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Rename BitcoinUrlBuilder to BitcoinUriBuilder
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,198 @@ | ||
| #nullable enable | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Net; | ||
| #if !NOHTTPCLIENT | ||
| using System.Net.Http; | ||
| using System.Net.Http.Headers; | ||
| #endif | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
| using System.Web; | ||
| using System.Web.NBitcoin; | ||
| using System.Runtime.ExceptionServices; | ||
|
|
||
| namespace NBitcoin.Payment | ||
| { | ||
| /// <summary> | ||
| /// https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki | ||
| /// </summary> | ||
| public class BitcoinUriBuilder | ||
| { | ||
| public BitcoinUriBuilder(Network network) | ||
| { | ||
| Network = network; | ||
| scheme = network.UriScheme; | ||
| } | ||
| public BitcoinUriBuilder(Uri uri, Network network) | ||
| : this(uri.AbsoluteUri, network) | ||
| { | ||
| if (uri == null) | ||
| throw new ArgumentNullException(nameof(uri)); | ||
| } | ||
|
|
||
| public Network Network { get; } | ||
| string scheme; | ||
|
|
||
| public BitcoinUriBuilder(string uri, Network network) | ||
| { | ||
| if (uri == null) | ||
| throw new ArgumentNullException(nameof(uri)); | ||
| if (network == null) | ||
| throw new ArgumentNullException(nameof(network)); | ||
| scheme = network.UriScheme; | ||
| if (!uri.StartsWith($"{scheme}:", StringComparison.OrdinalIgnoreCase)) | ||
| { | ||
| if (uri.StartsWith("bitcoin:", StringComparison.OrdinalIgnoreCase)) | ||
| scheme = "bitcoin"; | ||
| else | ||
| throw new FormatException("Invalid scheme"); | ||
| } | ||
| Network = network; | ||
| uri = uri.Remove(0, $"{scheme}:".Length); | ||
| if (uri.StartsWith("//")) | ||
| uri = uri.Remove(0, 2); | ||
|
|
||
| var paramStart = uri.IndexOf('?'); | ||
| string? address = null; | ||
| if (paramStart == -1) | ||
| address = uri; | ||
| else | ||
| { | ||
| address = uri.Substring(0, paramStart); | ||
| uri = uri.Remove(0, 1); //remove ? | ||
| } | ||
| if (address != String.Empty) | ||
| { | ||
| Address = Network.Parse<BitcoinAddress>(address, network); | ||
| } | ||
| uri = uri.Remove(0, address.Length); | ||
|
|
||
| Dictionary<string, string> parameters; | ||
| try | ||
| { | ||
| parameters = UriHelper.DecodeQueryParameters(uri); | ||
| } | ||
| catch (ArgumentException) | ||
| { | ||
| throw new FormatException("A URI parameter is duplicated"); | ||
| } | ||
| if (parameters.ContainsKey("amount")) | ||
| { | ||
| Amount = Money.Parse(parameters["amount"]); | ||
| parameters.Remove("amount"); | ||
| } | ||
| if (parameters.ContainsKey("label")) | ||
| { | ||
| Label = parameters["label"]; | ||
| parameters.Remove("label"); | ||
| } | ||
| if (parameters.ContainsKey("message")) | ||
| { | ||
| Message = parameters["message"]; | ||
| parameters.Remove("message"); | ||
| } | ||
| _UnknownParameters = parameters; | ||
| var reqParam = parameters.Keys.FirstOrDefault(k => k.StartsWith("req-", StringComparison.OrdinalIgnoreCase)); | ||
| if (reqParam != null) | ||
| throw new FormatException("Non compatible required parameter " + reqParam); | ||
| } | ||
|
|
||
| private readonly Dictionary<string, string> _UnknownParameters = new Dictionary<string, string>(); | ||
| public IReadOnlyDictionary<string, string> UnknownParameters | ||
| { | ||
| get | ||
| { | ||
| return _UnknownParameters; | ||
| } | ||
| } | ||
| [Obsolete("Use UnknownParameters property")] | ||
| public Dictionary<string, string> UnknowParameters | ||
| { | ||
| get | ||
| { | ||
| return _UnknownParameters; | ||
| } | ||
| } | ||
|
|
||
| public BitcoinAddress? Address | ||
| { | ||
| get; | ||
| set; | ||
| } | ||
| public Money? Amount | ||
| { | ||
| get; | ||
| set; | ||
| } | ||
| public string? Label | ||
| { | ||
| get; | ||
| set; | ||
| } | ||
| public string? Message | ||
| { | ||
| get; | ||
| set; | ||
| } | ||
| public Uri Uri | ||
| { | ||
| get | ||
| { | ||
| Dictionary<string, string> parameters = new Dictionary<string, string>(); | ||
| StringBuilder builder = new StringBuilder(); | ||
| builder.Append($"{scheme}:"); | ||
| if (Address != null) | ||
| { | ||
| builder.Append(Address.ToString()); | ||
| } | ||
|
|
||
| if (Amount != null) | ||
| { | ||
| parameters.Add("amount", Amount.ToString(false, true)); | ||
| } | ||
| if (Label != null) | ||
| { | ||
| parameters.Add("label", Label.ToString()); | ||
| } | ||
| if (Message != null) | ||
| { | ||
| parameters.Add("message", Message.ToString()); | ||
| } | ||
|
|
||
| foreach (var kv in UnknownParameters) | ||
| { | ||
| parameters.Add(kv.Key, kv.Value); | ||
| } | ||
|
|
||
| WriteParameters(parameters, builder); | ||
|
|
||
| return new System.Uri(builder.ToString(), UriKind.Absolute); | ||
| } | ||
| } | ||
|
|
||
| private static void WriteParameters(Dictionary<string, string> parameters, StringBuilder builder) | ||
| { | ||
| bool first = true; | ||
| foreach (var parameter in parameters) | ||
| { | ||
| if (first) | ||
| { | ||
| first = false; | ||
| builder.Append("?"); | ||
| } | ||
| else | ||
| builder.Append("&"); | ||
| builder.Append(parameter.Key); | ||
| builder.Append("="); | ||
| builder.Append(System.Web.NBitcoin.HttpUtility.UrlEncode(parameter.Value)); | ||
| } | ||
| } | ||
|
|
||
| public override string ToString() | ||
| { | ||
| return Uri.AbsoluteUri; | ||
| } | ||
| } | ||
| } |
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