Difference between revisions for Users / Eo Ny / dev





Revision 1 as of 05/05/2026 19:06 ▼
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Revision 8 as of 05/05/2026 19:24 ▼
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WikiAdmin

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12 12
13 13 === Class Properties ===
14 14
15   ==== Public Properties ====
  15 ====Public Properties====
16 16
17 17 #|
18 18 *| Property | Type | Description |*
… … …
21 21 || ##$ip## | string | Client's real IP address (accounts for proxies) ||
22 22 || ##$sess## | Session | Reference to the Session object ||
23 23 || ##$method## | string | Current HTTP method/request type ||
24   || ==== Private Properties ==== ||
25   || Property | Type | Description ||
26   || ---------- | ------ | ------------- ||
27   || ##$db## | object | Database connection reference ||
28   || ##$tls_mark## | string | Cookie name for TLS session marking ||
29   || ##$page## | string | Current page name being processed ||
30   || ##$hash## | string | SHA1 hash of the page name ||
31   || ##$query## | string | Encoded query string ||
32   || ##$lang## | string | Current language code ||
33   || ##$file## | string | Cache file path ||
34   || ##$caching## | int | Flag indicating if page should be cached (0 or 1) ||
35   || ---- ||
36   || === Constructor === ||
37   || %%php
  24 |#
  25
  26 ==== Private Properties ====
  27
  28
  29 === Constructor ===
  30
  31 %%php
38 32 public function __construct(&$db)
39   %% ||
40   || **Purpose:** Initializes the Http object and sets up HTTP session handling. ||
41   || **Parameters:** ||
42   || - ##$db## - Database object reference ||
43   || **Initialization Steps:** ||
44   || 1. Stores database reference ||
45   || 2. Extracts and normalizes REQUEST_URI ||
46   || 3. Detects TLS/HTTPS session status ||
47   || 4. Determines client's real IP address ||
48   || 5. Sets up TLS mark cookie name ||
49   || 6. Enforces TLS session upgrade if needed ||
50   || **Example:** ||
51   || %%php
  33 %%
  34
  35 **Purpose:** Initializes the Http object and sets up HTTP session handling.
  36
  37 **Parameters:**
  38   - ##$db## - Database object reference
  39
  40 **Initialization Steps:**
  41   1. Stores database reference
  42   2. Extracts and normalizes REQUEST_URI
  43   3. Detects TLS/HTTPS session status
  44   4. Determines client's real IP address
  45   5. Sets up TLS mark cookie name
  46   6. Enforces TLS session upgrade if needed
  47
  48 **Example:**
  49 %%php
52 50 $http = new Http($db);
53   %% ||
54   || ---- ||
55   || === Core Methods === ||
56   || ==== Session Management ==== ||
57   || ===== ##session($route): void## ===== ||
58   || Initializes the session handler (file-based or database-based). ||
59   || **Parameters:** ||
60   || - ##$route## (int) - Routing flag: ||
61   || - Bit 2 (##$route & 2##): Enable static mode for files/freecap (disables replay prevention and ID regeneration) ||
