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started script for storage backend migrations

Browse Source 
todo: GCS

added GCS, no GLOBALS, two methods for saving pastes and comments

use GLOBALS for verbosity again

added getAllPastes() to all storage providers

moved to bin, added --delete options, make use of $store->getAllPastes()

added --delete-* options to help

longopts without -- *sigh*

fixed arguments

drop singleton behaviour to allow multiple backends of the same type simultaneously

remove singleton from Model, collapse loop in migrate.php

comments is not indexed

tests without data singleton

fix

exit if scandir() fails

extended meta doc
This commit is contained in:
Felix J. Ogris
2022-10-28 01:01:02 +02:00
parent d5104a1d63
commit 9a61e8fd48
22 changed files with 658 additions and 465 deletions
Download Patch File Download Diff File Expand all files Collapse all files

353
lib/Data/Database.php
View File

@@ -30,54 +30,45 @@ class Database extends AbstractData
*
* @var array
*/
private static $_cache = array();
private $_cache = array();
/**
* instance of database connection
*
* @access private
* @static
* @var PDO
*/
private static $_db;
private $_db;
/**
* table prefix
*
* @access private
* @static
* @var string
*/
private static $_prefix = '';
private $_prefix = '';
/**
* database type
*
* @access private
* @static
* @var string
*/
private static $_type = '';
private $_type = '';
/**
* get instance of singleton
* instantiates a new Database data backend
*
* @access public
* @static
* @param array $options
* @throws Exception
* @return Database
* @return
*/
public static function getInstance(array $options)
public function __construct(array $options)
{
// if needed initialize the singleton
if (!(self::$_instance instanceof self)) {
self::$_instance = new self;
}
// set table prefix if given
if (array_key_exists('tbl', $options)) {
self::$_prefix = $options['tbl'];
$this->_prefix = $options['tbl'];
}
// initialize the db connection with new options
@@ -94,16 +85,16 @@ class Database extends AbstractData
$db_tables_exist = true;
// setup type and dabase connection
self::$_type = strtolower(
$this->_type = strtolower(
substr($options['dsn'], 0, strpos($options['dsn'], ':'))
);
// MySQL uses backticks to quote identifiers by default,
// tell it to expect ANSI SQL double quotes
if (self::$_type === 'mysql' && defined('PDO::MYSQL_ATTR_INIT_COMMAND')) {
if ($this->_type === 'mysql' && defined('PDO::MYSQL_ATTR_INIT_COMMAND')) {
$options['opt'][PDO::MYSQL_ATTR_INIT_COMMAND] = "SET SESSION sql_mode='ANSI_QUOTES'";
}
$tableQuery = self::_getTableQuery(self::$_type);
self::$_db = new PDO(
$tableQuery = $this->_getTableQuery($this->_type);
$this->_db = new PDO(
$options['dsn'],
$options['usr'],
$options['pwd'],
@@ -111,43 +102,41 @@ class Database extends AbstractData
);
// check if the database contains the required tables
$tables = self::$_db->query($tableQuery)->fetchAll(PDO::FETCH_COLUMN, 0);
$tables = $this->_db->query($tableQuery)->fetchAll(PDO::FETCH_COLUMN, 0);
// create paste table if necessary
if (!in_array(self::_sanitizeIdentifier('paste'), $tables)) {
self::_createPasteTable();
if (!in_array($this->_sanitizeIdentifier('paste'), $tables)) {
$this->_createPasteTable();
$db_tables_exist = false;
}
// create comment table if necessary
if (!in_array(self::_sanitizeIdentifier('comment'), $tables)) {
self::_createCommentTable();
if (!in_array($this->_sanitizeIdentifier('comment'), $tables)) {
$this->_createCommentTable();
$db_tables_exist = false;
}
// create config table if necessary
$db_version = Controller::VERSION;
if (!in_array(self::_sanitizeIdentifier('config'), $tables)) {
self::_createConfigTable();
if (!in_array($this->_sanitizeIdentifier('config'), $tables)) {
