-
Notifications
You must be signed in to change notification settings - Fork 0
/
Eventbrite.php
347 lines (312 loc) · 17.6 KB
/
Eventbrite.php
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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
<?php
class Eventbrite {
/**
* Eventbrite API endpoint
*/
var $api_endpoint = "https://www.eventbrite.com/json/";
/**
* Eventbrite API key (REQUIRED)
* http://www.eventbrite.com/api/key/
* Eventbrite user_key (OPTIONAL, only needed for reading/writing private user data)
* http://www.eventbrite.com/userkeyapi
*
* Alternate authorization parameters (instead of user_key):
* Eventbrite user email
* Eventbrite user password
*/
function Eventbrite( $tokens = null, $user = null, $password = null ) {
$this->api_url = parse_url($this->api_endpoint);
$this->auth_tokens = array();
if(is_array($tokens)){
if(array_key_exists('access_code', $tokens)){
$this->auth_tokens = $this->oauth_handshake( $tokens );
}else{
$this->auth_tokens = $tokens;
}
}else{
$this->auth_tokens['app_key'] = $tokens;
if( $password ){
$this->auth_tokens['user'] = $user;
$this->auth_tokens['password'] = $password;
}
else {
$this->auth_tokens['user_key'] = $user;
}
}
}
function oauth_handshake( $tokens ){
$params = array(
'grant_type'=>'authorization_code',
'client_id'=> $tokens['app_key'],
'client_secret'=> $tokens['client_secret'],
'code'=> $tokens['access_code'] );
$request_url = $this->api_url['scheme'] . "://" . $this->api_url['host'] . '/oauth/token';
// TODO: Replace the cURL code with something a bit more modern -
//$context = stream_context_create(array('http' => array(
// 'method' => 'POST',
// 'header' => "Content-type: application/x-www-form-urlencoded\r\n",
// 'content' => http_build_query($params))));
//$json_data = file_get_contents( $request_url, false, $context );
// CURL-POST implementation -
// WARNING: This code may require you to install the php5-curl package
$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
curl_setopt($ch, CURLOPT_URL, $request_url);
curl_setopt($ch, CURLOPT_HEADER, FALSE);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$json_data = curl_exec($ch);
$resp_info = curl_getinfo($ch);
curl_close($ch);
$response = get_object_vars(json_decode($json_data));
if( !array_key_exists('access_token', $response) || array_key_exists('error', $response) ){
throw new Exception( $response['error_description'] );
}
return array_merge($tokens, $response);
}
// For information about available API methods, see: http://developer.eventbrite.com/doc/
function __call( $method, $args ) {
// Unpack our arguments
if( is_array( $args ) && array_key_exists( 0, $args ) && is_array( $args[0]) ){
$params = $args[0];
}else{
$params = array();
}
// Add authentication tokens to querystring
if(!isset($this->auth_tokens['access_token'])){
$params = array_merge($params, $this->auth_tokens);
}
// Build our request url, urlencode querystring params
$request_url = $this->api_url['scheme']."://".$this->api_url['host'].$this->api_url['path'].$method.'?'.http_build_query( $params,'','&');
// Call the API
if(!isset($this->auth_tokens['access_token'])){
$resp = file_get_contents( $request_url );
}else{
$options = array(
'http'=>array( 'method'=> 'GET',
'header'=> "Authorization: Bearer " . $this->auth_tokens['access_token'])
);
$resp = file_get_contents( $request_url, false, stream_context_create($options));
}
// parse our response
if($resp){
$resp = json_decode( $resp );
if( isset( $resp->error ) && isset($resp->error->error_message) ){
//throw new Exception( $resp->error->error_message );
}
}
return $resp;
}
/*
* Helpers:
*/
public static function OAuthLogin($auth_tokens, $get_token='getAccessToken', $save_token='saveAccessToken', $delete_token='deleteAccessToken'){
$user = false;
$response = array();
# Attempt to authenticate this user using an access_token, if available
if(!isset($auth_tokens['access_token'])){
if(is_callable($get_token)){
$auth_tokens['access_token'] = $get_token();
}elseif(is_callable(array('self',$get_token))){
$auth_tokens['access_token'] = self::$get_token();
}
}
if( isset($auth_tokens['access_token']) ){
try{
// Example using an access_token to initialize the API client:
$eb = new Eventbrite(array('access_token' => $auth_tokens['access_token']));
$user = $eb->user_get()->user;
}catch(Exception $e){
$user = false;
// This token may no longer be valid
// refresh it, or clear it
$response['login_error'] = $e->getMessage();
if(is_callable($delete_token)){
$delete_token( $auth_tokens['access_token'] );
}elseif(is_callable(array('self',$delete_token))){
self::$delete_token( $auth_tokens['access_token'] );
}
}
}
# We do not have a valid access token for this user so far
if( $user == false ){
# This user is not yet authenticated -
# it is their first visit,
# or they are returning with an access_code that we will exchange for an access_token,
# or they were redirected here after logout
if( isset($auth_tokens['access_code']) ){
# This user has just authenticated, get their access token and store it
try{
$eb = new Eventbrite($auth_tokens );
$response['access_token'] = $eb->auth_tokens['access_token'];
// save this access_token for future use!
