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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012-2017 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://oss.oracle.com/licenses/CDDL+GPL-1.1
* or LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at LICENSE.txt.
*
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* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
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package org.glassfish.jersey.message.internal;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.net.URI;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.function.Function;
import javax.ws.rs.ProcessingException;
import javax.ws.rs.core.Cookie;
import javax.ws.rs.core.EntityTag;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Link;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.NewCookie;
import javax.ws.rs.ext.ReaderInterceptor;
import javax.ws.rs.ext.RuntimeDelegate;
import javax.xml.transform.Source;
import org.glassfish.jersey.internal.LocalizationMessages;
import org.glassfish.jersey.internal.PropertiesDelegate;
import org.glassfish.jersey.message.MessageBodyWorkers;
/**
* Base inbound message context implementation.
*
* @author Marek Potociar (marek.potociar at oracle.com)
*/
public abstract class InboundMessageContext {
private static final InputStream EMPTY = new InputStream() {
@Override
public int read() throws IOException {
return -1;
}
@Override
public void mark(int readlimit) {
// no-op
}
@Override
public void reset() throws IOException {
// no-op
}
@Override
public boolean markSupported() {
return true;
}
};
private static final Annotation[] EMPTY_ANNOTATIONS = new Annotation[0];
private static final List WILDCARD_ACCEPTABLE_TYPE_SINGLETON_LIST =
Collections.singletonList(MediaTypes.WILDCARD_ACCEPTABLE_TYPE);
private final MultivaluedMap headers;
private final EntityContent entityContent;
private final boolean translateNce;
private MessageBodyWorkers workers;
/**
* Input stream and its state. State is represented by the {@link Type Type enum} and
* is used to control the execution of interceptors.
*/
private static class EntityContent extends EntityInputStream {
private boolean buffered;
EntityContent() {
super(EMPTY);
}
void setContent(InputStream content, boolean buffered) {
this.buffered = buffered;
setWrappedStream(content);
}
boolean hasContent() {
return getWrappedStream() != EMPTY;
}
boolean isBuffered() {
return buffered;
}
@Override
public void close() {
close(false);
}
void close(boolean force) {
if (buffered && !force) {
return;
}
try {
super.close();
} finally {
buffered = false;
setWrappedStream(null);
}
}
}
/**
* Create new inbound message context.
*/
public InboundMessageContext() {
this(false);
}
/**
* Create new inbound message context.
*
* @param translateNce if {@code true}, the {@link javax.ws.rs.core.NoContentException} thrown by a
* selected message body reader will be translated into a {@link javax.ws.rs.BadRequestException}
* as required by JAX-RS specification on the server side.
*/
public InboundMessageContext(boolean translateNce) {
this.headers = HeaderUtils.createInbound();
this.entityContent = new EntityContent();
this.translateNce = translateNce;
}
// Message headers
/**
* Add a new header value.
*
* @param name header name.
* @param value header value.
* @return updated context.
*/
public InboundMessageContext header(String name, Object value) {
getHeaders().add(name, HeaderUtils.asString(value, RuntimeDelegate.getInstance()));
return this;
}
/**
* Add new header values.
*
* @param name header name.
* @param values header values.
* @return updated context.
*/
public InboundMessageContext headers(String name, Object... values) {
this.getHeaders().addAll(name, HeaderUtils.asStringList(Arrays.asList(values), RuntimeDelegate.getInstance()));
return this;
}
/**
* Add new header values.
*
* @param name header name.
* @param values header values.
* @return updated context.
*/
public InboundMessageContext headers(String name, Iterable values) {
this.getHeaders().addAll(name, iterableToList(values));
return this;
}
/**
* Add new headers.
*
* @param newHeaders new headers.
* @return updated context.
*/
public InboundMessageContext headers(MultivaluedMap newHeaders) {
for (Map.Entry> header : newHeaders.entrySet()) {
headers.addAll(header.getKey(), header.getValue());
}
return this;
}
/**
* Add new headers.
