prosody
e602f3d77ace
util/dataforms.lua

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util/dataforms.lua @ 11228:e602f3d77ace

doap: Add XEP-0044, Expat should be handling namespaces
author Kim Alvefur <zash@zash.se>
date Sun, 13 Dec 2020 15:08:11 +0100
parent 11070:f7f30a3464fe
child 11630:855b065d5fd6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local setmetatable = setmetatable;
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10 local ipairs = ipairs;
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11 local type, next = type, next;
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12 local tonumber = tonumber;
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13 local tostring = tostring;
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14 local t_concat = table.concat;
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15 local st = require "util.stanza";
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16 local jid_prep = require "util.jid".prep;
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17
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18 local _ENV = nil;
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19 -- luacheck: std none
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20
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21 local xmlns_forms = 'jabber:x:data';
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22 local xmlns_validate = 'http://jabber.org/protocol/xdata-validate';
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23
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24 local form_t = {};
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25 local form_mt = { __index = form_t };
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26
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27 local function new(layout)
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28 return setmetatable(layout, form_mt);
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29 end
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30
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31 function form_t.form(layout, data, formtype)
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32 if not formtype then formtype = "form" end
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33 local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype });
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34 if formtype == "cancel" then
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35 return form;
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36 end
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37 if formtype ~= "submit" then
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38 if layout.title then
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39 form:tag("title"):text(layout.title):up();
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40 end
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41 if layout.instructions then
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42 form:tag("instructions"):text(layout.instructions):up();
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43 end
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44 end
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45 for _, field in ipairs(layout) do
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46 local field_type = field.type or "text-single";
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47 -- Add field tag
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48 form:tag("field", { type = field_type, var = field.var or field.name, label = formtype ~= "submit" and field.label or nil });
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49
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50 if formtype ~= "submit" then
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51 if field.desc then
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52 form:text_tag("desc", field.desc);
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53 end
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54 end
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55
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56 if formtype == "form" and field.datatype then
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57 form:tag("validate", { xmlns = xmlns_validate, datatype = field.datatype });
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58 if field.range_min or field.range_max then
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59 form:tag("range", {
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60 min = field.range_min and tostring(field.range_min),
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61 max = field.range_max and tostring(field.range_max),
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62 }):up();
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63 end
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64 -- <basic/> assumed
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65 form:up();
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66 end
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67
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68
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69 local value = field.value;
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70 local options = field.options;
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71
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72 if data and data[field.name] ~= nil then
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73 value = data[field.name];
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74
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75 if formtype == "form" and type(value) == "table"
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76 and (field_type == "list-single" or field_type == "list-multi") then
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77 -- Allow passing dynamically generated options as values
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78 options, value = value, nil;
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79 end
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80 end
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81
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82 if formtype == "form" and options then
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83 local defaults = {};
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84 for _, val in ipairs(options) do
