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Failed Conditions
Push — master ( 888a68...c84b74 )
by Charlotte
05:53
created

src/Commands/StatementExecuteCommand.php (1 issue)

1
<?php
2
/**
3
 * Plasma Driver MySQL component
4
 * Copyright 2018 PlasmaPHP, All Rights Reserved
5
 *
6
 * Website: https://github.com/PlasmaPHP
7
 * License: https://github.com/PlasmaPHP/driver-mysql/blob/master/LICENSE
8
*/
9
10
namespace Plasma\Drivers\MySQL\Commands;
11
12
/**
13
 * Statement Execute command.
14
 * @internal
15
 */
16
class StatementExecuteCommand extends QueryCommand {
17
    /**
18
     * The identifier for this command.
19
     * @var int
20
     * @source
21
     */
22
    const COMMAND_ID = 0x17;
23
    
24
    /**
25
     * @var mixed
26
     */
27
    protected $id;
28
    
29
    /**
30
     * @var array
31
     */
32
    protected $params;
33
    
34
    /**
35
     * Constructor.
36
     * @param \Plasma\DriverInterface  $driver
37
     * @param mixed                    $id
38
     * @param string                   $query
39
     * @param array                    $params
40
     */
41
    function __construct(\Plasma\DriverInterface $driver, $id, string $query, array $params) {
42
        parent::__construct($driver, $query);
43
        
44
        $this->id = $id;
45
        $this->params = $params;
46
    }
47
    
48
    /**
49
     * Get the encoded message for writing to the database connection.
50
     * @return string
51
     */
52
    function getEncodedMessage(): string {
53
        $packet = \chr(static::COMMAND_ID);
54
        $packet .= \Plasma\BinaryBuffer::writeInt4($this->id);
55
        
56
        $packet .= "\x00"; // Cursor type flag
57
        $packet .= \Plasma\BinaryBuffer::writeInt4(1); // Iteration count is always 1
58
        
59
        $bitmapOffset = \strlen($packet);
60
        $packet .= \str_repeat("\x00", ((\count($this->params) + 7) >> 3));
61
        
62
        $bound = 0;
63
        
64
        $types = '';
65
        $values = '';
66
        
67
        foreach($this->params as $id => $param) {
68
            if($param === null) {
69
                $offset = $bitmapOffset + ($id >> 3);
70
                $packet[$offset] = $packet[$offset] | \chr((1 << ($id % 8)));
71
            } else {
72
                $bound = 1;
73
            }
74
            
75
            try {
76
                $manager = \Plasma\Types\TypeExtensionsManager::getManager('driver-mysql');
77
                $encode = $manager->encodeType($param);
78
                
79
                $unsigned = $encode->isUnsigned();
80
                $type = $encode->getSQLType();
81
                $value = $encode->getValue();
82
            } catch (\Plasma\Exception $e) {
83
                [ $unsigned, $type, $value ] = $this->stdEncodeValue($param);
84
            }
85
            
86
            $types .= \chr($type).($unsigned ? "\x80" : "\x00");
87
            $values .= $value;
88
            var_dump($param, unpack('C*', $value));
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89
        }
90
        
91
        $packet .= \chr($bound);
92
        
93
        if($bound) {
94
            $packet .= $types;
95
            $packet .= $values;
96
        }
97
        
98
        return $packet;
99
    }
100
    
101
    /**
102
     * Whether the sequence ID should be resetted.
103
     * @return bool
104
     */
105
    function resetSequence(): bool {
106
        return true;
107
    }
108
    
109
    /**
110
     * Parses the binary resultset row and returns the row.
111
     * @param \Plasma\ColumnDefinitionInterface  $column
112
     * @param \Plasma\BinaryBuffer               $buffer
113
     * @return array
114
     */
115
    protected function parseResultsetRow(\Plasma\BinaryBuffer $buffer): array {
116
        $nullRow = array();
117
        $i = 0;
118
        
119
        /** @var \Plasma\ColumnDefinitionInterface  $column */
120
        foreach($this->fields as $column) { // Handle NULL-bitmap
121
            if((\ord($buffer[(($i + 2) >> 3)]) & (1 << (($i + 2) % 8))) !== 0) {
122
                $nullRow[$column->getName()] = null;
123
            }
124
            
125
            $i++;
126
        }
127
        
128
        $buffer->read(((\count($this->fields) + 9) >> 3)); // Remove NULL-bitmap
129
        $row = array();
130
        
