* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
+ * InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
* This program is free but copyrighted software; see
- * the file COPYING for details.
+ * the file COPYING for details.
*
* ---------------------------------------------------
*/
-
#ifndef __MODULES_H
#define __MODULES_H
TYPE_OTHER
};
+enum MessageType {
+ MSG_PRIVMSG = 0,
+ MSG_NOTICE = 1
+};
+
#include "globals.h"
#include "dynamic.h"
#include "base.h"
#include <string>
#include <deque>
#include <sstream>
-#include <typeinfo>
#include "timer.h"
#include "mode.h"
#include "dns.h"
+/** If you change the module API, change this value.
+ * If you have enabled ipv6, the sizes of structs is
+ * different, and modules will be incompatible with
+ * ipv4 servers, so this value will be ten times as
+ * high on ipv6 servers.
+ */
+#define NATIVE_API_VERSION 11012
+#ifdef IPV6
+#define API_VERSION (NATIVE_API_VERSION * 10)
+#else
+#define API_VERSION (NATIVE_API_VERSION * 1)
+#endif
+
class ServerConfig;
-// Forward-delacare module for ModuleMessage etc
+/* Forward-delacare module for ModuleMessage etc
+ */
class Module;
/** Low level definition of a FileReader classes file cache area
*/
typedef std::map<std::string,Module*> featurelist;
+/** Holds a list of modules which implement an interface
+ */
+typedef std::deque<Module*> modulelist;
+
+/** Holds a list of all modules which implement interfaces, by interface name
+ */
+typedef std::map<std::string, std::pair<int, modulelist> > interfacelist;
+
/**
* This #define allows us to call a method in all
* loaded modules in a readable simple way, e.g.:
{ \
ServerInstance->modules[_i]->x ; \
} \
- catch (ModuleException& modexcept) \
+ catch (CoreException& modexcept) \
{ \
- log(DEBUG,"Module exception caught: %s",modexcept.GetReason()); \
+ ServerInstance->Log(DEFAULT,"Exception cought: %s",modexcept.GetReason()); \
} \
} \
}
{ \
z->modules[_i]->x ; \
} \
- catch (ModuleException& modexcept) \
+ catch (CoreException& modexcept) \
{ \
- ilog(z,DEBUG,"Module exception caught: %s",modexcept.GetReason()); \
+ z->Log(DEFAULT,"Exception cought: %s",modexcept.GetReason()); \
} \
} \
}
break; \
} \
} \
- catch (ModuleException& modexcept) \
+ catch (CoreException& modexcept) \
{ \
- log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
+ ServerInstance->Log(DEFAULT,"Exception cought: %s",modexcept.GetReason()); \
} \
} \
} \
break; \
} \
} \
- catch (ModuleException& modexcept) \
+ catch (CoreException& modexcept) \
{ \
- ilog(z,DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
+ z->Log(DEBUG,"Exception cought: %s",modexcept.GetReason()); \
} \
} \
} \
// useful macros
-#define IS_LOCAL(x) ((x->fd > -1) && (x->fd <= MAX_DESCRIPTORS))
-#define IS_REMOTE(x) (x->fd < 0)
-#define IS_MODULE_CREATED(x) (x->fd == FD_MAGIC_NUMBER)
+#define IS_LOCAL(x) ((x->GetFd() > -1) && (x->GetFd() <= MAX_DESCRIPTORS))
+#define IS_REMOTE(x) (x->GetFd() < 0)
+#define IS_MODULE_CREATED(x) (x->GetFd() == FD_MAGIC_NUMBER)
/** Holds a module's Version information
* The four members (set by the constructor only) indicate details as to the version number
class Version : public classbase
{
public:
- const int Major, Minor, Revision, Build, Flags;
- Version(int major, int minor, int revision, int build, int flags);
+ const int Major, Minor, Revision, Build, Flags, API;
+ Version(int major, int minor, int revision, int build, int flags, int api_ver);
};
/** The ModuleMessage class is the base class of Request and Event
* This class is used to represent a basic data structure which is passed
* between modules for safe inter-module communications.
*/
-class ModuleMessage : public classbase
+class ModuleMessage : public Extensible
{
public:
virtual ~ModuleMessage() {};
* be loaded. If this happens, the error message returned by ModuleException::GetReason will be displayed to the user
* attempting to load the module, or dumped to the console if the ircd is currently loading for the first time.
