RetroShare/retroshare-gui/src/gui/RetroShareLink.cpp

/***************************************************************************
 *   Copyright (C) 2009                                                    *
 *                                                                         *
 *   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.             *
 ***************************************************************************/

#include <iostream>
#include <time.h>
#include <QStringList>
#include <QRegExp>
#include <QApplication>
#include <QMimeData>
#include <QClipboard>
#include <QDesktopServices>
#include <QMessageBox>
#include <QIcon>
#include <QObject>
#include <time.h>

#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
#include <QUrlQuery>
#endif

#include "RetroShareLink.h"
#include "MainWindow.h"
#include "gui/gxsforums/GxsForumsDialog.h"
#include "gui/gxschannels/GxsChannelDialog.h"
#include "gui/Posted/PostedDialog.h"
#include "gui/FileTransfer/SearchDialog.h"
#include "msgs/MessageComposer.h"
#include "util/misc.h"
#include "common/PeerDefs.h"
#include "common/RsCollectionFile.h"
#include <gui/common/RsUrlHandler.h>
#include "gui/connect/ConnectFriendWizard.h"
#include "gui/connect/ConfCertDialog.h"
#include "gui/connect/PGPKeyDialog.h"

#include <retroshare/rsfiles.h>
#include <retroshare/rsmsgs.h>
#include <retroshare/rspeers.h>
#include <retroshare/rsidentity.h>
#include <retroshare/rsgxsforums.h>

//#define DEBUG_RSLINK 1

#define HOST_FILE        "file"
#define HOST_EXTRAFILE   "extra"
#define HOST_PERSON      "person"
#define HOST_FORUM       "forum"
#define HOST_CHANNEL     "channel"
#define HOST_POSTED      "posted"
#define HOST_MESSAGE     "message"
#define HOST_SEARCH      "search"
#define HOST_CERTIFICATE "certificate"
#define HOST_PUBLIC_MSG  "public_msg"
#define HOST_IDENTITY    "identity"
#define HOST_REGEXP      "file|extra|person|forum|channel|posted|search|message|certificate|private_chat|public_msg|identity"

#define FILE_NAME       "name"
#define FILE_SIZE       "size"
#define FILE_HASH       "hash"
#define FILE_SOURCE     "src"

#define PERSON_NAME     "name"
#define PERSON_HASH     "hash"

#define FORUM_NAME      "name"
#define FORUM_ID        "id"
#define FORUM_MSGID     "msgid"

#define CHANNEL_NAME    "name"
#define CHANNEL_ID      "id"
#define CHANNEL_MSGID   "msgid"

#define POSTED_NAME    "name"
#define POSTED_ID      "id"
#define POSTED_MSGID   "msgid"

#define IDENTITY_NAME  "name"
#define IDENTITY_ID    "gxsid"
#define IDENTITY_GROUP "groupdata"

#define MESSAGE_ID      "id"
#define MESSAGE_SUBJECT "subject"

#define SEARCH_KEYWORDS          "keywords"

#define CERTIFICATE_SSLID        "sslid"
#define CERTIFICATE_GPG_ID       "gpgid"
#define CERTIFICATE_GPG_BASE64   "gpgbase64"
#define CERTIFICATE_GPG_CHECKSUM "gpgchecksum"
#define CERTIFICATE_LOCATION     "location"
#define CERTIFICATE_NAME         "name"
#define CERTIFICATE_EXT_IPPORT   "extipp"
#define CERTIFICATE_LOC_IPPORT   "locipp"
#define CERTIFICATE_DYNDNS       "dyndns"
#define CERTIFICATE_RADIX        "radix"

#define PUBLIC_MSG_TIME_STAMP  "time_stamp"
#define PUBLIC_MSG_SRC_PGP_ID  "gpgid"
#define PUBLIC_MSG_HASH        "hash"

RetroShareLink::RetroShareLink(const QUrl& url)
{
	fromUrl(url);
}

RetroShareLink::RetroShareLink(const QString& url)
{
	fromString(url);
}

void RetroShareLink::fromString(const QString& url)
{
	clear();

	// parse
#ifdef DEBUG_RSLINK
	std::cerr << "got new RS link \"" << url.toStdString() << "\"" << std::endl ;
#endif

	if ((url.startsWith(QString(RSLINK_SCHEME) + "://" + QString(HOST_FILE)) && url.count("|") == 3) ||
			(url.startsWith(QString(RSLINK_SCHEME) + "://" + QString(HOST_PERSON)) && url.count("|") == 2)) 
	{
		/* Old link, we try it */
		QStringList list = url.split ("|");

		if (list.size() >= 1) {
			if (list.size() == 4 && list[0] == QString(RSLINK_SCHEME) + "://" + QString(HOST_FILE)) {
				bool ok ;

				_type = TYPE_FILE;
				_name = list[1] ;
				_size = list[2].toULongLong(&ok) ;
				_hash = list[3].left(40) ;	// normally not necessary, but it's a security.

				if (ok) {
#ifdef DEBUG_RSLINK
					std::cerr << "New RetroShareLink forged:" << std::endl ;
					std::cerr << "  name = \"" << _name.toStdString() << "\"" << std::endl ;
					std::cerr << "  hash = \"" << _hash.toStdString() << "\"" << std::endl ;
					std::cerr << "  size = " << _size << std::endl ;
#endif
					check();
					return;
				}
			} else if (list.size() == 3 && list[0] == QString(RSLINK_SCHEME) + "://" + QString(HOST_PERSON)) {
				_type = TYPE_PERSON;
				_name = list[1] ;
				_hash = list[2].left(40) ;	// normally not necessary, but it's a security.
				_size = 0;
				check();
				return;
			}

			// bad link
		}
	}

	/* Now try QUrl */
	fromUrl(QUrl::fromEncoded(url.toUtf8().constData()));
}

// Qt 4 and Qt5 use different classes
// to make it work with Qt4 and Qt5, use a template
template<class QUrl_or_QUrlQuery>
QString decodedQueryItemValue(const QUrl_or_QUrlQuery& urlQuery, const QString& key)
{
#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
    // Qt5 needs a additional flag to properly decode everything
    // we have to decode, becaue we want only decoded stuff in our QString
    return urlQuery.queryItemValue(key, QUrl::FullyDecoded);
#else
    return urlQuery.queryItemValue(key);
#endif
}

void RetroShareLink::fromUrl(const QUrl& url)
{
#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
	const QUrlQuery urlQuery(url);
#else
	const QUrl &urlQuery(url);
#endif

	clear();

	// parse
#ifdef DEBUG_RSLINK
	std::cerr << "got new RS link \"" << url.toString().toStdString() << "\"" << std::endl ;
#endif

	if (url.scheme() != RSLINK_SCHEME) {
		/* No RetroShare-Link */
#ifdef DEBUG_RSLINK
		std::cerr << "Not a RS link: scheme=" << url.scheme().toStdString() << std::endl;
#endif
		return;
	}

	if (url.host() == HOST_FILE) {
		bool ok ;

