Gate 'Proposer' to editors via /_auth/whoami

Reviewed-on: #71

src/layouts/EditionLayout.astro

@@ -379,6 +379,60 @@ const GITEA_REPO = import.meta.env.PUBLIC_GITEA_REPO ?? "";
     const FULL_TEXT_SOFT_LIMIT = 1600;
     const URL_HARD_LIMIT = 6500;
 
+    // ✅ Gate par groupe (Traefik→Authelia→LLDAP via /_auth/whoami)
+    const WHOAMI_PATH = "/_auth/whoami";
+    const PROPOSE_REQUIRED_GROUP = "editors";
+
+    let _authInfoPromise = null;
+
+    function parseWhoamiLine(text, key) {
+      const re = new RegExp(`^${key}:\\s*(.*)$`, "mi");
+      const m = String(text || "").match(re);
+      return (m?.[1] ?? "").trim();
+    }
+
+    async function getAuthInfo() {
+      if (_authInfoPromise) return _authInfoPromise;
+
+      _authInfoPromise = (async () => {
+        const res = await fetch(`${WHOAMI_PATH}?_=${Date.now()}`, {
+          credentials: "include",
+          cache: "no-store",
+          redirect: "follow",
+        });
+
+        const text = await res.text().catch(() => "");
+
+        const groups = parseWhoamiLine(text, "Remote-Groups")
+          .split(",")
+          .map((s) => s.trim())
+          .filter(Boolean);
+
+        return {
+          ok: Boolean(res && res.ok),
+          user: parseWhoamiLine(text, "Remote-User"),
+          name: parseWhoamiLine(text, "Remote-Name"),
+          email: parseWhoamiLine(text, "Remote-Email"),
+          groups,
+          raw: text,
+        };
+      })().catch(() => ({
+        ok: false,
+        user: "",
+        name: "",
+        email: "",
+        groups: [],
+        raw: "",
+      }));
+
+      return _authInfoPromise;
+    }
+
+    // Promise unique : est-on editor ?
+    const isEditorP = giteaReady
+      ? getAuthInfo().then((info) => info.groups.includes(PROPOSE_REQUIRED_GROUP)).catch(() => false)
+      : Promise.resolve(false);
+
     const quoteBlock = (s) =>
       String(s || "")
         .split(/\r?\n/)
@@ -493,6 +547,10 @@ const GITEA_REPO = import.meta.env.PUBLIC_GITEA_REPO ?? "";
         propose.textContent = "Proposer";
         propose.setAttribute("aria-label", "Proposer une correction sur Gitea");
 
+        // ✅ fail-closed DUR : inline-style (ne peut pas être overridé par ton CSS)
+        propose.style.display = "none";
+        propose.dataset.requiresGroup = PROPOSE_REQUIRED_GROUP;
+
         const raw = (p.textContent || "").trim().replace(/\s+/g, " ");
         const excerpt = raw.length > 420 ? (raw.slice(0, 420) + "…") : raw;
 
@@ -506,9 +564,6 @@ const GITEA_REPO = import.meta.env.PUBLIC_GITEA_REPO ?? "";
         propose.dataset.url = issueUrl;
         propose.dataset.full = raw;
 
-        // ❌ PAS de target=_blank ici
-        // ❌ PAS de rel noopener ici
-
         row.appendChild(propose);
       }
 
@@ -544,6 +599,20 @@ const GITEA_REPO = import.meta.env.PUBLIC_GITEA_REPO ?? "";
       p.appendChild(tools);
     }
 
+    // ✅ Après insertion : on autorise Proposer seulement si groupe editors
+    if (giteaReady) {
+      isEditorP.then((ok) => {
+        const els = document.querySelectorAll(".para-propose");
+        for (const el of els) {
+          if (ok) el.style.display = "";
+          else el.remove();
+        }
+      }).catch(() => {
+        // fail-closed
+        document.querySelectorAll(".para-propose").forEach((el) => el.remove());
+      });
+    }
+
     // Auto-checkpoint
     let lastAuto = 0;
     function writeLastSeen(id) {