Create ValidateSession() to not have unwanted side effects when validating session

.air.toml

@@ -12,7 +12,6 @@ args_bin = [
     "-domain localhost",
     "-feed tmp/cpolis.atom",
     "-firebase tmp/firebase.json",
-    "-gob tmp/cpolis.gob",
     "-img-width 256",
     "-link https://distrikt-ni-st.de",
     "-log tmp/cpolis.log",

Dockerfile

@@ -0,0 +1,11 @@
+FROM golang:latest
+
+RUN apk add --no-cache pandoc
+
+WORKDIR /var/www/cpolis
+
+COPY . .
+
+RUN go build -o cpolis cmd/main.go
+
+CMD ["./cpolis"]

cmd/backend/articles.go

@@ -5,7 +5,11 @@ import (
 	"database/sql"
 	"fmt"
 	"log"
+	"os"
+	"path/filepath"
 	"time"
+
+	"github.com/google/uuid"
 )
 
 type Article struct {
@@ -13,11 +17,12 @@ type Article struct {
 	Title         string
 	BannerLink    string
 	Summary       string
-	ContentLink   string
+	UUID          uuid.UUID
 	ID            int64
-	AuthorID      int64
+	CreatorID     int64
 	IssueID       int64
 	EditedID      int64
+	Clicks        int
 	Published     bool
 	Rejected      bool
 	IsInIssue     bool
@@ -30,8 +35,8 @@ func (db *DB) AddArticle(a *Article) (int64, error) {
 	selectQuery := "SELECT id FROM issues WHERE published = false"
 	insertQuery := `
     INSERT INTO articles
-        (title, banner_link, summary, content_link, published, rejected, author_id, issue_id, edited_id, is_in_issue, auto_generated)
+        (title, banner_link, summary, published, rejected, creator_id, issue_id, edited_id, clicks, is_in_issue, auto_generated, uuid)
-    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
     `
 
 	for i := 0; i < TxMaxRetries; i++ {
@@ -48,7 +53,7 @@ func (db *DB) AddArticle(a *Article) (int64, error) {
 				return 0, fmt.Errorf("error getting issue ID when adding article to DB: %v", err)
 			}
 
-			result, err := tx.Exec(insertQuery, a.Title, a.BannerLink, a.Summary, a.ContentLink, a.Published, a.Rejected, a.AuthorID, id, a.EditedID, a.IsInIssue, a.AutoGenerated)
+			result, err := tx.Exec(insertQuery, a.Title, a.BannerLink, a.Summary, a.Published, a.Rejected, a.CreatorID, id, a.EditedID, 0, a.IsInIssue, a.AutoGenerated, a.UUID.String())
 			if err != nil {
 				if rollbackErr := tx.Rollback(); rollbackErr != nil {
 					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
@@ -82,7 +87,7 @@ func (db *DB) AddArticle(a *Article) (int64, error) {
 
 func (db *DB) GetArticle(id int64) (*Article, error) {
 	query := `
-    SELECT title, created, banner_link, summary, content_link, published, author_id, issue_id, edited_id, is_in_issue, auto_generated
+    SELECT title, created, banner_link, summary, published, creator_id, issue_id, edited_id, clicks, is_in_issue, auto_generated, uuid
     FROM articles
     WHERE id = ?
     `
@@ -90,9 +95,10 @@ func (db *DB) GetArticle(id int64) (*Article, error) {
 
 	article := new(Article)
 	var created []byte
+	var uuidString string
 	var err error
 
-	if err := row.Scan(&article.Title, &created, &article.BannerLink, &article.Summary, &article.ContentLink, &article.Published, &article.AuthorID, &article.IssueID, &article.EditedID, &article.IsInIssue, &article.AutoGenerated); err != nil {
+	if err := row.Scan(&article.Title, &created, &article.BannerLink, &article.Summary, &article.Published, &article.CreatorID, &article.IssueID, &article.EditedID, &article.Clicks, &article.IsInIssue, &article.AutoGenerated, &uuidString); err != nil {
 		return nil, fmt.Errorf("error scanning article row: %v", err)
 	}
 
@@ -102,12 +108,42 @@ func (db *DB) GetArticle(id int64) (*Article, error) {
 		return nil, fmt.Errorf("error parsing created: %v", err)
 	}
 
+	article.UUID, err = uuid.Parse(uuidString)
+	if err != nil {
+		return nil, fmt.Errorf("error parsing uuid: %v", err)
+	}
+
+	return article, nil
+}
+
+func (db *DB) GetArticleByUUID(u uuid.UUID) (*Article, error) {
+	query := `
+    SELECT id, title, created, banner_link, summary, published, creator_id, issue_id, edited_id, clicks, is_in_issue, auto_generated
+    FROM articles
+    WHERE uuid = ?
+    `
+	row := db.QueryRow(query, u.String())
+
+	article := new(Article)
+	var created []byte
+	var err error
+
+	if err := row.Scan(&article.ID, &article.Title, &created, &article.BannerLink, &article.Summary, &article.Published, &article.CreatorID, &article.IssueID, &article.EditedID, &article.Clicks, &article.IsInIssue, &article.AutoGenerated); err != nil {
+		return nil, fmt.Errorf("error scanning article row: %v", err)
+	}
+
+	article.UUID = u
+	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, banner_link, summary, content_link, author_id, issue_id, published, rejected, is_in_issue, auto_generated
+    SELECT id, title, created, banner_link, summary, creator_id, issue_id, clicks, published, rejected, is_in_issue, auto_generated, uuid
     FROM articles
     WHERE %s = ?
     `, attribute)
@@ -120,8 +156,9 @@ func (db *DB) GetCertainArticles(attribute string, value bool) ([]*Article, erro
 	for rows.Next() {
 		article := new(Article)
 		var created []byte
+		var uuidString string
 
-		if err = rows.Scan(&article.ID, &article.Title, &created, &article.BannerLink, &article.Summary, &article.ContentLink, &article.AuthorID, &article.IssueID, &article.Published, &article.Rejected, &article.IsInIssue, &article.AutoGenerated); err != nil {
+		if err = rows.Scan(&article.ID, &article.Title, &created, &article.BannerLink, &article.Summary, &article.CreatorID, &article.IssueID, &article.Clicks, &article.Published, &article.Rejected, &article.IsInIssue, &article.AutoGenerated, &uuidString); err != nil {
 			return nil, fmt.Errorf("error scanning article row: %v", err)
 		}
 
@@ -130,6 +167,11 @@ func (db *DB) GetCertainArticles(attribute string, value bool) ([]*Article, erro
 			return nil, fmt.Errorf("error parsing created: %v", err)
 		}
 
+		article.UUID, err = uuid.Parse(uuidString)
+		if err != nil {
+			return nil, fmt.Errorf("error parsing uuid: %v", err)
+		}
+
 		articleList = append(articleList, article)
 	}
 
@@ -141,7 +183,7 @@ func (db *DB) GetCurrentIssueArticles() ([]*Article, error) {
 	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
 	issueQuery := "SELECT id FROM issues WHERE published = false"
 	articlesQuery := `
-    SELECT id, title, created, banner_link, summary, content_link, author_id, auto_generated
+    SELECT id, title, created, banner_link, summary, clicks, auto_generated, uuid
     FROM articles
     WHERE issue_id = ? AND published = true AND is_in_issue = true
     `
@@ -173,8 +215,9 @@ func (db *DB) GetCurrentIssueArticles() ([]*Article, error) {
 			for rows.Next() {
 				article := new(Article)
 				var created []byte
+				var uuidString string
 
-				if err = rows.Scan(&article.ID, &article.Title, &created, &article.BannerLink, &article.Summary, &article.ContentLink, &article.AuthorID, &article.AutoGenerated); err != nil {
+				if err = rows.Scan(&article.ID, &article.Title, &created, &article.BannerLink, &article.Summary, &article.Clicks, &article.AutoGenerated, &uuidString); err != nil {
 					if rollbackErr := tx.Rollback(); rollbackErr != nil {
 						log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
 					}
@@ -189,6 +232,14 @@ func (db *DB) GetCurrentIssueArticles() ([]*Article, error) {
 					return nil, fmt.Errorf("error parsing created: %v", err)
 				}
 
+				article.UUID, err = uuid.Parse(uuidString)
+				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 uuid: %v", err)
+				}
+
 				articleList = append(articleList, article)
 			}
 
@@ -256,11 +307,23 @@ func (db *DB) AddArticleToCurrentIssue(id int64) error {
 
 func (db *DB) DeleteArticle(id int64) error {
 	articlesTagsQuery := "DELETE FROM articles_tags WHERE article_id = ?"
+	articlesContributorsQuery := "DELETE FROM articles_contributors WHERE article_id = ?"
+	articlesAuthorsQuery := "DELETE FROM articles_authors 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)
+		return fmt.Errorf("error deleting articles_tags %v from DB: %v", id, err)
+	}
+
+	_, err = db.Exec(articlesContributorsQuery, id)
+	if err != nil {
+		return fmt.Errorf("error deleting articles_contributors %v from DB: %v", id, err)
+	}
+
+	_, err = db.Exec(articlesAuthorsQuery, id)
+	if err != nil {
+		return fmt.Errorf("error deleting articles_authors %v from DB: %v", id, err)
 	}
 
 	_, err = db.Exec(articlesQuery, id)
@@ -270,3 +333,13 @@ func (db *DB) DeleteArticle(id int64) error {
 
 	return nil
 }
+
+func WriteArticleToFile(c *Config, articleUUID uuid.UUID, content []byte) error {
+	articlePath := filepath.Join(c.ArticleDir, fmt.Sprint(articleUUID, ".md"))
+
+	if err := os.WriteFile(articlePath, content, 0644); err != nil {
+		return fmt.Errorf("error writing article %v to file: %v", articleUUID, err)
+	}
+
+	return nil
+}

cmd/backend/articles_authors.go

@@ -0,0 +1,114 @@
+package backend
+
+import (
+	"fmt"
+	"log"
+)
+
+func (db *DB) WriteArticleAuthors(articleID int64, authorIDs []int64) error {
+	query := "INSERT INTO articles_authors (article_id, author_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 _, authorID := range authorIDs {
+				if _, err := tx.Exec(query, articleID, authorID); 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_authors: %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) GetArticleAuthors(c *Config, articleID int64) ([]*User, error) {
+	query := `
+    SELECT u.id
+    FROM articles a
+        INNER JOIN articles_authors aa ON a.id = aa.article_id
+        INNER JOIN users u ON aa.author_id = u.id
+    WHERE a.id = ?
+    `
+	rows, err := db.Query(query, articleID)
+	if err != nil {
+		return nil, fmt.Errorf("error querying articles_authors: %v", err)
+	}
+
+	authors := make([]*User, 0)
+	for rows.Next() {
+		var authorID int64
+
+		if err = rows.Scan(&authorID); err != nil {
+			return nil, fmt.Errorf("error scanning rows: %v", err)
+		}
+
+		author, err := db.GetUser(c, authorID)
+		if err != nil {
+			return nil, fmt.Errorf("error getting user info for article author: %v", err)
+		}
+
+		authors = append(authors, author)
+	}
+
+	return authors, nil
+}
+
+func (db *DB) UpdateArticleAuthors(articleID int64, authorIDs []int64) error {
+	deleteQuery := "DELETE FROM articles_authors WHERE article_id = ?"
+	insertQuery := "INSERT INTO articles_authors (article_id, author_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_authors before inserting new ones: %v", err)
+			}
+
+			for _, authorID := range authorIDs {
+				if _, err := tx.Exec(insertQuery, articleID, authorID); 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_authors: %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/articles_contributors.go

@@ -0,0 +1,114 @@
+package backend
+
+import (
+	"fmt"
+	"log"
+)
+
+func (db *DB) WriteArticleContributors(articleID int64, contributorIDs []int64) error {
+	query := "INSERT INTO articles_contributors (article_id, contributor_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 _, contributorID := range contributorIDs {
+				if _, err := tx.Exec(query, articleID, contributorID); 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_contributors: %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) GetArticleContributors(c *Config, articleID int64) ([]*User, error) {
+	query := `
+    SELECT u.id
+    FROM articles a
+        INNER JOIN articles_contributors ac ON a.id = ac.article_id
+        INNER JOIN users u ON ac.contributor_id = u.id
+    WHERE a.id = ?
+    `
+	rows, err := db.Query(query, articleID)
+	if err != nil {
+		return nil, fmt.Errorf("error querying articles_contributors: %v", err)
+	}
+
+	contributors := make([]*User, 0)
+	for rows.Next() {
+		var contributorID int64
+
+		if err = rows.Scan(&contributorID); err != nil {
+			return nil, fmt.Errorf("error scanning rows: %v", err)
+		}
+
+		contributor, err := db.GetUser(c, contributorID)
+		if err != nil {
+			return nil, fmt.Errorf("error getting user info for article contributor: %v", err)
+		}
+
+		contributors = append(contributors, contributor)
+	}
+
+	return contributors, nil
+}
+
+func (db *DB) UpdateArticleContributors(articleID int64, contributorIDs []int64) error {
+	deleteQuery := "DELETE FROM articles_contributors WHERE article_id = ?"
+	insertQuery := "INSERT INTO articles_contributors (article_id, contributor_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_contributors before inserting new ones: %v", err)
+			}
+
+			for _, contributorID := range contributorIDs {
+				if _, err := tx.Exec(insertQuery, articleID, contributorID); 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_contributors: %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/articles_tags.go

@@ -43,8 +43,8 @@ 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 articles_tags at ON a.id = at.article_id
-    INNER JOIN tags t ON at.tag_id = t.id
+        INNER JOIN tags t ON at.tag_id = t.id
     WHERE a.id = ?
     `
 	rows, err := db.Query(query, articleID)

cmd/backend/atom.go

@@ -8,13 +8,13 @@ import (
 	"git.streifling.com/jason/atom"
 )
 
-type Feed struct{ *atom.Feed }
-
 func GenerateAtomFeed(c *Config, db *DB) (*string, error) {
 	feed := atom.NewFeed(c.Title)
 	feed.ID = atom.NewID("urn:feed:1")
 	feed.Subtitle = atom.NewText("text", c.Description)
-	feed.AddLink(atom.NewLink(c.Link))
+
+	linkID := feed.AddLink(atom.NewLink(c.Link))
+	feed.Links[linkID].Rel = "self"
 
 	feed.Generator = atom.NewGenerator("cpolis")
 	feed.Generator.URI = "https://git.streifling.com/jason/cpolis"
@@ -32,27 +32,52 @@ func GenerateAtomFeed(c *Config, db *DB) (*string, error) {
 		}
 		entry := atom.NewEntry(articleTitle)
 		entry.ID = atom.NewID(fmt.Sprint("urn:entry:", article.ID))
-		entry.Content = atom.NewContent(atom.OutOfLine, "text/hmtl", article.ContentLink)
 		entry.Published = atom.NewDate(article.Created)
+		entry.Content = atom.NewContent(atom.OutOfLine, "text/html", fmt.Sprint(c.Domain, "/article/serve/", article.UUID))
 
