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      README.md 0 → 100644
      View file @ a2fccf0a
      # DApp de Vote
      Cette application décentralisée (DApp) permet de gérer un système de vote transparent sur la blockchain Ethereum.
      ## Fonctionnalités
      - Inscription des électeurs sur liste blanche par l'administrateur
      - Enregistrement des propositions par les électeurs inscrits
      - Vote pour les propositions préférées
      - Comptabilisation automatique des votes
      - Vérification des résultats accessible à tous
      ## Structure du Projet
      - `contracts/` : Contient les smart contracts Solidity
      - `frontend/` : Application React pour l'interface utilisateur
      - `test/` : Tests automatisés pour les smart contracts
      ## Installation
      ```bash
      # Installer les dépendances
      npm install
      # Démarrer le serveur de développement
      npm run dev
      ```
      ## Déploiement
      Lien vers le déploiement public : [à venir]
      ## Démo
      Lien vers la vidéo de démo : [à venir]
      ## Organisation du Projet
      Ce projet a été développé en suivant une architecture modulaire permettant de séparer clairement la logique de contrat de l'interface utilisateur.
      ## Fonctionnalités Supplémentaires
      1. Système de délégation de vote
      2. Possibilité de définir une date limite automatique pour les phases de vote
      \ No newline at end of file
      contracts/Voting.sol 0 → 100644
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      frontend/package.json 0 → 100644
      View file @ a2fccf0a
      {
      "name": "voting-dapp-frontend",
      "version": "0.1.0",
      "private": true,
      "dependencies": {
      "@testing-library/jest-dom": "^5.17.0",
      "@testing-library/react": "^13.4.0",
      "@testing-library/user-event": "^13.5.0",
      "ethers": "^5.7.2",
      "react": "^18.2.0",
      "react-dom": "^18.2.0",
      "react-scripts": "5.0.1",
      "web-vitals": "^2.1.4",
      "web3": "^1.10.0",
      "web3modal": "^1.9.12"
      },
      "scripts": {
      "start": "react-scripts start",
      "build": "react-scripts build",
      "test": "react-scripts test",
      "eject": "react-scripts eject",
      "dev": "react-scripts start"
      },
      "eslintConfig": {
      "extends": [
      "react-app",
      "react-app/jest"
      ]
      },
      "browserslist": {
      "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
      ],
      "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
      ]
      }
      }
      \ No newline at end of file
      frontend/public/index.html 0 → 100644
      View file @ a2fccf0a
      <!DOCTYPE html>
      <html lang="fr">
      <head>
      <meta charset="utf-8" />
      <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
      <meta name="viewport" content="width=device-width, initial-scale=1" />
      <meta name="theme-color" content="#000000" />
      <meta
      name="description"
      content="DApp de vote sur la blockchain Ethereum"
      />
      <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
      <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
      <title>DApp de Vote</title>
      <!-- Inclusion des polices Google -->
      <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap" rel="stylesheet">
      <!-- Inclusion des icônes Material -->
      <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
      </head>
      <body>
      <noscript>Vous devez activer JavaScript pour exécuter cette application.</noscript>
      <div id="root"></div>
      </body>
      </html>
      \ No newline at end of file
      frontend/public/manifest.json 0 → 100644
      View file @ a2fccf0a
      {
      "short_name": "DApp Vote",
      "name": "DApp de Vote sur Ethereum",
      "icons": [
      {
      "src": "favicon.ico",
      "sizes": "64x64 32x32 24x24 16x16",
      "type": "image/x-icon"
      },
      {
      "src": "logo192.png",
      "type": "image/png",
      "sizes": "192x192"
      },
      {
      "src": "logo512.png",
      "type": "image/png",
      "sizes": "512x512"
      }
      ],
      "start_url": ".",
      "display": "standalone",
      "theme_color": "#000000",
      "background_color": "#ffffff"
      }
      \ No newline at end of file
      frontend/src/App.js 0 → 100644
      View file @ a2fccf0a
      import React, { useState, useEffect, useCallback } from 'react';
      import { ethers } from 'ethers';
      import { connectWallet as connectWalletUtil } from './utils/contract';
      import Header from './components/Header';
      import ConnectWallet from './components/ConnectWallet';
      import WorkflowStatus from './components/WorkflowStatus';
      import VoterManagement from './components/VoterManagement';
      import ProposalManagement from './components/ProposalManagement';
      import VotingSession from './components/VotingSession';
      function App() {
      const [account, setAccount] = useState(null);
      const [contract, setContract] = useState(null);
      const [isOwner, setIsOwner] = useState(false);
      const [isVoter, setIsVoter] = useState(false);
      const [loading, setLoading] = useState(false);
      const [error, setError] = useState(null);
      const [currentStatus, setCurrentStatus] = useState(0);
      const [proposals, setProposals] = useState([]);
      const [voterInfo, setVoterInfo] = useState({ isRegistered: false, hasVoted: false, votedProposalId: 0 });
      // Connexion au portefeuille Ethereum
      const connectWalletHandler = async () => {
      try {
      setLoading(true);
      setError(null);
      const { accounts, contract: votingContract } = await connectWalletUtil();
      setAccount(accounts[0]);
      setContract(votingContract);
      // Vérification si l'utilisateur est le propriétaire du contrat
      const contractOwner = await votingContract.owner();
      setIsOwner(accounts[0].toLowerCase() === contractOwner.toLowerCase());
      // Récupération du statut actuel du workflow
      const status = await votingContract.workflowStatus();
      setCurrentStatus(status.toString());
