mirror of
https://github.com/PrivateBin/PrivateBin.git
synced 2024-10-01 01:26:10 -04:00
generalize OCI handling of queries and results
This commit is contained in:
El RIDO
parent
041ef7f7a5
commit
2182cdd44f
@ -7,6 +7,7 @@
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* ADDED: Opt-out of federated learning of cohorts (FLoC) (#776)
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* ADDED: Configuration option to exempt IPs from the rate-limiter (#787)
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* ADDED: Google Cloud Storage backend support (#795)
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* ADDED: Oracle database support (#868)
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* CHANGED: Language selection cookie only transmitted over HTTPS (#472)
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* CHANGED: Upgrading libraries to: random_compat 2.0.20
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* CHANGED: Removed automatic `.ini` configuration file migration (#808)
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@ -29,6 +29,7 @@ Sébastien Sauvage - original idea and main developer
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* Lucas Savva - configurable config file location, NixOS packaging
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* rodehoed - option to exempt ips from the rate-limiter
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* Mark van Holsteijn - Google Cloud Storage backend
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* Austin Huang - Oracle database support
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## Translations
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* Hexalyse - French
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@ -199,31 +199,12 @@ class Database extends AbstractData
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$burnafterreading = $paste['adata'][3];
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}
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try {
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$big_string = $isVersion1 ? $paste['data'] : Json::encode($paste);
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$metajson = Json::encode($meta);
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if (self::$_type === 'oci') {
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// It is not possible to execute in the normal way if strlen($big_string) >= 4000
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$stmt = self::$_db->prepare(
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'INSERT INTO ' . self::_sanitizeIdentifier('paste') .
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' VALUES(?,?,?,?,?,?,?,?,?)'
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);
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$stmt->bindParam(1, $pasteid);
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$stmt->bindParam(2, $big_string, PDO::PARAM_STR, strlen($big_string));
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$stmt->bindParam(3, $created, PDO::PARAM_INT);
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$stmt->bindParam(4, $expire_date, PDO::PARAM_INT);
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$stmt->bindParam(5, $opendiscussion, PDO::PARAM_INT);
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$stmt->bindParam(6, $burnafterreading, PDO::PARAM_INT);
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$stmt->bindParam(7, $metajson);
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$stmt->bindParam(8, $attachment, PDO::PARAM_STR, strlen($attachment));
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$stmt->bindParam(9, $attachmentname);
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return $stmt->execute();
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}
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return self::_exec(
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'INSERT INTO ' . self::_sanitizeIdentifier('paste') .
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' VALUES(?,?,?,?,?,?,?,?,?)',
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array(
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$pasteid,
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$big_string,
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$isVersion1 ? $paste['data'] : Json::encode($paste),
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$created,
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$expire_date,
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(int) $opendiscussion,
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@ -252,15 +233,11 @@ class Database extends AbstractData
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}
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self::$_cache[$pasteid] = false;
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$rawData = '';
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try {
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$paste = self::_select(
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'SELECT * FROM ' . self::_sanitizeIdentifier('paste') .
