Improve drive file operation

Resolve #3789
Resolve #3790

src/server/api/endpoints/admin/drive/show-file.ts

@@ -0,0 +1,28 @@
+import $ from 'cafy';
+import ID, { transform } from '../../../../../misc/cafy-id';
+import define from '../../../define';
+import DriveFile from '../../../../../models/drive-file';
+
+export const meta = {
+	requireCredential: true,
+	requireModerator: true,
+
+	params: {
+		fileId: {
+			validator: $.type(ID),
+			transform: transform,
+		},
+	}
+};
+
+export default define(meta, (ps, me) => new Promise(async (res, rej) => {
+	const file = await DriveFile.findOne({
+		_id: ps.fileId
+	});
+
+	if (file == null) {
+		return rej('file not found');
+	}
+
+	res(file);
+}));

src/server/api/endpoints/drive/files/show.ts

@@ -1,6 +1,9 @@
-import $ from 'cafy'; import ID, { transform } from '../../../../../misc/cafy-id';
-import DriveFile, { pack } from '../../../../../models/drive-file';
+import $ from 'cafy';
+import * as mongo from 'mongodb';
+import ID, { transform } from '../../../../../misc/cafy-id';
+import DriveFile, { pack, IDriveFile } from '../../../../../models/drive-file';
 import define from '../../../define';
+import config from '../../../../../config';
 
 export const meta = {
 	stability: 'stable',
@@ -16,24 +19,62 @@ export const meta = {
 
 	params: {
 		fileId: {
-			validator: $.type(ID),
+			validator: $.type(ID).optional,
 			transform: transform,
 			desc: {
 				'ja-JP': '対象のファイルID',
 				'en-US': 'Target file ID'
 			}
+		},
+
+		url: {
+			validator: $.str.optional,
+			desc: {
+				'ja-JP': '対象のファイルのURL',
+				'en-US': 'Target file URL'
+			}
 		}
 	}
 };
 
 export default define(meta, (ps, user) => new Promise(async (res, rej) => {
-	// Fetch file
-	const file = await DriveFile
-		.findOne({
+	let file: IDriveFile;
+
+	if (ps.fileId) {
+		file = await DriveFile.findOne({
 			_id: ps.fileId,
-			'metadata.userId': user._id,
 			'metadata.deletedAt': { $exists: false }
 		});
+	} else if (ps.url) {
+		const isInternalStorageUrl = ps.url.startsWith(config.drive_url);
+		if (isInternalStorageUrl) {
+			// Extract file if from url
+			// e.g.
+			// http://misskey.local/files/foo?original=bar --> foo
+			const fileId = new mongo.ObjectID(ps.url.replace(config.drive_url, '').replace(/\?(.*)$/, '').replace(/\//g, ''));
+			file = await DriveFile.findOne({
+				_id: fileId,
+				'metadata.deletedAt': { $exists: false }
+			});
+		} else {
+			file = await DriveFile.findOne({
+				$or: [{
+					'metadata.url': ps.url
+				}, {
+					'metadata.webpublicUrl': ps.url
+				}, {
+					'metadata.thumbnailUrl': ps.url
+				}],
+				'metadata.deletedAt': { $exists: false }
+			});
+		}
+	} else {
+		return rej('fileId or url required');
+	}
+
+	if (!user.isAdmin && !user.isModerator && !file.metadata.userId.equals(user._id)) {
+		return rej('access denied');
+	}
 
 	if (file === null) {
 		return rej('file-not-found');