Move commands under cmd/

author: Přemysl Janouch <p@janouch.name> 2019-04-14 22:30:40 +0200
committer: Přemysl Janouch <p@janouch.name> 2019-04-14 22:30:40 +0200
commit: 1331f3b5642f521236fcb1ec21ee43d5b76c0b91 (patch)
tree: 1213c2f2014cf0eff5a4a881b02cbebf91a604b8 /sklad
parent: 7d9410c6b3a724e3670941f7ec2d00e7966d0b1a (diff)
download: sklad-1331f3b5642f521236fcb1ec21ee43d5b76c0b91.tar.gz
sklad-1331f3b5642f521236fcb1ec21ee43d5b76c0b91.tar.xz
sklad-1331f3b5642f521236fcb1ec21ee43d5b76c0b91.zip
9 files changed, 0 insertions, 840 deletions
diff --git a/sklad/base.tmpl b/sklad/base.tmpl
deleted file mode 100644
index d92a818..0000000
--- a/sklad/base.tmpl
+++ /dev/null
@@ -1,68 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-	<title>{{ template "Title" . }} - sklad</title>
-	<meta http-equiv=Content-Type content="text/html; charset=utf-8">
-	<meta name=viewport content="width=device-width, initial-scale=1">
-	<style>
-	html, body { min-height: 100vh; }
-	body { padding: 1rem; box-sizing: border-box;
-		margin: 0 auto; max-width: 50rem;
-		border-left: 1px solid #ccc; border-right: 1px solid #ccc;
-		font-family: sans-serif; }
-
-	section { border: 1px outset #ccc; padding: 0 .5rem; margin: 1rem 0; }
-	section > p { margin: 0 0 .5rem 0; }
-
-	header, footer { display: flex; justify-content: space-between;
-		align-items: center; flex-wrap: wrap; padding-top: .5em; }
-	header { margin: 0 -.5rem; padding: .5rem .5rem 0 .5rem;
-		background: linear-gradient(0deg, transparent, #f8f8f8); }
-	body > header { margin: -1rem -1rem 0 -1rem; padding: 1rem 1rem 0 1rem;
-		background: linear-gradient(0deg, transparent, #eeeeee); }
-
-	header *,
-	footer * { display: inline-block; }
-	header > *,
-	footer > * { margin: 0 0 .5rem 0; }
-	header > *:not(:last-child),
-	footer > *:not(:last-child) { margin-right: .5rem; }
-
-	header > h2,
-	header > h3 { flex-grow: 1; }
-
-	/* Don't ask me why this is an improvement on mobile browsers. */
-	input[type=submit], input[type=text], input[type=password],
-	select, textarea { border: 1px inset #ccc; padding: .25rem; }
-	input[type=submit] { border-style: outset; }
-	select { border-style: solid; }
-
-	a { color: inherit; }
-	textarea { padding: .5rem; box-sizing: border-box; width: 100%;
-		font-family: inherit; resize: vertical; }
-	select { max-width: 15rem; }
-	</style>
-</head>
-<body>
-
-<header>
-	<h1>sklad</h1>
-
-{{ block "HeaderControls" . }}
-	<a href=/>Obaly</a>
-	<a href=/series>Řady</a>
-
-	<form method=get action=/search>
-	<input type=text name=q autofocus><input type=submit value="Hledat">
-	</form>
-
-	<form method=post action=/logout>
-	<input type=submit value="Odhlásit">
-	</form>
-{{ end }}
-
-</header>
-
-{{ template "Content" . }}
-</body>
-</html>
diff --git a/sklad/container.tmpl b/sklad/container.tmpl
deleted file mode 100644
index 4bacae8..0000000
--- a/sklad/container.tmpl
+++ /dev/null
@@ -1,99 +0,0 @@
-{{ define "Title" }}{{/*
-*/}}{{ if .Container }}{{ .Container.Id }}{{ else }}Obaly{{ end }}{{ end }}
-{{ define "Content" }}
-
-{{ if .Container }}
-
-<section>
-<header>
