chore: Update generated docs

Also re-adds ability to inspect used features

.forgejo/actions/setup-rust/action.yml

@@ -149,37 +149,6 @@ runs:
     - name: Setup sccache
       uses: https://git.tomfos.tr/tom/sccache-action@v1
 
-    - name: Cache dependencies
-      id: deps-cache
-      uses: actions/cache@v4
-      with:
-        path: |
-          target/**/.fingerprint
-          target/**/deps
-          target/**/*.d
-          target/**/.cargo-lock
-          target/**/CACHEDIR.TAG
-          target/**/.rustc_info.json
-          /timelord/
-        # Dependencies cache - based on Cargo.lock, survives source code changes
-        key: >-
-          continuwuity-deps-${{ steps.runner-os.outputs.slug }}-${{ steps.runner-os.outputs.arch }}-${{ steps.rust-setup.outputs.version }}${{ inputs.cache-key-suffix && format('-{0}', inputs.cache-key-suffix) || '' }}-${{ hashFiles('rust-toolchain.toml', '**/Cargo.lock') }}
-        restore-keys: |
-          continuwuity-deps-${{ steps.runner-os.outputs.slug }}-${{ steps.runner-os.outputs.arch }}-${{ steps.rust-setup.outputs.version }}${{ inputs.cache-key-suffix && format('-{0}', inputs.cache-key-suffix) || '' }}-
-
-    - name: Cache incremental compilation
-      id: incremental-cache
-      uses: actions/cache@v4
-      with:
-        path: |
-          target/**/incremental
-        # Incremental cache - based on source code changes
-        key: >-
-          continuwuity-incremental-${{ steps.runner-os.outputs.slug }}-${{ steps.runner-os.outputs.arch }}-${{ steps.rust-setup.outputs.version }}${{ inputs.cache-key-suffix && format('-{0}', inputs.cache-key-suffix) || '' }}-${{ hashFiles('rust-toolchain.toml', '**/Cargo.lock') }}-${{ hashFiles('**/*.rs', '**/Cargo.toml') }}
-        restore-keys: |
-          continuwuity-incremental-${{ steps.runner-os.outputs.slug }}-${{ steps.runner-os.outputs.arch }}-${{ steps.rust-setup.outputs.version }}${{ inputs.cache-key-suffix && format('-{0}', inputs.cache-key-suffix) || '' }}-${{ hashFiles('rust-toolchain.toml', '**/Cargo.lock') }}-
-          continuwuity-incremental-${{ steps.runner-os.outputs.slug }}-${{ steps.runner-os.outputs.arch }}-${{ steps.rust-setup.outputs.version }}${{ inputs.cache-key-suffix && format('-{0}', inputs.cache-key-suffix) || '' }}-
-
     - name: End build cache restore group
       shell: bash
       run: echo "::endgroup::"

.forgejo/workflows/update-flake-hashes.yml

@@ -20,7 +20,7 @@ jobs:
           token: ${{ secrets.FORGEJO_TOKEN }}
 
       - name: Install Lix
-        uses: https://github.com/samueldr/lix-gha-installer-action@7b7f14d320d6aacfb65bd1ef761566b3b69e474c
+        uses: https://github.com/samueldr/lix-gha-installer-action@f5e94192f565f53d84f41a056956dc0d3183b343
         with:
           extra_nix_config: experimental-features = nix-command flakes flake-self-attrs
 

