annotate http/src/luan/modules/http/Http.luan @ 583:1368ca798ccc

add Http.uncache_site
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 31 Jul 2015 19:19:42 -0600
parents 1e69d9c21461
children 24b05963ba62
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 java()
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2 local Luan = require "luan:Luan"
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3 local error = Luan.error
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4 local ipairs = Luan.ipairs or error()
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5 local pairs = Luan.pairs or error()
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6 local set_metatable = Luan.set_metatable or error()
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7 local Io = require "luan:Io"
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8 local Html = require "luan:Html"
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9 local url_encode = Html.url_encode or error()
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10 local Table = require "luan:Table"
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11 local clear = Table.clear or error()
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12 local Package = require "luan:Package"
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13 local String = require "luan:String"
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14 local matches = String.matches or error()
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15 local HttpServicer = require "java:luan.modules.http.HttpServicer"
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16 local IoLuan = require "java:luan.modules.IoLuan"
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17
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18 local M = {}
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19
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20 local singular_metatable = {}
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21
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22 function singular_metatable.__index(table,key)
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23 local list = table.__plural[key]
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24 return list and list[1]
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25 end
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26
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27 function singular_metatable.__new_index(table,key,value)
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28 table.__plural[key] = value and {value}
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29 end
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30
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31 function singular_metatable.__pairs(table)
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32 local iter = pairs(table.__plural)
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33 return function()
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34 local key, value = iter()
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35 return key, value and value[1]
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36 end
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37 end
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38
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39 local function sent_error()
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40 error "headers are not accessible after you start writing content"
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41 end
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42
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43 local sent_error_metatable = { __index=sent_error, __new_index=sent_error }
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44
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45 function M.sent_headers(headers)
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46 clear(headers)
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47 set_metatable(headers,sent_error_metatable)
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48 end
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49
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50
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51 local function new_common(this)
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52 this = this or {}
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53 this.headers = {}
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54 this.header = {__plural=this.headers}
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55 set_metatable(this.header,singular_metatable)
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56 return this
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57 end
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58
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59
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60 function M.new_request(this)
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61 this = new_common(this)
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62 this.method = "GET" -- default
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63 -- this.path
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64 -- this.protocol
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65 this.scheme = "http" -- default
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66 this.parameters = {}
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67 this.parameter = {__plural=this.parameters}
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68 set_metatable(this.parameter,singular_metatable)
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69 this.cookie = {}
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70
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71 function this.query_string()
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72 local string_uri = Io.uri "string:"
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73 local out = string_uri.text_writer()
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74 local and_char = ""
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75 for name, values in pairs(this.parameters) do
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76 for _, value in ipairs(values) do
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77 out.write( and_char, url_encode(name), "=", url_encode(value) )
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78 and_char = "&"
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79 end
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80 end
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81 out.close()
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82 local s = string_uri.read_text()
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83 return s ~= "" and s or nil
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84 end
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85
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86 function this.url()
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87 local url = this.scheme.."://"..this.header.host..this.path
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88 if this.method ~= "POST" then
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89 local query = this.query_string()
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90 if query ~= nil then
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91 url = url.."?"..query
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92 end
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93 end
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94 return url
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95 end
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96
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97 return this
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98 end
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99
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100 local STATUS = {
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101 OK = 200;
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102 -- add more as needed
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103 }
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104 M.STATUS = STATUS
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105
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106 function M.new_response(this)
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107 this = new_common(this)
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108 this.status = STATUS.OK
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109 if this.java ~= nil then
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110 this.send_redirect = this.java.sendRedirect
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111 this.send_error = this.java.sendError
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112
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113 function this.set_cookie(name,value,is_persistent,domain)
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114 HttpServicer.setCookie(M.request.java,this.java,name,value,is_persistent,domain)
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115 end
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116
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117 function this.remove_cookie(name,domain)
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118 HttpServicer.removeCookie(M.request.java,this.java,name,domain)
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119 end
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120
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121 function this.set()
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122 HttpServicer.setResponse(this,this.java)
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123 M.sent_headers(this.headers)
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124 end
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125
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126 function this.text_writer()
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127 this.set()
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128 return IoLuan.textWriter(this.java.getWriter())
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129 end
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130
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131 function this.binary_writer()
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132 this.set()
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133 return IoLuan.binaryWriter(this.java.getOutputStream())
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134 end
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135
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136 function this.reset()
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137 this.java.reset()
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138 set_metatable(this.headers,nil)
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139 end
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140 end
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141 return this
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142 end
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143
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144 -- request = new_request{} -- filled in by HttpServicer
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145 -- response = new_response{} -- filled in by HttpServicer
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146
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147
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148 M.per_session_pages = {}
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149
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150 function M.per_session(page)
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151 M.per_session_pages[page] = true
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152 end
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153
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154
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155 function M.uncache_site()
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156 for k in pairs(Table.copy(Package.loaded)) do
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157 if matches(k,"site:.*") then
1368ca798ccc add Http.uncache_site
Franklin Schmidt <fschmidt@gmail.com>
parents: 580
diff changeset
158 Package.loaded[k] = nil
1368ca798ccc add Http.uncache_site
Franklin Schmidt <fschmidt@gmail.com>
parents: 580
diff changeset
159 end
1368ca798ccc add Http.uncache_site
Franklin Schmidt <fschmidt@gmail.com>
parents: 580
diff changeset
160 end
1368ca798ccc add Http.uncache_site
Franklin Schmidt <fschmidt@gmail.com>
parents: 580
diff changeset
161 end
1368ca798ccc add Http.uncache_site
Franklin Schmidt <fschmidt@gmail.com>
parents: 580
diff changeset
162
503
92c3d22745b8 make _ENV optional
Franklin Schmidt <fschmidt@gmail.com>
parents: 500
diff changeset
163 return M