Merge branch 'devel'

.air.toml

@@ -0,0 +1,59 @@
+root = "."
+testdata_dir = "testdata"
+tmp_dir = "tmp"
+
+[build]
+args_bin = [
+    "-articles tmp/articles",
+    "-config tmp/config.toml",
+    "-desc 'Freiheit, Gleichheit, Brüderlichkeit, Toleranz und Humanität'",
+    "-domain localhost",
+    "-firebase tmp/firebase.json",
+    "-key tmp/key.gob",
+    "-link https://distrikt-ni-st.de",
+    "-log tmp/cpolis.log",
+    "-pdfs tmp/pdfs",
+    "-pics tmp/pics",
+    "-port 8080",
+    "-rss tmp/orientexpress_alle.rss",
+    "-title 'Freimaurer Distrikt Niedersachsen und Sachsen-Anhalt'",
+    "-web web",
+]
+bin = "./tmp/main"
+cmd = "go build -o ./tmp/main ./cmd/main.go"
+delay = 0
+exclude_dir = ["assets", "tmp", "vendor", "testdata"]
+exclude_file = []
+exclude_regex = ["_test.go"]
+exclude_unchanged = false
+follow_symlink = false
+full_bin = ""
+include_dir = []
+include_ext = ["go", "tpl", "tmpl", "html", "css"]
+include_file = []
+kill_delay = "0s"
+log = "build-errors.log"
+poll = false
+poll_interval = 0
+rerun = false
+rerun_delay = 500
+send_interrupt = false
+stop_on_error = false
+
+[color]
+app = ""
+build = "yellow"
+main = "magenta"
+runner = "green"
+watcher = "cyan"
+
+[log]
+main_only = false
+time = false
+
+[misc]
+clean_on_exit = false
+
+[screen]
+clear_on_rebuild = false
+keep_scroll = true

.gitignore

@@ -23,3 +23,4 @@ go.work
 
 # Custom stuff
 tmp/
+style.css

LICENSE

@@ -209,7 +209,7 @@ If you develop a new program, and you want it to be of the greatest possible use
 To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
 
      cpolis
-     Copyright (C) 2024  jason
+     Copyright (C) 2024  Jason Streifling
 
      This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 
@@ -221,7 +221,7 @@ Also add information on how to contact you by electronic and paper mail.
 
 If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
 
-     cpolis  Copyright (C) 2024  jason
+     cpolis  Copyright (C) 2024  Jason Streifling
      This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
      This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
 

README.md

@@ -1,3 +1,18 @@
 # cpolis
 
-cpolis is an application written in Go to serve as the backend of the Orient Express magazine.
+cpolis is an application written in Go to serve as the backend of the Orient
+Express magazine.
+
+## Installation
+
+You should have the following packages installed:
+
+- Go >= 1.22
+- MariaDB
+
+Enable and start the MariaDB service.
+
+    sudo systemctl enable --now mariadb.service
+
+Set up a dedicated MariaDB user for cpolis.
+

cmd/backend/articles.go

@@ -0,0 +1,291 @@
+package backend
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+	"time"
+)
+
+type Article struct {
+	Created       time.Time
+	Title         string
+	Description   string
+	Link          string
+	EncURL        string
+	EncType       string
+	ID            int64
+	AuthorID      int64
+	IssueID       int64
+	EditedID      int64
+	EncLength     int
+	Published     bool
+	Rejected      bool
+	IsInIssue     bool
+	AutoGenerated bool
+}
+
+func (db *DB) AddArticle(a *Article) (int64, error) {
+	var id int64
+	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
+	selectQuery := "SELECT id FROM issues WHERE published = false"
+	insertQuery := `
+    INSERT INTO articles
+        (title, description, link, enc_url, enc_length, enc_type, published,
+        rejected, author_id, issue_id, edited_id, is_in_issue, auto_generated)
+    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+    `
+
+	for i := 0; i < TxMaxRetries; i++ {
+		id, err := func() (int64, error) {
+			tx, err := db.BeginTx(context.Background(), txOptions)
+			if err != nil {
+				return 0, fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if err = tx.QueryRow(selectQuery).Scan(&id); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error getting issue ID when adding article to DB: %v", err)
+			}
+
+			result, err := tx.Exec(insertQuery, a.Title, a.Description, a.Link,
+				a.EncURL, a.EncLength, a.EncType, a.Published, a.Rejected, a.AuthorID, id,
+				a.EditedID, a.IsInIssue, a.AutoGenerated)
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error inserting article into DB: %v", err)
+			}
+
+			id, err := result.LastInsertId()
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error retrieving ID of added article: %v", err)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return 0, fmt.Errorf("error committing transaction when adding article to DB: %v", err)
+			}
+			return id, nil
+		}()
+		if err == nil {
+			return id, nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+
+	return 0, fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) GetArticle(id int64) (*Article, error) {
+	query := `
+    SELECT
+        title, created, description, link, enc_url, enc_length, enc_type,
+        published, author_id, issue_id, edited_id, is_in_issue, auto_generated
+    FROM articles
+    WHERE id = ?
+    `
+	row := db.QueryRow(query, id)
+
+	article := new(Article)
+	var created []byte
+	var err error
+
+	if err := row.Scan(&article.Title, &created, &article.Description,
+		&article.Link, &article.EncURL, &article.EncLength, &article.EncType,
+		&article.Published, &article.AuthorID, &article.IssueID, &article.EditedID,
+		&article.IsInIssue, &article.AutoGenerated); err != nil {
+		return nil, fmt.Errorf("error scanning article row: %v", err)
+	}
+
+	article.ID = id
+	article.Created, err = time.Parse("2006-01-02 15:04:05", string(created))
+	if err != nil {
+		return nil, fmt.Errorf("error parsing created: %v", err)
+	}
+
+	return article, nil
+}
+
+func (db *DB) GetCertainArticles(attribute string, value bool) ([]*Article, error) {
+	query := fmt.Sprintf(`
+    SELECT
+        id, title, created, description, link, enc_url, enc_length, enc_type,
+        author_id, issue_id, published, rejected, is_in_issue, auto_generated
+    FROM articles
+    WHERE %s = ?
+    `, attribute)
+	rows, err := db.Query(query, value)
+	if err != nil {
+		return nil, fmt.Errorf("error querying articles: %v", err)
+	}
+
+	articleList := make([]*Article, 0)
+	for rows.Next() {
+		article := new(Article)
+		var created []byte
+
+		if err = rows.Scan(&article.ID, &article.Title, &created,
+			&article.Description, &article.Link, &article.EncURL, &article.EncLength,
+			&article.EncType, &article.AuthorID, &article.IssueID, &article.Published,
+			&article.Rejected, &article.IsInIssue, &article.AutoGenerated); err != nil {
+			return nil, fmt.Errorf("error scanning article row: %v", err)
+		}
+
+		article.Created, err = time.Parse("2006-01-02 15:04:05", string(created))
+		if err != nil {
+			return nil, fmt.Errorf("error parsing created: %v", err)
+		}
+
+		articleList = append(articleList, article)
+	}
+
+	return articleList, nil
+}
+
+func (db *DB) GetCurrentIssueArticles() ([]*Article, error) {
+	var issueID int64
+	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
+	issueQuery := "SELECT id FROM issues WHERE published = false"
+	articlesQuery := `
+    SELECT
+        id, title, created, description, link, enc_url, enc_length, enc_type,
+        author_id, auto_generated
+    FROM articles
+    WHERE issue_id = ? AND published = true AND is_in_issue = true
+    `
+
+	for i := 0; i < TxMaxRetries; i++ {
+		id, err := func() ([]*Article, error) {
+			tx, err := db.BeginTx(context.Background(), txOptions)
+			if err != nil {
+				return nil, fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			row := tx.QueryRow(issueQuery)
+			if err := row.Scan(&issueID); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return nil, fmt.Errorf("error querying DB for unpublished issue: %v", err)
+			}
+
+			rows, err := tx.Query(articlesQuery, issueID)
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return nil, fmt.Errorf("error querying DB for articles of issue %v: %v", issueID, err)
+			}
+
+			articleList := make([]*Article, 0)
+			for rows.Next() {
+				article := new(Article)
+				var created []byte
+
+				if err = rows.Scan(&article.ID, &article.Title, &created,
+					&article.Description, &article.Link, &article.EncURL, &article.EncLength,
+					&article.EncType, &article.AuthorID, &article.AutoGenerated); err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return nil, fmt.Errorf("error scanning article from issue %v: %v", issueID, err)
+				}
+
+				article.Created, err = time.Parse("2006-01-02 15:04:05", string(created))
+				if err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return nil, fmt.Errorf("error parsing created: %v", err)
+				}
+
+				articleList = append(articleList, article)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return nil, fmt.Errorf("error committing transaction when getting articles of issue %v: %v", issueID, err)
+			}
+
+			return articleList, nil
+		}()
+		if err == nil {
+			return id, nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+
+	return nil, fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) AddArticleToCurrentIssue(id int64) error {
+	var issueID int64
+	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
+	selectQuery := "SELECT id FROM issues WHERE published = false"
+	updateQuery := "UPDATE articles SET issue_id = ? WHERE id = ?"
+
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx, err := db.BeginTx(context.Background(), txOptions)
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if err = tx.QueryRow(selectQuery).Scan(&issueID); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error scanning row: %v", err)
+			}
+
+			_, err = db.Exec(updateQuery, issueID, id)
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error updating issueID for article: %v", err)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction when getting articles of issue %v: %v", issueID, err)
+			}
+
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) DeleteArticle(id int64) error {
+	articlesTagsQuery := "DELETE FROM articles_tags WHERE article_id = ?"
+	articlesQuery := "DELETE FROM articles WHERE id = ?"
+
+	_, err := db.Exec(articlesTagsQuery, id)
+	if err != nil {
+		return fmt.Errorf("error deleting article %v from DB: %v", id, err)
+	}
+
+	_, err = db.Exec(articlesQuery, id)
+	if err != nil {
+		return fmt.Errorf("error deleting article %v from DB: %v", id, err)
+	}
+
+	return nil
+}

cmd/backend/articles_tags.go

@@ -0,0 +1,107 @@
+package backend
+
+import (
+	"fmt"
+	"log"
+)
+
+func (db *DB) WriteArticleTags(articleID int64, tagIDs []int64) error {
+	query := "INSERT INTO articles_tags (article_id, tag_id) VALUES (?, ?)"
+
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx, err := db.Begin()
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			for _, tagID := range tagIDs {
+				if _, err := tx.Exec(query, articleID, tagID); err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return fmt.Errorf("error inserting into articles_tags: %v", err)
+				}
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction: %v", err)
+			}
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) GetArticleTags(articleID int64) ([]*Tag, error) {
+	query := `
+    SELECT t.id, t.name
+    FROM articles a
+    INNER JOIN articles_tags at ON a.id = at.article_id
+    INNER JOIN tags t ON at.tag_id = t.id
+    WHERE a.id = ?
+    `
+	rows, err := db.Query(query, articleID)
+	if err != nil {
+		return nil, fmt.Errorf("error querying articles_tags: %v", err)
+	}
+
+	tags := make([]*Tag, 0)
+	for rows.Next() {
+		tag := new(Tag)
+		if err = rows.Scan(&tag.ID, &tag.Name); err != nil {
+			return nil, fmt.Errorf("error scanning rows: %v", err)
+		}
+		tags = append(tags, tag)
+	}
+
+	return tags, nil
+}
+
+func (db *DB) UpdateArticleTags(articleID int64, tagIDs []int64) error {
+	deleteQuery := "DELETE FROM articles_tags WHERE article_id = ?"
+	insertQuery := "INSERT INTO articles_tags (article_id, tag_id) VALUES (?, ?)"
+
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx, err := db.Begin()
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if _, err := tx.Exec(deleteQuery, articleID); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error deleting entries from articles_tags before inserting new ones: %v", err)
+			}
+
+			for _, tagID := range tagIDs {
+				if _, err := tx.Exec(insertQuery, articleID, tagID); err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return fmt.Errorf("error inserting new entries into articles_tags: %v", err)
+				}
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction: %v", err)
+			}
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}

cmd/backend/config.go

@@ -0,0 +1,250 @@
+package backend
+
+import (
+	"flag"
+	"fmt"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/BurntSushi/toml"
+)
+
+type Config struct {
+	ArticleDir  string
+	ConfigFile  string
+	DBName      string
+	Description string
+	Domain      string
+	FirebaseKey string
+	KeyFile     string
+	Link        string
+	LogFile     string
+	PDFDir      string
+	PicsDir     string
+	Port        string
+	RSSFile     string
+	Title       string
+	WebDir      string
+}
+
+func newConfig() *Config {
+	return &Config{
+		ArticleDir:  "/var/www/cpolis/articles",
+		ConfigFile:  "/etc/cpolis/config.toml",
+		DBName:      "cpolis",
+		FirebaseKey: "/var/www/cpolis/serviceAccountKey.json",
+		KeyFile:     "/var/www/cpolis/cpolis.key",
+		LogFile:     "/var/log/cpolis.log",
+		PDFDir:      "/var/www/cpolis/pdfs",
+		PicsDir:     "/var/www/cpolis/pics",
+		Port:        ":8080",
+		RSSFile:     "/var/www/cpolis/cpolis.rss",
+		WebDir:      "/var/www/cpolis/web",
+	}
+}
+
+func mkDir(path string, perm fs.FileMode) (string, error) {
+	var err error
+
+	stringSlice := strings.Split(path, "/")
+	name := stringSlice[len(stringSlice)-1]
+
+	path, err = filepath.Abs(path)
+	if err != nil {
+		return "", fmt.Errorf("error finding absolute path for %v directory: %v", name, err)
+	}
+	if err = os.MkdirAll(path, perm); err != nil {
+		return "", fmt.Errorf("error creating %v directory: %v", name, err)
+	}
+
+	return path, nil
+}
+
+func mkFile(path string, filePerm, dirPerm fs.FileMode) (string, error) {
+	var err error
+
+	path, err = filepath.Abs(path)
+	if err != nil {
+		return "", fmt.Errorf("error finding absolute path for %v: %v", path, err)
+	}
+
+	stringSlice := strings.Split(path, "/")
+	_, err = os.Stat(path)
+	if os.IsNotExist(err) {
+		dir := strings.Join(stringSlice[:len(stringSlice)-1], "/")
+		if err = os.MkdirAll(dir, dirPerm); err != nil {
+			return "", fmt.Errorf("error creating %v: %v", dir, err)
+		}
+
+		fileName := stringSlice[len(stringSlice)-1]
+		file, err := os.Create(dir + "/" + fileName)
+		if err != nil {
+			return "", fmt.Errorf("error creating %v: %v", fileName, err)
+		}
+		defer file.Close()
+		if err = file.Chmod(filePerm); err != nil {
+			return "", fmt.Errorf("error setting permissions for %v: %v", fileName, err)
+		}
+	}
+
+	return path, nil
+}
+
+func (c *Config) handleCliArgs() error {
+	var port int
+	var err error
+
+	flag.StringVar(&c.ArticleDir, "articles", c.ArticleDir, "articles directory")
+	flag.StringVar(&c.ConfigFile, "config", c.ConfigFile, "config file")
+	flag.StringVar(&c.DBName, "db", c.DBName, "DB name")
+	flag.StringVar(&c.Description, "desc", c.Description, "channel description")
+	flag.StringVar(&c.Domain, "domain", c.Domain, "domain name")
+	flag.StringVar(&c.FirebaseKey, "firebase", c.FirebaseKey, "Firebase service account key file")
+	flag.StringVar(&c.KeyFile, "key", c.KeyFile, "key file")
+	flag.StringVar(&c.Link, "link", c.Link, "channel Link")
+	flag.StringVar(&c.LogFile, "log", c.LogFile, "log file")
+	flag.StringVar(&c.PDFDir, "pdfs", c.PDFDir, "pdf directory")
+	flag.StringVar(&c.PicsDir, "pics", c.PicsDir, "pictures directory")
+	flag.StringVar(&c.RSSFile, "rss", c.RSSFile, "RSS file")
+	flag.StringVar(&c.Title, "title", c.Title, "channel title")
+	flag.StringVar(&c.WebDir, "web", c.WebDir, "web directory")
+	flag.IntVar(&port, "port", port, "port")
+	flag.Parse()
+
+	if port != 0 {
+		c.Port = fmt.Sprint(":", port)
+	}
+
+	c.ConfigFile, err = mkFile(c.ConfigFile, 0600, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up file: %v", err)
+	}
+
+	return nil
+}
+
+func (c *Config) handleFile(configFile string) error {
+	_, err := toml.DecodeFile(configFile, c)
+	if err != nil {
+		return fmt.Errorf("error reading config file: %v", err)
+	}
+
+	return nil
+}
+
+func (c *Config) setupConfig(cliConfig *Config) error {
+	var err error
+	defaultConfig := newConfig()
+
+	if cliConfig.ArticleDir != defaultConfig.ArticleDir {
+		c.ArticleDir = cliConfig.ArticleDir
+	}
+	c.ArticleDir, err = mkDir(c.ArticleDir, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up directory: %v", err)
+	}
+
+	if cliConfig.DBName != defaultConfig.DBName {
+		c.DBName = cliConfig.DBName
+	}
+
+	if cliConfig.Description != defaultConfig.Description {
+		c.Description = cliConfig.Description
+	}
+
+	if cliConfig.Domain != defaultConfig.Domain {
+		c.Domain = cliConfig.Domain
+	}
+
+	if cliConfig.FirebaseKey != defaultConfig.FirebaseKey {
+		c.FirebaseKey = cliConfig.FirebaseKey
+	}
+	c.FirebaseKey, err = mkFile(c.FirebaseKey, 0600, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up file: %v", err)
+	}
+
+	if cliConfig.KeyFile != defaultConfig.KeyFile {
+		c.KeyFile = cliConfig.KeyFile
+	}
+	c.KeyFile, err = mkFile(c.KeyFile, 0600, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up file: %v", err)
+	}
+
+	if cliConfig.Link != defaultConfig.Link {
+		c.Link = cliConfig.Link
+	}
+
+	if cliConfig.LogFile != defaultConfig.LogFile {
+		c.LogFile = cliConfig.LogFile
+	}
+	c.LogFile, err = mkFile(c.LogFile, 0600, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up file: %v", err)
+	}
+
+	if cliConfig.PDFDir != defaultConfig.PDFDir {
+		c.PDFDir = cliConfig.PDFDir
+	}
+	c.PDFDir, err = mkDir(c.PDFDir, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up directory: %v", err)
+	}
+
+	if cliConfig.PicsDir != defaultConfig.PicsDir {
+		c.PicsDir = cliConfig.PicsDir
+	}
+	c.PicsDir, err = mkDir(c.PicsDir, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up directory: %v", err)
+	}
+
+	if cliConfig.Port != defaultConfig.Port {
+		c.Port = cliConfig.Port
+	}
+
+	if cliConfig.RSSFile != defaultConfig.RSSFile {
+		c.RSSFile = cliConfig.RSSFile
+	}
+	c.RSSFile, err = mkFile(c.RSSFile, 0600, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up file: %v", err)
+	}
+
+	if cliConfig.Title != defaultConfig.Title {
+		c.Title = cliConfig.Title
+	}
+
+	if cliConfig.WebDir != defaultConfig.WebDir {
+		c.WebDir = cliConfig.WebDir
+	}
+	c.WebDir, err = mkDir(c.WebDir, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up directory: %v", err)
+	}
+
+	return nil
+}
+
+func HandleConfig() (*Config, error) {
+	config := newConfig()
+	cliConfig := newConfig()
+
+	if err := cliConfig.handleCliArgs(); err != nil {
+		return nil, fmt.Errorf("error handling cli arguments: %v", err)
+	}
+
+	err := config.handleFile(cliConfig.ConfigFile)
+	if err != nil {
+		return nil, fmt.Errorf("error reading configuration file: %v", err)
+	}
+
+	if err = config.setupConfig(cliConfig); err != nil {
+		return nil, fmt.Errorf("error setting up files: %v", err)
+	}
+
+	return config, nil
+}