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85 if type(val) == "table" then
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86 form:tag("option", { label = val.label }):tag("value"):text(val.value):up():up();
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87 if val.default then
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88 defaults[#defaults+1] = val.value;
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89 end
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90 else
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91 form:tag("option", { label= val }):tag("value"):text(val):up():up();
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92 end
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93 end
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94 if not value then
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95 if field_type == "list-single" then
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96 value = defaults[1];
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97 elseif field_type == "list-multi" then
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98 value = defaults;
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99 end
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100 end
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101 end
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102
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103 if value ~= nil then
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104 if type(value) == "number" then
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105 -- TODO validate that this is ok somehow, eg check field.datatype
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106 value = ("%g"):format(value);
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107 end
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108 -- Add value, depending on type
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109 if field_type == "hidden" then
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110 if type(value) == "table" then
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111 -- Assume an XML snippet
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112 form:tag("value")
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113 :add_child(value)
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114 :up();
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115 else
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116 form:tag("value"):text(value):up();
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117 end
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118 elseif field_type == "boolean" then
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119 form:tag("value"):text((value and "1") or "0"):up();
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120 elseif field_type == "fixed" then
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121 form:tag("value"):text(value):up();
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122 elseif field_type == "jid-multi" then
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123 for _, jid in ipairs(value) do
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124 form:tag("value"):text(jid):up();
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125 end
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126 elseif field_type == "jid-single" then
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127 form:tag("value"):text(value):up();
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128 elseif field_type == "text-single" or field_type == "text-private" then
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129 form:tag("value"):text(value):up();
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130 elseif field_type == "text-multi" then
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131 -- Split into multiple <value> tags, one for each line
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parents: 1958
diff changeset
132 for line in value:gmatch("([^\r\n]+)\r?\n*") do
e34fdca432a9 util.dataforms: Only add value to rendered form if supplied in the data
Florian Zeitz
parents: 1958
diff changeset
133 form:tag("value"):text(line):up();
e34fdca432a9 util.dataforms: Only add value to rendered form if supplied in the data
Florian Zeitz
parents: 1958
diff changeset
134 end
e34fdca432a9 util.dataforms: Only add value to rendered form if supplied in the data
Florian Zeitz
parents: 1958
diff changeset
135 elseif field_type == "list-single" then
9111
bc7473fb7ad3 util.dataforms: Normalize indentation
Kim Alvefur <zash@zash.se>
parents: 9094
diff changeset
136 form:tag("value"):text(value):up();
3380
e74e80b454a1 util.dataforms: Add list-multi support
Florian Zeitz <florob@babelmonkeys.de>
parents: 3379
diff changeset
137 elseif field_type == "list-multi" then
9111
bc7473fb7ad3 util.dataforms: Normalize indentation
Kim Alvefur <zash@zash.se>
parents: 9094
diff changeset
138 for _, val in ipairs(value) do
bc7473fb7ad3 util.dataforms: Normalize indentation
Kim Alvefur <zash@zash.se>
parents: 9094
diff changeset
139 form:tag("value"):text(val):up();
7442
156c95bfed0b util.dataforms: Allow separation of options from values in list fields
Kim Alvefur <zash@zash.se>
parents: 6981
diff changeset
140 end
1958
e2b0026143c4 util.dataforms: Incorporate slightly modified patch for list-single type from Florob
Matthew Wild <mwild1@gmail.com>
parents: 1945
diff changeset
141 end
845
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
142 end
6148
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
143
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
144 local media = field.media;
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
145 if media then
11026
a086825ed73a util.dataforms: Convert media element sizes to avoid error on Lua 5.3
Kim Alvefur <zash@zash.se>
parents: 9246
diff changeset
146 form:tag("media", { xmlns = "urn:xmpp:media-element", height = ("%g"):format(media.height), width = ("%g"):format(media.width) });
6148
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
147 for _, val in ipairs(media) do
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
148 form:tag("uri", { type = val.type }):text(val.uri):up()
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
149 end
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
150 form:up();
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
151 end
6149
2ae6e9063e88 Merge 0.9->0.10
Kim Alvefur <zash@zash.se>