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' WHERE dataid = ?', array($pasteid), true
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);
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if ($paste !== false) {
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$rawData = self::$_type === 'oci' ? self::_clob($paste['DATA']) : $paste['data'];
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}
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} catch (Exception $e) {
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$paste = false;
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}
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@ -268,25 +245,25 @@ class Database extends AbstractData
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return false;
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}
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// create array
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$data = Json::decode($rawData);
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$data = Json::decode($paste['data']);
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$isVersion2 = array_key_exists('v', $data) && $data['v'] >= 2;
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if ($isVersion2) {
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self::$_cache[$pasteid] = $data;
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list($createdKey) = self::_getVersionedKeys(2);
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} else {
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self::$_cache[$pasteid] = array('data' => $paste[self::_sanitizeColumn('data')]);
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self::$_cache[$pasteid] = array('data' => $paste['data']);
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list($createdKey) = self::_getVersionedKeys(1);
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}
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try {
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$paste['meta'] = Json::decode($paste[self::_sanitizeColumn('meta')]);
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$paste['meta'] = Json::decode($paste['meta']);
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} catch (Exception $e) {
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$paste['meta'] = array();
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}
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$paste = self::upgradePreV1Format($paste);
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self::$_cache[$pasteid]['meta'] = $paste['meta'];
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self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste[self::_sanitizeColumn('postdate')];
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$expire_date = (int) $paste[self::_sanitizeColumn('expiredate')];
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self::$_cache[$pasteid]['meta'][$createdKey] = (int) $paste['postdate'];
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$expire_date = (int) $paste['expiredate'];
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if ($expire_date > 0) {
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self::$_cache[$pasteid]['meta']['expire_date'] = $expire_date;
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}
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@ -295,16 +272,16 @@ class Database extends AbstractData
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}
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// support v1 attachments
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if (array_key_exists(self::_sanitizeColumn('attachment'), $paste) && strlen($paste[self::_sanitizeColumn('attachment')])) {
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self::$_cache[$pasteid]['attachment'] = $paste[self::_sanitizeColumn('attachment')];
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if (array_key_exists(self::_sanitizeColumn('attachmentname'), $paste) && strlen($paste[self::_sanitizeColumn('attachmentname')])) {
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self::$_cache[$pasteid]['attachmentname'] = $paste[self::_sanitizeColumn('attachmentname')];
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if (array_key_exists('attachment', $paste) && strlen($paste['attachment'])) {
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self::$_cache[$pasteid]['attachment'] = $paste['attachment'];
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if (array_key_exists('attachmentname', $paste) && strlen($paste['attachmentname'])) {
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self::$_cache[$pasteid]['attachmentname'] = $paste['attachmentname'];
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}
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}
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if ($paste[self::_sanitizeColumn('opendiscussion')]) {
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if ($paste['opendiscussion']) {
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self::$_cache[$pasteid]['meta']['opendiscussion'] = true;
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}
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if ($paste[self::_sanitizeColumn('burnafterreading')]) {
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if ($paste['burnafterreading']) {
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self::$_cache[$pasteid]['meta']['burnafterreading'] = true;
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}
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@ -379,21 +356,6 @@ class Database extends AbstractData
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}
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}
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try {
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if (self::$_type === 'oci') {
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// It is not possible to execute in the normal way if strlen($big_string) >= 4000
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$stmt = self::$_db->prepare(
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'INSERT INTO ' . self::_sanitizeIdentifier('comment') .
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' VALUES(?,?,?,?,?,?,?)'
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);
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$stmt->bindParam(1, $commentid);
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$stmt->bindParam(2, $pasteid);
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$stmt->bindParam(3, $parentid);
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$stmt->bindParam(4, $data, PDO::PARAM_STR, strlen($data));
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$stmt->bindParam(5, $meta['nickname']);
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$stmt->bindParam(6, $meta[$iconKey]);
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$stmt->bindParam(7, $meta[$createdKey], PDO::PARAM_INT);
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return $stmt->execute();
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}
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return self::_exec(
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'INSERT INTO ' . self::_sanitizeIdentifier('comment') .
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' VALUES(?,?,?,?,?,?,?)',
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@ -430,32 +392,22 @@ class Database extends AbstractData
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$comments = array();
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if (count($rows)) {
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foreach ($rows as $row) {
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$i = $this->getOpenSlot($comments, (int) $row[self::_sanitizeColumn('postdate')]);
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$id = $row[self::_sanitizeColumn('dataid')];
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if (self::$_type === 'oci') {
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$newrow = self::_select(
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'SELECT data FROM ' . self::_sanitizeIdentifier('comment') .
