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 */
53 DT_BOOTONLY = 256 /* Can only be set on startup, not on rehash */
56 /** The maximum number of values in a core configuration tag. Can be increased if needed.
58 #define MAX_VALUES_PER_TAG 18
60 /** Holds a config value, either string, integer or boolean.
61 * Callback functions receive one or more of these, either on
62 * their own as a reference, or in a reference to a deque of them.
63 * The callback function can then alter the values of the ValueItem
64 * classes to validate the settings.
71 /** Initialize with an int */
73 /** Initialize with a bool */
74 ValueItem(bool value);
75 /** Initialize with a char pointer */
76 ValueItem(const char* value);
77 /** Change value to a char pointer */
78 void Set(const char* val);
79 /** Change value to an int */
81 /** Get value as an int */
83 /** Get value as a string */
85 /** Get value as a bool */
89 /** The base class of the container 'ValueContainer'
90 * used internally by the core to hold core values.
92 class ValueContainerBase
96 ValueContainerBase() { }
98 virtual ~ValueContainerBase() { }
101 /** ValueContainer is used to contain pointers to different
102 * core values such as the server name, maximum number of
104 * It is specialized to hold a data type, then pointed at
105 * a value in the ServerConfig class. When the value has been
106 * read and validated, the Set method is called to write the
107 * value safely in a type-safe manner.
109 template<typename T> class ValueContainer : public ValueContainerBase
111 /** Contained item */
115 /** Initialize with nothing */
121 /** Initialize with a value of type T */
122 ValueContainer(T Val)
127 /** Change value to type T of size s */
128 void Set(T newval, size_t s)
130 memcpy(val, newval, s);
134 /** A specialization of ValueContainer to hold a pointer to a bool
136 typedef ValueContainer<bool*> ValueContainerBool;
138 /** A specialization of ValueContainer to hold a pointer to
141 typedef ValueContainer<unsigned int*> ValueContainerUInt;
143 /** A specialization of ValueContainer to hold a pointer to
146 typedef ValueContainer<char*> ValueContainerChar;
148 /** A specialization of ValueContainer to hold a pointer to
151 typedef ValueContainer<int*> ValueContainerInt;
153 typedef ValueContainer<size_t*> ValueContainerST;
155 /** A set of ValueItems used by multi-value validator functions
157 typedef std::deque<ValueItem> ValueList;
159 /** A callback for validating a single value
161 typedef bool (*Validator)(ServerConfig* conf, const char*, const char*, ValueItem&);
162 /** A callback for validating multiple value entries
164 typedef bool (*MultiValidator)(ServerConfig* conf, const char*, char**, ValueList&, int*);
165 /** A callback indicating the end of a group of entries
167 typedef bool (*MultiNotify)(ServerConfig* conf, const char*);
169 /** Holds a core configuration item and its callbacks
177 /** Default, if not defined */
178 const char* default_value;
179 /** Value containers */
180 ValueContainerBase* val;
183 /** Validation function */
184 Validator validation_function;
194 /** Holds a core configuration item and its callbacks
195 * where there may be more than one item
201 /** One or more items within tag */
202 const char* items[MAX_VALUES_PER_TAG];
203 /** One or more defaults for items within tags */
204 const char* items_default[MAX_VALUES_PER_TAG];
205 /** One or more data types */
206 int datatype[MAX_VALUES_PER_TAG];
207 /** Initialization function */
208 MultiNotify init_function;
209 /** Validation function */
210 MultiValidator validation_function;
211 /** Completion function */
212 MultiNotify finish_function;
215 /** A set of oper types
217 typedef std::map<irc::string,char*> opertype_t;
219 struct operclass_data : public Extensible
226 /** A Set of oper classes
228 typedef std::map<irc::string, operclass_data> operclass_t;
231 class ServerLimits : public Extensible
244 /* Creating the class initialises it to the defaults
245 * as in 1.1's ./configure script. Reading other values
246 * from the config will change these values.
248 ServerLimits() : NickMax(31), ChanMax(64), MaxModes(20), IdentMax(12), MaxQuit(255), MaxTopic(307), MaxKick(255), MaxGecos(128), MaxAway(200)
265 /** This class holds the bulk of the runtime configuration for the ircd.
266 * It allows for reading new config values, accessing configuration files,
267 * and storage of the configuration data needed to run the ircd, such as
268 * the servername, connect classes, /ADMIN data, MOTDs and filenames etc.
270 class CoreExport ServerConfig : public Extensible
273 /** Creator/owner pointer
275 InspIRCd* ServerInstance;
277 /** This variable holds the names of all
278 * files included from the main one. This
279 * is used to make sure that no files are
280 * recursively included.
282 std::vector<std::string> include_stack;
284 /** This private method processes one line of
285 * configutation, appending errors to errorstream
286 * and setting error if an error has occured.
