/**
* Read bytes from an InputStream and generate SAX characters events in Base64 encoding. The
* InputStream is closed when done.
*
* <p>The caller has to close the stream if needed.
*/
public static void inputStreamToBase64Characters(InputStream is, ContentHandler contentHandler) {
try {
final OutputStream os = new ContentHandlerOutputStream(contentHandler, false);
NetUtils.copyStream(new BufferedInputStream(is), os);
os.close(); // necessary with ContentHandlerOutputStream to make sure all extra characters
// are written
} catch (Exception e) {
throw new OXFException(e);
}
}
public void write(SecureItemTable tbl, char[] password) throws IOException {
OutputStream os = new FileOutputStream(file);
OutputStream xmlout;
if (password.length == 0) {
xmlout = os;
os = null;
} else {
PBEKeySpec keyspec = new PBEKeySpec(password);
Cipher c;
try {
SecretKeyFactory fac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
SecretKey key = fac.generateSecret(keyspec);
c = Cipher.getInstance("PBEWithMD5AndDES");
c.init(Cipher.ENCRYPT_MODE, key, pbeSpec);
} catch (java.security.GeneralSecurityException exc) {
os.close();
IOException ioe = new IOException("Security exception during write");
ioe.initCause(exc);
throw ioe;
}
CipherOutputStream out = new CipherOutputStream(os, c);
xmlout = out;
}
try {
TransformerFactory tf = TransformerFactory.newInstance();
Transformer t = tf.newTransformer();
DOMSource src = new DOMSource(tbl.getDocument());
StringWriter writer = new StringWriter();
StreamResult sr = new StreamResult(writer);
t.transform(src, sr);
OutputStreamWriter osw = new OutputStreamWriter(xmlout, StandardCharsets.UTF_8);
osw.write(writer.toString());
osw.close();
} catch (Exception exc) {
IOException ioe = new IOException("Unable to serialize XML");
ioe.initCause(exc);
throw ioe;
} finally {
xmlout.close();
if (os != null) os.close();
}
tbl.setDirty(false);
return;
}
/**
* This method must be invoked at the end of processing. The streams are closed and their content
* is analyzed. Actual XSLT processing takes place here.
*/
@SuppressWarnings("unchecked")
void finishResponse() throws IOException {
if (writer != null) {
writer.close();
} else {
if (stream != null) stream.close();
}
/*
* If we're not in passthrough mode, then we need to finalize XSLT transformation.
*/
if (false == passthrough) {
if (stream != null) {
final byte[] bytes = ((DeferredOutputStream) stream).getBytes();
final boolean processingSuppressed =
(origRequest.getAttribute(XSLTFilterConstants.NO_XSLT_PROCESSING) != null)
| (origRequest.getParameter(XSLTFilterConstants.NO_XSLT_PROCESSING) != null);
if (processingSuppressed) {
// Just copy the buffered data to the output directly.
final OutputStream os = origResponse.getOutputStream();
os.write(bytes);
os.close();
} else {
// Otherwise apply XSLT transformation to it.
try {
processWithXslt(
bytes,
(Map<String, Object>) origRequest.getAttribute(XSLTFilterConstants.XSLT_PARAMS_MAP),
origResponse);
} catch (TransformerException e) {
final Throwable t = unwrapCause(e);
if (t instanceof IOException) {
throw (IOException) t;
}
filterError("Error applying stylesheet.", e);
}
}
}
}
}