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1 == HTTP Class Technical Documentation ==    
2    
3 {{toc numerate=1}} 1 {{toc numerate=1}}
    2
4 === Overview === 3 === Overview ===
5 4
6 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. 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.
41 ---- 40 ----
42 === Constructor === 41 === Constructor ===
43 42
44 %%php 43 %%(hl php)
45 public function __construct(&$db) 44 public function __construct(&$db)
46 %% 45 %%
47 46
59   6. Enforces TLS session upgrade if needed 58   6. Enforces TLS session upgrade if needed
60 59
61 **Example:** 60 **Example:**
62 %%php 61 %%(hl php)
63 $http = new Http($db); 62 $http = new Http($db);
64 %% 63 %%
65 64
83   - Recovers diagnostic logs from previous session 82   - Recovers diagnostic logs from previous session
84 83
85 **Example:** 84 **Example:**
86 %%php 85 %%(hl php)
87 $http->session(0); // Normal session 86 $http->session(0); // Normal session
88 $http->session(2); // Static file serving mode 87 $http->session(2); // Static file serving mode
89 %% 88 %%
106   - ✅ Only cached for anonymous users (no logged-in users) 105   - ✅ Only cached for anonymous users (no logged-in users)
107 106
108 **Example:** 107 **Example:**
109 %%php 108 %%(hl php)
110 $http->check_cache('HomePage', 'show'); 109 $http->check_cache('HomePage', 'show');
111 %% 110 %%
112 111
145   4. Returns count of invalidated caches 144   4. Returns count of invalidated caches
146 145
147 **Example:** 146 **Example:**
148 %%php 147 %%(hl php)
149 $count = $http->invalidate_page('HomePage'); 148 $count = $http->invalidate_page('HomePage');
150 echo "Invalidated $count cache entries"; 149 echo "Invalidated $count cache entries";
151 %% 150 %%
163   - Called when TLS session is detected 162   - Called when TLS session is detected
164 163
165 **Example:** 164 **Example:**
166 %%php 165 %%(hl php)
167 $http->secure_base_url(); 166 $http->secure_base_url();
168 // $db->base_url now uses https:// 167 // $db->base_url now uses https://
169 %% 168 %%
182   - Converts relative URLs using current server name 181   - Converts relative URLs using current server name
183 182
184 **Example:** 183 **Example:**
185 %%php 184 %%(hl php)
186 $http->ensure_tls('/secure/payment'); 185 $http->ensure_tls('/secure/payment');
187 %% 186 %%
188 187
210   - ##reverse_proxy_header## - Custom header name (default: ##X-Forwarded-For##) 209   - ##reverse_proxy_header## - Custom header name (default: ##X-Forwarded-For##)
211 210
212 **Example:** 211 **Example:**
213 %%php 212 %%(hl php)
214 $client_ip = $http->ip; // e.g., "203.0.113.42" 213 $client_ip = $http->ip; // e.g., "203.0.113.42"
215 %% 214 %%
216 215
254   - ##2## - Custom policy (from ##csp_custom.conf##) 253   - ##2## - Custom policy (from ##csp_custom.conf##)
255 254
256 **Example:** 255 **Example:**
257 %%php 256 %%(hl php)
258 $http->http_security_headers(); 257 $http->http_security_headers();
259 %% 258 %%
260 259
274   - Uses output buffering to work anywhere in page processing 273   - Uses output buffering to work anywhere in page processing
275 274
276 **Example:** 275 **Example:**
277 %%php 276 %%(hl php)
278 $http->redirect('http://example.com/new-page', true); // 301 277 $http->redirect('http://example.com/new-page', true); // 301
279 $http->redirect('/wiki/HomePage'); // 302 278 $http->redirect('/wiki/HomePage'); // 302
280 %% 279 %%
289   - Ends script execution 288   - Ends script execution
290 289
291 **Example:** 290 **Example:**
292 %%php 291 %%(hl php)
293 $http->terminate(); 292 $http->terminate();
