首次提交：SyncCalendar 项目
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// entry/src/main/ets/common/DavClient.ets
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// CalDAV HTTP 客户端：REPORT / PUT / DELETE
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import { http } from '@kit.NetworkKit';
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import { buffer } from '@kit.ArkTS';
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import { BusinessError } from '@kit.BasicServicesKit';
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import { LogUtil } from './LogUtil';
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/** REPORT 返回的单个远端资源 */
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export class RemoteItem {
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href: string = ''; // 资源完整 URL
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etag: string = '';
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ics: string = ''; // VCALENDAR 文本
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}
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/** PROPFIND 返回的集合颜色 */
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export class DavColorEntry {
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href: string = ''; // 集合路径（服务器返回的是路径，不带域名）
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color: string = ''; // 规范化后的 #RRGGBB，可能为空
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}
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export class DavClient {
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/**
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* PROPFIND 拉取某路径下所有集合的 calendar-color
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* 返回「集合路径 → 颜色」列表（路径为服务器返回的原始 href）
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*/
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static async propfindColors(serverUrl: string, auth: string): Promise<DavColorEntry[]> {
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const requestBody: string = '<?xml version="1.0" encoding="utf-8"?>' +
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'<d:propfind xmlns:d="DAV:" xmlns:cs="http://calendarserver.org/ns/" ' +
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'xmlns:ical="http://apple.com/ns/ical/"><d:prop>' +
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'<d:resourcetype/><cs:getcolor/><ical:calendar-color/>' +
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'</d:prop></d:propfind>';
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const httpRequest = http.createHttp();
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try {
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const resp: http.HttpResponse = await httpRequest.request(serverUrl, {
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method: 'PROPFIND' as http.RequestMethod,
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header: {
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'Authorization': auth,
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'Content-Type': 'application/xml; charset=utf-8',
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'Depth': '1',
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'User-Agent': 'SyncCalendar/1.0'
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},
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extraData: requestBody,
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connectTimeout: 10000,
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readTimeout: 20000
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});
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console.info(`PROPFIND(颜色) 响应码: ${resp.responseCode}`);
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LogUtil.write(`HTTP PROPFIND(颜色) ${serverUrl} → ${resp.responseCode}`);
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if (resp.responseCode !== 207 && resp.responseCode !== 200) {
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return [];
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}
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const xml: string = resp.result as string;
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const result: DavColorEntry[] = [];
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const blocks: string[] = xml.split(/<\/[\w-]*:?response>/i);
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for (const block of blocks) {
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if (!/<[\w-]*:?response[\s>]/i.test(block)) {
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continue;
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}
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const href: string = DavClient.extractTag(block, 'href');
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if (href === '') {
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continue;
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}
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const resourcetype: string = DavClient.extractTag(block, 'resourcetype');
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if (!/calendar/i.test(resourcetype)) {
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continue;
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}
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const entry = new DavColorEntry();
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entry.href = href;
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// 两个命名空间都试：cs:getcolor（CalendarServer）/ ical:calendar-color（Apple）
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let color: string = DavClient.normalizeHex(DavClient.extractTag(block, 'getcolor'));
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if (color === '') {
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color = DavClient.normalizeHex(DavClient.extractTag(block, 'calendar-color'));
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}
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entry.color = color;
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result.push(entry);
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}
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if (result.length > 0 && result.every((e: DavColorEntry): boolean => e.color === '')) {
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// 全部没拿到颜色时打印原始响应片段，便于诊断命名空间
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console.info(`PROPFIND(颜色) 未取到颜色，响应片段: ${xml.substring(0, 600)}`);
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}
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return result;
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} finally {
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httpRequest.destroy();
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}
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}
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/** 颜色规范化：#RRGGBBAA → #RRGGBB */
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static normalizeHex(raw: string): string {
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const v: string = raw.trim();
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if (/^#[0-9A-Fa-f]{8}$/.test(v)) {
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return '#' + v.substring(3, 9).toUpperCase();
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}
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if (/^#[0-9A-Fa-f]{6}$/.test(v)) {
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return v.toUpperCase();
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}
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return '';
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}
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/** Basic Auth 头 */
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static authHeader(username: string, password: string): string {
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return 'Basic ' + buffer.from(`${username}:${password}`).toString('base64');
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}
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/** REPORT calendar-query：全量拉取某日历本内所有 VEVENT（不加时间范围，保证数据完整） */
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static async reportCalendar(href: string, auth: string): Promise<RemoteItem[]> {
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return DavClient.reportComponents(href, auth, 'VEVENT', '');
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}
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/** REPORT calendar-query：拉取某日历本内所有 VTODO 待办（不限时间范围，量小） */
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static async reportTodos(href: string, auth: string): Promise<RemoteItem[]> {
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return DavClient.reportComponents(href, auth, 'VTODO', '');
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}
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/** 通用 REPORT：按组件类型过滤拉取 calendar-data + getetag */
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private static async reportComponents(href: string, auth: string,
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compName: string, timeRange: string): Promise<RemoteItem[]> {
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const body: string = '<?xml version="1.0" encoding="utf-8"?>' +
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'<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">' +
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'<d:prop><d:getetag/><c:calendar-data/></d:prop>' +
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'<c:filter><c:comp-filter name="VCALENDAR">' +
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`<c:comp-filter name="${compName}">` +
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timeRange +
