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Change Util::Config to be able to return arrays on request.

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This commit is contained in:
Thulinma 2012-08-28 11:01:59 +02:00
parent c6e2f6bdd3
commit 3ec56cf675
3 changed files with 31 additions and 20 deletions
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45
lib/config.cpp
View file

@ -28,30 +28,37 @@ bool Util::Config::is_active = false;
Util::Config::Config(std::string cmd, std::string version){
vals.null();
long_count = 0;
vals["cmd"]["current"] = cmd;
vals["cmd"]["value"].append(cmd);
vals["version"]["long"] = "version";
vals["version"]["short"] = "v";
vals["version"]["help"] = "Display library and application version, then exit.";
vals["help"]["long"] = "help";
vals["help"]["short"] = "h";
vals["help"]["help"] = "Display usage and version information, then exit.";
vals["version"]["current"] = version;
vals["version"]["value"].append((std::string)PACKAGE_VERSION);
vals["version"]["value"].append(version);
}
/// Adds an option to the configuration parser.
/// The option needs an unique name (doubles will overwrite the previous) and can contain the following in the option itself:
///\code
/// {
/// "short":"o", //The short option letter
/// "long":"onName", //The long option
/// "short_off":"n", //The short option-off letter
/// "long_off":"offName", //The long option-off
/// "arg":"integer", //The type of argument, if required.
/// "default":1234, //The default value for this option if it is not given on the commandline.
/// "value":[], //The default value(s) for this option if it is not given on the commandline.
/// "arg_num":1, //The count this value has on the commandline, after all the options have been processed.
/// "help":"Blahblahblah" //The helptext for this option.
/// }
///\endcode
void Util::Config::addOption(std::string optname, JSON::Value option){
vals[optname] = option;
if (!vals[optname].isMember("value") && vals[optname].isMember("default")){
vals[optname]["value"].append(vals[optname]["default"]);
vals[optname].removeMember("default");
}
long_count = 0;
for (JSON::ObjIter it = vals.ObjBegin(); it != vals.ObjEnd(); it++){
if (it->second.isMember("long")){long_count++;}
@ -80,7 +87,7 @@ void Util::Config::printHelp(std::ostream & output){
}
output << "Usage: " << getString("cmd") << " [options]";
for (std::map<long long int, std::string>::iterator i = args.begin(); i != args.end(); i++){
if (vals[i->second].isMember("default")){
if (vals[i->second].isMember("value") && vals[i->second]["value"].size()){
output << " [" << i->second << "]";
}else{
output << " " << i->second;
@ -163,7 +170,7 @@ void Util::Config::parseArgs(int argc, char ** argv){
if (it->second.isMember("arg")){longOpts[long_i].has_arg = 1;}
long_i++;
}
if (it->second.isMember("arg_num") && !it->second.isMember("default")){
if (it->second.isMember("arg_num") && !(it->second.isMember("value") && it->second["value"].size())){
if (it->second["arg_num"].asInt() > arg_count){
arg_count = it->second["arg_num"].asInt();
}
@ -183,14 +190,14 @@ void Util::Config::parseArgs(int argc, char ** argv){
for (JSON::ObjIter it = vals.ObjBegin(); it != vals.ObjEnd(); it++){
if (it->second.isMember("short") && it->second["short"].asString()[0] == opt){
if (it->second.isMember("arg")){
it->second["current"] = (std::string)optarg;
it->second["value"].append((std::string)optarg);
}else{
it->second["current"] = 1;
it->second["value"].append((long long int)1);
}
break;
}
if (it->second.isMember("short_off") && it->second["short_off"].asString()[0] == opt){
it->second["current"] = 0;
it->second["value"].append((long long int)0);
}
}
break;
@ -201,7 +208,7 @@ void Util::Config::parseArgs(int argc, char ** argv){
while (optind < argc){//parse all remaining options, ignoring anything unexpected.
for (JSON::ObjIter it = vals.ObjBegin(); it != vals.ObjEnd(); it++){