62   || **Features:** ||
63   || - Selects storage backend (file or database) ||
64   || - Configures cookie settings (security, path, httponly) ||
65   || - Binds IP and TLS validation ||
66   || - Recovers diagnostic logs from previous session ||
67   || **Example:** ||
68   || %%php
  51 %%
  52
  53 ----
  54
  55 === Core Methods ===
  56
  57 ==== Session Management ====
  58
  59 ===== ##session($route): void## =====
  60 Initializes the session handler (file-based or database-based).
  61
  62 **Parameters:**
  63   - ##$route## (int) - Routing flag:
  64   - Bit 2 (##$route & 2##): Enable static mode for files/freecap (disables replay prevention and ID regeneration)
  65
  66 **Features:**
  67   - Selects storage backend (file or database)
  68   - Configures cookie settings (security, path, httponly)
  69   - Binds IP and TLS validation
  70   - Recovers diagnostic logs from previous session
  71
  72 **Example:**
  73 %%php
69 74 $http->session(0); // Normal session
70 75 $http->session(2); // Static file serving mode
71   %% ||
72   || ---- ||
73   || ==== Caching System ==== ||
74   || ===== ##check_cache($page, $method): void## ===== ||
75   || Determines if a page can be cached and prepares the cache check. ||
76   || **Parameters:** ||
77   || - ##$page## (string) - Page name to cache ||
78   || - ##$method## (string) - Request method/action (e.g., 'show', 'edit') ||
79   || **Caching Rules:** ||
80   || - ✅ Enabled for GET requests only ||
81   || - ✅ Disabled for POST requests ||
82   || - ❌ Never cached for 'edit' or 'watch' methods ||
83   || - ✅ Only cached for anonymous users (no logged-in users) ||
84   || **Example:** ||
85   || %%php
  76 %%
  77
  78 ----
  79
  80 ==== Caching System ====
  81
  82 ===== ##check_cache($page, $method): void## =====
  83 Determines if a page can be cached and prepares the cache check.
  84
  85 **Parameters:**
  86   - ##$page## (string) - Page name to cache
  87   - ##$method## (string) - Request method/action (e.g., 'show', 'edit')
  88
  89 **Caching Rules:**
  90   - ✅ Enabled for GET requests only
  91   - ✅ Disabled for POST requests
  92   - ❌ Never cached for 'edit' or 'watch' methods
  93   - ✅ Only cached for anonymous users (no logged-in users)
  94
  95 **Example:**
  96 %%php
86 97 $http->check_cache('HomePage', 'show');
87   %% ||
88   || ---- ||
89   || ===== ##store_cache(): void## ===== ||
90   || Saves the generated page content to cache file. ||
91   || **Features:** ||
92   || - Retrieves output buffer content ||
93   || - Saves to cache file with proper permissions ||
94   || - Records cache metadata in database ||
95   || - Only executes if caching flag is set and user is anonymous ||
96   || **Example:** ||
97   || %%php
  98 %%
  99
  100 ----
  101
  102 ===== ##store_cache(): void## =====
  103 Saves the generated page content to cache file.
  104
  105 **Features:**
  106   - Retrieves output buffer content
  107   - Saves to cache file with proper permissions
  108   - Records cache metadata in database
  109   - Only executes if caching flag is set and user is anonymous
  110
  111 **Example:**
  112 %%php
98 113 // Called at end of page rendering
99 114 $http->store_cache();
100   %% ||
101   || ---- ||
102   || ===== ##invalidate_page($page): int## ===== ||
103   || Invalidates all cached versions of a page. ||
104   || **Parameters:** ||
105   || - ##$page## (string) - Page name to invalidate ||
106   || **Returns:** ||
107   || - Number of cache entries invalidated ||
108   || **Process:** ||
109   || 1. Finds all cached versions (different methods/languages) ||
110   || 2. Touches files to past timestamp (faster than deletion) ||
111   || 3. Removes entries from cache metadata table ||
112   || 4. Returns count of invalidated caches ||
113   || **Example:** ||
114   || %%php
  115 %%
  116
  117 ----
  118
  119 ===== ##invalidate_page($page): int## =====
  120 Invalidates all cached versions of a page.
  121
  122 **Parameters:**
  123   - ##$page## (string) - Page name to invalidate
  124
  125 **Returns:**
  126   - Number of cache entries invalidated
  127
  128 **Process:**
  129   1. Finds all cached versions (different methods/languages)
  130   2. Touches files to past timestamp (faster than deletion)
  131   3. Removes entries from cache metadata table
  132   4. Returns count of invalidated caches
  133
  134 **Example:**
  135 %%php
115 136 $count = $http->invalidate_page('HomePage');
116 137 echo "Invalidated $count cache entries";
