Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
Mirrored from https://github.com/Slazee/caddy.git
Synced Nov 11, 01:00 UTC
| 1 | // Copyright 2015 Matthew Holt and The Caddy Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package caddytls |
| 16 | |
| 17 | import ( |
| 18 | "crypto/x509" |
| 19 | "fmt" |
| 20 | "os" |
| 21 | "path/filepath" |
| 22 | "strings" |
| 23 | |
| 24 | "github.com/caddyserver/caddy/v2" |
| 25 | "github.com/caddyserver/caddy/v2/caddyconfig/caddyfile" |
| 26 | ) |
| 27 | |
| 28 | func init() { |
| 29 | caddy.RegisterModule(LeafFolderLoader{}) |
| 30 | } |
| 31 | |
| 32 | // LeafFolderLoader loads certificates from disk |
| 33 | // by recursively walking the specified directories, looking for PEM |
| 34 | // files which contain a certificate. |
| 35 | type LeafFolderLoader struct { |
| 36 | Folders []string `json:"folders,omitempty"` |
| 37 | } |
| 38 | |
| 39 | // CaddyModule returns the Caddy module information. |
| 40 | func (LeafFolderLoader) CaddyModule() caddy.ModuleInfo { |
| 41 | return caddy.ModuleInfo{ |
| 42 | ID: "tls.leaf_cert_loader.folder", |
| 43 | New: func() caddy.Module { return new(LeafFolderLoader) }, |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | // Provision implements caddy.Provisioner. |
| 48 | func (fl *LeafFolderLoader) Provision(ctx caddy.Context) error { |
| 49 | repl, ok := ctx.Value(caddy.ReplacerCtxKey).(*caddy.Replacer) |
| 50 | if !ok { |
| 51 | repl = caddy.NewReplacer() |
| 52 | } |
| 53 | for k, path := range fl.Folders { |
| 54 | fl.Folders[k] = repl.ReplaceKnown(path, "") |
| 55 | } |
| 56 | return nil |
| 57 | } |
| 58 | |
| 59 | // UnmarshalCaddyfile implements caddyfile.Unmarshaler. |
| 60 | func (fl *LeafFolderLoader) UnmarshalCaddyfile(d *caddyfile.Dispenser) error { |
| 61 | d.NextArg() |
| 62 | fl.Folders = append(fl.Folders, d.RemainingArgs()...) |
| 63 | return nil |
| 64 | } |
| 65 | |
| 66 | // LoadLeafCertificates loads all the leaf certificates in the directories |
| 67 | // listed in fl from all files ending with .pem. |
| 68 | func (fl LeafFolderLoader) LoadLeafCertificates() ([]*x509.Certificate, error) { |
| 69 | var certs []*x509.Certificate |
| 70 | for _, dir := range fl.Folders { |
| 71 | err := filepath.Walk(dir, func(fpath string, info os.FileInfo, err error) error { |
| 72 | if err != nil { |
| 73 | return fmt.Errorf("unable to traverse into path: %s", fpath) |
| 74 | } |
| 75 | if info.IsDir() { |
| 76 | return nil |
| 77 | } |
| 78 | if !strings.HasSuffix(strings.ToLower(info.Name()), ".pem") { |
| 79 | return nil |
| 80 | } |
| 81 | |
| 82 | certData, err := convertPEMFilesToDERBytes(fpath) |
| 83 | if err != nil { |
| 84 | return err |
| 85 | } |
| 86 | cert, err := x509.ParseCertificate(certData) |
| 87 | if err != nil { |
| 88 | return fmt.Errorf("%s: %w", fpath, err) |
| 89 | } |
| 90 | |
| 91 | certs = append(certs, cert) |
| 92 | |
| 93 | return nil |
| 94 | }) |
| 95 | if err != nil { |
| 96 | return nil, err |
| 97 | } |
| 98 | } |
| 99 | return certs, nil |
| 100 | } |
| 101 | |
| 102 | var ( |
| 103 | _ LeafCertificateLoader = (*LeafFolderLoader)(nil) |
| 104 | _ caddy.Provisioner = (*LeafFolderLoader)(nil) |
| 105 | _ caddyfile.Unmarshaler = (*LeafFolderLoader)(nil) |
| 106 | ) |