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generalize OCI handling of queries and results

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El RIDO 2022-01-22 08:45:12 +01:00
parent 041ef7f7a5
commit 2182cdd44f
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4 changed files with 105 additions and 161 deletions
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1
CHANGELOG.md
View File

@ -7,6 +7,7 @@
* ADDED: Opt-out of federated learning of cohorts (FLoC) (#776) * ADDED: Opt-out of federated learning of cohorts (FLoC) (#776)
* ADDED: Configuration option to exempt IPs from the rate-limiter (#787) * ADDED: Configuration option to exempt IPs from the rate-limiter (#787)
* ADDED: Google Cloud Storage backend support (#795) * ADDED: Google Cloud Storage backend support (#795)
* ADDED: Oracle database support (#868)
* CHANGED: Language selection cookie only transmitted over HTTPS (#472) * CHANGED: Language selection cookie only transmitted over HTTPS (#472)
* CHANGED: Upgrading libraries to: random_compat 2.0.20 * CHANGED: Upgrading libraries to: random_compat 2.0.20
* CHANGED: Removed automatic `.ini` configuration file migration (#808) * CHANGED: Removed automatic `.ini` configuration file migration (#808)

1
CREDITS.md
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@ -29,6 +29,7 @@ Sébastien Sauvage - original idea and main developer
* Lucas Savva - configurable config file location, NixOS packaging * Lucas Savva - configurable config file location, NixOS packaging
* rodehoed - option to exempt ips from the rate-limiter * rodehoed - option to exempt ips from the rate-limiter
* Mark van Holsteijn - Google Cloud Storage backend * Mark van Holsteijn - Google Cloud Storage backend
* Austin Huang - Oracle database support
## Translations ## Translations
* Hexalyse - French * Hexalyse - French

242
lib/Data/Database.php
View File

@ -199,31 +199,12 @@ class Database extends AbstractData
$burnafterreading = $paste['adata'][3]; $burnafterreading = $paste['adata'][3];
} }
try { try {
$big_string = $isVersion1 ? $paste['data'] : Json::encode($paste);
$metajson = Json::encode($meta);
if (self::$_type === 'oci') {
// It is not possible to execute in the normal way if strlen($big_string) >= 4000
$stmt = self::$_db->prepare(
'INSERT INTO ' . self::_sanitizeIdentifier('paste') .
' VALUES(?,?,?,?,?,?,?,?,?)'
);
$stmt->bindParam(1, $pasteid);
$stmt->bindParam(2, $big_string, PDO::PARAM_STR, strlen($big_string));
$stmt->bindParam(3, $created, PDO::PARAM_INT);
$stmt->bindParam(4, $expire_date, PDO::PARAM_INT);
$stmt->bindParam(5, $opendiscussion, PDO::PARAM_INT);
$stmt->bindParam(6, $burnafterreading, PDO::PARAM_INT);
$stmt->bindParam(7, $metajson);
$stmt->bindParam(8, $attachment, PDO::PARAM_STR, strlen($attachment));
$stmt->bindParam(9, $attachmentname);
return $stmt->execute();
}
return self::_exec( return self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('paste') . 'INSERT INTO ' . self::_sanitizeIdentifier('paste') .
' VALUES(?,?,?,?,?,?,?,?,?)', ' VALUES(?,?,?,?,?,?,?,?,?)',
array( array(
$pasteid, $pasteid,
$big_string, $isVersion1 ? $paste['data'] : Json::encode($paste),
$created, $created,
$expire_date, $expire_date,
(int) $opendiscussion, (int) $opendiscussion,
@ -252,15 +233,11 @@ class Database extends AbstractData
} }
self::$_cache[$pasteid] = false; self::$_cache[$pasteid] = false;
$rawData = '';
try { try {
$paste = self::_select( $paste = self::_select(
'SELECT * FROM ' . self::_sanitizeIdentifier('paste') . 'SELECT * FROM ' . self::_sanitizeIdentifier('paste') .
