/
ResourcesResponderV2.scala
1912 lines (1607 loc) · 104 KB
/
ResourcesResponderV2.scala
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/*
* Copyright © 2015-2019 the contributors (see Contributors.md).
*
* This file is part of Knora.
*
* Knora is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Knora 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with Knora. If not, see <http://www.gnu.org/licenses/>.
*/
package org.knora.webapi.responders.v2
import java.time.Instant
import java.util.UUID
import akka.http.scaladsl.util.FastFuture
import akka.pattern._
import akka.stream.ActorMaterializer
import org.knora.webapi._
import org.knora.webapi.messages.admin.responder.permissionsmessages.{DefaultObjectAccessPermissionsStringForResourceClassGetADM, DefaultObjectAccessPermissionsStringResponseADM, ResourceCreateOperation}
import org.knora.webapi.messages.admin.responder.projectsmessages.ProjectADM
import org.knora.webapi.messages.admin.responder.usersmessages.UserADM
import org.knora.webapi.messages.store.sipimessages.{SipiGetTextFileRequest, SipiGetTextFileResponse}
import org.knora.webapi.messages.store.triplestoremessages._
import org.knora.webapi.messages.v2.responder.ontologymessages._
import org.knora.webapi.messages.v2.responder.resourcemessages._
import org.knora.webapi.messages.v2.responder.searchmessages.GravsearchRequestV2
import org.knora.webapi.messages.v2.responder.standoffmessages.{GetMappingRequestV2, GetMappingResponseV2, GetXSLTransformationRequestV2, GetXSLTransformationResponseV2}
import org.knora.webapi.messages.v2.responder.valuemessages._
import org.knora.webapi.messages.v2.responder.{SuccessResponseV2, UpdateResultInProject}
import org.knora.webapi.responders.Responder.handleUnexpectedMessage
import org.knora.webapi.responders.v2.search.ConstructQuery
import org.knora.webapi.responders.v2.search.gravsearch.GravsearchParser
import org.knora.webapi.responders.{IriLocker, ResponderData}
import org.knora.webapi.twirl.SparqlTemplateResourceToCreate
import org.knora.webapi.util.ConstructResponseUtilV2.MappingAndXSLTransformation
import org.knora.webapi.util.IriConversions._
import org.knora.webapi.util.PermissionUtilADM.{AGreaterThanB, DeletePermission, ModifyPermission, PermissionComparisonResult}
import org.knora.webapi.util._
import org.knora.webapi.util.date.CalendarNameGregorian
import org.knora.webapi.util.standoff.StandoffTagUtilV2
import scala.concurrent.Future
import scala.util.{Failure, Success}
class ResourcesResponderV2(responderData: ResponderData) extends ResponderWithStandoffV2(responderData) {
/* actor materializer needed for http requests */
implicit val materializer: ActorMaterializer = ActorMaterializer()
/**
* Represents a resource that is ready to be created and whose contents can be verified afterwards.
*
* @param sparqlTemplateResourceToCreate a [[SparqlTemplateResourceToCreate]] describing SPARQL for creating
* the resource.
* @param values the resource's values for verification.
*/
private case class ResourceReadyToCreate(sparqlTemplateResourceToCreate: SparqlTemplateResourceToCreate,
values: Map[SmartIri, Seq[UnverifiedValueV2]])
/**
* Receives a message of type [[ResourcesResponderRequestV2]], and returns an appropriate response message.
*/
def receive(msg: ResourcesResponderRequestV2) = msg match {
case ResourcesGetRequestV2(resIris, propertyIri, valueUuid, versionDate, targetSchema, schemaOptions, requestingUser) => getResourcesV2(resIris, propertyIri, valueUuid, versionDate, targetSchema, schemaOptions, requestingUser)
case ResourcesPreviewGetRequestV2(resIris, targetSchema, requestingUser) => getResourcePreviewV2(resIris, targetSchema, requestingUser)
case ResourceTEIGetRequestV2(resIri, textProperty, mappingIri, gravsearchTemplateIri, headerXSLTIri, requestingUser) => getResourceAsTeiV2(resIri, textProperty, mappingIri, gravsearchTemplateIri, headerXSLTIri, requestingUser)
case createResourceRequestV2: CreateResourceRequestV2 => createResourceV2(createResourceRequestV2)
case updateResourceMetadataRequestV2: UpdateResourceMetadataRequestV2 => updateResourceMetadataV2(updateResourceMetadataRequestV2)
case deleteResourceRequestV2: DeleteOrEraseResourceRequestV2 => deleteOrEraseResourceV2(deleteResourceRequestV2)
case graphDataGetRequest: GraphDataGetRequestV2 => getGraphDataResponseV2(graphDataGetRequest)
case resourceHistoryRequest: ResourceVersionHistoryGetRequestV2 => getResourceHistoryV2(resourceHistoryRequest)
case other => handleUnexpectedMessage(other, log, this.getClass.getName)
}
/**
* Creates a new resource.
*
* @param createResourceRequestV2 the request to create the resource.
* @return a [[ReadResourcesSequenceV2]] containing a preview of the resource.
*/
private def createResourceV2(createResourceRequestV2: CreateResourceRequestV2): Future[ReadResourcesSequenceV2] = {
def makeTaskFuture: Future[ReadResourcesSequenceV2] = {
for {
// Convert the resource to the internal ontology schema.
internalCreateResource: CreateResourceV2 <- Future(createResourceRequestV2.createResource.toOntologySchema(InternalSchema))
// Check link targets and list nodes that should exist.
