/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2009 InspIRCd Development Team * See: http://wiki.inspircd.org/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #ifndef INSPIRCD_CONFIGREADER #define INSPIRCD_CONFIGREADER #include #include #include #include #include "inspircd.h" #include "modules.h" #include "socketengine.h" #include "socket.h" /** Structure representing a single in config */ class CoreExport ConfigTag : public refcountbase { std::vector items; public: const std::string tag; const std::string src_name; const int src_line; /** Get the value of an option, using def if it does not exist */ std::string getString(const std::string& key, const std::string& def = ""); /** Get the value of an option, using def if it does not exist */ long getInt(const std::string& key, long def = 0); /** Get the value of an option, using def if it does not exist */ double getFloat(const std::string& key, double def = 0); /** Get the value of an option, using def if it does not exist */ bool getBool(const std::string& key, bool def = false); /** Get the value of an option * @param key The option to get * @param value The location to store the value (unmodified if does not exist) * @param allow_newline Allow newlines in the option (normally replaced with spaces) * @return true if the option exists */ bool readString(const std::string& key, std::string& value, bool allow_newline = false); std::string getTagLocation(); inline const std::vector& getItems() const { return items; } /** Create a new ConfigTag, giving access to the private KeyVal item list */ static ConfigTag* create(const std::string& Tag, const std::string& file, int line, std::vector*&items); private: ConfigTag(const std::string& Tag, const std::string& file, int line); }; /** Defines the server's length limits on various length-limited * items such as topics, nicknames, channel names etc. */ class ServerLimits { public: /** Maximum nickname length */ size_t NickMax; /** Maximum channel length */ size_t ChanMax; /** Maximum number of modes per line */ size_t MaxModes; /** Maximum length of ident, not including ~ etc */ size_t IdentMax; /** Maximum length of a quit message */ size_t MaxQuit; /** Maximum topic length */ size_t MaxTopic; /** Maximum kick message length */ size_t MaxKick; /** Maximum GECOS (real name) length */ size_t MaxGecos; /** Maximum away message length */ size_t MaxAway; /** Creating the class initialises it to the defaults * as in 1.1's ./configure script. Reading other values * from the config will change these values. */ ServerLimits() : NickMax(31), ChanMax(64), MaxModes(20), IdentMax(12), MaxQuit(255), MaxTopic(307), MaxKick(255), MaxGecos(128), MaxAway(200) { } /** Finalises the settings by adding one. This allows for them to be used as-is * without a 'value+1' when using the std::string assignment methods etc. */ void Finalise() { NickMax++; ChanMax++; IdentMax++; MaxQuit++; MaxTopic++; MaxKick++; MaxGecos++; MaxAway++; } }; struct CommandLineConf { /** If this value is true, the owner of the * server specified -nofork on the command * line, causing the daemon to stay in the * foreground. */ bool nofork; /** If this value if true then all log * messages will be output, regardless of * the level given in the config file. * This is set with the -debug commandline * option. */ bool forcedebug; /** If this is true then log output will be * written to the logfile. This is the default. * If you put -nolog on the commandline then * the logfile will not be written. * This is meant to be used in conjunction with * -debug for debugging without filling up the * hard disk. */ bool writelog; /** True if we have been told to run the testsuite from the commandline, * rather than entering the mainloop. */ bool TestSuite; /** Saved argc from startup */ int argc; /** Saved argv from startup */ char** argv; std::string startup_log; }; class CoreExport OperInfo : public refcountbase { public: std::set AllowedOperCommands; std::set AllowedPrivs; /** Allowed user modes from oper classes. */ std::bitset<64> AllowedUserModes; /** Allowed channel modes from oper classes. */ std::bitset<64> AllowedChanModes; /** block used for this oper-up. May be NULL. */ reference oper_block; /** block used for this oper-up. Valid for local users, may be NULL on remote */ reference type_block; /** blocks referenced from the block. These define individual permissions */ std::vector > class_blocks; /** Name of the oper type; i.e. the one shown in WHOIS */ std::string name; /** Get a configuration item, searching in the oper, type, and class blocks (in that order) */ std::string getConfig(const std::string& key); void init(); inline const char* NameStr() { return irc::Spacify(name.c_str()); } }; /** This