26 Commits
v3.0.1 ... main

Author SHA1 Message Date
d6a07c28a0 v4.3.0 2026-02-26 23:47:16 +00:00
56a14aa7c5 feat(hub): add optional TLS certificate/key support to hub start config and bridge 2026-02-26 23:47:16 +00:00
417f62e646 v4.2.0 2026-02-26 23:02:23 +00:00
bda82f32ca feat(core): expose edge peer address in hub events and migrate writers to channel-based, non-blocking framing with stream limits and timeouts 2026-02-26 23:02:23 +00:00
4b06cb1b24 v4.1.0 2026-02-26 17:39:40 +00:00
1aae4b8c8e feat(remoteingress-bin): use mimalloc as the global allocator to reduce memory overhead and improve allocation performance 2026-02-26 17:39:40 +00:00
3474e8c310 v4.0.1 2026-02-26 12:37:40 +00:00
3df20df2a1 fix(hub): cancel per-stream tokens on stream close and avoid duplicate StreamClosed events; bump @types/node devDependency to ^25.3.0 2026-02-26 12:37:39 +00:00
929eec9825 v4.0.0 2026-02-19 08:45:32 +00:00
4e511b3350 BREAKING CHANGE(remoteingress-core): add cancellation tokens and cooperative shutdown; switch event channels to bounded mpsc and improve cleanup 2026-02-19 08:45:32 +00:00
a3af2487b7 v3.3.0 2026-02-18 18:41:25 +00:00
51de25d767 feat(readme): document dynamic port assignment and runtime port updates; clarify TLS multiplexing, frame format, and handshake sequence 2026-02-18 18:41:25 +00:00
7b8c4e1af5 v3.2.1 2026-02-18 18:35:53 +00:00
0459cd2af6 fix(tests): add comprehensive unit and async tests across Rust crates and TypeScript runtime 2026-02-18 18:35:53 +00:00
6fdc9ea918 v3.2.0 2026-02-18 18:20:53 +00:00
d869589663 feat(remoteingress (edge/hub/protocol)): add dynamic port configuration: handshake, FRAME_CONFIG frames, and hot-reloadable listeners 2026-02-18 18:20:53 +00:00
072362a8e6 v3.1.1 2026-02-18 06:01:33 +00:00
b628a5f964 fix(readme): update README: add issue reporting/security section, document connection tokens and token utilities, clarify architecture/API and improve examples/formatting 2026-02-18 06:01:33 +00:00
19e8003c77 v3.1.0 2026-02-17 19:36:40 +00:00
93592bf909 feat(edge): support connection tokens when starting an edge and add token encode/decode utilities 2026-02-17 19:36:40 +00:00
73fc4ea28e v3.0.4 2026-02-17 10:04:54 +00:00
5321e5f0e0 fix(build): bump dev dependencies, update build script, and refresh README docs 2026-02-17 10:04:54 +00:00
1f90b91252 v3.0.3 2026-02-17 09:56:23 +00:00
e25b193f59 fix(rust,ts): initialize rustls ring CryptoProvider at startup; add rustls dependency and features; make native binary lookup platform-aware 2026-02-17 09:56:23 +00:00
ad67f2e265 v3.0.2 2026-02-16 13:15:12 +00:00
ce5074c57d fix(readme): Document Hub/Edge architecture and new RemoteIngressHub/RemoteIngressEdge API; add Rust core binary, protocol and usage details; note removal of ConnectorPublic/ConnectorPrivate (breaking change) 2026-02-16 13:15:12 +00:00
21 changed files with 2330 additions and 392 deletions

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@@ -1,5 +1,120 @@
# Changelog
## 2026-02-26 - 4.3.0 - feat(hub)
add optional TLS certificate/key support to hub start config and bridge
- TypeScript: add tls.certPem and tls.keyPem to IHubConfig and include tlsCertPem/tlsKeyPem in startHub bridge command when both are provided
- TypeScript: extend startHub params with tlsCertPem and tlsKeyPem and conditionally send them
- Rust: change HubConfig serde attributes for tls_cert_pem and tls_key_pem from skip to default so absent PEM fields deserialize as None
- Enables optional provisioning of TLS certificate and key to the hub when provided from the JS side
## 2026-02-26 - 4.2.0 - feat(core)
expose edge peer address in hub events and migrate writers to channel-based, non-blocking framing with stream limits and timeouts
- Add peerAddr to ConnectedEdgeStatus and HubEvent::EdgeConnected and surface it to the TS frontend event (management:edgeConnected).
- Replace Arc<Mutex<WriteHalf>> writers with dedicated mpsc channel writer tasks in both hub and edge crates to serialize writes off the main tasks.
- Use non-blocking try_send for data frames to avoid head-of-line blocking and drop frames with warnings when channels are full.
- Introduce MAX_STREAMS_PER_EDGE semaphore to limit concurrent streams per edge and reject excess opens with a CLOSE_BACK frame.
- Add a 10s timeout when connecting to SmartProxy to avoid hanging connections.
- Ensure writer tasks are aborted on shutdown/cleanup and propagate cancellation tokens appropriately.
## 2026-02-26 - 4.1.0 - feat(remoteingress-bin)
use mimalloc as the global allocator to reduce memory overhead and improve allocation performance
- added mimalloc = "0.1" dependency to rust/crates/remoteingress-bin/Cargo.toml
- registered mimalloc as the #[global_allocator] in rust/crates/remoteingress-bin/src/main.rs
- updated Cargo.lock with libmimalloc-sys and mimalloc package entries
## 2026-02-26 - 4.0.1 - fix(hub)
cancel per-stream tokens on stream close and avoid duplicate StreamClosed events; bump @types/node devDependency to ^25.3.0
- Add CancellationToken to per-stream entries so each stream can be cancelled independently.
- Ensure StreamClosed event is only emitted when a stream was actually present (guards against duplicate events).
- Cancel the stream-specific token on FRAME_CLOSE to stop associated tasks and free resources.
- DevDependency bump: @types/node updated from ^25.2.3 to ^25.3.0.
## 2026-02-19 - 4.0.0 - BREAKING CHANGE(remoteingress-core)
add cancellation tokens and cooperative shutdown; switch event channels to bounded mpsc and improve cleanup
- Introduce tokio-util::sync::CancellationToken for hub/edge and per-connection/stream cancellation, enabling cooperative shutdown of spawned tasks.
- Replace unbounded mpsc channels with bounded mpsc::channel(1024) and switch from UnboundedSender/Receiver to Sender/Receiver; use try_send where non-blocking sends are appropriate.
- Wire cancellation tokens through edge and hub codepaths: child tokens per connection, per-port, per-stream; cancel tokens in stop() and Drop impls to ensure deterministic task termination and cleanup.
- Reset stream id counters and clear listener state on reconnect; improved error handling around accept/read loops using tokio::select! and cancellation checks.
- Update Cargo.toml and Cargo.lock to add tokio-util (and related futures entries) as dependencies.
- BREAKING: public API/types changed — take_event_rx return types and event_tx/event_rx fields now use bounded mpsc::Sender/mpsc::Receiver instead of the unbounded variants; callers must adapt to the new types and bounded behavior.
## 2026-02-18 - 3.3.0 - feat(readme)
document dynamic port assignment and runtime port updates; clarify TLS multiplexing, frame format, and handshake sequence
- Adds documentation for dynamic port configuration: hub-assigned listen ports, hot-reloadable via FRAME_CONFIG frames
- Introduces new FRAME type CONFIG (0x06) and describes payload as JSON; notes immediate push of port changes to connected edges
- Clarifies that the tunnel is a single encrypted TLS multiplexed connection to the hub (preserves PROXY v1 behavior)
- Specifies frame integer fields are big-endian and that stream IDs are 32-bit unsigned integers
- Adds new events: portsAssigned and portsUpdated, and updates examples showing updateAllowedEdges usage and live port changes
## 2026-02-18 - 3.2.1 - fix(tests)
add comprehensive unit and async tests across Rust crates and TypeScript runtime
- Added IPC serialization tests in remoteingress-bin (IPC request/response/event)
- Added serde and async tests for Edge and Handshake configs and EdgeEvent/EdgeStatus in remoteingress-core (edge.rs)
- Added extensive Hub tests: constant_time_eq, PROXY header port parsing, serde/camelCase checks, Hub events and async TunnelHub behavior (hub.rs)
- Added STUN parser unit tests including XOR_MAPPED_ADDRESS, MAPPED_ADDRESS fallback, truncated attribute handling and other edge cases (stun.rs)
- Added protocol frame encoding and FrameReader tests covering all frame types, payload limits and EOF conditions (remoteingress-protocol)
- Added TypeScript Node tests for token encode/decode edge cases and RemoteIngressHub/RemoteIngressEdge class basics (test/*.node.ts)
## 2026-02-18 - 3.2.0 - feat(remoteingress (edge/hub/protocol))
add dynamic port configuration: handshake, FRAME_CONFIG frames, and hot-reloadable listeners
- Introduce a JSON handshake from hub -> edge with initial listen ports and stun interval so edges can configure listeners at connect time.
- Add FRAME_CONFIG (0x06) to the protocol and implement runtime config updates pushed from hub to connected edges.
- Edge now applies initial ports and supports hot-reloading: spawn/abort listeners when ports change, and emit PortsAssigned / PortsUpdated events.
- Hub now stores allowed edge metadata (listen_ports, stun_interval_secs), sends handshake responses on auth, and forwards config updates to connected edges.
- TypeScript bridge/client updated to emit new port events and periodically log status; updateAllowedEdges API accepts listenPorts and stunIntervalSecs.
- Stun interval handling moved to use handshake-provided/stored value instead of config.listen_ports being static.
## 2026-02-18 - 3.1.1 - fix(readme)
update README: add issue reporting/security section, document connection tokens and token utilities, clarify architecture/API and improve examples/formatting
- Added an 'Issue Reporting and Security' section linking to community.foss.global for bug/security reports and contributor onboarding.
- Documented connection tokens: encodeConnectionToken/decodeConnectionToken utilities, token format (base64url), and examples for hub and edge provisioning.
- Clarified Hub/Edge usage and examples: condensed event handlers, added token-based start() example, and provided explicit config alternative.
- Improved README formatting: added emojis, rephrased architecture descriptions, fixed wording and license path capitalization, and expanded example scenarios and interfaces.
## 2026-02-17 - 3.1.0 - feat(edge)
support connection tokens when starting an edge and add token encode/decode utilities
- Add classes.token.ts with encodeConnectionToken/decodeConnectionToken using a base64url compact JSON format
- Export token utilities from ts/index.ts
- RemoteIngressEdge.start now accepts a { token } option and decodes it to an IEdgeConfig before starting
- Add tests covering export availability, encode→decode roundtrip, malformed token, and missing fields
- Non-breaking change — recommend a minor version bump
## 2026-02-17 - 3.0.4 - fix(build)
bump dev dependencies, update build script, and refresh README docs
- Bumped devDependencies: @git.zone/tsbuild ^2.1.25 → ^4.1.2, @git.zone/tsbundle ^2.0.5 → ^2.8.3, @git.zone/tsrun ^1.2.46 → ^2.0.1, @git.zone/tstest ^1.0.44 → ^3.1.8, @push.rocks/tapbundle ^5.0.15 → ^6.0.3, @types/node ^20.8.7 → ^25.2.3
- Bumped runtime dependency: @push.rocks/qenv ^6.0.5 → ^6.1.3
- Changed build script: replaced "tsbuild --web --allowimplicitany" with "tsbuild tsfolders --allowimplicitany" (kept tsrust invocation)
- README updates: added RustBridge notes (localPaths must be full file paths), production binary naming conventions, rust core uses ring as rustls provider; removed emoji from example console output; clarified stunIntervalSecs is optional; renamed example status variable to edgeStatus; minor wire-protocol formatting and wording/legal text tweaks
## 2026-02-17 - 3.0.3 - fix(rust,ts)
initialize rustls ring CryptoProvider at startup; add rustls dependency and features; make native binary lookup platform-aware
- Install rustls::crypto::ring default_provider at startup to ensure ring-based crypto is available before any TLS usage.
- Add rustls dependency to remoteingress-bin and update remoteingress-core rustls configuration (disable default-features; enable ring, logging, std, tls12).
- Adjust TS classes to prefer platform-suffixed production binaries, add exact fallback names, and include explicit cargo output paths for release/debug.
- Cargo.lock updated to include rustls entry.
## 2026-02-16 - 3.0.2 - fix(readme)
Document Hub/Edge architecture and new RemoteIngressHub/RemoteIngressEdge API; add Rust core binary, protocol and usage details; note removal of ConnectorPublic/ConnectorPrivate (breaking change)
- Adds comprehensive README describing v3 Hub↔Edge topology and usage examples
- Introduces Rust core binary (remoteingress-bin) and RustBridge IPC via @push.rocks/smartrust
- Documents custom multiplexed binary frame protocol over TLS and PROXY protocol v1 for client IP preservation
- Notes STUN-based public IP discovery and cross-compiled linux/amd64 and linux/arm64 binaries
- Calls out removal/rename of ConnectorPublic/ConnectorPrivate to RemoteIngressHub/RemoteIngressEdge (breaking API change)
- Updates install instruction to use pnpm and expands API reference, events, and examples
## 2026-02-16 - 3.0.1 - fix(remoteingress)
no changes detected in diff; no code modifications to release

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@@ -1,6 +1,6 @@
{
"name": "@serve.zone/remoteingress",
"version": "3.0.1",
"version": "4.3.0",
"private": false,
"description": "Edge ingress tunnel for DcRouter - accepts incoming TCP connections at network edge and tunnels them to DcRouter SmartProxy preserving client IP via PROXY protocol v1.",
"main": "dist_ts/index.js",
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"author": "Task Venture Capital GmbH",
"license": "MIT",
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"repository": {

