Files
upaas/internal/handlers/app_name_validation_test.go
T
clawbot 23f378cfde
Check / check (pull_request) Successful in 4m19s
Allow dots in app names (closes #260)
App names may now contain dots, such as sneak.berlin: runs of
lowercase letters and numbers joined by single dots or by hyphens,
2 to 63 characters. Docker accepts every such name in the app's image
name, upaas-<name>; a dot needs a letter or number on both sides
because Docker requires it. The rule also keeps a dot off either end,
so the name is safe as a directory and log file name.

The new and edit app forms use the same pattern. Their old one was not
a valid regular expression under the flag browsers compile it with, so
browsers ignored it.

Model: opus-5-5
2026-10-02 06:41:30 +02:00

114 lines
3.2 KiB
Go

package handlers //nolint:testpackage // testing unexported validateAppName
import (
"bytes"
"strconv"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"sneak.berlin/go/upaas/internal/models"
"sneak.berlin/go/upaas/templates"
)
func TestValidateAppName(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input string
wantErr bool
}{
{"valid simple", "myapp", false},
{"valid with hyphen", "my-app", false},
{"valid with numbers", "app123", false},
{"valid two chars", "ab", false},
{"valid complex", "my-cool-app-v2", false},
{"valid all numbers", "123", false},
{"valid double hyphen", "my--app", false},
{"valid domain", "sneak.berlin", false},
{"valid two dots", "www.sneak.berlin", false},
{"valid dot and hyphen", "my-app.example.com", false},
{"empty", "", true},
{"single char", "a", true},
{"too long", "a" + string(make([]byte, 63)), true},
{
"exactly 63 chars",
"a23456789012345678901234567890123456789012345678901234567890123",
false,
},
{
"64 chars",
"a234567890123456789012345678901234567890123456789012345678901234",
true,
},
{"uppercase", "MyApp", true},
{"spaces", "my app", true},
{"starts with hyphen", "-myapp", true},
{"ends with hyphen", "myapp-", true},
{"underscore", "my_app", true},
{"two dots in a row", "a..b", true},
{"starts with dot", ".a", true},
{"ends with dot", "a.", true},
{"only dots", "..", true},
{"hyphen before dot", "a-.b", true},
{"hyphen after dot", "a.-b", true},
{"slash", "my/app", true},
{"path traversal", "../etc/passwd", true},
{"special chars", "app@name!", true},
{"unicode", "appñame", true},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
err := validateAppName(tt.input)
if (err != nil) != tt.wantErr {
t.Errorf("validateAppName(%q) error = %v, wantErr %v", tt.input, err, tt.wantErr)
}
})
}
}
func TestValidateAppNameErrorMentionsDots(t *testing.T) {
t.Parallel()
err := validateAppName("a..b")
require.ErrorIs(t, err, errAppNamePattern)
assert.Contains(t, err.Error(), "dots")
}
// TestAppFormsCheckAppNameLikeServer checks that the name field on the new
// and edit app forms has the server's pattern and length limits, and that
// its hint mentions dots.
func TestAppFormsCheckAppNameLikeServer(t *testing.T) {
t.Parallel()
pattern := strings.TrimSuffix(strings.TrimPrefix(validAppNameRe.String(), "^"), "$")
pages := map[string]map[string]any{
"app_new.html": {},
"app_edit.html": {dataKeyApp: &models.App{}},
}
for page, data := range pages {
var out bytes.Buffer
require.NoError(t, templates.GetParsed().ExecuteTemplate(&out, page, data))
// The name field and its hint, up to the end of their div.
_, field, found := strings.Cut(out.String(), `id="name"`)
require.True(t, found, page)
field, _, _ = strings.Cut(field, "</div>")
assert.Contains(t, field, `pattern="`+pattern+`"`, page)
assert.Contains(t, field, `minlength="`+strconv.Itoa(appNameMinLength)+`"`, page)
assert.Contains(t, field, `maxlength="`+strconv.Itoa(appNameMaxLength)+`"`, page)
assert.Contains(t, field, "hyphens, and dots", page)
}
}