e2pdf / classes / model / e2pdf-adobesign.php

e2pdf-adobesign.php in E2Pdf – Export Pdf Tool for WordPress 1.03.07, 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	protected $oauth_url = 'https://secure.%s.echosign.com/';
19	protected $api = null;
20	protected $provider = array(
21	'api_url' => false,
22	'access_token' => false,
23	'refresh_token' => false,
24	'code' => false,
25	'client_id' => false,
26	'client_secret' => false
27	);
28
29	function __construct() {
30	parent::__construct();
31
32	$this->provider = array(
33	'api_url' => get_option('e2pdf_adobesign_api_access_point'),
34	'access_token' => get_transient('e2pdf_adobesign_access_token'),
35	'refresh_token' => get_option('e2pdf_adobesign_refresh_token'),
36	'code' => get_option('e2pdf_adobesign_code'),
37	'client_id' => get_option('e2pdf_adobesign_client_id'),
38	'client_secret' => get_option('e2pdf_adobesign_client_secret')
39	);
40
41	//refresh access_token
42	if (!$this->provider['access_token'] &&
43	$this->provider['api_url'] &&
44	$this->provider['client_id'] &&
45	$this->provider['client_secret'] &&
46	$this->provider['refresh_token']
47	) {
48	$this->set(array(
49	'action' => 'oauth/refresh',
50	'data' => array(
51	'grant_type' => 'refresh_token',
52	'client_id' => $this->provider['client_id'],
53	'client_secret' => $this->provider['client_secret'],
54	'refresh_token' => $this->provider['refresh_token'],
55	),
56	));
57	if ($access_token = $this->request('access_token')) {
58	set_transient('e2pdf_adobesign_access_token', $access_token, 1800);
59	set_transient('e2pdf_adobesign_refresh_token', 'updated', 2592000);
60	$this->provider['access_token'] = $access_token;
61	}
62	$this->flush();
63	} else {
64	set_transient('e2pdf_adobesign_refresh_token', 'unavailable', 2592000);
65	}
66	}
67
68	/**
69	* Request code for refresh_token request
70	*
71	* @return array
72	*/
73	public function request_code() {
74	$response = array();
75	if (!get_option('e2pdf_adobesign_region') && !$this->provider['client_id'] && !$this->provider['client_secret']) {
76	set_transient('e2pdf_adobesign_access_token', false);
77	set_transient('e2pdf_adobesign_refresh_token', 'unavailable', 2592000);
78	update_option('e2pdf_adobesign_code', false);
79	update_option('e2pdf_adobesign_api_access_point', false);
80	update_option('e2pdf_adobesign_refresh_token', false);
81	} elseif (!get_option('e2pdf_adobesign_region')) {
82	$response['error'] = __('Region is required', 'e2pdf');
83	} elseif (!$this->provider['client_id']) {
84	$response['error'] = __('Cliend ID is required', 'e2pdf');
85	} elseif (!$this->provider['client_secret']) {
86	$response['error'] = __('Client Secret is required', 'e2pdf');
87	} else {
88	$this->oauth_url = sprintf($this->oauth_url, get_option('e2pdf_adobesign_region'));
89
90	$location = $this->oauth_url . "public/oauth";
91	$scopes = array();
92	$options = Model_E2pdf_Options::get_options(false, array('adobesign_group'));
93
94	foreach ($options as $group_key => $group) {
95	foreach ($group['options'] as $option_key => $option_value) {
96	if (substr($option_value['key'], 0, 21) === "e2pdf_adobesign_scope" && $option_value['value']) {
97	$scopes[] = substr($option_value['key'], 22) . ":" . $option_value['value'];
98	}
99	}
100	}
101	$data = array(
102	'redirect_uri' => urlencode($this->helper->get_url(array('page' => 'e2pdf-settings', 'action' => 'adobesign'))),
103	'response_type' => 'code',
104	'client_id' => get_option('e2pdf_adobesign_client_id'),
105	'scope' => implode("+", $scopes),
106	);
107	$location .= "?" . urldecode(http_build_query($data));
108	$response['redirect'] = $location;
109	}
110	return $response;
111	}
112
113	/**
114	* Request refresh_token request
115	*
116	* @return array
117	*/
118	public function request_refresh_token() {
119
120	$response = array();
121	if (!$this->provider['api_url']) {
122	$response['error'] = __('API Url is not set or Incorrect', 'e2pdf');
123	} elseif (!$this->provider['code']) {
124	$response['error'] = __('Code is not set or Incorrect', 'e2pdf');
125	} elseif (!$this->provider['client_id']) {
126	$response['error'] = __('Cliend ID is required', 'e2pdf');
127	} elseif (!$this->provider['client_secret']) {
128	$response['error'] = __('Client Secret is required', 'e2pdf');
129	} else {
130
131	$this->set(array(
132	'action' => 'oauth/token',
