func lookup_field(msg *message.Message, fn string, fi int, ai int) (int,
unsafe.Pointer, int) {
var field *message.Field
if fi != 0 {
fields := msg.FindAllFields(fn)
if fi >= len(fields) {
return 0, unsafe.Pointer(nil), 0
}
field = fields[fi]
} else {
if field = msg.FindFirstField(fn); field == nil {
return 0, unsafe.Pointer(nil), 0
}
}
fieldType := int(field.GetValueType())
switch field.GetValueType() {
case message.Field_STRING:
if ai >= len(field.ValueString) {
return fieldType, unsafe.Pointer(nil), 0
}
value := field.ValueString[ai]
cs := C.CString(value) // freed by the caller
return fieldType, unsafe.Pointer(cs), len(value)
case message.Field_BYTES:
if ai >= len(field.ValueBytes) {
return fieldType, unsafe.Pointer(nil), 0
}
value := field.ValueBytes[ai]
return fieldType, unsafe.Pointer(&field.ValueBytes[ai][0]), len(value)
case message.Field_INTEGER:
if ai >= len(field.ValueInteger) {
return fieldType, unsafe.Pointer(nil), 0
}
return fieldType, unsafe.Pointer(&field.ValueInteger[ai]), 0
case message.Field_DOUBLE:
if ai >= len(field.ValueDouble) {
return fieldType, unsafe.Pointer(nil), 0
}
return fieldType, unsafe.Pointer(&field.ValueDouble[ai]), 0
case message.Field_BOOL:
if ai >= len(field.ValueBool) {
return fieldType, unsafe.Pointer(nil), 0
}
return fieldType, unsafe.Pointer(&field.ValueBool[ai]), 0
}
return 0, unsafe.Pointer(nil), 0
}
func getFieldAsString(msg *message.Message, mvar *messageVariable) string {
var field *message.Field
if mvar.fi != 0 {
fields := msg.FindAllFields(mvar.name)
if mvar.fi >= len(fields) {
return ""
}
field = fields[mvar.fi]
} else {
if field = msg.FindFirstField(mvar.name); field == nil {
return ""
}
}
switch field.GetValueType() {
case message.Field_STRING:
if mvar.ai >= len(field.ValueString) {
return ""
}
return field.ValueString[mvar.ai]
case message.Field_BYTES:
if mvar.ai >= len(field.ValueBytes) {
return ""
}
return string(field.ValueBytes[mvar.ai])
case message.Field_INTEGER:
if mvar.ai >= len(field.ValueInteger) {
return ""
}
return fmt.Sprintf("%d", field.ValueInteger[mvar.ai])
case message.Field_DOUBLE:
if mvar.ai >= len(field.ValueDouble) {
return ""
}
return fmt.Sprintf("%g", field.ValueDouble[mvar.ai])
case message.Field_BOOL:
if mvar.ai >= len(field.ValueBool) {
return ""
}
return fmt.Sprintf("%t", field.ValueBool[mvar.ai])
}
return ""
}
func TestInjectMessage(t *testing.T) {
var sbc SandboxConfig
tests := []string{
"lua types",
"cloudwatch metric",
"external reference",
"array only",
"private keys",
"special characters",
"message field all types",
"internal reference",
}
outputs := []string{
`{"value":1}1.2 string nil true false`,
`{"StatisticValues":[{"Minimum":0,"SampleCount":0,"Sum":0,"Maximum":0},{"Minimum":0,"SampleCount":0,"Sum":0,"Maximum":0}],"Dimensions":[{"Name":"d1","Value":"v1"},{"Name":"d2","Value":"v2"}],"MetricName":"example","Timestamp":0,"Value":0,"Unit":"s"}`,
`{"a":{"y":2,"x":1}}`,
`[1,2,3]`,
`{"x":1,"_m":1,"_private":[1,2]}`,
