From de3d9b40b6c7508f3e26fc1917de8f6b2555050c Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <mrpetovan@gmail.com>
Date: Tue, 30 Jan 2018 23:43:50 -0500
Subject: [PATCH] [statusnet] Remove explicit duplicate OAuth1 library

---
 statusnet/library/OAuth1.php       | 891 -----------------------------
 statusnet/library/twitteroauth.php |   3 -
 2 files changed, 894 deletions(-)
 delete mode 100644 statusnet/library/OAuth1.php

diff --git a/statusnet/library/OAuth1.php b/statusnet/library/OAuth1.php
deleted file mode 100644
index 57481f5df..000000000
--- a/statusnet/library/OAuth1.php
+++ /dev/null
@@ -1,891 +0,0 @@
-<?php
-// vim: foldmethod=marker
-
-/* Generic exception class
- */
-if (!class_exists('OAuthException')) {
-	class OAuthException extends Exception {
-		// pass
-	}
-
-	class OAuthConsumer {
-	  public $key;
-	  public $secret;
-
-	  function __construct($key, $secret, $callback_url=NULL) {
-		$this->key = $key;
-		$this->secret = $secret;
-		$this->callback_url = $callback_url;
-	  }
-
-	  function __toString() {
-		return "OAuthConsumer[key=$this->key,secret=$this->secret]";
-	  }
-	}
-
-	class OAuthToken {
-	  // access tokens and request tokens
-	  public $key;
-	  public $secret;
-
-	  public $expires;
-	  public $scope;
-	  public $uid;
-
-	  /**
-	   * key = the token
-	   * secret = the token secret
-	   */
-	  function __construct($key, $secret) {
-		$this->key = $key;
-		$this->secret = $secret;
-	  }
-
-	  /**
-	   * generates the basic string serialization of a token that a server
-	   * would respond to request_token and access_token calls with
-	   */
-	  function to_string() {
-		return "oauth_token=" .
-			   OAuthUtil::urlencode_rfc3986($this->key) .
-			   "&oauth_token_secret=" .
-			   OAuthUtil::urlencode_rfc3986($this->secret);
-	  }
-
-	  function __toString() {
-		return $this->to_string();
-	  }
-	}
-
-	/**
-	 * A class for implementing a Signature Method
-	 * See section 9 ("Signing Requests") in the spec
-	 */
-	abstract class OAuthSignatureMethod {
-	  /**
-	   * Needs to return the name of the Signature Method (ie HMAC-SHA1)
-	   * @return string
-	   */
-	  abstract public function get_name();
-
-	  /**
-	   * Build up the signature
-	   * NOTE: The output of this function MUST NOT be urlencoded.
-	   * the encoding is handled in OAuthRequest when the final
-	   * request is serialized
-	   * @param OAuthRequest $request
-	   * @param OAuthConsumer $consumer
-	   * @param OAuthToken $token
-	   * @return string
-	   */
-	  abstract public function build_signature($request, $consumer, $token);
-
-	  /**
-	   * Verifies that a given signature is correct
-	   * @param OAuthRequest $request
-	   * @param OAuthConsumer $consumer
-	   * @param OAuthToken $token
-	   * @param string $signature
-	   * @return bool
-	   */
-	  public function check_signature($request, $consumer, $token, $signature) {
-		$built = $this->build_signature($request, $consumer, $token);
-		//echo "<pre>"; var_dump($signature, $built, ($built == $signature)); killme();
-		return ($built == $signature);
-	  }
-	}
-
-	/**
-	 * The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
-	 * where the Signature Base String is the text and the key is the concatenated values (each first
-	 * encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
-	 * character (ASCII code 38) even if empty.
-	 *   - Chapter 9.2 ("HMAC-SHA1")
-	 */
-	class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
-	  function get_name() {
-		return "HMAC-SHA1";
-	  }
-
-	  public function build_signature($request, $consumer, $token) {
-		$base_string = $request->get_signature_base_string();
-		$request->base_string = $base_string;
-
-		$key_parts = array(
-		  $consumer->secret,
-		  ($token) ? $token->secret : ""
-		);
-
-		$key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
-		$key = implode('&', $key_parts);
-
-
-		$r = base64_encode(hash_hmac('sha1', $base_string, $key, true));
-		return $r;
-	  }
-	}
-
-	/**
-	 * The PLAINTEXT method does not provide any security protection and SHOULD only be used
-	 * over a secure channel such as HTTPS. It does not use the Signature Base String.
