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fa12.go
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fa12.go
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package rpc
import (
"encoding/json"
"regexp"
"strconv"
"github.com/go-resty/resty/v2"
"github.com/pkg/errors"
)
/*
GetFA12BalanceInput is the input for the goTezos.GetFA12Balance function.
Function:
func (c *Client) GetFA12Balance(input GetFA12BalanceInput) (int, error) {}
*/
type GetFA12BalanceInput struct {
// The block of which you want to make the query. If not provided Cycle is required.
BlockID BlockID
// The cycle to get the balance at. If not provided Blockhash is required.
Cycle int
// ChainID is the Chain ID of the chain you want to query
ChainID string `validate:"required"`
// Source to form the contents with. The operation is not forged or injected so it is possible for XTZ to be spent.
Source string `validate:"required"`
// FA12Contract address of the FA1.2 Contract you wish to query.
FA12Contract string `validate:"required"`
// OwnerAddress is the address to get the balance for in the FA1.2 contract
OwnerAddress string `validate:"required"`
// If true the function will use an intermediate contract deployed on Carthagenet, default mainnet.
Testnet bool
// If provided this will be the contract view address used to query the FA1.2 contract
ContractViewAddress string
}
/*
GetFA12SupplyInput is the input for the goTezos.GetFA12Supply function.
Function:
func (c *Client) GetFA12Supply(input GetFA12SupplyInput) (int, error) {}
*/
type GetFA12SupplyInput struct {
// The block of which you want to make the query. If not provided Cycle is required.
BlockID BlockID
// The cycle to get the balance at. If not provided Blockhash is required.
Cycle int
// ChainID is the Chain ID of the chain you want to query
ChainID string `validate:"required"`
// Source to form the contents with. The operation is not forged or injected so it is possible for XTZ to be spent.
Source string `validate:"required"`
// FA12Contract address of the FA1.2 Contract you wish to query.
FA12Contract string `validate:"required"`
// If true the function will use an intermediate contract deployed on Carthagenet, default mainnet.
Testnet bool
// If provided this will be the contract view address used to query the FA1.2 contract
ContractViewAddress string
}
/*
GetFA12AllowanceInput is the input for the goTezos.GetFA12Allowance function.
Function:
func (c *Client) GetFA12Allowance(input GetFA12AllowanceInput) (int, error) {}
*/
type GetFA12AllowanceInput struct {
// The block of which you want to make the query. If not provided Cycle is required.
BlockID BlockID
// The cycle to get the balance at. If not provided Blockhash is required.
Cycle int
// ChainID is the Chain ID of the chain you want to query
ChainID string `validate:"required"`
// Source to form the contents with. The operation is not forged or injected so it is possible for XTZ to be spent.
Source string `validate:"required"`
// FA12Contract address of the FA1.2 Contract you wish to query.
FA12Contract string `validate:"required"`
// OwnerAddress is the address to get the balance for in the FA1.2 contract
OwnerAddress string `validate:"required"`
// SpenderAddress is the address to check an allowance for on behalf of an owner
SpenderAddress string `validate:"required"`
// If true the function will use an intermediate contract deployed on Carthagenet, default mainnet.