117   %% ||
118   || ---- ||
119   || ==== TLS/HTTPS Security ==== ||
120   || ===== ##secure_base_url(): void## ===== ||
121   || Switches base URL from HTTP to HTTPS. ||
122   || **Purpose:** ||
123   || - Ensures all subsequent URLs use HTTPS ||
124   || - Stores original HTTP URL for fallback ||
125   || - Called when TLS session is detected ||
126   || **Example:** ||
127   || %%php
  138 %%
  139
  140 ----
  141
  142 ==== TLS/HTTPS Security ====
  143
  144 ===== ##secure_base_url(): void## =====
  145 Switches base URL from HTTP to HTTPS.
  146
  147 **Purpose:**
  148   - Ensures all subsequent URLs use HTTPS
  149   - Stores original HTTP URL for fallback
  150   - Called when TLS session is detected
  151
  152 **Example:**
  153 %%php
128 154 $http->secure_base_url();
129 155 // $db->base_url now uses https://
130   %% ||
131   || ---- ||
132   || ===== ##ensure_tls($url): void## ===== ||
133   || Enforces HTTPS for a specific URL and redirects if necessary. ||
134   || **Parameters:** ||
135   || - ##$url## (string) - URL to secure ||
136   || **Behavior:** ||
137   || - If not already HTTPS and TLS is enabled, forces HTTPS redirect ||
138   || - Handles both relative and absolute URLs ||
139   || - Converts relative URLs using current server name ||
140   || **Example:** ||
141   || %%php
  156 %%
  157
  158 ----
  159
  160 ===== ##ensure_tls($url): void## =====
  161 Enforces HTTPS for a specific URL and redirects if necessary.
  162
  163 **Parameters:**
  164   - ##$url## (string) - URL to secure
  165
  166 **Behavior:**
  167   - If not already HTTPS and TLS is enabled, forces HTTPS redirect
  168   - Handles both relative and absolute URLs
  169   - Converts relative URLs using current server name
  170
  171 **Example:**
  172 %%php
142 173 $http->ensure_tls('/secure/payment');
143   %% ||
144   || ---- ||
145   || ==== IP Address Detection ==== ||
146   || ===== ##real_ip(): string## (Private) ===== ||
147   || Detects client's real IP address accounting for proxies. ||
148   || **Proxy Headers Checked (in order):** ||
149   || 1. ##HTTP_X_CLUSTER_CLIENT_IP## ||
150   || 2. ##HTTP_X_FORWARDED_FOR## (or custom header) ||
151   || 3. ##HTTP_CLIENT_IP## ||
152   || 4. ##HTTP_X_REMOTE_ADDR## ||
153   || 5. ##REMOTE_ADDR## (fallback) ||
154   || **Features:** ||
155   || - Filters out private/reserved IP ranges ||
156   || - Respects configured reverse proxy addresses ||
157   || - Returns ##'0.0.0.0'## as fallback ||
158   || **Configuration in Database:** ||
159   || - ##reverse_proxy_addresses## - Comma/space-separated proxy IPs ||
160   || - ##reverse_proxy_header## - Custom header name (default: ##X-Forwarded-For##) ||
