json-rpc-plugin/IJR_IntrospectionServer.php at master · mwolf/json-rpc-plugin · GitHub

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
<?php
/**
 * Description of IJR_InspectionServer
 *
 * @author  Andreas Gohr <andi@splitbrain.org>
 * @author Magnus Wolf <mwolf2706@googlemail.com>
 */
require_once('./IJR_Server.php');
require_once('./IJR_CallbackDefines.php');

class IJR_IntrospectionServer extends IJR_Server {
    private $signatures;
    private $help;
    private $callbackMethods;

    protected function IJR_IntrospectionServer() {
        $this->setCallbacks();
        $this->setCapabilities();
        $this->capabilities['introspection'] = array(
            'specUrl' => 'http://xmlrpc.usefulinc.com/doc/reserved.html',
            'specVersion' => 1
        );
        $callbackDef = new IJR_CallbackDefines();
        $this->callbackMethods = $callbackDef->getSystemMethods();

        foreach($this->callbackMethods as $key)
        {
            $this->addCallback($key['method'], $key['callback'], $key['args'], $key['help']);
        }
    }

    protected function addCallback($method, $callback, $args, $help) {
        $this->callbacks[$method] = $callback;
        $this->signatures[$method] = $args;
        $this->help[$method] = $help;
    }

    protected function call($methodname, $args) {
        if ($args && !is_array($args))
        {
            $args = array($args);
        }
        if (!$this->hasMethod($methodname))
        {
            return new IJR_Error(-32601, 'server error. requested method "'.$methodname.'" not specified.');
        }

        $method = $this->callbacks[$methodname];
        $signature = $this->signatures[$methodname];
        $returnType = array_shift($signature);

        if (count($args) < count($signature))
        {
            return new IJR_Error(-32602, 'server error. missing method parameters');
        }
        // Check the argument types
        $ok = true;
        $argsbackup = $args;

        for ($i = 0, $j = count($args); $i < $j; $i++) {

            $arg = array_shift($args);
            $type = array_shift($signature);

            switch ($type) {
                case 'int':
                case 'i4':
                    if (is_array($arg) || !is_int($arg)) {
                        $ok = false;
                    }
                    break;
                case 'base64':
                case 'string':
                    if (!is_string($arg)) {
                        $ok = false;
                    }
                    break;
                case 'boolean':
                    if ($arg !== false && $arg !== true) {
                        $ok = false;
                    }
                    break;
                case 'float':
                case 'double':
                    if (!is_float($arg)) {
                        $ok = false;
                    }
                    break;
                case 'date':
                case 'dateTime.iso8601':
                    if (!is_a($arg, 'IJR_Date')) {
                        $ok = false;
                    }
                    break;
            }
            if (!$ok) {
                return new IJR_Error(-32602, 'server error. invalid method parameters');
            }
        }
        return parent::call($methodname, $argsbackup);
    }

    private function methodSignature($method) {
        if (!$this->hasMethod($method)) {
            return new IJR_Error(-32601, 'server error. requested method "'.$method.'" not specified.');
        }
        // We should be returning an array of types
        $types = $this->signatures[$method];
        $return = array();
        foreach ($types as $type) {
            switch ($type) {
                case 'string':
                    $return[] = 'string';
                    break;
                case 'int':
                case 'i4':
                    $return[] = 42;
                    break;
                case 'double':
                    $return[] = 3.1415;
                    break;
                case 'dateTime.iso8601':
                    $return[] = new IJR_Date(time());
                    break;
                case 'boolean':
                    $return[] = true;
                    break;
                case 'base64':
                    $return[] = new IJR_Base64('base64');
                    break;
                case 'array':
                    $return[] = array('array');
                    break;
                case 'struct':
                    $return[] = array('struct' => 'struct');
                    break;
            }
        }
        return $return;
    }

    function methodHelp($method) {
        return $this->help[$method];
    }
}
?>