Cargo.lock

@@ -948,10 +948,12 @@ dependencies = [
  "conduwuit_build_metadata",
  "conduwuit_core",
  "conduwuit_database",
+ "conduwuit_macros",
  "conduwuit_router",
  "conduwuit_service",
  "console-subscriber",
  "const-str",
+ "ctor",
  "hardened_malloc-rs",
  "log",
  "opentelemetry",
@@ -981,6 +983,7 @@ dependencies = [
  "conduwuit_macros",
  "conduwuit_service",
  "const-str",
+ "ctor",
  "futures",
  "lettre",
  "log",
@@ -1003,8 +1006,10 @@ dependencies = [
  "base64 0.22.1",
  "bytes",
  "conduwuit_core",
+ "conduwuit_macros",
  "conduwuit_service",
  "const-str",
+ "ctor",
  "futures",
  "hmac",
  "http",
@@ -1030,6 +1035,7 @@ name = "conduwuit_build_metadata"
 version = "0.5.7-alpha.1"
 dependencies = [
  "built",
+ "cargo_metadata",
 ]
 
 [[package]]
@@ -1102,7 +1108,9 @@ version = "0.5.7-alpha.1"
 dependencies = [
  "async-channel",
  "conduwuit_core",
+ "conduwuit_macros",
  "const-str",
+ "ctor",
  "futures",
  "log",
  "minicbor",
@@ -1118,6 +1126,7 @@ dependencies = [
 name = "conduwuit_macros"
 version = "0.5.7-alpha.1"
 dependencies = [
+ "cargo_toml",
  "itertools 0.14.0",
  "proc-macro2",
  "quote",
@@ -1136,9 +1145,11 @@ dependencies = [
  "conduwuit_admin",
  "conduwuit_api",
  "conduwuit_core",
+ "conduwuit_macros",
  "conduwuit_service",
  "conduwuit_web",
  "const-str",
+ "ctor",
  "futures",
  "http",
  "http-body-util",
@@ -1169,7 +1180,9 @@ dependencies = [
  "bytes",
  "conduwuit_core",
  "conduwuit_database",
+ "conduwuit_macros",
  "const-str",
+ "ctor",
  "either",
  "futures",
  "governor",

changelog.d/1629.feature.md

@@ -0,0 +1 @@
+Added admin commands to get build information and features. Contributed by @Jade

changelog.d/1630.bugfix

@@ -0,0 +1 @@
+Fixed restricted joins not being signed when we are being used as an authorising server. Contributed by @nex, reported by [vel](matrix:u/vel:nhjkl.com?action=chat).

conduwuit-example.toml

@@ -527,13 +527,13 @@
 # which users must agree to when registering an account.
 #
 # Example:
-# ```
+# ```ignore
 # [global.registration_terms.privacy_policy]
 # en = { name = "Privacy Policy", url = "https://homeserver.example/en/privacy_policy.html" }
 # es = { name = "Política de Privacidad", url = "https://homeserver.example/es/privacy_policy.html" }
 # ```
 #
-#registration_terms = false
+#registration_terms = {}
 
 # Controls whether encrypted rooms and events are allowed.
 #

docs/reference/admin/query.md

@@ -133,6 +133,18 @@ pusher service
 
 Returns all the pushers for the user
 
+### `!admin query pusher delete-pusher`
+
+Deletes a specific pusher by ID
+
+### `!admin query pusher delete-all-user`
+
+Deletes all pushers for a user
+
+### `!admin query pusher delete-all-device`
+
+Deletes all pushers associated with a device ID
+
 ## `!admin query short`
 
 short service

docs/reference/admin/server.md

@@ -47,3 +47,11 @@ Restart the server
 ## `!admin server shutdown`
 
 Shutdown the server
+
+## `!admin server list-features`
+
+List features built into the server
+
+## `!admin server build-info`
+
+Build information

docs/reference/admin/users.md

@@ -157,3 +157,7 @@ Force joins all local users to the specified room.
 At least 1 server admin must be in the room to reduce abuse.
 
