export TALER_iban_validate() API
This commit is contained in:
Christian Grothoff
parent
8ad068ccb5
commit
f98c463be2
@ -352,6 +352,20 @@ char *
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TALER_payto_validate (const char *payto_uri);
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/**
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* Check that an IBAN number is well-formed.
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*
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* Validates given IBAN according to the European Banking Standards. See:
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* http://www.europeanpaymentscouncil.eu/documents/ECBS%20IBAN%20standard%20EBS204_V3.2.pdf
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*
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* @param iban the IBAN to check
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* @return NULL on success, otherwise an error
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* message to be freed by the caller!
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*/
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char *
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TALER_iban_validate (const char *iban);
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/**
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* Possible values for a binary filter.
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*/
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@ -71,6 +71,7 @@ libtalerutil_la_SOURCES = \
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crypto_wire.c \
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getopt.c \
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lang.c \
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iban.c \
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mhd.c \
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offline_signatures.c \
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payto.c \
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315
src/util/iban.c
Normal file
315
src/util/iban.c
Normal file
@ -0,0 +1,315 @@
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/*
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This file is part of TALER
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Copyright (C) 2019-2021 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file iban.c
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* @brief Common utility function for dealing with IBAN numbers
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* @author Florian Dold
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*/
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#include "platform.h"
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#include "taler_util.h"
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/* Country table taken from GNU gettext */
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/**
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* Entry in the country table.
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*/
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struct CountryTableEntry
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{
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/**
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* 2-Character international country code.
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*/
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const char *code;
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/**
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* Long English name of the country.
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*/
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const char *english;
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};
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/* Keep the following table in sync with gettext.
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WARNING: the entries should stay sorted according to the code */
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/**
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* List of country codes.
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*/
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static const struct CountryTableEntry country_table[] = {
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{ "AE", "U.A.E." },
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{ "AF", "Afghanistan" },
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{ "AL", "Albania" },
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{ "AM", "Armenia" },
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{ "AN", "Netherlands Antilles" },
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{ "AR", "Argentina" },
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{ "AT", "Austria" },
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{ "AU", "Australia" },
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{ "AZ", "Azerbaijan" },
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{ "BA", "Bosnia and Herzegovina" },
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{ "BD", "Bangladesh" },
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{ "BE", "Belgium" },
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{ "BG", "Bulgaria" },
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{ "BH", "Bahrain" },
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{ "BN", "Brunei Darussalam" },
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{ "BO", "Bolivia" },
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{ "BR", "Brazil" },
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{ "BT", "Bhutan" },
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{ "BY", "Belarus" },
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{ "BZ", "Belize" },
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{ "CA", "Canada" },
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{ "CG", "Congo" },
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{ "CH", "Switzerland" },
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{ "CI", "Cote d'Ivoire" },
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{ "CL", "Chile" },
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{ "CM", "Cameroon" },
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{ "CN", "People's Republic of China" },
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{ "CO", "Colombia" },
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{ "CR", "Costa Rica" },
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{ "CS", "Serbia and Montenegro" },
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{ "CZ", "Czech Republic" },
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{ "DE", "Germany" },
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{ "DK", "Denmark" },
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{ "DO", "Dominican Republic" },
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{ "DZ", "Algeria" },
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{ "EC", "Ecuador" },
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{ "EE", "Estonia" },
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{ "EG", "Egypt" },
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{ "ER", "Eritrea" },
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{ "ES", "Spain" },
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{ "ET", "Ethiopia" },
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{ "FI", "Finland" },
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{ "FO", "Faroe Islands" },
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{ "FR", "France" },
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{ "GB", "United Kingdom" },
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{ "GD", "Caribbean" },
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{ "GE", "Georgia" },
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{ "GL", "Greenland" },
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{ "GR", "Greece" },
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{ "GT", "Guatemala" },
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{ "HK", "Hong Kong" },
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{ "HK", "Hong Kong S.A.R." },
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{ "HN", "Honduras" },
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{ "HR", "Croatia" },
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{ "HT", "Haiti" },
