ICloud Caldav连接获取日历
Posted
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了ICloud Caldav连接获取日历相关的知识，希望对你有一定的参考价值。
我正在尝试连接到ICloud日历并解析我可以执行的事件，如果我使用公共日历网址并且它工作正常。但是这样做我无法更新事件，因为我需要CalDav连接。
我很挣扎，因为这里的大多数示例都返回404 Not Found。
任何人都可以在C＃中为我提供“ICloud Caldav连接以获取日历”的示例或工作示例。
请记住上面的内容我将只有Username和Password帐户，所以我必须加载日历列表。
答案
找到this文章非常有助于完成任务：
示例代码：
static string calendarURI = "https://caldav.icloud.com/";
static string username = "abc@icloud.com";
static string password = "xxxx-xxxx-xxxx-xxxx";
//static string content = "<?xml version="1.0" encoding="utf-8"?><propfind xlmns="DAV:"><allprop/></propfind>";
static string content = "<propfind xmlns='DAV:'><prop><current-user-principal/></prop></propfind>";
public async static void GetCalendars()
{
try
{
ResponseStream = ExectueMethod(username, password, calendarURI, "PROPFIND", null, content, "application/x-www-form-urlencoded","0");
XmlDocument = new XmlDocument();
XmlDocument.Load(ResponseStream);
string xmlInner = XmlDocument.InnerXml;
XmlDocument innerXmlDocument = new XmlDocument();
innerXmlDocument.LoadXml(xmlInner);
XmlNode statusCheck = innerXmlDocument.GetElementsByTagName("status")[0];
if (statusCheck != null)
{
string status = statusCheck.InnerText.Trim();
if (status == "HTTP/1.1 200 OK")
{
XmlNode tag = innerXmlDocument.GetElementsByTagName("current-user-principal")[0];
if (tag != null)
{
XmlNode taghref = tag.ChildNodes[0];
if (taghref != null)
{
string href = taghref.InnerText.Trim();
string baseUrl = "https://caldav.icloud.com" + href;
Console.WriteLine("BASSE URL :" + baseUrl);
content = "<propfind xmlns='DAV:' xmlns:cd='urn:ietf:params:xml:ns:caldav'><prop><cd:calendar-home-set/></prop></propfind>";
ResponseStream = ExectueMethod(username, password, baseUrl, "PROPFIND", null, content, "application/x-www-form-urlencoded","0");
XmlDocument = new XmlDocument();
XmlDocument.Load(ResponseStream);
xmlInner = XmlDocument.InnerXml;
innerXmlDocument = new XmlDocument();
innerXmlDocument.LoadXml(xmlInner);
tag = innerXmlDocument.GetElementsByTagName("calendar-home-set")[0];
if (tag != null)
{
taghref = tag.ChildNodes[0];
if (taghref != null)
{
string calURL = taghref.InnerText.Trim();
Console.WriteLine("CALENDER URL :" + calURL);
content = "<propfind xmlns='DAV:'><prop><displayname/><getctag />calendar-data</prop></propfind>";
ResponseStream = ExectueMethod(username, password, calURL, "PROPFIND", null, content, "application/x-www-form-urlencoded","1");
XmlDocument = new XmlDocument();
XmlDocument.Load(ResponseStream);
xmlInner = XmlDocument.InnerXml;
innerXmlDocument = new XmlDocument();
innerXmlDocument.LoadXml(xmlInner);
int xx = 0;
foreach (XmlNode row in innerXmlDocument.GetElementsByTagName("response"))
{
if (xx > 0)
{
string calhrefUrlfinal = row.InnerXml.Remove(row.InnerXml.IndexOf("</href>"));
calhrefUrlfinal = calhrefUrlfinal.Replace("<href xmlns="DAV:">", "");
string Calname = row.InnerXml.Remove(row.InnerXml.IndexOf("</displayname>"));
Calname = Calname.Remove(0, Calname.IndexOf("<displayname>")).Replace("<displayname>", "").Trim();
string statusx = row.InnerXml.Remove(row.InnerXml.IndexOf("</status>"));
statusx = statusx.Remove(0, statusx.IndexOf("<status>")).Replace("<status>", "").Trim();
if (statusx == "HTTP/1.1 200 OK")
{
Console.Write("THIS IS VALID CAL!");
// ADD THIS CAL TO LIST TO SHOW!
content = "<propfind xmlns='DAV:'><prop><calendar-data/><getctag /></prop></propfind>";
ResponseStream = ExectueMethod(username, password, calhrefUrlfinal, "PROPFIND", null, content, "application/x-www-form-urlencoded", "1");
XmlDocument = new XmlDocument();
XmlDocument.Load(ResponseStream);
xmlInner = XmlDocument.InnerXml;
XmlDocument icsSoc = new XmlDocument();
icsSoc.LoadXml(xmlInner);
foreach (XmlNode ics in icsSoc.GetElementsByTagName("href"))
{
string t = ics.InnerText.Trim();
if (t.Contains(".ics"))
{
DownloadICS(t, Calname + ".ics");
break;
}
}
}
}
xx = xx + 1;
}
}
}
}
}
}
}
}
catch (Exception ex)
{ }
}
private static void DownloadICS(string pathUri, string fileNames)
{
WebClient request = new WebClient();
request.Credentials = new NetworkCredential(username, password);
Byte[] data = request.DownloadData(pathUri);
var str = System.Text.Encoding.Default.GetString(data);
string path = "icloudCalenders\" + fileNames.Substring(fileNames.LastIndexOf(" / ") + 1);
FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);
fs.Write(data, 0, data.Length);
fs.Close();
}
private static Stream ExectueMethod(string username, string password, string caldevURI, string methodName, WebHeaderCollection headers, string content, string contentType,string depth)
{
HttpWebRequest httpGetRequest = (HttpWebRequest)WebRequest.Create(caldevURI);
httpGetRequest.Credentials = new NetworkCredential(username, password);
httpGetRequest.PreAuthenticate = true;
httpGetRequest.Method = methodName;
httpGetRequest.Headers.Add("Depth", depth);
httpGetRequest.Headers.Add("Authori以上是关于ICloud Caldav连接获取日历的主要内容，如果未能解决你的问题，请参考以下文章
从 iCloud 获取 CalDAV 事件返回“403 Forbidden”