我正在尝试编写一些C＃代码，这些代码将在PC上登录Battlefield 3的Battlelog。我找到了一个用PHP编写的开源API，但是当我把它翻译成C＃时，它并不是很有效。我使用fiddler确保标头匹配，两个请求看起来都一样，但C＃app不会返回任何像pc浏览器那样的cookie。另外，无论如何要告诉您何时将表单发布到网站上的查询字符串ID以及值？我在fiddler中找不到它，只是标题。这是我的代码：
//LOGIN
string formUrl = "https://battlelog.battlefield.com/bf3/gate/login/"; // NOTE: This is the URL the form POSTs to, not the URL of the form (you can find this in the "action" attribute of the HTML's form tag
string formParams = string.Format("email={0}&password={1}&submit={2}&redirect={3}", "TEST@TEST.com", "PASS", "Sign in","|bf3|");
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(formUrl);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
byte[] bytes = UTF8Encoding.UTF8.GetBytes(formParams);
//ADD THE HEADERS
((HttpWebRequest)req).UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.106 Safari/535.2";
((HttpWebRequest)req).Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
((HttpWebRequest)req).Referer = "http://battlelog.battlefield.com/bf3/gate/";
req.Headers.Add("Accept-Encoding", "gzip,deflate,sdch");
req.Headers.Add("Cache-Control", "max-age=0");
req.Headers.Add("Accept-Language", "en-us,en;q=0.8");
req.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.3");
using (Stream os = req.GetRequestStream())
{
os.Write(bytes, 0, bytes.Length);
}
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
((HttpWebRequest)req).CookieContainer = new CookieContainer();
((HttpWebRequest)req).CookieContainer.Add(resp.Cookies);
这是开源php，如果它有帮助
/**
* Battlelog API
*
* This API allows for the grabbing of Battlefield 3 player stats.
* Note: It seems a valid EA login is still required to pull down
* data...
*
* For examples, updates and additional information, see the project page
* at http://www.blakeharley.com/projects/battlelogapi/.
*
* @author Blake Harley <contact@blakeharley.com>
* @version 1.3
* @package BattlelogApi
* @copyright Copyright (c) 2011, Blake Harley
* @license http://creativecommons.org/licenses/by/3.0/
* @since 1.0-beta
*/
require_once 'BF3Container.class.php';
require_once 'BattlelogLang.inc.php';
require_once 'BF3Soldier.class.php';
require_once 'BF3Server.class.php';
/**
* This is where the cookies will be stored while connecting with the Battlelog
* servers. Make sure PHP has read and write access to the file location.
*
* @package BattlelogApi
* @var string
* @since 1.0-beta
*/
define('BLA_COOKIE_FILE', 'cookies.txt');
/**
* You can change this is you want. Some user agents have been blocked, so it's
* best to stick with impersonating a real browser.
* For the curious, the current user agent is Mozilla Firefox 6.0.2 on Windows 7 64-bit.
*
* @package BattlelogApi
* @var string
* @since 1.2-pre
*/
define('BLA_USER_AGENT', 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2');
/**
* You probably shouldn't touch this.
*
* @package BattlelogApi
* @var string
* @since 1.0-beta
*/
define('BLA_LOGIN_URL', 'https://battlelog.battlefield.com/bf3/gate/login/');
/**
* This class is the main accessor for the stats engine.
*
* Example:
* <code>
* $battlelog = new BattlelogApi('player@email.com', 'p4ssword');
* $jones = $battlelog->getBF3Player('123456789');
* echo $jones->getScorePerMinute();
* </code>
*
* @author Blake Harley <contact@blakeharley.com>
* @package BattlelogApi
* @since 1.0-beta
*/
class BattlelogApi
{
/**
* @access private
* @var string
* @since 1.0-beta
*/
private $_username = null;
/**
* @access private
* @var string
* @since 1.0-beta
*/
private $_password = null;
/**
* @access private
* @var bool
* @since 1.0-beta
*/
private $_hasCredentials = false;
/**
* @access private
* @var BattlelogLang
* @since 1.3
*/
private $_lang = null;
/**
* Stores the EA credentials so accounts can be scraped.
