DataimportController::render() - Code Metrics - HuasoFoundries/phpPgAdmin6 - Measure and Improve Code Quality continuously with Scrutinizer

DataimportController::render() F
last analyzed 2020-12-30 10:51 UTC

↳ Parent: DataimportController

Complexity

Conditions	42
Paths	122

Size

Total Lines	296
Code Lines	173

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	1	Features	0

Metric	Value
cc	42
eloc	173
c	3
b	1
f	0
nc	122
nop	0
dl	0
loc	296
rs	3.1866

How to fix Long Method Complexity

<?php

/**
 * PHPPgAdmin 6.1.3
 */

namespace PHPPgAdmin\Controller;

/**
 * Base controller class.
 */
class DataimportController extends BaseController
{
    public $controller_title = 'strimport';

    /**
     * Default method to render the controller according to the action parameter.
     */
    public function render()
    {
        $data = $this->misc->getDatabaseAccessor();

        // Prevent timeouts on large exports
        \set_time_limit(0);

        $this->printHeader();
        $this->printTrail('table');
        $this->printTabs('table', 'import');

        // Default state for XML parser
        $state = 'XML';
        $curr_col_name = null;
        $curr_col_val = null;
        $curr_col_null = false;
        $curr_row = [];

        /**
         * Character data handler for XML import feature.
         *
         * @param resource $parser
         * @param string   $cdata
         */
        $_charHandler = static function ($parser, $cdata) use (&$state, &$curr_col_val): void {
            if ('COLUMN' === $state) {
                $curr_col_val .= $cdata;
            }
        };

        $lang = $this->lang;
        /**
         * Open tag handler for XML import feature.
         *
         * @param resource $parser
         * @param string   $name
         * @param array    $attrs
         */
        $_startElement = function ($parser, $name, $attrs) use ($curr_row, $data, &$state, &$curr_col_name, &$curr_col_null, $lang): void {
            switch ($name) {
                case 'DATA':
                    if ('XML' !== $state) {
                        $data->rollbackTransaction();
                        $this->halt($lang['strimporterror']);
                    }
                    $state = 'DATA';

                    break;
                case 'HEADER':
                    if ('DATA' !== $state) {
                        $data->rollbackTransaction();
                        $this->halt($lang['strimporterror']);
                    }
                    $state = 'HEADER';

                    break;
                case 'RECORDS':
                    if ('READ_HEADER' !== $state) {
                        $data->rollbackTransaction();
                        $this->halt($lang['strimporterror']);
                    }
                    $state = 'RECORDS';

                    break;
                case 'ROW':
                    if ('RECORDS' !== $state) {
                        $data->rollbackTransaction();
                        $this->halt($lang['strimporterror']);
                    }
                    $state = 'ROW';
                    $curr_row = [];

                    break;
                case 'COLUMN':
                    // We handle columns in rows
                    if ('ROW' === $state) {
                        $state = 'COLUMN';
                        $curr_col_name = $attrs['NAME'];
                        $curr_col_null = isset($attrs['NULL']);
                    } elseif ('HEADER' !== $state) {
                        // And we ignore columns in headers and fail in any other context
                        $data->rollbackTransaction();
                        $this->halt($lang['strimporterror']);
                    }

                    break;

                default:
                    // An unrecognised tag means failure
                    $data->rollbackTransaction();
                    $this->halt($lang['strimporterror']);
            }
        };

        /**
         * Close tag handler for XML import feature.
         *
         * @param resource $parser
         * @param string   $name
         */
        $_endElement = function ($parser, $name) use ($curr_row, $data, &$state, &$curr_col_name, &$curr_col_null, &$curr_col_val, $lang): void {
            switch ($name) {
                case 'DATA':
                    $state = 'READ_DATA';

                    break;
                case 'HEADER':
                    $state = 'READ_HEADER';

                    break;
                case 'RECORDS':
                    $state = 'READ_RECORDS';

                    break;
                case 'ROW':
                    // Build value map in order to insert row into table
                    $fields = [];
                    $vars = [];
                    $nulls = [];
                    $format = [];
                    $types = [];
                    $i = 0;

                    foreach ($curr_row as $k => $v) {
                        $fields[$i] = $k;
                        // Check for nulls
                        if (null === $v) {
                            $nulls[$i] = 'on';
                        }