cmd/backend/db.go

@@ -0,0 +1,167 @@
+package backend
+
+import (
+	"bufio"
+	"database/sql"
+	"fmt"
+	"log"
+	"math"
+	"math/rand/v2"
+	"os"
+	"strings"
+	"syscall"
+	"time"
+
+	"github.com/go-sql-driver/mysql"
+	"golang.org/x/term"
+)
+
+var TxMaxRetries = 5
+
+type (
+	DB struct{ *sql.DB }
+	Tx struct{ *sql.Tx }
+
+	Attribute struct {
+		Value   any
+		Table   string
+		AttName string
+		ID      int64
+	}
+)
+
+func getUsername() (string, error) {
+	user := os.Getenv("DB_USER")
+	if user == "" {
+		var err error
+		fmt.Printf("DB Benutzer: ")
+		user, err = bufio.NewReader(os.Stdin).ReadString('\n')
+		if err != nil {
+			return "", fmt.Errorf("error reading username: %v", err)
+		}
+	}
+	return strings.TrimSpace(user), nil
+}
+
+func getPassword() (string, error) {
+	pass := os.Getenv("DB_PASS")
+	if pass == "" {
+		fmt.Printf("DB Passwort: ")
+		bytePass, err := term.ReadPassword(int(syscall.Stdin))
+		if err != nil {
+			return "", fmt.Errorf("error reading password: %v", err)
+		}
+		fmt.Println()
+		pass = strings.TrimSpace(string(bytePass))
+	}
+	return pass, nil
+}
+
+func getCredentials() (string, string, error) {
+	user, err := getUsername()
+	if err != nil {
+		return "", "", fmt.Errorf("error getting username: %v", err)
+	}
+
+	pass, err := getPassword()
+	if err != nil {
+		return "", "", fmt.Errorf("error getting password: %v", err)
+	}
+
+	return user, pass, nil
+}
+
+func wait(iteration int) {
+	waitTime := time.Duration(math.Pow(2, float64(iteration))) * 100 * time.Millisecond
+	jitter := time.Duration(rand.IntN(int(waitTime)/2)) * time.Millisecond
+	time.Sleep(waitTime + jitter)
+}
+
+func OpenDB(dbName string) (*DB, error) {
+	var err error
+	db := DB{DB: new(sql.DB)}
+
+	cfg := mysql.NewConfig()
+	cfg.DBName = dbName
+	cfg.User, cfg.Passwd, err = getCredentials()
+	if err != nil {
+		return nil, fmt.Errorf("error reading user credentials for DB: %v", err)
+	}
+
+	db.DB, err = sql.Open("mysql", cfg.FormatDSN())
+	if err != nil {
+		return nil, fmt.Errorf("error opening DB: %v", err)
+	}
+	if err = db.Ping(); err != nil {
+		return nil, fmt.Errorf("error pinging DB: %v", err)
+	}
+
+	return &db, nil
+}
+
+func (db *DB) UpdateAttributes(a ...*Attribute) error {
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx, err := db.Begin()
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			for _, attribute := range a {
+				query := fmt.Sprintf(`
+                    UPDATE %s
+                    SET %s = ?
+                    WHERE id = ?
+                    `, attribute.Table, attribute.AttName)
+				if _, err := tx.Exec(query, attribute.Value, attribute.ID); err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return fmt.Errorf("error updating %v in DB: %v", attribute.AttName, err)
+				}
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction: %v", err)
+			}
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) CountEntries(table string) (int64, error) {
+	var count int64
+
+	query := fmt.Sprintf("SELECT COUNT(*) FROM %s", table)
+	row := db.QueryRow(query)
+	if err := row.Scan(&count); err != nil {
+		return 0, fmt.Errorf("error counting rows in user DB: %v", err)
+	}
+
+	return count, nil
+}
+
+func (tx *Tx) UpdateAttributes(a ...*Attribute) error {
+	for _, attribute := range a {
+		query := fmt.Sprintf(`
+            UPDATE %s
+            SET %s = ?
+            WHERE id = ?
+            `, attribute.Table, attribute.AttName)
+		if _, err := tx.Exec(query, attribute.Value, attribute.ID); err != nil {
+			if rollbackErr := tx.Rollback(); rollbackErr != nil {
+				log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+			}
+			return fmt.Errorf("error updating %v in DB: %v", attribute.AttName, err)
+		}
+	}
+
+	return nil
+}

cmd/backend/firebase.go

@@ -0,0 +1,42 @@
+package backend
+
+import (
+	"context"
+
+	firebase "firebase.google.com/go/v4"
+	"firebase.google.com/go/v4/auth"
+	"google.golang.org/api/option"
+)
+
+type Client struct{ *auth.Client }
+
+func NewClient(c *Config) (*Client, error) {
+	var err error
+
+	client := new(Client)
+	ctx := context.Background()
+	opt := option.WithCredentialsFile(c.FirebaseKey)
+
+	app, err := firebase.NewApp(ctx, nil, opt)
+	if err != nil {
+		return nil, err
+	}
+
+	client.Client, err = app.Auth(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
+}
+
+func (c *Client) Verify(idToken string) (*auth.Token, error) {
+	ctx := context.Background()
+
+	token, err := c.VerifyIDTokenAndCheckRevoked(ctx, idToken)
+	if err != nil {
+		return nil, err
+	}
+
+	return token, nil
+}

cmd/backend/issues.go

@@ -0,0 +1,65 @@
+package backend
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+)
+
+func (db *DB) AddIssue() (int64, error) {
+	query := "INSERT INTO issues (published) VALUES (?)"
+	result, err := db.Exec(query, false)
+	if err != nil {
+		return 0, fmt.Errorf("error inserting issue into DB: %v", err)
+	}
+
+	id, err := result.LastInsertId()
+	if err != nil {
+		return 0, fmt.Errorf("error getting ID of added issue: %v", err)
+	}
+
+	return id, nil
+}
+
+func (db *DB) PublishLatestIssue() error {
+	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
+	updateQuery := "UPDATE issues SET published = true WHERE published = false"
+	insertQuery := "INSERT INTO issues (published) VALUES (?)"
+
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx, err := db.BeginTx(context.Background(), txOptions)
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if _, err := tx.Exec(updateQuery); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error publishing issue: %v", err)
+			}
+
+			if _, err := tx.Exec(insertQuery, false); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error inserting new issue into DB: %v", err)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction when publishing issue: %v", err)
+			}
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}

cmd/backend/markdown.go

@@ -1,4 +1,4 @@
-package data
+package backend
 
 import (
 	"bytes"

cmd/backend/rss.go

@@ -0,0 +1,103 @@
+package backend
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"time"
+
+	"git.streifling.com/jason/rss"
+)
+
+func GenerateRSS(c *Config, db *DB) (*string, error) {
+	channel := &rss.Channel{
+		Title:       c.Title,
+		Link:        c.Link,
+		Description: c.Description,
+		Items:       make([]*rss.Item, 0),
+	}
+
+	articles, err := db.GetCertainArticles("published", true)
+	if err != nil {
+		return nil, fmt.Errorf("error getting published articles for RSS feed: %v", err)
+	}
+
+	for _, article := range articles {
+		tags, err := db.GetArticleTags(article.ID)
+		if err != nil {
+			return nil, fmt.Errorf("error getting tags for articles for RSS feed: %v", err)
+		}
+		tagNames := make([]string, 0)
+		for _, tag := range tags {
+			tagNames = append(tagNames, tag.Name)
+		}
+
+		if article.IsInIssue || article.AutoGenerated {
+			tagNames = append(tagNames, fmt.Sprint("Orient Express ", article.IssueID))
+		}
+		if article.AutoGenerated {
+			tagNames = append(tagNames, "autogenerated")
+		}
+
+		user, err := db.GetUser(article.AuthorID)
+		if err != nil {
+			return nil, fmt.Errorf("error getting user user info for RSS feed: %v", err)
+		}
+
+		articleTitle, err := ConvertToPlain(article.Title)
+		if err != nil {
+			return nil, fmt.Errorf("error converting title to plain text for RSS feed: %v", err)
+		}
+
+		articleDescription, err := ConvertToPlain(article.Description)
+		if err != nil {
+			return nil, fmt.Errorf("error converting description to plain text for RSS feed: %v", err)
+		}
+
+		item := &rss.Item{
+			Author:      fmt.Sprint(user.FirstName, " ", user.LastName),
+			Categories:  tagNames,
+			Description: articleDescription,
+			Guid:        string(article.ID),
+			Link:        article.Link,
+			PubDate:     article.Created.Format(time.RFC1123Z),
+			Title:       articleTitle,
+		}
+
+		if article.AutoGenerated {
+			item.Enclosure = &rss.Enclosure{
+				Url:    article.EncURL,
+				Lenght: article.EncLength,
+				Type:   article.EncType,
+			}
+		}
+
+		channel.Items = append(channel.Items, item)
+	}
+
+	feed := rss.NewFeed()
+	feed.Channels = append(feed.Channels, channel)
+	rss, err := feed.ToXML("UTF-8")
+	if err != nil {
+		return nil, fmt.Errorf("error converting RSS feed to XML: %v", err)
+	}
+
+	return &rss, nil
+}
+
+func SaveRSS(filename string, feed *string) error {
+	file, err := os.Create(filename)
+	if err != nil {
+		return fmt.Errorf("error creating file for RSS feed: %v", err)
+	}
+	defer file.Close()
+	if err = file.Chmod(0644); err != nil {
+		return fmt.Errorf("error setting permissions for RSS file: %v", err)
+	}
+
+	if _, err = io.WriteString(file, *feed); err != nil {
+		return fmt.Errorf("error writing to RSS file: %v", err)
+	}
+
+	return nil
+}

cmd/backend/sessions.go

@@ -1,4 +1,4 @@
-package data
+package backend
 
 import (
 	"crypto/rand"
@@ -10,9 +10,7 @@ import (
 	"github.com/gorilla/sessions"
 )
 
-type CookieStore struct {
-	sessions.CookieStore
-}
+type CookieStore struct{ sessions.CookieStore }
 
 func NewKey() ([]byte, error) {
 	key := make([]byte, 32)

cmd/backend/tags.go

@@ -0,0 +1,35 @@
+package backend
+
+import "fmt"
+
+type Tag struct {
+	Name string
+	ID   int64
+}
+
+func (db *DB) AddTag(tagName string) error {
+	query := "INSERT INTO tags (name) VALUES (?)"
+	if _, err := db.Exec(query, tagName); err != nil {
+		return fmt.Errorf("error inserting tag into DB: %v", err)
+	}
+	return nil
+}
+
+func (db *DB) GetTagList() ([]*Tag, error) {
+	query := "SELECT id, name FROM tags"
+	rows, err := db.Query(query)
+	if err != nil {
+		return nil, fmt.Errorf("error querying tags: %v", err)
+	}
+
+	tagList := make([]*Tag, 0)
+	for rows.Next() {
+		tag := new(Tag)
+		if err = rows.Scan(&tag.ID, &tag.Name); err != nil {
+			return nil, fmt.Errorf("error scanning tag row: %v", err)
+		}
+		tagList = append(tagList, tag)
+	}
+
+	return tagList, nil
+}

