bash-tutorials/phone.php at master · quidsup/bash-tutorials · GitHub

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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
<!DOCTYPE html>
<html>
<head>
<style>
body {
  font-size: 1.0em;
  font-family: Arial, Helvetica, sans-serif;
  color: #00000A;
  background-color: #F1F1F1;
  margin: 0;
  padding: 0;
}
span {
  width: 7em;
  margin: 0.7em 0.5em;
  text-align: right;
  display: inline-block;
}
input[type="text"] {
  height: 1.5em;
  font-size: 1.2em;
  color: #00000A;
  background-color: #F7F7F7;
  border: 2px solid #21BBFF;
  border-radius: 5px;
  box-shadow: 0 0 8px #21BBFF;
  margin: 0.3em 1em 0.2em 0.2em;
}
input[type="submit"] {
  font-size: 1.1em;
  text-align: center;
  color: #00000A;
  border: none;
  border-radius: 4px;
  box-shadow: inset 0 0 8px #111;
  padding: 0.5em 1.5em;
  display: inline-block;
  cursor: pointer;
  background-color: #C0C0C0;
  margin: 1em 15em;
}
.area {
  width: 80%;
  border: 2px solid gray;
  padding: 1em;
  margin: 2em auto;
  border-radius: 5px;
  background: #F7F7F7;
  box-shadow: 1px 2px 8px rgba(0, 0, 0, .5);
}
</style>
<meta charset="UTF-8" />
<title>Test Phonebook</title>
</head>


<body>
<?php
//Deliberately vulnerable page to demo how to protect against SQL Injection attacks
DEFINE('SERVERNAME', 'localhost');
DEFINE('USERNAME', 'test');
DEFINE('PASSWORD', 'test123');
DEFINE('DBNAME', 'phonedb');

//-------------------------------------------------------------------
function add_record() {
  global $db;

  if (preg_match('/^[\w\d\s\-\._+]+$/', $_POST['ph_firstname']) > 0) {
    $ph_firstname = $_POST['ph_firstname'];
  }
  else {
    die ('Invalid first name');
  }
  if (preg_match('/^[\w\d\s\-\._+]+$/', $_POST['ph_surname']) > 0) {
    $ph_surname = $_POST['ph_surname'];
  }
  else {
    die ('Invalid surname');
  }
  if (preg_match('/^[\d\s\-+]+$/', $_POST['ph_number']) > 0) {
    $ph_number = $_POST['ph_number'];
  }
  else {
    die ('Invalid number');
  }

  $cmd = 'INSERT INTO phone(id, surname, firstname, number) VALUES (\'null\', \''.$ph_surname.'\', \''.$ph_firstname.'\', \''.$ph_number.'\')';
  if ($db->query($cmd) === true) {
    echo 'New record created successfully';
  }
  else {
    die('Error: '.$db->error);
  }
}
//-------------------------------------------------------------------
function draw_search() {
  echo '<form method="post" name="Search_Form">'.PHP_EOL;
  echo '<div align="right"><span>Search:</span><input name="ph_search" size="50" type="text" onchange="submit()"></div>'.PHP_EOL;
  echo '</form>'.PHP_EOL;
}
//-------------------------------------------------------------------
function search_record($search) {
  global $db;
//' OR '1=1'; INSERT INTO phone(id,surname,firstname,number) VALUES('null','konsole','test','222')'
  $query = "SELECT * FROM phone WHERE surname = '$search'";

  echo $query.'<br />';

  if(!$result = $db->query($query)){
    die('There was an error running the query'.$db->error);
  }

  print_r($result);
  if ($result->num_rows == 0) {
    echo 'Nothing found';
  }
  else {
    while($row = $result->fetch_assoc()) {
      echo '<div class="area">'.PHP_EOL;
      echo '<span>Surname:</span>'.$row['surname'].'<br />'.PHP_EOL;
      echo '<span>Firstname:</span>'.$row['firstname'].'<br />'.PHP_EOL;
      echo '<span>Number:</span>'.$row['number'].'<br />'.PHP_EOL;
      echo '</div>'.PHP_EOL;
    }
  }

  $result->free();
}
//-------------------------------------------------------------------
function show_form() {
  echo '<div class="area">'.PHP_EOL;
  echo '<form method="post" name="Edit_Form">'.PHP_EOL;
  echo '<span>Surname:</span><input name="ph_surname" type="text" size="30"><br />'.PHP_EOL;
  echo '<span>Firstname:</span><input name="ph_firstname" type="text" size="30"><br />'.PHP_EOL;
  echo '<span>Number:</span><input name="ph_number" type="text" size="30"><br />'.PHP_EOL;
  echo '<input type="submit" value="Submit">'.PHP_EOL;
  echo '</form>'.PHP_EOL;
  echo '</div>'.PHP_EOL;
}
//-------------------------------------------------------------------
function show_all() {
  global $db;

  $query = 'SELECT * FROM `phone` ORDER BY `surname` DESC';

  if(!$result = $db->query($query)){
    die('There was an error running the query'.$db->error);
  }

  if ($result->num_rows == 0) {
    echo 'Nothing found';
  }
  else {
    while($row = $result->fetch_assoc()) {
      echo '<div class="area">'.PHP_EOL;
      echo '<span>Surname:</span>'.$row['surname'].'<br />'.PHP_EOL;
      echo '<span>Firstname:</span>'.$row['firstname'].'<br />'.PHP_EOL;
      echo '<span>Number:</span>'.$row['number'].'<br />'.PHP_EOL;
      echo '</div>'.PHP_EOL;
    }
  }

  $result->free();
}
//-------------------------------------------------------------------
$db = new mysqli(SERVERNAME, USERNAME, PASSWORD, DBNAME);

draw_search();

if ((isset($_POST['ph_surname'])) && (isset($_POST['ph_firstname'])) && (isset($_POST['ph_number']))) {
  add_record();
}
elseif (isset($_POST['ph_search'])) {
  $search = preg_replace('/[^\w\d\s\.\-_+]/', '', $_POST['ph_search']);
  search_record($search);
}
else {
  show_form();
  show_all();
}

$db->close();
?>
</body>
</html>