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TableClient.cs
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TableClient.cs
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using System;
using System.Collections;
using System.IO;
using System.Net;
using System.Text;
using ElzeKool;
using Microsoft.SPOT;
using NetMf.CommonExtensions;
using System.Collections;
namespace netmfazurestorage.Table
{
public class TableClient
{
public static string AccountName;
public static string AccountKey;
public static bool AttachFiddler;
#region constants
internal const string VersionHeader = "2011-08-18";
internal const string ContentType = "application/atom+xml";
#endregion
#region Properties
internal DateTime InstanceDate { get; set; }
#endregion
protected byte[] GetBodyBytesAndLength(string body, out int contentLength)
{
var content = Encoding.UTF8.GetBytes(body);
contentLength = content.Length;
return content;
}
public TableClient(string accountName, string accountKey)
{
InstanceDate = DateTime.UtcNow;
AccountName = accountName;
AccountKey = accountKey;
}
public void CreateTable(string tableName)
{
string xml = "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>" +
"<entry xmlns:d=\"http://schemas.microsoft.com/ado/2007/08/dataservices\" " +
"xmlns:m=\"http://schemas.microsoft.com/ado/2007/08/dataservices/metadata\" " +
"xmlns=\"http://www.w3.org/2005/Atom\"> " +
"<id>http://" + AccountName + ".table.core.windows.net/Tables('"
+ tableName +
"')</id>" +
"<title />" +
"<updated>" + InstanceDate.ToString("yyyy-MM-ddTHH:mm:ss.0000000Z") + "</updated>" +
"<author><name/></author> " +
"<content type=\"application/xml\"><m:properties><d:TableName>" + tableName + "</d:TableName></m:properties></content></entry>";
int contentLength = 0;
byte[] payload = GetBodyBytesAndLength(xml, out contentLength);
string header = CreateAuthorizationHeader(payload, ContentType, "/" + AccountName + "/Tables()");
SendWebRequest("http://" + AccountName + ".table.core.windows.net/Tables()", header, payload, contentLength);
}
public void AddTableEntityForTemperature(string tablename, string partitionKey, string rowKey, DateTime timeStamp, double temperature, string country)
{
var timestamp = timeStamp.ToString("yyyy-MM-ddTHH:mm:ss.0000000Z");
string xml =
StringUtility.Format("<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?><entry xml:base=\"http://{0}.table.core.windows.net/\" xmlns:d=\"http://schemas.microsoft.com/ado/2007/08/dataservices\" xmlns:m=\"http://schemas.microsoft.com/ado/2007/08/dataservices/metadata\" m:etag=\"W/"datetime'2008-09-18T23%3A46%3A19.4277424Z'"\" xmlns=\"http://www.w3.org/2005/Atom\">" +
"<id>http://{0}.table.core.windows.net/{6}(PartitionKey='{2}',RowKey='{3}')</id>" +
"<title/><updated>{1}</updated><author><name /></author>" +
"<link />" +
"<category term=\"{0}.Tables\" scheme=\"http://schemas.microsoft.com/ado/2007/08/dataservices/scheme\" />" +
"<content type=\"application/xml\"><m:properties><d:PartitionKey>{2}</d:PartitionKey><d:RowKey>{3}</d:RowKey>" +
"<d:Timestamp m:type=\"Edm.DateTime\">{1}</d:Timestamp>" +
"<d:Temperature m:type=\"Edm.Double\">{4}</d:Temperature> " +
"<d:Country>{5}</d:Country>" +
"</m:properties>" +
"</content>" +
"</entry>", AccountName, timestamp, partitionKey, rowKey, temperature.ToString(), country, tablename);
int contentLength = 0;
byte[] payload = GetBodyBytesAndLength(xml, out contentLength);
string header = CreateAuthorizationHeader(payload, ContentType, StringUtility.Format("/{0}/{1}", AccountName, tablename));
SendWebRequest(StringUtility.Format("http://{0}.table.core.windows.net/{1}", AccountName, tablename), header, payload, contentLength);
}
public void InsertTableEntity(string tablename, string partitionKey, string rowKey, DateTime timeStamp, System.Collections.ArrayList tableEntityProperties)
{
