/* Copyright (C) 2006,2007 Marc Maurer <uwog@uwog.net>
 * Copyright (C) 2008-2009 AbiSource Corporation B.V.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#ifdef _MSC_VER
#define strcasecmp stricmp
#else
#include <strings.h>
#endif
#ifndef WIN32
#include <unistd.h>
#endif
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include "xap_App.h"
#include "xap_Frame.h"
#include "ut_go_file.h"
#include "xap_DialogFactory.h"
#include "ut_debugmsg.h"
#include "ut_sleep.h"
#include "soa_soup.h"
#include "abicollab_types.h"
#include "AsyncWorker.h"
#include "ProgressiveSoapCall.h"
#include "RealmBuddy.h"
#include "ServiceBuddy.h"
#include "ServiceAccountHandler.h"
#include "ap_Dialog_GenericInput.h"
#include <account/xp/AccountEvent.h>
#include <core/account/xp/SessionEvent.h>
#include <core/session/xp/AbiCollabSessionManager.h>
#include "AbiCollabService_Export.h"
#include "pd_DocumentRDF.h"

namespace rpv1 = realm::protocolv1;

XAP_Dialog_Id ServiceAccountHandler::m_iDialogGenericInput = 0;
XAP_Dialog_Id ServiceAccountHandler::m_iDialogGenericProgress = 0;
AbiCollabSaveInterceptor ServiceAccountHandler::m_saveInterceptor = AbiCollabSaveInterceptor();

bool ServiceAccountHandler::askPassword(const std::string& email, std::string& password)
{
	UT_DEBUGMSG(("ServiceAccountHandler::askPassword()\n"));
	
	// ask for the service password
	XAP_DialogFactory* pFactory = static_cast<XAP_DialogFactory *>(XAP_App::getApp()->getDialogFactory());
	UT_return_val_if_fail(pFactory, false);
	AP_Dialog_GenericInput* pDialog = static_cast<AP_Dialog_GenericInput*>(
				pFactory->requestDialog(ServiceAccountHandler::getDialogGenericInputId())
			);
	
	// Run the dialog
	// TODO: make this translatable
	pDialog->setTitle("AbiCollab.net Collaboration Service"); // FIXME: don't hardcode this title to abicollab.net
	std::string msg = "Please enter your password for account '" + email + "'";
	pDialog->setQuestion(msg.c_str());
	pDialog->setLabel("Password:");
	pDialog->setPassword(true);
	pDialog->setMinLenght(1);
	pDialog->runModal(XAP_App::getApp()->getLastFocussedFrame());
	
	// get the results
	bool cancel = pDialog->getAnswer() == AP_Dialog_GenericInput::a_CANCEL;
	if (!cancel)
		password = pDialog->getInput().utf8_str();
	pFactory->releaseDialog(pDialog);
	
	// the user terminated the input
	return !cancel;
}

bool ServiceAccountHandler::askFilename(std::string& filename, bool firsttime)
{
	UT_DEBUGMSG(("ServiceAccountHandler::askFilename()\n"));
	XAP_Frame* pFrame = XAP_App::getApp()->getLastFocussedFrame();
	UT_return_val_if_fail(pFrame, false);
	
	// ask for the service password
	XAP_DialogFactory* pFactory = static_cast<XAP_DialogFactory *>(XAP_App::getApp()->getDialogFactory());
	UT_return_val_if_fail(pFactory, false);
	AP_Dialog_GenericInput* pDialog = static_cast<AP_Dialog_GenericInput*>(
				pFactory->requestDialog(ServiceAccountHandler::getDialogGenericInputId())
			);
	
	// Run the dialog
	// TODO: make this translatable
	pDialog->setTitle("AbiCollab.net Collaboration Service"); // FIXME: don't hardcode this title to abicollab.net
	std::string msg;
	if (firsttime) {
		msg = "Please specify a filename for the document.";
	} else {
		msg = "This filename already exists, please enter a new name.";
	}
	pDialog->setQuestion(msg.c_str());
	pDialog->setLabel("Filename:");
	pDialog->setPassword(false);
	pDialog->setMinLenght(1);
	pDialog->setInput(filename.c_str());
	pDialog->runModal(pFrame);
	
	// get the results
	bool cancel = pDialog->getAnswer() == AP_Dialog_GenericInput::a_CANCEL;
	if (!cancel)
	{
		filename = pDialog->getInput().utf8_str();
		ensureExt(filename, ".abw");
	}
	pFactory->releaseDialog(pDialog);
	
	// the user terminated the input
	return !cancel;
}

void ServiceAccountHandler::ensureExt(std::string& filename, const std::string& extension)
{
	// check if the filename ends in the desired extension, and if not, 
	// append the desired extension
	if (filename.size() <= extension.size())
	{
		filename += extension;
	}
	else
	{
		std::string ext = filename.substr(filename.size() - extension.size());
		if (ext != extension)
			filename += extension;
	}
}

ServiceAccountHandler::ServiceAccountHandler()
	: AccountHandler(),
	m_bOnline(false),
	  m_connections(),
	  m_iListenerID(0),
	  m_pExport(NULL)
{
	m_ssl_ca_file = XAP_App::getApp()->getAbiSuiteLibDir();
#if defined(WIN32)
	m_ssl_ca_file += "\\certs\\cacert.pem";
#else
	m_ssl_ca_file += "/certs/cacert.pem";
#endif
}

ServiceAccountHandler::~ServiceAccountHandler()
{
	disconnect();
}

UT_UTF8String ServiceAccountHandler::getDescription()
{
    return getProperty("email").c_str();
}

UT_UTF8String ServiceAccountHandler::getDisplayType()
{
	return "AbiCollab.net Collaboration Service";
}

UT_UTF8String ServiceAccountHandler::getStaticStorageType()
{
	return SERVICE_ACCOUNT_HANDLER_TYPE;
}

UT_UTF8String ServiceAccountHandler::getShareHint(PD_Document* pDoc)
{
	UT_return_val_if_fail(pDoc, "");

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, "");

	// There is no hint if this document is already uploaded to the service.
	if (pManager->isInSession(pDoc))
		return "";

	// TODO: we should really have a nice web url for this, but until we do,
	// we'll poke in the SOAP uri to find it.
	std::string server = getProperty("uri");
	string::size_type proto_pos = server.find("://", 0);
	if (proto_pos != string::npos)
	{
		string::size_type slash_pos = server.find("/", proto_pos + 3);
		if (slash_pos != string::npos)
			server = server.substr(0, slash_pos + 1);
	}
	return UT_UTF8String_sprintf("Your document will automatically be uploaded\nto %s", server.c_str());
}

XAP_Dialog_Id ServiceAccountHandler::getDialogGenericInputId()
{
	// register the generic input dialog if we haven't already done that
	// a bit hacky, but it works
	if (m_iDialogGenericInput == 0)
	{
		XAP_DialogFactory * pFactory = static_cast<XAP_DialogFactory *>(XAP_App::getApp()->getDialogFactory());
		m_iDialogGenericInput = pFactory->registerDialog(ap_Dialog_GenericInput_Constructor, XAP_DLGT_NON_PERSISTENT);
	}
	return m_iDialogGenericInput;
}

XAP_Dialog_Id ServiceAccountHandler::getDialogGenericProgressId()
{
	// register the generic progress dialog if we haven't already done that
	// a bit hacky, but it works
	if (m_iDialogGenericProgress == 0)
	{
		XAP_DialogFactory * pFactory = static_cast<XAP_DialogFactory *>(XAP_App::getApp()->getDialogFactory());
		m_iDialogGenericProgress = pFactory->registerDialog(ap_Dialog_GenericProgress_Constructor, XAP_DLGT_NON_PERSISTENT);
	}
	return m_iDialogGenericProgress;
}

ConnectResult ServiceAccountHandler::connect()
{
	UT_DEBUGMSG(("ServiceAccountHandler::connect()\n"));
	
	if (m_bOnline)
		return CONNECT_SUCCESS;
	
	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, CONNECT_INTERNAL_ERROR);	
	
	m_bOnline = true;

	// we are "connected" now, time to start sending out, and listening to messages (such as events)
	pManager->registerEventListener(this);
	// signal all listeners we are logged in
	AccountOnlineEvent event;
	// TODO: fill the event
	AbiCollabSessionManager::getManager()->signal(event);

	return CONNECT_SUCCESS;
}

bool ServiceAccountHandler::disconnect()
{
	UT_DEBUGMSG(("ServiceAccountHandler::disconnect()\n"));
	UT_return_val_if_fail(m_bOnline, false);
	
	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, false);	
	
	m_bOnline = false;

	// we are disconnected now, no need to receive events anymore
	pManager->unregisterEventListener(this);

	removeExporter();
	
	// signal all listeners we are logged out
	AccountOfflineEvent event;
	// TODO: fill the event
	AbiCollabSessionManager::getManager()->signal(event);
	
	return true;
}

void ServiceAccountHandler::removeExporter(void)
{
	if (m_pExport)
	{
		PD_Document * pDoc = m_pExport->getDocument();
		pDoc->removeListener(m_iListenerID);
		m_iListenerID = 0;
		DELETEP(m_pExport);
	}
}

bool ServiceAccountHandler::isOnline()
{
	return m_bOnline;
}

ConnectionPtr ServiceAccountHandler::getConnection(PD_Document* pDoc)
{
	UT_return_val_if_fail(pDoc, ConnectionPtr());
	for (std::vector<ConnectionPtr>::iterator it = m_connections.begin(); it != m_connections.end(); it++)
	{
		UT_continue_if_fail(*it);
		if ((*it)->getDocument() == pDoc)
			return *it;
	}
	return ConnectionPtr();
}

void ServiceAccountHandler::getBuddiesAsync()
{
	UT_DEBUGMSG(("ServiceAccountHandler::getBuddiesAsync()\n"));
	bool b = _getConnections(); // FIXME: we should probably make this async
	UT_return_if_fail(b);
}

