updated dependencies

vendor/github.com/blevesearch/bleve/geo/geo.go

@@ -33,10 +33,18 @@ var minLonRad = minLon * degreesToRadian
 var minLatRad = minLat * degreesToRadian
 var maxLonRad = maxLon * degreesToRadian
 var maxLatRad = maxLat * degreesToRadian
-var geoTolerance = 1E-6
+var geoTolerance = 1e-6
 var lonScale = float64((uint64(0x1)<<GeoBits)-1) / 360.0
 var latScale = float64((uint64(0x1)<<GeoBits)-1) / 180.0
 
+var geoHashMaxLength = 12
+
+// Point represents a geo point.
+type Point struct {
+	Lon float64 `json:"lon"`
+	Lat float64 `json:"lat"`
+}
+
 // MortonHash computes the morton hash value for the provided geo point
 // This point is ordered as lon, lat.
 func MortonHash(lon, lat float64) uint64 {
@@ -168,3 +176,35 @@ func checkLongitude(longitude float64) error {
 	}
 	return nil
 }
+
+func BoundingRectangleForPolygon(polygon []Point) (
+	float64, float64, float64, float64, error) {
+	err := checkLongitude(polygon[0].Lon)
+	if err != nil {
+		return 0, 0, 0, 0, err
+	}
+	err = checkLatitude(polygon[0].Lat)
+	if err != nil {
+		return 0, 0, 0, 0, err
+	}
+	maxY, minY := polygon[0].Lat, polygon[0].Lat
+	maxX, minX := polygon[0].Lon, polygon[0].Lon
+	for i := 1; i < len(polygon); i++ {
+		err := checkLongitude(polygon[i].Lon)
+		if err != nil {
+			return 0, 0, 0, 0, err
+		}
+		err = checkLatitude(polygon[i].Lat)
+		if err != nil {
+			return 0, 0, 0, 0, err
+		}
+
+		maxY = math.Max(maxY, polygon[i].Lat)
+		minY = math.Min(minY, polygon[i].Lat)
+
+		maxX = math.Max(maxX, polygon[i].Lon)
+		minX = math.Min(minX, polygon[i].Lon)
+	}
+
+	return minX, maxY, maxX, minY, nil
+}

vendor/github.com/blevesearch/bleve/geo/parse.go

@@ -85,9 +85,11 @@ func ExtractGeoPoint(thing interface{}) (lon, lat float64, success bool) {
 			}
 		} else {
 			// geohash
-			lat, lon = DecodeGeoHash(geoStr)
-			foundLat = true
-			foundLon = true
+			if len(geoStr) <= geoHashMaxLength {
+				lat, lon = DecodeGeoHash(geoStr)
+				foundLat = true
+				foundLon = true
+			}
 		}
 	}