forked from mirror/go-ethereum
signer, clef: implement EIP191/712 (#17789)
* Named functions and defined a basic EIP191 content type list
* Written basic content type functions
* Added ecRecover method in the clef api
* Updated the extapi changelog and addded indications in the README
* Changed the version of the external API
* Added tests for 0x45
* Implementing UnmarshalJSON() for TypedData
* Working on TypedData
* Solved the auditlog issue
* Changed method to signTypedData
* Changed mimes and implemented the 'encodeType' function for EIP-712
* Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible
* Drafted recursive encodeData
* Ran goimports and gofmt
* Drafted first version of EIP-712, including tests
* Temporarily switched to using common.Address in tests
* Drafted text/validator and and rewritten []byte as hexutil.Bytes
* Solved stringified address encoding issue
* Changed the property type required by signData from bytes to interface{}
* Fixed bugs in 'data/typed' signs
* Brought legal warning back after temporarily disabling it for development
* Added example RPC calls for account_signData and account_signTypedData
* Named functions and defined a basic EIP191 content type list
* Written basic content type functions
* Added ecRecover method in the clef api
* Updated the extapi changelog and addded indications in the README
* Added tests for 0x45
* Implementing UnmarshalJSON() for TypedData
* Working on TypedData
* Solved the auditlog issue
* Changed method to signTypedData
* Changed mimes and implemented the 'encodeType' function for EIP-712
* Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible
* Drafted recursive encodeData
* Ran goimports and gofmt
* Drafted first version of EIP-712, including tests
* Temporarily switched to using common.Address in tests
* Drafted text/validator and and rewritten []byte as hexutil.Bytes
* Solved stringified address encoding issue
* Changed the property type required by signData from bytes to interface{}
* Fixed bugs in 'data/typed' signs
* Brought legal warning back after temporarily disabling it for development
* Added example RPC calls for account_signData and account_signTypedData
* Polished and fixed PR
* Polished and fixed PR
* Solved malformed data panics and also wrote tests
* Solved malformed data panics and also wrote tests
* Added alphabetical sorting to type dependencies
* Added alphabetical sorting to type dependencies
* Added pretty print to data/typed UI
* Added pretty print to data/typed UI
* signer: more tests for typed data
* signer: more tests for typed data
* Fixed TestMalformedData4 errors and renamed IsValid to Validate
* Fixed TestMalformedData4 errors and renamed IsValid to Validate
* Fixed more new failing tests and deanonymised some functions
* Fixed more new failing tests and deanonymised some functions
* Added types to EIP712 output in cliui
* Added types to EIP712 output in cliui
* Fixed regexp issues
* Fixed regexp issues
* Added pseudo-failing test
* Added pseudo-failing test
* Fixed false positive test
* Fixed false positive test
* Added PrettyPrint method
* Added PrettyPrint method
* signer: refactor formatting and UI
* signer: make ui use new message format for signing
* Fixed breaking changes
* Fixed rules_test failing test
* Added extra regexp for reference types
* signer: more hard types
* Fixed failing test, formatted files
* signer: use golang/x keccak
* Fixed goimports error
* clef, signer: address some review concerns
* Implemented latest recommendations
* Fixed comments and uintint256 issue
* accounts, signer: fix mimetypes, add interface to sign data with passphrase
* signer, accounts: remove duplicated code, pass hash preimages to signing
* signer: prevent panic in type assertions, make cliui print rawdata as quotable-safe
* signer: linter fixes, remove deprecated crypto dependency
* accounts: fix goimport
ChrisChinchilla-patch-3
Paul Berg
6 years ago
committed by
Martin Holst Swende
parent
7c60d0a6a2
commit
572baae10a
@ -0,0 +1,899 @@ |
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// Copyright 2018 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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//
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// go-ethereum 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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//
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package core |
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import ( |
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"bytes" |
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"context" |
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"errors" |
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"fmt" |
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"math/big" |
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"mime" |
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"regexp" |
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"sort" |
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"strconv" |
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"strings" |
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"unicode" |
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"github.com/ethereum/go-ethereum/accounts" |
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"github.com/ethereum/go-ethereum/accounts/abi" |
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"github.com/ethereum/go-ethereum/common" |
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"github.com/ethereum/go-ethereum/common/hexutil" |
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"github.com/ethereum/go-ethereum/common/math" |
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"github.com/ethereum/go-ethereum/consensus/clique" |
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"github.com/ethereum/go-ethereum/core/types" |
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"github.com/ethereum/go-ethereum/crypto" |
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"github.com/ethereum/go-ethereum/rlp" |
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) |
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type SigFormat struct { |
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Mime string |
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ByteVersion byte |
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} |
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var ( |
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TextValidator = SigFormat{ |
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accounts.MimetypeTextWithValidator, |
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0x00, |
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} |
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DataTyped = SigFormat{ |
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accounts.MimetypeTypedData, |
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0x01, |
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} |
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ApplicationClique = SigFormat{ |
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accounts.MimetypeClique, |
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0x02, |
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} |
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TextPlain = SigFormat{ |
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accounts.MimetypeTextPlain, |
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0x45, |
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} |
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) |
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type ValidatorData struct { |
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Address common.Address |
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Message hexutil.Bytes |
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} |
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type TypedData struct { |
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Types Types `json:"types"` |
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PrimaryType string `json:"primaryType"` |
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Domain TypedDataDomain `json:"domain"` |
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Message TypedDataMessage `json:"message"` |
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} |
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type Type struct { |
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Name string `json:"name"` |
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Type string `json:"type"` |
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} |
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func (t *Type) isArray() bool { |
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return strings.HasSuffix(t.Type, "[]") |
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} |
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// typeName returns the canonical name of the type. If the type is 'Person[]', then
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// this method returns 'Person'
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func (t *Type) typeName() string { |
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if strings.HasSuffix(t.Type, "[]") { |
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return strings.TrimSuffix(t.Type, "[]") |
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} |
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return t.Type |
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} |
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func (t *Type) isReferenceType() bool { |
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// Reference types must have a leading uppercase characer
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return unicode.IsUpper([]rune(t.Type)[0]) |
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} |
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type Types map[string][]Type |
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type TypePriority struct { |
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Type string |
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Value uint |
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} |
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type TypedDataMessage = map[string]interface{} |
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type TypedDataDomain struct { |
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Name string `json:"name"` |
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Version string `json:"version"` |
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ChainId *big.Int `json:"chainId"` |
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VerifyingContract string `json:"verifyingContract"` |
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Salt string `json:"salt"` |
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} |
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var typedDataReferenceTypeRegexp = regexp.MustCompile(`^[A-Z](\w*)(\[\])?$`) |
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// sign receives a request and produces a signature
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// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
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// where the V value will be 27 or 28 for legacy reasons.
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func (api *SignerAPI) sign(addr common.MixedcaseAddress, req *SignDataRequest) (hexutil.Bytes, error) { |
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// We make the request prior to looking up if we actually have the account, to prevent
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// account-enumeration via the API
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res, err := api.UI.ApproveSignData(req) |
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if err != nil { |
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return nil, err |
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} |
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if !res.Approved { |
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return nil, ErrRequestDenied |
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} |
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// Look up the wallet containing the requested signer
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account := accounts.Account{Address: addr.Address()} |
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wallet, err := api.am.Find(account) |
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if err != nil { |
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return nil, err |
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} |
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// Sign the data with the wallet
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signature, err := wallet.SignDataWithPassphrase(account, res.Password, req.ContentType, req.Hash) |
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if err != nil { |
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return nil, err |
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} |
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signature[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
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return signature, nil |
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} |
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// SignData signs the hash of the provided data, but does so differently
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// depending on the content-type specified.
