llmessageconfig.cpp

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#include "linden_common.h"

#include "llmessageconfig.h"
#include "llfile.h"
#include "lllivefile.h"
#include "llsd.h"
#include "llsdutil.h"
#include "llsdserialize.h"
#include "message.h"

static const char messageConfigFileName[] = "message.xml";
static const F32 messageConfigRefreshRate = 5.0; // seconds

static std::string sServerName = "";
static std::string sConfigDir = "";

static std::string sServerDefault;
static LLSD sMessages;


class LLMessageConfigFile : public LLLiveFile
{
public:
        LLMessageConfigFile()
        : LLLiveFile(filename(), messageConfigRefreshRate)
            { }

    static std::string filename();

    LLSD mMessages;
        std::string mServerDefault;
        
        static LLMessageConfigFile& instance();
                // return the singleton configuration file

        /* virtual */ void loadFile();
        void loadServerDefaults(const LLSD& data);
        void loadMessages(const LLSD& data);
        void loadCapBans(const LLSD& blacklist);
        void loadMessageBans(const LLSD& blacklist);
        bool isCapBanned(const std::string& cap_name) const;

public:
        LLSD mCapBans;
};

std::string LLMessageConfigFile::filename()
{
    std::ostringstream ostr;
        ostr << sConfigDir//gAppSimp->getOption("configdir").asString()
                << "/" << messageConfigFileName;
        return ostr.str();
}

LLMessageConfigFile& LLMessageConfigFile::instance()
{
        static LLMessageConfigFile the_file;
        the_file.checkAndReload();
        return the_file;
}

// virtual
void LLMessageConfigFile::loadFile()
{
        LLSD data;
    {
        llifstream file(filename().c_str());
        
        if (file.is_open())
        {
                        llinfos << "Loading message.xml file at " << filename() << llendl;
            LLSDSerialize::fromXML(data, file);
        }

        if (data.isUndefined())
        {
            llinfos << "LLMessageConfigFile::loadFile: file missing,"
                                " ill-formed, or simply undefined; not changing the"
                                " file" << llendl;
            return;
        }
    }
        loadServerDefaults(data);
        loadMessages(data);
        loadCapBans(data);
        loadMessageBans(data);
}

void LLMessageConfigFile::loadServerDefaults(const LLSD& data)
{
        mServerDefault = data["serverDefaults"][sServerName].asString();
}

void LLMessageConfigFile::loadMessages(const LLSD& data)
{
        mMessages = data["messages"];

#ifdef DEBUG
        std::ostringstream out;
        LLSDXMLFormatter *formatter = new LLSDXMLFormatter;
        formatter->format(mMessages, out);
        llinfos << "loading ... " << out.str()
                        << " LLMessageConfigFile::loadMessages loaded "
                        << mMessages.size() << " messages" << llendl;
#endif
}

void LLMessageConfigFile::loadCapBans(const LLSD& data)
{
    LLSD bans = data["capBans"];
    if (!bans.isMap())
    {
        llinfos << "LLMessageConfigFile::loadCapBans: missing capBans section"
            << llendl;
        return;
    }
    
        mCapBans = bans;
    
    llinfos << "LLMessageConfigFile::loadCapBans: "
        << bans.size() << " ban tests" << llendl;
}

void LLMessageConfigFile::loadMessageBans(const LLSD& data)
{
    LLSD bans = data["messageBans"];
    if (!bans.isMap())
    {
        llinfos << "LLMessageConfigFile::loadMessageBans: missing messageBans section"
            << llendl;
        return;
    }
    
        gMessageSystem->setMessageBans(bans["trusted"], bans["untrusted"]);
}

bool LLMessageConfigFile::isCapBanned(const std::string& cap_name) const
{
        lldebugs << "mCapBans is " << LLSDNotationStreamer(mCapBans) << llendl;
    return mCapBans[cap_name];
}

//---------------------------------------------------------------
// LLMessageConfig
//---------------------------------------------------------------

//static
void LLMessageConfig::initClass(const std::string& server_name,
                                                                const std::string& config_dir)
{
        sServerName = server_name;
        sConfigDir = config_dir;
        (void) LLMessageConfigFile::instance();
        llinfos << "LLMessageConfig::initClass config file "
                        << config_dir << "/" << messageConfigFileName << llendl;
}

//static
void LLMessageConfig::useConfig(const LLSD& config)
{
        LLMessageConfigFile &the_file = LLMessageConfigFile::instance();
        the_file.loadServerDefaults(config);
        the_file.loadMessages(config);
        the_file.loadCapBans(config);
        the_file.loadMessageBans(config);

}

//static
LLMessageConfig::Flavor LLMessageConfig::getServerDefaultFlavor()
{
        LLMessageConfigFile& file = LLMessageConfigFile::instance();
        if (file.mServerDefault == "llsd")
        {
                return LLSD_FLAVOR;
        }
        if (file.mServerDefault == "template")
        {
                return TEMPLATE_FLAVOR;
        }
        return NO_FLAVOR;
}

//static
LLMessageConfig::Flavor LLMessageConfig::getMessageFlavor(const std::string& msg_name)
{
        LLMessageConfigFile& file = LLMessageConfigFile::instance();
        LLSD config = file.mMessages[msg_name];
        if (config["flavor"].asString() == "llsd")
        {
                return LLSD_FLAVOR;
        }
        if (config["flavor"].asString() == "template")
        {
                return TEMPLATE_FLAVOR;
        }
        return NO_FLAVOR;
}

//static
LLMessageConfig::SenderTrust LLMessageConfig::getSenderTrustedness(
        const std::string& msg_name)
{
        LLMessageConfigFile& file = LLMessageConfigFile::instance();
        LLSD config = file.mMessages[msg_name];
        if (config.has("trusted-sender"))
        {
                return config["trusted-sender"].asBoolean() ? TRUSTED : UNTRUSTED;
        }
        return NOT_SET;
}

//static
bool LLMessageConfig::isValidMessage(const std::string& msg_name)
{
        if (sServerName.empty())
        {
                llerrs << "LLMessageConfig::initClass() not called" << llendl;
        }
        LLMessageConfigFile& file = LLMessageConfigFile::instance();
        return file.mMessages.has(msg_name);
}

bool LLMessageConfig::isCapBanned(const std::string& cap_name)
{
        return LLMessageConfigFile::instance().isCapBanned(cap_name);
}

// return the web-service path to use for a given
// message. This entry *should* match the entry
// in simulator.xml!
LLSD LLMessageConfig::getConfigForMessage(const std::string& msg_name)
{
        if (sServerName.empty())
        {
                llerrs << "LLMessageConfig::isMessageTrusted(name) before"
                                << " LLMessageConfig::initClass()" << llendl;
        }
        LLMessageConfigFile& file = LLMessageConfigFile::instance();
        // LLSD for the CamelCase message name
        LLSD config = file.mMessages[msg_name];
        return config;
}

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