Success - index.php created in directory '.$dir."\n"; + $_SESSION['scan_cnt_fold']++; + } + else + { + $error_log .= '
Failure - Can not create index.php in directory '.$dir."\n"; + } + } + else + { + if ($pwg_conf['warning']['protect']) + { + $error_log .= '
Warning - index.php already exists in directory '.$dir."\n"; + $_SESSION['scan_cnt_fold']++; + } + } + } + } + + //~ pwg_log('<<<<< pwg_protect_directories() returns '.var_export($error_log, true).' <<<<<'."\n"); + return $error_log; +} + +/** + * returns file extension (.xxx) + * + * @param string $file + * @return string + */ +function pwg_get_file_extension($file) +{ + //~ pwg_log('>>>>> pwg_get_file_extension($file = '.var_export($file, true).') >>>>>'."\n"); + + $ext = substr(strrchr($file, '.'), 1, strlen ($file)); + + //~ pwg_log('<<<<< pwg_get_file_extension() returns '.var_export($ext, true).' <<<<<'."\n"); + return $ext; +} + +/** + * completes directory list of supported files and returns error logs + * + * @param string $directory + * @return string + */ +function pwg_get_file_list($directory) +{ + //~ pwg_log('>>>>> pwg_get_file_list($directory = '.var_export($directory, true).') >>>>>'."\n"); + + global $conf, $pwg_conf; + + $errorLog = ''; + $dir = opendir($directory); + while (($file = readdir($dir)) !== false) + { + switch (filetype($directory."/".$file)) + { + case 'file' : + { + if (in_array(pwg_get_file_extension($file), $conf['file_ext'])) + { + // The file pointed is a regular file with a supported extension + array_push($_SESSION['scan_list_file'], $directory.'/'.$file); + //~ pwg_log('--->> Push in $_SESSION[scan_list_file] value "'.$directory.'/'.$file.'"'."\n"); + if (!preg_match('/^[a-zA-Z0-9-_.]+$/', $file)) + { + $errorLog .= '
Failure - Invalid file name for '.$file.' in '.$directory.'';
+ $errorLog .= ' 
> Push in $_SESSION[scan_list_fold] value "'.$directory.'/'.$file.'"'."\n");
+ if (!preg_match('/^[a-zA-Z0-9-_.]+$/', $file))
+ {
+ $errorLog .= ' Failure - Invalid directory name for '.$directory.'/'.$file.'';
+ $errorLog .= ' >>>> pwg_get_moment() >>>>>'."\n");
+
$t1 = explode(' ', microtime());
$t2 = explode('.', $t1[0]);
$t2 = $t1[1].'.'.$t2[1];
+
+ //~ pwg_log('<<<<< pwg_get_moment() returns '.var_export($t2, true).' <<<<<'."\n");
return $t2;
}
/**
- * returns the number of seconds (with 3 decimals precision) between the
- * start time and the end time given.
+ * return true if HTTP_REFERER and PHP_SELF are similar
*
- * @param float start
- * @param float end
- * @return void
+ * return boolean
*/
-function get_elapsed_time($start, $end)
+function pwg_referer_is_me()
{
- return number_format($end - $start, 3, '.', ' ').' s';
+ //~ pwg_log('>>>>> pwg_referer_is_me() >>>>>'."\n");
+
+ $response = false;
+ $server = 'http://'.$_SERVER['SERVER_NAME'].$_SERVER['PHP_SELF'];
+ $caller = $_SERVER['HTTP_REFERER'];
+
+ if (strcasecmp($server, $caller) == 0) {
+ $response = true;
+ }
+
+ //~ pwg_log('<<<<< pwg_referer_is_me() returns '.var_export($response, true).' <<<<<'."\n");
+ return $response;
}
-/**
- * returns an array with all picture files according to $conf['file_ext']
- *
- * @param string $dir
- * @return array
- */
-function get_pwg_files($dir)
-{
- global $conf;
+// +-----------------------------------------------------------------------+
+// | pwg_'.$conf['version'].''."\n";
+ $g_footer = '
'."\n";
+ }
+ else
+ {
+ // compare version in GET parameter with $conf['version']
+ if ($g_message == '1')
{
- while ($file = readdir($opendir))
- {
- if (in_array(get_extension($file), $conf['picture_ext'])
- and substr($file,0,$prefix_length) == $conf['prefix_thumbnail'])
- {
- array_push($thumbnails, $file);
