Implement received Webmention handling

Add the Flask application setup, database models and migrations,
authentication, and configuration for development and testing.

Implement asynchronous Webmention verification with Huey, including HTML
and plain-text source validation, retries, status tracking, and size
limits.

Add status, login, and paginated received-Webmention views together with
comprehensive tests for forms, views, and receiver tasks.

1 files changed, 42 insertions, 0 deletions

diff --git a/webmentions_ssg/forms/__init__.py b/webmentions_ssg/forms/__init__.py
new file mode 100644
index 0000000..98962ad
--- /dev/null
+++ b/webmentions_ssg/forms/__init__.py
@@ -0,0 +1,42 @@
+import re
+
+from flask_wtf import FlaskForm
+from wtforms import PasswordField, StringField, SubmitField
+from wtforms.validators import URL, InputRequired, Regexp
+
+from .validators import AllowedHostname, NotEqualTo
+
+
+class LoginForm(FlaskForm):
+    username = StringField("Username", validators=[InputRequired()])
+    password = PasswordField("Password", validators=[InputRequired()])
+    submit = SubmitField("Sign In")
+
+
+class EndpointForm(FlaskForm):
+    source = StringField(
+        "source",
+        validators=[
+            InputRequired(),
+            URL(),
+            Regexp(
+                "^https?://.*",
+                flags=re.IGNORECASE,
+                message="source must begin with http or https",
+            ),
+            NotEqualTo("target"),
+        ],
+    )
+    target = StringField(
+        "target",
+        validators=[
+            InputRequired(),
+            URL(),
+            Regexp(
+                "^https?://.*",
+                flags=re.IGNORECASE,
+                message="target must begin with http or https",
+            ),
+            AllowedHostname(),
+        ],
+    )