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/*
*
* Paros and its related class files.
*
* Paros is an HTTP/HTTPS proxy for assessing web application security.
* Copyright (C) 2003-2004 Chinotec Technologies Company
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Clarified Artistic License
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Clarified Artistic License for more details.
*
* You should have received a copy of the Clarified Artistic License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// ZAP: 2011/11/20 Support for extension factory
// ZAP: 2011/12/14 Support for extension dependencies
// ZAP: 2012/03/17 Issue 282 Added getAuthor() and getURL();
// ZAP: 2012/12/08 Issue 428: Added support for extension specific I18N bundles, to support the
// marketplace
// ZAP: 2013/01/16 Issue 453: Dynamic loading and unloading of add-ons
// ZAP: 2013/08/29 Issue 776: Allow add-ons to warn user if they're closing ZAP with unsaved
// resources open
// ZAP: 2014/02/28 Issue 1057: Add a Extension.postInstall() method for post install actions
// ZAP: 2015/01/04 Issue 1472: Allow extensions to specify a name for UI components
// ZAP: 2015/01/19 Issue 1510: New Extension.postInit() method to be called once all extensions
// loaded
// ZAP: 2015/02/09 Issue 1525: Introduce a database interface layer to allow for alternative
// implementations
// ZAP: 2015/02/10 Issue 1208: Search classes/resources in add-ons declared as dependencies
// ZAP: 2015/03/16 Issue 1525: Further database independence changes
// ZAP: 2015/03/30 Issue 1582: Enablers for low memory option
// ZAP: 2016/09/26 JavaDoc tweaks
// ZAP: 2017/02/17 Expose ExtensionHook to allow core code remove/unhook the extension.
// ZAP: 2017/05/22 Use Class for dependencies of the extension.
// ZAP: 2017/05/25 Add JavaDoc to isEnabled/setEnabled.
// ZAP: 2018/06/01 Add JavaDoc to getMessages/setMessages.
// ZAP: 2018/10/09 Remove getExtensionHook and add JavaDoc to hook.
// ZAP: 2018/04/17 Deprecate getVersion().
// ZAP: 2019/06/01 Normalise line endings.
// ZAP: 2019/06/05 Normalise format/style.
// ZAP: 2019/09/12 Add defaults to getAuthor() and getURL().
package org.parosproxy.paros.extension;
import java.net.URL;
import java.util.List;
import java.util.ResourceBundle;
import org.parosproxy.paros.db.Database;
import org.parosproxy.paros.db.DatabaseException;
import org.parosproxy.paros.db.DatabaseUnsupportedException;
import org.parosproxy.paros.model.Model;
import org.parosproxy.paros.model.OptionsParam;
import org.parosproxy.paros.model.Session;
import org.zaproxy.zap.Version;
import org.zaproxy.zap.control.AddOn;
/**
* Life cycle for an extension . init . initModel - the extension obtain the data model . initXML .
* getExtensionHook - workbench obtain the view of the plugin . start() . stop() . May go back to 5
* depending on options or menu chosen. . destroy
*/
public interface Extension {
/**
* Returns the name of the extension, for configurations and access from other components (e.g.
* extensions).
*
* @return the name of the extension, never {@code null}
* @see #getUIName()
*/
String getName();
/**
* Returns a short descriptive name of the extension, to be shown in UI components. The name
* must be internationalised.
*
* @return the UI name of the extension, never {@code null}
* @since 2.4.0
* @see #getName()
* @see #getDescription()
*/
String getUIName();
/**
* Returns the description of the extension, to be shown in UI components. The description must
* be internationalised.
*
* @return the description of the extension, never {@code null}
*/
String getDescription();
/**
* Returns the (semantic) version of this extension, {@code null} if not versioned
*
* @return the version of the extension, or {@code null} if not versioned
* @since 2.4.0
* @deprecated (2.8.0) Don't override, not used.
*/
@Deprecated
default Version getVersion() {
return null;
}
/** Initialize plugin during startup. This phase is carried out before all others. */
void init();
/**
* Initialization of plugin after obtaining data model from core. Method should not depend on
* view.
*
* @param model the model
*/
void initModel(Model model);
void initView(ViewDelegate view);
Model getModel();
ViewDelegate getView();
/** Start the plugin e.g. if there is a running server. */
void start();
/** stop the plugin e.g. if there is a running server. */
void stop();
/**
* Plugin cleanup, finalize, etc. when program shutdown. Stop() will be called before shutdown.
*/
void destroy();
/**
* Initialize session and options parameter if required XML node not in either files.
*
* @param session the current session
* @param options the options
*/
void initXML(Session session, OptionsParam options);
/**
* Called during extension's initialisation to allow to add new functionality to core
* components.
*
* @param hook the hook to add the components.
*/
void hook(ExtensionHook hook);
boolean isDepreciated();
int getOrder();
void setOrder(int order);
/**
* Tells whether or not this extension is enabled.
*
* Extensions might be disabled by the user (for example, through GUI), or, automatically
* during loading if all its dependencies are not fulfilled.
*
* @return {@code true} if the extension is enabled, {@code false} otherwise.