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{ "HU", "Hungary" },
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{ "ID", "Indonesia" },
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{ "IE", "Ireland" },
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{ "IL", "Israel" },
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{ "IN", "India" },
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{ "IQ", "Iraq" },
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{ "IR", "Iran" },
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{ "IS", "Iceland" },
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{ "IT", "Italy" },
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{ "JM", "Jamaica" },
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{ "JO", "Jordan" },
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{ "JP", "Japan" },
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{ "KE", "Kenya" },
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{ "KG", "Kyrgyzstan" },
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{ "KH", "Cambodia" },
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{ "KR", "South Korea" },
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{ "KW", "Kuwait" },
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{ "KZ", "Kazakhstan" },
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{ "LA", "Laos" },
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{ "LB", "Lebanon" },
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{ "LI", "Liechtenstein" },
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{ "LK", "Sri Lanka" },
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{ "LT", "Lithuania" },
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{ "LU", "Luxembourg" },
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{ "LV", "Latvia" },
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{ "LY", "Libya" },
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{ "MA", "Morocco" },
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{ "MC", "Principality of Monaco" },
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{ "MD", "Moldava" },
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{ "MD", "Moldova" },
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{ "ME", "Montenegro" },
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{ "MK", "Former Yugoslav Republic of Macedonia" },
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{ "ML", "Mali" },
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{ "MM", "Myanmar" },
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{ "MN", "Mongolia" },
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{ "MO", "Macau S.A.R." },
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{ "MT", "Malta" },
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{ "MV", "Maldives" },
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{ "MX", "Mexico" },
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{ "MY", "Malaysia" },
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{ "NG", "Nigeria" },
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{ "NI", "Nicaragua" },
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{ "NL", "Netherlands" },
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{ "NO", "Norway" },
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{ "NP", "Nepal" },
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{ "NZ", "New Zealand" },
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{ "OM", "Oman" },
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{ "PA", "Panama" },
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{ "PE", "Peru" },
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{ "PH", "Philippines" },
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{ "PK", "Islamic Republic of Pakistan" },
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{ "PL", "Poland" },
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{ "PR", "Puerto Rico" },
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{ "PT", "Portugal" },
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{ "PY", "Paraguay" },
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{ "QA", "Qatar" },
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{ "RE", "Reunion" },
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{ "RO", "Romania" },
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{ "RS", "Serbia" },
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{ "RU", "Russia" },
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{ "RW", "Rwanda" },
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{ "SA", "Saudi Arabia" },
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{ "SE", "Sweden" },
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{ "SG", "Singapore" },
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{ "SI", "Slovenia" },
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{ "SK", "Slovak" },
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{ "SN", "Senegal" },
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{ "SO", "Somalia" },
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{ "SR", "Suriname" },
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{ "SV", "El Salvador" },
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{ "SY", "Syria" },
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{ "TH", "Thailand" },
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{ "TJ", "Tajikistan" },
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{ "TM", "Turkmenistan" },
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{ "TN", "Tunisia" },
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{ "TR", "Turkey" },
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{ "TT", "Trinidad and Tobago" },
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{ "TW", "Taiwan" },
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{ "TZ", "Tanzania" },
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{ "UA", "Ukraine" },
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{ "US", "United States" },
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{ "UY", "Uruguay" },
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{ "VA", "Vatican" },
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{ "VE", "Venezuela" },
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{ "VN", "Viet Nam" },
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{ "YE", "Yemen" },
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{ "ZA", "South Africa" },
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{ "ZW", "Zimbabwe" }
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};
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/**
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* Country code comparator function, for binary search with bsearch().
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*
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* @param ptr1 pointer to a `struct table_entry`
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* @param ptr2 pointer to a `struct table_entry`
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* @return result of memcmp()'ing the 2-digit country codes of the entries
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*/
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static int
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cmp_country_code (const void *ptr1,
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const void *ptr2)
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{
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const struct CountryTableEntry *cc1 = ptr1;
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const struct CountryTableEntry *cc2 = ptr2;
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return memcmp (cc1->code,
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cc2->code,
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2);
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}
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char *
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TALER_iban_validate (const char *iban)
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{
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char cc[2];
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char ibancpy[35];
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struct CountryTableEntry cc_entry;
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unsigned int len;
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char *nbuf;