' WHERE dataid = ?', array($pasteid), true ' WHERE dataid = ?', array($pasteid), true
); );
if ($paste !== false) {
$rawData = self::$_type === 'oci' ? self::_clob($paste['DATA']) : $paste['data'];
}
} catch (Exception $e) { } catch (Exception $e) {
$paste = false; $paste = false;
} }
@ -268,25 +245,25 @@ class Database extends AbstractData
return false; return false;
} }
// create array // create array
$data = Json::decode($rawData); $data = Json::decode($paste['data']);
$isVersion2 = array_key_exists('v', $data) && $data['v'] >= 2; $isVersion2 = array_key_exists('v', $data) && $data['v'] >= 2;
if ($isVersion2) { if ($isVersion2) {
self::$_cache[$pasteid] = $data; self::$_cache[$pasteid] = $data;
list($createdKey) = self::_getVersionedKeys(2); list($createdKey) = self::_getVersionedKeys(2);
} else { } else {
self::$_cache[$pasteid] = array('data' => $paste[self::_sanitizeColumn('data')]); self::$_cache[$pasteid] = array('data' => $paste['data']);
list($createdKey) = self::_getVersionedKeys(1); list($createdKey) = self::_getVersionedKeys(1);
} }
try { try {
$paste['meta'] = Json::decode($paste[self::_sanitizeColumn('meta')]); $paste['meta'] = Json::decode($paste['meta']);
} catch (Exception $e) { } catch (Exception $e) {
$paste['meta'] = array(); $paste['meta'] = array();
} }
$paste = self::upgradePreV1Format($paste); $paste = self::upgradePreV1Format($paste);
self::$_cache[$pasteid]['meta'] = $paste['meta']; self::$_cache[$pasteid]['meta'] = $paste['meta'];
self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste[self::_sanitizeColumn('postdate')]; self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste['postdate'];
$expire_date = (int) $paste[self::_sanitizeColumn('expiredate')]; $expire_date = (int) $paste['expiredate'];
if ($expire_date > 0) { if ($expire_date > 0) {
self::$_cache[$pasteid]['meta']['expire_date'] = $expire_date; self::$_cache[$pasteid]['meta']['expire_date'] = $expire_date;
} }
@ -295,16 +272,16 @@ class Database extends AbstractData
} }
// support v1 attachments // support v1 attachments
if (array_key_exists(self::_sanitizeColumn('attachment'), $paste) && strlen($paste[self::_sanitizeColumn('attachment')])) { if (array_key_exists('attachment', $paste) && strlen($paste['attachment'])) {
self::$_cache[$pasteid]['attachment'] = $paste[self::_sanitizeColumn('attachment')]; self::$_cache[$pasteid]['attachment'] = $paste['attachment'];
if (array_key_exists(self::_sanitizeColumn('attachmentname'), $paste) && strlen($paste[self::_sanitizeColumn('attachmentname')])) { if (array_key_exists('attachmentname', $paste) && strlen($paste['attachmentname'])) {
self::$_cache[$pasteid]['attachmentname'] = $paste[self::_sanitizeColumn('attachmentname')]; self::$_cache[$pasteid]['attachmentname'] = $paste['attachmentname'];
} }
} }
if ($paste[self::_sanitizeColumn('opendiscussion')]) { if ($paste['opendiscussion']) {
self::$_cache[$pasteid]['meta']['opendiscussion'] = true; self::$_cache[$pasteid]['meta']['opendiscussion'] = true;
} }
if ($paste[self::_sanitizeColumn('burnafterreading')]) { if ($paste['burnafterreading']) {
self::$_cache[$pasteid]['meta']['burnafterreading'] = true; self::$_cache[$pasteid]['meta']['burnafterreading'] = true;
} }
@ -379,21 +356,6 @@ class Database extends AbstractData
} }
} }
try { try {
if (self::$_type === 'oci') {
// It is not possible to execute in the normal way if strlen($big_string) >= 4000
$stmt = self::$_db->prepare(
'INSERT INTO ' . self::_sanitizeIdentifier('comment') .
' VALUES(?,?,?,?,?,?,?)'
