1
|
|
|
<?php |
2
|
|
|
namespace Aws; |
3
|
|
|
|
4
|
|
|
use Psr\Http\Message\RequestInterface; |
5
|
|
|
use GuzzleHttp\ClientInterface; |
6
|
|
|
use GuzzleHttp\Promise\FulfilledPromise; |
7
|
|
|
|
8
|
|
|
//----------------------------------------------------------------------------- |
9
|
|
|
// Functional functions |
10
|
|
|
//----------------------------------------------------------------------------- |
11
|
|
|
|
12
|
|
|
/** |
13
|
|
|
* Returns a function that always returns the same value; |
14
|
|
|
* |
15
|
|
|
* @param mixed $value Value to return. |
16
|
|
|
* |
17
|
|
|
* @return callable |
18
|
|
|
*/ |
19
|
|
|
function constantly($value) |
20
|
|
|
{ |
21
|
|
|
return function () use ($value) { return $value; }; |
22
|
|
|
} |
23
|
|
|
|
24
|
|
|
/** |
25
|
|
|
* Filters values that do not satisfy the predicate function $pred. |
26
|
|
|
* |
27
|
|
|
* @param mixed $iterable Iterable sequence of data. |
28
|
|
|
* @param callable $pred Function that accepts a value and returns true/false |
29
|
|
|
* |
30
|
|
|
* @return \Generator |
31
|
|
|
*/ |
32
|
|
|
function filter($iterable, callable $pred) |
33
|
|
|
{ |
34
|
|
|
foreach ($iterable as $value) { |
35
|
|
|
if ($pred($value)) { |
36
|
|
|
yield $value; |
37
|
|
|
} |
38
|
|
|
} |
39
|
|
|
} |
40
|
|
|
|
41
|
|
|
/** |
42
|
|
|
* Applies a map function $f to each value in a collection. |
43
|
|
|
* |
44
|
|
|
* @param mixed $iterable Iterable sequence of data. |
45
|
|
|
* @param callable $f Map function to apply. |
46
|
|
|
* |
47
|
|
|
* @return \Generator |
48
|
|
|
*/ |
49
|
|
|
function map($iterable, callable $f) |
50
|
|
|
{ |
51
|
|
|
foreach ($iterable as $value) { |
52
|
|
|
yield $f($value); |
53
|
|
|
} |
54
|
|
|
} |
55
|
|
|
|
56
|
|
|
/** |
57
|
|
|
* Creates a generator that iterates over a sequence, then iterates over each |
58
|
|
|
* value in the sequence and yields the application of the map function to each |
59
|
|
|
* value. |
60
|
|
|
* |
61
|
|
|
* @param mixed $iterable Iterable sequence of data. |
62
|
|
|
* @param callable $f Map function to apply. |
63
|
|
|
* |
64
|
|
|
* @return \Generator |
65
|
|
|
*/ |
66
|
|
|
function flatmap($iterable, callable $f) |
67
|
|
|
{ |
68
|
|
|
foreach (map($iterable, $f) as $outer) { |
69
|
|
|
foreach ($outer as $inner) { |
70
|
|
|
yield $inner; |
71
|
|
|
} |
72
|
|
|
} |
73
|
|
|
} |
74
|
|
|
|
75
|
|
|
/** |
76
|
|
|
* Partitions the input sequence into partitions of the specified size. |
77
|
|
|
* |
78
|
|
|
* @param mixed $iterable Iterable sequence of data. |
79
|
|
|
* @param int $size Size to make each partition (except possibly the last chunk) |
80
|
|
|
* |
81
|
|
|
* @return \Generator |
82
|
|
|
*/ |
83
|
|
|
function partition($iterable, $size) |
84
|
|
|
{ |
85
|
|
|
$buffer = []; |
86
|
|
|
foreach ($iterable as $value) { |
87
|
|
|
$buffer[] = $value; |
88
|
|
|
if (count($buffer) === $size) { |
89
|
|
|
yield $buffer; |
90
|
|
|
$buffer = []; |
91
|
|
|
} |
92
|
|
|
} |
93
|
|
|
|
94
|
|
|
if ($buffer) { |
95
|
|
|
yield $buffer; |
96
|
|
|
} |
97
|
|
|
} |
98
|
|
|
|
99
|
|
|
/** |
100
|
|
|