161   || **Example:** ||
162   || %%php
  174 %%
  175
  176 ----
  177
  178 ==== IP Address Detection ====
  179
  180 ===== ##real_ip(): string## (Private) =====
  181 Detects client's real IP address accounting for proxies.
  182
  183 **Proxy Headers Checked (in order):**
  184   1. ##HTTP_X_CLUSTER_CLIENT_IP##
  185   2. ##HTTP_X_FORWARDED_FOR## (or custom header)
  186   3. ##HTTP_CLIENT_IP##
  187   4. ##HTTP_X_REMOTE_ADDR##
  188   5. ##REMOTE_ADDR## (fallback)
  189
  190 **Features:**
  191   - Filters out private/reserved IP ranges
  192   - Respects configured reverse proxy addresses
  193   - Returns ##'0.0.0.0'## as fallback
  194
  195 **Configuration in Database:**
  196   - ##reverse_proxy_addresses## - Comma/space-separated proxy IPs
  197   - ##reverse_proxy_header## - Custom header name (default: ##X-Forwarded-For##)
  198
  199 **Example:**
  200 %%php
163 201 $client_ip = $http->ip; // e.g., "203.0.113.42"
164   %% ||
165   || ---- ||
166   || ==== HTTPS Detection ==== ||
167   || ===== ##tls_session(): bool## (Private) ===== ||
168   || Detects if current connection uses HTTPS/TLS. ||
169   || **Checks (any being true = HTTPS):** ||
170   || - ##$_SERVER['HTTPS']## is 'on' ||
171   || - ##$_SERVER['SERVER_PORT']## is 443 ||
172   || - ##$_SERVER['HTTP_X_FORWARDED_PROTO']## is 'https' ||
173   || - ##$_SERVER['HTTP_X_FORWARDED_SSL']## is 'on' ||
174   || - ##$_SERVER['HTTP_X_FORWARDED_PORT']## is 443 ||
175   || ---- ||
176   || ==== Security Headers ==== ||
177   || ===== ##http_security_headers(): void## ===== ||
178   || Sets security-related HTTP headers. ||
179   || **Headers Set:** ||
180   || Header | Purpose | Config Key ||
181   || -------- | --------- | ------------ ||
182   || Content-Security-Policy | XSS/injection protection | ##csp## ||
183   || Permissions-Policy | Control browser features | ##permissions_policy## ||
184   || Referrer-Policy | Control referrer information | ##referrer_policy## ||
185   || Strict-Transport-Security | Force HTTPS | Auto (TLS only) ||
186   || X-Frame-Options | Clickjacking protection | Hardcoded: ##SAMEORIGIN## ||
187   || X-Content-Type-Options | MIME sniffing prevention | Hardcoded: ##nosniff## ||
188   || **CSP Configuration Options:** ||
189   || - ##0## - Disabled ||
190   || - ##1## - Default policy (from ##csp.conf##) ||
191   || - ##2## - Custom policy (from ##csp_custom.conf##) ||
192   || **Example:** ||
193   || %%php
194   $http->http_security_headers();
195   %% ||
196   || ---- ||
197   || ==== HTTP Methods ==== ||
198   || ===== ##redirect($url, $permanent = false): void## ===== ||
199   || Performs an HTTP redirect. ||
200   || **Parameters:** ||
201   || - ##$url## (string) - Target URL ||
202   || - ##$permanent## (bool) - Use 301 (permanent) vs 302 (temporary) ||
203   || **Features:** ||
204   || - Decodes ##&## entities to prevent broken redirects ||
205   || - Only works if headers not yet sent ||
206   || - Uses output buffering to work anywhere in page processing ||
207   || **Example:** ||
208   || %%php
  202 %%
  203
  204 ----
  205
  206 ==== HTTPS Detection ====
  207
  208 ===== ##tls_session(): bool## (Private) =====
  209 Detects if current connection uses HTTPS/TLS.
  210
  211 **Checks (any being true = HTTPS):**
  212   - ##$_SERVER['HTTPS']## is 'on'
  213   - ##$_SERVER['SERVER_PORT']## is 443
  214   - ##$_SERVER['HTTP_X_FORWARDED_PROTO']## is 'https'
  215   - ##$_SERVER['HTTP_X_FORWARDED_SSL']## is 'on'