$this->_createConfigTable();
// if we only needed to create the config table, the DB is older then 0.22
if ($db_tables_exist) {
$db_version = '0.21';
}
} else {
$db_version = self::_getConfig('VERSION');
$db_version = $this->_getConfig('VERSION');
}
// update database structure if necessary
if (version_compare($db_version, Controller::VERSION, '<')) {
self::_upgradeDatabase($db_version);
$this->_upgradeDatabase($db_version);
}
} else {
throw new Exception(
'Missing configuration for key dsn, usr, pwd or opt in the section model_options, please check your configuration file', 6
);
}
return self::$_instance;
}
/**
@@ -161,12 +150,12 @@ class Database extends AbstractData
public function create($pasteid, array $paste)
{
if (
array_key_exists($pasteid, self::$_cache)
array_key_exists($pasteid, $this->_cache)
) {
if (false !== self::$_cache[$pasteid]) {
if (false !== $this->_cache[$pasteid]) {
return false;
} else {
unset(self::$_cache[$pasteid]);
unset($this->_cache[$pasteid]);
}
}
@@ -175,7 +164,7 @@ class Database extends AbstractData
$attachment = $attachmentname = null;
$meta = $paste['meta'];
$isVersion1 = array_key_exists('data', $paste);
list($createdKey) = self::_getVersionedKeys($isVersion1 ? 1 : 2);
list($createdKey) = $this->_getVersionedKeys($isVersion1 ? 1 : 2);
$created = (int) $meta[$createdKey];
unset($meta[$createdKey], $paste['meta']);
if (array_key_exists('expire_date', $meta)) {
@@ -204,8 +193,8 @@ class Database extends AbstractData
$burnafterreading = $paste['adata'][3];
}
try {
return self::_exec(
'INSERT INTO "' . self::_sanitizeIdentifier('paste') .
return $this->_exec(
'INSERT INTO "' . $this->_sanitizeIdentifier('paste') .
'" VALUES(?,?,?,?,?,?,?,?,?)',
array(
$pasteid,
@@ -233,14 +222,14 @@ class Database extends AbstractData
*/
public function read($pasteid)
{
if (array_key_exists($pasteid, self::$_cache)) {
return self::$_cache[$pasteid];
if (array_key_exists($pasteid, $this->_cache)) {
return $this->_cache[$pasteid];
}
self::$_cache[$pasteid] = false;
$this->_cache[$pasteid] = false;
try {
$paste = self::_select(
'SELECT * FROM "' . self::_sanitizeIdentifier('paste') .
$paste = $this->_select(
'SELECT * FROM "' . $this->_sanitizeIdentifier('paste') .
'" WHERE "dataid" = ?', array($pasteid), true
);
} catch (Exception $e) {
@@ -253,11 +242,11 @@ class Database extends AbstractData
$data = Json::decode($paste['data']);
$isVersion2 = array_key_exists('v', $data) && $data['v'] >= 2;
if ($isVersion2) {
self::$_cache[$pasteid] = $data;
list($createdKey) = self::_getVersionedKeys(2);
$this->_cache[$pasteid] = $data;
list($createdKey) = $this->_getVersionedKeys(2);
} else {
self::$_cache[$pasteid] = array('data' => $paste['data']);
list($createdKey) = self::_getVersionedKeys(1);
$this->_cache[$pasteid] = array('data' => $paste['data']);
list($createdKey) = $this->_getVersionedKeys(1);
}
try {
@@ -266,31 +255,31 @@ class Database extends AbstractData
$paste['meta'] = array();
}
$paste = self::upgradePreV1Format($paste);
self::$_cache[$pasteid]['meta'] = $paste['meta'];
self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste['postdate'];
$this->_cache[$pasteid]['meta'] = $paste['meta'];
$this->_cache[$pasteid]['meta'][$createdKey] = (int) $paste['postdate'];
$expire_date = (int) $paste['expiredate'];
if ($expire_date > 0) {
self::$_cache[$pasteid]['meta']['expire_date'] = $expire_date;
$this->_cache[$pasteid]['meta']['expire_date'] = $expire_date;
}
if ($isVersion2) {
return self::$_cache[$pasteid];
return $this->_cache[$pasteid];
}
// support v1 attachments
if (array_key_exists('attachment', $paste) && !empty($paste['attachment'])) {
self::$_cache[$pasteid]['attachment'] = $paste['attachment'];
$this->_cache[$pasteid]['attachment'] = $paste['attachment'];