                        // Add to value array
                        $vars[$i] = $v;
                        // Format is always VALUE
                        $format[$i] = 'VALUE';
                        // Type is always text
                        $types[$i] = 'text';
                        ++$i;
                    }
                    $status = $data->insertRow($_REQUEST['table'], $fields, $vars, $nulls, $format, $types);

                    if (0 !== $status) {
                        $data->rollbackTransaction();
                        $this->halt($lang['strimporterror']);
                    }
                    $curr_row = [];
                    $state = 'RECORDS';

                    break;
                case 'COLUMN':
                    $curr_row[$curr_col_name] = ($curr_col_null ? null : $curr_col_val);
                    $curr_col_name = null;
                    $curr_col_val = null;
                    $curr_col_null = false;
                    $state = 'ROW';

                    break;

                default:
                    // An unrecognised tag means failure
                    $data->rollbackTransaction();
                    $this->halt($lang['strimporterror']);
            }
        };

        // Check that file is specified and is an uploaded file
        if (!isset($_FILES['source']) || !\is_uploaded_file($_FILES['source']['tmp_name']) || !\is_readable($_FILES['source']['tmp_name'])) {
            // Upload went wrong
            $this->printMsg($this->lang['strimporterror-uploadedfile']);

            return $this->printFooter();
        }
        $fd = \fopen($_FILES['source']['tmp_name'], 'rb');
        // Check that file was opened successfully
        if (false === $fd) {
            // File could not be opened
            $this->printMsg($this->lang['strimporterror']);

            return $this->printFooter();
        }
        $null_array = self::loadNULLArray();
        $status = $data->beginTransaction();

        if (0 !== $status) {
            $this->halt($this->lang['strimporterror']);
        }

        // If format is set to 'auto', then determine format automatically from file name
        if ('auto' === $_REQUEST['format']) {
            $extension = \mb_substr(\mb_strrchr($_FILES['source']['name'], '.'), 1);

            switch ($extension) {
                case 'csv':
                    $_REQUEST['format'] = 'csv';

                    break;
                case 'txt':
                    $_REQUEST['format'] = 'tab';

                    break;
                case 'xml':
                    $_REQUEST['format'] = 'xml';

                    break;

                default:
                    $data->rollbackTransaction();
                    $this->halt($this->lang['strimporterror-fileformat']);
            }
        }

        // Do different import technique depending on file format
        switch ($_REQUEST['format']) {
            case 'csv':
            case 'tab':
                // XXX: Length of CSV lines limited to 100k
                $csv_max_line = 100000;
                // Set delimiter to tabs or commas
                if ('csv' === $_REQUEST['format']) {
                    $csv_delimiter = ',';
                } else {
                    $csv_delimiter = "\t";
                }

                // Get first line of field names
                $fields = \fgetcsv($fd, $csv_max_line, $csv_delimiter);
                $row = 2; //We start on the line AFTER the field names

                while ($line = \fgetcsv($fd, $csv_max_line, $csv_delimiter)) {
                    // Build value map
                    $t_fields = [];
                    $vars = [];
                    $nulls = [];
                    $format = [];
                    $types = [];
                    $i = 0;

                    foreach ($fields as $f) {
                        // Check that there is a column
                        if (!isset($line[$i])) {
                            $this->halt(\sprintf($this->lang['strimporterrorline-badcolumnnum'], $row));
                        }
                        $t_fields[$i] = $f;

