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			348 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			348 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| const sql = require('./sql');
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| const options = require('./options');
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| const utils = require('./utils');
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| const sync_table = require('./sync_table');
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| const labels = require('./labels');
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| const protected_session = require('./protected_session');
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| 
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| async function createNewNote(parentNoteId, noteOpts, dataKey, sourceId) {
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|     const noteId = utils.newNoteId();
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|     const branchId = utils.newBranchId();
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| 
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|     let newNotePos = 0;
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| 
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|     if (noteOpts.target === 'into') {
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|         const maxNotePos = await sql.getValue('SELECT MAX(notePosition) FROM branches WHERE parentNoteId = ? AND isDeleted = 0', [parentNoteId]);
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| 
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|         newNotePos = maxNotePos === null ? 0 : maxNotePos + 1;
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|     }
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|     else if (noteOpts.target === 'after') {
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|         const afterNote = await sql.getRow('SELECT notePosition FROM branches WHERE branchId = ?', [noteOpts.target_branchId]);
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| 
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|         newNotePos = afterNote.notePosition + 1;
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| 
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|         // not updating dateModified to avoig having to sync whole rows
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|         await sql.execute('UPDATE branches SET notePosition = notePosition + 1 WHERE parentNoteId = ? AND notePosition > ? AND isDeleted = 0',
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|             [parentNoteId, afterNote.notePosition]);
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| 
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|         await sync_table.addNoteReorderingSync(parentNoteId, sourceId);
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|     }
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|     else {
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|         throw new Error('Unknown target: ' + noteOpts.target);
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|     }
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| 
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|     if (parentNoteId !== 'root') {
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|         const parent = await sql.getRow("SELECT * FROM notes WHERE noteId = ?", [parentNoteId]);
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| 
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|         if (!noteOpts.type) {
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|             noteOpts.type = parent.type;
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|         }
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| 
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|         if (!noteOpts.mime) {
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|             noteOpts.mime = parent.mime;
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|         }
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|     }
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| 
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|     const now = utils.nowDate();
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| 
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|     const note = {
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|         noteId: noteId,
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|         title: noteOpts.title,
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|         content: noteOpts.content ? noteOpts.content : '',
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|         isProtected: noteOpts.isProtected,
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|         type: noteOpts.type ? noteOpts.type : 'text',
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|         mime: noteOpts.mime ? noteOpts.mime : 'text/html',
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|         dateCreated: now,
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|         dateModified: now
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|     };
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| 
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|     if (note.isProtected) {
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|         protected_session.encryptNote(dataKey, note);
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|     }
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| 
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|     await sql.insert("notes", note);
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| 
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|     await sync_table.addNoteSync(noteId, sourceId);
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| 
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|     await sql.insert("branches", {
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|         branchId: branchId,
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|         noteId: noteId,
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|         parentNoteId: parentNoteId,
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|         notePosition: newNotePos,
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|         isExpanded: 0,
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|         dateModified: now,
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|         isDeleted: 0
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|     });
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| 
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|     await sync_table.addBranchSync(branchId, sourceId);
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| 
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|     return {
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|         noteId,
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|         branchId,
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|         note
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|     };
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| }
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| 
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| async function createNote(parentNoteId, title, content = "", extraOptions = {}) {
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|     if (!parentNoteId) throw new Error("Empty parentNoteId");
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|     if (!title) throw new Error("Empty title");
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| 
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|     const note = {
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|         title: title,
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|         content: extraOptions.json ? JSON.stringify(content, null, '\t') : content,
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|         target: 'into',
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|         isProtected: extraOptions.isProtected !== undefined ? extraOptions.isProtected : false,
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|         type: extraOptions.type,
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|         mime: extraOptions.mime
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|     };
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| 
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|     if (extraOptions.json && !note.type) {
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|         note.type = "code";
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|         note.mime = "application/json";
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|     }
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| 
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|     if (!note.type) {
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|         note.type = "text";
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|         note.mime = "text/html";
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|     }
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| 
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|     const {noteId} = await createNewNote(parentNoteId, note, extraOptions.dataKey, extraOptions.sourceId);
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| 
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|     if (extraOptions.labels) {
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|         for (const attrName in extraOptions.labels) {
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|             await labels.createLabel(noteId, attrName, extraOptions.labels[attrName]);
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|         }
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|     }
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| 
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|     return noteId;
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| }
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| 
