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/**
* @file LLSyntaxId
* @author Ima Mechanique
* @brief Handles downloading, saving, and checking of LSL keyword/syntax files
* for each region.
*
* $LicenseInfo:firstyear=2013&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2013, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llhttpclient.h"
#include "llagent.h"
#include "llappviewer.h"
#include "llcurl.h"
#include "llenvmanager.h"
#include "llsdserialize.h"
#include "llsyntaxid.h"
//-----------------------------------------------------------------------------
// fetchKeywordsFileResponder
//-----------------------------------------------------------------------------
class fetchKeywordsFileResponder : public LLCurl::Responder
{
public:
std::string mFileSpec;
fetchKeywordsFileResponder(std::string filespec)
{
mFileSpec = filespec;
}
void errorWithContent(U32 status,
const std::string& reason,
const LLSD& content)
{
LL_WARNS("")
<< "fetchKeywordsFileResponder error [status:"
<< status
<< "]: "
<< content
<< LL_ENDL;
}
void result(const LLSD& content_ref)
{
//LLSyntaxIdLSL::setKeywordsXml(content_ref);
std::stringstream str;
LLSDSerialize::toPrettyXML(content_ref, str);
LL_WARNS("")
<< "fetchKeywordsFileResponder result:" << str.str()
<< "filename: '" << mFileSpec << "'"
<< LL_ENDL;
// TODO save the damn str to disc
//llofstream file(mFileSpec, std::ios_base::out);
//file.write(str.str(), str.str().size());
//file.close();
}
};
//-----------------------------------------------------------------------------
// LLSyntaxIdLSL
//-----------------------------------------------------------------------------
/**
* @brief LLSyntaxIdLSL constructor
*/
LLSyntaxIdLSL::LLSyntaxIdLSL() :
// Move these to signature?
mFileNameDefault("keywords_lsl_default.xml"),
mSimulatorFeature("LSLSyntaxId"),
mCapabilityName("LSLSyntax"),
mFilePath(LL_PATH_APP_SETTINGS)
{
mCurrentSyntaxId = LLUUID();
mFileNameCurrent = mFileNameDefault;
}
std::string LLSyntaxIdLSL::buildFileName(LLUUID& SyntaxId)
{
std::string filename = "keywords_lsl_" + SyntaxId.asString() + "_" + gLastVersionChannel + ".llsd.xml";
return filename;
}
//-----------------------------------------------------------------------------
// checkSyntaxIdChange()
//-----------------------------------------------------------------------------
bool LLSyntaxIdLSL::checkSyntaxIdChanged()
{
bool changed = false;
LLViewerRegion* region = gAgent.getRegion();
if (region)
{
/*
LL_WARNS("LSLSyntax")
<< "REGION is '" << region->getName() << "'"
<< LL_ENDL;
*/
if (!region->capabilitiesReceived())
{ // Shouldn't be possible, but experience shows that it's needed
// region->setCapabilitiesReceivedCallback(boost::bind(&LLSyntaxIdLSL::checkSyntaxIdChange, this));
LL_WARNS("LSLSyntax")
<< "region '" << region->getName()
<< "' has not received capabilities yet! Setting a callback for when they arrive."
<< LL_ENDL;
}
else
{
// get and check the hash
LLSD simFeatures;
region->getSimulatorFeatures(simFeatures);
if (simFeatures.has("LSLSyntaxId"))
{
LLUUID SyntaxId = simFeatures["LSLSyntaxId"].asUUID();
if (mCurrentSyntaxId != SyntaxId)
{
// set the properties for the fetcher to use
mFileNameCurrent = buildFileName(SyntaxId);
mFilePath = LL_PATH_CACHE;
mCurrentSyntaxId = SyntaxId;
LL_WARNS("LSLSyntax")
<< "Region changed to '" << region->getName()
<< "' it has LSLSyntaxId capability, and the new hash is '"
<< SyntaxId << "'"
<< LL_ENDL;
changed = true;
}
else
{
LL_WARNS("LSLSyntax")
<< "Region changed to '" << region->getName()
<< "' it has the same LSLSyntaxId! Leaving hash as '"
<< mCurrentSyntaxId << "'"
<< LL_ENDL;
}
}
else
{
// Set the hash to NULL_KEY to indicate use of default keywords file
if ( mCurrentSyntaxId.isNull() )
{
LL_WARNS("LSLSyntax")
<< "Region changed to '" << region->getName()
<< " it does not have LSLSyntaxId capability, remaining with default keywords file!"
<< LL_ENDL;
}
else
{
mCurrentSyntaxId = LLUUID();
mFileNameCurrent = mFileNameDefault;
mFilePath = LL_PATH_APP_SETTINGS;
LL_WARNS("LSLSyntax")
<< "Region changed to '" << region->getName()
<< " it does not have LSLSyntaxId capability, using default keywords file!"
<< LL_ENDL;
changed = true;
}
}
}
}
return changed;
}
//-----------------------------------------------------------------------------
// fetchKeywordsFile
//-----------------------------------------------------------------------------
bool LLSyntaxIdLSL::fetchKeywordsFile()
{
LLViewerRegion* region = gAgent.getRegion();
bool fetched = false;
std::string cap_url = region->getCapability(mCapabilityName);
if ( !cap_url.empty() )
{
LLHTTPClient::get(cap_url, new fetchKeywordsFileResponder(mFullFileSpec));
}
return fetched;
}
void LLSyntaxIdLSL::initialise()
{
if (checkSyntaxIdChanged())
{
LL_WARNS("LSLSyntax")
<< "Change to syntax, setting up new file."
<< LL_ENDL;
setFileNameNew(gDirUtilp->getExpandedFilename(
mFilePath,
mFileNameCurrent
));
if ( !mCurrentSyntaxId.isNull() )
{
bool success = false;
if ( !gDirUtilp->fileExists(mFullFileSpec) )
{ // Does not exist, so fetch it from the capability
success = fetchKeywordsFile();
}
}
// TODO add a signal here to tell the editor the hash has changed?
}
else
{
LL_WARNS("LSLSyntax")
<< "Apparently there is no change to Syntax!"
<< LL_ENDL;
}
//LLEnvManagerNew::instance().setRegionChangeCallback(boost::bind(&LLSyntaxIdLSL::checkSyntaxIdChange(), this));
}
//-----------------------------------------------------------------------------
// openKeywordsFile
//-----------------------------------------------------------------------------
void openKeywordsFile()
{
;
}
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