traefik/vendor/github.com/xenolf/lego/providers/dns/hostingde/hostingde.go

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// Package hostingde implements a DNS provider for solving the DNS-01 challenge using hosting.de.
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package hostingde
import (
"errors"
"fmt"
"net/http"
"sync"
"time"
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"github.com/xenolf/lego/challenge/dns01"
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"github.com/xenolf/lego/platform/config/env"
)
// Config is used to configure the creation of the DNSProvider
type Config struct {
APIKey string
ZoneName string
PropagationTimeout time.Duration
PollingInterval time.Duration
TTL int
HTTPClient *http.Client
}
// NewDefaultConfig returns a default configuration for the DNSProvider
func NewDefaultConfig() *Config {
return &Config{
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TTL: env.GetOrDefaultInt("HOSTINGDE_TTL", dns01.DefaultTTL),
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PropagationTimeout: env.GetOrDefaultSecond("HOSTINGDE_PROPAGATION_TIMEOUT", 2*time.Minute),
PollingInterval: env.GetOrDefaultSecond("HOSTINGDE_POLLING_INTERVAL", 2*time.Second),
HTTPClient: &http.Client{
Timeout: env.GetOrDefaultSecond("HOSTINGDE_HTTP_TIMEOUT", 30*time.Second),
},
}
}
// DNSProvider is an implementation of the acme.ChallengeProvider interface
type DNSProvider struct {
config *Config
recordIDs map[string]string
recordIDsMu sync.Mutex
}
// NewDNSProvider returns a DNSProvider instance configured for hosting.de.
// Credentials must be passed in the environment variables:
// HOSTINGDE_ZONE_NAME and HOSTINGDE_API_KEY
func NewDNSProvider() (*DNSProvider, error) {
values, err := env.Get("HOSTINGDE_API_KEY", "HOSTINGDE_ZONE_NAME")
if err != nil {
return nil, fmt.Errorf("hostingde: %v", err)
}
config := NewDefaultConfig()
config.APIKey = values["HOSTINGDE_API_KEY"]
config.ZoneName = values["HOSTINGDE_ZONE_NAME"]
return NewDNSProviderConfig(config)
}
// NewDNSProviderConfig return a DNSProvider instance configured for hosting.de.
func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
if config == nil {
return nil, errors.New("hostingde: the configuration of the DNS provider is nil")
}
if config.APIKey == "" {
return nil, errors.New("hostingde: API key missing")
}
if config.ZoneName == "" {
return nil, errors.New("hostingde: Zone Name missing")
}
return &DNSProvider{
config: config,
recordIDs: make(map[string]string),
}, nil
}
// Timeout returns the timeout and interval to use when checking for DNS propagation.
// Adjusting here to cope with spikes in propagation times.
func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
return d.config.PropagationTimeout, d.config.PollingInterval
}
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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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rec := []RecordsAddRequest{{
Type: "TXT",
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Name: dns01.UnFqdn(fqdn),
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Content: value,
TTL: d.config.TTL,
}}
req := ZoneUpdateRequest{
AuthToken: d.config.APIKey,
ZoneConfigSelector: ZoneConfigSelector{
Name: d.config.ZoneName,
},
RecordsToAdd: rec,
}
resp, err := d.updateZone(req)
if err != nil {
return fmt.Errorf("hostingde: %v", err)
}
for _, record := range resp.Response.Records {
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if record.Name == dns01.UnFqdn(fqdn) && record.Content == fmt.Sprintf(`"%s"`, value) {
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d.recordIDsMu.Lock()
d.recordIDs[fqdn] = record.ID
d.recordIDsMu.Unlock()
}
}
if d.recordIDs[fqdn] == "" {
return fmt.Errorf("hostingde: error getting ID of just created record, for domain %s", domain)
}
return nil
}
// CleanUp removes the TXT record matching the specified parameters
func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
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fqdn, value := dns01.GetRecord(domain, keyAuth)
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// get the record's unique ID from when we created it
d.recordIDsMu.Lock()
recordID, ok := d.recordIDs[fqdn]
d.recordIDsMu.Unlock()
if !ok {
return fmt.Errorf("hostingde: unknown record ID for %q", fqdn)
}
rec := []RecordsDeleteRequest{{
Type: "TXT",
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Name: dns01.UnFqdn(fqdn),
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Content: value,
ID: recordID,
}}
req := ZoneUpdateRequest{
AuthToken: d.config.APIKey,
ZoneConfigSelector: ZoneConfigSelector{
Name: d.config.ZoneName,
},
RecordsToDelete: rec,
}
// Delete record ID from map
d.recordIDsMu.Lock()
delete(d.recordIDs, fqdn)
d.recordIDsMu.Unlock()
_, err := d.updateZone(req)
if err != nil {
return fmt.Errorf("hostingde: %v", err)
}
return nil
}