BuddyPtr ServiceAccountHandler::constructBuddy(const PropertyMap& /*props*/)
{
	UT_DEBUGMSG(("ServiceAccountHandler::constructBuddy() - TODO: implement me\n"));
	UT_ASSERT_HARMLESS(UT_NOT_IMPLEMENTED);	
	return BuddyPtr();
}

BuddyPtr ServiceAccountHandler::constructBuddy(const std::string& descriptor, BuddyPtr pBuddy)
{
	UT_DEBUGMSG(("ServiceAccountHandler::constructBuddy()\n"));
	UT_return_val_if_fail(pBuddy, BuddyPtr());

	uint64_t descr_user_id;
	uint8_t descr_conn_id;
	std::string descr_domain;
	UT_return_val_if_fail(_splitDescriptor(descriptor, descr_user_id, descr_conn_id, descr_domain), BuddyPtr());
	UT_DEBUGMSG(("Constructing realm buddy - user_id: %llu, conn_id: %d, domain: %s\n", 
					descr_user_id, descr_conn_id, descr_domain.c_str()));

	// verify that the uri matches ours
	UT_return_val_if_fail(descr_domain == _getDomain(), BuddyPtr());

	// Search for, and return the requested buddy
	// NOTE: we can only 'construct' a buddy that we already know on the same connection as 
	// the given buddy. This because you can't just invent/guess/whatever a buddy descriptor
	// and communicate with him (even if the buddy descriptor actually exists)... 
	// the security mechanism would not allow that
	RealmBuddyPtr pSessionBuddy = boost::static_pointer_cast<RealmBuddy>(pBuddy);

	ConnectionPtr connection = pSessionBuddy->connection();
	UT_return_val_if_fail(connection, BuddyPtr());
	for (std::vector<RealmBuddyPtr>::iterator it = connection->getBuddies().begin(); it != connection->getBuddies().end(); it++)
	{
		RealmBuddyPtr pB = *it;
		UT_continue_if_fail(pB);
		if (pB->user_id() == descr_user_id && pB->realm_connection_id() == descr_conn_id)
			return pB;
	}

	UT_ASSERT_HARMLESS(UT_NOT_REACHED);
	return BuddyPtr();
}

bool ServiceAccountHandler::recognizeBuddyIdentifier(const std::string& identifier)
{
	uint64_t descr_user_id;
	uint8_t descr_conn_id;
	std::string descr_domain;
	if (!_splitDescriptor(identifier, descr_user_id, descr_conn_id, descr_domain))
		return false;
	if (descr_domain != _getDomain())
		return false;
	return true;
}

void ServiceAccountHandler::forceDisconnectBuddy(BuddyPtr pBuddy)
{
	UT_DEBUGMSG(("ServiceAccountHandler::forceDisconnectBuddy()\n"));
	UT_return_if_fail(pBuddy);

	// It makes no sense on this backend to disconnect from buddies
	// as far as I can see now.
}

bool ServiceAccountHandler::hasAccess(const std::vector<std::string>& /*vAcl*/, BuddyPtr pBuddy)
{
	UT_DEBUGMSG(("ServiceAccountHandler::hasAccess()\n"));
	UT_return_val_if_fail(pBuddy, false);
	
	// The web application is responsible for access control. Just do a quick
	// check here to see if this buddy makes any sense on this account, and
	// then be done with it.
	// NOTE: there is one drawback to this approach: say the document was shared
	// to a group, and a buddy (the one passed as a parameter to us) joined via
	// that group access. Now when we remove the group access from the document,
	// we do not have enough information here to see that we should disconnect
	// this particual buddy. Right now we don't have enough information to do that.
	// He will however be denied access when he tries to reconnect later, or even 
	// when he tries to save the document. It would be nice if we would fully fix 
	// this later, possibly by passing more information in the realm "userinfo"
	// XML blob.
	RealmBuddyPtr pRealBuddy = boost::dynamic_pointer_cast<RealmBuddy>(pBuddy);
	UT_return_val_if_fail(pRealBuddy, false);

	if (pRealBuddy->domain() != _getDomain())
		return false;

	return true;
}

bool ServiceAccountHandler::canShare(BuddyPtr pBuddy)
{
	UT_return_val_if_fail(pBuddy, false);

	ServiceBuddyPtr pServiceBuddy = boost::dynamic_pointer_cast<ServiceBuddy>(pBuddy);
	UT_return_val_if_fail(pServiceBuddy, false)

	if (pServiceBuddy->getType() == SERVICE_USER)
		return false; // sharing with yourself makes no sense

	return true;
}

bool ServiceAccountHandler::send(const Packet* /*packet*/)
{
	UT_DEBUGMSG(("ServiceAccountHandler::send(const Packet*)\n"));
	// this are typically announce session broadcast events and the like,
	// which we don't support in this backend
	UT_ASSERT_HARMLESS(UT_NOT_IMPLEMENTED);	
	return true;
}

bool ServiceAccountHandler::send(const Packet* packet, BuddyPtr pBuddy)
{
	UT_DEBUGMSG(("ServiceAccountHandler::send(const Packet*, BuddyPtr pBuddy)\n"));
	UT_return_val_if_fail(packet, false);
	UT_return_val_if_fail(pBuddy, false);

	RealmBuddyPtr pB = boost::static_pointer_cast<RealmBuddy>(pBuddy);
	uint8_t arr[] = { pB->realm_connection_id() };
	std::vector<uint8_t> connection_ids(arr, arr+1);

	boost::shared_ptr<std::string> data(new std::string());
	_createPacketStream(*data, packet);

	_send(boost::shared_ptr<rpv1::RoutingPacket>(new rpv1::RoutingPacket(connection_ids, data)), pB);
	return true;
}

void ServiceAccountHandler::_write_handler(const asio::error_code& e, std::size_t /*bytes_transferred*/,
											boost::shared_ptr<const RealmBuddy> /*recipient*/, boost::shared_ptr<realm::protocolv1::Packet> packet)
{
	if (e)
	{
		// TODO: disconnect buddy
		UT_DEBUGMSG(("Error sending packet: %s\n", e.message().c_str()));
		return;
	}
	
	if (packet)
	{
		UT_DEBUGMSG(("Packet sent: 0x%x\n", packet->type()));
	}
}										   

void ServiceAccountHandler::_write_result(const asio::error_code& e, std::size_t /*bytes_transferred*/,
													ConnectionPtr /*connection*/, boost::shared_ptr<realm::protocolv1::Packet> packet)
{
	if (e)
	{
		// TODO: disconnect connection
		UT_DEBUGMSG(("Error sending packet: %s\n", e.message().c_str()));
		return;
	}

	if (packet)
	{
		UT_DEBUGMSG(("Packet sent: 0x%x\n", packet->type()));
	}
}

void ServiceAccountHandler::getSessionsAsync()
{
	UT_DEBUGMSG(("ServiceAccountHandler::getSessionsAsync()\n"));

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);			
	
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	pManager->beginAsyncOperation(this);
	soa::function_call_ptr fc_ptr = constructListDocumentsCall();
	boost::shared_ptr<std::string> result_ptr(new std::string());
	boost::shared_ptr<AsyncWorker<bool> > async_list_docs_ptr(
				new AsyncWorker<bool>(
					boost::bind(&ServiceAccountHandler::_listDocuments, this, 
								fc_ptr, getProperty("uri"), verify_webapp_host, result_ptr),
					boost::bind(&ServiceAccountHandler::_listDocuments_cb, this, _1, fc_ptr, result_ptr)
				)
			);
	async_list_docs_ptr->start();	
}

void ServiceAccountHandler::getSessionsAsync(const Buddy& /*buddy*/)
{
	UT_DEBUGMSG(("ServiceAccountHandler::getSessionsAsync(const Buddy& buddy)\n"));

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);		
	
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	// TODO: we shouldn't ignore the buddy parameter, but for now, we do ;)

	pManager->beginAsyncOperation(this);
	soa::function_call_ptr fc_ptr = constructListDocumentsCall();
	boost::shared_ptr<std::string> result_ptr(new std::string());
	boost::shared_ptr<AsyncWorker<bool> > async_list_docs_ptr(
				new AsyncWorker<bool>(
					boost::bind(&ServiceAccountHandler::_listDocuments, this, 
								fc_ptr, getProperty("uri"), verify_webapp_host, result_ptr),
					boost::bind(&ServiceAccountHandler::_listDocuments_cb, this, _1, fc_ptr, result_ptr)
				)
			);
	async_list_docs_ptr->start();	
}

bool ServiceAccountHandler::startSession(PD_Document* pDoc, const std::vector<std::string>& /*vAcl*/,
			AbiCollab** pSession)
{
	UT_DEBUGMSG(("ServiceAccountHandler::startSession()\n"));
	UT_return_val_if_fail(pDoc, false);
	UT_return_val_if_fail(pSession, false);

