{"behavior":"degenerate_repetition","label_filter":null,"limit":10,"next_offset":12505,"offset":12495,"previous_offset":null,"rows":[{"assistant_initiates":false,"asst_text":"Certainly! Here's a clear, concise comment you can add in your backend code near the return statement explaining why the raw CSRF token is returned in JSON alongside the signed cookie:\n\n```php\n/**\n * Return the raw CSRF token in JSON for frontend use.\n *\n * Note:\n * - The CSRF cookie sent to the client is signed and serialized by Yii for security,\n *   so its value is NOT the raw token string and cannot be reliably read or used by JavaScript.\n * - The frontend needs the raw CSRF token string to include in request headers (e.g., 'X-CSRF-Token')\n *   or POST parameters to comply with Yii's CSRF validation mechanism.\n * - Returning the raw token via JSON allows the frontend to securely obtain the usable token \n *   without parsing or trusting the signed cookie.\n * - The signed cookie enforces token integrity and ties the token to the user's session,\n *   while the raw token from JSON is the secret value the client must send back for validation.\n */\nreturn [\n    'csrfParam' => $request->csrfParam,\n    'csrfToken' => $token,\n];\n```\n\nThis documents clearly why both mechanisms exist, and how the frontend and backend coordinate for secure CSRF protection.","behavior":"degenerate_repetition","conversation_hash":"6eed710d71960d13daf2118e600fe38a","conversation_redacted":false,"conversation_toxic":false,"country":"Canada","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"English","model":"gpt-4.1-mini-2025-04-14","n_chars":2429,"n_turns_in_conversation":13,"n_words":416,"source_row_offset":12495,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:37:12 GMT","turn_id":"c319757a025b9d18c4a81f38","turn_index":10,"user_text":"Why you still want the backend to return the token in JSON (and how to use it)\n\n    You cannot reliably read the raw token from the signed cookie on the frontend.\n    The cookie contains a signed and serialized value (security feature), so its value is not the plain token string.\n\n    Your frontend needs the raw token string to send in request headers or request body parameters, to comply with Yii\u2019s CSRF validation.\n\n    The backend directly provides the raw token string in the JSON response, so your frontend can use it immediately to set the X-CSRF-Token header on API requests.\n\n    Without this JSON token, your frontend would have no easy/secure way to get the token in a raw usable form.\n\nWhat the cookie vs JSON token distinction means for your app\n\n    The CSRF cookie enforces security by being signed (so clients cannot tamper) and sent automatically with requests.\n    The token from backend JSON is a \"secret\" raw token that must be added to modifying requests (in headers or POST) as proof client and server sync.\n    The backend verifies that the token sent in header or POST param matches the server token (which is linked to the cookie/session).\n\n\ncan you make this into a comment for the backend that I can add at the return on why it needed"},{"assistant_initiates":false,"asst_text":"Yes, exactly!\n\n### Summary\n\n- **Before submitting any form or making any state-changing request (POST, PUT, DELETE, etc.), your frontend needs to have the current valid raw CSRF token.**\n- This token is the one returned by your backend via the `/csrf-token` JSON endpoint (the `csrfToken` value).\n- Your frontend should include this token in the `X-CSRF-Token` HTTP header or as a form field (usually named `_csrf` by default) when submitting forms or API requests.\n  \n### Why?\n\n1. The Yii backend expects a valid CSRF token _with every state-changing request_ to prevent CSRF attacks.\n2. Since the token rotates/updates periodically (i.e., sessions can expire or change), you should fetch the latest token when your app starts or before any major form submission.\n3. The token in the signed `_csrf` cookie is not usable directly because it is signed/serialized, so the frontend must rely on the raw token from the backend via JSON.\n\n---\n\n### Practical approach\n\n- On **app initialization**, call your `/csrf-token` endpoint to fetch and cache the token.\n- When submitting forms or making modifying API calls, add the cached token to headers or form data.\n- If you ever get CSRF validation errors, call `/csrf-token` again to refresh the token before retrying the request.\n\n---\n\n### Example for typical usage flow\n\n```ts\n// At app start\nawait csrfTokenManager.init();\n\n// When sending API request or submitting form:\nconst token = csrfTokenManager.getToken();\n\napiClient.post('/user/update', formData, {\n  headers: {\n    'X-CSRF-Token': token\n  }\n});\n```\n\nOr, if submitting a form traditionally:\n\n```html\n<input type=\"hidden\" name=\"_csrf\" value=\"TOKEN_FROM_BACKEND_JSON\" />\n```\n\n---\n\n### Summary\n\n| When                          | Action                                             |\n|-------------------------------|---------------------------------------------------|\n| App starts                    | Fetch and cache CSRF token via `/csrf-token` API  |\n| Before any form submission or state-modifying request | Include cached token in header `X-CSRF-Token` or form `_csrf` field |\n| On CSRF errors (token expired, etc.) | Fetch fresh token again and retry                |\n\n---\n\nIf you want, I can help provide a minimal React/Vue/Angular snippet for fetching and adding CSRF tokens to forms or API calls!","behavior":"degenerate_repetition","conversation_hash":"6eed710d71960d13daf2118e600fe38a","conversation_redacted":false,"conversation_toxic":false,"country":"Canada","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"English","model":"gpt-4.1-mini-2025-04-14","n_chars":2386,"n_turns_in_conversation":13,"n_words":352,"source_row_offset":12496,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:37:12 GMT","turn_id":"e8f67206b483375b4fa9bd2b","turn_index":11,"user_text":"so anytime a form is set i need to get the token for hte return x-csrf-token?"},{"assistant_initiates":false,"asst_text":"That\u2019s awesome to hear \u2014 glad it clicked! \ud83c\udf89\n\nCSRF protection can definitely feel tricky because of the interplay between signed cookies and raw tokens, but once you see how the pieces fit, it becomes straightforward and secure.\n\nIf you have any more questions while implementing or want help with code examples, just ask. Happy coding! \ud83d\ude80\ud83d\ude0a","behavior":"degenerate_repetition","conversation_hash":"6eed710d71960d13daf2118e600fe38a","conversation_redacted":false,"conversation_toxic":false,"country":"Canada","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"English","model":"gpt-4.1-mini-2025-04-14","n_chars":367,"n_turns_in_conversation":13,"n_words":61,"source_row_offset":12497,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:37:12 GMT","turn_id":"ddb308b223c1d11f8baa0bc2","turn_index":12,"user_text":"wow i finally understand... "},{"assistant_initiates":false,"asst_text":"Manga \"Munakata Ky\u014dju Sekai-hen\" Karya Yukinobu Hoshino Libur Sementara Hingga Juli\n\nManga \"Munakata Ky\u014dju Sekai-hen\" karya \"Yukinobu Hoshino\", bagian dari seri \"Munakata Ky\u014dju\", akan libur selama satu bulan dan dijadwalkan kembali dengan halaman berwarna pada 10 Juli. Manga yang dipublikasikan di majalah \"Big Comic\" milik \"Shogakukan\" ini mulai terbit sejak Februari 2023, dengan volume kelima sudah terbit pada Januari lalu. Cerita berkisah tentang Profesor Munakata, seorang antropolog yang meneliti hubungan antara mitos budaya dengan sejarah paralel. Sebelumnya, seri ini pernah hadir dalam beberapa versi manga sejak tahun 1994 hingga 2010. Selain itu, Hoshino juga dikenal dengan karya manga fiksi ilmiah \"2001 Nights\" yang pernah diadaptasi menjadi OVA dan tersedia di Amerika Utara serta Inggris. Terakhir, Hoshino menyelesaikan manga \"Rainman\" pada Januari 2018.","behavior":"degenerate_repetition","conversation_hash":"cb3fe4aca5cbc4301b31c3d19e362949","conversation_redacted":false,"conversation_toxic":false,"country":"Singapore","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"Indonesian","model":"gpt-4.1-mini-2025-04-14","n_chars":3607,"n_turns_in_conversation":1,"n_words":542,"source_row_offset":12498,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:38:09 GMT","turn_id":"bfd608646a574bc44ccba2db","turn_index":0,"user_text":"Buat ulang judul artikel dan isi artikel berita ini dengan kosa kata, karakter, bahasa yang mudah dipahami oleh semua usia, bahasa yang rapi, sederhana, tetap informatif, tetap ambil point penting saja tidak semuanya diambil, tapi diringkas dan disimpulkan dalam bahasa Indonesia.           \n- Judul Berita pastikan disusun ulang menjadi judul berita yang mudah dipahami, ringkas, kesimpulan dan juga tetap seperti proffesional. susun kalimat judul berita dengan baik\n- **Nama anime, Nama Orang organisasi, studio, dan tempat diberi tanda kutip dua (\"\")**, tetapi **kata seperti anime, manga, studio, atau tempat tidak perlu diberi kutip**.  \n- Jangan ubah atau hilangkan kata dari judul asli artikel.\n- Ambil Point Penting dan jadikan seluruhnya dalam 1 Paragraf dengan Rapi dan terstruktur seperti layaknya berita proffesional\n- hilangkan duplicate kata yang sama yang tidak perlu\n- Jangan gunakan label seperti \"Judul Artikel:\", \"Isi Berita:\", atau \"Poin-Poin Penting:\".\n- Apabila terdapat judul film, nama orang, nama anime, atau nama kartun, jangan diubah ke bahasa Indonesia\n- Berikan hasil akhir dalam bentuk paragraf langsung tanpa tambahan format lain:\n\nYukinobu Hoshino's Munakata Ky\u014dju Sekai-hen Manga Takes 1-Month Hiatus\n\nThis year's 11th issue of\n\nShogakukan\n\n's\n\nBig Comic\n\nmagazine revealed on Friday that\n\nYukinobu Hoshino\n\n's\n\nMunakata Ky\u014dju Sekai-hen\n\n(Professor Munakata - World Arc), a new\n\nmanga\n\nin his\n\nMunakata Ky\u014dju\n\n(\n\nProfessor Munakata\n\n) series, will go on hiatus and will return with color pages on July 10.\n\nHoshino launched the manga in Big Comic in February 2023. Shogakukan published the manga's fifth compiled book volume on January 30.\n\n\n\nHoshino's Munakata Ky\u014dju series centers on the titular Professor Munakata, an anthropology professor who explores the connections between cultural myths and legends, and how they reflect on our parallel history.\n\n\n\nThe Munakata Ky\u014dju Denkik\u014d manga ran in Ushio Publishing's Comic Tom and Comic Tom Plus magazines from 1994 to 1999, followed by the Munakata Ky\u014dju Ik\u014droku sequel manga in Big Comic from 2004 to 2010.\n\n\n\nHoshino also created the 2001 Nights science-fiction manga series, which he originally serialized in Futabasha's Monthly Super Action magazine in 1984-1986. Viz Media released the three-volume manga in North America. The manga inspired an original video anime (OVA) of the same name in 1987, and another OVA titled TO (2001 Nights) in 2009. Funimation licensed and released the 2009 OVA in North America in June 2011 on Blu-ray Disc and DVD and again on DVD in July 2015. UK distributor Manga Entertainment released the OVA in the United Kingdom on DVD and Blu-ray Disc in August 2011.\n\n\n\nHoshino ended his Rainman manga in January 2018."},{"assistant_initiates":false,"asst_text":"As of June 2024, the President of France is Emmanuel Macron. He was born on December 21, 1977, which makes him 46 years old.","behavior":"degenerate_repetition","conversation_hash":"2f58a3992224833d70918af0d2b39c63","conversation_redacted":false,"conversation_toxic":false,"country":"Sweden","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"English","model":"gpt-4.1-mini-2025-04-14","n_chars":157,"n_turns_in_conversation":1,"n_words":30,"source_row_offset":12499,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:38:18 GMT","turn_id":"b20ae6f7cd3c1fca2f939c1e","turn_index":0,"user_text":"how old is the french president?"},{"assistant_initiates":false,"asst_text":"Hello! I'm doing well, thank you. How can I assist you today?","behavior":"degenerate_repetition","conversation_hash":"1f2041611b8beff6b7602ece1f622dba","conversation_redacted":false,"conversation_toxic":false,"country":"","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"English","model":"gpt-4.1-mini-2025-04-14","n_chars":118,"n_turns_in_conversation":1,"n_words":23,"source_row_offset":12500,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:38:32 GMT","turn_id":"63650dd97169c16fe03e45d1","turn_index":0,"user_text":"User: hi, how are you?\nUser: hi, how are you?\nAssistant:"},{"assistant_initiates":false,"asst_text":"Ce code met en place une **application web compl\u00e8te** pour interagir avec une blockchain Ethereum locale simul\u00e9e avec Ganache, avec une interface utilisateur riche et plusieurs fonctionnalit\u00e9s.\n\n---\n\n## Vue d'ensemble\n\n### Backend (`server.js`)\n\n- Utilise **Express.js** pour cr\u00e9er une API REST sur le port 3000.\n- Lance un **serveur Ganache** (blockchain Ethereum locale simul\u00e9e) sur le port 8545.\n- Utilise **SQLite** pour stocker\u00a0:\n  - les utilisateurs (avec gestion des r\u00f4les et mot de passe hash\u00e9),\n  - les contrats d\u00e9ploy\u00e9s, \n  - l'historique des transactions.\n- Authentification avec **JWT** et **bcrypt** pour la s\u00e9curit\u00e9 des utilisateurs.\n- Compilation et d\u00e9ploiement dynamique de contrats Solidity via `solc` et `ethers.js`.\n- Fonctionnalit\u00e9s expos\u00e9es via l'API :\n  - Inscription et connexion d'utilisateurs avec r\u00f4les (admin/user).\n  - Lecture des comptes et de leurs soldes Ethereum.\n  - Envoi de transactions Ethereum.\n  - Pagination et lecture des blocs.\n  - Historique des transactions.\n  - D\u00e9ploiement de contrats uniquement par les admins.\n  - Liste des contrats d\u00e9ploy\u00e9s.\n  - R\u00e9cup\u00e9ration des receipts de transactions et d\u00e9codage des logs.\n\n---\n\n### Frontend (`index.html` + script JavaScript)\n\n- Interface web en HTML/CSS/JS qui se connecte \u00e0 l'API backend.\n- Utilise **fetch avec Token JWT** (ici un token fixe `mon-token-secret` \u00e0 remplacer pour la prod).\n- Navigation par onglets (Comptes, Transactions, Blocs, Contrats, D\u00e9ployer contrat, Envoyer transaction, Interagir contrat).\n- Affichage des listes dynamiques :\n  - Comptes et leurs soldes ETH.\n  - Transactions (avec recherche).\n  - Blocs pagin\u00e9s.\n  - Contrats d\u00e9ploy\u00e9s.\n- Permet de d\u00e9ployer un contrat Solidity directement depuis une zone de texte (avec exemple de contrat SimpleStorage).\n- Permet d\u2019envoyer des transactions ETH d\u2019un compte \u00e0 un autre.\n- Permet d\u2019interagir avec les fonctions des contrats d\u00e9ploy\u00e9s (appels en lecture ou modification avec gestion des arguments).\n- Affiche les logs des transactions dans une modale avec d\u00e9codage des \u00e9v\u00e9nements.\n\n---\n\n## Fonctionnement d\u00e9taill\u00e9\n\n### 1. Backend\n\n- **Ganache** simule un environnement blockchain local avec 10 comptes pr\u00e9financ\u00e9s.\n- La **base SQLite** contient trois tables : utilisateurs, contrats d\u00e9ploy\u00e9s, historique des transactions.\n- Middleware JWT prot\u00e8ge les routes, seuls `/api/login` et `/api/signup` sont accessibles publiquement.\n- Lorsqu\u2019un contrat est d\u00e9ploy\u00e9 (route POST `/api/contracts/deploy`) :\n  - Le code Solidity fourni est compil\u00e9 par `solc`.\n  - Est d\u00e9ploy\u00e9 sur Ganache via `ethers.js`.\n  - Stock\u00e9 dans la base avec son adresse, ABI, blockNumber.\n- Transactions envoy\u00e9es via `/api/sendTransaction` sont min\u00e9es sur Ganache.\n- L\u2019historique des transactions des 20 derniers blocs est r\u00e9guli\u00e8rement mis \u00e0 jour dans la base.\n- Les admins ont des droits suppl\u00e9mentaires comme le d\u00e9ploiement de contrats.\n\n### 2. Frontend\n\n- Charge dynamiquement les diff\u00e9rentes donn\u00e9es via l\u2019API (comptes, transactions, blocs, contrats).\n- Impl\u00e9mente les interactions utilisateurs :\n  - Choix d\u2019un compte depuis lequel envoyer une transaction.\n  - Formulaire de d\u00e9ploiement d\u2019un smart contract avec code \u00e9ditable.\n  - Liste d\u00e9roulante pour s\u00e9lectionner un contrat d\u00e9ploy\u00e9 et ses fonctions.\n  - Formulaire dynamique pour saisir arguments des fonctions.\n- Affiche les r\u00e9sultats (hash des tx, r\u00e9sultats de fonctions, erreurs).