Mercurial > prosody-modules
view mod_captcha_registration/util/dataforms.lua @ 4249:64aa1d9d70ac
mod_rest: Catch and log errors in callback promise chain
From the code it looks like it should be possible to reply to an error
stanza, but it did not. Turns out I was saved by my local developer mode
module which throws errors if an attempt is made to create an errror
reply to an error stanza. However nothing collects this error from the
promise, so all I got was confusion.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 15 Nov 2020 16:25:49 +0100 |
parents | 985bfc6e8cad |
children |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local setmetatable = setmetatable; local pairs, ipairs = pairs, ipairs; local tostring, type, next = tostring, type, next; local t_concat = table.concat; local st = require "util.stanza"; local jid_prep = require "util.jid".prep; module "dataforms" local xmlns_forms = 'jabber:x:data'; local form_t = {}; local form_mt = { __index = form_t }; function new(layout) return setmetatable(layout, form_mt); end function form_t.form(layout, data, formtype) local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype or "form" }); if layout.title then form:tag("title"):text(layout.title):up(); end if layout.instructions then form:tag("instructions"):text(layout.instructions):up(); end for n, field in ipairs(layout) do local field_type = field.type or "text-single"; -- Add field tag form:tag("field", { type = field_type, var = field.name, label = field.label }); local value = (data and data[field.name]) or field.value; if value then -- Add value, depending on type if field_type == "hidden" then if type(value) == "table" then -- Assume an XML snippet form:tag("value") :add_child(value) :up(); else form:tag("value"):text(tostring(value)):up(); end elseif field_type == "boolean" then form:tag("value"):text((value and "1") or "0"):up(); elseif field_type == "fixed" then form:tag("value"):text(value):up(); elseif field_type == "jid-multi" then for _, jid in ipairs(value) do form:tag("value"):text(jid):up(); end elseif field_type == "jid-single" then form:tag("value"):text(value):up(); elseif field_type == "text-single" or field_type == "text-private" then form:tag("value"):text(value):up(); elseif field_type == "text-multi" then -- Split into multiple <value> tags, one for each line for line in value:gmatch("([^\r\n]+)\r?\n*") do form:tag("value"):text(line):up(); end elseif field_type == "list-single" then local has_default = false; for _, val in ipairs(value) do if type(val) == "table" then form:tag("option", { label = val.label }):tag("value"):text(val.value):up():up(); if val.default and (not has_default) then form:tag("value"):text(val.value):up(); has_default = true; end else form:tag("option", { label= val }):tag("value"):text(tostring(val)):up():up(); end end elseif field_type == "list-multi" then for _, val in ipairs(value) do if type(val) == "table" then form:tag("option", { label = val.label }):tag("value"):text(val.value):up():up(); if val.default then form:tag("value"):text(val.value):up(); end else form:tag("option", { label= val }):tag("value"):text(tostring(val)):up():up(); end end elseif field_type == "media" then form:tag("media", { xmlns = "urn:xmpp:media-element" }); for _, val in ipairs(value) do form:tag("uri", { type = val.type }):text(val.uri):up() end form:up(); end end if field.required then form:tag("required"):up(); end -- Jump back up to list of fields form:up(); end return form; end local field_readers = {}; function form_t.data(layout, stanza) local data = {}; local errors = {}; for _, field in ipairs(layout) do local tag; for field_tag in stanza:childtags() do if field.name == field_tag.attr.var then tag = field_tag; break; end end if not tag then if field.required then errors[field.name] = "Required value missing"; end else local reader = field_readers[field.type]; if reader then data[field.name], errors[field.name] = reader(tag, field.required); end end end if next(errors) then return data, errors; end return data; end field_readers["text-single"] = function (field_tag, required) local data = field_tag:get_child_text("value"); if data and #data > 0 then return data elseif required then return nil, "Required value missing"; end end field_readers["text-private"] = field_readers["text-single"]; field_readers["jid-single"] = function (field_tag, required) local raw_data = field_tag:get_child_text("value") local data = jid_prep(raw_data); if data and #data > 0 then return data elseif raw_data then return nil, "Invalid JID: " .. raw_data; elseif required then return nil, "Required value missing"; end end field_readers["jid-multi"] = function (field_tag, required) local result = {}; local err = {}; for value_tag in field_tag:childtags("value") do local raw_value = value_tag:get_text(); local value = jid_prep(raw_value); result[#result+1] = value; if raw_value and not value then err[#err+1] = ("Invalid JID: " .. raw_value); end end if #result > 0 then return result, (#err > 0 and t_concat(err, "\n") or nil); elseif required then return nil, "Required value missing"; end end field_readers["list-multi"] = function (field_tag, required) local result = {}; for value in field_tag:childtags("value") do result[#result+1] = value:get_text(); end if #result > 0 then return result; elseif required then return nil, "Required value missing"; end end field_readers["text-multi"] = function (field_tag, required) local data, err = field_readers["list-multi"](field_tag, required); if data then data = t_concat(data, "\n"); end return data, err; end field_readers["list-single"] = field_readers["text-single"]; local boolean_values = { ["1"] = true, ["true"] = true, ["0"] = false, ["false"] = false, }; field_readers["boolean"] = function (field_tag, required) local raw_value = field_tag:get_child_text("value"); local value = boolean_values[raw_value ~= nil and raw_value]; if value ~= nil then return value; elseif raw_value then return nil, "Invalid boolean representation"; elseif required then return nil, "Required value missing"; end end field_readers["hidden"] = function (field_tag) return field_tag:get_child_text("value"); end field_readers["media"] = field_readers["text-single"] return _M; --[=[ Layout: { title = "MUC Configuration", instructions = [[Use this form to configure options for this MUC room.]], { name = "FORM_TYPE", type = "hidden", required = true }; { name = "field-name", type = "field-type", required = false }; } --]=]