`{"special\tcharacters":"\"\t\r\n\b\f\\\/"}`,
"\x10\x80\x94\xeb\xdc\x03\x52\x13\x0a\x06\x6e\x75\x6d\x62\x65\x72\x10\x03\x39\x00\x00\x00\x00\x00\x00\xf0\x3f\x52\x2c\x0a\x07\x6e\x75\x6d\x62\x65\x72\x73\x10\x03\x1a\x05\x63\x6f\x75\x6e\x74\x3a\x18\x00\x00\x00\x00\x00\x00\xf0\x3f\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x08\x40\x52\x0e\x0a\x05\x62\x6f\x6f\x6c\x73\x10\x04\x42\x03\x01\x00\x00\x52\x0a\x0a\x04\x62\x6f\x6f\x6c\x10\x04\x40\x01\x52\x10\x0a\x06\x73\x74\x72\x69\x6e\x67\x22\x06\x73\x74\x72\x69\x6e\x67\x52\x15\x0a\x07\x73\x74\x72\x69\x6e\x67\x73\x22\x02\x73\x31\x22\x02\x73\x32\x22\x02\x73\x33",
`{"y":[2],"x":[1,2,3],"ir":[1,2,3]}`,
}
if false { // lua jit values
outputs[1] = `{"Timestamp":0,"Value":0,"StatisticValues":[{"SampleCount":0,"Sum":0,"Maximum":0,"Minimum":0},{"SampleCount":0,"Sum":0,"Maximum":0,"Minimum":0}],"Unit":"s","MetricName":"example","Dimensions":[{"Name":"d1","Value":"v1"},{"Name":"d2","Value":"v2"}]}`
}
sbc.ScriptFilename = "./testsupport/inject_message.lua"
sbc.MemoryLimit = 100000
sbc.InstructionLimit = 1000
sbc.OutputLimit = 8000
pack := getTestPack()
sb, err := lua.CreateLuaSandbox(&sbc)
if err != nil {
t.Errorf("%s", err)
}
err = sb.Init("", "")
if err != nil {
t.Errorf("%s", err)
}
cnt := 0
sb.InjectMessage(func(p, pt, pn string) int {
if len(pt) == 0 { // no type is a Heka protobuf message
if p[18:] != outputs[cnt] { // ignore the UUID
t.Errorf("Output is incorrect, expected: \"%x\" received: \"%x\"", outputs[cnt], p[18:])
}
} else {
if p != outputs[cnt] {
t.Errorf("Output is incorrect, expected: \"%s\" received: \"%s\"", outputs[cnt], p)
}
}
if cnt == 6 {
msg := new(message.Message)
err := proto.Unmarshal([]byte(p), msg)
if err != nil {
t.Errorf("%s", err)
}
if msg.GetTimestamp() != 1e9 {
t.Errorf("Timestamp expected %d received %d", int(1e9), pack.Message.GetTimestamp())
}
if field := msg.FindFirstField("numbers"); field != nil {
if field.GetRepresentation() != "count" {
t.Errorf("'numbers' representation expected count received %s", 1e9, field.GetRepresentation())
}
} else {
t.Errorf("'numbers' field not found")
}
tests := []string{
"Timestamp == 1000000000",
"Fields[number] == 1",
"Fields[numbers][0][0] == 1 && Fields[numbers][0][1] == 2 && Fields[numbers][0][2] == 3",
"Fields[string] == 'string'",
"Fields[strings][0][0] == 's1' && Fields[strings][0][1] == 's2' && Fields[strings][0][2] == 's3'",
"Fields[bool] == TRUE",
"Fields[bools][0][0] == TRUE && Fields[bools][0][1] == FALSE && Fields[bools][0][2] == FALSE",
}
for _, v := range tests {
ms, _ := message.CreateMatcherSpecification(v)
match := ms.Match(msg)
if !match {
t.Errorf("Test failed %s", v)
}
}
}
cnt++
return 0
})
for _, v := range tests {
pack.Message.SetPayload(v)
r := sb.ProcessMessage(pack)
if r != 0 {
t.Errorf("ProcessMessage should return 0, received %d %s", r, sb.LastError())
}
}
sb.Destroy("")
if cnt != len(tests) {
t.Errorf("InjectMessage was called %d times, expected %d", cnt, len(tests))
}
}