private async Task <FileResult> GetChannelTemplateAsync(VisualInfo visualInfo, StringBuilder contentBuilder)
{
var nodeInfo = await _channelRepository.GetAsync(visualInfo.ChannelId);
if (nodeInfo == null)
{
return(null);
}
if (nodeInfo.ParentId > 0)
{
if (!string.IsNullOrEmpty(nodeInfo.LinkUrl))
{
HttpContext.Response.Redirect(nodeInfo.LinkUrl);
return(null);
}
}
var stlLabelList = ParseUtils.GetStlLabels(contentBuilder.ToString());
//如果标签中存在Content
var stlContentElement = string.Empty;
foreach (var label in stlLabelList)
{
if (StlParserUtility.IsStlChannelElement(label, StlParserUtility.PageContent))
{
stlContentElement = label;
break;
}
}
if (!string.IsNullOrEmpty(stlContentElement)) //内容存在
{
var innerBuilder = new StringBuilder(stlContentElement);
await _parseManager.ParseInnerContentAsync(innerBuilder);
var contentAttributeHtml = innerBuilder.ToString();
var pageCount = StringUtils.GetCount(Constants.PagePlaceHolder, contentAttributeHtml) + 1; //一共需要的页数
if (pageCount > 1)
{
await _parseManager.ParseAsync(contentBuilder, visualInfo.FilePath, true);
for (var currentPageIndex = 0; currentPageIndex < pageCount; currentPageIndex++)
{
var index = contentAttributeHtml.IndexOf(Constants.PagePlaceHolder, StringComparison.Ordinal);
var length = index == -1 ? contentAttributeHtml.Length : index;
if (currentPageIndex == visualInfo.PageIndex)
{
var pagedContentAttributeHtml = contentAttributeHtml.Substring(0, length);
var pagedBuilder = new StringBuilder(contentBuilder.ToString()
.Replace(stlContentElement, pagedContentAttributeHtml));
await _parseManager.ReplacePageElementsInChannelPageAsync(pagedBuilder, stlLabelList, currentPageIndex, pageCount, 0);
return(GetResponse(pagedBuilder.ToString()));
}
if (index != -1)
{
contentAttributeHtml =
contentAttributeHtml.Substring(length + Constants.PagePlaceHolder.Length);
}
}
return(null);
}
contentBuilder.Replace(stlContentElement, contentAttributeHtml);
}
if (ParseUtils.IsStlElementExists(StlPageContents.ElementName, stlLabelList)) //如果标签中存在<stl:pageContents>
{
var stlElement = ParseUtils.GetStlElement(StlPageContents.ElementName, stlLabelList);
var stlElementTranslated = _parseManager.StlEncrypt(stlElement);
var pageContentsElementParser = await StlPageContents.GetAsync(stlElement, _parseManager);
var(pageCount, totalNum) = pageContentsElementParser.GetPageCount();
await _parseManager.ParseAsync(contentBuilder, visualInfo.FilePath, true);
for (var currentPageIndex = 0; currentPageIndex < pageCount; currentPageIndex++)
{
if (currentPageIndex == visualInfo.PageIndex)
{
var pageHtml = await pageContentsElementParser.ParseAsync(totalNum, currentPageIndex, pageCount, false);
var pagedBuilder = new StringBuilder(contentBuilder.ToString().Replace(stlElementTranslated, pageHtml));
await _parseManager.ReplacePageElementsInChannelPageAsync(pagedBuilder, stlLabelList, currentPageIndex, pageCount, totalNum);
return(GetResponse(pagedBuilder.ToString()));
}
}
}
else if (ParseUtils.IsStlElementExists(StlPageChannels.ElementName, stlLabelList)) //如果标签中存在<stl:pageChannels>
{
var stlElement = ParseUtils.GetStlElement(StlPageChannels.ElementName, stlLabelList);
var stlElementTranslated = _parseManager.StlEncrypt(stlElement);
var pageChannelsElementParser = await StlPageChannels.GetAsync(stlElement, _parseManager);
var pageCount = pageChannelsElementParser.GetPageCount(out var totalNum);
await _parseManager.ParseAsync(contentBuilder, visualInfo.FilePath, true);
for (var currentPageIndex = 0; currentPageIndex < pageCount; currentPageIndex++)
{
if (currentPageIndex == visualInfo.PageIndex)
{
var pageHtml = await pageChannelsElementParser.ParseAsync(currentPageIndex, pageCount);
var pagedBuilder = new StringBuilder(contentBuilder.ToString().Replace(stlElementTranslated, pageHtml));
await _parseManager.ReplacePageElementsInChannelPageAsync(pagedBuilder, stlLabelList, currentPageIndex, pageCount, totalNum);
return(GetResponse(pagedBuilder.ToString()));
}
}
}
//如果标签中存在<stl:pageSqlContents>
else if (ParseUtils.IsStlElementExists(StlPageSqlContents.ElementName, stlLabelList))
{
var stlElement = ParseUtils.GetStlElement(StlPageSqlContents.ElementName, stlLabelList);
var stlElementTranslated = _parseManager.StlEncrypt(stlElement);
var pageSqlContentsElementParser = await StlPageSqlContents.GetAsync(stlElement, _parseManager);
var pageCount = pageSqlContentsElementParser.GetPageCount(out var totalNum);
await _parseManager.ParseAsync(contentBuilder, visualInfo.FilePath, true);
for (var currentPageIndex = 0; currentPageIndex < pageCount; currentPageIndex++)
{
if (currentPageIndex == visualInfo.PageIndex)
{
var pageHtml = await pageSqlContentsElementParser.ParseAsync(totalNum, currentPageIndex, pageCount, false);
var pagedBuilder = new StringBuilder(contentBuilder.ToString().Replace(stlElementTranslated, pageHtml));
await _parseManager.ReplacePageElementsInChannelPageAsync(pagedBuilder, stlLabelList, currentPageIndex, pageCount, totalNum);
return(GetResponse(pagedBuilder.ToString()));
}
}
}
await _parseManager.ParseAsync(contentBuilder, visualInfo.FilePath, true);
return(GetResponse(contentBuilder.ToString()));
}
