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|
.TH "ConfigReader" 3 "27 Nov 2005" "Version 1.0Betareleases" "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 (\fBstd::string\fP filename)"
.br
.RI "\fIOverloaded constructor. \fP"
.ti -1c
.RI "\fB~ConfigReader\fP ()"
.br
.RI "\fIDefault destructor. \fP"
.ti -1c
.RI "\fBstd::string\fP \fBReadValue\fP (\fBstd::string\fP tag, \fBstd::string\fP name, int index)"
.br
.RI "\fIRetrieves a value from the config file. \fP"
.ti -1c
.RI "bool \fBReadFlag\fP (\fBstd::string\fP tag, \fBstd::string\fP name, int index)"
.br
.RI "\fIRetrieves a boolean value from the config file. \fP"
.ti -1c
.RI "long \fBReadInteger\fP (\fBstd::string\fP tag, \fBstd::string\fP 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 (\fBstd::string\fP 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 (\fBstd::string\fP 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 1121 of file modules.h.
.SH "Constructor & Destructor Documentation"
.PP
.SS "ConfigReader::ConfigReader ()"
.PP
Default constructor.
.PP
This constructor initialises the ConfigReader class to read the inspircd.conf file as specified when running ./configure.
.PP
Definition at line 796 of file modules.cpp.
.PP
References cache, CONF_FILE_NOT_FOUND, error, errorlog, include_stack, and readerror.
.PP
.nf
797 {
798 include_stack.clear();
799 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out);
800 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out);
801 this->readerror = LoadConf(CONFIG_FILE,this->cache,this->errorlog);
802 if (!this->readerror)
803 this->error = CONF_FILE_NOT_FOUND;
804 }
.fi
.PP
.SS "ConfigReader::ConfigReader (\fBstd::string\fP filename)"
.PP
Overloaded constructor.
.PP
This constructor initialises the ConfigReader class to read a user-specified config file
.PP
Definition at line 816 of file modules.cpp.
.PP
References cache, CONF_FILE_NOT_FOUND, error, errorlog, and readerror.
.PP
.nf
817 {
818 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out);
819 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out);
820 this->readerror = LoadConf(filename.c_str(),this->cache,this->errorlog);
821 if (!this->readerror)
822 this->error = CONF_FILE_NOT_FOUND;
823 };
.fi
.PP
.SS "ConfigReader::~ConfigReader ()"
.PP
Default destructor.
.PP
This method destroys the ConfigReader class.
.PP
Definition at line 807 of file modules.cpp.
.PP
References cache, and errorlog.
.PP
.nf
808 {
809 if (this->cache)
810 delete this->cache;
811 if (this->errorlog)
812 delete this->errorlog;
813 }
.fi
.PP
.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.
.PP
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.
.PP
Definition at line 894 of file modules.cpp.
.PP
References errorlog, connection::fd, and userrec::nick.
.PP
.nf
895 {
896 if (bail)
897 {
898 printf('There were errors in your configuration:\n%s',errorlog->str().c_str());
899 exit(0);
900 }
901 else
902 {
903 char dataline[1024];
904 if (user)
905 {
906 WriteServ(user->fd,'NOTICE %s :There were errors in the configuration file:',user->nick);
907 while (!errorlog->eof())
908 {
909 errorlog->getline(dataline,1024);
910 WriteServ(user->fd,'NOTICE %s :%s',user->nick,dataline);
911 }
912 }
913 else
914 {
915 WriteOpers('There were errors in the configuration file:',user->nick);
916 while (!errorlog->eof())
917 {
918 errorlog->getline(dataline,1024);
919 WriteOpers(dataline);
920 }
921 }
922 return;
923 }
924 }
.fi
.PP
.SS "int ConfigReader::Enumerate (\fBstd::string\fP tag)"
.PP
Counts the number of times a given tag appears in the config file.
.PP
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.
.PP
Definition at line 927 of file modules.cpp.
.PP
References cache.
.PP
.nf
928 {
929 return EnumConf(cache,tag.c_str());
930 }
.fi
.PP
.SS "int ConfigReader::EnumerateValues (\fBstd::string\fP tag, int index)"
.PP
Returns the number of items within a tag.
.PP
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.
.PP
Definition at line 932 of file modules.cpp.
.PP
References cache.
