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.TH "ConfigReader" 3 "13 Apr 2005" "InspIRCd" \" -*- nroff -*-
.ad l
.nh
.SH NAME
ConfigReader \- Allows reading of values from configuration files This class allows a module to read from either the main configuration file (inspircd.conf) or from a module-specified configuration file.  

.PP
.SH SYNOPSIS
.br
.PP
\fC#include <modules.h>\fP
.PP
Inherits \fBclassbase\fP.
.PP
.SS "Public Member Functions"

.in +1c
.ti -1c
.RI "\fBConfigReader\fP ()"
.br
.RI "\fIDefault constructor. \fP"
.ti -1c
.RI "\fBConfigReader\fP (std::string filename)"
.br
.RI "\fIOverloaded constructor. \fP"
.ti -1c
.RI "\fB~ConfigReader\fP ()"
.br
.RI "\fIDefault destructor. \fP"
.ti -1c
.RI "std::string \fBReadValue\fP (std::string tag, std::string name, int index)"
.br
.RI "\fIRetrieves a value from the config file. \fP"
.ti -1c
.RI "bool \fBReadFlag\fP (std::string tag, std::string name, int index)"
.br
.RI "\fIRetrieves a boolean value from the config file. \fP"
.ti -1c
.RI "long \fBReadInteger\fP (std::string tag, std::string name, int index, bool needs_unsigned)"
.br
.RI "\fIRetrieves an integer value from the config file. \fP"
.ti -1c
.RI "long \fBGetError\fP ()"
.br
.RI "\fIReturns the last error to occur. \fP"
.ti -1c
.RI "int \fBEnumerate\fP (std::string tag)"
.br
.RI "\fICounts the number of times a given tag appears in the config file. \fP"
.ti -1c
.RI "bool \fBVerify\fP ()"
.br
.RI "\fIReturns true if a config file is valid. \fP"
.ti -1c
.RI "void \fBDumpErrors\fP (bool bail, \fBuserrec\fP *user)"
.br
.RI "\fIDumps the list of errors in a config file to an output location. \fP"
.ti -1c
.RI "int \fBEnumerateValues\fP (std::string tag, int index)"
.br
.RI "\fIReturns the number of items within a tag. \fP"
.in -1c
.SS "Protected Attributes"

.in +1c
.ti -1c
.RI "std::stringstream * \fBcache\fP"
.br
.RI "\fIThe contents of the configuration file This protected member should never be accessed by a module (and cannot be accessed unless the core is changed). \fP"
.ti -1c
.RI "std::stringstream * \fBerrorlog\fP"
.br
.ti -1c
.RI "bool \fBreaderror\fP"
.br
.RI "\fIUsed to store errors. \fP"
.ti -1c
.RI "long \fBerror\fP"
.br
.in -1c
.SH "Detailed Description"
.PP 
Allows reading of values from configuration files This class allows a module to read from either the main configuration file (inspircd.conf) or from a module-specified configuration file. 