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//
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// Different types of validation occur.
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func (api *SignerAPI) SignData(ctx context.Context, contentType string, addr common.MixedcaseAddress, data interface{}) (hexutil.Bytes, error) { |
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var req, err = api.determineSignatureFormat(ctx, contentType, addr, data) |
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if err != nil { |
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return nil, err |
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} |
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signature, err := api.sign(addr, req) |
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if err != nil { |
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api.UI.ShowError(err.Error()) |
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return nil, err |
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} |
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return signature, nil |
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} |
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// determineSignatureFormat determines which signature method should be used based upon the mime type
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// In the cases where it matters ensure that the charset is handled. The charset
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// resides in the 'params' returned as the second returnvalue from mime.ParseMediaType
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// charset, ok := params["charset"]
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// As it is now, we accept any charset and just treat it as 'raw'.
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// This method returns the mimetype for signing along with the request
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func (api *SignerAPI) determineSignatureFormat(ctx context.Context, contentType string, addr common.MixedcaseAddress, data interface{}) (*SignDataRequest, error) { |
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var req *SignDataRequest |
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mediaType, _, err := mime.ParseMediaType(contentType) |
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if err != nil { |
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return nil, err |
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} |
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switch mediaType { |
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case TextValidator.Mime: |
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// Data with an intended validator
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validatorData, err := UnmarshalValidatorData(data) |
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if err != nil { |
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return nil, err |
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} |
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sighash, msg := SignTextValidator(validatorData) |
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message := []*NameValueType{ |
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{ |
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Name: "message", |
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Typ: "text", |
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Value: msg, |
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}, |
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} |
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req = &SignDataRequest{ContentType: mediaType, Rawdata: []byte(msg), Message: message, Hash: sighash} |
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case ApplicationClique.Mime: |
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// Clique is the Ethereum PoA standard
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stringData, ok := data.(string) |
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if !ok { |
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return nil, fmt.Errorf("input for %v plain must be an hex-encoded string", ApplicationClique.Mime) |
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} |
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cliqueData, err := hexutil.Decode(stringData) |
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if err != nil { |
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return nil, err |
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} |
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header := &types.Header{} |
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if err := rlp.DecodeBytes(cliqueData, header); err != nil { |
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return nil, err |
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} |
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// Get back the rlp data, encoded by us
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cliqueData = clique.CliqueRLP(header) |
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sighash, err := SignCliqueHeader(header) |
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if err != nil { |
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return nil, err |
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} |
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message := []*NameValueType{ |
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{ |
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Name: "Clique block", |
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Typ: "clique", |
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Value: fmt.Sprintf("clique block %d [0x%x]", header.Number, header.Hash()), |
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}, |
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} |
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req = &SignDataRequest{ContentType: mediaType, Rawdata: cliqueData, Message: message, Hash: sighash} |
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default: // also case TextPlain.Mime:
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// Calculates an Ethereum ECDSA signature for:
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// hash = keccak256("\x19${byteVersion}Ethereum Signed Message:\n${message length}${message}")
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// We expect it to be a string
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stringData, ok := data.(string) |
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if !ok { |
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return nil, fmt.Errorf("input for text/plain must be a string") |
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} |
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//plainData, err := hexutil.Decode(stringdata)
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//if err != nil {
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// return nil, err
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//}
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sighash, msg := accounts.TextAndHash([]byte(stringData)) |
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message := []*NameValueType{ |
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{ |
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Name: "message", |
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Typ: "text/plain", |
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Value: msg, |
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}, |
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} |
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req = &SignDataRequest{ContentType: mediaType, Rawdata: []byte(msg), Message: message, Hash: sighash} |
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} |
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req.Address = addr |
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req.Meta = MetadataFromContext(ctx) |
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return req, nil |
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} |
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// SignTextWithValidator signs the given message which can be further recovered
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// with the given validator.
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// hash = keccak256("\x19\x00"${address}${data}).
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func SignTextValidator(validatorData ValidatorData) (hexutil.Bytes, string) { |
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msg := fmt.Sprintf("\x19\x00%s%s", string(validatorData.Address.Bytes()), string(validatorData.Message)) |
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fmt.Printf("SignTextValidator:%s\n", msg) |
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return crypto.Keccak256([]byte(msg)), msg |
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} |
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// SignCliqueHeader returns the hash which is used as input for the proof-of-authority
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// signing. It is the hash of the entire header apart from the 65 byte signature
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// contained at the end of the extra data.
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//
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// The method requires the extra data to be at least 65 bytes -- the original implementation
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// in clique.go panics if this is the case, thus it's been reimplemented here to avoid the panic
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// and simply return an error instead
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func SignCliqueHeader(header *types.Header) (hexutil.Bytes, error) { |
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//hash := common.Hash{}
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if len(header.Extra) < 65 { |
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return nil, fmt.Errorf("clique header extradata too short, %d < 65", len(header.Extra)) |
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} |
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hash := clique.SealHash(header) |
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return hash.Bytes(), nil |
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} |
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// SignTypedData signs EIP-712 conformant typed data
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// hash = keccak256("\x19${byteVersion}${domainSeparator}${hashStruct(message)}")
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func (api *SignerAPI) SignTypedData(ctx context.Context, addr common.MixedcaseAddress, typedData TypedData) (hexutil.Bytes, error) { |
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domainSeparator, err := typedData.HashStruct("EIP712Domain", typedData.Domain.Map()) |
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if err != nil { |
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return nil, err |
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} |
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typedDataHash, err := typedData.HashStruct(typedData.PrimaryType, typedData.Message) |
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if err != nil { |
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return nil, err |
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} |
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rawData := []byte(fmt.Sprintf("\x19\x01%s%s", string(domainSeparator), string(typedDataHash))) |
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sighash := crypto.Keccak256(rawData) |
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message := typedData.Format() |
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req := &SignDataRequest{ContentType: DataTyped.Mime, Rawdata: rawData, Message: message, Hash: sighash} |
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signature, err := api.sign(addr, req) |
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if err != nil { |
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api.UI.ShowError(err.Error()) |
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return nil, err |
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} |
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return signature, nil |
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} |
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// HashStruct generates a keccak256 hash of the encoding of the provided data
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func (typedData *TypedData) HashStruct(primaryType string, data TypedDataMessage) (hexutil.Bytes, error) { |
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encodedData, err := typedData.EncodeData(primaryType, data, 1) |
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if err != nil { |
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return nil, err |
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} |
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return crypto.Keccak256(encodedData), nil |
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} |
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// Dependencies returns an array of custom types ordered by their hierarchical reference tree
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func (typedData *TypedData) Dependencies(primaryType string, found []string) []string { |
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includes := func(arr []string, str string) bool { |
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for _, obj := range arr { |
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if obj == str { |
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return true |
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} |
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} |
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return false |
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} |
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if includes(found, primaryType) { |
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return found |
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} |
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if typedData.Types[primaryType] == nil { |
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return found |
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} |
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found = append(found, primaryType) |
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for _, field := range typedData.Types[primaryType] { |
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for _, dep := range typedData.Dependencies(field.Type, found) { |
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if !includes(found, dep) { |
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found = append(found, dep) |
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} |
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} |
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} |
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return found |
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} |
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// EncodeType generates the following encoding:
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// `name ‖ "(" ‖ member₁ ‖ "," ‖ member₂ ‖ "," ‖ … ‖ memberₙ ")"`
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//
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// each member is written as `type ‖ " " ‖ name` encodings cascade down and are sorted by name
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func (typedData *TypedData) EncodeType(primaryType string) hexutil.Bytes { |
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// Get dependencies primary first, then alphabetical
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deps := typedData.Dependencies(primaryType, []string{}) |
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slicedDeps := deps[1:] |
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sort.Strings(slicedDeps) |
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deps = append([]string{primaryType}, slicedDeps...) |
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// Format as a string with fields
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var buffer bytes.Buffer |
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for _, dep := range deps { |
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buffer.WriteString(dep) |
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buffer.WriteString("(") |
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for _, obj := range typedData.Types[dep] { |
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buffer.WriteString(obj.Type) |
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buffer.WriteString(" ") |
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buffer.WriteString(obj.Name) |
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buffer.WriteString(",") |
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} |
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buffer.Truncate(buffer.Len() - 1) |
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buffer.WriteString(")") |
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} |
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return buffer.Bytes() |
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} |
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// TypeHash creates the keccak256 hash of the data
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func (typedData *TypedData) TypeHash(primaryType string) hexutil.Bytes { |
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return crypto.Keccak256(typedData.EncodeType(primaryType)) |
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} |
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|
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// EncodeData generates the following encoding:
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// `enc(value₁) ‖ enc(value₂) ‖ … ‖ enc(valueₙ)`
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//
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// each encoded member is 32-byte long
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func (typedData *TypedData) EncodeData(primaryType string, data map[string]interface{}, depth int) (hexutil.Bytes, error) { |
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if err := typedData.validate(); err != nil { |
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return nil, err |
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} |
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|
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buffer := bytes.Buffer{} |
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|
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// Verify extra data
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if len(typedData.Types[primaryType]) < len(data) { |
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return nil, errors.New("there is extra data provided in the message") |
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} |
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|
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// Add typehash
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buffer.Write(typedData.TypeHash(primaryType)) |
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|
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// Add field contents. Structs and arrays have special handlers.
