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annotate teal-src/prosody/util/datamapper.tl @ 13946:f5e8ab42c708

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mod_http_file_share: Check that files are still there with correct size Failed uploads can leave behind unused slots. Files shouldn't change size after they have been successfully uploaded, but might as well double check it.
author Kim Alvefur <zash@zash.se>
date Sat, 04 Dec 2021 18:56:51 +0100
parents 88a5cb5a1ab5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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25829015917c util.datamapper: Add Copyright header
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1 -- Copyright (C) 2021 Kim Alvefur
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6 -- Based on
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7 -- https://json-schema.org/draft/2020-12/json-schema-core.html
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8 -- https://json-schema.org/draft/2020-12/json-schema-validation.html
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9 -- http://spec.openapis.org/oas/v3.0.1#xmlObject
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10 -- https://github.com/OAI/OpenAPI-Specification/issues/630 (text:true)
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11 --
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12 -- XML Object Extensions:
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13 -- text to refer to the text content at the same time as attributes
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14 -- x_name_is_value for enum fields where the <tag-name/> is the value
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15 -- x_single_attribute for <tag attr="this"/>
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16 --
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17 -- TODO pointers
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18 -- TODO cleanup / refactor
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19 -- TODO s/number/integer/ once we have appropriate math.type() compat
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20 --
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21
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22 if not math.type then require "prosody.util.mathcompat" end
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23
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24 local st = require "prosody.util.stanza";
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25 local json = require "prosody.util.json"
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26 local pointer = require "prosody.util.jsonpointer";
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27
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28 local type json_type_name = json.json_type_name;
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29 local json_schema_object = require "prosody.util.jsonschema"
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30 local type schema_t = boolean | json_schema_object
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31
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32 local function toboolean ( s : string ) : boolean
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33 if s == "true" or s == "1" then
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34 return true
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35 elseif s == "false" or s == "0" then
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36 return false
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37 elseif s then
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38 return true
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39 end
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40 end
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41
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42 local function totype(t : json_type_name, s : string) : any
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43 if not s then return nil end
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44 if t == "string" then
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45 return s
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46 elseif t == "boolean" then
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47 return toboolean(s)
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48 elseif t == "number" or t == "integer" then
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49 return tonumber(s)
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50 end
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51 end
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52
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53 local enum value_goes
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54 "in_tag_name"
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55 "in_text"
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56 "in_text_tag"
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57 "in_attribute"
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58 "in_single_attribute"
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59 "in_children"
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60 "in_wrapper"
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61 end
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62
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63 local function resolve_schema(schema : schema_t, root : json_schema_object) : schema_t
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64 if schema is json_schema_object then
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65 if schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then
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66 return pointer.resolve(root as table, schema["$ref"]:sub(2)) as schema_t
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67 end
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68 end
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69 return schema
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70 end
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71
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72 local function guess_schema_type(schema : json_schema_object) : json_type_name
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73 local schema_types = schema.type
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74 if schema_types is json_type_name then
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75 return schema_types
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76 elseif schema_types ~= nil then
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77 error "schema has unsupported 'type' property"
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78 elseif schema.properties then
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79 return "object"
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80 elseif schema.items then
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81 return "array"
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82 end
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83 return "string" -- default assumption
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84 end
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85
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86 local function unpack_propschema( propschema : schema_t, propname : string, current_ns : string )
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87 : json_type_name, value_goes, string, string, string, string, { any }
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88 local proptype : json_type_name = "string"
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89 local value_where : value_goes = propname and "in_text_tag" or "in_text"
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90 local name = propname
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91 local namespace : string
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92 local prefix : string
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93 local single_attribute : string
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94 local enums : { any }
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95
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96 if propschema is json_schema_object then
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97 proptype = guess_schema_type(propschema);
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98 end
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99
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100 if proptype == "object" or proptype == "array" then
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101 value_where = "in_children"
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102 end
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103
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104 if propschema is json_schema_object then
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105 local xml = propschema.xml
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106 if xml then
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107 if xml.name then
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108 name = xml.name
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109 end
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110 if xml.namespace and xml.namespace ~= current_ns then
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111 namespace = xml.namespace
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112 end
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113 if xml.prefix then
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114 prefix = xml.prefix
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115 end
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116 if proptype == "array" and xml.wrapped then
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117 value_where = "in_wrapper"
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118 elseif xml.attribute then
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119 value_where = "in_attribute"
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120 elseif xml.text then
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121 value_where = "in_text"
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122 elseif xml.x_name_is_value then
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123 value_where = "in_tag_name"
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124 elseif xml.x_single_attribute then
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125 single_attribute = xml.x_single_attribute
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126 value_where = "in_single_attribute"
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127 end
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128 end
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129 if propschema["const"] then
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130 enums = { propschema["const"] }
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131 elseif propschema["enum"] then
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132 enums = propschema["enum"]
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133 end
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Kim Alvefur <zash@zash.se>
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134 end
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parents: 11455
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135
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136 return proptype, value_where, name, namespace, prefix, single_attribute, enums
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137 end
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parents: 11455
diff changeset
138
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139 local parse_object : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any }
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140 local parse_array : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { any }
11456
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141
11465
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142 local function extract_value (s : st.stanza_t, value_where : value_goes, proptype : json.json_type_name, name : string, namespace : string, prefix : string, single_attribute : string, enums : { any }) : string
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diff changeset
143 if value_where == "in_tag_name" then
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144 local c : st.stanza_t
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145 if proptype == "boolean" then
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diff changeset
146 c = s:get_child(name, namespace);
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147 elseif enums and proptype == "string" then
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148 -- XXX O(n²) ?
