4

我正在尝试从 CalDAV 服务器获取当前用户拥有的日历列表。

通过以下请求，我能够使用我们的初始测试帐户获取此信息：

PROPFIND /calendars/users/test/
<propfind xmlns='DAV:'>
    <allprop/>
</propfind>

结果是一个<multistatus>包含多个元素的<response>元素。如果我提取resourcetype日历所在的元素，我会得到我的日历列表。

但是，当我们添加其他用户时，会产生“未找到”错误，因此我改为使用“主要匹配”请求来获取当前用户的“日历-主页-设置”路径。

该路径看起来像 /d817aaec-7d24-5b38-bc2f-6369da72cdd9/。所以我用这条路径尝试了上述请求。现在结果是一个<multistatus>只有一个元素的<response>元素。它不包含任何日历。第一个响应与我原始请求中的第一个响应完全相同。

我一辈子都想不出能让我在所有情况下都获得日历用户列表的魔法酱。

编辑：

这是我的一些代码。我最初尝试的“/calendars/users/test/” URL 是从GetRequestAddress(). 我曾经使用principal-match日历路径的第二种情况CalendarHomeSet（如下所示）。

Headers["Depth"] = "1";
//XElement xmlResult = UploadXml(GetRequestAddress(), // Alternatively, CalendarHomeSet
    method: CalDavMethod.PropertyFind,
    xml: XDocument.Parse("<propfind xmlns='DAV:'>" +
        "<allprop/>" +
        "</propfind>").Root);

private string GetRequestAddress(string calendarHRef = null, string resource = null)
{
    string path = calendarHRef;
    if (String.IsNullOrWhiteSpace(path))
        path = String.Format("/calendars/users/{0}/", UserName);
    if (!String.IsNullOrWhiteSpace(resource))
        path = Path.Combine(path, resource);
    return path;
}

/// <summary>
/// Gets/sets the path to the parent folder of any calendar subfolders
/// owned by the current user.
/// </summary>
public string CalendarHomeSet
{
    get
    {
        if (calendarHomeSet == null)
        {
            Headers["Depth"] = "0";

            XElement xmlResult = UploadXml(String.Format("/principals/users/{0}/", UserName),
                method: "REPORT",
                xml: XDocument.Parse(XmlHeader +
                    "<D:principal-match xmlns:D=\"DAV:\">" +
                        "<D:self/>" +
                        "<D:prop>" +
                            "<C:calendar-home-set xmlns:C=\"urn:ietf:params:xml:ns:caldav\"/>" +
                        "</D:prop>" +
                    "</D:principal-match>").Root);
            //
            XElement el = xmlResult.Descendants(CalDavXmlns + "calendar-home-set").FirstOrDefault();
            if (el != null)
            {
                calendarHomeSet = (string)el;
                if (!calendarHomeSet.EndsWith("/"))
                    calendarHomeSet += '/';
            }
        }
        return calendarHomeSet;
    }

    set
    {
        calendarHomeSet = value;
    }
}

private string calendarHomeSet = null;

