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/* gpgme.js - Javascript integration for gpgme
* Copyright (C) 2018 Bundesamt für Sicherheit in der Informationstechnik
*
* This file is part of GPGME.
*
* GPGME is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* GPGME is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses/>.
* SPDX-License-Identifier: LGPL-2.1+
*
* Author(s):
* Maximilian Krambach <[email protected]>
*/
import { gpgme_error } from './Errors';
/**
* Tries to return an array of fingerprints, either from input fingerprints or
* from Key objects (openpgp Keys or GPGME_Keys are both accepted).
*
* @param {Object | Array<Object> | String | Array<String>} input
* @returns {Array<String>} Array of fingerprints, or an empty array
*/
export function toKeyIdArray(input){
if (!input){
return [];
}
if (!Array.isArray(input)){
input = [input];
}
let result = [];
for (let i=0; i < input.length; i++){
if (typeof(input[i]) === 'string'){
if (isFingerprint(input[i]) === true){
result.push(input[i]);
} else {
// MSG_NOT_A_FPR is just a console warning if warning enabled
// in src/Errors.js
gpgme_error('MSG_NOT_A_FPR');
}
} else if (typeof(input[i]) === 'object'){
let fpr = '';
if (input[i].hasOwnProperty('fingerprint')){
fpr = input[i].fingerprint;
} else if (input[i].hasOwnProperty('primaryKey') &&
input[i].primaryKey.hasOwnProperty('getFingerprint')){
fpr = input[i].primaryKey.getFingerprint();
}
if (isFingerprint(fpr) === true){
result.push(fpr);
} else {
gpgme_error('MSG_NOT_A_FPR');
}
} else {
return gpgme_error('PARAM_WRONG');
}
}
if (result.length === 0){
return [];
} else {
return result;
}
}
/**
* Check if values are valid hexadecimal values of a specified length
* @param {String} key input value.
* @param {int} len the expected length of the value
* @returns {Boolean} true if value passes test
* @private
*/
function hextest(key, len){
if (!key || typeof(key) !== 'string'){
return false;
}
if (key.length !== len){
return false;
}
let regexp= /^[0-9a-fA-F]*$/i;
return regexp.test(key);
}
/**
* check if the input is a valid Fingerprint
* (Hex string with a length of 40 characters)
* @param {String} value to check
* @returns {Boolean} true if value passes test
*/
export function isFingerprint(value){
return hextest(value, 40);
}
/**
* check if the input is a valid gnupg long ID (Hex string with a length of 16
* characters)
* @param {String} value to check
* @returns {Boolean} true if value passes test
*/
export function isLongId(value){
return hextest(value, 16);
}
/**
* Recursively decodes input (utf8) to output (utf-16; javascript) strings
* @param {Object | Array | String} property
*/
export function decode(property){
if (typeof property === 'string'){
return decodeURIComponent(escape(property));
} else if (Array.isArray(property)){
let res = [];
for (let arr=0; arr < property.length; arr++){
res.push(decode(property[arr]));
}
return res;
} else if (typeof property === 'object'){
const keys = Object.keys(property);
if (keys.length){
let res = {};
for (let k=0; k < keys.length; k++ ){
res[keys[k]] = decode(property[keys[k]]);
}
return res;
}
return property;
}
return property;
}
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