Implemented subpath support

.env

@@ -1,9 +1,9 @@
 ARTICLE_ROOT=./articles/
 
+SERVER_URL=localhost:8080
 SERVER_PORT=8080
 
 PREFIX=
 
 DATABASE_FILE=database.sqlite3
-ARTICLE_TEMPLATE=./frontend/html/article.gohtml
 FRONTEND_DIR=./frontend/

config/config.go

@@ -3,18 +3,25 @@ package config
 import (
 	"github.com/joho/godotenv"
 	"os"
+	"path"
 )
 
+type pageBase struct {
+	BasePath string
+}
+
+var PageBase pageBase
+
 var (
 	ArticleRoot string
 
+	ServerURL  string
 	ServerPort string
 
 	Prefix string
 
-	DatabaseFile    string
-	ArticleTemplate string
-	FrontendDir     string
+	DatabaseFile string
+	FrontendDir  string
 )
 
 func init() {
@@ -22,11 +29,15 @@ func init() {
 
 	ArticleRoot = os.Getenv("ARTICLE_ROOT")
 
+	ServerURL = os.Getenv("SERVER_URL")
 	ServerPort = os.Getenv("SERVER_PORT")
 
 	Prefix = os.Getenv("PREFIX")
 
 	DatabaseFile = os.Getenv("DATABASE_FILE")
-	ArticleTemplate = os.Getenv("ARTICLE_TEMPLATE")
 	FrontendDir = os.Getenv("FRONTEND_DIR")
+
+	PageBase = pageBase{
+		BasePath: path.Join(ServerURL, Prefix),
+	}
 }

main.go

@@ -7,6 +7,7 @@ import (
 	"TheAdversary/server"
 	"fmt"
 	"github.com/gorilla/mux"
+	"html/template"
 	"net/http"
 	"path/filepath"
 )
@@ -24,7 +25,7 @@ func main() {
 	}
 	database.SetGlobDB(db)
 
-	if err := http.ListenAndServe(fmt.Sprintf(":%s", config.ServerPort), r); err != nil {
+	if err := http.ListenAndServe(fmt.Sprintf("%s:%s", config.ServerURL, config.ServerPort), r); err != nil {
 		panic(err)
 	}
 }
@@ -52,9 +53,11 @@ func setupFrontend(r *mux.Router) {
 	r.PathPrefix("/sass/").HandlerFunc(server.ServePath)
 	r.PathPrefix("/img/").HandlerFunc(server.ServePath)
 
+	landingpage := template.Must(template.ParseFiles(filepath.Join(config.FrontendDir, "html", "landingpage.gohtml")))
+
 	r.PathPrefix("/").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if r.URL.Path == "/" {
-			http.ServeFile(w, r, filepath.Join(config.FrontendDir, "html", "landingpage.html"))
+			landingpage.Execute(w, config.PageBase)
 		} else {
 			server.Error404(w, r)
 		}

server/article.go

@@ -5,14 +5,16 @@ import (
 	"TheAdversary/database"
 	"github.com/gorilla/mux"
 	"net/http"
+	"path/filepath"
 	"text/template"
 	"time"
 )
 
-var tmpl = template.Must(template.ParseFiles(config.ArticleTemplate))
+var tmpl = template.Must(template.ParseFiles(filepath.Join(config.FrontendDir, "html", "article.gohtml")))
 
 type tmplArticle struct {
 	Title    string
+	BasePath string
 	Summary  string
 	Image    string
 	Authors  []string
@@ -37,12 +39,13 @@ func Article(w http.ResponseWriter, r *http.Request) {
 		database.GetDB().Table("article_tag").Where("article_id = ?", article.Id).Find(&tags)
 
 		ta := tmplArticle{
-			Title:   article.Title,
-			Summary: article.Summary,
-			Image:   article.Image,
-			Authors: authors,
-			Tags:    tags,
-			Content: article.Html,
+			Title:    article.Title,
+			BasePath: config.PageBase.BasePath,
+			Summary:  article.Summary,
+			Image:    article.Image,
+			Authors:  authors,
+			Tags:     tags,
+			Content:  article.Html,
 		}
 		if article.Modified > 0 {
 			ta.Date = time.Unix(article.Modified, 0).Format("Monday, 2. January 2006 | 15:04")