*/
-class ModuleException : public classbase
+class CoreException : public std::exception
{
- private:
+ protected:
/** Holds the error message to be displayed
*/
- std::string err;
+ const std::string err;
+ const std::string source;
public:
- /** Default constructor, just uses the error mesage 'Module threw an exception'.
+ /** Default constructor, just uses the error mesage 'Core threw an exception'.
*/
- ModuleException() : err("Module threw an exception") {}
+ CoreException() : err("Core threw an exception"), source("The core") {}
/** This constructor can be used to specify an error message before throwing.
*/
- ModuleException(std::string message) : err(message) {}
+ CoreException(const std::string &message) : err(message), source("The core") {}
+ /** This constructor can be used to specify an error message before throwing,
+ * and to specify the source of the exception.
+ */
+ CoreException(const std::string &message, const std::string &src) : err(message), source(src) {}
/** This destructor solves world hunger, cancels the world debt, and causes the world to end.
* Actually no, it does nothing. Never mind.
+ * @throws Nothing!
*/
- virtual ~ModuleException() {};
+ virtual ~CoreException() throw() {};
/** Returns the reason for the exception.
* The module should probably put something informative here as the user will see this upon failure.
*/
{
return err.c_str();
}
+
+ virtual const char* GetSource()
+ {
+ return source.c_str();
+ }
+};
+
+class ModuleException : public CoreException
+{
+ public:
+ /** Default constructor, just uses the error mesage 'Module threw an exception'.
+ */
+ ModuleException() : CoreException("Module threw an exception", "A Module") {}
+
+ /** This constructor can be used to specify an error message before throwing.
+ */
+ ModuleException(const std::string &message) : CoreException(message, "A Module") {}
+ /** This destructor solves world hunger, cancels the world debt, and causes the world to end.
+ * Actually no, it does nothing. Never mind.
+ * @throws Nothing!
+ */
+ virtual ~ModuleException() throw() {};
};
/** Priority types which can be returned from Module::Prioritize()
I_OnDecodeMetaData, I_ProtoSendMode, I_ProtoSendMetaData, I_OnWallops, I_OnChangeHost, I_OnChangeName, I_OnAddGLine,
I_OnAddZLine, I_OnAddQLine, I_OnAddKLine, I_OnAddELine, I_OnDelGLine, I_OnDelZLine, I_OnDelKLine, I_OnDelELine, I_OnDelQLine,
I_OnCleanup, I_OnUserPostNick, I_OnAccessCheck, I_On005Numeric, I_OnKill, I_OnRemoteKill, I_OnLoadModule, I_OnUnloadModule,
- I_OnBackgroundTimer, I_OnPreCommand, I_OnCheckReady, I_OnUserRrgister, I_OnRawMode, I_OnCheckInvite,
+ I_OnBackgroundTimer, I_OnPreCommand, I_OnCheckReady, I_OnUserRrgister, I_OnCheckInvite,
I_OnCheckKey, I_OnCheckLimit, I_OnCheckBan, I_OnStats, I_OnChangeLocalUserHost, I_OnChangeLocalUserGecos, I_OnLocalTopicChange,
- I_OnPostLocalTopicChange, I_OnEvent, I_OnRequest, I_OnOperCompre, I_OnGlobalOper, I_OnGlobalConnect, I_OnAddBan, I_OnDelBan,
+ I_OnPostLocalTopicChange, I_OnEvent, I_OnRequest, I_OnOperCompre, I_OnGlobalOper, I_OnPostConnect, I_OnAddBan, I_OnDelBan,
I_OnRawSocketAccept, I_OnRawSocketClose, I_OnRawSocketWrite, I_OnRawSocketRead, I_OnChangeLocalUserGECOS, I_OnUserRegister,
- I_OnOperCompare, I_OnChannelDelete, I_OnPostOper, I_OnSyncOtherMetaData, I_OnSetAway, I_OnCancelAway };
+ I_OnOperCompare, I_OnChannelDelete, I_OnPostOper, I_OnSyncOtherMetaData, I_OnSetAway, I_OnCancelAway, I_OnUserList,
+ I_OnPostCommand, I_OnPostJoin, I_OnWhoisLine, I_OnBuildExemptList, I_OnRawSocketConnect, I_OnGarbageCollect };
/** Base class for all InspIRCd modules
* This class is the base class for InspIRCd modules. All modules must inherit from this class,
*/
virtual void OnUserJoin(userrec* user, chanrec* channel);
+ /** Called after a user joins a channel
+ * Identical to OnUserJoin, but called immediately afterwards, when any linking module has
+ * seen the join.
