0g-chain/migrate/rest_v0_3/rest.go

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package rest_v0_3
import (
"fmt"
"net/http"
"strings"
"github.com/gorilla/mux"
"github.com/cosmos/cosmos-sdk/client/context"
"github.com/cosmos/cosmos-sdk/client/rpc"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/types/rest"
"github.com/cosmos/cosmos-sdk/x/auth"
authrest "github.com/cosmos/cosmos-sdk/x/auth/client/rest"
"github.com/cosmos/cosmos-sdk/x/auth/client/utils"
authexported "github.com/cosmos/cosmos-sdk/x/auth/exported"
"github.com/cosmos/cosmos-sdk/x/auth/types"
vestingtypes "github.com/cosmos/cosmos-sdk/x/auth/vesting/types"
disttypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
"github.com/cosmos/cosmos-sdk/x/supply"
v18de63auth "github.com/kava-labs/kava/migrate/v0_8/sdk/auth/v18de63"
v18de63supply "github.com/kava-labs/kava/migrate/v0_8/sdk/supply/v18de63"
v18de63sdk "github.com/kava-labs/kava/migrate/v0_8/sdk/types"
v032tendermint "github.com/kava-labs/kava/migrate/v0_8/tendermint/v0_32"
v032tendermintrpc "github.com/kava-labs/kava/migrate/v0_8/tendermint/v0_32/rpccore"
valvesting "github.com/kava-labs/kava/x/validator-vesting"
v0_3valvesting "github.com/kava-labs/kava/x/validator-vesting/legacy/v0_3"
)
func RegisterRoutes(cliCtx context.CLIContext, r *mux.Router) {
s := r.PathPrefix("/v0_3").Subrouter()
s.HandleFunc("/node_info", rpc.NodeInfoRequestHandlerFn(cliCtx)).Methods("GET")
s.HandleFunc("/auth/accounts/{address}", QueryAccountRequestHandlerFn(cliCtx)).Methods("GET")
s.HandleFunc("/txs/{hash}", QueryTxRequestHandlerFn(cliCtx)).Methods("GET")
// r.HandleFunc("/txs", QueryTxsRequestHandlerFn(cliCtx)).Methods("GET") // TODO does trust wallet query txs?
s.HandleFunc("/txs", authrest.BroadcastTxRequest(cliCtx)).Methods("POST")
s.HandleFunc("/blocks/latest", LatestBlockRequestHandlerFn(cliCtx)).Methods("GET")
// These endpoints are unchanged between cosmos v18de63 and v0.38.4, but can't import private methods so copy and pasting handler methods.
// Get all delegations from a delegator
s.HandleFunc(
"/staking/delegators/{delegatorAddr}/delegations",
delegatorDelegationsHandlerFn(cliCtx),
).Methods("GET")
// Get all unbonding delegations from a delegator
s.HandleFunc(
"/staking/delegators/{delegatorAddr}/unbonding_delegations",
delegatorUnbondingDelegationsHandlerFn(cliCtx),
).Methods("GET")
// Get the total rewards balance from all delegations
s.HandleFunc(
"/distribution/delegators/{delegatorAddr}/rewards",
delegatorRewardsHandlerFn(cliCtx, disttypes.ModuleName),
).Methods("GET")
}
// REST handler to get the latest block
func LatestBlockRequestHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
output, err := getBlock(cliCtx, nil)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
rest.PostProcessResponseBare(w, cliCtx, output)
}
}
func getBlock(cliCtx context.CLIContext, height *int64) ([]byte, error) {
// get the node
node, err := cliCtx.GetNode()
if err != nil {
return nil, err
}
res, err := node.Block(height)
if err != nil {
return nil, err
}
// Convert block to old type
header := v032tendermint.Header{
Version: v032tendermint.Consensus{
Block: v032tendermint.Protocol(res.Block.Header.Version.Block),
App: v032tendermint.Protocol(res.Block.Header.Version.App),
},
ChainID: res.Block.Header.ChainID,
Height: res.Block.Header.Height,
Time: res.Block.Header.Time,
NumTxs: 0, // trust wallet doesn't use this field
TotalTxs: 0, // trust wallet doesn't use this field
LastBlockID: res.Block.Header.LastBlockID,
LastCommitHash: res.Block.Header.LastCommitHash,
DataHash: res.Block.Header.DataHash,
ValidatorsHash: res.Block.Header.ValidatorsHash,
NextValidatorsHash: res.Block.Header.NextValidatorsHash,
ConsensusHash: res.Block.Header.ConsensusHash,
AppHash: res.Block.Header.AppHash,
LastResultsHash: res.Block.Header.LastResultsHash,
EvidenceHash: res.Block.Header.EvidenceHash,
ProposerAddress: res.Block.Header.ProposerAddress,
}
block := v032tendermint.Block{
Header: header,
Data: res.Block.Data,
Evidence: res.Block.Evidence,
LastCommit: nil, // trust wallet doesn't need to access commit info
}
blockMeta := v032tendermint.BlockMeta{
BlockID: res.BlockID,
Header: header,
}
oldResponse := v032tendermintrpc.ResultBlock{
Block: &block,
BlockMeta: &blockMeta,
}
return codec.Cdc.MarshalJSON(oldResponse)
}
// QueryAccountRequestHandlerFn handle auth/accounts queries
// This function is identical to v0.8 except the queried account is cast to the v0.3 account type so it marshals in the old format.
func QueryAccountRequestHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bech32addr := vars["address"]
addr, err := sdk.AccAddressFromBech32(bech32addr)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
accGetter := types.NewAccountRetriever(cliCtx)
account, height, err := accGetter.GetAccountWithHeight(addr)
// convert v0.8 account type into old v0.3 account type so that it json marshals into the v0.3 format
oldAccount := rollbackAccountType(account)
// use old codec with old account interface registered
cliCtx = cliCtx.WithCodec(makeCodecV03())
if err != nil {
if err := accGetter.EnsureExists(addr); err != nil {
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, v18de63auth.BaseAccount{})
return
}
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, oldAccount)
}
}
// QueryTxRequestHandlerFn implements a REST handler that queries a transaction
// by hash in a committed block.
func QueryTxRequestHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
hashHexStr := vars["hash"]
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
output, err := utils.QueryTx(cliCtx, hashHexStr)
if err != nil {
if strings.Contains(err.Error(), hashHexStr) {
rest.WriteErrorResponse(w, http.StatusNotFound, err.Error())
return
}
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
// convert v0.8 TxResponse to a v0.3 Tx Response
oldOutput := rollbackTxResponseType(output)
if oldOutput.Empty() {
rest.WriteErrorResponse(w, http.StatusNotFound, fmt.Sprintf("no transaction found with hash %s", hashHexStr))
}
rest.PostProcessResponseBare(w, cliCtx, oldOutput)
}
}
func rollbackTxResponseType(response sdk.TxResponse) v18de63sdk.TxResponse {
events := sdk.StringEvents{}
for _, msgLog := range response.Logs {
events = append(events, msgLog.Events...)
}
return v18de63sdk.TxResponse{
Height: response.Height,
TxHash: response.TxHash,
Codespace: response.Codespace,
Code: response.Code,
Data: response.Data,
RawLog: response.RawLog,
Logs: nil, // trust wallet doesn't use logs, so leaving them out
Info: response.Info,
GasWanted: response.GasWanted,
GasUsed: response.GasUsed,
Tx: response.Tx,
Timestamp: response.Timestamp,
Events: events,
}
}
func makeCodecV03() *codec.Codec {
v0_3Codec := codec.New()
codec.RegisterCrypto(v0_3Codec)
v18de63auth.RegisterCodec(v0_3Codec)
v18de63auth.RegisterCodecVesting(v0_3Codec)
v18de63supply.RegisterCodec(v0_3Codec)
v0_3valvesting.RegisterCodec(v0_3Codec)
return v0_3Codec
}
func rollbackAccountType(newAccount authexported.Account) v18de63auth.Account {
switch acc := newAccount.(type) {
case *auth.BaseAccount:
return v18de63auth.BaseAccount(*acc)
case *vestingtypes.PeriodicVestingAccount:
ba := v18de63auth.BaseAccount(*(acc.BaseVestingAccount.BaseAccount))
bva := v18de63auth.BaseVestingAccount{
BaseAccount: &ba,
OriginalVesting: acc.BaseVestingAccount.OriginalVesting,
DelegatedFree: acc.BaseVestingAccount.DelegatedFree,
DelegatedVesting: acc.BaseVestingAccount.DelegatedVesting,
EndTime: acc.BaseVestingAccount.EndTime,
}
var newPeriods v18de63auth.Periods
for _, p := range acc.VestingPeriods {
newPeriods = append(newPeriods, v18de63auth.Period(p))
}
pva := v18de63auth.PeriodicVestingAccount{
BaseVestingAccount: &bva,
StartTime: acc.StartTime,
VestingPeriods: newPeriods,
}
return pva
case *valvesting.ValidatorVestingAccount:
ba := v18de63auth.BaseAccount(*(acc.PeriodicVestingAccount.BaseVestingAccount.BaseAccount))
bva := v18de63auth.BaseVestingAccount{
BaseAccount: &ba,
OriginalVesting: acc.PeriodicVestingAccount.BaseVestingAccount.OriginalVesting,
DelegatedFree: acc.PeriodicVestingAccount.BaseVestingAccount.DelegatedFree,
