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path_erc721.go
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// Copyright (C) Immutability, LLC - All Rights Reserved
// Unauthorized copying of this file, via any medium is strictly prohibited
// Proprietary and confidential
// Written by Jeff Ploughman <jeff@immutability.io>, August 2019
package main
import (
"bytes"
"context"
"fmt"
"github.com/core-coin/go-core/accounts/abi/bind"
"github.com/core-coin/go-core/common"
"github.com/core-coin/go-core/common/hexutil"
"github.com/core-coin/go-core/xcbclient"
"github.com/hashicorp/vault/sdk/framework"
"github.com/hashicorp/vault/sdk/logical"
"github.com/cryptohub-digital/vault-core/contracts/erc721"
"github.com/cryptohub-digital/vault-core/util"
)
const erc721Contract string = "erc-721"
// interface ERC721
// {
// /**
// * @dev Transfers the ownership of an NFT from one address to another address.
// * @notice Throws unless `msg.sender` is the current owner, an authorized operator, or the
// * approved address for this NFT. Throws if `_from` is not the current owner. Throws if `_to` is
// * the zero address. Throws if `_tokenId` is not a valid NFT. When transfer is complete, this
// * function checks if `_to` is a smart contract (code size > 0). If so, it calls
// * `onERC721Received` on `_to` and throws if the return value is not
// * `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))`.
// * @param _from The current owner of the NFT.
// * @param _to The new owner.
// * @param _tokenId The NFT to transfer.
// * @param _data Additional data with no specified format, sent in call to `_to`.
// */
// function safeTransferFrom(
// address _from,
// address _to,
// uint256 _tokenId,
// bytes calldata _data
// )
// /**
// * @dev Set or reaffirm the approved address for an NFT.
// * @notice The zero address indicates there is no approved address. Throws unless `msg.sender` is
// * the current NFT owner, or an authorized operator of the current owner.
// * @param _approved The new approved NFT controller.
// * @param _tokenId The NFT to approve.
// */
// function approve(
// address _approved,
// uint256 _tokenId
// )
// external;
// /**
// * @dev Enables or disables approval for a third party ("operator") to manage all of
// * `msg.sender`'s assets. It also emits the ApprovalForAll event.
// * @notice The contract MUST allow multiple operators per owner.
// * @param _operator Address to add to the set of authorized operators.
// * @param _approved True if the operators is approved, false to revoke approval.
// */
// function setApprovalForAll(
// address _operator,
// bool _approved
// )
// external;
// /**
// * @dev Returns the number of NFTs owned by `_owner`. NFTs assigned to the zero address are
// * considered invalid, and this function throws for queries about the zero address.
// * @param _owner Address for whom to query the balance.
// * @return Balance of _owner.
// */
// function balanceOf(
// address _owner
// )
// external
// view
// returns (uint256);
// /**
// * @dev Returns the address of the owner of the NFT. NFTs assigned to zero address are considered
// * invalid, and queries about them do throw.
// * @param _tokenId The identifier for an NFT.
// * @return Address of _tokenId owner.
// */
// function ownerOf(
// uint256 _tokenId
// )
// external
// view
// returns (address);
// /**
// * @dev Get the approved address for a single NFT.
// * @notice Throws if `_tokenId` is not a valid NFT.
// * @param _tokenId The NFT to find the approved address for.
// * @return Address that _tokenId is approved for.
// */
// function getApproved(
// uint256 _tokenId
// )
// external
// view
// returns (address);
// /**
// * @dev Returns true if `_operator` is an approved operator for `_owner`, false otherwise.
// * @param _owner The address that owns the NFTs.
// * @param _operator The address that acts on behalf of the owner.
// * @return True if approved for all, false otherwise.