      // Vérification si l'utilisateur est un électeur inscrit
      try {
      const voter = await votingContract.getVoter(accounts[0]);
      setIsVoter(voter.isRegistered);
      setVoterInfo({
      isRegistered: voter.isRegistered,
      hasVoted: voter.hasVoted,
      votedProposalId: voter.votedProposalId.toString()
      });
      } catch (error) {
      // Si l'utilisateur n'est pas un électeur, une erreur est générée
      setIsVoter(false);
      }
      setLoading(false);
      } catch (error) {
      console.error("Erreur lors de la connexion:", error);
      setError("Impossible de se connecter au portefeuille. Assurez-vous que MetaMask est installé et connecté.");
      setLoading(false);
      }
      };
      // Mise à jour du statut du workflow
      const updateWorkflowStatus = useCallback(async () => {
      if (!contract) return;
      try {
      const status = await contract.workflowStatus();
      setCurrentStatus(status.toString());
      } catch (error) {
      console.error("Erreur lors de la récupération du statut:", error);
      }
      }, [contract]);
      // Actions liées au workflow
      const handleWorkflowAction = async (action, duration = 60) => {
      if (!contract) return;
      try {
      setLoading(true);
      let tx;
      switch (action) {
      case 'startProposalsRegistration':
      tx = await contract.startProposalsRegistration(duration);
      break;
      case 'endProposalsRegistration':
      tx = await contract.endProposalsRegistration();
      break;
      case 'startVotingSession':
      tx = await contract.startVotingSession(duration);
      break;
      case 'endVotingSession':
      tx = await contract.endVotingSession();
      break;
      case 'tallyVotes':
      tx = await contract.tallyVotes();
      break;
      default:
      throw new Error("Action non reconnue");
      }
      await tx.wait();
      await updateWorkflowStatus();
      // Si nous passons à la phase de vote ou de résultats, récupérons les propositions
      if (action === 'startVotingSession' || action === 'tallyVotes') {
      await fetchProposals();
      }
      setLoading(false);
      } catch (error) {
      console.error(`Erreur lors de l'action ${action}:`, error);
      setError(`Erreur lors de l'action: ${error.message}`);
      setLoading(false);
      }
      };
      // Ajout d'un électeur
      const addVoter = async (voterAddress) => {
      if (!contract) return;
      try {
      setLoading(true);
      const tx = await contract.registerVoter(voterAddress);
      await tx.wait();
      setLoading(false);
      } catch (error) {
      console.error("Erreur lors de l'ajout de l'électeur:", error);
      setError(`Erreur: ${error.message}`);
      setLoading(false);
      }
      };
      // Récupération des informations de l'électeur
      const fetchVoterInfo = useCallback(async () => {
      if (!contract || !account || !isVoter) return;
      try {
      const voter = await contract.getVoter(account);
      setVoterInfo({
      isRegistered: voter.isRegistered,
      hasVoted: voter.hasVoted,
      votedProposalId: voter.votedProposalId.toString()
      });
      } catch (error) {
      console.error("Erreur lors de la récupération des infos de l'électeur:", error);
      }
      }, [contract, account, isVoter]);
      // Soumission d'une proposition
      const submitProposal = async (description) => {
      if (!contract) return;
      try {
      setLoading(true);
      const tx = await contract.registerProposal(description);
      await tx.wait();
      await fetchProposals();
      setLoading(false);
      } catch (error) {
      console.error("Erreur lors de la soumission de la proposition:", error);
      setError(`Erreur: ${error.message}`);
      setLoading(false);
      }
      };
      // Récupération des propositions
      const fetchProposals = useCallback(async () => {
      if (!contract || !isVoter) return;
      try {
      const proposalsCount = await contract.getProposalsCount();
      const proposalsList = [];
      for (let i = 0; i < proposalsCount; i++) {
      const proposal = await contract.getProposal(i);
      proposalsList.push({
      description: proposal.description,
      voteCount: proposal.voteCount.toString()
      });
      }
      setProposals(proposalsList);
      } catch (error) {
      console.error("Erreur lors de la récupération des propositions:", error);
      }
      }, [contract, isVoter]);
      // Soumission d'un vote
      const submitVote = async (proposalId) => {
      if (!contract) return;
      try {
      setLoading(true);
      const tx = await contract.vote(proposalId);
      await tx.wait();
      await fetchVoterInfo();
      setLoading(false);
      } catch (error) {
      console.error("Erreur lors du vote:", error);
      setError(`Erreur: ${error.message}`);
      setLoading(false);
      }
      };
      // Délégation de vote
      const delegateVote = async (delegateAddress) => {
      if (!contract) return;
      try {
      setLoading(true);
      const tx = await contract.delegateVoteTo(delegateAddress);
      await tx.wait();
      await fetchVoterInfo();
      setLoading(false);
      } catch (error) {
      console.error("Erreur lors de la délégation du vote:", error);
      setError(`Erreur: ${error.message}`);
      setLoading(false);
      }
      };
      // Détection des changements de compte
      useEffect(() => {
      if (window.ethereum) {
      window.ethereum.on('accountsChanged', (accounts) => {
      window.location.reload();
      });
      }
      }, []);
      // Mise à jour automatique des données
      useEffect(() => {
      const interval = setInterval(() => {
      if (contract) {
      updateWorkflowStatus();
      if (isVoter) {
      fetchVoterInfo();
      fetchProposals();
      }
      }
      }, 10000); // Mettre à jour toutes les 10 secondes
      return () => clearInterval(interval);
      }, [contract, isVoter, updateWorkflowStatus, fetchVoterInfo, fetchProposals]);
      return (
      <div className="App">
      <Header account={account} isOwner={isOwner} />
      <div className="container">