288 bool ParseLine(ConfigDataHash &target, const std::string &filename, std::string &line, long &linenumber, std::ostringstream &errorstream);
290 /** Check that there is only one of each configuration item
292 bool CheckOnce(const char* tag, ConfigDataHash &newconf);
295 /** Process an include executable directive
297 bool DoPipe(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream);
299 /** Process an include file directive
301 bool DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream);
305 std::string RehashParameter;
307 std::ostringstream errstr;
309 ConfigDataHash newconfig;
311 std::map<std::string, std::istream*> IncludedFiles;
313 /** Used to indicate who we announce invites to on a channel */
314 enum InviteAnnounceState { INVITE_ANNOUNCE_NONE, INVITE_ANNOUNCE_ALL, INVITE_ANNOUNCE_OPS, INVITE_ANNOUNCE_DYNAMIC };
316 /** Pointer to function that validates dns server addresses (can be changed depending on platform) */
317 Validator DNSServerValidator;
319 InspIRCd* GetInstance();
323 /** This holds all the information in the config file,
324 * it's indexed by tag name to a vector of key/values.
326 ConfigDataHash config_data;
330 /** Clones CIDR range for ipv4 (0-32)
331 * Defaults to 32 (checks clones on all IPs seperately)
335 /** Clones CIDR range for ipv6 (0-128)
336 * Defaults to 128 (checks on all IPs seperately)
340 /** Max number of WhoWas entries per user.
344 /** Max number of cumulative user-entries in WhoWas.
345 * When max reached and added to, push out oldest entry FIFO style.
349 /** Max seconds a user is kept in WhoWas before being pruned.
353 /** Holds the server name of the local server
354 * as defined by the administrator.
356 char ServerName[MAXBUF];
358 /** Notice to give to users when they are Xlined
360 char MoronBanner[MAXBUF];
362 /* Holds the network name the local server
363 * belongs to. This is an arbitary field defined
364 * by the administrator.
366 char Network[MAXBUF];
368 /** Holds the description of the local server
369 * as defined by the administrator.
371 char ServerDesc[MAXBUF];
373 /** Holds the admin's name, for output in
374 * the /ADMIN command.
376 char AdminName[MAXBUF];
378 /** Holds the email address of the admin,
379 * for output in the /ADMIN command.
381 char AdminEmail[MAXBUF];
383 /** Holds the admin's nickname, for output
384 * in the /ADMIN command
386 char AdminNick[MAXBUF];
388 /** The admin-configured /DIE password
390 char diepass[MAXBUF];
392 /** The admin-configured /RESTART password
394 char restartpass[MAXBUF];
396 /** The hash method for *BOTH* the die and restart passwords.
398 char powerhash[MAXBUF];
400 /** The pathname and filename of the message of the
401 * day file, as defined by the administrator.
405 /** The pathname and filename of the rules file,
406 * as defined by the administrator.
410 /** The quit prefix in use, or an empty string
412 char PrefixQuit[MAXBUF];
414 /** The quit suffix in use, or an empty string
416 char SuffixQuit[MAXBUF];
418 /** The fixed quit message in use, or an empty string
420 char FixedQuit[MAXBUF];
422 /** The part prefix in use, or an empty string
424 char PrefixPart[MAXBUF];
426 /** The part suffix in use, or an empty string
428 char SuffixPart[MAXBUF];
430 /** The fixed part message in use, or an empty string
432 char FixedPart[MAXBUF];
434 /** The last string found within a <die> tag, or
437 char DieValue[MAXBUF];
439 /** The DNS server to use for DNS queries
441 char DNSServer[MAXBUF];
443 /** This variable contains a space-seperated list
444 * of commands which are disabled by the
445 * administrator of the server for non-opers.
447 char DisabledCommands[MAXBUF];
449 /** The full path to the modules directory.
450 * This is either set at compile time, or
451 * overridden in the configuration file via
456 /** The full pathname to the executable, as
457 * given in argv[0] when the program starts.
459 char MyExecutable[1024];
461 /** The file handle of the logfile. If this
462 * value is NULL, the log file is not open,
463 * probably due to a permissions error on
464 * startup (this should not happen in normal
469 /** If this value is true, the owner of the
470 * server specified -nofork on the command
471 * line, causing the daemon to stay in the
476 /** If this value if true then all log
477 * messages will be output, regardless of
478 * the level given in the config file.
479 * This is set with the -debug commandline
484 /** If this is true then log output will be
485 * written to the logfile. This is the default.
486 * If you put -nolog on the commandline then
487 * the logfile will not be written.
488 * This is meant to be used in conjunction with
489 * -debug for debugging without filling up the
494 /** If this value is true, halfops have been
495 * enabled in the configuration file.