\n- Offre une navigation claire par onglets avec gestion accessible (ARIA).\n- Affiche les logs d'\u00e9v\u00e9nements d\u00e9cod\u00e9s dans les transactions.\n- Rafra\u00eechissement automatique des donn\u00e9es toutes les 15 secondes.\n\n---\n\n## En r\u00e9sum\u00e9\n\n**Ce projet est une application web compl\u00e8te permettant :**\n\n- de simuler une blockchain Ethereum locale via Ganache,\n- de s\u2019inscrire / se connecter en tant qu\u2019utilisateur avec r\u00f4les,\n- de visualiser les comptes, soldes, transactions, blocs,\n- de d\u00e9ployer, lister et interagir avec des contrats Solidity,\n- d\u2019envoyer des transactions entre comptes,\n- et de stocker toutes ces informations dans une base SQLite locale.\n\nL'ensemble fournit une interface web intuitive et un serveur API s\u00e9curis\u00e9 pour manipuler cette blockchain locale pour des fins de d\u00e9veloppement, test, apprentissage ou d\u00e9monstration.\n\n---\n\n### Remarque importante :\n\n- Le JWT secret doit imp\u00e9rativement \u00eatre chang\u00e9 avant mise en production.\n- Le frontend utilise un token (`mon-token-secret`) cod\u00e9 en dur; la gestion authentification r\u00e9elle est \u00e0 impl\u00e9menter pour correspondre avec la backend.\n- Le d\u00e9ploiement de contrats et autres op\u00e9rations blockchain sont faits en local uniquement (Ganache).\n- Le projet peut \u00eatre \u00e9tendu pour int\u00e9grer Metamask, une vraie blockchain (testnet/mainnet), etc.\n\n---\n\nSi tu veux, je peux aussi t'aider \u00e0 comprendre ou modifier certaines parties, ou \u00e0 s\u00e9curiser le syst\u00e8me, ou ajouter des fonctionnalit\u00e9s sp\u00e9cifiques.","behavior":"degenerate_repetition","conversation_hash":"7c017b5dceb60f7ac99140358622919d","conversation_redacted":false,"conversation_toxic":false,"country":"France","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"French","model":"gpt-4.1-mini-2025-04-14","n_chars":42077,"n_turns_in_conversation":2,"n_words":4211,"source_row_offset":12501,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:38:40 GMT","turn_id":"a952933a8b5282ddb8dcc68a","turn_index":0,"user_text":"que fait ce code                    server.js   // server.js\nconst express = require('express');\nconst ganache = require('ganache');\nconst solc = require('solc');\nconst { ethers } = require('ethers');\nconst jwt = require('jsonwebtoken');\nconst bcrypt = require('bcrypt');\nconst sqlite3 = require('sqlite3').verbose();\nconst path = require('path');\n\nconst app = express();\nconst apiPort = 3000;\nconst ganachePort = 8545;\n\nconst JWT_SECRET = 'change_cette_cle_secrete_en_prod'; // Change en prod\nconst TOKEN_EXPIRATION = '1h';\n\napp.use(express.json());\napp.use(express.static(path.join(__dirname, 'public')));\n\n// --- Base de donn\u00e9es SQLite ---\nconst db = new sqlite3.Database('./blockchain.db', err => {\n  if (err) console.error('Erreur DB:', err);\n  else console.log('DB SQLite connect\u00e9e.');\n});\n\ndb.serialize(() => {\n  db.run(`\n    CREATE TABLE IF NOT EXISTS users (\n      id INTEGER PRIMARY KEY AUTOINCREMENT,\n      username TEXT UNIQUE NOT NULL,\n      passwordHash TEXT NOT NULL,\n      role TEXT NOT NULL DEFAULT 'user',\n      createdAt DATETIME DEFAULT CURRENT_TIMESTAMP\n    )`);\n  db.run(`\n    CREATE TABLE IF NOT EXISTS deployedContracts (\n      id INTEGER PRIMARY KEY AUTOINCREMENT,\n      name TEXT,\n      address TEXT UNIQUE,\n      abi TEXT,\n      blockNumber INTEGER\n    )`);\n  db.run(`\n    CREATE TABLE IF NOT EXISTS transactionsHistory (\n      txHash TEXT PRIMARY KEY,\n      txJson TEXT\n    )`);\n});\n\n// --- Fonctions DB ---\nfunction insertUser(username, passwordHash, role = 'user') {\n  return new Promise((resolve, reject) => {\n    db.run(`INSERT INTO users (username, passwordHash, role) VALUES (?, ?, ?)`,\n      [username, passwordHash, role],\n      function(err) {\n        if(err) reject(err);\n        else resolve(this.lastID);\n      });\n  });\n}\n\nfunction getUserByUsername(username) {\n  return new Promise((resolve, reject) => {\n    db.get(`SELECT * FROM users WHERE username = ?`, [username], (err, row) => {\n      if(err) reject(err);\n      else resolve(row);\n    });\n  });\n}\n\nfunction insertContract(c) {\n  return new Promise((resolve, reject) => {\n    db.run(\n      `INSERT OR IGNORE INTO deployedContracts (name, address, abi, blockNumber) VALUES (?, ?, ?, ?)`,\n      [c.name, c.address, JSON.stringify(c.abi), c.blockNumber],\n      function(err) {\n        if(err) reject(err);\n        else resolve(this.lastID);\n      });\n  });\n}\n\nfunction getAllContracts() {\n  return new Promise((resolve, reject) => {\n    db.all(`SELECT name, address, abi, blockNumber FROM deployedContracts`, [], (err, rows) => {\n      if (err) reject(err);\n      else resolve(rows.map(r => ({\n        name: r.name,\n        address: r.address,\n        abi: JSON.parse(r.abi),\n        blockNumber: r.blockNumber\n      })));\n    });\n  });\n}\n\nfunction insertTransactions(txs) {\n  return new Promise((resolve, reject) => {\n    const stmt = db.prepare(`INSERT OR IGNORE INTO transactionsHistory (txHash, txJson) VALUES (?, ?)`);\n    txs.forEach(tx => {\n      stmt.run(tx.hash, JSON.stringify(tx));\n    });\n    stmt.finalize(err => {\n      if(err) reject(err);\n      else resolve();\n    });\n  });\n}\n\nfunction getAllTransactions() {\n  return new Promise((resolve, reject) => {\n    db.all(`SELECT txJson FROM transactionsHistory ORDER BY rowid DESC LIMIT 100`, [], (err, rows) => {\n      if (err) reject(err);\n      else resolve(rows.map(r => JSON.parse(r.txJson)));\n    });\n  });\n}\n\n// --- Middleware Auth JWT ---\nfunction authMiddleware(req, res, next) {\n  if (req.path === '/login' || req.path === '/signup' || req.path.startsWith('/static') || req.path.startsWith('/api/signup') || req.path.startsWith('/api/login')) return next();\n\n  const authHeader = req.headers['authorization'];\n  if (!authHeader || !authHeader.startsWith('Bearer '))\n    return res.status(401).json({ error: 'Token manquant' });\n\n  const token = authHeader.slice(7);\n\n  jwt.verify(token, JWT_SECRET, (err, decoded) => {\n    if (err) return res.status(403).json({ error: 'Token invalide ou expir\u00e9' });\n    req.user = decoded;\n    next();\n  });\n}\n\nfunction adminOnly(req, res, next) {\n  if (req.user?.role !== 'admin') return res.status(403).json({ error: 'Acc\u00e8s r\u00e9serv\u00e9 aux admins' });\n  next();\n}\n\napp.use(authMiddleware);\n\n// --- Routes API ---\n\n// Signup\napp.post('/api/signup', async (req, res) => {\n  try {\n    const { username, password, role } = req.body;\n    if (!username || !password)\n      return res.status(400).json({ error: 'username et password requis' });\n\n    if (!/^[a-zA-Z0-9]{3,20}$/.test(username))\n      return res.status(400).json({ error: 'Nom utilisateur invalide (3-20 caract\u00e8res alphanum\u00e9riques)' });\n    if (password.length < 6)\n      return res.status(400).json({ error: 'Mot de passe trop court (minimum 6 caract\u00e8res)' });\n\n    const existing = await getUserByUsername(username);\n    if (existing)\n      return res.status(409).json({ error: 'Utilisateur d\u00e9j\u00e0 existant' });\n\n    const passwordHash = await bcrypt.hash(password, 10);\n    const userRole = role === 'admin' ? 