+ * @param user The user who is joining
+ * @param channel The channel being joined
+ */
+ virtual void OnPostJoin(userrec* user, chanrec* channel);
+
/** Called when a user parts a channel.
* The details of the leaving user are available to you in the parameter userrec *user,
* and the details of the channel they have left is available in the variable chanrec *channel
* system. You should use it to reload any files so that your module keeps in step with the
* rest of the application. If a parameter is given, the core has done nothing. The module
* receiving the event can decide if this parameter has any relevence to it.
+ * @param user The user performing the rehash, if any -- if this is server initiated, the
+ * value of this variable will be NULL.
* @param parameter The (optional) parameter given to REHASH from the user.
*/
- virtual void OnRehash(const std::string ¶meter);
+ virtual void OnRehash(userrec* user, const std::string ¶meter);
/** Called when a raw command is transmitted or received.
* This method is the lowest level of handler available to a module. It will be called with raw
* processing on the actual channel record at this point, however the channel NAME will still be passed in
* char* cname, so that you could for example implement a channel blacklist or whitelist, etc.
* @param user The user joining the channel
- * @param cname The channel name being joined
+ * @param chan If the channel is a new channel, this will be NULL, otherwise it will be a pointer to the channel being joined
+ * @param cname The channel name being joined. For new channels this is valid where chan is not.
+ * @param privs A string containing the users privilages when joining the channel. For new channels this will contain "@".
+ * You may alter this string to alter the user's modes on the channel.
* @return 1 To prevent the join, 0 to allow it.
*/
- virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname);
+ virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname, std::string &privs);
/** Called whenever a user is about to be kicked.
* Returning a value of 1 from this function stops the process immediately, causing no
* @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
* @param text Changeable text being sent by the user
* @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
+ * @param exempt_list A list of users not to send to. For channel messages, this will usually contain just the sender.
+ * It will be ignored for private messages.
* @return 1 to deny the NOTICE, 0 to allow it
*/
- virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text,char status);
+ virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text,char status, CUList &exempt_list);
/** Called whenever a user is about to NOTICE A user or a channel, before any processing is done.
* Returning any nonzero value from this function stops the process immediately, causing no
* @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
* @param text Changeable text being sent by the user
* @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
+ * @param exempt_list A list of users not to send to. For channel notices, this will usually contain just the sender.
+ * It will be ignored for private notices.
* @return 1 to deny the NOTICE, 0 to allow it
*/
- virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text,char status);
+ virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text,char status, CUList &exempt_list);
+
+ /** Called whenever the server wants to build the exemption list for a channel, but is not directly doing a PRIVMSG or NOTICE.
+ * For example, the spanningtree protocol will call this event when passing a privmsg on (but not processing it directly).
+ * @param message_type The message type, either MSG_PRIVMSG or MSG_NOTICE
+ * @param chan The channel to build the exempt list of
+ * @param sender The original sender of the PRIVMSG or NOTICE
+ * @param status The status char to be used for the channel list
+ * @param exempt_list The exempt list to be populated
+ */
+ virtual void OnBuildExemptList(MessageType message_type, chanrec* chan, userrec* sender, char status, CUList &exempt_list);
/** Called before any nickchange, local or remote. This can be used to implement Q-lines etc.
* Please note that although you can see remote nickchanges through this function, you should
* @param text the text being sent by the user
* @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
*/
- virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status);
+ virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list);
/** Called after any NOTICE sent from a user.
* The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
* @param text the text being sent by the user
* @param status The status being used, e.g. NOTICE @#chan has status== '@', 0 to send to everyone.
*/
- virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status);
+ virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list);
/** Called after every MODE command sent from a user
* The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
/** Called whenever any command is about to be executed.
* This event occurs for all registered commands, wether they are registered in the core,
- * or another module, but it will not occur for invalid commands (e.g. ones which do not
- * exist within the command table). By returning 1 from this method you may prevent the
+ * or another module, and for invalid commands. Invalid commands may only be sent to this
+ * function when the value of validated is false. By returning 1 from this method you may prevent the
* command being executed. If you do this, no output is created by the core, and it is
* down to your module to produce any output neccessary.
* Note that unless you return 1, you should not destroy any structures (e.g. by using
* @param pcnt The nuimber of parameters passed to the command
* @param user the user issuing the command
* @param validated True if the command has passed all checks, e.g. it is recognised, has enough parameters, the user has permission to execute it, etc.
+ * @param original_line The entire original line as passed to the parser from the user
* @return 1 to block the command, 0 to allow
*/
- virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated);
+ virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line);
+
+ /** Called after any command has been executed.