if(is_callable($save_token)){
$save_token( $response['access_token'] );
}elseif(is_callable(array('self',$save_token))){
self::$save_token( $response['access_token'] );
}
header('Location: ' . $_SERVER['PHP_SELF'] );
exit;
}catch (Exception $e){
$response['login_error'] = $e->getMessage();
}
}else if( isset($auth_tokens['error_message'] )){
if($auth_tokens['error_message'] == 'access_denied'){
$response['login_error'] = "Account access denied.";
}else{
$response['login_error'] = $auth_tokens['error_message'];
}
}
}else if(is_object($user)){
$response['user_email'] = $user->email;
$response['user_name'] = $user->first_name . ' ' . $user->last_name;
}
return $response;
}
public static function widgetHTML( $params ){
// Replace this example with something that works with your Application's templating engine
$html = "<div class='eb_login_widget'> <h2>Eventbrite Account Access</h2>";
if( isset($params['user_name']) && isset($params['user_email']) && isset($params['logout_link']) ){
$html .= "<div><h3>Welcome Back!</h3>";
$html .= "<p>You are logged in as:<br/>{$params['user_name']}<br/><i>({$params['user_email']})</i></p>";
$html .= "<p><a class='button' href='{$params['logout_link']}'>Logout</a></p></div>";
}elseif( isset($params['oauth_link']) ){
if(isset($params['login_error'])){
$html .= "<p class='error'>{$params['login_error']}</p>";
}
$html .= "<p><a class='button' href='{$params['oauth_link']}'>Login with Eventbrite</a></p></div>";
}else{
$html .= "<div><h2>Eventbrite widgetHTML template example fail :(</h2></div>";
}
$html .= "</div>";
return $html;
}
public static function oauthNextStep( $key ) {
return 'https://www.eventbrite.com/oauth/authorize?response_type=code&client_id='.$key;
}
public static function eventList($evnts= array(), $callback='eventListRow', $options=false) {
$html='<div class="eb_event_list">';
if( isset($evnts->events)){
foreach( $evnts->events as $evnt ){
if( isset($evnt->event ) ){
if(is_callable($callback)){
if($options){
$html .= $callback($evnt->event, $options);
}else{
$html .= $callback($evnt->event);
}
}else if(is_callable( array('self', $callback))){
if($options){
$html .= self::$callback($evnt->event, $options);
}else{
$html .= self::$callback($evnt->event);
}
}
}
}
}else{
$html .= "No events were found at this time.";
}
return $html . "</div>";
}
public static function getAccessToken( ) {
if(isset($_SESSION['EB_OAUTH_ACCESS_TOKEN'])){
return $_SESSION['EB_OAUTH_ACCESS_TOKEN'];
}else{
return null;
}
}
public static function saveAccessToken( $access_token ) {
// this function should save the existing user's access_token.
$_SESSION['EB_OAUTH_ACCESS_TOKEN'] = $access_token;
}
public static function deleteAccessToken( ) {
// this function should remove the existing user's access_token.
unset($_SESSION['EB_OAUTH_ACCESS_TOKEN']);
}
public static function eventListRow( $evnt ) {
$time = strtotime($evnt->start_date);
$venue_name = 'online';
if( isset($evnt->venue) && isset( $evnt->venue->name )){
$venue_name = $evnt->venue->name;
}
return "<div id='evnt_div_1' class=\"grid_7\"><a class='eb_event_list_title' target=_blank href='".$evnt->url."'>".$evnt->title."</a><br><span class='eb_event_list_location'>" . $venue_name . "</span></span></div>
<div id='evnt_div_2' class=\"grid_5 omega\" align='right'><span class='eb_event_list_date'>" .strftime('%a, %B %e', $time). ", </span><span class='eb_event_list_time'>" .strftime('%l:%M %p', $time). "</span></div>\n\n";
}
/*
* Widgets:
*/
public static function loginWidget( $options, $get_token='getAccessToken', $save_token='saveAccessToken', $delete_token='deleteAccessToken', $render_login_box='widgetHTML' ){
if( ( isset($options['logout_link'])
&& $options['logout_link'] == $_SERVER['REQUEST_URI'] )
// TODO: add a way to disable this default:
|| ( isset($_GET['eb_logout'])
&& $_GET['eb_logout']=="true" )) {
// clear this user's access_token -
Eventbrite::deleteAccessToken();
// remove our "logout=true" trigger from the querystring-
header("Location: " . $_SERVER['PHP_SELF']);
exit;
}
// automatically pull the access_code from the querysting?
// TODO: add a way to disable this:
if(!isset($options['access_code'] )){
$options['access_code'] = isset($_REQUEST['code']) ? $_REQUEST['code'] : null;
}
// automatically grab errors from the querystring?