*
* @access public
* @param string $username The EA account name
* @param string $password The EA account password
* @param string $lang The language to use for the translator (experimental)
* @since 1.0-beta
*/
public function __construct($username, $password, $lang = null)
{
$this->_username = (string) $username;
$this->_password = (string) $password;
$this->_lang = new BattlelogLang($this, $lang);
}
/**
* Creates and returns a BF3Soldier using the given soldier's
* ID.
*
* @access public
* @param string $soldierId The ID of the soldier
* @return BF3Solider The requested soldier
* @since 1.0-beta
*/
public function getBF3Soldier($soldierId)
{
return new BF3Soldier($this, $soldierId, true);
}
/**
* Creates and returns a BF3Server using the given server's
* ID.
*
* @access public
* @param string $serverId The ID of the server
* @return BF3Server The requested server
* @since 1.3
*/
public function getBF3Server($serverId)
{
return new BF3Server($this, $serverId, true);
}
/**
* Uses the current session to get the text on the given url.
*
* @access public
* @param string $url The url to grab data from
* @param bool $battlelog Whether or not this use is a subportion of 'http://battlelog.battlefield.com/' and needs the cookies
* @return string The contents of the given url
* @since 1.3
*/
public function getUrl($url, $battlelog = true)
{
if (!$this->_hasCredentials)
{
$this->_getCredentials();
$this->_hasCredentials = true;
}
if ($battlelog === true)
{
$ch = curl_init("http://battlelog.battlefield.com/$url");
curl_setopt($ch, CURLOPT_COOKIEFILE, BLA_COOKIE_FILE);
}
else
{
$ch = curl_init($url);
}
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Expect:',
'User-Agent: ' . BLA_USER_AGENT,
'Accept: */*',
'Accept-Language: en-us,en;q=0.5',
'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'X-Requested-With: XMLHttpRequest',
'X-AjaxNavigation: 1'
));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_ENCODING, "gzip");
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
/**
* Gets credentials required the connect to the Battlelog servers.
*
* @access private
* @since 1.0-beta
*/
private function _getCredentials()
{
$postchars = http_build_query(array(
'redirect' => '|bf3|',
'email' => $this->_username,
'password' => $this->_password,
'submit' => 'Sign+in'
), '', '&');
$ch = curl_init(BLA_LOGIN_URL);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Expect:',
'User-Agent: ' . BLA_USER_AGENT,
'Accept: */*',
'Accept-Language: en-us,en;q=0.5',
'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7'
));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, BLA_COOKIE_FILE);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postchars);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_exec($ch);
curl_close($ch);
}
/**
* Runs the given nameplate through the BF3 locale file to get the
* actual name of the item.
*
* @access public
* @param string $string The nameplate to run through the translator
* @return mixed The translated id
* @since 1.3
*/
public function translate($string)
{
return $this->_lang[$string];
}
}
/**
* Provides common utility methods for miscellaneous battlelog things.
*
* @author Blake Harley <contact@blakeharley.com>
* @package BattlelogApi
* @since 1.0-beta
*/
class BattlelogUtils
{
/**
* Returns the URL of a rank from the Battlelog CDN.
*
* @param string $size The desired image size. Valid sizes are 'tiny', 'small', 'medium' and 'large'. Default size is small.
* @since 1.0-beta
*/
public static function getRankImage($rank, $size = 'small')
{
$validSizes = array('tiny', 'small', 'medium', 'large');
$size = strtolower($size);
if (!in_array($size, $validSizes))
{
throw new BattlelogException("Invalid size '$size' specified");
}
return "http://battlelog-cdn.battlefield.com/public/profile/bf3/stats/ranks/$size/r$rank.png";
}
/**
* Returns the URL of a kit image from the Battlelog CDN.
*
* @param string $kit The kit name. Valid kit names are 'assault', 'support', 'engineer', 'recon'.
* @param string $team The team designation. Valid teams are 'us' and 'ru'. Defaults to 'us'.
* @param string $size The image size. Valid image sizes are 'small', 'medium' and 'large'.