174
pnpm-lock.yaml generated
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'@git.zone/tstest@1.11.5(socks@2.8.7)(typescript@5.9.3)':
'@git.zone/tstest@3.1.8(socks@2.8.7)(typescript@5.9.3)':
dependencies:
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'@push.rocks/smartshell': 3.3.0
'@push.rocks/smarttime': 4.2.3
'@types/ws': 8.18.1
@@ -5169,7 +5178,7 @@ snapshots:
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minimatch: 10.2.0
transitivePeerDependencies:
- aws-crt
'@push.rocks/smartbuffer@3.0.5':
dependencies:
uint8array-extras: 1.5.0
@@ -5658,12 +5682,6 @@ snapshots:
'@push.rocks/smartpromise': 4.2.3
tree-kill: 1.2.2
'@push.rocks/smartexpect@1.6.1':
dependencies:
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fast-deep-equal: 3.1.3
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dependencies:
'@push.rocks/smartdelay': 3.0.5
@@ -5986,6 +6004,16 @@ snapshots:
- aws-crt
- supports-color
'@push.rocks/smarts3@3.0.3':
dependencies:
'@push.rocks/smartbucket': 4.4.1
'@push.rocks/smartfs': 1.3.1
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'@push.rocks/smartxml': 2.0.0
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transitivePeerDependencies:
- aws-crt
'@push.rocks/smartshell@3.3.0':
dependencies:
'@push.rocks/smartdelay': 3.0.5
@@ -6095,7 +6123,7 @@ snapshots:
dependencies:
yaml: 2.8.2
'@push.rocks/tapbundle@5.6.3(socks@2.8.7)':
'@push.rocks/tapbundle@6.0.3(socks@2.8.7)':
dependencies:
'@open-wc/testing': 4.0.0
'@push.rocks/consolecolor': 2.0.3
@@ -6103,7 +6131,7 @@ snapshots:
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'@push.rocks/smartdelay': 3.0.5
'@push.rocks/smartenv': 5.0.13
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'@push.rocks/smartfile': 11.2.7
'@push.rocks/smartjson': 5.2.0
'@push.rocks/smartmongo': 2.2.0(socks@2.8.7)
@@ -6708,14 +6736,14 @@ snapshots:
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dependencies:
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'@types/node': 25.3.0
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dependencies:
'@types/connect': 3.4.38
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/buffer-json@2.0.3': {}
@@ -6732,17 +6760,17 @@ snapshots:
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dependencies:
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'@types/node': 25.3.0
source-map: 0.6.1
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dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/content-disposition@0.5.9': {}
@@ -6753,11 +6781,11 @@ snapshots:
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'@types/express': 5.0.6
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dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/debounce@1.2.4': {}
@@ -6769,7 +6797,7 @@ snapshots:
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dependencies:
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'@types/node': 25.3.0
'@types/qs': 6.14.0
'@types/range-parser': 1.2.7
'@types/send': 1.2.1
@@ -6783,7 +6811,7 @@ snapshots:
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dependencies:
'@types/jsonfile': 6.1.4
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/hast@3.0.4':
dependencies:
@@ -6817,7 +6845,7 @@ snapshots:
'@types/jsonfile@6.1.4':
dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/keygrip@1.0.6': {}
@@ -6834,7 +6862,7 @@ snapshots:
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'@types/koa-compose': 3.2.9
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/mdast@4.0.4':
dependencies:
@@ -6848,20 +6876,20 @@ snapshots:
'@types/mute-stream@0.0.4':
dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
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dependencies:
undici-types: 6.21.0
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'@types/node@25.3.0':
dependencies:
undici-types: 7.18.2
'@types/parse5@6.0.3': {}
'@types/ping@0.4.4': {}
@@ -6876,18 +6904,18 @@ snapshots:
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dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/semver@7.7.1': {}
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dependencies:
'@types/http-errors': 2.0.5
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/sinon-chai@3.2.12':
dependencies:
@@ -6906,11 +6934,11 @@ snapshots:
'@types/tar-stream@3.1.4':
dependencies:
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'@types/node': 25.3.0
'@types/through2@2.0.41':
dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/triple-beam@1.3.5': {}
@@ -6938,11 +6966,11 @@ snapshots:
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dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/ws@8.18.1':
dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
'@types/yargs-parser@21.0.3': {}
@@ -6952,7 +6980,7 @@ snapshots:
'@types/yauzl@2.10.3':
dependencies:
'@types/node': 20.19.33
'@types/node': 25.3.0
optional: true
'@ungap/structured-clone@1.3.0': {}
@@ -7557,7 +7585,7 @@ snapshots:
engine.io@6.6.4:
dependencies:
'@types/cors': 2.8.19
'@types/node': 20.19.33
'@types/node': 25.3.0
accepts: 1.3.8
base64id: 2.0.0
cookie: 0.7.2
@@ -8271,7 +8299,7 @@ snapshots:
jest-util@29.7.0:
dependencies:
'@jest/types': 29.6.3
'@types/node': 20.19.33
'@types/node': 25.3.0
chalk: 4.1.2
ci-info: 3.9.0
graceful-fs: 4.2.11
@@ -9779,6 +9807,8 @@ snapshots:
undici-types@6.21.0: {}
undici-types@7.18.2: {}
unified@11.0.5:
dependencies:
'@types/unist': 3.0.3

View File

@@ -1,3 +1,12 @@
* this module is part of the @serve.zone stack
* it is used to reach private clusters from outside
* it can be used to create private tunnels to private networks
* This module is part of the @serve.zone stack
* v3.0.0+ uses a Hub/Edge architecture with a Rust core binary (`remoteingress-bin`)
* TypeScript classes `RemoteIngressHub` and `RemoteIngressEdge` bridge to Rust via `@push.rocks/smartrust` RustBridge IPC
* Custom multiplexed binary frame protocol over TLS for tunneling TCP connections
* PROXY protocol v1 preserves client IP when forwarding to SmartProxy/DcRouter
* Edge authenticates to Hub via shared secret over TLS
* STUN-based public IP discovery at the edge (Cloudflare STUN server)
* Cross-compiled Rust binary for linux/amd64 and linux/arm64
* Old `ConnectorPublic`/`ConnectorPrivate` classes no longer exist (removed in v2.0.0/v3.0.0)
* `localPaths` in RustBridge config must be full file paths (not directories) — smartrust's `RustBinaryLocator` checks `isExecutable()` on each entry directly
* Production binaries are named with platform suffixes: `remoteingress-bin_linux_amd64`, `remoteingress-bin_linux_arm64`
* Rust core uses `ring` as the rustls CryptoProvider (explicitly installed in main.rs, aws-lc-rs disabled via default-features=false)

360
readme.md
View File

@@ -1,107 +1,363 @@
# @serve.zone/remoteingress
Provides a service for creating private tunnels and reaching private clusters from the outside as part of the @serve.zone stack.
Edge ingress tunnel for DcRouter — accepts incoming TCP connections at the network edge and tunnels them over a single encrypted TLS connection to a DcRouter SmartProxy instance, preserving the original client IP via PROXY protocol v1.
## Issue Reporting and Security
For reporting bugs, issues, or security vulnerabilities, please visit [community.foss.global/](https://community.foss.global/). This is the central community hub for all issue reporting. Developers who sign and comply with our contribution agreement and go through identification can also get a [code.foss.global/](https://code.foss.global/) account to submit Pull Requests directly.
## Install
To install `@serve.zone/remoteingress`, run the following command in your terminal:
```sh
npm install @serve.zone/remoteingress
pnpm install @serve.zone/remoteingress
```
This command will download and install the remoteingress package and its dependencies into your project.
## 🏗️ Architecture
## Usage
`@serve.zone/remoteingress` uses a **Hub/Edge** topology with a high-performance Rust core and a TypeScript API surface:
`@serve.zone/remoteingress` is designed to facilitate the creation of secure private tunnels and enable access to private clusters from external sources, offering an integral part of the @serve.zone stack infrastructure. Below, we illustrate how to employ this package within your project, leveraging TypeScript and ESM syntax for modern, type-safe, and modular code.
```
┌─────────────────────┐ TLS Tunnel ┌─────────────────────┐
│ Network Edge │ ◄══════════════════════════► │ Private Cluster │
│ │ (multiplexed frames + │ │
│ RemoteIngressEdge │ shared-secret auth) │ RemoteIngressHub │
│ Accepts client TCP │ │ Forwards to │
│ connections on │ │ SmartProxy on │
│ hub-assigned ports │ │ local ports │
└─────────────────────┘ └─────────────────────┘
▲ │
│ TCP from end users ▼
Internet DcRouter / SmartProxy
```
### Prerequisites
| Component | Role |
|-----------|------|
| **RemoteIngressEdge** | Deployed at the network edge (e.g. a VPS or cloud instance). Listens on ports assigned by the hub, accepts raw TCP connections, and multiplexes them over a single TLS tunnel to the hub. Ports are hot-reloadable — the hub can change them at runtime. |
| **RemoteIngressHub** | Deployed alongside DcRouter/SmartProxy in a private cluster. Accepts edge connections, demuxes streams, and forwards each to SmartProxy with a PROXY protocol v1 header so the real client IP is preserved. Controls which ports each edge listens on. |
| **Rust Binary** (`remoteingress-bin`) | The performance-critical networking core. Managed via `@push.rocks/smartrust` RustBridge IPC — you never interact with it directly. Cross-compiled for `linux/amd64` and `linux/arm64`. |
Ensure that you have Node.js and TypeScript installed in your environment. Your project should be set up with TypeScript support, and you might want to familiarize yourself with basic networking concepts and TLS/SSL for secure communication.
### ✨ Key Features
### Importing and Initializing Connectors
- 🔒 **TLS-encrypted tunnel** between edge and hub (auto-generated self-signed cert or bring your own)
- 🔀 **Multiplexed streams** — thousands of client connections flow over a single tunnel
- 🌐 **PROXY protocol v1** — SmartProxy sees the real client IP, not the tunnel IP
- 🔑 **Shared-secret authentication** — edges must present valid credentials to connect
- 🎫 **Connection tokens** — encode all connection details into a single opaque string
- 📡 **STUN-based public IP discovery** — the edge automatically discovers its public IP via Cloudflare STUN
- 🔄 **Auto-reconnect** with exponential backoff if the tunnel drops
- 🎛️ **Dynamic port configuration** — the hub assigns listen ports per edge and can hot-reload them at runtime via `FRAME_CONFIG` frames
- 📣 **Event-driven** — both Hub and Edge extend `EventEmitter` for real-time monitoring
-**Rust core** — all frame encoding, TLS, and TCP proxying happen in native code for maximum throughput
`@serve.zone/remoteingress` offers two primary components: `ConnectorPublic` and `ConnectorPrivate`. Here's how to use them:
## 🚀 Usage
#### Setup ConnectorPublic
Both classes are imported from the package and communicate with the Rust binary under the hood. All you need to do is configure and start them.
`ConnectorPublic` acts as a gateway, accepting incoming tunnel connections from `ConnectorPrivate` instances and facilitating secure communication between the internet and your private network.
### Setting Up the Hub (Private Cluster Side)
```typescript
import { ConnectorPublic } from '@serve.zone/remoteingress';
import { RemoteIngressHub } from '@serve.zone/remoteingress';
// Initialize ConnectorPublic
const publicConnector = new ConnectorPublic({
tlsOptions: {
key: fs.readFileSync("<path-to-your-tls/key.pem>"),
cert: fs.readFileSync("<path-to-your-cert/cert.pem>"),
// Consider including 'ca' and 'passphrase' if required for your setup
const hub = new RemoteIngressHub();
// Listen for events
hub.on('edgeConnected', ({ edgeId }) => {
console.log(`Edge ${edgeId} connected`);
});
hub.on('edgeDisconnected', ({ edgeId }) => {
console.log(`Edge ${edgeId} disconnected`);
});
hub.on('streamOpened', ({ edgeId, streamId }) => {
console.log(`Stream ${streamId} opened from edge ${edgeId}`);
});
hub.on('streamClosed', ({ edgeId, streamId }) => {
console.log(`Stream ${streamId} closed from edge ${edgeId}`);
});
// Start the hub — it will listen for incoming edge TLS connections
await hub.start({
tunnelPort: 8443, // port edges connect to (default: 8443)
targetHost: '127.0.0.1', // SmartProxy host to forward streams to (default: 127.0.0.1)
});
// Register which edges are allowed to connect, including their listen ports
await hub.updateAllowedEdges([
{
id: 'edge-nyc-01',
secret: 'supersecrettoken1',
listenPorts: [80, 443], // ports the edge should listen on
stunIntervalSecs: 300, // STUN discovery interval (default: 300)
},
listenPort: 443 // Example listen port; adjust based on your needs
});
{
id: 'edge-fra-02',
secret: 'supersecrettoken2',
listenPorts: [443, 8080],
},
]);
// Dynamically update ports for a connected edge — changes are pushed instantly
await hub.updateAllowedEdges([
{
id: 'edge-nyc-01',
secret: 'supersecrettoken1',
listenPorts: [80, 443, 8443], // added port 8443 — edge picks it up in real time
},
]);
// Check status at any time
const status = await hub.getStatus();
console.log(status);
// {
// running: true,
// tunnelPort: 8443,
// connectedEdges: [
// { edgeId: 'edge-nyc-01', connectedAt: 1700000000, activeStreams: 12 }
// ]
// }
// Graceful shutdown
await hub.stop();
```
#### Setup ConnectorPrivate
### Setting Up the Edge (Network Edge Side)
`ConnectorPrivate` establishes a secure tunnel to `ConnectorPublic`, effectively bridging your internal services with the external point of access.
The edge can be configured in two ways: with an **opaque connection token** (recommended) or with explicit config fields.
#### Option A: Connection Token (Recommended)
A single token encodes all connection details — ideal for provisioning edges at scale:
```typescript
import { ConnectorPrivate } from '@serve.zone/remoteingress';
import { RemoteIngressEdge } from '@serve.zone/remoteingress';
// Initialize ConnectorPrivate pointing to your ConnectorPublic instance
const privateConnector = new ConnectorPrivate({
publicHost: 'your.public.domain.tld',
publicPort: 443, // Ensure this matches the listening port of ConnectorPublic
tlsOptions: {
// You might want to specify TLS options here, similar to ConnectorPublic
}
const edge = new RemoteIngressEdge();
edge.on('tunnelConnected', () => console.log('Tunnel established'));
edge.on('tunnelDisconnected', () => console.log('Tunnel lost — will auto-reconnect'));
edge.on('publicIpDiscovered', ({ ip }) => console.log(`Public IP: ${ip}`));
edge.on('portsAssigned', ({ listenPorts }) => console.log(`Listening on ports: ${listenPorts}`));
edge.on('portsUpdated', ({ listenPorts }) => console.log(`Ports updated: ${listenPorts}`));
// Single token contains hubHost, hubPort, edgeId, and secret
await edge.start({
token: 'eyJoIjoiaHViLmV4YW1wbGUuY29tIiwicCI6ODQ0MywiZSI6ImVkZ2UtbnljLTAxIiwicyI6InN1cGVyc2VjcmV0dG9rZW4xIn0',
});
```
### Secure Communication
#### Option B: Explicit Config
It's imperative to ensure that the communication between `ConnectorPublic` and `ConnectorPrivate` is secure:
```typescript
import { RemoteIngressEdge } from '@serve.zone/remoteingress';
- Always use valid TLS certificates.
- Prefer using certificates issued by recognized Certificate Authorities (CA).
- Optionally, configure mutual TLS (mTLS) by requiring client certificates for an added layer of security.
const edge = new RemoteIngressEdge();
### Advanced Usage
edge.on('tunnelConnected', () => console.log('Tunnel established'));
edge.on('tunnelDisconnected', () => console.log('Tunnel lost — will auto-reconnect'));
edge.on('publicIpDiscovered', ({ ip }) => console.log(`Public IP: ${ip}`));
edge.on('portsAssigned', ({ listenPorts }) => console.log(`Listening on ports: ${listenPorts}`));
edge.on('portsUpdated', ({ listenPorts }) => console.log(`Ports updated: ${listenPorts}`));
Both connectors can be finely tuned:
await edge.start({
hubHost: 'hub.example.com', // hostname or IP of the hub
hubPort: 8443, // must match hub's tunnelPort (default: 8443)
edgeId: 'edge-nyc-01', // unique edge identifier
secret: 'supersecrettoken1', // must match the hub's allowed edge secret
});
- **Logging and Monitoring:** Integrate with your existing logging and monitoring systems to keep tabs on tunnel activity, performance metrics, and potential security anomalies.
// Check status at any time
const edgeStatus = await edge.getStatus();
console.log(edgeStatus);
// {
// running: true,
// connected: true,
// publicIp: '203.0.113.42',
// activeStreams: 5,
// listenPorts: [80, 443]
// }
- **Custom Handlers:** Implement custom traffic handling logic for specialized routing, filtering, or protocol-specific processing.
// Graceful shutdown
await edge.stop();
```
- **Automation:** Automate the deployment and scaling of both `ConnectorPublic` and `ConnectorPrivate` instances using infrastructure-as-code (IAC) tools and practices, ensuring that your tunneling infrastructure can dynamically adapt to the ever-changing needs of your services.
### 🎫 Connection Tokens
### Example Scenarios
Connection tokens let you distribute a single opaque string instead of four separate config values. The hub operator generates the token; the edge operator just pastes it in.
1. **Securing Application APIs:** Use `@serve.zone/remoteingress` to expose private APIs to your frontend deployed on a public cloud, ensuring that only your infrastructure can access these endpoints.
```typescript
import { encodeConnectionToken, decodeConnectionToken } from '@serve.zone/remoteingress';
2. **Remote Database Access:** Securely access databases within a private VPC from your local development machine without opening direct access to the internet.
// Hub side: generate a token for a new edge
const token = encodeConnectionToken({
hubHost: 'hub.example.com',
hubPort: 8443,
edgeId: 'edge-nyc-01',
secret: 'supersecrettoken1',
});
console.log(token);
// => 'eyJoIjoiaHViLmV4YW1wbGUuY29tIiwi...'
3. **Service Mesh Integration:** Integrate `@serve.zone/remoteingress` as part of a service mesh setup to securely connect services across multiple clusters with robust identity and encryption at the tunnel level.
// Edge side: inspect a token (optional — start() does this automatically)
const data = decodeConnectionToken(token);
console.log(data);
// {
// hubHost: 'hub.example.com',
// hubPort: 8443,
// edgeId: 'edge-nyc-01',
// secret: 'supersecrettoken1'
// }
```
For detailed documentation, API references, and additional use cases, please refer to the inline documentation and source code within the package. Always prioritize security and robustness when dealing with network ingress to protect your infrastructure and data from unauthorized access and threats.
Tokens are base64url-encoded (URL-safe, no padding) — safe to pass as environment variables, CLI arguments, or store in config files.
## 📖 API Reference
### `RemoteIngressHub`
| Method / Property | Description |
|-------------------|-------------|
| `start(config?)` | Spawns the Rust binary and starts the tunnel listener. Config: `{ tunnelPort?: number, targetHost?: string }` |
| `stop()` | Gracefully shuts down the hub and kills the Rust process. |
| `updateAllowedEdges(edges)` | Dynamically update which edges are authorized and what ports they listen on. Each edge: `{ id: string, secret: string, listenPorts?: number[], stunIntervalSecs?: number }`. If ports change for a connected edge, the update is pushed immediately via a `FRAME_CONFIG` frame. |
| `getStatus()` | Returns current hub status including connected edges and active stream counts. |
| `running` | `boolean` — whether the Rust binary is alive. |
**Events:** `edgeConnected`, `edgeDisconnected`, `streamOpened`, `streamClosed`
### `RemoteIngressEdge`
| Method / Property | Description |
|-------------------|-------------|
| `start(config)` | Spawns the Rust binary and connects to the hub. Accepts `{ token: string }` or `IEdgeConfig`. Listen ports are received from the hub during handshake. |
| `stop()` | Gracefully shuts down the edge and kills the Rust process. |
| `getStatus()` | Returns current edge status including connection state, public IP, listen ports, and active streams. |
| `running` | `boolean` — whether the Rust binary is alive. |
**Events:** `tunnelConnected`, `tunnelDisconnected`, `publicIpDiscovered`, `portsAssigned`, `portsUpdated`
### Token Utilities
| Function | Description |
|----------|-------------|
| `encodeConnectionToken(data)` | Encodes `IConnectionTokenData` into a base64url token string. |
| `decodeConnectionToken(token)` | Decodes a token back into `IConnectionTokenData`. Throws on malformed or incomplete tokens. |
### Interfaces
```typescript
interface IHubConfig {
tunnelPort?: number; // default: 8443
targetHost?: string; // default: '127.0.0.1'
}
interface IEdgeConfig {
hubHost: string;
hubPort?: number; // default: 8443
edgeId: string;
secret: string;
}
interface IConnectionTokenData {
hubHost: string;
hubPort: number;
edgeId: string;
secret: string;
}
```
## 🔌 Wire Protocol
The tunnel uses a custom binary frame protocol over TLS:
```
[stream_id: 4 bytes BE][type: 1 byte][length: 4 bytes BE][payload: N bytes]
```
| Frame Type | Value | Direction | Purpose |
|------------|-------|-----------|---------|
| `OPEN` | `0x01` | Edge → Hub | Open a new stream; payload is PROXY v1 header |
| `DATA` | `0x02` | Edge → Hub | Client data flowing upstream |
| `CLOSE` | `0x03` | Edge → Hub | Client closed the connection |
| `DATA_BACK` | `0x04` | Hub → Edge | Response data flowing downstream |
| `CLOSE_BACK` | `0x05` | Hub → Edge | Upstream (SmartProxy) closed the connection |
| `CONFIG` | `0x06` | Hub → Edge | Runtime configuration update (e.g. port changes); payload is JSON |
Max payload size per frame: **16 MB**. Stream IDs are 32-bit unsigned integers.
### Handshake Sequence
1. Edge opens a TLS connection to the hub
2. Edge sends: `EDGE <edgeId> <secret>\n`
3. Hub verifies credentials (constant-time comparison) and responds with JSON: `{"listenPorts":[...],"stunIntervalSecs":300}\n`
4. Edge starts TCP listeners on the assigned ports
5. Frame protocol begins — `OPEN`/`DATA`/`CLOSE` frames flow in both directions
6. Hub can push `CONFIG` frames at any time to update the edge's listen ports
## 💡 Example Scenarios
### 1. Expose a Private Kubernetes Cluster to the Internet
Deploy an Edge on a public VPS, point your DNS to the VPS IP. The Edge tunnels all traffic to the Hub running inside the cluster, which hands it off to SmartProxy/DcRouter. Your cluster stays fully private — no public-facing ports needed.
### 2. Multi-Region Edge Ingress
Run multiple Edges in different geographic regions (NYC, Frankfurt, Tokyo) all connecting to a single Hub. Use GeoDNS to route users to their nearest Edge. The Hub sees the real client IPs via PROXY protocol regardless of which edge they connected through.
### 3. Secure API Exposure
Your backend runs on a private network with no direct internet access. An Edge on a minimal cloud instance acts as the only public entry point. TLS tunnel + shared-secret auth ensure only your authorized Edge can forward traffic.
### 4. Token-Based Edge Provisioning
Generate connection tokens on the hub side and distribute them to edge operators. Each edge only needs a single token string to connect — no manual configuration of host, port, ID, and secret.
```typescript
// Hub operator generates token
const token = encodeConnectionToken({
hubHost: 'hub.prod.example.com',
hubPort: 8443,
edgeId: 'edge-tokyo-01',
secret: 'generated-secret-abc123',
});
// Send `token` to the edge operator via secure channel
// Edge operator starts with just the token
const edge = new RemoteIngressEdge();
await edge.start({ token });
```
### 5. Dynamic Port Management
The hub controls which ports each edge listens on. Ports can be changed at runtime without restarting the edge — the hub pushes a `CONFIG` frame and the edge hot-reloads its TCP listeners.
```typescript
// Initially assign ports 80 and 443
await hub.updateAllowedEdges([
{ id: 'edge-nyc-01', secret: 'secret', listenPorts: [80, 443] },
]);
// Later, add port 8080 — the connected edge picks it up instantly
await hub.updateAllowedEdges([
{ id: 'edge-nyc-01', secret: 'secret', listenPorts: [80, 443, 8080] },
]);
```
## License and Legal Information
This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository.
This repository contains open-source code licensed under the MIT License. A copy of the license can be found in the [LICENSE](./LICENSE) file.
**Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.
### Trademarks
This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.
This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH or third parties, and are not included within the scope of the MIT license granted herein.
Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines or the guidelines of the respective third-party owners, and any usage must be approved in writing. Third-party trademarks used herein are the property of their respective owners and used only in a descriptive manner, e.g. for an implementation of an API or similar.
### Company Information
Task Venture Capital GmbH
Registered at District court Bremen HRB 35230 HB, Germany
Task Venture Capital GmbH
Registered at District Court Bremen HRB 35230 HB, Germany
For any legal inquiries or if you require further information, please contact us via email at hello@task.vc.
For any legal inquiries or further information, please contact us via email at hello@task.vc.
By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.