-	 *   - Chapter 9.4 ("PLAINTEXT")
-	 */
-	class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
-	  public function get_name() {
-		return "PLAINTEXT";
-	  }
-
-	  /**
-	   * oauth_signature is set to the concatenated encoded values of the Consumer Secret and
-	   * Token Secret, separated by a '&' character (ASCII code 38), even if either secret is
-	   * empty. The result MUST be encoded again.
-	   *   - Chapter 9.4.1 ("Generating Signatures")
-	   *
-	   * Please note that the second encoding MUST NOT happen in the SignatureMethod, as
-	   * OAuthRequest handles this!
-	   */
-	  public function build_signature($request, $consumer, $token) {
-		$key_parts = array(
-		  $consumer->secret,
-		  ($token) ? $token->secret : ""
-		);
-
-		$key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
-		$key = implode('&', $key_parts);
-		$request->base_string = $key;
-
-		return $key;
-	  }
-	}
-
-	/**
-	 * The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
-	 * [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
-	 * EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
-	 * verified way to the Service Provider, in a manner which is beyond the scope of this
-	 * specification.
-	 *   - Chapter 9.3 ("RSA-SHA1")
-	 */
-	abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
-	  public function get_name() {
-		return "RSA-SHA1";
-	  }
-
-	  // Up to the SP to implement this lookup of keys. Possible ideas are:
-	  // (1) do a lookup in a table of trusted certs keyed off of consumer
-	  // (2) fetch via http using a url provided by the requester
-	  // (3) some sort of specific discovery code based on request
-	  //
-	  // Either way should return a string representation of the certificate
-	  protected abstract function fetch_public_cert(&$request);
-
-	  // Up to the SP to implement this lookup of keys. Possible ideas are:
-	  // (1) do a lookup in a table of trusted certs keyed off of consumer
-	  //
-	  // Either way should return a string representation of the certificate
-	  protected abstract function fetch_private_cert(&$request);
-
-	  public function build_signature($request, $consumer, $token) {
-		$base_string = $request->get_signature_base_string();
-		$request->base_string = $base_string;
-
-		// Fetch the private key cert based on the request
-		$cert = $this->fetch_private_cert($request);
-
-		// Pull the private key ID from the certificate
-		$privatekeyid = openssl_get_privatekey($cert);
-
-		// Sign using the key
-		$ok = openssl_sign($base_string, $signature, $privatekeyid);
-
-		// Release the key resource
-		openssl_free_key($privatekeyid);
-
-		return base64_encode($signature);
-	  }
-
-	  public function check_signature($request, $consumer, $token, $signature) {
-		$decoded_sig = base64_decode($signature);
-
-		$base_string = $request->get_signature_base_string();
-
-		// Fetch the public key cert based on the request
-		$cert = $this->fetch_public_cert($request);
-
-		// Pull the public key ID from the certificate
-		$publickeyid = openssl_get_publickey($cert);
-
-		// Check the computed signature against the one passed in the query
-		$ok = openssl_verify($base_string, $decoded_sig, $publickeyid);
-
-		// Release the key resource
-		openssl_free_key($publickeyid);
-
-		return $ok == 1;
-	  }
-	}
-
-	class OAuthRequest {
-	  private $parameters;
-	  private $http_method;
-	  private $http_url;
-	  // for debug purposes
-	  public $base_string;
-	  public static $version = '1.0';
-	  public static $POST_INPUT = 'php://input';
-
-	  function __construct($http_method, $http_url, $parameters=NULL) {
-		@$parameters or $parameters = array();
-		$parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
-		$this->parameters = $parameters;
-		$this->http_method = $http_method;
-		$this->http_url = $http_url;
-	  }
-
-
-	  /**
-	   * attempt to build up a request from what was passed to the server
-	   */
-	  public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {
-		$scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on")
-				  ? 'http'
-				  : 'https';
-		@$http_url or $http_url = $scheme .
