Examples with MultipartStream org.apache.tomcat.util.http.fileupload.MultipartStream used on opensource projects

Example 1 with MultipartStream

use of org.apache.tomcat.util.http.fileupload.MultipartStream in project tomcat by apache.

the class FileItemIteratorImpl method findNextItem.

/**
 * Called for finding the next item, if any.
 *
 * @return True, if an next item was found, otherwise false.
 * @throws IOException An I/O error occurred.
 */
private boolean findNextItem() throws FileUploadException, IOException {
    if (eof) {
        return false;
    }
    if (currentItem != null) {
        currentItem.close();
        currentItem = null;
    }
    final MultipartStream multi = getMultiPartStream();
    for (; ; ) {
        final boolean nextPart;
        if (skipPreamble) {
            nextPart = multi.skipPreamble();
        } else {
            nextPart = multi.readBoundary();
        }
        if (!nextPart) {
            if (currentFieldName == null) {
                // Outer multipart terminated -> No more data
                eof = true;
                return false;
            }
            // Inner multipart terminated -> Return to parsing the outer
            multi.setBoundary(multiPartBoundary);
            currentFieldName = null;
            continue;
        }
        final FileItemHeaders headers = fileUploadBase.getParsedHeaders(multi.readHeaders());
        if (currentFieldName == null) {
            // We're parsing the outer multipart
            final String fieldName = fileUploadBase.getFieldName(headers);
            if (fieldName != null) {
                final String subContentType = headers.getHeader(FileUploadBase.CONTENT_TYPE);
                if (subContentType != null && subContentType.toLowerCase(Locale.ENGLISH).startsWith(FileUploadBase.MULTIPART_MIXED)) {
                    currentFieldName = fieldName;
                    // Multiple files associated with this field name
                    final byte[] subBoundary = fileUploadBase.getBoundary(subContentType);
                    multi.setBoundary(subBoundary);
                    skipPreamble = true;
                    continue;
                }
                final String fileName = fileUploadBase.getFileName(headers);
                currentItem = new FileItemStreamImpl(this, fileName, fieldName, headers.getHeader(FileUploadBase.CONTENT_TYPE), fileName == null, getContentLength(headers));
                currentItem.setHeaders(headers);
                progressNotifier.noteItem();
                itemValid = true;
                return true;
            }
        } else {
            final String fileName = fileUploadBase.getFileName(headers);
            if (fileName != null) {
                currentItem = new FileItemStreamImpl(this, fileName, currentFieldName, headers.getHeader(FileUploadBase.CONTENT_TYPE), false, getContentLength(headers));
                currentItem.setHeaders(headers);
                progressNotifier.noteItem();
                itemValid = true;
                return true;
            }
        }
        multi.discardBodyData();
    }
}

Example 2 with MultipartStream

use of org.apache.tomcat.util.http.fileupload.MultipartStream in project tomcat by apache.

the class FileItemIteratorImpl method init.

protected void init(final FileUploadBase fileUploadBase, @SuppressWarnings("unused") final RequestContext pRequestContext) throws FileUploadException, IOException {
    final String contentType = ctx.getContentType();
    if ((null == contentType) || (!contentType.toLowerCase(Locale.ENGLISH).startsWith(FileUploadBase.MULTIPART))) {
        throw new InvalidContentTypeException(String.format("the request doesn't contain a %s or %s stream, content type header is %s", FileUploadBase.MULTIPART_FORM_DATA, FileUploadBase.MULTIPART_MIXED, contentType));
    }
    final long requestSize = ((UploadContext) ctx).contentLength();
    // N.B. this is eventually closed in MultipartStream processing
    final InputStream input;
    if (sizeMax >= 0) {
        if (requestSize != -1 && requestSize > sizeMax) {
            throw new SizeLimitExceededException(String.format("the request was rejected because its size (%s) exceeds the configured maximum (%s)", Long.valueOf(requestSize), Long.valueOf(sizeMax)), requestSize, sizeMax);
        }
        // N.B. this is eventually closed in MultipartStream processing
        input = new LimitedInputStream(ctx.getInputStream(), sizeMax) {

            @Override
            protected void raiseError(final long pSizeMax, final long pCount) throws IOException {
                final FileUploadException ex = new SizeLimitExceededException(String.format("the request was rejected because its size (%s) exceeds the configured maximum (%s)", Long.valueOf(pCount), Long.valueOf(pSizeMax)), pCount, pSizeMax);
                throw new FileUploadIOException(ex);
            }
        };
    } else {
        input = ctx.getInputStream();
    }
    String charEncoding = fileUploadBase.getHeaderEncoding();
    if (charEncoding == null) {
        charEncoding = ctx.getCharacterEncoding();
    }
    multiPartBoundary = fileUploadBase.getBoundary(contentType);
    if (multiPartBoundary == null) {
        // avoid possible resource leak
        IOUtils.closeQuietly(input);
        throw new FileUploadException("the request was rejected because no multipart boundary was found");
    }
    progressNotifier = new MultipartStream.ProgressNotifier(fileUploadBase.getProgressListener(), requestSize);
    try {
        multiPartStream = new MultipartStream(input, multiPartBoundary, progressNotifier);
    } catch (final IllegalArgumentException iae) {
        // avoid possible resource leak
        IOUtils.closeQuietly(input);
        throw new InvalidContentTypeException(String.format("The boundary specified in the %s header is too long", FileUploadBase.CONTENT_TYPE), iae);
    }
    multiPartStream.setHeaderEncoding(charEncoding);
}