97 lines
4.4 KiB
C#
97 lines
4.4 KiB
C#
namespace podcast_agent
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{
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using System.Xml.Linq;
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using Newtonsoft.Json;
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class Program
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{
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static async Task Main(string[] args)
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{
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var conf = Configure();
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var downloader = new HttpClient();
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downloader.DefaultRequestHeaders.UserAgent.ParseAdd(conf.UserAgent);
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XNamespace ns = "http://www.itunes.com/dtds/podcast-1.0.dtd";
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foreach (var feed in conf.FeedCommands)
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{
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try
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{
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var xml = XDocument.Load(feed.Url);
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foreach (var item in xml.Descendants("item"))
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{
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var title = item.Element("title")?.Value;
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var ext = ".wav";
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var attachmentLink = item.Element("enclosure")?.Attribute("url")?.Value.ToString();
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var probableFilename = attachmentLink.Substring(0, attachmentLink.IndexOf('?'));
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if (probableFilename.LastIndexOf('.') > 0)
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{
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ext = probableFilename.Substring(probableFilename.LastIndexOf('.'));
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}
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foreach(char c in "'\":\\?/")
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{
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title = title.Replace(c, ' ');
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}
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Console.WriteLine($"{title}, {attachmentLink}");
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var downloadPath = Path.Combine(feed.OutputDir, title + ext);
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var dlResult = (await downloader.GetAsync(attachmentLink));
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if(dlResult.IsSuccessStatusCode)
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{
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if(feed.KeepCount != null && feed.KeepCount > 0)
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{
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var files = Directory.GetFiles(feed.OutputDir, "*" + ext);
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//Console.WriteLine($"in {feed.OutputDir}, I see {files.Count()} files with extension {ext}");
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if(files.Length > feed.KeepCount - 1)
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{
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files = files.Order().Take(files.Length - (int)feed.KeepCount + 1).ToArray();
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//Console.WriteLine($"filtered down to {files.Length}");
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foreach(var f in files)
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{
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Console.WriteLine($"deleting {f}");
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File.Delete(f);
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}
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}
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}
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File.WriteAllBytes(downloadPath, await dlResult.Content.ReadAsByteArrayAsync());
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}
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}
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}
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catch (Exception e)
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{
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Console.Error.WriteLine($"failed attempting to dl {feed} -");
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Console.Error.WriteLine(e);
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}
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}
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}
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static Configuration Configure(string configurationPath = "appsettings.json")
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{
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if (!File.Exists(configurationPath))
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{
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Console.Error.WriteLine($"could not find configuration at {configurationPath}! copying sample to that spot.");
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File.Copy("sample-appsettings.json", configurationPath); //and you know what, if that explodes at the OS level, the OS should give you an error
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return null;
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}
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var fileContents = File.ReadAllText(configurationPath);
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if (string.IsNullOrWhiteSpace(fileContents))
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{
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Console.Error.WriteLine($"configuration file at {configurationPath} was empty! overwriting with sample settings.");
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File.Copy("sample-appsettings.json", configurationPath, true);
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return null;
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}
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var conf = JsonConvert.DeserializeObject<Configuration>(fileContents);
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if (conf == null)
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{
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Console.Error.WriteLine($"configuration file at {configurationPath} was empty! overwriting with sample settings.");
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File.Copy("sample-appsettings.json", configurationPath, true);
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return null;
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}
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return conf;
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}
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}
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}
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