// */
// function isApprovedForAll(
// address _owner,
// address _operator
// )
// external
// view
// returns (bool);
// }
// ERC721Paths are the path handlers for Non-Fungible Tokens
func ERC721Paths(b *PluginBackend) []*framework.Path {
return []*framework.Path{
{
Pattern: ContractPath(erc721Contract, "safeTransferFrom"),
HelpSynopsis: "Transfers the ownership of an NFT from one address to another address.",
HelpDescription: `
Transfers the ownership of an NFT from one address to another address.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"to": {
Type: framework.TypeString,
Description: "The address to transfer the NFT to.",
},
"token_id": {
Type: framework.TypeString,
Description: "The NFT that got transfered.",
},
"data": {
Type: framework.TypeString,
Description: "Additional data with no specified format, sent in call to \"to\".",
},
"encoding": {
Type: framework.TypeString,
Default: "utf8",
Description: "The encoding of the data.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721SafeTransferFrom,
logical.UpdateOperation: b.pathERC721SafeTransferFrom,
},
},
{
Pattern: ContractPath(erc721Contract, "approve"),
HelpSynopsis: "Set or reaffirm the approved address for an NFT",
HelpDescription: `
Set or reaffirm the approved address for an NFT.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"approved": {
Type: framework.TypeString,
Description: "The address to approve as operator of the NFT. Defaults to RLP empty byte sequence..",
Default: util.ZeroAddress,
},
"token_id": {
Type: framework.TypeString,
Description: "The NFT to approve.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721Approve,
logical.UpdateOperation: b.pathERC721Approve,
},
},
{
Pattern: ContractPath(erc721Contract, "setApprovalForAll"),
HelpSynopsis: "Enables or disables approval for a third party",
HelpDescription: `
Enables or disables approval for a third party ("operator") to manage all of
msg.senders assets.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"operator": {
Type: framework.TypeString,
Description: "Address to add to the set of authorized operators.",
},
"approved": {
Type: framework.TypeBool,
Description: "True if the operators is approved, false to revoke approval.",
Default: false,
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721SetApprovalForAll,
logical.UpdateOperation: b.pathERC721SetApprovalForAll,
},
},
{
Pattern: ContractPath(erc721Contract, "balanceOf"),
HelpSynopsis: "Returns the number of NFTs owned",
HelpDescription: `
Returns the number of NFTs owned. NFTs assigned to the zero address are
considered invalid, and this function throws for queries about the zero address.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"owner": {
Type: framework.TypeString,
Description: "Address to add to the set of authorized operators.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721BalanceOf,
logical.UpdateOperation: b.pathERC721BalanceOf,
},
},
{
Pattern: ContractPath(erc721Contract, "ownerOf"),
HelpSynopsis: "Returns the address of the owner of the NFT.",
HelpDescription: `
Returns the address of the owner of the NFT. NFTs assigned to zero address are considered
invalid, and queries about them do throw.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"token_id": {
Type: framework.TypeString,
Description: "The identifier for an NFT.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721OwnerOf,
logical.UpdateOperation: b.pathERC721OwnerOf,
},
},
{
Pattern: ContractPath(erc721Contract, "getApproved"),
HelpSynopsis: "Get the approved address for a single NFT.",
HelpDescription: `
Get the approved address for a single NFT.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"token_id": {
Type: framework.TypeString,
Description: "The identifier for an NFT.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721GetApproved,
logical.UpdateOperation: b.pathERC721GetApproved,
},
},
{
Pattern: ContractPath(erc721Contract, "isApprovedForAll"),
HelpSynopsis: "Returns true if operator is an approved operator for owner, false otherwise.",
HelpDescription: `
Returns true if operator is an approved operator for owner, false otherwise.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"owner": {
Type: framework.TypeString,
Description: "The address that owns the NFTs",
},
"operator": {
Type: framework.TypeString,
Description: "The address that acts on behalf of the owner.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721IsApprovedForAll,
logical.UpdateOperation: b.pathERC721IsApprovedForAll,
},
},
{
Pattern: ContractPath(erc721Contract, "TokenByIndex"),
HelpSynopsis: "TokenByIndex is a free data retrieval call binding the contract method 0x4f6ccce7.",
HelpDescription: `
TokenByIndex is a free data retrieval call binding the contract method 0x4f6ccce7.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"index": {
Type: framework.TypeString,
Description: "The index",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721TokenByIndex,
logical.UpdateOperation: b.pathERC721TokenByIndex,
},
},
{
Pattern: ContractPath(erc721Contract, "TokenOfOwnerByIndex"),
HelpSynopsis: "TokenOfOwnerByIndex is a free data retrieval call binding the contract method 0x2f745c59.",
HelpDescription: `
TokenByIndex is a free data retrieval call binding the contract method 0x2f745c59.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"owner": {
Type: framework.TypeString,
Description: "Address to add to the set of authorized operators.",
},
"index": {
Type: framework.TypeString,
Description: "The index",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721TokenOfOwnerByIndex,
logical.UpdateOperation: b.pathERC721TokenOfOwnerByIndex,
},
},
{
Pattern: ContractPath(erc721Contract, "Metadata"),
HelpSynopsis: "This returns TotalSupply, Name, and Symbol.",
HelpDescription: `
Metadata calls free data retrieval methods at 0x18160ddd, 0x06fdde03, 0x95d89b41.