		_type = TYPE_FILE;
        _name = decodedQueryItemValue(urlQuery, FILE_NAME);
		_size = urlQuery.queryItemValue(FILE_SIZE).toULongLong(&ok);
		_hash = urlQuery.queryItemValue(FILE_HASH).left(40);	// normally not necessary, but it's a security.

		if (ok) {
#ifdef DEBUG_RSLINK
			std::cerr << "New RetroShareLink forged:" << std::endl ;
			std::cerr << "  name = \"" << _name.toStdString() << "\"" << std::endl ;
			std::cerr << "  hash = \"" << _hash.toStdString() << "\"" << std::endl ;
			std::cerr << "  size = " << _size << std::endl ;
#endif
			check();
			return;
		}
	}

	if(url.host() == HOST_PUBLIC_MSG) 
	{
		bool ok ;
		_type = TYPE_PUBLIC_MSG ;
		_hash = urlQuery.queryItemValue(PUBLIC_MSG_HASH) ;
		_time_stamp = urlQuery.queryItemValue(PUBLIC_MSG_TIME_STAMP).toUInt(&ok) ;
		_GPGid = urlQuery.queryItemValue(PUBLIC_MSG_SRC_PGP_ID) ;

		check() ;
		return;
	}

	if (url.host() == HOST_EXTRAFILE) {
		bool ok ;

		_type = TYPE_EXTRAFILE;
        _name = decodedQueryItemValue(urlQuery, FILE_NAME);
		_size = urlQuery.queryItemValue(FILE_SIZE).toULongLong(&ok);
		_hash = urlQuery.queryItemValue(FILE_HASH).left(40);	// normally not necessary, but it's a security.
		_SSLid = urlQuery.queryItemValue(FILE_SOURCE);

		if (ok) {
#ifdef DEBUG_RSLINK
			std::cerr << "New RetroShareLink forged:" << std::endl ;
			std::cerr << "  name = \"" << _name.toStdString() << "\"" << std::endl ;
			std::cerr << "  hash = \"" << _hash.toStdString() << "\"" << std::endl ;
			std::cerr << "  size = " << _size << std::endl ;
			std::cerr << "  src  = " << _SSLid.toStdString() << std::endl ;
#endif
			check();
			return;
		}
	}
	if (url.host() == HOST_PERSON) {
		_type = TYPE_PERSON;
        _name = decodedQueryItemValue(urlQuery, PERSON_NAME);
		_hash = urlQuery.queryItemValue(PERSON_HASH).left(40);	// normally not necessary, but it's a security.
		check();
		return;
	}

	if (url.host() == HOST_FORUM) {
		_type = TYPE_FORUM;
        _name = decodedQueryItemValue(urlQuery, FORUM_NAME);
		_hash = urlQuery.queryItemValue(FORUM_ID);
		_msgId = urlQuery.queryItemValue(FORUM_MSGID);
		check();
		return;
	}

	if (url.host() == HOST_CHANNEL) {
		_type = TYPE_CHANNEL;
        _name = decodedQueryItemValue(urlQuery, CHANNEL_NAME);
		_hash = urlQuery.queryItemValue(CHANNEL_ID);
		_msgId = urlQuery.queryItemValue(CHANNEL_MSGID);
		check();
		return;
	}

    if (url.host() == HOST_POSTED) {
        _type = TYPE_POSTED;
        _name = decodedQueryItemValue(urlQuery, POSTED_NAME);
        _hash = urlQuery.queryItemValue(POSTED_ID);
        _msgId = urlQuery.queryItemValue(POSTED_MSGID);
        check();
        return;
    }

	if (url.host() == HOST_SEARCH) {
		_type = TYPE_SEARCH;
        _name = decodedQueryItemValue(urlQuery, SEARCH_KEYWORDS);
		check();
		return;
	}

    if(url.host() == HOST_IDENTITY) {
        _type = TYPE_IDENTITY ;
        QString name = decodedQueryItemValue(urlQuery, IDENTITY_NAME) ;
        QString radix= decodedQueryItemValue(urlQuery, IDENTITY_GROUP) ;
        QString gxsid= urlQuery.queryItemValue(IDENTITY_ID) ;

        RsGxsId id(gxsid.toStdString()) ;

        if(!id.isNull())
			createIdentity(id,name,radix) ;
        else
            std::cerr << "(EE) identity link is not valid." << std::endl;
        return ;
    }

	if (url.host() == HOST_MESSAGE) {
		_type = TYPE_MESSAGE;
		std::string id = urlQuery.queryItemValue(MESSAGE_ID).toStdString();
		createMessage(RsPeerId(id), urlQuery.queryItemValue(MESSAGE_SUBJECT));
		return;
	}

	if (url.host() == HOST_CERTIFICATE) {
		_type = TYPE_CERTIFICATE;
		_radix = decodedQueryItemValue(urlQuery, CERTIFICATE_RADIX);

#ifdef DEBUG_RSLINK
        std::cerr << "Got a certificate link!!" << std::endl;
#endif
		check() ;
		return;
	}
	// bad link

#ifdef DEBUG_RSLINK
	std::cerr << "Wrongly formed RS link. Can't process." << std::endl ;
#endif
	clear();
}

RetroShareLink::RetroShareLink()
{
	clear();
}

bool RetroShareLink::createIdentity(const RsGxsId& id, const QString& name, const QString& radix_data)
{
	clear();

	_name = name;
	_hash = QString::fromStdString(id.toStdString());
    _radix_group_data = radix_data ;

	_type = TYPE_IDENTITY;

	check();

	return valid();
}

bool RetroShareLink::createExtraFile(const QString& name, uint64_t size, const QString& hash,const QString& ssl_id)
{
	clear();

	_name = name;
	_size = size;
	_hash = hash;
	_SSLid = ssl_id;

	_type = TYPE_EXTRAFILE;

	check();

	return valid();
}
bool RetroShareLink::createFile(const QString& name, uint64_t size, const QString& hash)
{
	clear();

	_name = name;
	_size = size;
	_hash = hash;

	_type = TYPE_FILE;

	check();

	return valid();
}

bool RetroShareLink::createPublicMsgInvite(time_t time_stamp,const QString& issuer_pgp_id,const QString& hash) 
{
	clear() ;

	_type = TYPE_PUBLIC_MSG ;
	_time_stamp = time_stamp ;
	_hash = hash ;
	_GPGid = issuer_pgp_id ;

	check() ;

	return valid() ;
}

bool RetroShareLink::createPerson(const RsPgpId& id)
{
	clear();

	RsPeerDetails detail;
	if (rsPeers->getGPGDetails(id, detail) == false) {
		std::cerr << "RetroShareLink::createPerson() Couldn't find peer id " << id << std::endl;
		return false;
	}

	_hash = QString::fromStdString(id.toStdString());
	_name = QString::fromUtf8(detail.name.c_str());

	_type = TYPE_PERSON;

	check();

	return valid();
}

bool RetroShareLink::createCertificate(const RsPeerId& ssl_id)
{
	// This is baaaaaad code:
	// 	- we should not need to parse and re-read a cert in old format.
	//
	RsPeerDetails detail;
	if (rsPeers->getPeerDetails(ssl_id, detail) == false) {
		std::cerr << "RetroShareLink::createPerson() Couldn't find peer id " << ssl_id << std::endl;
		return false;
	}

