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Merge pull request #2558 from Yusyuriv/add-duckduckgo-web-search-suggestions

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Implement DuckDuckGo web search suggestions
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Kevin Zhang 2024-02-11 00:29:21 -06:00 committed by GitHub
commit bc62302a93
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2 changed files with 56 additions and 1 deletions
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3
Plugins/Flow.Launcher.Plugin.WebSearch/Settings.cs
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@ -197,7 +197,8 @@ namespace Flow.Launcher.Plugin.WebSearch
public SuggestionSource[] Suggestions { get; set; } = {
new Google(),
new Baidu(),
new Bing()
new Bing(),
new DuckDuckGo()
};
[JsonIgnore]

54
Plugins/Flow.Launcher.Plugin.WebSearch/SuggestionSources/DuckDuckGo.cs Normal file
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@ -0,0 +1,54 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Flow.Launcher.Infrastructure.Http;
using Flow.Launcher.Infrastructure.Logger;
using System.Net.Http;
using System.Threading;
using System.Text.Json;
namespace Flow.Launcher.Plugin.WebSearch.SuggestionSources
{
public class DuckDuckGo : SuggestionSource
{
public override async Task<List<string>> SuggestionsAsync(string query, CancellationToken token)
{
// When the search query is empty, DuckDuckGo returns `[]`. When it's not empty, it returns data
// in the following format: `["query", ["suggestion1", "suggestion2", ...]]`.
if (string.IsNullOrEmpty(query))
{
return new List<string>();
}
try
{
const string api = "https://duckduckgo.com/ac/?type=list&q=";
await using var resultStream = await Http.GetStreamAsync(api + Uri.EscapeDataString(query), token: token).ConfigureAwait(false);
using var json = await JsonDocument.ParseAsync(resultStream, cancellationToken: token);
var results = json.RootElement.EnumerateArray().ElementAt(1);
return results.EnumerateArray().Select(o => o.GetString()).ToList();
}
catch (Exception e) when (e is HttpRequestException or {InnerException: TimeoutException})
{
Log.Exception("|DuckDuckGo.Suggestions|Can't get suggestion from DuckDuckGo", e);
return null;
}
catch (JsonException e)
{
Log.Exception("|DuckDuckGo.Suggestions|can't parse suggestions", e);
return new List<string>();
}
}
public override string ToString()
{
return "DuckDuckGo";
}
}
}