g4s merge 충돌 수정

plugin/kcp/kcpcert.head.skin.php

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+<?php
+if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
+
+// 휴대폰번호 체크
+if ($msg = valid_mb_hp($mb_hp))   alert($msg, "", true, true);
+if ($msg = exist_mb_hp($mb_hp, $mb_id))   alert($msg, "", true, true);
+
+$reg_mb_hp = preg_replace("/[^0-9]/", "", trim($_POST['mb_hp']));
+
+/* ======================================================================================================= */
+/* = 휴대폰인증 및 성인인증                                                                              = */
+/* ======================================================================================================= */
+if($w == '') {
+    // 본인인증체크
+    $kcpcert_no = get_session('ss_kcpcert_no');
+    if(!$kcpcert_no)
+        alert('휴대폰인증이 되지 않았습니다. 휴대폰인증을 해주세요.', '', true, true);
+
+    // 본인인증 hash 체크
+    $reg_hash = md5($reg_mb_hp.$mb_name.$kcpcert_no);
+    if(get_session('ss_kcpcert_hash') != $reg_hash)
+        alert('이름 또는 휴대폰번호가 올바르지 않습니다. 정상적인 방법으로 이용해 주세요.', '', true, true);
+
+} else if($w == 'u') {
+    // 휴대폰번호 변경체크
+    $old_hp = preg_replace("/[^0-9]/", "", trim($_POST['old_mb_hp']));
+
+    if($old_hp !== $reg_mb_hp) {
+        // 본인인증체크
+        $kcpcert_no = get_session('ss_kcpcert_no');
+        if(!$kcpcert_no)
+            alert('휴대폰번호가 변경됐습니다. 휴대폰인증을 해주세요.', '', true, true);
+
+        // 본인인증 hash 체크
+        $reg_hash = md5($reg_mb_hp.$mb_name.$kcpcert_no);
+        if(get_session('ss_kcpcert_hash') != $reg_hash)
+            alert('이름 또는 휴대폰인증 정보가 올바르지 않습니다. 정상적인 방법으로 이용해 주세요.', '', true, true);
+    }
+}
+/* ======================================================================================================= */
+?>

plugin/sns/facebook/.gitignore

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+/coverage/

plugin/sns/facebook/.travis.yml

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+language: php
+php:
+  - 5.3
+  - 5.4
+script: phpunit --stderr --bootstrap tests/bootstrap.php tests/tests.php

plugin/sns/facebook/_common.php

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+<?php
+include_once("../../../common.php");
+?>

plugin/sns/facebook/callback.php

@@ -0,0 +1,59 @@
+<?php
+include_once("./_common.php");
+include_once(G4_SNS_PATH."/facebook/src/facebook.php");
+
+$facebook = new Facebook(array(
+    'appId'  => $config['cf_facebook_appid'],
+    'secret' => $config['cf_facebook_secret']
+));
+
+$user = $facebook->getUser();
+
+if ($user) {
+    try {
+        $user_profile = $facebook->api('/me');
+    } catch (FacebookApiException $e) {
+        error_log($e);
+        $user = NULL;
+    }
+}
+
+$g4['title'] = '페이스북 콜백';
+include_once(G4_PATH.'/head.sub.php');
+
+if ($user) {
+    $sns_name   = $user_profile['name'];
+    $g4_sns_url = G4_SNS_URL;
+
+    set_cookie('ck_sns_name', $sns_name, 86400);
+
+    echo <<<EOT
+    <script>
+    $(function() {
+        document.write("<strong>페이스북 승인이 되었습니다.</strong>");
+
+        var opener = window.opener;
+        opener.$("#wr_name").val("{$sns_name}");
+        opener.$("#facebook_icon").attr("src", "{$g4_sns_url}/icon/facebook.png");
+        opener.$("#facebook_checked").attr("disabled", false);
+        opener.$("#facebook_checked").attr("checked", true);
+        window.close();
+    });
+    </script>
+EOT;
+
+} else {
+
+    echo <<<EOT
+    <script>
+    $(function() {
+        alert("페이스북 승인이 되지 않았습니다.");
+        window.close();
+    });
+    </script>
+EOT;
+
+}
+
+include_once(G4_PATH.'/tail.sub.php');
+?>

plugin/sns/facebook/changelog.md

@@ -0,0 +1,28 @@
+Facebook PHP SDK (v.3.0.0)
+==========================
+
+The new PHP SDK (v3.0.0) is a major upgrade to the older one (v2.2.x):
+
+- Uses OAuth authentication flows instead of our legacy authentication flow
+- Consists of two classes. The first (class BaseFacebook) maintains the core of the upgrade, and the second one (class Facebook) is a small subclass that uses PHP sessions to store the user id and access token.
+
+If you’re currently using the PHP SDK (v2.2.x) for authentication, you will recall that the login code looked like this:
+
+     $facebook = new Facebook(…);
+     $session = $facebook->getSession();
+     if ($session) {
+       // proceed knowing you have a valid user session
+     } else {
+       // proceed knowing you require user login and/or authentication
+     }
+
+The login code is now:
+
+     $facebook = new Facebook(…);
+     $user = $facebook->getUser();
+     if ($user) {
+       // proceed knowing you have a logged in user who's authenticated
+     } else {
+       // proceed knowing you require user login and/or authentication
+     }
+

plugin/sns/facebook/composer.json

@@ -0,0 +1,22 @@
+{
+    "name": "facebook/php-sdk",
+    "description": "Facebook PHP SDK",
+    "keywords": ["facebook", "sdk"],
+    "type": "library",
+    "homepage": "https://github.com/facebook/facebook-php-sdk",
+    "license": "Apache2",
+    "authors": [
+        {
+            "name": "Facebook",
+            "homepage": "https://github.com/facebook/facebook-php-sdk/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=5.2.0",
+        "ext-curl": "*",
+        "ext-json": "*"
+    },
+    "autoload": {
+        "classmap": ["src"]
+    }
+}

