Christian Galo
47a75e0873
- Add SQL queries and generated methods for Create/List/Update products - Add CountWorkspacesByOrgID and ListResourceKeys querier methods - Register workspace partials and operator routes for products and sets - Add workspace UI section and operator tabs; tweak grant/site forms - Replace isValidDNSLabel with validateDNSLabel for site validation
47 lines
1.7 KiB
Go
47 lines
1.7 KiB
Go
package server
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import (
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"fmt"
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"regexp"
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)
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// validDNSLabel enforces the DNS label rules from RFC 1035 §2.3.1
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// (as amended by RFC 1123 §2.1): lowercase alphanumeric, may contain
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// hyphens in the middle, must start and end with a letter or number.
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// 1-63 chars.
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//
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// Callers must normalize input with strings.ToLower before calling
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// isValidDNSLabel, as this pattern only matches lowercase.
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var validDNSLabel = regexp.MustCompile(`^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?$`)
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// isValidDNSLabel reports whether name is a valid DNS label.
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func isValidDNSLabel(name string) bool {
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return validDNSLabel.MatchString(name)
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}
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// validateDNSLabel validates a DNS label and returns a user-facing error
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// message, or "" if the label is valid. It checks length before pattern
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// to provide specific error messages per RFC 1035 §2.3.1.
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func validateDNSLabel(name string) string {
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if len(name) > 63 {
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return "Site name exceeds the 63-character limit"
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}
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if !validDNSLabel.MatchString(name) {
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return "Site name may only contain lowercase letters, numbers, and hyphens, and must start and end with a letter or number"
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}
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return ""
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}
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// validateFQDN checks that the assembled FQDN (label + "." + farmDomain)
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// does not exceed 253 characters per RFC 1035 §2.3.4. Returns a user-facing
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// error message, or "" if valid. The 63-char label limit already prevents
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// overflow for any reasonable farm domain; this is a defense-in-depth measure.
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func validateFQDN(label, farmDomain string) string {
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// FQDN = label + "." + farmDomain
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fqdnLen := len(label) + 1 + len(farmDomain)
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if fqdnLen > 253 {
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return fmt.Sprintf("The full domain name (%s.%s) exceeds the 253-character limit", label, farmDomain)
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}
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return ""
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}
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