Move all web-related stuff to a new module

flag.go

@@ -41,9 +41,8 @@ func parseCliArgs() {
 		log.Fatal("Error: pass a wiki directory")
 	}
 
-	var err error
-	WikiDir, err = filepath.Abs(args[0])
-	cfg.WikiDir = WikiDir
+	wikiDir, err := filepath.Abs(args[0])
+	cfg.WikiDir = wikiDir
 	if err != nil {
 		log.Fatal(err)
 	}

http_admin.go

@@ -1,43 +0,0 @@
-package main
-
-import (
-	"github.com/bouncepaw/mycorrhiza/cfg"
-	"log"
-	"net/http"
-
-	"github.com/bouncepaw/mycorrhiza/user"
-	"github.com/bouncepaw/mycorrhiza/views"
-)
-
-// This is not init(), because user.AuthUsed is not set at init-stage.
-func initAdmin() {
-	if user.AuthUsed {
-		http.HandleFunc("/admin", handlerAdmin)
-		http.HandleFunc("/admin/shutdown", handlerAdminShutdown)
-		http.HandleFunc("/admin/reindex-users", handlerAdminReindexUsers)
-	}
-}
-
-func handlerAdmin(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	if user.CanProceed(rq, "admin") {
-		w.Header().Set("Content-Type", "text/html;charset=utf-8")
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte(base("Admin panel", views.AdminPanelHTML(), user.FromRequest(rq))))
-	}
-}
-
-func handlerAdminShutdown(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	if user.CanProceed(rq, "admin/shutdown") && rq.Method == "POST" {
-		log.Fatal("An admin commanded the wiki to shutdown")
-	}
-}
-
-func handlerAdminReindexUsers(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	if user.CanProceed(rq, "admin") && rq.Method == "POST" {
-		user.ReadUsersFromFilesystem()
-		http.Redirect(w, rq, "/hypha/"+cfg.UserHypha, http.StatusSeeOther)
-	}
-}

main.go

@@ -5,121 +5,18 @@
 package main
 
 import (
-	"fmt"
 	"github.com/bouncepaw/mycorrhiza/cfg"
-	"io"
-	"io/ioutil"
-	"log"
-	"net/http"
-	"net/url"
-	"os"
-	"strings"
-
-	"github.com/bouncepaw/mycorrhiza/assets"
 	"github.com/bouncepaw/mycorrhiza/files"
 	"github.com/bouncepaw/mycorrhiza/history"
 	"github.com/bouncepaw/mycorrhiza/hyphae"
 	"github.com/bouncepaw/mycorrhiza/shroom"
 	"github.com/bouncepaw/mycorrhiza/user"
-	"github.com/bouncepaw/mycorrhiza/views"
+	"github.com/bouncepaw/mycorrhiza/web"
+	"log"
+	"net/http"
+	"os"
 )
 