plugin/sns/facebook/examples/example.php

@@ -0,0 +1,105 @@
+<?php
+/**
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+require '../src/facebook.php';
+
+// Create our Application instance (replace this with your appId and secret).
+$facebook = new Facebook(array(
+  'appId'  => '119146498278078',
+  'secret' => '6ffd7e325e2b4fbd83a2eebf9c6f33f9',
+));
+
+// Get User ID
+$user = $facebook->getUser();
+
+// We may or may not have this data based on whether the user is logged in.
+//
+// If we have a $user id here, it means we know the user is logged into
+// Facebook, but we don't know if the access token is valid. An access
+// token is invalid if the user logged out of Facebook.
+
+if ($user) {
+  try {
+    // Proceed knowing you have a logged in user who's authenticated.
+    $user_profile = $facebook->api('/me');
+  } catch (FacebookApiException $e) {
+    error_log($e);
+    $user = null;
+  }
+}
+
+// Login or logout url will be needed depending on current user state.
+if ($user) {
+  $logoutUrl = $facebook->getLogoutUrl();
+} else {
+  $loginUrl = $facebook->getLoginUrl();
+}
+
+// This call will always work since we are fetching public data.
+$naitik = $facebook->api('/naitik');
+
+?>
+<!doctype html>
+<html xmlns:fb="http://www.facebook.com/2008/fbml">
+  <head>
+    <title>php-sdk</title>
+    <style>
+      body {
+        font-family: 'Lucida Grande', Verdana, Arial, sans-serif;
+      }
+      h1 a {
+        text-decoration: none;
+        color: #3b5998;
+      }
+      h1 a:hover {
+        text-decoration: underline;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>php-sdk</h1>
+
+    <?php if ($user): ?>
+      <a href="<?php echo $logoutUrl; ?>">Logout</a>
+    <?php else: ?>
+      <div>
+        Login using OAuth 2.0 handled by the PHP SDK:
+        <a href="<?php echo $loginUrl; ?>">Login with Facebook</a>
+      </div>
+    <?php endif ?>
+
+    <h3>PHP Cookie</h3>
+    <pre><?php print_r($_COOKIE); ?></pre>
+
+    <h3>PHP Session</h3>
+    <pre><?php print_r($_SESSION); ?></pre>
+
+    <?php if ($user): ?>
+      <h3>You</h3>
+      <img src="https://graph.facebook.com/<?php echo $user; ?>/picture">
+
+      <h3>Your User Object (/me)</h3>
+      <pre><?php print_r($user_profile); ?></pre>
+    <?php else: ?>
+      <strong><em>You are not Connected.</em></strong>
+    <?php endif ?>
+
+    <h3>Public profile of Naitik</h3>
+    <img src="https://graph.facebook.com/naitik/picture">
+    <?php echo $naitik['name']; ?>
+  </body>
+</html>

plugin/sns/facebook/examples/with_js_sdk.php

@@ -0,0 +1,62 @@
+<?php
+
+require '../src/facebook.php';
+
+$facebook = new Facebook(array(
+  'appId'  => '119146498278078',
+  'secret' => '6ffd7e325e2b4fbd83a2eebf9c6f33f9',
+));
+
+// See if there is a user from a cookie
+$user = $facebook->getUser();
+
+if ($user) {
+  try {
+    // Proceed knowing you have a logged in user who's authenticated.
+    $user_profile = $facebook->api('/me');
+  } catch (FacebookApiException $e) {
+    echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
+    $user = null;
+  }
+}
+
+?>
+<!DOCTYPE html>
+<html xmlns:fb="http://www.facebook.com/2008/fbml">
+  <body>
+    <h3>PHP Cookie</h3>
+    <pre><?php print_r($_COOKIE); ?></pre>
+
+    <?php if ($user) { ?>
+      Your user profile is
+      <pre>
+        <?php print htmlspecialchars(print_r($user_profile, true)) ?>
+      </pre>
+    <?php } else { ?>
+      <fb:login-button></fb:login-button>
+    <?php } ?>
+    <div id="fb-root"></div>
+    <script>
+      window.fbAsyncInit = function() {
+        FB.init({
+          appId: '<?php echo $facebook->getAppID() ?>',
+          cookie: true,
+          xfbml: true,
+          oauth: true
+        });
+        FB.Event.subscribe('auth.login', function(response) {
+          window.location.reload();
+        });
+        FB.Event.subscribe('auth.logout', function(response) {
+          window.location.reload();
+        });
+      };
+      (function() {
+        var e = document.createElement('script'); e.async = true;
+        e.src = document.location.protocol +
+          '//connect.facebook.net/en_US/all.js';
+        document.getElementById('fb-root').appendChild(e);
+      }());
+    </script>
+  </body>
+</html>