+ * This event occurs for all registered commands, wether they are registered in the core,
+ * or another module, but it will not occur for invalid commands (e.g. ones which do not
+ * exist within the command table). The result code returned by the command handler is
+ * provided.
+ * @param command The command being executed
+ * @param parameters An array of array of characters containing the parameters for the command
+ * @param pcnt The nuimber of parameters passed to the command
+ * @param user the user issuing the command
+ * @param result The return code given by the command handler, one of CMD_SUCCESS or CMD_FAILURE
+ * @param original_line The entire original line as passed to the parser from the user
+ */
+ virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result, const std::string &original_line);
/** Called to check if a user who is connecting can now be allowed to register
* If any modules return false for this function, the user is held in the waiting
* Note that you should NOT delete the user record here by causing a disconnection!
* Use OnUserConnect for that instead.
* @param user The user registering
+ * @return 1 to indicate user quit, 0 to continue
*/
- virtual void OnUserRegister(userrec* user);
-
- /** Called whenever a mode character is processed.
- * Return 1 from this function to block the mode character from being processed entirely,
- * so that you may perform your own code instead. Note that this method allows you to override
- * modes defined by other modes, but this is NOT RECOMMENDED!
- * @param user The user who is sending the mode
- * @param chan The channel the mode is being sent to
- * @param mode The mode character being set
- * @param param The parameter for the mode or an empty string
- * @param adding true of the mode is being added, false if it is being removed
- * @param pcnt The parameter count for the mode (0 or 1)
- * @return 1 to deny the mode, 0 to allow
- */
- virtual int OnRawMode(userrec* user, chanrec* chan, char mode, const std::string ¶m, bool adding, int pcnt);
+ virtual int OnUserRegister(userrec* user);
/** Called whenever a user joins a channel, to determine if invite checks should go ahead or not.
* This method will always be called for each join, wether or not the channel is actually +i, and
* This method is triggered for all /STATS use, including stats symbols handled by the core.
* @param symbol the symbol provided to /STATS
* @param user the user issuing the /STATS command
- * @param results A string_list to append results into
+ * @param results A string_list to append results into. You should put all your results
+ * into this string_list, rather than displaying them directly, so that your handler will
+ * work when remote STATS queries are received.
* @return 1 to block the /STATS from being processed by the core, 0 to allow it
*/
virtual int OnStats(char symbol, userrec* user, string_list &results);
* to do nothing.
* @param password The oper's password
* @param input The password entered
- * @return 1 to match the passwords, 0 to do nothing
+ * @param tagnumber The tag number (from the configuration file) of this oper's tag
+ * @return 1 to match the passwords, 0 to do nothing. -1 to not match, and not continue.
*/
- virtual int OnOperCompare(const std::string &password, const std::string &input);
+ virtual int OnOperCompare(const std::string &password, const std::string &input, int tagnumber);
/** Called whenever a user is given usermode +o, anywhere on the network.
* You cannot override this and prevent it from happening as it is already happened and
*/
virtual void OnGlobalOper(userrec* user);
- /** Called whenever a user connects, anywhere on the network.
+ /** Called after a user has fully connected and all modules have executed OnUserConnect
* This event is informational only. You should not change any user information in this
* event. To do so, use the OnUserConnect method to change the state of local users.
+ * This is called for both local and remote users.
* @param user The user who is connecting
*/
- virtual void OnGlobalConnect(userrec* user);
+ virtual void OnPostConnect(userrec* user);
/** Called whenever a ban is added to a channel's list.
* Return a non-zero value to 'eat' the mode change and prevent the ban from being added.
*/
virtual void OnRawSocketClose(int fd);
+ virtual void OnRawSocketConnect(int fd);
+
/** Called immediately before any read() operation on a client socket in the core.
* This occurs AFTER the select() or poll() so there is always data waiting to be read
* when this event occurs.
/** Called when a user cancels their away state.
*/
virtual void OnCancelAway(userrec* user);
+
+ /** Called whenever a NAMES list is requested.
+ * You can produce the nameslist yourself, overriding the current list,
+ * and if you do you must return 1. If you do not handle the names list,
+ * return 0.
+ */
+ virtual int OnUserList(userrec* user, chanrec* Ptr);
+
+ /** Called whenever a line of WHOIS output is sent to a user.
+ * You may change the numeric and the text of the output by changing
+ * the values numeric and text, but you cannot change the user the
+ * numeric is sent to. You may however change the user's userrec values.
