• 0

.htaccess for missing images with wildcards


Question

I have a folder full of product images. And the image file name is something akin to:
 

/images/product_15_small.jpg
/images/product_15_large.jpg
/images/product_201_small.jpg
/images/product_201_large.jpg
/images/product_47502_small.jpg
/images/product_47502_large.jpg

 

If there is an error in the upload process and one of the files doesn't get created, say "/images/product_201_large.jpg", I'd like Apache to replace that file with this file: "/images/missing_0_large.jpg".  And in the case of the smaller image, I want it to be replaced with: "/images/missing_0_small.jpg".

 

I'm not sure how to do conditional RedirectMatch using HT access and a wildcard. Could someone guide me?  Here are the rules that I've tried to experiment with but none of them worked:

 

#TEST 1:
RedirectMatch 404 ^images/product_(\d+)_small.jpg	images/missing_(\d+)_small.jpg
RedirectMatch 404 ^images/product_(\d+)_large.jpg	images/missing_(\d+)_large.jpg


#TEST 2:
RewriteRule ^images/product_(\d+)_small.jpg		images/missing_(\d+)_small.jpg [L]
RewriteRule ^images/product_(\d+)_large.jpg		images/missing_(\d+)_large.jpg [L]

 

From the example above, "TEST 1" doesn't work however it seems to be the most logical format.

"TEST 2" does work, but it always redirects, and I want it to only redirect when the target file is missing (during a 404).

 

Please can an Apache expert help me?

6 answers to this question

Recommended Posts

  • 0

If you add

RewriteCond %{REQUEST_FILENAME} -f

above each of your RewriteRule lines from "Test 2", that should do what you're after. It's basically adding a condition to the rule, that makes the rule only apply if the file doesn't exist

  • 0

Thanks Dave,

So I added this to the .htaccess file:

 

<IfModule mod_rewrite.c>
  RewriteCond %{REQUEST_FILENAME} -f
  RewriteRule ^images/product_(\d+)_small.jpg	images/missing_0_small.jpg [L]
  RewriteRule ^images/product_(\d+)_large.jpg	images/missing_0_large.jpg [L]
 </IfModule>

 

But I still get a standard 404 error when I access files such as this missing image:

 

https://localhost/images/product_123_large.jpg

 

  • 0

You need the condition for each rewrite rule, otherwise it only applies to the first

 

  RewriteCond %{REQUEST_FILENAME} -f
  RewriteRule ^images/product_(\d+)_small.jpg	images/missing_0_small.jpg [L]
  RewriteCond %{REQUEST_FILENAME} -f
  RewriteRule ^images/product_(\d+)_large.jpg	images/missing_0_large.jpg [L]

 

  • 0

Ah, my mistake, try this

 

RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^images/product_(\d+)_small.jpg	images/missing_0_small.jpg [L]
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteRule ^images/product_(\d+)_large.jpg	images/missing_0_large.jpg [L]

 

The ! makes the condition negative

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