xref: /dokuwiki/inc/Action/AbstractAction.php (revision ec7012214a693c8b3103377245a7d797cf8f9608)
164ab5140SAndreas Gohr<?php
264ab5140SAndreas Gohr
364ab5140SAndreas Gohrnamespace dokuwiki\Action;
464ab5140SAndreas Gohr
564ab5140SAndreas Gohruse dokuwiki\Action\Exception\ActionDisabledException;
664ab5140SAndreas Gohruse dokuwiki\Action\Exception\ActionException;
7f21dad39SAndreas Gohruse dokuwiki\Action\Exception\FatalException;
864ab5140SAndreas Gohr
9ab583a1bSAndreas Gohr/**
10ab583a1bSAndreas Gohr * Class AbstractAction
11ab583a1bSAndreas Gohr *
12ab583a1bSAndreas Gohr * Base class for all actions
13ab583a1bSAndreas Gohr *
14ab583a1bSAndreas Gohr * @package dokuwiki\Action
15ab583a1bSAndreas Gohr */
1664ab5140SAndreas Gohrabstract class AbstractAction {
1764ab5140SAndreas Gohr
1864ab5140SAndreas Gohr    /** @var string holds the name of the action (lowercase class name, no namespace) */
1964ab5140SAndreas Gohr    protected $actionname;
2064ab5140SAndreas Gohr
2164ab5140SAndreas Gohr    /**
2264ab5140SAndreas Gohr     * AbstractAction constructor.
2373522543SAndreas Gohr     *
2473522543SAndreas Gohr     * @param string $actionname the name of this action (see getActioName() for caveats)
2564ab5140SAndreas Gohr     */
266e4bf08eSAndreas Gohr    public function __construct($actionname='') {
276e4bf08eSAndreas Gohr        if($actionname !== '') {
2873522543SAndreas Gohr            $this->actionname = $actionname;
296e4bf08eSAndreas Gohr        } else {
306e4bf08eSAndreas Gohr            // http://stackoverflow.com/a/27457689/172068
316e4bf08eSAndreas Gohr            $this->actionname = strtolower(substr(strrchr(get_class($this), '\\'), 1));
326e4bf08eSAndreas Gohr        }
3364ab5140SAndreas Gohr    }
3464ab5140SAndreas Gohr
3564ab5140SAndreas Gohr    /**
3664ab5140SAndreas Gohr     * Return the minimum permission needed
3764ab5140SAndreas Gohr     *
3864ab5140SAndreas Gohr     * This needs to return one of the AUTH_* constants. It will be checked against
3964ab5140SAndreas Gohr     * the current user and page after checkPermissions() ran through. If it fails,
4064ab5140SAndreas Gohr     * the user will be shown the Denied action.
4164ab5140SAndreas Gohr     *
4264ab5140SAndreas Gohr     * @return int
4364ab5140SAndreas Gohr     */
44*ec701221SAndreas Gohr    abstract public function minimumPermission();
4564ab5140SAndreas Gohr
4664ab5140SAndreas Gohr    /**
4764ab5140SAndreas Gohr     * Check permissions are correct to run this action
4864ab5140SAndreas Gohr     *
4964ab5140SAndreas Gohr     * @throws ActionException
5064ab5140SAndreas Gohr     * @return void
5164ab5140SAndreas Gohr     */
5264ab5140SAndreas Gohr    public function checkPermissions() {
5364ab5140SAndreas Gohr        if(!actionOK($this->actionname)) throw new ActionDisabledException();
5464ab5140SAndreas Gohr    }
5564ab5140SAndreas Gohr
5664ab5140SAndreas Gohr    /**
5764ab5140SAndreas Gohr     * Process data
5864ab5140SAndreas Gohr     *
5964ab5140SAndreas Gohr     * This runs before any output is sent to the browser.
6064ab5140SAndreas Gohr     *
6164ab5140SAndreas Gohr     * Throw an Exception if a different action should be run after this step.
6264ab5140SAndreas Gohr     *
6364ab5140SAndreas Gohr     * @throws ActionException
6464ab5140SAndreas Gohr     * @return void
6564ab5140SAndreas Gohr     */
6664ab5140SAndreas Gohr    public function preProcess() {
6764ab5140SAndreas Gohr    }
6864ab5140SAndreas Gohr
6964ab5140SAndreas Gohr    /**
7064ab5140SAndreas Gohr     * Output whatever content is wanted within tpl_content();
71f21dad39SAndreas Gohr     *
72f21dad39SAndreas Gohr     * @fixme we may want to return a Ui class here
7364ab5140SAndreas Gohr     */
7464ab5140SAndreas Gohr    public function tplContent() {
75f21dad39SAndreas Gohr        throw new FatalException('No content for Action ' . $this->actionname);
76f21dad39SAndreas Gohr    }
77f21dad39SAndreas Gohr
78f21dad39SAndreas Gohr    /**
7973522543SAndreas Gohr     * Returns the name of this action
8073522543SAndreas Gohr     *
8173522543SAndreas Gohr     * This is usually the lowercased class name, but may differ for some actions.
8273522543SAndreas Gohr     * eg. the export_ modes or for the Plugin action.
8373522543SAndreas Gohr     *
84f21dad39SAndreas Gohr     * @return string
85f21dad39SAndreas Gohr     */
86f21dad39SAndreas Gohr    public function getActionName() {
87f21dad39SAndreas Gohr        return $this->actionname;
8864ab5140SAndreas Gohr    }
8964ab5140SAndreas Gohr}
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