public PicasaAlbum CreateAlbum(string title, string description, AlbumAccess access, DateTime pubDate)
{
if (title == null)
{
throw new ArgumentNullException("title");
}
if (description == null)
{
description = "";
}
if (access != AlbumAccess.Public && access != AlbumAccess.Private)
{
throw new ArgumentException("Invalid value.", "access");
}
// Check if pubDate can be in the past
string url = GDataApi.GetPostURL(conn.User);
if (url == null)
{
throw new UnauthorizedAccessException("You are not authorized to create albums.");
}
string op_string = GetXmlForCreate(title, description, pubDate, access);
byte [] op_bytes = Encoding.UTF8.GetBytes(op_string);
HttpWebRequest request = conn.AuthenticatedRequest(url);
request.ContentType = "application/atom+xml; charset=UTF-8";
request.Method = "POST";
Stream output_stream = request.GetRequestStream();
output_stream.Write(op_bytes, 0, op_bytes.Length);
output_stream.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
string received = "";
using (Stream stream = response.GetResponseStream()) {
StreamReader sr = new StreamReader(stream, Encoding.UTF8);
received = sr.ReadToEnd();
}
response.Close();
XmlDocument doc = new XmlDocument();
doc.LoadXml(received);
XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
XmlUtil.AddDefaultNamespaces(nsmgr);
XmlNode entry = doc.SelectSingleNode("atom:entry", nsmgr);
return(new PicasaAlbum(conn, null, entry, nsmgr));
}
/* (from gdata documentation...)
* <entry xmlns='http://www.w3.org/2005/Atom'
* xmlns:media='http://search.yahoo.com/mrss/'
* xmlns:gphoto='http://schemas.google.com/photos/2007'>
* <title type='text'>Trip To Italy</title>
* <summary type='text'>This was the recent trip I took to Italy.</summary>
* <gphoto:location>Italy</gphoto:location>
* <gphoto:access>public</gphoto:access>
* <gphoto:commentingEnabled>true</gphoto:commentingEnabled>
* <gphoto:timestamp>1152255600000</gphoto:timestamp>
* <media:group>
* <media:keywords>italy, vacation</media:keywords>
* </media:group>
* <category scheme='http://schemas.google.com/g/2005#kind'
* term='http://schemas.google.com/photos/2007#album'></category>
* </entry>
*/
static string GetXmlForCreate(string title, string desc, DateTime date, AlbumAccess access)
{
var xml = new XmlUtil();
xml.WriteElementStringWithAttributes("title", title, "type", "text");
xml.WriteElementStringWithAttributes("summary", desc, "type", "text");
// location ?
xml.WriteElementString("access", access.ToString().ToLower(CultureInfo.InvariantCulture), PicasaNamespaces.GPhoto);
// commentingEnabled ?
xml.WriteElementString("timestamp", ((long)(date - new DateTime(1970, 1, 1)).TotalSeconds * 1000).ToString(), PicasaNamespaces.GPhoto);
//keywords ?
xml.WriteElementStringWithAttributes("category", null,
"scheme", "http://schemas.google.com/g/2005#kind",
"term", "http://schemas.google.com/photos/2007#album");
return(xml.GetDocumentString());
}
private void ParseAlbum(XmlNode nodeitem, XmlNamespaceManager nsmgr)
{
System.Console.WriteLine(nodeitem.InnerText);
title = nodeitem.SelectSingleNode("atom:title", nsmgr).InnerText;
description = nodeitem.SelectSingleNode("media:group/media:description", nsmgr).InnerText;
XmlNode node = nodeitem.SelectSingleNode("gphoto:id", nsmgr);
if (node != null)
{
id = node.InnerText;
}
foreach (XmlNode xlink in nodeitem.SelectNodes("atom:link", nsmgr))
{
if (xlink.Attributes.GetNamedItem("rel").Value == "alternate")
{
link = xlink.Attributes.GetNamedItem("href").Value;
break;
}
}
node = nodeitem.SelectSingleNode("gphoto:access", nsmgr);
if (node != null)
{
string acc = node.InnerText;
access = (acc == "public") ? AlbumAccess.Public : AlbumAccess.Private;
}
node = nodeitem.SelectSingleNode("gphoto:numphotos", nsmgr);
if (node != null)
{
num_photos = (int)UInt32.Parse(node.InnerText);
}
node = nodeitem.SelectSingleNode("gphoto:numphotosremaining", nsmgr);
if (node != null)
{
num_photos_remaining = (int)UInt32.Parse(node.InnerText);
}
node = nodeitem.SelectSingleNode("gphoto:bytesused", nsmgr);
if (node != null)
{
bytes_used = (long)UInt64.Parse(node.InnerText);
}
}
/* (from gdata documentation...)
