Simple FI-domain availability checking
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commit
d40bfca474
8 changed files with 267 additions and 0 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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@ -0,0 +1,2 @@
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/config.json
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/nexsis
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4
Makefile
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4
Makefile
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@ -0,0 +1,4 @@
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run:
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go run main.go
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build:
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go build -v -ldflags "-s -w"
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4
config.json.example
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4
config.json.example
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{
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"port": 6900,
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"siteName": "NexSIS"
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}
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16
go.mod
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16
go.mod
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module nexsis
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go 1.23.0
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require (
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github.com/dustin/go-humanize v1.0.1 // indirect
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github.com/google/uuid v1.6.0 // indirect
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github.com/mattn/go-isatty v0.0.20 // indirect
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github.com/ncruces/go-strftime v0.1.9 // indirect
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github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
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golang.org/x/sys v0.22.0 // indirect
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modernc.org/libc v1.55.3 // indirect
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modernc.org/mathutil v1.6.0 // indirect
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modernc.org/memory v1.8.0 // indirect
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modernc.org/sqlite v1.34.5 // indirect
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)
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21
go.sum
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21
go.sum
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github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
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github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
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github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
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github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
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github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
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github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
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github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
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github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
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github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
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golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
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golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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modernc.org/libc v1.55.3 h1:AzcW1mhlPNrRtjS5sS+eW2ISCgSOLLNyFzRh/V3Qj/U=
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modernc.org/libc v1.55.3/go.mod h1:qFXepLhz+JjFThQ4kzwzOjA/y/artDeg+pcYnY+Q83w=
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modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
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modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
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modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E=
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modernc.org/memory v1.8.0/go.mod h1:XPZ936zp5OMKGWPqbD3JShgd/ZoQ7899TUuQqxY+peU=
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modernc.org/sqlite v1.34.5 h1:Bb6SR13/fjp15jt70CL4f18JIN7p7dnMExd+UFnF15g=
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modernc.org/sqlite v1.34.5/go.mod h1:YLuNmX9NKs8wRNK2ko1LW1NGYcc9FkBO69JOt1AR9JE=
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23
index.html
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23
index.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<link rel="stylesheet" type="text/css" href="/static/style.css">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>{{.Title}}</title>
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</head>
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<body>
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<div class="cntrbox">
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<h1>{{.Title}}</h1>
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<p>
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Will be able to manage. Or not.
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</p>
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<footer>
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<hr>
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<small>
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2015 Jarkko Toivanen
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</small>
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</footer>
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</div>
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</body>
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</html>
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183
main.go
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183
main.go
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package main
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import (
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"database/sql"
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"encoding/json"
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"encoding/xml"
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"fmt"
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"html/template"
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"log"
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"net"
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"net/http"
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"os"
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"io"
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"strings"
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"bytes"
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"errors"
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_ "modernc.org/sqlite"
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)
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type Config struct {
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Port uint
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SiteName string
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}
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type page struct {
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Title string
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}
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type xmlDomain struct {
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authority string
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registryType string
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entityClass string
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entityName string
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}
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var C = Config{}
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var db *sql.DB
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func main() {
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var err error
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domain := "snuff.fi"
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av, err := checkDomainAvailability(domain)
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if err != nil {
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log.Fatal(err)
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return
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}
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fmt.Printf("Domain '%s' available: %t\n", domain, av)
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return
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// Load config
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fmt.Println("Loading config.json")
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cfgfile, err := os.Open("config.json")
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if err != nil {
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log.Fatal("Error reading config.json!")
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return
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}
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defer cfgfile.Close()
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decoder := json.NewDecoder(cfgfile)
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//Config := Config{}
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err = decoder.Decode(&C)
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if err != nil {
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log.Fatal("Can't decode config.json!")
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return
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}
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db, err = sql.Open("sqlite", "database.db")
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if err != nil {
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log.Fatal(err)
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}
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fmt.Printf("Starting listener on :%v", C.Port)
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http.Handle("/static/", http.FileServer(http.Dir("./")))
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http.HandleFunc("/", httpRootHandler)
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err = http.ListenAndServe(fmt.Sprintf(":%v", C.Port), nil)
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if err != nil {
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log.Fatal(err)
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}
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db.Close()
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}
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func httpRootHandler(w http.ResponseWriter, r *http.Request) {
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t, _ := template.ParseFiles("index.html")
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// var err := do_get_stuff()
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// if err != nil {
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// log.Fatal(err)
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// http.Error(w, http.StatusText(500), 500)
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// return
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// }
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var p page
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p.Title = C.SiteName;
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t.Execute(w, p)
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}
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func checkDomainAvailability(domain string) (bool, error) {
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dasHost := "das.domain.fi";
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dasPort := 715
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dasAddr := fmt.Sprintf("%s:%d", dasHost, dasPort)
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request := fmt.Sprintf(`<?xml version="1.0" encoding="UTF-8"?>
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<iris1:request xmlns:iris1="urn:ietf:params:xml:ns:iris1">
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<iris1:searchSet>
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<iris1:lookupEntity registryType="dchk1" entityClass="domain-name" entityName="%s"/>
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</iris1:searchSet>
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</iris1:request>`, domain)
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conn, err := net.Dial("udp", dasAddr)
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if err != nil {
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log.Fatal(err)
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return false, err
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}
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defer conn.Close()
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fmt.Fprintf(conn, request)
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response := make([]byte, 1024)
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_, err = conn.Read(response)
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if err != nil {
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log.Fatal(err)
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}
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response = bytes.Trim(response, "\x00")
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// Response can be:
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// - active: already in use
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// - available: go ahead and grab it while you can
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// - invalid: malformed request: maybe check domain has .fi in the end
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isAvailable, err := xmlCheckTag(string(response), "available")
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if err != nil {
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log.Fatal(err)
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return false, err
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} else if isAvailable {
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// Domain is available
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return true, nil
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}
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isActive, err := xmlCheckTag(string(response), "active")
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if err != nil {
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log.Fatal(err)
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return false, err
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} else if isActive {
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// Domain is already registered taken
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return false, nil
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}
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isInvalid, err := xmlCheckTag(string(response), "invalid")
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if err != nil {
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log.Fatal(err)
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return false, err
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} else if isInvalid {
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// We got bonked for our request
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return false, errors.New("Request or domain invalid")
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}
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// Execution should not lead here but hey might as well error it out
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return false, errors.New("Error: Status field not found")
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}
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func xmlCheckTag(src, tag string) (bool, error) {
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// Thanks icza for your stackoverflow
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// https://stackoverflow.com/a/51649834
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decoder := xml.NewDecoder(strings.NewReader(src))
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for {
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t, err := decoder.Token()
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if err != nil {
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if err == io.EOF {
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return false, nil
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}
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return false, err
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}
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if se, ok := t.(xml.StartElement); ok {
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if se.Name.Local == tag {
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return true, nil
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}
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}
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}
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}
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14
static/style.css
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14
static/style.css
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body {
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background-color: #000000;
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color: #ffffff;
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font-family: "sans-serif";
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}
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a, a:visited, a:active {
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color: #00ffff;
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}
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.cntrbox {
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display: grid;
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place-content: center;
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}
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