Merge pull request #4749 from mempool/mononaut/fake-p2wsh-goggles

Add fake p2wsh goggles

backend/src/api/common.ts

@@ -293,7 +293,6 @@ export class Common {
         }
         if (vout.value < (dustSize * DUST_RELAY_TX_FEE)) {
           // under minimum output size
-          console.log(`NON-STANDARD | dust | ${vout.value} | ${dustSize} ${dustSize * DUST_RELAY_TX_FEE} `, tx.txid);
           return true;
         }
       }
@@ -456,6 +455,8 @@ export class Common {
       flags |= TransactionFlags.no_rbf;
     }
     let hasFakePubkey = false;
+    let P2WSHCount = 0;
+    let olgaSize = 0;
     for (const vout of tx.vout) {
       switch (vout.scriptpubkey_type) {
         case 'p2pk': {
@@ -483,6 +484,20 @@ export class Common {
       if (vout.scriptpubkey_address) {
         reusedOutputAddresses[vout.scriptpubkey_address] = (reusedOutputAddresses[vout.scriptpubkey_address] || 0) + 1;
       }
+      if (vout.scriptpubkey_type === 'v0_p2wsh') {
+        if (!P2WSHCount) {
+          olgaSize = parseInt(vout.scriptpubkey.slice(4, 8), 16);
+        }
+        P2WSHCount++;
+        if (P2WSHCount === Math.ceil((olgaSize + 2) / 32)) {
+          const nullBytes = (P2WSHCount * 32) - olgaSize - 2;
+          if (vout.scriptpubkey.endsWith(''.padEnd(nullBytes * 2, '0'))) {
+            flags |= TransactionFlags.fake_scripthash;
+          }
+        }
+      } else {
+        P2WSHCount = 0;
+      }
       outValues[vout.value || Math.random()] = (outValues[vout.value || Math.random()] || 0) + 1;
     }
     if (hasFakePubkey) {

backend/src/api/database-migration.ts

@@ -7,7 +7,7 @@ import cpfpRepository from '../repositories/CpfpRepository';
 import { RowDataPacket } from 'mysql2';
 
 class DatabaseMigration {
-  private static currentVersion = 71;
+  private static currentVersion = 72;
   private queryTimeout = 3600_000;
   private statisticsAddedIndexed = false;
   private uniqueLogs: string[] = [];
@@ -606,6 +606,12 @@ class DatabaseMigration {
       await this.$executeQuery('ALTER TABLE `federation_txos` ADD emergencyKey TINYINT NOT NULL DEFAULT 0');
       await this.updateToSchemaVersion(71);
     }
+
+    if (databaseSchemaVersion < 72 && isBitcoin === true) {
+      // reindex Goggles flags for mined block templates above height 833000
+      await this.$executeQuery('UPDATE blocks_summaries SET version = 0 WHERE height >= 832000;');
+      await this.updateToSchemaVersion(72);
+    }
   }
 
   /**

backend/src/api/mempool.ts

@@ -107,6 +107,7 @@ class Mempool {
       if (config.MEMPOOL.CACHE_ENABLED && config.REDIS.ENABLED) {
         await redisCache.$addTransaction(this.mempoolCache[txid]);
       }
+      this.mempoolCache[txid].flags = Common.getTransactionFlags(this.mempoolCache[txid]);
     }
     if (config.MEMPOOL.CACHE_ENABLED && config.REDIS.ENABLED) {
       await redisCache.$flushTransactions();

backend/src/mempool.interfaces.ts

@@ -226,6 +226,7 @@ export const TransactionFlags = {
   op_return:                        0b00000001_00000000_00000000_00000000n,
   fake_pubkey:                      0b00000010_00000000_00000000_00000000n,
   inscription:                      0b00000100_00000000_00000000_00000000n,
+  fake_scripthash:                  0b00001000_00000000_00000000_00000000n,
   // heuristics
   coinjoin:                0b00000001_00000000_00000000_00000000_00000000n,
   consolidation:           0b00000010_00000000_00000000_00000000_00000000n,

frontend/src/app/shared/filters.utils.ts

@@ -40,6 +40,7 @@ export const TransactionFlags = {
   op_return:                        0b00000001_00000000_00000000_00000000n,
   fake_pubkey:                      0b00000010_00000000_00000000_00000000n,
   inscription:                      0b00000100_00000000_00000000_00000000n,
+  fake_scripthash:                  0b00001000_00000000_00000000_00000000n,
   // heuristics
   coinjoin:                0b00000001_00000000_00000000_00000000_00000000n,
   consolidation:           0b00000010_00000000_00000000_00000000_00000000n,
@@ -85,6 +86,7 @@ export const TransactionFilters: { [key: string]: Filter } = {
     op_return: { key: 'op_return', label: 'OP_RETURN', flag: TransactionFlags.op_return, important: true },
     fake_pubkey: { key: 'fake_pubkey', label: 'Fake pubkey', flag: TransactionFlags.fake_pubkey },
     inscription: { key: 'inscription', label: 'Inscription', flag: TransactionFlags.inscription, important: true },
+    fake_scripthash: { key: 'fake_scripthash', label: 'Fake scripthash', flag: TransactionFlags.fake_scripthash },
     /* heuristics */
     coinjoin: { key: 'coinjoin', label: 'Coinjoin', flag: TransactionFlags.coinjoin, important: true },
     consolidation: { key: 'consolidation', label: 'Consolidation', flag: TransactionFlags.consolidation },
@@ -101,7 +103,7 @@ export const FilterGroups: { label: string, filters: Filter[]}[] = [
   { label: 'Features', filters: ['rbf', 'no_rbf', 'v1', 'v2', 'v3', 'nonstandard'] },
   { label: 'Address Types', filters: ['p2pk', 'p2ms', 'p2pkh', 'p2sh', 'p2wpkh', 'p2wsh', 'p2tr'] },
   { label: 'Behavior', filters: ['cpfp_parent', 'cpfp_child', 'replacement', 'acceleration'] },
-  { label: 'Data', filters: ['op_return', 'fake_pubkey', 'inscription'] },
+  { label: 'Data', filters: ['op_return', 'fake_pubkey', 'fake_scripthash', 'inscription'] },
   { label: 'Heuristics', filters: ['coinjoin', 'consolidation', 'batch_payout'] },
   { label: 'Sighash Flags', filters: ['sighash_all', 'sighash_none', 'sighash_single', 'sighash_default', 'sighash_acp'] },
 ].map(group => ({ label: group.label, filters: group.filters.map(filter => TransactionFilters[filter] || null).filter(f => f != null) }));