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Merge branch 'austinhuang0131-master'

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El RIDO 2022-01-31 06:40:13 +01:00
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5 changed files with 235 additions and 107 deletions
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1
CHANGELOG.md
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@ -7,6 +7,7 @@
* ADDED: Opt-out of federated learning of cohorts (FLoC) (#776)
* ADDED: Configuration option to exempt IPs from the rate-limiter (#787)
* ADDED: Google Cloud Storage backend support (#795)
* ADDED: Oracle database support (#868)
* CHANGED: Language selection cookie only transmitted over HTTPS (#472)
* CHANGED: Upgrading libraries to: random_compat 2.0.20
* CHANGED: Removed automatic `.ini` configuration file migration (#808)

1
CREDITS.md
View File

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

10
INSTALL.md
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@ -190,8 +190,14 @@ CREATE TABLE prefix_config (
INSERT INTO prefix_config VALUES('VERSION', '1.3.5');
```
In **PostgreSQL**, the data, attachment, nickname and vizhash columns needs to
be TEXT and not BLOB or MEDIUMBLOB.
In **PostgreSQL**, the `data`, `attachment`, `nickname` and `vizhash` columns
need to be `TEXT` and not `BLOB` or `MEDIUMBLOB`. The key names in brackets,
after `PRIMARY KEY`, need to be removed.
In **Oracle**, the `data`, `attachment`, `nickname` and `vizhash` columns need
to be `CLOB` and not `BLOB` or `MEDIUMBLOB`, the `id` column in the `config`
table needs to be `VARCHAR2(16)` and the `meta` column in the `paste` table
and the `value` column in the `config` table need to be `VARCHAR2(4000)`.
### Using Google Cloud Storage
If you want to deploy PrivateBin in a serverless manner in the Google Cloud, you

302
lib/Data/Database.php
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@ -97,6 +97,11 @@ class Database extends AbstractData
self::$_type = strtolower(
substr($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')) {
$options['opt'][PDO::MYSQL_ATTR_INIT_COMMAND] = "SET sql_mode='ANSI_QUOTES'";
}
$tableQuery = self::_getTableQuery(self::$_type);
self::$_db = new PDO(
$options['dsn'],
@ -200,8 +205,8 @@ class Database extends AbstractData
}
try {
return self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('paste') .
' VALUES(?,?,?,?,?,?,?,?,?)',
'INSERT INTO "' . self::_sanitizeIdentifier('paste') .
'" VALUES(?,?,?,?,?,?,?,?,?)',
array(
$pasteid,
$isVersion1 ? $paste['data'] : Json::encode($paste),
@ -235,8 +240,8 @@ class Database extends AbstractData
self::$_cache[$pasteid] = false;
try {
$paste = self::_select(
'SELECT * FROM ' . self::_sanitizeIdentifier('paste') .
' WHERE dataid = ?', array($pasteid), true
'SELECT * FROM "' . self::_sanitizeIdentifier('paste') .
'" WHERE "dataid" = ?', array($pasteid), true
);
} catch (Exception $e) {
$paste = false;
@ -297,12 +302,12 @@ class Database extends AbstractData
public function delete($pasteid)
{
self::_exec(
'DELETE FROM ' . self::_sanitizeIdentifier('paste') .
' WHERE dataid = ?', array($pasteid)
'DELETE FROM "' . self::_sanitizeIdentifier('paste') .
'" WHERE "dataid" = ?', array($pasteid)
);
self::_exec(
'DELETE FROM ' . self::_sanitizeIdentifier('comment') .
' WHERE pasteid = ?', array($pasteid)
'DELETE FROM "' . self::_sanitizeIdentifier('comment') .
'" WHERE "pasteid" = ?', array($pasteid)
);
if (
array_key_exists($pasteid, self::$_cache)
@ -357,8 +362,8 @@ class Database extends AbstractData
}
try {
return self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('comment') .
' VALUES(?,?,?,?,?,?,?)',
'INSERT INTO "' . self::_sanitizeIdentifier('comment') .
'" VALUES(?,?,?,?,?,?,?)',
array(
$commentid,
$pasteid,
@ -384,13 +389,13 @@ class Database extends AbstractData
public function readComments($pasteid)
{
$rows = self::_select(
'SELECT * FROM ' . self::_sanitizeIdentifier('comment') .
