HuasoFoundries /
phpPgAdmin6
| Total Complexity | 148 |
| Total Lines | 925 |
| Duplicated Lines | 0 % |
| Changes | 13 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Postgres often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Postgres, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 15 | class Postgres extends ADOdbBase |
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| 16 | { |
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| 17 | use \PHPPgAdmin\Traits\HelperTrait; |
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| 18 | use \PHPPgAdmin\Database\Traits\AggregateTrait; |
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| 19 | use \PHPPgAdmin\Database\Traits\DatabaseTrait; |
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| 20 | use \PHPPgAdmin\Database\Traits\DomainTrait; |
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| 21 | use \PHPPgAdmin\Database\Traits\FtsTrait; |
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| 22 | use \PHPPgAdmin\Database\Traits\FunctionTrait; |
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| 23 | use \PHPPgAdmin\Database\Traits\IndexTrait; |
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| 24 | use \PHPPgAdmin\Database\Traits\OperatorTrait; |
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| 25 | use \PHPPgAdmin\Database\Traits\RoleTrait; |
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| 26 | use \PHPPgAdmin\Database\Traits\SchemaTrait; |
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| 27 | use \PHPPgAdmin\Database\Traits\SequenceTrait; |
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| 28 | use \PHPPgAdmin\Database\Traits\TablespaceTrait; |
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| 29 | use \PHPPgAdmin\Database\Traits\TableTrait; |
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| 30 | use \PHPPgAdmin\Database\Traits\TypeTrait; |
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| 31 | use \PHPPgAdmin\Database\Traits\ViewTrait; |
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| 32 | use \PHPPgAdmin\Database\Traits\StatsTrait; |
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| 33 | use \PHPPgAdmin\Database\Traits\PrivilegesTrait; |
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| 34 | |||
| 35 | public $lang; |
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| 36 | |||
| 37 | public $conf; |
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| 38 | |||
| 39 | /** |
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| 40 | * @var float |
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| 41 | */ |
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| 42 | public $major_version = 9.6; |
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| 43 | |||
| 44 | /** |
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| 45 | * @var class-string |
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|
Documentation
Bug
introduced
by
|
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| 46 | */ |
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| 47 | public $help_classname = \PHPPgAdmin\Help\PostgresDoc::class; |
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| 48 | |||
| 49 | /** |
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| 50 | * @var \PHPPgAdmin\Help\PostgresDoc |
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| 51 | */ |
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| 52 | public $help_class; |
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| 53 | |||
| 54 | protected $container; |
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| 55 | |||
| 56 | protected $server_info; |
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| 57 | |||
| 58 | public function __construct(&$conn, $container, $server_info) |
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| 59 | { |
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| 60 | //$this->prtrace('major_version :' . $this->major_version); |
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| 61 | $this->conn = $conn; |
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| 62 | $this->container = $container; |
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| 63 | |||
| 64 | $this->lang = $container->get('lang'); |
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| 65 | $this->conf = $container->get('conf'); |
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| 66 | $this->server_info = $server_info; |
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| 67 | $this->help_class = new $this->help_classname($this->conf, $this->major_version); |
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| 68 | $this->lastExecutedSql = ''; |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * Fetch a URL (or array of URLs) for a given help page. |
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| 73 | * |
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| 74 | * @param string $help |
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| 75 | * |
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| 76 | * @return null|array|string the help page or pages related to the $help topic, or null if none exists |
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| 77 | */ |
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| 78 | public function getHelp($help) |
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| 98 | } |
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| 99 | |||
| 100 | /** |
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| 101 | * Gets the help pages. |
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| 102 | * get help page by instancing the corresponding help class |