 Requires the `--yes-i-want-to-do-this` flag.
+
+## `!admin users reset-push-rules`
+
+Resets the push-rules (notification settings) of the target user to the server defaults

src/admin/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_admin"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -79,6 +80,7 @@ conduwuit-database.workspace = true
 conduwuit-macros.workspace = true
 conduwuit-service.workspace = true
 const-str.workspace = true
+ctor.workspace = true
 futures.workspace = true
 lettre.workspace = true
 log.workspace = true

src/admin/mod.rs

@@ -3,6 +3,8 @@
 #![allow(clippy::enum_glob_use)]
 #![allow(clippy::too_many_arguments)]
 
+conduwuit_macros::introspect_crate! {}
+
 pub(crate) mod admin;
 pub(crate) mod context;
 pub(crate) mod processor;

src/admin/server/commands.rs

@@ -1,4 +1,4 @@
-use std::{path::PathBuf, sync::Arc};
+use std::{fmt::Write, path::PathBuf, sync::Arc};
 
 use conduwuit::{
 	Err, Result,
@@ -153,3 +153,97 @@ pub(super) async fn shutdown(&self) -> Result {
 
 	self.write_str("Shutting down server...").await
 }
+
+#[admin_command]
+pub(super) async fn list_features(&self) -> Result {
+	let mut enabled_features = conduwuit::info::introspection::ENABLED_FEATURES
+		.lock()
+		.expect("locked")
+		.iter()
+		.flat_map(|(_, f)| f.iter())
+		.collect::<Vec<_>>();
+
+	enabled_features.sort_unstable();
+	enabled_features.dedup();
+
+	let mut available_features = conduwuit::build_metadata::WORKSPACE_FEATURES
+		.iter()
+		.flat_map(|(_, f)| f.iter())
+		.collect::<Vec<_>>();
+
+	available_features.sort_unstable();
+	available_features.dedup();
+
+	let mut features = String::new();
+
+	for feature in available_features {
+		let active = enabled_features.contains(&feature);
+		let emoji = if active { "✅" } else { "❌" };
+		let remark = if active { "[enabled]" } else { "" };
+		writeln!(features, "{emoji} {feature} {remark}")?;
+	}
+
+	self.write_str(&features).await
+}
+
+#[admin_command]
+pub(super) async fn build_info(&self) -> Result {
+	use conduwuit::build_metadata::built;
+
+	let mut info = String::new();
+
+	// Version information
+	writeln!(info, "# Build Information\n")?;
+	writeln!(info, "**Version:** {}", built::PKG_VERSION)?;
+	writeln!(info, "**Package:** {}", built::PKG_NAME)?;
+	writeln!(info, "**Description:** {}", built::PKG_DESCRIPTION)?;
+
+	// Git information
+	writeln!(info, "\n## Git Information\n")?;
+	if let Some(hash) = conduwuit::build_metadata::GIT_COMMIT_HASH {
+		writeln!(info, "**Commit Hash:** {hash}")?;
+	}
+	if let Some(hash) = conduwuit::build_metadata::GIT_COMMIT_HASH_SHORT {
+		writeln!(info, "**Commit Hash (short):** {hash}")?;
+	}
+	if let Some(url) = conduwuit::build_metadata::GIT_REMOTE_WEB_URL {
+		writeln!(info, "**Repository:** {url}")?;
+	}
+	if let Some(url) = conduwuit::build_metadata::GIT_REMOTE_COMMIT_URL {
+		writeln!(info, "**Commit URL:** {url}")?;
+	}
+
+	// Build environment
+	writeln!(info, "\n## Build Environment\n")?;
+	writeln!(info, "**Profile:** {}", built::PROFILE)?;
+	writeln!(info, "**Optimization Level:** {}", built::OPT_LEVEL)?;
+	writeln!(info, "**Debug:** {}", built::DEBUG)?;
+	writeln!(info, "**Target:** {}", built::TARGET)?;
+	writeln!(info, "**Host:** {}", built::HOST)?;
+
+	// Rust compiler information
+	writeln!(info, "\n## Compiler Information\n")?;
+	writeln!(info, "**Rustc Version:** {}", built::RUSTC_VERSION)?;
+	if !built::RUSTDOC_VERSION.is_empty() {
+		writeln!(info, "**Rustdoc Version:** {}", built::RUSTDOC_VERSION)?;
+	}
+
+	// Target configuration
+	writeln!(info, "\n## Target Configuration\n")?;
+	writeln!(info, "**Architecture:** {}", built::CFG_TARGET_ARCH)?;
+	writeln!(info, "**OS:** {}", built::CFG_OS)?;
+	writeln!(info, "**Family:** {}", built::CFG_FAMILY)?;
+	writeln!(info, "**Endianness:** {}", built::CFG_ENDIAN)?;
+	writeln!(info, "**Pointer Width:** {} bits", built::CFG_POINTER_WIDTH)?;
+	if !built::CFG_ENV.is_empty() {
+		writeln!(info, "**Environment:** {}", built::CFG_ENV)?;
+	}
+
+	// CI information
+	if let Some(ci) = built::CI_PLATFORM {
+		writeln!(info, "\n## CI Platform\n")?;
+		writeln!(info, "**Platform:** {ci}")?;
+	}
+
+	self.write_str(&info).await
+}

