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https://issues.apache.org/jira/browse/HTTPCORE-285?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13166822#comment-13166822
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Oleg Kalnichevski commented on HTTPCORE-285:
--------------------------------------------
It is difficult to say what default settings would fit all types of
applications. Applications that rely on HttpClient are too diverse.
Feel free to propose better default values, though.
Oleg
> Handle invalid HTTP traffic
> ---------------------------
>
> Key: HTTPCORE-285
> URL: https://issues.apache.org/jira/browse/HTTPCORE-285
> Project: HttpComponents HttpCore
> Issue Type: Bug
> Components: HttpCore
> Affects Versions: 4.1.2
> Reporter: Steve Jones
>
> Invalid HTTP responses are not handled well and can cause OutOfMemoryError
> errors.
> Most errors can probably be addressed by limiting the length when reading a
> line.
> For example:
> cat /dev/zero | nc -l 1234 # run a server that spews invalid data
> java org.apache.http.examples.client.ClientWithResponseHandler # modified
> example to connect to above server
> Result:
> executing request http://localhost:1234/
> Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
> at org.apache.http.util.ByteArrayBuffer.expand(ByteArrayBuffer.java:59)
> at org.apache.http.util.ByteArrayBuffer.append(ByteArrayBuffer.java:89)
> at
> org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:261)
> at
> org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:98)
> at
> org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:252)
> at
> org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:281)
> at
> org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:247)
> at
> org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:219)
> at
> org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:298)
> at
> org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
> at
> org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
> at
> org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
> at
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
> at
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:941)
> at
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:919)
> at
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:910)
> at
> org.apache.http.examples.client.ClientWithResponseHandler.main(ClientWithResponseHandler.java:52)
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