@@ -282,6 +282,9 @@ discard block  | 
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| 282 | 282 | return count($result) ? $result : null;  | 
                                                        
| 283 | 283 | }  | 
                                                        
| 284 | 284 | |
| 285 | + /**  | 
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| 286 | + * @param string $content  | 
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| 287 | + */  | 
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| 285 | 288 |  	public static function getLinksIn($content) { | 
                                                        
| 286 | 289 |  		return self::findByTagAndAttribute($content, array("a" => "href")); | 
                                                        
| 287 | 290 | }  | 
                                                        
@@ -338,11 +341,17 @@ discard block  | 
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| 338 | 341 | self::$modification_date = $timestamp;  | 
                                                        
| 339 | 342 | }  | 
                                                        
| 340 | 343 | |
| 344 | + /**  | 
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| 345 | + * @param integer $timestamp  | 
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| 346 | + */  | 
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| 341 | 347 |  	public static function register_modification_timestamp($timestamp) { | 
                                                        
| 342 | 348 | if($timestamp > self::$modification_date)  | 
                                                        
| 343 | 349 | self::$modification_date = $timestamp;  | 
                                                        
| 344 | 350 | }  | 
                                                        
| 345 | 351 | |
| 352 | + /**  | 
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| 353 | + * @param string $etag  | 
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| 354 | + */  | 
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| 346 | 355 |  	public static function register_etag($etag) { | 
                                                        
| 347 | 356 |  		if (0 !== strpos($etag, '"')) { | 
                                                        
| 348 | 357 |  			$etag = sprintf('"%s"', $etag); | 
                                                        
@@ -489,7 +498,7 @@ discard block  | 
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| 489 | 498 | }  | 
                                                        
| 490 | 499 | |
| 491 | 500 | /**  | 
                                                        
| 492 | - * @param SS_HTTPResponse|string $response  | 
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| 501 | + * @param SS_HTTPResponse|null $response  | 
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| 493 | 502 | *  | 
                                                        
| 494 | 503 | * @return string|false  | 
                                                        
| 495 | 504 | */  |