feat(sites): add bilibili dynamic support (images and animated images)

Fetch `t.bilibili.com/<id>`, `www.bilibili.com/opus/<id>`,
`t.bilibili.com/h5/dynamic/detail/<id>` and `m.bilibili.com/dynamic/<id>`
through the anonymous `/x/polymer/web-dynamic/v1/detail` endpoint (no
cookie, no WBI signature; the site adds the device cookies
`/x/frontend/finger/spi` hands out, which is what lifts bilibili's
`-352` risk control).

Media: the `major.draw` grid (`.gif` sources become animations, the rest
photos with a downscaled `@518w.jpg` thumbnail used both as preview and
as the oversized fallback), an attached video's cover, and the quoted
dynamic's media for forwards. The video stream itself is not resolved;
`b23.tv` short links stay unmatched (they mostly point at videos, so
matching them would turn a silently ignored link into a failure reply).

`-352`/`-412` map to a retryable error so the queue backs off instead of
dropping the post; a removed dynamic (`500`) is permanent.

Registry-driven, so no bot-side code changes beyond the site lists in the
command replies; found while researching nazurin and
telegram-bili-feed-helper (see BILIBILI_PLAN.md).
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# TelegramXMediaBot
A Telegram bot that turns post links from X / Twitter, Pixiv, Bluesky, and Misskey (misskey.io) into media messages (images, video, GIF) with the post's title, author, and tags.
A Telegram bot that turns post links from X / Twitter, Pixiv, Bluesky, Misskey (misskey.io), and Bilibili dynamics into media messages (images, video, GIF) with the post's title, author, and tags.
## Features
@@ -30,10 +30,12 @@ docker build -t tgxmb .
docker run --rm -d --name tgxmb --env-file .env -v ./data:/app/data tgxmb
```
Environment variables: `TELOXIDE_TOKEN` (required), `PIXIV_REFRESH_TOKEN`, `BOT_ADMIN`, `EDIT_MESSAGE_TTL_SECONDS`, `LINK_CACHE_TTL_SECONDS`, `RUST_LOG`, `TELOXIDE_PROXY`, `WEBHOOK*`, `TWITTER_AUTH_TOKEN` (optional).
Environment variables: `TELOXIDE_TOKEN` (required), `PIXIV_REFRESH_TOKEN`, `BOT_ADMIN`, `EDIT_MESSAGE_TTL_SECONDS`, `LINK_CACHE_TTL_SECONDS`, `RUST_LOG`, `TELOXIDE_PROXY`, `WEBHOOK*`, `TWITTER_AUTH_TOKEN` (optional), `BILIBILI_COOKIE` (optional).
NSFW tweets: the public syndication endpoint does not return sensitive content. Setting `TWITTER_AUTH_TOKEN` (the `auth_token` cookie value of a logged-in x.com session) lets the bot fetch NSFW media in the logged-in state only when it hits a withheld tweet; without it, the bot reports no media.
Bilibili dynamics are fetched anonymously by default (no login; the bot fetches bilibili's anonymous `buvid3`/`buvid4` device cookies itself to raise the success rate). If the server's egress IP gets hard-flagged by bilibili (persistent `risk control (-352)` log lines or HTTP 412), set `BILIBILI_COOKIE` (the whole cookie string from a logged-in browser, e.g. `SESSDATA=…; bili_jct=…`) to restore access. Only a dynamic's images and animations are sent; an attached video degrades to its cover image.
### Webhook deployment (needs a reverse proxy)
`docker-compose.yml.example` ships an [nginx-proxy](https://github.com/nginx-proxy/nginx-proxy) + [acme-companion](https://github.com/nginx-proxy/acme-companion) reverse-proxy orchestration. Pick one deployment shape:
@@ -81,6 +83,7 @@ Telegram only accepts ports 443/80/88/8443.
|---|---|
| `TELOXIDE_TOKEN` | Bot token (required) |
| `PIXIV_REFRESH_TOKEN` | Pixiv refresh token; Pixiv is disabled without it |
| `BILIBILI_COOKIE` | Optional bilibili cookie string (`SESSDATA=…; bili_jct=…`); only needed when the egress IP stays risk-controlled (device cookies are fetched automatically) |
| `BOT_ADMIN` | Admin chat IDs, comma-separated; receives start/stop notifications |
| `EDIT_MESSAGE_TTL_SECONDS` | Edit-before-forward record expiry in seconds, default 86400 |
| `LINK_CACHE_TTL_SECONDS` | Link-result cache expiry in seconds, default 604800 (7 days) |
@@ -111,7 +114,7 @@ Telegram only accepts ports 443/80/88/8443.
| `/remove_forward_channel` | Remove the forward channel |
| `/edit_before_forward` | Toggle "edit before forward": when enabled, the bot posts a prompt after forwarding; replying to it edits the first forwarded message's caption (or taps a template button to apply one) |
| `/set_template <name>` | Reply to a message containing `[]` to save it as a named template; `[]` is replaced by the original post link when forwarding (used with "edit before forward") |
| `/set_format <site> <format>` | Customize the caption format for one site. Sites: `twitter` / `bsky` / `pixiv` / `misskey`. Placeholders: `{url}` `{author}` `{author_url}` `{title}` `{tags}` |
| `/set_format <site> <format>` | Customize the caption format for one site. Sites: `twitter` / `bsky` / `pixiv` / `misskey` / `bilibili`. Placeholders: `{url}` `{author}` `{author_url}` `{title}` `{tags}` |
| `/clear_cache [link]` | Clear the link cache (admin only); with a link only that entry, otherwise everything |
| `/bot_dict` | Show the current chat state (debugging; admin only) |
| `/test <link>` | Parse a link and send its media; no channel forward, no edit-before-forward prompt (send only) |