forked from TrueCloudLab/lego
115 lines
3.4 KiB
Go
115 lines
3.4 KiB
Go
// Package cloudxns implements a DNS provider for solving the DNS-01 challenge
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// using CloudXNS DNS.
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package cloudxns
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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/xenolf/lego/acme"
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"github.com/xenolf/lego/platform/config/env"
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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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APIKey string
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SecretKey string
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PropagationTimeout time.Duration
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PollingInterval time.Duration
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TTL int
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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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client := acme.HTTPClient
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client.Timeout = time.Second * time.Duration(env.GetOrDefaultInt("CLOUDXNS_HTTP_TIMEOUT", 30))
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return &Config{
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PropagationTimeout: env.GetOrDefaultSecond("CLOUDXNS_PROPAGATION_TIMEOUT", acme.DefaultPropagationTimeout),
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PollingInterval: env.GetOrDefaultSecond("CLOUDXNS_POLLING_INTERVAL", acme.DefaultPollingInterval),
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TTL: env.GetOrDefaultInt("CLOUDXNS_TTL", 120),
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HTTPClient: &client,
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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 *Client
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}
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// NewDNSProvider returns a DNSProvider instance configured for CloudXNS.
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// Credentials must be passed in the environment variables:
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// CLOUDXNS_API_KEY and CLOUDXNS_SECRET_KEY.
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func NewDNSProvider() (*DNSProvider, error) {
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values, err := env.Get("CLOUDXNS_API_KEY", "CLOUDXNS_SECRET_KEY")
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if err != nil {
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return nil, fmt.Errorf("CloudXNS: %v", err)
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}
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return NewDNSProviderCredentials(values["CLOUDXNS_API_KEY"], values["CLOUDXNS_SECRET_KEY"])
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}
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// NewDNSProviderCredentials uses the supplied credentials to return a
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// DNSProvider instance configured for CloudXNS.
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func NewDNSProviderCredentials(apiKey, secretKey string) (*DNSProvider, error) {
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config := NewDefaultConfig()
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config.APIKey = apiKey
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config.SecretKey = secretKey
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return NewDNSProviderConfig(config)
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}
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// NewDNSProviderConfig return a DNSProvider instance configured for CloudXNS.
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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("CloudXNS: the configuration of the DNS provider is nil")
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}
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client, err := NewClient(config.APIKey, config.SecretKey)
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if err != nil {
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return nil, err
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}
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client.HTTPClient = config.HTTPClient
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return &DNSProvider{client: client, config: config}, 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, _ := acme.DNS01Record(domain, keyAuth)
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info, err := d.client.GetDomainInformation(fqdn)
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if err != nil {
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return err
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}
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return d.client.AddTxtRecord(info, fqdn, value, d.config.TTL)
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}
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// CleanUp removes the TXT record matching the specified parameters.
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func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
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fqdn, _, _ := acme.DNS01Record(domain, keyAuth)
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info, err := d.client.GetDomainInformation(fqdn)
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if err != nil {
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return err
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}
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record, err := d.client.FindTxtRecord(info.ID, fqdn)
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if err != nil {
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return err
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}
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return d.client.RemoveTxtRecord(record.RecordID, info.ID)
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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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