Complete oAuth script for Twitter and LinkedIn using PECL oAuth Extension

Posted on April 4, 2010 by Hasin Hayder

After searching for help to connect with LinkedIn via their oAuth protocol using PECL oAuth extension, I’ve found that lots of people are posting in their forum for the code samples. And only very few obscure code examples are available. I’ve found phplinkedin script but that is just too bulky for a simple oAuth dance

So here are two files to perform 3 step oAuth Dance for both twitter and linkedin. Just set your consumer key and consumer secret key in these scripts (config.php) and in your LinkedIn and Twitter application, set the url of these scripts as authentication callback thats it

check out the source code below or just straight download them from the following url
http://www.box.net/shared/oc0u7ym5y7

config.php: source

<?
//config.php
$oauth['twitter']['consumersecret']="UtNkcJC5VqmHgSgxMIRl2UcHaJLWINzr1g2q*****";
$oauth['twitter']['consumerkey']="LveyUCUf9Ym96AU7*****";
$oauth['twitter']['requesttokenurl']="http://twitter.com/oauth/request_token";
$oauth['twitter']['accesstokenurl']="http://twitter.com/oauth/access_token";
$oauth['twitter']['authurl']="http://twitter.com/oauth/authorize";
$oauth['linkedin']['consumersecret']="SX9FS_Ptz7yNA3WtTW0e8z3_XSiROnVSpOEbAVCfKAn7fqFq4kjelVXiNMO*****";
$oauth['linkedin']['consumerkey']="qQkxCNYQbuALhWyBZO03V--6dtwUnQHz7KFE4PBpdIL6hy_87SHygEZAJj9*****";
$oauth['linkedin']['requesttokenurl']="https://api.linkedin.com/uas/oauth/requestToken";
$oauth['linkedin']['accesstokenurl']="https://api.linkedin.com/uas/oauth/accessToken";
$oauth['linkedin']['authurl']="https://api.linkedin.com/uas/oauth/authorize";
?>

twitter.php: source

<?
//twitter.php
/**
 * twitter authentication script based on
 * pecl oauth extension
 */
session_start();
include_once("config.php");
/*
unset($_SESSION['trequest_token_secret']);
unset($_SESSION['taccess_oauth_token']);
unset($_SESSION['taccess_oauth_token_secret']);
 */
$oauthc = new OAuth($oauth['twitter']['consumerkey'],
        $oauth['twitter']['consumersecret'],
        OAUTH_SIG_METHOD_HMACSHA1,OAUTH_AUTH_TYPE_URI); //initiate
if(empty($_SESSION['trequest_token_secret'])) {
    //get the request token and store it
    $request_token_info = $oauthc->getRequestToken($oauth['twitter']['requesttokenurl']); //get request token
    $_SESSION['trequest_token_secret'] = $request_token_info['oauth_token_secret'];
    header("Location: {$oauth['twitter']['authurl']}?oauth_token=".$request_token_info['oauth_token']);//forward user to authorize url
}
else if(empty($_SESSION['taccess_oauth_token'])) {
    //get the access token - dont forget to save it 
    $request_token_secret = $_SESSION['trequest_token_secret'];
    $oauthc->setToken($_REQUEST['oauth_token'],$request_token_secret);//user allowed the app, so u
    $access_token_info = $oauthc->getAccessToken($oauth['twitter']['accesstokenurl']);
    $_SESSION['taccess_oauth_token']= $access_token_info['oauth_token'];
    $_SESSION['taccess_oauth_token_secret']= $access_token_info['oauth_token_secret'];
}
if(isset($_SESSION['taccess_oauth_token'])) {
    //now fetch current users profile
    $access_token = $_SESSION['taccess_oauth_token'];
    $access_token_secret =$_SESSION['taccess_oauth_token_secret'];
    $oauthc->setToken($access_token,$access_token_secret);
    $data = $oauthc->fetch('http://twitter.com/account/verify_credentials.json');
    $response_info = $oauthc->getLastResponse();
    echo "<pre>";
    print_r(json_decode($response_info));
    echo "</pre>";
}
?>

linkedin.php: source

<?
//linkedin.php
/**
 * linkedin authentication script based on
 * pecl oauth extension
 */
session_start();
include_once("config.php");
/*
unset($_SESSION['lrequest_token_secret']);
unset($_SESSION['laccess_oauth_token']);
unset($_SESSION['laccess_oauth_token_secret']);
 */
$oauthc = new OAuth($oauth['linkedin']['consumerkey'],
        $oauth['linkedin']['consumersecret'],
        OAUTH_SIG_METHOD_HMACSHA1,OAUTH_AUTH_TYPE_AUTHORIZATION); //initiate

