public static ODataQueryOptions RemoveOptions(ODataQueryOptions queryOptions, List <String> optionNames, List <KeyValuePair <string, string> > newQueryOptions = null)
{
var request = queryOptions.Request;
//var oldUri = new Uri(queryOptions.Request.QueryString.ToString());
var oldUri = new Uri($"{request.Scheme}://{request.Host}{request.Path.ToString().TrimEnd('/')}/{request.QueryString}");
var map = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(oldUri.Query).Where(d => (d.Key.Trim().Length > 0) && !optionNames.Contains(d.Key.Trim()))
.Select(d => new KeyValuePair <string, string>(d.Key, d.Value)).ToList();
if (newQueryOptions != null)
{
newQueryOptions?.ForEach(newQueryOption =>
{
map.Add(new KeyValuePair <string, string>(newQueryOption.Key, newQueryOption.Value));
});
}
var qb = new Microsoft.AspNetCore.Http.Extensions.QueryBuilder(map);
var newUrl = oldUri.Scheme + "://" + oldUri.Authority + oldUri.AbsolutePath.TrimEnd('/') + "/" + qb.ToQueryString();
//var newUri = new Uri(newUrl);
//request.Path = new PathString(newUrl);
request.QueryString = qb.ToQueryString();
var newQo = new ODataQueryOptions(queryOptions.Context, request);
return(newQo);
//return queryOptions;
}
public static ODataQueryOptions FixupExpand(ODataQueryOptions queryOptions)
{
var expandQueryString = queryOptions.RawValues.Expand;
if (string.IsNullOrEmpty(expandQueryString))
{
return(queryOptions);
}
var request = queryOptions.Request;
var oldUri = new Uri($"{request.Scheme}://{request.Host}{request.Path.ToString().TrimEnd('/')}/{request.QueryString}");
var map = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(oldUri.Query).Where(d => (d.Key.Trim().Length > 0))
.Select(d => new KeyValuePair <string, string>(d.Key, d.Value)).ToList();
bool foundExpand = false;
for (int i = 0; i < map.Count; i++)
{
var mapItem = map[i];
if (mapItem.Key == "$expand")
{
var expandItems = mapItem.Value.Split(',').ToList();
if (expandItems.Count <= 0)
{
continue;
}
foundExpand = true;
var result = String.Empty;
expandItems.ForEach(expandItem =>
{
var orderByItems = expandItem.Split('/');
var thisResult = orderByItems[0];
for (int j = 1; j < orderByItems.Length; j++)
{
thisResult += "($expand=" + orderByItems[j];
}
thisResult += String.Empty.PadLeft(orderByItems.Length - 1, ')');
result += thisResult + ",";
});
result = result.TrimEnd(',');
map[i] = new KeyValuePair <string, string>(mapItem.Key, result);
}
}
if (!foundExpand)
{
return(queryOptions);
}
var qb = new Microsoft.AspNetCore.Http.Extensions.QueryBuilder(map);
var newUrl = oldUri.Scheme + "://" + oldUri.Authority + oldUri.AbsolutePath.TrimEnd('/') + "/" + qb.ToQueryString();
request.QueryString = qb.ToQueryString();
var newQo = new ODataQueryOptions(queryOptions.Context, request);
return(newQo);
}
public static ODataQueryOptions FixupOrderBy(ODataQueryOptions queryOptions)
{
return(queryOptions);
var expandQueryString = queryOptions.RawValues.OrderBy;
if (string.IsNullOrEmpty(expandQueryString))
{
return(queryOptions);
}
var request = queryOptions.Request;
var oldUri = new Uri($"{request.Scheme}://{request.Host}{request.Path.ToString().TrimEnd('/')}/{request.QueryString}");
var map = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(oldUri.Query).Where(d => (d.Key.Trim().Length > 0))
.Select(d => new KeyValuePair <string, string>(d.Key, d.Value)).ToList();
bool foundOrderBy = false;
for (int i = 0; i < map.Count; i++)
{
var mapItem = map[i];
if (mapItem.Key == "$orderby")
{
var expandItems = mapItem.Value.Split(',').ToList();