plugin/sns/facebook/readme.md

@@ -0,0 +1,85 @@
+Facebook PHP SDK (v.3.2.2)
+
+The [Facebook Platform](http://developers.facebook.com/) is
+a set of APIs that make your app more social.
+
+This repository contains the open source PHP SDK that allows you to
+access Facebook Platform from your PHP app. Except as otherwise noted,
+the Facebook PHP SDK is licensed under the Apache Licence, Version 2.0
+(http://www.apache.org/licenses/LICENSE-2.0.html).
+
+
+Usage
+-----
+
+The [examples][examples] are a good place to start. The minimal you'll need to
+have is:
+
+    require 'facebook-php-sdk/src/facebook.php';
+
+    $facebook = new Facebook(array(
+      'appId'  => 'YOUR_APP_ID',
+      'secret' => 'YOUR_APP_SECRET',
+    ));
+
+    // Get User ID
+    $user = $facebook->getUser();
+
+To make [API][API] calls:
+
+    if ($user) {
+      try {
+        // Proceed knowing you have a logged in user who's authenticated.
+        $user_profile = $facebook->api('/me');
+      } catch (FacebookApiException $e) {
+        error_log($e);
+        $user = null;
+      }
+    }
+
+Login or logout url will be needed depending on current user state.
+
+    if ($user) {
+      $logoutUrl = $facebook->getLogoutUrl();
+    } else {
+      $loginUrl = $facebook->getLoginUrl();
+    }
+
+[examples]: http://github.com/facebook/facebook-php-sdk/blob/master/examples/example.php
+[API]: http://developers.facebook.com/docs/api
+
+
+Tests
+-----
+
+In order to keep us nimble and allow us to bring you new functionality, without
+compromising on stability, we have ensured full test coverage of the SDK.
+We are including this in the open source repository to assure you of our
+commitment to quality, but also with the hopes that you will contribute back to
+help keep it stable. The easiest way to do so is to file bugs and include a
+test case.
+
+The tests can be executed by using this command from the base directory:
+
+    phpunit --stderr --bootstrap tests/bootstrap.php tests/tests.php
+
+
+Contributing
+===========
+For us to accept contributions you will have to first have signed the
+[Contributor License Agreement](https://developers.facebook.com/opensource/cla).
+
+When commiting, keep all lines to less than 80 characters, and try to
+follow the existing style.
+
+Before creating a pull request, squash your commits into a single commit.
+
+Add the comments where needed, and provide ample explanation in the
+commit message.
+
+
+Report Issues/Bugs
+===============
+[Bugs](https://developers.facebook.com/bugs)
+
+[Questions](http://facebook.stackoverflow.com)

plugin/sns/facebook/src/facebook.php

@@ -0,0 +1,160 @@
+<?php
+/**
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+
+require_once "base_facebook.php";
+
+/**
+ * Extends the BaseFacebook class with the intent of using
+ * PHP sessions to store user ids and access tokens.
+ */
+class Facebook extends BaseFacebook
+{
+  const FBSS_COOKIE_NAME = 'fbss';
+
+  // We can set this to a high number because the main session
+  // expiration will trump this.
+  const FBSS_COOKIE_EXPIRE = 31556926; // 1 year
+
+  // Stores the shared session ID if one is set.
+  protected $sharedSessionID;
+
+  /**
+   * Identical to the parent constructor, except that
+   * we start a PHP session to store the user ID and
+   * access token if during the course of execution
+   * we discover them.
+   *
+   * @param Array $config the application configuration. Additionally
+   * accepts "sharedSession" as a boolean to turn on a secondary
+   * cookie for environments with a shared session (that is, your app
+   * shares the domain with other apps).
+   * @see BaseFacebook::__construct in facebook.php
+   */
+  public function __construct($config) {
+    if (!session_id()) {
+      session_start();
+    }
+    parent::__construct($config);
+    if (!empty($config['sharedSession'])) {
+      $this->initSharedSession();
+    }
+  }
+
+  protected static $kSupportedKeys =
+    array('state', 'code', 'access_token', 'user_id');
+
+  protected function initSharedSession() {
+    $cookie_name = $this->getSharedSessionCookieName();
+    if (isset($_COOKIE[$cookie_name])) {
+      $data = $this->parseSignedRequest($_COOKIE[$cookie_name]);
+      if ($data && !empty($data['domain']) &&
+          self::isAllowedDomain($this->getHttpHost(), $data['domain'])) {
+        // good case
+        $this->sharedSessionID = $data['id'];
+        return;
+      }
+      // ignoring potentially unreachable data
+    }
+    // evil/corrupt/missing case
+    $base_domain = $this->getBaseDomain();
+    $this->sharedSessionID = md5(uniqid(mt_rand(), true));
+    $cookie_value = $this->makeSignedRequest(
+      array(
+        'domain' => $base_domain,
+        'id' => $this->sharedSessionID,
+      )
+    );
+    $_COOKIE[$cookie_name] = $cookie_value;
+    if (!headers_sent()) {
+      $expire = time() + self::FBSS_COOKIE_EXPIRE;
+      setcookie($cookie_name, $cookie_value, $expire, '/', '.'.$base_domain);
+    } else {
+      // @codeCoverageIgnoreStart
+      self::errorLog(
+        'Shared session ID cookie could not be set! You must ensure you '.
+        'create the Facebook instance before headers have been sent. This '.
+        'will cause authentication issues after the first request.'
+      );
+      // @codeCoverageIgnoreEnd
+    }
+  }
+
+  /**
+   * Provides the implementations of the inherited abstract
+   * methods.  The implementation uses PHP sessions to maintain
+   * a store for authorization codes, user ids, CSRF states, and
+   * access tokens.
+   */
+  protected function setPersistentData($key, $value) {
+    if (!in_array($key, self::$kSupportedKeys)) {
+      self::errorLog('Unsupported key passed to setPersistentData.');
+      return;
+    }
+
+    $session_var_name = $this->constructSessionVariableName($key);
+    $_SESSION[$session_var_name] = $value;
+  }
+
+  protected function getPersistentData($key, $default = false) {
+    if (!in_array($key, self::$kSupportedKeys)) {
+      self::errorLog('Unsupported key passed to getPersistentData.');
+      return $default;
+    }
+
+    $session_var_name = $this->constructSessionVariableName($key);
+    return isset($_SESSION[$session_var_name]) ?
+      $_SESSION[$session_var_name] : $default;
+  }
+
+  protected function clearPersistentData($key) {
+    if (!in_array($key, self::$kSupportedKeys)) {
+      self::errorLog('Unsupported key passed to clearPersistentData.');
+      return;
+    }
+
+    $session_var_name = $this->constructSessionVariableName($key);
+    unset($_SESSION[$session_var_name]);
+  }
+
+  protected function clearAllPersistentData() {
+    foreach (self::$kSupportedKeys as $key) {
+      $this->clearPersistentData($key);
+    }
+    if ($this->sharedSessionID) {
+      $this->deleteSharedSessionCookie();
+    }
+  }
+
+  protected function deleteSharedSessionCookie() {
+    $cookie_name = $this->getSharedSessionCookieName();
+    unset($_COOKIE[$cookie_name]);
+    $base_domain = $this->getBaseDomain();
+    setcookie($cookie_name, '', 1, '/', '.'.$base_domain);
+  }
+
+  protected function getSharedSessionCookieName() {
+    return self::FBSS_COOKIE_NAME . '_' . $this->getAppId();
+  }
+
+  protected function constructSessionVariableName($key) {
+    $parts = array('fb', $this->getAppId(), $key);
+    if ($this->sharedSessionID) {
+      array_unshift($parts, $this->sharedSessionID);
+    }
+    return implode('_', $parts);
+  }
+}

