private String getContentCharset(byte[] content, Metadata metadata) {
String charset = null;
// check if the server specified a charset
String specifiedContentType = metadata.getFirstValue(HttpHeaders.CONTENT_TYPE);
try {
if (specifiedContentType != null) {
ContentType parsedContentType = ContentType.parse(specifiedContentType);
charset = parsedContentType.getCharset().name();
}
} catch (Exception e) {
charset = null;
}
// filter HTML tags
CharsetDetector detector = new CharsetDetector();
detector.enableInputFilter(true);
// give it a hint
detector.setDeclaredEncoding(charset);
detector.setText(content);
try {
CharsetMatch charsetMatch = detector.detect();
if (charsetMatch != null) {
charset = charsetMatch.getName();
}
} catch (Exception e) {
// ignore and leave the charset as-is
}
return charset;
}
private ContentType receiveWithCharsetParameter(ContentType contentType, Charset charset) {
if (contentType.getCharset() != null) {
return contentType;
}
final String mimeType = contentType.getMimeType();
if (mimeType.equals(ContentType.TEXT_PLAIN.getMimeType())
|| AbstractFutureCallback.ODATA_MIME_TYPE.matcher(mimeType).matches()) {
return contentType.withCharset(charset);
}
return contentType;
}
private CoverallsResponse parseResponse(final HttpResponse response)
throws ProcessingException, IOException {
HttpEntity entity = response.getEntity();
ContentType contentType = ContentType.getOrDefault(entity);
InputStreamReader reader = null;
try {
reader = new InputStreamReader(entity.getContent(), contentType.getCharset());
CoverallsResponse cr = objectMapper.readValue(reader, CoverallsResponse.class);
if (cr.isError()) {
throw new ProcessingException(getResponseErrorMessage(response, cr.getMessage()));
}
return cr;
} catch (JsonProcessingException ex) {
throw new ProcessingException(getResponseErrorMessage(response, ex.getMessage()), ex);
} catch (IOException ex) {
throw new IOException(getResponseErrorMessage(response, ex.getMessage()), ex);
} finally {
IOUtil.close(reader);
}
}
public static Reader createReaderFromResponse(HttpResponse theResponse)
throws IllegalStateException, IOException {
HttpEntity entity = theResponse.getEntity();
if (entity == null) {
return new StringReader("");
}
Charset charset = null;
if (entity.getContentType() != null
&& entity.getContentType().getElements() != null
&& entity.getContentType().getElements().length > 0) {
ContentType ct = ContentType.get(entity);
charset = ct.getCharset();
}
if (charset == null) {
if (Constants.STATUS_HTTP_204_NO_CONTENT != theResponse.getStatusLine().getStatusCode()) {
ourLog.warn("Response did not specify a charset.");
}
charset = Charset.forName("UTF-8");
}
Reader reader = new InputStreamReader(theResponse.getEntity().getContent(), charset);
return reader;
}
@Test
public void testHttpContent() throws Exception {
final String[] patterns = {
"0123456789ABCDEF",
"yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that-"
+ "yadayada-blahblah-this-and-that-yadayada-blahblah-this-and-that"
};
// Initialize the server-side request handler
this.server.registerHandler(
"*",
new HttpRequestHandler() {
public void handle(
final HttpRequest request, final HttpResponse response, final HttpContext context)
throws HttpException, IOException {
if (request instanceof HttpEntityEnclosingRequest) {
int n = 1;
String s = request.getRequestLine().getUri();
if (s.startsWith("/?n=")) {
s = s.substring(4);
try {
n = Integer.parseInt(s);
if (n <= 0) {
throw new HttpException(
"Invalid request: " + "number of repetitions cannot be negative or zero");
}
} catch (final NumberFormatException ex) {
throw new HttpException("Invalid request: " + "number of repetitions is invalid");
}
}
final HttpEntity incoming = ((HttpEntityEnclosingRequest) request).getEntity();
final String line = EntityUtils.toString(incoming);
final ContentType contentType = ContentType.getOrDefault(incoming);
Charset charset = contentType.getCharset();
if (charset == null) {
charset = HTTP.DEF_CONTENT_CHARSET;
}
final RepeatingEntity outgoing = new RepeatingEntity(line, charset, n);
outgoing.setChunked(n % 2 == 0);
response.setEntity(outgoing);
} else {
throw new HttpException("Invalid request: POST request expected");
}
}
});
this.server.start();