- }
- }
+ exit('PWG-INFO-2: test successful'); + } + else + { + exit('
PWG-ERROR-4: PhpWebGallery versions differs'); } } - return $thumbnails; + + //~ pwg_log('<<<<< pwg_test_exit() <<<<<'."\n"); } -/** - * returns an array with representative picture files of a directory - * according to $conf['picture_ext'] - * - * @param string $dir - * @return array - */ -function get_representative_files($dir) +function pwg_clean_start() { - global $conf; - - $pictures = array(); - if (is_dir($dir.'/pwg_representative')) + //~ pwg_log('>>>>> pwg_clean_start() >>>>>'."\n"); + + global $g_message; + + if(@unlink('./listing.xml')) { - if ($opendir = opendir($dir.'/pwg_representative')) + $g_message = '1'; + } + else + { + $g_message = '0'; + } + + $_SESSION['scan_step'] = 'exit'; + + //~ pwg_log('<<<<< pwg_clean_start() <<<<<'."\n"); +} + +function pwg_clean_exit() +{ + //~ pwg_log('>>>>> pwg_clean_exit() >>>>>'."\n"); + + global $g_header, $g_message, $g_footer, $conf, $pwg_conf; + + if(pwg_referer_is_me()) + { + $g_header = ' : Clean'; + if ($g_message == '1') { - while ($file = readdir($opendir)) - { - if (in_array(get_extension($file), $conf['picture_ext'])) - { - array_push($pictures, $file); - } - } + $g_message = '
Success - listing.xml file deleted'."\n";
+ }
+ else
+ {
+ $g_message = ' Failure - listing.xml does not exist or is read only'."\n";
+ }
+ $g_footer = '';
+ }
+ else
+ {
+ if ($g_message == '1')
+ {
+ exit('PWG-INFO-3 : listing.xml file deleted'); + } + else + { + exit('
PWG-ERROR-3 : listing.xml does not exist'); } } - return $pictures; + + //~ pwg_log('<<<<< pwg_clean_exit() <<<<<'."\n"); } -/** - * returns an array with high quality/resolution picture files of a directory - * according to $conf['picture_ext'] - * - * @param string $dir - * @return array - */ -function get_high_files($dir) +function pwg_protect_start() { - global $conf; - - $pictures = array(); - if (is_dir($dir.'/pwg_high')) + //~ pwg_log('>>>>> pwg_protect_start() >>>>>'."\n"); + + $_SESSION['scan_logs'] = pwg_get_file_list('.'); + sort($_SESSION['scan_list_fold']); + + // Erase first file list because root directory does not contain images. + $_SESSION['scan_list_file'] = array(); + + // What are we doing at next step + if(count($_SESSION['scan_list_fold']) > 0) { - if ($opendir = opendir($dir.'/pwg_high')) + $_SESSION['scan_step'] = 'list'; + } + else + { + $_SESSION['scan_step'] = 'stop'; + } + + //~ pwg_log('<<<<< pwg_protect_start() <<<<<'."\n"); +} + +function pwg_protect_list() +{ + //~ pwg_log('>>>>> pwg_protect_list() >>>>>'."\n"); + + // Get list of files and directories + $_SESSION['scan_logs'] .= pwg_get_file_list($_SESSION['scan_list_fold'][0]); + sort($_SESSION['scan_list_fold']); + + // Delete unused file list + $_SESSION['scan_list_file'] = array(); + + // Position next step + $_SESSION['scan_step'] = 'scan'; + + //~ pwg_log('<<<<< pwg_protect_list() <<<<<'."\n"); +} + +function pwg_protect_scan() +{ + //~ pwg_log('>>>>> pwg_protect_scan() >>>>>'."\n"); + + $_SESSION['scan_logs'] .= pwg_protect_directories($_SESSION['scan_list_fold'][0]); + + if (isset($_SESSION['scan_list_fold'][1])) + { + array_shift($_SESSION['scan_list_fold']); + $_SESSION['scan_step'] = 'list'; + } + else + { + $_SESSION['scan_step'] = 'stop'; + } + + //~ pwg_log('<<<<< pwg_protect_scan() <<<<<'."\n"); +} + +function pwg_protect_stop() +{ + //~ pwg_log('>>>>> pwg_protect_stop() >>>>>'."\n"); + + global $g_header, $g_message, $g_footer, $pwg_conf; + + $time_elapsed = number_format(pwg_get_moment() - $_SESSION['scan_time'], 3, '.', ' '); + + $g_header = ' : Protect'; + $g_message = '
'."\n".$_SESSION['scan_logs'].'
