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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| package main | ||
|
|
||
| import( | ||
| "fmt" | ||
| "net" | ||
| "time" | ||
| "crypto" | ||
| "crypto/elliptic" | ||
| "crypto/rand" | ||
| "crypto/ecdsa" | ||
| "errors" | ||
| "strconv" | ||
| "encoding/json" | ||
|
|
||
| "github.com/xenolf/lego/acme" | ||
| consul "github.com/hashicorp/consul/api" | ||
| ) | ||
|
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||
| type( | ||
| DomainRecord struct { | ||
| Domains []string `consul:"domains"` | ||
| Email string `consul:"email"` | ||
| Timestamp time.Time `consul:"timestamp"` | ||
| PrivateKey string `consul:"private_key"` | ||
| Fullchain string `consul:"fullchain"` | ||
| key *ecdsa.PrivateKey | ||
| Reg *acme.RegistrationResource | ||
| } | ||
| ) | ||
|
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| func (domainRecord *DomainRecord) GetEmail() string { return domainRecord.Email } | ||
| func (domainRecord *DomainRecord) GetRegistration() *acme.RegistrationResource { return domainRecord.Reg } | ||
| func (domainRecord *DomainRecord) GetPrivateKey() crypto.PrivateKey { return domainRecord.key } | ||
|
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| func (domainRecord *DomainRecord) write(client *consul.Client, consulService string, domainRecordName string) error { | ||
| kv := client.KV() | ||
|
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| timestamp := domainRecord.Timestamp.Unix() | ||
| timestampStr := strconv.Itoa(int(timestamp)) | ||
|
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| p := &consul.KVPair { | ||
| Key: consulService + "/domains/" + domainRecordName + "/timestamp", | ||
| Value: []byte(timestampStr), | ||
| } | ||
| _, err := kv.Put(p, nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| p = &consul.KVPair { | ||
| Key: consulService + "/domains/" + domainRecordName + "/fullchain", | ||
| Value: []byte(domainRecord.Fullchain), | ||
| } | ||
| _, err = kv.Put(p, nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| p = &consul.KVPair { | ||
| Key: consulService + "/domains/" + domainRecordName + "/private_key", | ||
| Value: []byte(domainRecord.PrivateKey), | ||
| } | ||
| _, err = kv.Put(p, nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
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| func (domainRecord *DomainRecord) renew(bind string) error { | ||
| const letsEncryptURL = "https://acme-v01.api.letsencrypt.org/directory" | ||
|
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| key, err := ecdsa.GenerateKey(elliptic.P384(), rand.Reader) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| domainRecord.key = key | ||
|
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| client, err := acme.NewClient(letsEncryptURL, domainRecord, acme.EC256) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| reg, err := client.Register() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| domainRecord.Reg = reg | ||
|
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| err = client.AgreeToTOS() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| host, port, err := net.SplitHostPort(bind) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| client.ExcludeChallenges([]acme.Challenge{acme.TLSSNI01}) | ||
| client.ExcludeChallenges([]acme.Challenge{acme.HTTP01}) | ||
|
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| httpProvider := acme.NewHTTPProviderServer(host, port) | ||
|
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| err = client.SetChallengeProvider(acme.HTTP01, httpProvider) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| acmeCert, errmap := client.ObtainCertificate(domainRecord.Domains, true, nil) | ||
| if len(errmap) > 0 { | ||
| err = fmt.Errorf("%v", errmap) | ||
| return err | ||
| } | ||
|
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| domainRecord.Fullchain = string(acmeCert.Certificate) | ||
| domainRecord.PrivateKey = string(acmeCert.PrivateKey) | ||
|
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| domainRecord.Timestamp = time.Now() | ||
|
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| return nil | ||
| } | ||
|
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| func kvFetch(kv *consul.KV, prefix string, domainRecordName string, key string) ([]byte, error) { | ||
| kvPair, _, err := kv.Get(prefix + "/domains/" + domainRecordName + "/" + key, nil) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| if kvPair == nil { | ||
| return nil, errors.New("Can't fetch '" + key + "' key from '" + domainRecordName + "' domain") | ||
| } | ||
|
|
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| return kvPair.Value, nil | ||
| } | ||
|
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| func (domainRecord *DomainRecord) get(kv *consul.KV, prefix string, domainRecordName string) error { | ||
| v, err := kvFetch(kv, prefix, domainRecordName, "domain_list") | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| err = json.Unmarshal(v, &domainRecord.Domains) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| v, err = kvFetch(kv, prefix, domainRecordName, "email") | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| domainRecord.Email = string(v) | ||
|
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| v, err = kvFetch(kv, prefix, domainRecordName, "timestamp") | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| i, err := strconv.ParseInt(string(v), 10, 64) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| domainRecord.Timestamp = time.Unix(i, 0) | ||
|
|
||
| return nil | ||
| } |
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