                        // Check for nulls
                        if (self::determineNull($line[$i], $null_array)) {
                            $nulls[$i] = 'on';
                        }
                        // Add to value array
                        $vars[$i] = $line[$i];
                        // Format is always VALUE
                        $format[$i] = 'VALUE';
                        // Type is always text
                        $types[$i] = 'text';
                        ++$i;
                    }

                    $status = $data->insertRow($_REQUEST['table'], $t_fields, $vars, $nulls, $format, $types);

                    if (0 !== $status) {
                        $data->rollbackTransaction();
                        $this->halt(\sprintf($this->lang['strimporterrorline'], $row));
                    }
                    ++$row;
                }

                break;
            case 'xml':
                $parser = \xml_parser_create();
                \xml_set_element_handler($parser, $_startElement, $_endElement);
                \xml_set_character_data_handler($parser, $_charHandler);

                while (!\feof($fd)) {
                    $line = \fgets($fd, 4096);
                    \xml_parse($parser, $line);
                }

                \xml_parser_free($parser);

                break;

            default:
                // Unknown type
                $data->rollbackTransaction();
                $this->halt($this->lang['strinvalidparam']);
        }

        $status = $data->endTransaction();

        if (0 !== $status) {
            $this->printMsg($this->lang['strimporterror']);
        }
        \fclose($fd);

        $this->printMsg($this->lang['strfileimported']);

        return $this->printFooter();
    }

    public static function loadNULLArray()
    {
        $array = [];

        if (isset($_POST['allowednulls'])) {
            foreach ($_POST['allowednulls'] as $null_char) {
                $array[] = $null_char;
            }
        }

        return $array;
    }

    /**
     * @param null|string $field
     * @param mixed       $null_array
     */
    public static function determineNull(?string $field, $null_array)
    {
        return \in_array($field, $null_array, true);
    }
}