499 /** If this is set to true, then mode lists (e.g
500 * MODE #chan b) are hidden from unprivileged
503 bool HideModeLists[256];
505 /** If this is set to true, then channel operators
506 * are exempt from this channel mode. Used for +Sc etc.
508 bool ExemptChanOps[256];
510 /** The number of seconds the DNS subsystem
511 * will wait before timing out any request.
515 /** The size of the read() buffer in the user
516 * handling code, used to read data into a user's
521 /** The value to be used for listen() backlogs
526 /** The soft limit value assigned to the irc server.
527 * The IRC server will not allow more than this
528 * number of local users.
530 unsigned int SoftLimit;
532 /** Maximum number of targets for a multi target command
533 * such as PRIVMSG or KICK
535 unsigned int MaxTargets;
537 /** The maximum number of /WHO results allowed
538 * in any single /WHO command.
542 /** True if the DEBUG loglevel is selected.
546 /** How many seconds to wait before exiting
547 * the program when /DIE is correctly issued.
551 /** True if we're going to hide netsplits as *.net *.split for non-opers
555 /** True if we're going to hide ban reasons for non-opers (e.g. G-Lines,
560 /** Announce invites to the channel with a server notice
562 InviteAnnounceState AnnounceInvites;
564 /** If this is enabled then operators will
565 * see invisible (+i) channels in /whois.
569 /** Set to a non-empty string to obfuscate the server name of users in WHOIS
571 char HideWhoisServer[MAXBUF];
573 /** Set to a non empty string to obfuscate nicknames prepended to a KILL.
575 char HideKillsServer[MAXBUF];
577 /** The MOTD file, cached in a file_cache type.
581 /** The RULES file, cached in a file_cache type.
585 /** The full pathname and filename of the PID
586 * file as defined in the configuration.
590 /** The connect classes in use by the IRC server.
594 /** A list of the classes for listening client ports
596 std::vector<ListenSocket*> ports;
598 /** socket objects that are attached to by modules
600 std::map<BufferedSocket*, Module*> SocketIOHookModule;
602 /** The 005 tokens of this server (ISUPPORT)
603 * populated/repopulated upon loading or unloading
610 std::vector<std::string> isupport;
612 /** STATS characters in this list are available
615 char UserStats[MAXBUF];
617 /** The path and filename of the ircd.log file
621 /** Default channel modes
623 char DefaultModes[MAXBUF];
625 /** Custom version string, which if defined can replace the system info in VERSION.
627 char CustomVersion[MAXBUF];
629 /** List of u-lined servers
631 std::map<irc::string, bool> ulines;
633 /** Max banlist sizes for channels (the std::string is a glob)
635 std::map<std::string, int> maxbans;
637 /** Directory where the inspircd binary resides
641 /** If set to true, no user DNS lookups are to be performed
645 /** If set to true, provide syntax hints for unknown commands
649 /** If set to true, users appear to quit then rejoin when their hosts change.
650 * This keeps clients synchronized properly.
654 /** If set to true, prefixed channel NOTICEs and PRIVMSGs will have the prefix
655 * added to the outgoing text for undernet style msg prefixing.
657 bool UndernetMsgPrefix;
659 /** If set to true, the full nick!user@host will be shown in the TOPIC command
660 * for who set the topic last. If false, only the nick is shown.
662 bool FullHostInTopic;
664 /** All oper type definitions from the config file
666 opertype_t opertypes;
668 /** All oper class definitions from the config file
670 operclass_t operclass;
672 /** Saved argv from startup
676 /** Saved argc from startup
680 /** Max channels per user
682 unsigned int MaxChans;
684 /** Oper max channels per user
686 unsigned int OperMaxChans;
688 /** TS6-like server ID.
689 * NOTE: 000...999 are usable for InspIRCd servers. This
690 * makes code simpler. 0AA, 1BB etc with letters are reserved
695 /** True if we have been told to run the testsuite from the commandline,
696 * rather than entering the mainloop.
700 /** Construct a new ServerConfig
702 ServerConfig(InspIRCd* Instance);
704 /** Clears the include stack in preperation for a Read() call.
708 /** Get server ID as string with required leading zeroes
710 std::string GetSID();
712 /** Update the 005 vector
716 /** Send the 005 numerics (ISUPPORT) to a user
718 void Send005(User* user);
720 /** Read the entire configuration into memory
721 * and initialize this class. All other methods
722 * should be used only by the core.
724 void Read(bool bail, User* user);
726 /** Read a file into a file_cache object
728 bool ReadFile(file_cache &F, const char* fname);
730 /* Returns true if the given string starts with a windows drive letter
732 bool StartsWithWindowsDriveLetter(const std::string &path);
734 /** Report a configuration error given in errormessage.
