1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
14 #ifndef INSPIRCD_CONFIGREADER
15 #define INSPIRCD_CONFIGREADER
19 /** Determines if a channel op is exempt from given mode m,
20 * in config of server instance s.
22 #define CHANOPS_EXEMPT(s, m) (s->Config->ExemptChanOps[(unsigned char)m])
31 #include "socketengine.h"
34 /* Required forward definitions */
39 /** Types of data in the core config
43 DT_NOTHING = 0, /* No data */
44 DT_INTEGER = 1, /* Integer */
45 DT_CHARPTR = 2, /* Char pointer */
46 DT_BOOLEAN = 3, /* Boolean */
47 DT_HOSTNAME = 4, /* Hostname syntax */
48 DT_NOSPACES = 5, /* No spaces */
49 DT_IPADDRESS = 6, /* IP address (v4, v6) */
50 DT_CHANNEL = 7, /* Channel name */
51 DT_ALLOW_WILD = 64, /* Allow wildcards/CIDR in DT_IPADDRESS */
52 DT_ALLOW_NEWLINE = 128 /* New line characters allowed in DT_CHARPTR */
55 /** Holds a config value, either string, integer or boolean.
56 * Callback functions receive one or more of these, either on
57 * their own as a reference, or in a reference to a deque of them.
58 * The callback function can then alter the values of the ValueItem
59 * classes to validate the settings.
66 /** Initialize with an int */
68 /** Initialize with a bool */
69 ValueItem(bool value);
70 /** Initialize with a char pointer */
71 ValueItem(char* value);
72 /** Change value to a char pointer */
73 void Set(char* value);
74 /** Change value to a const char pointer */
75 void Set(const char* val);
76 /** Change value to an int */
78 /** Get value as an int */
80 /** Get value as a string */
82 /** Get value as a bool */
86 /** The base class of the container 'ValueContainer'
87 * used internally by the core to hold core values.
89 class ValueContainerBase
93 ValueContainerBase() { }
95 virtual ~ValueContainerBase() { }
98 /** ValueContainer is used to contain pointers to different
99 * core values such as the server name, maximum number of
101 * It is specialized to hold a data type, then pointed at
102 * a value in the ServerConfig class. When the value has been
103 * read and validated, the Set method is called to write the
104 * value safely in a type-safe manner.
106 template<typename T> class ValueContainer : public ValueContainerBase
108 /** Contained item */
112 /** Initialize with nothing */
118 /** Initialize with a value of type T */
119 ValueContainer(T Val)
124 /** Change value to type T of size s */
125 void Set(T newval, size_t s)
127 memcpy(val, newval, s);
131 /** A specialization of ValueContainer to hold a pointer to a bool
133 typedef ValueContainer<bool*> ValueContainerBool;
135 /** A specialization of ValueContainer to hold a pointer to
138 typedef ValueContainer<unsigned int*> ValueContainerUInt;
140 /** A specialization of ValueContainer to hold a pointer to
143 typedef ValueContainer<char*> ValueContainerChar;
145 /** A specialization of ValueContainer to hold a pointer to
148 typedef ValueContainer<int*> ValueContainerInt;
150 /** A set of ValueItems used by multi-value validator functions
152 typedef std::deque<ValueItem> ValueList;
154 /** A callback for validating a single value
156 typedef bool (*Validator)(ServerConfig* conf, const char*, const char*, ValueItem&);
157 /** A callback for validating multiple value entries
159 typedef bool (*MultiValidator)(ServerConfig* conf, const char*, char**, ValueList&, int*);
160 /** A callback indicating the end of a group of entries
162 typedef bool (*MultiNotify)(ServerConfig* conf, const char*);
164 /** Holds a core configuration item and its callbacks
172 /** Default, if not defined */
174 /** Value containers */
175 ValueContainerBase* val;
177 ConfigDataType datatype;
178 /** Validation function */
179 Validator validation_function;
182 /** Holds a core configuration item and its callbacks
183 * where there may be more than one item
189 /** One or more items within tag */
191 /** One or more defaults for items within tags */
192 char* items_default[17];
193 /** One or more data types */
195 /** Initialization function */
196 MultiNotify init_function;
197 /** Validation function */
198 MultiValidator validation_function;
199 /** Completion function */
200 MultiNotify finish_function;
203 /** A set of oper types
205 typedef std::map<irc::string,char*> opertype_t;
207 /** A Set of oper classes
209 typedef std::map<irc::string,char*> operclass_t;
212 /** This class holds the bulk of the runtime configuration for the ircd.
213 * It allows for reading new config values, accessing configuration files,
214 * and storage of the configuration data needed to run the ircd, such as
215 * the servername, connect classes, /ADMIN data, MOTDs and filenames etc.