' WHERE pasteid = ?', array($pasteid)
'SELECT * FROM "' . self::_sanitizeIdentifier('comment') .
'" WHERE "pasteid" = ?', array($pasteid)
);
// create comment list
$comments = array();
if (count($rows)) {
if (is_array($rows) && count($rows)) {
foreach ($rows as $row) {
$i = $this->getOpenSlot($comments, (int) $row['postdate']);
$data = Json::decode($row['data']);
@ -429,8 +434,8 @@ class Database extends AbstractData
{
try {
return (bool) self::_select(
'SELECT dataid FROM ' . self::_sanitizeIdentifier('comment') .
' WHERE pasteid = ? AND parentid = ? AND dataid = ?',
'SELECT "dataid" FROM "' . self::_sanitizeIdentifier('comment') .
'" WHERE "pasteid" = ? AND "parentid" = ? AND "dataid" = ?',
array($pasteid, $parentid, $commentid), true
);
} catch (Exception $e) {
@ -458,8 +463,8 @@ class Database extends AbstractData
}
}
return self::_exec(
'UPDATE ' . self::_sanitizeIdentifier('config') .
' SET value = ? WHERE id = ?',
'UPDATE "' . self::_sanitizeIdentifier('config') .
'" SET "value" = ? WHERE "id" = ?',
array($value, strtoupper($namespace))
);
}
@ -479,8 +484,8 @@ class Database extends AbstractData
if ($value === '') {
// initialize the row, so that setValue can rely on UPDATE queries
self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('config') .
' VALUES(?,?)',
'INSERT INTO "' . self::_sanitizeIdentifier('config') .
'" VALUES(?,?)',
array($configKey, '')
);
@ -517,11 +522,12 @@ class Database extends AbstractData
{
$pastes = array();
$rows = self::_select(
'SELECT dataid FROM ' . self::_sanitizeIdentifier('paste') .
' WHERE expiredate < ? AND expiredate != ? LIMIT ?',
'SELECT "dataid" FROM "' . self::_sanitizeIdentifier('paste') .
'" WHERE "expiredate" < ? AND "expiredate" != ? ' .
(self::$_type === 'oci' ? 'FETCH NEXT ? ROWS ONLY' : 'LIMIT ?'),
array(time(), 0, $batchsize)
);
if (count($rows)) {
if (is_array($rows) && count($rows)) {
foreach ($rows as $row) {
$pastes[] = $row['dataid'];
}
@ -542,7 +548,17 @@ class Database extends AbstractData
private static function _exec($sql, array $params)
{
$statement = self::$_db->prepare($sql);
$result = $statement->execute($params);
foreach ($params as $key => &$parameter) {
$position = $key + 1;
if (is_int($parameter)) {
$statement->bindParam($position, $parameter, PDO::PARAM_INT);
} elseif (strlen($parameter) >= 4000) {
$statement->bindParam($position, $parameter, PDO::PARAM_STR, strlen($parameter));
} else {
$statement->bindParam($position, $parameter);
}
}
$result = $statement->execute();
$statement->closeCursor();
return $result;
}
@ -562,10 +578,24 @@ class Database extends AbstractData
{
$statement = self::$_db->prepare($sql);
$statement->execute($params);
$result = $firstOnly ?
$statement->fetch(PDO::FETCH_ASSOC) :
$statement->fetchAll(PDO::FETCH_ASSOC);
if ($firstOnly) {
$result = $statement->fetch(PDO::FETCH_ASSOC);
} elseif (self::$_type === 'oci') {
// workaround for https://bugs.php.net/bug.php?id=46728
$result = array();
while ($row = $statement->fetch(PDO::FETCH_ASSOC)) {
$result[] = array_map('self::_sanitizeClob', $row);
}
} else {
$result = $statement->fetchAll(PDO::FETCH_ASSOC);
}
$statement->closeCursor();
if (self::$_type === 'oci' && is_array($result)) {
// returned CLOB values are streams, convert these into strings
$result = $firstOnly ?