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unsigned long long dividend;
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unsigned long long remainder;
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unsigned int i;
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unsigned int j;
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len = strlen (iban);
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if (len < 4)
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return GNUNET_strdup ("IBAN number too short to be valid");
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if (len > 34)
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return GNUNET_strdup ("IBAN number too long to be valid");
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memcpy (cc, iban, 2);
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memcpy (ibancpy, iban + 4, len - 4);
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memcpy (ibancpy + len - 4, iban, 4);
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ibancpy[len] = '\0';
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cc_entry.code = cc;
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cc_entry.english = NULL;
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if (NULL ==
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bsearch (&cc_entry,
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country_table,
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sizeof (country_table) / sizeof (struct CountryTableEntry),
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sizeof (struct CountryTableEntry),
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&cmp_country_code))
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{
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char *msg;
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GNUNET_asprintf (&msg,
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"Country code `%c%c' not supported\n",
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cc[0],
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cc[1]);
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return msg;
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}
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nbuf = GNUNET_malloc ((len * 2) + 1);
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for (i = 0, j = 0; i < len; i++)
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{
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if (isalpha ((unsigned char) ibancpy[i]))
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{
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if (2 != snprintf (&nbuf[j],
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3,
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"%2u",
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(ibancpy[i] - 'A' + 10)))
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{
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GNUNET_break (0);
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return GNUNET_strdup ("internal invariant violation");
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}
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j += 2;
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continue;
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}
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nbuf[j] = ibancpy[i];
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j++;
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}
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for (j = 0; '\0' != nbuf[j]; j++)
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{
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if (! isdigit ( (unsigned char) nbuf[j]))
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{
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char *msg;
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GNUNET_asprintf (&msg,
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"digit expected at `%s'",
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&nbuf[j]);
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GNUNET_free (nbuf);
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return msg;
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}
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}
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GNUNET_assert (sizeof(dividend) >= 8);
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remainder = 0;
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for (unsigned int i = 0; i<j; i += 16)
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{
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int nread;
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if (1 !=
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sscanf (&nbuf[i],
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"%16llu %n",
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÷nd,
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&nread))
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{
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char *msg;
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GNUNET_asprintf (&msg,
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"wrong input for checksum calculation at `%s'",
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&nbuf[i]);
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GNUNET_free (nbuf);
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return msg;
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}
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if (0 != remainder)
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dividend += remainder * (pow (10, nread));
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remainder = dividend % 97;
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}
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GNUNET_free (nbuf);
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if (1 != remainder)
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return GNUNET_strdup ("IBAN checksum is wrong");
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return NULL;
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}
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302
src/util/payto.c
302
src/util/payto.c
@ -147,306 +147,6 @@ TALER_xtalerbank_account_from_payto (const char *payto)
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}
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/* Country table taken from GNU gettext */
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/**
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* Entry in the country table.
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*/
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struct CountryTableEntry
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{
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/**
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* 2-Character international country code.
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*/
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const char *code;
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/**
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* Long English name of the country.
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*/
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const char *english;
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};
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/* Keep the following table in sync with gettext.
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WARNING: the entries should stay sorted according to the code */
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/**
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* List of country codes.
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*/
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static const struct CountryTableEntry country_table[] = {
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{ "AE", "U.A.E." },
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{ "AF", "Afghanistan" },
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{ "AL", "Albania" },
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{ "AM", "Armenia" },
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{ "AN", "Netherlands Antilles" },
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{ "AR", "Argentina" },