      {error && (
      <div className="status error">
      {error}
      <button className="close-button" onClick={() => setError(null)}>×</button>
      </div>
      )}
      {!account ? (
      <ConnectWallet connectWallet={connectWalletHandler} loading={loading} />
      ) : (
      <>
      <WorkflowStatus
      status={currentStatus}
      isOwner={isOwner}
      onAction={handleWorkflowAction}
      loading={loading}
      />
      <VoterManagement
      isOwner={isOwner}
      addVoter={addVoter}
      loading={loading}
      isVoter={isVoter}
      currentStatus={currentStatus}
      />
      <ProposalManagement
      isVoter={isVoter}
      submitProposal={submitProposal}
      fetchProposals={fetchProposals}
      currentStatus={currentStatus}
      proposals={proposals}
      loading={loading}
      />
      <VotingSession
      isVoter={isVoter}
      submitVote={submitVote}
      delegateVote={delegateVote}
      fetchVoterInfo={fetchVoterInfo}
      fetchProposals={fetchProposals}
      currentStatus={currentStatus}
      proposals={proposals}
      loading={loading}
      voterInfo={voterInfo}
      />
      </>
      )}
      </div>
      </div>
      );
      }
      export default App;
      \ No newline at end of file
      frontend/src/components/ConnectWallet.js 0 → 100644
      View file @ a2fccf0a
      import React from 'react';
      const ConnectWallet = ({ connectWallet, loading }) => {
      return (
      <div className="connect-wallet card">
      <h2>Bienvenue sur la DApp de Vote</h2>
      <p>Connectez votre portefeuille Ethereum pour interagir avec l'application.</p>
      <button
      className="button"
      onClick={connectWallet}
      disabled={loading}
      >
      {loading ? "Connexion en cours..." : "Connecter le portefeuille"}
      </button>
      </div>
      );
      };
      export default ConnectWallet;
      \ No newline at end of file
      frontend/src/components/Header.js 0 → 100644
      View file @ a2fccf0a
      import React from 'react';
      const Header = ({ account, isOwner }) => {
      return (
      <header className="header">
      <div className="container">
      <h1>DApp de Vote</h1>
      {account && (
      <div className="account-info">
      <p>Compte connecté: {account.slice(0, 6)}...{account.slice(-4)}</p>
      {isOwner && <span className="admin-badge">Administrateur</span>}
      </div>
      )}
      </div>
      </header>
      );
      };
      export default Header;
      \ No newline at end of file
      frontend/src/components/ProposalManagement.js 0 → 100644
      View file @ a2fccf0a
      import React, { useState, useEffect } from 'react';
      const ProposalManagement = ({
      isVoter,
      submitProposal,
      fetchProposals,
      currentStatus,
      proposals,
      loading
      }) => {
      const [proposalDescription, setProposalDescription] = useState('');
      const [error, setError] = useState('');
      useEffect(() => {
      if (isVoter && parseInt(currentStatus) >= 1) {
      fetchProposals();
      }
      }, [isVoter, currentStatus, fetchProposals]);
      const handleSubmitProposal = () => {
      if (!proposalDescription.trim()) {
      setError('La description de la proposition ne peut pas être vide.');
      return;
      }
      setError('');
      submitProposal(proposalDescription);
      setProposalDescription('');
      };
      // Si l'utilisateur n'est pas un électeur ou si on n'est pas encore à la phase de propositions
      if (!isVoter || parseInt(currentStatus) < 1) {
      return null;
      }
      return (
      <div className="card">
      <h2>Propositions</h2>
      {parseInt(currentStatus) === 1 && (
      <div className="voter-actions">
      <h3>Soumettre une proposition</h3>
      <textarea
      className="input"
      placeholder="Description de votre proposition"
      value={proposalDescription}
      onChange={(e) => setProposalDescription(e.target.value)}
      rows={4}
      />
      {error && <p className="status error">{error}</p>}
      <button
      className="button"
      onClick={handleSubmitProposal}
      disabled={loading || !proposalDescription.trim()}
      >
      {loading ? "Transaction en cours..." : "Soumettre la proposition"}
      </button>
      </div>
      )}
      {proposals.length > 0 ? (
      <div className="proposals-list">
      <h3>Liste des propositions ({proposals.length - 1})</h3>
      <ul className="proposal-list">
      {proposals.slice(1).map((proposal, index) => (
      <li key={index + 1} className="proposal-item">
      <strong>Proposition #{index + 1}:</strong> {proposal.description}
      {parseInt(currentStatus) >= 5 && (
      <div className="vote-count">
      <span>{proposal.voteCount} vote(s)</span>
      </div>
      )}
      </li>
      ))}
      </ul>
      </div>
      ) : (
      parseInt(currentStatus) > 1 && (
      <p>Aucune proposition n'a été soumise.</p>
      )
      )}
      </div>
      );
      };
      export default ProposalManagement;
      \ No newline at end of file
      frontend/src/components/VoterManagement.js 0 → 100644
      View file @ a2fccf0a
      import React, { useState } from 'react';
      import { ethers } from 'ethers';
      const VoterManagement = ({ isOwner, addVoter, loading, isVoter, currentStatus }) => {
      const [voterAddress, setVoterAddress] = useState('');
      const [error, setError] = useState('');
      const handleAddVoter = () => {
      if (!ethers.utils.isAddress(voterAddress)) {
      setError('Adresse Ethereum invalide');
      return;
      }
      setError('');
      addVoter(voterAddress);
      setVoterAddress('');
      };
      // Si ce n'est pas la phase d'enregistrement des électeurs, on n'affiche pas ce composant
      if (parseInt(currentStatus) !== 0 && !isVoter) {
      return null;
      }
      return (
      <div className="card">
      <h2>Gestion des électeurs</h2>
      {isOwner && parseInt(currentStatus) === 0 ? (
      <div className="admin-actions">
      <h3>Ajouter un électeur</h3>
      <input
      type="text"
      className="input"
      placeholder="Adresse Ethereum (0x...)"