	_type = TYPE_CERTIFICATE;
	_radix = QString::fromUtf8(rsPeers->GetRetroshareInvite(ssl_id,false).c_str());
	_name = QString::fromUtf8(detail.name.c_str());
	_location = QString::fromUtf8(detail.location.c_str());
	_radix.replace("\n","");

	std::cerr << "Found radix                = " << _radix.toStdString() << std::endl;

	return true;
}

bool RetroShareLink::createUnknwonSslCertificate(const RsPeerId& sslId, const RsPgpId& gpgId)
{
	// first try ssl id
	if (createCertificate(sslId)) {
		if (gpgId.isNull() || _GPGid.toStdString() == gpgId.toStdString()) {
			return true;
		}
		// wrong gpg id
		return false;
	}

	// then gpg id
	if (createPerson(gpgId)) {
		if (!_SSLid.isEmpty()) {
			return false;
		}
		if (sslId.isNull()) {
			return true;
		}
		_SSLid = QString::fromStdString(sslId.toStdString());
		if (_location.isEmpty()) {
			_location = _name;
		}
		return true;
	}

	return false;
}

bool RetroShareLink::createGxsGroupLink(const RetroShareLink::enumType &linkType, const RsGxsGroupId &groupId, const QString &groupName)
{
	clear();

	if (!groupId.isNull()) {
		_hash = QString::fromStdString(groupId.toStdString());
		_type = linkType;
		_name = groupName;
	}

	check();

	return valid();
}

bool RetroShareLink::createGxsMessageLink(const RetroShareLink::enumType &linkType, const RsGxsGroupId &groupId, const RsGxsMessageId &msgId, const QString &msgName)
{
	clear();

	if (!groupId.isNull() && !msgId.isNull()) {
		_hash = QString::fromStdString(groupId.toStdString());
		_msgId = QString::fromStdString(msgId.toStdString());
		_type = linkType;
		_name = msgName;
	}

	check();

	return valid();
}

bool RetroShareLink::createSearch(const QString& keywords)
{
	clear();

	_name = keywords;

	_type = TYPE_SEARCH;

	check();

	return valid();
}

bool RetroShareLink::createMessage(const RsPeerId& peerId, const QString& subject)
{
	clear();

	_hash = QString::fromStdString(peerId.toStdString());
	PeerDefs::rsidFromId(peerId, &_name);
	_subject = subject;

	_type = TYPE_MESSAGE;

	check();

	return valid();
}
bool RetroShareLink::createMessage(const RsGxsId& peerId, const QString& subject)
{
	clear();

	_hash = QString::fromStdString(peerId.toStdString());

	PeerDefs::rsidFromId(peerId, &_name);
	//_name = QString::fromStdString("GXS_id("+peerId.toStdString()+")") ;
	// do something better here!!
	_subject = subject;

	_type = TYPE_MESSAGE;

	check();

	return valid();
}
void RetroShareLink::clear()
{
	_valid = false;
	_type = TYPE_UNKNOWN;
	_subType = 0;
	_hash = "" ;
	_size = 0 ;
	_name = "" ;
	_GPGid = "" ;
	_time_stamp = 0 ;
	_encrypted_chat_info = "" ;
    _radix_group_data = "" ;
}

void RetroShareLink::check()
{
	_valid = true;

	switch (_type) 
	{
		case TYPE_UNKNOWN:
		case TYPE_PRIVATE_CHAT:
			_valid = false;
			break;
		case TYPE_EXTRAFILE:
			if(!checkSSLId(_SSLid))
				_valid = false;			// no break! We also test file stuff below.
		case TYPE_FILE:
			if(_size > (((uint64_t)1)<<40))	// 1TB. Who has such large files?
				_valid = false;

			if(!checkName(_name))
				_valid = false;

			if(!checkHash(_hash))
				_valid = false;
			break;

		case TYPE_PUBLIC_MSG:
			if(!checkHash(_hash)) _valid = false ;
			if(!checkPGPId(_GPGid)) _valid = false ;
			break ;

		case TYPE_IDENTITY:
			if(_name.isNull())
				_valid = false ;

			if(_radix_group_data.isNull())
				_valid = false ;

			if(_hash.isNull())
				_valid = false ;
		break ;

		case TYPE_PERSON:
			if(_size != 0)
				_valid = false;

			if(_name.isEmpty())
				_valid = false;

			if(_hash.isEmpty())
				_valid = false;
			break;
		case TYPE_FORUM:
			if(_size != 0)
				_valid = false;

			if(_name.isEmpty())
				_valid = false;

			if(_hash.isEmpty())
				_valid = false;
			break;
		case TYPE_CHANNEL:
			if(_size != 0)
				_valid = false;

			if(_name.isEmpty())
				_valid = false;

			if(_hash.isEmpty())
				_valid = false;
			break;
    case TYPE_POSTED:
        if(_size != 0)
            _valid = false;

        if(_name.isEmpty())
            _valid = false;

        if(_hash.isEmpty())
            _valid = false;
        break;
		case TYPE_SEARCH:
			if(_size != 0)
				_valid = false;

			if(_name.isEmpty())
				_valid = false;

			if(!_hash.isEmpty())
				_valid = false;
			break;
		case TYPE_MESSAGE:
			if(_size != 0)
				_valid = false;

			if(_hash.isEmpty())
				_valid = false;
			break;
		case TYPE_CERTIFICATE:
			break;
	}

	if (!_valid) {
		clear();
	}
}

QString RetroShareLink::title() const
{
	if (!valid()) {
		return "";
	}

	switch (_type) {
		case TYPE_UNKNOWN:
		case TYPE_PRIVATE_CHAT:
			break;
		case TYPE_PUBLIC_MSG:
			{
				RsPeerDetails detail;
				rsPeers->getGPGDetails(RsPgpId(_GPGid.toStdString()), detail) ;
				return QObject::tr("Click to send a private message to %1 (%2).").arg(QString::fromUtf8(detail.name.c_str())).arg(_GPGid) ;
			}
		case TYPE_EXTRAFILE:
			return QObject::tr("%1 (%2, Extra - Source included)").arg(hash()).arg(misc::friendlyUnit(size()));
		case TYPE_FILE:
			return QString("%1 (%2)").arg(hash()).arg(misc::friendlyUnit(size()));
		case TYPE_IDENTITY:
        	return _name ;

		case TYPE_PERSON:
			return PeerDefs::rsidFromId(RsPgpId(hash().toStdString()));
		case TYPE_FORUM:
		case TYPE_CHANNEL:
        case TYPE_POSTED:
		case TYPE_SEARCH:
			break;
		case TYPE_MESSAGE:
			return PeerDefs::rsidFromId(RsPeerId(hash().toStdString()));
		case TYPE_CERTIFICATE:
			RsPeerDetails details ;
			uint32_t error_code ;

			if(!rsPeers->loadDetailsFromStringCert(_radix.toStdString(),details,error_code))
				return QObject::tr("This cert is malformed. Error code:")+" "+QString::number(error_code) ;
			else
				return QObject::tr("Click to add this RetroShare cert to your PGP keyring\nand open the Make Friend Wizard.\n") 
						+ QString("PGP Id =")+" " + QString::fromStdString(details.gpg_id.toStdString()) + QString("\nSSLId =")+" "+QString::fromStdString(details.id.toStdString());
	}

	return "";
}

static QString encodeItem(QString item)
{
    return QUrl::toPercentEncoding(item);
}

