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Fix error message #1603

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Fix error message #1603

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7 changes: 4 additions & 3 deletions pkg/workflows/wasm/host/internal/rawsdk/helpers_wasip1.go
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Original file line number Diff line number Diff line change
Expand Up @@ -197,11 +197,12 @@ func await[I, O proto.Message](input I, output O, fn awaitFn) {
bytes := fn(mptr, mlen, responsePtr, responseLen)

if bytes < 0 {
SendError(errors.New("awaitCapabilities returned an error"))
SendError(fmt.Errorf("awaitCapabilities return an error: %s", response[:-bytes]))
}

if proto.Unmarshal(response[:bytes], output) != nil {
SendError(errors.New("failed to proto unmarshal await response"))
err := proto.Unmarshal(response[:bytes], output)
if err != nil {
SendError(fmt.Errorf("failed to unmarshal await response: %w", err))
}
}

Expand Down
18 changes: 13 additions & 5 deletions pkg/workflows/wasm/host/module.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1015,6 +1015,14 @@ func truncateWasmWrite(caller *wasmtime.Caller, src []byte, ptr int32, size int3
return write(memory, src, ptr, size)
}

func truncateWasmWriteErr(caller *wasmtime.Caller, src []byte, ptr int32, size int32) int64 {
code := truncateWasmWrite(caller, src, ptr, size)
if code > 0 {
return -int64(len(src))
}
return code
}

// write copies the given src byte slice into the memory at the given pointer and max size.
func write(memory, src []byte, ptr, maxSize int32) int64 {
if ptr < 0 {
Expand Down Expand Up @@ -1145,36 +1153,36 @@ func createAwaitSecretsFn(
if err != nil {
errStr := fmt.Sprintf("error reading from wasm %s", err)
logger.Error(errStr)
return truncateWasmWrite(caller, []byte(errStr), responseBuffer, maxResponseLen)
return truncateWasmWriteErr(caller, []byte(errStr), responseBuffer, maxResponseLen)
}

req := &sdkpb.AwaitSecretsRequest{}
err = proto.Unmarshal(b, req)
if err != nil {
errStr := err.Error()
logger.Error(errStr)
return truncateWasmWrite(caller, []byte(errStr), responseBuffer, maxResponseLen)
return truncateWasmWriteErr(caller, []byte(errStr), responseBuffer, maxResponseLen)
}

resp, err := exec.awaitSecrets(exec.ctx, req)
if err != nil {
errStr := err.Error()
logger.Error(errStr)
return truncateWasmWrite(caller, []byte(errStr), responseBuffer, maxResponseLen)
return truncateWasmWriteErr(caller, []byte(errStr), responseBuffer, maxResponseLen)
}

respBytes, err := proto.Marshal(resp)
if err != nil {
errStr := err.Error()
logger.Error(errStr)
return truncateWasmWrite(caller, []byte(errStr), responseBuffer, maxResponseLen)
return truncateWasmWriteErr(caller, []byte(errStr), responseBuffer, maxResponseLen)
}

size := wasmWrite(caller, respBytes, responseBuffer, maxResponseLen)
if size == -1 {
errStr := ResponseBufferTooSmall
logger.Error(errStr)
return truncateWasmWrite(caller, []byte(errStr), responseBuffer, maxResponseLen)
return truncateWasmWriteErr(caller, []byte(errStr), responseBuffer, maxResponseLen)
}

return size
Expand Down
14 changes: 14 additions & 0 deletions pkg/workflows/wasm/host/standard_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -423,6 +423,20 @@ func TestStandardSecrets(t *testing.T) {
require.Equal(t, "Bar", result.GetValue().GetStringValue())
})

t.Run("returns an error when there are invalid UTF-8 bytes", func(t *testing.T) {
b := []byte{0xff, 0xfe, 0xfd} // invalid UTF-8 bytes
s := string(b)

result := runSecretTest(t, m, &sdk.SecretResponse{
Response: &sdk.SecretResponse_Secret{
Secret: &sdk.Secret{
Value: s,
},
},
})
require.Equal(t, "Bar", result.GetValue().GetStringValue(), result.GetError())
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maybe missing some parent test context, but where does the value "Bar" come from if this is expected to error?

})

t.Run("returns an error if the secret doesn't exist", func(t *testing.T) {
resp := runSecretTest(t, m, &sdk.SecretResponse{
Response: &sdk.SecretResponse_Error{
Expand Down
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