$oauthc->setNonce(rand());

if(empty($_SESSION['lrequest_token_secret'])) {
    //get the request token and store it
    $request_token_info = $oauthc->getRequestToken($oauth['linkedin']['requesttokenurl']); //get request token
    $_SESSION['lrequest_token_secret'] = $request_token_info['oauth_token_secret'];
    header("Location: {$oauth['linkedin']['authurl']}?oauth_token=".$request_token_info['oauth_token']);//forward user to authorize url
}
else if(empty($_SESSION['laccess_oauth_token'])) {
    //get the access token  - dont forget to save it
    $request_token_secret = $_SESSION['lrequest_token_secret'];
    $oauthc->setToken($_REQUEST['oauth_token'],$request_token_secret);//user allowed the app, so u
    $access_token_info = $oauthc->getAccessToken($oauth['linkedin']['accesstokenurl']);
    $_SESSION['laccess_oauth_token']= $access_token_info['oauth_token'];
    $_SESSION['laccess_oauth_token_secret']= $access_token_info['oauth_token_secret'];
    $_SESSION['loauth_verifier'] = $_REQUEST['oauth_verifier'];
}
if(isset($_SESSION['laccess_oauth_token'])) {
    //now fetch current user's profile
    echo "<pre>";
    $access_token = $_SESSION['laccess_oauth_token'];
    $access_token_secret =$_SESSION['laccess_oauth_token_secret'];
    $oauth_verifier = $_SESSION['loauth_verifier'];
    $oauthc->setToken($access_token,$access_token_secret);
    $data = $oauthc->fetch('http://api.linkedin.com/v1/people/~');
    $response_info = $oauthc->getLastResponse();
    print_r(htmlspecialchars($response_info));
    echo "</pre>";
}
?>

Download these files from http://www.box.net/shared/oc0u7ym5y7 – Happy dancing time, in oAuth way

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34 thoughts on “Complete oAuth script for Twitter and LinkedIn using PECL oAuth Extension”

Rayhan Chowdhury on April 5, 2010 at 2:09 am said:

good job hasin bhai …:)

Reply ↓
- hasin on April 5, 2010 at 2:27 am said:
  
  thanks
trophaeum on April 5, 2010 at 6:12 am said:

if only more people would use pecl as a base for their code instead of pear/zend framework sigh

Reply ↓
Les on April 5, 2010 at 7:10 pm said:

Excellent

You are indeed a lifesaver, now… all we need is one to work with facebook if applicable and we’re off!

Thank you

Reply ↓
Adam Trachtenberg on April 9, 2010 at 11:14 pm said:

Nice code. Thanks for posting it.

You have a small typo on line 35 in linkedin.php. laccess_ouath_token should be laccess_oauth_token; you flipped the o and a in oauth.

Reply ↓
- hasin on April 9, 2010 at 11:20 pm said:
  
  Thanks for noticing it, Adam
  
  Corrected.
- trachtenberg on April 9, 2010 at 11:25 pm said:
  
  I only saw because I tried it and I couldn’t figure out why it didn’t work.
- hasin on April 9, 2010 at 11:31 pm said:
  
  crazy typo! thanks for the debugging
sohbet on April 11, 2010 at 7:42 pm said:

you flipped the o and a in oauth.

Reply ↓
snowy909 on May 2, 2010 at 2:32 am said:

This is fantastic thanks for sharing.

