Examples with ContentService org.alfresco.service.cmr.repository.ContentService used on opensource projects

Example 11 with ContentService

use of org.alfresco.service.cmr.repository.ContentService in project acs-community-packaging by Alfresco.

the class BaseDownloadContentServlet method processDownloadRequest.

/**
 * Processes the download request using the current context i.e. no authentication checks are made, it is presumed
 * they have already been done.
 *
 * @param req
 *           The HTTP request
 * @param res
 *           The HTTP response
 * @param allowLogIn
 *           Indicates whether guest users without access to the content should be redirected to the log in page. If
 *           <code>false</code>, a status 403 forbidden page is displayed instead.
 */
protected void processDownloadRequest(HttpServletRequest req, HttpServletResponse res, boolean allowLogIn, boolean transmitContent) throws ServletException, IOException {
    Log logger = getLogger();
    String uri = req.getRequestURI();
    if (logger.isDebugEnabled()) {
        String queryString = req.getQueryString();
        logger.debug("Processing URL: " + uri + ((queryString != null && queryString.length() > 0) ? ("?" + queryString) : ""));
    }
    uri = uri.substring(req.getContextPath().length());
    StringTokenizer t = new StringTokenizer(uri, "/");
    int tokenCount = t.countTokens();
    // skip servlet name
    t.nextToken();
    // attachment mode (either 'attach' or 'direct')
    String attachToken = t.nextToken();
    boolean attachment = URL_ATTACH.equals(attachToken) || URL_ATTACH_LONG.equals(attachToken);
    ServiceRegistry serviceRegistry = getServiceRegistry(getServletContext());
    // get or calculate the noderef and filename to download as
    NodeRef nodeRef;
    String filename;
    // do we have a path parameter instead of a NodeRef?
    String path = req.getParameter(ARG_PATH);
    if (path != null && path.length() != 0) {
        // process the name based path to resolve the NodeRef and the Filename element
        try {
            PathRefInfo pathInfo = resolveNamePath(getServletContext(), path);
            nodeRef = pathInfo.NodeRef;
            filename = pathInfo.Filename;
        } catch (IllegalArgumentException e) {
            Application.handleSystemError(getServletContext(), req, res, MSG_ERROR_NOT_FOUND, HttpServletResponse.SC_NOT_FOUND, logger);
            return;
        }
    } else {
        // a NodeRef must have been specified if no path has been found
        if (tokenCount < 6) {
            throw new IllegalArgumentException("Download URL did not contain all required args: " + uri);
        }
        // assume 'workspace' or other NodeRef based protocol for remaining URL elements
        StoreRef storeRef = new StoreRef(URLDecoder.decode(t.nextToken()), URLDecoder.decode(t.nextToken()));
        String id = URLDecoder.decode(t.nextToken());
        // build noderef from the appropriate URL elements
        nodeRef = new NodeRef(storeRef, id);
        if (tokenCount > 6) {
            // found additional relative path elements i.e. noderefid/images/file.txt
            // this allows a url to reference siblings nodes via a cm:name based relative path
            // solves the issue with opening HTML content containing relative URLs in HREF or IMG tags etc.
            List<String> paths = new ArrayList<String>(tokenCount - 5);
            while (t.hasMoreTokens()) {
                paths.add(URLDecoder.decode(t.nextToken()));
            }
            filename = paths.get(paths.size() - 1);
            try {
                NodeRef parentRef = serviceRegistry.getNodeService().getPrimaryParent(nodeRef).getParentRef();
                FileInfo fileInfo = serviceRegistry.getFileFolderService().resolveNamePath(parentRef, paths);
                nodeRef = fileInfo.getNodeRef();
            } catch (FileNotFoundException e) {
                Application.handleSystemError(getServletContext(), req, res, MSG_ERROR_NOT_FOUND, HttpServletResponse.SC_NOT_FOUND, logger);
                return;
            }
        } else {
            // filename is last remaining token
