Tag Archives: pnp

Modifying SharePoint list permissions with PnP Core

Posted on May 20, 2024 by Dan

Working with SharePoint permissions is not always straight forward. This code snippet is an exercise using PnP Core to modify permissions on lists with unique (broken) permissions. All assigned permissions are changed to read only, except for owners group of … Continue reading →

Posted in Development | Tagged c#, permissions, pnp, pnpcore, sharepoint | Leave a comment

A faster way to get effective permissions with PnP Core

Posted on March 17, 2023 by Dan

PnP Core SDK has built in functionality to get effective permissions for a user on a list item in SharePoint:

IList list = await context.Web.Lists.GetByTitleAsync(listName);
IListItem item = await list.Items.GetByIdAsync(itemId);
IBasePermissions permissions = await item.GetUserEffectivePermissionsAsync(upn);

IList list = await context.Web.Lists.GetByTitleAsync(listName);

IListItem item = await list.Items.GetByIdAsync(itemId);

IBasePermissions permissions = await item.GetUserEffectivePermissionsAsync(upn);

This is pretty slow; typically ~1000ms. So I tried calling the REST API directly instead:

var apiRequest = new ApiRequest(ApiRequestType.SPORest, "/_api/web/lists/getbytitle('" + listName + "')/items(" + itemId + ")/getusereffectivepermissions(@u)?@u='" + Uri.EscapeDataString("i:0#.f|membership|" + upn) + "'");
var response = await context.Web.ExecuteRequestAsync(apiRequest);
JsonNode json = JsonNode.Parse(response.Response)!;
IBasePermissions permissions = context.Web.EffectiveBasePermissions;
permissions.High = Convert.ToInt64(json["d"]!["GetUserEffectivePermissions"]!["High"]!.GetValue<string>());
permissions.Low = Convert.ToInt64(json["d"]!["GetUserEffectivePermissions"]!["Low"]!.GetValue<string>());

var apiRequest = new ApiRequest(ApiRequestType.SPORest, "/_api/web/lists/getbytitle('" + listName + "')/items(" + itemId + ")/getusereffectivepermissions(@u)?@u='" + Uri.EscapeDataString("i:0#.f|membership|" + upn) + "'");

var response = await context.Web.ExecuteRequestAsync(apiRequest);

JsonNode json = JsonNode.Parse(response.Response)!;

IBasePermissions permissions = context.Web.EffectiveBasePermissions;

permissions.High = Convert.ToInt64(json["d"]!["GetUserEffectivePermissions"]!["High"]!.GetValue<string>());

permissions.Low = Convert.ToInt64(json["d"]!["GetUserEffectivePermissions"]!["Low"]!.GetValue<string>());

Turns out this … Continue reading →

Posted in Development, Tips | Tagged c#, permissions, pnp, pnpcore, sharepoint, sharepoint rest | Leave a comment

Finding out what service created a SharePoint site

Posted on January 4, 2023 by Dan

SharePoint is the underpinning data storage for many Microsoft 365 services. Sites are are therefore created under the hood by many services. Sometimes it it useful to know from where a site was created. We can actually find this in … Continue reading →

Posted in Development | Tagged microsoft 365, office 365, pnp, powershell, sharepoint online | Leave a comment

Tag Archives: pnp

Modifying SharePoint list permissions with PnP Core

A faster way to get effective permissions with PnP Core

Finding out what service created a SharePoint site

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Tag Archives: pnp

Modifying SharePoint list permissions with PnP Core

A faster way to get effective permissions with PnP Core

Finding out what service created a SharePoint site

About RLV Blog

Recent Posts

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Tags

Popular Posts

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