xca/lib/db_x509.cpp

/* vi: set sw=4 ts=4:
 *
 * Copyright (C) 2001 - 2014 Christian Hohnstaedt.
 *
 * All rights reserved.
 */

#include "db_x509.h"
#include "pki_pkcs12.h"
#include "pki_pkcs7.h"
#include "pki_evp.h"
#include "pki_scard.h"
#include "pass_info.h"
#include "widgets/CertDetail.h"
#include "widgets/CertExtend.h"
#include "widgets/ExportDialog.h"
#include "widgets/MainWindow.h"
#include "widgets/PwDialog.h"
#include "widgets/RevocationList.h"
#include "ui_TrustState.h"
#include "ui_CaProperties.h"
#include "ui_About.h"
#include <QMessageBox>
#include <QContextMenuEvent>
#include <QAction>

bool db_x509::treeview = true;

db_x509::db_x509(QString DBfile, MainWindow *mw)
	:db_x509super(DBfile, mw)
{
	rootItem->setIntName("[x509 root]");
	class_name = "certificates";
	pkitype << x509;
	updateHeaders();
	loadContainer();
}

void db_x509::updateAfterCrlLoad(pki_x509 *pki)
{
	if (pki->revList.merged) {
		updatePKI(pki);
		pki->revList.merged = false;
	}
}

void db_x509::updateAfterDbLoad()
{
	FOR_ALL_pki(pki, pki_x509) {
		updateAfterCrlLoad(pki);
	}
}

dbheaderList db_x509::getHeaders()
{
	dbheaderList h = db_x509super::getHeaders();
	h <<	new dbheader(HD_cert_ca,	true, tr("CA"),
			tr("reflects the basic Constraints extension")) <<
		new dbheader(HD_cert_serial,	true, tr("Serial")) <<
		new dbheader(HD_cert_md5fp,	false,tr("MD5 fingerprint")) <<
		new dbheader(HD_cert_sha1fp,	false,tr("SHA1 fingerprint")) <<
		new dbheader(HD_cert_sha256fp,	false,tr("SHA256 fingerprint")) <<
		new dbheader(HD_cert_notBefore, false,tr("Start date"),
				tr("Not before")) <<
		new dbheader(HD_cert_notAfter,	true, tr("Expiry date"),
				tr("Not after")) <<
		new dbheader(HD_cert_trust,	false,tr("Trust state")) <<
		new dbheader(HD_cert_revocation,false, tr("Revocation")) <<
		new dbheader(HD_cert_crl_expire,true, tr("CRL Expiration"));
	return h;
}

pki_base *db_x509::newPKI(db_header_t *)
{
	return new pki_x509();
}

pki_x509 *db_x509::findSigner(pki_x509 *client)
{
	pki_x509 *signer;
	if ((signer = client->getSigner()) != NULL)
		return signer;
	// first check for self-signed
	if (client->verify(client)) {
		return client;
	}
	FOR_ALL_pki(pki, pki_x509) {
		if (client->verify(pki)) {
			return pki;
		}
	}
	return NULL;
}

QStringList db_x509::getPrivateDesc()
{
	QStringList x;
	FOR_ALL_pki(pki, pki_x509)
		if (pki->getRefKey())
			x.append(pki->getIntName());
	return x;
}

QStringList db_x509::getSignerDesc()
{
	QStringList x;
	FOR_ALL_pki(pki, pki_x509)
		if (pki->canSign())
			x.append(pki->getIntName());
	return x;
}


void db_x509::remFromCont(QModelIndex &idx)
{
	int row;
	pki_base *pki = static_cast<pki_base*>(idx.internalPointer());
	pki_base *parent_pki = pki->getParent();
	row = pki->row();
	pki_x509 *child;
	pki_base *new_parent;
	QModelIndex new_idx;

	beginRemoveRows(parent(idx), row, row);
	parent_pki->takeChild(pki);
	endRemoveRows();

	while (pki->childCount()) {
		child = (pki_x509*)pki->childItems.takeFirst();
		child->delSigner((pki_x509*)pki);
		new_parent = findSigner(child);
		insertChild(new_parent, child);
	}
	mainwin->crls->removeSigner(pki);
	pki_key *pub = ((pki_x509*)pki)->getPubKey();
	if (pub) {
		if (mainwin->certs->findByPubKey(pub).count() == 0) {
			QList<pki_x509super *> reqs;
			reqs = mainwin->reqs->findByPubKey(pub);
			foreach(pki_x509super *r, reqs)
				((pki_x509req*)r)->setDone(false);
		}
		delete pub;
	}
	return;
}

