Package org.opencms.main

Class OpenCmsCore

java.lang.Object
org.opencms.main.OpenCmsCore
public final class OpenCmsCore extends Object
The internal implementation of the core OpenCms "operating system" functions.

All access to this class must be done through the public static methods of the OpenCms object. Under no circumstances should you ever try to access this class directly.

This class is so OpenCms internal you should not even be reading this documentation ;-)

Any request to the OpenCmsServlet will be forwarded to this core class. The core will then try to map the request to a VFS (Virtual File System) URI, that is a CmsResource in the OpenCms database. If a resource is found, it will be read and forwarded to to the corresponding I_CmsResourceLoader, which will then generate the output for the requested resource and return it to the requesting client.

There will be only one singleton instance of this object created for this core class. This means that in the default configuration, where OpenCms is accessed through a servlet context, there will be only one instance of the core in that servlet context.

Since:
6.0.0

  • Field Details

  • Method Details

    • getPathInfo

      public static String getPathInfo(javax.servlet.http.HttpServletRequest req)
      Returns the path for the request.

      First checks the HttpServletRequest.getPathInfo(), then the configured request error page attribute (if set), and then if still undefined the / is returned as path info.

      This is only needed when the HttpServletRequest.getPathInfo() is not really working as expected like in BEA WLS 9.x, where we have to use the 'weblogic.servlet.errorPage' request attribute.

      Parameters:
      req - the http request context
      Returns:
      the path for the request

    • getInstance

      protected static OpenCmsCore getInstance()
      Returns the initialized OpenCms singleton instance.

      Returns:
      the initialized OpenCms singleton instance

    • setErrorCondition

      protected static void setErrorCondition(CmsMessageContainer errorCondition)
      Sets the error condition.

      Parameters:
      errorCondition - the error condition to set

    • getVfsMemoryObjectCache

      public CmsVfsMemoryObjectCache getVfsMemoryObjectCache()
      Gets the default CmsVfsMemoryCache instance.
      Returns:
      the default cache instance

    • addRequestHandler

      protected void addRequestHandler(I_CmsRequestHandler handler)
      Adds the specified request handler to the Map of OpenCms request handlers.

      Parameters:
      handler - the handler to add

    • getADEManager

      protected CmsADEManager getADEManager()
      Gets the ADE manager, and makes sure it is initialized.

      Returns:
      the initialized ADE manager

    • getAliasManager

      protected CmsAliasManager getAliasManager()
      Returns the alias manager.

      Returns:
      the alias manager

    • getApiAuthorization

      protected I_CmsApiAuthorizationHandler getApiAuthorization(String name)
      Gets the API authorization handler with the given name, or null if it doesn't exist.
      Parameters:
      name - the name of the API authorization handler
      Returns:
      the API authorization handler, or null if it wasn't found

    • getAuthorizationHandler

      protected I_CmsAuthorizationHandler getAuthorizationHandler()
      Returns the configured authorization handler.

      Returns:
      the configured authorization handler

    • getConfigurationManager

      protected CmsConfigurationManager getConfigurationManager()
      Returns the initialized OpenCms configuration manager.

      Returns:
      the initialized OpenCms configuration manager

    • getCredentialsResolver

      protected I_CmsCredentialsResolver getCredentialsResolver()
      Gets the configured credentials resolver instance.

      Returns:
      the credentials resolver

    • getDbPoolNames

      protected List<String> getDbPoolNames()
      Gets the database pool names.

      Returns:
      the configured database pool names

    • getDefaultFiles

      protected List<String> getDefaultFiles()
      Returns the configured list of default directory file names.

      Returns:
      the configured list of default directory file names

    • getDefaultUsers

      protected CmsDefaultUsers getDefaultUsers()
      Returns the default user and group name configuration.

      Returns:
      the default user and group name configuration

    • getEventManager

      protected CmsEventManager getEventManager()
      Returns the OpenCms event manager.

