mirror of
https://github.com/lukaszraczylo/traefikoidc.git
synced 2026-06-05 22:44:17 +00:00
Complete rebuild of the plugin
* Fix bug affecting Azure OIDC authentication ( and most likely others ) * Fixes issue #51 * Ensure that appended roles are unique. Update the documentation. * Improvements targetting possible memory usage spikes. * Additional fixes and cleanup * Refactoring code to fix the issues identified by the users. * Modernize run * Fieldalignment * Multiple changes to improve performance and reduce complexity. - Optimise the errors and recovery. - Deduplicate code in metadata cache. - Remove unused performance monitoring code. - Simplify session management and settings handling. * Fix claims issue. * Add ability to overwrite the default scopes in the settings file * Well.. that escalated quickly. Completely forgot that Traefik uses outdated Yaegi and requires compatibility with 1.20 ( pre-generic Go code ). * Bugfix #51: Ensures that user provided scopes overrides work. * fixup! Bugfix #51: Ensures that user provided scopes overrides work. * fixup! fixup! Bugfix #51: Ensures that user provided scopes overrides work. * Abstract the provider logic into a separate package. * Additional micro fixes and cleanups. * Simplify all the things. * fixup! Simplify all the things. * fixup! fixup! Simplify all the things. * fixup! fixup! fixup! Simplify all the things. * fixup! fixup! fixup! fixup! Simplify all the things. * ... * Cleanup tests. * fixup! Cleanup tests. * fixup! fixup! fixup! Cleanup tests. * fixup! fixup! fixup! fixup! Cleanup tests. * fixup! fixup! fixup! fixup! fixup! Cleanup tests. * Issue #53: Fix CSRF token handling in reverse proxy 1. ✅ HTTPS Detection Fixed (session.go:723) - Now uses X-Forwarded-Proto header instead of r.URL.Scheme - Properly detects HTTPS in reverse proxy environments 2. ✅ SameSite Cookie Attribute Fixed - Removed automatic SameSiteStrictMode for HTTPS (would break OAuth) - Keeps SameSiteLaxMode to allow OAuth callbacks from external domains - Only uses Strict for AJAX requests which don't involve OAuth redirects 3. ✅ Cookie Domain Handling Fixed - Now respects X-Forwarded-Host header for cookie domain - Ensures cookies are set for the public domain, not internal proxy domain 4. ✅ EnhanceSessionSecurity Properly Integrated - Function is now actually called during session save - Applies security enhancements without breaking OAuth flow Why Issue #53 Failed Before: 1. Cookies were not marked Secure in HTTPS environments (browser wouldn't send them back) 2. If they had been Secure with SameSite=Strict, Azure callbacks would still fail 3. Cookie domain might have been wrong (internal vs public domain) Why It Works Now: 1. Cookies are properly marked Secure for HTTPS 2. Uses SameSite=Lax to allow OAuth provider callbacks 3. Cookie domain uses public domain from X-Forwarded-Host 4. CSRF token persists through the entire OAuth flow * Next set of enhancements together with memory usage improvements. * Memory leak fixes and optimisations. * CSRF and Cookie Domain fixes * fixup! CSRF and Cookie Domain fixes * Metadata cache leak fix + profiling * fixup! Metadata cache leak fix + profiling * Memory leaks hunting, part 1337. * Further pursue of perfection. * fixup! Further pursue of perfection. * fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! fixup! fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! fixup! fixup! fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! Further pursue of perfection. * fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! fixup! Further pursue of perfection. * Clear race conditions * fixup! Clear race conditions * Weekend fun with memory leaks * Splitting code into multiple files with reasonable testing coverage. ``` ok github.com/lukaszraczylo/traefikoidc 117.017s coverage: 72.6% of statements ok github.com/lukaszraczylo/traefikoidc/auth 0.505s coverage: 87.1% of statements ok github.com/lukaszraczylo/traefikoidc/circuit_breaker 0.283s coverage: 99.0% of statements github.com/lukaszraczylo/traefikoidc/config coverage: 0.0% of statements ok github.com/lukaszraczylo/traefikoidc/handlers 0.349s coverage: 98.2% of statements ok github.com/lukaszraczylo/traefikoidc/internal/providers (cached) coverage: 94.3% of statements ok github.com/lukaszraczylo/traefikoidc/middleware 0.808s coverage: 78.0% of statements ok github.com/lukaszraczylo/traefikoidc/recovery 0.653s coverage: 100.0% of statements ok github.com/lukaszraczylo/traefikoidc/session/chunking (cached) coverage: 87.8% of statements ok github.com/lukaszraczylo/traefikoidc/session/core (cached) coverage: 85.6% of statements ok github.com/lukaszraczylo/traefikoidc/session/crypto (cached) coverage: 81.8% of statements ok github.com/lukaszraczylo/traefikoidc/session/storage (cached) coverage: 93.5% of statements ok github.com/lukaszraczylo/traefikoidc/session/validators (cached) coverage: 98.8% of statements ```` * fixup! Splitting code into multiple files with reasonable testing coverage. * fixup! fixup! Splitting code into multiple files with reasonable testing coverage. * Weekend fun with further optimisations. * fixup! Weekend fun with further optimisations. * fixup! fixup! Weekend fun with further optimisations. * fixup! fixup! fixup! Weekend fun with further optimisations. * fixup! fixup! fixup! fixup! Weekend fun with further optimisations. * fixup! fixup! fixup! fixup! fixup! Weekend fun with further optimisations. * Pre-release cleanup. * Enhance test coverage. * fixup! Enhance test coverage. * fixup! fixup! Enhance test coverage. * fixup! fixup! fixup! Enhance test coverage.