Testnet bool
// If provided this will be the contract view address used to query the FA1.2 contract
ContractViewAddress string
}
var (
regexTokenAddress = regexp.MustCompile(`\$token_address`)
regexOwnerAddress = regexp.MustCompile(`\$owner`)
regexSpenderAddress = regexp.MustCompile(`\$spender`)
regexContractViewAddress = regexp.MustCompile(`\$contract_view_address`)
regexBalance = regexp.MustCompile(`"int":"([0-9]+)"`)
)
const (
defaultBalanceArgs = `[{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]},{"prim":"NONE","args":[{"prim":"key_hash"}]},{"prim":"CREATE_CONTRACT","args":[[{"prim":"parameter","args":[{"prim":"nat"}]},{"prim":"storage","args":[{"prim":"unit"}]},{"prim":"code","args":[[{"prim":"FAILWITH"}]]}]]},{"prim":"DIP","args":[[{"prim":"DIP","args":[[{"prim":"LAMBDA","args":[{"prim":"pair","args":[{"prim":"address"},{"prim":"unit"}]},{"prim":"pair","args":[{"prim":"list","args":[{"prim":"operation"}]},{"prim":"unit"}]},[{"prim":"CAR"},{"prim":"CONTRACT","args":[{"prim":"nat"}]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CREATE_CALLBACK_CONTRACT_FAILED"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"address"},{"string":"$owner"}]},{"prim":"PAIR"},{"prim":"DIP","args":[[{"prim":"PUSH","args":[{"prim":"address"},{"string":"$token_address"}]},{"prim":"CONTRACT","args":[{"prim":"pair","args":[{"prim":"address"},{"prim":"contract","args":[{"prim":"nat"}]}]}],"annots":["%getBalance"]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CONTRACT_NOT_FA1.2"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]}]]},{"prim":"TRANSFER_TOKENS"},{"prim":"DIP","args":[[{"prim":"NIL","args":[{"prim":"operation"}]}]]},{"prim":"CONS"},{"prim":"DIP","args":[[{"prim":"UNIT"}]]},{"prim":"PAIR"}]]}]]},{"prim":"APPLY"},{"prim":"DIP","args":[[{"prim":"PUSH","args":[{"prim":"address"},{"string":"$contract_view_address"}]},{"prim":"CONTRACT","args":[{"prim":"lambda","args":[{"prim":"unit"},{"prim":"pair","args":[{"prim":"list","args":[{"prim":"operation"}]},{"prim":"unit"}]}]}]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CALLBACK_CONTRACT_INCORRECT_TYPE"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]}]]},{"prim":"TRANSFER_TOKENS"},{"prim":"DIP","args":[[{"prim":"NIL","args":[{"prim":"operation"}]}]]},{"prim":"CONS"}]]},{"prim":"CONS"},{"prim":"DIP","args":[[{"prim":"UNIT"}]]},{"prim":"PAIR"}]`
defaultTotalSupplyArgs = `[{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]},{"prim":"NONE","args":[{"prim":"key_hash"}]},{"prim":"CREATE_CONTRACT","args":[[{"prim":"parameter","args":[{"prim":"nat"}]},{"prim":"storage","args":[{"prim":"unit"}]},{"prim":"code","args":[[{"prim":"FAILWITH"}]]}]]},{"prim":"DIP","args":[[{"prim":"DIP","args":[[{"prim":"LAMBDA","args":[{"prim":"pair","args":[{"prim":"address"},{"prim":"unit"}]},{"prim":"pair","args":[{"prim":"list","args":[{"prim":"operation"}]},{"prim":"unit"}]},[{"prim":"CAR"},{"prim":"CONTRACT","args":[{"prim":"nat"}]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CREATE_CALLBACK_CONTRACT_FAILED"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"unit"},{"prim":"Unit"}]},{"prim":"PAIR"},{"prim":"DIP","args":[[{"prim":"PUSH","args":[{"prim":"address"},{"string":"$token_address"}]},{"prim":"CONTRACT","args":[{"prim":"pair","args":[{"prim":"unit"},{"prim":"contract","args":[{"prim":"nat"}]}]}],"annots":["%getTotalSupply"]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CONTRACT_NOT_FA1.2"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]}]]},{"prim":"TRANSFER_TOKENS"},{"prim":"DIP","args":[[{"prim":"NIL","args":[{"prim":"operation"}]}]]},{"prim":"CONS"},{"prim":"DIP","args":[[{"prim":"UNIT"}]]},{"prim":"PAIR"}]]}]]},{"prim":"APPLY"},{"prim":"DIP","args":[[{"prim":"PUSH","args":[{"prim":"address"},{"string":"$contract_view_address"}]},{"prim":"CONTRACT","args":[{"prim":"lambda","args":[{"prim":"unit"},{"prim":"pair","args":[{"prim":"list","args":[{"prim":"operation"}]},{"prim":"unit"}]}]}]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CALLBACK_CONTRACT_INCORRECT_TYPE"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]}]]},{"prim":"TRANSFER_TOKENS"},{"prim":"DIP","args":[[{"prim":"NIL","args":[{"prim":"operation"}]}]]},{"prim":"CONS"}]]},{"prim":"CONS"},{"prim":"DIP","args":[[{"prim":"UNIT"}]]},{"prim":"PAIR"}]`
