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Retrieve Name servers displayed on multiple lines #3

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Retrieve Name servers displayed on multiple lines #3

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bb74bca
Retrieve Name servers displayed on multiple lines
HopHouse Nov 20, 2020
ef4b2ee
Change regex for "Name Server"line to also match "nserver" name in wh…
HopHouse Dec 1, 2020
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21 changes: 18 additions & 3 deletions extra.go
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
package whois

import (
"bufio"
"regexp"
"strings"
)
Expand All @@ -24,9 +25,7 @@ func parser(re *regexp.Regexp, group int, data string) (result []string) {
if len(found) > 0 {
for _, one := range found {
if len(one) >= 2 && len(one[group]) > 0 {

result = appendIfMissing(result, one[group])

}
}
}
Expand All @@ -36,9 +35,25 @@ func parser(re *regexp.Regexp, group int, data string) (result []string) {

//Parse uniq name servers from whois
func ParseNameServers(whois string) []string {

resultNameServers := parser(regexp.MustCompile(`(?i)^N(?:.*)Server:\s+(.*?)(?:\s|$)`), 1, whois)

if len(resultNameServers) == 0 {
var re = regexp.MustCompile(`(?i)(Name servers:\n(?:\s+(?:[a-zA-Z-_\.0-9]+)\n)+)`)
nameServersString := re.FindString(whois)

return parser(regexp.MustCompile(`(?i)Name Server:\s+(.*?)(\s|$)`), 1, whois)
scanner := bufio.NewScanner(strings.NewReader(nameServersString))
// Read first line, ie. Name Servers:
scanner.Scan()

// Iterate over Name Servers
for scanner.Scan() {
resultNameServers = append(resultNameServers, strings.TrimSpace(scanner.Text()))
}

}

return resultNameServers
}

//Parse uniq domain status(codes) from whois
Expand Down