Refactor server routes

.gitignore

@@ -27,3 +27,4 @@ hibiscus-txt
 data/
 config/log.txt
 config/dev-config.txt
+config/style.css

CHANGELOG.md

@@ -2,10 +2,15 @@
 This file keeps track of changes in a human-readable fashion
 
 ## Upcoming
-These changes were not yet released
 
+These changes are not yet released
+
+* Fully refactored the project internally
+* Log *directory* is now specified as opposed to *file*.
+Files in that directory are generated as `hibiscus_YYYY-MM-DD_HH:MM:SS.log`
 * Adjusted default theme
 * Error pages are now translated
+* API: `/api/today` POST now behaves like other file uploads
 
 ## v1.1.4
 

README.md

@@ -3,7 +3,7 @@
 Simple plaintext diary.
 
 This project is *very* opinionated and minimal, and is designed primarily for my usage. 
-As a result, I can't guarantee that it's either secure or stable.
+As a result, neither security nor stability are guaranteed.
 
 ## Features:
 

TODO.md

@@ -1,9 +1,12 @@
 # TODO
 List of things to add to this project
 
-## Urgent (1.1.5-2.0.0)
+## Priority 2.0.0
+* (pre-release) re-write README
 * `style.css` in config instead of theme (provide themes as examples in repo)
 * Auth improvement so it DOESN'T ASK ME FOR PASSWORD EVERY DAY UGH XD
+* Specify data directory in config or with flags
+* Configure more of the app with flags, possibly move to `cobra` for this
 
 ## Nice to have
 * Forward/backward buttons for days

api.go

@@ -1,108 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"errors"
-	"github.com/go-chi/chi/v5"
-	"io"
-	"log/slog"
-	"net/http"
-	"os"
-)
-
-// HandleWrite handles error in output of ResponseWriter.Write.
-func HandleWrite(_ int, err error) {
-	if err != nil {
-		slog.Error("error writing response", "error", err)
-	}
-}
-
-// GetFileApi returns raw contents of a file.
-func GetFileApi(filename string, w http.ResponseWriter) {
-	fileContents, err := ReadFile(filename)
-	if err != nil {
-		if errors.Is(err, os.ErrNotExist) {
-			http.Error(w, "file not found", http.StatusNotFound)
-		} else {
-			http.Error(w, "error reading found", http.StatusNotFound)
-		}
-		return
-	}
-	HandleWrite(w.Write(fileContents))
-}
-
-// PostFileApi writes contents of Request.Body to a file.
-func PostFileApi(filename string, w http.ResponseWriter, r *http.Request) {
-	body, err := io.ReadAll(r.Body)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		HandleWrite(w.Write([]byte("error reading body")))
-		return
-	}
-	err = SaveFile(filename, body)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		HandleWrite(w.Write([]byte("error saving file")))
-		return
-	}
-	HandleWrite(w.Write([]byte("wrote to file")))
-	w.WriteHeader(http.StatusOK)
-}
-
-// GetFileList returns JSON list of filenames in a directory without extensions or path.
-func GetFileList(directory string, w http.ResponseWriter) {
-	filenames, err := ListFiles(directory)
-	if err != nil {
-		http.Error(w, "error searching for files", http.StatusInternalServerError)
-		return
-	}
-	filenamesJson, err := json.Marshal(filenames)
-	if err != nil {
-		http.Error(w, "error marshaling json", http.StatusInternalServerError)
-		return
-	}
-	HandleWrite(w.Write(filenamesJson))
-}
-
-// GetDayApi returns raw contents of a daily file specified in URL.
-func GetDayApi(w http.ResponseWriter, r *http.Request) {
-	dayString := chi.URLParam(r, "day")
-	if dayString == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		HandleWrite(w.Write([]byte("day not specified")))
-		return
-	}
-	GetFileApi(DataFile("day/"+dayString), w)
-}
-
-// GetNoteApi returns contents of a note specified in URL.
-func GetNoteApi(w http.ResponseWriter, r *http.Request) {
-	noteString := chi.URLParam(r, "note")
-	if noteString == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		HandleWrite(w.Write([]byte("note not specified")))
-		return
-	}
-	GetFileApi(DataFile("notes/"+noteString), w)
-}
-
-// PostNoteApi writes contents of Request.Body to a note specified in URL.
-func PostNoteApi(w http.ResponseWriter, r *http.Request) {
-	noteString := chi.URLParam(r, "note")
-	if noteString == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		HandleWrite(w.Write([]byte("note not specified")))
-		return
-	}
-	PostFileApi(DataFile("notes/"+noteString), w, r)
-}
-
-// GraceActiveApi returns "true" if grace period is active, and "false" otherwise.
-func GraceActiveApi(w http.ResponseWriter, r *http.Request) {
-	value := "false"
-	if GraceActive() {
-		value = "true"
-	}
-	HandleWrite(w.Write([]byte(value)))
-	w.WriteHeader(http.StatusOK)
-}

auth.go

@@ -1,105 +0,0 @@
-package main
-
-import (
-	"crypto/sha256"
-	"crypto/subtle"
-	"fmt"
-	"log/slog"
-	"net/http"
-	"os"
-	"strings"
-	"time"
-)
-
-type failedLogin struct {
-	Username  string
-	Password  string
-	Timestamp time.Time
-}
-
-var failedLogins []failedLogin
-
-// NoteLoginFail attempts to log and counteract bruteforce attacks.
-func NoteLoginFail(username string, password string, r *http.Request) {
-	slog.Warn("failed auth", "username", username, "password", password, "address", r.RemoteAddr)
-	NotifyTelegram(fmt.Sprintf(TranslatableText("info.telegram.auth_fail")+":\nusername=%s\npassword=%s\nremote=%s", username, password, r.RemoteAddr))
-
-	attempt := failedLogin{username, password, time.Now()}
-	updatedLogins := []failedLogin{attempt}
-	for _, attempt := range failedLogins {
-		if 100 > time.Since(attempt.Timestamp).Seconds() {
-			updatedLogins = append(updatedLogins, attempt)
-		}
-	}
-	failedLogins = updatedLogins
-
-	// At least 3 failed attempts in last 100 seconds -> likely bruteforce
-	if len(failedLogins) >= 3 && Cfg.Scram {
-		Scram()
-	}
-}
-
-// BasicAuth is a middleware that handles authentication & authorization for the app.
-// It uses BasicAuth because I doubt there is a need for something sophisticated in a small hobby project.
-// Originally taken from Alex Edwards's https://www.alexedwards.net/blog/basic-authentication-in-go, MIT Licensed (13.03.2024).
-func BasicAuth(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		username, password, ok := r.BasicAuth()
-		if ok {
-			// Calculate SHA-256 hashes for equal length in ConstantTimeCompare
-			usernameHash := sha256.Sum256([]byte(username))
-			passwordHash := sha256.Sum256([]byte(password))
-			expectedUsernameHash := sha256.Sum256([]byte(Cfg.Username))
-			expectedPasswordHash := sha256.Sum256([]byte(Cfg.Password))
-
-			usernameMatch := subtle.ConstantTimeCompare(usernameHash[:], expectedUsernameHash[:]) == 1
-			passwordMatch := subtle.ConstantTimeCompare(passwordHash[:], expectedPasswordHash[:]) == 1
-
-			if usernameMatch && passwordMatch {
-				next.ServeHTTP(w, r)
-				return
-			} else {
-				NoteLoginFail(username, password, r)
-			}
-		}
-
-		// Unauthorized, inform client that we have auth and return 401
-		w.Header().Set("WWW-Authenticate", `Basic realm="restricted", charset="UTF-8"`)
-		http.Error(w, "Unauthorized", http.StatusUnauthorized)
-	})
-}
-
-// Scram shuts down the service, useful in case of suspected attack.
-func Scram() {
-	slog.Warn("SCRAM triggered, shutting down")
-	NotifyTelegram(TranslatableText("info.telegram.scram"))
-	os.Exit(0)
-}
-
-// NotifyTelegram attempts to send a message to admin through Telegram.
-func NotifyTelegram(msg string) {
-	if Cfg.TelegramChat == "" || Cfg.TelegramToken == "" {
-		slog.Debug("ignoring telegram request due to lack of credentials")
-		return
-	}
-	client := &http.Client{}
-	data := "chat_id=" + Cfg.TelegramChat + "&text=" + msg
-	if Cfg.TelegramTopic != "" {
-		data += "&message_thread_id=" + Cfg.TelegramTopic
-	}
-	req, err := http.NewRequest("POST", "https://api.telegram.org/bot"+Cfg.TelegramToken+"/sendMessage", strings.NewReader(data))
-	if err != nil {
-		slog.Error("failed telegram request", "error", err)
-		return
-	}
-	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	resp, err := client.Do(req)
-	if err != nil {
-		slog.Error("failed telegram request", "error", err)
-		return
-	}
-
-	if resp.StatusCode != 200 {
-		slog.Error("failed telegram request", "status", resp.Status)
-	}
-}