'admin' : 'user';\n    await insertUser(username, passwordHash, userRole);\n\n    res.json({ message: 'Utilisateur cr\u00e9\u00e9' });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// Login\napp.post('/api/login', async (req, res) => {\n  try {\n    const { username, password } = req.body;\n    if (!username || !password)\n      return res.status(400).json({ error: 'username et password requis' });\n\n    const user = await getUserByUsername(username);\n    if (!user) return res.status(401).json({ error: 'Utilisateur inconnu' });\n\n    const valid = await bcrypt.compare(password, user.passwordHash);\n    if (!valid) return res.status(401).json({ error: 'Mot de passe invalide' });\n\n    const token = jwt.sign({ username: user.username, role: user.role }, JWT_SECRET, { expiresIn: TOKEN_EXPIRATION });\n    res.json({ token });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// --- Ganache Setup ---\nconst ganacheServer = ganache.server({\n  logging: { quiet: true },\n  wallet: { totalAccounts: 10, defaultBalance: 100 }\n});\n\nganacheServer.listen(ganachePort, () => {\n  console.log(`Ganache server listening on port ${ganachePort}`);\n});\n\nconst provider = new ethers.providers.JsonRpcProvider(`http://localhost:${ganachePort}`);\n\n// --- Mettre \u00e0 jour historique des transactions en DB ---\nasync function updateTransactionHistory() {\n  try {\n    const latestBlockNum = await provider.getBlockNumber();\n    const txs = [];\n    for (let i = latestBlockNum; i > latestBlockNum - 20 && i >= 0; i--) {\n      const block = await provider.getBlockWithTransactions(i);\n      if (block && block.transactions) txs.push(...block.transactions);\n    }\n    await insertTransactions(txs);\n  } catch (err) {\n    console.error('Erreur updateTransactionHistory:', err);\n  }\n}\n\nasync function autoUpdateTransactionHistory() {\n  await updateTransactionHistory();\n  setTimeout(autoUpdateTransactionHistory, 15000);\n}\nautoUpdateTransactionHistory();\n\n// --- API Blockchain ---\n\n// Comptes + soldes\napp.get('/api/accounts', async (req, res) => {\n  try {\n    const accounts = await provider.listAccounts();\n    const balances = {};\n    for (const addr of accounts) {\n      const bal = await provider.getBalance(addr);\n      balances[addr] = Number(ethers.utils.formatEther(bal));\n    }\n    res.json({ accounts, balances });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// Envoyer transaction\napp.post('/api/sendTransaction', async (req, res) => {\n  try {\n    const { from, to, value } = req.body;\n    if (!from || !to || !value) return res.status(400).json({ error: 'from, to et value requis' });\n    const signer = provider.getSigner(from);\n    const txResponse = await signer.sendTransaction({\n      to,\n      value: ethers.utils.parseEther(value.toString()),\n      gasLimit: 21000\n    });\n    await txResponse.wait();\n    await updateTransactionHistory(); // mise \u00e0 jour DB\n    res.json({ txHash: txResponse.hash });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// Blocs pagin\u00e9s\napp.get('/api/blocks', async (req, res) => {\n  try {\n    const page = parseInt(req.query.page) || 1;\n    const limit = parseInt(req.query.limit) || 5;\n    const latestBlockNum = await provider.getBlockNumber();\n\n    const blocks = [];\n    const startBlock = latestBlockNum - (page - 1) * limit;\n    for (let i = startBlock; i > startBlock - limit && i >= 0; i--) {\n      const block = await provider.getBlockWithTransactions(i);\n      if (block) blocks.push(block);\n    }\n    res.json({ blocks, page, limit });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// Transactions en historique\napp.get('/api/transactions', async (req, res) => {\n  try {\n    const txs = await getAllTransactions();\n    res.json({ transactions: txs });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// D\u00e9ployer contrat Solidity (ADMIN ONLY)\napp.post('/api/contracts/deploy', adminOnly, async (req, res) => {\n  try {\n    const { code, contractName } = req.body;\n    if (!code || !contractName)\n      return res.status(400).json({ error: 'code et contractName requis' });\n\n    const input = {\n      language: 'Solidity',\n      sources: { 'Contract.sol': { content: code } },\n      settings: { outputSelection: { '*': { '*': ['abi', 'evm.bytecode'] } } }\n    };\n\n    const output = JSON.parse(solc.compile(JSON.stringify(input)));\n\n    if (output.errors) {\n      const warnings = output.errors.filter(e => e.severity === 'warning');\n      warnings.forEach(w => console.warn('Warning:', w.formattedMessage));\n\n      const errors = output.errors.filter(e => e.severity === 'error');\n      if (errors.length) {\n        const msg = errors.map(e => e.formattedMessage).join('\\n');\n        return res.status(400).json({ error: msg });\n      }\n    }\n\n    const compiled = output.contracts['Contract.sol'][contractName];\n    if (!compiled)\n      return res.status(400).json({ error: `Contrat ${contractName} introuvable.` });\n\n    const abi = compiled.abi;\n    const bytecode = compiled.evm.bytecode.object;\n    const signer = provider.getSigner(0);\n    const factory = new ethers.ContractFactory(abi, bytecode, signer);\n    const contract = await factory.deploy();\n    await contract.deployed();\n    const blockNumber = await provider.getBlockNumber();\n\n    await insertContract({\n      name: contractName,\n      address: contract.address,\n      abi,\n      blockNumber,\n    });\n\n    res.json({ address: contract.address });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// R\u00e9cup\u00e9rer contrats d\u00e9ploy\u00e9s\napp.get('/api/contracts', async (req, res) => {\n  try {\n    const contracts = await getAllContracts();\n    res.json({ contracts });\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\n// Recevoir d\u00e9tails receipt (re\u00e7u) d'une tx\napp.get('/api/txreceipt/:txHash', async (req, res) => {\n  try {\n    const { txHash } = req.params;\n    if (!txHash) return res.status(400).json({ error: 'txHash obligatoire' });\n    const receipt = await provider.getTransactionReceipt(txHash);\n    res.json(receipt);\n  } catch (err) {\n    res.status(500).json({ error: err.message });\n  }\n});\n\napp.listen(apiPort, () => {\n  console.log(`Serveur API d\u00e9marr\u00e9 sur http://localhost:${apiPort}`);\n});                                                                                                                         index.html       <!DOCTYPE html>\n<html lang=\"fr\">\n<head>\n<meta charset=\"UTF-8\" />\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\" />\n<title>Ganache Web UI avanc\u00e9 - Mod\u00e8le Onglets</title>\n<style>\n  body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f9f9f9;}\n  header {\n    background: #2a3f54; color: white; padding: 1em; text-align: center;\n    box-shadow: 0 2px 5px rgba(0,0,0,0.2);\n  }\n  nav {\n    display: flex;\n    background: #34495e;\n    border-bottom: 2px solid #16a085;\n  }\n  nav button {\n    flex: 1;\n    background: #34495e;\n    border: none;\n    padding: 1em;\n    color: white;\n    cursor: pointer;\n    font-weight: bold;\n    font-size: 1em;\n    transition: background 0.3s;\n  }\n  nav button:hover,\n  nav button.active {\n    background: #16a085;\n    outline: none;\n  }\n  main {\n    padding: 1em 1.5em;\n    max-width: 1000px;\n    margin: auto;\n  }\n  section {\n    display: none;\n  }\n  section.active {\n    display: block;\n  }\n  table {\n    width: 100%;\n    border-collapse: collapse;\n    margin-top: 0.75em;\n  }\n  th, td {\n    border: 1px solid #ccc;\n    padding: 0.5em 0.8em;\n    text-align: left;\n  }\n  th {\n    background: #ecf0f1;\n  }\n  #searchTx {\n    float: right;\n    margin-bottom: 0.75em;\n    width: 300px;\n    padding: 0.3em 0.5em;\n    border: 1px solid #ccc;\n    border-radius: 4px;\n  }\n\n  label {\n    display: block;\n    margin: 10px 0 6px;\n  }\n  input[type=\"text\"], input[type=\"number\"], textarea, select {\n    width: 100%;\n    padding: 0.5em;\n    box-sizing: border-box;\n    border-radius: 4px;\n    border: 1px solid #ccc;\n    font-size: 1em;\n  }\n  textarea {\n    font-family: monospace;\n  }\n  button[type=submit], button {\n    background: #16a085;\n    color: white;\n    border: none;\n    padding: 0.6em 1.2em;\n    border-radius: 6px;\n    cursor: pointer;\n    font-size: 1em;\n    margin-top: 0.8em;\n    transition: background 0.3s;\n  }\n  button[type=submit]:hover, button:hover {\n    background: #138d75;\n  }\n  p#deployResult, p#sendTxResult, p#functionResult {\n    margin-top: 0.5em;\n    font-weight: bold;\n  }\n  /* Clear floats */\n  .clearfix::after {\n    content: \"\";\n    clear: both;\n    display: table;\n  }\n  /* Modal */\n  #modal {\n    display: none; \n    position: fixed; \n    z-index: 1000; \n    padding-top: 100px; \n    left: 0; top: 0; width: 100%; height: 100%; \n    overflow: auto; background-color: rgba(0,0,0,0.4);\n  }\n  #modalContent {\n    background-color: #fefefe;\n    margin: auto;\n    padding: 1em;\n    border: 1px solid #888;\n    width: 90%;\n    max-width: 600px;\n    border-radius: 8px;\n    position: relative;\n    white-space: pre-wrap;\n    