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Posted to dev@tika.apache.org by "Sébastien Michel (JIRA)" <ji...@apache.org> on 2008/12/07 20:51:44 UTC

[jira] Updated: (TIKA-180) XHTMLContentHandler unable to extract text from MSWord file

     [ https://issues.apache.org/jira/browse/TIKA-180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sébastien Michel updated TIKA-180:
----------------------------------

    Attachment: TMB.doc

> XHTMLContentHandler unable to extract text from MSWord file
> -----------------------------------------------------------
>
>                 Key: TIKA-180
>                 URL: https://issues.apache.org/jira/browse/TIKA-180
>             Project: Tika
>          Issue Type: Bug
>          Components: parser
>    Affects Versions: 0.2, 0.3
>         Environment: linux. SUN JVM 1.5.0_16-b02
> Binary file indexing with Solr and Tika
>            Reporter: Sébastien Michel
>         Attachments: TMB.doc
>
>
> the issue is reproducible with Solr svn / ExtractingRequestHandler + patch SOLR.284 and tika all versions
> I tried with some MSWord files but didn't try with xls or ppt files. 
> See below an example of MSWord indexing with curl that returns an exception :
>   seb@gueuze:~$ curl http://localhost:8983/solr/update/extract?ext.idx.attr=false\&ext.def.fl=text\&ext.extract.only=true -F "myfile=@/tmp/TMB.doc"<html>                                                                                                                                           
> <head>                                                                                                                                           
> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>                                                                        
> <title>Error 500 </title>                                                                                                                        
> </head>                                                                                                                                          
> <body><h2>HTTP ERROR: 500</h2><pre>java.io.IOException: The character '' is an invalid XML character                                             
> org.apache.solr.common.SolrException: java.io.IOException: The character '' is an invalid XML character
>         at org.apache.solr.handler.ExtractingDocumentLoader.load(ExtractingDocumentLoader.java:160)    
>         at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:54)
>         at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)               
>         at org.apache.solr.core.SolrCore.execute(SolrCore.java:1313)                                           
>         at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:303)                     
>         at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:232)                    
>         at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)             
>         at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)                            
>         at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)                         
>         at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)                            
>         at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)                            
>         at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)                               
>         at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)        
>         at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)                      
>         at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)                            
>         at org.mortbay.jetty.Server.handle(Server.java:285)                                                    
>         at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)                             
>         at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:835)                    
>         at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:641)
>         at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:202)
>         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
>         at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
>         at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
> Caused by: java.io.IOException: The character '' is an invalid XML character
>         at org.apache.xml.serialize.BaseMarkupSerializer.characters(Unknown Source)
>         at org.apache.tika.sax.ContentHandlerDecorator.characters(ContentHandlerDecorator.java:85)
>         at org.apache.tika.sax.XHTMLContentHandler.characters(XHTMLContentHandler.java:130)
>         at org.apache.tika.sax.XHTMLContentHandler.element(XHTMLContentHandler.java:136)
>         at org.apache.tika.parser.microsoft.OfficeParser.parse(OfficeParser.java:78)
>         at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:108)
>         at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:80)
>         at org.apache.solr.handler.ExtractingDocumentLoader.load(ExtractingDocumentLoader.java:146)
>         ... 22 more
> </pre>
> <p>RequestURI=/solr/update/extract</p><p><i><small><a href="http://jetty.mortbay.org/">Powered by Jetty://</a></small></i></p><br/>
> After investigation, it seems that OfficeParser returns text and ISO control characters.
> I don't know where is the best place to fix the issue (POI, tika OfficeParser, etc)
> following a lazy patch that remove ISO control characters and try again when an exception occur
>   --- src/main/java/org/apache/tika/sax/XHTMLContentHandler.java  (révision 723972)
> +++ src/main/java/org/apache/tika/sax/XHTMLContentHandler.java  (copie de travail)
> @@ -132,7 +132,19 @@
>      public void element(String name, String value) throws SAXException {
>          startElement(name);
> -        characters(value);
> +        try {
> +               characters(value);
> +        } catch (Exception e) {
> +               int len = value.length();
> +               StringBuffer buffer = new StringBuffer();
> +
> +               while (len > 0) {
> +                if (!Character.isISOControl(value.charAt(len-1)))
> +                     buffer.append(value.charAt(len-1));
> +                len--;
> +            }
> +            characters(buffer.toString());
> +        }
>          endElement(name);
>      }

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