*
* @param newHeaders new headers.
* @return updated context.
*/
public InboundMessageContext headers(Map> newHeaders) {
for (Map.Entry> header : newHeaders.entrySet()) {
headers.addAll(header.getKey(), header.getValue());
}
return this;
}
/**
* Remove a header.
*
* @param name header name.
* @return updated context.
*/
public InboundMessageContext remove(String name) {
this.getHeaders().remove(name);
return this;
}
private static List iterableToList(final Iterable values) {
final LinkedList linkedList = new LinkedList();
final RuntimeDelegate rd = RuntimeDelegate.getInstance();
for (Object element : values) {
linkedList.add(HeaderUtils.asString(element, rd));
}
return linkedList;
}
/**
* Get a message header as a single string value.
*
* Each single header value is converted to String using a
* {@link javax.ws.rs.ext.RuntimeDelegate.HeaderDelegate} if one is available
* via {@link javax.ws.rs.ext.RuntimeDelegate#createHeaderDelegate(java.lang.Class)}
* for the header value class or using its {@code toString} method if a header
* delegate is not available.
*
* @param name the message header.
* @return the message header value. If the message header is not present then
* {@code null} is returned. If the message header is present but has no
* value then the empty string is returned. If the message header is present
* more than once then the values of joined together and separated by a ','
* character.
*/
public String getHeaderString(String name) {
List values = this.headers.get(name);
if (values == null) {
return null;
}
if (values.isEmpty()) {
return "";
}
final Iterator valuesIterator = values.iterator();
StringBuilder buffer = new StringBuilder(valuesIterator.next());
while (valuesIterator.hasNext()) {
buffer.append(',').append(valuesIterator.next());
}
return buffer.toString();
}
/**
* Get a single typed header value.
*
* @param name header name.
* @param converter from string conversion function. Is expected to throw {@link ProcessingException}
* if conversion fails.
* @param convertNull if {@code true} this method calls the provided converter even for {@code null}. Otherwise this
* method returns the {@code null} without calling the converter.
* @return value of the header, or (possibly converted) {@code null} if not present.
*/
private T singleHeader(String name, Function converter, boolean convertNull) {
final List values = this.headers.get(name);
if (values == null || values.isEmpty()) {
return convertNull ? converter.apply(null) : null;
}
if (values.size() > 1) {
throw new HeaderValueException(LocalizationMessages.TOO_MANY_HEADER_VALUES(name, values.toString()),
HeaderValueException.Context.INBOUND);
}
Object value = values.get(0);
if (value == null) {
return convertNull ? converter.apply(null) : null;
}
try {
return converter.apply(HeaderUtils.asString(value, null));
} catch (ProcessingException ex) {
throw exception(name, value, ex);
}
}
private static HeaderValueException exception(final String headerName, Object headerValue, Exception e) {
return new HeaderValueException(LocalizationMessages.UNABLE_TO_PARSE_HEADER_VALUE(headerName, headerValue), e,
HeaderValueException.Context.INBOUND);
}
/**
* Get the mutable message headers multivalued map.
*
* @return mutable multivalued map of message headers.
*/
public MultivaluedMap getHeaders() {
return this.headers;
}
/**
* Get message date.
*
* @return the message date, otherwise {@code null} if not present.
*/
public Date getDate() {
return singleHeader(HttpHeaders.DATE, new Function() {
@Override
public Date apply(String input) {
try {
return HttpHeaderReader.readDate(input);
} catch (ParseException ex) {
throw new ProcessingException(ex);
}
}
}, false);
}
/**
* Get If-Match header.
*
* @return the If-Match header value, otherwise {@code null} if not present.
*/
public Set getIfMatch() {
final String ifMatch = getHeaderString(HttpHeaders.IF_MATCH);
if (ifMatch == null || ifMatch.isEmpty()) {
return null;
}
try {
return HttpHeaderReader.readMatchingEntityTag(ifMatch);
} catch (java.text.ParseException e) {
throw exception(HttpHeaders.IF_MATCH, ifMatch, e);
}
}
/**
* Get If-None-Match header.