      Returns:
      the OpenCms event manager

    • getExecutor

      protected ScheduledThreadPoolExecutor getExecutor()
      Gets the thread pool executor.

      Returns:
      the thread pool executor

    • getExportPoints

      protected Set<CmsExportPoint> getExportPoints()
      Returns the configured export points, the returned set being an unmodifiable set.

      Returns:
      an unmodifiable set of the configured export points

    • getFlexCache

      protected CmsFlexCache getFlexCache()
      Gets the flex cache.
      Returns:
      CmsFlexCache

    • getFlexCacheKeyDump

      protected String getFlexCacheKeyDump()
      Gets a string containing all keys and variations currently in the flex cache, for debug purposes.

      Returns:
      a debug information string with the flex cache data

    • getImportExportManager

      protected CmsImportExportManager getImportExportManager()
      Returns the initialized import/export manager, which contains information about the Cms import/export.

      Returns:
      the initialized import/export manager

    • getLetsEncryptConfig

      protected CmsLetsEncryptConfiguration getLetsEncryptConfig()
      Gets the LetsEncrypt configuration.

      Returns:
      the LetsEncrypt configuration

    • getLinkManager

      protected CmsLinkManager getLinkManager()
      Returns the link manager to resolve links in <link> tags.

      Returns:
      the link manager to resolve links in <link> tags

    • getLocaleManager

      protected CmsLocaleManager getLocaleManager()
      Returns the locale manager used for obtaining the current locale.

      Returns:
      the locale manager

    • getLockManager

      protected CmsLockManager getLockManager()
      Returns the lock manager used for the locking mechanism.

      Returns:
      the lock manager used for the locking mechanism

    • getLoginManager

      protected CmsLoginManager getLoginManager()
      Returns the login manager used to check the validity of a login.

      Returns:
      the login manager

    • getMemoryMonitor

      protected CmsMemoryMonitor getMemoryMonitor()
      Returns the memory monitor.

      Returns:
      the memory monitor

    • getModuleManager

      protected CmsModuleManager getModuleManager()
      Returns the module manager.

      Returns:
      the module manager

    • getOrgUnitManager

      protected CmsOrgUnitManager getOrgUnitManager()
      Returns the organizational unit manager.

      Returns:
      the organizational unit manager

    • getPasswordHandler

      protected I_CmsPasswordHandler getPasswordHandler()
      Return the password handler.

      Returns:
      the password handler

    • getPublishManager

      protected CmsPublishManager getPublishManager()
      Returns the publish manager instance.

      Returns:
      the publish manager instance

    • getRepositoryManager

      protected CmsRepositoryManager getRepositoryManager()
      Returns the repository manager.

      Returns:
      the repository manager

    • getRequestHandler

      protected I_CmsRequestHandler getRequestHandler(String name)
      Returns the handler instance for the specified name, or null if the name does not match any handler name.

      Parameters:
      name - the name of the handler instance to return
      Returns:
      the handler instance for the specified name

    • getResourceManager

      protected CmsResourceManager getResourceManager()
      Returns the resource manager.

      Returns:
      the resource manager

    • getRoleManager

      protected CmsRoleManager getRoleManager()
      Returns the role manager.

      Returns:
      the role manager

    • getRunLevel

      protected int getRunLevel()
      Returns the runlevel of this OpenCmsCore object instance.

      For a detailed description about the possible run levels, please see OpenCms.getRunLevel().

      Returns:
      the runlevel of this OpenCmsCore object instance
      See Also:

    • getRuntimeProperty

      protected Object getRuntimeProperty(Object key)
      Looks up a value in the runtime property Map.

      Parameters:
      key - the key to look up in the runtime properties
      Returns:
      the value for the key, or null if the key was not found

    • getScheduleManager

      protected CmsScheduleManager getScheduleManager()
      Returns the configured schedule manager.

      Returns:
      the configured schedule manager

    • getSearchManager

      protected CmsSearchManager getSearchManager()
      Returns the initialized search manager, which provides indexing and searching operations.