-		linkID := entry.AddLink(atom.NewLink(article.BannerLink))
-		entry.Links[linkID].Rel = "enclosure"
-		entry.Links[linkID].Type = "image/webp"
-
-		user, err := db.GetUser(c, article.AuthorID)
-		if err != nil {
-			return nil, fmt.Errorf("error getting user user info for Atom feed: %v", err)
-		}
-		entry.AddAuthor(atom.NewPerson(user.FirstName + " " + user.LastName))
-
-		articleSummary, err := ConvertToPlain(article.Summary)
-		if err != nil {
-			return nil, fmt.Errorf("error converting description to plain text for Atom feed: %v", err)
-		}
 		if article.AutoGenerated {
-			articleSummary = "auto generated"
+			entry.Summary = atom.NewText("text", "automatically generated")
+		} else {
+			articleSummary, err := ConvertToPlain(article.Summary)
+			if err != nil {
+				return nil, fmt.Errorf("error converting description to plain text for Atom feed: %v", err)
+			}
+			entry.Summary = atom.NewText("text", articleSummary)
+		}
+
+		if len(article.BannerLink) > 0 {
+			linkID := entry.AddLink(atom.NewLink(c.Domain + "/image/serve/" + article.BannerLink))
+			entry.Links[linkID].Rel = "enclosure"
+			entry.Links[linkID].Type = "image/webp"
+		}
+
+		authors, err := db.GetArticleAuthors(c, article.ID)
+		if err != nil {
+			return nil, fmt.Errorf("error getting article's authors for Atom feed: %v", err)
+		}
+		for _, author := range authors {
+			user, err := db.GetUser(c, author.ID)
+			if err != nil {
+				return nil, fmt.Errorf("error getting user info for Atom feed: %v", err)
+			}
+
+			authorID := entry.AddAuthor(atom.NewPerson(user.FirstName + " " + user.LastName))
+			entry.Authors[authorID].URI = c.Domain + "/image/serve/" + user.ProfilePicLink
+		}
+
+		contributors, err := db.GetArticleContributors(c, article.ID)
+		if err != nil {
+			return nil, fmt.Errorf("error getting article's contributors for Atom feed: %v", err)
+		}
+		for _, contributor := range contributors {
+			user, err := db.GetUser(c, contributor.ID)
+			if err != nil {
+				return nil, fmt.Errorf("error getting user info for Atom feed: %v", err)
+			}
+
+			contributorID := entry.AddContributor(atom.NewPerson(user.FirstName + " " + user.LastName))
+			entry.Contributors[contributorID].URI = c.Domain + "/image/serve/" + user.ProfilePicLink
 		}
-		entry.Summary = atom.NewText("text", articleSummary)
 
 		tags, err := db.GetArticleTags(article.ID)
 		if err != nil {

cmd/backend/config.go

@@ -12,58 +12,55 @@ import (
 )
 
 type Config struct {
-	AESKeyFile      string
+	AESKeyFile        string
-	ArticleDir      string
+	ArticleDir        string
-	ConfigFile      string
+	AtomFile          string
-	DBName          string
+	ConfigFile        string
-	Description     string
+	DBName            string
-	Domain          string
+	Description       string
-	AtomFile        string
+	Domain            string
-	FirebaseKey     string
+	FirebaseKey       string
-	GOBKeyFile      string
+	ImgDir            string
-	Link            string
+	Link              string
-	LogFile         string
+	LogFile           string
-	PDFDir          string
+	PDFDir            string
-	PicsDir         string
+	Port              string
-	Port            string
+	Title             string
-	Title           string
+	Version           string
-	Version         string
+	WebDir            string
-	WebDir          string
+	CookieExpiryHours int
-	MaxBannerHeight int
+	MaxBannerHeight   int
-	MaxBannerWidth  int
+	MaxBannerWidth    int
-	MaxImgHeight    int
+	MaxImgHeight      int
-	MaxImgWidth     int
+	MaxImgWidth       int
 }
 
 func newConfig() *Config {
 	return &Config{
-		AESKeyFile:      "/var/www/cpolis/aes.key",
+		AESKeyFile:        "/var/www/cpolis/aes.key",
-		ArticleDir:      "/var/www/cpolis/articles",
+		ArticleDir:        "/var/www/cpolis/articles",
-		AtomFile:        "/var/www/cpolis/cpolis.atom",
+		AtomFile:          "/var/www/cpolis/cpolis.atom",
-		ConfigFile:      "/etc/cpolis/config.toml",
+		ConfigFile:        "/etc/cpolis/config.toml",
-		DBName:          "cpolis",
+		CookieExpiryHours: 24 * 30,
-		FirebaseKey:     "/var/www/cpolis/serviceAccountKey.json",
+		DBName:            "cpolis",
-		GOBKeyFile:      "/var/www/cpolis/gob.key",
+		FirebaseKey:       "/etc/cpolis/serviceAccountKey.json",
-		LogFile:         "/var/log/cpolis.log",
+		ImgDir:            "/var/www/cpolis/images",
-		MaxBannerHeight: 1080,
+		LogFile:           "/var/log/cpolis.log",
-		MaxBannerWidth:  1920,
+		MaxBannerHeight:   1080,
-		MaxImgHeight:    1080,
+		MaxBannerWidth:    1920,
-		MaxImgWidth:     1920,
+		MaxImgHeight:      1080,
-		PDFDir:          "/var/www/cpolis/pdfs",
+		MaxImgWidth:       1920,
-		PicsDir:         "/var/www/cpolis/pics",
+		PDFDir:            "/var/www/cpolis/pdfs",
-		Port:            ":8080",
+		Port:              ":1664",
-		Version:         "v0.13.2",
+		Version:           "v0.16.0",
-		WebDir:          "/var/www/cpolis/web",
+		WebDir:            "/var/www/cpolis/web",
 	}
 }
 
 func mkDir(path string, perm fs.FileMode) (string, error) {
-	var err error
+	name := filepath.Base(path)
 
-	stringSlice := strings.Split(path, "/")
+	path, err := filepath.Abs(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)
 	}
@@ -82,20 +79,20 @@ func mkFile(path string, filePerm, dirPerm fs.FileMode) (string, error) {
 		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], "/")
+		dir := filepath.Dir(path)
 		if err = os.MkdirAll(dir, dirPerm); err != nil {
 			return "", fmt.Errorf("error creating %v: %v", dir, err)
 		}
 
-		fileName := stringSlice[len(stringSlice)-1]
+		fileName := filepath.Base(path)
-		file, err := os.Create(dir + "/" + fileName)
+		file, err := os.Create(filepath.Join(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)
 		}
@@ -116,13 +113,13 @@ func (c *Config) handleCliArgs() error {
 	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.GOBKeyFile, "gob", c.GOBKeyFile, "gob key file")
+	flag.StringVar(&c.ImgDir, "pics", c.ImgDir, "pictures directory")
 	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.Title, "title", c.Title, "channel title")
 	flag.StringVar(&c.WebDir, "web", c.WebDir, "web directory")
+	flag.IntVar(&c.CookieExpiryHours, "cookie-expiry-hours", c.CookieExpiryHours, "cookies expire after this amount of hours")
 	flag.IntVar(&c.MaxBannerHeight, "banner-height", c.MaxBannerHeight, "maximum banner height")
 	flag.IntVar(&c.MaxBannerWidth, "banner-width", c.MaxBannerWidth, "maximum banner width")
 	flag.IntVar(&c.MaxImgHeight, "img-height", c.MaxImgHeight, "maximum image height")
@@ -158,6 +155,10 @@ func (c *Config) setupConfig(cliConfig *Config) error {
 	if cliConfig.AESKeyFile != defaultConfig.AESKeyFile {
 		c.AESKeyFile = cliConfig.AESKeyFile
 	}
+	c.AESKeyFile, err = filepath.Abs(c.AESKeyFile)
+	if err != nil {
+		return fmt.Errorf("error setting absolute filepath for AESKeyFile: %v", err)
+	}
 	c.AESKeyFile, err = mkFile(c.AESKeyFile, 0600, 0700)
 	if err != nil {
 		return fmt.Errorf("error setting up file: %v", err)
@@ -166,11 +167,31 @@ func (c *Config) setupConfig(cliConfig *Config) error {
 	if cliConfig.ArticleDir != defaultConfig.ArticleDir {
 		c.ArticleDir = cliConfig.ArticleDir
 	}
+	c.ArticleDir, err = filepath.Abs(c.ArticleDir)
+	if err != nil {
+		return fmt.Errorf("error setting absolute filepath for ArticleDir: %v", err)
+	}
 	c.ArticleDir, err = mkDir(c.ArticleDir, 0700)
 	if err != nil {
 		return fmt.Errorf("error setting up directory: %v", err)
 	}
 
+	if cliConfig.AtomFile != defaultConfig.AtomFile {
+		c.AtomFile = cliConfig.AtomFile
+	}
+	c.AtomFile, err = filepath.Abs(c.AtomFile)
+	if err != nil {
+		return fmt.Errorf("error setting absolute filepath for AtomFile: %v", err)
+	}
+	c.AtomFile, err = mkFile(c.AtomFile, 0644, 0744)
+	if err != nil {
+		return fmt.Errorf("error setting up file: %v", err)
+	}
+
+	if cliConfig.CookieExpiryHours != defaultConfig.CookieExpiryHours {
+		c.CookieExpiryHours = cliConfig.CookieExpiryHours
+	}
+
 	if cliConfig.DBName != defaultConfig.DBName {
 		c.DBName = cliConfig.DBName
 	}
@@ -182,33 +203,33 @@ func (c *Config) setupConfig(cliConfig *Config) error {
 	if cliConfig.Domain != defaultConfig.Domain {
 		c.Domain = cliConfig.Domain
 	}
-	domainStrings := strings.Split(c.Domain, "/")
+	domainStrings := strings.Split(c.Domain, ":")
-	if domainStrings[0] != "http:" && domainStrings[0] != "https:" {
+	if domainStrings[0] != "http" && domainStrings[0] != "https" {
 		c.Domain = "https://" + c.Domain
 	}
 
-	if cliConfig.AtomFile != defaultConfig.AtomFile {
-		c.AtomFile = cliConfig.AtomFile
-	}
-	c.AtomFile, err = mkFile(c.AtomFile, 0644, 0744)
-	if err != nil {
-		return fmt.Errorf("error setting up file: %v", err)
-	}
-
 	if cliConfig.FirebaseKey != defaultConfig.FirebaseKey {
 		c.FirebaseKey = cliConfig.FirebaseKey
 	}
+	c.FirebaseKey, err = filepath.Abs(c.FirebaseKey)
+	if err != nil {
+		return fmt.Errorf("error setting absolute filepath for FirebaseKey: %v", err)
+	}
 	c.FirebaseKey, err = mkFile(c.FirebaseKey, 0600, 0700)
 	if err != nil {
 		return fmt.Errorf("error setting up file: %v", err)
 	}
 
-	if cliConfig.GOBKeyFile != defaultConfig.GOBKeyFile {
+	if cliConfig.ImgDir != defaultConfig.ImgDir {
-		c.GOBKeyFile = cliConfig.GOBKeyFile
+		c.ImgDir = cliConfig.ImgDir
 	}
-	c.GOBKeyFile, err = mkFile(c.GOBKeyFile, 0600, 0700)
+	c.ImgDir, err = filepath.Abs(c.ImgDir)
 	if err != nil {
-		return fmt.Errorf("error setting up file: %v", err)
+		return fmt.Errorf("error setting absolute filepath for PicsDir: %v", err)
+	}
+	c.ImgDir, err = mkDir(c.ImgDir, 0700)
+	if err != nil {
+		return fmt.Errorf("error setting up directory: %v", err)
 	}
 
 	if cliConfig.Link != defaultConfig.Link {
@@ -218,6 +239,10 @@ func (c *Config) setupConfig(cliConfig *Config) error {
 	if cliConfig.LogFile != defaultConfig.LogFile {
 		c.LogFile = cliConfig.LogFile
 	}
+	c.LogFile, err = filepath.Abs(c.LogFile)
+	if err != nil {
+		return fmt.Errorf("error setting absolute filepath for LogFile: %v", err)
+	}
 	c.LogFile, err = mkFile(c.LogFile, 0600, 0700)
 	if err != nil {
 		return fmt.Errorf("error setting up file: %v", err)
@@ -242,15 +267,11 @@ func (c *Config) setupConfig(cliConfig *Config) error {
 	if cliConfig.PDFDir != defaultConfig.PDFDir {
 		c.PDFDir = cliConfig.PDFDir
 	}
-	c.PDFDir, err = mkDir(c.PDFDir, 0700)
+	c.PDFDir, err = filepath.Abs(c.PDFDir)
 	if err != nil {
-		return fmt.Errorf("error setting up directory: %v", err)
+		return fmt.Errorf("error setting absolute filepath for PDFDir: %v", err)
 	}
-
+	c.PDFDir, err = mkDir(c.PDFDir, 0700)
-	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)
 	}
@@ -266,6 +287,10 @@ func (c *Config) setupConfig(cliConfig *Config) error {
 	if cliConfig.WebDir != defaultConfig.WebDir {
 		c.WebDir = cliConfig.WebDir
 	}
+	c.WebDir, err = filepath.Abs(c.WebDir)
+	if err != nil {
+		return fmt.Errorf("error setting absolute filepath for WebDir: %v", err)
+	}
 	c.WebDir, err = mkDir(c.WebDir, 0700)
 	if err != nil {
 		return fmt.Errorf("error setting up directory: %v", err)

cmd/backend/docx.go

@@ -0,0 +1,57 @@
+package backend
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+
+	"github.com/google/uuid"
+)
+
+func ConvertToMarkdown(c *Config, filename string) ([]byte, error) {
+	var stderr bytes.Buffer
+
+	tmpDir, err := os.MkdirTemp(os.TempDir(), "cpolis_images")
+	if err != nil {
+		return nil, fmt.Errorf("error creating temporary directory: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	articleFileName := filepath.Join(os.TempDir(), fmt.Sprint(uuid.New(), ".md"))
+	cmd := exec.Command("pandoc", "-s", "-f", "docx", "-t", "commonmark_x", "-o", articleFileName, "--extract-media", tmpDir, filename) // TODO: Is writing to a file necessary?
+	cmd.Stderr = &stderr
+	if err = cmd.Run(); err != nil {
+		return nil, fmt.Errorf("error converting docx to markdown: %v: %v", err, stderr.String())
+	}
+	defer os.Remove(articleFileName)
+
+	articleContent, err := os.ReadFile(articleFileName)
+	if err != nil {
+		return nil, fmt.Errorf("error reading markdown file: %v", err)
+	}
+
+	imageNames, err := filepath.Glob(filepath.Join(tmpDir, "/media/*"))
+	if err != nil {
+		return nil, fmt.Errorf("error getting docx images from temporary directory: %v", err)
+	}
+
+	for _, name := range imageNames {
+		image, err := os.Open(name)
+		if err != nil {
+			return nil, fmt.Errorf("error opening image file %v: %v", name, err)
+		}
+		defer image.Close()
+
+		newImageName, err := SaveImage(image, c.MaxImgHeight, c.MaxImgWidth, c.ImgDir)
+		if err != nil {
+			return nil, fmt.Errorf("error saving image %v: %v", name, err)
+		}
+
+		articleContent = regexp.MustCompile(name).ReplaceAll(articleContent, []byte(c.Domain+"/image/serve/"+newImageName))
+	}
+
+	return articleContent, nil
+}

cmd/backend/images.go

@@ -1,11 +1,14 @@
 package backend
 
 import (
-	"encoding/base64"
+	"bufio"
 	"fmt"
 	"image"
 	"io"
+	"io/fs"
 	"os"
+	"path/filepath"
+	"strings"
 
 	"github.com/chai2010/webp"
 	"github.com/disintegration/imaging"
@@ -31,7 +34,7 @@ func SaveImage(src io.Reader, maxHeight, maxWidth int, path string) (string, err
 	}
 
 	filename := fmt.Sprint(uuid.New(), ".webp")
-	file, err := os.Create(path + filename)
+	file, err := os.Create(filepath.Join(path, filename))
 	if err != nil {
 		return "", fmt.Errorf("error creating new image file: %v", err)
 	}
@@ -44,19 +47,67 @@ func SaveImage(src io.Reader, maxHeight, maxWidth int, path string) (string, err
 	return filename, nil
 }
 
-func ServeBase64Image(c *Config, filename string) (string, error) {
+func CleanUpImages(c *Config, db *DB) error {
-	file := c.PicsDir + "/" + filename
+	if err := filepath.Walk(c.ImgDir, func(path string, info fs.FileInfo, err error) error {
+		if err != nil {
+			return fmt.Errorf("error walking images filepath: %v", err)
+		}
 
-	img, err := os.Open(file)
+		if !info.IsDir() {
-	if err != nil {
+			imageName := info.Name()
-		return "", fmt.Errorf("error opening file %v: %v", file, err)
+			imagePath := path
-	}
+			imageWasFound := false
-	defer img.Close()
 