* Returns a function that invokes the provided variadic functions one |
101
|
|
|
* after the other until one of the functions returns a non-null value. |
102
|
|
|
* The return function will call each passed function with any arguments it |
103
|
|
|
* is provided. |
104
|
|
|
* |
105
|
|
|
* $a = function ($x, $y) { return null; }; |
106
|
|
|
* $b = function ($x, $y) { return $x + $y; }; |
107
|
|
|
* $fn = \Aws\or_chain($a, $b); |
108
|
|
|
* echo $fn(1, 2); // 3 |
109
|
|
|
* |
110
|
|
|
* @return callable |
111
|
|
|
*/ |
112
|
|
|
function or_chain() |
113
|
|
|
{ |
114
|
|
|
$fns = func_get_args(); |
115
|
|
|
return function () use ($fns) { |
116
|
|
|
$args = func_get_args(); |
117
|
|
|
foreach ($fns as $fn) { |
118
|
|
|
$result = $args ? call_user_func_array($fn, $args) : $fn(); |
119
|
|
|
if ($result) { |
120
|
|
|
return $result; |
121
|
|
|
} |
122
|
|
|
} |
123
|
|
|
return null; |
124
|
|
|
}; |
125
|
|
|
} |
126
|
|
|
|
127
|
|
|
//----------------------------------------------------------------------------- |
128
|
|
|
// JSON compiler and loading functions |
129
|
|
|
//----------------------------------------------------------------------------- |
130
|
|
|
|
131
|
|
|
/** |
132
|
|
|
* Loads a compiled JSON file from a PHP file. |
133
|
|
|
* |
134
|
|
|
* If the JSON file has not been cached to disk as a PHP file, it will be loaded |
135
|
|
|
* from the JSON source file and returned. |
136
|
|
|
* |
137
|
|
|
* @param string $path Path to the JSON file on disk |
138
|
|
|
* |
139
|
|
|
* @return mixed Returns the JSON decoded data. Note that JSON objects are |
140
|
|
|
* decoded as associative arrays. |
141
|
|
|
*/ |
142
|
|
|
function load_compiled_json($path) |
143
|
|
|
{ |
144
|
|
|
if ($compiled = @include("$path.php")) { |
145
|
|
|
return $compiled; |
146
|
|
|
} |
147
|
|
|
|
148
|
|
|
if (!file_exists($path)) { |
149
|
|
|
throw new \InvalidArgumentException( |
150
|
|
|
sprintf("File not found: %s", $path) |
151
|
|
|
); |
152
|
|
|
} |
153
|
|
|
|
154
|
|
|
return json_decode(file_get_contents($path), true); |
155
|
|
|
} |
156
|
|
|
|
157
|
|
|
/** |
158
|
|
|
* No-op |
159
|
|
|
*/ |
160
|
|
|
function clear_compiled_json() |
161
|
|
|
{ |
162
|
|
|
// pass |
163
|
|
|
} |
164
|
|
|
|
165
|
|
|
//----------------------------------------------------------------------------- |
166
|
|
|
// Directory iterator functions. |
167
|
|
|
//----------------------------------------------------------------------------- |
168
|
|
|
|
169
|
|
|
/** |
170
|
|
|
* Iterates over the files in a directory and works with custom wrappers. |
171
|
|
|
* |
172
|
|
|
* @param string $path Path to open (e.g., "s3://foo/bar"). |
173
|
|
|
* @param resource $context Stream wrapper context. |
174
|
|
|
* |
175
|
|
|
* @return \Generator Yields relative filename strings. |
176
|
|
|
*/ |
177
|
|
|
function dir_iterator($path, $context = null) |
178
|
|
|
{ |
179
|
|
|
$dh = $context ? opendir($path, $context) : opendir($path); |
|
|
|
|
180
|
|
|
if (!$dh) { |
|
|
|
|
181
|
|
|
throw new \InvalidArgumentException('File not found: ' . $path); |
182
|
|
|
} |
183
|
|
|
while (($file = readdir($dh)) !== false) { |