_ <- checkStandoffLinkTargets(internalCreateResource.flatValues, createResourceRequestV2.requestingUser)
_ <- checkListNodes(internalCreateResource.flatValues, createResourceRequestV2.requestingUser)
// Get the class IRIs of all the link targets in the request.
linkTargetClasses: Map[IRI, SmartIri] <- getLinkTargetClasses(
internalCreateResources = Seq(internalCreateResource),
requestingUser = createResourceRequestV2.requestingUser
)
// Get the definitions of the resource class and its properties, as well as of the classes of all
// resources that are link targets.
resourceClassEntityInfoResponse: EntityInfoGetResponseV2 <- (responderManager ? EntityInfoGetRequestV2(
classIris = linkTargetClasses.values.toSet + internalCreateResource.resourceClassIri,
requestingUser = createResourceRequestV2.requestingUser
)).mapTo[EntityInfoGetResponseV2]
resourceClassInfo: ReadClassInfoV2 = resourceClassEntityInfoResponse.classInfoMap(internalCreateResource.resourceClassIri)
propertyEntityInfoResponse: EntityInfoGetResponseV2 <- (responderManager ? EntityInfoGetRequestV2(
propertyIris = resourceClassInfo.knoraResourceProperties,
requestingUser = createResourceRequestV2.requestingUser
)).mapTo[EntityInfoGetResponseV2]
allEntityInfo = EntityInfoGetResponseV2(
classInfoMap = resourceClassEntityInfoResponse.classInfoMap,
propertyInfoMap = propertyEntityInfoResponse.propertyInfoMap
)
// Get the default permissions of the resource class.
defaultResourcePermissionsMap <- getResourceClassDefaultPermissions(
projectIri = createResourceRequestV2.createResource.projectADM.id,
resourceClassIris = Set(internalCreateResource.resourceClassIri),
requestingUser = createResourceRequestV2.requestingUser
)
defaultResourcePermissions: String = defaultResourcePermissionsMap(internalCreateResource.resourceClassIri)
// Get the default permissions of each property used.
defaultPropertyPermissionsMap: Map[SmartIri, Map[SmartIri, String]] <- getDefaultPropertyPermissions(
projectIri = createResourceRequestV2.createResource.projectADM.id,
resourceClassProperties = Map(internalCreateResource.resourceClassIri -> internalCreateResource.values.keySet),
requestingUser = createResourceRequestV2.requestingUser
)
defaultPropertyPermissions: Map[SmartIri, String] = defaultPropertyPermissionsMap(internalCreateResource.resourceClassIri)
// Make a versionDate for the resource and its values.
creationDate: Instant = internalCreateResource.creationDate.getOrElse(Instant.now)
// Do the remaining pre-update checks and make a ResourceReadyToCreate describing the SPARQL
// for creating the resource.
resourceReadyToCreate: ResourceReadyToCreate <- generateResourceReadyToCreate(
internalCreateResource = internalCreateResource,
linkTargetClasses = linkTargetClasses,
entityInfo = allEntityInfo,
clientResourceIDs = Map.empty[IRI, String],
defaultResourcePermissions = defaultResourcePermissions,
defaultPropertyPermissions = defaultPropertyPermissions,
creationDate = creationDate,
requestingUser = createResourceRequestV2.requestingUser
)
// Get the IRI of the named graph in which the resource will be created.
dataNamedGraph: IRI = stringFormatter.projectDataNamedGraphV2(createResourceRequestV2.createResource.projectADM)
// Generate SPARQL for creating the resource.
sparqlUpdate = queries.sparql.v2.txt.createNewResources(
dataNamedGraph = dataNamedGraph,
triplestore = settings.triplestoreType,
resourcesToCreate = Seq(resourceReadyToCreate.sparqlTemplateResourceToCreate),
projectIri = createResourceRequestV2.createResource.projectADM.id,
creatorIri = createResourceRequestV2.requestingUser.id
).toString()
// Do the update.
_ <- (storeManager ? SparqlUpdateRequest(sparqlUpdate)).mapTo[SparqlUpdateResponse]
// Verify that the resource was created correctly.
previewOfCreatedResource: ReadResourcesSequenceV2 <- verifyResource(
resourceReadyToCreate = resourceReadyToCreate,
projectIri = createResourceRequestV2.createResource.projectADM.id,
requestingUser = createResourceRequestV2.requestingUser
)
} yield previewOfCreatedResource
}
val triplestoreUpdateFuture: Future[ReadResourcesSequenceV2] = for {
// Don't allow anonymous users to create resources.
_ <- Future {
if (createResourceRequestV2.requestingUser.isAnonymousUser) {
throw ForbiddenException("Anonymous users aren't allowed to create resources")
} else {
createResourceRequestV2.requestingUser.id
}
}
// Ensure that the project isn't the system project or the shared ontologies project.
projectIri = createResourceRequestV2.createResource.projectADM.id
_ = if (projectIri == OntologyConstants.KnoraAdmin.SystemProject || projectIri == OntologyConstants.KnoraAdmin.DefaultSharedOntologiesProject) {
throw BadRequestException(s"Resources cannot be created in project <$projectIri>")
}
// Ensure that the resource class isn't from a non-shared ontology in another project.
resourceClassOntologyIri: SmartIri = createResourceRequestV2.createResource.resourceClassIri.getOntologyFromEntity
readOntologyMetadataV2: ReadOntologyMetadataV2 <- (responderManager ? OntologyMetadataGetByIriRequestV2(Set(resourceClassOntologyIri), createResourceRequestV2.requestingUser)).mapTo[ReadOntologyMetadataV2]
ontologyMetadata: OntologyMetadataV2 = readOntologyMetadataV2.ontologies.headOption.getOrElse(throw BadRequestException(s"Ontology $resourceClassOntologyIri not found"))
ontologyProjectIri: IRI = ontologyMetadata.projectIri.getOrElse(throw InconsistentTriplestoreDataException(s"Ontology $resourceClassOntologyIri has no project")).toString
_ = if (projectIri != ontologyProjectIri && !(ontologyMetadata.ontologyIri.isKnoraBuiltInDefinitionIri || ontologyMetadata.ontologyIri.isKnoraSharedDefinitionIri)) {
throw BadRequestException(s"Cannot create a resource in project <$projectIri> with resource class <${createResourceRequestV2.createResource.resourceClassIri}>, which is defined in a non-shared ontology in another project")
}
// Check user's PermissionProfile (part of UserADM) to see if the user has the permission to
// create a new resource in the given project.