);
$stmt->bindParam(1, $commentid);
$stmt->bindParam(2, $pasteid);
$stmt->bindParam(3, $parentid);
$stmt->bindParam(4, $data, PDO::PARAM_STR, strlen($data));
$stmt->bindParam(5, $meta['nickname']);
$stmt->bindParam(6, $meta[$iconKey]);
$stmt->bindParam(7, $meta[$createdKey], PDO::PARAM_INT);
return $stmt->execute();
}
return self::_exec( return self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('comment') . 'INSERT INTO ' . self::_sanitizeIdentifier('comment') .
' VALUES(?,?,?,?,?,?,?)', ' VALUES(?,?,?,?,?,?,?)',
@ -430,32 +392,22 @@ class Database extends AbstractData
$comments = array(); $comments = array();
if (count($rows)) { if (count($rows)) {
foreach ($rows as $row) { foreach ($rows as $row) {
$i = $this->getOpenSlot($comments, (int) $row[self::_sanitizeColumn('postdate')]); $i = $this->getOpenSlot($comments, (int) $row['postdate']);
$id = $row[self::_sanitizeColumn('dataid')]; $data = Json::decode($row['data']);
if (self::$_type === 'oci') {
$newrow = self::_select(
'SELECT data FROM ' . self::_sanitizeIdentifier('comment') .
' WHERE dataid = ?', array($id), true
);
$rawData = self::_clob($newrow['DATA']);
} else {
$rawData = $row['data'];
}
$data = Json::decode($rawData);
if (array_key_exists('v', $data) && $data['v'] >= 2) { if (array_key_exists('v', $data) && $data['v'] >= 2) {
$version = 2; $version = 2;
$comments[$i] = $data; $comments[$i] = $data;
} else { } else {
$version = 1; $version = 1;
$comments[$i] = array('data' => $rawData); $comments[$i] = array('data' => $row['data']);
} }
list($createdKey, $iconKey) = self::_getVersionedKeys($version); list($createdKey, $iconKey) = self::_getVersionedKeys($version);
$comments[$i]['id'] = $id; $comments[$i]['id'] = $row['dataid'];
$comments[$i]['parentid'] = $row[self::_sanitizeColumn('parentid')]; $comments[$i]['parentid'] = $row['parentid'];
$comments[$i]['meta'] = array($createdKey => (int) $row[self::_sanitizeColumn('postdate')]); $comments[$i]['meta'] = array($createdKey => (int) $row['postdate']);
foreach (array('nickname' => 'nickname', 'vizhash' => $iconKey) as $rowKey => $commentKey) { foreach (array('nickname' => 'nickname', 'vizhash' => $iconKey) as $rowKey => $commentKey) {
if (array_key_exists(self::_sanitizeColumn($rowKey), $row) && !empty($row[self::_sanitizeColumn($rowKey)])) { if (array_key_exists($rowKey, $row) && !empty($row[$rowKey])) {
$comments[$i]['meta'][$commentKey] = $row[self::_sanitizeColumn($rowKey)]; $comments[$i]['meta'][$commentKey] = $row[$rowKey];
} }
} }
} }
@ -572,7 +524,7 @@ class Database extends AbstractData
); );
if (count($rows)) { if (count($rows)) {
foreach ($rows as $row) { foreach ($rows as $row) {
$pastes[] = $row[self::_sanitizeIdentifier('dataid')]; $pastes[] = $row['dataid'];
} }
} }
return $pastes; return $pastes;
@ -591,7 +543,22 @@ class Database extends AbstractData
private static function _exec($sql, array $params) private static function _exec($sql, array $params)
{ {
$statement = self::$_db->prepare($sql); $statement = self::$_db->prepare($sql);
$result = $statement->execute($params); if (self::$_type === 'oci') {
// It is not possible to execute in the normal way if strlen($param) >= 4000
foreach ($params as $key => $parameter) {
$position = $key + 1;
if (is_int($parameter)) {
$statement->bindParam($position, $parameter, PDO::PARAM_INT);
} elseif ($length = strlen($parameter) >= 4000) {
$statement->bindParam($position, $parameter, PDO::PARAM_STR, $length);
} else {
$statement->bindParam($position, $parameter);
}
}
$result = $statement->execute();
} else {
$result = $statement->execute($params);
}
$statement->closeCursor(); $statement->closeCursor();
return $result; return $result;
} }