'."\n";
+ $g_message .= ' '.$_SESSION['scan_cnt_fold'].' directories protectedGallery protected in :
';
+ $g_footer = ''.$time_elapsed.' s';
+
+ // What are we doing at next step
+ $_SESSION['scan_step'] = 'exit';
+
+ //~ pwg_log('<<<<< pwg_protect_stop() <<<<<'."\n");
+}
+
+function pwg_generate_start()
+{
+ //~ pwg_log('>>>>> pwg_generate_start() >>>>>'."\n");
+ //~ pwg_log("GENARATE start >>>\n".var_export($_SESSION['scan_list_fold'], true)."\n".var_export($_SESSION['scan_list_file'], true)."\nGENERATE start >>>\n");
+
+ global $g_listing, $conf;
+
+ // Flush line '."\n".$_SESSION['scan_logs'].'
'."\n";
+ $g_message .= ' '.$_SESSION['scan_cnt_fold'].' directories parsed'."\n"; + $g_message .= '
'.$_SESSION['scan_cnt_file'].' files scannedView listing.xml
'."\n";
+ $g_message .= ' Listing generated in :
';
+ $g_footer = ''.$time_elapsed.' s';
+
+ // What are we doing at next step
+ $_SESSION['scan_step'] = 'exit';
+
+ //~ pwg_log("GENARATE stop <<<\n".var_export($_SESSION['scan_list_fold'], true)."\n".var_export($_SESSION['scan_list_file'], true)."\nGENERATE stop <<<\n");
+ //~ pwg_log('<<<<< pwg_generate_stop() <<<<<'."\n");
+}
+
+// +-----------------------------------------------------------------------+
+// | ALWAYS CALLED FUNCTIONS |
+// +-----------------------------------------------------------------------+
+
/**
- * search in $basedir the sub-directories and calls get_pictures
+ * This function check step and time ellapsed to determine end of loop
*
- * @return void
+ * @return bool
*/
-function get_dirs($basedir, $indent, $level)
+function pwg_continue()
{
- $fs_dirs = array();
- $dirs = "";
- global $conf_safe_mode;
-
- // Refresh the max_execution_time to avoid timout error
- // By default time to scan a directory (without subdirs) is fixed to 30 seconds
- if (!$conf_safe_mode)
+ //~ pwg_log('>>>>> pwg_continue() >>>>>'."\n");
+
+ global $conf, $pwg_conf, $g_refresh, $g_header, $g_message, $g_footer, $start_time;
+
+ if (!isset($_SESSION['scan_step']) or $_SESSION['scan_step'] == 'exit')
{
- set_time_limit(30);
+ // evident end of process
+ $return = false;
}
-
- if ($opendir = opendir($basedir))
+ else
{
- while ($file = readdir($opendir))
+ if ($pwg_conf['safe_mode'])
{
- if ($file != '.'
- and $file != '..'