if (array_key_exists('attachmentname', $paste) && !empty($paste['attachmentname'])) {
self::$_cache[$pasteid]['attachmentname'] = $paste['attachmentname'];
$this->_cache[$pasteid]['attachmentname'] = $paste['attachmentname'];
}
}
if ($paste['opendiscussion']) {
self::$_cache[$pasteid]['meta']['opendiscussion'] = true;
$this->_cache[$pasteid]['meta']['opendiscussion'] = true;
}
if ($paste['burnafterreading']) {
self::$_cache[$pasteid]['meta']['burnafterreading'] = true;
$this->_cache[$pasteid]['meta']['burnafterreading'] = true;
}
return self::$_cache[$pasteid];
return $this->_cache[$pasteid];
}
/**
@@ -301,18 +290,18 @@ class Database extends AbstractData
*/
public function delete($pasteid)
{
self::_exec(
'DELETE FROM "' . self::_sanitizeIdentifier('paste') .
$this->_exec(
'DELETE FROM "' . $this->_sanitizeIdentifier('paste') .
'" WHERE "dataid" = ?', array($pasteid)
);
self::_exec(
'DELETE FROM "' . self::_sanitizeIdentifier('comment') .
$this->_exec(
'DELETE FROM "' . $this->_sanitizeIdentifier('comment') .
'" WHERE "pasteid" = ?', array($pasteid)
);
if (
array_key_exists($pasteid, self::$_cache)
array_key_exists($pasteid, $this->_cache)
) {
unset(self::$_cache[$pasteid]);
unset($this->_cache[$pasteid]);
}
}
@@ -326,11 +315,11 @@ class Database extends AbstractData
public function exists($pasteid)
{
if (
!array_key_exists($pasteid, self::$_cache)
!array_key_exists($pasteid, $this->_cache)
) {
self::$_cache[$pasteid] = $this->read($pasteid);
$this->_cache[$pasteid] = $this->read($pasteid);
}
return (bool) self::$_cache[$pasteid];
return (bool) $this->_cache[$pasteid];
}
/**
@@ -352,7 +341,7 @@ class Database extends AbstractData
$version = 2;
$data = Json::encode($comment);
}
list($createdKey, $iconKey) = self::_getVersionedKeys($version);
list($createdKey, $iconKey) = $this->_getVersionedKeys($version);
$meta = $comment['meta'];
unset($comment['meta']);
foreach (array('nickname', $iconKey) as $key) {
@@ -361,8 +350,8 @@ class Database extends AbstractData
}
}
try {
return self::_exec(
'INSERT INTO "' . self::_sanitizeIdentifier('comment') .
return $this->_exec(
'INSERT INTO "' . $this->_sanitizeIdentifier('comment') .
'" VALUES(?,?,?,?,?,?,?)',
array(
$commentid,
@@ -388,8 +377,8 @@ class Database extends AbstractData
*/
public function readComments($pasteid)
{
$rows = self::_select(
'SELECT * FROM "' . self::_sanitizeIdentifier('comment') .
$rows = $this->_select(
'SELECT * FROM "' . $this->_sanitizeIdentifier('comment') .
'" WHERE "pasteid" = ?', array($pasteid)
);
@@ -406,7 +395,7 @@ class Database extends AbstractData
$version = 1;
$comments[$i] = array('data' => $row['data']);
}
list($createdKey, $iconKey) = self::_getVersionedKeys($version);
list($createdKey, $iconKey) = $this->_getVersionedKeys($version);
$comments[$i]['id'] = $row['dataid'];
$comments[$i]['parentid'] = $row['parentid'];
$comments[$i]['meta'] = array($createdKey => (int) $row['postdate']);
@@ -433,8 +422,8 @@ class Database extends AbstractData
public function existsComment($pasteid, $parentid, $commentid)
{
try {
return (bool) self::_select(
'SELECT "dataid" FROM "' . self::_sanitizeIdentifier('comment') .
return (bool) $this->_select(
'SELECT "dataid" FROM "' . $this->_sanitizeIdentifier('comment') .
'" WHERE "pasteid" = ? AND "parentid" = ? AND "dataid" = ?',
array($pasteid, $parentid, $commentid), true
);
@@ -455,15 +444,15 @@ class Database extends AbstractData
public function setValue($value, $namespace, $key = '')
{
if ($namespace === 'traffic_limiter') {
self::$_last_cache[$key] = $value;
$this->_last_cache[$key] = $value;
try {
$value = Json::encode(self::$_last_cache);
$value = Json::encode($this->_last_cache);
} catch (Exception $e) {
return false;
}
}
return self::_exec(
