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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HTTPCLIENT-1113) Error downloading text file with gzip content encoding
Date Wed, 03 Aug 2011 11:36:27 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-1113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Oleg Kalnichevski updated HTTPCLIENT-1113:
------------------------------------------

         Priority: Major  (was: Critical)
    Fix Version/s: 4.1.2

This is a duplicate of HTTPCLIENT-1075.

Oleg

> Error downloading text file with gzip content encoding
> ------------------------------------------------------
>
>                 Key: HTTPCLIENT-1113
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1113
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.1.1
>         Environment: Ubuntu, Java 1.5
>            Reporter: Peter Lancaster
>              Labels: gzip
>             Fix For: 4.1.2
>
>
> Hello I am getting an exception when I try to download certain files.
> I don't have control over the host server, only the client.  Here's my client code:
> 		HttpParams params = new BasicHttpParams();
> 		params.setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 300000L);
> 		params.setParameter(ClientPNames.HANDLE_REDIRECTS, true);
> 		// This client indicates to servers that it will support 'gzip'
> 		// and 'deflate' compressed responses.
> 		ContentEncodingHttpClient.setDefaultHttpParams(params);
> 		ContentEncodingHttpClient client = new ContentEncodingHttpClient();
> 		if (user != null && password != null) {
> 			String hostname = url.getHost();
> 			HttpHost hostHttp = new HttpHost(hostname, 80, "http");
> 			HttpHost hostHttps = new HttpHost(hostname, 443, "https");
> 			client.getCredentialsProvider().setCredentials(
> 			        new AuthScope(hostname, 80), 
> 			        new UsernamePasswordCredentials(user, password));
> 	
> 			client.getCredentialsProvider().setCredentials(
> 			        new AuthScope(hostname, 443), 
> 			        new UsernamePasswordCredentials(user, password));
> 	
> 			// Create AuthCache instance
> 			AuthCache authCache = new BasicAuthCache();
> 			// Generate BASIC scheme object and add it to the local auth cache
> 			BasicScheme basicAuth = new BasicScheme();
> 			authCache.put(hostHttp, basicAuth);
> 			authCache.put(hostHttps, basicAuth);
> 	
> 			// Add AuthCache to the execution context
> 			BasicHttpContext localcontext = new BasicHttpContext();
> 			localcontext.setAttribute(ClientContext.AUTH_CACHE, authCache);
> 		}
> 		HttpGet httpget = new HttpGet(url.toString());
> 		httpget.setHeader("If-Modified-Since", lastModified);
> 		HttpResponse response = client.execute(httpget);
> 		responseCode = response.getStatusLine().getStatusCode();
> 		HttpEntity entity = response.getEntity();
> 		if (responseCode == HttpStatus.SC_NOT_MODIFIED) {
> 			
> 		} else if (responseCode == HttpStatus.SC_OK && entity != null) {
> 			outStream = new BufferedOutputStream(new FileOutputStream(outFilename));
> 			entity.writeTo(outStream);
> 		}
> Here's the log output:
> DEBUG [2011-08-02 01:23:01,031] [org.apache.http.impl.conn.SingleClientConnManager:212]
Get connection for route HttpRoute[{}->http://<host>]
> DEBUG [2011-08-02 01:23:01,036] [org.apache.http.impl.conn.DefaultClientConnectionOperator:145]
Connecting to <host>/<IP>:80
