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/*
************************************************************************
******************* CANADIAN ASTRONOMY DATA CENTRE *******************
************** CENTRE CANADIEN DE DONNÉES ASTRONOMIQUES **************
*
* (c) 2020. (c) 2020.
* Government of Canada Gouvernement du Canada
* National Research Council Conseil national de recherches
* Ottawa, Canada, K1A 0R6 Ottawa, Canada, K1A 0R6
* All rights reserved Tous droits réservés
*
* NRC disclaims any warranties, Le CNRC dénie toute garantie
* expressed, implied, or énoncée, implicite ou légale,
* statutory, of any kind with de quelque nature que ce
* respect to the software, soit, concernant le logiciel,
* including without limitation y compris sans restriction
* any warranty of merchantability toute garantie de valeur
* or fitness for a particular marchande ou de pertinence
* purpose. NRC shall not be pour un usage particulier.
* liable in any event for any Le CNRC ne pourra en aucun cas
* damages, whether direct or être tenu responsable de tout
* indirect, special or general, dommage, direct ou indirect,
* consequential or incidental, particulier ou général,
* arising from the use of the accessoire ou fortuit, résultant
* software. Neither the name de l'utilisation du logiciel. Ni
* of the National Research le nom du Conseil National de
* Council of Canada nor the Recherches du Canada ni les noms
* names of its contributors may de ses participants ne peuvent
* be used to endorse or promote être utilisés pour approuver ou
* products derived from this promouvoir les produits dérivés
* software without specific prior de ce logiciel sans autorisation
* written permission. préalable et particulière
* par écrit.
*
* This file is part of the Ce fichier fait partie du projet
* OpenCADC project. OpenCADC.
*
* OpenCADC is free software: OpenCADC est un logiciel libre ;
* you can redistribute it and/or vous pouvez le redistribuer ou le
* modify it under the terms of modifier suivant les termes de
* the GNU Affero General Public la “GNU Affero General Public
* License as published by the License” telle que publiée
* Free Software Foundation, par la Free Software Foundation
* either version 3 of the : soit la version 3 de cette
* License, or (at your option) licence, soit (à votre gré)
* any later version. toute version ultérieure.
*
* OpenCADC is distributed in the OpenCADC est distribué
* hope that it will be useful, dans l’espoir qu’il vous
* but WITHOUT ANY WARRANTY; sera utile, mais SANS AUCUNE
* without even the implied GARANTIE : sans même la garantie
* warranty of MERCHANTABILITY implicite de COMMERCIALISABILITÉ
* or FITNESS FOR A PARTICULAR ni d’ADÉQUATION À UN OBJECTIF
* PURPOSE. See the GNU Affero PARTICULIER. Consultez la Licence
* General Public License for Générale Publique GNU Affero
* more details. pour plus de détails.
*
* You should have received Vous devriez avoir reçu une
* a copy of the GNU Affero copie de la Licence Générale
* General Public License along Publique GNU Affero avec
* with OpenCADC. If not, see OpenCADC ; si ce n’est
* . pas le cas, consultez :
* .
