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Chat+ link previews: a link in a chat shows its page's title, text and picture, YouTube playable in place

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X's web chat shows a link as a bare card. An X tab on a chat page may now ask native code
(link_preview, x-capture only, chat pages only) for one link's preview. Native code fetches it:
https and public hosts only (addresses checked and pinned), never X's hosts, no cookies or
referrer, redirects re-checked, page head <= 512 KB, images <= 1.5 MB by magic bytes as data:,
30 fetches a minute, memory-only cache. Only the link leaves the page. On by default (owner,
2026-10-10).
This commit is contained in:
CRTkafa 2026-10-10 21:47:31 +08:00
parent 7530fb1de7
commit 6d1798038c
21 changed files with 1455 additions and 519 deletions
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20
apps/desktop/src-tauri/capabilities/x-capture.json
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@ -1,10 +1,10 @@
{
"$schema": "../gen/schemas/desktop-schema.json",
"identifier": "x-capture",
"description": "X tabs: append-only draft capture, opening the wayBetter tab, asking for the drafts popover under its composer and closing it, asking whether a captured draft exists for exactly its own post page (yes/no, no text or ids) and reporting keyword matches about itself. No reads of the local vault, no shell, filesystem or generic APIs.",
"webviews": ["tab-*"],
"local": false,
"platforms": ["macOS", "windows", "linux"],
"remote": { "urls": ["https://x.com/*"] },
"permissions": ["allow-capture-draft", "allow-open-panel", "allow-drafts-picker-open", "allow-drafts-popover-dismiss", "allow-drafts-hint", "allow-keyword-alert"]
}
{
"$schema": "../gen/schemas/desktop-schema.json",
"identifier": "x-capture",
"description": "X tabs: append-only draft capture, opening the wayBetter tab, asking for the drafts popover under its composer and closing it, asking whether a captured draft exists for exactly its own post page (yes/no, no text or ids), reporting keyword matches about itself and, on its own chat page only, asking for the preview of one link it shows (native fetch: public https hosts only, no cookies, size caps; src/link_preview.rs). No reads of the local vault, no shell, filesystem or generic APIs.",
"webviews": ["tab-*"],
"local": false,
"platforms": ["macOS", "windows", "linux"],
"remote": { "urls": ["https://x.com/*"] },
"permissions": ["allow-capture-draft", "allow-open-panel", "allow-drafts-picker-open", "allow-drafts-popover-dismiss", "allow-drafts-hint", "allow-keyword-alert", "allow-link-preview"]
}