internalResourceClassIri: SmartIri = createResourceRequestV2.createResource.resourceClassIri.toOntologySchema(InternalSchema)
_ = if (!createResourceRequestV2.requestingUser.permissions.hasPermissionFor(ResourceCreateOperation(internalResourceClassIri.toString), projectIri, None)) {
throw ForbiddenException(s"User ${createResourceRequestV2.requestingUser.username} does not have permission to create a resource of class <${createResourceRequestV2.createResource.resourceClassIri}> in project <$projectIri>")
}
// Do the remaining pre-update checks and the update while holding an update lock on the resource to be created.
taskResult <- IriLocker.runWithIriLock(
createResourceRequestV2.apiRequestID,
createResourceRequestV2.createResource.resourceIri,
() => makeTaskFuture
)
} yield taskResult
// If the request includes file values, tell Sipi to move the files to permanent storage if the update
// succeeded, or to delete the temporary files if the update failed.
doSipiPostUpdateForResources(
updateFuture = triplestoreUpdateFuture,
createResources = Seq(createResourceRequestV2.createResource),
requestingUser = createResourceRequestV2.requestingUser
)
}
/**
* Updates a resources metadata.
*
* @param updateResourceMetadataRequestV2 the update request.
* @return a [[SuccessResponseV2]].
*/
private def updateResourceMetadataV2(updateResourceMetadataRequestV2: UpdateResourceMetadataRequestV2): Future[SuccessResponseV2] = {
def makeTaskFuture: Future[SuccessResponseV2] = {
for {
// Get the metadata of the resource to be updated.
resourcesSeq: ReadResourcesSequenceV2 <- getResourcePreviewV2(
resourceIris = Seq(updateResourceMetadataRequestV2.resourceIri),
targetSchema = ApiV2Complex,
requestingUser = updateResourceMetadataRequestV2.requestingUser
)
resource: ReadResourceV2 = resourcesSeq.toResource(updateResourceMetadataRequestV2.resourceIri)
internalResourceClassIri = updateResourceMetadataRequestV2.resourceClassIri.toOntologySchema(InternalSchema)
// Make sure that the resource's class is what the client thinks it is.
_ = if (resource.resourceClassIri != internalResourceClassIri) {
throw BadRequestException(s"Resource <${resource.resourceIri}> is not a member of class <${updateResourceMetadataRequestV2.resourceClassIri}>")
}
// Make sure that the resource hasn't been updated since the client got its last modification date.
_ = if (resource.lastModificationDate != updateResourceMetadataRequestV2.maybeLastModificationDate) {
throw EditConflictException(s"Resource <${resource.resourceIri}> has been modified since you last read it")
}
// Check that the user has permission to modify the resource.
_ = ResourceUtilV2.checkResourcePermission(
resourceInfo = resource,
permissionNeeded = ModifyPermission,
requestingUser = updateResourceMetadataRequestV2.requestingUser
)
// Get the IRI of the named graph in which the resource is stored.
dataNamedGraph: IRI = stringFormatter.projectDataNamedGraphV2(resource.projectADM)
newModificationDate: Instant = updateResourceMetadataRequestV2.maybeNewModificationDate match {
case Some(submittedNewModificationDate) =>
if (resource.lastModificationDate.exists(_.isAfter(submittedNewModificationDate))) {
throw BadRequestException(s"Submitted knora-api:newModificationDate is before the resource's current knora-api:lastModificationDate")
} else {
submittedNewModificationDate
}
case None => Instant.now
}
// Generate SPARQL for updating the resource.
sparqlUpdate = queries.sparql.v2.txt.changeResourceMetadata(
triplestore = settings.triplestoreType,
dataNamedGraph = dataNamedGraph,
resourceIri = updateResourceMetadataRequestV2.resourceIri,
resourceClassIri = internalResourceClassIri,
maybeLastModificationDate = updateResourceMetadataRequestV2.maybeLastModificationDate,
newModificationDate = newModificationDate,
maybeLabel = updateResourceMetadataRequestV2.maybeLabel,
maybePermissions = updateResourceMetadataRequestV2.maybePermissions
).toString()
// Do the update.
_ <- (storeManager ? SparqlUpdateRequest(sparqlUpdate)).mapTo[SparqlUpdateResponse]
// Verify that the resource was updated correctly.
updatedResourcesSeq: ReadResourcesSequenceV2 <- getResourcePreviewV2(
resourceIris = Seq(updateResourceMetadataRequestV2.resourceIri),
targetSchema = ApiV2Complex,
requestingUser = updateResourceMetadataRequestV2.requestingUser
)
_ = if (updatedResourcesSeq.resources.size != 1) {
throw AssertionException(s"Expected one resource, got ${resourcesSeq.resources.size}")
}
updatedResource: ReadResourceV2 = updatedResourcesSeq.resources.head
_ = if (!updatedResource.lastModificationDate.contains(newModificationDate)) {
throw UpdateNotPerformedException(s"Updated resource has last modification date ${updatedResource.lastModificationDate}, expected $newModificationDate")
}
_ = updateResourceMetadataRequestV2.maybeLabel match {
case Some(newLabel) =>
if (!updatedResource.label.contains(stringFormatter.fromSparqlEncodedString(newLabel))) {
throw UpdateNotPerformedException()
}
case None => ()
}
_ = updateResourceMetadataRequestV2.maybePermissions match {
case Some(newPermissions) =>
if (PermissionUtilADM.parsePermissions(updatedResource.permissions) != PermissionUtilADM.parsePermissions(newPermissions)) {
throw UpdateNotPerformedException()
}
case None => ()
}
// If the resource's label was changed, update the full-text search index.
_ <- updateResourceMetadataRequestV2.maybeLabel match {
case Some(_) =>
for {
_ <- (storeManager ? SearchIndexUpdateRequest(Some(updateResourceMetadataRequestV2.resourceIri))).mapTo[SparqlUpdateResponse]
} yield ()
case None => FastFuture.successful(())
}
} yield SuccessResponseV2("Resource metadata updated")
}
for {
// Do the remaining pre-update checks and the update while holding an update lock on the resource.
taskResult <- IriLocker.runWithIriLock(
updateResourceMetadataRequestV2.apiRequestID,
updateResourceMetadataRequestV2.resourceIri,
() => makeTaskFuture
)
} yield taskResult
}
/**
* Either marks a resource as deleted or erases it from the triplestore, depending on the value of `erase`
* in the request message.
