Long-term Maintenance and Evolution

CSP requires ongoing maintenance to remain effective as applications evolve:
// CSP Lifecycle Management
class CSPLifecycleManager {
  constructor() {
    this.version = '1.0.0';
    this.history = [];
    this.schedule = this.createMaintenanceSchedule();
  }
  
  createMaintenanceSchedule() {
    return {
      daily: [
        {
          task: 'Review violation reports',
          automation: 'Automated summary generation',
          owner: 'Security team'
        },
        {
          task: 'Check for attack patterns',
          automation: 'Pattern matching alerts',
          owner: 'SOC team'
        }
      ],
      
      weekly: [
        {
          task: 'Analyze new violation sources',
          process: this.weeklyViolationAnalysis(),
          owner: 'Development team'
        },
        {
          task: 'Performance impact review',
          process: this.performanceReview(),
          owner: 'Operations team'
        }
      ],
      
      monthly: [
        {
          task: 'Policy optimization',
          process: this.monthlyOptimization(),
          owner: 'Security architect'
        },
        {
          task: 'Third-party service audit',
          process: this.thirdPartyAudit(),
          owner: 'Vendor management'
        }
      ],
      
      quarterly: [
        {
          task: 'Comprehensive security review',
          process: this.quarterlySecurityReview(),
          owner: 'CISO'
        },
        {
          task: 'Policy evolution planning',
          process: this.evolutionPlanning(),
          owner: 'Technical leadership'
        }
      ]
    };
  }
  
  weeklyViolationAnalysis() {
    return `
      function analyzeWeeklyViolations(violations) {
        const analysis = {
          newSources: identifyNewSources(violations),
          trends: calculateTrends(violations),
          recommendations: []
        };
        
        // Classify new sources
        analysis.newSources.forEach(source => {
          const classification = classifySource(source);
          
          if (classification.legitimate) {
            analysis.recommendations.push({
              action: 'add_to_policy',
              source: source,
              justification: classification.reason
            });
          } else if (classification.suspicious) {
            analysis.recommendations.push({
              action: 'investigate',
              source: source,
              priority: classification.riskLevel
            });
          }
        });
        
        return analysis;
      }
    `;
  }
  
  evolutionPlanning() {
    return {
      assessCurrentState: () => {
        return {
          policyMaturity: this.assessMaturity(),
          coverageGaps: this.identifyCoverageGaps(),
          industryComparison: this.benchmarkAgainstPeers()
        };
      },
      
      planImprovements: () => {
        return {
          shortTerm: [
            'Migrate from unsafe-inline to nonces',
            'Implement strict-dynamic for modern browsers',
            'Enhance monitoring capabilities'
          ],
          mediumTerm: [
            'Automate policy generation',
            'Integrate with CI/CD pipeline',
            'Implement machine learning for anomaly detection'
          ],
          longTerm: [
            'Zero-trust CSP architecture',
            'Automated threat response',
            'Predictive security modeling'
          ]
        };
      }
    };
  }
}