add download, fix empty apicontext, add url to describe

upd/api/common.go

@@ -49,6 +49,7 @@ type Upload struct {
 	Members  []string  `json:"members"` // contains multiple files, so File is an archive
 	Uploaded Timestamp `json:"uploaded"`
 	Context  string    `json:"context"`
+	Url      string    `json:"url"`
 }
 
 // this one is also used for marshalling to the client
@@ -170,5 +171,10 @@ func GetApicontext(c *fiber.Ctx) (string, error) {
 		return "", fmt.Errorf("Unable to initialize session store from context: " + err.Error())
 	}
 
-	return sess.Get("apicontext").(string), nil
+	apicontext := sess.Get("apicontext")
+	if apicontext != nil {
+		return apicontext.(string), nil
+	}
+
+	return "", nil
 }

upd/api/handlers.go

@@ -25,6 +25,7 @@ import (
 
 	"os"
 	"path/filepath"
+	"strings"
 	"time"
 )
 
@@ -260,6 +261,10 @@ func Describe(c *fiber.Ctx, cfg *cfg.Config, db *Db) error {
 			"No upload with that id could be found!")
 	}
 
+	for _, upload := range uploads.Entries {
+		upload.Url = strings.Join([]string{cfg.Url, "download", id, upload.File}, "/")
+	}
+
 	// if we reached this point we can signal success
 	uploads.Success = true
 	uploads.Code = fiber.StatusOK

upd/api/server.go

@@ -54,28 +54,31 @@ func Runserver(conf *cfg.Config, args []string) error {
 	// authenticated routes
 	api := router.Group(conf.ApiPrefix + ApiVersion)
 	{
-		// authenticated routes
+		// upload
 		api.Post("/file/", auth, func(c *fiber.Ctx) error {
 			return FilePut(c, conf, db)
 		})
 
+		// download w/o expire
 		api.Get("/file/:id/:file", auth, func(c *fiber.Ctx) error {
 			return FileGet(c, conf, db)
 		})
-
 		api.Get("/file/:id/", auth, func(c *fiber.Ctx) error {
 			return FileGet(c, conf, db)
 		})
 
+		// remove
 		api.Delete("/file/:id/", auth, func(c *fiber.Ctx) error {
 			err := DeleteUpload(c, conf, db)
 			return SendResponse(c, "", err)
 		})
 
+		// listing
 		api.Get("/list/", auth, func(c *fiber.Ctx) error {
 			return List(c, conf, db)
 		})
 
+		// info
 		api.Get("/upload/:id/", auth, func(c *fiber.Ctx) error {
 			return Describe(c, conf, db)
 		})