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annotate src/ftp.lua @ 0:4b915342e2a8

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LuaSocket 2.0.2 + CMake build description.
author Eric Wing <ewing . public |-at-| gmail . com>
date Tue, 26 Aug 2008 18:40:01 -0700
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4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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1 -----------------------------------------------------------------------------
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2 -- FTP support for the Lua language
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3 -- LuaSocket toolkit.
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4 -- Author: Diego Nehab
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5 -- RCS ID: $Id: ftp.lua,v 1.45 2007/07/11 19:25:47 diego Exp $
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6 -----------------------------------------------------------------------------
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7
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8 -----------------------------------------------------------------------------
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9 -- Declare module and import dependencies
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10 -----------------------------------------------------------------------------
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11 local base = _G
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12 local table = require("table")
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13 local string = require("string")
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14 local math = require("math")
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15 local socket = require("socket")
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16 local url = require("socket.url")
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17 local tp = require("socket.tp")
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18 local ltn12 = require("ltn12")
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19 module("socket.ftp")
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20
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21 -----------------------------------------------------------------------------
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22 -- Program constants
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23 -----------------------------------------------------------------------------
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24 -- timeout in seconds before the program gives up on a connection
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25 TIMEOUT = 60
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26 -- default port for ftp service
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27 PORT = 21
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28 -- this is the default anonymous password. used when no password is
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29 -- provided in url. should be changed to your e-mail.
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30 USER = "ftp"
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31 PASSWORD = "anonymous@anonymous.org"
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32
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33 -----------------------------------------------------------------------------
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34 -- Low level FTP API
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35 -----------------------------------------------------------------------------
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36 local metat = { __index = {} }
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37
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38 function open(server, port, create)
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39 local tp = socket.try(tp.connect(server, port or PORT, TIMEOUT, create))
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40 local f = base.setmetatable({ tp = tp }, metat)
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41 -- make sure everything gets closed in an exception
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42 f.try = socket.newtry(function() f:close() end)
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43 return f
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44 end
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45
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46 function metat.__index:portconnect()
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47 self.try(self.server:settimeout(TIMEOUT))
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48 self.data = self.try(self.server:accept())
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49 self.try(self.data:settimeout(TIMEOUT))
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50 end
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51
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52 function metat.__index:pasvconnect()
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53 self.data = self.try(socket.tcp())
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54 self.try(self.data:settimeout(TIMEOUT))
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55 self.try(self.data:connect(self.pasvt.ip, self.pasvt.port))
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56 end
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57
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58 function metat.__index:login(user, password)
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59 self.try(self.tp:command("user", user or USER))
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60 local code, reply = self.try(self.tp:check{"2..", 331})
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61 if code == 331 then
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62 self.try(self.tp:command("pass", password or PASSWORD))
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63 self.try(self.tp:check("2.."))
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64 end
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65 return 1
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66 end
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67
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68 function metat.__index:pasv()
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69 self.try(self.tp:command("pasv"))
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70 local code, reply = self.try(self.tp:check("2.."))
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71 local pattern = "(%d+)%D(%d+)%D(%d+)%D(%d+)%D(%d+)%D(%d+)"
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72 local a, b, c, d, p1, p2 = socket.skip(2, string.find(reply, pattern))
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73 self.try(a and b and c and d and p1 and p2, reply)
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74 self.pasvt = {
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75 ip = string.format("%d.%d.%d.%d", a, b, c, d),
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76 port = p1*256 + p2
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77 }
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78 if self.server then
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79 self.server:close()
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80 self.server = nil
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81 end
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82 return self.pasvt.ip, self.pasvt.port
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83 end
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84
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85 function metat.__index:port(ip, port)
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86 self.pasvt = nil
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87 if not ip then
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88 ip, port = self.try(self.tp:getcontrol():getsockname())
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89 self.server = self.try(socket.bind(ip, 0))
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90 ip, port = self.try(self.server:getsockname())
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91 self.try(self.server:settimeout(TIMEOUT))
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92 end
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93 local pl = math.mod(port, 256)
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94 local ph = (port - pl)/256
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95 local arg = string.gsub(string.format("%s,%d,%d", ip, ph, pl), "%.", ",")
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96 self.try(self.tp:command("port", arg))
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97 self.try(self.tp:check("2.."))
