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✨(scheduling) add callback from caldav to django for imip

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This commit is contained in:
Sylvain Zimmer
2026-01-11 03:52:43 +01:00
parent bc801d3007
commit 3ed52ca5d0
15 changed files with 636 additions and 41 deletions
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40
docker/sabredav/server.php
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@@ -1,7 +1,7 @@
<?php
/**
* sabre/dav CalDAV Server
* Configured to use PostgreSQL backend and Apache authentication
* Configured to use PostgreSQL backend and custom header-based authentication
*/
use Sabre\DAV\Auth;
@@ -10,16 +10,12 @@ use Sabre\CalDAV;
use Sabre\CardDAV;
use Sabre\DAV;
use Calendars\SabreDav\AutoCreatePrincipalBackend;
use Calendars\SabreDav\HttpCallbackIMipPlugin;
use Calendars\SabreDav\ApiKeyAuthBackend;
// Composer autoloader
require_once __DIR__ . '/vendor/autoload.php';
// Set REMOTE_USER from X-Forwarded-User header (set by Django proxy)
// This allows sabre/dav Apache auth backend to work with proxied requests
if (isset($_SERVER['HTTP_X_FORWARDED_USER']) && !isset($_SERVER['REMOTE_USER'])) {
$_SERVER['REMOTE_USER'] = $_SERVER['HTTP_X_FORWARDED_USER'];
}
// Get base URI from environment variable (set by compose.yaml)
// This ensures sabre/dav generates URLs with the correct proxy path
$baseUri = getenv('CALENDARS_BASE_URI') ?: '/';
@@ -42,8 +38,14 @@ $pdo = new PDO(
]
);
// Create backend
$authBackend = new Auth\Backend\Apache();
// Create custom authentication backend
// Requires API key authentication and X-Forwarded-User header
$apiKey = getenv('CALDAV_OUTBOUND_API_KEY');
if (!$apiKey) {
error_log("[sabre/dav] CALDAV_OUTBOUND_API_KEY environment variable is required");
exit(1);
}
$authBackend = new ApiKeyAuthBackend($apiKey);
// Create authentication plugin
$authPlugin = new Auth\Plugin($authBackend);
@@ -75,5 +77,25 @@ $server->addPlugin(new CardDAV\Plugin());
$server->addPlugin(new DAVACL\Plugin());
$server->addPlugin(new DAV\Browser\Plugin());
// Add custom IMipPlugin that forwards scheduling messages via HTTP callback
// This MUST be added BEFORE the Schedule\Plugin so that Schedule\Plugin finds it
// The callback URL must be provided per-request via X-CalDAV-Callback-URL header
$callbackApiKey = getenv('CALDAV_INBOUND_API_KEY');
if (!$callbackApiKey) {
error_log("[sabre/dav] CALDAV_INBOUND_API_KEY environment variable is required for scheduling callback");
exit(1);
}
$imipPlugin = new HttpCallbackIMipPlugin($callbackApiKey);
$server->addPlugin($imipPlugin);
// Add CalDAV scheduling support
// See https://sabre.io/dav/scheduling/
// The Schedule\Plugin will automatically find and use the IMipPlugin we just added
// It looks for plugins that implement CalDAV\Schedule\IMipPlugin interface
$schedulePlugin = new CalDAV\Schedule\Plugin();
$server->addPlugin($schedulePlugin);
// error_log("[sabre/dav] Starting server");
// Start server
$server->start();