*
* @param deleteOrEraseResourceV2 the request message.
*/
private def deleteOrEraseResourceV2(deleteOrEraseResourceV2: DeleteOrEraseResourceRequestV2): Future[SuccessResponseV2] = {
if (deleteOrEraseResourceV2.erase) {
eraseResourceV2(deleteOrEraseResourceV2)
} else {
markResourceAsDeletedV2(deleteOrEraseResourceV2)
}
}
/**
* Marks a resource as deleted.
*
* @param deleteResourceV2 the request message.
*/
private def markResourceAsDeletedV2(deleteResourceV2: DeleteOrEraseResourceRequestV2): Future[SuccessResponseV2] = {
def makeTaskFuture: Future[SuccessResponseV2] = {
for {
// Get the metadata of the resource to be updated.
resourcesSeq: ReadResourcesSequenceV2 <- getResourcePreviewV2(
resourceIris = Seq(deleteResourceV2.resourceIri),
targetSchema = ApiV2Complex,
requestingUser = deleteResourceV2.requestingUser
)
resource: ReadResourceV2 = resourcesSeq.toResource(deleteResourceV2.resourceIri)
internalResourceClassIri = deleteResourceV2.resourceClassIri.toOntologySchema(InternalSchema)
// Make sure that the resource's class is what the client thinks it is.
_ = if (resource.resourceClassIri != internalResourceClassIri) {
throw BadRequestException(s"Resource <${resource.resourceIri}> is not a member of class <${deleteResourceV2.resourceClassIri}>")
}
// Make sure that the resource hasn't been updated since the client got its last modification date.
_ = if (resource.lastModificationDate != deleteResourceV2.maybeLastModificationDate) {
throw EditConflictException(s"Resource <${resource.resourceIri}> has been modified since you last read it")
}
// Check that the user has permission to mark the resource as deleted.
_ = ResourceUtilV2.checkResourcePermission(
resourceInfo = resource,
permissionNeeded = DeletePermission,
requestingUser = deleteResourceV2.requestingUser
)
// Get the IRI of the named graph in which the resource is stored.
dataNamedGraph: IRI = stringFormatter.projectDataNamedGraphV2(resource.projectADM)
// Generate SPARQL for marking the resource as deleted.
sparqlUpdate = queries.sparql.v2.txt.deleteResource(
triplestore = settings.triplestoreType,
dataNamedGraph = dataNamedGraph,
resourceIri = deleteResourceV2.resourceIri,
maybeDeleteComment = deleteResourceV2.maybeDeleteComment,
currentTime = Instant.now,
requestingUser = deleteResourceV2.requestingUser.id
).toString()
// Do the update.
_ <- (storeManager ? SparqlUpdateRequest(sparqlUpdate)).mapTo[SparqlUpdateResponse]
// Verify that the resource was deleted correctly.
sparqlQuery = queries.sparql.v2.txt.checkResourceDeletion(
triplestore = settings.triplestoreType,
resourceIri = deleteResourceV2.resourceIri
).toString()
sparqlSelectResponse <- (storeManager ? SparqlSelectRequest(sparqlQuery)).mapTo[SparqlSelectResponse]
rows = sparqlSelectResponse.results.bindings
_ = if (rows.isEmpty || !stringFormatter.optionStringToBoolean(rows.head.rowMap.get("isDeleted"), throw InconsistentTriplestoreDataException(s"Invalid boolean for isDeleted: ${rows.head.rowMap.get("isDeleted")}"))) {
throw UpdateNotPerformedException(s"Resource <${deleteResourceV2.resourceIri}> was not marked as deleted. Please report this as a possible bug.")
}
} yield SuccessResponseV2("Resource marked as deleted")
}
if (deleteResourceV2.erase) {
throw AssertionException(s"Request message has erase == true")
}
for {
// Do the remaining pre-update checks and the update while holding an update lock on the resource.
taskResult <- IriLocker.runWithIriLock(
deleteResourceV2.apiRequestID,
deleteResourceV2.resourceIri,
() => makeTaskFuture
)
} yield taskResult
}
/**
* Erases a resource from the triplestore.
*
* @param eraseResourceV2 the request message.
*/
private def eraseResourceV2(eraseResourceV2: DeleteOrEraseResourceRequestV2): Future[SuccessResponseV2] = {
def makeTaskFuture: Future[SuccessResponseV2] = {
for {
// Get the metadata of the resource to be updated.
resourcesSeq: ReadResourcesSequenceV2 <- getResourcePreviewV2(
resourceIris = Seq(eraseResourceV2.resourceIri),
targetSchema = ApiV2Complex,
requestingUser = eraseResourceV2.requestingUser
)
resource: ReadResourceV2 = resourcesSeq.toResource(eraseResourceV2.resourceIri)
// Ensure that the requesting user is a system admin, or an admin of this project.
_ = if (!(eraseResourceV2.requestingUser.permissions.isProjectAdmin(resource.projectADM.id) ||
eraseResourceV2.requestingUser.permissions.isSystemAdmin)) {
throw ForbiddenException(s"Only a system admin or project admin can erase a resource")
}
internalResourceClassIri = eraseResourceV2.resourceClassIri.toOntologySchema(InternalSchema)
// Make sure that the resource's class is what the client thinks it is.
_ = if (resource.resourceClassIri != internalResourceClassIri) {
throw BadRequestException(s"Resource <${resource.resourceIri}> is not a member of class <${eraseResourceV2.resourceClassIri}>")
}
// Make sure that the resource hasn't been updated since the client got its last modification date.
