sol_parser_sdk/
rpc_parser.rs

1//! RPC Transaction Parser
2//!
3//! 提供独立的 RPC 交易解析功能，不依赖 gRPC streaming
4//! 可以用于测试验证和离线分析
5
6use crate::core::events::DexEvent;
7use crate::grpc::instruction_parser::parse_instructions_enhanced;
8use crate::grpc::types::EventTypeFilter;
9use crate::instr::read_pubkey_fast;
10use base64::{engine::general_purpose, Engine as _};
11use solana_client::rpc_client::RpcClient;
12use solana_client::rpc_config::RpcTransactionConfig;
13use solana_sdk::pubkey::Pubkey;
14use solana_sdk::signature::Signature;
15use solana_transaction_status::{
16    EncodedConfirmedTransactionWithStatusMeta, EncodedTransaction, UiTransactionEncoding,
17};
18use std::collections::HashMap;
19use std::str::FromStr;
20use yellowstone_grpc_proto::prelude::{
21    CompiledInstruction, InnerInstruction, InnerInstructions, Message, MessageAddressTableLookup,
22    MessageHeader, Transaction, TransactionStatusMeta,
23};
24
25/// Parse a transaction from RPC by signature
26///
27/// # Arguments
28/// * `rpc_client` - RPC client to fetch the transaction
29/// * `signature` - Transaction signature
30/// * `filter` - Optional event type filter
31///
32/// # Returns
33/// Vector of parsed DEX events
34///
35/// # Example
36/// ```no_run
37/// use solana_client::rpc_client::RpcClient;
38/// use solana_sdk::signature::Signature;
39/// use sol_parser_sdk::parse_transaction_from_rpc;
40/// use std::str::FromStr;
41///
42/// let client = RpcClient::new("https://api.mainnet-beta.solana.com".to_string());
43/// let sig = Signature::from_str("your-signature-here").unwrap();
44/// let events = parse_transaction_from_rpc(&client, &sig, None).unwrap();
45/// ```
46pub fn parse_transaction_from_rpc(
47    rpc_client: &RpcClient,
48    signature: &Signature,
49    filter: Option<&EventTypeFilter>,
50) -> Result<Vec<DexEvent>, ParseError> {
51    // Fetch transaction from RPC with V0 transaction support
52    let config = RpcTransactionConfig {
53        encoding: Some(UiTransactionEncoding::Base64),
54        commitment: None,
55        max_supported_transaction_version: Some(0),
56    };
57
58    let rpc_tx = rpc_client.get_transaction_with_config(signature, config).map_err(|e| {
59        let msg = e.to_string();
60        if msg.contains("invalid type: null") && msg.contains("EncodedConfirmedTransactionWithStatusMeta") {
61            ParseError::RpcError(format!(
62                "Transaction not found (RPC returned null). Common causes: 1) Transaction is too old and pruned (use an archive RPC). 2) Wrong network or invalid signature. Try SOLANA_RPC_URL with an archive endpoint (e.g. Helius, QuickNode) or a more recent tx. Original: {}",
63                msg
64            ))
65        } else {
66            ParseError::RpcError(msg)
67        }
68    })?;
69
70    parse_rpc_transaction(&rpc_tx, filter)
71}
72
73/// Parse a RPC transaction structure
74///
75/// # Arguments
76/// * `rpc_tx` - RPC transaction to parse
77/// * `filter` - Optional event type filter
78///
79/// # Returns
80/// Vector of parsed DEX events
81///
82/// # Example
83/// ```no_run
84/// use sol_parser_sdk::parse_rpc_transaction;
85///
86/// // Assuming you have an rpc_tx from RPC
87/// // let events = parse_rpc_transaction(&rpc_tx, None).unwrap();
88/// ```
89pub fn parse_rpc_transaction(
90    rpc_tx: &EncodedConfirmedTransactionWithStatusMeta,
91    filter: Option<&EventTypeFilter>,
92) -> Result<Vec<DexEvent>, ParseError> {
93    // Convert RPC format to gRPC format
94    let (grpc_meta, grpc_tx) = convert_rpc_to_grpc(rpc_tx)?;
95
96    // Extract metadata
97    let signature = extract_signature(rpc_tx)?;
98    let slot = rpc_tx.slot;
99    let block_time_us = rpc_tx.block_time.map(|t| t * 1_000_000);
100    let grpc_recv_us =
101        std::time::SystemTime::now().duration_since(std::time::UNIX_EPOCH).unwrap().as_micros()
102            as i64;
103
104    // Wrap grpc_tx in Option for reuse
105    let grpc_tx_opt = Some(grpc_tx);
106
107    let recent_blockhash = grpc_tx_opt.as_ref().and_then(|t| t.message.as_ref()).and_then(|m| {
108        if m.recent_blockhash.is_empty() {
109            None
110        } else {
111            Some(m.recent_blockhash.clone())
112        }
113    });
114
115    let mut program_invokes: HashMap<Pubkey, Vec<(i32, i32)>> = HashMap::new();
116
117    if let Some(ref tx) = grpc_tx_opt {
118        if let Some(ref msg) = tx.message {
119            let keys_len = msg.account_keys.len();
120            let writable_len = grpc_meta.loaded_writable_addresses.len();
121            let get_key = |i: usize| -> Option<&Vec<u8>> {
122                if i < keys_len {
123                    msg.account_keys.get(i)
124                } else if i < keys_len + writable_len {
125                    grpc_meta.loaded_writable_addresses.get(i - keys_len)
126                } else {
127                    grpc_meta.loaded_readonly_addresses.get(i - keys_len - writable_len)
128                }
129            };
130
131            for (i, ix) in msg.instructions.iter().enumerate() {
132                let pid = get_key(ix.program_id_index as usize)
133                    .map_or(Pubkey::default(), |k| read_pubkey_fast(k));
134                program_invokes.entry(pid).or_default().push((i as i32, -1));
