FreshmeatRdfs.php

<?php


/***********************************************************
 Copyright (C) 2008 Hewlett-Packard Development Company, L.P.

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 version 2 as published by the Free Software Foundation.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 ***********************************************************/

class FreshmeatRdfs
{
  public $error_code        = NULL;
  public $error_out         = array();
  public $uncompresser      = 'bunzip2';
  public $uncompressed_file = NULL;
  private $project_info     = array ();

  public function Uncompress($file)
  {
    /* should also check for existence? */
    /* what about a try catch? */

    if (!(empty ($file)))
    {
      $toss = exec("$this->uncompresser $file 2>&1", $output, $rtn);
    }
    if ($rtn != 0)
    {
      echo "DBG: UNCOMP-> uncompressor returned:$rtn\n";
      $this->error_code = $rtn;
      $this->error_out = $output[0];
      return (FALSE);
    }
    /* if there is no .bz2 on the end nothing gets chopped... */
    $this->uncompressed_file = rtrim($file, '.bz2');
    return (TRUE);
  }

  public function FindInProjInfo($name, $search_space)
  {
    $found = NULL;
    $match = NULL;
    if (empty ($name))
    {
      return (NULL);
    }
    if (empty ($search_space))
    {
      return (NULL);
    }
    $pkey = array_keys($search_space);
    //print "DB: FMRDFS: pkey is:\n";
    //var_dump($pkey);
    //$this->write2file($pkey);
    if(empty($pkey))
    {
      print "DB: FIPI: Pkey is empty!\n";
      return(NULL);
    }
    else
    {
      $found = array_search($name, $pkey);
      if (!is_null($found))
      {
        //print "DB FIPI: setting match\n";
        $match = $search_space[$pkey[$found]];
      }
      return ($match);
    }
  }

  public function XtractProjInfo($rdf_file)
  {
    /*
     * be nice to check if it's compressed and if so, uncompress it,
     * later
     *
     * NOTE: this routine will return a VERY large array of data.
     * See the data structure below for the data collected.
     */

    /*
     * Data Structure:
     *
     *     Key            Value (s)
     *     ---            --------
     *   project_name     <zero or more urls to archives>,
     *                    <short-description>, version
     *
     */
    if (!(file_exists("$rdf_file")))
    {
      return;
    }
    $meatdoc = simplexml_load_file("$rdf_file");
    foreach ($meatdoc->project as $project)
    {
      $this->project_info["$project->projectname_short"]
      = array (
        "$project->url_tgz",
        "$project->url_bz2",
        "$project->url_zip",
        "$project->desc_short"
      );
      foreach ($project->latest_release as $verdata)
      {
        array_push(& $this->project_info["$project->projectname_short"],
        $verdata->latest_release_version
                   );
      }
    }
    ksort($this->project_info);
    return ($this->project_info);
  }

  function write2file($array_var)
  {
    $name = 'pkeys' . getmypid();
    $FD = fopen($name, 'w') or die ("can't open $name, $php_errormsg\n");
    foreach($array_var as $key=>$value)
    {
      fwrite($FD, "$value \n");
    }
  }
}
?>