Code re-organization

commands/server.go

@@ -0,0 +1,124 @@
+package commands
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/siteworxpro/img-proxy-url-generator/aws"
+	"github.com/siteworxpro/img-proxy-url-generator/config"
+	"github.com/siteworxpro/img-proxy-url-generator/generator"
+	"github.com/siteworxpro/img-proxy-url-generator/printer"
+	"github.com/urfave/cli/v2"
+	"html/template"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+)
+
+type jsonRequest struct {
+	Image  string   `json:"image"`
+	Params []string `json:"params"`
+	Format string   `json:"format"`
+}
+
+func ServerCommand() *cli.Command {
+	return &cli.Command{
+		Name:  "server",
+		Usage: "Start a webserver for s3 file browsing and the web service",
+		Action: func(c *cli.Context) error {
+			p := printer.NewPrinter()
+			return startServer(c, p)
+		},
+	}
+}
+
+func startServer(c *cli.Context, p *printer.Printer) error {
+	cfg, err := config.NewConfig(c.String("config"))
+	if err != nil {
+		return err
+	}
+
+	ig, err := generator.NewGenerator(cfg)
+	if err != nil {
+		return err
+	}
+
+	_, err = os.Stat("./templates")
+	if !os.IsNotExist(err) {
+		awsClient := aws.NewClient(cfg)
+		http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+			if err != nil {
+				w.WriteHeader(http.StatusInternalServerError)
+				_, _ = w.Write([]byte(err.Error()))
+
+				return
+			}
+			contToken := r.URL.Query().Get("next")
+
+			var next *string
+			if contToken == "" {
+				next = nil
+			} else {
+				next = &contToken
+			}
+
+			contents, err := awsClient.ListBucketContents(next)
+			if err != nil {
+				w.WriteHeader(http.StatusInternalServerError)
+				_, _ = w.Write([]byte(err.Error()))
+
+				return
+			}
+
+			for i, content := range contents.Images {
+				contents.Images[i].Url, _ = ig.GenerateUrl("s3://"+cfg.Aws.AwsBucket+"/"+content.Name, []string{"pr:sq"}, "")
+				contents.Images[i].Download, _ = ig.GenerateUrl("s3://"+cfg.Aws.AwsBucket+"/"+content.Name, []string{""}, "")
+			}
+
+			file, _ := os.ReadFile("./templates/index.gohtml")
+
+			tmpl := template.Must(template.New("index").Parse(string(file)))
+
+			err = tmpl.Execute(w, contents)
+
+			if err != nil {
+				println(err.Error())
+			}
+		})
+	}
+
+	http.HandleFunc("/generate", func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "POST" {
+			w.WriteHeader(404)
+
+			return
+		}
+
+		bodyContents := make([]byte, r.ContentLength)
+		_, _ = r.Body.Read(bodyContents)
+
+		jr := jsonRequest{}
+		err = json.Unmarshal(bodyContents, &jr)
+		if err != nil {
+			println(err.Error())
+			w.WriteHeader(500)
+			return
+		}
+
+		url, err := signURL(jr.Image, jr.Params, jr.Format)
+		if err != nil {
+			println(err.Error())
+			w.WriteHeader(500)
+			return
+		}
+
+		log.Println(fmt.Sprintf("%s - [%s] - (%s)", jr.Image, strings.Join(jr.Params, ","), url))
+
+		_, _ = w.Write([]byte(url))
+	})
+
+	p.LogSuccess("Starting http server on port 8080. http://localhost:8080")
+	log.Fatal(http.ListenAndServe("0.0.0.0:8080", nil))
+
+	return nil
+}