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Description
This PR is responsible for better logging of proxyscotch.

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  • My pull request adheres to the code style of this project
  • My code requires changes to the documentation
  • I have updated the documentation as required
  • All the tests have passed

userAgent := request.Header.Get("User-Agent")

// Log incoming request
InfoLogger.Printf("Received %s request from %s for %s (User-Agent: %s)", method, clientIP, requestURL, userAgent)

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Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the requestURL before logging it. This can be done by removing any newline characters from the requestURL to prevent log injection attacks. We will use the strings.ReplaceAll function to replace newline characters with an empty string.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -328,3 +328,4 @@
 	method := request.Method
-	requestURL := request.URL.String()
+	requestURL := strings.ReplaceAll(request.URL.String(), "\n", "")
+	requestURL = strings.ReplaceAll(requestURL, "\r", "")
 	userAgent := request.Header.Get("User-Agent")
EOF
@@ -328,3 +328,4 @@
method := request.Method
requestURL := request.URL.String()
requestURL := strings.ReplaceAll(request.URL.String(), "\n", "")
requestURL = strings.ReplaceAll(requestURL, "\r", "")
userAgent := request.Header.Get("User-Agent")
Copilot is powered by AI and may make mistakes. Always verify output.
userAgent := request.Header.Get("User-Agent")

// Log incoming request
InfoLogger.Printf("Received %s request from %s for %s (User-Agent: %s)", method, clientIP, requestURL, userAgent)

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the userAgent value before logging it. This can be done by removing any newline characters from the userAgent string to prevent log forgery. We will use the strings.ReplaceAll function to replace newline characters with an empty string. This ensures that the log entry remains a single line and cannot be manipulated by a malicious user.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -330,2 +330,5 @@
 	userAgent := request.Header.Get("User-Agent")
+	// Sanitize userAgent to prevent log forgery
+	userAgent = strings.ReplaceAll(userAgent, "\n", "")
+	userAgent = strings.ReplaceAll(userAgent, "\r", "")
 
EOF
@@ -330,2 +330,5 @@
userAgent := request.Header.Get("User-Agent")
// Sanitize userAgent to prevent log forgery
userAgent = strings.ReplaceAll(userAgent, "\n", "")
userAgent = strings.ReplaceAll(userAgent, "\r", "")

Copilot is powered by AI and may make mistakes. Always verify output.
if err != nil {
ErrorLogger.Printf("Failed to write error response: %v", err)
}
ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, origin)

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Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the origin value before logging it. This can be done by removing any newline characters from the origin string to prevent log injection. We will use the strings.ReplaceAll function to replace newline characters with an empty string. This ensures that the log entry cannot be manipulated by injecting new lines.

We will make the following changes in the file libproxy/proxy.go:

  1. Sanitize the origin value by removing newline characters before logging it.
Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -360,3 +360,5 @@
 			}
-			ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, origin)
+			sanitizedOrigin := strings.ReplaceAll(origin, "\n", "")
+			sanitizedOrigin = strings.ReplaceAll(sanitizedOrigin, "\r", "")
+			ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, sanitizedOrigin)
 			return
EOF
@@ -360,3 +360,5 @@
}
ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, origin)
sanitizedOrigin := strings.ReplaceAll(origin, "\n", "")
sanitizedOrigin = strings.ReplaceAll(sanitizedOrigin, "\r", "")
ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, sanitizedOrigin)
return
Copilot is powered by AI and may make mistakes. Always verify output.
// If it is not an allowed origin, redirect back to hoppscotch.io.
response.Header().Add("Location", "https://hoppscotch.io/")
response.WriteHeader(301)
InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, origin)

