Rename to mailcloak

.gitea/workflows/release.yml

@@ -34,22 +34,22 @@ jobs:
         run: |
           set -eux
           mkdir -p dist
-          BIN="kc-policy-${GOOS}-${GOARCH}"
+          BIN="mailcloak-${GOOS}-${GOARCH}"
           go build \
             -trimpath \
             -ldflags="-s -w -X main.version=${VERSION}" \
-            -o "dist/${BIN}" ./cmd/kc-policy
+            -o "dist/${BIN}" ./cmd/mailcloak
           tar -C dist -czf "dist/${BIN}.tar.gz" "${BIN}"
-          cp aliasctl dist/
+          cp mailcloakctl dist/
           sha256sum "dist/${BIN}.tar.gz" >> dist/checksums.txt
-          sha256sum "dist/aliasctl" >> dist/checksums.txt
+          sha256sum "dist/mailcloakctl" >> dist/checksums.txt
 
       - name: Upload assets to Gitea release
         uses: https://gitea.com/actions/gitea-release-action@v1
         with:
           files: |
             dist/*.tar.gz
-            dist/aliasctl
+            dist/mailcloakctl
             dist/checksums.txt
           generate_release_notes: true
         env:

Makefile

@@ -1,10 +1,14 @@
-BINARY := kc-policy
+BINARY := mailcloak
 BIN_DIR := bin
 
 .PHONY: build run test tidy clean install
 
 build:
-	go build -o $(BIN_DIR)/$(BINARY) ./cmd/$(BINARY)
+	export CGO_ENABLED=0
+	go build \
+		-trimpath \
+		-ldflags="-s -w" \
+		-o "$(BIN_DIR)/$(BINARY)" ./cmd/$(BINARY)
 
 run:
 	go run ./cmd/$(BINARY)

README.md

@@ -1,4 +1,4 @@
-# kc-policy
+# mailcloak
 
 Postfix policy + socketmap daemon that validates recipients/senders against Keycloak and serves a local aliases SQLite database.
 
@@ -9,13 +9,13 @@ Postfix policy + socketmap daemon that validates recipients/senders against Keyc
 - **Socketmap service**: exposes an `alias` map to Postfix, rewriting alias -> `username@domain`.
 
 ## Project layout
-- `cmd/kc-policy/` – main package entrypoint
-- `internal/kcpolicy/` – daemon sources
+- `cmd/mailcloak/` – main package entrypoint
+- `internal/mailcloak/` – daemon sources
 - `go.mod` / `go.sum` – Go module files
-- `configs/config.yaml.sample` – sample config to copy to `/etc/kc-policy/config.yaml`
-- `configs/openrc-kc-policy` – OpenRC service file
+- `configs/config.yaml.sample` – sample config to copy to `/etc/mailcloak/config.yaml`
+- `configs/openrc-mailcloak` – OpenRC service file
 - `db-init.sql` – SQLite schema (also auto-created by the app)
-- `aliasctl.py` – CLI helper to manage aliases
+- `mailcloakctl` – CLI helper to manage aliases
 
 ## Build the binary
 From the repository root:
@@ -40,8 +40,8 @@ make run
 Copy the sample config and edit it:
 
 ```bash
-install -d -m 0750 -o root -g postfix /etc/kc-policy
-cp configs/config.yaml.sample /etc/kc-policy/config.yaml
+install -d -m 0750 -o root -g postfix /etc/mailcloak
+cp configs/config.yaml.sample /etc/mailcloak/config.yaml
 ```
 
 Key settings:
@@ -50,12 +50,12 @@ Key settings:
 - `sqlite.path` is the aliases database path.
 - `sockets.*` must be under the Postfix chroot (usually `/var/spool/postfix`).
 
-## Alias database
+## Mailcloak database
 You can manage aliases using the helper script:
 
 ```bash
-./aliasctl.py --db /var/lib/kc-policy/aliases.db add alias@example.com username
-./aliasctl.py --db /var/lib/kc-policy/aliases.db list
+./mailcloakctl aliases add alias@example.com username
+./mailcloakctl aliases list
 ```
 
 The script creates the schema automatically if missing.
@@ -63,21 +63,21 @@ The script creates the schema automatically if missing.
 ## Postfix integration (example)
 Policy service (smtpd_recipient_restrictions):
 ```
-check_policy_service unix:private/kc-policy
+check_policy_service unix:private/mailcloak
 ```
 
