forked from vrana/adminer
/
user.inc.php
170 lines (164 loc) · 7.4 KB
/
user.inc.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
<?php
$USER = $_GET["user"];
$privileges = array("" => array("All privileges" => ""));
foreach (get_rows("SHOW PRIVILEGES") as $row) {
foreach (explode(",", ($row["Privilege"] == "Grant option" ? "" : $row["Context"])) as $context) {
$privileges[$context][$row["Privilege"]] = $row["Comment"];
}
}
$privileges["Server Admin"] += $privileges["File access on server"];
$privileges["Databases"]["Create routine"] = $privileges["Procedures"]["Create routine"]; // MySQL bug #30305
unset($privileges["Procedures"]["Create routine"]);
$privileges["Columns"] = array();
foreach (array("Select", "Insert", "Update", "References") as $val) {
$privileges["Columns"][$val] = $privileges["Tables"][$val];
}
unset($privileges["Server Admin"]["Usage"]);
foreach ($privileges["Tables"] as $key => $val) {
unset($privileges["Databases"][$key]);
}
$new_grants = array();
if ($_POST) {
foreach ($_POST["objects"] as $key => $val) {
$new_grants[$val] = (array) $new_grants[$val] + (array) $_POST["grants"][$key];
}
}
$grants = array();
$old_pass = "";
if (isset($_GET["host"]) && ($result = $connection->query("SHOW GRANTS FOR " . q($USER) . "@" . q($_GET["host"])))) { //! use information_schema for MySQL 5 - column names in column privileges are not escaped
while ($row = $result->fetch_row()) {
if (preg_match('~GRANT (.*) ON (.*) TO ~', $row[0], $match) && preg_match_all('~ *([^(,]*[^ ,(])( *\\([^)]+\\))?~', $match[1], $matches, PREG_SET_ORDER)) { //! escape the part between ON and TO
foreach ($matches as $val) {
if ($val[1] != "USAGE") {
$grants["$match[2]$val[2]"][$val[1]] = true;
}
if (ereg(' WITH GRANT OPTION', $row[0])) { //! don't check inside strings and identifiers
$grants["$match[2]$val[2]"]["GRANT OPTION"] = true;
}
}
}
if (preg_match("~ IDENTIFIED BY PASSWORD '([^']+)~", $row[0], $match)) {
$old_pass = $match[1];
}
}
}
if ($_POST && !$error) {
$old_user = (isset($_GET["host"]) ? q($USER) . "@" . q($_GET["host"]) : "''");
$new_user = q($_POST["user"]) . "@" . q($_POST["host"]); // if $_GET["host"] is not set then $new_user is always different
$pass = q($_POST["pass"]);
if ($_POST["drop"]) {
query_redirect("DROP USER $old_user", ME . "privileges=", lang('User has been dropped.'));
} else {
$created = false;
if ($old_user != $new_user) {
$created = queries(($connection->server_info < 5 ? "GRANT USAGE ON *.* TO" : "CREATE USER") . " $new_user IDENTIFIED BY" . ($_POST["hashed"] ? " PASSWORD" : "") . " $pass");
$error = !$created;
} elseif ($_POST["pass"] != $old_pass || !$_POST["hashed"]) {
queries("SET PASSWORD FOR $new_user = " . ($_POST["hashed"] ? $pass : "PASSWORD($pass)"));
}
if (!$error) {
$revoke = array();
foreach ($new_grants as $object => $grant) {
if (isset($_GET["grant"])) {
$grant = array_filter($grant);
}
$grant = array_keys($grant);
if (isset($_GET["grant"])) {
// no rights to mysql.user table
$revoke = array_diff(array_keys(array_filter($new_grants[$object], 'strlen')), $grant);
} elseif ($old_user == $new_user) {
$old_grant = array_keys((array) $grants[$object]);
$revoke = array_diff($old_grant, $grant);
$grant = array_diff($grant, $old_grant);
unset($grants[$object]);
}
if (preg_match('~^(.+)\\s*(\\(.*\\))?$~U', $object, $match) && (
!grant("REVOKE", $revoke, $match[2], " ON $match[1] FROM $new_user") //! SQL injection
|| !grant("GRANT", $grant, $match[2], " ON $match[1] TO $new_user")
)) {
$error = true;
break;
}
}
}
if (!$error && isset($_GET["host"])) {
if ($old_user != $new_user) {
queries("DROP USER $old_user");
} elseif (!isset($_GET["grant"])) {
foreach ($grants as $object => $revoke) {