-	<h2>{{ .Container.Id }}</h2>
-	<form method=post action="/label?id={{ .Container.Id }}">
-	<input type=submit value="Vytisknout štítek">
-	</form>
-	<form method=post action="/?id={{ .Container.Id }}&amp;remove">
-	<input type=submit value="Odstranit">
-	</form>
-</header>
-
-<form method=post action="/?id={{ .Container.Id }}">
-<textarea name=description rows=5>
-{{ .Container.Description }}
-</textarea>
-<footer>
-	<div>
-		<label for=series>Řada:</label>
-		<select name=series id=series>
-{{ range $prefix, $desc := .AllSeries }}
-			<option value="{{ $prefix }}"
-				{{ if eq $prefix $.Container.Series }}selected{{ end }}
-				>{{ $prefix }} &mdash; {{ $desc }}</option>
-{{ end }}
-		</select>
-	</div>
-	<div>
-		<label for=parent>Nadobal:</label>
-		<input type=text name=parent id=parent value="{{ .Container.Parent }}">
-	</div>
-	<input type=submit value="Uložit">
-</footer>
-</form>
-</section>
-
-<h2>Podobaly</h3>
-
-{{ else }}
-<section>
-<header>
-	<h2>Nový obal</h2>
-</header>
-<form method=post action="/">
-<textarea name=description rows=5
-	placeholder="Popis obalu nebo jeho obsahu"></textarea>
-<footer>
-	<div>
-		<label for=series>Řada:</label>
-		<select name=series id=series>
-{{ range $prefix, $desc := .AllSeries }}
-			<option value="{{ $prefix }}"
-				>{{ $prefix }} &mdash; {{ $desc }}</option>
-{{ end }}
-		</select>
-	</div>
-	<div>
-		<label for=parent>Nadobal:</label>
-		<input type=text name=parent id=parent value="">
-	</div>
-	<input type=submit value="Uložit">
-</footer>
-</form>
-</section>
-
-<h2>Obaly nejvyšší úrovně</h2>
-{{ end }}
-
-{{ range .Children }}
-<section>
-<header>
-	<h3><a href="/?id={{ .Id }}">{{ .Id }}</a></h3>
-	<form method=post action="/label?id={{ .Id }}">
-	<input type=submit value="Vytisknout štítek">
-	</form>
-	<form method=post action="/?id={{ .Id }}&amp;remove">
-	<input type=submit value="Odstranit">
-	</form>
-</header>
-{{ if .Description }}
-<p>{{ .Description }}
-{{ end }}
-{{ if .Children }}
-<p>
-{{ range .Children }}
-<a href="/?id={{ .Id }}">{{ .Id }}</a>
-{{ end }}
-{{ end }}
-</section>
-{{ else }}
-<p>Obal je prázdný.
-{{ end }}
-
-{{ end }}
diff --git a/sklad/db.go b/sklad/db.go
deleted file mode 100644
index def18a5..0000000
--- a/sklad/db.go
+++ /dev/null
@@ -1,225 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-	"time"
-
-	"janouch.name/sklad/bdf"
-)
-
-type Series struct {
-	Prefix      string // PK: prefix
-	Description string // what kind of containers this is for
-}
-
-type ContainerId string
-
-type Container struct {
-	Series      string      // PK: what series does this belong to
-	Number      uint        // PK: order within the series
-	Parent      ContainerId // the container we're in, if any, otherwise ""
-	Description string      // description and/or contents of this container
-}
-
-func (c *Container) Id() ContainerId {
-	return ContainerId(fmt.Sprintf("%s%s%d", db.Prefix, c.Series, c.Number))
-}
-
-func (c *Container) Children() []*Container {
-	// TODO: Sort this by Id, or maybe even return a map[string]*Container,
-	// text/template would sort that automatically.