1			<?php
2
3			/**
4			* PHPPgAdmin 6.1.3
5			*/
6
7			namespace PHPPgAdmin\Controller;
8
9			/**
10			* Base controller class.
11			*/
12			class DataimportController extends BaseController
13			{
14			public $controller_title = 'strimport';
15
16			/**
17			* Default method to render the controller according to the action parameter.
18			*/
19			public function render()
20			{
21			$data = $this->misc->getDatabaseAccessor();
22
23			// Prevent timeouts on large exports
24			\set_time_limit(0);
25
26			$this->printHeader();
27			$this->printTrail('table');
28			$this->printTabs('table', 'import');
29
30			// Default state for XML parser
31			$state = 'XML';
32			$curr_col_name = null;
33			$curr_col_val = null;
34			$curr_col_null = false;
35			$curr_row = [];
36
37			/**
38			* Character data handler for XML import feature.
39			*
40			* @param resource $parser
41			* @param string $cdata
42			*/
43			$_charHandler = static function ($parser, $cdata) use (&$state, &$curr_col_val): void {
44			if ('COLUMN' === $state) {
45			$curr_col_val .= $cdata;
46			}
47			};
48
49			$lang = $this->lang;
50			/**
51			* Open tag handler for XML import feature.
52			*
53			* @param resource $parser
54			* @param string $name
55			* @param array $attrs
56			*/
57			$_startElement = function ($parser, $name, $attrs) use ($curr_row, $data, &$state, &$curr_col_name, &$curr_col_null, $lang): void {
58			switch ($name) {
59			case 'DATA':
60			if ('XML' !== $state) {
61			$data->rollbackTransaction();
62			$this->halt($lang['strimporterror']);
63			}
64			$state = 'DATA';
65
66			break;
67			case 'HEADER':
68			if ('DATA' !== $state) {
69			$data->rollbackTransaction();
70			$this->halt($lang['strimporterror']);
71			}
72			$state = 'HEADER';
73
74			break;
75			case 'RECORDS':
76			if ('READ_HEADER' !== $state) {
77			$data->rollbackTransaction();
78			$this->halt($lang['strimporterror']);
79			}
80			$state = 'RECORDS';
81
82			break;
83			case 'ROW':
84			if ('RECORDS' !== $state) {
85			$data->rollbackTransaction();
86			$this->halt($lang['strimporterror']);
87			}
88			$state = 'ROW';
89			$curr_row = [];
90
91			break;
92			case 'COLUMN':
93			// We handle columns in rows
94			if ('ROW' === $state) {
95			$state = 'COLUMN';
96			$curr_col_name = $attrs['NAME'];
97			$curr_col_null = isset($attrs['NULL']);
98			} elseif ('HEADER' !== $state) {
99			// And we ignore columns in headers and fail in any other context
100			$data->rollbackTransaction();
101			$this->halt($lang['strimporterror']);
102			}
103
104			break;
105
106			default:
107			// An unrecognised tag means failure
108			$data->rollbackTransaction();
109			$this->halt($lang['strimporterror']);
110			}
111			};
112
113			/**
114			* Close tag handler for XML import feature.
115			*
116			* @param resource $parser
117			* @param string $name
118			*/
119			$_endElement = function ($parser, $name) use ($curr_row, $data, &$state, &$curr_col_name, &$curr_col_null, &$curr_col_val, $lang): void {
120			switch ($name) {
121			case 'DATA':
122			$state = 'READ_DATA';
123
124			break;
125			case 'HEADER':
126			$state = 'READ_HEADER';
127
128			break;
129			case 'RECORDS':
130			$state = 'READ_RECORDS';
131
132			break;
133			case 'ROW':
134			// Build value map in order to insert row into table
135			$fields = [];
136			$vars = [];
137			$nulls = [];
138			$format = [];
139			$types = [];
140			$i = 0;
141
142			foreach ($curr_row as $k => $v) {
143			$fields[$i] = $k;
144			// Check for nulls
145			if (null === $v) {
146			$nulls[$i] = 'on';
147			}
148
149			// Add to value array
150			$vars[$i] = $v;
151			// Format is always VALUE
152			$format[$i] = 'VALUE';
153			// Type is always text
154			$types[$i] = 'text';
155			++$i;
156			}
157			$status = $data->insertRow($_REQUEST['table'], $fields, $vars, $nulls, $format, $types);
158
159			if (0 !== $status) {
160			$data->rollbackTransaction();
161			$this->halt($lang['strimporterror']);
162			}
163			$curr_row = [];
164			$state = 'RECORDS';
165
166			break;
167			case 'COLUMN':
168			$curr_row[$curr_col_name] = ($curr_col_null ? null : $curr_col_val);
169			$curr_col_name = null;
170			$curr_col_val = null;
171			$curr_col_null = false;
172			$state = 'ROW';
173
174			break;
175
176			default:
177			// An unrecognised tag means failure
178			$data->rollbackTransaction();
179			$this->halt($lang['strimporterror']);
180			}
181			};
182
