prosody
ddc07fb8dcd4
util/dataforms.lua

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util/dataforms.lua @ 9879:ddc07fb8dcd4 0.11

mod_mam: Perform message expiry based on building an index by date (backport of 39ee70fbb009 from trunk) For each day, store a set of users that have new messages. To expire messages, we collect the union of sets of users from dates that fall outside the cleanup range. The previous algoritm did not work well with many users, especially with the default settings.
author Kim Alvefur <zash@zash.se>
date Fri, 22 Mar 2019 17:32:56 +0100
parent 9246:397e8e5a2f1f
child 11026:a086825ed73a
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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 t_concat = table.concat;
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14 local st = require "util.stanza";
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15 local jid_prep = require "util.jid".prep;
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16
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17 local _ENV = nil;
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18 -- luacheck: std none
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19
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20 local xmlns_forms = 'jabber:x:data';
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21 local xmlns_validate = 'http://jabber.org/protocol/xdata-validate';
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22
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23 local form_t = {};
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24 local form_mt = { __index = form_t };
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25
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26 local function new(layout)
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27 return setmetatable(layout, form_mt);
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28 end
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29
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30 function form_t.form(layout, data, formtype)
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31 if not formtype then formtype = "form" end
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32 local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype });
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33 if formtype == "cancel" then
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34 return form;
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35 end
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36 if formtype ~= "submit" then
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37 if layout.title then
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38 form:tag("title"):text(layout.title):up();
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39 end
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40 if layout.instructions then
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41 form:tag("instructions"):text(layout.instructions):up();
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42 end
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43 end
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44 for _, field in ipairs(layout) do
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45 local field_type = field.type or "text-single";
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46 -- Add field tag
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47 form:tag("field", { type = field_type, var = field.var or field.name, label = formtype ~= "submit" and field.label or nil });
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48
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49 if formtype ~= "submit" then
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50 if field.desc then
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51 form:text_tag("desc", field.desc);
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52 end
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53 end
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54
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55 if formtype == "form" and field.datatype then
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56 form:tag("validate", { xmlns = xmlns_validate, datatype = field.datatype });
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57 -- <basic/> assumed
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58 form:up();
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59 end
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60
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61
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62 local value = field.value;
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63 local options = field.options;
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64
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65 if data and data[field.name] ~= nil then
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66 value = data[field.name];
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67
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68 if formtype == "form" and type(value) == "table"
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69 and (field_type == "list-single" or field_type == "list-multi") then
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70 -- Allow passing dynamically generated options as values
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71 options, value = value, nil;
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72 end
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73 end
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74
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75 if formtype == "form" and options then
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76 local defaults = {};
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77 for _, val in ipairs(options) do
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78 if type(val) == "table" then
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79 form:tag("option", { label = val.label }):tag("value"):text(val.value):up():up();
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80 if val.default then
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81 defaults[#defaults+1] = val.value;
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82 end
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83 else
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84 form:tag("option", { label= val }):tag("value"):text(val):up():up();
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85 end
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86 end
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87 if not value then
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88 if field_type == "list-single" then
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89 value = defaults[1];
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90 elseif field_type == "list-multi" then
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91 value = defaults;
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92 end
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93 end
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94 end
