feat: error handling

pyproject.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 description = "Web Interface to epub2go.py"
 readme = "README.md"
 requires-python = ">=3.12"
+# TODO enable auto-reload using https://github.com/adamchainz/django-browser-reload
 dependencies = [
     "celery>=5.4.0",
     "django>=5.1.6",

src/core/views.py

@@ -1,5 +1,5 @@
 from django.shortcuts import render
-from django.http import HttpRequest, HttpResponse, FileResponse
+from django.http import HttpRequest, HttpResponse, FileResponse, HttpResponseBadRequest
 from django.conf import settings
 from celery import shared_task
 
@@ -24,19 +24,22 @@ def index(request: HttpRequest):
     }
 
     targetParam = request.GET.get('t', None)
-    if validateUrl(targetParam):
-        fpath = getEpub(targetParam)
-        fname = os.path.basename(fpath)
-        file = open(fpath, 'rb')
-        response = FileResponse(file)
-        response['Content-Type'] = 'application/octet-stream'
-        response['Content-Disposition'] = f'attachment; filename="{fname}"'
-        return response
-
-    return render(request, 'index.html', context)
+    if targetParam:
+        if validateUrl(targetParam):
+            # download file
+            fpath = getEpub(targetParam)
+            fname = os.path.basename(fpath)
+            file = open(fpath, 'rb')
+            response = FileResponse(file)
+            response['Content-Type'] = 'application/octet-stream'
+            response['Content-Disposition'] = f'attachment; filename="{fname}"'
+            return response
+        else: return HttpResponseBadRequest('Input URL invalid.')
+    else:
+        # return base view
+        return render(request, 'index.html', context)
 
 def validateUrl(param)->bool :
-    if not param: return False
 
     netloc = urlparse(param).netloc
     if(netloc == gbnetloc): return True

src/epub2go_web/static/styles.css

@@ -5,8 +5,8 @@ body{
     line-height:1.6;
     font-size:18px;
     color:#444;
-    padding:0
-    10px}
+    padding:0 10px;
+}
 
 h1,h2,h3{
     line-height:1.2
@@ -17,7 +17,8 @@ h1,h2,h3{
     --white:#faf0e673;
 }
 body{
-    background-color: var(--white)
+    background-color: var(--white);
+    font-family: serif;
 }
 header{
     text-align: center;
@@ -36,13 +37,11 @@ tr:hover{
     background-color: #DDDDDD;
     transition: all 2ms;
 }
-.inline-icon{
+.inline-icon, .header-icon{
     vertical-align: middle;
     height: 1em;
 }
 .header-icon{
-    vertical-align: middle;
-    height: 1em;
     padding: .5em;
 }
 a:hover, a:any-link{