_ = if (resource.lastModificationDate != eraseResourceV2.maybeLastModificationDate) {
throw EditConflictException(s"Resource <${resource.resourceIri}> has been modified since you last read it")
}
// Check that the resource is not referred to by any other resources. We ignore rdf:subject (so we
// can erase the resource's own links) and rdf:object (in case there is a deleted link value that
// refers to it). Any such deleted link values will be erased along with the resource. If there
// is a non-deleted link to the resource, the direct link (rather than the link value) will case
// isEntityUsed() to throw an exception.
resourceSmartIri = eraseResourceV2.resourceIri.toSmartIri
_ <- isEntityUsed(
entityIri = resourceSmartIri,
errorFun = throw BadRequestException(s"Resource ${eraseResourceV2.resourceIri} cannot be erased, because it is referred to by another resource"),
ignoreRdfSubjectAndObject = true
)
// Get the IRI of the named graph from which the resource will be erased.
dataNamedGraph: IRI = stringFormatter.projectDataNamedGraphV2(resource.projectADM)
// Generate SPARQL for erasing the resource.
sparqlUpdate = queries.sparql.v2.txt.eraseResource(
triplestore = settings.triplestoreType,
dataNamedGraph = dataNamedGraph,
resourceIri = eraseResourceV2.resourceIri
).toString()
// _ = println(sparqlUpdate)
// Do the update.
_ <- (storeManager ? SparqlUpdateRequest(sparqlUpdate)).mapTo[SparqlUpdateResponse]
// Verify that the resource was erased correctly.
resourceStillExists: Boolean <- checkEntityExists(
entityIri = resourceSmartIri,
)
_ = if (resourceStillExists) {
throw UpdateNotPerformedException(s"Resource <${eraseResourceV2.resourceIri}> was not erased. Please report this as a possible bug.")
}
} yield SuccessResponseV2("Resource erased")
}
if (!eraseResourceV2.erase) {
throw AssertionException(s"Request message has erase == false")
}
for {
// Do the pre-update checks and the update while holding an update lock on the resource.
taskResult <- IriLocker.runWithIriLock(
eraseResourceV2.apiRequestID,
eraseResourceV2.resourceIri,
() => makeTaskFuture
)
} yield taskResult
}
/**
* Generates a [[SparqlTemplateResourceToCreate]] describing SPARQL for creating a resource and its values.
* This method does pre-update checks that have to be done for each new resource individually, even when
* multiple resources are being created in a single request.
*
* @param internalCreateResource the resource to be created.
* @param linkTargetClasses a map of resources that are link targets to the IRIs of those resources' classes.
* @param entityInfo an [[EntityInfoGetResponseV2]] containing definitions of the class of the resource to
* be created, as well as the classes that all the link targets
* belong to.
* @param clientResourceIDs a map of IRIs of resources to be created to client IDs for the same resources, if any.
* @param defaultResourcePermissions the default permissions to be given to the resource, if it does not have custom permissions.
* @param defaultPropertyPermissions the default permissions to be given to the resource's values, if they do not
* have custom permissions. This is a map of property IRIs to permission strings.
* @param creationDate the versionDate to be attached to the resource and its values.
* @param requestingUser the user making the request.
* @return a [[ResourceReadyToCreate]].
*/
private def generateResourceReadyToCreate(internalCreateResource: CreateResourceV2,
linkTargetClasses: Map[IRI, SmartIri],
entityInfo: EntityInfoGetResponseV2,
clientResourceIDs: Map[IRI, String],
defaultResourcePermissions: String,
defaultPropertyPermissions: Map[SmartIri, String],
creationDate: Instant,
requestingUser: UserADM): Future[ResourceReadyToCreate] = {
val resourceIDForErrorMsg: String = clientResourceIDs.get(internalCreateResource.resourceIri).map(resourceID => s"In resource '$resourceID': ").getOrElse("")
for {
// Check that the resource class has a suitable cardinality for each submitted value.
resourceClassInfo <- Future(entityInfo.classInfoMap(internalCreateResource.resourceClassIri))
knoraPropertyCardinalities: Map[SmartIri, Cardinality.KnoraCardinalityInfo] = resourceClassInfo.allCardinalities.filterKeys(resourceClassInfo.knoraResourceProperties)
_ = internalCreateResource.values.foreach {
case (propertyIri: SmartIri, valuesForProperty: Seq[CreateValueInNewResourceV2]) =>
val internalPropertyIri = propertyIri.toOntologySchema(InternalSchema)
val cardinalityInfo = knoraPropertyCardinalities.getOrElse(internalPropertyIri, throw OntologyConstraintException(s"${resourceIDForErrorMsg}Resource class <${internalCreateResource.resourceClassIri.toOntologySchema(ApiV2Complex)}> has no cardinality for property <$propertyIri>"))
if ((cardinalityInfo.cardinality == Cardinality.MayHaveOne || cardinalityInfo.cardinality == Cardinality.MustHaveOne) && valuesForProperty.size > 1) {
throw OntologyConstraintException(s"${resourceIDForErrorMsg}Resource class <${internalCreateResource.resourceClassIri.toOntologySchema(ApiV2Complex)}> does not allow more than one value for property <$propertyIri>")
}
}
// Check that no required values are missing.
requiredProps: Set[SmartIri] = knoraPropertyCardinalities.filter {
case (_, cardinalityInfo) => cardinalityInfo.cardinality == Cardinality.MustHaveOne || cardinalityInfo.cardinality == Cardinality.MustHaveSome
}.keySet -- resourceClassInfo.linkProperties
internalPropertyIris: Set[SmartIri] = internalCreateResource.values.keySet
_ = if (!requiredProps.subsetOf(internalPropertyIris)) {
val missingProps = (requiredProps -- internalPropertyIris).map(iri => s"<${iri.toOntologySchema(ApiV2Complex)}>").mkString(", ")
throw OntologyConstraintException(s"${resourceIDForErrorMsg}Values were not submitted for the following property or properties, which are required by resource class <${internalCreateResource.resourceClassIri.toOntologySchema(ApiV2Complex)}>: $missingProps")
}
// Check that each submitted value is consistent with the knora-base:objectClassConstraint of the property that is supposed to
// point to it.