final DefaultBHttpClientConnection conn = client.createConnection();
final HttpHost host = new HttpHost("localhost", this.server.getPort());
try {
for (final String pattern : patterns) {
for (int n = 1000; n < 1020; n++) {
if (!conn.isOpen()) {
client.connect(host, conn);
}
final BasicHttpEntityEnclosingRequest post =
new BasicHttpEntityEnclosingRequest("POST", "/?n=" + n);
final StringEntity outgoing = new StringEntity(pattern);
outgoing.setChunked(n % 2 == 0);
post.setEntity(outgoing);
final HttpResponse response = this.client.execute(post, host, conn);
final HttpEntity incoming = response.getEntity();
Assert.assertNotNull(incoming);
final InputStream instream = incoming.getContent();
final ContentType contentType = ContentType.getOrDefault(incoming);
Charset charset = contentType.getCharset();
if (charset == null) {
charset = HTTP.DEF_CONTENT_CHARSET;
}
Assert.assertNotNull(instream);
final BufferedReader reader =
new BufferedReader(new InputStreamReader(instream, charset));
String line;
int count = 0;
while ((line = reader.readLine()) != null) {
Assert.assertEquals(pattern, line);
count++;
}
Assert.assertEquals(n, count);
if (!this.client.keepAlive(response)) {
conn.close();
}
}
}
} finally {
conn.close();
this.server.shutdown();
}
}
private Document getHttpMessageContent(HttpMessage message) {
HttpEntity entity = null;
if (message instanceof HttpEntityEnclosingRequest) {
entity = ((HttpEntityEnclosingRequest) message).getEntity();
} else if (message instanceof HttpResponse) {
entity = ((HttpResponse) message).getEntity();
}
Document doc = null;
// redirecting reply to and fault to nodes if present
if (entity != null) {
try (InputStream is = entity.getContent()) {
ContentType contentType = null;
for (Header header : message.getHeaders("Content-Type")) {
try {
contentType = ContentType.parse(header.getValue());
} catch (ParseException | UnsupportedCharsetException ex) {
}
}
if (contentType != null) {
Charset charset = contentType.getCharset();
if (charset == null) {
charset = Charset.forName("UTF-8");
}
String mimeType = contentType.getMimeType();
if (mimeType.contains("xml")) {
String content = IOUtils.toString(is, charset.name());
Document xmlDocument = XMLUtils.parseXML(content);
if (xmlDocument != null) {
XPath xpath = XPathFactory.newInstance().newXPath();
xpath.setNamespaceContext(new FimsNamespaceContext());
NodeList nodes =
(NodeList)
xpath.evaluate(
"/S:Envelope/S:Body/S:Fault/detail/*",
xmlDocument.getDocumentElement(),
XPathConstants.NODESET);
if (nodes.getLength() == 0) {
nodes =
(NodeList)
xpath.evaluate(
"/S:Envelope/S:Body/*",
xmlDocument.getDocumentElement(),
XPathConstants.NODESET);
}
doc = XMLUtils.newEmptyDocument();
if (nodes.getLength() > 0) {
Node node = nodes.item(0);
Node newNode = doc.importNode(node, true);
doc.appendChild(newNode);
}
}
}
}
} catch (IOException | UnsupportedOperationException | XPathExpressionException ex) {
Logger.getLogger(ValidationModuleImpl.class.getName()).log(Level.SEVERE, null, ex);
}
}
return doc;
}
private Olingo2BatchResponse parseResponse(
Edm edm,
Map<String, String> contentIdLocationMap,
Olingo2BatchRequest request,
BatchSingleResponse response)
throws EntityProviderException, ODataApplicationException {
// validate HTTP status
final int statusCode = Integer.parseInt(response.getStatusCode());
final String statusInfo = response.getStatusInfo();
final BasicHttpResponse httpResponse =
new BasicHttpResponse(new BasicStatusLine(HttpVersion.HTTP_1_1, statusCode, statusInfo));
final Map<String, String> headers = response.getHeaders();
for (Map.Entry<String, String> entry : headers.entrySet()) {
httpResponse.setHeader(entry.getKey(), entry.getValue());
}
ByteArrayInputStream content = null;
try {
if (response.getBody() != null) {
final ContentType partContentType =
receiveWithCharsetParameter(
ContentType.parse(headers.get(HttpHeaders.CONTENT_TYPE)), Consts.UTF_8);
final String charset = partContentType.getCharset().toString();
final String body = response.getBody();
content = body != null ? new ByteArrayInputStream(body.getBytes(charset)) : null;
httpResponse.setEntity(new StringEntity(body, charset));
}
AbstractFutureCallback.checkStatus(httpResponse);
} catch (ODataApplicationException e) {