'UPDATE "' . self::_sanitizeIdentifier('config') .
return $this->_exec(
'UPDATE "' . $this->_sanitizeIdentifier('config') .
'" SET "value" = ? WHERE "id" = ?',
array($value, strtoupper($namespace))
);
@@ -483,8 +472,8 @@ class Database extends AbstractData
$value = $this->_getConfig($configKey);
if ($value === '') {
// initialize the row, so that setValue can rely on UPDATE queries
self::_exec(
'INSERT INTO "' . self::_sanitizeIdentifier('config') .
$this->_exec(
'INSERT INTO "' . $this->_sanitizeIdentifier('config') .
'" VALUES(?,?)',
array($configKey, '')
);
@@ -492,7 +481,8 @@ class Database extends AbstractData
// migrate filesystem based salt into database
$file = 'data' . DIRECTORY_SEPARATOR . 'salt.php';
if ($namespace === 'salt' && is_readable($file)) {
$value = Filesystem::getInstance(array('dir' => 'data'))->getValue('salt');
$fs = new Filesystem(array('dir' => 'data'));
$value = $fs->getValue('salt');
$this->setValue($value, 'salt');
@unlink($file);
return $value;
@@ -500,12 +490,12 @@ class Database extends AbstractData
}
if ($value && $namespace === 'traffic_limiter') {
try {
self::$_last_cache = Json::decode($value);
$this->_last_cache = Json::decode($value);
} catch (Exception $e) {
self::$_last_cache = array();
$this->_last_cache = array();
}
if (array_key_exists($key, self::$_last_cache)) {
return self::$_last_cache[$key];
if (array_key_exists($key, $this->_last_cache)) {
return $this->_last_cache[$key];
}
}
return (string) $value;
@@ -521,10 +511,10 @@ class Database extends AbstractData
protected function _getExpiredPastes($batchsize)
{
$pastes = array();
$rows = self::_select(
'SELECT "dataid" FROM "' . self::_sanitizeIdentifier('paste') .
$rows = $this->_select(
'SELECT "dataid" FROM "' . $this->_sanitizeIdentifier('paste') .
'" WHERE "expiredate" < ? AND "expiredate" != ? ' .
(self::$_type === 'oci' ? 'FETCH NEXT ? ROWS ONLY' : 'LIMIT ?'),
($this->_type === 'oci' ? 'FETCH NEXT ? ROWS ONLY' : 'LIMIT ?'),
array(time(), 0, $batchsize)
);
if (is_array($rows) && count($rows)) {
@@ -535,19 +525,36 @@ class Database extends AbstractData
return $pastes;
}
/**
* @inheritDoc
*/
public function getAllPastes()
{
$pastes = array();
$rows = $this->_select(
'SELECT "dataid" FROM "' . $this->_sanitizeIdentifier('paste') . '"',
array()
);
if (is_array($rows) && count($rows)) {
foreach ($rows as $row) {
$pastes[] = $row['dataid'];
}
}
return $pastes;
}
/**
* execute a statement
*
* @access private
* @static
* @param string $sql
* @param array $params
* @throws PDOException
* @return bool
*/
private static function _exec($sql, array $params)
private function _exec($sql, array $params)
{
$statement = self::$_db->prepare($sql);
$statement = $this->_db->prepare($sql);
foreach ($params as $key => &$parameter) {
$position = $key + 1;
if (is_int($parameter)) {
@@ -567,20 +574,19 @@ class Database extends AbstractData
* run a select statement
*
* @access private
* @static
* @param string $sql
* @param array $params
* @param bool $firstOnly if only the first row should be returned
* @throws PDOException
* @return array|false
*/
private static function _select($sql, array $params, $firstOnly = false)
private function _select($sql, array $params, $firstOnly = false)
{
$statement = self::$_db->prepare($sql);
$statement = $this->_db->prepare($sql);
$statement->execute($params);
if ($firstOnly) {
$result = $statement->fetch(PDO::FETCH_ASSOC);
} elseif (self::$_type === 'oci') {
} elseif ($this->_type === 'oci') {
// workaround for https://bugs.php.net/bug.php?id=46728
$result = array();
while ($row = $statement->fetch(PDO::FETCH_ASSOC)) {
@@ -590,7 +596,7 @@ class Database extends AbstractData
$result = $statement->fetchAll(PDO::FETCH_ASSOC);
}
$statement->closeCursor();