> DEBUG [2011-08-02 01:23:01,057] [org.apache.http.client.protocol.RequestAddCookies:132]
CookieSpec selected: best-match
> DEBUG [2011-08-02 01:23:01,057] [org.apache.http.client.protocol.RequestAuthCache:75]
  Auth cache not set in the context
> DEBUG [2011-08-02 01:23:01,058] [org.apache.http.impl.client.DefaultRequestDirector:631]
       Attempt 1 to execute request
> DEBUG [2011-08-02 01:23:01,058] [org.apache.http.impl.conn.DefaultClientConnection:264]
Sending request: GET <file> HTTP/1.1
> DEBUG [2011-08-02 01:23:01,058] [org.apache.http.impl.conn.Wire:63]     >> "GET
<file> HTTP/1.1[\r][\n]"
> DEBUG [2011-08-02 01:23:01,058] [org.apache.http.impl.conn.Wire:63]     >> "If-Modified-Since:
Mon, 01 Aug 2011 18:26:09 CEST[\r][\n]"
> DEBUG [2011-08-02 01:23:01,059] [org.apache.http.impl.conn.Wire:63]     >> "Host:
<host>[\r][\n]"
> DEBUG [2011-08-02 01:23:01,059] [org.apache.http.impl.conn.Wire:63]     >> "Connection:
Keep-Alive[\r][\n]"
> DEBUG [2011-08-02 01:23:01,059] [org.apache.http.impl.conn.Wire:63]     >> "User-Agent:
Apache-HttpClient/4.1.1 (java 1.5)[\r][\n]"
> DEBUG [2011-08-02 01:23:01,059] [org.apache.http.impl.conn.Wire:63]     >> "Accept-Encoding:
gzip,deflate[\r][\n]"
> DEBUG [2011-08-02 01:23:01,060] [org.apache.http.impl.conn.Wire:63]     >> "[\r][\n]"
> DEBUG [2011-08-02 01:23:01,060] [org.apache.http.impl.conn.DefaultClientConnection:268]
>> GET <file> HTTP/1.1
> DEBUG [2011-08-02 01:23:01,060] [org.apache.http.impl.conn.DefaultClientConnection:271]
>> If-Modified-Since: Mon, 01 Aug 2011 18:26:09 CEST
> DEBUG [2011-08-02 01:23:01,060] [org.apache.http.impl.conn.DefaultClientConnection:271]
>> Host: <host>
> DEBUG [2011-08-02 01:23:01,061] [org.apache.http.impl.conn.DefaultClientConnection:271]
>> Connection: Keep-Alive
> DEBUG [2011-08-02 01:23:01,061] [org.apache.http.impl.conn.DefaultClientConnection:271]
>> User-Agent: Apache-HttpClient/4.1.1 (java 1.5)
> DEBUG [2011-08-02 01:23:01,061] [org.apache.http.impl.conn.DefaultClientConnection:271]
>> Accept-Encoding: gzip,deflate
> DEBUG [2011-08-02 01:23:01,085] [org.apache.http.impl.conn.Wire:63]     << "HTTP/1.1
200 OK[\r][\n]"
> DEBUG [2011-08-02 01:23:01,086] [org.apache.http.impl.conn.Wire:63]     << "Server:
nginx/0.8.54[\r][\n]"
> DEBUG [2011-08-02 01:23:01,086] [org.apache.http.impl.conn.Wire:63]     << "Date:
Mon, 01 Aug 2011 23:23:01 GMT[\r][\n]"
> DEBUG [2011-08-02 01:23:01,086] [org.apache.http.impl.conn.Wire:63]     << "Content-Type:
text/plain[\r][\n]"
> DEBUG [2011-08-02 01:23:01,086] [org.apache.http.impl.conn.Wire:63]     << "Last-Modified:
Wed, 20 Jul 2011 14:39:57 GMT[\r][\n]"
> DEBUG [2011-08-02 01:23:01,087] [org.apache.http.impl.conn.Wire:63]     << "Transfer-Encoding:
chunked[\r][\n]"
> DEBUG [2011-08-02 01:23:01,087] [org.apache.http.impl.conn.Wire:63]     << "Connection:
keep-alive[\r][\n]"
> DEBUG [2011-08-02 01:23:01,087] [org.apache.http.impl.conn.Wire:63]     << "Vary:
Accept-Encoding[\r][\n]"
> DEBUG [2011-08-02 01:23:01,087] [org.apache.http.impl.conn.Wire:63]     << "Expires:
Wed, 31 Aug 2011 23:23:01 GMT[\r][\n]"
> DEBUG [2011-08-02 01:23:01,088] [org.apache.http.impl.conn.Wire:63]     << "Cache-Control:
max-age=2592000[\r][\n]"
> DEBUG [2011-08-02 01:23:01,088] [org.apache.http.impl.conn.Wire:63]     << "Content-Encoding:
gzip[\r][\n]"
