add [ff_hh_latestversion]

freifunk-versions.php

@@ -37,12 +37,41 @@ function ff_hh_getmanifest ($basedir) {
     return $manifest;
 }
 
+/* gets latest version from first manifest line */
+function ff_hh_getlatest ($basedir) {
+    // Caching
+    if ( false === ( $sw_ver = get_transient( "ff_hh_latestversion" ) ) ) {
+        $sw_ver = 'unknown';
+        $input  = wp_remote_retrieve_body( wp_remote_get($basedir . 'sysupgrade/manifest') );
+        foreach ( explode("\n", $input) as $line ) {
+            $ret = sscanf($line, '%s %s %s %s', $hw, $sw_ver, $hash, $filename);
+            if ($ret === 4) {
+                // break processing on first matching line
+                $cachetime = FF_HH_CACHETIME * MINUTE_IN_SECONDS;
+                set_transient( "ff_hh_latestversion", $sw_ver, $cachetime );
+                break;
+            }
+        }
+    }
+    return $sw_ver;
+}
+
+if ( ! shortcode_exists( 'ff_hh_latestversion' ) ) {
+    add_shortcode( 'ff_hh_latestversion',    'ff_hh_shortcode_latestversion');
+}
+// Example:
+// [ff_hh_latestversion]
+function ff_hh_shortcode_latestversion( $atts, $content, $name ) {
+    $sw_ver = ff_hh_getlatest(FF_HH_STABLE_BASEDIR);
+    $outstr = "<span class=\"ff $name\">$sw_ver</span>";
+    return $outstr;
+}
 if ( ! shortcode_exists( 'ff_hh_versions' ) ) {
-    add_shortcode( 'ff_hh_versions',    'ff_hh_shortcode_handler');
+    add_shortcode( 'ff_hh_versions',    'ff_hh_shortcode_versions');
 }
 // Example:
 // [ff_hh_versions]
-function ff_hh_shortcode_handler( $atts, $content, $name ) {
+function ff_hh_shortcode_versions( $atts, $content, $name ) {
     $manifest = ff_hh_getmanifest(FF_HH_STABLE_BASEDIR);
 
     $outstr = "<div class=\"ff $name\">";