116 lines
4.6 KiB
Plaintext
116 lines
4.6 KiB
Plaintext
@using System.Net.Http;
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@using System.Text.Json;
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@using TSC2.Components.Layout;
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@page "/signin-facebook"
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@inject NavigationManager _navigationManager
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@code {
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[Parameter][SupplyParameterFromQuery] public string? code { get; set; }
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[Parameter][SupplyParameterFromQuery] public string? scope { get; set; }
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[Parameter][SupplyParameterFromQuery] public string? authuser { get; set; }
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[Parameter][SupplyParameterFromQuery] public string? prompt { get; set; }
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protected override async Task OnAfterRenderAsync(bool firstRender) // Executes every page load; run inexpensive rendering code here
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{
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if (!firstRender)
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return;
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var dct = new Dictionary<string, string>();
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dct["client_id"] = TSC2.Components.CSharp.Credentials.FacebookAppId;
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dct["redirect_uri"] = TSC2.Components.Layout.MainLayout.FacebookRedirect;
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dct["client_secret"] = TSC2.Components.CSharp.Credentials.FacebookClientSecret;
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dct["code"] = code;
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try
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{
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string auth_json = "";
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string profile_json = "";
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// Get access token for the auth session
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using(var client = new HttpClient())
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using(var content = new FormUrlEncodedContent(dct))
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{
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HttpResponseMessage response = await client.GetAsync(string.Format("https://graph.facebook.com/v20.0/oauth/access_token?client_id={0}&redirect_uri={1}&client_secret={2}&code={3}", dct["client_id"], dct["redirect_uri"], dct["client_secret"], dct["code"]));
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auth_json = await response.Content.ReadAsStringAsync();
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}
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OAuthTokenResponse tokenResponse = JsonSerializer.Deserialize<OAuthTokenResponse>(auth_json);
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Console.WriteLine("AUTH: " + auth_json);
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// Use the access token to access their information; name, email, & token
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using (var client = new HttpClient())
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{
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var id_json = await client.GetStringAsync("https://graph.facebook.com/me?fields=id&access_token=" + tokenResponse.access_token);
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FacebookAuthResponse id_response = JsonSerializer.Deserialize<FacebookAuthResponse>(id_json);
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Console.WriteLine("ID: " + id_response.id);
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// Configure the request
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List<KeyValuePair<string, string>> requestData = new List<KeyValuePair<string, string>>();
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requestData.Add(new KeyValuePair<string, string>("access_token", tokenResponse.access_token));
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var request = new HttpRequestMessage
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{
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Method = HttpMethod.Get,
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RequestUri = new Uri("https://graph.facebook.com/me?access_token=" + tokenResponse.access_token),
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Content = new FormUrlEncodedContent(requestData)
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};
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// Send the request
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var profile_task = await client.SendAsync(request);
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profile_json = await profile_task.Content.ReadAsStringAsync();
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}
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FacebookProfileResponse profileResponse = JsonSerializer.Deserialize<FacebookProfileResponse>(profile_json);
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Console.WriteLine("PROFILE: " + profile_json);
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if (MainLayout.Session.Count == 0) // Fpr security, only add to the session if nothing exists in the session.
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{
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MainLayout.Session.Add("id", profileResponse.id);
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MainLayout.Session.Add("name", profileResponse.name);
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MainLayout.UpdateGreeting();
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Console.WriteLine("Signed in successfully. (FB)");
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}
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_navigationManager.NavigateTo("/");
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}
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catch (Exception ex)
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{
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// Handler
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Console.WriteLine("ERORR" + ex);
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}
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}
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// Data classes to handle the Http responses
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public class OAuthTokenResponse
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{
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public string access_token { get; set; }
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public int expires_in { get; set; }
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public string refresh_token { get; set; }
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public string scope { get; set; }
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public string token_type { get; set; }
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public string id_token { get; set; }
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public string error { get; set; }
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public string error_description { get; set; }
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public bool IsSuccess => string.IsNullOrEmpty(error);
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}
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public class FacebookAuthResponse
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{
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public string id { get; set; }
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}
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public class FacebookProfileResponse
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{
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public string name { get; set; }
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public string first_name { get; set; }
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public string last_name { get; set; }
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public string id { get; set; }
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}
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} |