Initial commit

2026-06-02 10:51:14 +02:00
commit d19092c84e
182 changed files with 13757 additions and 0 deletions
@@ -0,0 +1,88 @@
+using System.Runtime.CompilerServices;
+using Microsoft.SharePoint.Client;
+using SharepointToolbox.Web.Core.Models;
+
+namespace SharepointToolbox.Web.Core.Helpers;
+
+public static class SharePointPaginationHelper
+{
+    private const int DefaultRowLimit = 5000;
+
+    public static async IAsyncEnumerable<ListItem> GetAllItemsAsync(
+        ClientContext ctx,
+        List list,
+        CamlQuery? baseQuery = null,
+        [EnumeratorCancellation] CancellationToken ct = default)
+    {
+        var query = baseQuery ?? CamlQuery.CreateAllItemsQuery();
+        query.ViewXml = BuildPagedViewXml(query.ViewXml, DefaultRowLimit);
+        query.ListItemCollectionPosition = null;
+
+        do
+        {
+            ct.ThrowIfCancellationRequested();
+            var items = list.GetItems(query);
+            ctx.Load(items);
+            await ctx.ExecuteQueryAsync();
+            foreach (var item in items) yield return item;
+            query.ListItemCollectionPosition = items.ListItemCollectionPosition;
+        }
+        while (query.ListItemCollectionPosition != null);
+    }
+
+    public static async IAsyncEnumerable<ListItem> GetItemsInFolderAsync(
+        ClientContext ctx,
+        List list,
+        string folderServerRelativeUrl,
+        bool recursive,
+        string[]? viewFields = null,
+        [EnumeratorCancellation] CancellationToken ct = default)
+    {
+        var fields = viewFields ?? new[]
+        {
+            "FSObjType", "FileRef", "FileLeafRef", "FileDirRef", "File_x0020_Size"
+        };
+        var viewFieldsXml = string.Join(string.Empty, fields.Select(f => $"<FieldRef Name='{f}' />"));
+        var scope = recursive ? " Scope='RecursiveAll'" : string.Empty;
+        var viewXml =
+            $"<View{scope}><Query></Query>" +
+            $"<ViewFields>{viewFieldsXml}</ViewFields>" +
+            $"<RowLimit Paged='TRUE'>{DefaultRowLimit}</RowLimit></View>";
+
+        var query = new CamlQuery
+        {
+            ViewXml = viewXml,
+            FolderServerRelativeUrl = folderServerRelativeUrl,
+            ListItemCollectionPosition = null
+        };
+
+        do
+        {
+            ct.ThrowIfCancellationRequested();
+            var items = list.GetItems(query);
+            ctx.Load(items);
+            await ctx.ExecuteQueryAsync();
+            foreach (var item in items) yield return item;
+            query.ListItemCollectionPosition = items.ListItemCollectionPosition;
+        }
+        while (query.ListItemCollectionPosition != null);
+    }
+
+    internal static string BuildPagedViewXml(string? existingXml, int rowLimit)
+    {
+        if (string.IsNullOrWhiteSpace(existingXml))
+            return $"<View><RowLimit Paged='TRUE'>{rowLimit}</RowLimit></View>";
+        if (System.Text.RegularExpressions.Regex.IsMatch(
+                existingXml, @"<RowLimit[^>]*>\d+</RowLimit>",
+                System.Text.RegularExpressions.RegexOptions.IgnoreCase))
+        {
+            return System.Text.RegularExpressions.Regex.Replace(
+                existingXml, @"<RowLimit[^>]*>\d+</RowLimit>",
+                $"<RowLimit Paged='TRUE'>{rowLimit}</RowLimit>",
+                System.Text.RegularExpressions.RegexOptions.IgnoreCase);
+        }
+        return existingXml.Replace("</View>",
+            $"<RowLimit Paged='TRUE'>{rowLimit}</RowLimit></View>",
+            StringComparison.OrdinalIgnoreCase);
+    }
+}