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95
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96 if value ~= nil then
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97 if type(value) == "number" then
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98 -- TODO validate that this is ok somehow, eg check field.datatype
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99 value = ("%g"):format(value);
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100 end
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101 -- Add value, depending on type
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102 if field_type == "hidden" then
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103 if type(value) == "table" then
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104 -- Assume an XML snippet
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105 form:tag("value")
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106 :add_child(value)
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107 :up();
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108 else
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109 form:tag("value"):text(value):up();
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110 end
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111 elseif field_type == "boolean" then
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112 form:tag("value"):text((value and "1") or "0"):up();
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113 elseif field_type == "fixed" then
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114 form:tag("value"):text(value):up();
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115 elseif field_type == "jid-multi" then
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116 for _, jid in ipairs(value) do
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117 form:tag("value"):text(jid):up();
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118 end
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119 elseif field_type == "jid-single" then
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120 form:tag("value"):text(value):up();
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121 elseif field_type == "text-single" or field_type == "text-private" then
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122 form:tag("value"):text(value):up();
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123 elseif field_type == "text-multi" then
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124 -- Split into multiple <value> tags, one for each line
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125 for line in value:gmatch("([^\r\n]+)\r?\n*") do
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126 form:tag("value"):text(line):up();
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127 end
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128 elseif field_type == "list-single" then
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129 form:tag("value"):text(value):up();
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130 elseif field_type == "list-multi" then
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131 for _, val in ipairs(value) do
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Kim Alvefur <zash@zash.se>
parents: 9094
diff changeset
132 form:tag("value"):text(val):up();
7442
156c95bfed0b util.dataforms: Allow separation of options from values in list fields
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parents: 6981
diff changeset
133 end
1958
e2b0026143c4 util.dataforms: Incorporate slightly modified patch for list-single type from Florob
Matthew Wild <mwild1@gmail.com>
parents: 1945
diff changeset
134 end
845
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parents:
diff changeset
135 end
6148
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parents: 5693
diff changeset
136
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
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parents: 5693
diff changeset
137 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
138 if media then
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
139 form:tag("media", { xmlns = "urn:xmpp:media-element", height = media.height, width = media.width });
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
140 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
141 form:tag("uri", { type = val.type }):text(val.uri):up()
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Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
142 end
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
143 form:up();
7dcd6f124c93 util.dataforms: Add support for XEP-0221: Data Forms Media Element
Kim Alvefur <zash@zash.se>
parents: 5693
diff changeset
144 end
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Kim Alvefur <zash@zash.se>
parents: 5776 6148
diff changeset
145
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Kim Alvefur <zash@zash.se>
parents: 9089
diff changeset
146 if formtype == "form" and field.required then
952
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Matthew Wild <mwild1@gmail.com>
parents: 951
diff changeset
147 form:tag("required"):up();
ef648f49e734 util.dataforms: Add support for <required/> fields
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parents: 951
diff changeset
148 end
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parents: 5693
diff changeset
149
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150 -- Jump back up to list of fields
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parents:
diff changeset
151 form:up();
fc3dced9801e util.dataforms: First commit, incomplete
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parents:
diff changeset
152 end
851
b48c7ed3f7f8 util.dataforms: Return the form
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diff changeset
153 return form;
845
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parents:
diff changeset
154 end
fc3dced9801e util.dataforms: First commit, incomplete
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parents:
diff changeset
155
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diff changeset
156 local field_readers = {};
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diff changeset
157 local data_validators = {};
955
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diff changeset
158
9121
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diff changeset
159 function form_t.data(layout, stanza, current)
955
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diff changeset
160 local data = {};
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diff changeset
161 local errors = {};
6981
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Kim Alvefur <zash@zash.se>
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diff changeset
162 local present = {};
4397
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163
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Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
164 for _, field in ipairs(layout) do
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
165 local tag;
6467
77d00a895bbd util/dataforms: Make sure we iterate over field tags
daurnimator <quae@daurnimator.com>
parents: 6148
