.TH "ConfigReader" 3 "14 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 1525 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 734 of file modules.cpp. .PP References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. .PP .nf 735 { 736 Config->ClearStack(); 737 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); 738 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); 739 this->readerror = Config->LoadConf(CONFIG_FILE,this->cache,this->errorlog); 740 if (!this->readerror) 741 this->error = CONF_FILE_NOT_FOUND; 742 } .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 754 of file modules.cpp. .PP References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. .PP .nf 755 { 756 Config->ClearStack(); 757 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); 758 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); 759 this->readerror = Config->LoadConf(filename.c_str(),this->cache,this->errorlog); 760 if (!this->readerror) 761 this->error = CONF_FILE_NOT_FOUND; 762 }; .fi .PP .SS "ConfigReader::~ConfigReader ()" .PP Default destructor. .PP This method destroys the ConfigReader class. .PP Definition at line 745 of file modules.cpp. .PP References cache, and errorlog. .PP .nf 746 { 747 if (this->cache) 748 delete this->cache; 749 if (this->errorlog) 750 delete this->errorlog; 751 } .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 833 of file modules.cpp. .PP References errorlog, connection::fd, and userrec::nick. .PP .nf 834 { 835 if (bail) 836 { 837 printf('There were errors in your configuration:\n%s',errorlog->str().c_str()); 838 exit(0); 839 } 840 else 841 { 842 char dataline[1024]; 843 if (user) 844 { 845 WriteServ(user->fd,'NOTICE %s :There were errors in the configuration file:',user->nick); 846 while (!errorlog->eof()) 847 { 848 errorlog->getline(dataline,1024); 849 WriteServ(user->fd,'NOTICE %s :%s',user->nick,dataline); 850 } 851 } 852 else 853 { 854 WriteOpers('There were errors in the configuration file:',user->nick); 855 while (!errorlog->eof()) 856 { 857 errorlog->getline(dataline,1024); 858 WriteOpers(dataline); 859 } 860 } 861 return; 862 } 863 } .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 866 of file modules.cpp. .PP References cache, and ServerConfig::EnumConf(). .PP .nf 867 { 868 return Config->EnumConf(cache,tag.c_str()); 869 } .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 871 of file modules.cpp. .PP References cache, and ServerConfig::EnumValues(). .PP .nf 872 { 873 return Config->EnumValues(cache, tag.c_str(), index); 874 } .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 826 of file modules.cpp. .PP References error. .PP .nf 827 { 828 long olderr = this->error; 829 this->error = 0; 830 return olderr; 831 } .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 780 of file modules.cpp. .PP References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 781 { 782 char val[MAXBUF]; 783 char t[MAXBUF]; 784 char n[MAXBUF]; 785 strlcpy(t,tag.c_str(),MAXBUF); 786 strlcpy(n,name.c_str(),MAXBUF); 787 int res = Config->ReadConf(cache,t,n,index,val); 788 if (!res) 789 { 790 this->error = CONF_VALUE_NOT_FOUND; 791 return false; 792 } 793 std::string s = val; 794 return ((s == 'yes') || (s == 'YES') || (s == 'true') || (s == 'TRUE') || (s == '1')); 795 } .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 797 of file modules.cpp. .PP References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 798 { 799 char val[MAXBUF]; 800 char t[MAXBUF]; 801 char n[MAXBUF]; 802 strlcpy(t,tag.c_str(),MAXBUF); 803 strlcpy(n,name.c_str(),MAXBUF); 804 int res = Config->ReadConf(cache,t,n,index,val); 805 if (!res) 806 { 807 this->error = CONF_VALUE_NOT_FOUND; 808 return 0; 809 } 810 for (unsigned int i = 0; i < strlen(val); i++) 811 { 812 if (!isdigit(val[i])) 813 { 814 this->error = CONF_NOT_A_NUMBER; 815 return 0; 816 } 817 } 818 if ((needs_unsigned) && (atoi(val)<0)) 819 { 820 this->error = CONF_NOT_UNSIGNED; 821 return 0; 822 } 823 return atoi(val); 824 } .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 764 of file modules.cpp. .PP References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 765 { 766 char val[MAXBUF]; 767 char t[MAXBUF]; 768 char n[MAXBUF]; 769 strlcpy(t,tag.c_str(),MAXBUF); 770 strlcpy(n,name.c_str(),MAXBUF); 771 int res = Config->ReadConf(cache,t,n,index,val); 772 if (!res) 773 { 774 this->error = CONF_VALUE_NOT_FOUND; 775 return ''; 776 } 777 return val; 778 } .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 876 of file modules.cpp. .PP References readerror. .PP .nf 877 { 878 return this->readerror; 879 } .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 1533 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 1538 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 1534 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 1537 of file modules.h. .PP Referenced by ConfigReader(), and Verify(). .SH "Author" .PP Generated automatically by Doxygen for InspIRCd from the source code.