small verification

[jirafeau_mojo42.git] / lib / functions.php

diff --git a/lib/functions.php b/lib/functions.php
index bb49079768081e381d53752722c5f911ea210620..e48534ed49782c90d1a7696904f44e7189b8d119 100644 (file)
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -17,6 +17,109 @@
  *  You should have received a copy of the GNU Affero General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
  *  You should have received a copy of the GNU Affero General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */

+
+/**
+ * Transform a string in a path by seperating each letters by a '/'.
+  * @return path finishing with a '/'
+ */
+function
+s2p ($s)
+{
+    $p = '';
+    for ($i = 0; $i < strlen ($s); $i++)
+        $p .= $s{$i} . '/';
+    return $p;
+}
+
+/**
+ * Convert base 16 to base 64
+ * @returns A string based on 64 characters (0-9, a-z, A-Z, "-" and "_")
+ */
+function
+base_16_to_64 ($num)
+{
+    $m = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_';
+    $hex2bin = ['0000', # 0
+                '0001', # 1
+                '0010', # 2
+                '0011', # 3
+                '0100', # 4
+                '0101', # 5
+                '0110', # 6
+                '0111', # 7
+                '1000', # 8
+                '1001', # 9
+                '1010', # a
+                '1011', # b
+                '1100', # c
+                '1101', # d
+                '1110', # e
+                '1111']; # f
+    $o = '';    
+    $b = '';
+    $i = 0;
+    # Convert long hex string to bin.
+    $size = strlen ($num);
+    for ($i = 0; $i < $size; $i++)
+        $b .= $hex2bin{hexdec ($num{$i})};
+    # Convert long bin to base 64.
+    $size *= 4;
+    for ($i = $size - 6; $i >= 0; $i -= 6)
+        $o = $m{bindec (substr ($b, $i, 6))} . $o;
+    # Some few bits remaining ?
+    if ($i < 0 && $i > -6)
+        $o = $m{bindec (substr ($b, 0, $i + 6))} . $o;
+    return $o;
+}
+
+function
+jirafeau_human_size ($octets)
+{
+    $u = array ('B', 'KB', 'MB', 'GB', 'TB');
+    $o = max ($octets, 0);
+    $p = min (floor (($o ? log ($o) : 0) / log (1024)), count ($u) - 1);
+    $o /= pow (1024, $p);
+    return round ($o, 1) . $u[$p];
+} 
+
+function
+jirafeau_clean_rm_link ($link)
+{
+    $p = s2p ("$link");
+    if (file_exists (VAR_LINKS . $p . $link))
+        unlink (VAR_LINKS . $p . $link);
+    $parse = VAR_LINKS . $p;
+    $scan = array();
+    while (file_exists ($parse)
+           && ($scan = scandir ($parse))
+           && count ($scan) == 2 // '.' and '..' folders => empty.
+           && basename ($parse) != basename (VAR_LINKS)) 
+    {
+        rmdir ($parse);
+        $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
+    }
+}
+
+function
+jirafeau_clean_rm_file ($md5)
+{
+    $p = s2p ("$md5");
+    if (file_exists (VAR_FILES . $p . $md5))
+        unlink (VAR_FILES . $p . $md5);
+    if (file_exists (VAR_FILES . $p . $md5 . '_count'))
+        unlink (VAR_FILES . $p . $md5 . '_count');
+    $parse = VAR_FILES . $p;
+    $scan = array();
+    while (file_exists ($parse)
+           && ($scan = scandir ($parse))
+           && count ($scan) == 2 // '.' and '..' folders => empty.
+           && basename ($parse) != basename (VAR_FILES)) 
+    {
+        rmdir ($parse);
+        $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
+    }
+}
+

 /**
  * transforms a php.ini string representing a value in an integer
  * @param $value the value from php.ini
 /**
  * transforms a php.ini string representing a value in an integer
  * @param $value the value from php.ini


@@ -46,13 +149,14 @@ function jirafeau_ini_to_bytes ($value)
 