131
        /** @var \Plasma\ColumnDefinitionInterface  $column */
132
        foreach($this->fields as $column) {
133
            if(\array_key_exists($column->getName(), $nullRow)) {
134
                $row[$column->getName()] = $nullRow[$column->getName()];
135
                continue;
136
            }
137
            
138
            $value = $this->stdDecodeBinaryValue($column, $buffer);
139
            $parsedValue = $column->parseValue($value);
140
            
141
            if($value !== $parsedValue) {
142
                $value = $parsedValue;
143
            }
144
            
145
            $row[$column->getName()] = $value;
146
        }
147
        
148
        return $row;
149
    }
150
    
151
    /**
152
     * Standard encode value, if type extensions failed.
153
     * @param mixed  $param
154
     * @return array
155
     * @throws \Plasma\Exception
156
     */
157
    protected function stdEncodeValue($param): array {
158
        $unsigned = false;
159
        
160
        switch(\gettype($param)) {
161
            case 'boolean':
162
                $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_TINY;
163
                $value = ($param ? "\x01" : "\0");
164
            break;
165
            case 'integer':
166
                if($param >= 0) {
167
                    $unsigned = true;
168
                }
169
                
170
                if($param >= 0 && $param < (1 << 15)) {
171
                    $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_SHORT;
172
                    $value = \Plasma\BinaryBuffer::writeInt2($param);
173
                } elseif(\PHP_INT_SIZE === 4) {
174
                    $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_LONG;
175
                    $value = \Plasma\BinaryBuffer::writeInt4($param);
176
                } else {
177
                    $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_LONGLONG;
178
                    $value = \Plasma\BinaryBuffer::writeInt8($param);
179
                }
180
            break;
181
            case 'double':
182
                $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_DOUBLE;
183
                $value = \Plasma\BinaryBuffer::writeDouble($param);
184
            break;
185
            case 'string':
186
                $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_LONG_BLOB;
187
                $value = \Plasma\BinaryBuffer::writeStringLength($param);
188
            break;
189
            case 'NULL':
190
                $type = \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_NULL;
191
                $value = '';
192
            break;
193
            default:
194
                throw new \Plasma\Exception('Unexpected type for binding parameter: '.\gettype($param));
195
            break;
196
        }
197
        
198
        return array($unsigned, $type, $value);
199
    }
200
    
201
    /**
202
     * Standard decode value, if type extensions failed.
203
     * @param \Plasma\ColumnDefinitionInterface  $column
204
     * @param \Plasma\BinaryBuffer               $buffer
205
     * @return mixed
206
     * @throws \Plasma\Exception
207
     */
208
    protected function stdDecodeBinaryValue(\Plasma\ColumnDefinitionInterface $column, \Plasma\BinaryBuffer $buffer) {
209
        $flags = $column->getFlags();
210
        
211
        switch(true) {
212
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_TINY) !== 0):
213
                $value = $buffer->readInt1();
214
                $value = $this->zeroFillInts($column, $value);
215
            break;
216
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_SHORT) !== 0):
217
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_YEAR) !== 0):
218
                $value = $buffer->readInt2();
219
                $value = $this->zeroFillInts($column, $value);
220
            break;
221
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_INT24) !== 0):
222
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_LONG) !== 0):
223
                $value = $buffer->readInt4();
224
            
225
                if(($flags & \Plasma\Drivers\MySQL\FieldFlags::UNSIGNED_FLAG) !== 0 && \PHP_INT_SIZE <= 4) {
226
                    $value = \bcadd($value, '18446744073709551616');
227
                }
228
                
229
                $value = $this->zeroFillInts($column, $value);
230
            break;
231
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_LONGLONG) !== 0):
232
                $value = $buffer->readInt8();
233
                
234
                if(($flags & \Plasma\Drivers\MySQL\FieldFlags::UNSIGNED_FLAG) !== 0) {
235
                    $value = \bcadd($value, '18446744073709551616');
236
                } elseif(\PHP_INT_SIZE > 4) {
237
                    $value = (int) $value;
238
                }
239
                
240
                $value = $this->zeroFillInts($column, $value);
241
            break;
242
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_FLOAT) !== 0):
243
                $value = $buffer->readFloat();
244
            break;
245
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_DOUBLE) !== 0):
246
                $value = $buffer->readDouble();
247
            break;
248
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_DATE) !== 0):
249
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_NEWDATE) !== 0):
250
                $length = $buffer->readIntLength();
251
                if($length > 0) {
252
                    $year = $buffer->readInt2();
253
                    $month = $buffer->readInt1();
254
                    $day = $buffer->readInt1();
255
                    
