/// <summary>
/// Removes all keys but controller and action
/// </summary>
public static RouteValueDictionary PurgeQueryString(this RouteValueDictionary routeValueDict)
{
var copy = new RouteValueDictionary(routeValueDict);
foreach (var item in routeValueDict)
{
if (item.Key != MvcConstants.ControllerRouteValueKey && item.Key != MvcConstants.ActionRouteValueKey)
{
copy.Remove(item.Key);
}
}
return(copy);
}
public string BuildUrl(Route route, RequestContext requestContext, RouteValueDictionary userValues, RouteValueDictionary constraints, out RouteValueDictionary usedValues)
{
usedValues = null;
if (requestContext == null)
{
return(null);
}
RouteData routeData = requestContext.RouteData;
var currentValues = routeData.Values ?? new RouteValueDictionary();
var values = userValues ?? new RouteValueDictionary();
var defaultValues = (route != null ? route.Defaults : null) ?? new RouteValueDictionary();
// The set of values we should be using when generating the URL in this route
var acceptedValues = new RouteValueDictionary();
// Keep track of which new values have been used
HashSet <string> unusedNewValues = new HashSet <string> (values.Keys, StringComparer.OrdinalIgnoreCase);
// This route building logic is based on System.Web.Http's Routing code (which is Apache Licensed by MS)
// and which can be found at mono's external/aspnetwebstack/src/System.Web.Http/Routing/HttpParsedRoute.cs
// Hopefully this will ensure a much higher compatiblity with MS.NET's System.Web.Routing logic. (pruiz)
#region Step 1: Get the list of values we're going to use to match and generate this URL
// Find out which entries in the URL are valid for the URL we want to generate.
// If the URL had ordered parameters a="1", b="2", c="3" and the new values
// specified that b="9", then we need to invalidate everything after it. The new
// values should then be a="1", b="9", c=<no value>.
foreach (var item in parameterNames)
{
var parameterName = item.Key;
object newParameterValue;
bool hasNewParameterValue = values.TryGetValue(parameterName, out newParameterValue);
if (hasNewParameterValue)
{
unusedNewValues.Remove(parameterName);
}
object currentParameterValue;
bool hasCurrentParameterValue = currentValues.TryGetValue(parameterName, out currentParameterValue);
if (hasNewParameterValue && hasCurrentParameterValue)
{
if (!ParametersAreEqual(currentParameterValue, newParameterValue))
{
// Stop copying current values when we find one that doesn't match
break;
}
}
// If the parameter is a match, add it to the list of values we will use for URL generation
if (hasNewParameterValue)
{
if (ParameterIsNonEmpty(newParameterValue))
{
acceptedValues.Add(parameterName, newParameterValue);
}
}
else
{
if (hasCurrentParameterValue)
{
acceptedValues.Add(parameterName, currentParameterValue);
}
}
}
// Add all remaining new values to the list of values we will use for URL generation
foreach (var newValue in values)
{
if (ParameterIsNonEmpty(newValue.Value) && !acceptedValues.ContainsKey(newValue.Key))
{
acceptedValues.Add(newValue.Key, newValue.Value);
}
}
// Add all current values that aren't in the URL at all
foreach (var currentValue in currentValues)
{
if (!acceptedValues.ContainsKey(currentValue.Key) && !parameterNames.ContainsKey(currentValue.Key))
{
acceptedValues.Add(currentValue.Key, currentValue.Value);
}
}
// Add all remaining default values from the route to the list of values we will use for URL generation
foreach (var item in parameterNames)
{
object defaultValue;
if (!acceptedValues.ContainsKey(item.Key) && !IsParameterRequired(item.Key, defaultValues, out defaultValue))
{
// Add the default value only if there isn't already a new value for it and
// only if it actually has a default value, which we determine based on whether
// the parameter value is required.
acceptedValues.Add(item.Key, defaultValue);
}
}
// All required parameters in this URL must have values from somewhere (i.e. the accepted values)
foreach (var item in parameterNames)
{
object defaultValue;
if (IsParameterRequired(item.Key, defaultValues, out defaultValue) && !acceptedValues.ContainsKey(item.Key))
{
// If the route parameter value is required that means there's
// no default value, so if there wasn't a new value for it
// either, this route won't match.
