thepraandClaude Opus 5.5
0dffbc27d6
MeWeb.Core runs seven checks concurrently and reports each as it settles:
online or behind a login page, this connection, the public IPv4 and IPv6
seen from v4./v6.meweb, the provider from a built-in map, the router
(UPnP IGD, NAT-PMP and PCP, read-only), address sharing (router WAN
against the echo, TTL hops only as a hint), and the history kept on the
device. The app draws the path from this device to the internet and lights
it node by node, with a card per check and a sheet listing every host it
contacts.
The provider map is iptoasn's table compressed to 2.1 MB by
tools/knowledge.cs and built before every app release; eleven Italian
provider profiles carry each fact with who said it, the source and the
month. The server gains a download page (en, it) and /download/{platform}
from the latest Gitea release.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
99 lines
7.5 KiB
Markdown
99 lines
7.5 KiB
Markdown
# CLAUDE.md — MeWeb quick reference
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Read `AGENT.md` first and cite `PATTERNS.md` for code rules. This file holds commands, the map and the pitfalls.
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## Commands
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```bash
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dotnet build src/MeWeb.Desktop/MeWeb.Desktop.csproj
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dotnet run --project src/MeWeb.Desktop
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dotnet run --project src/MeWeb.Server # ASPNETCORE_URLS=http://127.0.0.1:5481
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dotnet run tools/setup.cs -- --group jdk # pinned JDK 21 into tools/jdk
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dotnet run tools/setup.cs -- --group packaging # pinned nfpm into tools/packaging
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dotnet build src/MeWeb.Android/MeWeb.Android.csproj \
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-p:JavaSdkDirectory=$PWD/tools/jdk/linux-x64/jdk-21.0.12+8 -p:AndroidSdkDirectory=$HOME/Android/Sdk
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dotnet run --project tools/Screenshots -- dist/screenshots [en,it,...]
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dotnet run tools/strings.cs -- check # every language against English
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dotnet run tools/strings.cs -- set Key values.json # one key, every language at once
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dotnet run tools/strings.cs -- merge keys.json # many keys: {"Key": {"en": "…", "it": "…"}}
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dotnet run tools/strings.cs -- import fr fr.json # one language's drafts: {"Key": "…"}
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dotnet run tools/knowledge.cs # provider map -> artifacts/knowledge/ip2asn.bin
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dotnet run tools/languages.cs # regenerate data/languages.json from CLDR
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dotnet publish src/MeWeb.Desktop -c Release -r win-x64 --self-contained -p:PublishSingleFile=true \
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-p:IncludeNativeLibrariesForSelfExtract=true -p:EnableCompressionInSingleFile=true
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dotnet publish src/MeWeb.Desktop -c Release -r osx-arm64 --self-contained
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```
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The Android workload installs into the user SDK (`dotnet workload install android`); the system SDK in `/opt/dotnet`
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is root-owned, so CI uses the runner user's own `~/.dotnet` (passolo's `tools/release.sh` pattern).
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## Repository, CI and the variables they read
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| Name | Where | What |
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| `GITEA_URL` | shell, optional | Gitea base URL for `tools/gitea/*.sh`; default `https://git.thepra.dev` |
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| `GITEA_ORG` | shell, optional | organisation; default `Arasaka` |
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| `GITEA_REPO` | shell, optional | repository for `set_secret.sh`; default `MeWeb` |
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| (git credential store) | `~/.git-credentials` | the only Gitea authentication the scripts use: `git credential fill` for `git.thepra.dev` |
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| `MEWEB_KEYSTORE_B64` | Actions secret | the Android keystore, base64 (`tools/gitea/set_secret.sh`) |
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| `MEWEB_KEYSTORE_PASS` | Actions secret | its password (store and key share it), alias `meweb` |
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| `GITEA_TOKEN` | Actions, automatic | the job token; `release.sh` uses it as `RELEASE_TOKEN` to create the release and attach files |
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| `VERSION`, `COMMIT` | job env | written by `.gitea/scripts/prepare.sh` from `Directory.Build.props` and the commit |
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| `MEWEB_KEYSTORE` | release step | a temporary file in `$RUNNER_TEMP` decoded by `.gitea/scripts/android.sh`, removed on exit |
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`build.yml` runs on every push to `master`; `release.yml` on a `v*` tag (publishes the Gitea release) or by hand
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(`publish: false` builds every platform and deploys the server only). Both run on the Arasaka org runner `nuvola`,
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user `gitea-runner`, home `/var/lib/gitea-runner`: `tools/sdk.sh` installs the SDK from `global.json` into its
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`~/.dotnet` (the system SDK in `/opt/dotnet` is older and root-owned), and the JDK, nfpm and the Android SDK are
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cached in `~/.cache/meweb`. There is deliberately no `pull_request` trigger: the runner is the production box.
