smartcontract: add user-facing testinvokefunction command
With a very special syntax.
This commit is contained in:
Roman Khimov
parent
05f3329ec0
commit
e63b25d5ad
3 changed files with 670 additions and 0 deletions
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@ -14,6 +14,7 @@ import (
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"github.com/CityOfZion/neo-go/pkg/crypto/hash"
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"github.com/CityOfZion/neo-go/pkg/crypto/keys"
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"github.com/CityOfZion/neo-go/pkg/rpc"
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"github.com/CityOfZion/neo-go/pkg/smartcontract"
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"github.com/CityOfZion/neo-go/pkg/util"
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"github.com/CityOfZion/neo-go/pkg/vm"
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"github.com/CityOfZion/neo-go/pkg/vm/compiler"
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@ -27,6 +28,7 @@ var (
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errNoInput = errors.New("no input file was found, specify an input file with the '--in or -i' flag")
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errNoConfFile = errors.New("no config file was found, specify a config file with the '--config' or '-c' flag")
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errNoWIF = errors.New("no WIF parameter found, specify it with the '--wif or -w' flag")
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errNoScriptHash = errors.New("no smart contract hash was provided, specify one as the first argument")
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errNoSmartContractName = errors.New("no name was provided, specify the '--name or -n' flag")
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errFileExist = errors.New("A file with given smart-contract name already exists")
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)
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@ -95,6 +97,80 @@ func NewCommands() []cli.Command {
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},
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},
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},
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{
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Name: "testinvokefunction",
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Usage: "invoke deployed contract on the blockchain (test mode)",
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UsageText: "neo-go contract testinvokefunction -e endpoint scripthash [method] [arguments...]",
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Description: `Executes given (as a script hash) deployed script with the given method and
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arguments. If no method is given "" is passed to the script, if no arguments
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are given, an empty array is passed. All of the given arguments are
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encapsulated into array before invoking the script. The script thus should
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follow the regular convention of smart contract arguments (method string and
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an array of other arguments).
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Arguments always do have regular Neo smart contract parameter types, either
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specified explicitly or being inferred from the value. To specify the type
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manually use "type:value" syntax where the type is one of the following:
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'signature', 'bool', 'int', 'hash160', 'hash256', 'bytes', 'key' or 'string'.
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Array types are not currently supported.
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Given values are type-checked against given types with the following
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restrictions applied:
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* 'signature' type values should be hex-encoded and have a (decoded)
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length of 64 bytes.
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* 'bool' type values are 'true' and 'false'.
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* 'int' values are decimal integers that can be successfully converted
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from the string.
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* 'hash160' values are Neo addresses and hex-encoded 20-bytes long (after
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decoding) strings.
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* 'hash256' type values should be hex-encoded and have a (decoded)
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length of 32 bytes.
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* 'bytes' type values are any hex-encoded things.
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* 'key' type values are hex-encoded marshalled public keys.
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* 'string' type values are any valid UTF-8 strings. In the value's part of
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the string the colon looses it's special meaning as a separator between
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type and value and is taken literally.
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If no type is explicitly specified, it is inferred from the value using the
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following logic:
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- anything that can be interpreted as a decimal integer gets
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an 'int' type
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- 'true' and 'false' strings get 'bool' type
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- valid Neo addresses and 20 bytes long hex-encoded strings get 'hash160'
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type
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- valid hex-encoded public keys get 'key' type
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- 32 bytes long hex-encoded values get 'hash256' type
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- 64 bytes long hex-encoded values get 'signature' type
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- any other valid hex-encoded values get 'bytes' type
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- anything else is a 'string'
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Backslash character is used as an escape character and allows to use colon in
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an implicitly typed string. For any other characters it has no special
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meaning, to get a literal backslash in the string use the '\\' sequence.