第二次编辑：

以下是有关我的请求和响应的确切内容的更多详细信息。在第一个中，请注意结果包括一个集合，然后是两个日历集合。

PROPFIND /calendars/users/test/

<propfind xmlns="DAV:">
  <allprop />
</propfind>

回复：

<multistatus xmlns="DAV:">
  <response>
    <href>/calendars/users/test/</href>
    <propstat>
      <prop>
        <getetag>"4293-1000-4FFC9A16"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <displayname>Test User</displayname>
        <getcontenttype>httpd/unix-directory</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <collection />
        </resourcetype>
        <getcontentlength />
        <getlastmodified>Tue, 10 Jul 2012 21:09:42 GMT</getlastmodified>
        <creationdate>2012-07-10T21:09:42Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">CalendarHomeFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
  <response>
    <href>/calendars/users/test/calendar/</href>
    <propstat>
      <prop>
        <getetag>"42DB-1000-50108ABC"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <calendar-order xmlns="http://apple.com/ns/ical/">1</calendar-order>
        <displayname>calendar</displayname>
        <calendar-color xmlns="http://apple.com/ns/ical/">#F64F00FF</calendar-color>
        <getctag xmlns="http://calendarserver.org/ns/">2012-07-26 00:09:32.361284</getctag>
        <getcontenttype>httpd/unix-directory</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <collection />
          <calendar xmlns="urn:ietf:params:xml:ns:caldav" />
        </resourcetype>
        <getcontentlength />
        <schedule-calendar-transp xmlns="urn:ietf:params:xml:ns:caldav">
          <opaque />
        </schedule-calendar-transp>
        <getlastmodified>Thu, 26 Jul 2012 00:09:32 GMT</getlastmodified>
        <creationdate>2012-07-26T00:09:32Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">CalDAVFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
  <response>
    <href>/calendars/users/test/8C1F393E-04E8-428A-819A-933C3A9338AD/</href>
    <propstat>
      <prop>
        <getetag>"43AA-1000-50079D1C"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <calendar-order xmlns="http://apple.com/ns/ical/">0</calendar-order>
        <displayname>Jon Wood Calendar</displayname>
        <calendar-color xmlns="http://apple.com/ns/ical/">#711a76</calendar-color>
        <getctag xmlns="http://calendarserver.org/ns/">2012-07-19 05:37:32.673835</getctag>
        <getcontenttype>httpd/unix-directory</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <collection />
          <calendar xmlns="urn:ietf:params:xml:ns:caldav" />
        </resourcetype>
        <getcontentlength />
        <schedule-calendar-transp xmlns="urn:ietf:params:xml:ns:caldav">
          <transparent />
        </schedule-calendar-transp>
        <getlastmodified>Thu, 19 Jul 2012 05:37:32 GMT</getlastmodified>
        <creationdate>2012-07-19T05:37:32Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">CalDAVFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
  <response>
    <href>/calendars/users/test/outbox/</href>
    <propstat>
      <prop>
        <getetag>"D4E-1000-4FFB15AF"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <displayname>outbox</displayname>
        <getctag xmlns="http://calendarserver.org/ns/">2012-07-09 17:32:31.950308</getctag>
        <getcontenttype>httpd/unix-directory</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <collection />
          <schedule-outbox xmlns="urn:ietf:params:xml:ns:caldav" />
        </resourcetype>
        <getcontentlength />
        <getlastmodified>Mon, 09 Jul 2012 17:32:31 GMT</getlastmodified>
        <creationdate>2012-07-09T17:32:31Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">ScheduleOutboxFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
  <response>
    <href>/calendars/users/test/freebusy</href>
    <propstat>
      <prop>
        <getetag>"D7D-0-4FFC3F7C"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <displayname>freebusy</displayname>
        <getcontenttype>text/plain</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <free-busy-url xmlns="http://calendarserver.org/ns/" />
        </resourcetype>
        <getcontentlength>0</getcontentlength>
        <getlastmodified>Tue, 10 Jul 2012 14:43:08 GMT</getlastmodified>
        <creationdate>2012-07-10T14:43:08Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">FreeBusyURLFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
  <response>
    <href>/calendars/users/test/inbox/</href>
    <propstat>
      <prop>
        <getetag>"42FB-1000-4FF21C60"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <displayname>inbox</displayname>
        <getctag xmlns="http://calendarserver.org/ns/">2012-07-02 22:10:40.527683</getctag>
        <getcontenttype>httpd/unix-directory</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <collection />
          <schedule-inbox xmlns="urn:ietf:params:xml:ns:caldav" />
        </resourcetype>
        <getcontentlength />
        <schedule-default-calendar-URL xmlns="urn:ietf:params:xml:ns:caldav">
          <href xmlns="DAV:">/calendars/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/calendar</href>
        </schedule-default-calendar-URL>
        <getlastmodified>Mon, 02 Jul 2012 22:10:40 GMT</getlastmodified>
        <creationdate>2012-07-02T22:10:40Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">ScheduleInboxFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
</multistatus>

接下来，我尝试了相同的请求，但针对不同的 URL。这一次，我使用了通过查询主体获得的 URL。现在结果仍然包含初始集合，但它们不包含日历。

PROPFIND /calendars/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/ (CalendarHomeSet)

<propfind xmlns="DAV:">
  <allprop />
</propfind>

回复：

<multistatus xmlns="DAV:">
  <response>
    <href>/calendars/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
    <propstat>
      <prop>
        <getetag>"4293-1000-4FFC9A16"</getetag>
        <current-user-principal>
          <href>/principals/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9/</href>
        </current-user-principal>
        <displayname>Test User</displayname>
        <getcontenttype>httpd/unix-directory</getcontenttype>
        <supportedlock>
          <lockentry>
            <lockscope>
              <exclusive />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
          <lockentry>
            <lockscope>
              <shared />
            </lockscope>
            <locktype>
              <write />
            </locktype>
          </lockentry>
        </supportedlock>
        <resourcetype>
          <collection />
        </resourcetype>
        <getcontentlength />
        <getlastmodified>Tue, 10 Jul 2012 21:09:42 GMT</getlastmodified>
        <creationdate>2012-07-10T21:09:42Z</creationdate>
        <resource-class xmlns="http://twistedmatrix.com/xml_namespace/dav/">CalendarHomeFile</resource-class>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
</multistatus>

第三次编辑：

这是我用来设置日历主页的请求和响应：

REPORT /principals/users/test/

<D:principal-match xmlns:D="DAV:">
  <D:self />
  <D:prop>
    <C:calendar-home-set xmlns:C="urn:ietf:params:xml:ns:caldav" />
  </D:prop>
</D:principal-match>

回复：

<multistatus xmlns="DAV:">
  <response>
    <href>/principals/users/test/</href>
    <propstat>
      <prop>
        <calendar-home-set xmlns="urn:ietf:params:xml:ns:caldav">
          <href xmlns="DAV:">/calendars/__uids__/d817aaec-7d24-5b38-bc2f-6369da72cdd9</href>
        </calendar-home-set>
      </prop>
      <status>HTTP/1.1 200 OK</status>
    </propstat>
  </response>
</multistatus>
4

1 回答 1

4

我现在能想到的两件事：

  1. 您是否指定 Depth: 1 标题？
  2. 新用户真的有日历吗？对于新用户，该列表可能只是空的。

如果这些指针没有帮助，您应该显示完整的请求和响应。

编辑

这就是您通常应该在 CalDAV 中进行发现的方式。

  1. 在用户提供的 url 上执行 PROPFIND，请求{DAV:}current-user-principal。
  2. 使用此 url，您可以执行 PROPFIND 以查找有关用户的更多信息。在这里，您通常应该请求 caldav 命名空间中的 calendar-home-set 属性。
  3. 然后，使用 calendar-home-set，执行 PROPFIND (depth: 1) 来查找日历。

我有一种感觉，因为您进行了主体匹配，并且不使用当前用户主体；这有点不对劲。但我不完全确定。我的预感很简单，就是您检测到的 calendar-home-set 是错误的。

于 2012-07-26T16:07:59.900 回答