mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-03 08:35:29 +02:00
214 lines
6.1 KiB
JavaScript
214 lines
6.1 KiB
JavaScript
const Logger = require('./Logger').default;
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const shim = require('./shim').default;
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const JoplinError = require('./JoplinError');
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const time = require('./time').default;
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const EventDispatcher = require('./EventDispatcher');
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class DropboxApi {
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constructor(options) {
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this.logger_ = new Logger();
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this.options_ = options;
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this.authToken_ = null;
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this.dispatcher_ = new EventDispatcher();
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}
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clientId() {
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return this.options_.id;
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}
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clientSecret() {
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return this.options_.secret;
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}
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setLogger(l) {
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this.logger_ = l;
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}
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logger() {
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return this.logger_;
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}
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authToken() {
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return this.authToken_; // Without the "Bearer " prefix
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}
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on(eventName, callback) {
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return this.dispatcher_.on(eventName, callback);
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}
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setAuthToken(v) {
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this.authToken_ = v;
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this.dispatcher_.dispatch('authRefreshed', this.authToken());
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}
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loginUrl() {
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return `https://www.dropbox.com/oauth2/authorize?response_type=code&client_id=${this.clientId()}`;
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}
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baseUrl(endPointFormat) {
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if (['content', 'api'].indexOf(endPointFormat) < 0) throw new Error(`Invalid end point format: ${endPointFormat}`);
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return `https://${endPointFormat}.dropboxapi.com/2`;
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}
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requestToCurl_(url, options) {
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const output = [];
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output.push('curl');
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if (options.method) output.push(`-X ${options.method}`);
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if (options.headers) {
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for (const n in options.headers) {
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if (!options.headers.hasOwnProperty(n)) continue;
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output.push(`${'-H ' + '\''}${n}: ${options.headers[n]}'`);
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}
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}
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if (options.body) output.push(`${'--data ' + '"'}${options.body}"`);
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output.push(url);
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return output.join(' ');
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}
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async execAuthToken(authCode) {
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const postData = {
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code: authCode,
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grant_type: 'authorization_code',
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client_id: this.clientId(),
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client_secret: this.clientSecret(),
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};
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let formBody = [];
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for (const property in postData) {
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const encodedKey = encodeURIComponent(property);
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const encodedValue = encodeURIComponent(postData[property]);
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formBody.push(`${encodedKey}=${encodedValue}`);
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}
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formBody = formBody.join('&');
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const response = await shim.fetch('https://api.dropboxapi.com/oauth2/token', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8',
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},
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body: formBody,
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});
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const responseText = await response.text();
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if (!response.ok) throw new Error(responseText);
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return JSON.parse(responseText);
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}
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isTokenError(status, responseText) {
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if (status === 401) return true;
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if (responseText.indexOf('OAuth 2 access token is malformed') >= 0) return true;
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// eg. Error: POST files/create_folder_v2: Error (400): Error in call to API function "files/create_folder_v2": Must provide HTTP header "Authorization" or URL parameter "authorization".
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if (responseText.indexOf('Must provide HTTP header "Authorization"') >= 0) return true;
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return false;
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}
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async exec(method, path = '', body = null, headers = null, options = null) {
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if (headers === null) headers = {};
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if (options === null) options = {};
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if (!options.target) options.target = 'string';
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const authToken = this.authToken();
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if (authToken) headers['Authorization'] = `Bearer ${authToken}`;
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const endPointFormat = ['files/upload', 'files/download'].indexOf(path) >= 0 ? 'content' : 'api';
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if (endPointFormat === 'api') {
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headers['Content-Type'] = 'application/json';
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if (body && typeof body === 'object') body = JSON.stringify(body);
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} else {
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headers['Content-Type'] = 'application/octet-stream';
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}
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const fetchOptions = {};
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fetchOptions.headers = headers;
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fetchOptions.method = method;
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if (options.path) fetchOptions.path = options.path;
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if (body) fetchOptions.body = body;
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const url = path.indexOf('https://') === 0 ? path : `${this.baseUrl(endPointFormat)}/${path}`;
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let tryCount = 0;
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while (true) {
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try {
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let response = null;
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// console.info(this.requestToCurl_(url, fetchOptions));
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// console.info(method + ' ' + url);
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if (options.source == 'file' && (method == 'POST' || method == 'PUT')) {
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response = await shim.uploadBlob(url, fetchOptions);
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} else if (options.target == 'string') {
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response = await shim.fetch(url, fetchOptions);
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} else {
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// file
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response = await shim.fetchBlob(url, fetchOptions);
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}
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const responseText = await response.text();
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// console.info('Response: ' + responseText);
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let responseJson_ = null;
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const loadResponseJson = () => {
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if (!responseText) return null;
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if (responseJson_) return responseJson_;
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try {
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responseJson_ = JSON.parse(responseText);
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} catch (error) {
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return { error: responseText };
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}
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return responseJson_;
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};
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// Creates an error object with as much data as possible as it will appear in the log, which will make debugging easier
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const newError = message => {
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const json = loadResponseJson();
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let code = '';
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if (json && json.error_summary) {
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code = json.error_summary;
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}
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// Gives a shorter response for error messages. Useful for cases where a full HTML page is accidentally loaded instead of
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// JSON. That way the error message will still show there's a problem but without filling up the log or screen.
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const shortResponseText = (`${responseText}`).substr(0, 1024);
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const error = new JoplinError(`${method} ${path}: ${message} (${response.status}): ${shortResponseText}`, code);
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error.httpStatus = response.status;
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return error;
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};
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if (!response.ok) {
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if (this.isTokenError(response.status, responseText)) {
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this.setAuthToken(null);
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}
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// When using fetchBlob we only get a string (not xml or json) back
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if (options.target === 'file') throw newError('fetchBlob error');
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throw newError('Error');
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}
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if (options.responseFormat === 'text') return responseText;
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return loadResponseJson();
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} catch (error) {
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tryCount++;
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if (error && typeof error.code === 'string' && error.code.indexOf('too_many_write_operations') >= 0) {
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this.logger().warn(`too_many_write_operations ${tryCount}`);
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if (tryCount >= 3) {
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throw error;
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}
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await time.sleep(tryCount * 2);
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} else {
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throw error;
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}
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}
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}
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}
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}
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module.exports = DropboxApi;
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