-								  '://' . $_SERVER['HTTP_HOST'] .
-								  ':' .
-								  $_SERVER['SERVER_PORT'] .
-								  $_SERVER['REQUEST_URI'];
-		@$http_method or $http_method = $_SERVER['REQUEST_METHOD'];
-
-		// We weren't handed any parameters, so let's find the ones relevant to
-		// this request.
-		// If you run XML-RPC or similar you should use this to provide your own
-		// parsed parameter-list
-		if (!$parameters) {
-		  // Find request headers
-		  $request_headers = OAuthUtil::get_headers();
-
-		  // Parse the query-string to find GET parameters
-		  $parameters = OAuthUtil::parse_parameters($_SERVER['QUERY_STRING']);
-
-		  // It's a POST request of the proper content-type, so parse POST
-		  // parameters and add those overriding any duplicates from GET
-		  if ($http_method == "POST"
-			  && @strstr($request_headers["Content-Type"],
-						 "application/x-www-form-urlencoded")
-			  ) {
-			$post_data = OAuthUtil::parse_parameters(
-			  file_get_contents(self::$POST_INPUT)
-			);
-			$parameters = array_merge($parameters, $post_data);
-		  }
-
-		  // We have a Authorization-header with OAuth data. Parse the header
-		  // and add those overriding any duplicates from GET or POST
-		  if (@substr($request_headers['Authorization'], 0, 6) == "OAuth ") {
-			$header_parameters = OAuthUtil::split_header(
-			  $request_headers['Authorization']
-			);
-			$parameters = array_merge($parameters, $header_parameters);
-		  }
-
-		}
-		// fix for friendica redirect system
-
-		$http_url =  substr($http_url, 0, strpos($http_url,$parameters['pagename'])+strlen($parameters['pagename']));
-		unset( $parameters['pagename'] );
-
-		//echo "<pre>".__function__."\n"; var_dump($http_method, $http_url, $parameters, $_SERVER['REQUEST_URI']); killme();
-		return new OAuthRequest($http_method, $http_url, $parameters);
-	  }
-
-	  /**
-	   * pretty much a helper function to set up the request
-	   */
-	  public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {
-		@$parameters or $parameters = array();
-		$defaults = array("oauth_version" => OAuthRequest::$version,
-						  "oauth_nonce" => OAuthRequest::generate_nonce(),
-						  "oauth_timestamp" => OAuthRequest::generate_timestamp(),
-						  "oauth_consumer_key" => $consumer->key);
-		if ($token)
-		  $defaults['oauth_token'] = $token->key;
-
-		$parameters = array_merge($defaults, $parameters);
-
-		return new OAuthRequest($http_method, $http_url, $parameters);
-	  }
-
-	  public function set_parameter($name, $value, $allow_duplicates = true) {
-		if ($allow_duplicates && isset($this->parameters[$name])) {
-		  // We have already added parameter(s) with this name, so add to the list
-		  if (is_scalar($this->parameters[$name])) {
-			// This is the first duplicate, so transform scalar (string)
-			// into an array so we can add the duplicates
-			$this->parameters[$name] = array($this->parameters[$name]);
-		  }
-
-		  $this->parameters[$name][] = $value;
-		} else {
-		  $this->parameters[$name] = $value;
-		}
-	  }
-
-	  public function get_parameter($name) {
-		return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
-	  }
-
-	  public function get_parameters() {
-		return $this->parameters;
-	  }
-
-	  public function unset_parameter($name) {
-		unset($this->parameters[$name]);
-	  }
-
-	  /**
-	   * The request parameters, sorted and concatenated into a normalized string.
-	   * @return string
-	   */
-	  public function get_signable_parameters() {
-		// Grab all parameters
-		$params = $this->parameters;
-
-		// Remove oauth_signature if present
-		// Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
-		if (isset($params['oauth_signature'])) {
-		  unset($params['oauth_signature']);
-		}
-
-		return OAuthUtil::build_http_query($params);
-	  }
-
-	  /**
-	   * Returns the base string of this request
-	   *
-	   * The base string defined as the method, the url
-	   * and the parameters (normalized), each urlencoded
-	   * and the concated with &.
