forked from TrueCloudLab/lego
100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
package exec
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import (
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"errors"
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"fmt"
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"os"
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"os/exec"
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"strconv"
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"github.com/xenolf/lego/acme"
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"github.com/xenolf/lego/log"
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"github.com/xenolf/lego/platform/config/env"
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)
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// Config Provider configuration.
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type Config struct {
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Program string
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Mode string
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}
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// DNSProvider adds and removes the record for the DNS challenge by calling a
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// program with command-line parameters.
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type DNSProvider struct {
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config *Config
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}
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// NewDNSProvider returns a new DNS provider which runs the program in the
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// environment variable EXEC_PATH for adding and removing the DNS record.
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func NewDNSProvider() (*DNSProvider, error) {
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values, err := env.Get("EXEC_PATH")
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if err != nil {
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return nil, fmt.Errorf("exec: %v", err)
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}
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return NewDNSProviderConfig(&Config{
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Program: values["EXEC_PATH"],
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Mode: os.Getenv("EXEC_MODE"),
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})
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}
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// NewDNSProviderConfig returns a new DNS provider which runs the given configuration
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// for adding and removing the DNS record.
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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("the configuration is nil")
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}
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return &DNSProvider{config: config}, nil
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}
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// NewDNSProviderProgram returns a new DNS provider which runs the given program
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// for adding and removing the DNS record.
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// Deprecated: use NewDNSProviderConfig instead
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func NewDNSProviderProgram(program string) (*DNSProvider, error) {
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if len(program) == 0 {
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return nil, errors.New("the program is undefined")
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}
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return NewDNSProviderConfig(&Config{Program: program})
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}
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// Present creates a TXT record to fulfil the dns-01 challenge.
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func (d *DNSProvider) Present(domain, token, keyAuth string) error {
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var args []string
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if d.config.Mode == "RAW" {
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args = []string{"present", "--", domain, token, keyAuth}
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} else {
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fqdn, value, ttl := acme.DNS01Record(domain, keyAuth)
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args = []string{"present", fqdn, value, strconv.Itoa(ttl)}
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}
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cmd := exec.Command(d.config.Program, args...)
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output, err := cmd.CombinedOutput()
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if len(output) > 0 {
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log.Println(string(output))
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}
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return err
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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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var args []string
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if d.config.Mode == "RAW" {
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args = []string{"cleanup", "--", domain, token, keyAuth}
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} else {
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fqdn, value, ttl := acme.DNS01Record(domain, keyAuth)
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args = []string{"cleanup", fqdn, value, strconv.Itoa(ttl)}
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}
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cmd := exec.Command(d.config.Program, args...)
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output, err := cmd.CombinedOutput()
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if len(output) > 0 {
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log.Println(string(output))
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}
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return err
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}
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