diff changeset
166 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
167 if (field.var or field.name) == field_tag.attr.var then
4397
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parents: 3540
diff changeset
168 tag = field_tag;
2219
9e1c6b6a2ee4 util.dataforms: Don't require type when parsing form XML
Florian Zeitz
parents: 2070
diff changeset
169 break;
9e1c6b6a2ee4 util.dataforms: Don't require type when parsing form XML
Florian Zeitz
parents: 2070
diff changeset
170 end
9e1c6b6a2ee4 util.dataforms: Don't require type when parsing form XML
Florian Zeitz
parents: 2070
diff changeset
171 end
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172
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diff changeset
173 if not tag then
9121
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Kim Alvefur <zash@zash.se>
parents: 9111
diff changeset
174 if current and current[field.name] ~= nil then
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parents: 9111
diff changeset
175 data[field.name] = current[field.name];
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parents: 9111
diff changeset
176 elseif field.required then
4434
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parents: 4397
diff changeset
177 errors[field.name] = "Required value missing";
51a7c85751b9 util.dataforms: Fix form verification
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parents: 4397
diff changeset
178 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
179 elseif field.name then
6981
bcaa553de6e8 util.dataforms: Track which fields are included in a form
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parents: 6830
diff changeset
180 present[field.name] = true;
4434
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Florian Zeitz <florob@babelmonkeys.de>
parents: 4397
diff changeset
181 local reader = field_readers[field.type];
51a7c85751b9 util.dataforms: Fix form verification
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parents: 4397
diff changeset
182 if reader then
9243
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
183 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
184 local validator = field.datatype and data_validators[field.datatype];
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
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parents: 9242
diff changeset
185 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
186 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
187 if valid then
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
188 value = ret;
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parents: 9242
diff changeset
189 else
9246
397e8e5a2f1f util.dataforms: Improve default error message for failed datatype validation
Kim Alvefur <zash@zash.se>
parents: 9243
diff changeset
190 value, err = nil, ret or ("Invalid value for data of type " .. field.datatype);
9243
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parents: 9242
diff changeset
191 end
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
Kim Alvefur <zash@zash.se>
parents: 9242
diff changeset
192 end
a4c52e304e6f util.dataforms: Add support for XEP-0122: Data Forms Validation
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parents: 9242
diff changeset
193 data[field.name], errors[field.name] = value, err;
4397
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diff changeset
194 end
955
98ca5a753fee util.dataforms: Support for retriving the field value data from forms
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195 end
4397
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196 end
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parents: 3540
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197 if next(errors) then
6981
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diff changeset
198 return data, errors, present;
955
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parents: 954
diff changeset
199 end
6981
bcaa553de6e8 util.dataforms: Track which fields are included in a form
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diff changeset
200 return data, nil, present;
845
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parents:
diff changeset
201 end
fc3dced9801e util.dataforms: First commit, incomplete
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parents:
diff changeset
202
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
203 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
204 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
205 -- 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
206 -- 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
207 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
208 return nil, "Required value missing";
4397
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parents: 3540
diff changeset
209 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
210 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
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parents: 6777
diff changeset
211 end
4397
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
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diff changeset
212
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
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parents: 6777
diff changeset
213 field_readers["text-single"] = simple_text;
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
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parents: 6777
diff changeset
214
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
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parents: 6777
diff changeset
215 field_readers["text-private"] = simple_text;
955
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parents: 954
diff changeset
216
1944
754eebd31538 util.dataforms: Support for jid-single field type especially for Florob :)
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
217 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
218 function (field_tag, required)
6829
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Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
219 local raw_data, err = simple_text(field_tag, required);
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
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parents: 6777
diff changeset
220 if not raw_data then return raw_data, err; end
4884
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diff changeset
221 local data = jid_prep(raw_data);
6829
22522443982f util.dataforms: Refactor parsing to reuse simple text parser instead of duplicate code
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parents: 6777
diff changeset
222 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
223 return nil, "Invalid JID: " .. raw_data;
4397
1378e3c79c34 util.dataforms: Add field verification logic
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parents: 3540
diff changeset
224 end
6829
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parents: 6777
diff changeset
225 return data;
4397
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diff changeset
226 end
1378e3c79c34 util.dataforms: Add field verification logic
Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
227
3540
bc139431830b Monster whitespace commit (beware the whitespace monster).