cmd/backend/users.go

@@ -0,0 +1,380 @@
+package backend
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log"
+
+	"golang.org/x/crypto/bcrypt"
+)
+
+const (
+	Admin = iota
+	Publisher
+	Editor
+	Author
+	NonExistent
+)
+
+type User struct {
+	UserName  string
+	FirstName string
+	LastName  string
+	ID        int64
+	Role      int
+}
+
+func (db *DB) AddUser(u *User, pass string) (int64, error) {
+	hashedPass, err := bcrypt.GenerateFromPassword([]byte(pass), bcrypt.DefaultCost)
+	if err != nil {
+		return 0, fmt.Errorf("error creating password hash: %v", err)
+	}
+
+	query := `
+    INSERT INTO users (username, password, first_name, last_name, role)
+    VALUES (?, ?, ?, ?, ?)
+    `
+	result, err := db.Exec(query, u.UserName, string(hashedPass), u.FirstName, u.LastName, u.Role)
+	if err != nil {
+		return 0, fmt.Errorf("error inserting new user %v into DB: %v", u.UserName, err)
+	}
+	id, err := result.LastInsertId()
+	if err != nil {
+		return 0, fmt.Errorf("error inserting user into DB: %v", err)
+	}
+
+	return id, nil
+}
+
+func (db *DB) GetID(userName string) (int64, bool) {
+	var id int64
+
+	query := `
+    SELECT id
+    FROM users
+    WHERE username = ?
+    `
+	row := db.QueryRow(query, userName)
+	if err := row.Scan(&id); err != nil {
+		return 0, false
+	}
+
+	return id, true
+}
+
+func (db *DB) CheckPassword(id int64, pass string) error {
+	var queriedPass string
+
+	query := `
+    SELECT password
+    FROM users
+    WHERE id = ?
+    `
+	row := db.QueryRow(query, id)
+	if err := row.Scan(&queriedPass); err != nil {
+		return fmt.Errorf("error reading password from DB: %v", err)
+	}
+
+	if err := bcrypt.CompareHashAndPassword([]byte(queriedPass), []byte(pass)); err != nil {
+		return fmt.Errorf("incorrect password: %v", err)
+	}
+
+	return nil
+}
+
+func (tx *Tx) ChangePassword(id int64, oldPass, newPass string) error {
+	var queriedPass string
+	getQuery := `
+    SELECT password
+    FROM users
+    WHERE id = ?
+    `
+	row := tx.QueryRow(getQuery, id)
+	if err := row.Scan(&queriedPass); err != nil {
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+		}
+		return fmt.Errorf("error reading password from DB: %v", err)
+	}
+
+	if err := bcrypt.CompareHashAndPassword([]byte(queriedPass), []byte(oldPass)); err != nil {
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+		}
+		return fmt.Errorf("incorrect password: %v", err)
+	}
+
+	newHashedPass, err := bcrypt.GenerateFromPassword([]byte(newPass), bcrypt.DefaultCost)
+	if err != nil {
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+		}
+		return fmt.Errorf("error creating password hash: %v", err)
+	}
+
+	setQuery := `
+    UPDATE users
+    SET password = ?
+    WHERE id = ?
+    `
+	if _, err = tx.Exec(setQuery, string(newHashedPass), id); err != nil {
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+		}
+		return fmt.Errorf("error updating password in DB: %v", err)
+	}
+
+	return nil
+}
+
+// TODO: No need for ID field in general
+func (db *DB) GetUser(id int64) (*User, error) {
+	user := new(User)
+	query := `
+    SELECT id, username, first_name, last_name, role
+    FROM users
+    WHERE id = ?
+    `
+
+	row := db.QueryRow(query, id)
+	if err := row.Scan(&user.ID, &user.UserName, &user.FirstName,
+		&user.LastName, &user.Role); err != nil {
+		return nil, fmt.Errorf("error reading user information: %v", err)
+	}
+
+	return user, nil
+}
+
+func (db *DB) UpdateOwnAttributes(id int64, user, first, last, oldPass, newPass, newPass2 string) error {
+	passwordEmpty := true
+	if len(newPass) > 0 || len(newPass2) > 0 {
+		if newPass != newPass2 {
+			return fmt.Errorf("error: passwords do not match")
+		}
+		passwordEmpty = false
+	}
+
+	tx := new(Tx)
+	var err error
+
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx.Tx, err = db.Begin()
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if !passwordEmpty {
+				if err = tx.ChangePassword(id, oldPass, newPass); err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return fmt.Errorf("error changing password: %v", err)
+				}
+			}
+
+			if err = tx.UpdateAttributes(
+				&Attribute{Table: "users", ID: id, AttName: "username", Value: user},
+				&Attribute{Table: "users", ID: id, AttName: "first_name", Value: first},
+				&Attribute{Table: "users", ID: id, AttName: "last_name", Value: last},
+			); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error updating attributes in DB: %v", err)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction: %v", err)
+			}
+
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) AddFirstUser(u *User, pass string) (int64, error) {
+	var numUsers int64
+	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
+	selectQuery := "SELECT COUNT(*) FROM users"
+	insertQuery := `
+    INSERT INTO users (username, password, first_name, last_name, role)
+    VALUES (?, ?, ?, ?, ?)
+    `
+
+	for i := 0; i < TxMaxRetries; i++ {
+		id, err := func() (int64, error) {
+			tx, err := db.BeginTx(context.Background(), txOptions)
+			if err != nil {
+				return 0, fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if err := tx.QueryRow(selectQuery).Scan(&numUsers); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error getting ID of %v: %v", u.UserName, err)
+			}
+			if numUsers != 0 {
+				if err = tx.Commit(); err != nil {
+					return 0, fmt.Errorf("error committing transaction: %v", err)
+				}
+				return 2, nil
+			}
+
+			hashedPass, err := bcrypt.GenerateFromPassword([]byte(pass), bcrypt.DefaultCost)
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error creating password hash: %v", err)
+			}
+
+			result, err := tx.Exec(insertQuery, u.UserName, string(hashedPass), u.FirstName, u.LastName, u.Role)
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error inserting new user %v into DB: %v", u.UserName, err)
+			}
+
+			id, err := result.LastInsertId()
+			if err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return 0, fmt.Errorf("error inserting user into DB: %v", err)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return 0, fmt.Errorf("error committing transaction: %v", err)
+			}
+			return id, nil
+		}()
+		if err == nil {
+			return id, nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+	return 0, fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) GetAllUsers() (map[int64]*User, error) {
+	query := "SELECT id, username, first_name, last_name, role FROM users"
+
+	rows, err := db.Query(query)
+	if err != nil {
+		return nil, fmt.Errorf("error getting all users from DB: %v", err)
+	}
+
+	users := make(map[int64]*User, 0)
+	for rows.Next() {
+		user := new(User)
+		if err = rows.Scan(&user.ID, &user.UserName, &user.FirstName,
+			&user.LastName, &user.Role); err != nil {
+			return nil, fmt.Errorf("error getting user info: %v", err)
+		}
+		users[user.ID] = user
+	}
+
+	return users, nil
+}
+
+func (tx *Tx) SetPassword(id int64, newPass string) error {
+	hashedPass, err := bcrypt.GenerateFromPassword([]byte(newPass), bcrypt.DefaultCost)
+	if err != nil {
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+		}
+		return fmt.Errorf("error creating password hash: %v", err)
+	}
+
+	setQuery := "UPDATE users SET password = ? WHERE id = ?"
+	if _, err = tx.Exec(setQuery, string(hashedPass), id); err != nil {
+		if rollbackErr := tx.Rollback(); rollbackErr != nil {
+			log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+		}
+		return fmt.Errorf("error updating password in DB: %v", err)
+	}
+
+	return nil
+}
+
+func (db *DB) UpdateUserAttributes(id int64, user, first, last, newPass, newPass2 string, role int) error {
+	passwordEmpty := true
+	if len(newPass) > 0 || len(newPass2) > 0 {
+		if newPass != newPass2 {
+			return fmt.Errorf("error: passwords do not match")
+		}
+		passwordEmpty = false
+	}
+
+	tx := new(Tx)
+	var err error
+
+	for i := 0; i < TxMaxRetries; i++ {
+		err := func() error {
+			tx.Tx, err = db.Begin()
+			if err != nil {
+				return fmt.Errorf("error starting transaction: %v", err)
+			}
+
+			if !passwordEmpty {
+				if err = tx.SetPassword(id, newPass); err != nil {
+					if rollbackErr := tx.Rollback(); rollbackErr != nil {
+						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+					}
+					return fmt.Errorf("error changing password: %v", err)
+				}
+			}
+
+			if err = tx.UpdateAttributes(
+				&Attribute{Table: "users", ID: id, AttName: "username", Value: user},
+				&Attribute{Table: "users", ID: id, AttName: "first_name", Value: first},
+				&Attribute{Table: "users", ID: id, AttName: "last_name", Value: last},
+				&Attribute{Table: "users", ID: id, AttName: "role", Value: role},
+			); err != nil {
+				if rollbackErr := tx.Rollback(); rollbackErr != nil {
+					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
+				}
+				return fmt.Errorf("error updating attributes in DB: %v", err)
+			}
+
+			if err = tx.Commit(); err != nil {
+				return fmt.Errorf("error committing transaction: %v", err)
+			}
+
+			return nil
+		}()
+		if err == nil {
+			return nil
+		}
+
+		log.Println(err)
+		wait(i)
+	}
+
+	return fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
+}
+
+func (db *DB) DeleteUser(id int64) error {
+	query := "DELETE FROM users WHERE id = ?"
+
+	_, err := db.Exec(query, id)
+	if err != nil {
+		return fmt.Errorf("error deleting user %v from DB: %v", id, err)
+	}
+
+	return nil
+}

cmd/calls/articles.go

@@ -0,0 +1,55 @@
+package calls
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strconv"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func ServeArticle(c *b.Config, db *b.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !tokenIsVerified(w, r, c) {
+			return
+		}
+
+		idString := r.PathValue("id")
+		id, err := strconv.ParseInt(idString, 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article, err := db.GetArticle(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if !article.Published {
+			return
+		}
+
+		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		contentBytes, err := os.ReadFile(articleAbsName)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		content, err := b.ConvertToHTML(string(contentBytes))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		fmt.Fprint(w, content)
+	}
+}

cmd/calls/images.go

@@ -0,0 +1,26 @@
+package calls
+
+import (
+	"log"
+	"net/http"
+	"path/filepath"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func ServeImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !tokenIsVerified(w, r, c) {
+			return
+		}
+
+		absFilepath, err := filepath.Abs(c.PicsDir)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		http.ServeFile(w, r, absFilepath+"/"+r.PathValue("pic"))
+	}
+}

cmd/calls/pdf.go

@@ -0,0 +1,48 @@
+package calls
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func ServePDFList(c *b.Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !tokenIsVerified(w, r, c) {
+			return
+		}
+
+		files, err := os.ReadDir(c.PDFDir)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		fileNames := make([]string, 0)
+		for _, file := range files {
+			fileNames = append(fileNames, file.Name())
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		if err = json.NewEncoder(w).Encode(fileNames); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}
+
+func ServePDF(c *b.Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !tokenIsVerified(w, r, c) {
+			return
+		}
+
+		http.ServeFile(w, r, fmt.Sprint(c.PDFDir, "/", r.PathValue("id")))
+	}
+}

cmd/calls/rss.go

@@ -0,0 +1,17 @@
+package calls
+
+import (
+	"net/http"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func ServeRSS(c *b.Config) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if !tokenIsVerified(w, r, c) {
+			return
+		}
+
+		http.ServeFile(w, r, c.RSSFile)
+	}
+}

cmd/calls/verification.go

@@ -0,0 +1,34 @@
+package calls
+
+import (
+	"log"
+	"net/http"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+// tokenIsVerified verifies that a request is authorized. It returns a bool.
+func tokenIsVerified(w http.ResponseWriter, r *http.Request, c *b.Config) bool {
+	idToken := r.Header.Get("Authorization")
+	if idToken == "" {
+		log.Println("Authorization header missing")
+		http.Error(w, "Authorization header missing", http.StatusUnauthorized)
+		return false
+	}
+
+	client, err := b.NewClient(c)
+	if err != nil {
+		log.Println(err)
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return false
+	}
+
+	_, err = client.Verify(idToken)
+	if err != nil {
+		log.Println(err)
+		http.Error(w, err.Error(), http.StatusUnauthorized)
+		return false
+	}
+
+	return true
+}

cmd/data/articles.go

@@ -1,198 +0,0 @@
-package data
-
-import (
-	"encoding/gob"
-	"fmt"
-	"os"
-	"sync"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-type Article struct {
-	Title    string
-	Author   string
-	Created  time.Time
-	Desc     string
-	Content  string
-	Tags     []string
-	UUID     uuid.UUID
-	AuthorID int64
-}
-
-// TODO: setCh
-type ArticleList struct {
-	addCh    chan *Article
-	delCh    chan uuid.UUID
-	getCh    chan []Article
-	retCh    chan *Article
-	articles []*Article
-	wg       sync.WaitGroup
-}
-
-// TODO: setCh
-type TagList struct {
-	addCh chan string
-	getCh chan []string
-	tags  []string
-	wg    sync.WaitGroup
-}
-
-func initArticleList() *ArticleList {
-	return &ArticleList{
-		addCh: make(chan *Article),
-		delCh: make(chan uuid.UUID),
-		getCh: make(chan []Article),
-		retCh: make(chan *Article),
-	}
-}
-
-func initTagList() *TagList {
-	return &TagList{
-		addCh: make(chan string),
-		getCh: make(chan []string),
-	}
-}
-
-func (al *ArticleList) start() {
-	al.wg.Done()
-	for {
-		select {
-		case article := <-al.addCh:
-			al.articles = append(al.articles, article)
-		case uuid := <-al.delCh:
-			for i, article := range al.articles {
-				if article.UUID == uuid {
-					al.articles = append(al.articles[:i], al.articles[i+1:]...)
-					al.retCh <- article
-				}
-			}
-		case al.getCh <- func() []Article {
-			var list []Article
-			for _, article := range al.articles {
-				list = append(list, *article)
-			}
-			return list
-		}():
-		}
-	}
-}
-
-func (tl *TagList) start() {
-	tl.wg.Done()
-	for {
-		select {
-		case tag := <-tl.addCh:
-			tl.tags = append(tl.tags, tag)
-		case tl.getCh <- tl.tags:
-		}
-	}
-}
-
-func NewArticleList() *ArticleList {
-	list := initArticleList()
-	list.articles = make([]*Article, 0)
-
-	list.wg.Add(1)
-	go list.start()
-	list.wg.Wait()
-
-	return list
-}
-
-func (al *ArticleList) Add(a *Article) {
-	al.addCh <- a
-}
-
-func (al *ArticleList) Release(uuid uuid.UUID) (*Article, bool) {
-	al.delCh <- uuid
-	article := <-al.retCh
-
-	if article == nil {
-		return nil, false
-	}
-	return article, true
-}
-
-func (al *ArticleList) Get() []Article {
-	return <-al.getCh
-}
-
-func (al *ArticleList) Save(filename string) error {
-	file, err := os.Create(filename)
-	if err != nil {
-		return fmt.Errorf("error creating key file: %v", err)
-	}
-	defer file.Close()
-
-	articles := al.Get()
-	if err = gob.NewEncoder(file).Encode(articles); err != nil {
-		return fmt.Errorf("error ecoding key: %v", err)
-	}
-
-	return nil
-}
-
-func LoadArticleList(filename string) (*ArticleList, error) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return nil, fmt.Errorf("error opening key file: %v", err)
-	}
-
-	articleList := NewArticleList()
-	if err = gob.NewDecoder(file).Decode(&articleList.articles); err != nil {
-		return nil, fmt.Errorf("error decoding key: %v", err)
-	}
-
-	return articleList, nil
-}
-
-func NewTagList() *TagList {
-	list := initTagList()
-	list.tags = make([]string, 0)
-
-	list.wg.Add(1)
-	go list.start()
-	list.wg.Wait()
-
-	return list
-}
-
-func (tl *TagList) Add(tag string) {
-	tl.addCh <- tag
-}
-
-func (tl *TagList) Get() []string {
-	return <-tl.getCh
-}
-
-func (tl *TagList) Save(filename string) error {
-	file, err := os.Create(filename)
-	if err != nil {
-		return fmt.Errorf("error creating key file: %v", err)
-	}
-	defer file.Close()
-
-	tags := tl.Get()
-	if err = gob.NewEncoder(file).Encode(tags); err != nil {
-		return fmt.Errorf("error ecoding key: %v", err)
-	}
-
-	return nil
-}
-
-func LoadTagList(filename string) (*TagList, error) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return nil, fmt.Errorf("error opening key file: %v", err)
-	}
-	defer file.Close()
-
-	tagList := NewTagList()
-	if err = gob.NewDecoder(file).Decode(&tagList.tags); err != nil {
-		return nil, fmt.Errorf("error decoding key: %v", err)
-	}
-
-	return tagList, nil
-}

cmd/data/db.go

@@ -1,140 +0,0 @@
-package data
-
-import (
-	"database/sql"
-	"fmt"
-
-	"github.com/go-sql-driver/mysql"
-	"golang.org/x/crypto/bcrypt"
-)
-
-type DB struct {
-	*sql.DB
-}
-
-func OpenDB(dbName string) (*DB, error) {
-	var err error
-	db := DB{DB: &sql.DB{}}
-
-	cfg := mysql.NewConfig()
-	cfg.DBName = dbName
-	cfg.User, cfg.Passwd, err = getCredentials()
-	if err != nil {
-		return nil, fmt.Errorf("error reading user credentials for DB: %v", err)
-	}
-
-	db.DB, err = sql.Open("mysql", cfg.FormatDSN())
-	if err != nil {
-		return nil, fmt.Errorf("error opening DB: %v", err)
-	}
-	if err = db.Ping(); err != nil {
-		return nil, fmt.Errorf("error pinging DB: %v", err)
-	}
-
-	return &db, nil
-}
-
-func (db *DB) AddUser(user *User, pass string) error {
-	hashedPass, err := bcrypt.GenerateFromPassword([]byte(pass), bcrypt.DefaultCost)
-	if err != nil {
-		return fmt.Errorf("error creating password hash: %v", err)
-	}
-
-	query := `
-    INSERT INTO users
-        (username, password, first_name, last_name, role)
-    VALUES (?, ?, ?, ?, ?)
-    `
-	if _, err = db.Exec(query, user.UserName, string(hashedPass), user.FirstName, user.LastName, user.Role); err != nil {
-		return fmt.Errorf("error inserting user into DB: %v", err)
-	}
-
-	return nil
-}
-
-func (db *DB) GetID(userName string) (int64, error) {
-	var id int64
-
-	query := `
-    SELECT id
-    FROM users
-    WHERE username = ?
-    `
-	row := db.QueryRow(query, userName)
-	if err := row.Scan(&id); err != nil {
-		return 0, fmt.Errorf("user not in DB: %v", err)
-	}
-
-	return id, nil
-}
-
-func (db *DB) CheckPassword(id int64, pass string) error {
-	var queriedPass string
-
-	query := `
-    SELECT password
-    FROM users
-    WHERE id = ?
-    `
-	row := db.QueryRow(query, id)
-	if err := row.Scan(&queriedPass); err != nil {
-		return fmt.Errorf("error reading password from DB: %v", err)
-	}
-
-	if err := bcrypt.CompareHashAndPassword([]byte(queriedPass), []byte(pass)); err != nil {
-		return fmt.Errorf("incorrect password: %v", err)
-	}
-
-	return nil
-}
-
-func (db *DB) ChangePassword(id int64, oldPass, newPass string) error {
-	if err := db.CheckPassword(id, oldPass); err != nil {
-		return fmt.Errorf("error checking password: %v", err)
-	}
-
-	newHashedPass, err := bcrypt.GenerateFromPassword([]byte(newPass), bcrypt.DefaultCost)
-	if err != nil {
-		return fmt.Errorf("error creating password hash: %v", err)
-	}
-
-	query := `
-    UPDATE users
-    SET password = ?
-    WHERE id = ?
-    `
-	if _, err = db.Exec(query, string(newHashedPass), id); err != nil {
-		return fmt.Errorf("error updating password in DB: %v", err)
-	}
-
-	return nil
-}
-
-func (db *DB) CountEntries() (int64, error) {
-	var count int64
-
-	query := `SELECT COUNT(*) FROM users`
-	row := db.QueryRow(query)
-	if err := row.Scan(&count); err != nil {
-		return 0, fmt.Errorf("error counting rows in user DB: %v", err)
-	}
-
-	return count, nil
-}
-
-// TODO: No need for ID field in general
-func (db *DB) GetUser(id int64) (*User, error) {
-	user := new(User)
-	query := `
-    SELECT id, username, first_name, last_name, role
-    FROM users
-    WHERE id = ?
-    `
-
-	row := db.QueryRow(query, id)
-	if err := row.Scan(&user.ID, &user.UserName, &user.FirstName, &user.LastName, &user.Role); err != nil {
-		return nil, fmt.Errorf("error reading user information: %v", err)
-	}
-
-	return user, nil
-}