- and $file != '.svn'
- and $file != 'thumbnail'
- and $file != 'pwg_high'
- and $file != 'pwg_representative'
- and is_dir ($basedir.'/'.$file))
+ // can not reset the time
+ $time_elapsed = pwg_get_moment() - $start_time;
+ if ($time_elapsed < $conf['max_execution_time'])
{
- array_push($fs_dirs, $file);
- if (!preg_match('/^[a-zA-Z0-9-_.]+$/', $file))
- {
- echo 'PWG-WARNING-1: "'.$file.'" : ';
- echo 'The name of the directory should be composed of ';
- echo 'letters, figures, "-", "_" or "." ONLY';
- echo "\n";
- }
- }
- }
- }
- // write of the dirs
- foreach ($fs_dirs as $fs_dir)
- {
- $dirs.= "\n".$indent.''.$_SESSION['scan_cnt_fold'].' directories scanned'."\n"; } - - if ( in_array($fs_file, $fs_highs) ) + if ($_SESSION['scan_cnt_file'] != 0) { - $element['has_high'] = 'true'; + $g_message .= '
'.$_SESSION['scan_cnt_file'].' files scanned'."\n"; } - - if ($conf['use_exif']) + $nb = count($_SESSION['scan_list_fold']); + if ($nb > 0) { - // Verify activation of exif module - if (extension_loaded('exif')) - { - if ($exif = read_exif_data($dir.'/'.$fs_file)) - { - foreach ($conf['use_exif_mapping'] as $pwg_key => $exif_key ) - { - if (isset($exif[$exif_key])) - { - if ( in_array($pwg_key, array('date_creation','date_available') ) ) - { - if (preg_match('/^(\d{4}):(\d{2}):(\d{2})/' - ,$exif[$exif_key] - ,$matches)) - { - $element[$pwg_key] = - $matches[1].'-'.$matches[2].'-'.$matches[3]; - } - } - else - { - $element[$pwg_key] = $exif[$exif_key]; - } - } - } - } - } + $g_message .= '
'.$nb.' directories to scan'."\n"; } - - if ($conf['use_iptc']) + $nb = count($_SESSION['scan_list_file']); + if ($nb > 0) { - $iptc = get_sync_iptc_data($dir.'/'.$fs_file); - if (count($iptc) > 0) - { - foreach (array_keys($iptc) as $key) - { - $element[$key] = $iptc[$key]; - } - } + $g_message .= '
'.$nb.' files to scan'."\n"; } - - array_push($elements, $element); - } - else - { - echo 'PWG-ERROR-1: The thumbnail is missing for '.$dir.'/'.$fs_file; - echo '-> '.$dir.'/thumbnail/'; - echo $conf['prefix_thumbnail'].$file_wo_ext.'.xxx'; - echo ' ("xxx" can be : '; - echo implode(', ', $conf['picture_ext']); - echo ')'."\n"; + $g_message .= '
Time elapsed :
';
+ $g_footer = ''.$formated_time.' s
'."\n";
+
+ $return = false;
}
}
else
{
- foreach ($conf['picture_ext'] as $ext)
- {
- $candidate = $file_wo_ext.'.'.$ext;
- if (!in_array($candidate, $fs_representatives))
- {
- continue;
- }
- else
- {
- $element['representative_ext'] = $ext;
- break;
- }
- }
-
- array_push($elements, $element);
+ // reset the time
+ set_time_limit(intval(ini_get('max_execution_time')));
+ $return = true;
}
}
+ //~ pwg_log('<<<<< pwg_continue() returns '.var_export($return, true).' <<<<<'."\n");
+
+ return $return;
+}
- $xml = "\n".$indent.''."\n";
+ $_SESSION['scan_step'] = 'exit';
+ //~ pwg_log('<<<<< pwg_init() failure <<<<<'."\n");
+ return;
+ }
+ else
+ {
+ fwrite($fp, session_id()); // Writing session_id to trace lock
+ fclose($fp);
+ $_SESSION['scan_step'] = 'init';
+ }
+ }
+
+ // Verify and backup parameter action. This backup will be removed during step 'exit'
+ if (isset($_REQUEST['action']))
+ {
+ if (in_array($_REQUEST['action'], $pwg_conf['scan_action']))
+ {
+ if (isset($_SESSION['scan_action']))
{
- $xml.= ' '.$attribute.'="'.$element{$attribute}.'"';
+ if ($_SESSION['scan_action'] != $_REQUEST['action'])
+ {
+ // Fatal error
+ $g_message = ' Failure - Parameter action differs between url and session';
+ $g_message .= "\n";
+ $g_footer = ''."\n";
+ $_SESSION['scan_step'] = 'exit';
+ //~ pwg_log('<<<<< pwg_init() failure <<<<<'."\n");
+ return;
+ }
+ }
+ else
+ {
+ $_SESSION['scan_action'] = $_REQUEST['action'];
}
}
- $xml.= ' />';
+ else
+ {
+ // Fatal error