go.mod

@@ -1,5 +1,5 @@
-module hibiscus-txt
+module git.a71.su/Andrew71/hibiscus-txt
 
 go 1.22
 
-require github.com/go-chi/chi/v5 v5.0.12
+require github.com/go-chi/chi/v5 v5.1.0

go.sum

@@ -1,2 +1,4 @@
 github.com/go-chi/chi/v5 v5.0.12 h1:9euLV5sTrTNTRUU9POmDUvfxyj6LAABLUcEWO+JJb4s=
 github.com/go-chi/chi/v5 v5.0.12/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/go-chi/chi/v5 v5.1.0 h1:acVI1TYaD+hhedDJ3r54HyA6sExp3HfXq7QWEEY/xMw=
+github.com/go-chi/chi/v5 v5.1.0/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=

info.go

@@ -1,36 +0,0 @@
-package main
-
-import (
-	"html/template"
-	"log/slog"
-	"net/http"
-)
-
-var infoTemplate = template.Must(template.New("").Funcs(templateFuncs).ParseFS(Pages, "pages/base.html", "pages/info.html"))
-
-type AppInfo struct {
-	Version    string
-	SourceLink string
-}
-
-// Info contains app information.
-var Info = AppInfo{
-	Version:    "1.1.4",
-	SourceLink: "https://git.a71.su/Andrew71/hibiscus",
-}
-
-// GetInfo renders the info page.
-func GetInfo(w http.ResponseWriter, r *http.Request) {
-	err := infoTemplate.ExecuteTemplate(w, "base", Info)
-	if err != nil {
-		slog.Error("error executing template", "error", err)
-		InternalError(w, r)
-		return
-	}
-}
-
-// GetVersionApi returns current app version.
-func GetVersionApi(w http.ResponseWriter, r *http.Request) {
-	HandleWrite(w.Write([]byte(Info.Version)))
-	w.WriteHeader(http.StatusOK)
-}

internal/app/flags.go

@@ -1,34 +1,37 @@
-package main
+package app
 
 import (
 	"flag"
 	"log"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/logging"
 )
 
 // FlagInit processes app flags.
 func FlagInit() {
-	config := flag.String("config", "", "override config file")
+	conf := flag.String("config", "", "override config file")
 	username := flag.String("user", "", "override username")
 	password := flag.String("pass", "", "override password")
 	port := flag.Int("port", 0, "override port")
 	debug := flag.Bool("debug", false, "debug logging")
 
 	flag.Parse()
-	if *config != "" {
-		ConfigFile = *config
-		err := Cfg.Reload()
+	if *conf != "" {
+		config.ConfigFile = *conf
+		err := config.Cfg.Reload()
 		if err != nil {
 			log.Fatal(err)
 		}
 	}
 	if *username != "" {
-		Cfg.Username = *username
+		config.Cfg.Username = *username
 	}
 	if *password != "" {
-		Cfg.Password = *password
+		config.Cfg.Password = *password
 	}
 	if *port != 0 {
-		Cfg.Port = *port
+		config.Cfg.Port = *port
 	}
-	DebugMode = *debug
+	logging.DebugMode = *debug
 }

internal/app/main.go

@@ -0,0 +1,12 @@
+package app
+
+import (
+	"git.a71.su/Andrew71/hibiscus-txt/internal/logging"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server"
+)
+
+func Execute() {
+	FlagInit()
+	logging.LogInit()
+	server.Serve()
+}

internal/config/info.go

@@ -0,0 +1,22 @@
+package config
+
+type AppInfo struct {
+	version    string
+	source string
+}
+
+// Info contains app information.
+var Info = AppInfo{
+	version:    "2.0.0",
+	source: "https://git.a71.su/Andrew71/hibiscus",
+}
+
+// Version returns the current app version
+func (i AppInfo) Version() string {
+	return i.version
+}
+
+// Source returns app's git repository
+func (i AppInfo) Source() string {
+	return i.source
+}

internal/config/main.go

@@ -1,4 +1,4 @@
-package main
+package config
 
 import (
 	"bufio"
@@ -6,14 +6,17 @@ import (
 	"fmt"
 	"log"
 	"log/slog"
-	"net/http"
 	"os"
 	"reflect"
 	"strconv"
 	"strings"
 	"time"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/lang"
 )
 
+var Cfg = ConfigInit()
 var ConfigFile = "config/config.txt"
 
 type Config struct {
@@ -26,7 +29,7 @@ type Config struct {
 	Theme     string         `config:"theme" type:"string"`
 	Title     string         `config:"title" type:"string"`
 	LogToFile bool           `config:"log_to_file" type:"bool"`
-	LogFile   string         `config:"log_file" type:"string"`
+	LogDir   string         `config:"log_dir" type:"string"`
 	Scram     bool           `config:"enable_scram" type:"bool"`
 
 	TelegramToken string `config:"tg_token" type:"string"`
@@ -34,7 +37,7 @@ type Config struct {
 	TelegramTopic string `config:"tg_topic" type:"string"`
 }
 
-var DefaultConfig = Config{
+var defaultConfig = Config{
 	Username:  "admin",
 	Password:  "admin",
 	Port:      7101,
@@ -44,7 +47,7 @@ var DefaultConfig = Config{
 	Theme:     "",
 	Title:     "🌺 Hibiscus.txt",
 	LogToFile: false,
-	LogFile:   "config/log.txt",
+	LogDir:   "logs",
 	Scram:     false,
 
 	TelegramToken: "",
@@ -56,7 +59,7 @@ var DefaultConfig = Config{
 func (c *Config) String() string {
 	output := ""
 	v := reflect.ValueOf(*c)
-	vDefault := reflect.ValueOf(DefaultConfig)
+	vDefault := reflect.ValueOf(defaultConfig)
 	typeOfS := v.Type()
 	for i := 0; i < v.NumField(); i++ {
 		key := typeOfS.Field(i).Tag.Get("config")
@@ -72,7 +75,7 @@ func (c *Config) String() string {
 // Reload resets, then loads config from the ConfigFile.
 // It creates the file with mandatory options if it is missing.
 func (c *Config) Reload() error {
-	*c = DefaultConfig // Reset config
+	*c = defaultConfig // Reset config
 
 	if _, err := os.Stat(ConfigFile); errors.Is(err, os.ErrNotExist) {
 		err := c.Save()
@@ -143,40 +146,17 @@ func (c *Config) Reload() error {
 	}
 	slog.Debug("reloaded config", "config", c)
 
-	return SetLanguage(c.Language) // Load selected language
+	return lang.SetLanguage(c.Language) // Load selected language
 }
 
 // Read gets raw contents from ConfigFile.
 func (c *Config) Read() ([]byte, error) {
-	return ReadFile(ConfigFile)
+	return files.Read(ConfigFile)
 }
 
 // Save writes config's contents to the ConfigFile.
 func (c *Config) Save() error {
-	return SaveFile(ConfigFile, []byte(c.String()))
-}
-
-// PostConfig calls PostEntry for config file, then reloads the config.
-func PostConfig(w http.ResponseWriter, r *http.Request) {
-	PostEntry(ConfigFile, w, r)
-	err := Cfg.Reload()
-	if err != nil {
-		slog.Error("error reloading config", "error", err)
-	}
-}
-
-// ConfigReloadApi reloads the config. It then redirects back if Referer field is present.
-func ConfigReloadApi(w http.ResponseWriter, r *http.Request) {
-	err := Cfg.Reload()
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		HandleWrite(w.Write([]byte(err.Error())))
-	}
-	if r.Referer() != "" {
-		http.Redirect(w, r, r.Header.Get("Referer"), http.StatusFound)
-		return
-	}
-	w.WriteHeader(http.StatusOK)
+	return files.Save(ConfigFile, []byte(c.String()))
 }
 