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for _, field := range typedData.Types[primaryType] { |
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encType := field.Type |
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encValue := data[field.Name] |
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if encType[len(encType)-1:] == "]" { |
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arrayValue, ok := encValue.([]interface{}) |
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if !ok { |
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return nil, dataMismatchError(encType, encValue) |
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} |
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|
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arrayBuffer := bytes.Buffer{} |
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parsedType := strings.Split(encType, "[")[0] |
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for _, item := range arrayValue { |
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if typedData.Types[parsedType] != nil { |
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mapValue, ok := item.(map[string]interface{}) |
||||
if !ok { |
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return nil, dataMismatchError(parsedType, item) |
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} |
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encodedData, err := typedData.EncodeData(parsedType, mapValue, depth+1) |
||||
if err != nil { |
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return nil, err |
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} |
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arrayBuffer.Write(encodedData) |
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} else { |
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bytesValue, err := typedData.EncodePrimitiveValue(parsedType, item, depth) |
||||
if err != nil { |
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return nil, err |
||||
} |
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arrayBuffer.Write(bytesValue) |
||||
} |
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} |
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|
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buffer.Write(crypto.Keccak256(arrayBuffer.Bytes())) |
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} else if typedData.Types[field.Type] != nil { |
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mapValue, ok := encValue.(map[string]interface{}) |
||||
if !ok { |
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return nil, dataMismatchError(encType, encValue) |
||||
} |
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encodedData, err := typedData.EncodeData(field.Type, mapValue, depth+1) |
||||
if err != nil { |
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return nil, err |
||||
} |
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buffer.Write(crypto.Keccak256(encodedData)) |
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} else { |
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byteValue, err := typedData.EncodePrimitiveValue(encType, encValue, depth) |
||||
if err != nil { |
||||
return nil, err |
||||
} |
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buffer.Write(byteValue) |
||||
} |
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} |
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return buffer.Bytes(), nil |
||||
} |
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|
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// EncodePrimitiveValue deals with the primitive values found
|
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// while searching through the typed data
|
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func (typedData *TypedData) EncodePrimitiveValue(encType string, encValue interface{}, depth int) ([]byte, error) { |
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|
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switch encType { |
||||
case "address": |
||||
stringValue, ok := encValue.(string) |
||||
if !ok || !common.IsHexAddress(stringValue) { |
||||
return nil, dataMismatchError(encType, encValue) |
||||
} |
||||
retval := make([]byte, 32) |
||||
copy(retval[12:], common.HexToAddress(stringValue).Bytes()) |
||||
return retval, nil |
||||
case "bool": |
||||
boolValue, ok := encValue.(bool) |
||||
if !ok { |
||||
return nil, dataMismatchError(encType, encValue) |
||||
} |
||||
if boolValue { |
||||
return math.PaddedBigBytes(common.Big1, 32), nil |
||||
} |
||||
return math.PaddedBigBytes(common.Big0, 32), nil |
||||
case "string": |
||||
strVal, ok := encValue.(string) |
||||
if !ok { |
||||
return nil, dataMismatchError(encType, encValue) |
||||
} |
||||
return crypto.Keccak256([]byte(strVal)), nil |
||||
case "bytes": |
||||
bytesValue, ok := encValue.([]byte) |
||||
if !ok { |
||||
return nil, dataMismatchError(encType, encValue) |
||||
} |
||||
return crypto.Keccak256(bytesValue), nil |
||||
} |
||||
if strings.HasPrefix(encType, "bytes") { |
||||
lengthStr := strings.TrimPrefix(encType, "bytes") |
||||
length, err := strconv.Atoi(lengthStr) |
||||
if err != nil { |
||||
return nil, fmt.Errorf("invalid size on bytes: %v", lengthStr) |
||||
} |
||||
if length < 0 || length > 32 { |
||||
return nil, fmt.Errorf("invalid size on bytes: %d", length) |
||||
} |
||||
if byteValue, ok := encValue.(hexutil.Bytes); !ok { |
||||
return nil, dataMismatchError(encType, encValue) |
||||
} else { |
||||
return math.PaddedBigBytes(new(big.Int).SetBytes(byteValue), 32), nil |
||||
} |
||||
} |
||||
if strings.HasPrefix(encType, "int") || strings.HasPrefix(encType, "uint") { |
||||
length := 0 |
||||
if encType == "int" || encType == "uint" { |
||||
length = 256 |
||||
} else { |
||||
lengthStr := "" |
||||
if strings.HasPrefix(encType, "uint") { |
||||
lengthStr = strings.TrimPrefix(encType, "uint") |
||||
} else { |
||||
lengthStr = strings.TrimPrefix(encType, "int") |
||||
} |
||||
atoiSize, err := strconv.Atoi(lengthStr) |
||||
if err != nil { |
||||
return nil, fmt.Errorf("invalid size on integer: %v", lengthStr) |
||||
} |
||||
length = atoiSize |
||||
} |
||||
bigIntValue, ok := encValue.(*big.Int) |
||||
if bigIntValue.BitLen() > length { |
||||
return nil, fmt.Errorf("integer larger than '%v'", encType) |
||||
} |
||||
if !ok { |
||||
return nil, dataMismatchError(encType, encValue) |
||||
} |
||||
return abi.U256(bigIntValue), nil |
||||
} |
||||
return nil, fmt.Errorf("unrecognized type '%s'", encType) |
||||
|
||||
} |
||||
|
||||
// dataMismatchError generates an error for a mismatch between
|
||||
// the provided type and data
|
||||
func dataMismatchError(encType string, encValue interface{}) error { |
||||
return fmt.Errorf("provided data '%v' doesn't match type '%s'", encValue, encType) |
||||
} |
||||
|
||||
// EcRecover recovers the address associated with the given sig.
