twitpic-example.php

<?php
  include ("oAuth.php");
  $noisy_debug_mode = 1;

  define("twitpicApiKey", "twitPic_Api_key");
  define("consumerSecret", 'myConsumerSecret');
  define("consumerKey", "myConsumerKey");
  define("oauthToken", "myAccessToken");
  define("oauthTokenSecret", "myAccessTokenSecret");

  # This is the end point at the OAuth Echo provider
  define("twitpicUploadUrl", "http://api.twitpic.com/2/upload.json");

  # This is the end point at Twitter that we want to Echo
  define("twitterEchoUrl", "https://api.twitter.com/1/account/verify_credentials.json");

  $fileToUpload = "@".$_SERVER["DOCUMENT_ROOT"] . "/labs/twitpic/shot.png";

  # Prepare an OAuth Consumer
  $consumer = new OAuthConsumer(consumerKey, consumerSecret, NULL);
  # Prepare an Access Token to represent the user
  $access_token = new OAuthToken(oauthToken, oauthTokenSecret);

  # Setup the mock request object so we can sign the request
  $request = OAuthRequest::from_consumer_and_token($consumer, $access_token, 'GET', twitterEchoUrl, NULL);

  # Sign the constructed OAuth request using HMAC-SHA1
  $request->sign_request(new OAuthSignatureMethod_HMAC_SHA1(), $consumer, $access_token);

  # We need to chop the header a bit to get it in the exact format
  # that TwitPic likes best.

  $header = $request->to_header();
  # Snip out the "Authorization: " part, and add a realm to be polite
  $real_header = explode("Authorization: OAuth", $header);
  $header = 'OAuth realm="http://api.twitter.com/",' . $real_header[1];
  # Keep the spaces between elements, even though we shouldn't have to
  $header = str_replace(",", ", ", $header);

  if ($noisy_debug_mode == 1) {
    print_r("X-Verify-Credentials-Authorization:\n" . $header . "\n");
    print_r("Signature Base String:\n" . $request->get_signature_base_string() . "\n");
  }

  $post["key"] = twitpicApiKey;
  $post["message"] = "Message";
  $post["media"] = $fileToUpload;

  $response = send_echo_request("POST", twitpicUploadUrl, $header, $post, twitterEchoUrl);

  # Evaluate the response
  print_r($response);

  function send_echo_request($http_method, $url, $auth_header, $postData, $echo_url) {
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, $url);

    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($curl, CURLOPT_FAILONERROR, false);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, true);

    // Set our OAuth Echo headers
    curl_setopt($curl, CURLOPT_HTTPHEADER, array(
            'X-Verify-Credentials-Authorization: ' . $auth_header,
            'X-Auth-Service-Provider: ' . $echo_url
            ));

    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $postData);


    $response = curl_exec($curl);
    if (!$response) {
      $response = curl_error($curl);
    }
    curl_close($curl);
    return $response;
  }
?>