183			// Check that file is specified and is an uploaded file
184			if (!isset($_FILES['source']) \|\| !\is_uploaded_file($_FILES['source']['tmp_name']) \|\| !\is_readable($_FILES['source']['tmp_name'])) {
185			// Upload went wrong
186			$this->printMsg($this->lang['strimporterror-uploadedfile']);
187
188			return $this->printFooter();
189			}
190			$fd = \fopen($_FILES['source']['tmp_name'], 'rb');
191			// Check that file was opened successfully
192			if (false === $fd) {
193			// File could not be opened
194			$this->printMsg($this->lang['strimporterror']);
195
196			return $this->printFooter();
197			}
198			$null_array = self::loadNULLArray();
199			$status = $data->beginTransaction();
200
201			if (0 !== $status) {
202			$this->halt($this->lang['strimporterror']);
203			}
204
205			// If format is set to 'auto', then determine format automatically from file name
206			if ('auto' === $_REQUEST['format']) {
207			$extension = \mb_substr(\mb_strrchr($_FILES['source']['name'], '.'), 1);
208
209			switch ($extension) {
210			case 'csv':
211			$_REQUEST['format'] = 'csv';
212
213			break;
214			case 'txt':
215			$_REQUEST['format'] = 'tab';
216
217			break;
218			case 'xml':
219			$_REQUEST['format'] = 'xml';
220
221			break;
222
223			default:
224			$data->rollbackTransaction();
225			$this->halt($this->lang['strimporterror-fileformat']);
226			}
227			}
228
229			// Do different import technique depending on file format
230			switch ($_REQUEST['format']) {
231			case 'csv':
232			case 'tab':
233			// XXX: Length of CSV lines limited to 100k
234			$csv_max_line = 100000;
235			// Set delimiter to tabs or commas
236			if ('csv' === $_REQUEST['format']) {
237			$csv_delimiter = ',';
238			} else {
239			$csv_delimiter = "\t";
240			}
241
242			// Get first line of field names
243			$fields = \fgetcsv($fd, $csv_max_line, $csv_delimiter);
244			$row = 2; //We start on the line AFTER the field names
245
246			while ($line = \fgetcsv($fd, $csv_max_line, $csv_delimiter)) {
247			// Build value map
248			$t_fields = [];
249			$vars = [];
250			$nulls = [];
251			$format = [];
252			$types = [];
253			$i = 0;
254
255			foreach ($fields as $f) {
256			// Check that there is a column
257			if (!isset($line[$i])) {
258			$this->halt(\sprintf($this->lang['strimporterrorline-badcolumnnum'], $row));
259			}
260			$t_fields[$i] = $f;
261
262			// Check for nulls
263			if (self::determineNull($line[$i], $null_array)) {
264			$nulls[$i] = 'on';
265			}
266			// Add to value array
267			$vars[$i] = $line[$i];
268			// Format is always VALUE
269			$format[$i] = 'VALUE';
270			// Type is always text
271			$types[$i] = 'text';
272			++$i;
273			}
274
275			$status = $data->insertRow($_REQUEST['table'], $t_fields, $vars, $nulls, $format, $types);
276
277			if (0 !== $status) {
278			$data->rollbackTransaction();
279			$this->halt(\sprintf($this->lang['strimporterrorline'], $row));
280			}
281			++$row;
282			}
283
284			break;
285			case 'xml':
286			$parser = \xml_parser_create();
287			\xml_set_element_handler($parser, $_startElement, $_endElement);
288			\xml_set_character_data_handler($parser, $_charHandler);
289
290			while (!\feof($fd)) {
291			$line = \fgets($fd, 4096);
292			\xml_parse($parser, $line);
293			}
294
295			\xml_parser_free($parser);
296
297			break;
298
299			default:
300			// Unknown type
301			$data->rollbackTransaction();
302			$this->halt($this->lang['strinvalidparam']);
303			}
304
305			$status = $data->endTransaction();
306
307			if (0 !== $status) {
308			$this->printMsg($this->lang['strimporterror']);
309			}
310			\fclose($fd);
311
312			$this->printMsg($this->lang['strfileimported']);
313
314			return $this->printFooter();
315			}
316
317			public static function loadNULLArray()
318			{
319			$array = [];
320
321			if (isset($_POST['allowednulls'])) {
322			foreach ($_POST['allowednulls'] as $null_char) {
323			$array[] = $null_char;
324			}
325			}
326
327			return $array;
328			}
329
330			/**
331			* @param null\|string $field
332			* @param mixed $null_array
333			*/
334			public static function determineNull(?string $field, $null_array)
335			{
336			return \in_array($field, $null_array, true);
337			}
338			}
339

HuasoFoundries / phpPgAdmin6

DataimportController::render() F last analyzed 2020-12-30 10:51 UTC

Complexity

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DataimportController::render() F
last analyzed 2020-12-30 10:51 UTC