return(null);
}
}
// All other default values must match if they are explicitly defined in the new values
var otherDefaultValues = new RouteValueDictionary(defaultValues);
foreach (var item in parameterNames)
{
otherDefaultValues.Remove(item.Key);
}
foreach (var defaultValue in otherDefaultValues)
{
object value;
if (values.TryGetValue(defaultValue.Key, out value))
{
unusedNewValues.Remove(defaultValue.Key);
if (!ParametersAreEqual(value, defaultValue.Value))
{
// If there is a non-parameterized value in the route and there is a
// new value for it and it doesn't match, this route won't match.
return(null);
}
}
}
#endregion
#region Step 2: If the route is a match generate the appropriate URL
var uri = new StringBuilder();
var pendingParts = new StringBuilder();
var pendingPartsAreAllSafe = false;
bool blockAllUriAppends = false;
var allSegments = new List <PatternSegment?> ();
// Build a list of segments plus separators we can use as template.
foreach (var segment in segments)
{
if (allSegments.Count > 0)
{
allSegments.Add(null); // separator exposed as null.
}
allSegments.Add(segment);
}
// Finally loop thru al segment-templates building the actual uri.
foreach (var item in allSegments)
{
var segment = item.GetValueOrDefault();
// If segment is a separator..
if (item == null)
{
if (pendingPartsAreAllSafe)
{
// Accept
if (pendingParts.Length > 0)
{
if (blockAllUriAppends)
{
return(null);
}
// Append any pending literals to the URL
uri.Append(pendingParts.ToString());
pendingParts.Length = 0;
}
}
pendingPartsAreAllSafe = false;
// Guard against appending multiple separators for empty segments
if (pendingParts.Length > 0 && pendingParts[pendingParts.Length - 1] == '/')
{
// Dev10 676725: Route should not be matched if that causes mismatched tokens
// Dev11 86819: We will allow empty matches if all subsequent segments are null
if (blockAllUriAppends)
{
return(null);
}
// Append any pending literals to the URI (without the trailing slash) and prevent any future appends
uri.Append(pendingParts.ToString(0, pendingParts.Length - 1));
pendingParts.Length = 0;
}
else
{
pendingParts.Append("/");
}
#if false
}
else if (segment.AllLiteral)
{
// Spezial (optimized) case: all elements of segment are literals.
pendingPartsAreAllSafe = true;
foreach (var tk in segment.Tokens)
{
pendingParts.Append(tk.Name);
}
#endif
}
else
{
// Segments are treated as all-or-none. We should never output a partial segment.
// If we add any subsegment of this segment to the generated URL, we have to add
// the complete match. For example, if the subsegment is "{p1}-{p2}.xml" and we
// used a value for {p1}, we have to output the entire segment up to the next "/".
// Otherwise we could end up with the partial segment "v1" instead of the entire
// segment "v1-v2.xml".
bool addedAnySubsegments = false;
foreach (var token in segment.Tokens)
{
if (token.Type == PatternTokenType.Literal)
{
// If it's a literal we hold on to it until we are sure we need to add it
pendingPartsAreAllSafe = true;
pendingParts.Append(token.Name);
}
else
{
if (token.Type == PatternTokenType.Standard || token.Type == PatternTokenType.CatchAll)
{
if (pendingPartsAreAllSafe)
{
// Accept
if (pendingParts.Length > 0)
{
if (blockAllUriAppends)
{
return(null);
}
// Append any pending literals to the URL
uri.Append(pendingParts.ToString());
pendingParts.Length = 0;
addedAnySubsegments = true;
}
}
pendingPartsAreAllSafe = false;
// If it's a parameter, get its value
object acceptedParameterValue;
bool hasAcceptedParameterValue = acceptedValues.TryGetValue(token.Name, out acceptedParameterValue);
if (hasAcceptedParameterValue)
{
unusedNewValues.Remove(token.Name);
}
object defaultParameterValue;
defaultValues.TryGetValue(token.Name, out defaultParameterValue);
if (ParametersAreEqual(acceptedParameterValue, defaultParameterValue))
{
// If the accepted value is the same as the default value, mark it as pending since
// we won't necessarily add it to the URL we generate.
