605 lines
20 KiB
PHP
605 lines
20 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @copyright 2010 Frank Karlitschek karlitschek@kde.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Class to handle open collaboration services API requests
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*
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*/
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class OC_OCS {
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/**
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* reads input date from get/post/cookies and converts the date to a special data-type
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*
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* @param variable $key
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* @param variable-type $type
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* @param priority $getpriority
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* @param default $default
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* @return data
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*/
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public static function readData($key,$type='raw',$getpriority=false,$default='') {
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if($getpriority) {
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if(isset($_GET[$key])) {
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$data=$_GET[$key];
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} elseif(isset($_POST[$key])) {
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$data=$_POST[$key];
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} else {
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if($default=='') {
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if(($type=='int') or ($type=='float')) $data=0; else $data='';
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} else {
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$data=$default;
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}
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}
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} else {
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if(isset($_POST[$key])) {
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$data=$_POST[$key];
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} elseif(isset($_GET[$key])) {
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$data=$_GET[$key];
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} elseif(isset($_COOKIE[$key])) {
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$data=$_COOKIE[$key];
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} else {
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if($default=='') {
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if(($type=='int') or ($type=='float')) $data=0; else $data='';
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} else {
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$data=$default;
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}
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}
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}
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if($type=='raw') return($data);
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elseif($type=='text') return(addslashes(strip_tags($data)));
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elseif($type=='int') { $data = (int) $data; return($data); }
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elseif($type=='float') { $data = (float) $data; return($data); }
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elseif($type=='array') { $data = $data; return($data); }
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}
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/**
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main function to handle the REST request
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**/
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public static function handle() {
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// overwrite the 404 error page returncode
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header("HTTP/1.0 200 OK");
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if($_SERVER['REQUEST_METHOD'] == 'GET') {
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$method='get';
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}elseif($_SERVER['REQUEST_METHOD'] == 'PUT') {
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$method='put';
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parse_str(file_get_contents("php://input"),$put_vars);
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}elseif($_SERVER['REQUEST_METHOD'] == 'POST') {
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$method='post';
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}else{
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echo('internal server error: method not supported');
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exit();
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}
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// preprocess url
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$url=$_SERVER['REQUEST_URI'];
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if(substr($url,(strlen($url)-1))<>'/') $url.='/';
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$ex=explode('/',$url);
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$paracount=count($ex);
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// eventhandler
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// CONFIG
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// apiconfig - GET - CONFIG
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if(($method=='get') and (strtolower($ex[$paracount-3])=='v1.php') and (strtolower($ex[$paracount-2])=='config')){
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$format=OC_OCS::readdata('format','text');
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OC_OCS::apiconfig($format);
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// PERSON
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// personcheck - POST - PERSON/CHECK
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}elseif(($method=='post') and (strtolower($ex[$paracount-4])=='v1.php') and (strtolower($ex[$paracount-3])=='person') and (strtolower($ex[$paracount-2])=='check')){
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$format=OC_OCS::readdata('format','text');
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$login=OC_OCS::readdata('login','text');
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$passwd=OC_OCS::readdata('password','text');
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OC_OCS::personcheck($format,$login,$passwd);
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// ACTIVITY
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// activityget - GET ACTIVITY page,pagesize als urlparameter
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}elseif(($method=='get') and (strtolower($ex[$paracount-3])=='v1.php')and (strtolower($ex[$paracount-2])=='activity')){
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$format=OC_OCS::readdata('format','text');
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$page=OC_OCS::readdata('page','int');
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$pagesize=OC_OCS::readdata('pagesize','int');
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if($pagesize<1 or $pagesize>100) $pagesize=10;
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OC_OCS::activityget($format,$page,$pagesize);
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// activityput - POST ACTIVITY
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}elseif(($method=='post') and (strtolower($ex[$paracount-3])=='v1.php')and (strtolower($ex[$paracount-2])=='activity')){
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$format=OC_OCS::readdata('format','text');