.PP
.nf
933 {
934 return EnumValues(cache, tag.c_str(), index);
935 }
.fi
.PP
.SS "long ConfigReader::GetError ()"
.PP
Returns the last error to occur.
.PP
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.
.PP
Definition at line 887 of file modules.cpp.
.PP
References error.
.PP
.nf
888 {
889 long olderr = this->error;
890 this->error = 0;
891 return olderr;
892 }
.fi
.PP
.SS "bool ConfigReader::ReadFlag (\fBstd::string\fP tag, \fBstd::string\fP name, int index)"
.PP
Retrieves a boolean value from the config file.
.PP
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.
.PP
Definition at line 841 of file modules.cpp.
.PP
References cache, CONF_VALUE_NOT_FOUND, and error.
.PP
.nf
842 {
843 char val[MAXBUF];
844 char t[MAXBUF];
845 char n[MAXBUF];
846 strlcpy(t,tag.c_str(),MAXBUF);
847 strlcpy(n,name.c_str(),MAXBUF);
848 int res = ReadConf(cache,t,n,index,val);
849 if (!res)
850 {
851 this->error = CONF_VALUE_NOT_FOUND;
852 return false;
853 }
854 std::string s = val;
855 return ((s == 'yes') || (s == 'YES') || (s == 'true') || (s == 'TRUE') || (s == '1'));
856 }
.fi
.PP
.SS "long ConfigReader::ReadInteger (\fBstd::string\fP tag, \fBstd::string\fP name, int index, bool needs_unsigned)"
.PP
Retrieves an integer value from the config file.
.PP
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_UNSIGNED
.PP
Definition at line 858 of file modules.cpp.
.PP
References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, and error.
.PP
.nf
859 {
860 char val[MAXBUF];
861 char t[MAXBUF];
862 char n[MAXBUF];
863 strlcpy(t,tag.c_str(),MAXBUF);
864 strlcpy(n,name.c_str(),MAXBUF);
865 int res = ReadConf(cache,t,n,index,val);
866 if (!res)
867 {
868 this->error = CONF_VALUE_NOT_FOUND;
869 return 0;
870 }
871 for (unsigned int i = 0; i < strlen(val); i++)
872 {
873 if (!isdigit(val[i]))
874 {
875 this->error = CONF_NOT_A_NUMBER;
876 return 0;
877 }
878 }
879 if ((needs_unsigned) && (atoi(val)<0))
880 {
881 this->error = CONF_NOT_UNSIGNED;
882 return 0;
883 }
884 return atoi(val);
885 }
.fi
.PP
.SS "\fBstd::string\fP ConfigReader::ReadValue (\fBstd::string\fP tag, \fBstd::string\fP name, int index)"
.PP
Retrieves a value from the config file.
.PP
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.
.PP
Definition at line 825 of file modules.cpp.
.PP
References cache, CONF_VALUE_NOT_FOUND, and error.
.PP
.nf
826 {
827 char val[MAXBUF];
828 char t[MAXBUF];
829 char n[MAXBUF];
830 strlcpy(t,tag.c_str(),MAXBUF);
831 strlcpy(n,name.c_str(),MAXBUF);
832 int res = ReadConf(cache,t,n,index,val);
833 if (!res)
834 {
835 this->error = CONF_VALUE_NOT_FOUND;
836 return '';
837 }
838 return val;
839 }
.fi
.PP
.SS "bool ConfigReader::Verify ()"
.PP
Returns true if a config file is valid.
.PP
This method is partially implemented and will only return false if the config file does not exist or could not be opened.
.PP
Definition at line 937 of file modules.cpp.
.PP
References readerror.
.PP
.nf
938 {
939 return this->readerror;
940 }
.fi
.PP
.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).
.PP
It will contain a pointer to the configuration file data with unneeded data (such as comments) stripped from it.
.PP
Definition at line 1129 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 1134 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 1130 of file modules.h.
.PP
Referenced by ConfigReader(), DumpErrors(), and ~ConfigReader().
.SS "bool \fBConfigReader::readerror\fP\fC [protected]\fP"
.PP
Used to store errors.
.PP
Definition at line 1133 of file modules.h.
.PP
Referenced by ConfigReader(), and Verify().
.SH "Author"
.PP
Generated automatically by Doxygen for InspIRCd from the source code.
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