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Examples:
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* 'int:42' is an integer with a value of 42
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* '42' is an integer with a value of 42
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* 'bad' is a string with a value of 'bad'
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* 'dead' is a byte array with a value of 'dead'
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* 'string:dead' is a string with a value of 'dead'
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* 'AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y' is a hash160 with a value
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of '23ba2703c53263e8d6e522dc32203339dcd8eee9'
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* '\4\2' is an integer with a value of 42
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* '\\4\2' is a string with a value of '\42'
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* 'string:string' is a string with a value of 'string'
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* 'string\:string' is a string with a value of 'string:string'
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* '03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c' is a
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key with a value of '03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c'
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`,
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Action: testInvokeFunction,
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "endpoint, e",
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Usage: "RPC endpoint address (like 'http://seed4.ngd.network:20332')",
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},
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},
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},
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{
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Name: "testinvokescript",
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Usage: "Invoke compiled AVM code on the blockchain (test mode, not creating a transaction for it)",
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@ -211,6 +287,52 @@ func contractCompile(ctx *cli.Context) error {
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return nil
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}
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func testInvokeFunction(ctx *cli.Context) error {
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endpoint := ctx.String("endpoint")
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if len(endpoint) == 0 {
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return cli.NewExitError(errNoEndpoint, 1)
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}
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args := ctx.Args()
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if !args.Present() {
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return cli.NewExitError(errNoScriptHash, 1)
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}
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script := args[0]
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operation := ""
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if len(args) > 1 {
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operation = args[1]
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}
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params := make([]smartcontract.Parameter, 0)
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if len(args) > 2 {
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for k, s := range args[2:] {
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param, err := smartcontract.NewParameterFromString(s)
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if err != nil {
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return cli.NewExitError(fmt.Errorf("failed to parse argument #%d: %v", k+2+1, err), 1)
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}
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params = append(params, *param)
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}
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}
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client, err := rpc.NewClient(context.TODO(), endpoint, rpc.ClientOptions{})
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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resp, err := client.InvokeFunction(script, operation, params)
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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b, err := json.MarshalIndent(resp.Result, "", " ")
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if err != nil {
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return cli.NewExitError(err, 1)
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}
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fmt.Println(string(b))
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return nil
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}
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func testInvokeScript(ctx *cli.Context) error {
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src := ctx.String("in")
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if len(src) == 0 {
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@ -1,6 +1,14 @@
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package smartcontract
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import (
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"encoding/hex"
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"errors"
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"strconv"
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"strings"
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"unicode/utf8"
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"github.com/CityOfZion/neo-go/pkg/crypto"
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"github.com/CityOfZion/neo-go/pkg/crypto/keys"
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"github.com/CityOfZion/neo-go/pkg/io"
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"github.com/CityOfZion/neo-go/pkg/util"
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)
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@ -89,6 +97,203 @@ func NewParameter(t ParamType) Parameter {
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}
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}
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// parseParamType is a user-friendly string to ParamType converter, it's
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// case-insensitive and makes the following conversions:
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// signature -> SignatureType
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// bool -> BoolType
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// int -> IntegerType
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// hash160 -> Hash160Type
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// hash256 -> Hash256Type
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// bytes -> ByteArrayType
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// key -> PublicKeyType
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// string -> StringType
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// anything else generates an error.
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func parseParamType(typ string) (ParamType, error) {
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switch strings.ToLower(typ) {
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case "signature":
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return SignatureType, nil
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case "bool":
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return BoolType, nil
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case "int":
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return IntegerType, nil
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case "hash160":
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return Hash160Type, nil
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case "hash256":
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return Hash256Type, nil
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case "bytes":
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return ByteArrayType, nil
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case "key":
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return PublicKeyType, nil
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case "string":
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return StringType, nil
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default:
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// We deliberately don't support array here.
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return 0, errors.New("wrong or unsupported parameter type")
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}
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}
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// adjustValToType is a value type-checker and converter.
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func adjustValToType(typ ParamType, val string) (interface{}, error) {
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switch typ {
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case SignatureType:
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b, err := hex.DecodeString(val)
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if err != nil {
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return nil, err
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}
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if len(b) != 64 {
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return nil, errors.New("not a signature")
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}
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return val, nil
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case BoolType:
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switch val {
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case "true":
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return true, nil
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case "false":
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return false, nil
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default:
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return nil, errors.New("invalid boolean value")
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}
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case IntegerType:
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return strconv.Atoi(val)
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case Hash160Type:
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u, err := crypto.Uint160DecodeAddress(val)
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if err == nil {
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return hex.EncodeToString(u.Bytes()), nil
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}
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b, err := hex.DecodeString(val)
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if err != nil {
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return nil, err
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}
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if len(b) != 20 {
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return nil, errors.New("not a hash160")
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}
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return val, nil
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case Hash256Type:
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b, err := hex.DecodeString(val)
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if err != nil {
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return nil, err
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}
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if len(b) != 32 {
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return nil, errors.New("not a hash256")
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}
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return val, nil
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case ByteArrayType:
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_, err := hex.DecodeString(val)
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if err != nil {
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return nil, err
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}
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return val, nil
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case PublicKeyType:
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_, err := keys.NewPublicKeyFromString(val)
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if err != nil {
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return nil, err
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}
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return val, nil
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case StringType:
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return val, nil
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default:
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return nil, errors.New("unsupported parameter type")
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}
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}
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// inferParamType tries to infer the value type from its contents. It returns
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// IntegerType for anything that looks like decimal integer (can be converted
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// with strconv.Atoi), BoolType for true and false values, Hash160Type for
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// addresses and hex strings encoding 20 bytes long values, PublicKeyType for
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// valid hex-encoded public keys, Hash256Type for hex-encoded 32 bytes values,
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// SignatureType for hex-encoded 64 bytes values, ByteArrayType for any other
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// valid hex-encoded values and StringType for anything else.
