miniflux-v2/reader/http/client.go

96 lines
2.1 KiB
Go

// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package http
import (
"crypto/tls"
"fmt"
"github.com/miniflux/miniflux2/helper"
"log"
"net/http"
"net/url"
"time"
)
const HTTP_USER_AGENT = "Miniflux <https://miniflux.net/>"
type HttpClient struct {
url string
etagHeader string
lastModifiedHeader string
Insecure bool
}
func (h *HttpClient) Get() (*ServerResponse, error) {
defer helper.ExecutionTime(time.Now(), fmt.Sprintf("[HttpClient:Get] url=%s", h.url))
u, _ := url.Parse(h.url)
req := &http.Request{
URL: u,
Method: "GET",
Header: h.buildHeaders(),
}
client := h.buildClient()
resp, err := client.Do(req)
if err != nil {
return nil, err
}
response := &ServerResponse{
Body: resp.Body,
StatusCode: resp.StatusCode,
EffectiveURL: resp.Request.URL.String(),
LastModified: resp.Header.Get("Last-Modified"),
ETag: resp.Header.Get("ETag"),
ContentType: resp.Header.Get("Content-Type"),
}
log.Println("[HttpClient:Get]",
"OriginalURL:", h.url,
"StatusCode:", response.StatusCode,
"ETag:", response.ETag,
"LastModified:", response.LastModified,
"EffectiveURL:", response.EffectiveURL,
)
return response, err
}
func (h *HttpClient) buildClient() http.Client {
if h.Insecure {
transport := &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
return http.Client{Transport: transport}
}
return http.Client{}
}
func (h *HttpClient) buildHeaders() http.Header {
headers := make(http.Header)
headers.Add("User-Agent", HTTP_USER_AGENT)
if h.etagHeader != "" {
headers.Add("If-None-Match", h.etagHeader)
}
if h.lastModifiedHeader != "" {
headers.Add("If-Modified-Since", h.lastModifiedHeader)
}
return headers
}
func NewHttpClient(url string) *HttpClient {
return &HttpClient{url: url, Insecure: false}
}
func NewHttpClientWithCacheHeaders(url, etagHeader, lastModifiedHeader string) *HttpClient {
return &HttpClient{url: url, etagHeader: etagHeader, lastModifiedHeader: lastModifiedHeader, Insecure: false}
}