[opencms-dev] handle404 appears on every 404 page within the export folder
Mario Jäger
m.jaeger at alkacon.com
Tue Aug 31 13:02:46 CEST 2010
Hi Graeme,
If you use Apache with mod_proxy, then you have to configure your environment like described here: http://www.opencms-wiki.org/MultiSite_configuration_instructions
Your Apache virtual host configuration will look something like:
<VirtualHost Server.IPAddress.Goes.Here>
DocumentRoot /usr/local/www/htdocs
ServerName www.mynewsite.com
ProxyPass / http://localhost:8081/opencms/opencms/
ProxyPassReverse / http://localhost:8081/opencms/opencms/
</VirtualHost>
In your case that will be something like:
<VirtualHost test.scholar.hw.ac.uk>
DocumentRoot "D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/"
ServerName test.scholar.hw.ac.uk
ProxyPass / http://localhost:8088/opencms/
ProxyPassReverse / http://localhost:8088/opencms/
</VirtualHost>
Then, you get the OpenCms 404 error page, when you request a not available resource.
--
Kind Regards,
Mario.
-------------------
Mario Jäger
Alkacon Software GmbH - The OpenCms Experts
http://www.alkacon.com - http://www.opencms.org
Graeme Kidd schrieb:
> Hi,
>
> If I add "opencms" to the path like your suggestion:
> RewriteRule .* http://test.scholar.hw.ac.uk:8088/opencms/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>
> Note: I am not using "balancer://mycluster/" Since I am using a dev machine that doesnt use clustering.
>
> Then when I go to http://test.co.uk/export/doesnotexist.gif I get the following error page:
> "Error displaying the resource!"
> "The requested resource "null" could not be displayed due to a unknown error."
>
> Since I am on a dev machine I decided to enable rewite logs which show the following:
> (2) init rewrite engine with requested uri /export/doesnotexist.gif
> (3) applying pattern '.*' to uri '/export/doesnotexist.gif'
> (4) RewriteCond: input='/export/doesnotexist.gif' pattern='^/export/(.*)' [NC] => matched
> (4) RewriteCond: input='D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/export/doesnotexist.gif' pattern='!-f' => matched
> (4) RewriteCond: input='D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/export/doesnotexist.gif/index_export.html' pattern='!-f' => matched
> (2) rewrite '/export/doesnotexist.gif' -> 'http://test.co.uk:8088/opencms/handle404?exporturi=/export/doesnotexist.gif&'
> (3) split uri=http://test.co.uk:8088/opencms/handle404?exporturi=/export/doesnotexist.gif& -> uri=http://test.co.uk:8088/opencms/handle404, args=exporturi=/export/doesnotexist.gif
> (2) forcing proxy-throughput with http://test.co.uk:8088/opencms/handle404
> (1) go-ahead with proxy request proxy:http://test.co.uk:8088/opencms/handle404 [OK]
>
> I also added the following line to the log4j.properties file:
> log4j.logger.org.opencms.importexport.CmsExport=DEBUG
>
> This meant the following appeared on the opencms.log file:
> 30 Aug 2010 15:04:43,324 DEBUG [cexport.CmsStaticExportManager:2347] Cannot export file "/doesnotexist.gif". Does the guest user have access to it?
> org.opencms.file.CmsVfsResourceNotFoundException: Error reading resource from path "/doesnotexist.gif".
> at org.opencms.file.CmsVfsResourceNotFoundException.createException(CmsVfsResourceNotFoundException.java:79)
> at org.opencms.db.CmsDbContext.throwException(CmsDbContext.java:238)
> at org.opencms.db.CmsDbContext.report(CmsDbContext.java:212)
> at org.opencms.db.CmsSecurityManager.readResource(CmsSecurityManager.java:4035)
> at org.opencms.file.CmsObject.readResource(CmsObject.java:3525)
> at org.opencms.file.CmsObject.readResource(CmsObject.java:3492)
> at org.opencms.staticexport.CmsStaticExportManager.getVfsNameInternal(CmsStaticExportManager.java:2338)
> at org.opencms.staticexport.CmsStaticExportManager.getExportData(CmsStaticExportManager.java:2231)
> at org.opencms.staticexport.CmsStaticExportManager.getExportData(CmsStaticExportManager.java:906)
> at org.opencms.main.OpenCmsServlet.handle(OpenCmsServlet.java:196)
> at org.opencms.main.OpenCmsServlet.invokeHandler(OpenCmsServlet.java:272)
> at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:150)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
> at java.lang.Thread.run(Unknown Source)
> Caused by: org.opencms.file.CmsVfsResourceNotFoundException: Unable to read resource "/doesnotexist.gif".