+ $g_message = ' Failure - Problem with action parameter';
+ $g_message .= ' ';
+ $g_message .= "\n";
+ $g_footer = ''."\n";
+ $_SESSION['scan_step'] = 'exit';
+ //~ pwg_log('<<<<< pwg_init() failure <<<<<'."\n");
+ return;
+ }
}
- $xml.= "\n".$indent.'- '."\n";
+ $g_message .= '
- Test '."\n"; + $g_message .= '
- Clean '."\n"; + $g_message .= '
- Listing '."\n"; + $g_message .= '
- Protect '."\n"; + $g_message .= '
'."\n";
+ $_SESSION['scan_step'] = 'exit';
+ }
+
+ // Open listing.xml
+ if ($_SESSION['scan_action'] == 'generate')
+ {
+ $mode = ($_SESSION['scan_step'] == 'init') ? 'w' : 'a'; // Erase old listing.xml at the beginning of generation (mode w)
+ $g_listing = @fopen('listing.xml', $mode);
+ if ($g_listing === false)
+ {
+ $g_header = $_SESSION['scan_action'];
+ $g_message = ' Failure - Can not write file listing.xml';
+ $g_message .= "\n";
+ $g_footer = ''."\n";
+ $_SESSION['scan_step'] = 'exit';
+ //~ pwg_log('<<<<< pwg_init() failure <<<<<'."\n");
+ return;
+ }
+ }
+
+ // Initializing session counters. This counters will be completely unset during step 'exit'
+ if ($_SESSION['scan_step'] == 'init')
+ {
+ $_SESSION['scan_list_file'] = array();
+ $_SESSION['scan_list_fold'] = array();
+ $_SESSION['scan_cnt_file'] = 0;
+ $_SESSION['scan_cnt_fold'] = 0;
+ $_SESSION['scan_time'] = $start_time;
+ $_SESSION['scan_step'] = 'start';
+ $_SESSION['scan_logs'] = '';
+ }
+
+ //~ pwg_log('<<<<< pwg_init() success <<<<<'."\n");
+}
- return $xml;
+/**
+ * This function :
+ * -> Close listing.xml if action is 'generate'
+ * -> Unlock the script
+ * -> Erase session variables
+ *
+ * @return nothing
+ */
+function pwg_exit()
+{
+ //~ pwg_log('>>>>> pwg_exit() >>>>>'."\n");
+
+ global $g_listing;
+
+ // Close XML file
+ if ($_SESSION['scan_action'] == 'generate' and $g_listing != false)
+ {
+ fclose($g_listing);
+ }
+
+ // Unlock script
+ unlink(__FILE__.'.lock');
+
+ // Erase session counters
+ unset($_SESSION['scan_list_file']);
+ unset($_SESSION['scan_list_fold']);
+ unset($_SESSION['scan_cnt_file']);
+ unset($_SESSION['scan_cnt_fold']);
+ unset($_SESSION['scan_time']);
+ unset($_SESSION['scan_step']);
+ $local_action = $_SESSION['scan_action'];
+ unset($_SESSION['scan_action']);
+ unset($_SESSION['scan_logs']);
+
+
+ // Call specific action post process
+ if (is_callable('pwg_'.$local_action.'_exit'))
+ {
+ call_user_func('pwg_'.$local_action.'_exit');
+ }
+
+ //~ pwg_log('<<<<< pwg_exit() <<<<<'."\n");
}
// +-----------------------------------------------------------------------+
// | script |
// +-----------------------------------------------------------------------+
-if (isset($_GET['action']))
-{
- $page['action'] = $_GET['action'];
-}
-else
-{
- $page['action'] = '';
-}
+session_start();
-// Looking at the safe_mode configuration for execution time
-$conf_safe_mode = TRUE;
-if (ini_get('safe_mode') == 0)
-{
- $conf_safe_mode = FALSE;
-}
+$start_time = pwg_get_moment();
-echo '';
-switch ($page['action'])
+// Initializing message for web page
+$g_refresh = '';
+$g_header = '';
+$g_message = '';
+$g_footer = '';
+$g_listing = '';
+
+pwg_init();
+
+while(pwg_continue())
{
- case 'generate' :
+ if (is_callable('pwg_'.$_SESSION['scan_action'].'_'.$_SESSION['scan_step']))
{
- $start = get_moment();
-
- $listing = '
-
- -
- Generate listing.xml
-
-
- -
- Test
-
-
- -
- Clean
-
-
-';
+ $g_header = $_SESSION['scan_action'];
+ $g_message = ' Failure - INTERNAL STEP ERROR : pwg_'.$_SESSION['scan_action'].'_'.$_SESSION['scan_step'].'() undefined';
+ $g_message .= "\n";
+ $g_footer = ''."\n";
+ $_SESSION['scan_step'] = 'exit';
}
}
-echo '
';
+
+if ($_SESSION['scan_step'] == 'exit')
+{
+ pwg_exit();
+}
+
?>
+
+
+
+ Manage distant gallery
+
+
+
+
+
+
+
+
+
+