/// <summary>
/// Internal private method to process an HTTP request toward the ThemeManager REST APIs
/// </summary>
/// <param name="context">The current ClientContext of CSOM</param>
/// <param name="action">The action to perform</param>
/// <param name="postObject">The body of the request</param>
/// <param name="accessToken">An optional Access Token for OAuth authorization</param>
/// <returns>A boolean declaring whether the operation was successful</returns>
private static async Task <bool> BaseRequest(ClientContext context, ThemeAction action, Object postObject, String accessToken = null)
{
var result = false;
context.Web.EnsureProperty(w => w.Url);
#pragma warning disable CA2000 // Dispose objects before losing scope
var httpClient = PnPHttpClient.Instance.GetHttpClient(context);
#pragma warning restore CA2000 // Dispose objects before losing scope
// Reference here: https://docs.microsoft.com/en-us/sharepoint/dev/declarative-customization/site-theming/sharepoint-site-theming-rest-api
string requestUrl = $"{context.Web.Url}/_api/thememanager/{action}";
// Always make a POST request
using (HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, requestUrl))
{
request.Headers.Add("ACCEPT", "application/json; odata.metadata=minimal");
request.Headers.Add("ODATA-VERSION", "4.0");
await PnPHttpClient.AuthenticateRequestAsync(request, context).ConfigureAwait(false);
if (postObject != null)
{
var jsonBody = JsonConvert.SerializeObject(postObject);
var requestBody = new StringContent(jsonBody);
MediaTypeHeaderValue sharePointJsonMediaType;
MediaTypeHeaderValue.TryParse("application/json;charset=utf-8", out sharePointJsonMediaType);
requestBody.Headers.ContentType = sharePointJsonMediaType;
request.Content = requestBody;
}
// Perform actual post operation
HttpResponseMessage response = await httpClient.SendAsync(request, new System.Threading.CancellationToken());
if (response.IsSuccessStatusCode)
{
// If value empty, URL is taken
var responseString = await response.Content.ReadAsStringAsync();
if (responseString != null)
{
try
{
var responseJson = JObject.Parse(responseString);
result = true;
}
catch { }
}
}
else
{
// Something went wrong...
throw new Exception(await response.Content.ReadAsStringAsync());
}
}
return(await Task.Run(() => result));
}
/// <summary>
/// Internal private method to process an HTTP request toward the ThemeManager REST APIs
/// </summary>
/// <param name="context">The current ClientContext of CSOM</param>
/// <param name="action">The action to perform</param>
/// <param name="postObject">The body of the request</param>
/// <param name="accessToken">An optional Access Token for OAuth authorization</param>
/// <returns>A boolean declaring whether the operation was successful</returns>
private static async Task <bool> BaseRequest(ClientContext context, ThemeAction action, Object postObject, String accessToken = null)
{
var result = false;
// If we don't have the access token
if (String.IsNullOrEmpty(accessToken))
{
// Try to get one from the current context
accessToken = context.GetAccessToken();
}
using (var handler = new HttpClientHandler())
{
context.Web.EnsureProperty(w => w.Url);
// We're not in app-only or user + app context, so let's fall back to cookie based auth
if (String.IsNullOrEmpty(accessToken))
{
handler.SetAuthenticationCookies(context);
}
using (var httpClient = new PnPHttpProvider(handler))
{
// Reference here: https://docs.microsoft.com/en-us/sharepoint/dev/declarative-customization/site-theming/sharepoint-site-theming-rest-api
string requestUrl = $"{context.Web.Url}/_api/thememanager/{action.ToString()}";
// Always make a POST request
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, requestUrl);
request.Headers.Add("ACCEPT", "application/json; odata.metadata=minimal");
if (!string.IsNullOrEmpty(accessToken))
{
request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);
}
request.Headers.Add("X-RequestDigest", await context.GetRequestDigestAsync());
request.Headers.Add("ODATA-VERSION", "4.0");
if (postObject != null)
{
var jsonBody = JsonConvert.SerializeObject(postObject);
var requestBody = new StringContent(jsonBody);
MediaTypeHeaderValue sharePointJsonMediaType;
MediaTypeHeaderValue.TryParse("application/json;charset=utf-8", out sharePointJsonMediaType);
requestBody.Headers.ContentType = sharePointJsonMediaType;
request.Content = requestBody;
}
// Perform actual post operation
HttpResponseMessage response = await httpClient.SendAsync(request, new System.Threading.CancellationToken());
if (response.IsSuccessStatusCode)
{
// If value empty, URL is taken
var responseString = await response.Content.ReadAsStringAsync();
if (responseString != null)
{
try
{
var responseJson = JObject.Parse(responseString);
result = true;
}
catch { }
}
}
else
{
// Something went wrong...
throw new Exception(await response.Content.ReadAsStringAsync());
}
}
}
return(await Task.Run(() => result));
}