plugin/sns/facebook/tests/bootstrap.php

@@ -0,0 +1,5 @@
+<?php
+
+$base = realpath(dirname(__FILE__) . '/..');
+require "$base/src/base_facebook.php";
+require "$base/src/facebook.php";

plugin/sns/me2day/_common.php

@@ -0,0 +1,3 @@
+<?php
+include_once("../../../common.php");
+?>

plugin/sns/me2day/callback.php

@@ -0,0 +1,52 @@
+<?php
+include_once("./_common.php");
+
+$user_id  = $_GET['user_id'];
+$user_key = $_GET['user_key'];
+$auth_key = "12345678" . md5("12345678" . $user_key);
+
+$_SESSION['me2day']['user_id']  = $user_id;
+$_SESSION['me2day']['user_key'] = $user_key;
+
+$g4['title'] = '미투데이 콜백';
+include_once(G4_PATH.'/head.sub.php');
+
+$result = json_decode(file_get_contents("http://me2day.net/api/noop.json?uid={$user_id}&ukey={$auth_key}&akey=".$config['cf_me2day_key']));
+if ($result->code == 0) {
+
+    $user = json_decode(file_get_contents("http://me2day.net/api/get_person/{$user_id}.json"));
+    $sns_name   = $user->nickname;
+    $g4_sns_url = G4_SNS_URL;
+
+    set_cookie('ck_sns_name', $sns_name, 86400);
+
+    echo <<<EOT
+    <script>
+    $(function() {
+        document.write("<strong>미투데이에 승인이 되었습니다.</strong>");
+
+        var opener = window.opener;
+        opener.$("#wr_name").val("{$sns_name}");
+        opener.$("#me2day_icon").attr("src", "{$g4_sns_url}/icon/me2day.png");
+        opener.$("#me2day_checked").attr("disabled", false);
+        opener.$("#me2day_checked").attr("checked", true);
+        window.close();
+    });
+    </script>
+EOT;
+
+} else {
+
+    echo <<<EOT
+    <script>
+    $(function() {
+        alert("미투데이에 승인이 되지 않았습니다.");
+        window.close();
+    });
+    </script>
+EOT;
+
+}
+
+include_once(G4_PATH.'/tail.sub.php');
+?>

plugin/sns/twitter/.gitignore

@@ -0,0 +1 @@
+config.php

plugin/sns/twitter/LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2009 Abraham Williams - http://abrah.am - abraham@poseurte.ch
+ 
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+ 
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.