-	imgBytes, err := io.ReadAll(img)
+			if err = filepath.Walk(c.ArticleDir, func(path string, info fs.FileInfo, err error) error {
-	if err != nil {
+				if err != nil {
-		return "", fmt.Errorf("error turning %v into bytes: %v", file, err)
+					return fmt.Errorf("error walking articles filepath: %v", err)
+				}
+
+				if !info.IsDir() {
+					mdFile, err := os.Open(path)
+					if err != nil {
+						return fmt.Errorf("error opening article %v: %v", info.Name(), err)
+					}
+					defer mdFile.Close()
+
+					scanner := bufio.NewScanner(mdFile)
+
+					for scanner.Scan() {
+						if strings.Contains(scanner.Text(), imageName) {
+							imageWasFound = true
+						}
+					}
+
+					return scanner.Err()
+				}
+
+				return nil
+			}); err != nil {
+				return fmt.Errorf("error walking articles filepath: %v", err)
+			}
+
+			users, err := db.GetAllUsers(c)
+			if err != nil {
+				return fmt.Errorf("error getting all users: %v", err)
+			}
+
+			for _, user := range users {
+				if imageName == user.ProfilePicLink {
+					imageWasFound = true
+				}
+			}
+
+			if !imageWasFound {
+				if err = os.Remove(imagePath); err != nil {
+					return fmt.Errorf("error removing unused image: %v", err)
+				}
+			}
+		}
+
+		return nil
+	}); err != nil {
+		return fmt.Errorf("error cleaning up: %v", err)
 	}
 
-	return base64.StdEncoding.EncodeToString(imgBytes), nil
+	return nil
 }

cmd/backend/sessions.go

@@ -1,63 +0,0 @@
-package backend
-
-import (
-	"crypto/rand"
-	"encoding/gob"
-	"fmt"
-	"io"
-	"os"
-
-	"github.com/gorilla/sessions"
-)
-
-type (
-	CookieStore struct{ sessions.CookieStore }
-	Session     struct{ sessions.Session }
-)
-
-func NewKey() ([]byte, error) {
-	key := make([]byte, 32)
-
-	if _, err := io.ReadFull(rand.Reader, key); err != nil {
-		return nil, fmt.Errorf("error generating key: %v", err)
-	}
-
-	return key, nil
-}
-
-func SaveKey(key []byte, filename string) error {
-	file, err := os.Create(filename)
-	if err != nil {
-		return fmt.Errorf("error creating key file: %v", err)
-	}
-	defer file.Close()
-	file.Chmod(0600)
-
-	if err = gob.NewEncoder(file).Encode(key); err != nil {
-		return fmt.Errorf("error ecoding key: %v", err)
-	}
-
-	return nil
-}
-
-func LoadKey(filename string) ([]byte, error) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return nil, fmt.Errorf("error opening key file: %v", err)
-	}
-	defer file.Close()
-
-	key := make([]byte, 32)
-	if err = gob.NewDecoder(file).Decode(&key); err != nil {
-		return nil, fmt.Errorf("error decoding key: %v", err)
-	}
-
-	return key, nil
-}
-
-func NewCookieStore(key []byte) *CookieStore {
-	store := sessions.NewCookieStore(key)
-	store.Options.Secure = true
-	store.Options.HttpOnly = true
-	return &CookieStore{*store}
-}

cmd/backend/users.go

@@ -149,11 +149,11 @@ func (db *DB) AddUser(c *Config, u *User, pass string) (int64, error) {
 	}
 
 	query := `
-    INSERT INTO users (username, password, first_name, last_name, email, role)
+    INSERT INTO users (username, password, first_name, last_name, email, profile_pic_link, role)
-    VALUES (?, ?, ?, ?, ?, ?)
+    VALUES (?, ?, ?, ?, ?, ?, ?)
     `
 
-	result, err := db.Exec(query, u.UserName, string(hashedPass), aesFirstName, aesLastName, aesEmail, u.Role)
+	result, err := db.Exec(query, u.UserName, string(hashedPass), aesFirstName, aesLastName, aesEmail, u.ProfilePicLink, u.Role)
 	if err != nil {
 		return 0, fmt.Errorf("error inserting new user %v into DB: %v", u.UserName, err)
 	}
@@ -253,13 +253,13 @@ func (db *DB) GetUser(c *Config, id int64) (*User, error) {
 
 	user := new(User)
 	query := `
-    SELECT id, username, first_name, last_name, email, role
+    SELECT id, username, first_name, last_name, email, profile_pic_link, role
     FROM users
     WHERE id = ?
     `
 
 	row := db.QueryRow(query, id)
-	if err := row.Scan(&user.ID, &user.UserName, &aesFirstName, &aesLastName, &aesEmail, &user.Role); err != nil {
+	if err := row.Scan(&user.ID, &user.UserName, &aesFirstName, &aesLastName, &aesEmail, &user.ProfilePicLink, &user.Role); err != nil {
 		return nil, fmt.Errorf("error reading user information: %v", err)
 	}
 
@@ -281,10 +281,10 @@ func (db *DB) GetUser(c *Config, id int64) (*User, error) {
 	return user, nil
 }
 
-func (db *DB) UpdateOwnUserAttributes(c *Config, id int64, userName, firstName, lastName, email, oldPass, newPass string) error {
+func (db *DB) UpdateOwnUserAttributes(c *Config, id int64, userName, firstName, lastName, email, profilePicLink, oldPass, newPass string) error {
 	var err error
 	tx := new(Tx)
-	passwordEmpty := len(newPass) > 0
+	passwordEmpty := len(newPass) == 0
 
 	for i := 0; i < TxMaxRetries; i++ {
 		err := func() error {
@@ -331,6 +331,7 @@ func (db *DB) UpdateOwnUserAttributes(c *Config, id int64, userName, firstName,
 				&Attribute{Table: "users", ID: id, AttName: "first_name", Value: aesFirstName},
 				&Attribute{Table: "users", ID: id, AttName: "last_name", Value: aesLastName},
 				&Attribute{Table: "users", ID: id, AttName: "email", Value: aesEmail},
+				&Attribute{Table: "users", ID: id, AttName: "profile_pic_link", Value: profilePicLink},
 			); err != nil {
 				if rollbackErr := tx.Rollback(); rollbackErr != nil {
 					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
@@ -360,8 +361,8 @@ func (db *DB) AddFirstUser(c *Config, u *User, pass string) (int64, error) {
 	txOptions := &sql.TxOptions{Isolation: sql.LevelSerializable}
 	selectQuery := "SELECT COUNT(*) FROM users"
 	insertQuery := `
-    INSERT INTO users (username, password, first_name, last_name, email, role)
+    INSERT INTO users (username, password, first_name, last_name, email, profile_pic_link, role)
-    VALUES (?, ?, ?, ?, ?, ?)
+    VALUES (?, ?, ?, ?, ?, ?, ?)
     `
 
 	for i := 0; i < TxMaxRetries; i++ {
@@ -416,7 +417,7 @@ func (db *DB) AddFirstUser(c *Config, u *User, pass string) (int64, error) {
 				return 0, fmt.Errorf("error encrypting email: %v", err)
 			}
 
-			result, err := tx.Exec(insertQuery, u.UserName, string(hashedPass), aesFirstName, aesLastName, aesEmail, u.Role)
+			result, err := tx.Exec(insertQuery, u.UserName, string(hashedPass), aesFirstName, aesLastName, aesEmail, u.ProfilePicLink, u.Role)
 			if err != nil {
 				if rollbackErr := tx.Rollback(); rollbackErr != nil {
 					log.Fatalf("transaction error: %v, rollback error: %v", err, rollbackErr)
@@ -447,11 +448,50 @@ func (db *DB) AddFirstUser(c *Config, u *User, pass string) (int64, error) {
 	return 0, fmt.Errorf("error: %v unsuccessful retries for DB operation, aborting", TxMaxRetries)
 }
 
-func (db *DB) GetAllUsers(c *Config) (map[int64]*User, error) {
+func (db *DB) GetAllUsers(c *Config) ([]*User, error) {
 	var aesFirstName, aesLastName, aesEmail string
 	var err error
 
-	query := "SELECT id, username, first_name, last_name, email, role FROM users"
+	query := "SELECT id, username, first_name, last_name, email, profile_pic_link, 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([]*User, 0)
+	for rows.Next() {
+		user := new(User)
+		if err = rows.Scan(&user.ID, &user.UserName, &aesFirstName, &aesLastName, &aesEmail, &user.ProfilePicLink, &user.Role); err != nil {
+			return nil, fmt.Errorf("error getting user info: %v", err)
+		}
+
+		user.FirstName, err = aesDecrypt(c, aesFirstName)
+		if err != nil {
+			return nil, fmt.Errorf("error decrypting first name: %v", err)
+		}
+
+		user.LastName, err = aesDecrypt(c, aesLastName)
+		if err != nil {
+			return nil, fmt.Errorf("error decrypting last name: %v", err)
+		}
+
+		user.Email, err = aesDecrypt(c, aesEmail)
+		if err != nil {
+			return nil, fmt.Errorf("error decrypting email: %v", err)
+		}
+
+		users = append(users, user)
+	}
+
+	return users, nil
+}
+
+func (db *DB) GetAllUsersMap(c *Config) (map[int64]*User, error) {
+	var aesFirstName, aesLastName, aesEmail string
+	var err error
+
+	query := "SELECT id, username, first_name, last_name, email, profile_pic_link, role FROM users"
 
 	rows, err := db.Query(query)
 	if err != nil {
@@ -461,7 +501,7 @@ func (db *DB) GetAllUsers(c *Config) (map[int64]*User, error) {
 	users := make(map[int64]*User, 0)
 	for rows.Next() {
 		user := new(User)
-		if err = rows.Scan(&user.ID, &user.UserName, &aesFirstName, &aesLastName, &aesEmail, &user.Role); err != nil {
+		if err = rows.Scan(&user.ID, &user.UserName, &aesFirstName, &aesLastName, &aesEmail, &user.ProfilePicLink, &user.Role); err != nil {
 			return nil, fmt.Errorf("error getting user info: %v", err)
 		}
 
@@ -506,10 +546,10 @@ func (tx *Tx) SetPassword(id int64, newPass string) error {
 	return nil
 }
 
-func (db *DB) UpdateUserAttributes(c *Config, id int64, userName, firstName, lastName, email, newPass string, role int) error {
+func (db *DB) UpdateUserAttributes(c *Config, id int64, userName, firstName, lastName, email, profilePicLink, newPass string, role int) error {
 	var err error
 	tx := new(Tx)
-	passwordEmpty := len(newPass) > 0
+	passwordEmpty := len(newPass) == 0
 
 	for i := 0; i < TxMaxRetries; i++ {
 		err := func() error {
@@ -556,6 +596,7 @@ func (db *DB) UpdateUserAttributes(c *Config, id int64, userName, firstName, las
 				&Attribute{Table: "users", ID: id, AttName: "first_name", Value: aesFirstName},
 				&Attribute{Table: "users", ID: id, AttName: "last_name", Value: aesLastName},
 				&Attribute{Table: "users", ID: id, AttName: "email", Value: aesEmail},
+				&Attribute{Table: "users", ID: id, AttName: "profile_pic_link", Value: profilePicLink},
 				&Attribute{Table: "users", ID: id, AttName: "role", Value: role},
 			); err != nil {
 				if rollbackErr := tx.Rollback(); rollbackErr != nil {

cmd/calls/articles.go

@@ -5,26 +5,48 @@ import (
 	"log"
 	"net/http"
 	"os"
-	"strconv"
+	"path/filepath"
 
+	"github.com/google/uuid"
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
+func incrementClicks(db *b.DB, a *b.Article) error {
+	a.Clicks++
+	if err := db.UpdateAttributes(&b.Attribute{Table: "articles", ID: a.ID, AttName: "clicks", Value: a.Clicks}); err != nil {
+		return fmt.Errorf("error updating click attribute of article %v: %v", a.ID, err)
+	}
+
+	if a.IsInIssue {
+		issue, err := db.GetArticle(a.IssueID)
+		if err != nil {
+			return fmt.Errorf("error getting issue %v: %v", a.IssueID, err)
+		}
+
+		issue.Clicks++
+		if err := db.UpdateAttributes(&b.Attribute{Table: "articles", ID: issue.ID, AttName: "clicks", Value: issue.Clicks}); err != nil {
+			return fmt.Errorf("error updating click attribute of issue %v: %v", issue.ID, err)
+		}
+	}
+
+	return nil
+}
+
 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")
+		uuidString := r.PathValue("uuid")
-		id, err := strconv.ParseInt(idString, 10, 64)
+		uuid, err := uuid.Parse(uuidString)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		article, err := db.GetArticle(id)
+		article, err := db.GetArticleByUUID(uuid)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -35,8 +57,8 @@ func ServeArticle(c *b.Config, db *b.DB) http.HandlerFunc {
 			return
 		}
 
-		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		articlePath := filepath.Join(c.ArticleDir, fmt.Sprint(article.UUID, ".md"))
-		contentBytes, err := os.ReadFile(articleAbsName)
+		contentBytes, err := os.ReadFile(articlePath)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -50,6 +72,40 @@ func ServeArticle(c *b.Config, db *b.DB) http.HandlerFunc {
 			return
 		}
 
-		fmt.Fprint(w, content)
+		if err = incrementClicks(db, article); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if _, err = fmt.Fprint(w, content); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}
+
+func ServeClicks(db *b.DB) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		uuid, err := uuid.Parse(r.PathValue("uuid"))
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article, err := db.GetArticleByUUID(uuid)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if _, err = fmt.Fprint(w, article.Clicks); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
 	}
 }

cmd/calls/atom.go

@@ -1,9 +1,7 @@
 package calls
 
 import (
-	"log"
 	"net/http"
-	"path/filepath"
 
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
@@ -14,13 +12,6 @@ func ServeAtomFeed(c *b.Config) http.HandlerFunc {
 			return
 		}
 
-		absFilepath, err := filepath.Abs(c.AtomFile)
+		http.ServeFile(w, r, c.AtomFile)
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		http.ServeFile(w, r, absFilepath)
 	}
 }

cmd/calls/images.go

@@ -1,26 +1,21 @@
 package calls
 
 import (
-	"log"
 	"net/http"
 	"path/filepath"
 
 	b "streifling.com/jason/cpolis/cmd/backend"
+	f "streifling.com/jason/cpolis/cmd/frontend"
 )
 
-func ServeImage(c *b.Config) http.HandlerFunc {
+func ServeImage(c *b.Config, s map[string]*f.Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if !tokenIsVerified(w, r, c) {
+		if _, err := f.ValidateSession(w, r, c, s); err != nil {
-			return
+			if !tokenIsVerified(w, r, c) {
+				return
+			}
 		}
 
-		absFilepath, err := filepath.Abs(c.PicsDir)
+		http.ServeFile(w, r, filepath.Join(c.ImgDir, r.PathValue("pic")))
-		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

@@ -5,6 +5,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"path/filepath"
 
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
@@ -42,6 +43,6 @@ func ServePDF(c *b.Config) http.HandlerFunc {
 			return
 		}
 
-		http.ServeFile(w, r, c.PDFDir+"/"+r.PathValue("id"))
+		http.ServeFile(w, r, filepath.Join(c.PDFDir, r.PathValue("id")))
 	}
 }

cmd/frontend/articles.go

@@ -6,10 +6,12 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
 
+	"github.com/google/uuid"
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
@@ -18,34 +20,63 @@ const (
 	PreviewMode
 )
 
+const (
+	None = iota
+	Author
+	Contributor
+)
+
+type ArticleUser struct {
+	*b.User
+	ArticleRole int
+}
+
 type EditorHTMLData struct {
 	Selected     map[int64]bool
 	Content      string
 	Action       string
 	ActionTitle  string
 	ActionButton string
-	BannerImage  string
+	Image        string
 	HTMLContent  template.HTML
 	Article      *b.Article
 	Tags         []*b.Tag
+	ArticleUsers map[string]*ArticleUser // A map is way more efficient in ReviewRejectedArticle()
+	Creator      *ArticleUser
+	Authors      []*b.User
+	Contributors []*b.User
 }
 
-func WriteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func WriteArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
+		if err != nil {
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
+			return
+		}
+
+		users, err := db.GetAllUsers(c)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		var data *EditorHTMLData
+		data := &EditorHTMLData{Action: "submit", Article: new(b.Article), ArticleUsers: make(map[string]*ArticleUser)}
-		if session.Values["article"] == nil {
+		for _, user := range users {
-			data = &EditorHTMLData{Action: "submit", Article: new(b.Article)}
+			data.ArticleUsers[fmt.Sprint(user.LastName, user.FirstName, user.ID)] = &ArticleUser{User: user, ArticleRole: None}
-		} else {
-			data = session.Values["article"].(*EditorHTMLData)
 		}
 
