46 lines
1.7 KiB
C#
46 lines
1.7 KiB
C#
using System.Net.Http.Headers;
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using System.Security.Authentication;
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using System.Text;
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using System.Text.Json.Serialization;
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using SpotifyAPI.Web;
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namespace SpotiParty.Web.Services;
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public sealed class AuthorizationHandler {
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private AuthResponse? _token;
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private class AuthResponse {
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[JsonPropertyName("access_token")]
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public string AccessToken { get; set; }
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[JsonPropertyName("token_type")]
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public string TokenType { get; set; }
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[JsonPropertyName("expires_in")]
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public int ExpiresIn { get; set; }
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}
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public async Task<SpotifyClient> ConfigureClient() {
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if (_token is null) {
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var fileLines = await File.ReadAllLinesAsync(Path.Combine(Environment.CurrentDirectory, ".dev-token"));
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var clientId = fileLines[0];
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var clientSecret = fileLines[1];
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var basicAuthToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{clientId}:{clientSecret}"));
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var httpClient = new HttpClient();
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httpClient.DefaultRequestHeaders.Authorization = AuthenticationHeaderValue.Parse($"Basic {basicAuthToken}");
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var response = await httpClient.PostAsync("https://accounts.spotify.com/api/token", new FormUrlEncodedContent(new[] {
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new KeyValuePair<string, string>("grant_type", "client_credentials")
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}));
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response.EnsureSuccessStatusCode();
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_token = await response.Content.ReadFromJsonAsync<AuthResponse>();
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if (_token is null) throw new AuthenticationException("Spotify auth failed!");
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}
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return new SpotifyClient(_token.AccessToken, _token.TokenType);
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}
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} |