.TH "ConfigReader" 3 "19 Dec 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 \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 1550 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 735 of file modules.cpp. .PP References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. .PP .nf 736 { 737 Config->ClearStack(); 738 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); 739 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); 740 this->readerror = Config->LoadConf(CONFIG_FILE,this->cache,this->errorlog); 741 if (!this->readerror) 742 this->error = CONF_FILE_NOT_FOUND; 743 } .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 755 of file modules.cpp. .PP References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. .PP .nf 756 { 757 Config->ClearStack(); 758 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); 759 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); 760 this->readerror = Config->LoadConf(filename.c_str(),this->cache,this->errorlog); 761 if (!this->readerror) 762 this->error = CONF_FILE_NOT_FOUND; 763 }; .fi .PP .SS "ConfigReader::~ConfigReader ()" .PP Default destructor. .PP This method destroys the ConfigReader class. .PP Definition at line 746 of file modules.cpp. .PP References cache, and errorlog. .PP .nf 747 { 748 if (this->cache) 749 delete this->cache; 750 if (this->errorlog) 751 delete this->errorlog; 752 } .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 834 of file modules.cpp. .PP References errorlog, connection::fd, userrec::nick, WriteOpers(), and WriteServ(). .PP .nf 835 { 836 if (bail) 837 { 838 printf('There were errors in your configuration:\n%s',errorlog->str().c_str()); 839 exit(0); 840 } 841 else 842 { 843 char dataline[1024]; 844 if (user) 845 { 846 WriteServ(user->fd,'NOTICE %s :There were errors in the configuration file:',user->nick); 847 while (!errorlog->eof()) 848 { 849 errorlog->getline(dataline,1024); 850 WriteServ(user->fd,'NOTICE %s :%s',user->nick,dataline); 851 } 852 } 853 else 854 { 855 WriteOpers('There were errors in the configuration file:',user->nick); 856 while (!errorlog->eof()) 857 { 858 errorlog->getline(dataline,1024); 859 WriteOpers(dataline); 860 } 861 } 862 return; 863 } 864 } .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 867 of file modules.cpp. .PP References cache, and ServerConfig::EnumConf(). .PP .nf 868 { 869 return Config->EnumConf(cache,tag.c_str()); 870 } .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 then this function would return 2. Spaces and newlines both qualify as valid seperators between values. .PP Definition at line 872 of file modules.cpp. .PP References cache, and ServerConfig::EnumValues(). .PP .nf 873 { 874 return Config->EnumValues(cache, tag.c_str(), index); 875 } .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 827 of file modules.cpp. .PP References error. .PP .nf 828 { 829 long olderr = this->error; 830 this->error = 0; 831 return olderr; 832 } .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 781 of file modules.cpp. .PP References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 782 { 783 char val[MAXBUF]; 784 char t[MAXBUF]; 785 char n[MAXBUF]; 786 strlcpy(t,tag.c_str(),MAXBUF); 787 strlcpy(n,name.c_str(),MAXBUF); 788 int res = Config->ReadConf(cache,t,n,index,val); 789 if (!res) 790 { 791 this->error = CONF_VALUE_NOT_FOUND; 792 return false; 793 } 794 std::string s = val; 795 return ((s == 'yes') || (s == 'YES') || (s == 'true') || (s == 'TRUE') || (s == '1')); 796 } .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 798 of file modules.cpp. .PP References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 799 { 800 char val[MAXBUF]; 801 char t[MAXBUF]; 802 char n[MAXBUF]; 803 strlcpy(t,tag.c_str(),MAXBUF); 804 strlcpy(n,name.c_str(),MAXBUF); 805 int res = Config->ReadConf(cache,t,n,index,val); 806 if (!res) 807 { 808 this->error = CONF_VALUE_NOT_FOUND; 809 return 0; 810 } 811 for (unsigned int i = 0; i < strlen(val); i++) 812 { 813 if (!isdigit(val[i])) 814 { 815 this->error = CONF_NOT_A_NUMBER; 816 return 0; 817 } 818 } 819 if ((needs_unsigned) && (atoi(val)<0)) 820 { 821 this->error = CONF_NOT_UNSIGNED; 822 return 0; 823 } 824 return atoi(val); 825 } .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 765 of file modules.cpp. .PP References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 766 { 767 char val[MAXBUF]; 768 char t[MAXBUF]; 769 char n[MAXBUF]; 770 strlcpy(t,tag.c_str(),MAXBUF); 771 strlcpy(n,name.c_str(),MAXBUF); 772 int res = Config->ReadConf(cache,t,n,index,val); 773 if (!res) 774 { 775 this->error = CONF_VALUE_NOT_FOUND; 776 return ''; 777 } 778 return val; 779 } .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 877 of file modules.cpp. .PP References readerror. .PP .nf 878 { 879 return this->readerror; 880 } .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 1558 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 1563 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 1559 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 1562 of file modules.h. .PP Referenced by ConfigReader(), and Verify(). .SH "Author" .PP Generated automatically by Doxygen for InspIRCd from the source code.