100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
package rest
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import (
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"io/ioutil"
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"net/http"
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"github.com/cosmos/cosmos-sdk/client/context"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/wire"
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"github.com/pkg/errors"
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)
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type baseReq struct {
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Name string `json:"name"`
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Password string `json:"password"`
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ChainID string `json:"chain_id"`
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AccountNumber int64 `json:"account_number"`
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Sequence int64 `json:"sequence"`
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Gas int64 `json:"gas"`
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}
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func buildReq(w http.ResponseWriter, r *http.Request, cdc *wire.Codec, req interface{}) error {
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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writeErr(&w, http.StatusBadRequest, err.Error())
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return err
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}
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err = cdc.UnmarshalJSON(body, req)
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if err != nil {
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writeErr(&w, http.StatusBadRequest, err.Error())
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return err
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}
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return nil
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}
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func (req baseReq) baseReqValidate(w http.ResponseWriter) bool {
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if len(req.Name) == 0 {
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writeErr(&w, http.StatusUnauthorized, "Name required but not specified")
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return false
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}
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if len(req.Password) == 0 {
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writeErr(&w, http.StatusUnauthorized, "Password required but not specified")
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return false
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}
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if len(req.ChainID) == 0 {
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writeErr(&w, http.StatusUnauthorized, "ChainID required but not specified")
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return false
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}
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if req.AccountNumber < 0 {
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writeErr(&w, http.StatusUnauthorized, "Account Number required but not specified")
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return false
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}
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if req.Sequence < 0 {
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writeErr(&w, http.StatusUnauthorized, "Sequence required but not specified")
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return false
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}
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return true
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}
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func writeErr(w *http.ResponseWriter, status int, msg string) {
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(*w).WriteHeader(status)
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err := errors.New(msg)
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(*w).Write([]byte(err.Error()))
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}
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// TODO: Build this function out into a more generic base-request (probably should live in client/lcd)
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func signAndBuild(w http.ResponseWriter, ctx context.CoreContext, baseReq baseReq, msg sdk.Msg, cdc *wire.Codec) {
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ctx = ctx.WithAccountNumber(baseReq.AccountNumber)
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ctx = ctx.WithSequence(baseReq.Sequence)
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ctx = ctx.WithChainID(baseReq.ChainID)
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// add gas to context
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ctx = ctx.WithGas(baseReq.Gas)
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txBytes, err := ctx.SignAndBuild(baseReq.Name, baseReq.Password, []sdk.Msg{msg}, cdc)
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if err != nil {
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writeErr(&w, http.StatusUnauthorized, err.Error())
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return
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}
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// send
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res, err := ctx.BroadcastTx(txBytes)
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if err != nil {
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writeErr(&w, http.StatusInternalServerError, err.Error())
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return
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}
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output, err := wire.MarshalJSONIndent(cdc, res)
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if err != nil {
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writeErr(&w, http.StatusInternalServerError, err.Error())
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return
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}
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w.Write(output)
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}
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