 /**
  * gets the maximum upload size according to php.ini
 
 /**
  * gets the maximum upload size according to php.ini

- * @returns the maximum upload size
+ * @returns the maximum upload size string

  */
 function
 jirafeau_get_max_upload_size ()
 {
  */
 function
 jirafeau_get_max_upload_size ()
 {

-    return min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
-                jirafeau_ini_to_bytes (ini_get ('upload_max_filesize')));
+    return jirafeau_human_size(
+            min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
+                 jirafeau_ini_to_bytes (ini_get ('upload_max_filesize'))));

 }
 
 /**
 }
 
 /**


@@ -67,26 +171,26 @@ jirafeau_upload_errstr ($code)
     {
     case UPLOAD_ERR_INI_SIZE:
     case UPLOAD_ERR_FORM_SIZE:
     {
     case UPLOAD_ERR_INI_SIZE:
     case UPLOAD_ERR_FORM_SIZE:

-        return _('Your file exceeds the maximum authorized file size. ');
+        return t('Your file exceeds the maximum authorized file size. ');

         break;
 
     case UPLOAD_ERR_PARTIAL:
     case UPLOAD_ERR_NO_FILE:
         return
         break;
 
     case UPLOAD_ERR_PARTIAL:
     case UPLOAD_ERR_NO_FILE:
         return

-            _
+            t

             ('Your file was not uploaded correctly. You may succeed in retrying. ');
         break;
 
     case UPLOAD_ERR_NO_TMP_DIR:
     case UPLOAD_ERR_CANT_WRITE:
     case UPLOAD_ERR_EXTENSION:
             ('Your file was not uploaded correctly. You may succeed in retrying. ');
         break;
 
     case UPLOAD_ERR_NO_TMP_DIR:
     case UPLOAD_ERR_CANT_WRITE:
     case UPLOAD_ERR_EXTENSION:

-        return _('Internal error. You may not succeed in retrying. ');
+        return t('Internal error. You may not succeed in retrying. ');

         break;
 
     default:
         break;
     }
         break;
 
     default:
         break;
     }

-    return _('Unknown error. ');
+    return t('Unknown error. ');

 }
 
 /** Remove link and it's file
 }
 
 /** Remove link and it's file


@@ -94,35 +198,76 @@ jirafeau_upload_errstr ($code)
  */
 
 function
  */
 
 function

-jirafeau_delete ($link)
+jirafeau_delete_link ($link)

 {
 {

-    if (!file_exists ( VAR_LINKS . $link))
+    $l = jirafeau_get_link ($link);
+    if (!count ($l))

         return;
 
         return;
 

-    $content = file ( VAR_LINKS . $link);
-    $md5 = trim ($content[5]);
-    unlink ( VAR_LINKS . $link);
+    jirafeau_clean_rm_link ($link);
+
+    $md5 = $l['md5'];
+    $p = s2p ("$md5");

 
     $counter = 1;
 
     $counter = 1;

-    if (file_exists ( VAR_FILES . $md5. '_count'))
+    if (file_exists (VAR_FILES . $p . $md5. '_count'))

     {
     {

-        $content = file ( VAR_FILES . $md5. '_count');
+        $content = file (VAR_FILES . $p . $md5. '_count');

         $counter = trim ($content[0]);
     }
     $counter--;
 
     if ($counter >= 1)
     {
         $counter = trim ($content[0]);
     }
     $counter--;
 
     if ($counter >= 1)
     {

-        $handle = fopen ( VAR_FILES . $md5. '_count', 'w');
+        $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');

         fwrite ($handle, $counter);
         fclose ($handle);
     }
 
         fwrite ($handle, $counter);
         fclose ($handle);
     }
 

-    if ($counter == 0 && file_exists ( VAR_FILES . $md5))
+    if ($counter == 0)
+        jirafeau_clean_rm_file ($md5);
+}
+
+/**
+ * Delete a file and it's links.
+ */
+function
+jirafeau_delete_file ($md5)
+{
+    $count = 0;
+    /* Get all links files. */
+    $stack = array (VAR_LINKS);
+    while (($d = array_shift ($stack)) && $d != NULL)