QString RetroShareLink::toString() const
{
	QUrl url;
#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
	QUrlQuery urlQuery;
#else
	QUrl &urlQuery(url);
#endif

	switch (_type) {
		case TYPE_UNKNOWN:
		case TYPE_PRIVATE_CHAT:
			return "";

		case TYPE_FILE:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_FILE);
			urlQuery.addQueryItem(FILE_NAME, encodeItem(_name));
			urlQuery.addQueryItem(FILE_SIZE, QString::number(_size));
			urlQuery.addQueryItem(FILE_HASH, _hash);

			break;

		case TYPE_PUBLIC_MSG:
			url.setScheme(RSLINK_SCHEME) ;
			url.setHost(HOST_PUBLIC_MSG) ;
			urlQuery.addQueryItem(PUBLIC_MSG_TIME_STAMP,QString::number(_time_stamp)) ;
			urlQuery.addQueryItem(PUBLIC_MSG_HASH,_hash) ;
			urlQuery.addQueryItem(PUBLIC_MSG_SRC_PGP_ID,_GPGid) ;

			break;

    	case TYPE_IDENTITY:
        	url.setScheme(RSLINK_SCHEME) ;
        	url.setHost(HOST_IDENTITY) ;
            urlQuery.addQueryItem(IDENTITY_ID,_hash) ;
            urlQuery.addQueryItem(IDENTITY_NAME,encodeItem(_name)) ;
            urlQuery.addQueryItem(IDENTITY_GROUP,encodeItem(_radix_group_data)) ;
        	break ;

		case TYPE_EXTRAFILE:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_EXTRAFILE);
			urlQuery.addQueryItem(FILE_NAME, encodeItem(_name));
			urlQuery.addQueryItem(FILE_SIZE, QString::number(_size));
			urlQuery.addQueryItem(FILE_HASH, _hash);
			urlQuery.addQueryItem(FILE_SOURCE, _SSLid);

			break;

		case TYPE_PERSON:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_PERSON);
			urlQuery.addQueryItem(PERSON_NAME, encodeItem(_name));
			urlQuery.addQueryItem(PERSON_HASH, _hash);

			break;

		case TYPE_FORUM:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_FORUM);
			urlQuery.addQueryItem(FORUM_NAME, encodeItem(_name));
			urlQuery.addQueryItem(FORUM_ID, _hash);
			if (!_msgId.isEmpty()) {
				urlQuery.addQueryItem(FORUM_MSGID, _msgId);
			}

			break;

		case TYPE_CHANNEL:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_CHANNEL);
			urlQuery.addQueryItem(CHANNEL_NAME, encodeItem(_name));
			urlQuery.addQueryItem(CHANNEL_ID, _hash);
			if (!_msgId.isEmpty()) {
				urlQuery.addQueryItem(CHANNEL_MSGID, _msgId);
			}

			break;

    case TYPE_POSTED:
        url.setScheme(RSLINK_SCHEME);
        url.setHost(HOST_POSTED);
        urlQuery.addQueryItem(POSTED_NAME, encodeItem(_name));
        urlQuery.addQueryItem(POSTED_ID, _hash);
        if (!_msgId.isEmpty()) {
            urlQuery.addQueryItem(POSTED_MSGID, _msgId);
        }

        break;

		case TYPE_SEARCH:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_SEARCH);
			urlQuery.addQueryItem(SEARCH_KEYWORDS, encodeItem(_name));

			break;

		case TYPE_MESSAGE:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_MESSAGE);
			urlQuery.addQueryItem(MESSAGE_ID, _hash);
			if (_subject.isEmpty() == false) {
				urlQuery.addQueryItem(MESSAGE_SUBJECT, encodeItem(_subject));
			}

			break;

		case TYPE_CERTIFICATE:
			url.setScheme(RSLINK_SCHEME);
			url.setHost(HOST_CERTIFICATE) ;
			urlQuery.addQueryItem(CERTIFICATE_RADIX, encodeItem(_radix));
			urlQuery.addQueryItem(CERTIFICATE_NAME, encodeItem(_name));
			urlQuery.addQueryItem(CERTIFICATE_LOCATION, encodeItem(_location));
			break;
	}

#if QT_VERSION >= QT_VERSION_CHECK(5,0,0)
	url.setQuery(urlQuery);
	return url.toString(QUrl::EncodeSpaces | QUrl::EncodeUnicode);
#else
	return url.toString().replace(" ","%20");//Seems to be already done with Qt4 but to be sure.
#endif
}

QString RetroShareLink::niceName() const
{
	if (type() == TYPE_PERSON)
		return PeerDefs::rsid(name().toUtf8().constData(), RsPgpId(hash().toStdString()));

	if(type() == TYPE_IDENTITY)
		return QObject::tr("Identity link (name=%1, ID=%2)").arg(_name).arg(_hash) ;

	if(type() == TYPE_PUBLIC_MSG) {
		RsPeerDetails detail;
		rsPeers->getGPGDetails(RsPgpId(_GPGid.toStdString()), detail) ;
		return QObject::tr("Click this link to send a private message to %1 (%2)").arg(QString::fromUtf8(detail.name.c_str())).arg(_GPGid) ;
	}
	if(type() == TYPE_CERTIFICATE) 
	{
		RsPeerDetails details ;
		uint32_t error_code ;

		if(!rsPeers->loadDetailsFromStringCert(_radix.toStdString(),details,error_code))
			return QObject::tr("This cert is malformed. Error code:")+" "+QString::number(error_code) ;
		else
			return QObject::tr("RetroShare Certificate (%1, @%2)").arg(QString::fromUtf8(details.name.c_str()), QString::fromUtf8(details.location.c_str()));	// should add SSL id there
	}

	return name();
}

QString RetroShareLink::toHtml() const
{
	QString html = "<a href=\"" + toString() + "\"";

	QString linkTitle = title();
	if (!linkTitle.isEmpty()) {
		html += " title=\"" + linkTitle + "\"";
	}
	html += ">" + niceName() + "</a>" ;

	return html;
}

QString RetroShareLink::toHtmlFull() const
{
	return QString("<a href=\"") + toString() + "\">" + toString() + "</a>" ;
}

