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// Package main provides a utility named ct-sans.
//
// Install:
//
// go install git.cs.kau.se/rasmoste/ct-sans@latest
//
// Usage:
//
// $ ct-sans -h
package main
import (
"flag"
"fmt"
"log"
"os"
"time"
"git.cs.kau.se/rasmoste/ct-sans/internal/ctflag"
)
const usage = `ct-sans collects SANs in CT-logged certificates
Usage:
ct-sans snapshot [Options...]
Refresh log lists, signed tree heads, and timestamps
ct-sans collect [Options...]
Collect SANs with regards to the current snapshot
ct-sans assemble [Options...]
Assemble a dataset manifest and print a command that combines,
sorts, and removes duplicate SANs that were collected.
Help:
ct-sans [-h] [--help]
Options:
-d, --directory: The ct-sans working directory (Default: "data")
-w, --workers: Number of parallel download workers per log (Default: 2)
-k, --batch-disk: Certificate batch size before persisting (Default: 16384)
-q, --batch-req: Certificate batch size to use in request (Default: 512)
-a, --http-agent: HTTP agent to use in all request (Default: "git.cs.kau.se/rasmoste/ct-sans")
-m, --metrics: How often to emit metrics to stderr (Default: 15s)
`
type options struct {
Directory string
WorkersPerLog uint64
PersistSize uint64
BatchSize uint64
HTTPAgent string
MetricsInterval time.Duration
logDirectory string
metadataFile string
metadataSignatureFile string
metadataTimestampFile string
sthFile string
stateFile string
sansFile string
}
func main() {
log.SetOutput(os.Stdout)
log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
if ctflag.WantHelp(os.Args, 1) {
fmt.Fprintf(os.Stdout, usage)
os.Exit(1)
}
// Define command-line options
fs := ctflag.NewFlagSet()
opts := options{}
ctflag.String(&fs, &opts.Directory, "directory", "d", "data")
ctflag.Uint64(&fs, &opts.WorkersPerLog, "workers", "w", 2)
ctflag.Uint64(&fs, &opts.PersistSize, "batch-disk", "k", 16384)
ctflag.Uint64(&fs, &opts.BatchSize, "batch-req", "q", 512)
ctflag.String(&fs, &opts.HTTPAgent, "http-agent", "a", "git.cs.kau.se/rasmoste/ct-sans")
ctflag.Duration(&fs, &opts.MetricsInterval, "metrics", "m", 15*time.Second)
// Parse command-line options and hardcode additional values
if err := ctflag.Parse(fs, os.Args[2:]); err != nil {
if err == flag.ErrHelp {
fmt.Fprintf(os.Stdout, usage)
os.Exit(1)
}
fmt.Fprintf(os.Stdout, "error: %v\n\n", err)
os.Exit(1)
}
opts.logDirectory = opts.Directory + "/" + "logs"
opts.metadataFile = "metadata.json"
opts.metadataSignatureFile = "metadata.sig"
opts.metadataTimestampFile = "metadata.timestamp"
opts.sthFile = "sth.json"
opts.stateFile = "th.json"
opts.sansFile = "sans.lst"
// Hand-over to the respective subcommands
var err error
switch cmd := os.Args[1]; cmd {
case "snapshot":
err = snapshot(opts)
case "collect":
err = collect(opts)
case "assemble":
err = assemble(opts)
default:
fmt.Fprintf(os.Stdout, "ct-sans: unknown command %q\n\n", cmd)
os.Exit(1)
}
if err != nil {
fmt.Fprintf(os.Stdout, "ct-sans %s: error: %v\n", os.Args[1], err)
os.Exit(1)
}
}
|