     {
     {

-        unlink ( VAR_FILES . $md5);
-        unlink ( VAR_FILES . $md5. '_count');
+        $dir = scandir ($d);
+
+        foreach ($dir as $node)
+        {
+            if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+                preg_match ('/\.tmp/i', "$node"))
+                continue;
+            
+            if (is_dir ($d . $node))
+            {
+                /* Push new found directory. */
+                $stack[] = $d . $node . '/';
+            }
+            elseif (is_file ($d . $node))
+            {
+                /* Read link informations. */
+                $l = jirafeau_get_link (basename ($node));
+                if (!count ($l))
+                    continue;
+                if ($l['md5'] == $md5)
+                {
+                    $count++;
+                    jirafeau_delete_link ($node);
+                }   
+            }
+        }

     }
     }

+    jirafeau_clean_rm_file ($md5);
+    return $count;

 }
 
 /**
 }
 
 /**


@@ -131,7 +276,6 @@ jirafeau_delete ($link)
  * @param $one_time_download is the file a one time download ?
  * @param $key if not empty, protect the file with this key
  * @param $time the time of validity of the file
  * @param $one_time_download is the file a one time download ?
  * @param $key if not empty, protect the file with this key
  * @param $time the time of validity of the file

- * @param $cfg the current configuration

  * @param $ip uploader's ip
  * @returns an array containing some information
  *   'error' => information on possible errors
  * @param $ip uploader's ip
  * @returns an array containing some information
  *   'error' => information on possible errors


@@ -139,7 +283,7 @@ jirafeau_delete ($link)
  *   'delete_link' => the link code to delete file
  */
 function
  *   'delete_link' => the link code to delete file
  */
 function

-jirafeau_upload ($file, $one_time_download, $key, $time, $cfg, $ip)
+jirafeau_upload ($file, $one_time_download, $key, $time, $ip)

 {
     if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name']))
     {
 {
     if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name']))
     {


@@ -162,11 +306,13 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $cfg, $ip)
 
     /* does file already exist ? */
     $rc = false;
 
     /* does file already exist ? */
     $rc = false;

-    if (file_exists ( VAR_FILES . $md5))
+    $p = s2p ("$md5");
+    if (file_exists (VAR_FILES . $p .  $md5))

     {
         $rc = unlink ($file['tmp_name']);
     }
     {
         $rc = unlink ($file['tmp_name']);
     }

-    elseif (move_uploaded_file ($file['tmp_name'],  VAR_FILES . $md5))
+    elseif ((file_exists (VAR_FILES . $p) || @mkdir (VAR_FILES . $p, 0755, true))
+            && move_uploaded_file ($file['tmp_name'], VAR_FILES . $p . $md5))

     {
         $rc = true;
     }
     {
         $rc = true;
     }


@@ -175,20 +321,20 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $cfg, $ip)
         return (array(
                  'error' =>
                    array ('has_error' => true,
         return (array(
                  'error' =>
                    array ('has_error' => true,

-                          'why' => _('Internal error during file creation. ')),
+                          'why' => t('Internal error during file creation.')),

                  'link' =>'',
                  'delete_link' => ''));
     }
 
     /* increment or create count file */
     $counter = 0;
                  'link' =>'',
                  'delete_link' => ''));
     }
 
     /* increment or create count file */
     $counter = 0;

-    if (file_exists (VAR_FILES . $md5 . '_count'))
+    if (file_exists (VAR_FILES . $p . $md5 . '_count'))

     {
     {

-        $content = file ( VAR_FILES . $md5. '_count');
+        $content = file (VAR_FILES . $p . $md5. '_count');

         $counter = trim ($content[0]);
     }
     $counter++;
         $counter = trim ($content[0]);
     }
     $counter++;

-    $handle = fopen ( VAR_FILES . $md5. '_count', 'w');
+    $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');

     fwrite ($handle, $counter);
     fclose ($handle);
 
     fwrite ($handle, $counter);
     fclose ($handle);
 


@@ -203,33 +349,36 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $cfg, $ip)
         $password = md5 ($key);
 
     /* create link file */
         $password = md5 ($key);
 