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'</c:comp-filter></c:comp-filter></c:filter></c:calendar-query>';
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const httpRequest = http.createHttp();
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try {
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const resp: http.HttpResponse = await httpRequest.request(href, {
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method: 'REPORT' as http.RequestMethod,
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header: {
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'Authorization': auth,
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'Content-Type': 'application/xml; charset=utf-8',
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'Depth': '1',
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'User-Agent': 'SyncCalendar/1.0'
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},
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extraData: body,
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connectTimeout: 10000,
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readTimeout: 60000
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});
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console.info(`REPORT(${compName}) ${href} 响应码: ${resp.responseCode}`);
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LogUtil.write(`HTTP REPORT(${compName}) ${href} → ${resp.responseCode}`);
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if (resp.responseCode === 401) {
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LogUtil.write(`HTTP REPORT(${compName}) 401 拒绝凭据`);
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throw new Error('服务器拒绝凭据(401)');
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}
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if (resp.responseCode < 200 || resp.responseCode >= 300) {
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LogUtil.write(`HTTP REPORT(${compName}) 异常状态码 ${resp.responseCode}`);
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throw new Error(`服务器返回状态码 ${resp.responseCode}`);
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}
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const xml: string = resp.result as string;
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LogUtil.write(`HTTP REPORT(${compName}) 响应体 ${xml.length} 字符`);
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const originMatch = /https?:\/\/[^/]+/i.exec(href);
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const origin: string = originMatch !== null ? originMatch[0] : '';
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const items: RemoteItem[] = [];
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const blocks: string[] = xml.split(/<\/[\w-]*:?response>/i);
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for (const block of blocks) {
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if (!/<[\w-]*:?response[\s>]/i.test(block)) {
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continue;
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}
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const resHref: string = DavClient.extractTag(block, 'href');
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if (resHref === '') {
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continue;
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}
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const etag: string = DavClient.extractTag(block, 'getetag').replace(/"/g, '');
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const start: number = block.indexOf('BEGIN:VCALENDAR');
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const end: number = block.indexOf('END:VCALENDAR');
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if (start < 0 || end < 0) {
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continue;
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}
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const item = new RemoteItem();
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item.href = resHref.startsWith('http') ? resHref : origin + resHref;
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item.etag = etag;
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item.ics = block.substring(start, end + 'END:VCALENDAR'.length);
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items.push(item);
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}
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return items;
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} finally {
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httpRequest.destroy();
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}
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}
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/** PUT 新建/更新远端事件，返回响应 ETag（可能为空） */
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static async putEvent(url: string, auth: string, ics: string): Promise<string> {
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const httpRequest = http.createHttp();
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try {
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const resp: http.HttpResponse = await httpRequest.request(url, {
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method: http.RequestMethod.PUT,
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header: {
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'Authorization': auth,
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'Content-Type': 'text/calendar; charset=utf-8',
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'User-Agent': 'SyncCalendar/1.0'
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},
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extraData: ics,
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connectTimeout: 10000,
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readTimeout: 30000
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});
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console.info(`PUT ${url} 响应码: ${resp.responseCode}`);
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LogUtil.write(`HTTP PUT ${url} → ${resp.responseCode}`);
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if (resp.responseCode < 200 || resp.responseCode >= 300) {
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throw new Error(`推送失败，服务器返回 ${resp.responseCode}`);
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}
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const headers = resp.header as Record<string, string>;
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if (headers !== undefined && headers !== null) {
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const etag = headers['ETag'] ?? headers['etag'] ?? '';
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return typeof etag === 'string' ? etag.replace(/"/g, '') : '';
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}
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return '';
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} finally {
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httpRequest.destroy();
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}
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}
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/** DELETE 远端事件 */
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static async deleteRemote(url: string, auth: string): Promise<void> {
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const httpRequest = http.createHttp();
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try {
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const resp: http.HttpResponse = await httpRequest.request(url, {
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method: http.RequestMethod.DELETE,
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header: {
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'Authorization': auth,
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'User-Agent': 'SyncCalendar/1.0'
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},
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connectTimeout: 10000,
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readTimeout: 30000
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});
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console.info(`DELETE ${url} 响应码: ${resp.responseCode}`);
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LogUtil.write(`HTTP DELETE ${url} → ${resp.responseCode}`);
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// 404 视为已删除，成功
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if ((resp.responseCode < 200 || resp.responseCode >= 300) && resp.responseCode !== 404) {
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throw new Error(`删除失败，服务器返回 ${resp.responseCode}`);
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}
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} finally {
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httpRequest.destroy();
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}
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}
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/** 提取任意命名空间前缀标签的内容 */
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static extractTag(xml: string, tag: string): string {
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const pattern: string = '<([\\w-]+:)?' + tag + '(?:\\s[^>]*)?>([\\s\\S]*?)<\\/([\\w-]+:)?' + tag + '>';
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const regex: RegExp = new RegExp(pattern, 'i');
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const match = regex.exec(xml);
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return match !== null ? match[2].trim() : '';
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}
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}
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