void db_x509::changeView()
{
	pki_base *temproot;
	int rows = rowCount(QModelIndex());

	if (!rows)
		return;

	temproot = new pki_base();
	beginRemoveRows(QModelIndex(), 0, rows -1);
	pki_base *pki = rootItem;
	pki_base *parent;
	while(pki->childCount()) {
		pki = pki->takeFirst();
		while(pki != rootItem && !pki->childCount()) {
			parent = pki->getParent();
			temproot->append(pki);
			pki = parent;
		}
	}
	endRemoveRows();

	treeview = !treeview;
	if (treeview)
		mainwin->BNviewState->setText(tr("Plain View"));
	else
		mainwin->BNviewState->setText(tr("Tree View"));

	while ((temproot->childCount())) {
		pki = temproot->takeFirst();
		inToCont(pki);
	}
	delete temproot;
}

void db_x509::calcEffTrust()
{
	FOR_ALL_pki(pki, pki_x509)
		pki->calcEffTrust();
}

static bool recursiveSigning(pki_x509 *cert, pki_x509 *client)
{
	/* recursive signing check */
	for (pki_x509 *s = cert->getSigner(); s; s = s->getSigner()) {
		if (s == s->getSigner()) {
			return false;
		}
		if (s == client) {
			printf("Recursive signing: '%s' <-> '%s'\n",
				CCHAR(s->getIntName()),
				CCHAR(cert->getIntName()));
			return true;
		}
	}
	return false;
}

void db_x509::inToCont(pki_base *pki)
{
	pki_x509 *cert = (pki_x509*)pki;
	cert->setParent(NULL);
	cert->delSigner(cert->getSigner());
	findSigner(cert);
	pki_base *root = cert->getSigner();
	if (!treeview || root == cert || root == NULL)
		root = rootItem;

	insertChild(root, cert);

	QList<pki_x509 *> childs;
	/* Search for another certificate (name and key)
	 * and use its childs if we are newer */
	FOR_ALL_pki(client, pki_x509) {
		if (client == cert)
			continue;
		if (!client->compareNameAndKey(cert))
			continue;
		if (cert->getNotAfter() < client->getNotAfter())
			continue;
		foreach(pki_base *_child, client->childItems) {
			pki_x509 *child = static_cast<pki_x509*>(_child);
			child->delSigner(client);
			childs << child;
		}
	}
	/* Search rootItem childs, whether they are ours */
	foreach(pki_base *_child, rootItem->childItems) {
		pki_x509 *child = static_cast<pki_x509*>(_child);
		if (child == cert || child->getSigner() == child)
			continue;
		if (child->verify_only(cert))
			childs << child;
	}
	/* move collected childs to us */
	foreach(pki_x509 *child, childs) {
		int row;
		if (recursiveSigning(cert, child))
			continue;
		if (!child->verify(cert))
			continue;
		row = child->row();
		beginRemoveRows(index(child), row, row);
		child->getParent()->takeChild(child);
		endRemoveRows();
		if (treeview)
			insertChild(cert, child);
		else
			insertChild(rootItem, child);
	}
	findKey(cert);
	pki_key *pub = cert->getPubKey();
	if (pub) {
		QList<pki_x509super *> reqs = mainwin->reqs->findByPubKey(pub);
		delete pub;

		foreach(pki_x509super *r, reqs) {
			((pki_x509req*)r)->setDone();
		}
	}
	calcEffTrust();
}

pki_x509 *db_x509::getBySubject(const x509name &xname, pki_x509 *last)
{
	bool lastfound = false;
	if (last == NULL) lastfound = true;

	FOR_ALL_pki(pki, pki_x509) {
		if ( pki->getSubject() ==  xname) {
			if (lastfound) {
				return pki;
			}
		}
		if (pki == last) {
			lastfound = true;
		}
	}
	return NULL;
}

void db_x509::writeAllCerts(const QString fname, bool onlyTrusted)
{
	bool append = false;
	FOR_ALL_pki(pki, pki_x509) {
		if (onlyTrusted && pki->getTrust() != 2) continue;
		pki->writeCert(fname.toLatin1(), true, append);
		append = true;
	}
}