-// WikiDir is a rooted path to the wiki storage directory.
-var WikiDir string
-
-// HttpErr is used by many handlers to signal errors in a compact way.
-func HttpErr(w http.ResponseWriter, status int, name, title, errMsg string) {
-	log.Println(errMsg, "for", name)
-	w.Header().Set("Content-Type", "text/html;charset=utf-8")
-	w.WriteHeader(status)
-	fmt.Fprint(
-		w,
-		base(
-			title,
-			fmt.Sprintf(
-				`<main class="main-width"><p>%s. <a href="/page/%s">Go back to the hypha.<a></p></main>`,
-				errMsg,
-				name,
-			),
-			user.EmptyUser(),
-		),
-	)
-}
-
-// This part is present in all html documents.
-var base = views.BaseHTML
-
-func handlerStyle(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	if _, err := os.Stat(cfg.WikiDir + "/static/common.css"); err == nil {
-		http.ServeFile(w, rq, cfg.WikiDir+"/static/common.css")
-	} else {
-		w.Header().Set("Content-Type", "text/css;charset=utf-8")
-		w.Write([]byte(assets.DefaultCSS()))
-	}
-	if bytes, err := ioutil.ReadFile(cfg.WikiDir + "/static/custom.css"); err == nil {
-		w.Write(bytes)
-	}
-}
-
-func handlerToolbar(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	w.Header().Set("Content-Type", "text/javascript;charset=utf-8")
-	w.Write([]byte(assets.ToolbarJS()))
-}
-
-// handlerIcon serves the requested icon. All icons are distributed as part of the Mycorrhiza binary.
-//
-// See assets/assets/icon/ for icons themselves, see assets/assets.qtpl for their sources.
-func handlerIcon(w http.ResponseWriter, rq *http.Request) {
-	iconName := strings.TrimPrefix(rq.URL.Path, "/assets/icon/")
-	if iconName == "https" {
-		iconName = "http"
-	}
-	w.Header().Set("Content-Type", "image/svg+xml")
-	icon := func() string {
-		switch iconName {
-		case "gemini":
-			return assets.IconGemini()
-		case "mailto":
-			return assets.IconMailto()
-		case "gopher":
-			return assets.IconGopher()
-		case "feed":
-			return assets.IconFeed()
-		default:
-			return assets.IconHTTP()
-		}
-	}()
-	_, err := io.WriteString(w, icon)
-	if err != nil {
-		log.Println(err)
-	}
-
-}
-
-func handlerUserList(w http.ResponseWriter, rq *http.Request) {
-	w.Header().Set("Content-Type", "text/html;charset=utf-8")
-	w.WriteHeader(http.StatusOK)
-	w.Write([]byte(base("User list", views.UserListHTML(), user.FromRequest(rq))))
-}
-
-func handlerRobotsTxt(w http.ResponseWriter, rq *http.Request) {
-	w.Header().Set("Content-Type", "text/plain")
-	w.WriteHeader(http.StatusOK)
-	w.Write([]byte(
-		`User-agent: *
-Allow: /page/
-Allow: /recent-changes
-Disallow: /
-Crawl-delay: 5`))
-}
-
-func prepareRq(rq *http.Request) {
-	log.Println(rq.RequestURI)
-	rq.URL.Path = strings.TrimSuffix(rq.URL.Path, "/")
-}
-
 func main() {
 	parseCliArgs()
 
@@ -131,41 +28,20 @@ func main() {
 	}
 
 	log.Println("Running MycorrhizaWiki")
-	if err := os.Chdir(WikiDir); err != nil {
+	if err := os.Chdir(cfg.WikiDir); err != nil {
 		log.Fatal(err)
 	}
-	log.Println("Wiki storage directory is", WikiDir)
-	hyphae.Index(WikiDir)
+	log.Println("Wiki storage directory is", cfg.WikiDir)
+	hyphae.Index(cfg.WikiDir)
 	log.Println("Indexed", hyphae.Count(), "hyphae")
 
-	// Initialize user database
 	user.InitUserDatabase()
 
-	history.Start(WikiDir)
+	history.Start(cfg.WikiDir)
 	shroom.SetHeaderLinks()
 
 	go handleGemini()
 
-	// See http_admin.go for /admin, /admin/*
-	initAdmin()
-	// See http_readers.go for /page/, /hypha/, /text/, /binary/, /attachment/
-	// See http_mutators.go for /upload-binary/, /upload-text/, /edit/, /delete-ask/, /delete-confirm/, /rename-ask/, /rename-confirm/, /unattach-ask/, /unattach-confirm/
-	// See http_auth.go for /login, /login-data, /logout, /logout-confirm
-	http.HandleFunc("/user-list/", handlerUserList)
-	// See http_history.go for /history/, /recent-changes
-	// See http_stuff.go for list, reindex, update-header-links, random, about
-	http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir(WikiDir+"/static"))))
-	http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, rq *http.Request) {
-		http.ServeFile(w, rq, WikiDir+"/static/favicon.ico")
-	})
-	http.HandleFunc("/static/common.css", handlerStyle)
-	http.HandleFunc("/static/toolbar.js", handlerToolbar)
-	http.HandleFunc("/assets/icon/", handlerIcon)
-	http.HandleFunc("/robots.txt", handlerRobotsTxt)
-	http.HandleFunc("/", func(w http.ResponseWriter, rq *http.Request) {
-		addr, _ := url.Parse("/hypha/" + cfg.HomeHypha) // Let's pray it never fails
-		rq.URL = addr
-		handlerHypha(w, rq)
-	})
+	web.Init()
 	log.Fatal(http.ListenAndServe("0.0.0.0:"+cfg.HTTPPort, nil))
 }

name.go

@@ -1,9 +1,7 @@
 package main
 
 import (
-	"github.com/bouncepaw/mycorrhiza/cfg"
 	"log"
-	"net/http"
 	"strings"
 