pendingParts.Append(Convert.ToString(acceptedParameterValue, CultureInfo.InvariantCulture));
}
else
{
if (blockAllUriAppends)
{
return(null);
}
// Add the new part to the URL as well as any pending parts
if (pendingParts.Length > 0)
{
// Append any pending literals to the URL
uri.Append(pendingParts.ToString());
pendingParts.Length = 0;
}
uri.Append(Convert.ToString(acceptedParameterValue, CultureInfo.InvariantCulture));
addedAnySubsegments = true;
}
}
else
{
Debug.Fail("Invalid path subsegment type");
}
}
}
if (addedAnySubsegments)
{
// See comment above about why we add the pending parts
if (pendingParts.Length > 0)
{
if (blockAllUriAppends)
{
return(null);
}
// Append any pending literals to the URL
uri.Append(pendingParts.ToString());
pendingParts.Length = 0;
}
}
}
}
if (pendingPartsAreAllSafe)
{
// Accept
if (pendingParts.Length > 0)
{
if (blockAllUriAppends)
{
return(null);
}
// Append any pending literals to the URI
uri.Append(pendingParts.ToString());
}
}
// Process constraints keys
if (constraints != null)
{
// If there are any constraints, mark all the keys as being used so that we don't
// generate query string items for custom constraints that don't appear as parameters
// in the URI format.
foreach (var constraintsItem in constraints)
{
unusedNewValues.Remove(constraintsItem.Key);
}
}
// Encode the URI before we append the query string, otherwise we would double encode the query string
var encodedUri = new StringBuilder();
encodedUri.Append(UriEncode(uri.ToString()));
uri = encodedUri;
// Add remaining new values as query string parameters to the URI
if (unusedNewValues.Count > 0)
{
// Generate the query string
bool firstParam = true;
foreach (string unusedNewValue in unusedNewValues)
{
object value;
if (acceptedValues.TryGetValue(unusedNewValue, out value))
{
uri.Append(firstParam ? '?' : '&');
firstParam = false;
uri.Append(Uri.EscapeDataString(unusedNewValue));
uri.Append('=');
uri.Append(Uri.EscapeDataString(Convert.ToString(value, CultureInfo.InvariantCulture)));
}
}
}
#endregion
usedValues = acceptedValues;
return(uri.ToString());
}
public BoundUrl Bind(RouteValueDictionary currentValues, RouteValueDictionary values, RouteValueDictionary defaultValues, RouteValueDictionary constraints)
{
if (currentValues == null)
{
currentValues = new RouteValueDictionary();
}
if (values == null)
{
values = new RouteValueDictionary();
}
if (defaultValues == null)
{
defaultValues = new RouteValueDictionary();
}
RouteValueDictionary acceptedValues = new RouteValueDictionary();
HashSet <string> unusedNewValues = new HashSet <string>(values.Keys, StringComparer.OrdinalIgnoreCase);
ForEachParameter(this.PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
object obj2;
object obj3;
string key = parameterSubsegment.ParameterName;
bool flag = values.TryGetValue(key, out obj2);
if (flag)
{
unusedNewValues.Remove(key);
}
bool flag2 = currentValues.TryGetValue(key, out obj3);
if ((flag && flag2) && !RoutePartsEqual(obj3, obj2))
{
return(false);
}
if (flag)
{
if (IsRoutePartNonEmpty(obj2))
{
acceptedValues.Add(key, obj2);
}
}
else if (flag2)
{
acceptedValues.Add(key, obj3);
}
return(true);
});
foreach (KeyValuePair <string, object> pair in values)
{
if (IsRoutePartNonEmpty(pair.Value) && !acceptedValues.ContainsKey(pair.Key))
{
acceptedValues.Add(pair.Key, pair.Value);
}
}
foreach (KeyValuePair <string, object> pair2 in currentValues)
{
string str = pair2.Key;
if (!acceptedValues.ContainsKey(str) && (GetParameterSubsegment(this.PathSegments, str) == null))
{
acceptedValues.Add(str, pair2.Value);
}
}
ForEachParameter(this.PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
object obj2;
if (!acceptedValues.ContainsKey(parameterSubsegment.ParameterName) && !IsParameterRequired(parameterSubsegment, defaultValues, out obj2))
{
acceptedValues.Add(parameterSubsegment.ParameterName, obj2);
}
return(true);
});
if (!ForEachParameter(this.PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
object obj2;