47
rust/Cargo.lock generated
View File

@@ -234,6 +234,18 @@ version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
[[package]]
name = "futures-core"
version = "0.3.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d"
[[package]]
name = "futures-sink"
version = "0.3.32"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c39754e157331b013978ec91992bde1ac089843443c49cbc7f46150b0fad0893"
[[package]]
name = "getrandom"
version = "0.2.17"
@@ -315,6 +327,16 @@ version = "0.2.182"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6800badb6cb2082ffd7b6a67e6125bb39f18782f793520caee8cb8846be06112"
[[package]]
name = "libmimalloc-sys"
version = "0.1.44"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "667f4fec20f29dfc6bc7357c582d91796c169ad7e2fce709468aefeb2c099870"
dependencies = [
"cc",
"libc",
]
[[package]]
name = "lock_api"
version = "0.4.14"
@@ -336,6 +358,15 @@ version = "2.8.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
[[package]]
name = "mimalloc"
version = "0.1.48"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e1ee66a4b64c74f4ef288bcbb9192ad9c3feaad75193129ac8509af543894fd8"
dependencies = [
"libmimalloc-sys",
]
[[package]]
name = "mio"
version = "1.1.1"
@@ -507,8 +538,10 @@ dependencies = [
"clap",
"env_logger",
"log",
"mimalloc",
"remoteingress-core",
"remoteingress-protocol",
"rustls",
"serde",
"serde_json",
"tokio",
@@ -527,6 +560,7 @@ dependencies = [
"serde_json",
"tokio",
"tokio-rustls",
"tokio-util",
]
[[package]]
@@ -757,6 +791,19 @@ dependencies = [
"tokio",
]
[[package]]
name = "tokio-util"
version = "0.7.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ae9cec805b01e8fc3fd2fe289f89149a9b66dd16786abd8b19cfa7b48cb0098"
dependencies = [
"bytes",
"futures-core",
"futures-sink",
"pin-project-lite",
"tokio",
]
[[package]]
name = "unicode-ident"
version = "1.0.24"

View File

@@ -16,3 +16,5 @@ serde = { version = "1", features = ["derive"] }
serde_json = "1"
log = "0.4"
env_logger = "0.11"
rustls = { version = "0.23", default-features = false, features = ["ring"] }
mimalloc = "0.1"

View File

@@ -1,3 +1,6 @@
#[global_allocator]
static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
use clap::Parser;
use serde::{Deserialize, Serialize};
use std::sync::Arc;
@@ -85,6 +88,11 @@ fn send_error(id: &str, error: &str) {
#[tokio::main]
async fn main() {
// Install the ring CryptoProvider before any TLS usage
rustls::crypto::ring::default_provider()
.install_default()
.expect("Failed to install rustls ring CryptoProvider");
let cli = Cli::parse();
if !cli.management {
@@ -159,10 +167,10 @@ async fn handle_request(
tokio::spawn(async move {
while let Some(event) = event_rx.recv().await {
match &event {
HubEvent::EdgeConnected { edge_id } => {
HubEvent::EdgeConnected { edge_id, peer_addr } => {
send_event(
"edgeConnected",
serde_json::json!({ "edgeId": edge_id }),
serde_json::json!({ "edgeId": edge_id, "peerAddr": peer_addr }),
);
}
HubEvent::EdgeDisconnected { edge_id } => {
@@ -296,6 +304,18 @@ async fn handle_request(
serde_json::json!({ "ip": ip }),
);
}
EdgeEvent::PortsAssigned { listen_ports } => {
send_event(
"portsAssigned",
serde_json::json!({ "listenPorts": listen_ports }),
);
}
EdgeEvent::PortsUpdated { listen_ports } => {
send_event(
"portsUpdated",
serde_json::json!({ "listenPorts": listen_ports }),
);
}
}
}
});
@@ -352,3 +372,58 @@ async fn handle_request(
}
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_ipc_request_deserialize() {
let json = r#"{"id": "1", "method": "ping", "params": {}}"#;
let req: IpcRequest = serde_json::from_str(json).unwrap();
assert_eq!(req.id, "1");
assert_eq!(req.method, "ping");
assert!(req.params.is_object());
}
#[test]
fn test_ipc_response_skip_error_when_none() {
let resp = IpcResponse {
id: "1".to_string(),
success: true,
result: Some(serde_json::json!({"pong": true})),
error: None,
};
let json = serde_json::to_value(&resp).unwrap();
assert_eq!(json["id"], "1");
assert_eq!(json["success"], true);
assert_eq!(json["result"]["pong"], true);
assert!(json.get("error").is_none());
}
#[test]
fn test_ipc_response_skip_result_when_none() {
let resp = IpcResponse {
id: "2".to_string(),
success: false,
result: None,
error: Some("something failed".to_string()),
};
let json = serde_json::to_value(&resp).unwrap();
assert_eq!(json["id"], "2");
assert_eq!(json["success"], false);
assert_eq!(json["error"], "something failed");
assert!(json.get("result").is_none());
}
#[test]
fn test_ipc_event_serialize() {
let evt = IpcEvent {
event: "ready".to_string(),
data: serde_json::json!({"version": "2.0.0"}),
};
let json = serde_json::to_value(&evt).unwrap();
assert_eq!(json["event"], "ready");
assert_eq!(json["data"]["version"], "2.0.0");
}
}

View File

@@ -7,9 +7,10 @@ edition = "2021"
remoteingress-protocol = { path = "../remoteingress-protocol" }
tokio = { version = "1", features = ["full"] }
tokio-rustls = "0.26"
rustls = { version = "0.23", features = ["ring"] }
rustls = { version = "0.23", default-features = false, features = ["ring", "logging", "std", "tls12"] }
rcgen = "0.13"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
log = "0.4"
rustls-pemfile = "2"
tokio-util = "0.7"

