/// <summary>
/// Makes an asynchronous batch request to the Facebook server.
/// </summary>
/// <param name="batchParameters">
/// List of batch parameters.
/// </param>
/// <param name="userState">
/// The user state.
/// </param>
/// <param name="cancellationToken">
/// The cancellation token.
/// </param>
/// <returns>
/// The json result task.
/// </returns>
public virtual Task<object> BatchTaskAsync(FacebookBatchParameter[] batchParameters, object userState, CancellationToken cancellationToken
#if ASYNC_AWAIT
, System.IProgress<FacebookUploadProgressChangedEventArgs> uploadProgress
#endif
)
{
return BatchTaskAsync(batchParameters, userState, null, cancellationToken
#if ASYNC_AWAIT
, uploadProgress
#endif
);
}
public virtual Task<object> BatchTaskAsync(FacebookBatchParameter[] batchParameters, object userToken, CancellationToken cancellationToken
#if ASYNC_AWAIT
, System.IProgress<FacebookUploadProgressChangedEventArgs> uploadProgress
#endif
)
{
var parameters = PrepareBatchRequest(batchParameters);
return PostTaskAsync(null, parameters, userToken, cancellationToken
#if ASYNC_AWAIT
, null
#endif
);
}
private List<FacebookBatchParameter> BuildParameters()
{
List<FacebookBatchParameter> parameters = new List<FacebookBatchParameter>();
foreach (long friend in shareList)
{
FacebookBatchParameter param = new FacebookBatchParameter();
param.HttpMethod = HttpMethod.Post;
param.Path = string.Format("/{0}/feed", friend.ToString());
Dictionary<string, object> extenParam = new Dictionary<string, object>();
extenParam.Add("link", "www.friendsflock.cloudapp.com");
extenParam.Add("message", message);
param.Parameters = extenParam;
parameters.Add(param);
}
return parameters;
}
internal object PrepareBatchRequest(FacebookBatchParameter[] batchParameters)
{
if (batchParameters == null)
throw new ArgumentNullException("batchParameters");
if (batchParameters.Length == 0)
throw new ArgumentNullException("batchParameters", AtLeastOneBatchParameterRequried);
IDictionary<string, object> actualBatchParameter = new Dictionary<string, object>();
IList<object> flatnedBatchParameters = new List<object>();
actualBatchParameter["batch"] = flatnedBatchParameters;
foreach (var batchParameter in batchParameters)
{
IDictionary<string, FacebookMediaObject> mediaObjects;
IDictionary<string, FacebookMediaStream> mediaStreams;
var data = ToDictionary(batchParameter.Data, out mediaObjects, out mediaStreams);
if (mediaObjects.Count + mediaStreams.Count > 0)
throw new ArgumentException("Attachments (FacebookMediaObject/FacebookMediaStream) are only allowed in FacebookBatchParameter.Parameters");
if (data == null)
data = new Dictionary<string, object>();
if (!data.ContainsKey("method"))
{
switch (batchParameter.HttpMethod)
{
case HttpMethod.Get:
data["method"] = "GET";
break;
case HttpMethod.Post:
data["method"] = "POST";
break;
case HttpMethod.Delete:
data["method"] = "DELETE";
break;
default:
throw new ArgumentOutOfRangeException();
}
}
IList<string> attachedFiles = new List<string>();
var parameters = ToDictionary(batchParameter.Parameters, out mediaObjects, out mediaStreams) ?? new Dictionary<string, object>();
bool containsEtag = false;
string etag = null;
if (parameters.ContainsKey(ETagKey))
{
etag = (string)parameters[ETagKey];
containsEtag = true;
parameters.Remove(ETagKey);
}
bool hasAttachmentInBatchParameter = false;
foreach (var attachment in mediaObjects)
{
if (hasAttachmentInBatchParameter)
throw new ArgumentException(OnlyOneAttachmentAllowedPerBatchRequest, "batchParameters");
if (actualBatchParameter.ContainsKey(attachment.Key))
throw new ArgumentException(string.Format("Attachment (FacebookMediaObject/FacebookMediaStream) with key '{0}' already exists", attachment.Key));
attachedFiles.Add(HttpHelper.UrlEncode(attachment.Key));
actualBatchParameter.Add(attachment.Key, attachment.Value);
hasAttachmentInBatchParameter = true;
}
foreach (var attachment in mediaStreams)
{
if (hasAttachmentInBatchParameter)
throw new ArgumentException(OnlyOneAttachmentAllowedPerBatchRequest, "batchParameters");
if (actualBatchParameter.ContainsKey(attachment.Key))
throw new ArgumentException(string.Format("Attachment (FacebookMediaObject/FacebookMediaStream) with key '{0}' already exists", attachment.Key));
attachedFiles.Add(HttpHelper.UrlEncode(attachment.Key));
actualBatchParameter.Add(attachment.Key, attachment.Value);
hasAttachmentInBatchParameter = true;
}