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| 103 | * if $this->help_page and $this->help_base are set, this function is a noop. |
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| 104 | * |
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| 105 | * @return array<array-key, string>|null|string |
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| 106 | */ |
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| 107 | public function getHelpPages() |
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| 108 | { |
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| 109 | return $this->help_class->getHelpTopics(); |
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| 110 | } |
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| 111 | |||
| 112 | // Formatting functions |
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| 113 | |||
| 114 | /** |
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| 115 | * Outputs the HTML code for a particular field. |
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| 116 | * |
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| 117 | * @param string $name The name to give the field |
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| 118 | * @param mixed $value The value of the field. Note this could be 'numeric(7,2)' sort of thing... |
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| 119 | * @param string $type The database type of the field |
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| 120 | * @param array $extras An array of attributes name as key and attributes' values as value |
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| 121 | */ |
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| 122 | public function printField($name, $value, $type, $extras = []): void |
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| 191 | } |
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| 192 | } |
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| 193 | |||
| 194 | /** |
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| 195 | * Searches all system catalogs to find objects that match a certain name. |
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| 196 | * |
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| 197 | * @param string $term The search term |
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| 198 | * @param string $filter The object type to restrict to ('' means no restriction) |
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| 199 | * |
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| 200 | * @return int|\PHPPgAdmin\ADORecordSet A recordset |
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| 201 | */ |
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| 202 | public function findObject($term, $filter) |
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| 203 | { |
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| 204 | $conf = $this->conf; |
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| 205 | |||
| 206 | /*about escaping: |
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| 207 | * SET standard_conforming_string is not available before 8.2 |
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| 208 | * So we must use PostgreSQL specific notation :/ |
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| 209 | * E'' notation is not available before 8.1 |
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| 210 | * $$ is available since 8.0 |
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| 211 | * Nothing specific from 7.4 |
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| 212 | */ |
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| 213 | |||
| 214 | // Escape search term for ILIKE match |
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| 215 | $this->clean($term); |
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| 216 | $this->clean($filter); |
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| 217 | $term = \str_replace('_', '\_', $term); |
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| 218 | $term = \str_replace('%', '\%', $term); |
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| 219 | |||
| 220 | // Exclude system relations if necessary |
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| 221 | if (!$conf['show_system']) { |
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| 222 | // XXX: The mention of information_schema here is in the wrong place, but |
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| 223 | // it's the quickest fix to exclude the info schema from 7.4 |
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| 224 | $where = " AND pn.nspname NOT LIKE \$_PATERN_\$pg\\_%\$_PATERN_\$ AND pn.nspname != 'information_schema'"; |
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| 225 | $lan_where = 'AND pl.lanispl'; |
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| 226 | } else { |
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| 227 | $where = ''; |
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| 228 | $lan_where = ''; |
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| 229 | } |
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| 230 | |||
| 231 | // Apply outer filter |
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| 232 | $sql = ''; |
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| 233 | |||
| 234 | if ('' !== $filter) { |
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| 235 | $sql = 'SELECT * FROM ('; |
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| 236 | } |
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| 237 | |||
| 238 | $term = "\$_PATERN_\$%{$term}%\$_PATERN_\$"; |
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| 239 | |||
| 240 | $sql .= " |