*
* @return the If-None-Match header value, otherwise {@code null} if not present.
*/
public Set getIfNoneMatch() {
final String ifNoneMatch = getHeaderString(HttpHeaders.IF_NONE_MATCH);
if (ifNoneMatch == null || ifNoneMatch.isEmpty()) {
return null;
}
try {
return HttpHeaderReader.readMatchingEntityTag(ifNoneMatch);
} catch (java.text.ParseException e) {
throw exception(HttpHeaders.IF_NONE_MATCH, ifNoneMatch, e);
}
}
/**
* Get the language of the entity.
*
* @return the language of the entity or {@code null} if not specified.
*/
public Locale getLanguage() {
return singleHeader(HttpHeaders.CONTENT_LANGUAGE, new Function() {
@Override
public Locale apply(String input) {
try {
return new LanguageTag(input).getAsLocale();
} catch (ParseException e) {
throw new ProcessingException(e);
}
}
}, false);
}
/**
* Get Content-Length value.
*
* @return Content-Length as integer if present and valid number. In other cases returns -1.
*/
public int getLength() {
return singleHeader(HttpHeaders.CONTENT_LENGTH, new Function() {
@Override
public Integer apply(String input) {
try {
return (input != null && !input.isEmpty()) ? Integer.parseInt(input) : -1;
} catch (NumberFormatException ex) {
throw new ProcessingException(ex);
}
}
}, true);
}
/**
* Get the media type of the entity.
*
* @return the media type or {@code null} if not specified (e.g. there's no
* message entity).
*/
public MediaType getMediaType() {
return singleHeader(HttpHeaders.CONTENT_TYPE, new Function() {
@Override
public MediaType apply(String input) {
try {
return MediaType.valueOf(input);
} catch (IllegalArgumentException iae) {
throw new ProcessingException(iae);
}
}
}, false);
}
/**
* Get a list of media types that are acceptable for a request.
*
* @return a read-only list of requested response media types sorted according
* to their q-value, with highest preference first.
*/
public List getQualifiedAcceptableMediaTypes() {
final String value = getHeaderString(HttpHeaders.ACCEPT);
if (value == null || value.isEmpty()) {
return WILDCARD_ACCEPTABLE_TYPE_SINGLETON_LIST;
}
try {
return Collections.unmodifiableList(HttpHeaderReader.readAcceptMediaType(value));
} catch (ParseException e) {
throw exception(HttpHeaders.ACCEPT, value, e);
}
}
/**
* Get a list of languages that are acceptable for the message.
*
* @return a read-only list of acceptable languages sorted according
* to their q-value, with highest preference first.
*/
public List getQualifiedAcceptableLanguages() {
final String value = getHeaderString(HttpHeaders.ACCEPT_LANGUAGE);
if (value == null || value.isEmpty()) {
return Collections.singletonList(new AcceptableLanguageTag("*", null));
}
try {
return Collections.unmodifiableList(HttpHeaderReader.readAcceptLanguage(value));
} catch (ParseException e) {
throw exception(HttpHeaders.ACCEPT_LANGUAGE, value, e);
}
}
/**
* Get the list of language tag from the "Accept-Charset" of an HTTP request.
*
* @return The list of AcceptableToken. This list
* is ordered with the highest quality acceptable charset occurring first.
*/
public List getQualifiedAcceptCharset() {
final String acceptCharset = getHeaderString(HttpHeaders.ACCEPT_CHARSET);
try {
if (acceptCharset == null || acceptCharset.isEmpty()) {
return Collections.singletonList(new AcceptableToken("*"));
}
return HttpHeaderReader.readAcceptToken(acceptCharset);
} catch (java.text.ParseException e) {
throw exception(HttpHeaders.ACCEPT_CHARSET, acceptCharset, e);
}
}
/**
* Get the list of language tag from the "Accept-Charset" of an HTTP request.
