错误“HTTP/1.1 401 未经授权”，在 android 中使用基本身份验证 - EWS 2010
2022-09-02 01:57:04
我参考此链接来请求服务器。问题是有时（并不总是，大约20% - 30%，意味着有时我可以得到成功的响应），我得到了401错误和服务器响应基本授权挑战预期，但没有找到。
这是我的代码：
HttpRequestInterceptor preemptiveAuth = new HttpRequestInterceptor()
{
public void process(final HttpRequest request, final HttpContext context)
throws HttpException, IOException
{
AuthState authState = (AuthState) context
.getAttribute(ClientContext.TARGET_AUTH_STATE);
CredentialsProvider credsProvider = (CredentialsProvider) context
.getAttribute(ClientContext.CREDS_PROVIDER);
HttpHost targetHost = (HttpHost) context
.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
if (authState.getAuthScheme() == null)
{
AuthScope authScope = new AuthScope(targetHost.getHostName(),
targetHost.getPort());
Credentials creds = credsProvider.getCredentials(authScope);
if (creds != null)
{
authState.setAuthScheme(new BasicScheme());
authState.setCredentials(creds);
}
}
}
};
这是我的身份验证：
HttpPost httpPost = new HttpPost(SERVER_AUTH_URL);
httpPost.setHeader("Content-type", "text/xml; charset=utf-8");
httpPost.setHeader("Keep-Alive", "300");
httpPost.setHeader("Connection", "Keep-Alive");
StringEntity se = new StringEntity(myRequest, "UTF-8");
httpPost.setEntity(se);
se.setContentType("text/xml");
se.setContentEncoding("gzip,deflate");
//add preemptiveAuth
client.addRequestInterceptor(preemptiveAuth, 0);
//Set the proxy
ProxySelectorRoutePlanner routePlanner = new ProxySelectorRoutePlanner(
client.getConnectionManager().getSchemeRegistry(),
ProxySelector.getDefault());
client.setRoutePlanner(routePlanner);
List<String> authPrefs = new ArrayList<String>();
authPrefs.add(AuthPolicy.BASIC);
authPrefs.add(AuthPolicy.NTLM);
authPrefs.add(AuthPolicy.DIGEST);
client.getParams().setParameter("http.auth.scheme-priority", authPrefs);
CredentialsProvider credProvider = new BasicCredentialsProvider();
// client.getParams().setParameter("http.auth.scheme-priority",
// authPrefs);
credProvider.setCredentials(AuthScope.ANY,
new NTCredentials(getUsername(), getPassword(),
"", getDomain()));
Log.d(TAG, "repair excute");
client.setCredentialsProvider(credProvider);
HttpResponse response = client.execute(httpPost);
Log.d(TAG, "has excute");
从注释代码中，您可以看到我尝试了许多方法，但错误并没有消失。这里是logcat说的：
05-02 10:28:21.724: D/dalvikvm(1169): GC_FOR_MALLOC freed 11259 objects / 457352 bytes in 43ms
05-02 10:28:22.384: D/MainActivity(1169): repair excute
05-02 10:28:22.744: D/dalvikvm(1169): GC_FOR_MALLOC freed 11481 objects / 447264 bytes in 67ms
05-02 10:28:22.894: D/dalvikvm(1169): GC_FOR_MALLOC freed 1078 objects / 83928 bytes in 76ms
05-02 10:28:22.894: I/dalvikvm-heap(1169): Grow heap (frag case) to 3.833MB for 87396-byte allocation
05-02 10:28:23.034: D/dalvikvm(1169): GC_FOR_MALLOC freed 58 objects / 3336 bytes in 143ms
05-02 10:28:23.124: W/DefaultRequestDirector(1169): Authentication error: basic authorization challenge expected, but not found
05-02 10:28:23.124: D/MainActivity(1169): has excute
05-02 10:28:23.124: E/MainActivity(1169): response error: HTTP/1.1 401 Unauthorized
所以，请告诉我我的问题在哪里。提前致谢。
更新：目标服务器是 Exchange Web Service 2010。出于某种原因，我不想使用EWS API，我提出了自己的xml请求来连接到服务器（这个xml请求工作正常）。
这是请求失败时来自服务器的响应标头：
Server Microsoft-IIS/7.5
WWW-Authenticate Negotiate
WWW-Authenticate NTLM
X-Powered-By ASP.NET
Date Fri, 25 May 2012 03:47:57 GMT
Content-Length 0
首次请求成功时：
Cache-Control private
Transfer-Encoding chunked
Content-Type text/xml; charset=utf-8
Server Microsoft-IIS/7.5
Set-Cookie exchangecookie=1d9d9b1d21064035ad375c8aecde2168; expires=Sat, 25-May-2013 04:00:46 GMT; path=/; HttpOnly
X-AspNet-Version 2.0.50727
X-Powered-By ASP.NET
Date Fri, 25 May 2012 04:00:45 GMT
和第二次：
Cache-Control private
Transfer-Encoding chunked
Content-Type text/xml; charset=utf-8
Server Microsoft-IIS/7.5
X-EwsPerformanceData RpcC=4;RpcL=0;LdapC=0;LdapL=0;
X-AspNet-Version 2.0.50727
X-Powered-By ASP.NET
Date Fri, 25 May 2012 04:00:47 GMT
饼干是我的问题，不是吗？
