feedforall_scripts_cachingextension.php

RSS to SQL Caching Tools

    if (isset($debugLevel) && ($debugLevel >= 1)) {
      echo "DIAG: FeedForAll_scripts_contentOfCache(): return false<br>\n";
    }
    return FALSE;
  }
  
  Function FeedForAll_scripts_readFile($filename, $useFopenURL, $useCaching = 0, $actualCacheTTL = -1) {
    GLOBAL $cacheFolder;
    GLOBAL $useExpiredOnError;
    GLOBAL $debugLevel;
    GLOBAL $connectTimeoutLimit;

    if (isset($debugLevel) && ($debugLevel >= 1)) {
      echo "DIAG: FeedForAll_scripts_readFile($filename, $useFopenURL, $useCaching, $actualCacheTTL)<br>\n";
    }
    
    //
    // Add the path to $cacheFolder, incase it is called from a different directoy
    $localCacheFolder = dirname(__FILE__)."/$cacheFolder";
    
    $GLOBALS["ERRORSTRING"] = "";
    $result = "";
    if (stristr($filename, "://")) {
      if ($useFopenURL) {
        if (($result = FeedForAll_scripts_contentOfCache($filename, $useCaching, $actualCacheTTL)) === FALSE) {
          if (($fd = @fopen($filename, "rb")) === FALSE) {
            return FeedForAll_scripts_contentOfCache($filename, $useCaching, $actualCacheTTL, $useExpiredOnError);
          }
          if (isset($debugLevel) && ($debugLevel >= 1)) {
            echo "DIAG: FeedForAll_scripts_readFile(): fopen() succeeded<br>\n";
          }
          while (($data = fread($fd, 4096)) != "") {
            $result .= $data;
          }
          fclose($fd);
          if ($useCaching) {
            if (($fd = @fopen($localCacheFolder."/".md5($filename), "wb")) !== FALSE) {
              if (@flock($fd, LOCK_EX)) {
                if (isset($debugLevel) && ($debugLevel >= 1)) {
                  echo "DIAG: FeedForAll_scripts_readFile(): flock() successeded<br>\n";
                }
                fwrite($fd, $result);
                flock($fd, LOCK_UN);
                chmod($localCacheFolder."/".md5($filename), 0664);
              }
              fclose($fd);
              if (isset($debugLevel) && ($debugLevel >= 1)) {
                echo "DIAG: FeedForAll_scripts_readFile(): fclose()<br>\n";
              }
            } else {
              if (isset($debugLevel) && ($debugLevel >= 1)) {
                echo "DIAG: FeedForAll_scripts_readFile(): fopen(): failed<br>\n";
              }
            }
          }
        }
      } else {
        if (($result = FeedForAll_scripts_contentOfCache($filename, $useCaching, $actualCacheTTL)) === FALSE) {
          // This is a URL so use CURL
          $curlHandle = curl_init();
          curl_setopt($curlHandle, CURLOPT_URL, $filename);
          curl_setopt($curlHandle, CURLOPT_HEADER, 0);
          curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, 1);
          curl_setopt($curlHandle, CURLOPT_USERAGENT, "FeedForAll rss2html.php v2");
          //    curl_setopt($curlHandle, CURLOPT_AUTOREFERER, 1);
          curl_setopt($curlHandle, CURLOPT_REFERER, $filename);
          if (ini_get("safe_mode") || ini_get("open_basedir")) {
            ;
          } else {
            curl_setopt($curlHandle, CURLOPT_FOLLOWLOCATION, 1);
          }
          if (isset($connectTimeoutLimit) && $connectTimeoutLimit != 0) {
            curl_setopt($curlHandle, CURLOPT_CONNECTTIMEOUT, $connectTimeoutLimit);
          }
          curl_setopt($curlHandle, CURLOPT_MAXREDIRS, 10);
          $result = curl_exec($curlHandle);
          if (curl_errno($curlHandle)) {
            $GLOBALS["ERRORSTRING"] = curl_error($curlHandle);
            curl_close($curlHandle);
            return FeedForAll_scripts_contentOfCache($filename, $useCaching, $actualCacheTTL, $useExpiredOnError);
          }
          curl_close($curlHandle);
          if ($useCaching) {
            if (($fd = fopen($localCacheFolder."/".md5($filename), "wb")) !== FALSE) {
              if (flock($fd, LOCK_EX)) {
                if (isset($debugLevel) && ($debugLevel >= 1)) {
                  echo "DIAG: FeedForAll_scripts_readFile(): flock() successeded<br>\n";
                }
                fwrite($fd, $result);
                flock($fd, LOCK_UN);
                chmod($localCacheFolder."/".md5($filename), 0664);
              }
              fclose($fd);
              if (isset($debugLevel) && ($debugLevel >= 1)) {
                echo "DIAG: FeedForAll_scripts_readFile(): fclose()<br>\n";
              }
            } else {
              if (isset($debugLevel) && ($debugLevel >= 1)) {
                echo "DIAG: FeedForAll_scripts_readFile(): fopen(): failed<br>\n";
              }
            }
          }
        }
      }
    } else {
      // This is a local file, so use fopen
      if (($result = FeedForAll_scripts_contentOfCache($filename, $useCaching, $actualCacheTTL)) === FALSE) {
        if (($fd = @fopen($filename, "rb")) === FALSE) {
          return FeedForAll_scripts_contentOfCache($filename, $useCaching, $actualCacheTTL, $useExpiredOnError);
        }
        while (($data = fread($fd, 4096)) != "") {
          $result .= $data;
        }
        fclose($fd);
        if ($useCaching) {
          if (($fd = fopen($localCacheFolder."/".md5($filename), "wb")) !== FALSE) {
            if (flock($fd, LOCK_EX)) {
              if (isset($debugLevel) && ($debugLevel >= 1)) {
                echo "DIAG: FeedForAll_scripts_readFile(): flock() successeded<br>\n";
              }
              fwrite($fd, $result);
              flock($fd, LOCK_UN);
              chmod($localCacheFolder."/".md5($filename), 0664);
            }
            fclose($fd);
            if (isset($debugLevel) && ($debugLevel >= 1)) {
              echo "DIAG: FeedForAll_scripts_readFile(): fclose()<br>\n";
            }
          } else {
            if (isset($debugLevel) && ($debugLevel >= 1)) {
              echo "DIAG: FeedForAll_scripts_readFile(): fopen(): failed<br>\n";
            }
          }
        }
      }
    }
    if (isset($debugLevel) && ($debugLevel >= 1)) {
      echo "DIAG: FeedForAll_scripts_readFile(): return SUCCESSFUL<br>\n";
    }
    return $result;
  }
  