if (self::$_type === 'oci' && is_array($result)) {
if ($this->_type === 'oci' && is_array($result)) {
// returned CLOB values are streams, convert these into strings
$result = $firstOnly ?
array_map('PrivateBin\Data\Database::_sanitizeClob', $result) :
@@ -603,11 +609,10 @@ class Database extends AbstractData
* get version dependent key names
*
* @access private
* @static
* @param int $version
* @return array
*/
private static function _getVersionedKeys($version)
private function _getVersionedKeys($version)
{
if ($version === 1) {
return array('postdate', 'vizhash');
@@ -619,12 +624,11 @@ class Database extends AbstractData
* get table list query, depending on the database type
*
* @access private
* @static
* @param string $type
* @throws Exception
* @return string
*/
private static function _getTableQuery($type)
private function _getTableQuery($type)
{
switch ($type) {
case 'ibm':
@@ -675,15 +679,14 @@ class Database extends AbstractData
* get a value by key from the config table
*
* @access private
* @static
* @param string $key
* @return string
*/
private static function _getConfig($key)
private function _getConfig($key)
{
try {
$row = self::_select(
'SELECT "value" FROM "' . self::_sanitizeIdentifier('config') .
$row = $this->_select(
'SELECT "value" FROM "' . $this->_sanitizeIdentifier('config') .
'" WHERE "id" = ?', array($key), true
);
} catch (PDOException $e) {
@@ -696,14 +699,13 @@ class Database extends AbstractData
* get the primary key clauses, depending on the database driver
*
* @access private
* @static
* @param string $key
* @return array
*/
private static function _getPrimaryKeyClauses($key = 'dataid')
private function _getPrimaryKeyClauses($key = 'dataid')
{
$main_key = $after_key = '';
switch (self::$_type) {
switch ($this->_type) {
case 'mysql':
case 'oci':
$after_key = ", PRIMARY KEY (\"$key\")";
@@ -721,12 +723,11 @@ class Database extends AbstractData
* PostgreSQL and OCI uses a different API for BLOBs then SQL, hence we use TEXT and CLOB
*
* @access private
* @static
* @return string
*/
private static function _getDataType()
private function _getDataType()
{
switch (self::$_type) {
switch ($this->_type) {
case 'oci':
return 'CLOB';
case 'pgsql':
@@ -742,12 +743,11 @@ class Database extends AbstractData
* PostgreSQL and OCI use different APIs for BLOBs then SQL, hence we use TEXT and CLOB
*
* @access private
* @static
* @return string
*/
private static function _getAttachmentType()
private function _getAttachmentType()
{
switch (self::$_type) {
switch ($this->_type) {
case 'oci':
return 'CLOB';
case 'pgsql':
@@ -763,12 +763,11 @@ class Database extends AbstractData
* OCI doesn't accept TEXT so it has to be VARCHAR2(4000)
*
* @access private
* @static
* @return string
*/
private static function _getMetaType()
private function _getMetaType()
{
switch (self::$_type) {
switch ($this->_type) {
case 'oci':
return 'VARCHAR2(4000)';
default:
@@ -780,16 +779,15 @@ class Database extends AbstractData
* create the paste table
*
* @access private
* @static
*/
private static function _createPasteTable()
private function _createPasteTable()
{
list($main_key, $after_key) = self::_getPrimaryKeyClauses();
$dataType = self::_getDataType();
$attachmentType = self::_getAttachmentType();
$metaType = self::_getMetaType();
self::$_db->exec(
'CREATE TABLE "' . self::_sanitizeIdentifier('paste') . '" ( ' .
list($main_key, $after_key) = $this->_getPrimaryKeyClauses();
$dataType = $this->_getDataType();
$attachmentType = $this->_getAttachmentType();
$metaType = $this->_getMetaType();
$this->_db->exec(
'CREATE TABLE "' . $this->_sanitizeIdentifier('paste') . '" ( ' .
"\"dataid\" CHAR(16) NOT NULL$main_key, " .
"\"data\" $attachmentType, " .
'"postdate" INT, ' .
