e2pdf / classes / model / e2pdf-adobesign.php

e2pdf-adobesign.php in E2Pdf – Export Pdf Tool for WordPress 1.02.02, at classes/model/e2pdf-adobesign.php

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1	<?php
2
3	/**
4	* E2pdf Adobe Sign Model
5	*
6	* @copyright Copyright 2017 https://e2pdf.com
7	* @license GPL v2
8	* @version 1
9	* @link https://e2pdf.com
10	* @since 1.02.00
11	*/
12	if (!defined('ABSPATH')) {
13	die('Access denied.');
14	}
15
16	class Model_E2pdf_AdobeSign extends Model_E2pdf_Model {
17
18	const DEFAULT_CURL_TIMEOUT = 300;
19
20	protected $oauth_url = 'https://secure.%s.echosign.com/';
21	protected $api = null;
22	protected $provider = array(
23	'api_url' => false,
24	'access_token' => false,
25	'refresh_token' => false,
26	'code' => false,
27	'client_id' => false,
28	'client_secret' => false
29	);
30
31	function __construct() {
32	parent::__construct();
33
34	$this->provider = array(
35	'api_url' => get_option('e2pdf_adobesign_api_access_point'),
36	'access_token' => get_transient('e2pdf_adobesign_access_token'),
37	'refresh_token' => get_option('e2pdf_adobesign_refresh_token'),
38	'code' => get_option('e2pdf_adobesign_code'),
39	'client_id' => get_option('e2pdf_adobesign_client_id'),
40	'client_secret' => get_option('e2pdf_adobesign_client_secret')
41	);
42
43	//refresh access_token
44	if (!$this->provider['access_token'] &&
45	$this->provider['api_url'] &&
46	$this->provider['client_id'] &&
47	$this->provider['client_secret'] &&
48	$this->provider['refresh_token']
49	) {
50	$this->set(array(
51	'action' => 'oauth/refresh',
52	'data' => array(
53	'grant_type' => 'refresh_token',
54	'client_id' => $this->provider['client_id'],
55	'client_secret' => $this->provider['client_secret'],
56	'refresh_token' => $this->provider['refresh_token'],
57	),
58	));
59	if ($access_token = $this->request('access_token')) {
60	set_transient('e2pdf_adobesign_access_token', $access_token, 1800);
61	set_transient('e2pdf_adobesign_refresh_token', 'updated', 2592000);
62	$this->provider['access_token'] = $access_token;
63	}
64	$this->flush();
65	} else {
66	set_transient('e2pdf_adobesign_refresh_token', 'unavailable', 2592000);
67	}
68	}
69
70	/**
71	* Request code for refresh_token request
72	*
73	* @return array
74	*/
75	public function request_code() {
76	$response = array();
77	if (!get_option('e2pdf_adobesign_region') && !$this->provider['client_id'] && !$this->provider['client_secret']) {
78	set_transient('e2pdf_adobesign_access_token', false);
79	set_transient('e2pdf_adobesign_refresh_token', 'unavailable', 2592000);
80	update_option('e2pdf_adobesign_code', false);
81	update_option('e2pdf_adobesign_api_access_point', false);
82	update_option('e2pdf_adobesign_refresh_token', false);
83	} elseif (!get_option('e2pdf_adobesign_region')) {
84	$response['error'] = __('Region is required', 'e2pdf');
85	} elseif (!$this->provider['client_id']) {
86	$response['error'] = __('Cliend ID is required', 'e2pdf');
87	} elseif (!$this->provider['client_secret']) {
88	$response['error'] = __('Client Secret is required', 'e2pdf');
89	} else {
90	$this->oauth_url = sprintf($this->oauth_url, get_option('e2pdf_adobesign_region'));
91
92	$location = $this->oauth_url . "public/oauth";
93	$scopes = array();
94	$options = Model_E2pdf_Options::get_options(false, array('adobesign_group'));
95
96	foreach ($options as $group_key => $group) {
97	foreach ($group['options'] as $option_key => $option_value) {
98	if (substr($option_value['key'], 0, 21) === "e2pdf_adobesign_scope" && $option_value['value']) {
99	$scopes[] = substr($option_value['key'], 22) . ":" . $option_value['value'];
100	}
101	}
102	}
103	$data = array(
104	'redirect_uri' => urlencode($this->helper->get_url(array('page' => 'e2pdf-settings', 'action' => 'adobesign'))),
105	'response_type' => 'code',
106	'client_id' => get_option('e2pdf_adobesign_client_id'),
107	'scope' => implode("+", $scopes),
108	);
109	$location .= "?" . urldecode(http_build_query($data));
110	$response['redirect'] = $location;
111	}
112	return $response;
113	}
114
115	/**
116	* Request refresh_token request
117	*
118	* @return array
119	*/
120	public function request_refresh_token() {
121
122	$response = array();
123	if (!$this->provider['api_url']) {
124	$response['error'] = __('API Url is not set or Incorrect', 'e2pdf');
125	} elseif (!$this->provider['code']) {
126	$response['error'] = __('Code is not set or Incorrect', 'e2pdf');
127	} elseif (!$this->provider['client_id']) {
128	$response['error'] = __('Cliend ID is required', 'e2pdf');
