fix(tea-token): 依主機挑 tea 登入，避免把 A 站 token 送去 B 站

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

tools/gitea.sh

@@ -46,22 +46,45 @@ case "$cmd" in
     exit 0 ;;
 esac
 
-tea_token() { # 取 tea CLI 設定檔的 token（優先 default: true 的登入，否則第一個）
+tea_token() { # 取 tea CLI 設定檔的 token。$1=host-only 時，只回傳主機相符的登入
+  # 優先序：url 與 $GITEA_HOST 同主機的登入 > default: true 的登入 > 第一個登入。
+  # 主機比對必須排最前面：tea 可以同時登入多個站台，只看 default 會把 A 站的
+  # token 送去 B 站——那是憑證外洩，不是單純的取錯值。
   cfg="${HOME}/.config/tea/config.yml"
   [ -f "$cfg" ] || return 1
-  t=$(awk '
+  only_host="${1:-}"
-    /^ *- /             { if (def && tok != "") { print tok; found=1; exit } tok=""; def=0 }
+  want=$(printf '%s' "${GITEA_HOST:-}" | sed 's#^https\{0,1\}://##; s#/.*##')
-    /^ *token: */       { line=$0; sub(/^ *token: */,"",line); gsub(/"/,"",line)
+  t=$(awk -v want="$want" -v only_host="$only_host" '
-                          tok=line; if (first=="") first=line }
+    function flush() {
+      if (tok == "") return
+      if (first == "") first = tok
+      if (want != "" && host == want) { match_tok = tok }
+      if (def) def_tok = tok
+    }
+    /^ *- / { flush(); tok=""; host=""; def=0 }
+    /^ *token: */       { line=$0; sub(/^ *token: */,"",line); gsub(/"/,"",line); tok=line }
+    /^ *url: */         { line=$0; sub(/^ *url: */,"",line); gsub(/"/,"",line)
+                          sub(/^https?:\/\//,"",line); sub(/\/.*$/,"",line); host=line }
     /^ *default: *true/ { def=1 }
-    END { if (!found) { if (def && tok != "") print tok; else print first } }
+    END {
+      flush()
+      if (match_tok != "") { print match_tok; exit }
+      if (only_host == "host-only") exit
+      if (def_tok != "") print def_tok
+      else print first
+    }
   ' "$cfg")
   [ -n "$t" ] && printf '%s\n' "$t"
 }
 
 : "${GITEA_HOST:?GITEA_HOST is required}"
 TEA_TOKEN=$(tea_token 2>/dev/null || true)
-if [ -z "${GITEA_TOKEN:-}" ]; then
+TEA_HOST_TOKEN=$(tea_token host-only 2>/dev/null || true)
+if [ -n "$TEA_HOST_TOKEN" ]; then
+  # tea 有這個主機的專用登入就優先用它。$GITEA_TOKEN 是通用變數，未必屬於
+  # 這次要連的主機；把它送去別的站等於憑證外洩，比取錯值嚴重得多。
+  GITEA_TOKEN="$TEA_HOST_TOKEN"
+elif [ -z "${GITEA_TOKEN:-}" ]; then
   if [ -n "$TEA_TOKEN" ]; then GITEA_TOKEN="$TEA_TOKEN"; else
     : "${GITEA_TOKEN:?GITEA_TOKEN is required}"
   fi