mirror of
https://github.com/laurent22/joplin.git
synced 2024-12-18 09:35:20 +02:00
353 lines
12 KiB
JavaScript
353 lines
12 KiB
JavaScript
const { basicDelta } = require('lib/file-api');
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const { rtrimSlashes, ltrimSlashes } = require('lib/path-utils.js');
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const JoplinError = require('lib/JoplinError');
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class FileApiDriverWebDav {
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constructor(api) {
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this.api_ = api;
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}
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api() {
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return this.api_;
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}
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requestRepeatCount() {
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return 3;
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}
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lastRequests() {
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return this.api().lastRequests();
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}
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clearLastRequests() {
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return this.api().clearLastRequests();
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}
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async stat(path) {
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try {
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const result = await this.api().execPropFind(path, 0, ['d:getlastmodified', 'd:resourcetype']);
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const resource = this.api().objectFromJson(result, ['d:multistatus', 'd:response', 0]);
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return this.statFromResource_(resource, path);
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} catch (error) {
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if (error.code === 404) return null;
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throw error;
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}
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}
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statFromResource_(resource, path) {
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// WebDAV implementations are always slightly different from one server to another but, at the minimum,
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// a resource should have a propstat key - if not it's probably an error.
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const propStat = this.api().arrayFromJson(resource, ['d:propstat']);
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if (!Array.isArray(propStat)) throw new Error(`Invalid WebDAV resource format: ${JSON.stringify(resource)}`);
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// Disabled for now to try to fix this: https://github.com/laurent22/joplin/issues/624
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//
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// const httpStatusLine = this.api().stringFromJson(resource, ['d:propstat',0,'d:status', 0]);
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// if ( typeof httpStatusLine === 'string' && httpStatusLine.indexOf('404') >= 0 ) throw new JoplinError(resource, 404);
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const resourceTypes = this.api().resourcePropByName(resource, 'array', 'd:resourcetype');
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let isDir = false;
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if (Array.isArray(resourceTypes)) {
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for (let i = 0; i < resourceTypes.length; i++) {
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const t = resourceTypes[i];
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if (typeof t === 'object' && 'd:collection' in t) {
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isDir = true;
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break;
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}
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}
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}
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const lastModifiedString = this.api().resourcePropByName(resource, 'string', 'd:getlastmodified');
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// Note: Not all WebDAV servers return a getlastmodified date (eg. Seafile, which doesn't return the
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// property for folders) so we can only throw an error if it's a file.
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if (!lastModifiedString && !isDir) throw new Error(`Could not get lastModified date for resource: ${JSON.stringify(resource)}`);
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const lastModifiedDate = lastModifiedString ? new Date(lastModifiedString) : new Date();
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if (isNaN(lastModifiedDate.getTime())) throw new Error(`Invalid date: ${lastModifiedString}`);
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return {
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path: path,
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updated_time: lastModifiedDate.getTime(),
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isDir: isDir,
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};
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}
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async setTimestamp() {
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throw new Error('Not implemented'); // Not needed anymore
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}
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async delta(path, options) {
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const getDirStats = async path => {
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const result = await this.list(path);
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return result.items;
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};
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return await basicDelta(path, getDirStats, options);
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}
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// A file href, as found in the result of a PROPFIND, can be either an absolute URL or a
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// relative URL (an absolute URL minus the protocol and domain), while the sync algorithm
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// works with paths relative to the base URL.