if (expandItems.Count <= 1)
{
continue;
}
foundOrderBy = true;
//map[i] = new KeyValuePair<string, string>(mapItem.Key, "OrderView,OrderItem,OrderItem($expand=OrderItemType),OrderItem($expand=OrderItemActivity),OrderNotes,OrderType,Circuit,OwnerUser,Circuit($expand=ALocation),Circuit($expand=ZLocation),BusinessEntity");
}
}
if (!foundOrderBy)
{
return(queryOptions);
}
var qb = new Microsoft.AspNetCore.Http.Extensions.QueryBuilder(map);
var newUrl = oldUri.Scheme + "://" + oldUri.Authority + oldUri.AbsolutePath.TrimEnd('/') + "/" + qb.ToQueryString();
request.QueryString = qb.ToQueryString();
var newQo = new ODataQueryOptions(queryOptions.Context, request);
return(newQo);
}
public static ODataQueryOptions FixupFilter(ODataQueryOptions queryOptions)
{
var filterQueryString = queryOptions.RawValues.Filter;
if (string.IsNullOrEmpty(filterQueryString))
{
return(queryOptions);
}
var request = queryOptions.Request;
var oldUri = new Uri($"{request.Scheme}://{request.Host}{request.Path.ToString().TrimEnd('/')}/{request.QueryString}");
var map = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(oldUri.Query).Where(d => (d.Key.Trim().Length > 0))
.Select(d => new KeyValuePair <string, string>(d.Key, d.Value)).ToList();
bool filterChanged = false;
for (int i = 0; i < map.Count; i++)
{
var mapItem = map[i];
if (mapItem.Key.ToLower() == "$filter")
{
// swap "substringof" with "contains" and swap parm values
if (mapItem.Value.ToLower().Contains("substringof"))
{
var r = new System.Text.RegularExpressions.Regex(@"substringof\s*?\(\s*?('[^']+?'|[^,]+?)\s*?,\s*?('[^']+?'|[^,]+?)\s*?\)", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
var result = r.Replace(mapItem.Value, m => $"contains({m.Groups[2].Value},{m.Groups[1].Value})");
if (result != mapItem.Value)
{
filterChanged = true;
mapItem = map[i] = new KeyValuePair <string, string>(mapItem.Key, result);
}
}
// OData 4 does not support DateTime. Substitute "datetime('yyyy-mmm-ddThh:mm:ss')" values with "cast(yyyy-mmm-ddThh:mm:ssTZ,Edm.DateTimeOffset)"
if (mapItem.Value.ToLower().Contains("datetime'"))
{
var r = new System.Text.RegularExpressions.Regex(@"datetime\s*?'([^']+?)'", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
var result = r.Replace(mapItem.Value, m =>
{
var origVal = m.Groups[1].Value;
var containsT = origVal.ToUpper().IndexOf('T') > -1;
var containsTZ = (origVal.Count(s => s == '-') > 2) || origVal.IndexOf('+') > -1 || origVal.ToUpper().IndexOf('Z') > -1;
var curUTCoffset = System.TimeZoneInfo.Local.BaseUtcOffset.ToString().Substring(0, 6);
// if has TimeZone, return as is
if (containsTZ)
{
return($"cast({origVal},Edm.DateTimeOffset)");
}
// if no TimeZone, add TZ
if (containsT && !containsTZ)
{
return($"cast({origVal}{curUTCoffset},Edm.DateTimeOffset)");
}
// if no TimeZone, add TZ
if (!containsT || !containsTZ)
{
return($"cast({origVal}{curUTCoffset},Edm.DateTimeOffset)");
}
throw new Exception($"Unable to parse {origVal} as DateTimeOffset value.");
});
if (result != mapItem.Value)
{
filterChanged = true;
mapItem = map[i] = new KeyValuePair <string, string>(mapItem.Key, result);
}
}
}
}
if (!filterChanged)
{
return(queryOptions);
}
var qb = new Microsoft.AspNetCore.Http.Extensions.QueryBuilder(map);
var newUrl = oldUri.Scheme + "://" + oldUri.Authority + oldUri.AbsolutePath.TrimEnd('/') + "/" + qb.ToQueryString();
request.QueryString = qb.ToQueryString();
var newQo = new ODataQueryOptions(queryOptions.Context, request);
return(newQo);
}