QList<pki_x509*> db_x509::getCerts(bool onlyTrusted)
{
	QList<pki_x509*> c;
	c.clear();
	FOR_ALL_pki(pki, pki_x509) {
		if (onlyTrusted && pki->getTrust() != 2) continue;
		c.append(pki);
	}
	return c;
}

void db_x509::writeIndex(const QString fname, bool hierarchy)
{
	bool append = false;
	if (hierarchy) {
		FOR_ALL_pki(pki, pki_x509) {
			if (pki->childCount()) {

				QString newfname = fname + "." + pki->getIntName().replace(QRegExp("[^a-zA-Z0-9]"),QString(""));;

				append = false;
				foreach(pki_base *_child, pki->childItems) {
					pki_x509 *child = static_cast<pki_x509*>(_child);
					child->writeIndexEntry(newfname, append);
					append = true;
				}
			}
		}
	} else {
		FOR_ALL_pki(pki, pki_x509) {
			pki->writeIndexEntry(fname, append);
			append = true;
		}
	}
}

a1int db_x509::searchSerial(pki_x509 *signer)
{
	// returns the highest certificate serial
	// of all certs with this signer (itself too)
	a1int sserial, myserial;
	if (!signer)
		return sserial;
	sserial = signer->getCaSerial();
	FOR_ALL_pki(pki, pki_x509)
		if (pki->getSigner() == signer)  {
			myserial = pki->getSerial();
			if (sserial < myserial) {
				sserial = myserial;
			}
		}
	return sserial;
}

a1int db_x509::getUniqueSerial(pki_x509 *signer)
{
	// returnes an unused unique serial
	a1int serial;
	x509rev rev;
	while (true) {
		serial = signer->getIncCaSerial();
		rev.setSerial(serial);
		if (signer->revList.contains(rev))
			continue;
		if (signer->getBySerial(serial))
			continue;
		break;
	}
	if (!signer->usesRandomSerial())
		updatePKI(signer);
	return serial;
}

pki_base *db_x509::insert(pki_base *item)
{
	pki_x509 *cert = (pki_x509 *)item;
	pki_x509 *oldcert = (pki_x509 *)getByReference(cert);
	if (oldcert) {
		XCA_INFO(tr("The certificate already exists in the database as:\n'%1'\nand so it was not imported").arg(oldcert->getIntName()));
		delete(cert);
		return NULL;
	}
	cert->setCaSerial((cert->getSerial()));
	insertPKI(cert);
	a1int serial;

	// check the CA serial of the CA of this cert to avoid serial doubles
	if (cert->getSigner() != cert && cert->getSigner()) {
		serial = cert->getSerial();
		if (cert->getSigner()->getCaSerial() < ++serial ) {
			cert->getSigner()->setCaSerial(serial);
			updatePKI(cert->getSigner());
		}
	}

	// check CA serial of this cert
	serial = searchSerial(cert);
	if ( ++serial > cert->getCaSerial()) {
		cert->setCaSerial(serial);
	}
	if (mainwin->crls) {
		mainwin->crls->updateRevocations(cert);
	}
	updatePKI(cert);
	return cert;
}

void db_x509::load(void)
{
	load_cert c;
	load_default(c);
}

pki_x509 *db_x509::get1SelectedCert()
{
	QModelIndexList indexes = mainwin->certView->getSelectedIndexes();
	QModelIndex index;
	if (indexes.count())
		index = indexes[0];
	if (index == QModelIndex())
		return NULL;
	return static_cast<pki_x509*>(index.internalPointer());
}

void db_x509::newItem()
{
	NewX509 *dlg = new NewX509(mainwin);
	emit connNewX509(dlg);
	dlg->setCert();
	pki_x509 *sigcert = get1SelectedCert();
	dlg->defineSigner((pki_x509*)sigcert, true);
	if (dlg->exec()) {
		newCert(dlg);
	}
	delete dlg;
}

void db_x509::newCert(pki_x509req *req)
{
	NewX509 *dlg = new NewX509(mainwin);
	emit connNewX509(dlg);
	pki_x509 *sigcert = get1SelectedCert();
	dlg->setCert();
	dlg->defineRequest(req);
	dlg->defineSigner(sigcert, true);
	if (dlg->exec()) {
		newCert(dlg);
	}
	delete dlg;
}

