Package org.apache.catalina.manager

Class ManagerServlet

java.lang.Object
javax.servlet.GenericServlet
javax.servlet.http.HttpServlet
org.apache.catalina.manager.ManagerServlet
All Implemented Interfaces:
Serializable, Servlet, ServletConfig, ContainerServlet
Direct Known Subclasses:
HTMLManagerServlet
public class ManagerServlet extends HttpServlet implements ContainerServlet
Servlet that enables remote management of the web applications installed within the same virtual host as this web application is. Normally, this functionality will be protected by a security constraint in the web application deployment descriptor. However, this requirement can be relaxed during testing.

This servlet examines the value returned by getPathInfo() and related query parameters to determine what action is being requested. The following actions and parameters (starting after the servlet path) are supported:

  • /deploy?config={config-url} - Install and start a new web application, based on the contents of the context configuration file found at the specified URL. The docBase attribute of the context configuration file is used to locate the actual WAR or directory containing the application.
  • /deploy?config={config-url}&war={war-url}/ - Install and start a new web application, based on the contents of the context configuration file found at {config-url}, overriding the docBase attribute with the contents of the web application archive found at {war-url}.
  • /deploy?path=/xxx&war={war-url} - Install and start a new web application attached to context path /xxx, based on the contents of the web application archive found at the specified URL.
  • /list - List the context paths of all currently installed web applications for this virtual host. Each context will be listed with the following format path:status:sessions. Where path is the context path. Status is either running or stopped. Sessions is the number of active Sessions.
  • /reload?path=/xxx - Reload the Java classes and resources for the application at the specified path.
  • /resources?type=xxxx - Enumerate the available global JNDI resources, optionally limited to those of the specified type (fully qualified Java class name), if available.
  • /serverinfo - Display system OS and JVM properties.
  • /sessions - Deprecated. Use expire.
  • /expire?path=/xxx - List session idle time information about the web application attached to context path /xxx for this virtual host.
  • /expire?path=/xxx&idle=mm - Expire sessions for the context path /xxx which were idle for at least mm minutes.
  • /sslConnectorCiphers - Display diagnostic info on SSL/TLS ciphers that are currently configured for each connector.
  • /start?path=/xxx - Start the web application attached to context path /xxx for this virtual host.
  • /stop?path=/xxx - Stop the web application attached to context path /xxx for this virtual host.
  • /threaddump - Write a JVM thread dump.
  • /undeploy?path=/xxx - Shutdown and remove the web application attached to context path /xxx for this virtual host, and remove the underlying WAR file or document base directory. (NOTE - This is only allowed if the WAR file or document base is stored in the appBase directory of this host, typically as a result of being placed there via the /deploy command.
  • /vminfo - Write some VM info.
  • /save - Save the current server configuration to server.xml
  • /save?path=/xxx - Save the context configuration for the web application deployed with path /xxx to an appropriately named context.xml file in the xmlBase for the associated Host.

Use path=/ for the ROOT context.

The syntax of the URL for a web application archive must conform to one of the following patterns to be successfully deployed:

  • file:/absolute/path/to/a/directory - You can specify the absolute path of a directory that contains the unpacked version of a web application. This directory will be attached to the context path you specify without any changes.

NOTE - Attempting to reload or remove the application containing this servlet itself will not succeed. Therefore, this servlet should generally be deployed as a separate web application within the virtual host to be managed.

The following servlet initialization parameters are recognized:

  • debug - The debugging detail level that controls the amount of information that is logged by this servlet. Default is zero.
Author:
Craig R. McClanahan, Remy Maucherat
See Also:

  • Field Details

    • configBase

      protected File configBase
      Path where context descriptors should be deployed.

    • context

      protected transient Context context
      The Context container associated with our web application.

    • debug

      protected int debug
      The debugging detail level for this servlet.

    • versioned

      protected File versioned
      Path used to store revisions of webapps.

    • host

      protected transient Host host
      The associated host.

    • mBeanServer

      protected transient MBeanServer mBeanServer
      MBean server.

    • oname

      protected ObjectName oname
      The associated deployer ObjectName.

    • global

      protected transient Context global
      The global JNDI NamingContext for this server, if available.

    • sm

      protected static final StringManager sm
      The string manager for this package.

    • wrapper

      protected transient Wrapper wrapper
      The Wrapper container associated with this servlet.

  • Constructor Details

    • ManagerServlet

      public ManagerServlet()

  • Method Details

    • getWrapper

      public Wrapper getWrapper()
      Return the Wrapper with which we are associated.
      Specified by:
      getWrapper in interface ContainerServlet
      Returns:
      The Wrapper with which this Servlet is associated.