src/admin/server/mod.rs

@@ -52,4 +52,10 @@ pub enum ServerCommand {
 
 	/// Shutdown the server
 	Shutdown,
+
+	/// List features built into the server
+	ListFeatures,
+
+	/// Build information
+	BuildInfo,
 }

src/api/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_api"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -76,8 +77,10 @@ axum.workspace = true
 base64.workspace = true
 bytes.workspace = true
 conduwuit-core.workspace = true
+conduwuit-macros.workspace = true
 conduwuit-service.workspace = true
 const-str.workspace = true
+ctor.workspace = true
 futures.workspace = true
 hmac.workspace = true
 http.workspace = true

src/api/client/directory.rs

@@ -1,9 +1,7 @@
-use std::iter::once;
-
 use axum::extract::State;
 use axum_client_ip::InsecureClientIp;
 use conduwuit::{
-	Err, Event, Result, RoomVersion, err, info,
+	Err, Event, Result, err, info,
 	utils::{
 		TryFutureExtExt,
 		math::Expected,
@@ -32,14 +30,12 @@ use ruma::{
 	events::{
 		StateEventType,
 		room::{
-			create::RoomCreateEventContent,
 			join_rules::{JoinRule, RoomJoinRulesEventContent},
 			power_levels::{RoomPowerLevels, RoomPowerLevelsEventContent},
 		},
 	},
 	uint,
 };
-use tokio::join;
 
 use crate::Ruma;
 
@@ -343,63 +339,36 @@ pub(crate) async fn get_public_rooms_filtered_helper(
 	})
 }
 