class holds the bulk of the runtime configuration for the ircd. * It allows for reading new config values, accessing configuration files, * and storage of the configuration data needed to run the ircd, such as * the servername, connect classes, /ADMIN data, MOTDs and filenames etc. */ class CoreExport ServerConfig { private: void CrossCheckOperClassType(); void CrossCheckConnectBlocks(ServerConfig* current); public: /** Get a configuration tag * @param tag The name of the tag to get * @param offset get the Nth occurance of the tag */ ConfigTag* ConfValue(const std::string& tag); ConfigTagList ConfTags(const std::string& tag); /** Error stream, contains error output from any failed configuration parsing. */ std::stringstream errstr; /** True if this configuration is valid enough to run with */ bool valid; /** Used to indicate who we announce invites to on a channel */ enum InviteAnnounceState { INVITE_ANNOUNCE_NONE, INVITE_ANNOUNCE_ALL, INVITE_ANNOUNCE_OPS, INVITE_ANNOUNCE_DYNAMIC }; /** This holds all the information in the config file, * it's indexed by tag name to a vector of key/values. */ ConfigDataHash config_data; /** Length limits, see definition of ServerLimits class */ ServerLimits Limits; /** Configuration parsed from the command line. */ CommandLineConf cmdline; /** Clones CIDR range for ipv4 (0-32) * Defaults to 32 (checks clones on all IPs seperately) */ int c_ipv4_range; /** Clones CIDR range for ipv6 (0-128) * Defaults to 128 (checks on all IPs seperately) */ int c_ipv6_range; /** Max number of WhoWas entries per user. */ int WhoWasGroupSize; /** Max number of cumulative user-entries in WhoWas. * When max reached and added to, push out oldest entry FIFO style. */ int WhoWasMaxGroups; /** Max seconds a user is kept in WhoWas before being pruned. */ int WhoWasMaxKeep; /** Holds the server name of the local server * as defined by the administrator. */ std::string ServerName; /** Notice to give to users when they are Xlined */ std::string MoronBanner; /* Holds the network name the local server * belongs to. This is an arbitary field defined * by the administrator. */ std::string Network; /** Holds the description of the local server * as defined by the administrator. */ std::string ServerDesc; /** Holds the admin's name, for output in * the /ADMIN command. */ std::string AdminName; /** Holds the email address of the admin, * for output in the /ADMIN command. */ std::string AdminEmail; /** Holds the admin's nickname, for output * in the /ADMIN command */ std::string AdminNick; /** The admin-configured /DIE password */ std::string diepass; /** The admin-configured /RESTART password */ std::string restartpass; /** The hash method for *BOTH* the die and restart passwords. */ std::string powerhash; /** The pathname and filename of the message of the * day file, as defined by the administrator. */ std::string motd; /** The pathname and filename of the rules file, * as defined by the administrator. */ std::string rules; /** The quit prefix in use, or an empty string */ std::string PrefixQuit; /** The quit suffix in use, or an empty string */ std::string SuffixQuit; /** The fixed quit message in use, or an empty string */ std::string FixedQuit; /** The part prefix in use, or an empty string */ std::string PrefixPart; /** The part suffix in use, or an empty string */ std::string SuffixPart; /** The fixed part message in use, or an empty string */ std::string FixedPart; /** The last string found within a tag, or * an empty string. */ std::string DieValue; /** The DNS server to use for DNS queries */ std::string DNSServer; /** Pretend disabled commands don't exist. */ bool DisabledDontExist; /** This variable contains a space-seperated list * of commands which are disabled by the * administrator of the server for non-opers. */ std::string DisabledCommands; /** This variable identifies which usermodes have been diabled. */ char DisabledUModes[64]; /** This variable identifies which chanmodes have been disabled. */ char DisabledCModes[64]; /** The full path to the modules directory. * This is either set at compile time, or * overridden in the configuration file via * the tag. */ std::string ModPath; /** If set to true, then all opers on this server are * shown with a generic 'is an IRC operator' line rather * than the oper type. Oper types are still used internally. */ bool GenericOper; /** If this value is true, banned users (+b, not extbans) will not be able to change nick * if banned on any channel, nor to message them. */ bool RestrictBannedUsers; /** If this value is true, halfops have been * enabled in the configuration file. */ bool AllowHalfop; /** If this is set to true, then mode lists (e.g * MODE #chan