162 lines
6.3 KiB
Markdown
162 lines
6.3 KiB
Markdown
# gramsrv
|
|
|
|
`gramsrv` is a Go implementation of a Telegram-like MTProto server, focused on
|
|
real client compatibility, repeatable protocol research, and self-hosted chat
|
|
experiments.
|
|
|
|
[Website](https://telesrv.net) · [Discussion group](https://t.me/telesrv_chat) · [Channel](https://t.me/telesrv) · [中文 README](README.zh-CN.md)
|
|
|
|
|
|
|
|
`gramsrv` is independent and unofficial. It is not affiliated with, endorsed by,
|
|
or sponsored by Telegram or the official Telegram team.
|
|
|
|
## Highlights
|
|
|
|
- **Multi-device is implemented.** Telegram Desktop and Android clients can use
|
|
the same server state, with scoped sessions, online fan-out, current-session
|
|
exclusion, and offline recovery through update difference APIs.
|
|
- **Telegram Desktop is the primary compatibility target.** The public build
|
|
tracks a pinned TDesktop baseline and keeps compatibility work documented.
|
|
- **Android compatibility is active.** The current public screenshots include a
|
|
patched Android client connected to the same server path.
|
|
- **Core chat paths work today.** Login, users, contacts, dialogs, private
|
|
messages, supergroups/channels, media/files, profile/channel photos,
|
|
stickers, reactions, language packs, and presence are covered on the main
|
|
path.
|
|
- **Production boundaries are explicit.** Large-scale public channels,
|
|
multi-DC/file-DC/CDN, Bot API, payments, stories, Premium business logic,
|
|
abuse controls, and production object storage are outside the current public
|
|
scope.
|
|
|
|
For downloads, public information, and the current hosted experience entry,
|
|
visit [telesrv.net](https://telesrv.net). For questions, compatibility reports,
|
|
and development discussion, join [t.me/telesrv_chat](https://t.me/telesrv_chat).
|
|
|
|
## Screenshots
|
|
|
|
| Telegram Desktop | Android |
|
|
|---|---|
|
|
| <img src="docs/assets/tdesktop1.png" alt="Telegram Desktop connected to gramsrv" width="520"> | <img src="docs/assets/android1.png" alt="Android client connected to gramsrv" width="260"> |
|
|
|
|
## Repository Layout
|
|
|
|
```text
|
|
cmd/telesrv/ server entrypoint
|
|
deploy/ docker-compose and PostgreSQL migrations
|
|
internal/mtprotoedge/ MTProto transport, auth key, session, ack/resend
|
|
internal/rpc/ TL router and Telegram Desktop compatibility handlers
|
|
internal/app/ domain services
|
|
internal/domain/ protocol-independent domain models
|
|
internal/store/ store interfaces and memory/postgres/redis backends
|
|
docs/ compatibility notes and module design docs
|
|
```
|
|
|
|
## Quick Start
|
|
|
|
Requirements:
|
|
|
|
- Go 1.25 or newer
|
|
- Docker Desktop or Docker Engine with Compose
|
|
- OpenSSL, if you want to build a matching Telegram Desktop client
|
|
|
|
Start PostgreSQL and Redis:
|
|
|
|
```powershell
|
|
docker compose -f deploy/docker-compose.yml up -d
|
|
```
|
|
|
|
Build and run the server:
|
|
|
|
```powershell
|
|
go build -o bin/gramsrv.exe ./cmd/telesrv
|
|
.\bin\gramsrv.exe
|
|
```
|
|
|
|
On first start, `gramsrv` creates `data/server_rsa.pem`, applies all database
|
|
migrations, seeds bundled language packs, and listens on `0.0.0.0:2398`.