|
||||
// Only compatible with `text/plain`
|
||||
func (api *SignerAPI) EcRecover(ctx context.Context, data hexutil.Bytes, sig hexutil.Bytes) (common.Address, error) { |
||||
// Returns the address for the Account that was used to create the signature.
|
||||
//
|
||||
// Note, this function is compatible with eth_sign and personal_sign. As such it recovers
|
||||
// the address of:
|
||||
// hash = keccak256("\x19${byteVersion}Ethereum Signed Message:\n${message length}${message}")
|
||||
// addr = ecrecover(hash, signature)
|
||||
//
|
||||
// Note, the signature must conform to the secp256k1 curve R, S and V values, where
|
||||
// the V value must be be 27 or 28 for legacy reasons.
|
||||
//
|
||||
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecover
|
||||
if len(sig) != 65 { |
||||
return common.Address{}, fmt.Errorf("signature must be 65 bytes long") |
||||
} |
||||
if sig[64] != 27 && sig[64] != 28 { |
||||
return common.Address{}, fmt.Errorf("invalid Ethereum signature (V is not 27 or 28)") |
||||
} |
||||
sig[64] -= 27 // Transform yellow paper V from 27/28 to 0/1
|
||||
hash := accounts.TextHash(data) |
||||
rpk, err := crypto.SigToPub(hash, sig) |
||||
if err != nil { |
||||
return common.Address{}, err |
||||
} |
||||
return crypto.PubkeyToAddress(*rpk), nil |
||||
} |
||||
|
||||
// UnmarshalValidatorData converts the bytes input to typed data
|
||||
func UnmarshalValidatorData(data interface{}) (ValidatorData, error) { |
||||
raw, ok := data.(map[string]interface{}) |
||||
if !ok { |
||||
return ValidatorData{}, errors.New("validator input is not a map[string]interface{}") |
||||
} |
||||
addr, ok := raw["address"].(string) |
||||
if !ok { |
||||
return ValidatorData{}, errors.New("validator address is not sent as a string") |
||||
} |
||||
addrBytes, err := hexutil.Decode(addr) |
||||
if err != nil { |
||||
return ValidatorData{}, err |
||||
} |
||||
if !ok || len(addrBytes) == 0 { |
||||
return ValidatorData{}, errors.New("validator address is undefined") |
||||
} |
||||
|
||||
message, ok := raw["message"].(string) |
||||
if !ok { |
||||
return ValidatorData{}, errors.New("message is not sent as a string") |
||||
} |
||||
messageBytes, err := hexutil.Decode(message) |
||||
if err != nil { |
||||
return ValidatorData{}, err |
||||
} |
||||
if !ok || len(messageBytes) == 0 { |
||||
return ValidatorData{}, errors.New("message is undefined") |
||||
} |
||||
|
||||
return ValidatorData{ |
||||
Address: common.BytesToAddress(addrBytes), |
||||
Message: messageBytes, |
||||
}, nil |
||||
} |
||||
|
||||
// validate makes sure the types are sound
|
||||
func (typedData *TypedData) validate() error { |
||||
if err := typedData.Types.validate(); err != nil { |
||||
return err |
||||
} |
||||
if err := typedData.Domain.validate(); err != nil { |
||||
return err |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
// Map generates a map version of the typed data
|
||||
func (typedData *TypedData) Map() map[string]interface{} { |
||||
dataMap := map[string]interface{}{ |
||||
"types": typedData.Types, |
||||
"domain": typedData.Domain.Map(), |
||||
"primaryType": typedData.PrimaryType, |
||||
"message": typedData.Message, |
||||
} |
||||
return dataMap |
||||
} |
||||
|
||||
// PrettyPrint generates a nice output to help the users
|
||||
// of clef present data in their apps
|
||||
func (typedData *TypedData) PrettyPrint() string { |
||||
output := bytes.Buffer{} |
||||
formatted := typedData.Format() |
||||
for _, item := range formatted { |
||||
output.WriteString(fmt.Sprintf("%v\n", item.Pprint(0))) |
||||
} |
||||
return output.String() |
||||
} |
||||
|
||||
// Format returns a representation of typedData, which can be easily displayed by a user-interface
|
||||
// without in-depth knowledge about 712 rules
|
||||
func (typedData *TypedData) Format() []*NameValueType { |
||||
var nvts []*NameValueType |
||||
nvts = append(nvts, &NameValueType{ |
||||
Name: "EIP712Domain", |
||||
Value: typedData.formatData("EIP712Domain", typedData.Domain.Map()), |
||||
Typ: "domain", |
||||
}) |
||||
nvts = append(nvts, &NameValueType{ |
||||
Name: typedData.PrimaryType, |
||||
Value: typedData.formatData(typedData.PrimaryType, typedData.Message), |
||||
Typ: "primary type", |
||||
}) |
||||
return nvts |
||||
} |
||||
|
||||
func (typedData *TypedData) formatData(primaryType string, data map[string]interface{}) []*NameValueType { |
||||
var output []*NameValueType |
||||
|
||||
// Add field contents. Structs and arrays have special handlers.