            filename = t.nextToken();
        }
    }
    // get qualified of the property to get content from - default to ContentModel.PROP_CONTENT
    QName propertyQName = ContentModel.PROP_CONTENT;
    String property = req.getParameter(ARG_PROPERTY);
    if (property != null && property.length() != 0) {
        propertyQName = QName.createQName(property);
    }
    if (logger.isDebugEnabled()) {
        logger.debug("Found NodeRef: " + nodeRef);
        logger.debug("Will use filename: " + filename);
        logger.debug("For property: " + propertyQName);
        logger.debug("With attachment mode: " + attachment);
    }
    // get the services we need to retrieve the content
    NodeService nodeService = serviceRegistry.getNodeService();
    ContentService contentService = serviceRegistry.getContentService();
    // Check that the node still exists
    if (!nodeService.exists(nodeRef)) {
        Application.handleSystemError(getServletContext(), req, res, MSG_ERROR_NOT_FOUND, HttpServletResponse.SC_NOT_FOUND, logger);
        return;
    }
    try {
        // check that the user has at least READ_CONTENT access - else redirect to an error or login page
        if (!checkAccess(req, res, nodeRef, PermissionService.READ_CONTENT, allowLogIn)) {
            return;
        }
        // check If-Modified-Since header and set Last-Modified header as appropriate
        Date modified = (Date) nodeService.getProperty(nodeRef, ContentModel.PROP_MODIFIED);
        if (modified != null) {
            long modifiedSince = req.getDateHeader(HEADER_IF_MODIFIED_SINCE);
            if (modifiedSince > 0L) {
                // round the date to the ignore millisecond value which is not supplied by header
                long modDate = (modified.getTime() / 1000L) * 1000L;
                if (modDate <= modifiedSince) {
                    if (logger.isDebugEnabled())
                        logger.debug("Returning 304 Not Modified.");
                    res.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
                    return;
                }
            }
            res.setDateHeader(HEADER_LAST_MODIFIED, modified.getTime());
            res.setHeader(HEADER_CACHE_CONTROL, "must-revalidate, max-age=0");
            res.setHeader(HEADER_ETAG, "\"" + Long.toString(modified.getTime()) + "\"");
        }
        if (attachment == true) {
            setHeaderContentDisposition(req, res, filename);
        }
        // get the content reader
        ContentReader reader = contentService.getReader(nodeRef, propertyQName);
        // ensure that it is safe to use
        reader = FileContentReader.getSafeContentReader(reader, Application.getMessage(req.getSession(), MSG_ERROR_CONTENT_MISSING), nodeRef, reader);
        String mimetype = reader.getMimetype();
        // fall back if unable to resolve mimetype property
        if (mimetype == null || mimetype.length() == 0) {
            MimetypeService mimetypeMap = serviceRegistry.getMimetypeService();
            mimetype = MIMETYPE_OCTET_STREAM;
            int extIndex = filename.lastIndexOf('.');
            if (extIndex != -1) {
                String ext = filename.substring(extIndex + 1);
                mimetype = mimetypeMap.getMimetype(ext);
            }
        }
        // explicitly set the content disposition header if the content is powerpoint
        if (!attachment && (mimetype.equals(POWER_POINT_2007_DOCUMENT_MIMETYPE) || mimetype.equals(POWER_POINT_DOCUMENT_MIMETYPE))) {
            setHeaderContentDisposition(req, res, filename);
        }
        // get the content and stream directly to the response output stream
        // assuming the repo is capable of streaming in chunks, this should allow large files
        // to be streamed directly to the browser response stream.
        res.setHeader(HEADER_ACCEPT_RANGES, "bytes");
        // for a GET request, transmit the content else just the headers are sent
        if (transmitContent) {
            try {
                boolean processedRange = false;
                String range = req.getHeader(HEADER_CONTENT_RANGE);
                if (range == null) {