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| 241 | SELECT 'SCHEMA' AS type, oid, NULL AS schemaname, NULL AS relname, nspname AS name |
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| 242 | FROM pg_catalog.pg_namespace pn WHERE nspname ILIKE {$term} {$where} |
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| 243 | UNION ALL |
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| 244 | SELECT CASE WHEN relkind='r' THEN 'TABLE' WHEN relkind='v' THEN 'VIEW' WHEN relkind='S' THEN 'SEQUENCE' END, pc.oid, |
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| 245 | pn.nspname, NULL, pc.relname FROM pg_catalog.pg_class pc, pg_catalog.pg_namespace pn |
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| 246 | WHERE pc.relnamespace=pn.oid AND relkind IN ('r', 'v', 'S') AND relname ILIKE {$term} {$where} |
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| 247 | UNION ALL |
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| 248 | SELECT CASE WHEN pc.relkind='r' THEN 'COLUMNTABLE' ELSE 'COLUMNVIEW' END, NULL, pn.nspname, pc.relname, pa.attname FROM pg_catalog.pg_class pc, pg_catalog.pg_namespace pn, |
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| 249 | pg_catalog.pg_attribute pa WHERE pc.relnamespace=pn.oid AND pc.oid=pa.attrelid |
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| 250 | AND pa.attname ILIKE {$term} AND pa.attnum > 0 AND NOT pa.attisdropped AND pc.relkind IN ('r', 'v') {$where} |
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| 251 | UNION ALL |
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| 252 | SELECT 'FUNCTION', pp.oid, pn.nspname, NULL, pp.proname || '(' || pg_catalog.oidvectortypes(pp.proargtypes) || ')' FROM pg_catalog.pg_proc pp, pg_catalog.pg_namespace pn |
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| 253 | WHERE pp.pronamespace=pn.oid AND NOT pp.proisagg AND pp.proname ILIKE {$term} {$where} |
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| 254 | UNION ALL |
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| 255 | SELECT 'INDEX', NULL, pn.nspname, pc.relname, pc2.relname FROM pg_catalog.pg_class pc, pg_catalog.pg_namespace pn, |
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| 256 | pg_catalog.pg_index pi, pg_catalog.pg_class pc2 WHERE pc.relnamespace=pn.oid AND pc.oid=pi.indrelid |
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| 257 | AND pi.indexrelid=pc2.oid |
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| 258 | AND NOT EXISTS ( |
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| 259 | SELECT 1 FROM pg_catalog.pg_depend d JOIN pg_catalog.pg_constraint c |
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| 260 | ON (d.refclassid = c.tableoid AND d.refobjid = c.oid) |
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| 261 | WHERE d.classid = pc2.tableoid AND d.objid = pc2.oid AND d.deptype = 'i' AND c.contype IN ('u', 'p') |
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| 262 | ) |
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| 263 | AND pc2.relname ILIKE {$term} {$where} |
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| 264 | UNION ALL |
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| 265 | SELECT 'CONSTRAINTTABLE', NULL, pn.nspname, pc.relname, pc2.conname FROM pg_catalog.pg_class pc, pg_catalog.pg_namespace pn, |
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| 266 | pg_catalog.pg_constraint pc2 WHERE pc.relnamespace=pn.oid AND pc.oid=pc2.conrelid AND pc2.conrelid != 0 |
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| 267 | AND CASE WHEN pc2.contype IN ('f', 'c') THEN TRUE ELSE NOT EXISTS ( |
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| 268 | SELECT 1 FROM pg_catalog.pg_depend d JOIN pg_catalog.pg_constraint c |
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| 269 | ON (d.refclassid = c.tableoid AND d.refobjid = c.oid) |
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| 270 | WHERE d.classid = pc2.tableoid AND d.objid = pc2.oid AND d.deptype = 'i' AND c.contype IN ('u', 'p') |
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| 271 | ) END |
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| 272 | AND pc2.conname ILIKE {$term} {$where} |
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| 273 | UNION ALL |
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| 274 | SELECT 'CONSTRAINTDOMAIN', pt.oid, pn.nspname, pt.typname, pc.conname FROM pg_catalog.pg_type pt, pg_catalog.pg_namespace pn, |
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| 275 | pg_catalog.pg_constraint pc WHERE pt.typnamespace=pn.oid AND pt.oid=pc.contypid AND pc.contypid != 0 |
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| 276 | AND pc.conname ILIKE {$term} {$where} |
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| 277 | UNION ALL |
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| 278 | SELECT 'TRIGGER', NULL, pn.nspname, pc.relname, pt.tgname FROM pg_catalog.pg_class pc, pg_catalog.pg_namespace pn, |
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| 279 | pg_catalog.pg_trigger pt WHERE pc.relnamespace=pn.oid AND pc.oid=pt.tgrelid |
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| 280 | AND ( pt.tgconstraint = 0 OR NOT EXISTS |
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| 281 | (SELECT 1 FROM pg_catalog.pg_depend d JOIN pg_catalog.pg_constraint c |
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| 282 | ON (d.refclassid = c.tableoid AND d.refobjid = c.oid) |
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| 283 | WHERE d.classid = pt.tableoid AND d.objid = pt.oid AND d.deptype = 'i' AND c.contype = 'f')) |
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| 284 | AND pt.tgname ILIKE {$term} {$where} |
