mirror of https://github.com/jlelse/GoBlog
Simple blogging system written in Go
https://goblog.app
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54 lines
1.3 KiB
54 lines
1.3 KiB
package main
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import (
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"encoding/base64"
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"golang.org/x/crypto/acme"
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"golang.org/x/crypto/acme/autocert"
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)
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func (a *goBlog) getAutocertManager() *autocert.Manager {
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if a.tailscaleEnabled() || !a.cfg.Server.PublicHTTPS {
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return nil
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}
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if a.autocertManager != nil {
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return a.autocertManager
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}
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// Not initialized yet
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a.autocertInit.Do(func() {
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// Create hosts whitelist
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hosts := []string{a.cfg.Server.publicHostname}
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if shn := a.cfg.Server.shortPublicHostname; shn != "" {
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hosts = append(hosts, shn)
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}
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if mhn := a.cfg.Server.mediaHostname; mhn != "" {
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hosts = append(hosts, mhn)
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}
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// Create autocert manager
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acmeDir := acme.LetsEncryptURL
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if a.cfg.Server.AcmeDir != "" {
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acmeDir = a.cfg.Server.AcmeDir
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}
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m := &autocert.Manager{
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Prompt: autocert.AcceptTOS,
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HostPolicy: autocert.HostWhitelist(hosts...),
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Cache: &httpsCache{db: a.db},
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Client: &acme.Client{DirectoryURL: acmeDir, HTTPClient: a.httpClient},
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}
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// Set external account binding
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if a.cfg.Server.AcmeEabKid != "" && a.cfg.Server.AcmeEabKey != "" {
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key, err := base64.RawURLEncoding.DecodeString(a.cfg.Server.AcmeEabKey)
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if err != nil {
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return
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}
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m.ExternalAccountBinding = &acme.ExternalAccountBinding{
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KID: a.cfg.Server.AcmeEabKid,
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Key: key,
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}
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}
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// Save
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a.autocertManager = m
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})
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// Return
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return a.autocertManager
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}
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