btcpayserver/BTCPayServer/Views/Server/Files.cshtml

@model ViewFilesViewModel
@{
    ViewData.SetActivePageAndTitle(ServerNavPages.Files);
}


<partial name="_StatusMessage" />

<h4>File Storage</h4>
<div class="form-group">
    <span>Change your <a asp-action="Services" asp-route-returnurl="@ViewData["ReturnUrl"]">external storage service</a> provider</span>
    <a href="https://docs.btcpayserver.org/FAQ/FAQ-ServerSettings/#how-to-upload-files-to-btcpay" target="_blank"><span class="fa fa-question-circle-o" title="More information..."></span></a>
</div>
<table class="table table-sm table-responsive-md">
    <thead>
        <tr>
            <th>Name</th>
            <th>Timestamp</th>
            <th>User</th>
            <th></th>
        </tr>
    </thead>
    <tbody>
        @foreach (var file in Model.Files)
        {
            <tr>
                <td>@file.FileName</td>
                <td>@file.Timestamp.ToBrowserDate2()</td>
                <td>@file.ApplicationUser.UserName</td>
                <td>
                    <a asp-action="Files" asp-route-fileId="@file.Id">Get Link</a>
                    - <a asp-action="CreateTemporaryFileUrl" asp-route-fileId="@file.Id">Get Temp Link</a>
                    - <a asp-action="DeleteFile" asp-route-fileId="@file.Id">Remove</a>
                </td>
            </tr>
        }
        @if (!Model.Files.Any())
        {
            <tr>
                <td colspan="4" class="text-center">No files</td>
            </tr>
        }
    </tbody>
</table>

@if (!string.IsNullOrEmpty(Model.SelectedFileId))
{
    var file = Model.Files.Single(storedFile => storedFile.Id.Equals(Model.SelectedFileId, StringComparison.InvariantCultureIgnoreCase));
    <div class="card mb-2">
        <div class="card-text">
            <ul class="list-group list-group-flush">
                <li class="list-group-item">
                    @file.FileName
                </li>

                <li class="list-group-item">
                    <div class="row px-0 mx-0">
                        <span class="col-sm-12 col-md-2">Url: </span>
                        <a class="col-sm-12 col-md-10 text-right" asp-action="GetFile" asp-controller="Storage" asp-route-fileId="@Model.SelectedFileId" target="_blank">
                            @Url.Action("GetFile", "Storage", new
                            {
                                fileId = Model.SelectedFileId
                            }, Context.Request.Scheme, Context.Request.Host.ToString(), Context.Request.PathBase.ToString())
                        </a>
                    </div>
                </li>
                <li class="list-group-item ">
                    <div class="row px-0 mx-0">
                        <span class="col-sm-12 col-md-2">Direct Url </span>
                        <a class="col-sm-12 col-md-10 text-right" href="@Model.DirectFileUrl" target="_blank">@Model.DirectFileUrl</a>
                    </div>
                </li>
            </ul>
        </div>
    </div>
}

@if (Model.StorageConfigured)
{
    <div class="card">
        <form asp-action="CreateFile" method="post" enctype="multipart/form-data">

            <div class="card-body">
                <h3 class="header">Upload File</h3>

                <div class="custom-file">
                    <input type="file" class="custom-file-input" name="file" id="file" required>
                    <label class="custom-file-label" for="customFile">Choose file</label>
                </div>

            </div>
            <div class="card-footer">
                <button class="btn btn-primary" role="button"><span class="fa fa-plus"></span> Upload file</button>
            </div>
        </form>
    </div>

    @section Scripts {
        <script>
            $(document).ready(function () {

                $('.custom-file-input').on('change',
                    function () {
                        var label = $(this).next('label');
                        if (document.getElementById("file").files.length > 0) {
                            var fileName = document.getElementById("file").files[0].name;
                            label.addClass("selected").html(fileName);
                        } else {
                            label.removeClass("selected").html("Choose file");
                        }
                    });
            });
        </script>
    }
}