135            }
136
137            for inner in &grpc_meta.inner_instructions {
138                let outer_idx = inner.index as usize;
139                for (j, inner_ix) in inner.instructions.iter().enumerate() {
140                    let pid = get_key(inner_ix.program_id_index as usize)
141                        .map_or(Pubkey::default(), |k| read_pubkey_fast(k));
142                    program_invokes.entry(pid).or_default().push((outer_idx as i32, j as i32));
143                }
144            }
145        }
146    }
147
148    // Parse instructions
149    let mut events = parse_instructions_enhanced(
150        &grpc_meta,
151        &grpc_tx_opt,
152        signature,
153        slot,
154        0, // tx_idx
155        block_time_us,
156        grpc_recv_us,
157        filter,
158    );
159
160    // Parse logs (for protocols like PumpFun that emit events in logs)
161    let needs_pumpfun = filter.map(|f| f.includes_pumpfun()).unwrap_or(true);
162    let is_created_buy = needs_pumpfun
163        && crate::logs::optimized_matcher::detect_pumpfun_create(&grpc_meta.log_messages);
164    let mut active_program_stack: Vec<Pubkey> = Vec::with_capacity(8);
165
166    for log in &grpc_meta.log_messages {
167        if let Some((pid, depth)) = crate::logs::optimized_matcher::parse_invoke_info(log) {
168            if let Ok(pk) = Pubkey::from_str(pid) {
169                active_program_stack.truncate(depth.saturating_sub(1));
170                active_program_stack.push(pk);
171            }
172        }
173
174        if let Some(mut event) = crate::logs::parse_log_with_program_id(
175            log,
176            signature,
177            slot,
178            0, // tx_index
179            block_time_us,
180            grpc_recv_us,
181            filter,
182            is_created_buy,
183            recent_blockhash.as_deref(),
184            active_program_stack.last(),
185        ) {
186            // Fill account fields - use same function as gRPC parsing
187            crate::core::account_dispatcher::fill_accounts_with_owned_keys(
188                &mut event,
189                &grpc_meta,
190                &grpc_tx_opt,
191                &program_invokes,
192            );
193
194            // Fill additional data fields (e.g., PumpSwap is_pump_pool)
195            crate::core::common_filler::fill_data(
196                &mut event,
197                &grpc_meta,
198                &grpc_tx_opt,
199                &program_invokes,
200            );
201
202            events.push(event);
203        }
204
205        if let Some(pid) = crate::logs::optimized_matcher::parse_program_complete_info(log) {
206            if let Ok(pk) = Pubkey::from_str(pid) {
207                if let Some(pos) = active_program_stack.iter().rposition(|active| *active == pk) {
208                    active_program_stack.truncate(pos);
209                }
210            }
211        }
212    }
213
214    crate::core::pumpfun_fee_enrich::enrich_pumpfun_same_tx_post_merge(&mut events);
215
216    Ok(events)
217}
218
219/// Parse error types
220#[derive(Debug)]
221pub enum ParseError {
222    RpcError(String),
223    ConversionError(String),
224    MissingField(String),
225}
226
227impl std::fmt::Display for ParseError {
228    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
229        match self {
230            ParseError::RpcError(msg) => write!(f, "RPC error: {}", msg),
231            ParseError::ConversionError(msg) => write!(f, "Conversion error: {}", msg),
232            ParseError::MissingField(msg) => write!(f, "Missing field: {}", msg),
233        }
234    }
235}
236
237impl std::error::Error for ParseError {}
238
239// ============================================================================
240// Internal conversion functions
241// ============================================================================
242
243fn extract_signature(
244    rpc_tx: &EncodedConfirmedTransactionWithStatusMeta,
245) -> Result<Signature, ParseError> {
246    let ui_tx = &rpc_tx.transaction.transaction;
247
248    match ui_tx {
249        EncodedTransaction::Binary(data, _encoding) => {
250            let bytes = general_purpose::STANDARD.decode(data).map_err(|e| {
251                ParseError::ConversionError(format!("Failed to decode base64: {}", e))
252            })?;
253
254            let versioned_tx: solana_sdk::transaction::VersionedTransaction =
255                bincode::deserialize(&bytes).map_err(|e| {
256                    ParseError::ConversionError(format!("Failed to deserialize transaction: {}", e))
257                })?;
258
259            Ok(versioned_tx.signatures[0])
260        }
261        _ => Err(ParseError::ConversionError("Unsupported transaction encoding".to_string())),
262    }
263}
264
265pub fn convert_rpc_to_grpc(
266    rpc_tx: &EncodedConfirmedTransactionWithStatusMeta,
267) -> Result<(TransactionStatusMeta, Transaction), ParseError> {
268    let rpc_meta = rpc_tx
269        .transaction
270        .meta
271        .as_ref()
272        .ok_or_else(|| ParseError::MissingField("meta".to_string()))?;
273
274    // Convert meta
275    let mut grpc_meta = TransactionStatusMeta {
276        err: None,
