Diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_sift/README.md	Tue Mar 18 00:31:36 2025 +0700
@@ -0,0 +1,32 @@
+---
+labels:
+- 'Stage-Alpha'
+summary: 'XEP-0273: Stanza Interception and Filtering Technology'
+...
+
+Introduction
+============
+
+[SIFT][XEP-0273] is a technology to allow clients to filter incoming
+traffic on the server. This helps save bandwidth, etc.
+
+Compatibility
+=============
+
+  ----- -------
+  0.7   Works
+  ----- -------
+
+Quirks
+======
+
+This implementation is a work in progress.
+
+-   Stanzas to full JIDs get sifted correctly
+-   Stanzas to bare JIDs are currently allowed/disallowed for all
+    resources as a whole, and not for individual resources
+-   Presence is only sent to available resources, and probes are not
+    sent for unavailable reasources
+-   This module currently does not interact with offline messages
+    (filtered messages are dropped with an error reply)
+-   Not tested with privacy lists