     /* create link file */

-    $link_tmp_name =  VAR_LINKS . $md5.rand (0, 10000) . ' .tmp';
+    $link_tmp_name =  VAR_LINKS . $md5 . rand (0, 10000) . ' .tmp';

     $handle = fopen ($link_tmp_name, 'w');
     fwrite ($handle,
     $handle = fopen ($link_tmp_name, 'w');
     fwrite ($handle,

-            $name . NL. $mime_type . NL. $size . NL. $password . NL. $time . NL . $md5.
-            NL.($one_time_download ? 'O' : 'R') . NL.date ('U') . NL. $ip . NL.
-            $delete_link_code . NL);
+            $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
+            NL . $md5. NL . ($one_time_download ? 'O' : 'R') . NL.date ('U') .
+            NL. $ip . NL. $delete_link_code . NL);

     fclose ($handle);
     fclose ($handle);

-    $md5_link = md5_file ($link_tmp_name);
-    if (!rename ($link_tmp_name,  VAR_LINKS . $md5_link))
+    $md5_link = base_16_to_64 (md5_file ($link_tmp_name));
+    $l = s2p ("$md5_link");
+    if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
+        !rename ($link_tmp_name,  VAR_LINKS . $l . $md5_link))

     {
     {

-        unlink ($link_tmp_name);
+        if (file_exists ($link_tmp_name))
+            unlink ($link_tmp_name);
+        

         $counter--;
         if ($counter >= 1)
         {
         $counter--;
         if ($counter >= 1)
         {

-            $handle = fopen ( VAR_FILES . $md5. '_count', 'w');
+            $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');

             fwrite ($handle, $counter);
             fclose ($handle);
         }
         else
         {
             fwrite ($handle, $counter);
             fclose ($handle);
         }
         else
         {

-            unlink ( VAR_FILES . $md5. '_count');
-            unlink ( VAR_FILES . $md5);
+            jirafeau_clean_rm_file ($md5_link);

         }
         return (array(
                  'error' =>
                    array ('has_error' => true,
         }
         return (array(
                  'error' =>
                    array ('has_error' => true,

-                          'why' => _('Internal error during file creation. ')),
+                          'why' => t('Internal error during file creation. ')),

                  'link' =>'',
                  'delete_link' => ''));
     }
                  'link' =>'',
                  'delete_link' => ''));
     }


