Description
Using nginx with X-Accel-Redirect as documented within lib/rack/sendfile.rb does not seem to work for files which contain a % or ? character in their name.
How to reproduce:
- Setup nginx with a location and X-Accel-Mapping as documented to allow sending files from
/data/ - Create a file
/data/sample/Report90%.pdf - Trigger sendfile with the proper headers and file location pointing to
/data/sample/Report90%.pdf
Nginx will accept the internal X-Accel-Redirect request but fail to read the file /data/sample/Report90%.pdf and return a 404 error to the client. This does not happen when the % is removed from the file name.
We tried to replace the % character with %25 (and therefore triggering X-Accel-Mapping with a path of /data/sample/Report90%25.pdf) which seems to work.
According to the changelog of nginx as of 2014 for version 1.5.9: now nginx expects escaped URIs in "X-Accel-Redirect" headers.