                    range = req.getHeader(HEADER_RANGE);
                }
                if (range != null) {
                    if (logger.isDebugEnabled())
                        logger.debug("Found content range header: " + range);
                    // ensure the range header is starts with "bytes=" and process the range(s)
                    if (range.length() > 6) {
                        HttpRangeProcessor rangeProcessor = new HttpRangeProcessor(contentService);
                        processedRange = rangeProcessor.processRange(res, reader, range.substring(6), nodeRef, propertyQName, mimetype, req.getHeader(HEADER_USER_AGENT));
                    }
                }
                if (processedRange == false) {
                    if (logger.isDebugEnabled())
                        logger.debug("Sending complete file content...");
                    // set mimetype for the content and the character encoding for the stream
                    res.setContentType(mimetype);
                    res.setCharacterEncoding(reader.getEncoding());
                    // MNT-10642 Alfresco Explorer has javascript vulnerability opening HTML files
                    if (req.getRequestURI().contains("/d/d/") && (mimetype.equals("text/html") || mimetype.equals("application/xhtml+xml") || mimetype.equals("text/xml"))) {
                        String content = reader.getContentString();
                        if (mimetype.equals("text/html") || mimetype.equals("application/xhtml+xml")) {
                            // process with HTML stripper
                            content = StringUtils.stripUnsafeHTMLTags(content, false);
                        } else if (mimetype.equals("text/xml") && mimetype.equals("text/x-component")) {
                            // IE supports "behaviour" which means that css can load a .htc file that could
                            // contain XSS code in the form of jscript, vbscript etc, to stop it form being
                            // evaluated we set the contient type to text/plain
                            res.setContentType("text/plain");
                        }
                        String encoding = reader.getEncoding();
                        byte[] bytes = encoding != null ? content.getBytes(encoding) : content.getBytes();
                        res.setContentLength(bytes.length);
                        res.getOutputStream().write(bytes);
                        return;
                    }
                    // return the complete entity range
                    long size = reader.getSize();
                    res.setHeader(HEADER_CONTENT_RANGE, "bytes 0-" + Long.toString(size - 1L) + "/" + Long.toString(size));
                    res.setHeader(HEADER_CONTENT_LENGTH, Long.toString(size));
                    reader.getContent(res.getOutputStream());
                }
            } catch (SocketException e1) {
                // the client cut the connection - our mission was accomplished apart from a little error message
                if (logger.isDebugEnabled())
                    logger.debug("Client aborted stream read:\n\tnode: " + nodeRef + "\n\tcontent: " + reader);
            } catch (ContentIOException e2) {
                if (logger.isInfoEnabled())
                    logger.info("Failed stream read:\n\tnode: " + nodeRef + " due to: " + e2.getMessage());
            } catch (Throwable err) {
                if (err.getCause() instanceof SocketException) {
                    // the client cut the connection - our mission was accomplished apart from a little error message
                    if (logger.isDebugEnabled())
                        logger.debug("Client aborted stream read:\n\tnode: " + nodeRef + "\n\tcontent: " + reader);
                } else
                    throw err;
            }
        } else {
            if (logger.isDebugEnabled())
                logger.debug("HEAD request processed - no content sent.");
            res.getOutputStream().close();
        }
    } catch (Throwable err) {
        throw new AlfrescoRuntimeException("Error during download content servlet processing: " + err.getMessage(), err);
    }
}

