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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Inject, Injectable } from '@nestjs/common';
import { DataSource, In, Not } from 'typeorm';
import { DI } from '@/di-symbols.js';
import {
type NotesRepository,
MiPage,
type PagesRepository,
MiDriveFile,
type UsersRepository,
MiNote,
} from '@/models/_.js';
import { bindThis } from '@/decorators.js';
import { RoleService } from '@/core/RoleService.js';
import { IdService } from '@/core/IdService.js';
import type { MiUser } from '@/models/User.js';
import { IdentifiableError } from '@/misc/identifiable-error.js';
import { ModerationLogService } from '@/core/ModerationLogService.js';
export interface PageBody {
title: string;
name: string;
summary: string | null;
content: Array<Record<string, any>>;
variables: Array<Record<string, any>>;
script: string;
eyeCatchingImage?: MiDriveFile | null;
font: string;
alignCenter: boolean;
hideTitleWhenPinned: boolean;
}
@Injectable()
export class PageService {
constructor(
@Inject(DI.db)
private db: DataSource,
@Inject(DI.pagesRepository)
private pagesRepository: PagesRepository,
@Inject(DI.notesRepository)
private notesRepository: NotesRepository,
@Inject(DI.usersRepository)
private usersRepository: UsersRepository,
private roleService: RoleService,
private moderationLogService: ModerationLogService,
private idService: IdService,
) {
}
@bindThis
public async create(
me: MiUser,
body: PageBody,
): Promise<MiPage> {
await this.pagesRepository.findBy({
userId: me.id,
name: body.name,
}).then(result => {
if (result.length > 0) {
throw new IdentifiableError('1a79e38e-3d83-4423-845b-a9d83ff93b61');
}
});
const page = await this.pagesRepository.insertOne(new MiPage({
id: this.idService.gen(),
updatedAt: new Date(),
title: body.title,
name: body.name,
summary: body.summary,
content: body.content,
variables: body.variables,
script: body.script,
eyeCatchingImageId: body.eyeCatchingImage ? body.eyeCatchingImage.id : null,
userId: me.id,
visibility: 'public',
alignCenter: body.alignCenter,
hideTitleWhenPinned: body.hideTitleWhenPinned,
font: body.font,
}));
const referencedNotes = this.collectReferencedNotes(page.content);
if (referencedNotes.length > 0) {
await this.notesRepository.increment({ id: In(referencedNotes) }, 'pageCount', 1);
}
return page;
}
@bindThis
public async update(
me: MiUser,
pageId: MiPage['id'],
body: Partial<PageBody>,
): Promise<void> {
await this.db.transaction(async (transaction) => {
const page = await transaction.findOne(MiPage, {
where: {
id: pageId,
},
lock: { mode: 'for_no_key_update' },
});
if (page == null) {
throw new IdentifiableError('66aefd3c-fdb2-4a71-85ae-cc18bea85d3f');
}
if (page.userId !== me.id) {
throw new IdentifiableError('d0017699-8256-46f1-aed4-bc03bed73616');
}
if (body.name != null) {
await transaction.findBy(MiPage, {
id: Not(pageId),
userId: me.id,
name: body.name,
}).then(result => {
if (result.length > 0) {
throw new IdentifiableError('d05bfe24-24b6-4ea2-a3ec-87cc9bf4daa4');
}
});
}
await transaction.update(MiPage, page.id, {
updatedAt: new Date(),
title: body.title,
name: body.name,
summary: body.summary === undefined ? page.summary : body.summary,
content: body.content,
variables: body.variables,
script: body.script,
alignCenter: body.alignCenter,
hideTitleWhenPinned: body.hideTitleWhenPinned,
font: body.font,
eyeCatchingImageId: body.eyeCatchingImage === undefined ? undefined : (body.eyeCatchingImage?.id ?? null),
});
console.log("page.content", page.content);
if (body.content != null) {
const beforeReferencedNotes = this.collectReferencedNotes(page.content);
const afterReferencedNotes = this.collectReferencedNotes(body.content);
const removedNotes = beforeReferencedNotes.filter(noteId => !afterReferencedNotes.includes(noteId));
const addedNotes = afterReferencedNotes.filter(noteId => !beforeReferencedNotes.includes(noteId));
if (removedNotes.length > 0) {
await transaction.decrement(MiNote, { id: In(removedNotes) }, 'pageCount', 1);
}
if (addedNotes.length > 0) {
await transaction.increment(MiNote, { id: In(addedNotes) }, 'pageCount', 1);
}
}
});
}
@bindThis
public async delete(me: MiUser, pageId: MiPage['id']): Promise<void> {
await this.db.transaction(async (transaction) => {
const page = await transaction.findOne(MiPage, {
where: {
id: pageId,
},
lock: { mode: 'pessimistic_write' }, // same lock level as DELETE
});
if (page == null) {
throw new IdentifiableError('66aefd3c-fdb2-4a71-85ae-cc18bea85d3f');
}
if (!await this.roleService.isModerator(me) && page.userId !== me.id) {
throw new IdentifiableError('d0017699-8256-46f1-aed4-bc03bed73616');
}
await transaction.delete(MiPage, page.id);
if (page.userId !== me.id) {
const user = await this.usersRepository.findOneByOrFail({ id: page.userId });
this.moderationLogService.log(me, 'deletePage', {
pageId: page.id,
pageUserId: page.userId,
pageUserUsername: user.username,
page,
});
}
const referencedNotes = this.collectReferencedNotes(page.content);
if (referencedNotes.length > 0) {
await transaction.decrement(MiNote, { id: In(referencedNotes) }, 'pageCount', 1);
}
});
}
collectReferencedNotes(content: MiPage['content']): string[] {
const referencingNotes = new Set<string>();
const recursiveCollect = (content: unknown[]) => {
for (const contentElement of content) {
if (typeof contentElement === 'object'
&& contentElement !== null
&& 'type' in contentElement) {
if (contentElement.type === 'note'
&& 'note' in contentElement
&& typeof contentElement.note === 'string') {
referencingNotes.add(contentElement.note);
}
if (contentElement.type === 'section'
&& 'children' in contentElement
&& Array.isArray(contentElement.children)) {
recursiveCollect(contentElement.children);
}
}
}
};
recursiveCollect(content);
return [...referencingNotes];
}
}
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