Question

I want to get the profile info after getting the token

<?php

    session_start ();

    if (!$_SESSION['linkedin_access_token'])
    {
        echo 'Grant access first';
        exit ();
    }

    ## step 0
    define ('LINKEDIN_KEY', 'xxxxxx');
    define ('LINKEDIN_SECRET', 'xxxxxxx');

    function urlencode_oauth ($str)
    {
        return str_replace ('+', ' ', str_replace ('%7E', '~', rawurlencode ($str)));
    }

    $links = array (
        'request_token' => 'https://api.linkedin.com/uas/oauth/requestToken',
        'authorize' => 'https://www.linkedin.com/uas/oauth/authorize',
        'access_token' => 'https://api.linkedin.com/uas/oauth/accessToken',
    );


    ## step 2
    $params = array (
        'oauth_consumer_key' => LINKEDIN_KEY,
        'oauth_nonce' => sha1 (microtime ()),
        'oauth_signature_method' => 'HMAC-SHA1',
        'oauth_timestamp' => time (),
        'oauth_token' => $_SESSION ['linkedin_access_token'],
        'oauth_version' => '1.0'
    );

    ## step 3
    // sort parameters according to ascending order of key
    // sort parameters according to ascending order of key
    ksort ($params);

    // prepare URL-encoded query string
    $q = array ();
    foreach ($params as $key => $value)
    {
        $q [] = urlencode_oauth ($key) . '=' . urlencode_oauth ($value);
    }
    $q = implode ('&', $q);

    // generate the base string for signature
    $parts = array (
        'POST',
        urlencode_oauth ('https://api.linkedin.com/v1/people/~'),
        urlencode_oauth ($q)
    );
    $base_string = implode ('&', $parts);

    ## step 4
    $key = urlencode_oauth (LINKEDIN_SECRET) . '&' . urlencode_oauth ($_SESSION ['linkedin_access_token_secret']);
    $signature = base64_encode (hash_hmac ('sha1', $base_string, $key, true));

    ## step 5
    $params ['oauth_signature'] = $signature;
    $str = array ();
    foreach ($params as $key => $value)
    {
        $str [] = $key . '="' . urlencode_oauth ($value) . '"';
    }
    $str = implode(', ', $str);
    $headers = array (
        'POST /v1/people/~ HTTP/1.1',
        'Host: api.linkedin.com',
        'Authorization: OAuth ' . $str,
        'Content-Type: text/xml;charset=UTF-8',
        'Content-Length: 0',
        'Connection: close'
    );

    ## step 6
    $fp = fsockopen ("ssl://api.linkedin.com", 443, $errno, $errstr, 30);
    if (!$fp)
    {
        echo 'Unable to connect to LinkedIn';
        exit();
    }
    $out = implode ("\r\n", $headers) . "\r\n\r\n";
    fputs ($fp, $out);

    // getting LinkedIn server response
    $res = '';
    while (!feof ($fp)) $res .= fgets ($fp, 4096);
    fclose ($fp);

    echo '<pre>';
    echo $res . "\n\n";
    echo $_SESSION ['linkedin_access_token'] . "\n" . $_SESSION ['linkedin_access_token_secret'];

 ?>

What’s wrong with it? it shows me

HTTP/1.1 405 Method Not Allowed
Server: Apache-Coyote/1.1
x-li-request-id: H8M76QXW5O
Date: Tue, 04 Sep 2012 12:09:21 GMT
Vary: *
x-li-format: xml
Content-Type: text/xml;charset=UTF-8
Content-Length: 262

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<error>
  <status>405</status>
  <timestamp>1346760561727</timestamp>
  <request-id>H8M76QXW5O</request-id>
  <error-code>0</error-code>
  <message>Unsupported POST target {/v1/people/~}</message>
</error>


xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx

Answer 1

As the documentation indicates, the Profile API does not support the POST method. Try using GET instead to retrieve profile data.