public static IFileInfo GetContentFileInfo(this PathString path, IFileProvider fileProvider)
{
string rPath = (path == null || !path.HasValue || path.Value == "") ? "/" : path.Value;
IFileInfo fileInfo = null;
try
{
fileInfo = fileProvider.GetFileInfo(rPath);
if (fileInfo == null)
{
fileInfo = new NotFoundFileInfo(rPath);
}
else if (fileInfo.Exists)
{
if (!fileInfo.IsDirectory)
{
return(fileInfo);
}
IDirectoryContents contents = fileProvider.GetDirectoryContents(rPath);
IFileInfo page = DefaultPageNames.Select(p => contents.FirstOrDefault(c => String.Equals(p, c.Name, StringComparison.InvariantCultureIgnoreCase)))
.FirstOrDefault(f => f != null);
if (page != null)
{
fileInfo = page;
}
}
} catch (Exception exception) { fileInfo = new GetFileError(rPath, exception); }
return(fileInfo);
}
public override DirectoryInfoBase GetDirectory(string name)
{
var isParentPath = name == "..";
if (!isParentPath)
{
IDirectoryContents contents = _fileProvider.GetDirectoryContents(FullName);
IFileInfo item;
return
// string comparison should depend on environment or some kind of setting,
// however it's irrelevant in this case as Matcher won't call this code
(contents.Exists && (item = contents.FirstOrDefault(it => it.IsDirectory && it.Name.Equals(name, StringComparison.OrdinalIgnoreCase))) != null ?
new GlobbingDirectoryInfo(_fileProvider, FullName, item.Name) :
null);
}
else
{
return(new GlobbingDirectoryInfo(_fileProvider, _path, isParentPath));
}
}
/// <summary>
/// This will never return null nor contain any null entries
/// </summary>
public async Task <NonNullImmutableList <Post> > Get()
{
// The redirects set contains tuples From, To slugs (blank lines and those starting with a "#" are ignored, as are any that don't have any whitespace)
const string redirectsFilename = "Redirects.txt";
var redirectsFile = _folder.FirstOrDefault(file => file.Name.Equals(redirectsFilename, StringComparison.OrdinalIgnoreCase));
IEnumerable <Tuple <string, string> > redirects;
if (redirectsFile == null)
{
redirects = new List <Tuple <string, string> >();
}
else
{
redirects = (await ReadFileContents(redirectsFile))
.Replace("\r\n", "\n")
.Replace("\r", "\n")
.Split('\n')
.Select(entry => entry.Trim())
.Where(entry => (entry != "") && !entry.StartsWith("#") && entry.Any(c => char.IsWhiteSpace(c)))
.Select(entry => new string(entry.Select(c => char.IsWhiteSpace(c) ? ' ' : c).ToArray()))
.Select(entry => entry.Split(new[] { ' ' }, 2))
.Select(values => Tuple.Create(values[0], values[1]));
}
// The relatedPostRelationships set contains a map of Post Id to Ids of related Posts (in the order that they should appear)
const string relatedPostsFilename = "RelatedPosts.txt";
var relatedPostsFile = _folder.FirstOrDefault(file => file.Name.Equals(relatedPostsFilename, StringComparison.OrdinalIgnoreCase));
var relatedPostRelationships = (relatedPostsFile == null)
? new Dictionary <int, ImmutableList <int> >()
: await ReadRedirects(relatedPostsFile);
// There is similar data in the AutoSuggestedRelatedPosts.txt file but the manually-created RelatedPosts.txt should take precedence in cases
// where Post Ids appear in both
const string autoSuggestedRelatedPostsFilename = "AutoSuggestedRelatedPosts.txt";
var autoSuggestedRelatedPostsFile = _folder.FirstOrDefault(file => file.Name.Equals(autoSuggestedRelatedPostsFilename, StringComparison.OrdinalIgnoreCase));
var autoSuggestedRelatedPostRelationships = (autoSuggestedRelatedPostsFile == null)
? new Dictionary <int, ImmutableList <int> >()
: await ReadRedirects(autoSuggestedRelatedPostsFile);
// We can use this functionality from the FullTextIndexer to generate the Post slug (it will replace accented characters, normalise whitespace,
// remove punctuation and lower case the content - all we need to do then is replace spaces with hypens)
var stringNormaliser = DefaultStringNormaliser.Instance;
var posts = new List <Post>();
foreach (var file in _folder.Where(file => file.Name.EndsWith(".txt", StringComparison.OrdinalIgnoreCase)))
{
if (file.Name.Equals(redirectsFilename, StringComparison.InvariantCultureIgnoreCase))
{
continue;
}
var fileSummary = TryToGetFileSummaryEntry(file.Name);
if (fileSummary != null)
{
var fileContents = await ReadFileContents(file);
var title = TryToGetTitle(fileContents);
if (title != null)
{
// 2014-09-17 DWR: Titles such as "C# State Machines" were being converted into "c-state-machines" which isn't as descriptive as
// I'd like, "c-sharp-state-machines" is better. The replacement is done for "C#" and "F#" (a space is required after the
// replacement content otherwise the "sharp" gets rolled into the next word)
var slugBase = title.Replace("C#", "c sharp ").Replace("F#", "f sharp ");
var slug = stringNormaliser.GetNormalisedString(slugBase).Replace(' ', '-');
var redirectsForPost = new NonNullOrEmptyStringList(
redirects.Where(r => r.Item2 == slug).Select(r => r.Item1)
);
// On this pass, set every tag's NumberOfPosts value to one since we don't have enough data to know better. After all of the
// posts have been loaded, this can be fixed before the method terminates.
