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 -- if authentication token was given
  28                         local sdat = luci.sauth.read(auth)
  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 sauth   = require "luci.sauth"
  53         local http    = require "luci.http"
  54         local sys     = require "luci.sys"
  55         local ltn12   = require "luci.ltn12"
  56         local util    = require "luci.util"
  57
  58         local loginstat
  59
  60         local server = {}
  61         server.challenge = function(user, pass)
  62                 local sid, token, secret
  63
  64                 if sys.user.checkpasswd(user, pass) then
  65                         sid = sys.uniqueid(16)
  66                         token = sys.uniqueid(16)
  67                         secret = sys.uniqueid(16)
  68
  69                         http.header("Set-Cookie", "sysauth=" .. sid.."; path=/")
  70                         sauth.reap()
  71                         sauth.write(sid, {
  72                                 user=user,
  73                                 token=token,
  74                                 secret=secret
  75                         })
  76                 end
  77
  78                 return sid and {sid=sid, token=token, secret=secret}
  79         end
  80
  81         server.login = function(...)
  82                 local challenge = server.challenge(...)
  83                 return challenge and challenge.sid
  84         end
  85
  86         http.prepare_content("application/json")
  87         ltn12.pump.all(jsonrpc.handle(server, http.source()), http.write)
  88 end
  89
  90 function rpc_uci()
  91         if not pcall(require, "luci.model.uci") then
  92                 luci.http.status(404, "Not Found")
  93                 return nil
  94         end
  95         local uci     = require "luci.jsonrpcbind.uci"
  96         local jsonrpc = require "luci.jsonrpc"
  97         local http    = require "luci.http"
  98         local ltn12   = require "luci.ltn12"
  99
 100         http.prepare_content("application/json")
 101         ltn12.pump.all(jsonrpc.handle(uci, http.source()), http.write)
 102 end
 103
 104 function rpc_fs()
 105         local util    = require "luci.util"
 106         local io      = require "io"
 107         local fs2     = util.clone(require "nixio.fs")
 108         local jsonrpc = require "luci.jsonrpc"
 109         local http    = require "luci.http"
 110         local ltn12   = require "luci.ltn12"
 111
 112         function fs2.readfile(filename)
 113                 local stat, mime = pcall(require, "mime")
 114                 if not stat then
 115                         error("Base64 support not available. Please install LuaSocket.")
 116                 end
 117
 118                 local fp = io.open(filename)
 119                 if not fp then
 120                         return nil
 121                 end
 122
 123                 local output = {}
 124                 local sink = ltn12.sink.table(output)
 125                 local source = ltn12.source.chain(ltn12.source.file(fp), mime.encode("base64"))
 126                 return ltn12.pump.all(source, sink) and table.concat(output)
 127         end
 128
 129         function fs2.writefile(filename, data)
 130                 local stat, mime = pcall(require, "mime")
 131                 if not stat then
 132                         error("Base64 support not available. Please install LuaSocket.")
 133                 end
 134
 135                 local  file = io.open(filename, "w")
 136                 local  sink = file and ltn12.sink.chain(mime.decode("base64"), ltn12.sink.file(file))
 137                 return sink and ltn12.pump.all(ltn12.source.string(data), sink) or false
 138         end
 139
 140         http.prepare_content("application/json")
 141         ltn12.pump.all(jsonrpc.handle(fs2, http.source()), http.write)
 142 end
 143
 144 function rpc_sys()
 145         local sys     = require "luci.sys"
 146         local jsonrpc = require "luci.jsonrpc"
 147         local http    = require "luci.http"
 148         local ltn12   = require "luci.ltn12"
 149
 150         http.prepare_content("application/json")
 151         ltn12.pump.all(jsonrpc.handle(sys, http.source()), http.write)
 152 end
 153
 154 function rpc_ipkg()
 155         if not pcall(require, "luci.model.ipkg") then
 156                 luci.http.status(404, "Not Found")
 157                 return nil
 158         end
 159         local ipkg    = require "luci.model.ipkg"
 160         local jsonrpc = require "luci.jsonrpc"
 161         local http    = require "luci.http"
 162         local ltn12   = require "luci.ltn12"
 163
 164         http.prepare_content("application/json")
 165         ltn12.pump.all(jsonrpc.handle(ipkg, http.source()), http.write)
 166 end