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the origin value before logging it. This can be done by removing any newline characters from the origin string to prevent log forgery. We will use the strings.ReplaceAll function to replace newline characters with an empty string. This ensures that the log entry cannot be manipulated by injecting new lines.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -350,2 +350,4 @@
 	origin := request.Header.Get("Origin")
+	sanitizedOrigin := strings.ReplaceAll(origin, "\n", "")
+	sanitizedOrigin = strings.ReplaceAll(sanitizedOrigin, "\r", "")
 	if origin == "" || !isAllowedOrigin(origin) {
@@ -360,3 +362,3 @@
 			}
-			ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, origin)
+			ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, sanitizedOrigin)
 			return
@@ -366,3 +368,3 @@
 		response.WriteHeader(301)
-		InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, origin)
+		InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, sanitizedOrigin)
 		return
@@ -370,4 +372,4 @@
 		// Otherwise set the appropriate CORS policy and continue.
-		response.Header().Add("Access-Control-Allow-Origin", origin)
-		DebugLogger.Printf("Allowed request from origin: %s", origin)
+		response.Header().Add("Access-Control-Allow-Origin", sanitizedOrigin)
+		DebugLogger.Printf("Allowed request from origin: %s", sanitizedOrigin)
 	}
EOF
@@ -350,2 +350,4 @@
origin := request.Header.Get("Origin")
sanitizedOrigin := strings.ReplaceAll(origin, "\n", "")
sanitizedOrigin = strings.ReplaceAll(sanitizedOrigin, "\r", "")
if origin == "" || !isAllowedOrigin(origin) {
@@ -360,3 +362,3 @@
}
ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, origin)
ErrorLogger.Printf("Denied access to %s from disallowed origin: %s", clientIP, sanitizedOrigin)
return
@@ -366,3 +368,3 @@
response.WriteHeader(301)
InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, origin)
InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, sanitizedOrigin)
return
@@ -370,4 +372,4 @@
// Otherwise set the appropriate CORS policy and continue.
response.Header().Add("Access-Control-Allow-Origin", origin)
DebugLogger.Printf("Allowed request from origin: %s", origin)
response.Header().Add("Access-Control-Allow-Origin", sanitizedOrigin)
DebugLogger.Printf("Allowed request from origin: %s", sanitizedOrigin)
}
Copilot is powered by AI and may make mistakes. Always verify output.
return
} else {
// Otherwise set the appropriate CORS policy and continue.
response.Header().Add("Access-Control-Allow-Origin", request.Header.Get("Origin"))
response.Header().Add("Access-Control-Allow-Origin", origin)
DebugLogger.Printf("Allowed request from origin: %s", origin)

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the origin value before logging it. This can be done by removing any newline characters and other potentially harmful characters from the origin string. We can use the strings.ReplaceAll function to replace newline characters with an empty string. This ensures that the log entries are safe and cannot be manipulated by user input.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -350,2 +350,5 @@
 	origin := request.Header.Get("Origin")
+	// Sanitize the origin value to prevent log forgery
+	sanitizedOrigin := strings.ReplaceAll(origin, "\n", "")
+	sanitizedOrigin = strings.ReplaceAll(sanitizedOrigin, "\r", "")
 	if origin == "" || !isAllowedOrigin(origin) {
@@ -366,3 +369,3 @@
 		response.WriteHeader(301)
-		InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, origin)
+		InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, sanitizedOrigin)
 		return
@@ -371,3 +374,3 @@
 		response.Header().Add("Access-Control-Allow-Origin", origin)
-		DebugLogger.Printf("Allowed request from origin: %s", origin)
+		DebugLogger.Printf("Allowed request from origin: %s", sanitizedOrigin)
 	}
EOF
@@ -350,2 +350,5 @@
origin := request.Header.Get("Origin")
// Sanitize the origin value to prevent log forgery
sanitizedOrigin := strings.ReplaceAll(origin, "\n", "")
sanitizedOrigin = strings.ReplaceAll(sanitizedOrigin, "\r", "")
if origin == "" || !isAllowedOrigin(origin) {
@@ -366,3 +369,3 @@
response.WriteHeader(301)
InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, origin)
InfoLogger.Printf("Redirected request from %s with disallowed origin: %s", clientIP, sanitizedOrigin)
return
@@ -371,3 +374,3 @@
response.Header().Add("Access-Control-Allow-Origin", origin)
DebugLogger.Printf("Allowed request from origin: %s", origin)
DebugLogger.Printf("Allowed request from origin: %s", sanitizedOrigin)
}
Copilot is powered by AI and may make mistakes. Always verify output.

DebugLogger.Printf("Sending proxied request to %s", proxyRequest.URL.String())

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the user input before logging it. Specifically, we should ensure that any user-provided URL is properly escaped to prevent log injection attacks. We can use the strings.ReplaceAll function to remove any newline characters from the URL before logging it. This will prevent a malicious user from injecting new log entries or manipulating the log output.

