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package org.glassfish.jersey.server;

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.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.core.Cookie;
import javax.ws.rs.core.EntityTag;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Request;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;
import javax.ws.rs.core.Variant;
import javax.ws.rs.ext.ReaderInterceptor;
import javax.ws.rs.ext.WriterInterceptor;

import org.glassfish.jersey.internal.PropertiesDelegate;
import org.glassfish.jersey.internal.util.collection.Ref;
import org.glassfish.jersey.internal.util.collection.Refs;
import org.glassfish.jersey.message.internal.AcceptableLanguageTag;
import org.glassfish.jersey.message.internal.AcceptableMediaType;
import org.glassfish.jersey.message.internal.HttpHeaderReader;
import org.glassfish.jersey.message.internal.InboundMessageContext;
import org.glassfish.jersey.message.internal.MatchingEntityTag;
import org.glassfish.jersey.message.internal.TracingAwarePropertiesDelegate;
import org.glassfish.jersey.message.internal.VariantSelector;
import org.glassfish.jersey.model.internal.RankedProvider;
import org.glassfish.jersey.process.Inflector;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.internal.ProcessingProviders;
import org.glassfish.jersey.server.internal.process.RequestProcessingContext;
import org.glassfish.jersey.server.internal.routing.UriRoutingContext;
import org.glassfish.jersey.server.model.ResourceMethodInvoker;
import org.glassfish.jersey.server.spi.ContainerResponseWriter;
import org.glassfish.jersey.server.spi.RequestScopedInitializer;
import org.glassfish.jersey.uri.UriComponent;
import org.glassfish.jersey.uri.internal.JerseyUriBuilder;

import jersey.repackaged.com.google.common.base.Function;
import jersey.repackaged.com.google.common.base.Preconditions;
import jersey.repackaged.com.google.common.collect.Lists;

/**
 * Jersey container request context.
 * 

* An instance of the request context is passed by the container to the * {@link ApplicationHandler} for each incoming client request. * * @author Marek Potociar (marek.potociar at oracle.com) */ public class ContainerRequest extends InboundMessageContext implements ContainerRequestContext, Request, HttpHeaders, PropertiesDelegate { private static final URI DEFAULT_BASE_URI = URI.create("/"); // Request-scoped properties delegate private final PropertiesDelegate propertiesDelegate; // Routing context and UriInfo implementation private final UriRoutingContext uriRoutingContext; // Absolute application root URI (base URI) private URI baseUri; // Absolute request URI private URI requestUri; // Lazily computed encoded request path (relative to application root URI) private String encodedRelativePath = null; // Lazily computed decoded request path (relative to application root URI) private String decodedRelativePath = null; // Lazily computed "absolute path" URI private URI absolutePathUri = null; // Request method private String httpMethod; // Request security context private SecurityContext securityContext; // Request filter chain execution aborting response private Response abortResponse; // Vary header value to be set in the response private String varyValue; // Processing providers private ProcessingProviders processingProviders; // Custom Jersey container request scoped initializer private RequestScopedInitializer requestScopedInitializer; // Request-scoped response writer of the invoking container private ContainerResponseWriter responseWriter; // True if the request is used in the response processing phase (for example in ContainerResponseFilter) private boolean inResponseProcessingPhase; private static final String ERROR_REQUEST_SET_ENTITY_STREAM_IN_RESPONSE_PHASE = LocalizationMessages.ERROR_REQUEST_SET_ENTITY_STREAM_IN_RESPONSE_PHASE(); private static final String ERROR_REQUEST_SET_SECURITY_CONTEXT_IN_RESPONSE_PHASE = LocalizationMessages.ERROR_REQUEST_SET_SECURITY_CONTEXT_IN_RESPONSE_PHASE(); private static final String ERROR_REQUEST_ABORT_IN_RESPONSE_PHASE = LocalizationMessages.ERROR_REQUEST_ABORT_IN_RESPONSE_PHASE(); private static final String METHOD_PARAMETER_CANNOT_BE_NULL_OR_EMPTY = LocalizationMessages.METHOD_PARAMETER_CANNOT_BE_NULL_OR_EMPTY("variants"); private static final String METHOD_PARAMETER_CANNOT_BE_NULL_ETAG = LocalizationMessages.METHOD_PARAMETER_CANNOT_BE_NULL("eTag"); private static final String METHOD_PARAMETER_CANNOT_BE_NULL_LAST_MODIFIED = LocalizationMessages.METHOD_PARAMETER_CANNOT_BE_NULL("lastModified"); /** * Create new Jersey container request context. * * @param baseUri base application URI. * @param requestUri request URI. * @param httpMethod request HTTP method name. * @param securityContext security context of the current request. Must not be {@code null}. * The {@link SecurityContext#getUserPrincipal()} must return * {@code null} if the current request has not been authenticated * by the container. * @param propertiesDelegate custom {@link PropertiesDelegate properties delegate} * to be used by the context. */ public ContainerRequest( URI baseUri, URI requestUri, String httpMethod, SecurityContext securityContext, PropertiesDelegate propertiesDelegate) { super(true); this.baseUri = baseUri == null ? DEFAULT_BASE_URI : baseUri.normalize(); this.requestUri = requestUri; this.httpMethod = httpMethod; this.securityContext = securityContext; this.propertiesDelegate = new TracingAwarePropertiesDelegate(propertiesDelegate); this.uriRoutingContext = new UriRoutingContext(this); } /** * Get a custom container extensions initializer for the current request. *