plugin/sns/twitter/README.md

@@ -0,0 +1,114 @@
+TwitterOAuth
+------------
+
+PHP library for working with Twitter's OAuth API.
+
+Flow Overview
+=============
+
+1. Build TwitterOAuth object using client credentials.
+2. Request temporary credentials from Twitter.
+3. Build authorize URL for Twitter.
+4. Redirect user to authorize URL.
+5. User authorizes access and returns from Twitter.
+6. Rebuild TwitterOAuth object with client credentials and temporary credentials.
+7. Get token credentials from Twitter.
+8. Rebuild TwitterOAuth object with client credentials and token credentials.
+9. Query Twitter API.
+
+Terminology
+===========
+
+The terminology has changed since 0.1.x to better match the draft-hammer-oauth IETF
+RFC. You can read that at http://tools.ietf.org/html/draft-hammer-oauth. Some of the
+terms will differ from those Twitter uses as well.
+
+client credentials - Consumer key/secret you get when registering an app with Twitter.
+temporary credentials - Previously known as the request token.
+token credentials - Previously known as the access token.
+
+Parameters
+==========
+
+There are a number of parameters you can modify after creating a TwitterOAuth object.
+
+Switch an existing TwitterOAuth install to use version 1.1 of the API.
+
+    $connection->$host = "https://api.twitter.com/1.1/";
+
+Custom useragent.
+
+    $connection->useragent = 'Custom useragent string';
+
+Verify Twitters SSL certificate.
+
+    $connection->ssl_verifypeer = TRUE;
+
+There are several more you can find in TwitterOAuth.php.
+
+Extended flow using example code
+================================
+
+To use TwitterOAuth with the Twitter API you need *TwitterOAuth.php*, *OAuth.php* and
+client credentials. You can get client credentials by registering your application at
+[dev.twitter.com/apps](https://dev.twitter.com/apps).
+
+Users start out on connect.php which displays the "Sign in with Twitter" image hyperlinked
+to redirect.php. This button should be displayed on your homepage in your login section. The
+client credentials are saved in config.php as `CONSUMER_KEY` and `CONSUMER_SECRET`. You can
+save a static callback URL in the app settings page, in the config file or use a dynamic
+callback URL later in step 2. In example use https://example.com/callback.php.
+
+1) When a user lands on redirect.php we build a new TwitterOAuth object using the client credentials.
+If you have your own configuration method feel free to use it instead of config.php.
+
+    $connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET); // Use config.php client credentials
+    $connection = new TwitterOAuth('abc890', '123xyz');
+
+2) Using the built $connection object you will ask Twitter for temporary credentials. The `oauth_callback` value is required.
+
+    $temporary_credentials = $connection->getRequestToken(OAUTH_CALLBACK); // Use config.php callback URL.
+
+3) Now that we have temporary credentials the user has to go to Twitter and authorize the app
+to access and updates their data. You can also pass a second parameter of FALSE to not use [Sign
+in with Twitter](https://dev.twitter.com/docs/auth/sign-twitter).
+
+    $redirect_url = $connection->getAuthorizeURL($temporary_credentials); // Use Sign in with Twitter
+    $redirect_url = $connection->getAuthorizeURL($temporary_credentials, FALSE);
+
+4) You will now have a Twitter URL that you must send the user to.
+
+    https://api.twitter.com/oauth/authenticate?oauth_token=xyz123
+
+5) The user is now on twitter.com and may have to login. Once authenticated with Twitter they will
+will either have to click on allow/deny, or will be automatically redirected back to the callback.
+
+6) Now that the user has returned to callback.php and allowed access we need to build a new
+TwitterOAuth object using the temporary credentials.
+
+    $connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $_SESSION['oauth_token'],
+    $_SESSION['oauth_token_secret']);
+
+7) Now we ask Twitter for long lasting token credentials. These are specific to the application
+and user and will act like password to make future requests. Normally the token credentials would
+get saved in your database but for this example we are just using sessions.
+
+    $token_credentials = $connection->getAccessToken($_REQUEST['oauth_verifier']);
+
+8) With the token credentials we build a new TwitterOAuth object.
+
+    $connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $token_credentials['oauth_token'],
+    $token_credentials['oauth_token_secret']);
+
+9) And finally we can make requests authenticated as the user. You can GET, POST, and DELETE API
+methods. Directly copy the path from the API documentation and add an array of any parameter
+you wish to include for the API method such as curser or in_reply_to_status_id.
+
+    $account = $connection->get('account/verify_credentials');
+    $status = $connection->post('statuses/update', array('status' => 'Text of status here', 'in_reply_to_status_id' => 123456));
+    $status = $connection->delete('statuses/destroy/12345');
+
+Contributors
+============
+
+* [Abraham Williams](https://twitter.com/abraham) - Main developer, current maintainer.

plugin/sns/twitter/_common.php

@@ -0,0 +1,3 @@
+<?php
+include_once("../../../common.php");
+?>

plugin/sns/twitter/callback-sample.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * @file
+ * Take the user when they return from Twitter. Get access tokens.
+ * Verify credentials and redirect to based on response from Twitter.
+ */
+
+/* Start session and load lib */
+session_start();
+require_once('twitteroauth/twitteroauth.php');
+require_once('config.php');
+
+/* If the oauth_token is old redirect to the connect page. */
+if (isset($_REQUEST['oauth_token']) && $_SESSION['oauth_token'] !== $_REQUEST['oauth_token']) {
+  $_SESSION['oauth_status'] = 'oldtoken';
+  header('Location: ./clearsessions.php');
+}
+
+/* Create TwitteroAuth object with app key/secret and token key/secret from default phase */
+$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $_SESSION['oauth_token'], $_SESSION['oauth_token_secret']);
+
+/* Request access tokens from twitter */
+$access_token = $connection->getAccessToken($_REQUEST['oauth_verifier']);
+
+/* Save the access tokens. Normally these would be saved in a database for future use. */
+$_SESSION['access_token'] = $access_token;
+
+/* Remove no longer needed request tokens */
+unset($_SESSION['oauth_token']);
+unset($_SESSION['oauth_token_secret']);
+
+/* If HTTP response is 200 continue otherwise send to connect page to retry */
+if (200 == $connection->http_code) {
+  /* The user has been verified and the access tokens can be saved for future use */
+  $_SESSION['status'] = 'verified';
+  header('Location: ./index.php');
+} else {
+  /* Save HTTP status for error dialog on connnect page.*/
+  header('Location: ./clearsessions.php');
+}