184
|
|
|
yield $file; |
185
|
|
|
} |
186
|
|
|
closedir($dh); |
187
|
|
|
} |
188
|
|
|
|
189
|
|
|
/** |
190
|
|
|
* Returns a recursive directory iterator that yields absolute filenames. |
191
|
|
|
* |
192
|
|
|
* This iterator is not broken like PHP's built-in DirectoryIterator (which |
193
|
|
|
* will read the first file from a stream wrapper, then rewind, then read |
194
|
|
|
* it again). |
195
|
|
|
* |
196
|
|
|
* @param string $path Path to traverse (e.g., s3://bucket/key, /tmp) |
197
|
|
|
* @param resource $context Stream context options. |
198
|
|
|
* |
199
|
|
|
* @return \Generator Yields absolute filenames. |
200
|
|
|
*/ |
201
|
|
|
function recursive_dir_iterator($path, $context = null) |
202
|
|
|
{ |
203
|
|
|
$invalid = ['.' => true, '..' => true]; |
204
|
|
|
$pathLen = strlen($path) + 1; |
205
|
|
|
$iterator = dir_iterator($path, $context); |
206
|
|
|
$queue = []; |
207
|
|
|
do { |
208
|
|
|
while ($iterator->valid()) { |
209
|
|
|
$file = $iterator->current(); |
210
|
|
|
$iterator->next(); |
211
|
|
|
if (isset($invalid[basename($file)])) { |
212
|
|
|
continue; |
213
|
|
|
} |
214
|
|
|
$fullPath = "{$path}/{$file}"; |
215
|
|
|
yield $fullPath; |
216
|
|
|
if (is_dir($fullPath)) { |
217
|
|
|
$queue[] = $iterator; |
218
|
|
|
$iterator = map( |
219
|
|
|
dir_iterator($fullPath, $context), |
220
|
|
|
function ($file) use ($fullPath, $pathLen) { |
221
|
|
|
return substr("{$fullPath}/{$file}", $pathLen); |
222
|
|
|
} |
223
|
|
|
); |
224
|
|
|
continue; |
225
|
|
|
} |
226
|
|
|
} |
227
|
|
|
$iterator = array_pop($queue); |
228
|
|
|
} while ($iterator); |
229
|
|
|
} |
230
|
|
|
|
231
|
|
|
//----------------------------------------------------------------------------- |
232
|
|
|
// Misc. functions. |
233
|
|
|
//----------------------------------------------------------------------------- |
234
|
|
|
|
235
|
|
|
/** |
236
|
|
|
* Debug function used to describe the provided value type and class. |
237
|
|
|
* |
238
|
|
|
* @param mixed $input |
239
|
|
|
* |
240
|
|
|
* @return string Returns a string containing the type of the variable and |
241
|
|
|
* if a class is provided, the class name. |
242
|
|
|
*/ |
243
|
|
|
function describe_type($input) |
244
|
|
|
{ |
245
|
|
|
switch (gettype($input)) { |
246
|
|
|
case 'object': |
247
|
|
|
return 'object(' . get_class($input) . ')'; |
248
|
|
|
case 'array': |
249
|
|
|
return 'array(' . count($input) . ')'; |
250
|
|
|
default: |
251
|
|
|
ob_start(); |
252
|
|
|
var_dump($input); |
|
|
|
|
253
|
|
|
// normalize float vs double |
254
|
|
|
return str_replace('double(', 'float(', rtrim(ob_get_clean())); |
255
|
|
|
} |
256
|
|
|
} |
257
|
|
|
|
258
|
|
|
/** |
259
|
|
|
* Creates a default HTTP handler based on the available clients. |
260
|
|
|
* |
261
|
|
|
* @return callable |
262
|
|
|
*/ |
263
|
|
|
function default_http_handler() |
264
|
|
|
{ |
265
|
|
|
$version = (string) ClientInterface::VERSION; |
|
|
|
|
266
|
|
|
if ($version[0] === '5') { |
267
|
|
|
return new \Aws\Handler\GuzzleV5\GuzzleHandler(); |
268
|
|
|
} elseif ($version[0] === '6') { |
269
|
|
|
return new \Aws\Handler\GuzzleV6\GuzzleHandler(); |