b) are hidden from unprivileged * users. */ bool HideModeLists[256]; /** The number of seconds the DNS subsystem * will wait before timing out any request. */ int dns_timeout; /** The size of the read() buffer in the user * handling code, used to read data into a user's * recvQ. */ int NetBufferSize; /** The value to be used for listen() backlogs * as default. */ int MaxConn; /** The soft limit value assigned to the irc server. * The IRC server will not allow more than this * number of local users. */ unsigned int SoftLimit; /** Maximum number of targets for a multi target command * such as PRIVMSG or KICK */ unsigned int MaxTargets; /** The maximum number of /WHO results allowed * in any single /WHO command. */ int MaxWhoResults; /** How many seconds to wait before exiting * the program when /DIE is correctly issued. */ int DieDelay; /** True if we're going to hide netsplits as *.net *.split for non-opers */ bool HideSplits; /** True if we're going to hide ban reasons for non-opers (e.g. G-Lines, * K-Lines, Z-Lines) */ bool HideBans; /** Announce invites to the channel with a server notice */ InviteAnnounceState AnnounceInvites; /** If this is enabled then operators will * see invisible (+i) channels in /whois. */ bool OperSpyWhois; /** Set to a non-empty string to obfuscate the server name of users in WHOIS */ std::string HideWhoisServer; /** Set to a non empty string to obfuscate nicknames prepended to a KILL. */ std::string HideKillsServer; /** The MOTD file, cached in a file_cache type. */ file_cache MOTD; /** The RULES file, cached in a file_cache type. */ file_cache RULES; /** The full pathname and filename of the PID * file as defined in the configuration. */ std::string PID; /** The connect classes in use by the IRC server. */ ClassVector Classes; /** The 005 tokens of this server (ISUPPORT) * populated/repopulated upon loading or unloading * modules. */ std::string data005; /** isupport strings */ std::vector isupport; /** STATS characters in this list are available * only to operators. */ std::string UserStats; /** Default channel modes */ std::string DefaultModes; /** Custom version string, which if defined can replace the system info in VERSION. */ std::string CustomVersion; /** List of u-lined servers */ std::map ulines; /** Max banlist sizes for channels (the std::string is a glob) */ std::map maxbans; /** If set to true, no user DNS lookups are to be performed */ bool NoUserDns; /** If set to true, provide syntax hints for unknown commands */ bool SyntaxHints; /** If set to true, users appear to quit then rejoin when their hosts change. * This keeps clients synchronized properly. */ bool CycleHosts; /** If set to true, prefixed channel NOTICEs and PRIVMSGs will have the prefix * added to the outgoing text for undernet style msg prefixing. */ bool UndernetMsgPrefix; /** If set to true, the full nick!user@host will be shown in the TOPIC command * for who set the topic last. If false, only the nick is shown. */ bool FullHostInTopic; /** Oper block and type index. * For anonymous oper blocks (type only), prefix with a space. */ OperIndex oper_blocks; /** Max channels per user */ unsigned int MaxChans; /** Oper max channels per user */ unsigned int OperMaxChans; /** TS6-like server ID. * NOTE: 000...999 are usable for InspIRCd servers. This * makes code simpler. 0AA, 1BB etc with letters are reserved * for services use. */ std::string sid; /** Construct a new ServerConfig */ ServerConfig(); /** Get server ID as string with required leading zeroes */ std::string GetSID(); /** Update the 005 vector */ void Update005(); /** Send the 005 numerics (ISUPPORT) to a user */ void Send005(User* user); /** Read the entire configuration into memory * and initialize this class. All other methods * should be used only by the core. */ void Read(); /** Apply configuration changes from the old configuration. */ void Apply(ServerConfig* old, const std::string &useruid); void ApplyModules(User* user); void Fill(); /** Read a file into a file_cache object */ bool ReadFile(file_cache &F, const std::string& fname); /* Returns true if the given string starts with a windows drive letter */ bool StartsWithWindowsDriveLetter(const std::string &path); bool ApplyDisabledCommands(const std::string& data); /** Clean a filename, stripping the directories (and drives) from string. * @param name Directory to tidy * @return The cleaned filename */ static const char* CleanFilename(const char* name); /** Check if a file exists. * @param file The full path to a file * @return True if the file exists and is readable. */ static bool FileExists(const char* file); /** If this value is true, invites will bypass more than just +i */ bool InvBypassModes; }; #endif