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https://issues.apache.org/jira/browse/HTTPCORE-274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleg Kalnichevski resolved HTTPCORE-274.
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Resolution: Invalid
We cannot log exceptions in HttpCore because it does not depend on any
particular logging toolkit. Besides, one may actually want to have such
requests rejected as invalid as the header is clearly in violation of the HTTP
spec. However, one can employ a custom application specific response parser in
order handle such messages more gracefully.
Yangqing, please see this section of the HttpClient tutorial:
http://hc.apache.org/httpcomponents-client-ga/tutorial/html/advanced.html#d4e1341
Oleg
> Invalid Header
> --------------
>
> Key: HTTPCORE-274
> URL: https://issues.apache.org/jira/browse/HTTPCORE-274
> Project: HttpComponents HttpCore
> Issue Type: Bug
> Components: HttpCore
> Affects Versions: 4.2-alpha1
> Environment: windows7, ie9, chrome13, jdk7
> Reporter: yangqing
> Priority: Minor
>
> When I tried to get a page using HttpClient, I got the exception below, the
> url is "http://ss.97down.info/mimi/file.php/L87S8KD.html";.
> Caused by: org.apache.http.ProtocolException: Invalid header: <meta
> http-equiv="Content-Type" content="text/html; charset=utf-8" />
> at
> org.apache.http.impl.io.AbstractMessageParser.parseHeaders(AbstractMessageParser.java:226)
> at
> org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:261)
> at
> org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:284)
> 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:300)
> at
> org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)
> 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)
> The page can be displayed normally in IE and Chrome. I traced the source code
> of HttpCore, and find this line in BufferedHeader.java,
> int colon = buffer.indexOf(':');
> I found that except other normal headers, there was really an odd header, the
> value is :
> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
> The format is ugly, there is no colon in it, and caused an exception.
> The orginal header the Chrome gets is like:
> HTTP/1.1 200 OK
> Connection: close
> Date: Sat, 04 Sep 2010 08:46:38 GMT
> Server: Microsoft-IIS/6.0
> X-Powered-By: ASP.NET
> X-Powered-By: PHP/5.2.8
> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
> Content-type: text/html
> Yes, it's malformated, but Chrome parsed it as:
> Connection:close
> Content-type:text/html
> Date:Sat, 04 Sep 2010 08:46:38 GMT
> Server:Microsoft-IIS/6.0
> X-Powered-By:ASP.NET
> PHP/5.2.8
> I then and a snippet in the for loop of the parseHeaders method of the class
> AbstractMessageParser.java to ignore this type of error.
> if(current.indexOf(':')<=0){
> continue;
> }
> It works for me, I hope someone can fix this problem.
> Thanks!
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