Handle CORS, Additional error cases, Simplified database

config.example.toml

@@ -4,3 +4,6 @@ token = "asd"
 redirect = false
 redirect_url = ""
 db_path = "./db/app.db"
+origins = [
+	"*"
+]

src/config.v

@@ -1,9 +1,10 @@
 module main
 
 import toml
+import os
 
 const (
-	path = './config.toml'
+	path = config_path()
 )
 
 struct Config {
@@ -13,14 +14,20 @@ struct Config {
 	redirect     bool
 	redirect_url string
 	db_path      string
+	origins      []string
 }
 
 fn (config Config) copy() Config {
 	return config
 }
 
-fn load_config() Config {
-	config := toml.parse_file(path) or { panic(err) }
+fn load_config() !Config {
+	if !os.is_file(path) {
+		return error('Config file does not exist or is not a file')
+	}
+	config := toml.parse_file(path) or {
+		return error('Error while parsing config file:\n' + err.msg())
+	}
 
 	return Config{
 		host: config.value('host').string()
@@ -29,5 +36,14 @@ fn load_config() Config {
 		redirect: config.value('redirect').bool()
 		redirect_url: config.value('redirect_url').string()
 		db_path: config.value('db_path').string()
+		origins: config.value('origins').array().as_strings()
 	}
 }
+
+fn config_path() string {
+	path_env := $env('CONFIG_PATH')
+	if path_env.trim_space().len != 0 {
+		return path_env
+	}
+	return './config.toml'
+}

src/database.v

@@ -1,20 +1,18 @@
 module main
 
+[table: 'Score']
 struct ScoreRes {
 pub mut:
-	id     int    [primary; sql: serial]
-	player string
-	score  int
-	time   i64
+	id     i64    [primary; sql: serial]
+	player string [nonull]
+	score  int    [nonull]
+	time   i64    [nonull]
 }
 
-fn (mut app App) create_tables() int {
-	return app.db.exec_none('CREATE TABLE IF NOT EXISTS ScoreRes (
-			id INTEGER PRIMARY KEY,
-			player TEXT NOT NULL,
-			score INTEGER NOT NULL,
-			time SQLITE_INT64_TYPE NOT NULL
-		)')
+fn (mut app App) create_tables() {
+	sql app.db {
+		create table ScoreRes
+	}
 }
 
 fn (mut app App) insert_score(score ScoreRes) ScoreRes {
@@ -29,7 +27,7 @@ fn (mut app App) insert_score(score ScoreRes) ScoreRes {
 
 fn (mut app App) get_scores() []ScoreRes {
 	return sql app.db {
-		select from ScoreRes order by score desc
+		select from ScoreRes order by score desc limit 1000
 	}
 }
 

src/main.v

@@ -18,7 +18,7 @@ fn main() {
 	mut app_config := Config{}
 
 	lock app.config {
-		app.config = load_config()
+		app.config = load_config() or { panic('Could not load config file: ' + err.msg()) }
 		app_config = app.config.copy()
 	}
 
@@ -33,12 +33,13 @@ fn main() {
 		panic(err)
 	}
 
-	sql_code := app.create_tables()
+	app.create_tables()
 
-	if sqlite.is_error(sql_code) {
-		println('Could not create tables!')
-		panic('Error code ' + sql_code.str())
-	}
+	// orm does not yet return Results
+	// if sqlite.is_error(sql_code) {
+	// 	println('Could not create tables!')
+	// 	panic('Error code ' + sql_code.str())
+	// }
 
 	mut host := '::'
 	if app_config.host != '' {

src/web.v

@@ -9,21 +9,24 @@ struct Status {
 	message string
 }
 
+[get; head]
 pub fn (mut app App) index() vweb.Result {
 	rlock app.config {
 		if app.config.redirect {
-			app.redirect(app.config.redirect_url)
+			return app.redirect(app.config.redirect_url)
 		}
 	}
 
-	return app.text('Hello :)')
+	return app.not_found()
 }
 
-['/api/v1/score/list']
+['/api/v1/score/list'; get; head]
 pub fn (mut app App) score_list() vweb.Result {
+	app.add_cors_headers()
+
 	if !app.auth() {
 		app.set_status(401, '')
-		return app.json(Status{401, 'OAuth token is missing'})
+		return app.json(Status{401, 'Access token is wrong or missing'})
 	}
 
 	scores := app.get_scores()
@@ -33,9 +36,11 @@ pub fn (mut app App) score_list() vweb.Result {
 
 ['/api/v1/score/submit'; post]
 pub fn (mut app App) score_submit() vweb.Result {
+	app.add_cors_headers()
+
 	if !app.auth() {
 		app.set_status(401, '')
-		return app.json(Status{401, 'OAuth token is missing'})
+		return app.json(Status{401, 'Access token is wrong or missing'})
 	}
 
 	body := json.decode(Score, app.req.data) or {
@@ -43,6 +48,18 @@ pub fn (mut app App) score_submit() vweb.Result {
 		return app.json(Status{400, 'Bad JSON object'})
 	}
 
+	if body.player.trim_space() == '' {
+		app.set_status(400, '')
+		return app.json(Status{400, 'Name cannot be empty'})
+	}
+
+	if body.score <= 0 {
+		app.set_status(400, '')
+		return app.json(Status{400, 'Illegal score'})
+	}
+
+	// TODO: Bad word filter
+
 	score := app.insert_score(ScoreRes{
 		player: body.player
 		score: body.score
@@ -52,6 +69,37 @@ pub fn (mut app App) score_submit() vweb.Result {
 	return app.json(score)
 }
 
+pub fn (mut app App) add_cors_headers() {
+	origin := app.get_header('origin')
+	mut origins := []string{}
+	rlock app.config {
+		origins = app.config.origins.clone()
+	}
+	default_origin := origins[0] or { '*' }
+	allowed_origin := if origins.any(it == origin) { origin } else { default_origin }
+
+	app.add_header('Access-Control-Allow-Origin', allowed_origin)
+	app.add_header('Access-Control-Allow-Methods', 'OPTIONS, HEAD, GET, POST')
+	app.add_header('Access-Control-Allow-Headers', 'Authorization, Content-Type')
+	app.add_header('Access-Control-Max-Age', '86400')
+}
+
+pub fn (mut app App) handle_cors() vweb.Result {
+	app.set_status(204, '')
+	app.add_cors_headers()
+	return app.ok('')
+}
+
+['/api/v1/score/list'; options]
+pub fn (mut app App) handle_score_list_cors() vweb.Result {
+	return app.handle_cors()
+}
+
+['/api/v1/score/submit'; options]
+pub fn (mut app App) handle_score_submit_cors() vweb.Result {
+	return app.handle_cors()
+}
+
 fn (mut app App) auth() bool {
 	auth_header := app.get_header('Authorization')
 	token := auth_header.after('Bearer ')