It may either be instantiated with one parameter or none. Constructing the class using one parameter allows you to specify a path to your own configuration file, otherwise, inspircd.conf is read. 
.PP
Definition at line 790 of file modules.h.
.SH "Constructor & Destructor Documentation"
.PP 
.SS "ConfigReader::ConfigReader ()"
.PP
Default constructor. This constructor initialises the ConfigReader class to read the inspircd.conf file as specified when running ./configure.Definition at line 675 of file modules.cpp.
.PP
References cache, CONF_FILE_NOT_FOUND, error, errorlog, and readerror.
.PP
.nf
676 {
677         this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out);
678         this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out);
679         this->readerror = LoadConf(CONFIG_FILE,this->cache,this->errorlog);
680         if (!this->readerror)
681                 this->error = CONF_FILE_NOT_FOUND;
682 }
.fi
.SS "ConfigReader::ConfigReader (std::string filename)"
.PP
Overloaded constructor. This constructor initialises the ConfigReader class to read a user-specified config fileDefinition at line 694 of file modules.cpp.
.PP
References cache, CONF_FILE_NOT_FOUND, error, errorlog, and readerror.
.PP
.nf
695 {
696         this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out);
697         this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out);
698         this->readerror = LoadConf(filename.c_str(),this->cache,this->errorlog);
699         if (!this->readerror)
700                 this->error = CONF_FILE_NOT_FOUND;
701 };
.fi
.SS "ConfigReader::~\fBConfigReader\fP ()"
.PP
Default destructor. This method destroys the ConfigReader class.Definition at line 685 of file modules.cpp.
.PP
References cache, and errorlog.
.PP
.nf
686 {
687         if (this->cache)
688                 delete this->cache;
689         if (this->errorlog)
690                 delete this->errorlog;
691 }
.fi
.SH "Member Function Documentation"
.PP 
.SS "void ConfigReader::DumpErrors (bool bail, \fBuserrec\fP * user)"
.PP
Dumps the list of errors in a config file to an output location. If bail is true, then the program will abort. If bail is false and user points to a valid user record, the error report will be spooled to the given user by means of NOTICE. if bool is false AND user is false, the error report will be spooled to all opers by means of a NOTICE to all opers.Definition at line 772 of file modules.cpp.
.PP
References errorlog, connection::fd, and userrec::nick.
.PP
.nf
773 {
774         if (bail)
775         {
776                 printf('There were errors in your configuration:\n%s',errorlog->str().c_str());
777                 exit(0);
778         }
779         else
780         {
781                 char dataline[1024];
782                 if (user)
783                 {
784                         WriteServ(user->fd,'NOTICE %s :There were errors in the configuration file:',user->nick);
785                         while (!errorlog->eof())
786                         {
787                                 errorlog->getline(dataline,1024);
788                                 WriteServ(user->fd,'NOTICE %s :%s',user->nick,dataline);
789                         }
790                 }
791                 else
792                 {
793                         WriteOpers('There were errors in the configuration file:',user->nick);
794                         while (!errorlog->eof())
795                         {
796                                 errorlog->getline(dataline,1024);
797                                 WriteOpers(dataline);
798                         }
799                 }
800                 return;
801         }
802 }
.fi
.SS "int ConfigReader::Enumerate (std::string tag)"
.PP
Counts the number of times a given tag appears in the config file. This method counts the number of times a tag appears in a config file, for use where there are several tags of the same kind, e.g. with opers and connect types. It can be used with the index value of \fBConfigReader::ReadValue\fP to loop through all copies of a multiple instance tag.Definition at line 805 of file modules.cpp.
.PP
References cache.
.PP
.nf
806 {
807         return EnumConf(cache,tag.c_str());
808 }
.fi
.SS "int ConfigReader::EnumerateValues (std::string tag, int index)"
.PP
Returns the number of items within a tag. For example if the tag was <test tag='blah' data='foo'> then this function would return 2. Spaces and newlines both qualify as valid seperators between values.Definition at line 810 of file modules.cpp.
.PP
References cache.
.PP
.nf
811 {
812         return EnumValues(cache, tag.c_str(), index);
