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util/jsonschema.lua @ 11972:520ce76440ad
net.server_epoll: Prevent loop attempting to send last data after close
If the connection is closed by the peer, any buffered data is given a
last chance to be sent (see f27b9319e0da). If the connection is Really
closed, no attempt to write will occur, instead epoll will raise the
error flag and :onreadable() will be invoked again, where it will try to
:close() again for the same reason, thus looping until the connection
somehow gets destroyed.
By clearing the _connected flag, the second time it passes :onreadable()
it should go directly to :destroy(), breaking the loop.
Thanks Link Mauve for reporting
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 30 Nov 2021 18:19:40 +0100 |
parent | 11460:a8b4e04bc044 |
child | 12132:4ff0d33dfb2b |
rev | line source |
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1 local json = require("util.json") |
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2 local null = json.null; |
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3 |
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4 local json_type_name = json.json_type_name |
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5 |
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6 local schema_t = {} |
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7 |
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8 local json_schema_object = {xml_t = {}} |
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9 |
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10 local type_validators = {} |
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11 |
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12 local function simple_validate(schema, data) |
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13 if schema == "object" and type(data) == "table" then |
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14 return type(data) == "table" and (next(data) == nil or type((next(data, nil))) == "string") |
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15 elseif schema == "array" and type(data) == "table" then |
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16 return type(data) == "table" and (next(data) == nil or type((next(data, nil))) == "number") |
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17 elseif schema == "integer" then |
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18 return math.type(data) == schema |
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19 elseif schema == "null" then |
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20 return data == null |
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21 else |
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22 return type(data) == schema |
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23 end |
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24 end |
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25 |
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26 type_validators.string = function(schema, data) |
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27 |
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28 if type(data) == "string" then |
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29 if schema.maxLength and #data > schema.maxLength then |
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30 return false |
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31 end |
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32 if schema.minLength and #data < schema.minLength then |
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33 return false |
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34 end |
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35 return true |
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36 end |
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37 return false |
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38 end |
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39 |
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40 type_validators.number = function(schema, data) |
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41 if schema.multipleOf and data % schema.multipleOf ~= 0 then |
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42 return false |
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43 end |
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44 |
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45 if schema.maximum and not (data <= schema.maximum) then |
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46 return false |
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47 end |
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48 |
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49 if schema.exclusiveMaximum and not (data < schema.exclusiveMaximum) then |
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50 return false |
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51 end |
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52 |
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53 if schema.minimum and not (data >= schema.minimum) then |
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54 return false |
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55 end |
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56 |
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57 if schema.exclusiveMinimum and not (data > schema.exclusiveMinimum) then |
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58 return false |
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59 end |
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60 |
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61 return true |
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62 end |
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63 |
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64 type_validators.integer = type_validators.number |
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65 |
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66 local function validate(schema, data) |
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67 if type(schema) == "boolean" then |
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68 return schema |
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69 end |
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70 if type(schema) == "string" then |
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71 return simple_validate(schema, data) |
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72 end |
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73 if type(schema) == "table" then |
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74 if schema.allOf then |
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75 for _, sub in ipairs(schema.allOf) do |
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76 if not validate(sub, data) then |
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77 return false |
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78 end |
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79 end |
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80 return true |
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81 end |
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82 |
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83 if schema.oneOf then |
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84 local valid = 0 |
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85 for _, sub in ipairs(schema.oneOf) do |
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86 if validate(sub, data) then |
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87 valid = valid + 1 |
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88 end |
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89 end |
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90 return valid == 1 |
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91 end |
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92 |
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93 if schema.anyOf then |
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94 for _, sub in ipairs(schema.anyOf) do |
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95 if validate(sub, data) then |
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96 return true |
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97 end |
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98 end |
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99 return false |
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100 end |
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101 |
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102 if schema["not"] then |
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103 if validate(schema["not"], data) then |
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104 return false |
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105 end |
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106 end |
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107 |
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108 if schema["if"] then |
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109 if validate(schema["if"], data) then |
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110 if schema["then"] then |
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111 return validate(schema["then"], data) |
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112 end |
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113 else |
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114 if schema["else"] then |
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115 return validate(schema["else"], data) |
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116 end |
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117 end |
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118 end |
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119 |
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120 if schema.const ~= nil and schema.const ~= data then |
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121 return false |
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122 end |
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123 |
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124 if schema["enum"] ~= nil then |
