Fixes

func_ruby/main.rb

@@ -327,11 +327,20 @@ def hestia_change_sys_config_value(key, value)
   config_file = "/usr/local/hestia/conf/hestia.conf"
 
   if File.exist?(config_file)
-    File.open(config_file, File::RDWR) do |f|
+    # First pass: read entire file to check if key exists and get all lines
+    content = nil
+
+    File.open(config_file, "r") do |f|
+      content = f.read
+    end
+
+    if content
+      lines = content.split("\n")
+
       # Check if key exists in the configuration file
       existing_line_index = -1
 
-      f.each_with_index do |line, idx|
+      lines.each_with_index do |line, idx|
         line_stripped = line.strip
         # Skip comment lines
         next if line_stripped.start_with?("#")
@@ -355,32 +364,33 @@ def hestia_change_sys_config_value(key, value)
         # Use temporary file for safety and atomic replacement
         temp_file = "#{config_file}.tmp"
 
-        File.open(config_file, "r") do |input_f|
-          lines = []
+        # Second pass: rebuild the content with updated value
+        new_lines = []
 
-          input_f.each do |line|
-            line_stripped = line.strip
-            # Skip comment lines
-            next if line_stripped.start_with?("#")
-            next if line_stripped.empty?
+        lines.each do |line|
+          line_stripped = line.strip
+          # Skip comment lines
+          next if line_stripped.start_with?("#")
+          next if line_stripped.empty?
 
-            # Match and replace the key-value pair
-            if line.match(/^\s*#{Regexp.escape(key)}='[^']*'/)
-              lines << "#{key}='#{value}'"
-            else
-              lines << line
-            end
+          # Match and replace the key-value pair
+          if line.match(/^\s*#{Regexp.escape(key)}='[^']*'/)
+            new_lines << "#{key}='#{value}'"
+          else
+            new_lines << line
           end
-
-          File.open(temp_file, "w") do |output_f|
-            lines.each { |l| output_f.puts(l) }
-          end
-
-          # Atomic file replacement
-          File.rename(temp_file, config_file)
-          OK
         end
+
+        File.open(temp_file, "w") do |output_f|
+          new_lines.each { |l| output_f.puts(l) }
+        end
+
+        # Atomic file replacement
+        File.rename(temp_file, config_file)
+        OK
       end
+    else
+      OK
     end
   else
     check_result error_code: E_NOTEXIST, error_message: "Configuration file #{config_file} does not exist"