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Merge of Version1 & Version2
1 {{toc numerate=1}}
2
3 === Overview ===
4
5 The ##Http## class (##src/class/http.php##) is a core component of the WackoWiki system responsible for handling HTTP request/response processing, session management, caching, and security features. This class acts as a bridge between the web server and the wiki engine.
… …
40 ----
41 === Constructor ===
42
43 %%php(hl php)
44 public function __construct(&$db)
45 %%
46
… …
58   6. Enforces TLS session upgrade if needed
59
60 **Example:**
61 %%php(hl php)
62 $http = new Http($db);
63 %%
64
… …
82   - Recovers diagnostic logs from previous session
83
84 **Example:**
85 %%php(hl php)
86 $http->session(0); // Normal session
87 $http->session(2); // Static file serving mode
88 %%
… …
105   - ✅ Only cached for anonymous users (no logged-in users)
106
107 **Example:**
108 %%php(hl php)
109 $http->check_cache('HomePage', 'show');
110 %%
111
… …
144   4. Returns count of invalidated caches
145
146 **Example:**
147 %%php(hl php)
148 $count = $http->invalidate_page('HomePage');
149 echo "Invalidated $count cache entries";
150 %%
… …
162   - Called when TLS session is detected
163
164 **Example:**
165 %%php(hl php)
166 $http->secure_base_url();
167 // $db->base_url now uses https://
168 %%
… …
181   - Converts relative URLs using current server name
182
183 **Example:**
184 %%php(hl php)
185 $http->ensure_tls('/secure/payment');
186 %%
187
… …
209   - ##reverse_proxy_header## - Custom header name (default: ##X-Forwarded-For##)
210
211 **Example:**
212 %%php(hl php)
213 $client_ip = $http->ip; // e.g., "203.0.113.42"
214 %%
215
… …
253   - ##2## - Custom policy (from ##csp_custom.conf##)
254
255 **Example:**
256 %%php(hl php)
257 $http->http_security_headers();
258 %%
259
… …
273   - Uses output buffering to work anywhere in page processing
274
275 **Example:**
276 %%php(hl php)
277 $http->redirect('http://example.com/new-page', true); // 301
278 $http->redirect('/wiki/HomePage'); // 302
279 %%
… …
288   - Ends script execution
289
290 **Example:**
291 %%php(hl php)
292 $http->terminate();
293 %%
294
… …
298 Sets HTTP response status code.
299
300 **Supported Status Codes:**
301 %%php(hl php)
302 200 => 'OK'
303 206 => 'Partial Content'
304 301 => 'Moved Permanently'
… …
318 %%
319
320 **Example:**
321 %%php(hl php)
322 $http->status(404); // Send 404 Not Found
323 %%
324
… …
339   - ##Cache-Control: no-store##
340
341 **Example:**
342 %%php(hl php)
343 $http->no_cache(); // Client-side only
344 $http->no_cache(false); // Both client & server
345 %%
… …
353   - ##Cache-Control: public##
354
355 **Example:**
356 %%php(hl php)
357 $http->cache_promisc();
358 %%
359
… …
398   - Associative array: ##['en' => 'en', 'de' => 'de', ...]##
399
400 **Example:**
401 %%php(hl php)
402 $all_langs = $http->available_languages(false);
403 $allowed = $http->available_languages(true);
404 %%
… …
424   - GZip compression for text files
425
426 **Special Paths:**
427 %%php(hl php)
428 $http->sendfile(404); // Serves file defined by HTTP_404 constant
429 $http->sendfile(403); // Serves file defined by HTTP_403 constant
430 %%
431
432 **Example:**
433 %%php(hl php)
434 $http->sendfile('uploads/document.pdf', 'my-document.pdf', 30);
435 %%
436
… …
444   - Default: ##'application/octet-stream'##
445
446 **Example:**
447 %%php(hl php)
448 $mime = $http->mime_type('file.pdf'); // 'application/pdf'
449 %%
450
… …
474   - Headers not already sent
475
476 **Example:**
477 %%php(hl php)
478 $http->gzip();
479 %%
480
… …
490   - Converts encoding properly
491
492 **Example:**
493 %%php(hl php)
494 $data = $http->parse_str('name=John&age=30');
495 %%
496
… …
596
597 ==== Example 2: Handling TLS/HTTPS Upgrade ====
598
599 %%php(hl php)
600 $http = new Http($db); // Constructor detects TLS requirement
601 // If TLS is enabled and user wasn't in TLS before:
602 // - Sets TLS session flag
… …
606
607 ==== Example 3: Invalidating Cache After Page Edit ====
608
609 %%php(hl php)
610 // User edits a page
611 $http = new Http($db);
612 $count = $http->invalidate_page('HomePage');
… …
615
616 ==== Example 4: Serving a File ====
617
618 %%php(hl php)
619 $http = new Http($db);
620 $http->session(2); // Static file mode - no session replay prevention
621
… …
690
691 The class integrates with WackoWiki's diagnostic system:
692
693 %%php(hl php)
694 // Diagnostic messages are preserved across redirects
695 // via session flash data
696