var timestamp = timeStamp.ToString("yyyy-MM-ddTHH:mm:ss.0000000Z");
string xml =
StringUtility.Format("<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?><entry xml:base=\"http://{0}.table.core.windows.net/\" xmlns:d=\"http://schemas.microsoft.com/ado/2007/08/dataservices\" xmlns:m=\"http://schemas.microsoft.com/ado/2007/08/dataservices/metadata\" m:etag=\"W/"datetime'2008-09-18T23%3A46%3A19.4277424Z'"\" xmlns=\"http://www.w3.org/2005/Atom\">" +
"<id>http://{0}.table.core.windows.net/{5}(PartitionKey='{2}',RowKey='{3}')</id>" +
"<title/><updated>{1}</updated><author><name /></author>" +
"<link />" +
"<category term=\"{0}.Tables\" scheme=\"http://schemas.microsoft.com/ado/2007/08/dataservices/scheme\" />" +
"<content type=\"application/xml\"><m:properties><d:PartitionKey>{2}</d:PartitionKey><d:RowKey>{3}</d:RowKey>" +
"<d:Timestamp m:type=\"Edm.DateTime\">{1}</d:Timestamp>" +
"{4}" +
"</m:properties>" +
"</content>" +
"</entry>", AccountName, timestamp, partitionKey, rowKey, GetTableXml(tableEntityProperties), tablename);
int contentLength = 0;
byte[] payload = GetBodyBytesAndLength(xml, out contentLength);
string header = CreateAuthorizationHeader(payload, ContentType, StringUtility.Format("/{0}/{1}", AccountName, tablename));
SendWebRequest(StringUtility.Format("http://{0}.table.core.windows.net/{1}", AccountName, tablename), header, payload, contentLength);
}
public void InsertTableEntity_Experimental(string tablename, string partitionKey, string rowKey, DateTime timeStamp, Hashtable tableEntityProperties)
{
var timestamp = timeStamp.ToString("yyyy-MM-ddTHH:mm:ss.0000000Z");
string xml =
StringUtility.Format("<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?><entry xml:base=\"http://{0}.table.core.windows.net/\" xmlns:d=\"http://schemas.microsoft.com/ado/2007/08/dataservices\" xmlns:m=\"http://schemas.microsoft.com/ado/2007/08/dataservices/metadata\" m:etag=\"W/"datetime'2008-09-18T23%3A46%3A19.4277424Z'"\" xmlns=\"http://www.w3.org/2005/Atom\">" +
"<id>http://{0}.table.core.windows.net/{5}(PartitionKey='{2}',RowKey='{3}')</id>" +
"<title/><updated>{1}</updated><author><name /></author>" +
"<link />" +
"<category term=\"{0}.Tables\" scheme=\"http://schemas.microsoft.com/ado/2007/08/dataservices/scheme\" />" +
"<content type=\"application/xml\"><m:properties><d:PartitionKey>{2}</d:PartitionKey><d:RowKey>{3}</d:RowKey>" +
"<d:Timestamp m:type=\"Edm.DateTime\">{1}</d:Timestamp>" +
"{4}" +
"</m:properties>" +
"</content>" +
"</entry>", AccountName, timestamp, partitionKey, rowKey, GetTableXml(tableEntityProperties), tablename);
int contentLength = 0;
byte[] payload = GetBodyBytesAndLength(xml, out contentLength);
string header = CreateAuthorizationHeader(payload, ContentType, StringUtility.Format("/{0}/{1}", AccountName, tablename));
SendWebRequest(StringUtility.Format("http://{0}.table.core.windows.net/{1}", AccountName, tablename), header, payload, contentLength);
}
private string GetTableXml(ArrayList tableEntityProperties)
{
string result=string.Empty;
foreach (var tableEntityProperty in tableEntityProperties)
{
var prop = tableEntityProperty as TableEntityProperty;
if (prop != null)
{
result += prop.ToString();
}
}
return result;
}
private static string GetTableXml(Hashtable tableEntityProperties)
{
string result = string.Empty;
foreach (var key in tableEntityProperties.Keys)
{
var value = tableEntityProperties[key];
if (value == null) continue;
var type = value.GetType().Name;
switch (type)
{
case "DateTime":
value = ((DateTime)value).ToString("yyyy-MM-ddTHH:mm:ss.0000000Z");
break;
case "Boolean":
value = (Boolean) value ? "true" : "false"; // bool is title case when you call ToString()
break;
}
result += StringUtility.Format("<d:{0} m:type=\"Edm.{2}\">{1}</d:{0}>", key, value, type);
}
return result;
}
#region Request Handling
//DataServiceVersion: Set the value of this header to 1.0;NetFx.