277        fee: rpc_meta.fee,
278        pre_balances: rpc_meta.pre_balances.clone(),
279        post_balances: rpc_meta.post_balances.clone(),
280        inner_instructions: Vec::new(),
281        log_messages: {
282            let opt: Option<Vec<String>> = rpc_meta.log_messages.clone().into();
283            opt.unwrap_or_default()
284        },
285        pre_token_balances: Vec::new(),
286        post_token_balances: Vec::new(),
287        rewards: Vec::new(),
288        loaded_writable_addresses: {
289            let loaded_opt: Option<solana_transaction_status::UiLoadedAddresses> =
290                rpc_meta.loaded_addresses.clone().into();
291            loaded_opt
292                .map(|addrs| {
293                    addrs
294                        .writable
295                        .iter()
296                        .map(|pk_str| {
297                            use std::str::FromStr;
298                            solana_sdk::pubkey::Pubkey::from_str(pk_str)
299                                .unwrap()
300                                .to_bytes()
301                                .to_vec()
302                        })
303                        .collect()
304                })
305                .unwrap_or_default()
306        },
307        loaded_readonly_addresses: {
308            let loaded_opt: Option<solana_transaction_status::UiLoadedAddresses> =
309                rpc_meta.loaded_addresses.clone().into();
310            loaded_opt
311                .map(|addrs| {
312                    addrs
313                        .readonly
314                        .iter()
315                        .map(|pk_str| {
316                            use std::str::FromStr;
317                            solana_sdk::pubkey::Pubkey::from_str(pk_str)
318                                .unwrap()
319                                .to_bytes()
320                                .to_vec()
321                        })
322                        .collect()
323                })
324                .unwrap_or_default()
325        },
326        return_data: None,
327        compute_units_consumed: rpc_meta.compute_units_consumed.clone().into(),
328
329        inner_instructions_none: {
330            let opt: Option<Vec<_>> = rpc_meta.inner_instructions.clone().into();
331            opt.is_none()
332        },
333        log_messages_none: {
334            let opt: Option<Vec<String>> = rpc_meta.log_messages.clone().into();
335            opt.is_none()
336        },
337        return_data_none: {
338            let opt: Option<solana_transaction_status::UiTransactionReturnData> =
339                rpc_meta.return_data.clone().into();
340            opt.is_none()
341        },
342        cost_units: rpc_meta.compute_units_consumed.clone().into(),
343    };
344
345    // Convert inner instructions
346    let inner_instructions_opt: Option<Vec<_>> = rpc_meta.inner_instructions.clone().into();
347    if let Some(ref inner_instructions) = inner_instructions_opt {
348        for inner in inner_instructions {
349            let mut grpc_inner =
350                InnerInstructions { index: inner.index as u32, instructions: Vec::new() };
351
352            for ix in &inner.instructions {
353                if let solana_transaction_status::UiInstruction::Compiled(compiled) = ix {
354                    // Decode base58 data
355                    let data = bs58::decode(&compiled.data).into_vec().map_err(|e| {
356                        ParseError::ConversionError(format!(
357                            "Failed to decode instruction data: {}",
358                            e
359                        ))
360                    })?;
361
362                    grpc_inner.instructions.push(InnerInstruction {
363                        program_id_index: compiled.program_id_index as u32,
364                        accounts: compiled.accounts.clone(),
365                        data,
366                        stack_height: compiled.stack_height,
367                    });
368                }
369            }
370
371            grpc_meta.inner_instructions.push(grpc_inner);
372        }
373    }
374
375    // Convert transaction
376    let ui_tx = &rpc_tx.transaction.transaction;
377
378    let (message, signatures) = match ui_tx {
379        EncodedTransaction::Binary(data, _encoding) => {
380            // Decode base64
381            let bytes = general_purpose::STANDARD.decode(data).map_err(|e| {
382                ParseError::ConversionError(format!("Failed to decode base64: {}", e))
383            })?;
384
385            // Parse as versioned transaction
386            let versioned_tx: solana_sdk::transaction::VersionedTransaction =
387                bincode::deserialize(&bytes).map_err(|e| {
388                    ParseError::ConversionError(format!("Failed to deserialize transaction: {}", e))
389                })?;
390
391            let sigs: Vec<Vec<u8>> =
392                versioned_tx.signatures.iter().map(|s| s.as_ref().to_vec()).collect();
393
394            let message = match versioned_tx.message {
395                solana_sdk::message::VersionedMessage::Legacy(legacy_msg) => {
396                    convert_legacy_message(&legacy_msg)?