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| 285 | UNION ALL |
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| 286 | SELECT 'RULETABLE', NULL, pn.nspname AS schemaname, c.relname AS tablename, r.rulename FROM pg_catalog.pg_rewrite r |
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| 287 | JOIN pg_catalog.pg_class c ON c.oid = r.ev_class |
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| 288 | LEFT JOIN pg_catalog.pg_namespace pn ON pn.oid = c.relnamespace |
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| 289 | WHERE c.relkind='r' AND r.rulename != '_RETURN' AND r.rulename ILIKE {$term} {$where} |
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| 290 | UNION ALL |
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| 291 | SELECT 'RULEVIEW', NULL, pn.nspname AS schemaname, c.relname AS tablename, r.rulename FROM pg_catalog.pg_rewrite r |
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| 292 | JOIN pg_catalog.pg_class c ON c.oid = r.ev_class |
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| 293 | LEFT JOIN pg_catalog.pg_namespace pn ON pn.oid = c.relnamespace |
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| 294 | WHERE c.relkind='v' AND r.rulename != '_RETURN' AND r.rulename ILIKE {$term} {$where} |
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| 295 | "; |
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| 296 | |||
| 297 | // Add advanced objects if show_advanced is set |
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| 298 | if ($conf['show_advanced']) { |
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| 299 | $sql .= " |
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| 300 | UNION ALL |
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| 301 | SELECT CASE WHEN pt.typtype='d' THEN 'DOMAIN' ELSE 'TYPE' END, pt.oid, pn.nspname, NULL, |
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| 302 | pt.typname FROM pg_catalog.pg_type pt, pg_catalog.pg_namespace pn |
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| 303 | WHERE pt.typnamespace=pn.oid AND typname ILIKE {$term} |
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| 304 | AND (pt.typrelid = 0 OR (SELECT c.relkind = 'c' FROM pg_catalog.pg_class c WHERE c.oid = pt.typrelid)) |
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| 305 | {$where} |
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| 306 | UNION ALL |
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| 307 | SELECT 'OPERATOR', po.oid, pn.nspname, NULL, po.oprname FROM pg_catalog.pg_operator po, pg_catalog.pg_namespace pn |
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| 308 | WHERE po.oprnamespace=pn.oid AND oprname ILIKE {$term} {$where} |
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| 309 | UNION ALL |
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| 310 | SELECT 'CONVERSION', pc.oid, pn.nspname, NULL, pc.conname FROM pg_catalog.pg_conversion pc, |
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| 311 | pg_catalog.pg_namespace pn WHERE pc.connamespace=pn.oid AND conname ILIKE {$term} {$where} |
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| 312 | UNION ALL |
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| 313 | SELECT 'LANGUAGE', pl.oid, NULL, NULL, pl.lanname FROM pg_catalog.pg_language pl |
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| 314 | WHERE lanname ILIKE {$term} {$lan_where} |
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| 315 | UNION ALL |
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| 316 | SELECT DISTINCT ON (p.proname) 'AGGREGATE', p.oid, pn.nspname, NULL, p.proname FROM pg_catalog.pg_proc p |
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| 317 | LEFT JOIN pg_catalog.pg_namespace pn ON p.pronamespace=pn.oid |
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| 318 | WHERE p.proisagg AND p.proname ILIKE {$term} {$where} |
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| 319 | UNION ALL |
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| 320 | SELECT DISTINCT ON (po.opcname) 'OPCLASS', po.oid, pn.nspname, NULL, po.opcname FROM pg_catalog.pg_opclass po, |
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| 321 | pg_catalog.pg_namespace pn WHERE po.opcnamespace=pn.oid |
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| 322 | AND po.opcname ILIKE {$term} {$where} |
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| 323 | "; |
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| 324 | } else { |
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| 325 | // Otherwise just add domains |
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| 326 | $sql .= " |
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| 327 | UNION ALL |
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| 328 | SELECT 'DOMAIN', pt.oid, pn.nspname, NULL, |
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| 329 | pt.typname FROM pg_catalog.pg_type pt, pg_catalog.pg_namespace pn |
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| 330 | WHERE pt.typnamespace=pn.oid AND pt.typtype='d' AND typname ILIKE {$term} |
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| 331 | AND (pt.typrelid = 0 OR (SELECT c.relkind = 'c' FROM pg_catalog.pg_class c WHERE c.oid = pt.typrelid)) |
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| 332 | {$where} |
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| 333 | "; |
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| 334 | } |
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| 335 | |||
| 336 | if ('' !== $filter) { |
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| 337 | // We use like to make RULE, CONSTRAINT and COLUMN searches work |
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| 338 | $sql .= ") AS sub WHERE type LIKE '{$filter}%' "; |
