public MediaResource handle(String relPath, HttpServletRequest request) {
if (log.isDebug()) log.debug("CPComponent Mapper relPath=" + relPath);
VFSItem currentItem = mapperRootContainer.resolve(relPath);
if (currentItem == null || (currentItem instanceof VFSContainer)) {
return new NotFoundMediaResource(relPath);
}
VFSMediaResource vmr = new VFSMediaResource((VFSLeaf) currentItem);
String encoding = SimpleHtmlParser.extractHTMLCharset(((VFSLeaf) currentItem));
if (log.isDebug()) log.debug("CPComponent Mapper set encoding=" + encoding);
vmr.setEncoding(encoding); //
return vmr;
}
@Override
public SearchResults call() throws ParseException {
IndexSearcher searcher = null;
try {
boolean debug = log.isDebug();
if (!searchService.existIndex()) {
log.warn("Index does not exist, can't search for queryString: " + queryString);
throw new ServiceNotAvailableException("Index does not exist");
}
if (debug) log.debug("queryString=" + queryString);
searcher = searchService.getIndexSearcher();
BooleanQuery query = searchService.createQuery(queryString, condQueries);
if (debug) log.debug("query=" + query);
long startTime = System.currentTimeMillis();
int n = SearchServiceFactory.getService().getSearchModuleConfig().getMaxHits();
TopDocs docs = searcher.search(query, n);
long queryTime = System.currentTimeMillis() - startTime;
if (debug) log.debug("hits.length()=" + docs.totalHits);
SearchResultsImpl searchResult =
new SearchResultsImpl(
searchService.getMainIndexer(),
searcher,
docs,
query,
searchService.getAnalyzer(),
identity,
roles,
firstResult,
maxResults,
doHighlighting,
false);
searchResult.setQueryTime(queryTime);
searchResult.setNumberOfIndexDocuments(docs.totalHits);
if (debug) log.debug("found=" + docs.totalHits);
return searchResult;
} catch (ParseException pex) {
throw pex;
} catch (Exception naex) {
log.error("", naex);
return null;
} finally {
searchService.releaseIndexSearcher(searcher);
DBFactory.getInstance().commitAndCloseSession();
}
}
private boolean isSameFile(VFSLeaf currentFile, VersionsFileImpl versions) {
boolean same = false;
if (versions.getRevisions() != null && !versions.getRevisions().isEmpty()) {
VFSRevision lastRevision = versions.getRevisions().get(versions.getRevisions().size() - 1);
long lastSize = lastRevision.getSize();
long currentSize = currentFile.getSize();
if (currentSize == lastSize
&& currentSize > 0
&& lastRevision instanceof RevisionFileImpl
&& currentFile instanceof LocalFileImpl) {
RevisionFileImpl lastRev = ((RevisionFileImpl) lastRevision);
LocalFileImpl current = (LocalFileImpl) currentFile;
// can be the same file
try {
Checksum cm1 =
FileUtils.checksum(((LocalFileImpl) lastRev.getFile()).getBasefile(), new Adler32());
Checksum cm2 = FileUtils.checksum(current.getBasefile(), new Adler32());
same = cm1.getValue() == cm2.getValue();
} catch (IOException e) {
log.debug("Error calculating the checksum of files");
}
}
}
return same;
}
/**
* Copy an InputStream to an OutputStream, until EOF. Use only when you don't know the length.
*
* @param source InputStream, left open.
* @param target OutputStream, left open.
* @return true if the copy was successful.
*/
@Deprecated
public static boolean copy(InputStream source, OutputStream target) {
try {
int chunkSize = buffSize;
// code will work even when chunkSize = 0 or chunks = 0;
// Even for small files, we allocate a big buffer, since we
// don't know the size ahead of time.
byte[] ba = new byte[chunkSize];
while (true) {
int bytesRead = readBlocking(source, ba, 0, chunkSize);
if (bytesRead > 0) {
target.write(ba, 0, bytesRead);
} else {
break;
} // hit eof
} // end while
} catch (MalformedStreamException e) {
throw new OLATRuntimeException("Could not read stream", e);
} catch (IOException e) {
// don't log as error - happens all the time (ClientAbortException)
if (log.isDebug()) log.debug("Could not copy stream::" + e.getMessage());
return false;
}
return true;
} // end copy
/**
* Copy an InputStream to an OutputStream.