DelegatedVesting: acc.PeriodicVestingAccount.BaseVestingAccount.DelegatedVesting,
EndTime: acc.PeriodicVestingAccount.BaseVestingAccount.EndTime,
}
var newPeriods v18de63auth.Periods
for _, p := range acc.PeriodicVestingAccount.VestingPeriods {
newPeriods = append(newPeriods, v18de63auth.Period(p))
}
pva := v18de63auth.PeriodicVestingAccount{
BaseVestingAccount: &bva,
StartTime: acc.PeriodicVestingAccount.StartTime,
VestingPeriods: newPeriods,
}
var newVestingProgress []v0_3valvesting.VestingProgress
for _, p := range acc.VestingPeriodProgress {
newVestingProgress = append(newVestingProgress, v0_3valvesting.VestingProgress(p))
}
vva := v0_3valvesting.ValidatorVestingAccount{
PeriodicVestingAccount: &pva,
ValidatorAddress: acc.ValidatorAddress,
ReturnAddress: acc.ReturnAddress,
SigningThreshold: acc.SigningThreshold,
CurrentPeriodProgress: v0_3valvesting.CurrentPeriodProgress(acc.CurrentPeriodProgress),
VestingPeriodProgress: newVestingProgress,
DebtAfterFailedVesting: acc.DebtAfterFailedVesting,
}
return vva
case supply.ModuleAccount:
ba := v18de63auth.BaseAccount(*(acc.BaseAccount))
ma := v18de63supply.ModuleAccount{
BaseAccount: &ba,
Name: acc.Name,
Permissions: acc.Permissions,
}
return ma
case nil:
return acc
default:
panic(fmt.Errorf("unrecognized account type %+v", acc))
}
}
// staking handler funcs
// HTTP request handler to query a delegator delegations
func delegatorDelegationsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return queryDelegator(cliCtx, fmt.Sprintf("custom/%s/%s", stakingtypes.QuerierRoute, stakingtypes.QueryDelegatorDelegations))
}
// HTTP request handler to query a delegator unbonding delegations
func delegatorUnbondingDelegationsHandlerFn(cliCtx context.CLIContext) http.HandlerFunc {
return queryDelegator(cliCtx, "custom/staking/delegatorUnbondingDelegations")
}
func queryDelegator(cliCtx context.CLIContext, endpoint string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bech32delegator := vars["delegatorAddr"]
delegatorAddr, err := sdk.AccAddressFromBech32(bech32delegator)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
params := stakingtypes.NewQueryDelegatorParams(delegatorAddr)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return
}
res, height, err := cliCtx.QueryWithData(endpoint, bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}
// distribution handler funcs
// HTTP request handler to query the total rewards balance from all delegations
func delegatorRewardsHandlerFn(cliCtx context.CLIContext, queryRoute string) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
cliCtx, ok := rest.ParseQueryHeightOrReturnBadRequest(w, cliCtx, r)
if !ok {
return
}
delegatorAddr, ok := checkDelegatorAddressVar(w, r)
if !ok {
return
}
params := disttypes.NewQueryDelegatorParams(delegatorAddr)
bz, err := cliCtx.Codec.MarshalJSON(params)
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, fmt.Sprintf("failed to marshal params: %s", err))
return
}
route := fmt.Sprintf("custom/%s/%s", queryRoute, disttypes.QueryDelegatorTotalRewards)
res, height, err := cliCtx.QueryWithData(route, bz)
if err != nil {
rest.WriteErrorResponse(w, http.StatusInternalServerError, err.Error())
return
}
cliCtx = cliCtx.WithHeight(height)
rest.PostProcessResponse(w, cliCtx, res)
}
}
func checkDelegatorAddressVar(w http.ResponseWriter, r *http.Request) (sdk.AccAddress, bool) {
addr, err := sdk.AccAddressFromBech32(mux.Vars(r)["delegatorAddr"])
if err != nil {
rest.WriteErrorResponse(w, http.StatusBadRequest, err.Error())
return nil, false
}
return addr, true
}