|
|
|
|
Useful development environment variables:
|
|
|
|
| Variable | Default | Meaning |
|
|
|---|---:|---|
|
|
| `TELESRV_LISTEN` | `0.0.0.0:2398` | MTProto listen address |
|
|
| `TELESRV_ADVERTISE_IP` | `127.0.0.1` | IP written into `help.getConfig` |
|
|
| `TELESRV_DC` | `2` | self-hosted DC id |
|
|
| `TELESRV_DEV_AUTH_CODE` | `12345` | fixed login code for local development |
|
|
| `TELESRV_POSTGRES_DSN` | local Compose DSN | PostgreSQL connection string |
|
|
| `TELESRV_REDIS_ADDR` | `localhost:6399` | Redis address |
|
|
| `TELESRV_STICKER_SEED_DIR` | `data/sticker-seed` | optional exported sticker/reaction seed directory |
|
|
|
|
The optional sticker seed directory is skipped when it does not exist.
|
|
|
|
## Client Compatibility
|
|
|
|
Stock Telegram clients will not connect to `gramsrv` because they trust
|
|
Telegram's production DC list and RSA keys. Use a patched experience client from
|
|
the [official website](https://telesrv.net), or build your own client with a
|
|
minimal protocol patch.
|
|
|
|
Current Telegram Desktop baseline:
|
|
|
|
- Telegram Desktop commit: `9caf32dffc90ddd9bb08ad5777b865f729fa167b`
|
|
- TL layer: 225
|
|
- Local DC: `127.0.0.1:2398`, DC id `2`
|
|
|
|
After `gramsrv` generates `data/server_rsa.pem`, export the matching public key:
|
|
|
|
```powershell
|
|
openssl rsa -in data/server_rsa.pem -RSAPublicKey_out -out data/server_rsa.pub
|
|
```
|
|
|
|
Patch `Telegram/SourceFiles/mtproto/mtproto_dc_options.cpp`:
|
|
|
|
1. Replace the built-in production/test DC lists with your `gramsrv` endpoint.
|
|
2. Replace both `kPublicRSAKeys` and `kTestPublicRSAKeys` with
|
|
`data/server_rsa.pub`.
|
|
3. Add `Flag::f_tcpo_only` to the built-in DC flags.
|
|
|
|
Keep the client patch minimal: endpoint, RSA key, and TCP-only flags only.
|
|
|
|
## Multi-Device Smoke Test
|
|
|
|
Use separate client working directories so sessions do not share local `tdata`:
|
|
|
|
```powershell
|
|
$tdesktop = "C:\path\to\tdesktop\out\Debug\Telegram.exe"
|
|
Start-Process $tdesktop -ArgumentList @("-workdir", "$PWD\.tdata-alice")
|
|
Start-Process $tdesktop -ArgumentList @("-workdir", "$PWD\.tdata-bob")
|
|
```
|
|
|
|
Log in with different phone numbers. In local development, the login code is
|
|
`12345` unless you changed `TELESRV_DEV_AUTH_CODE`.
|
|
|
|
Recommended checks:
|
|
|
|
- Send private messages, stickers, media, replies, forwards, edits, deletes,
|
|
and read receipts between two users.
|
|
- Keep one device online and restart another device to verify offline
|
|
`updates.getDifference` recovery.
|
|
- Open the same account from multiple sessions and confirm current-session
|
|
echoes are not duplicated while other online sessions receive updates.
|
|
- Check server logs for no new `NOT_IMPLEMENTED`, `Unhandled RPC`, `bad_msg`,
|
|
panic, or internal errors.
|
|
|
|
## Documentation
|
|
|
|
- [Compatibility matrix](docs/compatibility-matrix.md)
|
|
- [Telegram Desktop patch notes](docs/tdesktop-patch-notes.md)
|
|
- [Persistence layer](docs/persistence-layer.md)
|
|
- [Message module](docs/message-module.md)
|
|
- [Channel module](docs/channel-module.md)
|
|
- [Performance audit](docs/performance-audit.md)
|
|
|
|
## Contributing
|
|
|
|
Compatibility-driven contributions are welcome. Useful areas include Telegram
|
|
Desktop and Android reports, reproducible RPC traces, focused bug fixes,
|
|
multi-device update tests, performance work on already implemented paths, and
|
|
documentation that makes local setup easier.
|
|
|
|
If a change affects visible client behavior, include the client version/commit,
|
|
the RPC path you tested, and the server log result.
|