-	   */
-	  public function get_signature_base_string() {
-		$parts = array(
-		  $this->get_normalized_http_method(),
-		  $this->get_normalized_http_url(),
-		  $this->get_signable_parameters()
-		);
-
-		$parts = OAuthUtil::urlencode_rfc3986($parts);
-
-		return implode('&', $parts);
-	  }
-
-	  /**
-	   * just uppercases the http method
-	   */
-	  public function get_normalized_http_method() {
-		return strtoupper($this->http_method);
-	  }
-
-	  /**
-	   * parses the url and rebuilds it to be
-	   * scheme://host/path
-	   */
-	  public function get_normalized_http_url() {
-		$parts = parse_url($this->http_url);
-
-		$port = @$parts['port'];
-		$scheme = $parts['scheme'];
-		$host = $parts['host'];
-		$path = @$parts['path'];
-
-		$port or $port = ($scheme == 'https') ? '443' : '80';
-
-		if (($scheme == 'https' && $port != '443')
-			|| ($scheme == 'http' && $port != '80')) {
-		  $host = "$host:$port";
-		}
-		return "$scheme://$host$path";
-	  }
-
-	  /**
-	   * builds a url usable for a GET request
-	   */
-	  public function to_url() {
-		$post_data = $this->to_postdata();
-		$out = $this->get_normalized_http_url();
-		if ($post_data) {
-		  $out .= '?'.$post_data;
-		}
-		return $out;
-	  }
-
-	  /**
-	   * builds the data one would send in a POST request
-	   */
-	  public function to_postdata($raw = false) {
-		if ($raw)
-		  return($this->parameters);
-		else
-		  return OAuthUtil::build_http_query($this->parameters);
-	  }
-
-	  /**
-	   * builds the Authorization: header
-	   */
-	  public function to_header($realm=null) {
-		$first = true;
-		if($realm) {
-		  $out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
-		  $first = false;
-		} else
-		  $out = 'Authorization: OAuth';
-
-		$total = array();
-		foreach ($this->parameters as $k => $v) {
-		  if (substr($k, 0, 5) != "oauth") continue;
-		  if (is_array($v)) {
-			throw new OAuthException('Arrays not supported in headers');
-		  }
-		  $out .= ($first) ? ' ' : ',';
-		  $out .= OAuthUtil::urlencode_rfc3986($k) .
-				  '="' .
-				  OAuthUtil::urlencode_rfc3986($v) .
-				  '"';
-		  $first = false;
-		}
-		return $out;
-	  }
-
-	  public function __toString() {
-		return $this->to_url();
-	  }
-
-
-	  public function sign_request($signature_method, $consumer, $token) {
-		$this->set_parameter(
-		  "oauth_signature_method",
-		  $signature_method->get_name(),
-		  false
-		);
-		$signature = $this->build_signature($signature_method, $consumer, $token);
-		$this->set_parameter("oauth_signature", $signature, false);
-	  }
-
-	  public function build_signature($signature_method, $consumer, $token) {
-		$signature = $signature_method->build_signature($this, $consumer, $token);
-		return $signature;
-	  }
-
-	  /**
-	   * util function: current timestamp
-	   */
-	  private static function generate_timestamp() {
-		return time();
-	  }
-
-	  /**
-	   * util function: current nonce
-	   */
-	  private static function generate_nonce() {
-		$mt = microtime();
-		$rand = mt_rand();
-
-		return md5($mt . $rand); // md5s look nicer than numbers
-	  }
-	}
-
-	class OAuthServer {
-	  protected $timestamp_threshold = 300; // in seconds, five minutes
-	  protected $version = '1.0';             // hi blaine
-	  protected $signature_methods = array();
-
-	  protected $data_store;
-
-	  function __construct($data_store) {
-		$this->data_store = $data_store;
-	  }
-
-	  public function add_signature_method($signature_method) {
-		$this->signature_methods[$signature_method->get_name()] =
-		  $signature_method;
-	  }
-
-	  // high level functions
-
-	  /**
-	   * process a request_token request
-	   * returns the request token on success
-	   */
-	  public function fetch_request_token(&$request) {
-		$this->get_version($request);
-
-		$consumer = $this->get_consumer($request);
-
-		// no token required for the initial token request
