|
- package htmlhouse
-
- import (
- "database/sql"
- "fmt"
- "html/template"
- "io/ioutil"
- "net/http"
-
- "github.com/gorilla/mux"
- "github.com/writeas/impart"
- )
-
- type app struct {
- cfg *config
- router *mux.Router
- db *sql.DB
- session sessionManager
- templates map[string]*template.Template
- }
-
- func newApp() (*app, error) {
- var err error
-
- app := &app{}
-
- app.cfg, err = newConfig()
- if err != nil {
- return app, err
- }
-
- app.session, err = newSessionManager(app.cfg)
- if err != nil {
- return app, err
- }
-
- err = app.initDatabase()
- if err != nil {
- return app, err
- }
-
- app.initTemplates()
-
- app.initRouter()
-
- return app, nil
- }
-
- func (app *app) close() {
- app.db.Close()
- }
-
- func (app *app) initRouter() {
- app.router = mux.NewRouter()
-
- api := app.router.PathPrefix("/⌂/").Subrouter()
- api.HandleFunc("/create", app.handler(createHouse)).Methods("POST").Name("create")
- api.HandleFunc("/{house:[A-Za-z0-9.-]{8}}", app.handler(renovateHouse)).Methods("POST").Name("update")
-
- app.router.HandleFunc("/", app.handler(getEditor)).Methods("GET").Name("index")
- app.router.HandleFunc("/edit/{house:[A-Za-z0-9.-]{8}}.html", app.handler(getEditor)).Methods("GET").Name("edit")
- app.router.HandleFunc("/stats/{house:[A-Za-z0-9.-]{8}}.html", app.handler(viewHouseStats)).Methods("GET").Name("stats")
- app.router.HandleFunc("/{house:[A-Za-z0-9.-]{8}}.html", app.handler(getHouse)).Methods("GET").Name("get")
- app.router.HandleFunc("/browse", app.handler(viewHouses)).Methods("GET").Name("browse")
- app.router.PathPrefix("/").Handler(http.FileServer(http.Dir(app.cfg.StaticDir)))
- }
-
- type EditorPage struct {
- ID string
- Content string
- }
-
- func getEditor(app *app, w http.ResponseWriter, r *http.Request) error {
- vars := mux.Vars(r)
- house := vars["house"]
-
- if house == "" {
- defaultPage, err := ioutil.ReadFile(app.cfg.StaticDir + "/default.html")
- if err != nil {
- fmt.Printf("\n%s\n", err)
- defaultPage = []byte("<!DOCTYPE html>\n<html>\n</html>")
- }
- app.templates["editor"].ExecuteTemplate(w, "editor", &EditorPage{"", string(defaultPage)})
-
- return nil
- }
-
- html, err := getHouseHTML(app, house)
- if err != nil {
- return err
- }
-
- app.templates["editor"].ExecuteTemplate(w, "editor", &EditorPage{house, html})
- return nil
- }
-
- type handlerFunc func(app *app, w http.ResponseWriter, r *http.Request) error
-
- func (app *app) handler(h handlerFunc) http.HandlerFunc {
- return func(w http.ResponseWriter, r *http.Request) {
- handleError(w, r, func() error {
- return h(app, w, r)
- }())
- }
- }
-
- func handleError(w http.ResponseWriter, r *http.Request, err error) {
- if err == nil {
- return
- }
-
- if err, ok := err.(impart.HTTPError); ok {
- impart.WriteError(w, err)
- return
- }
-
- impart.WriteError(w, impart.HTTPError{http.StatusInternalServerError, "This is an unhelpful error message for a miscellaneous internal error."})
- }
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