if (!relatedPostRelationships.TryGetValue(fileSummary.Id, out var relatedPosts))
{
relatedPosts = null;
}
if ((relatedPosts != null) || !autoSuggestedRelatedPostRelationships.TryGetValue(fileSummary.Id, out var autoSuggestedRelatedPosts))
{
// Only check the autoSuggestedRelatedPostRelationships if there was no relatedPostRelationships entry - this allows for posts
// to be specified as having no suggestions (manually-specified or auto-suggested) by having an entry in the manually-specified
// file that has the post id but zero suggestions.
autoSuggestedRelatedPosts = null;
}
posts.Add(new Post(
fileSummary.Id,
fileSummary.PostDate,
file.LastModified.DateTime,
slug,
redirectsForPost,
title,
fileSummary.IsHighlight,
fileContents,
relatedPosts ?? new ImmutableList <int>(),
autoSuggestedRelatedPosts ?? new ImmutableList <int>(),
fileSummary.Tags.Select(tag => new TagSummary(tag, 1)).ToNonNullImmutableList()
));
}
}
}
var tagCounts = posts
.SelectMany(post => post.Tags)
.Select(tag => tag.Tag)
.GroupBy(tag => tag, StringComparer.OrdinalIgnoreCase)
.ToDictionary(groupedTag => groupedTag.Key, groupedTag => groupedTag.Count(), StringComparer.OrdinalIgnoreCase);
return(new NonNullImmutableList <Post>(posts.Select(post =>
new Post(
post.Id,
post.Posted,
post.LastModified,
post.Slug,
post.RedirectFromSlugs,
post.Title,
post.IsHighlight,
post.MarkdownContent,
post.RelatedPosts,
post.AutoSuggestedRelatedPosts,
post.Tags.Select(tag => new TagSummary(tag.Tag, tagCounts[tag.Tag])).ToNonNullImmutableList()
)
)));
}
public static IList <IFileCultureInfo> FindFiles(
string directory,
string extension,
ICultureExpression requestedCulture,
IHostingEnvironment env)
{
string filePath;
string targetName;
string fileNameWithoutCulture;
string nameNoExt;
string culture;
string filter;
string relativeParent;
int subLength;
int lastIndex;
string endsWithFilter = $".{extension}";
IEnumerable <IFileInfo> files;
IEnumerable <IFileInfo> dirs;
IFileProvider provider = env.ContentRootFileProvider;
IDirectoryContents contents = provider.GetDirectoryContents(directory);
List <IFileCultureInfo> result = new List <IFileCultureInfo>();
SortedSet <string> models = new SortedSet <string>();
if (requestedCulture.IsAllRegion)
{
// find by name
// **.en.ext
culture = requestedCulture.Language;
filter = $".{culture}.{extension}";
files = contents.Where(x => !x.IsDirectory && x.Name.EndsWith(filter));
subLength = filter.Length;
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{directory}/{targetName}"; // Path.Combine(parentPath, fileName)
fileNameWithoutCulture = targetName.Substring(0, targetName.Length - subLength);
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, requestedCulture));
models.Add(fileNameWithoutCulture);
}
// try find directory named with language
// en/**.ext
IFileInfo dir = contents.FirstOrDefault(x => x.IsDirectory && x.Name.Equals(culture));
if (dir != null)
{
relativeParent = $"{directory}/{culture}";
IDirectoryContents directoryContents = provider.GetDirectoryContents(relativeParent);
files = directoryContents.Where(x => !x.IsDirectory && x.Name.EndsWith(endsWithFilter));
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{relativeParent}/{targetName}";// Path.Combine(relatedParent, fileName)
fileNameWithoutCulture = Path.GetFileNameWithoutExtension(targetName);
if (!models.Contains(fileNameWithoutCulture))
{
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, requestedCulture));
models.Add(fileNameWithoutCulture);
}
}
}
// find the regions having the same language
// **.en-**.ext
filter = $@"\.{culture}-[a-zA-Z]{{2}}\.{extension}$";
Regex reg = new Regex(filter);
files = contents.Where(x => !x.IsDirectory && reg.IsMatch(x.Name));
foreach (IFileInfo file in files)
{
targetName = file.Name;
nameNoExt = Path.GetFileNameWithoutExtension(targetName);