array_map('self::_sanitizeClob', $result) :
$result;
}
return $result;
}
@ -598,14 +628,15 @@ class Database extends AbstractData
{
switch ($type) {
case 'ibm':
$sql = 'SELECT tabname FROM SYSCAT.TABLES ';
$sql = 'SELECT "tabname" FROM "SYSCAT"."TABLES"';
break;
case 'informix':
$sql = 'SELECT tabname FROM systables ';
$sql = 'SELECT "tabname" FROM "systables"';
break;
case 'mssql':
$sql = 'SELECT name FROM sysobjects '
. "WHERE type = 'U' ORDER BY name";
// U: tables created by the user
$sql = 'SELECT "name" FROM "sysobjects" '
. 'WHERE "type" = \'U\' ORDER BY "name"';
break;
case 'mysql':
$sql = 'SHOW TABLES';
@ -614,23 +645,23 @@ class Database extends AbstractData
$sql = 'SELECT table_name FROM all_tables';
break;
case 'pgsql':
$sql = 'SELECT c.relname AS table_name '
. 'FROM pg_class c, pg_user u '
. "WHERE c.relowner = u.usesysid AND c.relkind = 'r' "
. 'AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) '
. "AND c.relname !~ '^(pg_|sql_)' "
$sql = 'SELECT c."relname" AS "table_name" '
. 'FROM "pg_class" c, "pg_user" u '
. 'WHERE c."relowner" = u."usesysid" AND c."relkind" = \'r\' '
. 'AND NOT EXISTS (SELECT 1 FROM "pg_views" WHERE "viewname" = c."relname") '
. "AND c.\"relname\" !~ '^(pg_|sql_)' "
. 'UNION '
. 'SELECT c.relname AS table_name '
. 'FROM pg_class c '
. "WHERE c.relkind = 'r' "
. 'AND NOT EXISTS (SELECT 1 FROM pg_views WHERE viewname = c.relname) '
. 'AND NOT EXISTS (SELECT 1 FROM pg_user WHERE usesysid = c.relowner) '
. "AND c.relname !~ '^pg_'";
. 'SELECT c."relname" AS "table_name" '
. 'FROM "pg_class" c '
. "WHERE c.\"relkind\" = 'r' "
. 'AND NOT EXISTS (SELECT 1 FROM "pg_views" WHERE "viewname" = c."relname") '
. 'AND NOT EXISTS (SELECT 1 FROM "pg_user" WHERE "usesysid" = c."relowner") '
. "AND c.\"relname\" !~ '^pg_'";
break;
case 'sqlite':
$sql = "SELECT name FROM sqlite_master WHERE type='table' "
. 'UNION ALL SELECT name FROM sqlite_temp_master '
. "WHERE type='table' ORDER BY name";
$sql = 'SELECT "name" FROM "sqlite_master" WHERE "type"=\'table\' '
. 'UNION ALL SELECT "name" FROM "sqlite_temp_master" '
. 'WHERE "type"=\'table\' ORDER BY "name"';
break;
default:
throw new Exception(
@ -652,8 +683,8 @@ class Database extends AbstractData
{
try {
$row = self::_select(
'SELECT value FROM ' . self::_sanitizeIdentifier('config') .
' WHERE id = ?', array($key), true
'SELECT "value" FROM "' . self::_sanitizeIdentifier('config') .
