Add username prefix requirement for plugin filenames

.gitea/scripts/validate-pr.js

@@ -154,6 +154,12 @@ for (const file of changedFiles) {
   
   const pluginId = file.replace('plugins/', '').replace('.json', '');
   
+  // Filename must be prefixed with username
+  if (!pluginId.startsWith(`${prAuthor}-`)) {
+    errors.push(`❌ ${file}: Filename must start with your username "${prAuthor}-" (e.g., "${prAuthor}-my-plugin.json")`);
+    continue;
+  }
+  
   // Check if file was added or removed
   let isAdded = false;
   let isRemoved = false;

SECURITY.md

@@ -0,0 +1,137 @@
+# Security Model
+
+## Authentication vs Git Configuration
+
+### How User Identity Works
+
+**Question:** Can't I just set my git username to anything and bypass validation?
+
+**Answer:** No. The validation uses **Gitea account authentication**, not git commit authors.
+
+#### Git Commit Author (NOT used for validation)
+```bash
+# This can be set to anything locally
+git config user.name "anyone"
+git config user.email "anyone@example.com"
+git commit -m "My commit"
+```
+These values are **NOT** used for plugin ownership validation.
+
+#### PR Creator (used for validation)
+When you create a Pull Request:
+1. You must be logged into your Gitea account
+2. The PR is created through Gitea's authenticated API
+3. `github.event.pull_request.user.login` = your authenticated Gitea username
+
+**This is what validation checks against.**
+
+### Example Attack Scenario (Prevented)
+
+❌ **Attacker tries:**
+```bash
+# Configure git to impersonate someone
+git config user.name "victim"
+git config user.email "victim@example.com"
+
+# Modify victim's plugin
+vim plugins/victim-plugin.json
+# Change author to "attacker"
+
+git commit -m "Update plugin"
+git push
+
+# Create PR (must log into Gitea as "attacker" account)
+```
+
+✅ **What happens:**
+1. PR is created by authenticated Gitea user: `attacker`
+2. Validation script receives: `prAuthor = "attacker"`
+3. Validation checks original plugin from main branch: `original.author = "victim"`
+4. Check fails: `"victim" !== "attacker"`
+5. **Result:** ❌ `Cannot modify plugin owned by "victim" (you are "attacker")`
+
+The git commit author is irrelevant - what matters is **who is logged into Gitea when creating the PR**.
+
+## Security Measures
+
+### 1. Dual Checkout
+```yaml
+- Checkout main branch → base/ (trusted validation scripts)
+- Checkout PR branch → pr/ (untrusted user submissions)
+```
+Validation script always runs from `base/`, never from PR branch.
+
+### 2. Infrastructure Protection
+PRs that modify `.gitea/` directory are automatically rejected.
+
+### 3. Ownership Verification
+All modifications/deletions check **original ownership from main branch**:
+```javascript
+// Check original plugin from main (base/)
+const originalPlugin = readFile('../base/plugins/example.json');
+
+// User can only modify if they own the original
+if (originalPlugin.author !== prAuthor) {
+  reject("Cannot modify plugin owned by someone else");
+}
+```
+
+### 4. Author Field Validation
+New plugins must have `author` field matching the PR creator's authenticated Gitea username.
+
+## What About Collaboration?
+
+**Q:** What if I want someone else to update my plugin?
+
+**A:** They cannot submit PRs directly. Options:
+1. Transfer ownership by updating the `author` field yourself
+2. They fork your plugin repo and create their own plugin entry
+3. Add them as collaborators to your plugin repository (not the directory)
+
+## Trust Model
+
+### Trusted Components
+- Main branch content (validated history)
+- Gitea authentication system
+- GitHub Actions runner environment
+- Validation scripts on main branch
+
+### Untrusted Components
+- PR branch content (user submissions)
+- Git commit metadata (names, emails)
+- PR descriptions and comments
+
+### Validation Flow
+```
+1. User authenticates to Gitea → Trusted user identity
+2. User creates PR → github.event.pull_request.user.login
+3. Validation runs from main branch scripts → Trusted code
+4. Checks plugin ownership against main → Trusted ownership data
+5. Validates PR author matches plugin author → Secure check
+```
+
+## Reporting Security Issues
+
+If you find a security vulnerability in the plugin directory system:
+1. **Do NOT create a public issue or PR**
+2. Contact the repository maintainer directly
+3. Provide detailed reproduction steps
+4. Allow time for a fix before public disclosure
+
+## Additional Safeguards
+
+### Rate Limiting
+Gitea's built-in rate limiting prevents spam PR attacks.
+
+### Branch Protection
+The `main` branch is protected:
+- Direct pushes disabled
+- All changes via PR
+- Auto-merge only after validation passes
+
+### Audit Trail
+All changes are tracked in git history:
+- Who created the PR (Gitea account)
+- What changed (git diff)
+- When it was merged (git commit timestamp)
+- Why validation passed (CI logs)