813 }
.fi
.SS "long ConfigReader::GetError ()"
.PP
Returns the last error to occur. Valid errors can be found by looking in \fBmodules.h\fP. Any nonzero value indicates an error condition. A call to \fBGetError()\fP resets the error flag back to 0.Definition at line 765 of file modules.cpp.
.PP
References error.
.PP
.nf
766 {
767         long olderr = this->error;
768         this->error = 0;
769         return olderr;
770 }
.fi
.SS "bool ConfigReader::ReadFlag (std::string tag, std::string name, int index)"
.PP
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.Definition at line 719 of file modules.cpp.
.PP
References cache, CONF_VALUE_NOT_FOUND, and error.
.PP
.nf
720 {
721         char val[MAXBUF];
722         char t[MAXBUF];
723         char n[MAXBUF];
724         strlcpy(t,tag.c_str(),MAXBUF);
725         strlcpy(n,name.c_str(),MAXBUF);
726         int res = ReadConf(cache,t,n,index,val);
727         if (!res)
728         {
729                 this->error = CONF_VALUE_NOT_FOUND;
730                 return false;
731         }
732         std::string s = val;
733         return ((s == 'yes') || (s == 'YES') || (s == 'true') || (s == 'TRUE') || (s == '1'));
734 }
.fi
.SS "long ConfigReader::ReadInteger (std::string tag, std::string name, int index, bool needs_unsigned)"
.PP
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 \fBGetError()\fP 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 \fBGetError()\fP will return CONF_NOT_UNSIGNEDDefinition at line 736 of file modules.cpp.
.PP
References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, and error.
.PP
.nf
737 {
738         char val[MAXBUF];
739         char t[MAXBUF];
740         char n[MAXBUF];
741         strlcpy(t,tag.c_str(),MAXBUF);
742         strlcpy(n,name.c_str(),MAXBUF);
743         int res = ReadConf(cache,t,n,index,val);
744         if (!res)
745         {
746                 this->error = CONF_VALUE_NOT_FOUND;
747                 return 0;
748         }
749         for (int i = 0; i < strlen(val); i++)
750         {
751                 if (!isdigit(val[i]))
752                 {
753                         this->error = CONF_NOT_A_NUMBER;
754                         return 0;
755                 }
756         }
757         if ((needs_unsigned) && (atoi(val)<0))
758         {
759                 this->error = CONF_NOT_UNSIGNED;
760                 return 0;
761         }
762         return atoi(val);
763 }
.fi
.SS "std::string ConfigReader::ReadValue (std::string tag, std::string name, int index)"
.PP
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.Definition at line 703 of file modules.cpp.
.PP
References cache, CONF_VALUE_NOT_FOUND, and error.
.PP
.nf
704 {
705         char val[MAXBUF];
706         char t[MAXBUF];
707         char n[MAXBUF];
708         strlcpy(t,tag.c_str(),MAXBUF);
709         strlcpy(n,name.c_str(),MAXBUF);
710         int res = ReadConf(cache,t,n,index,val);
711         if (!res)
712         {
713                 this->error = CONF_VALUE_NOT_FOUND;
714                 return '';
715         }
716         return std::string(val);
717 }
.fi
.SS "bool ConfigReader::Verify ()"
.PP
Returns true if a config file is valid. This method is partially implemented and will only return false if the config file does not exist or could not be opened.Definition at line 815 of file modules.cpp.
.PP
References readerror.
.PP
.nf
816 {
817         return this->readerror;
818 }
.fi
.SH "Member Data Documentation"
.PP 
.SS "std::stringstream* \fBConfigReader::cache\fP\fC [protected]\fP"
.PP
The contents of the configuration file This protected member should never be accessed by a module (and cannot be accessed unless the core is changed). It will contain a pointer to the configuration file data with unneeded data (such as comments) stripped from it.Definition at line 798 of file modules.h.
.PP
Referenced by ConfigReader(), Enumerate(), EnumerateValues(), ReadFlag(), ReadInteger(), ReadValue(), and ~ConfigReader().
.SS "long \fBConfigReader::error\fP\fC [protected]\fP"
.PP
Definition at line 803 of file modules.h.
.PP
Referenced by ConfigReader(), GetError(), ReadFlag(), ReadInteger(), and ReadValue().
.SS "std::stringstream* \fBConfigReader::errorlog\fP\fC [protected]\fP"
.PP
Definition at line 799 of file modules.h.
.PP
Referenced by ConfigReader(), DumpErrors(), and ~ConfigReader().
.SS "bool \fBConfigReader::readerror\fP\fC [protected]\fP"
.PP
Used to store errors. Definition at line 802 of file modules.h.
.PP
Referenced by ConfigReader(), and Verify().

.SH "Author"
.PP 
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