UriPatternMatcher

A simple URI path matcher with wildcard (*) support, useful for filters that need to apply only to a set of routes. Pattern matching is case-insensitive. A pattern matches when the URI starts with the pattern's prefix (extended to the path boundary, the query string, or end of string).

"/login"   matches  "/login", "/login?a=b", "/login/me"
"/auth*"   matches  "/authenticate", "/auth/1"
"/auth/*"  matches  "/auth/", "/auth/1"  (but not "/authenticate")

The matcher rejects overlapping patterns at construction time (e.g. /auth and /auth/foo).

Example

val publicPaths = UriPatternMatcher("/login", "/logout", "/static/*")

val filter = Filter { next ->
    { request ->
        if (publicPaths.matches(request) || request.hasPrincipal) next(request)
        else Response(Status.FORBIDDEN)
    }
}

Declaration

data class UriPatternMatcher(val patterns: Set<String>) {
    constructor(vararg patterns: String)
    fun matches(uri: String): Boolean
    fun matches(request: Request): Boolean
}