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$message=OC_OCS::readdata('message','text');
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OC_OCS::activityput($format,$message);
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// PRIVATEDATA
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// get - GET DATA
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}elseif(($method=='get') and (strtolower($ex[$paracount-4])=='v1.php')and (strtolower($ex[$paracount-2])=='getattribute')){
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$format=OC_OCS::readdata('format','text');
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OC_OCS::privateDataGet($format);
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}elseif(($method=='get') and (strtolower($ex[$paracount-5])=='v1.php')and (strtolower($ex[$paracount-3])=='getattribute')){
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$format=OC_OCS::readdata('format','text');
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$app=$ex[$paracount-2];
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OC_OCS::privateDataGet($format, $app);
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}elseif(($method=='get') and (strtolower($ex[$paracount-6])=='v1.php')and (strtolower($ex[$paracount-4])=='getattribute')){
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$format=OC_OCS::readdata('format','text');
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$key=$ex[$paracount-2];
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$app=$ex[$paracount-3];
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OC_OCS::privateDataGet($format, $app,$key);
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// set - POST DATA
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}elseif(($method=='post') and (strtolower($ex[$paracount-6])=='v1.php')and (strtolower($ex[$paracount-4])=='setattribute')){
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$format=OC_OCS::readdata('format','text');
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$key=$ex[$paracount-2];
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$app=$ex[$paracount-3];
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$value=OC_OCS::readdata('value','text');
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OC_OCS::privatedataset($format, $app, $key, $value);
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// delete - POST DATA
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}elseif(($method=='post') and (strtolower($ex[$paracount-6])=='v1.php')and (strtolower($ex[$paracount-4])=='deleteattribute')){
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$format=OC_OCS::readdata('format','text');
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$key=$ex[$paracount-2];
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$app=$ex[$paracount-3];
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OC_OCS::privatedatadelete($format, $app, $key);
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}else{
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$format=OC_OCS::readdata('format','text');
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$txt='Invalid query, please check the syntax. API specifications are here: http://www.freedesktop.org/wiki/Specifications/open-collaboration-services. DEBUG OUTPUT:'."\n";
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$txt.=OC_OCS::getdebugoutput();
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echo(OC_OCS::generatexml($format,'failed',999,$txt));
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}
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exit();
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}
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/**
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* generated some debug information to make it easier to find faild API calls
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* @return debug data string
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*/
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private static function getDebugOutput() {
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$txt='';
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$txt.="debug output:\n";
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if(isset($_SERVER['REQUEST_METHOD'])) $txt.='http request method: '.$_SERVER['REQUEST_METHOD']."\n";
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if(isset($_SERVER['REQUEST_URI'])) $txt.='http request uri: '.$_SERVER['REQUEST_URI']."\n";
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if(isset($_GET)) foreach($_GET as $key=>$value) $txt.='get parameter: '.$key.'->'.$value."\n";
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if(isset($_POST)) foreach($_POST as $key=>$value) $txt.='post parameter: '.$key.'->'.$value."\n";
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return($txt);
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}
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/**
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* checks if the user is authenticated
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* checks the IP whitlist, apikeys and login/password combination
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* if $forceuser is true and the authentication failed it returns an 401 http response.
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* if $forceuser is false and authentification fails it returns an empty username string
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* @param bool $forceuser
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* @return username string
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*/
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private static function checkPassword($forceuser=true) {
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//valid user account ?
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if(isset($_SERVER['PHP_AUTH_USER'])) $authuser=$_SERVER['PHP_AUTH_USER']; else $authuser='';
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if(isset($_SERVER['PHP_AUTH_PW'])) $authpw=$_SERVER['PHP_AUTH_PW']; else $authpw='';
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if(empty($authuser)) {
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if($forceuser){
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header('WWW-Authenticate: Basic realm="your valid user account or api key"');
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header('HTTP/1.0 401 Unauthorized');
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exit;
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}else{
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$identifieduser='';
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}
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}else{
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if(!OC_USER::login($authuser,$authpw)){
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if($forceuser){
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header('WWW-Authenticate: Basic realm="your valid user account or api key"');
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header('HTTP/1.0 401 Unauthorized');
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exit;
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}else{
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$identifieduser='';
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}
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}else{
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$identifieduser=$authuser;
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}
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}
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return($identifieduser);
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}
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/**
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* generates the xml or json response for the API call from an multidimenional data array.
