trilium/docs/backend_api/entities_note_content.js.html
2019-02-20 22:24:51 +01:00

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<h1 class="page-title">Source: entities/note_content.js</h1>
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<pre class="prettyprint source linenums"><code>"use strict";
const Entity = require('./entity');
const protectedSessionService = require('../services/protected_session');
const repository = require('../services/repository');
const dateUtils = require('../services/date_utils');
/**
* This represents a Note which is a central object in the Trilium Notes project.
*
* @property {string} noteContentId - primary key
* @property {string} noteId - reference to owning note
* @property {boolean} isProtected - true if note content is protected
* @property {blob} content - note content - e.g. HTML text for text notes, file payload for files
* @property {string} dateCreated
* @property {string} dateModified
*
* @extends Entity
*/
class NoteContent extends Entity {
static get entityName() {
return "note_contents";
}
static get primaryKeyName() {
return "noteContentId";
}
static get hashedProperties() {
return ["noteContentId", "noteId", "isProtected", "content"];
}
/**
* @param row - object containing database row from "note_contents" table
*/
constructor(row) {
super(row);
this.isProtected = !!this.isProtected;
/* true if content (meaning any kind of potentially encrypted content) is either not encrypted
* or encrypted, but with available protected session (so effectively decrypted) */
this.isContentAvailable = true;
// check if there's noteContentId, otherwise this is a new entity which wasn't encrypted yet
if (this.isProtected &amp;&amp; this.noteContentId) {
this.isContentAvailable = protectedSessionService.isProtectedSessionAvailable();
if (this.isContentAvailable) {
protectedSessionService.decryptNoteContent(this);
}
else {
// saving ciphertexts in case we do want to update protected note outside of protected session
// (which is allowed)
this.contentCipherText = this.content;
this.content = "";
}
}
}
/**
* @returns {Promise&lt;Note>}
*/
async getNote() {
return await repository.getNote(this.noteId);
}
beforeSaving() {
if (!this.dateCreated) {
this.dateCreated = dateUtils.nowDate();
}
super.beforeSaving();
if (this.isChanged) {
this.dateModified = dateUtils.nowDate();
}
}
// cannot be static!
updatePojo(pojo) {
if (pojo.isProtected) {
if (this.isContentAvailable) {
protectedSessionService.encryptNoteContent(pojo);
}
else {
// updating protected note outside of protected session means we will keep original ciphertext
pojo.content = pojo.contentCipherText;
}
}
delete pojo.isContentAvailable;
delete pojo.contentCipherText;
}
}
module.exports = NoteContent;</code></pre>
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