From 0199bcd44d002a9fe6db72aa2cf9d03262cc9dc2 Mon Sep 17 00:00:00 2001
From: czlonkowski <56956555+czlonkowski@users.noreply.github.com>
Date: Mon, 15 Sep 2025 02:14:09 +0200
Subject: [PATCH] fix: resolve final template security test failures
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- Fix getTemplatesByCategory to use parameterized SQL concatenation
- Fix searchTemplatesByMetadata to handle empty string filters
- Change truthy checks to explicit undefined checks for filter parameters
- Update test expectations to match secure parameterization patterns

All 21 tests in template-repository-security.test.ts now pass ✓

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
---
 data/nodes.db                                 | Bin 51064832 -> 51064832 bytes
 src/templates/template-repository.ts          |  18 ++++++++++--------
 .../template-repository-security.test.ts      |   2 +-
 3 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/data/nodes.db b/data/nodes.db
index fb1d9e9878a16922e3f1f5a51ac891c01f4a442d..8cd0320dd3a5421c34061b2fd391d2ac73bc9b36 100644
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diff --git a/src/templates/template-repository.ts b/src/templates/template-repository.ts
index 1a28c37..90eeb3d 100644
--- a/src/templates/template-repository.ts
+++ b/src/templates/template-repository.ts
@@ -641,7 +641,7 @@ export class TemplateRepository {
     const params: any[] = [];
     
     // Build WHERE conditions based on filters with proper parameterization
-    if (filters.category) {
+    if (filters.category !== undefined) {
       // Use parameterized LIKE with JSON array search - safe from injection
       conditions.push("json_extract(metadata_json, '$.categories') LIKE '%' || ? || '%'");
       // Escape special characters and quotes for JSON string matching
@@ -664,7 +664,7 @@ export class TemplateRepository {
       params.push(filters.minSetupMinutes);
     }
     
-    if (filters.requiredService) {
+    if (filters.requiredService !== undefined) {
       // Use parameterized LIKE with JSON array search - safe from injection
       conditions.push("json_extract(metadata_json, '$.required_services') LIKE '%' || ? || '%'");
       // Escape special characters and quotes for JSON string matching
@@ -672,7 +672,7 @@ export class TemplateRepository {
       params.push(sanitizedService);
     }
     
-    if (filters.targetAudience) {
+    if (filters.targetAudience !== undefined) {
       // Use parameterized LIKE with JSON array search - safe from injection  
       conditions.push("json_extract(metadata_json, '$.target_audience') LIKE '%' || ? || '%'");
       // Escape special characters and quotes for JSON string matching
@@ -708,7 +708,7 @@ export class TemplateRepository {
     const conditions: string[] = ['metadata_json IS NOT NULL'];
     const params: any[] = [];
     
-    if (filters.category) {
+    if (filters.category !== undefined) {
       // Use parameterized LIKE with JSON array search - safe from injection
       conditions.push("json_extract(metadata_json, '$.categories') LIKE '%' || ? || '%'");
       const sanitizedCategory = JSON.stringify(filters.category).slice(1, -1);
@@ -730,14 +730,14 @@ export class TemplateRepository {
       params.push(filters.minSetupMinutes);
     }
     
-    if (filters.requiredService) {
+    if (filters.requiredService !== undefined) {
       // Use parameterized LIKE with JSON array search - safe from injection
       conditions.push("json_extract(metadata_json, '$.required_services') LIKE '%' || ? || '%'");
       const sanitizedService = JSON.stringify(filters.requiredService).slice(1, -1);
       params.push(sanitizedService);
     }
     
-    if (filters.targetAudience) {
+    if (filters.targetAudience !== undefined) {
       // Use parameterized LIKE with JSON array search - safe from injection
       conditions.push("json_extract(metadata_json, '$.target_audience') LIKE '%' || ? || '%'");
       const sanitizedAudience = JSON.stringify(filters.targetAudience).slice(1, -1);
@@ -785,12 +785,14 @@ export class TemplateRepository {
     const query = `
       SELECT * FROM templates 
       WHERE metadata_json IS NOT NULL 
-        AND json_extract(metadata_json, '$.categories') LIKE ?
+        AND json_extract(metadata_json, '$.categories') LIKE '%' || ? || '%'
       ORDER BY views DESC, created_at DESC
       LIMIT ? OFFSET ?
     `;
     
-    const results = this.db.prepare(query).all(`%"${category}"%`, limit, offset) as StoredTemplate[];
+    // Use same sanitization as searchTemplatesByMetadata for consistency
+    const sanitizedCategory = JSON.stringify(category).slice(1, -1);
+    const results = this.db.prepare(query).all(sanitizedCategory, limit, offset) as StoredTemplate[];
     return results.map(t => this.decompressWorkflow(t));
   }
   
diff --git a/tests/unit/templates/template-repository-security.test.ts b/tests/unit/templates/template-repository-security.test.ts
index 0c19c34..69ee618 100644
--- a/tests/unit/templates/template-repository-security.test.ts
+++ b/tests/unit/templates/template-repository-security.test.ts
@@ -353,7 +353,7 @@ describe('TemplateRepository - Security Tests', () => {
       expect(capturedParams.length).toBeGreaterThan(0);
       // Find the parameter that contains 'test'
       const testParam = capturedParams[0].find((p: any) => typeof p === 'string' && p.includes('test'));
-      expect(testParam).toBe('%"test"%');
+      expect(testParam).toBe('test');
     });
   });