QString RetroShareLink::toHtmlSize() const
{
	QString size = QString("(%1)").arg(misc::friendlyUnit(_size));

	if (type() == TYPE_FILE && RsCollectionFile::isCollectionFile(name())) {
		FileInfo finfo;
		if (rsFiles->FileDetails(RsFileHash(hash().toStdString()), RS_FILE_HINTS_EXTRA | RS_FILE_HINTS_LOCAL, finfo)) {
			RsCollectionFile collection;
			if (collection.load(QString::fromUtf8(finfo.path.c_str()), false)) {
				size += QString(" [%1]").arg(misc::friendlyUnit(collection.size()));
			}
		}
	}
	QString link = QString("<a href=\"%1\">%2</a> <font color=\"blue\">%3</font>").arg(toString()).arg(name()).arg(size);
	return link;
}

bool RetroShareLink::checkName(const QString& name)
{
	if(name == "")
		return false ;

	for(int i=0;i<name.length();++i)
	{
		QChar::Category cat( name[i].category() ) ;

		if(	cat == QChar::Separator_Line
				|| cat == QChar::Other_NotAssigned
		  )
		{
#ifdef DEBUG_RSLINK
			std::cerr <<"Unwanted category " << cat << " at place " << i << " in string \"" << name.toStdString() << "\"" << std::endl ;
#endif
			return false ;
		}
	}

	return true ;
}

QUrl RetroShareLink::toUrl() const
{
	return QUrl::fromEncoded(toString().toUtf8().constData());
}

bool RetroShareLink::checkSSLId(const QString& ssl_id)
{
	if(ssl_id.length() != 32)
		return false ;

	QByteArray qb(ssl_id.toLatin1()) ;

	for(int i=0;i<qb.length();++i)
	{
		unsigned char b(qb[i]) ;

		if(!((b>47 && b<58) || (b>96 && b<103)))
			return false ;
	}

	return true ;
}

bool RetroShareLink::checkPGPId(const QString& pgp_id)
{
	if(pgp_id.length() != 16)
		return false ;

	QByteArray qb(pgp_id.toLatin1()) ;

	for(int i=0;i<qb.length();++i)
	{
		unsigned char b(qb[i]) ;

		if(!((b>47 && b<58) || (b>64 && b<71)))
			return false ;
	}

	return true ;
}

bool RetroShareLink::checkRadix64(const QString& s)
{
	QByteArray qb(s.toLatin1()) ;

	for(int i=0;i<qb.length();++i)
	{
		unsigned char b(qb[i]) ;

		if(!(  (b > 46 && b < 58) || (b > 64 && b < 91) || (b > 96 && b < 123) || b=='+' || b=='='))
		{
			std::cerr << "Character not allowed in radix: " << b << std::endl;
			return false;
		}
	}
	std::cerr << "Radix check: passed" << std::endl;
	return true ;
}

bool RetroShareLink::checkHash(const QString& hash)
{
	if(hash.length() != 40)
		return false ;

	QByteArray qb(hash.toLatin1()) ;

	for(int i=0;i<qb.length();++i)
	{
		unsigned char b(qb[i]) ;

		if(!((b>47 && b<58) || (b>96 && b<103)))
			return false ;
	}

	return true ;
}

static void processList(const QStringList &list, const QString &textSingular, const QString &textPlural, QString &result)
{
	if (list.isEmpty()) {
		return;
	}
	if (list.size() == 1) {
		result += "" + textSingular + ":";
	} else {
		result += "" + textPlural + ":";
	}
	result += "<p style='margin-left: 5px; margin-top: 0px'>";
	QStringList::const_iterator it;
	for (it = list.begin(); it != list.end(); ++it) {
		if (it != list.begin()) {
			result += ", ";
		}
		result += *it;
	}
	result += "</p>";
}

/*static*/ int RetroShareLink::process(const QList<RetroShareLink> &linksIn, uint flag /* = RSLINK_PROCESS_NOTIFY_ALL*/)
{
	QList<RetroShareLink>::const_iterator linkIt;
	flag &= ~RSLINK_PROCESS_NOTIFY_BAD_CHARS ;	// this will be set below when needed

	/* filter dublicate links */
	QList<RetroShareLink> links;
	for (linkIt = linksIn.begin(); linkIt != linksIn.end(); ++linkIt) {
		if (links.contains(*linkIt)) {
			continue;
		}

		links.append(*linkIt);
	}

	if (flag & RSLINK_PROCESS_NOTIFY_ASK) {
		/* ask for some types of link */
		QStringList fileAdd;
		QStringList personAdd;

		for (linkIt = links.begin(); linkIt != links.end(); ++linkIt) {
			const RetroShareLink &link = *linkIt;

			if (link.valid() == false) {
				continue;
			}

			switch (link.type()) {
				case TYPE_UNKNOWN:
				case TYPE_FORUM:
				case TYPE_CHANNEL:
                case TYPE_POSTED:
				case TYPE_SEARCH:
				case TYPE_MESSAGE:
				case TYPE_IDENTITY:
				case TYPE_CERTIFICATE:
				case TYPE_PUBLIC_MSG:
				case TYPE_PRIVATE_CHAT:
					// no need to ask
					break;

				case TYPE_FILE:
				case TYPE_EXTRAFILE:
					fileAdd.append(link.name());
					break;

				case TYPE_PERSON:
					personAdd.append(PeerDefs::rsid(link.name().toUtf8().constData(), RsPgpId(link.hash().toStdString())));
					break;
			}
		}

		QString content;
		if (!fileAdd.isEmpty()) {
			processList(fileAdd, QObject::tr("Add file"), QObject::tr("Add files"), content);
		}

        //if (personAdd.size()) {
        //	processList(personAdd, QObject::tr("Add friend"), QObject::tr("Add friends"), content);
        //}

		if (content.isEmpty() == false) {
			QString question = "<html><body>";
			if (links.size() == 1) {
				question += QObject::tr("Do you want to process the link ?");
			} else {
				question += QObject::tr("Do you want to process %1 links ?").arg(links.size());
			}
			question += "<br><br>" + content + "</body></html>";

			QMessageBox mb(QObject::tr("Confirmation"), question, QMessageBox::Question, QMessageBox::Yes,QMessageBox::No, 0);
			if (mb.exec() == QMessageBox::No) {
				return 0;
			}
		}
	}

	int countInvalid = 0;
	int countUnknown = 0;
	int countFileOpened = 0;
	bool needNotifySuccess = false;

	// file
	QStringList fileAdded;
	QStringList fileExist;

	// person
	QStringList personAdded;
	QStringList personExist;
	QStringList personFailed;
	QStringList personNotFound;

	// forum
	QStringList forumFound;
	QStringList forumMsgFound;
	QStringList forumUnknown;
	QStringList forumMsgUnknown;

	// forum
	QStringList channelFound;
	QStringList channelMsgFound;
	QStringList channelUnknown;
	QStringList channelMsgUnknown;

    // forum
    QStringList postedFound;
    QStringList postedMsgFound;
    QStringList postedUnknown;
    QStringList postedMsgUnknown;

	// search
	QStringList searchStarted;

	// message
	QStringList messageStarted;
	QStringList messageReceipientNotAccepted;
	QStringList messageReceipientUnknown;

	// Certificate
	//QStringList GPGBase64Strings ;
	//QStringList SSLIds ;

