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Configurable USER AGENT and permanent auth support #64

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Configurable USER AGENT and permanent auth support #64

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b8c7b25
Configurable USER AGENT
wIRC Feb 5, 2016
02b422d
Refresh Token and permanent auth support
wIRC Feb 5, 2016
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1 change: 1 addition & 0 deletions config.php
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ class redditConfig{
//access token configuration from https://ssl.reddit.com/prefs/apps
static $CLIENT_ID = 'YOUR CLIENT ID';
static $CLIENT_SECRET = 'YOUR SECRET';
static $CLIENT_USERAGENT = 'v0 (by /u/YOUR_USERNAME)';

//access token request scopes
//full list at http://www.reddit.com/dev/api/oauth
Expand Down
96 changes: 74 additions & 22 deletions reddit.php
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Original file line number Diff line number Diff line change
Expand Up @@ -11,52 +11,98 @@
*/
class reddit{
private $access_token;
private $token_type;
private $token_type = 'bearer';
private $auth_mode = 'basic';
static public $data;

/**
* Class Constructor
*
* Construct the class and simultaneously log a user in.
* @link https://github.com/reddit/reddit/wiki/API%3A-login
* @param string $mode The auth mode to use, either oauth (default) or basic
*/
public function __construct(){
if(isset($_COOKIE['reddit_token'])){
$token_info = explode(":", $_COOKIE['reddit_token']);
$this->token_type = $token_info[0];
$this->access_token = $token_info[1];
} else {
public function __construct($mode = 'oauth'){
self::loadData();

if ($mode == 'oauth'){
self::init_oauth();
} else {
self::init_basic();
}
}

public function init_basic(){
$this->apiHost = redditConfig::$ENDPOINT_STANDARD;
}

public function init_oauth(){
if (isset(self::$data['access_token']) && time() < self::$data['access_token_expires']) {
$this->access_token = self::$data['access_token'];
}
elseif (isset(self::$data['refresh_token'])) {
$refreshToken = self::$data['refresh_token'];

//construct POST object for access token fetch request
$postvals = sprintf("grant_type=refresh_token&refresh_token=%s",
$refreshToken,
redditConfig::$ENDPOINT_OAUTH_REDIRECT,
redditConfig::$CLIENT_ID);

//get JSON access token object (with refresh_token parameter)
$token = self::runCurl(redditConfig::$ENDPOINT_OAUTH_TOKEN, $postvals, null, true);

//store token and type
if (isset($token['access_token'])){
$this->access_token = $token['access_token'];
$this->token_type = $token['token_type'];

//set token cookie for later use
self::$data['access_token'] = $this->access_token;
self::$data['access_token_expires'] = time() + 3600;
self::saveData();
}
}
else {
if (isset($_GET['code'])){
//capture code from auth
$code = $_GET["code"];

//construct POST object for access token fetch request
$postvals = sprintf("code=%s&redirect_uri=%s&grant_type=authorization_code",
$postvals = sprintf("code=%s&redirect_uri=%s&grant_type=authorization_code&client_id=%s",
$code,
redditConfig::$ENDPOINT_OAUTH_REDIRECT);
redditConfig::$ENDPOINT_OAUTH_REDIRECT,
redditConfig::$CLIENT_ID);

//get JSON access token object (with refresh_token parameter)
$token = self::runCurl(redditConfig::$ENDPOINT_OAUTH_TOKEN, $postvals, null, true);

//store token and type
if (isset($token->access_token)){
$this->access_token = $token->access_token;
$this->token_type = $token->token_type;

if (isset($token['access_token'])){
$this->access_token = $token['access_token'];
$this->token_type = $token['token_type'];

//set token cookie for later use
$cookie_time = 60 * 59 + time(); //seconds * minutes = 59 minutes (token expires in 1hr)
setcookie('reddit_token', "{$this->token_type}:{$this->access_token}", $cookie_time);
self::$data['access_token'] = $this->access_token;
self::$data['access_token_expires'] = time() + 3600;
}
if (isset($token['refresh_token'])){
//set refresh token cookie for later use
self::$data['refresh_token'] = $token['refresh_token'];
}
self::saveData();

} else {
$state = rand();
$urlAuth = sprintf("%s?response_type=code&client_id=%s&redirect_uri=%s&scope=%s&state=%s",
$state = mt_rand();
$urlAuth = sprintf("%s?response_type=code&client_id=%s&redirect_uri=%s&scope=%s&state=%s&duration=permanent",
redditConfig::$ENDPOINT_OAUTH_AUTHORIZE,
redditConfig::$CLIENT_ID,
redditConfig::$ENDPOINT_OAUTH_REDIRECT,
redditConfig::$SCOPES,
$state);

//forward user to PayPal auth page
//forward user to Reddit auth page
header("Location: $urlAuth");
}
}
Expand Down Expand Up @@ -672,9 +718,7 @@ private function runCurl($url, $postVals = null, $headers = null, $auth = false)
CURLOPT_TIMEOUT => 10
);

if (!empty($_SERVER['HTTP_USER_AGENT'])){
$options[CURLOPT_USERAGENT] = $_SERVER['HTTP_USER_AGENT'];
}
$options[CURLOPT_USERAGENT] = php_uname('s').':'.redditConfig::$CLIENT_ID.':'.redditConfig::$CLIENT_USERAGENT;

if ($postVals != null){
$options[CURLOPT_POSTFIELDS] = $postVals;
Expand All @@ -695,7 +739,7 @@ private function runCurl($url, $postVals = null, $headers = null, $auth = false)
$options[CURLOPT_SSL_VERIFYPEER] = false;
$options[CURLOPT_SSL_VERIFYHOST] = 2;
}

curl_setopt_array($ch, $options);
$apiResponse = curl_exec($ch);
$response = json_decode($apiResponse);
Expand All @@ -705,8 +749,16 @@ private function runCurl($url, $postVals = null, $headers = null, $auth = false)
$response = $apiResponse;
}
curl_close($ch);

return $response;
}

private function loadData() {
self::$data = file_exists('tokens.json') ?
json_decode(file_get_contents('tokens.json'), true) : array();
}
private function saveData() {
file_put_contents('tokens.json', json_encode(self::$data));
}
}
?>