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proposal_handler.go
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/
proposal_handler.go
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package internal
import (
sdk "github.com/Finschia/finschia-sdk/types"
sdkerrors "github.com/Finschia/finschia-sdk/types/errors"
authtypes "github.com/Finschia/finschia-sdk/x/auth/types"
"github.com/Finschia/finschia-sdk/x/foundation"
govtypes "github.com/Finschia/finschia-sdk/x/gov/types"
)
// NewFoundationProposalsHandler creates a handler for the gov proposals.
func NewFoundationProposalsHandler(k Keeper) govtypes.Handler {
return func(ctx sdk.Context, content govtypes.Content) error {
switch c := content.(type) {
case *foundation.FoundationExecProposal:
return handleFoundationExecProposal(ctx, k, *c)
default:
return sdkerrors.ErrUnknownRequest.Wrapf("unrecognized param proposal content type: %T", c)
}
}
}
func handleFoundationExecProposal(ctx sdk.Context, k Keeper, proposal foundation.FoundationExecProposal) error {
msgs := foundation.GetMessagesFromFoundationExecProposal(proposal)
authority := authtypes.NewModuleAddress(govtypes.ModuleName)
if err := ensureMsgAuthz(msgs, authority); err != nil {
return err
}
// allow the following messages
allowedUrls := map[string]bool{
sdk.MsgTypeURL((*foundation.MsgUpdateCensorship)(nil)): true,
sdk.MsgTypeURL((*foundation.MsgGrant)(nil)): true,
sdk.MsgTypeURL((*foundation.MsgRevoke)(nil)): true,
}
for i, msg := range msgs {
url := sdk.MsgTypeURL(msg)
if !allowedUrls[url] {
return sdkerrors.ErrInvalidRequest.Wrapf("%s not allowed", url)
}
handler := k.router.Handler(msg)
if handler == nil {
return sdkerrors.ErrUnknownRequest.Wrapf("no message handler found for %q", url)
}
_, err := handler(ctx, msg)
if err != nil {
return sdkerrors.Wrapf(err, "message %q at position %d", msg, i)
}
}
return nil
}