217 class CoreExport ServerConfig : public Extensible
220 /** Creator/owner pointer
222 InspIRCd* ServerInstance;
224 /** This variable holds the names of all
225 * files included from the main one. This
226 * is used to make sure that no files are
227 * recursively included.
229 std::vector<std::string> include_stack;
231 /** This private method processes one line of
232 * configutation, appending errors to errorstream
233 * and setting error if an error has occured.
235 bool ParseLine(ConfigDataHash &target, std::string &line, long &linenumber, std::ostringstream &errorstream, int pass);
237 /** Process an include directive
239 bool DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream, int pass);
241 /** Check that there is only one of each configuration item
243 bool CheckOnce(char* tag);
245 std::map<std::string, std::istream*> IncludedFiles;
249 size_t TotalDownloaded;
251 /** Used to indicate who we announce invites to on a channel */
252 enum InviteAnnounceState { INVITE_ANNOUNCE_NONE, INVITE_ANNOUNCE_ALL, INVITE_ANNOUNCE_OPS, INVITE_ANNOUNCE_DYNAMIC };
254 /** Pointer to function that validates dns server addresses (can be changed depending on platform) */
255 Validator DNSServerValidator;
257 InspIRCd* GetInstance();
261 void StartDownloads();
263 /** This holds all the information in the config file,
264 * it's indexed by tag name to a vector of key/values.
266 ConfigDataHash config_data;
268 /** Max number of WhoWas entries per user.
272 /** Max number of cumulative user-entries in WhoWas.
273 * When max reached and added to, push out oldest entry FIFO style.
277 /** Max seconds a user is kept in WhoWas before being pruned.
281 /** Holds the server name of the local server
282 * as defined by the administrator.
284 char ServerName[MAXBUF];
286 /** Notice to give to users when they are Xlined
288 char MoronBanner[MAXBUF];
290 /* Holds the network name the local server
291 * belongs to. This is an arbitary field defined
292 * by the administrator.
294 char Network[MAXBUF];
296 /** Holds the description of the local server
297 * as defined by the administrator.
299 char ServerDesc[MAXBUF];
301 /** Holds the admin's name, for output in
302 * the /ADMIN command.
304 char AdminName[MAXBUF];
306 /** Holds the email address of the admin,
307 * for output in the /ADMIN command.
309 char AdminEmail[MAXBUF];
311 /** Holds the admin's nickname, for output
312 * in the /ADMIN command
314 char AdminNick[MAXBUF];
316 /** The admin-configured /DIE password
318 char diepass[MAXBUF];
320 /** The admin-configured /RESTART password
322 char restartpass[MAXBUF];
324 /** The pathname and filename of the message of the
325 * day file, as defined by the administrator.
329 /** The pathname and filename of the rules file,
330 * as defined by the administrator.
334 /** The quit prefix in use, or an empty string
336 char PrefixQuit[MAXBUF];
338 /** The quit suffix in use, or an empty string
340 char SuffixQuit[MAXBUF];
342 /** The fixed quit message in use, or an empty string
344 char FixedQuit[MAXBUF];
346 /** The last string found within a <die> tag, or
349 char DieValue[MAXBUF];
351 /** The DNS server to use for DNS queries
353 char DNSServer[MAXBUF];
355 /** This variable contains a space-seperated list
356 * of commands which are disabled by the
357 * administrator of the server for non-opers.
359 char DisabledCommands[MAXBUF];
361 /** The full path to the modules directory.
362 * This is either set at compile time, or
363 * overridden in the configuration file via
368 /** The full pathname to the executable, as
369 * given in argv[0] when the program starts.
371 char MyExecutable[1024];
373 /** The file handle of the logfile. If this
374 * value is NULL, the log file is not open,
375 * probably due to a permissions error on
376 * startup (this should not happen in normal
381 /** If this value is true, the owner of the
382 * server specified -nofork on the command
383 * line, causing the daemon to stay in the
388 /** If this value if true then all log
389 * messages will be output, regardless of
390 * the level given in the config file.
391 * This is set with the -debug commandline
396 /** If this is true then log output will be
397 * written to the logfile. This is the default.
398 * If you put -nolog on the commandline then
399 * the logfile will not be written.
400 * This is meant to be used in conjunction with
401 * -debug for debugging without filling up the
406 /** If this value is true, halfops have been
407 * enabled in the configuration file.
411 /** If this is set to true, then mode lists (e.g
412 * MODE #chan b) are hidden from unprivileged
415 bool HideModeLists[256];
417 /** If this is set to true, then channel operators
418 * are exempt from this channel mode. Used for +Sc etc.
420 bool ExemptChanOps[256];
422 /** The number of seconds the DNS subsystem
423 * will wait before timing out any request.
