/**
* This file is part of Graylog2.
*
* Graylog2 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 3 of the License, or
* (at your option) any later version.
*
* Graylog2 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 Graylog2. If not, see <http://www.gnu.org/licenses/>.
*/
package org.graylog2.rest.resources.filters;
import com.codahale.metrics.annotation.Timed;
import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiParam;
import org.apache.shiro.authz.annotation.RequiresAuthentication;
import org.graylog2.database.ValidationException;
import org.graylog2.filters.FilterService;
import org.graylog2.filters.blacklist.FilterDescription;
import org.graylog2.rest.resources.RestResource;
import org.graylog2.security.RestPermissions;
import org.graylog2.users.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Inject;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.NotFoundException;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.Collections;
import java.util.Set;
import static javax.ws.rs.core.Response.Status;
import static javax.ws.rs.core.Response.accepted;
import static javax.ws.rs.core.Response.ok;
import static javax.ws.rs.core.Response.serverError;
import static javax.ws.rs.core.Response.status;
@RequiresAuthentication
@Api(value = "Filters", description = "Message blacklist filters")
@Path("/filters/blacklist")
public class BlacklistSourceResource extends RestResource {
private static final Logger LOG = LoggerFactory.getLogger(BlacklistSourceResource.class);
private FilterService filterService;
@Inject
public BlacklistSourceResource(FilterService filterService) {
this.filterService = filterService;
}
@POST
@Timed
@ApiOperation(value = "Create a blacklist filter", notes = "It can take up to a second until the change is applied")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public Response create(@ApiParam(name = "filterEntry", required = true) FilterDescription filterDescription) {
checkPermission(RestPermissions.BLACKLISTENTRY_CREATE);
// force the user name to be consistent with the requesting user
final User currentUser = getCurrentUser();
if (currentUser == null) {
return serverError().entity("Could not load user.").build();
}
filterDescription.creatorUserId = currentUser.getName();
final FilterDescription savedFilter;
try {
savedFilter = filterService.save(filterDescription);
} catch (ValidationException e) {
throw new BadRequestException(e);
}
return accepted().entity(savedFilter).build();
}
@GET
@Timed
@ApiOperation("Get all blacklist filters")
@Produces(MediaType.APPLICATION_JSON)
public Set<FilterDescription> getAll() {
try {
return filterService.loadAll();
} catch (org.graylog2.database.NotFoundException e) {
return Collections.emptySet();
}
}
@GET
@Timed
@Path("/{filterId}")
@ApiOperation("Get the existing blacklist filter")
@Produces(MediaType.APPLICATION_JSON)
public FilterDescription get(@ApiParam(name = "filterId", required = true) @PathParam("filterId") String filterId) {
try {
return filterService.load(filterId);
} catch (org.graylog2.database.NotFoundException e) {
throw new NotFoundException();
}
}
@PUT
@Timed
@Path("/{filterId}")
@ApiOperation(value = "Update an existing blacklist filter", notes = "It can take up to a second until the change is applied")
@Consumes(MediaType.APPLICATION_JSON)
public Response update(@ApiParam(name = "filterId", required = true) @PathParam("filterId") String filterId,
@ApiParam(name = "filterEntry", required = true) FilterDescription filterEntry) {
FilterDescription filter;
try {
filter = filterService.load(filterId);
} catch (org.graylog2.database.NotFoundException e) {
return status(Response.Status.NOT_FOUND).build();
}
// did the filter type change?
if (!filter.getClass().equals(filterEntry.getClass())) {
// copy the relevant fields from the saved filter and then use the new class
filterEntry._id = filter._id;
filterEntry.createdAt = filter.createdAt;
filterEntry.creatorUserId = filter.creatorUserId;
filter = filterEntry;
} else {
// just copy the changable fields
filter.description = filterEntry.description;
filter.fieldName = filterEntry.fieldName;
filter.name = filterEntry.name;
filter.pattern = filterEntry.pattern;
}
try {
filterService.save(filter);
} catch (ValidationException e) {
return status(Status.BAD_REQUEST).entity(e.getMessage()).build();
}
return ok().build();
}
@DELETE
@Timed
@ApiOperation(value = "Remove the existing blacklist filter", notes = "It can take up to a second until the change is applied")
@Path("/{filterId}")
public Response delete(@ApiParam(name = "filterId", required = true) @PathParam("filterId") String filterId) {
final int deleted = filterService.delete(filterId);
if (deleted == 0) {
return status(Status.NOT_FOUND).build();
}
return Response.accepted().build();
}
}