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149 -- Probably better to flip the table and loop over :childtags(nil, ns), should be 2xO(n)
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150 -- BUT works first, optimize later
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151 for i = 1, #enums do
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152 c = s:get_child(enums[i] as string, namespace);
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153 if c then break end
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154 end
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155 else
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156 c = s:get_child(nil, namespace);
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157 end
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158 if c then
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159 return c.name
11465
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160 end
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161 elseif value_where == "in_attribute" then
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162 local attr = name
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163 if prefix then
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164 attr = prefix .. ':' .. name
11476
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165 elseif namespace and namespace ~= s.attr.xmlns then
11465
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166 attr = namespace .. "\1" .. name
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167 end
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diff changeset
168 return s.attr[attr]
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diff changeset
169
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170 elseif value_where == "in_text" then
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171 return s:get_text()
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Kim Alvefur <zash@zash.se>
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diff changeset
172
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173 elseif value_where == "in_single_attribute" then
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174 local c = s:get_child(name, namespace)
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175 return c and c.attr[single_attribute]
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176 elseif value_where == "in_text_tag" then
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177 return s:get_child_text(name, namespace)
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178 end
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Kim Alvefur <zash@zash.se>
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179 end
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180
12133
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181 function parse_object (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any }
11435
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parents:
diff changeset
182 local out : { string : any } = {}
12133
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diff changeset
183 schema = resolve_schema(schema, root)
11461
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184 if schema is json_schema_object and schema.properties then
11435
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Kim Alvefur <zash@zash.se>
parents:
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185 for prop, propschema in pairs(schema.properties) do
12133
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186 propschema = resolve_schema(propschema, root)
11435
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parents:
diff changeset
187
11456
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188 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns)
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
189
11465
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diff changeset
190 if value_where == "in_children" and propschema is json_schema_object then
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
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diff changeset
191 if proptype == "object" then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
192 local c = s:get_child(name, namespace)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
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parents:
diff changeset
193 if c then
12133
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diff changeset
194 out[prop] = parse_object(propschema, c, root);
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
195 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
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196 elseif proptype == "array" then
12133
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diff changeset
197 local a = parse_array(propschema, s, root);
11481
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
198 if a and a[1] ~= nil then
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
199 out[prop] = a;
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
200 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
201 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
202 error "unreachable"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
204 elseif value_where == "in_wrapper" and propschema is json_schema_object and proptype == "array" then
11457
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Kim Alvefur <zash@zash.se>
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diff changeset
205 local wrapper = s:get_child(name, namespace);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
206 if wrapper then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
207 out[prop] = parse_array(propschema, wrapper, root);
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
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parents: 11459
diff changeset
208 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
209 else
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
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diff changeset
210 local value : string = extract_value (s, value_where, proptype, name, namespace, prefix, single_attribute, enums)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
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parents: 11464
diff changeset
211
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
212 out[prop] = totype(proptype, value)
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
213 end
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
214 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
215 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
216
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
217 return out
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
220 function parse_array (schema : json_schema_object, s : st.stanza_t, root : json_schema_object) : { any }
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
221 local itemschema : schema_t = resolve_schema(schema.items, root);
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
222 local proptype, value_where, child_name, namespace, prefix, single_attribute, enums = unpack_propschema(itemschema, nil, s.attr.xmlns)
11466
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
223 local attr_name : string
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
224 if value_where == "in_single_attribute" then -- FIXME this shouldn't be needed
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
225 value_where = "in_attribute";
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
226 attr_name = single_attribute;
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
227 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
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diff changeset
228 local out : { any } = {}
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
229
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
230 if proptype == "object" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
231 if itemschema is json_schema_object then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
232 for c in s:childtags(child_name, namespace) do
12133
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parents: 11481
diff changeset
233 table.insert(out, parse_object(itemschema, c, root));
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
234 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
235 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
236 error "array items must be schema object"
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
237 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
238 elseif proptype == "array" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
239 if itemschema is json_schema_object then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
240 for c in s:childtags(child_name, namespace) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
241 table.insert(out, parse_array(itemschema, c, root));
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
242 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
243 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
244 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
245 for c in s:childtags(child_name, namespace) do
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
246 local value : string = extract_value (c, value_where, proptype, attr_name or child_name, namespace, prefix, single_attribute, enums)
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
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diff changeset
247
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
248 table.insert(out, totype(proptype, value));
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
249 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
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250 end
13878
9ec961173b1c teal: Remove trailing semicolons after return
Kim Alvefur <zash@zash.se>
parents: 12979
diff changeset
251 return out
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
252 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
253
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
254 local function parse (schema : json_schema_object, s : st.stanza_t) : table
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
255 local s_type = guess_schema_type(schema)
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
256 if s_type == "object" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
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diff changeset
257 return parse_object(schema, s, schema)
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
