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onedrive-api.js
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onedrive-api.js
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const { shim } = require('lib/shim.js');
const { stringify } = require('query-string');
const { time } = require('lib/time-utils.js');
const { Logger } = require('lib/logger.js');
const { _ } = require('lib/locale.js');
class OneDriveApi {
// `isPublic` is to tell OneDrive whether the application is a "public" one (Mobile and desktop
// apps are considered "public"), in which case the secret should not be sent to the API.
// In practice the React Native app is public, and the Node one is not because we
// use a local server for the OAuth dance.
constructor(clientId, clientSecret, isPublic) {
this.clientId_ = clientId;
this.clientSecret_ = clientSecret;
this.auth_ = null;
this.isPublic_ = isPublic;
this.listeners_ = {
authRefreshed: [],
};
this.logger_ = new Logger();
}
setLogger(l) {
this.logger_ = l;
}
logger() {
return this.logger_;
}
isPublic() {
return this.isPublic_;
}
dispatch(eventName, param) {
let ls = this.listeners_[eventName];
for (let i = 0; i < ls.length; i++) {
ls[i](param);
}
}
on(eventName, callback) {
this.listeners_[eventName].push(callback);
}
tokenBaseUrl() {
return 'https://login.microsoftonline.com/common/oauth2/v2.0/token';
}
nativeClientRedirectUrl() {
return 'https://login.microsoftonline.com/common/oauth2/nativeclient';
}
auth() {
return this.auth_;
}
setAuth(auth) {
this.auth_ = auth;
this.dispatch('authRefreshed', this.auth());
}
token() {
return this.auth_ ? this.auth_.access_token : null;
}
clientId() {
return this.clientId_;
}
clientSecret() {
return this.clientSecret_;
}
async appDirectory() {
let r = await this.execJson('GET', '/drive/special/approot');
return `${r.parentReference.path}/${r.name}`;
}
authCodeUrl(redirectUri) {
let query = {
client_id: this.clientId_,
scope: 'files.readwrite offline_access',
response_type: 'code',
redirect_uri: redirectUri,
};
return `https://login.microsoftonline.com/common/oauth2/v2.0/authorize?${stringify(query)}`;
}
async execTokenRequest(code, redirectUri) {
let body = new shim.FormData();
body.append('client_id', this.clientId());
if (!this.isPublic()) body.append('client_secret', this.clientSecret());
body.append('code', code);
body.append('redirect_uri', redirectUri);
body.append('grant_type', 'authorization_code');
const r = await shim.fetch(this.tokenBaseUrl(), {
method: 'POST',
body: body,
});
if (!r.ok) {
const text = await r.text();
throw new Error(`Could not retrieve auth code: ${r.status}: ${r.statusText}: ${text}`);
}
try {
const json = await r.json();
this.setAuth(json);
} catch (error) {
this.setAuth(null);
const text = await r.text();
error.message += `: ${text}`;
throw error;
}
}
oneDriveErrorResponseToError(errorResponse) {
if (!errorResponse) return new Error('Undefined error');
if (errorResponse.error) {
let e = errorResponse.error;
let output = new Error(e.message);
if (e.code) output.code = e.code;
if (e.innerError) output.innerError = e.innerError;
return output;
} else {
return new Error(JSON.stringify(errorResponse));
}
}
async exec(method, path, query = null, data = null, options = null) {
if (!path) throw new Error('Path is required');
method = method.toUpperCase();
if (!options) options = {};
if (!options.headers) options.headers = {};
if (!options.target) options.target = 'string';
if (method != 'GET') {
options.method = method;
}
if (method == 'PATCH' || method == 'POST') {
options.headers['Content-Type'] = 'application/json';
if (data) data = JSON.stringify(data);
}
let url = path;
// In general, `path` contains a path relative to the base URL, but in some
// cases the full URL is provided (for example, when it's a URL that was
// retrieved from the API).