View File

@@ -1,15 +1,17 @@
use std::collections::HashMap;
use std::sync::atomic::{AtomicU32, Ordering};
use std::sync::Arc;
use tokio::io::{AsyncReadExt, AsyncWriteExt};
use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
use tokio::net::{TcpListener, TcpStream};
use tokio::sync::{mpsc, Mutex, RwLock};
use tokio::task::JoinHandle;
use tokio_rustls::TlsConnector;
use tokio_util::sync::CancellationToken;
use serde::{Deserialize, Serialize};
use remoteingress_protocol::*;
/// Edge configuration.
/// Edge configuration (hub-host + credentials only; ports come from hub).
#[derive(Debug, Clone, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct EdgeConfig {
@@ -17,8 +19,26 @@ pub struct EdgeConfig {
pub hub_port: u16,
pub edge_id: String,
pub secret: String,
pub listen_ports: Vec<u16>,
pub stun_interval_secs: Option<u64>,
}
/// Handshake config received from hub after authentication.
#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
struct HandshakeConfig {
listen_ports: Vec<u16>,
#[serde(default = "default_stun_interval")]
stun_interval_secs: u64,
}
fn default_stun_interval() -> u64 {
300
}
/// Runtime config update received from hub via FRAME_CONFIG.
#[derive(Debug, Clone, Deserialize)]
#[serde(rename_all = "camelCase")]
struct ConfigUpdate {
listen_ports: Vec<u16>,
}
/// Events emitted by the edge.
@@ -30,6 +50,10 @@ pub enum EdgeEvent {
TunnelDisconnected,
#[serde(rename_all = "camelCase")]
PublicIpDiscovered { ip: String },
#[serde(rename_all = "camelCase")]
PortsAssigned { listen_ports: Vec<u16> },
#[serde(rename_all = "camelCase")]
PortsUpdated { listen_ports: Vec<u16> },
}
/// Edge status response.
@@ -46,19 +70,21 @@ pub struct EdgeStatus {
/// The tunnel edge that listens for client connections and multiplexes them to the hub.
pub struct TunnelEdge {
config: RwLock<EdgeConfig>,
event_tx: mpsc::UnboundedSender<EdgeEvent>,
event_rx: Mutex<Option<mpsc::UnboundedReceiver<EdgeEvent>>>,
event_tx: mpsc::Sender<EdgeEvent>,
event_rx: Mutex<Option<mpsc::Receiver<EdgeEvent>>>,
shutdown_tx: Mutex<Option<mpsc::Sender<()>>>,
running: RwLock<bool>,
connected: Arc<RwLock<bool>>,
public_ip: Arc<RwLock<Option<String>>>,
active_streams: Arc<AtomicU32>,
next_stream_id: Arc<AtomicU32>,
listen_ports: Arc<RwLock<Vec<u16>>>,
cancel_token: CancellationToken,
}
impl TunnelEdge {
pub fn new(config: EdgeConfig) -> Self {
let (event_tx, event_rx) = mpsc::unbounded_channel();
let (event_tx, event_rx) = mpsc::channel(1024);
Self {
config: RwLock::new(config),
event_tx,
@@ -69,11 +95,13 @@ impl TunnelEdge {
public_ip: Arc::new(RwLock::new(None)),
active_streams: Arc::new(AtomicU32::new(0)),
next_stream_id: Arc::new(AtomicU32::new(1)),
listen_ports: Arc::new(RwLock::new(Vec::new())),
cancel_token: CancellationToken::new(),
}
}
/// Take the event receiver (can only be called once).
pub async fn take_event_rx(&self) -> Option<mpsc::UnboundedReceiver<EdgeEvent>> {
pub async fn take_event_rx(&self) -> Option<mpsc::Receiver<EdgeEvent>> {
self.event_rx.lock().await.take()
}
@@ -84,7 +112,7 @@ impl TunnelEdge {
connected: *self.connected.read().await,
public_ip: self.public_ip.read().await.clone(),
active_streams: self.active_streams.load(Ordering::Relaxed) as usize,
listen_ports: self.config.read().await.listen_ports.clone(),
listen_ports: self.listen_ports.read().await.clone(),
}
}
@@ -100,6 +128,8 @@ impl TunnelEdge {
let active_streams = self.active_streams.clone();
let next_stream_id = self.next_stream_id.clone();
let event_tx = self.event_tx.clone();
let listen_ports = self.listen_ports.clone();
let cancel_token = self.cancel_token.clone();
tokio::spawn(async move {
edge_main_loop(
@@ -109,7 +139,9 @@ impl TunnelEdge {
active_streams,
next_stream_id,
event_tx,
listen_ports,
shutdown_rx,
cancel_token,
)
.await;
});
@@ -119,11 +151,19 @@ impl TunnelEdge {
/// Stop the edge.
pub async fn stop(&self) {
self.cancel_token.cancel();
if let Some(tx) = self.shutdown_tx.lock().await.take() {
let _ = tx.send(()).await;
}
*self.running.write().await = false;
*self.connected.write().await = false;
self.listen_ports.write().await.clear();
}
}
impl Drop for TunnelEdge {
fn drop(&mut self) {
self.cancel_token.cancel();
}
}
@@ -133,13 +173,18 @@ async fn edge_main_loop(
public_ip: Arc<RwLock<Option<String>>>,
active_streams: Arc<AtomicU32>,
next_stream_id: Arc<AtomicU32>,
event_tx: mpsc::UnboundedSender<EdgeEvent>,
event_tx: mpsc::Sender<EdgeEvent>,
listen_ports: Arc<RwLock<Vec<u16>>>,
mut shutdown_rx: mpsc::Receiver<()>,
cancel_token: CancellationToken,
) {
let mut backoff_ms: u64 = 1000;
let max_backoff_ms: u64 = 30000;
loop {
// Create a per-connection child token
let connection_token = cancel_token.child_token();
// Try to connect to hub
let result = connect_to_hub_and_run(
&config,
@@ -148,13 +193,21 @@ async fn edge_main_loop(
&active_streams,
&next_stream_id,
&event_tx,
&listen_ports,
&mut shutdown_rx,
&connection_token,
)
.await;
// Cancel connection token to kill all orphaned tasks from this cycle
connection_token.cancel();
*connected.write().await = false;
let _ = event_tx.send(EdgeEvent::TunnelDisconnected);
let _ = event_tx.try_send(EdgeEvent::TunnelDisconnected);
active_streams.store(0, Ordering::Relaxed);
// Reset stream ID counter for next connection cycle
next_stream_id.store(1, Ordering::Relaxed);
listen_ports.write().await.clear();
match result {
EdgeLoopResult::Shutdown => break,
@@ -162,6 +215,7 @@ async fn edge_main_loop(
log::info!("Reconnecting in {}ms...", backoff_ms);
tokio::select! {
_ = tokio::time::sleep(std::time::Duration::from_millis(backoff_ms)) => {}
_ = cancel_token.cancelled() => break,
_ = shutdown_rx.recv() => break,
}
backoff_ms = (backoff_ms * 2).min(max_backoff_ms);
@@ -181,8 +235,10 @@ async fn connect_to_hub_and_run(
public_ip: &Arc<RwLock<Option<String>>>,
active_streams: &Arc<AtomicU32>,
next_stream_id: &Arc<AtomicU32>,
event_tx: &mpsc::UnboundedSender<EdgeEvent>,
event_tx: &mpsc::Sender<EdgeEvent>,
listen_ports: &Arc<RwLock<Vec<u16>>>,
shutdown_rx: &mut mpsc::Receiver<()>,
connection_token: &CancellationToken,
) -> EdgeLoopResult {
// Build TLS connector that skips cert verification (auth is via secret)
let tls_config = rustls::ClientConfig::builder()
@@ -220,25 +276,69 @@ async fn connect_to_hub_and_run(
return EdgeLoopResult::Reconnect;
}
// Read handshake response line from hub (JSON with initial config)
let mut buf_reader = BufReader::new(read_half);
let mut handshake_line = String::new();
match buf_reader.read_line(&mut handshake_line).await {
Ok(0) => {
log::error!("Hub rejected connection (EOF before handshake)");
return EdgeLoopResult::Reconnect;
}
Ok(_) => {}
Err(e) => {
log::error!("Failed to read handshake response: {}", e);
return EdgeLoopResult::Reconnect;
}
}
let handshake: HandshakeConfig = match serde_json::from_str(handshake_line.trim()) {
Ok(h) => h,
Err(e) => {
log::error!("Invalid handshake response: {}", e);
return EdgeLoopResult::Reconnect;
}
};
log::info!(
"Handshake from hub: ports {:?}, stun_interval {}s",
handshake.listen_ports,
handshake.stun_interval_secs
);
*connected.write().await = true;
let _ = event_tx.send(EdgeEvent::TunnelConnected);
let _ = event_tx.try_send(EdgeEvent::TunnelConnected);
log::info!("Connected to hub at {}", addr);
// Store initial ports and emit event
*listen_ports.write().await = handshake.listen_ports.clone();
let _ = event_tx.try_send(EdgeEvent::PortsAssigned {
listen_ports: handshake.listen_ports.clone(),
});
// Start STUN discovery
let stun_interval = config.stun_interval_secs.unwrap_or(300);
let stun_interval = handshake.stun_interval_secs;
let public_ip_clone = public_ip.clone();
let event_tx_clone = event_tx.clone();
let stun_token = connection_token.clone();
let stun_handle = tokio::spawn(async move {
loop {
if let Some(ip) = crate::stun::discover_public_ip().await {
let mut pip = public_ip_clone.write().await;
let changed = pip.as_ref() != Some(&ip);
*pip = Some(ip.clone());
if changed {
let _ = event_tx_clone.send(EdgeEvent::PublicIpDiscovered { ip });
tokio::select! {
ip_result = crate::stun::discover_public_ip() => {
if let Some(ip) = ip_result {
let mut pip = public_ip_clone.write().await;
let changed = pip.as_ref() != Some(&ip);
*pip = Some(ip.clone());
if changed {
let _ = event_tx_clone.try_send(EdgeEvent::PublicIpDiscovered { ip });
}
}
}
_ = stun_token.cancelled() => break,
}
tokio::select! {
_ = tokio::time::sleep(std::time::Duration::from_secs(stun_interval)) => {}
_ = stun_token.cancelled() => break,
}
tokio::time::sleep(std::time::Duration::from_secs(stun_interval)).await;
}
});
@@ -246,64 +346,42 @@ async fn connect_to_hub_and_run(
let client_writers: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>> =
Arc::new(Mutex::new(HashMap::new()));
// Shared tunnel writer
let tunnel_writer = Arc::new(Mutex::new(write_half));
// Start TCP listeners for each port
let mut listener_handles = Vec::new();
for &port in &config.listen_ports {
let tunnel_writer = tunnel_writer.clone();
let client_writers = client_writers.clone();
let active_streams = active_streams.clone();
let next_stream_id = next_stream_id.clone();
let edge_id = config.edge_id.clone();
let handle = tokio::spawn(async move {
let listener = match TcpListener::bind(("0.0.0.0", port)).await {
Ok(l) => l,
Err(e) => {
log::error!("Failed to bind port {}: {}", port, e);
return;
}
};
log::info!("Listening on port {}", port);
loop {
match listener.accept().await {
Ok((client_stream, client_addr)) => {
let stream_id = next_stream_id.fetch_add(1, Ordering::Relaxed);
let tunnel_writer = tunnel_writer.clone();
let client_writers = client_writers.clone();
let active_streams = active_streams.clone();
let edge_id = edge_id.clone();
active_streams.fetch_add(1, Ordering::Relaxed);
tokio::spawn(async move {
handle_client_connection(
client_stream,
client_addr,
stream_id,
port,
&edge_id,
tunnel_writer,
client_writers,
)
.await;
active_streams.fetch_sub(1, Ordering::Relaxed);
});
}
Err(e) => {
log::error!("Accept error on port {}: {}", port, e);
// A5: Channel-based tunnel writer replaces Arc<Mutex<WriteHalf>>
let (tunnel_writer_tx, mut tunnel_writer_rx) = mpsc::channel::<Vec<u8>>(4096);
let tw_token = connection_token.clone();
let tunnel_writer_handle = tokio::spawn(async move {
loop {
tokio::select! {
data = tunnel_writer_rx.recv() => {
match data {
Some(frame_data) => {
if write_half.write_all(&frame_data).await.is_err() {
break;
}
}
None => break,
}
}
_ = tw_token.cancelled() => break,
}
});
listener_handles.push(handle);
}
}
});
// Start TCP listeners for initial ports (hot-reloadable)
let mut port_listeners: HashMap<u16, JoinHandle<()>> = HashMap::new();
apply_port_config(
&handshake.listen_ports,
&mut port_listeners,
&tunnel_writer_tx,
&client_writers,
active_streams,
next_stream_id,
&config.edge_id,
connection_token,
);
// Read frames from hub
let mut frame_reader = FrameReader::new(read_half);
let mut frame_reader = FrameReader::new(buf_reader);
let result = loop {
tokio::select! {
frame_result = frame_reader.next_frame() => {
@@ -311,15 +389,37 @@ async fn connect_to_hub_and_run(
Ok(Some(frame)) => {
match frame.frame_type {
FRAME_DATA_BACK => {
// A1: Non-blocking send to prevent head-of-line blocking
let writers = client_writers.lock().await;
if let Some(tx) = writers.get(&frame.stream_id) {
let _ = tx.send(frame.payload).await;
if tx.try_send(frame.payload).is_err() {
log::warn!("Stream {} back-channel full, dropping frame", frame.stream_id);
}
}
}
FRAME_CLOSE_BACK => {
let mut writers = client_writers.lock().await;
writers.remove(&frame.stream_id);
}
FRAME_CONFIG => {
if let Ok(update) = serde_json::from_slice::<ConfigUpdate>(&frame.payload) {
log::info!("Config update from hub: ports {:?}", update.listen_ports);
*listen_ports.write().await = update.listen_ports.clone();
let _ = event_tx.try_send(EdgeEvent::PortsUpdated {
listen_ports: update.listen_ports.clone(),
});
apply_port_config(
&update.listen_ports,
&mut port_listeners,
&tunnel_writer_tx,
&client_writers,
active_streams,
next_stream_id,
&config.edge_id,
connection_token,
);
}
}
_ => {
log::warn!("Unexpected frame type {} from hub", frame.frame_type);
}
@@ -335,29 +435,122 @@ async fn connect_to_hub_and_run(
}
}
}
_ = connection_token.cancelled() => {
log::info!("Connection cancelled");
break EdgeLoopResult::Shutdown;
}
_ = shutdown_rx.recv() => {
break EdgeLoopResult::Shutdown;
}
}
};
// Cleanup
// Cancel connection token to propagate to all child tasks BEFORE aborting
connection_token.cancel();
stun_handle.abort();
for h in listener_handles {
tunnel_writer_handle.abort();
for (_, h) in port_listeners.drain() {
h.abort();
}
result
}
/// Apply a new port configuration: spawn listeners for added ports, abort removed ports.
fn apply_port_config(
new_ports: &[u16],
port_listeners: &mut HashMap<u16, JoinHandle<()>>,
tunnel_writer_tx: &mpsc::Sender<Vec<u8>>,
client_writers: &Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>>,
active_streams: &Arc<AtomicU32>,
next_stream_id: &Arc<AtomicU32>,
edge_id: &str,
connection_token: &CancellationToken,
) {
let new_set: std::collections::HashSet<u16> = new_ports.iter().copied().collect();
let old_set: std::collections::HashSet<u16> = port_listeners.keys().copied().collect();
// Remove ports no longer needed
for &port in old_set.difference(&new_set) {
if let Some(handle) = port_listeners.remove(&port) {
log::info!("Stopping listener on port {}", port);
handle.abort();
}
}
// Add new ports
for &port in new_set.difference(&old_set) {
let tunnel_writer_tx = tunnel_writer_tx.clone();
let client_writers = client_writers.clone();
let active_streams = active_streams.clone();
let next_stream_id = next_stream_id.clone();
let edge_id = edge_id.to_string();
let port_token = connection_token.child_token();
let handle = tokio::spawn(async move {
let listener = match TcpListener::bind(("0.0.0.0", port)).await {
Ok(l) => l,
Err(e) => {
log::error!("Failed to bind port {}: {}", port, e);
return;
}
};
log::info!("Listening on port {}", port);
loop {
tokio::select! {
accept_result = listener.accept() => {
match accept_result {
Ok((client_stream, client_addr)) => {
let stream_id = next_stream_id.fetch_add(1, Ordering::Relaxed);
let tunnel_writer_tx = tunnel_writer_tx.clone();
let client_writers = client_writers.clone();
let active_streams = active_streams.clone();
let edge_id = edge_id.clone();
let client_token = port_token.child_token();
active_streams.fetch_add(1, Ordering::Relaxed);
tokio::spawn(async move {
handle_client_connection(
client_stream,
client_addr,
stream_id,
port,
&edge_id,
tunnel_writer_tx,
client_writers,
client_token,
)
.await;
active_streams.fetch_sub(1, Ordering::Relaxed);
});
}
Err(e) => {
log::error!("Accept error on port {}: {}", port, e);
}
}
}
_ = port_token.cancelled() => {
log::info!("Port {} listener cancelled", port);
break;
}
}
}
});
port_listeners.insert(port, handle);
}
}
async fn handle_client_connection(
client_stream: TcpStream,
client_addr: std::net::SocketAddr,
stream_id: u32,
dest_port: u16,
edge_id: &str,
tunnel_writer: Arc<Mutex<tokio::io::WriteHalf<tokio_rustls::client::TlsStream<TcpStream>>>>,
tunnel_writer_tx: mpsc::Sender<Vec<u8>>,
client_writers: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>>,
client_token: CancellationToken,
) {
let client_ip = client_addr.ip().to_string();
let client_port = client_addr.port();
@@ -365,14 +558,11 @@ async fn handle_client_connection(
// Determine edge IP (use 0.0.0.0 as placeholder — hub doesn't use it for routing)
let edge_ip = "0.0.0.0";
// Send OPEN frame with PROXY v1 header
// Send OPEN frame with PROXY v1 header via writer channel
let proxy_header = build_proxy_v1_header(&client_ip, edge_ip, client_port, dest_port);
let open_frame = encode_frame(stream_id, FRAME_OPEN, proxy_header.as_bytes());
{
let mut w = tunnel_writer.lock().await;
if w.write_all(&open_frame).await.is_err() {
return;
}
if tunnel_writer_tx.send(open_frame).await.is_err() {
return;
}
// Set up channel for data coming back from hub
@@ -385,36 +575,52 @@ async fn handle_client_connection(
let (mut client_read, mut client_write) = client_stream.into_split();
// Task: hub -> client
let hub_to_client_token = client_token.clone();
let hub_to_client = tokio::spawn(async move {
while let Some(data) = back_rx.recv().await {
if client_write.write_all(&data).await.is_err() {
break;
loop {
tokio::select! {
data = back_rx.recv() => {
match data {
Some(data) => {
if client_write.write_all(&data).await.is_err() {
break;
}
}
None => break,
}
}
_ = hub_to_client_token.cancelled() => break,
}
}
let _ = client_write.shutdown().await;
});
// Task: client -> hub
// Task: client -> hub (via writer channel)
let mut buf = vec![0u8; 32768];
loop {
match client_read.read(&mut buf).await {
Ok(0) => break,
Ok(n) => {
let data_frame = encode_frame(stream_id, FRAME_DATA, &buf[..n]);
let mut w = tunnel_writer.lock().await;
if w.write_all(&data_frame).await.is_err() {
break;
tokio::select! {
read_result = client_read.read(&mut buf) => {
match read_result {
Ok(0) => break,
Ok(n) => {
let data_frame = encode_frame(stream_id, FRAME_DATA, &buf[..n]);
// A5: Use try_send to avoid blocking if writer channel is full
if tunnel_writer_tx.try_send(data_frame).is_err() {
log::warn!("Stream {} tunnel writer full, closing", stream_id);
break;
}
}
Err(_) => break,
}
}
Err(_) => break,
_ = client_token.cancelled() => break,
}
}
// Send CLOSE frame
let close_frame = encode_frame(stream_id, FRAME_CLOSE, &[]);
{
let mut w = tunnel_writer.lock().await;
let _ = w.write_all(&close_frame).await;
// Send CLOSE frame (only if not cancelled)
if !client_token.is_cancelled() {
let close_frame = encode_frame(stream_id, FRAME_CLOSE, &[]);
let _ = tunnel_writer_tx.try_send(close_frame);
}
// Cleanup
@@ -426,6 +632,186 @@ async fn handle_client_connection(
let _ = edge_id; // used for logging context
}
#[cfg(test)]
mod tests {
use super::*;
// --- Serde tests ---
#[test]
fn test_edge_config_deserialize_camel_case() {
let json = r#"{
"hubHost": "hub.example.com",
"hubPort": 8443,
"edgeId": "edge-1",
"secret": "my-secret"
}"#;
let config: EdgeConfig = serde_json::from_str(json).unwrap();
assert_eq!(config.hub_host, "hub.example.com");
assert_eq!(config.hub_port, 8443);
assert_eq!(config.edge_id, "edge-1");
assert_eq!(config.secret, "my-secret");
}
#[test]
fn test_edge_config_serialize_roundtrip() {
let config = EdgeConfig {
hub_host: "host.test".to_string(),
hub_port: 9999,
edge_id: "e1".to_string(),
secret: "sec".to_string(),
};
let json = serde_json::to_string(&config).unwrap();
let back: EdgeConfig = serde_json::from_str(&json).unwrap();
assert_eq!(back.hub_host, config.hub_host);
assert_eq!(back.hub_port, config.hub_port);
assert_eq!(back.edge_id, config.edge_id);
assert_eq!(back.secret, config.secret);
}
#[test]
fn test_handshake_config_deserialize_all_fields() {
let json = r#"{"listenPorts": [80, 443], "stunIntervalSecs": 120}"#;
let hc: HandshakeConfig = serde_json::from_str(json).unwrap();
assert_eq!(hc.listen_ports, vec![80, 443]);
assert_eq!(hc.stun_interval_secs, 120);
}
#[test]
fn test_handshake_config_default_stun_interval() {
let json = r#"{"listenPorts": [443]}"#;
let hc: HandshakeConfig = serde_json::from_str(json).unwrap();
assert_eq!(hc.listen_ports, vec![443]);
assert_eq!(hc.stun_interval_secs, 300);
}
#[test]
fn test_config_update_deserialize() {
let json = r#"{"listenPorts": [8080, 9090]}"#;
let update: ConfigUpdate = serde_json::from_str(json).unwrap();
assert_eq!(update.listen_ports, vec![8080, 9090]);
}
#[test]
fn test_edge_status_serialize() {
let status = EdgeStatus {
running: true,
connected: true,
public_ip: Some("1.2.3.4".to_string()),
active_streams: 5,
listen_ports: vec![443],
};
let json = serde_json::to_value(&status).unwrap();
assert_eq!(json["running"], true);
assert_eq!(json["connected"], true);
assert_eq!(json["publicIp"], "1.2.3.4");
assert_eq!(json["activeStreams"], 5);
assert_eq!(json["listenPorts"], serde_json::json!([443]));
}
#[test]
fn test_edge_status_serialize_none_ip() {
let status = EdgeStatus {
running: false,
connected: false,
public_ip: None,
active_streams: 0,
listen_ports: vec![],
};
let json = serde_json::to_value(&status).unwrap();
assert!(json["publicIp"].is_null());
}
#[test]
fn test_edge_event_tunnel_connected() {
let event = EdgeEvent::TunnelConnected;
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "tunnelConnected");
}
#[test]
fn test_edge_event_tunnel_disconnected() {
let event = EdgeEvent::TunnelDisconnected;
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "tunnelDisconnected");
}
#[test]
fn test_edge_event_public_ip_discovered() {
let event = EdgeEvent::PublicIpDiscovered {
ip: "203.0.113.1".to_string(),
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "publicIpDiscovered");
assert_eq!(json["ip"], "203.0.113.1");
}
#[test]
fn test_edge_event_ports_assigned() {
let event = EdgeEvent::PortsAssigned {
listen_ports: vec![443, 8080],
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "portsAssigned");
assert_eq!(json["listenPorts"], serde_json::json!([443, 8080]));
}
#[test]
fn test_edge_event_ports_updated() {
let event = EdgeEvent::PortsUpdated {
listen_ports: vec![9090],
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "portsUpdated");
assert_eq!(json["listenPorts"], serde_json::json!([9090]));
}
// --- Async tests ---
#[tokio::test]
async fn test_tunnel_edge_new_get_status() {
let edge = TunnelEdge::new(EdgeConfig {
hub_host: "localhost".to_string(),
hub_port: 8443,
edge_id: "test-edge".to_string(),
secret: "test-secret".to_string(),
});
let status = edge.get_status().await;
assert!(!status.running);
assert!(!status.connected);
assert!(status.public_ip.is_none());
assert_eq!(status.active_streams, 0);
assert!(status.listen_ports.is_empty());
}
#[tokio::test]
async fn test_tunnel_edge_take_event_rx() {
let edge = TunnelEdge::new(EdgeConfig {
hub_host: "localhost".to_string(),
hub_port: 8443,
edge_id: "e".to_string(),
secret: "s".to_string(),
});
let rx1 = edge.take_event_rx().await;
assert!(rx1.is_some());
let rx2 = edge.take_event_rx().await;
assert!(rx2.is_none());
}
#[tokio::test]
async fn test_tunnel_edge_stop_without_start() {
let edge = TunnelEdge::new(EdgeConfig {
hub_host: "localhost".to_string(),
hub_port: 8443,
edge_id: "e".to_string(),
secret: "s".to_string(),
});
edge.stop().await; // should not panic
let status = edge.get_status().await;
assert!(!status.running);
}
}
/// TLS certificate verifier that accepts any certificate (auth is via shared secret).
#[derive(Debug)]
struct NoCertVerifier;