parents: 5776 6148
diff changeset
152
9090
56c52cb4d44e util.dataforms: Exclude descriptive text fields from forms of type 'submit'
Kim Alvefur <zash@zash.se>
parents: 9089
diff changeset
153 if formtype == "form" and field.required then
952
ef648f49e734 util.dataforms: Add support for <required/> fields
Matthew Wild <mwild1@gmail.com>
parents: 951
diff changeset
154 form:tag("required"):up();
ef648f49e734 util.dataforms: Add support for <required/> fields
Matthew Wild <mwild1@gmail.com>
parents: 951
diff changeset
155 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5693
diff changeset
156
845
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157 -- Jump back up to list of fields
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158 form:up();
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 end
851
b48c7ed3f7f8 util.dataforms: Return the form
Matthew Wild <mwild1@gmail.com>
parents: 845
diff changeset
160 return form;
845
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 end
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162
955
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parents: 954
diff changeset
163 local field_readers = {};
9243
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
164 local data_validators = {};
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
165
9121
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Kim Alvefur <zash@zash.se>
parents: 9111
diff changeset
166 function form_t.data(layout, stanza, current)
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
167 local data = {};
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
168 local errors = {};
6981
bcaa553de6e8 util.dataforms: Track which fields are included in a form
Kim Alvefur <zash@zash.se>
parents: 6830
diff changeset
169 local present = {};
4397
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Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
170
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
171 for _, field in ipairs(layout) do
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
172 local tag;
6467
77d00a895bbd util/dataforms: Make sure we iterate over field tags
daurnimator <quae@daurnimator.com>
parents: 6148
diff changeset
173 for field_tag in stanza:childtags("field") do
9242
68694c1bd960 util.dataforms: Allow field names to be different from the 'var' attribute
Kim Alvefur <zash@zash.se>
parents: 9121
diff changeset
174 if (field.var or field.name) == field_tag.attr.var then
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
175 tag = field_tag;
2219
9e1c6b6a2ee4 util.dataforms: Don't require type when parsing form XML
Florian Zeitz
parents: 2070
diff changeset
176 break;
9e1c6b6a2ee4 util.dataforms: Don't require type when parsing form XML
Florian Zeitz
parents: 2070
diff changeset
177 end
9e1c6b6a2ee4 util.dataforms: Don't require type when parsing form XML
Florian Zeitz
parents: 2070
diff changeset
178 end
4397
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Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
179
4434
51a7c85751b9 util.dataforms: Fix form verification
Florian Zeitz <florob@babelmonkeys.de>
parents: 4397
diff changeset
180 if not tag then
9121
e5eb36ee07a2 util.dataforms: Allow passing the current values to be used in stead of omitted fields
Kim Alvefur <zash@zash.se>
parents: 9111
diff changeset
181 if current and current[field.name] ~= nil then
e5eb36ee07a2 util.dataforms: Allow passing the current values to be used in stead of omitted fields
Kim Alvefur <zash@zash.se>
parents: 9111
diff changeset
182 data[field.name] = current[field.name];
e5eb36ee07a2 util.dataforms: Allow passing the current values to be used in stead of omitted fields
Kim Alvefur <zash@zash.se>
parents: 9111
diff changeset
183 elseif field.required then
4434
51a7c85751b9 util.dataforms: Fix form verification
Florian Zeitz <florob@babelmonkeys.de>
parents: 4397
diff changeset
184 errors[field.name] = "Required value missing";
51a7c85751b9 util.dataforms: Fix form verification
Florian Zeitz <florob@babelmonkeys.de>
parents: 4397
diff changeset
185 end
9047
ab3488ee3ca5 util.dataforms: Ensure fields have names when collecting data (fixes traceback, thanks Martin)
Kim Alvefur <zash@zash.se>
parents: 8984
diff changeset
186 elseif field.name then
6981
bcaa553de6e8 util.dataforms: Track which fields are included in a form
Kim Alvefur <zash@zash.se>
parents: 6830
diff changeset
187 present[field.name] = true;
4434
51a7c85751b9 util.dataforms: Fix form verification
Florian Zeitz <florob@babelmonkeys.de>
parents: 4397
diff changeset
188 local reader = field_readers[field.type];
51a7c85751b9 util.dataforms: Fix form verification
Florian Zeitz <florob@babelmonkeys.de>
parents: 4397
diff changeset
189 if reader then
9243
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
190 local value, err = reader(tag, field.required);
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
191 local validator = field.datatype and data_validators[field.datatype];
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
192 if value ~= nil and validator then
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
193 local valid, ret = validator(value, field);
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
194 if valid then
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
195 value = ret;
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
196 else
9246
397e8e5a2f1f util.dataforms: Improve default error message for failed datatype validation
Kim Alvefur <zash@zash.se>
parents: 9243
diff changeset
197 value, err = nil, ret or ("Invalid value for data of type " .. field.datatype);
9243
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
198 end
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
199 end
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
200 data[field.name], errors[field.name] = value, err;
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
201 end
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
202 end
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
203 end
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
204 if next(errors) then
6981
bcaa553de6e8 util.dataforms: Track which fields are included in a form
Kim Alvefur <zash@zash.se>
parents: 6830
diff changeset
205 return data, errors, present;
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
206 end
6981
bcaa553de6e8 util.dataforms: Track which fields are included in a form
Kim Alvefur <zash@zash.se>
parents: 6830
diff changeset
207 return data, nil, present;
845