    • setWrapper

      public void setWrapper(Wrapper wrapper)
      Set the Wrapper with which we are associated.
      Specified by:
      setWrapper in interface ContainerServlet
      Parameters:
      wrapper - The new wrapper

    • destroy

      public void destroy()
      Finalize this servlet.
      Specified by:
      destroy in interface Servlet
      Overrides:
      destroy in class GenericServlet

    • doGet

      public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
      Process a GET request for the specified resource.
      Overrides:
      doGet in class HttpServlet
      Parameters:
      request - The servlet request we are processing
      response - The servlet response we are creating
      Throws:
      IOException - if an input/output error occurs
      ServletException - if a servlet-specified error occurs
      See Also:

    • doPut

      public void doPut(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
      Process a PUT request for the specified resource.
      Overrides:
      doPut in class HttpServlet
      Parameters:
      request - The servlet request we are processing
      response - The servlet response we are creating
      Throws:
      IOException - if an input/output error occurs
      ServletException - if a servlet-specified error occurs

    • init

      public void init() throws ServletException
      Initialize this servlet.
      Overrides:
      init in class GenericServlet
      Throws:
      ServletException - if an exception occurs that interrupts the servlet's normal operation

    • findleaks

      protected void findleaks(boolean statusLine, PrintWriter writer, StringManager smClient)
      Find potential memory leaks caused by web application reload.
      Parameters:
      statusLine - Print a status line
      writer - The output writer
      smClient - StringManager for the client's locale

    • sslReload

      protected void sslReload(PrintWriter writer, String tlsHostName, StringManager smClient)

    • vmInfo

      protected void vmInfo(PrintWriter writer, StringManager smClient, Enumeration<Locale> requestedLocales)
      Write some VM info.
      Parameters:
      writer - The output writer
      smClient - StringManager for the client's locale
      requestedLocales - the client's locales

    • threadDump

      protected void threadDump(PrintWriter writer, StringManager smClient, Enumeration<Locale> requestedLocales)
      Write a JVM thread dump.
      Parameters:
      writer - The output writer
      smClient - StringManager for the client's locale
      requestedLocales - the client's locales

    • sslConnectorCiphers

      protected void sslConnectorCiphers(PrintWriter writer, StringManager smClient)

    • save

      protected void save(PrintWriter writer, String path, StringManager smClient)
      Store server configuration.
      Parameters:
      writer - Destination for any user message(s) during this operation
      path - Optional context path to save
      smClient - i18n support for current client's locale

    • deploy

      protected void deploy(PrintWriter writer, ContextName cn, String tag, boolean update, HttpServletRequest request, StringManager smClient)
      Deploy a web application archive (included in the current request) at the specified context path.
      Parameters:
      writer - Writer to render results to
      cn - Name of the application to be installed
      tag - Tag to be associated with the webapp
      update - Flag that indicates that any existing app should be replaced
      request - Servlet request we are processing
      smClient - i18n messages using the locale of the client

    • deploy

      protected void deploy(PrintWriter writer, ContextName cn, String tag, StringManager smClient)
      Install an application for the specified path from the specified web application archive.
      Parameters:
      writer - Writer to render results to
      tag - Revision tag to deploy from
      cn - Name of the application to be installed
      smClient - i18n messages using the locale of the client

    • deploy

      protected void deploy(PrintWriter writer, String config, ContextName cn, String war, boolean update, StringManager smClient)
      Install an application for the specified path from the specified web application archive.
      Parameters:
      writer - Writer to render results to
      config - URL of the context configuration file to be installed
      cn - Name of the application to be installed
      war - URL of the web application archive to be installed
      update - true to override any existing webapp on the path
      smClient - i18n messages using the locale of the client

    • list

      protected void list(PrintWriter writer, StringManager smClient)
      Render a list of the currently active Contexts in our virtual host.
      Parameters:
      writer - Writer to render to
      smClient - i18n support for current client's locale

    • reload

      protected void reload(PrintWriter writer, ContextName cn, StringManager smClient)
      Reload the web application at the specified context path.
      Parameters:
      writer - Writer to render to
      cn - Name of the application to be restarted
      smClient - i18n support for current client's locale

    • resources

      protected void resources(PrintWriter writer, String type, StringManager smClient)
      Render a list of available global JNDI resources.
      Parameters:
      writer - Writer to render to
      type - Fully qualified class name of the resource type of interest, or null to list resources of all types
      smClient - i18n support for current client's locale

    • printResources

      @Deprecated protected void printResources(PrintWriter writer, String prefix, Context namingContext, String type, Class<?> clazz, StringManager smClient)
      Deprecated.
      Use printResources(PrintWriter, String, javax.naming.Context, String, StringManager) This method will be removed in Tomcat 10.x onwards
      List the resources of the given context.
      Parameters:
      writer - Writer to render to
      prefix - Path for recursion
      namingContext - The naming context for lookups
      type - Fully qualified class name of the resource type of interest, or null to list resources of all types
      clazz - Unused
      smClient - i18n support for current client's locale

    • printResources

      protected void printResources(PrintWriter writer, String prefix, Context namingContext, String type, StringManager smClient)
      List the resources of the given context.
      Parameters:
      writer - Writer to render to
      prefix - Path for recursion
      namingContext - The naming context for lookups
      type - Fully qualified class name of the resource type of interest, or null to list resources of all types
      smClient - i18n support for current client's locale

