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[英]Apache HttpComponents does not follow redirect request despite setting
[英]cURL works, but an identical request in Apache's HttpComponents library does not?
在這個小問題上,我好幾天都在扯頭發。 希望在這里的人可以發現我的錯誤(因為我確定這是對的),並就如何糾正該錯誤給了我幾點。 如果我的解釋失敗,請告訴我,我將嘗試以更簡潔的方式重寫它。
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背景知識:作為一個小型項目的一部分,我一直在編寫Java應用程序以監視瀏覽器內游戲發出的聊天和事件數據(以供參考; 《命令與征服:泰伯利亞聯盟》 )。 令人遺憾的是,關於它們的Web服務如何工作的文檔並不多,但是我設法整理了一系列請求(基於監視網絡流量和其他開發人員發布的代碼示例)來處理登錄等。
一個特定的請求絕對拒絕完成,並且Java在暫停30秒后拋出連接重置異常。 以下是此特定請求的連接日志。
2014/03/25 11:17:16:703 EDT [DEBUG] RequestAddCookies - CookieSpec selected: best-match
2014/03/25 11:17:16:703 EDT [DEBUG] RequestAuthCache - Auth cache not set in the context
2014/03/25 11:17:16:703 EDT [DEBUG] PoolingHttpClientConnectionManager - Connection request: [route: {s}->https://gamecdnorigin.alliances.commandandconquer.com:443][total kept alive: 1; route allocated: 0 of 2; total allocated: 1 of 20]
2014/03/25 11:17:16:703 EDT [DEBUG] PoolingHttpClientConnectionManager - Connection leased: [id: 2][route: {s}->https://gamecdnorigin.alliances.commandandconquer.com:443][total kept alive: 1; route allocated: 1 of 2; total allocated: 2 of 20]
2014/03/25 11:17:16:703 EDT [DEBUG] MainClientExec - Opening connection {s}->https://gamecdnorigin.alliances.commandandconquer.com:443
2014/03/25 11:17:16:755 EDT [DEBUG] HttpClientConnectionOperator - Connecting to gamecdnorigin.alliances.commandandconquer.com/212.100.228.211:443
*snip: 30 seconds of junk output*
2014/03/25 11:18:16:992 EDT [DEBUG] DefaultManagedHttpClientConnection - http-outgoing-2: Shutdown connection
2014/03/25 11:18:16:992 EDT [DEBUG] MainClientExec - Connection discarded
2014/03/25 11:18:16:993 EDT [DEBUG] DefaultManagedHttpClientConnection - http-outgoing-2: Close connection
2014/03/25 11:18:16:993 EDT [DEBUG] PoolingHttpClientConnectionManager - Connection released: [id: 2][route: {s}->https://gamecdnorigin.alliances.commandandconquer.com:443][total kept alive: 1; route allocated: 0 of 2; total allocated: 1 of 20]
2014/03/25 11:18:16:993 EDT [INFO] RetryExec - I/O exception (java.net.SocketException) caught when processing request to {s}->https://gamecdnorigin.alliances.commandandconquer.com:443: Connection reset
2014/03/25 11:18:16:993 EDT [DEBUG] RetryExec - Connection reset <java.net.SocketException: Connection reset>java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:189)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
at sun.security.ssl.InputRecord.read(InputRecord.java:503)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:954)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:275)
at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:254)
at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:117)
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:314)
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
*snip: lots of extra backtrace*
很多,我知道:/
奇怪的是,使用PHP的cURL運行EXACT相同的請求就可以了,我得到了我期望得到的信息。 以下是發送失敗請求的Java和成功完成的PHP的代碼段。
Java的:
public static boolean loadWorlds(Session session) {
HttpPost post = new HttpPost("https://gamecdnorigin.alliances.commandandconquer.com/Farm/Service.svc/ajaxEndpoint/GetOriginAccountInfo");
HttpEntity entity = new StringEntity(String.format("{\"session\":\"%s\"}", session.getId()), ContentType.APPLICATION_JSON);
post.setHeader("Content-Type", "application/json; charset=utf-8");
post.setHeader("X-Qooxdoo-Response-Type", "application/json");
post.setHeader("Cache-Control", "no-cache");
post.setHeader("Pragma", "no-cache");
post.setEntity(entity);
try {
CloseableHttpResponse resp = ApiCommunicator.getHttpClient().execute(post);
System.out.println(EntityUtils.toString(resp.getEntity()));
} catch (Exception e) {
e.printStackTrace();
}
return true;
}
通過PHP的cURL:
<?php
$cookie = 'cookies/' . md5($user) . '.txt';
$data = array(
'session' => 'hidden :P'
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://gamecdnorigin.alliances.commandandconquer.com/Farm/Service.svc/ajaxEndpoint/GetOriginAccountInfo');
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
"Content-Type: application/json; charset=utf-8",
"Cache-Control: no-cache",
"Pragma: no-cache",
"X-Qooxdoo-Response-Type: application/json"
));
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie);
$result = curl_exec($ch);
?>
為了使這篇文章盡可能的短(因為它已經是一長段痛苦的文字了),我稍微重寫了PHP以顯示$ cookie和$ data的值,因為這兩個值都在腳本的執行中進行了設置。
任何幫助將不勝感激。 我不知道HttpComponents是否向請求中添加或刪除標頭數據(從字面上我剛剛在兩天前就開始學習該項目時才開始學習該庫),cURL不會。 如有必要,我可以發布更多代碼示例,因為該項目中除了“我的個人登錄名/會話信息”是從服務器返回的東西外,沒有什么是真正的“秘密”。 另外,這是我第一次來D:因此,如果我沒有正確格式化某些內容,或者代碼片段未突出顯示,請告訴我,我會盡力解決的:)
嘗試通過關閉獲得的Closable實例來關閉基礎連接。
CloseableHttpResponse resp = ApiCommunicator.getHttpClient().execute(post);
try {
System.out.println(EntityUtils.toString(resp.getEntity()));
} catch (Exception e) {
e.printStackTrace();
}
finally{
resp.close();
}
我建議使用命令行選項-Djavax.net.debug = ssl運行Java客戶端,因為這將使您對SSL握手有更多(但含糊)的見解。 這應該可以說明潛在的連接問題,但是可能需要一些時間來了解此調試日志將輸出的詳細信息。 http://www.smartjava.org/content/how-analyze-java-ssl-errors提供了有關SSL握手的非常詳盡的討論。
您的HTTPClient沒有定義良好的SSLContext似乎是合理的。 您可以探索使用其中一些選項來創建它。
SSLContext sslContext = SSLContexts.createDefault();
SSLConnectionSocketFactory sslSocketFactory = new SSLConnectionSocketFactory(sslContext, SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(sslSocketFactory).build();
請注意,您還可以從SSLContexts.custom()創建自定義SSLContext,從而可以添加密鑰庫,信任庫並使用TLS指定。
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