void db_x509::newCert(pki_temp *temp)
{
	NewX509 *dlg = new NewX509(mainwin);
	emit connNewX509(dlg);
	dlg->setCert();
	dlg->defineTemplate(temp);
	if (dlg->exec()) {
		newCert(dlg);
	}
	delete dlg;
}

void db_x509::newCert(pki_x509 *cert)
{
	NewX509 *dlg = new NewX509(mainwin);
	emit connNewX509(dlg);
	dlg->setCert();
	dlg->fromX509super(cert, false);
	if (dlg->exec()) {
		newCert(dlg);
	}
	delete dlg;
}

void db_x509::newCert(NewX509 *dlg)
{
	pki_x509 *cert = NULL;
	pki_x509 *signcert = NULL;
	pki_x509req *req = NULL;
	pki_key *signkey = NULL, *clientkey = NULL, *tempkey = NULL;
	a1int serial;
	x509name subject;
	QString intname;

    try {

	// Step 1 - Subject and key
	if (!dlg->fromReqCB->isChecked()) {
		clientkey = dlg->getSelectedKey();
		if (!clientkey)
			return;
		subject = dlg->getX509name();
		intname = dlg->description->text();
	} else {
		// A PKCS#10 Request was selected
		req = dlg->getSelectedReq();
		if (!req)
			return;
		clientkey = req->getRefKey();
		if (clientkey == NULL) {
			clientkey = req->getPubKey();
			tempkey = clientkey;
		}
		if (dlg->reqSubChange->isChecked())
			subject = dlg->getX509name();
		else
			subject = req->getSubject();
		intname = req->getIntName();
	}
	if (clientkey == NULL)
		throw errorEx(tr("Invalid public key"));
	// initially create cert
	cert = new pki_x509();
	cert->setIntName(intname);
	cert->setSubject(subject);
	cert->setPubKey(clientkey);

	// Step 2 - select Signing
	if (dlg->foreignSignRB->isChecked()) {
		signcert = dlg->getSelectedSigner();
		if (!signcert)
			return;
		serial = getUniqueSerial(signcert);
		signkey = signcert->getRefKey();
		cert->setTrust(1);
#ifdef WG_QA_SERIAL
	} else if (dlg->selfQASignRB->isChecked()){
		Passwd pass;
		pass_info p(XCA_TITLE, tr("Please enter the new hexadecimal secret number for the QA process."));
		if (PwDialog::execute(&p, &pass, true) != 1)
			throw errorEx(tr("The QA process has been terminated by the user."));
		signcert = cert;
		signkey = clientkey;
		serial.setHex(pass);
		cert->setTrust(2);
#endif
	} else {
		signcert = cert;
		signkey = clientkey;
		serial.setHex(dlg->serialNr->text());
		cert->setTrust(2);
	}

	dlg->initCtx(cert, signcert, NULL);
	// if we can not sign
	if (! signkey || signkey->isPubKey()) {
		delete cert;
		throw errorEx(tr("The key you selected for signing is not a private one."));
	}

	// set the issuers name
	cert->setIssuer(signcert->getSubject());
	cert->setSerial(serial);

	// Step 3 - Choose the Date
	// Date handling
	cert->setNotBefore(dlg->notBefore->getDate());
	a1time a;
	if (dlg->noWellDefinedExpDate->isChecked())
		a.setUndefined();
	else
		a = dlg->notAfter->getDate();

	cert->setNotAfter(a);

	// STEP 4 handle extensions

	// apply all extensions to the subject cert in the context
	dlg->getAllExt();

	// apply extensions from CSR if requested
	if (dlg->copyReqExtCB->isChecked() && dlg->fromReqCB->isChecked()) {
		extList el = req->getV3ext();
		int m = el.count();
		for (int i=0; i<m; i++)
			cert->addV3ext(el[i], true);
	}

	const EVP_MD *hashAlgo = dlg->hashAlgo->currentHash();
#ifdef WG_QA_SERIAL
	if (dlg->selfQASignRB->isChecked()) {
		// sign the request intermediately in order to finally fill
		// up the cert_info substructure.
		cert->sign(signkey, hashAlgo);
		// now set the QA serial.
		cert->setSerial(cert->hashInfo(EVP_md5()));
	}
#endif
	// and finally sign the request
	cert->sign(signkey, hashAlgo);

