Sanitize URLs for bucket fetch error messages.

Co-authored-by: Jagpreet Singh Tamber <jagpreetstamber@gmail.com>
Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

internal/controller/bucket_controller.go

@@ -728,7 +728,7 @@ func fetchEtagIndex(ctx context.Context, provider BucketProvider, obj *bucketv1.
 	path := filepath.Join(tempDir, sourceignore.IgnoreFile)
 	if _, err := provider.FGetObject(ctxTimeout, obj.Spec.BucketName, sourceignore.IgnoreFile, path); err != nil {
 		if !provider.ObjectIsNotFound(err) {
-			return err
+			return fmt.Errorf("failed to get Etag for '%s' object: %w", sourceignore.IgnoreFile, serror.SanitizeError(err))
 		}
 	}
 	ps, err := sourceignore.ReadIgnoreFile(path, nil)
@@ -792,7 +792,7 @@ func fetchIndexFiles(ctx context.Context, provider BucketProvider, obj *bucketv1
 						index.Delete(k)
 						return nil
 					}
-					return fmt.Errorf("failed to get '%s' object: %w", k, err)
+					return fmt.Errorf("failed to get '%s' object: %w", k, serror.SanitizeError(err))
 				}
 				if t != etag {
 					index.Add(k, etag)

internal/error/sanitized.go

@@ -0,0 +1,76 @@
+/*
+Copyright 2024 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package error
+
+import (
+	"fmt"
+	"net/url"
+	"regexp"
+)
+
+type SanitizedError struct {
+	err string
+}
+
+func (e SanitizedError) Error() string {
+	return e.err
+}
+
+// SanitizeError extracts all URLs from the error message
+// and replaces them with the URL without the query string.
+func SanitizeError(err error) SanitizedError {
+	errorMessage := err.Error()
+	for _, u := range extractURLs(errorMessage) {
+		urlWithoutQueryString, err := removeQueryString(u)
+		if err == nil {
+			re, err := regexp.Compile(fmt.Sprintf("%s*", regexp.QuoteMeta(u)))
+			if err == nil {
+				errorMessage = re.ReplaceAllString(errorMessage, urlWithoutQueryString)
+			}
+		}
+	}
+
+	return SanitizedError{errorMessage}
+}
+
+// removeQueryString takes a URL string as input and returns the URL without the query string.
+func removeQueryString(urlStr string) (string, error) {
+	// Parse the URL.
+	u, err := url.Parse(urlStr)
+	if err != nil {
+		return "", err
+	}
+
+	// Rebuild the URL without the query string.
+	u.RawQuery = ""
+	return u.String(), nil
+}
+
+// extractURLs takes a log message as input and returns the URLs found.
+func extractURLs(logMessage string) []string {
+	// Define a regular expression to match a URL.
+	// This is a simple pattern and might need to be adjusted depending on the log message format.
+	urlRegex := regexp.MustCompile(`https?://[^\s]+`)
+
+	// Find the first match in the log message.
+	matches := urlRegex.FindAllString(logMessage, -1)
+	if len(matches) == 0 {
+		return []string{}
+	}
+
+	return matches
+}