* The initializer is guaranteed to be run from within the request scope of * the current request. * * @return custom container extensions initializer or {@code null} if not * available. */ public RequestScopedInitializer getRequestScopedInitializer() { return requestScopedInitializer; } /** * Set a custom container extensions initializer for the current request. *

* The initializer is guaranteed to be run from within the request scope of * the current request. * * @param requestScopedInitializer custom container extensions initializer. */ public void setRequestScopedInitializer(RequestScopedInitializer requestScopedInitializer) { this.requestScopedInitializer = requestScopedInitializer; } /** * Get the container response writer for the current request. * * @return container response writer. */ public ContainerResponseWriter getResponseWriter() { return responseWriter; } /** * Set the container response writer for the current request. * * @param responseWriter container response writer. Must not be {@code null}. */ public void setWriter(ContainerResponseWriter responseWriter) { this.responseWriter = responseWriter; } /** * Read entity from a context entity input stream. * * @param entity Java object type. * @param rawType raw Java entity type. * @return entity read from a context entity input stream. */ public T readEntity(Class rawType) { return readEntity(rawType, propertiesDelegate); } /** * Read entity from a context entity input stream. * * @param entity Java object type. * @param rawType raw Java entity type. * @param annotations entity annotations. * @return entity read from a context entity input stream. */ public T readEntity(Class rawType, Annotation[] annotations) { return super.readEntity(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. * @return entity read from a context entity input stream. */ public T readEntity(Class rawType, Type type) { return super.readEntity(rawType, type, 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. * @return entity read from a context entity input stream. */ public T readEntity(Class rawType, Type type, Annotation[] annotations) { return super.readEntity(rawType, type, annotations, propertiesDelegate); } @Override public Object getProperty(String name) { return propertiesDelegate.getProperty(name); } @Override public Collection getPropertyNames() { return propertiesDelegate.getPropertyNames(); } @Override public void setProperty(String name, Object object) { propertiesDelegate.setProperty(name, object); } @Override public void removeProperty(String name) { propertiesDelegate.removeProperty(name); } /** * Get the underlying properties delegate. * * @return underlying properties delegate. */ public PropertiesDelegate getPropertiesDelegate() { return propertiesDelegate; } @Override public ExtendedUriInfo getUriInfo() { return uriRoutingContext; } void setProcessingProviders(final ProcessingProviders providers) { this.processingProviders = providers; } UriRoutingContext getUriRoutingContext() { return uriRoutingContext; } /** * Get all bound request filters applicable to this request. * * @return All bound (dynamically or by name) request filters applicable to the matched inflector (or an empty * collection if no inflector matched yet). */ Iterable> getRequestFilters() { final Inflector inflector = getInflector(); return emptyIfNull(inflector instanceof ResourceMethodInvoker ? ((ResourceMethodInvoker) inflector).getRequestFilters() : null); } /** * Get all bound response filters applicable to this request. * This is populated once the right resource method is matched. * * @return All bound (dynamically or by name) response filters applicable to the matched inflector (or an empty * collection if no inflector matched yet). */ Iterable> getResponseFilters() { final Inflector inflector = getInflector(); return emptyIfNull(inflector instanceof ResourceMethodInvoker ? ((ResourceMethodInvoker) inflector).getResponseFilters() : null); } /** * Get all reader interceptors applicable to this request. * This is populated once the right resource method is matched. * * @return All reader interceptors applicable to the matched inflector (or an empty * collection if no inflector matched yet). */ @Override protected Iterable getReaderInterceptors() { final Inflector inflector = getInflector(); return inflector instanceof ResourceMethodInvoker ? ((ResourceMethodInvoker) inflector).getReaderInterceptors() : processingProviders.getSortedGlobalReaderInterceptors(); } /** * Get all writer interceptors applicable to this request. * * @return