	// summary
	QList<QStringList*> processedList;
	QList<QStringList*> errorList;

    processedList << &fileAdded << &personAdded << &forumFound << &channelFound << &postedFound << &searchStarted << &messageStarted;
    errorList << &fileExist << &personExist << &personFailed << &personNotFound << &forumUnknown << &forumMsgUnknown << &channelUnknown << &channelMsgUnknown << &postedUnknown << &postedMsgUnknown << &messageReceipientNotAccepted << &messageReceipientUnknown;
	// not needed: forumFound, channelFound, messageStarted

	for (linkIt = links.begin(); linkIt != links.end(); ++linkIt) {
		const RetroShareLink &link = *linkIt;

		if (link.valid() == false) {
			std::cerr << " RetroShareLink::process invalid request" << std::endl;
			++countInvalid;
			continue;
		}

		switch (link.type()) 
		{
			case TYPE_UNKNOWN:
				++countUnknown;
			break;

			case TYPE_CERTIFICATE:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process certificate." << std::endl;
#endif
					needNotifySuccess = true;

					std::cerr << "Usign this certificate:" << std::endl;
					std::cerr << link.radix().toStdString() << std::endl;

					ConnectFriendWizard connectFriendWizard;
					connectFriendWizard.setCertificate(link.radix(), (link.subType() == RSLINK_SUBTYPE_CERTIFICATE_USER_REQUEST) ? true : false);
					connectFriendWizard.exec();
					needNotifySuccess = false;
				}
			break ;

			case TYPE_PUBLIC_MSG:
				{
					std::cerr << "(!!) Distant messages from links is disabled for now" << std::endl;
					//		std::cerr << "Opening a public msg window " << std::endl;
					//		std::cerr << "      time_stamp = " << link._time_stamp << std::endl;
					//		std::cerr << "      hash       = " << link._hash.toStdString() << std::endl;
					//		std::cerr << "      Issuer Id  = " << link._GPGid.toStdString() << std::endl;
					//
					//		if(link._time_stamp < time(NULL))
					//		{
					//			QMessageBox::information(NULL,QObject::tr("Messaging link is expired"),QObject::tr("This Messaging link is expired. The destination peer will not receive it.")) ;
					//			break ;
					//		}
					//
					//		 MessageComposer::msgDistantPeer(link._hash.toStdString(),link._GPGid.toStdString()) ;
				}
			break ;

        	case TYPE_IDENTITY:
        	{
            	if(rsIdentity->deserialiseIdentityFromMemory(link.radixGroupData().toStdString()))
                    QMessageBox::information(NULL,QObject::tr("Identity added to People"),QObject::tr("The identity was added to people. You can now chat with it, send messages to it, etc.")) ;
                else
                    QMessageBox::warning(NULL,QObject::tr("Identity cannot be added to People"),QObject::tr("The identity was not added to people. Some error occured. The link is probably corrupted.")) ;
        	}
            break;

			case TYPE_FILE:
			case TYPE_EXTRAFILE:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process FileRequest : fileName : " << link.name().toUtf8().constData() << ". fileHash : " << link.hash().toStdString() << ". fileSize : " << link.size() << std::endl;
#endif

					needNotifySuccess = true;
					std::list<RsPeerId> srcIds;

					// Add the link built-in source. This is needed for EXTRA files, where the source is specified in the link.

					if(link.type() == TYPE_EXTRAFILE)
					{
#ifdef DEBUG_RSLINK
						std::cerr << " RetroShareLink::process Adding built-in source " << link.SSLId().toStdString() << std::endl;
#endif
						srcIds.push_back(RsPeerId(link.SSLId().toStdString())) ;
					}

					// Get a list of available direct sources, in case the file is browsable only.
					//
					FileInfo finfo ;
					rsFiles->FileDetails(RsFileHash(link.hash().toStdString()), RS_FILE_HINTS_REMOTE, finfo) ;

					for(std::list<TransferInfo>::const_iterator it(finfo.peers.begin());it!=finfo.peers.end();++it)
					{
#ifdef DEBUG_RSLINK
						std::cerr << "  adding peerid " << (*it).peerId << std::endl ;
#endif
						srcIds.push_back((*it).peerId) ;
					}

					QString cleanname = link.name() ;
					static const QString bad_chars_str = "/\\\"*:?<>|" ;

					for(int i=0;i<cleanname.length();++i)
						for(int j=0;j<bad_chars_str.length();++j)
							if(cleanname[i] == bad_chars_str[j])
							{
								cleanname[i] = '_';
								flag |= RSLINK_PROCESS_NOTIFY_BAD_CHARS ;
							}

					bool bFileOpened = false;
					FileInfo fi;
					if (rsFiles->alreadyHaveFile(RsFileHash(link.hash().toStdString()), fi)) {
						/* make path for downloaded file */
						std::string path;
						path = fi.path;//Shared files has path with filename included
						if (fi.downloadStatus == FT_STATE_COMPLETE)
							path = fi.path + "/" + fi.fname;

						QFileInfo qinfo;
						qinfo.setFile(QString::fromUtf8(path.c_str()));
						if (qinfo.exists() && qinfo.isFile()) {
							QString question = "<html><body>";
							question += QObject::tr("Warning: Retroshare is about to ask your system to open this file. ");
							question += QObject::tr("Before you do so, please make sure that this file does not contain malicious executable code.");
							question += "<br><br>" + cleanname + "</body></html>";

							QMessageBox mb(QObject::tr("Confirmation"), question, QMessageBox::Warning, QMessageBox::Yes,QMessageBox::No, 0);
							if (mb.exec() == QMessageBox::Yes) {
								++countFileOpened;
								bFileOpened = true;
								/* open file with a suitable application */
								if (!RsUrlHandler::openUrl(QUrl::fromLocalFile(qinfo.absoluteFilePath()))) {
									std::cerr << "RetroShareLink::process(): can't open file " << path << std::endl;
								}
							}
						}
					}

					if (rsFiles->FileRequest(cleanname.toUtf8().constData(), RsFileHash(link.hash().toStdString()), link.size(), "", RS_FILE_REQ_ANONYMOUS_ROUTING, srcIds)) {
						fileAdded.append(link.name());
					} else {
						if (!bFileOpened) fileExist.append(link.name());
					}
				}
			break;

			case TYPE_PERSON:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process FriendRequest : name : " << link.name().toStdString() << ". id : " << link.hash().toStdString() << std::endl;
#endif

                    RsPeerDetails detail;
                    if (rsPeers->getGPGDetails(RsPgpId(link.hash().toStdString()), detail))
                        PGPKeyDialog::showIt(detail.gpg_id,PGPKeyDialog::PageDetails) ;
                    else
                        personNotFound.append(PeerDefs::rsid(link.name().toUtf8().constData(), RsPgpId(link.hash().toStdString())));

//					needNotifySuccess = true;

//					RsPeerDetails detail;
//					if (rsPeers->getGPGDetails(RsPgpId(link.hash().toStdString()), detail))
//					{
//						if (RsPgpId(detail.gpg_id) == rsPeers->getGPGOwnId()) {
//							// it's me, do nothing
//							break;
//						}
//
//						if (detail.accept_connection) {
//							// peer connection is already accepted
//							personExist.append(PeerDefs::rsid(detail));
//							break;
//						}
//
//						if (rsPeers->addFriend(RsPeerId(), RsPgpId(link.hash().toStdString()))) {
//							ConfCertDialog::loadAll();
//							personAdded.append(PeerDefs::rsid(detail));
//							break;
//						}
//
//						personFailed.append(PeerDefs::rsid(link.name().toUtf8().constData(), RsPgpId(link.hash().toStdString())));
//						break;
//					}
//
//					personNotFound.append(PeerDefs::rsid(link.name().toUtf8().constData(), RsPgpId(link.hash().toStdString())));
				}
			break;


			case TYPE_FORUM:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process ForumRequest : name : " << link.name().toStdString() << ". id : " << link.hash().toStdString() << ". msgId : " << link.msgId().toStdString() << std::endl;
#endif