plugin/sns/twitter/callback.php

@@ -0,0 +1,86 @@
+<?php
+include_once("./_common.php");
+
+/**
+ * @file
+ * Take the user when they return from Twitter. Get access tokens.
+ * Verify credentials and redirect to based on response from Twitter.
+ */
+
+/* Start session and load lib */
+//session_start();
+require_once(G4_SNS_PATH.'/twitter/twitteroauth/twitteroauth.php');
+require_once(G4_SNS_PATH.'/twitter/twitterconfig.php');
+
+//print_r2($_SESSION); print_r2($_REQUEST); exit;
+
+/* If the oauth_token is old redirect to the connect page. */
+if (isset($_REQUEST['oauth_token']) && $_SESSION['oauth_token'] !== $_REQUEST['oauth_token']) {
+  $_SESSION['oauth_status'] = 'oldtoken';
+  header('Location: ./clearsessions.php');
+}
+
+/* Create TwitteroAuth object with app key/secret and token key/secret from default phase */
+$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $_SESSION['oauth_token'], $_SESSION['oauth_token_secret']);
+
+/* Request access tokens from twitter */
+$access_token = $connection->getAccessToken($_REQUEST['oauth_verifier']);
+
+/* Save the access tokens. Normally these would be saved in a database for future use. */
+$_SESSION['access_token'] = $access_token;
+
+/* Remove no longer needed request tokens */
+unset($_SESSION['oauth_token']);
+unset($_SESSION['oauth_token_secret']);
+
+/*
+if (200 == $connection->http_code) {
+  $_SESSION['status'] = 'verified';
+  header('Location: ./index.php');
+} else {
+  header('Location: ./clearsessions.php');
+}
+exit;
+*/
+
+$g4['title'] = '트위터 콜백';
+include_once(G4_PATH.'/head.sub.php');
+
+if (200 == $connection->http_code) {
+
+    $content    = $connection->get('account/verify_credentials');
+    $sns_name   = $content->name;
+    $g4_sns_url = G4_SNS_URL;
+
+    set_cookie('ck_sns_name', $sns_name, 86400);
+
+    echo <<<EOT
+    <script>
+    $(function() {
+        document.write("<strong>트위터에 승인이 되었습니다.</strong>");
+
+        var opener = window.opener;
+        opener.$("#wr_name").val("{$sns_name}");
+        opener.$("#twitter_icon").attr("src", "{$g4_sns_url}/icon/twitter.png");
+        opener.$("#twitter_checked").attr("disabled", false);
+        opener.$("#twitter_checked").attr("checked", true);
+        window.close();
+    });
+    </script>
+EOT;
+
+} else {
+
+    echo <<<EOT
+    <script>
+    $(function() {
+        alert("트위터에 승인이 되지 않았습니다.");
+        window.close();
+    });
+    </script>
+EOT;
+
+}
+
+include_once(G4_PATH.'/tail.sub.php');
+?>

plugin/sns/twitter/clearsessions.php

@@ -0,0 +1,14 @@
+<?php
+include_once("./_common.php");
+
+/**
+ * @file
+ * Clears PHP sessions and redirects to the connect page.
+ */
+ 
+/* Load and clear sessions */
+session_start();
+session_destroy();
+ 
+/* Redirect to page with the connect to Twitter option. */
+header('Location: ./connect.php');

plugin/sns/twitter/config-sample.php

@@ -0,0 +1,10 @@
+<?php
+
+/**
+ * @file
+ * A single location to store configuration.
+ */
+
+define('CONSUMER_KEY', 'CONSUMER_KEY_HERE');
+define('CONSUMER_SECRET', 'CONSUMER_SECRET_HERE');
+define('OAUTH_CALLBACK', 'http://example.com/twitteroauth/callback.php');

plugin/sns/twitter/connect.php

@@ -0,0 +1,22 @@
+<?php
+include_once("./_common.php");
+
+/**
+ * @file
+ * Check if consumer token is set and if so send user to get a request token.
+ */
+
+/**
+ * Exit with an error message if the CONSUMER_KEY or CONSUMER_SECRET is not defined.
+ */
+require_once(G4_SNS_PATH.'/twitter/twitterconfig.php');
+if (CONSUMER_KEY === '' || CONSUMER_SECRET === '' || CONSUMER_KEY === 'CONSUMER_KEY_HERE' || CONSUMER_SECRET === 'CONSUMER_SECRET_HERE') {
+  echo 'You need a consumer key and secret to test the sample code. Get one from <a href="https://dev.twitter.com/apps">dev.twitter.com/apps</a>';
+  exit;
+}
+
+/* Build an image link to start the redirect process. */
+$content = '<a href="./redirect.php"><img src="./images/lighter.png" alt="Sign in with Twitter"/></a>';
+ 
+/* Include HTML to display on the page. */
+include('html.inc');

plugin/sns/twitter/html.inc

@@ -0,0 +1,39 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+  <head>
+    <title>Twitter OAuth in PHP</title>
+    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+    <style type="text/css">
+      img {border-width: 0}
+      * {font-family:'Lucida Grande', sans-serif;}
+    </style>
+  </head>
+  <body>
+    <div>
+      <h2>Welcome to a Twitter OAuth PHP example.</h2>
+
+      <p>This site is a basic showcase of Twitters OAuth authentication method. If you are having issues try <a href='./clearsessions.php'>clearing your session</a>.</p>
+
+      <p>
+        Links:
+        <a href='http://github.com/abraham/twitteroauth'>Source Code</a> &amp;
+        <a href='http://wiki.github.com/abraham/twitteroauth/documentation'>Documentation</a> |
+        Contact @<a href='http://twitter.com/abraham'>abraham</a>
+      </p>
+      <hr />
+      <?php if (isset($menu)) { ?>
+        <?php echo $menu; ?>
+      <?php } ?>
+    </div>
+    <?php if (isset($status_text)) { ?>
+      <?php echo '<h3>'.$status_text.'</h3>'; ?>
+    <?php } ?>
+    <p>
+      <pre>
+        <?php print_r($content); ?>
+      </pre>
+    </p>
+
+  </body>
+</html>

plugin/sns/twitter/index.php

@@ -0,0 +1,35 @@
+<?php
+include_once("./_common.php");
+
+/**
+ * @file
+ * User has successfully authenticated with Twitter. Access tokens saved to session and DB.
+ */
+
+/* Load required lib files. */
+//session_start();
+require_once(G4_SNS_PATH.'/twitter/twitteroauth/twitteroauth.php');
+require_once(G4_SNS_PATH.'/twitter/twitterconfig.php');
+
+/* If access tokens are not available redirect to connect page. */
+if (empty($_SESSION['access_token']) || empty($_SESSION['access_token']['oauth_token']) || empty($_SESSION['access_token']['oauth_token_secret'])) {
+    header('Location: ./clearsessions.php');
+}
+/* Get user access tokens out of the session. */
+$access_token = $_SESSION['access_token'];
+
+/* Create a TwitterOauth object with consumer/user tokens. */
+$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET, $access_token['oauth_token'], $access_token['oauth_token_secret']);
+
+/* If method is set change API call made. Test is called by default. */
+$content = $connection->get('account/verify_credentials');
+
+/* Some example calls */
+//$connection->get('users/show', array('screen_name' => 'abraham'));
+//$connection->post('statuses/update', array('status' => date(DATE_RFC822)));
+//$connection->post('statuses/destroy', array('id' => 5437877770));
+//$connection->post('friendships/create', array('id' => 9436992));
+//$connection->post('friendships/destroy', array('id' => 9436992));
+
+/* Include HTML to display on the page */
+include('html.inc');

