cloudfoundry-incubator/stratos

package stringutils

import (
    "net/url"
    "strings"
    "unicode"
)

// ArrayContainsString checks the string array to see if it contains the specifed value
func ArrayContainsString(a []string, x string) bool {
    for _, n := range a {
        if x == n {
            return true
        }
    }
    return false
}

// RemoveSpaces removes all whitespace from the supplied string
func RemoveSpaces(str string) string {
    return strings.Map(func(r rune) rune {
        if unicode.IsSpace(r) {
            return -1
        }
        return r
    }, str)
}

// CompareURL compares two URLs, taking into account default HTTP/HTTPS ports and ignoring query string. Allows `b` to contain a wildcard `*`
// to match any path of `a`s
func CompareURL(a, b string) bool {

    ua, err := url.Parse(a)
    if err != nil {
        return false
    }

    ub, err := url.Parse(b)
    if err != nil {
        return false
    }

    aPort := getPort(ua)
    bPort := getPort(ub)
    return ua.Scheme == ub.Scheme && ua.Hostname() == ub.Hostname() && aPort == bPort && (ua.Path == ub.Path || ub.Path == "/*")
}

func getPort(u *url.URL) string {
    port := u.Port()
    if len(port) == 0 {
        switch u.Scheme {
        case "http":
            port = "80"
        case "https":
            port = "443"
        default:
            port = ""
        }
    }

    return port
}