|
||||
for _, field := range typedData.Types[primaryType] { |
||||
encName := field.Name |
||||
encValue := data[encName] |
||||
item := &NameValueType{ |
||||
Name: encName, |
||||
Typ: field.Type, |
||||
} |
||||
if field.isArray() { |
||||
arrayValue, _ := encValue.([]interface{}) |
||||
parsedType := field.typeName() |
||||
for _, v := range arrayValue { |
||||
if typedData.Types[parsedType] != nil { |
||||
mapValue, _ := v.(map[string]interface{}) |
||||
mapOutput := typedData.formatData(parsedType, mapValue) |
||||
item.Value = mapOutput |
||||
} else { |
||||
primitiveOutput := formatPrimitiveValue(field.Type, encValue) |
||||
item.Value = primitiveOutput |
||||
} |
||||
} |
||||
} else if typedData.Types[field.Type] != nil { |
||||
mapValue, _ := encValue.(map[string]interface{}) |
||||
mapOutput := typedData.formatData(field.Type, mapValue) |
||||
item.Value = mapOutput |
||||
} else { |
||||
primitiveOutput := formatPrimitiveValue(field.Type, encValue) |
||||
item.Value = primitiveOutput |
||||
} |
||||
output = append(output, item) |
||||
} |
||||
return output |
||||
} |
||||
|
||||
func formatPrimitiveValue(encType string, encValue interface{}) string { |
||||
switch encType { |
||||
case "address": |
||||
stringValue, _ := encValue.(string) |
||||
return common.HexToAddress(stringValue).String() |
||||
case "bool": |
||||
boolValue, _ := encValue.(bool) |
||||
return fmt.Sprintf("%t", boolValue) |
||||
case "bytes", "string": |
||||
return fmt.Sprintf("%s", encValue) |
||||
} |
||||
if strings.HasPrefix(encType, "bytes") { |
||||
return fmt.Sprintf("%s", encValue) |
||||
} else if strings.HasPrefix(encType, "uint") || strings.HasPrefix(encType, "int") { |
||||
bigIntValue, _ := encValue.(*big.Int) |
||||
return fmt.Sprintf("%d (0x%x)", bigIntValue, bigIntValue) |
||||
} |
||||
return "NA" |
||||
} |
||||
|
||||
// NameValueType is a very simple struct with Name, Value and Type. It's meant for simple
|
||||
// json structures used to communicate signing-info about typed data with the UI
|
||||
type NameValueType struct { |
||||
Name string `json:"name"` |
||||
Value interface{} `json:"value"` |
||||
Typ string `json:"type"` |
||||
} |
||||
|
||||
// Pprint returns a pretty-printed version of nvt
|
||||
func (nvt *NameValueType) Pprint(depth int) string { |
||||
output := bytes.Buffer{} |
||||
output.WriteString(strings.Repeat("\u00a0", depth*2)) |
||||
output.WriteString(fmt.Sprintf("%s [%s]: ", nvt.Name, nvt.Typ)) |
||||
if nvts, ok := nvt.Value.([]*NameValueType); ok { |
||||
output.WriteString("\n") |
||||
for _, next := range nvts { |
||||
sublevel := next.Pprint(depth + 1) |
||||
output.WriteString(sublevel) |
||||
} |
||||
} else { |
||||
output.WriteString(fmt.Sprintf("%s\n", nvt.Value)) |
||||
} |
||||
return output.String() |
||||
} |
||||
|
||||
// Validate checks if the types object is conformant to the specs
|
||||
func (t Types) validate() error { |
||||
for typeKey, typeArr := range t { |
||||
for _, typeObj := range typeArr { |
||||
if typeKey == typeObj.Type { |
||||
return fmt.Errorf("type '%s' cannot reference itself", typeObj.Type) |
||||
} |
||||
if typeObj.isReferenceType() { |
||||
if _, exist := t[typeObj.Type]; !exist { |
||||
return fmt.Errorf("reference type '%s' is undefined", typeObj.Type) |
||||
} |
||||
if !typedDataReferenceTypeRegexp.MatchString(typeObj.Type) { |
||||
return fmt.Errorf("unknown reference type '%s", typeObj.Type) |
||||
} |
||||
} else if !isPrimitiveTypeValid(typeObj.Type) { |
||||
return fmt.Errorf("unknown type '%s'", typeObj.Type) |
||||
} |
||||
} |
||||
} |
||||
return nil |
||||
} |
||||
|
||||
// Checks if the primitive value is valid
|
||||
func isPrimitiveTypeValid(primitiveType string) bool { |
||||
if primitiveType == "address" || |
||||
primitiveType == "address[]" || |
||||
primitiveType == "bool" || |
||||
primitiveType == "bool[]" || |
||||
primitiveType == "string" || |
||||
primitiveType == "string[]" { |
||||
return true |
||||
} |
||||
if primitiveType == "bytes" || |
||||
primitiveType == "bytes[]" || |
||||
primitiveType == "bytes1" || |
||||
primitiveType == "bytes1[]" || |
||||
primitiveType == "bytes2" || |
||||
primitiveType == "bytes2[]" || |
||||
primitiveType == "bytes3" || |
||||
primitiveType == "bytes3[]" || |
||||
primitiveType == "bytes4" || |
||||
primitiveType == "bytes4[]" || |
||||
primitiveType == "bytes5" || |
||||
primitiveType == "bytes5[]" || |
||||
primitiveType == "bytes6" || |
||||
primitiveType == "bytes6[]" || |
||||
primitiveType == "bytes7" || |
||||
primitiveType == "bytes7[]" || |
||||
primitiveType == "bytes8" || |
||||
primitiveType == "bytes8[]" || |
||||
primitiveType == "bytes9" || |
||||
primitiveType == "bytes9[]" || |
||||
primitiveType == "bytes10" || |
||||
primitiveType == "bytes10[]" || |
||||
primitiveType == "bytes11" || |
||||
primitiveType == "bytes11[]" || |
||||
primitiveType == "bytes12" || |
||||
primitiveType == "bytes12[]" || |
||||
primitiveType == "bytes13" || |
||||
primitiveType == "bytes13[]" || |
||||
primitiveType == "bytes14" || |
||||
primitiveType == "bytes14[]" || |
||||
primitiveType == "bytes15" || |
||||
primitiveType == "bytes15[]" || |
||||
primitiveType == "bytes16" || |
||||
primitiveType == "bytes16[]" || |
||||
primitiveType == "bytes17" || |
||||
primitiveType == "bytes17[]" || |
||||
primitiveType == "bytes18" || |
||||
primitiveType == "bytes18[]" || |
||||
primitiveType == "bytes19" || |
||||
primitiveType == "bytes19[]" || |
||||
primitiveType == "bytes20" || |
||||
primitiveType == "bytes20[]" || |
||||
primitiveType == "bytes21" || |
||||
primitiveType == "bytes21[]" || |
||||
primitiveType == "bytes22" || |
||||
primitiveType == "bytes22[]" || |
||||
primitiveType == "bytes23" || |
||||
primitiveType == "bytes23[]" || |
||||
primitiveType == "bytes24" || |
||||
primitiveType == "bytes24[]" || |
||||
primitiveType == "bytes25" || |
||||
primitiveType == "bytes25[]" || |
||||
primitiveType == "bytes26" || |
||||
primitiveType == "bytes26[]" || |
||||
primitiveType == "bytes27" || |
||||
primitiveType == "bytes27[]" || |
||||
primitiveType == "bytes28" || |
||||
primitiveType == "bytes28[]" || |
||||
primitiveType == "bytes29" || |
||||
primitiveType == "bytes29[]" || |
||||
primitiveType == "bytes30" || |
||||
primitiveType == "bytes30[]" || |
||||
primitiveType == "bytes31" || |
||||
primitiveType == "bytes31[]" { |
||||
return true |
||||
} |
||||
if primitiveType == "int" || |
||||
primitiveType == "int[]" || |
||||
primitiveType == "int8" || |
||||
primitiveType == "int8[]" || |
||||
primitiveType == "int16" || |
||||
primitiveType == "int16[]" || |
||||
primitiveType == "int32" || |
||||
primitiveType == "int32[]" || |
||||
primitiveType == "int64" || |
||||
primitiveType == "int64[]" || |
||||
primitiveType == "int128" || |
||||
primitiveType == "int128[]" || |
||||
primitiveType == "int256" || |
||||
primitiveType == "int256[]" { |
||||
return true |
||||
} |
||||
if primitiveType == "uint" || |
||||
primitiveType == "uint[]" || |
||||
primitiveType == "uint8" || |
||||
primitiveType == "uint8[]" || |
||||
primitiveType == "uint16" || |
||||
primitiveType == "uint16[]" || |
||||
primitiveType == "uint32" || |
||||
primitiveType == "uint32[]" || |
||||
primitiveType == "uint64" || |
||||
primitiveType == "uint64[]" || |
||||
primitiveType == "uint128" || |
||||
primitiveType == "uint128[]" || |
||||
primitiveType == "uint256" || |
||||
primitiveType == "uint256[]" { |
||||
return true |
||||
} |
||||
return false |
||||
} |
||||
|
||||
// validate checks if the given domain is valid, i.e. contains at least
|
||||
// the minimum viable keys and values
|
||||
func (domain *TypedDataDomain) validate() error { |
||||
if domain.ChainId == big.NewInt(0) { |
||||
return errors.New("chainId must be specified according to EIP-155") |
||||
} |
||||
|
||||
if len(domain.Name) == 0 && len(domain.Version) == 0 && len(domain.VerifyingContract) == 0 && len(domain.Salt) == 0 { |
||||
return errors.New("domain is undefined") |
||||
} |
||||
|
||||
return nil |
||||
} |
||||
|
||||
// Map is a helper function to generate a map version of the domain
|
||||
func (domain *TypedDataDomain) Map() map[string]interface{} { |
||||
dataMap := map[string]interface{}{ |
||||
"chainId": domain.ChainId, |
||||
} |
||||
|
||||
if len(domain.Name) > 0 { |
||||
dataMap["name"] = domain.Name |
||||
} |
||||
|
||||
if len(domain.Version) > 0 { |
||||
dataMap["version"] = domain.Version |
||||
} |
||||
|
||||
if len(domain.VerifyingContract) > 0 { |
||||
dataMap["verifyingContract"] = domain.VerifyingContract |
||||
} |
||||
|
||||
if len(domain.Salt) > 0 { |
||||
dataMap["salt"] = domain.Salt |
||||
} |
||||
return dataMap |
||||
} |
||||
@ -0,0 +1,774 @@ |
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of go-ethereum.