if (url.indexOf('https://') !== 0) url = `https://graph.microsoft.com/v1.0${path}`;
if (query) {
url += url.indexOf('?') < 0 ? '?' : '&';
url += stringify(query);
}
if (data) options.body = data;
options.timeout = 1000 * 60 * 5; // in ms
for (let i = 0; i < 5; i++) {
options.headers['Authorization'] = `bearer ${this.token()}`;
let response = null;
try {
if (options.source == 'file' && (method == 'POST' || method == 'PUT')) {
response = await shim.uploadBlob(url, options);
} else if (options.target == 'string') {
response = await shim.fetch(url, options);
} else {
// file
response = await shim.fetchBlob(url, options);
}
} catch (error) {
this.logger().error('Got unhandled error:', error ? error.code : '', error ? error.message : '', error);
throw error;
}
if (!response.ok) {
let errorResponseText = await response.text();
let errorResponse = null;
try {
errorResponse = JSON.parse(errorResponseText); // await response.json();
} catch (error) {
error.message = `OneDriveApi::exec: Cannot parse JSON error: ${errorResponseText} ${error.message}`;
throw error;
}
let error = this.oneDriveErrorResponseToError(errorResponse);
if (error.code == 'InvalidAuthenticationToken' || error.code == 'unauthenticated') {
this.logger().info('Token expired: refreshing...');
await this.refreshAccessToken();
continue;
} else if (error && ((error.error && error.error.code == 'generalException') || error.code == 'generalException' || error.code == 'EAGAIN')) {
// Rare error (one Google hit) - I guess the request can be repeated
// { error:
// { code: 'generalException',
// message: 'An error occurred in the data store.',
// innerError:
// { 'request-id': 'b4310552-c18a-45b1-bde1-68e2c2345eef',
// date: '2017-06-29T00:15:50' } } }
// { FetchError: request to https://graph.microsoft.com/v1.0/drive/root:/Apps/Joplin/.sync/7ee5dc04afcb414aa7c684bfc1edba8b.md_1499352102856 failed, reason: connect EAGAIN 65.52.64.250:443 - Local (0.0.0.0:54374)
// name: 'FetchError',
// message: 'request to https://graph.microsoft.com/v1.0/drive/root:/Apps/Joplin/.sync/7ee5dc04afcb414aa7c684bfc1edba8b.md_1499352102856 failed, reason: connect EAGAIN 65.52.64.250:443 - Local (0.0.0.0:54374)',
// type: 'system',
// errno: 'EAGAIN',
// code: 'EAGAIN' }
this.logger().info(`Got error below - retrying (${i})...`);
this.logger().info(error);
await time.sleep((i + 1) * 3);
continue;
} else if (error && (error.code === 'resourceModified' || (error.error && error.error.code === 'resourceModified'))) {
// NOTE: not tested, very hard to reproduce and non-informative error message, but can be repeated
// Error: ETag does not match current item's value
// Code: resourceModified
// Header: {"_headers":{"cache-control":["private"],"transfer-encoding":["chunked"],"content-type":["application/json"],"request-id":["d...ea47"],"client-request-id":["d99...ea47"],"x-ms-ags-diagnostic":["{\"ServerInfo\":{\"DataCenter\":\"North Europe\",\"Slice\":\"SliceA\",\"Ring\":\"2\",\"ScaleUnit\":\"000\",\"Host\":\"AGSFE_IN_13\",\"ADSiteName\":\"DUB\"}}"],"duration":["96.9464"],"date":[],"connection":["close"]}}
// Request: PATCH https://graph.microsoft.com/v1.0/drive/root:/Apps/JoplinDev/f56c5601fee94b8085524513bf3e352f.md null "{\"fileSystemInfo\":{\"lastModifiedDateTime\":\"....\"}}" {"headers":{"Content-Type":"application/json","Authorization":"bearer ...
this.logger().info(`Got error below - retrying (${i})...`);
this.logger().info(error);
await time.sleep((i + 1) * 3);
continue;
} else if (error.code == 'itemNotFound' && method == 'DELETE') {
// Deleting a non-existing item is ok - noop
return;
} else {
error.request = `${method} ${url} ${JSON.stringify(query)} ${JSON.stringify(data)} ${JSON.stringify(options)}`;
error.headers = await response.headers;
throw error;
}
}
return response;
}
throw new Error(`Could not execute request after multiple attempts: ${method} ${url}`);
}
async execJson(method, path, query, data) {
let response = await this.exec(method, path, query, data);
let errorResponseText = await response.text();
try {
let output = JSON.parse(errorResponseText); // await response.json();
return output;
} catch (error) {
error.message = `OneDriveApi::execJson: Cannot parse JSON: ${errorResponseText} ${error.message}`;
throw error;
// throw new Error('Cannot parse JSON: ' + text);
}
}
async execText(method, path, query, data) {
let response = await this.exec(method, path, query, data);
let output = await response.text();
return output;
}
async refreshAccessToken() {
if (!this.auth_ || !this.auth_.refresh_token) {
this.setAuth(null);
throw new Error(_('Cannot refresh token: authentication data is missing. Starting the synchronisation again may fix the problem.'));
}
let body = new shim.FormData();
body.append('client_id', this.clientId());
if (!this.isPublic()) body.append('client_secret', this.clientSecret());
body.append('refresh_token', this.auth_.refresh_token);
body.append('redirect_uri', 'http://localhost:1917');
body.append('grant_type', 'refresh_token');
let options = {
method: 'POST',
body: body,
};
let response = await shim.fetch(this.tokenBaseUrl(), options);
if (!response.ok) {
this.setAuth(null);
let msg = await response.text();
throw new Error(`${msg}: TOKEN: ${this.auth_}`);
}
let auth = await response.json();
this.setAuth(auth);
}
}
module.exports = { OneDriveApi };