VALIDATION_RULES.md

@@ -14,7 +14,16 @@ All plugin submissions are automatically validated before being merged. PRs must
 - ❌ Cannot modify `.gitea/` infrastructure files
 - ⚠️ `plugins/index.json` is auto-generated - don't manually edit it
 
-### 2. File Type
+### 2. File Naming
+- **Filename must be prefixed with your username**
+- Format: `username-plugin-name.json`
+- Example: `litruv-example-plugin.json`
+- ❌ Invalid: `example-plugin.json` (missing username prefix)
+- ❌ Invalid: `otheruser-plugin.json` (wrong username)
+
+This prevents naming conflicts and makes ownership visible.
+
+### 3. File Type
 - ✅ Only `.json` files are allowed in `plugins/` directory
 - ❌ No other file types (images, scripts, etc. must be in plugin repo)
 
@@ -38,7 +47,8 @@ Every plugin JSON must have these fields:
 
 #### `id` (required)
 - Must match the filename
-- Example: `example-plugin.json` → `"id": "example-plugin"`
+- Example: `litruv-example-plugin.json` → `"id": "litruv-example-plugin"`
+- Must include username prefix matching filename
 - Lowercase, hyphens allowed, no spaces
 
 #### `name` (required)
@@ -134,9 +144,15 @@ node .gitea/scripts/validate-pr.js "your-username" "plugins/your-plugin.json"
 **Fix**: Change `"author": "someone"` to `"author": "you"`
 
 ### ❌ ID doesn't match filename
+```litruv-my-plugin.json: Plugin ID "different-name" doesn't match filename "litruv-my-plugin.json"
 ```
-❌ plugins/my-plugin.json: Plugin ID "different-name" doesn't match filename "my-plugin.json"
+**Fix**: Change `"id": "different-name"` to `"id": "litruv-my-plugin"`
+
+### ❌ Filename missing username prefix
 ```
+❌ plugins/my-plugin.json: Filename must start with your username "litruv-" (e.g., "litruv-my-plugin.json")
+```
+**Fix**: Rename file from `my-plugin.json` to `litruv-my-plugin.json` and update the `id` field
 **Fix**: Change `"id": "different-name"` to `"id": "my-plugin"`
 
 ### ❌ Invalid version
@@ -155,13 +171,7 @@ node .gitea/scripts/validate-pr.js "your-username" "plugins/your-plugin.json"
 ```
 ❌ plugins/example-plugin.json: Thumbnail validation failed: Thumbnail dimensions 1024x768 exceed 512x512
 ```
-**Fix**: Resize your thumbnail to 512×512 or smaller
-
-## Example Valid Plugin JSON
-
-```json
-{
-  "id": "example-plugin",
+**Fix**: litruv-example-plugin",
   "name": "Example Plugin",
   "version": "1.0.0",
   "description": "An example plugin demonstrating the plugin system capabilities",
@@ -173,6 +183,14 @@ node .gitea/scripts/validate-pr.js "your-username" "plugins/your-plugin.json"
 }
 ```
 
+Filename: `litruv-example-plugin.json"author": "litruv",
+  "repository": "http://synbox.ruv.wtf:8418/litruv/Plugin-Example.git",
+  "thumbnail": "http://synbox.ruv.wtf:8418/litruv/Plugin-Example/raw/branch/main/thumbnail.png",
+  "homepage": "http://synbox.ruv.wtf:8418/litruv/Plugin-Example",
+  "tags": ["example", "demo"]
+}
+```
+
 ## Security Note
 
 **Never include sensitive information in plugin JSON files.** These files are public and will be served to all plugin host users. Do not include: