wp-database-backup / includes / admin / Destination / Google / google-api-php-client / src / service / Google_Utils.php

Google_Utils.php in WP Database Backup – Unlimited Database & Files Backup by Backup for WP 6.11, at includes/admin/Destination/Google/google-api-php-client/src/service/Google_Utils.php

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1	<?php
2	/*
3	* Copyright 2011 Google Inc.
4	*
5	* Licensed under the Apache License, Version 2.0 (the "License");
6	* you may not use this file except in compliance with the License.
7	* You may obtain a copy of the License at
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*/
17
18	/**
19	* Collection of static utility methods used for convenience across
20	* the client library.
21	*
22	* @author Chirag Shah <chirags@google.com>
23	*/
24	class Google_Utils {
25	public static function urlSafeB64Encode($data) {
26	$b64 = base64_encode($data);
27	$b64 = str_replace(array('+', '/', '\r', '\n', '='),
28	array('-', '_'),
29	$b64);
30	return $b64;
31	}
32
33	public static function urlSafeB64Decode($b64) {
34	$b64 = str_replace(array('-', '_'),
35	array('+', '/'),
36	$b64);
37	return base64_decode($b64);
38	}
39
40	/**
41	* Misc function used to count the number of bytes in a post body, in the world of multi-byte chars
42	* and the unpredictability of strlen/mb_strlen/sizeof, this is the only way to do that in a sane
43	* manner at the moment.
44	*
45	* This algorithm was originally developed for the
46	* Solar Framework by Paul M. Jones
47	*
48	* @link http://solarphp.com/
49	* @link http://svn.solarphp.com/core/trunk/Solar/Json.php
50	* @link http://framework.zend.com/svn/framework/standard/trunk/library/Zend/Json/Decoder.php
51	* @param string $str
52	* @return int The number of bytes in a string.
53	*/
54	static public function getStrLen($str) {
55	$strlenVar = strlen($str);
56	$d = $ret = 0;
57	for ($count = 0; $count < $strlenVar; ++ $count) {
58	$ordinalValue = ord($str[$ret]);
59	switch (true) {
60	case (($ordinalValue >= 0x20) && ($ordinalValue <= 0x7F)):
61	// characters U-00000000 - U-0000007F (same as ASCII)
62	$ret ++;
63	break;
64
65	case (($ordinalValue & 0xE0) == 0xC0):
66	// characters U-00000080 - U-000007FF, mask 110XXXXX
67	// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
68	$ret += 2;
69	break;
70
71	case (($ordinalValue & 0xF0) == 0xE0):
72	// characters U-00000800 - U-0000FFFF, mask 1110XXXX
73	// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
74	$ret += 3;
75	break;
76
77	case (($ordinalValue & 0xF8) == 0xF0):
78	// characters U-00010000 - U-001FFFFF, mask 11110XXX
79	// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
80	$ret += 4;
81	break;
82
83	case (($ordinalValue & 0xFC) == 0xF8):
84	// characters U-00200000 - U-03FFFFFF, mask 111110XX
85	// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
86	$ret += 5;
87	break;
88
89	case (($ordinalValue & 0xFE) == 0xFC):
90	// characters U-04000000 - U-7FFFFFFF, mask 1111110X
91	// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
92	$ret += 6;
93	break;
94	default:
95	$ret ++;
96	}
97	}
98	return $ret;
99	}
100
101	/**
102	* Normalize all keys in an array to lower-case.
103	* @param array $arr
104	* @return array Normalized array.
105	*/
106	public static function normalize($arr) {
107	if (!is_array($arr)) {
108	return array();
109	}
110
111	$normalized = array();
112	foreach ($arr as $key => $val) {
113	$normalized[strtolower($key)] = $val;
114	}
115	return $normalized;
116	}
117	}