mirror of
https://github.com/Kareadita/Kavita.git
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c5b62d00d0
* Added the ability to see when a scan started at. * filename based hashing now uses last write time as well to ensure if the underlying file changes it sends a new copy * Fixed a bug where we would reset dark mode on the book reader to dark mode if our site was on dark mode, despite user setting light mode. * Added a single feed entry when some sort of collection, reading list, etc doesn't have anything in it. * Allow + in the normalization to prevent some series that use + to denote the sequel from not getting merged together.
52 lines
2.2 KiB
C#
52 lines
2.2 KiB
C#
using System.IO;
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using System.Linq;
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using System.Text;
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using System.Text.Json;
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using API.Helpers;
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using Microsoft.AspNetCore.Http;
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namespace API.Extensions
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{
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public static class HttpExtensions
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{
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public static void AddPaginationHeader(this HttpResponse response, int currentPage,
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int itemsPerPage, int totalItems, int totalPages)
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{
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var paginationHeader = new PaginationHeader(currentPage, itemsPerPage, totalItems, totalPages);
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var options = new JsonSerializerOptions()
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{
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PropertyNamingPolicy = JsonNamingPolicy.CamelCase
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};
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response.Headers.Add("Pagination", JsonSerializer.Serialize(paginationHeader, options));
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response.Headers.Add("Access-Control-Expose-Headers", "Pagination");
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}
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/// <summary>
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/// Calculates SHA256 hash for a byte[] and sets as ETag. Ensures Cache-Control: private header is added.
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/// </summary>
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/// <param name="response"></param>
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/// <param name="content">If byte[] is null or empty, will only add cache-control</param>
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public static void AddCacheHeader(this HttpResponse response, byte[] content)
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{
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if (content == null || content.Length <= 0) return;
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using var sha1 = new System.Security.Cryptography.SHA256CryptoServiceProvider();
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response.Headers.Add("ETag", string.Concat(sha1.ComputeHash(content).Select(x => x.ToString("X2"))));
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}
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/// <summary>
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/// Calculates SHA256 hash for a cover image filename and sets as ETag. Ensures Cache-Control: private header is added.
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/// </summary>
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/// <param name="response"></param>
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/// <param name="filename"></param>
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public static void AddCacheHeader(this HttpResponse response, string filename)
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{
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if (filename == null || filename.Length <= 0) return;
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var hashContent = filename + File.GetLastWriteTimeUtc(filename);
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using var sha1 = new System.Security.Cryptography.SHA256CryptoServiceProvider();
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response.Headers.Add("ETag", string.Concat(sha1.ComputeHash(Encoding.UTF8.GetBytes(hashContent)).Select(x => x.ToString("X2"))));
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}
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}
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}
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