*
* @param source InputStream, left open.
* @param target OutputStream, left open.
* @param length how many bytes to copy.
* @return true if the copy was successful.
*/
public static boolean copy(InputStream source, OutputStream target, long length) {
if (length == 0) return true;
try {
int chunkSize = (int) Math.min(buffSize, length);
long chunks = length / chunkSize;
int lastChunkSize = (int) (length % chunkSize);
// code will work even when chunkSize = 0 or chunks = 0;
byte[] ba = new byte[chunkSize];
for (long i = 0; i < chunks; i++) {
int bytesRead = readBlocking(source, ba, 0, chunkSize);
if (bytesRead != chunkSize) {
throw new IOException();
}
target.write(ba);
} // end for
// R E A D / W R I T E last chunk, if any
if (lastChunkSize > 0) {
int bytesRead = readBlocking(source, ba, 0, lastChunkSize);
if (bytesRead != lastChunkSize) {
throw new IOException();
}
target.write(ba, 0, lastChunkSize);
} // end if
} catch (IOException e) {
// don't log as error - happens all the time (ClientAbortException)
if (log.isDebug())
log.debug("Could not copy stream::" + e.getMessage() + " with length::" + length);
return false;
}
return true;
} // end copy
@Override
public boolean isSafelyAllowed(HttpServletRequest request, String safeExamBrowserKeys) {
boolean safe = false;
boolean debug = log.isDebug();
if (StringHelper.containsNonWhitespace(safeExamBrowserKeys)) {
String safeExamHash = request.getHeader("x-safeexambrowser-requesthash");
String url = request.getRequestURL().toString();
for (StringTokenizer tokenizer = new StringTokenizer(safeExamBrowserKeys);
tokenizer.hasMoreTokens() && !safe; ) {
String safeExamBrowserKey = tokenizer.nextToken();
String hash = Encoder.sha256Exam(url + safeExamBrowserKey);
if (safeExamHash != null && safeExamHash.equals(hash)) {
safe = true;
}
if (debug) {
log.debug(
(safeExamHash.equals(hash) ? "Success" : "Failed")
+ " : "
+ safeExamHash
+ " (Header) "
+ hash
+ " (Calculated)");
}
}
} else {
safe = true;
}
return safe;
}
/**
* Delete all ResultSet for certain identity.
*
* @param identity
*/
public void deleteUserData(Identity identity, String newDeletedUserName) {
List<QTIResultSet> qtiResults = findQtiResultSets(identity);
for (QTIResultSet set : qtiResults) {
deleteResultSet(set);
}
if (log.isDebug()) {
log.debug("Delete all QTI result data in db for identity=" + identity);
}
}
/**
* @see org.olat.core.gui.components.Component#doDispatchRequest(org.olat.core.gui.UserRequest)
*/
@Override
protected void doDispatchRequest(UserRequest ureq) {
setDirty(true);
String cmd = ureq.getParameter(VelocityContainer.COMMAND_ID);
if (log.isDebug()) {
log.debug("***RATING_CLICKED*** dispatchID::" + ureq.getComponentID() + " rating::" + cmd);
}
try {
float rating = Float.parseFloat(cmd);
// update GUI
this.setCurrentRating(rating);
// notify listeners
Event event = new RatingEvent(rating);
fireEvent(ureq, event);
} catch (NumberFormatException e) {
log.error("Error while parsing rating value::" + cmd);
}
}
/**
* Copies the stream to the target leaf.