//MaxDataServiceVersion: Set the value of this header to 1.0;NetFx.
private HttpWebRequest PrepareRequest(string url, string authHeader, byte[] fileBytes = null, int contentLength = 0, string verb = "POST")
{
var uri = new Uri(url);
var request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = verb;
request.Headers.Add("x-ms-date", InstanceDate.ToString("R"));
request.Headers.Add("DataServiceVersion", "1.0;NetFx");
request.Headers.Add("MaxDataServiceVersion", "1.0;NetFx");
request.ContentType = ContentType;
request.ContentLength = contentLength;
request.Headers.Add("Date", InstanceDate.ToString("R"));
request.Headers.Add("x-ms-version", VersionHeader);
request.Headers.Add("Authorization", authHeader);
if (AttachFiddler)
request.Proxy = new WebProxy("127.0.0.1", 8888);
if (contentLength != 0)
{
request.GetRequestStream().Write(fileBytes, 0, fileBytes.Length);
}
return request;
}
protected void SendWebRequest(string url, string authHeader, byte[] fileBytes = null, int contentLength = 0)
{
HttpWebRequest request = PrepareRequest(url, authHeader, fileBytes, contentLength);
try
{
HttpWebResponse response;
using (response = (HttpWebResponse)request.GetResponse())
{
if (response.StatusCode == HttpStatusCode.Created)
{
Debug.Print("Resource has been created");
}
else
{
Debug.Print("Status was " + response.StatusCode);
var ResponseBody = "";
using (var responseStream = response.GetResponseStream())
using (var reader = new StreamReader(responseStream))
{
char[] bytes = new char[(int)responseStream.Length];
if (bytes.Length > 0)
{
reader.Read(bytes, 0, bytes.Length);
ResponseBody = new string(bytes);
}
}
Debug.Print(ResponseBody);
}
//if (response.StatusCode == HttpStatusCode.Accepted)
//{
// Trace.WriteLine("Container or blob action has been completed");
//}
}
}
catch (WebException ex)
{
if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.Conflict)
{
Debug.Print("container or blob already exists!");
}
if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.Forbidden)
{
Debug.Print("problem with signature!");
}
}
}
#endregion
#region Shared Access Signature
/*StringToSign = VERB + "\n" +
Content-MD5 + "\n" +
Content-Type + "\n" +
Date + "\n" +
CanonicalizedResource;*/
/*StringToSign =
Date + "\n" +
CanonicalizedResource;*/
// Signature=Base64(HMAC-SHA256(UTF8(StringToSign)))
protected string CreateAuthorizationHeader(byte[] content, string contentType, string canonicalResource)
{
//string toSign = String.Format("{0}\n{1}\n{2}\n{3}\n{4}",
// HttpVerb, hash, contentType, InstanceDate, canonicalResource);
string toSign = StringUtility.Format("{0}\n{1}", InstanceDate.ToString("R"), canonicalResource);
string signature;
var hmacBytes = SHA.computeHMAC_SHA256(Convert.FromBase64String(AccountKey), Encoding.UTF8.GetBytes(toSign));
signature = Convert.ToBase64String(hmacBytes).Replace("!", "+").Replace("*", "/"); ;
return "SharedKeyLite " + AccountName + ":" + signature;
}
#endregion
}
}