farmingo/firestore.rules at main · SwapCodesDev/farmingo · GitHub

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rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {

    function isUser(userId) {
      return request.auth != null && request.auth.uid == userId;
    }

    function userRole() {
      return request.auth != null
        ? get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role
        : null;
    }

    function isAdmin() {
      return userRole() == 'admin';
    }

    function isModerator() {
      return userRole() in ['admin', 'moderator'];
    }

    function isOwner(resource) {
      return request.auth != null && resource.data.uid == request.auth.uid;
    }

    function getPrivacy(userId, fieldName) {
      let userRef = /databases/$(database)/documents/users/$(userId);
      let userData = exists(userRef) ? get(userRef).data : null;
      return (userData != null && 'privacySettings' in userData && fieldName in userData.privacySettings)
        ? userData.privacySettings[fieldName]
        : 'public';
    }

    // Common check for updates: Allow owners to update everything except protected metadata fields.
    function isValidUpdate(resource) {
      return !request.resource.data.diff(resource.data).changedKeys().hasAny(['uid', 'createdAt', 'id', 'communityId', 'creatorId']);
    }

    match /users/{userId} {
      allow read: if true;
      allow create: if request.auth != null && request.resource.data.uid == request.auth.uid &&
                    (request.resource.data.role in ['user', 'farmer']);
      allow update: if (isUser(userId) && isValidUpdate(resource)) ||
                      (isAdmin() && request.resource.data.diff(resource.data).changedKeys().hasOnly(['role', 'isVerified']));
      allow delete: if isAdmin() || isUser(userId);

      match /cart/{productId} {
        allow read, list, write, delete: if isUser(userId);
      }

      match /notifications/{notificationId} {
        allow read, list, write, delete: if isUser(userId);
      }

      match /followers/{followerUserId} {
        allow read: if request.auth != null && (
          userId == request.auth.uid ||
          getPrivacy(userId, 'followers') == 'public' ||
          (getPrivacy(userId, 'followers') == 'followers' && exists(/databases/$(database)/documents/users/$(userId)/followers/$(request.auth.uid)))
        );
        allow create, delete: if request.auth != null && request.auth.uid == followerUserId;
      }

      match /following/{followingUserId} {
        allow read: if request.auth != null && (
          userId == request.auth.uid ||
          getPrivacy(userId, 'following') == 'public' ||
          (getPrivacy(userId, 'following') == 'followers' && exists(/databases/$(database)/documents/users/$(userId)/followers/$(request.auth.uid)))
        );
        allow create, delete: if request.auth != null && request.auth.uid == userId;
      }
    }

    match /communities/{communityId} {
      allow read, list: if true;
      allow create: if request.auth != null && request.resource.data.creatorId == request.auth.uid;
      allow update: if request.auth != null && (
        (isUser(resource.data.creatorId) && isValidUpdate(resource)) ||
        (request.resource.data.diff(resource.data).changedKeys().hasOnly(['postCount']))
      );
      allow delete: if request.auth != null && (isUser(resource.data.creatorId) || isModerator());
    }

    match /posts/{postId} {
      allow read, list: if true;
      allow create: if request.auth != null && request.resource.data.uid == request.auth.uid;
      allow update: if request.auth != null && (
        (isOwner(resource) && isValidUpdate(resource)) ||
        (request.resource.data.diff(resource.data).changedKeys().hasAny(['upvotes', 'downvotes', 'commentCount', 'pinnedCommentId']))
      );
      allow delete: if request.auth != null && (isOwner(resource) || isModerator());

      match /comments/{commentId} {
        allow read, list: if true;
        allow create: if request.auth != null && request.resource.data.uid == request.auth.uid;
        allow update: if request.auth != null && (
          (isOwner(resource) && isValidUpdate(resource)) ||
          (request.resource.data.diff(resource.data).changedKeys().hasAny(['upvotes', 'downvotes', 'replyCount']))
        );
        allow delete: if request.auth != null && (isOwner(resource) || isUser(get(/databases/$(database)/documents/posts/$(postId)).data.uid) || isModerator());
      }
    }

    match /products/{productId} {
      allow read, list: if true;
      allow create: if request.auth != null &&
                    request.resource.data.uid == request.auth.uid &&
                    get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isVerified == true;
      allow update: if request.auth != null && (
                    (resource.data.uid == request.auth.uid && get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isVerified == true) ||
                    request.resource.data.diff(resource.data).changedKeys().hasOnly(['rating', 'reviewCount'])
                    );
      allow delete: if request.auth != null &&
                    resource.data.uid == request.auth.uid &&
                    get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isVerified == true;

      match /reviews/{reviewId} {
        allow read, list: if true;
        allow create, update: if request.auth != null &&
                              reviewId == request.auth.uid &&
                              request.resource.data.uid == request.auth.uid &&
                              request.resource.data.rating >= 1 &&
                              request.resource.data.rating <= 5;
        allow delete: if request.auth != null && reviewId == request.auth.uid;
      }
    }

    match /marketplacePosts/{postId} {
      allow read, list: if true;
      allow create: if request.auth != null && request.resource.data.uid == request.auth.uid;
      allow update: if request.auth != null && (
        (isOwner(resource) && isValidUpdate(resource)) ||
        (request.resource.data.diff(resource.data).changedKeys().hasAny(['upvotes', 'downvotes', 'commentCount', 'pinnedCommentId']))
      );
      allow delete: if request.auth != null && (isOwner(resource) || isModerator());

      match /comments/{commentId} {
        allow read, list: if true;
        allow create: if request.auth != null && request.resource.data.uid == request.auth.uid;
        allow update: if request.auth != null && (
          (isOwner(resource) && isValidUpdate(resource)) ||
          (request.resource.data.diff(resource.data).changedKeys().hasAny(['upvotes', 'downvotes', 'replyCount']))
        );
        allow delete: if request.auth != null && (isOwner(resource) || isUser(get(/databases/$(database)/documents/marketplacePosts/$(postId)).data.uid) || isModerator());
      }
    }

    match /conversations/{conversationId} {
      allow get, update: if request.auth != null && request.auth.uid in resource.data.participants;
      allow list: if request.auth != null;
      allow create: if request.auth != null && request.auth.uid in request.resource.data.participants;

      match /messages/{messageId} {
        allow read: if request.auth != null && request.auth.uid in get(/databases/$(database)/documents/conversations/$(conversationId)).data.participants;
        allow create: if request.auth != null && request.auth.uid == request.resource.data.senderId &&
                       request.auth.uid in get(/databases/$(database)/documents/conversations/$(conversationId)).data.participants;
        allow update: if request.auth != null &&
                       request.auth.uid in get(/databases/$(database)/documents/conversations/$(conversationId)).data.participants &&
                       request.resource.data.diff(resource.data).changedKeys().hasOnly(['status']) &&
                       request.resource.data.status in ['delivered', 'read'];
      }
    }

    match /orders/{orderId} {
      allow read, list: if request.auth != null && resource.data.uid == request.auth.uid;
      allow create: if request.auth != null && request.resource.data.uid == request.auth.uid;
      allow update: if request.auth != null && (resource.data.uid == request.auth.uid || isAdmin());
    }

    match /{path=**}/comments/{commentId} {
      allow read, list: if true;
    }
  }
}