openwrt luci 调试功能

电玩女神 2022-05-11 14:24 500阅读 0赞

1.多用户权限说明

在dispatcher.lua 添加函数

function remove_idx(  tbl, index )
    
       -- initiate variables for save procedure
       local tables,lookup = { tbl },{ [tbl] = 1 }
    
       for idx,t in ipairs( tables ) do
          local thandled = {}
    
          for i,v in ipairs( t ) do
         thandled[i] = true
         local stype = type( v )
         -- only handle value
         if stype == "table" then
            if not lookup[v] then
               table.insert( tables, v )
               lookup[v] = #tables
            end
         else
            if i == index then
               t[i] = nil
               return
            end
         end
          end
    
          for i,v in pairs( t ) do
         -- escape handled values
         if (not thandled[i]) then
    
            local flag = 0
            local stype = type( i )
            -- handle index
            if stype == "table" then
               if not lookup[i] then
              table.insert( tables,i )
              lookup[i] = #tables
               end
            else
               flag = 1
               if i == index then
              t[i] = nil
              return
               end
            end
    
            if flag == 1 then
               stype = type( v )
               -- handle value
               if stype == "table" then
              if not lookup[v] then
                 table.insert( tables,v )
                 lookup[v] = #tables
              end
               else
              if i == index then
                 t[i] = nil
                 return
              end
               end
            end
    
         end
          end
       end
    end

在dispatch()函数中下面代码后面

if c and c.index then
        local tpl = require "luci.template"
    
        if util.copcall(tpl.render, "indexer", {}) then
            return true
        end
     end

插入如下代码

if ctx.authuser == "user" then
                remove_idx(ctx.tree, "packages")
                remove_idx(ctx.tree, "leds")
        end

处理访问权限可以仿照下面的权限功能

--- auth check
    			local req_path=ctx.path
    			if #req_path == 3 then
    				logx.print_r(req_path)
    				logx.print_r(req_path[1])
    				logx.print_r(req_path[2])
    				if req_path[1] == 'admin' and req_path[2] == 'v6plus' then
    					for _, page in ipairs(acl) do
    						if req_path[3] == page then
    							http.status(403, "Forbidden")
    							return 
    						end 
    					end
    				end 
    			end

luci 开发调试模块，在/usr/lib/lua/luci 中添加log.lua文件，代码如下

local M = {}
     
    local tconcat = table.concat  
    local tinsert = table.insert  
    local srep = string.rep
     
    local function local_print(str)  
        local dbg = io.open("/tmp/luci.output", "a+")
        local str = str or ""
        if dbg then
            dbg:write(str..'\n')
            dbg:close()
        end
    end
     
    function M.print(...)  
        local dbg = io.open("/tmp/luci.output", "a+")
        if dbg then
            dbg:write(os.date("[%H:%M:%S]: "))
            for _, o in ipairs({...}) do
                dbg:write(tostring(o)..'  ')
            end
            dbg:write("\n")
            dbg:close()
        end
    end
     
    function M.print_r(data, depth)  
        local depth = depth or 3
        local cstring = ""; 
        local top_flag = true
     
        local function table_len(t)
        local i = 0
        for k, v in pairs(t) do
            i = i + 1
        end
        return i
        end
     
        local function tableprint(data,cstring, local_depth)
            if data == nil then 
                local_print("core.print data is nil");
            end 
     
            local cs = cstring .. "    ";
        if top_flag then
                local_print(cstring .."{");
            top_flag = false
        end
            if(type(data)=="table") then
                for k, v in pairs(data) do
            if type(v) ~= "table" then
                if type(v) == "string" then
                            local_print(cs..tostring(k).." = ".."'"..tostring(v).."'");
                else
                            local_print(cs..tostring(k).." = "..tostring(v));
                end
            elseif table_len(v) == 0 then
                local_print(cs..tostring(k).." = ".."{}")
            elseif local_depth < depth then
                        local_print(cs..tostring(k).." = {");
                          tableprint(v,cs,local_depth+1);
            else
                local_print(cs..tostring(k).." = ".."{*}")
            end
                end 
            else
                local_print(cs..tostring(data));
            end 
            local_print(cstring .."}");
        end 
     
        tableprint(data,cstring,0);
    end
     
    return M

代码调用功能

local logx = require "luci.log" 
    logx.print("hello world")
    logx.print({"hello", "world")

查看调试内容

tail -f /tmp/luci.output

调试代码上传到相应位置后需要做的操作

删除/tmp/luci-indexcache  与  /tmp/luci-modulecache

rm /tmp/luci-*

刷新页面即完成相应功能