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main.go
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main.go
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// Copyright 2019 Anapaya Systems
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"flag"
"fmt"
"io"
"os"
"github.com/BurntSushi/toml"
"github.com/scionproto/scion/go/lib/common"
"github.com/scionproto/scion/go/lib/config"
"github.com/scionproto/scion/go/lib/env"
"github.com/scionproto/scion/go/lib/infra/modules/trust/trustdb"
"github.com/scionproto/scion/go/lib/truststorage"
)
var _ config.Config = (*Config)(nil)
type Config struct {
TrustDB truststorage.TrustDBConf
}
func (cfg *Config) InitDefaults() {
cfg.TrustDB.InitDefaults()
}
func (cfg *Config) Validate() error {
return cfg.TrustDB.Validate()
}
func (cfg *Config) Sample(dst io.Writer, path config.Path, _ config.CtxMap) {
config.WriteSample(dst, path, config.CtxMap{config.ID: "cs-1"}, &cfg.TrustDB)
}
func (cfg *Config) ConfigName() string {
return "scion-custpk-load_config"
}
var (
custDir = flag.String("customers", "", "The folder containing the customer keys")
cfg Config
trustDB trustdb.TrustDB
)
func main() {
os.Exit(realMain())
}
func realMain() int {
env.AddFlags()
flag.Parse()
if ret, ok := checkFlags(); !ok {
return ret
}
if err := loadConfig(); err != nil {
fmt.Fprintf(os.Stderr, "%s\n", err)
flag.Usage()
return 1
}
files, loadedCusts, err := LoadCustomers(*custDir, trustDB)
printSummary(files, loadedCusts)
if err != nil {
fmt.Fprintf(os.Stderr, "Error during loading: %s\n", err)
return 1
}
return 0
}
// checkFlags checks the flags.
// The first return value is the return code of the program. The second value
// indicates whether the program can continue with its execution or should exit.
func checkFlags() (int, bool) {
if ret, ok := env.CheckFlags(&cfg); !ok {
return ret, ok
}
if *custDir == "" {
fmt.Fprintln(os.Stderr, "Err: Missing customers argument")
flag.Usage()
return 1, false
}
return 0, true
}
func loadConfig() error {
if _, err := toml.DecodeFile(env.ConfigFile(), &cfg); err != nil {
return common.NewBasicError("Failed to load config", err)
}
cfg.InitDefaults()
err := cfg.Validate()
if err != nil {
return common.NewBasicError("Unable to validate config", err)
}
if trustDB, err = cfg.TrustDB.New(); err != nil {
return common.NewBasicError("Failed to init the database", err)
}
return nil
}
func printSummary(files []string, loadedCusts []*CustKeyMeta) {
fmt.Println("Successfully processed files:")
for _, f := range files {
fmt.Println(f)
}
fmt.Println("Successfully stored customers:")
for _, cust := range loadedCusts {
fmt.Printf("IA: %s, Version: %d\n", cust.IA, cust.Version)
}
}