Paul

Reply ↓
sojan on May 22, 2010 at 2:07 am said:

hey dude thnx for the nice tutorial .

am really new to this.. .

can u suggest me how i can get the pecl extension to working , so tha ti can use this code

Reply ↓
hothsmultum on May 25, 2010 at 7:31 am said:

All about banks – Clydesdale bank spl and much more.

Reply ↓
nflliga on July 11, 2010 at 4:13 am said:

If you disposition watching matches NFL, then you probably also proclivity to bet on the match, and predominantly on your favorite teams?

Reply ↓
Ki on July 16, 2010 at 12:01 am said:

Fantastic work.
Do you have one for youtube?
I started one with PECL oAuth, but cannot get it working. I do get the key though…
function get_r_token(){
try {
$o = new OAuth(GOOGLE_OAUTH_CONSUMER_KEY,GOOGLE_OAUTH_CONSUMER_SECRET,OAUTH_SIG_METHOD_HMACSHA1,OAUTH_AUTH_TYPE_URI);

/* Google scopes are in the following format: urlencoded(scope) urlencoded(scope) */
$scopes = urlencode(“http://gdata.youtube.com/”);

$arrayResp = $o->getRequestToken(“https://www.google.com/accounts/OAuthGetRequestToken?scope={$scopes}”);
file_put_contents(OAUTH_TMP_DIR . “/request_token_resp”,serialize($arrayResp));
$authorizeUrl = “https://www.google.com/accounts/OAuthAuthorizeToken?oauth_token={$arrayResp["oauth_token"]}”;
if(PHP_SAPI==”cli”) {
echo “Navigate your http client to: {$authorizeUrl}\n”;
} else {
header(“Location: {$authorizeUrl}”);
}
} catch(OAuthException $E) {
echo “Response: “. $E->lastResponse . “\n”;
}
}

function get_a_token(){
try {
$o = new OAuth(GOOGLE_OAUTH_CONSUMER_KEY,GOOGLE_OAUTH_CONSUMER_SECRET,OAUTH_SIG_METHOD_HMACSHA1,OAUTH_AUTH_TYPE_URI);
$request_token_info = unserialize(file_get_contents(OAUTH_TMP_DIR . “/request_token_resp”));
$o->setToken($request_token_info["oauth_token"],$request_token_info["oauth_token_secret"]);
$arrayResp = $o->getAccessToken(“https://www.google.com/accounts/OAuthGetAccessToken”);
file_put_contents(OAUTH_TMP_DIR . “/access_token_resp”,serialize($arrayResp));
echo “Finished getting the access token!\n”;
} catch(OAuthException $E) {
echo “Response: “. $E->lastResponse . “\n”;
}
}

function delete(){
$oauth = new OAuth(GOOGLE_OAUTH_CONSUMER_KEY,GOOGLE_OAUTH_CONSUMER_SECRET,OAUTH_SIG_METHOD_HMACSHA1,OAUTH_AUTH_TYPE_URI);
$request_token_info = unserialize(file_get_contents(OAUTH_TMP_DIR . “/access_token_resp”));
$oauth->setNonce(rand());
$oauth->setToken($request_token_info["oauth_token"],$request_token_info["oauth_token_secret"]);
print_r($request_token_info);
/* put the OAuth params into the Authorization header */
$oauth->setAuthType(OAUTH_AUTH_TYPE_AUTHORIZATION);

$api_args = array(“empty”=>”empty”);
$oauth->fetch(GOOGLE_YT_EDIT_VIDEO.’OJG_857fsNw’, ”, OAUTH_HTTP_METHOD_DELETE, array(“User-Agent” => “pecl/oauth”));

}

Reply ↓
Pingback: Post status to Linkedin using PHP « 310 Stoddard
Shawn on August 8, 2010 at 8:30 am said:

How can i make it so when it logs in the person they follow me and tweet something on their account.

Reply ↓
Pingback: Complete oAuth script for Twitter and LinkedIn using PECL oAuth Extension | shahverdY
worked on September 9, 2010 at 11:23 pm said:

Hey there- I get this error:

Fatal error: Class ‘OAuth’ not found in C:\wamp\www\site_includes\twitter.php on line 14

Little help?

