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https://issues.apache.org/jira/browse/HTTPCORE-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13213615#comment-13213615
]
Marcin Bazydlo commented on HTTPCORE-293:
-----------------------------------------
A diff which solves this problem:
54a57,63
> private final boolean overwrite;
>
> /**
> * Default constructor. The <code>Content-Length</code> or
> <code>Transfer-Encoding</code>
> * will cause the interceptor to throw {@link ProtocolException} if
> already present in the
> * response message.
> */
56c65
< super();
---
> this(false);
58a68,81
> /**
> * Constructor that can be used to fine-tune behavior of this interceptor.
> *
> * @param overwrite If set to <code>true</code> the
> <code>Content-Length</code> and
> * <code>Transfer-Encoding</code> headers will be created or updated if
> already present.
> * If set to <code>false</code> the <code>Content-Length</code> and
> * <code>Transfer-Encoding</code> headers will cause the interceptor to
> throw
> * {@link ProtocolException} if already present in the response message.
> */
> public RequestContent(boolean overwrite) {
> super();
> this.overwrite = overwrite;
> }
>
64c87
< if (request instanceof HttpEntityEnclosingRequest) {
---
> if (request instanceof HttpEntityEnclosingRequest && !this.overwrite)
> {
68c91
< if (request.containsHeader(HTTP.CONTENT_LEN)) {
---
> if (request.containsHeader(HTTP.CONTENT_LEN) && !this.overwrite) {
74c97
< request.addHeader(HTTP.CONTENT_LEN, "0");
---
> request.setHeader(HTTP.CONTENT_LEN, "0");
83c106
< request.addHeader(HTTP.TRANSFER_ENCODING, HTTP.CHUNK_CODING);
---
> request.setHeader(HTTP.TRANSFER_ENCODING, HTTP.CHUNK_CODING);
85c108
< request.addHeader(HTTP.CONTENT_LEN,
Long.toString(entity.getContentLength()));
---
> request.setHeader(HTTP.CONTENT_LEN,
> Long.toString(entity.getContentLength()));
> Make RequestContent processor have option to overwrite header without
> exception (like ResponseContent can)
> ----------------------------------------------------------------------------------------------------------
>
> Key: HTTPCORE-293
> URL: https://issues.apache.org/jira/browse/HTTPCORE-293
> Project: HttpComponents HttpCore
> Issue Type: Wish
> Components: HttpCore
> Affects Versions: 4.2-beta1
> Environment: all
> Reporter: Marcin Bazydlo
> Priority: Minor
> Labels: patch
> Fix For: 4.2-beta1, 4.2
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> Create a new constructor with boolean parameter overwrite which decide
> behaviour of this processor.
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