View File

@@ -2,8 +2,9 @@ use std::collections::HashMap;
use std::sync::Arc;
use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
use tokio::net::{TcpListener, TcpStream};
use tokio::sync::{mpsc, Mutex, RwLock};
use tokio::sync::{mpsc, Mutex, RwLock, Semaphore};
use tokio_rustls::TlsAcceptor;
use tokio_util::sync::CancellationToken;
use serde::{Deserialize, Serialize};
use remoteingress_protocol::*;
@@ -14,9 +15,9 @@ use remoteingress_protocol::*;
pub struct HubConfig {
pub tunnel_port: u16,
pub target_host: Option<String>,
#[serde(skip)]
#[serde(default)]
pub tls_cert_pem: Option<String>,
#[serde(skip)]
#[serde(default)]
pub tls_key_pem: Option<String>,
}
@@ -37,6 +38,24 @@ impl Default for HubConfig {
pub struct AllowedEdge {
pub id: String,
pub secret: String,
#[serde(default)]
pub listen_ports: Vec<u16>,
pub stun_interval_secs: Option<u64>,
}
/// Handshake response sent to edge after authentication.
#[derive(Debug, Clone, Serialize)]
#[serde(rename_all = "camelCase")]
struct HandshakeResponse {
listen_ports: Vec<u16>,
stun_interval_secs: u64,
}
/// Configuration update pushed to a connected edge at runtime.
#[derive(Debug, Clone, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct EdgeConfigUpdate {
pub listen_ports: Vec<u16>,
}
/// Runtime status of a connected edge.
@@ -46,6 +65,7 @@ pub struct ConnectedEdgeStatus {
pub edge_id: String,
pub connected_at: u64,
pub active_streams: usize,
pub peer_addr: String,
}
/// Events emitted by the hub.
@@ -54,7 +74,7 @@ pub struct ConnectedEdgeStatus {
#[serde(tag = "type")]
pub enum HubEvent {
#[serde(rename_all = "camelCase")]
EdgeConnected { edge_id: String },
EdgeConnected { edge_id: String, peer_addr: String },
#[serde(rename_all = "camelCase")]
EdgeDisconnected { edge_id: String },
#[serde(rename_all = "camelCase")]
@@ -75,22 +95,27 @@ pub struct HubStatus {
/// The tunnel hub that accepts edge connections and demuxes streams to SmartProxy.
pub struct TunnelHub {
config: RwLock<HubConfig>,
allowed_edges: Arc<RwLock<HashMap<String, String>>>, // id -> secret
allowed_edges: Arc<RwLock<HashMap<String, AllowedEdge>>>,
connected_edges: Arc<Mutex<HashMap<String, ConnectedEdgeInfo>>>,
event_tx: mpsc::UnboundedSender<HubEvent>,
event_rx: Mutex<Option<mpsc::UnboundedReceiver<HubEvent>>>,
event_tx: mpsc::Sender<HubEvent>,
event_rx: Mutex<Option<mpsc::Receiver<HubEvent>>>,
shutdown_tx: Mutex<Option<mpsc::Sender<()>>>,
running: RwLock<bool>,
cancel_token: CancellationToken,
}
struct ConnectedEdgeInfo {
connected_at: u64,
active_streams: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>>,
peer_addr: String,
active_streams: Arc<Mutex<HashMap<u32, (mpsc::Sender<Vec<u8>>, CancellationToken)>>>,
config_tx: mpsc::Sender<EdgeConfigUpdate>,
#[allow(dead_code)] // kept alive for Drop — cancels child tokens when edge is removed
cancel_token: CancellationToken,
}
impl TunnelHub {
pub fn new(config: HubConfig) -> Self {
let (event_tx, event_rx) = mpsc::unbounded_channel();
let (event_tx, event_rx) = mpsc::channel(1024);
Self {
config: RwLock::new(config),
allowed_edges: Arc::new(RwLock::new(HashMap::new())),
@@ -99,21 +124,45 @@ impl TunnelHub {
event_rx: Mutex::new(Some(event_rx)),
shutdown_tx: Mutex::new(None),
running: RwLock::new(false),
cancel_token: CancellationToken::new(),
}
}
/// Take the event receiver (can only be called once).
pub async fn take_event_rx(&self) -> Option<mpsc::UnboundedReceiver<HubEvent>> {
pub async fn take_event_rx(&self) -> Option<mpsc::Receiver<HubEvent>> {
self.event_rx.lock().await.take()
}
/// Update the list of allowed edges.
/// For any currently-connected edge whose ports changed, push a config update.
pub async fn update_allowed_edges(&self, edges: Vec<AllowedEdge>) {
let mut map = self.allowed_edges.write().await;
map.clear();
for edge in edges {
map.insert(edge.id, edge.secret);
// Build new map
let mut new_map = HashMap::new();
for edge in &edges {
new_map.insert(edge.id.clone(), edge.clone());
}
// Push config updates to connected edges whose ports changed
let connected = self.connected_edges.lock().await;
for edge in &edges {
if let Some(info) = connected.get(&edge.id) {
// Check if ports changed compared to old config
let ports_changed = match map.get(&edge.id) {
Some(old) => old.listen_ports != edge.listen_ports,
None => true, // newly allowed edge that's already connected
};
if ports_changed {
let update = EdgeConfigUpdate {
listen_ports: edge.listen_ports.clone(),
};
let _ = info.config_tx.try_send(update);
}
}
}
*map = new_map;
}
/// Get the current hub status.
@@ -129,6 +178,7 @@ impl TunnelHub {
edge_id: id.clone(),
connected_at: info.connected_at,
active_streams: streams.len(),
peer_addr: info.peer_addr.clone(),
});
}
@@ -156,6 +206,7 @@ impl TunnelHub {
let connected = self.connected_edges.clone();
let event_tx = self.event_tx.clone();
let target_host = config.target_host.unwrap_or_else(|| "127.0.0.1".to_string());
let hub_token = self.cancel_token.clone();
tokio::spawn(async move {
loop {
@@ -169,9 +220,11 @@ impl TunnelHub {
let connected = connected.clone();
let event_tx = event_tx.clone();
let target = target_host.clone();
let edge_token = hub_token.child_token();
let peer_addr = addr.ip().to_string();
tokio::spawn(async move {
if let Err(e) = handle_edge_connection(
stream, acceptor, allowed, connected, event_tx, target,
stream, acceptor, allowed, connected, event_tx, target, edge_token, peer_addr,
).await {
log::error!("Edge connection error: {}", e);
}
@@ -182,6 +235,10 @@ impl TunnelHub {
}
}
}
_ = hub_token.cancelled() => {
log::info!("Hub shutting down (token cancelled)");
break;
}
_ = shutdown_rx.recv() => {
log::info!("Hub shutting down");
break;
@@ -195,6 +252,7 @@ impl TunnelHub {
/// Stop the hub.
pub async fn stop(&self) {
self.cancel_token.cancel();
if let Some(tx) = self.shutdown_tx.lock().await.take() {
let _ = tx.send(()).await;
}
@@ -204,17 +262,28 @@ impl TunnelHub {
}
}
impl Drop for TunnelHub {
fn drop(&mut self) {
self.cancel_token.cancel();
}
}
/// Maximum concurrent streams per edge connection.
const MAX_STREAMS_PER_EDGE: usize = 1024;
/// Handle a single edge connection: authenticate, then enter frame loop.
async fn handle_edge_connection(
stream: TcpStream,
acceptor: TlsAcceptor,
allowed: Arc<RwLock<HashMap<String, String>>>,
allowed: Arc<RwLock<HashMap<String, AllowedEdge>>>,
connected: Arc<Mutex<HashMap<String, ConnectedEdgeInfo>>>,
event_tx: mpsc::UnboundedSender<HubEvent>,
event_tx: mpsc::Sender<HubEvent>,
target_host: String,
edge_token: CancellationToken,
peer_addr: String,
) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
let tls_stream = acceptor.accept(stream).await?;
let (read_half, write_half) = tokio::io::split(tls_stream);
let (read_half, mut write_half) = tokio::io::split(tls_stream);
let mut buf_reader = BufReader::new(read_half);
// Read auth line: "EDGE <edgeId> <secret>\n"
@@ -230,179 +299,309 @@ async fn handle_edge_connection(
let edge_id = parts[1].to_string();
let secret = parts[2];
// Verify credentials
{
// Verify credentials and extract edge config
let (listen_ports, stun_interval_secs) = {
let edges = allowed.read().await;
match edges.get(&edge_id) {
Some(expected) => {
if !constant_time_eq(secret.as_bytes(), expected.as_bytes()) {
Some(edge) => {
if !constant_time_eq(secret.as_bytes(), edge.secret.as_bytes()) {
return Err(format!("invalid secret for edge {}", edge_id).into());
}
(edge.listen_ports.clone(), edge.stun_interval_secs.unwrap_or(300))
}
None => {
return Err(format!("unknown edge {}", edge_id).into());
}
}
}
};
log::info!("Edge {} authenticated", edge_id);
let _ = event_tx.send(HubEvent::EdgeConnected {
log::info!("Edge {} authenticated from {}", edge_id, peer_addr);
let _ = event_tx.try_send(HubEvent::EdgeConnected {
edge_id: edge_id.clone(),
peer_addr: peer_addr.clone(),
});
// Send handshake response with initial config before frame protocol begins
let handshake = HandshakeResponse {
listen_ports: listen_ports.clone(),
stun_interval_secs,
};
let mut handshake_json = serde_json::to_string(&handshake)?;
handshake_json.push('\n');
write_half.write_all(handshake_json.as_bytes()).await?;
// Track this edge
let streams: Arc<Mutex<HashMap<u32, mpsc::Sender<Vec<u8>>>>> =
let streams: Arc<Mutex<HashMap<u32, (mpsc::Sender<Vec<u8>>, CancellationToken)>>> =
Arc::new(Mutex::new(HashMap::new()));
let now = std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.unwrap_or_default()
.as_secs();
// Create config update channel
let (config_tx, mut config_rx) = mpsc::channel::<EdgeConfigUpdate>(16);
{
let mut edges = connected.lock().await;
edges.insert(
edge_id.clone(),
ConnectedEdgeInfo {
connected_at: now,
peer_addr,
active_streams: streams.clone(),
config_tx,
cancel_token: edge_token.clone(),
},
);
}
// Shared writer for sending frames back to edge
let write_half = Arc::new(Mutex::new(write_half));
// A5: Channel-based writer replaces Arc<Mutex<WriteHalf>>
// All frame writes go through this channel → dedicated writer task serializes them
let (frame_writer_tx, mut frame_writer_rx) = mpsc::channel::<Vec<u8>>(4096);
let writer_token = edge_token.clone();
let writer_handle = tokio::spawn(async move {
loop {
tokio::select! {
data = frame_writer_rx.recv() => {
match data {
Some(frame_data) => {
if write_half.write_all(&frame_data).await.is_err() {
break;
}
}
None => break,
}
}
_ = writer_token.cancelled() => break,
}
}
});
// Spawn task to forward config updates as FRAME_CONFIG frames
let config_writer_tx = frame_writer_tx.clone();
let config_edge_id = edge_id.clone();
let config_token = edge_token.clone();
let config_handle = tokio::spawn(async move {
loop {
tokio::select! {
update = config_rx.recv() => {
match update {
Some(update) => {
if let Ok(payload) = serde_json::to_vec(&update) {
let frame = encode_frame(0, FRAME_CONFIG, &payload);
if config_writer_tx.send(frame).await.is_err() {
log::error!("Failed to send config update to edge {}", config_edge_id);
break;
}
log::info!("Sent config update to edge {}: ports {:?}", config_edge_id, update.listen_ports);
}
}
None => break,
}
}
_ = config_token.cancelled() => break,
}
}
});
// A4: Semaphore to limit concurrent streams per edge
let stream_semaphore = Arc::new(Semaphore::new(MAX_STREAMS_PER_EDGE));
// Frame reading loop
let mut frame_reader = FrameReader::new(buf_reader);
loop {
match frame_reader.next_frame().await {
Ok(Some(frame)) => {
match frame.frame_type {
FRAME_OPEN => {
// Payload is PROXY v1 header line
let proxy_header = String::from_utf8_lossy(&frame.payload).to_string();
// Parse destination port from PROXY header
let dest_port = parse_dest_port_from_proxy(&proxy_header).unwrap_or(443);
let stream_id = frame.stream_id;
let edge_id_clone = edge_id.clone();
let event_tx_clone = event_tx.clone();
let streams_clone = streams.clone();
let writer_clone = write_half.clone();
let target = target_host.clone();
let _ = event_tx.send(HubEvent::StreamOpened {
edge_id: edge_id.clone(),
stream_id,
});
// Create channel for data from edge to this stream
let (data_tx, mut data_rx) = mpsc::channel::<Vec<u8>>(256);
{
let mut s = streams.lock().await;
s.insert(stream_id, data_tx);
}
// Spawn task: connect to SmartProxy, send PROXY header, pipe data
tokio::spawn(async move {
let result = async {
let mut upstream =
TcpStream::connect((target.as_str(), dest_port)).await?;
upstream.write_all(proxy_header.as_bytes()).await?;
let (mut up_read, mut up_write) =
upstream.into_split();
// Forward data from edge (via channel) to SmartProxy
let writer_for_edge_data = tokio::spawn(async move {
while let Some(data) = data_rx.recv().await {
if up_write.write_all(&data).await.is_err() {
break;
}
tokio::select! {
