Regular expression for url longer than 3 characters Nginx

Asked Oct 10 '22 at 08:16

Active Oct 10 '22 at 13:36

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There is a website site.ru/ I need to write a regular expression where pages longer than 3 characters only work after the first slash. If in this case there are other pages after the slash, then 404 was returned. For example

site.ru/demo -> site.ru/demo
site.ru/dem/dem -> site.ru/dem/dem
site.ru/demo/{string of any length} -> 404

I wrote the following regular expression,

map $example {
            default 0;
            "~[^\/]\w.{3,}" 1;
}

but it works on both site.ru/demo and site.ru/demo/demo. Where is my mistake?

edited Oct 10 '22 at 13:36

asked Oct 10 '22 at 08:16

All In

1

`/demo/demo` is probably a bad example, which one causes it to fail? `/demo/dem` or `/dem/demo`? – Richard Smith Oct 10 '22 at 08:57
@Richard Smith added update: can be a string of any length – All In Oct 10 '22 at 13:37
Try: "~^/\w{4,}/" – Richard Smith Oct 10 '22 at 13:47
I don't know but this grabs urls; can be a good starting point I guess; `"(http|https)://[a-zA-Z0-9./?=_%:-]*"` `tested in bash` – William Martens Oct 10 '22 at 15:44
Can you elaborate where the `$example` variable is used? That affects what has to be considered when writing the regex? Also, you can use https://regexr.com to play with the regular expressions. – Tero Kilkanen Oct 11 '22 at 22:21

Regular expression for url longer than 3 characters Nginx

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