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POHttpClient 4.2.2 and proxy with username/password
 

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  1. POHttpClient 4.2.2 and proxy with username/password
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    <p>I have a problem with HttpClient 4.2.2 and proxy with username/password. HttpClient works in this way:</p> <ol> <li>List item</li> <li>Send request without proxy stuff (however I set proxy parameters for each request)</li> <li>Get response from Squid with 407 error</li> <li>Send request with proxy stuff</li> </ol> <p>It's very strange behavior, Is it possible to add info about proxy to each request? I've tried to add hardcoded "Proxy-Authorization" header to each request and it works fine, why HttpClient can't do the same?</p> <p><strong>Java code</strong></p> <pre><code>DefaultHttpClient httpClient = new DefaultHttpClient(); httpClient.getParams().setParameter(PROTOCOL_VERSION, HTTP_1_1); ... String proxyServer = getProxyServer(); int proxyPort = getProxyPort(); List&lt;String&gt; authpref = new ArrayList&lt;String&gt;(); authpref.add(AuthPolicy.BASIC); httpClient.getParams().setParameter(AuthPNames.PROXY_AUTH_PREF, authpref); String proxyUser = getProxyUser(); String proxyPassword = getProxyPassword(); CredentialsProvider credsProvider = httpClient.getCredentialsProvider(); credsProvider.setCredentials(new AuthScope(proxyServer, proxyPort), new UsernamePasswordCredentials(proxyUser, proxyPassword)); httpClient.setCredentialsProvider(credsProvider); HttpHost proxy = new HttpHost(proxyServer, proxyPort, (proxyServer.indexOf("https") != 0) ? "http" : "https"); httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy); ... HttpPut put = new HttpPut(url); /*** hardcoded header ***/ //put.addHeader("Proxy-Authorization", "Basic eHRlbmR4LmRuZXByOnF3ZXJ0eQ=="); /*** hardcoded header ***/ put.setEntity(entity); httpClient.execute(put); httpClient.getConnectionManager().shutdown(); [DefaultClientConnection] Sending request: PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg HTTP/1.1 [headers] &gt;&gt; PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg HTTP/1.1 [headers] &gt;&gt; Authorization: Basic eGRldjo0YTFmNmMwOTgyYWRkMWQ0NDg1YjRhMGE4YWMxY2JjMWNiMTA0ODc1 [headers] &gt;&gt; Content-Length: 2 [headers] &gt;&gt; Host: 172.26.27.22:8080 [headers] &gt;&gt; Proxy-Connection: Keep-Alive [headers] &gt;&gt; User-Agent: Apache-HttpClient/4.2.2 (java 1.5) [DefaultClientConnection] Receiving response: HTTP/1.0 407 Proxy Authentication Required [headers] &lt;&lt; HTTP/1.0 407 Proxy Authentication Required [headers] &lt;&lt; Server: squid/2.7.STABLE8 [headers] &lt;&lt; Date: Thu, 08 Nov 2012 10:09:49 GMT [headers] &lt;&lt; Content-Type: text/html [headers] &lt;&lt; Content-Length: 1431 [headers] &lt;&lt; X-Squid-Error: ERR_CACHE_ACCESS_DENIED 0 [headers] &lt;&lt; Proxy-Authenticate: Basic realm="Please, enter username and password" [headers] &lt;&lt; X-Cache: MISS from 172.26.27.94 [headers] &lt;&lt; X-Cache-Lookup: NONE from 172.26.27.94:3128 [headers] &lt;&lt; Via: 1.0 172.26.27.94:3128 (squid/2.7.STABLE8) [headers] &lt;&lt; Connection: close [DefaultHttpClient] Authentication required [DefaultHttpClient] 172.26.27.94:3128 requested authentication [ProxyAuthenticationStrategy] Authentication schemes in the order of preference: [Basic] [DefaultHttpClient] Selected authentication options: [BASIC] [DefaultClientConnection] Connection 0.0.0.0:63344&lt;-&gt;172.26.27.94:3128 closed [DefaultClientConnectionOperator] Connecting to 172.26.27.94:3128 [RequestAddCookies] CookieSpec selected: best-match [RequestAuthCache] Re-using cached 'basic' auth scheme for http://172.26.27.22:8080 [RequestAuthCache] No credentials for preemptive authentication [RequestProxyAuthentication] Proxy auth state: CHALLENGED [RequestProxyAuthentication] Generating response to an authentication challenge using basic scheme [DefaultHttpClient] Attempt 2 to execute request [DefaultClientConnection] Sending request: PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg HTTP/1.1 [headers] &gt;&gt; PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg HTTP/1.1 [headers] &gt;&gt; Authorization: Basic eGRldjo0YTFmNmMwOTgyYWRkMWQ0NDg1YjRhMGE4YWMxY2JjMWNiMTA0ODc1 [headers] &gt;&gt; Content-Length: 2 [headers] &gt;&gt; Host: 172.26.27.22:8080 [headers] &gt;&gt; Proxy-Connection: Keep-Alive [headers] &gt;&gt; User-Agent: Apache-HttpClient/4.2.2 (java 1.5) [headers] &gt;&gt; Proxy-Authorization: Basic eHRlbmR4LmRuZXByOnF3ZXJ0eQ== [DefaultClientConnection] Receiving response: HTTP/1.0 201 Created [headers] &lt;&lt; HTTP/1.0 201 Created [headers] &lt;&lt; Content-Length: 0 [headers] &lt;&lt; Date: Thu, 08 Nov 2012 10:09:49 GMT [headers] &lt;&lt; X-Cache: MISS from 172.26.27.94 [headers] &lt;&lt; X-Cache-Lookup: MISS from 172.26.27.94:3128 [headers] &lt;&lt; Via: 1.1 172.26.27.94:3128 (squid/2.7.STABLE8) [headers] &lt;&lt; Connection: keep-alive [headers] &lt;&lt; Proxy-Connection: keep-alive </code></pre> <p><em>Squid log</em></p> <pre><code>1352370666.778 0 172.26.27.94 TCP_DENIED/407 1870 PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg - NONE/- text/html 1352370671.429 8 172.26.27.94 TCP_MISS/201 282 PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg proxyuser DIRECT/172.26.27.22 - 1352370671.474 0 172.26.27.94 TCP_DENIED/407 1882 PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image2.jpg - NONE/- text/html 1352370671.486 7 172.26.27.94 TCP_MISS/201 282 PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image2.jpg proxyuser DIRECT/172.26.27.22 - </code></pre> <p><strong>With hardcoded header</strong></p> <p>There is no 407 error in the java log, and squid log</p> <p><em>Squid log</em></p> <pre><code>1352370542.016 8 172.26.27.94 TCP_MISS/201 282 PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image1.jpg proxyuser DIRECT/172.26.27.22 - 1352370542.033 7 172.26.27.94 TCP_MISS/201 282 PUT http://172.26.27.22:8080/myapp/rest/2/3/29/image2.jpg proxyuser DIRECT/172.26.27.22 - </code></pre>
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