All writer interceptors applicable to the matched inflector (or an empty * collection if no inflector matched yet). */ Iterable getWriterInterceptors() { final Inflector inflector = getInflector(); return inflector instanceof ResourceMethodInvoker ? ((ResourceMethodInvoker) inflector).getWriterInterceptors() : processingProviders.getSortedGlobalWriterInterceptors(); } private Inflector getInflector() { return uriRoutingContext.getInflector(); } private static Iterable emptyIfNull(Iterable iterable) { return iterable == null ? Collections.emptyList() : iterable; } /** * Get base request URI. * * @return base request URI. */ public URI getBaseUri() { return baseUri; } /** * Get request URI. * * @return request URI. */ public URI getRequestUri() { return requestUri; } /** * Get the absolute path of the request. This includes everything preceding the path (host, port etc), * but excludes query parameters or fragment. * * @return the absolute path of the request. */ public URI getAbsolutePath() { if (absolutePathUri != null) return absolutePathUri; return absolutePathUri = new JerseyUriBuilder().uri(requestUri).replaceQuery("").fragment("").build(); } @Override public void setRequestUri(URI requestUri) throws IllegalStateException { if (!uriRoutingContext.getMatchedURIs().isEmpty()) { throw new IllegalStateException("Method could be called only in pre-matching request filter."); } this.encodedRelativePath = null; this.decodedRelativePath = null; this.absolutePathUri = null; this.uriRoutingContext.invalidateUriComponentViews(); this.requestUri = requestUri; } @Override public void setRequestUri(URI baseUri, URI requestUri) throws IllegalStateException { if (!uriRoutingContext.getMatchedURIs().isEmpty()) { throw new IllegalStateException("Method could be called only in pre-matching request filter."); } this.encodedRelativePath = null; this.decodedRelativePath = null; this.absolutePathUri = null; this.uriRoutingContext.invalidateUriComponentViews(); this.baseUri = baseUri; this.requestUri = requestUri; } /** * Get the path of the current request relative to the application root (base) * URI as a string. * * @param decode controls whether sequences of escaped octets are decoded * ({@code true}) or not ({@code false}). * @return relative request path. */ public String getPath(boolean decode) { if (decode) { if (decodedRelativePath != null) { return decodedRelativePath; } return decodedRelativePath = UriComponent.decode(encodedRelativePath(), UriComponent.Type.PATH); } else { return encodedRelativePath(); } } private String encodedRelativePath() { if (encodedRelativePath != null) { return encodedRelativePath; } String requestUriRawPath = requestUri.getRawPath(); if (baseUri == null) { return encodedRelativePath = requestUriRawPath; } final int baseUriRawPathLength = baseUri.getRawPath().length(); return encodedRelativePath = baseUriRawPathLength < requestUriRawPath.length() ? requestUriRawPath.substring(baseUriRawPathLength) : ""; } @Override public String getMethod() { return httpMethod; } @Override public void setMethod(String method) throws IllegalStateException { if (!uriRoutingContext.getMatchedURIs().isEmpty()) { throw new IllegalStateException("Method could be called only in pre-matching request filter."); } this.httpMethod = method; } /** * Like {@link #setMethod(String)} but does not throw {@link IllegalStateException} if the method is invoked in other than * pre-matching phase. * * @param method HTTP method. */ public void setMethodWithoutException(String method) { this.httpMethod = method; } @Override public SecurityContext getSecurityContext() { return securityContext; } @Override public void setSecurityContext(SecurityContext context) { Preconditions.checkState(!inResponseProcessingPhase, ERROR_REQUEST_SET_SECURITY_CONTEXT_IN_RESPONSE_PHASE); this.securityContext = context; } @Override public void setEntityStream(InputStream input) { Preconditions.checkState(!inResponseProcessingPhase, ERROR_REQUEST_SET_ENTITY_STREAM_IN_RESPONSE_PHASE); super.setEntityStream(input); } @Override public Request getRequest() { return this; } @Override public void abortWith(Response response) { Preconditions.checkState(!inResponseProcessingPhase, ERROR_REQUEST_ABORT_IN_RESPONSE_PHASE); this.abortResponse = response; } /** * Notify this request that the response created from this request is already being * processed. This means that the request processing phase has finished and this * request can be used only in the request processing phase (for example in * ContainerResponseFilter). *

