ajaxhandler.php
4.48 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
<?php
class ajaxHandler{
public $ret=NULL;
public $req=NULL;
public $version=NULL;
public $auth=NULL;
public $request=NULL;
public $kt=NULL;
public $authenticator=NULL;
public $noAuthRequireList=array();
public function __construct(&$ret=NULL,&$kt,$noAuthRequests=''){
// set a local copy of the json request wrapper
$noAuthRequests=is_array($noAuthRequests)?$noAuthRequests:split(',',(string)$noAuthRequests);
$this->registerNoAuthRequest($noAuthRequests);
$this->req=new jsonWrapper(isset($_GET['request'])?$_GET['request']:(isset($_POST['request'])?$_POST['request']:''));
$this->auth=$this->structArray('user,pass,passhash,appType,session,token,version',$this->req->jsonArray['auth']);
$this->request=$this->structArray('service,function,parameters',$this->req->jsonArray['request']);
$add_params=array_merge($_GET,$_POST);
unset($add_params['request'],$add_params['datasource']);
$this->request['parameters']=array_merge($this->request['parameters'],$add_params);
// set the response object
if(get_class($ret)=='jsonResponseObject'){
$this->ret=&$ret;
}else{
$this->ret=new jsonResponseObject();
}
$this->ret->setRequest($this->req->jsonArray);
$this->ret->setTitle($this->request['service'].'::'.$this->request['function']);
if(get_class($kt)=='KTAPI'){
$this->kt=&$kt;
}else{
$this->ret->addError('KnowledgeTree Object not Received in '.__CLASS__.' constructor. Quitting.');
return $this->render();
}
// Prepar
$this->loadService('auth');
$this->authenticator=new auth($this->ret,$this->kt,$this->request,$this->auth);
//Make sure a token exists before continuing
if(!$this->verifyToken())return $this->render();
if(!$this->verifySession()){
$this->doLogin();
$isAuthRequired=$this->isNoAuthRequiredRequest();
$isAuthenticated=$this->isAuthenticated();
if(!$isAuthRequired && !$isAuthenticated)return $this->render();
}
$this->dispatch();
return $this->render();
}
private function structArray($structString=NULL,$arr=NULL){
$struct=array_flip(split(',',(string)$structString));
return array_merge($struct,is_array($arr)?$arr:array());
}
public function dispatch(){
$request=$this->request;
if($request['auth']){
$service=$this->authenticator;
}else{
$this->loadService($request['service']);
$service=new $request['service']($this->ret,$this->kt,$this->request,$this->auth);
}
$this->ret->setdebug('dispatch_request','The service class loaded');
if(method_exists($service,$request['function'])){
$this->ret->setdebug('dispatch_execution','The service method was found. Executing');
$service->$request['function']($request['parameters']);
}else{
$this->ret->addError("Service {$request['service']} does not contain the method: {$request['function']}");
return false;
}
}
public function loadService($serviceName=NULL){
$version=$this->getVersion();
if(!class_exists($serviceName)){
if(file_exists('services/'.$version.'/'.$serviceName.'.php')){
require_once('services/'.$version.'/'.$serviceName.'.php');
return true;
}else{
throw new Exception('Service could not be found: '.$serviceName);
return false;
}
}
}
protected function verifyToken(){
$token=isset($this->auth['token'])?$this->auth['token']:NULL;
if(!$token){
$token=md5(rand()*rand());
$this->ret->setStatus('random_token',$token);
return false;
}
return true;
}
protected function getVersion(){
if(!$this->version)$this->version=$this->req->getVersion();
return $this->version;
}
protected function verifySession(){
return $this->authenticator->pickup_session();
}
protected function isAuthenticated(){
return $this->authenticator->pickup_session();
}
protected function doLogin(){
if($this->authenticator->login()){
return true;
}else{
$this->ret->addError('Unsuccesful Login');
return false;
}
}
public function render(){
echo $this->ret->getJson();
return true;
}
public function registerNoAuthRequest($requestString=''){
if($requestString){
if(is_array($requestString)){
foreach ($requestString as $rString){
$rString=strtolower((string)$rString);
$this->noAuthRequireList[$rString]=$rString;
}
}else{
$requestString=strtolower((string)$requestString);
$this->noAuthRequireList[$requestString]=(string)$requestString;
}
}
}
public function isNoAuthRequiredRequest(){
$req=$this->request;
$reqString=strtolower("{$req['service']}.{$req['function']}");
return in_array($reqString,$this->noAuthRequireList);
}
}
?>