357 lines
11 KiB
PHP
357 lines
11 KiB
PHP
<?php
|
|
|
|
if (!defined('DOKU_INC')) die();
|
|
|
|
class RemoteException extends Exception {}
|
|
class RemoteAccessDeniedException extends RemoteException {}
|
|
|
|
/**
|
|
* This class provides information about remote access to the wiki.
|
|
*
|
|
* == Types of methods ==
|
|
* There are two types of remote methods. The first is the core methods.
|
|
* These are always available and provided by dokuwiki.
|
|
* The other is plugin methods. These are provided by remote plugins.
|
|
*
|
|
* == Information structure ==
|
|
* The information about methods will be given in an array with the following structure:
|
|
* array(
|
|
* 'method.remoteName' => array(
|
|
* 'args' => array(
|
|
* 'type eg. string|int|...|date|file',
|
|
* )
|
|
* 'name' => 'method name in class',
|
|
* 'return' => 'type',
|
|
* 'public' => 1/0 - method bypass default group check (used by login)
|
|
* ['doc' = 'method documentation'],
|
|
* )
|
|
* )
|
|
*
|
|
* plugin names are formed the following:
|
|
* core methods begin by a 'dokuwiki' or 'wiki' followed by a . and the method name itself.
|
|
* i.e.: dokuwiki.version or wiki.getPage
|
|
*
|
|
* plugin methods are formed like 'plugin.<plugin name>.<method name>'.
|
|
* i.e.: plugin.clock.getTime or plugin.clock_gmt.getTime
|
|
*
|
|
* @throws RemoteException
|
|
*/
|
|
class RemoteAPI {
|
|
|
|
/**
|
|
* @var RemoteAPICore
|
|
*/
|
|
private $coreMethods = null;
|
|
|
|
/**
|
|
* @var array remote methods provided by dokuwiki plugins - will be filled lazy via
|
|
* {@see RemoteAPI#getPluginMethods}
|
|
*/
|
|
private $pluginMethods = null;
|
|
|
|
/**
|
|
* @var array contains custom calls to the api. Plugins can use the XML_CALL_REGISTER event.
|
|
* The data inside is 'custom.call.something' => array('plugin name', 'remote method name')
|
|
*
|
|
* The remote method name is the same as in the remote name returned by _getMethods().
|
|
*/
|
|
private $pluginCustomCalls = null;
|
|
|
|
private $dateTransformation;
|
|
private $fileTransformation;
|
|
|
|
/**
|
|
* constructor
|
|
*/
|
|
public function __construct() {
|
|
$this->dateTransformation = array($this, 'dummyTransformation');
|
|
$this->fileTransformation = array($this, 'dummyTransformation');
|
|
}
|
|
|
|
/**
|
|
* Get all available methods with remote access.
|
|
*
|
|
* @return array with information to all available methods
|
|
*/
|
|
public function getMethods() {
|
|
return array_merge($this->getCoreMethods(), $this->getPluginMethods());
|
|
}
|
|
|
|
/**
|
|
* Call a method via remote api.
|
|
*
|
|
* @param string $method name of the method to call.
|
|
* @param array $args arguments to pass to the given method
|
|
* @return mixed result of method call, must be a primitive type.