      Returns:
      the initialized search manager

    • getSecurityManager

      protected CmsSecurityManager getSecurityManager()
      Returns the initialized OpenCms security manager.

      Returns:
      the initialized OpenCms security manager

    • getSessionManager

      protected CmsSessionManager getSessionManager()
      Returns the session manager.

      Returns:
      the session manager

    • getSiteManager

      protected CmsSiteManagerImpl getSiteManager()
      Returns the initialized site manager, which contains information about all configured sites.

      Returns:
      the initialized site manager

    • getSqlManager

      protected CmsSqlManager getSqlManager()
      Returns an instance of the common sql manager.

      Returns:
      an instance of the common sql manager

    • getStaticExportManager

      protected CmsStaticExportManager getStaticExportManager()
      Returns the properties for the static export.

      Returns:
      the properties for the static export

    • getSubscriptionManager

      protected CmsSubscriptionManager getSubscriptionManager()
      Returns the subscription manager.

      Returns:
      the subscription manager

    • getSystemInfo

      protected CmsSystemInfo getSystemInfo()
      Returns the system information storage.

      Returns:
      the system information storage

    • getTemplateContextManager

      protected CmsTemplateContextManager getTemplateContextManager()
      Gets the template context manager instance.

      Returns:
      the template context manager instance

    • getTextEncryptions

      protected Map<String,I_CmsTextEncryption> getTextEncryptions()
      Gets the text encryptions.
      Returns:
      the text encryptions

    • getThreadStore

      protected CmsThreadStore getThreadStore()
      Returns the OpenCms Thread store.

      Returns:
      the OpenCms Thread store

    • getTwoFactorAuthenticationHandler

      protected CmsTwoFactorAuthenticationHandler getTwoFactorAuthenticationHandler()
      Gets the two-factor authentication handler.
      Returns:
      the two-factor authentication handler

    • getUserDataRequestManager

      protected CmsUserDataRequestManager getUserDataRequestManager()
      Gets the user data request manager.
      Returns:
      the user data request manager

    • getValidationHandler

      protected I_CmsValidationHandler getValidationHandler()
      Returns the runtime validation handler.

      Returns:
      the validation handler

    • getWorkflowManager

      protected I_CmsWorkflowManager getWorkflowManager()
      Returns the workflow manager instance.

      Returns:
      the workflow manager

    • getWorkplaceAppManager

      protected CmsWorkplaceAppManager getWorkplaceAppManager()
      Returns the workplace app manager.

      Returns:
      the workplace app manager

    • getWorkplaceManager

      protected CmsWorkplaceManager getWorkplaceManager()
      Returns the initialized workplace manager, which contains information about the global workplace settings.

      Returns:
      the initialized workplace manager

    • getXmlContentTypeManager

      protected CmsXmlContentTypeManager getXmlContentTypeManager()
      Returns the XML content type manager.

      Returns:
      the XML content type manager

    • initCmsContextForUI

      protected void initCmsContextForUI(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, CmsUIServlet servlet) throws IOException, CmsException
      Initializes the OpenCms context for Vaadin UI servlet.

      Parameters:
      req - the request
      res - the response
      servlet - the UI servlet
      Throws:
      IOException - if user authentication fails
      CmsException - if something goes wrong

    • initCmsObject

      protected CmsObject initCmsObject(CmsObject cms)
      Returns an independent copy of the provided CmsObject.

      This can be useful in case a permanent reference to a CmsObject is stored. Changing the request context values (for example project, siteroot) in the new CmsObject will have no side effects to the CmsObject it was copied form.

      The request time (CmsRequestContext.getRequestTime()) is set to the current time.

      Parameters:
      cms - the CmsObject to create a copy of
      Returns:
      an independent copy of the provided CmsObject
      Throws:
      CmsException - in case the initialization failed
      See Also:

    • initCmsObject

      protected CmsObject initCmsObject(CmsObject adminCms, CmsContextInfo contextInfo) throws CmsRoleViolationException, CmsException
      Returns an initialized CmsObject with the user and context initialized as provided.

