Examples with FileItemIterator org.apache.commons.fileupload.FileItemIterator used on opensource projects

Example 36 with FileItemIterator

use of org.apache.commons.fileupload.FileItemIterator in project pwm by pwm-project.

the class PwmRequest method readFileUploads.

public Map<String, FileUploadItem> readFileUploads(final int maxFileSize, final int maxItems) throws IOException, ServletException, PwmUnrecoverableException {
    final Map<String, FileUploadItem> returnObj = new LinkedHashMap<>();
    try {
        if (ServletFileUpload.isMultipartContent(this.getHttpServletRequest())) {
            final ServletFileUpload upload = new ServletFileUpload();
            final FileItemIterator iter = upload.getItemIterator(this.getHttpServletRequest());
            while (iter.hasNext() && returnObj.size() < maxItems) {
                final FileItemStream item = iter.next();
                final InputStream inputStream = item.openStream();
                final ByteArrayOutputStream baos = new ByteArrayOutputStream();
                final long length = IOUtils.copyLarge(inputStream, baos, 0, maxFileSize + 1);
                if (length > maxFileSize) {
                    final ErrorInformation errorInformation = new ErrorInformation(PwmError.ERROR_UNKNOWN, "upload file size limit exceeded");
                    LOGGER.error(this, errorInformation);
                    respondWithError(errorInformation);
                    return Collections.emptyMap();
                }
                final byte[] outputFile = baos.toByteArray();
                final FileUploadItem fileUploadItem = new FileUploadItem(item.getName(), item.getContentType(), new ImmutableByteArray(outputFile));
                returnObj.put(item.getFieldName(), fileUploadItem);
            }
        }
    } catch (Exception e) {
        LOGGER.error("error reading file upload: " + e.getMessage());
    }
    return Collections.unmodifiableMap(returnObj);
}

Example 37 with FileItemIterator

use of org.apache.commons.fileupload.FileItemIterator in project canvas_course_manager by tl-its-umich-edu.

the class CourseSupportProcess method getAttachmentContent.

private String getAttachmentContent() {
    // Create a new file upload handler
    ServletFileUpload upload = new ServletFileUpload();
    StringBuilder csv = new StringBuilder();
    try {
        // Parse the request
        FileItemIterator iter = upload.getItemIterator(request);
        while (iter.hasNext()) {
            FileItemStream item = iter.next();
            InputStream inputStream = item.openStream();
            BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
            String strLine;
            while ((strLine = br.readLine()) != null) {
                String csvContent = strLine.trim();
                csv.append(csvContent);
                csv.append(Utils.CONSTANT_LINE_FEED);
            }
            M_log.debug(csv);
        }
    } catch (FileUploadException | IOException e) {
        M_log.error("Error getting attachment content from the UI due to " + e.getMessage());
        return null;
    } catch (Exception e) {
        M_log.error("Error getting attachment content from the UI due to " + e.getMessage());
        return null;
    }
    return csv.toString();
}

Example 38 with FileItemIterator

use of org.apache.commons.fileupload.FileItemIterator in project jena by apache.

the class DataUploader method fileUploadMultipart.

/**
 * Process an HTTP upload of RDF files (triples or quads) with content type
 * "multipart/form-data" or "multipart/mixed".
 * <p>
 * Form data (content-disposition: form-data; name="...") is rejected.
 * <p>
 * Data is streamed straight into the destination graph or dataset.
 * <p>
 * This function assumes it is inside a transaction.
 */
private static UploadDetails fileUploadMultipart(HttpAction action, StreamRDF dest) {
    String base = ActionLib.wholeRequestURL(action.getRequest());
    ServletFileUpload upload = new ServletFileUpload();
    StreamRDFCounting countingDest = StreamRDFLib.count(dest);
    try {
        FileItemIterator iter = upload.getItemIterator(action.getRequest());
        while (iter.hasNext()) {
            FileItemStream fileStream = iter.next();
            if (fileStream.isFormField()) {
                // Form field - this code only supports multipart file upload.
                String fieldName = fileStream.getFieldName();
                InputStream stream = fileStream.openStream();
                String value = Streams.asString(stream, "UTF-8");
                // This code is currently used to put multiple files into a single destination.
                // Additional field/values do not make sense.
                ServletOps.errorBadRequest(format("Only files accepted in multipart file upload (got %s=%s)", fieldName, value));
                // errorBadRequest does not return.
                return null;
            }
            InputStream input = fileStream.openStream();
            // Content-Type:
            String contentTypeHeader = fileStream.getContentType();
            ContentType ct = ContentType.create(contentTypeHeader);
            Lang lang = null;
            if (!matchContentType(ctTextPlain, ct))
                lang = RDFLanguages.contentTypeToLang(ct.getContentTypeStr());
            if (lang == null) {
                // Not a recognized Content-Type. Look at file extension.
                String name = fileStream.getName();
                if (name == null || name.equals(""))
                    ServletOps.errorBadRequest("No name for content - can't determine RDF syntax");
                lang = RDFLanguages.pathnameToLang(name);
                if (name.endsWith(".gz"))
                    input = new GZIPInputStream(input);
            }
            if (lang == null)
                // Desperate.
                lang = RDFLanguages.RDFXML;
            String printfilename = fileStream.getName();
            if (printfilename == null || printfilename.equals(""))
                printfilename = "<none>";
            // count just this step
            StreamRDFCounting countingDest2 = StreamRDFLib.count(countingDest);
            try {
                ActionLib.parse(action, countingDest2, input, lang, base);
                UploadDetails details1 = new UploadDetails(countingDest2.count(), countingDest2.countTriples(), countingDest2.countQuads());
                action.log.info(format("[%d] Filename: %s, Content-Type=%s, Charset=%s => %s : %s", action.id, printfilename, ct.getContentTypeStr(), ct.getCharset(), lang.getName(), details1.detailsStr()));
            } catch (RiotParseException ex) {
                action.log.info(format("[%d] Filename: %s, Content-Type=%s, Charset=%s => %s : %s", action.id, printfilename, ct.getContentTypeStr(), ct.getCharset(), lang.getName(), ex.getMessage()));
                ActionLib.consumeBody(action);
                throw ex;
            }
        }
    } catch (ActionErrorException ex) {
        throw ex;
    } catch (Exception ex) {
        ServletOps.errorOccurred(ex.getMessage());
    }
    // Overall results.
    UploadDetails details = new UploadDetails(countingDest.count(), countingDest.countTriples(), countingDest.countQuads());
    return details;
}