'" WHERE "id" = ?', array($key), true
);
} catch (PDOException $e) {
return '';
@ -672,10 +703,14 @@ class Database extends AbstractData
private static function _getPrimaryKeyClauses($key = 'dataid')
{
$main_key = $after_key = '';
if (self::$_type === 'mysql') {
$after_key = ", PRIMARY KEY ($key)";
} else {
switch (self::$_type) {
case 'mysql':
case 'oci':
$after_key = ", PRIMARY KEY (\"$key\")";
break;
default:
$main_key = ' PRIMARY KEY';
break;
}
return array($main_key, $after_key);
}
@ -683,7 +718,7 @@ class Database extends AbstractData
/**
* get the data type, depending on the database driver
*
* PostgreSQL uses a different API for BLOBs then SQL, hence we use TEXT
* PostgreSQL and OCI uses a different API for BLOBs then SQL, hence we use TEXT and CLOB
*
* @access private
* @static
@ -691,13 +726,20 @@ class Database extends AbstractData
*/
private static function _getDataType()
{
return self::$_type === 'pgsql' ? 'TEXT' : 'BLOB';
switch (self::$_type) {
case 'oci':
return 'CLOB';
case 'pgsql':
return 'TEXT';
default:
return 'BLOB';
}
}
/**
* get the attachment type, depending on the database driver
*
* PostgreSQL uses a different API for BLOBs then SQL, hence we use TEXT
* PostgreSQL and OCI use different APIs for BLOBs then SQL, hence we use TEXT and CLOB
*
* @access private
* @static
@ -705,7 +747,33 @@ class Database extends AbstractData
*/
private static function _getAttachmentType()
{
return self::$_type === 'pgsql' ? 'TEXT' : 'MEDIUMBLOB';
switch (self::$_type) {
case 'oci':
return 'CLOB';
case 'pgsql':
return 'TEXT';
default:
return 'MEDIUMBLOB';
}
}
/**
* get the meta type, depending on the database driver
*
* OCI doesn't accept TEXT so it has to be VARCHAR2(4000)
*
* @access private
* @static
* @return string
*/
private static function _getMetaType()
{
switch (self::$_type) {
case 'oci':
return 'VARCHAR2(4000)';
default:
return 'TEXT';
}
}
/**
@ -719,17 +787,18 @@ class Database extends AbstractData
list($main_key, $after_key) = self::_getPrimaryKeyClauses();
$dataType = self::_getDataType();
$attachmentType = self::_getAttachmentType();
$metaType = self::_getMetaType();
self::$_db->exec(
'CREATE TABLE ' . self::_sanitizeIdentifier('paste') . ' ( ' .
"dataid CHAR(16) NOT NULL$main_key, " .
"data $attachmentType, " .
'postdate INT, ' .
'expiredate INT, ' .
'opendiscussion INT, ' .
'burnafterreading INT, ' .
'meta TEXT, ' .
"attachment $attachmentType, " .
"attachmentname $dataType$after_key );"
'CREATE TABLE "' . self::_sanitizeIdentifier('paste') . '" ( ' .
"\"dataid\" CHAR(16) NOT NULL$main_key, " .
"\"data\" $attachmentType, " .
'"postdate" INT, ' .
'"expiredate" INT, ' .
'"opendiscussion" INT, ' .
'"burnafterreading" INT, ' .
"\"meta\" $metaType, " .
"\"attachment\" $attachmentType, " .
"\"attachmentname\" $dataType$after_key )"
);
}
@ -744,19 +813,35 @@ class Database extends AbstractData
list($main_key, $after_key) = self::_getPrimaryKeyClauses();
$dataType = self::_getDataType();
self::$_db->exec(
'CREATE TABLE ' . self::_sanitizeIdentifier('comment') . ' ( ' .
"dataid CHAR(16) NOT NULL$main_key, " .
'pasteid CHAR(16), ' .
'parentid CHAR(16), ' .
"data $dataType, " .
"nickname $dataType, " .
"vizhash $dataType, " .
"postdate INT$after_key );"
'CREATE TABLE "' . self::_sanitizeIdentifier('comment') . '" ( ' .
"\"dataid\" CHAR(16) NOT NULL$main_key, " .
'"pasteid" CHAR(16), ' .
'"parentid" CHAR(16), ' .
"\"data\" $dataType, " .
"\"nickname\" $dataType, " .
"\"vizhash\" $dataType, " .
"\"postdate\" INT$after_key )"
);
if (self::$_type === 'oci') {
self::$_db->exec(
'CREATE INDEX IF NOT EXISTS comment_parent ON ' .
self::_sanitizeIdentifier('comment') . '(pasteid);'
'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")\';
exception
when already_exists or columns_indexed then
NULL;
end;'
);
} else {
self::$_db->exec(
'CREATE INDEX IF NOT EXISTS "comment_parent" ON "' .
self::_sanitizeIdentifier('comment') . '" ("pasteid")'
);
}
}
/**
@ -768,17 +853,37 @@ class Database extends AbstractData
private static function _createConfigTable()
{
list($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') .