|
||||
//
|
||||
// go-ethereum is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// go-ethereum is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
package core |
||||
|
||||
import ( |
||||
"context" |
||||
"encoding/json" |
||||
"fmt" |
||||
"math/big" |
||||
"testing" |
||||
|
||||
"github.com/ethereum/go-ethereum/accounts/keystore" |
||||
"github.com/ethereum/go-ethereum/common" |
||||
"github.com/ethereum/go-ethereum/common/hexutil" |
||||
) |
||||
|
||||
var typesStandard = Types{ |
||||
"EIP712Domain": { |
||||
{ |
||||
Name: "name", |
||||
Type: "string", |
||||
}, |
||||
{ |
||||
Name: "version", |
||||
Type: "string", |
||||
}, |
||||
{ |
||||
Name: "chainId", |
||||
Type: "uint256", |
||||
}, |
||||
{ |
||||
Name: "verifyingContract", |
||||
Type: "address", |
||||
}, |
||||
}, |
||||
"Person": { |
||||
{ |
||||
Name: "name", |
||||
Type: "string", |
||||
}, |
||||
{ |
||||
Name: "wallet", |
||||
Type: "address", |
||||
}, |
||||
}, |
||||
"Mail": { |
||||
{ |
||||
Name: "from", |
||||
Type: "Person", |
||||
}, |
||||
{ |
||||
Name: "to", |
||||
Type: "Person", |
||||
}, |
||||
{ |
||||
Name: "contents", |
||||
Type: "string", |
||||
}, |
||||
}, |
||||
} |
||||
|
||||
var jsonTypedData = ` |
||||
{ |
||||
"types": { |
||||
"EIP712Domain": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "version", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "chainId", |
||||
"type": "uint256" |
||||
}, |
||||
{ |
||||
"name": "verifyingContract", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Person": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "test", |
||||
"type": "uint8" |
||||
}, |
||||
{ |
||||
"name": "wallet", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Mail": [ |
||||
{ |
||||
"name": "from", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "to", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "contents", |
||||
"type": "string" |
||||
} |
||||
] |
||||
}, |
||||
"primaryType": "Mail", |
||||
"domain": { |
||||
"name": "Ether Mail", |
||||
"version": "1", |
||||
"chainId": 1, |
||||
"verifyingContract": "0xCCCcccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC" |
||||
}, |
||||
"message": { |
||||
"from": { |
||||
"name": "Cow", |
||||
"test": 3, |
||||
"wallet": "0xcD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826" |
||||
}, |
||||
"to": { |
||||
"name": "Bob", |
||||
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB" |
||||
}, |
||||
"contents": "Hello, Bob!" |
||||
} |
||||
} |
||||
` |
||||
|
||||
const primaryType = "Mail" |
||||
|
||||
var domainStandard = TypedDataDomain{ |
||||
"Ether Mail", |
||||
"1", |
||||
big.NewInt(1), |
||||
"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC", |
||||
"", |
||||
} |
||||
|
||||
var messageStandard = map[string]interface{}{ |
||||
"from": map[string]interface{}{ |
||||
"name": "Cow", |
||||
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826", |
||||
}, |
||||
"to": map[string]interface{}{ |
||||
"name": "Bob", |
||||
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB", |
||||
}, |
||||
"contents": "Hello, Bob!", |
||||
} |
||||
|
||||
var typedData = TypedData{ |
||||
Types: typesStandard, |
||||
PrimaryType: primaryType, |
||||
Domain: domainStandard, |
||||
Message: messageStandard, |
||||
} |
||||
|
||||
func TestSignData(t *testing.T) { |
||||
api, control := setup(t) |
||||
//Create two accounts
|
||||
createAccount(control, api, t) |
||||
createAccount(control, api, t) |
||||
control <- "1" |
||||
list, err := api.List(context.Background()) |
||||
if err != nil { |
||||
t.Fatal(err) |
||||
} |
||||
a := common.NewMixedcaseAddress(list[0]) |
||||
|
||||
control <- "Y" |
||||
control <- "wrongpassword" |
||||
signature, err := api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world"))) |
||||
if signature != nil { |
||||
t.Errorf("Expected nil-data, got %x", signature) |
||||
} |
||||
if err != keystore.ErrDecrypt { |
||||
t.Errorf("Expected ErrLocked! '%v'", err) |
||||
} |
||||
control <- "No way" |
||||
signature, err = api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world"))) |
||||
if signature != nil { |
||||
t.Errorf("Expected nil-data, got %x", signature) |
||||
} |
||||
if err != ErrRequestDenied { |
||||
t.Errorf("Expected ErrRequestDenied! '%v'", err) |
||||
} |
||||
// text/plain
|
||||
control <- "Y" |
||||
control <- "a_long_password" |
||||
signature, err = api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world"))) |
||||
if err != nil { |
||||
t.Fatal(err) |
||||
} |
||||
if signature == nil || len(signature) != 65 { |
||||
t.Errorf("Expected 65 byte signature (got %d bytes)", len(signature)) |
||||
} |
||||
// data/typed
|
||||
control <- "Y" |
||||
control <- "a_long_password" |
||||
signature, err = api.SignTypedData(context.Background(), a, typedData) |
||||
if err != nil { |
||||
t.Fatal(err) |
||||
} |
||||
if signature == nil || len(signature) != 65 { |
||||
t.Errorf("Expected 65 byte signature (got %d bytes)", len(signature)) |
||||
} |
||||
} |
||||
|
||||
func TestHashStruct(t *testing.T) { |
||||
hash, err := typedData.HashStruct(typedData.PrimaryType, typedData.Message) |
||||
if err != nil { |
||||
t.Fatal(err) |
||||
} |
||||
mainHash := fmt.Sprintf("0x%s", common.Bytes2Hex(hash)) |
||||
if mainHash != "0xc52c0ee5d84264471806290a3f2c4cecfc5490626bf912d01f240d7a274b371e" { |
||||
t.Errorf("Expected different hashStruct result (got %s)", mainHash) |
||||
} |
||||
|
||||
hash, err = typedData.HashStruct("EIP712Domain", typedData.Domain.Map()) |
||||
if err != nil { |
||||
t.Error(err) |
||||
} |
||||
domainHash := fmt.Sprintf("0x%s", common.Bytes2Hex(hash)) |
||||
if domainHash != "0xf2cee375fa42b42143804025fc449deafd50cc031ca257e0b194a650a912090f" { |
||||
t.Errorf("Expected different domain hashStruct result (got %s)", domainHash) |
||||
} |
||||
} |
||||
|
||||
func TestEncodeType(t *testing.T) { |
||||
domainTypeEncoding := string(typedData.EncodeType("EIP712Domain")) |
||||
if domainTypeEncoding != "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" { |
||||
t.Errorf("Expected different encodeType result (got %s)", domainTypeEncoding) |
||||
} |
||||
|
||||
mailTypeEncoding := string(typedData.EncodeType(typedData.PrimaryType)) |
||||
if mailTypeEncoding != "Mail(Person from,Person to,string contents)Person(string name,address wallet)" { |
||||
t.Errorf("Expected different encodeType result (got %s)", mailTypeEncoding) |
||||
} |
||||
} |
||||
|
||||
func TestTypeHash(t *testing.T) { |
||||
mailTypeHash := fmt.Sprintf("0x%s", common.Bytes2Hex(typedData.TypeHash(typedData.PrimaryType))) |