Example 12 with ContentService

use of org.alfresco.service.cmr.repository.ContentService in project acs-community-packaging by Alfresco.

the class DownloadRawContentServlet method processRequest.

/**
 * Processes the request using the current context i.e. no
 * authentication checks are made, it is presumed they have already
 * been done.
 *
 * @param req The HTTP request
 * @param res The HTTP response
 */
private void processRequest(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    String uri = req.getRequestURI();
    String contentUrl = req.getParameter(ARG_CONTENT_URL);
    if (contentUrl == null || contentUrl.length() == 0) {
        throw new IllegalArgumentException("Download URL did not contain parameter '" + ARG_CONTENT_URL + "':" + uri);
    }
    String infoOnlyStr = req.getParameter(ARG_INFO_ONLY);
    boolean infoOnly = (infoOnlyStr == null) ? false : Boolean.parseBoolean(infoOnlyStr);
    ServiceRegistry serviceRegistry = getServiceRegistry(getServletContext());
    ContentService contentService = serviceRegistry.getContentService();
    // Attempt to get the reader
    ContentReader reader = null;
    try {
        reader = contentService.getRawReader(contentUrl);
        // If the content doesn't exist, generate an error
        if (!reader.exists()) {
            if (logger.isDebugEnabled()) {
                logger.debug("Returning 204 Not Found error...");
            }
            res.sendError(HttpServletResponse.SC_NO_CONTENT);
            return;
        }
    } catch (AccessDeniedException e) {
        if (logger.isDebugEnabled()) {
            logger.debug("Returning 403 Forbidden error after exception: ", e);
        }
        res.sendError(HttpServletResponse.SC_FORBIDDEN);
        return;
    }
    long readerSize = reader.getSize();
    Date readerLastModified = new Date(reader.getLastModified());
    String readerMimetype = reader.getMimetype();
    String readerEncoding = reader.getEncoding();
    Locale readerLocale = reader.getLocale();
    // Set the content info
    res.setHeader("alfresco.dr.size", DefaultTypeConverter.INSTANCE.convert(String.class, readerSize));
    res.setHeader("alfresco.dr.lastModified", DefaultTypeConverter.INSTANCE.convert(String.class, readerLastModified));
    res.setHeader("alfresco.dr.mimetype", readerMimetype);
    res.setHeader("alfresco.dr.encoding", readerEncoding);
    res.setHeader("alfresco.dr.locale", DefaultTypeConverter.INSTANCE.convert(String.class, readerLocale));
    // Pass the stream to the response, unless only the content info was requested
    if (infoOnly) {
        // Fill response details
        res.setContentType(DEFAULT_MIMETYPE);
        res.setCharacterEncoding(DEFAULT_ENCODING);
    } else {
        // Fill response details
        res.setContentType(readerMimetype);
        res.setCharacterEncoding(readerEncoding);
        try {
            OutputStream clientOs = res.getOutputStream();
            // Streams closed for us
            reader.getContent(clientOs);
        } catch (SocketException e1) {
            // Not a problem
            if (logger.isDebugEnabled()) {
                logger.debug("Client aborted stream read:\n" + "   Content URL: " + contentUrl);
            }
        } catch (ContentIOException e2) {
            // Not a problem
            if (logger.isDebugEnabled()) {
                logger.debug("Client aborted stream read:\n" + "   Content URL: " + contentUrl);
            }
        }
    }
}

Example 13 with ContentService

use of org.alfresco.service.cmr.repository.ContentService in project acs-community-packaging by Alfresco.

the class UploadContentServlet method doPut.