397                }
398                solana_sdk::message::VersionedMessage::V0(v0_msg) => convert_v0_message(&v0_msg)?,
399            };
400
401            (message, sigs)
402        }
403        EncodedTransaction::Json(_) => {
404            return Err(ParseError::ConversionError(
405                "JSON encoded transactions not supported yet".to_string(),
406            ));
407        }
408        _ => {
409            return Err(ParseError::ConversionError(
410                "Unsupported transaction encoding".to_string(),
411            ));
412        }
413    };
414
415    let grpc_tx = Transaction { signatures, message: Some(message) };
416
417    Ok((grpc_meta, grpc_tx))
418}
419
420fn convert_legacy_message(
421    msg: &solana_sdk::message::legacy::Message,
422) -> Result<Message, ParseError> {
423    let account_keys: Vec<Vec<u8>> =
424        msg.account_keys.iter().map(|k| k.to_bytes().to_vec()).collect();
425
426    let instructions: Vec<CompiledInstruction> = msg
427        .instructions
428        .iter()
429        .map(|ix| CompiledInstruction {
430            program_id_index: ix.program_id_index as u32,
431            accounts: ix.accounts.clone(),
432            data: ix.data.clone(),
433        })
434        .collect();
435
436    Ok(Message {
437        header: Some(MessageHeader {
438            num_required_signatures: msg.header.num_required_signatures as u32,
439            num_readonly_signed_accounts: msg.header.num_readonly_signed_accounts as u32,
440            num_readonly_unsigned_accounts: msg.header.num_readonly_unsigned_accounts as u32,
441        }),
442        account_keys,
443        recent_blockhash: msg.recent_blockhash.to_bytes().to_vec(),
444        instructions,
445        versioned: false,
446        address_table_lookups: Vec::new(),
447    })
448}
449
450fn convert_v0_message(msg: &solana_sdk::message::v0::Message) -> Result<Message, ParseError> {
451    let account_keys: Vec<Vec<u8>> =
452        msg.account_keys.iter().map(|k| k.to_bytes().to_vec()).collect();
453
454    let instructions: Vec<CompiledInstruction> = msg
455        .instructions
456        .iter()
457        .map(|ix| CompiledInstruction {
458            program_id_index: ix.program_id_index as u32,
459            accounts: ix.accounts.clone(),
460            data: ix.data.clone(),
461        })
462        .collect();
463
464    Ok(Message {
465        header: Some(MessageHeader {
466            num_required_signatures: msg.header.num_required_signatures as u32,
467            num_readonly_signed_accounts: msg.header.num_readonly_signed_accounts as u32,
468            num_readonly_unsigned_accounts: msg.header.num_readonly_unsigned_accounts as u32,
469        }),
470        account_keys,
471        recent_blockhash: msg.recent_blockhash.to_bytes().to_vec(),
472        instructions,
473        versioned: true,
474        address_table_lookups: msg
475            .address_table_lookups
476            .iter()
477            .map(|lookup| MessageAddressTableLookup {
478                account_key: lookup.account_key.to_bytes().to_vec(),
479                writable_indexes: lookup.writable_indexes.clone(),
480                readonly_indexes: lookup.readonly_indexes.clone(),
481            })
482            .collect(),
483    })
484}
sol_parser_sdk/rpc_parser.rs

sol_parser_sdk/
rpc_parser.rs
