Initial commit

checker/collect.go

@@ -0,0 +1,46 @@
+package checker
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+
+	sdk "git.happydns.org/checker-sdk-go/checker"
+)
+
+func (p *matrixProvider) Collect(ctx context.Context, opts sdk.CheckerOptions) (any, error) {
+	domain, _ := opts["serviceDomain"].(string)
+	if domain == "" {
+		return nil, fmt.Errorf("serviceDomain is required")
+	}
+	domain = strings.TrimSuffix(domain, ".")
+
+	testerURI, _ := opts["federationTesterServer"].(string)
+	if testerURI == "" {
+		testerURI = "https://federationtester.matrix.org/api/report?server_name=%s"
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, fmt.Sprintf(testerURI, domain), nil)
+	if err != nil {
+		return nil, fmt.Errorf("unable to build the request: %w", err)
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("unable to perform the test: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 300 {
+		return nil, fmt.Errorf("federation tester returned status %d; check https://federationtester.matrix.org/#%s", resp.StatusCode, domain)
+	}
+
+	var data MatrixFederationData
+	if err := json.NewDecoder(resp.Body).Decode(&data); err != nil {
+		return nil, fmt.Errorf("failed to decode federation tester response: %w", err)
+	}
+
+	return &data, nil
+}