> at org.opencms.db.generic.CmsVfsDriver.readResource(CmsVfsDriver.java:1951)
> at org.opencms.db.CmsDriverManager.readResource(CmsDriverManager.java:6524)
> at org.opencms.db.CmsSecurityManager.readResource(CmsSecurityManager.java:5854)
> at org.opencms.db.CmsSecurityManager.readResource(CmsSecurityManager.java:4033)
> ... 22 more
>
> If I remove the "opencms" path in the apache configuration and visit:
> http://test.co.uk/export/doesnotexist.gif
>
> Then I am back to this:
> "Server error 404"
> "The requested resource "/handle404" was not found on the server."
>
> Now that I have some log data I thought you would be intreseted in this as well:
> (2) init rewrite engine with requested uri /export/doesnotexist.gif
> (3) applying pattern '.*' to uri '/export/doesnotexist.gif'
> (4) RewriteCond: input='/export/doesnotexist.gif' pattern='^/export/(.*)' [NC] => matched
> (4) RewriteCond: input='D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/export/doesnotexist.gif' pattern='!-f' => matched
> (4) RewriteCond: input='D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/export/doesnotexist.gif/index_export.html' pattern='!-f' => matched
> (2) rewrite '/export/doesnotexist.gif' -> 'http://test.co.uk:8088/handle404?exporturi=/export/doesnotexist.gif&'
> (3) split uri=http://test.co.uk:8088/handle404?exporturi=/export/doesnotexist.gif& -> uri=http://test.co.uk:8088/handle404, args=exporturi=/export/doesnotexist.gif
> (2) forcing proxy-throughput with http://test.co.uk:8088/handle404
> (1) go-ahead with proxy request proxy:http://test.co.uk:8088/handle404 [OK]
>
> The stacktrace seems to follow a slightly different route e.g. "27 more" instead of "22 more":
> 30 Aug 2010 14:37:54,527 DEBUG [cexport.CmsStaticExportManager:2347] Cannot export file "/doesnotexist.gif". Does the guest user have access to it?
> org.opencms.file.CmsVfsResourceNotFoundException: Error reading resource from path "/doesnotexist.gif".
> at org.opencms.file.CmsVfsResourceNotFoundException.createException(CmsVfsResourceNotFoundException.java:79)
> at org.opencms.db.CmsDbContext.throwException(CmsDbContext.java:238)
> at org.opencms.db.CmsDbContext.report(CmsDbContext.java:212)
> at org.opencms.db.CmsSecurityManager.readResource(CmsSecurityManager.java:4035)
> at org.opencms.file.CmsObject.readResource(CmsObject.java:3525)
> at org.opencms.file.CmsObject.readResource(CmsObject.java:3492)
> at org.opencms.staticexport.CmsStaticExportManager.getVfsNameInternal(CmsStaticExportManager.java:2338)
> at org.opencms.staticexport.CmsStaticExportManager.getExportData(CmsStaticExportManager.java:2231)
> at org.opencms.staticexport.CmsStaticExportManager.getExportData(CmsStaticExportManager.java:906)
> at org.opencms.main.OpenCmsServlet.handle(OpenCmsServlet.java:196)
> at org.opencms.main.OpenCmsServlet.invokeHandler(OpenCmsServlet.java:272)
> at org.opencms.main.OpenCmsServlet.doGet(OpenCmsServlet.java:150)
> at org.opencms.main.OpenCmsServletErrorHandler.doGet(OpenCmsServletErrorHandler.java:82)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
> at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:438)
> at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
> at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
> at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:416)
> at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:343)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:144)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
> at java.lang.Thread.run(Unknown Source)
> Caused by: org.opencms.file.CmsVfsResourceNotFoundException: Unable to read resource "/doesnotexist.gif".
> at org.opencms.db.generic.CmsVfsDriver.readResource(CmsVfsDriver.java:1951)
> at org.opencms.db.CmsDriverManager.readResource(CmsDriverManager.java:6524)
> at org.opencms.db.CmsSecurityManager.readResource(CmsSecurityManager.java:5854)
> at org.opencms.db.CmsSecurityManager.readResource(CmsSecurityManager.java:4033)
> ... 27 more
>
> any other ideas?
>
> Thanks,
> Graeme
>
> ----------------------------------------
>
>> Date: Mon, 30 Aug 2010 09:46:52 +0200
>> From: m.jaeger at alkacon.com
>> To: opencms-dev at opencms.org
>> Subject: Re: [opencms-dev] handle404 appears on every 404 page within the export folder
>>
>> Hi Graeme,
>>
>> Try it with that line:
>> RewriteRule .* balancer://mycluster/opencms/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>
>> instead of that line, please:
>> RewriteRule .* balancer://mycluster/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>
>>
>> Because, I thought, that www.test.com is your own test site, I thought, that you do not get the OpenCms 404 error page, but another 404 error page. But, I think that you get the OpenCms 404 error page that says, that the
>> requested resource "/handle404" is not available. If you change the line above, than that problem does not more exist.
