Context.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.catalina;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import jakarta.servlet.ServletContainerInitializer;
import jakarta.servlet.ServletContext;
import jakarta.servlet.ServletRegistration;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletSecurityElement;
import jakarta.servlet.descriptor.JspConfigDescriptor;
import org.apache.catalina.deploy.NamingResourcesImpl;
import org.apache.tomcat.ContextBind;
import org.apache.tomcat.InstanceManager;
import org.apache.tomcat.JarScanner;
import org.apache.tomcat.util.descriptor.web.ApplicationParameter;
import org.apache.tomcat.util.descriptor.web.ErrorPage;
import org.apache.tomcat.util.descriptor.web.FilterDef;
import org.apache.tomcat.util.descriptor.web.FilterMap;
import org.apache.tomcat.util.descriptor.web.LoginConfig;
import org.apache.tomcat.util.descriptor.web.SecurityConstraint;
import org.apache.tomcat.util.file.ConfigFileLoader;
import org.apache.tomcat.util.file.ConfigurationSource.Resource;
import org.apache.tomcat.util.http.CookieProcessor;
/**
* A <b>Context</b> is a Container that represents a servlet context, and
* therefore an individual web application, in the Catalina servlet engine.
* It is therefore useful in almost every deployment of Catalina (even if a
* Connector attached to a web server (such as Apache) uses the web server's
* facilities to identify the appropriate Wrapper to handle this request.
* It also provides a convenient mechanism to use Interceptors that see
* every request processed by this particular web application.
* <p>
* The parent Container attached to a Context is generally a Host, but may
* be some other implementation, or may be omitted if it is not necessary.
* <p>
* The child containers attached to a Context are generally implementations
* of Wrapper (representing individual servlet definitions).
* <p>
*
* @author Craig R. McClanahan
*/
public interface Context extends Container, ContextBind {
// ----------------------------------------------------- Manifest Constants
/**
* Container event for adding a welcome file.
*/
String ADD_WELCOME_FILE_EVENT = "addWelcomeFile";
/**
* Container event for removing a wrapper.
*/
String REMOVE_WELCOME_FILE_EVENT = "removeWelcomeFile";
/**
* Container event for clearing welcome files.
*/
String CLEAR_WELCOME_FILES_EVENT = "clearWelcomeFiles";
/**
* Container event for changing the ID of a session.
*/
String CHANGE_SESSION_ID_EVENT = "changeSessionId";
/**
* Prefix for resource lookup.
*/
String WEBAPP_PROTOCOL = "webapp:";
// ------------------------------------------------------------- Properties
/**
* Returns <code>true</code> if requests mapped to servlets without
* "multipart config" to parse multipart/form-data requests anyway.
*
* @return <code>true</code> if requests mapped to servlets without
* "multipart config" to parse multipart/form-data requests,
* <code>false</code> otherwise.
*/
boolean getAllowCasualMultipartParsing();
/**
* Set to <code>true</code> to allow requests mapped to servlets that
* do not explicitly declare @MultipartConfig or have
* <multipart-config> specified in web.xml to parse
* multipart/form-data requests.
*
* @param allowCasualMultipartParsing <code>true</code> to allow such
* casual parsing, <code>false</code> otherwise.
*/
void setAllowCasualMultipartParsing(boolean allowCasualMultipartParsing);
/**
* Obtain the registered application event listeners.
*
* @return An array containing the application event listener instances for
* this web application in the order they were specified in the web
* application deployment descriptor
*/
Object[] getApplicationEventListeners();
/**
* Store the set of initialized application event listener objects,
* in the order they were specified in the web application deployment
* descriptor, for this application.
*
* @param listeners The set of instantiated listener objects.
*/
void setApplicationEventListeners(Object listeners[]);
/**
* Obtain the registered application lifecycle listeners.
*
* @return An array containing the application lifecycle listener instances
* for this web application in the order they were specified in the
* web application deployment descriptor
*/
Object[] getApplicationLifecycleListeners();
/**
* Store the set of initialized application lifecycle listener objects,
* in the order they were specified in the web application deployment
* descriptor, for this application.
*
* @param listeners The set of instantiated listener objects.
*/
void setApplicationLifecycleListeners(Object listeners[]);
/**
* Obtain the character set name to use with the given Locale. Note that
* different Contexts may have different mappings of Locale to character
* set.
*
* @param locale The locale for which the mapped character set should be
* returned
*
* @return The name of the character set to use with the given Locale
*/
String getCharset(Locale locale);
/**
* Return the URL of the XML descriptor for this context.
*
* @return The URL of the XML descriptor for this context
*/
URL getConfigFile();
/**
* Set the URL of the XML descriptor for this context.
*
* @param configFile The URL of the XML descriptor for this context.
*/
void setConfigFile(URL configFile);
/**
* Return the "correctly configured" flag for this Context.
*
* @return <code>true</code> if the Context has been correctly configured,
* otherwise <code>false</code>
*/
boolean getConfigured();
/**
* Set the "correctly configured" flag for this Context. This can be
* set to false by startup listeners that detect a fatal configuration
* error to avoid the application from being made available.
*
* @param configured The new correctly configured flag
*/
void setConfigured(boolean configured);
/**
* Return the "use cookies for session ids" flag.
*
* @return <code>true</code> if it is permitted to use cookies to track
* session IDs for this web application, otherwise
* <code>false</code>
*/
boolean getCookies();
/**
* Set the "use cookies for session ids" flag.
*
* @param cookies The new flag
*/
void setCookies(boolean cookies);
/**
* Gets the name to use for session cookies. Overrides any setting that
* may be specified by the application.
*
* @return The value of the default session cookie name or null if not
* specified
*/
String getSessionCookieName();
/**
* Sets the name to use for session cookies. Overrides any setting that
* may be specified by the application.
*
* @param sessionCookieName The name to use
*/
void setSessionCookieName(String sessionCookieName);
/**
* Gets the value of the use HttpOnly cookies for session cookies flag.
*
* @return <code>true</code> if the HttpOnly flag should be set on session
* cookies
*/
boolean getUseHttpOnly();
/**
* Sets the use HttpOnly cookies for session cookies flag.
