xdl
Version:
The Expo Development Library
207 lines (202 loc) • 7.31 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.AFCClient = void 0;
function _debug() {
const data = _interopRequireDefault(require("debug"));
_debug = function () {
return data;
};
return data;
}
function fs() {
const data = _interopRequireWildcard(require("fs"));
fs = function () {
return data;
};
return data;
}
function path() {
const data = _interopRequireWildcard(require("path"));
path = function () {
return data;
};
return data;
}
function _util() {
const data = require("util");
_util = function () {
return data;
};
return data;
}
function _afc() {
const data = require("../protocol/afc");
_afc = function () {
return data;
};
return data;
}
function _client() {
const data = require("./client");
_client = function () {
return data;
};
return data;
}
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* Copyright (c) 2021 Expo, Inc.
* Copyright (c) 2018 Drifty Co.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
const debug = (0, _debug().default)('expo:xdl:ios:lib:client:afc');
const MAX_OPEN_FILES = 240;
class AFCClient extends _client().ServiceClient {
constructor(socket) {
super(socket, new (_afc().AFCProtocolClient)(socket));
this.socket = socket;
}
async getFileInfo(path) {
debug(`getFileInfo: ${path}`);
const resp = await this.protocolClient.sendMessage({
operation: _afc().AFC_OPS.GET_FILE_INFO,
data: toCString(path)
});
const strings = [];
let currentString = '';
const tokens = resp.data;
tokens.forEach(token => {
if (token === 0) {
strings.push(currentString);
currentString = '';
} else {
currentString += String.fromCharCode(token);
}
});
return strings;
}
async writeFile(fd, data) {
debug(`writeFile: ${Array.prototype.toString.call(fd)}`);
return this.protocolClient.sendMessage({
operation: _afc().AFC_OPS.FILE_WRITE,
data: fd,
payload: data
});
}
async openFile(path) {
debug(`openFile: ${path}`);
// mode + path + null terminator
const data = Buffer.alloc(8 + path.length + 1);
// write mode
data.writeUInt32LE(_afc().AFC_FILE_OPEN_FLAGS.WRONLY, 0);
// then path to file
toCString(path).copy(data, 8);
const resp = await this.protocolClient.sendMessage({
operation: _afc().AFC_OPS.FILE_OPEN,
data
});
if (resp.operation === _afc().AFC_OPS.FILE_OPEN_RES) {
return resp.data;
}
throw new Error(`There was an unknown error opening file ${path}, response: ${Array.prototype.toString.call(resp.data)}`);
}
async closeFile(fd) {
debug(`closeFile fd: ${Array.prototype.toString.call(fd)}`);
return this.protocolClient.sendMessage({
operation: _afc().AFC_OPS.FILE_CLOSE,
data: fd
});
}
async uploadFile(srcPath, destPath) {
debug(`uploadFile: ${srcPath}`);
// read local file and get fd of destination
const [srcFile, destFile] = await Promise.all([await (0, _util().promisify)(fs().readFile)(srcPath), await this.openFile(destPath)]);
try {
await this.writeFile(destFile, srcFile);
await this.closeFile(destFile);
} catch (err) {
await this.closeFile(destFile);
throw err;
}
}
async makeDirectory(path) {
debug(`makeDirectory: ${path}`);
return this.protocolClient.sendMessage({
operation: _afc().AFC_OPS.MAKE_DIR,
data: toCString(path)
});
}
async uploadDirectory(srcPath, destPath) {
debug(`uploadDirectory: ${srcPath}`);
await this.makeDirectory(destPath);
// AFC doesn't seem to give out more than 240 file handles,
// so we delay any requests that would push us over until more open up
let numOpenFiles = 0;
const pendingFileUploads = [];
const _this = this;
return uploadDir(srcPath);
async function uploadDir(dirPath) {
const promises = [];
for (const file of fs().readdirSync(dirPath)) {
const filePath = path().join(dirPath, file);
const remotePath = path().join(destPath, path().relative(srcPath, filePath));
if (fs().lstatSync(filePath).isDirectory()) {
promises.push(_this.makeDirectory(remotePath).then(() => uploadDir(filePath)));
} else {
// Create promise to add to promises array
// this way it can be resolved once a pending upload has finished
let resolve;
let reject;
const promise = new Promise((res, rej) => {
resolve = res;
reject = rej;
});
promises.push(promise);
// wrap upload in a function in case we need to save it for later
const uploadFile = (tries = 0) => {
numOpenFiles++;
_this.uploadFile(filePath, remotePath).then(() => {
resolve();
numOpenFiles--;
const fn = pendingFileUploads.pop();
if (fn) {
fn();
}
}).catch(err => {
// Couldn't get fd for whatever reason, try again
// # of retries is arbitrary and can be adjusted
if (err.status === _afc().AFC_STATUS.NO_RESOURCES && tries < 10) {
debug(`Received NO_RESOURCES from AFC, retrying ${filePath} upload. ${tries}`);
uploadFile(tries++);
} else {
numOpenFiles--;
reject(err);
}
});
};
if (numOpenFiles < MAX_OPEN_FILES) {
uploadFile();
} else {
debug(`numOpenFiles >= ${MAX_OPEN_FILES}, adding to pending queue. Length: ${pendingFileUploads.length}`);
pendingFileUploads.push(uploadFile);
}
}
}
await Promise.all(promises);
}
}
}
exports.AFCClient = AFCClient;
function toCString(s) {
const buf = Buffer.alloc(s.length + 1);
const len = buf.write(s);
buf.writeUInt8(0, len);
return buf;
}
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