 	"git.sr.ht/~adnano/go-gemini"
@@ -11,18 +9,6 @@ import (
 	"github.com/bouncepaw/mycorrhiza/util"
 )
 
-// HyphaNameFromRq extracts hypha name from http request. You have to also pass the action which is embedded in the url or several actions. For url /hypha/hypha, the action would be "hypha".
-func HyphaNameFromRq(rq *http.Request, actions ...string) string {
-	p := rq.URL.Path
-	for _, action := range actions {
-		if strings.HasPrefix(p, "/"+action+"/") {
-			return util.CanonicalName(strings.TrimPrefix(p, "/"+action+"/"))
-		}
-	}
-	log.Println("HyphaNameFromRq: this request is invalid, fallback to home hypha")
-	return cfg.HomeHypha
-}
-
 // geminiHyphaNameFromRq extracts hypha name from gemini request. You have to also pass the action which is embedded in the url or several actions. For url /hypha/hypha, the action would be "hypha".
 func geminiHyphaNameFromRq(rq *gemini.Request, actions ...string) string {
 	p := rq.URL.Path

util/util.go

@@ -4,12 +4,18 @@ import (
 	"crypto/rand"
 	"encoding/hex"
 	"github.com/bouncepaw/mycorrhiza/cfg"
+	"log"
 	"net/http"
 	"regexp"
 	"strings"
 	"unicode"
 )
 
+func PrepareRq(rq *http.Request) {
+	log.Println(rq.RequestURI)
+	rq.URL.Path = strings.TrimSuffix(rq.URL.Path, "/")
+}
+
 // LettersNumbersOnly keeps letters and numbers only in the given string.
 func LettersNumbersOnly(s string) string {
 	var (
@@ -93,3 +99,15 @@ func IsCanonicalName(name string) bool {
 func IsPossibleUsername(username string) bool {
 	return UsernamePattern.MatchString(strings.TrimSpace(username))
 }
+
+// HyphaNameFromRq extracts hypha name from http request. You have to also pass the action which is embedded in the url or several actions. For url /hypha/hypha, the action would be "hypha".
+func HyphaNameFromRq(rq *http.Request, actions ...string) string {
+	p := rq.URL.Path
+	for _, action := range actions {
+		if strings.HasPrefix(p, "/"+action+"/") {
+			return CanonicalName(strings.TrimPrefix(p, "/"+action+"/"))
+		}
+	}
+	log.Println("HyphaNameFromRq: this request is invalid, fallback to home hypha")
+	return cfg.HomeHypha
+}

web/http_admin.go

@@ -0,0 +1,44 @@
+package web
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/bouncepaw/mycorrhiza/cfg"
+	"github.com/bouncepaw/mycorrhiza/user"
+	"github.com/bouncepaw/mycorrhiza/util"
+	"github.com/bouncepaw/mycorrhiza/views"
+)
+
+// InitAdmin sets up /admin routes if auth is used. Call it after you have decided if you want to use auth.
+func InitAdmin() {
+	if user.AuthUsed {
+		http.HandleFunc("/admin", HandlerAdmin)
+		http.HandleFunc("/admin/shutdown", HandlerAdminShutdown)
+		http.HandleFunc("/admin/reindex-users", HandlerAdminReindexUsers)
+	}
+}
+
+func HandlerAdmin(w http.ResponseWriter, rq *http.Request) {
+	util.PrepareRq(rq)
+	if user.CanProceed(rq, "admin") {
+		w.Header().Set("Content-Type", "text/html;charset=utf-8")
+		w.WriteHeader(http.StatusOK)
+		w.Write([]byte(views.BaseHTML("Admin panel", views.AdminPanelHTML(), user.FromRequest(rq))))
+	}
+}
+
+func HandlerAdminShutdown(w http.ResponseWriter, rq *http.Request) {
+	util.PrepareRq(rq)
+	if user.CanProceed(rq, "admin/shutdown") && rq.Method == "POST" {
+		log.Fatal("An admin commanded the wiki to shutdown")
+	}
+}
+
+func HandlerAdminReindexUsers(w http.ResponseWriter, rq *http.Request) {
+	util.PrepareRq(rq)
+	if user.CanProceed(rq, "admin") && rq.Method == "POST" {
+		user.ReadUsersFromFilesystem()
+		http.Redirect(w, rq, "/hypha/"+cfg.UserHypha, http.StatusSeeOther)
+	}
+}

