Check 2chars

go.mod

@@ -0,0 +1,11 @@
+module godomainchecker
+
+go 1.17
+
+require (
+	github.com/likexian/gokit v0.25.6 // indirect
+	github.com/likexian/whois v1.12.4 // indirect
+	github.com/likexian/whois-parser v1.22.0 // indirect
+	golang.org/x/net v0.0.0-20210929193557-e81a3d93ecf6 // indirect
+	golang.org/x/text v0.3.6 // indirect
+)

go.sum

@@ -0,0 +1,11 @@
+github.com/likexian/gokit v0.25.6 h1:DZuMrmfgXErhdfI9SIS6tVMZ5QbRMP3aruHNq5lGcMI=
+github.com/likexian/gokit v0.25.6/go.mod h1:q1LC+z3cBymJuE4oeiWiIPhJceUa0nptg4Id8tSzjZI=
+github.com/likexian/whois v1.12.4 h1:NqUNc9LC4G5Fq62o6a3nw/HO8haJDULEudcJPyPMwXg=
+github.com/likexian/whois v1.12.4/go.mod h1:SfdfmB72mSdrC/8eLjYkeaEJp9t1MPAgp0ebCzZfYXw=
+github.com/likexian/whois-parser v1.22.0 h1:YXSNvDNBy+cZG+2JZWJvWbMHrDY35r6Etpu1TNDPYW0=
+github.com/likexian/whois-parser v1.22.0/go.mod h1:2bJqtH4tNPanBvOp/3Kj3Sd12S9vxTbsJ0+0zjRc3ow=
+golang.org/x/net v0.0.0-20210929193557-e81a3d93ecf6 h1:Z04ewVs7JhXaYkmDhBERPi41gnltfQpMWDnTnQbaCqk=
+golang.org/x/net v0.0.0-20210929193557-e81a3d93ecf6/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

main.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/likexian/whois"
+	"github.com/likexian/whois-parser"
+)
+
+func main() {
+	freeDomains := []string{}
+
+	domainsToCheck := generateInput()
+
+	for _, domain := range domainsToCheck {
+		resp, err := checkDomain(domain)
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		if resp {
+			log.Printf("%s is free!", domain)
+			freeDomains = append(freeDomains, domain)
+		} else {
+			log.Printf("%s is not free!", domain)
+		}
+	}
+
+	log.Println()
+	log.Println("Free Domains:")
+
+	for _, v := range freeDomains {
+		log.Print(v)
+	}
+
+}
+
+// checkDomain - True if available, error/false if not
+func checkDomain(domain string) (bool, error) {
+	time.Sleep(time.Second * 5)
+	resultRaw, err := whois.Whois(domain, "whois.srs.net.nz")
+	if err != nil {
+		return false, err
+	}
+
+	_, err = whoisparser.Parse(resultRaw)
+	if err != nil {
+		if err.Error() == "whoisparser: domain is not found" {
+			return true, nil
+		}
+
+		return false, err
+	}
+
+	return false, err
+}
+
+func generateInput() []string {
+	output := []string{}
+
+	for o := 'a'; o <= 'z'; o++ {
+		for r := 'a'; r <= 'z'; r++ {
+			output = append(output, fmt.Sprintf("%c", o)+fmt.Sprintf("%c", r))
+		}
+	}
+
+	return output
+}