Samuel Attard
7 years ago
9 changed files with 364 additions and 32 deletions
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using System; |
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using System.Collections.Generic; |
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using System.Collections.Specialized; |
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using System.Diagnostics; |
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using LastFMAPI; |
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using System.Net; |
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using System.Net.Http; |
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using System.Security.Cryptography; |
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using System.Threading.Tasks; |
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using System.Text; |
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|
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namespace Google_Play_Music |
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{ |
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class LastFM |
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{ |
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private string username; |
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private string password; |
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public static string user_key = null; |
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|
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private const string API_KEY = ""; |
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private const string API_SECRET = ""; |
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|
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public LastFM() |
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{ |
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this.username = Properties.Settings.Default.LastFMUsername; |
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this.password = Properties.Settings.Default.LastFMPassword; |
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} |
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|
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public LastFM(string username, string password) |
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{ |
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this.username = username; |
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this.password = password; |
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} |
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|
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public async Task init() |
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{ |
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await attemptLogIn(); |
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} |
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|
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public async Task attemptLogIn() |
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{ |
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if (username == "Username" || password == "1234567") |
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{ |
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return; |
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} |
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Dictionary<String, String> attrs = new Dictionary<string, string>(); |
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attrs["password"] = password; |
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attrs["username"] = username; |
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string api_sig = signMethod("auth.getMobileSession", attrs); |
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string requestURL = "https://ws.audioscrobbler.com/2.0/?method=auth.getMobileSession&username=" + username + |
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"&password=" + password + |
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"&api_key=" + API_KEY + "&api_sig=" + api_sig + |
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"&format=json"; |
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|
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string auth_response = await fetchURL(requestURL); |
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|
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if (auth_response == "") |
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{ |
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user_key = null; |
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return; |
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} |
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|
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AuthenticationResponse auth = new System.Web.Script.Serialization.JavaScriptSerializer().Deserialize<AuthenticationResponse>(auth_response); |
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user_key = auth.session.key; |
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return; |
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} |
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|
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private async Task<string> fetchURL(string URL) |
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{ |
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using (var client = new HttpClient()) |
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{ |
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Dictionary<string, string> values = new Dictionary<string, string>(); |
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FormUrlEncodedContent content = new FormUrlEncodedContent(values); |
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|
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try |
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{ |
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HttpResponseMessage response = await client.PostAsync(URL, content); |
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if (response.StatusCode != HttpStatusCode.OK) |
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{ |
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return ""; |
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} |
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string responseString = await response.Content.ReadAsStringAsync(); |
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|
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return responseString; |
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} |
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catch (Exception e) |
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{ |
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return ""; |
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} |
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} |
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} |
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|
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private string signMethod(string method, Dictionary<string, string> attributes) |
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{ |
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string stringToSign = "api_key" + API_KEY + "method" + method; |
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List<string> keys = new List<string>(attributes.Keys); |
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keys.Sort(); |
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foreach (string key in keys) |
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{ |
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stringToSign += key + attributes[key]; |
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} |
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stringToSign += API_SECRET; |
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return BitConverter.ToString(((HashAlgorithm)CryptoConfig.CreateFromName("MD5")).ComputeHash(new UTF8Encoding().GetBytes(stringToSign))).Replace("-", string.Empty).ToLower(); |
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} |
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} |
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} |
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|
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namespace LastFMAPI |
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{ |
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public class AuthenticationResponse |
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{ |
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public AuthenticationSession session { get; set; } |
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} |
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|
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public class AuthenticationSession |
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{ |
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public int subscriber { get; set; } |
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public string name { get; set; } |
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public string key { get; set; } |
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} |
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} |
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