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Support OCI (Read/Write)

This commit is contained in:
Austin Huang 2022-01-17 20:06:26 -05:00
parent 4f09873f94
commit ee99952d90
No known key found for this signature in database
GPG Key ID: 84C23AA04587A91F
1 changed files with 104 additions and 23 deletions
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127
lib/Data/Database.php
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@ -199,12 +199,30 @@ class Database extends AbstractData
$burnafterreading = $paste['adata'][3];
}
try {
$big_string = $isVersion1 ? $paste['data'] : Json::encode($paste);
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);
$stmt->bindParam(7, Json::encode($meta));
$stmt->bindParam(8, $attachment, PDO::PARAM_STR, strlen($attachment));
$stmt->bindParam(9, $attachmentname);
return $stmt->execute();
}
return self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('paste') .
' VALUES(?,?,?,?,?,?,?,?,?)',
array(
$pasteid,
$isVersion1 ? $paste['data'] : Json::encode($paste),
$big_string,
$created,
$expire_date,
(int) $opendiscussion,
@ -233,11 +251,15 @@ class Database extends AbstractData
}
self::$_cache[$pasteid] = false;
$rawData = "";
try {
$paste = self::_select(
'SELECT * FROM ' . self::_sanitizeIdentifier('paste') .
' WHERE dataid = ?', array($pasteid), true
);
if ($paste !== false) {
$rawData = self::$_type === 'oci' ? self::_clob($paste['DATA']) : $paste['data'];
}
} catch (Exception $e) {
$paste = false;
}
@ -245,25 +267,25 @@ class Database extends AbstractData
return false;
}
// create array
$data = Json::decode($paste['data']);
$data = Json::decode($rawData);
$isVersion2 = array_key_exists('v', $data) && $data['v'] >= 2;
if ($isVersion2) {
self::$_cache[$pasteid] = $data;
list($createdKey) = self::_getVersionedKeys(2);
} else {
self::$_cache[$pasteid] = array('data' => $paste['data']);
self::$_cache[$pasteid] = array('data' => $paste[self::_sanitizeColumn('data')]);
list($createdKey) = self::_getVersionedKeys(1);
}
try {
$paste['meta'] = Json::decode($paste['meta']);
$paste['meta'] = Json::decode($paste[self::_sanitizeColumn('meta')]);
} catch (Exception $e) {
$paste['meta'] = array();
}
$paste = self::upgradePreV1Format($paste);
self::$_cache[$pasteid]['meta'] = $paste['meta'];
self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste['postdate'];
$expire_date = (int) $paste['expiredate'];
self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste[self::_sanitizeColumn('postdate')];
$expire_date = (int) $paste[self::_sanitizeColumn('expiredate')];
if ($expire_date > 0) {
self::$_cache[$pasteid]['meta']['expire_date'] = $expire_date;
}
@ -272,16 +294,16 @@ class Database extends AbstractData
}
// support v1 attachments
if (array_key_exists('attachment', $paste) && strlen($paste['attachment'])) {
self::$_cache[$pasteid]['attachment'] = $paste['attachment'];
if (array_key_exists('attachmentname', $paste) && strlen($paste['attachmentname'])) {
self::$_cache[$pasteid]['attachmentname'] = $paste['attachmentname'];
if (array_key_exists(self::_sanitizeColumn('attachment'), $paste) && strlen($paste[self::_sanitizeColumn('attachment')])) {
self::$_cache[$pasteid]['attachment'] = $paste[self::_sanitizeColumn('attachment')];
if (array_key_exists(self::_sanitizeColumn('attachmentname'), $paste) && strlen($paste[self::_sanitizeColumn('attachmentname')])) {
self::$_cache[$pasteid]['attachmentname'] = $paste[self::_sanitizeColumn('attachmentname')];
}
}
if ($paste['opendiscussion']) {
if ($paste[self::_sanitizeColumn('opendiscussion')]) {
self::$_cache[$pasteid]['meta']['opendiscussion'] = true;
}
if ($paste['burnafterreading']) {
if ($paste[self::_sanitizeColumn('burnafterreading')]) {
self::$_cache[$pasteid]['meta']['burnafterreading'] = true;
}
@ -356,6 +378,21 @@ class Database extends AbstractData
}
}
try {
if (self::$_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(
'INSERT INTO ' . self::_sanitizeIdentifier('comment') .
' VALUES(?,?,?,?,?,?,?)',
@ -392,22 +429,33 @@ class Database extends AbstractData
$comments = array();
if (count($rows)) {
foreach ($rows as $row) {
$i = $this->getOpenSlot($comments, (int) $row['postdate']);
$data = Json::decode($row['data']);
$i = $this->getOpenSlot($comments, (int) $row[self::_sanitizeColumn('postdate')]);
$id = $row[self::_sanitizeColumn('dataid')];
if (self::$_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) {
$version = 2;
$comments[$i] = $data;
} else {
$version = 1;
$comments[$i] = array('data' => $row['data']);
$comments[$i] = array('data' => $rawData);
}
list($createdKey, $iconKey) = self::_getVersionedKeys($version);
$comments[$i]['id'] = $row['dataid'];
$comments[$i]['parentid'] = $row['parentid'];
$comments[$i]['meta'] = array($createdKey => (int) $row['postdate']);
$comments[$i]['id'] = $id;
$comments[$i]['parentid'] = $row[self::_sanitizeColumn('parentid')];
$comments[$i]['meta'] = array($createdKey => (int) $row[self::_sanitizeColumn('postdate')]);
foreach (array('nickname' => 'nickname', 'vizhash' => $iconKey) as $rowKey => $commentKey) {
if (array_key_exists($rowKey, $row) && !empty($row[$rowKey])) {
$comments[$i]['meta'][$commentKey] = $row[$rowKey];
if (array_key_exists(self::_sanitizeColumn($rowKey), $row) && !empty($row[self::_sanitizeColumn($rowKey)])) {
$comments[$i]['meta'][$commentKey] = $row[self::_sanitizeColumn($rowKey)];
}
}
}
@ -518,7 +566,8 @@ class Database extends AbstractData
$pastes = array();
$rows = self::_select(
'SELECT dataid FROM ' . self::_sanitizeIdentifier('paste') .
' WHERE expiredate < ? AND expiredate != ? LIMIT ?',
' WHERE expiredate < ? AND expiredate != ? ' .
(self::$_type === 'oci' ? 'FETCH NEXT ? ROWS ONLY' : 'LIMIT ?'),
array(time(), 0, $batchsize)
);
if (count($rows)) {
@ -658,7 +707,7 @@ class Database extends AbstractData
} catch (PDOException $e) {
return '';
}
return $row ? $row['value'] : '';
return $row ? $row[self::_sanitizeColumn('value')] : '';
}
/**
@ -789,7 +838,21 @@ class Database extends AbstractData
*/
private static function _sanitizeIdentifier($identifier)
{
return preg_replace('/[^A-Za-z0-9_]+/', '', self::$_prefix . $identifier);
$id = preg_replace('/[^A-Za-z0-9_]+/', '', self::$_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;
}
/**
@ -865,4 +928,22 @@ class Database extends AbstractData
);
}
}
/**
* read CLOB for OCI
* https://stackoverflow.com/questions/36200534/pdo-oci-into-a-clob-field
*
* @access private
* @static
* @param object $column
* @return string
*/
private static function _clob($column)
{
if ($column == null) return null;
$str = "";
while ($column !== null and $tmp = fread($column, 1024))
$str .= $tmp;
return $str;
}
}