-	return indexChildren[c.Id()]
-}
-
-func (c *Container) Path() (result []ContainerId) {
-	for c != nil && c.Parent != "" {
-		c = indexContainer[c.Parent]
-		result = append(result, c.Id())
-	}
-	return
-}
-
-type Database struct {
-	Password   string       // password for web users
-	Prefix     string       // prefix for all container IDs
-	Series     []*Series    // all known series
-	Containers []*Container // all known containers
-
-	BDFPath  string // path to bitmap font file
-	BDFScale int    // integer scaling for the bitmap font
-}
-
-var (
-	dbPath string
-	db     Database
-	dbLast Database
-	dbLog  *os.File
-
-	indexSeries    = map[string]*Series{}
-	indexContainer = map[ContainerId]*Container{}
-	indexChildren  = map[ContainerId][]*Container{}
-
-	labelFont *bdf.Font
-)
-
-// TODO: Some functions to add, remove and change things in the database.
-// Indexes must be kept valid, just like any invariants.
-
-func dbSearchSeries(query string) (result []*Series) {
-	query = strings.ToLower(query)
-	added := map[string]bool{}
-	for _, s := range db.Series {
-		if query == strings.ToLower(s.Prefix) {
-			result = append(result, s)
-			added[s.Prefix] = true
-		}
-	}
-	for _, s := range db.Series {
-		if strings.Contains(
-			strings.ToLower(s.Description), query) && !added[s.Prefix] {
-			result = append(result, s)
-		}
-	}
-	return
-}
-
-func dbSearchContainers(query string) (result []*Container) {
-	query = strings.ToLower(query)
-	added := map[ContainerId]bool{}
-	for id, c := range indexContainer {
-		if query == strings.ToLower(string(id)) {
-			result = append(result, c)
-			added[id] = true
-		}
-	}
-	for id, c := range indexContainer {
-		if strings.Contains(
-			strings.ToLower(c.Description), query) && !added[id] {
-			result = append(result, c)
-		}
-	}
-	return
-}
-
-func dbCommit() error {
-	// Write a timestamp.
-	e := json.NewEncoder(dbLog)
-	e.SetIndent("", "  ")
-	if err := e.Encode(time.Now().Format(time.RFC3339)); err != nil {
-		return err
-	}
-
-	// Back up the current database contents.
-	if err := e.Encode(&dbLast); err != nil {
-		return err
-	}
-	if err := dbLog.Sync(); err != nil {
-		return err
-	}
-
-	// Atomically replace the current database file.
-	tempPath := dbPath + ".new"
-	temp, err := os.OpenFile(tempPath, os.O_WRONLY|os.O_CREATE, 0644)
-	if err != nil {
-		return err
-	}
-	defer temp.Close()
-
-	e = json.NewEncoder(temp)
-	e.SetIndent("", "  ")
-	if err := e.Encode(&db); err != nil {
-		return err
-	}
-
-	if err := os.Rename(tempPath, dbPath); err != nil {
-		return err
-	}
-
-	dbLast = db
-	return nil
-}
-
-// loadDatabase loads the database from a simple JSON file. We do not use
-// any SQL stuff or even external KV storage because there is no real need
-// for our trivial use case, with our general amount of data.
-func loadDatabase() error {
-	dbFile, err := os.Open(dbPath)
-	if err != nil {
-		return err
-	}
-	if err := json.NewDecoder(dbFile).Decode(&db); err != nil {
-		return err
-	}
-
-	// Further validate the database.
-	if db.Prefix == "" {
-		return errors.New("misconfigured prefix")
-	}
-
-	// Construct indexes for primary keys, validate against duplicates.
-	for _, pv := range db.Series {
-		if _, ok := indexSeries[pv.Prefix]; ok {
-			return fmt.Errorf("duplicate series: %s", pv.Prefix)
-		}
-		indexSeries[pv.Prefix] = pv
-	}
-	for _, pv := range db.Containers {
-		id := pv.Id()
-		if _, ok := indexContainer[id]; ok {
-			return fmt.Errorf("duplicate container: %s", id)
-		}
-		indexContainer[id] = pv
-	}
-
-	// Construct an index that goes from parent containers to their children.
-	for _, pv := range db.Containers {
-		if pv.Parent != "" {
-			if _, ok := indexContainer[pv.Parent]; !ok {
-				return fmt.Errorf("container %s has a nonexistent parent %s",
-					pv.Id(), pv.Parent)
-			}
-		}
-		indexChildren[pv.Parent] = append(indexChildren[pv.Parent], pv)
-	}
-
-	// Validate that no container is a parent of itself on any level.