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* @param string $format
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* @param string $status
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* @param string $statuscode
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* @param string $message
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* @param array $data
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* @param string $tag
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* @param string $tagattribute
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* @param int $dimension
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* @param int $itemscount
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* @param int $itemsperpage
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* @return string xml/json
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*/
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private static function generateXml($format,$status,$statuscode,$message,$data=array(),$tag='',$tagattribute='',$dimension=-1,$itemscount='',$itemsperpage='') {
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if($format=='json') {
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$json=array();
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$json['status']=$status;
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$json['statuscode']=$statuscode;
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$json['message']=$message;
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$json['totalitems']=$itemscount;
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$json['itemsperpage']=$itemsperpage;
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$json['data']=$data;
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return(json_encode($json));
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}else{
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$txt='';
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$writer = xmlwriter_open_memory();
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xmlwriter_set_indent( $writer, 2 );
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xmlwriter_start_document($writer );
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xmlwriter_start_element($writer,'ocs');
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xmlwriter_start_element($writer,'meta');
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xmlwriter_write_element($writer,'status',$status);
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xmlwriter_write_element($writer,'statuscode',$statuscode);
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xmlwriter_write_element($writer,'message',$message);
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if($itemscount<>'') xmlwriter_write_element($writer,'totalitems',$itemscount);
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if(!empty($itemsperpage)) xmlwriter_write_element($writer,'itemsperpage',$itemsperpage);
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xmlwriter_end_element($writer);
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if($dimension=='0') {
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// 0 dimensions
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xmlwriter_write_element($writer,'data',$data);
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}elseif($dimension=='1') {
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xmlwriter_start_element($writer,'data');
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foreach($data as $key=>$entry) {
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xmlwriter_write_element($writer,$key,$entry);
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}
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xmlwriter_end_element($writer);
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}elseif($dimension=='2') {
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xmlwriter_start_element($writer,'data');
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foreach($data as $entry) {
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xmlwriter_start_element($writer,$tag);
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if(!empty($tagattribute)) {
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xmlwriter_write_attribute($writer,'details',$tagattribute);
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}
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foreach($entry as $key=>$value) {
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if(is_array($value)){
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foreach($value as $k=>$v) {
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xmlwriter_write_element($writer,$k,$v);
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}
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} else {
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xmlwriter_write_element($writer,$key,$value);
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}
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}
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xmlwriter_end_element($writer);
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}
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xmlwriter_end_element($writer);
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}elseif($dimension=='3') {
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xmlwriter_start_element($writer,'data');
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foreach($data as $entrykey=>$entry) {
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xmlwriter_start_element($writer,$tag);
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if(!empty($tagattribute)) {
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xmlwriter_write_attribute($writer,'details',$tagattribute);
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}
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foreach($entry as $key=>$value) {
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if(is_array($value)){
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xmlwriter_start_element($writer,$entrykey);
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foreach($value as $k=>$v) {
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xmlwriter_write_element($writer,$k,$v);
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}
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xmlwriter_end_element($writer);
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} else {
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xmlwriter_write_element($writer,$key,$value);
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}
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}
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xmlwriter_end_element($writer);
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}
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xmlwriter_end_element($writer);
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}elseif($dimension=='dynamic') {
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xmlwriter_start_element($writer,'data');
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OC_OCS::toxml($writer,$data,'comment');
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xmlwriter_end_element($writer);
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}
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xmlwriter_end_element($writer);
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xmlwriter_end_document( $writer );
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$txt.=xmlwriter_output_memory( $writer );
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unset($writer);