-		$token = NULL;
-
-		$this->check_signature($request, $consumer, $token);
-
-		// Rev A change
-		$callback = $request->get_parameter('oauth_callback');
-		$new_token = $this->data_store->new_request_token($consumer, $callback);
-
-		return $new_token;
-	  }
-
-	  /**
-	   * process an access_token request
-	   * returns the access token on success
-	   */
-	  public function fetch_access_token(&$request) {
-		$this->get_version($request);
-
-		$consumer = $this->get_consumer($request);
-
-		// requires authorized request token
-		$token = $this->get_token($request, $consumer, "request");
-
-		$this->check_signature($request, $consumer, $token);
-
-		// Rev A change
-		$verifier = $request->get_parameter('oauth_verifier');
-		$new_token = $this->data_store->new_access_token($token, $consumer, $verifier);
-
-		return $new_token;
-	  }
-
-	  /**
-	   * verify an api call, checks all the parameters
-	   */
-	  public function verify_request(&$request) {
-		$this->get_version($request);
-		$consumer = $this->get_consumer($request);
-		//echo __file__.__line__.__function__."<pre>"; var_dump($consumer); die();
-		$token = $this->get_token($request, $consumer, "access");
-		$this->check_signature($request, $consumer, $token);
-		return array($consumer, $token);
-	  }
-
-	  // Internals from here
-	  /**
-	   * version 1
-	   */
-	  private function get_version(&$request) {
-		$version = $request->get_parameter("oauth_version");
-		if (!$version) {
-		  // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present.
-		  // Chapter 7.0 ("Accessing Protected Ressources")
-		  $version = '1.0';
-		}
-		if ($version !== $this->version) {
-		  throw new OAuthException("OAuth version '$version' not supported");
-		}
-		return $version;
-	  }
-
-	  /**
-	   * figure out the signature with some defaults
-	   */
-	  private function get_signature_method(&$request) {
-		$signature_method =
-			@$request->get_parameter("oauth_signature_method");
-
-		if (!$signature_method) {
-		  // According to chapter 7 ("Accessing Protected Ressources") the signature-method
-		  // parameter is required, and we can't just fallback to PLAINTEXT
-		  throw new OAuthException('No signature method parameter. This parameter is required');
-		}
-
-		if (!in_array($signature_method,
-					  array_keys($this->signature_methods))) {
-		  throw new OAuthException(
-			"Signature method '$signature_method' not supported " .
-			"try one of the following: " .
-			implode(", ", array_keys($this->signature_methods))
-		  );
-		}
-		return $this->signature_methods[$signature_method];
-	  }
-
-	  /**
-	   * try to find the consumer for the provided request's consumer key
-	   */
-	  private function get_consumer(&$request) {
-		$consumer_key = @$request->get_parameter("oauth_consumer_key");
-		if (!$consumer_key) {
-		  throw new OAuthException("Invalid consumer key");
-		}
-
-		$consumer = $this->data_store->lookup_consumer($consumer_key);
-		if (!$consumer) {
-		  throw new OAuthException("Invalid consumer");
-		}
-
-		return $consumer;
-	  }
-
-	  /**
-	   * try to find the token for the provided request's token key
-	   */
-	  private function get_token(&$request, $consumer, $token_type="access") {
-		$token_field = @$request->get_parameter('oauth_token');
-		$token = $this->data_store->lookup_token(
-		  $consumer, $token_type, $token_field
-		);
-		if (!$token) {
-		  throw new OAuthException("Invalid $token_type token: $token_field");
-		}
-		return $token;
-	  }
-
-	  /**
-	   * all-in-one function to check the signature on a request
-	   * should guess the signature method appropriately
-	   */
-	  private function check_signature(&$request, $consumer, $token) {
-		// this should probably be in a different method
-		$timestamp = @$request->get_parameter('oauth_timestamp');
-		$nonce = @$request->get_parameter('oauth_nonce');
-