*
* @return The list of AcceptableToken. This list
* is ordered with the highest quality acceptable charset occurring first.
*/
public List getQualifiedAcceptEncoding() {
final String acceptEncoding = getHeaderString(HttpHeaders.ACCEPT_ENCODING);
try {
if (acceptEncoding == null || acceptEncoding.isEmpty()) {
return Collections.singletonList(new AcceptableToken("*"));
}
return HttpHeaderReader.readAcceptToken(acceptEncoding);
} catch (java.text.ParseException e) {
throw exception("Accept-Encoding", acceptEncoding, e);
}
}
/**
* Get any cookies that accompanied the request.
*
* @return a read-only map of cookie name (String) to {@link javax.ws.rs.core.Cookie}.
*/
public Map getRequestCookies() {
List cookies = this.headers.get(HttpHeaders.COOKIE);
if (cookies == null || cookies.isEmpty()) {
return Collections.emptyMap();
}
Map result = new HashMap();
for (String cookie : cookies) {
if (cookie != null) {
result.putAll(HttpHeaderReader.readCookies(cookie));
}
}
return result;
}
/**
* Get the allowed HTTP methods from the Allow HTTP header.
*
* @return the allowed HTTP methods, all methods will returned as upper case
* strings.
*/
public Set getAllowedMethods() {
final String allowed = getHeaderString(HttpHeaders.ALLOW);
if (allowed == null || allowed.isEmpty()) {
return Collections.emptySet();
}
try {
return new HashSet(HttpHeaderReader.readStringList(allowed.toUpperCase()));
} catch (java.text.ParseException e) {
throw exception(HttpHeaders.ALLOW, allowed, e);
}
}
/**
* Get any new cookies set on the response message.
*
* @return a read-only map of cookie name (String) to a {@link javax.ws.rs.core.NewCookie new cookie}.
*/
public Map getResponseCookies() {
List cookies = this.headers.get(HttpHeaders.SET_COOKIE);
if (cookies == null || cookies.isEmpty()) {
return Collections.emptyMap();
}
Map result = new HashMap();
for (String cookie : cookies) {
if (cookie != null) {
NewCookie newCookie = HttpHeaderReader.readNewCookie(cookie);
result.put(newCookie.getName(), newCookie);
}
}
return result;
}
/**
* Get the entity tag.
*
* @return the entity tag, otherwise {@code null} if not present.
*/
public EntityTag getEntityTag() {
return singleHeader(HttpHeaders.ETAG, new Function() {
@Override
public EntityTag apply(String value) {
return EntityTag.valueOf(value);
}
}, false);
}
/**
* Get the last modified date.
*
* @return the last modified date, otherwise {@code null} if not present.
*/
public Date getLastModified() {
return singleHeader(HttpHeaders.LAST_MODIFIED, new Function() {
@Override
public Date apply(String input) {
try {
return HttpHeaderReader.readDate(input);
} catch (ParseException e) {
throw new ProcessingException(e);
}
}
}, false);
}
/**
* Get the location.
*
* @return the location URI, otherwise {@code null} if not present.
*/
public URI getLocation() {
return singleHeader(HttpHeaders.LOCATION, new Function() {
@Override
public URI apply(String value) {
try {
return URI.create(value);
} catch (IllegalArgumentException ex) {
throw new ProcessingException(ex);
}
}
}, false);
}
/**
* Get the links attached to the message as header.
*
* @return links, may return empty {@link java.util.Set} if no links are present. Never
* returns {@code null}.