-	// This could probably be optimized but it would stop being obvious.
-	for _, pv := range db.Containers {
-		parents := map[ContainerId]bool{pv.Id(): true}
-		for pv.Parent != "" {
-			if parents[pv.Parent] {
-				return fmt.Errorf("%s contains itself", pv.Parent)
-			}
-			parents[pv.Parent] = true
-			pv = indexContainer[pv.Parent]
-		}
-	}
-
-	// Prepare label printing.
-	if db.BDFScale <= 0 {
-		db.BDFScale = 1
-	}
-
-	if f, err := os.Open(db.BDFPath); err != nil {
-		return fmt.Errorf("cannot load label font: %s", err)
-	} else {
-		defer f.Close()
-		if labelFont, err = bdf.NewFromBDF(f); err != nil {
-			return fmt.Errorf("cannot load label font: %s", err)
-		}
-	}
-
-	// Open database log file for appending.
-	if dbLog, err = os.OpenFile(dbPath+".log",
-		os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644); err != nil {
-		return err
-	}
-
-	// Remember the current state of the database.
-	dbLast = db
-	return nil
-}
diff --git a/sklad/label.tmpl b/sklad/label.tmpl
deleted file mode 100644
index da17c58..0000000
--- a/sklad/label.tmpl
+++ /dev/null
@@ -1,13 +0,0 @@
-{{ define "Title" }}Tisk štítku{{ end }}
-{{ define "Content" }}
-<h2>Tisk štítku pro {{ .Id }}</h2>
-
-{{ if .UnknownId }}
-<p>Neznámý obal.
-{{ else if .Error }}
-<p>Tisk selhal: {{ .Error }}
-{{ else }}
-<p>Tisk proběhl úspěšně.
-{{ end }}
-
-{{ end }}
diff --git a/sklad/login.tmpl b/sklad/login.tmpl
deleted file mode 100644
index c34ab53..0000000
--- a/sklad/login.tmpl
+++ /dev/null
@@ -1,17 +0,0 @@
-{{ define "Title" }}Přihlášení{{ end }}
-{{ define "HeaderControls" }}<!-- text/template requires content -->{{ end }}
-{{ define "Content" }}
-
-<h2>Přihlášení</h2>
-
-<form method=post>
-<label for=password>Heslo:</label>
-<input type=password name=password id=password autofocus
-><input type=submit value="Přihlásit">
-</form>
-
-{{ if .IncorrectPassword }}
-<p>Bylo zadáno nesprávné heslo.
-{{ end }}
-
-{{ end }}
diff --git a/sklad/main.go b/sklad/main.go
deleted file mode 100644
index 32dd68b..0000000
--- a/sklad/main.go
+++ /dev/null
@@ -1,271 +0,0 @@
-package main
-
-import (
-	"errors"
-	"html/template"
-	"io"
-	"log"
-	"math/rand"
-	"net/http"
-	"os"
-	"path/filepath"
-	"time"
-
-	"janouch.name/sklad/imgutil"
-	"janouch.name/sklad/label"
-	"janouch.name/sklad/ql"
-)
-
-var templates = map[string]*template.Template{}
-
-func executeTemplate(name string, w io.Writer, data interface{}) {
-	if err := templates[name].Execute(w, data); err != nil {
-		panic(err)
-	}
-}
-
-func wrap(inner func(http.ResponseWriter, *http.Request)) func(
-	http.ResponseWriter, *http.Request) {
-	return func(w http.ResponseWriter, r *http.Request) {
-		if err := r.ParseForm(); err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-		if r.Method == http.MethodGet {
-			w.Header().Set("Cache-Control", "no-store")
-		}
-		inner(w, r)
-	}
-}
-
-func handleLogin(w http.ResponseWriter, r *http.Request) {
-	redirect := r.FormValue("redirect")
-	if redirect == "" {
-		redirect = "/"
-	}
-
-	session := sessionGet(w, r)
-	if session.LoggedIn {
-		http.Redirect(w, r, redirect, http.StatusSeeOther)
-		return
-	}
-
-	params := struct {
-		IncorrectPassword bool
-	}{}
-
-	switch r.Method {
-	case http.MethodGet:
-		// We're just going to render the template.
