|
1
|
|
|
<?php
|
|
2
|
|
|
namespace Ako\Shorturl\Drivers;
|
|
3
|
|
|
|
|
4
|
|
|
use Illuminate\Support\Str;
|
|
5
|
|
|
use Ako\Shorturl\Models\Link;
|
|
6
|
|
|
|
|
7
|
|
|
class LocalDriver implements BaseDriver
|
|
8
|
|
|
{
|
|
9
|
|
|
protected $props = [];
|
|
10
|
|
|
protected $config, $main_str, $head, $tail, $base_url, $path;
|
|
11
|
|
|
|
|
12
|
|
|
public function __construct ()
|
|
13
|
|
|
{
|
|
14
|
|
|
$this->config = config('shorturl.drivers.local');
|
|
15
|
|
|
$this->main_str = $this->config['str_shuffled'];
|
|
16
|
|
|
$this->head = $this->main_str[0];
|
|
17
|
|
|
$this->tail = $this->main_str[strlen($this->main_str) - 1];
|
|
18
|
|
|
$this->checkCaseSensitive ();
|
|
19
|
|
|
}
|
|
20
|
|
|
|
|
21
|
|
|
/**
|
|
22
|
|
|
* @param string $url
|
|
23
|
|
|
*
|
|
24
|
|
|
* @return string
|
|
25
|
|
|
*/
|
|
26
|
|
|
public function expand (string $url) :string
|
|
27
|
|
|
{
|
|
28
|
|
|
$this->parseUrl($url);
|
|
29
|
|
|
$link = Link::where("short_path", $this->path)->first();
|
|
30
|
|
|
if ($link) {
|
|
31
|
|
|
$link->increment("clicks");
|
|
32
|
|
|
return $link->base_url . "/" . $link->long_path;
|
|
|
|
|
|
|
33
|
|
|
}
|
|
34
|
|
|
return "";
|
|
35
|
|
|
}
|
|
36
|
|
|
|
|
37
|
|
|
/**
|
|
38
|
|
|
* @param string $url
|
|
39
|
|
|
*
|
|
40
|
|
|
* @return string
|
|
41
|
|
|
* @throws \Exception
|
|
42
|
|
|
*/
|
|
43
|
|
|
public function shorten (string $url) :string
|
|
44
|
|
|
{
|
|
45
|
|
|
$this->parseUrl ($url);
|
|
46
|
|
|
|
|
47
|
|
|
// Check if given url has been shorten previously
|
|
48
|
|
|
$duplicate = Link::where(['long_path' => $this->path])->first();
|
|
49
|
|
|
if ($duplicate)
|
|
50
|
|
|
return $duplicate->base_url . "/" . $duplicate->short_path;
|
|
|
|
|
|
|
51
|
|
|
|
|
52
|
|
|
$short_path = $this->getNextShortpath();
|
|
53
|
|
|
|
|
54
|
|
|
try {
|
|
55
|
|
|
Link::create([
|
|
56
|
|
|
"long_path" => $this->path,
|
|
57
|
|
|
"short_path" => $short_path,
|
|
58
|
|
|
'base_url' => $this->base_url,
|
|
59
|
|
|
'properties' => $this->props]
|
|
60
|
|
|
);
|
|
61
|
|
|
} catch (\Exception $e) {
|
|
62
|
|
|
// If it is duplicate entry exception
|
|
63
|
|
|
// try to insert a new entry
|
|
64
|
|
|
if ($e instanceof \Illuminate\Database\QueryException && $e->getCode() == "23000") {
|
|
65
|
|
|
return $this->shorten($url);
|
|
66
|
|
|
}
|
|
67
|
|
|
}
|
|
68
|
|
|
return $this->base_url . "/" . $short_path;
|
|
69
|
|
|
}
|
|
70
|
|
|
|
|
71
|
|
|
/**
|
|
72
|
|
|
* Git the first short url
|
|
73
|
|
|
*
|
|
74
|
|
|
* @return string
|
|
75
|
|
|
*/
|
|
76
|
|
|
private function getFirstUrl () : string
|
|
77
|
|
|
{
|
|
78
|
|
|
$min_length = $this->config['min_length'];
|
|
79
|
|
|
$short_path = "";
|
|
80
|
|
|
for ($i = 0; $i < $min_length; $i++)
|
|
81
|
|
|
$short_path .= $this->head;
|
|
82
|
|
|
return $short_path;
|
|
83
|
|
|
}
|
|
84
|
|
|
|
|
85
|
|
|
/**
|
|
86
|
|
|
*
|
|
87
|
|
|
* Get the next short url based on the given item (it gets permutations one by one)
|
|
88
|
|
|
*
|
|
89
|
|
|
* @param string $current_perm
|
|
90
|
|
|
* @return string
|
|
91
|
|
|
*/
|
|
92
|
|
|
private function findNextPerm (string $current_perm) :string
|
|
93
|
|
|
{
|
|
94
|
|
|
if (!strlen($current_perm))
|
|
95
|
|
|
return $this->head;