*/
public Set getLinks() {
List links = this.headers.get(HttpHeaders.LINK);
if (links == null || links.isEmpty()) {
return Collections.emptySet();
}
try {
Set result = new HashSet(links.size());
StringBuilder linkString;
for (String link : links) {
linkString = new StringBuilder();
StringTokenizer st = new StringTokenizer(link, "<>,", true);
boolean linkOpen = false;
while (st.hasMoreTokens()) {
String n = st.nextToken();
if (n.equals("<")) {
linkOpen = true;
} else if (n.equals(">")) {
linkOpen = false;
} else if (!linkOpen && n.equals(",")) {
result.add(Link.valueOf(linkString.toString().trim()));
linkString = new StringBuilder();
continue; // don't add the ","
}
linkString.append(n);
}
if (linkString.length() > 0) {
result.add(Link.valueOf(linkString.toString().trim()));
}
}
return result;
} catch (IllegalArgumentException e) {
throw exception(HttpHeaders.LINK, links, e);
}
}
/**
* Check if link for relation exists.
*
* @param relation link relation.
* @return {@code true} if the for the relation link exists, {@code false}
* otherwise.
*/
public boolean hasLink(String relation) {
for (Link link : getLinks()) {
List relations = LinkProvider.getLinkRelations(link.getRel());
if (relations != null && relations.contains(relation)) {
return true;
}
}
return false;
}
/**
* Get the link for the relation.
*
* @param relation link relation.
* @return the link for the relation, otherwise {@code null} if not present.
*/
public Link getLink(String relation) {
for (Link link : getLinks()) {
List relations = LinkProvider.getLinkRelations(link.getRel());
if (relations != null && relations.contains(relation)) {
return link;
}
}
return null;
}
/**
* Convenience method that returns a {@link javax.ws.rs.core.Link.Builder Link.Builder}
* for the relation.
*
* @param relation link relation.
* @return the link builder for the relation, otherwise {@code null} if not
* present.
*/
public Link.Builder getLinkBuilder(String relation) {
Link link = getLink(relation);
if (link == null) {
return null;
}
return Link.fromLink(link);
}
// Message entity
/**
* Get context message body workers.
*
* @return context message body workers.
*/
public MessageBodyWorkers getWorkers() {
return workers;
}
/**
* Set context message body workers.
*
* @param workers context message body workers.
*/
public void setWorkers(MessageBodyWorkers workers) {
this.workers = workers;
}
/**
* Check if there is a non-empty entity input stream is available in the
* message.
*
* The method returns {@code true} if the entity is present, returns
* {@code false} otherwise.
*
* @return {@code true} if there is an entity present in the message,
* {@code false} otherwise.
*/
public boolean hasEntity() {
entityContent.ensureNotClosed();
try {
return !entityContent.isEmpty();
} catch (IllegalStateException ex) {
// input stream has been closed.
return false;
}
}
/**
* Get the entity input stream.
*
* @return entity input stream.
*/
public InputStream getEntityStream() {
entityContent.ensureNotClosed();
return entityContent.getWrappedStream();
}
/**
* Set a new entity input stream.
*
* @param input new entity input stream.
*/
public void setEntityStream(InputStream input) {
this.entityContent.setContent(input, false);
}
/**
* Read entity from a context entity input stream.
*
* @param entity Java object type.
* @param rawType raw Java entity type.
* @param propertiesDelegate request-scoped properties delegate.
* @return entity read from a context entity input stream.
*/
public T readEntity(Class rawType, PropertiesDelegate propertiesDelegate) {
return readEntity(rawType, rawType, EMPTY_ANNOTATIONS, propertiesDelegate);
}
/**
* Read entity from a context entity input stream.
*
* @param entity Java object type.
* @param rawType raw Java entity type.
* @param annotations entity annotations.
* @param propertiesDelegate request-scoped properties delegate.
* @return entity read from a context entity input stream.
*/
public T readEntity(Class rawType, Annotation[] annotations, PropertiesDelegate propertiesDelegate) {
return readEntity(rawType, rawType, annotations, propertiesDelegate);
}
/**
* Read entity from a context entity input stream.
*
* @param entity Java object type.