+		creator, err := db.GetUser(c, session.User.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Creator = data.ArticleUsers[fmt.Sprint(creator.LastName, creator.FirstName, creator.ID)]
+		data.Creator.ArticleRole = Author
+		delete(data.ArticleUsers, fmt.Sprint(creator.LastName, creator.FirstName, creator.ID))
+
 		data.Tags, err = db.GetTagList()
 		if err != nil {
 			log.Println(err)
@@ -53,7 +84,7 @@ func WriteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/editor.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "editor.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -62,19 +93,11 @@ func WriteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func SubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func SubmitArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		session.Values["article"] = nil
-		if err = session.Save(r, w); err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -82,26 +105,56 @@ func SubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			Title:         r.PostFormValue("article-title"),
 			BannerLink:    r.PostFormValue("article-banner-url"),
 			Summary:       r.PostFormValue("article-summary"),
+			CreatorID:     session.User.ID,
 			Published:     false,
 			Rejected:      false,
-			AuthorID:      session.Values["id"].(int64),
 			IsInIssue:     r.PostFormValue("issue") == "on",
 			AutoGenerated: false,
+			EditedID:      0,
+			UUID:          uuid.New(),
 		}
 
 		if len(article.Title) == 0 {
 			http.Error(w, "Bitte den Titel eingeben.", http.StatusBadRequest)
 			return
 		}
-		if len(article.BannerLink) == 0 {
-			http.Error(w, "Bitte ein Titelbild einfügen.", http.StatusBadRequest)
-			return
-		}
 		if len(article.Summary) == 0 {
 			http.Error(w, "Bitte die Beschreibung eingeben.", http.StatusBadRequest)
 			return
 		}
 
+		r.ParseForm()
+		authors := make([]int64, 0)
+		contributors := make([]int64, 0)
+
+		for key, values := range r.Form {
+			if strings.HasPrefix(key, "user-") && len(values) > 0 {
+				id, err := strconv.ParseInt(strings.Split(key, "-")[1], 10, 64)
+				if err != nil {
+					log.Println(err)
+					http.Error(w, err.Error(), http.StatusBadRequest)
+					return
+				}
+
+				switch values[0] {
+				case "author":
+					authors = append(authors, id)
+				case "contributor":
+					contributors = append(contributors, id)
+				}
+			}
+		}
+
+		if r.PostFormValue("creator") == "author" {
+			authors = append(authors, article.CreatorID)
+		} else {
+			contributors = append(contributors, article.CreatorID)
+		}
+		if len(authors) == 0 {
+			http.Error(w, "Es muss mindestens einen Autor geben.", http.StatusBadRequest)
+			return
+		}
+
 		article.ID, err = db.AddArticle(article)
 		if err != nil {
 			log.Println(err)
@@ -114,30 +167,34 @@ func SubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			http.Error(w, "Bitte den Artikel eingeben.", http.StatusBadRequest)
 			return
 		}
-
+		if err := b.WriteArticleToFile(c, article.UUID, content); err != nil {
-		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
-		if err = os.WriteFile(articleAbsName, content, 0644); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		article.ContentLink = fmt.Sprint(c.Domain, "/article/serve/", article.ID)
+		if err = db.WriteArticleAuthors(article.ID, authors); err != nil {
-		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "content_link", Value: article.ContentLink}); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
+		if len(contributors) > 0 {
+			if err = db.WriteArticleContributors(article.ID, contributors); 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)
+				http.Error(w, err.Error(), http.StatusBadRequest)
 				return
 			}
+
 			tags = append(tags, tagID)
 		}
 		if err = db.WriteArticleTags(article.ID, tags); err != nil {
@@ -147,9 +204,9 @@ func SubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -159,12 +216,11 @@ func SubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func ResubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func ResubmitArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -175,43 +231,97 @@ func ResubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		title := r.PostFormValue("article-title")
+		article, err := db.GetArticle(id)
-		if len(title) == 0 {
+		if err != nil {
-			http.Error(w, "Bitte den Titel eingeben.", http.StatusBadRequest)
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		summary := r.PostFormValue("article-summary")
+		article.Title = r.PostFormValue("article-title")
-		if len(summary) == 0 {
+		article.BannerLink = r.PostFormValue("article-banner-url")
+		article.Summary = r.PostFormValue("article-summary")
+		article.CreatorID = session.User.ID
+		article.IsInIssue = r.PostFormValue("issue") == "on"
+
+		if len(article.Title) == 0 {
+			http.Error(w, "Bitte den Titel eingeben.", http.StatusBadRequest)
+			return
+		}
+		if len(article.Summary) == 0 {
 			http.Error(w, "Bitte die Beschreibung eingeben.", http.StatusBadRequest)
 			return
 		}
 
+		r.ParseForm()
+		authors := make([]int64, 0)
+		contributors := make([]int64, 0)
+
+		for key, values := range r.Form {
+			if strings.HasPrefix(key, "user-") && len(values) > 0 {
+				id, err := strconv.ParseInt(strings.Split(key, "-")[1], 10, 64)
+				if err != nil {
+					log.Println(err)
+					http.Error(w, err.Error(), http.StatusBadRequest)
+					return
+				}
+
+				switch values[0] {
+				case "author":
+					authors = append(authors, id)
+				case "contributor":
+					contributors = append(contributors, id)
+				}
+			}
+		}
+
+		if r.PostFormValue("creator") == "author" {
+			authors = append(authors, article.CreatorID)
+		} else {
+			contributors = append(contributors, article.CreatorID)
+		}
+		if len(authors) == 0 {
+			http.Error(w, "Es muss mindestens einen Autor geben.", http.StatusBadRequest)
+			return
+		}
+
 		content := r.PostFormValue("article-content")
 		if len(content) == 0 {
 			http.Error(w, "Bitte den Artikel eingeben.", http.StatusBadRequest)
 			return
 		}
 
-		contentLink := fmt.Sprint(c.ArticleDir, "/", id, ".md")
+		if err = b.WriteArticleToFile(c, article.UUID, []byte(content)); err != nil {
-		if err = os.WriteFile(contentLink, []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: article.ID, AttName: "title", Value: article.Title},
-			&b.Attribute{Table: "articles", ID: id, AttName: "summary", Value: summary},
+			&b.Attribute{Table: "articles", ID: article.ID, AttName: "banner_link", Value: article.BannerLink},
-			&b.Attribute{Table: "articles", ID: id, AttName: "rejected", Value: false},
+			&b.Attribute{Table: "articles", ID: article.ID, AttName: "summary", Value: article.Summary},
-			&b.Attribute{Table: "articles", ID: id, AttName: "is_in_issue", Value: r.PostFormValue("issue") == "on"},
+			&b.Attribute{Table: "articles", ID: article.ID, AttName: "rejected", Value: false},
+			&b.Attribute{Table: "articles", ID: article.ID, AttName: "is_in_issue", Value: article.IsInIssue},
 		); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		r.ParseForm()
+		if err = db.UpdateArticleAuthors(article.ID, authors); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		if len(contributors) > 0 {
+			if err = db.UpdateArticleContributors(article.ID, contributors); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		}
+
 		tags := make([]int64, 0)
 		for _, tag := range r.Form["tags"] {
 			tagID, err := strconv.ParseInt(tag, 10, 64)
@@ -222,16 +332,16 @@ func ResubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			}
 			tags = append(tags, tagID)
 		}
-		if err = db.UpdateArticleTags(id, tags); err != nil {
+		if err = db.UpdateArticleTags(article.ID, tags); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -241,11 +351,10 @@ func ResubmitArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func ShowUnpublishedUnrejectedAndPublishedRejectedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func ShowUnpublishedUnrejectedAndPublishedRejectedArticles(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -276,7 +385,7 @@ func ShowUnpublishedUnrejectedAndPublishedRejectedArticles(c *b.Config, db *b.DB
 			}
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/unpublished-articles.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "unpublished-articles.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", articles); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -285,12 +394,11 @@ func ShowUnpublishedUnrejectedAndPublishedRejectedArticles(c *b.Config, db *b.DB
 	}
 }
 
-func ShowRejectedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func ShowRejectedArticles(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -308,12 +416,12 @@ func ShowRejectedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerF
 
 		data.MyIDs = make(map[int64]bool)
 		for _, article := range data.RejectedArticles {
-			if article.AuthorID == session.Values["id"].(int64) {
+			if article.CreatorID == session.User.ID {
 				data.MyIDs[article.ID] = true
 			}
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/rejected-articles.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "rejected-articles.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -323,11 +431,11 @@ func ShowRejectedArticles(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerF
 	}
 }
 
-func ReviewRejectedArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func ReviewRejectedArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		session, err := ManageSession(w, r, c, s)
-			log.Println(err)
+		if err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
 			return
 		}
 
@@ -346,17 +454,10 @@ func ReviewRejectedArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.Handler
 			return
 		}
 
-		imgURL := strings.Split(data.Article.BannerLink, "/")
+		data.Image = data.Article.BannerLink
-		imgFileName := imgURL[len(imgURL)-1]
-		data.BannerImage, err = b.ServeBase64Image(c, imgFileName)
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
 
-		articleAbsName := fmt.Sprint(c.ArticleDir, "/", data.Article.ID, ".md")
+		articlePath := filepath.Join(c.ArticleDir, fmt.Sprint(data.Article.UUID, ".md"))
-		content, err := os.ReadFile(articleAbsName)
+		content, err := os.ReadFile(articlePath)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -371,6 +472,46 @@ func ReviewRejectedArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.Handler
 			return
 		}
 
+		data.ArticleUsers = make(map[string]*ArticleUser)
+		users, err := db.GetAllUsers(c)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		for _, user := range users {
+			data.ArticleUsers[fmt.Sprint(user.LastName, user.FirstName, user.ID)] = &ArticleUser{User: user, ArticleRole: None}
+		}
+
+		authors, err := db.GetArticleAuthors(c, data.Article.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		for _, author := range authors {
+			data.ArticleUsers[fmt.Sprint(author.LastName, author.FirstName, author.ID)].ArticleRole = Author
+		}
+
+		contributors, err := db.GetArticleContributors(c, data.Article.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		for _, contributor := range contributors {
+			data.ArticleUsers[fmt.Sprint(contributor.LastName, contributor.FirstName, contributor.ID)].ArticleRole = Contributor
+		}
+
+		creator, err := db.GetUser(c, session.User.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		data.Creator = data.ArticleUsers[fmt.Sprint(creator.LastName, creator.FirstName, creator.ID)]
+		delete(data.ArticleUsers, fmt.Sprint(creator.LastName, creator.FirstName, creator.ID))
+
 		selectedTags, err := db.GetArticleTags(id)
 		if err != nil {
 			log.Println(err)
@@ -384,7 +525,7 @@ func ReviewRejectedArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.Handler
 
 		data.Action = fmt.Sprint("resubmit/", data.Article.ID)
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/editor.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "editor.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -394,12 +535,11 @@ func ReviewRejectedArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.Handler
 	}
 }
 
-func PublishArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func PublishArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -424,9 +564,9 @@ func PublishArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		if err = db.UpdateAttributes(
-			&b.Attribute{Table: "articles", ID: id, AttName: "published", Value: true},
+			&b.Attribute{Table: "articles", ID: article.ID, AttName: "published", Value: true},
-			&b.Attribute{Table: "articles", ID: id, AttName: "rejected", Value: false},
+			&b.Attribute{Table: "articles", ID: article.ID, AttName: "rejected", Value: false},
-			&b.Attribute{Table: "articles", ID: id, AttName: "created", Value: time.Now().Format("2006-01-02 15:04:05")},
+			&b.Attribute{Table: "articles", ID: article.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)
@@ -447,16 +587,13 @@ func PublishArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 				return
 			}
 
-			if err = os.Remove(fmt.Sprint(c.ArticleDir, "/", oldArticle.ID, ".md")); err != nil {
+			if err = os.Remove(filepath.Join(c.ArticleDir, fmt.Sprint(oldArticle.UUID, ".md"))); err != nil {
 				log.Println(err)
 				http.Error(w, err.Error(), http.StatusInternalServerError)
 				return
 			}
 
-			if err = db.UpdateAttributes(
+			if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "edited_id", Value: 0}); err != nil {
-				&b.Attribute{Table: "articles", ID: id, AttName: "content_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
@@ -476,9 +613,9 @@ func PublishArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -488,12 +625,11 @@ func PublishArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func RejectArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func RejectArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -511,9 +647,9 @@ func RejectArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -523,11 +659,10 @@ func RejectArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func ShowCurrentIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func ShowCurrentIssue(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -538,7 +673,7 @@ func ShowCurrentIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc
 			return
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/current-issue.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "current-issue.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", articles); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -547,11 +682,10 @@ func ShowCurrentIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc
 	}
 }
 
-func ShowPublishedArticles(c *b.Config, db *b.DB, s *b.CookieStore, action string) http.HandlerFunc {
+func ShowPublishedArticles(c *b.Config, db *b.DB, s map[string]*Session, action string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -574,7 +708,7 @@ func ShowPublishedArticles(c *b.Config, db *b.DB, s *b.CookieStore, action strin
 			}
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/published-articles.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "published-articles.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -584,11 +718,10 @@ func ShowPublishedArticles(c *b.Config, db *b.DB, s *b.CookieStore, action strin
 	}
 }
 
-func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, button string) http.HandlerFunc {
+func ReviewArticle(c *b.Config, db *b.DB, s map[string]*Session, action, title, button string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -623,14 +756,7 @@ func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, butto
 			return
 		}
 
-		imgURL := strings.Split(article.BannerLink, "/")
+		data.Image = article.BannerLink
-		imgFileName := imgURL[len(imgURL)-1]
-		data.BannerImage, err = b.ServeBase64Image(c, imgFileName)
-		if err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
 
 		data.Article.Summary, err = b.ConvertToPlain(article.Summary)
 		if err != nil {
@@ -639,8 +765,8 @@ func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, butto
 			return
 		}
 
-		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		articlePath := filepath.Join(c.ArticleDir, fmt.Sprint(article.UUID, ".md"))
-		content, err := os.ReadFile(articleAbsName)
+		content, err := os.ReadFile(articlePath)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -654,6 +780,22 @@ func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, butto
 		}
 		data.HTMLContent = template.HTML(data.Content)
 
+		data.Authors, err = db.GetArticleAuthors(c, data.Article.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		sortUsersByName(data.Authors)
+
+		data.Contributors, err = db.GetArticleContributors(c, data.Article.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		sortUsersByName(data.Contributors)
+
 		data.Tags, err = db.GetArticleTags(id)
 		if err != nil {
 			log.Println(err)
@@ -661,7 +803,7 @@ func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, butto
 			return
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/review-article.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "review-article.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -670,16 +812,22 @@ func ReviewArticle(c *b.Config, db *b.DB, s *b.CookieStore, action, title, butto
 	}
 }
 
-func DeleteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func DeleteArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
+		if err != nil {
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
+			return
+		}
+
+		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		id, err := strconv.ParseInt(r.PathValue("id"), 10, 64)
+		article, err := db.GetArticle(id)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -692,12 +840,19 @@ func DeleteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		if err = os.Remove(fmt.Sprint(c.ArticleDir, "/", id, ".md")); err != nil {
+		if err = os.Remove(filepath.Join(c.ArticleDir, fmt.Sprint(article.UUID, ".md"))); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
+		go func(c *b.Config, db *b.DB) {
+			if err = b.CleanUpImages(c, db); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+			}
+		}(c, db)
+
 		feed, err := b.GenerateAtomFeed(c, db)
 		if err != nil {
 			log.Println(err)
@@ -711,9 +866,9 @@ func DeleteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -723,12 +878,11 @@ func DeleteArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func AllowEditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func AllowEditArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -746,34 +900,68 @@ func AllowEditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc
 			return
 		}
 
-		newArticle := oldArticle
+		newArticle := *oldArticle
 		newArticle.Published = false
 		newArticle.Rejected = true
 		newArticle.EditedID = oldArticle.ID
 