427 /** The size of the read() buffer in the user
428 * handling code, used to read data into a user's
433 /** The value to be used for listen() backlogs
438 /** The soft limit value assigned to the irc server.
439 * The IRC server will not allow more than this
440 * number of local users.
442 unsigned int SoftLimit;
444 /** Maximum number of targets for a multi target command
445 * such as PRIVMSG or KICK
447 unsigned int MaxTargets;
449 /** The maximum number of /WHO results allowed
450 * in any single /WHO command.
454 /** True if the DEBUG loglevel is selected.
458 /** The loglevel in use by the IRC server
462 /** How many seconds to wait before exiting
463 * the program when /DIE is correctly issued.
467 /** True if we're going to hide netsplits as *.net *.split for non-opers
471 /** True if we're going to hide ban reasons for non-opers (e.g. G-Lines,
476 /** Announce invites to the channel with a server notice
478 InviteAnnounceState AnnounceInvites;
480 /** If this is enabled then operators will
481 * see invisible (+i) channels in /whois.
485 /** Set to a non-empty string to obfuscate the server name of users in WHOIS
487 char HideWhoisServer[MAXBUF];
489 /** Set to a non empty string to obfuscate nicknames prepended to a KILL.
491 char HideKillsServer[MAXBUF];
493 /** The MOTD file, cached in a file_cache type.
497 /** The RULES file, cached in a file_cache type.
501 /** The full pathname and filename of the PID
502 * file as defined in the configuration.
506 /** The connect classes in use by the IRC server.
510 /** A list of the classes for listening client ports
512 std::vector<ListenSocket*> ports;
514 /** A list of ports claimed by IO Modules
516 std::map<int,Module*> IOHookModule;
518 std::map<BufferedSocket*, Module*> SocketIOHookModule;
520 /** The 005 tokens of this server (ISUPPORT)
521 * populated/repopulated upon loading or unloading
528 std::vector<std::string> isupport;
530 /** STATS characters in this list are available
533 char UserStats[MAXBUF];
535 /** The path and filename of the ircd.log file
539 /** Default channel modes
541 char DefaultModes[MAXBUF];
543 /** Custom version string, which if defined can replace the system info in VERSION.
545 char CustomVersion[MAXBUF];
547 /** List of u-lined servers
549 std::map<irc::string, bool> ulines;
551 /** Max banlist sizes for channels (the std::string is a glob)
553 std::map<std::string, int> maxbans;
555 /** Directory where the inspircd binary resides
559 /** If set to true, no user DNS lookups are to be performed
563 /** If set to true, provide syntax hints for unknown commands
567 /** If set to true, users appear to quit then rejoin when their hosts change.
568 * This keeps clients synchronized properly.
572 /** If set to true, prefixed channel NOTICEs and PRIVMSGs will have the prefix
573 * added to the outgoing text for undernet style msg prefixing.
575 bool UndernetMsgPrefix;
577 /** If set to true, the full nick!user@host will be shown in the TOPIC command
578 * for who set the topic last. If false, only the nick is shown.
580 bool FullHostInTopic;
582 /** All oper type definitions from the config file
584 opertype_t opertypes;
586 /** All oper class definitions from the config file
588 operclass_t operclass;
590 /** Saved argv from startup
594 /** Saved argc from startup
598 /** Max channels per user
600 unsigned int MaxChans;
602 /** Oper max channels per user
604 unsigned int OperMaxChans;
606 /** TS6-like server ID.
607 * NOTE: 000...999 are usable for InspIRCd servers. This
608 * makes code simpler. 0AA, 1BB etc with letters are reserved
613 /** Construct a new ServerConfig
615 ServerConfig(InspIRCd* Instance);
617 /** Clears the include stack in preperation for a Read() call.
621 /** Get server ID as string with required leading zeroes
623 std::string GetSID();
625 /** Update the 005 vector
629 /** Send the 005 numerics (ISUPPORT) to a user
631 void Send005(User* user);
633 /** Read the entire configuration into memory
634 * and initialize this class. All other methods
635 * should be used only by the core.
637 void Read(bool bail, User* user, int pass);
639 /** Read a file into a file_cache object
641 bool ReadFile(file_cache &F, const char* fname);
643 /** Report a configuration error given in errormessage.
644 * @param bail If this is set to true, the error is sent to the console, and the program exits
645 * @param user If this is set to a non-null value, and bail is false, the errors are spooled to
646 * this user as SNOTICEs.
647 * If the parameter is NULL, the messages are spooled to all users via WriteOpers as SNOTICEs.
649 void ReportConfigError(const std::string &errormessage, bool bail, User* user);
651 /** Load 'filename' into 'target', with the new config parser everything is parsed into
652 * tag/key/value at load-time rather than at read-value time.