>>
>> --
>> Kind Regards,
>> Mario.
>>
>> -------------------
>> Mario Jäger
>>
>> Alkacon Software GmbH - The OpenCms Experts
>> http://www.alkacon.com - http://www.opencms.org
>>
>>
>> Graeme Kidd schrieb:
>>
>>> Sorry I dont have a publically available url but the export processes does work. For example I could have this URL:
>>> http://www.test.com/export/doesexist.gif
>>>
>>> If I delete "export/doesexist.gif" from the RFS then its created again as soon as I visit "http://www.test.com/export/doesexist.gif".
>>>
>>> When I attempt to go to a URL that contains the export path and the file really doesnt exist on either the VFS or RFS. It causes me to get a 404 page that mentions /handle404 e.g http://www.test.com/export/doesnotexist.gif
>>>
>>> I installed OpenCms as the Root and followed this because I am using mod_proxy with mod_proxy_ajp and mod_proxy_balancer:
>>> http://www.opencms-wiki.org/Avoiding_/opencms/opencms_in_the_URL_%28apache_%2B_mod_proxy%29
>>>
>>> This means my virtual host looks like this:
>>> < VirtualHost *:80>
>>> < Directory "D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/">
>>> Order allow,deny
>>> Allow from all
>>> < / Directory>
>>> ServerName test.co.uk
>>> DocumentRoot "D:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/ROOT/"
>>> ErrorLog logs/error.log
>>>
>>> # Log only non-redirect requests in "normal" log file
>>> SetEnvIf Request_URI "\/opencms\/*" redirect
>>> CustomLog logs/test.co.uk-access.log common env=!redirect
>>>
>>> RewriteEngine on
>>> RewriteLog logs/test.rewrite.log
>>> RewriteLogLevel 9
>>>
>>> # Redirect all request to non-existing file in the export directory to OpenCms which will generate the files "on the fly"
>>> RewriteCond %{REQUEST_URI} ^/export/(.*) [NC]
>>> RewriteCond "%{DOCUMENT_ROOT}%{REQUEST_FILENAME}" !-f
>>> RewriteCond "%{DOCUMENT_ROOT}%{REQUEST_FILENAME}/index_export.html" !-f
>>> RewriteRule .* balancer://mycluster/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>>
>>> # Also redirect all other 404 errors to OpenCms
>>> ErrorDocument 404 /system/shared/handle404.html
>>>
>>> ProxyPass /opencms/ !
>>> RedirectPermanent /opencms/ http://test.co.uk/
>>>
>>> ProxyPass /resources/ !
>>> ProxyPass /export/ !
>>>
>>> ProxyPass / balancer://mycluster/opencms/
>>> ProxyPassReverse / balancer://mycluster/opencms/
>>> < / VirtualHost>
>>>
>>> Graeme
>>>
>>>
>>> ----------------------------------------
>>>
>>>
>>>> Date: Fri, 27 Aug 2010 10:07:48 +0200
>>>> From: m.jaeger at alkacon.com
>>>> To: opencms-dev at opencms.org
>>>> Subject: Re: [opencms-dev] handle404 appears on every 404 page within the export folder
>>>>
>>>> Hi Graeme,
>>>>
>>>> Send us an example link to a successful exported OpenCms resource, please.
>>>>
>>>> What is the name of your OpenCms application in TomCat?
>>>>
>>>> Did you configure your OpenCms, TomCat and Apache like described here?: http://www.opencms-wiki.org/MultiSite_configuration_instructions_%28apache_%2B_mod_jk%29
>>>>
>>>> --
>>>> Kind Regards,
>>>> Mario.
>>>>
>>>> -------------------
>>>> Mario Jäger
>>>>
>>>> Alkacon Software GmbH - The OpenCms Experts
>>>> http://www.alkacon.com - http://www.opencms.org
>>>>
>>>>
>>>> Graeme Kidd schrieb:
>>>>
>>>>
>>>>> Yes sorry I copy and pasted from the documentation and not my real config so it does actually says:
>>>>> RewriteRule .* balancer://mycluster/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>>>>
>>>>> Any other ideas?
