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, 50 insertions, 0 deletions

diff --git a/webmentions_ssg/config.py b/webmentions_ssg/config.py
new file mode 100644
index 0000000..7c448e9
--- /dev/null
+++ b/webmentions_ssg/config.py
@@ -0,0 +1,50 @@
+import logging
+import secrets
+
+
+class DefaultConfig:
+    TESTING = False
+    DEBUG = False
+    SECRET_KEY = secrets.token_urlsafe()
+    BOOTSTRAP_SERVE_LOCAL = True
+    # BOOTSTRAP_BOOTSWATCH_THEME = "Materia"
+    LOG_FILE = "/var/log/webmentions-ssg.log"
+    LOG_FORMAT = "[%(asctime)s]:%(levelname)s:%(name)s %(message)s"
+    LOG_LEVEL = logging.INFO
+    LOGFILE_MAX_BYTES = 20_000_000
+    LOGFILE_BACKUP_COUNT = 10
+    SQLALCHEMY_DATABASE_URI = "sqlite:///webmentions-ssg.db"
+
+
+class DevelopmentConfig(DefaultConfig):
+    DEBUG = True
+    LOG_FILE = "testing/webmentions-ssg.log"
+    LOG_LEVEL = logging.DEBUG
+    CONFIG_FILE = "testing/webmentions-ssg.cfg"
+
+
+class ProductionConfig(DefaultConfig):
+    CONFIG_FILE = "/etc/webmentions-ssg.cfg"
+
+
+class TestingConfig(DefaultConfig):
+    TESTING = True
+
+    SECRET_KEY = "testing-secret-key"
+    WTF_CSRF_ENABLED = False
+
+    LOG_FILE = "testing/webmentions-ssg-tests.log"
+    LOG_LEVEL = logging.DEBUG
+
+    SQLALCHEMY_DATABASE_URI = "sqlite:///:memory:"
+    SQLALCHEMY_TRACK_MODIFICATIONS = False
+
+    HUEY_URL = "memory://"
+
+    WEBMENTIONS_SSG_ALLOWED_HOSTNAMES = {
+        "dennisfink.me",
+    }
+
+    WEBMENTIONS_SSG_MAX_REDIRECTS = 20
+    WEBMENTIONS_SSG_MAX_SOURCE_BYTES = 1_000_000
+    WEBMENTIONS_SSG_REQUEST_TIMEOUT = 5.0