||||
if mailTypeHash != "0xa0cedeb2dc280ba39b857546d74f5549c3a1d7bdc2dd96bf881f76108e23dac2" { |
||||
t.Errorf("Expected different typeHash result (got %s)", mailTypeHash) |
||||
} |
||||
} |
||||
|
||||
func TestEncodeData(t *testing.T) { |
||||
hash, err := typedData.EncodeData(typedData.PrimaryType, typedData.Message, 0) |
||||
if err != nil { |
||||
t.Fatal(err) |
||||
} |
||||
dataEncoding := fmt.Sprintf("0x%s", common.Bytes2Hex(hash)) |
||||
if dataEncoding != "0xa0cedeb2dc280ba39b857546d74f5549c3a1d7bdc2dd96bf881f76108e23dac2fc71e5fa27ff56c350aa531bc129ebdf613b772b6604664f5d8dbe21b85eb0c8cd54f074a4af31b4411ff6a60c9719dbd559c221c8ac3492d9d872b041d703d1b5aadf3154a261abdd9086fc627b61efca26ae5702701d05cd2305f7c52a2fc8" { |
||||
t.Errorf("Expected different encodeData result (got %s)", dataEncoding) |
||||
} |
||||
} |
||||
|
||||
func TestMalformedDomainkeys(t *testing.T) { |
||||
// Verifies that malformed domain keys are properly caught:
|
||||
//{
|
||||
// "name": "Ether Mail",
|
||||
// "version": "1",
|
||||
// "chainId": 1,
|
||||
// "vxerifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
|
||||
//}
|
||||
jsonTypedData := ` |
||||
{ |
||||
"types": { |
||||
"EIP712Domain": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "version", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "chainId", |
||||
"type": "uint256" |
||||
}, |
||||
{ |
||||
"name": "verifyingContract", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Person": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "wallet", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Mail": [ |
||||
{ |
||||
"name": "from", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "to", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "contents", |
||||
"type": "string" |
||||
} |
||||
] |
||||
}, |
||||
"primaryType": "Mail", |
||||
"domain": { |
||||
"name": "Ether Mail", |
||||
"version": "1", |
||||
"chainId": 1, |
||||
"vxerifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC" |
||||
}, |
||||
"message": { |
||||
"from": { |
||||
"name": "Cow", |
||||
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826" |
||||
}, |
||||
"to": { |
||||
"name": "Bob", |
||||
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB" |
||||
}, |
||||
"contents": "Hello, Bob!" |
||||
} |
||||
} |
||||
` |
||||
var malformedDomainTypedData TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &malformedDomainTypedData) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
_, err = malformedDomainTypedData.HashStruct("EIP712Domain", malformedDomainTypedData.Domain.Map()) |
||||
if err == nil || err.Error() != "provided data '<nil>' doesn't match type 'address'" { |
||||
t.Errorf("Expected `provided data '<nil>' doesn't match type 'address'`, got '%v'", err) |
||||
} |
||||
} |
||||
|
||||
func TestMalformedTypesAndExtradata(t *testing.T) { |
||||
// Verifies several quirks
|
||||
// 1. Using dynamic types and only validating the prefix:
|
||||
//{
|
||||
// "name": "chainId",
|
||||
// "type": "uint256 ... and now for something completely different"
|
||||
//}
|
||||
// 2. Extra data in message:
|
||||
//{
|
||||
// "blahonga": "zonk bonk"
|
||||
//}
|
||||
jsonTypedData := ` |
||||
{ |
||||
"types": { |
||||
"EIP712Domain": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "version", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "chainId", |
||||
"type": "uint256 ... and now for something completely different" |
||||
}, |
||||
{ |
||||
"name": "verifyingContract", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Person": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "wallet", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Mail": [ |
||||
{ |
||||
"name": "from", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "to", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "contents", |
||||
"type": "string" |
||||
} |
||||
] |
||||
}, |
||||
"primaryType": "Mail", |
||||
"domain": { |
||||
"name": "Ether Mail", |
||||
"version": "1", |
||||
"chainId": 1, |
||||
"verifyingContract": "0xCCCcccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC" |
||||
}, |
||||
"message": { |
||||
"from": { |
||||
"name": "Cow", |
||||
"wallet": "0xcD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826" |
||||
}, |
||||
"to": { |
||||
"name": "Bob", |
||||
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB" |
||||
}, |
||||
"contents": "Hello, Bob!" |
||||
} |
||||
} |
||||
` |
||||
var malformedTypedData TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &malformedTypedData) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
|
||||
malformedTypedData.Types["EIP712Domain"][2].Type = "uint256" |
||||
malformedTypedData.Message["blahonga"] = "zonk bonk" |
||||
_, err = malformedTypedData.HashStruct(malformedTypedData.PrimaryType, malformedTypedData.Message) |
||||
if err == nil || err.Error() != "there is extra data provided in the message" { |
||||
t.Errorf("Expected `there is extra data provided in the message`, got '%v'", err) |
||||
} |
||||
} |
||||
|
||||
func TestTypeMismatch(t *testing.T) { |
||||
// Verifies that:
|
||||
// 1. Mismatches between the given type and data, i.e. `Person` and
|
||||
// the data item is a string, are properly caught:
|
||||
//{
|
||||
// "name": "contents",
|
||||
// "type": "Person"
|
||||
//},
|
||||
//{
|
||||
// "contents": "Hello, Bob!" <-- string not "Person"
|
||||
//}
|
||||
// 2. Nonexistent types are properly caught:
|
||||
//{
|
||||
// "name": "contents",
|
||||
// "type": "Blahonga"
|
||||
//}
|
||||
jsonTypedData := ` |
||||
{ |
||||
"types": { |
||||
"EIP712Domain": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "version", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "chainId", |
||||
"type": "uint256" |
||||
}, |
||||
{ |
||||
"name": "verifyingContract", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Person": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "wallet", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Mail": [ |
||||
{ |
||||
"name": "from", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "to", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "contents", |
||||
"type": "Person" |
||||
} |
||||
] |
||||
}, |
||||
"primaryType": "Mail", |
||||
"domain": { |
||||
"name": "Ether Mail", |
||||
"version": "1", |
||||
"chainId": 1, |
||||
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC" |
||||
}, |
||||
"message": { |
||||
"from": { |
||||
"name": "Cow", |
||||
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826" |
||||
}, |
||||
"to": { |
||||
"name": "Bob", |
