mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-30 12:00:28 +00:00
e40a0c07b8
Importing an encrypted wiki ordinarily doesn’t place the password in the password vault on the basis that one ought to be able to import from a file without automatically inheriting its password. Now there’s a configuration option that can be used by the upgrade plugin to cause the password vault to be updated with any password entered by the user. The end result is that the user only needs to enter their password once.
95 lines
2.8 KiB
JavaScript
95 lines
2.8 KiB
JavaScript
/*\
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title: $:/core/modules/utils/crypto.js
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type: application/javascript
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module-type: utils
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Utility functions related to crypto.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Look for an encrypted store area in the text of a TiddlyWiki file
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*/
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exports.extractEncryptedStoreArea = function(text) {
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var encryptedStoreAreaStartMarker = "<pre id=\"encryptedStoreArea\" type=\"text/plain\" style=\"display:none;\">",
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encryptedStoreAreaStart = text.indexOf(encryptedStoreAreaStartMarker);
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if(encryptedStoreAreaStart !== -1) {
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var encryptedStoreAreaEnd = text.indexOf("</pre>",encryptedStoreAreaStart);
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if(encryptedStoreAreaEnd !== -1) {
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return $tw.utils.htmlDecode(text.substring(encryptedStoreAreaStart + encryptedStoreAreaStartMarker.length,encryptedStoreAreaEnd-1));
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}
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}
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return null;
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};
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/*
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Attempt to extract the tiddlers from an encrypted store area using the current password. If the password is not provided then the password in the password store will be used
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*/
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exports.decryptStoreArea = function(encryptedStoreArea,password) {
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var decryptedText = $tw.crypto.decrypt(encryptedStoreArea,password);
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if(decryptedText) {
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var json = JSON.parse(decryptedText),
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tiddlers = [];
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for(var title in json) {
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if(title !== "$:/isEncrypted") {
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tiddlers.push(json[title]);
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}
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}
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return tiddlers;
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} else {
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return null;
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}
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};
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/*
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Attempt to extract the tiddlers from an encrypted store area using the current password. If that fails, the user is prompted for a password.
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encryptedStoreArea: text of the TiddlyWiki encrypted store area
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callback: function(tiddlers) called with the array of decrypted tiddlers
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The following configuration settings are supported:
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$tw.config.usePasswordVault: causes any password entered by the user to also be put into the system password vault
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*/
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exports.decryptStoreAreaInteractive = function(encryptedStoreArea,callback,options) {
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// Try to decrypt with the current password
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var tiddlers = $tw.utils.decryptStoreArea(encryptedStoreArea);
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if(tiddlers) {
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callback(tiddlers);
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} else {
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// Prompt for a new password and keep trying
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$tw.passwordPrompt.createPrompt({
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serviceName: "Enter a password to decrypt the imported TiddlyWiki",
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noUserName: true,
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canCancel: true,
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submitText: "Decrypt",
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callback: function(data) {
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// Exit if the user cancelled
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if(!data) {
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return false;
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}
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// Attempt to decrypt the tiddlers
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var tiddlers = $tw.utils.decryptStoreArea(encryptedStoreArea,data.password);
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if(tiddlers) {
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if($tw.config.usePasswordVault) {
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$tw.crypto.setPassword(data.password);
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}
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callback(tiddlers);
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// Exit and remove the password prompt
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return true;
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} else {
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// We didn't decrypt everything, so continue to prompt for password
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return false;
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}
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}
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});
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}
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};
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})();
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