private static bool IsBaseOf(DomainAndUri domain, Uri uri) => domain.Uri.EndPathWithSlash().IsBaseOf(uri);
Uri AssembleUrl(DomainAndUri domainUri, string path, Uri current, UrlProviderMode mode)
{
Uri uri;
// ignore vdir at that point, UriFromUmbraco will do it
if (mode == UrlProviderMode.AutoLegacy)
{
mode = UmbracoConfig.For.UmbracoSettings().RequestHandler.UseDomainPrefixes
? UrlProviderMode.Absolute
: UrlProviderMode.Auto;
}
if (domainUri == null) // no domain was found
{
if (current == null)
mode = UrlProviderMode.Relative; // best we can do
switch (mode)
{
case UrlProviderMode.Absolute:
uri = new Uri(current.GetLeftPart(UriPartial.Authority) + path);
break;
case UrlProviderMode.Relative:
case UrlProviderMode.Auto:
uri = new Uri(path, UriKind.Relative);
break;
default:
throw new ArgumentOutOfRangeException("mode");
}
}
else // a domain was found
{
if (mode == UrlProviderMode.Auto)
{
if (current != null && domainUri.Uri.GetLeftPart(UriPartial.Authority) == current.GetLeftPart(UriPartial.Authority))
mode = UrlProviderMode.Relative;
else
mode = UrlProviderMode.Absolute;
}
switch (mode)
{
case UrlProviderMode.Absolute:
uri = new Uri(CombinePaths(domainUri.Uri.GetLeftPart(UriPartial.Path), path));
break;
case UrlProviderMode.Relative:
uri = new Uri(CombinePaths(domainUri.Uri.AbsolutePath, path), UriKind.Relative);
break;
default:
throw new ArgumentOutOfRangeException("mode");
}
}
// UriFromUmbraco will handle vdir
// meaning it will add vdir into domain urls too!
return UriUtility.UriFromUmbraco(uri);
}
Uri AssembleUrl(DomainAndUri domainUri, string path, Uri current, UrlProviderMode mode)
{
Uri uri;
// ignore vdir at that point, UriFromUmbraco will do it
if (mode == UrlProviderMode.AutoLegacy)
{
mode = _requestSettings.UseDomainPrefixes
? UrlProviderMode.Absolute
: UrlProviderMode.Auto;
}
if (domainUri == null) // no domain was found
{
if (current == null)
{
mode = UrlProviderMode.Relative; // best we can do
}
switch (mode)
{
case UrlProviderMode.Absolute:
uri = new Uri(current.GetLeftPart(UriPartial.Authority) + path);
break;
case UrlProviderMode.Relative:
case UrlProviderMode.Auto:
uri = new Uri(path, UriKind.Relative);
break;
default:
throw new ArgumentOutOfRangeException("mode");
}
}
else // a domain was found
{
if (mode == UrlProviderMode.Auto)
{
if (current != null && domainUri.Uri.GetLeftPart(UriPartial.Authority) == current.GetLeftPart(UriPartial.Authority))
{
mode = UrlProviderMode.Relative;
}
else
{
mode = UrlProviderMode.Absolute;
}
}
switch (mode)
{
case UrlProviderMode.Absolute:
uri = new Uri(CombinePaths(domainUri.Uri.GetLeftPart(UriPartial.Path), path));
break;
case UrlProviderMode.Relative:
uri = new Uri(CombinePaths(domainUri.Uri.AbsolutePath, path), UriKind.Relative);
break;
default:
throw new ArgumentOutOfRangeException("mode");
}
}
// UriFromUmbraco will handle vdir
// meaning it will add vdir into domain urls too!
return(UriUtility.UriFromUmbraco(uri));
}
private static DomainAndUri MapDomain(DomainAndUri[] domainAndUris, Dictionary<string, string[]> qualifiedSites, string currentAuthority)
{
if (domainAndUris == null)
throw new ArgumentNullException("domainAndUris");
if (!domainAndUris.Any())
throw new ArgumentException("Cannot be empty.", "domainAndUris");
// we do our best, but can't do the impossible
if (qualifiedSites == null)
return domainAndUris.First();
// find a site that contains the current authority
var currentSite = qualifiedSites.FirstOrDefault(site => site.Value.Contains(currentAuthority));
// if current belongs to a site - try to pick the first element
// from domainAndUris that also belongs to that site
var ret = currentSite.Equals(default(KeyValuePair<string, string[]>))
? null
: domainAndUris.FirstOrDefault(d => currentSite.Value.Contains(d.Uri.GetLeftPart(UriPartial.Authority)));
// no match means that either current does not belong to a site, or the site it belongs to
// does not contain any of domainAndUris. Yet we have to return something. here, it becomes
// a bit arbitrary.
// look through sites in order and pick the first domainAndUri that belongs to a site
ret = ret ?? qualifiedSites
.Where(site => site.Key != currentSite.Key)
.Select(site => domainAndUris.FirstOrDefault(domainAndUri => site.Value.Contains(domainAndUri.Uri.GetLeftPart(UriPartial.Authority))))
.FirstOrDefault(domainAndUri => domainAndUri != null);
// random, really
ret = ret ?? domainAndUris.First();
return ret;
}
/// <summary>
/// Filters a list of <c>DomainAndUri</c> to pick those that best matches the current request.
