347 lines
9.4 KiB
JavaScript
347 lines
9.4 KiB
JavaScript
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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import mimeDB from 'mime-db';
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import {Platform} from 'react-native';
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import RNFetchBlob from 'rn-fetch-blob';
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import {DeviceTypes} from '@constants';
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import {isMinimumServerVersion} from '@mm-redux/utils/helpers';
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const EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/;
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const CONTENT_DISPOSITION_REGEXP = /inline;filename=".*\.([a-z]+)";/i;
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const DEFAULT_SERVER_MAX_FILE_SIZE = 50 * 1024 * 1024;// 50 Mb
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export const GENERAL_SUPPORTED_DOCS_FORMAT = [
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'application/json',
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'application/msword',
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'application/pdf',
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'application/rtf',
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'application/vnd.ms-excel',
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'application/vnd.ms-powerpoint',
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'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
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'application/vnd.openxmlformats-officedocument.presentationml.presentation',
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'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
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'application/x-x509-ca-cert',
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'application/xml',
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'text/csv',
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'text/plain',
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];
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const SUPPORTED_DOCS_FORMAT = Platform.select({
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android: GENERAL_SUPPORTED_DOCS_FORMAT,
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ios: [
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...GENERAL_SUPPORTED_DOCS_FORMAT,
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'application/vnd.apple.pages',
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'application/vnd.apple.numbers',
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'application/vnd.apple.keynote',
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],
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});
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const SUPPORTED_VIDEO_FORMAT = Platform.select({
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ios: ['video/mp4', 'video/x-m4v', 'video/quicktime'],
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android: ['video/3gpp', 'video/x-matroska', 'video/mp4', 'video/webm'],
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});
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const types = {};
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const extensions = {};
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export function generateId() {
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// Implementation taken from http://stackoverflow.com/a/2117523
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let id = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx';
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id = id.replace(/[xy]/g, (c) => {
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const r = Math.floor(Math.random() * 16);
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let v;
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if (c === 'x') {
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v = r;
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} else {
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v = (r & 0x3) | 0x8;
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}
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return v.toString(16);
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});
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return 'uid' + id;
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}
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const vectorIconsDir = 'vectorIcons';
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const dirsToExclude = ['Cache.db', 'WebKit', 'WebView', vectorIconsDir];
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async function getDirectorySize(fileStats) {
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if (fileStats?.length) {
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const total = await fileStats.reduce(async (previousPromise, stat) => {
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const value = await previousPromise;
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const exclude = dirsToExclude.find((f) => stat.path.includes(f));
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if (exclude) {
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return value;
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}
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if (stat.type === 'directory') {
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const stats = await RNFetchBlob.fs.lstat(stat.path);
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const dirSize = await getDirectorySize(stats, 0);
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return value + dirSize;
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}
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return value + parseInt(stat.size, 10);
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}, Promise.resolve(0));
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return total;
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}
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return 0;
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}
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export async function getFileCacheSize() {
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const cacheStats = await RNFetchBlob.fs.lstat(RNFetchBlob.fs.dirs.CacheDir);
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const size = await getDirectorySize(cacheStats);
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return size;
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}
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export async function deleteFileCache() {
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const cacheDir = RNFetchBlob.fs.dirs.CacheDir;
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const isCacheDir = await RNFetchBlob.fs.isDir(cacheDir);
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if (isCacheDir) {
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try {
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if (Platform.OS === 'ios') {
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await RNFetchBlob.fs.unlink(cacheDir);
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await RNFetchBlob.fs.mkdir(cacheDir);
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} else {
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const cacheStats = await RNFetchBlob.fs.lstat(RNFetchBlob.fs.dirs.CacheDir);
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if (cacheStats?.length) {
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cacheStats.forEach((stat) => {
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if (!stat.path.includes(vectorIconsDir)) {
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RNFetchBlob.fs.unlink(stat.path);
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}
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});
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}
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}
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} catch (e) {
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// do nothing
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}
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}
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return true;
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}
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export function lookupMimeType(filename) {
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if (!Object.keys(extensions).length) {
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populateMaps();
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}
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const ext = filename.split('.').pop()?.toLowerCase();
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return types[ext] || 'application/octet-stream';
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}
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export function buildFileUploadData(file) {
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const re = /heic/i;
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const uri = file.uri;
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let name = file.fileName || file.name || file.path || file.uri;
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let mimeType = lookupMimeType(name.toLowerCase());
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let extension = name.split('.').pop().replace('.', '');
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if (re.test(extension)) {
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extension = 'JPG';
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name = name.replace(re, 'jpg');
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mimeType = 'image/jpeg';
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}
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return {
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uri,
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name,
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type: mimeType,
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extension,
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};
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}
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export const encodeHeaderURIStringToUTF8 = (string) => {
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return encodeURIComponent(string) + '"; filename*="utf-8\'\'' + encodeURIComponent(string);
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};
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export const getAllowedServerMaxFileSize = (config) => {
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return config && config.MaxFileSize ? parseInt(config.MaxFileSize, 10) : DEFAULT_SERVER_MAX_FILE_SIZE;
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};
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export const getMaxFileCount = (serverVersion) => {
