update 2026-05-10 09:48:30

luci-lib-iform/luasrc/iform.lua

@@ -0,0 +1,83 @@
+local http = require "luci.http"
+local nixio = require "nixio" 
+local fs   = require "nixio.fs"
+local ltn12 = require "luci.ltn12"
+
+local iform = {} 
+local const_log_end = "XU6J03M6"
+
+function iform.log_end()
+  return const_log_end
+end
+
+function iform.exec_to_log(command)
+  local f = io.popen(command, "r")
+  local log = command
+  if f then
+    local output = f:read('*all')
+    f:close()
+    log = log .. "\n" .. output .. const_log_end
+  else
+    log = log .. " Failed" .. const_log_end
+  end
+  return log
+end
+
+function iform.response_log(logpath)
+  local logfd = io.open(logpath, "r")
+  if logfd == nil then
+    http.write("log not found" .. const_log_end)
+    return
+  end
+
+  local curr = logfd:seek()
+  local size = logfd:seek("end")
+  if size > 8*1024 then
+    logfd:seek("end", -8*1024)
+  else
+    logfd:seek("set", curr)
+  end
+
+  local write_log = function()
+    local buffer = logfd:read(4096)
+    if buffer and #buffer > 0 then
+        return buffer
+    else
+        logfd:close()
+        return nil
+    end
+  end
+
+  http.prepare_content("text/plain;charset=utf-8")
+
+  if logfd then
+    ltn12.pump.all(write_log, http.write)
+  end
+end
+
+function iform.fork_exec(command)
+	local pid = nixio.fork()
+	if pid > 0 then
+		return
+	elseif pid == 0 then
+		-- change to root dir
+		nixio.chdir("/")
+
+		-- patch stdin, out, err to /dev/null
+		local null = nixio.open("/dev/null", "w+")
+		if null then
+			nixio.dup(null, nixio.stderr)
+			nixio.dup(null, nixio.stdout)
+			nixio.dup(null, nixio.stdin)
+			if null:fileno() > 2 then
+				null:close()
+			end
+		end
+
+		-- replace with target command
+		nixio.exec("/bin/sh", "-c", command)
+	end
+end
+
+return iform
+