frame_result = frame_reader.next_frame() => {
match frame_result {
Ok(Some(frame)) => {
match frame.frame_type {
FRAME_OPEN => {
// A4: Check stream limit before processing
let permit = match stream_semaphore.clone().try_acquire_owned() {
Ok(p) => p,
Err(_) => {
log::warn!("Edge {} exceeded max streams ({}), rejecting stream {}",
edge_id, MAX_STREAMS_PER_EDGE, frame.stream_id);
let close_frame = encode_frame(frame.stream_id, FRAME_CLOSE_BACK, &[]);
let _ = frame_writer_tx.try_send(close_frame);
continue;
}
let _ = up_write.shutdown().await;
};
// Payload is PROXY v1 header line
let proxy_header = String::from_utf8_lossy(&frame.payload).to_string();
// Parse destination port from PROXY header
let dest_port = parse_dest_port_from_proxy(&proxy_header).unwrap_or(443);
let stream_id = frame.stream_id;
let edge_id_clone = edge_id.clone();
let event_tx_clone = event_tx.clone();
let streams_clone = streams.clone();
let writer_tx = frame_writer_tx.clone();
let target = target_host.clone();
let stream_token = edge_token.child_token();
let _ = event_tx.try_send(HubEvent::StreamOpened {
edge_id: edge_id.clone(),
stream_id,
});
// Forward data from SmartProxy back to edge
let mut buf = vec![0u8; 32768];
loop {
match up_read.read(&mut buf).await {
Ok(0) => break,
Ok(n) => {
let frame =
encode_frame(stream_id, FRAME_DATA_BACK, &buf[..n]);
let mut w = writer_clone.lock().await;
if w.write_all(&frame).await.is_err() {
break;
}
}
Err(_) => break,
}
// Create channel for data from edge to this stream
let (data_tx, mut data_rx) = mpsc::channel::<Vec<u8>>(256);
{
let mut s = streams.lock().await;
s.insert(stream_id, (data_tx, stream_token.clone()));
}
// Send CLOSE_BACK to edge
let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
let mut w = writer_clone.lock().await;
let _ = w.write_all(&close_frame).await;
// Spawn task: connect to SmartProxy, send PROXY header, pipe data
tokio::spawn(async move {
let _permit = permit; // hold semaphore permit until stream completes
writer_for_edge_data.abort();
Ok::<(), Box<dyn std::error::Error + Send + Sync>>(())
}
.await;
let result = async {
// A2: Connect to SmartProxy with timeout
let mut upstream = tokio::time::timeout(
std::time::Duration::from_secs(10),
TcpStream::connect((target.as_str(), dest_port)),
)
.await
.map_err(|_| -> Box<dyn std::error::Error + Send + Sync> {
format!("connect to SmartProxy {}:{} timed out (10s)", target, dest_port).into()
})??;
if let Err(e) = result {
log::error!("Stream {} error: {}", stream_id, e);
// Send CLOSE_BACK on error
let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
let mut w = writer_clone.lock().await;
let _ = w.write_all(&close_frame).await;
}
upstream.write_all(proxy_header.as_bytes()).await?;
// Clean up stream
{
let mut s = streams_clone.lock().await;
s.remove(&stream_id);
let (mut up_read, mut up_write) =
upstream.into_split();
// Forward data from edge (via channel) to SmartProxy
let writer_token = stream_token.clone();
let writer_for_edge_data = tokio::spawn(async move {
loop {
tokio::select! {
data = data_rx.recv() => {
match data {
Some(data) => {
if up_write.write_all(&data).await.is_err() {
break;
}
}
None => break,
}
}
_ = writer_token.cancelled() => break,
}
}
let _ = up_write.shutdown().await;
});
// Forward data from SmartProxy back to edge via writer channel
let mut buf = vec![0u8; 32768];
loop {
tokio::select! {
read_result = up_read.read(&mut buf) => {
match read_result {
Ok(0) => break,
Ok(n) => {
let frame =
encode_frame(stream_id, FRAME_DATA_BACK, &buf[..n]);
// A5: Use try_send to avoid blocking if writer channel is full
if writer_tx.try_send(frame).is_err() {
log::warn!("Stream {} writer channel full, closing", stream_id);
break;
}
}
Err(_) => break,
}
}
_ = stream_token.cancelled() => break,
}
}
// Send CLOSE_BACK to edge (only if not cancelled)
if !stream_token.is_cancelled() {
let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
let _ = writer_tx.try_send(close_frame);
}
writer_for_edge_data.abort();
Ok::<(), Box<dyn std::error::Error + Send + Sync>>(())
}
.await;
if let Err(e) = result {
log::error!("Stream {} error: {}", stream_id, e);
// Send CLOSE_BACK on error (only if not cancelled)
if !stream_token.is_cancelled() {
let close_frame = encode_frame(stream_id, FRAME_CLOSE_BACK, &[]);
let _ = writer_tx.try_send(close_frame);
}
}
// Clean up stream (guard against duplicate if FRAME_CLOSE already removed it)
let was_present = {
let mut s = streams_clone.lock().await;
s.remove(&stream_id).is_some()
};
if was_present {
let _ = event_tx_clone.try_send(HubEvent::StreamClosed {
edge_id: edge_id_clone,
stream_id,
});
}
});
}
FRAME_DATA => {
// A1: Non-blocking send to prevent head-of-line blocking
let s = streams.lock().await;
if let Some((tx, _)) = s.get(&frame.stream_id) {
if tx.try_send(frame.payload).is_err() {
log::warn!("Stream {} data channel full, dropping frame", frame.stream_id);
}
}
}
FRAME_CLOSE => {
let mut s = streams.lock().await;
if let Some((_, token)) = s.remove(&frame.stream_id) {
token.cancel();
let _ = event_tx.try_send(HubEvent::StreamClosed {
edge_id: edge_id.clone(),
stream_id: frame.stream_id,
});
}
}
_ => {
log::warn!("Unexpected frame type {} from edge", frame.frame_type);
}
let _ = event_tx_clone.send(HubEvent::StreamClosed {
edge_id: edge_id_clone,
stream_id,
});
});
}
FRAME_DATA => {
let s = streams.lock().await;
if let Some(tx) = s.get(&frame.stream_id) {
let _ = tx.send(frame.payload).await;
}
}
FRAME_CLOSE => {
let mut s = streams.lock().await;
s.remove(&frame.stream_id);
Ok(None) => {
log::info!("Edge {} disconnected (EOF)", edge_id);
break;
}
_ => {
log::warn!("Unexpected frame type {} from edge", frame.frame_type);
Err(e) => {
log::error!("Edge {} frame error: {}", edge_id, e);
break;
}
}
}
Ok(None) => {
log::info!("Edge {} disconnected (EOF)", edge_id);
break;
}
Err(e) => {
log::error!("Edge {} frame error: {}", edge_id, e);
_ = edge_token.cancelled() => {
log::info!("Edge {} cancelled by hub", edge_id);
break;
}
}
}
// Cleanup
// Cleanup: cancel edge token to propagate to all child tasks
edge_token.cancel();
config_handle.abort();
writer_handle.abort();
{
let mut edges = connected.lock().await;
edges.remove(&edge_id);
}
let _ = event_tx.send(HubEvent::EdgeDisconnected {
let _ = event_tx.try_send(HubEvent::EdgeDisconnected {
edge_id: edge_id.clone(),
});
@@ -475,3 +674,212 @@ fn constant_time_eq(a: &[u8], b: &[u8]) -> bool {
}
diff == 0
}
#[cfg(test)]
mod tests {
use super::*;
// --- constant_time_eq tests ---
#[test]
fn test_constant_time_eq_equal() {
assert!(constant_time_eq(b"hello", b"hello"));
}
#[test]
fn test_constant_time_eq_different_content() {
assert!(!constant_time_eq(b"hello", b"world"));
}
#[test]
fn test_constant_time_eq_different_lengths() {
assert!(!constant_time_eq(b"short", b"longer"));
}
#[test]
fn test_constant_time_eq_both_empty() {
assert!(constant_time_eq(b"", b""));
}
#[test]
fn test_constant_time_eq_one_empty() {
assert!(!constant_time_eq(b"", b"notempty"));
}
#[test]
fn test_constant_time_eq_single_bit_difference() {
// 'A' = 0x41, 'a' = 0x61 — differ by one bit
assert!(!constant_time_eq(b"A", b"a"));
}
// --- parse_dest_port_from_proxy tests ---
#[test]
fn test_parse_dest_port_443() {
let header = "PROXY TCP4 1.2.3.4 5.6.7.8 12345 443\r\n";
assert_eq!(parse_dest_port_from_proxy(header), Some(443));
}
#[test]
fn test_parse_dest_port_80() {
let header = "PROXY TCP4 10.0.0.1 10.0.0.2 54321 80\r\n";
assert_eq!(parse_dest_port_from_proxy(header), Some(80));
}
#[test]
fn test_parse_dest_port_65535() {
let header = "PROXY TCP4 10.0.0.1 10.0.0.2 1 65535\r\n";
assert_eq!(parse_dest_port_from_proxy(header), Some(65535));
}
#[test]
fn test_parse_dest_port_too_few_fields() {
let header = "PROXY TCP4 1.2.3.4";
assert_eq!(parse_dest_port_from_proxy(header), None);
}
#[test]
fn test_parse_dest_port_empty_string() {
assert_eq!(parse_dest_port_from_proxy(""), None);
}
#[test]
fn test_parse_dest_port_non_numeric() {
let header = "PROXY TCP4 1.2.3.4 5.6.7.8 12345 abc\r\n";
assert_eq!(parse_dest_port_from_proxy(header), None);
}
// --- Serde tests ---
#[test]
fn test_allowed_edge_deserialize_all_fields() {
let json = r#"{
"id": "edge-1",
"secret": "s3cret",
"listenPorts": [443, 8080],
"stunIntervalSecs": 120
}"#;
let edge: AllowedEdge = serde_json::from_str(json).unwrap();
assert_eq!(edge.id, "edge-1");
assert_eq!(edge.secret, "s3cret");
assert_eq!(edge.listen_ports, vec![443, 8080]);
assert_eq!(edge.stun_interval_secs, Some(120));
}
#[test]
fn test_allowed_edge_deserialize_with_defaults() {
let json = r#"{"id": "edge-2", "secret": "key"}"#;
let edge: AllowedEdge = serde_json::from_str(json).unwrap();
assert_eq!(edge.id, "edge-2");
assert_eq!(edge.secret, "key");
assert!(edge.listen_ports.is_empty());
assert_eq!(edge.stun_interval_secs, None);
}
#[test]
fn test_handshake_response_serializes_camel_case() {
let resp = HandshakeResponse {
listen_ports: vec![443, 8080],
stun_interval_secs: 300,
};
let json = serde_json::to_value(&resp).unwrap();
assert_eq!(json["listenPorts"], serde_json::json!([443, 8080]));
assert_eq!(json["stunIntervalSecs"], 300);
// Ensure snake_case keys are NOT present
assert!(json.get("listen_ports").is_none());
assert!(json.get("stun_interval_secs").is_none());
}
#[test]
fn test_edge_config_update_serializes_camel_case() {
let update = EdgeConfigUpdate {
listen_ports: vec![80, 443],
};
let json = serde_json::to_value(&update).unwrap();
assert_eq!(json["listenPorts"], serde_json::json!([80, 443]));
assert!(json.get("listen_ports").is_none());
}
#[test]
fn test_hub_config_default() {
let config = HubConfig::default();
assert_eq!(config.tunnel_port, 8443);
assert_eq!(config.target_host, Some("127.0.0.1".to_string()));
assert!(config.tls_cert_pem.is_none());
assert!(config.tls_key_pem.is_none());
}
#[test]
fn test_hub_event_edge_connected_serialize() {
let event = HubEvent::EdgeConnected {
edge_id: "edge-1".to_string(),
peer_addr: "203.0.113.5".to_string(),
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "edgeConnected");
assert_eq!(json["edgeId"], "edge-1");
assert_eq!(json["peerAddr"], "203.0.113.5");
}
#[test]
fn test_hub_event_edge_disconnected_serialize() {
let event = HubEvent::EdgeDisconnected {
edge_id: "edge-2".to_string(),
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "edgeDisconnected");
assert_eq!(json["edgeId"], "edge-2");
}
#[test]
fn test_hub_event_stream_opened_serialize() {
let event = HubEvent::StreamOpened {
edge_id: "e".to_string(),
stream_id: 42,
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "streamOpened");
assert_eq!(json["edgeId"], "e");
assert_eq!(json["streamId"], 42);
}
#[test]
fn test_hub_event_stream_closed_serialize() {
let event = HubEvent::StreamClosed {
edge_id: "e".to_string(),
stream_id: 7,
};
let json = serde_json::to_value(&event).unwrap();
assert_eq!(json["type"], "streamClosed");
assert_eq!(json["edgeId"], "e");
assert_eq!(json["streamId"], 7);
}
// --- Async tests ---
#[tokio::test]
async fn test_tunnel_hub_new_get_status() {
let hub = TunnelHub::new(HubConfig::default());
let status = hub.get_status().await;
assert!(!status.running);
assert!(status.connected_edges.is_empty());
assert_eq!(status.tunnel_port, 8443);
}
#[tokio::test]
async fn test_tunnel_hub_take_event_rx() {
let hub = TunnelHub::new(HubConfig::default());
let rx1 = hub.take_event_rx().await;
assert!(rx1.is_some());
let rx2 = hub.take_event_rx().await;
assert!(rx2.is_none());
}
#[tokio::test]
async fn test_tunnel_hub_stop_without_start() {
let hub = TunnelHub::new(HubConfig::default());
hub.stop().await; // should not panic
let status = hub.get_status().await;
assert!(!status.running);
}
}