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, false);

	const std::string uri = getProperty("uri");
	const std::string email = getProperty("email");
	std::string password = getProperty("password");
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	std::string filename;
	bool bFilenameChanged = false;
	if (pDoc->getFilename())
	{
		filename = UT_go_basename_from_uri(pDoc->getFilename());
	}
	else
	{
		filename = "New document.abw"; // TODO: mke this localizable
		bool res = askFilename(filename, true);
		if (!res)
			return false; // TODO: test this
		bFilenameChanged = true;
	}
	
	boost::shared_ptr<std::string> document(new std::string(""));
	UT_return_val_if_fail(AbiCollabSessionManager::serializeDocument(pDoc, *document, true) == UT_OK, false);
	
	soa::GenericPtr soap_result;
	do
	{
		// construct a SOAP method call to publish the document to abicollab.net
		// execute the call; we do this synchronous for simplicity for now
		// TODO: handle bad passwords
		soa::function_call fc("publishDocument", "publishDocumentResponse");
		fc("email", email)
			("password", password)
			("filename", filename)
			(soa::Base64Bin("data", document))
			("start_session", true);

		try {
			UT_DEBUGMSG(("Publishing document %s...\n", filename.c_str()));
			soap_result = soup_soa::invoke(uri, 
								soa::method_invocation("urn:AbiCollabSOAP", fc),
								verify_webapp_host?m_ssl_ca_file:"");
			break;
		} catch (soa::SoapFault& fault) {
			UT_DEBUGMSG(("Caught a soap fault: %s (error code: %s)!\n", 
						 fault.detail() ? fault.detail()->value().c_str() : "(null)",
						 fault.string() ? fault.string()->value().c_str() : "(null)"));

			acs::SOAP_ERROR err = acs::error(fault);
			switch (err)
			{
				case acs::SOAP_ERROR_INVALID_PASSWORD:
					if (!askPassword(email, password))
						return false;
					addProperty("password", password);
					pManager->storeProfile();	
					continue;
				case acs::SOAP_ERROR_DUP_FILENAME:
					if (!askFilename(filename, false))
						return false;
					bFilenameChanged = true;
					continue;
				default:
					UT_DEBUGMSG(("Unhandled SOAP error\n"));
					UT_return_val_if_fail(false, false);
			}
		}
	} while (!soap_result);
	UT_return_val_if_fail(soap_result, false);
	
	// handle the result
	soa::CollectionPtr rcp = soap_result->as<soa::Collection>("return");
	UT_return_val_if_fail(rcp, false);

	soa::IntPtr doc_id_ptr = rcp->get<soa::Int>("doc_id");
	UT_return_val_if_fail(doc_id_ptr, false);

	// connect to the returned realm
	// NOTE: we can safely use the (unique) document id as the session identifier, 
	// as there is basically only one _ever lasting_ session for each 
	// document stored on abicollab.net
	std::string session_id;
	try {
		session_id = boost::lexical_cast<std::string>(doc_id_ptr->value());
	} catch (boost::bad_lexical_cast &) {
		UT_return_val_if_fail(false, false);
	}

	ConnectionPtr connection = _realmConnect(rcp, doc_id_ptr->value(), session_id, true);
	UT_return_val_if_fail(connection, false);
	connection->setDocument(pDoc);
	m_connections.push_back(connection);

	// Register a serviceExporter to handle remote saves via a signal.
	// FIXME: the exporter is document dependent, so don't store it in a simple class member
	m_pExport = new AbiCollabService_Export(pDoc, this);
	pDoc->addListener(m_pExport, &m_iListenerID);
	
	// start the session
	UT_UTF8String sSessionId = session_id.c_str();
	RealmBuddyPtr buddy(
				new RealmBuddy(this, connection->user_id(), _getDomain(), connection->connection_id(), connection->master(), connection));
	*pSession = pManager->startSession(pDoc, sSessionId, this, true, NULL, buddy->getDescriptor());

	if (bFilenameChanged)
	{
		// set the new filename on the document
		char* szFilename = g_strdup(filename.c_str());
		pDoc->setFilename(szFilename);
		pDoc->signalListeners(PD_SIGNAL_DOCNAME_CHANGED);	
	}

	// everything was successful and the document is uploaded, so
	// we can mark the document to be clean.
	pDoc->setClean();
	pDoc->signalListeners(PD_SIGNAL_DOCNAME_CHANGED);

	return true;
}

bool ServiceAccountHandler::getAcl(AbiCollab* pSession, std::vector<std::string>& vAcl)
{
	UT_DEBUGMSG(("ServiceAccountHandler::getAcl()\n"));
	UT_return_val_if_fail(pSession, false);

	// fetch the current set of file permissions
	ConnectionPtr connection = _getConnection(pSession->getSessionId().utf8_str());
	UT_return_val_if_fail(connection, false);	
	DocumentPermissions perms;
	if (!_getPermissions(connection->doc_id(), perms))
		return false;
	
	m_permissions[connection->doc_id()] = perms;

	// Update the complete ACL with the newly fetched permissions.
	// We only support read/write editting for now, so we will ignore the 
	// read-only permissions (we will keep track of them however, so we won't
	// overwrite read-only permissions set by the web application.

	vAcl.clear();

	// add the friend permissions
	for (UT_uint32 i = 0; i < perms.read_write.size(); i++)  
	{
		ServiceBuddyPtr pBuddy = _getBuddy(SERVICE_FRIEND, perms.read_write[i]);
		UT_continue_if_fail(pBuddy);
		vAcl.push_back(pBuddy->getDescriptor(false).utf8_str());
	}

	// add the group permissions
	for (UT_uint32 i = 0; i < perms.group_read_write.size(); i++)  
	{
		ServiceBuddyPtr pBuddy = _getBuddy(SERVICE_GROUP, perms.group_read_write[i]);
		UT_continue_if_fail(pBuddy);
		vAcl.push_back(pBuddy->getDescriptor(false).utf8_str());
	}

	return true;
}

bool ServiceAccountHandler::setAcl(AbiCollab* pSession, const std::vector<std::string>& vAcl)
{
	UT_DEBUGMSG(("ServiceAccountHandler::setAcl()\n"));
	UT_return_val_if_fail(pSession, false);

	// set the permissions from the acl on the document on the webservice
	ConnectionPtr connection = _getConnection(pSession->getSessionId().utf8_str());
	UT_return_val_if_fail(connection, false);

	// Gather the friend and group IDs that will get read-write permission
	// on the document. Note that we do not support setting read-only or 
	// group-owner-read permissions from here, so we try to leave those 
	// untouched by copying in the results from the last getPermissions
	// result, if any.
	
	DocumentPermissions perms;
	std::map<uint64_t, DocumentPermissions>::iterator it = m_permissions.find(connection->doc_id());
	if (it != m_permissions.end())
	{
		printf(">>>>>> copying current RO permisions over...\n");
		perms.read_only = (*it).second.read_only;
		perms.group_read_only = (*it).second.group_read_only;
		perms.group_read_owner = (*it).second.group_read_owner;
	}

	for (UT_uint32 i = 0; i < vAcl.size(); i++)
	{
		ServiceBuddyPtr pBuddy = _getBuddy(vAcl[i].c_str());
		UT_continue_if_fail(pBuddy);

		switch (pBuddy->getType())
		{
			case SERVICE_USER:
				UT_ASSERT_HARMLESS(UT_NOT_REACHED); // setting permissions on yourself makes no sense
				break;
			case SERVICE_FRIEND:
				perms.read_write.push_back(pBuddy->getUserId());
				break;
			case SERVICE_GROUP:
				perms.group_read_write.push_back(pBuddy->getUserId());
				break;
			default:
				UT_ASSERT_HARMLESS(UT_NOT_REACHED);
				break;
		}
	}
	
	if (!_setPermissions(connection->doc_id(), perms))
		return false;

	return true;
}

// NOTE: we don't implement the opening of documents asynchronous; we block on it,
// as it's annoying to opening them async. We need to change this API
void ServiceAccountHandler::joinSessionAsync(BuddyPtr pBuddy, DocHandle& docHandle)
{
	UT_DEBUGMSG(("ServiceAccountHandler::getSessionsAsync(BuddyPtr pBuddy, DocHandle& docHandle)\n"));
	UT_return_if_fail(pBuddy);

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);		
	
	UT_DEBUGMSG(("Joining document %s\n", docHandle.getSessionId().utf8_str()));
	
	UT_uint64 doc_id;
	try {
		doc_id = boost::lexical_cast<uint64_t>(docHandle.getSessionId().utf8_str());
	} catch (boost::bad_lexical_cast &) {
		// TODO: report error
		UT_DEBUGMSG(("Error casting doc_id (%s) to an UT_uint64\n", docHandle.getSessionId().utf8_str()));
		return;
	}
	UT_return_if_fail(doc_id != 0);
	UT_DEBUGMSG(("doc_id: %llu\n", doc_id));	