/**
 * @see javax.servlet.http.HttpServlet#doPut(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
 */
protected void doPut(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    if (logger.isDebugEnabled() == true) {
        String queryString = req.getQueryString();
        logger.debug("Authenticating request to URL: " + req.getRequestURI() + ((queryString != null && queryString.length() > 0) ? ("?" + queryString) : ""));
    }
    AuthenticationStatus status = servletAuthenticate(req, res, false);
    if (status == AuthenticationStatus.Failure || status == AuthenticationStatus.Guest) {
        res.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        return;
    }
    // Tokenise the URI
    String uri = req.getRequestURI();
    uri = uri.substring(req.getContextPath().length());
    StringTokenizer t = new StringTokenizer(uri, "/");
    int tokenCount = t.countTokens();
    // skip servlet name
    t.nextToken();
    // get or calculate the noderef and filename to download as
    NodeRef nodeRef = null;
    String filename = null;
    QName propertyQName = null;
    if (tokenCount == 2) {
        // filename is the only token
        filename = t.nextToken();
    } else if (tokenCount == 4 || tokenCount == 5) {
        // assume 'workspace' or other NodeRef based protocol for remaining URL
        // elements
        StoreRef storeRef = new StoreRef(t.nextToken(), t.nextToken());
        String id = t.nextToken();
        // build noderef from the appropriate URL elements
        nodeRef = new NodeRef(storeRef, id);
        if (tokenCount == 5) {
            // filename is last remaining token
            filename = t.nextToken();
        }
        // get qualified of the property to get content from - default to
        // ContentModel.PROP_CONTENT
        propertyQName = ContentModel.PROP_CONTENT;
        String property = req.getParameter(ARG_PROPERTY);
        if (property != null && property.length() != 0) {
            propertyQName = QName.createQName(property);
        }
    } else {
        logger.debug("Upload URL did not contain all required args: " + uri);
        res.sendError(HttpServletResponse.SC_EXPECTATION_FAILED);
        return;
    }
    // get the services we need to retrieve the content
    ServiceRegistry serviceRegistry = getServiceRegistry(getServletContext());
    ContentService contentService = serviceRegistry.getContentService();
    PermissionService permissionService = serviceRegistry.getPermissionService();
    MimetypeService mimetypeService = serviceRegistry.getMimetypeService();
    NodeService nodeService = serviceRegistry.getNodeService();
    InputStream is = req.getInputStream();
    BufferedInputStream inputStream = new BufferedInputStream(is);
    // Sort out the mimetype
    String mimetype = req.getParameter(ARG_MIMETYPE);
    if (mimetype == null || mimetype.length() == 0) {
        mimetype = MIMETYPE_OCTET_STREAM;
        if (filename != null) {
            MimetypeService mimetypeMap = serviceRegistry.getMimetypeService();
            int extIndex = filename.lastIndexOf('.');
            if (extIndex != -1) {
                String ext = filename.substring(extIndex + 1);
                mimetype = mimetypeService.getMimetype(ext);
            }
        }
    }
    // Get the encoding
    String encoding = req.getParameter(ARG_ENCODING);
    if (encoding == null || encoding.length() == 0) {
        // Get the encoding
        ContentCharsetFinder charsetFinder = mimetypeService.getContentCharsetFinder();
        Charset charset = charsetFinder.getCharset(inputStream, mimetype);
        encoding = charset.name();
    }
    // Get the locale
    Locale locale = I18NUtil.parseLocale(req.getParameter(ARG_LOCALE));
    if (locale == null) {
        locale = I18NUtil.getContentLocale();
        if (nodeRef != null) {
            ContentData contentData = (ContentData) nodeService.getProperty(nodeRef, propertyQName);
            if (contentData != null) {
                locale = contentData.getLocale();
            }
        }
    }
    if (logger.isDebugEnabled()) {
        if (nodeRef != null) {
            logger.debug("Found NodeRef: " + nodeRef.toString());
        }
        logger.debug("For property: " + propertyQName);
        logger.debug("File name: " + filename);
        logger.debug("Mimetype: " + mimetype);
        logger.debug("Encoding: " + encoding);
        logger.debug("Locale: " + locale);
    }
    // Check that the user has the permissions to write the content
    if (permissionService.hasPermission(nodeRef, PermissionService.WRITE_CONTENT) == AccessStatus.DENIED) {
        if (logger.isDebugEnabled() == true) {
            logger.debug("User does not have permissions to wrtie content for NodeRef: " + nodeRef.toString());
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Returning 403 Forbidden error...");
        }
        res.sendError(HttpServletResponse.SC_FORBIDDEN);
        return;
    }
    // Try and get the content writer
    ContentWriter writer = contentService.getWriter(nodeRef, propertyQName, true);
    if (writer == null) {
        if (logger.isDebugEnabled() == true) {
            logger.debug("Content writer cannot be obtained for NodeRef: " + nodeRef.toString());
        }
        res.sendError(HttpServletResponse.SC_EXPECTATION_FAILED);
        return;
    }
    // Set the mimetype, encoding and locale
    writer.setMimetype(mimetype);
    writer.setEncoding(encoding);
    if (locale != null) {
        writer.setLocale(locale);
    }
    // Stream the content into the repository
    writer.putContent(inputStream);
    if (logger.isDebugEnabled() == true) {
        logger.debug("Content details: " + writer.getContentData().toString());
    }
    // Set return status
    res.getWriter().write(writer.getContentData().toString());
    res.flushBuffer();
    if (logger.isDebugEnabled() == true) {
        logger.debug("UploadContentServlet done");
    }
}

Example 14 with ContentService

use of org.alfresco.service.cmr.repository.ContentService in project acs-community-packaging by Alfresco.

the class AdvancedSearchDialog method selectSearch.