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func inferParamType(val string) ParamType {
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var err error
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_, err = strconv.Atoi(val)
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if err == nil {
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return IntegerType
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}
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if val == "true" || val == "false" {
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return BoolType
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}
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_, err = crypto.Uint160DecodeAddress(val)
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if err == nil {
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return Hash160Type
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}
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_, err = keys.NewPublicKeyFromString(val)
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if err == nil {
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return PublicKeyType
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}
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unhexed, err := hex.DecodeString(val)
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if err == nil {
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switch len(unhexed) {
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case 20:
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return Hash160Type
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case 32:
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return Hash256Type
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case 64:
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return SignatureType
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default:
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return ByteArrayType
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}
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}
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// Anything can be a string.
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return StringType
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}
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// NewParameterFromString returns a new Parameter initialized from the given
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// string in neo-go-specific format. It is intended to be used in user-facing
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// interfaces and has some heuristics in it to simplify parameter passing. Exact
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// syntax is documented in the cli documentation.
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func NewParameterFromString(in string) (*Parameter, error) {
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var (
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char rune
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val string
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err error
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r *strings.Reader
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buf strings.Builder
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escaped bool
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hadType bool
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res = &Parameter{}
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)
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r = strings.NewReader(in)
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for char, _, err = r.ReadRune(); err == nil && char != utf8.RuneError; char, _, err = r.ReadRune() {
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if char == '\\' && !escaped {
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escaped = true
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continue
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}
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if char == ':' && !escaped && !hadType {
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typStr := buf.String()
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res.Type, err = parseParamType(typStr)
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if err != nil {
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return nil, err
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}
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buf.Reset()
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hadType = true
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continue
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}
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escaped = false
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// We don't care about length and it never fails.
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_, _ = buf.WriteRune(char)
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}
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if char == utf8.RuneError {
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return nil, errors.New("bad UTF-8 string")
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}
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// The only other error `ReadRune` returns is io.EOF, which is fine and
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// expected, so we don't check err here.
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val = buf.String()
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if !hadType {
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res.Type = inferParamType(val)
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}
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res.Value, err = adjustValToType(res.Type, val)
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if err != nil {
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return nil, err
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}
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return res, nil
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}
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// ContextItem represents a transaction context item.
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type ContextItem struct {
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Script util.Uint160
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343
pkg/smartcontract/param_context_test.go
Normal file
343
pkg/smartcontract/param_context_test.go
Normal file
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@ -0,0 +1,343 @@