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hrefToRelativePath_(href, baseUrl, relativeBaseUrl) {
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let output = '';
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if (href.indexOf(baseUrl) === 0) {
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output = href.substr(baseUrl.length);
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} else if (href.indexOf(relativeBaseUrl) === 0) {
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output = href.substr(relativeBaseUrl.length);
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} else {
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throw new Error(`href ${href} not in baseUrl ${baseUrl} nor relativeBaseUrl ${relativeBaseUrl}`);
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}
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return rtrimSlashes(ltrimSlashes(output));
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}
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statsFromResources_(resources) {
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const relativeBaseUrl = this.api().relativeBaseUrl();
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const baseUrl = this.api().baseUrl();
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let output = [];
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for (let i = 0; i < resources.length; i++) {
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const resource = resources[i];
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const href = this.api().stringFromJson(resource, ['d:href', 0]);
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const path = this.hrefToRelativePath_(href, baseUrl, relativeBaseUrl);
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// if (href.indexOf(relativeBaseUrl) !== 0) throw new Error('Path "' + href + '" not inside base URL: ' + relativeBaseUrl);
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// const path = rtrimSlashes(ltrimSlashes(href.substr(relativeBaseUrl.length)));
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if (path === '') continue; // The list of resources includes the root dir too, which we don't want
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const stat = this.statFromResource_(resources[i], path);
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output.push(stat);
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}
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return output;
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}
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async list(path) {
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// const relativeBaseUrl = this.api().relativeBaseUrl();
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// function parsePropFindXml(xmlString) {
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// return new Promise(async (resolve, reject) => {
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// const saxOptions = {};
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// const saxParser = require('sax').parser(false, { position: false });
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// let stats = [];
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// let currentStat = null;
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// let currentText = '';
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// // When this is on, the tags from the bloated XML string are replaced by shorter ones,
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// // which makes parsing about 25% faster. However it's a bit of a hack so keep it as
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// // an option so that it can be disabled if it causes problems.
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// const optimizeXml = true;
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// const tagResponse = optimizeXml ? 'd:r' : 'd:response';
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// const tagGetLastModified = optimizeXml ? 'd:glm' : 'd:getlastmodified';
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// const tagPropStat = optimizeXml ? 'd:ps' : 'd:propstat';
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// const replaceUrls = optimizeXml;
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// saxParser.onerror = function (error) {
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// reject(new Error(e.toString()));
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// };
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// saxParser.ontext = function (t) {
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// currentText += t;
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// };
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// saxParser.onopentag = function (node) {
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// const tagName = node.name.toLowerCase();
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// currentText = '';
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// if (tagName === tagResponse) {
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// currentStat = { isDir: false };
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// }
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// };
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// saxParser.onclosetag = function(tagName) {
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// tagName = tagName.toLowerCase();
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// if (tagName === tagResponse) {
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// if (currentStat.path) { // The list of resources includes the root dir too, which we don't want
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// if (!currentStat.updated_time) throw new Error('Resource does not have a getlastmodified prop');
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// stats.push(currentStat);
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// }
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// currentStat = null;
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// }
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// if (tagName === 'd:href') {
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// const href = currentText;
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// if (replaceUrls) {
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// currentStat.path = rtrimSlashes(ltrimSlashes(href));
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// } else {
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// if (href.indexOf(relativeBaseUrl) < 0) throw new Error('Path not inside base URL: ' + relativeBaseUrl); // Normally not possible
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// currentStat.path = rtrimSlashes(ltrimSlashes(href.substr(relativeBaseUrl.length)));
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// }
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// }
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// if (tagName === tagGetLastModified) {
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// const lastModifiedDate = new Date(currentText);
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// if (isNaN(lastModifiedDate.getTime())) throw new Error('Invalid date: ' + currentText);
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// currentStat.updated_time = lastModifiedDate.getTime();
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// currentStat.created_time = currentStat.updated_time;
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// }
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// if (tagName === 'd:collection') {
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// currentStat.isDir = true;
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// }
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// currentText = '';
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// }
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// saxParser.onend = function () {
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// resolve(stats);
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// };
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// if (optimizeXml) {
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// xmlString = xmlString.replace(/<d:status>HTTP\/1\.1 200 OK<\/d:status>/ig, '');
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// xmlString = xmlString.replace(/<d:resourcetype\/>/ig, '');
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// xmlString = xmlString.replace(/d:getlastmodified/ig, tagGetLastModified);
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// xmlString = xmlString.replace(/d:response/ig, tagResponse);
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// xmlString = xmlString.replace(/d:propstat/ig, tagPropStat);
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// if (replaceUrls) xmlString = xmlString.replace(new RegExp(relativeBaseUrl, 'gi'), '');
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// }
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// let idx = 0;
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// let size = 1024 * 100;
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// while (true) {
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// sub = xmlString.substr(idx, size);
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// if (!sub.length) break;
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// saxParser.write(sub);
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// idx += size;
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// //await time.msleep(500);
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// }
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// saxParser.close();
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// //saxParser.write(xmlString).close();
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// });
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// }
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// For performance reasons, the response of the PROPFIND call is manually parsed with a regex below
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// instead of being processed by xml2json like the other WebDAV responses. This is over 2 times faster
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// and it means the mobile app does not freeze during sync.