	cert = (pki_x509*)insert(cert);
	createSuccess(cert);
	updatePKI(signcert);
	if (cert && clientkey->isToken()) {
		pki_scard *card = (pki_scard*)clientkey;
		if (XCA_YESNO(tr("Store the certificate to the key on the token '%1 (#%2)' ?").
			arg(card->getCardLabel()).arg(card->getSerial())))
		{
			try {
				cert->store_token(false);
			} catch (errorEx &err) {
				mainwin->Error(err);
			}
		}
	}
	if (tempkey != NULL)
		delete(tempkey);
    }

    catch (errorEx &err) {
		mainwin->Error(err);
		delete cert;
		if (tempkey != NULL)
			delete(tempkey);
    }
}

void db_x509::showPki(pki_base *pki)
{
	pki_x509 *crt = (pki_x509 *)pki;
	CertDetail *dlg;
	dlg = new CertDetail(mainwin);
	if (dlg) {
		dlg->setCert(crt);
		connect(dlg->privKey, SIGNAL(doubleClicked(QString)),
			mainwin->keys, SLOT(showItem(QString)));
		connect(dlg->signature, SIGNAL(doubleClicked(QString)),
			this, SLOT( showItem(QString) ));
		dlg->exec();
		delete dlg;
	}
}

void db_x509::store(QModelIndex idx)
{
	QModelIndexList l;
	l << idx;
	store(l);
}

void db_x509::store(QModelIndexList list)
{
	QStringList filt;
	bool append, chain;
	QList<exportType> types, usual;

	if (list.size() == 0)
		return;

	pki_x509 *crt = static_cast<pki_x509*>(list[0].internalPointer());
	pki_x509 *oldcrt = NULL;
	if (!crt)
		return;

	pki_key *privkey = crt->getRefKey();
	pki_evp *pkey;
	chain = crt->getSigner() && crt->getSigner() != crt;

	usual <<
		exportType(exportType::PEM, "crt", "PEM") <<
		exportType(exportType::PKCS7, "p7b", "PKCS #7");

	types << exportType(exportType::DER, "cer", "DER");

	if (list.size() > 1) {
		usual <<
			exportType(exportType::PEM_selected, "pem",
				"PEM selected") <<
			exportType(exportType::PKCS7_selected, "pem",
				"PKCS7 selected");
	}
	if (chain) {
		types <<
			exportType(exportType::PEM_chain, "pem",
				tr("PEM chain")) <<
			exportType(exportType::PKCS7_chain, "p7b",
				tr("PKCS#7 chain"));
	}

	if (privkey && privkey->isPrivKey() && !privkey->isToken()) {
		if (chain) {
			usual << exportType(exportType::PKCS12_chain, "p12",
				tr("PKCS#12 chain"));
			types << exportType(exportType::PKCS12, "p12",
				"PKCS #12");
		} else {
			usual << exportType(exportType::PKCS12, "p12",
				"PKCS #12");
		}
		types <<
			exportType(exportType::PEM_cert_key, "pem",
				tr("PEM + key")) <<
			exportType(exportType::PEM_cert_pk8, "pem",
				"PEM + PKCS#8");
	}
	types << exportType() <<
		exportType(exportType::PKCS7_trusted, "p7b",
			tr("PKCS#7 trusted")) <<
		exportType(exportType::PKCS7_all, "p7b",
			tr("PKCS#7 all")) <<
		exportType(exportType::PEM_trusted, "pem",
			tr("PEM trusted")) <<
		exportType(exportType::PEM_all, "pem",
			tr("PEM all")) <<
		exportType(exportType::Index, "txt",
			tr("Certificate Index file"));

