1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2008 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[18];
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, std::istream* scan_for_includes_only);
237 /** Process an include directive
239 bool DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream, int pass, std::istream* scan_for_includes_only);
241 /** Check that there is only one of each configuration item
243 bool CheckOnce(char* tag);
247 std::ostringstream errstr;
249 ConfigDataHash newconfig;
251 std::map<std::string, std::istream*> IncludedFiles;
253 std::map<std::string, bool> CompletedFiles;
255 size_t TotalDownloaded;
258 /** Used to indicate who we announce invites to on a channel */
259 enum InviteAnnounceState { INVITE_ANNOUNCE_NONE, INVITE_ANNOUNCE_ALL, INVITE_ANNOUNCE_OPS, INVITE_ANNOUNCE_DYNAMIC };
261 /** Pointer to function that validates dns server addresses (can be changed depending on platform) */
262 Validator DNSServerValidator;
264 InspIRCd* GetInstance();
268 /** This holds all the information in the config file,
269 * it's indexed by tag name to a vector of key/values.
271 ConfigDataHash config_data;
273 /** Max number of WhoWas entries per user.
277 /** Max number of cumulative user-entries in WhoWas.
278 * When max reached and added to, push out oldest entry FIFO style.
282 /** Max seconds a user is kept in WhoWas before being pruned.
286 /** Holds the server name of the local server
287 * as defined by the administrator.
289 char ServerName[MAXBUF];
291 /** Notice to give to users when they are Xlined
293 char MoronBanner[MAXBUF];
295 /* Holds the network name the local server
296 * belongs to. This is an arbitary field defined
297 * by the administrator.
299 char Network[MAXBUF];
301 /** Holds the description of the local server
302 * as defined by the administrator.
304 char ServerDesc[MAXBUF];
306 /** Holds the admin's name, for output in
307 * the /ADMIN command.
309 char AdminName[MAXBUF];
311 /** Holds the email address of the admin,
312 * for output in the /ADMIN command.
314 char AdminEmail[MAXBUF];
316 /** Holds the admin's nickname, for output
317 * in the /ADMIN command
319 char AdminNick[MAXBUF];
321 /** The admin-configured /DIE password
323 char diepass[MAXBUF];
325 /** The admin-configured /RESTART password
327 char restartpass[MAXBUF];
329 /** The hash method for *BOTH* the die and restart passwords.
331 char powerhash[MAXBUF];
333 /** The pathname and filename of the message of the
334 * day file, as defined by the administrator.
338 /** The pathname and filename of the rules file,
339 * as defined by the administrator.
343 /** The quit prefix in use, or an empty string
345 char PrefixQuit[MAXBUF];
347 /** The quit suffix in use, or an empty string
349 char SuffixQuit[MAXBUF];
351 /** The fixed quit message in use, or an empty string
353 char FixedQuit[MAXBUF];
355 /** The part prefix in use, or an empty string
357 char PrefixPart[MAXBUF];
359 /** The part suffix in use, or an empty string
361 char SuffixPart[MAXBUF];
363 /** The fixed part message in use, or an empty string
365 char FixedPart[MAXBUF];
367 /** The last string found within a <die> tag, or
370 char DieValue[MAXBUF];
372 /** The DNS server to use for DNS queries
374 char DNSServer[MAXBUF];
376 /** This variable contains a space-seperated list
377 * of commands which are disabled by the
378 * administrator of the server for non-opers.
380 char DisabledCommands[MAXBUF];
382 /** The full path to the modules directory.
383 * This is either set at compile time, or
384 * overridden in the configuration file via
389 /** The full pathname to the executable, as
390 * given in argv[0] when the program starts.
392 char MyExecutable[1024];
394 /** The file handle of the logfile. If this
395 * value is NULL, the log file is not open,
396 * probably due to a permissions error on
397 * startup (this should not happen in normal
402 /** If this value is true, the owner of the
403 * server specified -nofork on the command
404 * line, causing the daemon to stay in the
409 /** If this value if true then all log
410 * messages will be output, regardless of
411 * the level given in the config file.
412 * This is set with the -debug commandline
417 /** If this is true then log output will be
418 * written to the logfile. This is the default.
419 * If you put -nolog on the commandline then
420 * the logfile will not be written.
421 * This is meant to be used in conjunction with
422 * -debug for debugging without filling up the
427 /** If this value is true, halfops have been
428 * enabled in the configuration file.
432 /** If this is set to true, then mode lists (e.g
433 * MODE #chan b) are hidden from unprivileged
436 bool HideModeLists[256];
438 /** If this is set to true, then channel operators
439 * are exempt from this channel mode. Used for +Sc etc.
441 bool ExemptChanOps[256];
443 /** The number of seconds the DNS subsystem
444 * will wait before timing out any request.
