On Mon, 23 Mar 2009, Mark Copper wrote: > I know it's inefficient, and once I saw where Dave Rolsky mentioned that > he used a separate handler to serve images, but for me Mason was very handy > for serving scaled images. A dhandler in the thumb directory could > serve images /docroot/thumb/pic.jpeg?scale=100&quality=75 scaled from > images stored in an images directory and m->cache made saving the scaled > images soo easy. I need to replace it for other reasons, but it sure was a > nice way to get started.
My name was invoked so ... The way I generally approach the problem of serving binary data that needs some dynamic generation is simple. I generate the data in the current request, write it to disk in a location servable by the static web server, and include a proper URI in the response. For an image that means the image src tag, for a pdf or zip file it might be a redirect. This lets you cache things just fine, and you don't eat up memory jamming things into your cache, bloating your persistent Perl interpreter. The big issue is security. If the thing you're serving has to be access controlled, it's more of a problem. One possible solution is to put it in a subdirectory that's an SHA1 digest of some server side secret and some part of the content (the filename would make sense). This is, technically, security by obscurity, but realistically it's not guessable. If that's not good enough you might have to serve it from the web application side. If you're running under mod_perl, you could use a PerlAuthzHandler to do the auth and let Apache's built-in static file handling serve the content. Otherwise under mod_perl you can use $r->send_fd/sendfile. The worst thing you can do is generate/read the whole thing into memory and then spit it out. -dave /*============================================================ http://VegGuide.org http://blog.urth.org Your guide to all that's veg House Absolute(ly Pointless) ============================================================*/ ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Mason-users mailing list Mason-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mason-users
