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Graham Dumpleton
graham.dumpleton at gmail.com
Mon Apr 28 17:02:08 EDT 2008
2008/4/28 Emyr Thomas <emyr.thomas at gmail.com>: > Graham, out of interest, has this always been the case with mod_python, or > was this behavious introduced in a particular release? This is nothing to do with mod_python, it is how underlying Apache C APIs work. It has always been this way. If you have seen it behave any other way, it would have been by luck due to calling sequences and not guaranteed. Suggest you dig through: http://www.fmc-modeling.org/category/projects/apache/amp/Apache_Modeling_Project.html to get a better understanding of how Apache works internally. Graham > "Graham Dumpleton" > <graham.dumpleton at gmail.com> wrote in message > news:88e286470704191453o5b0b3c08u77b14064c1f58950 at mail.gmail.com... > > > > You can't use a mod_python input filter to modify incoming headers. If > > the changes to the headers aren't intended to influence the behaviour > > of what Apache does during access, authentication, authorisation and > > type checking phases, use a PythonFixupHandler to update any headers > > to then be used by the actual response handler. > > > > Note, provided you are using mod_python 3.3, you can actually use > > mod_python to trigger the proxying as well. See: > > > > http://issues.apache.org/jira/browse/MODPYTHON-141 > > > > Graham > > > > On 20/04/07, indyone ;o) <indyone at gmail.com> > > wrote: > >> Hi list, > >> > >> I'm trying to get the headers_in from the client, and after > >> changing/adding > >> some headers i would like to pass them to the backend server. > >> I'm using Apache/2.0.55 (Win32) mod_python/3.1.3 Python/2.3.5 > >> The problem is that the headers are sent to the backend unchanged when > >> using > >> this simple input filter: > >> > >> def inputfilter(filter): > >> > >> filter.req.headers_in['X-MyHeader'] = 'Test' > >> if filter.req.main is not None: > >> filter.pass_on() > >> return > >> > >> filter.req.log_error('Start %s' % filter.req.uri) > >> s = filter.read() > >> while s: > >> filter.write(s) > >> s = filter.read() > >> if s is None: > >> filter.close() > >> filter.req.log_error('End %s' % filter.req.uri) > >> > >> filter.req.log_error('%s' % filter.req.headers_in) > >> > >> and Apache logs: > >> > >> [Thu Apr 19 18:17:28 2007] [error] [client 127.0.0.1] Start /, referer: > >> http://localhost/ > >> [Thu Apr 19 18:17:28 2007] [error] [client 127.0.0.1] End /, referer: > >> http://localhost/ > >> [Thu Apr 19 18:17:28 2007] [error] [client 127.0.0.1] {'X-MyHeader': > >> 'Test', > >> 'X-Forwarded-Server': 'luna', 'X-Forwarded-Host': 'localhost', > >> 'X-Forwarded-For': ' 127.0.0.1', 'Max-Forwards': '10', 'Cookie': > >> 'wstyle=; > >> __ac="YWRtaW46bWF0cml4"; > >> tree-s="eJzT0MgpMOQKVneEAKcAN19bda4CI67EkgJjLj0AegYHmA"', > >> 'Referer': ' http://localhost/', 'Accept-Charset': > >> 'ISO-8859-7,utf-8;q=0.7,*;q=0.7', 'Accept-Encoding': 'gzip,deflate', > >> 'Accept-Language': 'el,en-us;q=0.7 ,en;q=0.3', 'Accept': > >> 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5', > >> 'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: > >> 1.8.0.8) > >> Gecko/20061030 SeaMonkey/1.0.6', 'Host': 'localhost'}, referer: > >> http://localhost/ > >> ...(multiple times)... > >> > >> Which is right i think... But my backend server gets this request: > >> > >> GET > >> /VirtualHostBase/http/localhost:80/Editorial/VirtualHostRoot/ > >> HTTP/1.1 > >> Host: localhost:8081 > >> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.8) > >> Gecko/20061030 SeaMonkey/1.0.6 > >> Accept: > >> text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 > >> Accept-Language: el,en-us;q=0.7,en;q=0.3 > >> Accept-Encoding: gzip,deflate > >> Accept-Charset: ISO-8859-7,utf-8;q= 0.7,*;q=0.7 > >> Referer: http://localhost/ > >> Cookie: wstyle=; __ac="YWRtaW46bWF0cml4"; > >> tree-s="eJzT0MgpMOQKVneEAKcAN19bda4CI67EkgJjLj0AegYHmA" > >> Max-Forwards: 10 > >> X-Forwarded-For: 127.0.0.1 > >> X-Forwarded-Host: localhost > >> X-Forwarded-Server: luna > >> > >> Thank you in advance, > >> > >> Ioannis Stavrinos > >> > >> _______________________________________________ > >> Mod_python mailing list > >> Mod_python at modpython.org > >> http://mailman.modpython.org/mailman/listinfo/mod_python > >> > >> > > > > _______________________________________________ > Mod_python mailing list > Mod_python at modpython.org > http://mailman.modpython.org/mailman/listinfo/mod_python >
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