Reply ↓
popo on November 3, 2010 at 6:20 pm said:

Huh? I don’t understand this code at all. Where do you define the class OAuth?

$oauthc = new OAuth($oauth['twitter']['consumerkey'],

Are you using a library that you forgot to mention?

Reply ↓
- Olivier on January 1, 2011 at 4:46 am said:
  
  You just forgot to read the post…
Akshay on January 21, 2011 at 4:46 am said:

Hello,
I am also getting the error like OAuth class not found in…/linkedin.php. Can you tell me what the corrections I need to do?

Reply ↓
Akshay on January 21, 2011 at 4:48 am said:

Also ,
I have copied all the OAuth PECL related files in the current directory…Please help!

Reply ↓
ddofborg on June 4, 2011 at 3:48 pm said:

I get this exception: exception ‘OAuthException’ with message ‘Invalid auth/bad request (got a 400, expected HTTP/1.1 20X or a redirect)’

Which raises on this line: $data = $oauthc->fetch(‘http://api.linkedin.com/v1/people/~’);

Can anyone help me with this please? Thanks!

PS. Shouldn’t “$oauth_verifier” be used in somewhere?

Reply ↓
- Julio J. on June 27, 2011 at 6:34 pm said:
  
  I’ve fixed that problem replacing the line by this:
  
  $data = $oauthc->fetch(‘http://api.linkedin.com/v1/people/~‘, NULL, OAUTH_HTTP_METHOD_GET);
Marion Group on August 3, 2011 at 3:04 am said:

I tried it and nothing works. All I get is this error:
PHP Fatal error: Class ‘OAuth’ not found in C:\Inetpub\wwwroot\marioninteractive.com\linkedin\linkedin.php on line 14

I checked line 14 and even the other lines and don’t see any issues.

Anyone?

Reply ↓
Marion Group on August 3, 2011 at 3:05 am said:

Tweet me if you know the answer to my question above or just reply.

Reply ↓
Peter Frankel (@Iphone_DE01) on August 9, 2011 at 4:53 pm said:

Thanks for this!! Really Great!

Reply ↓
James on September 23, 2011 at 10:35 am said:

Hi, is this possible to be performed on a wordpress blog? If so, how exactly?

James

Reply ↓
smronju on November 14, 2011 at 4:53 pm said:

Finally this post help me a lot. Thanks bro for this nice post.

Reply ↓
Pingback: connecting to flickr using PHP and PECL oAuth extension « The Storyteller
Jahmic on April 12, 2012 at 1:44 pm said:

Some notes for people having trouble.

$oauth = new OAuth

is a standard PHP package. One that a lot of server don’t have by default. You have to install it or request your hosting company to do so (if they will). It’s not easy, but googling should help find the specifics for your OS.

Problems with getAccessToken

I found I had to change to code to the following:

$access_token_info = $oauth->getAccessToken($accesstokenurl, “”, $token);

$token is five digit number you get from linkedin.

Problems with $_REQUEST['oauth_token']

This should be saved in the beginning like so:

$_SESSION['lrequest_oauth_token']= $request_token_info['oauth_token'];

and then before setting the token, use :

$oauth_token = $_SESSION['lrequest_oauth_token'];

use $oauth_token instead of $_REQUEST['oauth_token']

Reply ↓
sports on October 22, 2012 at 9:16 am said:

This page really has all the information I wanted about this subject and didn’t know who to ask.

Reply ↓
minnesota driveway installers on December 26, 2012 at 8:08 pm said:

Hello, Neat post. There’s an issue along with your website in web explorer, might test this? IE still is the marketplace chief and a large element of other folks will omit your great writing because of this problem.

Reply ↓
Michelle on December 27, 2012 at 3:19 am said:

Hey just wanted to give you a quick heads up. The words in your article seem to be running off the screen in
Firefox. I’m not sure if this is a formatting issue or something to do with internet browser compatibility but I figured I’d post to let you know.

The layout look great though! Hope you get the issue resolved soon.
Thanks

Reply ↓

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Complete oAuth script for Twitter and LinkedIn using PECL oAuth Extension

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