This returns TotalSupply, Name, and Symbol
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721Metadata,
logical.UpdateOperation: b.pathERC721Metadata,
},
},
{
Pattern: ContractPath(erc721Contract, "TokenURI"),
HelpSynopsis: "TokenURI is a free data retrieval call binding the contract method 0xc87b56dd.",
HelpDescription: `
TokenURI is a free data retrieval call binding the contract method 0xc87b56dd.
`,
Fields: map[string]*framework.FieldSchema{
"name": {Type: framework.TypeString},
"contract": {
Type: framework.TypeString,
Description: "The address of the ERC-721 NFT.",
},
"token_id": {
Type: framework.TypeString,
Description: "The NFT.",
},
},
ExistenceCheck: pathExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.pathERC721TokenURI,
logical.UpdateOperation: b.pathERC721TokenURI,
},
},
}
}
// /**
// * @dev Transfers the ownership of an NFT from one address to another address.
// * @notice Throws unless `msg.sender` is the current owner, an authorized operator, or the
// * approved address for this NFT. Throws if `_from` is not the current owner. Throws if `_to` is
// * the zero address. Throws if `_tokenId` is not a valid NFT. When transfer is complete, this
// * function checks if `_to` is a smart contract (code size > 0). If so, it calls
// * `onERC721Received` on `_to` and throws if the return value is not
// * `bytes4(keccak256("onERC721Received(address,uint256,bytes)"))`.
// * @param _from The current owner of the NFT.
// * @param _to The new owner.
// * @param _tokenId The NFT to transfer.
// * @param _data Additional data with no specified format, sent in call to `_to`.
// */
// function safeTransferFrom(
// address _from,
// address _to,
// uint256 _tokenId,
// bytes calldata _data
// )
func (b *PluginBackend) pathERC721SafeTransferFrom(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
var additionalData []byte
config, err := b.configured(ctx, req)
if err != nil {
return nil, err
}
name := data.Get("name").(string)
tokenID := util.ValidNumber(data.Get("token_id").(string))
dataOrFile := data.Get("data").(string)
encoding := data.Get("encoding").(string)
if encoding == "hex" {
additionalData, err = util.Decode([]byte(dataOrFile))
if err != nil {
return nil, err
}
} else if encoding == "utf8" {
additionalData = []byte(dataOrFile)
} else {
return nil, fmt.Errorf("invalid encoding encountered - %s", encoding)
}
accountJSON, err := readAccount(ctx, req, name)
if err != nil {
return nil, err
}
wallet, account, err := getWalletAndAccount(*accountJSON)
if err != nil {
return nil, err
}
tokenAddress, err := common.HexToAddress(data.Get("contract").(string))
if err != nil {
return nil, err
}
chainID := util.ValidNumber(config.ChainID)
if chainID == nil {
return nil, fmt.Errorf("invalid chain ID")
}
client, err := xcbclient.Dial(config.getRPCURL())
if err != nil {
return nil, err
}
instance, err := erc721.NewErc721(tokenAddress, client)
if err != nil {
return nil, err
}
callOpts := &bind.CallOpts{}
transactionParams, err := b.getBaseData(client, account.Address, data, "to")
if err != nil {
return nil, err
}
err = config.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
err = accountJSON.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
transactOpts, err := b.NewWalletTransactor(chainID, wallet, account)
if err != nil {
return nil, err
}
//transactOpts needs gas etc.