@@ -806,14 +804,13 @@ class Database extends AbstractData
* create the paste table
*
* @access private
* @static
*/
private static function _createCommentTable()
private function _createCommentTable()
{
list($main_key, $after_key) = self::_getPrimaryKeyClauses();
$dataType = self::_getDataType();
self::$_db->exec(
'CREATE TABLE "' . self::_sanitizeIdentifier('comment') . '" ( ' .
list($main_key, $after_key) = $this->_getPrimaryKeyClauses();
$dataType = $this->_getDataType();
$this->_db->exec(
'CREATE TABLE "' . $this->_sanitizeIdentifier('comment') . '" ( ' .
"\"dataid\" CHAR(16) NOT NULL$main_key, " .
'"pasteid" CHAR(16), ' .
'"parentid" CHAR(16), ' .
@@ -822,15 +819,15 @@ class Database extends AbstractData
"\"vizhash\" $dataType, " .
"\"postdate\" INT$after_key )"
);
if (self::$_type === 'oci') {
self::$_db->exec(
if ($this->_type === 'oci') {
$this->_db->exec(
'declare
already_exists exception;
columns_indexed exception;
pragma exception_init( already_exists, -955 );
pragma exception_init(columns_indexed, -1408);
begin
execute immediate \'create index "comment_parent" on "' . self::_sanitizeIdentifier('comment') . '" ("pasteid")\';
execute immediate \'create index "comment_parent" on "' . $this->_sanitizeIdentifier('comment') . '" ("pasteid")\';
exception
when already_exists or columns_indexed then
NULL;
@@ -838,10 +835,10 @@ class Database extends AbstractData
);
} else {
// CREATE INDEX IF NOT EXISTS not supported as of Oracle MySQL <= 8.0
self::$_db->exec(
$this->_db->exec(
'CREATE INDEX "' .
self::_sanitizeIdentifier('comment_parent') . '" ON "' .
self::_sanitizeIdentifier('comment') . '" ("pasteid")'
$this->_sanitizeIdentifier('comment_parent') . '" ON "' .
$this->_sanitizeIdentifier('comment') . '" ("pasteid")'
);
}
}
@@ -850,19 +847,18 @@ class Database extends AbstractData
* create the paste table
*
* @access private
* @static
*/
private static function _createConfigTable()
private function _createConfigTable()
{
list($main_key, $after_key) = self::_getPrimaryKeyClauses('id');
$charType = self::$_type === 'oci' ? 'VARCHAR2(16)' : 'CHAR(16)';
$textType = self::_getMetaType();
self::$_db->exec(
'CREATE TABLE "' . self::_sanitizeIdentifier('config') .
list($main_key, $after_key) = $this->_getPrimaryKeyClauses('id');
$charType = $this->_type === 'oci' ? 'VARCHAR2(16)' : 'CHAR(16)';
$textType = $this->_getMetaType();
$this->_db->exec(
'CREATE TABLE "' . $this->_sanitizeIdentifier('config') .
"\" ( \"id\" $charType NOT NULL$main_key, \"value\" $textType$after_key )"
);
self::_exec(
'INSERT INTO "' . self::_sanitizeIdentifier('config') .
$this->_exec(
'INSERT INTO "' . $this->_sanitizeIdentifier('config') .
'" VALUES(?,?)',
array('VERSION', Controller::VERSION)
);
@@ -874,11 +870,10 @@ class Database extends AbstractData
* From: https://stackoverflow.com/questions/36200534/pdo-oci-into-a-clob-field
*
* @access public
* @static
* @param int|string|resource $value
* @return int|string
*/
public static function _sanitizeClob($value)
public function _sanitizeClob($value)
{
if (is_resource($value)) {
$value = stream_get_contents($value);
@@ -890,90 +885,88 @@ class Database extends AbstractData
* sanitizes identifiers
*
* @access private
* @static
* @param string $identifier
* @return string
*/
private static function _sanitizeIdentifier($identifier)
private function _sanitizeIdentifier($identifier)
{
return preg_replace('/[^A-Za-z0-9_]+/', '', self::$_prefix . $identifier);
return preg_replace('/[^A-Za-z0-9_]+/', '', $this->_prefix . $identifier);
}
/**
* upgrade the database schema from an old version
*
* @access private
* @static
* @param string $oldversion
*/
private static function _upgradeDatabase($oldversion)
private function _upgradeDatabase($oldversion)
{
$dataType = self::_getDataType();