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package smartcontract
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestParseParamType(t *testing.T) {
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var inouts = []struct {
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in string
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out ParamType
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err bool
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}{{
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in: "signature",
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out: SignatureType,
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}, {
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in: "Signature",
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out: SignatureType,
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}, {
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in: "SiGnAtUrE",
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out: SignatureType,
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}, {
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in: "bool",
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out: BoolType,
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}, {
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in: "int",
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out: IntegerType,
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}, {
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in: "hash160",
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out: Hash160Type,
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}, {
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in: "hash256",
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out: Hash256Type,
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}, {
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in: "bytes",
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out: ByteArrayType,
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}, {
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in: "key",
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out: PublicKeyType,
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}, {
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in: "string",
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out: StringType,
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}, {
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in: "array",
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err: true,
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}, {
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in: "qwerty",
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err: true,
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}}
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for _, inout := range inouts {
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out, err := parseParamType(inout.in)
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if inout.err {
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assert.NotNil(t, err, "should error on '%s' input", inout.in)
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} else {
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assert.Nil(t, err, "shouldn't error on '%s' input", inout.in)
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assert.Equal(t, inout.out, out, "bad output for '%s' input", inout.in)
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}
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}
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}
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func TestInferParamType(t *testing.T) {
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var inouts = []struct {
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in string
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out ParamType
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}{{
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in: "42",
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out: IntegerType,
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}, {
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in: "-42",
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out: IntegerType,
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}, {
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in: "0",
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out: IntegerType,
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}, {
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in: "2e10",
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out: ByteArrayType,
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}, {
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in: "true",
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out: BoolType,
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}, {
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in: "false",
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out: BoolType,
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}, {
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in: "truee",
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out: StringType,
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}, {
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in: "AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y",
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out: Hash160Type,
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}, {
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in: "ZK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y",
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out: StringType,
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}, {
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in: "50befd26fdf6e4d957c11e078b24ebce6291456f",
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out: Hash160Type,
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}, {
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in: "03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c",
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out: PublicKeyType,
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}, {
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in: "30b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c",
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out: ByteArrayType,
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}, {
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in: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
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out: Hash256Type,