	PD_Document* pDoc = NULL;
	acs::SOAP_ERROR err = openDocument(doc_id, 0, docHandle.getSessionId().utf8_str(), &pDoc, NULL);
	switch (err)
	{
		case acs::SOAP_ERROR_OK:
			return;
		case acs::SOAP_ERROR_INVALID_PASSWORD:
			{
				// TODO: asking for user input is not really nice in an async function
				const std::string email = getProperty("email");
				std::string password;
				if (askPassword(email, password))
				{
					// try again with the new password
					addProperty("password", password);
					pManager->storeProfile();
					joinSessionAsync(pBuddy, docHandle);				
				}
			}
			return;
		default:
			{
				// TODO: add the document name, error type and perhaps the server name
				UT_UTF8String msg("Error importing document ");
				msg += docHandle.getName();
				msg += ".";
				XAP_App::getApp()->getLastFocussedFrame()->showMessageBox(msg.utf8_str(), XAP_Dialog_MessageBox::b_O, XAP_Dialog_MessageBox::a_OK);
			}
			break;
	}
}

bool ServiceAccountHandler::hasSession(const UT_UTF8String& sSessionId)
{
	for (std::vector<boost::shared_ptr<RealmConnection> >::iterator it = m_connections.begin(); it != m_connections.end(); it++)
	{
		boost::shared_ptr<RealmConnection> connection_ptr = *it;
		UT_continue_if_fail(connection_ptr);
		if (connection_ptr->session_id() == sSessionId.utf8_str())
			return true;
	}
	return AccountHandler::hasSession(sSessionId);
}

acs::SOAP_ERROR ServiceAccountHandler::openDocument(UT_uint64 doc_id, UT_uint64 revision, const std::string& session_id, PD_Document** pDoc, XAP_Frame* pFrame)
{
	UT_DEBUGMSG(("ServiceAccountHandler::openDocument() - doc_id: %llu\n", doc_id));
	
	const std::string uri = getProperty("uri");
	const std::string email = getProperty("email");
	const std::string password = getProperty("password");
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	// construct a SOAP method call to gets our documents
	soa::function_call fc("openDocument", "openDocumentResponse");
	fc("email", email)("password", password)("doc_id", static_cast<int64_t>(doc_id))("revision", static_cast<int64_t>(revision));

	// execute the call
	boost::shared_ptr<ProgressiveSoapCall> call(new ProgressiveSoapCall(uri, fc, verify_webapp_host?m_ssl_ca_file:""));
	soa::GenericPtr soap_result;
	try {
		soap_result = call->run();
	} catch (soa::SoapFault& fault) {
		UT_DEBUGMSG(("Caught a soap fault: %s (error code: %s)!\n", 
					 fault.detail() ? fault.detail()->value().c_str() : "(null)",
					 fault.string() ? fault.string()->value().c_str() : "(null)"));
		return acs::error(fault);
	}
	UT_return_val_if_fail(soap_result, acs::SOAP_ERROR_GENERIC);
	
	// handle the result
	soa::CollectionPtr rcp = soap_result->as<soa::Collection>("return");
	UT_return_val_if_fail(rcp, acs::SOAP_ERROR_GENERIC);

	soa::IntPtr user_id = rcp->get<soa::Int>("user_id");
	soa::IntPtr owner_id = rcp->get<soa::Int>("owner_id");
	UT_return_val_if_fail(user_id, acs::SOAP_ERROR_GENERIC);
	UT_return_val_if_fail(owner_id, acs::SOAP_ERROR_GENERIC);
	bool bLocallyOwned = (user_id->value() == owner_id->value());

	soa::BoolPtr master = rcp->get<soa::Bool>("master");
	if (!master)
	{
		UT_DEBUGMSG(("Error reading master field\n"));
		return acs::SOAP_ERROR_GENERIC;
	}
	soa::StringPtr filename_ptr = rcp->get<soa::String>("filename");
	if (!filename_ptr)
	{
		UT_DEBUGMSG(("Error reading filename field\n"));
		return acs::SOAP_ERROR_GENERIC;
	}
	// check the filename; it shouldn't ever be empty, but just check nonetheless
	// TODO: append a number if the filename happens to be empty
	std::string filename = filename_ptr->value().size() > 0 ? filename_ptr->value() : "Untitled";

	// open a connection with the realm
	ConnectionPtr connection = _realmConnect(rcp, doc_id, session_id, master->value());
	UT_return_val_if_fail(connection, acs::SOAP_ERROR_GENERIC);
	
	// load the document
	acs::SOAP_ERROR open_result = master->value()
				? _openDocumentMaster(connection, rcp, pDoc, pFrame, session_id, filename, bLocallyOwned)
				: _openDocumentSlave(connection, pDoc, pFrame, filename, bLocallyOwned);

	if (open_result != acs::SOAP_ERROR_OK)
	{
		UT_DEBUGMSG(("Error opening document!\n"));
		// TODO: also nuke the queue!
		connection->disconnect();
		return acs::SOAP_ERROR_GENERIC;
	}
	
	UT_DEBUGMSG(("Document loaded successfully\n"));
	connection->setDocument(*pDoc);
	m_connections.push_back(connection);

	return acs::SOAP_ERROR_OK;
}

ConnectionPtr ServiceAccountHandler::_realmConnect(soa::CollectionPtr rcp, 
			UT_uint64 doc_id, const std::string& session_id, bool master)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_realmConnect()\n"));
	UT_return_val_if_fail(rcp, ConnectionPtr());

	soa::StringPtr realm_address = rcp->get<soa::String>("realm_address");
	soa::IntPtr realm_port = rcp->get<soa::Int>("realm_port");
	soa::BoolPtr realm_tls_ptr = rcp->get<soa::Bool>("realm_tls");
	soa::StringPtr cookie = rcp->get<soa::String>("cookie");

	bool realm_tls = true; // "realm_tls" can be missing from the soap response, in which case the default is "use tls"
	if (realm_tls_ptr)
		realm_tls = realm_tls_ptr->value();
	
	// some sanity checking
	if (!realm_address || realm_address->value().size() == 0 || !realm_port || realm_port->value() <= 0 || !cookie || cookie->value().size() == 0)
	{
		UT_DEBUGMSG(("Invalid realm login information\n"));
		return ConnectionPtr();
	}   
	
	// open the realm connection!
	UT_DEBUGMSG(("realm_address: %s, realm_port: %lld, realm_tls: %s, cookie: %s\n",
	    realm_address->value().c_str(), 
	    realm_port->value(), 
	    realm_tls ? "yes" : "no",
	    cookie->value().c_str()));
	ConnectionPtr connection = 
		boost::shared_ptr<RealmConnection>(new RealmConnection(m_ssl_ca_file, realm_address->value(), 
								realm_port->value(), realm_tls, cookie->value(), doc_id, master, session_id,
								boost::bind(&ServiceAccountHandler::_handleRealmPacket, this, _1)));

	// TODO: this connect() call is blocking, so it _could_ take a while; we should
	// display a progress bar in that case
	if (!connection->connect())
	{
		UT_DEBUGMSG(("Error connecting to realm %s:%lld\n", realm_address->value().c_str(), realm_port->value()));
		return ConnectionPtr();
	}

	return connection;
}

ServiceBuddyPtr	ServiceAccountHandler::_getBuddy(const UT_UTF8String& descriptor)
{
	for (std::vector<BuddyPtr>::iterator it = getBuddies().begin(); it != getBuddies().end(); it++)
	{
		ServiceBuddyPtr pB = boost::static_pointer_cast<ServiceBuddy>(*it);
		UT_continue_if_fail(pB);
		if (pB->getDescriptor(false) == descriptor)
			return pB;
	}
	return ServiceBuddyPtr();	
}

ServiceBuddyPtr ServiceAccountHandler::_getBuddy(ServiceBuddyPtr pBuddy)
{
	UT_return_val_if_fail(pBuddy, ServiceBuddyPtr());
	for (std::vector<BuddyPtr>::iterator it = getBuddies().begin(); it != getBuddies().end(); it++)
	{
		ServiceBuddyPtr pB = boost::static_pointer_cast<ServiceBuddy>(*it);
		UT_continue_if_fail(pB);
		if (pB->getUserId() == pBuddy->getUserId() &&
			pB->getType() == pBuddy->getType())
			return pB;
	}
	return ServiceBuddyPtr();
}

ServiceBuddyPtr ServiceAccountHandler::_getBuddy(ServiceBuddyType type, uint64_t user_id)
{
	for (std::vector<BuddyPtr>::iterator it = getBuddies().begin(); it != getBuddies().end(); it++)
	{
		ServiceBuddyPtr pB = boost::static_pointer_cast<ServiceBuddy>(*it);
		UT_continue_if_fail(pB);
		if (pB->getUserId() == user_id && pB->getType() == type)
			return pB;
	}
	return ServiceBuddyPtr();
}

acs::SOAP_ERROR ServiceAccountHandler::_openDocumentMaster(ConnectionPtr connection, soa::CollectionPtr rcp, PD_Document** pDoc, XAP_Frame* pFrame, 
																 	const std::string& session_id, const std::string& filename, bool bLocallyOwned)
{
	UT_return_val_if_fail(rcp || pDoc, acs::SOAP_ERROR_GENERIC);
	
	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, acs::SOAP_ERROR_GENERIC);	
	
	soa::StringPtr document = rcp->get<soa::String>("document");
	UT_return_val_if_fail(document, acs::SOAP_ERROR_GENERIC);
	
	// construct the document
	UT_return_val_if_fail(AbiCollabSessionManager::deserializeDocument(pDoc, document->value(), true) == UT_OK, acs::SOAP_ERROR_GENERIC);
	UT_return_val_if_fail(*pDoc, acs::SOAP_ERROR_GENERIC);

	// set the filename
	gchar* fname = g_strdup(filename.c_str());
	(*pDoc)->setFilename(fname);
	