129	} elseif (!$this->provider['client_secret']) {
130	$response['error'] = __('Client Secret is required', 'e2pdf');
131	} else {
132
133	$this->set(array(
134	'action' => 'oauth/token',
135	'data' => array(
136	'grant_type' => 'authorization_code',
137	'redirect_uri' => $this->helper->get_url(array('page' => 'e2pdf-settings', 'action' => 'adobesign')),
138	'client_id' => $this->provider['client_id'],
139	'client_secret' => $this->provider['client_secret'],
140	'code' => $this->provider['code'],
141	),
142	));
143
144	$request = $this->request();
145	$this->flush();
146	if (isset($request['access_token']) && isset($request['refresh_token'])) {
147	set_transient('e2pdf_adobesign_access_token', $request['access_token'], 1800);
148	set_transient('e2pdf_adobesign_refresh_token', 'updated', 2592000);
149	update_option('e2pdf_adobesign_refresh_token', $request['refresh_token']);
150	} elseif (isset($request['error'])) {
151	$response['error'] = $request['error'];
152	} else {
153	$response['error'] = $response['error'] = __("Something went wrong!", "e2pdf");
154	}
155	}
156	return $response;
157	}
158
159	/**
160	* Request to Adobe Sign API
161	*
162	* @return array
163	*/
164	public function request($key = false) {
165	if ($this->api->action && $this->provider['api_url']) {
166
167	$response = array();
168	$headers = array();
169	$data = array();
170	$json_data = "[]";
171
172	if (!empty($this->api->data)) {
173	$data = array_merge($data, $this->api->data);
174	}
175
176	if ($this->api->action != 'oauth/refresh' && $this->api->action != 'oauth/token') {
177	if ($this->provider['access_token']) {
178	$headers[] = 'Authorization: Bearear';
179	$headers[] = 'Access-Token: ' . $this->provider['access_token'];
180	} else {
181	$response['error'] = __("Access Token is not set or Incorrect", "e2pdf");
182	return $response;
183	}
184	}
185
186	if ($this->api->action == 'oauth/refresh' \|\| $this->api->action == 'oauth/token') {
187	$headers[] = 'Content-Type: application/x-www-form-urlencoded';
188	} elseif ($this->api->action == 'api/rest/v5/transientDocuments') {
189	$headers[] = 'Content-Type: multipart/form-data';
190	} else {
191	$json_data = json_encode($data);
192	$headers[] = 'Content-Type: application/json';
193	$headers[] = 'Content-Length: ' . strlen($json_data);
194	}
195
196	$request_url = $this->provider['api_url'] . $this->api->action;
197	$e2pdf_connection_timeout = get_option('e2pdf_connection_timeout') === false ? self::DEFAULT_CURL_TIMEOUT : get_option('e2pdf_connection_timeout');
198	$ch = curl_init($request_url);
199	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
200	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
201	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
202	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
203	if (!ini_get('safe_mode') && !ini_get('open_basedir')) {
204	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
205	}
206	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $e2pdf_connection_timeout);
207
208	if ($this->api->method) {
209	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->api->method);
210	}
211
212	if ($this->api->action == 'oauth/refresh' \|\| $this->api->action == 'oauth/token') {
213	curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
214	} elseif ($this->api->action == 'api/rest/v5/transientDocuments') {
215	curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
216	} else {
217	curl_setopt($ch, CURLOPT_POSTFIELDS, $json_data);
218	}
219
220	$json = curl_exec($ch);
221	$curl_errno = curl_errno($ch);
222	$curl_error = curl_error($ch);
223	curl_close($ch);
224
225	if ($curl_errno > 0) {
226	$response['error'] = "[{$curl_errno}] {$curl_error}";
227	} else {
228	$result = json_decode($json, true);
229	$response = $result;
230	if (empty($response)) {
231	$response['error'] = __("Something went wrong!", "e2pdf");
232	}
233	}
234
235	if ($key) {
236	if (isset($response[$key])) {
237	return $response[$key];
238	} else {
239	return false;
240	}
241	} else {
242	return $response;
243	}
244	}
245
246	return false;
247	}
248
249	/**
250	* Remove API Request options
251	*/
252	public function flush() {
253	$this->api = null;
254	}
255
256	/**
257	* Set options for API Request
258	*
259	* @param string $key - Key
260	* @param mixed $value - Value
261	*/
262	public function set($key, $value = false) {
263	if (!$this->api) {
264	$this->api = new stdClass();
265	}
266	if (is_array($key)) {
267	foreach ($key as $attr => $value) {
268	$this->api->$attr = $value;
269	}
270	} else {
271	$this->api->$key = $value;
272	}
273	}
274
275	}
276