*
* @param useHttpOnly Set to <code>true</code> to use HttpOnly cookies
* for session cookies
*/
void setUseHttpOnly(boolean useHttpOnly);
/**
* Should the {@code Partitioned} attribute be added to session cookies created for this web application.
* <p>
* The name of the attribute used to indicate a partitioned cookie as part of
* <a href="https://developers.google.com/privacy-sandbox/3pcd#partitioned">CHIPS</a> is not defined by an RFC and
* may change in a non-backwards compatible way once equivalent functionality is included in an RFC.
*
* @return {@code true} if the {@code Partitioned} attribute should be added to session cookies created for this web
* application, otherwise {@code false}
*/
boolean getUsePartitioned();
/**
* Configure whether the {@code Partitioned} attribute should be added to session cookies created for this web
* application.
* <p>
* The name of the attribute used to indicate a partitioned cookie as part of
* <a href="https://developers.google.com/privacy-sandbox/3pcd#partitioned">CHIPS</a> is not defined by an RFC and
* may change in a non-backwards compatible way once equivalent functionality is included in an RFC.
*
* @param usePartitioned {@code true} if the {@code Partitioned} attribute should be added to session cookies
* created for this web application, otherwise {@code false}
*/
void setUsePartitioned(boolean usePartitioned);
/**
* Gets the domain to use for session cookies. Overrides any setting that
* may be specified by the application.
*
* @return The value of the default session cookie domain or null if not
* specified
*/
String getSessionCookieDomain();
/**
* Sets the domain to use for session cookies. Overrides any setting that
* may be specified by the application.
*
* @param sessionCookieDomain The domain to use
*/
void setSessionCookieDomain(String sessionCookieDomain);
/**
* Gets the path to use for session cookies. Overrides any setting that
* may be specified by the application.
*
* @return The value of the default session cookie path or null if not
* specified
*/
String getSessionCookiePath();
/**
* Sets the path to use for session cookies. Overrides any setting that
* may be specified by the application.
*
* @param sessionCookiePath The path to use
*/
void setSessionCookiePath(String sessionCookiePath);
/**
* Is a / added to the end of the session cookie path to ensure browsers,
* particularly IE, don't send a session cookie for context /foo with
* requests intended for context /foobar.
*
* @return <code>true</code> if the slash is added, otherwise
* <code>false</code>
*/
boolean getSessionCookiePathUsesTrailingSlash();
/**
* Configures if a / is added to the end of the session cookie path to
* ensure browsers, particularly IE, don't send a session cookie for context
* /foo with requests intended for context /foobar.
*
* @param sessionCookiePathUsesTrailingSlash <code>true</code> if the
* slash is should be added,
* otherwise <code>false</code>
*/
void setSessionCookiePathUsesTrailingSlash(
boolean sessionCookiePathUsesTrailingSlash);
/**
* Return the "allow crossing servlet contexts" flag.
*
* @return <code>true</code> if cross-contest requests are allowed from this
* web applications, otherwise <code>false</code>
*/
boolean getCrossContext();
/**
* Return the alternate Deployment Descriptor name.
*
* @return the name
*/
String getAltDDName();
/**
* Set an alternate Deployment Descriptor name.
*
* @param altDDName The new name
*/
void setAltDDName(String altDDName) ;
/**
* Set the "allow crossing servlet contexts" flag.
*
* @param crossContext The new cross contexts flag
*/
void setCrossContext(boolean crossContext);
/**
* Return the deny-uncovered-http-methods flag for this web application.
*
* @return The current value of the flag
*/
boolean getDenyUncoveredHttpMethods();
/**
* Set the deny-uncovered-http-methods flag for this web application.
*
* @param denyUncoveredHttpMethods The new deny-uncovered-http-methods flag
*/
void setDenyUncoveredHttpMethods(boolean denyUncoveredHttpMethods);
/**
* Return the display name of this web application.
*
* @return The display name
*/
String getDisplayName();
/**
* Set the display name of this web application.
*
* @param displayName The new display name
*/
void setDisplayName(String displayName);
/**
* Get the distributable flag for this web application.
*
* @return The value of the distributable flag for this web application.
*/
boolean getDistributable();
/**
* Set the distributable flag for this web application.
*
* @param distributable The new distributable flag
*/
void setDistributable(boolean distributable);
/**
* Obtain the document root for this Context.
*
* @return An absolute pathname or a relative (to the Host's appBase)
* pathname.
*/
String getDocBase();
/**
* Set the document root for this Context. This can be either an absolute
* pathname or a relative pathname. Relative pathnames are relative to the
* containing Host's appBase.
*
* @param docBase The new document root
*/
void setDocBase(String docBase);
/**
* Return the URL encoded context path
*
* @return The URL encoded (with UTF-8) context path
*/
String getEncodedPath();
/**
* Determine if annotations parsing is currently disabled
*
* @return {@code true} if annotation parsing is disabled for this web
* application
*/
boolean getIgnoreAnnotations();
/**
* Set the boolean on the annotations parsing for this web
* application.
*
* @param ignoreAnnotations The boolean on the annotations parsing
*/
void setIgnoreAnnotations(boolean ignoreAnnotations);
/**
* @return the login configuration descriptor for this web application.
*/
LoginConfig getLoginConfig();
/**
* Set the login configuration descriptor for this web application.
*
* @param config The new login configuration
*/
void setLoginConfig(LoginConfig config);
/**
* @return the naming resources associated with this web application.
*/
NamingResourcesImpl getNamingResources();
/**
* Set the naming resources for this web application.
*
* @param namingResources The new naming resources
*/
void setNamingResources(NamingResourcesImpl namingResources);
/**
* @return the context path for this web application.
*/
String getPath();
/**
* Set the context path for this web application.
*
* @param path The new context path
*/
void setPath(String path);
/**
* @return the public identifier of the deployment descriptor DTD that is
* currently being parsed.
*/
String getPublicId();
/**
* Set the public identifier of the deployment descriptor DTD that is
* currently being parsed.
*
* @param publicId The public identifier
*/
void setPublicId(String publicId);
/**
* @return the reloadable flag for this web application.
*/
boolean getReloadable();
/**
* Set the reloadable flag for this web application.