-		newID, err := db.AddArticle(newArticle)
+		newArticle.ID, 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 {
+		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: oldArticle.ID, AttName: "edited_id", Value: newArticle.ID}); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		if err = b.CopyFile(fmt.Sprint(c.ArticleDir, "/", oldID, ".md"), fmt.Sprint(c.ArticleDir, "/", newID, ".md")); err != nil {
+		src := filepath.Join(c.ArticleDir, fmt.Sprint(oldArticle.UUID, ".md"))
+		dst := filepath.Join(c.ArticleDir, fmt.Sprint(newArticle.UUID, ".md"))
+		if err = b.CopyFile(src, dst); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		authors, err := db.GetArticleAuthors(c, oldArticle.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		authorIDs := make([]int64, len(authors))
+		for i, author := range authors {
+			authorIDs[i] = author.ID
+		}
+		if err = db.WriteArticleAuthors(newArticle.ID, authorIDs); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		contributors, err := db.GetArticleContributors(c, oldArticle.ID)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		contributorIDs := make([]int64, len(contributors))
+		for i, contributor := range contributors {
+			contributorIDs[i] = contributor.ID
+		}
+		if err = db.WriteArticleContributors(newArticle.ID, contributorIDs); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl := template.Must(template.ParseFiles(c.WebDir + "/templates/hub.html"))
+		tmpl := template.Must(template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html")))
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -782,11 +970,10 @@ func AllowEditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc
 	}
 }
 
-func EditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func EditArticle(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -806,16 +993,9 @@ func EditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		imgURL := strings.Split(data.Article.BannerLink, "/")
+		data.Image = data.Article.BannerLink
-		imgFileName := imgURL[len(imgURL)-1]
-		data.BannerImage, err = b.ServeBase64Image(c, imgFileName)
-		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"))
+		content, err := os.ReadFile(filepath.Join(c.ArticleDir, fmt.Sprint(data.Article.UUID, ".md")))
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -843,7 +1023,7 @@ func EditArticle(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 
 		data.Action = fmt.Sprint("save/", data.Article.ID)
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/editor.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "editor.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)

cmd/frontend/docx.go

@@ -0,0 +1,93 @@
+package frontend
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/gabriel-vasile/mimetype"
+	"github.com/google/uuid"
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func UploadDocx(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := ManageSession(w, r, c, s)
+		if err != nil {
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
+			return
+		}
+
+		file, fileHeader, err := r.FormFile("docx-upload")
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer file.Close()
+
+		var buf bytes.Buffer
+		if _, err = io.Copy(&buf, file); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		mime := mimetype.Detect(buf.Bytes())
+		if !mime.Is("application/vnd.openxmlformats-officedocument.wordprocessingml.document") {
+			http.Error(w, "Die Datei ist kein DOCX Worddokument.", http.StatusBadRequest)
+			return
+		}
+
+		docxFilepath := filepath.Join(os.TempDir(), fmt.Sprint(uuid.New(), ".docx"))
+		if err = os.WriteFile(docxFilepath, buf.Bytes(), 0644); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer os.Remove(docxFilepath)
+
+		mdString, err := b.ConvertToMarkdown(c, docxFilepath)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		uuidName := uuid.New()
+		mdFilepath := filepath.Join(c.ArticleDir, fmt.Sprint(uuidName, ".md"))
+		if err = os.WriteFile(mdFilepath, mdString, 0644); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		article := &b.Article{
+			Created:   time.Now(),
+			UUID:      uuidName,
+			CreatorID: session.User.ID,
+			Rejected:  true,
+		}
+		article.Title = fmt.Sprint(fileHeader.Filename, "-", article.UUID)
+
+		id, err := db.AddArticle(article)
+		if err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		if err = db.WriteArticleAuthors(id, []int64{session.User.ID}); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+	}
+}

cmd/frontend/homepage.go

@@ -0,0 +1,100 @@
+package frontend
+
+import (
+	"html/template"
+	"log"
+	"net/http"
+	"path/filepath"
+	"time"
+
+	b "streifling.com/jason/cpolis/cmd/backend"
+)
+
+func HomePage(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		numRows, err := db.CountEntries("users")
+		if err != nil {
+			log.Fatalln(err)
+		}
+
+		data := new(struct {
+			*UserHTMLData
+			Version string
+		})
+		data.UserHTMLData = &UserHTMLData{User: new(b.User)}
+		data.Version = c.Version
+
+		files := make([]string, 2)
+		files[0] = filepath.Join(c.WebDir, "templates", "index.html")
+		if numRows == 0 {
+			data.Role = b.NonExistent
+			data.Title = "Erster Benutzer (Administrator)"
+			data.ButtonText = "Anlegen"
+			data.URL = "/user/add-first"
+
+			files[1] = filepath.Join(c.WebDir, "templates", "edit-user.html")
+			tmpl, err := template.ParseFiles(files...)
+			if err = template.Must(tmpl, err).Execute(w, data); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		} else {
+			cookie, err := r.Cookie("cpolis_session")
+			if err != nil {
+				files[1] = filepath.Join(c.WebDir, "templates", "login.html")
+				tmpl, err := template.ParseFiles(files...)
+				if err = template.Must(tmpl, err).Execute(w, data); err != nil {
+					log.Println(err)
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+					return
+				}
+				return
+			}
+
+			session, ok := s[cookie.Value]
+			if !ok {
+				cookie.Expires = time.Now()
+				http.SetCookie(w, cookie)
+
+				files[1] = filepath.Join(c.WebDir, "templates", "login.html")
+				tmpl, err := template.ParseFiles(files...)
+				if err = template.Must(tmpl, err).Execute(w, data); err != nil {
+					log.Println(err)
+					http.Error(w, err.Error(), http.StatusInternalServerError)
+					return
+				}
+				return
+			}
+
+			data.Role = session.User.Role
+			files[1] = filepath.Join(c.WebDir, "templates", "hub.html")
+			tmpl, err := template.ParseFiles(files...)
+			if err = template.Must(tmpl, err).Execute(w, data); err != nil {
+				log.Println(err)
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		}
+	}
+}
+
+func ShowHub(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, err := ManageSession(w, r, c, s)
+		if err != nil {
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
+			return
+		}
+
+		data := new(struct{ Role int })
+		data.Role = session.User.Role
+
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
+		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}

cmd/frontend/images.go

@@ -5,15 +5,15 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"path/filepath"
 
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
-func UploadImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+func UploadEasyMDEImage(c *b.Config, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -25,7 +25,7 @@ func UploadImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
 		}
 		defer file.Close()
 
-		filename, err := b.SaveImage(file, c.MaxImgHeight, c.MaxImgWidth, c.PicsDir+"/")
+		filename, err := b.SaveImage(file, c.MaxImgHeight, c.MaxImgWidth, c.ImgDir)
 		if err != nil {
 			if err == b.ErrUnsupportedFormat {
 				http.Error(w, "Das Dateiformat wird nicht unterstützt.", http.StatusBadRequest)
@@ -42,11 +42,10 @@ func UploadImage(c *b.Config, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func UploadBanner(c *b.Config, s *b.CookieStore, fileKey, htmlFile, htmlTemplate string) http.HandlerFunc {
+func UploadImage(c *b.Config, s map[string]*Session, fileKey, htmlFile, htmlTemplate string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -58,7 +57,7 @@ func UploadBanner(c *b.Config, s *b.CookieStore, fileKey, htmlFile, htmlTemplate
 		}
 		defer file.Close()
 
-		filename, err := b.SaveImage(file, c.MaxBannerHeight, c.MaxBannerWidth, c.PicsDir+"/")
+		filename, err := b.SaveImage(file, c.MaxBannerHeight, c.MaxBannerWidth, c.ImgDir)
 		if err != nil {
 			if err == b.ErrUnsupportedFormat {
 				http.Error(w, "Das Dateiformat wird nicht unterstützt.", http.StatusBadRequest)
@@ -69,22 +68,10 @@ func UploadBanner(c *b.Config, s *b.CookieStore, fileKey, htmlFile, htmlTemplate
 			return
 		}
 
-		base64Img, err := b.ServeBase64Image(c, filename)
+		data := new(struct{ Image string })
-		if err != nil {
+		data.Image = filename
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
 
-		data := new(struct {
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", htmlFile))
-			BannerImage string
-			URL         string
-		})
-
-		data.BannerImage = base64Img
-		data.URL = c.Domain + "/image/serve/" + filename
-
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/" + htmlFile)
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, htmlTemplate, data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)

cmd/frontend/issues.go

@@ -6,24 +6,18 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"path/filepath"
 	"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 {
+func PublishLatestIssue(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		session.Values["article"] = nil
-		if err = session.Save(r, w); err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -33,18 +27,14 @@ func PublishLatestIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFun
 			Published:     true,
 			Rejected:      false,
 			Created:       time.Now(),
-			AuthorID:      session.Values["id"].(int64),
 			AutoGenerated: true,
+			UUID:          uuid.New(),
 		}
 
 		if len(article.Title) == 0 {
 			http.Error(w, "Bitte den Titel eingeben.", http.StatusBadRequest)
 			return
 		}
-		if len(article.BannerLink) == 0 {
-			http.Error(w, "Bitte ein Titelbild einfügen.", http.StatusBadRequest)
-			return
-		}
 
 		article.ID, err = db.AddArticle(article)
 		if err != nil {
@@ -53,27 +43,23 @@ func PublishLatestIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFun
 			return
 		}
 
+		authorIDs := make([]int64, 1)
+		authorIDs[0] = session.User.ID
+
+		if err = db.WriteArticleAuthors(article.ID, authorIDs); err != nil {
+			log.Println(err)
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
 		content := []byte(r.PostFormValue("issue-content"))
 		if len(content) == 0 {
 			http.Error(w, "Bitte eine Beschreibung eingeben.", http.StatusBadRequest)
 			return
 		}
 
-		articleAbsName := fmt.Sprint(c.ArticleDir, "/", article.ID, ".md")
+		articlePath := filepath.Join(c.ArticleDir, fmt.Sprint(article.UUID, ".md"))
-		if err = os.WriteFile(articleAbsName, content, 0644); err != nil {
+		if err = os.WriteFile(articlePath, content, 0644); err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		article.ContentLink = fmt.Sprint(c.Domain, "/article/serve/", article.ID)
-		if err = db.UpdateAttributes(&b.Attribute{Table: "articles", ID: article.ID, AttName: "content_link", Value: article.ContentLink}); 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: "content_link", Value: article.ContentLink}); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -103,17 +89,10 @@ func PublishLatestIssue(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFun
 			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
-		}
-
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)

cmd/frontend/pdf.go

@@ -5,20 +5,20 @@ import (
 	"log"
 	"net/http"
 	"path/filepath"
+	"strings"
 
 	"github.com/google/uuid"
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
-func UploadPDF(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+func UploadPDF(c *b.Config, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		file, _, err := r.FormFile("pdf-upload")
+		file, header, err := r.FormFile("pdf-upload")
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -44,15 +44,11 @@ func UploadPDF(c *b.Config, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		filename := fmt.Sprint(uuid.New(), ".pdf")
+		oldFilename := strings.Join(strings.Split(header.Filename, ".")[:len(header.Filename)-1], ".")
-		absFilepath, err := filepath.Abs(c.PDFDir + "/" + filename)
+		filename := fmt.Sprint(oldFilename, ".", uuid.New(), ".pdf")
-		if err != nil {
+		filepath := filepath.Join(c.PDFDir, filename)
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
 
-		if err = b.WriteFile(absFilepath, file); err != nil {
+		if err = b.WriteFile(filepath, file); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return

cmd/frontend/sessions.go

@@ -1,107 +1,111 @@
 package frontend
 
 import (
+	"context"
+	"errors"
 	"fmt"
 	"html/template"
 	"log"
 	"net/http"
+	"path/filepath"
+	"time"
 
+	"github.com/google/uuid"
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
-func saveSession(w http.ResponseWriter, r *http.Request, s *b.CookieStore, u *b.User) error {
+type Session struct {
-	session, err := s.Get(r, "cookie")
+	ctx    context.Context
-	if err != nil {
+	cancel context.CancelFunc
-		return fmt.Errorf("error getting session: %v", err)
+	cookie *http.Cookie
-	}
+	User   *b.User
-
-	session.Values["authenticated"] = true
-	session.Values["id"] = u.ID
-	session.Values["name"] = u.FirstName + u.LastName
-	session.Values["role"] = u.Role
-	if err := session.Save(r, w); err != nil {
-		return fmt.Errorf("error saving session: %v", err)
-	}
-
-	return nil
 }
 
-// getSession is used for verifying that the user is logged in and returns their session and an error.
+func newSession(w http.ResponseWriter, c *b.Config, sessionExpiryChan chan<- string, user *b.User) *Session {
-func getSession(w http.ResponseWriter, r *http.Request, c *b.Config, s *b.CookieStore) (*b.Session, error) {
+	sessionID := uuid.New().String()
-	msg := "Keine gültige Session. Bitte erneut anmelden."
+	expires := time.Now().Add(time.Hour * time.Duration(c.CookieExpiryHours))
-	tmpl, tmplErr := template.ParseFiles(c.WebDir+"/templates/index.html", c.WebDir+"/templates/login.html")
+	ctx, cancel := context.WithDeadline(context.Background(), expires)
 
-	tmpSession, err := s.Get(r, "cookie")
+	session := &Session{
-	if err != nil {
+		ctx:    ctx,
-		if err = template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", msg); err != nil {
+		cancel: cancel,
-			return nil, fmt.Errorf("error executing template: %v", err)
+		cookie: &http.Cookie{
-		}
+			Name:     "cpolis_session",
-		return nil, fmt.Errorf("error getting session: %v", err)
+			Value:    sessionID,
+			Expires:  expires,
+			Path:     "/",
+			HttpOnly: true,
+			Secure:   true,
+			SameSite: http.SameSiteStrictMode,
+		},
+		User: user,
 	}
 
-	session := &b.Session{Session: *tmpSession}
+	go func() {
-	if session.IsNew {
+		<-session.ctx.Done()
-		if err = template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", msg); err != nil {
+		sessionExpiryChan <- session.cookie.Value
-			return nil, fmt.Errorf("error executing template: %v", err)
+		session.cookie.Expires = time.Now()
+		http.SetCookie(w, session.cookie)
+	}()
+
+	return session
+}
+
+func StartSessions() (map[string]*Session, chan string) {
+	sessions := make(map[string]*Session)
+	sessionExpiryChan := make(chan string)
+
+	go func() {
+		for sessionID := range sessionExpiryChan {
+			delete(sessions, sessionID)
 		}
+	}()
+
+	return sessions, sessionExpiryChan
+}
+
+// ValidateSession is used for verifying that the user is logged in and returns
+// their session and an error.
+func ValidateSession(w http.ResponseWriter, r *http.Request, c *b.Config, s map[string]*Session) (*Session, error) {
+	cookie, err := r.Cookie("cpolis_session")
+	if err != nil {
+		return nil, errors.New("no cookie set")
+	}
+
+	session, ok := s[cookie.Value]
+	if !ok {
+		return nil, errors.New("session does not exist")
 	}
 
 	return session, nil
 }
 
-func HomePage(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+// ManageSession is used for verifying that the user is logged in and returns
-	return func(w http.ResponseWriter, r *http.Request) {
+// their session and an error. It also handles cases where the user is not
-		numRows, err := db.CountEntries("users")
+// logged in.
-		if err != nil {
+func ManageSession(w http.ResponseWriter, r *http.Request, c *b.Config, s map[string]*Session) (*Session, error) {
-			log.Fatalln(err)
+	session, err := ValidateSession(w, r, c, s)
+	if err != nil {
+		if session.cookie != nil {
+			session.cookie.Expires = time.Now()
+			http.SetCookie(w, session.cookie)
 		}
 