 // ConfigInit loads config on startup.

internal/config/time.go

@@ -0,0 +1,31 @@
+package config
+
+import (
+	"log/slog"
+	"time"
+)
+
+// FIXME: This probably shouldn't be part of config package
+
+// Grace returns whether the grace period is active.
+// NOTE: Grace period has minute precision
+func (c Config) Grace() bool {
+	t := time.Now().In(c.Timezone)
+	active := (60*t.Hour() + t.Minute()) < int(c.GraceTime.Minutes())
+	if active {
+		slog.Debug("grace period active",
+			"time", 60*t.Hour()+t.Minute(),
+			"grace", c.GraceTime.Minutes())
+	}
+	return active
+}
+
+// TodayDate returns today's formatted date. It accounts for Config.GraceTime.
+func (c Config) TodayDate() string {
+	dateFormatted := time.Now().In(c.Timezone).Format(time.DateOnly)
+	if c.Grace() {
+		dateFormatted = time.Now().In(c.Timezone).AddDate(0, 0, -1).Format(time.DateOnly)
+	}
+	slog.Debug("today", "time", time.Now().In(c.Timezone).Format(time.DateTime))
+	return dateFormatted
+}

internal/files/export.go

@@ -1,4 +1,4 @@
-package main
+package files
 
 import (
 	"archive/zip"
@@ -9,7 +9,7 @@ import (
 	"path/filepath"
 )
 
-var ExportPath = "data/export.zip"
+var ExportPath = "data/export.zip"  // TODO: Move to config
 
 // Export saves a .zip archive of the data folder to a file.
 func Export(filename string) error {

internal/files/files.go

@@ -1,4 +1,4 @@
-package main
+package files
 
 import (
 	"bytes"
@@ -8,7 +8,6 @@ import (
 	"path"
 	"path/filepath"
 	"strings"
-	"time"
 )
 
 // DataFile modifies file path to ensure it's a .txt inside the data folder.
@@ -16,8 +15,8 @@ func DataFile(filename string) string {
 	return "data/" + path.Clean(filename) + ".txt"
 }
 
-// ReadFile returns contents of a file.
-func ReadFile(filename string) ([]byte, error) {
+// Read returns contents of a file.
+func Read(filename string) ([]byte, error) {
 	if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {
 		return nil, err
 	}
@@ -29,8 +28,8 @@ func ReadFile(filename string) ([]byte, error) {
 	return fileContents, nil
 }
 
-// SaveFile Writes contents to a file.
-func SaveFile(filename string, contents []byte) error {
+// Save Writes contents to a file.
+func Save(filename string, contents []byte) error {
 	contents = bytes.TrimSpace(contents)
 	if len(contents) == 0 { // Delete empty files
 		err := os.Remove(filename)
@@ -54,9 +53,9 @@ func SaveFile(filename string, contents []byte) error {
 	return nil
 }
 
-// ListFiles returns slice of filenames in a directory without extensions or path.
+// List returns slice of filenames in a directory without extensions or path.
 // NOTE: What if I ever want to list non-text files or those outside data directory?
-func ListFiles(directory string) ([]string, error) {
+func List(directory string) ([]string, error) {
 	filenames, err := filepath.Glob("data/" + path.Clean(directory) + "/*.txt")
 	if err != nil {
 		return nil, err
@@ -67,25 +66,3 @@ func ListFiles(directory string) ([]string, error) {
 	}
 	return filenames, nil
 }
-
-// GraceActive returns whether the grace period (Cfg.GraceTime) is active. Grace period has minute precision
-func GraceActive() bool {
-	t := time.Now().In(Cfg.Timezone)
-	active := (60*t.Hour() + t.Minute()) < int(Cfg.GraceTime.Minutes())
-	if active {
-		slog.Debug("grace period active",
-			"time", 60*t.Hour()+t.Minute(),
-			"grace", Cfg.GraceTime.Minutes())
-	}
-	return active
-}
-
-// TodayDate returns today's formatted date. It accounts for Config.GraceTime.
-func TodayDate() string {
-	dateFormatted := time.Now().In(Cfg.Timezone).Format(time.DateOnly)
-	if GraceActive() {
-		dateFormatted = time.Now().In(Cfg.Timezone).AddDate(0, 0, -1).Format(time.DateOnly)
-	}
-	slog.Debug("today", "time", time.Now().In(Cfg.Timezone).Format(time.DateTime))
-	return dateFormatted
-}

internal/lang/main.go

@@ -1,4 +1,4 @@
-package main
+package lang
 
 import (
 	"embed"
@@ -6,24 +6,24 @@ import (
 	"log/slog"
 )
 
-//go:embed i18n
-var I18n embed.FS
-var Translations = map[string]string{}
+//go:embed lang
+var lang embed.FS
+var translations = map[string]string{}
 
 // SetLanguage loads a json file for selected language into the Translations map, with English language as a fallback.
 func SetLanguage(language string) error {
 	loadLanguage := func(language string) error {
-		filename := "i18n/" + language + ".json"
-		fileContents, err := I18n.ReadFile(filename)
+		filename := "lang/" + language + ".json"
+		fileContents, err := lang.ReadFile(filename)
 		if err != nil {
 			slog.Error("error reading language file",
 				"error", err,
 				"file", filename)
 			return err
 		}
-		return json.Unmarshal(fileContents, &Translations)
+		return json.Unmarshal(fileContents, &translations)
 	}
-	Translations = map[string]string{} // Clear the map to avoid previous language remaining
+	translations = map[string]string{} // Clear the map to avoid previous language remaining
 	err := loadLanguage("en")          // Load English as fallback
 	if err != nil {
 		return err
@@ -31,9 +31,9 @@ func SetLanguage(language string) error {
 	return loadLanguage(language)
 }
 
-// TranslatableText attempts to match an id to a string in current language.
-func TranslatableText(id string) string {
-	if v, ok := Translations[id]; !ok {
+// Translate attempts to match an id to a string in current language.
+func Translate(id string) string {
+	if v, ok := translations[id]; !ok {
 		return id
 	} else {
 		return v

internal/logging/logger.go

@@ -0,0 +1,51 @@
+package logging
+
+import (
+	"io"
+	"log"
+	"log/slog"
+	"os"
+	"path"
+	"time"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"github.com/go-chi/chi/v5/middleware"
+)
+
+var DebugMode = false
+
+// file returns the appropriate filename for log
+// (log_dir/hibiscus_YYYY-MM-DD_HH:MM:SS.log)
+func file() string {
+	return config.Cfg.LogDir + "/hibiscus_" + time.Now().In(config.Cfg.Timezone).Format("2006-01-02_15:04:05") + ".log"
+}
+
+// LogInit makes slog output to both os.Stdout and a file if needed, and sets slog.LevelDebug if enabled.
+func LogInit() {
+	logFile := file()
+	var w io.Writer = os.Stdout
+	if config.Cfg.LogToFile {
+		// Create dir in case it doesn't exist yet to avoid errors
+		err := os.MkdirAll(path.Dir(logFile), 0755)
+		if err != nil {
+			slog.Error("error creating log dir, logging to stdout only", "path", path.Dir(logFile), "error", err)
+		} else {
+			f, err := os.OpenFile(logFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
+			if err != nil {
+				slog.Error("error opening log file, logging to stdout only", "path", logFile, "error", err)
+				return
+			}
+			// No defer f.Close() because that breaks the MultiWriter
+			w = io.MultiWriter(f, os.Stdout)
+		}
+	}
+
+	// Make slog and chi use intended format
+	var opts *slog.HandlerOptions
+	if DebugMode {
+		opts = &slog.HandlerOptions{Level: slog.LevelDebug}
+	}
+	slog.SetDefault(slog.New(slog.NewTextHandler(w, opts)))
+	middleware.DefaultLogger = middleware.RequestLogger(&middleware.DefaultLogFormatter{Logger: log.Default(), NoColor: true})
+	slog.Debug("Debug mode enabled") // This string is only shown if debugging
+}