*
* @param reloadable The new reloadable flag
*/
void setReloadable(boolean reloadable);
/**
* @return the override flag for this web application.
*/
boolean getOverride();
/**
* Set the override flag for this web application.
*
* @param override The new override flag
*/
void setOverride(boolean override);
/**
* @return the privileged flag for this web application.
*/
boolean getPrivileged();
/**
* Set the privileged flag for this web application.
*
* @param privileged The new privileged flag
*/
void setPrivileged(boolean privileged);
/**
* @return the Servlet context for which this Context is a facade.
*/
ServletContext getServletContext();
/**
* @return the default session timeout (in minutes) for this
* web application.
*/
int getSessionTimeout();
/**
* Set the default session timeout (in minutes) for this
* web application.
*
* @param timeout The new default session timeout
*/
void setSessionTimeout(int timeout);
/**
* Returns <code>true</code> if remaining request data will be read
* (swallowed) even the request violates a data size constraint.
*
* @return <code>true</code> if data will be swallowed (default),
* <code>false</code> otherwise.
*/
boolean getSwallowAbortedUploads();
/**
* Set to <code>false</code> to disable request data swallowing
* after an upload was aborted due to size constraints.
*
* @param swallowAbortedUploads <code>false</code> to disable
* swallowing, <code>true</code> otherwise (default).
*/
void setSwallowAbortedUploads(boolean swallowAbortedUploads);
/**
* @return the value of the swallowOutput flag.
*/
boolean getSwallowOutput();
/**
* Set the value of the swallowOutput flag. If set to true, the system.out
* and system.err will be redirected to the logger during a servlet
* execution.
*
* @param swallowOutput The new value
*/
void setSwallowOutput(boolean swallowOutput);
/**
* @return the Java class name of the Wrapper implementation used
* for servlets registered in this Context.
*/
String getWrapperClass();
/**
* Set the Java class name of the Wrapper implementation used
* for servlets registered in this Context.
*
* @param wrapperClass The new wrapper class
*/
void setWrapperClass(String wrapperClass);
/**
* Will the parsing of web.xml and web-fragment.xml files for this Context
* be performed by a namespace aware parser?
*
* @return true if namespace awareness is enabled.
*/
boolean getXmlNamespaceAware();
/**
* Controls whether the parsing of web.xml and web-fragment.xml files for
* this Context will be performed by a namespace aware parser.
*
* @param xmlNamespaceAware true to enable namespace awareness
*/
void setXmlNamespaceAware(boolean xmlNamespaceAware);
/**
* Will the parsing of web.xml and web-fragment.xml files for this Context
* be performed by a validating parser?
*
* @return true if validation is enabled.
*/
boolean getXmlValidation();
/**
* Controls whether the parsing of web.xml and web-fragment.xml files
* for this Context will be performed by a validating parser.
*
* @param xmlValidation true to enable xml validation
*/
void setXmlValidation(boolean xmlValidation);
/**
* Will the parsing of web.xml, web-fragment.xml, *.tld, *.jspx, *.tagx and
* tagplugin.xml files for this Context block the use of external entities?
*
* @return true if access to external entities is blocked
*/
boolean getXmlBlockExternal();
/**
* Controls whether the parsing of web.xml, web-fragment.xml, *.tld, *.jspx,
* *.tagx and tagplugin.xml files for this Context will block the use of
* external entities.
*
* @param xmlBlockExternal true to block external entities
*/
void setXmlBlockExternal(boolean xmlBlockExternal);
/**
* Will the parsing of *.tld files for this Context be performed by a
* validating parser?
*
* @return true if validation is enabled.
*/
boolean getTldValidation();
/**
* Controls whether the parsing of *.tld files for this Context will be
* performed by a validating parser.
*
* @param tldValidation true to enable xml validation
*/
void setTldValidation(boolean tldValidation);
/**
* Get the Jar Scanner to be used to scan for JAR resources for this
* context.
* @return The Jar Scanner configured for this context.
*/
JarScanner getJarScanner();
/**
* Set the Jar Scanner to be used to scan for JAR resources for this
* context.
* @param jarScanner The Jar Scanner to be used for this context.
*/
void setJarScanner(JarScanner jarScanner);
/**
* @return the {@link Authenticator} that is used by this context. This is
* always non-{@code null} for a started Context
*/
Authenticator getAuthenticator();
/**
* Set whether or not the effective web.xml for this context should be
* logged on context start.
*
* @param logEffectiveWebXml set to <code>true</code> to log the complete
* web.xml that will be used for the webapp
*/
void setLogEffectiveWebXml(boolean logEffectiveWebXml);
/**
* Should the effective web.xml for this context be logged on context start?
*
* @return true if the reconstructed web.xml that will be used for the
* webapp should be logged
*/
boolean getLogEffectiveWebXml();
/**
* @return the instance manager associated with this context.
*/
InstanceManager getInstanceManager();
/**
* Set the instance manager associated with this context.
*
* @param instanceManager the new instance manager instance
*/
void setInstanceManager(InstanceManager instanceManager);
/**
* Sets the regular expression that specifies which container provided SCIs
* should be filtered out and not used for this context. Matching uses
* {@link java.util.regex.Matcher#find()} so the regular expression only has
* to match a sub-string of the fully qualified class name of the container
* provided SCI for it to be filtered out.
*
* @param containerSciFilter The regular expression against which the fully
* qualified class name of each container provided
* SCI should be checked
*/
void setContainerSciFilter(String containerSciFilter);
/**
* Obtains the regular expression that specifies which container provided
* SCIs should be filtered out and not used for this context. Matching uses
* {@link java.util.regex.Matcher#find()} so the regular expression only has
* to match a sub-string of the fully qualified class name of the container
* provided SCI for it to be filtered out.
*
* @return The regular expression against which the fully qualified class
* name of each container provided SCI will be checked
*/
String getContainerSciFilter();
/**
* @return the value of the parallel annotation scanning flag. If true,
* it will dispatch scanning to the utility executor.
* @deprecated This method will be removed in Tomcat 11 onwards
*/
@Deprecated
default boolean isParallelAnnotationScanning() {
return getParallelAnnotationScanning();
}
/**
* @return the value of the parallel annotation scanning flag. If true,
* it will dispatch scanning to the utility executor.