plugin/sns/twitter/redirect.php

@@ -0,0 +1,31 @@
+<?php
+include_once("./_common.php");
+
+/* Start session and load library. */
+//session_start();
+require_once(G4_SNS_PATH.'/twitter/twitteroauth/twitteroauth.php');
+require_once(G4_SNS_PATH.'/twitter/twitterconfig.php');
+
+/* Build TwitterOAuth object with client credentials. */
+$connection = new TwitterOAuth(CONSUMER_KEY, CONSUMER_SECRET);
+ 
+/* Get temporary credentials. */
+$request_token = $connection->getRequestToken(OAUTH_CALLBACK);
+
+/* Save temporary credentials to session. */
+$_SESSION['oauth_token'] = $token = $request_token['oauth_token'];
+$_SESSION['oauth_token_secret'] = $request_token['oauth_token_secret'];
+
+//print_r2($_SESSION); exit;
+ 
+/* If last connection failed don't display authorization link. */
+switch ($connection->http_code) {
+  case 200:
+    /* Build authorize URL and redirect user to Twitter. */
+    $url = $connection->getAuthorizeURL($token);
+    header('Location: ' . $url); 
+    break;
+  default:
+    /* Show notification if something went wrong. */
+    echo 'Could not connect to Twitter. Refresh the page or try again later.';
+}

plugin/sns/twitter/twitterconfig.php

@@ -0,0 +1,10 @@
+<?php
+/**
+ * @file
+ * A single location to store configuration.
+ */
+
+define('CONSUMER_KEY', $config['cf_twitter_key']);
+define('CONSUMER_SECRET', $config['cf_twitter_secret']);
+//define('OAUTH_CALLBACK', G4_SNS_URL.'/twitter/callback.php');
+define('OAUTH_CALLBACK', '');

plugin/sns/twitter/twitteroauth/OAuth.php

@@ -0,0 +1,872 @@
+<?php
+// vim: foldmethod=marker
+
+/* Generic exception class
+ */
+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 $secret;
+
+  /**
+   * key = the token
+   * secret = the token secret
+   */
+  function __construct($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);
+    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);
+
+    return base64_encode(hash_hmac('sha1', $base_string, $key, true));
+  }
+}
+
+/**
+ * The PLAINTEXT method does not provide any security protection and SHOULD only be used 
+ * over a secure channel such as HTTPS. It does not use the Signature Base String.
+ *   - Chapter 9.4 ("PLAINTEXT")
+ */
+class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
+  public function get_name() {
+    return "PLAINTEXT";
+  }
+
+  /**
+   * oauth_signature is set to the concatenated encoded values of the Consumer Secret and 
+   * Token Secret, separated by a '&' character (ASCII code 38), even if either secret is 
+   * empty. The result MUST be encoded again.
+   *   - Chapter 9.4.1 ("Generating Signatures")
+   *
+   * Please note that the second encoding MUST NOT happen in the SignatureMethod, as
+   * OAuthRequest handles this!
+   */
+  public function build_signature($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, $header_parameters);
+      }
+
+    }
+
+    return new OAuthRequest($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 $out;
+  }
+
+  /**
+   * builds the data one would send in a POST request
+   */
+  public function to_postdata() {
+    return OAuthUtil::build_http_query($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);
+    $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);
+  }
+}