Example 39 with FileItemIterator

use of org.apache.commons.fileupload.FileItemIterator in project stanbol by apache.

the class ContentItemReader method createContentItem.

/**
 * Creates a ContentItem
 * @param id the ID or <code>null</code> if not known
 * @param metadata the metadata or <code>null</code> if not parsed. NOTE that
 * if <code>id == null</code> also <code>metadata == null</code> and
 * <code>id != null</code> also <code>metadata != null</code>.
 * @param content the {@link FileItemStream} of the MIME part representing
 * the content. If {@link FileItemStream#getContentType()} is compatible with
 * "multipart/*" than this will further parse for multiple parsed content
 * version. In any other case the contents of the parsed {@link FileItemStream}
 * will be directly add as content for the {@link ContentItem} created by
 * this method.
 * @param parsedContentParts used to add the IDs of parsed contentParts
 * @return the created content item
 * @throws IOException on any error while accessing the contents of the parsed
 * {@link FileItemStream}
 * @throws FileUploadException if the parsed contents are not correctly
 * encoded Multipart MIME
 */
private ContentItem createContentItem(IRI id, Graph metadata, FileItemStream content, Set<String> parsedContentParts) throws IOException, FileUploadException {
    MediaType partContentType = MediaType.valueOf(content.getContentType());
    ContentItem contentItem = null;
    ContentItemFactory ciFactory = getContentItemFactory();
    if (MULTIPART.isCompatible(partContentType)) {
        log.debug("  - multiple (alternate) ContentParts");
        // multiple contentParts are parsed
        FileItemIterator contentPartIterator = fu.getItemIterator(new MessageBodyReaderContext(content.openStream(), partContentType));
        while (contentPartIterator.hasNext()) {
            FileItemStream fis = contentPartIterator.next();
            if (contentItem == null) {
                log.debug("  - create ContentItem {} for content (type:{})", id, fis.getContentType());
                contentItem = ciFactory.createContentItem(id, new StreamSource(fis.openStream(), fis.getContentType()), metadata);
            } else {
                log.debug("  - create Blob for content (type:{})", fis.getContentType());
                Blob blob = ciFactory.createBlob(new StreamSource(fis.openStream(), fis.getContentType()));
                IRI contentPartId = null;
                if (fis.getFieldName() != null && !fis.getFieldName().isEmpty()) {
                    contentPartId = new IRI(fis.getFieldName());
                } else {
                    // generating a random ID might break metadata
                    // TODO maybe we should throw an exception instead
                    contentPartId = new IRI("urn:contentpart:" + randomUUID());
                }
                log.debug("    ... add Blob {} to ContentItem {} with content (type:{})", new Object[] { contentPartId, id, fis.getContentType() });
                contentItem.addPart(contentPartId, blob);
                parsedContentParts.add(contentPartId.getUnicodeString());
            }
        }
    } else {
        log.debug("  - create ContentItem {} for content (type:{})", id, content.getContentType());
        contentItem = ciFactory.createContentItem(id, new StreamSource(content.openStream(), content.getContentType()), metadata);
    }
    // add the URI of the main content to the parsed contentParts
    parsedContentParts.add(contentItem.getPartUri(0).getUnicodeString());
    return contentItem;
}

Example 40 with FileItemIterator

use of org.apache.commons.fileupload.FileItemIterator in project getting-started-java by GoogleCloudPlatform.

the class CreateBookServlet method doPost.

@Override
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    assert ServletFileUpload.isMultipartContent(req);
    CloudStorageHelper storageHelper = (CloudStorageHelper) getServletContext().getAttribute("storageHelper");
    String newImageUrl = null;
    Map<String, String> params = new HashMap<String, String>();
    try {
        FileItemIterator iter = new ServletFileUpload().getItemIterator(req);
        while (iter.hasNext()) {
            FileItemStream item = iter.next();
            if (item.isFormField()) {
                params.put(item.getFieldName(), Streams.asString(item.openStream()));
            } else if (!Strings.isNullOrEmpty(item.getName())) {
                newImageUrl = storageHelper.uploadFile(item, System.getenv("BOOKSHELF_BUCKET"));
            }
        }
    } catch (FileUploadException e) {
        throw new IOException(e);
    }
    String createdByString = "";
    String createdByIdString = "";
    HttpSession session = req.getSession();
    if (session.getAttribute("userEmail") != null) {
        // Does the user have a logged in session?
        createdByString = (String) session.getAttribute("userEmail");
        createdByIdString = (String) session.getAttribute("userId");
    }
    Book book = new Book.Builder().author(params.get("author")).description(params.get("description")).publishedDate(params.get("publishedDate")).title(params.get("title")).imageUrl(null == newImageUrl ? params.get("imageUrl") : newImageUrl).createdBy(createdByString).createdById(createdByIdString).build();
    BookDao dao = (BookDao) this.getServletContext().getAttribute("dao");
    String id = dao.createBook(book);
    logger.log(Level.INFO, "Created book {0}", book);
    resp.sendRedirect("/read?id=" + id);
}