private static IEnumerable <string> AppendBaseHrefToOptions(string currentDirectory, IEnumerable <string> optionsList)
{
var ngAppSettings = NgMiddlewareHelper.GetAllNgAppSettings(currentDirectory);
// TODO AF20170929. Check the app names/numbers in optionsList against the app names in .angular-cli.json.
if (optionsList.Count() > ngAppSettings.Count())
{
throw new ArgumentOutOfRangeException(ErrorAppCount);
}
// TODO AF20170929. We match apps by position here. Match the app in optionsList with apps in .angular-cli.json by name/number, i.e. --app=app0. See +https://github.com/angular/angular-cli/wiki/stories-multiple-apps
var newOptionsList = optionsList.Select((optionsLine, index) =>
{
var baseHref = ngAppSettings
.Where(i => i.AppIndex == index)
.Select(i => i.BaseHref)
.FirstOrDefault()
;
if (String.IsNullOrWhiteSpace(baseHref))
{
throw new Exception(String.Format(NgMiddlewareHelper.ErrorNoBaseHrefInAngularCliJson, index));
}
return(optionsLine + " --base-href " + baseHref); // ng tolerates extra whitespaces in command line.
})
.ToList();
return(newOptionsList);
}
public NgRouteMiddleware(RequestDelegate next, IHostingEnvironment hostingEnv)
{
// Store the next middleware in the request processing chain.
this.next = next ?? throw new ArgumentNullException(nameof(next));
if (hostingEnv == null)
{
throw new ArgumentNullException(nameof(hostingEnv));
}
var contentRootPath = hostingEnv.ContentRootPath;
var webRootPath = hostingEnv.WebRootPath;
var ngAppSettings = NgMiddlewareHelper.GetAllNgAppSettings(contentRootPath)
.Where(i => !String.IsNullOrWhiteSpace(i.BaseHref));
if (!ngAppSettings.Any())
{
throw new Exception(String.Format(NgMiddlewareHelper.ErrorNoBaseHrefInAngularCliJson, 0));
}
this.pathPrefixToFilePathMap = ngAppSettings
.Select(i => new
{
// Argument of PathString.StartsWithSegments() must not have a trailing slash.
RequestPathSegment = i.BaseHref == "/" ? i.BaseHref : i.BaseHref.TrimEnd('/'),
// Slashes are acceptable in the middle and at the end, but not at the start of a path segment.
IndexFilePath = Path.Combine(webRootPath, i.BaseHref.TrimStart('/'), i.IndexFileName),
})
.Select(i => new KeyValuePair <string, string>(i.RequestPathSegment, i.IndexFilePath))
.ToList()
;
this.pathPrefixToFilePathMap.ForEach(i =>
{
if (!File.Exists(i.Value))
{
throw new Exception(String.Format(ErrorNgIndexFileNotFound, i.Value));
}
});
}
