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/**
* Jooby https://jooby.io
* Apache License Version 2.0 https://jooby.io/LICENSE.txt
* Copyright 2014 Edgar Espina
*/
package io.jooby;
import io.jooby.exception.RegistryException;
import io.jooby.exception.TypeMismatchException;
import io.jooby.internal.HashValue;
import io.jooby.internal.MissingValue;
import io.jooby.internal.SingleValue;
import io.jooby.internal.UrlParser;
import io.jooby.internal.ValueConverters;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.lang.reflect.Type;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Path;
import java.time.Instant;
import java.util.Date;
import java.util.List;
import java.util.Map;
/***
* Like {@link Context} but with couple of default methods.
*
* @since 2.0.2
* @author edgar
*/
public interface DefaultContext extends Context {
@Nonnull @Override default <T> T require(@Nonnull Class<T> type, @Nonnull String name)
throws RegistryException {
return getRouter().require(type, name);
}
@Nonnull @Override default <T> T require(@Nonnull Class<T> type) throws RegistryException {
return getRouter().require(type);
}
@Nonnull @Override default <T> T require(@Nonnull ServiceKey<T> key) throws RegistryException {
return getRouter().require(key);
}
@Nullable @Override default <T> T getUser() {
return (T) getAttributes().get("user");
}
@Nonnull @Override default Context setUser(@Nullable Object user) {
getAttributes().put("user", user);
return this;
}
@Override default boolean matches(String pattern) {
return getRouter().match(pattern, pathString());
}
/**
* Get an attribute by his key. This is just an utility method around {@link #getAttributes()}.
* This method look first in current context and fallback to application attributes.
*
* @param key Attribute key.
* @param <T> Attribute type.
* @return Attribute value.
*/
@Override @Nonnull default <T> T attribute(@Nonnull String key) {
T attribute = (T) getAttributes().get(key);
if (attribute == null) {
Map<String, Object> globals = getRouter().getAttributes();
attribute = (T) globals.get(key);
}
return attribute;
}
@Override @Nonnull default Context attribute(@Nonnull String key, Object value) {
getAttributes().put(key, value);
return this;
}
@Override default @Nonnull FlashMap flash() {
return (FlashMap) getAttributes()
.computeIfAbsent(FlashMap.NAME, key -> FlashMap
.create(this, new Cookie(getRouter().getFlashCookie()).setHttpOnly(true)));
}
/**
* Get a flash attribute.
*
* @param name Attribute's name.
* @return Flash attribute.
*/
@Override default @Nonnull Value flash(@Nonnull String name) {
return Value.create(this, name, flash().get(name));
}
@Override default @Nonnull Value session(@Nonnull String name) {
Session session = sessionOrNull();
if (session != null) {
return session.get(name);
}
return Value.missing(name);
}
@Override default @Nonnull Session session() {
Session session = sessionOrNull();
if (session == null) {
SessionStore store = getRouter().getSessionStore();
session = store.newSession(this);
getAttributes().put(Session.NAME, session);
}
return session;
}
@Override default @Nullable Session sessionOrNull() {
Session session = (Session) getAttributes().get(Session.NAME);
if (session == null) {
Router router = getRouter();
SessionStore store = router.getSessionStore();
session = store.findSession(this);
}
return session;
}
@Override default @Nonnull Value cookie(@Nonnull String name) {
String value = cookieMap().get(name);
return value == null ? Value.missing(name) : Value.value(this, name, value);
}
@Override @Nonnull default Value path(@Nonnull String name) {
String value = pathMap().get(name);
return value == null
? new MissingValue(name)
: new SingleValue(this, name, UrlParser.decodePathSegment(value));
}
@Override @Nonnull default <T> T path(@Nonnull Class<T> type) {
return path().to(type);
}
@Override @Nonnull default ValueNode path() {
HashValue path = new HashValue(this, null);
for (Map.Entry<String, String> entry : pathMap().entrySet()) {