      Note: Only if the provided adminCms CmsObject has admin permissions, this method allows the creation a CmsObject for any existing user. Otherwise only the default users 'Guest' and 'Export' can initialized with this method, all other user names will throw an Exception.

      Parameters:
      adminCms - must either be initialized with "Admin" permissions, or null
      contextInfo - the context info to create a CmsObject for
      Returns:
      an initialized CmsObject with the given users permissions
      Throws:
      CmsException - if an invalid user name was provided
      CmsRoleViolationException - if the current user does not have the role permissions to create a context for the requested user
      See Also:

    • initCmsObject

      protected CmsObject initCmsObject(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, boolean allowPrivilegedLogin) throws IOException, CmsException
      Handles the user authentification for each request sent to OpenCms.

      User authentification is done in three steps:

      1. Session authentification: OpenCms stores information of all authentificated users in an internal storage based on the users session.
      2. Authorization handler authentification: If the session authentification fails, the current configured authorization handler is called.
      3. Default user: When both authentification methods fail, the user is set to the default (Guest) user.
      Parameters:
      req - the current http request
      res - the current http response
      allowPrivilegedLogin - true to allow login through authorization handlers
      Returns:
      the initialized cms context
      Throws:
      IOException - if user authentication fails
      CmsException - in case something goes wrong

    • initCmsObject

      protected CmsObject initCmsObject(String user) throws CmsException
      Returns an initialized CmsObject with the user initialized as provided, with the "Online" project selected and "/" set as the current site root.

      Note: Only the default users 'Guest' and 'Export' can initialized with this method, all other user names will throw an Exception.

      Parameters:
      user - the user name to initialize, can only be CmsDefaultUsers.getUserGuest() or CmsDefaultUsers.getUserExport()
      Returns:
      an initialized CmsObject with the given users permissions
      Throws:
      CmsException - if an invalid user name was provided, or if something else goes wrong
      See Also:

    • initCmsObjectFromSession

      protected CmsObject initCmsObjectFromSession(javax.servlet.http.HttpServletRequest req) throws CmsException
      Initializes a new cms object from the session data of the request.

      If no session data is found, null is returned.

      Parameters:
      req - the request
      Returns:
      the new initialized cms object
      Throws:
      CmsException - if something goes wrong

    • initConfiguration

      protected void initConfiguration(CmsParameterConfiguration configuration) throws CmsInitException
      Constructor to create a new OpenCms object.

      It reads the configurations from the opencms.properties file in the config/ subdirectory. With the information from this file is inits a ResourceBroker (Database access module), various caching systems and other options.

      This will only be done once per accessing class.

      Parameters:
      configuration - the configurations from the opencms.properties file
      Throws:
      CmsInitException - in case OpenCms can not be initialized

    • initContext

      protected void initContext(javax.servlet.ServletContext context) throws CmsInitException
      Initialization of the OpenCms runtime environment.

      The connection information for the database is read from the opencms.properties configuration file and all driver manager are initialized via the initializer, which usually will be an instance of a OpenCms class.

      Parameters:
      context - configuration of OpenCms from web.xml
      Throws:
      CmsInitException - in case OpenCms can not be initialized

    • initMembers

      protected void initMembers()
      Initialize member variables.

    • initResource

      protected CmsResource initResource(CmsObject cms, String resourceName, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) throws CmsException
      Reads the requested resource from the OpenCms VFS, in case a directory name is requested, the default files of the directory will be looked up and the first match is returned.

      The resource that is returned is always a CmsFile, even though the content will usually not be loaded in the result. Folders are never returned since the point of this method is really to load the default file if just a folder name is requested. If there is no default file in a folder, then the return value is null and no CmsException is thrown.

      The URI stored in the given OpenCms user context will be changed to the URI of the resource that was found and returned.