	types = usual << exportType() << types;
	ExportDialog *dlg = new ExportDialog(mainwin, tr("Certificate export"),
		tr("X509 Certificates ( *.pem *.cer *.crt *.p12 *.p7b )"), crt,
		MainWindow::certImg, types);
	if (!dlg->exec()) {
		delete dlg;
		return;
	}
	QString fname = dlg->filename->text();
	enum exportType::etype type = dlg->type();
	delete dlg;
	try {
		switch (type) {
		case exportType::PEM:
			crt->writeCert(fname, true, false);
			break;
		case exportType::PEM_chain:
			append = false;
			while(crt && crt != oldcrt) {
				crt->writeCert(fname, true, append);
				append = true;
				oldcrt = crt;
				crt = crt->getSigner();
			}
			break;
		case exportType::PEM_selected:
			append = false;
			foreach(QModelIndex idx, list) {
				crt = static_cast<pki_x509*>(idx.internalPointer());
				crt->writeCert(fname, true, append);
				append = true;
			}
			break;
		case exportType::PEM_trusted:
			writeAllCerts(fname,true);
			break;
		case exportType::PEM_all:
			writeAllCerts(fname,false);
			break;
		case exportType::DER:
			crt->writeCert(fname,false,false);
			break;
		case exportType::PKCS7:
		case exportType::PKCS7_chain:
		case exportType::PKCS7_trusted:
		case exportType::PKCS7_selected:
		case exportType::PKCS7_all:
			writePKCS7(crt, fname, type, list);
			break;
		case exportType::PKCS12:
			writePKCS12(crt, fname,false);
			break;
		case exportType::PKCS12_chain:
			writePKCS12(crt, fname,true);
			break;
		case exportType::PEM_cert_pk8:
		case exportType::PEM_cert_key:
			pkey = (pki_evp *)crt->getRefKey();
			if (!pkey || pkey->isPubKey()) {
				XCA_WARN(tr("There was no key found for the Certificate: '%1'").
					arg(crt->getIntName()));
				return;
			}
			if (pkey->isToken()) {
				XCA_WARN(tr("Not possible for a token key: '%1'").
					arg(crt->getIntName()));
                                return;
                        }

			if (type == exportType::PEM_cert_pk8) {
				pkey->writePKCS8(fname, EVP_des_ede3_cbc(),
						PwDialog::pwCallback, true);
			} else {
				pkey->writeKey(fname, NULL, NULL, true);
			}
			crt->writeCert(fname, true, true);
			break;
		case exportType::Index:
			append = false;
			foreach(QModelIndex idx, list) {
				crt = static_cast<pki_x509*>(idx.internalPointer());
				crt->writeIndexEntry(fname, append);
				append = true;
			}
			break;
		default:
			exit(1);
		}
	}
	catch (errorEx &err) {
		MainWindow::Error(err);
	}
}


void db_x509::writePKCS12(pki_x509 *cert, QString s, bool chain)
{
	QStringList filt;
    try {
		pki_evp *privkey = (pki_evp *)cert->getRefKey();
		if (!privkey || privkey->isPubKey()) {
			XCA_WARN(tr("There was no key found for the Certificate: '%1'").arg(cert->getIntName()));
			return;
		}
		if (privkey->isToken()) {
			XCA_WARN(tr("Not possible for the token-key Certificate '%1'").
				arg(cert->getIntName()));
			return;
		}
		if (s.isEmpty())
			return;
		s = nativeSeparator(s);
		pki_pkcs12 *p12 = new pki_pkcs12(cert->getIntName(), cert, privkey);
		pki_x509 *signer = cert->getSigner();
		while ((signer != NULL ) && (signer != cert) && chain) {
			p12->addCaCert(signer);
			cert=signer;
			signer=signer->getSigner();
		}
		p12->writePKCS12(s);
		delete p12;
    }
    catch (errorEx &err) {
		MainWindow::Error(err);
    }
}

void db_x509::writePKCS7(pki_x509 *cert, QString s, exportType::etype type,
			QModelIndexList list)
{
	pki_pkcs7 *p7 = NULL;

	try {
		p7 = new pki_pkcs7("");
		switch (type) {
		case exportType::PKCS7_chain:
			while (cert != NULL) {
				p7->addCert(cert);
				if (cert->getSigner() == cert)
					cert = NULL;
				else
					cert = cert->getSigner();
			}
			break;
		case exportType::PKCS7:
			p7->addCert(cert);
			break;
		case exportType::PKCS7_selected:
			foreach(QModelIndex idx, list) {
				cert = static_cast<pki_x509*>(idx.internalPointer());
				p7->addCert(cert);
			}
			break;
		case exportType::PKCS7_trusted:
		case exportType::PKCS7_all:
			FOR_ALL_pki(cer, pki_x509) {
				if ((type == exportType::PKCS7_all) ||
				    (cer->getTrust() == 2))
					p7->addCert(cer);
			}
			break;
		default:
			exit(1);
		}
		p7->writeP7(s, false);
	}
	catch (errorEx &err) {
		MainWindow::Error(err);
	}
	if (p7 != NULL )
		delete p7;

