http: Add static file support

Static files are configured using a handful of config values. Static
files can be handled remotely or locally for prod or dev environments,
respectively.

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

example.env

@@ -7,9 +7,32 @@
 # Sqlite3 database path. Defaults to "bans.db"
 #DB_SQLITE3_PATH=bans.db
 
-# Domain name of the server
+# Domain name of the server. This is required.
 HTTP_DOMAIN=domain.com
 
 # Root of the HTTP server. Defaults to "/"
 # If you host other things on your domain, you may want to update this to be "/bans" or something.
 #HTTP_ROOT=/
+
+# Static files handler. Defaults to "local"
+# Valid values are:
+# * local
+# * remote
+# Locally handled static files use the STATIC_LOCAL_PATH config value.
+# IN GENERAL, the "local" configuration should not be used in a production environment.
+#STATIC_HANDLER=local
+
+# The local path to serve static files out of. Defaults to "static"
+# This is only used when STATIC_HANDLER is set to "local".
+#STATIC_LOCAL_PATH=static
+
+# Whether to follow symlinks in the local static file handler. Defaults to "true"
+# This is only used when STATIC_HANDLER is set to "local".
+# Must be one of:
+# * 1, true, yes
+# * 0, false, no
+#STATIC_LOCAL_FOLLOW_SYMLINKS=true
+
+# This is the URL to map static files to. Defaults to /static
+# This *WILL NOT* prepend the HTTP_ROOT path.
+#STATIC_ROOT=/static