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 6.11, at includes/admin/Destination/Google/google-api-php-client/src/external/URITemplateParser.php

210 lines 7.0 KB

Raw Download Zip

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