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annotate http/src/luan/modules/http/Http.luan @ 504:dbdf4b8193a8

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add Http.per_session()
author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 21 May 2015 01:09:35 -0600
parents 92c3d22745b8
children 9218f9cf45d3
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1 java()
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2 local Luan = require "luan:Luan"
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3 local ipairs = Luan.ipairs
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4 local pairs = Luan.pairs
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5 local set_metatable = Luan.set_metatable
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6 local Io = require "luan:Io"
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7 local Html = require "luan:Html"
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8 local url_encode = Html.url_encode
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9 local HttpServicer = require "java:luan.modules.http.HttpServicer"
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10 local IoLuan = require "java:luan.modules.IoLuan"
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12 local M = {}
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13
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14 local singular_metatable = {}
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16 function singular_metatable.__index(table,key)
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17 local list = table.__plural[key]
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18 return list and list[1]
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19 end
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20
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21 function singular_metatable.__new_index(table,key,value)
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22 table.__plural[key] = value and {value}
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23 end
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24
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25 function singular_metatable.__pairs(table)
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26 local iter = pairs(table.__plural)
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27 return function()
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28 local key, value = iter()
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29 return key, value and value[1]
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30 end
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31 end
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34 local function new_common(this)
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35 this = this or {}
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36 this.headers = {}
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37 this.header = {__plural=this.headers}
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38 set_metatable(this.header,singular_metatable)
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39 return this
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40 end
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42
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43 function M.new_request(this)
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44 this = new_common(this)
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45 this.method = "GET" -- default
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46 -- this.path
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47 -- this.protocol
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48 this.scheme = "http" -- default
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49 this.parameters = {}
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50 this.parameter = {__plural=this.parameters}
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51 set_metatable(this.parameter,singular_metatable)
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52 this.cookie = {}
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53
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54 function this.query_string()
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55 local string_uri = Io.uri "string:"
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56 local out = string_uri.text_writer()
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57 local and_char = ""
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58 for name, values in pairs(this.parameters) do
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59 for _, value in ipairs(values) do
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60 out.write( and_char, url_encode(name), "=", url_encode(value) )
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61 and_char = "&"
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62 end
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63 end
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64 out.close()
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65 local s = string_uri.read_text()
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66 return s ~= "" and s or nil
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67 end
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68
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69 function this.url()
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70 local url = this.scheme.."://"..this.header.host..this.path
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71 if this.method ~= "POST" then
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72 local query = this.query_string()
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73 if query ~= nil then
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74 url = url.."?"..query
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75 end
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76 end
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77 return url
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78 end
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79
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80 return this
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81 end
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82
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83 local STATUS = {
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84 OK = 200;
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85 -- add more as needed
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86 }
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87 M.STATUS = STATUS
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89 function M.new_response(this)
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90 this = new_common(this)
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91 this.status = STATUS.OK
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92 if this.java ~= nil then
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93 this.send_redirect = this.java.sendRedirect
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94 this.send_error = this.java.sendError
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95
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96 function this.set_cookie(name,value,is_persistent,domain)
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97 HttpServicer.setCookie(this.java,M.response.java,name,value,is_persistent,domain)
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98 end
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99
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100 function this.remove_cookie(name,domain)
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101 HttpServicer.removeCookie(this.java,M.response.java,name,domain)
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102 end
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103
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104 function this.text_writer()
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105 return IoLuan.textWriter(this.java.getWriter())
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106 end
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107
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108 function this.binary_writer()
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109 return IoLuan.binaryWriter(this.java.getOutputStream())
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110 end
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111 end
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112 return this
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113 end
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114
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115 -- request = new_request{} -- filled in by HttpServicer
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116 -- response = new_response{} -- filled in by HttpServicer
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117
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118
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119 M.per_session_pages = {}
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120
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121 function M.per_session(page)
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122 M.per_session_pages[page] = true
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123 end
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124
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125
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126 return M