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' WHERE dataid = ?', array($id), true
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);
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$rawData = self::_clob($newrow['DATA']);
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} else {
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$rawData = $row['data'];
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}
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$data = Json::decode($rawData);
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$i = $this->getOpenSlot($comments, (int) $row['postdate']);
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$data = Json::decode($row['data']);
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if (array_key_exists('v', $data) && $data['v'] >= 2) {
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$version = 2;
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$comments[$i] = $data;
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} else {
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$version = 1;
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$comments[$i] = array('data' => $rawData);
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$comments[$i] = array('data' => $row['data']);
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}
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list($createdKey, $iconKey) = self::_getVersionedKeys($version);
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$comments[$i]['id'] = $id;
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$comments[$i]['parentid'] = $row[self::_sanitizeColumn('parentid')];
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$comments[$i]['meta'] = array($createdKey => (int) $row[self::_sanitizeColumn('postdate')]);
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$comments[$i]['id'] = $row['dataid'];
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$comments[$i]['parentid'] = $row['parentid'];
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$comments[$i]['meta'] = array($createdKey => (int) $row['postdate']);
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foreach (array('nickname' => 'nickname', 'vizhash' => $iconKey) as $rowKey => $commentKey) {
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if (array_key_exists(self::_sanitizeColumn($rowKey), $row) && !empty($row[self::_sanitizeColumn($rowKey)])) {
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$comments[$i]['meta'][$commentKey] = $row[self::_sanitizeColumn($rowKey)];
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if (array_key_exists($rowKey, $row) && !empty($row[$rowKey])) {
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$comments[$i]['meta'][$commentKey] = $row[$rowKey];
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}
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}
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}
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@ -572,7 +524,7 @@ class Database extends AbstractData
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);
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if (count($rows)) {
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foreach ($rows as $row) {
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$pastes[] = $row[self::_sanitizeIdentifier('dataid')];
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$pastes[] = $row['dataid'];
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}
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}
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return $pastes;
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@ -591,7 +543,22 @@ class Database extends AbstractData
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private static function _exec($sql, array $params)
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{
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$statement = self::$_db->prepare($sql);
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$result = $statement->execute($params);
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if (self::$_type === 'oci') {
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// It is not possible to execute in the normal way if strlen($param) >= 4000
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foreach ($params as $key => $parameter) {
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$position = $key + 1;
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if (is_int($parameter)) {
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$statement->bindParam($position, $parameter, PDO::PARAM_INT);
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} elseif ($length = strlen($parameter) >= 4000) {
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$statement->bindParam($position, $parameter, PDO::PARAM_STR, $length);
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} else {
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$statement->bindParam($position, $parameter);
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}
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}
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$result = $statement->execute();
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} else {
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$result = $statement->execute($params);
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}
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$statement->closeCursor();
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return $result;
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}
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@ -615,6 +582,14 @@ class Database extends AbstractData
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$statement->fetch(PDO::FETCH_ASSOC) :
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$statement->fetchAll(PDO::FETCH_ASSOC);
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$statement->closeCursor();
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if (self::$_type === 'oci') {
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// returned column names are all upper case, convert these back
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// returned CLOB values are streams, convert these into strings
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$result = array_combine(
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array_map('strtolower', array_keys($result)),
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array_map('self::_sanitizeClob', array_values($result))
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);
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}
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return $result;
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}
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@ -707,19 +682,7 @@ class Database extends AbstractData
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} catch (PDOException $e) {
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return '';
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}
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return $row ? $row[self::_sanitizeColumn('value')] : '';
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}
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/**
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* OCI cannot accept semicolons
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*
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* @access private
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* @static
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* @return string
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*/
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private static function _getSemicolon()
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{
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return self::$_type === 'oci' ? '' : ';';
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return $row ? $row['value'] : '';
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}
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/**
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@ -744,7 +707,7 @@ class Database extends AbstractData
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/**
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* get the data type, depending on the database driver
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*
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* PostgreSQL uses a different API for BLOBs then SQL, hence we use TEXT
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* PostgreSQL and OCI uses a different API for BLOBs then SQL, hence we use TEXT and CLOB
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*
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* @access private
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* @static
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@ -752,7 +715,7 @@ class Database extends AbstractData
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*/
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private static function _getDataType()
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{
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return self::$_type === 'pgsql' ? 'TEXT' : (self::$_type === 'oci' ? 'VARCHAR2(4000)' : 'BLOB');
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return self::$_type === 'pgsql' ? 'TEXT' : (self::$_type === 'oci' ? 'CLOB' : 'BLOB');
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}
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/**
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@ -772,7 +735,7 @@ class Database extends AbstractData
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/**
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* get the meta type, depending on the database driver
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*
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* OCI can't even accept TEXT so it has to be VARCHAR2(200)
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* OCI doesn't accept TEXT so it has to be VARCHAR2(4000)
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*
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* @access private
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* @static
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@ -798,31 +761,17 @@ class Database extends AbstractData
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self::$_db->exec(
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'CREATE TABLE ' . self::_sanitizeIdentifier('paste') . ' ( ' .
