move interface_getter.go from ens_watcher to vDB pkging- used to construct a custom ABI based on results from calls to supportsInterface; also moved fetcher.go from examples to pkg

2019-01-15 15:49:18 -06:00
parent 59cdaa05e6
commit aa4e698240
10 changed files with 342 additions and 12 deletions
@@ -70,6 +70,7 @@ func (e Event) Signature() string {
 var DaiContractAddress = "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
 var TusdContractAddress = "0x8dd5fbCe2F6a956C3022bA3663759011Dd51e73E"
 var EnsContractAddress = "0x314159265dD8dbb310642f98f50C066173C1259b"
+var PublicResolverAddress = "0x1da022710dF5002339274AaDEe8D58218e9D6AB5"

 // Contract Owner
 var DaiContractOwner = "0x0000000000000000000000000000000000000000"
@@ -0,0 +1,127 @@
+// VulcanizeDB
+// Copyright © 2018 Vulcanize
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program 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 Affero General Public License for more details.
+
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package constants
+
+import (
+	"github.com/ethereum/go-ethereum/common/hexutil"
+)
+
+// Basic abi needed to check which interfaces are adhered to
+var SupportsInterfaceABI = `[{"constant":true,"inputs":[{"name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"}]`
+
+// Individual event interfaces for constructing ABI from
+var SupportsInterace = `{"constant":true,"inputs":[{"name":"interfaceID","type":"bytes4"}],"name":"supportsInterface","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"}`
+var AddrChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"a","type":"address"}],"name":"AddrChanged","type":"event"}`
+var ContentChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"hash","type":"bytes32"}],"name":"ContentChanged","type":"event"}`
+var NameChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"name","type":"string"}],"name":"NameChanged","type":"event"}`
+var AbiChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":true,"name":"contentType","type":"uint256"}],"name":"ABIChanged","type":"event"}`
+var PubkeyChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"x","type":"bytes32"},{"indexed":false,"name":"y","type":"bytes32"}],"name":"PubkeyChanged","type":"event"}`
+var TextChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"indexedKey","type":"string"},{"indexed":false,"name":"key","type":"string"}],"name":"TextChanged","type":"event"}`
+var MultihashChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"hash","type":"bytes"}],"name":"MultihashChanged","type":"event"}`
+var ContenthashChangeInterface = `{"anonymous":false,"inputs":[{"indexed":true,"name":"node","type":"bytes32"},{"indexed":false,"name":"hash","type":"bytes"}],"name":"ContenthashChanged","type":"event"}`
+
+var StartingBlock = int64(3648359)
+
+// Resolver interface signatures
+type Interface int
+
+const (
+	MetaSig Interface = iota
+	AddrChangeSig
+	ContentChangeSig
+	NameChangeSig
+	AbiChangeSig
+	PubkeyChangeSig
+	TextChangeSig
+	MultihashChangeSig
+	ContentHashChangeSig
+)
+
+func (e Interface) Hex() string {
+	strings := [...]string{
+		"0x01ffc9a7",
+		"0x3b3b57de",
+		"0xd8389dc5",
+		"0x691f3431",
+		"0x2203ab56",
+		"0xc8690233",
+		"0x59d1d43c",
+		"0xe89401a1",
+		"0xbc1c58d1",
+	}
+
+	if e < MetaSig || e > ContentHashChangeSig {
+		return "Unknown"
+	}
+
+	return strings[e]
+}
+
+func (e Interface) Bytes() [4]uint8 {
+	if e < MetaSig || e > ContentHashChangeSig {
+		return [4]byte{}
+	}
+
+	str := e.Hex()
+	by, _ := hexutil.Decode(str)
+	var byArray [4]uint8
+	for i := 0; i < 4; i++ {
+		byArray[i] = by[i]
+	}
+
+	return byArray
+}
+
+func (e Interface) EventSig() string {
+	strings := [...]string{
+		"",
+		"AddrChanged(bytes32,address)",
+		"ContentChanged(bytes32,bytes32)",
+		"NameChanged(bytes32,string)",
+		"ABIChanged(bytes32,uint256)",
+		"PubkeyChanged(bytes32,bytes32,bytes32)",
+		"TextChanged(bytes32,string,string)",
+		"MultihashChanged(bytes32,bytes)",
+		"ContenthashChanged(bytes32,bytes)",
+	}
+
+	if e < MetaSig || e > ContentHashChangeSig {
+		return "Unknown"
+	}
+
+	return strings[e]
+}
+
+func (e Interface) MethodSig() string {
+	strings := [...]string{
+		"supportsInterface(bytes4)",
+		"addr(bytes32)",
+		"content(bytes32)",
+		"name(bytes32)",
+		"ABI(bytes32,uint256)",
+		"pubkey(bytes32)",
+		"text(bytes32,string)",
+		"multihash(bytes32)",
+		"setContenthash(bytes32,bytes)",
+	}
+
+	if e < MetaSig || e > ContentHashChangeSig {
+		return "Unknown"
+	}
+
+	return strings[e]
+}