" ( id CHAR(16) NOT NULL$main_key, value TEXT$after_key );"
'CREATE TABLE "' . self::_sanitizeIdentifier('config') .
"\" ( \"id\" $charType NOT NULL$main_key, \"value\" $textType$after_key )"
);
self::_exec(
'INSERT INTO ' . self::_sanitizeIdentifier('config') .
' VALUES(?,?)',
'INSERT INTO "' . self::_sanitizeIdentifier('config') .
'" VALUES(?,?)',
array('VERSION', Controller::VERSION)
);
}
/**
* sanitizes CLOB values used with OCI
*
* 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)
{
if (is_resource($value)) {
$value = stream_get_contents($value);
}
return $value;
}
/**
* sanitizes identifiers
*
@ -807,43 +912,46 @@ class Database extends AbstractData
case '0.21':
// create the meta column if necessary (pre 0.21 change)
try {
self::$_db->exec('SELECT meta FROM ' . self::_sanitizeIdentifier('paste') . ' LIMIT 1;');
self::$_db->exec(
'SELECT "meta" FROM "' . self::_sanitizeIdentifier('paste') . '" ' .
(self::$_type === 'oci' ? 'FETCH NEXT 1 ROWS ONLY' : 'LIMIT 1')
);
} catch (PDOException $e) {
self::$_db->exec('ALTER TABLE ' . self::_sanitizeIdentifier('paste') . ' ADD COLUMN meta TEXT;');
self::$_db->exec('ALTER TABLE "' . self::_sanitizeIdentifier('paste') . '" ADD COLUMN "meta" TEXT');
}
// SQLite only allows one ALTER statement at a time...
self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
" ADD COLUMN attachment $attachmentType;"
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') .
"\" ADD COLUMN \"attachment\" $attachmentType"
);
self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') . " ADD COLUMN attachmentname $dataType;"
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') . "\" ADD COLUMN \"attachmentname\" $dataType"
);
// SQLite doesn't support MODIFY, but it allows TEXT of similar
// size as BLOB, so there is no need to change it there
if (self::$_type !== 'sqlite') {
self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
" ADD PRIMARY KEY (dataid), MODIFY COLUMN data $dataType;"
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') .
"\" 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;"
'ALTER TABLE "' . self::_sanitizeIdentifier('comment') .
"\" ADD PRIMARY KEY (\"dataid\"), MODIFY COLUMN \"data\" $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);'
'CREATE UNIQUE INDEX IF NOT EXISTS "paste_dataid" ON "' .
self::_sanitizeIdentifier('paste') . '" ("dataid")'
);
self::$_db->exec(
'CREATE UNIQUE INDEX IF NOT EXISTS comment_dataid ON ' .
self::_sanitizeIdentifier('comment') . '(dataid);'
'CREATE UNIQUE INDEX IF NOT EXISTS "comment_dataid" ON "' .
self::_sanitizeIdentifier('comment') . '" ("dataid")'
);
}
self::$_db->exec(
'CREATE INDEX IF NOT EXISTS comment_parent ON ' .
self::_sanitizeIdentifier('comment') . '(pasteid);'
'CREATE INDEX IF NOT EXISTS "comment_parent" ON "' .
self::_sanitizeIdentifier('comment') . '" ("pasteid")'
);
// no break, continue with updates for 0.22 and later
case '1.3':
@ -852,15 +960,15 @@ class Database extends AbstractData
// to change it there
if (self::$_type !== 'sqlite' && self::$_type !== 'pgsql') {
self::$_db->exec(
'ALTER TABLE ' . self::_sanitizeIdentifier('paste') .
" MODIFY COLUMN data $attachmentType;"
'ALTER TABLE "' . self::_sanitizeIdentifier('paste') .
"\" MODIFY COLUMN \"data\" $attachmentType"
);
}
// no break, continue with updates for all newer versions
default:
self::_exec(
'UPDATE ' . self::_sanitizeIdentifier('config') .
' SET value = ? WHERE id = ?',
'UPDATE "' . self::_sanitizeIdentifier('config') .
'" SET "value" = ? WHERE "id" = ?',
array(Controller::VERSION, 'VERSION')
);
}

12
tst/Data/DatabaseTest.php
View File

@ -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));
}
}