cmd/data/helpers.go

@@ -1,52 +0,0 @@
-package data
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"strings"
-	"syscall"
-
-	"golang.org/x/term"
-)
-
-func getUsername() (string, error) {
-	user := os.Getenv("DB_USER")
-	if user == "" {
-		var err error
-		fmt.Printf("DB Benutzer: ")
-		user, err = bufio.NewReader(os.Stdin).ReadString('\n')
-		if err != nil {
-			return "", fmt.Errorf("error reading username: %v", err)
-		}
-	}
-	return strings.TrimSpace(user), nil
-}
-
-func getPassword() (string, error) {
-	pass := os.Getenv("DB_PASS")
-	if pass == "" {
-		fmt.Printf("DB Passwort: ")
-		bytePass, err := term.ReadPassword(int(syscall.Stdin))
-		if err != nil {
-			return "", fmt.Errorf("error reading password: %v", err)
-		}
-		fmt.Println()
-		pass = strings.TrimSpace(string(bytePass))
-	}
-	return pass, nil
-}
-
-func getCredentials() (string, string, error) {
-	user, err := getUsername()
-	if err != nil {
-		return "", "", fmt.Errorf("error getting username: %v", err)
-	}
-
-	pass, err := getPassword()
-	if err != nil {
-		return "", "", fmt.Errorf("error getting password: %v", err)
-	}
-
-	return user, pass, nil
-}

cmd/data/rss.go

@@ -1,104 +0,0 @@
-package data
-
-import (
-	"encoding/gob"
-	"fmt"
-	"os"
-	"sync"
-
-	"git.streifling.com/jason/rss"
-)
-
-type Channel struct {
-	addCh   chan *rss.Item
-	setCh   chan rss.Channel
-	getCh   chan rss.Channel
-	channel rss.Channel
-	wg      sync.WaitGroup
-}
-
-func initChannel() *Channel {
-	return &Channel{
-		addCh: make(chan *rss.Item),
-		setCh: make(chan rss.Channel),
-		getCh: make(chan rss.Channel),
-		channel: rss.Channel{
-			Items: make([]*rss.Item, 0),
-		},
-	}
-}
-
-func (c *Channel) start() {
-	c.wg.Done()
-	for {
-		select {
-		case item := <-c.addCh:
-			c.channel.Items = append(c.channel.Items, item)
-		case c.getCh <- c.channel:
-		case c.channel = <-c.setCh:
-		}
-	}
-}
-
-func NewChannel(title, link, desc string) *Channel {
-	channel := initChannel()
-	channel.channel = rss.Channel{
-		Title:       title,
-		Link:        link,
-		Description: desc,
-	}
-
-	channel.wg.Add(1)
-	go channel.start()
-	channel.wg.Wait()
-
-	return channel
-}
-
-func (c *Channel) Get() rss.Channel {
-	return <-c.getCh
-}
-
-func (f *Channel) Set(channel rss.Channel) {
-	f.setCh <- channel
-}
-
-func LoadChannel(filename string) (*Channel, error) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return nil, fmt.Errorf("error opening file %v: %v", filename, err)
-	}
-	defer file.Close()
-
-	channel := initChannel()
-	channel.wg.Add(1)
-	go channel.start()
-	channel.wg.Wait()
-
-	tmpChannel := new(rss.Channel)
-	if err = gob.NewDecoder(file).Decode(tmpChannel); err != nil {
-		return nil, fmt.Errorf("error decoding channel from file %v: %v", filename, err)
-	}
-
-	channel.Set(*tmpChannel)
-	return channel, nil
-}
-
-func (c *Channel) Save(filename string) error {
-	file, err := os.Create(filename)
-	if err != nil {
-		return fmt.Errorf("error creating file %v: %v", filename, err)
-	}
-	defer file.Close()
-
-	channel := c.Get()
-	if err = gob.NewEncoder(file).Encode(channel); err != nil {
-		return fmt.Errorf("error encoding file %v: %v", filename, err)
-	}
-
-	return nil
-}
-
-func (c *Channel) Add(i *rss.Item) {
-	c.addCh <- i
-}

cmd/data/user.go

@@ -1,16 +0,0 @@
-package data
-
-const (
-	Admin = iota
-	Editor
-	Writer
-)
-
-type User struct {
-	UserName         string
-	FirstName        string
-	LastName         string
-	RejectedArticles []*Article
-	ID               int64
-	Role             int
-}

cmd/frontend/articles.go

@@ -0,0 +1,855 @@
+package frontend
+
+import (
+	"encoding/json"
+	"fmt"
+	"html/template"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+const (
+	EditMode = iota
+	PreviewMode
+)
+
+type EditorHTMLData struct {
+	Selected     map[int64]bool
+	Content      string
+	Action       string
+	ActionTitle  string
+	ActionButton string
+	HTMLContent  template.HTML
+	Article      *b.Article
+	Tags         []*b.Tag
+}
+
+func copyFile(src, dst string) error {
+	srcFile, err := os.Open(src)
+	if err != nil {
+		return fmt.Errorf("error opening source file: %v", err)
+	}
+	defer srcFile.Close()
+
+	dstFile, err := os.Create(dst)
+	if err != nil {
+		return fmt.Errorf("error opening destination file: %v", err)
+	}
+	defer dstFile.Close()
+
+	_, err = io.Copy(dstFile, srcFile)
+	if err != nil {
+		return fmt.Errorf("error copying file: %v", err)
+	}
+
+	return dstFile.Sync()
+}
+
+func WriteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		data := new(EditorHTMLData)
+
+		if session.Values["article"] == nil {
+			data = &EditorHTMLData{Article: new(b.Article)}
+		} else {
+			data = session.Values["article"].(*EditorHTMLData)
+		}
+		// data.Mode = EditMode
+
+		data.Tags, err = db.GetTagList()
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data.Action = "submit"
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/editor.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func SubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		session.Values["article"] = nil
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article := &b.Article{
+			Title:         r.PostFormValue("article-title"),
+			Description:   r.PostFormValue("article-description"),
+			Published:     false,
+			Rejected:      false,
+			AuthorID:      session.Values["id"].(int64),
+			IsInIssue:     r.PostFormValue("issue") == "on",
+			AutoGenerated: false,
+		}
+
+		article.ID, err = db.AddArticle(article)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		if err = os.WriteFile(articleAbsName, []byte(r.PostFormValue("article-content")), 0644); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article.Link = fmt.Sprint(c.Domain, "/article/serve/", article.ID)
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "link", Value: article.Link}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		r.ParseForm()
+		tags := make([]int64, 0)
+		for _, tag := range r.Form["tags"] {
+			tagID, err := strconv.ParseInt(tag, 10, 64)
+			if err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+			tags = append(tags, tagID)
+		}
+		if err = db.WriteArticleTags(article.ID, tags); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}
+
+func ResubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		title := r.PostFormValue("article-title")
+		description := r.PostFormValue("article-description")
+		content := r.PostFormValue("article-content")
+
+		link := fmt.Sprint(c.ArticleDir, "/", id, ".md")
+		if err = os.WriteFile(link, []byte(content), 0644); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.UpdateAttributes(
+			&b.Attribute{Table: "articles", ID: id, AttName: "title", Value: title},
+			&b.Attribute{Table: "articles", ID: id, AttName: "description", Value: description},
+			&b.Attribute{Table: "articles", ID: id, AttName: "rejected", Value: false},
+			&b.Attribute{Table: "articles", ID: id, AttName: "is_in_issue", Value: r.PostFormValue("issue") == "on"},
+		); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		r.ParseForm()
+		tags := make([]int64, 0)
+		for _, tag := range r.Form["tags"] {
+			tagID, err := strconv.ParseInt(tag, 10, 64)
+			if err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+			tags = append(tags, tagID)
+		}
+		if err = db.UpdateArticleTags(id, tags); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}
+
+func ShowUnpublishedUnrejectedAndPublishedRejectedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		rejectedArticles, err := db.GetCertainArticles("rejected", true)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		articles := make([]*b.Article, 0)
+		for _, article := range rejectedArticles {
+			if article.Published {
+				articles = append(articles, article)
+			}
+		}
+
+		unpublishedArticles, err := db.GetCertainArticles("published", false)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		for _, article := range unpublishedArticles {
+			if !article.Rejected {
+				articles = append(articles, article)
+			}
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/unpublished-articles.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", articles)
+	}
+}
+
+func ShowRejectedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		data := new(struct {
+			MyIDs            map[int64]bool
+			RejectedArticles []*b.Article
+		})
+
+		data.RejectedArticles, err = db.GetCertainArticles("rejected", true)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data.MyIDs = make(map[int64]bool)
+		for _, article := range data.RejectedArticles {
+			if article.AuthorID == session.Values["id"].(int64) {
+				data.MyIDs[article.ID] = true
+			}
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/rejected-articles.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func ReviewRejectedArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data := new(EditorHTMLData)
+		data.Article, err = db.GetArticle(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		articleAbsName := fmt.Sprint(c.ArticleDir, "/", data.Article.ID, ".md")
+		content, err := os.ReadFile(articleAbsName)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Content = string(content)
+
+		data.Tags, err = db.GetTagList()
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		selectedTags, err := db.GetArticleTags(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Selected = make(map[int64]bool)
+		for _, tag := range selectedTags {
+			data.Selected[tag.ID] = true
+		}
+
+		data.Action = fmt.Sprint("resubmit/", data.Article.ID)
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/editor.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func PublishArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		article, err := db.GetArticle(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.AddArticleToCurrentIssue(article.ID); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.UpdateAttributes(
+			&b.Attribute{Table: "articles", ID: id, AttName: "published", Value: true},
+			&b.Attribute{Table: "articles", ID: id, AttName: "rejected", Value: false},
+			&b.Attribute{Table: "articles", ID: id, AttName: "created", Value: time.Now().Format("2006-01-02 15:04:05")},
+		); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if article.EditedID != 0 {
+			oldArticle, err := db.GetArticle(article.EditedID)
+			if err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			if err = db.DeleteArticle(oldArticle.ID); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			if err = os.Remove(fmt.Sprint(c.ArticleDir, "/", oldArticle.ID, ".md")); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			if err = db.UpdateAttributes(
+				&b.Attribute{Table: "articles", ID: id, AttName: "link", Value: fmt.Sprint(c.Domain, "/article/serve/", article.ID)},
+				&b.Attribute{Table: "articles", ID: id, AttName: "edited_id", Value: 0},
+			); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		}
+
+		feed, err := b.GenerateRSS(c, db)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if err = b.SaveRSS(c.RSSFile, feed); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}
+
+func RejectArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: id, AttName: "rejected", Value: true}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}
+
+func ShowCurrentArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		articles, err := db.GetCurrentIssueArticles()
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/current-articles.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", articles)
+	}
+}
+
+func UploadArticleImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		file, header, err := r.FormFile("article-image")
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+		defer file.Close()
+
+		nameStrings := strings.Split(header.Filename, ".")
+		extension := "." + nameStrings[len(nameStrings)-1]
+		filename := fmt.Sprint(uuid.New(), extension)
+		absFilepath, err := filepath.Abs(fmt.Sprint(c.PicsDir, "/", filename))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		img, err := os.Create(absFilepath)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer img.Close()
+
+		if _, err = io.Copy(img, file); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		url := fmt.Sprint(c.Domain, "/image/serve/", filename)
+		w.Header().Set("Content-Type", "application/json")
+		json.NewEncoder(w).Encode(url)
+	}
+}
+
+func ShowPublishedArticles(c *b.Config, db *b.DB, s *b.CookieStore, action string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		data := new(struct {
+			Action   string
+			Articles []*b.Article
+		})
+		data.Action = action
+
+		publishedArticles, err := db.GetCertainArticles("published", true)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		for _, article := range publishedArticles {
+			if !article.AutoGenerated {
+				data.Articles = append(data.Articles, article)
+			}
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/published-articles.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, button string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article, err := db.GetArticle(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data := &EditorHTMLData{
+			Article: &b.Article{
+				ID:        id,
+				IsInIssue: article.IsInIssue,
+			},
+			Action:       action,
+			ActionTitle:  title,
+			ActionButton: button,
+		}
+
+		data.Article.Title, err = b.ConvertToPlain(article.Title)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data.Article.Description, err = b.ConvertToPlain(article.Description)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		content, err := os.ReadFile(articleAbsName)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Content, err = b.ConvertToHTML(string(content))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.HTMLContent = template.HTML(data.Content)
+
+		data.Tags, err = db.GetArticleTags(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/review-article.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func DeleteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.DeleteArticle(id); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = os.Remove(fmt.Sprint(c.ArticleDir, "/", id, ".md")); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		feed, err := b.GenerateRSS(c, db)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if err = b.SaveRSS(c.RSSFile, feed); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}
+
+func AllowEditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		oldID, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		fmt.Println(oldID)
+
+		oldArticle, err := db.GetArticle(oldID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		newArticle := oldArticle
+		newArticle.Published = false
+		newArticle.Rejected = true
+		newArticle.EditedID = oldArticle.ID
+
+		newID, err := db.AddArticle(newArticle)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: oldID, AttName: "edited_id", Value: newID}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = copyFile(fmt.Sprint(c.ArticleDir, "/", oldID, ".md"), fmt.Sprint(c.ArticleDir, "/", newID, ".md")); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}
+
+func EditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		data := new(EditorHTMLData)
+
+		data.Article, err = db.GetArticle(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		content, err := os.ReadFile(fmt.Sprint(c.ArticleDir, "/", data.Article.ID, ".md"))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Content = string(content)
+
+		data.Tags, err = db.GetArticleTags(data.Article.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		selectedTags, err := db.GetArticleTags(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Selected = make(map[int64]bool)
+		for _, tag := range selectedTags {
+			data.Selected[tag.ID] = true
+		}
+
+		data.Action = fmt.Sprint("save/", data.Article.ID)
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/editor.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func SaveArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		session.Values["article"] = nil
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article := &b.Article{
+			Title:         r.PostFormValue("article-title"),
+			Description:   r.PostFormValue("article-description"),
+			Published:     false,
+			Rejected:      false,
+			AuthorID:      session.Values["id"].(int64),
+			IsInIssue:     r.PostFormValue("issue") == "on",
+			AutoGenerated: false,
+		}
+
+		oldID, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		fmt.Println(oldID)
+		if oldID != 0 {
+			if err = db.DeleteArticle(oldID); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			if err = os.Remove(fmt.Sprint(c.ArticleDir, "/", oldID, ".md")); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+		}
+
+		article.ID, err = db.AddArticle(article)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		if err = os.WriteFile(articleAbsName, []byte(r.PostFormValue("article-content")), 0644); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article.Link = fmt.Sprint(c.Domain, "/article/serve/", article.ID)
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "link", Value: article.Link}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		r.ParseForm()
+		tags := make([]int64, 0)
+		for _, tag := range r.Form["tags"] {
+			tagID, err := strconv.ParseInt(tag, 10, 64)
+			if err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+			tags = append(tags, tagID)
+		}
+		if err = db.WriteArticleTags(article.ID, tags); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}

cmd/frontend/editor.go

@@ -0,0 +1,34 @@
+package frontend
+
+import (
+	"html/template"
+	"net/http"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func CreateTag(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-tag.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil)
+	}
+}
+
+func AddTag(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		db.AddTag(r.PostFormValue("tag"))
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}

cmd/frontend/issues.go

@@ -0,0 +1,196 @@
+package frontend
+
+import (
+	"fmt"
+	"html/template"
+	"io"
+	"log"
+	"mime"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func PublishLatestIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		session.Values["article"] = nil
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		title := r.PostFormValue("issue-title")
+		if len(title) == 0 {
+			err = fmt.Errorf("error: no title for issue specified")
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if session.Values["issue-image"] == nil {
+			err := "error: Image required"
+			log.Println(err)
+			http.Error(w, err, http.StatusBadRequest)
+			return
+		}
+
+		imgFileName := session.Values["issue-image"].(string)
+		imgAbsName := fmt.Sprint(c.PicsDir, "/", imgFileName)
+
+		imgFile, err := os.Open(imgAbsName)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer imgFile.Close()
+
+		imgInfo, err := imgFile.Stat()
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article := &b.Article{
+			Title:         title,
+			EncURL:        fmt.Sprint(c.Domain, "/image/serve/", imgFileName),
+			EncLength:     int(imgInfo.Size()),
+			EncType:       mime.TypeByExtension(filepath.Ext(imgAbsName)),
+			Published:     true,
+			Rejected:      false,
+			Created:       time.Now(),
+			AuthorID:      session.Values["id"].(int64),
+			AutoGenerated: true,
+		}
+
+		article.ID, err = db.AddArticle(article)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		if err = os.WriteFile(articleAbsName, []byte(r.PostFormValue("article-content")), 0644); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article.Link = fmt.Sprint(c.Domain, "/article/serve/", article.ID)
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "link", Value: article.Link}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "link", Value: article.Link}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.AddArticleToCurrentIssue(article.ID); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err := db.PublishLatestIssue(); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		feed, err := b.GenerateRSS(c, db)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if err = b.SaveRSS(c.RSSFile, feed); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		session.Values["issue-image"] = nil
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
+	}
+}
+
+func UploadIssueImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		if err := r.ParseMultipartForm(10 << 20); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		file, header, err := r.FormFile("issue-image")
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer file.Close()
+
+		nameStrings := strings.Split(header.Filename, ".")
+		extension := "." + nameStrings[len(nameStrings)-1]
+		filename := fmt.Sprint(uuid.New(), extension)
+		absFilepath, err := filepath.Abs(fmt.Sprint(c.PicsDir, "/", filename))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		img, err := os.Create(absFilepath)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer img.Close()
+
+		if _, err = io.Copy(img, file); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		session.Values["issue-image"] = filename
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+	}
+}

cmd/frontend/pdf.go

@@ -0,0 +1,59 @@
+package frontend
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+
+	"github.com/google/uuid"
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func UploadPDF(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		if err := r.ParseMultipartForm(10 << 20); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		file, _, err := r.FormFile("pdf-upload")
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer file.Close()
+
+		filename := fmt.Sprint(uuid.New(), ".pdf")
+		absFilepath, err := filepath.Abs(fmt.Sprint(c.PDFDir, "/", filename))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		pdf, err := os.Create(absFilepath)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer pdf.Close()
+
+		if _, err = io.Copy(pdf, file); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+	}
+}

cmd/frontend/sessions.go

@@ -1,4 +1,4 @@
-package ui
+package frontend
 
 import (
 	"fmt"
@@ -6,10 +6,10 @@ import (
 	"log"
 	"net/http"
 
