329 lines
11 KiB
Swift
329 lines
11 KiB
Swift
import Vapor
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/// The JSON encoder for responses
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private let encoder = JSONEncoder()
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/// The maximum length of a valid player name
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private let maximumPlayerNameLength = 40
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/// The maximum length of a valid password
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private let maximumPasswordLength = 40
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func encodeJSON<T>(_ response: T) throws -> String where T: Encodable {
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let data = try encoder.encode(response)
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return String(data: data, encoding: .utf8)!
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}
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func routes(_ app: Application) throws {
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// MARK: Players & Sessions
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/**
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Create a new player
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- Parameter name: The name of the player, included in the url
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- Parameter password: The password of the player, as a string in the request body
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- Throws:
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- 400: Missing name or password
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- 406: Password or name too long
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- 409: A player with the same name already exists
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- 424: The password could not be hashed
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- Returns: The session token for the registered user
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*/
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app.post("player", "register", ":name") { req -> String in
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guard let name = req.parameters.get("name"),
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let password = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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guard name.count < maximumPlayerNameLength,
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password.count < maximumPasswordLength else {
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throw Abort(.notAcceptable) // 406
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}
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guard let hash = try? req.password.hash(password) else {
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throw Abort(.failedDependency) // 424
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}
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guard let token = database.registerPlayer(named: name, hash: hash) else {
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throw Abort(.conflict) // 409
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}
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return token
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}
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/**
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Delete a player.
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- Parameter name: The name of the player, included in the url
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- Parameter password: The password of the player, as a string in the request body
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- Throws:
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- 400: Missing name or password
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- 403: The password or user name is invalid
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- 424: The password could not be hashed
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- Returns: Nothing
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*/
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app.post("player", "delete", ":name") { req -> String in
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guard let name = req.parameters.get("name"),
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let password = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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guard let hash = database.passwordHashForExistingPlayer(named: name) else {
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throw Abort(.forbidden) // 403
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}
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guard let isValid = try? req.password.verify(password, created: hash) else {
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throw Abort(.failedDependency) // 424
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}
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guard isValid else {
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throw Abort(.forbidden) // 403
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}
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database.deletePlayer(named: name)
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return ""
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}
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/**
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Log in as an existing player.
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- Parameter name: The name of the player, included in the url
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- Parameter password: The password of the player, as a string in the request body
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- Throws:
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- 400: Missing name or password
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- 403: The password or user name is invalid
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- 424: The password could not be hashed
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- Returns: The session token for the user
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*/
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app.post("player", "login", ":name") { req -> String in
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guard let name = req.parameters.get("name"),
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let password = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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guard let hash = database.passwordHashForExistingPlayer(named: name) else {
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throw Abort(.forbidden) // 403
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}
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guard let isValid = try? req.password.verify(password, created: hash) else {
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throw Abort(.failedDependency) // 424
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}
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guard isValid else {
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throw Abort(.forbidden) // 403
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}
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let token = database.startNewSessionForRegisteredPlayer(named: name)
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return token
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}
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/**
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Log in using a session token.
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- Parameter token: The session token of the player, as a string in the request body
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- Throws:
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- 400: Missing token
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- 401: The token is invalid
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- Returns: The player name associated with the session token
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*/
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app.post("player", "resume") { req -> String in
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guard let token = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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guard let player = database.registeredPlayerExists(withSessionToken: token) else {
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throw Abort(.unauthorized) // 401
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}
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return player
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}
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/**
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Log out.
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- Parameter name: The name of the player, included in the url
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- Parameter token: The session token of the player, as a string in the request body
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- Throws:
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- 400: Missing token
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- Returns: Nothing
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- Note: The request always succeeds when correctly formed, even for invalid and expired tokens
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*/
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app.post("player", "logout") { req -> String in
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guard let token = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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database.endSession(forSessionToken: token)
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return ""
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}
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/**
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Get the current table of the player, if one exists.
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- Parameter token: The session token of the player, as a string in the request body
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- Throws:
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- 400: Missing token
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- 401: Invalid token
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- Returns: The table info, or an empty string
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*/
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app.post("player", "table") { req -> String in
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guard let token = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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guard let player = database.registeredPlayerExists(withSessionToken: token) else {
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throw Abort(.unauthorized) // 401
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}
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guard let info = database.currentTableOfPlayer(named: player) else {
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return ""
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}
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return try encodeJSON(info)
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}
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/**
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Start a new websocket connection for the client to receive table updates from the server
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- Returns: Nothing
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- Note: The first (and only) message from the client over the connection must be a valid session token.