if (preg_match('~^(.+)(\\(.*\\))?$~U', $object, $match)) {
grant("REVOKE", array_keys($revoke), $match[2], " ON $match[1] FROM $new_user");
}
}
}
}
queries_redirect(ME . "privileges=", (isset($_GET["host"]) ? lang('User has been altered.') : lang('User has been created.')), !$error);
if ($created) {
// delete new user in case of an error
$connection->query("DROP USER $new_user");
}
}
}
page_header((isset($_GET["host"]) ? lang('Username') . ": " . h("$USER@$_GET[host]") : lang('Create user')), $error, array("privileges" => array('', lang('Privileges'))));
if ($_POST) {
$row = $_POST;
$grants = $new_grants;
} else {
$row = $_GET + array("host" => $connection->result("SELECT SUBSTRING_INDEX(CURRENT_USER, '@', -1)")); // create user on the same domain by default
$row["pass"] = $old_pass;
if ($old_pass != "") {
$row["hashed"] = true;
}
$grants[(DB != "" && !isset($_GET["host"]) ? idf_escape(addcslashes(DB, "%_")) : "") . ".*"] = array();
}
?>
<form action="" method="post">
<table cellspacing="0">
<tr><th><?php echo lang('Server'); ?><td><input name="host" maxlength="60" value="<?php echo h($row["host"]); ?>">
<tr><th><?php echo lang('Username'); ?><td><input name="user" maxlength="16" value="<?php echo h($row["user"]); ?>">
<tr><th><?php echo lang('Password'); ?><td><input id="pass" name="pass" value="<?php echo h($row["pass"]); ?>">
<?php if (!$row["hashed"]) { ?><script type="text/javascript">typePassword(document.getElementById('pass'));</script><?php } ?>
<?php echo checkbox("hashed", 1, $row["hashed"], lang('Hashed'), "typePassword(this.form['pass'], this.checked);"); ?>
</table>
<?php
//! MAX_* limits, REQUIRE
echo "<table cellspacing='0'>\n";
echo "<thead><tr><th colspan='2'><a href='http://dev.mysql.com/doc/refman/" . substr($connection->server_info, 0, 3) . "/en/grant.html#priv_level' target='_blank' rel='noreferrer'>" . lang('Privileges') . "</a>";
$i = 0;
foreach ($grants as $object => $grant) {
echo '<th>' . ($object != "*.*" ? "<input name='objects[$i]' value='" . h($object) . "' size='10'>" : "<input type='hidden' name='objects[$i]' value='*.*' size='10'>*.*"); //! separate db, table, columns, PROCEDURE|FUNCTION, routine
$i++;
}
echo "</thead>\n";
foreach (array(
"" => "",
"Server Admin" => lang('Server'),
"Databases" => lang('Database'),
"Tables" => lang('Table'),
"Columns" => lang('Column'),
"Procedures" => lang('Routine'),
) as $context => $desc) {
foreach ((array) $privileges[$context] as $privilege => $comment) {
echo "<tr" . odd() . "><td" . ($desc ? ">$desc<td" : " colspan='2'") . ' lang="en" title="' . h($comment) . '">' . h($privilege);
$i = 0;
foreach ($grants as $object => $grant) {
$name = "'grants[$i][" . h(strtoupper($privilege)) . "]'";
$value = $grant[strtoupper($privilege)];
if ($context == "Server Admin" && $object != (isset($grants["*.*"]) ? "*.*" : ".*")) {
echo "<td> ";
} elseif (isset($_GET["grant"])) {
echo "<td><select name=$name><option><option value='1'" . ($value ? " selected" : "") . ">" . lang('Grant') . "<option value='0'" . ($value == "0" ? " selected" : "") . ">" . lang('Revoke') . "</select>";
} else {
echo "<td align='center'><input type='checkbox' name=$name value='1'" . ($value ? " checked" : "") . ($privilege == "All privileges" ? " id='grants-$i-all'" : ($privilege == "Grant option" ? "" : " onclick=\"if (this.checked) formUncheck('grants-$i-all');\"")) . ">"; //! uncheck all except grant if all is checked
}
$i++;
}
}
}
echo "</table>\n";
?>
<p>
<input type="submit" value="<?php echo lang('Save'); ?>">
<?php if (isset($_GET["host"])) { ?><input type="submit" name="drop" value="<?php echo lang('Drop'); ?>"<?php echo confirm(); ?>><?php } ?>
<input type="hidden" name="token" value="<?php echo $token; ?>">
</form>