web/http_auth.go

@@ -1,4 +1,4 @@
-package main
+package web
 
 import (
 	"github.com/bouncepaw/mycorrhiza/cfg"
@@ -20,14 +20,14 @@ func init() {
 }
 
 func handlerRegister(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	if !cfg.UseRegistration {
 		w.WriteHeader(http.StatusForbidden)
 	}
 	if rq.Method == http.MethodGet {
 		io.WriteString(
 			w,
-			base(
+			views.BaseHTML(
 				"Register",
 				views.RegisterHTML(rq),
 				user.FromRequest(rq),
@@ -61,7 +61,7 @@ func handlerLogout(w http.ResponseWriter, rq *http.Request) {
 		log.Println("Unknown user tries to log out")
 		w.WriteHeader(http.StatusForbidden)
 	}
-	w.Write([]byte(base("Logout?", views.LogoutHTML(can), u)))
+	w.Write([]byte(views.BaseHTML("Logout?", views.LogoutHTML(can), u)))
 }
 
 func handlerLogoutConfirm(w http.ResponseWriter, rq *http.Request) {
@@ -70,26 +70,26 @@ func handlerLogoutConfirm(w http.ResponseWriter, rq *http.Request) {
 }
 
 func handlerLoginData(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
 		username = util.CanonicalName(rq.PostFormValue("username"))
 		password = rq.PostFormValue("password")
 		err      = user.LoginDataHTTP(w, rq, username, password)
 	)
 	if err != "" {
-		w.Write([]byte(base(err, views.LoginErrorHTML(err), user.EmptyUser())))
+		w.Write([]byte(views.BaseHTML(err, views.LoginErrorHTML(err), user.EmptyUser())))
 	} else {
 		http.Redirect(w, rq, "/", http.StatusSeeOther)
 	}
 }
 
 func handlerLogin(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	w.Header().Set("Content-Type", "text/html;charset=utf-8")
 	if user.AuthUsed {
 		w.WriteHeader(http.StatusOK)
 	} else {
 		w.WriteHeader(http.StatusForbidden)
 	}
-	w.Write([]byte(base("Login", views.LoginHTML(), user.EmptyUser())))
+	w.Write([]byte(views.BaseHTML("Login", views.LoginHTML(), user.EmptyUser())))
 }

web/http_history.go

@@ -1,4 +1,4 @@
-package main
+package web
 
 import (
 	"fmt"
@@ -23,8 +23,8 @@ func init() {
 
 // handlerHistory lists all revisions of a hypha
 func handlerHistory(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	hyphaName := HyphaNameFromRq(rq, "history")
+	util.PrepareRq(rq)
+	hyphaName := util.HyphaNameFromRq(rq, "history")
 	var list string
 
 	// History can be found for files that do not exist anymore.
@@ -35,25 +35,25 @@ func handlerHistory(w http.ResponseWriter, rq *http.Request) {
 	log.Println("Found", len(revs), "revisions for", hyphaName)
 
 	util.HTTP200Page(w,
-		base(hyphaName, views.HistoryHTML(rq, hyphaName, list), user.FromRequest(rq)))
+		views.BaseHTML(hyphaName, views.HistoryHTML(rq, hyphaName, list), user.FromRequest(rq)))
 }
 