|
|
*/
|
|
public function call($method, $args = array()) {
|
|
if ($args === null) {
|
|
$args = array();
|
|
}
|
|
list($type, $pluginName, /* $call */) = explode('.', $method, 3);
|
|
if ($type === 'plugin') {
|
|
return $this->callPlugin($pluginName, $method, $args);
|
|
}
|
|
if ($this->coreMethodExist($method)) {
|
|
return $this->callCoreMethod($method, $args);
|
|
}
|
|
return $this->callCustomCallPlugin($method, $args);
|
|
}
|
|
|
|
/**
|
|
* Check existance of core methods
|
|
*
|
|
* @param string $name name of the method
|
|
* @return bool if method exists
|
|
*/
|
|
private function coreMethodExist($name) {
|
|
$coreMethods = $this->getCoreMethods();
|
|
return array_key_exists($name, $coreMethods);
|
|
}
|
|
|
|
/**
|
|
* Try to call custom methods provided by plugins
|
|
*
|
|
* @param string $method name of method
|
|
* @param array $args
|
|
* @return mixed
|
|
* @throws RemoteException if method not exists
|
|
*/
|
|
private function callCustomCallPlugin($method, $args) {
|
|
$customCalls = $this->getCustomCallPlugins();
|
|
if (!array_key_exists($method, $customCalls)) {
|
|
throw new RemoteException('Method does not exist', -32603);
|
|
}
|
|
$customCall = $customCalls[$method];
|
|
return $this->callPlugin($customCall[0], $customCall[1], $args);
|
|
}
|
|
|
|
/**
|
|
* Returns plugin calls that are registered via RPC_CALL_ADD action
|
|
*
|
|
* @return array with pairs of custom plugin calls
|
|
* @triggers RPC_CALL_ADD
|
|
*/
|
|
private function getCustomCallPlugins() {
|
|
if ($this->pluginCustomCalls === null) {
|
|
$data = array();
|
|
trigger_event('RPC_CALL_ADD', $data);
|
|
$this->pluginCustomCalls = $data;
|
|
}
|
|
return $this->pluginCustomCalls;
|
|
}
|
|
|
|
/**
|
|
* Call a plugin method
|
|
*
|
|
* @param string $pluginName
|
|
* @param string $method method name
|
|
* @param array $args
|
|
* @return mixed return of custom method
|
|
* @throws RemoteException
|
|
*/
|
|
private function callPlugin($pluginName, $method, $args) {
|
|
$plugin = plugin_load('remote', $pluginName);
|
|
$methods = $this->getPluginMethods();
|
|
if (!$plugin) {
|
|
throw new RemoteException('Method does not exist', -32603);
|
|
}
|
|
$this->checkAccess($methods[$method]);
|
|
$name = $this->getMethodName($methods, $method);
|
|
return call_user_func_array(array($plugin, $name), $args);
|
|
}
|
|
|
|
/**
|
|
* Call a core method
|
|
*
|
|
* @param string $method name of method
|
|
* @param array $args
|
|
* @return mixed
|
|
* @throws RemoteException if method not exist
|
|
*/
|
|
private function callCoreMethod($method, $args) {
|
|
$coreMethods = $this->getCoreMethods();
|
|
$this->checkAccess($coreMethods[$method]);
|
|
if (!isset($coreMethods[$method])) {
|
|
throw new RemoteException('Method does not exist', -32603);
|
|
}
|
|
$this->checkArgumentLength($coreMethods[$method], $args);
|
|
return call_user_func_array(array($this->coreMethods, $this->getMethodName($coreMethods, $method)), $args);
|
|
}
|
|
|
|
/**
|
|
* Check if access should be checked
|
|
*
|
|
* @param array $methodMeta data about the method
|
|
*/
|
|
private function checkAccess($methodMeta) {
|
|
if (!isset($methodMeta['public'])) {
|
|
$this->forceAccess();
|
|
} else{
|
|
if ($methodMeta['public'] == '0') {
|
|
$this->forceAccess();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check the number of parameters
|
|
*
|
|
* @param array $methodMeta data about the method
|
|
* @param array $args
|
|
* @throws RemoteException if wrong parameter count
|
|
*/
|
|
private function checkArgumentLength($methodMeta, $args) {
|
|
if (count($methodMeta['args']) < count($args)) {
|
|
throw new RemoteException('Method does not exist - wrong parameter count.', -32603);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine the name of the real method
|
|
*
|
|
* @param array $methodMeta list of data of the methods
|
|
* @param string $method name of method
|
|
* @return string
|
|
*/
|
|
private function getMethodName($methodMeta, $method) {
|
|
if (isset($methodMeta[$method]['name'])) {
|
|
return $methodMeta[$method]['name'];
|
|
}
|
|
$method = explode('.', $method);
|
|
return $method[count($method)-1];
|
|
}
|
|
|
|
/**
|
|
* Perform access check for current user
|
|
*
|
|
* @return bool true if the current user has access to remote api.