-	"streifling.com/jason/cpolis/cmd/data"
+	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
-func saveSession(w http.ResponseWriter, r *http.Request, s *data.CookieStore, u *data.User) error {
+func saveSession(w http.ResponseWriter, r *http.Request, s *b.CookieStore, u *b.User) error {
 	session, err := s.Get(r, "cookie")
 	if err != nil {
 		return fmt.Errorf("error getting session: %v", err)
@@ -26,26 +26,26 @@ func saveSession(w http.ResponseWriter, r *http.Request, s *data.CookieStore, u
 	return nil
 }
 
-func HomePage(db *data.DB, s *data.CookieStore) http.HandlerFunc {
+func HomePage(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		numRows, err := db.CountEntries()
+		numRows, err := db.CountEntries("users")
 		if err != nil {
 			log.Fatalln(err)
 		}
 
-		files := []string{"web/templates/index.html"}
+		files := []string{c.WebDir + "/templates/index.html"}
 		if numRows == 0 {
-			files = append(files, "web/templates/add-user.html")
+			files = append(files, c.WebDir+"/templates/first-user.html")
 			tmpl, err := template.ParseFiles(files...)
 			template.Must(tmpl, err).Execute(w, nil)
 		} else {
 			session, _ := s.Get(r, "cookie")
 			if auth, ok := session.Values["authenticated"].(bool); auth && ok {
-				files = append(files, "web/templates/hub.html")
+				files = append(files, c.WebDir+"/templates/hub.html")
 				tmpl, err := template.ParseFiles(files...)
 				template.Must(tmpl, err).Execute(w, session.Values["role"])
 			} else {
-				files = append(files, "web/templates/login.html")
+				files = append(files, c.WebDir+"/templates/login.html")
 				tmpl, err := template.ParseFiles(files...)
 				template.Must(tmpl, err).Execute(w, nil)
 			}
@@ -53,15 +53,14 @@ func HomePage(db *data.DB, s *data.CookieStore) http.HandlerFunc {
 	}
 }
 
-func Login(db *data.DB, s *data.CookieStore) http.HandlerFunc {
+func Login(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		userName := r.PostFormValue("username")
 		password := r.PostFormValue("password")
 
-		id, err := db.GetID(userName)
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+		id, ok := db.GetID(userName)
+		if !ok {
+			http.Error(w, fmt.Sprintf("no such user: %v", userName), http.StatusBadRequest)
 			return
 		}
 
@@ -84,7 +83,45 @@ func Login(db *data.DB, s *data.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
 		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", user.Role)
 	}
 }
+
+func Logout(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		session.Options.MaxAge = -1
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/login.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil)
+	}
+}
+
+func ShowHub(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		session.Values["article"] = nil
+		if err = session.Save(r, w); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}

cmd/frontend/users.go

@@ -0,0 +1,430 @@
+package frontend
+
+import (
+	"fmt"
+	"html/template"
+	"log"
+	"net/http"
+	"strconv"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+type UserData struct {
+	*b.User
+	Msg string
+}
+
+func checkUserStrings(user *b.User) (string, int, bool) {
+	userLen := 15
+	nameLen := 50
+
+	if len(user.UserName) > userLen {
+		return "Benutzername", userLen, false
+	} else if len(user.FirstName) > nameLen {
+		return "Vorname", nameLen, false
+	} else if len(user.LastName) > nameLen {
+		return "Nachname", nameLen, false
+	} else {
+		return "", 0, true
+	}
+}
+
+func CreateUser(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil)
+	}
+}
+
+func AddUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		role, err := strconv.Atoi(r.PostFormValue("role"))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		htmlData := UserData{
+			User: &b.User{
+				UserName:  r.PostFormValue("username"),
+				FirstName: r.PostFormValue("first-name"),
+				LastName:  r.PostFormValue("last-name"),
+				Role:      role,
+			},
+		}
+		pass := r.PostFormValue("password")
+		pass2 := r.PostFormValue("password2")
+
+		if len(htmlData.UserName) == 0 || len(htmlData.FirstName) == 0 ||
+			len(htmlData.LastName) == 0 || len(pass) == 0 || len(pass2) == 0 {
+			htmlData.Msg = "Alle Felder müssen ausgefüllt werden."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+		userString, stringLen, ok := checkUserStrings(htmlData.User)
+		if !ok {
+			htmlData.Msg = fmt.Sprint(userString, " ist zu lang. Maximal ",
+				stringLen, " Zeichen erlaubt.")
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+		id, _ := db.GetID(htmlData.UserName)
+		if id != 0 {
+			htmlData.Msg = fmt.Sprint(htmlData.UserName,
+				" ist bereits vergeben. Bitte anderen Benutzernamen wählen.")
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+		if pass != pass2 {
+			htmlData.Msg = "Die Passwörter stimmen nicht überein."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+
+		_, err = db.AddUser(htmlData.User, pass)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}
+
+func EditSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		user, err := db.GetUser(session.Values["id"].(int64))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-self.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", user)
+	}
+}
+
+func UpdateSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		userData := UserData{
+			User: &b.User{
+				ID:        session.Values["id"].(int64),
+				UserName:  r.PostFormValue("username"),
+				FirstName: r.PostFormValue("first-name"),
+				LastName:  r.PostFormValue("last-name"),
+			},
+		}
+		oldPass := r.PostFormValue("old-password")
+		newPass := r.PostFormValue("password")
+		newPass2 := r.PostFormValue("password2")
+
+		if len(userData.UserName) == 0 || len(userData.FirstName) == 0 ||
+			len(userData.LastName) == 0 {
+			userData.Msg = "Alle Felder mit * müssen ausgefüllt sein."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+			tmpl = template.Must(tmpl, err)
+			tmpl.ExecuteTemplate(w, "page-content", userData.Msg)
+			return
+		}
+
+		userString, stringLen, ok := checkUserStrings(userData.User)
+		if !ok {
+			userData.Msg = fmt.Sprint(userString, " ist zu lang. Maximal ",
+				stringLen, " Zeichen erlaubt.")
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+			tmpl = template.Must(tmpl, err)
+			tmpl.ExecuteTemplate(w, "page-content", userData)
+			return
+		}
+
+		if id, ok := db.GetID(userData.UserName); ok {
+			if id != userData.ID {
+				userData.Msg = "Benutzername bereits vergeben."
+				userData.UserName = ""
+				tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+				tmpl = template.Must(tmpl, err)
+				tmpl.ExecuteTemplate(w, "page-content", userData)
+				return
+			}
+		}
+
+		if err = db.UpdateOwnAttributes(
+			userData.ID,
+			userData.UserName,
+			userData.FirstName,
+			userData.LastName,
+			oldPass,
+			newPass,
+			newPass2); err != nil {
+			userData.Msg = "Aktualisierung der Benutzerdaten fehlgeschlagen."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", userData)
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}
+
+func AddFirstUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var err error
+		htmlData := UserData{
+			User: &b.User{
+				UserName:  r.PostFormValue("username"),
+				FirstName: r.PostFormValue("first-name"),
+				LastName:  r.PostFormValue("last-name"),
+				Role:      b.Admin,
+			},
+		}
+		pass := r.PostFormValue("password")
+		pass2 := r.PostFormValue("password2")
+
+		if len(htmlData.UserName) == 0 || len(htmlData.FirstName) == 0 ||
+			len(htmlData.LastName) == 0 || len(pass) == 0 || len(pass2) == 0 {
+			htmlData.Msg = "Alle Felder müssen ausgefüllt werden."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+		userString, stringLen, ok := checkUserStrings(htmlData.User)
+		if !ok {
+			htmlData.Msg = fmt.Sprint(userString, " ist zu lang. Maximal ",
+				stringLen, " Zeichen erlaubt.")
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+		id, _ := db.GetID(htmlData.UserName)
+		if id != 0 {
+			htmlData.Msg = fmt.Sprint(htmlData.UserName,
+				" ist bereits vergeben. Bitte anderen Benutzernamen wählen.")
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+		if pass != pass2 {
+			htmlData.Msg = "Die Passwörter stimmen nicht überein."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
+			return
+		}
+
+		htmlData.ID, err = db.AddFirstUser(htmlData.User, pass)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if htmlData.ID > 1 {
+			errString := "error: there is already a first user"
+			log.Println(errString)
+			http.Error(w, errString, http.StatusInternalServerError)
+			return
+		}
+
+		if err := saveSession(w, r, s, htmlData.User); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if _, err := db.AddIssue(); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", 0)
+	}
+}
+
+func ShowAllUsers(c *b.Config, db *b.DB, s *b.CookieStore, action string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		data := new(struct {
+			Users  map[int64]*b.User
+			Action string
+		})
+
+		data.Action = action
+		data.Users, err = db.GetAllUsers()
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		delete(data.Users, session.Values["id"].(int64))
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/show-all-users.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data)
+	}
+}
+
+func EditUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if _, err := getSession(w, r, c, s); err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		user, err := db.GetUser(id)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", user)
+	}
+}
+
+func UpdateUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		role, err := strconv.Atoi(r.PostFormValue("role"))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		userData := UserData{
+			User: &b.User{
+				ID:        id,
+				UserName:  r.PostFormValue("username"),
+				FirstName: r.PostFormValue("first-name"),
+				LastName:  r.PostFormValue("last-name"),
+				Role:      role,
+			},
+		}
+		newPass := r.PostFormValue("password")
+		newPass2 := r.PostFormValue("password2")
+
+		if len(userData.UserName) == 0 || len(userData.FirstName) == 0 ||
+			len(userData.LastName) == 0 {
+			userData.Msg = "Alle Felder mit * müssen ausgefüllt sein."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+			tmpl = template.Must(tmpl, err)
+			tmpl.ExecuteTemplate(w, "page-content", userData.Msg)
+			return
+		}
+
+		userString, stringLen, ok := checkUserStrings(userData.User)
+		if !ok {
+			userData.Msg = fmt.Sprint(userString, " ist zu lang. Maximal ",
+				stringLen, " Zeichen erlaubt.")
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+			tmpl = template.Must(tmpl, err)
+			tmpl.ExecuteTemplate(w, "page-content", userData)
+			return
+		}
+
+		if id, ok := db.GetID(userData.UserName); ok {
+			if id != userData.ID {
+				userData.Msg = "Benutzername bereits vergeben."
+				userData.UserName = ""
+				tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+				tmpl = template.Must(tmpl, err)
+				tmpl.ExecuteTemplate(w, "page-content", userData)
+				return
+			}
+		}
+
+		if err = db.UpdateUserAttributes(
+			userData.ID,
+			userData.UserName,
+			userData.FirstName,
+			userData.LastName,
+			newPass,
+			newPass2,
+			userData.Role); err != nil {
+			userData.Msg = "Aktualisierung der Benutzerdaten fehlgeschlagen."
+			tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", userData)
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}
+
+func DeleteUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := getSession(w, r, c, s)
+		if err != nil {
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.DeleteUser(id); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl = template.Must(tmpl, err)
+		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"].(int))
+	}
+}

cmd/frontend/verification.go

@@ -0,0 +1,29 @@
+package frontend
+
+import (
+	"errors"
+	"html/template"
+	"net/http"
+
+	"github.com/gorilla/sessions"
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+// getSession is used for verifying that the user is logged in and returns their session and an error.
+func getSession(w http.ResponseWriter, r *http.Request, c *b.Config, s *b.CookieStore) (*sessions.Session, error) {
+	msg := "Keine gültige Session. Bitte erneut anmelden."
+	tmpl, tmplErr := template.ParseFiles(c.WebDir+"/templates/index.html", c.WebDir+"/templates/login.html")
+
+	session, err := s.Get(r, "cookie")
+	if err != nil {
+		template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", msg)
+		return nil, err
+	}
+
+	if session.IsNew {
+		template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", msg)
+		return session, errors.New("error: no existing session")
+	}
+
+	return session, nil
+}

cmd/main.go

@@ -0,0 +1,97 @@
+package main
+
+import (
+	"encoding/gob"
+	"log"
+	"net/http"
+	"os"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+	c "streifling.com/jason/cpolis/cmd/calls"
+	f "streifling.com/jason/cpolis/cmd/frontend"
+)
+
+func init() {
+	gob.Register(b.User{})
+}
+
+func main() {
+	config, err := b.HandleConfig()
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	logFile, err := os.OpenFile(config.LogFile, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	defer logFile.Close()
+	log.SetOutput(logFile)
+
+	db, err := b.OpenDB(config.DBName)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	defer db.Close()
+
+	key, err := b.LoadKey(config.KeyFile)
+	if err != nil {
+		key, err = b.NewKey()
+		if err != nil {
+			log.Fatalln(err)
+		}
+		b.SaveKey(key, config.KeyFile)
+	}
+	store := b.NewCookieStore(key)
+
+	mux := http.NewServeMux()
+	mux.Handle("/web/static/", http.StripPrefix("/web/static/",
+		http.FileServer(http.Dir(config.WebDir+"/static/"))))
+	mux.HandleFunc("/", f.HomePage(config, db, store))
+
+	mux.HandleFunc("GET /article/allow-edit/{id}", f.AllowEditArticle(config, db, store))
+	mux.HandleFunc("GET /article/all-published/review-edit", f.ShowPublishedArticles(config, db, store, "review-edit"))
+	mux.HandleFunc("GET /article/all-published/delete", f.ShowPublishedArticles(config, db, store, "review-delete"))
+	mux.HandleFunc("GET /article/all-rejected", f.ShowRejectedArticles(config, db, store))
+	mux.HandleFunc("GET /article/all-unpublished-unrejected-and-published-rejected", f.ShowUnpublishedUnrejectedAndPublishedRejectedArticles(config, db, store))
+	mux.HandleFunc("GET /article/delete/{id}", f.DeleteArticle(config, db, store))
+	mux.HandleFunc("GET /article/edit/{id}", f.EditArticle(config, db, store))
+	mux.HandleFunc("GET /article/publish/{id}", f.PublishArticle(config, db, store))
+	mux.HandleFunc("GET /article/reject/{id}", f.RejectArticle(config, db, store))
+	mux.HandleFunc("GET /article/review-delete/{id}", f.ReviewArticle(config, db, store, "delete", "Artikel löschen", "Löschen"))
+	mux.HandleFunc("GET /article/review-edit/{id}", f.ReviewArticle(config, db, store, "allow-edit", "Artikel bearbeiten", "Bearbeiten erlauben"))
+	mux.HandleFunc("GET /article/review-rejected/{id}", f.ReviewRejectedArticle(config, db, store))
+	mux.HandleFunc("GET /article/review-unpublished/{id}", f.ReviewArticle(config, db, store, "publish", "Artikel veröffentlichen", "Veröffentlichen"))
+	mux.HandleFunc("GET /article/save/{id}", f.SaveArticle(config, db, store))
+	mux.HandleFunc("GET /article/serve/{id}", c.ServeArticle(config, db))
+	mux.HandleFunc("GET /article/write", f.WriteArticle(config, db, store))
+	mux.HandleFunc("GET /hub", f.ShowHub(config, db, store))
+	mux.HandleFunc("GET /image/serve/{pic}", c.ServeImage(config, store))
+	mux.HandleFunc("GET /issue/this", f.ShowCurrentArticles(config, db, store))
+	mux.HandleFunc("GET /logout", f.Logout(config, store))
+	mux.HandleFunc("GET /pdf/get-list", c.ServePDFList(config))
+	mux.HandleFunc("GET /pdf/serve/{id}", c.ServePDF(config))
+	mux.HandleFunc("GET /rss/serve", c.ServeRSS(config))
+	mux.HandleFunc("GET /tag/create", f.CreateTag(config, store))
+	mux.HandleFunc("GET /user/create", f.CreateUser(config, store))
+	mux.HandleFunc("GET /user/delete/{id}", f.DeleteUser(config, db, store))
+	mux.HandleFunc("GET /user/edit/{id}", f.EditUser(config, db, store))
+	mux.HandleFunc("GET /user/edit/self", f.EditSelf(config, db, store))
+	mux.HandleFunc("GET /user/show-all/delete", f.ShowAllUsers(config, db, store, "delete"))
+	mux.HandleFunc("GET /user/show-all/edit", f.ShowAllUsers(config, db, store, "edit"))
+
+	mux.HandleFunc("POST /article/resubmit/{id}", f.ResubmitArticle(config, db, store))
+	mux.HandleFunc("POST /article/submit", f.SubmitArticle(config, db, store))
+	mux.HandleFunc("POST /article/upload-image", f.UploadArticleImage(config, store))
+	mux.HandleFunc("POST /issue/publish", f.PublishLatestIssue(config, db, store))
+	mux.HandleFunc("POST /issue/upload-image", f.UploadIssueImage(config, store))
+	mux.HandleFunc("POST /login", f.Login(config, db, store))
+	mux.HandleFunc("POST /pdf/upload", f.UploadPDF(config, store))
+	mux.HandleFunc("POST /tag/add", f.AddTag(config, db, store))
+	mux.HandleFunc("POST /user/add", f.AddUser(config, db, store))
+	mux.HandleFunc("POST /user/add-first", f.AddFirstUser(config, db, store))
+	mux.HandleFunc("POST /user/update/{id}", f.UpdateUser(config, db, store))
+	mux.HandleFunc("POST /user/update/self", f.UpdateSelf(config, db, store))
+
+	log.Fatalln(http.ListenAndServe(config.Port, mux))
+}