/**
 * Action handler called when a saved search is selected by the user
 */
public void selectSearch(ActionEvent event) {
    if (NO_SELECTION.equals(properties.getSavedSearch()) == false) {
        // read an XML serialized version of the SearchContext object
        NodeRef searchSearchRef = new NodeRef(Repository.getStoreRef(), properties.getSavedSearch());
        ServiceRegistry services = Repository.getServiceRegistry(FacesContext.getCurrentInstance());
        ContentService cs = services.getContentService();
        try {
            if (services.getNodeService().exists(searchSearchRef)) {
                ContentReader reader = cs.getReader(searchSearchRef, ContentModel.PROP_CONTENT);
                SearchContext search = new SearchContext().fromXML(reader.getContentString());
                // if we get here we read the serialized object successfully
                // now setup the UI to match the new SearchContext object
                initialiseFromContext(search);
            }
        } catch (Throwable err) {
            Utils.addErrorMessage(MessageFormat.format(Application.getMessage(FacesContext.getCurrentInstance(), MSG_ERROR_RESTORE_SEARCH), err.getMessage()), err);
        }
    }
}

Example 15 with ContentService

use of org.alfresco.service.cmr.repository.ContentService in project acs-community-packaging by Alfresco.

the class SaveSearchDialog method saveNewSearchOK.

public String saveNewSearchOK(FacesContext newContext, String newOutcome) {
    String outcome = newOutcome;
    NodeRef searchesRef;
    if (properties.isSearchSaveGlobal()) {
        searchesRef = getGlobalSearchesRef();
    } else {
        searchesRef = getUserSearchesRef();
    }
    final SearchContext search = this.navigator.getSearchContext();
    if (searchesRef != null && search != null) {
        try {
            // FacesContext.getCurrentInstance();
            final FacesContext context = newContext;
            final NodeRef searchesRefFinal = searchesRef;
            RetryingTransactionCallback<Object> callback = new RetryingTransactionCallback<Object>() {

                public Object execute() throws Throwable {
                    // create new content node as the saved search object
                    Map<QName, Serializable> props = new HashMap<QName, Serializable>(2, 1.0f);
                    props.put(ContentModel.PROP_NAME, properties.getSearchName());
                    props.put(ContentModel.PROP_DESCRIPTION, properties.getSearchDescription());
                    ChildAssociationRef childRef = getNodeService().createNode(searchesRefFinal, ContentModel.ASSOC_CONTAINS, QName.createQName(NamespaceService.ALFRESCO_URI, QName.createValidLocalName(properties.getSearchName())), ContentModel.TYPE_CONTENT, props);
                    ContentService contentService = Repository.getServiceRegistry(context).getContentService();
                    ContentWriter writer = contentService.getWriter(childRef.getChildRef(), ContentModel.PROP_CONTENT, true);
                    // get a writer to our new node ready for XML content
                    writer.setMimetype(MimetypeMap.MIMETYPE_XML);
                    writer.setEncoding("UTF-8");
                    // output an XML serialized version of the SearchContext
                    // object
                    writer.putContent(search.toXML());
                    return null;
                }
            };
            callback.execute();
            properties.getCachedSavedSearches().clear();
            properties.setSavedSearch(null);
        } catch (Throwable e) {
            Utils.addErrorMessage(MessageFormat.format(Application.getMessage(newContext, MSG_ERROR_SAVE_SEARCH), e.getMessage()), e);
            outcome = null;
            this.isFinished = false;
            ReportedException.throwIfNecessary(e);
        }
    }
    return outcome;
}