internal/server/api/main.go

@@ -0,0 +1,34 @@
+package api
+
+import (
+	"net/http"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/auth"
+	"github.com/go-chi/chi/v5"
+)
+
+var ApiRouter *chi.Mux
+
+func init() {
+	ApiRouter = chi.NewRouter()
+	ApiRouter.Use(auth.BasicAuth)
+	ApiRouter.Get("/readme", func(w http.ResponseWriter, r *http.Request) { getFile("readme", w) })
+	ApiRouter.Post("/readme", func(w http.ResponseWriter, r *http.Request) { postFile("readme", w, r) })
+	ApiRouter.Get("/day", func(w http.ResponseWriter, r *http.Request) { fileList("day", w) })
+	ApiRouter.Get("/day/{day}", getDay)
+	ApiRouter.Get("/notes", func(w http.ResponseWriter, r *http.Request) { fileList("notes", w) })
+	ApiRouter.Get("/notes/{note}", getNote)
+	ApiRouter.Post("/notes/{note}", postNote)
+	ApiRouter.Get("/today", func(w http.ResponseWriter, r *http.Request) {
+		getFile(files.DataFile("day/"+config.Cfg.TodayDate()), w)
+	})
+	ApiRouter.Post("/today", func(w http.ResponseWriter, r *http.Request) {
+		postFile(files.DataFile("day/"+config.Cfg.TodayDate()), w, r)
+	})
+	ApiRouter.Get("/export", files.GetExport)
+	ApiRouter.Get("/grace", graceStatus)
+	ApiRouter.Get("/version", getVersion)
+	ApiRouter.Get("/reload", configReload)
+}

internal/server/api/routes.go

@@ -0,0 +1,124 @@
+package api
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"os"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/util"
+	"github.com/go-chi/chi/v5"
+)
+
+// getFile returns raw contents of a file.
+func getFile(filename string, w http.ResponseWriter) {
+	fileContents, err := files.Read(filename)
+	if err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			http.Error(w, "file not found", http.StatusNotFound)
+		} else {
+			http.Error(w, "error reading found", http.StatusNotFound)
+		}
+		return
+	}
+	util.HandleWrite(w.Write(fileContents))
+}
+
+// postFile writes contents of Request.Body to a file.
+func postFile(filename string, w http.ResponseWriter, r *http.Request) {
+	body, err := io.ReadAll(r.Body)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		util.HandleWrite(w.Write([]byte("error reading body")))
+		return
+	}
+	err = files.Save(filename, body)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		util.HandleWrite(w.Write([]byte("error saving file")))
+		return
+	}
+	util.HandleWrite(w.Write([]byte("wrote to file")))
+	w.WriteHeader(http.StatusOK)
+}
+
+// fileList returns JSON list of filenames in a directory without extensions or path.
+func fileList(directory string, w http.ResponseWriter) {
+	filenames, err := files.List(directory)
+	if err != nil {
+		http.Error(w, "error searching for files", http.StatusInternalServerError)
+		return
+	}
+	filenamesJson, err := json.Marshal(filenames)
+	if err != nil {
+		http.Error(w, "error marshaling json", http.StatusInternalServerError)
+		return
+	}
+	util.HandleWrite(w.Write(filenamesJson))
+}
+
+// getDay returns raw contents of a daily file specified in URL.
+func getDay(w http.ResponseWriter, r *http.Request) {
+	dayString := chi.URLParam(r, "day")
+	if dayString == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		util.HandleWrite(w.Write([]byte("day not specified")))
+		return
+	}
+	getFile(files.DataFile("day/"+dayString), w)
+}
+
+// getNote returns contents of a note specified in URL.
+func getNote(w http.ResponseWriter, r *http.Request) {
+	noteString := chi.URLParam(r, "note")
+	if noteString == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		util.HandleWrite(w.Write([]byte("note not specified")))
+		return
+	}
+	getFile(files.DataFile("notes/"+noteString), w)
+}
+
+// postNote writes contents of Request.Body to a note specified in URL.
+func postNote(w http.ResponseWriter, r *http.Request) {
+	noteString := chi.URLParam(r, "note")
+	if noteString == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		util.HandleWrite(w.Write([]byte("note not specified")))
+		return
+	}
+	postFile(files.DataFile("notes/"+noteString), w, r)
+}
+
+// graceStatus returns "true" if grace period is active, and "false" otherwise.
+func graceStatus(w http.ResponseWriter, r *http.Request) {
+	value := "false"
+	if config.Cfg.Grace() {
+		value = "true"
+	}
+	util.HandleWrite(w.Write([]byte(value)))
+	w.WriteHeader(http.StatusOK)
+}
+
+// getVersion returns current app version.
+func getVersion(w http.ResponseWriter, r *http.Request) {
+	util.HandleWrite(w.Write([]byte(config.Info.Version())))
+	w.WriteHeader(http.StatusOK)
+}
+
+// configReload reloads the config. It then redirects back if Referer field is present.
+func configReload(w http.ResponseWriter, r *http.Request) {
+	err := config.Cfg.Reload()
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		util.HandleWrite(w.Write([]byte(err.Error())))
+	}
+	if r.Referer() != "" {
+		http.Redirect(w, r, r.Header.Get("Referer"), http.StatusFound)
+		return
+	}
+	w.WriteHeader(http.StatusOK)
+}

internal/server/auth/auth.go

@@ -0,0 +1,39 @@
+package auth
+
+import (
+	"crypto/sha256"
+	"crypto/subtle"
+	"net/http"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+)
+
+// BasicAuth middleware handles authentication & authorization for the app.
+// It uses BasicAuth because I doubt there is a need for something sophisticated in a small hobby project.
+// Originally taken from Alex Edwards's https://www.alexedwards.net/blog/basic-authentication-in-go, MIT Licensed (13.03.2024).
+func BasicAuth(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		username, password, ok := r.BasicAuth()
+		if ok {
+			// Calculate SHA-256 hashes for equal length in ConstantTimeCompare
+			usernameHash := sha256.Sum256([]byte(username))
+			passwordHash := sha256.Sum256([]byte(password))
+			expectedUsernameHash := sha256.Sum256([]byte(config.Cfg.Username))
+			expectedPasswordHash := sha256.Sum256([]byte(config.Cfg.Password))
+
+			usernameMatch := subtle.ConstantTimeCompare(usernameHash[:], expectedUsernameHash[:]) == 1
+			passwordMatch := subtle.ConstantTimeCompare(passwordHash[:], expectedPasswordHash[:]) == 1
+
+			if usernameMatch && passwordMatch {
+				next.ServeHTTP(w, r)
+				return
+			} else {
+				noteLoginFail(username, password, r)
+			}
+		}
+
+		// Unauthorized, inform client that we have auth and return 401
+		w.Header().Set("WWW-Authenticate", `Basic realm="restricted", charset="UTF-8"`)
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+	})
+}