* @since 1.0-beta
*/
public static function getKitImage($kit, $team = 'us', $size = 'medium')
{
$validKits = array('assault', 'recon', 'engineer', 'support');
$validTeams = array('us', 'ru');
$validSizes = array('small', 'medium', 'large');
$kit = strtolower($kit);
$team = strtolower($team);
$size = strtolower($size);
if (!in_array($kit, $validKits))
{
throw new BattlelogException("Invalid kit '$kit' specified");
}
if (!in_array($team, $validTeams))
{
throw new BattlelogException("Invalid team '$team' specified");
}
if (!in_array($size, $validSizes))
{
throw new BattlelogException("Invalid size '$size' specified");
}
return "http://battlelog-cdn.battlefield.com/public/profile/kits/{$size[0]}/bf3-$team-$kit.png";
}
/**
* Returns the URL of a ribbon image from the Battlelog CDN.
*
* @param string|int $id The ribbon id.
* @param string $size The image size. Valid image sizes are 'small', 'medium' and 'large'.
* @since 1.0-beta
*/
public static function getRibbonImage($id, $size = 'medium')
{
$validSizes = array('small', 'medium', 'large');
$size = strtolower($size);
if (!in_array($size, $validSizes))
{
throw new BattlelogException("Invalid size '$size' specified");
}
$id = str_pad($id, 2, '0', STR_PAD_LEFT);
return "http://battlelog-cdn.battlefield.com/public/profile/bf3/stats/ribbons/{$size[0]}/r$id.png";
}
/**
* Returns the URL of a medal image from the Battlelog CDN.
*
* @param string|int $id The medal id.
* @param string $size The image size. Valid image sizes are 'small', 'medium' and 'large'.
* @since 1.3
*/
public static function getMedalImage($id, $size = 'medium')
{
$validSizes = array('small', 'medium', 'large');
$size = strtolower($size);
if (!in_array($size, $validSizes))
{
throw new BattlelogException("Invalid size '$size' specified");
}
$id = str_pad($id, 2, '0', STR_PAD_LEFT);
return "http://battlelog-cdn.battlefield.com/public/profile/bf3/stats/medals/{$size[0]}/m$id.png";
}
/**
* Returns the URL of an item image from the Battlelog CDN.
*
* @param string $name The item name
* @param string $size The image size. Valid sizes are 'tiny', 'small', 'medium' and 'large'. Default size is medium.
* @since 1.0-beta
*/
public static function getItemImage($name, $size = 'medium')
{
$validSizes = array(
'tiny' => '79x43',
'small' => '90x54',
'medium' => '147x88',
'large' => '512x308'
);
$size = strtolower($size);
if (!array_key_exists($size, $validSizes))
{
throw new BattlelogException("Invalid size '$size' specified");
}
$name = strtolower($name);
return "http://battlelog-cdn.battlefield.com/public/profile/bf3/stats/items_{$validSizes[$size]}/$name.png";
}
}
/**
* Part of my efforts to produce proper error messages.
*
* @author Blake Harley <contact@blakeharley.com>
* @package BattlelogApi
* @since 1.3
*/
class BattlelogException extends Exception { }
我非常感谢任何帮助！谢谢你的时间！
答案 0 :(得分：2)
我认为您必须在调用getResponse之前将CookieContainer添加到请求中。
根据MSDN： 默认情况下，CookieContainer是一个空引用（在Visual Basic中为Nothing）。您必须为该属性分配一个CookieContainer实例，以便在GetResponse返回的HttpWebResponse的Cookies属性中返回Cookie。
http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.cookiecontainer.aspx
在您的示例代码中，您将CookieContainer添加到已经发送到服务器的请求之后。
答案 1 :(得分：0)
两件事。
1），就像@Bradley一样，Uffner说你需要在 发送请求之前在请求本身 上初始化CookieContainer：
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(formUrl);
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
//Init cookie container
req.CookieContainer = new CookieContainer();
2），我不知道登录成功后会发生什么，但登录失败后不会返回任何cookie。我已经在代码中以及通过原始HTTP标头验证了这一点。
以下是针对Google的一个简化的概念证明，对我来说，它会返回2个Cookie：
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("https://www.google.com/");
req.Method = WebRequestMethods.Http.Get;
req.CookieContainer = new CookieContainer();
req.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.106 Safari/535.2";
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
Console.WriteLine(resp.Cookies.Count);