148 lines
4.2 KiB
Go
148 lines
4.2 KiB
Go
// Package conoha implements a DNS provider for solving the DNS-01 challenge using ConoHa DNS.
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package conoha
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import (
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"errors"
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"fmt"
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"net/http"
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"time"
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"github.com/go-acme/lego/challenge/dns01"
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"github.com/go-acme/lego/platform/config/env"
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"github.com/go-acme/lego/providers/dns/conoha/internal"
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)
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// Config is used to configure the creation of the DNSProvider
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type Config struct {
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Region string
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TenantID string
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Username string
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Password string
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TTL int
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PropagationTimeout time.Duration
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PollingInterval time.Duration
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HTTPClient *http.Client
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}
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// NewDefaultConfig returns a default configuration for the DNSProvider
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func NewDefaultConfig() *Config {
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return &Config{
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Region: env.GetOrDefaultString("CONOHA_REGION", "tyo1"),
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TTL: env.GetOrDefaultInt("CONOHA_TTL", 60),
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PropagationTimeout: env.GetOrDefaultSecond("CONOHA_PROPAGATION_TIMEOUT", dns01.DefaultPropagationTimeout),
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PollingInterval: env.GetOrDefaultSecond("CONOHA_POLLING_INTERVAL", dns01.DefaultPollingInterval),
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HTTPClient: &http.Client{
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Timeout: env.GetOrDefaultSecond("CONOHA_HTTP_TIMEOUT", 30*time.Second),
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},
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}
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}
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// DNSProvider is an implementation of the acme.ChallengeProvider interface
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type DNSProvider struct {
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config *Config
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client *internal.Client
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}
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// NewDNSProvider returns a DNSProvider instance configured for ConoHa DNS.
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// Credentials must be passed in the environment variables: CONOHA_TENANT_ID, CONOHA_API_USERNAME, CONOHA_API_PASSWORD
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func NewDNSProvider() (*DNSProvider, error) {
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values, err := env.Get("CONOHA_TENANT_ID", "CONOHA_API_USERNAME", "CONOHA_API_PASSWORD")
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if err != nil {
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return nil, fmt.Errorf("conoha: %v", err)
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}
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config := NewDefaultConfig()
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config.TenantID = values["CONOHA_TENANT_ID"]
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config.Username = values["CONOHA_API_USERNAME"]
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config.Password = values["CONOHA_API_PASSWORD"]
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return NewDNSProviderConfig(config)
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}
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// NewDNSProviderConfig return a DNSProvider instance configured for ConoHa DNS.
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func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
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if config == nil {
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return nil, errors.New("conoha: the configuration of the DNS provider is nil")
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}
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if config.TenantID == "" || config.Username == "" || config.Password == "" {
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return nil, errors.New("conoha: some credentials information are missing")
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}
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auth := internal.Auth{
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TenantID: config.TenantID,
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PasswordCredentials: internal.PasswordCredentials{
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Username: config.Username,
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Password: config.Password,
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},
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}
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client, err := internal.NewClient(config.Region, auth, config.HTTPClient)
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if err != nil {
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return nil, fmt.Errorf("conoha: failed to create client: %v", err)
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}
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return &DNSProvider{config: config, client: client}, nil
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}
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// Present creates a TXT record to fulfill the dns-01 challenge.
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func (d *DNSProvider) Present(domain, token, keyAuth string) error {
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fqdn, value := dns01.GetRecord(domain, keyAuth)
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authZone, err := dns01.FindZoneByFqdn(fqdn)
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if err != nil {
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return err
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}
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id, err := d.client.GetDomainID(authZone)
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if err != nil {
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return fmt.Errorf("conoha: failed to get domain ID: %v", err)
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}
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record := internal.Record{
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Name: fqdn,
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Type: "TXT",
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Data: value,
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TTL: d.config.TTL,
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}
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err = d.client.CreateRecord(id, record)
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if err != nil {
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return fmt.Errorf("conoha: failed to create record: %v", err)
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}
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return nil
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}
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// CleanUp clears ConoHa DNS TXT record
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func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
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fqdn, value := dns01.GetRecord(domain, keyAuth)
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authZone, err := dns01.FindZoneByFqdn(fqdn)
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if err != nil {
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return err
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}
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domID, err := d.client.GetDomainID(authZone)
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if err != nil {
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return fmt.Errorf("conoha: failed to get domain ID: %v", err)
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}
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recID, err := d.client.GetRecordID(domID, fqdn, "TXT", value)
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if err != nil {
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return fmt.Errorf("conoha: failed to get record ID: %v", err)
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}
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err = d.client.DeleteRecord(domID, recID)
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if err != nil {
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return fmt.Errorf("conoha: failed to delete record: %v", err)
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}
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return nil
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}
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// Timeout returns the timeout and interval to use when checking for DNS propagation.
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// Adjusting here to cope with spikes in propagation times.
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func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
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return d.config.PropagationTimeout, d.config.PollingInterval
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}
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