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}, {
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in: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7da",
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out: ByteArrayType,
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}, {
|
||||
in: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7c56f33fc6ecfcd0c225c4ab356fee59390af8560be0e930faebe74a6daff7c9b",
|
||||
out: SignatureType,
|
||||
}, {
|
||||
in: "qwerty",
|
||||
out: StringType,
|
||||
}, {
|
||||
in: "ab",
|
||||
out: ByteArrayType,
|
||||
}, {
|
||||
in: "az",
|
||||
out: StringType,
|
||||
}, {
|
||||
in: "bad",
|
||||
out: StringType,
|
||||
}, {
|
||||
in: "фыва",
|
||||
out: StringType,
|
||||
}, {
|
||||
in: "dead",
|
||||
out: ByteArrayType,
|
||||
}}
|
||||
for _, inout := range inouts {
|
||||
out := inferParamType(inout.in)
|
||||
assert.Equal(t, inout.out, out, "bad output for '%s' input", inout.in)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAdjustValToType(t *testing.T) {
|
||||
var inouts = []struct {
|
||||
typ ParamType
|
||||
val string
|
||||
out interface{}
|
||||
err bool
|
||||
}{{
|
||||
typ: SignatureType,
|
||||
val: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7c56f33fc6ecfcd0c225c4ab356fee59390af8560be0e930faebe74a6daff7c9b",
|
||||
out: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7c56f33fc6ecfcd0c225c4ab356fee59390af8560be0e930faebe74a6daff7c9b",
|
||||
}, {
|
||||
typ: SignatureType,
|
||||
val: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7c56f33fc6ecfcd0c225c4ab356fee59390af8560be0e930faebe74a6daff7c",
|
||||
err: true,
|
||||
}, {
|
||||
typ: SignatureType,
|
||||
val: "qwerty",
|
||||
err: true,
|
||||
}, {
|
||||
typ: BoolType,
|
||||
val: "false",
|
||||
out: false,
|
||||
}, {
|
||||
typ: BoolType,
|
||||
val: "true",
|
||||
out: true,
|
||||
}, {
|
||||
typ: BoolType,
|
||||
val: "qwerty",
|
||||
err: true,
|
||||
}, {
|
||||
typ: BoolType,
|
||||
val: "42",
|
||||
err: true,
|
||||
}, {
|
||||
typ: BoolType,
|
||||
val: "0",
|
||||
err: true,
|
||||
}, {
|
||||
typ: IntegerType,
|
||||
val: "0",
|
||||
out: 0,
|
||||
}, {
|
||||
typ: IntegerType,
|
||||
val: "42",
|
||||
out: 42,
|
||||
}, {
|
||||
typ: IntegerType,
|
||||
val: "-42",
|
||||
out: -42,
|
||||
}, {
|
||||
typ: IntegerType,
|
||||
val: "q",
|
||||
err: true,
|
||||
}, {
|
||||
typ: Hash160Type,
|
||||
val: "AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y",
|
||||
out: "23ba2703c53263e8d6e522dc32203339dcd8eee9",
|
||||
}, {
|
||||
typ: Hash160Type,
|
||||
val: "50befd26fdf6e4d957c11e078b24ebce6291456f",
|
||||
out: "50befd26fdf6e4d957c11e078b24ebce6291456f",
|
||||
}, {
|
||||
typ: Hash160Type,
|
||||
val: "befd26fdf6e4d957c11e078b24ebce6291456f",
|
||||
err: true,
|
||||
}, {
|
||||
typ: Hash160Type,
|
||||
val: "q",
|
||||
err: true,
|
||||
}, {
|
||||
typ: Hash256Type,
|
||||
val: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
|
||||
out: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
|
||||
}, {
|
||||
typ: Hash256Type,
|
||||
val: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282d",
|
||||
err: true,
|
||||
}, {
|
||||
typ: Hash256Type,
|
||||
val: "q",
|
||||
err: true,
|
||||
}, {
|
||||
typ: ByteArrayType,
|
||||
val: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282d",
|
||||
out: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282d",
|
||||
}, {
|
||||
typ: ByteArrayType,
|
||||
val: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
|
||||
out: "602c79718b16e442de58778e148d0b1084e3b2dffd5de6b7b16cee7969282de7",
|
||||
}, {
|
||||
typ: ByteArrayType,
|
||||
val: "50befd26fdf6e4d957c11e078b24ebce6291456f",
|
||||
out: "50befd26fdf6e4d957c11e078b24ebce6291456f",
|
||||
}, {
|
||||
typ: ByteArrayType,
|
||||
val: "AK2nJJpJr6o664CWJKi1QRXjqeic2zRp8y",
|
||||
err: true,
|
||||
}, {
|
||||
typ: ByteArrayType,
|
||||
val: "q",
|
||||
err: true,
|
||||
}, {
|
||||
typ: ByteArrayType,
|
||||
val: "ab",
|
||||
out: "ab",
|
||||
}, {
|
||||
typ: PublicKeyType,
|
||||
val: "03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c",
|
||||
out: "03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c",
|
||||
}, {
|
||||
typ: PublicKeyType,
|
||||
val: "01b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c",
|
||||
err: true,
|
||||
}, {
|
||||
typ: PublicKeyType,
|
||||
val: "q",
|
||||
err: true,
|
||||
}, {
|
||||
typ: StringType,
|
||||
val: "q",
|
||||
out: "q",
|
||||
}, {
|
||||
typ: StringType,
|
||||
val: "dead",
|
||||
out: "dead",
|
||||
}, {
|
||||
typ: StringType,
|
||||
val: "йцукен",
|
||||
out: "йцукен",
|
||||
}, {
|
||||
typ: ArrayType,
|
||||
val: "",
|
||||
err: true,
|
||||
}}
|
||||
|
||||
for _, inout := range inouts {
|
||||
out, err := adjustValToType(inout.typ, inout.val)
|
||||
if inout.err {
|
||||
assert.NotNil(t, err, "should error on '%s/%s' input", inout.typ, inout.val)
|
||||
} else {
|
||||
assert.Nil(t, err, "shouldn't error on '%s/%s' input", inout.typ, inout.val)
|
||||
assert.Equal(t, inout.out, out, "bad output for '%s/%s' input", inout.typ, inout.val)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewParameterFromString(t *testing.T) {
|
||||
var inouts = []struct {
|
||||
in string
|
||||
out Parameter
|
||||
err bool
|
||||
}{{
|
||||
in: "qwerty",
|
||||
out: Parameter{StringType, "qwerty"},
|
||||
}, {
|
||||
in: "42",
|
||||
out: Parameter{IntegerType, 42},
|
||||
}, {
|
||||
in: "Hello, 世界",
|
||||
out: Parameter{StringType, "Hello, 世界"},
|
||||
}, {
|
||||
in: `\4\2`,
|
||||
out: Parameter{IntegerType, 42},
|
||||
}, {
|
||||
in: `\\4\2`,
|
||||
out: Parameter{StringType, `\42`},
|
||||
}, {
|
||||
in: `\\\4\2`,
|
||||
out: Parameter{StringType, `\42`},
|
||||
}, {
|
||||
in: "int:42",
|
||||
out: Parameter{IntegerType, 42},
|
||||
}, {
|
||||
in: "true",
|
||||
out: Parameter{BoolType, true},
|
||||
}, {
|
||||
in: "string:true",
|
||||
out: Parameter{StringType, "true"},
|
||||
}, {
|
||||
in: "\xfe\xff",
|
||||
err: true,
|
||||
}, {
|
||||
in: `string\:true`,
|
||||
out: Parameter{StringType, "string:true"},
|
||||
}, {
|
||||
in: "string:true:true",
|
||||
out: Parameter{StringType, "true:true"},
|
||||
}, {
|
||||
in: `string\\:true`,
|
||||
err: true,
|
||||
}, {
|
||||
in: `qwerty:asdf`,
|
||||
err: true,
|
||||
}, {
|
||||
in: `bool:asdf`,
|
||||
err: true,
|
||||
}}
|
||||
for _, inout := range inouts {
|
||||
out, err := NewParameterFromString(inout.in)
|
||||
if inout.err {
|
||||
assert.NotNil(t, err, "should error on '%s' input", inout.in)
|
||||
} else {
|
||||
assert.Nil(t, err, "shouldn't error on '%s' input", inout.in)
|
||||
assert.Equal(t, inout.out, *out, "bad output for '%s' input", inout.in)
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue