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Diffstat (limited to 'engine/lib/upgrades/2009102801.php')
| -rw-r--r-- | engine/lib/upgrades/2009102801.php | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/engine/lib/upgrades/2009102801.php b/engine/lib/upgrades/2009102801.php new file mode 100644 index 000000000..3ad113fb2 --- /dev/null +++ b/engine/lib/upgrades/2009102801.php @@ -0,0 +1,222 @@ +<?php + +/** + * Move user's data directories from using username to registration date + */ + +/** + * Generates a file matrix like Elgg 1.0 did + * + * @param string $username Username of user + * + * @return string File matrix path + */ +function file_matrix_1_0($username) { + $matrix = ""; + + $len = strlen($username); + if ($len > 5) { + $len = 5; + } + + for ($n = 0; $n < $len; $n++) { + if (ctype_alnum($username[$n])) { + $matrix .= $username[$n] . "/"; + } + } + + return $matrix . $username . "/"; +} + + +/** + * Generate a file matrix like Elgg 1.1, 1.2 and 1.5 + * + * @param string $filename The filename + * + * @return string + */ +function file_matrix_1_1($filename) { + $matrix = ""; + + $name = $filename; + $filename = mb_str_split($filename); + if (!$filename) { + return false; + } + + $len = count($filename); + if ($len > 5) { + $len = 5; + } + + for ($n = 0; $n < $len; $n++) { + $matrix .= $filename[$n] . "/"; + } + + return $matrix . $name . "/"; +} + +/** + * Handle splitting multibyte strings + * + * @param string $string String to split. + * @param string $charset Charset to use. + * + * @return array|false + */ +function mb_str_split($string, $charset = 'UTF8') { + if (is_callable('mb_substr')) { + $length = mb_strlen($string); + $array = array(); + + while ($length) { + $array[] = mb_substr($string, 0, 1, $charset); + $string = mb_substr($string, 1, $length, $charset); + + $length = mb_strlen($string); + } + + return $array; + } else { + return str_split($string); + } + + return false; +} + + +/** + * 1.6 style file matrix + * + * @param string $filename The filename + * + * @return string + */ +function file_matrix_1_6($filename) { + $invalid_fs_chars = '*\'\\/"!$%^&*.%(){}[]#~?<>;|¬`@-+='; + + $matrix = ""; + + $name = $filename; + $filename = mb_str_split($filename); + if (!$filename) { + return false; + } + + $len = count($filename); + if ($len > 5) { + $len = 5; + } + + for ($n = 0; $n < $len; $n++) { + + // Prevent a matrix being formed with unsafe characters + $char = $filename[$n]; + if (strpos($invalid_fs_chars, $char) !== false) { + $char = '_'; + } + + $matrix .= $char . "/"; + } + + return $matrix . $name . "/"; +} + + +/** + * Scans a directory and moves any files from $from to $to + * preserving structure and handling existing paths. + * Will no overwrite files in $to. + * + * TRAILING SLASHES REQUIRED. + * + * @param string $from From dir. + * @param string $to To dir. + * @param bool $move True to move, false to copy. + * @param string $preference to|from If file collisions, which dir has preference. + * + * @return bool + */ +function merge_directories($from, $to, $move = false, $preference = 'to') { + if (!$entries = scandir($from)) { + return false; + } + + // character filtering needs to be elsewhere. + if (!is_dir($to)) { + mkdir($to, 0700, true); + } + + if ($move === true) { + $f = 'rename'; + } else { + $f = 'copy'; + } + + foreach ($entries as $entry) { + if ($entry == '.' || $entry == '..') { + continue; + } + + $from_path = $from . $entry; + $to_path = $to . $entry; + + // check to see if the path exists and is a dir, if so, recurse. + if (is_dir($from_path) && is_dir($to_path)) { + $from_path .= '/'; + $to_path .= '/'; + merge_directories($from_path, $to_path, $move, $preference); + + // since it's a dir that already exists we don't need to move it + continue; + } + + // only move if target doesn't exist or if preference is for the from dir + if (!file_exists($to_path) || $preference == 'from') { + + if ($f($from_path, $to_path)) { + //elgg_dump("Moved/Copied $from_path to $to_path"); + } + } else { + //elgg_dump("Ignoring $from_path -> $to_path"); + } + } +} + +/** + * Create a 1.7 style user file matrix based upon date. + * + * @param int $guid Guid of owner + * + * @return string File matrix path + */ +function user_file_matrix($guid) { + // lookup the entity + $user = get_entity($guid); + if ($user->type != 'user') { + // only to be used for user directories + return FALSE; + } + + $time_created = date('Y/m/d', $user->time_created); + return "$time_created/$user->guid/"; +} + +global $ENTITY_CACHE, $CONFIG; +/** + * Upgrade file locations + */ +$users = mysql_query("SELECT guid, username + FROM {$CONFIG->dbprefix}users_entity WHERE username != ''"); +while ($user = mysql_fetch_object($users)) { + $ENTITY_CACHE = array(); + _elgg_invalidate_query_cache(); + + $to = $CONFIG->dataroot . user_file_matrix($user->guid); + foreach (array('1_0', '1_1', '1_6') as $version) { + $function = "file_matrix_$version"; + $from = $CONFIG->dataroot . $function($user->username); + merge_directories($from, $to, $move = TRUE, $preference = 'from'); + } +} |