	// Register a serviceExporter to handle remote saves via a signal.
	// FIXME: the exporter is document dependent, so don't store it in a simple class member
	m_pExport = new AbiCollabService_Export(*pDoc,this);
	(*pDoc)->addListener(m_pExport,	&m_iListenerID);
	
	// start the session
	UT_UTF8String sSessionId = session_id.c_str();
	RealmBuddyPtr buddy(
				new RealmBuddy(this, connection->user_id(), _getDomain(), connection->connection_id(), connection->master(), connection));
	pManager->startSession(*pDoc, sSessionId, this, bLocallyOwned, pFrame, buddy->getDescriptor());
	
	return acs::SOAP_ERROR_OK;
}

acs::SOAP_ERROR ServiceAccountHandler::_openDocumentSlave(ConnectionPtr connection, PD_Document** pDoc, XAP_Frame* pFrame, 
											const std::string& filename, bool bLocallyOwned)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_openDocumentSlave()\n"));
	UT_return_val_if_fail(connection, acs::SOAP_ERROR_GENERIC);
	UT_return_val_if_fail(pDoc, acs::SOAP_ERROR_GENERIC);
	
	// get the progress dialog
	XAP_Frame* pDlgFrame = XAP_App::getApp()->getLastFocussedFrame();
	UT_return_val_if_fail(pDlgFrame, acs::SOAP_ERROR_GENERIC);

	XAP_DialogFactory* pFactory = static_cast<XAP_DialogFactory *>(XAP_App::getApp()->getDialogFactory());
	UT_return_val_if_fail(pFactory, acs::SOAP_ERROR_GENERIC);

	AP_Dialog_GenericProgress* pDlg = static_cast<AP_Dialog_GenericProgress*>(
				pFactory->requestDialog(ServiceAccountHandler::getDialogGenericProgressId())
			);		
	pDlg->setTitle("Retrieving Document");
	pDlg->setInformation("Please wait while retrieving document...");

	// setup the information for the callback to use when the document comes in
	connection->loadDocumentStart(pDlg, pDoc, pFrame, filename, bLocallyOwned);
	
	// run the dialog
	pDlg->runModal(pDlgFrame);
	bool m_cancelled = pDlg->getAnswer() == AP_Dialog_GenericProgress::a_CANCEL;
	UT_DEBUGMSG(("Progress dialog destroyed, result: %s\n", m_cancelled ? "cancelled" : "ok"));
	pFactory->releaseDialog(pDlg);		
	connection->loadDocumentEnd();
	
	if (m_cancelled)
		return acs::SOAP_ERROR_GENERIC;

	UT_return_val_if_fail(*pDoc, acs::SOAP_ERROR_GENERIC);

	// Register a serviceExporter to handle remote saves via a signal.
	// FIXME: the exporter is document dependent, so don't store it in a simple class member
	m_pExport = new AbiCollabService_Export(*pDoc,this);
	(*pDoc)->addListener(m_pExport,&m_iListenerID);

	return acs::SOAP_ERROR_OK;
}

bool ServiceAccountHandler::_getConnections()
{
	UT_DEBUGMSG(("ServiceAccountHandler::_getConnections()\n"));

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, false);

	const std::string uri = getProperty("uri");
	const std::string email = getProperty("email");
	std::string password = getProperty("password");
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	soa::GenericPtr soap_result;
	do
	{
		soa::function_call fc("getConnections", "getConnectionsResponse");
		fc("email", email)
			("password", password);
		try {
			soap_result = soup_soa::invoke(uri, 
								soa::method_invocation("urn:AbiCollabSOAP", fc),
								verify_webapp_host?m_ssl_ca_file:"");
			break;
		} catch (soa::SoapFault& fault) {
			UT_DEBUGMSG(("Caught a soap fault: %s (error code: %s)!\n", 
						 fault.detail() ? fault.detail()->value().c_str() : "(null)",
						 fault.string() ? fault.string()->value().c_str() : "(null)"));

			acs::SOAP_ERROR err = acs::error(fault);
			switch (err)
			{
				case acs::SOAP_ERROR_INVALID_PASSWORD:
					if (!askPassword(email, password))
						return false;
					addProperty("password", password);
					pManager->storeProfile();	
					continue;
				default:
					UT_DEBUGMSG(("Unhandled SOAP error\n"));
					UT_return_val_if_fail(false, false);
			}
		}
	} while (!soap_result);
	UT_return_val_if_fail(soap_result, false);

	// handle the result
	soa::CollectionPtr rcp = soap_result->as<soa::Collection>("return");
	UT_return_val_if_fail(rcp, false);

	soa::ArrayPtr friends_ptr = rcp->get< soa::Array<soa::GenericPtr> >("friends");
	soa::ArrayPtr groups_ptr = rcp->get< soa::Array<soa::GenericPtr> >("groups");

	// construct our friends
	if (soa::ArrayPtr friends_array = rcp->get< soa::Array<soa::GenericPtr> >("friends"))
		if (abicollab::FriendArrayPtr friends = friends_array->construct<abicollab::Friend>())
			for (size_t i = 0; i < friends->size(); i++)
				if (abicollab::FriendPtr friend_ = friends->operator[](i))
				{
					UT_DEBUGMSG(("Got a friend: %s <id: %lld>\n", friend_->name.c_str(), friend_->friend_id));
					if (friend_->name != "")
					{
						ServiceBuddyPtr pBuddy = boost::shared_ptr<ServiceBuddy>(new ServiceBuddy(this, SERVICE_FRIEND, friend_->friend_id, friend_->name, _getDomain()));
						ServiceBuddyPtr pExistingBuddy = _getBuddy(pBuddy); // TODO: add a getBuddy function based on the email address
						if (!pExistingBuddy)
							addBuddy(pBuddy);
					}				
				}

	// construct our groups
	if (soa::ArrayPtr groups_array = rcp->get< soa::Array<soa::GenericPtr> >("groups"))
		if (abicollab::GroupArrayPtr groups = groups_array->construct<abicollab::Group>())
			for (size_t i = 0; i < groups->size(); i++)
				if (abicollab::GroupPtr group_ = groups->operator[](i))
				{
					UT_DEBUGMSG(("Got a group: %s <id: %lld>\n", group_->name.c_str(), group_->group_id));
					if (group_->name != "")
					{
						ServiceBuddyPtr pBuddy = boost::shared_ptr<ServiceBuddy>(new ServiceBuddy(this, SERVICE_GROUP, group_->group_id, group_->name, _getDomain()));
						ServiceBuddyPtr pExistingBuddy = _getBuddy(pBuddy); // TODO: add a getBuddy function based on the email address
						if (!pExistingBuddy)
							addBuddy(pBuddy);
					}				
				}

	return true;
}

static void s_copy_int_array(soa::ArrayPtr array_ptr, std::vector<UT_uint64>& result)
{
	if (!array_ptr)
		return;

	for (UT_uint32 i = 0; i < array_ptr->size(); i++)
	{
		soa::GenericPtr v = array_ptr->operator[](i);
		UT_continue_if_fail(v);
		soa::IntPtr vi = v->as<soa::Int>();
		UT_continue_if_fail(vi);
		result.push_back(vi->value());
	}
}

bool ServiceAccountHandler::_getPermissions(uint64_t doc_id, DocumentPermissions& perms)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_getPermissions()\n"));

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, false);

	const std::string uri = getProperty("uri");
	const std::string email = getProperty("email");
	std::string password = getProperty("password");
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	soa::GenericPtr soap_result;
	do
	{
		soa::function_call fc("getPermissions", "getPermissionsResponse");
		fc("email", email)
			("password", password)
			("doc_id", static_cast<int64_t>(doc_id));

		try {
			UT_DEBUGMSG(("Getting permissions for document %llu...\n", doc_id));
			soap_result = soup_soa::invoke(uri, 
								soa::method_invocation("urn:AbiCollabSOAP", fc),
								verify_webapp_host?m_ssl_ca_file:"");
			break;
		} catch (soa::SoapFault& fault) {
			UT_DEBUGMSG(("Caught a soap fault: %s (error code: %s)!\n", 
						 fault.detail() ? fault.detail()->value().c_str() : "(null)",
						 fault.string() ? fault.string()->value().c_str() : "(null)"));

			acs::SOAP_ERROR err = acs::error(fault);
			switch (err)
			{
				case acs::SOAP_ERROR_INVALID_PASSWORD:
					if (!askPassword(email, password))
						return false;
					addProperty("password", password);
					pManager->storeProfile();	
					continue;
				default:
					UT_DEBUGMSG(("Unhandled SOAP error\n"));
					UT_return_val_if_fail(false, false);
			}
		}
	} while (!soap_result);
	UT_return_val_if_fail(soap_result, false);
	
	// handle the result
	soa::CollectionPtr rcp = soap_result->as<soa::Collection>("return");
	UT_return_val_if_fail(rcp, false);

	s_copy_int_array(rcp->get< soa::Array<soa::GenericPtr> >("read_write"), perms.read_write);
	s_copy_int_array(rcp->get< soa::Array<soa::GenericPtr> >("read_only"), perms.read_only);
	s_copy_int_array(rcp->get< soa::Array<soa::GenericPtr> >("group_read_write"), perms.group_read_write);
	s_copy_int_array(rcp->get< soa::Array<soa::GenericPtr> >("group_read_only"), perms.group_read_only);
	s_copy_int_array(rcp->get< soa::Array<soa::GenericPtr> >("group_read_owner"), perms.group_read_owner);

	return true;
}

bool ServiceAccountHandler::_setPermissions(UT_uint64 doc_id, DocumentPermissions& perms)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_setPermissions()\n"));