 // Recent changes
 func handlerRecentChanges(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
 		noPrefix = strings.TrimPrefix(rq.URL.String(), "/recent-changes/")
 		n, err   = strconv.Atoi(noPrefix)
 	)
 	if err == nil && n < 101 {
-		util.HTTP200Page(w, base(strconv.Itoa(n)+" recent changes", views.RecentChangesHTML(n), user.FromRequest(rq)))
+		util.HTTP200Page(w, views.BaseHTML(strconv.Itoa(n)+" recent changes", views.RecentChangesHTML(n), user.FromRequest(rq)))
 	} else {
 		http.Redirect(w, rq, "/recent-changes/20", http.StatusSeeOther)
 	}
 }
 
 func genericHandlerOfFeeds(w http.ResponseWriter, rq *http.Request, f func() (string, error), name string) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	if content, err := f(); err != nil {
 		w.Header().Set("Content-Type", "text/plain;charset=utf-8")
 		w.WriteHeader(http.StatusInternalServerError)

web/http_mutators.go

@@ -1,4 +1,4 @@
-package main
+package web
 
 import (
 	"fmt"
@@ -35,9 +35,9 @@ func factoryHandlerAsker(
 	succPageTemplate func(*http.Request, string, bool) string,
 ) func(http.ResponseWriter, *http.Request) {
 	return func(w http.ResponseWriter, rq *http.Request) {
-		prepareRq(rq)
+		util.PrepareRq(rq)
 		var (
-			hyphaName = HyphaNameFromRq(rq, actionPath)
+			hyphaName = util.HyphaNameFromRq(rq, actionPath)
 			h         = hyphae.ByName(hyphaName)
 			u         = user.FromRequest(rq)
 		)
@@ -52,7 +52,7 @@ func factoryHandlerAsker(
 		}
 		util.HTTP200Page(
 			w,
-			base(
+			views.BaseHTML(
 				fmt.Sprintf(succTitleTemplate, hyphaName),
 				succPageTemplate(rq, hyphaName, h.Exists),
 				u))
@@ -85,9 +85,9 @@ func factoryHandlerConfirmer(
 	confirmer func(*hyphae.Hypha, *user.User, *http.Request) (*history.HistoryOp, string),
 ) func(http.ResponseWriter, *http.Request) {
 	return func(w http.ResponseWriter, rq *http.Request) {
-		prepareRq(rq)
+		util.PrepareRq(rq)
 		var (
-			hyphaName = HyphaNameFromRq(rq, actionPath)
+			hyphaName = util.HyphaNameFromRq(rq, actionPath)
 			h         = hyphae.ByName(hyphaName)
 			u         = user.FromRequest(rq)
 		)
@@ -129,9 +129,9 @@ var handlerRenameConfirm = factoryHandlerConfirmer(
 
 // handlerEdit shows the edit form. It doesn't edit anything actually.
 func handlerEdit(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
-		hyphaName    = HyphaNameFromRq(rq, "edit")
+		hyphaName    = util.HyphaNameFromRq(rq, "edit")
 		h            = hyphae.ByName(hyphaName)
 		warning      string
 		textAreaFill string
@@ -158,7 +158,7 @@ func handlerEdit(w http.ResponseWriter, rq *http.Request) {
 	}
 	util.HTTP200Page(
 		w,
-		base(
+		views.BaseHTML(
 			"Edit "+hyphaName,
 			views.EditHTML(rq, hyphaName, textAreaFill, warning),
 			u))
@@ -166,9 +166,9 @@ func handlerEdit(w http.ResponseWriter, rq *http.Request) {
 