* The request can be used for processing of more than one response (in async cases). * Then this method should be called when the first response is created from this * request. Multiple calls to this method has the same effect as calling the method * only once. */ public void inResponseProcessing() { this.inResponseProcessingPhase = true; } /** * Get the request filter chain aborting response if set, or {@code null} otherwise. * * @return request filter chain aborting response if set, or {@code null} otherwise. */ public Response getAbortResponse() { return abortResponse; } @Override public Map getCookies() { return super.getRequestCookies(); } @Override public List getAcceptableMediaTypes() { return Lists.transform(getQualifiedAcceptableMediaTypes(), new Function() { @Override public MediaType apply(AcceptableMediaType input) { return input; } }); } @Override public List getAcceptableLanguages() { return Lists.transform(getQualifiedAcceptableLanguages(), new Function() { @Override public Locale apply(AcceptableLanguageTag input) { return input.getAsLocale(); } }); } // JAX-RS request @Override public Variant selectVariant(List variants) throws IllegalArgumentException { if (variants == null || variants.isEmpty()) { throw new IllegalArgumentException(METHOD_PARAMETER_CANNOT_BE_NULL_OR_EMPTY); } Ref varyValueRef = Refs.emptyRef(); final Variant variant = VariantSelector.selectVariant(this, variants, varyValueRef); this.varyValue = varyValueRef.get(); return variant; } /** * Get the value of HTTP Vary response header to be set in the response, * or {@code null} if no value is to be set. * * @return value of HTTP Vary response header to be set in the response if available, * {@code null} otherwise. */ public String getVaryValue() { return varyValue; } @Override public Response.ResponseBuilder evaluatePreconditions(EntityTag eTag) { if (eTag == null) { throw new IllegalArgumentException(METHOD_PARAMETER_CANNOT_BE_NULL_ETAG); } Response.ResponseBuilder r = evaluateIfMatch(eTag); if (r != null) { return r; } return evaluateIfNoneMatch(eTag); } @Override public Response.ResponseBuilder evaluatePreconditions(Date lastModified) { if (lastModified == null) { throw new IllegalArgumentException(METHOD_PARAMETER_CANNOT_BE_NULL_LAST_MODIFIED); } final long lastModifiedTime = lastModified.getTime(); Response.ResponseBuilder r = evaluateIfUnmodifiedSince(lastModifiedTime); if (r != null) { return r; } return evaluateIfModifiedSince(lastModifiedTime); } @Override public Response.ResponseBuilder evaluatePreconditions(Date lastModified, EntityTag eTag) { if (lastModified == null) { throw new IllegalArgumentException(METHOD_PARAMETER_CANNOT_BE_NULL_LAST_MODIFIED); } if (eTag == null) { throw new IllegalArgumentException(METHOD_PARAMETER_CANNOT_BE_NULL_ETAG); } Response.ResponseBuilder r = evaluateIfMatch(eTag); if (r != null) { return r; } final long lastModifiedTime = lastModified.getTime(); r = evaluateIfUnmodifiedSince(lastModifiedTime); if (r != null) { return r; } final boolean isGetOrHead = "GET".equals(getMethod()) || "HEAD".equals(getMethod()); final Set matchingTags = getIfNoneMatch(); if (matchingTags != null) { r = evaluateIfNoneMatch(eTag, matchingTags, isGetOrHead); // If the If-None-Match header is present and there is no // match then the If-Modified-Since header must be ignored if (r == null) { return null; } // Otherwise if the If-None-Match header is present and there // is a match then the If-Modified-Since header must be checked // for consistency } final String ifModifiedSinceHeader = getHeaderString(HttpHeaders.IF_MODIFIED_SINCE); if (ifModifiedSinceHeader != null && !ifModifiedSinceHeader.isEmpty() && isGetOrHead) { r = evaluateIfModifiedSince(lastModifiedTime, ifModifiedSinceHeader); if (r != null) { r.tag(eTag); } } return r; } @Override public Response.ResponseBuilder evaluatePreconditions() { Set matchingTags = getIfMatch(); if (matchingTags == null) { return null; } // Since the resource does not exist the method must not be // perform and 412 Precondition Failed is returned return Response.status(Response.Status.PRECONDITION_FAILED); } // Private methods private Response.ResponseBuilder evaluateIfMatch(EntityTag eTag) { Set matchingTags = getIfMatch(); if (matchingTags == null) { return null; } // The strong comparison function must be used to compare the entity // tags. Thus if the entity tag of the entity is weak then matching // of entity tags in the If-Match