294 %% 293 %%
295 294
299 Sets HTTP response status code. 298 Sets HTTP response status code.
300 299
301 **Supported Status Codes:** 300 **Supported Status Codes:**
302 %%php 301 %%(hl php)
303 200 => 'OK' 302 200 => 'OK'
304 206 => 'Partial Content' 303 206 => 'Partial Content'
305 301 => 'Moved Permanently' 304 301 => 'Moved Permanently'
319 %% 318 %%
320 319
321 **Example:** 320 **Example:**
322 %%php 321 %%(hl php)
323 $http->status(404); // Send 404 Not Found 322 $http->status(404); // Send 404 Not Found
324 %% 323 %%
325 324
340   - ##Cache-Control: no-store## 339   - ##Cache-Control: no-store##
341 340
342 **Example:** 341 **Example:**
343 %%php 342 %%(hl php)
344 $http->no_cache(); // Client-side only 343 $http->no_cache(); // Client-side only
345 $http->no_cache(false); // Both client & server 344 $http->no_cache(false); // Both client & server
346 %% 345 %%
354   - ##Cache-Control: public## 353   - ##Cache-Control: public##
355 354
356 **Example:** 355 **Example:**
357 %%php 356 %%(hl php)
358 $http->cache_promisc(); 357 $http->cache_promisc();
359 %% 358 %%
360 359
399   - Associative array: ##['en' => 'en', 'de' => 'de', ...]## 398   - Associative array: ##['en' => 'en', 'de' => 'de', ...]##
400 399
401 **Example:** 400 **Example:**
402 %%php 401 %%(hl php)
403 $all_langs = $http->available_languages(false); 402 $all_langs = $http->available_languages(false);
404 $allowed = $http->available_languages(true); 403 $allowed = $http->available_languages(true);
405 %% 404 %%
425   - GZip compression for text files 424   - GZip compression for text files
426 425
427 **Special Paths:** 426 **Special Paths:**
428 %%php 427 %%(hl php)
429 $http->sendfile(404); // Serves file defined by HTTP_404 constant 428 $http->sendfile(404); // Serves file defined by HTTP_404 constant
430 $http->sendfile(403); // Serves file defined by HTTP_403 constant 429 $http->sendfile(403); // Serves file defined by HTTP_403 constant
431 %% 430 %%
432 431
433 **Example:** 432 **Example:**
434 %%php 433 %%(hl php)
435 $http->sendfile('uploads/document.pdf', 'my-document.pdf', 30); 434 $http->sendfile('uploads/document.pdf', 'my-document.pdf', 30);
436 %% 435 %%
437 436
445   - Default: ##'application/octet-stream'## 444   - Default: ##'application/octet-stream'##
446 445
447 **Example:** 446 **Example:**
448 %%php 447 %%(hl php)
449 $mime = $http->mime_type('file.pdf'); // 'application/pdf' 448 $mime = $http->mime_type('file.pdf'); // 'application/pdf'
450 %% 449 %%
451 450
475   - Headers not already sent 474   - Headers not already sent
476 475
477 **Example:** 476 **Example:**
478 %%php 477 %%(hl php)
479 $http->gzip(); 478 $http->gzip();
480 %% 479 %%
481 480
491   - Converts encoding properly 490   - Converts encoding properly
492 491
493 **Example:** 492 **Example:**
494 %%php 493 %%(hl php)
495 $data = $http->parse_str('name=John&age=30'); 494 $data = $http->parse_str('name=John&age=30');
496 %% 495 %%
497 496
597 596
598 ==== Example 2: Handling TLS/HTTPS Upgrade ==== 597 ==== Example 2: Handling TLS/HTTPS Upgrade ====
599 598
600 %%php 599 %%(hl php)
601 $http = new Http($db); // Constructor detects TLS requirement 600 $http = new Http($db); // Constructor detects TLS requirement
602 // If TLS is enabled and user wasn't in TLS before: 601 // If TLS is enabled and user wasn't in TLS before:
603 // - Sets TLS session flag 602 // - Sets TLS session flag
607 606
608 ==== Example 3: Invalidating Cache After Page Edit ==== 607 ==== Example 3: Invalidating Cache After Page Edit ====
609 608
610 %%php 609 %%(hl php)
611 // User edits a page 610 // User edits a page
612 $http = new Http($db); 611 $http = new Http($db);
613 $count = $http->invalidate_page('HomePage'); 612 $count = $http->invalidate_page('HomePage');
616 615
617 ==== Example 4: Serving a File ==== 616 ==== Example 4: Serving a File ====
618 617
619 %%php 618 %%(hl php)
620 $http = new Http($db); 619 $http = new Http($db);
621 $http->session(2); // Static file mode - no session replay prevention 620 $http->session(2); // Static file mode - no session replay prevention
622 621
691 690
692 The class integrates with WackoWiki's diagnostic system: 691 The class integrates with WackoWiki's diagnostic system:
693 692
694 %%php 693 %%(hl php)
695 // Diagnostic messages are preserved across redirects 694 // Diagnostic messages are preserved across redirects
696 // via session flash data 695 // via session flash data
697 696