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Fix social embed #98

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merged 2 commits into from
Jan 13, 2024
Merged

Fix social embed #98

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7a9cc26
docs: add documentation for SocialLinkEmbedFixer
bgwastu Jan 13, 2024
4616f9b
fix: fixing social embed feature
bgwastu Jan 13, 2024
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9 changes: 5 additions & 4 deletions BotNet.CommandHandlers/BotUpdate/Message/MessageUpdateHandler.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -44,16 +44,17 @@ await _commandQueue.DispatchAsync(

// Handle Social Link (better preview)
if ((update.Message.Text ?? update.Message.Caption) is { } textOrCaption) {
IEnumerable<Uri> betterLinks = SocialLinkEmbedFixer.GetPossibleUrls(textOrCaption);
IEnumerable<Uri> possibleUrls = SocialLinkEmbedFixer.GetPossibleUrls(textOrCaption);

if (betterLinks.Any()) {
if (possibleUrls.Any()) {
// Fire and forget
Task _ = Task.Run(async () => {
try {
foreach (Uri betterLink in betterLinks) {
foreach (Uri url in possibleUrls) {
Uri fixedUrl = SocialLinkEmbedFixer.Fix(url);
await _telegramBotClient.SendTextMessageAsync(
chatId: update.Message.Chat.Id,
text: $"Preview: {betterLink.OriginalString}",
text: $"Preview: {fixedUrl.OriginalString}",
replyToMessageId: update.Message.MessageId,
cancellationToken: cancellationToken
);
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11 changes: 11 additions & 0 deletions BotNet.Services/SocialLink/SocialLinkEmbedFixer.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,12 @@

namespace BotNet.Services.SocialLink {
public partial class SocialLinkEmbedFixer {

/// <summary>
/// Fixes the given URI by replacing specific host names with new host names.
/// </summary>
/// <param name="link">The original URI to be fixed.</param>
/// <returns>A new URI with the host names replaced.</returns>
public static Uri Fix(Uri link) {
string url = link.ToString();
string newUrl = link.Host switch {
Expand All @@ -18,6 +24,11 @@ public static Uri Fix(Uri link) {
return new Uri(newUrl);
}

/// <summary>
/// Extracts possible URLs from the given message that match Twitter and Instagram patterns.
/// </summary>
/// <param name="message">The message to search for URLs.</param>
/// <returns>An enumerable collection of URLs.</returns>
public static IEnumerable<Uri> GetPossibleUrls(string message) {
MatchCollection twitterMatches = TwitterRegex().Matches(message);
foreach (Match match in twitterMatches) {
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