      value={voterAddress}
      onChange={(e) => setVoterAddress(e.target.value)}
      />
      {error && <p className="status error">{error}</p>}
      <button
      className="button"
      onClick={handleAddVoter}
      disabled={loading || !voterAddress}
      >
      {loading ? "Transaction en cours..." : "Ajouter l'électeur"}
      </button>
      </div>
      ) : (
      <div className="voter-info">
      {isVoter ? (
      <p className="status success">Vous êtes enregistré comme électeur.</p>
      ) : (
      <p className="status warning">Vous n'êtes pas enregistré comme électeur.</p>
      )}
      </div>
      )}
      </div>
      );
      };
      export default VoterManagement;
      \ No newline at end of file
      frontend/src/components/VotingSession.js 0 → 100644
      View file @ a2fccf0a
      import React, { useState, useEffect } from 'react';
      import { ethers } from 'ethers';
      const VotingSession = ({
      isVoter,
      submitVote,
      delegateVote,
      fetchVoterInfo,
      fetchProposals,
      currentStatus,
      proposals,
      loading,
      voterInfo
      }) => {
      const [selectedProposal, setSelectedProposal] = useState(null);
      const [delegateAddress, setDelegateAddress] = useState('');
      const [error, setError] = useState('');
      const [delegateError, setDelegateError] = useState('');
      useEffect(() => {
      if (isVoter && parseInt(currentStatus) >= 3) {
      fetchVoterInfo();
      fetchProposals();
      }
      }, [isVoter, currentStatus, fetchVoterInfo, fetchProposals]);
      const handleVote = () => {
      if (selectedProposal === null) {
      setError('Veuillez sélectionner une proposition');
      return;
      }
      setError('');
      submitVote(selectedProposal);
      };
      const handleDelegateVote = () => {
      if (!ethers.utils.isAddress(delegateAddress)) {
      setDelegateError('Adresse Ethereum invalide');
      return;
      }
      setDelegateError('');
      delegateVote(delegateAddress);
      setDelegateAddress('');
      };
      // Si l'utilisateur n'est pas un électeur ou si on n'est pas à la phase de vote
      if (!isVoter || parseInt(currentStatus) < 3) {
      return null;
      }
      // Si les votes sont comptabilisés et qu'il y a au moins une proposition
      if (parseInt(currentStatus) === 5 && proposals.length > 0) {
      // Trouver la proposition gagnante
      let winningProposalId = 0;
      let maxVotes = 0;
      proposals.forEach((proposal, index) => {
      if (parseInt(proposal.voteCount) > maxVotes) {
      maxVotes = parseInt(proposal.voteCount);
      winningProposalId = index;
      }
      });
      const winningProposal = proposals[winningProposalId];
      return (
      <div className="card">
      <h2>Résultat du vote</h2>
      <div className="winner-info">
      <h3>Proposition gagnante :</h3>
      <div className="proposal-item winner">
      <strong>Proposition #{winningProposalId}:</strong> {winningProposal.description}
      <div className="vote-count">
      <span>{winningProposal.voteCount} vote(s)</span>
      </div>
      </div>
      </div>
      </div>
      );
      }
      return (
      <div className="card">
      <h2>Session de vote</h2>
      {parseInt(currentStatus) === 3 && (
      <>
      {!voterInfo.hasVoted ? (
      <div className="voter-actions">
      <h3>Voter pour une proposition</h3>
      <ul className="proposal-list">
      {proposals.slice(1).map((proposal, index) => (
      <li
      key={index + 1}
      className={`proposal-item ${selectedProposal === index + 1 ? 'selected' : ''}`}
      onClick={() => setSelectedProposal(index + 1)}
      >
      <strong>Proposition #{index + 1}:</strong> {proposal.description}
      </li>
      ))}
      </ul>
      {error && <p className="status error">{error}</p>}
      <div className="voting-buttons">
      <button
      className="button"
      onClick={handleVote}
      disabled={loading || selectedProposal === null}
      >
      {loading ? "Transaction en cours..." : "Voter"}
      </button>
      <div className="delegation-section">
      <h4>Ou déléguer votre vote</h4>
      <input
      type="text"
      className="input"
      placeholder="Adresse Ethereum du délégué (0x...)"
      value={delegateAddress}
      onChange={(e) => setDelegateAddress(e.target.value)}
      />
      {delegateError && <p className="status error">{delegateError}</p>}
      <button
      className="button secondary"
      onClick={handleDelegateVote}
      disabled={loading || !delegateAddress}
      >
      {loading ? "Transaction en cours..." : "Déléguer le vote"}
      </button>
      </div>
      </div>
      </div>
      ) : (
      <div className="already-voted">
      <p className="status success">Vous avez déjà voté pour la proposition #{voterInfo.votedProposalId}.</p>
      </div>
      )}
      </>
      )}
      {parseInt(currentStatus) === 4 && (
      <div className="waiting-results">
      <p>La session de vote est terminée. En attente du comptage des votes...</p>
      </div>
      )}
      </div>
      );
      };
      export default VotingSession;
      \ No newline at end of file
      frontend/src/components/WorkflowStatus.js 0 → 100644
      View file @ a2fccf0a
      import React from 'react';
      import { getWorkflowStatusString } from '../utils/contract';
      const WorkflowStatus = ({ status, isOwner, onAction, loading }) => {
      const workflowSteps = [
      { status: 0, label: "Enregistrement des électeurs" },
      { status: 1, label: "Enregistrement des propositions" },
      { status: 2, label: "Fin de l'enregistrement des propositions" },
      { status: 3, label: "Session de vote" },
      { status: 4, label: "Fin de la session de vote" },
      { status: 5, label: "Votes comptabilisés" }
      ];
      // Préparation des actions disponibles en fonction du statut actuel
      const getAvailableAction = () => {
      if (!isOwner) return null;
      switch (parseInt(status)) {
      case 0:
      return {
      label: "Démarrer l'enregistrement des propositions",
      action: "startProposalsRegistration",
      requireDuration: true
      };
      case 1:
      return {
      label: "Terminer l'enregistrement des propositions",
      action: "endProposalsRegistration"
      };
      case 2:
      return {
      label: "Démarrer la session de vote",
      action: "startVotingSession",
      requireDuration: true
      };
      case 3:
      return {
      label: "Terminer la session de vote",
      action: "endVotingSession"
      };
      case 4:
      return {
      label: "Comptabiliser les votes",
      action: "tallyVotes"
      };
      default:
      return null;
      }
      };
      const availableAction = getAvailableAction();
      const [duration, setDuration] = React.useState(60); // Durée par défaut: 60 minutes
      const handleActionClick = () => {
      if (availableAction.requireDuration) {
      onAction(availableAction.action, duration);
      } else {
      onAction(availableAction.action);
      }
      };
      return (
      <div className="card">
      <h2>Statut actuel: {getWorkflowStatusString(status)}</h2>