This commit is contained in:
GitHub
+106
-28
@@ -4,45 +4,47 @@ import (
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"fmt"
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"net/url"
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"regexp"
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"strconv"
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"strings"
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"unicode"
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"unicode/utf8"
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)
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// InputValidator provides comprehensive input validation and sanitization
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// to protect against common security vulnerabilities including SQL injection,
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// XSS, path traversal, and other injection attacks. It validates and sanitizes
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// various input types used in OIDC authentication flows.
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type InputValidator struct {
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// Configuration
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maxTokenLength int
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maxURLLength int
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maxHeaderLength int
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maxClaimLength int
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maxEmailLength int
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maxUsernameLength int
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// Compiled regex patterns
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emailRegex *regexp.Regexp
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urlRegex *regexp.Regexp
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tokenRegex *regexp.Regexp
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usernameRegex *regexp.Regexp
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// Security patterns to detect
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usernameRegex *regexp.Regexp
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tokenRegex *regexp.Regexp
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logger *Logger
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urlRegex *regexp.Regexp
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emailRegex *regexp.Regexp
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sqlInjectionPatterns []string
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xssPatterns []string
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pathTraversalPatterns []string
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logger *Logger
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xssPatterns []string
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maxUsernameLength int
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maxURLLength int
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maxTokenLength int
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maxEmailLength int
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maxClaimLength int
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maxHeaderLength int
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}
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// ValidationResult represents the result of input validation
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// ValidationResult encapsulates the outcome of input validation.
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// It includes the sanitized value, detected security risks, validation
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// errors and warnings, and an overall validity status.
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type ValidationResult struct {
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IsValid bool `json:"is_valid"`
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Errors []string `json:"errors,omitempty"`
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Warnings []string `json:"warnings,omitempty"`
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SanitizedValue string `json:"sanitized_value,omitempty"`
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SecurityRisk string `json:"security_risk,omitempty"`
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Errors []string `json:"errors,omitempty"`
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Warnings []string `json:"warnings,omitempty"`
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IsValid bool `json:"is_valid"`
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}
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// InputValidationConfig holds configuration for input validation
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// InputValidationConfig defines the configuration parameters for input validation.
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// It specifies maximum lengths for various input types and controls whether
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// strict validation mode is enabled.
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type InputValidationConfig struct {
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MaxTokenLength int `json:"max_token_length"`
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MaxURLLength int `json:"max_url_length"`
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@@ -53,7 +55,9 @@ type InputValidationConfig struct {
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StrictMode bool `json:"strict_mode"`
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}
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// DefaultInputValidationConfig returns default validation configuration
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// DefaultInputValidationConfig returns a secure default configuration
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// for input validation with reasonable limits based on industry standards
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// and security best practices.
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func DefaultInputValidationConfig() InputValidationConfig {
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return InputValidationConfig{
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MaxTokenLength: 50000, // 50KB for tokens
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@@ -66,7 +70,16 @@ func DefaultInputValidationConfig() InputValidationConfig {
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}
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}
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// NewInputValidator creates a new input validator with the given configuration
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// NewInputValidator creates a new input validator with the specified configuration.
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// It compiles all necessary regex patterns and initializes security pattern lists.
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//
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// Parameters:
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// - config: Validation configuration with size limits and mode settings.
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// - logger: Logger instance for recording validation events.