448 /** The size of the read() buffer in the user
449 * handling code, used to read data into a user's
454 /** The value to be used for listen() backlogs
459 /** The soft limit value assigned to the irc server.
460 * The IRC server will not allow more than this
461 * number of local users.
463 unsigned int SoftLimit;
465 /** Maximum number of targets for a multi target command
466 * such as PRIVMSG or KICK
468 unsigned int MaxTargets;
470 /** The maximum number of /WHO results allowed
471 * in any single /WHO command.
475 /** True if the DEBUG loglevel is selected.
479 /** The loglevel in use by the IRC server
483 /** How many seconds to wait before exiting
484 * the program when /DIE is correctly issued.
488 /** True if we're going to hide netsplits as *.net *.split for non-opers
492 /** True if we're going to hide ban reasons for non-opers (e.g. G-Lines,
497 /** Announce invites to the channel with a server notice
499 InviteAnnounceState AnnounceInvites;
501 /** If this is enabled then operators will
502 * see invisible (+i) channels in /whois.
506 /** Set to a non-empty string to obfuscate the server name of users in WHOIS
508 char HideWhoisServer[MAXBUF];
510 /** Set to a non empty string to obfuscate nicknames prepended to a KILL.
512 char HideKillsServer[MAXBUF];
514 /** The MOTD file, cached in a file_cache type.
518 /** The RULES file, cached in a file_cache type.
522 /** The full pathname and filename of the PID
523 * file as defined in the configuration.
527 /** The connect classes in use by the IRC server.
531 /** A list of the classes for listening client ports
533 std::vector<ListenSocket*> ports;
535 /** A list of ports claimed by IO Modules
537 std::map<int,Module*> IOHookModule;
539 std::map<BufferedSocket*, Module*> SocketIOHookModule;
541 /** The 005 tokens of this server (ISUPPORT)
542 * populated/repopulated upon loading or unloading
549 std::vector<std::string> isupport;
551 /** STATS characters in this list are available
554 char UserStats[MAXBUF];
556 /** The path and filename of the ircd.log file
560 /** Default channel modes
562 char DefaultModes[MAXBUF];
564 /** Custom version string, which if defined can replace the system info in VERSION.
566 char CustomVersion[MAXBUF];
568 /** List of u-lined servers
570 std::map<irc::string, bool> ulines;
572 /** Max banlist sizes for channels (the std::string is a glob)
574 std::map<std::string, int> maxbans;
576 /** Directory where the inspircd binary resides
580 /** If set to true, no user DNS lookups are to be performed
584 /** If set to true, provide syntax hints for unknown commands
588 /** If set to true, users appear to quit then rejoin when their hosts change.
589 * This keeps clients synchronized properly.
593 /** If set to true, prefixed channel NOTICEs and PRIVMSGs will have the prefix
594 * added to the outgoing text for undernet style msg prefixing.
596 bool UndernetMsgPrefix;
598 /** If set to true, the full nick!user@host will be shown in the TOPIC command
599 * for who set the topic last. If false, only the nick is shown.
601 bool FullHostInTopic;
603 /** All oper type definitions from the config file
605 opertype_t opertypes;
607 /** All oper class definitions from the config file
609 operclass_t operclass;
611 /** Saved argv from startup
615 /** Saved argc from startup
619 /** Max channels per user
621 unsigned int MaxChans;
623 /** Oper max channels per user
625 unsigned int OperMaxChans;
627 /** TS6-like server ID.
628 * NOTE: 000...999 are usable for InspIRCd servers. This
629 * makes code simpler. 0AA, 1BB etc with letters are reserved
634 /** Construct a new ServerConfig
636 ServerConfig(InspIRCd* Instance);
638 /** Clears the include stack in preperation for a Read() call.
642 /** Get server ID as string with required leading zeroes
644 std::string GetSID();
646 /** Update the 005 vector
650 /** Send the 005 numerics (ISUPPORT) to a user
652 void Send005(User* user);
654 /** Read the entire configuration into memory
655 * and initialize this class. All other methods
656 * should be used only by the core.
658 void Read(bool bail, User* user, int pass);
660 /** Read a file into a file_cache object
662 bool ReadFile(file_cache &F, const char* fname);
664 /** Report a configuration error given in errormessage.
665 * @param bail If this is set to true, the error is sent to the console, and the program exits
666 * @param user If this is set to a non-null value, and bail is false, the errors are spooled to
667 * this user as SNOTICEs.
668 * If the parameter is NULL, the messages are spooled to all opers.
670 void ReportConfigError(const std::string &errormessage, bool bail, User* user);
672 /** Load 'filename' into 'target', with the new config parser everything is parsed into
673 * tag/key/value at load-time rather than at read-value time.