  1. Identify the lines where user input is logged.
  2. Sanitize the user input by removing newline characters.
  3. Replace the original log statements with the sanitized input.
Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -599,3 +599,5 @@
 
-	DebugLogger.Printf("Sending proxied request to %s", proxyRequest.URL.String())
+	sanitizedURL := strings.ReplaceAll(proxyRequest.URL.String(), "\n", "")
+	sanitizedURL = strings.ReplaceAll(sanitizedURL, "\r", "")
+	DebugLogger.Printf("Sending proxied request to %s", sanitizedURL)
 	proxyStartTime := time.Now()
EOF
@@ -599,3 +599,5 @@

DebugLogger.Printf("Sending proxied request to %s", proxyRequest.URL.String())
sanitizedURL := strings.ReplaceAll(proxyRequest.URL.String(), "\n", "")
sanitizedURL = strings.ReplaceAll(sanitizedURL, "\r", "")
DebugLogger.Printf("Sending proxied request to %s", sanitizedURL)
proxyStartTime := time.Now()
Copilot is powered by AI and may make mistakes. Always verify output.
log.Print("Failed to write response body: ", err.Error())
_, _ = fmt.Fprintln(response, ErrorBodyProxyRequestFailed)
atomic.AddUint64(&totalErrors, 1)
ErrorLogger.Printf("Failed to execute proxied request to %s: %v", proxyRequest.URL.String(), err)

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the user input before logging it. Specifically, we should remove any newline characters from the URL to prevent log forgery. We can use the strings.ReplaceAll function to achieve this. This change should be made in the libproxy/proxy.go file where the logging occurs.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -606,3 +606,5 @@
 		atomic.AddUint64(&totalErrors, 1)
-		ErrorLogger.Printf("Failed to execute proxied request to %s: %v", proxyRequest.URL.String(), err)
+		sanitizedURL := strings.ReplaceAll(proxyRequest.URL.String(), "\n", "")
+		sanitizedURL = strings.ReplaceAll(sanitizedURL, "\r", "")
+		ErrorLogger.Printf("Failed to execute proxied request to %s: %v", sanitizedURL, err)
 		_, writeErr := fmt.Fprintln(response, "{\"success\": false, \"data\":{\"message\":\"(Proxy Error) Request failed: "+err.Error()+"\"}}")
EOF
@@ -606,3 +606,5 @@
atomic.AddUint64(&totalErrors, 1)
ErrorLogger.Printf("Failed to execute proxied request to %s: %v", proxyRequest.URL.String(), err)
sanitizedURL := strings.ReplaceAll(proxyRequest.URL.String(), "\n", "")
sanitizedURL = strings.ReplaceAll(sanitizedURL, "\r", "")
ErrorLogger.Printf("Failed to execute proxied request to %s: %v", sanitizedURL, err)
_, writeErr := fmt.Fprintln(response, "{\"success\": false, \"data\":{\"message\":\"(Proxy Error) Request failed: "+err.Error()+"\"}}")
Copilot is powered by AI and may make mistakes. Always verify output.
}(proxyResponse.Body)

InfoLogger.Printf("Received response from %s with status %d in %v",
proxyRequest.URL.String(),

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the user input before logging it. Specifically, we should ensure that any user-provided URL is properly escaped to prevent log forgery or injection. We can use the strings.ReplaceAll function to remove any newline characters from the URL before logging it.

  1. Identify the lines where user input is logged.
  2. Sanitize the user input by removing newline characters.
  3. Replace the original log statements with the sanitized input.
Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -622,4 +622,6 @@
 
+	sanitizedURL := strings.ReplaceAll(proxyRequest.URL.String(), "\n", "")
+	sanitizedURL = strings.ReplaceAll(sanitizedURL, "\r", "")
 	InfoLogger.Printf("Received response from %s with status %d in %v",
-		proxyRequest.URL.String(),
+		sanitizedURL,
 		proxyResponse.StatusCode,
EOF
@@ -622,4 +622,6 @@

sanitizedURL := strings.ReplaceAll(proxyRequest.URL.String(), "\n", "")
sanitizedURL = strings.ReplaceAll(sanitizedURL, "\r", "")
InfoLogger.Printf("Received response from %s with status %d in %v",
proxyRequest.URL.String(),
sanitizedURL,
proxyResponse.StatusCode,
Copilot is powered by AI and may make mistakes. Always verify output.