  216   - ##$_SERVER['HTTP_X_FORWARDED_PORT']## is 443
  217
  218 ----
  219
  220 ==== Security Headers ====
  221
  222 ===== ##http_security_headers(): void## =====
  223
  224
  225 ==== HTTP Methods ====
  226
  227 ===== ##redirect($url, $permanent = false): void## =====
  228 Performs an HTTP redirect.
  229
  230 **Parameters:**
  231   - ##$url## (string) - Target URL
  232   - ##$permanent## (bool) - Use 301 (permanent) vs 302 (temporary)
  233
  234 **Features:**
  235   - Decodes ##&## entities to prevent broken redirects
  236   - Only works if headers not yet sent
  237   - Uses output buffering to work anywhere in page processing
  238
  239 **Example:**
  240 %%php
209 241 $http->redirect('http://example.com/new-page', true); // 301
210 242 $http->redirect('/wiki/HomePage'); // 302
211   %% ||
212   || ---- ||
213   || ===== ##terminate(): void## ===== ||
214   || Safe exit/die with cleanup. ||
215   || **Cleanup Operations:** ||
216   || - Saves diagnostic logs to session flash data ||
217   || - Ends script execution ||
218   || **Example:** ||
219   || %%php
  243 %%
  244
  245 ----
  246
  247 ===== ##terminate(): void## =====
  248 Safe exit/die with cleanup.
  249
  250 **Cleanup Operations:**
  251   - Saves diagnostic logs to session flash data
  252   - Ends script execution
  253
  254 **Example:**
  255 %%php
220 256 $http->terminate();
221   %% ||
222   || ---- ||
223   || ===== ##status($code): void## ===== ||
224   || Sets HTTP response status code. ||
225   || **Supported Status Codes:** ||
226   || %%php
  257 %%
  258
  259 ----
  260
  261 ===== ##status($code): void## =====
  262 Sets HTTP response status code.
  263
  264 **Supported Status Codes:**
  265 %%php
227 266 200 => 'OK'
228 267 206 => 'Partial Content'
229 268 301 => 'Moved Permanently'
… … …
240 279 500 => 'Internal Server Error'
241 280 501 => 'Not Implemented'
242 281 503 => 'Service Unavailable'
243   %% ||
244   || **Example:** ||
245   || %%php
  282 %%
  283
  284 **Example:**
  285 %%php
246 286 $http->status(404); // Send 404 Not Found
247   %% ||
248   || ---- ||
249   || ==== Caching Control ==== ||
250   || ===== ##no_cache($client_only = true): void## ===== ||
251   || Disables caching of the current page. ||
252   || **Parameters:** ||
253   || - ##$client_only## (bool, default: TRUE) ||
254   || - ##TRUE##: Disable browser cache only ||
255   || - ##FALSE##: Disable both browser and server cache ||
256   || **Headers Set:** ||
257   || - ##Last-Modified: <current-time>## (always fresh) ||
258   || - ##Cache-Control: no-store## ||
259   || **Example:** ||
260   || %%php
  287 %%
  288
  289 ----
  290
  291 ==== Caching Control ====
  292
  293 ===== ##no_cache($client_only = true): void## =====
  294 Disables caching of the current page.
  295
  296 **Parameters:**
  297   - ##$client_only## (bool, default: TRUE)
  298   - ##TRUE##: Disable browser cache only
  299   - ##FALSE##: Disable both browser and server cache
  300
  301 **Headers Set:**
  302   - ##Last-Modified: <current-time>## (always fresh)
  303   - ##Cache-Control: no-store##
  304
  305 **Example:**
  306 %%php
261 307 $http->no_cache(); // Client-side only
262 308 $http->no_cache(false); // Both client & server
263   %% ||
264   || ---- ||
265   || ===== ##cache_promisc(): void## ===== ||
266   || Marks page as publicly cacheable. ||
267   || **Headers Set:** ||
268   || - ##Cache-Control: public## ||
269   || **Example:** ||
270   || %%php
  309 %%
  310
  311 ----
  312
  313 ===== ##cache_promisc(): void## =====
  314 Marks page as publicly cacheable.
  315
  316 **Headers Set:**
  317   - ##Cache-Control: public##
  318
  319 **Example:**
  320 %%php
271 321 $http->cache_promisc();
