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api.go
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api.go
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package autoscan
import (
"fmt"
"net/http"
"net/url"
"github.com/rs/zerolog"
"github.com/aleksasiriski/autoscan"
)
type apiClient struct {
client *http.Client
log zerolog.Logger
baseURL string
user string
pass string
}
func newAPIClient(baseURL string, user string, pass string, log zerolog.Logger) apiClient {
return apiClient{
client: &http.Client{},
log: log,
baseURL: baseURL,
user: user,
pass: pass,
}
}
func (c apiClient) do(req *http.Request) (*http.Response, error) {
res, err := c.client.Do(req)
if err != nil {
return nil, fmt.Errorf("%v: %w", err, autoscan.ErrTargetUnavailable)
}
if res.StatusCode >= 200 && res.StatusCode < 300 {
return res, nil
}
c.log.Trace().
Stringer("request_url", res.Request.URL).
Int("response_status", res.StatusCode).
Msg("Request failed")
// statusCode not in the 2xx range, close response
res.Body.Close()
switch res.StatusCode {
case 401:
return nil, fmt.Errorf("invalid basic auth: %s: %w", res.Status, autoscan.ErrFatal)
case 404, 500, 502, 503, 504:
return nil, fmt.Errorf("%s: %w", res.Status, autoscan.ErrTargetUnavailable)
default:
return nil, fmt.Errorf("%s: %w", res.Status, autoscan.ErrFatal)
}
}
func (c apiClient) Available() error {
// create request
req, err := http.NewRequest("HEAD", autoscan.JoinURL(c.baseURL, "triggers", "manual"), nil)
if err != nil {
return fmt.Errorf("failed creating head request: %v: %w", err, autoscan.ErrFatal)
}
if c.user != "" && c.pass != "" {
req.SetBasicAuth(c.user, c.pass)
}
// send request
res, err := c.do(req)
if err != nil {
return fmt.Errorf("availability: %w", err)
}
defer res.Body.Close()
return nil
}
func (c apiClient) Scan(path string) error {
// create request
req, err := http.NewRequest("POST", autoscan.JoinURL(c.baseURL, "triggers", "manual"), nil)
if err != nil {
return fmt.Errorf("failed creating scan request: %v: %w", err, autoscan.ErrFatal)
}
if c.user != "" && c.pass != "" {
req.SetBasicAuth(c.user, c.pass)
}
q := url.Values{}
q.Add("dir", path)
req.URL.RawQuery = q.Encode()
// send request
res, err := c.do(req)
if err != nil {
return fmt.Errorf("scan: %w", err)
}
defer res.Body.Close()
return nil
}