*/
boolean getParallelAnnotationScanning();
/**
* Set the parallel annotation scanning value.
*
* @param parallelAnnotationScanning new parallel annotation scanning flag
*/
void setParallelAnnotationScanning(boolean parallelAnnotationScanning);
// --------------------------------------------------------- Public Methods
/**
* Add a new Listener class name to the set of Listeners
* configured for this application.
*
* @param listener Java class name of a listener class
*/
void addApplicationListener(String listener);
/**
* Add a new application parameter for this application.
*
* @param parameter The new application parameter
*/
void addApplicationParameter(ApplicationParameter parameter);
/**
* Add a security constraint to the set for this web application.
*
* @param constraint The security constraint that should be added
*/
void addConstraint(SecurityConstraint constraint);
/**
* Add an error page for the specified error or Java exception.
*
* @param errorPage The error page definition to be added
*/
void addErrorPage(ErrorPage errorPage);
/**
* Add a filter definition to this Context.
*
* @param filterDef The filter definition to be added
*/
void addFilterDef(FilterDef filterDef);
/**
* Add a filter mapping to this Context.
*
* @param filterMap The filter mapping to be added
*/
void addFilterMap(FilterMap filterMap);
/**
* Add a filter mapping to this Context before the mappings defined in the
* deployment descriptor but after any other mappings added via this method.
*
* @param filterMap The filter mapping to be added
*
* @exception IllegalArgumentException if the specified filter name
* does not match an existing filter definition, or the filter mapping
* is malformed
*/
void addFilterMapBefore(FilterMap filterMap);
/**
* Add a Locale Encoding Mapping (see Sec 5.4 of Servlet spec 2.4)
*
* @param locale locale to map an encoding for
* @param encoding encoding to be used for a give locale
*/
void addLocaleEncodingMappingParameter(String locale, String encoding);
/**
* Add a new MIME mapping, replacing any existing mapping for
* the specified extension.
*
* @param extension Filename extension being mapped
* @param mimeType Corresponding MIME type
*/
void addMimeMapping(String extension, String mimeType);
/**
* Add a new context initialization parameter, replacing any existing
* value for the specified name.
*
* @param name Name of the new parameter
* @param value Value of the new parameter
*/
void addParameter(String name, String value);
/**
* Add a security role reference for this web application.
*
* @param role Security role used in the application
* @param link Actual security role to check for
*/
void addRoleMapping(String role, String link);
/**
* Add a new security role for this web application.
*
* @param role New security role
*/
void addSecurityRole(String role);
/**
* Add a new servlet mapping, replacing any existing mapping for
* the specified pattern.
*
* @param pattern URL pattern to be mapped
* @param name Name of the corresponding servlet to execute
*/
default void addServletMappingDecoded(String pattern, String name) {
addServletMappingDecoded(pattern, name, false);
}
/**
* Add a new servlet mapping, replacing any existing mapping for
* the specified pattern.
*
* @param pattern URL pattern to be mapped
* @param name Name of the corresponding servlet to execute
* @param jspWildcard true if name identifies the JspServlet
* and pattern contains a wildcard; false otherwise
*/
void addServletMappingDecoded(String pattern, String name,
boolean jspWildcard);
/**
* Add a resource which will be watched for reloading by the host auto
* deployer. Note: this will not be used in embedded mode.
*
* @param name Path to the resource, relative to docBase
*/
void addWatchedResource(String name);
/**
* Add a new welcome file to the set recognized by this Context.
*
* @param name New welcome file name
*/
void addWelcomeFile(String name);
/**
* Add the classname of a LifecycleListener to be added to each
* Wrapper appended to this Context.
*
* @param listener Java class name of a LifecycleListener class
*/
void addWrapperLifecycle(String listener);
/**
* Add the classname of a ContainerListener to be added to each
* Wrapper appended to this Context.
*
* @param listener Java class name of a ContainerListener class
*/
void addWrapperListener(String listener);
/**
* Factory method to create and return a new InstanceManager
* instance. This can be used for framework integration or easier
* configuration with custom Context implementations.
* @return the instance manager
*/
InstanceManager createInstanceManager();
/**
* Factory method to create and return a new Wrapper instance, of
* the Java implementation class appropriate for this Context
* implementation. The constructor of the instantiated Wrapper
* will have been called, but no properties will have been set.
*
* @return a newly created wrapper instance that is used to wrap a Servlet
*/
Wrapper createWrapper();
/**
* @return the set of application listener class names configured
* for this application.
*/
String[] findApplicationListeners();
/**
* @return the set of application parameters for this application.
*/
ApplicationParameter[] findApplicationParameters();
/**
* @return the set of security constraints for this web application.
* If there are none, a zero-length array is returned.
*/
SecurityConstraint[] findConstraints();
/**
* @return the error page entry for the specified HTTP error code,
* if any; otherwise return <code>null</code>.
*
* @param errorCode Error code to look up
*/
ErrorPage findErrorPage(int errorCode);
/**
* Find and return the ErrorPage instance for the specified exception's
* class, or an ErrorPage instance for the closest superclass for which
* there is such a definition. If no associated ErrorPage instance is
* found, return <code>null</code>.
*
* @param throwable The exception type for which to find an ErrorPage
*
* @return the error page entry for the specified Java exception type,
* if any; otherwise return {@code null}.
*/
ErrorPage findErrorPage(Throwable throwable);
/**
* @return the set of defined error pages for all specified error codes
* and exception types.
*/
ErrorPage[] findErrorPages();
/**
* @return the filter definition for the specified filter name, if any;
* otherwise return <code>null</code>.
*
* @param filterName Filter name to look up
*/
FilterDef findFilterDef(String filterName);
/**
* @return the set of defined filters for this Context.
*/
FilterDef[] findFilterDefs();
/**
* @return the set of filter mappings for this Context.
*/
FilterMap[] findFilterMaps();
/**
* @return the MIME type to which the specified extension is mapped,
* if any; otherwise return <code>null</code>.
*
* @param extension Extension to map to a MIME type
*/
String findMimeMapping(String extension);
/**
* @return the extensions for which MIME mappings are defined. If there
* are none, a zero-length array is returned.
