prosody
61759372be26
util/dataforms.lua

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util/dataforms.lua @ 11707:61759372be26

mod_s2s: Clone 'extra' data to let resolvers add more to it This way 'extra' is unique for each connect() instance, making it safer to mutate it, while inheriting the global settings. See 926d53af9a7a for some more context.
author Kim Alvefur <zash@zash.se>
date Sun, 18 Jul 2021 21:53:26 +0200
parent 11630:855b065d5fd6
child 11874:84f4c6957d62
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rev   line source
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Matthew Wild <mwild1@gmail.com>
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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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diff changeset
131 -- Split into multiple <value> tags, one for each line
e34fdca432a9 util.dataforms: Only add value to rendered form if supplied in the data
Florian Zeitz
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
fc3dced9801e util.dataforms: First commit, incomplete
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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Matthew Wild <mwild1@gmail.com>
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
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
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
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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 data_validators["pubsub:integer-or-max"] =
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316 function (data, field)
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317 if data == "max" then
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318 return true, data;
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319 else
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320 return data_validators["xs:integer"](data, field);
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321 end
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322 end
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323
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324
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325 local function get_form_type(form)
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326 if not st.is_stanza(form) then
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327 return nil, "not a stanza object";
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328 elseif form.attr.xmlns ~= "jabber:x:data" or form.name ~= "x" then
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329 return nil, "not a dataform element";
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330 end
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331 for field in form:childtags("field") do
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332 if field.attr.var == "FORM_TYPE" then
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333 return field:get_child_text("value");
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334 end
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335 end
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336 return "";
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337 end
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338
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339 return {
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340 new = new;
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341 get_type = get_form_type;
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342 };
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343
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parents:
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344
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345 --[=[
845
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parents:
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346
fc3dced9801e util.dataforms: First commit, incomplete
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parents:
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347 Layout:
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parents:
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348 {
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parents:
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349
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parents:
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350 title = "MUC Configuration",
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351 instructions = [[Use this form to configure options for this MUC room.]],
fc3dced9801e util.dataforms: First commit, incomplete
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parents:
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352
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353 { name = "FORM_TYPE", type = "hidden", required = true };
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354 { name = "field-name", type = "field-type", required = false };
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355 }
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parents:
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356
fc3dced9801e util.dataforms: First commit, incomplete
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parents:
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357
951
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parents: 851
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358 --]=]