$attachmentType = self::_getAttachmentType();
$dataType = $this->_getDataType();
$attachmentType = $this->_getAttachmentType();
switch ($oldversion) {
case '0.21':
// create the meta column if necessary (pre 0.21 change)
try {
self::$_db->exec(
'SELECT "meta" FROM "' . self::_sanitizeIdentifier('paste') . '" ' .
(self::$_type === 'oci' ? 'FETCH NEXT 1 ROWS ONLY' : 'LIMIT 1')
$this->_db->exec(
'SELECT "meta" FROM "' . $this->_sanitizeIdentifier('paste') . '" ' .
($this->_type === 'oci' ? 'FETCH NEXT 1 ROWS ONLY' : 'LIMIT 1')
);
} catch (PDOException $e) {
self::$_db->exec('ALTER TABLE "' . self::_sanitizeIdentifier('paste') . '" ADD COLUMN "meta" TEXT');
$this->_db->exec('ALTER TABLE "' . $this->_sanitizeIdentifier('paste') . '" ADD COLUMN "meta" TEXT');
}
// SQLite only allows one ALTER statement at a time...
self::$_db->exec(
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') .
$this->_db->exec(
'ALTER TABLE "' . $this->_sanitizeIdentifier('paste') .
"\" ADD COLUMN \"attachment\" $attachmentType"
);
self::$_db->exec(
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') . "\" ADD COLUMN \"attachmentname\" $dataType"
$this->_db->exec(
'ALTER TABLE "' . $this->_sanitizeIdentifier('paste') . "\" ADD COLUMN \"attachmentname\" $dataType"
);
// SQLite doesn't support MODIFY, but it allows TEXT of similar
// size as BLOB, so there is no need to change it there
if (self::$_type !== 'sqlite') {
self::$_db->exec(
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') .
if ($this->_type !== 'sqlite') {
$this->_db->exec(
'ALTER TABLE "' . $this->_sanitizeIdentifier('paste') .
"\" ADD PRIMARY KEY (\"dataid\"), MODIFY COLUMN \"data\" $dataType"
);
self::$_db->exec(
'ALTER TABLE "' . self::_sanitizeIdentifier('comment') .
$this->_db->exec(
'ALTER TABLE "' . $this->_sanitizeIdentifier('comment') .
"\" ADD PRIMARY KEY (\"dataid\"), MODIFY COLUMN \"data\" $dataType, " .
"MODIFY COLUMN \"nickname\" $dataType, MODIFY COLUMN \"vizhash\" $dataType"
);
} else {
self::$_db->exec(
$this->_db->exec(
'CREATE UNIQUE INDEX IF NOT EXISTS "' .
self::_sanitizeIdentifier('paste_dataid') . '" ON "' .
self::_sanitizeIdentifier('paste') . '" ("dataid")'
$this->_sanitizeIdentifier('paste_dataid') . '" ON "' .
$this->_sanitizeIdentifier('paste') . '" ("dataid")'
);
self::$_db->exec(
$this->_db->exec(
'CREATE UNIQUE INDEX IF NOT EXISTS "' .
self::_sanitizeIdentifier('comment_dataid') . '" ON "' .
self::_sanitizeIdentifier('comment') . '" ("dataid")'
$this->_sanitizeIdentifier('comment_dataid') . '" ON "' .
$this->_sanitizeIdentifier('comment') . '" ("dataid")'
);
}
// CREATE INDEX IF NOT EXISTS not supported as of Oracle MySQL <= 8.0
self::$_db->exec(
$this->_db->exec(
'CREATE INDEX "' .
self::_sanitizeIdentifier('comment_parent') . '" ON "' .
self::_sanitizeIdentifier('comment') . '" ("pasteid")'
$this->_sanitizeIdentifier('comment_parent') . '" ON "' .
$this->_sanitizeIdentifier('comment') . '" ("pasteid")'
);
// no break, continue with updates for 0.22 and later
case '1.3':
// SQLite doesn't support MODIFY, but it allows TEXT of similar
// size as BLOB and PostgreSQL uses TEXT, so there is no need
// to change it there
if (self::$_type !== 'sqlite' && self::$_type !== 'pgsql') {
self::$_db->exec(
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') .
if ($this->_type !== 'sqlite' && $this->_type !== 'pgsql') {
$this->_db->exec(
'ALTER TABLE "' . $this->_sanitizeIdentifier('paste') .
"\" MODIFY COLUMN \"data\" $attachmentType"
);
}
// no break, continue with updates for all newer versions
default:
self::_exec(
'UPDATE "' . self::_sanitizeIdentifier('config') .
$this->_exec(
'UPDATE "' . $this->_sanitizeIdentifier('config') .
'" SET "value" = ? WHERE "id" = ?',
array(Controller::VERSION, 'VERSION')
);