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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package prober | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "net/url" | ||
|
|
||
| "github.com/go-kit/log" | ||
| "github.com/go-kit/log/level" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/ribbybibby/ssl_exporter/v2/config" | ||
| ) | ||
|
|
||
| // ProbeHTTPFile performs a http_file probe | ||
| func ProbeHTTPFile(ctx context.Context, logger log.Logger, target string, module config.Module, registry *prometheus.Registry) error { | ||
| tlsConfig, err := config.NewTLSConfig(&module.TLSConfig) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| targetURL, err := url.Parse(target) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // If server name isn't set, then use the target hostname | ||
| if tlsConfig.ServerName == "" { | ||
| tlsConfig.ServerName = targetURL.Hostname() | ||
| } | ||
|
|
||
| proxy := http.ProxyFromEnvironment | ||
| if module.HTTPS.ProxyURL.URL != nil { | ||
| proxy = http.ProxyURL(module.HTTPS.ProxyURL.URL) | ||
| } | ||
|
|
||
| client := &http.Client{ | ||
| CheckRedirect: func(req *http.Request, via []*http.Request) error { | ||
| return http.ErrUseLastResponse | ||
| }, | ||
| Transport: &http.Transport{ | ||
| TLSClientConfig: tlsConfig, | ||
| Proxy: proxy, | ||
| DisableKeepAlives: true, | ||
| }, | ||
| } | ||
|
|
||
| // Issue a GET request to the target | ||
| request, err := http.NewRequest(http.MethodGet, targetURL.String(), nil) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| request = request.WithContext(ctx) | ||
| resp, err := client.Do(request) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer func() { | ||
| _, err := io.Copy(ioutil.Discard, resp.Body) | ||
| if err != nil { | ||
| level.Error(logger).Log("msg", err) | ||
| } | ||
| resp.Body.Close() | ||
| }() | ||
|
|
||
| data, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| certs, err := decodeCertificates(data) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if len(certs) == 0 { | ||
| return fmt.Errorf("no certificates in response body") | ||
| } | ||
|
|
||
| return collectCertificateMetrics(certs, registry) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package prober | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/x509" | ||
| "encoding/pem" | ||
| "net/http" | ||
| "net/http/httptest" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/ribbybibby/ssl_exporter/v2/config" | ||
| "github.com/ribbybibby/ssl_exporter/v2/test" | ||
| ) | ||
|
|
||
| func TestProbeHTTPFile(t *testing.T) { | ||
| certPEM, _ := test.GenerateTestCertificate(time.Now().Add(time.Hour * 1)) | ||
| block, _ := pem.Decode([]byte(certPEM)) | ||
| cert, err := x509.ParseCertificate(block.Bytes) | ||
| if err != nil { | ||
| t.Fatalf("parsing cert: %s", err) | ||
| } | ||
|
|
||
| server := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| w.Write(certPEM) | ||
| })) | ||
|
|
||
| server.Start() | ||
| defer server.Close() | ||
|
|
||
| registry := prometheus.NewRegistry() | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) | ||
| defer cancel() | ||
|
|
||
| if err := ProbeHTTPFile(ctx, newTestLogger(), server.URL+"/file", config.Module{}, registry); err != nil { | ||
| t.Fatalf("error: %s", err) | ||
| } | ||
|
|
||
| checkCertificateMetrics(cert, registry, t) | ||
| } | ||
|
|
||
| func TestProbeHTTPFile_HTTPS(t *testing.T) { | ||
| server, certPEM, _, caFile, teardown, err := test.SetupHTTPSServer() | ||
| if err != nil { | ||
| t.Fatalf(err.Error()) | ||
| } | ||
| defer teardown() | ||
|
|
||
| block, _ := pem.Decode([]byte(certPEM)) | ||
| cert, err := x509.ParseCertificate(block.Bytes) | ||
| if err != nil { | ||
| t.Fatalf("parsing cert: %s", err) | ||
| } | ||
|
|
||
| server.Config.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| w.Write(certPEM) | ||
| }) | ||
|
|
||
| server.StartTLS() | ||
| defer server.Close() | ||
|
|
||
| module := config.Module{ | ||
| TLSConfig: config.TLSConfig{ | ||
| CAFile: caFile, | ||
| InsecureSkipVerify: false, | ||
| }, | ||
| } | ||
|
|
||
| registry := prometheus.NewRegistry() | ||
|
|
||
| ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) | ||
| defer cancel() | ||
|
|
||
| if err := ProbeHTTPFile(ctx, newTestLogger(), server.URL+"/file", module, registry); err != nil { | ||
| t.Fatalf("error: %s", err) | ||
| } | ||
|
|
||
| checkCertificateMetrics(cert, registry, t) | ||
| } |
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