735 * @param bail If this is set to true, the error is sent to the console, and the program exits
736 * @param user If this is set to a non-null value, and bail is false, the errors are spooled to
737 * this user as SNOTICEs.
738 * If the parameter is NULL, the messages are spooled to all opers.
740 void ReportConfigError(const std::string &errormessage, bool bail, User* user);
742 /** Load 'filename' into 'target', with the new config parser everything is parsed into
743 * tag/key/value at load-time rather than at read-value time.
745 bool LoadConf(ConfigDataHash &target, FILE* &conf, const char* filename, std::ostringstream &errorstream);
747 /** Load 'filename' into 'target', with the new config parser everything is parsed into
748 * tag/key/value at load-time rather than at read-value time.
750 bool LoadConf(ConfigDataHash &target, FILE* &conf, const std::string &filename, std::ostringstream &errorstream);
752 /* Both these return true if the value existed or false otherwise */
754 /** Writes 'length' chars into 'result' as a string
756 bool ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds = false);
757 /** Writes 'length' chars into 'result' as a string
759 bool ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds = false);
761 /** Writes 'length' chars into 'result' as a string
763 bool ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds = false);
764 /** Writes 'length' chars into 'result' as a string
766 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);
768 /** Tries to convert the value to an integer and write it to 'result'
770 bool ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result);
771 /** Tries to convert the value to an integer and write it to 'result'
773 bool ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result);
774 /** Tries to convert the value to an integer and write it to 'result'
776 bool ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result);
777 /** Tries to convert the value to an integer and write it to 'result'
779 bool ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result);
781 /** Returns true if the value exists and has a true value, false otherwise
783 bool ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index);
784 /** Returns true if the value exists and has a true value, false otherwise
786 bool ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index);
787 /** Returns true if the value exists and has a true value, false otherwise
789 bool ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index);
790 /** Returns true if the value exists and has a true value, false otherwise
792 bool ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index);
794 /** Returns the number of occurences of tag in the config file
796 int ConfValueEnum(ConfigDataHash &target, const char* tag);
797 /** Returns the number of occurences of tag in the config file
799 int ConfValueEnum(ConfigDataHash &target, const std::string &tag);
801 /** Returns the numbers of vars inside the index'th 'tag in the config file
803 int ConfVarEnum(ConfigDataHash &target, const char* tag, int index);
804 /** Returns the numbers of vars inside the index'th 'tag in the config file
806 int ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index);
808 void ValidateHostname(const char* p, const std::string &tag, const std::string &val);
810 void ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild);
812 void ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val);
814 /** Get a pointer to the module which has hooked the given BufferedSocket class.
815 * @parameter port Port number
816 * @return Returns a pointer to the hooking module, or NULL
818 Module* GetIOHook(BufferedSocket* is);
820 /** Hook a module to an BufferedSocket class, so that it can receive notifications
821 * of low-level socket activity.
822 * @param iomod The module to hook to the socket
823 * @param is The BufferedSocket to attach to
824 * @return True if the hook was successful.
826 bool AddIOHook(Module* iomod, BufferedSocket* is);
828 /** Delete a module hook from an BufferedSocket.
829 * @param is The BufferedSocket to detatch from.
830 * @return True if the unhook was successful
832 bool DelIOHook(BufferedSocket* is);
834 /** Returns the fully qualified path to the inspircd directory
835 * @return The full program directory
837 std::string GetFullProgDir();
839 /** Returns true if a directory is valid (within the modules directory).
840 * @param dirandfile The directory and filename to check
841 * @return True if the directory is valid
843 static bool DirValid(const char* dirandfile);
845 /** Clean a filename, stripping the directories (and drives) from string.
846 * @param name Directory to tidy
847 * @return The cleaned filename
849 static char* CleanFilename(char* name);
851 /** Check if a file exists.
852 * @param file The full path to a file
853 * @return True if the file exists and is readable.
855 static bool FileExists(const char* file);
859 /** Initialize the disabled commands list
861 CoreExport bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance);
863 /** Initialize the oper types
865 bool InitTypes(ServerConfig* conf, const char* tag);
867 /** Initialize the oper classes
869 bool InitClasses(ServerConfig* conf, const char* tag);
871 /** Initialize an oper type
873 bool DoType(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
875 /** Initialize an oper class
877 bool DoClass(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
879 /** Finish initializing the oper types and classes
881 bool DoneClassesAndTypes(ServerConfig* conf, const char* tag);
885 /** Initialize x line
887 bool InitXLine(ServerConfig* conf, const char* tag);
889 /** Add a config-defined zline
891 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
893 /** Add a config-defined qline
895 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
897 /** Add a config-defined kline
899 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);
901 /** Add a config-defined eline
903 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types);