if (IsParameterRequired(parameterSubsegment, defaultValues, out obj2) && !acceptedValues.ContainsKey(parameterSubsegment.ParameterName))
{
return(false);
}
return(true);
}))
{
return(null);
}
RouteValueDictionary otherDefaultValues = new RouteValueDictionary(defaultValues);
ForEachParameter(this.PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
otherDefaultValues.Remove(parameterSubsegment.ParameterName);
return(true);
});
foreach (KeyValuePair <string, object> pair3 in otherDefaultValues)
{
object obj2;
if (values.TryGetValue(pair3.Key, out obj2))
{
unusedNewValues.Remove(pair3.Key);
if (!RoutePartsEqual(obj2, pair3.Value))
{
return(null);
}
}
}
StringBuilder builder = new StringBuilder();
StringBuilder builder2 = new StringBuilder();
bool flag2 = false;
for (int i = 0; i < this.PathSegments.Count; i++)
{
PathSegment segment = this.PathSegments[i];
if (segment is SeparatorPathSegment)
{
if (flag2 && (builder2.Length > 0))
{
builder.Append(builder2.ToString());
builder2.Length = 0;
}
flag2 = false;
if ((builder2.Length > 0) && (builder2[builder2.Length - 1] == '/'))
{
return(null);
}
builder2.Append("/");
}
else
{
ContentPathSegment segment2 = segment as ContentPathSegment;
if (segment2 != null)
{
bool flag3 = false;
foreach (PathSubsegment subsegment2 in segment2.Subsegments)
{
LiteralSubsegment subsegment3 = subsegment2 as LiteralSubsegment;
if (subsegment3 != null)
{
flag2 = true;
builder2.Append(UrlEncode(subsegment3.Literal));
}
else
{
ParameterSubsegment subsegment4 = subsegment2 as ParameterSubsegment;
if (subsegment4 != null)
{
object obj3;
object obj4;
if (flag2 && (builder2.Length > 0))
{
builder.Append(builder2.ToString());
builder2.Length = 0;
flag3 = true;
}
flag2 = false;
if (acceptedValues.TryGetValue(subsegment4.ParameterName, out obj3))
{
unusedNewValues.Remove(subsegment4.ParameterName);
}
defaultValues.TryGetValue(subsegment4.ParameterName, out obj4);
if (RoutePartsEqual(obj3, obj4))
{
builder2.Append(UrlEncode(Convert.ToString(obj3, CultureInfo.InvariantCulture)));
}
else
{
if (builder2.Length > 0)
{
builder.Append(builder2.ToString());
builder2.Length = 0;
}
builder.Append(UrlEncode(Convert.ToString(obj3, CultureInfo.InvariantCulture)));
flag3 = true;
}
}
}
}
if (flag3 && (builder2.Length > 0))
{
builder.Append(builder2.ToString());
builder2.Length = 0;
}
}
}
}
if (flag2 && (builder2.Length > 0))
{
builder.Append(builder2.ToString());
}
if (constraints != null)
{
foreach (KeyValuePair <string, object> pair4 in constraints)
{
unusedNewValues.Remove(pair4.Key);
}
}
if (unusedNewValues.Count > 0)
{
bool flag5 = true;
foreach (string str2 in unusedNewValues)
{
object obj5;
if (acceptedValues.TryGetValue(str2, out obj5))
{
builder.Append(flag5 ? '?' : '&');
flag5 = false;
builder.Append(Uri.EscapeDataString(str2));
builder.Append('=');
builder.Append(Uri.EscapeDataString(Convert.ToString(obj5, CultureInfo.InvariantCulture)));
}
}
}
return(new BoundUrl {
Url = builder.ToString(), Values = acceptedValues
});
}
public BoundUrl Bind(RouteValueDictionary currentValues, RouteValueDictionary values, RouteValueDictionary defaultValues, RouteValueDictionary constraints)
{
if (currentValues == null)
{
currentValues = new RouteValueDictionary();
}
if (values == null)
{
values = new RouteValueDictionary();
}
if (defaultValues == null)
{
defaultValues = new RouteValueDictionary();
}
// The set of values we should be using when generating the URL in this route
RouteValueDictionary acceptedValues = new RouteValueDictionary();
// Keep track of which new values have been used
HashSet <string> unusedNewValues = new HashSet <string>(values.Keys, StringComparer.OrdinalIgnoreCase);
// Step 1: Get the list of values we're going to try to use to match and generate this URL
// Find out which entries in the URL are valid for the URL we want to generate.
// If the URL had ordered parameters a="1", b="2", c="3" and the new values
// specified that b="9", then we need to invalidate everything after it. The new
// values should then be a="1", b="9", c=<no value>.