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return isMinimumServerVersion(serverVersion, 6, 0) ? 10 : 5;
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};
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export const isGif = (file) => {
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let mime = file?.mime_type || file?.type || '';
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if (mime && mime.includes(';')) {
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mime = mime.split(';')[0];
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} else if (!mime && file?.name) {
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mime = lookupMimeType(file.name);
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}
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return mime === 'image/gif';
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};
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export const isImage = (file) => (file?.has_preview_image || isGif(file) || file?.type?.startsWith('image/'));
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export const isDocument = (file) => {
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let mime = file?.mime_type || file?.type || '';
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if (mime && mime.includes(';')) {
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mime = mime.split(';')[0];
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} else if (!mime && file?.name) {
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mime = lookupMimeType(file.name);
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}
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return SUPPORTED_DOCS_FORMAT.includes(mime);
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};
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export const isVideo = (file) => {
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let mime = file?.mime_type || file?.type || '';
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if (mime && mime.includes(';')) {
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mime = mime.split(';')[0];
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} else if (!mime && file?.name) {
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mime = lookupMimeType(file.name);
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}
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return SUPPORTED_VIDEO_FORMAT.includes(mime);
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};
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/**
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* Get the default extension for a MIME type.
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*
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* @param {string} type
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* @return {string}
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*/
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export function getExtensionFromMime(type) {
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if (!Object.keys(extensions).length) {
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populateMaps();
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}
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if (!type || typeof type !== 'string') {
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return undefined;
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}
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// TODO: use media-typer
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const match = EXTRACT_TYPE_REGEXP.exec(type);
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// get extensions
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const exts = match && extensions[match[1].toLowerCase()];
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if (!exts || !exts.length) {
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return undefined;
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}
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return exts[0];
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}
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/**
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* Populate the extensions and types maps.
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* @private
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*/
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function populateMaps() {
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// source preference (least -> most)
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const preference = ['nginx', 'apache', undefined, 'iana'];
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Object.keys(mimeDB).forEach((type) => {
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const mime = mimeDB[type];
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const exts = mime.extensions;
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if (!exts || !exts.length) {
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return;
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}
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extensions[type] = exts;
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for (let i = 0; i < exts.length; i++) {
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const extension = exts[i];
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if (types[extension]) {
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const from = preference.indexOf(mimeDB[types[extension]].source);
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const to = preference.indexOf(mime.source);
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if (types[extension] !== 'application/octet-stream' &&
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(from > to || (from === to && types[extension].substr(0, 12) === 'application/'))) {
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continue;
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}
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}
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types[extension] = type;
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}
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});
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}
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export const hashCode = (str) => {
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let hash = 0;
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let i;
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let chr;
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if (!str || str.length === 0) {
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return hash;
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}
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for (i = 0; i < str.length; i++) {
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chr = str.charCodeAt(i);
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hash = ((hash << 5) - hash) + chr;
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hash |= 0; // Convert to 32bit integer
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}
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return hash;
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};
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export function getLocalFilePathFromFile(dir, file) {
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if (dir) {
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if (file?.name) {
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let extension = file.extension;
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let filename = file.name;
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if (!extension) {
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extension = getExtensionFromMime(file.mime_type);
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}
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if (extension && filename.includes(`.${extension}`)) {
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filename = filename.replace(`.${extension}`, '');
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} else {
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const fileParts = file.name.split('.');
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if (fileParts.length > 1) {
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extension = fileParts.pop();
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filename = fileParts.join('.');
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}
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}
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return `${dir}/${filename}-${hashCode(file.id)}.${extension}`;
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} else if (file?.id && file?.extension) {
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return `${dir}/${file.id}.${file.extension}`;
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}
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}
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return undefined;
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}
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export function getLocalPath(file) {
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if (file.localPath) {
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return file.localPath;
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} else if (isVideo(file)) {
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return getLocalFilePathFromFile(DeviceTypes.VIDEOS_PATH, file);
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} else if (isImage(file)) {
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return getLocalFilePathFromFile(DeviceTypes.IMAGES_PATH, file);
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}
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return getLocalFilePathFromFile(DeviceTypes.DOCUMENTS_PATH, file);
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}
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export function getExtensionFromContentDisposition(contentDisposition) {
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const match = CONTENT_DISPOSITION_REGEXP.exec(contentDisposition);
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let extension = match && match[1];
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if (extension) {
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if (!Object.keys(types).length) {
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populateMaps();
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}
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extension = extension.toLowerCase();
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if (types[extension]) {
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return extension;
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}
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return null;
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}
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return null;
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}
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