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-rw-r--r--nixpkgs/nixos/tests/lemmy.nix100
1 files changed, 100 insertions, 0 deletions
diff --git a/nixpkgs/nixos/tests/lemmy.nix b/nixpkgs/nixos/tests/lemmy.nix
new file mode 100644
index 000000000000..d93df3646837
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+++ b/nixpkgs/nixos/tests/lemmy.nix
@@ -0,0 +1,100 @@
+import ./make-test-python.nix ({ pkgs, lib, ... }:
+let
+  uiPort = 1234;
+  backendPort = 5678;
+  lemmyNodeName = "server";
+in
+{
+  name = "lemmy";
+  meta = with lib.maintainers; { maintainers = [ mightyiam ]; };
+
+  nodes = {
+    client = { };
+
+    "${lemmyNodeName}" = {
+      services.lemmy = {
+        enable = true;
+        ui.port = uiPort;
+        database.createLocally = true;
+        settings = {
+          hostname = "http://${lemmyNodeName}";
+          port = backendPort;
+          # Without setup, the /feeds/* and /nodeinfo/* API endpoints won't return 200
+          setup = {
+            admin_username = "mightyiam";
+            site_name = "Lemmy FTW";
+            admin_email = "mightyiam@example.com";
+          };
+        };
+        adminPasswordFile = /etc/lemmy-admin-password.txt;
+        caddy.enable = true;
+      };
+
+      environment.etc."lemmy-admin-password.txt".text = "ThisIsWhatIUseEverywhereTryIt";
+
+      networking.firewall.allowedTCPPorts = [ 80 ];
+
+      # pict-rs seems to need more than 1025114112 bytes
+      virtualisation.memorySize = 2000;
+    };
+  };
+
+  testScript = ''
+    server = ${lemmyNodeName}
+
+    with subtest("the merged config is secure"):
+        server.wait_for_unit("lemmy.service")
+        config_permissions = server.succeed("stat --format %A /run/lemmy/config.hjson").rstrip()
+        assert config_permissions == "-rw-------", f"merged config permissions {config_permissions} are insecure"
+        directory_permissions = server.succeed("stat --format %A /run/lemmy").rstrip()
+        assert directory_permissions[5] == directory_permissions[8] == "-", "merged config can be replaced"
+
+    with subtest("the backend starts and responds"):
+        server.wait_for_open_port(${toString backendPort})
+        # wait until succeeds, it just needs few seconds for migrations, but lets give it 10s max
+        server.wait_until_succeeds("curl --fail localhost:${toString backendPort}/api/v3/site", 10)
+
+    with subtest("the UI starts and responds"):
+        server.wait_for_unit("lemmy-ui.service")
+        server.wait_for_open_port(${toString uiPort})
+        server.succeed("curl --fail localhost:${toString uiPort}")
+
+    with subtest("Lemmy-UI responds through the caddy reverse proxy"):
+        server.systemctl("start network-online.target")
+        server.wait_for_unit("network-online.target")
+        server.wait_for_unit("caddy.service")
+        server.wait_for_open_port(80)
+        body = server.execute("curl --fail --location ${lemmyNodeName}")[1]
+        assert "Lemmy" in body, f"String Lemmy not found in response for ${lemmyNodeName}: \n{body}"
+
+    with subtest("the server is exposed externally"):
+        client.systemctl("start network-online.target")
+        client.wait_for_unit("network-online.target")
+        client.succeed("curl -v --fail ${lemmyNodeName}")
+
+    with subtest("caddy correctly routes backend requests"):
+        # Make sure we are not hitting frontend
+        server.execute("systemctl stop lemmy-ui.service")
+
+        def assert_http_code(url, expected_http_code, extra_curl_args=""):
+            _, http_code = server.execute(f'curl --silent -o /dev/null {extra_curl_args} --fail --write-out "%{{http_code}}" {url}')
+            assert http_code == str(expected_http_code), f"expected http code {expected_http_code}, got {http_code}"
+
+        # Caddy responds with HTTP code 502 if it cannot handle the requested path
+        assert_http_code("${lemmyNodeName}/obviously-wrong-path/", 502)
+
+        assert_http_code("${lemmyNodeName}/static/js/client.js", 200)
+        assert_http_code("${lemmyNodeName}/api/v3/site", 200)
+
+        # A 404 confirms that the request goes to the backend
+        # No path can return 200 until after we upload an image to pict-rs
+        assert_http_code("${lemmyNodeName}/pictrs/", 404)
+
+        assert_http_code("${lemmyNodeName}/feeds/all.xml", 200)
+        assert_http_code("${lemmyNodeName}/nodeinfo/2.0.json", 200)
+
+        assert_http_code("${lemmyNodeName}/some-other-made-up-path/", 404, "-X POST")
+        assert_http_code("${lemmyNodeName}/some-other-path", 404, "-H 'Accept: application/activity+json'")
+        assert_http_code("${lemmyNodeName}/some-other-path", 404, "-H 'Accept: application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"'")
+  '';
+})