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AttributeFormatter.cs

using System.Net;
using System.Text;
using Nop.Core;
using Nop.Core.Domain.Attributes;
using Nop.Core.Domain.Catalog;
using Nop.Services.Html;
using Nop.Services.Localization;

namespace Nop.Services.Attributes;

/// 
/// Attribute formatter
/// 
public partial class
    AttributeFormatter : IAttributeFormatter
    where TAttribute : BaseAttribute
    where TAttributeValue : BaseAttributeValue
{
    #region Fields

    protected readonly IAttributeParser _attributeParser;
    protected readonly IAttributeService _attributeService;
    protected readonly IHtmlFormatter _htmlFormatter;
    protected readonly ILocalizationService _localizationService;
    protected readonly IWorkContext _workContext;

    #endregion

    #region Ctor

    public AttributeFormatter(IAttributeParser attributeParser,
        IAttributeService attributeService,
        IHtmlFormatter htmlFormatter,
        ILocalizationService localizationService,
        IWorkContext workContext)
    {
        _attributeParser = attributeParser;
        _attributeService = attributeService;
        _htmlFormatter = htmlFormatter;
        _localizationService = localizationService;
        _workContext = workContext;
    }

    #endregion

    #region Methods

    /// 
    /// Formats attributes
    /// 
    /// Attributes in XML format
    /// Separator
    /// A value indicating whether to encode (HTML) values
    /// 
    /// A task that represents the asynchronous operation
    /// The task result contains the attributes
    /// 
    public virtual async Task FormatAttributesAsync(string attributesXml,
        string separator = "
", bool htmlEncode = true) { var result = new StringBuilder(); var currentLanguage = await _workContext.GetWorkingLanguageAsync(); var attributes = await _attributeParser.ParseAttributesAsync(attributesXml); for (var i = 0; i < attributes.Count; i++) { var attribute = attributes[i]; var valuesStr = _attributeParser.ParseValues(attributesXml, attribute.Id); for (var j = 0; j < valuesStr.Count; j++) { var valueStr = valuesStr[j]; var formattedAttribute = string.Empty; if (!attribute.ShouldHaveValues) { //no values if (attribute.AttributeControlType == AttributeControlType.MultilineTextbox) { //multiline textbox var attributeName = await _localizationService.GetLocalizedAsync(attribute, a => a.Name, currentLanguage.Id); //encode (if required) if (htmlEncode) attributeName = WebUtility.HtmlEncode(attributeName); formattedAttribute = $"{attributeName}: {_htmlFormatter.FormatText(valueStr, false, true, false, false, false, false)}"; //we never encode multiline textbox input } else if (attribute.AttributeControlType == AttributeControlType.FileUpload) { //file upload //not supported for this attributes } else { //other attributes (textbox, datepicker) formattedAttribute = $"{await _localizationService.GetLocalizedAsync(attribute, a => a.Name, currentLanguage.Id)}: {valueStr}"; //encode (if required) if (htmlEncode) formattedAttribute = WebUtility.HtmlEncode(formattedAttribute); } } else { if (int.TryParse(valueStr, out var attributeValueId)) { var attributeValue = await _attributeService.GetAttributeValueByIdAsync(attributeValueId); if (attributeValue != null) formattedAttribute = $"{await _localizationService.GetLocalizedAsync(attribute, a => a.Name, currentLanguage.Id)}: {await _localizationService.GetLocalizedAsync(attributeValue, a => a.Name, currentLanguage.Id)}"; //encode (if required) if (htmlEncode) formattedAttribute = WebUtility.HtmlEncode(formattedAttribute); } } if (string.IsNullOrEmpty(formattedAttribute)) continue; if (i != 0 || j != 0) result.Append(separator); result.Append(formattedAttribute); } } return result.ToString(); } #endregion }