mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
80 lines
2.3 KiB
Go
80 lines
2.3 KiB
Go
// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may 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, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package swag
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import (
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"path/filepath"
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"strings"
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"time"
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)
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// LoadHTTPTimeout the default timeout for load requests
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var LoadHTTPTimeout = 30 * time.Second
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// LoadFromFileOrHTTP loads the bytes from a file or a remote http server based on the path passed in
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func LoadFromFileOrHTTP(path string) ([]byte, error) {
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return LoadStrategy(path, ioutil.ReadFile, loadHTTPBytes(LoadHTTPTimeout))(path)
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}
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// LoadFromFileOrHTTPWithTimeout loads the bytes from a file or a remote http server based on the path passed in
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// timeout arg allows for per request overriding of the request timeout
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func LoadFromFileOrHTTPWithTimeout(path string, timeout time.Duration) ([]byte, error) {
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return LoadStrategy(path, ioutil.ReadFile, loadHTTPBytes(timeout))(path)
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}
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// LoadStrategy returns a loader function for a given path or uri
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func LoadStrategy(path string, local, remote func(string) ([]byte, error)) func(string) ([]byte, error) {
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if strings.HasPrefix(path, "http") {
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return remote
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}
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return func(pth string) ([]byte, error) {
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upth, err := pathUnescape(pth)
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if err != nil {
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return nil, err
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}
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return local(filepath.FromSlash(upth))
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}
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}
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func loadHTTPBytes(timeout time.Duration) func(path string) ([]byte, error) {
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return func(path string) ([]byte, error) {
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client := &http.Client{Timeout: timeout}
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req, err := http.NewRequest("GET", path, nil)
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if err != nil {
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return nil, err
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}
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resp, err := client.Do(req)
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defer func() {
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if resp != nil {
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if e := resp.Body.Close(); e != nil {
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log.Println(e)
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}
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}
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}()
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if err != nil {
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return nil, err
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}
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("could not access document at %q [%s] ", path, resp.Status)
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}
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return ioutil.ReadAll(resp.Body)
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}
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}
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