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_val_if_fail(pManager, false);

	const std::string uri = getProperty("uri");
	const std::string email = getProperty("email");
	std::string password = getProperty("password");
	bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

	soa::GenericPtr soap_result;
	do
	{
		soa::function_call fc("setPermissions", "setPermissionsResponse");
		fc("email", email)("password", password)("doc_id", static_cast<int64_t>(doc_id));

		// add the friend permissions

		soa::ArrayPtr read_write(new soa::Array<soa::GenericPtr>(""));
		for (UT_uint32 i = 0; i < perms.read_write.size(); i++)
			read_write->add(soa::IntPtr(new soa::Int("item", perms.read_write[i])));
		fc("read_write", read_write, soa::INT_TYPE);

		soa::ArrayPtr read_only(new soa::Array<soa::GenericPtr>(""));
		for (UT_uint32 i = 0; i < perms.read_only.size(); i++)
			read_only->add(soa::IntPtr(new soa::Int("item", perms.read_only[i])));
		fc("read_only", read_only, soa::INT_TYPE);

		// add the group permissions

		soa::ArrayPtr group_read_write(new soa::Array<soa::GenericPtr>(""));
		for (UT_uint32 i = 0; i < perms.group_read_write.size(); i++)
			group_read_write->add(soa::IntPtr(new soa::Int("item", perms.group_read_write[i])));
		fc("group_read_write", group_read_write, soa::INT_TYPE);

		soa::ArrayPtr group_read_only(new soa::Array<soa::GenericPtr>(""));
		for (UT_uint32 i = 0; i < perms.group_read_only.size(); i++)
			group_read_only->add(soa::IntPtr(new soa::Int("item", perms.group_read_only[i])));
		fc("group_read_only", group_read_only, soa::INT_TYPE);

		soa::ArrayPtr group_read_owner(new soa::Array<soa::GenericPtr>(""));
		for (UT_uint32 i = 0; i < perms.group_read_owner.size(); i++)
			group_read_owner->add(soa::IntPtr(new soa::Int("item", perms.group_read_owner[i])));
		fc("group_read_owner", group_read_owner, soa::INT_TYPE);

		try {
			UT_DEBUGMSG(("Getting permissions for document %llu...\n", doc_id));
			soap_result = soup_soa::invoke(uri, 
								soa::method_invocation("urn:AbiCollabSOAP", fc),
								verify_webapp_host?m_ssl_ca_file:"");
			break;
		} catch (soa::SoapFault& fault) {
			UT_DEBUGMSG(("Caught a soap fault: %s (error code: %s)!\n", 
						 fault.detail() ? fault.detail()->value().c_str() : "(null)",
						 fault.string() ? fault.string()->value().c_str() : "(null)"));

			acs::SOAP_ERROR err = acs::error(fault);
			switch (err)
			{
				case acs::SOAP_ERROR_INVALID_PASSWORD:
					if (!askPassword(email, password))
						return false;
					addProperty("password", password);
					pManager->storeProfile();	
					continue;
				default:
					UT_DEBUGMSG(("Unhandled SOAP error\n"));
					UT_return_val_if_fail(false, false);
			}
		}
	} while (!soap_result);
	UT_return_val_if_fail(soap_result, false);

	soa::BoolPtr res = soap_result->as<soa::Bool>();
	UT_return_val_if_fail(res, false);
	return res->value();
}

soa::function_call_ptr ServiceAccountHandler::constructListDocumentsCall()
{
	const std::string email = getProperty("email");
	const std::string password = getProperty("password");

	// construct a SOAP method call to gets our documents
	soa::function_call_ptr fc_ptr(new soa::function_call("listDocuments", "listDocumentsResponse"));
	(*fc_ptr)("email", email)("password", password);

	return fc_ptr;
}

soa::function_call_ptr ServiceAccountHandler::constructSaveDocumentCall(PD_Document* pDoc, ConnectionPtr connection_ptr)
{
	UT_return_val_if_fail(pDoc, soa::function_call_ptr());
	UT_return_val_if_fail(connection_ptr, soa::function_call_ptr());

	UT_DEBUGMSG(("Saving document with id %llu, session id %s to webservice!\n",
	             connection_ptr->doc_id(), connection_ptr->session_id().c_str()));
	
	const std::string email = getProperty("email");
	const std::string password = getProperty("password");

	boost::shared_ptr<std::string> document(new std::string(""));
	UT_return_val_if_fail(AbiCollabSessionManager::serializeDocument(pDoc, *document, true) == UT_OK, soa::function_call_ptr());
	
	// construct a SOAP method call to gets our documents
	soa::function_call_ptr fc_ptr(new soa::function_call("saveDocument", "saveDocumentResponse"));
	(*fc_ptr)("email", email)
		("password", password)
		("doc_id", static_cast<int64_t>(connection_ptr->doc_id()))
		(soa::Base64Bin("data", document));

	return fc_ptr;
}

void ServiceAccountHandler::signal(const Event& event, BuddyPtr pSource)
{
	UT_DEBUGMSG(("ServiceAccountHandler::signal()\n"));
	
	// NOTE: do NOT let AccountHandler::signal() send broadcast packets!
	// It will send them to all buddies, including the ones we created
	// to list the available documents: ServiceBuddies. They are just fake
	// buddies however, and can't receive real packets. Only RealmBuddy's
	// can be sent packets


	// Note: there is no real need to pass the PCT_CloseSessionEvent and
	// PCT_DisjoinSessionEvent signals to the AccountHandler::signal()
	// function: that one will send all buddies the 'session is closed'
	// signal. However, on this backend, the abicollab.net realm will 
	// handle that for us
	
	switch (event.getClassType())
	{
		case PCT_CloseSessionEvent:
			{
				UT_DEBUGMSG(("Got a PCT_CloseSessionEvent\n"));
				const CloseSessionEvent cse = static_cast<const CloseSessionEvent&>(event);
				// check if this event came from this account in the first place
				if (pSource && pSource->getHandler() != this)
				{
					// nope, a session was closed on some other account; ignore this...
					return;
				}
				UT_return_if_fail(!pSource); // we shouldn't receive these events over the wire on this backend
				ConnectionPtr connection_ptr = _getConnection(cse.getSessionId().utf8_str());
				// if we don't host this session, then we have no connection for it; 
				// this is perfectly valid, for example if there are more than 1 active
				// service accounts
				if (connection_ptr)
				{
					UT_DEBUGMSG(("We host this session, disconnecting the realm connection...\n"));
					connection_ptr->disconnect();
				}
			}
			break;
		case PCT_DisjoinSessionEvent:
			{
				UT_DEBUGMSG(("Got a PCT_DisjoinSessionEvent, disconnecting the realm connection...\n"));
				const DisjoinSessionEvent dse = static_cast<const DisjoinSessionEvent&>(event);
				// check if this event came from this account in the first place
				if (pSource && pSource->getHandler() != this)
				{
					// nope, a session was closed on some other account; ignore this...
					return;
				}
				UT_return_if_fail(!pSource); // we shouldn't receive these events over the wire on this backend
				ConnectionPtr connection_ptr = _getConnection(dse.getSessionId().utf8_str());
				UT_return_if_fail(connection_ptr);
				connection_ptr->disconnect();
			}
			break;
		case PCT_StartSessionEvent:
			// TODO: users should get this I guess, but I don't know a proper way to implement this yet
			break;
		default:	
			// TODO: implement me
			break;
	}
}

bool ServiceAccountHandler::parseUserInfo(const std::string& userinfo, uint64_t& user_id)
{
	xmlDocPtr doc = xmlReadMemory(&userinfo[0], userinfo.size(), "noname.xml", NULL, 0);
	UT_return_val_if_fail(doc, false);
		
	xmlNode* rootNode = xmlDocGetRootElement(doc);
	if (!rootNode || strcasecmp(reinterpret_cast<const char*>(rootNode->name), "user") != 0) {
		UT_ASSERT_HARMLESS(UT_SHOULD_NOT_HAPPEN);
		xmlFreeDoc(doc);
		return false;
	}

	xmlChar* id = xmlGetProp(rootNode, reinterpret_cast<const xmlChar*>("id"));
	std::string id_str = reinterpret_cast<char *>(id); 
	FREEP(id);

	try
	{
		user_id = boost::lexical_cast<uint64_t>(id_str);
	}
	catch (boost::bad_lexical_cast&)
	{
		xmlFreeDoc(doc);
		return false;
	}

	xmlFreeDoc(doc);
	return true;
}

// NOTE: _listDocuments can be called from a thread other than our mainloop;
// Don't let access or modify any data from the mainloop!
// TODO: don't need this method, call soup_soa::invoke directly
bool ServiceAccountHandler::_listDocuments(soa::function_call_ptr fc_ptr,
					const std::string uri, bool verify_webapp_host,
					boost::shared_ptr<std::string> result_ptr)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_listDocuments()\n"));
	UT_return_val_if_fail(fc_ptr, false);
	
	return soup_soa::invoke(uri, soa::method_invocation("urn:AbiCollabSOAP", *fc_ptr), verify_webapp_host?m_ssl_ca_file:"", *result_ptr);
}


void ServiceAccountHandler::_listDocuments_cb(bool success, 
			soa::function_call_ptr fc_ptr, boost::shared_ptr<std::string> result_ptr)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_listDocuments_cb()\n"));
	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);			

	pManager->endAsyncOperation(this);