}

void db_x509::manageRevocations(QModelIndex idx)
{
	pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
	if (!cert)
		return;
	RevocationList *dlg = new RevocationList(mainwin);
	dlg->setRevList(cert->revList, cert);
	connect(dlg, SIGNAL(genCRL(pki_x509*)),
		mainwin->crls, SLOT(newItem(pki_x509*)));
	if (dlg->exec()) {
		cert->setRevocations(dlg->getRevList());
		updatePKI(cert);
		emit columnsContentChanged();
	}
}

void db_x509::setTrust(QModelIndexList indexes)
{
	int newstate = -1;
	Ui::TrustState ui;
	pki_x509 *cert = NULL;

	if (indexes.size() == 0)
		return;
	if (indexes.size() == 1)
		cert = static_cast<pki_x509*>(indexes[0].internalPointer());

	QDialog *dlg = new QDialog(mainwin);
	ui.setupUi(dlg);
	ui.image->setPixmap(*MainWindow::certImg);
	if (cert) {
		int state = cert->getTrust();
		if (cert->getSigner() == cert) {
			if (state == 1)
				state = 0;
			ui.trust1->setDisabled(true);
		}
		if (state == 0 ) ui.trust0->setChecked(true);
		if (state == 1 ) ui.trust1->setChecked(true);
		if (state == 2 ) ui.trust2->setChecked(true);
	}
	if (!dlg->exec()) {
		delete dlg;
		return;
	}
	if (ui.trust0->isChecked()) newstate = 0;
	if (ui.trust1->isChecked()) newstate = 1;
	if (ui.trust2->isChecked()) newstate = 2;
	delete dlg;
	if (newstate == -1) {
		return;
	}
	foreach(QModelIndex idx, indexes) {
		cert = static_cast<pki_x509*>(idx.internalPointer());
		if (newstate != cert->getTrust()) {
			cert->setTrust(newstate);
			updatePKI(cert);
		}
	}
}

void db_x509::certRenewal(QModelIndexList indexes)
{
	pki_x509 *oldcert = NULL, *signer = NULL, *newcert =NULL;
	pki_key *signkey = NULL;
	a1time time;
	a1int serial;
	CertExtend *dlg = NULL;
	x509rev r;
	bool doRevoke = false;

	if (indexes.size() == 0)
		return;
	QModelIndex idx = indexes[0];

	try {
		oldcert = static_cast<pki_x509*>(idx.internalPointer());
		if (!oldcert ||
				!(signer = oldcert->getSigner()) ||
				!(signkey = signer->getRefKey()) ||
				signkey->isPubKey())
			return;

		CertExtend *dlg = new CertExtend(mainwin, signer);
		if (!dlg->exec()) {
			delete dlg;
			return;
		}
		if (dlg->revoke->isChecked()) {
			Revocation *revoke = new Revocation(mainwin, indexes);
			doRevoke = revoke->exec();
			r = revoke->getRevocation();
			delete revoke;
		}
		foreach(idx, indexes) {
			oldcert = static_cast<pki_x509*>
					(idx.internalPointer());
			newcert = new pki_x509(oldcert);
			serial = getUniqueSerial(signer);
			newcert->setRevoked(x509rev());

			// change date and serial
			newcert->setSerial(serial);
			newcert->setNotBefore(dlg->notBefore->getDate());
			a1time a;
			if (dlg->noWellDefinedExpDate->isChecked())
				a.setUndefined();
			else
				a = dlg->notAfter->getDate();

			newcert->setNotAfter(a);

