instapage / models / InstapageCmsPluginServicesModel.php

InstapageCmsPluginServicesModel.php in Instapage Plugin trunk, at models/InstapageCmsPluginServicesModel.php

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1	<?php
2
3	/**
4	* Class responsible for managing the landing pages.
5	*/
6	class InstapageCmsPluginServicesModel {
7
8	/**
9	* @var object Class instance.
10	*/
11	private static $servicesModel = null;
12
13	/**
14	* Gets the class instance.
15	*
16	* @return object Class instance.
17	*/
18	public static function getInstance() {
19	if (self::$servicesModel === null) {
20	self::$servicesModel = new InstapageCmsPluginServicesModel();
21	}
22
23	return self::$servicesModel;
24	}
25
26	/**
27	* Checks if current request should be processed by a proxy service.
28	*
29	* @return boolean
30	*/
31	public function isServicesRequest() {
32	if (strpos($_SERVER['REQUEST_URI'], 'instapage-proxy-services') !== false) {
33	InstapageCmsPluginHelper::writeDiagnostics(
34	InstapageCmsPluginHelper::filterInput(INPUT_SERVER, 'REQUEST_URI'),
35	'Proxy services URL'
36	);
37
38	return true;
39	}
40
41	return false;
42	}
43
44	/**
45	* Strips the slashes.
46	*
47	* @param string &$$value Value to strip slashes from.
48	*/
49	public function stripSlashesGpc(&$value) {
50	$value = stripslashes($value);
51	}
52
53	/**
54	* Processes the proxy request.
55	*/
56	public function processProxyServices() {
57	$api = InstapageCmsPluginAPIModel::getInstance();
58	$url = filter_input(INPUT_GET, 'url');
59
60	if (strpos($url, 'ajax/pageserver/email') === false) {
61	throw new Exception('Unsupported endpoint: ' . $url);
62	}
63
64	$url = InstapageCmsPluginConnector::getURLWithSelectedProtocol(INSTAPAGE_PROXY_ENDPOINT . $url);
65	$postData = filter_input_array(INPUT_POST) ?: [];
66	array_walk_recursive($postData, array($this, 'stripSlashesGpc'));
67
68	if (!empty($postData)) {
69	$postData['user_ip'] = InstapageCmsPluginHelper::filterInput(INPUT_SERVER, 'REMOTE_ADDR');
70	}
71
72	$data = $postData;
73	$data['ajax'] = 1;
74	$response = $api->remotePost($url, $data);
75
76	if (isset($response['response']['code']) && $response['response']['code'] !== 200) {
77	$this->disableCrossOriginProxy();
78	$matches = array();
79	$pattern = '/email\/(\d*)/';
80	preg_match($pattern, $url, $matches);
81	}
82
83	InstapageCmsPluginHelper::writeDiagnostics($url, 'Proxy services URL');
84	InstapageCmsPluginHelper::writeDiagnostics($data, 'Proxy data');
85	InstapageCmsPluginHelper::writeDiagnostics($response, 'Proxy response');
86
87	$status = isset($response->status) ? $response->status : false;
88	$responseCode = isset($response['response']['code']) ? $response['response']['code'] : 200;
89
90	if ($status === 'ERROR') {
91	$errorMessage = isset($response->message) ? $response->message : false;
92
93	if (!empty($errorMessage)) {
94	throw new Exception($errorMessage);
95	}
96	else {
97	throw new Exception('500 Internal Server Error');
98	}
99	}
100
101	ob_start();
102	ob_end_clean();
103	header('Content-Type: text/json; charset=UTF-8');
104	echo InstapageCmsPluginConnector::escapeHTML(trim(isset($response['body']) ? $response['body'] : ''));
105	status_header($responseCode);
106
107	exit;
108	}
109
110	/**
111	* Disables the Cross Origin Proxy option in plugin's settings.
112	*/
113	private function disableCrossOriginProxy() {
114	$options = InstapageCmsPluginHelper::getOptions();
115	$options->config->crossOrigin = 0;
116	InstapageCmsPluginHelper::updateOptions($options);
117	}
118	}
119