-/// Checks whether the given user ID is allowed to publish the target room to
-/// the server's public room directory. Users are allowed to publish rooms if
-/// they are server admins, room creators (in v12), or have the power level to
-/// send `m.room.canonical_alias`.
+/// Check whether the user can publish to the room directory via power levels of
+/// room history visibility event or room creator
 async fn user_can_publish_room(
 	services: &Services,
 	user_id: &UserId,
 	room_id: &RoomId,
 ) -> Result<bool> {
-	if services.users.is_admin(user_id).await {
-		// Server admins can always publish to their own room directory.
-		return Ok(true);
-	}
-	let (create_event, room_version, power_levels_content) = join!(
-		services
-			.rooms
-			.state_accessor
-			.room_state_get(room_id, &StateEventType::RoomCreate, ""),
-		services.rooms.state.get_room_version(room_id),
-		services
-			.rooms
-			.state_accessor
-			.room_state_get_content::<RoomPowerLevelsEventContent>(
-				room_id,
-				&StateEventType::RoomPowerLevels,
-				""
-			)
-	);
-	let room_version = room_version
-		.as_ref()
-		.map_err(|_| err!(Request(NotFound("Unknown room"))))?;
-	let create_event = create_event.map_err(|_| err!(Request(NotFound("Unknown room"))))?;
-	if RoomVersion::new(room_version)
-		.expect("room version must be supported")
-		.explicitly_privilege_room_creators
+	match services
+		.rooms
+		.state_accessor
+		.room_state_get(room_id, &StateEventType::RoomPowerLevels, "")
+		.await
 	{
-		let create_content: RoomCreateEventContent =
-			serde_json::from_str(create_event.content().get())
-				.map_err(|_| err!(Database("Invalid event content for m.room.create")))?;
-		let is_creator = create_content
-			.additional_creators
-			.unwrap_or_default()
-			.into_iter()
-			.chain(once(create_event.sender().to_owned()))
-			.any(|sender| sender == user_id);
-		if is_creator {
-			return Ok(true);
-		}
-	}
-	match power_levels_content.map(RoomPowerLevels::from) {
-		| Ok(pl) => Ok(pl.user_can_send_state(user_id, StateEventType::RoomCanonicalAlias)),
-		| Err(e) =>
-			if e.is_not_found() {
-				Ok(create_event.sender() == user_id)
-			} else {
-				Err!(Database("Invalid event content for m.room.power_levels: {e}"))
-			},
+		| Ok(event) => serde_json::from_str(event.content().get())
+			.map_err(|_| err!(Database("Invalid event content for m.room.power_levels")))
+			.map(|content: RoomPowerLevelsEventContent| {
+				RoomPowerLevels::from(content)
+					.user_can_send_state(user_id, StateEventType::RoomHistoryVisibility)
+			}),
+		| _ => {
+			match services
+				.rooms
+				.state_accessor
+				.room_state_get(room_id, &StateEventType::RoomCreate, "")
+				.await
+			{
+				| Ok(event) => Ok(event.sender() == user_id),
+				| _ => Err!(Request(Forbidden("User is not allowed to publish this room"))),
+			}
+		},
 	}
 }
 

src/api/mod.rs

@@ -3,6 +3,9 @@
 
 extern crate conduwuit_core as conduwuit;
 extern crate conduwuit_service as service;
+
+conduwuit_macros::introspect_crate! {}
+
 pub mod client;
 pub mod router;
 pub mod server;

src/api/server/send_join.rs

@@ -71,7 +71,7 @@ async fn create_join_event(
 	let room_version_id = services.rooms.state.get_room_version(room_id).await?;
 
 	trace!("Generating event ID and converting to canonical json");
-	let Ok((event_id, value)) = gen_event_id_canonical_json(pdu, &room_version_id) else {
+	let Ok((event_id, mut value)) = gen_event_id_canonical_json(pdu, &room_version_id) else {
 		// Event could not be converted to canonical json
 		return Err!(Request(BadJson("Could not convert event to canonical json.")));
 	};
@@ -187,6 +187,13 @@ async fn create_join_event(
 				"Joining user did not pass restricted room's rules."
 			)));
 		}
+
+		services
+			.server_keys
+			.hash_and_sign_event(&mut value, &room_version_id)
+			.map_err(|e| {
+				err!(Request(InvalidParam(warn!("Failed to sign send_join event: {e}"))))
+			})?;
 	}
 
 	let mutex_lock = services

src/build_metadata/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_build_metadata"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -27,6 +28,6 @@ crate-type = [
 
 [build-dependencies]
 built = { version = "0.8", features = [] }
-
+cargo_metadata = { version = "0.23.1" }
 [lints]
 workspace = true

src/build_metadata/build.rs

@@ -1,5 +1,9 @@
-use std::process::Command;
+use std::{
+	collections::BTreeMap, env, fmt::Write as FmtWrite, fs, io::Write, path::Path,
+	process::Command,
+};
 
