public async Task <Nav> GetNavAsync()
{
if (_navPerRequest != null)
{
return(_navPerRequest);
}
Nav nav = null;
string navHash = ComputeNavHash();
if (!string.IsNullOrWhiteSpace(navHash))
{
DirectoryInfo pagesDirectory = _pageIOManager.GetPagesDirectory();
DirectoryInfo cacheDirectory = _cacheManager.GetCacheDirectory();
_cacheManager.ClearCache();
string navCachename = navHash + Cache.NavPostfix;
string navCache = await _cacheManager.LoadFromCacheAsync(navCachename);
if (!string.IsNullOrEmpty(navCache))
{
try
{
nav = JObject.Parse(navCache).ToObject <Nav>();
}
catch (Exception ex)
{
_logger.LogError(ex, "Invalid nav cache");
}
}
if (nav == null)
{
_cacheManager.ClearCache("*" + Cache.NavPostfix);
nav = new Nav(await GetNavItemsAsync(pagesDirectory, new List <Folder>()));
await _cacheManager.SaveToCacheAsync(navCachename, JObject.FromObject(nav).ToString(Formatting.None));
}
}
return(_navPerRequest = nav ?? Nav.Empty);
}
public byte[] ExportDump()
{
string path = _pageIOManager.GetPagesDirectory().FullName;
using (MemoryStream outputMemoryStream = new MemoryStream())
{
using (ZipOutputStream zipOutputStream = new ZipOutputStream(outputMemoryStream))
{
zipOutputStream.SetLevel(5);
CompressFolder(path, zipOutputStream, path.Length + (path.EndsWith("\\") ? 0 : 1));
zipOutputStream.IsStreamOwner = false;
zipOutputStream.Close();
outputMemoryStream.Position = 0;
return(outputMemoryStream.ToArray());
}
}
}
public async Task <Page> EditPageAsync(PagePath pagePath, string markdown)
{
if (pagePath == null)
{
throw new ArgumentNullException(nameof(pagePath));
}
DirectoryInfo pagesDirectory = _pageIOManager.GetPagesDirectory();
FileInfo pageFileInfo = new FileInfo(Path.Combine(pagesDirectory.FullName, pagePath.ToString()));
string pageLocationHash = Hasher.GetMd5Hash(pagePath.Location.GetDirectoryPath());
string pageCachename = pageLocationHash + "_" + pageFileInfo.LastWriteTime.ToString("yyyyMMddHHmmss") + Cache.PagePostfix;
_cacheManager.ClearCache(pageCachename);
await _pageIOManager.SavePage(pageFileInfo.FullName, markdown);
PageData pageData = await GetPageDataAsync(pagePath);
PageMetadata pageMetadata = await GetPageMetadataAsync(pagePath);
return(new Page(new PageContext(pagePath, pageMetadata), pageData));
}