272   %% ||
273   || ---- ||
274   || ==== Language Negotiation ==== ||
275   || ===== ##user_agent_language(): string## ===== ||
276   || Determines best language based on browser preferences. ||
277   || **Features:** ||
278   || - Follows RFC 9110 section 12.5.4 (HTTP Accept-Language) ||
279   || - Parses ##Accept-Language## header with quality factors ||
280   || - Attempts exact match first, then language fallback ||
281   || - Falls back to default system language ||
282   || **Example Header:** ||
283   || %%
  322 %%
  323
  324 ----
  325
  326 ==== Language Negotiation ====
  327
  328 ===== ##user_agent_language(): string## =====
  329 Determines best language based on browser preferences.
  330
  331 **Features:**
  332   - Follows RFC 9110 section 12.5.4 (HTTP Accept-Language)
  333   - Parses ##Accept-Language## header with quality factors
  334   - Attempts exact match first, then language fallback
  335   - Falls back to default system language
  336
  337 **Example Header:**
  338 %%
284 339 Accept-Language: en-US,en;q=0.9,de;q=0.8
285   %% ||
286   || **Returns:** ||
287   || - Language code (e.g., 'en', 'en-US', 'de') ||
288   || ---- ||
289   || ===== ##available_languages($subset = true): array## ===== ||
290   || Returns list of available language translations. ||
291   || **Parameters:** ||
292   || - ##$subset## (bool, default: TRUE) ||
293   || - ##TRUE##: Only allowed languages ||
294   || - ##FALSE##: All available languages ||
295   || **Features:** ||
296   || - Scans ##LANG_DIR## for language files ||
297   || - Filters by ##allowed_languages## config if set ||
298   || - Caches result in session ||
299   || - System language always included ||
300   || **Returns:** ||
301   || - Associative array: ##['en' => 'en', 'de' => 'de', ...]## ||
302   || **Example:** ||
303   || %%php
  340 %%
  341
  342 **Returns:**
  343   - Language code (e.g., 'en', 'en-US', 'de')
  344
  345 ----
  346
  347 ===== ##available_languages($subset = true): array## =====
  348 Returns list of available language translations.
  349
  350 **Parameters:**
  351   - ##$subset## (bool, default: TRUE)
  352   - ##TRUE##: Only allowed languages
  353   - ##FALSE##: All available languages
  354
  355 **Features:**
  356   - Scans ##LANG_DIR## for language files
  357   - Filters by ##allowed_languages## config if set
  358   - Caches result in session
  359   - System language always included
  360
  361 **Returns:**
  362   - Associative array: ##['en' => 'en', 'de' => 'de', ...]##
  363
  364 **Example:**
  365 %%php
304 366 $all_langs = $http->available_languages(false);
305 367 $allowed = $http->available_languages(true);
306   %% ||
307   || ---- ||
308   || ==== File Serving ==== ||
309   || ===== ##sendfile($path, $filename = null, $age = null): void## ===== ||
310   || Serves files with proper HTTP headers and caching. ||
311   || **Parameters:** ||
312   || - ##$path## (string) - File path (or HTTP_XXX constant for error pages) ||
