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// 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"
"log"
"net/http"
"net/url"
"time"
"github.com/miniflux/miniflux2/helper"
)
const userAgent = "Miniflux <https://miniflux.net/>"
const requestTimeout = 300
// Client is a HTTP Client :)
type Client struct {
url string
etagHeader string
lastModifiedHeader string
Insecure bool
}
// Get execute a GET HTTP request.
func (h *Client) Get() (*Response, 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: http.MethodGet,
Header: h.buildHeaders(),
}
client := h.buildClient()
resp, err := client.Do(req)
if err != nil {
return nil, err
}
response := &Response{
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 *Client) buildClient() http.Client {
client := http.Client{Timeout: time.Duration(requestTimeout * time.Second)}
if h.Insecure {
client.Transport = &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
}
return client
}
func (h *Client) buildHeaders() http.Header {
headers := make(http.Header)
headers.Add("User-Agent", userAgent)
if h.etagHeader != "" {
headers.Add("If-None-Match", h.etagHeader)
}
if h.lastModifiedHeader != "" {
headers.Add("If-Modified-Since", h.lastModifiedHeader)
}
return headers
}
// NewClient returns a new HTTP client.
func NewClient(url string) *Client {
return &Client{url: url, Insecure: false}
}
// NewClientWithCacheHeaders returns a new HTTP client that send cache headers.
func NewClientWithCacheHeaders(url, etagHeader, lastModifiedHeader string) *Client {
return &Client{url: url, etagHeader: etagHeader, lastModifiedHeader: lastModifiedHeader, Insecure: false}
}
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