Allow dynamic file-based checks in router

[gber]

It would be useful if the new router supported dynamically checking for files like Apache's mod_rewrite with

RewriteCond         %{DOCUMENT_ROOT}/%{REQUEST_URI} -d/-f/-s/-l/-x

or nginx with

if (-f/-e/-x $request_filename) {

Note that in contrast to if-dir/if-file the checks would have to be performed at any request rather than during evaluation of the configuration file.

[prymitive]

Doesn't --static-check, --static-map or other ---static-* options do that already?
Routers doesn't do anything more than passing requests to backend nodes, those nodes doesn't need to be on the same machine.

[unbit]

I think he is referring to internal routing.

Basically it requires something like that:

route-if-file-exists = ${DOCUMENT_ROOT}/${REQUEST_URI} goto:foobar

i will check if there is a way to accomplish that without adding a new option

[gber]

Yes, exactly that.

[gber]

It'd be nice it it also allowed to check for directories/executable files as with mod_rewrite. That's e.g. useful for adding missing slashes:

route = /$ continue:
route-if-dir-exists = ${DOCUMENT_ROOT}/${REQUEST_URI} redirect-permanent:${DOCUMENT_ROOT}/${REQUEST_URI}/

[unbit]

Added the "route_condition" subsystem. You can add new conditions with plugins too.

Currently supported conditions:

exists
isfile
isdir
islink

examples:

route-if = exists:${DOCUMENT_ROOT}/${REQUEST_URI} static:${DOCUMENT_ROOT}/${REQUEST_URI}
route-if = isfile:/var/www/${PATH_INFO} log:oops
route-if-not = exists:/test/foo break:500

[gber]

Awesome! Would you mind adding an isexec condition?

[unbit]

pretty easy:

a2e4c6e

[gber]

Thanks again.