*/
String[] findMimeMappings();
/**
* @return the value for the specified context initialization
* parameter name, if any; otherwise return <code>null</code>.
*
* @param name Name of the parameter to return
*/
String findParameter(String name);
/**
* @return the names of all defined context initialization parameters
* for this Context. If no parameters are defined, a zero-length
* array is returned.
*/
String[] findParameters();
/**
* For the given security role (as used by an application), return the
* corresponding role name (as defined by the underlying Realm) if there
* is one. Otherwise, return the specified role unchanged.
*
* @param role Security role to map
* @return The role name that was mapped to the specified role
*/
String findRoleMapping(String role);
/**
* @return <code>true</code> if the specified security role is defined
* for this application; otherwise return <code>false</code>.
*
* @param role Security role to verify
*/
boolean findSecurityRole(String role);
/**
* @return the security roles defined for this application. If none
* have been defined, a zero-length array is returned.
*/
String[] findSecurityRoles();
/**
* @return the servlet name mapped by the specified pattern (if any);
* otherwise return <code>null</code>.
*
* @param pattern Pattern for which a mapping is requested
*/
String findServletMapping(String pattern);
/**
* @return the patterns of all defined servlet mappings for this
* Context. If no mappings are defined, a zero-length array is returned.
*/
String[] findServletMappings();
/**
* @return the associated ThreadBindingListener.
*/
ThreadBindingListener getThreadBindingListener();
/**
* Get the associated ThreadBindingListener.
*
* @param threadBindingListener Set the listener that will receive
* notifications when entering and exiting the application scope
*/
void setThreadBindingListener(ThreadBindingListener threadBindingListener);
/**
* @return the set of watched resources for this Context. If none are
* defined, a zero length array will be returned.
*/
String[] findWatchedResources();
/**
* @return <code>true</code> if the specified welcome file is defined
* for this Context; otherwise return <code>false</code>.
*
* @param name Welcome file to verify
*/
boolean findWelcomeFile(String name);
/**
* @return the set of welcome files defined for this Context. If none are
* defined, a zero-length array is returned.
*/
String[] findWelcomeFiles();
/**
* @return the set of LifecycleListener classes that will be added to
* newly created Wrappers automatically.
*/
String[] findWrapperLifecycles();
/**
* @return the set of ContainerListener classes that will be added to
* newly created Wrappers automatically.
*/
String[] findWrapperListeners();
/**
* Notify all {@link jakarta.servlet.ServletRequestListener}s that a request
* has started.
*
* @param request The request object that will be passed to the listener
* @return <code>true</code> if the listeners fire successfully, else
* <code>false</code>
*/
boolean fireRequestInitEvent(ServletRequest request);
/**
* Notify all {@link jakarta.servlet.ServletRequestListener}s that a request
* has ended.
*
* @param request The request object that will be passed to the listener
* @return <code>true</code> if the listeners fire successfully, else
* <code>false</code>
*/
boolean fireRequestDestroyEvent(ServletRequest request);
/**
* Reload this web application, if reloading is supported.
*
* @exception IllegalStateException if the <code>reloadable</code>
* property is set to <code>false</code>.
*/
void reload();
/**
* Remove the specified application listener class from the set of
* listeners for this application.
*
* @param listener Java class name of the listener to be removed
*/
void removeApplicationListener(String listener);
/**
* Remove the application parameter with the specified name from
* the set for this application.
*
* @param name Name of the application parameter to remove
*/
void removeApplicationParameter(String name);
/**
* Remove the specified security constraint from this web application.
*
* @param constraint Constraint to be removed
*/
void removeConstraint(SecurityConstraint constraint);
/**
* Remove the error page for the specified error code or
* Java language exception, if it exists; otherwise, no action is taken.
*
* @param errorPage The error page definition to be removed
*/
void removeErrorPage(ErrorPage errorPage);
/**
* Remove the specified filter definition from this Context, if it exists;
* otherwise, no action is taken.
*
* @param filterDef Filter definition to be removed
*/
void removeFilterDef(FilterDef filterDef);
/**
* Remove a filter mapping from this Context.
*
* @param filterMap The filter mapping to be removed
*/
void removeFilterMap(FilterMap filterMap);
/**
* Remove the MIME mapping for the specified extension, if it exists;
* otherwise, no action is taken.
*
* @param extension Extension to remove the mapping for
*/
void removeMimeMapping(String extension);
/**
* Remove the context initialization parameter with the specified
* name, if it exists; otherwise, no action is taken.
*
* @param name Name of the parameter to remove
*/
void removeParameter(String name);
/**
* Remove any security role reference for the specified name
*
* @param role Security role (as used in the application) to remove
*/
void removeRoleMapping(String role);
/**
* Remove any security role with the specified name.
*
* @param role Security role to remove
*/
void removeSecurityRole(String role);
/**
* Remove any servlet mapping for the specified pattern, if it exists;
* otherwise, no action is taken.
*
* @param pattern URL pattern of the mapping to remove
*/
void removeServletMapping(String pattern);
/**
* Remove the specified watched resource name from the list associated
* with this Context.
*
* @param name Name of the watched resource to be removed
*/
void removeWatchedResource(String name);
/**
* Remove the specified welcome file name from the list recognized
* by this Context.
*
* @param name Name of the welcome file to be removed
*/
void removeWelcomeFile(String name);
/**
* Remove a class name from the set of LifecycleListener classes that
* will be added to newly created Wrappers.
*
* @param listener Class name of a LifecycleListener class to be removed
*/
void removeWrapperLifecycle(String listener);
/**
* Remove a class name from the set of ContainerListener classes that
* will be added to newly created Wrappers.
*
* @param listener Class name of a ContainerListener class to be removed
*/
void removeWrapperListener(String listener);
/**
* @return the real path for a given virtual path, if possible; otherwise
* return <code>null</code>.
*
* @param path The path to the desired resource
*/
String getRealPath(String path);
/**
* @return the effective major version of the Servlet spec used by this
* context.
*/
int getEffectiveMajorVersion();
/**
* Set the effective major version of the Servlet spec used by this
* context.
*
* @param major Set the version number
*/
void setEffectiveMajorVersion(int major);
/**
* @return the effective minor version of the Servlet spec used by this
* context.