*/
boolean isEnabled();
/**
* Sets whether or not this extension is enabled.
*
*
Note: This method should be called only by bootstrap classes.
*
* @param enabled {@code true} if the extension should be enabled, {@code false} otherwise.
*/
void setEnabled(boolean enabled);
/**
* Gets the list of {@code Extension}s that this extension depends on.
*
* @return the list of dependencies, empty (or {@code null}) if none.
*/
List> getDependencies();
boolean isCore();
/**
* Gets the author of the extension.
*
* Since 2.9.0 defaults to the author of the add-on, if set, otherwise an empty string.
*
* @return the author of the extension, might be {@code null}.
* @since 1.4.0
*/
default String getAuthor() {
AddOn addOn = getAddOn();
if (addOn != null) {
return addOn.getAuthor();
}
return "";
}
/**
* Gets the URL to info about the extension.
*
*
Since 2.9.0 defaults to the info URL of the add-on, if set, otherwise {@code null}.
*
* @return the URL to info about the extension, might be {@code null}.
* @since 1.4.0
*/
default URL getURL() {
AddOn addOn = getAddOn();
if (addOn != null) {
return addOn.getInfo();
}
return null;
}
/**
* Gets the resource bundle of the extension.
*
*
Set during start up based on the available resource bundles:
*
*
* - extension's resource bundle, located in the {@code resources} directory under the
* extension's package;
*
- add-on's resource bundle;
*
- core resource bundle;
*
*
* @return the resource bundle, never {@code null}.
* @since 2.0.0
*/
ResourceBundle getMessages();
/**
* Sets the resource bundle of the extension.
*
* Note: This method should be called only by bootstrap classes.
*
* @param messages the resource bundle of the extension.
* @since 2.0.0
*/
void setMessages(ResourceBundle messages);
String getI18nPrefix();
void setI18nPrefix(String prefix);
/**
* Called after the options for this extension have been loaded, so that the extension can make
* use of them. Note that other add-ons may not have been loaded at this point - if you need
* them to be then implement postInit()
*
* @see #postInit()
*/
void optionsLoaded();
boolean canUnload();
/**
* Unloads any component manually added to ZAP or other extensions (that is, a component that
* was not added through the {@code ExtensionHook}).
*
*
Should be called only by core functionality (e.g. during uninstallation of the extension).
*
* @see #hook(ExtensionHook)
*/
void unload();
/**
* Extensions should return the user friendly names of any unsaved resources - if there are any
* the user will be given the option not to exit ZAP or, if the extension is bundled in an
* add-on that's being updated or uninstalled, not to continue with the changes.
*
* @return a {@code List} containing the unsaved resources or {@code null} if none
* @since 2.2.0
* @see #getActiveActions()
*/
List getUnsavedResources();
/**
* Returns the (internationalised) names of all active actions of the extension - if there are
* any the user will be given the option not to exit ZAP or, if the extension is bundled in an
* add-on that's being updated or uninstalled, not to continue with the changes.
*
* An active action is something that's started by the user, for example, a scan.
*
* @return a {@code List} containing the active actions or {@code null} if none
* @since 2.4.0
* @see #getUnsavedResources()
*/
List getActiveActions();
/**
* Implement this method to perform tasks after the add-on is installed. Note that this will
* only be called if the user adds the add-on via ZAP, e.g. file the File menu or the
* Marketplace. If the add-on is installed by copying the file to the plugins directory then it
* will not be called.
*
* @since 2.3.0
* @see #postInit()
*/
void postInstall();
/**
* Implement this method to perform tasks after all extensions/add-ons have been initialised.
*
* @since 2.4.0
* @see #postInstall()
*/
void postInit();
/**
* Implement this method to register database tables to be used by the add-on
*
* @param db the database opened
* @throws DatabaseException if an error occurred while reading the database contents
* @throws DatabaseUnsupportedException if the database is not supported by the extension
*/
void databaseOpen(Database db) throws DatabaseException, DatabaseUnsupportedException;
/**
* Returns the add-on where this extension is bundled. Might be {@code null} if core extension.
*
* @return the add-on where this extension is bundled, or {@code null} if core extension.
* @since 2.4.0
*/
AddOn getAddOn();
/**
* Sets the add-on where this extension is bundled.
*
* Note: This method should be called only by bootstrap classes.
*
* @param addOn the add-on where this extension is bundled
* @since 2.4.0
*/
void setAddOn(AddOn addOn);
/**
* Return true if the specified db type is supported by the extension (or if it doesn't use any
* db) If this method returns false (meaning the db in use is not supported) then the extension
* will not be loaded.
*
* @param type the db type
* @return true if the specified db type is supported by the extension (or if it doesn't use any
* db)
* @see org.parosproxy.paros.db.Database#getType()
*/
boolean supportsDb(String type);
/**
* Return true it the extension can run with the 'low memory' option. If the low memory option
* is set (and the extension supports it) then code should minimize the data stored in memory,
* using the db for all significant data. Extensions that do not support the low memory option
* will not be run if the option is set.
*
* @return {@code true} if the extension support the 'low memory' option, {@code false}
* otherwise
*/
boolean supportsLowMemory();
}