 // handlerUploadText uploads a new text part for the hypha.
 func handlerUploadText(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
-		hyphaName = HyphaNameFromRq(rq, "upload-text")
+		hyphaName = util.HyphaNameFromRq(rq, "upload-text")
 		h         = hyphae.ByName(hyphaName)
 		textData  = rq.PostFormValue("text")
 		action    = rq.PostFormValue("action")
@@ -190,7 +190,7 @@ func handlerUploadText(w http.ResponseWriter, rq *http.Request) {
 	if action == "Preview" {
 		util.HTTP200Page(
 			w,
-			base(
+			views.BaseHTML(
 				"Preview "+hyphaName,
 				views.PreviewHTML(
 					rq,
@@ -206,10 +206,10 @@ func handlerUploadText(w http.ResponseWriter, rq *http.Request) {
 
 // handlerUploadBinary uploads a new binary part for the hypha.
 func handlerUploadBinary(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	rq.ParseMultipartForm(10 << 20) // Set upload limit
 	var (
-		hyphaName          = HyphaNameFromRq(rq, "upload-binary")
+		hyphaName          = util.HyphaNameFromRq(rq, "upload-binary")
 		h                  = hyphae.ByName(hyphaName)
 		u                  = user.FromRequest(rq)
 		file, handler, err = rq.FormFile("binary")

web/http_readers.go

@@ -1,4 +1,4 @@
-package main
+package web
 
 import (
 	"fmt"
@@ -29,9 +29,9 @@ func init() {
 }
 
 func handlerAttachment(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
-		hyphaName = HyphaNameFromRq(rq, "attachment")
+		hyphaName = util.HyphaNameFromRq(rq, "attachment")
 		h         = hyphae.ByName(hyphaName)
 		u         = user.FromRequest(rq)
 	)
@@ -43,7 +43,7 @@ func handlerAttachment(w http.ResponseWriter, rq *http.Request) {
 }
 
 func handlerPrimitiveDiff(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
 		shorterUrl      = strings.TrimPrefix(rq.URL.Path, "/primitive-diff/")
 		firstSlashIndex = strings.IndexRune(shorterUrl, '/')
@@ -61,7 +61,7 @@ func handlerPrimitiveDiff(w http.ResponseWriter, rq *http.Request) {
 
 // handlerRevision displays a specific revision of text part a page
 func handlerRevision(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
 		shorterUrl        = strings.TrimPrefix(rq.URL.Path, "/rev/")
 		firstSlashIndex   = strings.IndexRune(shorterUrl, '/')
@@ -83,13 +83,13 @@ func handlerRevision(w http.ResponseWriter, rq *http.Request) {
 	)
 	w.Header().Set("Content-Type", "text/html;charset=utf-8")
 	w.WriteHeader(http.StatusOK)
-	w.Write([]byte(base(util.BeautifulName(hyphaName), page, u)))
+	w.Write([]byte(views.BaseHTML(util.BeautifulName(hyphaName), page, u)))
 }
 
 // handlerText serves raw source text of the hypha.
 func handlerText(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	hyphaName := HyphaNameFromRq(rq, "text")
+	util.PrepareRq(rq)
+	hyphaName := util.HyphaNameFromRq(rq, "text")
 	if h := hyphae.ByName(hyphaName); h.Exists {
 		log.Println("Serving", h.TextPath)
 		w.Header().Set("Content-Type", "text/plain; charset=utf-8")
@@ -99,8 +99,8 @@ func handlerText(w http.ResponseWriter, rq *http.Request) {
 
 // handlerBinary serves binary part of the hypha.
 func handlerBinary(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	hyphaName := HyphaNameFromRq(rq, "binary")
+	util.PrepareRq(rq)
+	hyphaName := util.HyphaNameFromRq(rq, "binary")
 	if h := hyphae.ByName(hyphaName); h.Exists {
 		log.Println("Serving", h.BinaryPath)
 		w.Header().Set("Content-Type", mimetype.FromExtension(filepath.Ext(h.BinaryPath)))
@@ -110,9 +110,9 @@ func handlerBinary(w http.ResponseWriter, rq *http.Request) {
 
 // handlerHypha is the main hypha action that displays the hypha and the binary upload form along with some navigation.
 func handlerHypha(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
-		hyphaName = HyphaNameFromRq(rq, "page", "hypha")
+		hyphaName = util.HyphaNameFromRq(rq, "page", "hypha")
 		h         = hyphae.ByName(hyphaName)
 		contents  string
 		openGraph string

web/http_stuff.go

@@ -1,5 +1,5 @@
 // http_stuff.go is used for meta stuff about the wiki or all hyphae at once.
-package main
+package web
 
 import (
 	"github.com/bouncepaw/mycorrhiza/cfg"
@@ -25,22 +25,22 @@ func init() {
 