internal/server/auth/telegram.go

@@ -0,0 +1,77 @@
+package auth
+
+import (
+	"fmt"
+	"log/slog"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/lang"
+)
+
+
+type failedLogin struct {
+	Username  string
+	Password  string
+	Timestamp time.Time
+}
+
+var failedLogins []failedLogin
+
+// noteLoginFail attempts to log and counteract brute-force attacks.
+func noteLoginFail(username string, password string, r *http.Request) {
+	slog.Warn("failed auth", "username", username, "password", password, "address", r.RemoteAddr)
+	notifyTelegram(fmt.Sprintf(lang.Translate("info.telegram.auth_fail")+":\nusername=%s\npassword=%s\nremote=%s", username, password, r.RemoteAddr))
+
+	attempt := failedLogin{username, password, time.Now()}
+	updatedLogins := []failedLogin{attempt}
+	for _, attempt := range failedLogins {
+		if 100 > time.Since(attempt.Timestamp).Seconds() {
+			updatedLogins = append(updatedLogins, attempt)
+		}
+	}
+	failedLogins = updatedLogins
+
+	// At least 3 failed attempts in last 100 seconds -> likely brute-force
+	if len(failedLogins) >= 3 && config.Cfg.Scram {
+		scram()
+	}
+}
+
+// notifyTelegram attempts to send a message to the user through Telegram.
+func notifyTelegram(msg string) {
+	if config.Cfg.TelegramChat == "" || config.Cfg.TelegramToken == "" {
+		slog.Debug("ignoring telegram request due to lack of credentials")
+		return
+	}
+	client := &http.Client{}
+	data := "chat_id=" + config.Cfg.TelegramChat + "&text=" + msg
+	if config.Cfg.TelegramTopic != "" {
+		data += "&message_thread_id=" + config.Cfg.TelegramTopic
+	}
+	req, err := http.NewRequest("POST", "https://api.telegram.org/bot"+config.Cfg.TelegramToken+"/sendMessage", strings.NewReader(data))
+	if err != nil {
+		slog.Error("failed telegram request", "error", err)
+		return
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	resp, err := client.Do(req)
+	if err != nil {
+		slog.Error("failed telegram request", "error", err)
+		return
+	}
+
+	if resp.StatusCode != 200 {
+		slog.Error("failed telegram request", "status", resp.Status)
+	}
+}
+
+// scram shuts down the service, useful in case of suspected attack.
+func scram() {
+	slog.Warn("SCRAM triggered, shutting down")
+	notifyTelegram(lang.Translate("info.telegram.scram"))
+	os.Exit(0)
+}

internal/server/main.go

@@ -0,0 +1,38 @@
+package server
+
+import (
+	"embed"
+	"log"
+	"log/slog"
+	"net/http"
+	"strconv"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/api"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/routes"
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/chi/v5/middleware"
+)
+
+// public contains the static files e.g. CSS, JS.
+//
+//go:embed public
+var public embed.FS
+
+// Serve starts the app's web server.
+func Serve() {
+	r := chi.NewRouter()
+	r.Use(middleware.RealIP)
+	r.Use(middleware.Logger, middleware.CleanPath, middleware.StripSlashes)
+	r.NotFound(routes.NotFound)
+
+	r.Mount("/", routes.UserRouter) // User-facing routes
+	r.Mount("/api", api.ApiRouter)  // API routes
+
+	// Static files
+	fs := http.FileServer(http.FS(public))
+	r.Handle("/public/*", fs)
+
+	slog.Info("🌺 Website working", "port", config.Cfg.Port)
+	log.Fatal(http.ListenAndServe(":"+strconv.Itoa(config.Cfg.Port), r))
+}

internal/server/routes/days.go

@@ -0,0 +1,66 @@
+package routes
+
+import (
+	"html/template"
+	"net/http"
+	"strings"
+	"time"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/lang"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/util"
+	"github.com/go-chi/chi/v5"
+)
+
+// getDays calls getEntries for previous days' entries.
+func getDays(w http.ResponseWriter, r *http.Request) {
+	description := template.HTML(
+		"<a href=\"#footer\">" + template.HTMLEscapeString(lang.Translate("prompt.days")) + "</a>")
+	getEntries(w, r, lang.Translate("title.days"), description, "day", func(files []string) []Entry {
+		var filesFormatted []Entry
+		for i := range files {
+			v := files[len(files)-1-i] // This is suboptimal, but reverse order is better here
+			dayString := v
+			t, err := time.Parse(time.DateOnly, v)
+			if err == nil {
+				dayString = t.Format("02 Jan 2006")
+			}
+
+			// Fancy text for today and tomorrow
+			// This looks bad, but strings.Title is deprecated, and I'm not importing a golang.org/x package for this...
+			// (chances we ever run into tomorrow are really low)
+			if v == config.Cfg.TodayDate() {
+				dayString = lang.Translate("link.today")
+				dayString = strings.ToTitle(string([]rune(dayString)[0])) + string([]rune(dayString)[1:])
+			} else if v > config.Cfg.TodayDate() {
+				dayString = lang.Translate("link.tomorrow")
+				dayString = strings.ToTitle(string([]rune(dayString)[0])) + string([]rune(dayString)[1:])
+			}
+			filesFormatted = append(filesFormatted, Entry{Title: dayString, Link: "day/" + v})
+		}
+		return filesFormatted
+	})
+}
+
+// getDay calls getEntry for a day entry.
+func getDay(w http.ResponseWriter, r *http.Request) {
+	dayString := chi.URLParam(r, "day")
+	if dayString == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		util.HandleWrite(w.Write([]byte("day not specified")))
+		return
+	}
+	if dayString == config.Cfg.TodayDate() { // Today can still be edited
+		http.Redirect(w, r, "/", http.StatusFound)
+		return
+	}
+
+	title := dayString
+	t, err := time.Parse(time.DateOnly, dayString)
+	if err == nil { // This is low priority so silently fail
+		title = t.Format("02 Jan 2006")
+	}
+
+	getEntry(w, r, title, files.DataFile("day/"+dayString), false)
+}

internal/server/routes/entries.go

@@ -0,0 +1,80 @@
+package routes
+
+import (
+	"errors"
+	"html/template"
+	"log/slog"
+	"net/http"
+	"os"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/templates"
+)
+
+type EntryList struct {
+	Title       string
+	Description template.HTML
+	Entries     []Entry
+}
+
+type Entry struct {
+	Title   string
+	Content string
+	Link    string
+}
+
+type formatEntries func([]string) []Entry
+
+// getEntries handles showing a list.
+func getEntries(w http.ResponseWriter, r *http.Request, title string, description template.HTML, dir string, format formatEntries) {
+	filesList, err := files.List(dir)
+	if err != nil {
+		slog.Error("error reading file list", "directory", dir, "error", err)
+		InternalError(w, r)
+		return
+	}
+	var filesFormatted = format(filesList)
+
+	err = templates.List.ExecuteTemplate(w, "base", EntryList{Title: title, Description: description, Entries: filesFormatted})
+	if err != nil {
+		slog.Error("error executing template", "error", err)
+		InternalError(w, r)
+		return
+	}
+}
+
+// getEntry handles showing a single file, editable or otherwise.
+func getEntry(w http.ResponseWriter, r *http.Request, title string, filename string, editable bool) {
+	entry, err := files.Read(filename)
+	if err != nil {
+		if editable && errors.Is(err, os.ErrNotExist) {
+			entry = []byte("")
+		} else {
+			slog.Error("error reading entry file", "error", err, "file", filename)
+			InternalError(w, r)
+			return
+		}
+	}
+
+	if editable {
+		err = templates.Edit.ExecuteTemplate(w, "base", Entry{Title: title, Content: string(entry)})
+	} else {
+		err = templates.View.ExecuteTemplate(w, "base", Entry{Title: title, Content: string(entry)})
+	}
+	if err != nil {
+		InternalError(w, r)
+		return
+	}
+}
+
+// postEntry saves value of "text" HTML form component to a file and redirects back to Referer if present.
+func postEntry(filename string, w http.ResponseWriter, r *http.Request) {
+	err := files.Save(filename, []byte(r.FormValue("text")))
+	if err != nil {
+		slog.Error("error saving file", "error", err, "file", filename)
+	}
+	if r.Referer() != "" {
+		http.Redirect(w, r, r.Header.Get("Referer"), http.StatusFound)
+		return
+	}
+}

internal/server/routes/errors.go

@@ -0,0 +1,32 @@
+package routes
+
+import (
+	"log/slog"
+	"net/http"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/templates"
+)
+
+// NotFound returns a user-friendly 404 error page.
+func NotFound(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(404)
+
+	err := templates.Template404.Execute(w, nil)
+	if err != nil {
+		slog.Error("error rendering error 404 page", "error", err)
+		InternalError(w, r)
+		return
+	}
+}
+
+// InternalError returns a user-friendly 500 error page.
+func InternalError(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(500)
+
+	err := templates.Template500.Execute(w, nil)
+	if err != nil { // Well this is awkward
+		slog.Error("error rendering error 500 page", "error", err)
+		http.Error(w, "500. Something went *very* wrong.", http.StatusInternalServerError)
+		return
+	}
+}