defaultAllowanceArgs = `[{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]},{"prim":"NONE","args":[{"prim":"key_hash"}]},{"prim":"CREATE_CONTRACT","args":[[{"prim":"parameter","args":[{"prim":"nat"}]},{"prim":"storage","args":[{"prim":"unit"}]},{"prim":"code","args":[[{"prim":"FAILWITH"}]]}]]},{"prim":"DIP","args":[[{"prim":"DIP","args":[[{"prim":"LAMBDA","args":[{"prim":"pair","args":[{"prim":"address"},{"prim":"unit"}]},{"prim":"pair","args":[{"prim":"list","args":[{"prim":"operation"}]},{"prim":"unit"}]},[{"prim":"CAR"},{"prim":"CONTRACT","args":[{"prim":"nat"}]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CREATE_CALLBACK_CONTRACT_FAILED"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"address"},{"string":"$spender"}]},{"prim":"PUSH","args":[{"prim":"address"},{"string":"$owner"}]},{"prim":"PAIR"},{"prim":"PAIR"},{"prim":"DIP","args":[[{"prim":"PUSH","args":[{"prim":"address"},{"string":"$token_address"}]},{"prim":"CONTRACT","args":[{"prim":"pair","args":[{"prim":"pair","args":[{"prim":"address"},{"prim":"address"}]},{"prim":"contract","args":[{"prim":"nat"}]}]}],"annots":["%getAllowance"]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CONTRACT_NOT_FA1.2"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]}]]},{"prim":"TRANSFER_TOKENS"},{"prim":"DIP","args":[[{"prim":"NIL","args":[{"prim":"operation"}]}]]},{"prim":"CONS"},{"prim":"DIP","args":[[{"prim":"UNIT"}]]},{"prim":"PAIR"}]]}]]},{"prim":"APPLY"},{"prim":"DIP","args":[[{"prim":"PUSH","args":[{"prim":"address"},{"string":"$contract_view_address"}]},{"prim":"CONTRACT","args":[{"prim":"lambda","args":[{"prim":"unit"},{"prim":"pair","args":[{"prim":"list","args":[{"prim":"operation"}]},{"prim":"unit"}]}]}]},{"prim":"IF_NONE","args":[[{"prim":"PUSH","args":[{"prim":"string"},{"string":"CALLBACK_CONTRACT_INCORRECT_TYPE"}]},{"prim":"FAILWITH"}],[]]},{"prim":"PUSH","args":[{"prim":"mutez"},{"int":"0"}]}]]},{"prim":"TRANSFER_TOKENS"},{"prim":"DIP","args":[[{"prim":"NIL","args":[{"prim":"operation"}]}]]},{"prim":"CONS"}]]},{"prim":"CONS"},{"prim":"DIP","args":[[{"prim":"UNIT"}]]},{"prim":"PAIR"}]`
)
func newBalanceArgs(contractViewAddress, tokenAddress, ownerAddress string) []byte {
args := regexOwnerAddress.ReplaceAllString(defaultBalanceArgs, ownerAddress)
args = regexTokenAddress.ReplaceAllString(args, tokenAddress)
args = regexContractViewAddress.ReplaceAllString(args, contractViewAddress)
return []byte(args)
}
func newTotalSupplyArgs(contractViewAddress, tokenAddress string) []byte {
args := regexTokenAddress.ReplaceAllString(defaultTotalSupplyArgs, tokenAddress)
args = regexContractViewAddress.ReplaceAllString(args, contractViewAddress)
return []byte(args)
}
func newAllowanceArgs(contractViewAddress, tokenAddress, ownerAddress, spenderAddress string) []byte {
args := regexOwnerAddress.ReplaceAllString(defaultAllowanceArgs, ownerAddress)
args = regexTokenAddress.ReplaceAllString(args, tokenAddress)
args = regexContractViewAddress.ReplaceAllString(args, contractViewAddress)
args = regexSpenderAddress.ReplaceAllString(args, spenderAddress)
return []byte(args)
}
func parseBalance(operation Operations) (string, error) {
if len(operation.Contents) > 0 {
transaction := operation.Contents[0].ToTransaction()
if transaction.Metadata != nil {
if len(transaction.Metadata.InternalOperationResults) >= 4 {
internalOperationResult := transaction.Metadata.InternalOperationResults[3]
if len(internalOperationResult.Result.Errors) >= 2 {
operationErr := internalOperationResult.Result.Errors[1]
val := string([]byte(*operationErr.With))
ints := regexBalance.FindStringSubmatch(val)
if len(ints) == 2 {
return ints[1], nil
}
}
}
}
}
return "0", errors.New("failed to parse balance from response")
}
func parseSupply(operation Operations) (string, error) {