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208 end
fc3dced9801e util.dataforms: First commit, incomplete
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
209
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
210 local function simple_text(field_tag, required)
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
211 local data = field_tag:get_child_text("value");
6830
e08f5d081a6c util.dataforms: Fix interaction of required fields and empty string values (fixes #521)
Kim Alvefur <zash@zash.se>
parents: 6829
diff changeset
212 -- XEP-0004 does not say if an empty string is acceptable for a required value
e08f5d081a6c util.dataforms: Fix interaction of required fields and empty string values (fixes #521)
Kim Alvefur <zash@zash.se>
parents: 6829
diff changeset
213 -- so we will follow HTML5 which says that empty string means missing
e08f5d081a6c util.dataforms: Fix interaction of required fields and empty string values (fixes #521)
Kim Alvefur <zash@zash.se>
parents: 6829
diff changeset
214 if required and (data == nil or data == "") then
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
215 return nil, "Required value missing";
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
216 end
6830
e08f5d081a6c util.dataforms: Fix interaction of required fields and empty string values (fixes #521)
Kim Alvefur <zash@zash.se>
parents: 6829
diff changeset
217 return data; -- Return whatever get_child_text returned, even if empty string
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
218 end
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
219
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
220 field_readers["text-single"] = simple_text;
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
221
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
222 field_readers["text-private"] = simple_text;
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
223
1944
754eebd31538 util.dataforms: Support for jid-single field type especially for Florob :)
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
224 field_readers["jid-single"] =
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
225 function (field_tag, required)
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
226 local raw_data, err = simple_text(field_tag, required);
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
227 if not raw_data then return raw_data, err; end
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
228 local data = jid_prep(raw_data);
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
229 if not data then
4887
4dd61fe04db4 util.dataforms: Don't return invalid JIDs in jid-single.
Kim Alvefur <zash@zash.se>
parents: 4886
diff changeset
230 return nil, "Invalid JID: " .. raw_data;
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
231 end
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
232 return data;
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
233 end
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
234
3540
bc139431830b Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents: 3380
diff changeset
235 field_readers["jid-multi"] =
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
236 function (field_tag, required)
2070
25dc4b9d06b1 util.dataforms: Support for jid-multi field type
Florian Zeitz
parents: 2061
diff changeset
237 local result = {};
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
238 local err = {};
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
239 for value_tag in field_tag:childtags("value") do
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
240 local raw_value = value_tag:get_text();
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
241 local value = jid_prep(raw_value);
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
242 result[#result+1] = value;
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
243 if raw_value and not value then
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
244 err[#err+1] = ("Invalid JID: " .. raw_value);
2070
25dc4b9d06b1 util.dataforms: Support for jid-multi field type
Florian Zeitz
parents: 2061
diff changeset
245 end
25dc4b9d06b1 util.dataforms: Support for jid-multi field type
Florian Zeitz
parents: 2061
diff changeset
246 end
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
247 if #result > 0 then
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
248 return result, (#err > 0 and t_concat(err, "\n") or nil);
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
249 elseif required then
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
250 return nil, "Required value missing";
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
251 end
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
252 end
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
253
4884
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Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
254 field_readers["list-multi"] =
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
255 function (field_tag, required)
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
256 local result = {};
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
257 for value in field_tag:childtags("value") do
4928
5211c11dd865 util.dataforms: Fix parsing of -multi fields
Florian Zeitz <florob@babelmonkeys.de>
parents: 4887
diff changeset
258 result[#result+1] = value:get_text();
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
259 end
5693
ef490e9276df util.dataforms: Return nil for empty list-mutli responses, to be consistent with other readers
Florian Zeitz <florob@babelmonkeys.de>
parents: 5551
diff changeset
260 if #result > 0 then
ef490e9276df util.dataforms: Return nil for empty list-mutli responses, to be consistent with other readers
Florian Zeitz <florob@babelmonkeys.de>
parents: 5551
diff changeset
261 return result;
ef490e9276df util.dataforms: Return nil for empty list-mutli responses, to be consistent with other readers
Florian Zeitz <florob@babelmonkeys.de>
parents: 5551
diff changeset
262 elseif required then
ef490e9276df util.dataforms: Return nil for empty list-mutli responses, to be consistent with other readers
Florian Zeitz <florob@babelmonkeys.de>
parents: 5551
diff changeset
263 return nil, "Required value missing";
ef490e9276df util.dataforms: Return nil for empty list-mutli responses, to be consistent with other readers
Florian Zeitz <florob@babelmonkeys.de>
parents: 5551
diff changeset
264 end
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
Matthew Wild <mwild1@gmail.com>
parents: 954
diff changeset
