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Send hardcoded tip for consensus check #292

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merged 2 commits into from
Jul 24, 2024
Merged

Send hardcoded tip for consensus check #292

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58d9c75
Send hardocoded (for now) tip data
gabrielbosio Jul 23, 2024
5374cbc
Adapt to new state size
gabrielbosio Jul 24, 2024
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43 changes: 36 additions & 7 deletions polling_service/parser/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,25 +4,40 @@ use kimchi::o1_utils::FieldHelpers;
use mina_curves::pasta::Fp;
use reqwest::header::CONTENT_TYPE;

const STATE_HASH_SIZE: usize = 32;
const PROTOCOL_STATE_SIZE: usize = 2056;

// TODO(gabrielbosio): These are temporary, we will fetch the tip from the Mina contract instead of using these hardcoded values.
const TIP_PROTOCOL_STATE: &str = "Va9U7YpJjxXGg9IcS2npo+3axwra34v/JNsZW+XS4SUC8DXQX42qQSBaswvRI1uKu+UuVUvMQxEO4trzXicENbvJbooTtatm3+9bq4Z/RGzArLJ5rhTc30sJHoNjGyMZIMJX9MI+K4l1eiTChYphL4+odqeBQ7kGXhI+fVAMVM6ZIFfL2sMs61cDhApcSSi8zR029wdYaVHpph9XZ0ZqwG6Hrl43zlIWHVtuilYPo0fQlp1ItzcbT6c7N6jHva3X/Q8lE7fiEW5jIVHePd3obQSIgeHm857pq8T4H9/pXQdyGznxIVaWPq4kH76XZEfaJWK6gAb32jjhbuQvrPQmGj8SHZ9V7Apwdx2Ux2EcmXDEk+IEayOtrLW8v5kzsjs1Eww1udUeXXx0FFb4ZyBzEkGoKAJzz8bCFmj9e8bFh9DMHQIdVMT8mfe3oP365vIUYuYqfX43NCHQR0u8b5rjy3UtAh1UxPyZ97eg/frm8hRi5ip9fjc0IdBHS7xvmuPLdS1sxnDlJh772cxIxYjNovS7KSfQWcCv0HDJjtaULmZBBgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAEwxNzpy3bMctvXJVb3iJc9xE2oE6SfRaXfK+97SZRDFYj3CzchWlcNJzqE8lngCUq4iXwcy7yIACrD6ZpJJBAqhsuA+bafTm3SZTS4sgevRUFahNf00prjrKs69LvnPB4CHVTE/Jn3t6D9+ubyFGLmKn1+NzQh0EdLvG+a48t1LWRf927TkBEYaGk9IZ3fcFZUXAnvOqgCyisv7IjDsS4VbMZw5SYe+9nMSMWIzaL0uykn0FnAr9BwyY7WlC5mQQYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABAAABHZ9V7Apwdx2Ux2EcmXDEk+IEayOtrLW8v5kzsjs1EwyI9ws3IVpXDSc6hPJZ4AlKuIl8HMu8iAAqw+maSSQQKvwAQLBGTwEAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD8wNgM5pABAAAgmowzZ75TWxff/nZTAemMaXQ4TBgrLlbuUCku9Aw53f394rEFAAMdCwEEAgMFAwQCAwMCIIelFLE7OpzaBMXCUq8pbJUGIusX3mx4noqZ4b/nEwAA/EG9qZbMT1EQAP5WXf7kGwD9VvoIACY9EcI8wwDk7SIR+P+we1ypqkYmkTQ/cru0cObh+QYr/EFBaiJ0gUMQIcTxtxPFJjpgmYFu9oQvo5mmPkfb8QrtpydnIjzdTyG80bmgeL7ljSGQdRDl6Cav6klIt2AC5Lmt1XzP5RmMAFe+grwJMx9Sy9Dh8YVM0lBzjqCEx5zq9r2kAhblYqU//r4PpYnWw5CTfPDHtsqXSoG0RF6ITuM1IIgJV7upWr8zXD38QblgSQzCTRBqRRmB0Da87xFFhlWVYAaqYE3wOWKs0l3pfqDnnUhmG4WMED/odD5FUo90d6VJf7m5ng+OysRzSJtog5ykdhgmVa9U7YpJjxXGg9IcS2npo+3axwra34v/JNsZW+XS4SX+RwUB0WiDnvvPm0OMlpbaiVi9y/86iTLi/0CEPuAjcFqsfjIB6eZmmJLgQh0VsTpNQxJwO6M+ANjEeItPGVJFHnyvUCABjRA0XVmv6t9a3AKtey/RHEtkbzQ9R8h7M3YUjDzpLDoBAf4iAf7kGwf+cAgA/AAEsuWPAQAA";
const TIP_STATE_HASH_FIELD: &str =
"26201757517054449641912404249424749469164718222967816857204695395894215860942";