|
|
96
|
|
|
|
|
97
|
|
|
$arr = array_reverse(str_split($current_perm));
|
|
98
|
|
|
foreach($arr as $key => $current_char) {
|
|
99
|
|
|
if ($current_char == $this->tail) {
|
|
100
|
|
|
$current_perm = Str::replaceLast($current_char, "", $current_perm);
|
|
101
|
|
|
return $this->findNextPerm($current_perm) . $this->head;
|
|
102
|
|
|
}
|
|
103
|
|
|
$next_char = str_split(Str::after($this->main_str, $current_char))[0];
|
|
104
|
|
|
return Str::replaceLast($current_char, $next_char, $current_perm);
|
|
105
|
|
|
}
|
|
|
|
|
|
|
106
|
|
|
}
|
|
107
|
|
|
|
|
108
|
|
|
/**
|
|
109
|
|
|
* @param array $props
|
|
110
|
|
|
*
|
|
111
|
|
|
* @return LocalDriver
|
|
112
|
|
|
*/
|
|
113
|
|
|
public function withProperties (array $props = []) :LocalDriver
|
|
114
|
|
|
{
|
|
115
|
|
|
$this->props = array_merge($this->props, $props);
|
|
116
|
|
|
return $this;
|
|
117
|
|
|
}
|
|
118
|
|
|
|
|
119
|
|
|
private function parseUrl (string $url)
|
|
120
|
|
|
{
|
|
121
|
|
|
$parse = parse_url($url);
|
|
122
|
|
|
$path = "";
|
|
123
|
|
|
if ($parse['path'] ?? null)
|
|
124
|
|
|
$path .= str::replaceFirst("/", "", $parse['path']);
|
|
125
|
|
|
if ($parse['query'] ?? null)
|
|
126
|
|
|
$path .= "?" . $parse['query'];
|
|
127
|
|
|
if ($parse['fragment'] ?? null)
|
|
128
|
|
|
$path .= "#" . $parse['fragment'];
|
|
129
|
|
|
|
|
130
|
|
|
$this->base_url = str_replace("/" . $path, "", $url);
|
|
131
|
|
|
$this->path = $path;
|
|
132
|
|
|
}
|
|
133
|
|
|
|
|
134
|
|
|
private function checkCaseSensitive ()
|
|
135
|
|
|
{
|
|
136
|
|
|
if ((!$this->config['case_sensitive'] ?? null)) {
|
|
137
|
|
|
// Remove upper cases from main string
|
|
138
|
|
|
$this->main_str = preg_replace("/(.)\\1+/", "$1", strtolower($this->main_str));
|
|
139
|
|
|
}
|
|
140
|
|
|
}
|
|
141
|
|
|
|
|
142
|
|
|
/**
|
|
143
|
|
|
* @return string
|
|
144
|
|
|
*/
|
|
145
|
|
|
private function getNextShortpath () : string
|
|
146
|
|
|
{
|
|
147
|
|
|
$tbl = (new Link)->getTable();
|
|
148
|
|
|
// Get latest short_path(s)
|
|
149
|
|
|
// As multiple instances could be created at the same timestamp which we get
|
|
150
|
|
|
// the latest one based on that
|
|
151
|
|
|
// so we must find the latest one(short_path) in the permutation of the main_str
|
|
152
|
|
|
$latest = collect(\DB::select("SELECT short_path FROM $tbl WHERE created_at = (SELECT MAX(created_at) FROM $tbl)"));
|
|
153
|
|
|
|
|
154
|
|
|
if (!$latest->count())
|
|
155
|
|
|
return $this->getFirstUrl();
|
|
156
|
|
|
|
|
157
|
|
|
if ($latest->count() == 1) {
|
|
158
|
|
|
return $this->findNextPerm($latest->first()->short_path);
|
|
159
|
|
|
}
|
|
160
|
|
|
else {
|
|
161
|
|
|
foreach ($latest->reverse() as $key => $item) {
|
|
162
|
|
|
$next = $this->findNextPerm($item->short_path);
|
|
163
|
|
|
|
|
164
|
|
|
// If next permutation of current item is in fetched items
|
|
165
|
|
|
// find next permutation of the next fetched one
|
|
166
|
|
|
if (!$latest->contains("short_path", $next))
|
|
167
|
|
|
return $next;
|
|
168
|
|
|
}
|
|
|
|
|
|
|
169
|
|
|
}
|
|
170
|
|
|
}
|
|
171
|
|
|
} |
akoSalman /
Shorturl
ako
Ako Salman
Loading history...
Checks if undeclared accessed properties appear in database migrations and if the creating migration is correct.