Nginx regular expression in location not working

Question

The following RE matches "http://my.domain/video.mp4" successfully but cannot match "http://my.domain/abc/video.mp4".

    location ~ "^.+(mp4|mkv|m4a)$" {
        root /home/user/Videos;
    }

The log of Nginx reads

[05/May/2021:12:29:25 +0800] "GET /video.mp4 HTTP/1.1" status: 206, body_bytes: 1729881
[05/May/2021:12:29:46 +0800] "GET /abc/video.mp4 HTTP/1.1" status: 404, body_bytes: 555

This is wired. Actually, I want URLs under "/service1/" to be mapped to user1's directory and URLs under "/service2" to be mapped to user2's. So I write

    location ~ "^/service1/.+(mp4|mkv|m4a)$" {
        root /home/user1/Videos;
    }
    location ~ "^/service2/.+(mp4|mkv|m4a)$" {
        root /home/user2/Videos;
    }

And as the first example, this config cannot match anything.

I searched a lot on google. No answer can explain this. I want to get it to work. Thanks!

Youran · Accepted Answer · 2021-05-09 03:17:03Z

1

I know where the problem is. In my second config, if I require "/service1/abcd.mp4", Nginx will try to locate it at "/home/user1/Videos/service1/abcd.mp4" but actually the file is at "/home/user1/Videos/abcd.mp4". Theoretically, I can bypass it by rewrite

location ~ "^/service1/.+(mp4|mkv|m4a)$" {
    rewrite "^/service1/(.+(mp4|mkv|m4a))$" "$1"; 
    root /home/user1/Videos;
}
location ~ "^/service2/.+(mp4|mkv|m4a)$" {
    rewrite "^/service2/(.+(mp4|mkv|m4a))$" "$1"; 
    root /home/user2/Videos;
}

But this is not working. I am getting crazy.

answered May 9, 2021 at 3:17

Youran

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