Allow JIT based on site or resource

server/routers/olm/handleOlmServerInitAddPeerHandshake.ts

@@ -0,0 +1,142 @@
+import {
+    db,
+    exitNodes,
+    Site,
+    siteResources
+} from "@server/db";
+import { MessageHandler } from "@server/routers/ws";
+import { clients, Olm, sites } from "@server/db";
+import { and, eq, or } from "drizzle-orm";
+import logger from "@server/logger";
+import { initPeerAddHandshake } from "./peers";
+
+export const handleOlmServerInitAddPeerHandshake: MessageHandler = async (
+    context
+) => {
+    logger.info("Handling register olm message!");
+    const { message, client: c, sendToClient } = context;
+    const olm = c as Olm;
+
+    if (!olm) {
+        logger.warn("Olm not found");
+        return;
+    }
+
+    if (!olm.clientId) {
+        logger.warn("Olm has no client!"); // TODO: Maybe we create the site here?
+        return;
+    }
+
+    const clientId = olm.clientId;
+
+    const [client] = await db
+        .select()
+        .from(clients)
+        .where(eq(clients.clientId, clientId))
+        .limit(1);
+
+    if (!client) {
+        logger.warn("Client not found");
+        return;
+    }
+
+    const { siteId, resourceId } = message.data;
+
+    let site: Site | null = null;
+    if (siteId) {
+        // get the site
+        const [siteRes] = await db
+            .select()
+            .from(sites)
+            .where(eq(sites.siteId, siteId))
+            .limit(1);
+        if (siteRes) {
+            site = siteRes;
+        }
+    }
+
+    if (resourceId && !site) {
+        const resources = await db
+            .select()
+            .from(siteResources)
+            .where(
+                and(
+                    or(
+                        eq(siteResources.niceId, resourceId),
+                        eq(siteResources.alias, resourceId)
+                    ),
+                    eq(siteResources.orgId, client.orgId)
+                )
+            );
+
+        if (!resources || resources.length === 0) {
+            logger.error(`handleOlmServerPeerAddMessage: Resource not found`);
+            return;
+        }
+
+        if (resources.length > 1) {
+            // error but this should not happen because the nice id cant contain a dot and the alias has to have a dot and both have to be unique within the org so there should never be multiple matches
+            logger.error(
+                `handleOlmServerPeerAddMessage: Multiple resources found matching the criteria`
+            );
+            return;
+        }
+        const siteIdFromResource = resources[0].siteId;
+
+        // get the site
+        const [siteRes] = await db
+            .select()
+            .from(sites)
+            .where(eq(sites.siteId, siteIdFromResource));
+        if (!siteRes) {
+            logger.error(
+                `handleOlmServerPeerAddMessage: Site with ID ${site} not found`
+            );
+            return;
+        }
+
+        site = siteRes;
+    }
+
+    if (!site) {
+        logger.error(`handleOlmServerPeerAddMessage: Site not found`);
+        return;
+    }
+
+    if (!site.exitNodeId) {
+        logger.error(
+            `handleOlmServerPeerAddMessage: Site with ID ${site.siteId} has no exit node`
+        );
+        return;
+    }
+
+    // get the exit node from the side
+    const [exitNode] = await db
+        .select()
+        .from(exitNodes)
+        .where(eq(exitNodes.exitNodeId, site.exitNodeId));
+
+    if (!exitNode) {
+        logger.error(
+            `handleOlmServerPeerAddMessage: Site with ID ${site.siteId} has no exit node`
+        );
+        return;
+    }
+
+    // also trigger the peer add handshake in case the peer was not already added to the olm and we need to hole punch
+    // if it has already been added this will be a no-op
+    await initPeerAddHandshake(
+        // this will kick off the add peer process for the client
+        client.clientId,
+        {
+            siteId: site.siteId,
+            exitNode: {
+                publicKey: exitNode.publicKey,
+                endpoint: exitNode.endpoint
+            }
+        },
+        olm.olmId
+    );
+
+    return;
+};