-	case http.MethodPost:
-		if r.FormValue("password") == db.Password {
-			session.LoggedIn = true
-			http.Redirect(w, r, redirect, http.StatusSeeOther)
-			return
-		}
-		params.IncorrectPassword = true
-	default:
-		w.WriteHeader(http.StatusMethodNotAllowed)
-		return
-	}
-
-	executeTemplate("login.tmpl", w, &params)
-}
-
-func handleLogout(w http.ResponseWriter, r *http.Request) {
-	if r.Method != http.MethodPost {
-		w.WriteHeader(http.StatusMethodNotAllowed)
-		return
-	}
-
-	session := r.Context().Value(sessionContextKey{}).(*Session)
-	session.LoggedIn = false
-	http.Redirect(w, r, "/", http.StatusSeeOther)
-}
-
-func handleContainer(w http.ResponseWriter, r *http.Request) {
-	if r.Method == http.MethodPost {
-		// TODO
-	}
-	if r.Method != http.MethodGet {
-		w.WriteHeader(http.StatusMethodNotAllowed)
-		return
-	}
-
-	allSeries := map[string]string{}
-	for _, s := range indexSeries {
-		allSeries[s.Prefix] = s.Description
-	}
-
-	var container *Container
-	children := []*Container{}
-
-	if id := ContainerId(r.FormValue("id")); id == "" {
-		children = indexChildren[""]
-	} else if c, ok := indexContainer[id]; ok {
-		children = c.Children()
-		container = c
-	}
-
-	params := struct {
-		Container *Container
-		Children  []*Container
-		AllSeries map[string]string
-	}{
-		Container: container,
-		Children:  children,
-		AllSeries: allSeries,
-	}
-
-	executeTemplate("container.tmpl", w, &params)
-}
-
-func handleSeries(w http.ResponseWriter, r *http.Request) {
-	if r.Method == http.MethodPost {
-		// TODO
-	}
-	if r.Method != http.MethodGet {
-		w.WriteHeader(http.StatusMethodNotAllowed)
-		return
-	}
-
-	allSeries := map[string]string{}
-	for _, s := range indexSeries {
-		allSeries[s.Prefix] = s.Description
-	}
-
-	prefix := r.FormValue("prefix")
-	description := ""
-
-	if prefix == "" {
-	} else if series, ok := indexSeries[prefix]; ok {
-		description = series.Description
-	}
-
-	params := struct {
-		Prefix      string
-		Description string
-		AllSeries   map[string]string
-	}{
-		Prefix:      prefix,
-		Description: description,
-		AllSeries:   allSeries,
-	}
-
-	executeTemplate("series.tmpl", w, &params)
-}
-
-func handleSearch(w http.ResponseWriter, r *http.Request) {
-	if r.Method != http.MethodGet {
-		w.WriteHeader(http.StatusMethodNotAllowed)
-		return
-	}
-
-	query := r.FormValue("q")
-	params := struct {
-		Query      string
-		Series     []*Series
-		Containers []*Container
-	}{
-		Query:      query,
-		Series:     dbSearchSeries(query),
-		Containers: dbSearchContainers(query),
-	}
-
-	executeTemplate("search.tmpl", w, &params)
-}
-
-func printLabel(id string) error {
-	printer, err := ql.Open()
-	if err != nil {
-		return err
-	}
-	if printer == nil {
-		return errors.New("no suitable printer found")
-	}
-	defer printer.Close()
-
-	/*
-		printer.StatusNotify = func(status *ql.Status) {
-			log.Printf("\x1b[1mreceived status\x1b[m\n%+v\n%s",
-				status[:], status)
-		}
-	*/
-
-	if err := printer.Initialize(); err != nil {
-		return err
-	}
-	if err := printer.UpdateStatus(); err != nil {
-		return err
-	}
-
-	mediaInfo := ql.GetMediaInfo(
-		printer.LastStatus.MediaWidthMM(),
-		printer.LastStatus.MediaLengthMM(),
-	)
-	if mediaInfo == nil {
-		return errors.New("unknown media")
-	}
-
-	return printer.Print(&imgutil.LeftRotate{Image: label.GenLabelForHeight(
-		labelFont, id, mediaInfo.PrintAreaPins, db.BDFScale)})
-}
-
-func handleLabel(w http.ResponseWriter, r *http.Request) {
-	if r.Method != http.MethodPost {
-		w.WriteHeader(http.StatusMethodNotAllowed)
-		return
-	}
-
-	params := struct {
-		Id        string
-		UnknownId bool
-		Error     error
-	}{
-		Id: r.FormValue("id"),
-	}
-
-	if c := indexContainer[ContainerId(params.Id)]; c == nil {
-		params.UnknownId = true
-	} else {
-		params.Error = printLabel(params.Id)
-	}
-
-	executeTemplate("label.tmpl", w, &params)
-}
-
-func main() {
-	// Randomize the RNG for session string generation.