      <div className="workflow-status">
      {workflowSteps.map((step) => (
      <div
      key={step.status}
      className={`workflow-step ${parseInt(status) === step.status ? 'active' : ''} ${parseInt(status) > step.status ? 'completed' : ''}`}
      >
      <div className="step-number">{step.status + 1}</div>
      <div className="step-label">{step.label}</div>
      </div>
      ))}
      </div>
      {isOwner && availableAction && (
      <div className="admin-actions">
      {availableAction.requireDuration && (
      <div className="duration-input">
      <label htmlFor="duration">Durée (en minutes):</label>
      <input
      type="number"
      id="duration"
      className="input"
      value={duration}
      onChange={(e) => setDuration(e.target.value)}
      min="1"
      />
      </div>
      )}
      <button
      className="button"
      onClick={handleActionClick}
      disabled={loading}
      >
      {loading ? "Transaction en cours..." : availableAction.label}
      </button>
      </div>
      )}
      </div>
      );
      };
      export default WorkflowStatus;
      \ No newline at end of file
      frontend/src/contracts/Voting.json 0 → 100644
      View file @ a2fccf0a
      {
      "contractName": "Voting",
      "abi": [
      {
      "inputs": [],
      "stateMutability": "nonpayable",
      "type": "constructor"
      },
      {
      "anonymous": false,
      "inputs": [
      {
      "indexed": false,
      "internalType": "uint256",
      "name": "proposalId",
      "type": "uint256"
      }
      ],
      "name": "ProposalRegistered",
      "type": "event"
      },
      {
      "anonymous": false,
      "inputs": [
      {
      "indexed": false,
      "internalType": "address",
      "name": "voter",
      "type": "address"
      },
      {
      "indexed": false,
      "internalType": "uint256",
      "name": "proposalId",
      "type": "uint256"
      }
      ],
      "name": "Voted",
      "type": "event"
      },
      {
      "anonymous": false,
      "inputs": [
      {
      "indexed": false,
      "internalType": "address",
      "name": "voterAddress",
      "type": "address"
      }
      ],
      "name": "VoterRegistered",
      "type": "event"
      },
      {
      "anonymous": false,
      "inputs": [
      {
      "indexed": false,
      "internalType": "enum Voting.WorkflowStatus",
      "name": "previousStatus",
      "type": "uint8"
      },
      {
      "indexed": false,
      "internalType": "enum Voting.WorkflowStatus",
      "name": "newStatus",
      "type": "uint8"
      }
      ],
      "name": "WorkflowStatusChange",
      "type": "event"
      },
      {
      "inputs": [],
      "name": "checkAndUpdateStatus",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "address",
      "name": "_to",
      "type": "address"
      }
      ],
      "name": "delegateVoteTo",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "endProposalsRegistration",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "endVotingSession",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "address",
      "name": "_voterAddress",
      "type": "address"
      }
      ],
      "name": "getDelegation",
      "outputs": [
      {
      "internalType": "address",
      "name": "",
      "type": "address"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "uint256",
      "name": "_proposalId",
      "type": "uint256"
      }
      ],
      "name": "getProposal",
      "outputs": [
      {
      "internalType": "string",
      "name": "description",
      "type": "string"
      },
      {
      "internalType": "uint256",
      "name": "voteCount",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "getProposalsCount",
      "outputs": [
      {
      "internalType": "uint256",
      "name": "",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "address",
      "name": "_voterAddress",
      "type": "address"
      }
      ],
      "name": "getVoter",
      "outputs": [
      {
      "internalType": "bool",
      "name": "isRegistered",
      "type": "bool"
      },
      {
      "internalType": "bool",
      "name": "hasVoted",
      "type": "bool"
      },
      {
      "internalType": "uint256",
      "name": "votedProposalId",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "getWinner",
      "outputs": [
      {
      "internalType": "uint256",
      "name": "winningProposalIndex",
      "type": "uint256"
      },
      {
      "internalType": "string",
      "name": "description",
      "type": "string"
      },
      {
      "internalType": "uint256",
      "name": "voteCount",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "owner",
      "outputs": [
      {
      "internalType": "address",
      "name": "",
      "type": "address"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "registrationEndTime",
      "outputs": [
      {
      "internalType": "uint256",
      "name": "",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "string",
      "name": "_description",
      "type": "string"
      }
      ],
      "name": "registerProposal",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "address",
      "name": "_voterAddress",
      "type": "address"
      }
      ],
      "name": "registerVoter",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "renounceOwnership",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "uint256",
      "name": "_durationInMinutes",
      "type": "uint256"
      }
      ],
      "name": "startProposalsRegistration",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "uint256",
      "name": "_durationInMinutes",
      "type": "uint256"
      }
      ],
      "name": "startVotingSession",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "tallyVotes",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "address",
      "name": "newOwner",
      "type": "address"
      }
      ],
      "name": "transferOwnership",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [
      {
      "internalType": "uint256",
      "name": "_proposalId",
      "type": "uint256"
      }
      ],
      "name": "vote",
      "outputs": [],
      "stateMutability": "nonpayable",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "votingEndTime",
      "outputs": [
      {
      "internalType": "uint256",
      "name": "",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "winningProposalId",
      "outputs": [
      {
      "internalType": "uint256",
      "name": "",
      "type": "uint256"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      },
      {
      "inputs": [],
      "name": "workflowStatus",
      "outputs": [
      {
      "internalType": "enum Voting.WorkflowStatus",
      "name": "",
      "type": "uint8"
      }
      ],
      "stateMutability": "view",
      "type": "function"
      }
      ]
      }
      \ No newline at end of file
      frontend/src/index.css 0 → 100644
      View file @ a2fccf0a
      :root {
      --primary-color: #3f51b5;
      --secondary-color: #f50057;
      --background-color: #f5f5f5;
      --text-color: #333;
      --success-color: #4caf50;
      --warning-color: #ff9800;
      --error-color: #f44336;
      }