View File

@@ -121,6 +121,133 @@ fn parse_stun_response(data: &[u8], _txn_id: &[u8; 12]) -> Option<String> {
None
}
#[cfg(test)]
mod tests {
use super::*;
/// Build a synthetic STUN Binding Response with given attributes.
fn build_stun_response(attrs: &[(u16, &[u8])]) -> Vec<u8> {
let mut attrs_bytes = Vec::new();
for &(attr_type, attr_data) in attrs {
attrs_bytes.extend_from_slice(&attr_type.to_be_bytes());
attrs_bytes.extend_from_slice(&(attr_data.len() as u16).to_be_bytes());
attrs_bytes.extend_from_slice(attr_data);
// Pad to 4-byte boundary
let pad = (4 - (attr_data.len() % 4)) % 4;
attrs_bytes.extend(std::iter::repeat(0u8).take(pad));
}
let mut response = Vec::new();
// msg_type = 0x0101 (Binding Response)
response.extend_from_slice(&0x0101u16.to_be_bytes());
// message length
response.extend_from_slice(&(attrs_bytes.len() as u16).to_be_bytes());
// magic cookie
response.extend_from_slice(&STUN_MAGIC_COOKIE.to_be_bytes());
// transaction ID (12 bytes)
response.extend_from_slice(&[0u8; 12]);
// attributes
response.extend_from_slice(&attrs_bytes);
response
}
#[test]
fn test_xor_mapped_address_ipv4() {
// IP 203.0.113.1 = 0xCB007101, XOR'd with magic 0x2112A442 = 0xEA12D543
let attr_data: [u8; 8] = [
0x00, 0x01, // reserved + family (IPv4)
0x11, 0x2B, // port XOR'd with 0x2112 (port 0x3039 = 12345)
0xEA, 0x12, 0xD5, 0x43, // IP XOR'd
];
let data = build_stun_response(&[(ATTR_XOR_MAPPED_ADDRESS, &attr_data)]);
let txn_id = [0u8; 12];
let result = parse_stun_response(&data, &txn_id);
assert_eq!(result, Some("203.0.113.1".to_string()));
}
#[test]
fn test_mapped_address_fallback_ipv4() {
// IP 192.168.1.1 = 0xC0A80101 (no XOR)
let attr_data: [u8; 8] = [
0x00, 0x01, // reserved + family (IPv4)
0x00, 0x50, // port 80
0xC0, 0xA8, 0x01, 0x01, // IP
];
let data = build_stun_response(&[(ATTR_MAPPED_ADDRESS, &attr_data)]);
let txn_id = [0u8; 12];
let result = parse_stun_response(&data, &txn_id);
assert_eq!(result, Some("192.168.1.1".to_string()));
}
#[test]
fn test_response_too_short() {
let data = vec![0u8; 19]; // < 20 bytes
let txn_id = [0u8; 12];
assert_eq!(parse_stun_response(&data, &txn_id), None);
}
#[test]
fn test_wrong_msg_type() {
// Build with correct helper then overwrite msg_type to 0x0001 (Binding Request)
let mut data = build_stun_response(&[]);
data[0] = 0x00;
data[1] = 0x01;
let txn_id = [0u8; 12];
assert_eq!(parse_stun_response(&data, &txn_id), None);
}
#[test]
fn test_no_mapped_address_attributes() {
// Valid response with no attributes
let data = build_stun_response(&[]);
let txn_id = [0u8; 12];
assert_eq!(parse_stun_response(&data, &txn_id), None);
}
#[test]
fn test_xor_preferred_over_mapped() {
// XOR gives 203.0.113.1, MAPPED gives 192.168.1.1
let xor_data: [u8; 8] = [
0x00, 0x01,
0x11, 0x2B,
0xEA, 0x12, 0xD5, 0x43,
];
let mapped_data: [u8; 8] = [
0x00, 0x01,
0x00, 0x50,
0xC0, 0xA8, 0x01, 0x01,
];
// XOR listed first — should be preferred
let data = build_stun_response(&[
(ATTR_XOR_MAPPED_ADDRESS, &xor_data),
(ATTR_MAPPED_ADDRESS, &mapped_data),
]);
let txn_id = [0u8; 12];
let result = parse_stun_response(&data, &txn_id);
assert_eq!(result, Some("203.0.113.1".to_string()));
}
#[test]
fn test_truncated_attribute_data() {
// Attribute claims 8 bytes but only 4 are present
let mut data = build_stun_response(&[]);
// Manually append a truncated XOR_MAPPED_ADDRESS attribute
let attr_type = ATTR_XOR_MAPPED_ADDRESS.to_be_bytes();
let attr_len = 8u16.to_be_bytes(); // claims 8 bytes
let truncated = [0x00, 0x01, 0x11, 0x2B]; // only 4 bytes
// Update message length
let new_msg_len = (attr_type.len() + attr_len.len() + truncated.len()) as u16;
data[2..4].copy_from_slice(&new_msg_len.to_be_bytes());
data.extend_from_slice(&attr_type);
data.extend_from_slice(&attr_len);
data.extend_from_slice(&truncated);
let txn_id = [0u8; 12];
// Should return None, not panic
assert_eq!(parse_stun_response(&data, &txn_id), None);
}
}
/// Generate 12 random bytes for transaction ID.
fn rand_bytes() -> [u8; 12] {
let mut bytes = [0u8; 12];

View File

@@ -6,6 +6,7 @@ pub const FRAME_DATA: u8 = 0x02;
pub const FRAME_CLOSE: u8 = 0x03;
pub const FRAME_DATA_BACK: u8 = 0x04;
pub const FRAME_CLOSE_BACK: u8 = 0x05;
pub const FRAME_CONFIG: u8 = 0x06; // Hub -> Edge: configuration update
// Frame header size: 4 (stream_id) + 1 (type) + 4 (length) = 9 bytes
pub const FRAME_HEADER_SIZE: usize = 9;
@@ -169,4 +170,127 @@ mod tests {
// EOF
assert!(reader.next_frame().await.unwrap().is_none());
}
#[test]
fn test_encode_frame_config_type() {
let payload = b"{\"listenPorts\":[443]}";
let encoded = encode_frame(0, FRAME_CONFIG, payload);
assert_eq!(encoded[4], FRAME_CONFIG);
assert_eq!(&encoded[0..4], &0u32.to_be_bytes());
assert_eq!(&encoded[9..], payload.as_slice());
}
#[test]
fn test_encode_frame_data_back_type() {
let payload = b"response data";
let encoded = encode_frame(7, FRAME_DATA_BACK, payload);
assert_eq!(encoded[4], FRAME_DATA_BACK);
assert_eq!(&encoded[0..4], &7u32.to_be_bytes());
assert_eq!(&encoded[5..9], &(payload.len() as u32).to_be_bytes());
assert_eq!(&encoded[9..], payload.as_slice());
}
#[test]
fn test_encode_frame_close_back_type() {
let encoded = encode_frame(99, FRAME_CLOSE_BACK, &[]);
assert_eq!(encoded[4], FRAME_CLOSE_BACK);
assert_eq!(&encoded[0..4], &99u32.to_be_bytes());
assert_eq!(&encoded[5..9], &0u32.to_be_bytes());
assert_eq!(encoded.len(), FRAME_HEADER_SIZE);
}
#[test]
fn test_encode_frame_large_stream_id() {
let encoded = encode_frame(u32::MAX, FRAME_DATA, b"x");
assert_eq!(&encoded[0..4], &u32::MAX.to_be_bytes());
assert_eq!(encoded[4], FRAME_DATA);
assert_eq!(&encoded[5..9], &1u32.to_be_bytes());
assert_eq!(encoded[9], b'x');
}
#[tokio::test]
async fn test_frame_reader_max_payload_rejection() {
let mut data = Vec::new();
data.extend_from_slice(&1u32.to_be_bytes());
data.push(FRAME_DATA);
data.extend_from_slice(&(MAX_PAYLOAD_SIZE + 1).to_be_bytes());
let cursor = std::io::Cursor::new(data);
let mut reader = FrameReader::new(cursor);
let result = reader.next_frame().await;
assert!(result.is_err());
let err = result.unwrap_err();
assert_eq!(err.kind(), std::io::ErrorKind::InvalidData);
}
#[tokio::test]
async fn test_frame_reader_eof_mid_header() {
// Only 5 bytes — not enough for a 9-byte header
let data = vec![0u8; 5];
let cursor = std::io::Cursor::new(data);
let mut reader = FrameReader::new(cursor);
// Should return Ok(None) on partial header EOF
let result = reader.next_frame().await;
assert!(result.unwrap().is_none());
}
#[tokio::test]
async fn test_frame_reader_eof_mid_payload() {
// Full header claiming 100 bytes of payload, but only 10 bytes present
let mut data = Vec::new();
data.extend_from_slice(&1u32.to_be_bytes());
data.push(FRAME_DATA);
data.extend_from_slice(&100u32.to_be_bytes());
data.extend_from_slice(&[0xAB; 10]);
let cursor = std::io::Cursor::new(data);
let mut reader = FrameReader::new(cursor);
let result = reader.next_frame().await;
assert!(result.is_err());
}
#[tokio::test]
async fn test_frame_reader_all_frame_types() {
let types = [
FRAME_OPEN,
FRAME_DATA,
FRAME_CLOSE,
FRAME_DATA_BACK,
FRAME_CLOSE_BACK,
FRAME_CONFIG,
];
let mut data = Vec::new();
for (i, &ft) in types.iter().enumerate() {
let payload = format!("payload_{}", i);
data.extend_from_slice(&encode_frame(i as u32, ft, payload.as_bytes()));
}
let cursor = std::io::Cursor::new(data);
let mut reader = FrameReader::new(cursor);
for (i, &ft) in types.iter().enumerate() {
let frame = reader.next_frame().await.unwrap().unwrap();
assert_eq!(frame.stream_id, i as u32);
assert_eq!(frame.frame_type, ft);
assert_eq!(frame.payload, format!("payload_{}", i).as_bytes());
}
assert!(reader.next_frame().await.unwrap().is_none());
}
#[tokio::test]
async fn test_frame_reader_zero_length_payload() {
let data = encode_frame(42, FRAME_CLOSE, &[]);
let cursor = std::io::Cursor::new(data);
let mut reader = FrameReader::new(cursor);
let frame = reader.next_frame().await.unwrap().unwrap();
assert_eq!(frame.stream_id, 42);
assert_eq!(frame.frame_type, FRAME_CLOSE);
assert!(frame.payload.is_empty());
}
}

35
test/test.classes.node.ts Normal file
View File

@@ -0,0 +1,35 @@
import { expect, tap } from '@push.rocks/tapbundle';
import { EventEmitter } from 'events';
import { RemoteIngressHub, RemoteIngressEdge } from '../ts/index.js';
tap.test('RemoteIngressHub constructor does not throw', async () => {
const hub = new RemoteIngressHub();
expect(hub).toBeTruthy();
});
tap.test('RemoteIngressHub is instanceof EventEmitter', async () => {
const hub = new RemoteIngressHub();
expect(hub).toBeInstanceOf(EventEmitter);
});
tap.test('RemoteIngressHub.running is false before start', async () => {
const hub = new RemoteIngressHub();
expect(hub.running).toBeFalse();
});
tap.test('RemoteIngressEdge constructor does not throw', async () => {
const edge = new RemoteIngressEdge();
expect(edge).toBeTruthy();
});
tap.test('RemoteIngressEdge is instanceof EventEmitter', async () => {
const edge = new RemoteIngressEdge();
expect(edge).toBeInstanceOf(EventEmitter);
});
tap.test('RemoteIngressEdge.running is false before start', async () => {
const edge = new RemoteIngressEdge();
expect(edge.running).toBeFalse();
});
export default tap.start();