<entry xmlns='http://www.w3.org/2005/Atom'
xmlns:media='http://search.yahoo.com/mrss/'
xmlns:gphoto='http://schemas.google.com/photos/2007'>
<title type='text'>Trip To Italy</title>
<summary type='text'>This was the recent trip I took to Italy.</summary>
<gphoto:location>Italy</gphoto:location>
<gphoto:access>public</gphoto:access>
<gphoto:commentingEnabled>true</gphoto:commentingEnabled>
<gphoto:timestamp>1152255600000</gphoto:timestamp>
<media:group>
<media:keywords>italy, vacation</media:keywords>
</media:group>
<category scheme='http://schemas.google.com/g/2005#kind'
term='http://schemas.google.com/photos/2007#album'></category>
</entry>
*/
private static string GetXmlForCreate(string title, string desc, DateTime date, AlbumAccess access)
{
XmlUtil xml = new XmlUtil ();
xml.WriteElementStringWithAttributes ("title", title, "type", "text");
xml.WriteElementStringWithAttributes ("summary", desc, "type", "text");
// location ?
xml.WriteElementString ("access", access.ToString ().ToLower (CultureInfo.InvariantCulture), PicasaNamespaces.GPhoto);
// commentingEnabled ?
xml.WriteElementString ("timestamp", ((long)(date - new DateTime (1970, 1, 1)).TotalSeconds * 1000).ToString (), PicasaNamespaces.GPhoto);
//keywords ?
xml.WriteElementStringWithAttributes ("category", null,
"scheme", "http://schemas.google.com/g/2005#kind",
"term", "http://schemas.google.com/photos/2007#album");
return xml.GetDocumentString ();
}
public PicasaAlbum CreateAlbum(string title, string description, AlbumAccess access, DateTime pubDate)
{
if (title == null)
throw new ArgumentNullException ("title");
if (description == null)
description = "";
if (access != AlbumAccess.Public && access != AlbumAccess.Private)
throw new ArgumentException ("Invalid value.", "access");
// Check if pubDate can be in the past
string url = GDataApi.GetPostURL (conn.User);
if (url == null)
throw new UnauthorizedAccessException ("You are not authorized to create albums.");
string op_string = GetXmlForCreate (title, description, pubDate, access);
byte [] op_bytes = Encoding.UTF8.GetBytes (op_string);
HttpWebRequest request = conn.AuthenticatedRequest (url);
request.AutomaticDecompression = DecompressionMethods.GZip;
request.ContentType = "application/atom+xml; charset=UTF-8";
request.Method = "POST";
Stream output_stream = request.GetRequestStream ();
output_stream.Write (op_bytes, 0, op_bytes.Length);
output_stream.Close ();
HttpWebResponse response = (HttpWebResponse) request.GetResponse ();
string received = "";
using (Stream stream = response.GetResponseStream ()) {
StreamReader sr = new StreamReader (stream, Encoding.UTF8);
received = sr.ReadToEnd ();
}
response.Close ();
XmlDocument doc = new XmlDocument ();
doc.LoadXml (received);
XmlNamespaceManager nsmgr = new XmlNamespaceManager (doc.NameTable);
XmlUtil.AddDefaultNamespaces (nsmgr);
XmlNode entry = doc.SelectSingleNode ("atom:entry", nsmgr);
return new PicasaAlbum (conn, null, entry, nsmgr);
}
public PicasaAlbum CreateAlbum(string title, string description, AlbumAccess access)
{
return CreateAlbum (title, description, access, DateTime.Now);
}
public PicasaAlbum CreateAlbum(string title, AlbumAccess access)
{
return CreateAlbum (title, null, access, DateTime.Now);
}
public PicasaAlbum CreateAlbum(string title, string description, AlbumAccess access)
{
return(CreateAlbum(title, description, access, DateTime.Now));
}
public PicasaAlbum CreateAlbum(string title, AlbumAccess access)
{
return(CreateAlbum(title, null, access, DateTime.Now));
}
private void ParseAlbum(XmlNode nodeitem, XmlNamespaceManager nsmgr)
{
title = nodeitem.SelectSingleNode ("atom:title", nsmgr).InnerText;
description = nodeitem.SelectSingleNode ("media:group/media:description", nsmgr).InnerText;
XmlNode node = nodeitem.SelectSingleNode ("gphoto:id", nsmgr);
if (node != null)
id = node.InnerText;
foreach (XmlNode xlink in nodeitem.SelectNodes ("atom:link", nsmgr)) {
if (xlink.Attributes.GetNamedItem ("rel").Value == "alternate") {
link = xlink.Attributes.GetNamedItem ("href").Value;
break;
}
}
node = nodeitem.SelectSingleNode ("gphoto:access", nsmgr);
if (node != null) {
string acc = node.InnerText;
access = (acc == "public") ? AlbumAccess.Public : AlbumAccess.Private;
}
node = nodeitem.SelectSingleNode ("gphoto:numphotos", nsmgr);
if (node != null)
num_photos = (int) UInt32.Parse (node.InnerText);
node = nodeitem.SelectSingleNode ("gphoto:numphotosremaining", nsmgr);
if (node != null)
num_photos_remaining = (int) UInt32.Parse (node.InnerText);
node = nodeitem.SelectSingleNode ("gphoto:bytesused", nsmgr);
if (node != null)
bytes_used = (long) UInt64.Parse (node.InnerText);
}