>>>>>
>>>>> Thanks,
>>>>> Graeme
>>>>>
>>>>>
>>>>> ----------------------------------------
>>>>>
>>>>>
>>>>>
>>>>>> Date: Thu, 26 Aug 2010 09:36:58 +0200
>>>>>> From: m.jaeger at alkacon.com
>>>>>> To: opencms-dev at opencms.org
>>>>>> Subject: Re: [opencms-dev] handle404 appears on every 404 page within the export folder
>>>>>>
>>>>>> Hi Graeme,
>>>>>>
>>>>>> It seems, that you use Apache with mod_jk.
>>>>>>
>>>>>> Please, have a look here to check your configuration: http://www.opencms-wiki.org/MultiSite_configuration_instructions_%28apache_%2B_mod_jk%29
>>>>>>
>>>>>> I think one point is, that you should use the following line in the Apache configuration, if your OpenCms installation is installed as the ROOT application in Tomcat:
>>>>>>
>>>>>> RewriteRule .* http://127.0.0.1:8081/opencms/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>>>>>
>>>>>> instead of that line:
>>>>>>
>>>>>> RewriteRule .* http://127.0.0.1:8081/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>>>>>
>>>>>> --
>>>>>> Kind Regards,
>>>>>> Mario.
>>>>>>
>>>>>> -------------------
>>>>>> Mario Jäger
>>>>>>
>>>>>> Alkacon Software GmbH - The OpenCms Experts
>>>>>> http://www.alkacon.com - http://www.opencms.org
>>>>>>
>>>>>>
>>>>>> Graeme Kidd schrieb:
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I am using the "CmsOnDemandStaticExportHandler" Static Export Handler which requires the following mod_rewrite configuration:
>>>>>>> RewriteCond %{REQUEST_URI} ^/export/(.*) [NC]
>>>>>>> RewriteCond "%{DOCUMENT_ROOT}%{REQUEST_FILENAME}" !-f
>>>>>>> RewriteCond "%{DOCUMENT_ROOT}%{REQUEST_FILENAME}/index_export.html" !-f
>>>>>>> RewriteRule .* http://127.0.0.1:8081/handle404?exporturi=%{REQUEST_URI}&%{QUERY_STRING} [P]
>>>>>>>
>>>>>>> This all works fine when the resource doesn’t exist but is still to be exported, what I find annoying however is when the file really doesn't exist. As it causes the 404 page to say this within the export directory:
>>>>>>> "The requested resource "/handle404" was not found on the server."
>>>>>>>
>>>>>>> So for example you could have:
>>>>>>> http://www.test.com/export/doesnotexist.gif
>>>>>>>
>>>>>>> Then instead of saying:
>>>>>>> The requested resource "/export/doesnotexist.gif" was not found on the server.
>>>>>>>
>>>>>>> It says:
>>>>>>> The requested resource "/handle404" was not found on the server.
>>>>>>>
>>>>>>> I have tried changing the line to "request.getRequestURL()" and "request.getServletPath()" but they both return a path that includes handle404.
>>>>>>>
>>>>>>> The only way round this I can think of would be to use JavaScript in the handle404.jsp page e.g.
>>>>>>> "document.location.href"
>>>>>>>
>>>>>>> If that is the best solution then might I suggest that a future improvement would be to detect if the file really doesn’t exist and return the URI to its original location.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Graeme
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> This mail is sent to you from the opencms-dev mailing list
>>>>>>> To change your list options, or to unsubscribe from the list, please visit
>>>>>>> http://lists.opencms.org/mailman/listinfo/opencms-dev
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> _______________________________________________
>>>>>> This mail is sent to you from the opencms-dev mailing list
>>>>>> To change your list options, or to unsubscribe from the list, please visit
>>>>>> http://lists.opencms.org/mailman/listinfo/opencms-dev
>>>>>>
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> This mail is sent to you from the opencms-dev mailing list
>>>>> To change your list options, or to unsubscribe from the list, please visit
>>>>> http://lists.opencms.org/mailman/listinfo/opencms-dev
>>>>>
>>>>>
>>>>>
>>>> _______________________________________________
>>>> This mail is sent to you from the opencms-dev mailing list
>>>> To change your list options, or to unsubscribe from the list, please visit
>>>> http://lists.opencms.org/mailman/listinfo/opencms-dev
>>>>
>>>>
>>> _______________________________________________
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>>> To change your list options, or to unsubscribe from the list, please visit
>>> http://lists.opencms.org/mailman/listinfo/opencms-dev
>>>
>>>
>> _______________________________________________
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>> To change your list options, or to unsubscribe from the list, please visit
>> http://lists.opencms.org/mailman/listinfo/opencms-dev
>>
>
>
> _______________________________________________
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> To change your list options, or to unsubscribe from the list, please visit
> http://lists.opencms.org/mailman/listinfo/opencms-dev
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