cmd/ui/admin.go

@@ -1,127 +0,0 @@
-package ui
-
-import (
-	"fmt"
-	"html/template"
-	"log"
-	"net/http"
-	"strconv"
-
-	"streifling.com/jason/cpolis/cmd/data"
-)
-
-type AddUserData struct {
-	*data.User
-	Msg string
-}
-
-func inputsEmpty(user *data.User, pass, pass2 string) bool {
-	return len(user.UserName) == 0 ||
-		len(user.FirstName) == 0 ||
-		len(user.LastName) == 0 ||
-		len(pass) == 0 ||
-		len(pass2) == 0
-}
-
-func checkUserStrings(user *data.User) (string, int, bool) {
-	userLen := 15
-	nameLen := 50
-
-	if len(user.UserName) > userLen {
-		return "Benutzername", userLen, false
-	} else if len(user.FirstName) > nameLen {
-		return "Vorname", nameLen, false
-	} else if len(user.LastName) > nameLen {
-		return "Nachname", nameLen, false
-	} else {
-		return "", 0, true
-	}
-}
-
-func CreateUser(w http.ResponseWriter, r *http.Request) {
-	tmpl, err := template.ParseFiles("web/templates/add-user.html")
-	template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil)
-}
-
-func AddUser(db *data.DB, s *data.CookieStore) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		role, err := strconv.Atoi(r.PostFormValue("role"))
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		htmlData := AddUserData{
-			User: &data.User{
-				UserName:  r.PostFormValue("username"),
-				FirstName: r.PostFormValue("first-name"),
-				LastName:  r.PostFormValue("last-name"),
-				Role:      role,
-			},
-		}
-		pass := r.PostFormValue("password")
-		pass2 := r.PostFormValue("password2")
-
-		if inputsEmpty(htmlData.User, pass, pass2) {
-			htmlData.Msg = "Alle Felder müssen ausgefüllt werden."
-			tmpl, err := template.ParseFiles("web/templates/add-user.html")
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
-			return
-		}
-		userString, stringLen, ok := checkUserStrings(htmlData.User)
-		if !ok {
-			htmlData.Msg = fmt.Sprint(userString, " ist zu lang. Maximal ",
-				stringLen, " Zeichen erlaubt.")
-			tmpl, err := template.ParseFiles("web/templates/add-user.html")
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
-			return
-		}
-		id, _ := db.GetID(htmlData.UserName)
-		if id != 0 {
-			htmlData.Msg = fmt.Sprint(htmlData.UserName,
-				" ist bereits vergeben. Bitte anderen Benutzernamen wählen.")
-			tmpl, err := template.ParseFiles("web/templates/add-user.html")
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
-			return
-		}
-		if pass != pass2 {
-			htmlData.Msg = "Die Passwörter stimmen nicht überein."
-			tmpl, err := template.ParseFiles("web/templates/add-user.html")
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", htmlData)
-			return
-		}
-
-		num, err := db.CountEntries()
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-		if num == 0 {
-			if htmlData.Role != data.Admin {
-				htmlData.Msg = "Der erste Benutzer muss ein Administrator sein."
-				htmlData.Role = data.Admin
-				tmpl, err := template.ParseFiles("web/templates/add-user.html")
-				tmpl = template.Must(tmpl, err)
-				tmpl.ExecuteTemplate(w, "page-content", htmlData)
-				return
-			}
-
-			if err := saveSession(w, r, s, htmlData.User); err != nil {
-				log.Println(err)
-				http.Error(w, err.Error(), http.StatusInternalServerError)
-				return
-			}
-		}
-
-		if err := db.AddUser(htmlData.User, pass); err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
-		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", 0)
-	}
-}

cmd/ui/articles.go

@@ -1,161 +0,0 @@
-package ui
-
-import (
-	"html/template"
-	"log"
-	"net/http"
-	"time"
-
-	"git.streifling.com/jason/rss"
-	"github.com/google/uuid"
-	"streifling.com/jason/cpolis/cmd/data"
-)
-
-func ShowHub(s *data.CookieStore) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := s.Get(r, "cookie")
-		if err != nil {
-			tmpl, err := template.ParseFiles("web/templates/login.html")
-			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
-		}
-
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
-		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", session.Values["role"])
-	}
-}
-
-func WriteArticle(tl *data.TagList) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		tmpl, err := template.ParseFiles("web/templates/editor.html")
-		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", tl.Get())
-	}
-}
-
-func FinishArticle(al *data.ArticleList, s *data.CookieStore) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		article := new(data.Article)
-		var err error
-
-		article.Title, err = data.ConvertToPlain(r.PostFormValue("editor-title"))
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		article.Desc, err = data.ConvertToPlain(r.PostFormValue("editor-desc"))
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		article.Content, err = data.ConvertToHTML(r.PostFormValue("editor-text"))
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		r.ParseForm()
-		article.Tags = append(article.Tags, r.Form["tags"]...)
-
-		session, err := s.Get(r, "cookie")
-		if err != nil {
-			tmpl, err := template.ParseFiles("web/templates/login.html")
-			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
-		}
-
-		article.UUID = uuid.New()
-		article.Author = session.Values["name"].(string)
-		article.Created = time.Now()
-		article.AuthorID = session.Values["id"].(int64)
-
-		al.Add(article)
-		al.Save("tmp/unpublished-articles.gob")
-
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
-		tmpl = template.Must(tmpl, err)
-		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
-	}
-}
-
-func ShowUnpublishedArticles(al *data.ArticleList) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		tmpl, err := template.ParseFiles("web/templates/unpublished-articles.html")
-		template.Must(tmpl, err).ExecuteTemplate(w, "page-content", al.Get())
-	}
-}
-
-func ReviewArticle(al *data.ArticleList, s *data.CookieStore) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		uuid, err := uuid.Parse(r.PostFormValue("uuid"))
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		for _, article := range al.Get() {
-			if article.UUID == uuid {
-				tmpl, err := template.ParseFiles("web/templates/to-be-published.html")
-				template.Must(tmpl, err).ExecuteTemplate(w, "page-content", article)
-				return
-			}
-		}
-
-		session, err := s.Get(r, "cookie")
-		if err != nil {
-			tmpl, err := template.ParseFiles("web/templates/login.html")
-			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
-		}
-
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
-		tmpl = template.Must(tmpl, err)
-		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
-	}
-}
-
-func PublishArticle(c *data.Channel, al *data.ArticleList, s *data.CookieStore) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		uuid, err := uuid.Parse(r.PostFormValue("uuid"))
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		article, ok := al.Release(uuid)
-		if !ok {
-			// TODO: Warnung anzeigen
-			// msg = "Alle Felder müssen ausgefüllt werden."
-			// tmpl, err := template.ParseFiles("web/templates/add-user.html")
-			// template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
-			return
-		}
-
-		session, err := s.Get(r, "cookie")
-		if err != nil {
-			tmpl, err := template.ParseFiles("web/templates/login.html")
-			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
-		}
-
-		c.Add(&rss.Item{
-			Title:       article.Title,
-			Author:      session.Values["name"].(string),
-			PubDate:     article.Created.Format(time.RFC1123Z),
-			Description: article.Desc,
-			Content:     &rss.Content{Value: article.Content},
-			Categories:  article.Tags,
-		})
-		c.Save("tmp/rss.gob")
-
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
-		tmpl = template.Must(tmpl, err)
-		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
-	}
-}

cmd/ui/editor.go

@@ -1,31 +0,0 @@
-package ui
-
-import (
-	"html/template"
-	"net/http"
-
-	"streifling.com/jason/cpolis/cmd/data"
-)
-
-func CreateTag(w http.ResponseWriter, r *http.Request) {
-	tmpl, err := template.ParseFiles("web/templates/add-tag.html")
-	template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil)
-}
-
-func AddTag(tl *data.TagList, s *data.CookieStore) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		tl.Add(r.PostFormValue("tag"))
-		tl.Save("tmp/tags.gob")
-
-		session, err := s.Get(r, "cookie")
-		if err != nil {
-			tmpl, err := template.ParseFiles("web/templates/login.html")
-			msg := "Session nicht mehr gültig. Bitte erneut anmelden."
-			template.Must(tmpl, err).ExecuteTemplate(w, "page-content", msg)
-		}
-
-		tmpl, err := template.ParseFiles("web/templates/hub.html")
-		tmpl = template.Must(tmpl, err)
-		tmpl.ExecuteTemplate(w, "page-content", session.Values["role"])
-	}
-}

cmd/ui/rss.go

@@ -1,28 +0,0 @@
-package ui
-
-import (
-	"html/template"
-	"log"
-	"net/http"
-
-	"git.streifling.com/jason/rss"
-	"streifling.com/jason/cpolis/cmd/data"
-)
-
-func ShowRSS(c *data.Channel) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		channel := c.Get()
-		feed := rss.NewFeed()
-		feed.Channels = append(feed.Channels, &channel)
-		rss, err := feed.ToXML()
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		files := []string{"web/templates/index.html", "web/templates/feed.rss"}
-		tmpl, err := template.ParseFiles(files...)
-		template.Must(tmpl, err).Execute(w, rss)
-	}
-}

cpolis.service

@@ -0,0 +1,9 @@
+[Unit]
+Description=cpolis
+
+[Service]
+ExecStart=/usr/local/bin/cpolis
+Restart=on-failure
+
+[Install]
+WantedBy=default.target

create_db.sql

@@ -0,0 +1,56 @@
+DROP TABLE IF EXISTS articles_tags;
+DROP TABLE IF EXISTS tags;
+DROP TABLE IF EXISTS articles;
+DROP TABLE IF EXISTS issues;
+DROP TABLE IF EXISTS users;
+
+CREATE TABLE users (
+    id          INT         AUTO_INCREMENT,
+    username    VARCHAR(15) NOT NULL UNIQUE,
+    password    VARCHAR(60) NOT NULL,
+    first_name  VARCHAR(50) NOT NULL,
+    last_name   VARCHAR(50) NOT NULL,
+    role        INT         NOT NULL,
+    PRIMARY KEY (id)
+);
+
+CREATE TABLE issues (
+    id          INT     AUTO_INCREMENT,
+    published   BOOL    NOT NULL,
+    PRIMARY KEY (id)
+);
+
+CREATE TABLE articles (
+    id              INT             AUTO_INCREMENT,
+    title           VARCHAR(255)    NOT NULL,
+    created         TIMESTAMP       DEFAULT CURRENT_TIMESTAMP,
+    description     TEXT            NOT NULL,
+    link            VARCHAR(255),
+    enc_url         VARCHAR(255),
+    enc_length      INT,
+    enc_type        VARCHAR(255),
+    published       BOOL            NOT NULL,
+    rejected        BOOL            NOT NULL,
+    author_id       INT             NOT NULL,
+    issue_id        INT             NOT NULL,
+    edited_id       INT,
+    is_in_issue     BOOL            NOT NULL,
+    auto_generated  BOOL            NOT NULL,
+    PRIMARY KEY (id),
+    FOREIGN KEY (author_id) REFERENCES users (id),
+    FOREIGN KEY (issue_id) REFERENCES issues (id)
+);
+
+CREATE TABLE tags (
+    id      INT         AUTO_INCREMENT,
+    name    VARCHAR(50) NOT NULL UNIQUE,
+    PRIMARY KEY (id)
+);
+
+CREATE TABLE articles_tags (
+    article_id  INT,
+    tag_id      INT,
+    PRIMARY KEY (article_id, tag_id),
+    FOREIGN KEY (article_id) REFERENCES articles (id),
+    FOREIGN KEY (tag_id) REFERENCES tags (id)
+);

go.mod

@@ -3,21 +3,57 @@ module streifling.com/jason/cpolis
 go 1.22.0
 
 require (
-	git.streifling.com/jason/rss v0.0.0-20240305164907-524bf9676188
+	firebase.google.com/go/v4 v4.14.1
+	git.streifling.com/jason/rss v0.1.3
+	github.com/BurntSushi/toml v1.3.2
 	github.com/go-sql-driver/mysql v1.7.1
 	github.com/google/uuid v1.6.0
-	github.com/gorilla/feeds v1.1.2
 	github.com/gorilla/sessions v1.2.2
 	github.com/microcosm-cc/bluemonday v1.0.26
 	github.com/yuin/goldmark v1.7.0
-	golang.org/x/crypto v0.14.0
-	golang.org/x/term v0.17.0
+	golang.org/x/crypto v0.21.0
+	golang.org/x/term v0.18.0
+	google.golang.org/api v0.170.0
 )
 
 require (
+	cloud.google.com/go v0.112.1 // indirect
+	cloud.google.com/go/compute v1.24.0 // indirect
+	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	cloud.google.com/go/firestore v1.15.0 // indirect
+	cloud.google.com/go/iam v1.1.7 // indirect
+	cloud.google.com/go/longrunning v0.5.5 // indirect
+	cloud.google.com/go/storage v1.40.0 // indirect
+	github.com/MicahParks/keyfunc v1.9.0 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/s2a-go v0.1.7 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
+	github.com/googleapis/gax-go/v2 v2.12.3 // indirect
 	github.com/gorilla/css v1.0.0 // indirect
 	github.com/gorilla/securecookie v1.1.2 // indirect
-	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sys v0.17.0 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.49.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
+	go.opentelemetry.io/otel v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/trace v1.24.0 // indirect
+	golang.org/x/net v0.23.0 // indirect
+	golang.org/x/oauth2 v0.18.0 // indirect
+	golang.org/x/sync v0.6.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	google.golang.org/appengine v1.6.8 // indirect
+	google.golang.org/appengine/v2 v2.0.2 // indirect
+	google.golang.org/genproto v0.0.0-20240213162025-012b6fc9bca9 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240314234333-6e1732d8331c // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240311132316-a219d84964c2 // indirect
+	google.golang.org/grpc v1.62.1 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
 )

go.sum

@@ -1,42 +1,232 @@
-git.streifling.com/jason/rss v0.0.0-20240305152729-9d8cc6464565 h1:/eO9NTksh+9yLz3HiYNR7BJo/iMTxxW5/d9h8I6vR6E=
-git.streifling.com/jason/rss v0.0.0-20240305152729-9d8cc6464565/go.mod h1:gpZF0nZbQSstMpyHD9DTAvlQEG7v4pjO5c7aIMWM4Jg=
-git.streifling.com/jason/rss v0.0.0-20240305160544-c8551159fe32 h1:G25NZzsD73rOkGYgV2vPUDviB0JXk5qi+dXOwB6J56U=
-git.streifling.com/jason/rss v0.0.0-20240305160544-c8551159fe32/go.mod h1:gpZF0nZbQSstMpyHD9DTAvlQEG7v4pjO5c7aIMWM4Jg=
-git.streifling.com/jason/rss v0.0.0-20240305160829-6cd08bb65d2a h1:TWQ9gwe7eWjaLUrZ0CJSc+sUUOw3VoGHlR3F8mH6vqs=
-git.streifling.com/jason/rss v0.0.0-20240305160829-6cd08bb65d2a/go.mod h1:gpZF0nZbQSstMpyHD9DTAvlQEG7v4pjO5c7aIMWM4Jg=
-git.streifling.com/jason/rss v0.0.0-20240305164907-524bf9676188 h1:C8M/j3f+cl5Y7YfGpU/ynb/SC/4tTYMDsyGFt3rswM8=
-git.streifling.com/jason/rss v0.0.0-20240305164907-524bf9676188/go.mod h1:gpZF0nZbQSstMpyHD9DTAvlQEG7v4pjO5c7aIMWM4Jg=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.112.1 h1:uJSeirPke5UNZHIb4SxfZklVSiWWVqW4oXlETwZziwM=
+cloud.google.com/go v0.112.1/go.mod h1:+Vbu+Y1UU+I1rjmzeMOb/8RfkKJK2Gyxi1X6jJCZLo4=
+cloud.google.com/go/compute v1.24.0 h1:phWcR2eWzRJaL/kOiJwfFsPs4BaKq1j6vnpZrc1YlVg=
+cloud.google.com/go/compute v1.24.0/go.mod h1:kw1/T+h/+tK2LJK0wiPPx1intgdAM3j/g3hFDlscY40=
+cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
+cloud.google.com/go/firestore v1.15.0 h1:/k8ppuWOtNuDHt2tsRV42yI21uaGnKDEQnRFeBpbFF8=
+cloud.google.com/go/firestore v1.15.0/go.mod h1:GWOxFXcv8GZUtYpWHw/w6IuYNux/BtmeVTMmjrm4yhk=
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main.go