plugin/sns/twitter/twitteroauth/twitteroauth.php

@@ -0,0 +1,241 @@
+<?php
+
+/*
+ * Abraham Williams (abraham@abrah.am) http://abrah.am
+ *
+ * The first PHP Library to support OAuth for Twitter's REST API.
+ */
+
+/* Load OAuth lib. You can find it at http://oauth.net */
+require_once('OAuth.php');
+
+/**
+ * Twitter OAuth class
+ */
+class TwitterOAuth {
+  /* Contains the last HTTP status code returned. */
+  public $http_code;
+  /* Contains the last API call. */
+  public $url;
+  /* Set up the API root URL. */
+  public $host = "https://api.twitter.com/1/";
+  /* Set timeout default. */
+  public $timeout = 30;
+  /* Set connect timeout. */
+  public $connecttimeout = 30; 
+  /* Verify SSL Cert. */
+  public $ssl_verifypeer = FALSE;
+  /* Respons format. */
+  public $format = 'json';
+  /* Decode returned json data. */
+  public $decode_json = TRUE;
+  /* Contains the last HTTP headers returned. */
+  public $http_info;
+  /* Set the useragnet. */
+  public $useragent = 'TwitterOAuth v0.2.0-beta2';
+  /* Immediately retry the API call if the response was not successful. */
+  //public $retry = TRUE;
+
+
+
+
+  /**
+   * Set API URLS
+   */
+  function accessTokenURL()  { return 'https://api.twitter.com/oauth/access_token'; }
+  function authenticateURL() { return 'https://api.twitter.com/oauth/authenticate'; }
+  function authorizeURL()    { return 'https://api.twitter.com/oauth/authorize'; }
+  function requestTokenURL() { return 'https://api.twitter.com/oauth/request_token'; }
+
+  /**
+   * Debug helpers
+   */
+  function lastStatusCode() { return $this->http_status; }
+  function lastAPICall() { return $this->last_api_call; }
+
+  /**
+   * construct TwitterOAuth object
+   */
+  function __construct($consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
+    $this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();
+    $this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
+    if (!empty($oauth_token) && !empty($oauth_token_secret)) {
+      $this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);
+    } else {
+      $this->token = NULL;
+    }
+  }
+
+
+  /**
+   * Get a request_token from Twitter
+   *
+   * @returns a key/value array containing oauth_token and oauth_token_secret
+   */
+  function getRequestToken($oauth_callback) {
+    $parameters = array();
+    $parameters['oauth_callback'] = $oauth_callback; 
+    $request = $this->oAuthRequest($this->requestTokenURL(), 'GET', $parameters);
+    $token = OAuthUtil::parse_parameters($request);
+    $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+    return $token;
+  }
+
+  /**
+   * Get the authorize URL
+   *
+   * @returns a string
+   */
+  function getAuthorizeURL($token, $sign_in_with_twitter = TRUE) {
+    if (is_array($token)) {
+      $token = $token['oauth_token'];
+    }
+    if (empty($sign_in_with_twitter)) {
+      return $this->authorizeURL() . "?oauth_token={$token}";
+    } else {
+       return $this->authenticateURL() . "?oauth_token={$token}";
+    }
+  }
+
+  /**
+   * Exchange request token and secret for an access token and
+   * secret, to sign API calls.
+   *
+   * @returns array("oauth_token" => "the-access-token",
+   *                "oauth_token_secret" => "the-access-secret",
+   *                "user_id" => "9436992",
+   *                "screen_name" => "abraham")
+   */
+  function getAccessToken($oauth_verifier) {
+    $parameters = array();
+    $parameters['oauth_verifier'] = $oauth_verifier;
+    $request = $this->oAuthRequest($this->accessTokenURL(), 'GET', $parameters);
+    $token = OAuthUtil::parse_parameters($request);
+    $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+    return $token;
+  }
+
+  /**
+   * One time exchange of username and password for access token and secret.
+   *
+   * @returns array("oauth_token" => "the-access-token",
+   *                "oauth_token_secret" => "the-access-secret",
+   *                "user_id" => "9436992",
+   *                "screen_name" => "abraham",
+   *                "x_auth_expires" => "0")
+   */  
+  function getXAuthToken($username, $password) {
+    $parameters = array();
+    $parameters['x_auth_username'] = $username;
+    $parameters['x_auth_password'] = $password;
+    $parameters['x_auth_mode'] = 'client_auth';
+    $request = $this->oAuthRequest($this->accessTokenURL(), 'POST', $parameters);
+    $token = OAuthUtil::parse_parameters($request);
+    $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+    return $token;
+  }
+
+  /**
+   * GET wrapper for oAuthRequest.
+   */
+  function get($url, $parameters = array()) {
+    $response = $this->oAuthRequest($url, 'GET', $parameters);
+    if ($this->format === 'json' && $this->decode_json) {
+      return json_decode($response);
+    }
+    return $response;
+  }
+  
+  /**
+   * POST wrapper for oAuthRequest.
+   */
+  function post($url, $parameters = array()) {
+    $response = $this->oAuthRequest($url, 'POST', $parameters);
+    if ($this->format === 'json' && $this->decode_json) {
+      return json_decode($response);
+    }
+    return $response;
+  }
+
+  /**
+   * DELETE wrapper for oAuthReqeust.
+   */
+  function delete($url, $parameters = array()) {
+    $response = $this->oAuthRequest($url, 'DELETE', $parameters);
+    if ($this->format === 'json' && $this->decode_json) {
+      return json_decode($response);
+    }
+    return $response;
+  }
+
+  /**
+   * Format and sign an OAuth / API request
+   */
+  function oAuthRequest($url, $method, $parameters) {
+    if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0) {
+      $url = "{$this->host}{$url}.{$this->format}";
+    }
+    $request = OAuthRequest::from_consumer_and_token($this->consumer, $this->token, $method, $url, $parameters);
+    $request->sign_request($this->sha1_method, $this->consumer, $this->token);
+    switch ($method) {
+    case 'GET':
+      return $this->http($request->to_url(), 'GET');
+    default:
+      return $this->http($request->get_normalized_http_url(), $method, $request->to_postdata());
+    }
+  }
+
+  /**
+   * Make an HTTP request
+   *
+   * @return API results
+   */
+  function http($url, $method, $postfields = NULL) {
+    $this->http_info = array();
+    $ci = curl_init();
+    /* Curl settings */
+    curl_setopt($ci, CURLOPT_USERAGENT, $this->useragent);
+    curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
+    curl_setopt($ci, CURLOPT_TIMEOUT, $this->timeout);
+    curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
+    curl_setopt($ci, CURLOPT_HTTPHEADER, array('Expect:'));
+    curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
+    curl_setopt($ci, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
+    curl_setopt($ci, CURLOPT_HEADER, FALSE);
+
+    switch ($method) {
+      case 'POST':
+        curl_setopt($ci, CURLOPT_POST, TRUE);
+        if (!empty($postfields)) {
+          curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
+        }
+        break;
+      case 'DELETE':
+        curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
+        if (!empty($postfields)) {
+          $url = "{$url}?{$postfields}";
+        }
+    }
+
+    curl_setopt($ci, CURLOPT_URL, $url);
+    $response = curl_exec($ci);
+    $this->http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
+    $this->http_info = array_merge($this->http_info, curl_getinfo($ci));
+    $this->url = $url;
+    curl_close ($ci);
+    return $response;
+  }
+
+  /**
+   * Get the header info to store.
+   */
+  function getHeader($ch, $header) {
+    $i = strpos($header, ':');
+    if (!empty($i)) {
+      $key = str_replace('-', '_', strtolower(substr($header, 0, $i)));
+      $value = trim(substr($header, $i + 2));
+      $this->http_header[$key] = $value;
+    }
+    return strlen($header);
+  }
+}