|
|
* @throws RemoteAccessDeniedException If remote access disabled
|
|
*/
|
|
public function hasAccess() {
|
|
global $conf;
|
|
global $USERINFO;
|
|
/** @var Input $INPUT */
|
|
global $INPUT;
|
|
|
|
if (!$conf['remote']) {
|
|
throw new RemoteAccessDeniedException('server error. RPC server not enabled.',-32604); //should not be here,just throw
|
|
}
|
|
if(trim($conf['remoteuser']) == '!!not set!!') {
|
|
return false;
|
|
}
|
|
if(!$conf['useacl']) {
|
|
return true;
|
|
}
|
|
if(trim($conf['remoteuser']) == '') {
|
|
return true;
|
|
}
|
|
|
|
return auth_isMember($conf['remoteuser'], $INPUT->server->str('REMOTE_USER'), (array) $USERINFO['grps']);
|
|
}
|
|
|
|
/**
|
|
* Requests access
|
|
*
|
|
* @return void
|
|
* @throws RemoteException On denied access.
|
|
*/
|
|
public function forceAccess() {
|
|
if (!$this->hasAccess()) {
|
|
throw new RemoteAccessDeniedException('server error. not authorized to call method', -32604);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Collects all the methods of the enabled Remote Plugins
|
|
*
|
|
* @return array all plugin methods.
|
|
* @throws RemoteException if not implemented
|
|
*/
|
|
public function getPluginMethods() {
|
|
if ($this->pluginMethods === null) {
|
|
$this->pluginMethods = array();
|
|
$plugins = plugin_list('remote');
|
|
|
|
foreach ($plugins as $pluginName) {
|
|
/** @var DokuWiki_Remote_Plugin $plugin */
|
|
$plugin = plugin_load('remote', $pluginName);
|
|
if (!is_subclass_of($plugin, 'DokuWiki_Remote_Plugin')) {
|
|
throw new RemoteException("Plugin $pluginName does not implement DokuWiki_Remote_Plugin");
|
|
}
|
|
|
|
$methods = $plugin->_getMethods();
|
|
foreach ($methods as $method => $meta) {
|
|
$this->pluginMethods["plugin.$pluginName.$method"] = $meta;
|
|
}
|
|
}
|
|
}
|
|
return $this->pluginMethods;
|
|
}
|
|
|
|
/**
|
|
* Collects all the core methods
|
|
*
|
|
* @param RemoteAPICore $apiCore this parameter is used for testing. Here you can pass a non-default RemoteAPICore
|
|
* instance. (for mocking)
|
|
* @return array all core methods.
|
|
*/
|
|
public function getCoreMethods($apiCore = null) {
|
|
if ($this->coreMethods === null) {
|
|
if ($apiCore === null) {
|
|
$this->coreMethods = new RemoteAPICore($this);
|
|
} else {
|
|
$this->coreMethods = $apiCore;
|
|
}
|
|
}
|
|
return $this->coreMethods->__getRemoteInfo();
|
|
}
|
|
|
|
/**
|
|
* Transform file to xml
|
|
*
|
|
* @param mixed $data
|
|
* @return mixed
|
|
*/
|
|
public function toFile($data) {
|
|
return call_user_func($this->fileTransformation, $data);
|
|
}
|
|
|
|
/**
|
|
* Transform date to xml
|
|
*
|
|
* @param mixed $data
|
|
* @return mixed
|
|
*/
|
|
public function toDate($data) {
|
|
return call_user_func($this->dateTransformation, $data);
|
|
}
|
|
|
|
/**
|
|
* A simple transformation
|
|
*
|
|
* @param mixed $data
|
|
* @return mixed
|
|
*/
|
|
public function dummyTransformation($data) {
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Set the transformer function
|
|
*
|
|
* @param callback $dateTransformation
|
|
*/
|
|
public function setDateTransformation($dateTransformation) {
|
|
$this->dateTransformation = $dateTransformation;
|
|
}
|
|
|
|
/**
|
|
* Set the transformer function
|
|
*
|
|
* @param callback $fileTransformation
|
|
*/
|
|
public function setFileTransformation($fileTransformation) {
|
|
$this->fileTransformation = $fileTransformation;
|
|
}
|
|
}
|