_ = checkObjectClassConstraints(
values = internalCreateResource.values,
linkTargetClasses = linkTargetClasses,
entityInfo = entityInfo,
clientResourceIDs = clientResourceIDs,
resourceIDForErrorMsg = resourceIDForErrorMsg
)
// Check that the submitted values do not contain duplicates.
_ = checkForDuplicateValues(
values = internalCreateResource.values,
clientResourceIDs = clientResourceIDs,
resourceIDForErrorMsg = resourceIDForErrorMsg
)
// Validate and reformat any custom permissions in the request, and set all permissions to defaults if custom
// permissions are not provided.
resourcePermissions: String <- internalCreateResource.permissions match {
case Some(permissionStr) =>
for {
validatedCustomPermissions: String <- PermissionUtilADM.validatePermissions(permissionLiteral = permissionStr, responderManager = responderManager)
// Is the requesting user a system admin, or an admin of this project?
_ = if (!(requestingUser.permissions.isProjectAdmin(internalCreateResource.projectADM.id) || requestingUser.permissions.isSystemAdmin)) {
// No. Make sure they don't give themselves higher permissions than they would get from the default permissions.
val permissionComparisonResult: PermissionComparisonResult = PermissionUtilADM.comparePermissionsADM(
entityCreator = requestingUser.id,
entityProject = internalCreateResource.projectADM.id,
permissionLiteralA = validatedCustomPermissions,
permissionLiteralB = defaultResourcePermissions,
requestingUser = requestingUser
)
if (permissionComparisonResult == AGreaterThanB) {
throw ForbiddenException(s"${resourceIDForErrorMsg}The specified permissions would give the resource's creator a higher permission on the resource than the default permissions")
}
}
} yield validatedCustomPermissions
case None => FastFuture.successful(defaultResourcePermissions)
}
valuesWithValidatedPermissions: Map[SmartIri, Seq[GenerateSparqlForValueInNewResourceV2]] <- validateAndFormatValuePermissions(
project = internalCreateResource.projectADM,
values = internalCreateResource.values,
defaultPropertyPermissions = defaultPropertyPermissions,
resourceIDForErrorMsg = resourceIDForErrorMsg,
requestingUser = requestingUser
)
// Ask the values responder for SPARQL for generating the values.
sparqlForValuesResponse: GenerateSparqlToCreateMultipleValuesResponseV2 <- (responderManager ?
GenerateSparqlToCreateMultipleValuesRequestV2(
resourceIri = internalCreateResource.resourceIri,
values = valuesWithValidatedPermissions,
creationDate = creationDate,
requestingUser = requestingUser
)).mapTo[GenerateSparqlToCreateMultipleValuesResponseV2]
} yield ResourceReadyToCreate(
sparqlTemplateResourceToCreate = SparqlTemplateResourceToCreate(
resourceIri = internalCreateResource.resourceIri,
permissions = resourcePermissions,
sparqlForValues = sparqlForValuesResponse.insertSparql,
resourceClassIri = internalCreateResource.resourceClassIri.toString,
resourceLabel = internalCreateResource.label,
resourceCreationDate = creationDate
),
values = sparqlForValuesResponse.unverifiedValues
)
}
/**
* Given a sequence of resources to be created, gets the class IRIs of all the resources that are the targets of
* link values in the new resources, whether these already exist in the triplestore or are among the resources
* to be created.
*
* @param internalCreateResources the resources to be created.
* @param requestingUser the user making the request.
* @return a map of resource IRIs to class IRIs.
*/
private def getLinkTargetClasses(internalCreateResources: Seq[CreateResourceV2], requestingUser: UserADM): Future[Map[IRI, SmartIri]] = {
// Get the IRIs of the new and existing resources that are targets of links.
val (existingTargetIris: Set[IRI], newTargets: Set[IRI]) = internalCreateResources.flatMap(_.flatValues).foldLeft((Set.empty[IRI], Set.empty[IRI])) {
case ((accExisting: Set[IRI], accNew: Set[IRI]), valueToCreate: CreateValueInNewResourceV2) =>
valueToCreate.valueContent match {
case linkValueContentV2: LinkValueContentV2 =>
if (linkValueContentV2.referredResourceExists) {
(accExisting + linkValueContentV2.referredResourceIri, accNew)
} else {
(accExisting, accNew + linkValueContentV2.referredResourceIri)
}
case _ => (accExisting, accNew)
}
}
// Make a map of the IRIs of new target resources to their class IRIs.
val classesOfNewTargets: Map[IRI, SmartIri] = internalCreateResources.map {
resourceToCreate => resourceToCreate.resourceIri -> resourceToCreate.resourceClassIri
}.toMap.filterKeys(newTargets)
for {
// Get information about the existing resources that are targets of links.
existingTargets: ReadResourcesSequenceV2 <- getResourcePreviewV2(
resourceIris = existingTargetIris.toSeq,
targetSchema = ApiV2Complex,
requestingUser = requestingUser
)
// Make a map of the IRIs of existing target resources to their class IRIs.
classesOfExistingTargets: Map[IRI, SmartIri] = existingTargets.resources.map(resource => resource.resourceIri -> resource.resourceClassIri).toMap
} yield classesOfNewTargets ++ classesOfExistingTargets
}
/**
* Checks that values to be created in a new resource do not contain duplicates.
*
* @param values a map of property IRIs to values to be created (in the internal schema).
* @param clientResourceIDs a map of IRIs of resources to be created to client IDs for the same resources, if any.
* @param resourceIDForErrorMsg something that can be prepended to an error message to specify the client's ID for the
* resource to be created, if any.
