1 <?php

     2 

     3 /*

     4  * Snapr

     5  * Version 0.1 beta 1

     6  * Copyright (C) 2007 Dan Fuhry

     7  *

     8  * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License

     9  * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

    10  *

    11  * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied

    12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.

    13  */

    14 

    15 /**

    16  * Generates a random filename for Snapr images.

    17  * @param int $length Optional - length of filename

    18  * @return string

    19  */

    20  

    21 function gallery_make_filename($length = 24)

    22 {

    23   $valid_chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';

    24   $valid_chars = enano_str_split($valid_chars);

    25   $ret = '';

    26   for ( $i = 0; $i < $length; $i++ )

    27   {

    28     $ret .= $valid_chars[mt_rand(0, count($valid_chars)-1)];

    29   }

    30   return $ret;

    31 }

    32 

    33 /**

    34  * Returns the extension of a file.

    35  * @param string file

    36  * @return string

    37  */

    38 

    39 function get_file_extension($file)

    40 {

    41   return substr($file, ( strrpos($file, '.') + 1 ));

    42 }

    43 

    44 /**

    45  * For a given image ID, return the folder hierarchy.

    46  * @param int The image ID

    47  * @return array

    48  */

    49 

    50 function gallery_imgid_to_folder($img_id)

    51 {

    52   global $db, $session, $paths, $template, $plugins; // Common objects

    53   

    54   if ( !is_int($img_id) )

    55     return array();

    56   

    57   $img_id = strval($img_id);

    58   $ret = array();

    59   

    60   $sanity = 0;

    61   $sanity_stack = array();

    62   

    63   while(true)

    64   {

    65     $sanity++;

    66     $q = $db->sql_query('SELECT img_title, img_id, folder_parent FROM '.table_prefix.'gallery WHERE img_id=' . $img_id . ';');

    67     if ( !$q )

    68       $db->_die();

    69     $row = $db->fetchrow();

    70     if ( !$row )

    71     {

    72       break;

    73     }

    74     if ( $sanity > 1 )

    75     {

    76       $ret[] = $row['img_title'];

    77     }

    78     if ( !$row['folder_parent'] )

    79     {

    80       break;

    81     }

    82     if ( in_array($row['img_id'], $sanity_stack) )

    83       return array('Infinite loop');

    84     $sanity_stack[] = $row['img_id'];

    85     $img_id = $row['folder_parent'];

    86   }

    87   return $ret;

    88 }

    89 

    90 /**

    91  * Generates a hierarchy of Gallery folders.

    92  * @return array

    93  */

    94 

    95 function gallery_folder_hierarchy()

    96 {

    97   global $db, $session, $paths, $template, $plugins; // Common objects

    98   

    99   $q = $db->sql_query('SELECT img_id, img_title, folder_parent FROM '.table_prefix.'gallery WHERE is_folder=1');

   100   if ( !$q )

   101     $db->_die();

   102   

   103   if ( $db->numrows() < 1 )

   104   {

   105     return array();

   106   }

   107   

   108   $lookup_table = array();

   109   $hier = array('_id' => 'NULL');

   110   $orphans = array();

   111   $persist_orphans = array();

   112   

   113   while ( $row = $db->fetchrow() )

   114   {

   115     if ( !$row['folder_parent'] )

   116     {

   117       // root-level folder

   118       $hier[ $row['img_title'] ] = array('_id' => $row['img_id']);

   119       $lookup_table[$row['img_id']] =& $hier[ $row['img_title'] ];

   120     }

   121     else if ( $row['folder_parent'] && isset($lookup_table[$row['folder_parent']]) )

   122     {

   123       // child folder, parent is resolved

   124       $lookup_table[ $row['folder_parent'] ][ $row['img_title'] ] = array('_id' => $row['img_id']);

   125       $lookup_table[ $row['img_id'] ] =& $lookup_table[ $row['folder_parent'] ][ $row['img_title'] ];

   126     }

   127     else if ( $row['folder_parent'] && !isset($lookup_table[$row['folder_parent']]) )

   128     {

   129       // child folder, orphan as of yet

   130       $orphans[] = $row;

   131     }

   132   }

   133   

   134   // Resolve orphans

   135   do

   136   {

   137     $persist_orphans = array();

   138     while ( count($orphans) > 0 )

   139     {

   140       $orphan =& $orphans[ ( count($orphans) - 1 ) ];

   141       if ( isset($lookup_table[$orphan['folder_parent']]) )

   142       {

   143         $lookup_table[ $orphan['folder_parent'] ][ $orphan['img_title'] ] = array('_id' => $orphan['img_id']);

   144         $lookup_table[ $orphan['img_id'] ] =& $lookup_table[ $orphan['folder_parent'] ][ $orphan['img_title'] ];

   145       }

   146       else

   147       {

   148         $persist_orphans[] = $orphans[ ( count($orphans) - 1 ) ];

   149         //echo 'BUG: ' . htmlspecialchars($orphan['img_title']) . ' (' . $orphan['img_id'] . ') is an orphan folder (parent is ' . $orphan['folder_parent'] . '); placing in root<br />';

   150         // $hier[ $orphan['img_title'] ] = array();

   151         // $lookup_table[$orphan['img_id']] =& $hier[ $orphan['img_title'] ];

   152       }

   153       unset($orphan, $orphans[ ( count($orphans) - 1 ) ]);

   154     }

   155     $orphans = $persist_orphans;

   156     //die('insanity:<pre>'.print_r($hier,true).print_r($lookup_table,true).print_r($persist_orphans,true).'</pre>');

   157   }

   158   while ( count($persist_orphans) > 0 );

   159   

   160   return $hier;

   161   

   162 }

   163 

   164 /**

   165  * Generates HTML for a folder selector.

