90 lines
3.1 KiB
Go
90 lines
3.1 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package ipfs
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import (
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"github.com/ethereum/go-ethereum/common"
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"github.com/ipfs/go-block-format"
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)
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// IPLDResolver is the interface to resolving IPLDs
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type IPLDResolver interface {
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ResolveIPLDs(ipfsBlocks IpldWrapper) (*ResponsePayload, error)
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}
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// EthIPLDResolver is the underlying struct to support the IPLDResolver interface
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type EthIPLDResolver struct{}
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// NewIPLDResolver returns a pointer to an EthIPLDResolver which satisfies the IPLDResolver interface
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func NewIPLDResolver() *EthIPLDResolver {
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return &EthIPLDResolver{}
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}
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// ResolveIPLDs is the exported method for resolving all of the ETH IPLDs packaged in an IpfsBlockWrapper
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func (eir *EthIPLDResolver) ResolveIPLDs(ipfsBlocks IpldWrapper) (*ResponsePayload, error) {
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response := new(ResponsePayload)
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eir.resolveHeaders(ipfsBlocks.Headers, response)
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eir.resolveTransactions(ipfsBlocks.Transactions, response)
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eir.resolveReceipts(ipfsBlocks.Receipts, response)
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eir.resolveState(ipfsBlocks.StateNodes, response)
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eir.resolveStorage(ipfsBlocks.StorageNodes, response)
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return response, nil
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}
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func (eir *EthIPLDResolver) resolveHeaders(blocks []blocks.Block, response *ResponsePayload) {
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for _, block := range blocks {
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raw := block.RawData()
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response.HeadersRlp = append(response.HeadersRlp, raw)
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}
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}
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func (eir *EthIPLDResolver) resolveTransactions(blocks []blocks.Block, response *ResponsePayload) {
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for _, block := range blocks {
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raw := block.RawData()
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response.TransactionsRlp = append(response.TransactionsRlp, raw)
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}
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}
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func (eir *EthIPLDResolver) resolveReceipts(blocks []blocks.Block, response *ResponsePayload) {
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for _, block := range blocks {
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raw := block.RawData()
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response.ReceiptsRlp = append(response.ReceiptsRlp, raw)
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}
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}
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func (eir *EthIPLDResolver) resolveState(blocks map[common.Hash]blocks.Block, response *ResponsePayload) {
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if response.StateNodesRlp == nil {
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response.StateNodesRlp = make(map[common.Hash][]byte)
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}
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for key, block := range blocks {
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raw := block.RawData()
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response.StateNodesRlp[key] = raw
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}
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}
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func (eir *EthIPLDResolver) resolveStorage(blocks map[common.Hash]map[common.Hash]blocks.Block, response *ResponsePayload) {
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if response.StateNodesRlp == nil {
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response.StorageNodesRlp = make(map[common.Hash]map[common.Hash][]byte)
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}
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for stateKey, storageBlocks := range blocks {
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for storageKey, storageVal := range storageBlocks {
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raw := storageVal.RawData()
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response.StorageNodesRlp[stateKey][storageKey] = raw
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}
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}
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}
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