// Log completion
InfoLogger.Printf("Completed %s request from %s to %s in %v",
requestData.Method,

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the user input before logging it. Specifically, we should remove any newline characters from the requestData.Method, clientIP, and requestData.Url to prevent log injection attacks. This can be done using the strings.ReplaceAll function to replace newline characters with an empty string.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -681,6 +681,14 @@
 	// Log completion
+	// Sanitize user input before logging
+	sanitizedMethod := strings.ReplaceAll(requestData.Method, "\n", "")
+	sanitizedMethod = strings.ReplaceAll(sanitizedMethod, "\r", "")
+	sanitizedClientIP := strings.ReplaceAll(clientIP, "\n", "")
+	sanitizedClientIP = strings.ReplaceAll(sanitizedClientIP, "\r", "")
+	sanitizedUrl := strings.ReplaceAll(requestData.Url, "\n", "")
+	sanitizedUrl = strings.ReplaceAll(sanitizedUrl, "\r", "")
+
 	InfoLogger.Printf("Completed %s request from %s to %s in %v",
-		requestData.Method,
-		clientIP,
-		requestData.Url,
+		sanitizedMethod,
+		sanitizedClientIP,
+		sanitizedUrl,
 		time.Since(startTime))
EOF
@@ -681,6 +681,14 @@
// Log completion
// Sanitize user input before logging
sanitizedMethod := strings.ReplaceAll(requestData.Method, "\n", "")
sanitizedMethod = strings.ReplaceAll(sanitizedMethod, "\r", "")
sanitizedClientIP := strings.ReplaceAll(clientIP, "\n", "")
sanitizedClientIP = strings.ReplaceAll(sanitizedClientIP, "\r", "")
sanitizedUrl := strings.ReplaceAll(requestData.Url, "\n", "")
sanitizedUrl = strings.ReplaceAll(sanitizedUrl, "\r", "")

InfoLogger.Printf("Completed %s request from %s to %s in %v",
requestData.Method,
clientIP,
requestData.Url,
sanitizedMethod,
sanitizedClientIP,
sanitizedUrl,
time.Since(startTime))
Copilot is powered by AI and may make mistakes. Always verify output.
InfoLogger.Printf("Completed %s request from %s to %s in %v",
requestData.Method,
clientIP,
requestData.Url,

Check failure

Code scanning / CodeQL

Log entries created from user input High

This log entry depends on a
user-provided value
.
This log entry depends on a
user-provided value
.

Copilot Autofix

AI 6 months ago

To fix the problem, we need to sanitize the requestData.Url before logging it. This can be done by removing any newline characters from the URL to prevent log injection attacks. We will use the strings.ReplaceAll function to replace newline characters with an empty string.

Suggested changeset 1
libproxy/proxy.go

Autofix patch

Autofix patch
Run the following command in your local git repository to apply this patch
cat << 'EOF' | git apply
diff --git a/libproxy/proxy.go b/libproxy/proxy.go
--- a/libproxy/proxy.go
+++ b/libproxy/proxy.go
@@ -681,2 +681,5 @@
 	// Log completion
+	// Sanitize requestData.Url to prevent log injection
+	sanitizedUrl := strings.ReplaceAll(requestData.Url, "\n", "")
+	sanitizedUrl = strings.ReplaceAll(sanitizedUrl, "\r", "")
 	InfoLogger.Printf("Completed %s request from %s to %s in %v",
@@ -684,3 +687,3 @@
 		clientIP,
-		requestData.Url,
+		sanitizedUrl,
 		time.Since(startTime))
EOF
@@ -681,2 +681,5 @@
// Log completion
// Sanitize requestData.Url to prevent log injection
sanitizedUrl := strings.ReplaceAll(requestData.Url, "\n", "")
sanitizedUrl = strings.ReplaceAll(sanitizedUrl, "\r", "")
InfoLogger.Printf("Completed %s request from %s to %s in %v",
@@ -684,3 +687,3 @@
clientIP,
requestData.Url,
sanitizedUrl,
time.Since(startTime))
Copilot is powered by AI and may make mistakes. Always verify output.
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