return new Olingo2BatchResponse(
statusCode, statusInfo, response.getContentId(), response.getHeaders(), e);
} catch (UnsupportedEncodingException e) {
return new Olingo2BatchResponse(
statusCode, statusInfo, response.getContentId(), response.getHeaders(), e);
}
// resolve resource path and query params and parse batch part uri
final String resourcePath = request.getResourcePath();
final String resolvedResourcePath;
if (resourcePath.startsWith("$")
&& !(METADATA.equals(resourcePath) || BATCH.equals(resourcePath))) {
resolvedResourcePath = findLocation(resourcePath, contentIdLocationMap);
} else {
final String resourceLocation = response.getHeader(HttpHeaders.LOCATION);
resolvedResourcePath =
resourceLocation != null ? resourceLocation.substring(serviceUri.length()) : resourcePath;
}
final Map<String, String> resolvedQueryParams =
request instanceof Olingo2BatchQueryRequest
? ((Olingo2BatchQueryRequest) request).getQueryParams()
: null;
final UriInfoWithType uriInfo = parseUri(edm, resolvedResourcePath, resolvedQueryParams);
// resolve response content
final Object resolvedContent = content != null ? readContent(uriInfo, content) : null;
return new Olingo2BatchResponse(
statusCode, statusInfo, response.getContentId(), response.getHeaders(), resolvedContent);
}
@Override
public ProblemAndTestCaseList importExercise(Course course, String exerciseHash)
throws CloudCoderAuthenticationException {
if (course == null || exerciseHash == null) {
throw new IllegalArgumentException();
}
// Make sure a user is authenticated
User user =
ServletUtil.checkClientIsAuthenticated(
getThreadLocalRequest(), GetCoursesAndProblemsServiceImpl.class);
// Find user's registration in the course: if user is not instructor,
// import is not allowed
CourseRegistrationList reg = Database.getInstance().findCourseRegistrations(user, course);
if (!reg.isInstructor()) {
throw new CloudCoderAuthenticationException(
"Only an instructor can import a problem in a course");
}
// Attempt to load the problem from the exercise repository.
ConfigurationSetting repoUrlSetting =
Database.getInstance().getConfigurationSetting(ConfigurationSettingName.PUB_REPOSITORY_URL);
if (repoUrlSetting == null) {
logger.error("Repository URL configuration setting is not set");
return null;
}
// GET the exercise from the repository
HttpGet get = new HttpGet(repoUrlSetting.getValue() + "/exercisedata/" + exerciseHash);
ProblemAndTestCaseList exercise = null;
HttpClient client = new DefaultHttpClient();
try {
HttpResponse response = client.execute(get);
HttpEntity entity = response.getEntity();
ContentType contentType = ContentType.getOrDefault(entity);
Reader reader = new InputStreamReader(entity.getContent(), contentType.getCharset());
exercise = new ProblemAndTestCaseList();
exercise.setTestCaseList(new TestCase[0]);
JSONConversion.readProblemAndTestCaseData(
exercise,
ReflectionFactory.forClass(Problem.class),
ReflectionFactory.forClass(TestCase.class),
reader);
// Set the course id
exercise.getProblem().setCourseId(course.getId());
} catch (IOException e) {
logger.error("Error importing exercise from repository", e);
return null;
} finally {
client.getConnectionManager().shutdown();
}
// Set "when assigned" and "when due" to reasonable default values
long now = System.currentTimeMillis();
exercise.getProblem().setWhenAssigned(now);
exercise.getProblem().setWhenDue(now + 48L * 60L * 60L * 1000L);
// Set problem authorship as IMPORTED
exercise.getProblem().setProblemAuthorship(ProblemAuthorship.IMPORTED);
// For IMPORTED problems, parent_hash is actually the hash of the problem
// itself. If the problem is modified (and the authorship changed
// to IMPORTED_AND_MODIFIED), then the (unchanged) parent_hash value
// really does reflect the "parent" problem.
exercise.getProblem().setParentHash(exerciseHash);
// Store the exercise in the database
exercise = Database.getInstance().storeProblemAndTestCaseList(exercise, course, user);
return exercise;
}
/** @since 4.3 */
public StringBody(final String text, final ContentType contentType) {
super(contentType);
Args.notNull(text, "Text");
final Charset charset = contentType.getCharset();
this.content = text.getBytes(charset != null ? charset : Consts.ASCII);
}
