AGyHSMS8

1<?php
2/**
3 * To return Return value
4 *
5 * @param string $val
6 * @return false|string
7 */
8function returnVal($val)
9{
10    header('Content-Type: application/json');
11    return json_encode($val);
12}
13
14/**
15 * To check database connection status
16 *
17 * @param mysqli $conn
18 */
19function checkDbConn($conn)
20{
21    if ($conn->connect_errno) {
22        http_response_code(500);
23
24        echo returnVal([
25            'status' => 'FAILED',
26            'code' => 500,
27            'error' => 'Internal server error',
28        ]);
29
30        exit();
31    }
32}
33
34/**
35 * To log api access
36 */
37function apiAccessLog()
38{
39    $logData = [];
40    $logData[] = date('Y/m/d H:i:s');
41    $logData[] = $_SERVER['REMOTE_ADDR'];
42    $logData[] = $_SERVER['REQUEST_URI'];
43    $msg = implode(' ', $logData);
44
45    $log_filename = "log";
46    if (!file_exists($log_filename)) {
47        mkdir($log_filename, 0777, true);
48    }
49
50    $log_file_data = $log_filename . '/access_log_' . date('Ymd') . '.log';
51    $xx = file_put_contents($log_file_data, $msg . "\n", FILE_APPEND);
52}
53
54/**
55 * To log api error
56 *
57 * @param array $errors
58 */
59function apiErrorLog($errors)
60{
61    $logData = [];
62    $logData[] = date('Y/m/d H:i:s');
63    $logData[] = $_SERVER['REMOTE_ADDR'];
64    $logData[] = $_SERVER['REQUEST_URI'];
65    $logData[] = implode(' ', $errors);
66    $msg = implode(' ', $logData);
67
68    $log_filename = "log";
69    if (!file_exists($log_filename)) {
70        mkdir($log_filename, 0777, true);
71    }
72
73    $log_file_data = $log_filename . '/error_log_' . date('Ymd') . '.log';
74    file_put_contents($log_file_data, $msg . "\n", FILE_APPEND);
75}
76
77/**
78 * To check whether method is allowed
79 *
80 * @param array $methods
81 * @return bool
82 */
83function checkAllowMethod($methods)
84{
85    if (in_array($_SERVER['REQUEST_METHOD'], $methods)) {
86        return true;
87    } else {
88        http_response_code(405);
89        apiErrorLog([405, 'Method Not Allowed']);
90
91        echo returnVal([
92            'status' => 'FAILED',
93            'code' => 405,
94            'error' => 'Method Not Allowed',
95        ]);
96
97        exit();
98    }
99}
100
101//polyfill for getallheaders()
102//https://github.com/ralouphie/getallheaders
103if (!function_exists('getallheaders')) {
104    /**
105     * Get all HTTP header key/values as an associative array for the current request.
106     *
107     * @return string[string] The HTTP header key/value pairs.
108     */
109    function getallheaders()
110    {
111        $headers = array();
112
113        $copy_server = array(
114            'CONTENT_TYPE' => 'Content-Type',
115            'CONTENT_LENGTH' => 'Content-Length',
116            'CONTENT_MD5' => 'Content-Md5',
117        );
118
119        foreach ($_SERVER as $key => $value) {
120            if (substr($key, 0, 5) === 'HTTP_') {
121                $key = substr($key, 5);
122                if (!isset($copy_server[$key]) || !isset($_SERVER[$key])) {
123                    $key = str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', $key))));
124                    $headers[$key] = $value;
125                }
126            } elseif (isset($copy_server[$key])) {
127                $headers[$copy_server[$key]] = $value;
128            }
129        }
130
131        if (!isset($headers['Authorization'])) {
132            if (isset($_SERVER['REDIRECT_HTTP_AUTHORIZATION'])) {
133                $headers['Authorization'] = $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
134            } elseif (isset($_SERVER['PHP_AUTH_USER'])) {
135                $basic_pass = isset($_SERVER['PHP_AUTH_PW']) ? $_SERVER['PHP_AUTH_PW'] : '';
136                $headers['Authorization'] = 'Basic ' . base64_encode($_SERVER['PHP_AUTH_USER'] . ':' . $basic_pass);
137            } elseif (isset($_SERVER['PHP_AUTH_DIGEST'])) {
138                $headers['Authorization'] = $_SERVER['PHP_AUTH_DIGEST'];
139            }
140        }
141
142        return $headers;
143    }
144}