-		$this->check_timestamp($timestamp);
-		$this->check_nonce($consumer, $token, $nonce, $timestamp);
-
-		$signature_method = $this->get_signature_method($request);
-
-		$signature = $request->get_parameter('oauth_signature');
-		$valid_sig = $signature_method->check_signature(
-		  $request,
-		  $consumer,
-		  $token,
-		  $signature
-		);
-
-
-		if (!$valid_sig) {
-		  throw new OAuthException("Invalid signature");
-		}
-	  }
-
-	  /**
-	   * check that the timestamp is new enough
-	   */
-	  private function check_timestamp($timestamp) {
-		if( ! $timestamp )
-		  throw new OAuthException(
-			'Missing timestamp parameter. The parameter is required'
-		  );
-
-		// verify that timestamp is recentish
-		$now = time();
-		if (abs($now - $timestamp) > $this->timestamp_threshold) {
-		  throw new OAuthException(
-			"Expired timestamp, yours $timestamp, ours $now"
-		  );
-		}
-	  }
-
-	  /**
-	   * check that the nonce is not repeated
-	   */
-	  private function check_nonce($consumer, $token, $nonce, $timestamp) {
-		if( ! $nonce )
-		  throw new OAuthException(
-			'Missing nonce parameter. The parameter is required'
-		  );
-
-		// verify that the nonce is uniqueish
-		$found = $this->data_store->lookup_nonce(
-		  $consumer,
-		  $token,
-		  $nonce,
-		  $timestamp
-		);
-		if ($found) {
-		  throw new OAuthException("Nonce already used: $nonce");
-		}
-	  }
-
-	}
-
-	class OAuthDataStore {
-	  function lookup_consumer($consumer_key) {
-		// implement me
-	  }
-
-	  function lookup_token($consumer, $token_type, $token) {
-		// implement me
-	  }
-
-	  function lookup_nonce($consumer, $token, $nonce, $timestamp) {
-		// implement me
-	  }
-
-	  function new_request_token($consumer, $callback = null) {
-		// return a new token attached to this consumer
-	  }
-
-	  function new_access_token($token, $consumer, $verifier = null) {
-		// return a new access token attached to this consumer
-		// for the user associated with this token if the request token
-		// is authorized
-		// should also invalidate the request token
-	  }
-
-	}
-
-	class OAuthUtil {
-	  public static function urlencode_rfc3986($input) {
-	  if (is_array($input)) {
-		return array_map(array('OAuthUtil', 'urlencode_rfc3986'), $input);
-	  } else if (is_scalar($input)) {
-		return str_replace(
-		  '+',
-		  ' ',
-		  str_replace('%7E', '~', rawurlencode($input))
-		);
-	  } else {
-		return '';
-	  }
-	}
-
-
-	  // This decode function isn't taking into consideration the above
-	  // modifications to the encoding process. However, this method doesn't
-	  // seem to be used anywhere so leaving it as is.
-	  public static function urldecode_rfc3986($string) {
-		return urldecode($string);
-	  }
-
-	  // Utility function for turning the Authorization: header into
-	  // parameters, has to do some unescaping
-	  // Can filter out any non-oauth parameters if needed (default behaviour)
-	  public static function split_header($header, $only_allow_oauth_parameters = true) {
-		$pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/';
-		$offset = 0;
-		$params = array();
-		while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) {
-		  $match = $matches[0];
-		  $header_name = $matches[2][0];
-		  $header_content = (isset($matches[5])) ? $matches[5][0] : $matches[4][0];
-		  if (preg_match('/^oauth_/', $header_name) || !$only_allow_oauth_parameters) {
-			$params[$header_name] = OAuthUtil::urldecode_rfc3986($header_content);
-		  }
-		  $offset = $match[1] + strlen($match[0]);
-		}
-
-		if (isset($params['realm'])) {
-		  unset($params['realm']);
-		}
-
-		return $params;
-	  }
-
-	  // helper to try to sort out headers for people who aren't running apache
-	  public static function get_headers() {
-		if (function_exists('apache_request_headers')) {
-		  // we need this to get the actual Authorization: header
-		  // because apache tends to tell us it doesn't exist