@ -615,6 +582,14 @@ class Database extends AbstractData
$statement->fetch(PDO::FETCH_ASSOC) : $statement->fetch(PDO::FETCH_ASSOC) :
$statement->fetchAll(PDO::FETCH_ASSOC); $statement->fetchAll(PDO::FETCH_ASSOC);
$statement->closeCursor(); $statement->closeCursor();
if (self::$_type === 'oci') {
// returned column names are all upper case, convert these back
// returned CLOB values are streams, convert these into strings
$result = array_combine(
array_map('strtolower', array_keys($result)),
array_map('self::_sanitizeClob', array_values($result))
);
}
return $result; return $result;
} }
@ -707,19 +682,7 @@ class Database extends AbstractData
} catch (PDOException $e) { } catch (PDOException $e) {
return ''; return '';
} }
return $row ? $row[self::_sanitizeColumn('value')] : ''; return $row ? $row['value'] : '';
}
/**
* OCI cannot accept semicolons
*
* @access private
* @static
* @return string
*/
private static function _getSemicolon()
{
return self::$_type === 'oci' ? '' : ';';
} }
/** /**
@ -744,7 +707,7 @@ class Database extends AbstractData
/** /**
* get the data type, depending on the database driver * get the data type, depending on the database driver
* *
* PostgreSQL uses a different API for BLOBs then SQL, hence we use TEXT * PostgreSQL and OCI uses a different API for BLOBs then SQL, hence we use TEXT and CLOB
* *
* @access private * @access private
* @static * @static
@ -752,7 +715,7 @@ class Database extends AbstractData
*/ */
private static function _getDataType() private static function _getDataType()
{ {
return self::$_type === 'pgsql' ? 'TEXT' : (self::$_type === 'oci' ? 'VARCHAR2(4000)' : 'BLOB'); return self::$_type === 'pgsql' ? 'TEXT' : (self::$_type === 'oci' ? 'CLOB' : 'BLOB');
} }
/** /**
@ -772,7 +735,7 @@ class Database extends AbstractData
/** /**
* get the meta type, depending on the database driver * get the meta type, depending on the database driver
* *
* OCI can't even accept TEXT so it has to be VARCHAR2(200) * OCI doesn't accept TEXT so it has to be VARCHAR2(4000)
* *
* @access private * @access private
* @static * @static
@ -798,31 +761,17 @@ class Database extends AbstractData
self::$_db->exec( self::$_db->exec(
'CREATE TABLE ' . self::_sanitizeIdentifier('paste') . ' ( ' . 'CREATE TABLE ' . self::_sanitizeIdentifier('paste') . ' ( ' .
"dataid CHAR(16) NOT NULL$main_key, " . "dataid CHAR(16) NOT NULL$main_key, " .
"data $attachmentType, " . "data $dataType, " .
'postdate INT, ' . 'postdate INT, ' .
'expiredate INT, ' . 'expiredate INT, ' .
'opendiscussion INT, ' . 'opendiscussion INT, ' .
'burnafterreading INT, ' . 'burnafterreading INT, ' .
"meta $metaType, " . "meta $metaType, " .
"attachment $attachmentType, " . "attachment $attachmentType, " .
"attachmentname $dataType$after_key )" . self::_getSemicolon() "attachmentname $dataType$after_key )"
); );
} }
/**
* get the nullable text type, depending on the database driver
*
* OCI will pad CHAR columns with spaces, hence VARCHAR2
*
* @access private
* @static
* @return string
*/
private static function _getParentType()
{
return self::$_type === 'oci' ? 'VARCHAR2(16)' : 'CHAR(16)';
}
/** /**
* create the paste table * create the paste table
* *
@ -833,21 +782,19 @@ class Database extends AbstractData
{ {
list($main_key, $after_key) = self::_getPrimaryKeyClauses(); list($main_key, $after_key) = self::_getPrimaryKeyClauses();
$dataType = self::_getDataType(); $dataType = self::_getDataType();
$parentType = self::_getParentType();
$attachmentType = self::_getAttachmentType();
self::$_db->exec( self::$_db->exec(
'CREATE TABLE ' . self::_sanitizeIdentifier('comment') . ' ( ' . 'CREATE TABLE ' . self::_sanitizeIdentifier('comment') . ' ( ' .