					MainWindow::showWindow(MainWindow::Forums);
					GxsForumsDialog *forumsDialog = dynamic_cast<GxsForumsDialog*>(MainWindow::getPage(MainWindow::Forums));
					if (!forumsDialog) {
						return false;
					}

					if (forumsDialog->navigate(RsGxsGroupId(link.id().toStdString()), RsGxsMessageId(link.msgId().toStdString()))) {
						if (link.msgId().isEmpty()) {
							forumFound.append(link.name());
						} else {
							forumMsgFound.append(link.name());
						}
					} else {
						if (link.msgId().isEmpty()) {
							forumUnknown.append(link.name());
						} else {
							forumMsgUnknown.append(link.name());
						}
					}
				}
			break;

			case TYPE_CHANNEL:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process ChannelRequest : name : " << link.name().toStdString() << ". id : " << link.hash().toStdString() << ". msgId : " << link.msgId().toStdString() << std::endl;
#endif

					MainWindow::showWindow(MainWindow::Channels);
					GxsChannelDialog *channelDialog = dynamic_cast<GxsChannelDialog*>(MainWindow::getPage(MainWindow::Channels));
					if (!channelDialog) {
						return false;
					}

					if (channelDialog->navigate(RsGxsGroupId(link.id().toStdString()), RsGxsMessageId(link.msgId().toStdString()))) {
						if (link.msgId().isEmpty()) {
							channelFound.append(link.name());
						} else {
							channelMsgFound.append(link.name());
						}
					} else {
						if (link.msgId().isEmpty()) {
							channelUnknown.append(link.name());
						} else {
							channelMsgUnknown.append(link.name());
						}
					}
				}
			break;


        case TYPE_POSTED:
            {
#ifdef DEBUG_RSLINK
                std::cerr << " RetroShareLink::process PostedRequest : name : " << link.name().toStdString() << ". id : " << link.hash().toStdString() << ". msgId : " << link.msgId().toStdString() << std::endl;
#endif

                MainWindow::showWindow(MainWindow::Posted);
                PostedDialog *postedDialog = dynamic_cast<PostedDialog*>(MainWindow::getPage(MainWindow::Posted));

                if (!postedDialog) {
                    return false;
                }

                if (postedDialog->navigate(RsGxsGroupId(link.id().toStdString()), RsGxsMessageId(link.msgId().toStdString()))) {
                    if (link.msgId().isEmpty()) {
                        postedFound.append(link.name());
                    } else {
                        postedMsgFound.append(link.name());
                    }
                } else {
                    if (link.msgId().isEmpty()) {
                        postedUnknown.append(link.name());
                    } else {
                        postedMsgUnknown.append(link.name());
                    }
                }
            }
        break;

			case TYPE_SEARCH:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process SearchRequest : string : " << link.name().toStdString() << std::endl;
#endif
					SearchDialog *searchDialog = dynamic_cast<SearchDialog*>(MainWindow::getPage(MainWindow::Search));
					if (!searchDialog) 
					{
						std::cerr << "Retrieve of search dialog failed. Please debug!" << std::endl;
						break;
					}

					MainWindow::showWindow(MainWindow::Search);
					searchDialog->searchKeywords(link.name());
					searchStarted.append(link.name());
				}
			break;

			case TYPE_MESSAGE:
				{
#ifdef DEBUG_RSLINK
					std::cerr << " RetroShareLink::process MessageRequest : id : " << link.hash().toStdString() << ", subject : " << link.name().toStdString() << std::endl;
#endif
					RsPeerDetails detail;

					// This is awful, but apparently the hash can be multiple different types. Let's check!

					RsPeerId  ssl_id(link.hash().toStdString()) ;

					if(!ssl_id.isNull() && rsPeers->getPeerDetails(ssl_id,detail) && detail.accept_connection)
					{
						MessageComposer *msg = MessageComposer::newMsg();
						msg->addRecipient(MessageComposer::TO, detail.id);
						if (link.subject().isEmpty() == false) {
							msg->setTitleText(link.subject());
						}
						msg->show();
						messageStarted.append(PeerDefs::nameWithLocation(detail));
						break ;
					}

					RsIdentityDetails gxs_details ;
					RsGxsId gxs_id(link.hash().toStdString()) ;

					if(!gxs_id.isNull() && rsIdentity->getIdDetails(gxs_id,gxs_details))
					{
						if(gxs_details.mFlags & RS_IDENTITY_FLAGS_IS_OWN_ID)
						{
							QMessageBox::warning(NULL,QString("Cannot send message to yourself"),QString("This identity is owned by you. You wouldn't want to send yourself a message right?"));
							break ;
						}

						MessageComposer *msg = MessageComposer::newMsg();
						msg->addRecipient(MessageComposer::TO, gxs_id) ;

						if (link.subject().isEmpty() == false) 
							msg->setTitleText(link.subject());
						
						msg->show();
						messageStarted.append(PeerDefs::nameWithLocation(gxs_details));

						break ;
					}
					messageReceipientUnknown.append(PeerDefs::rsidFromId(RsPeerId(link.hash().toStdString())));
				}
			break;

			default:
				std::cerr << " RetroShareLink::process unknown type: " << link.type() << std::endl;
				++countUnknown;
		}
	}

	int countProcessed = 0;
	int countError = 0;

	QList<QStringList*>::iterator listIt;
	for (listIt = processedList.begin(); listIt != processedList.end(); ++listIt) {
		countProcessed += (*listIt)->size();
	}
	for (listIt = errorList.begin(); listIt != errorList.end(); ++listIt) {
		countError += (*listIt)->size();
	}

	// success notify needed ?
	if (needNotifySuccess == false) {
		flag &= ~RSLINK_PROCESS_NOTIFY_SUCCESS;
	}
	// error notify needed ?
	if (countError == 0) {
		flag &= ~RSLINK_PROCESS_NOTIFY_ERROR;
	}

	QString result;

	if (flag & (RSLINK_PROCESS_NOTIFY_SUCCESS | RSLINK_PROCESS_NOTIFY_ERROR)) {
		result += (links.count() == 1 ? QObject::tr("%1 of %2 RetroShare link processed.") : QObject::tr("%1 of %2 RetroShare links processed.")).arg(countProcessed).arg(links.count()) + "<br><br>";
	}

	// file
	if (flag & RSLINK_PROCESS_NOTIFY_SUCCESS) {
		if (!fileAdded.isEmpty()) {
			processList(fileAdded, QObject::tr("File added"), QObject::tr("Files added"), result);
		}
	}
	if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
		if (!fileExist.isEmpty()) {
			processList(fileExist, QObject::tr("File exist"), QObject::tr("Files exist"), result);
		}
	}