@@ -302,4 +451,168 @@ show_errors ()
     }
 }
 
     }
 }
 

+/**
+ * Read link informations
+ * @return array containing informations.
+ */
+function
+jirafeau_get_link ($hash)
+{
+    $out = array ();
+    $link = VAR_LINKS . s2p ("$hash") . $hash;
+
+    if (!file_exists ($link))
+        return $out;
+    
+    $c = file ($link);
+    $out['file_name'] = trim ($c[0]);
+    $out['mime_type'] = trim ($c[1]);
+    $out['file_size'] = trim ($c[2]);
+    $out['key'] = trim ($c[3], NL);
+    $out['time'] = trim ($c[4]);
+    $out['md5'] = trim ($c[5]);
+    $out['onetime'] = trim ($c[6]);
+    $out['upload_date'] = trim ($c[7]);
+    $out['ip'] = trim ($c[8]);
+    $out['link_code'] = trim ($c[9]);
+    
+    return $out;
+}
+
+/**
+ * List files in admin interface.
+ */
+function
+jirafeau_admin_list ($name, $file_hash, $link_hash)
+{
+    echo '<fieldset><legend>';
+    if (!empty ($name))
+        echo t('Filename') . ": $name ";
+    if (!empty ($file_hash))
+        echo t('file') . ": $file_hash ";
+    if (!empty ($link_hash))
+        echo t('link') . ": $link_hash ";
+    if (empty ($name) && empty ($file_hash) && empty ($link_hash))
+        echo t('List all files');
+    echo '</legend>';
+    echo '<table>';
+    echo '<tr>';
+    echo '<td>' . t('Filename') . '</td>';
+    echo '<td>' . t('Type') . '</td>';
+    echo '<td>' . t('Size') . '</td>';
+    echo '<td>' . t('Expire') . '</td>';
+    echo '<td>' . t('Onetime') . '</td>';
+    echo '<td>' . t('Upload date') . '</td>';
+    echo '<td>' . t('Origin') . '</td>';
+    echo '<td>' . t('Action') . '</td>';
+    echo '</tr>';
+
+    /* Get all links files. */
+    $stack = array (VAR_LINKS);
+    while (($d = array_shift ($stack)) && $d != NULL)
+    {
+        $dir = scandir ($d);
+        foreach ($dir as $node)
+        {
+            if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+                preg_match ('/\.tmp/i', "$node"))
+                continue;
+            if (is_dir ($d . $node))
+            {
+                /* Push new found directory. */
+                $stack[] = $d . $node . '/';
+            }
+            elseif (is_file ($d . $node))
+            {
+                /* Read link informations. */
+                $l = jirafeau_get_link ($node);
+                if (!count ($l))
+                    continue;
+
+                /* Filter. */
+                if (!empty ($name) && !preg_match ("/$name/i", $l['file_name']))
+                    continue;
+                if (!empty ($file_hash) && $file_hash != $l['md5'])
+                    continue;
+                if (!empty ($link_hash) && $link_hash != $node)
+                    continue;
+                /* Print link informations. */
+                echo '<tr>';
+                echo '<td>' .
+                '<form action = "admin.php" method = "post">' .
+                '<input type = "hidden" name = "action" value = "download"/>' .
+                '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
+                '<input type = "submit" value = "' . $l['file_name'] . '" />' .
+                '</form>';
+                echo '</td>';
+                echo '<td>' . $l['mime_type'] . '</td>';
+                echo '<td>' . jirafeau_human_size ($l['file_size']) . '</td>';
+                echo '<td>' . ($l['time'] == -1 ? '' : strftime ('%c', $l['time'])) .
+                     '</td>';
+                echo '<td>' . $l['onetime'] . '</td>';
+                echo '<td>' . strftime ('%c', $l['upload_date']) . '</td>';
+                echo '<td>' . $l['ip'] . '</td>';
+                echo '<td>' .
+                '<form action = "admin.php" method = "post">' .
+                '<input type = "hidden" name = "action" value = "delete_link"/>' .
+                '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
+                '<input type = "submit" value = "' . t('Del link') . '" />' .
+                '</form>' .
+                '<form action = "admin.php" method = "post">' .
+                '<input type = "hidden" name = "action" value = "delete_file"/>' .
+                '<input type = "hidden" name = "md5" value = "' . $l['md5'] . '"/>' .
+                '<input type = "submit" value = "' . t('Del file and links') . '" />' .
+                '</form>' .
+                '</td>';
+                echo '</tr>';
+            }
+        }
+    }
+    echo '</table></fieldset>';
+}
+
+/**
+ * Clean expired files.
+ * @return number of cleaned files.
+ */
+function
+jirafeau_admin_clean ()
+{
+    $count = 0;
+    /* Get all links files. */
+    $stack = array (VAR_LINKS);
+    while (($d = array_shift ($stack)) && $d != NULL)
+    {
+        $dir = scandir ($d);
+
+        foreach ($dir as $node)
+        {
+            if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+                preg_match ('/\.tmp/i', "$node"))
+                continue;
+            
+            if (is_dir ($d . $node))
+            {
+                /* Push new found directory. */
+                $stack[] = $d . $node . '/';
+            }
+            elseif (is_file ($d . $node))
+            {
+                /* Read link informations. */
+                $l = jirafeau_get_link (basename ($node));
+                if (!count ($l))
+                    continue;
+                $p = s2p ($l['md5']);
+                if ($l['time'] > 0 && $l['time'] < time () || // expired
+                    !file_exists (VAR_FILES . $p . $l['md5']) || // invalid
+                    !file_exists (VAR_FILES . $p . $l['md5'] . '_count')) // invalid
+                {
+                    jirafeau_delete_link ($node);
+                    $count++;
+                }
+            }
+        }
+    }
+    return $count;
+}

 ?>
 ?>