      body {
      margin: 0;
      font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Oxygen',
      'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
      sans-serif;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      background-color: var(--background-color);
      color: var(--text-color);
      }
      code {
      font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
      monospace;
      }
      .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      }
      .header {
      background-color: var(--primary-color);
      color: white;
      padding: 20px 0;
      margin-bottom: 30px;
      text-align: center;
      }
      .card {
      background-color: white;
      border-radius: 8px;
      box-shadow: 0 3px 6px rgba(0,0,0,0.1);
      padding: 20px;
      margin-bottom: 20px;
      }
      .button {
      background-color: var(--primary-color);
      color: white;
      border: none;
      border-radius: 4px;
      padding: 10px 20px;
      font-size: 16px;
      cursor: pointer;
      transition: background-color 0.3s ease;
      }
      .button:hover {
      background-color: #303f9f;
      }
      .button:disabled {
      background-color: #bdbdbd;
      cursor: not-allowed;
      }
      .button.secondary {
      background-color: var(--secondary-color);
      }
      .button.secondary:hover {
      background-color: #c51162;
      }
      .input {
      width: 100%;
      padding: 10px;
      border: 1px solid #ddd;
      border-radius: 4px;
      font-size: 16px;
      margin-bottom: 15px;
      }
      .status {
      margin-top: 10px;
      padding: 10px;
      border-radius: 4px;
      }
      .status.success {
      background-color: #e8f5e9;
      color: var(--success-color);
      }
      .status.warning {
      background-color: #fff3e0;
      color: var(--warning-color);
      }
      .status.error {
      background-color: #ffebee;
      color: var(--error-color);
      }
      .proposal-list {
      list-style: none;
      padding: 0;
      }
      .proposal-item {
      padding: 15px;
      border: 1px solid #ddd;
      border-radius: 4px;
      margin-bottom: 10px;
      transition: all 0.3s ease;
      }
      .proposal-item:hover {
      box-shadow: 0 3px 10px rgba(0,0,0,0.1);
      }
      .proposal-item.selected {
      border-color: var(--primary-color);
      background-color: #e8eaf6;
      }
      .connect-wallet {
      text-align: center;
      margin: 50px auto;
      max-width: 400px;
      }
      .workflow-status {
      display: flex;
      justify-content: space-between;
      margin-bottom: 30px;
      overflow-x: auto;
      }
      .workflow-step {
      flex: 1;
      text-align: center;
      padding: 10px;
      position: relative;
      }
      .workflow-step::after {
      content: '';
      position: absolute;
      top: 50%;
      right: 0;
      width: 100%;
      height: 2px;
      background-color: #ddd;
      z-index: -1;
      }
      .workflow-step:last-child::after {
      display: none;
      }
      .workflow-step.active {
      color: var(--primary-color);
      font-weight: bold;
      }
      .workflow-step.active::after {
      background-color: var(--primary-color);
      }
      .workflow-step.completed {
      color: var(--success-color);
      }
      .workflow-step.completed::after {
      background-color: var(--success-color);
      }
      .admin-actions, .voter-actions {
      margin-top: 20px;
      }
      @media (max-width: 768px) {
      .workflow-status {
      flex-direction: column;
      align-items: flex-start;
      }
      .workflow-step {
      width: 100%;
      margin-bottom: 10px;
      }
      .workflow-step::after {
      display: none;
      }
      }
      \ No newline at end of file
      frontend/src/index.js 0 → 100644
      View file @ a2fccf0a
      import React from 'react';
      import ReactDOM from 'react-dom/client';
      import './index.css';
      import App from './App';
      import reportWebVitals from './reportWebVitals';
      const root = ReactDOM.createRoot(document.getElementById('root'));
      root.render(
      <React.StrictMode>
      <App />
      </React.StrictMode>
      );
      // Si vous souhaitez mesurer les performances de votre application
      // pour plus d'informations: https://bit.ly/CRA-vitals
      reportWebVitals();
      \ No newline at end of file
      frontend/src/reportWebVitals.js 0 → 100644
      View file @ a2fccf0a
      const reportWebVitals = (onPerfEntry) => {
      if (onPerfEntry && onPerfEntry instanceof Function) {
      import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
      getCLS(onPerfEntry);
      getFID(onPerfEntry);
      getFCP(onPerfEntry);
      getLCP(onPerfEntry);
      getTTFB(onPerfEntry);
      });
      }
      };
      export default reportWebVitals;
      \ No newline at end of file
      frontend/src/utils/contract.js 0 → 100644
      View file @ a2fccf0a
      import { ethers } from 'ethers';
      import VotingABI from '../contracts/Voting.json';
      // Adresse du contrat déployé (à remplacer par votre adresse réelle après déploiement)
      export const CONTRACT_ADDRESS = "0x5FbDB2315678afecb367f032d93F642f64180aa3";
      export const connectWallet = async () => {
      try {
      if (!window.ethereum) {
      throw new Error("MetaMask n'est pas installé. Veuillez installer MetaMask.");
      }
      const accounts = await window.ethereum.request({
      method: "eth_requestAccounts",
      });
      const provider = new ethers.providers.Web3Provider(window.ethereum);
      const signer = provider.getSigner();
      const contract = new ethers.Contract(
      CONTRACT_ADDRESS,
      VotingABI.abi,
      signer
      );
      return { accounts, contract, provider, signer };
      } catch (error) {
      throw error;
      }
      };
      export const getWorkflowStatusString = (status) => {
      const statusLabels = [
      "Enregistrement des électeurs",
      "Enregistrement des propositions démarré",
      "Enregistrement des propositions terminé",
      "Session de vote démarrée",
      "Session de vote terminée",
      "Votes comptabilisés"
      ];
      return statusLabels[status] || "Statut inconnu";
      };
      \ No newline at end of file
      hardhat.config.js 0 → 100644
      View file @ a2fccf0a
      /**
      * @type import('hardhat/config').HardhatUserConfig
      */
      module.exports = {
      solidity: {
      version: "0.8.20",
      settings: {
      optimizer: {
      enabled: true,
      runs: 200
      }
      }
      },
      paths: {
      sources: "./contracts",
      tests: "./test",
      cache: "./cache",
      artifacts: "./artifacts"
      },
      networks: {
      hardhat: {
      chainId: 1337
      },
      localhost: {
      url: "http://127.0.0.1:8545"
      }
      }
      };
      \ No newline at end of file
      node_modules/ganache/node_modules/secp256k1/elliptic.js 0 → 100644
      View file @ a2fccf0a
      module.exports = require('./lib')(require('./lib/elliptic'))
      node_modules/ganache/node_modules/secp256k1/lib/elliptic.js 0 → 100644
      View file @ a2fccf0a
      This diff is collapsed.