-		data := new(struct {
+		tmpl, tmplErr := template.ParseFiles(filepath.Join(c.WebDir, "templates", "index.html"), filepath.Join(c.WebDir, "templates", "login.html"))
-			Version string
+		if err = template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", nil); err != nil {
-			Role    int
+			return nil, fmt.Errorf("error executing template: %v", err)
-		})
-		data.Version = c.Version
-
-		files := make([]string, 2)
-		files[0] = c.WebDir + "/templates/index.html"
-		if numRows == 0 {
-			files[1] = c.WebDir + "/templates/first-user.html"
-			tmpl, err := template.ParseFiles(files...)
-			if err = template.Must(tmpl, err).Execute(w, data); err != nil {
-				log.Println(err)
-				http.Error(w, err.Error(), http.StatusInternalServerError)
-				return
-			}
-		} else {
-			session, err := s.Get(r, "cookie")
-			if err != nil {
-				log.Println(err)
-				http.Error(w, err.Error(), http.StatusInternalServerError)
-				return
-			}
-			if auth, ok := session.Values["authenticated"].(bool); auth && ok {
-				data.Role = session.Values["role"].(int)
-				files[1] = c.WebDir + "/templates/hub.html"
-				tmpl, err := template.ParseFiles(files...)
-				if err = template.Must(tmpl, err).Execute(w, data); err != nil {
-					log.Println(err)
-					http.Error(w, err.Error(), http.StatusInternalServerError)
-					return
-				}
-			} else {
-				files[1] = c.WebDir + "/templates/login.html"
-				tmpl, err := template.ParseFiles(files...)
-				if err = template.Must(tmpl, err).Execute(w, data); err != nil {
-					log.Println(err)
-					http.Error(w, err.Error(), http.StatusInternalServerError)
-					return
-				}
-			}
 		}
+
+		return nil, err
 	}
+
+	session.cookie.Expires = time.Now().Add(time.Hour * time.Duration(c.CookieExpiryHours))
+	http.SetCookie(w, session.cookie)
+
+	return session, nil
 }
 
-func Login(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func Login(c *b.Config, db *b.DB, s map[string]*Session, sessionExpiryChan chan string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		userName := r.PostFormValue("username")
 		password := r.PostFormValue("password")
@@ -125,13 +129,11 @@ func Login(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		if err := saveSession(w, r, s, user); err != nil {
+		session := newSession(w, c, sessionExpiryChan, user)
-			log.Println(err)
+		s[session.cookie.Value] = session
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+		http.SetCookie(w, session.cookie)
-			return
-		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", user); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -140,52 +142,32 @@ func Login(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func Logout(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+func Logout(c *b.Config, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		tmpl, tmplErr := template.ParseFiles(filepath.Join(c.WebDir, "templates", "login.html"))
+
+		cookie, err := r.Cookie("cpolis_session")
 		if err != nil {
-			log.Println(err)
+			if err = template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", nil); err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+				log.Println(err)
-			return
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
 		}
+		cookie.Expires = time.Now()
+		http.SetCookie(w, cookie)
 
-		session.Options.MaxAge = -1
+		session, ok := s[cookie.Value]
-		if err = session.Save(r, w); err != nil {
+		if !ok {
-			log.Println(err)
+			if err = template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", nil); err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+				log.Println(err)
-			return
+				http.Error(w, err.Error(), http.StatusInternalServerError)
+				return
+			}
 		}
+		session.cancel()
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/login.html")
+		if err = template.Must(tmpl, tmplErr).ExecuteTemplate(w, "page-content", nil); err != nil {
-		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil); err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-	}
-}
-
-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 {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		session.Values["article"] = nil
-		if err = session.Save(r, w); err != nil {
-			log.Println(err)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
-
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
-		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return

cmd/frontend/tags.go

@@ -4,19 +4,19 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"path/filepath"
 
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
-func CreateTag(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+func CreateTag(c *b.Config, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-tag.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "add-tag.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -25,12 +25,11 @@ func CreateTag(c *b.Config, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func AddTag(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func AddTag(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -42,9 +41,9 @@ func AddTag(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		db.AddTag(tag)
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)

cmd/frontend/users.go

@@ -5,11 +5,21 @@ import (
 	"html/template"
 	"log"
 	"net/http"
+	"path/filepath"
+	"sort"
 	"strconv"
 
 	b "streifling.com/jason/cpolis/cmd/backend"
 )
 
+type UserHTMLData struct {
+	*b.User
+	Title      string
+	ButtonText string
+	URL        string
+	Image      string
+}
+
 func checkUserStrings(user *b.User) (string, int, bool) {
 	userLen := 63 // max value for utf-8 at 255 bytes
 	nameLen := 56 // max value when aes encrypting utf-8 at up to 255 bytes
@@ -25,16 +35,31 @@ func checkUserStrings(user *b.User) (string, int, bool) {
 	}
 }
 
-func CreateUser(c *b.Config, s *b.CookieStore) http.HandlerFunc {
+func sortUsersByName(users []*b.User) {
+	sort.SliceStable(users, func(i, j int) bool {
+		if users[i].LastName == users[j].LastName {
+			return users[i].FirstName < users[j].FirstName
+		}
+		return users[i].LastName < users[j].LastName
+	})
+}
+
+func CreateUser(c *b.Config, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/add-user.html")
+		data := &UserHTMLData{
-		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", nil); err != nil {
+			User:       &b.User{Role: b.Author},
+			Title:      "Neuer Benutzer",
+			ButtonText: "Anlegen",
+			URL:        "/user/add",
+		}
+
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "edit-user.html"))
+		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -42,20 +67,20 @@ func CreateUser(c *b.Config, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func AddUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func AddUser(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
 		user := &b.User{
-			UserName:  r.PostFormValue("username"),
+			UserName:       r.PostFormValue("username"),
-			FirstName: r.PostFormValue("first-name"),
+			FirstName:      r.PostFormValue("first-name"),
-			LastName:  r.PostFormValue("last-name"),
+			LastName:       r.PostFormValue("last-name"),
-			Email:     r.PostFormValue("email"),
+			Email:          r.PostFormValue("email"),
+			ProfilePicLink: r.PostFormValue("profile-pic-url"),
 		}
 		pass := r.PostFormValue("password")
 		pass2 := r.PostFormValue("password2")
@@ -108,9 +133,9 @@ func AddUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -120,24 +145,31 @@ func AddUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func EditSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func EditSelf(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
+		if err != nil {
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
+			return
+		}
+
+		user, err := db.GetUser(c, session.User.ID)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
-		user, err := db.GetUser(c, session.Values["id"].(int64))
+		data := &UserHTMLData{
-		if err != nil {
+			User:       user,
-			log.Println(err)
+			Title:      "Mein Profil bearbeiten",
-			http.Error(w, err.Error(), http.StatusInternalServerError)
+			ButtonText: "Übernehmen",
-			return
+			URL:        "/user/update/self",
+			Image:      user.ProfilePicLink,
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-self.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "edit-user.html"))
-		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", user); err != nil {
+		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -145,21 +177,21 @@ func EditSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func UpdateSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func UpdateSelf(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
 		user := &b.User{
-			ID:        session.Values["id"].(int64),
+			ID:             session.User.ID,
-			UserName:  r.PostFormValue("username"),
+			UserName:       r.PostFormValue("username"),
-			FirstName: r.PostFormValue("first-name"),
+			FirstName:      r.PostFormValue("first-name"),
-			LastName:  r.PostFormValue("last-name"),
+			LastName:       r.PostFormValue("last-name"),
-			Email:     r.PostFormValue("email"),
+			Email:          r.PostFormValue("email"),
+			ProfilePicLink: r.PostFormValue("profile-pic-url"),
 		}
 
 		oldPass := r.PostFormValue("old-password")
@@ -202,16 +234,16 @@ func UpdateSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		if err = db.UpdateOwnUserAttributes(c, user.ID, user.UserName, user.FirstName, user.LastName, user.Email, oldPass, newPass); err != nil {
+		if err = db.UpdateOwnUserAttributes(c, user.ID, user.UserName, user.FirstName, user.LastName, user.Email, user.ProfilePicLink, oldPass, newPass); err != nil {
 			log.Println("error: user:", user.ID, err)
 			http.Error(w, "Benutzerdaten konnten nicht aktualisiert werden.", http.StatusInternalServerError)
 			return
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
@@ -221,15 +253,16 @@ func UpdateSelf(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func AddFirstUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func AddFirstUser(c *b.Config, db *b.DB, s map[string]*Session, sessionExpiryChan chan string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		var err error
 		user := &b.User{
-			UserName:  r.PostFormValue("username"),
+			UserName:       r.PostFormValue("username"),
-			FirstName: r.PostFormValue("first-name"),
+			FirstName:      r.PostFormValue("first-name"),
-			LastName:  r.PostFormValue("last-name"),
+			LastName:       r.PostFormValue("last-name"),
-			Email:     r.PostFormValue("email"),
+			Email:          r.PostFormValue("email"),
-			Role:      b.Admin,
+			ProfilePicLink: r.PostFormValue("profile-pic-url"),
+			Role:           b.Admin,
 		}
 		pass := r.PostFormValue("password")
 		pass2 := r.PostFormValue("password2")
@@ -267,22 +300,20 @@ func AddFirstUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		if err := saveSession(w, r, s, 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
 		}
 
-		data := new(struct{ Role int })
+		session := newSession(w, c, sessionExpiryChan, user)
-		data.Role = 0
+		s[session.cookie.Value] = session
+		http.SetCookie(w, session.cookie)
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		data := new(struct{ Role int })
+		data.Role = user.Role
+
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -291,12 +322,11 @@ func AddFirstUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func ShowAllUsers(c *b.Config, db *b.DB, s *b.CookieStore, action string) http.HandlerFunc {
+func ShowAllUsers(c *b.Config, db *b.DB, s map[string]*Session, action string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -306,15 +336,15 @@ func ShowAllUsers(c *b.Config, db *b.DB, s *b.CookieStore, action string) http.H
 		})
 
 		data.Action = action
-		data.Users, err = db.GetAllUsers(c)
+		data.Users, err = db.GetAllUsersMap(c)
 		if err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
+		delete(data.Users, session.User.ID)
 
-		delete(data.Users, session.Values["id"].(int64))
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "show-all-users.html"))
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/show-all-users.html")
 		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -323,11 +353,10 @@ func ShowAllUsers(c *b.Config, db *b.DB, s *b.CookieStore, action string) http.H
 	}
 }
 
-func EditUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func EditUser(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := getSession(w, r, c, s); err != nil {
+		if _, err := ManageSession(w, r, c, s); err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -345,8 +374,16 @@ func EditUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/edit-user.html")
+		data := &UserHTMLData{
-		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", user); err != nil {
+			User:       user,
+			Title:      "Profil von " + user.FirstName + " " + user.LastName + " bearbeiten",
+			ButtonText: "Übernehmen",
+			URL:        fmt.Sprint("/user/update/", user.ID),
+			Image:      user.ProfilePicLink,
+		}
+
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "edit-user.html"))
+		if err = template.Must(tmpl, err).ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -354,12 +391,11 @@ func EditUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func UpdateUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func UpdateUser(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -402,6 +438,8 @@ func UpdateUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
+		user.ProfilePicLink = r.PostFormValue("profile-pic-url")
+
 		newPass := r.PostFormValue("password")
 		newPass2 := r.PostFormValue("password2")
 		if newPass != newPass2 {
@@ -420,16 +458,16 @@ func UpdateUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 			return
 		}
 
-		if err = db.UpdateUserAttributes(c, user.ID, user.UserName, user.FirstName, user.LastName, user.Email, newPass, user.Role); err != nil {
+		if err = db.UpdateUserAttributes(c, user.ID, user.UserName, user.FirstName, user.LastName, user.Email, user.ProfilePicLink, newPass, user.Role); err != nil {
 			log.Println("error: user:", user.ID, err)
 			http.Error(w, "Benutzerdaten konnten nicht aktualisiert werden.", http.StatusInternalServerError)
 			return
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl := template.Must(template.ParseFiles(c.WebDir + "/templates/hub.html"))
+		tmpl := template.Must(template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html")))
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)
 			http.Error(w, err.Error(), http.StatusInternalServerError)
@@ -438,12 +476,11 @@ func UpdateUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 	}
 }
 
-func DeleteUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
+func DeleteUser(c *b.Config, db *b.DB, s map[string]*Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		session, err := getSession(w, r, c, s)
+		session, err := ManageSession(w, r, c, s)
 		if err != nil {
-			log.Println(err)
+			http.Error(w, "Die Session ist abgelaufen. Bitte erneut anmelden.", http.StatusUnauthorized)
-			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -461,9 +498,9 @@ func DeleteUser(c *b.Config, db *b.DB, s *b.CookieStore) http.HandlerFunc {
 		}
 
 		data := new(struct{ Role int })
-		data.Role = session.Values["role"].(int)
+		data.Role = session.User.Role
 
-		tmpl, err := template.ParseFiles(c.WebDir + "/templates/hub.html")
+		tmpl, err := template.ParseFiles(filepath.Join(c.WebDir, "templates", "hub.html"))
 		tmpl = template.Must(tmpl, err)
 		if err = tmpl.ExecuteTemplate(w, "page-content", data); err != nil {
 			log.Println(err)

cmd/main.go

@@ -1,20 +1,16 @@
 package main
 
 import (
-	"encoding/gob"
 	"log"
 	"net/http"
 	"os"
+	"time"
 
 	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 {
@@ -34,66 +30,69 @@ func main() {
 	}
 	defer db.Close()
 
-	key, err := b.LoadKey(config.GOBKeyFile)
+	sessions, sessionExpiryChan := f.StartSessions()
-	if err != nil {
+	defer close(sessionExpiryChan)
-		key, err = b.NewKey()
+
-		if err != nil {
+	go func(c *b.Config, db *b.DB) {
-			log.Fatalln(err)
+		for {
+			if err = b.CleanUpImages(c, db); err != nil {
+				log.Println(err)
+			}
+			time.Sleep(time.Hour * 24)
 		}
-		if err = b.SaveKey(key, config.GOBKeyFile); err != nil {
+	}(config, db)
-			log.Fatalln(err)
-		}
-	}
-	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("/", f.HomePage(config, db, sessions))
 