tokenSession := &erc721.Erc721Session{
Contract: instance, // Generic contract caller binding to set the session for
CallOpts: *callOpts, // Call options to use throughout this session
TransactOpts: *transactOpts,
}
tx, err := tokenSession.SafeTransferFrom0(account.Address, *transactionParams.Address, tokenID, additionalData)
if err != nil {
return nil, err
}
var signedTxBuff bytes.Buffer
tx.EncodeRLP(&signedTxBuff)
return &logical.Response{
Data: map[string]interface{}{
"contract": tokenAddress.Hex(),
"token_id": tokenID.String(),
"data": dataOrFile,
"encoding": encoding,
"transaction_hash": tx.Hash().Hex(),
"signed_transaction": hexutil.Encode(signedTxBuff.Bytes()),
"from": account.Address.Hex(),
"to": transactionParams.Address.String(),
"nonce": tx.Nonce(),
"gas_price": tx.EnergyPrice(),
"gas_limit": tx.Energy(),
},
}, nil
}
// /**
// * @dev Set or reaffirm the approved address for an NFT.
// * @notice The zero address indicates there is no approved address. Throws unless `msg.sender` is
// * the current NFT owner, or an authorized operator of the current owner.
// * @param _approved The new approved NFT controller.
// * @param _tokenId The NFT to approve.
// */
// function approve(
// address _approved,
// uint256 _tokenId
// )
func (b *PluginBackend) pathERC721Approve(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.configured(ctx, req)
if err != nil {
return nil, err
}
name := data.Get("name").(string)
tokenID := util.ValidNumber(data.Get("token_id").(string))
accountJSON, err := readAccount(ctx, req, name)
if err != nil {
return nil, err
}
wallet, account, err := getWalletAndAccount(*accountJSON)
if err != nil {
return nil, err
}
tokenAddress, err := common.HexToAddress(data.Get("contract").(string))
if err != nil {
return nil, err
}
chainID := util.ValidNumber(config.ChainID)
if chainID == nil {
return nil, fmt.Errorf("invalid chain ID")
}
client, err := xcbclient.Dial(config.getRPCURL())
if err != nil {
return nil, err
}
instance, err := erc721.NewErc721(tokenAddress, client)
if err != nil {
return nil, err
}
callOpts := &bind.CallOpts{}
transactionParams, err := b.getBaseData(client, account.Address, data, "approved")
if err != nil {
return nil, err
}
err = config.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
err = accountJSON.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
transactOpts, err := b.NewWalletTransactor(chainID, wallet, account)
if err != nil {
return nil, err
}
//transactOpts needs gas etc.
tokenSession := &erc721.Erc721Session{
Contract: instance, // Generic contract caller binding to set the session for
CallOpts: *callOpts, // Call options to use throughout this session
TransactOpts: *transactOpts,
}
tx, err := tokenSession.Approve(*transactionParams.Address, tokenID)
if err != nil {
return nil, err
}
var signedTxBuff bytes.Buffer
tx.EncodeRLP(&signedTxBuff)
return &logical.Response{
Data: map[string]interface{}{
"contract": tokenAddress.Hex(),
"token_id": tokenID.String(),
"transaction_hash": tx.Hash().Hex(),
"signed_transaction": hexutil.Encode(signedTxBuff.Bytes()),
"from": account.Address.Hex(),
"to": transactionParams.Address.String(),
"nonce": tx.Nonce(),
"gas_price": tx.EnergyPrice(),
"gas_limit": tx.Energy(),
},
}, nil
}
// /**
// * @dev Enables or disables approval for a third party ("operator") to manage all of
// * `msg.sender`'s assets. It also emits the ApprovalForAll event.
// * @notice The contract MUST allow multiple operators per owner.
// * @param _operator Address to add to the set of authorized operators.
// * @param _approved True if the operators is approved, false to revoke approval.