      package.json 0 → 100644
      View file @ a2fccf0a
      {
      "name": "voting-dapp",
      "version": "1.0.0",
      "description": "DApp de vote sur Ethereum",
      "main": "index.js",
      "scripts": {
      "test": "hardhat test",
      "dev": "cd frontend && npm run dev",
      "compile": "hardhat compile",
      "deploy": "hardhat run scripts/deploy.js --network localhost",
      "node": "hardhat node"
      },
      "keywords": [
      "ethereum",
      "dapp",
      "voting",
      "blockchain",
      "solidity"
      ],
      "author": "",
      "license": "MIT",
      "devDependencies": {
      "@nomiclabs/hardhat-ethers": "^2.2.3",
      "@nomiclabs/hardhat-waffle": "^2.0.6",
      "@openzeppelin/contracts": "^4.9.3",
      "chai": "^4.3.8",
      "ethereum-waffle": "^4.0.10",
      "ethers": "^5.7.2",
      "hardhat": "^2.17.3"
      }
      }
      \ No newline at end of file
      scripts/deploy.js 0 → 100644
      View file @ a2fccf0a
      // Script de déploiement du contrat Voting
      const hre = require("hardhat");
      async function main() {
      console.log("Déploiement du contrat Voting...");
      // Récupération du compte de déploiement
      const [deployer] = await hre.ethers.getSigners();
      console.log("Déploiement avec le compte:", deployer.address);
      // Compilation du contrat
      const Voting = await hre.ethers.getContractFactory("Voting");
      // Déploiement du contrat
      const voting = await Voting.deploy();
      // Attente de la confirmation du déploiement
      await voting.deployed();
      console.log("Contrat Voting déployé à l'adresse:", voting.address);
      }
      // Exécution du script de déploiement avec gestion des erreurs
      main()
      .then(() => process.exit(0))
      .catch((error) => {
      console.error("Erreur lors du déploiement:", error);
      process.exit(1);
      });
      \ No newline at end of file
      test/Voting.test.js 0 → 100644
      View file @ a2fccf0a
      const { expect } = require("chai");
      const { ethers } = require("hardhat");
      describe("Contrat Voting", function () {
      let voting;
      let owner;
      let voter1;
      let voter2;
      let voter3;
      let nonVoter;
      beforeEach(async function () {
      // Déploiement d'un nouveau contrat pour chaque test
      [owner, voter1, voter2, voter3, nonVoter] = await ethers.getSigners();
      const Voting = await ethers.getContractFactory("Voting");
      voting = await Voting.deploy();
      await voting.deployed();
      });
      describe("Enregistrement des électeurs", function () {
      it("devrait permettre au propriétaire d'enregistrer un électeur", async function () {
      await expect(voting.registerVoter(voter1.address))
      .to.emit(voting, "VoterRegistered")
      .withArgs(voter1.address);
      });
      it("ne devrait pas permettre à un non-propriétaire d'enregistrer un électeur", async function () {
      await expect(voting.connect(voter1).registerVoter(voter2.address))
      .to.be.revertedWith("Ownable: caller is not the owner");
      });
      it("ne devrait pas permettre d'enregistrer un électeur déjà enregistré", async function () {
      await voting.registerVoter(voter1.address);
      await expect(voting.registerVoter(voter1.address))
      .to.be.revertedWith("L'electeur est deja enregistre");
      });
      });
      describe("Enregistrement des propositions", function () {
      beforeEach(async function () {
      // Enregistrement des électeurs
      await voting.registerVoter(voter1.address);
      await voting.registerVoter(voter2.address);
      });
      it("devrait permettre au propriétaire de démarrer la session d'enregistrement des propositions", async function () {
      await expect(voting.startProposalsRegistration(60))
      .to.emit(voting, "WorkflowStatusChange")
      .withArgs(0, 1); // RegisteringVoters -> ProposalsRegistrationStarted
      });
      it("devrait permettre aux électeurs enregistrés de soumettre des propositions", async function () {
      await voting.startProposalsRegistration(60);
      await expect(voting.connect(voter1).registerProposal("Proposition 1"))
      .to.emit(voting, "ProposalRegistered")
      .withArgs(1); // Index 1 car la proposition genesis est à l'index 0
      });
      it("ne devrait pas permettre aux non-électeurs de soumettre des propositions", async function () {
      await voting.startProposalsRegistration(60);
      await expect(voting.connect(nonVoter).registerProposal("Proposition illégitime"))
      .to.be.revertedWith("Vous n'etes pas un electeur enregistre");
      });
      it("ne devrait pas permettre de soumettre des propositions après la fin de la session", async function () {
      await voting.startProposalsRegistration(60);
      await voting.endProposalsRegistration();
      await expect(voting.connect(voter1).registerProposal("Proposition tardive"))
      .to.be.revertedWith("La session d'enregistrement des propositions n'est pas active");
      });
      });
      describe("Session de vote", function () {
      beforeEach(async function () {
      // Configuration du scénario de test
      await voting.registerVoter(voter1.address);
      await voting.registerVoter(voter2.address);
      await voting.registerVoter(voter3.address);
      await voting.startProposalsRegistration(60);
      await voting.connect(voter1).registerProposal("Proposition 1");
      await voting.connect(voter2).registerProposal("Proposition 2");
      await voting.endProposalsRegistration();