256
                    $value = \sprintf('%d-%d-%d', $year, $month, $day);
257
                } else {
258
                    $value = '0000-00-00';
259
                }
260
            break;
261
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_DATETIME) !== 0):
262
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_TIMESTAMP) !== 0):
263
                $length = $buffer->readIntLength();
264
                if($length > 0) {
265
                    $year = $buffer->readInt2();
266
                    $month = $buffer->readInt1();
267
                    $day = $buffer->readInt1();
268
                    
269
                    if($length > 4) {
270
                        $hour = $buffer->readInt1();
271
                        $min = $buffer->readInt1();
272
                        $sec = $buffer->readInt1();
273
                    } else {
274
                        $hour = 0;
275
                        $min = 0;
276
                        $sec = 0;
277
                    }
278
                    
279
                    if($length > 7) {
280
                        $micro = $buffer->readInt4();
281
                    } else {
282
                        $micro = 0;
283
                    }
284
                    
285
                    $timestamp = (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_TIMESTAMP) !== 0);
286
                    
287
                    $micro = \str_pad($micro, 6, '0', \STR_PAD_LEFT);
288
                    $micro = ($timestamp ? $micro : \number_format($micro, 0, '', ' '));
289
                    
290
                    $value = \sprintf('%d-%d-%d %d:%d:%d'.($micro > 0 ? '.%s' : ''), $year, $month, $day, $hour, $min, $sec, $micro);
291
                    
292
                    if($timestamp) {
293
                        $value = \DateTime::createFromFormat('Y-m-d H:i:s'.($micro > 0 ? '.u' : ''), $value)->getTimestamp();
294
                    }
295
                } else {
296
                    $value = '0000-00-00 00:00:00.000 000';
297
                }
298
            break;
299
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_TIME) !== 0):
300
                $length = $buffer->readIntLength();
301
                if($length > 0) {
302
                    $sign = $buffer->readInt1();
303
                    $days = $buffer->readInt4();
304
                    
305
                    if($sign === 1) {
306
                        $days *= -1;
307
                    }
308
                    
309
                    $hour = $buffer->readInt1();
310
                    $min = $buffer->readInt1();
311
                    $sec = $buffer->readInt1();
312
                    
313
                    if($length > 8) {
314
                        $micro = $buffer->readInt4();
315
                    } else {
316
                        $micro = 0;
317
                    }
318
                    
319
                    $micro = \str_pad($micro, 6, '0', \STR_PAD_LEFT);
320
                    $micro = \number_format($micro, 0, '', ' ');
321
                    
322
                    $value = \sprintf('%dd %d:%d:%d'.($micro > 0 ? '.%s' : ''), $days, $hour, $min, $sec, $micro);
323
                } else {
324
                    $value = '0d 00:00:00';
325
                }
326
            break;
327
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_NULL) !== 0):
328
                $value = null;
329
            break;
330
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_STRING) !== 0):
331
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_VARCHAR) !== 0):
332
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_VAR_STRING) !== 0):
333
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_ENUM) !== 0):
334
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_SET) !== 0):
335
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_LONG_BLOB) !== 0):
336
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_MEDIUM_BLOB) !== 0):
337
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_BLOB) !== 0):
338
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_TINY_BLOB) !== 0):
339
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_GEOMETRY) !== 0):
340
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_BIT) !== 0):
341
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_DECIMAL) !== 0):
342
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_NEWDECIMAL) !== 0):
343
            case (($flags & \Plasma\Drivers\MySQL\FieldFlags::FIELD_TYPE_JSON) !== 0):
344
            case ($column->getType() === 'VARSTRING'): // WTF is going on ?! flags = 0, type = VARSTRING
345
                $value = $buffer->readStringLength();
346
            break;
347
            default:
348
                throw new \InvalidArgumentException('Unknown column type (flags: '.$flags.', type: '.$column->getType().')');
349
            break;
350
        }
351
        
352
        return $value;
353
    }
354
    
355
    /**
356
     * @param \Plasma\ColumnDefinitionInterface  $column
357
     * @param string|int                         $value
358
     * @return string|int
359
     */
360
    protected function zeroFillInts(\Plasma\ColumnDefinitionInterface $column, $value) {
361
        $flags = $column->getFlags();
362
        
363
        if(($flags & \Plasma\Drivers\MySQL\FieldFlags::ZEROFILL_FLAG) !== 0) {
364
            $value = \str_pad(((string) $value), $column->getLength(), '0', \STR_PAD_LEFT);
365
        }
366
        
367
        return $value;
368
    }
369
}
370