*/
int getEffectiveMinorVersion();
/**
* Set the effective minor version of the Servlet spec used by this
* context.
*
* @param minor Set the version number
*/
void setEffectiveMinorVersion(int minor);
/**
* @return the JSP configuration for this context.
* Will be null if there is no JSP configuration.
*/
JspConfigDescriptor getJspConfigDescriptor();
/**
* Set the JspConfigDescriptor for this context.
* A null value indicates there is not JSP configuration.
*
* @param descriptor the new JSP configuration
*/
void setJspConfigDescriptor(JspConfigDescriptor descriptor);
/**
* Add a ServletContainerInitializer instance to this web application.
*
* @param sci The instance to add
* @param classes The classes in which the initializer expressed an
* interest
*/
void addServletContainerInitializer(
ServletContainerInitializer sci, Set<Class<?>> classes);
/**
* Is this Context paused whilst it is reloaded?
*
* @return <code>true</code> if the context has been paused
*/
boolean getPaused();
/**
* Is this context using version 2.2 of the Servlet spec?
*
* @return <code>true</code> for a legacy Servlet 2.2 webapp
*/
boolean isServlet22();
/**
* Notification that Servlet security has been dynamically set in a
* {@link jakarta.servlet.ServletRegistration.Dynamic}
* @param registration Servlet security was modified for
* @param servletSecurityElement new security constraints for this Servlet
* @return urls currently mapped to this registration that are already
* present in web.xml
*/
Set<String> addServletSecurity(ServletRegistration.Dynamic registration,
ServletSecurityElement servletSecurityElement);
/**
* Sets the (comma separated) list of Servlets that expect a resource to be
* present. Used to ensure that welcome files associated with Servlets that
* expect a resource to be present are not mapped when there is no resource.
*
* @param resourceOnlyServlets The Servlet names comma separated list
*/
void setResourceOnlyServlets(String resourceOnlyServlets);
/**
* Obtains the list of Servlets that expect a resource to be present.
*
* @return A comma separated list of Servlet names as used in web.xml
*/
String getResourceOnlyServlets();
/**
* Checks the named Servlet to see if it expects a resource to be present.
*
* @param servletName Name of the Servlet (as per web.xml) to check
* @return <code>true</code> if the Servlet expects a resource,
* otherwise <code>false</code>
*/
boolean isResourceOnlyServlet(String servletName);
/**
* @return the base name to use for WARs, directories or context.xml files
* for this context.
*/
String getBaseName();
/**
* Set the version of this web application - used to differentiate
* different versions of the same web application when using parallel
* deployment.
*
* @param webappVersion The webapp version associated with the context,
* which should be unique
*/
void setWebappVersion(String webappVersion);
/**
* @return The version of this web application, used to differentiate
* different versions of the same web application when using parallel
* deployment. If not specified, defaults to the empty string.
*/
String getWebappVersion();
/**
* Configure whether or not requests listeners will be fired on forwards for
* this Context.
*
* @param enable <code>true</code> to fire request listeners when forwarding
*/
void setFireRequestListenersOnForwards(boolean enable);
/**
* @return whether or not requests listeners will be fired on forwards for
* this Context.
*/
boolean getFireRequestListenersOnForwards();
/**
* Configures if a user presents authentication credentials, whether the
* context will process them when the request is for a non-protected
* resource.
*
* @param enable <code>true</code> to perform authentication even outside
* security constraints
*/
void setPreemptiveAuthentication(boolean enable);
/**
* @return if a user presents authentication credentials, will the
* context will process them when the request is for a non-protected
* resource.
*/
boolean getPreemptiveAuthentication();
/**
* Configures if a response body is included when a redirect response is
* sent to the client.
*
* @param enable <code>true</code> to send a response body for redirects
*/
void setSendRedirectBody(boolean enable);
/**
* @return if the context is configured to include a response body as
* part of a redirect response.
*/
boolean getSendRedirectBody();
/**
* @return the Loader with which this Context is associated.
*/
Loader getLoader();
/**
* Set the Loader with which this Context is associated.
*
* @param loader The newly associated loader
*/
void setLoader(Loader loader);
/**
* @return the Resources with which this Context is associated.
*/
WebResourceRoot getResources();
/**
* Set the Resources object with which this Context is associated.
*
* @param resources The newly associated Resources
*/
void setResources(WebResourceRoot resources);
/**
* @return the Manager with which this Context is associated. If there is
* no associated Manager, return <code>null</code>.
*/
Manager getManager();
/**
* Set the Manager with which this Context is associated.
*
* @param manager The newly associated Manager
*/
void setManager(Manager manager);
/**
* Sets the flag that indicates if /WEB-INF/classes should be treated like
* an exploded JAR and JAR resources made available as if they were in a
* JAR.
*
* @param addWebinfClassesResources The new value for the flag
*/
void setAddWebinfClassesResources(boolean addWebinfClassesResources);
/**
* @return the flag that indicates if /WEB-INF/classes should be treated like
* an exploded JAR and JAR resources made available as if they were in a
* JAR.
*/
boolean getAddWebinfClassesResources();
/**
* Add a post construct method definition for the given class, if there is
* an existing definition for the specified class - IllegalArgumentException
* will be thrown.
*
* @param clazz Fully qualified class name
* @param method
* Post construct method name
* @throws IllegalArgumentException
* if the fully qualified class name or method name are
* <code>NULL</code>; if there is already post construct method
* definition for the given class
*/
void addPostConstructMethod(String clazz, String method);
/**
* Add a pre destroy method definition for the given class, if there is an
* existing definition for the specified class - IllegalArgumentException
* will be thrown.
*
* @param clazz Fully qualified class name
* @param method
* Post construct method name
* @throws IllegalArgumentException
* if the fully qualified class name or method name are
* <code>NULL</code>; if there is already pre destroy method
* definition for the given class
*/
void addPreDestroyMethod(String clazz, String method);
/**
* Removes the post construct method definition for the given class, if it
* exists; otherwise, no action is taken.
*
* @param clazz
* Fully qualified class name
*/
void removePostConstructMethod(String clazz);
/**
* Removes the pre destroy method definition for the given class, if it
* exists; otherwise, no action is taken.