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return($txt);
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}
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}
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public static function toXml($writer,$data,$node) {
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foreach($data as $key => $value) {
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if (is_numeric($key)) {
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$key = $node;
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}
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if (is_array($value)){
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xmlwriter_start_element($writer,$key);
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OC_OCS::toxml($writer,$value,$node);
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xmlwriter_end_element($writer);
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}else{
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xmlwriter_write_element($writer,$key,$value);
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}
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}
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}
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/**
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* return the config data of this server
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* @param string $format
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* @return string xml/json
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*/
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private static function apiConfig($format) {
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$user=OC_OCS::checkpassword(false);
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$url=substr($_SERVER['HTTP_HOST'].$_SERVER['SCRIPT_NAME'],0,-11).'';
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$xml['version']='1.5';
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$xml['website']='ownCloud';
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$xml['host']=$_SERVER['HTTP_HOST'];
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$xml['contact']='';
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$xml['ssl']='false';
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echo(OC_OCS::generatexml($format,'ok',100,'',$xml,'config','',1));
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}
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/**
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* check if the provided login/apikey/password is valid
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* @param string $format
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* @param string $login
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* @param string $passwd
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* @return string xml/json
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*/
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private static function personCheck($format,$login,$passwd) {
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if($login<>''){
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if(OC_USER::login($login,$passwd)){
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$xml['person']['personid']=$login;
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echo(OC_OCS::generatexml($format,'ok',100,'',$xml,'person','check',2));
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}else{
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echo(OC_OCS::generatexml($format,'failed',102,'login not valid'));
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}
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}else{
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echo(OC_OCS::generatexml($format,'failed',101,'please specify all mandatory fields'));
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}
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}
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// ACTIVITY API #############################################
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/**
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* get my activities
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* @param string $format
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* @param string $page
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* @param string $pagesize
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* @return string xml/json
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*/
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private static function activityGet($format,$page,$pagesize) {
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global $CONFIG_DBTABLEPREFIX;
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$user=OC_OCS::checkpassword();
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$result = OC_DB::query("select count(*) as co from {$CONFIG_DBTABLEPREFIX}log");
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$entry=$result->fetchRow();
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$totalcount=$entry['co'];
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OC_DB::free_result($result);
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$result = OC_DB::select("select id,timestamp,user,type,message from {$CONFIG_DBTABLEPREFIX}log order by timestamp desc limit " . ($page*$pagesize) . ",$pagesize");
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$itemscount=count($result);
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$url='http://'.substr($_SERVER['HTTP_HOST'].$_SERVER['SCRIPT_NAME'],0,-11).'';
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$xml=array();
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foreach($result as $i=>$log) {
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$xml[$i]['id']=$log['id'];
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$xml[$i]['personid']=$log['user'];
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$xml[$i]['firstname']=$log['user'];
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$xml[$i]['lastname']='';
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$xml[$i]['profilepage']=$url;
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$pic=$url.'/img/owncloud-icon.png';
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$xml[$i]['avatarpic']=$pic;
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$xml[$i]['timestamp']=date('c',$log['timestamp']);
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$xml[$i]['type']=1;
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$xml[$i]['message']=OC_LOG::$TYPE[$log['type']].' '.strip_tags($log['message']);
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$xml[$i]['link']=$url;
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}
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$txt=OC_OCS::generatexml($format,'ok',100,'',$xml,'activity','full',2,$totalcount,$pagesize);
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echo($txt);
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}
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/**
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* submit a activity
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* @param string $format
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* @param string $message
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* @return string xml/json
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*/
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private static function activityPut($format,$message) {
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// not implemented in ownCloud