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// async function parsePropFindXml2(xmlString) {
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// const regex = /<d:response>[\S\s]*?<d:href>([\S\s]*?)<\/d:href>[\S\s]*?<d:getlastmodified>(.*?)<\/d:getlastmodified>/g;
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// let output = [];
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// let match = null;
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// while (match = regex.exec(xmlString)) {
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// const href = html_entity_decode(match[1]);
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// if (href.indexOf(relativeBaseUrl) < 0) throw new Error('Path not inside base URL: ' + relativeBaseUrl); // Normally not possible
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// const path = rtrimSlashes(ltrimSlashes(href.substr(relativeBaseUrl.length)));
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// if (!path) continue; // The list of resources includes the root dir too, which we don't want
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// const lastModifiedDate = new Date(match[2]);
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// if (isNaN(lastModifiedDate.getTime())) throw new Error('Invalid date: ' + match[2]);
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// output.push({
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// path: path,
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// updated_time: lastModifiedDate.getTime(),
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// created_time: lastModifiedDate.getTime(),
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// isDir: !BaseItem.isSystemPath(path),
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// });
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// }
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// return output;
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// }
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// const resultXml = await this.api().execPropFind(path, 1, [
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// 'd:getlastmodified',
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// //'d:resourcetype', // Include this to use parsePropFindXml()
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// ], { responseFormat: 'text' });
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// const stats = await parsePropFindXml2(resultXml);
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// return {
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// items: stats,
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// hasMore: false,
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// context: null,
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// };
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const result = await this.api().execPropFind(path, 1, ['d:getlastmodified', 'd:resourcetype']);
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const resources = this.api().arrayFromJson(result, ['d:multistatus', 'd:response']);
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const stats = this.statsFromResources_(resources);
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return {
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items: stats,
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hasMore: false,
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context: null,
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};
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}
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async get(path, options) {
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if (!options) options = {};
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if (!options.responseFormat) options.responseFormat = 'text';
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try {
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const response = await this.api().exec('GET', path, null, null, options);
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// This is awful but instead of a 404 Not Found, Microsoft IIS returns an HTTP code 200
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// with a response body "The specified file doesn't exist." for non-existing files,
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// so we need to check for this.
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if (response === 'The specified file doesn\'t exist.') throw new JoplinError(response, 404);
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return response;
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} catch (error) {
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if (error.code !== 404) throw error;
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return null;
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}
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}
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async mkdir(path) {
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try {
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// RFC wants this, and so does NGINX. Not having the trailing slash means that some
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// WebDAV implementations will redirect to a URL with "/". However, when doing so
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// in React Native, the auth headers, etc. are lost so we need to avoid this.
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// https://github.com/facebook/react-native/issues/929
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if (!path.endsWith('/')) path = `${path}/`;
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await this.api().exec('MKCOL', path);
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} catch (error) {
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if (error.code === 405) return; // 405 means that the collection already exists (Method Not Allowed)
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// 409 should only be returned if a parent path does not exists (eg. when trying to create a/b/c when a/b does not exist)
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// however non-compliant servers (eg. Microsoft IIS) also return this code when the directory already exists. So here, if
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// we get this code, verify that indeed the directory already exists and exit if it does.
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if (error.code === 409) {
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const stat = await this.stat(path);
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if (stat) return;
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}
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throw error;
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}
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}
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async put(path, content, options = null) {
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return await this.api().exec('PUT', path, content, null, options);
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}
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async delete(path) {
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try {
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await this.api().exec('DELETE', path);
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} catch (error) {
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if (error.code !== 404) throw error;
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}
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}
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async move(oldPath, newPath) {
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await this.api().exec('MOVE', oldPath, null, {
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Destination: `${this.api().baseUrl()}/${newPath}`,
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Overwrite: 'T',
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});
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}
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format() {
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throw new Error('Not supported');
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}
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async clearRoot() {
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await this.delete('');
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await this.mkdir('');
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}
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}
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module.exports = { FileApiDriverWebDav };
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