internal/error/sanitized_test.go

@@ -0,0 +1,141 @@
+/*
+Copyright 2024 The Flux authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package error
+
+import (
+	"errors"
+	"testing"
+
+	. "github.com/onsi/gomega"
+)
+
+func Test_extractURLs(t *testing.T) {
+
+	tests := []struct {
+		name       string
+		logMessage string
+		wantUrls   []string
+	}{
+		{
+			name:       "Log Contains single URL",
+			logMessage: "Get \"https://blobstorage.blob.core.windows.net/container/index.yaml?se=2024-05-01T16%3A28%3A26Z&sig=Signature&sp=rl&sr=c&st=2024-02-01T16%3A28%3A26Z&sv=2022-11-02\": dial tcp 20.60.53.129:443: connect: connection refused",
+			wantUrls:   []string{"https://blobstorage.blob.core.windows.net/container/index.yaml?se=2024-05-01T16%3A28%3A26Z&sig=Signature&sp=rl&sr=c&st=2024-02-01T16%3A28%3A26Z&sv=2022-11-02\":"},
+		},
+		{
+			name:       "Log Contains multiple URL",
+			logMessage: "Get \"https://blobstorage.blob.core.windows.net/container/index.yaml?abc=es  https://blobstorage1.blob.core.windows.net/container/index.yaml?abc=no : dial tcp 20.60.53.129:443: connect: connection refused",
+			wantUrls: []string{
+				"https://blobstorage.blob.core.windows.net/container/index.yaml?abc=es",
+				"https://blobstorage1.blob.core.windows.net/container/index.yaml?abc=no",
+			},
+		},
+		{
+			name:       "Log Contains No URL",
+			logMessage: "Log message without URL",
+			wantUrls:   []string{},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			g := NewWithT(t)
+
+			urls := extractURLs(tt.logMessage)
+
+			g.Expect(len(urls)).To(Equal(len(tt.wantUrls)))
+			for i := range tt.wantUrls {
+				g.Expect(urls[i]).To(Equal(tt.wantUrls[i]))
+			}
+		})
+	}
+}
+
+func Test_removeQueryString(t *testing.T) {
+
+	tests := []struct {
+		name    string
+		urlStr  string
+		wantUrl string
+	}{
+		{
+			name:    "URL with query string",
+			urlStr:  "https://blobstorage.blob.core.windows.net/container/index.yaml?se=2024-05-01T16%3A28%3A26Z&sig=Signature&sp=rl&sr=c&st=2024-02-01T16%3A28%3A26Z&sv=2022-11-02",
+			wantUrl: "https://blobstorage.blob.core.windows.net/container/index.yaml",
+		},
+		{
+			name:    "URL without query string",
+			urlStr:  "https://blobstorage.blob.core.windows.net/container/index.yaml",
+			wantUrl: "https://blobstorage.blob.core.windows.net/container/index.yaml",
+		},
+		{
+			name:    "URL with query string and port",
+			urlStr:  "https://blobstorage.blob.core.windows.net:443/container/index.yaml?se=2024-05-01T16%3A28%3A26Z&sig=Signature&sp=rl&sr=c&st=2024-02-01T16%3A28%3A26Z&sv=2022-11-02",
+			wantUrl: "https://blobstorage.blob.core.windows.net:443/container/index.yaml",
+		},
+		{
+			name:    "Invalid URL",
+			urlStr:  "NoUrl",
+			wantUrl: "NoUrl",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			g := NewWithT(t)
+
+			urlWithoutQueryString, err := removeQueryString(tt.urlStr)
+
+			g.Expect(err).To(BeNil())
+			g.Expect(urlWithoutQueryString).To(Equal(tt.wantUrl))
+		})
+	}
+}
+
+func Test_SanitizeError(t *testing.T) {
+
+	tests := []struct {
+		name           string
+		errMessage     string
+		wantErrMessage string
+	}{
+		{
+			name:           "Log message with URL with query string",
+			errMessage:     "Get \"https://blobstorage.blob.core.windows.net/container/index.yaml?se=2024-05-01T16%3A28%3A26Z&sig=Signature&sp=rl&sr=c&st=2024-02-01T16%3A28%3A26Z&sv=2022-11-02\": dial tcp 20.60.53.129:443: connect: connection refused",
+			wantErrMessage: "Get \"https://blobstorage.blob.core.windows.net/container/index.yaml dial tcp 20.60.53.129:443: connect: connection refused",
+		},
+		{
+			name:           "Log message without URL",
+			errMessage:     "Log message contains no URL",
+			wantErrMessage: "Log message contains no URL",
+		},
+
+		{
+			name:           "Log message with multiple Urls",
+			errMessage:     "Get \"https://blobstorage.blob.core.windows.net/container/index.yaml?abc=es  https://blobstorage1.blob.core.windows.net/container/index.yaml?abc=no dial tcp 20.60.53.129:443: connect: connection refused",
+			wantErrMessage: "Get \"https://blobstorage.blob.core.windows.net/container/index.yaml  https://blobstorage1.blob.core.windows.net/container/index.yaml dial tcp 20.60.53.129:443: connect: connection refused",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			g := NewWithT(t)
+
+			err := SanitizeError(errors.New(tt.errMessage))
+			g.Expect(err.Error()).To(Equal(tt.wantErrMessage))
+		})
+	}
+}