@@ -1,79 +0,0 @@
-package main
-
-import (
-	"encoding/gob"
-	"log"
-	"net/http"
-	"os"
-
-	"streifling.com/jason/cpolis/cmd/data"
-	"streifling.com/jason/cpolis/cmd/ui"
-)
-
-func init() {
-	gob.Register(data.User{})
-}
-
-func main() {
-	logFile, err := os.OpenFile("tmp/cpolis.log",
-		os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer logFile.Close()
-	log.SetOutput(logFile)
-
-	db, err := data.OpenDB("cpolis")
-	if err != nil {
-		log.Fatalln(err)
-	}
-	defer db.Close()
-
-	feed, err := data.LoadChannel("tmp/rss.gob")
-	if err != nil {
-		log.Println(err)
-		feed = data.NewChannel("Freimaurer Distrikt Niedersachsen und Sachsen-Anhalt",
-			"https://distrikt-ni-st.de",
-			"Freiheit, Gleichheit, Brüderlichkeit, Toleranz und Humanität")
-	}
-
-	key, err := data.LoadKey("tmp/key.gob")
-	if err != nil {
-		key, err = data.NewKey()
-		if err != nil {
-			log.Fatalln(err)
-		}
-		data.SaveKey(key, "tmp/key.gob")
-	}
-	store := data.NewCookieStore(key)
-
-	articleList, err := data.LoadArticleList("tmp/unpublished-articles.gob")
-	if err != nil {
-		articleList = data.NewArticleList()
-	}
-
-	tagList, err := data.LoadTagList("tmp/tags.gob")
-	if err != nil {
-		tagList = data.NewTagList()
-	}
-
-	mux := http.NewServeMux()
-	mux.Handle("/web/static/", http.StripPrefix("/web/static/", http.FileServer(http.Dir("web/static/"))))
-	mux.HandleFunc("/", ui.HomePage(db, store))
-
-	mux.HandleFunc("GET /create-tag/", ui.CreateTag)
-	mux.HandleFunc("GET /create-user/", ui.CreateUser)
-	mux.HandleFunc("GET /hub/", ui.ShowHub(store))
-	mux.HandleFunc("GET /rss/", ui.ShowRSS(feed))
-	mux.HandleFunc("GET /unpublished-articles/", ui.ShowUnpublishedArticles(articleList))
-	mux.HandleFunc("GET /write-article/", ui.WriteArticle(tagList))
-
-	mux.HandleFunc("POST /add-tag/", ui.AddTag(tagList, store))
-	mux.HandleFunc("POST /add-user/", ui.AddUser(db, store))
-	mux.HandleFunc("POST /finish-article/", ui.FinishArticle(articleList, store))
-	mux.HandleFunc("POST /login/", ui.Login(db, store))
-	mux.HandleFunc("POST /review-article/", ui.ReviewArticle(articleList, store))
-	mux.HandleFunc("POST /publish-article/", ui.PublishArticle(feed, articleList, store))
-
-	log.Fatalln(http.ListenAndServe(":8080", mux))
-}

tailwind.config.js

@@ -0,0 +1,11 @@
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+    content: ["./web/templates/*.html"],
+    theme: {
+        extend: {}
+    },
+    plugins: [
+        require('@tailwindcss/typography')
+    ],
+    darkMode: 'selector',
+}

update.sh

@@ -0,0 +1,58 @@
+#! /bin/sh -
+
+CPOLIS_REPO_URL="https://git.streifling.com/api/v1/repos/jason/cpolis/releases"
+EXTRACTION_DIR=$HOME
+CPOLIS_DIR=$EXTRACTION_DIR/cpolis
+TAILWINDCSS_REPO_URL=https://api.github.com/repos/tailwindlabs/tailwindcss/releases/latest
+TMP_DIR=/tmp
+BIN_DIR=/usr/local/bin
+SYSTEMD_DIR=/etc/systemd/system
+
+check_dependency() {
+    if ! which $1 >/dev/null 2>&1; then
+        echo "$1 needs to be installed" >&2
+        exit 1
+    fi
+}
+
+if ! groups | grep -E 'root|wheel|sudo' >/dev/null; then
+    echo "You need administrative privileges for this script" >&2
+    exit 1
+fi
+
+check_dependency curl
+check_dependency go
+check_dependency jq
+check_dependency tar
+check_dependency xargs
+
+echo '\nDownloading cpolis...' >&2
+rm -fr $CPOLIS_DIR/*
+latest_release=$(curl -s $CPOLIS_REPO_URL | jq -r '.[0].tag_name')
+curl -Lo $TMP_DIR/cpolis.tar.gz https://git.streifling.com/jason/cpolis/archive/$latest_release.tar.gz
+tar -xzf $TMP_DIR/cpolis.tar.gz -C $EXTRACTION_DIR
+rm $TMP_DIR/cpolis.tar.gz
+
+echo '\nDownloading TailwindCSS...' >&2
+curl -s $TAILWINDCSS_REPO_URL |
+    grep -F browser_download_url |
+    grep -F linux-x64 |
+    cut -d'"' -f4 |
+    xargs -r curl -Lo $CPOLIS_DIR/tailwindcss
+chmod +x $CPOLIS_DIR/tailwindcss
+$CPOLIS_DIR/tailwindcss -i $CPOLIS_DIR/web/static/css/input.css -o $CPOLIS_DIR/web/static/css/style.css
+
+echo '\nBuilding cpolis...' >&2
+cd $CPOLIS_DIR
+go build -o $BIN_DIR/cpolis cmd/main.go
+cd
+
+echo '\nSetting up system files...' >&2
+sudo chown root:root $BIN_DIR/cpolis
+chmod +x $BIN_DIR/cpolis
+
+echo '\nSetting up service...' >&2
+sudo mv $CPOLIS_DIR/cpolis.service $SYSTEMD_DIR
+sudo chown root:root $SYSTEMD_DIR/cpolis.service
+sudo systemctl daemon-reload
+sudo systemctl is-active --quiet cpolis.service && sudo systemctl restart cpolis.service

web/static/css/input.css

@@ -0,0 +1,72 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+h2 {
+    @apply font-bold mb-2 text-2xl;
+}
+
+h3 {
+    @apply font-bold mb-2 text-xl;
+}
+
+input[type="password"],
+input[type="text"] {
+    @apply bg-slate-50 dark:bg-slate-950 border border-slate-200 dark:border-slate-800 h-8 rounded-md;
+}
+
+textarea {
+    @apply bg-slate-50 dark:bg-slate-950 border border-slate-200 dark:border-slate-800 h-32 rounded-md;
+}
+
+.btn-area-1 {
+    @apply grid grid-cols-1 gap-x-4 gap-y-1 mt-4;
+}
+
+.btn-area {
+    @apply grid grid-cols-1 md:grid-cols-2 gap-x-4 gap-y-1 mt-4;
+}
+
+.btn-area-3 {
+    @apply grid grid-cols-1 md:grid-cols-3 gap-x-4 gap-y-1 mt-4;
+}
+
+.btn {
+    @apply bg-slate-200 dark:bg-slate-800 hover:bg-slate-100 dark:hover:bg-slate-900 border border-slate-200 dark:border-slate-800 my-2 px-3 py-2 rounded-md w-full;
+}
+
+.action-btn {
+    @apply bg-slate-800 dark:bg-slate-200 hover:bg-slate-700 dark:hover:bg-slate-300 my-2 px-3 py-2 rounded-md text-slate-50 dark:text-slate-950 w-full;
+}
+
+.EasyMDEContainer .CodeMirror {
+    @apply bg-slate-50 dark:bg-slate-950 border-slate-200 dark:border-slate-800 text-slate-900 dark:text-slate-100
+}
+
+.EasyMDEContainer .cm-s-easymde .CodeMirror-cursor {
+    @apply border-slate-900 dark:border-slate-100
+}
+
+.EasyMDEContainer .editor-toolbar > * {
+    @apply text-slate-900 dark:text-slate-100
+}
+
+.EasyMDEContainer .editor-toolbar > .active, .editor-toolbar > button:hover, .editor-preview pre, .cm-s-easymde .cm-comment {
+    @apply bg-slate-100 dark:bg-slate-900
+}
+
+.EasyMDEContainer .CodeMirror-fullscreen {
+    @apply bg-slate-50 dark:bg-slate-950
+}
+
+.editor-toolbar {
+    @apply border border-slate-200 dark:border-slate-800
+}
+
+.editor-toolbar.fullscreen {
+    @apply bg-slate-50 dark:bg-slate-950
+}
+
+.editor-preview {
+    @apply bg-slate-50 dark:bg-slate-950
+}

web/templates/add-tag.html

@@ -1,8 +1,12 @@
 {{define "page-content"}}
-<h2>Neuer Benutzer</h2>
+<h2>Neuer Tag</h2>
+
 <form>
-    <input required name="tag" placeholder="Tag" type="text" />
-    <input type="submit" value="Anlegen" hx-post="/add-tag/" hx-target="#page-content" />
+    <input class="w-full" name="tag" placeholder="Tag eingeben" required type="text" />
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="Anlegen" hx-post="/tag/add" hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
 </form>
-<button hx-get="/hub/" hx-target="#page-content">Abbrechen</button>
+
 {{end}}

web/templates/add-user.html

@@ -1,23 +1,54 @@
 {{define "page-content"}}
 <h2>Neuer Benutzer</h2>
+
 <form>
-    <input required name="username" placeholder="Benutzername" type="text" value="{{.UserName}}" />
-    <input required name="password" placeholder="Passwort" type="password" />
-    <input required name="password2" placeholder="Passwort wiederholen" type="password" />
+    <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 gap-4">
+        <div>
+            <label for="username">Benutzername</label>
+            <input class="w-full" required name="username" type="text" value="{{.UserName}}" />
+        </div>
+        <div>
+            <label for="password">Passwort</label>
+            <input class="w-full" required name="password" placeholder="***" type="password" />
+        </div>
+        <div>
+            <label for="password2">Passwort wiederholen</label>
+            <input class="w-full" required name="password2" placeholder="***" type="password" />
+        </div>
+        <div>
+            <label for="first-name">Vorname</label>
+            <input class="w-full" required name="first-name" type="text" value="{{.FirstName}}" />
+        </div>
+        <div>
+            <label for="last-name">Nachname</label>
+            <input class="w-full" required name="last-name" type="text" value="{{.LastName}}" />
+        </div>
+    </div>
 
-    <input required name="first-name" placeholder="Vorname" type="text" value="{{.FirstName}}" />
-    <input required name="last-name" placeholder="Nachname" type="text" value="{{.LastName}}" />
+    <div class="flex flex-wrap gap-4">
+        <div>
+            <input required id="author" name="role" type="radio" value="3" {{if eq .Role 3 }}checked{{end}} />
+            <label for="author">Autor</label>
+        </div>
+        <div>
+            <input required id="editor" name="role" type="radio" value="2" {{if eq .Role 2 }}checked{{end}} />
+            <label for="editor">Redakteur</label>
+        </div>
+        <div>
+            <input required id="publisher" name="role" type="radio" value="1" {{if eq .Role 1 }}checked{{end}} />
+            <label for="publisher">Herausgeber</label>
+        </div>
+        <div>
+            <input required id="admin" name="role" type="radio" value="0" {{if eq .Role 0 }}checked{{end}} />
+            <label for="admin">Administrator</label>
+        </div>
+    </div>
 
-    <input required id="writer" name="role" type="radio" value="2" {{if eq .Role 2 }}checked{{end}} />
-    <label for="writer">Schreiber</label>
-    <input required id="editor" name="role" type="radio" value="1" {{if eq .Role 1 }}checked{{end}} />
-    <label for="editor">Redakteur</label>
-    <input required id="admin" name="role" type="radio" value="0" {{if eq .Role 0 }}checked{{end}} />
-    <label for="admin">Admin</label>
-
-    <input type="submit" value="Anlegen" hx-post="/add-user/" hx-target="#page-content" />
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="Anlegen" hx-post="/user/add" hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
 </form>
-<button hx-get="/hub/" hx-target="#page-content">Abbrechen</button>
 
 <script>
     var msg = "{{.Msg}}";

web/templates/current-articles.html

@@ -0,0 +1,73 @@
+{{define "page-content"}}
+<h2>Diese Ausgabe</h2>
+
+<form hx-encoding="multipart/form-data">
+    <div class="flex flex-col gap-4">
+        <div>
+            <h3>Aktuelle Artikel</h3>
+            <div class="flex flex-col gap-4">
+                {{range .}}
+                <div class="border border-slate-200 dark:border-slate-800 px-2 py-1 rounded-md">
+                    <h1 class="font-bold text-2xl">{{.Title}}</h1>
+                    <p>{{.Description}}</p>
+                </div>
+                {{end}}
+            </div>
+        </div>
+
+        <div>
+            <h3>Titelseite</h3>
+            <div class="grid grid-cols-2 gap-4 items-center">
+                <input class="h-full" name="issue-title" placeholder="Titel" required type="text" />
+                <label class="btn text-center" for="image-upload">Bild hochladen</label>
+                <input class="hidden" id="image-upload" name="issue-image" type="file" required
+                    hx-post="/issue/upload-image" />
+            </div>
+        </div>
+
+        <div>
+            <h3>Über diese Ausgabe</h3>
+            <div>
+                <textarea id="easyMDE" placeholder="Beschreibung dieser Ausgabe"></textarea>
+                <input id="issue-content" name="issue-content" type="hidden" />
+            </div>
+        </div>
+    </div>
+
+    <div class="btn-area">
+        <button class="action-btn" hx-post="/issue/publish" hx-target="#page-content">Ausgabe publizieren</button>
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
+</form>
+
+<script>
+    var easyMDE = new EasyMDE({
+        element: document.getElementById('easyMDE'),
+        hideIcons: ['image'],
+        imageTexts: {sbInit: ''},
+        showIcons: ["code", "table", "upload-image"],
+        uploadImage: true,
+
+        imageUploadFunction: function (file, onSuccess, onError) {
+            var formData = new FormData();
+            formData.append('article-image', file);
+
+            fetch('/article/upload-image', {
+                method: 'POST',
+                body: formData
+            })
+                .then(response => response.json())
+                .then(data => {
+                    onSuccess(data);
+                })
+                .catch(error => {
+                    onError(error);
+                });
+        },
+    });
+
+    easyMDE.codemirror.on("change", () => {
+        document.getElementById('issue-content').value = easyMDE.value();
+    });
+</script>
+{{end}}

web/templates/edit-self.html

@@ -0,0 +1,43 @@
+{{define "page-content"}}
+<h2>Profil bearbeiten</h2>
+
+<form>
+    <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 gap-4">
+        <div>
+            <label for="username">Benutzername</label>
+            <input class="w-full" name="username" type="text" value="{{.UserName}}" />
+        </div>
+
+        <div>
+            <label for="first-name">Vorname</label>
+            <input class="w-full" name="first-name" type="text" value="{{.FirstName}}" />
+        </div>
+
+        <div>
+            <label for="last-name">Nachname</label>
+            <input class="w-full" name="last-name" type="text" value="{{.LastName}}" />
+        </div>
+
+        <div>
+            <label for="old-password">Altes Passwort</label>
+            <input class="w-full" name="old-password" placeholder="***" type="password" />
+        </div>
+
+        <div>
+            <label for="password">Passwort</label>
+            <input class="w-full" name="password" placeholder="***" type="password" />
+        </div>
+
+        <div>
+            <label for="password2">Passwort wiederholen</label>
+            <input class="w-full" name="password2" placeholder="***" type="password" />
+        </div>
+    </div>
+
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="Aktualisieren" hx-post="/user/update/self"
+            hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
+</form>
+{{end}}

web/templates/edit-user.html

@@ -0,0 +1,57 @@
+{{define "page-content"}}
+<h2>Profil von {{.FirstName}} {{.LastName}} bearbeiten</h2>
+
+<form>
+    <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-3 gap-4">
+        <div>
+            <label for="username">Benutzername</label>
+            <input class="w-full" name="username" type="text" value="{{.UserName}}" />
+        </div>
+
+        <div>
+            <label for="first-name">Vorname</label>
+            <input class="w-full" name="first-name" type="text" value="{{.FirstName}}" />
+        </div>
+
+        <div>
+            <label for="last-name">Nachname</label>
+            <input class="w-full" name="last-name" type="text" value="{{.LastName}}" />
+        </div>
+
+        <div>
+            <label for="password">Passwort</label>
+            <input class="w-full" name="password" placeholder="***" type="password" />
+        </div>
+
+        <div>
+            <label for="password2">Passwort wiederholen</label>
+            <input class="w-full" name="password2" placeholder="***" type="password" />
+        </div>
+    </div>
+
+    <div class="flex flex-wrap gap-4">
+        <div>
+            <input required id="author" name="role" type="radio" value="3" {{if eq .Role 3 }}checked{{end}} />
+            <label for="author">Autor</label>
+        </div>
+        <div>
+            <input required id="editor" name="role" type="radio" value="2" {{if eq .Role 2 }}checked{{end}} />
+            <label for="editor">Redakteur</label>
+        </div>
+        <div>
+            <input required id="publisher" name="role" type="radio" value="1" {{if eq .Role 1 }}checked{{end}} />
+            <label for="publisher">Herausgeber</label>
+        </div>
+        <div>
+            <input required id="admin" name="role" type="radio" value="0" {{if eq .Role 0 }}checked{{end}} />
+            <label for="admin">Administrator</label>
+        </div>
+    </div>
+
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="Aktualisieren" hx-post="/user/update/{{.ID}}"
+            hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
+</form>
+{{end}}

web/templates/editor.html

@@ -1,17 +1,76 @@
 {{define "page-content"}}
 <h2>Editor</h2>
-<form>
-    <input name="editor-title" placeholder="Titel" type="text" />
-    <textarea name="editor-desc" placeholder="Beschreibung"></textarea>
-    <textarea name="editor-text" placeholder="Artikel"></textarea>
-    {{range .}}
-    <input id="{{.}}" name="tags" type="checkbox" value="{{.}}" />
-    <label for="{{.}}">{{.}}</label>
-    {{end}}
-    <input type="submit" value="Senden" hx-post="/finish-article/" hx-target="#page-content" />
-</form>
-{{end}}
 