-	rand.Seed(time.Now().UnixNano())
-
-	if len(os.Args) != 3 {
-		log.Fatalf("Usage: %s ADDRESS DATABASE-FILE\n", os.Args[0])
-	}
-
-	var address string
-	address, dbPath = os.Args[1], os.Args[2]
-
-	// Load database.
-	if err := loadDatabase(); err != nil {
-		log.Fatalln(err)
-	}
-
-	// Load HTML templates from the current working directory.
-	m, err := filepath.Glob("*.tmpl")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	for _, name := range m {
-		templates[name] = template.Must(template.ParseFiles("base.tmpl", name))
-	}
-
-	http.HandleFunc("/login", wrap(handleLogin))
-	http.HandleFunc("/logout", sessionWrap(wrap(handleLogout)))
-
-	http.HandleFunc("/", sessionWrap(wrap(handleContainer)))
-	http.HandleFunc("/series", sessionWrap(wrap(handleSeries)))
-	http.HandleFunc("/search", sessionWrap(wrap(handleSearch)))
-	http.HandleFunc("/label", sessionWrap(wrap(handleLabel)))
-
-	log.Fatalln(http.ListenAndServe(address, nil))
-}
diff --git a/sklad/search.tmpl b/sklad/search.tmpl
deleted file mode 100644
index cf704cf..0000000
--- a/sklad/search.tmpl
+++ /dev/null
@@ -1,38 +0,0 @@
-{{ define "Title" }}&bdquo;{{ .Query }}&ldquo; &mdash; Vyhledávání{{ end }}
-{{ define "Content" }}
-
-<h2>Vyhledávání: &bdquo;{{ .Query }}&ldquo;<h2>
-
-<h3>Řady</h3>
-
-{{ range .Series }}
-<section>
-<header>
-	<h3><a href="/series?prefix={{ .Prefix }}">{{ .Prefix }}</a></h3>
-	<p>{{ .Description }}
-</header>
-</section>
-{{ else }}
-<p>Neodpovídají žádné řady.
-{{ end }}
-
-<h3>Obaly</h3>
-
-{{ range .Containers }}
-<section>
-<header>
-	<h3><a href="/?id={{ .Id }}">{{ .Id }}</a>
-{{ range .Path }}
-	<small>&laquo; <a href="/?id={{ . }}">{{ . }}</a></small>
-{{ end }}
-	</h3>
-</header>
-{{ if .Description }}
-<p>{{ .Description }}
-{{ end }}
-</section>
-{{ else }}
-<p>Neodpovídají žádné obaly.