   166  * @param string The form field name, defaults to folder_id.

   167  * @param bool Whether to auto-select the root or not. Defaults to true.

   168  * @return string

   169  */

   170 

   171 function gallery_hier_formfield($field_name = 'folder_id', $autosel = true)

   172 {

   173   $hier = gallery_folder_hierarchy();

   174   $img_join      = scriptPath . '/images/icons/joinbottom.gif';

   175   $img_join_term = scriptPath . '/images/icons/join.gif';

   176   $img_line      = scriptPath . '/images/icons/line.gif';

   177   $img_empty     = scriptPath . '/images/icons/empty.gif';

   178   

   179   $html = _gallery_hier_form_inner($hier, '<Root>', $field_name, -1, array(), $img_join, $img_join_term, $img_line, $img_empty, $autosel);

   180   

   181   return $html;

   182 }

   183 

   184 // 

   185 

   186 /**

   187  * Inner loop for form field generator (needs to call itself recursively)

   188  * @access private

   189  */

   190 

   191 function _gallery_hier_form_inner($el, $name, $fname, $depth, $depth_img, $img_join, $img_join_term, $img_line, $img_empty, $sel = false)

   192 {

   193   $html = '';

   194   foreach ( $depth_img as $sw )

   195     $html .= '<img alt="  " src="' . $sw . '" />';

   196   

   197   $html .= '<label><input ' . ( $sel ? 'checked="checked"' : '' ) . ' type="radio" name="' . $fname . '" value="' . $el['_id'] . '" /> ' . htmlspecialchars($name) . '</label><br />';

   198   

   199   if ( count($el) > 1 )

   200   {

   201     // Writing this image logic sucked.

   202     $count = 0;

   203     foreach ( $el as $key => $el_lower )

   204     {

   205       $count++;

   206       if ( $key == '_id' )

   207         continue;

   208       $depth_mod = $depth_img;

   209       $last = ( $count == count($el) );

   210       

   211       for ( $i = 0; $i < count($depth_mod); $i++ )

   212       {

   213         if ( $depth_mod[$i] == $img_join_term || $depth_mod[$i] == $img_empty )

   214           $depth_mod[$i] = $img_empty;

   215         else

   216           $depth_mod[$i] = $img_line;

   217       }

   218       

   219       if ( $last )

   220         $depth_mod[] = $img_join_term;

   221       else

   222         $depth_mod[] = $img_join;

   223       

   224       $html .= _gallery_hier_form_inner($el_lower, $key, $fname, ( $depth + 1 ), $depth_mod, $img_join, $img_join_term, $img_line, $img_empty);

   225     }

   226   }

   227   return $html;

   228 }

   229 

   230 /**

   231  * Returns an array containing the IDs of all of the given folder ID's children. Recursive function.

   232  * @param int ID of folder

   233  */

   234 

   235 function gal_fetch_all_children($id)

   236 {

   237   global $db, $session, $paths, $template, $plugins; // Common objects

   238   

   239   if ( !is_int($id) )

   240   {

   241     die('not int');

   242     return false;

   243   }

   244   

   245   $children = array();

   246   

   247   $q = $db->sql_query('SELECT img_id,is_folder FROM '.table_prefix.'gallery WHERE folder_parent=' . $id . ';');

   248   if ( !$q )

   249     $db->_die();

   250   if ( $db->numrows() < 1 )

   251   {

   252     return $children;

   253   }

   254   $folders = array();

   255   while ( $row = $db->fetchrow() )

   256   {

   257     $children[] = intval($row['img_id']);

   258     if ( $row['is_folder'] == 1 )

   259       $folders[] = intval($row['img_id']);

   260   }

   261   foreach ( $folders as $folder )

   262   {

   263     $grandchildren = gal_fetch_all_children($folder);

   264     if ( $grandchildren === false )

   265     {

   266       return false;

   267     }

   268     $children = array_merge($children, $grandchildren);

   269   }

   270   

   271   return $children;

   272   

   273 }

   274 

   275 /**

   276  * Lists all normal files within a given directory. Recursive function. Can also return the list of directories in the second parameter by reference.

   277  * @param string Directory to search

   278  * @param array Variable in which to store 

   279  * @return array Not multi-depth

   280  */

   281 

   282 function gal_dir_recurse($dir, &$dirlist)

   283 {

   284   $dir_handle = opendir($dir);

   285   if ( !$dir_handle )

   286     return false;

   287   $entries = array();

   288   $dirlist = array();

   289   while ( true )

   290   {

   291     $file = readdir($dir_handle);

   292     if ( !$file )

   293       break;

   294     if ( $file == '.' || $file == '..' )

   295       continue;

   296     $file = $dir . '/' . $file;

   297     if ( is_dir($file) )

   298     {

   299       $children = gal_dir_recurse($file, $dirtemp);

   300       $dirlist[] = $file;

   301       $dirlist = array_merge($dirlist, $dirtemp);

   302       $entries = array_merge($entries, $children);

   303     }

   304     else if ( is_file($file) )

   305     {

   306       $entries[] = $file;

   307     }

   308     else

   309     {

   310       die($file . ' is not a file or directory');

   311     }

   312   }

   313   closedir($dir_handle);

   314   return $entries;

   315 }

   316 

   317 ?>