85 lines
2.1 KiB
Go
85 lines
2.1 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package common
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import (
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"fmt"
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"net"
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"net/url"
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"regexp"
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"strconv"
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"strings"
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)
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var hasScheme = regexp.MustCompile(`^([a-z][a-z0-9+\-.]*)://`)
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// MakeURL creates the url based on the url configuration.
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// Adds missing parts with defaults (scheme, host, port)
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func MakeURL(defaultScheme string, defaultPath string, rawURL string, defaultPort int) (string, error) {
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if defaultScheme == "" {
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defaultScheme = "http"
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}
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if !hasScheme.MatchString(rawURL) {
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rawURL = fmt.Sprintf("%v://%v", defaultScheme, rawURL)
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}
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addr, err := url.Parse(rawURL)
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if err != nil {
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return "", err
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}
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scheme := addr.Scheme
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host := addr.Host
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port := strconv.Itoa(defaultPort)
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if host == "" {
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host = "localhost"
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} else {
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// split host and optional port
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if splitHost, splitPort, err := net.SplitHostPort(host); err == nil {
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host = splitHost
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port = splitPort
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}
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// Check if ipv6
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if strings.Count(host, ":") > 1 && strings.Count(host, "]") == 0 {
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host = "[" + host + "]"
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}
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}
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// Assign default path if not set
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if addr.Path == "" {
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addr.Path = defaultPath
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}
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// reconstruct url
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addr.Scheme = scheme
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addr.Host = host + ":" + port
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return addr.String(), nil
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}
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func EncodeURLParams(url string, params url.Values) string {
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if len(params) == 0 {
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return url
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}
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return strings.Join([]string{url, "?", params.Encode()}, "")
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}
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