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125 for _, v in ipairs(schema["enum"]) do |
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126 if v == data then |
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127 return true |
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128 end |
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129 end |
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130 return false |
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131 end |
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132 |
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133 if schema.type then |
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134 if not simple_validate(schema.type, data) then |
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135 return false |
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136 end |
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137 |
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138 local validator = type_validators[schema.type] |
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139 if validator then |
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140 return validator(schema, data) |
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141 end |
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142 end |
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143 return true |
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144 end |
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145 end |
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146 |
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147 type_validators.table = function(schema, data) |
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148 if type(data) == "table" then |
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149 |
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150 if schema.maxItems and #data > schema.maxItems then |
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151 return false |
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152 end |
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153 |
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154 if schema.minItems and #data < schema.minItems then |
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155 return false |
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156 end |
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157 |
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158 if schema.required then |
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159 for _, k in ipairs(schema.required) do |
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160 if data[k] == nil then |
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161 return false |
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162 end |
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163 end |
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164 end |
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165 |
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166 if schema.properties then |
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167 local additional = schema.additionalProperties or true |
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168 for k, v in pairs(data) do |
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169 if schema.propertyNames and not validate(schema.propertyNames, k) then |
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170 return false |
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171 end |
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172 local s = schema.properties[k] or additional |
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173 if not validate(s, v) then |
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174 return false |
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175 end |
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176 end |
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177 elseif schema.additionalProperties then |
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178 for k, v in pairs(data) do |
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179 if schema.propertyNames and not validate(schema.propertyNames, k) then |
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180 return false |
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181 end |
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182 if not validate(schema.additionalProperties, v) then |
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183 return false |
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184 end |
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185 end |
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186 end |
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187 |
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188 if schema.uniqueItems then |
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189 |
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190 local values = {} |
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191 for _, v in pairs(data) do |
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192 if values[v] then |
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193 return false |
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194 end |
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195 values[v] = true |
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196 end |
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197 end |
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198 |
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199 local p = 0 |
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200 if schema.prefixItems then |
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201 for i, s in ipairs(schema.prefixItems) do |
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202 if validate(s, data[i]) then |
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203 p = i |
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204 else |
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205 return false |
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206 end |
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207 end |
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208 end |
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209 |
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210 if schema.items then |
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211 for i = p + 1, #data do |
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212 if not validate(schema.items, data[i]) then |
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213 return false |
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214 end |
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215 end |
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216 end |
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217 |
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218 if schema.contains then |
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219 local found = false |
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220 for i = 1, #data do |
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221 if validate(schema.contains, data[i]) then |
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222 found = true |
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223 break |
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224 end |
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225 end |
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226 if not found then |
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227 return false |
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228 end |
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229 end |
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230 |
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231 return true |
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232 end |
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233 return false |
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234 end |
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235 |
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236 type_validators.object = function(schema, data) |
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237 if type(data) == "table" then |
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238 for k in pairs(data) do |
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239 if not (type(k) == "string") then |
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240 return false |
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241 end |
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242 end |
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243 |
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244 return type_validators.table(schema, data) |
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245 end |
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246 return false |
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247 end |
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248 |
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249 type_validators.array = function(schema, data) |
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250 if type(data) == "table" then |
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251 |
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252 for i in pairs(data) do |
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253 if not (type(i) == "number") then |
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254 return false |
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255 end |
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256 end |
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257 |
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258 return type_validators.table(schema, data) |
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259 end |
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260 return false |
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261 end |
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262 |
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263 json_schema_object.validate = validate; |
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264 |
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265 return json_schema_object |