*
* @param source
* @param target
* @param closeInput set to false if it's a ZipInputStream
* @return True on success, false on failure
*/
public static boolean copyContent(InputStream inStream, VFSLeaf target, boolean closeInput) {
boolean successful;
if (inStream != null && target != null) {
InputStream in = new BufferedInputStream(inStream);
OutputStream out = new BufferedOutputStream(target.getOutputStream(false));
// write the input to the output
try {
byte[] buf = new byte[FileUtils.BSIZE];
int i = 0;
while ((i = in.read(buf)) != -1) {
out.write(buf, 0, i);
}
successful = true;
} catch (IOException e) {
// something went wrong.
successful = false;
log.error(
"Error while copying content from source: "
+ inStream
+ " to target: "
+ target.getName(),
e);
} finally {
// Close streams
try {
if (out != null) {
out.flush();
out.close();
}
if (closeInput && in != null) {
in.close();
}
} catch (IOException ex) {
log.error("Error while closing/cleaning up in- and output streams", ex);
}
}
} else {
// source or target is null
successful = false;
if (log.isDebug())
log.debug("Either the source or the target is null. Content of leaf cannot be copied.");
}
return successful;
}
/**
* Copy the contents of the specified input stream to the specified output stream, and ensure that
* both streams are closed before returning (even in the face of an exception).
*
* @param istream The input stream to read from
* @param ostream The output stream to write to
* @param start Start of the range which will be copied
* @param end End of the range which will be copied
* @return Exception which occurred during processing
*/
protected IOException copyRange(
InputStream istream, ServletOutputStream ostream, long start, long end) {
if (log.isDebug()) {
log.debug("Serving bytes:" + start + "-" + end);
}
long skipped = 0;
try {
skipped = istream.skip(start);
} catch (IOException e) {
return e;
}
if (skipped < start) {
return new IOException(
"defaultservlet.skipfail" + Long.valueOf(skipped) + Long.valueOf(start));
}
IOException exception = null;
long bytesToRead = end - start + 1;
byte buffer[] = new byte[input];
int len = buffer.length;
while ((bytesToRead > 0) && (len >= buffer.length)) {
try {
len = istream.read(buffer);
if (bytesToRead >= len) {
ostream.write(buffer, 0, len);
bytesToRead -= len;
} else {
ostream.write(buffer, 0, (int) bytesToRead);
bytesToRead = 0;
}
} catch (IOException e) {
exception = e;
len = -1;
}
if (len < buffer.length) break;
}
return exception;
}
/**
* copy in, copy out (leaves both streams open)
*
* <p>
*
* @see FileUtils.getBos() which creates a matching BufferedOutputStream
* @param in BuferedInputStream
* @param out BufferedOutputStream
* @param wt What this I/O is about
*/
public static long cpio(BufferedInputStream in, BufferedOutputStream out, String wt)
throws IOException {
byte[] buffer = new byte[BSIZE];
int c;
long tot = 0;
long s = System.nanoTime();
while ((c = in.read(buffer, 0, buffer.length)) != -1) {
out.write(buffer, 0, c);
tot += c;
}
long tim = System.nanoTime() - s;
double dtim =
tim == 0 ? 0.5 : tim; // avg of those less than 1 nanoseconds is taken as 0.5 nanoseconds
double bps = tot * 1000 * 1000 / dtim;
log.debug(
String.format(
"cpio %,13d bytes %6.2f ms avg %6.1f Mbps %s%n",
tot, dtim / 1000 / 1000, bps / 1024, wt));
return tot;
}
public static Document createDocument(
final SearchResourceContext searchResourceContext, final WikiPage wikiPage) {
final WikiPageDocument wikiPageDocument = new WikiPageDocument();
final long userId = wikiPage.getInitalAuthor();
if (userId != 0) {
final Identity identity = identityManager.loadIdentityByKey(Long.valueOf(userId));
wikiPageDocument.setAuthor(identity.getName());
}
wikiPageDocument.setTitle(wikiPage.getPageName());
wikiPageDocument.setContent(getContent(wikiPage));
wikiPageDocument.setCreatedDate(new Date(wikiPage.getCreationTime()));
wikiPageDocument.setLastChange(new Date(wikiPage.getModificationTime()));
wikiPageDocument.setResourceUrl(searchResourceContext.getResourceUrl());
wikiPageDocument.setDocumentType(searchResourceContext.getDocumentType());
wikiPageDocument.setCssIcon("o_wiki_icon");
wikiPageDocument.setParentContextType(searchResourceContext.getParentContextType());
wikiPageDocument.setParentContextName(searchResourceContext.getParentContextName());