654 bool LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream, int pass);
656 /** Load 'filename' into 'target', with the new config parser everything is parsed into
657 * tag/key/value at load-time rather than at read-value time.
659 bool LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream, int pass);
661 /* Both these return true if the value existed or false otherwise */
663 /** Writes 'length' chars into 'result' as a string
665 bool ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds = false);
666 /** Writes 'length' chars into 'result' as a string
668 bool ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds = false);
670 /** Writes 'length' chars into 'result' as a string
672 bool ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds = false);
673 /** Writes 'length' chars into 'result' as a string
675 bool ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds = false);
677 /** Tries to convert the value to an integer and write it to 'result'
679 bool ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result);
680 /** Tries to convert the value to an integer and write it to 'result'
682 bool ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result);
683 /** Tries to convert the value to an integer and write it to 'result'
685 bool ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result);
686 /** Tries to convert the value to an integer and write it to 'result'
688 bool ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result);
690 /** Returns true if the value exists and has a true value, false otherwise
692 bool ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index);
693 /** Returns true if the value exists and has a true value, false otherwise
695 bool ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index);
696 /** Returns true if the value exists and has a true value, false otherwise
698 bool ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index);
699 /** Returns true if the value exists and has a true value, false otherwise
701 bool ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index);
703 /** Returns the number of occurences of tag in the config file
705 int ConfValueEnum(ConfigDataHash &target, const char* tag);
706 /** Returns the number of occurences of tag in the config file
708 int ConfValueEnum(ConfigDataHash &target, const std::string &tag);
710 /** Returns the numbers of vars inside the index'th 'tag in the config file
712 int ConfVarEnum(ConfigDataHash &target, const char* tag, int index);
713 /** Returns the numbers of vars inside the index'th 'tag in the config file
715 int ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index);
717 void ValidateHostname(const char* p, const std::string &tag, const std::string &val);
719 void ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild);
721 void ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val);
723 /** Get a pointer to the module which has hooked the given port.
724 * @parameter port Port number
725 * @return Returns a pointer to the hooking module, or NULL
727 Module* GetIOHook(int port);
729 /** Hook a module to a client port, so that it can receive notifications
730 * of low-level port activity.
731 * @param port The port number
732 * @param Module the module to hook to the port
733 * @return True if the hook was successful.
735 bool AddIOHook(int port, Module* iomod);
737 /** Delete a module hook from a client port.
738 * @param port The port to detatch from
739 * @return True if successful
741 bool DelIOHook(int port);
743 /** Get a pointer to the module which has hooked the given BufferedSocket class.
744 * @parameter port Port number
745 * @return Returns a pointer to the hooking module, or NULL
747 Module* GetIOHook(BufferedSocket* is);
749 /** Hook a module to an BufferedSocket class, so that it can receive notifications
750 * of low-level socket activity.
751 * @param iomod The module to hook to the socket
752 * @param is The BufferedSocket to attach to
753 * @return True if the hook was successful.
755 bool AddIOHook(Module* iomod, BufferedSocket* is);
757 /** Delete a module hook from an BufferedSocket.
758 * @param is The BufferedSocket to detatch from.
759 * @return True if the unhook was successful
761 bool DelIOHook(BufferedSocket* is);
763 /** Returns the fully qualified path to the inspircd directory
764 * @return The full program directory
766 std::string GetFullProgDir();
768 /** Returns true if a directory is valid (within the modules directory).
769 * @param dirandfile The directory and filename to check
770 * @return True if the directory is valid
772 static bool DirValid(const char* dirandfile);
774 /** Clean a filename, stripping the directories (and drives) from string.
775 * @param name Directory to tidy
776 * @return The cleaned filename
778 static char* CleanFilename(char* name);
780 /** Check if a file exists.
781 * @param file The full path to a file
782 * @return True if the file exists and is readable.
784 static bool FileExists(const char* file);
788 /** Initialize the disabled commands list
790 CoreExport bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance);
792 /** Initialize the oper types
794 bool InitTypes(ServerConfig* conf, const char* tag);
796 /** Initialize the oper classes
798 bool InitClasses(ServerConfig* conf, const char* tag);
800 /** Initialize an oper type
802 bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
804 /** Initialize an oper class
806 bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
808 /** Finish initializing the oper types and classes
810 bool DoneClassesAndTypes(ServerConfig* conf, const char* tag);
814 /** Initialize x line
816 bool InitXLine(ServerConfig* conf, const char* tag);
818 /** Add a config-defined zline
820 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
822 /** Add a config-defined qline
824 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
826 /** Add a config-defined kline
828 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
830 /** Add a config-defined eline
832 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);