path.put(entry.getKey(), entry.getValue());
}
return path;
}
@Override @Nonnull default ValueNode query(@Nonnull String name) {
return query().get(name);
}
@Override @Nonnull default String queryString() {
return query().queryString();
}
@Override @Nonnull default <T> T query(@Nonnull Class<T> type) {
return query().to(type);
}
@Override @Nonnull default Map<String, String> queryMap() {
return query().toMap();
}
@Override @Nonnull default Map<String, List<String>> queryMultimap() {
return query().toMultimap();
}
@Override @Nonnull default Value header(@Nonnull String name) {
return header().get(name);
}
@Override @Nonnull default Map<String, String> headerMap() {
return header().toMap();
}
@Override @Nonnull default Map<String, List<String>> headerMultimap() {
return header().toMultimap();
}
@Override default boolean accept(@Nonnull MediaType contentType) {
Value accept = header(ACCEPT);
return accept.isMissing() ? true : contentType.matches(accept.value());
}
@Override default MediaType accept(@Nonnull List<MediaType> produceTypes) {
List<MediaType> acceptTypes = MediaType.parse(header(ACCEPT).valueOrNull());
MediaType result = null;
for (MediaType acceptType : acceptTypes) {
for (MediaType produceType : produceTypes) {
if (produceType.matches(acceptType)) {
if (result == null) {
result = produceType;
} else {
MediaType max = MediaType.MOST_SPECIFIC.apply(result, produceType);
if (max != result) {
result = max;
}
}
}
}
}
return result;
}
@Override default @Nonnull String getRequestURL() {
return getRequestURL(false);
}
@Override default @Nonnull String getRequestURL(@Nonnull String path) {
return getRequestURL(path, false);
}
@Override default @Nonnull String getRequestURL(boolean useProxy) {
return getRequestURL("", useProxy);
}
@Override default @Nonnull String getRequestURL(@Nonnull String path, boolean useProxy) {
String scheme, hostAndPort;
if (useProxy && !header("X-Forwarded-Host").isMissing()) {
scheme = header("X-Forwarded-Proto").value(getScheme());
hostAndPort = getHostAndPort(true);
} else {
scheme = getScheme();
hostAndPort = getHostAndPort(false);
}
String host, port;
int i = hostAndPort.lastIndexOf(':');
if (i > 0) {
host = hostAndPort.substring(0, i).trim();
port = hostAndPort.substring(i + 1).trim();
} else {
host = hostAndPort;
port = "";
}
StringBuilder url = new StringBuilder();
url.append(scheme).append("://").append(host);
if (port.length() > 0 && !port.equals("80") && !port.equals("443")) {
url.append(":").append(port);
}
if (path == null || path.length() == 0) {
url.append(pathString());
} else {
String contextPath = getContextPath();
if (contextPath.equals("/")) {
url.append(path);
} else {
if (!path.startsWith(contextPath)) {
url.append(contextPath);
}
url.append(path);
}
}
url.append(queryString());
return url.toString();
}
@Override @Nullable default MediaType getRequestType() {
Value contentType = header("Content-Type");
return contentType.isMissing() ? null : MediaType.valueOf(contentType.value());
}
@Override @Nonnull default MediaType getRequestType(MediaType defaults) {
Value contentType = header("Content-Type");
return contentType.isMissing() ? defaults : MediaType.valueOf(contentType.value());
}
@Override default long getRequestLength() {
Value contentLength = header("Content-Length");
return contentLength.isMissing() ? -1 : contentLength.longValue();
}
@Override default @Nullable String getHostAndPort(boolean useProxy) {
return header(useProxy ? "X-Forwarded-Host" : "Host").toOptional()
.map(value -> {
int i = value.indexOf(',');
String host = i > 0 ? value.substring(0, i).trim() : value;
if (host.startsWith("[") && host.endsWith("]")) {
return host.substring(1, host.length() - 1).trim();
}
return host;
})
.orElseGet(() -> getServerHost() + ":" + getServerPort());
}
@Override default @Nonnull String getServerHost() {
String host = getRouter().getServerOptions().getHost();
return host.equals("0.0.0.0") ? "localhost" : host;
}