+use cargo_metadata::MetadataCommand;
 fn run_git_command(args: &[&str]) -> Option<String> {
 	Command::new("git")
 		.args(args)
@@ -11,12 +15,60 @@ fn run_git_command(args: &[&str]) -> Option<String> {
 		.filter(|s| !s.is_empty())
 }
 fn get_env(env_var: &str) -> Option<String> {
-	match std::env::var(env_var) {
+	match env::var(env_var) {
 		| Ok(val) if !val.is_empty() => Some(val),
 		| _ => None,
 	}
 }
 fn main() {
+	println!("cargo:rerun-if-changed=Cargo.toml");
+
+	let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap(); // Cargo.toml path
+	let manifest_path = Path::new(&manifest_dir).join("Cargo.toml");
+
+	let metadata = MetadataCommand::new()
+		.manifest_path(&manifest_path)
+		.no_deps()
+		.exec()
+		.expect("failed to parse `cargo metadata`");
+
+	let workspace_packages = metadata
+		.workspace_members
+		.iter()
+		.map(|package| {
+			let package = metadata.packages.iter().find(|p| p.id == *package).unwrap();
+			println!("cargo:rerun-if-changed={}", package.manifest_path.as_str());
+			package
+		})
+		.collect::<Vec<_>>();
+
+	// Extract available features from workspace packages
+	let mut available_features: BTreeMap<String, Vec<String>> = BTreeMap::new();
+	for package in &workspace_packages {
+		let crate_name = package
+			.name
+			.trim_start_matches("conduwuit-")
+			.replace('-', "_");
+		let features: Vec<String> = package.features.keys().cloned().collect();
+		if !features.is_empty() {
+			available_features.insert(crate_name, features);
+		}
+	}
+
+	// Generate Rust code for available features
+	let features_code = generate_features_code(&available_features);
+	let features_dst =
+		Path::new(&env::var("OUT_DIR").expect("OUT_DIR not set")).join("available_features.rs");
+	let mut features_file = fs::File::create(features_dst).unwrap();
+	features_file.write_all(features_code.as_bytes()).unwrap();
+
+	let dst = Path::new(&env::var("OUT_DIR").expect("OUT_DIR not set")).join("pkg.json");
+
+	let mut out_file = fs::File::create(dst).unwrap();
+	out_file
+		.write_all(format!("{workspace_packages:?}").as_bytes())
+		.unwrap();
+
 	// built gets the default crate from the workspace. Not sure if this is intended
 	// behavior, but it's what we want.
 	built::write_built_file().expect("Failed to acquire build-time information");
@@ -91,3 +143,30 @@ fn main() {
 	println!("cargo:rerun-if-env-changed=GIT_REMOTE_URL");
 	println!("cargo:rerun-if-env-changed=GIT_REMOTE_COMMIT_URL");
 }
+
+fn generate_features_code(features: &BTreeMap<String, Vec<String>>) -> String {
+	let mut code = String::from(
+		r#"
+/// All available features for workspace crates
+pub const WORKSPACE_FEATURES: &[(&str, &[&str])] = &[
+"#,
+	);
+
+	for (crate_name, feature_list) in features {
+		write!(code, "    (\"{crate_name}\", &[").unwrap();
+		for (i, feature) in feature_list.iter().enumerate() {
+			if i > 0 {
+				code.push_str(", ");
+			}
+			write!(code, "\"{feature}\"").unwrap();
+		}
+		code.push_str("]),\n");
+	}
+
+	code.push_str(
+		r#"];
+"#,
+	);
+
+	code
+}

src/build_metadata/mod.rs

@@ -2,6 +2,10 @@ pub mod built {
 	include!(concat!(env!("OUT_DIR"), "/built.rs"));
 }
 