ForEachParameter(PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
// If it's a parameter subsegment, examine the current value to see if it matches the new value
string parameterName = parameterSubsegment.ParameterName;
object newParameterValue;
bool hasNewParameterValue = values.TryGetValue(parameterName, out newParameterValue);
if (hasNewParameterValue)
{
unusedNewValues.Remove(parameterName);
}
object currentParameterValue;
bool hasCurrentParameterValue = currentValues.TryGetValue(parameterName, out currentParameterValue);
if (hasNewParameterValue && hasCurrentParameterValue)
{
if (!RoutePartsEqual(currentParameterValue, newParameterValue))
{
// Stop copying current values when we find one that doesn't match
return(false);
}
}
// If the parameter is a match, add it to the list of values we will use for URL generation
if (hasNewParameterValue)
{
if (IsRoutePartNonEmpty(newParameterValue))
{
acceptedValues.Add(parameterName, newParameterValue);
}
}
else
{
if (hasCurrentParameterValue)
{
acceptedValues.Add(parameterName, currentParameterValue);
}
}
return(true);
});
// Add all remaining new values to the list of values we will use for URL generation
foreach (var newValue in values)
{
if (IsRoutePartNonEmpty(newValue.Value))
{
if (!acceptedValues.ContainsKey(newValue.Key))
{
acceptedValues.Add(newValue.Key, newValue.Value);
}
}
}
// Add all current values that aren't in the URL at all
foreach (var currentValue in currentValues)
{
string parameterName = currentValue.Key;
if (!acceptedValues.ContainsKey(parameterName))
{
ParameterSubsegment parameterSubsegment = GetParameterSubsegment(PathSegments, parameterName);
if (parameterSubsegment == null)
{
acceptedValues.Add(parameterName, currentValue.Value);
}
}
}
// Add all remaining default values from the route to the list of values we will use for URL generation
ForEachParameter(PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
if (!acceptedValues.ContainsKey(parameterSubsegment.ParameterName))
{
object defaultValue;
if (!IsParameterRequired(parameterSubsegment, defaultValues, out defaultValue))
{
// Add the default value only if there isn't already a new value for it and
// only if it actually has a default value, which we determine based on whether
// the parameter value is required.
acceptedValues.Add(parameterSubsegment.ParameterName, defaultValue);
}
}
return(true);
});
// All required parameters in this URL must have values from somewhere (i.e. the accepted values)
bool hasAllRequiredValues = ForEachParameter(PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
object defaultValue;
if (IsParameterRequired(parameterSubsegment, defaultValues, out defaultValue))
{
if (!acceptedValues.ContainsKey(parameterSubsegment.ParameterName))
{
// If the route parameter value is required that means there's
// no default value, so if there wasn't a new value for it
// either, this route won't match.
return(false);
}
}
return(true);
});
if (!hasAllRequiredValues)
{
return(null);
}
// All other default values must match if they are explicitly defined in the new values
RouteValueDictionary otherDefaultValues = new RouteValueDictionary(defaultValues);
ForEachParameter(PathSegments, delegate(ParameterSubsegment parameterSubsegment) {
otherDefaultValues.Remove(parameterSubsegment.ParameterName);
return(true);
});
foreach (var defaultValue in otherDefaultValues)
{
object value;
if (values.TryGetValue(defaultValue.Key, out value))
{
unusedNewValues.Remove(defaultValue.Key);
if (!RoutePartsEqual(value, defaultValue.Value))
{
// If there is a non-parameterized value in the route and there is a
// new value for it and it doesn't match, this route won't match.
return(null);
}
}
}
// Step 2: If the route is a match generate the appropriate URL
StringBuilder url = new StringBuilder();
StringBuilder pendingParts = new StringBuilder();
bool pendingPartsAreAllSafe = false;
bool blockAllUrlAppends = false;
for (int i = 0; i < PathSegments.Count; i++)
{
PathSegment pathSegment = PathSegments[i]; // parsedRouteUrlPart
if (pathSegment is SeparatorPathSegment)
{
if (pendingPartsAreAllSafe)
{
// Accept
if (pendingParts.Length > 0)
{
if (blockAllUrlAppends)
{
return(null);
}
// Append any pending literals to the URL
url.Append(pendingParts.ToString());
pendingParts.Length = 0;
}
}
pendingPartsAreAllSafe = false;
// Guard against appending multiple separators for empty segements
if (pendingParts.Length > 0 && pendingParts[pendingParts.Length - 1] == '/')
{
// Dev10 676725: Route should not be matched if that causes mismatched tokens
// Dev11 86819: We will allow empty matches if all subsequent segments are null
if (blockAllUrlAppends)
{
return(null);
}
// Append any pending literals to the URL(without the trailing slash) and prevent any future appends
url.Append(pendingParts.ToString(0, pendingParts.Length - 1));
pendingParts.Length = 0;
blockAllUrlAppends = true;
}
else
{
pendingParts.Append("/");
}
}
else
{
ContentPathSegment contentPathSegment = pathSegment as ContentPathSegment;
if (contentPathSegment != null)
{
// Segments are treated as all-or-none. We should never output a partial segment.