"dataid CHAR(16) NOT NULL$main_key, " . "dataid CHAR(16) NOT NULL$main_key, " .
'pasteid CHAR(16), ' . 'pasteid CHAR(16), ' .
"parentid $parentType, " . 'parentid CHAR(16), ' .
"data $attachmentType, " . "data $dataType, " .
"nickname $dataType, " . "nickname $dataType, " .
"vizhash $dataType, " . "vizhash $dataType, " .
"postdate INT$after_key )" . self::_getSemicolon() "postdate INT$after_key )"
); );
self::$_db->exec( self::$_db->exec(
'CREATE INDEX comment_parent ON ' . 'CREATE INDEX IF NOT EXISTS comment_parent ON ' .
self::_sanitizeIdentifier('comment') . '(pasteid)' . self::_getSemicolon() self::_sanitizeIdentifier('comment') . '(pasteid)'
); );
} }
@ -864,7 +811,7 @@ class Database extends AbstractData
$textType = self::$_type === 'oci' ? 'VARCHAR2(4000)' : 'TEXT'; $textType = self::$_type === 'oci' ? 'VARCHAR2(4000)' : 'TEXT';
self::$_db->exec( self::$_db->exec(
'CREATE TABLE ' . self::_sanitizeIdentifier('config') . 'CREATE TABLE ' . self::_sanitizeIdentifier('config') .
" ( id $charType NOT NULL$main_key, value $textType$after_key )" . self::_getSemicolon() " ( id $charType NOT NULL$main_key, value $textType$after_key )"
); );
self::_exec( self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('config') . 'INSERT INTO ' . self::_sanitizeIdentifier('config') .
@ -873,6 +820,24 @@ class Database extends AbstractData
); );
} }
/**
* sanitizes CLOB values used with OCI
*
* From: https://stackoverflow.com/questions/36200534/pdo-oci-into-a-clob-field
*
* @access private
* @static
* @param int|string|resource $value
* @return int|string
*/
public static function _sanitizeClob($value)
{
if (is_resource($value)) {
$value = stream_get_contents($value);
}
return $value;
}
/** /**
* sanitizes identifiers * sanitizes identifiers
* *
@ -883,21 +848,7 @@ class Database extends AbstractData
*/ */
private static function _sanitizeIdentifier($identifier) private static function _sanitizeIdentifier($identifier)
{ {
$id = preg_replace('/[^A-Za-z0-9_]+/', '', self::$_prefix . $identifier); return preg_replace('/[^A-Za-z0-9_]+/', '', self::$_prefix . $identifier);
return self::_sanitizeColumn($id);
}
/**
* sanitizes column name because OCI
*
* @access private
* @static
* @param string $name
* @return string
*/
private static function _sanitizeColumn($name)
{
return self::$_type === 'oci' ? strtoupper($name) : $name;
} }
/** /**
@ -915,43 +866,43 @@ class Database extends AbstractData
case '0.21': case '0.21':
// create the meta column if necessary (pre 0.21 change) // create the meta column if necessary (pre 0.21 change)
try { try {
self::$_db->exec('SELECT meta FROM ' . self::_sanitizeIdentifier('paste') . ' LIMIT 1;'); self::$_db->exec('SELECT meta FROM ' . self::_sanitizeIdentifier('paste') . ' LIMIT 1');
} catch (PDOException $e) { } catch (PDOException $e) {
self::$_db->exec('ALTER TABLE ' . self::_sanitizeIdentifier('paste') . ' ADD COLUMN meta TEXT;'); self::$_db->exec('ALTER TABLE ' . self::_sanitizeIdentifier('paste') . ' ADD COLUMN meta TEXT');
} }
// SQLite only allows one ALTER statement at a time... // SQLite only allows one ALTER statement at a time...
