Examples with XmldbURI org.exist.xmldb.XmldbURI used on opensource projects

Example 41 with XmldbURI

use of org.exist.xmldb.XmldbURI in project exist by eXist-db.

the class NativeBroker method readCollectionEntry.

@Override
public void readCollectionEntry(final SubCollectionEntry entry) throws IOException, LockException {
    final XmldbURI uri = prepend(entry.getUri().toCollectionPathURI());
    final CollectionCache collectionsCache = pool.getCollectionsCache();
    final Collection collection = collectionsCache.getIfPresent(uri);
    if (collection == null) {
        try (final ManagedLock<ReentrantLock> collectionsDbLock = lockManager.acquireBtreeReadLock(collectionsDb.getLockName())) {
            final Value key = new CollectionStore.CollectionKey(uri.toString());
            final VariableByteInput is = collectionsDb.getAsStream(key);
            if (is == null) {
                throw new IOException("Could not find collection entry for: " + uri);
            }
            // read the entry details
            entry.read(is);
        }
    } else {
        if (!collection.getURI().equalsInternal(uri)) {
            throw new IOException(String.format("readCollectionEntry: The Collection received from the cache: %s is not the requested: %s", collection.getURI(), uri));
        }
        entry.read(collection);
    }
}

Example 42 with XmldbURI

use of org.exist.xmldb.XmldbURI in project exist by eXist-db.

the class NativeBroker method getResource.

@Override
public DocumentImpl getResource(XmldbURI fileName, final int accessType) throws PermissionDeniedException {
    fileName = prepend(fileName.toCollectionPathURI());
    // TODO : resolve URIs !!!
    final XmldbURI collUri = fileName.removeLastSegment();
    final XmldbURI docUri = fileName.lastSegment();
    try (final Collection collection = openCollection(collUri, LockMode.READ_LOCK)) {
        if (collection == null) {
            LOG.debug("collection '{}' not found!", collUri);
            return null;
        }
        try (final LockedDocument lockedDocument = collection.getDocumentWithLock(this, docUri, LockMode.READ_LOCK)) {
            // NOTE: early release of Collection lock inline with Asymmetrical Locking scheme
            collection.close();
            if (lockedDocument == null) {
                LOG.debug("document '{}' not found!", fileName);
                return null;
            }
            final DocumentImpl doc = lockedDocument.getDocument();
            if (!doc.getPermissions().validate(getCurrentSubject(), accessType)) {
                throw new PermissionDeniedException("Account '" + getCurrentSubject().getName() + "' not allowed requested access to document '" + fileName + "'");
            }
            return doc;
        } catch (final LockException e) {
            throw new PermissionDeniedException(e);
        }
    }
}

Example 43 with XmldbURI

use of org.exist.xmldb.XmldbURI in project exist by eXist-db.

the class NativeBroker method moveResource.

@Override
public void moveResource(final Txn transaction, final DocumentImpl sourceDocument, final Collection targetCollection, final XmldbURI newName) throws PermissionDeniedException, LockException, IOException, TriggerException {
    assert (sourceDocument != null);
    assert (targetCollection != null);
    assert (newName != null);
    if (isReadOnly()) {
        throw new IOException(DATABASE_IS_READ_ONLY);
    }
    if (newName.numSegments() != 1) {
        throw new IOException("newName name must be just a name i.e. an XmldbURI with one segment!");
    }
    final XmldbURI sourceDocumentUri = sourceDocument.getURI();
    final XmldbURI targetCollectionUri = targetCollection.getURI();
    final XmldbURI destinationDocumentUri = targetCollectionUri.append(newName);
    final Account docUser = sourceDocument.getUserLock();
    if (docUser != null) {
        if (!getCurrentSubject().getName().equals(docUser.getName())) {
            throw new PermissionDeniedException("Cannot move '" + sourceDocumentUri + " because is locked by getUser() '" + docUser.getName() + "'");
        }
    }
    /**
     * As per the rules of Linux -
     *
     * mv is NOT a copy operation unless we are traversing filesystems.
     * We consider eXist to be a single filesystem, so we only need
     * WRITE and EXECUTE access on the source and destination collections
     * as we are effectively just re-linking the file.
     *
     * - Adam 2013-03-26
     */
    // we assume the caller holds a WRITE_LOCK on sourceDocument#getCollection()
    final Collection sourceCollection = sourceDocument.getCollection();
    if (!sourceCollection.getPermissionsNoLock().validate(getCurrentSubject(), Permission.WRITE | Permission.EXECUTE)) {
        throw new PermissionDeniedException("Account " + getCurrentSubject().getName() + " have insufficient privileges on source Collection to move resource: " + sourceDocumentUri);
    }
    if (!targetCollection.getPermissionsNoLock().validate(getCurrentSubject(), Permission.WRITE | Permission.EXECUTE)) {
        throw new PermissionDeniedException("Account " + getCurrentSubject().getName() + " have insufficient privileges on destination Collection '" + targetCollectionUri + "' to move resource: " + sourceDocumentUri);
    }
    if (targetCollection.hasChildCollection(this, newName.lastSegment())) {
        throw new PermissionDeniedException("The Collection '" + targetCollectionUri + "' has a sub-collection '" + newName + "'; cannot create a Document with the same name!");
    }
    final DocumentTrigger trigger = new DocumentTriggers(this, transaction, sourceCollection);
    // check if the move would overwrite a document
    final DocumentImpl oldDoc = targetCollection.getDocument(this, newName);
    if (oldDoc != null) {
        if (sourceDocument.getDocId() == oldDoc.getDocId()) {
            throw new PermissionDeniedException("Cannot move resource to itself '" + sourceDocumentUri + "'.");
        }
        // GNU mv command would prompt for Confirmation here, you can say yes or pass the '-f' flag. As we cant prompt for confirmation we assume OK
        /* if(!oldDoc.getPermissions().validate(getCurrentSubject(), Permission.WRITE)) {
                throw new PermissionDeniedException("Resource with same name exists in target collection and write is denied");
            }
            */
        // remove the existing document
        removeResource(transaction, oldDoc);
    }
    final boolean renameOnly = sourceCollection.getId() == targetCollection.getId();
    trigger.beforeMoveDocument(this, transaction, sourceDocument, destinationDocumentUri);
    if (sourceDocument.getResourceType() == DocumentImpl.XML_FILE) {
        if (!renameOnly) {
            dropIndex(transaction, sourceDocument);
        }
    }
    sourceCollection.unlinkDocument(this, sourceDocument);
    if (!renameOnly) {
        saveCollection(transaction, sourceCollection);
    }
    removeResourceMetadata(transaction, sourceDocument);
    sourceDocument.setFileURI(newName);
    sourceDocument.setCollection(targetCollection);
    targetCollection.addDocument(transaction, this, sourceDocument);
    if (sourceDocument.getResourceType() == DocumentImpl.XML_FILE) {
        if (!renameOnly) {
            // reindexing
            reindexXMLResource(transaction, sourceDocument, IndexMode.REPAIR);
        }
    }
    // NOTE: nothing needs to be done for binary resources as the reference to the Blob does not change
    storeXMLResource(transaction, sourceDocument);
    saveCollection(transaction, targetCollection);
    trigger.afterMoveDocument(this, transaction, sourceDocument, sourceDocumentUri);
}

