ConfigReader Class Reference

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. More...

#include <modules.h>

Inheritance diagram for ConfigReader:

[legend]Collaboration diagram for ConfigReader:

[legend]List of all members.

Public Member Functions
	ConfigReader ()
	Default constructor.
	ConfigReader (std::string filename)
	Overloaded constructor.
	~ConfigReader ()
	Default destructor.
std::string	ReadValue (std::string tag, std::string name, int index)
	Retrieves a value from the config file.
bool	ReadFlag (std::string tag, std::string name, int index)
	Retrieves a boolean value from the config file.
long	ReadInteger (std::string tag, std::string name, int index, bool needs_unsigned)
	Retrieves an integer value from the config file.
long	GetError ()
	Returns the last error to occur.
int	Enumerate (std::string tag)
	Counts the number of times a given tag appears in the config file.
bool	Verify ()
	Returns true if a config file is valid.
void	DumpErrors (bool bail, userrec *user)
	Dumps the list of errors in a config file to an output location.
int	EnumerateValues (std::string tag, int index)
	Returns the number of items within a tag.
Protected Attributes
std::stringstream *	cache
	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).
std::stringstream *	errorlog
bool	readerror
	Used to store errors.
long	error

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Detailed Description

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.

Definition at line 1550 of file modules.h.

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Constructor & Destructor Documentation

ConfigReader::ConfigReader (   )

Default constructor. This constructor initialises the ConfigReader class to read the inspircd.conf file as specified when running ./configure. Definition at line 735 of file modules.cpp. References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. { Config->ClearStack(); this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); this->readerror = Config->LoadConf(CONFIG_FILE,this->cache,this->errorlog); if (!this->readerror) this->error = CONF_FILE_NOT_FOUND; }

ConfigReader::ConfigReader (  std::string  filename  )

Overloaded constructor. This constructor initialises the ConfigReader class to read a user-specified config file Definition at line 755 of file modules.cpp. References cache, ServerConfig::ClearStack(), CONF_FILE_NOT_FOUND, error, errorlog, ServerConfig::LoadConf(), and readerror. { Config->ClearStack(); this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out); this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out); this->readerror = Config->LoadConf(filename.c_str(),this->cache,this->errorlog); if (!this->readerror) this->error = CONF_FILE_NOT_FOUND; };

ConfigReader::~ConfigReader (   )

Default destructor. This method destroys the ConfigReader class. Definition at line 746 of file modules.cpp. References cache, and errorlog. { if (this->cache) delete this->cache; if (this->errorlog) delete this->errorlog; }

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Member Function Documentation

void ConfigReader::DumpErrors (  bool  bail, userrec *  user )

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 834 of file modules.cpp. References errorlog, connection::fd, userrec::nick, WriteOpers(), and WriteServ(). { if (bail) { printf("There were errors in your configuration:\n%s",errorlog->str().c_str()); exit(0); } else { char dataline[1024]; if (user) { WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick); while (!errorlog->eof()) { errorlog->getline(dataline,1024); WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline); } } else { WriteOpers("There were errors in the configuration file:",user->nick); while (!errorlog->eof()) { errorlog->getline(dataline,1024); WriteOpers(dataline); } } return; } }

int ConfigReader::Enumerate (  std::string  tag  )

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 ConfigReader::ReadValue to loop through all copies of a multiple instance tag. Definition at line 867 of file modules.cpp. References cache, and ServerConfig::EnumConf(). { return Config->EnumConf(cache,tag.c_str()); }

int ConfigReader::EnumerateValues (  std::string  tag, int  index )

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 872 of file modules.cpp. References cache, and ServerConfig::EnumValues(). { return Config->EnumValues(cache, tag.c_str(), index); }

long ConfigReader::GetError (   )

Returns the last error to occur. Valid errors can be found by looking in modules.h. Any nonzero value indicates an error condition. A call to GetError() resets the error flag back to 0. Definition at line 827 of file modules.cpp. References error. { long olderr = this->error; this->error = 0; return olderr; }

bool ConfigReader::ReadFlag (  std::string  tag, std::string  name, int  index )

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 781 of file modules.cpp. References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). { char val[MAXBUF]; char t[MAXBUF]; char n[MAXBUF]; strlcpy(t,tag.c_str(),MAXBUF); strlcpy(n,name.c_str(),MAXBUF); int res = Config->ReadConf(cache,t,n,index,val); if (!res) { this->error = CONF_VALUE_NOT_FOUND; return false; } std::string s = val; return ((s == "yes") || (s == "YES") || (s == "true") || (s == "TRUE") || (s == "1")); }

long ConfigReader::ReadInteger (  std::string  tag, std::string  name, int  index, bool  needs_unsigned )

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 GetError() 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 GetError() will return CONF_NOT_UNSIGNED Definition at line 798 of file modules.cpp. References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). { char val[MAXBUF]; char t[MAXBUF]; char n[MAXBUF]; strlcpy(t,tag.c_str(),MAXBUF); strlcpy(n,name.c_str(),MAXBUF); int res = Config->ReadConf(cache,t,n,index,val); if (!res) { this->error = CONF_VALUE_NOT_FOUND; return 0; } for (unsigned int i = 0; i < strlen(val); i++) { if (!isdigit(val[i])) { this->error = CONF_NOT_A_NUMBER; return 0; } } if ((needs_unsigned) && (atoi(val)<0)) { this->error = CONF_NOT_UNSIGNED; return 0; } return atoi(val); }

std::string ConfigReader::ReadValue (  std::string  tag, std::string  name, int  index )

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 765 of file modules.cpp. References cache, CONF_VALUE_NOT_FOUND, error, and ServerConfig::ReadConf(). { char val[MAXBUF]; char t[MAXBUF]; char n[MAXBUF]; strlcpy(t,tag.c_str(),MAXBUF); strlcpy(n,name.c_str(),MAXBUF); int res = Config->ReadConf(cache,t,n,index,val); if (!res) { this->error = CONF_VALUE_NOT_FOUND; return ""; } return val; }

bool ConfigReader::Verify (   )

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 877 of file modules.cpp. References readerror. { return this->readerror; }

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Member Data Documentation

std::stringstream* ConfigReader::cache [protected]

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 1558 of file modules.h. Referenced by ConfigReader(), Enumerate(), EnumerateValues(), ReadFlag(), ReadInteger(), ReadValue(), and ~ConfigReader().

long ConfigReader::error [protected]

Definition at line 1563 of file modules.h. Referenced by ConfigReader(), GetError(), ReadFlag(), ReadInteger(), and ReadValue().

std::stringstream* ConfigReader::errorlog [protected]

Definition at line 1559 of file modules.h. Referenced by ConfigReader(), DumpErrors(), and ~ConfigReader().

bool ConfigReader::readerror [protected]

Used to store errors. Definition at line 1562 of file modules.h. Referenced by ConfigReader(), and Verify().

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The documentation for this class was generated from the following files:

• modules.h
• modules.cpp

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