.TH "ConfigReader" 3 "15 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 1532 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 736 of file modules.cpp. .PP References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. .PP .nf 737 { 738 Config->ClearStack(); 739 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); 740 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); 741 this->readerror = Config->LoadConf(CONFIG_FILE,this->cache,this->errorlog); 742 if (!this->readerror) 743 this->error = CONF_FILE_NOT_FOUND; 744 } .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 756 of file modules.cpp. .PP References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. .PP .nf 757 { 758 Config->ClearStack(); 759 this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); 760 this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); 761 this->readerror = Config->LoadConf(filename.c_str(),this->cache,this->errorlog); 762 if (!this->readerror) 763 this->error = CONF_FILE_NOT_FOUND; 764 }; .fi .PP .SS "ConfigReader::~ConfigReader ()" .PP Default destructor. .PP This method destroys the ConfigReader class. .PP Definition at line 747 of file modules.cpp. .PP References cache, and errorlog. .PP .nf 748 { 749 if (this->cache) 750 delete this->cache; 751 if (this->errorlog) 752 delete this->errorlog; 753 } .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 835 of file modules.cpp. .PP References errorlog, connection::fd, userrec::nick, WriteOpers(), and WriteServ(). .PP .nf 836 { 837 if (bail) 838 { 839 printf('There were errors in your configuration:\n%s',errorlog->str().c_str()); 840 exit(0); 841 } 842 else 843 { 844 char dataline[1024]; 845 if (user) 846 { 847 WriteServ(user->fd,'NOTICE %s :There were errors in the configuration file:',user->nick); 848 while (!errorlog->eof()) 849 { 850 errorlog->getline(dataline,1024); 851 WriteServ(user->fd,'NOTICE %s :%s',user->nick,dataline); 852 } 853 } 854 else 855 { 856 WriteOpers('There were errors in the configuration file:',user->nick); 857 while (!errorlog->eof()) 858 { 859 errorlog->getline(dataline,1024); 860 WriteOpers(dataline); 861 } 862 } 863 return; 864 } 865 } .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 868 of file modules.cpp. .PP References cache, and ServerConfig::EnumConf(). .PP .nf 869 { 870 return Config->EnumConf(cache,tag.c_str()); 871 } .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 873 of file modules.cpp. .PP References cache, and ServerConfig::EnumValues(). .PP .nf 874 { 875 return Config->EnumValues(cache, tag.c_str(), index); 876 } .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 828 of file modules.cpp. .PP References error. .PP .nf 829 { 830 long olderr = this->error; 831 this->error = 0; 832 return olderr; 833 } .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 782 of file modules.cpp. .PP References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 783 { 784 char val[MAXBUF]; 785 char t[MAXBUF]; 786 char n[MAXBUF]; 787 strlcpy(t,tag.c_str(),MAXBUF); 788 strlcpy(n,name.c_str(),MAXBUF); 789 int res = Config->ReadConf(cache,t,n,index,val); 790 if (!res) 791 { 792 this->error = CONF_VALUE_NOT_FOUND; 793 return false; 794 } 795 std::string s = val; 796 return ((s == 'yes') || (s == 'YES') || (s == 'true') || (s == 'TRUE') || (s == '1')); 797 } .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 799 of file modules.cpp. .PP References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 800 { 801 char val[MAXBUF]; 802 char t[MAXBUF]; 803 char n[MAXBUF]; 804 strlcpy(t,tag.c_str(),MAXBUF); 805 strlcpy(n,name.c_str(),MAXBUF); 806 int res = Config->ReadConf(cache,t,n,index,val); 807 if (!res) 808 { 809 this->error = CONF_VALUE_NOT_FOUND; 810 return 0; 811 } 812 for (unsigned int i = 0; i < strlen(val); i++) 813 { 814 if (!isdigit(val[i])) 815 { 816 this->error = CONF_NOT_A_NUMBER; 817 return 0; 818 } 819 } 820 if ((needs_unsigned) && (atoi(val)<0)) 821 { 822 this->error = CONF_NOT_UNSIGNED; 823 return 0; 824 } 825 return atoi(val); 826 } .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 766 of file modules.cpp. .PP References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). .PP .nf 767 { 768 char val[MAXBUF]; 769 char t[MAXBUF]; 770 char n[MAXBUF]; 771 strlcpy(t,tag.c_str(),MAXBUF); 772 strlcpy(n,name.c_str(),MAXBUF); 773 int res = Config->ReadConf(cache,t,n,index,val); 774 if (!res) 775 { 776 this->error = CONF_VALUE_NOT_FOUND; 777 return ''; 778 } 779 return val; 780 } .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 878 of file modules.cpp. .PP References readerror. .PP .nf 879 { 880 return this->readerror; 881 } .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 1540 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 1545 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 1541 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 1544 of file modules.h. .PP Referenced by ConfigReader(), and Verify(). .SH "Author" .PP Generated automatically by Doxygen for InspIRCd from the source code.