go-pulse/accounts/url.go
Martin Holst Swende ec3db0f56c cmd/clef, signer: initial poc of the standalone signer (#16154)
* signer: introduce external signer command

* cmd/signer, rpc: Implement new signer. Add info about remote user to Context

* signer: refactored request/response, made use of urfave.cli

* cmd/signer: Use common flags

* cmd/signer: methods to validate calldata against abi

* cmd/signer: work on abi parser

* signer: add mutex around UI

* cmd/signer: add json 4byte directory, remove passwords from api

* cmd/signer: minor changes

* cmd/signer: Use ErrRequestDenied, enable lightkdf

* cmd/signer: implement tests

* cmd/signer: made possible for UI to modify tx parameters

* cmd/signer: refactors, removed channels in ui comms, added UI-api via stdin/out

* cmd/signer: Made lowercase json-definitions, added UI-signer test functionality

* cmd/signer: update documentation

* cmd/signer: fix bugs, improve abi detection, abi argument display

* cmd/signer: minor change in json format

* cmd/signer: rework json communication

* cmd/signer: implement mixcase addresses in API, fix json id bug

* cmd/signer: rename fromaccount, update pythonpoc with new json encoding format

* cmd/signer: make use of new abi interface

* signer: documentation

* signer/main: remove redundant  option

* signer: implement audit logging

* signer: create package 'signer', minor changes

* common: add 0x-prefix to mixcaseaddress in json marshalling + validation

* signer, rules, storage: implement rules + ephemeral storage for signer rules

* signer: implement OnApprovedTx, change signing response (API BREAKAGE)

* signer: refactoring + documentation

* signer/rules: implement dispatching to next handler

* signer: docs

* signer/rules: hide json-conversion from users, ensure context is cleaned

* signer: docs

* signer: implement validation rules, change signature of call_info

* signer: fix log flaw with string pointer

* signer: implement custom 4byte databsae that saves submitted signatures

* signer/storage: implement aes-gcm-backed credential storage

* accounts: implement json unmarshalling of url

* signer: fix listresponse, fix gas->uint64

* node: make http/ipc start methods public

* signer: add ipc capability+review concerns

* accounts: correct docstring

* signer: address review concerns

* rpc: go fmt -s

* signer: review concerns+ baptize Clef

* signer,node: move Start-functions to separate file

* signer: formatting
2018-04-16 15:04:32 +03:00

105 lines
3.0 KiB
Go

// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package accounts
import (
"encoding/json"
"errors"
"fmt"
"strings"
)
// URL represents the canonical identification URL of a wallet or account.
//
// It is a simplified version of url.URL, with the important limitations (which
// are considered features here) that it contains value-copyable components only,
// as well as that it doesn't do any URL encoding/decoding of special characters.
//
// The former is important to allow an account to be copied without leaving live
// references to the original version, whereas the latter is important to ensure
// one single canonical form opposed to many allowed ones by the RFC 3986 spec.
//
// As such, these URLs should not be used outside of the scope of an Ethereum
// wallet or account.
type URL struct {
Scheme string // Protocol scheme to identify a capable account backend
Path string // Path for the backend to identify a unique entity
}
// parseURL converts a user supplied URL into the accounts specific structure.
func parseURL(url string) (URL, error) {
parts := strings.Split(url, "://")
if len(parts) != 2 || parts[0] == "" {
return URL{}, errors.New("protocol scheme missing")
}
return URL{
Scheme: parts[0],
Path: parts[1],
}, nil
}
// String implements the stringer interface.
func (u URL) String() string {
if u.Scheme != "" {
return fmt.Sprintf("%s://%s", u.Scheme, u.Path)
}
return u.Path
}
// TerminalString implements the log.TerminalStringer interface.
func (u URL) TerminalString() string {
url := u.String()
if len(url) > 32 {
return url[:31] + "…"
}
return url
}
// MarshalJSON implements the json.Marshaller interface.
func (u URL) MarshalJSON() ([]byte, error) {
return json.Marshal(u.String())
}
// UnmarshalJSON parses url.
func (u *URL) UnmarshalJSON(input []byte) error {
var textUrl string
err := json.Unmarshal(input, &textUrl)
if err != nil {
return err
}
url, err := parseURL(textUrl)
if err != nil {
return err
}
u.Scheme = url.Scheme
u.Path = url.Path
return nil
}
// Cmp compares x and y and returns:
//
// -1 if x < y
// 0 if x == y
// +1 if x > y
//
func (u URL) Cmp(url URL) int {
if u.Scheme == url.Scheme {
return strings.Compare(u.Path, url.Path)
}
return strings.Compare(u.Scheme, url.Scheme)
}