if len(operation.Contents) > 0 {
transaction := operation.Contents[0].ToTransaction()
if transaction.Metadata != nil {
if len(transaction.Metadata.InternalOperationResults) >= 4 {
internalOperationResult := transaction.Metadata.InternalOperationResults[3]
if len(internalOperationResult.Result.Errors) >= 2 {
operationErr := internalOperationResult.Result.Errors[1]
val := string([]byte(*operationErr.With))
ints := regexBalance.FindStringSubmatch(val)
if len(ints) == 2 {
return ints[1], nil
}
}
}
}
}
return "0", errors.New("failed to parse supply from response")
}
func parseAllowance(operation Operations) (string, error) {
if len(operation.Contents) > 0 {
transaction := operation.Contents[0].ToTransaction()
if transaction.Metadata != nil {
if len(transaction.Metadata.InternalOperationResults) >= 4 {
internalOperationResult := transaction.Metadata.InternalOperationResults[3]
if len(internalOperationResult.Result.Errors) >= 2 {
operationErr := internalOperationResult.Result.Errors[1]
val := string([]byte(*operationErr.With))
ints := regexBalance.FindStringSubmatch(val)
if len(ints) == 2 {
return ints[1], nil
}
}
}
}
}
return "0", errors.New("failed to parse allowance from response")
}
/*
GetFA12Balance is a helper function to get the balance of a participant in an FA1.2 contracts.
There isn't really a good way to get the balance naturally because the FA1.2 contract entrypoints
are meant to be called from another contract. As a result of this this function will run an operation
that calls an intermediary contract which calls the FA1.2 contract and parses the result.
See: https://gitlab.com/camlcase-dev/dexter-integration/-/blob/master/call_fa1.2_view_entrypoints.md
*/
func (c *Client) GetFA12Balance(input GetFA12BalanceInput) (*resty.Response, string, error) {
resp, blockID, err := c.processContextRequest(input, input.Cycle, input.BlockID)
if err != nil {
return resp, "", errors.Wrapf(err, "failed to get fa1.2 balance for '%s' in contract '%s'", input.OwnerAddress, input.FA12Contract)
}
resp, counter, err := c.ContractCounter(ContractCounterInput{
BlockID: blockID,
ContractID: input.Source,
})
if err != nil {
return resp, "0", errors.Wrapf(err, "failed to get fa1.2 balance for '%s' in contract '%s'", input.OwnerAddress, input.FA12Contract)
}
counter++
if input.ContractViewAddress == "" {
if !input.Testnet {
input.ContractViewAddress = "KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE"
}
input.ContractViewAddress = "KT1Njyz94x2pNJGh5uMhKj24VB9JsGCdkySN"
}
parameters := json.RawMessage(newBalanceArgs(input.ContractViewAddress, input.FA12Contract, input.OwnerAddress))
contents := Contents{
{
Kind: TRANSACTION,
Source: input.Source,
Destination: input.ContractViewAddress,
Fee: "0",
GasLimit: "1040000",
StorageLimit: "60000",
Amount: "0",
Counter: strconv.Itoa(counter),
Parameters: &Parameters{
Entrypoint: "default",
Value: ¶meters,
},
},
}
resp, operation, err := c.RunOperation(RunOperationInput{
BlockID: blockID,
Operation: RunOperation{
Operation: Operations{
Branch: blockID.ID(),
Contents: contents,
Signature: "edsigtXomBKi5CTRf5cjATJWSyaRvhfYNHqSUGrn4SdbYRcGwQrUGjzEfQDTuqHhuA8b2d8NarZjz8TRf65WkpQmo423BtomS8Q", // no validation on sig for this func
},
ChainID: input.ChainID,
},
})
if err != nil {
return resp, "0", errors.Wrapf(err, "failed to get fa1.2 balance for '%s' in contract '%s'", input.OwnerAddress, input.FA12Contract)
}
balance, err := parseBalance(operation)
if err != nil {
return resp, "0", errors.Wrapf(err, "failed to get fa1.2 balance for '%s' in contract '%s'", input.OwnerAddress, input.FA12Contract)
}
return resp, balance, nil
}
/*
GetFA12Supply is a helper function to get the total supply of an FA1.2 contract.
There isn't really a good way to get the supply naturally because the FA1.2 contract entrypoints
are meant to be called from another contract. As a result of this this function will run an operation
that calls an intermediary contract which calls the FA1.2 contract and parses the result.