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| async function protectNoteRecursively(noteId, dataKey, protect, sourceId) {
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|     const note = await sql.getRow("SELECT * FROM notes WHERE noteId = ?", [noteId]);
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| 
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|     await protectNote(note, dataKey, protect, sourceId);
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| 
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|     const children = await sql.getColumn("SELECT noteId FROM branches WHERE parentNoteId = ? AND isDeleted = 0", [noteId]);
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| 
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|     for (const childNoteId of children) {
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|         await protectNoteRecursively(childNoteId, dataKey, protect, sourceId);
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|     }
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| }
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| 
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| async function protectNote(note, dataKey, protect, sourceId) {
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|     let changed = false;
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| 
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|     if (protect && !note.isProtected) {
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|         protected_session.encryptNote(dataKey, note);
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| 
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|         note.isProtected = true;
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| 
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|         changed = true;
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|     }
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|     else if (!protect && note.isProtected) {
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|         protected_session.decryptNote(dataKey, note);
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| 
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|         note.isProtected = false;
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| 
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|         changed = true;
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|     }
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| 
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|     if (changed) {
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|         await sql.execute("UPDATE notes SET title = ?, content = ?, isProtected = ? WHERE noteId = ?",
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|             [note.title, note.content, note.isProtected, note.noteId]);
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| 
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|         await sync_table.addNoteSync(note.noteId, sourceId);
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|     }
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| 
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|     await protectNoteRevisions(note.noteId, dataKey, protect, sourceId);
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| }
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| 
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| async function protectNoteRevisions(noteId, dataKey, protect, sourceId) {
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|     const revisionsToChange = await sql.getRows("SELECT * FROM note_revisions WHERE noteId = ? AND isProtected != ?", [noteId, protect]);
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| 
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|     for (const revision of revisionsToChange) {
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|         if (protect) {
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|             protected_session.encryptNoteRevision(dataKey, revision);
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| 
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|             revision.isProtected = true;
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|         }
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|         else {
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|             protected_session.decryptNoteRevision(dataKey, revision);
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| 
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|             revision.isProtected = false;
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|         }
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| 
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|         await sql.execute("UPDATE note_revisions SET title = ?, content = ?, isProtected = ? WHERE noteRevisionId = ?",
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|             [revision.title, revision.content, revision.isProtected, revision.noteRevisionId]);
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| 
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|         await sync_table.addNoteRevisionSync(revision.noteRevisionId, sourceId);
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|     }
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| }
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| 
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| async function saveNoteRevision(noteId, dataKey, sourceId, nowStr) {
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|     const oldNote = await sql.getRow("SELECT * FROM notes WHERE noteId = ?", [noteId]);
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| 
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|     if (oldNote.type === 'file') {
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|         return;
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|     }
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| 
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|     if (oldNote.isProtected) {
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|         protected_session.decryptNote(dataKey, oldNote);
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| 
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|         oldNote.isProtected = false;
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|     }
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| 
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|     const newNoteRevisionId = utils.newNoteRevisionId();
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| 
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|     await sql.insert('note_revisions', {
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|         noteRevisionId: newNoteRevisionId,
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|         noteId: noteId,
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|         // title and text should be decrypted now
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|         title: oldNote.title,
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|         content: oldNote.content,
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|         isProtected: 0, // will be fixed in the protectNoteRevisions() call
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|         dateModifiedFrom: oldNote.dateModified,
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|         dateModifiedTo: nowStr
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|     });
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| 
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|     await sync_table.addNoteRevisionSync(newNoteRevisionId, sourceId);
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| }
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| 
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| async function saveNoteImages(noteId, noteText, sourceId) {
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|     const existingNoteImages = await sql.getRows("SELECT * FROM note_images WHERE noteId = ?", [noteId]);
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|     const foundImageIds = [];
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|     const now = utils.nowDate();
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|     const re = /src="\/api\/images\/([a-zA-Z0-9]+)\//g;
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|     let match;
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| 
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|     while (match = re.exec(noteText)) {
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|         const imageId = match[1];
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|         const existingNoteImage = existingNoteImages.find(ni => ni.imageId === imageId);
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| 
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|         if (!existingNoteImage) {
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|             const noteImageId = utils.newNoteImageId();
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| 
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|             await sql.insert("note_images", {
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|                 noteImageId: noteImageId,
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|                 noteId: noteId,
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|                 imageId: imageId,
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|                 isDeleted: 0,
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|                 dateModified: now,
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|                 dateCreated: now
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|             });
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| 
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|             await sync_table.addNoteImageSync(noteImageId, sourceId);
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|         }
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|         else if (existingNoteImage.isDeleted) {
