server-ts: Convert routes/api/revisions

src/routes/api/revisions.ts

@@ -0,0 +1,212 @@
+"use strict";
+
+import beccaService = require('../../becca/becca_service');
+import revisionService = require('../../services/revisions');
+import utils = require('../../services/utils');
+import sql = require('../../services/sql');
+import cls = require('../../services/cls');
+import path = require('path');
+import becca = require('../../becca/becca');
+import blobService = require('../../services/blob');
+import eraseService = require("../../services/erase");
+import { Request, Response } from 'express';
+import BRevision = require('../../becca/entities/brevision');
+import BNote = require('../../becca/entities/bnote');
+import { NotePojo } from '../../becca/becca-interface';
+
+interface NotePath {
+    noteId: string;
+    branchId?: string;
+    title: string;
+    notePath: string[];
+    path: string;
+}
+
+interface NotePojoWithNotePath extends NotePojo {
+    notePath?: string[] | null;
+}
+
+function getRevisionBlob(req: Request) {
+    const preview = req.query.preview === 'true';
+
+    return blobService.getBlobPojo('revisions', req.params.revisionId, { preview });
+}
+
+function getRevisions(req: Request) {
+    return becca.getRevisionsFromQuery(`
+        SELECT revisions.*,
+               LENGTH(blobs.content) AS contentLength
+        FROM revisions
+        JOIN blobs ON revisions.blobId = blobs.blobId 
+        WHERE revisions.noteId = ?
+        ORDER BY revisions.utcDateCreated DESC`, [req.params.noteId]);
+}
+
+function getRevision(req: Request) {
+    const revision = becca.getRevisionOrThrow(req.params.revisionId);
+
+    if (revision.type === 'file') {
+        if (revision.hasStringContent()) {
+            revision.content = (revision.getContent() as string).substr(0, 10000);
+        }
+    }
+    else {
+        revision.content = revision.getContent();
+
+        if (revision.content && revision.type === 'image') {
+            revision.content = revision.content.toString('base64');
+        }
+    }
+
+    return revision;
+}
+
+function getRevisionFilename(revision: BRevision) {
+    let filename = utils.formatDownloadTitle(revision.title, revision.type, revision.mime);
+
+    const extension = path.extname(filename);
+    const date = revision.dateCreated
+        .substr(0, 19)
+        .replace(' ', '_')
+        .replace(/[^0-9_]/g, '');
+
+    if (extension) {
+        filename = `${filename.substr(0, filename.length - extension.length)}-${date}${extension}`;
+    }
+    else {
+        filename += `-${date}`;
+    }
+
+    return filename;
+}
+
+function downloadRevision(req: Request, res: Response) {
+    const revision = becca.getRevisionOrThrow(req.params.revisionId);
+
+    if (!revision.isContentAvailable()) {
+        return res.setHeader("Content-Type", "text/plain")
+            .status(401)
+            .send("Protected session not available");
+    }
+
+    const filename = getRevisionFilename(revision);
+
+    res.setHeader('Content-Disposition', utils.getContentDisposition(filename));
+    res.setHeader('Content-Type', revision.mime);
+
+    res.send(revision.getContent());
+}
+
+function eraseAllRevisions(req: Request) {
+    const revisionIdsToErase = sql.getColumn<string>('SELECT revisionId FROM revisions WHERE noteId = ?',
+        [req.params.noteId]);
+
+    eraseService.eraseRevisions(revisionIdsToErase);
+}
+
+function eraseRevision(req: Request) {
+    eraseService.eraseRevisions([req.params.revisionId]);
+}
+
+function restoreRevision(req: Request) {
+    const revision = becca.getRevision(req.params.revisionId);
+
+    if (revision) {
+        const note = revision.getNote();
+
+        sql.transactional(() => {
+            note.saveRevision();
+
+            for (const oldNoteAttachment of note.getAttachments()) {
+                oldNoteAttachment.markAsDeleted();
+            }
+
+            let revisionContent = revision.getContent();
+
+            for (const revisionAttachment of revision.getAttachments()) {
+                const noteAttachment = revisionAttachment.copy();
+                noteAttachment.ownerId = note.noteId;
+                noteAttachment.setContent(revisionAttachment.getContent(), { forceSave: true });
+
+                // content is rewritten to point to the restored revision attachments
+                if (typeof revisionContent === "string") {
+                    revisionContent = revisionContent.replaceAll(`attachments/${revisionAttachment.attachmentId}`, `attachments/${noteAttachment.attachmentId}`);
+                }
+            }
+
+            note.title = revision.title;
+            note.setContent(revisionContent, { forceSave: true });
+        });
+    }
+}
+
+function getEditedNotesOnDate(req: Request) {
+    const noteIds = sql.getColumn<string>(`
+        SELECT notes.*
+        FROM notes
+        WHERE noteId IN (
+                SELECT noteId FROM notes 
+                WHERE notes.dateCreated LIKE :date
+                   OR notes.dateModified LIKE :date
+            UNION ALL
+                SELECT noteId FROM revisions
+                WHERE revisions.dateLastEdited LIKE :date
+        )
+        ORDER BY isDeleted
+        LIMIT 50`, {date: `${req.params.date}%`});
+
+    let notes = becca.getNotes(noteIds, true);
+
+    // Narrow down the results if a note is hoisted, similar to "Jump to note".
+    const hoistedNoteId = cls.getHoistedNoteId();
+    if (hoistedNoteId !== 'root') {
+        notes = notes.filter(note => note.hasAncestor(hoistedNoteId));
+    }
+
+    return notes.map(note => {
+        const notePath = getNotePathData(note);
+
+        const notePojo: NotePojoWithNotePath = note.getPojo();
+        notePojo.notePath = notePath ? notePath.notePath : null;
+
+        return notePojo;
+    });
+
+}
+
+function getNotePathData(note: BNote): NotePath | undefined {
+    const retPath = note.getBestNotePath();
+
+    if (retPath) {
+        const noteTitle = beccaService.getNoteTitleForPath(retPath);
+
+        let branchId;
+
+        if (note.isRoot()) {
+            branchId = 'none_root';
+        }
+        else {
+            const parentNote = note.parents[0];
+            branchId = becca.getBranchFromChildAndParent(note.noteId, parentNote.noteId)?.branchId;
+        }
+
+        return {
+            noteId: note.noteId,
+            branchId: branchId,
+            title: noteTitle,
+            notePath: retPath,
+            path: retPath.join('/')
+        };
+    }
+}
+
+export = {
+    getRevisionBlob,
+    getRevisions,
+    getRevision,
+    downloadRevision,
+    getEditedNotesOnDate,
+    eraseAllRevisions,
+    eraseRevision,
+    restoreRevision
+};