Mercurial Hosting > luan
annotate core/src/luan/modules/Io.luan @ 753:5e3970ccd86a
improve password handling
author | Franklin Schmidt <fschmidt@gmail.com> |
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date | Fri, 15 Jul 2016 17:35:50 -0600 |
parents | 293c397e8dee |
children | 55983a476a21 |
rev | line source |
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1 java() |
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2 local IoLuan = require "java:luan.modules.IoLuan" |
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3 local System = require "java:java.lang.System" |
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4 |
503 | 5 local M = {} |
6 | |
701 | 7 M.ip = IoLuan.ip |
503 | 8 M.read_console_line = IoLuan.read_console_line |
9 M.schemes = IoLuan.newSchemes() | |
10 M.uri = IoLuan.uri | |
11 M.stdin = IoLuan.defaultStdin.table() | |
12 M.socket_server = IoLuan.socket_server | |
13 M.stdout = IoLuan.textWriter(System.out) | |
14 M.stderr = IoLuan.textWriter(System.err) | |
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15 |
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16 -- used by http and rpc |
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17 M.password = "password" |
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18 |
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19 local Luan = require "luan:Luan.luan" |
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20 local error = Luan.error |
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21 local to_string = Luan.to_string or error() |
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22 local type = Luan.type or error() |
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23 local try = Luan.try or error() |
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24 local ipairs = Luan.ipairs or error() |
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25 local pairs = Luan.pairs or error() |
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26 local values = Luan.values or error() |
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27 local load = Luan.load or error() |
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28 local Table = require "luan:Table.luan" |
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29 local unpack = Table.unpack or error() |
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30 local String = require "luan:String.luan" |
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31 local encode = String.encode or error() |
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32 local matches = String.matches or error() |
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33 |
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34 |
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35 -- do not change |
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36 function M.template_write(...) |
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37 return M.stdout.write(...) |
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38 end |
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39 |
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40 |
503 | 41 function M.print_to(out,...) |
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42 local list = {} |
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43 for v in values(...) do |
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44 list[#list+1] = to_string(v) |
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45 list[#list+1] = '\t' |
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46 end |
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47 if #list > 0 then |
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48 list[#list] = '\n' |
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49 out.write( unpack(list) ) |
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50 end |
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51 end |
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52 |
503 | 53 function M.print(...) |
54 M.print_to(M.stdout,...) | |
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55 end |
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56 |
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57 |
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58 function M.output_to(out,fn,...) |
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59 local old_out = M.stdout |
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60 return try( { |
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61 function(...) |
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62 M.stdout = out |
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63 fn(...) |
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64 end; |
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65 finally = function() |
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66 M.stdout = old_out |
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67 end; |
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68 }, ... ) |
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69 end |
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70 |
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71 local uri = M.uri -- make local |
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72 |
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73 function M.output_of(fn,...) |
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74 local string_uri = uri "string:" |
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75 local out = string_uri.text_writer() |
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76 M.output_to(out,fn,...) |
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77 out.close() |
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78 return string_uri.read_text() |
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79 end |
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80 |
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81 |
422 | 82 -- repr |
83 | |
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84 local function do_repr(out,obj,strict,done) |
422 | 85 local tp = type(obj) |
86 if tp == "table" then | |
87 if done[obj] == true then | |
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88 strict and error "circular reference" |
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89 out.write "<circular reference>" |
422 | 90 return |
91 end | |
92 done[obj] = true | |
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93 out.write( "{" ) |
422 | 94 local is_first = true |
95 local in_list = {} | |
96 for key, value in ipairs(obj) do | |
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97 if is_first then is_first = false else out.write ", " end |
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98 do_repr(out,value,strict,done) |
422 | 99 in_list[key] = true |
100 end | |
101 for key, value in pairs(obj) do | |
102 if in_list[key] ~= true then | |
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103 if is_first then is_first = false else out.write ", " end |
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104 if type(key) == "string" and matches(key,"^[a-zA-Z_][a-zA-Z_0-9]*$") ~= nil then |
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105 out.write( key ) |
424 | 106 elseif type(key) == "table" then |
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107 out.write( "[<", key, ">]" ) |
422 | 108 else |
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109 out.write "[" |
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110 do_repr(out,key,strict,done) |
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111 out.write "]" |
422 | 112 end |
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113 out.write "=" |
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114 do_repr(out,value,strict,done) |
422 | 115 end |
116 end | |
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117 out.write "}" |
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119 out.write( '"', encode(obj), '"' ) |
422 | 120 elseif tp == "nil" or tp == "boolean" or tp == "number" then |
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121 out.write( obj ) |
422 | 122 else |
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123 strict and error("can't repr type '"..tp.."' of "..obj) |
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124 out.write( "<", obj, ">" ) |
422 | 125 end |
126 end | |
127 | |
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128 function M.repr(obj,strict) |
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129 local string_uri = uri "string:" |
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130 local out = string_uri.text_writer() |
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131 do_repr(out,obj,strict or false,{}) |
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132 out.close() |
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133 return string_uri.read_text() |
422 | 134 end |
135 | |
136 | |
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137 -- useful for SimplyHTML responsiveness |
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138 |
503 | 139 local NO = {} |
140 M.NO = NO | |
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141 |
503 | 142 function M.dont_write_when_no(write_fn) |
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143 return function(...) |
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144 for v in values(...) do |
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145 if v == NO then |
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146 return |
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147 end |
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148 end |
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149 write_fn(...) |
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150 end |
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151 end |
503 | 152 |
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153 |
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154 -- debug |
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155 |
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156 function M.debug(prompt) |
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157 prompt = prompt or "luan_debug> " |
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158 local function console() |
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159 return M.read_console_line(prompt) |
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160 end |
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161 local env = {} |
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162 for line in console do |
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163 try { |
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164 function() |
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165 local fn |
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166 try { |
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167 function() |
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168 fn = load("return "..line,"stdin",env) |
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169 end |
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170 catch = function(e) |
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171 fn = load(line,"stdin",env) |
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172 end |
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173 } |
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174 M.print( fn() ) |
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175 end |
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176 catch = function(e) |
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177 M.print(e) |
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178 end |
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179 } |
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180 end |
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181 end |
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182 |
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183 |
503 | 184 return M |