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|             await sql.execute("UPDATE note_images SET isDeleted = 0, dateModified = ? WHERE noteImageId = ?",
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|                 [now, existingNoteImage.noteImageId]);
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| 
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|             await sync_table.addNoteImageSync(existingNoteImage.noteImageId, sourceId);
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|         }
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|         // else we don't need to do anything
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| 
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|         foundImageIds.push(imageId);
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|     }
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| 
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|     // marking note images as deleted if they are not present on the page anymore
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|     const unusedNoteImages = existingNoteImages.filter(ni => !foundImageIds.includes(ni.imageId));
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| 
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|     for (const unusedNoteImage of unusedNoteImages) {
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|         await sql.execute("UPDATE note_images SET isDeleted = 1, dateModified = ? WHERE noteImageId = ?",
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|             [now, unusedNoteImage.noteImageId]);
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| 
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|         await sync_table.addNoteImageSync(unusedNoteImage.noteImageId, sourceId);
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|     }
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| }
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| 
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| async function loadFile(noteId, newNote, dataKey) {
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|     const oldNote = await sql.getRow("SELECT * FROM notes WHERE noteId = ?", [noteId]);
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| 
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|     if (oldNote.isProtected) {
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|         await protected_session.decryptNote(dataKey, oldNote);
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|     }
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| 
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|     newNote.detail.content = oldNote.content;
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| }
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| 
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| async function updateNote(noteId, newNote, dataKey, sourceId) {
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|     if (newNote.detail.type === 'file') {
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|         await loadFile(noteId, newNote, dataKey);
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|     }
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| 
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|     if (newNote.detail.isProtected) {
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|         await protected_session.encryptNote(dataKey, newNote.detail);
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|     }
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| 
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|     const labelsMap = await labels.getNoteLabelMap(noteId);
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| 
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|     const now = new Date();
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|     const nowStr = utils.nowDate();
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| 
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|     const noteRevisionSnapshotTimeInterval = parseInt(await options.getOption('note_revision_snapshot_time_interval'));
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| 
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|     const revisionCutoff = utils.dateStr(new Date(now.getTime() - noteRevisionSnapshotTimeInterval * 1000));
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| 
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|     const existingnoteRevisionId = await sql.getValue(
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|         "SELECT noteRevisionId FROM note_revisions WHERE noteId = ? AND dateModifiedTo >= ?", [noteId, revisionCutoff]);
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| 
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|     await sql.doInTransaction(async () => {
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|         const msSinceDateCreated = now.getTime() - utils.parseDateTime(newNote.detail.dateCreated).getTime();
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| 
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|         if (labelsMap.disable_versioning !== 'true'
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|             && !existingnoteRevisionId
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|             && msSinceDateCreated >= noteRevisionSnapshotTimeInterval * 1000) {
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| 
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|             await saveNoteRevision(noteId, dataKey, sourceId, nowStr);
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|         }
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| 
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|         await saveNoteImages(noteId, newNote.detail.content, sourceId);
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| 
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|         await protectNoteRevisions(noteId, dataKey, newNote.detail.isProtected);
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| 
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|         await sql.execute("UPDATE notes SET title = ?, content = ?, isProtected = ?, dateModified = ? WHERE noteId = ?", [
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|             newNote.detail.title,
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|             newNote.detail.content,
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|             newNote.detail.isProtected,
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|             nowStr,
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|             noteId]);
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| 
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|         await sync_table.addNoteSync(noteId, sourceId);
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|     });
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| }
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| 
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| async function deleteNote(branchId, sourceId) {
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|     const branch = await sql.getRowOrNull("SELECT * FROM branches WHERE branchId = ?", [branchId]);
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| 
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|     if (!branch || branch.isDeleted === 1) {
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|         return;
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|     }
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| 
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|     const now = utils.nowDate();
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| 
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|     await sql.execute("UPDATE branches SET isDeleted = 1, dateModified = ? WHERE branchId = ?", [now, branchId]);
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|     await sync_table.addBranchSync(branchId, sourceId);
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| 
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|     const noteId = await sql.getValue("SELECT noteId FROM branches WHERE branchId = ?", [branchId]);
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| 
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|     const notDeletedBranchsCount = await sql.getValue("SELECT COUNT(*) FROM branches WHERE noteId = ? AND isDeleted = 0", [noteId]);
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| 
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|     if (!notDeletedBranchsCount) {
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|         await sql.execute("UPDATE notes SET isDeleted = 1, dateModified = ? WHERE noteId = ?", [now, noteId]);
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|         await sync_table.addNoteSync(noteId, sourceId);
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| 
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|         const children = await sql.getRows("SELECT branchId FROM branches WHERE parentNoteId = ? AND isDeleted = 0", [noteId]);
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| 
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|         for (const child of children) {
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|             await deleteNote(child.branchId, sourceId);
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|         }
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|     }
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| }
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| 
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| module.exports = {
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|     createNewNote,
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|     createNote,
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|     updateNote,
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|     deleteNote,
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|     protectNoteRecursively
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| }; |