Error while query users with emails that contains +(plus) character

[Drendroyt]

New Issue Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.
• I can reproduce the issue with the latest versions of Parse Server and the Parse Swift SDK.

Issue Description

When I try to query object from my database (based on back4app) with email that contains +(plus) characters I got Parse Error "Object not found".
If I try to query objects with email that contains other special characters- "_" or "." everything working ok.

Steps to reproduce

• create _User object with email that contains +(plus) character. For example "[email protected]"
• fetch parse object from swift code (example with login below )

    func login(user: ParseUserObject) async throws {
        guard let email = user.email?.lowercased(), let password = user.password else {
            throw ParseError.Code.unknownError
        }
        // Fetch username from Parse(user provide only email/pass for login)
        var constraints = [QueryConstraint]()
        constraints.append(equalTo(key: "email", value: email))
        let query = ParseUserObject.query(constraints)
        let parseUser = try await query.first()
        // or you can use
        // let query = ParseUserObject.query("email" == email.lowercased())
        guard let username = parseUser.username else {
            throw ParseError.Code.unknownError
        }
        try await ParseUserObject.login(username: username, password: password)
        setIsAuthorized(true)
    }

Actual Outcome

try await query.first() throw an Parse Error (object not found)

Expected Outcome

Existing object

Environment

Xcode, iOS simulator (or physical iPhone), parse database based on back4app service

Client

• Parse Swift SDK version: 4.14.2
• Xcode version: 15.4
• Operating system (iOS, macOS, watchOS, etc.): iOS
• Operating system version: 18.0

Server

• Parse Server version: 3.10.0
• Operating system: Linux(maybe)
• Local or remote host (AWS, Azure, Google Cloud, Heroku, Digital Ocean, etc): back4app server

Database

• System (MongoDB or Postgres): MongoDB
• Database version: 3.6
• Local or remote host (MongoDB Atlas, mLab, AWS, Azure, Google Cloud, etc): back4app server

Logs

▿ ParseError code=101 error=Object not found on the server.

• code : ParseSwift.ParseError.Code.objectNotFound
• message : "Object not found on the server."
• otherCode : nil
• error : nil

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[Drendroyt]

as workaround for someone ...
You can you back4app REST API and decode object manually.

   func getUserWithEmail(_ email: String) async throws -> ParseUserObject? {
        // Configure query json value
        let whereQuery: [String: Any] = ["email": email]
        let queryJSONData = try JSONSerialization.data(withJSONObject: whereQuery, options: [])
        guard let jsonString = String(data: queryJSONData, encoding: .utf8) else { throw URLError(.badURL) }
        
        // Configure url and encode "+" character manualy
        var urlComponents = URLComponents()
        urlComponents.scheme = "https"
        urlComponents.host = "parseapi.back4app.com"
        urlComponents.path = "/users"
        urlComponents.queryItems = [.init(name: "where", value: jsonString)]
        urlComponents.percentEncodedQuery = urlComponents.percentEncodedQuery?
            .replacingOccurrences(of: "+", with: "%2B")

        guard let url = urlComponents.url else { throw URLError(.badURL) }
        
        // Performing request
        var request = URLRequest(url: url)
        request.httpMethod = "GET"
        
        guard let appID = Bundle.main.object(forInfoDictionaryKey: "ParseAppID") as? String,
              let restApiKey = Bundle.main.object(forInfoDictionaryKey: "ParseRestApiKey") as? String
        else {
            fatalError("Cannot find Parse SDK credentials")
        }
        
        request.addValue(appID, forHTTPHeaderField: "X-Parse-Application-Id")
        request.addValue(restApiKey, forHTTPHeaderField: "X-Parse-REST-API-Key")
        
        let (data, response) = try await URLSession.shared.data(for: request)
        
        guard let httpResponse = response as? HTTPURLResponse,
              (200...299).contains(httpResponse.statusCode)
        else {
            throw URLError(.badServerResponse)
        }
        let resposeArray = try JSONDecoder().decode(ParseResponse<ParseUserObject>.self, from: data)
        guard let parseUser = resposeArray.results.first else { throw ParseError.Code.userWithEmailNotFound}
        return parseUser
    }

struct ParseResponse<T>: Codable where T: Codable {
    let results: [T]
}

struct ParseUserObject: ParseUser {
    enum CodingKeys: String, CodingKey {
        case username, email, emailVerified, password, authData, originalData
        case objectId, createdAt, updatedAt, ACL, displayName
    }
        
    var username: String?
    var email: String?
    var emailVerified: Bool?
    var password: String?
    var authData: [String : [String : String]?]?
    var originalData: Data?
    var objectId: String?
    var createdAt: Date?
    var updatedAt: Date?
    var ACL: ParseACL?
    var displayName: String?
    
    init() {}
    
    init(from decoder: Decoder) throws {
        let container = try decoder.container(keyedBy: CodingKeys.self)
        self.username = try container.decodeIfPresent(String.self, forKey: .username)
        self.email = try container.decodeIfPresent(String.self, forKey: .email)
        self.emailVerified = try container.decodeIfPresent(Bool.self, forKey: .emailVerified)
        self.password = try container.decodeIfPresent(String.self, forKey: .password)
        self.authData = try container.decodeIfPresent([String: [String: String]?].self, forKey: .authData)
        self.originalData = try container.decodeIfPresent(Data.self, forKey: .originalData)
        self.objectId = try container.decodeIfPresent(String.self, forKey: .objectId)
        self.ACL = try container.decodeIfPresent(ParseACL.self, forKey: .ACL)
        self.displayName = try container.decodeIfPresent(String.self, forKey: .displayName)
        self.createdAt = try? container.decodeIfPresent(Date.self, forKey: .createdAt)
        self.updatedAt = try? container.decodeIfPresent(Date.self, forKey: .updatedAt)
    }
}

extension ParseUserObject {
    init(email: String, password: String) {
        self.email = email
        self.password = password
    }
}