			// and finally sign the cert
			newcert->sign(signkey, oldcert->getDigest());
			newcert = (pki_x509 *)insert(newcert);
			createSuccess(newcert);
		}
		if (doRevoke)
			do_revoke(indexes, r);
	}
	catch (errorEx &err) {
		MainWindow::Error(err);
		if (newcert)
			delete newcert;
	}
	if (dlg)
		delete dlg;
	emit columnsContentChanged();
}


void db_x509::revoke(QModelIndexList indexes)
{
	if (indexes.size() == 0)
		return;
	Revocation *revoke = new Revocation(mainwin, indexes);
	if (revoke->exec()) {
		do_revoke(indexes, revoke->getRevocation());
	}
	emit columnsContentChanged();
}

void db_x509::do_revoke(QModelIndexList indexes, const x509rev &r)
{
	pki_x509 *parent = NULL, *cert, *iss;
	x509revList revlist;

	foreach(QModelIndex idx, indexes) {
		cert = static_cast<pki_x509*>(idx.internalPointer());
		iss = cert->getSigner();
		if (parent == NULL) {
			parent = iss;
		} else if (parent != iss) {
			parent = NULL;
			break;
		}
	}
	if (!parent) {
		qWarning("%s(%d): Certs have different/no signer\n",
			 __func__, __LINE__);
	}
	foreach(QModelIndex idx, indexes) {
		pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
		x509rev rev(r);
		rev.setSerial(cert->getSerial());
		cert->setRevoked(rev);
		revlist << rev;
	}
	parent->mergeRevList(revlist);
	updatePKI(parent);
}

void db_x509::unRevoke(QModelIndexList indexes)
{
	pki_x509 *parent = NULL;
	foreach(QModelIndex idx, indexes) {
		pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
		if (!cert)
			return;
		pki_x509 *iss = cert->getSigner();
		if (parent == NULL) {
			parent = iss;
		} else if (parent != iss) {
			parent = NULL;
			break;
		}
	}
	if (!parent) {
		qWarning("%s(%d): Certs have different/no signer\n",
			 __func__, __LINE__);
	}
	foreach(QModelIndex idx, indexes) {
		pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
		int i;
		x509rev rev;

		cert->setRevoked(x509rev());
		rev.setSerial(cert->getSerial());
		i = parent->revList.indexOf(rev);
		if (i != -1)
			parent->revList.takeAt(i);
	}
	updatePKI(parent);
	emit columnsContentChanged();
}

void db_x509::toCertificate(QModelIndex index)
{
	pki_x509 *cert = static_cast<pki_x509*>(index.internalPointer());
	if (!cert)
		return;
	if (!cert->getRefKey() && cert->getSigner() != cert)
		extractPubkey(index);
	newCert(cert);
}

void db_x509::toRequest(QModelIndex idx)
{
	pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
	if (!cert)
		return;

	try {
		pki_x509req *req = new pki_x509req();
		check_oom(req);
		req->setIntName(cert->getIntName());
		req->createReq(cert->getRefKey(), cert->getSubject(),
			cert->getDigest(), cert->getV3ext());
		createSuccess(mainwin->reqs->insert(req));
	}
	catch (errorEx &err) {
		mainwin->Error(err);
	}
}

void db_x509::toToken(QModelIndex idx, bool alwaysSelect)
{
	pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
	if (!cert)
		return;
	try {
		cert->store_token(alwaysSelect);
	} catch (errorEx &err) {
		mainwin->Error(err);
        }
}

void db_x509::caProperties(QModelIndex idx)
{
	Ui::CaProperties ui;
	int i;

	pki_x509 *cert = static_cast<pki_x509*>(idx.internalPointer());
	if (!cert)
		return;

	QDialog *dlg = new QDialog(mainwin);
	ui.setupUi(dlg);
	ui.serial->setText(cert->getCaSerial().toHex());
	ui.serial->setDisabled(cert->usesRandomSerial());
	ui.randomSerial->setChecked(cert->usesRandomSerial());
	ui.days->setSuffix(tr(" days"));
	ui.days->setMaximum(1000000);
	ui.days->setValue(cert->getCrlDays());
	ui.image->setPixmap(*MainWindow::certImg);
	QString templ = cert->getTemplate();
	QStringList tempList = mainwin->temps->getDesc();
	for (i=0; i<tempList.count(); i++) {
		if (tempList[i] == templ)
			break;
	}
	ui.temp->addItems(tempList);
	ui.temp->setCurrentIndex(i);
	ui.certName->setTitle(cert->getIntName());
	if (dlg->exec()) {
		a1int nserial;
		cert->setCrlDays(ui.days->value());
		nserial.setHex(ui.serial->text());
		cert->setCaSerial(nserial);
		cert->setTemplate(ui.temp->currentText());
		cert->setUseRandomSerial(ui.randomSerial->isChecked());
		updatePKI(cert);
	}
	delete dlg;
}