// ContextMiddleware will add our variables to the per-request context.
func ContextMiddleware(vars *Vars) web.MiddlewareType {
mfn := func(c *web.C, h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
ctx := context.Background()
ctx = datastore.NewContext(ctx, vars.ds)
ctx = log.NewContext(ctx, vars.log)
// Add the context to the goji web context
webcontext.Set(c, ctx)
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
return mfn
}
func main() {
log.Printf("initializing project_name=%q version=%q revision=%q",
conf.ProjectName,
conf.Version,
conf.Revision)
// Connect to the database.
db, err := database.Connect(conf.C.DbType, conf.C.DbConn)
if err != nil {
log.Printf("could not connect to database err=%q db_type=%q db_conn=%q",
err,
conf.C.DbType,
conf.C.DbConn)
return
}
// Create datastore.
ds := database.NewDatastore(db)
// Create API router and add middleware.
apiMux := router.API()
apiMux.Use(middleware.Options)
apiMux.Use(middleware.JSON)
// Create web router.
webMux := router.Web()
// Create root mux and add common middleware.
rootMux := goji.NewMux()
rootMux.UseC(middleware.RequestID)
rootMux.UseC(middleware.Logger)
rootMux.UseC(middleware.Recoverer)
rootMux.Use(middleware.SetHeaders)
// Serve all static assets from the root.
serveAssetAt := func(asset, path string) {
info, _ := static.AssetInfo(asset)
modTime := info.ModTime()
data := static.MustAsset(asset)
webMux.Handle(pat.Get(path), http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Printf("debug: serving asset: %s", asset)
http.ServeContent(w, r, asset, modTime, bytes.NewReader(data))
}))
}
for _, asset := range static.AssetNames() {
log.Printf("debug: adding route for asset: %s", asset)
serveAssetAt(asset, "/static/"+asset)
}
// Special case a bunch of assets that should be served from the root.
for _, asset := range []string{
"clientaccesspolicy.xml",
"crossdomain.xml",
"favicon.ico",
"humans.txt",
"robots.txt",
} {
// Note: only serve if we have this asset.
if _, err := static.Asset(asset); err == nil {
log.Printf("debug: adding special route for asset: %s", asset)
serveAssetAt(asset, "/"+asset)
}
}
// Serve the index page if we have one.
for _, asset := range []string{"index.html", "index.htm"} {
// Note: only serve if we have this asset, and only serve the first
// option.
if _, err := static.Asset(asset); err == nil {
log.Printf("debug: adding index route for asset: %s", asset)
serveAssetAt(asset, "/")
break
}
}
// Mount the API/Web muxes last (since order matters).
rootMux.HandleC(pat.New("/api/*"), apiMux)
rootMux.HandleC(pat.New("/*"), webMux)
// Create a top-level wrapper that implements ServeHTTP, so we can inject
// the root (Background) context and any other contexts that we wish to
// inject.
outer := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := context.Background()
ctx = datastore.NewContext(ctx, ds)
rootMux.ServeHTTPC(ctx, w, r)
})
// Start serving
log.Printf("starting server on: %s", conf.C.HostString())
graceful.Run(conf.C.HostString(), 10*time.Second, outer)
log.Printf("server finished")
}