-{{define "html-result"}}
-{{.}}
+<form id="edit-area">
+    <div class="flex flex-col gap-y-1">
+        <label for="article-title">Titel</label>
+        <input name="article-title" type="text" value="{{.Article.Title}}" />
+    </div>
+
+    <div class="flex flex-col gap-y-1">
+        <label for="article-description">Beschreibung</label>
+        <textarea name="article-description">{{.Article.Description}}</textarea>
+    </div>
+
+    <div class="flex flex-col gap-y-1">
+        <label for="easyMDE">Artikel</label>
+        <textarea id="easyMDE">{{.Content}}</textarea>
+        <input id="article-content" name="article-content" type="hidden" value="{{.Content}}" />
+    </div>
+
+    <div>
+        <span>Tags</span>
+        <div class="flex flex-wrap gap-x-4">
+            <div>
+                <input id="issue" name="issue" type="checkbox" {{if .Article.IsInIssue}}checked{{end}} />
+                <label for="issue">Orient Express</label>
+            </div>
+
+            {{range .Tags}}
+            <div>
+                <input id="tag-{{.Name}}" name="tags" type="checkbox" value="{{.ID}}" {{if index $.Selected
+                    .ID}}checked{{end}} />
+                <label for="tag-{{.Name}}">{{.Name}}</label>
+            </div>
+            {{end}}
+        </div>
+    </div>
+
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="Senden" hx-post="/article/{{.Action}}"
+            hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
+</form>
+
+<script>
+    var easyMDE = new EasyMDE({
+        element: document.getElementById('easyMDE'),
+        hideIcons: ['image'],
+        imageTexts: {sbInit: ''},
+        showIcons: ["code", "table", "upload-image"],
+        uploadImage: true,
+
+        imageUploadFunction: function (file, onSuccess, onError) {
+            var formData = new FormData();
+            formData.append('article-image', file);
+
+            fetch('/article/upload-image', {
+                method: 'POST',
+                body: formData
+            })
+                .then(response => response.json())
+                .then(data => {
+                    onSuccess(data);
+                })
+                .catch(error => {
+                    onError(error);
+                });
+        },
+    });
+
+    easyMDE.codemirror.on("change", () => {
+        document.getElementById('article-content').value = easyMDE.value();
+    });
+</script>
 {{end}}

web/templates/feed.rss

@@ -1,3 +0,0 @@
-{{define "page-content"}}
-{{.}}
-{{end}}

web/templates/first-user.html

@@ -0,0 +1,39 @@
+{{define "page-content"}}
+<h2>Erster Benutzer (Administrator)</h2>
+
+<form>
+    <div class="grid grid-cols-3 gap-4">
+        <div>
+            <label for="username">Benutzername</label>
+            <input class="w-full" required name="username" type="text" value="{{.UserName}}" />
+        </div>
+        <div>
+            <label for="password">Passwort</label>
+            <input class="w-full" required name="password" placeholder="***" type="password" />
+        </div>
+        <div>
+            <label for="password2">Passwort wiederholen</label>
+            <input class="w-full" required name="password2" placeholder="***" type="password" />
+        </div>
+        <div>
+            <label for="first-name">Vorname</label>
+            <input class="w-full" required name="first-name" type="text" value="{{.FirstName}}" />
+        </div>
+        <div>
+            <label for="last-name">Nachname</label>
+            <input class="w-full" required name="last-name" type="text" value="{{.LastName}}" />
+        </div>
+    </div>
+
+    <div class="btn-area-1">
+        <input class="action-btn" type="submit" value="Anlegen" hx-post="/user/add-first" hx-target="#page-content" />
+    </div>
+</form>
+
+<script>
+    var msg = "{{.Msg}}";
+    if (msg != "") {
+        alert(msg);
+    }
+</script>
+{{end}}

web/templates/hub.html

@@ -1,12 +1,51 @@
 {{define "page-content"}}
-<h2>Hub</h2>
-<button hx-get="/write-article/" hx-target="#page-content">Artikel schreiben</button>
-<button hx-get="/rss/" hx-target="#page-content">RSS Feed</button>
-{{if lt . 2}}
-<button hx-get="/unpublished-articles/" hx-target="#page-content">Unveröffentlichte Artikel</button>
-<button hx-get="/create-tag/" hx-target="#page-content">Neuer Tag</button>
-{{end}}
-{{if eq . 0}}
-<button hx-get="/create-user/" hx-target="#page-content">Benutzer hinzufügen</button>
-{{end}}
+<div class="flex flex-col gap-4">
+    <button class="btn" hx-get="/logout" hx-target="#page-content">Abmelden</button>
+
+    {{if lt . 4}}
+    <div class="mb-3">
+        <h2>Artikel</h2>
+        <div class="grid grid-cols-1 md:grid-cols-2 gap-x-4 gap-y-2">
+            <button class="btn" hx-get="/article/write" hx-target="#page-content">Artikel schreiben</button>
+            <button class="btn" hx-get="/article/all-rejected" hx-target="#page-content">Artikel bearbeiten</button>
+            {{if lt . 3}}<button class="btn" hx-get="/article/all-unpublished-unrejected-and-published-rejected"
+                hx-target="#page-content">Artikel veröffentlichen</button>{{end}}
+            {{if lt . 2}}<button class="btn" hx-get="/article/all-published/delete" hx-target="#page-content">Artikel
+                löschen</button>{{end}}
+            {{if lt . 2}}<button class="btn" hx-get="/article/all-published/review-edit"
+                hx-target="#page-content">Artikel bearbeiten lassen</button>{{end}}
+            {{if lt . 3}}<button class="btn" hx-get="/tag/create" hx-target="#page-content">Neuer Tag</button>{{end}}
+        </div>
+    </div>
+    {{end}}
+
+    {{if lt . 2}}
+    <div class="mb-3">
+        <h2>Ausgabe</h2>
+        <div class="grid grid-cols-1 md:grid-cols-2 gap-x-4 gap-y-2">
+            <button class="btn" hx-get="/issue/this" hx-target="#page-content">Diese Ausgabe</button>
+            <form class="flex" hx-encoding="multipart/form-data">
+                <label class="btn text-center" for="pdf-upload">PDF hochladen</label>
+                <input accept=".pdf" class="hidden" id="pdf-upload" name="pdf-upload" type="file"
+                    hx-post="/pdf/upload" />
+            </form>
+        </div>
+        {{end}}
+    </div>
+
+    {{if lt . 4}}
+    <div class="mb-3">
+        <h2>Benutzer</h2>
+        <div class="grid grid-cols-1 md:grid-cols-2 gap-x-4 gap-y-2">
+            <button class="btn" hx-get="/user/edit/self" hx-target="#page-content">Mein Profil bearbeiten</button>
+            {{if eq . 0}}<button class="btn" hx-get="/user/create" hx-target="#page-content">Benutzer
+                hinzufügen</button>{{end}}
+            {{if eq . 0}}<button class="btn" hx-get="/user/show-all/edit" hx-target="#page-content">Benutzer
+                bearbeiten</button>{{end}}
+            {{if eq . 0}}<button class="btn" hx-get="/user/show-all/delete" hx-target="#page-content">Benutzer
+                löschen</button>{{end}}
+        </div>
+    </div>
+    {{end}}
+</div>
 {{end}}

web/templates/index.html

@@ -5,17 +5,67 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>Orient Editor</title>
-    <link href="web/static/css/style.css" rel="stylesheet">
+
+    <link href="/web/static/css/style.css" rel="stylesheet">
+    <link rel="stylesheet" href="https://unpkg.com/easymde/dist/easymde.min.css">
 </head>
 
-<body>
-    <h1>Orient Editor</h1>
+<body
+    class="bg-slate-50 dark:bg-slate-950 container flex flex-col justify-between max-w-screen-lg min-h-screen mx-auto text-slate-900 dark:text-slate-100">
+    <header class="my-8">
+        <h1 class="font-bold text-4xl text-center">Orient Editor</h1>
 
-    <div id="page-content">
-        {{template "page-content" .}}
-    </div>
+        <div class="ml-4">
+            <label class="cursor-pointer flex items-center relative" for="theme-toggle">
+                <div class="bg-slate-200 dark:bg-slate-800 block h-6 w-12 rounded-full"></div>
+                <div
+                    class="absolute bg-slate-800 dark:bg-slate-50 dot left-1 top-1 h-4 w-4 rounded-full transform transition">
+                </div>
+                <span class="ml-2">Dunkel</span>
+            </label>
+            <input type="checkbox" id="theme-toggle" class="sr-only">
+        </div>
+    </header>
 
-    <script src="web/static/js/htmx.min.js"></script>
+    <main class="mx-4">
+        <div id="page-content">
+            {{template "page-content" .}}
+        </div>
+    </main>
+
+    <footer class="text-center text-gray-500 my-8">
+        <p>&copy; 2024 Jason Streifling. Alle Rechte vorbehalten.</p>
+        <p>v0.11.0 - <strong>Alpha: Drastische Änderungen und Fehler vorbehalten.</strong></p>
+    </footer>
+
+    <script src="https://unpkg.com/htmx.org@2.0.2"></script>
+    <script src="https://unpkg.com/easymde/dist/easymde.min.js"></script>
+    <script>
+        document.addEventListener('DOMContentLoaded', () => {
+            const toggleSwitch = document.getElementById('theme-toggle');
+            const dot = document.querySelector('.dot');
+
+            if (localStorage.theme === 'dark' || (!('theme' in localStorage) && window.matchMedia('(prefers-color-scheme: dark)').matches)) {
+                document.documentElement.classList.add('dark')
+                toggleSwitch.checked = true;
+                dot.classList.add('translate-x-6');
+            } else {
+                document.documentElement.classList.remove('dark')
+            }
+
+            toggleSwitch.addEventListener('change', () => {
+                if (toggleSwitch.checked) {
+                    document.documentElement.classList.add('dark');
+                    localStorage.theme = 'dark';
+                    dot.classList.add('translate-x-6');
+                } else {
+                    document.documentElement.classList.remove('dark');
+                    localStorage.theme = 'light';
+                    dot.classList.remove('translate-x-6');
+                }
+            });
+        });
+    </script>
 </body>
 
 </html>

web/templates/login.html

@@ -1,8 +1,14 @@
 {{define "page-content"}}
 <h2>Anmeldung</h2>
+
 <form>
-    <input name="username" placeholder="Benutzername" type="text" />
-    <input name="password" placeholder="Passwort" type="password" />
-    <input type="submit" value="Anmelden" hx-post="/login/" hx-target="#page-content" />
+    <div class="grid grid-cols-1 md:grid-cols-2 gap-4 my-1">
+        <input class="w-full" name="username" placeholder="Benutzername" type="text" />
+        <input class="w-full" name="password" placeholder="Passwort" type="password" />
+    </div>
+
+    <div class="mt-2">
+        <input class="action-btn" type="submit" value="Anmelden" hx-post="/login" hx-target="#page-content" />
+    </div>
 </form>
 {{end}}

web/templates/published-articles.html

@@ -0,0 +1,14 @@
+{{define "page-content"}}
+<h2>Artikel löschen</h2>
+
+<div class="flex flex-col gap-4">
+    {{range .Articles}}
+    <button class="btn" hx-get="/article/{{$.Action}}/{{.ID}}" hx-target="#page-content">
+        <h1 class="font-bold text-2xl">{{.Title}}</h1>
+        <p>{{.Description}}</p>
+    </button>
+    {{end}}
+
+    <button class="action-btn" hx-get="/hub" hx-target="#page-content">Zurück</button>
+</div>
+{{end}}

web/templates/rejected-articles.html

@@ -0,0 +1,16 @@
+{{define "page-content"}}
+<h2>Artikel bearbeiten</h2>
+
+<div class="flex flex-col gap-4">
+    {{range .RejectedArticles}}
+    {{if index $.MyIDs .ID}}
+    <button class="btn" hx-get="/article/review-rejected/{{.ID}}" hx-target="#page-content">
+        <h1 class="font-bold text-2xl">{{.Title}}</h1>
+        <p>{{.Description}}</p>
+    </button>
+    {{end}}
+    {{end}}
+
+    <button class="action-btn" hx-get="/hub" hx-target="#page-content">Zurück</button>
+</div>
+{{end}}

web/templates/review-article.html

@@ -0,0 +1,50 @@
+{{define "page-content"}}
+<h2>{{.ActionTitle}}</h2>
+
+<div>
+    <span>Titel</span>
+    <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
+        {{.Article.Title}}
+    </div>
+
+    <span>Beschreibung</span>
+    <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
+        {{.Article.Description}}
+    </div>
+
+    <span>Artikel</span>
+    <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
+        <div class="prose text-slate-900 dark:text-slate-100">
+            {{.HTMLContent}}
+        </div>
+    </div>
+
+    <span>Tags</span>
+    <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
+        {{if .Article.IsInIssue}}
+        <span>Orient Express</span>
+        <br>
+        {{end}}
+        {{range .Tags}}
+        <span>{{.Name}}</span>
+        <br>
+        {{end}}
+    </div>
+
+    {{if eq .Action "publish"}}
+    <div class="btn-area-3">
+        <input class="action-btn" type="submit" value="{{.ActionButton}}" hx-get="/article/{{.Action}}/{{.Article.ID}}"
+            hx-target="#page-content" />
+        <input class="btn" type="submit" value="Ablehnen" hx-get="/article/reject/{{.Article.ID}}"
+            hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
+    {{else}}
+    <div class="btn-area">
+        <input class="action-btn" type="submit" value="{{.ActionButton}}" hx-get="/article/{{.Action}}/{{.Article.ID}}"
+            hx-target="#page-content" />
+        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
+    </div>
+    {{end}}
+</div>
+{{end}}

web/templates/show-all-users.html

@@ -0,0 +1,24 @@
+{{define "page-content"}}
+<h2>Alle Benutzer</h2>
+
+<div class="flex flex-col gap-4">
+    {{range .Users}}
+    <button class="btn" hx-get="/user/{{$.Action}}/{{.ID}}" hx-target="#page-content">
+        <h1 class="font-bold text-2xl">
+            {{.UserName}}
+            ({{if eq .Role 0}}
+            Administrator
+            {{else if eq .Role 1}}
+            Herausgeber
+            {{else if eq .Role 2}}
+            Redakteur
+            {{else}}
+            Autor
+            {{end}})
+        </h1>
+        <p>{{.FirstName}} {{.LastName}}</p>
+    </button>
+    {{end}}
+    <button class="action-btn" hx-get="/hub" hx-target="#page-content">Zurück</button>
+</div>
+{{end}}

web/templates/to-be-published.html

@@ -1,11 +0,0 @@
-{{define "page-content"}}
-<form>
-    <input name="editor-title" type="text" value="{{.Title}}" />
-    <textarea name="editor-desc">{{.Desc}}</textarea>
-    <textarea name="editor-text">{{.Content}}</textarea>
-    <input name="uuid" type="hidden" value="{{.UUID}}" />
-    <input type="submit" value="Veröffentlichen" hx-post="/publish-article/" hx-target="#page-content" />
-    <input type="submit" value="Ablehnen" hx-post="/reject-article/" hx-target="#page-content" />
-</form>
-<button hx-get="/hub/" hx-target="#page-content">Zurück</button>
-{{end}}

web/templates/unpublished-articles.html

@@ -1,10 +1,13 @@
 {{define "page-content"}}
-<form>
+<h2>Artikel veröffentlichen</h2>
+
+<div class="flex flex-col gap-4">
     {{range .}}
-    <input required id="{{.UUID}}" name="uuid" type="radio" value="{{.UUID}}" />
-    <label for="{{.UUID}}">{{.Title}}</label>
+    <button class="btn" hx-get="/article/review-unpublished/{{.ID}}" hx-target="#page-content">
+        <h1 class="font-bold text-2xl">{{.Title}}</h1>
+        <p>{{.Description}}</p>
+    </button>
     {{end}}
-    <input type="submit" value="Auswählen" hx-post="/review-article/" hx-target="#page-content" />
-</form>
-<button hx-get="/hub/" hx-target="#page-content">Zurück</button>
+    <button class="action-btn" hx-get="/hub" hx-target="#page-content">Zurück</button>
+</div>
 {{end}}