/NetLib/RESTProcessor.cs

/*

 * This code contained within HttpPost and HttpGet came 

 * from Dr. M Elkstein's blog, at 

 * http://rest.elkstein.org/2008/02/using-rest-in-c-sharp.html

 * 

 * No copywrite was stated on the page.

 * Crash (Joshua) Collison added the second overload of HttpPost, 

 * "public static string HttpPost(string url, string prebuiltParams)", and 

 * modified the first HttpPost to include the optional argument "string extras".

 */





using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Net;

using System.Web;

using System.IO;

using Newtonsoft.Json;

using System.Diagnostics;



namespace NetLib

{

    public static class RESTProcessor

    {

        #region Data and Properties

        #endregion //Data and Properties



        #region Contstructors



        //public RESTProcessor()

        //{



        //}



        #endregion //Contstructors



        #region Methods



        public static string HttpPost(string url, string[] paramNames, string[] paramValues, string extras = null)

        {

            //http://rest.elkstein.org/2008/02/using-rest-in-c-sharp.html

            string result;



            HttpWebRequest request = WebRequest.Create(new Uri(url)) as HttpWebRequest;



            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";



            //build parameters string

            StringBuilder parameters = new StringBuilder();

            for (int i = 0; i < paramNames.Length; i++)

            {

                parameters.Append(paramNames[i]);

                parameters.Append("=");

                parameters.Append(HttpUtility.UrlEncode(paramValues[i]));

                parameters.Append("&");

            }



            if (extras != null)

            {

                parameters.Append((extras));

            }



            //convert parameter string to bytes

            byte[] formData = UTF8Encoding.UTF8.GetBytes(parameters.ToString());

            request.ContentLength = formData.Length;



            //send the request

            using (Stream post = request.GetRequestStream())

            {

                post.Write(formData, 0, formData.Length);

            }



            //Grab the responce

            using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)

            {

                StreamReader reader = new StreamReader(response.GetResponseStream());

                result = reader.ReadToEnd();

            }





            return result;

        }



        public static string HttpPost(string url, string prebuiltParams)

        {



            string result;



            HttpWebRequest request = WebRequest.Create(new Uri(url)) as HttpWebRequest;



            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";



            //build parameters string

            string parameters = prebuiltParams;// HttpUtility.UrlEncode(prebuiltParams);



            //convert parameter string to bytes

            byte[] formData = UTF8Encoding.UTF8.GetBytes(parameters);

            request.ContentLength = formData.Length;



            //send the request

            using (Stream post = request.GetRequestStream())

            {

                post.Write(formData, 0, formData.Length);

            }

            //Grab the response

            try

            {

                using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)

                {

                    StreamReader reader = new StreamReader(response.GetResponseStream());

                    result = reader.ReadToEnd();

                }

            }

            catch (Exception ex)

            {

                Debug.WriteLine(ex.Message);

                throw ex;

            }

            return result;

        }



        public static string HttpPost(string url, List<string> header, bool useHeaderAuth)

        {

            string result;



            HttpWebRequest request = WebRequest.Create(new Uri(url)) as HttpWebRequest;



            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded";



            StringBuilder authorizationHeaderParams = new StringBuilder("OAuth ");





            //header.Sort();



            foreach (var item in header)

            {

                var param = item.Split('=');

                authorizationHeaderParams.Append(param[0]);

                authorizationHeaderParams.Append("=\"");

                authorizationHeaderParams.Append(Uri.EscapeDataString(param[1]));

                if (item != header.Last())

                {

                    authorizationHeaderParams.Append("\",");

                }

                else

                {

                    authorizationHeaderParams.Append("\"");

                }

            }









            request.Headers.Add("Authorization", authorizationHeaderParams.ToString());



            //convert parameter string to bytes

            byte[] formData = UTF8Encoding.UTF8.GetBytes(string.Empty);

            request.ContentLength = formData.Length;





            //send the request

            using (Stream post = request.GetRequestStream())

            {

                post.Write(formData, 0, formData.Length);

            }

            //Grab the response

            try

            {

                using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)

                {

                    StreamReader reader = new StreamReader(response.GetResponseStream());

                    result = reader.ReadToEnd();

                }

            }

            catch (Exception ex)

            {

                Debug.WriteLine(ex.Message);

                throw ex;

            }





            return result;

        }







        public static string HttpGet(string url)

        {

            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);

            HttpWebResponse resp = null;

            string result = null;

            try

            {

                resp = (HttpWebResponse)req.GetResponse();

                StreamReader reader =

                    new StreamReader(resp.GetResponseStream());

                result = reader.ReadToEnd();

            }

            catch (WebException ex)

            {

                //var response = (HttpWebResponse)ex.Response;

                Debug.WriteLine("### ERROR: " + ex.ToString() + " " + ex.Response);

            }

            finally

            {

                if (resp != null)

                {

                    resp.Close();

                }

            }







            return result;

        }





        public static string HttpGet(string url, List<string> header)

        {

            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);

            HttpWebResponse resp = null;

            string result = null;



            StringBuilder authorizationHeaderParams = new StringBuilder(string.Format("OAuth realm=\"{0}\",", 

                Uri.EscapeDataString("api.fitbit.com")));





            //header.Sort();



            foreach (var item in header)

            {

                var param = item.Split('=');

                authorizationHeaderParams.Append(param[0]);

                authorizationHeaderParams.Append("=\"");

                

                if (item != header.Last())

                {

                    

                    authorizationHeaderParams.Append(Uri.EscapeDataString(param[1]));

                    authorizationHeaderParams.Append("\", ");

                }

                else

                {

                    authorizationHeaderParams.Append(param[1]);

                    authorizationHeaderParams.Append("=\"");

                }

            }









            req.Headers.Add("Authorization", authorizationHeaderParams.ToString());











            try

            {

                resp = (HttpWebResponse)req.GetResponse();

                StreamReader reader =

                    new StreamReader(resp.GetResponseStream());

                result = reader.ReadToEnd();

            }

            catch (WebException ex)

            {

                //var response = (HttpWebResponse)ex.Response;

                Debug.WriteLine("### ERROR: " + ex.ToString() + " " + ex.Response);

            }

            finally

            {

                if (resp != null)

                {

                    resp.Close();

                }

            }







            return result;

        }

















        #endregion //Methods

    }

}