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Code Issues 2 Packages Projects Releases 10 Wiki Activity

feat: add test sound command and enable notifications by default

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This commit is contained in:
HueByte
2026-02-19 22:42:20 +01:00
parent 107152298e
commit f20ce3d50f
8 changed files with 89 additions and 188 deletions
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src/EchoHub.Server/Services/LinkEmbedService.cs
+13 -76
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@@ -10,16 +10,13 @@ namespace EchoHub.Server.Services;
public partial class LinkEmbedService
{
private readonly IHttpClientFactory _httpClientFactory;
private readonly ImageToAsciiService _asciiService;
private readonly ILogger<LinkEmbedService> _logger;
public LinkEmbedService(
IHttpClientFactory httpClientFactory,
ImageToAsciiService asciiService,
ILogger<LinkEmbedService> logger)
{
_httpClientFactory = httpClientFactory;
_asciiService = asciiService;
_logger = logger;
}
@@ -111,15 +108,7 @@ public partial class LinkEmbedService
siteName = siteName is not null ? WebUtility.HtmlDecode(siteName) : null;
description = description is not null ? WebUtility.HtmlDecode(description) : null;
// Attempt to fetch OG image as small icon
string? imageAscii = null;
var imageUrl = ogTags.GetValueOrDefault("image");
if (!string.IsNullOrWhiteSpace(imageUrl))
{
imageAscii = await FetchImageThumbnailAsync(imageUrl, uri, cts.Token);
}
return new EmbedDto(siteName, title, description, imageAscii, url);
return new EmbedDto(siteName, title, description, null, url);
}
private static List<string> ExtractUrls(string content)
@@ -169,78 +158,26 @@ public partial class LinkEmbedService
var tags = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
// Match: <meta property="og:key" content="value" />
// Groups: 1=prop quote, 2=key, 3=content quote, 4=value
foreach (Match match in OgTagRegex().Matches(html))
{
var key = match.Groups[1].Value;
var value = match.Groups[2].Value;
var key = match.Groups[2].Value;
var value = match.Groups[4].Value;
tags.TryAdd(key, value);
}
// Match reversed order: <meta content="value" property="og:key" />
// Groups: 1=content quote, 2=value, 3=prop quote, 4=key
foreach (Match match in OgTagReversedRegex().Matches(html))
{
var value = match.Groups[1].Value;
var key = match.Groups[2].Value;
var value = match.Groups[2].Value;
var key = match.Groups[4].Value;
tags.TryAdd(key, value);
}
return tags;
}
private async Task<string?> FetchImageThumbnailAsync(string imageUrl, Uri pageUri, CancellationToken ct)
{
try
{
// Resolve relative image URLs against the page URI
if (!Uri.TryCreate(imageUrl, UriKind.Absolute, out var imageUri))
{
if (!Uri.TryCreate(pageUri, imageUrl, out imageUri))
return null;
}
if (imageUri.Scheme is not ("http" or "https"))
return null;
if (IsPrivateHost(imageUri))
return null;
var client = _httpClientFactory.CreateClient("OgFetch");
using var response = await client.GetAsync(imageUri, ct);
if (!response.IsSuccessStatusCode)
return null;
var contentType = response.Content.Headers.ContentType?.MediaType;
if (contentType is null || !contentType.StartsWith("image/", StringComparison.OrdinalIgnoreCase))
return null;
await using var stream = await response.Content.ReadAsStreamAsync(ct);
// Buffer into a MemoryStream for validation + conversion
using var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream, ct);
if (memoryStream.Length == 0 || memoryStream.Length > HubConstants.MaxFileSizeBytes)
return null;
memoryStream.Position = 0;
if (!FileValidationHelper.IsValidImage(memoryStream))
return null;
memoryStream.Position = 0;
return _asciiService.ConvertToAscii(memoryStream,
HubConstants.EmbedIconWidth,
HubConstants.EmbedIconHeight);
}
catch (Exception ex)
{
_logger.LogDebug(ex, "Failed to fetch OG image thumbnail from {Url}", imageUrl);
return null;
}
}
private static async Task<string> ReadLimitedAsync(HttpResponseMessage response, int maxBytes, CancellationToken ct)
{
await using var stream = await response.Content.ReadAsStreamAsync(ct);
@@ -263,17 +200,17 @@ public partial class LinkEmbedService
return encoding.GetString(buffer, 0, totalRead);
}
[GeneratedRegex(@"https?://[^\s<>""')\]]+", RegexOptions.IgnoreCase)]
[GeneratedRegex(@"https?://[^\s<>""')\]]+", RegexOptions.IgnoreCase | RegexOptions.Compiled)]
private static partial Regex UrlRegex();
[GeneratedRegex(@"<meta\s+[^>]*?property\s*=\s*[""']og:(\w+)[""'][^>]*?content\s*=\s*[""']([^""']*)[""'][^>]*/?>",
RegexOptions.IgnoreCase | RegexOptions.Singleline)]
[GeneratedRegex(@"<meta\s+[^>]*?property\s*=\s*([""'])og:(\w+)\1[^>]*?content\s*=\s*([""'])(.*?)\3[^>]*/?>",
RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled)]
private static partial Regex OgTagRegex();
[GeneratedRegex(@"<meta\s+[^>]*?content\s*=\s*[""']([^""']*)[""'][^>]*?property\s*=\s*[""']og:(\w+)[""'][^>]*/?>",
RegexOptions.IgnoreCase | RegexOptions.Singleline)]
[GeneratedRegex(@"<meta\s+[^>]*?content\s*=\s*([""'])(.*?)\1[^>]*?property\s*=\s*([""'])og:(\w+)\3[^>]*/?>",
RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled)]
private static partial Regex OgTagReversedRegex();
[GeneratedRegex(@"<title[^>]*>([^<]+)</title>", RegexOptions.IgnoreCase)]
[GeneratedRegex(@"<title[^>]*>([^<]+)</title>", RegexOptions.IgnoreCase | RegexOptions.Compiled)]
private static partial Regex TitleTagRegex();
}