 Socketmap (virtual_alias_maps):
 ```
-socketmap:unix:private/kc-socketmap:alias
+socketmap:unix:private/mailcloak-socketmap:alias
 ```
 
 ## OpenRC
 Use the provided service file:
 
 ```bash
-cp configs/openrc-kc-policy /etc/init.d/kc-policy
-rc-update add kc-policy default
-rc-service kc-policy start
+cp configs/openrc-mailcloak /etc/init.d/mailcloak
+rc-update add mailcloak default
+rc-service mailcloak start
 ```
 
 ## Notes

cmd/mailcloak/main.go

@@ -9,7 +9,7 @@ import (
 	"syscall"
 	"time"
 
-	"kc-policy/internal/kcpolicy"
+	"mailcloak/internal/mailcloak"
 )
 
 var version = "dev"
@@ -20,43 +20,43 @@ func main() {
 		return
 	}
 
-	cfgPath := "/etc/kc-policy/config.yaml"
+	cfgPath := "/etc/mailcloak/config.yaml"
 	if len(os.Args) >= 2 {
 		cfgPath = os.Args[1]
 	}
 
-	cfg, err := kcpolicy.LoadConfig(cfgPath)
+	cfg, err := mailcloak.LoadConfig(cfgPath)
 	if err != nil {
 		log.Fatalf("config: %v", err)
 	}
 
-	db, err := kcpolicy.OpenAliasDB(cfg.SQLite.Path)
+	db, err := mailcloak.OpenAliasDB(cfg.SQLite.Path)
 	if err != nil {
 		log.Fatalf("sqlite: %v", err)
 	}
 	defer db.Close()
 
-	kc := kcpolicy.NewKeycloak(cfg)
-	cache := kcpolicy.NewCache(time.Duration(cfg.Policy.CacheTTLSeconds) * time.Second)
+	kc := mailcloak.NewKeycloak(cfg)
+	cache := mailcloak.NewCache(time.Duration(cfg.Policy.CacheTTLSeconds) * time.Second)
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
 	// Start socketmap server
 	go func() {
-		if err := kcpolicy.RunSocketmap(ctx, cfg, db); err != nil {
+		if err := mailcloak.RunSocketmap(ctx, cfg, db); err != nil {
 			log.Fatalf("socketmap: %v", err)
 		}
 	}()
 
 	// Start policy server
 	go func() {
-		if err := kcpolicy.RunPolicy(ctx, cfg, db, kc, cache); err != nil {
+		if err := mailcloak.RunPolicy(ctx, cfg, db, kc, cache); err != nil {
 			log.Fatalf("policy: %v", err)
 		}
 	}()
 
-	log.Printf("kc-policy started")
+	log.Printf("mailcloak started")
 
 	// Handle signals
 	ch := make(chan os.Signal, 2)

configs/config.yaml.sample

@@ -6,7 +6,7 @@ keycloak:
   # admin API is derived: {base_url}/admin/realms/{realm}
 
 sqlite:
-  path: "/var/lib/kc-policy/aliases.db"
+  path: "/var/lib/mailcloak/state.db"
 
 policy:
   domain: "<EMail domain-name>"
@@ -19,8 +19,8 @@ policy:
 
 sockets:
   # These paths must be inside postfix chroot (/var/spool/postfix)
-  policy_socket: "/var/spool/postfix/private/kc-policy"
-  socketmap_socket: "/var/spool/postfix/private/kc-socketmap"
+  policy_socket: "/var/spool/postfix/private/mailcloak-policy"
+  socketmap_socket: "/var/spool/postfix/private/mailcloak-socketmap"
   socket_owner_user: "postfix"
   socket_owner_group: "postfix"
   socket_mode: "0660"

configs/openrc-kc-policy

@@ -1,23 +0,0 @@
-#!/sbin/openrc-run
-
-name="kc-policy"
-command="/usr/local/sbin/kc-policy"
-command_args="/etc/kc-policy/config.yaml"
-command_background="yes"
-pidfile="/run/kc-policy.pid"
-
-depend() {
-  need net
-  after postfix
-}
-
-start_pre() {
-  checkpath -d -m 0750 -o root:postfix /etc/kc-policy
-  checkpath -d -m 0750 -o root:postfix /var/lib/kc-policy
-  checkpath -d -m 0755 -o root:root /usr/local/sbin
-  # sockets dir already exists
-}
-
-stop_post() {
-  rm -f /var/spool/postfix/private/kc-policy /var/spool/postfix/private/kc-socketmap
-}