313   || - ##$filename## (string, optional) - Custom download filename ||
314   || - ##$age## (int, optional) - Cache age in days ||
315   || **Features:** ||
316   || - HTTP range request support (partial file downloads) ||
317   || - ETag and Last-Modified conditional requests ||
318   || - Proper MIME type detection ||
319   || - Content-Security-Policy for special file types ||
320   || - Streaming for large files ||
321   || - GZip compression for text files ||
322   || **Special Paths:** ||
323   || %%php
  368 %%
  369
  370 ----
  371
  372 ==== File Serving ====
  373
  374 ===== ##sendfile($path, $filename = null, $age = null): void## =====
  375 Serves files with proper HTTP headers and caching.
  376
  377 **Parameters:**
  378   - ##$path## (string) - File path (or HTTP_XXX constant for error pages)
  379   - ##$filename## (string, optional) - Custom download filename
  380   - ##$age## (int, optional) - Cache age in days
  381
  382 **Features:**
  383   - HTTP range request support (partial file downloads)
  384   - ETag and Last-Modified conditional requests
  385   - Proper MIME type detection
  386   - Content-Security-Policy for special file types
  387   - Streaming for large files
  388   - GZip compression for text files
  389
  390 **Special Paths:**
  391 %%php
324 392 $http->sendfile(404); // Serves file defined by HTTP_404 constant
325 393 $http->sendfile(403); // Serves file defined by HTTP_403 constant
326   %% ||
327   || **Example:** ||
328   || %%php
  394 %%
  395
  396 **Example:**
  397 %%php
329 398 $http->sendfile('uploads/document.pdf', 'my-document.pdf', 30);
330   %% ||
331   || ---- ||
332   || ===== ##mime_type($path): string## ===== ||
333   || Returns MIME type for a file. ||
334   || **Returns:** ||
335   || - MIME type string (e.g., 'application/pdf') ||
336   || - Default: ##'application/octet-stream'## ||
337   || **Example:** ||
338   || %%php
  399 %%
  400
  401 ----
  402
  403 ===== ##mime_type($path): string## =====
  404 Returns MIME type for a file.
  405
  406 **Returns:**
  407   - MIME type string (e.g., 'application/pdf')
  408   - Default: ##'application/octet-stream'##
  409
  410 **Example:**
  411 %%php
339 412 $mime = $http->mime_type('file.pdf'); // 'application/pdf'
340   %% ||
341   || ---- ||
342   || ===== ##mime_types(): array## (Private) ===== ||
343   || Loads and caches MIME types from configuration. ||
344   || **Features:** ||
345   || - Reads from ##config/mime.types## ||
346   || - Caches to ##cache/config/mime.types## ||
347   || - Reloads if config is updated ||
348   || ---- ||
349   || ==== Compression ==== ||
350   || ===== ##gzip(): void## ===== ||
351   || Compresses HTTP response with gzip/x-gzip. ||
352   || **Features:** ||
353   || - Manually implements gzip (not relying on zlib.output_compression) ||
354   || - Produces correct ##Content-Length## header ||
355   || - Only compresses if: ||
356   || - 860 bytes < content < 1 MB ||
357   || - Client accepts compression ||
358   || - Headers not already sent ||
359   || **Example:** ||
360   || %%php
  413 %%
  414
  415 ----
  416
  417 ===== ##mime_types(): array## (Private) =====
  418 Loads and caches MIME types from configuration.
  419
  420 **Features:**
  421   - Reads from ##config/mime.types##
  422   - Caches to ##cache/config/mime.types##
  423   - Reloads if config is updated
  424
  425 ----
  426
  427 ==== Compression ====
  428
  429 ===== ##gzip(): void## =====
  430 Compresses HTTP response with gzip/x-gzip.
  431
  432 **Features:**
  433   - Manually implements gzip (not relying on zlib.output_compression)
  434   - Produces correct ##Content-Length## header
  435   - Only compresses if:
  436   - 860 bytes < content < 1 MB
  437   - Client accepts compression
  438   - Headers not already sent
  439
  440 **Example:**
  441 %%php
361 442 $http->gzip();