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98 return 1
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99 end
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100
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101 function metat.__index:send(sendt)
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102 self.try(self.pasvt or self.server, "need port or pasv first")
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103 -- if there is a pasvt table, we already sent a PASV command
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104 -- we just get the data connection into self.data
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105 if self.pasvt then self:pasvconnect() end
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106 -- get the transfer argument and command
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107 local argument = sendt.argument or
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108 url.unescape(string.gsub(sendt.path or "", "^[/\\]", ""))
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109 if argument == "" then argument = nil end
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110 local command = sendt.command or "stor"
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111 -- send the transfer command and check the reply
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112 self.try(self.tp:command(command, argument))
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113 local code, reply = self.try(self.tp:check{"2..", "1.."})
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114 -- if there is not a a pasvt table, then there is a server
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115 -- and we already sent a PORT command
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116 if not self.pasvt then self:portconnect() end
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117 -- get the sink, source and step for the transfer
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118 local step = sendt.step or ltn12.pump.step
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119 local readt = {self.tp.c}
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120 local checkstep = function(src, snk)
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121 -- check status in control connection while downloading
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122 local readyt = socket.select(readt, nil, 0)
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123 if readyt[tp] then code = self.try(self.tp:check("2..")) end
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124 return step(src, snk)
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125 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
126 local sink = socket.sink("close-when-done", self.data)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
127 -- transfer all data and check error
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
128 self.try(ltn12.pump.all(sendt.source, sink, checkstep))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
129 if string.find(code, "1..") then self.try(self.tp:check("2..")) end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
130 -- done with data connection
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
131 self.data:close()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
132 -- find out how many bytes were sent
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
133 local sent = socket.skip(1, self.data:getstats())
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
134 self.data = nil
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
135 return sent
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
136 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
137
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
138 function metat.__index:receive(recvt)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
139 self.try(self.pasvt or self.server, "need port or pasv first")
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
140 if self.pasvt then self:pasvconnect() end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
141 local argument = recvt.argument or
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
142 url.unescape(string.gsub(recvt.path or "", "^[/\\]", ""))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
143 if argument == "" then argument = nil end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
144 local command = recvt.command or "retr"
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
145 self.try(self.tp:command(command, argument))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
146 local code = self.try(self.tp:check{"1..", "2.."})
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
147 if not self.pasvt then self:portconnect() end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
148 local source = socket.source("until-closed", self.data)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
149 local step = recvt.step or ltn12.pump.step
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
150 self.try(ltn12.pump.all(source, recvt.sink, step))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
151 if string.find(code, "1..") then self.try(self.tp:check("2..")) end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
152 self.data:close()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
153 self.data = nil
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
154 return 1
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
155 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
156
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
157 function metat.__index:cwd(dir)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
158 self.try(self.tp:command("cwd", dir))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
159 self.try(self.tp:check(250))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
160 return 1
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
161 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
162
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
163 function metat.__index:type(type)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
164 self.try(self.tp:command("type", type))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
165 self.try(self.tp:check(200))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
166 return 1
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
167 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
168
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
169 function metat.__index:greet()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
170 local code = self.try(self.tp:check{"1..", "2.."})
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
171 if string.find(code, "1..") then self.try(self.tp:check("2..")) end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
172 return 1
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
173 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
174
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
175 function metat.__index:quit()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
176 self.try(self.tp:command("quit"))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
177 self.try(self.tp:check("2.."))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
178 return 1
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
179 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
180
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
181 function metat.__index:close()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
182 if self.data then self.data:close() end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
183 if self.server then self.server:close() end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
184 return self.tp:close()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
185 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
186
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
187 -----------------------------------------------------------------------------
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
188 -- High level FTP API
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
189 -----------------------------------------------------------------------------
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
190 local function override(t)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
191 if t.url then
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
192 local u = url.parse(t.url)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
193 for i,v in base.pairs(t) do
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
194 u[i] = v
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
195 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
196 return u
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
197 else return t end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
198 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
199
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
200 local function tput(putt)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
201 putt = override(putt)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
202 socket.try(putt.host, "missing hostname")
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
203 local f = open(putt.host, putt.port, putt.create)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
204 f:greet()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
205 f:login(putt.user, putt.password)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
206 if putt.type then f:type(putt.type) end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
207 f:pasv()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
208 local sent = f:send(putt)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
209 f:quit()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
210 f:close()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
211 return sent
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
212 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
213
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
214 local default = {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
215 path = "/",
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
216 scheme = "ftp"
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
217 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
218
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
219 local function parse(u)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
220 local t = socket.try(url.parse(u, default))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
221 socket.try(t.scheme == "ftp", "wrong scheme '" .. t.scheme .. "'")
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
222 socket.try(t.host, "missing hostname")
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
223 local pat = "^type=(.)$"
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
224 if t.params then
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
225 t.type = socket.skip(2, string.find(t.params, pat))
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
226 socket.try(t.type == "a" or t.type == "i",
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
227 "invalid type '" .. t.type .. "'")
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
228 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
229 return t
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
230 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
231
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
232 local function sput(u, body)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
233 local putt = parse(u)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
234 putt.source = ltn12.source.string(body)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
235 return tput(putt)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
236 end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
237
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
238 put = socket.protect(function(putt, body)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
239 if base.type(putt) == "string" then return sput(putt, body)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
240 else return tput(putt) end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
241 end)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
242
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
243 local function tget(gett)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
244 gett = override(gett)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
245 socket.try(gett.host, "missing hostname")
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
246 local f = open(gett.host, gett.port, gett.create)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
247 f:greet()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
248 f:login(gett.user, gett.password)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
249 if gett.type then f:type(gett.type) end
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
250 f:pasv()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
251 f:receive(gett)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
252 f:quit()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
253 return f:close()
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
254 end
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255
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256 local function sget(u)
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257 local gett = parse(u)
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258 local t = {}
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259 gett.sink = ltn12.sink.table(t)
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260 tget(gett)
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261 return table.concat(t)
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262 end
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263
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264 command = socket.protect(function(cmdt)
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265 cmdt = override(cmdt)
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266 socket.try(cmdt.host, "missing hostname")
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267 socket.try(cmdt.command, "missing command")
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268 local f = open(cmdt.host, cmdt.port, cmdt.create)
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269 f:greet()
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270 f:login(cmdt.user, cmdt.password)
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271 f.try(f.tp:command(cmdt.command, cmdt.argument))
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272 if cmdt.check then f.try(f.tp:check(cmdt.check)) end
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273 f:quit()
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274 return f:close()
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275 end)
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276
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277 get = socket.protect(function(gett)
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278 if base.type(gett) == "string" then return sget(gett)
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279 else return tget(gett) end
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280 end)
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281