 // handlerList shows a list of all hyphae in the wiki in random order.
 func handlerList(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
-	util.HTTP200Page(w, base("List of pages", views.HyphaListHTML(), user.FromRequest(rq)))
+	util.PrepareRq(rq)
+	util.HTTP200Page(w, views.BaseHTML("List of pages", views.HyphaListHTML(), user.FromRequest(rq)))
 }
 
 // handlerReindex reindexes all hyphae by checking the wiki storage directory anew.
 func handlerReindex(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	if ok := user.CanProceed(rq, "reindex"); !ok {
 		HttpErr(w, http.StatusForbidden, cfg.HomeHypha, "Not enough rights", "You must be an admin to reindex hyphae.")
 		log.Println("Rejected", rq.URL)
 		return
 	}
 	hyphae.ResetCount()
-	log.Println("Wiki storage directory is", WikiDir)
+	log.Println("Wiki storage directory is", cfg.WikiDir)
 	log.Println("Start indexing hyphae...")
-	hyphae.Index(WikiDir)
+	hyphae.Index(cfg.WikiDir)
 	log.Println("Indexed", hyphae.Count(), "hyphae")
 	http.Redirect(w, rq, "/", http.StatusSeeOther)
 }
@@ -49,7 +49,7 @@ func handlerReindex(w http.ResponseWriter, rq *http.Request) {
 //
 // See https://mycorrhiza.lesarbr.es/hypha/configuration/header
 func handlerUpdateHeaderLinks(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	if ok := user.CanProceed(rq, "update-header-links"); !ok {
 		HttpErr(w, http.StatusForbidden, cfg.HomeHypha, "Not enough rights", "You must be a moderator to update header links.")
 		log.Println("Rejected", rq.URL)
@@ -61,7 +61,7 @@ func handlerUpdateHeaderLinks(w http.ResponseWriter, rq *http.Request) {
 
 // handlerRandom redirects to a random hypha.
 func handlerRandom(w http.ResponseWriter, rq *http.Request) {
-	prepareRq(rq)
+	util.PrepareRq(rq)
 	var (
 		randomHyphaName string
 		amountOfHyphae  = hyphae.Count()
@@ -85,7 +85,7 @@ func handlerRandom(w http.ResponseWriter, rq *http.Request) {
 func handlerAbout(w http.ResponseWriter, rq *http.Request) {
 	w.Header().Set("Content-Type", "text/html;charset=utf-8")
 	w.WriteHeader(http.StatusOK)
-	_, err := io.WriteString(w, base("About "+cfg.WikiName, views.AboutHTML(), user.FromRequest(rq)))
+	_, err := io.WriteString(w, views.BaseHTML("About "+cfg.WikiName, views.AboutHTML(), user.FromRequest(rq)))
 	if err != nil {
 		log.Println(err)
 	}

