28 lines
1.1 KiB
C#
28 lines
1.1 KiB
C#
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using Elsa.Http.Options;
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using Elsa.Http.Services;
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using Microsoft.Extensions.Options;
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namespace Elsa.Http.Implementations;
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public class DefaultAbsoluteUrlProvider : IAbsoluteUrlProvider
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{
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private readonly IOptions<HttpActivityOptions> _options;
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public DefaultAbsoluteUrlProvider(IOptions<HttpActivityOptions> options) => _options = options;
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public Uri ToAbsoluteUrl(string relativePath)
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{
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var baseUrl = _options.Value.BaseUrl;
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if (baseUrl == null)
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throw new Exception(
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"There was no base URL configured, which means no absolute URL can be generated from outside the context of an HTTP request. Please make sure that `HttpActivityOptions` is configured correctly. The configuration key used in most Elsa samples is usually: \"Elsa:Server:BaseUrl\"");
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// To not lose any base path information, we need to ensure that:
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// - Base path ends with a slash.
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// - Relative path does NOT start with a slash.
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var baseUri = new Uri(baseUrl.ToString().TrimEnd('/') + '/');
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relativePath = relativePath.TrimStart('/');
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return new Uri(baseUri, relativePath);
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}
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}
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