internal/server/routes/main.go

@@ -0,0 +1,38 @@
+package routes
+
+import (
+	"net/http"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/lang"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/auth"
+	"github.com/go-chi/chi/v5"
+)
+
+var UserRouter *chi.Mux
+
+func init() {
+	UserRouter = chi.NewRouter()
+	UserRouter.Use(auth.BasicAuth)
+	UserRouter.Get("/", func(w http.ResponseWriter, r *http.Request) {
+		getEntry(w, r, lang.Translate("title.today"), files.DataFile("day/"+config.Cfg.TodayDate()), true)
+	})
+	UserRouter.Post("/", func(w http.ResponseWriter, r *http.Request) {
+		postEntry(files.DataFile("day/"+config.Cfg.TodayDate()), w, r)
+	})
+	UserRouter.Get("/day", getDays)
+	UserRouter.Get("/day/{day}", getDay)
+	UserRouter.Get("/notes", getNotes)
+	UserRouter.Get("/notes/{note}", getNote)
+	UserRouter.Post("/notes/{note}", postNote)
+	UserRouter.Get("/info", getInfo)
+	UserRouter.Get("/readme", func(w http.ResponseWriter, r *http.Request) {
+		getEntry(w, r, "readme.txt", files.DataFile("readme"), true)
+	})
+	UserRouter.Post("/readme", func(w http.ResponseWriter, r *http.Request) { postEntry(files.DataFile("readme"), w, r) })
+	UserRouter.Get("/config", func(w http.ResponseWriter, r *http.Request) {
+		getEntry(w, r, "config.txt", config.ConfigFile, true)
+	})
+	UserRouter.Post("/config", postConfig)
+}

internal/server/routes/misc.go

@@ -0,0 +1,28 @@
+package routes
+
+import (
+	"log/slog"
+	"net/http"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/templates"
+)
+
+// postConfig calls postEntry for config file, then reloads the config.
+func postConfig(w http.ResponseWriter, r *http.Request) {
+	postEntry(config.ConfigFile, w, r)
+	err := config.Cfg.Reload()
+	if err != nil {
+		slog.Error("error reloading config", "error", err)
+	}
+}
+
+// getInfo renders the info page.
+func getInfo(w http.ResponseWriter, r *http.Request) {
+	err := templates.Info.ExecuteTemplate(w, "base", config.Info)
+	if err != nil {
+		slog.Error("error executing template", "error", err)
+		InternalError(w, r)
+		return
+	}
+}

internal/server/routes/notes.go

@@ -0,0 +1,55 @@
+package routes
+
+import (
+	"html/template"
+	"net/http"
+	"net/url"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/files"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/lang"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/server/util"
+	"github.com/go-chi/chi/v5"
+)
+
+// getNotes calls getEntries for all notes.
+func getNotes(w http.ResponseWriter, r *http.Request) {
+	// This is suboptimal, but will do...
+	description := template.HTML(
+		"<a href=\"#\" onclick='newNote(\"" + template.HTMLEscapeString(lang.Translate("prompt.notes")) + "\")'>" + template.HTMLEscapeString(lang.Translate("button.notes")) + "</a>" +
+			" <noscript>(" + template.HTMLEscapeString(lang.Translate("noscript.notes")) + ")</noscript>")
+	getEntries(w, r, lang.Translate("title.notes"), description, "notes", func(files []string) []Entry {
+		var filesFormatted []Entry
+		for _, v := range files {
+			// titleString := strings.Replace(v, "-", " ", -1) // This would be cool, but what if I need a hyphen?
+			filesFormatted = append(filesFormatted, Entry{Title: v, Link: "notes/" + v})
+		}
+		return filesFormatted
+	})
+}
+
+// getNote calls getEntry for a note.
+func getNote(w http.ResponseWriter, r *http.Request) {
+	noteString := chi.URLParam(r, "note")
+	if noteString == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		util.HandleWrite(w.Write([]byte("note not specified")))
+		return
+	}
+	// Handle non-latin note names
+	if decodedNote, err := url.QueryUnescape(noteString); err == nil {
+		noteString = decodedNote
+	}
+
+	getEntry(w, r, noteString, files.DataFile("notes/"+noteString), true)
+}
+
+// postNote calls postEntry for a note.
+func postNote(w http.ResponseWriter, r *http.Request) {
+	noteString := chi.URLParam(r, "note")
+	if noteString == "" {
+		w.WriteHeader(http.StatusBadRequest)
+		util.HandleWrite(w.Write([]byte("note not specified")))
+		return
+	}
+	postEntry(files.DataFile("notes/"+noteString), w, r)
+}

internal/server/util/handle.go

@@ -0,0 +1,11 @@
+package util
+
+import "log/slog"
+
+// HandleWrite "handles" error in output of ResponseWriter.Write.
+// Much useful very wow.
+func HandleWrite(_ int, err error) {
+	if err != nil {
+		slog.Error("error writing response", "error", err)
+	}
+}

internal/templates/main.go

@@ -0,0 +1,39 @@
+package templates
+
+import (
+	"embed"
+	"html/template"
+	"log/slog"
+
+	"git.a71.su/Andrew71/hibiscus-txt/internal/config"
+	"git.a71.su/Andrew71/hibiscus-txt/internal/lang"
+)
+
+// pages contains the HTML templates used by the app.
+//
+//go:embed pages
+var pages embed.FS
+
+// EmbeddedPage returns contents of a file in Pages while "handling" potential errors.
+func EmbeddedPage(name string) []byte {
+	data, err := pages.ReadFile(name)
+	if err != nil {
+		slog.Error("error reading embedded file", "err", err)
+		return []byte("")
+	}
+	return data
+}
+
+var templateFuncs = map[string]interface{}{
+	"translate": lang.Translate,
+	"info":             func() config.AppInfo { return config.Info },
+	"config":           func() config.Config { return config.Cfg },
+}
+var Edit = template.Must(template.New("").Funcs(templateFuncs).ParseFS(pages, "pages/base.html", "pages/edit.html"))
+var View = template.Must(template.New("").Funcs(templateFuncs).ParseFS(pages, "pages/base.html", "pages/entry.html"))
+var List = template.Must(template.New("").Funcs(templateFuncs).ParseFS(pages, "pages/base.html", "pages/list.html"))
+
+var Info = template.Must(template.New("").Funcs(templateFuncs).ParseFS(pages, "pages/base.html", "pages/info.html"))
+
+var Template404 = template.Must(template.New("404").Funcs(templateFuncs).ParseFS(pages, "pages/error/404.html"))
+var Template500 = template.Must(template.New("500").Funcs(templateFuncs).ParseFS(pages, "pages/error/500.html"))

internal/templates/pages/base.html

@@ -1,13 +1,13 @@
 {{ define "header" }}
 <header>
     <h1>{{ config.Title }}</h1>
-    <p>{{ translatableText "time.date" }} <span id="today-date">a place</span> <span id="grace" hidden>({{ translatableText "time.grace" }})</span></p>
+    <p>{{ translate "time.date" }} <span id="today-date">a place</span> <span id="grace" hidden>({{ translate "time.grace" }})</span></p>
 </header>
 {{ end }}
 
 {{- define "base" -}}
 <!DOCTYPE html>
-<html lang="{{ translatableText "lang" }}">
+<html lang="{{ translate "lang" }}">
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
@@ -35,7 +35,7 @@
 
