~evanj/cms

ref: wip/cache/listicles cms/cms.go -rw-r--r-- 3.1 KiB
2171152dEvan M Jones WIP 4 months ago
                                                                                
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// cms is a free and open source content management system.
package main

import (
	"log"
	"net/http"
	"os"
	"strings"

	"git.sr.ht/~evanj/cms/internal/c/content"
	"git.sr.ht/~evanj/cms/internal/c/contenttype"
	"git.sr.ht/~evanj/cms/internal/c/doc"
	"git.sr.ht/~evanj/cms/internal/c/file"
	"git.sr.ht/~evanj/cms/internal/c/hook"
	"git.sr.ht/~evanj/cms/internal/c/redirect"
	"git.sr.ht/~evanj/cms/internal/c/space"
	"git.sr.ht/~evanj/cms/internal/c/user"
	"git.sr.ht/~evanj/cms/internal/s/cache"
	"git.sr.ht/~evanj/cms/internal/s/db"
	webhook "git.sr.ht/~evanj/cms/internal/s/hook"
	"git.sr.ht/~evanj/cms/pkg/e3"
	_ "git.sr.ht/~evanj/embed" // For embedding static assets during build.
	"git.sr.ht/~evanj/security"
)

var (
	app *App

	port           = os.Getenv("PORT")
	dbtype         = os.Getenv("DBTYPE")
	dbcreds        = os.Getenv("DB")
	url            = os.Getenv("URL")
	secret         = os.Getenv("SECRET")
	memcacheKey    = os.Getenv("MEMCACHE_KEY")
	memcacheServer = os.Getenv("MEMCACHE_SERVER")
	e3user         = os.Getenv("E3_USER")
	e3pass         = os.Getenv("E3_PASS")
	e3url          = os.Getenv("E3_URL")
	signupEnabled  = os.Getenv("SIGNUP_ENABLE") == "true"
	staticDir      = os.Getenv("STATIC_DIR")
)

type App struct {
	log *log.Logger

	// NOTE: Concurrent read (only) is OK. This is never wrote (but defined on
	// server startup).
	handlers map[string]http.Handler
}

func (a *App) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	parts := strings.Split(r.URL.Path, "/")
	if len(parts) < 2 {
		http.NotFound(w, r)
		return
	}

	namespace := parts[1]
	if namespace == "" {
		namespace = "user"
	}

	h, ok := a.handlers[namespace]
	if !ok {
		http.NotFound(w, r)
		return
	}

	h.ServeHTTP(w, r)
}

func init() {
	w := os.Stdout
	applogger := log.New(w, "[cms] ", 0)

	db, err := db.New(
		log.New(w, "[cms:db] ", 0),
		dbtype,
		dbcreds,
		security.Default(secret),
	)
	if err != nil {
		applogger.Fatal(err)
	}
	if err := db.EnsureSetup(); err != nil {
		applogger.Fatal(err)
	}

	cacher, err := cache.New(
		log.New(w, "[cms:cache] ", 0),
		db,
		memcacheKey,
		memcacheServer,
	)
	if err != nil {
		applogger.Fatal(err)
	}

	fs := e3.New(e3user, e3pass, e3url)

	app = &App{
		applogger,
		map[string]http.Handler{
			"content": content.New(
				log.New(w, "[cms:content] ", 0),
				cacher,
				fs,
				webhook.New(log.New(w, "[cms:hook] ", 0), cacher),
				url,
			),
			"contenttype": contenttype.New(
				log.New(w, "[cms:contenttype] ", 0),
				cacher,
			),
			"space": space.New(
				log.New(w, "[cms:space] ", 0),
				cacher,
			),
			"user": user.New(
				log.New(w, "[cms:user] ", 0),
				cacher,
				signupEnabled,
			),
			"hook": hook.New(
				log.New(w, "[cms:hook] ", 0),
				cacher,
			),
			"file": file.New(
				log.New(w, "[cms:file] ", 0),
				cacher,
				fs,
				url,
			),
			"static": http.StripPrefix("/static", http.FileServer(http.Dir(staticDir))),
			"redirect": redirect.New(
				log.New(w, "[cms:redirect] ", 0),
				cacher,
			),
			"doc": doc.New(
				log.New(w, "[cms:doc] ", 0),
				cacher,
			),
		},
	}
}

func main() {
	app.log.Println("listening on", url)
	app.log.Fatal(http.ListenAndServe(port, app))
}