Waqas Hussain <waqas20@gmail.com>
parents: 3380
diff changeset
228 field_readers["jid-multi"] =
4884
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diff changeset
229 function (field_tag, required)
2070
25dc4b9d06b1 util.dataforms: Support for jid-multi field type
Florian Zeitz
parents: 2061
diff changeset
230 local result = {};
4884
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parents: 4435
diff changeset
231 local err = {};
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
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parents: 4435
diff changeset
232 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
233 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
234 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
235 result[#result+1] = value;
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
236 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
237 err[#err+1] = ("Invalid JID: " .. raw_value);
2070
25dc4b9d06b1 util.dataforms: Support for jid-multi field type
Florian Zeitz
parents: 2061
diff changeset
238 end
25dc4b9d06b1 util.dataforms: Support for jid-multi field type
Florian Zeitz
parents: 2061
diff changeset
239 end
4884
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
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diff changeset
240 if #result > 0 then
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
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parents: 4435
diff changeset
241 return result, (#err > 0 and t_concat(err, "\n") or nil);
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
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parents: 4435
diff changeset
242 elseif required then
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
243 return nil, "Required value missing";
4397
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diff changeset
244 end
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Florian Zeitz <florob@babelmonkeys.de>
parents: 3540
diff changeset
245 end
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parents: 3540
diff changeset
246
4884
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diff changeset
247 field_readers["list-multi"] =
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diff changeset
248 function (field_tag, required)
955
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diff changeset
249 local result = {};
4884
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diff changeset
250 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
251 result[#result+1] = value:get_text();
955
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parents: 954
diff changeset
252 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
253 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
254 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
255 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
256 return nil, "Required value missing";
ef490e9276df util.dataforms: Return nil for empty list-mutli responses, to be consistent with other readers
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parents: 5551
diff changeset
257 end
955
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parents: 954
diff changeset
258 end
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parents: 954
diff changeset
259
4884
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diff changeset
260 field_readers["text-multi"] =
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Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
261 function (field_tag, required)
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
262 local data, err = field_readers["list-multi"](field_tag, required);
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
263 if data then
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
parents: 4435
diff changeset
264 data = t_concat(data, "\n");
b8d852aea3ad util.dataforms: Do field validation and normalization in field readers.
Kim Alvefur <zash@zash.se>
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265 end
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266 return data, err;
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267 end
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268
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269 field_readers["list-single"] = simple_text;
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270
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271 local boolean_values = {
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272 ["1"] = true, ["true"] = true,
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273 ["0"] = false, ["false"] = false,
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274 };
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275
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276 field_readers["boolean"] =
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277 function (field_tag, required)
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278 local raw_value, err = simple_text(field_tag, required);
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279 if not raw_value then return raw_value, err; end
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280 local value = boolean_values[raw_value];
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281 if value == nil then
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282 return nil, "Invalid boolean representation:" .. raw_value;
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283 end
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284 return value;
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285 end
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286
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287 field_readers["hidden"] =
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288 function (field_tag)
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289 return field_tag:get_child_text("value");
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290 end
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291
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292 data_validators["xs:integer"] =
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293 function (data)
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294 local n = tonumber(data);
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295 if not n then
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296 return false, "not a number";
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297 elseif n % 1 ~= 0 then
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298 return false, "not an integer";
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299 end
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300 return true, n;
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301 end
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302
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303
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304 local function get_form_type(form)
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305 if not st.is_stanza(form) then
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306 return nil, "not a stanza object";
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307 elseif form.attr.xmlns ~= "jabber:x:data" or form.name ~= "x" then
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308 return nil, "not a dataform element";
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309 end
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310 for field in form:childtags("field") do
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311 if field.attr.var == "FORM_TYPE" then
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312 return field:get_child_text("value");
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313 end
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314 end
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315 return "";
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316 end
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317
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318 return {
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319 new = new;
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320 get_type = get_form_type;
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321 };
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322
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323
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324 --[=[
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325
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326 Layout:
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327 {
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328
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329 title = "MUC Configuration",
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330 instructions = [[Use this form to configure options for this MUC room.]],
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331
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332 { name = "FORM_TYPE", type = "hidden", required = true };
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333 { name = "field-name", type = "field-type", required = false };
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334 }
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335
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336
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337 --]=]