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The server's one-time root setup is `deploy/max/setup.sh` (user `meweb`, `/var/www/meweb.arasaka.software`,
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`/etc/meweb/meweb.env`, the unit, the runner's sudoers line, the certificate, nginx), run on the box through
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`arasaka.software`'s `tools/max/run.sh`.
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The Android release key: alias `meweb`, certificate SHA-256
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`5f52cff4f52f4e0b6da6cd044bfceaf78d1d42db24f2470602db7f19cbfdf846`. Never regenerate it.
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## Map
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| Path | What |
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| `src/MeWeb.Shared` | `Endpoints.cs` (routes and hosts), wire contracts, `MeWebJsonContext`, generated `BuildInfo` |
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| `src/MeWeb.Core` | the checks, no UI: `Net/` (address kinds, local network, TTL route), `Router/` (UPnP IGD, NAT-PMP, PCP, read-only), `Knowledge/` (provider map and profiles), `History/`, `Checks/` (`CheckRunner`, `Verdicts`, `ServerProbe`) |
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| `src/MeWeb.App` | Avalonia views and view models, `Services/Localizer.cs` (+ `{s:Tr Key}`), `Strings/<code>.json`, `Resources/Colors.axaml` |
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| `src/MeWeb.Desktop` | desktop head (`meweb` executable), Windows manifest |
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| `src/MeWeb.Android` | Android head (`software.arasaka.meweb`), resources, manifest |
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| `src/MeWeb.Server` | `meweb.arasaka.software`: `/api/info`, `/api/ip`, the download page `/` (en, it) and `/download/{platform}` from the latest Gitea release |
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| `data/languages.json` | 113 languages: code, autonym, English name, `rtl`, `reviewed` or `draft` |
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| `data/isps/*.json` | provider profiles: AS numbers, and per fact a value, who said it (`basis`), the source URL and the month |
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| `tools/knowledge.cs` | downloads iptoasn's `ip2asn-combined.tsv.gz` (cached in `tools/cache`, 12 h) and writes the brotli table `artifacts/knowledge/ip2asn.bin` (~2 MB), embedded by `MeWeb.Core` when present; `tools/release.cs` runs it before every app build |
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| `tools/setup.cs` + `setup.json` | pinned build tools |
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| `tools/Screenshots` | headless renders of every view in every language |
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| `branding/` | the icon (SVG source, PNG, ICO) |
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## Pitfalls
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- **A TTL ping needs an empty payload off-root.** .NET on Linux falls back to the `ping` utility without
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`CAP_NET_RAW` and refuses any custom buffer ("Unable to send custom ping payload"); `SendPingAsync(target, timeout, [],
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new PingOptions(ttl, false))` works and reports `TimeExceeded` with the hop's address.
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- **A 100.64.x.x hop is not proof of CGNAT.** The owner's Dimensione line has a public IPv4 on the FRITZ!Box and still
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shows `100.64.255.255` as hop 2. Only the router's own WAN address compared with the echo decides; hops are a hint.
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- **Routers answer the SSDP search they don't implement.** The FRITZ!Box 5530 answers an IGD:2 search while describing
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itself as IGD:1; the version comes from the description's `deviceType`. Its PCP answers `NOT_AUTHORIZED` (2).
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- **`HeadlessUnitTestSession.Dispatch` builds a fresh `Application` each call**, and `AttachDeveloperTools` throws the
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second time: the screenshot tool does the real check and every shot inside one `Dispatch`.
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- **Fluent's `Expander` paints its header from resources** (`ExpanderHeaderBackground`, …), not from `Background`; the
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`Expander.explain` style overrides them in `Style.Resources`.
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- **An address inside right-to-left text reorders around `→`.** `Texts.Isolate` wraps every literal value in U+2068/U+2069.
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- **Avalonia 12 Android head:** `[Application] MainApplication : AvaloniaAndroidApplication<App>` plus a non-generic
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`AvaloniaMainActivity`; the main view comes through `IActivityApplicationLifetime.MainViewFactory`, checked before
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`ISingleViewApplicationLifetime`.
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- **`ApplicationVersion` must be an integer**: computed from `Version` through separate `VersionMajor/Minor/Patch`
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properties; one nested property function left it unevaluated (`XA0003`).
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- **A headless Avalonia session does not end on its own** while the pulse animation runs: the screenshot tool calls
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`Environment.Exit(0)` after dispatching.
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- **The macOS apphost is ad-hoc signed by the .NET 10 SDK even on Linux** (`LC_CODE_SIGNATURE` present); Apple
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Silicon refuses unsigned arm64 code, so never strip it.
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- **The Windows single-file publish drops native `.pdb` files beside the exe**; only `meweb.exe` ships.
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