lastIndex = nameNoExt.LastIndexOf('.');
fileNameWithoutCulture = targetName.Substring(0, lastIndex);
filePath = $"{directory}/{targetName}"; //Path.Combine(parentPath, fileName)
culture = nameNoExt.Substring(lastIndex + 1);
if (!models.Contains(fileNameWithoutCulture))
{
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, culture.ParseCultureExpression()));
models.Add(fileNameWithoutCulture);
}
}
// try find directory named with regions having the same language
// en-**/**.ext
filter = $"^{culture}-[a-zA-Z]{{2}}$";
reg = new Regex(filter);
dirs = contents.Where(x => x.IsDirectory && reg.IsMatch(x.Name));
foreach (IFileInfo langDir in dirs)
{
culture = langDir.Name;
ICultureExpression cultureExp = culture.ParseCultureExpression();
relativeParent = $"{directory}/{culture}"; //Path.Combine(parentPath, culture)
IDirectoryContents directoryContents = provider.GetDirectoryContents(relativeParent);
files = directoryContents.Where(x => !x.IsDirectory && x.Name.EndsWith(endsWithFilter));
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{relativeParent}/{targetName}"; //Path.Combine(relatedParent, fileName)
fileNameWithoutCulture = Path.GetFileNameWithoutExtension(targetName);
if (!models.Contains(fileNameWithoutCulture))
{
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, cultureExp));
models.Add(fileNameWithoutCulture);
}
}
}
}
else
{
// find by name
// **.en-US.ext
culture = requestedCulture.DisplayName;
filter = $".{culture}.{extension}";
files = contents.Where(x => !x.IsDirectory && x.Name.EndsWith(filter));
subLength = filter.Length;
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{directory}/{targetName}"; //Path.Combine(parentPath, fileName)
fileNameWithoutCulture = targetName.Substring(0, targetName.Length - subLength);
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, requestedCulture));
models.Add(fileNameWithoutCulture);
}
// try find directory named with culture name
// en-US/**.ext
dirs = contents.Where(x => x.IsDirectory && x.Name.Equals(culture));
foreach (IFileInfo langDir in dirs)
{
relativeParent = $"{directory}/{culture}"; //Path.Combine(parentPath, culture)
IDirectoryContents directoryContents = provider.GetDirectoryContents(relativeParent);
files = directoryContents.Where(x => !x.IsDirectory && x.Name.EndsWith(endsWithFilter));
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{relativeParent}/{targetName}"; //Path.Combine(relatedParent, fileName)
fileNameWithoutCulture = Path.GetFileNameWithoutExtension(targetName);
if (!models.Contains(fileNameWithoutCulture))
{
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, requestedCulture));
models.Add(fileNameWithoutCulture);
}
}
}
// find the regions having the same language
// **.en.ext
culture = requestedCulture.Language;
ICultureExpression cultureExp = culture.ParseCultureExpression();
filter = $".{culture}.{extension}";
files = contents.Where(x => !x.IsDirectory && x.Name.EndsWith(filter));
subLength = filter.Length;
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{directory}/{targetName}"; //Path.Combine(parentPath, fileName)
fileNameWithoutCulture = targetName.Substring(0, targetName.Length - subLength);
if (!models.Contains(fileNameWithoutCulture))
{
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, cultureExp));
models.Add(fileNameWithoutCulture);
}
}
// try find directory named with the same language
// en/**.ext
relativeParent = $"{directory}/{culture}"; //Path.Combine(parentPath, culture)
IFileInfo dir = contents.FirstOrDefault(x => x.IsDirectory && x.Name.Equals(culture));
if (dir != null)
{
IDirectoryContents directoryContents = provider.GetDirectoryContents(relativeParent);
files = directoryContents.Where(x => !x.IsDirectory && x.Name.EndsWith(endsWithFilter));
foreach (IFileInfo file in files)
{
targetName = file.Name;