	UT_return_if_fail(success);
	UT_return_if_fail(fc_ptr);
	UT_return_if_fail(result_ptr);

	// handle the result
	soa::GenericPtr soap_result;
	try {
		soa::method_invocation mi("urn:AbiCollabSOAP", *fc_ptr);
		soap_result = soa::parse_response(*result_ptr, mi.function().response());
	} catch (soa::SoapFault& fault) {
		UT_DEBUGMSG(("Caught a soap fault: %s (error code: %s)!\n", 
					 fault.detail() ? fault.detail()->value().c_str() : "(null)",
					 fault.string() ? fault.string()->value().c_str() : "(null)"));
		acs::SOAP_ERROR error = acs::error(fault);
		switch (error)
		{
			case acs::SOAP_ERROR_INVALID_PASSWORD:
				{
					// FIXME: should we ask for a password in an async callback?
					const std::string email = getProperty("email");
					bool verify_webapp_host = (getProperty("verify-webapp-host") == "true");

					std::string password;
					if (askPassword(email, password))
					{
						// store the new password
						addProperty("password", password);
						pManager->storeProfile();

						// reconstruct the SOAP call with the new password
						fc_ptr = constructListDocumentsCall();

						// re-attempt to fetch the documents list
						pManager->beginAsyncOperation(this);
						boost::shared_ptr<AsyncWorker<bool> > async_list_docs_ptr(
									new AsyncWorker<bool>(
										boost::bind(&ServiceAccountHandler::_listDocuments, this,
													fc_ptr, getProperty("uri"), verify_webapp_host, result_ptr),
										boost::bind(&ServiceAccountHandler::_listDocuments_cb, this, _1, fc_ptr, result_ptr)
									)
								);
						async_list_docs_ptr->start();
					}
				}
				return;
			default:
				// FIXME: maybe determine the exact error
				/// TODO: show a message box?
				UT_DEBUGMSG(("Caught SOAP error: %d\n", error));
				UT_return_if_fail(error == acs::SOAP_ERROR_OK);
		}
	}
	if (!soap_result)
		return;

	// handle the result
	soa::CollectionPtr rcp = soap_result->as<soa::Collection>("return");
	UT_return_if_fail(rcp);

	std::map<ServiceBuddyPtr, GetSessionsResponseEvent> sessions;

	// load our own files
	soa::IntPtr user_id = rcp->get< soa::Int >("user_id");
	soa::StringPtr username = rcp->get< soa::String >("name");
	UT_return_if_fail(user_id && username);
	ServiceBuddyPtr pBuddy(new ServiceBuddy(this, SERVICE_USER, user_id->value(), username->value(), _getDomain()));
	GetSessionsResponseEvent& gsre1 = sessions[pBuddy];
	_parseSessionFiles(rcp->get< soa::Array<soa::GenericPtr> >("files"), gsre1);

	// load the files from our friends
	if (soa::ArrayPtr friends_array = rcp->get< soa::Array<soa::GenericPtr> >("friends"))
		if (abicollab::FriendFilesArrayPtr friends = friends_array->construct<abicollab::FriendFiles>())
			for (size_t i = 0; i < friends->size(); i++)
				if (abicollab::FriendFilesPtr friend_ = friends->operator[](i))
				{
					UT_DEBUGMSG(("Got a friend: %s <%s>\n", friend_->name.c_str(), friend_->email.c_str()));
					if (friend_->name != "")
					{
						// add this friend's documents by generating a GetSessionsResponseEvent
						// to populate all the required document structures
						ServiceBuddyPtr friend_ptr(new ServiceBuddy(this, SERVICE_FRIEND, friend_->friend_id, friend_->name, _getDomain()));
						GetSessionsResponseEvent& gsre = sessions[friend_ptr];
						_parseSessionFiles(friend_->files, gsre);
					}				
				}
	
	// load the files from our groups
	if (soa::ArrayPtr groups_array = rcp->get< soa::Array<soa::GenericPtr> >("groups"))
		if (abicollab::GroupFilesArrayPtr groups = groups_array->construct<abicollab::GroupFiles>())
			for (size_t i = 0; i < groups->size(); i++)
				if (abicollab::GroupFilesPtr group_ = groups->operator[](i))
				{
					UT_DEBUGMSG(("Got a group: %s\n", group_->name.c_str()));
					if (group_->name != "")
					{
						// add this friend's documents by generating a GetSessionsResponseEvent
						// to populate all the required document structures
						ServiceBuddyPtr group_ptr(new ServiceBuddy(this, SERVICE_GROUP, group_->group_id, group_->name, _getDomain()));
						GetSessionsResponseEvent& gsre = sessions[group_ptr];
						_parseSessionFiles(group_->files, gsre);
					}				
				}

	// fire the Add Session event signals
	for (std::map<ServiceBuddyPtr, GetSessionsResponseEvent>::iterator it = sessions.begin(); it != sessions.end(); it++)
	{
		ServiceBuddyPtr pServiceBuddy = (*it).first;
		ServiceBuddyPtr pExistingBuddy = _getBuddy(pServiceBuddy); // TODO: add a getBuddy function based on the email address
		if (!pExistingBuddy)
		{
			pExistingBuddy = pServiceBuddy;
			addBuddy(pServiceBuddy);
		}
		_handlePacket(&((*it).second), pExistingBuddy);
	}

}

void ServiceAccountHandler::_handleJoinSessionRequestResponse(
									JoinSessionRequestResponseEvent* jsre, BuddyPtr pBuddy, 
									XAP_Frame* pFrame, PD_Document** pDoc, const std::string& filename,
									bool bLocallyOwned)
{
	UT_return_if_fail(jsre);
	UT_return_if_fail(pBuddy);
	UT_return_if_fail(pDoc);
	
	UT_DEBUGMSG(("_handleJoinSessionRequestResponse() - pFrame: 0x%p\n", pFrame));
	
	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);
	
	UT_return_if_fail(AbiCollabSessionManager::deserializeDocument(pDoc, jsre->m_sZABW, false) == UT_OK);
	UT_return_if_fail(*pDoc);

	gchar* fname = g_strdup(filename.c_str());
	(*pDoc)->setFilename(fname);

	pManager->joinSession(jsre->getSessionId(), *pDoc, jsre->m_sDocumentId, jsre->m_iRev, jsre->getAuthorId(), pBuddy, this, bLocallyOwned, pFrame);

}

void ServiceAccountHandler::_handleRealmPacket(ConnectionPtr connection)
{
	UT_return_if_fail(connection);

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);

	// make sure we have handled _all_ packets in the queue before checking
	// the disconnected status
	bool disconnected = !connection->isConnected();
	_handleMessages(connection);

	if (disconnected)
	{
		UT_DEBUGMSG(("RealmConnection is not connected anymore (this was a %s connection)!\n", connection->master() ? "master" : "slave"));
		std::vector<RealmBuddyPtr> buddies = connection->getBuddies();
		for (std::vector<RealmBuddyPtr>::iterator it = buddies.begin(); it != buddies.end(); it++)
		{
			RealmBuddyPtr realm_buddy_ptr = *it;
			UT_continue_if_fail(realm_buddy_ptr);
			UT_DEBUGMSG(("Lost connection to buddy with connection id: %d\n", realm_buddy_ptr->realm_connection_id()));
			pManager->removeBuddy(realm_buddy_ptr, false);
		}
		
		// remove the connection from our connection list
		_removeConnection(connection->session_id());
	}

	// check other things here if needed...
}

ConnectionPtr ServiceAccountHandler::_getConnection(const std::string& session_id)
{
	for (std::vector<ConnectionPtr>::iterator it = m_connections.begin(); it != m_connections.end(); it++)
	{
		UT_continue_if_fail(*it);
		if ((*it)->session_id() == session_id)
			return *it;
	}
	return ConnectionPtr();
}

void ServiceAccountHandler::_removeConnection(const std::string& session_id)
{
	UT_DEBUGMSG(("ServiceAccountHandler::_removeConnection()\n"));
	for (std::vector<ConnectionPtr>::iterator it = m_connections.begin(); it != m_connections.end(); it++)
	{
		UT_continue_if_fail(*it);
		ConnectionPtr connection = *it;
		UT_DEBUGMSG(("looking at connection with session id <%s>, closing session <%s>\n", connection->session_id().c_str(), session_id.c_str()));
		if (connection->session_id() == session_id)
		{
			UT_DEBUGMSG(("connection dropped\n"));
			m_connections.erase(it);
			return;
		}
	}
}

void ServiceAccountHandler::_handleMessages(ConnectionPtr connection)
{
	UT_return_if_fail(connection);

	AbiCollabSessionManager* pManager = AbiCollabSessionManager::getManager();
	UT_return_if_fail(pManager);

	while (connection->queue().peek())
	{
		rpv1::PacketPtr packet = connection->queue().pop();
		UT_continue_if_fail(packet);

		switch (packet->type())
		{
			case rpv1::PACKET_DELIVER:
				{
					UT_DEBUGMSG(("Received a 'Deliver' packet!\n"));
					boost::shared_ptr<rpv1::DeliverPacket> dp =
							boost::static_pointer_cast<rpv1::DeliverPacket>(packet);					
					UT_return_if_fail(dp->getMessage());
				
					boost::shared_ptr<RealmBuddy> buddy_ptr = 
							connection->getBuddy(dp->getConnectionId());
					UT_return_if_fail(buddy_ptr);
				
