diff options
Diffstat (limited to 'crtsh-pem2html.go')
-rw-r--r-- | crtsh-pem2html.go | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/crtsh-pem2html.go b/crtsh-pem2html.go deleted file mode 100644 index 109917c..0000000 --- a/crtsh-pem2html.go +++ /dev/null @@ -1,150 +0,0 @@ -package main - -import ( - "crypto/x509" - "encoding/pem" - "fmt" - "html/template" - "io/ioutil" - "os" - "sort" - "time" - - "./util" -) - -func handleErr(err error, str string, a ...interface{}) { - a = append([]interface{}{err}, a...) - if err != nil { - fmt.Fprintf(os.Stderr, str, a...) - os.Exit(1) - } -} - -func handleBool(ok bool, str string, a ...interface{}) { - if !ok { - fmt.Fprintf(os.Stderr, str, a...) - os.Exit(1) - } -} - -var tmpl = template.Must(template.New("pem2html"). - Funcs(template.FuncMap{ - "red": red, - "green": green, - "date": util.Date2HTML, - "datetime": util.DateTime2HTML, - "colorDatetime": util.DateTime2ColorHTML, - }).Parse(`<table class=sortable> - <caption> - <p>CT log (Updated {{.now | colorDatetime}})</p> - </caption> - <tr> - <th>Logged</th> - <th>NotBefore</th> - <th>NotAfter</th> - <th>Subject.CN</th> - <th>Issuer.O</th> - </tr> -{{range $cert := .certs}} - <tr> - <td style="background-color: {{$cert.Updated | green}}"><a target="_blank" href="{{$cert.Url}}">{{$cert.Updated | date}}</a></td> - <td style="background-color: {{$cert.X509.NotBefore | green}}"><a target="_blank" href="{{$cert.Url}}">{{$cert.X509.NotBefore | date}}</a></td> - <td style="background-color: {{$cert.X509.NotAfter | red }}"><a target="_blank" href="{{$cert.Url}}">{{$cert.X509.NotAfter | date}}</a></td> - <td><a target="_blank" href="{{$cert.Url}}">{{$cert.X509.Subject.CommonName}}</a></td> - <td><a target="_blank" href="{{$cert.Url}}">{{$cert.X509.Issuer.Organization}}</a></td> - </tr> -{{end}} -</table> -`)) - -func getNow() time.Time { - stat, err := os.Stdin.Stat() - if err == nil { - return stat.ModTime() - } else { - return time.Now() - } -} - -var now = getNow() - -func green(t time.Time) string { - max := byte(0xF3) - // When did we get the cert? - // - 30 days ago => 0 green - // - just now => max green - greenness := util.MapRange( - util.TimeRange{now.AddDate(0, 0, -30), now}, - util.ByteRange{0, max}, - t) - return fmt.Sprintf("#%02X%02X%02X", max-greenness, max, max-greenness) -} - -func red(t time.Time) string { - max := byte(0xF3) - // When with the cert expire? - // - now => max red - // - 30 days from now => 0 red - redness := util.MapRange( - util.TimeRange{now, now.AddDate(0, 0, 30)}, - util.ByteRange{max, 0}, - t) - return fmt.Sprintf("#%02X%02X%02X", max, max-redness, max-redness) -} - -type Cert struct { - Url string - Updated time.Time - X509 *x509.Certificate -} - -type Certs []Cert - -// Len is the number of elements in the collection. -func (l Certs) Len() int { - return len(l) -} - -// Less reports whether the element with -// index i should sort before the element with index j. -func (l Certs) Less(i, j int) bool { - return l[i].Updated.After(l[j].Updated) -} - -// Swap swaps the elements with indexes i and j. -func (l Certs) Swap(i, j int) { - tmp := l[i] - l[i] = l[j] - l[j] = tmp -} - -func main() { - data, err := ioutil.ReadAll(os.Stdin) - handleErr(err, "Error reading stdin: %v\n") - - var certs Certs - for len(data) > 0 { - var certPem *pem.Block - certPem, data = pem.Decode(data) - - var ok bool - var cert Cert - - cert.Url, ok = certPem.Headers["X-Crt-Sh-Url"] - handleBool(ok, "Did not get X-Crt-Sh-Url\n") - - str, ok := certPem.Headers["X-Crt-Sh-Updated"] - handleBool(ok, "Did not get X-Crt-Sh-Updated\n") - cert.Updated, err = time.Parse("2006-01-02T15:04:05Z", str) - handleErr(err, "Could not parse updated time") - - cert.X509, err = x509.ParseCertificate(certPem.Bytes) - handleErr(err, "Error parsing cert: %v\n") - - certs = append(certs, cert) - } - - sort.Sort(certs) - handleErr(tmpl.Execute(os.Stdout, map[string]interface{}{"certs": certs, "now": now}), "Could not execute template: %v\n") -} |