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parents: 12133
diff changeset
258 elseif s_type == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
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parents: 11481
diff changeset
259 return parse_array(schema, s, schema)
11457
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
260 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
261 error "top-level scalars unsupported"
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
262 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
263 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
264
11475
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Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
265 local function toxmlstring(proptype : json_type_name, v : any) : string
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Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
266 if proptype == "string" and v is string then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
267 return v
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
268 elseif proptype == "number" and v is number then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
269 return string.format("%g", v)
13879
88a5cb5a1ab5 util.datamapper: Fix some Teal warnings
Kim Alvefur <zash@zash.se>
parents: 13878
diff changeset
270 elseif proptype == "integer" and v is integer then
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
271 return string.format("%d", v)
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
272 elseif proptype == "boolean" then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
273 return v and "1" or "0"
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
274 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
275 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
276
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
277 local unparse : function (json_schema_object, table, string, string, st.stanza_t, json_schema_object) : st.stanza_t
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
278
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
279 local function unparse_property(out : st.stanza_t, v : any, proptype : json_type_name, propschema : schema_t, value_where : value_goes, name : string, namespace : string, current_ns : string, prefix : string, single_attribute : string, root : json_schema_object)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
280
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
281 if value_where == "in_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
282 local attr = name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
283 if prefix then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
284 attr = prefix .. ':' .. name
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
285 elseif namespace and namespace ~= current_ns then
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
286 attr = namespace .. "\1" .. name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
287 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
288
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
289 out.attr[attr] = toxmlstring(proptype, v)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
290 elseif value_where == "in_text" then
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
291 out:text(toxmlstring(proptype, v))
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
292 elseif value_where == "in_single_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
293 assert(single_attribute)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
294 local propattr : { string : string } = {}
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
295
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
296 if namespace and namespace ~= current_ns then
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
297 propattr.xmlns = namespace
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
298 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
299
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
300 propattr[single_attribute] = toxmlstring(proptype, v)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
301 out:tag(name, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
302
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
303 else
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
304 local propattr : { string : string }
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
305 if namespace ~= current_ns then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
306 propattr = { xmlns = namespace }
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
307 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
308 if value_where == "in_tag_name" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
309 if proptype == "string" and v is string then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
310 out:tag(v, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
311 elseif proptype == "boolean" and v == true then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
312 out:tag(name, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
313 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
314 elseif proptype == "object" and propschema is json_schema_object and v is table then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
315 local c = unparse(propschema, v, name, namespace, nil, root);
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
316 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
317 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
318 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
319 elseif proptype == "array" and propschema is json_schema_object and v is table then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
320 if value_where == "in_wrapper" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
321 local c = unparse(propschema, v, name, namespace, nil, root);
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
322 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
323 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
324 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
325 else
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
326 unparse(propschema, v, name, namespace, out, root);
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
327 end
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
328 else
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
329 out:text_tag(name, toxmlstring(proptype, v), propattr)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
330 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
331 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
332 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
333
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
334 function unparse ( schema : json_schema_object, t : table, current_name : string, current_ns : string, ctx : st.stanza_t, root : json_schema_object ) : st.stanza_t
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
335
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
336 if root == nil then root = schema end
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
337
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
338 if schema.xml then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
339 if schema.xml.name then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
340 current_name = schema.xml.name
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
341 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
342 if schema.xml.namespace then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
343 current_ns = schema.xml.namespace
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
344 end
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
345 -- TODO prefix?
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
346 end
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
347
11462
d1982b7eb00d util.datamapper: Fix arrays nesting one level too deep
Kim Alvefur <zash@zash.se>
parents: 11461
diff changeset
348 local out = ctx or st.stanza(current_name, { xmlns = current_ns })
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
349
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
350 local s_type = guess_schema_type(schema)
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
351 if s_type == "object" then
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
352
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
353 for prop, propschema in pairs(schema.properties) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
354 propschema = resolve_schema(propschema, root)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
355 local v = t[prop]
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
356
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
357 if v ~= nil then
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
358 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns)
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
359 unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute, root)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
360 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
361 end
13878
9ec961173b1c teal: Remove trailing semicolons after return
Kim Alvefur <zash@zash.se>
parents: 12979
diff changeset
362 return out
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
363
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
364 elseif s_type == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
365 local itemschema = resolve_schema(schema.items, root)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
366 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(itemschema, current_name, current_ns)
11468
348b191cd850 util.datamapper: Complete array building support
Kim Alvefur <zash@zash.se>
parents: 11467
diff changeset
367 for _, item in ipairs(t as { string }) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
368 unparse_property(out, item, proptype, itemschema, value_where, name, namespace, current_ns, prefix, single_attribute, root)
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
369 end
13878
9ec961173b1c teal: Remove trailing semicolons after return
Kim Alvefur <zash@zash.se>
parents: 12979
diff changeset
370 return out
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
371 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
372 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
373
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
374 return {
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
375 parse = parse,
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
376 unparse = unparse,
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
377 }