modules/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
  28                         local sdat = luci.sauth.read(auth)
  29                         user = loadstring(sdat)().user
  30                         if user and luci.util.contains(accs, user) then
  31                                 return user, auth
  32                         end
  33                 end
  34                 luci.http.status(403, "Forbidden")
  35         end
  36
  37         local rpc = node("rpc")
  38         rpc.sysauth = "root"
  39         rpc.sysauth_authenticator = authenticator
  40         rpc.notemplate = true
  41
  42         entry({"rpc", "uci"}, call("rpc_uci"))
  43         entry({"rpc", "fs"}, call("rpc_fs"))
  44         entry({"rpc", "sys"}, call("rpc_sys"))
  45         entry({"rpc", "ipkg"}, call("rpc_ipkg"))
  46         entry({"rpc", "auth"}, call("rpc_auth")).sysauth = false
  47 end
  48
  49 function rpc_auth()
  50         local jsonrpc = require "luci.jsonrpc"
  51         local sauth   = require "luci.sauth"
  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                         sid = sys.uniqueid(16)
  65                         token = sys.uniqueid(16)
  66                         secret = sys.uniqueid(16)
  67
  68                         http.header("Set-Cookie", "sysauth=" .. sid.."; path=/")
  69                         sauth.write(sid, util.get_bytecode({
  70                                 user=user,
  71                                 token=token,
  72                                 secret=secret
  73                         }))
  74                 end
  75
  76                 return sid and {sid=sid, token=token, secret=secret}
  77         end
  78
  79         server.login = function(...)
  80                 local challenge = server.challenge(...)
  81                 return challenge and challenge.sid
  82         end
  83
  84         http.prepare_content("application/json")
  85         ltn12.pump.all(jsonrpc.handle(server, http.source()), http.write)
  86 end
  87
  88 function rpc_uci()
  89         if not pcall(require, "luci.model.uci") then
  90                 luci.http.status(404, "Not Found")
  91                 return nil
  92         end
  93         local uci     = require "luci.jsonrpcbind.uci"
  94         local jsonrpc = require "luci.jsonrpc"
  95         local http    = require "luci.http"
  96         local ltn12   = require "luci.ltn12"
  97
  98         http.prepare_content("application/json")
  99         ltn12.pump.all(jsonrpc.handle(uci, http.source()), http.write)
 100 end
 101
 102 function rpc_fs()
 103         local util    = require "luci.util"
 104         local io      = require "io"
 105         local fs2     = util.clone(require "nixio.fs")
 106         local jsonrpc = require "luci.jsonrpc"
 107         local http    = require "luci.http"
 108         local ltn12   = require "luci.ltn12"
 109
 110         function fs2.readfile(filename)
 111                 local stat, mime = pcall(require, "mime")
 112                 if not stat then
 113                         error("Base64 support not available. Please install LuaSocket.")
 114                 end
 115
 116                 local fp = io.open(filename)
 117                 if not fp then
 118                         return nil
 119                 end
 120
 121                 local output = {}
 122                 local sink = ltn12.sink.table(output)
 123                 local source = ltn12.source.chain(ltn12.source.file(fp), mime.encode("base64"))
 124                 return ltn12.pump.all(source, sink) and table.concat(output)
 125         end
 126
 127         function fs2.writefile(filename, data)
 128                 local stat, mime = pcall(require, "mime")
 129                 if not stat then
 130                         error("Base64 support not available. Please install LuaSocket.")
 131                 end
 132
 133                 local  file = io.open(filename, "w")
 134                 local  sink = file and ltn12.sink.chain(mime.decode("base64"), ltn12.sink.file(file))
 135                 return sink and ltn12.pump.all(ltn12.source.string(data), sink) or false
 136         end
 137
 138         http.prepare_content("application/json")
 139         ltn12.pump.all(jsonrpc.handle(fs2, http.source()), http.write)
 140 end
 141
 142 function rpc_sys()
 143         local sys     = require "luci.sys"
 144         local jsonrpc = require "luci.jsonrpc"
 145         local http    = require "luci.http"
 146         local ltn12   = require "luci.ltn12"
 147
 148         http.prepare_content("application/json")
 149         ltn12.pump.all(jsonrpc.handle(sys, http.source()), http.write)
 150 end
 151
 152 function rpc_ipkg()
 153         if not pcall(require, "luci.model.ipkg") then
 154                 luci.http.status(404, "Not Found")
 155                 return nil
 156         end
 157         local ipkg    = require "luci.model.ipkg"
 158         local jsonrpc = require "luci.jsonrpc"
 159         local http    = require "luci.http"
 160         local ltn12   = require "luci.ltn12"
 161
 162         http.prepare_content("application/json")
 163         ltn12.pump.all(jsonrpc.handle(ipkg, http.source()), http.write)
 164 end