I'd like for any url that doesn't hit an existing file, to do a lookup on the other possible cases and see if those files exist, and if so, 302 to them.
If that's not possible, then I'm ok with these compromises:
For example http://example.com/CoOl/PaTH/CaMELcaSE should redirect to http://example.com/cool/path/camelCase (assuming the latter exists).
but of course a full solution is much more useful to me and others
CheckSpelling on
Matches files and directories. See the documentation for details.
I don't have Apache handy to test, but some combination of these rules should do what you want:
RewriteEngine on RewriteMap lower int:tolower RewriteCond ${lower:%{REQUEST_URI}} -U RewriteRule [A-Z] ${lower:%{REQUEST_URI}} [R=302,L]
I don't know if the RewriteMap can be applied in a condition, or if it only applies to a rule. These are based on experts exchange accepted answer and a small orange forum discussion.
Your "ideal" solution is probably not possible unless you can enumerate every valid page on your site. If you only have a few valid pages, a combination of RewriteMap and a text map will do exactly what you need. If there are hundreds / thousands of pages you may need to write a script and use the prg
directive.
If you can't identify every valid page, you would need to try every variant in case. Consider your URL as a binary string, with 0 for lowercase letter and 1 for uppercase. Just from your simple example you'd have to test 2^17 variations, 128k pages.
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