cloudflared-mirror/diagnostic/client.go

102 lines
2.2 KiB
Go

package diagnostic
import (
"context"
"encoding/json"
"fmt"
"net/http"
"net/url"
"strconv"
"github.com/cloudflare/cloudflared/logger"
)
const configurationEndpoint = "diag/configuration"
type httpClient struct {
http.Client
baseURL url.URL
}
func NewHTTPClient(baseURL url.URL) *httpClient {
httpTransport := http.Transport{
TLSHandshakeTimeout: defaultTimeout,
ResponseHeaderTimeout: defaultTimeout,
}
return &httpClient{
http.Client{
Transport: &httpTransport,
Timeout: defaultTimeout,
},
baseURL,
}
}
func (client *httpClient) GET(ctx context.Context, url string) (*http.Response, error) {
req, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)
if err != nil {
return nil, fmt.Errorf("error creating GET request: %w", err)
}
req.Header.Add("Accept", "application/json;version=1")
response, err := client.Do(req)
if err != nil {
return nil, fmt.Errorf("error GET request: %w", err)
}
return response, nil
}
type LogConfiguration struct {
logFile string
logDirectory string
uid int // the uid of the user that started cloudflared
}
func (client *httpClient) GetLogConfiguration(ctx context.Context) (*LogConfiguration, error) {
endpoint, err := url.JoinPath(client.baseURL.String(), configurationEndpoint)
if err != nil {
return nil, fmt.Errorf("error parsing URL: %w", err)
}
response, err := client.GET(ctx, endpoint)
if err != nil {
return nil, err
}
defer response.Body.Close()
var data map[string]string
if err := json.NewDecoder(response.Body).Decode(&data); err != nil {
return nil, fmt.Errorf("failed to decode body: %w", err)
}
uidStr, exists := data[configurationKeyUID]
if !exists {
return nil, ErrKeyNotFound
}
uid, err := strconv.Atoi(uidStr)
if err != nil {
return nil, fmt.Errorf("error convertin pid to int: %w", err)
}
logFile, exists := data[logger.LogFileFlag]
if exists {
return &LogConfiguration{logFile, "", uid}, nil
}
logDirectory, exists := data[logger.LogDirectoryFlag]
if exists {
return &LogConfiguration{"", logDirectory, uid}, nil
}
return nil, ErrKeyNotFound
}
type HTTPClient interface {
GetLogConfiguration(ctx context.Context) (LogConfiguration, error)
}