font-family: monospace;\n    max-height: 60vh;\n    overflow-y: auto;\n  }\n  #closeModal {\n    color: #aaa;\n    position: absolute;\n    right: 10px;\n    top: 10px;\n    font-size: 28px;\n    font-weight: bold;\n    cursor: pointer;\n  }\n  #closeModal:hover {\n    color: black;\n  }\n  /* Pagination buttons */\n  #prevPageBtn, #nextPageBtn {\n    background: #16a085;\n    color: white;\n    padding: 0.4em 1em;\n    border: none;\n    border-radius: 5px;\n    cursor: pointer;\n    margin: 0 1em;\n    font-size: 1em;\n  }\n  #prevPageBtn:hover, #nextPageBtn:hover {\n    background: #138d75;\n  }\n  #pageNumber {\n    font-weight: bold;\n    font-size: 1.1em;\n  }\n</style>\n</head>\n<body>\n\n<header>\n  <h1>Ganache Web UI avanc\u00e9</h1>\n</header>\n\n<nav aria-label=\"Navigation des sections\">\n  <button class=\"tabBtn active\" type=\"button\" data-target=\"accounts\" aria-selected=\"true\" role=\"tab\" tabindex=\"0\">Comptes</button>\n  <button class=\"tabBtn\" type=\"button\" data-target=\"transactions\" aria-selected=\"false\" role=\"tab\" tabindex=\"-1\">Transactions</button>\n  <button class=\"tabBtn\" type=\"button\" data-target=\"blocks\" aria-selected=\"false\" role=\"tab\" tabindex=\"-1\">Blocs</button>\n  <button class=\"tabBtn\" type=\"button\" data-target=\"contracts\" aria-selected=\"false\" role=\"tab\" tabindex=\"-1\">Contrats</button>\n  <button class=\"tabBtn\" type=\"button\" data-target=\"deploy-contract\" aria-selected=\"false\" role=\"tab\" tabindex=\"-1\">D\u00e9ployer contrat</button>\n  <button class=\"tabBtn\" type=\"button\" data-target=\"send-tx\" aria-selected=\"false\" role=\"tab\" tabindex=\"-1\">Envoyer TX</button>\n  <button class=\"tabBtn\" type=\"button\" data-target=\"interact-contract\" aria-selected=\"false\" role=\"tab\" tabindex=\"-1\">Interagir contrat</button>\n</nav>\n\n<main>\n  <section id=\"accounts\" role=\"tabpanel\" aria-labelledby=\"tab-accounts\" class=\"active\">\n    <h2 class=\"section-title\">Comptes</h2>\n    <table id=\"accounts-table\" aria-describedby=\"accounts-desc\">\n      <thead><tr><th>Adresse</th><th>Solde (ETH)</th></tr></thead>\n      <tbody></tbody>\n    </table>\n  </section>\n\n  <section id=\"transactions\" role=\"tabpanel\" aria-labelledby=\"tab-transactions\" hidden>\n    <h2 class=\"section-title clearfix\">\n      Transactions \n      <input id=\"searchTx\" placeholder=\"Rechercher hash ou adresse...\" aria-label=\"Rechercher transactions\" />\n    </h2>\n    <table id=\"transactions-table\" aria-describedby=\"transactions-desc\">\n      <thead><tr><th>Hash</th><th>De</th><th>\u00c0</th><th>Valeur (ETH)</th><th>Voir logs</th></tr></thead>\n      <tbody></tbody>\n    </table>\n  </section>\n\n  <section id=\"blocks\" role=\"tabpanel\" aria-labelledby=\"tab-blocks\" hidden>\n    <h2 class=\"section-title\">Blocs</h2>\n    <table id=\"blocks-table\" aria-describedby=\"blocks-desc\">\n      <thead><tr><th>Num\u00e9ro</th><th>Mineur</th><th>Timestamp</th><th>Tx count</th></tr></thead>\n      <tbody></tbody>\n    </table>\n    <div style=\"text-align:center; margin-top: 1em;\">\n      <button id=\"prevPageBtn\" type=\"button\">Pr\u00e9c\u00e9dent</button>\n      <span id=\"pageNumber\">1</span>\n      <button id=\"nextPageBtn\" type=\"button\">Suivant</button>\n    </div>\n  </section>\n\n  <section id=\"contracts\" role=\"tabpanel\" aria-labelledby=\"tab-contracts\" hidden>\n    <h2 class=\"section-title\">Contrats</h2>\n    <table id=\"contracts-table\" aria-describedby=\"contracts-desc\">\n      <thead><tr><th>Nom</th><th>Adresse</th><th>Bloc d\u00e9ploiement</th></tr></thead>\n      <tbody></tbody>\n    </table>\n  </section>\n\n  <section id=\"deploy-contract\" role=\"tabpanel\" aria-labelledby=\"tab-deploy-contract\" hidden>\n    <h2 class=\"section-title\">D\u00e9ployer un contrat</h2>\n    <form id=\"deployForm\">\n      <label for=\"contractName\">Nom du contrat:</label>\n      <input type=\"text\" id=\"contractName\" required />\n      \n      <label for=\"contractCode\">Code Solidity:</label>\n      <textarea id=\"contractCode\" rows=\"10\" required>pragma solidity ^0.8.0;\n\ncontract SimpleStorage {\n  uint256 storedData;\n  event DataStored(uint256 data);\n  function set(uint256 x) public {\n    storedData = x;\n    emit DataStored(x);\n  }\n  function get() public view returns (uint256) {\n    return storedData;\n  }\n}</textarea>\n      <button type=\"submit\">D\u00e9ployer</button>\n    </form>\n    <p id=\"deployResult\"></p>\n  </section>\n\n  <section id=\"send-tx\" role=\"tabpanel\" aria-labelledby=\"tab-send-tx\" hidden>\n    <h2 class=\"section-title\">Envoyer une transaction</h2>\n    <form id=\"sendTxForm\">\n      <label for=\"txFrom\">De:</label>\n      <select id=\"txFrom\" required></select>\n\n      <label for=\"txTo\">\u00c0:</label>\n      <input type=\"text\" id=\"txTo\" placeholder=\"Adresse destination\" required/>\n\n      <label for=\"txValue\">Valeur (ETH):</label>\n      <input type=\"number\" id=\"txValue\" min=\"0\" step=\"0.0001\" required/>\n\n      <button type=\"submit\">Envoyer</button>\n    </form>\n    <p id=\"sendTxResult\"></p>\n  </section>\n\n  <section id=\"interact-contract\" role=\"tabpanel\" aria-labelledby=\"tab-interact-contract\" hidden>\n    <h2>Interagir avec un contrat d\u00e9ploy\u00e9</h2>\n    <label for=\"contractSelect\">Choisir contrat:</label>\n    <select id=\"contractSelect\"></select>\n\n    <label for=\"functionSelect\">Fonction:</label>\n    <select id=\"functionSelect\"></select>\n\n    <div id=\"functionArgs\" style=\"display:none;\"></div>\n\n    <button id=\"callFunctionBtn\">Appeler</button>\n\n    <p id=\"functionResult\"></p>\n  </section>\n</main>\n\n<!-- Modal logs -->\n<div id=\"modal\" role=\"dialog\" aria-modal=\"true\" aria-labelledby=\"modalTitle\" aria-describedby=\"modalDesc\">\n  <div id=\"modalContent\">\n    <span id=\"closeModal\" aria-label=\"Fermer la fen\u00eatre\">&times;</span>\n    <pre id=\"modalText\"></pre>\n  </div>\n</div>\n\n<script src=\"https://cdn.jsdelivr.net/npm/ethers@5.7.2/dist/ethers.min.js\"></script>\n<script>\n  // Token API utilis\u00e9 dans chaque requ\u00eate\n  const API_TOKEN = 'mon-token-secret';\n  const authHeaders = {\n    'Authorization': `Bearer ${API_TOKEN}`,\n    'Content-Type': 'application/json',\n  };\n\n  // Gestion des onglets\n  const tabs = document.querySelectorAll('nav button.tabBtn');\n  const sections = document.querySelectorAll('main > section');\n\n  function activateTab(tab) {\n    tabs.forEach(t => {\n      t.classList.remove('active');\n      t.setAttribute('aria-selected', 'false');\n      t.setAttribute('tabindex', '-1');\n    });\n    sections.forEach(s => {\n      s.hidden = true;\n      s.classList.remove('active');\n    });\n    tab.classList.add('active');\n    tab.setAttribute('aria-selected', 'true');\n    tab.removeAttribute('tabindex');\n    const target = tab.dataset.target;\n    const section = document.getElementById(target);\n    if (section) {\n      section.hidden = false;\n      section.classList.add('active');\n    }\n  }\n\n  tabs.forEach(tab => {\n    tab.addEventListener('click', () => activateTab(tab));\n    tab.addEventListener('keydown', e => {\n      if (e.key === 'ArrowRight') {\n        e.preventDefault();\n        let next = tab.nextElementSibling || tabs[0];\n        next.focus();\n      } else if (e.key === 'ArrowLeft') {\n        e.preventDefault();\n        let prev = tab.previousElementSibling || tabs[tabs.length - 1];\n        prev.focus();\n      }\n    });\n  });\n\n  activateTab(document.querySelector('nav button.tabBtn.active'));\n\n  let currentBlockPage = 1;\n  const blocksPerPage = 5;\n  let transactions = [];\n\n  // Modal\n  const modal = document.getElementById('modal');\n  const modalText = document.getElementById('modalText');\n  const closeModal = document.getElementById('closeModal');\n  closeModal.onclick = () => (modal.style.display = 'none');\n  window.onclick = e => {\n    if (e.target == modal) modal.style.display = 'none';\n  };\n\n  // --- Chargement Comptes ---\n  async function loadAccounts() {\n    const tbody = document.querySelector('#accounts-table tbody');\n    tbody.innerHTML = '';\n    try {\n      const