|
| 1 | +/* |
| 2 | +Copyright IBM Corp. 2017 All Rights Reserved. |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package common |
| 18 | + |
| 19 | +import ( |
| 20 | + "bufio" |
| 21 | + "crypto/x509" |
| 22 | + "encoding/pem" |
| 23 | + "fmt" |
| 24 | + "os" |
| 25 | + "strconv" |
| 26 | + "strings" |
| 27 | + |
| 28 | + "github.com/hyperledger/fabric/protos/peer" |
| 29 | +) |
| 30 | + |
| 31 | +type AnchorPeerParser struct { |
| 32 | + anchorPeerParam string |
| 33 | + defaultAnchorPeers []*peer.AnchorPeer |
| 34 | +} |
| 35 | + |
| 36 | +func (app *AnchorPeerParser) Parse() ([]*peer.AnchorPeer, error) { |
| 37 | + if app.defaultAnchorPeers != nil { |
| 38 | + return app.defaultAnchorPeers, nil |
| 39 | + } |
| 40 | + return loadAnchorPeers(app.anchorPeerParam) |
| 41 | +} |
| 42 | + |
| 43 | +func GetDefaultAnchorPeerParser() *AnchorPeerParser { |
| 44 | + anchorPeerFile := "/tmp/anchorPeer.txt" |
| 45 | + f, err := os.Create(anchorPeerFile) |
| 46 | + if err != nil { |
| 47 | + panic(err) |
| 48 | + } |
| 49 | + defer f.Close() |
| 50 | + defer os.Remove(anchorPeerFile) |
| 51 | + f.Write([]byte(defaultAnchorPeerFile)) |
| 52 | + f.Sync() |
| 53 | + aps, err := loadAnchorPeers(anchorPeerFile) |
| 54 | + if err != nil { |
| 55 | + panic(err) |
| 56 | + } |
| 57 | + return &AnchorPeerParser{defaultAnchorPeers: aps} |
| 58 | +} |
| 59 | + |
| 60 | +func loadAnchorPeers(anchorPeerParam string) ([]*peer.AnchorPeer, error) { |
| 61 | + anchorPeerFileList := strings.Split(anchorPeerParam, ",") |
| 62 | + for _, f := range anchorPeerFileList { |
| 63 | + if _, err := os.Stat(f); os.IsNotExist(err) { |
| 64 | + return nil, fmt.Errorf("File %s doesn't exist", f) |
| 65 | + } |
| 66 | + } |
| 67 | + |
| 68 | + var anchorPeers []*peer.AnchorPeer |
| 69 | + |
| 70 | + for _, f := range anchorPeerFileList { |
| 71 | + if ap, err := anchorPeerFromFile(f); err != nil { |
| 72 | + return nil, err |
| 73 | + } else { |
| 74 | + anchorPeers = append(anchorPeers, ap) |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + return anchorPeers, nil |
| 79 | +} |
| 80 | + |
| 81 | +func anchorPeerFromFile(filename string) (*peer.AnchorPeer, error) { |
| 82 | + f, err := os.Open(filename) |
| 83 | + if err != nil { |
| 84 | + return nil, err |
| 85 | + } |
| 86 | + defer f.Close() |
| 87 | + sc := bufio.NewScanner(f) |
| 88 | + invalidFormatErr := fmt.Errorf("%s has invalid format", filename) |
| 89 | + if !sc.Scan() { |
| 90 | + return nil, invalidFormatErr |
| 91 | + } |
| 92 | + hostname := sc.Text() |
| 93 | + if !sc.Scan() || len(hostname) == 0 { |
