// Compile or copy in our assets from src into the public assets folder, for use by the app
func setupAssets(server *server.Server) {
defer server.Timef("#info Finished loading assets in %s", time.Now())
// Compilation of assets is done on deploy
// We just load them here
assetsCompiled := server.ConfigBool("assets_compiled")
appAssets = assets.New(assetsCompiled)
// Load asset details from json file on each run
err := appAssets.Load()
if err != nil {
// Compile assets for the first time
server.Logf("#info Compiling assets")
err := appAssets.Compile("src", "public")
if err != nil {
server.Fatalf("#error compiling assets %s", err)
}
}
// Set up helpers which are aware of fingerprinted assets
// These behave differently depending on the compile flag above
// when compile is set to no, they use precompiled assets
// otherwise they serve all files in a group separately
view.Helpers["style"] = appAssets.StyleLink
view.Helpers["script"] = appAssets.ScriptLink
}
// Setup sets up our application
func Setup(server *server.Server) {
// Setup log
server.Logger = log.New(server.Config("log"), server.Production())
// Set up our assets
setupAssets(server)
// Setup our view templates
setupView(server)
// Setup our database
setupDatabase(server)
// Routing
router, err := router.New(server.Logger, server)
if err != nil {
server.Fatalf("Error creating router %s", err)
}
// Setup our authentication and authorisation
authorise.Setup(server)
// Add a prefilter to store the current user on the context, so that we only fetch it once
// We use this below in Resource, and also in views to determine current user attributes
router.AddFilter(authorise.CurrentUserFilter)
// Add an authenticity token filter to write out a secret token for each request (CSRF protection)
router.AddFilter(authorise.AuthenticityTokenFilter)
// Setup our router and handlers
setupRoutes(router)
}
// Setup db - at present query pkg manages this...
func setupDatabase(server *server.Server) {
defer server.Timef("#info Finished opening in %s database %s for user %s", time.Now(), server.Config("db"), server.Config("db_user"))
config := server.Configuration()
options := map[string]string{
"adapter": config["db_adapter"],
"user": config["db_user"],
"password": config["db_pass"],
"db": config["db"],
}
// If host and port supplied in config, apply them
if len(config["db_host"]) > 0 {
options["host"] = config["db_host"]
}
if len(config["db_port"]) > 0 {
options["port"] = config["db_port"]
}
if len(config["db_params"]) > 0 {
options["params"] = config["db_params"]
}
// Ask query to open the database
err := query.OpenDatabase(options)
if err != nil {
server.Fatalf("Error reading database %s", err)
}
}
func setupView(server *server.Server) {
defer server.Timef("#info Finished loading templates in %s", time.Now())
view.Production = server.Production()
err := view.LoadTemplates()
if err != nil {
server.Fatalf("Error reading templates %s", err)
}
}
// Setup authentication and authorization keys for this app
func Setup(s *server.Server) {
// Set up our secret keys which we take from the config
// NB these are hex strings which we convert to bytes, for ease of presentation in secrets file
c := s.Configuration()
auth.HMACKey = auth.HexToBytes(c["hmac_key"])
auth.SecretKey = auth.HexToBytes(c["secret_key"])
auth.SessionName = "gohackernews"
// Enable https cookies on production server - we don't have https, so don't do this
// if s.Production() {
// auth.SecureCookies = true
// }
}
func setupView(server *server.Server) {
defer server.Timef("#info Finished loading templates in %s", time.Now())
// A very limited translation - would prefer to use editable.js
// instead and offer proper editing TODO: move to editable.js instead
view.Helpers["markup"] = markup
view.Helpers["timeago"] = timeago
view.Production = server.Production()
err := view.LoadTemplates()
if err != nil {
server.Fatalf("Error reading templates %s", err)
}
}
// setupServices sets up external services from our config file
func setupServices(server *server.Server) {
config := server.Configuration()
context := schedule.NewContext(server.Logger, server)
now := time.Now().UTC()
// Set up twitter if available, and schedule tweets
if config["twitter_secret"] != "" {
twitter.Setup(config["twitter_key"], config["twitter_secret"], config["twitter_token"], config["twitter_token_secret"])
tweetTime := time.Date(now.Year(), now.Month(), now.Day(), 11, 0, 0, 0, time.UTC)
tweetInterval := 12 * time.Hour // Daily check for new stories to tweet twice a day
// For testing
//tweetTime = now.Add(time.Second * 5)
schedule.At(storyactions.TweetTopStory, context, tweetTime, tweetInterval)
}
// Set up mail
if config["mail_secret"] != "" {
mail.Setup(config["mail_secret"], config["mail_from"])
// Schedule emails to go out at 09:00 every day, starting from the next occurance
emailTime := time.Date(now.Year(), now.Month(), now.Day(), 9, 0, 0, 0, time.UTC)
emailInterval := 24 * time.Hour // Daily check for new emails/texts to send
// For testing send immediately on launch
//emailTime = now.Add(time.Second * 2)
schedule.At(useractions.DailyEmail, context, emailTime, emailInterval)
}
}
// Setup db - at present query pkg manages this...
func setupDatabase(server *server.Server) {
defer server.Timef("#info Finished opening in %s database %s for user %s", time.Now(), server.Config("db"), server.Config("db_user"))
config := server.Configuration()
options := map[string]string{
"adapter": config["db_adapter"],
"user": config["db_user"],
"password": config["db_pass"],
"db": config["db"],
}
// Ask query to open the database
err := query.OpenDatabase(options)
if err != nil {
server.Fatalf("Error reading database %s", err)
}
}
// Setup sets up our application
func Setup(server *server.Server) {
// Setup log
server.Logger = log.New(server.Config("log"), server.Production())
// Set up our assets
setupAssets(server)
// Setup our view templates
setupView(server)
// Setup our database
setupDatabase(server)
// Routing
router, err := router.New(server.Logger, server)
if err != nil {
server.Fatalf("Error creating router %s", err)
}
// Setup our router and handlers
setupRoutes(router)
}