||||
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB" |
||||
}, |
||||
"contents": "Hello, Bob!" |
||||
} |
||||
} |
||||
` |
||||
var mismatchTypedData TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &mismatchTypedData) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
_, err = mismatchTypedData.HashStruct(mismatchTypedData.PrimaryType, mismatchTypedData.Message) |
||||
if err.Error() != "provided data 'Hello, Bob!' doesn't match type 'Person'" { |
||||
t.Errorf("Expected `provided data 'Hello, Bob!' doesn't match type 'Person'`, got '%v'", err) |
||||
} |
||||
|
||||
mismatchTypedData.Types["Mail"][2].Type = "Blahonga" |
||||
_, err = mismatchTypedData.HashStruct(mismatchTypedData.PrimaryType, mismatchTypedData.Message) |
||||
if err == nil || err.Error() != "reference type 'Blahonga' is undefined" { |
||||
t.Fatalf("Expected `reference type 'Blahonga' is undefined`, got '%v'", err) |
||||
} |
||||
} |
||||
|
||||
func TestTypeOverflow(t *testing.T) { |
||||
// Verifies data that doesn't fit into it:
|
||||
//{
|
||||
// "test": 65536 <-- test defined as uint8
|
||||
//}
|
||||
var overflowTypedData TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &overflowTypedData) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
// Set test to something outside uint8
|
||||
(overflowTypedData.Message["from"]).(map[string]interface{})["test"] = big.NewInt(65536) |
||||
|
||||
_, err = overflowTypedData.HashStruct(overflowTypedData.PrimaryType, overflowTypedData.Message) |
||||
if err == nil || err.Error() != "integer larger than 'uint8'" { |
||||
t.Fatalf("Expected `integer larger than 'uint8'`, got '%v'", err) |
||||
} |
||||
|
||||
(overflowTypedData.Message["from"]).(map[string]interface{})["test"] = big.NewInt(3) |
||||
(overflowTypedData.Message["to"]).(map[string]interface{})["test"] = big.NewInt(4) |
||||
|
||||
_, err = overflowTypedData.HashStruct(overflowTypedData.PrimaryType, overflowTypedData.Message) |
||||
if err != nil { |
||||
t.Fatalf("Expected no err, got '%v'", err) |
||||
} |
||||
} |
||||
|
||||
func TestArray(t *testing.T) { |
||||
// Makes sure that arrays work fine
|
||||
//{
|
||||
// "type": "address[]"
|
||||
//},
|
||||
//{
|
||||
// "type": "string[]"
|
||||
//},
|
||||
//{
|
||||
// "type": "uint16[]",
|
||||
//}
|
||||
|
||||
jsonTypedData := ` |
||||
{ |
||||
"types": { |
||||
"EIP712Domain": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "version", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "chainId", |
||||
"type": "uint256" |
||||
}, |
||||
{ |
||||
"name": "verifyingContract", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Foo": [ |
||||
{ |
||||
"name": "bar", |
||||
"type": "address[]" |
||||
} |
||||
] |
||||
}, |
||||
"primaryType": "Foo", |
||||
"domain": { |
||||
"name": "Lorem", |
||||
"version": "1", |
||||
"chainId": 1, |
||||
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC" |
||||
}, |
||||
"message": { |
||||
"bar": [ |
||||
"0x0000000000000000000000000000000000000001", |
||||
"0x0000000000000000000000000000000000000002", |
||||
"0x0000000000000000000000000000000000000003" |
||||
] |
||||
} |
||||
} |
||||
` |
||||
var arrayTypedData TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &arrayTypedData) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message) |
||||
if err != nil { |
||||
t.Fatalf("Expected no err, got '%v'", err) |
||||
} |
||||
|
||||
// Change array to string
|
||||
arrayTypedData.Types["Foo"][0].Type = "string[]" |
||||
arrayTypedData.Message["bar"] = []interface{}{ |
||||
"lorem", |
||||
"ipsum", |
||||
"dolores", |
||||
} |
||||
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message) |
||||
if err != nil { |
||||
t.Fatalf("Expected no err, got '%v'", err) |
||||
} |
||||
|
||||
// Change array to uint
|
||||
arrayTypedData.Types["Foo"][0].Type = "uint[]" |
||||
arrayTypedData.Message["bar"] = []interface{}{ |
||||
big.NewInt(1955), |
||||
big.NewInt(108), |
||||
big.NewInt(44010), |
||||
} |
||||
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message) |
||||
if err != nil { |
||||
t.Fatalf("Expected no err, got '%v'", err) |
||||
} |
||||
|
||||
// Should not work with fixed-size arrays
|
||||
arrayTypedData.Types["Foo"][0].Type = "uint[3]" |
||||
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message) |
||||
if err == nil || err.Error() != "unknown type 'uint[3]'" { |
||||
t.Fatalf("Expected `unknown type 'uint[3]'`, got '%v'", err) |
||||
} |
||||
} |
||||
|
||||
func TestCustomTypeAsArray(t *testing.T) { |
||||
var jsonTypedData = ` |
||||
{ |
||||
"types": { |
||||
"EIP712Domain": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "version", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "chainId", |
||||
"type": "uint256" |
||||
}, |
||||
{ |
||||
"name": "verifyingContract", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Person": [ |
||||
{ |
||||
"name": "name", |
||||
"type": "string" |
||||
}, |
||||
{ |
||||
"name": "wallet", |
||||
"type": "address" |
||||
} |
||||
], |
||||
"Person[]": [ |
||||
{ |
||||
"name": "baz", |
||||
"type": "string" |
||||
} |
||||
], |
||||
"Mail": [ |
||||
{ |
||||
"name": "from", |
||||
"type": "Person" |
||||
}, |
||||
{ |
||||
"name": "to", |
||||
"type": "Person[]" |
||||
}, |
||||
{ |
||||
"name": "contents", |
||||
"type": "string" |
||||
} |
||||
] |
||||
}, |
||||
"primaryType": "Mail", |
||||
"domain": { |
||||
"name": "Ether Mail", |
||||
"version": "1", |
||||
"chainId": 1, |
||||
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC" |
||||
}, |
||||
"message": { |
||||
"from": { |
||||
"name": "Cow", |
||||
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826" |
||||
}, |
||||
"to": {"baz": "foo"}, |
||||
"contents": "Hello, Bob!" |
||||
} |
||||
} |
||||
|
||||
` |
||||
var malformedTypedData TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &malformedTypedData) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
_, err = malformedTypedData.HashStruct("EIP712Domain", malformedTypedData.Domain.Map()) |
||||
if err != nil { |
||||
t.Errorf("Expected no error, got '%v'", err) |
||||
} |
||||
} |
||||
|
||||
func TestFormatter(t *testing.T) { |
||||
|
||||
var d TypedData |
||||
err := json.Unmarshal([]byte(jsonTypedData), &d) |
||||
if err != nil { |
||||
t.Fatalf("unmarshalling failed '%v'", err) |
||||
} |
||||
formatted := d.Format() |
||||
for _, item := range formatted { |
||||
fmt.Printf("'%v'\n", item.Pprint(0)) |
||||
} |
||||
|
||||
j, _ := json.Marshal(formatted) |
||||
fmt.Printf("'%v'\n", string(j)) |
||||
} |
||||
Loading…
Reference in new issue