362   %% ||
363   || ---- ||
364   || ==== Utility Methods ==== ||
365   || ===== ##parse_str($str): array## (Private) ===== ||
366   || Parses URL-encoded strings with special character handling. ||
367   || **Purpose:** ||
368   || - Safely handles special characters in query/form data ||
369   || - Converts encoding properly ||
370   || **Example:** ||
371   || %%php
  443 %%
  444
  445 ----
  446
  447 ==== Utility Methods ====
  448
  449 ===== ##parse_str($str): array## (Private) =====
  450 Parses URL-encoded strings with special character handling.
  451
  452 **Purpose:**
  453   - Safely handles special characters in query/form data
  454   - Converts encoding properly
  455
  456 **Example:**
  457 %%php
372 458 $data = $http->parse_str('name=John&age=30');
373   %% ||
374   || ---- ||
375   || ===== ##request_uri(): string## (Private) ===== ||
376   || Extracts and normalizes REQUEST_URI from server. ||
377   || **Normalization:** ||
378   || - Removes base URL prefix ||
379   || - Removes spaces ||
380   || - Collapses multiple slashes ||
381   || - Removes ##..## path traversal attempts ||
382   || - Removes leading/trailing slashes ||
383   || ---- ||
384   || ===== ##cut_prefix($prefix, $path): string## (Private) ===== ||
385   || Removes prefix from path (case-insensitive). ||
386   || ---- ||
387   || ===== ##get_header_conf($file_name): string## (Private) ===== ||
388   || Loads security header configuration from files. ||
389   || **Files Supported:** ||
390   || - ##csp.conf## / ##csp_custom.conf## ||
391   || - ##permissions_policy.conf## / ##permissions_policy_custom.conf## ||
392   || ---- ||
393   || === Configuration Dependencies === ||
394   || The class relies on these database configuration settings: ||
395   || Setting | Type | Purpose ||
396   || --------- | ------ | --------- ||
397   || ##base_url## | string | Wiki's base URL ||
398   || ##tls## | bool | Enable HTTPS enforcement ||
399   || ##cache## | bool | Enable page caching ||
400   || ##cache_ttl## | int | Cache lifetime in seconds ||
401   || ##session_store## | int | 1=File, 0=Database ||
402   || ##system_seed_hash## | string | Session encryption seed ||
403   || ##cookie_prefix## | string | Session cookie prefix ||
404   || ##cookie_path## | string | Cookie path ||
405   || ##allow_persistent_cookie## | bool | Allow persistent login ||
406   || ##session_length## | int | Session lifetime in seconds ||
407   || ##reverse_proxy_addresses## | string | Comma/space-separated proxy IPs ||
408   || ##reverse_proxy_header## | string | Custom X-Forwarded header ||
409   || ##language## | string | Default language code ||
410   || ##multilanguage## | bool | Enable language negotiation ||
411   || ##allowed_languages## | string | Comma/space-separated allowed langs ||
412   || ##enable_security_headers## | bool | Send security headers ||
413   || ##csp## | int | CSP setting (0/1/2) ||
414   || ##permissions_policy## | int | Permissions-Policy setting (0/1/2) ||
415   || ##referrer_policy## | int | Referrer-Policy setting (0-8) ||
416   || ---- ||
417   || === Constants Used === ||
418   || Constant | Type | Purpose ||
419   || ---------- | ------ | --------- ||
420   || ##IN_WACKO## | bool | Security check (exit if not defined) ||
421   || ##CHMOD_SAFE## | int | File permissions for cache files ||
422   || ##CHMOD_FILE## | int | File permissions for config cache ||
423   || ##CACHE_PAGE_DIR## | string | Page cache directory ||
424   || ##CACHE_SESSION_DIR## | string | Session cache directory ||
425   || ##CACHE_CONFIG_DIR## | string | Config cache directory ||
426   || ##CONFIG_DIR## | string | Configuration directory ||
427   || ##LANG_DIR## | string | Language files directory ||
428   || ##DAYSECS## | int | Seconds in a day (86400) ||
429   || ##HTTP_404## | string | Path to 404 error page ||
430   || ##HTTP_403## | string | Path to 403 error page ||
431   |#
432  
433   ----
  459 %%
  460
  461 ----
  462
  463 ===== ##request_uri(): string## (Private) =====
  464 Extracts and normalizes REQUEST_URI from server.
  465
  466 **Normalization:**
  467   - Removes base URL prefix
  468   - Removes spaces
  469   - Collapses multiple slashes
  470   - Removes ##..## path traversal attempts
  471   - Removes leading/trailing slashes
  472
  473 ----
  474
  475 ===== ##cut_prefix($prefix, $path): string## (Private) =====
  476 Removes prefix from path (case-insensitive).
  477
  478 ----
  479
  480 ===== ##get_header_conf($file_name): string## (Private) =====
  481 Loads security header configuration from files.
  482
  483 **Files Supported:**
  484   - ##csp.conf## / ##csp_custom.conf##
  485   - ##permissions_policy.conf## / ##permissions_policy_custom.conf##
  486
  487 ----
  488
  489 === Configuration Dependencies ===
  490
  491
  492
  493 === Constants Used ===
  494
  495
434 496
435 497 === Workflow Examples ===
436 498