-		  $headers = apache_request_headers();
-
-		  // sanitize the output of apache_request_headers because
-		  // we always want the keys to be Cased-Like-This and arh()
-		  // returns the headers in the same case as they are in the
-		  // request
-		  $out = array();
-		  foreach( $headers AS $key => $value ) {
-			$key = str_replace(
-				" ",
-				"-",
-				ucwords(strtolower(str_replace("-", " ", $key)))
-			  );
-			$out[$key] = $value;
-		  }
-		} else {
-		  // otherwise we don't have apache and are just going to have to hope
-		  // that $_SERVER actually contains what we need
-		  $out = array();
-		  if( isset($_SERVER['CONTENT_TYPE']) )
-			$out['Content-Type'] = $_SERVER['CONTENT_TYPE'];
-		  if( isset($_ENV['CONTENT_TYPE']) )
-			$out['Content-Type'] = $_ENV['CONTENT_TYPE'];
-
-		  foreach ($_SERVER as $key => $value) {
-			if (substr($key, 0, 5) == "HTTP_") {
-			  // this is chaos, basically it is just there to capitalize the first
-			  // letter of every word that is not an initial HTTP and strip HTTP
-			  // code from przemek
-			  $key = str_replace(
-				" ",
-				"-",
-				ucwords(strtolower(str_replace("_", " ", substr($key, 5))))
-			  );
-			  $out[$key] = $value;
-			}
-		  }
-		}
-		return $out;
-	  }
-
-	  // This function takes a input like a=b&a=c&d=e and returns the parsed
-	  // parameters like this
-	  // array('a' => array('b','c'), 'd' => 'e')
-	  public static function parse_parameters( $input ) {
-		if (!isset($input) || !$input) return array();
-
-		$pairs = explode('&', $input);
-
-		$parsed_parameters = array();
-		foreach ($pairs as $pair) {
-		  $split = explode('=', $pair, 2);
-		  $parameter = OAuthUtil::urldecode_rfc3986($split[0]);
-		  $value = isset($split[1]) ? OAuthUtil::urldecode_rfc3986($split[1]) : '';
-
-		  if (isset($parsed_parameters[$parameter])) {
-			// We have already recieved parameter(s) with this name, so add to the list
-			// of parameters with this name
-
-			if (is_scalar($parsed_parameters[$parameter])) {
-			  // This is the first duplicate, so transform scalar (string) into an array
-			  // so we can add the duplicates
-			  $parsed_parameters[$parameter] = array($parsed_parameters[$parameter]);
-			}
-
-			$parsed_parameters[$parameter][] = $value;
-		  } else {
-			$parsed_parameters[$parameter] = $value;
-		  }
-		}
-		return $parsed_parameters;
-	  }
-
-	  public static function build_http_query($params) {
-		if (!$params) return '';
-
-		// Urlencode both keys and values
-		$keys = OAuthUtil::urlencode_rfc3986(array_keys($params));
-		$values = OAuthUtil::urlencode_rfc3986(array_values($params));
-		$params = array_combine($keys, $values);
-
-		// Parameters are sorted by name, using lexicographical byte value ordering.
-		// Ref: Spec: 9.1.1 (1)
-		uksort($params, 'strcmp');
-
-		$pairs = array();
-		foreach ($params as $parameter => $value) {
-		  if (is_array($value)) {
-			// If two or more parameters share the same name, they are sorted by their value
-			// Ref: Spec: 9.1.1 (1)
-			natsort($value);
-			foreach ($value as $duplicate_value) {
-			  $pairs[] = $parameter . '=' . $duplicate_value;
-			}
-		  } else {
-			$pairs[] = $parameter . '=' . $value;
-		  }
-		}
-		// For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61)
-		// Each name-value pair is separated by an '&' character (ASCII code 38)
-		return implode('&', $pairs);
-	  }
-	}
-}
diff --git a/statusnet/library/twitteroauth.php b/statusnet/library/twitteroauth.php
index 323156ebb..bf56fc018 100644
--- a/statusnet/library/twitteroauth.php
+++ b/statusnet/library/twitteroauth.php
@@ -8,9 +8,6 @@
  * Version 0.2.0 kept for compatibility purpose with StatusNetOAuth
  */
 
-/* Load OAuth lib. You can find it at http://oauth.net */
-require_once __DIR__ . DIRECTORY_SEPARATOR . 'OAuth1.php';
-
 /**
  * Twitter OAuth class
  */