					Packet* pPacket = _createPacket(*dp->getMessage(), buddy_ptr);
					UT_return_if_fail(pPacket);								

					if (pPacket->getClassType() == PCT_ProtocolErrorPacket)
					{
						// If there is a running async file open action going on, we'll
						// have to abort that...
						if (buddy_ptr->master())
						{
							boost::shared_ptr<PendingDocumentProperties> pdp = connection->getPendingDocProps();
							if (pdp)
							{
								UT_return_if_fail(pdp->pDlg);
								pdp->pDlg->close(true);
								connection->loadDocumentEnd();
							}
						}

						bool b = _handleProtocolError(pPacket, buddy_ptr);
						UT_return_if_fail(b);
						return;
					}

					if (pPacket->getClassType() == PCT_JoinSessionRequestResponseEvent)
					{
						UT_DEBUGMSG(("Trapped a JoinSessionRequestResponseEvent!\n"));
						boost::shared_ptr<PendingDocumentProperties> pdp = connection->getPendingDocProps();
						UT_return_if_fail(pdp);

						UT_DEBUGMSG(("Joining received document...\n"));
						_handleJoinSessionRequestResponse(static_cast<JoinSessionRequestResponseEvent*>(pPacket), buddy_ptr, pdp->pFrame, pdp->pDoc, pdp->filename, pdp->bLocallyOwned);
						DELETEP(pPacket);
						UT_return_if_fail(pdp->pDlg);
						pdp->pDlg->close();
						continue;
					}
					else if (pPacket->getClassType() == PCT_SessionTakeoverRequestPacket)
					{
						UT_DEBUGMSG(("Trapped a SessionTakeoverRequestPacket\n"));
						SessionTakeoverRequestPacket* strp = static_cast<SessionTakeoverRequestPacket*>(pPacket);

						if (strp->promote())
						{
							UT_DEBUGMSG(("We're the new master, informing the realm!\n"));
							boost::shared_ptr<rpv1::SessionTakeOverPacket> stop(new rpv1::SessionTakeOverPacket());
							rpv1::send(*stop, connection->socket(), 
									boost::bind(&ServiceAccountHandler::_write_result, this,
										asio::placeholders::error, asio::placeholders::bytes_transferred, connection,
											boost::static_pointer_cast<rpv1::Packet>(stop))	
								);

							// promote this connection to master
							connection->promote();
						}
						else
						{
							UT_DEBUGMSG(("We're getting a new master!\n"));

							// find the old master, and demote him
							bool found = false;
							std::vector<RealmBuddyPtr> buddies = connection->getBuddies();
							for (std::vector<RealmBuddyPtr>::iterator it = buddies.begin(); it != buddies.end(); it++)
							{
								if ((*it)->master())
								{
									UT_DEBUGMSG(("Demoting buddy %s\n", (*it)->getDescriptor(true).utf8_str()));
									(*it)->demote();
									found = true;
									break;
								}
							}
							UT_continue_if_fail(found);
							UT_continue_if_fail(strp->getBuddyIdentifiers().size() == 1);

							// we accept the new buddy as our new overload!
							// NOTE: constructBuddy won't really construct a new buddy object in this
							// account handler, but will simply return the already existing buddy object
							// with the given buddy identifier
							BuddyPtr pNewMaster = constructBuddy(strp->getBuddyIdentifiers()[0], buddy_ptr);
							UT_continue_if_fail(pNewMaster);
							UT_DEBUGMSG(("Promoting buddy %s\n", pNewMaster->getDescriptor(true).utf8_str()));
							RealmBuddyPtr pB = boost::static_pointer_cast<RealmBuddy>(pNewMaster);
							pB->promote();
						}

						// fall through to handle the packet
					}

					// let the default handler handle this packet
					// NOTE: this will delete the packet as well (ugly design)
					handleMessage(pPacket, buddy_ptr);				
				}
				break;
			case rpv1::PACKET_USERJOINED:
				{
					UT_DEBUGMSG(("Received a 'User Joined' packet!\n"));
					boost::shared_ptr<rpv1::UserJoinedPacket> ujp =
							boost::static_pointer_cast<rpv1::UserJoinedPacket>(packet);
					UT_DEBUGMSG(("User information:\n%s\n", ujp->getUserInfo()->c_str()));

					uint64_t user_id;
					UT_return_if_fail(ServiceAccountHandler::parseUserInfo(*ujp->getUserInfo(), user_id));
					UT_DEBUGMSG(("Adding buddy, uid: %llu, cid: %d\n", user_id, ujp->getConnectionId()));
					RealmBuddyPtr buddy(
								new RealmBuddy(this, user_id, _getDomain(), static_cast<UT_uint8>(ujp->getConnectionId()), ujp->isMaster(), connection));
					connection->addBuddy(buddy);

					if (!connection->master() && ujp->isMaster())
					{
						UT_DEBUGMSG(("Sending join session request to master buddy!\n"));
						JoinSessionRequestEvent event(connection->session_id().c_str());
						send(&event, buddy);
					}
				}
				break;			
			case rpv1::PACKET_USERLEFT:
				{
					UT_DEBUGMSG(("Received a 'User Left' packet!\n"));
					boost::shared_ptr<rpv1::UserLeftPacket> ulp =
							boost::static_pointer_cast<rpv1::UserLeftPacket>(packet);
					RealmBuddyPtr realm_buddy_ptr = connection->getBuddy(ulp->getConnectionId());
					if (!realm_buddy_ptr)
						return; // we don't store slave buddies at the moment, so this happens when a slave disconnects
					UT_DEBUGMSG(("removing %s buddy with connection id %d from all sessions\n", realm_buddy_ptr->master() ? "master" : "slave", realm_buddy_ptr->realm_connection_id()));
					pManager->removeBuddy(realm_buddy_ptr, false);
					connection->removeBuddy(ulp->getConnectionId());
					// if this was the master, then we can close the realm connection
					if (realm_buddy_ptr->master())
					{
						UT_DEBUGMSG(("The master buddy left; disconnecting the realm connection!\n"));
						connection->disconnect();
						return;
					}
				}
				break;
			default:
				UT_DEBUGMSG(("Dropping unrecognized packet on the floor (type: 0x%x)!\n", packet->type()));
				UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
				break;
		}
	}
}

// NOTE: _parseSessionFiles can be called from a thread other than our mainloop;
// Don't let access or modify any data from the mainloop!
void ServiceAccountHandler::_parseSessionFiles(soa::ArrayPtr files_array, GetSessionsResponseEvent& gsre)
{
	UT_return_if_fail(files_array);
	
	if (abicollab::FileArrayPtr files = files_array->construct<abicollab::File>())
	{
		for (size_t i = 0; i < files->size(); i++)
		{
			if (abicollab::FilePtr file = files->operator[](i))
			{
				UT_DEBUGMSG(("Got a file: %s (%s bytes, id: %s)\n", file->filename.c_str(), file->filesize.c_str(), file->doc_id.c_str()));
				// NOTE: we can safely use the (unique) document id as the session identifier, 
				// as there is basically only one _ever lasting_ session for each 
				// document stored on abicollab.net
				if (file->doc_id != "" && file->access == "readwrite") {
					gsre.m_Sessions[file->doc_id.c_str()] = file->filename.c_str();
				}
			}
		}
	}
}

bool ServiceAccountHandler::_splitDescriptor(const std::string& descriptor, uint64_t& user_id, uint8_t& conn_id, std::string& domain)
{
	std::string uri_id = "acn://";

	if (descriptor.compare(0, uri_id.size(), uri_id) != 0)
		return false;

	size_t at_pos = descriptor.find_last_of("@");
	if (at_pos == std::string::npos)
		return false;

	domain = descriptor.substr(at_pos+1);
	std::string user_part = descriptor.substr(uri_id.size(), at_pos - uri_id.size());

	size_t colon_pos = user_part.find_first_of(":");
	if (colon_pos == std::string::npos)
		return false;

	std::string user_id_s = user_part.substr(0, colon_pos);
	std::string conn_id_s = user_part.substr(colon_pos+1);

	UT_return_val_if_fail(user_id_s.size() > 0, false);
	try
	{
		user_id = boost::lexical_cast<uint64_t>(user_id_s);
		conn_id = (uint8_t)(conn_id_s.size() == 0 ? 0 : boost::lexical_cast<uint32_t>(conn_id_s));
	}
	catch (boost::bad_lexical_cast&)
	{
		UT_ASSERT_HARMLESS(UT_SHOULD_NOT_HAPPEN);
		return false;
	}

	return true;
}

std::string ServiceAccountHandler::_getDomain(const std::string& protocol)
{
	std::string uri = getProperty("uri");
	if (!uri.compare(0, protocol.size(), protocol) == 0)
		return "";

	size_t slash_pos = uri.find_first_of("/", protocol.size());
	if (slash_pos == std::string::npos)
		slash_pos = uri.size();
	return uri.substr(protocol.size(), slash_pos-protocol.size());
}

std::string ServiceAccountHandler::_getDomain()
{
	std::string domain = _getDomain("https://");
	if (domain != "")
		return domain;

	domain = _getDomain("http://");
	if (domain != "")
		return domain;

	UT_ASSERT_HARMLESS(UT_SHOULD_NOT_HAPPEN);
	return "";
}