@Override default int getServerPort() {
ServerOptions options = getRouter().getServerOptions();
return isSecure() ? options.getSecurePort() : options.getPort();
}
@Override default int getPort() {
String hostAndPort = getHostAndPort(false);
if (hostAndPort != null) {
int index = hostAndPort.indexOf(':');
if (index > 0) {
return Integer.parseInt(hostAndPort.substring(index + 1));
}
return isSecure() ? SECURE_PORT : PORT;
}
return getServerPort();
}
@Override default @Nonnull String getHost() {
String hostAndPort = getHostAndPort(false);
if (hostAndPort != null) {
int index = hostAndPort.indexOf(':');
return index > 0 ? hostAndPort.substring(0, index).trim() : hostAndPort;
}
return getServerHost();
}
@Override default boolean isSecure() {
return getScheme().equals("https");
}
@Override @Nonnull default Map<String, List<String>> formMultimap() {
return form().toMultimap();
}
@Override @Nonnull default Map<String, String> formMap() {
return form().toMap();
}
@Override @Nonnull default ValueNode form(@Nonnull String name) {
return form().get(name);
}
@Override @Nonnull default <T> T form(@Nonnull Class<T> type) {
return form().to(type);
}
@Override @Nonnull default ValueNode multipart(@Nonnull String name) {
return multipart().get(name);
}
@Override @Nonnull default <T> T multipart(@Nonnull Class<T> type) {
return multipart().to(type);
}
@Override @Nonnull default Map<String, List<String>> multipartMultimap() {
return multipart().toMultimap();
}
@Override @Nonnull default Map<String, String> multipartMap() {
return multipart().toMap();
}
@Override @Nonnull default List<FileUpload> files() {
return multipart().files();
}
@Override @Nonnull default List<FileUpload> files(@Nonnull String name) {
return multipart().files(name);
}
@Override @Nonnull default FileUpload file(@Nonnull String name) {
return multipart().file(name);
}
@Override default @Nonnull <T> T body(@Nonnull Class<T> type) {
return body().to(type);
}
@Override default @Nonnull <T> T body(@Nonnull Type type) {
return body().to(type);
}
@Override default @Nullable <T> T convert(ValueNode value, Class<T> type) {
T result = ValueConverters.convert(value, type, getRouter());
if (result == null) {
throw new TypeMismatchException(value.name(), type);
}
return result;
}
@Override default @Nonnull <T> T decode(@Nonnull Type type, @Nonnull MediaType contentType) {
try {
if (MediaType.text.equals(contentType)) {
T result = ValueConverters.convert(body(), type, getRouter());
if (result != null) {
return result;
}
}
return decoder(contentType).decode(this, type);
} catch (Exception x) {
throw SneakyThrows.propagate(x);
}
}
@Override default @Nonnull MessageDecoder decoder(@Nonnull MediaType contentType) {
return getRoute().decoder(contentType);
}
@Override @Nonnull default Context setResponseHeader(@Nonnull String name, @Nonnull Date value) {
return setResponseHeader(name, RFC1123.format(Instant.ofEpochMilli(value.getTime())));
}
@Override @Nonnull
default Context setResponseHeader(@Nonnull String name, @Nonnull Instant value) {
return setResponseHeader(name, RFC1123.format(value));
}
@Override @Nonnull
default Context setResponseHeader(@Nonnull String name, @Nonnull Object value) {
if (value instanceof Date) {
return setResponseHeader(name, (Date) value);
}
if (value instanceof Instant) {
return setResponseHeader(name, (Instant) value);
}
return setResponseHeader(name, value.toString());
}
@Override @Nonnull default Context setResponseType(@Nonnull MediaType contentType) {
return setResponseType(contentType, contentType.getCharset());
}
@Override @Nonnull default Context setResponseCode(@Nonnull StatusCode statusCode) {
return setResponseCode(statusCode.value());
}
@Override default @Nonnull Context render(@Nonnull Object value) {
try {
Route route = getRoute();
MessageEncoder encoder = route.getEncoder();
byte[] bytes = encoder.encode(this, value);
if (bytes == null) {
if (!isResponseStarted()) {
throw new IllegalStateException("The response was not encoded");
}