 {{ define "footer" }}
 <footer id="footer">
-    <p><a href="/">{{ translatableText "link.today" }}</a> | <a href="/day">{{ translatableText "link.days" }}</a> | <a href="/notes">{{ translatableText "link.notes" }}</a>
-    <span style="float:right;"><a class="no-accent" href="/info" title="{{ translatableText "link.info" }}">v{{ info.Version }}</a></span></p>
+    <p><a href="/">{{ translate "link.today" }}</a> | <a href="/day">{{ translate "link.days" }}</a> | <a href="/notes">{{ translate "link.notes" }}</a>
+    <span style="float:right;"><a class="no-accent" href="/info" title="{{ translate "link.info" }}">v{{ info.Version }}</a></span></p>
 </footer>
 {{ end }}

internal/templates/pages/edit.html

@@ -2,6 +2,6 @@
 <form method="POST">
     <h2><label for="text">{{ .Title }}:</label></h2>
     <textarea id="text" cols="40" rows="15" name="text">{{ .Content }}</textarea>
-    <button type="submit">{{ translatableText "button.save" }}</button>
+    <button type="submit">{{ translate "button.save" }}</button>
 </form>
 {{ end }}

internal/templates/pages/error/404.html

@@ -11,8 +11,8 @@
 <body>
 <main>
     <h1>Error 404 - Not Found</h1>
-    <p>{{ translatableText "error.404" }}</p>
-    <p><a href="/">{{ translatableText "error.prompt" }}</a></p>
+    <p>{{ translate "error.404" }}</p>
+    <p><a href="/">{{ translate "error.prompt" }}</a></p>
 </main>
 </body>
 </html>

internal/templates/pages/error/500.html

@@ -11,8 +11,8 @@
 <body>
 <main>
     <h1>Error 500 - Internal Server Error</h1>
-    <p>{{ translatableText "error.500" }}</p>
-    <p><a href="/">{{ translatableText "error.prompt" }}</a></p>
+    <p>{{ translate "error.500" }}</p>
+    <p><a href="/">{{ translate "error.prompt" }}</a></p>
 </main>
 </body>
 </html>

internal/templates/pages/info.html

@@ -0,0 +1,9 @@
+{{ define "main" }}
+<h2>{{ translate "title.info" }}</h2>
+<ul>
+    <li>{{ translate "info.version" }} - {{ info.Version }} (<a href="{{ .Source }}">{{ translate "info.version.link" }}</a>)</li>
+    <li><a href="/config">{{ translate "info.config" }}</a></li>
+    <li><a href="/readme">{{ translate "info.readme" }}</a></li>
+    <li><a href="/api/export" download="hibiscus">{{ translate "info.export" }}</a></li>
+</ul>
+{{ end }}

logger.go

@@ -1,35 +0,0 @@
-package main
-
-import (
-	"github.com/go-chi/chi/v5/middleware"
-	"io"
-	"log"
-	"log/slog"
-	"os"
-)
-
-var DebugMode = false
-
-// LogInit makes slog output to both os.Stdout and a file if needed, and sets slog.LevelDebug if enabled.
-func LogInit() {
-	var w io.Writer
-	if Cfg.LogToFile {
-		f, err := os.OpenFile(Cfg.LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
-		if err != nil {
-			slog.Error("error opening log file, logging to stdout", "path", Cfg.LogFile, "error", err)
-			return
-		}
-		// No defer f.Close() because that breaks the MultiWriter
-		w = io.MultiWriter(f, os.Stdout)
-	} else {
-		w = os.Stdout
-	}
-
-	// Make slog and chi use intended format
-	var opts *slog.HandlerOptions
-	if DebugMode {
-		opts = &slog.HandlerOptions{Level: slog.LevelDebug}
-	}
-	slog.SetDefault(slog.New(slog.NewTextHandler(w, opts)))
-	middleware.DefaultLogger = middleware.RequestLogger(&middleware.DefaultLogFormatter{Logger: log.Default(), NoColor: true})
-}

main.go

@@ -1,9 +1,7 @@
 package main
 
-var Cfg = ConfigInit()
+import "git.a71.su/Andrew71/hibiscus-txt/internal/app"
 
 func main() {
-	FlagInit()
-	LogInit()
-	Serve()
+	app.Execute()
 }

pages/info.html

@@ -1,9 +0,0 @@
-{{ define "main" }}
-<h2>{{ translatableText "title.info" }}</h2>
-<ul>
-    <li>{{ translatableText "info.version" }} - {{ info.Version }} (<a href="{{ .SourceLink }}">{{ translatableText "info.version.link" }}</a>)</li>
-    <li><a href="/config">{{ translatableText "info.config" }}</a></li>
-    <li><a href="/readme">{{ translatableText "info.readme" }}</a></li>
-    <li><a href="/api/export" download="hibiscus">{{ translatableText "info.export" }}</a></li>
-</ul>
-{{ end }}