header should fail. if (eTag.isWeak()) { return Response.status(Response.Status.PRECONDITION_FAILED); } if (matchingTags != MatchingEntityTag.ANY_MATCH && !matchingTags.contains(eTag)) { // 412 Precondition Failed return Response.status(Response.Status.PRECONDITION_FAILED); } return null; } private Response.ResponseBuilder evaluateIfNoneMatch(EntityTag eTag) { Set matchingTags = getIfNoneMatch(); if (matchingTags == null) { return null; } final String httpMethod = getMethod(); return evaluateIfNoneMatch(eTag, matchingTags, "GET".equals(httpMethod) || "HEAD".equals(httpMethod)); } private Response.ResponseBuilder evaluateIfNoneMatch(EntityTag eTag, Set matchingTags, boolean isGetOrHead) { if (isGetOrHead) { if (matchingTags == MatchingEntityTag.ANY_MATCH) { // 304 Not modified return Response.notModified(eTag); } // The weak comparison function may be used to compare entity tags if (matchingTags.contains(eTag) || matchingTags.contains(new EntityTag(eTag.getValue(), !eTag.isWeak()))) { // 304 Not modified return Response.notModified(eTag); } } else { // The strong comparison function must be used to compare the entity // tags. Thus if the entity tag of the entity is weak then matching // of entity tags in the If-None-Match header should fail if the // HTTP method is not GET or not HEAD. if (eTag.isWeak()) { return null; } if (matchingTags == MatchingEntityTag.ANY_MATCH || matchingTags.contains(eTag)) { // 412 Precondition Failed return Response.status(Response.Status.PRECONDITION_FAILED); } } return null; } private Response.ResponseBuilder evaluateIfUnmodifiedSince(long lastModified) { String ifUnmodifiedSinceHeader = getHeaderString(HttpHeaders.IF_UNMODIFIED_SINCE); if (ifUnmodifiedSinceHeader != null && !ifUnmodifiedSinceHeader.isEmpty()) { try { long ifUnmodifiedSince = HttpHeaderReader.readDate(ifUnmodifiedSinceHeader).getTime(); if (roundDown(lastModified) > ifUnmodifiedSince) { // 412 Precondition Failed return Response.status(Response.Status.PRECONDITION_FAILED); } } catch (ParseException ex) { // Ignore the header if parsing error } } return null; } private Response.ResponseBuilder evaluateIfModifiedSince(long lastModified) { String ifModifiedSinceHeader = getHeaderString(HttpHeaders.IF_MODIFIED_SINCE); if (ifModifiedSinceHeader == null || ifModifiedSinceHeader.isEmpty()) { return null; } final String httpMethod = getMethod(); if ("GET".equals(httpMethod) || "HEAD".equals(httpMethod)) { return evaluateIfModifiedSince(lastModified, ifModifiedSinceHeader); } else { return null; } } private Response.ResponseBuilder evaluateIfModifiedSince(long lastModified, String ifModifiedSinceHeader) { try { long ifModifiedSince = HttpHeaderReader.readDate(ifModifiedSinceHeader).getTime(); if (roundDown(lastModified) <= ifModifiedSince) { // 304 Not modified return Response.notModified(); } } catch (ParseException ex) { // Ignore the header if parsing error } return null; } /** * Round down the time to the nearest second. * * @param time the time to round down. * @return the rounded down time. */ private static long roundDown(long time) { return time - time % 1000; } /** * Get the values of a HTTP request header. The returned List is read-only. * This is a shortcut for {@code getRequestHeaders().get(name)}. * * @param name the header name, case insensitive. * @return a read-only list of header values. * * @throws IllegalStateException if called outside the scope of a request. */ @Override public List getRequestHeader(String name) { return getHeaders().get(name); } /** * Get the values of HTTP request headers. The returned Map is case-insensitive * wrt. keys and is read-only. The method never returns {@code null}. * * @return a read-only map of header names and values. * * @throws IllegalStateException if called outside the scope of a request. */ @Override public MultivaluedMap getRequestHeaders() { return getHeaders(); } /** * Check if the container request has been properly initialized for processing. * * @throws IllegalStateException in case the internal state is not ready for processing. */ void checkState() throws IllegalStateException { if (securityContext == null) { throw new IllegalStateException("SecurityContext set in the ContainerRequestContext must not be null."); } else if (responseWriter == null) { throw new IllegalStateException("ResponseWriter set in the ContainerRequestContext must not be null."); } } }





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