} else {
send(bytes);
}
return this;
} catch (Exception x) {
throw SneakyThrows.propagate(x);
}
}
@Override default @Nonnull OutputStream responseStream(@Nonnull MediaType contentType) {
setResponseType(contentType);
return responseStream();
}
@Override default @Nonnull Context responseStream(@Nonnull MediaType contentType,
@Nonnull SneakyThrows.Consumer<OutputStream> consumer) throws Exception {
setResponseType(contentType);
return responseStream(consumer);
}
@Override default @Nonnull Context responseStream(
@Nonnull SneakyThrows.Consumer<OutputStream> consumer)
throws Exception {
try (OutputStream out = responseStream()) {
consumer.accept(out);
}
return this;
}
@Override default @Nonnull PrintWriter responseWriter() {
return responseWriter(MediaType.text);
}
@Override default @Nonnull PrintWriter responseWriter(@Nonnull MediaType contentType) {
return responseWriter(contentType, contentType.getCharset());
}
@Override default @Nonnull Context responseWriter(
@Nonnull SneakyThrows.Consumer<PrintWriter> consumer)
throws Exception {
return responseWriter(MediaType.text, consumer);
}
@Override default @Nonnull Context responseWriter(@Nonnull MediaType contentType,
@Nonnull SneakyThrows.Consumer<PrintWriter> consumer) throws Exception {
return responseWriter(contentType, contentType.getCharset(), consumer);
}
@Override default @Nonnull Context responseWriter(@Nonnull MediaType contentType,
@Nullable Charset charset,
@Nonnull SneakyThrows.Consumer<PrintWriter> consumer) throws Exception {
try (PrintWriter writer = responseWriter(contentType, charset)) {
consumer.accept(writer);
}
return this;
}
@Override default @Nonnull Context sendRedirect(@Nonnull String location) {
return sendRedirect(StatusCode.FOUND, location);
}
@Override default @Nonnull Context sendRedirect(@Nonnull StatusCode redirect,
@Nonnull String location) {
setResponseHeader("location", location);
return send(redirect);
}
@Override default @Nonnull Context send(@Nonnull byte[]... data) {
ByteBuffer[] buffer = new ByteBuffer[data.length];
for (int i = 0; i < data.length; i++) {
buffer[i] = ByteBuffer.wrap(data[i]);
}
return send(buffer);
}
@Override default @Nonnull Context send(@Nonnull String data) {
return send(data, StandardCharsets.UTF_8);
}
@Override default @Nonnull Context send(@Nonnull AttachedFile file) {
setResponseHeader("Content-Disposition", file.getContentDisposition());
InputStream content = file.stream();
long length = file.getFileSize();
if (length > 0) {
setResponseLength(length);
}
setDefaultResponseType(file.getContentType());
if (content instanceof FileInputStream) {
send(((FileInputStream) content).getChannel());
} else {
send(content);
}
return this;
}
@Override default @Nonnull Context send(@Nonnull Path file) {
try {
setDefaultResponseType(MediaType.byFile(file));
return send(FileChannel.open(file));
} catch (IOException x) {
throw SneakyThrows.propagate(x);
}
}
@Override @Nonnull default Context sendError(@Nonnull Throwable cause) {
sendError(cause, getRouter().errorCode(cause));
return this;
}
/**
* Send an error response.
*
* @param cause Error. If this is a fatal error it is going to be rethrow it.
* @param statusCode Status code.
* @return This context.
*/
@Override @Nonnull default Context sendError(@Nonnull Throwable cause,
@Nonnull StatusCode statusCode) {
Router router = getRouter();
if (isResponseStarted()) {
router.getLog().error(ErrorHandler.errorMessage(this, statusCode), cause);
} else {
try {
if (getResetHeadersOnError()) {
removeResponseHeaders();
}
router.getErrorHandler().apply(this, cause, statusCode);
} catch (Exception x) {
if (Server.connectionLost(x)) {
router.getLog()
.debug("error handler resulted in exception {} {}", getMethod(), getRequestPath(), x);
} else {
router.getLog()
.error("error handler resulted in exception {} {}", getMethod(), getRequestPath(), x);
}
}
}
/** rethrow fatal exceptions: */
if (SneakyThrows.isFatal(cause)) {
throw SneakyThrows.propagate(cause);
}
return this;
}
}