152
test/test.token.node.ts Normal file
View File

@@ -0,0 +1,152 @@
import { expect, tap } from '@push.rocks/tapbundle';
import { encodeConnectionToken, decodeConnectionToken, type IConnectionTokenData } from '../ts/classes.token.js';
tap.test('token roundtrip with unicode chars in secret', async () => {
const data: IConnectionTokenData = {
hubHost: 'hub.example.com',
hubPort: 8443,
edgeId: 'edge-1',
secret: 'sécret-with-ünïcödé-日本語',
};
const token = encodeConnectionToken(data);
const decoded = decodeConnectionToken(token);
expect(decoded.secret).toEqual(data.secret);
});
tap.test('token roundtrip with empty edgeId', async () => {
const data: IConnectionTokenData = {
hubHost: 'hub.test',
hubPort: 443,
edgeId: '',
secret: 'key',
};
const token = encodeConnectionToken(data);
const decoded = decodeConnectionToken(token);
expect(decoded.edgeId).toEqual('');
});
tap.test('token roundtrip with port 0', async () => {
const data: IConnectionTokenData = {
hubHost: 'h',
hubPort: 0,
edgeId: 'e',
secret: 's',
};
const token = encodeConnectionToken(data);
const decoded = decodeConnectionToken(token);
expect(decoded.hubPort).toEqual(0);
});
tap.test('token roundtrip with port 65535', async () => {
const data: IConnectionTokenData = {
hubHost: 'h',
hubPort: 65535,
edgeId: 'e',
secret: 's',
};
const token = encodeConnectionToken(data);
const decoded = decodeConnectionToken(token);
expect(decoded.hubPort).toEqual(65535);
});
tap.test('token roundtrip with very long secret (10k chars)', async () => {
const longSecret = 'x'.repeat(10000);
const data: IConnectionTokenData = {
hubHost: 'host',
hubPort: 1234,
edgeId: 'edge',
secret: longSecret,
};
const token = encodeConnectionToken(data);
const decoded = decodeConnectionToken(token);
expect(decoded.secret).toEqual(longSecret);
expect(decoded.secret.length).toEqual(10000);
});
tap.test('token string is URL-safe', async () => {
const data: IConnectionTokenData = {
hubHost: 'hub.example.com',
hubPort: 8443,
edgeId: 'edge-001',
secret: 'super+secret/key==with+special/chars',
};
const token = encodeConnectionToken(data);
expect(token).toMatch(/^[A-Za-z0-9_-]+$/);
});
tap.test('decode empty string throws', async () => {
let error: Error | undefined;
try {
decodeConnectionToken('');
} catch (e) {
error = e as Error;
}
expect(error).toBeInstanceOf(Error);
});
tap.test('decode valid base64 but wrong JSON shape throws missing required fields', async () => {
// Encode { "a": 1, "b": 2 } — valid JSON but wrong shape
const token = Buffer.from(JSON.stringify({ a: 1, b: 2 }), 'utf-8')
.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
let error: Error | undefined;
try {
decodeConnectionToken(token);
} catch (e) {
error = e as Error;
}
expect(error).toBeInstanceOf(Error);
expect(error!.message).toInclude('missing required fields');
});
tap.test('decode valid JSON but wrong field types throws missing required fields', async () => {
// h is number instead of string, p is string instead of number
const token = Buffer.from(JSON.stringify({ h: 123, p: 'notnum', e: 'e', s: 's' }), 'utf-8')
.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
let error: Error | undefined;
try {
decodeConnectionToken(token);
} catch (e) {
error = e as Error;
}
expect(error).toBeInstanceOf(Error);
expect(error!.message).toInclude('missing required fields');
});
tap.test('decode with extra fields succeeds', async () => {
const token = Buffer.from(
JSON.stringify({ h: 'host', p: 443, e: 'edge', s: 'secret', extra: 'ignored' }),
'utf-8',
)
.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
const decoded = decodeConnectionToken(token);
expect(decoded.hubHost).toEqual('host');
expect(decoded.hubPort).toEqual(443);
expect(decoded.edgeId).toEqual('edge');
expect(decoded.secret).toEqual('secret');
});
tap.test('encode is deterministic', async () => {
const data: IConnectionTokenData = {
hubHost: 'hub.test',
hubPort: 8443,
edgeId: 'edge-1',
secret: 'deterministic-key',
};
const token1 = encodeConnectionToken(data);
const token2 = encodeConnectionToken(data);
expect(token1).toEqual(token2);
});
export default tap.start();

View File

@@ -9,4 +9,53 @@ tap.test('should export RemoteIngressEdge', async () => {
expect(remoteingress.RemoteIngressEdge).toBeTypeOf('function');
});
tap.test('should export encodeConnectionToken and decodeConnectionToken', async () => {
expect(remoteingress.encodeConnectionToken).toBeTypeOf('function');
expect(remoteingress.decodeConnectionToken).toBeTypeOf('function');
});
tap.test('should roundtrip encode → decode a connection token', async () => {
const data: remoteingress.IConnectionTokenData = {
hubHost: 'hub.example.com',
hubPort: 8443,
edgeId: 'edge-001',
secret: 'super-secret-key',
};
const token = remoteingress.encodeConnectionToken(data);
const decoded = remoteingress.decodeConnectionToken(token);
expect(decoded.hubHost).toEqual(data.hubHost);
expect(decoded.hubPort).toEqual(data.hubPort);
expect(decoded.edgeId).toEqual(data.edgeId);
expect(decoded.secret).toEqual(data.secret);
});
tap.test('should throw on malformed token', async () => {
let error: Error | undefined;
try {
remoteingress.decodeConnectionToken('not-valid-json!!!');
} catch (e) {
error = e as Error;
}
expect(error).toBeInstanceOf(Error);
expect(error!.message).toInclude('Invalid connection token');
});
tap.test('should throw on token with missing fields', async () => {
// Encode a partial object (missing 'p' and 's')
const partial = Buffer.from(JSON.stringify({ h: 'host', e: 'edge' }), 'utf-8')
.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
let error: Error | undefined;
try {
remoteingress.decodeConnectionToken(partial);
} catch (e) {
error = e as Error;
}
expect(error).toBeInstanceOf(Error);
expect(error!.message).toInclude('missing required fields');
});
export default tap.start();

View File

@@ -3,6 +3,6 @@
*/
export const commitinfo = {
name: '@serve.zone/remoteingress',
version: '3.0.1',
version: '4.3.0',
description: 'Edge ingress tunnel for DcRouter - accepts incoming TCP connections at network edge and tunnels them to DcRouter SmartProxy preserving client IP via PROXY protocol v1.'
}

View File

@@ -1,5 +1,6 @@
import * as plugins from './plugins.js';
import { EventEmitter } from 'events';
import { decodeConnectionToken } from './classes.token.js';
// Command map for the edge side of remoteingress-bin
type TEdgeCommands = {
@@ -13,8 +14,6 @@ type TEdgeCommands = {
hubPort: number;
edgeId: string;
secret: string;
listenPorts: number[];
stunIntervalSecs?: number;
};
result: { started: boolean };
};
@@ -39,13 +38,12 @@ export interface IEdgeConfig {
hubPort?: number;
edgeId: string;
secret: string;
listenPorts: number[];
stunIntervalSecs?: number;
}
export class RemoteIngressEdge extends EventEmitter {
private bridge: InstanceType<typeof plugins.smartrust.RustBridge<TEdgeCommands>>;
private started = false;
private statusInterval: ReturnType<typeof setInterval> | undefined;
constructor() {
super();
@@ -61,9 +59,13 @@ export class RemoteIngressEdge extends EventEmitter {
requestTimeoutMs: 30_000,
readyTimeoutMs: 10_000,
localPaths: [
plugins.path.join(packageDir, 'dist_rust'),
plugins.path.join(packageDir, 'rust', 'target', 'release'),
plugins.path.join(packageDir, 'rust', 'target', 'debug'),
// Platform-suffixed binary in dist_rust (production)
plugins.path.join(packageDir, 'dist_rust', `remoteingress-bin_${process.platform === 'win32' ? 'windows' : 'linux'}_${process.arch === 'x64' ? 'amd64' : process.arch}`),
// Exact binaryName fallback in dist_rust
plugins.path.join(packageDir, 'dist_rust', 'remoteingress-bin'),
// Development build paths (cargo output uses exact name)
plugins.path.join(packageDir, 'rust', 'target', 'release', 'remoteingress-bin'),
plugins.path.join(packageDir, 'rust', 'target', 'debug', 'remoteingress-bin'),
],
searchSystemPath: false,
});
@@ -78,33 +80,72 @@ export class RemoteIngressEdge extends EventEmitter {
this.bridge.on('management:publicIpDiscovered', (data: { ip: string }) => {
this.emit('publicIpDiscovered', data);
});
this.bridge.on('management:portsAssigned', (data: { listenPorts: number[] }) => {
console.log(`[RemoteIngressEdge] Ports assigned by hub: ${data.listenPorts.join(', ')}`);
this.emit('portsAssigned', data);
});
this.bridge.on('management:portsUpdated', (data: { listenPorts: number[] }) => {
console.log(`[RemoteIngressEdge] Ports updated by hub: ${data.listenPorts.join(', ')}`);
this.emit('portsUpdated', data);
});
}
/**
* Start the edge — spawns the Rust binary and connects to the hub.
* Accepts either a connection token or an explicit IEdgeConfig.
*/
public async start(config: IEdgeConfig): Promise<void> {
public async start(config: { token: string } | IEdgeConfig): Promise<void> {
let edgeConfig: IEdgeConfig;
if ('token' in config) {
const decoded = decodeConnectionToken(config.token);
edgeConfig = {
hubHost: decoded.hubHost,
hubPort: decoded.hubPort,
edgeId: decoded.edgeId,
secret: decoded.secret,
};
} else {
edgeConfig = config;
}
const spawned = await this.bridge.spawn();
if (!spawned) {
throw new Error('Failed to spawn remoteingress-bin');
}
await this.bridge.sendCommand('startEdge', {
hubHost: config.hubHost,
hubPort: config.hubPort ?? 8443,
edgeId: config.edgeId,
secret: config.secret,
listenPorts: config.listenPorts,
stunIntervalSecs: config.stunIntervalSecs,
hubHost: edgeConfig.hubHost,
hubPort: edgeConfig.hubPort ?? 8443,
edgeId: edgeConfig.edgeId,
secret: edgeConfig.secret,
});
this.started = true;
// Start periodic status logging
this.statusInterval = setInterval(async () => {
try {
const status = await this.getStatus();
console.log(
`[RemoteIngressEdge] Status: connected=${status.connected}, ` +
`streams=${status.activeStreams}, ports=[${status.listenPorts.join(',')}], ` +
`publicIp=${status.publicIp ?? 'unknown'}`
);
} catch {
// Bridge may be shutting down
}
}, 60_000);
}
/**
* Stop the edge and kill the Rust process.
*/
public async stop(): Promise<void> {
if (this.statusInterval) {
clearInterval(this.statusInterval);
this.statusInterval = undefined;
}
if (this.started) {
try {
await this.bridge.sendCommand('stopEdge', {} as Record<string, never>);

View File

@@ -11,6 +11,8 @@ type THubCommands = {
params: {
tunnelPort: number;
targetHost?: string;
tlsCertPem?: string;
tlsKeyPem?: string;
};
result: { started: boolean };
};
@@ -20,7 +22,7 @@ type THubCommands = {
};
updateAllowedEdges: {
params: {
edges: Array<{ id: string; secret: string }>;
edges: Array<{ id: string; secret: string; listenPorts?: number[]; stunIntervalSecs?: number }>;
};
result: { updated: boolean };
};
@@ -33,6 +35,7 @@ type THubCommands = {
edgeId: string;
connectedAt: number;
activeStreams: number;
peerAddr: string;
}>;
};
};
@@ -41,6 +44,10 @@ type THubCommands = {
export interface IHubConfig {
tunnelPort?: number;
targetHost?: string;
tls?: {
certPem?: string;
keyPem?: string;
};
}
export class RemoteIngressHub extends EventEmitter {
@@ -61,15 +68,19 @@ export class RemoteIngressHub extends EventEmitter {
requestTimeoutMs: 30_000,
readyTimeoutMs: 10_000,
localPaths: [
plugins.path.join(packageDir, 'dist_rust'),
plugins.path.join(packageDir, 'rust', 'target', 'release'),
plugins.path.join(packageDir, 'rust', 'target', 'debug'),
// Platform-suffixed binary in dist_rust (production)
plugins.path.join(packageDir, 'dist_rust', `remoteingress-bin_${process.platform === 'win32' ? 'windows' : 'linux'}_${process.arch === 'x64' ? 'amd64' : process.arch}`),
// Exact binaryName fallback in dist_rust
plugins.path.join(packageDir, 'dist_rust', 'remoteingress-bin'),
// Development build paths (cargo output uses exact name)
plugins.path.join(packageDir, 'rust', 'target', 'release', 'remoteingress-bin'),
plugins.path.join(packageDir, 'rust', 'target', 'debug', 'remoteingress-bin'),
],
searchSystemPath: false,
});
// Forward events from Rust binary
this.bridge.on('management:edgeConnected', (data: { edgeId: string }) => {
this.bridge.on('management:edgeConnected', (data: { edgeId: string; peerAddr: string }) => {
this.emit('edgeConnected', data);
});
this.bridge.on('management:edgeDisconnected', (data: { edgeId: string }) => {
@@ -95,6 +106,9 @@ export class RemoteIngressHub extends EventEmitter {
await this.bridge.sendCommand('startHub', {
tunnelPort: config.tunnelPort ?? 8443,
targetHost: config.targetHost ?? '127.0.0.1',
...(config.tls?.certPem && config.tls?.keyPem
? { tlsCertPem: config.tls.certPem, tlsKeyPem: config.tls.keyPem }
: {}),
});
this.started = true;
@@ -118,7 +132,7 @@ export class RemoteIngressHub extends EventEmitter {
/**
* Update the list of allowed edges that can connect to this hub.
*/
public async updateAllowedEdges(edges: Array<{ id: string; secret: string }>): Promise<void> {
public async updateAllowedEdges(edges: Array<{ id: string; secret: string; listenPorts?: number[]; stunIntervalSecs?: number }>): Promise<void> {
await this.bridge.sendCommand('updateAllowedEdges', { edges });
}

66
ts/classes.token.ts Normal file
View File

@@ -0,0 +1,66 @@
/**
* Connection token utilities for RemoteIngress edge connections.
* A token is a base64url-encoded compact JSON object carrying hub connection details.
*/
export interface IConnectionTokenData {
hubHost: string;
hubPort: number;
edgeId: string;
secret: string;
}
/**
* Encode connection data into a single opaque token string (base64url).
*/
export function encodeConnectionToken(data: IConnectionTokenData): string {
const compact = JSON.stringify({
h: data.hubHost,
p: data.hubPort,
e: data.edgeId,
s: data.secret,
});
// base64url: standard base64 with + → -, / → _, trailing = stripped
return Buffer.from(compact, 'utf-8')
.toString('base64')
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
}
/**
* Decode a connection token back into its constituent fields.
* Throws on malformed or incomplete tokens.
*/
export function decodeConnectionToken(token: string): IConnectionTokenData {
let parsed: { h?: unknown; p?: unknown; e?: unknown; s?: unknown };
try {
// Restore standard base64 from base64url
let base64 = token.replace(/-/g, '+').replace(/_/g, '/');
// Re-add padding
const remainder = base64.length % 4;
if (remainder === 2) base64 += '==';
else if (remainder === 3) base64 += '=';
const json = Buffer.from(base64, 'base64').toString('utf-8');
parsed = JSON.parse(json);
} catch {
throw new Error('Invalid connection token');
}
if (
typeof parsed.h !== 'string' ||
typeof parsed.p !== 'number' ||
typeof parsed.e !== 'string' ||
typeof parsed.s !== 'string'
) {
throw new Error('Invalid connection token: missing required fields');
}
return {
hubHost: parsed.h,
hubPort: parsed.p,
edgeId: parsed.e,
secret: parsed.s,
};
}

View File

@@ -1,2 +1,3 @@
export * from './classes.remoteingresshub.js';
export * from './classes.remoteingressedge.js';
export * from './classes.token.js';