* @param rawType raw Java entity type.
* @param type generic Java entity type.
* @param propertiesDelegate request-scoped properties delegate.
* @return entity read from a context entity input stream.
*/
public T readEntity(Class rawType, Type type, PropertiesDelegate propertiesDelegate) {
return readEntity(rawType, type, EMPTY_ANNOTATIONS, propertiesDelegate);
}
/**
* Read entity from a context entity input stream.
*
* @param entity Java object type.
* @param rawType raw Java entity type.
* @param type generic Java entity type.
* @param annotations entity annotations.
* @param propertiesDelegate request-scoped properties delegate.
* @return entity read from a context entity input stream.
*/
@SuppressWarnings("unchecked")
public T readEntity(Class rawType, Type type, Annotation[] annotations, PropertiesDelegate propertiesDelegate) {
final boolean buffered = entityContent.isBuffered();
if (buffered) {
entityContent.reset();
}
entityContent.ensureNotClosed();
// TODO: revise if we need to re-introduce the check for performance reasons or once non-blocking I/O is supported.
// The code has been commended out because in case of streaming input (e.g. SSE) the call might block until a first
// byte is available, which would make e.g. the SSE EventSource construction or EventSource.open() method to block
// until a first event is received, which is undesirable.
//
// if (entityContent.isEmpty()) {
// return null;
// }
if (workers == null) {
return null;
}
MediaType mediaType = getMediaType();
mediaType = mediaType == null ? MediaType.APPLICATION_OCTET_STREAM_TYPE : mediaType;
boolean shouldClose = !buffered;
try {
T t = (T) workers.readFrom(
rawType,
type,
annotations,
mediaType,
headers,
propertiesDelegate,
entityContent.getWrappedStream(),
entityContent.hasContent() ? getReaderInterceptors() : Collections.emptyList(),
translateNce);
shouldClose = shouldClose && !(t instanceof Closeable) && !(t instanceof Source);
return t;
} catch (IOException ex) {
throw new ProcessingException(LocalizationMessages.ERROR_READING_ENTITY_FROM_INPUT_STREAM(), ex);
} finally {
if (shouldClose) {
// Workaround for JRFCAF-1344: the underlying stream close() implementation may be thread-unsafe
// and as such the close() may result in an IOException at the socket input stream level,
// if the close() gets called at once from multiple threads somehow.
// We want to ignore these exceptions in the readEntity/bufferEntity operations though.
ReaderWriter.safelyClose(entityContent);
}
}
}
/**
* Buffer the entity stream (if not empty).
*
* @return {@code true} if the entity input stream was successfully buffered.
* @throws javax.ws.rs.ProcessingException in case of an IO error.
*/
public boolean bufferEntity() throws ProcessingException {
entityContent.ensureNotClosed();
try {
if (entityContent.isBuffered() || !entityContent.hasContent()) {
return true;
}
final InputStream entityStream = entityContent.getWrappedStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
ReaderWriter.writeTo(entityStream, baos);
} finally {
// Workaround for JRFCAF-1344: the underlying stream close() implementation may be thread-unsafe
// and as such the close() may result in an IOException at the socket input stream level,
// if the close() gets called at once from multiple threads somehow.
// We want to ignore these exceptions in the readEntity/bufferEntity operations though.
ReaderWriter.safelyClose(entityStream);
}
entityContent.setContent(new ByteArrayInputStream(baos.toByteArray()), true);
return true;
} catch (IOException ex) {
throw new ProcessingException(LocalizationMessages.MESSAGE_CONTENT_BUFFERING_FAILED(), ex);
}
}
/**
* Closes the underlying content stream.
*/
public void close() {
entityContent.close(true);
}
/**
* Get reader interceptors bound to this context.
*
* Interceptors will be used when one of the {@code readEntity} methods is invoked.
*
*
* @return reader interceptors bound to this context.
*/
protected abstract Iterable getReaderInterceptors();
}