  Function FeedForAll_scripts_readOutputCacheFile($xmlFile, $tempalteFile) {
    GLOBAL $cacheFolder;
    GLOBAL $outputCacheTTL;
    
    //
    // If we are in here, it is assumed we what caching
    $useOutputCaching = 1;
    
    //
    // Add the path to $cacheFolder, incase it is called from a different directoy
    $localCacheFolder = dirname(__FILE__)."/$cacheFolder";

    //
    // Make the directory if it doesn't exist
    if (file_exists($localCacheFolder) === FALSE) {
      if (@mkdir($localCacheFolder, 0777) === FALSE) {
        $useOutputCaching = 0;
      }
    }

    $gotDataFromCache = 0;

    if ($useOutputCaching && !isset($_REQUEST["FORCECACHEREFRESH"])) {
      $outputCacheName = "$localCacheFolder/".md5("$xmlFile - $tempalteFile").".cache.html";

      if (file_exists($outputCacheName) === TRUE) {
        // File exists, so lets check the age
        if ((time() - filemtime($outputCacheName)) <= $outputCacheTTL) {
          if (($fd = @fopen($outputCacheName, "rb")) !== FALSE) {
            if (flock($fd, LOCK_EX)) {
              $finalResult = fread($fd, filesize($outputCacheName));
              flock($fd, LOCK_UN);
              if (strlen($finalResult) == filesize($outputCacheName)) {
                return $finalResult;
              }
            }
            fclose($fd);
          }
        }
      }
    }
    return FALSE;
  }

  Function FeedForAll_scripts_writeOutputCacheFile($xmlFile, $tempalteFile, $outputString) {
    GLOBAL $cacheFolder;
    
    //
    // If we are in here, it is assumed we what caching
    $useOutputCaching = 1;
    
    //
    // Add the path to $cacheFolder, incase it is called from a different directoy
    $localCacheFolder = dirname(__FILE__)."/$cacheFolder";

    //
    // Make the directory if it doesn't exist
    if (file_exists($localCacheFolder) === FALSE) {
      if (@mkdir($localCacheFolder, 0777) === FALSE) {
        $useOutputCaching = 0;
      }
    }

    if ($useOutputCaching && !isset($_REQUEST["FORCECACHEREFRESH"])) {
      $outputCacheName = "$localCacheFolder/".md5("$xmlFile - $tempalteFile").".cache.html";
      
      //
      // Write to cache
      if (($fd = @fopen($outputCacheName, "wb")) !== FALSE) {
        if (@flock($fd, LOCK_EX)) {
          fwrite($fd, $outputString);
          flock($fd, LOCK_UN);
        }
        fclose($fd);
      }
    }
  }
}

?>