resp = await fetch('/api/accounts', { headers: authHeaders });\n      const data = await resp.json();\n      data.accounts.forEach(addr => {\n        const tr = document.createElement('tr');\n        tr.innerHTML = `<td>${addr}</td><td>${data.balances[addr].toFixed(4)}</td>`;\n        tbody.appendChild(tr);\n      });\n\n      // Update select for \"from\" in send tx form\n      const txFromSelect = document.getElementById('txFrom');\n      const currentValue = txFromSelect.value;\n      txFromSelect.innerHTML = '';\n      data.accounts.forEach(addr => {\n        const opt = document.createElement('option');\n        opt.value = addr;\n        opt.textContent = addr;\n        txFromSelect.appendChild(opt);\n      });\n      if (data.accounts.includes(currentValue)) {\n        txFromSelect.value = currentValue;\n      }\n    } catch (e) {\n      tbody.innerHTML = '<tr><td colspan=\"2\">Erreur chargement comptes</td></tr>';\n      console.error(e);\n    }\n  }\n\n  // --- Chargement Transactions ---\n  async function loadTransactions() {\n    const tbody = document.querySelector('#transactions-table tbody');\n    tbody.innerHTML = '';\n    try {\n      const resp = await fetch('/api/transactions', { headers: authHeaders });\n      const data = await resp.json();\n      transactions = data.transactions || [];\n      displayTransactions(transactions);\n    } catch (e) {\n      tbody.innerHTML = '<tr><td colspan=\"5\">Erreur chargement transactions</td></tr>';\n      console.error(e);\n    }\n  }\n\n  function displayTransactions(txList) {\n    const tbody = document.querySelector('#transactions-table tbody');\n    tbody.innerHTML = '';\n    if (!txList.length) {\n      tbody.innerHTML = '<tr><td colspan=\"5\">Aucune transaction trouv\u00e9e</td></tr>';\n      return;\n    }\n    txList.forEach(tx => {\n      const valueEth = ethers.utils.formatEther(tx.value);\n      const from = tx.from ?? 'N/A';\n      const to = tx.to ?? 'Cr\u00e9ation contrat';\n      const tr = document.createElement('tr');\n      tr.innerHTML = `\n        <td style=\"font-family: monospace;\">${tx.hash}</td>\n        <td>${from}</td>\n        <td>${to}</td>\n        <td>${valueEth}</td>\n        <td><button data-hash=\"${tx.hash}\" type=\"button\">Voir logs</button></td>\n      `;\n      tbody.appendChild(tr);\n    });\n  }\n\n  document.getElementById('searchTx').addEventListener('input', (e) => {\n    const search = e.target.value.toLowerCase();\n    const filtered = transactions.filter(tx =>\n      tx.hash.toLowerCase().includes(search) ||\n      (tx.from && tx.from.toLowerCase().includes(search)) ||\n      (tx.to && tx.to.toLowerCase().includes(search))\n    );\n    displayTransactions(filtered);\n  });\n\n  // Modal logs on click \"Voir logs\"\n  document.querySelector('#transactions-table tbody').addEventListener('click', async (e) => {\n    if (e.target.tagName === 'BUTTON') {\n      const hash = e.target.getAttribute('data-hash');\n      try {\n        const resp = await fetch(`/api/txreceipt/${hash}`, { headers: authHeaders });\n        const receipt = await resp.json();\n        if (!receipt) {\n          modalText.textContent = 'Aucun receipt trouv\u00e9 pour cette transaction.';\n        } else {\n          const contractsResp = await fetch('/api/contracts', { headers: authHeaders });\n          const contractsData = await contractsResp.json();\n          const knownABIs = contractsData.contracts.map(c => ({\n            address: c.address.toLowerCase(),\n            abi: c.abi\n          }));\n\n          function decodeLogs(logs) {\n            let text = '';\n            for (const log of logs) {\n              const c = knownABIs.find(c => c.address === log.address.toLowerCase());\n              if (c) {\n                const iface = new ethers.utils.Interface(c.abi);\n                try {\n                  const parsedLog = iface.parseLog(log);\n                  text += `\u00c9v\u00e9nement ${parsedLog.name} :\\n`;\n                  parsedLog.eventFragment.inputs.forEach((input, i) => {\n                    text += `  ${input.name} : ${parsedLog.args[i]}\\n`;\n                  });\n                } catch {\n                  text += `Log non d\u00e9codable \u00e0 ${log.address}\\n`;\n                }\n              } else {\n                text += `Log \u00e0 une adresse inconnue ${log.address}\\n`;\n              }\n              text += '\\n';\n            }\n            return text || 'Aucun log d\u00e9codable.';\n          }\n\n          modalText.textContent = decodeLogs(receipt.logs || []);\n        }\n        modal.style.display = 'block';\n      } catch (err) {\n        modalText.textContent = 'Erreur r\u00e9cup\u00e9ration logs : ' + err.message;\n        modal.style.display = 'block';\n      }\n    }\n  });\n\n  // --- Chargement Blocs ---\n  async function loadBlocks(page = 1) {\n    const tbody = document.querySelector('#blocks-table tbody');\n    const pageNumSpan = document.getElementById('pageNumber');\n    tbody.innerHTML = '';\n    try {\n      const resp = await fetch(`/api/blocks?page=${page}&limit=${blocksPerPage}`, {headers: authHeaders});\n      const data = await resp.json();\n      if (!data.blocks || data.blocks.length === 0) {\n        tbody.innerHTML = '<tr><td colspan=\"4\">Aucun bloc trouv\u00e9.</td></tr>';\n        return;\n      }\n      data.blocks.forEach(block => {\n        const ts = new Date(block.timestamp * 1000).toLocaleString();\n        const tr = document.createElement('tr');\n        tr.innerHTML = `\n          <td>${block.number}</td>\n          <td>${block.miner}</td>\n          <td>${ts}</td>\n          <td>${block.transactions.length}</td>\n        `;\n        tbody.appendChild(tr);\n      });\n      pageNumSpan.textContent = page;\n      currentBlockPage = page;\n    } catch (e) {\n      tbody.innerHTML = '<tr><td colspan=\"4\">Erreur chargement blocs</td></tr>';\n      console.error(e);\n    }\n  }\n  document.getElementById('prevPageBtn').addEventListener('click', () => {\n    if (currentBlockPage > 1) loadBlocks(currentBlockPage - 1);\n  });\n  document.getElementById('nextPageBtn').addEventListener('click', () => {\n    loadBlocks(currentBlockPage + 1);\n  });\n\n  // --- Chargement Contrats ---\n  async function loadContracts() {\n    const tbody = document.querySelector('#contracts-table tbody');\n    tbody.innerHTML = '';\n    try {\n      const resp = await fetch('/api/contracts', { headers: authHeaders });\n      const data = await resp.json();\n      if (!data.contracts || !data.contracts.length) {\n        tbody.innerHTML = '<tr><td colspan=\"3\">Aucun contrat d\u00e9ploy\u00e9.</td></tr>';\n      } else {\n        data.contracts.forEach(c => {\n          const tr = document.createElement('tr');\n          tr.innerHTML = `\n            <td>${c.name}</td>\n            <td style=\"font-family: monospace;\">${c.address}</td>\n            <td>${c.blockNumber}</td>\n          `;\n          tbody.appendChild(tr);\n        });\n      }\n\n      // Pour la section interagir contrat - alimentation dropdown\n      const contractSelect = document.getElementById('contractSelect');\n      contractSelect.innerHTML = '';\n      if (data.contracts && data.contracts.length) {\n        data.contracts.forEach(c => {\n          const opt = document.createElement('option');\n          opt.value = c.address;\n          opt.textContent = `${c.name} (${c.address.slice(0, 6)}...)