*/
private def checkForDuplicateValues(values: Map[SmartIri, Seq[CreateValueInNewResourceV2]],
clientResourceIDs: Map[IRI, String] = Map.empty[IRI, String],
resourceIDForErrorMsg: IRI): Unit = {
values.foreach {
case (propertyIri: SmartIri, valuesToCreate: Seq[CreateValueInNewResourceV2]) =>
// Given the values for a property, compute all possible combinations of two of those values.
val valueCombinations: Iterator[Seq[CreateValueInNewResourceV2]] = valuesToCreate.combinations(2)
for (valueCombination: Seq[CreateValueInNewResourceV2] <- valueCombinations) {
// valueCombination must have two elements.
val firstValue: ValueContentV2 = valueCombination.head.valueContent
val secondValue: ValueContentV2 = valueCombination(1).valueContent
if (firstValue.wouldDuplicateOtherValue(secondValue)) {
throw DuplicateValueException(s"${resourceIDForErrorMsg}Duplicate values for property <${propertyIri.toOntologySchema(ApiV2Complex)}>")
}
}
}
}
/**
* Checks that values to be created in a new resource are compatible with the object class constraints
* of the resource's properties.
*
* @param values a map of property IRIs to values to be created (in the internal schema).
* @param linkTargetClasses a map of resources that are link targets to the IRIs of those resource's classes.
* @param entityInfo an [[EntityInfoGetResponseV2]] containing definitions of the classes that all the link targets
* belong to.
* @param clientResourceIDs a map of IRIs of resources to be created to client IDs for the same resources, if any.
* @param resourceIDForErrorMsg something that can be prepended to an error message to specify the client's ID for the
* resource to be created, if any.
*/
private def checkObjectClassConstraints(values: Map[SmartIri, Seq[CreateValueInNewResourceV2]],
linkTargetClasses: Map[IRI, SmartIri],
entityInfo: EntityInfoGetResponseV2,
clientResourceIDs: Map[IRI, String] = Map.empty[IRI, String],
resourceIDForErrorMsg: IRI): Unit = {
values.foreach {
case (propertyIri: SmartIri, valuesToCreate: Seq[CreateValueInNewResourceV2]) =>
val propertyInfo: ReadPropertyInfoV2 = entityInfo.propertyInfoMap(propertyIri)
// Don't accept link properties.
if (propertyInfo.isLinkProp) {
throw BadRequestException(s"${resourceIDForErrorMsg}Invalid property <${propertyIri.toOntologySchema(ApiV2Complex)}>. Use a link value property to submit a link.")
}
// Get the property's object class constraint. If this is a link value property, we want the object
// class constraint of the corresponding link property instead.
val propertyInfoForObjectClassConstraint = if (propertyInfo.isLinkValueProp) {
entityInfo.propertyInfoMap(propertyIri.fromLinkValuePropToLinkProp)
} else {
propertyInfo
}
val propertyIriForObjectClassConstraint = propertyInfoForObjectClassConstraint.entityInfoContent.propertyIri
val objectClassConstraint: SmartIri = propertyInfoForObjectClassConstraint.entityInfoContent.requireIriObject(OntologyConstants.KnoraBase.ObjectClassConstraint.toSmartIri,
throw InconsistentTriplestoreDataException(s"Property <$propertyIriForObjectClassConstraint> has no knora-api:objectType"))
// Check each value.
for (valueToCreate: CreateValueInNewResourceV2 <- valuesToCreate) {
valueToCreate.valueContent match {
case linkValueContentV2: LinkValueContentV2 =>
// It's a link value.
if (!propertyInfo.isLinkValueProp) {
throw OntologyConstraintException(s"${resourceIDForErrorMsg}Property <${propertyIri.toOntologySchema(ApiV2Complex)}> requires a value of type <${objectClassConstraint.toOntologySchema(ApiV2Complex)}>")
}
// Does the resource that's the target of the link belongs to a subclass of the
// link property's object class constraint?
val linkTargetClass = linkTargetClasses(linkValueContentV2.referredResourceIri)
val linkTargetClassInfo = entityInfo.classInfoMap(linkTargetClass)
if (!linkTargetClassInfo.allBaseClasses.contains(objectClassConstraint)) {
// No. If the target resource already exists, use its IRI in the error message.
// Otherwise, use the client's ID for the resource.
val resourceID = if (linkValueContentV2.referredResourceExists) {
s"<${linkValueContentV2.referredResourceIri}>"
} else {
s"'${clientResourceIDs(linkValueContentV2.referredResourceIri)}'"
}
throw OntologyConstraintException(s"${resourceIDForErrorMsg}Resource $resourceID cannot be the object of property <${propertyIriForObjectClassConstraint.toOntologySchema(ApiV2Complex)}>, because it does not belong to class <${objectClassConstraint.toOntologySchema(ApiV2Complex)}>")
}
case otherValueContentV2: ValueContentV2 =>
// It's not a link value. Check that its type is equal to the property's object
// class constraint.
if (otherValueContentV2.valueType != objectClassConstraint) {
throw OntologyConstraintException(s"${resourceIDForErrorMsg}Property <${propertyIri.toOntologySchema(ApiV2Complex)}> requires a value of type <${objectClassConstraint.toOntologySchema(ApiV2Complex)}>")
}
}
}
}
}
/**
* Given a sequence of values to be created in a new resource, checks the targets of standoff links in text
* values. For each link, if the target is expected to exist, checks that it exists and that the user has
* permission to see it.
*
* @param values the values to be checked.
* @param requestingUser the user making the request.
*/
private def checkStandoffLinkTargets(values: Iterable[CreateValueInNewResourceV2], requestingUser: UserADM): Future[Unit] = {
val standoffLinkTargetsThatShouldExist: Set[IRI] = values.foldLeft(Set.empty[IRI]) {
case (acc: Set[IRI], valueToCreate: CreateValueInNewResourceV2) =>
valueToCreate.valueContent match {
case textValueContentV2: TextValueContentV2 => acc ++ textValueContentV2.standoffLinkTagIriAttributes.filter(_.targetExists).map(_.value)
case _ => acc
}
}
getResourcePreviewV2(standoffLinkTargetsThatShouldExist.toSeq, targetSchema = ApiV2Complex, requestingUser).map(_ => ())
}
/**
* Given a sequence of values to be created in a new resource, checks the existence of the list nodes referred to
* in list values.
*
* @param values the values to be checked.
* @param requestingUser the user making the request.