	// person
	if (flag & RSLINK_PROCESS_NOTIFY_SUCCESS) {
		if (!personAdded.isEmpty()) {
			processList(personAdded, QObject::tr("Friend added"), QObject::tr("Friends added"), result);
		}
	}
	if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
		if (!personExist.isEmpty()) {
			processList(personExist, QObject::tr("Friend exist"), QObject::tr("Friends exist"), result);
		}
		if (!personFailed.isEmpty()) {
			processList(personFailed, QObject::tr("Friend not added"), QObject::tr("Friends not added"), result);
		}
		if (!personNotFound.isEmpty()) {
			processList(personNotFound, QObject::tr("Friend not found"), QObject::tr("Friends not found"), result);
		}
	}

	// forum
	if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
		if (!forumUnknown.isEmpty()) {
			processList(forumUnknown, QObject::tr("Forum not found"), QObject::tr("Forums not found"), result);
		}
		if (!forumMsgUnknown.isEmpty()) {
			processList(forumMsgUnknown, QObject::tr("Forum message not found"), QObject::tr("Forum messages not found"), result);
		}
	}

	// channel
	if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
		if (!channelUnknown.isEmpty()) {
			processList(channelUnknown, QObject::tr("Channel not found"), QObject::tr("Channels not found"), result);
		}
		if (!channelMsgUnknown.isEmpty()) {
			processList(channelMsgUnknown, QObject::tr("Channel message not found"), QObject::tr("Channel messages not found"), result);
		}
	}

    // posted
    if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
        if (!postedUnknown.isEmpty()) {
            processList(postedUnknown, QObject::tr("Posted not found"), QObject::tr("Posted not found"), result);
        }
        if (!postedMsgUnknown.isEmpty()) {
            processList(postedMsgUnknown, QObject::tr("Posted message not found"), QObject::tr("Posted messages not found"), result);
        }
    }

	// message
	if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
		if (!messageReceipientNotAccepted.isEmpty()) {
			processList(messageReceipientNotAccepted, QObject::tr("Recipient not accepted"), QObject::tr("Recipients not accepted"), result);
		}
		if (!messageReceipientUnknown.isEmpty()) {
			processList(messageReceipientUnknown, QObject::tr("Unkown recipient"), QObject::tr("Unkown recipients"), result);
		}
	}

	if (flag & RSLINK_PROCESS_NOTIFY_ERROR) {
		if (countUnknown) {
			result += QString("<br>%1: %2").arg(QObject::tr("Malformed links")).arg(countUnknown);
		}
		if (countInvalid) {
			result += QString("<br>%1: %2").arg(QObject::tr("Invalid links")).arg(countInvalid);
		}
	}
	if(flag & RSLINK_PROCESS_NOTIFY_BAD_CHARS)
		result += QString("<br>%1").arg(QObject::tr("Warning: forbidden characters found in filenames. \nCharacters <b>\",|,/,\\,&lt;,&gt;,*,?</b> will be replaced by '_'.")) ;

	if ((result.isEmpty() == false) && (links.count() > countFileOpened)) { //Don't count files opened
		QMessageBox mb(QObject::tr("Result"), "<html><body>" + result + "</body></html>", QMessageBox::Information, QMessageBox::Ok, 0, 0);
		mb.exec();
	}


	return 0;
}

/*static*/ int RetroShareLink::process(const QStringList &urls, RetroShareLink::enumType type /* = RetroShareLink::TYPE_UNKNOWN*/, uint flag /* = RSLINK_PROCESS_NOTIFY_ALL*/)
{
	QList<RetroShareLink> links;

	for (QStringList::const_iterator it = urls.begin(); it != urls.end(); ++it) {
		RetroShareLink link(*it);
		if (link.valid() && (type == RetroShareLink::TYPE_UNKNOWN || link.type() == type)) {
			links.append(link);
		}
	}

	return process(links, flag);
}

void RSLinkClipboard::copyLinks(const QList<RetroShareLink>& links)
{
	QString res ;
	for (int i = 0; i < links.size(); ++i)
		res += links[i].toString() + "\n" ;

	QApplication::clipboard()->setText(res) ;
}

void RSLinkClipboard::pasteLinks(QList<RetroShareLink> &links)
{
	return parseClipboard(links);
}

void RSLinkClipboard::parseClipboard(QList<RetroShareLink> &links)
{
	// parse clipboard for links.
	//
	QString text = QApplication::clipboard()->text() ;
	parseText(text, links);
}

QString RSLinkClipboard::toString()
{
	QList<RetroShareLink> links;
	parseClipboard(links);

	QString res ;
	for(int i = 0; i < links.size(); ++i)
		res += links[i].toString() + "\n" ;

	return res ;
}

QString RSLinkClipboard::toHtml()
{
	QList<RetroShareLink> links;
	parseClipboard(links);

	QString res ;
	for(int i = 0; i < links.size(); ++i)
		res += links[i].toHtml() + "<br>" ;

	return res ;
}

bool RSLinkClipboard::empty(RetroShareLink::enumType type /* = RetroShareLink::TYPE_UNKNOWN*/)
{
	QList<RetroShareLink> links;
	parseClipboard(links);

	if (type == RetroShareLink::TYPE_UNKNOWN) {
		return links.empty();
	}

	for (QList<RetroShareLink>::iterator link = links.begin(); link != links.end(); ++link) {
		if (link->type() == type) {
			return false;
		}
	}

	return true;
}

/*static*/ int RSLinkClipboard::process(RetroShareLink::enumType type /* = RetroShareLink::TYPE_UNKNOWN*/, uint flag /* = RSLINK_PROCESS_NOTIFY_ALL*/)
{
	QList<RetroShareLink> links;
	pasteLinks(links);

	QList<RetroShareLink> linksToProcess;
	for (int i = 0; i < links.size(); ++i) {
		if (links[i].valid() && (type == RetroShareLink::TYPE_UNKNOWN || links[i].type() == type)) {
			linksToProcess.append(links[i]);
		}
	}

	if (linksToProcess.isEmpty()) {
		return 0;
	}

	return RetroShareLink::process(linksToProcess, flag);
}

void RSLinkClipboard::parseText(QString text, QList<RetroShareLink> &links)
{
	links.clear();

	std::cerr << "Parsing text:" << text.toStdString() << std::endl ;

	QRegExp rx(QString("retroshare://(%1)[^\r\n]+").arg(HOST_REGEXP));

	int pos = 0;

	while((pos = rx.indexIn(text, pos)) != -1)
	{
		QString url(text.mid(pos, rx.matchedLength()));
		RetroShareLink link(url);

		if(link.valid())
		{
			// check that the link is not already in the list:
			bool already = false ;
			for (int i = 0; i <links.size(); ++i)
				if(links[i] == link)
				{
					already = true ;
					break ;
				}

			if(!already)
			{
				links.push_back(link) ;
#ifdef DEBUG_RSLINK
				std::cerr << "captured link: " << link.toString().toStdString() << std::endl ;
#endif
			}
		}
#ifdef DEBUG_RSLINK
		else
			std::cerr << "invalid link" << std::endl ;
#endif

		pos += rx.matchedLength();
	}
}