feat: add webdav and export files to strm (#39)

feat: improves
fix: error on download root files
fix: error on download splitted files

Author: mateof

TelegramDownloader/Controllers/FileController.cs

@@ -267,6 +267,19 @@ public async Task<IActionResult> GetFile(string id, string? idChannel, string? i
             };
         }
 
+        [Route("strm")]
+        public async Task<IActionResult> GetStrm([FromQuery] string idChannel, [FromQuery] string path, [FromQuery] string host)
+        {
+            String zip = await _fs.CreateStrmFiles(path, idChannel, host);
+
+            FileStream fs = new FileStream(zip, FileMode.Open);
+
+            return new FileStreamResult(fs, "application/octet-stream")
+            {
+                FileDownloadName = Path.GetFileName(zip)
+            };
+        }
+
         [Route("GetFileStream/{idChannel}/{idFile}/{name}")]
         public async Task<IActionResult> GetFileStream(string idChannel, string idFile, string name)
         {
@@ -275,6 +288,7 @@ public async Task<IActionResult> GetFileStream(string idChannel, string idFile,
 
             var request = HttpContext.Request;
             var rangeHeader = request.Headers["Range"].ToString();
+            Console.WriteLine("range: ", rangeHeader);
 
             var file = await _fs.getItemById(idChannel, idFile);
             long totalLength = file.Size;

TelegramDownloader/Controllers/WebDavController.cs

@@ -0,0 +1,81 @@
+using Microsoft.AspNetCore.Mvc;
+using TelegramDownloader.Data.db;
+using TelegramDownloader.Data;
+using TelegramDownloader.Models;
+using System.Text.Json;
+
+namespace TelegramDownloader.Controllers
+{
+    [Route("api/nodes")]
+    [ApiController]
+    public class WebDavController : ControllerBase
+    {
+        IDbService _db { get; set; }
+
+        public WebDavController(IDbService db)
+        {
+            _db = db;
+        }
+        [HttpGet]
+        public async Task<List<WebDavFileModel>> webDavPaths([FromQuery] string path, [FromQuery] string depth)
+        {
+            Console.WriteLine("Peticion de webDavPaths: " + path);
+            var isFile = Path.HasExtension(path);
+            if (!path.EndsWith("/") && !isFile)
+                path = path + "/";
+            if (String.IsNullOrEmpty(path))
+                throw new BadHttpRequestException("Path is null or empty");
+            string channel = path.Split("/")[1];
+            if (String.IsNullOrEmpty(channel))
+                throw new BadHttpRequestException("Channel is empty");
+            path = path.Remove(0, path.IndexOf("/", 1));
+            List<WebDavFileModel> files = new List<WebDavFileModel>();
+            if (isFile)
+            {
+                var bsonFile = await _db.getFileByPath(channel, path);
+                if (!(bsonFile == null) && bsonFile.IsFile)
+                {
+                    WebDavFileModel file = bsonFile.toWebDavFileModel(channel);
+                    files = new List<WebDavFileModel>();
+                    files.Add(file);
+                }
+            }
+            if ((!isFile) || files.Count == 0)
+            {
+                if (depth == "0")
+                {
+                    var bsonFile = await _db.getFileByPath(channel, path[..^1]);
+                    if (bsonFile != null)
+                    {
+                        WebDavFileModel file = bsonFile.toWebDavFileModel(channel);
+                        files = new List<WebDavFileModel>();
+                        files.Add(file);
+                    }
+                    
+                }
+                else
+                    files = (await _db.getAllFilesInDirectoryPath(channel, path)).Select(file => file.toWebDavFileModel()).ToList();
+            }
+                
+            // Console.WriteLine(JsonSerializer.Serialize(files));
+            return files;
+        }
+
+        [HttpGet("meta")]
+        public async Task<object> webDavMetadata([FromQuery] string path)
+        {
+            Console.WriteLine("Peticion de webDavMetadata: " + path);
+            if (String.IsNullOrEmpty(path))
+                throw new Exception("Path is null or empty");
+            string channel = path.Split("/")[1];
+            if (String.IsNullOrEmpty(channel))
+                throw new Exception("Channel is empty");
+            path = path.Remove(0, path.IndexOf("/", 1));
+            var bsonFile = await _db.getFileByPath(channel, path);
+            if (bsonFile == null || !bsonFile.IsFile)
+                throw new FileNotFoundException();
+            WebDavFileModel files = bsonFile.toWebDavFileModel(channel);
+            return files;
+        }
+    }
+}