675 bool LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream, int pass, std::istream* scan_for_includs_only);
677 /** Load 'filename' into 'target', with the new config parser everything is parsed into
678 * tag/key/value at load-time rather than at read-value time.
680 bool LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream, int pass, std::istream* scan_for_includs_only = NULL);
682 /* Both these return true if the value existed or false otherwise */
684 /** Writes 'length' chars into 'result' as a string
686 bool ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds = false);
687 /** Writes 'length' chars into 'result' as a string
689 bool ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds = false);
691 /** Writes 'length' chars into 'result' as a string
693 bool ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds = false);
694 /** Writes 'length' chars into 'result' as a string
696 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);
698 /** Tries to convert the value to an integer and write it to 'result'
700 bool ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result);
701 /** Tries to convert the value to an integer and write it to 'result'
703 bool ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result);
704 /** Tries to convert the value to an integer and write it to 'result'
706 bool ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result);
707 /** Tries to convert the value to an integer and write it to 'result'
709 bool ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result);
711 /** Returns true if the value exists and has a true value, false otherwise
713 bool ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index);
714 /** Returns true if the value exists and has a true value, false otherwise
716 bool ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index);
717 /** Returns true if the value exists and has a true value, false otherwise
719 bool ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index);
720 /** Returns true if the value exists and has a true value, false otherwise
722 bool ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index);
724 /** Returns the number of occurences of tag in the config file
726 int ConfValueEnum(ConfigDataHash &target, const char* tag);
727 /** Returns the number of occurences of tag in the config file
729 int ConfValueEnum(ConfigDataHash &target, const std::string &tag);
731 /** Returns the numbers of vars inside the index'th 'tag in the config file
733 int ConfVarEnum(ConfigDataHash &target, const char* tag, int index);
734 /** Returns the numbers of vars inside the index'th 'tag in the config file
736 int ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index);
738 void ValidateHostname(const char* p, const std::string &tag, const std::string &val);
740 void ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild);
742 void ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val);
744 /** Get a pointer to the module which has hooked the given port.
745 * @parameter port Port number
746 * @return Returns a pointer to the hooking module, or NULL
748 Module* GetIOHook(int port);
750 /** Hook a module to a client port, so that it can receive notifications
751 * of low-level port activity.
752 * @param port The port number
753 * @param Module the module to hook to the port
754 * @return True if the hook was successful.
756 bool AddIOHook(int port, Module* iomod);
758 /** Delete a module hook from a client port.
759 * @param port The port to detatch from
760 * @return True if successful
762 bool DelIOHook(int port);
764 /** Get a pointer to the module which has hooked the given BufferedSocket class.
765 * @parameter port Port number
766 * @return Returns a pointer to the hooking module, or NULL
768 Module* GetIOHook(BufferedSocket* is);
770 /** Hook a module to an BufferedSocket class, so that it can receive notifications
771 * of low-level socket activity.
772 * @param iomod The module to hook to the socket
773 * @param is The BufferedSocket to attach to
774 * @return True if the hook was successful.
776 bool AddIOHook(Module* iomod, BufferedSocket* is);
778 /** Delete a module hook from an BufferedSocket.
779 * @param is The BufferedSocket to detatch from.
780 * @return True if the unhook was successful
782 bool DelIOHook(BufferedSocket* is);
784 /** Returns the fully qualified path to the inspircd directory
785 * @return The full program directory
787 std::string GetFullProgDir();
789 /** Returns true if a directory is valid (within the modules directory).
790 * @param dirandfile The directory and filename to check
791 * @return True if the directory is valid
793 static bool DirValid(const char* dirandfile);
795 /** Clean a filename, stripping the directories (and drives) from string.
796 * @param name Directory to tidy
797 * @return The cleaned filename
799 static char* CleanFilename(char* name);
801 /** Check if a file exists.
802 * @param file The full path to a file
803 * @return True if the file exists and is readable.
805 static bool FileExists(const char* file);
809 /** Initialize the disabled commands list
811 CoreExport bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance);
813 /** Initialize the oper types
815 bool InitTypes(ServerConfig* conf, const char* tag);
817 /** Initialize the oper classes
819 bool InitClasses(ServerConfig* conf, const char* tag);
821 /** Initialize an oper type
823 bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
825 /** Initialize an oper class
827 bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
829 /** Finish initializing the oper types and classes
831 bool DoneClassesAndTypes(ServerConfig* conf, const char* tag);
835 /** Initialize x line
837 bool InitXLine(ServerConfig* conf, const char* tag);
839 /** Add a config-defined zline
841 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
843 /** Add a config-defined qline
845 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
847 /** Add a config-defined kline
849 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
851 /** Add a config-defined eline
853 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);