configs/openrc-mailcloak

@@ -0,0 +1,23 @@
+#!/sbin/openrc-run
+
+name="mailcloak"
+command="/usr/local/sbin/mailcloak"
+command_args="/etc/mailcloak/config.yaml"
+command_background="yes"
+pidfile="/run/mailcloak.pid"
+
+depend() {
+  need net
+  after postfix
+}
+
+start_pre() {
+  checkpath -d -m 0750 -o root:postfix /etc/mailcloak
+  checkpath -d -m 0750 -o root:postfix /var/lib/mailcloak
+  checkpath -d -m 0755 -o root:root /usr/local/sbin
+  # sockets dir already exists
+}
+
+stop_post() {
+  rm -f /var/spool/postfix/private/mailcloak-policy /var/spool/postfix/private/mailcloak-socketmap
+}

configs/postfix-main.cf

@@ -9,7 +9,7 @@ virtual_mailbox_domains = static:<EMail domain-name>
 virtual_transport = lmtp:unix:private/dovecot-lmtp
 
 # Dynamic aliases via socketmap
-virtual_alias_maps = socketmap:unix:private/kc-socketmap:alias
+virtual_alias_maps = socketmap:unix:private/mailcloak-socketmap:alias
 
 # Policy (RCPT existence + sender policy on 587 via master.cf)
 smtpd_recipient_restrictions =
@@ -17,5 +17,5 @@ smtpd_recipient_restrictions =
   reject_unknown_recipient_domain,
   permit_sasl_authenticated,
   reject_unauth_destination,
-  check_policy_service unix:private/kc-policy,
+  check_policy_service unix:private/mailcloak-policy,
   permit

configs/postfix-master.cf

@@ -2,7 +2,7 @@
 # Configuration to add to /etc/postfix/master.cf
 #
 
--o smtpd_sender_restrictions=check_policy_service unix:private/kc-policy
+-o smtpd_sender_restrictions=check_policy_service unix:private/mailcloak-policy
 
-# You can remove `reject_senders_login_mismaych` + `sender_login_maps`
-# as this kc-policy will handle it.
+# You can remove `reject_senders_login_mismatch` + `sender_login_maps`
+# as mailcloak will handle it.

db-init.sql

@@ -6,3 +6,18 @@ CREATE TABLE IF NOT EXISTS aliases (
 );
 
 CREATE INDEX IF NOT EXISTS idx_aliases_username ON aliases(username);
+
+CREATE TABLE IF NOT EXISTS apps (
+  app_id      TEXT PRIMARY KEY,
+  secret_hash TEXT NOT NULL,
+  enabled     INTEGER NOT NULL DEFAULT 1,
+  created_at  INTEGER NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS app_from (
+  app_id    TEXT NOT NULL,
+  from_addr TEXT NOT NULL,
+  enabled   INTEGER NOT NULL DEFAULT 1,
+  PRIMARY KEY (app_id, from_addr),
+  FOREIGN KEY (app_id) REFERENCES apps(app_id) ON DELETE CASCADE
+);

go.mod

@@ -1,4 +1,4 @@
-module kc-policy
+module mailcloak
 
 go 1.22
 

internal/mailcloak/config.go

@@ -1,4 +1,4 @@
-package kcpolicy
+package mailcloak
 
 import (
 	"fmt"

internal/mailcloak/keycloak.go

@@ -1,4 +1,4 @@
-package kcpolicy
+package mailcloak
 
 import (
 	"context"

internal/mailcloak/policy.go

@@ -1,4 +1,4 @@
-package kcpolicy
+package mailcloak
 
 import (
 	"bufio"

internal/mailcloak/socket_perms.go

@@ -1,4 +1,4 @@
-package kcpolicy
+package mailcloak
 
 import (
 	"fmt"

internal/mailcloak/socketmap.go

@@ -1,4 +1,4 @@
-package kcpolicy
+package mailcloak
 
 import (
 	"bufio"

internal/mailcloak/sqlite.go

@@ -1,4 +1,4 @@
-package kcpolicy
+package mailcloak
 
 import (
 	"database/sql"

mailcloakctl

@@ -4,7 +4,7 @@ import sqlite3
 import time
 import sys
 
-DEFAULT_DB = "/var/lib/kc-policy/aliases.db"
+DEFAULT_DB = "/var/lib/mailcloak/state.db"
 
 SCHEMA = """
 CREATE TABLE IF NOT EXISTS aliases (