+ * @param user The user the numeric is being sent to
+ * @param dest The user being WHOISed
+ * @param numeric The numeric of the line being sent
+ * @param text The text of the numeric, including any parameters
+ * @return nonzero to drop the line completely so that the user does not
+ * receive it, or zero to allow the line to be sent.
+ */
+ virtual int OnWhoisLine(userrec* user, userrec* dest, int &numeric, std::string &text);
+
+ /** Called at intervals for modules to garbage-collect any hashes etc.
+ * Certain data types such as hash_map 'leak' buckets, which must be
+ * tidied up and freed by copying into a new item every so often. This
+ * method is called when it is time to do that.
+ */
+ virtual void OnGarbageCollect();
};
* This method destroys the ConfigReader class.
*/
~ConfigReader();
+
/** Retrieves a value from the config file.
* This method retrieves a value from the config file. Where multiple copies of the tag
* exist in the config file, index indicates which of the values to retrieve.
*/
- std::string ReadValue(const std::string &tag, const std::string &name, int index);
+ std::string ReadValue(const std::string &tag, const std::string &name, int index, bool allow_linefeeds = false);
+ /** Retrieves a value from the config file.
+ * This method retrieves a value from the config file. Where multiple copies of the tag
+ * exist in the config file, index indicates which of the values to retrieve. If the
+ * tag is not found the default value is returned instead.
+ */
+ std::string ReadValue(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool allow_linefeeds = false);
+
/** Retrieves a boolean value from the config file.
* This method retrieves a boolean value from the config file. Where multiple copies of the tag
* exist in the config file, index indicates which of the values to retrieve. The values "1", "yes"
* and "true" in the config file count as true to ReadFlag, and any other value counts as false.
*/
bool ReadFlag(const std::string &tag, const std::string &name, int index);
+ /** Retrieves a boolean value from the config file.
+ * This method retrieves a boolean value from the config file. Where multiple copies of the tag
+ * exist in the config file, index indicates which of the values to retrieve. The values "1", "yes"
+ * and "true" in the config file count as true to ReadFlag, and any other value counts as false.
+ * If the tag is not found, the default value is used instead.
+ */
+ bool ReadFlag(const std::string &tag, const std::string &name, const std::string &default_value, int index);
+
/** Retrieves an integer value from the config file.
* This method retrieves an integer value from the config file. Where multiple copies of the tag
* exist in the config file, index indicates which of the values to retrieve. Any invalid integer
* will return CONF_NOT_UNSIGNED
*/
long ReadInteger(const std::string &tag, const std::string &name, int index, bool needs_unsigned);
+ /** Retrieves an integer value from the config file.
+ * This method retrieves an integer value from the config file. Where multiple copies of the tag
+ * exist in the config file, index indicates which of the values to retrieve. Any invalid integer
+ * values in the tag will cause the objects error value to be set, and any call to GetError() will
+ * return CONF_INVALID_NUMBER to be returned. needs_unsigned is set if the number must be unsigned.
+ * If a signed number is placed into a tag which is specified unsigned, 0 will be returned and GetError()
+ * will return CONF_NOT_UNSIGNED. If the tag is not found, the default value is used instead.
+ */
+ long ReadInteger(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool needs_unsigned);
+
/** Returns the last error to occur.
* Valid errors can be found by looking in modules.h. Any nonzero value indicates an error condition.
* A call to GetError() resets the error flag back to 0.
};
-/** Instantiates classes inherited from Module
+/** Instantiates classes inherited from Module.
* This class creates a class inherited from type Module, using new. This is to allow for modules
* to create many different variants of Module, dependent on architecture, configuration, etc.
* In most cases, the simple class shown in the example module m_foobar.so will suffice for most
class ModuleFactory : public classbase
{
public:
+ /** The default constructor does nothing.
+ */
ModuleFactory() { }
+ /** The default destructor does nothing
+ */
virtual ~ModuleFactory() { }
/** Creates a new module.
* Your inherited class of ModuleFactory must return a pointer to your Module class
virtual Module * CreateModule(InspIRCd* Me) = 0;
};
-
+/** A DLLFactory (designed to load shared objects) containing a ModuleFactory.
+ */
typedef DLLFactory<ModuleFactory> ircd_module;
+
+/** A list of loaded Modules
+ */
typedef std::vector<Module*> ModuleList;
+
+/** A list of loaded ModuleFactories
+ */
typedef std::vector<ircd_module*> FactoryList;
#endif