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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>

Inherits classbase.

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

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 641 of file modules.h.

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 566 of file modules.cpp.

References cache, CONF_FILE_NOT_FOUND, error, errorlog, and readerror. 

00567 {
00568         this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out);
00569         this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out);
00570         this->readerror = LoadConf(CONFIG_FILE,this->cache,this->errorlog);
00571         if (!this->readerror)
00572                 this->error = CONF_FILE_NOT_FOUND;
00573 }

ConfigReader::ConfigReader (  std::string  filename  ) 
 

Overloaded constructor.

This constructor initialises the ConfigReader class to read a user-specified config file

Definition at line 585 of file modules.cpp.

References cache, CONF_FILE_NOT_FOUND, error, errorlog, and readerror. 

00586 {
00587         this->cache = new std::stringstream(std::stringstream::in | std::stringstream::out);
00588         this->errorlog = new std::stringstream(std::stringstream::in | std::stringstream::out);
00589         this->readerror = LoadConf(filename.c_str(),this->cache,this->errorlog);
00590         if (!this->readerror)
00591                 this->error = CONF_FILE_NOT_FOUND;
00592 };

ConfigReader::~ConfigReader (   ) 
 

Default destructor.

This method destroys the ConfigReader class.

Definition at line 576 of file modules.cpp.

References cache, and errorlog. 

00577 {
00578         if (this->cache)
00579                 delete this->cache;
00580         if (this->errorlog)
00581                 delete this->errorlog;
00582 }

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 663 of file modules.cpp.

References errorlog, connection::fd, and userrec::nick. 

00664 {
00665         if (bail)
00666         {
00667                 printf("There were errors in your configuration:\n%s",errorlog->str().c_str());
00668                 exit(0);
00669         }
00670         else
00671         {
00672                 char dataline[1024];
00673                 if (user)
00674                 {
00675                         WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
00676                         while (!errorlog->eof())
00677                         {
00678                                 errorlog->getline(dataline,1024);
00679                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
00680                         }
00681                 }
00682                 else
00683                 {
00684                         WriteOpers("There were errors in the configuration file:",user->nick);
00685                         while (!errorlog->eof())
00686                         {
00687                                 errorlog->getline(dataline,1024);
00688                                 WriteOpers(dataline);
00689                         }
00690                 }
00691                 return;
00692         }
00693 }

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 696 of file modules.cpp.

References cache. 

00697 {
00698         return EnumConf(cache,tag.c_str());
00699 }

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 701 of file modules.cpp.

References cache. 

00702 {
00703         return EnumValues(cache, tag.c_str(), index);
00704 }

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 656 of file modules.cpp.

References error. 

00657 {
00658         long olderr = this->error;
00659         this->error = 0;
00660         return olderr;
00661 }

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 610 of file modules.cpp.

References cache, CONF_VALUE_NOT_FOUND, and error. 

00611 {
00612         char val[MAXBUF];
00613         char t[MAXBUF];
00614         char n[MAXBUF];
00615         strlcpy(t,tag.c_str(),MAXBUF);
00616         strlcpy(n,name.c_str(),MAXBUF);
00617         int res = ReadConf(cache,t,n,index,val);
00618         if (!res)
00619         {
00620                 this->error = CONF_VALUE_NOT_FOUND;
00621                 return false;
00622         }
00623         std::string s = val;
00624         return ((s == "yes") || (s == "YES") || (s == "true") || (s == "TRUE") || (s == "1"));
00625 }

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 627 of file modules.cpp.

References cache, CONF_NOT_A_NUMBER, CONF_NOT_UNSIGNED, CONF_VALUE_NOT_FOUND, and error. 

00628 {
00629         char val[MAXBUF];
00630         char t[MAXBUF];
00631         char n[MAXBUF];
00632         strlcpy(t,tag.c_str(),MAXBUF);
00633         strlcpy(n,name.c_str(),MAXBUF);
00634         int res = ReadConf(cache,t,n,index,val);
00635         if (!res)
00636         {
00637                 this->error = CONF_VALUE_NOT_FOUND;
00638                 return 0;
00639         }
00640         for (int i = 0; i < strlen(val); i++)
00641         {
00642                 if (!isdigit(val[i]))
00643                 {
00644                         this->error = CONF_NOT_A_NUMBER;
00645                         return 0;
00646                 }
00647         }
00648         if ((needs_unsigned) && (atoi(val)<0))
00649         {
00650                 this->error = CONF_NOT_UNSIGNED;
00651                 return 0;
00652         }
00653         return atoi(val);
00654 }

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 594 of file modules.cpp.

References cache, CONF_VALUE_NOT_FOUND, and error. 

00595 {
00596         char val[MAXBUF];
00597         char t[MAXBUF];
00598         char n[MAXBUF];
00599         strlcpy(t,tag.c_str(),MAXBUF);
00600         strlcpy(n,name.c_str(),MAXBUF);
00601         int res = ReadConf(cache,t,n,index,val);
00602         if (!res)
00603         {
00604                 this->error = CONF_VALUE_NOT_FOUND;
00605                 return "";
00606         }
00607         return std::string(val);
00608 }

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 706 of file modules.cpp.

References readerror. 

00707 {
00708         return this->readerror;
00709 }

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 649 of file modules.h.

Referenced by ConfigReader(), Enumerate(), EnumerateValues(), ReadFlag(), ReadInteger(), ReadValue(), and ~ConfigReader().

long ConfigReader::error [protected]
 

Definition at line 654 of file modules.h.

Referenced by ConfigReader(), GetError(), ReadFlag(), ReadInteger(), and ReadValue().

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

Definition at line 650 of file modules.h.

Referenced by ConfigReader(), DumpErrors(), and ~ConfigReader().

bool ConfigReader::readerror [protected]
 

Used to store errors.

Definition at line 653 of file modules.h.

Referenced by ConfigReader(), and Verify().

The documentation for this class was generated from the following files:
Generated on Fri Mar 25 03:49:31 2005 for InspIRCd by doxygen 1.3.3