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//
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// Returns:
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// - A configured InputValidator instance.
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// - An error if regex compilation fails.
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func NewInputValidator(config InputValidationConfig, logger *Logger) (*InputValidator, error) {
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// Compile regex patterns
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emailRegex, err := regexp.Compile(`^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`)
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@@ -307,6 +320,42 @@ func (iv *InputValidator) ValidateURL(urlStr string) ValidationResult {
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return result
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}
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// Check for localhost or private IPs for security
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// Allow localhost for HTTPS (development/testing) but warn about it
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hostname := strings.ToLower(parsedURL.Hostname())
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if hostname == "localhost" || hostname == "127.0.0.1" || hostname == "::1" {
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if parsedURL.Scheme == "https" {
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// Allow HTTPS localhost for development but warn
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result.Warnings = append(result.Warnings, "localhost URLs should only be used for development/testing")
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} else {
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// Reject non-HTTPS localhost for security
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result.IsValid = false
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result.Errors = append(result.Errors, "non-HTTPS localhost URLs are not allowed for security")
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return result
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}
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}
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// Check for private IP ranges (RFC 1918)
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if strings.HasPrefix(hostname, "10.") ||
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strings.HasPrefix(hostname, "192.168.") ||
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strings.HasPrefix(hostname, "172.") {
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// For 172.x check if it's in the 172.16.0.0/12 range
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if strings.HasPrefix(hostname, "172.") {
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parts := strings.Split(hostname, ".")
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if len(parts) >= 2 {
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if second, err := strconv.Atoi(parts[1]); err == nil && second >= 16 && second <= 31 {
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result.IsValid = false
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result.Errors = append(result.Errors, "private IP URLs are not allowed for security")
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return result
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}
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}
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} else {
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result.IsValid = false
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result.Errors = append(result.Errors, "private IP URLs are not allowed for security")
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return result
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}
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}
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// Check for suspicious patterns
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if risk := iv.detectSecurityRisk(sanitized); risk != "" {
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result.SecurityRisk = risk
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@@ -395,7 +444,9 @@ func (iv *InputValidator) ValidateClaim(claimName, claimValue string) Validation
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}
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if iv.containsControlCharacters(claimValue) {
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result.Warnings = append(result.Warnings, "claim value contains control characters")
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result.IsValid = false
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result.Errors = append(result.Errors, "claim value contains control characters")
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return result
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}
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// Validate UTF-8 encoding
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@@ -408,7 +459,25 @@ func (iv *InputValidator) ValidateClaim(claimName, claimValue string) Validation
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// Check for suspicious patterns
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if risk := iv.detectSecurityRisk(claimValue); risk != "" {
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result.SecurityRisk = risk
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result.Warnings = append(result.Warnings, fmt.Sprintf("potential security risk detected: %s", risk))
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result.IsValid = false
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result.Errors = append(result.Errors, fmt.Sprintf("potential security risk detected: %s", risk))
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return result
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}
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// Check for excessive unicode (emojis and special characters)
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unicodeCount := 0
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runeCount := 0
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for _, r := range claimValue {
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runeCount++
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if r > 127 { // Non-ASCII character
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unicodeCount++
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}
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}
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// If more than 50% of the characters are unicode, consider it suspicious
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if runeCount > 0 && unicodeCount > runeCount/2 {
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result.IsValid = false
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result.Errors = append(result.Errors, "claim value contains excessive unicode characters")
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return result
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}
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// Specific validations based on claim name
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@@ -493,6 +562,13 @@ func (iv *InputValidator) ValidateHeader(headerName, headerValue string) Validat
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return result
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}
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// Check for control characters in header value
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if iv.containsControlCharacters(headerValue) {
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result.IsValid = false
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result.Errors = append(result.Errors, "header value contains control characters")
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return result
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}
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// Validate UTF-8 encoding
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if !utf8.ValidString(headerValue) {
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result.IsValid = false
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@@ -503,7 +579,9 @@ func (iv *InputValidator) ValidateHeader(headerName, headerValue string) Validat
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// Check for suspicious patterns
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if risk := iv.detectSecurityRisk(headerValue); risk != "" {
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result.SecurityRisk = risk
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result.Warnings = append(result.Warnings, fmt.Sprintf("potential security risk detected: %s", risk))
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result.IsValid = false
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result.Errors = append(result.Errors, fmt.Sprintf("potential security risk detected: %s", risk))
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return result
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}
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result.SanitizedValue = strings.TrimSpace(headerValue)
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