*
* @param clazz
* Fully qualified class name
*/
void removePreDestroyMethod(String clazz);
/**
* Returns the method name that is specified as post construct method for
* the given class, if it exists; otherwise <code>NULL</code> will be
* returned.
*
* @param clazz
* Fully qualified class name
*
* @return the method name that is specified as post construct method for
* the given class, if it exists; otherwise <code>NULL</code> will
* be returned.
*/
String findPostConstructMethod(String clazz);
/**
* Returns the method name that is specified as pre destroy method for the
* given class, if it exists; otherwise <code>NULL</code> will be returned.
*
* @param clazz
* Fully qualified class name
*
* @return the method name that is specified as pre destroy method for the
* given class, if it exists; otherwise <code>NULL</code> will be
* returned.
*/
String findPreDestroyMethod(String clazz);
/**
* Returns a map with keys - fully qualified class names of the classes that
* have post construct methods and the values are the corresponding method
* names. If there are no such classes an empty map will be returned.
*
* @return a map with keys - fully qualified class names of the classes that
* have post construct methods and the values are the corresponding
* method names.
*/
Map<String, String> findPostConstructMethods();
/**
* Returns a map with keys - fully qualified class names of the classes that
* have pre destroy methods and the values are the corresponding method
* names. If there are no such classes an empty map will be returned.
*
* @return a map with keys - fully qualified class names of the classes that
* have pre destroy methods and the values are the corresponding
* method names.
*/
Map<String, String> findPreDestroyMethods();
/**
* @return the token necessary for operations on the associated JNDI naming
* context.
*/
Object getNamingToken();
/**
* Sets the {@link CookieProcessor} that will be used to process cookies
* for this Context.
*
* @param cookieProcessor The new cookie processor
*
* @throws IllegalArgumentException If a {@code null} CookieProcessor is
* specified
*/
void setCookieProcessor(CookieProcessor cookieProcessor);
/**
* @return the {@link CookieProcessor} that will be used to process cookies
* for this Context.
*/
CookieProcessor getCookieProcessor();
/**
* When a client provides the ID for a new session, should that ID be
* validated? The only use case for using a client provided session ID is to
* have a common session ID across multiple web applications. Therefore,
* any client provided session ID should already exist in another web
* application. If this check is enabled, the client provided session ID
* will only be used if the session ID exists in at least one other web
* application for the current host. Note that the following additional
* tests are always applied, irrespective of this setting:
* <ul>
* <li>The session ID is provided by a cookie</li>
* <li>The session cookie has a path of {@code /}</li>
* </ul>
*
* @param validateClientProvidedNewSessionId
* {@code true} if validation should be applied
*/
void setValidateClientProvidedNewSessionId(boolean validateClientProvidedNewSessionId);
/**
* Will client provided session IDs be validated (see {@link
* #setValidateClientProvidedNewSessionId(boolean)}) before use?
*
* @return {@code true} if validation will be applied. Otherwise, {@code
* false}
*/
boolean getValidateClientProvidedNewSessionId();
/**
* If enabled, requests for a web application context root will be
* redirected (adding a trailing slash) by the Mapper. This is more
* efficient but has the side effect of confirming that the context path is
* valid.
*
* @param mapperContextRootRedirectEnabled Should the redirects be enabled?
*/
void setMapperContextRootRedirectEnabled(boolean mapperContextRootRedirectEnabled);
/**
* Determines if requests for a web application context root will be
* redirected (adding a trailing slash) by the Mapper. This is more
* efficient but has the side effect of confirming that the context path is
* valid.
*
* @return {@code true} if the Mapper level redirect is enabled for this
* Context.
*/
boolean getMapperContextRootRedirectEnabled();
/**
* If enabled, requests for a directory will be redirected (adding a
* trailing slash) by the Mapper. This is more efficient but has the
* side effect of confirming that the directory is valid.
*
* @param mapperDirectoryRedirectEnabled Should the redirects be enabled?
*/
void setMapperDirectoryRedirectEnabled(boolean mapperDirectoryRedirectEnabled);
/**
* Determines if requests for a directory will be redirected (adding a
* trailing slash) by the Mapper. This is more efficient but has the
* side effect of confirming that the directory is valid.
*
* @return {@code true} if the Mapper level redirect is enabled for this
* Context.
*/
boolean getMapperDirectoryRedirectEnabled();
/**
* Controls whether HTTP 1.1 and later location headers generated by a call
* to {@link jakarta.servlet.http.HttpServletResponse#sendRedirect(String)}
* will use relative or absolute redirects.
* <p>
* Relative redirects are more efficient but may not work with reverse
* proxies that change the context path. It should be noted that it is not
* recommended to use a reverse proxy to change the context path because of
* the multiple issues it creates.
* <p>
* Absolute redirects should work with reverse proxies that change the
* context path but may cause issues with the
* {@link org.apache.catalina.filters.RemoteIpFilter} if the filter is
* changing the scheme and/or port.
*
* @param useRelativeRedirects {@code true} to use relative redirects and
* {@code false} to use absolute redirects
*/
void setUseRelativeRedirects(boolean useRelativeRedirects);
/**
* Will HTTP 1.1 and later location headers generated by a call to
* {@link jakarta.servlet.http.HttpServletResponse#sendRedirect(String)} use
* relative or absolute redirects.
*
* @return {@code true} if relative redirects will be used {@code false} if
* absolute redirects are used.
*
* @see #setUseRelativeRedirects(boolean)
*/
boolean getUseRelativeRedirects();
/**
* Are paths used in calls to obtain a request dispatcher expected to be
* encoded? This affects both how Tomcat handles calls to obtain a request
* dispatcher as well as how Tomcat generates paths used to obtain request
* dispatchers internally.
*
* @param dispatchersUseEncodedPaths {@code true} to use encoded paths,
* otherwise {@code false}
*/
void setDispatchersUseEncodedPaths(boolean dispatchersUseEncodedPaths);
/**
* Are paths used in calls to obtain a request dispatcher expected to be
* encoded? This applies to both how Tomcat handles calls to obtain a request
* dispatcher as well as how Tomcat generates paths used to obtain request
* dispatchers internally.