133	'data' => array(
134	'grant_type' => 'authorization_code',
135	'redirect_uri' => $this->helper->get_url(array('page' => 'e2pdf-settings', 'action' => 'adobesign')),
136	'client_id' => $this->provider['client_id'],
137	'client_secret' => $this->provider['client_secret'],
138	'code' => $this->provider['code'],
139	),
140	));
141
142	$request = $this->request();
143	$this->flush();
144	if (isset($request['access_token']) && isset($request['refresh_token'])) {
145	set_transient('e2pdf_adobesign_access_token', $request['access_token'], 1800);
146	set_transient('e2pdf_adobesign_refresh_token', 'updated', 2592000);
147	update_option('e2pdf_adobesign_refresh_token', $request['refresh_token']);
148	} elseif (isset($request['error'])) {
149	$response['error'] = $request['error'];
150	} else {
151	$response['error'] = $response['error'] = __("Something went wrong!", "e2pdf");
152	}
153	}
154	return $response;
155	}
156
157	/**
158	* Request to Adobe Sign API
159	*
160	* @return array
161	*/
162	public function request($key = false) {
163	if ($this->api->action && $this->provider['api_url']) {
164
165	$response = array();
166	$headers = array();
167	$data = array();
168	$json_data = "[]";
169
170	if (!empty($this->api->data)) {
171	$data = array_merge($data, $this->api->data);
172	}
173
174	if ($this->api->action != 'oauth/refresh' && $this->api->action != 'oauth/token') {
175	if ($this->provider['access_token']) {
176	$headers[] = 'Authorization: Bearear';
177	$headers[] = 'Access-Token: ' . $this->provider['access_token'];
178	} else {
179	$response['error'] = __("Access Token is not set or Incorrect", "e2pdf");
180	return $response;
181	}
182	}
183
184	if ($this->api->action == 'oauth/refresh' \|\| $this->api->action == 'oauth/token') {
185	$headers[] = 'Content-Type: application/x-www-form-urlencoded';
186	} elseif ($this->api->action == 'api/rest/v5/transientDocuments') {
187	$headers[] = 'Content-Type: multipart/form-data';
188	} else {
189	$json_data = json_encode($data);
190	$headers[] = 'Content-Type: application/json';
191	$headers[] = 'Content-Length: ' . strlen($json_data);
192	}
193
194	$request_url = $this->provider['api_url'] . $this->api->action;
195	$timeout = get_option('e2pdf_connection_timeout') === false ? 300 : get_option('e2pdf_connection_timeout');
196	$ch = curl_init($request_url);
197	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
198	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
199	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
200	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
201	if (!ini_get('safe_mode') && !ini_get('open_basedir')) {
202	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
203	}
204	curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
205
206	if ($this->api->method) {
207	curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->api->method);
208	}
209
210	if ($this->api->action == 'oauth/refresh' \|\| $this->api->action == 'oauth/token') {
211	curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
212	} elseif ($this->api->action == 'api/rest/v5/transientDocuments') {
213	curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
214	} else {
215	curl_setopt($ch, CURLOPT_POSTFIELDS, $json_data);
216	}
217
218	$json = curl_exec($ch);
219	$curl_errno = curl_errno($ch);
220	$curl_error = curl_error($ch);
221	curl_close($ch);
222
223	if ($curl_errno > 0) {
224	$response['error'] = "[{$curl_errno}] {$curl_error}";
225	} else {
226	$result = json_decode($json, true);
227	$response = $result;
228	if (empty($response)) {
229	$response['error'] = __("Something went wrong!", "e2pdf");
230	}
231	}
232
233	if ($key) {
234	if (isset($response[$key])) {
235	return $response[$key];
236	} else {
237	return false;
238	}
239	} else {
240	return $response;
241	}
242	}
243
244	return false;
245	}
246
247	/**
248	* Remove API Request options
249	*/
250	public function flush() {
251	$this->api = null;
252	}
253
254	/**
255	* Set options for API Request
256	*
257	* @param string $key - Key
258	* @param mixed $value - Value
259	*/
260	public function set($key, $value = false) {
261	if (!$this->api) {
262	$this->api = new stdClass();
263	}
264	if (is_array($key)) {
265	foreach ($key as $attr => $value) {
266	$this->api->$attr = $value;
267	}
268	} else {
269	$this->api->$key = $value;
270	}
271	}
272
273	}
274