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{ "AT", "Austria" },
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{ "AU", "Australia" },
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{ "AZ", "Azerbaijan" },
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{ "BA", "Bosnia and Herzegovina" },
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{ "BD", "Bangladesh" },
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{ "BE", "Belgium" },
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{ "BG", "Bulgaria" },
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{ "BH", "Bahrain" },
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{ "BN", "Brunei Darussalam" },
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{ "BO", "Bolivia" },
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{ "BR", "Brazil" },
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{ "BT", "Bhutan" },
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{ "BY", "Belarus" },
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{ "BZ", "Belize" },
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{ "CA", "Canada" },
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{ "CG", "Congo" },
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{ "CH", "Switzerland" },
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{ "CI", "Cote d'Ivoire" },
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{ "CL", "Chile" },
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{ "CM", "Cameroon" },
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{ "CN", "People's Republic of China" },
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{ "CO", "Colombia" },
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{ "CR", "Costa Rica" },
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{ "CS", "Serbia and Montenegro" },
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{ "CZ", "Czech Republic" },
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{ "DE", "Germany" },
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{ "DK", "Denmark" },
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{ "DO", "Dominican Republic" },
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{ "DZ", "Algeria" },
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{ "EC", "Ecuador" },
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{ "EE", "Estonia" },
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{ "EG", "Egypt" },
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{ "ER", "Eritrea" },
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{ "ES", "Spain" },
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{ "ET", "Ethiopia" },
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{ "FI", "Finland" },
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{ "FO", "Faroe Islands" },
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{ "FR", "France" },
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{ "GB", "United Kingdom" },
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{ "GD", "Caribbean" },
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{ "GE", "Georgia" },
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{ "GL", "Greenland" },
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{ "GR", "Greece" },
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{ "GT", "Guatemala" },
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{ "HK", "Hong Kong" },
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{ "HK", "Hong Kong S.A.R." },
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{ "HN", "Honduras" },
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{ "HR", "Croatia" },
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{ "HT", "Haiti" },
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{ "HU", "Hungary" },
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{ "ID", "Indonesia" },
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{ "IE", "Ireland" },
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{ "IL", "Israel" },
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{ "IN", "India" },
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{ "IQ", "Iraq" },
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{ "IR", "Iran" },
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{ "IS", "Iceland" },
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{ "IT", "Italy" },
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{ "JM", "Jamaica" },
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{ "JO", "Jordan" },
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{ "JP", "Japan" },
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{ "KE", "Kenya" },
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{ "KG", "Kyrgyzstan" },
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{ "KH", "Cambodia" },
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{ "KR", "South Korea" },
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{ "KW", "Kuwait" },
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{ "KZ", "Kazakhstan" },
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{ "LA", "Laos" },
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{ "LB", "Lebanon" },
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{ "LI", "Liechtenstein" },
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{ "LK", "Sri Lanka" },
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{ "LT", "Lithuania" },
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{ "LU", "Luxembourg" },
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{ "LV", "Latvia" },
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{ "LY", "Libya" },
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{ "MA", "Morocco" },
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{ "MC", "Principality of Monaco" },
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{ "MD", "Moldava" },
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{ "MD", "Moldova" },
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{ "ME", "Montenegro" },
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{ "MK", "Former Yugoslav Republic of Macedonia" },
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{ "ML", "Mali" },
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{ "MM", "Myanmar" },
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{ "MN", "Mongolia" },
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{ "MO", "Macau S.A.R." },
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{ "MT", "Malta" },
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{ "MV", "Maldives" },
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{ "MX", "Mexico" },
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{ "MY", "Malaysia" },
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{ "NG", "Nigeria" },
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{ "NI", "Nicaragua" },
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{ "NL", "Netherlands" },
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{ "NO", "Norway" },
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{ "NP", "Nepal" },
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{ "NZ", "New Zealand" },
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||||
{ "OM", "Oman" },
|
||||
{ "PA", "Panama" },
|
||||
{ "PE", "Peru" },
|
||||
{ "PH", "Philippines" },
|
||||
{ "PK", "Islamic Republic of Pakistan" },
|
||||
{ "PL", "Poland" },
|
||||
{ "PR", "Puerto Rico" },
|
||||
{ "PT", "Portugal" },
|
||||
{ "PY", "Paraguay" },
|
||||
{ "QA", "Qatar" },
|
||||
{ "RE", "Reunion" },
|
||||
{ "RO", "Romania" },
|
||||
{ "RS", "Serbia" },
|
||||
{ "RU", "Russia" },
|
||||
{ "RW", "Rwanda" },
|
||||
{ "SA", "Saudi Arabia" },
|
||||
{ "SE", "Sweden" },
|
||||
{ "SG", "Singapore" },
|
||||
{ "SI", "Slovenia" },
|
||||
{ "SK", "Slovak" },
|
||||
{ "SN", "Senegal" },
|
||||
{ "SO", "Somalia" },
|
||||
{ "SR", "Suriname" },
|
||||
{ "SV", "El Salvador" },
|
||||
{ "SY", "Syria" },
|
||||
{ "TH", "Thailand" },
|
||||
{ "TJ", "Tajikistan" },
|
||||
{ "TM", "Turkmenistan" },
|
||||
{ "TN", "Tunisia" },
|
||||
{ "TR", "Turkey" },
|
||||
{ "TT", "Trinidad and Tobago" },
|
||||
{ "TW", "Taiwan" },
|
||||
{ "TZ", "Tanzania" },
|
||||
{ "UA", "Ukraine" },
|
||||
{ "US", "United States" },
|
||||
{ "UY", "Uruguay" },
|
||||
{ "VA", "Vatican" },
|
||||
{ "VE", "Venezuela" },
|
||||
{ "VN", "Viet Nam" },
|
||||
{ "YE", "Yemen" },
|
||||
{ "ZA", "South Africa" },
|
||||
{ "ZW", "Zimbabwe" }
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Country code comparator function, for binary search with bsearch().
