// Copyright 2018 The go-ethereum Authors // This file is part of the go-ethereum library. // // The go-ethereum library is free software: you can redistribute it and/or modify // it under the terms of the GNU Lesser General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // The go-ethereum library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public License // along with the go-ethereum library. If not, see . package enode import ( "crypto/ecdsa" "net" "reflect" "strings" "testing" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/p2p/enr" ) var parseNodeTests = []struct { input string wantError string wantResult *Node }{ // Records { input: "enr:-IS4QGrdq0ugARp5T2BZ41TrZOqLc_oKvZoPuZP5--anqWE_J-Tucc1xgkOL7qXl0puJgT7qc2KSvcupc4NCb0nr4tdjgmlkgnY0gmlwhH8AAAGJc2VjcDI1NmsxoQM6UUF2Rm-oFe1IH_rQkRCi00T2ybeMHRSvw1HDpRvjPYN1ZHCCdl8", wantResult: func() *Node { testKey, _ := crypto.HexToECDSA("45a915e4d060149eb4365960e6a7a45f334393093061116b197e3240065ff2d8") var r enr.Record r.Set(enr.IP{127, 0, 0, 1}) r.Set(enr.UDP(30303)) r.SetSeq(99) SignV4(&r, testKey) n, _ := New(ValidSchemes, &r) return n }(), }, // Invalid Records { input: "enr:", wantError: "EOF", // could be nicer }, { input: "enr:x", wantError: "illegal base64 data at input byte 0", }, { input: "enr:-EmGZm9vYmFyY4JpZIJ2NIJpcIR_AAABiXNlY3AyNTZrMaEDOlFBdkZvqBXtSB_60JEQotNE9sm3jB0Ur8NRw6Ub4z2DdWRwgnZf", wantError: enr.ErrInvalidSig.Error(), }, // Complete node URLs with IP address and ports { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@hostname:3", wantError: `invalid IP address`, }, { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:foo", wantError: `invalid port`, }, { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:3?discport=foo", wantError: `invalid discport in query`, }, { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:52150", wantResult: NewV4( hexPubkey("1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"), net.IP{0x7f, 0x0, 0x0, 0x1}, 52150, 52150, ), }, { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@[::]:52150", wantResult: NewV4( hexPubkey("1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"), net.ParseIP("::"), 52150, 52150, ), }, { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@[2001:db8:3c4d:15::abcd:ef12]:52150", wantResult: NewV4( hexPubkey("1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"), net.ParseIP("2001:db8:3c4d:15::abcd:ef12"), 52150, 52150, ), }, { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439@127.0.0.1:52150?discport=22334", wantResult: NewV4( hexPubkey("1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"), net.IP{0x7f, 0x0, 0x0, 0x1}, 52150, 22334, ), }, // Incomplete node URLs with no address { input: "enode://1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439", wantResult: NewV4( hexPubkey("1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439"), nil, 0, 0, ), }, // Invalid URLs { input: "", wantError: errMissingPrefix.Error(), }, { input: "1dd9d65c4552b5eb43d5ad55a2ee3f56c6cbc1c64a5c8d659f51fcd51bace24351232b8d7821617d2b29b54b81cdefb9b3e9c37d7fd5f63270bcc9e1a6f6a439", wantError: errMissingPrefix.Error(), }, { input: "01010101", wantError: errMissingPrefix.Error(), }, { input: "enode://01010101@123.124.125.126:3", wantError: `invalid public key (wrong length, want 128 hex chars)`, }, { input: "enode://01010101", wantError: `invalid public key (wrong length, want 128 hex chars)`, }, { input: "http://foobar", wantError: errMissingPrefix.Error(), }, { input: "://foo", wantError: errMissingPrefix.Error(), }, } func hexPubkey(h string) *ecdsa.PublicKey { k, err := parsePubkey(h) if err != nil { panic(err) } return k } func TestParseNode(t *testing.T) { for _, test := range parseNodeTests { n, err := Parse(ValidSchemes, test.input) if test.wantError != "" { if err == nil { t.Errorf("test %q:\n got nil error, expected %#q", test.input, test.wantError) continue } else if !strings.Contains(err.Error(), test.wantError) { t.Errorf("test %q:\n got error %#q, expected %#q", test.input, err.Error(), test.wantError) continue } } else { if err != nil { t.Errorf("test %q:\n unexpected error: %v", test.input, err) continue } if !reflect.DeepEqual(n, test.wantResult) { t.Errorf("test %q:\n result mismatch:\ngot: %#v\nwant: %#v", test.input, n, test.wantResult) } } } } func TestNodeString(t *testing.T) { for i, test := range parseNodeTests { if test.wantError == "" && strings.HasPrefix(test.input, "enode://") { str := test.wantResult.String() if str != test.input { t.Errorf("test %d: Node.String() mismatch:\ngot: %s\nwant: %s", i, str, test.input) } } } }