wp-database-backup / includes / admin / Destination / Google / google-api-php-client / src / external / URITemplateParser.php

URITemplateParser.php in WP Database Backup – Unlimited Database & Files Backup by Backup for WP 7.13, at includes/admin/Destination/Google/google-api-php-client/src/external/URITemplateParser.php

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1	<?php
2	// phpcs:ignoreFile -- third party library
3	/*
4	Copyright (c) 2010 Kevin M Burns Jr, http://kevburnsjr.com/
5
6	Permission is hereby granted, free of charge, to any person obtaining
7	a copy of this software and associated documentation files (the
8	"Software"), to deal in the Software without restriction, including
9	without limitation the rights to use, copy, modify, merge, publish,
10	distribute, sublicense, and/or sell copies of the Software, and to
11	permit persons to whom the Software is furnished to do so, subject to
12	the following conditions:
13
14	The above copyright notice and this permission notice shall be
15	included in all copies or substantial portions of the Software.
16
17	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
21	LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22	OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23	WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24	*/
25
26	/**
27	* A URI Template Parser which is used by the apiREST class to resolve the REST requests
28	* Blogpost: http://lab.kevburnsjr.com/php-uri-template-parser
29	* Source: http://github.com/KevBurnsJr/php-uri-template-parser
30	*/
31	class URI_Template_Parser {
32
33	public static $operators = array('+', ';', '?', '/', '.');
34	public static $reserved_operators = array('\|', '!', '@');
35	public static $explode_modifiers = array('+', '*');
36	public static $partial_modifiers = array(':', '^');
37
38	public static $gen_delims = array(':', '/', '?', '#', '[', ']', '@');
39	public static $gen_delims_pct = array('%3A', '%2F', '%3F', '%23', '%5B', '%5D', '%40');
40	public static $sub_delims = array('!', '$', '&', '\'', '(', ')', '*', '+', ',', ';', '=');
41	public static $sub_delims_pct = array('%21', '%24', '%26', '%27', '%28', '%29', '%2A', '%2B', '%2C', '%3B', '%3D');
42	public static $reserved;
43	public static $reserved_pct;
44
45	public function __construct($template) {
46	self::$reserved = array_merge(self::$gen_delims, self::$sub_delims);
47	self::$reserved_pct = array_merge(self::$gen_delims_pct, self::$sub_delims_pct);
48	$this->template = $template;
49	}
50
51	public function expand($data) {
52	// Modification to make this a bit more performant (since gettype is very slow)
53	if (! is_array($data)) {
54	$data = (array)$data;
55	}
56	/*
57	// Original code, which uses a slow gettype() statement, kept in place for if the assumption that is_array always works here is incorrect
58	switch (gettype($data)) {
59	case "boolean":
60	case "integer":
61	case "double":
62	case "string":
63	case "object":
64	$data = (array)$data;
65	break;
66	}
67	*/
68
69	// Resolve template vars
70	preg_match_all('/\{([^\}]*)\}/', $this->template, $em);
71
72	foreach ($em[1] as $i => $bare_expression) {
73	preg_match('/^([\+\;\?\/\.]{1})?(.*)$/', $bare_expression, $lm);
74	$exp = new StdClass();
75	$exp->expression = $em[0][$i];
76	$exp->operator = $lm[1];
77	$exp->variable_list = $lm[2];
78	$exp->varspecs = explode(',', $exp->variable_list);
79	$exp->vars = array();
80	foreach ($exp->varspecs as $varspec) {
81	preg_match('/^([a-zA-Z0-9_]+)([\*\+]{1})?([\:\^][0-9-]+)?(\=[^,]+)?$/', $varspec, $vm);
82	$var = new StdClass();
83	$var->name = $vm[1];
84	$var->modifier = isset($vm[2]) && $vm[2] ? $vm[2] : null;
85	$var->modifier = isset($vm[3]) && $vm[3] ? $vm[3] : $var->modifier;
86	$var->default = isset($vm[4]) ? substr($vm[4], 1) : null;
87	$exp->vars[] = $var;
88	}
89
90	// Add processing flags
91	$exp->reserved = false;
92	$exp->prefix = '';
93	$exp->delimiter = ',';
94	switch ($exp->operator) {
95	case '+':
96	$exp->reserved = 'true';
97	break;
98	case ';':
99	$exp->prefix = ';';
100	$exp->delimiter = ';';
101	break;
102	case '?':
103	$exp->prefix = '?';
104	$exp->delimiter = '&';
105	break;
106	case '/':
107	$exp->prefix = '/';
108	$exp->delimiter = '/';
109	break;
110	case '.':
111	$exp->prefix = '.';
112	$exp->delimiter = '.';
113	break;
114	}
115	$expressions[] = $exp;
116	}
117
118	// Expansion
119	$this->expansion = $this->template;
120
121	foreach ($expressions as $exp) {
122	$part = $exp->prefix;
123	$exp->one_var_defined = false;
124	foreach ($exp->vars as $var) {
125	$val = '';
126	if ($exp->one_var_defined && isset($data[$var->name])) {
127	$part .= $exp->delimiter;
128	}
129	// Variable present
130	if (isset($data[$var->name])) {
131	$exp->one_var_defined = true;
132	$var->data = $data[$var->name];
133
134	$val = self::val_from_var($var, $exp);
135
136	// Variable missing
137	} else {
138	if ($var->default) {
139	$exp->one_var_defined = true;
140	$val = $var->default;
141	}
142	}
143	$part .= $val;
144	}
145	if (! $exp->one_var_defined) $part = '';
146	$this->expansion = str_replace($exp->expression, $part, $this->expansion);
147	}
148
149	return $this->expansion;
150	}
151
152	private function val_from_var($var, $exp) {
153	$val = '';
154	if (is_array($var->data)) {
155	$i = 0;
156	if ($exp->operator == '?' && ! $var->modifier) {
157	$val .= $var->name . '=';
158	}
159	foreach ($var->data as $k => $v) {
160	$del = $var->modifier ? $exp->delimiter : ',';
161	$ek = rawurlencode($k);
162	$ev = rawurlencode($v);
163
164	// Array
165	if ($k !== $i) {
166	if ($var->modifier == '+') {
167	$val .= $var->name . '.';
168	}
169	if ($exp->operator == '?' && $var->modifier \|\| $exp->operator == ';' && $var->modifier == '*' \|\| $exp->operator == ';' && $var->modifier == '+') {
170	$val .= $ek . '=';
171	} else {
172	$val .= $ek . $del;
173	}
174
175	// List
176	} else {
177	if ($var->modifier == '+') {
178	if ($exp->operator == ';' && $var->modifier == '*' \|\| $exp->operator == ';' && $var->modifier == '+' \|\| $exp->operator == '?' && $var->modifier == '+') {
179	$val .= $var->name . '=';
180	} else {
181	$val .= $var->name . '.';
182	}
183	}
184	}
185	$val .= $ev . $del;
186	$i ++;
187	}
188	$val = trim($val, $del);
189
190	// Strings, numbers, etc.
191	} else {
192	if ($exp->operator == '?') {
193	$val = $var->name . (isset($var->data) ? '=' : '');
194	} else if ($exp->operator == ';') {
195	$val = $var->name . ($var->data ? '=' : '');
196	}
197	$val .= rawurlencode($var->data);
198	if ($exp->operator == '+') {
199	$val = str_replace(self::$reserved_pct, self::$reserved, $val);
200	}
201	}
202	return $val;
203	}
204
205	public function match($uri) {}
206
207	public function __toString() {
208	return $this->template;
209	}
210	}
211