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"dataid CHAR(16) NOT NULL$main_key, " .
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"data $attachmentType, " .
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"data $dataType, " .
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'postdate INT, ' .
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'expiredate INT, ' .
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'opendiscussion INT, ' .
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'burnafterreading INT, ' .
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"meta $metaType, " .
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"attachment $attachmentType, " .
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"attachmentname $dataType$after_key )" . self::_getSemicolon()
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"attachmentname $dataType$after_key )"
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);
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}
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/**
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* get the nullable text type, depending on the database driver
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*
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* OCI will pad CHAR columns with spaces, hence VARCHAR2
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*
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* @access private
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* @static
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* @return string
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*/
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private static function _getParentType()
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{
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return self::$_type === 'oci' ? 'VARCHAR2(16)' : 'CHAR(16)';
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}
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/**
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* create the paste table
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*
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@ -833,21 +782,19 @@ class Database extends AbstractData
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{
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list($main_key, $after_key) = self::_getPrimaryKeyClauses();
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$dataType = self::_getDataType();
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$parentType = self::_getParentType();
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$attachmentType = self::_getAttachmentType();
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self::$_db->exec(
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'CREATE TABLE ' . self::_sanitizeIdentifier('comment') . ' ( ' .
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"dataid CHAR(16) NOT NULL$main_key, " .
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'pasteid CHAR(16), ' .
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"parentid $parentType, " .
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"data $attachmentType, " .
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'parentid CHAR(16), ' .
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"data $dataType, " .
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"nickname $dataType, " .
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"vizhash $dataType, " .
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"postdate INT$after_key )" . self::_getSemicolon()
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"postdate INT$after_key )"
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);
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self::$_db->exec(
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'CREATE INDEX comment_parent ON ' .
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self::_sanitizeIdentifier('comment') . '(pasteid)' . self::_getSemicolon()
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'CREATE INDEX IF NOT EXISTS comment_parent ON ' .
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self::_sanitizeIdentifier('comment') . '(pasteid)'
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);
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}
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@ -864,7 +811,7 @@ class Database extends AbstractData
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$textType = self::$_type === 'oci' ? 'VARCHAR2(4000)' : 'TEXT';
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self::$_db->exec(
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'CREATE TABLE ' . self::_sanitizeIdentifier('config') .
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" ( id $charType NOT NULL$main_key, value $textType$after_key )" . self::_getSemicolon()
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" ( id $charType NOT NULL$main_key, value $textType$after_key )"
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);
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self::_exec(
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'INSERT INTO ' . self::_sanitizeIdentifier('config') .