-	mux.HandleFunc("GET /article/allow-edit/{id}", f.AllowEditArticle(config, db, store))
+	mux.HandleFunc("GET /article/allow-edit/{id}", f.AllowEditArticle(config, db, sessions))
-	mux.HandleFunc("GET /article/all-published/review-edit", f.ShowPublishedArticles(config, db, store, "review-edit"))
+	mux.HandleFunc("GET /article/all-published/review-edit", f.ShowPublishedArticles(config, db, sessions, "review-edit"))
-	mux.HandleFunc("GET /article/all-published/delete", f.ShowPublishedArticles(config, db, store, "review-delete"))
+	mux.HandleFunc("GET /article/all-published/delete", f.ShowPublishedArticles(config, db, sessions, "review-delete"))
-	mux.HandleFunc("GET /article/all-rejected", f.ShowRejectedArticles(config, db, store))
+	mux.HandleFunc("GET /article/all-rejected", f.ShowRejectedArticles(config, db, sessions))
-	mux.HandleFunc("GET /article/all-unpublished-unrejected-and-published-rejected", f.ShowUnpublishedUnrejectedAndPublishedRejectedArticles(config, db, store))
+	mux.HandleFunc("GET /article/all-unpublished-unrejected-and-published-rejected", f.ShowUnpublishedUnrejectedAndPublishedRejectedArticles(config, db, sessions))
-	mux.HandleFunc("GET /article/delete/{id}", f.DeleteArticle(config, db, store))
+	mux.HandleFunc("GET /article/delete/{id}", f.DeleteArticle(config, db, sessions))
-	mux.HandleFunc("GET /article/edit/{id}", f.EditArticle(config, db, store))
+	mux.HandleFunc("GET /article/edit/{id}", f.EditArticle(config, db, sessions))
-	mux.HandleFunc("GET /article/publish/{id}", f.PublishArticle(config, db, store))
+	mux.HandleFunc("GET /article/publish/{id}", f.PublishArticle(config, db, sessions))
-	mux.HandleFunc("GET /article/reject/{id}", f.RejectArticle(config, db, store))
+	mux.HandleFunc("GET /article/reject/{id}", f.RejectArticle(config, db, sessions))
-	mux.HandleFunc("GET /article/review-delete/{id}", f.ReviewArticle(config, db, store, "delete", "Artikel löschen", "Löschen"))
+	mux.HandleFunc("GET /article/review-delete/{id}", f.ReviewArticle(config, db, sessions, "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-edit/{id}", f.ReviewArticle(config, db, sessions, "allow-edit", "Artikel bearbeiten", "Bearbeiten erlauben"))
-	mux.HandleFunc("GET /article/review-rejected/{id}", f.ReviewRejectedArticle(config, db, store))
+	mux.HandleFunc("GET /article/review-rejected/{id}", f.ReviewRejectedArticle(config, db, sessions))
-	mux.HandleFunc("GET /article/review-unpublished/{id}", f.ReviewArticle(config, db, store, "publish", "Artikel veröffentlichen", "Veröffentlichen"))
+	mux.HandleFunc("GET /article/review-unpublished/{id}", f.ReviewArticle(config, db, sessions, "publish", "Artikel veröffentlichen", "Veröffentlichen"))
-	mux.HandleFunc("GET /article/serve/{id}", c.ServeArticle(config, db))
+	mux.HandleFunc("GET /article/serve/{uuid}", c.ServeArticle(config, db))
-	mux.HandleFunc("GET /article/write", f.WriteArticle(config, db, store))
+	mux.HandleFunc("GET /article/serve/{uuid}/clicks", c.ServeClicks(db))
+	mux.HandleFunc("GET /article/write", f.WriteArticle(config, db, sessions))
 	mux.HandleFunc("GET /atom/serve", c.ServeAtomFeed(config))
-	mux.HandleFunc("GET /hub", f.ShowHub(config, db, store))
+	mux.HandleFunc("GET /hub", f.ShowHub(config, db, sessions))
-	mux.HandleFunc("GET /image/serve/{pic}", c.ServeImage(config))
+	mux.HandleFunc("GET /image/serve/{pic}", c.ServeImage(config, sessions))
-	mux.HandleFunc("GET /issue/this", f.ShowCurrentIssue(config, db, store))
+	mux.HandleFunc("GET /issue/this", f.ShowCurrentIssue(config, db, sessions))
-	mux.HandleFunc("GET /logout", f.Logout(config, store))
+	mux.HandleFunc("GET /logout", f.Logout(config, sessions))
 	mux.HandleFunc("GET /pdf/get-list", c.ServePDFList(config))
 	mux.HandleFunc("GET /pdf/serve/{id}", c.ServePDF(config))
-	mux.HandleFunc("GET /tag/create", f.CreateTag(config, store))
+	mux.HandleFunc("GET /tag/create", f.CreateTag(config, sessions))
-	mux.HandleFunc("GET /user/create", f.CreateUser(config, store))
+	mux.HandleFunc("GET /user/create", f.CreateUser(config, sessions))
-	mux.HandleFunc("GET /user/delete/{id}", f.DeleteUser(config, db, store))
+	mux.HandleFunc("GET /user/delete/{id}", f.DeleteUser(config, db, sessions))
-	mux.HandleFunc("GET /user/edit/{id}", f.EditUser(config, db, store))
+	mux.HandleFunc("GET /user/edit/{id}", f.EditUser(config, db, sessions))
-	mux.HandleFunc("GET /user/edit/self", f.EditSelf(config, db, store))
+	mux.HandleFunc("GET /user/edit/self", f.EditSelf(config, db, sessions))
-	mux.HandleFunc("GET /user/show-all/delete", f.ShowAllUsers(config, db, store, "delete"))
+	mux.HandleFunc("GET /user/show-all/delete", f.ShowAllUsers(config, db, sessions, "delete"))
-	mux.HandleFunc("GET /user/show-all/edit", f.ShowAllUsers(config, db, store, "edit"))
+	mux.HandleFunc("GET /user/show-all/edit", f.ShowAllUsers(config, db, sessions, "edit"))
 
-	mux.HandleFunc("POST /article/resubmit/{id}", f.ResubmitArticle(config, db, store))
+	mux.HandleFunc("POST /article/resubmit/{id}", f.ResubmitArticle(config, db, sessions))
-	mux.HandleFunc("POST /article/submit", f.SubmitArticle(config, db, store))
+	mux.HandleFunc("POST /article/submit", f.SubmitArticle(config, db, sessions))
-	mux.HandleFunc("POST /article/upload-banner", f.UploadBanner(config, store, "article-banner", "editor.html", "article-banner-template"))
+	mux.HandleFunc("POST /article/upload-banner", f.UploadImage(config, sessions, "article-banner", "editor.html", "article-banner-template"))
-	mux.HandleFunc("POST /article/upload-image", f.UploadImage(config, store))
+	mux.HandleFunc("POST /article/upload-image", f.UploadEasyMDEImage(config, sessions))
-	mux.HandleFunc("POST /issue/publish", f.PublishLatestIssue(config, db, store))
+	mux.HandleFunc("POST /docx/upload", f.UploadDocx(config, db, sessions))
-	mux.HandleFunc("POST /issue/upload-banner", f.UploadBanner(config, store, "issue-banner", "current-issue.html", "issue-banner-template"))
+	mux.HandleFunc("POST /issue/publish", f.PublishLatestIssue(config, db, sessions))
-	mux.HandleFunc("POST /login", f.Login(config, db, store))
+	mux.HandleFunc("POST /issue/upload-banner", f.UploadImage(config, sessions, "issue-banner", "current-issue.html", "issue-banner-template"))
-	mux.HandleFunc("POST /pdf/upload", f.UploadPDF(config, store))
+	mux.HandleFunc("POST /login", f.Login(config, db, sessions, sessionExpiryChan))
-	mux.HandleFunc("POST /tag/add", f.AddTag(config, db, store))
+	mux.HandleFunc("POST /pdf/upload", f.UploadPDF(config, sessions))
-	mux.HandleFunc("POST /user/add", f.AddUser(config, db, store))
+	mux.HandleFunc("POST /tag/add", f.AddTag(config, db, sessions))
-	mux.HandleFunc("POST /user/add-first", f.AddFirstUser(config, db, store))
+	mux.HandleFunc("POST /user/add", f.AddUser(config, db, sessions))
-	mux.HandleFunc("POST /user/update/{id}", f.UpdateUser(config, db, store))
+	mux.HandleFunc("POST /user/add-first", f.AddFirstUser(config, db, sessions, sessionExpiryChan))
-	mux.HandleFunc("POST /user/update/self", f.UpdateSelf(config, db, store))
+	mux.HandleFunc("POST /user/update/{id}", f.UpdateUser(config, db, sessions))
+	mux.HandleFunc("POST /user/update/self", f.UpdateSelf(config, db, sessions))
+	mux.HandleFunc("POST /user/upload-profile-pic", f.UploadImage(config, sessions, "upload-profile-pic", "edit-user.html", "profile-pic-template"))
 
 	log.Fatalln(http.ListenAndServe(config.Port, mux))
 }

cpolis.service

@@ -1,9 +1,14 @@
 [Unit]
 Description=cpolis
+After=network.target
 
 [Service]
 ExecStart=/usr/local/bin/cpolis
-Restart=on-failure
+User=cpolis
+Group=cpolis
+Restart=always
+RestartSec=2s
+Type=simple
 
 [Install]
-WantedBy=default.target
+WantedBy=multi-user.target

create_db.sql

@@ -1,55 +1,74 @@
 DROP TABLE IF EXISTS articles_tags;
+DROP TABLE IF EXISTS articles_contributors;
+DROP TABLE IF EXISTS articles_authors;
 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,
+    id INT AUTO_INCREMENT,
-    username            VARCHAR(255)    NOT NULL UNIQUE,
+    username VARCHAR(255) NOT NULL UNIQUE,
-    password            VARCHAR(60)     NOT NULL,
+    password VARCHAR(60) NOT NULL,
-    first_name          VARCHAR(255)    NOT NULL,
+    first_name VARCHAR(255) NOT NULL,
-    last_name           VARCHAR(255)    NOT NULL,
+    last_name VARCHAR(255) NOT NULL,
-    email               VARCHAR(255)    NOT NULL,
+    email VARCHAR(255) NOT NULL,
-    -- profile_pic_link    VARCHAR(255)    NOT NULL,
+    profile_pic_link VARCHAR(255),
-    role                INT             NOT NULL,
+    role INT NOT NULL,
     PRIMARY KEY (id)
 );
 
 CREATE TABLE issues (
-    id          INT     AUTO_INCREMENT,
+    id INT AUTO_INCREMENT,
-    published   BOOL    NOT NULL,
+    published BOOL NOT NULL,
     PRIMARY KEY (id)
 );
 
 CREATE TABLE articles (
-    id              INT             AUTO_INCREMENT,
+    id INT AUTO_INCREMENT,
-    title           VARCHAR(255)    NOT NULL,
+    title VARCHAR(255) NOT NULL,
-    created         TIMESTAMP       DEFAULT CURRENT_TIMESTAMP,
+    created TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-    banner_link     VARCHAR(255)    NOT NULL,
+    banner_link VARCHAR(255),
-    summary         TEXT            NOT NULL,
+    summary TEXT NOT NULL,
-    content_link    VARCHAR(255)    NOT NULL,
+    published BOOL NOT NULL,
-    published       BOOL            NOT NULL,
+    rejected BOOL NOT NULL,
-    rejected        BOOL            NOT NULL,
+    creator_id INT NOT NULL,
-    author_id       INT             NOT NULL,
+    issue_id INT NOT NULL,
-    issue_id        INT             NOT NULL,
+    edited_id INT NOT NULL,
-    edited_id       INT,
+    clicks INT NOT NULL,
-    is_in_issue     BOOL            NOT NULL,
+    is_in_issue BOOL NOT NULL,
-    auto_generated  BOOL            NOT NULL,
+    auto_generated BOOL NOT NULL,
+    uuid VARCHAR(36) NOT NULL,
     PRIMARY KEY (id),
-    FOREIGN KEY (author_id) REFERENCES users (id),
+    FOREIGN KEY (creator_id) REFERENCES users (id),
     FOREIGN KEY (issue_id) REFERENCES issues (id)
 );
 
 CREATE TABLE tags (
-    id      INT         AUTO_INCREMENT,
+    id INT AUTO_INCREMENT,
-    name    VARCHAR(50) NOT NULL UNIQUE,
+    name VARCHAR(50) NOT NULL UNIQUE,
     PRIMARY KEY (id)
 );
 
+CREATE TABLE articles_authors (
+    article_id INT NOT NULL,
+    author_id INT NOT NULL,
+    PRIMARY KEY (article_id, author_id),
+    FOREIGN KEY (article_id) REFERENCES articles (id),
+    FOREIGN KEY (author_id) REFERENCES users (id)
+);
+
+CREATE TABLE articles_contributors (
+    article_id INT NOT NULL,
+    contributor_id INT NOT NULL,
+    PRIMARY KEY (article_id, contributor_id),
+    FOREIGN KEY (article_id) REFERENCES articles (id),
+    FOREIGN KEY (contributor_id) REFERENCES users (id)
+);
+
 CREATE TABLE articles_tags (
-    article_id  INT,
+    article_id INT NOT NULL,
-    tag_id      INT,
+    tag_id INT NOT NULL,
     PRIMARY KEY (article_id, tag_id),
     FOREIGN KEY (article_id) REFERENCES articles (id),
     FOREIGN KEY (tag_id) REFERENCES tags (id)

docker-compose.yml

@@ -0,0 +1,23 @@
+services:
+  app:
+    build: .
+    ports:
+      - "1664:1664"
+    volumes:
+      - /etc/cpolis/config.toml:/etc/cpolis/config.toml
+      - /etc/cpolis/serviceAccountKey.json:/etc/cpolis/serviceAccountKey.json
+      - /var/log/cpolis.log:/var/log/cpolis.log
+    depends_on:
+      - db
+
+  db:
+    image: mariadb:latest
+    environment:
+      MYSQL_ROOT_PASSWORD: example
+      MYSQL_DATABASE: cpolis
+      MYSQL_USER: exampleuser
+      MYSQL_PASSWORD: examplepass
+    ports:
+      - "3306:3306"
+    volumes:
+      - ./create_db.sql:/docker-entrypoint-initdb.d/create_db.sql

go.mod

@@ -3,76 +3,73 @@ module streifling.com/jason/cpolis
 go 1.23.2
 
 require (
-	firebase.google.com/go/v4 v4.15.0
+	firebase.google.com/go/v4 v4.15.1
 	git.streifling.com/jason/atom v1.0.0
 	github.com/BurntSushi/toml v1.4.0
 	github.com/chai2010/webp v1.1.1
 	github.com/disintegration/imaging v1.6.2
+	github.com/gabriel-vasile/mimetype v1.4.8
 	github.com/go-sql-driver/mysql v1.8.1
 	github.com/google/uuid v1.6.0
-	github.com/gorilla/sessions v1.4.0
 	github.com/microcosm-cc/bluemonday v1.0.27
 	github.com/yuin/goldmark v1.7.8
-	golang.org/x/crypto v0.28.0
+	golang.org/x/crypto v0.32.0
-	golang.org/x/term v0.25.0
+	golang.org/x/term v0.28.0
-	google.golang.org/api v0.203.0
+	google.golang.org/api v0.216.0
 )
 
 require (
-	cel.dev/expr v0.18.0 // indirect
+	cel.dev/expr v0.19.1 // indirect
-	cloud.google.com/go v0.116.0 // indirect
+	cloud.google.com/go v0.118.0 // indirect
-	cloud.google.com/go/auth v0.9.9 // indirect
+	cloud.google.com/go/auth v0.14.0 // indirect
-	cloud.google.com/go/auth/oauth2adapt v0.2.4 // indirect
+	cloud.google.com/go/auth/oauth2adapt v0.2.7 // indirect
-	cloud.google.com/go/compute/metadata v0.5.2 // indirect
+	cloud.google.com/go/compute/metadata v0.6.0 // indirect
-	cloud.google.com/go/firestore v1.17.0 // indirect
+	cloud.google.com/go/firestore v1.18.0 // indirect
-	cloud.google.com/go/iam v1.2.2 // indirect
+	cloud.google.com/go/iam v1.3.1 // indirect
-	cloud.google.com/go/longrunning v0.6.2 // indirect
+	cloud.google.com/go/longrunning v0.6.4 // indirect
-	cloud.google.com/go/monitoring v1.21.2 // indirect
+	cloud.google.com/go/monitoring v1.22.1 // indirect
-	cloud.google.com/go/storage v1.45.0 // indirect
+	cloud.google.com/go/storage v1.50.0 // indirect
 	filippo.io/edwards25519 v1.1.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.24.3 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.25.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.48.3 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric v0.49.0 // indirect
-	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.48.3 // indirect
+	github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.49.0 // indirect
 	github.com/MicahParks/keyfunc v1.9.0 // indirect
 	github.com/aymerick/douceur v0.2.0 // indirect
-	github.com/census-instrumentation/opencensus-proto v0.4.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/cncf/xds/go v0.0.0-20240905190251-b4127c9b8d78 // indirect
+	github.com/cncf/xds/go v0.0.0-20241223141626-cff3c89139a3 // indirect
-	github.com/envoyproxy/go-control-plane v0.13.1 // indirect
+	github.com/envoyproxy/go-control-plane/envoy v1.32.3 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.1.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/golang-jwt/jwt/v4 v4.5.0 // indirect
+	github.com/golang-jwt/jwt/v4 v4.5.1 // indirect
-	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/google/s2a-go v0.1.8 // indirect
+	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.4 // indirect
-	github.com/googleapis/gax-go/v2 v2.13.0 // indirect
+	github.com/googleapis/gax-go/v2 v2.14.1 // indirect
 	github.com/gorilla/css v1.0.1 // indirect
-	github.com/gorilla/securecookie v1.1.2 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
-	go.opencensus.io v0.24.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
-	go.opentelemetry.io/contrib/detectors/gcp v1.31.0 // indirect
+	go.opentelemetry.io/contrib/detectors/gcp v1.33.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.56.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.58.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.56.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.58.0 // indirect
-	go.opentelemetry.io/otel v1.31.0 // indirect
+	go.opentelemetry.io/otel v1.33.0 // indirect
-	go.opentelemetry.io/otel/metric v1.31.0 // indirect
+	go.opentelemetry.io/otel/metric v1.33.0 // indirect
-	go.opentelemetry.io/otel/sdk v1.31.0 // indirect
+	go.opentelemetry.io/otel/sdk v1.33.0 // indirect
-	go.opentelemetry.io/otel/sdk/metric v1.31.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.33.0 // indirect
-	go.opentelemetry.io/otel/trace v1.31.0 // indirect
+	go.opentelemetry.io/otel/trace v1.33.0 // indirect
-	golang.org/x/image v0.21.0 // indirect
+	golang.org/x/image v0.23.0 // indirect
-	golang.org/x/net v0.30.0 // indirect
+	golang.org/x/net v0.34.0 // indirect
-	golang.org/x/oauth2 v0.23.0 // indirect
+	golang.org/x/oauth2 v0.25.0 // indirect
-	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/sync v0.10.0 // indirect
-	golang.org/x/sys v0.26.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
-	golang.org/x/text v0.19.0 // indirect
+	golang.org/x/text v0.21.0 // indirect
-	golang.org/x/time v0.7.0 // indirect
+	golang.org/x/time v0.9.0 // indirect
 	google.golang.org/appengine/v2 v2.0.6 // indirect
-	google.golang.org/genproto v0.0.0-20241021214115-324edc3d5d38 // indirect
+	google.golang.org/genproto v0.0.0-20250106144421-5f5ef82da422 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20241021214115-324edc3d5d38 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250106144421-5f5ef82da422 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241021214115-324edc3d5d38 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250106144421-5f5ef82da422 // indirect
-	google.golang.org/grpc v1.67.1 // indirect
+	google.golang.org/grpc v1.69.2 // indirect
-	google.golang.org/grpc/stats/opentelemetry v0.0.0-20241025232817-cb329375b14e // indirect
+	google.golang.org/protobuf v1.36.2 // indirect
-	google.golang.org/protobuf v1.35.1 // indirect
 )

go.sum

@@ -1,75 +1,69 @@
-cel.dev/expr v0.18.0 h1:CJ6drgk+Hf96lkLikr4rFf19WrU0BOWEihyZnI2TAzo=
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-cel.dev/expr v0.18.0/go.mod h1:MrpN08Q+lEBs+bGYdLxxHkZoUSsCp0nSKTs0nTymJgw=
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-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.118.0 h1:tvZe1mgqRxpiVa3XlIGMiPcEUbP1gNXELgD4y/IXmeQ=
-cloud.google.com/go v0.116.0 h1:B3fRrSDkLRt5qSHWe40ERJvhvnQwdZiHu0bJOpldweE=
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-cloud.google.com/go v0.116.0/go.mod h1:cEPSRWPzZEswwdr9BxE6ChEn01dWlTaF05LiC2Xs70U=
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-cloud.google.com/go/auth v0.9.9 h1:BmtbpNQozo8ZwW2t7QJjnrQtdganSdmqeIBxHxNkEZQ=
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web/static/css/input.css