// If we add any subsegment of this segment to the generated URL, we have to add
// the complete match. For example, if the subsegment is "{p1}-{p2}.xml" and we
// used a value for {p1}, we have to output the entire segment up to the next "/".
// Otherwise we could end up with the partial segment "v1" instead of the entire
// segment "v1-v2.xml".
bool addedAnySubsegments = false;
foreach (PathSubsegment subsegment in contentPathSegment.Subsegments)
{
LiteralSubsegment literalSubsegment = subsegment as LiteralSubsegment;
if (literalSubsegment != null)
{
// If it's a literal we hold on to it until we are sure we need to add it
pendingPartsAreAllSafe = true;
pendingParts.Append(UrlEncode(literalSubsegment.Literal));
}
else
{
ParameterSubsegment parameterSubsegment = subsegment as ParameterSubsegment;
if (parameterSubsegment != null)
{
if (pendingPartsAreAllSafe)
{
// Accept
if (pendingParts.Length > 0)
{
if (blockAllUrlAppends)
{
return(null);
}
// Append any pending literals to the URL
url.Append(pendingParts.ToString());
pendingParts.Length = 0;
addedAnySubsegments = true;
}
}
pendingPartsAreAllSafe = false;
// If it's a parameter, get its value
object acceptedParameterValue;
bool hasAcceptedParameterValue = acceptedValues.TryGetValue(parameterSubsegment.ParameterName, out acceptedParameterValue);
if (hasAcceptedParameterValue)
{
unusedNewValues.Remove(parameterSubsegment.ParameterName);
}
object defaultParameterValue;
defaultValues.TryGetValue(parameterSubsegment.ParameterName, out defaultParameterValue);
if (RoutePartsEqual(acceptedParameterValue, defaultParameterValue))
{
// If the accepted value is the same as the default value, mark it as pending since
// we won't necessarily add it to the URL we generate.
pendingParts.Append(UrlEncode(Convert.ToString(acceptedParameterValue, CultureInfo.InvariantCulture)));
}
else
{
if (blockAllUrlAppends)
{
return(null);
}
// Add the new part to the URL as well as any pending parts
if (pendingParts.Length > 0)
{
// Append any pending literals to the URL
url.Append(pendingParts.ToString());
pendingParts.Length = 0;
}
url.Append(UrlEncode(Convert.ToString(acceptedParameterValue, CultureInfo.InvariantCulture)));
addedAnySubsegments = true;
}
}
else
{
Debug.Fail("Invalid path subsegment type");
}
}
}
if (addedAnySubsegments)
{
// See comment above about why we add the pending parts
if (pendingParts.Length > 0)
{
if (blockAllUrlAppends)
{
return(null);
}
// Append any pending literals to the URL
url.Append(pendingParts.ToString());
pendingParts.Length = 0;
}
}
}
else
{
Debug.Fail("Invalid path segment type");
}
}
}
if (pendingPartsAreAllSafe)
{
// Accept
if (pendingParts.Length > 0)
{
if (blockAllUrlAppends)
{
return(null);
}
// Append any pending literals to the URL
url.Append(pendingParts.ToString());
}
}
// Process constraints keys
if (constraints != null)
{
// If there are any constraints, mark all the keys as being used so that we don't
// generate query string items for custom constraints that don't appear as parameters
// in the URL format.
foreach (var constraintsItem in constraints)
{
unusedNewValues.Remove(constraintsItem.Key);
}
}
// Add remaining new values as query string parameters to the URL
if (unusedNewValues.Count > 0)
{
// Generate the query string
bool firstParam = true;
foreach (string unusedNewValue in unusedNewValues)
{
object value;
if (acceptedValues.TryGetValue(unusedNewValue, out value))
{
url.Append(firstParam ? '?' : '&');
firstParam = false;
url.Append(Uri.EscapeDataString(unusedNewValue));
url.Append('=');
url.Append(Uri.EscapeDataString(Convert.ToString(value, CultureInfo.InvariantCulture)));
}
}
}
return(new BoundUrl {
Url = url.ToString(),
Values = acceptedValues
});
}
