
/** 
 * @file llfloatertos.cpp
 * @brief Terms of Service Agreement dialog
 *
 * $LicenseInfo:firstyear=2003&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, 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 "llfloatertos.h"

// viewer includes
#include "llviewerstats.h"
#include "llviewerwindow.h"

// linden library includes
#include "llbutton.h"
#include "llevents.h"
#include "llnotificationsutil.h"
#include "llradiogroup.h"
#include "lltextbox.h"
#include "llui.h"
#include "lluictrlfactory.h"
#include "llfilesystem.h"
#include "message.h"
#include "llstartup.h"              // login_alert_done
#include "llviewernetwork.h"        // FIX FIRE 3143 SJ
#include "llcorehttputil.h"
#include "llfloaterreg.h"
LLFloaterTOS::LLFloaterTOS(const LLSD& data)
:	LLModalDialog( data["message"].asString() ),
	mMessage(data["message"].asString()),
	mLoadingScreenLoaded(false),
	mSiteAlive(false),
	mRealNavigateBegun(false),
	mReplyPumpName(data["reply_pump"].asString())
{
}

BOOL LLFloaterTOS::postBuild()
{	
	childSetAction("Continue", onContinue, this);
	childSetAction("Cancel", onCancel, this);
	childSetCommitCallback("agree_chk", updateAgree, this);
	
	if (hasChild("tos_text"))
	{
		// this displays the critical message
		LLUICtrl *tos_text = getChild<LLUICtrl>("tos_text");
		tos_text->setEnabled( FALSE );
		tos_text->setFocus(TRUE);
		tos_text->setValue(LLSD(mMessage));

		return TRUE;
	}

	// disable Agree to TOS radio button until the page has fully loaded
	updateAgreeEnabled(false);

	// hide the SL text widget if we're displaying TOS with using a browser widget.
	LLUICtrl *editor = getChild<LLUICtrl>("tos_text");
	editor->setVisible( FALSE );

	LLMediaCtrl* web_browser = getChild<LLMediaCtrl>("tos_html");
// <FS:CR> FIRE-8063 - Aurora and OpenSim TOS
	bool use_web_browser = false;
#ifdef OPENSIM
	if (LLGridManager::getInstance()->isInOpenSim())
	{
		//Check to see if the message is a link to display
		std::string token = "http://";
		std::string::size_type iIndex = mMessage.rfind(token);
		//IF it has http:// in it, we use the web browser
		if(iIndex != std::string::npos && mMessage.length() >= 2)
		{
			// it exists
			use_web_browser = true;
		}
	}
	else
#endif // OPENSIM
	{
		use_web_browser = true;
	}

	//if ( web_browser )
	if (web_browser && use_web_browser)
// </FS:CR>
	{
// if we are forced to send users to an external site in their system browser
// (e.g.) Linux users because of lack of media support for HTML ToS page
// remove exisiting UI and replace with a link to external page where users can accept ToS
#ifdef EXTERNAL_TOS
		LLTextBox* header = getChild<LLTextBox>("tos_heading");
		if (header)
			header->setVisible(false);

		LLTextBox* external_prompt = getChild<LLTextBox>("external_tos_required");
		if (external_prompt)
			external_prompt->setVisible(true);

		web_browser->setVisible(false);
#else
		web_browser->addObserver(this);

// <FS:CR> FIRE-8063 - Aurora and OpenSim TOS
		// Next line moved into logic below...
		//web_browser->navigateTo( getString( "loading_url" ) );
#ifdef OPENSIM
		if (LLGridManager::getInstance()->isInOpenSim())
		{
			mRealNavigateBegun = true;
			updateAgreeEnabled(true);
			web_browser->navigateTo(mMessage);
		}
		else
#endif // OPENSIM
		{
			// Don't use the start_url parameter for this browser instance -- it may finish loading before we get to add our observer.
			// Store the URL separately and navigate here instead.
			web_browser->navigateTo( getString( "loading_url" ) );
			LLPluginClassMedia* media_plugin = web_browser->getMediaPlugin();
			if (media_plugin)
			{
				// All links from tos_html should be opened in external browser
				media_plugin->setOverrideClickTarget("_external");
			}
		}
#endif
	}
#ifdef OPENSIM
	else if (LLGridManager::getInstance()->isInOpenSim())
	{
		std::string showTos = "data:text/html,%3Chtml%3E%3Chead%3E"
							  "%3Cstyle%3E%0A"
							  "body%20%7B%0A"
							  "background-color%3Argb%2831%2C%2031%2C%2031%29%3B%0A"
							  "margin%3A5px%2020px%205px%2030px%3B%0A"
							  "padding%3A0%3B%0A%7D%0A"
							  "pre%20%7B%0Afont-size%3A12px%3B%0A"
							  "font-family%3A%22Deja%20Vu%20Sans%22%2C%20Helvetica%2C%20Arial%2C%20sans-serif%3B%0A"
							  "color%3A%23fff%3B%0A%7D%0A"
							  "%3C/style%3E"
			                  "%3C/head%3E%3Cbody%3E%3Cpre%3E" + mMessage + "%3C/pre%3E%3C/body%3E%3C/html%3E";

		mRealNavigateBegun = true;
		updateAgreeEnabled(true);
		web_browser->navigateTo(showTos);
	}
#endif // OPENSIM
// </FS:CR>

	return TRUE;
}

void LLFloaterTOS::setSiteIsAlive( bool alive )
{
// if we are forced to send users to an external site in their system browser
// (e.g.) Linux users because of lack of media support for HTML ToS page
// force the regular HTML UI to deactivate so alternative is rendered instead.
#ifdef EXTERNAL_TOS
	mSiteAlive = false;
#else

	mSiteAlive = alive;
	