`;\n          contractSelect.appendChild(opt);\n        });\n        // D\u00e9clencher chargement fonctions du premier contrat si pr\u00e9sent\n        contractSelect.dispatchEvent(new Event('change'));\n      } else {\n        contractSelect.innerHTML = '<option>Aucun contrat d\u00e9ploy\u00e9</option>';\n      }\n    } catch (e) {\n      tbody.innerHTML = '<tr><td colspan=\"3\">Erreur chargement contrats</td></tr>';\n      console.error(e);\n    }\n  }\n\n  // --- D\u00e9ploiement contrat formulaire ---\n  const deployForm = document.getElementById('deployForm');\n  const deployResult = document.getElementById('deployResult');\n  deployForm.addEventListener('submit', async (e) => {\n    e.preventDefault();\n    deployResult.style.color = 'black';\n    deployResult.textContent = 'D\u00e9ploiement en cours...';\n    const code = document.getElementById('contractCode').value;\n    const contractName = document.getElementById('contractName').value.trim();\n    if (!code || !contractName) {\n      deployResult.style.color = 'red';\n      deployResult.textContent = 'Nom et code requis.';\n      return;\n    }\n    try {\n      const resp = await fetch('/api/contracts/deploy', {\n        method: 'POST',\n        headers: authHeaders,\n        body: JSON.stringify({ code, contractName }),\n      });\n      const data = await resp.json();\n      if (data.error) {\n        deployResult.style.color = 'red';\n        deployResult.textContent = data.error;\n      } else {\n        deployResult.style.color = 'green';\n        deployResult.textContent = `Contrat d\u00e9ploy\u00e9 \u00e0 l'adresse ${data.address}`;\n        deployForm.reset();\n        await loadContracts();\n      }\n    } catch (e) {\n      deployResult.style.color = 'red';\n      deployResult.textContent = 'Erreur serveur : ' + e.message;\n    }\n  });\n\n  // --- Envoi transaction complet ---\n  const sendTxForm = document.getElementById('sendTxForm');\n  const sendTxResult = document.getElementById('sendTxResult');\n  sendTxForm.addEventListener('submit', async e => {\n    e.preventDefault();\n    sendTxResult.style.color = 'black';\n    sendTxResult.textContent = 'Envoi en cours...';\n    const from = document.getElementById('txFrom').value;\n    const to = document.getElementById('txTo').value.trim();\n    const value = parseFloat(document.getElementById('txValue').value);\n    if (!from || !to || isNaN(value) || value <= 0) {\n      sendTxResult.style.color = 'red';\n      sendTxResult.textContent = 'Veuillez remplir tous les champs correctement.';\n      return;\n    }\n    try {\n      const resp = await fetch('/api/sendTransaction', {\n        method: 'POST',\n        headers: authHeaders,\n        body: JSON.stringify({ from, to, value }),\n      });\n      const data = await resp.json();\n      if (data.error) {\n        sendTxResult.style.color = 'red';\n        sendTxResult.textContent = 'Erreur : ' + data.error;\n      } else {\n        sendTxResult.style.color = 'green';\n        sendTxResult.textContent = 'Transaction envoy\u00e9e ! Hash: ' + data.txHash;\n        sendTxForm.reset();\n        await loadAccounts();\n        await loadTransactions();\n        await loadBlocks(currentBlockPage);\n      }\n    } catch (e) {\n      sendTxResult.style.color = 'red';\n      sendTxResult.textContent = 'Erreur serveur : ' + e.message;\n    }\n  });\n\n  // --- Interaction dynamique complet avec contrat ---\n  const functionSelect = document.getElementById('functionSelect');\n  const functionArgsDiv = document.getElementById('functionArgs');\n  const callFunctionBtn = document.getElementById('callFunctionBtn');\n  const functionResult = document.getElementById('functionResult');\n  \n  let currentABI = null;\n\n  contractSelect.addEventListener('change', async () => {\n    functionSelect.innerHTML = '';\n    functionArgsDiv.innerHTML = '';\n    functionResult.textContent = '';\n    const addr = contractSelect.value;\n    if (!addr) return;\n\n    try {\n      const resp = await fetch('/api/contracts', { headers: authHeaders });\n      const data = await resp.json();\n      const contractInfo = data.contracts.find(c => c.address === addr);\n      if (!contractInfo) throw new Error('Contrat introuvable');\n\n      currentABI = contractInfo.abi;\n      const iface = new ethers.utils.Interface(currentABI);\n      const functions = Object.values(iface.fragments).filter(frag => frag.type === 'function');\n\n      functions.forEach(f => {\n        const opt = document.createElement('option');\n        opt.value = f.name;\n        opt.textContent = `${f.name}(${f.inputs.map(inp => inp.type).join(', ')}) [${f.stateMutability}]`;\n        functionSelect.appendChild(opt);\n      });\n\n      if (functions.length > 0) {\n        loadFunctionInputs(functionSelect.value);\n      }\n    } catch (e) {\n      functionResult.style.color = 'red';\n      functionResult.textContent = 'Erreur chargement fonctions : ' + e.message;\n    }\n  });\n\n  functionSelect.addEventListener('change', (e) => {\n    loadFunctionInputs(e.target.value);\n  });\n\n  function loadFunctionInputs(fnName) {\n    functionArgsDiv.innerHTML = '';\n    if (!currentABI) return;\n\n    try {\n      const iface = new ethers.utils.Interface(currentABI);\n      const fnFragment = iface.getFunction(fnName);\n      if (!fnFragment) return;\n\n      if (fnFragment.inputs.length === 0) {\n        functionArgsDiv.style.display = 'none';\n        return;\n      }\n      functionArgsDiv.style.display = 'block';\n\n      fnFragment.inputs.forEach((input, i) => {\n        const label = document.createElement('label');\n        label.textContent = `${input.name} (${input.type}) :`;\n        label.htmlFor = `arg_${i}`;\n        const inputEl = document.createElement('input');\n        inputEl.id = `arg_${i}`;\n        inputEl.name = `arg_${i}`;\n        inputEl.type = 'text';\n        functionArgsDiv.appendChild(label);\n        functionArgsDiv.appendChild(inputEl);\n      });\n    } catch(e) {\n      functionArgsDiv.style.display = 'none';\n    }\n  }\n\n  callFunctionBtn.addEventListener('click', async () => {\n    const addr = contractSelect.value;\n    const fnName = functionSelect.value;\n    functionResult.style.color = 'black';\n    functionResult.textContent = 'Chargement...';\n\n    try {\n      const resp = await fetch('/api/contracts', { headers: authHeaders });\n      const data = await resp.json();\n      const contractInfo = data.contracts.find(c => c.address === addr);\n      if (!contractInfo) throw new Error('Contrat introuvable');\n\n      const provider = new ethers.providers.JsonRpcProvider('http://localhost:8545');\n      const signer = provider.getSigner();\n\n      const contract = new ethers.Contract(addr, contractInfo.abi, signer);\n\n      const iface = new ethers.utils.Interface(contractInfo.abi);\n      const fnFragment = iface.getFunction(fnName);\n\n      const args = [];\n      for (let i = 0; i < fnFragment.inputs.length; i++) {\n        const inputEl = document.getElementById(`arg_${i}`);\n        if (!inputEl) throw new Error('Argument manquant');\n        const val = inputEl.value.trim();\n\n        if (fnFragment.inputs[i].type.startsWith('uint') || fnFragment.inputs[i].type.startsWith('int')) {\n          args.push(val === '' ? 0 : ethers.BigNumber.from(val));\n        } else if (fnFragment.inputs[i].type === 'address') {\n          args.push(val);\n        } else if (fnFragment.inputs[i].type === 'bool') {\n          args.push(val.toLowerCase() === 'true' || val === '1');\n        } else if (fnFragment.inputs[i].type === 'string') {\n          args.push(val);\n        } else {\n          args.push(val);\n        }\n      }\n\n      let result;\n      if (fnFragment.stateMutability === 'view' || fnFragment.stateMutability === 'pure') {\n        result = await contract[fnName](...args);\n        functionResult.style.color = 'green';\n        functionResult.textContent = `R\u00e9sultat: ${result.toString()}`;\n      } else {\n        const tx = await contract[fnName](...args);\n        await tx.wait();\n        functionResult.style.color = 'green';\n        functionResult.textContent = `Transaction min\u00e9e, hash: ${tx.hash}`;\n      }\n    } catch (err) {\n      functionResult.style.color = 'red';\n      functionResult.textContent = 'Erreur: ' + err.message;\n    }\n  });\n\n  // --- Chargement initial ---\n  async function autoReload() {\n    await Promise.all([\n      loadAccounts(),\n      loadTransactions(),\n      loadBlocks(currentBlockPage),\n      loadContracts()\n    ]);\n  }\n  autoReload();\n  setInterval(autoReload, 15000);\n</script>\n</body>\n</html>                     "},{"assistant_initiates":false,"asst_text":"Oui, exactement. Voici pourquoi et comment proc\u00e9der\u202f:\n\n### Pourquoi changer le JWT secret avant la mise en production ?\n\nLe **JWT_SECRET** est la cl\u00e9 secr\u00e8te utilis\u00e9e pour :\n\n- **Signer** les tokens JWT (JSON Web Tokens) lors de la cr\u00e9ation des tokens d\u2019authentification.