128 lines
3.4 KiB
Go
128 lines
3.4 KiB
Go
package slashing
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import (
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"fmt"
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abci "github.com/tendermint/tendermint/abci/types"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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)
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// Query endpoints supported by the slashing querier
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const (
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QueryParameters = "parameters"
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QuerySigningInfo = "signingInfo"
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QuerySigningInfos = "signingInfos"
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)
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// NewQuerier creates a new querier for slashing clients.
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func NewQuerier(k Keeper) sdk.Querier {
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return func(ctx sdk.Context, path []string, req abci.RequestQuery) ([]byte, sdk.Error) {
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switch path[0] {
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case QueryParameters:
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return queryParams(ctx, k)
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case QuerySigningInfo:
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return querySigningInfo(ctx, req, k)
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case QuerySigningInfos:
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return querySigningInfos(ctx, req, k)
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default:
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return nil, sdk.ErrUnknownRequest("unknown staking query endpoint")
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}
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}
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}
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func queryParams(ctx sdk.Context, k Keeper) ([]byte, sdk.Error) {
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params := k.GetParams(ctx)
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res, err := codec.MarshalJSONIndent(moduleCdc, params)
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if err != nil {
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return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to marshal JSON", err.Error()))
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}
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return res, nil
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}
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// QuerySigningInfoParams defines the params for the following queries:
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// - 'custom/slashing/signingInfo'
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type QuerySigningInfoParams struct {
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ConsAddress sdk.ConsAddress
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}
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func NewQuerySigningInfoParams(consAddr sdk.ConsAddress) QuerySigningInfoParams {
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return QuerySigningInfoParams{consAddr}
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}
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func querySigningInfo(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
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var params QuerySigningInfoParams
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err := moduleCdc.UnmarshalJSON(req.Data, ¶ms)
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if err != nil {
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return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
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}
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signingInfo, found := k.getValidatorSigningInfo(ctx, params.ConsAddress)
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if !found {
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return nil, ErrNoSigningInfoFound(DefaultCodespace, params.ConsAddress)
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}
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res, err := codec.MarshalJSONIndent(moduleCdc, signingInfo)
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if err != nil {
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return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to JSON marshal result: %s", err.Error()))
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}
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return res, nil
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}
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// QuerySigningInfosParams defines the params for the following queries:
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// - 'custom/slashing/signingInfos'
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type QuerySigningInfosParams struct {
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Page, Limit int
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}
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func NewQuerySigningInfosParams(page, limit int) QuerySigningInfosParams {
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return QuerySigningInfosParams{page, limit}
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}
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func querySigningInfos(ctx sdk.Context, req abci.RequestQuery, k Keeper) ([]byte, sdk.Error) {
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var params QuerySigningInfosParams
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err := moduleCdc.UnmarshalJSON(req.Data, ¶ms)
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if err != nil {
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return nil, sdk.ErrInternal(fmt.Sprintf("failed to parse params: %s", err))
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}
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if params.Limit == 0 {
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// set the default limit to max bonded if no limit was provided
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params.Limit = int(k.validatorSet.MaxValidators(ctx))
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}
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var signingInfos []ValidatorSigningInfo
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k.IterateValidatorSigningInfos(ctx, func(consAddr sdk.ConsAddress, info ValidatorSigningInfo) (stop bool) {
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signingInfos = append(signingInfos, info)
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return false
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})
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// get pagination bounds
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start := (params.Page - 1) * params.Limit
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end := params.Limit + start
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if end >= len(signingInfos) {
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end = len(signingInfos)
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}
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if start >= len(signingInfos) {
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// page is out of bounds
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signingInfos = []ValidatorSigningInfo{}
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} else {
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signingInfos = signingInfos[start:end]
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}
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res, err := codec.MarshalJSONIndent(moduleCdc, signingInfos)
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if err != nil {
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return nil, sdk.ErrInternal(sdk.AppendMsgToErr("failed to JSON marshal result: %s", err.Error()))
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}
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return res, nil
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}
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