github.com/Finschia/finschia-sdk@v0.48.1/x/foundation/keeper/internal/proposal_handler.go (about)

     1  package internal
     2  
     3  import (
     4  	sdk "github.com/Finschia/finschia-sdk/types"
     5  	sdkerrors "github.com/Finschia/finschia-sdk/types/errors"
     6  	authtypes "github.com/Finschia/finschia-sdk/x/auth/types"
     7  	"github.com/Finschia/finschia-sdk/x/foundation"
     8  	govtypes "github.com/Finschia/finschia-sdk/x/gov/types"
     9  )
    10  
    11  // NewFoundationProposalsHandler creates a handler for the gov proposals.
    12  func NewFoundationProposalsHandler(k Keeper) govtypes.Handler {
    13  	return func(ctx sdk.Context, content govtypes.Content) error {
    14  		switch c := content.(type) {
    15  		case *foundation.FoundationExecProposal:
    16  			return handleFoundationExecProposal(ctx, k, *c)
    17  
    18  		default:
    19  			return sdkerrors.ErrUnknownRequest.Wrapf("unrecognized param proposal content type: %T", c)
    20  		}
    21  	}
    22  }
    23  
    24  func handleFoundationExecProposal(ctx sdk.Context, k Keeper, proposal foundation.FoundationExecProposal) error {
    25  	msgs := foundation.GetMessagesFromFoundationExecProposal(proposal)
    26  
    27  	authority := authtypes.NewModuleAddress(govtypes.ModuleName)
    28  	if err := ensureMsgAuthz(msgs, authority); err != nil {
    29  		return err
    30  	}
    31  
    32  	// allow the following messages
    33  	allowedUrls := map[string]bool{
    34  		sdk.MsgTypeURL((*foundation.MsgUpdateCensorship)(nil)): true,
    35  		sdk.MsgTypeURL((*foundation.MsgGrant)(nil)):            true,
    36  		sdk.MsgTypeURL((*foundation.MsgRevoke)(nil)):           true,
    37  	}
    38  
    39  	for i, msg := range msgs {
    40  		url := sdk.MsgTypeURL(msg)
    41  		if !allowedUrls[url] {
    42  			return sdkerrors.ErrInvalidRequest.Wrapf("%s not allowed", url)
    43  		}
    44  
    45  		handler := k.router.Handler(msg)
    46  		if handler == nil {
    47  			return sdkerrors.ErrUnknownRequest.Wrapf("no message handler found for %q", url)
    48  		}
    49  		_, err := handler(ctx, msg)
    50  		if err != nil {
    51  			return sdkerrors.Wrapf(err, "message %q at position %d", msg, i)
    52  		}
    53  	}
    54  
    55  	return nil
    56  }