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*/
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app.webSocket("session", "start") { req, socket in
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socket.onText { socket, text in
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guard database.startSession(socket: socket, sessionToken: text) else {
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_ = socket.close()
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return
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}
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}
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}
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// MARK: Tables
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/**
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Create a new table.
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- Parameter visibility: Indicate a `"public"` or `"private"` table
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- Parameter token: The session token of the player, as a string in the request body
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- Returns: The table id
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- Throws:
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- 400: Missing token, table name or invalid visibility
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- 401: The session token is invalid
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*/
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app.post("table", "create", ":visibility", ":name") { req -> String in
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guard let visibility = req.parameters.get("visibility"),
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let tableName = req.parameters.get("name"),
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let token = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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let isPublic: Bool
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if visibility == "private" {
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isPublic = false
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} else if visibility == "public" {
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isPublic = true
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} else {
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throw Abort(.badRequest) // 400
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}
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guard let player = database.registeredPlayerExists(withSessionToken: token) else {
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throw Abort(.unauthorized) // 401
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}
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let table = database.createTable(named: tableName, player: player, isPublic: isPublic)
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return try encodeJSON(table)
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}
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/**
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List the public tables.
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- Parameter token: The session token of the player, as a string in the request body
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- Throws:
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- 400: Missing token
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- 403: The session token is invalid
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- Returns: A JSON object with a list of public tables (id, name, player list)
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*/
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app.post("tables", "public") { req -> String in
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guard let token = req.body.string else {
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throw Abort(.badRequest) // 400
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}
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guard database.isValid(sessionToken: token) else {
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throw Abort(.forbidden) // 403
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}
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let list = database.getPublicTableInfos()
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return try encodeJSON(list)
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}
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/**
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Join a table.
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- Parameter table: The table id
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- Parameter token: The session token of the player, as a string in the request body
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- Throws:
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- 400: Missing token
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- 401: The session token is invalid
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- 403: The player already sits at another table
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- 410: The table id doesn't exist
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- 417: The table is already full and can't be joined
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- Returns: Nothing
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*/
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app.post("table", "join", ":table") { req -> String in
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guard let table = req.parameters.get("table"),
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let token = req.body.string else {
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throw Abort(.badRequest)
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}
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switch database.join(tableId: table, playerToken: token) {
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case .success(let table):
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return try encodeJSON(table)
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case .failure(let result):
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switch result {
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case .invalidToken:
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throw Abort(.unauthorized) // 401
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case .alreadyJoinedOtherTable:
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throw Abort(.forbidden) // 403
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case .tableNotFound:
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throw Abort(.gone) // 410
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case .tableIsFull:
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throw Abort(.expectationFailed) // 417
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}
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}
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}
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/**
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Leave the current table.
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- Parameter token: The session token of the player, as a string in the request body
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- Throws:
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- 400: Missing token
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- 401: The session token is invalid
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- Returns: Nothing
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*/
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app.post("table", "leave") { req -> String in
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guard let token = req.body.string else {
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throw Abort(.badRequest)
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}
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guard database.leaveTable(playerToken: token) else {
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throw Abort(.unauthorized) // 401
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}
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return ""
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}
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app.post("player", "action", ":action") { req -> String in
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guard let token = req.body.string,
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let actionString = req.parameters.get("action") else {
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throw Abort(.badRequest)
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}
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let result: PlayerActionResult
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if let action = Player.Action(rawValue: actionString) {
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result = database.performAction(playerToken: token, action: action)
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} else if let game = GameType(rawValue: actionString) {
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result = database.select(game: game, playerToken: token)
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} else {
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throw Abort(.badRequest)
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}
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switch result {
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case .success:
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return ""
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case .invalidToken:
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throw Abort(.unauthorized) // 401
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case .noTableJoined:
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throw Abort(.preconditionFailed) // 412
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case .tableNotFull:
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throw Abort(.preconditionFailed) // 412
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case .tableStateInvalid:
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throw Abort(.preconditionFailed) // 412
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}
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}
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app.post("player", "card", ":card") { req -> String in
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guard let token = req.body.string,
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let cardId = req.parameters.get("card"),
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let card = Card(id: cardId) else {
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throw Abort(.badRequest)
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}
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switch database.play(card: card, playerToken: token) {
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case .success:
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return ""
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case .invalidToken:
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throw Abort(.unauthorized) // 401
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case .noTableJoined:
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throw Abort(.preconditionFailed) // 412
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case .invalidTableState:
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throw Abort(.preconditionFailed) // 412
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case .invalidCard:
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throw Abort(.preconditionFailed) // 412
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}
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}
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}
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