| 94 | + return nil, invalidFormatErr |
| 95 | + } |
| 96 | + port, err := strconv.ParseInt(sc.Text(), 10, 64) |
| 97 | + if err != nil { |
| 98 | + return nil, fmt.Errorf("Second line must be a number: %d", port) |
| 99 | + } |
| 100 | + |
| 101 | + var rawPEM []byte |
| 102 | + for sc.Scan() { |
| 103 | + line := sc.Text() |
| 104 | + line = line + "\n" |
| 105 | + rawPEM = append(rawPEM, []byte(line)...) |
| 106 | + } |
| 107 | + block, _ := pem.Decode(rawPEM) |
| 108 | + if block == nil { |
| 109 | + return nil, fmt.Errorf("Anchor peer certificate is not a valid PEM certificate") |
| 110 | + } |
| 111 | + _, err = x509.ParseCertificate(block.Bytes) |
| 112 | + if err != nil { |
| 113 | + return nil, fmt.Errorf("Anchor peer certificate is not a valid PEM certificate: %v", err) |
| 114 | + } |
| 115 | + ap := &peer.AnchorPeer{ |
| 116 | + Host: hostname, |
| 117 | + Port: int32(port), |
| 118 | + Cert: block.Bytes, |
| 119 | + } |
| 120 | + return ap, nil |
| 121 | +} |
| 122 | + |
| 123 | +const defaultAnchorPeerFile = `anchorpeer |
| 124 | +7051 |
| 125 | +-----BEGIN CERTIFICATE----- |
| 126 | +MIIDZzCCAk+gAwIBAgIJAKSntkwsYDPhMA0GCSqGSIb3DQEBCwUAMEoxCzAJBgNV |
| 127 | +BAYTAklMMQ8wDQYDVQQIDAZJc3JhZWwxDjAMBgNVBAcMBUhhaWZhMQwwCgYDVQQK |
| 128 | +DANJQk0xDDAKBgNVBAsMA0lCTTAeFw0xNzAxMjcwMzUzMjdaFw0xODAxMjcwMzUz |
| 129 | +MjdaMEoxCzAJBgNVBAYTAklMMQ8wDQYDVQQIDAZJc3JhZWwxDjAMBgNVBAcMBUhh |
| 130 | +aWZhMQwwCgYDVQQKDANJQk0xDDAKBgNVBAsMA0lCTTCCASIwDQYJKoZIhvcNAQEB |
| 131 | +BQADggEPADCCAQoCggEBAL0KUiuuZFfs+BN7+FnDKoeiVGCkayQVrPrdeO8Mwu/n |
| 132 | +928T9lhmBI6wFnmkdeEjYTi1M5dks8hEal2AP8ykREc+LTmMH5JAJ8kktnoNQteO |
| 133 | +rdFqnBpzA0IdiDnaLLLU3QD22VT47TPxWnfqZ3Z+fEJkmxc+tNmJJ5/0eCxXC4v4 |
| 134 | +875wQZP8CEeI1EpkljL6AILLNCUN4qpug2R2CCBRvGaqA81TM8NKxvWgN90iSAiv |
| 135 | +vrQIc3/aelIpaJN457JEqLWgAcWw982rFUn5+D3u63pUq99lWH16VU4vRdUFzqi1 |
| 136 | +E3mBbGNTcNBzrBYswj5KhMFHLBpzIwQQX+Tvjh70cwkCAwEAAaNQME4wHQYDVR0O |
| 137 | +BBYEFNHpTtXPDggAIavkdxLh+ttFH+HCMB8GA1UdIwQYMBaAFNHpTtXPDggAIavk |
| 138 | +dxLh+ttFH+HCMAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQELBQADggEBADuYrb0h |
| 139 | +eXepdpkUSZ6t5mk6R4vyaGDQAHCUltL5Q2qhL8f5sWxMBqke/JhbB02+pQCsvj8P |
| 140 | +SIVSXuCXgFbzP0O3gNWqGhGn9atgN/j81hGyXtpAl5U5hyqcaFATX++Rdv58TKty |
| 141 | +WnjzYUtnrG2W6c5uK/XPmoUHoNHxkgj1HrlmuahdrxzFXkdcND7UIfW8U2K0Cz4V |
| 142 | +gJyAC5yIOs+kakE2gwjJI8SqREgegfO1JIbBfnUCkDJj1TLu2eUkBgnVLeJrcbXq |
| 143 | +AbiMV4MFfj5KFA51Tp8QltKbsPPm1Vx3+CRVWNnMgqVWygIQF+8h4H/CcETU4XCV |
| 144 | +4LqJvYfKwy27YUA= |
| 145 | +-----END CERTIFICATE-----` |
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