+// Include generated available features
+// This provides: pub const WORKSPACE_FEATURES: &[(&str, &[&str])]
+include!(concat!(env!("OUT_DIR"), "/available_features.rs"));
+
 pub static GIT_COMMIT_HASH: Option<&str> = option_env!("GIT_COMMIT_HASH");
 
 pub static GIT_COMMIT_HASH_SHORT: Option<&str> = option_env!("GIT_COMMIT_HASH_SHORT");

src/core/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_core"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true

src/core/info/introspection.rs

@@ -0,0 +1,7 @@
+//! Information about features the crates were compiled with.
+//! Only available for crates that have called the `introspect_crate` macro
+
+use std::collections::BTreeMap;
+
+pub static ENABLED_FEATURES: std::sync::Mutex<BTreeMap<&str, &[&str]>> =
+	std::sync::Mutex::new(BTreeMap::new());

src/core/info/mod.rs

@@ -1,3 +1,4 @@
+pub mod introspection;
 pub mod room_version;
 pub mod version;
 

src/core/mod.rs

@@ -19,6 +19,7 @@ pub use ::smallstr;
 pub use ::smallvec;
 pub use ::toml;
 pub use ::tracing;
+pub use conduwuit_build_metadata as build_metadata;
 pub use config::Config;
 pub use error::Error;
 pub use info::{
@@ -34,6 +35,8 @@ pub use utils::{implement, result, result::Result};
 
 pub use crate as conduwuit_core;
 
+conduwuit_macros::introspect_crate! {}
+
 #[cfg(any(not(conduwuit_mods), not(feature = "conduwuit_mods")))]
 pub mod mods {
 	#[macro_export]

src/database/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_database"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -54,7 +55,9 @@ bindgen-runtime = [
 [dependencies]
 async-channel.workspace = true
 conduwuit-core.workspace = true
+conduwuit-macros.workspace = true
 const-str.workspace = true
+ctor.workspace = true
 futures.workspace = true
 log.workspace = true
 minicbor.workspace = true

src/database/mod.rs

@@ -3,6 +3,8 @@
 extern crate conduwuit_core as conduwuit;
 extern crate rust_rocksdb as rocksdb;
 
+conduwuit_macros::introspect_crate! {}
+
 conduwuit::mod_ctor! {}
 conduwuit::mod_dtor! {}
 

src/macros/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_macros"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -17,6 +18,7 @@ syn.workspace = true
 quote.workspace = true
 proc-macro2.workspace = true
 itertools.workspace = true
+cargo_toml.workspace = true
 
 [lints]
 workspace = true

src/macros/build_info.rs

@@ -0,0 +1,63 @@
+use proc_macro2::TokenStream;
+use quote::quote;
+
+use crate::Result;
+
+pub(super) fn introspect(_args: TokenStream) -> Result<TokenStream> {
+	let cargo_crate_name = std::env::var("CARGO_CRATE_NAME").unwrap();
+	let crate_name = cargo_crate_name.trim_start_matches("conduwuit_");
+	let is_core = cargo_crate_name == "conduwuit_core";
+
+	let flags = std::env::args().collect::<Vec<_>>();
+
+	let mut enabled_features = Vec::new();
+	append_features(&mut enabled_features, flags);
+
+	let enabled_count = enabled_features.len();
+
+	let import_path = if is_core {
+		quote! { use crate::conduwuit_core; }
+	} else {
+		quote! { use ::conduwuit_core; }
+	};
+
+	let ret = quote! {
+		#[doc(hidden)]
+		mod __compile_introspection {
+			#import_path
+
+			/// Features that were enabled when this crate was compiled
+			const ENABLED: [&str; #enabled_count] = [#( #enabled_features ),*];
+
+			const CRATE_NAME: &str = #crate_name;
+
+			/// Register this crate's features with the global registry during static initialization
+			#[::ctor::ctor]
+			fn register() {
+				conduwuit_core::info::introspection::ENABLED_FEATURES.lock().unwrap().insert(#crate_name, &ENABLED);
+			}
+			#[::ctor::dtor]
+			fn unregister() {
+				conduwuit_core::info::introspection::ENABLED_FEATURES.lock().unwrap().remove(#crate_name);
+			}
+		}
+	};
+
+	Ok(ret)
+}
+
+fn append_features(features: &mut Vec<String>, flags: Vec<String>) {
+	let mut next_is_cfg = false;
+	for flag in flags {
+		let is_cfg = flag == "--cfg";
+		let is_feature = flag.starts_with("feature=");
+		if std::mem::replace(&mut next_is_cfg, is_cfg) && is_feature {
+			if let Some(feature) = flag
+				.split_once('=')
+				.map(|(_, feature)| feature.trim_matches('"'))
+			{
+				features.push(feature.to_owned());
+			}
+		}
+	}
+}

