main.go

Documentation: github.com/letsencrypt/boulder/cmd/reversed-hostname-checker

     1  // Read a list of reversed hostnames, separated by newlines. Print only those
     2  // that are rejected by the current policy.
     3  
     4  package notmain
     5  
     6  import (
     7  	"bufio"
     8  	"flag"
     9  	"fmt"
    10  	"io"
    11  	"log"
    12  	"os"
    13  
    14  	"github.com/letsencrypt/boulder/cmd"
    15  	"github.com/letsencrypt/boulder/identifier"
    16  	"github.com/letsencrypt/boulder/policy"
    17  	"github.com/letsencrypt/boulder/sa"
    18  )
    19  
    20  func init() {
    21  	cmd.RegisterCommand("reversed-hostname-checker", main, nil)
    22  }
    23  
    24  func main() {
    25  	inputFilename := flag.String("input", "", "File containing a list of reversed hostnames to check, newline separated. Defaults to stdin")
    26  	policyFile := flag.String("policy", "test/hostname-policy.yaml", "File containing a hostname policy in yaml.")
    27  	flag.Parse()
    28  
    29  	var input io.Reader
    30  	var err error
    31  	if *inputFilename == "" {
    32  		input = os.Stdin
    33  	} else {
    34  		input, err = os.Open(*inputFilename)
    35  		if err != nil {
    36  			log.Fatalf("opening %s: %s", *inputFilename, err)
    37  		}
    38  	}
    39  
    40  	scanner := bufio.NewScanner(input)
    41  	logger := cmd.NewLogger(cmd.SyslogConfig{StdoutLevel: 7})
    42  	logger.Info(cmd.VersionString())
    43  	pa, err := policy.New(nil, logger)
    44  	if err != nil {
    45  		log.Fatal(err)
    46  	}
    47  	err = pa.LoadHostnamePolicyFile(*policyFile)
    48  	if err != nil {
    49  		log.Fatalf("reading %s: %s", *policyFile, err)
    50  	}
    51  	var errors bool
    52  	for scanner.Scan() {
    53  		n := sa.ReverseName(scanner.Text())
    54  		err := pa.WillingToIssueWildcards([]identifier.ACMEIdentifier{identifier.DNSIdentifier(n)})
    55  		if err != nil {
    56  			errors = true
    57  			fmt.Printf("%s: %s\n", n, err)
    58  		}
    59  	}
    60  	if errors {
    61  		os.Exit(1)
    62  	}
    63  }
    64
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