*/
private def checkListNodes(values: Iterable[CreateValueInNewResourceV2], requestingUser: UserADM): Future[Unit] = {
val listNodesThatShouldExist: Set[IRI] = values.foldLeft(Set.empty[IRI]) {
case (acc: Set[IRI], valueToCreate: CreateValueInNewResourceV2) =>
valueToCreate.valueContent match {
case hierarchicalListValueContentV2: HierarchicalListValueContentV2 => acc + hierarchicalListValueContentV2.valueHasListNode
case _ => acc
}
}
Future.sequence(listNodesThatShouldExist.map(listNodeIri => ResourceUtilV2.checkListNodeExists(listNodeIri, storeManager)).toSeq).map(_ => ())
}
/**
* Given a map of property IRIs to values to be created in a new resource, validates and reformats any custom
* permissions in the values, and sets all value permissions to defaults if custom permissions are not provided.
*
* @param project the project in which the resource is to be created.
* @param values the values whose permissions are to be validated.
* @param defaultPropertyPermissions a map of property IRIs to default permissions.
* @param resourceIDForErrorMsg a string that can be prepended to an error message to specify the client's
* ID for the containing resource, if provided.
* @param requestingUser the user making the request.
* @return a map of property IRIs to sequences of [[GenerateSparqlForValueInNewResourceV2]], in which
* all permissions have been validated and defined.
*/
private def validateAndFormatValuePermissions(project: ProjectADM,
values: Map[SmartIri, Seq[CreateValueInNewResourceV2]],
defaultPropertyPermissions: Map[SmartIri, String],
resourceIDForErrorMsg: String,
requestingUser: UserADM): Future[Map[SmartIri, Seq[GenerateSparqlForValueInNewResourceV2]]] = {
val propertyValuesWithValidatedPermissionsFutures: Map[SmartIri, Seq[Future[GenerateSparqlForValueInNewResourceV2]]] = values.map {
case (propertyIri: SmartIri, valuesToCreate: Seq[CreateValueInNewResourceV2]) =>
val validatedPermissionFutures: Seq[Future[GenerateSparqlForValueInNewResourceV2]] = valuesToCreate.map {
valueToCreate =>
// Does this value have custom permissions?
valueToCreate.permissions match {
case Some(permissionStr: String) =>
// Yes. Validate and reformat them.
for {
validatedCustomPermissions <- PermissionUtilADM.validatePermissions(permissionLiteral = permissionStr, responderManager = responderManager)
// Is the requesting user a system admin, or an admin of this project?
_ = if (!(requestingUser.permissions.isProjectAdmin(project.id) || requestingUser.permissions.isSystemAdmin)) {
// No. Make sure they don't give themselves higher permissions than they would get from the default permissions.
val permissionComparisonResult: PermissionComparisonResult = PermissionUtilADM.comparePermissionsADM(
entityCreator = requestingUser.id,
entityProject = project.id,
permissionLiteralA = validatedCustomPermissions,
permissionLiteralB = defaultPropertyPermissions(propertyIri),
requestingUser = requestingUser
)
if (permissionComparisonResult == AGreaterThanB) {
throw ForbiddenException(s"${resourceIDForErrorMsg}The specified value permissions would give a value's creator a higher permission on the value than the default permissions")
}
}
} yield GenerateSparqlForValueInNewResourceV2(
valueContent = valueToCreate.valueContent,
permissions = validatedCustomPermissions
)
case None =>
// No. Use the default permissions.
FastFuture.successful {
GenerateSparqlForValueInNewResourceV2(
valueContent = valueToCreate.valueContent,
permissions = defaultPropertyPermissions(propertyIri)
)
}
}
}
propertyIri -> validatedPermissionFutures
}
ActorUtil.sequenceSeqFuturesInMap(propertyValuesWithValidatedPermissionsFutures)
}
/**
* Gets the default permissions for resource classs in a project.
*
* @param projectIri the IRI of the project.
* @param resourceClassIris the internal IRIs of the resource classes.
* @param requestingUser the user making the request.
* @return a map of resource class IRIs to default permission strings.
*/
private def getResourceClassDefaultPermissions(projectIri: IRI, resourceClassIris: Set[SmartIri], requestingUser: UserADM): Future[Map[SmartIri, String]] = {
val permissionsFutures: Map[SmartIri, Future[String]] = resourceClassIris.toSeq.map {
resourceClassIri =>
val requestMessage = DefaultObjectAccessPermissionsStringForResourceClassGetADM(
projectIri = projectIri,
resourceClassIri = resourceClassIri.toString,
targetUser = requestingUser,
requestingUser = KnoraSystemInstances.Users.SystemUser
)
resourceClassIri -> (responderManager ? requestMessage).mapTo[DefaultObjectAccessPermissionsStringResponseADM].map(_.permissionLiteral)
}.toMap
ActorUtil.sequenceFuturesInMap(permissionsFutures)
}
/**
* Gets the default permissions for properties in a resource class in a project.
*
* @param projectIri the IRI of the project.
* @param resourceClassProperties a map of internal resource class IRIs to sets of internal property IRIs.
* @param requestingUser the user making the request.
* @return a map of internal resource class IRIs to maps of property IRIs to default permission strings.
*/
private def getDefaultPropertyPermissions(projectIri: IRI, resourceClassProperties: Map[SmartIri, Set[SmartIri]], requestingUser: UserADM): Future[Map[SmartIri, Map[SmartIri, String]]] = {
val permissionsFutures: Map[SmartIri, Future[Map[SmartIri, String]]] = resourceClassProperties.map {
case (resourceClassIri, propertyIris) =>
val propertyPermissionsFutures: Map[SmartIri, Future[String]] = propertyIris.toSeq.map {
propertyIri =>
propertyIri -> ResourceUtilV2.getDefaultValuePermissions(
projectIri = projectIri,
resourceClassIri = resourceClassIri,
propertyIri = propertyIri,
requestingUser = requestingUser,
responderManager = responderManager
)
}.toMap
resourceClassIri -> ActorUtil.sequenceFuturesInMap(propertyPermissionsFutures)
}
ActorUtil.sequenceFuturesInMap(permissionsFutures)
}
/**