added server side directory adding, validation and redirecting, show directory path and mention 'files' near filecount in panel header

viewer/templates/add.html

@@ -17,7 +17,7 @@
                     <br>
                     Additionally, files can be matched <i>recursively</i> if you so wish. Please note that this functionality may create anomalous behavior around duplicate files.
                 </p>
-                <form action="{% url 'add_submit' %}">
+                <form action="{% url 'add_submit' %}" method="post">
                     {% csrf_token %}
                     <div class="field">
                         <label class="label">Directory</label>

viewer/templates/browse.html

@@ -2,9 +2,9 @@
 {% block content %}
     <div class="panel">
         <div class="panel-heading">
-            Files
+            {{ directory.path }}
             <span style="font-weight: 400; font-style: italic; font-size: 70%;">
-                {{ files|length }}
+                {{ files|length }} files
             </span>
             <span style="vertical-align: middle;" class="panel-icon">
                 <a href="{% url 'index' %}">

viewer/views.py

@@ -1,7 +1,8 @@
 import os
 
-from django.http import FileResponse, HttpResponse
+from django.http import FileResponse, HttpResponseRedirect
 from django.shortcuts import render, get_object_or_404
+from django.urls import reverse
 
 from viewer.helpers import extra_listdir
 from viewer.models import ServedDirectory
@@ -61,4 +62,25 @@ def add(request):
 
 
 def submit_new(request):
-    return HttpResponse('')
+    try:
+        s = ServedDirectory(
+            path=request.POST['path'],
+            regex_pattern=request.POST.get('regex'),
+            regex=request.POST.get('regex') is not None,
+            match_filename=request.POST.get('match_filename', False),
+            recursive=request.POST.get('recursive', False)
+        )
+        if not os.path.isdir(request.POST['path']):
+            raise ValueError('A invalid Directory was specified in the request.')
+        s.save()
+    except KeyError:
+        return render(request, 'message.html', status=403,
+                      context={'title': 'Invalid Options',
+                               'message': 'The POST request you sent did not have the options required to complete '
+                                          'the request.'})
+    except ValueError:
+        return render(request, 'message.html', status=400,
+                      context={'title': 'Invalid Directory',
+                               'message': 'The directory you specified was not a valid directory, either it doesn\'t '
+                                          'exist or it isn\'t a directory.'})
+    return HttpResponseRedirect(reverse('browse', args=(s.id,)))