> DEBUG [2011-08-02 01:23:01,088] [org.apache.http.impl.conn.Wire:63]     << "[\r][\n]"
> DEBUG [2011-08-02 01:23:01,088] [org.apache.http.impl.conn.DefaultClientConnection:249]
Receiving response: HTTP/1.1 200 OK
> DEBUG [2011-08-02 01:23:01,089] [org.apache.http.impl.conn.DefaultClientConnection:252]
<< HTTP/1.1 200 OK
> DEBUG [2011-08-02 01:23:01,089] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Server: nginx/0.8.54
> DEBUG [2011-08-02 01:23:01,089] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Date: Mon, 01 Aug 2011 23:23:01 GMT
> DEBUG [2011-08-02 01:23:01,089] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Content-Type: text/plain
> DEBUG [2011-08-02 01:23:01,089] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Last-Modified: Wed, 20 Jul 2011 14:39:57 GMT
> DEBUG [2011-08-02 01:23:01,090] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Transfer-Encoding: chunked
> DEBUG [2011-08-02 01:23:01,090] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Connection: keep-alive
> DEBUG [2011-08-02 01:23:01,090] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Vary: Accept-Encoding
> DEBUG [2011-08-02 01:23:01,090] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Expires: Wed, 31 Aug 2011 23:23:01 GMT
> DEBUG [2011-08-02 01:23:01,090] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Cache-Control: max-age=2592000
> DEBUG [2011-08-02 01:23:01,091] [org.apache.http.impl.conn.DefaultClientConnection:255]
<< Content-Encoding: gzip
> DEBUG [2011-08-02 01:23:01,091] [org.apache.http.impl.client.DefaultRequestDirector:477]
       Connection can be kept alive indefinitely
> DEBUG [2011-08-02 01:23:01,131] [org.apache.http.impl.conn.Wire:63]     << "600a[\r][\n]"
> DEBUG [2011-08-02 01:23:01,132] [org.apache.http.impl.conn.Wire:77]     << "[0x1f]"
> DEBUG [2011-08-02 01:23:03,838] [org.apache.http.impl.conn.Wire:63]     << "[\r][\n]"
> .... (Content)
> DEBUG [2011-08-02 01:23:03,839] [org.apache.http.impl.conn.SingleClientConnManager:267]
Releasing connection org.apache.http.impl.conn.SingleClientConnManager$ConnAdapter@2aa3873
> DEBUG [2011-08-02 01:23:03,839] [org.apache.http.impl.conn.SingleClientConnManager:285]
Released connection open but not reusable.
> DEBUG [2011-08-02 01:23:03,839] [org.apache.http.impl.conn.DefaultClientConnection:152]
Connection shut down
> ERROR [2011-08-02 01:23:03,840] [app]        Exception downloading file
> java.io.EOFException
>         at java.util.zip.GZIPInputStream.readUByte(GZIPInputStream.java:224)
>         at java.util.zip.GZIPInputStream.readUShort(GZIPInputStream.java:214)
>         at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:153)
>         at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:75)
>         at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:85)
>         at org.apache.http.client.entity.GzipDecompressingEntity.getContent(GzipDecompressingEntity.java:63)
>         at org.apache.http.util.EntityUtils.consume(EntityUtils.java:65)
>         at org.apache.http.conn.BasicManagedEntity.ensureConsumed(BasicManagedEntity.java:98)
>         at org.apache.http.conn.BasicManagedEntity.writeTo(BasicManagedEntity.java:115)
>         at util.FileDownload.download(FileDownload.java:188) <--- my app
> Does this happen because the server doesn't specify the content length?

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