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@ -873,6 +820,24 @@ class Database extends AbstractData
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);
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}
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/**
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* sanitizes CLOB values used with OCI
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*
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* From: https://stackoverflow.com/questions/36200534/pdo-oci-into-a-clob-field
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*
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* @access private
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* @static
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* @param int|string|resource $value
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* @return int|string
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*/
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public static function _sanitizeClob($value)
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{
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if (is_resource($value)) {
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$value = stream_get_contents($value);
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}
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return $value;
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}
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/**
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* sanitizes identifiers
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*
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@ -883,21 +848,7 @@ class Database extends AbstractData
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*/
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private static function _sanitizeIdentifier($identifier)
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{
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$id = preg_replace('/[^A-Za-z0-9_]+/', '', self::$_prefix . $identifier);
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return self::_sanitizeColumn($id);
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}
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/**
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* sanitizes column name because OCI
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*
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* @access private
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* @static
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* @param string $name
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* @return string
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*/
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private static function _sanitizeColumn($name)
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{
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return self::$_type === 'oci' ? strtoupper($name) : $name;
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return preg_replace('/[^A-Za-z0-9_]+/', '', self::$_prefix . $identifier);
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}
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/**
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@ -915,43 +866,43 @@ class Database extends AbstractData
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case '0.21':
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// create the meta column if necessary (pre 0.21 change)
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try {
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self::$_db->exec('SELECT meta FROM ' . self::_sanitizeIdentifier('paste') . ' LIMIT 1;');
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self::$_db->exec('SELECT meta FROM ' . self::_sanitizeIdentifier('paste') . ' LIMIT 1');
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} catch (PDOException $e) {
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self::$_db->exec('ALTER TABLE ' . self::_sanitizeIdentifier('paste') . ' ADD COLUMN meta TEXT;');
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self::$_db->exec('ALTER TABLE ' . self::_sanitizeIdentifier('paste') . ' ADD COLUMN meta TEXT');
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}
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||||
// SQLite only allows one ALTER statement at a time...
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self::$_db->exec(
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'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
|
||||
" ADD COLUMN attachment $attachmentType;"
|
||||
" ADD COLUMN attachment $attachmentType"
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||||
);
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self::$_db->exec(
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'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . " ADD COLUMN attachmentname $dataType;"
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||||
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . " ADD COLUMN attachmentname $dataType"
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||||
);
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||||
// SQLite doesn't support MODIFY, but it allows TEXT of similar
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||||
// size as BLOB, so there is no need to change it there
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||||
if (self::$_type !== 'sqlite') {
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||||
self::$_db->exec(
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'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
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||||
" ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType;"
|
||||
" ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType"
|
||||
);
|
||||
self::$_db->exec(
|
||||
'ALTER TABLE ' . self::_sanitizeIdentifier('comment') .
|
||||
" ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType, " .
|
||||
"MODIFY COLUMN nickname $dataType, MODIFY COLUMN vizhash $dataType;"
|
||||
"MODIFY COLUMN nickname $dataType, MODIFY COLUMN vizhash $dataType"
|
||||
);
|
||||
} else {
|
||||
self::$_db->exec(
|
||||
'CREATE UNIQUE INDEX IF NOT EXISTS paste_dataid ON ' .
|
||||
self::_sanitizeIdentifier('paste') . '(dataid);'
|
||||
self::_sanitizeIdentifier('paste') . '(dataid)'
|
||||
);
|
||||
self::$_db->exec(
|
||||
'CREATE UNIQUE INDEX IF NOT EXISTS comment_dataid ON ' .
|
||||
self::_sanitizeIdentifier('comment') . '(dataid);'
|
||||
self::_sanitizeIdentifier('comment') . '(dataid)'
|
||||
);
|
||||
}
|
||||
self::$_db->exec(
|
||||
'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
|
||||
case '1.3':
|
||||
@ -961,7 +912,7 @@ class Database extends AbstractData
|
||||
if (self::$_type !== 'sqlite' && self::$_type !== 'pgsql') {
|
||||
self::$_db->exec(
|
||||
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
|
||||
" MODIFY COLUMN data $attachmentType;"
|
||||
" MODIFY COLUMN data $attachmentType"
|
||||
);
|
||||
}
|
||||
// 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;
|
||||
}
|
||||
}
|
||||
|
||||
@ -388,4 +388,16 @@ class DatabaseTest extends PHPUnit_Framework_TestCase
|
||||
$this->assertEquals(Controller::VERSION, $result['value']);
|
||||
Helper::rmDir($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));
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user