*
* : 5 $
*
************************************************************************
*/
package ca.nrc.cadc.caom2.repo.action;
import ca.nrc.cadc.caom2.access.AccessUtil;
import ca.nrc.cadc.caom2.access.ArtifactAccess;
import ca.nrc.cadc.caom2.persistence.ReadAccessDAO;
import ca.nrc.cadc.caom2.repo.CaomRepoConfig;
import ca.nrc.cadc.caom2.repo.PropertyAuthorizer;
import ca.nrc.cadc.io.ByteCountOutputStream;
import ca.nrc.cadc.net.ResourceNotFoundException;
import ca.nrc.cadc.rest.InlineContentHandler;
import ca.nrc.cadc.rest.RestAction;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.opencadc.gms.GroupURI;
import org.opencadc.permissions.Grant;
import org.opencadc.permissions.ReadGrant;
import org.opencadc.permissions.WriteGrant;
import org.opencadc.permissions.xml.GrantWriter;
public class GetPermissionsAction extends RestAction {
private static final Logger log = Logger.getLogger(GetPermissionsAction.class);
// hours until the grant expires
private static final int HOURS_UNTIL_EXPIRES = 24;
private static final String PARAM_OP = "OP";
private static final String PARAM_ID = "ID";
public enum Operation {
read,
write
}
@Override
protected InlineContentHandler getInlineContentHandler() {
return null;
}
@Override
public void doAction() throws Exception {
log.debug("GET ACTION");
String op = syncInput.getParameter(PARAM_OP);
String id = syncInput.getParameter(PARAM_ID);
log.debug(PARAM_OP + ": " + op);
log.debug(PARAM_ID + ": " + id);
if (op == null) {
throw new IllegalArgumentException("missing required parameter, " + PARAM_OP + "=["
+ Operation.read + "|" + Operation.write + "]");
}
if (id == null) {
throw new IllegalArgumentException("missing required parameter, " + PARAM_ID);
}
Operation operation;
try {
operation = Operation.valueOf(op);
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("invalid " + PARAM_OP + " parameter, must be " + PARAM_OP + "=["
+ Operation.read + "|" + Operation.write + "]");
}
URI assetID;
try {
assetID = new URI(id);
} catch (URISyntaxException e) {
throw new IllegalArgumentException("invalid " + PARAM_ID + " parameter, not a valid URI: " + id);
}
String context = syncInput.getContextPath();
context = context.startsWith("/") ? context.substring(1) : context;
String propertiesFilename = context + "-grants.properties";
PropertyAuthorizer propertiesAuthorization = new PropertyAuthorizer(propertiesFilename);
propertiesAuthorization.authorize();
doGetPermissions(assetID, operation);
}
protected void doGetPermissions(URI artifactURI, Operation operation) throws Exception {
log.debug("START: " + artifactURI);
ReadAccessDAO readAccessDAO = getReadAccessDAO(artifactURI);
ReadAccessDAO.RawArtifactAccess raa = readAccessDAO.getArtifactAccess(artifactURI);
if (raa == null) {
throw new ResourceNotFoundException("not found: " + artifactURI);
}
Grant grant;
if (operation == Operation.write) {
grant = new WriteGrant(artifactURI, getExpiryDate());
} else {
ArtifactAccess artifactAccess = AccessUtil.getArtifactAccess(raa.artifact, raa.metaRelease,
raa.metaReadAccessGroups, raa.dataRelease,
raa.dataReadAccessGroups);
grant = new ReadGrant(artifactURI, getExpiryDate(), artifactAccess.isPublic);
for (URI uri : artifactAccess.getReadGroups()) {
grant.getGroups().add(new GroupURI(uri));
}
}
syncOutput.setHeader("Content-Type", "text/xml");
syncOutput.setCode(200);
OutputStream os = syncOutput.getOutputStream();
ByteCountOutputStream bc = new ByteCountOutputStream(os);
GrantWriter writer = new GrantWriter();
writer.write(grant, bc);
logInfo.setBytes(bc.getByteCount());
log.debug("DONE: " + artifactURI);
}
// The date the grant expires
private Date getExpiryDate() {
Calendar now = Calendar.getInstance();
now.add(Calendar.HOUR_OF_DAY, HOURS_UNTIL_EXPIRES);
return now.getTime();
}
private ReadAccessDAO getReadAccessDAO(URI artifactURI) throws ResourceNotFoundException {
String serviceName = syncInput.getContextPath();
File config = new File(System.getProperty("user.home") + "/config" ,serviceName + ".properties");
try {
CaomRepoConfig caomRepoConfig = new CaomRepoConfig(config);
Iterator iterator = caomRepoConfig.iterator();
while (iterator.hasNext()) {
CaomRepoConfig.Item item = iterator.next();
if (archiveMatch(artifactURI, item.getArtifactPattern())) {
ReadAccessDAO readAccessDAO = new ReadAccessDAO();
readAccessDAO.setConfig(caomRepoConfig.getDAOConfig(item.getCollection()));
return readAccessDAO;
}
}
throw new ResourceNotFoundException("not found: " + artifactURI);
} catch (IOException ex) {
throw new RuntimeException("CONFIG: failed to read config from " + config.getAbsolutePath());
}
}
private boolean archiveMatch(URI uri, String pattern) {
if (pattern == null) {
return false;
}
return uri.toASCIIString().contains(pattern);
}
}
