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Posted to dev@hc.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2021/05/01 16:04:00 UTC
[jira] [Commented] (HTTPCLIENT-2157) Gzip decompression not applied
with Apache CachingHttpClient version 5.0.3
[ https://issues.apache.org/jira/browse/HTTPCLIENT-2157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17337825#comment-17337825 ]
ASF subversion and git services commented on HTTPCLIENT-2157:
-------------------------------------------------------------
Commit b151df7e8ccd5dad31193eb8ad7a7f34e14efb07 in httpcomponents-client's branch refs/heads/master from Oleg Kalnichevski
[ https://gitbox.apache.org/repos/asf?p=httpcomponents-client.git;h=b151df7 ]
HTTPCLIENT-2157: response object generated by the classic caching backend is missing the original content encoding
> Gzip decompression not applied with Apache CachingHttpClient version 5.0.3
> --------------------------------------------------------------------------
>
> Key: HTTPCLIENT-2157
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2157
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 5.0.3
> Environment: Android
> Reporter: Gunther Heppner
> Priority: Major
>
> We are in the process of migrating from Apache HttpClient 4.5 to 5.0.3. Since we want to do client side http caching we are using {{CachingHttpClientBuilder}} to set up the HttpClient. With version 4.5.x this works fine and gzip-encoded responses are automatically decompressed. However, with version 5.0.3, the responses are returned as uncompressed {{ByteArrayEntity}} and the {{Conent-Encoding}} header is missing from the returned {{ByteArrayEntity}}, which prevents the default gzip decompression to be applied.
>
> Note - I was able to get gzip decompression with the default HttpClient.
>
> Steps to reproduce:
> * Run [this code|https://stackoverflow.com/questions/67318260/gzip-decompression-not-working-with-apache-cachinghttpclient-version-5-0-3] with HttpClient 5.0.3
> * Observe the ` {{responseString}}` returned from ` {{EntityUtils.toString()}}` in the ` {{HttpClientResponseHandler}}`, which will return a mangled string instead of a readable HTLM string
>
>
> Based on some debugging, it looks like the bug might be in [CachingExec.convert()|https://github.com/apache/httpcomponents-client/blob/e0c049060b45dcb9b93b7802edee3e5e4301cae5/httpclient5-cache/src/main/java/org/apache/hc/client5/http/impl/cache/CachingExec.java], which generates a {{ClassicHttpResponse}} with a {{ByteArrayEntity}} from a cache entry, dropping the {{conent-encoding}} header in the process.
>
>
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