if (it->second.isMember("arg_num") && it->second["arg_num"].asInt() == long_i){
it->second["current"] = (std::string)argv[optind];
it->second["value"].append((std::string)argv[optind]);
optind++;
long_i++;
break;
@ -217,15 +224,19 @@ void Util::Config::parseArgs(int argc, char ** argv){
/// Returns a reference to the current value of an option or default if none was set.
/// If the option does not exist, this exits the application with a return code of 37.
JSON::Value & Util::Config::getOption(std::string optname){
JSON::Value & Util::Config::getOption(std::string optname, bool asArray){
if (!vals.isMember(optname)){
std::cout << "Fatal error: a non-existent option '" << optname << "' was accessed." << std::endl;
exit(37);
}
if (vals[optname].isMember("current")){
return vals[optname]["current"];
if (!vals[optname].isMember("value") || !vals[optname]["value"].isArray()){
vals[optname]["value"].append(JSON::Value());
}
if (asArray){
return vals[optname]["value"];
}else{
return vals[optname]["default"];
int n = vals[optname]["value"].size();
return vals[optname]["value"][n-1];
}
}
@ -292,11 +303,11 @@ void Util::Config::signal_handler(int signum){
/// Adds the default connector options to this Util::Config object.
void Util::Config::addConnectorOptions(int port){
JSON::Value stored_port = JSON::fromString("{\"long\":\"port\", \"short\":\"p\", \"arg\":\"integer\", \"help\":\"TCP port to listen on.\"}");
stored_port["default"] = port;
stored_port["value"].append((long long int)port);
addOption("listen_port", stored_port);
addOption("listen_interface", JSON::fromString("{\"long\":\"interface\", \"default\":\"0.0.0.0\", \"short\":\"i\", \"arg\":\"string\", \"help\":\"Interface address to listen on, or 0.0.0.0 for all available interfaces.\"}"));
addOption("username", JSON::fromString("{\"long\":\"username\", \"default\":\"root\", \"short\":\"u\", \"arg\":\"string\", \"help\":\"Username to drop privileges to, or root to not drop provileges.\"}"));
addOption("daemonize", JSON::fromString("{\"long\":\"daemon\", \"short\":\"d\", \"default\":1, \"long_off\":\"nodaemon\", \"short_off\":\"n\", \"help\":\"Whether or not to daemonize the process after starting.\"}"));
addOption("listen_interface", JSON::fromString("{\"long\":\"interface\", \"value\":[\"0.0.0.0\"], \"short\":\"i\", \"arg\":\"string\", \"help\":\"Interface address to listen on, or 0.0.0.0 for all available interfaces.\"}"));
addOption("username", JSON::fromString("{\"long\":\"username\", \"value\":[\"root\"], \"short\":\"u\", \"arg\":\"string\", \"help\":\"Username to drop privileges to, or root to not drop provileges.\"}"));
addOption("daemonize", JSON::fromString("{\"long\":\"daemon\", \"short\":\"d\", \"value\":[1], \"long_off\":\"nodaemon\", \"short_off\":\"n\", \"help\":\"Whether or not to daemonize the process after starting.\"}"));
}//addConnectorOptions
/// Sets the current process' running user

2
lib/config.h
View file

@ -22,7 +22,7 @@ namespace Util{
void addOption(std::string optname, JSON::Value option);
void printHelp(std::ostream & output);
void parseArgs(int argc, char ** argv);
JSON::Value & getOption(std::string optname);
JSON::Value & getOption(std::string optname, bool asArray = false);
std::string getString(std::string optname);
long long int getInteger(std::string optname);
bool getBool(std::string optname);

2
lib/socket.cpp
View file

@ -577,7 +577,7 @@ int Socket::Server::getSocket(){return sock;}
/// converting all letters to lowercase.
/// If a '?' character is found, everything following that character is deleted.
Socket::Connection Socket::getStream(std::string streamname){
//strip anything that isn't numbers, digits or underscores
//strip anything that isn't a number, alpha or underscore
for (std::string::iterator i=streamname.end()-1; i>=streamname.begin(); --i){
if (*i == '?'){streamname.erase(i, streamname.end()); break;}
if (!isalpha(*i) && !isdigit(*i) && *i != '_'){