@@ -24,7 +24,7 @@ textarea {
 }
 
 .btn-area {
-    @apply grid grid-cols-1 md:grid-cols-2 gap-x-4 gap-y-1 mt-4;
+    @apply grid grid-cols-1 md:grid-cols-2 gap-x-4 gap-y-1;
 }
 
 .btn-area-3 {
@@ -40,33 +40,33 @@ textarea {
 }
 
 .EasyMDEContainer .CodeMirror {
-    @apply bg-slate-50 dark:bg-slate-950 border-slate-200 dark:border-slate-800 text-slate-900 dark:text-slate-100
+    @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
+    @apply border-slate-900 dark:border-slate-100;
 }
 
 .EasyMDEContainer .editor-toolbar > * {
-    @apply text-slate-900 dark:text-slate-100
+    @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
+    @apply bg-slate-100 dark:bg-slate-900;
 }
 
 .EasyMDEContainer .CodeMirror-fullscreen {
-    @apply bg-slate-50 dark:bg-slate-950
+    @apply bg-slate-50 dark:bg-slate-950;
 }
 
 .editor-toolbar {
-    @apply border border-slate-200 dark:border-slate-800
+    @apply border border-slate-200 dark:border-slate-800;
 }
 
 .editor-toolbar.fullscreen {
-    @apply bg-slate-50 dark:bg-slate-950
+    @apply bg-slate-50 dark:bg-slate-950;
 }
 
 .editor-preview {
-    @apply bg-slate-50 dark:bg-slate-950
+    @apply bg-slate-50 dark:bg-slate-950;
 }

web/templates/add-user.html

@@ -1,66 +0,0 @@
-{{define "page-content"}}
-<h2>Neuer Benutzer</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" 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>
-            <label for="email">Emailadresse</label>
-            <input class="w-full" required name="email" type="text" value="{{.Email}}" />
-        </div>
-
-        <div>
-            <label for="email2">Emailadresse wiederholen</label>
-            <input class="w-full" required name="email2" type="text" value="{{.Email}}" />
-        </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="Anlegen" hx-post="/user/add" hx-target="#page-content" />
-        <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
-    </div>
-</form>
-{{end}}

web/templates/current-issue.html

@@ -79,8 +79,8 @@
 {{end}}
 
 {{define "issue-banner-template"}}
-<div class="w-full" id="issue-banner-container">
+<div id="issue-banner-container">
-    <img src="data:image/webp;base64,{{.BannerImage}}" alt="Banner Image">
+    <img src="/image/serve/{{.Image}}" alt="" />
-    <input id="issue-banner-url" name="issue-banner-url" type="hidden" value="{{.URL}}" />
+    <input id="issue-banner-url" name="issue-banner-url" type="hidden" value="{{.Image}}" />
 </div>
 {{end}}

web/templates/edit-self.html

@@ -1,53 +0,0 @@
-{{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>
-            <label for="email">Emailadresse</label>
-            <input class="w-full" required name="email" type="text" value="{{.Email}}" />
-        </div>
-
-        <div>
-            <label for="email2">Emailadresse wiederholen</label>
-            <input class="w-full" required name="email2" type="text" value="{{.Email}}" />
-        </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

@@ -1,67 +1,90 @@
 {{define "page-content"}}
-<h2>Profil von {{.FirstName}} {{.LastName}} bearbeiten</h2>
+<h2>{{.Title}}</h2>
+
+<form class="flex flex-col gap-4" hx-encoding="multipart/form-data">
+    <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+        {{template "profile-pic-template" .}}
 
-<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}}" />
+            <input class="w-full" required name="username" type="text" {{if lt .Role 4}}value="{{.UserName}}" {{end}} />
-        </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" />
+            <input class="w-full" required name="password" placeholder="***" type="password" />
         </div>
 
         <div>
             <label for="password2">Passwort wiederholen</label>
-            <input class="w-full" name="password2" placeholder="***" type="password" />
+            <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" {{if lt .Role 4}}value="{{.FirstName}}"
+                {{end}} />
+        </div>
+
+        <div>
+            <label for="last-name">Nachname</label>
+            <input class="w-full" required name="last-name" type="text" {{if lt .Role 4}}value="{{.LastName}}"
+                {{end}} />
         </div>
 
         <div>
             <label for="email">Emailadresse</label>
-            <input class="w-full" required name="email" type="text" value="{{.Email}}" />
+            <input class="w-full" required name="email" type="text" {{if lt .Role 4}}value="{{.Email}}" {{end}} />
         </div>
 
         <div>
             <label for="email2">Emailadresse wiederholen</label>
-            <input class="w-full" required name="email2" type="text" value="{{.Email}}" />
+            <input class="w-full" required name="email2" type="text" {{if lt .Role 4}}value="{{.Email}}" {{end}} />
         </div>
     </div>
 
+    {{if lt .Role 4}}
     <div class="flex flex-wrap gap-4">
         <div>
-            <input required id="author" name="role" type="radio" value="3" {{if eq .Role 3 }}checked{{end}} />
+            <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}} />
+            <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}} />
+            <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}} />
+            <input required id="admin" name="role" type="radio" value="0" {{if eq .Role 0}}checked{{end}} />
             <label for="admin">Administrator</label>
         </div>
     </div>
+    {{end}}
 
     <div class="btn-area">
-        <input class="action-btn" type="submit" value="Aktualisieren" hx-post="/user/update/{{.ID}}"
+        <input class="action-btn" type="submit" value="{{.ButtonText}}" hx-post="{{.URL}}" hx-target="#page-content" />
-            hx-target="#page-content" />
         <button class="btn" hx-get="/hub" hx-target="#page-content">Abbrechen</button>
     </div>
 </form>
 {{end}}
+
+{{define "profile-pic-template"}}
+<div class="flex items-center justify-center row-span-3 self-center" id="profile-pic-container">
+    <label
+        class="bg-slate-200 dark:bg-slate-800 hover:bg-slate-100 dark:hover:bg-slate-900 border border-slate-200 dark:border-slate-800 cursor-pointer flex flex-col h-48 items-center justify-center overflow-hidden rounded-full w-48"
+        for="upload-profile-pic">
+        {{if gt (len .Image) 0}}
+        <img src="/image/serve/{{.Image}}" alt="" />
+        {{else}}
+        <span class="text-2xl">+</span>
+        <span>Profilbild</span>
+        {{end}}
+    </label>
+    <input class="hidden" id="upload-profile-pic" name="upload-profile-pic" type="file"
+        hx-post="/user/upload-profile-pic" hx-swap="outerHTML" hx-target="#profile-pic-container" />
+    <input id="profile-pic-url" name="profile-pic-url" type="hidden" value="{{.Image}}" />
+</div>
+{{end}}

web/templates/editor.html

@@ -1,41 +1,38 @@
 {{define "page-content"}}
 <h2>Editor</h2>
 
-<form id="edit-area" hx-encoding="multipart/form-data">
+<form class="flex flex-col gap-4" id="edit-area" hx-encoding="multipart/form-data">
     <div class="flex flex-col gap-y-1">
-        <div class="w-full" id="article-banner-container">
+        {{template "article-banner-template" .}}
-            <img src="data:image/webp;base64,{{.BannerImage}}" alt="Banner Image">
-            <input id="article-banner-url" name="article-banner-url" type="hidden" value="{{.Article.BannerLink}}" />
-        </div>
 
         <div class="grid grid-cols-2 gap-4 items-center">
             <div class="flex flex-col">
-                <label for="article-title">Titel</label>
+                <h3>Titel</h3>
                 <input name="article-title" type="text" value="{{.Article.Title}}" />
             </div>
 
-            <div class="grid grid-cols-1 items-center">
+            <div class="flex">
                 <label class="btn text-center" for="article-banner">Titelbild</label>
                 <input class="hidden" id="article-banner" name="article-banner" type="file" required
-                    hx-post="/article/upload-banner" hx-target="#article-banner-container" />
+                    hx-post="/article/upload-banner" hx-swap="outerHTML" hx-target="#article-banner-container" />
             </div>
         </div>
     </div>
 
-    <div class="flex flex-col gap-y-1">
+    <div class="flex flex-col gap-1">
-        <label for="article-summary">Beschreibung</label>
+        <h3>Beschreibung</h3>
         <textarea name="article-summary">{{.Article.Summary}}</textarea>
     </div>
 
-    <div class="flex flex-col gap-y-1">
+    <div class="flex flex-col gap-1">
-        <label for="easyMDE">Artikel</label>
+        <h3>Artikel</h3>
         <textarea id="easyMDE">{{.Content}}</textarea>
         <input id="article-content" name="article-content" type="hidden" value="{{.Content}}" />
     </div>
 
     <div>
-        <span>Tags</span>
+        <h3>Tags</h3>
-        <div class="flex flex-wrap gap-x-4">
+        <div class="flex flex-wrap gap-4">
             <div>
                 <input id="issue" name="issue" type="checkbox" {{if .Article.IsInIssue}}checked{{end}} />
                 <label for="issue">Orient Express</label>
@@ -51,6 +48,38 @@
         </div>
     </div>
 
+    <div>
+        <h3>Beteiligte</h3>
+        {{range .ArticleUsers}}
+        <div class="border border-slate-200 dark:border-slate-800 flex gap-4 px-2 py-1 rounded-md">
+            <span>{{.FirstName}} {{.LastName}}: </span>
+
+            <div>
+                <input id="{{.ID}}-author" name="user-{{.ID}}" type="radio" value="author" {{if eq .ArticleRole
+                    1}}checked{{end}} />
+                <label for="{{.ID}}-author">Autor</label>
+            </div>
+
+            <div>
+                <input id="{{.ID}}-contributor" name="user-{{.ID}}" type="radio" value="contributor" {{if eq
+                    .ArticleRole 2}}checked{{end}} />
+                <label for="{{.ID}}-contributor">Mitwirkender</label>
+            </div>
+
+            <div>
+                <input id="{{.ID}}-none" name="user-{{.ID}}" type="radio" {{if eq .ArticleRole 0}}checked{{end}} />
+                <label for="{{.ID}}-none">Unbeteiligt</label>
+            </div>
+        </div>
+        {{end}}
+    </div>
+
+    <div>
+        <input id="creator" name="creator" type="checkbox" value="author" {{if eq .Creator.ArticleRole
+            1}}checked{{end}} />
+        <label for="creator">Ich bin Autor.</label>
+    </div>
+
     <div class="btn-area">
         <input class="action-btn" type="submit" value="Senden" hx-post="/article/{{.Action}}"
             hx-target="#page-content" />
@@ -92,8 +121,8 @@
 {{end}}
 
 {{define "article-banner-template"}}
-<div class="w-full" id="article-banner-container">
+<div id="article-banner-container">
-    <img src="data:image/webp;base64,{{.BannerImage}}" alt="Banner Image">
+    <img src="/image/serve/{{.Image}}" alt="" />
-    <input id="article-banner-url" name="article-banner-url" type="hidden" value="{{.URL}}" />
+    <input id="article-banner-url" name="article-banner-url" type="hidden" value="{{.Image}}" />
 </div>
 {{end}}

web/templates/first-user.html

@@ -1,46 +0,0 @@
-{{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" />
-        </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" />
-        </div>
-
-        <div>
-            <label for="last-name">Nachname</label>
-            <input class="w-full" required name="last-name" type="text" />
-        </div>
-
-        <div>
-            <label for="email">Emailadresse</label>
-            <input class="w-full" required name="email" type="text" />
-        </div>
-
-        <div>
-            <label for="email2">Emailadresse wiederholen</label>
-            <input class="w-full" required name="email2" type="text" />
-        </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>
-{{end}}

web/templates/hub.html

@@ -7,6 +7,11 @@
         <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>
+            <form class="flex" hx-encoding="multipart/form-data">
+                <label class="btn text-center" for="docx-upload">Word-Dokument hochladen</label>
+                <input accept=".docx" class="hidden" id="docx-upload" name="docx-upload" type="file"
+                    hx-post="/docx/upload" />
+            </form>
             <button class="btn" hx-get="/article/all-rejected" hx-target="#page-content">Artikel bearbeiten</button>
             {{if lt .Role 3}}<button class="btn" hx-get="/article/all-unpublished-unrejected-and-published-rejected"
                 hx-target="#page-content">Artikel veröffentlichen</button>{{end}}

web/templates/index.html

@@ -38,11 +38,11 @@
     </main>
 
     <footer class="text-center text-gray-500 my-8">
-        <p>&copy; 2024 Jason Streifling. Alle Rechte vorbehalten.</p>
+        <p>&copy; 2025 Jason Streifling. Alle Rechte vorbehalten.</p>
         <p>{{.Version}} - <strong>Alpha: Drastische Änderungen und Fehler vorbehalten.</strong></p>
     </footer>
 
-    <script src="https://unpkg.com/htmx.org@2.0.3"></script>
+    <script src="https://unpkg.com/htmx.org@latest"></script>
     <script src="https://unpkg.com/easymde/dist/easymde.min.js"></script>
     <script>
         document.addEventListener('DOMContentLoaded', () => {

web/templates/review-article.html

@@ -3,27 +3,27 @@
 
 <div>
     <div class="w-full" id="article-banner-container">
-        <img src="data:image/webp;base64,{{.BannerImage}}" alt="Banner Image">
+        <img src="/image/serve/{{.Image}}" alt="Banner Image">
     </div>
 
-    <span>Titel</span>
+    <h3>Titel</h3>
     <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>
+    <h3>Beschreibung</h3>
     <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
         {{.Article.Summary}}
     </div>
 
-    <span>Artikel</span>
+    <h3>Artikel</h3>
     <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>
+    <h3>Tags</h3>
     <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>
@@ -35,6 +35,22 @@
         {{end}}
     </div>
 
+    <h3>Autoren</h3>
+    <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
+        {{range .Authors}}
+        <span>{{.FirstName}} {{.LastName}}</span>
+        <br>
+        {{end}}
+    </div>
+
+    <h3>Mitwirkende</h3>
+    <div class="border border-slate-200 dark:border-slate-800 mb-3 px-2 py-2 rounded-md w-full">
+        {{range .Contributors}}
+        <span>{{.FirstName}} {{.LastName}}</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}}"