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$user=OC_OCS::checkpassword();
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echo(OC_OCS::generatexml($format,'ok',100,''));
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}
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// PRIVATEDATA API #############################################
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/**
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* get private data and create the xml for ocs
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* @param string $format
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* @param string $app
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* @param string $key
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* @return string xml/json
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*/
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private static function privateDataGet($format,$app="",$key="") {
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$user=OC_OCS::checkpassword();
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$result=OC_OCS::getData($user,$app,$key);
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$xml=array();
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foreach($result as $i=>$log) {
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$xml[$i]['key']=$log['key'];
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$xml[$i]['app']=$log['app'];
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$xml[$i]['value']=$log['value'];
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$xml[$i]['timestamp']=$log['timestamp'];
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}
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$txt=OC_OCS::generatexml($format, 'ok', 100, '', $xml, 'privatedata', 'full', 2, count($xml), 0);//TODO: replace 'privatedata' with 'attribute' once a new libattice has been released that works with it
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echo($txt);
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}
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/**
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* set private data referenced by $key to $value and generate the xml for ocs
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* @param string $format
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* @param string $app
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* @param string $key
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* @param string $value
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* @return string xml/json
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*/
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private static function privateDataSet($format, $app, $key, $value) {
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$user=OC_OCS::checkpassword();
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if(OC_OCS::setData($user,$app,$key,$value)){
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echo(OC_OCS::generatexml($format,'ok',100,''));
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}
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}
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/**
|
|
* delete private data referenced by $key and generate the xml for ocs
|
|
* @param string $format
|
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* @param string $app
|
|
* @param string $key
|
|
* @return string xml/json
|
|
*/
|
|
private static function privateDataDelete($format, $app, $key) {
|
|
if($key=="" or $app==""){
|
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return; //key and app are NOT optional here
|
|
}
|
|
$user=OC_OCS::checkpassword();
|
|
if(OC_OCS::deleteData($user,$app,$key)){
|
|
echo(OC_OCS::generatexml($format,'ok',100,''));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get private data
|
|
* @param string $user
|
|
* @param string $app
|
|
* @param string $key
|
|
* @param bool $like use LIKE instead of = when comparing keys
|
|
* @return array
|
|
*/
|
|
public static function getData($user,$app="",$key="",$like=false) {
|
|
global $CONFIG_DBTABLEPREFIX;
|
|
$user=OC_DB::escape($user);
|
|
$key=OC_DB::escape($key);
|
|
$app=OC_DB::escape($app);
|
|
$key="$user::$key";//ugly hack for the sake of keeping database scheme compatibiliy, needs to be replaced with a seperate user field the next time we break db compatibiliy
|
|
$compareFunction=($like)?'LIKE':'=';
|
|
|
|
if($app){
|
|
if (!trim($key)) {
|
|
$result = OC_DB::select("select app, `key`,value,`timestamp` from {$CONFIG_DBTABLEPREFIX}privatedata where app='$app' order by `timestamp` desc");
|
|
} else {
|
|
$result = OC_DB::select("select app, `key`,value,`timestamp` from {$CONFIG_DBTABLEPREFIX}privatedata where app='$app' and `key` $compareFunction '$key' order by `timestamp` desc");
|
|
}
|
|
}else{
|
|
if (!trim($key)) {
|
|
$result = OC_DB::select("select app, `key`,value,`timestamp` from {$CONFIG_DBTABLEPREFIX}privatedata order by `timestamp` desc");
|
|
} else {
|
|
$result = OC_DB::select("select app, `key`,value,`timestamp` from {$CONFIG_DBTABLEPREFIX}privatedata where `key` $compareFunction '$key' order by `timestamp` desc");
|
|
}
|
|
}
|
|
$result=self::trimKeys($result,$user);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* set private data referenced by $key to $value
|
|
* @param string $user
|
|
* @param string $app
|
|
* @param string $key
|
|
* @param string $value
|
|
* @return bool
|
|
*/
|
|
public static function setData($user, $app, $key, $value) {
|
|
global $CONFIG_DBTABLEPREFIX;
|
|
$app=OC_DB::escape($app);
|
|
$key=OC_DB::escape($key);
|
|
$user=OC_DB::escape($user);
|
|
$value=OC_DB::escape($value);
|
|
$key="$user::$key";//ugly hack for the sake of keeping database scheme compatibiliy
|
|
//TODO: prepared statements, locking tables, fancy stuff, error checking/handling
|
|
$result=OC_DB::select("select count(*) as co from {$CONFIG_DBTABLEPREFIX}privatedata where `key` = '$key' and app = '$app'");
|
|
$totalcount=$result[0]['co'];
|
|
if ($totalcount != 0) {
|
|
$result = OC_DB::query("update {$CONFIG_DBTABLEPREFIX}privatedata set value='$value', `timestamp` = now() where `key` = '$key' and app = '$app'");
|
|
} else {
|
|
$result = OC_DB::query("insert into {$CONFIG_DBTABLEPREFIX}privatedata(app, `key`, value, `timestamp`) values('$app', '$key', '$value', now())");
|
|
}
|
|
if (PEAR::isError($result)){
|
|
$entry='DB Error: "'.$result->getMessage().'"<br />';
|
|
error_log($entry);
|
|
return false;
|
|
}else{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* delete private data referenced by $key
|
|
* @param string $user
|
|
* @param string $app
|
|
* @param string $key
|
|
* @return string xml/json
|
|
*/
|
|
public static function deleteData($user, $app, $key) {
|
|
global $CONFIG_DBTABLEPREFIX;
|
|
$app=OC_DB::escape($app);
|
|
$key=OC_DB::escape($key);
|
|
$user=OC_DB::escape($user);
|
|
$key="$user::$key";//ugly hack for the sake of keeping database scheme compatibiliy
|
|
//TODO: prepared statements, locking tables, fancy stuff, error checking/handling
|
|
$result = OC_DB::query("delete from {$CONFIG_DBTABLEPREFIX}privatedata where `key` = '$key' and app = '$app'");
|
|
if (PEAR::isError($result)){
|
|
$entry='DB Error: "'.$result->getMessage().'"<br />';
|
|
error_log($entry);
|
|
return false;
|
|
}else{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
//trim username prefixes from $array
|
|
private static function trimKeys($array,$user){
|
|
$length=strlen("$user::");
|
|
foreach($array as &$item){
|
|
$item['key']=substr($item['key'],$length);
|
|
}
|
|
return $array;
|
|
}
|
|
}
|
|
|
|
?>
|