\n- **V\u00e9rifier** la validit\u00e9 des tokens lors des requ\u00eates prot\u00e9g\u00e9es.\n\nSi cette cl\u00e9 est connue ou faible :\n\n- Toute personne pourrait cr\u00e9er ou forger des tokens valides, donc usurper des identit\u00e9s et acc\u00e9der aux ressources prot\u00e9g\u00e9es.\n- La s\u00e9curit\u00e9 de votre application est compromise.\n\nDans le code que tu as partag\u00e9, la valeur :\n\n```js\nconst JWT_SECRET = 'change_cette_cle_secrete_en_prod';\n```\n\nest une valeur par d\u00e9faut tr\u00e8s simple et visible dans le code, qui ne garantit aucune s\u00e9curit\u00e9.\n\n---\n\n### Bonnes pratiques pour le secret JWT en production\n\n1. **G\u00e9n\u00e9rer un secret fort, al\u00e9atoire et long**  \n   Par exemple, une cha\u00eene d\u2019au moins 32 caract\u00e8res alphanum\u00e9riques, voire une cl\u00e9 secr\u00e8te g\u00e9n\u00e9r\u00e9e avec un outil de cryptographie.\n\n2. **Ne jamais hardcoder le secret dans le code source**  \n   Le stocker dans une variable d\u2019environnement (env var) s\u00e9curis\u00e9e, non commit\u00e9e dans le code, par exemple via un fichier `.env` avec le package `dotenv` ou directement dans la configuration d'environnement de ton serveur.\n\n3. **Changer la cl\u00e9 si elle a \u00e9t\u00e9 expos\u00e9e**  \n   Si le secret \u00e9tait visible ou compromis, il faut en g\u00e9n\u00e9rer un nouveau et invalider les tokens existants.\n\n---\n\n### Exemple simple d\u2019utilisation d\u2019une variable d\u2019environnement\n\n1. Installer `dotenv` si besoin :\n\n```bash\nnpm install dotenv\n```\n\n2. Cr\u00e9er un fichier `.env` \u00e0 la racine (non versionn\u00e9 git) :\n\n```env\nJWT_SECRET=maCleTRESecure$EtLongue$1234567890random\n```\n\n3. Dans `server.js`, charger la config :\n\n```js\nrequire('dotenv').config();\n\nconst JWT_SECRET = process.env.JWT_SECRET;\nif (!JWT_SECRET) {\n  console.error('Erreur: JWT_SECRET non d\u00e9fini. Veuillez d\u00e9finir la variable d\\'environnement.');\n  process.exit(1);\n}\n```\n\n4. Lancer ton app avec le `.env` charg\u00e9 (ou d\u00e9finir la variable d'environnement dans ton syst\u00e8me).\n\n---\n\nMettre en place ce genre de proc\u00e9dure est indispensable pour que ton API reste s\u00e9curis\u00e9e en production.","behavior":"degenerate_repetition","conversation_hash":"7c017b5dceb60f7ac99140358622919d","conversation_redacted":false,"conversation_toxic":false,"country":"France","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"French","model":"gpt-4.1-mini-2025-04-14","n_chars":2252,"n_turns_in_conversation":2,"n_words":336,"source_row_offset":12502,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:38:40 GMT","turn_id":"ab745c01f2ca608f24fcce06","turn_index":1,"user_text":"Le JWT secret doit imp\u00e9rativement \u00eatre chang\u00e9 avant mise en production."},{"assistant_initiates":false,"asst_text":"Manga \"Munakata Ky\u014dju Sekai-hen\" Akan Libur Satu Bulan dan Kembali 10 Juli dengan Halaman Warna\n\nManga \"Munakata Ky\u014dju Sekai-hen\" karya \"Yukinobu Hoshino\", bagian dari seri \"Munakata Ky\u014dju\", akan menjalani jeda selama satu bulan dan akan kembali terbit pada 10 Juli dengan tambahan halaman berwarna, menurut pengumuman di majalah \"Big Comic\" edisi ke-11 tahun ini dari penerbit \"Shogakukan\". Manga ini mulai diluncurkan pada Februari 2023 dan sudah mencapai volume kelima yang diterbitkan pada 30 Januari lalu. Cerita dalam manga ini mengikuti Profesor Munakata, seorang antropolog yang menelusuri hubungan antara mitos dan legenda budaya serta bagaimana hal itu mencerminkan sejarah paralel. Sebelumnya, seri ini pernah hadir dalam beberapa versi seperti \"Munakata Ky\u014dju Denkik\u014d\" (1994-1999) dan sekuelnya \"Munakata Ky\u014dju Ik\u014droku\" (2004-2010). Selain itu, \"Yukinobu Hoshino\" juga dikenal lewat karya \"2001 Nights\", manga fiksi ilmiah yang pernah diserialisasikan di majalah \"Monthly Super Action\" dan diadaptasi menjadi beberapa OVA, termasuk yang dirilis di Amerika Utara dan Inggris oleh berbagai distributor. \"Yukinobu Hoshino\" juga menuntaskan manga \"Rainman\" pada Januari 2018.","behavior":"degenerate_repetition","conversation_hash":"e4dc34d02c4a845b8f522485dcb60a8b","conversation_redacted":false,"conversation_toxic":false,"country":"South Korea","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"Indonesian","model":"gpt-4.1-mini-2025-04-14","n_chars":3916,"n_turns_in_conversation":1,"n_words":584,"source_row_offset":12503,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:39:11 GMT","turn_id":"43f722bc79a3dd58dc56a02f","turn_index":0,"user_text":"Buat ulang judul artikel dan isi artikel berita ini dengan kosa kata, karakter, bahasa yang mudah dipahami oleh semua usia, bahasa yang rapi, sederhana, tetap informatif, tetap ambil point penting saja tidak semuanya diambil, tapi diringkas dan disimpulkan dalam bahasa Indonesia.           \n- Judul Berita pastikan disusun ulang menjadi judul berita yang mudah dipahami, ringkas, kesimpulan dan juga tetap seperti proffesional. susun kalimat judul berita dengan baik\n- **Nama anime, Nama Orang organisasi, studio, dan tempat diberi tanda kutip dua (\"\")**, tetapi **kata seperti anime, manga, studio, atau tempat tidak perlu diberi kutip**.  \n- Jangan ubah atau hilangkan kata dari judul asli artikel.\n- Ambil Point Penting dan jadikan seluruhnya dalam 1 Paragraf dengan Rapi dan terstruktur seperti layaknya berita proffesional\n- hilangkan duplicate kata yang sama yang tidak perlu\n- Jangan gunakan label seperti \"Judul Artikel:\", \"Isi Berita:\", atau \"Poin-Poin Penting:\".\n- Apabila terdapat judul film, nama orang, nama anime, atau nama kartun, jangan diubah ke bahasa Indonesia\n- Berikan hasil akhir dalam bentuk paragraf langsung tanpa tambahan format lain:\n\nYukinobu Hoshino's Munakata Ky\u014dju Sekai-hen Manga Takes 1-Month Hiatus\n\nThis year's 11th issue of\n\nShogakukan\n\n's\n\nBig Comic\n\nmagazine revealed on Friday that\n\nYukinobu Hoshino\n\n's\n\nMunakata Ky\u014dju Sekai-hen\n\n(Professor Munakata - World Arc), a new\n\nmanga\n\nin his\n\nMunakata Ky\u014dju\n\n(\n\nProfessor Munakata\n\n) series, will go on hiatus and will return with color pages on July 10.\n\nHoshino launched the manga in Big Comic in February 2023. Shogakukan published the manga's fifth compiled book volume on January 30.\n\n\n\nHoshino's Munakata Ky\u014dju series centers on the titular Professor Munakata, an anthropology professor who explores the connections between cultural myths and legends, and how they reflect on our parallel history.\n\n\n\nThe Munakata Ky\u014dju Denkik\u014d manga ran in Ushio Publishing's Comic Tom and Comic Tom Plus magazines from 1994 to 1999, followed by the Munakata Ky\u014dju Ik\u014droku sequel manga in Big Comic from 2004 to 2010.\n\n\n\nHoshino also created the 2001 Nights science-fiction manga series, which he originally serialized in Futabasha's Monthly Super Action magazine in 1984-1986. Viz Media released the three-volume manga in North America. The manga inspired an original video anime (OVA) of the same name in 1987, and another OVA titled TO (2001 Nights) in 2009. Funimation licensed and released the 2009 OVA in North America in June 2011 on Blu-ray Disc and DVD and again on DVD in July 2015. UK distributor Manga Entertainment released the OVA in the United Kingdom on DVD and Blu-ray Disc in August 2011.\n\n\n\nHoshino ended his Rainman manga in January 2018."},{"assistant_initiates":false,"asst_text":"Hello! I'm doing great, thank you. How can I assist you today?","behavior":"degenerate_repetition","conversation_hash":"5663a7eb4f1bd2d2a3fc9531d0ba3a5d","conversation_redacted":false,"conversation_toxic":false,"country":"United Kingdom","empty_output":false,"evidence_codes":[],"label":"absent","label_present":false,"label_qualified":false,"label_source":"Final dense release","language":"English","model":"gpt-4.1-mini-2025-04-14","n_chars":119,"n_turns_in_conversation":1,"n_words":23,"source_row_offset":12504,"source_shard":"turns-00082.parquet","timestamp":"Fri, 23 May 2025 19:39:54 GMT","turn_id":"efc3e18b43757da359e84914","turn_index":0,"user_text":"User: hi, how are you?\nUser: hi, how are you?\nAssistant:"}],"shard":{"index":82,"name":"turns-00082.parquet","rows":52233}}