// */
// function setApprovalForAll(
// address _operator,
// bool _approved
// )
func (b *PluginBackend) pathERC721SetApprovalForAll(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.configured(ctx, req)
if err != nil {
return nil, err
}
name := data.Get("name").(string)
approved := data.Get("approved").(bool)
accountJSON, err := readAccount(ctx, req, name)
if err != nil {
return nil, err
}
wallet, account, err := getWalletAndAccount(*accountJSON)
if err != nil {
return nil, err
}
tokenAddress, err := common.HexToAddress(data.Get("contract").(string))
if err != nil {
return nil, err
}
chainID := util.ValidNumber(config.ChainID)
if chainID == nil {
return nil, fmt.Errorf("invalid chain ID")
}
client, err := xcbclient.Dial(config.getRPCURL())
if err != nil {
return nil, err
}
instance, err := erc721.NewErc721(tokenAddress, client)
if err != nil {
return nil, err
}
callOpts := &bind.CallOpts{}
transactionParams, err := b.getBaseData(client, account.Address, data, "operator")
if err != nil {
return nil, err
}
err = config.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
err = accountJSON.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
transactOpts, err := b.NewWalletTransactor(chainID, wallet, account)
if err != nil {
return nil, err
}
//transactOpts needs gas etc.
tokenSession := &erc721.Erc721Session{
Contract: instance, // Generic contract caller binding to set the session for
CallOpts: *callOpts, // Call options to use throughout this session
TransactOpts: *transactOpts,
}
tx, err := tokenSession.SetApprovalForAll(*transactionParams.Address, approved)
if err != nil {
return nil, err
}
var signedTxBuff bytes.Buffer
tx.EncodeRLP(&signedTxBuff)
return &logical.Response{
Data: map[string]interface{}{
"contract": tokenAddress.Hex(),
"approved": approved,
"transaction_hash": tx.Hash().Hex(),
"signed_transaction": hexutil.Encode(signedTxBuff.Bytes()),
"from": account.Address.Hex(),
"operator": transactionParams.Address.String(),
"nonce": tx.Nonce(),
"gas_price": tx.EnergyPrice(),
"gas_limit": tx.Energy(),
},
}, nil
}
// /**
// * @dev Returns the number of NFTs owned by `_owner`. NFTs assigned to the zero address are
// * considered invalid, and this function throws for queries about the zero address.
// * @param _owner Address for whom to query the balance.
// * @return Balance of _owner.
// */
// function balanceOf(
// address _owner
// )
func (b *PluginBackend) pathERC721BalanceOf(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.configured(ctx, req)
if err != nil {
return nil, err
}
name := data.Get("name").(string)
accountJSON, err := readAccount(ctx, req, name)
if err != nil {
return nil, err
}
wallet, account, err := getWalletAndAccount(*accountJSON)
if err != nil {
return nil, err
}
tokenAddress, err := common.HexToAddress(data.Get("contract").(string))
if err != nil {
return nil, err
}
chainID := util.ValidNumber(config.ChainID)
if chainID == nil {
return nil, fmt.Errorf("invalid chain ID")
}
client, err := xcbclient.Dial(config.getRPCURL())
if err != nil {
return nil, err
}
instance, err := erc721.NewErc721(tokenAddress, client)
if err != nil {
return nil, err
}
callOpts := &bind.CallOpts{}
transactionParams, err := b.getBaseData(client, account.Address, data, "owner")
if err != nil {
return nil, err
}
err = config.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
err = accountJSON.ValidAddress(transactionParams.Address)
if err != nil {
return nil, err
}
transactOpts, err := b.NewWalletTransactor(chainID, wallet, account)
if err != nil {
return nil, err
}
//transactOpts needs gas etc.
tokenSession := &erc721.Erc721Session{
Contract: instance, // Generic contract caller binding to set the session for
CallOpts: *callOpts, // Call options to use throughout this session
TransactOpts: *transactOpts,
}
balance, err := tokenSession.BalanceOf(*transactionParams.Address)
if err != nil {
return nil, err
}
return &logical.Response{
Data: map[string]interface{}{
"contract": tokenAddress.Hex(),
"balance": balance.String(),
"owner": transactionParams.Address.String(),
},
}, nil
}
// /**
// * @dev Returns the address of the owner of the NFT. NFTs assigned to zero address are considered
// * invalid, and queries about them do throw.