src/macros/mod.rs

@@ -1,4 +1,5 @@
 mod admin;
+mod build_info;
 mod config;
 mod debug;
 mod implement;
@@ -44,6 +45,13 @@ pub fn config_example_generator(args: TokenStream, input: TokenStream) -> TokenS
 	attribute_macro::<ItemStruct, _>(args, input, config::example_generator)
 }
 
+#[proc_macro]
+pub fn introspect_crate(input: TokenStream) -> TokenStream {
+	build_info::introspect(input.into())
+		.unwrap_or_else(|e| e.to_compile_error())
+		.into()
+}
+
 fn attribute_macro<I, F>(args: TokenStream, input: TokenStream, func: F) -> TokenStream
 where
 	F: Fn(I, &[Meta]) -> Result<TokenStream>,

src/main/Cargo.toml

@@ -207,8 +207,10 @@ conduwuit-database.workspace = true
 conduwuit-router.workspace = true
 conduwuit-service.workspace = true
 conduwuit-build-metadata.workspace = true
+conduwuit-macros.workspace = true
 
 clap.workspace = true
+ctor.workspace = true
 console-subscriber.optional = true
 console-subscriber.workspace = true
 const-str.workspace = true

src/main/mod.rs

@@ -4,6 +4,8 @@ use std::sync::{Arc, atomic::Ordering};
 
 use conduwuit_core::{debug_info, error};
 
+conduwuit_macros::introspect_crate! {}
+
 mod clap;
 mod deadlock;
 mod logging;

src/router/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_router"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -99,9 +100,11 @@ bytes.workspace = true
 conduwuit-admin.workspace = true
 conduwuit-api.workspace = true
 conduwuit-core.workspace = true
+conduwuit-macros.workspace = true
 conduwuit-service.workspace = true
 conduwuit-web.workspace = true
 const-str.workspace = true
+ctor.workspace = true
 futures.workspace = true
 http.workspace = true
 http-body-util.workspace = true

src/router/mod.rs

@@ -8,6 +8,8 @@ mod serve;
 
 extern crate conduwuit_core as conduwuit;
 
+conduwuit_macros::introspect_crate! {}
+
 use std::{panic::AssertUnwindSafe, pin::Pin, sync::Arc};
 
 use conduwuit::{Error, Result, Server};

src/service/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_service"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true
@@ -88,7 +89,9 @@ base64.workspace = true
 bytes.workspace = true
 conduwuit-core.workspace = true
 conduwuit-database.workspace = true
+conduwuit-macros.workspace = true
 const-str.workspace = true
+ctor.workspace = true
 either.workspace = true
 futures.workspace = true
 governor.workspace = true

src/service/mod.rs

@@ -3,6 +3,9 @@
 
 extern crate conduwuit_core as conduwuit;
 extern crate conduwuit_database as database;
+
+conduwuit_macros::introspect_crate! {}
+
 mod manager;
 mod migrations;
 mod service;

src/web/Cargo.toml

@@ -2,6 +2,7 @@
 name = "conduwuit_web"
 description.workspace = true
 edition.workspace = true
+homepage.workspace = true
 license.workspace = true
 readme.workspace = true
 repository.workspace = true