<?php

  ############################################
  #                                          #
  #  Author: AspieTom (tom@aspietom.co.uk)   #
  #                                          #
  #  Name: FanFiction.net Downloader (v0.1)  #
  #  Type: PHP eFiction Module               #
  #  License: GPL (see LICENSE.txt)          #
  #                                          #
  ############################################
  
  class ffmod
  {
    // A function to get text from between anchor tags.
    // Credit: morgan.galpin@gmail.com (at http://uk3.php.net/ereg)
    function returnSubStrings($text, $openingMarker, $closingMarker)
    {
      $openingMarkerLength = strlen($openingMarker);
      $closingMarkerLength = strlen($closingMarker);

      $result = array();
      $position = 0;
    
      while (($position = strpos($text, $openingMarker, $position)) !== false) {
        $position += $openingMarkerLength;
        if (($closingMarkerPosition = strpos($text, $closingMarker, $position)) !== false) {
          $result[] = substr($text, $position, $closingMarkerPosition - $position);
          $position = $closingMarkerPosition + $closingMarkerLength;
        }
      }
    
      return $result;
    }
    // A function to start the process of archiving a new story.
    function process($id)
    {
      $details = $this->getDetails($id);
      
      $path = "./".$details['title']." (".$id.")";
      mkdir($path, 0777);

      if($details['numchapters'] == 1)
      {
        $tempdata = $this->getChapter($id, $x);
        $chapterContent = $this->parseChapter($tempdata);
        $this->storeChapter($path, $id, $x, $details['chapternames'][$x], $chapterContent, 1);
      }
      else
      {
        $x = 1;
        while($x <= $details['numchapters'])
        {
          $tempdata = $this->getChapter($id, $x);
          $chapterContent = $this->parseChapter($tempdata);
          $this->storeChapter($path, $id, $x, $details['chapternames'][$x], $chapterContent);
          $x++;
        } 
      }
      return true;
    }
    // A function to check for updates on all, or a specific archived story.
    function cycleUpdate($id=null)
    {
      include("class.fanficdl.details.php");
      $ffDetails = new ffDetails;
      
      if(!empty($id))
      {
        # check how many chapters are already stored for $id, and put it in $oldChapters
        
        $chapters = $ffDetails->chapters($id);
        if($chapters[0] > $oldChapters)
        {
          # we need to process it
        }
      }
      else
      {
        # get a list of all the stories in the database
        # for each story do the following:
        #    check if it's got new chapters:
        #       if it has then update it,
        #       if it hasnt then finish
      }
      
      return true;
    }
    // A function to retrieve the details of a story ID.
    function getDetails($id)
    {
      include("class.fanficdl.details.php");
      $ffDetails = new ffDetails;

      $details = array();
      $details['storyid'] = $id;
      
      $firstChapterContent = $this->getChapter($id, 1);
      $thirdLine = $ffDetails->thirdLine($firstChapterContent);
          
      $tempChapters = $ffDetails->chapters($firstChapterContent);
      $details['numchapters'] = $tempChapters[0];
      $details['chapternames'] = $tempChapters[1];
      
      $tempAuthor = $ffDetails->author($firstChapterContent);
      $details['authorid'] = $tempAuthor[0];
      $details['author'] = $tempAuthor[1];
      
      $details['title'] = $ffDetails->title($firstChapterContent);
      $details['rating'] = $ffDetails->rating($thirdLine);
      $details['category'] = $ffDetails->category($thirdLine);
      $details['characters'] = $ffDetails->characters($thirdLine);
      $details['published'] = $ffDetails->published($thirdLine);
      $details['updated'] = $ffDetails->updated($thirdLine);
      
      $tempStatus = $ffDetails->status($thirdLine);
      $details['status'] = ($tempStatus==2) ? "Complete" : "Incomplete";
      
      $details['summary'] = $ffDetails->summary($id, $details['authorid']);
      
      return $details;
    }
    // A function to retrieve the code of a required chapter.
    function getChapter($id, $chapter)
    {
      $url = "http://www.fanfiction.net/s/".$id."/".$chapter."/";
      
      $header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
      $header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
      $header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
      $header[] = "Accept-Language: en-us,en;q=0.5";
      $header[] = "Pragma: ";
  
      $ch = curl_init();
      curl_setopt($ch, CURLOPT_URL, $url);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
      curl_setopt($ch, CURLOPT_TIMEOUT, 30);
      curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)");
      curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
      $data = curl_exec($ch);
      curl_close($ch);
    
      return $data;
    }
    // A function to parse the code that we retrieved.
    function parseChapter($content)
    {
      $contentSubStr = $this->returnSubStrings($content, "<!-- start story -->", "<!-- end story -->");
      return $contentSubStr[0];
    }
    // A function store a chapter under an existing archived story.
    function storeChapter($path, $id, $chapter, $name, $content, $oneshot=0)
    {
      if($oneshot == 1)
      {
        $fh = fopen($path."/story.html", "w+");
      }
      else
      {
        $fh = fopen($path."/".$chapter." - ".$name.".html", "w+");
      }
      fwrite($fh, $content);
      fclose($fh);      
    }
  }

$ffmod = new ffmod;
#$ffmod->process($_POST['id']);
 
#echo htmlentities($ffmod->getChapter($_GET['id'], 1));
echo htmlentities($ffmod->parseChapter($ffmod->getChapter($_GET['id'], 1)));
 
?>