	// only do this for TOS pages
	if (hasChild("tos_html"))
	{
		// if the contents of the site was retrieved
		if ( alive )
		{
			// navigate to the "real" page 
			if(!mRealNavigateBegun && mSiteAlive)
			{
				LLMediaCtrl* web_browser = getChild<LLMediaCtrl>("tos_html");
				if(web_browser)
				{
					mRealNavigateBegun = true;
					web_browser->navigateTo( getString( "real_url" ) );
				}
			}
		}
		else
		{
			LL_INFOS("TOS") << "ToS page: ToS page unavailable!" << LL_ENDL;
			// normally this is set when navigation to TOS page navigation completes (so you can't accept before TOS loads)
			// but if the page is unavailable, we need to do this now
			updateAgreeEnabled(true);
			LLTextBox* tos_list = getChild<LLTextBox>("agree_list");
			tos_list->setEnabled(true);
		}
	}
#endif
}

LLFloaterTOS::~LLFloaterTOS()
{
}

// virtual
void LLFloaterTOS::draw()
{
	// draw children
	LLModalDialog::draw();
}


// update status of "Agree" checkbox and text
void LLFloaterTOS::updateAgreeEnabled(bool enabled)
{
	LLCheckBoxCtrl* tos_agreement_agree_cb = getChild<LLCheckBoxCtrl>("agree_chk");
	tos_agreement_agree_cb->setEnabled(enabled);

	LLTextBox* tos_agreement_agree_text = getChild<LLTextBox>("agree_list");
	tos_agreement_agree_text->setEnabled(enabled);
}

// static
void LLFloaterTOS::updateAgree(LLUICtrl*, void* userdata )
{
	LLFloaterTOS* self = (LLFloaterTOS*) userdata;
	bool agree = self->getChild<LLUICtrl>("agree_chk")->getValue().asBoolean(); 
	self->getChildView("Continue")->setEnabled(agree);
}

// static
void LLFloaterTOS::onContinue( void* userdata )
{
	LLFloaterTOS* self = (LLFloaterTOS*) userdata;
	LL_INFOS("TOS") << "User agrees with TOS." << LL_ENDL;

	if(self->mReplyPumpName != "")
	{
		LLEventPumps::instance().obtain(self->mReplyPumpName).post(LLSD(true));
	}

	self->closeFloater(); // destroys this object
}

// static
void LLFloaterTOS::onCancel( void* userdata )
{
	LLSD args;
	LLFloaterTOS* self = (LLFloaterTOS*) userdata;
	LL_INFOS("TOS") << "User disagrees with TOS." << LL_ENDL;
	LLNotificationsUtil::add("MustAgreeToLogIn", args, LLSD(), login_alert_done);

	if(self->mReplyPumpName != "")
	{
		LLEventPumps::instance().obtain(self->mReplyPumpName).post(LLSD(false));
	}

	// reset state for next time we come to TOS
	self->mLoadingScreenLoaded = false;
	self->mSiteAlive = false;
	self->mRealNavigateBegun = false;
	
	// destroys this object
	self->closeFloater(); 
}

//virtual 
void LLFloaterTOS::handleMediaEvent(LLPluginClassMedia* /*self*/, EMediaEvent event)
{
	if(event == MEDIA_EVENT_NAVIGATE_COMPLETE)
	{
		if(!mLoadingScreenLoaded)
		{
			mLoadingScreenLoaded = true;
            std::string url(getString("real_url"));

            LLHandle<LLFloater> handle = getHandle();

            LLCoros::instance().launch("LLFloaterTOS::testSiteIsAliveCoro",
                boost::bind(&LLFloaterTOS::testSiteIsAliveCoro, handle, url));
		}
		else if(mRealNavigateBegun)
		{
			LL_INFOS("TOS") << "TOS: NAVIGATE COMPLETE" << LL_ENDL;
			// enable Agree to TOS check box now that page has loaded
			updateAgreeEnabled(true);
			LLTextBox* tos_list = getChild<LLTextBox>("agree_list");
			tos_list->setEnabled(true);
		}
	}
}

void LLFloaterTOS::testSiteIsAliveCoro(LLHandle<LLFloater> handle, std::string url)
{
    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);
    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t
        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("genericPostCoro", httpPolicy));
    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);
    LLCore::HttpOptions::ptr_t httpOpts = LLCore::HttpOptions::ptr_t(new LLCore::HttpOptions);

    httpOpts->setWantHeaders(true);
	httpOpts->setHeadersOnly(true);

    LL_INFOS("testSiteIsAliveCoro") << "Generic POST for " << url << LL_ENDL;

    LLSD result = httpAdapter->getAndSuspend(httpRequest, url);

    LLSD httpResults = result[LLCoreHttpUtil::HttpCoroutineAdapter::HTTP_RESULTS];
    LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);

    if (handle.isDead())
    {
        LL_WARNS("testSiteIsAliveCoro") << "Dialog canceled before response." << LL_ENDL;
        return;
    }

    LLFloaterTOS *that = dynamic_cast<LLFloaterTOS *>(handle.get());
    
    if (that)
        that->setSiteIsAlive(static_cast<bool>(status)); 
    else
    {
        LL_WARNS("testSiteIsAliveCoro") << "Handle was not a TOS floater." << LL_ENDL;
    }
}