      });
      it("devrait permettre au propriétaire de démarrer la session de vote", async function () {
      await expect(voting.startVotingSession(60))
      .to.emit(voting, "WorkflowStatusChange")
      .withArgs(2, 3); // ProposalsRegistrationEnded -> VotingSessionStarted
      });
      it("devrait permettre aux électeurs enregistrés de voter", async function () {
      await voting.startVotingSession(60);
      await expect(voting.connect(voter1).vote(1)) // Vote pour la proposition 1
      .to.emit(voting, "Voted")
      .withArgs(voter1.address, 1);
      });
      it("ne devrait pas permettre de voter deux fois", async function () {
      await voting.startVotingSession(60);
      await voting.connect(voter1).vote(1);
      await expect(voting.connect(voter1).vote(2))
      .to.be.revertedWith("Vous avez deja vote");
      });
      it("ne devrait pas permettre de voter pour une proposition inexistante", async function () {
      await voting.startVotingSession(60);
      await expect(voting.connect(voter1).vote(999))
      .to.be.revertedWith("La proposition n'existe pas");
      });
      });
      describe("Délégation de vote (fonctionnalité supplémentaire)", function () {
      beforeEach(async function () {
      // Configuration du scénario de test pour la délégation
      await voting.registerVoter(voter1.address);
      await voting.registerVoter(voter2.address);
      await voting.registerVoter(voter3.address);
      await voting.startProposalsRegistration(60);
      await voting.connect(voter1).registerProposal("Proposition 1");
      await voting.connect(voter2).registerProposal("Proposition 2");
      await voting.endProposalsRegistration();
      await voting.startVotingSession(60);
      });
      it("devrait permettre à un électeur de déléguer son vote", async function () {
      await voting.connect(voter1).delegateVoteTo(voter2.address);
      const delegation = await voting.connect(voter1).getDelegation(voter1.address);
      expect(delegation).to.equal(voter2.address);
      });
      it("devrait automatiquement voter si le délégué a déjà voté", async function () {
      await voting.connect(voter2).vote(2); // Voter2 vote pour la proposition 2
      await voting.connect(voter1).delegateVoteTo(voter2.address); // Voter1 délègue à voter2
      // Vérification que voter1 a effectivement voté pour la même proposition que voter2
      const [, hasVoted, votedProposalId] = await voting.connect(voter1).getVoter(voter1.address);
      expect(hasVoted).to.be.true;
      expect(votedProposalId).to.equal(2);
      });
      it("ne devrait pas permettre les boucles de délégation", async function () {
      await voting.connect(voter1).delegateVoteTo(voter2.address);
      await voting.connect(voter2).delegateVoteTo(voter3.address);
      await expect(voting.connect(voter3).delegateVoteTo(voter1.address))
      .to.be.revertedWith("Boucle de delegation detectee");
      });
      });
      describe("Délais automatiques (fonctionnalité supplémentaire)", function () {
      it("devrait mettre à jour le statut lorsque le délai est passé", async function () {
      // Ce test est difficile à implémenter en pratique car il faudrait manipuler le temps
      // Dans un environnement de test réel, on utiliserait des outils comme evm_increaseTime
      // Ici, on se contente de vérifier que la fonction existe et peut être appelée
      await voting.registerVoter(voter1.address);
      await voting.startProposalsRegistration(0); // Délai de 0 minute pour le test
      await expect(voting.checkAndUpdateStatus()).to.not.be.reverted;
      });
      });
      describe("Comptage et résultats", function () {
      beforeEach(async function () {
      // Préparation d'un scénario de vote complet
      await voting.registerVoter(voter1.address);
      await voting.registerVoter(voter2.address);
      await voting.registerVoter(voter3.address);
      await voting.startProposalsRegistration(60);
      await voting.connect(voter1).registerProposal("Proposition 1");
      await voting.connect(voter2).registerProposal("Proposition 2");
      await voting.endProposalsRegistration();
      await voting.startVotingSession(60);
      // Voter1 et voter3 votent pour la proposition 1, voter2 pour la proposition 2
      await voting.connect(voter1).vote(1);
      await voting.connect(voter2).vote(2);
      await voting.connect(voter3).vote(1);
      await voting.endVotingSession();
      });
      it("devrait permettre au propriétaire de comptabiliser les votes", async function () {
      await expect(voting.tallyVotes())
      .to.emit(voting, "WorkflowStatusChange")
      .withArgs(4, 5); // VotingSessionEnded -> VotesTallied
      });
      it("devrait déterminer correctement la proposition gagnante", async function () {
      await voting.tallyVotes();
      const [winningProposalId, description, voteCount] = await voting.getWinner();
      // Vérification que la proposition 1 a gagné avec 2 votes
      expect(winningProposalId).to.equal(1);
      expect(description).to.equal("Proposition 1");
      expect(voteCount).to.equal(2);
      });
      it("ne devrait pas permettre d'accéder au gagnant avant le comptage", async function () {
      await voting.endVotingSession();
      // Sans appeler tallyVotes()
      await expect(voting.getWinner())
      .to.be.revertedWith("Les votes n'ont pas encore ete comptabilises");
      });
      });
      });
      \ No newline at end of file
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