self::$_db->exec( self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . 'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
" ADD COLUMN attachment $attachmentType;" " ADD COLUMN attachment $attachmentType"
); );
self::$_db->exec( self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . " ADD COLUMN attachmentname $dataType;" 'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . " ADD COLUMN attachmentname $dataType"
); );
// SQLite doesn't support MODIFY, but it allows TEXT of similar // SQLite doesn't support MODIFY, but it allows TEXT of similar
// size as BLOB, so there is no need to change it there // size as BLOB, so there is no need to change it there
if (self::$_type !== 'sqlite') { if (self::$_type !== 'sqlite') {
self::$_db->exec( self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . 'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
" ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType;" " ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType"
); );
self::$_db->exec( self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('comment') . 'ALTER TABLE ' . self::_sanitizeIdentifier('comment') .
" ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType, " . " ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType, " .
"MODIFY COLUMN nickname $dataType, MODIFY COLUMN vizhash $dataType;" "MODIFY COLUMN nickname $dataType, MODIFY COLUMN vizhash $dataType"
); );
} else { } else {
self::$_db->exec( self::$_db->exec(
'CREATE UNIQUE INDEX IF NOT EXISTS paste_dataid ON ' . 'CREATE UNIQUE INDEX IF NOT EXISTS paste_dataid ON ' .
self::_sanitizeIdentifier('paste') . '(dataid);' self::_sanitizeIdentifier('paste') . '(dataid)'
); );
self::$_db->exec( self::$_db->exec(
'CREATE UNIQUE INDEX IF NOT EXISTS comment_dataid ON ' . 'CREATE UNIQUE INDEX IF NOT EXISTS comment_dataid ON ' .
self::_sanitizeIdentifier('comment') . '(dataid);' self::_sanitizeIdentifier('comment') . '(dataid)'
); );
} }
self::$_db->exec( self::$_db->exec(
'CREATE INDEX IF NOT EXISTS comment_parent ON ' . 'CREATE INDEX IF NOT EXISTS comment_parent ON ' .
self::_sanitizeIdentifier('comment') . '(pasteid);' self::_sanitizeIdentifier('comment') . '(pasteid)'
); );
// no break, continue with updates for 0.22 and later // no break, continue with updates for 0.22 and later
case '1.3': case '1.3':
@ -961,7 +912,7 @@ class Database extends AbstractData
if (self::$_type !== 'sqlite' && self::$_type !== 'pgsql') { if (self::$_type !== 'sqlite' && self::$_type !== 'pgsql') {
self::$_db->exec( self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . 'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
" MODIFY COLUMN data $attachmentType;" " MODIFY COLUMN data $attachmentType"
); );
} }
// no break, continue with updates for all newer versions // no break, continue with updates for all newer versions
@ -973,25 +924,4 @@ class Database extends AbstractData
); );
} }
} }
/**
* read CLOB for OCI
* https://stackoverflow.com/questions/36200534/pdo-oci-into-a-clob-field
*
* @access private
* @static
* @param resource $column
* @return string
*/
private static function _clob($column)
{
if ($column == null) {
return null;
}
$str = '';
while ($tmp = fread($column, 1024)) {
$str .= $tmp;
}
return $str;
}
} }

12
tst/Data/DatabaseTest.php
View File

@ -388,4 +388,16 @@ class DatabaseTest extends PHPUnit_Framework_TestCase
$this->assertEquals(Controller::VERSION, $result['value']); $this->assertEquals(Controller::VERSION, $result['value']);
Helper::rmDir($this->_path); Helper::rmDir($this->_path);
} }
public function testOciClob()
{
$int = (int) random_bytes(1);
$string = random_bytes(10);
$clob = fopen('php://memory', 'r+');
fwrite($clob, $string);
rewind($clob);
$this->assertEquals($int, Database::_sanitizeClob($int));
$this->assertEquals($string, Database::_sanitizeClob($string));
$this->assertEquals($string, Database::_sanitizeClob($clob));
}
} }