routes.go

@@ -1,234 +0,0 @@
-package main
-
-import (
-	"embed"
-	"errors"
-	"html/template"
-	"log/slog"
-	"net/http"
-	"net/url"
-	"os"
-	"strings"
-	"time"
-
-	"github.com/go-chi/chi/v5"
-)
-
-type EntryList struct {
-	Title       string
-	Description template.HTML
-	Entries     []Entry
-}
-
-type Entry struct {
-	Title   string
-	Content string
-	Link    string
-}
-
-type formatEntries func([]string) []Entry
-
-// Public contains the static files e.g. CSS, JS.
-//
-//go:embed public
-var Public embed.FS
-
-// Pages contains the HTML templates used by the app.
-//
-//go:embed pages
-var Pages embed.FS
-
-// EmbeddedPage returns contents of a file in Pages while "handling" potential errors.
-func EmbeddedPage(name string) []byte {
-	data, err := Pages.ReadFile(name)
-	if err != nil {
-		slog.Error("error reading embedded file", "err", err)
-	}
-	return data
-}
-
-var templateFuncs = map[string]interface{}{
-	"translatableText": TranslatableText,
-	"info":             func() AppInfo { return Info },
-	"config":           func() Config { return Cfg },
-}
-var editTemplate = template.Must(template.New("").Funcs(templateFuncs).ParseFS(Pages, "pages/base.html", "pages/edit.html"))
-var viewTemplate = template.Must(template.New("").Funcs(templateFuncs).ParseFS(Pages, "pages/base.html", "pages/entry.html"))
-var listTemplate = template.Must(template.New("").Funcs(templateFuncs).ParseFS(Pages, "pages/base.html", "pages/list.html"))
-
-var template404 = template.Must(template.New("404").Funcs(templateFuncs).ParseFS(Pages, "pages/error/404.html"))
-
-// NotFound returns a user-friendly 404 error page.
-func NotFound(w http.ResponseWriter, r *http.Request) {
-	w.WriteHeader(404)
-
-	err := template404.Execute(w, nil)
-	if err != nil {
-		slog.Error("error rendering error 404 page", "error", err)
-		InternalError(w, r)
-		return
-	}
-}
-
-var template500 = template.Must(template.New("500").Funcs(templateFuncs).ParseFS(Pages, "pages/error/500.html"))
-
-// InternalError returns a user-friendly 500 error page.
-func InternalError(w http.ResponseWriter, r *http.Request) {
-	w.WriteHeader(500)
-
-	err := template500.Execute(w, nil)
-	if err != nil { // Well this is awkward
-		slog.Error("error rendering error 500 page", "error", err)
-		HandleWrite(w.Write([]byte("500. Something went *very* wrong.")))
-		return
-	}
-}
-
-// GetEntries handles showing a list.
-func GetEntries(w http.ResponseWriter, r *http.Request, title string, description template.HTML, dir string, format formatEntries) {
-	filesList, err := ListFiles(dir)
-	if err != nil {
-		slog.Error("error reading file list", "directory", dir, "error", err)
-		InternalError(w, r)
-		return
-	}
-	var filesFormatted = format(filesList)
-
-	err = listTemplate.ExecuteTemplate(w, "base", EntryList{Title: title, Description: description, Entries: filesFormatted})
-	if err != nil {
-		slog.Error("error executing template", "error", err)
-		InternalError(w, r)
-		return
-	}
-}
-
-// GetDays calls GetEntries for previous days' entries.
-func GetDays(w http.ResponseWriter, r *http.Request) {
-	description := template.HTML(
-		"<a href=\"#footer\">" + template.HTMLEscapeString(TranslatableText("prompt.days")) + "</a>")
-	GetEntries(w, r, TranslatableText("title.days"), description, "day", func(files []string) []Entry {
-		var filesFormatted []Entry
-		for i := range files {
-			v := files[len(files)-1-i] // This is suboptimal, but reverse order is better here
-			dayString := v
-			t, err := time.Parse(time.DateOnly, v)
-			if err == nil {
-				dayString = t.Format("02 Jan 2006")
-			}
-
-			// Fancy text for today and tomorrow
-			// This looks bad, but strings.Title is deprecated, and I'm not importing a golang.org/x package for this...
-			// (chances we ever run into tomorrow are really low)
-			if v == TodayDate() {
-				dayString = TranslatableText("link.today")
-				dayString = strings.ToTitle(string([]rune(dayString)[0])) + string([]rune(dayString)[1:])
-			} else if v > TodayDate() {
-				dayString = TranslatableText("link.tomorrow")
-				dayString = strings.ToTitle(string([]rune(dayString)[0])) + string([]rune(dayString)[1:])
-			}
-			filesFormatted = append(filesFormatted, Entry{Title: dayString, Link: "day/" + v})
-		}
-		return filesFormatted
-	})
-}
-
-// GetNotes calls GetEntries for all notes.
-func GetNotes(w http.ResponseWriter, r *http.Request) {
-	// This is suboptimal, but will do...
-	description := template.HTML(
-		"<a href=\"#\" onclick='newNote(\"" + template.HTMLEscapeString(TranslatableText("prompt.notes")) + "\")'>" + template.HTMLEscapeString(TranslatableText("button.notes")) + "</a>" +
-			" <noscript>(" + template.HTMLEscapeString(TranslatableText("noscript.notes")) + ")</noscript>")
-	GetEntries(w, r, TranslatableText("title.notes"), description, "notes", func(files []string) []Entry {
-		var filesFormatted []Entry
-		for _, v := range files {
-			// titleString := strings.Replace(v, "-", " ", -1) // This would be cool, but what if I need a hyphen?
-			filesFormatted = append(filesFormatted, Entry{Title: v, Link: "notes/" + v})
-		}
-		return filesFormatted
-	})
-}
-
-// GetEntry handles showing a single file, editable or otherwise.
-func GetEntry(w http.ResponseWriter, r *http.Request, title string, filename string, editable bool) {
-	entry, err := ReadFile(filename)
-	if err != nil {
-		if editable && errors.Is(err, os.ErrNotExist) {
-			entry = []byte("")
-		} else {
-			slog.Error("error reading entry file", "error", err, "file", filename)
-			InternalError(w, r)
-			return
-		}
-	}
-
-	if editable {
-		err = editTemplate.ExecuteTemplate(w, "base", Entry{Title: title, Content: string(entry)})
-	} else {
-		err = viewTemplate.ExecuteTemplate(w, "base", Entry{Title: title, Content: string(entry)})
-	}
-	if err != nil {
-		InternalError(w, r)
-		return
-	}
-}
-
-// PostEntry saves value of "text" HTML form component to a file and redirects back to Referer if present.
-func PostEntry(filename string, w http.ResponseWriter, r *http.Request) {
-	err := SaveFile(filename, []byte(r.FormValue("text")))
-	if err != nil {
-		slog.Error("error saving file", "error", err, "file", filename)
-	}
-	if r.Referer() != "" {
-		http.Redirect(w, r, r.Header.Get("Referer"), http.StatusFound)
-		return
-	}
-}
-
-// GetDay calls GetEntry for a day entry.
-func GetDay(w http.ResponseWriter, r *http.Request) {
-	dayString := chi.URLParam(r, "day")
-	if dayString == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		HandleWrite(w.Write([]byte("day not specified")))
-		return
-	}
-	if dayString == TodayDate() { // Today can still be edited
-		http.Redirect(w, r, "/", http.StatusFound)
-		return
-	}
-
-	title := dayString
-	t, err := time.Parse(time.DateOnly, dayString)
-	if err == nil { // This is low priority so silently fail
-		title = t.Format("02 Jan 2006")
-	}
-
-	GetEntry(w, r, title, DataFile("day/"+dayString), false)
-}
-
-// GetNote calls GetEntry for a note.
-func GetNote(w http.ResponseWriter, r *http.Request) {
-	noteString := chi.URLParam(r, "note")
-	if noteString == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		HandleWrite(w.Write([]byte("note not specified")))
-		return
-	}
-	// Handle non-latin note names
-	if decodedNote, err := url.QueryUnescape(noteString); err == nil {
-		noteString = decodedNote
-	}
-
-	GetEntry(w, r, noteString, DataFile("notes/"+noteString), true)
-}
-
-// PostNote calls PostEntry for a note.
-func PostNote(w http.ResponseWriter, r *http.Request) {
-	noteString := chi.URLParam(r, "note")
-	if noteString == "" {
-		w.WriteHeader(http.StatusBadRequest)
-		HandleWrite(w.Write([]byte("note not specified")))
-		return
-	}
-	PostEntry(DataFile("notes/"+noteString), w, r)
-}

serve.go

@@ -1,63 +0,0 @@
-package main
-
-import (
-	"github.com/go-chi/chi/v5"
-	"github.com/go-chi/chi/v5/middleware"
-	"log"
-	"log/slog"
-	"net/http"
-	"strconv"
-)
-
-// Serve starts the app's web server.
-func Serve() {
-	r := chi.NewRouter()
-	r.Use(middleware.RealIP)
-	r.Use(middleware.Logger, middleware.CleanPath, middleware.StripSlashes)
-	r.NotFound(NotFound)
-
-	// Routes ==========
-	userRouter := chi.NewRouter()
-	userRouter.Use(BasicAuth)
-	userRouter.Get("/", func(w http.ResponseWriter, r *http.Request) {
-		GetEntry(w, r, TranslatableText("title.today"), DataFile("day/"+TodayDate()), true)
-	})
-	userRouter.Post("/", func(w http.ResponseWriter, r *http.Request) { PostEntry(DataFile("day/"+TodayDate()), w, r) })
-	userRouter.Get("/day", GetDays)
-	userRouter.Get("/day/{day}", GetDay)
-	userRouter.Get("/notes", GetNotes)
-	userRouter.Get("/notes/{note}", GetNote)
-	userRouter.Post("/notes/{note}", PostNote)
-	userRouter.Get("/info", GetInfo)
-	userRouter.Get("/readme", func(w http.ResponseWriter, r *http.Request) { GetEntry(w, r, "readme.txt", DataFile("readme"), true) })
-	userRouter.Post("/readme", func(w http.ResponseWriter, r *http.Request) { PostEntry(DataFile("readme"), w, r) })
-	userRouter.Get("/config", func(w http.ResponseWriter, r *http.Request) { GetEntry(w, r, "config.txt", ConfigFile, true) })
-	userRouter.Post("/config", PostConfig)
-	r.Mount("/", userRouter)
-
-	// API =============
-	apiRouter := chi.NewRouter()
-	apiRouter.Use(BasicAuth)
-	apiRouter.Get("/readme", func(w http.ResponseWriter, r *http.Request) { GetFileApi("readme", w) })
-	apiRouter.Post("/readme", func(w http.ResponseWriter, r *http.Request) { PostFileApi("readme", w, r) })
-	apiRouter.Get("/day", func(w http.ResponseWriter, r *http.Request) { GetFileList("day", w) })
-	apiRouter.Get("/day/{day}", GetDayApi)
-	apiRouter.Get("/notes", func(w http.ResponseWriter, r *http.Request) { GetFileList("notes", w) })
-	apiRouter.Get("/notes/{note}", GetNoteApi)
-	apiRouter.Post("/notes/{note}", PostNoteApi)
-	apiRouter.Get("/today", func(w http.ResponseWriter, r *http.Request) { GetFileApi(DataFile("day/"+TodayDate()), w) })
-	apiRouter.Post("/today", func(w http.ResponseWriter, r *http.Request) { PostEntry(DataFile("day/"+TodayDate()), w, r) })
-	apiRouter.Get("/export", GetExport)
-	apiRouter.Get("/grace", GraceActiveApi)
-	apiRouter.Get("/version", GetVersionApi)
-	apiRouter.Get("/reload", ConfigReloadApi)
-	r.Mount("/api", apiRouter)
-
-	// Static files
-	fs := http.FileServer(http.FS(Public))
-	r.Handle("/public/*", fs)
-
-	slog.Info("🌺 Website working", "port", Cfg.Port)
-	slog.Debug("Debug mode enabled")
-	log.Fatal(http.ListenAndServe(":"+strconv.Itoa(Cfg.Port), r))
-}