last ...

2026-10-02 22:12:46 +03:30
parent 4521a53734
commit c30d93be0b
8 changed files with 347 additions and 0 deletions
@@ -0,0 +1,79 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using xAiApi.Interfaces.Extractors;
+using DocumentFormat.OpenXml.Drawing;
+using DocumentFormat.OpenXml.Packaging;
+
+namespace xAiApi.Providers.Extractors
+{
+    /// <summary>
+    /// Extracts text content from DOCX files using DocumentFormat.OpenXml ...
+    /// </summary>    
+    public class XDocxFileContentExtractor : IXDocxFileContentExtractor
+    {
+        /// <summary>
+        /// Supported MIME Types ...
+        /// </summary>
+        private static readonly string[] SupportedMimeTypes =
+        [
+            "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
+        ];
+
+        /// <summary>
+        /// Check if this extractor supports the specified MIME type ...
+        /// </summary>
+        public bool CanExtract(string mimeType)
+        {
+            //
+            return SupportedMimeTypes.Contains(
+                mimeType?.ToLowerInvariant() ?? string.Empty
+            );
+        }
+
+        /// <summary>
+        /// Extract text content from file stream ...
+        /// </summary>
+        public async Task<string> ExtractAsync(
+            Stream fileStream,
+            string mimeType,
+            CancellationToken cancellationToken = default
+        )
+        {
+            //
+            using var memoryStream = new MemoryStream();
+            await fileStream.CopyToAsync(memoryStream, cancellationToken);
+            memoryStream.Position = 0;
+
+            //
+            var stringBuilder = new StringBuilder();
+
+            //
+            using (var wordDocument = WordprocessingDocument.Open(memoryStream, false))
+            {
+                //
+                var body = wordDocument.MainDocumentPart?.Document?.Body;
+                if (body != null)
+                {
+                    //
+                    var paragraphs = body.Elements<Paragraph>();
+                    foreach (var paragraph in paragraphs)
+                    {
+                        //
+                        var text = paragraph.InnerText?.Trim();
+                        if (!string.IsNullOrEmpty(text))
+                        {
+                            stringBuilder.AppendLine(text);
+                        }
+                    }
+                }
+            }
+
+            //
+            return stringBuilder.ToString();
+        }
+    }
+}