// * @param _tokenId The identifier for an NFT.
// * @return Address of _tokenId owner.
// */
// function ownerOf(
// uint256 _tokenId
// )
func (b *PluginBackend) pathERC721OwnerOf(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.configured(ctx, req)
if err != nil {
return nil, err
}
name := data.Get("name").(string)
tokenID := util.ValidNumber(data.Get("token_id").(string))
accountJSON, err := readAccount(ctx, req, name)
if err != nil {
return nil, err
}
wallet, account, err := getWalletAndAccount(*accountJSON)
if err != nil {
return nil, err
}
tokenAddress, err := common.HexToAddress(data.Get("contract").(string))
if err != nil {
return nil, err
}
chainID := util.ValidNumber(config.ChainID)
if chainID == nil {
return nil, fmt.Errorf("invalid chain ID")
}
client, err := xcbclient.Dial(config.getRPCURL())
if err != nil {
return nil, err
}
instance, err := erc721.NewErc721(tokenAddress, client)
if err != nil {
return nil, err
}
callOpts := &bind.CallOpts{}
transactOpts, err := b.NewWalletTransactor(chainID, wallet, account)
if err != nil {
return nil, err
}
//transactOpts needs gas etc.
tokenSession := &erc721.Erc721Session{
Contract: instance, // Generic contract caller binding to set the session for
CallOpts: *callOpts, // Call options to use throughout this session
TransactOpts: *transactOpts,
}
owner, err := tokenSession.OwnerOf(tokenID)
if err != nil {
return nil, err
}
return &logical.Response{
Data: map[string]interface{}{
"contract": tokenAddress.Hex(),
"owner": owner.Hex(),
"token_id": tokenID.String(),
},
}, nil
}
// /**
// * @dev Get the approved address for a single NFT.
// * @notice Throws if `_tokenId` is not a valid NFT.
// * @param _tokenId The NFT to find the approved address for.
// * @return Address that _tokenId is approved for.
// */
// function getApproved(
// uint256 _tokenId
// )
func (b *PluginBackend) pathERC721GetApproved(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.configured(ctx, req)
if err != nil {
return nil, err
}
name := data.Get("name").(string)
tokenID := util.ValidNumber(data.Get("token_id").(string))
accountJSON, err := readAccount(ctx, req, name)
if err != nil {
return nil, err
}
wallet, account, err := getWalletAndAccount(*accountJSON)
if err != nil {
return nil, err
}
tokenAddress, err := common.HexToAddress(data.Get("contract").(string))
if err != nil {
return nil, err
}
chainID := util.ValidNumber(config.ChainID)
if chainID == nil {
return nil, fmt.Errorf("invalid chain ID")
}
client, err := xcbclient.Dial(config.getRPCURL())
if err != nil {
return nil, err
}
instance, err := erc721.NewErc721(tokenAddress, client)
if err != nil {
return nil, err
}
callOpts := &bind.CallOpts{}
transactOpts, err := b.NewWalletTransactor(chainID, wallet, account)
if err != nil {
return nil, err
}
//transactOpts needs gas etc.
tokenSession := &erc721.Erc721Session{
Contract: instance, // Generic contract caller binding to set the session for
CallOpts: *callOpts, // Call options to use throughout this session
TransactOpts: *transactOpts,
}
approved, err := tokenSession.GetApproved(tokenID)
if err != nil {
return nil, err
}
return &logical.Response{
Data: map[string]interface{}{
"contract": tokenAddress.Hex(),
"approved": approved.Hex(),
"token_id": tokenID.String(),
},
}, nil
}
// /**
// * @dev Returns true if `_operator` is an approved operator for `_owner`, false otherwise.
// * @param _owner The address that owns the NFTs.
// * @param _operator The address that acts on behalf of the owner.
// * @return True if approved for all, false otherwise.
// */
// function isApprovedForAll(
// address _owner,
// address _operator
// )
func (b *PluginBackend) pathERC721IsApprovedForAll(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
config, err := b.configured(ctx, req)
if err != nil {