web/web.go

@@ -0,0 +1,127 @@
+package web
+
+import (
+	"fmt"
+	"github.com/bouncepaw/mycorrhiza/assets"
+	"github.com/bouncepaw/mycorrhiza/cfg"
+	"github.com/bouncepaw/mycorrhiza/util"
+	"io"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+	"os"
+	"strings"
+
+	"github.com/bouncepaw/mycorrhiza/user"
+	"github.com/bouncepaw/mycorrhiza/views"
+)
+
+// HttpErr is used by many handlers to signal errors in a compact way.
+func HttpErr(w http.ResponseWriter, status int, name, title, errMsg string) {
+	log.Println(errMsg, "for", name)
+	w.Header().Set("Content-Type", "text/html;charset=utf-8")
+	w.WriteHeader(status)
+	fmt.Fprint(
+		w,
+		views.BaseHTML(
+			title,
+			fmt.Sprintf(
+				`<main class="main-width"><p>%s. <a href="/page/%s">Go back to the hypha.<a></p></main>`,
+				errMsg,
+				name,
+			),
+			user.EmptyUser(),
+		),
+	)
+}
+
+func handlerStyle(w http.ResponseWriter, rq *http.Request) {
+	util.PrepareRq(rq)
+	if _, err := os.Stat(cfg.WikiDir + "/static/common.css"); err == nil {
+		http.ServeFile(w, rq, cfg.WikiDir+"/static/common.css")
+	} else {
+		w.Header().Set("Content-Type", "text/css;charset=utf-8")
+		w.Write([]byte(assets.DefaultCSS()))
+	}
+	if bytes, err := ioutil.ReadFile(cfg.WikiDir + "/static/custom.css"); err == nil {
+		w.Write(bytes)
+	}
+}
+
+func handlerToolbar(w http.ResponseWriter, rq *http.Request) {
+	util.PrepareRq(rq)
+	w.Header().Set("Content-Type", "text/javascript;charset=utf-8")
+	w.Write([]byte(assets.ToolbarJS()))
+}
+
+// handlerIcon serves the requested icon. All icons are distributed as part of the Mycorrhiza binary.
+//
+// See assets/assets/icon/ for icons themselves, see assets/assets.qtpl for their sources.
+func handlerIcon(w http.ResponseWriter, rq *http.Request) {
+	iconName := strings.TrimPrefix(rq.URL.Path, "/assets/icon/")
+	if iconName == "https" {
+		iconName = "http"
+	}
+	w.Header().Set("Content-Type", "image/svg+xml")
+	icon := func() string {
+		switch iconName {
+		case "gemini":
+			return assets.IconGemini()
+		case "mailto":
+			return assets.IconMailto()
+		case "gopher":
+			return assets.IconGopher()
+		case "feed":
+			return assets.IconFeed()
+		default:
+			return assets.IconHTTP()
+		}
+	}()
+	_, err := io.WriteString(w, icon)
+	if err != nil {
+		log.Println(err)
+	}
+
+}
+
+func handlerUserList(w http.ResponseWriter, rq *http.Request) {
+	w.Header().Set("Content-Type", "text/html;charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(views.BaseHTML("User list", views.UserListHTML(), user.FromRequest(rq))))
+}
+
+func handlerRobotsTxt(w http.ResponseWriter, rq *http.Request) {
+	w.Header().Set("Content-Type", "text/plain")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(
+		`User-agent: *
+Allow: /page/
+Allow: /recent-changes
+Disallow: /
+Crawl-delay: 5`))
+}
+
+func Init() {
+	// See http_admin.go for /admin, /admin/*
+	InitAdmin()
+	// See http_readers.go for /page/, /hypha/, /text/, /binary/, /attachment/
+	// See http_mutators.go for /upload-binary/, /upload-text/, /edit/, /delete-ask/, /delete-confirm/, /rename-ask/, /rename-confirm/, /unattach-ask/, /unattach-confirm/
+	// See http_auth.go for /login, /login-data, /logout, /logout-confirm
+	http.HandleFunc("/user-list/", handlerUserList)
+	// See http_history.go for /history/, /recent-changes
+	// See http_stuff.go for list, reindex, update-header-links, random, about
+	http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir(cfg.WikiDir+"/static"))))
+	http.HandleFunc("/favicon.ico", func(w http.ResponseWriter, rq *http.Request) {
+		http.ServeFile(w, rq, cfg.WikiDir+"/static/favicon.ico")
+	})
+	http.HandleFunc("/static/common.css", handlerStyle)
+	http.HandleFunc("/static/toolbar.js", handlerToolbar)
+	http.HandleFunc("/assets/icon/", handlerIcon)
+	http.HandleFunc("/robots.txt", handlerRobotsTxt)
+	http.HandleFunc("/", func(w http.ResponseWriter, rq *http.Request) {
+		addr, _ := url.Parse("/hypha/" + cfg.HomeHypha) // Let's pray it never fails
+		rq.URL = addr
+		handlerHypha(w, rq)
+	})
+}