💋 Sync 2026-10-04 04:16:09

luci-theme-fluent/root/usr/libexec/fluent/online_wallpaper

@@ -0,0 +1,58 @@
+#!/bin/sh
+# author jjm2473, customized for fluent
+
+WEB_PIC_SRC=$(uci -q get fluent.@global[0].login_bg || echo 'bing')
+
+if [ "$WEB_PIC_SRC" != "bing" ]; then
+    exit 0
+fi
+
+CACHE=/var/run/fluent_${WEB_PIC_SRC}.url
+WRLOCK=/var/lock/fluent_${WEB_PIC_SRC}.lock
+
+fetch_pic_url() {
+    local picpath=$(curl -fks --max-time 3 \
+        "https://www.bing.com/HPImageArchive.aspx?format=js&n=1" |
+        jsonfilter -qe '@.images[0].url')
+    [ -n "${picpath}" ] && echo "https://www.bing.com${picpath}"
+}
+
+try_update() {
+    local lock="$WRLOCK"
+    exec 200>$lock
+
+    if flock -n 200 >/dev/null 2>&1; then
+        local picurl=$(fetch_pic_url)
+        if [ -n "$picurl" ]; then
+            echo "${picurl}" | tee "$CACHE"
+        else
+            if [ -s "$CACHE" ]; then
+                cat "$CACHE"
+            else
+                touch "$CACHE"
+            fi
+        fi
+        flock -u 200 >/dev/null 2>&1
+    elif [ -s "$CACHE" ]; then
+        cat "$CACHE"
+    fi
+}
+
+get_url() {
+    if [ -f "$CACHE" ]; then
+        local idle_t=$(($(date '+%s') - $(date -r "$CACHE" '+%s' 2>/dev/null || echo '0')))
+        if [ -s "$CACHE" ]; then
+            if [ $idle_t -le 43200 ]; then
+                cat "$CACHE"
+                return
+            fi
+        else
+            if [ $idle_t -le 120 ]; then
+                return
+            fi
+        fi
+    fi
+    try_update
+}
+
+get_url