1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* Copyright 2017 Facebook, Inc. |
4
|
|
|
* |
5
|
|
|
* You are hereby granted a non-exclusive, worldwide, royalty-free license to |
6
|
|
|
* use, copy, modify, and distribute this software in source code or binary |
7
|
|
|
* form for use in connection with the web services and APIs provided by |
8
|
|
|
* Facebook. |
9
|
|
|
* |
10
|
|
|
* As with any software that integrates with the Facebook platform, your use |
11
|
|
|
* of this software is subject to the Facebook Developer Principles and |
12
|
|
|
* Policies [http://developers.facebook.com/policy/]. This copyright notice |
13
|
|
|
* shall be included in all copies or substantial portions of the software. |
14
|
|
|
* |
15
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
16
|
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17
|
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
18
|
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
19
|
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
20
|
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
21
|
|
|
* DEALINGS IN THE SOFTWARE. |
22
|
|
|
*/ |
23
|
|
|
namespace Facebook\Url; |
24
|
|
|
|
25
|
|
|
/** |
26
|
|
|
* @package Facebook |
27
|
|
|
*/ |
28
|
|
|
class UrlManipulator |
29
|
|
|
{ |
30
|
|
|
/** |
31
|
|
|
* Remove params from a URL. |
32
|
|
|
* |
33
|
|
|
* @param string $url the URL to filter |
34
|
|
|
* @param array $paramsToFilter the params to filter from the URL |
35
|
|
|
* |
36
|
|
|
* @return string the URL with the params removed |
37
|
|
|
*/ |
38
|
102 |
|
public static function removeParamsFromUrl($url, array $paramsToFilter) |
39
|
|
|
{ |
40
|
102 |
|
$parts = parse_url($url); |
41
|
|
|
|
42
|
102 |
|
$query = ''; |
43
|
102 |
|
if (isset($parts['query'])) { |
44
|
37 |
|
$params = []; |
45
|
37 |
|
parse_str($parts['query'], $params); |
46
|
|
|
|
47
|
|
|
// Remove query params |
48
|
37 |
|
foreach ($paramsToFilter as $paramName) { |
49
|
37 |
|
unset($params[$paramName]); |
50
|
|
|
} |
51
|
|
|
|
52
|
37 |
|
if (count($params) > 0) { |
53
|
35 |
|
$query = '?' . http_build_query($params, null, '&'); |
54
|
|
|
} |
55
|
|
|
} |
56
|
|
|
|
57
|
102 |
|
$scheme = isset($parts['scheme']) ? $parts['scheme'] . '://' : ''; |
58
|
102 |
|
$host = isset($parts['host']) ? $parts['host'] : ''; |
59
|
102 |
|
$port = isset($parts['port']) ? ':' . $parts['port'] : ''; |
60
|
102 |
|
$path = isset($parts['path']) ? $parts['path'] : ''; |
61
|
102 |
|
$fragment = isset($parts['fragment']) ? '#' . $parts['fragment'] : ''; |
62
|
|
|
|
63
|
102 |
|
return $scheme . $host . $port . $path . $query . $fragment; |
64
|
|
|
} |
65
|
|
|
|
66
|
|
|
/** |
67
|
|
|
* Gracefully appends params to the URL. |
68
|
|
|
* |
69
|
|
|
* @param string $url the URL that will receive the params |
70
|
|
|
* @param array $newParams the params to append to the URL |
71
|
|
|
* |
72
|
|
|
* @return string |
73
|
|
|
*/ |
74
|
15 |
|
public static function appendParamsToUrl($url, array $newParams = []) |
75
|
|
|
{ |
76
|
15 |
|
if (empty($newParams)) { |
77
|
1 |
|
return $url; |
78
|
|
|
} |
79