      Implementing and configuring an I_CmsResourceInit handler allows to customize the process of default resource selection.

      Parameters:
      cms - the current users OpenCms context
      resourceName - the path of the requested resource in the OpenCms VFS
      req - the current http request
      res - the current http response
      Returns:
      the requested resource read from the VFS
      Throws:
      CmsException - in case the requested file does not exist or the user has insufficient access permissions
      See Also:

    • initServlet

      protected void initServlet(OpenCmsServlet servlet)
      Initializes the system with the OpenCms servlet.

      This is the final step that is called on the servlets "init()" method. It registers the servlets request handler and also outputs the final startup message. The servlet should auto-load since the &ltload-on-startup> parameter is set in the 'web.xml' by default.

      Parameters:
      servlet - the OpenCms servlet

    • invokeBuiltinService

      protected void invokeBuiltinService(String remainingPath, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) throws javax.servlet.ServletException
      Handler for built-in AJAX services that don't belong anywhere else and don't deserve their own request handler.
      Parameters:
      remainingPath - the remainder of the path after /handleBuiltinService
      req - the current request
      res - the current response
      Throws:
      javax.servlet.ServletException - if something goes wrong

    • invokeGwtService

      protected void invokeGwtService(String serviceName, javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res, javax.servlet.ServletConfig servletConfig)
      Invokes the GWT servlet from within OpenCms.

      Parameters:
      serviceName - the GWT PRC service class name
      req - the current servlet request
      res - the current servlet response
      servletConfig - the servlet configuration

    • setRuntimeProperty

      protected void setRuntimeProperty(Object key, Object value)
      This method adds an Object to the OpenCms runtime properties. The runtime properties can be used to store Objects that are shared in the whole system.

      Parameters:
      key - the key to add the Object with
      value - the value of the Object to add

    • showResource

      protected void showResource(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res)
      Displays a resource from the OpenCms by writing the result to the provided Servlet response output stream.

      Parameters:
      req - the current servlet request
      res - the current servlet response

    • shutDown

      protected void shutDown()
      Destroys this OpenCms instance, called if the servlet (or shell) is shut down.

    • updateContext

      protected CmsObject updateContext(javax.servlet.http.HttpServletRequest request, CmsObject cms) throws CmsException
      This method updates the request context information.

      The update information is:

      • Requested Url
      • Locale
      • Encoding
      • Remote Address
      • Request Time
      Parameters:
      request - the current request
      cms - the cms object to update the request context for
      Returns:
      a new updated cms context
      Throws:
      CmsException - if something goes wrong

    • upgradeRunlevel

      protected OpenCmsCore upgradeRunlevel(CmsParameterConfiguration configuration) throws CmsInitException
      Upgrades to runlevel OpenCms.RUNLEVEL_3_SHELL_ACCESS, this is shell access to the database but no Servlet context.

      To upgrade the runlevel, the system must be in runlevel OpenCms.RUNLEVEL_1_CORE_OBJECT, otherwise an exception is thrown.

      Parameters:
      configuration - the configuration
      Returns:
      the initialized OpenCmsCore
      Throws:
      CmsInitException - in case OpenCms can not be initialized

    • upgradeRunlevel

      protected OpenCmsCore upgradeRunlevel(javax.servlet.ServletContext context) throws CmsInitException
      Upgrades to runlevel OpenCms.RUNLEVEL_4_SERVLET_ACCESS, this is the final runlevel with an initialized database and Servlet context.

      To upgrade the runlevel, the system must be in runlevel OpenCms.RUNLEVEL_1_CORE_OBJECT, otherwise an exception is thrown.

      Parameters:
      context - the current servlet context
      Returns:
      the initialized OpenCmsCore
      Throws:
      CmsInitException - in case OpenCms can not be initialized

    • writeConfiguration

      protected void writeConfiguration(Class<?> clazz)
      Writes the XML configuration for the provided configuration class.

      Parameters:
      clazz - the configuration class to write the XML for