,            /* Comma seperated nickname list, translate to UUIDs */
  42         TR_SPACENICKLIST        /* Space seperated nickname list, translate to UUIDs */
  43 };
  44
  45 /** For commands which should not be replicated to other
  46  * servers, we usually return CMD_FAILURE. this isnt readable,
  47  * so we define this alias for CMD_FAILURE called
  48  * CMD_LOCALONLY, which of course does the same thing but is
  49  * much more readable.
  50  */
  51 #define CMD_LOCALONLY CMD_FAILURE
  52
  53
  54 /** A structure that defines a command. Every command available
  55  * in InspIRCd must be defined as derived from Command.
  56  */
  57 class CoreExport Command : public Extensible
  58 {
  59  protected:
  60         /** Owner/Creator object
  61          */
  62         InspIRCd* ServerInstance;
  63  public:
  64         /** Command name
  65         */
  66          std::string command;
  67         /** User flags needed to execute the command or 0
  68          */
  69         char flags_needed;
  70         /** Minimum number of parameters command takes
  71         */
  72         int min_params;
  73         /** used by /stats m
  74          */
  75         long double use_count;
  76         /** used by /stats m
  77          */
  78         long double total_bytes;
  79         /** used for resource tracking between modules
  80          */
  81         std::string source;
  82         /** True if the command is disabled to non-opers
  83          */
  84         bool disabled;
  85         /** True if the command can be issued before registering
  86          */
  87         bool works_before_reg;
  88         /** Syntax string for the command, displayed if non-empty string.
  89          * This takes place of the text in the 'not enough parameters' numeric.
  90          */
  91         std::string syntax;
  92
  93         std::vector<TranslateType> translation;
  94
  95         /** Create a new command.
  96          * @param Instance Pointer to creator class
  97          * @param cmd Command name. This must be UPPER CASE.
  98          * @param flags User modes required to execute the command.
  99          * For oper only commands, set this to 'o', otherwise use 0.
 100          * @param minpara Minimum parameters required for the command.
 101          * @param before_reg If this is set to true, the command will
 102          * be allowed before the user is 'registered' (has sent USER,
 103          * NICK, optionally PASS, and been resolved).
 104          */
 105         Command(InspIRCd* Instance, const std::string &cmd, char flags, int minpara, int before_reg = false) : ServerInstance(Instance), command(cmd), flags_needed(flags), min_params(minpara), disabled(false), works_before_reg(before_reg)
 106         {
 107                 use_count = 0;
 108                 total_bytes = 0;
 109                 source = "<core>";
 110                 syntax = "";
 111                 translation.clear();
 112         }
 113
 114         /** Handle the command from a user.
 115          * @param parameters The parameters for the command.
 116          * @param pcnt The number of parameters available in 'parameters'
 117          * @param user The user who issued the command.
 118          * @return Return CMD_SUCCESS on success, or CMD_FAILURE on failure.
 119          * If the command succeeds but should remain local to this server,
 120          * return CMD_LOCALONLY.
 121          */
 122         virtual CmdResult Handle(const char** parameters, int pcnt, userrec* user) = 0;
 123
 124         /** Handle an internal request from another command, the core, or a module
 125          * @param Command ID
 126          * @param Zero or more parameters, whos form is specified by the command ID.
 127          * @return Return CMD_SUCCESS on success, or CMD_FAILURE on failure.
 128          * If the command succeeds but should remain local to this server,
 129          * return CMD_LOCALONLY.
 130          */
 131         virtual CmdResult HandleInternal(const unsigned int id, const std::deque<classbase*> &params)
 132         {
 133                 return CMD_INVALID;
 134         }
 135
 136         /** Handle the command from a server.
 137          * Not currently used in this version of InspIRCd.
 138          * @param parameters The parameters given
 139          * @param pcnt The number of parameters available
 140          * @param servername The server name which issued the command
 141          * @return Return CMD_SUCCESS on success, or CMD_FAILURE on failure.
 142          * If the command succeeds but should remain local to this server,
 143          * return CMD_LOCALONLY.
 144          */
 145         virtual CmdResult HandleServer(const char** parameters, int pcnt, const std::string &servername)
 146         {
 147                 return CMD_INVALID;
 148         }
 149
 150         /** Disable or enable this command.
 151          * @param setting True to disable the command.
 152          */
 153         void Disable(bool setting)
 154         {
 155                 disabled = setting;
 156         }
 157
 158         /** Obtain this command's disable state.
 159          * @return true if the command is currently disabled
 160          * (disabled commands can be used only by operators)
 161          */
 162         bool IsDisabled()
 163         {
 164                 return disabled;
 165         }
 166
 167         /** @return true if the command works before registration.
 168          */
 169         bool WorksBeforeReg()
 170         {
 171                 return works_before_reg;
 172         }
 173
 174         /** Standard constructor gubbins
 175          */
 176         virtual ~Command() {}
 177 };
 178
 179 /** A hash of commands used by the core
 180  */
 181 typedef nspace::hash_map<std::string,Command*> Commandable;
 182
 183 #define TRANSLATE1(x1)  translation.push_back(x1);
 184 #define TRANSLATE2(x1,x2)  translation.push_back(x1);translation.push_back(x2);
 185 #define TRANSLATE3(x1,x2,x3)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);
 186 #define TRANSLATE4(x1,x2,x3,x4)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);
 187 #define TRANSLATE5(x1,x2,x3,x4,x5)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
 188         translation.push_back(x5);
 189 #define TRANSLATE6(x1,x2,x3,x4,x5,x6)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
 190         translation.push_back(x5);translation.push_back(x6);
 191 #define TRANSLATE7(x1,x2,x3,x4,x5,x6,x7)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
 192         translation.push_back(x5);translation.push_back(x6);translation.push_back(x7);
 193 #define TRANSLATE8(x1,x2,x3,x4,x5,x6,x7,x8)  translation.push_back(x1);translation.push_back(x2);translation.push_back(x3);translation.push_back(x4);\
 194         translation.push_back(x5);translation.push_back(x6);translation.push_back(x7);translation.push_back(x8);
 195
 196 #endif
 197