    • serverinfo

      protected void serverinfo(PrintWriter writer, StringManager smClient)
      Writes System OS and JVM properties.
      Parameters:
      writer - Writer to render to
      smClient - i18n support for current client's locale

    • sessions

      protected void sessions(PrintWriter writer, ContextName cn, int idle, StringManager smClient)
      Session information for the web application at the specified context path. Displays a profile of session thisAccessedTime listing number of sessions for each 10 minute interval up to 10 hours.
      Parameters:
      writer - Writer to render to
      cn - Name of the application to list session information for
      idle - Expire all sessions with idle time > idle for this context
      smClient - i18n support for current client's locale

    • expireSessions

      protected void expireSessions(PrintWriter writer, ContextName cn, HttpServletRequest req, StringManager smClient)
      Extract the expiration request parameter
      Parameters:
      writer - Writer to render to
      cn - Name of the application to list session information for
      req - The Servlet request
      smClient - i18n support for current client's locale

    • start

      protected void start(PrintWriter writer, ContextName cn, StringManager smClient)
      Start the web application at the specified context path.
      Parameters:
      writer - Writer to render to
      cn - Name of the application to be started
      smClient - i18n support for current client's locale

    • stop

      protected void stop(PrintWriter writer, ContextName cn, StringManager smClient)
      Stop the web application at the specified context path.
      Parameters:
      writer - Writer to render to
      cn - Name of the application to be stopped
      smClient - i18n support for current client's locale

    • undeploy

      protected void undeploy(PrintWriter writer, ContextName cn, StringManager smClient)
      Undeploy the web application at the specified context path.
      Parameters:
      writer - Writer to render to
      cn - Name of the application to be removed
      smClient - i18n support for current client's locale

    • isDeployed

      protected boolean isDeployed(String name) throws Exception
      Invoke the isDeployed method on the deployer.
      Parameters:
      name - The webapp name
      Returns:
      true if a webapp with that name is deployed
      Throws:
      Exception - Propagate JMX invocation error

    • check

      protected void check(String name) throws Exception
      Invoke the check method on the deployer.
      Parameters:
      name - The webapp name
      Throws:
      Exception - Propagate JMX invocation error

    • isServiced

      @Deprecated protected boolean isServiced(String name) throws Exception
      Deprecated.
      Unused. Will be removed in Tomcat 10.1.x onwards.
      Invoke the isServiced method on the deployer.
      Parameters:
      name - The webapp name
      Returns:
      true if a webapp with that name is being serviced
      Throws:
      Exception - Propagate JMX invocation error

    • addServiced

      @Deprecated protected void addServiced(String name) throws Exception
      Deprecated.
      Unused. Will be removed in Tomcat 10.1.x onwards. Use tryAddServiced(java.lang.String)
      Invoke the addServiced method on the deployer.
      Parameters:
      name - The webapp name
      Throws:
      Exception - Propagate JMX invocation error

    • tryAddServiced

      protected boolean tryAddServiced(String name) throws Exception
      Attempt to mark a context as being serviced
      Parameters:
      name - The context name
      Returns:
      true if the application was marked as being serviced and false if the application was already marked as being serviced
      Throws:
      Exception - Error invoking the deployer

    • removeServiced

      protected void removeServiced(String name) throws Exception
      Invoke the removeServiced method on the deployer.
      Parameters:
      name - The webapp name
      Throws:
      Exception - Propagate JMX invocation error

    • undeployDir

      protected boolean undeployDir(File dir)
      Delete the specified directory, including all of its contents and subdirectories recursively. The code assumes that the directory exists.
      Parameters:
      dir - File object representing the directory to be deleted.
      Returns:
      true if the deletion was successful

    • uploadWar

      protected void uploadWar(PrintWriter writer, HttpServletRequest request, File war, StringManager smClient) throws IOException
      Upload the WAR file included in this request, and store it at the specified file location.
      Parameters:
      writer - Writer to render to
      request - The servlet request we are processing
      war - The file into which we should store the uploaded WAR
      smClient - The StringManager used to construct i18n messages based on the Locale of the client
      Throws:
      IOException - if an I/O error occurs during processing

    • validateContextName

      protected static boolean validateContextName(ContextName cn, PrintWriter writer, StringManager smClient)

    • copy

      public static boolean copy(File src, File dest)
      Copy the specified file or directory to the destination.
      Parameters:
      src - File object representing the source
      dest - File object representing the destination
      Returns:
      true if the copy was successful

    • copyInternal

      public static boolean copyInternal(File src, File dest, byte[] buf)
      Copy the specified file or directory to the destination.
      Parameters:
      src - File object representing the source
      dest - File object representing the destination
      buf - Temp byte buffer
      Returns:
      true if the copy was successful

    • getConnectorCiphers

      protected Map<String,List<String>> getConnectorCiphers(StringManager smClient)

    • getConnectorCerts

      protected Map<String,List<String>> getConnectorCerts(StringManager smClient)

    • getConnectorTrustedCerts

      protected Map<String,List<String>> getConnectorTrustedCerts(StringManager smClient)