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disposable.go
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/
disposable.go
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package disposable
import (
"io/ioutil"
"strings"
)
const inFile = "domains.txt"
var domainMap = map[string]struct{}{}
func init() {
dat, err := ioutil.ReadFile(inFile)
if err != nil {
panic("Missing (disposable email) domains file")
}
for _, domain := range strings.Split(string(dat), "\n") {
domainMap[domain] = struct{}{}
}
}
// Domain tests whether a string is among the known set of disposable mailboxes
func Domain(d string) bool {
if _, ok := domainMap[d]; ok {
return true
}
return false
}
// DomainMap returns all known domains in form of a map (for O(1)-ish search)
func DomainMap() map[string]struct{} {
return domainMap
}