-{{ end }}
-
-{{ end }}
diff --git a/sklad/series.tmpl b/sklad/series.tmpl
deleted file mode 100644
index 4956e3a..0000000
--- a/sklad/series.tmpl
+++ /dev/null
@@ -1,43 +0,0 @@
-{{ define "Title" }}{{ or .Prefix "Řady" }}{{ end }}
-{{ define "Content" }}
-
-{{ if .Prefix }}
-<h2>{{ .Prefix }}</h2>
-
-{{ if .Description }}
-<p>{{ .Description }}
-{{ end }}
-{{ else }}
-
-<section>
-<form method=post action="/series">
-<header>
-	<h3>Nová řada</h3>
-	<input type=text name=prefix placeholder="Prefix řady">
-	<input type=text name=description placeholder="Popis řady"
-	><input type=submit value="Uložit">
-	</form>
-</header>
-</form>
-</section>
-
-{{ range $prefix, $desc := .AllSeries }}
-<section>
-<header>
-	<h3><a href="/series?prefix={{ $prefix }}">{{ $prefix }}</a></h3>
-	<form method=post action="/series?prefix={{ $prefix }}">
-	<input type=text name=description value="{{ $desc }}"
-	><input type=submit value="Uložit">
-	</form>
-	<form method=post action="/series?prefix={{ $prefix }}&amp;remove">
-	<input type=submit value="Odstranit">
-	</form>
-</header>
-</section>
-{{ else }}
-<p>Nejsou žádné řady.
-{{ end }}
-
-{{ end }}
-
-{{ end }}
diff --git a/sklad/session.go b/sklad/session.go
deleted file mode 100644
index 02fe0b0..0000000
--- a/sklad/session.go
+++ /dev/null
@@ -1,66 +0,0 @@
-package main
-
-import (
-	"context"
-	"encoding/hex"
-	"math/rand"
-	"net/http"
-	"net/url"
-)
-
-// session storage indexed by a random UUID
-var sessions = map[string]*Session{}
-
-type Session struct {
-	LoggedIn bool // may access the DB
-}
-
-type sessionContextKey struct{}
-
-func sessionGenId() string {
-	u := make([]byte, 16)
-	if _, err := rand.Read(u); err != nil {
-		panic("cannot generate random bytes")
-	}
-	return hex.EncodeToString(u)
-}
-
-// TODO: We don't want to keep an unlimited amount of cookies in the storage.
-//  - The essential question is: how do we avoid DoS?
-//  - Which cookies are worth keeping?
-//     - Definitely logged-in users, only one person should know the password.
-//  - Evict by FIFO? LRU?
-func sessionGet(w http.ResponseWriter, r *http.Request) (session *Session) {
-	if c, _ := r.Cookie("sessionid"); c != nil {
-		session, _ = sessions[c.Value]
-	}
-	if session == nil {
-		id := sessionGenId()
-		session = &Session{LoggedIn: false}
-		sessions[id] = session
-		http.SetCookie(w, &http.Cookie{Name: "sessionid", Value: id})
-	}
-	return
-}
-
-func sessionWrap(inner func(http.ResponseWriter, *http.Request)) func(
-	http.ResponseWriter, *http.Request) {
-	return func(w http.ResponseWriter, r *http.Request) {
-		// We might also try no-cache with an ETag for the whole database,
-		// though I don't expect any substantial improvements of anything.
-		w.Header().Set("Cache-Control", "no-store")
-
-		redirect := "/login"
-		if r.RequestURI != "/" && r.Method == http.MethodGet {
-			redirect += "?redirect=" + url.QueryEscape(r.RequestURI)
-		}
-
-		session := sessionGet(w, r)
-		if !session.LoggedIn {
-			http.Redirect(w, r, redirect, http.StatusSeeOther)
-			return
-		}
-		inner(w, r.WithContext(
-			context.WithValue(r.Context(), sessionContextKey{}, session)))
-	}
-}
author	Přemysl Janouch <p@janouch.name>	2019-04-14 22:30:40 +0200
committer	Přemysl Janouch <p@janouch.name>	2019-04-14 22:30:40 +0200
commit	1331f3b5642f521236fcb1ec21ee43d5b76c0b91 (patch)
tree	1213c2f2014cf0eff5a4a881b02cbebf91a604b8 /sklad
parent	7d9410c6b3a724e3670941f7ec2d00e7966d0b1a (diff)
download	sklad-1331f3b5642f521236fcb1ec21ee43d5b76c0b91.tar.gz sklad-1331f3b5642f521236fcb1ec21ee43d5b76c0b91.tar.xz sklad-1331f3b5642f521236fcb1ec21ee43d5b76c0b91.zip