// TODO: add a way to disable this:
if(!isset($options['error_message'])){
$options['error_message'] = isset($_REQUEST['error']) ? $_REQUEST['error'] : null;
}
// Check to see if we have a valid user account
// and Proccess any data-related work:
$response = Eventbrite::OAuthLogin($options, $get_token, $save_token, $delete_token);
// package up the data for our view / template:
$login_params = array();
if( is_array($response)){
if( isset( $response['user_email']) ){
$login_params = array('user_name' => $response['user_name'],
'user_email' => $response['user_email']);
}
$login_params['oauth_link'] = Eventbrite::oauthNextStep($options['app_key']);
if(isset( $response['login_error'])){
$login_params['login_error'] = $response['login_error'];
}
if(isset( $options['logout_link'])){
$login_params['logout_link'] = $options['logout_link'];
}else{
$login_params['logout_link'] = $_SERVER['PHP_SELF'] . '?eb_logout=true';
}
}
// view related work:
// render your "template"
if(is_callable($render_login_box)){
return $render_login_box( $login_params );
}elseif(is_callable(array('self',$render_login_box))){
return self::$render_login_box( $login_params );
}else{
//the templating callback was not valid,
//return the raw data for use with an external template
return $login_params;
}
}
public static function ticketWidget( $evnt, $height='650px', $width='100%' ) {
return '<div style="width:100%; text-align:left;" ><iframe src="http://www.eventbrite.com/tickets-external?eid=' . $evnt->id . '&ref=etckt" frameborder="0" height="'.$height.'" width="'.$width.'" vspace="0" hspace="0" marginheight="5" marginwidth="5" scrolling="auto" allowtransparency="true"></iframe><div style="font-family:Helvetica, Arial; font-size:10px; padding:5px 0 5px; margin:2px; width:100%; text-align:left;" ><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/r/etckt" >Online Ticketing</a><span style="color:#ddd;" > for </span><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/event/' . $evnt->id . '?ref=etckt" >' . $evnt->title . '</a><span style="color:#ddd;" > powered by </span><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com?ref=etckt" >Eventbrite</a></div></div>';
}
public static function registrationWidget( $evnt ) {
return '<div style="width:100%; text-align:left;" ><iframe src="http://www.eventbrite.com/event/' . $evnt->id . '?ref=eweb" frameborder="0" height="1000" width="100%" vspace="0" hspace="0" marginheight="5" marginwidth="5" scrolling="auto" allowtransparency="true"></iframe><div style="font-family:Helvetica, Arial; font-size:10px; padding:5px 0 5px; margin:2px; width:100%; text-align:left;" ><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/r/eweb" >Online Ticketing</a><span style="color:#ddd;" > for </span><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/event/' . $evnt->id . '?ref=eweb" >' . $evnt->title . '</a><span style="color:#ddd;" > powered by </span><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com?ref=eweb" >Eventbrite</a></div></div>';
}
public static function calendarWidget( $evnt ) {
return '<div style="width:195px; text-align:center;" ><iframe src="http://www.eventbrite.com/calendar-widget?eid=' . $evnt->id . '" frameborder="0" height="382" width="195" marginheight="0" marginwidth="0" scrolling="no" allowtransparency="true"></iframe><div style="font-family:Helvetica, Arial; font-size:10px; padding:5px 0 5px; margin:2px; width:195px; text-align:center;" ><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/r/ecal">Online event registration</a><span style="color:#ddd;" > powered by </span><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com?ref=ecal" >Eventbrite</a></div></div>';
}
public static function countdownWidget( $evnt ) {
return '<div style="width:195px; text-align:center;" ><iframe src="http://www.eventbrite.com/countdown-widget?eid=' . $evnt->id . '" frameborder="0" height="479" width="195" marginheight="0" marginwidth="0" scrolling="no" allowtransparency="true"></iframe><div style="font-family:Helvetica, Arial; font-size:10px; padding:5px 0 5px; margin:2px; width:195px; text-align:center;" ><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/r/ecount" >Online event registration</a><span style="color:#ddd;" > for </span><a style="color:#ddd; text-decoration:none;" target="_blank" href="http://www.eventbrite.com/event/' . $evnt->id . '?ref=ecount" >' . $evnt->title . '</a></div></div>';
}
public static function buttonWidget( $evnt ) {
return '<a href="http://www.eventbrite.com/event/' . $evnt->id . '?ref=ebtn" target="_blank"><img border="0" src="http://www.eventbrite.com/custombutton?eid=' . $evnt->id . '" alt="Register for ' . $evnt->title . ' on Eventbrite" /></a>';
}
public static function linkWidget( $evnt, $text=null, $color=null ) {
return '<a href="http://www.eventbrite.com/event/' . $evnt->id . '?ref=elink" target="_blank" style="color:' . ( $color ? $color : "#000000" ) . ';">' . ( $text ? $text : $evnt->title ) . '</a>';
}
};
?>