Example 44 with XmldbURI

use of org.exist.xmldb.XmldbURI in project exist by eXist-db.

the class SourceFactory method getSource.

/**
 * Create a {@link Source} object for the given resource URL.
 *
 * As a special case, if the URL starts with "resource:", the resource
 * will be read from the current context class loader.
 *
 * @param broker the eXist-db DBBroker
 * @param contextPath the context path of the resource.
 * @param location the location of the resource (relative to the {@code contextPath}).
 * @param checkXQEncoding where we need to check the encoding of the XQuery.
 *
 * @return The Source of the resource, or null if the resource cannot be found.
 *
 * @throws PermissionDeniedException if the resource resides in the database,
 *     but the calling user does not have permission to access it.
 * @throws IOException if a general I/O error occurs whilst accessing the resource.
 */
@Nullable
public static Source getSource(final DBBroker broker, final String contextPath, final String location, final boolean checkXQEncoding) throws IOException, PermissionDeniedException {
    Source source = null;
    /* resource: */
    if (location.startsWith(ClassLoaderSource.PROTOCOL) || (contextPath != null && contextPath.startsWith(ClassLoaderSource.PROTOCOL))) {
        source = getSource_fromClasspath(contextPath, location);
    }
    /* xmldb */
    if (source == null && (location.startsWith(XmldbURI.XMLDB_URI_PREFIX) || (contextPath != null && contextPath.startsWith(XmldbURI.XMLDB_URI_PREFIX)))) {
        XmldbURI pathUri;
        try {
            if (contextPath == null) {
                pathUri = XmldbURI.create(location);
            } else {
                pathUri = XmldbURI.create(contextPath).append(location);
            }
        } catch (final IllegalArgumentException e) {
            // this is allowed if the location is already an absolute URI, below we will try using other schemes
            pathUri = null;
        }
        if (pathUri != null) {
            source = getSource_fromDb(broker, pathUri);
        }
    }
    /* /db */
    if (source == null && ((location.startsWith("/db") && !Files.exists(Paths.get(firstPathSegment(location)))) || (contextPath != null && contextPath.startsWith("/db") && !Files.exists(Paths.get(firstPathSegment(contextPath)))))) {
        final XmldbURI pathUri;
        if (contextPath == null) {
            pathUri = XmldbURI.create(location);
        } else {
            pathUri = XmldbURI.create(contextPath).append(location);
        }
        source = getSource_fromDb(broker, pathUri);
    }
    /* file:// or location without scheme (:/) is assumed to be a file */
    if (source == null && (location.startsWith("file:/") || !location.contains(":/"))) {
        source = getSource_fromFile(contextPath, location, checkXQEncoding);
    }
    /* final attempt - any other URL */
    if (source == null && !(location.startsWith(ClassLoaderSource.PROTOCOL) || location.startsWith(XmldbURI.XMLDB_URI_PREFIX) || location.startsWith("file:/"))) {
        try {
            final URL url = new URL(location);
            source = new URLSource(url);
        } catch (final MalformedURLException e) {
            return null;
        }
    }
    return source;
}

Example 45 with XmldbURI

use of org.exist.xmldb.XmldbURI in project exist by eXist-db.

the class CollectionOrderTest method assertOrderOfSubCollections.

private void assertOrderOfSubCollections(final BrokerPool pool, final List<String> subCollectionNames) throws EXistException, PermissionDeniedException, LockException {
    // iterate the collections ensuring they are in the same order as we created them
    try (final DBBroker broker = pool.get(Optional.of(pool.getSecurityManager().getSystemSubject()));
        final Txn transaction = pool.getTransactionManager().beginTransaction()) {
        try (final Collection testCollection = broker.openCollection(TEST_COLLECTION, Lock.LockMode.READ_LOCK)) {
            final Iterator<XmldbURI> subCollections = testCollection.collectionIterator(broker);
            int idx = 0;
            while (subCollections.hasNext()) {
                final XmldbURI subCollection = subCollections.next();
                final String subCollectionName = subCollectionNames.get(idx++);
                assertEquals("sub-Collection names are not equal at index: " + idx, subCollectionName, subCollection.lastSegment().toString());
            }
        }
        transaction.commit();
    }
}