*
* @return {@code true} if encoded paths will be used, otherwise
* {@code false}
*/
boolean getDispatchersUseEncodedPaths();
/**
* Set the default request body encoding for this web application.
*
* @param encoding The default encoding
*/
void setRequestCharacterEncoding(String encoding);
/**
* Get the default request body encoding for this web application.
*
* @return The default request body encoding
*/
String getRequestCharacterEncoding();
/**
* Set the default response body encoding for this web application.
*
* @param encoding The default encoding
*/
void setResponseCharacterEncoding(String encoding);
/**
* Get the default response body encoding for this web application.
*
* @return The default response body encoding
*/
String getResponseCharacterEncoding();
/**
* Configure if, when returning a context path from {@link
* jakarta.servlet.http.HttpServletRequest#getContextPath()}, the return value
* is allowed to contain multiple leading '/' characters.
*
* @param allowMultipleLeadingForwardSlashInPath The new value for the flag
*/
void setAllowMultipleLeadingForwardSlashInPath(
boolean allowMultipleLeadingForwardSlashInPath);
/**
* When returning a context path from {@link
* jakarta.servlet.http.HttpServletRequest#getContextPath()}, is it allowed to
* contain multiple leading '/' characters?
*
* @return <code>true</code> if multiple leading '/' characters are allowed,
* otherwise <code>false</code>
*/
boolean getAllowMultipleLeadingForwardSlashInPath();
void incrementInProgressAsyncCount();
void decrementInProgressAsyncCount();
/**
* Configure whether Tomcat will attempt to create an upload target used by
* this web application if it does not exist when the web application
* attempts to use it.
*
* @param createUploadTargets {@code true} if Tomcat should attempt to
* create the upload target, otherwise {@code false}
*/
void setCreateUploadTargets(boolean createUploadTargets);
/**
* Will Tomcat attempt to create an upload target used by this web
* application if it does not exist when the web application attempts to use
* it?
*
* @return {@code true} if Tomcat will attempt to create an upload target
* otherwise {@code false}
*/
boolean getCreateUploadTargets();
/**
* If this is <code>true</code>, every request that is associated with a
* session will cause the session's last accessed time to be updated
* regardless of whether or not the request explicitly accesses the session.
* If <code>org.apache.catalina.STRICT_SERVLET_COMPLIANCE</code> is set to
* <code>true</code>, the default of this setting will be <code>true</code>,
* else the default value will be <code>false</code>.
* @return the flag value
*/
boolean getAlwaysAccessSession();
/**
* Set the session access behavior.
* @param alwaysAccessSession the new flag value
*/
void setAlwaysAccessSession(boolean alwaysAccessSession);
/**
* If this is <code>true</code> then the path passed to
* <code>ServletContext.getResource()</code> or
* <code>ServletContext.getResourceAsStream()</code> must start with
* "/". If <code>false</code>, code like
* <code>getResource("myfolder/myresource.txt")</code> will work as Tomcat
* will prepend "/" to the provided path.
* If <code>org.apache.catalina.STRICT_SERVLET_COMPLIANCE</code> is set to
* <code>true</code>, the default of this setting will be <code>true</code>,
* else the default value will be <code>false</code>.
* @return the flag value
*/
boolean getContextGetResourceRequiresSlash();
/**
* Allow using <code>ServletContext.getResource()</code> or
* <code>ServletContext.getResourceAsStream()</code> without
* a leading "/".
* @param contextGetResourceRequiresSlash the new flag value
*/
void setContextGetResourceRequiresSlash(boolean contextGetResourceRequiresSlash);
/**
* If this is <code>true</code> then any wrapped request or response
* object passed to an application dispatcher will be checked to ensure that
* it has wrapped the original request or response.
* If <code>org.apache.catalina.STRICT_SERVLET_COMPLIANCE</code> is set to
* <code>true</code>, the default of this setting will be <code>true</code>,
* else the default value will be <code>false</code>.
* @return the flag value
*/
boolean getDispatcherWrapsSameObject();
/**
* Allow disabling the object wrap check in the request dispatcher.
* @param dispatcherWrapsSameObject the new flag value
*/
void setDispatcherWrapsSameObject(boolean dispatcherWrapsSameObject);
/**
* If this is <code>true</code>, then following a forward the response will
* be unwrapped to suspend the Catalina response instead of simply closing
* the top level response. The default value is <code>false</code>.
* @return the flag value
*/
boolean getSuspendWrappedResponseAfterForward();
/**
* Allows unwrapping the response object to suspend the response following
* a forward.
* @param suspendWrappedResponseAfterForward the new flag value
*/
void setSuspendWrappedResponseAfterForward(boolean suspendWrappedResponseAfterForward);
/**
* Find configuration file with the specified path, first looking into the
* webapp resources, then delegating to
* <code>ConfigFileLoader.getSource().getResource</code>. The
* <code>WEBAPP_PROTOCOL</code> constant prefix is used to denote webapp
* resources.
* @param name The resource name
* @return the resource
* @throws IOException if an error occurs or if the resource does not exist
*/
default Resource findConfigFileResource(String name) throws IOException {
if (name.startsWith(WEBAPP_PROTOCOL)) {
String path = name.substring(WEBAPP_PROTOCOL.length());
WebResource resource = getResources().getResource(path);
if (resource.canRead() && resource.isFile()) {
InputStream stream = resource.getInputStream();
try {
return new Resource(stream, resource.getURL().toURI());
} catch (URISyntaxException e) {
stream.close();
}
}
throw new FileNotFoundException(name);
}
return ConfigFileLoader.getSource().getResource(name);
}
/**
* @return <code>true</code> if the resources archive lookup will
* use a bloom filter.
*
* @deprecated This method will be removed in Tomcat 11 onwards.
* Use {@link WebResourceRoot#getArchiveIndexStrategy()}
*/
@Deprecated boolean getUseBloomFilterForArchives();
/**
* Set bloom filter flag value.
*
* @param useBloomFilterForArchives The new fast class path scan flag
*
* @deprecated This method will be removed in Tomcat 11 onwards
* Use {@link WebResourceRoot#setArchiveIndexStrategy(String)}
*/
@Deprecated void setUseBloomFilterForArchives(boolean useBloomFilterForArchives);
}