filePath = $"{relativeParent}/{targetName}"; //Path.Combine(relatedParent, fileName)
fileNameWithoutCulture = Path.GetFileNameWithoutExtension(targetName);
if (!models.Contains(fileNameWithoutCulture))
{
result.Add(new FileCultureInfo(filePath, targetName, fileNameWithoutCulture, extension, cultureExp));
models.Add(fileNameWithoutCulture);
}
}
}
}
return(result);
}
public override ViewEngineResult FindView(ActionContext actionContext, ViewResult viewResult)
{
string viewName = viewResult.ViewName;
if (viewName == null)
{
viewName = GetActionName(actionContext);
}
if (viewName == null)
{
return(base.FindView(actionContext, viewResult));
}
string controllerName;
if (!actionContext.ActionDescriptor.RouteValues.TryGetValue(ControllerNameKey, out controllerName) ||
string.IsNullOrEmpty(controllerName))
{
controllerName = "";
}
string basePath = Path.Combine("Views", controllerName, viewName);
IServiceProvider services = actionContext.HttpContext.RequestServices;
CultureContext cultureContext = services.GetRequiredService <CultureContext>();
CultureExpression cultureExpression = cultureContext.Culture;
string requestedLanguage = cultureExpression.Language;
string lang = requestedLanguage;
string nameResult;
if (!cultureExpression.IsAllRegion && IsViewFileExisits(lang, out nameResult))
{
// exact match
viewResult.ViewName = nameResult;
viewResult.ViewData["Language"] = new LanguageRequestResult(lang, lang, true);
return(base.FindView(actionContext, viewResult));
}
lang = cultureExpression.LanguageName;
if (IsViewFileExisits(lang, out nameResult))
{
// language name match
viewResult.ViewName = nameResult;
viewResult.ViewData["Language"] = new LanguageRequestResult(requestedLanguage, lang, true);
return(base.FindView(actionContext, viewResult));
}
else
{
// find the first availble region of one language
IDirectoryContents directoryContents = env.ContentRootFileProvider.GetDirectoryContents(Path.Combine("Views", controllerName));
string startsWithFilter = $"{viewName}.{lang}";
IFileInfo file = directoryContents.FirstOrDefault(x => x.Name.StartsWith(startsWithFilter) && x.Name.EndsWith(".cshtml"));
if (file != null)
{
string cultureName = file.Name.Substring(viewName.Length + 1);
cultureName.Substring(0, cultureName.Length - 7);
nameResult = file.Name.Substring(0, file.Name.Length - 7);
if (CultureExpression.TryParse(cultureName, out CultureExpression exp))
{
viewResult.ViewData["Language"] = new LanguageRequestResult(requestedLanguage, exp.Language, true);
}
else
{
viewResult.ViewData["Language"] = new LanguageRequestResult(requestedLanguage, null, false);
}
viewResult.ViewName = nameResult;
return(base.FindView(actionContext, viewResult));
}
}
CultureExpression defaultLanguage = cultureContext.Options.DefaultLanguage;
lang = defaultLanguage.Language;
if (IsViewFileExisits(lang, out nameResult))
{
// default language match
viewResult.ViewName = nameResult;
viewResult.ViewData["Language"] = new LanguageRequestResult(requestedLanguage, lang, false);
return(base.FindView(actionContext, viewResult));
}
lang = defaultLanguage.LanguageName;
if (IsViewFileExisits(lang, out nameResult))
{
// default language name match
viewResult.ViewName = nameResult;
viewResult.ViewData["Language"] = new LanguageRequestResult(requestedLanguage, lang, false);
return(base.FindView(actionContext, viewResult));
}
// default file match
viewResult.ViewName = viewName;
viewResult.ViewData["Language"] = new LanguageRequestResult(requestedLanguage, null, false);
return(base.FindView(actionContext, viewResult));
bool IsViewFileExisits(string language, out string viewNameaResult)
{
string pathWithLang = $"{basePath}.{lang}.cshtml";
if (env.ContentRootFileProvider.GetFileInfo(pathWithLang).Exists)
{
viewNameaResult = viewName + "." + lang;
return(true);
}
viewNameaResult = null;
return(false);
}
}
