ENG-1718 A database table to pass arbitrary payload between processes

packages/database/src/dbTypes.ts

@@ -722,6 +722,30 @@ export type Database = {
           },
         ]
       }
+      secret_token: {
+        Row: {
+          creator: string
+          expiry_date: string | null
+          id: string
+          one_time_use: boolean | null
+          payload: Json
+        }
+        Insert: {
+          creator?: string
+          expiry_date?: string | null
+          id?: string
+          one_time_use?: boolean | null
+          payload: Json
+        }
+        Update: {
+          creator?: string
+          expiry_date?: string | null
+          id?: string
+          one_time_use?: boolean | null
+          payload?: Json
+        }
+        Relationships: []
+      }
       Space: {
         Row: {
           id: number
@@ -1448,6 +1472,14 @@ export type Database = {
         }
         Returns: number
       }
+      create_secret_token: {
+        Args: {
+          expiry_interval?: string
+          v_one_time_use?: boolean
+          v_payload: Json
+        }
+        Returns: string
+      }
       document_in_space: { Args: { document_id: number }; Returns: boolean }
       document_of_content: {
         Args: { content: Database["public"]["Views"]["my_contents"]["Row"] }
@@ -1489,6 +1521,7 @@ export type Database = {
         }
         Returns: boolean
       }
+      get_secret_token: { Args: { token: string }; Returns: Json }
       get_space_anonymous_email: {
         Args: {
           platform: Database["public"]["Enums"]["Platform"]

packages/database/supabase/migrations/20260507150056_database_secret_tokens.sql

@@ -0,0 +1,50 @@
+CREATE TABLE IF NOT EXISTS public.secret_token (
+    id varchar PRIMARY KEY DEFAULT encode(extensions.gen_random_bytes(12), 'base64'),
+    creator UUID NOT NULL DEFAULT auth.uid(),
+    payload JSONB NOT NULL,
+    expiry_date timestamp without time zone,
+    one_time_use boolean DEFAULT true
+);
+
+CREATE INDEX IF NOT EXISTS secret_token_expiry_idx ON public.secret_token (expiry_date) WHERE expiry_date IS NOT null;
+
+CREATE OR REPLACE FUNCTION public.create_secret_token(v_payload JSONB, v_one_time_use BOOLEAN DEFAULT true, expiry_interval INTERVAL DEFAULT '30d') RETURNS VARCHAR
+SECURITY DEFINER
+SET search_path = ''
+LANGUAGE sql AS $$
+    INSERT INTO public.secret_token (payload, expiry_date, one_time_use) VALUES (v_payload, now()+expiry_interval, v_one_time_use) RETURNING id;
+$$;
+
+CREATE OR REPLACE FUNCTION public.get_secret_token(token VARCHAR) RETURNS JSONB
+SECURITY DEFINER
+SET search_path = ''
+LANGUAGE plpgsql AS $$
+DECLARE
+v_payload JSONB;
+v_one_time_use BOOLEAN;
+BEGIN
+    DELETE FROM public.secret_token WHERE expiry_date < now();
+    SELECT payload, one_time_use INTO v_payload, v_one_time_use FROM public.secret_token WHERE id=token;
+    IF v_one_time_use = true THEN
+        DELETE FROM public.secret_token WHERE id=token;
+    END IF;
+    RETURN v_payload;
+END;
+$$;
+
+ALTER TABLE secret_token OWNER TO "postgres";
+
+REVOKE ALL ON TABLE public.secret_token FROM anon;
+GRANT ALL ON TABLE public.secret_token TO authenticated;
+GRANT ALL ON TABLE public.secret_token TO service_role;
+
+ALTER TABLE public.secret_token ENABLE ROW LEVEL SECURITY;
+DROP POLICY IF EXISTS concept_policy ON public.secret_token;
+DROP POLICY IF EXISTS concept_select_policy ON public.secret_token;
+CREATE POLICY concept_select_policy ON public.secret_token FOR SELECT USING (creator = auth.uid());
+DROP POLICY IF EXISTS concept_delete_policy ON public.secret_token;
+CREATE POLICY concept_delete_policy ON public.secret_token FOR DELETE USING (creator = auth.uid());
+DROP POLICY IF EXISTS concept_insert_policy ON public.secret_token;
+-- Do not allow insert except through create_secret_token
+DROP POLICY IF EXISTS concept_update_policy ON public.secret_token;
+CREATE POLICY concept_update_policy ON public.secret_token FOR UPDATE USING (creator = auth.uid());

packages/database/supabase/schemas/secret_tokens.sql

@@ -0,0 +1,50 @@
+CREATE TABLE IF NOT EXISTS public.secret_token (
+    id varchar PRIMARY KEY DEFAULT encode(extensions.gen_random_bytes(12), 'base64'),
+    creator UUID NOT NULL DEFAULT auth.uid(),
+    payload JSONB NOT NULL,
+    expiry_date timestamp without time zone,
+    one_time_use boolean DEFAULT true
+);
+
+CREATE INDEX IF NOT EXISTS secret_token_expiry_idx ON public.secret_token (expiry_date) WHERE expiry_date IS NOT null;
+
+CREATE OR REPLACE FUNCTION public.create_secret_token(v_payload JSONB, v_one_time_use BOOLEAN DEFAULT true, expiry_interval INTERVAL DEFAULT '30d') RETURNS VARCHAR
+SECURITY DEFINER
+SET search_path = ''
+LANGUAGE sql AS $$
+    INSERT INTO public.secret_token (payload, expiry_date, one_time_use) VALUES (v_payload, now()+expiry_interval, v_one_time_use) RETURNING id;
+$$;
+
+CREATE OR REPLACE FUNCTION public.get_secret_token(token VARCHAR) RETURNS JSONB
+SECURITY DEFINER
+SET search_path = ''
+LANGUAGE plpgsql AS $$
+DECLARE
+v_payload JSONB;
+v_one_time_use BOOLEAN;
+BEGIN
+    DELETE FROM public.secret_token WHERE expiry_date < now();
+    SELECT payload, one_time_use INTO v_payload, v_one_time_use FROM public.secret_token WHERE id=token;
+    IF v_one_time_use = true THEN
+        DELETE FROM public.secret_token WHERE id=token;
+    END IF;
+    RETURN v_payload;
+END;
+$$;
+
+ALTER TABLE secret_token OWNER TO "postgres";
+
+REVOKE ALL ON TABLE public.secret_token FROM anon;
+GRANT ALL ON TABLE public.secret_token TO authenticated;
+GRANT ALL ON TABLE public.secret_token TO service_role;
+
+ALTER TABLE public.secret_token ENABLE ROW LEVEL SECURITY;
+DROP POLICY IF EXISTS concept_policy ON public.secret_token;
+DROP POLICY IF EXISTS concept_select_policy ON public.secret_token;
+CREATE POLICY concept_select_policy ON public.secret_token FOR SELECT USING (creator = auth.uid());
+DROP POLICY IF EXISTS concept_delete_policy ON public.secret_token;
+CREATE POLICY concept_delete_policy ON public.secret_token FOR DELETE USING (creator = auth.uid());
+DROP POLICY IF EXISTS concept_insert_policy ON public.secret_token;
+-- Do not allow insert except through create_secret_token
+DROP POLICY IF EXISTS concept_update_policy ON public.secret_token;
+CREATE POLICY concept_update_policy ON public.secret_token FOR UPDATE USING (creator = auth.uid());