pub fn parse_public_input(
rpc_url: &str,
proof_path: &str,
public_input_path: &str,
) -> Result<(), String> {
let response_value = query_to_mina_node(rpc_url)?;
let tip_state_hash_field = serialize_state_hash_field(TIP_STATE_HASH_FIELD)
.map_err(|err| format!("Error serializing tip's state hash field: {err}"))?;
let tip_protocol_state = serialize_protocol_state(TIP_PROTOCOL_STATE)
.map_err(|err| format!("Error serializing tip's protocol state: {err}"))?;

let last_block_value = query_last_block(rpc_url)?;

let proof = serialize_protocol_state_proof(&response_value)?;
let proof = serialize_protocol_state_proof(&last_block_value)?;

let mut public_input = serialize_state_hash_field(&response_value)?;
public_input.extend(serialize_protocol_state(&response_value)?);
let mut public_input = get_state_hash_field(&last_block_value)?;
public_input.extend(get_protocol_state(&last_block_value)?);
public_input.extend(tip_state_hash_field);
public_input.extend(tip_protocol_state);

fs::write(proof_path, proof)
.map_err(|err| format!("Error writing state proof to file: {err}"))?;
fs::write(public_input_path, public_input)
.map_err(|err| format!("Error writing public input to file: {err}"))
}

fn query_to_mina_node(rpc_url: &str) -> Result<serde_json::Value, String> {
fn query_last_block(rpc_url: &str) -> Result<serde_json::Value, String> {
let body = "{\"query\": \"{
protocolState(encoding: BASE64)
bestChain(maxLength: 1) {
Expand Down Expand Up @@ -50,7 +65,7 @@ fn query_to_mina_node(rpc_url: &str) -> Result<serde_json::Value, String> {
))
}

fn serialize_state_hash_field(response_value: &serde_json::Value) -> Result<Vec<u8>, String> {
fn get_state_hash_field(response_value: &serde_json::Value) -> Result<Vec<u8>, String> {
let state_hash_field_str = response_value
.get("bestChain")
.and_then(|d| d.get(0))
Expand All @@ -64,6 +79,11 @@ fn serialize_state_hash_field(response_value: &serde_json::Value) -> Result<Vec<
"Error converting state hash value to string: {:?}",
response_value,
))?;

serialize_state_hash_field(state_hash_field_str)
}

fn serialize_state_hash_field(state_hash_field_str: &str) -> Result<Vec<u8>, String> {
let state_hash_field = Fp::from_str(state_hash_field_str).map_err(|_| {
format!(
"Error converting state hash to field: {:?}",
Expand All @@ -72,10 +92,12 @@ fn serialize_state_hash_field(response_value: &serde_json::Value) -> Result<Vec<
})?;
let state_hash_field_bytes = state_hash_field.to_bytes();

debug_assert_eq!(state_hash_field_bytes.len(), STATE_HASH_SIZE);

Ok(state_hash_field_bytes)
}

fn serialize_protocol_state(response_value: &serde_json::Value) -> Result<Vec<u8>, String> {
fn get_protocol_state(response_value: &serde_json::Value) -> Result<Vec<u8>, String> {
let protocol_state_str = response_value
.get("protocolState")
.ok_or(format!(
Expand All @@ -87,8 +109,15 @@ fn serialize_protocol_state(response_value: &serde_json::Value) -> Result<Vec<u8
"Error converting protocol state value to string: {:?}",
response_value,
))?;

serialize_protocol_state(protocol_state_str)
}

fn serialize_protocol_state(protocol_state_str: &str) -> Result<Vec<u8>, String> {
let protocol_state_bytes = protocol_state_str.as_bytes().to_vec();

debug_assert_eq!(protocol_state_bytes.len(), PROTOCOL_STATE_SIZE);

Ok(protocol_state_bytes)
}

Expand Down