modules/luci-mod-rpc/luasrc/controller/rpc.lua

   1 --[[
   2 LuCI - Lua Configuration Interface
   3
   4 Copyright 2008 Steven Barth <steven@midlink.org>
   5 Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
   6
   7 Licensed under the Apache License, Version 2.0 (the "License");
   8 you may not use this file except in compliance with the License.
   9 You may obtain a copy of the License at
  10
  11         http://www.apache.org/licenses/LICENSE-2.0
  12
  13 $Id$
  14 ]]--
  15
  16 local require = require
  17 local pairs = pairs
  18 local print = print
  19 local pcall = pcall
  20 local table = table
  21
  22 module "luci.controller.rpc"
  23
  24 function index()
  25         local function authenticator(validator, accs)
  26                 local auth = luci.http.formvalue("auth", true)
  27                 if auth then -- if authentication token was given
  28                         local sdat = (luci.util.ubus("session", "get", { ubus_rpc_session = auth }) or { }).values
  29                         if sdat then -- if given token is valid
  30                                 if sdat.user and luci.util.contains(accs, sdat.user) then
  31                                         return sdat.user, auth
  32                                 end
  33                         end
  34                 end
  35                 luci.http.status(403, "Forbidden")
  36         end
  37
  38         local rpc = node("rpc")
  39         rpc.sysauth = "root"
  40         rpc.sysauth_authenticator = authenticator
  41         rpc.notemplate = true
  42
  43         entry({"rpc", "uci"}, call("rpc_uci"))
  44         entry({"rpc", "fs"}, call("rpc_fs"))
  45         entry({"rpc", "sys"}, call("rpc_sys"))
  46         entry({"rpc", "ipkg"}, call("rpc_ipkg"))
  47         entry({"rpc", "auth"}, call("rpc_auth")).sysauth = false
  48 end
  49
  50 function rpc_auth()
  51         local jsonrpc = require "luci.jsonrpc"
  52         local http    = require "luci.http"
  53         local sys     = require "luci.sys"
  54         local ltn12   = require "luci.ltn12"
  55         local util    = require "luci.util"
  56
  57         local loginstat
  58
  59         local server = {}
  60         server.challenge = function(user, pass)
  61                 local sid, token, secret
  62
  63                 if sys.user.checkpasswd(user, pass) then
  64                         local sdat = util.ubus("session", "create", { timeout = luci.config.sauth.sessiontime })
  65                         if sdat then
  66                                 sid = sdat.ubus_rpc_session
  67                                 token = sys.uniqueid(16)
  68                                 secret = sys.uniqueid(16)
  69
  70                                 http.header("Set-Cookie", "sysauth="..sid.."; path=/")
  71                                 util.ubus("session", "set", {
  72                                         ubus_rpc_session = sid,
  73                                         values = {
  74                                                 user = user,
  75                                                 token = token,
  76                                                 secret = secret
  77                                         }
  78                                 })
  79                         end
  80                 end
  81
  82                 return sid and {sid=sid, token=token, secret=secret}
  83         end
  84
  85         server.login = function(...)
  86                 local challenge = server.challenge(...)
  87                 return challenge and challenge.sid
  88         end
  89
  90         http.prepare_content("application/json")
  91         ltn12.pump.all(jsonrpc.handle(server, http.source()), http.write)
  92 end
  93
  94 function rpc_uci()
  95         if not pcall(require, "luci.model.uci") then
  96                 luci.http.status(404, "Not Found")
  97                 return nil
  98         end
  99         local uci     = require "luci.jsonrpcbind.uci"
 100         local jsonrpc = require "luci.jsonrpc"
 101         local http    = require "luci.http"
 102         local ltn12   = require "luci.ltn12"
 103
 104         http.prepare_content("application/json")
 105         ltn12.pump.all(jsonrpc.handle(uci, http.source()), http.write)
 106 end
 107
 108 function rpc_fs()
 109         local util    = require "luci.util"
 110         local io      = require "io"
 111         local fs2     = util.clone(require "nixio.fs")
 112         local jsonrpc = require "luci.jsonrpc"
 113         local http    = require "luci.http"
 114         local ltn12   = require "luci.ltn12"
 115
 116         function fs2.readfile(filename)
 117                 local stat, mime = pcall(require, "mime")
 118                 if not stat then
 119                         error("Base64 support not available. Please install LuaSocket.")
 120                 end
 121
 122                 local fp = io.open(filename)
 123                 if not fp then
 124                         return nil
 125                 end
 126
 127                 local output = {}
 128                 local sink = ltn12.sink.table(output)
 129                 local source = ltn12.source.chain(ltn12.source.file(fp), mime.encode("base64"))
 130                 return ltn12.pump.all(source, sink) and table.concat(output)
 131         end
 132
 133         function fs2.writefile(filename, data)
 134                 local stat, mime = pcall(require, "mime")
 135                 if not stat then
 136                         error("Base64 support not available. Please install LuaSocket.")
 137                 end
 138
 139                 local  file = io.open(filename, "w")
 140                 local  sink = file and ltn12.sink.chain(mime.decode("base64"), ltn12.sink.file(file))
 141                 return sink and ltn12.pump.all(ltn12.source.string(data), sink) or false
 142         end
 143
 144         http.prepare_content("application/json")
 145         ltn12.pump.all(jsonrpc.handle(fs2, http.source()), http.write)
 146 end
 147
 148 function rpc_sys()
 149         local sys     = require "luci.sys"
 150         local jsonrpc = require "luci.jsonrpc"
 151         local http    = require "luci.http"
 152         local ltn12   = require "luci.ltn12"
 153
 154         http.prepare_content("application/json")
 155         ltn12.pump.all(jsonrpc.handle(sys, http.source()), http.write)
 156 end
 157
 158 function rpc_ipkg()
 159         if not pcall(require, "luci.model.ipkg") then
 160                 luci.http.status(404, "Not Found")
 161                 return nil
 162         end
 163         local ipkg    = require "luci.model.ipkg"
 164         local jsonrpc = require "luci.jsonrpc"
 165         local http    = require "luci.http"
 166         local ltn12   = require "luci.ltn12"
 167
 168         http.prepare_content("application/json")
 169         ltn12.pump.all(jsonrpc.handle(ipkg, http.source()), http.write)
 170 end