265 end
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266
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267 field_readers["text-multi"] =
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268 function (field_tag, required)
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269 local data, err = field_readers["list-multi"](field_tag, required);
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270 if data then
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271 data = t_concat(data, "\n");
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272 end
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273 return data, err;
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274 end
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275
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276 field_readers["list-single"] = simple_text;
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277
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278 local boolean_values = {
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279 ["1"] = true, ["true"] = true,
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280 ["0"] = false, ["false"] = false,
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281 };
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282
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283 field_readers["boolean"] =
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284 function (field_tag, required)
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285 local raw_value, err = simple_text(field_tag, required);
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286 if not raw_value then return raw_value, err; end
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287 local value = boolean_values[raw_value];
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288 if value == nil then
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289 return nil, "Invalid boolean representation:" .. raw_value;
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290 end
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291 return value;
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292 end
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293
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294 field_readers["hidden"] =
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295 function (field_tag)
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296 return field_tag:get_child_text("value");
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297 end
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298
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299 data_validators["xs:integer"] =
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300 function (data, field)
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301 local n = tonumber(data);
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302 if not n then
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303 return false, "not a number";
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304 elseif n % 1 ~= 0 then
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305 return false, "not an integer";
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306 end
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307 if field.range_max and n > field.range_max then
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308 return false, "out of bounds";
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309 elseif field.range_min and n < field.range_min then
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310 return false, "out of bounds";
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311 end
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312 return true, n;
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313 end
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314
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315
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316 local function get_form_type(form)
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317 if not st.is_stanza(form) then
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318 return nil, "not a stanza object";
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319 elseif form.attr.xmlns ~= "jabber:x:data" or form.name ~= "x" then
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320 return nil, "not a dataform element";
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321 end
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322 for field in form:childtags("field") do
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323 if field.attr.var == "FORM_TYPE" then
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324 return field:get_child_text("value");
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325 end
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326 end
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327 return "";
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328 end
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329
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330 return {
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331 new = new;
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332 get_type = get_form_type;
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333 };
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334
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335
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336 --[=[
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337
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338 Layout:
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339 {
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340
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341 title = "MUC Configuration",
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342 instructions = [[Use this form to configure options for this MUC room.]],
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343
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344 { name = "FORM_TYPE", type = "hidden", required = true };
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345 { name = "field-name", type = "field-type", required = false };
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346 }
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347
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348
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349 --]=]