38 lines
848 B
Go
38 lines
848 B
Go
package validation
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import (
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"net/mail"
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"strings"
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)
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func IsAuthorizedSender(address, account string, allowLocalAlias bool, domains []string) bool {
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address = strings.TrimSpace(address)
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parsed, err := mail.ParseAddress(address)
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if err != nil || parsed.Address != address {
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return false
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}
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at := strings.LastIndexByte(address, '@')
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if at <= 0 || at == len(address)-1 || strings.Contains(address[:at], "@") {
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return false
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}
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domain, err := NormalizeDomain(address[at+1:])
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if err != nil {
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return false
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}
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configured := false
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for _, candidate := range domains {
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normalized, normalizeErr := NormalizeDomain(candidate)
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if normalizeErr == nil && domain == normalized {
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configured = true
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break
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}
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}
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if !configured {
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return false
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}
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return allowLocalAlias || strings.EqualFold(address[:at], strings.TrimSpace(account))
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}
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