Mercurial > prosody-modules
view mod_storage_ldap/ldap/vcard.lib.lua @ 4651:8231774f5bfd
mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8
The `body:sub()` call risks splitting the string in the middle of a
multi-byte UTF-8 sequence. This should have been caught by util.stanza
validation, but that would have caused some havoc, at the very least causing
the notification to not be sent.
There have been no reports of this happening. Likely because this module
isn't widely deployed among users with languages that use many longer UTF-8
sequences.
The util.encodings.utf8.valid() function is O(n) where only the last
sequence really needs to be checked, but it's in C and expected to be fast.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 22 Aug 2021 13:22:59 +0200 |
parents | f160166612c2 |
children |
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-- vim:sts=4 sw=4 -- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- Copyright (C) 2012 Rob Hoelz -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local st = require 'util.stanza'; local VCARD_NS = 'vcard-temp'; local builder_methods = {}; local base64_encode = require('util.encodings').base64.encode; function builder_methods:addvalue(key, value) self.vcard:tag(key):text(value):up(); end function builder_methods:addphotofield(tagname, format_section) local record = self.record; local format = self.format; local vcard = self.vcard; local config = format[format_section]; if not config then return; end if config.extval then if record[config.extval] then local tag = vcard:tag(tagname); tag:tag('EXTVAL'):text(record[config.extval]):up(); end elseif config.type and config.binval then if record[config.binval] then local tag = vcard:tag(tagname); tag:tag('TYPE'):text(config.type):up(); tag:tag('BINVAL'):text(base64_encode(record[config.binval])):up(); end else module:log('error', 'You have an invalid %s config section', tagname); return; end vcard:up(); end function builder_methods:addregularfield(tagname, format_section) local record = self.record; local format = self.format; local vcard = self.vcard; if not format[format_section] then return; end local tag = vcard:tag(tagname); for k, v in pairs(format[format_section]) do tag:tag(string.upper(k)):text(record[v]):up(); end vcard:up(); end function builder_methods:addmultisectionedfield(tagname, format_section) local record = self.record; local format = self.format; local vcard = self.vcard; if not format[format_section] then return; end for k, v in pairs(format[format_section]) do local tag = vcard:tag(tagname); if type(k) == 'string' then tag:tag(string.upper(k)):up(); end for k2, v2 in pairs(v) do if type(v2) == 'boolean' then tag:tag(string.upper(k2)):up(); else tag:tag(string.upper(k2)):text(record[v2]):up(); end end vcard:up(); end end function builder_methods:build() local record = self.record; local format = self.format; self:addvalue( 'VERSION', '2.0'); self:addvalue( 'FN', record[format.displayname]); self:addregularfield( 'N', 'name'); self:addvalue( 'NICKNAME', record[format.nickname]); self:addphotofield( 'PHOTO', 'photo'); self:addvalue( 'BDAY', record[format.birthday]); self:addmultisectionedfield('ADR', 'address'); self:addvalue( 'LABEL', nil); -- we don't support LABEL...yet. self:addmultisectionedfield('TEL', 'telephone'); self:addmultisectionedfield('EMAIL', 'email'); self:addvalue( 'JABBERID', record.jid); self:addvalue( 'MAILER', record[format.mailer]); self:addvalue( 'TZ', record[format.timezone]); self:addregularfield( 'GEO', 'geo'); self:addvalue( 'TITLE', record[format.title]); self:addvalue( 'ROLE', record[format.role]); self:addphotofield( 'LOGO', 'logo'); self:addvalue( 'AGENT', nil); -- we don't support AGENT...yet. self:addregularfield( 'ORG', 'org'); self:addvalue( 'CATEGORIES', nil); -- we don't support CATEGORIES...yet. self:addvalue( 'NOTE', record[format.note]); self:addvalue( 'PRODID', nil); -- we don't support PRODID...yet. self:addvalue( 'REV', record[format.rev]); self:addvalue( 'SORT-STRING', record[format.sortstring]); self:addregularfield( 'SOUND', 'sound'); self:addvalue( 'UID', record[format.uid]); self:addvalue( 'URL', record[format.url]); self:addvalue( 'CLASS', nil); -- we don't support CLASS...yet. self:addregularfield( 'KEY', 'key'); self:addvalue( 'DESC', record[format.description]); return self.vcard; end local function new_builder(params) local vcard_tag = st.stanza('vCard', { xmlns = VCARD_NS }); local object = { vcard = vcard_tag, __index = builder_methods, }; for k, v in pairs(params) do object[k] = v; end setmetatable(object, object); return object; end local _M = {}; function _M.create(params) local builder = new_builder(params); return builder:build(); end return _M;