if (attachedFiles.Count > 0 && !data.ContainsKey("attached_files"))
data["attached_files"] = string.Join(",", attachedFiles.ToArray());
string path;
if (!data["method"].ToString().Equals("POST", StringComparison.OrdinalIgnoreCase))
{
if (!data.ContainsKey("relative_url"))
{
path = ParseUrlQueryString(batchParameter.Path, parameters, false);
SerializeParameters(parameters);
var relativeUrl = new StringBuilder();
relativeUrl.Append(path).Append("?");
foreach (var kvp in parameters)
relativeUrl.AppendFormat("{0}={1}&", HttpHelper.UrlEncode(kvp.Key), HttpHelper.UrlEncode(BuildHttpQuery(kvp.Value, HttpHelper.UrlEncode)));
if (relativeUrl.Length > 0)
relativeUrl.Length--;
data["relative_url"] = relativeUrl.ToString();
}
}
else
{
path = ParseUrlQueryString(batchParameter.Path, parameters, false);
SerializeParameters(parameters);
if (!data.ContainsKey("relative_url"))
{
if (path.Length > 0)
data["relative_url"] = path;
}
if (!data.ContainsKey("body"))
{
var sb = new StringBuilder();
foreach (var kvp in parameters)
sb.AppendFormat("{0}={1}&", HttpHelper.UrlEncode(kvp.Key), HttpHelper.UrlEncode(BuildHttpQuery(kvp.Value, HttpHelper.UrlEncode)));
if (sb.Length > 0)
{
sb.Length--;
data["body"] = sb.ToString();
}
}
}
if (containsEtag)
data[ETagKey] = etag;
flatnedBatchParameters.Add(data);
}
return actualBatchParameter;
}
public virtual void BatchAsync(FacebookBatchParameter[] batchParameters)
{
BatchAsync(batchParameters, null);
}
public virtual void BatchAsync(FacebookBatchParameter[] batchParameters, object userToken)
{
var parameters = PrepareBatchRequest(batchParameters);
PostAsync(null, parameters, userToken);
}
public virtual Task<object> BatchTaskAsync(FacebookBatchParameter[] batchParameters, object userToken, object parameters, CancellationToken cancellationToken)
{
return BatchTaskAsync(batchParameters, userToken, parameters, cancellationToken, null);
}
/// <summary>
/// Converts the facebook batch to POST parameters.
/// </summary>
/// <param name="batchParameter">
/// The batch parameter.
/// </param>
/// <returns>
/// The post parameters.
/// </returns>
protected IDictionary <string, object> ToParameters(FacebookBatchParameter batchParameter)
{
Contract.Requires(batchParameter != null);
Contract.Ensures(Contract.Result <IDictionary <string, object> >() != null);
IDictionary <string, object> returnResult = null;
var defaultParameters = new Dictionary <string, object>();
defaultParameters["method"] = FacebookUtils.ConvertToString(batchParameter.HttpMethod);
IDictionary <string, object> parameters = null;
if (batchParameter.Parameters == null)
{
parameters = new Dictionary <string, object>();
}
else
{
if (batchParameter.Parameters is IDictionary <string, object> )
{
parameters = (IDictionary <string, object>)batchParameter.Parameters;
}
else
{
parameters = FacebookUtils.ToDictionary(batchParameter.Parameters);
}
}
var path = FacebookUtils.ParseQueryParametersToDictionary(batchParameter.Path, parameters);
string queryString = string.Empty;
if (batchParameter.HttpMethod == HttpMethod.Get)
{
queryString = FacebookUtils.ToJsonQueryString(parameters);
}
else
{
defaultParameters["body"] = FacebookUtils.ToJsonQueryString(parameters);
}
var relativeUrl = new StringBuilder(path);
if (!string.IsNullOrEmpty(queryString))
{
relativeUrl.AppendFormat("?{0}", queryString);
}
defaultParameters["relative_url"] = relativeUrl.ToString();
var data = batchParameter.Data;
if (data == null)
{
returnResult = defaultParameters;
}
else
{
if (!(data is IDictionary <string, object>))
{
data = FacebookUtils.ToDictionary(batchParameter.Data);
}
returnResult = FacebookUtils.Merge(defaultParameters, (IDictionary <string, object>)data);
}
return(returnResult);
}
public virtual void BatchAsync(FacebookBatchParameter[] batchParameters, object userState)
{
BatchAsync(batchParameters, userState, null);
}
public virtual void BatchAsync(FacebookBatchParameter[] batchParameters, object userState, object parameters)
{
var actualParameter = PrepareBatchRequest(batchParameters, parameters);
PostAsync(null, actualParameter, userState);
}
public virtual void GivenNullFqlInQueryThrowsArgumentNullException()
{
var bp = new FacebookBatchParameter();
Assert.Throws<ArgumentNullException>(() => bp.Query((string)null));
}
public virtual void GivenEmptyFqlInMultiQueryThrowsArgumentException()
{
var bp = new FacebookBatchParameter();
Assert.Throws<ArgumentException>(() => bp.Query(new string[] { }));
}