if (log.isDebug()) {
log.debug(wikiPageDocument.toString());
}
return wikiPageDocument.getLuceneDocument();
}
private String getRelPath(VFSItem item) {
String relPath = null;
if (item instanceof NamedContainerImpl) {
item = ((NamedContainerImpl) item).getDelegate();
}
if (item instanceof MergeSource) {
item = ((MergeSource) item).getRootWriteContainer();
}
if (item instanceof OlatRelPathImpl) {
relPath = ((OlatRelPathImpl) item).getRelPath();
} else if (item instanceof LocalImpl) {
LocalImpl impl = (LocalImpl) item;
String absolutPath = impl.getBasefile().getAbsolutePath();
if (absolutPath.startsWith(getCanonicalRoot())) {
relPath = absolutPath.substring(getCanonicalRoot().length());
}
Path path = impl.getBasefile().toPath();
Path relativePath = getCanonicalRootFile().toPath().relativize(path);
String relPath2 = "/" + relativePath.toString();
log.debug(relPath + " :: " + relPath2);
}
return relPath;
}
/**
* @see
* org.olat.search.service.indexer.AbstractHierarchicalIndexer#doIndex(org.olat.search.service.SearchResourceContext,
* java.lang.Object, org.olat.search.service.indexer.OlatFullIndexer)
*/
@Override
public void doIndex(
SearchResourceContext parentResourceContext, Object parentObject, OlatFullIndexer indexWriter)
throws IOException, InterruptedException {
if (!ContextHelpModule.isContextHelpEnabled()) {
// don't index context help when disabled
return;
}
long startTime = System.currentTimeMillis();
Set<String> helpPageIdentifyers = ContextHelpModule.getAllContextHelpPages();
Set<String> languages = I18nModule.getEnabledLanguageKeys();
if (log.isDebug())
log.debug(
"ContextHelpIndexer helpPageIdentifyers.size::"
+ helpPageIdentifyers.size()
+ " and languages.size::"
+ languages.size());
// loop over all help pages
for (String helpPageIdentifyer : helpPageIdentifyers) {
String[] identifyerSplit = helpPageIdentifyer.split(":");
String bundleName = identifyerSplit[0];
String page = identifyerSplit[1];
// fxdiff: FXOLAT-221: don't use velocity on images
if (page == null || !page.endsWith(".html")) {
continue;
}
// Translator with default locale. Locale is set to each language in the
// language iteration below
Translator pageTranslator = new PackageTranslator(bundleName, I18nModule.getDefaultLocale());
// Open velocity page for this help page
String pagePath = bundleName.replace('.', '/') + ContextHelpModule.CHELP_DIR + page;
VelocityContainer container =
new VelocityContainer("contextHelpPageVC", pagePath, pageTranslator, null);
Context ctx = container.getContext();
GlobalSettings globalSettings =
new GlobalSettings() {
public int getFontSize() {
return 100;
}
public AJAXFlags getAjaxFlags() {
return new EmptyAJAXFlags();
}
public ComponentRenderer getComponentRendererFor(Component source) {
return null;
}
public boolean isIdDivsForced() {
return false;
}
};
Renderer renderer =
Renderer.getInstance(
container, pageTranslator, new EmptyURLBuilder(), null, globalSettings);
// Add render decorator with helper methods
VelocityRenderDecorator vrdec = new VelocityRenderDecorator(renderer, container, null);
ctx.put("r", vrdec);
// Add empty static dir url - only used to not generate error messages
ctx.put("chelpStaticDirUrl", "");
// Create document for each language using the velocity context
for (String langCode : languages) {
Locale locale = I18nManager.getInstance().getLocaleOrNull(langCode);
String relPagePath = langCode + "/" + bundleName + "/" + page;
if (log.isDebug()) log.debug("Indexing help page with path::" + relPagePath);
SearchResourceContext searchResourceContext =
new SearchResourceContext(parentResourceContext);
searchResourceContext.setBusinessControlFor(
OresHelper.createOLATResourceableType(
ContextHelpModule.class.getSimpleName())); // to match the list of indexer
// Create context help document and index now, set translator to current locale
pageTranslator.setLocale(locale);
Document document =
ContextHelpDocument.createDocument(
searchResourceContext, bundleName, page, pageTranslator, ctx, pagePath);
indexWriter.addDocument(document);
}
IOUtils.closeQuietly(vrdec);
}
long indexTime = System.currentTimeMillis() - startTime;
if (log.isDebug()) log.debug("ContextHelpIndexer finished in " + indexTime + " ms");
}
/**
* Serve the specified resource, optionally including the data content.