270
|
|
|
} else { |
271
|
|
|
throw new \RuntimeException('Unknown Guzzle version: ' . $version); |
272
|
|
|
} |
273
|
|
|
} |
274
|
|
|
|
275
|
|
|
/** |
276
|
|
|
* Serialize a request for a command but do not send it. |
277
|
|
|
* |
278
|
|
|
* Returns a promise that is fulfilled with the serialized request. |
279
|
|
|
* |
280
|
|
|
* @param CommandInterface $command Command to serialize. |
281
|
|
|
* |
282
|
|
|
* @return RequestInterface |
283
|
|
|
* @throws \RuntimeException |
284
|
|
|
*/ |
285
|
|
|
function serialize(CommandInterface $command) |
286
|
|
|
{ |
287
|
|
|
$request = null; |
288
|
|
|
$handlerList = $command->getHandlerList(); |
289
|
|
|
|
290
|
|
|
// Return a mock result. |
291
|
|
|
$handlerList->setHandler( |
292
|
|
|
function (CommandInterface $_, RequestInterface $r) use (&$request) { |
293
|
|
|
$request = $r; |
294
|
|
|
return new FulfilledPromise(new Result([])); |
295
|
|
|
} |
296
|
|
|
); |
297
|
|
|
|
298
|
|
|
call_user_func($handlerList->resolve(), $command)->wait(); |
299
|
|
|
if (!$request instanceof RequestInterface) { |
300
|
|
|
throw new \RuntimeException( |
301
|
|
|
'Calling handler did not serialize request' |
302
|
|
|
); |
303
|
|
|
} |
304
|
|
|
|
305
|
|
|
return $request; |
306
|
|
|
} |
307
|
|
|
|
308
|
|
|
/** |
309
|
|
|
* Retrieves data for a service from the SDK's service manifest file. |
310
|
|
|
* |
311
|
|
|
* Manifest data is stored statically, so it does not need to be loaded more |
312
|
|
|
* than once per process. The JSON data is also cached in opcache. |
313
|
|
|
* |
314
|
|
|
* @param string $service Case-insensitive namespace or endpoint prefix of the |
315
|
|
|
* service for which you are retrieving manifest data. |
316
|
|
|
* |
317
|
|
|
* @return array |
318
|
|
|
* @throws \InvalidArgumentException if the service is not supported. |
319
|
|
|
*/ |
320
|
|
|
function manifest($service = null) |
321
|
|
|
{ |
322
|
|
|
// Load the manifest and create aliases for lowercased namespaces |
323
|
|
|
static $manifest = []; |
324
|
|
|
static $aliases = []; |
325
|
|
|
if (empty($manifest)) { |
326
|
|
|
$manifest = load_compiled_json(__DIR__ . '/data/manifest.json'); |
327
|
|
|
foreach ($manifest as $endpoint => $info) { |
328
|
|
|
$alias = strtolower($info['namespace']); |
329
|
|
|
if ($alias !== $endpoint) { |
330
|
|
|
$aliases[$alias] = $endpoint; |
331
|
|
|
} |
332
|
|
|
} |
333
|
|
|
} |
334
|
|
|
|
335
|
|
|
// If no service specified, then return the whole manifest. |
336
|
|
|
if ($service === null) { |
337
|
|
|
return $manifest; |
338
|
|
|
} |
339
|
|
|
|
340
|
|
|
// Look up the service's info in the manifest data. |
341
|
|
|
$service = strtolower($service); |
342
|
|
|
if (isset($manifest[$service])) { |
343
|
|
|
return $manifest[$service] + ['endpoint' => $service]; |
344
|
|
|
} elseif (isset($aliases[$service])) { |
345
|
|
|
return manifest($aliases[$service]); |
346
|
|
|
} else { |
347
|
|
|
throw new \InvalidArgumentException( |
348
|
|
|
"The service \"{$service}\" is not provided by the AWS SDK for PHP." |
349
|
|
|
); |
350
|
|
|
} |
351
|
|
|
} |
352
|
|
|
|