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authorJeroen Wijenbergh <jeroen.wijenbergh@geant.org>2025-08-25 10:59:37 +0200
committerJeroen Wijenbergh <jeroen.wijenbergh@geant.org>2025-08-25 13:06:41 +0200
commit27b95b4911da055fe9b5fb37b5fb4a33eda6b989 (patch)
treef6eb1143fa9bd2995d671b71d75c950e2c703660 /util
parentb4f4f5600298436c63b89f289c318d777300c499 (diff)
All: Remove util packages
Was giving linting errors and it's not a good idea anyways
Diffstat (limited to 'util')
-rw-r--r--util/util.go84
-rw-r--r--util/util_test.go126
2 files changed, 0 insertions, 210 deletions
diff --git a/util/util.go b/util/util.go
deleted file mode 100644
index 4609199..0000000
--- a/util/util.go
+++ /dev/null
@@ -1,84 +0,0 @@
-// Package util defines public utility functions to be used by applications
-// these are outside of the client package as they can be used even if a client hasn't been created yet
-package util
-
-import (
- "net"
- "strings"
-
- "codeberg.org/eduVPN/eduvpn-common/i18nerr"
-)
-
-// CalculateGateway takes a CIDR encoded subnet `cidr` and returns the gateway and an error
-func CalculateGateway(cidr string) (string, error) {
- _, ipn, err := net.ParseCIDR(cidr)
- if err != nil {
- return "", i18nerr.WrapInternalf(err, "failed to parse CIDR for calculating gateway: %v", cidr)
- }
-
- ret := make(net.IP, len(ipn.IP))
- copy(ret, ipn.IP)
-
- for i := len(ret) - 1; i >= 0; i-- {
- ret[i]++
- if ret[i] > 0 {
- break
- }
- }
-
- if !ipn.Contains(ret) {
- return "", i18nerr.Newf("IP network does not contain incremented IP: %v", ret)
- }
-
- return ret.String(), nil
-}
-
-// GetLanguageMatched uses a map from language tags to strings to extract the right language given the tag
-// It implements it according to https://github.com/eduvpn/documentation/blob/dc4d53c47dd7a69e95d6650eec408e16eaa814a2/SERVER_DISCOVERY.md#language-matching
-func GetLanguageMatched(langMap map[string]string, langTag string) string {
- // If no map is given, return the empty string
- if len(langMap) == 0 {
- return ""
- }
- // Try to find the exact match
- if val, ok := langMap[langTag]; ok {
- return val
- }
- // Try to find a key that starts with the OS language setting
- for k := range langMap {
- if strings.HasPrefix(k, langTag) {
- return langMap[k]
- }
- }
- // Try to find a key that starts with the first part of the OS language (e.g. de-)
- pts := strings.Split(langTag, "-")
- // We have a "-"
- if len(pts) > 1 {
- for k := range langMap {
- if strings.HasPrefix(k, pts[0]+"-") {
- return langMap[k]
- }
- }
- }
- // search for just the language (e.g. de)
- for k := range langMap {
- if k == pts[0] {
- return langMap[k]
- }
- }
-
- // Pick one that is deemed best, e.g. en-US or en, but note that not all languages are always available!
- // We force an entry that is english exactly or with an english prefix
- for k := range langMap {
- if k == "en" || strings.HasPrefix(k, "en-") {
- return langMap[k]
- }
- }
-
- // Otherwise just return one
- for k := range langMap {
- return langMap[k]
- }
-
- return ""
-}
diff --git a/util/util_test.go b/util/util_test.go
deleted file mode 100644
index fd35088..0000000
--- a/util/util_test.go
+++ /dev/null
@@ -1,126 +0,0 @@
-package util
-
-import (
- "testing"
-
- "codeberg.org/eduVPN/eduvpn-common/internal/test"
-)
-
-func TestCalculateGateway(t *testing.T) {
- cases := []struct {
- in string
- want string
- err string
- }{
- // normal cases
- {
- in: "10.10.10.5/24",
- want: "10.10.10.1",
- err: "",
- },
- {
- in: "10.10.10.130/25",
- want: "10.10.10.129",
- err: "",
- },
- {
- in: "fd42::5/112",
- want: "fd42::1",
- err: "",
- },
- {
- in: "5502:df9::/64",
- want: "5502:df9::1",
- err: "",
- },
- // unrealistic scenario but we have to handle these!
- {
- in: "5502:df9::0/128",
- want: "",
- err: "IP network does not contain incremented IP: 5502:df9::1",
- },
- {
- in: "5502:df9::ffff/128",
- want: "",
- err: "IP network does not contain incremented IP: 5502:df9::1:0",
- },
- {
- in: "10.0.0.0/32",
- want: "",
- err: "IP network does not contain incremented IP: 10.0.0.1",
- },
- {
- in: "10.0.0.255/32",
- want: "",
- err: "IP network does not contain incremented IP: 10.0.1.0",
- },
- // parsing errors
- {
- in: "10.0.0.1",
- want: "",
- err: "An internal error occurred. The cause of the error is: invalid CIDR address: 10.0.0.1.",
- },
- {
- in: "bla",
- want: "",
- err: "An internal error occurred. The cause of the error is: invalid CIDR address: bla.",
- },
- {
- in: "5502:df9::ffff",
- want: "",
- err: "An internal error occurred. The cause of the error is: invalid CIDR address: 5502:df9::ffff.",
- },
- }
-
- for _, c := range cases {
- got, err := CalculateGateway(c.in)
- test.AssertError(t, err, c.err)
- if got != c.want {
- t.Fatalf("got: %v not equal to want: %v", got, c.want)
- }
- }
-}
-
-func TestGetLanguageMatched(t *testing.T) {
- // exact match
- returned := GetLanguageMatched(map[string]string{"en": "test", "de": "test2"}, "en")
- if returned != "test" {
- t.Fatalf("Got: %s, want: %s", returned, "test")
- }
-
- // starts with language tag
- returned = GetLanguageMatched(map[string]string{"en-US-test": "test", "de": "test2"}, "en-US")
- if returned != "test" {
- t.Fatalf("Got: %s, want: %s", returned, "test")
- }
-
- // starts with en-
- returned = GetLanguageMatched(map[string]string{"en-UK": "test", "en": "test2"}, "en-US")
- if returned != "test" {
- t.Fatalf("Got: %s, want: %s", returned, "test")
- }
-
- // exact match for en
- returned = GetLanguageMatched(map[string]string{"de": "test", "en": "test2"}, "en-US")
- if returned != "test2" {
- t.Fatalf("Got: %s, want: %s", returned, "test2")
- }
-
- // We default to english
- returned = GetLanguageMatched(map[string]string{"es": "test", "en": "test2"}, "nl-NL")
- if returned != "test2" {
- t.Fatalf("Got: %s, want: %s", returned, "test2")
- }
-
- // We default to english with a - as well
- returned = GetLanguageMatched(map[string]string{"est": "test", "en-": "test2"}, "en-US")
- if returned != "test2" {
- t.Fatalf("Got: %s, want: %s", returned, "test2")
- }
-
- // None found just return one
- returned = GetLanguageMatched(map[string]string{"es": "test"}, "en-US")
- if returned != "test" {
- t.Fatalf("Got: %s, want: %s", returned, "test")
- }
-}