See: https://gitlab.com/camlcase-dev/dexter-integration/-/blob/master/call_fa1.2_view_entrypoints.md
*/
func (c *Client) GetFA12Supply(input GetFA12SupplyInput) (*resty.Response, string, error) {
resp, blockID, err := c.processContextRequest(input, input.Cycle, input.BlockID)
if err != nil {
return resp, "0", errors.Wrapf(err, "failed to get fa1.2 supply for contract '%s'", input.FA12Contract)
}
resp, counter, err := c.ContractCounter(ContractCounterInput{
BlockID: blockID,
ContractID: input.Source,
})
if err != nil {
return resp, "0", err
}
counter++
if input.ContractViewAddress == "" {
if !input.Testnet {
input.ContractViewAddress = "KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE"
}
input.ContractViewAddress = "KT1Njyz94x2pNJGh5uMhKj24VB9JsGCdkySN"
}
parameters := json.RawMessage(newTotalSupplyArgs(input.ContractViewAddress, input.FA12Contract))
contents := Contents{
{
Kind: TRANSACTION,
Source: input.Source,
Destination: input.ContractViewAddress,
Fee: "0",
GasLimit: "1040000",
StorageLimit: "60000",
Amount: "0",
Counter: strconv.Itoa(counter),
Parameters: &Parameters{
Entrypoint: "default",
Value: ¶meters,
},
},
}
resp, operation, err := c.RunOperation(RunOperationInput{
BlockID: blockID,
Operation: RunOperation{
Operation: Operations{
Branch: blockID.ID(),
Contents: contents,
Signature: "edsigtXomBKi5CTRf5cjATJWSyaRvhfYNHqSUGrn4SdbYRcGwQrUGjzEfQDTuqHhuA8b2d8NarZjz8TRf65WkpQmo423BtomS8Q",
},
ChainID: input.ChainID,
},
})
if err != nil {
return resp, "0", err
}
supply, err := parseSupply(operation)
return resp, supply, err
}
/*
GetFA12Allowance is a helper function to get the allowance of an FA1.2 contract.
There isn't really a good way to get the allowance naturally because the FA1.2 contract entrypoints
are meant to be called from another contract. As a result of this this function will run an operation
that calls an intermediary contract which calls the FA1.2 contract and parses the result.
See: https://gitlab.com/camlcase-dev/dexter-integration/-/blob/master/call_fa1.2_view_entrypoints.md
*/
func (c *Client) GetFA12Allowance(input GetFA12AllowanceInput) (*resty.Response, string, error) {
resp, blockID, err := c.processContextRequest(input, input.Cycle, input.BlockID)
if err != nil {
return resp, "0", errors.Wrapf(err, "failed to get fa1.2 balance for '%s' in contract '%s'", input.OwnerAddress, input.FA12Contract)
}
resp, counter, err := c.ContractCounter(ContractCounterInput{
BlockID: blockID,
ContractID: input.Source,
})
if err != nil {
return resp, "0", err
}
counter++
if input.ContractViewAddress == "" {
if !input.Testnet {
input.ContractViewAddress = "KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE"
}
input.ContractViewAddress = "KT1Njyz94x2pNJGh5uMhKj24VB9JsGCdkySN"
}
parameters := json.RawMessage(newAllowanceArgs(input.ContractViewAddress, input.FA12Contract, input.OwnerAddress, input.SpenderAddress))
contents := Contents{
{
Kind: TRANSACTION,
Source: input.Source,
Destination: input.ContractViewAddress,
Fee: "0",
GasLimit: "1040000",
StorageLimit: "60000",
Amount: "0",
Counter: strconv.Itoa(counter),
Parameters: &Parameters{
Entrypoint: "default",
Value: ¶meters,
},
},
}
resp, operation, err := c.RunOperation(RunOperationInput{
BlockID: blockID,
Operation: RunOperation{
Operation: Operations{
Branch: blockID.ID(),
Contents: contents,
Signature: "edsigtXomBKi5CTRf5cjATJWSyaRvhfYNHqSUGrn4SdbYRcGwQrUGjzEfQDTuqHhuA8b2d8NarZjz8TRf65WkpQmo423BtomS8Q",
},
ChainID: input.ChainID,
},
})
if err != nil {
return resp, "0", err
}
allowance, err := parseAllowance(operation)
return resp, allowance, err
}