|
|
|
|
80
|
15 |
|
if (strpos($url, '?') === false) { |
81
|
12 |
|
return $url . '?' . http_build_query($newParams, null, '&'); |
82
|
|
|
} |
83
|
|
|
|
84
|
4 |
|
list($path, $query) = explode('?', $url, 2); |
85
|
4 |
|
$existingParams = []; |
86
|
4 |
|
parse_str($query, $existingParams); |
87
|
|
|
|
88
|
|
|
// Favor params from the original URL over $newParams |
89
|
4 |
|
$newParams = array_merge($newParams, $existingParams); |
90
|
|
|
|
91
|
|
|
// Sort for a predicable order |
92
|
4 |
|
ksort($newParams); |
93
|
|
|
|
94
|
4 |
|
return $path . '?' . http_build_query($newParams, null, '&'); |
95
|
|
|
} |
96
|
|
|
|
97
|
|
|
/** |
98
|
|
|
* Returns the params from a URL in the form of an array. |
99
|
|
|
* |
100
|
|
|
* @param string $url the URL to parse the params from |
101
|
|
|
* |
102
|
|
|
* @return array |
103
|
|
|
*/ |
104
|
96 |
|
public static function getParamsAsArray($url) |
105
|
|
|
{ |
106
|
96 |
|
$query = parse_url($url, PHP_URL_QUERY); |
107
|
96 |
|
if (!$query) { |
108
|
67 |
|
return []; |
109
|
|
|
} |
110
|
30 |
|
$params = []; |
111
|
30 |
|
parse_str($query, $params); |
112
|
|
|
|
113
|
30 |
|
return $params; |
114
|
|
|
} |
115
|
|
|
|
116
|
|
|
/** |
117
|
|
|
* Adds the params of the first URL to the second URL. |
118
|
|
|
* |
119
|
|
|
* Any params that already exist in the second URL will go untouched. |
120
|
|
|
* |
121
|
|
|
* @param string $urlToStealFrom the URL harvest the params from |
122
|
|
|
* @param string $urlToAddTo the URL that will receive the new params |
123
|
|
|
* |
124
|
|
|
* @return string the $urlToAddTo with any new params from $urlToStealFrom |
125
|
|
|
*/ |
126
|
4 |
|
public static function mergeUrlParams($urlToStealFrom, $urlToAddTo) |
127
|
|
|
{ |
128
|
4 |
|
$newParams = static::getParamsAsArray($urlToStealFrom); |
129
|
|
|
// Nothing new to add, return as-is |
130
|
4 |
|
if (!$newParams) { |
|
|
|
|
131
|
2 |
|
return $urlToAddTo; |
132
|
|
|
} |
133
|
|
|
|
134
|
2 |
|
return static::appendParamsToUrl($urlToAddTo, $newParams); |
135
|
|
|
} |
136
|
|
|
|
137
|
|
|
/** |
138
|
|
|
* Check for a "/" prefix and prepend it if not exists. |
139
|
|
|
* |
140
|
|
|
* @param null|string $string |
141
|
|
|
* |
142
|
|
|
* @return string |
143
|
|
|
*/ |
144
|
23 |
|
public static function forceSlashPrefix($string) |
145
|
|
|
{ |
146
|
23 |
|
if (!$string) { |
|
|
|
|
147
|
17 |
|
return ''; |
148
|
|
|
} |
149
|
|
|
|
150
|
23 |
|
return strpos($string, '/') === 0 ? $string : '/' . $string; |
151
|
|
|
} |
152
|
|
|
|
153
|
|
|
/** |
154
|
|
|
* Trims off the hostname and Graph version from a URL. |
155
|
|
|
* |
156
|
|
|
* @param string $urlToTrim the URL the needs the surgery |
157
|
|
|
* |
158
|
|
|
* @return string the $urlToTrim with the hostname and Graph version removed |
159
|
|
|
*/ |
160
|
4 |
|
public static function baseGraphUrlEndpoint($urlToTrim) |
161
|
|
|
{ |
162
|
4 |
|
return '/' . preg_replace('/^https:\/\/.+\.facebook\.com(\/v.+?)?\//', '', $urlToTrim); |
163
|
|
|
} |
164
|
|
|
} |
165
|
|
|
|
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)
or! empty(...)
instead.