/// </summary>
/// <param name="current">The Uri of the current request.</param>
/// <param name="domainAndUris">The list of <c>DomainAndUri</c> to filter.</param>
/// <param name="excludeDefault">A value indicating whether to exclude the current/default domain.</param>
/// <returns>The selected <c>DomainAndUri</c> items.</returns>
/// <remarks>The filter must return something, even empty, else an exception will be thrown.</remarks>
public virtual IEnumerable<DomainAndUri> MapDomains(Uri current, DomainAndUri[] domainAndUris, bool excludeDefault)
{
var currentAuthority = current.GetLeftPart(UriPartial.Authority);
KeyValuePair<string, string[]>[] candidateSites = null;
IEnumerable<DomainAndUri> ret = domainAndUris;
using (ConfigReadLock) // so nothing changes between GetQualifiedSites and access to bindings
{
var qualifiedSites = GetQualifiedSitesInsideLock(current);
if (excludeDefault)
{
// exclude the current one (avoid producing the absolute equivalent of what GetUrl returns)
var hintWithSlash = current.EndPathWithSlash();
var hinted = domainAndUris.FirstOrDefault(d => d.Uri.EndPathWithSlash().IsBaseOf(hintWithSlash));
if (hinted != null)
ret = ret.Where(d => d != hinted);
// exclude the default one (avoid producing a possible duplicate of what GetUrl returns)
// only if the default one cannot be the current one ie if hinted is not null
if (hinted == null && domainAndUris.Any())
{
// it is illegal to call MapDomain if domainAndUris is empty
// also, domainAndUris should NOT contain current, hence the test on hinted
var mainDomain = MapDomain(domainAndUris, qualifiedSites, currentAuthority); // what GetUrl would get
ret = ret.Where(d => d != mainDomain);
}
}
// we do our best, but can't do the impossible
if (qualifiedSites == null)
return ret;
// find a site that contains the current authority
var currentSite = qualifiedSites.FirstOrDefault(site => site.Value.Contains(currentAuthority));
// if current belongs to a site, pick every element from domainAndUris that also belong
// to that site -- or to any site bound to that site
if (!currentSite.Equals(default(KeyValuePair<string, string[]>)))
{
candidateSites = new[] { currentSite };
if (_bindings != null && _bindings.ContainsKey(currentSite.Key))
{
var boundSites = qualifiedSites.Where(site => _bindings[currentSite.Key].Contains(site.Key));
candidateSites = candidateSites.Union(boundSites).ToArray();
// .ToArray ensures it is evaluated before the configuration lock is exited
}
}
}
// if we are able to filter, then filter, else return the whole lot
return candidateSites == null ? ret : ret.Where(d =>
{
var authority = d.Uri.GetLeftPart(UriPartial.Authority);
return candidateSites.Any(site => site.Value.Contains(authority));
});
}
/// <summary>
/// Filters a list of <c>DomainAndUri</c> to pick one that best matches the current request.
/// </summary>
/// <param name="current">The Uri of the current request.</param>
/// <param name="domainAndUris">The list of <c>DomainAndUri</c> to filter.</param>
/// <returns>The selected <c>DomainAndUri</c>.</returns>
/// <remarks>
/// <para>If the filter is invoked then <paramref name="domainAndUris"/> is _not_ empty and
/// <paramref name="current"/> is _not_ null, and <paramref name="current"/> could not be
/// matched with anything in <paramref name="domainAndUris"/>.</para>
/// <para>The filter _must_ return something else an exception will be thrown.</para>
/// </remarks>
public virtual DomainAndUri MapDomain(Uri current, DomainAndUri[] domainAndUris)
{
var currentAuthority = current.GetLeftPart(UriPartial.Authority);
var qualifiedSites = GetQualifiedSites(current);
return MapDomain(domainAndUris, qualifiedSites, currentAuthority);
}
Uri AssembleUrl(DomainAndUri domainUri, string path, Uri current, UrlMode mode)
{
Uri uri;
// ignore vdir at that point, UriFromUmbraco will do it
if (domainUri == null) // no domain was found
{
if (current == null)
{
mode = UrlMode.Relative; // best we can do
}
switch (mode)
{
case UrlMode.Absolute:
uri = new Uri(current.GetLeftPart(UriPartial.Authority) + path);
break;
case UrlMode.Relative:
case UrlMode.Auto:
uri = new Uri(path, UriKind.Relative);
break;
default:
throw new ArgumentOutOfRangeException(nameof(mode));
}
}
else // a domain was found
{
if (mode == UrlMode.Auto)
{
//this check is a little tricky, we can't just compare domains
if (current != null && domainUri.Uri.GetLeftPart(UriPartial.Authority) == current.GetLeftPart(UriPartial.Authority))
{
mode = UrlMode.Relative;
}
else
{
mode = UrlMode.Absolute;
}
}
switch (mode)
{
case UrlMode.Absolute:
uri = new Uri(CombinePaths(domainUri.Uri.GetLeftPart(UriPartial.Path), path));
break;
case UrlMode.Relative:
uri = new Uri(CombinePaths(domainUri.Uri.AbsolutePath, path), UriKind.Relative);
break;
default:
throw new ArgumentOutOfRangeException(nameof(mode));
}
}
// UriFromUmbraco will handle vdir
// meaning it will add vdir into domain URLs too!
return(UriUtility.UriFromUmbraco(uri, _globalSettings, _requestSettings));
}