Add emoji support for short

- support for the entire range as well as multiple
character emojis

- right now, urls.py only accepts emoji. I need to
go in and modify the regex to support the old way and
the new

Closes #149

.gitignore

@@ -10,7 +10,6 @@ venv
 /go/settings/secret.py
 /go/static/admin
 /go/media
-/go/go/migrations
 .coverage
 htmlcov/
 .idea

docker-compose.yml

@@ -3,6 +3,7 @@ version: "3"
 services:
   db:
     image: mysql:5.7
+    command: mysqld --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_ci
     ports:
       - "3306:3306"
     environment:

go/go/models.py

@@ -147,7 +147,14 @@ class URL(models.Model):
         help_text=""
     )
 
-    short = models.SlugField(
+    # TODO Validator for Slug + Emoji
+    """
+    # http://stackoverflow.com/a/13752628/6762004
+    RE_EMOJI = re.compile('[\U00010000-\U0010ffff]', flags=re.UNICODE)
+    slug_unicode_re = _lazy_re_compile(r'^[-\w]+\Z')
+    slug_re = _lazy_re_compile(r'^[-a-zA-Z0-9_]+\Z')
+    """
+    short = models.CharField(
         max_length=20,
         unique=True,
         help_text=""
@@ -160,7 +167,7 @@ class URL(models.Model):
 
     def __str__(self):
         return '<Owner: %s - Target URL: %s>' % (
-            self.owner.user, self.target
+            self.owner.user, self.destination
         )
 
     class Meta:

go/go/views.py

@@ -486,10 +486,10 @@ def redirection(request, short):
     # Get the URL short link
     doesExist = URL.objects.get(short__iexact=short)
     # Checks to see if the link exists, if not we 404 the user.
-    if doesExist.target is None:
+    if doesExist.destination is None:
         return redirect('go/404.html')
     # If the user is trying to make a Go link to itself, we 404 them
-    if url.target == domain + short:
+    if url.destination == domain + short:
         return redirect('404.html')
 
     # If the user is coming from a QR request then increment qrclicks
@@ -502,7 +502,7 @@ def redirection(request, short):
 
     # Save our data and redirect the user towards their destination
     url.save()
-    return redirect(url.target)
+    return redirect(url.destination)
 
 
 def staff_member_required(view_func, redirect_field_name=REDIRECT_FIELD_NAME, login_url='/'):

go/settings/base.py

@@ -80,6 +80,7 @@ DATABASES = {
         'PASSWORD': os.environ['GO_DB_PASSWORD'],
         'HOST': os.environ['GO_DB_HOST'],
         'PORT': os.environ['GO_DB_PORT'],
+        'OPTIONS': {'charset': 'utf8mb4'}
     }
 }
 

go/settings/urls.py

@@ -5,7 +5,7 @@ The URLs of the project and their associated view that requests are routed to.
 """
 # Django Imports
 import django.contrib.auth.views
-from django.urls import path
+from django.urls import path, re_path
 from django.contrib import admin
 from django.views.decorators.cache import cache_page
 from django.views.generic import TemplateView
@@ -26,7 +26,8 @@ urlpatterns = [
     path('view/<slug:short>', cache_page(60 * 15)(go.views.view), name='view'),
 
     # /about - About page. Cached for 15 minutes
-    path('about',cache_page(60 * 15)(TemplateView.as_view(template_name='core/about.html')), name='about'),
+    path('about', cache_page(60 * 15)
+         (TemplateView.as_view(template_name='core/about.html')), name='about'),
 
     # /signup - Signup page for access. Cached for 15 minutes
     path('signup', cache_page(60 * 15)(go.views.signup), name='signup'),
@@ -44,7 +45,8 @@ urlpatterns = [
     path('delete/<slug:short>', go.views.delete, name='delete'),
 
     # /registered - registration complete page. Cached for 15 minutes
-    path('registered', cache_page(60 * 15)(TemplateView.as_view(template_name='registered.html')), name='registered'),
+    path('registered', cache_page(60 * 15)
+         (TemplateView.as_view(template_name='registered.html')), name='registered'),
 
     # /admin - Administrator interface.
     path('admin', admin.site.urls, name='go_admin'),
@@ -54,8 +56,10 @@ urlpatterns = [
 
     # Authentication URLs
     path('login', django.contrib.auth.views.login, name='go_login'),
-    path('logout', django.contrib.auth.views.logout, {'next_page': '/'}, name='go_logout'),
+    path('logout', django.contrib.auth.views.logout,
+         {'next_page': '/'}, name='go_logout'),
 
     # Redirection regex.
-    path('<slug:short>', go.views.redirection, name='redirection'),
+    re_path(r'^(?P<short>([\U00010000-\U0010ffff][\U0000200D]?)+)$',
+            go.views.redirection, name='redirection'),
 ]