*
* @param request The servlet request we are processing
* @param response The servlet response we are creating
* @param content Should the content be included?
* @param encoding The encoding to use if it is necessary to access the source as characters
* rather than as bytes
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet-specified error occurs
*/
protected void serveResource(
HttpServletRequest request, HttpServletResponse response, boolean content, String encoding)
throws IOException, ServletException {
boolean serveContent = content;
boolean debug = log.isDebug();
// Identify the requested resource path
String path = getRelativePath(request);
if (debug) {
if (serveContent)
log.debug(
"DefaultServlet.serveResource: Serving resource '" + path + "' headers and data");
else log.debug("DefaultServlet.serveResource: Serving resource '" + path + "' headers only");
}
WebResourceRoot resources = getResources(request);
WebResource resource = resources.getResource(path);
if (!resource.exists()) {
// Check if we're included so we can return the appropriate
// missing resource name in the error
String requestUri = (String) request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
if (requestUri == null) {
requestUri = request.getRequestURI();
} else {
// We're included
// SRV.9.3 says we must throw a FNFE
throw new FileNotFoundException("defaultServlet.missingResource");
}
response.sendError(HttpServletResponse.SC_NOT_FOUND, requestUri);
return;
}
// If the resource is not a collection, and the resource path
// ends with "/" or "\", return NOT FOUND
if (resource.isFile() && path.endsWith("/") || path.endsWith("\\")) {
// Check if we're included so we can return the appropriate
// missing resource name in the error
String requestUri = (String) request.getAttribute(RequestDispatcher.INCLUDE_REQUEST_URI);
if (requestUri == null) {
requestUri = request.getRequestURI();
}
response.sendError(HttpServletResponse.SC_NOT_FOUND, requestUri);
return;
}
boolean isError = response.getStatus() >= HttpServletResponse.SC_BAD_REQUEST;
boolean included = false;
// Check if the conditions specified in the optional If headers are
// satisfied.
if (resource.isFile()) {
// Checking If headers
included = (request.getAttribute(RequestDispatcher.INCLUDE_CONTEXT_PATH) != null);
if (!included && !isError && !checkIfHeaders(request, response, resource)) {
return;
}
}
// Find content type.
String contentType = resource.getMimeType();
if (contentType == null) {
contentType = request.getServletContext().getMimeType(resource.getName());
resource.setMimeType(contentType);
}
// These need to reflect the original resource, not the potentially
// gzip'd version of the resource so get them now if they are going to
// be needed later
String eTag = null;
String lastModifiedHttp = null;
if (resource.isFile() && !isError) {
eTag = resource.getETag();
lastModifiedHttp = resource.getLastModifiedHttp();
}
// Serve a gzipped version of the file if present
boolean usingGzippedVersion = false;
if (gzip && !included && resource.isFile() && !path.endsWith(".gz")) {
WebResource gzipResource = resources.getResource(path + ".gz");
if (gzipResource.exists() && gzipResource.isFile()) {
Collection<String> varyHeaders = response.getHeaders("Vary");
boolean addRequired = true;
for (String varyHeader : varyHeaders) {
if ("*".equals(varyHeader) || "accept-encoding".equalsIgnoreCase(varyHeader)) {
addRequired = false;
break;
}
}
if (addRequired) {
response.addHeader("Vary", "accept-encoding");
}
if (checkIfGzip(request)) {
response.addHeader("Content-Encoding", "gzip");
resource = gzipResource;
usingGzippedVersion = true;
}
}
}
ArrayList<Range> ranges = null;
long contentLength = -1L;
if (resource.isDirectory()) {
contentType = "text/html;charset=UTF-8";
} else {
if (!isError) {
if (useAcceptRanges) {
// Accept ranges header
response.setHeader("Accept-Ranges", "bytes");
}
// Parse range specifier
ranges = parseRange(request, response, resource);
// ETag header
response.setHeader("ETag", eTag);
// Last-Modified header
response.setHeader("Last-Modified", lastModifiedHttp);
}
// Get content length
contentLength = resource.getContentLength();
// Special case for zero length files, which would cause a
// (silent) ISE when setting the output buffer size
if (contentLength == 0L) {
serveContent = false;
}
}
ServletOutputStream ostream = null;
PrintWriter writer = null;
if (serveContent) {
// Trying to retrieve the servlet output stream
try {
ostream = response.getOutputStream();
} catch (IllegalStateException e) {
// If it fails, we try to get a Writer instead if we're
// trying to serve a text file
if (!usingGzippedVersion
&& ((contentType == null)
|| (contentType.startsWith("text"))
|| (contentType.endsWith("xml"))
|| (contentType.contains("/javascript")))) {
writer = response.getWriter();
// Cannot reliably serve partial content with a Writer
ranges = FULL;
} else {
throw e;
}
}
}
// Check to see if a Filter, Valve of wrapper has written some content.
