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httpclient.go
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httpclient.go
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package providers
import (
"context"
"io"
"net/http"
"net/url"
"os"
"strings"
"time"
)
type HTTPClient struct {
c ProviderConfig
}
func NewHTTPClient(c ProviderConfig) *HTTPClient {
return &HTTPClient{
c: c,
}
}
func (c *HTTPClient) newRequest(ctx context.Context, url string, body io.Reader, q *url.Values) (*http.Request, error) {
r, err := http.NewRequestWithContext(ctx, "", url, body)
if err != nil {
return nil, err
}
if q != nil {
r.URL.RawQuery = q.Encode()
}
if c.c.UserAgent != "" {
r.Header.Set("User-Agent", c.c.UserAgent)
}
return r, nil
}
func (c *HTTPClient) do(ctx context.Context, method string, r *http.Request) ([]byte, error) {
httpC := &http.Client{
Timeout: 10 * time.Second,
}
if c.c.Log.IsDebug() {
httpC.Timeout = 10 * time.Minute
}
if c.c.HitsLimiter != nil {
err := c.c.HitsLimiter.Wait(ctx)
if err != nil {
return nil, err
}
}
r.Method = method
resp, err := httpC.Do(r)
if err != nil {
c.c.Log.Error().Printf("[%s] %s: %s", r.Method, r.URL.String(), err)
return nil, err
}
defer resp.Body.Close()
buf, err := io.ReadAll(resp.Body)
if err != nil {
c.c.Log.Error().Printf("[%s] %s: (%s): %s", r.Method, r.URL.String(), resp.Status, err)
return nil, err
}
if resp.StatusCode >= 400 {
c.c.Log.Error().Printf("[%s] %s: (%s): %s", r.Method, r.URL.String(), resp.Status, string(buf))
return nil, err
}
if c.c.Log.IsDebug() {
c.c.Log.Trace().Printf("[%s] %s:%s Content-Type:%q", r.Method, r.URL.String(), resp.Status, resp.Header.Get("content-type"))
if strings.Contains(resp.Header.Get("content-type"), "json") {
c.c.Log.Trace().Printf("[%s]\n%s", r.Method, string(buf))
} else {
f, err := os.CreateTemp("", "*.dump")
if err != nil {
c.c.Log.Fatal().Printf("Can't dump response to file: %w", err)
return nil, err
}
defer f.Close()
c.c.Log.Debug().Printf("Response dumped in %q", f.Name())
_, err = f.Write(buf)
}
}
return buf, nil
}
func (c *HTTPClient) Get(ctx context.Context, url string, q *url.Values, body io.Reader) ([]byte, error) {
r, err := c.newRequest(ctx, url, body, q)
if err != nil {
return nil, err
}
return c.do(ctx, http.MethodGet, r)
}
func (c *HTTPClient) Head(ctx context.Context, url string, q *url.Values, body io.Reader) ([]byte, error) {
r, err := c.newRequest(ctx, url, body, q)
if err != nil {
return nil, err
}
return c.do(ctx, http.MethodHead, r)
}
func (c *HTTPClient) Post(ctx context.Context, url string, q *url.Values, body io.Reader) ([]byte, error) {
r, err := c.newRequest(ctx, url, body, q)
if err != nil {
return nil, err
}
return c.do(ctx, http.MethodPost, r)
}