|
||||
*
|
||||
* @param ptr1 pointer to a `struct table_entry`
|
||||
* @param ptr2 pointer to a `struct table_entry`
|
||||
* @return result of memcmp()'ing the 2-digit country codes of the entries
|
||||
*/
|
||||
static int
|
||||
cmp_country_code (const void *ptr1,
|
||||
const void *ptr2)
|
||||
{
|
||||
const struct CountryTableEntry *cc1 = ptr1;
|
||||
const struct CountryTableEntry *cc2 = ptr2;
|
||||
|
||||
return memcmp (cc1->code,
|
||||
cc2->code,
|
||||
2);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Validates given IBAN according to the European Banking Standards. See:
|
||||
* http://www.europeanpaymentscouncil.eu/documents/ECBS%20IBAN%20standard%20EBS204_V3.2.pdf
|
||||
*
|
||||
* @param iban the IBAN number to validate
|
||||
* @return NULL if correctly formatted; error message if not
|
||||
*/
|
||||
static char *
|
||||
validate_iban (const char *iban)
|
||||
{
|
||||
char cc[2];
|
||||
char ibancpy[35];
|
||||
struct CountryTableEntry cc_entry;
|
||||
unsigned int len;
|
||||
char *nbuf;
|
||||
unsigned long long dividend;
|
||||
unsigned long long remainder;
|
||||
unsigned int i;
|
||||
unsigned int j;
|
||||
|
||||
len = strlen (iban);
|
||||
if (len < 4)
|
||||
return GNUNET_strdup ("IBAN number too short to be valid");
|
||||
if (len > 34)
|
||||
return GNUNET_strdup ("IBAN number too long to be valid");
|
||||
memcpy (cc, iban, 2);
|
||||
memcpy (ibancpy, iban + 4, len - 4);
|
||||
memcpy (ibancpy + len - 4, iban, 4);
|
||||
ibancpy[len] = '\0';
|
||||
cc_entry.code = cc;
|
||||
cc_entry.english = NULL;
|
||||
if (NULL ==
|
||||
bsearch (&cc_entry,
|
||||
country_table,
|
||||
sizeof (country_table) / sizeof (struct CountryTableEntry),
|
||||
sizeof (struct CountryTableEntry),
|
||||
&cmp_country_code))
|
||||
{
|
||||
char *msg;
|
||||
|
||||
GNUNET_asprintf (&msg,
|
||||
"Country code `%c%c' not supported\n",
|
||||
cc[0],
|
||||
cc[1]);
|
||||
return msg;
|
||||
}
|
||||
nbuf = GNUNET_malloc ((len * 2) + 1);
|
||||
for (i = 0, j = 0; i < len; i++)
|
||||
{
|
||||
if (isalpha ((unsigned char) ibancpy[i]))
|
||||
{
|
||||
if (2 != snprintf (&nbuf[j],
|
||||
3,
|
||||
"%2u",
|
||||
(ibancpy[i] - 'A' + 10)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return GNUNET_strdup ("internal invariant violation");
|
||||
}
|
||||
j += 2;
|
||||
continue;
|
||||
}
|
||||
nbuf[j] = ibancpy[i];
|
||||
j++;
|
||||
}
|
||||
for (j = 0; '\0' != nbuf[j]; j++)
|
||||
{
|
||||
if (! isdigit ( (unsigned char) nbuf[j]))
|
||||
{
|
||||
char *msg;
|
||||
|
||||
GNUNET_asprintf (&msg,
|
||||
"digit expected at `%s'",
|
||||
&nbuf[j]);
|
||||
GNUNET_free (nbuf);
|
||||
return msg;
|
||||
}
|
||||
}
|
||||
GNUNET_assert (sizeof(dividend) >= 8);
|
||||
remainder = 0;
|
||||
for (unsigned int i = 0; i<j; i += 16)
|
||||
{
|
||||
int nread;
|
||||
|
||||
if (1 !=
|
||||
sscanf (&nbuf[i],
|
||||
"%16llu %n",
|
||||
÷nd,
|
||||
&nread))
|
||||
{
|
||||
char *msg;
|
||||
|
||||
GNUNET_asprintf (&msg,
|
||||
"wrong input for checksum calculation at `%s'",
|
||||
&nbuf[i]);
|
||||
GNUNET_free (nbuf);
|
||||
return msg;
|
||||
}
|
||||
if (0 != remainder)
|
||||
dividend += remainder * (pow (10, nread));
|
||||
remainder = dividend % 97;
|
||||
}
|
||||
GNUNET_free (nbuf);
|
||||
if (1 != remainder)
|
||||
return GNUNET_strdup ("IBAN checksum is wrong");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Validate payto://iban/ account URL (only account information,
|
||||
* wire subject and amount are ignored).
|
||||
@ -483,7 +183,7 @@ validate_payto_iban (const char *account_url)
|
||||
result = GNUNET_strdup (iban);
|
||||
}
|
||||
if (NULL !=
|
||||
(err = validate_iban (result)))
|
||||
(err = TALER_iban_validate (result)))
|
||||
{
|
||||
GNUNET_free (result);
|
||||
return err;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user