// If it has, disable range requests and setting of a content length
// since neither can be done reliably.
ServletResponse r = response;
long contentWritten = 0;
while (r instanceof ServletResponseWrapper) {
r = ((ServletResponseWrapper) r).getResponse();
}
if (contentWritten > 0) {
ranges = FULL;
}
if (resource.isDirectory()
|| isError
|| ((ranges == null || ranges.isEmpty()) && request.getHeader("Range") == null)
|| ranges == FULL) {
// Set the appropriate output headers
if (contentType != null) {
if (debug) log.debug("DefaultServlet.serveFile: contentType='" + contentType + "'");
response.setContentType(contentType);
}
if (resource.isFile() && contentLength >= 0 && (!serveContent || ostream != null)) {
if (debug) log.debug("DefaultServlet.serveFile: contentLength=" + contentLength);
// Don't set a content length if something else has already
// written to the response.
if (contentWritten == 0) {
response.setContentLengthLong(contentLength);
}
}
InputStream renderResult = null;
if (resource.isDirectory()) {
if (serveContent) {
// Serve the directory browser
renderResult = null; // TODO tomcat render(getPathPrefix(request), resource);
}
}
// Copy the input stream to our output stream (if requested)
if (serveContent) {
resource.increaseDownloadCount();
try {
response.setBufferSize(output);
} catch (IllegalStateException e) {
// Silent catch
}
if (ostream == null) {
// Output via a writer so can't use sendfile or write
// content directly.
if (resource.isDirectory()) {
renderResult = null; // render(getPathPrefix(request), resource);
} else {
renderResult = resource.getInputStream();
}
copy(resource, renderResult, writer, encoding);
} else {
// Output is via an InputStream
if (resource.isDirectory()) {
renderResult = null; // render(getPathPrefix(request), resource);
} else {
renderResult = resource.getInputStream();
}
// If a stream was configured, it needs to be copied to
// the output (this method closes the stream)
if (renderResult != null) {
copy(renderResult, ostream);
}
}
}
} else {
// download counter
resource.increaseDownloadCount();
if ((ranges == null) || (ranges.isEmpty())) return;
// Partial content response.
response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
if (ranges.size() == 1) {
Range range = ranges.get(0);
response.addHeader(
"Content-Range", "bytes " + range.start + "-" + range.end + "/" + range.length);
long length = range.end - range.start + 1;
response.setContentLengthLong(length);
if (contentType != null) {
if (debug) log.debug("DefaultServlet.serveFile: contentType='" + contentType + "'");
response.setContentType(contentType);
}
if (serveContent) {
try {
response.setBufferSize(output);
} catch (IllegalStateException e) {
// Silent catch
}
if (ostream != null) {
copy(resource, ostream, range);
} else {
// we should not get here
throw new IllegalStateException();
}
}
} else {
response.setContentType("multipart/byteranges; boundary=" + mimeSeparation);
if (serveContent) {
try {
response.setBufferSize(output);
} catch (IllegalStateException e) {
// Silent catch
}
if (ostream != null) {
copy(resource, ostream, ranges.iterator(), contentType);
} else {
// we should not get here
throw new IllegalStateException();
}
}
}
}
}