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| 339 | } |
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| 340 | |||
| 341 | $sql .= 'ORDER BY type, schemaname, relname, name'; |
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| 342 | |||
| 343 | return $this->selectSet($sql); |
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| 344 | } |
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| 345 | |||
| 346 | /** |
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| 347 | * Gets all languages. |
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| 348 | * |
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| 349 | * @param bool $all True to get all languages, regardless of show_system |
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| 350 | * |
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| 351 | * @return int|\PHPPgAdmin\ADORecordSet A recordset |
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| 352 | */ |
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| 353 | public function getLanguages($all = false) |
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| 354 | { |
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| 355 | $conf = $this->conf; |
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| 356 | |||
| 357 | if ($conf['show_system'] || $all) { |
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| 358 | $where = ''; |
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| 359 | } else { |
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| 360 | $where = 'WHERE lanispl'; |
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| 361 | } |
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| 362 | |||
| 363 | $sql = " |
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| 364 | SELECT |
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| 365 | lanname, lanpltrusted, |
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| 366 | lanplcallfoid::pg_catalog.regproc AS lanplcallf |
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| 367 | FROM |
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| 368 | pg_catalog.pg_language |
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| 369 | {$where} |
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| 370 | ORDER BY lanname |
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| 371 | "; |
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| 372 | |||
| 373 | return $this->selectSet($sql); |
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| 374 | } |
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| 375 | |||
| 376 | /** |
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| 377 | * Executes an SQL script as a series of SQL statements. Returns |
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| 378 | * the result of the final step. This is a very complicated lexer |
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| 379 | * based on the REL7_4_STABLE src/bin/psql/mainloop.c lexer in |
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| 380 | * the PostgreSQL source code. |
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| 381 | * XXX: It does not handle multibyte languages properly. |
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| 382 | * |
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| 383 | * @param string $name Entry in $_FILES to use |
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| 384 | * @param null|callable $callback (optional) Callback function to call with each query, its result and line number |
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| 385 | * |
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| 386 | * @return bool|mixed true for general success, false on any failure, or resultset |
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| 387 | */ |
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| 388 | public function executeScript($name, $callback = null) |
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| 389 | { |
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| 390 | // This whole function isn't very encapsulated, but hey... |
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| 391 | $conn = $this->conn->_connectionID; |
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| 392 | |||
| 393 | if (!\is_uploaded_file($_FILES[$name]['tmp_name'])) { |
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| 394 | return false; |
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| 395 | } |
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| 396 | |||
| 397 | $fd = \fopen($_FILES[$name]['tmp_name'], 'rb'); |
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| 398 | |||
| 399 | if (false === $fd) { |
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| 400 | return false; |
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| 401 | } |
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| 402 | |||
| 403 | // Build up each SQL statement, they can be multiline |
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| 404 | $query_buf = null; |
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| 405 | $query_start = 0; |
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| 406 | $in_quote = 0; |
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| 407 | $in_xcomment = 0; |
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| 408 | $bslash_count = 0; |
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| 409 | $dol_quote = ''; |
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| 410 | $paren_level = 0; |
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| 411 | $len = 0; |
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| 412 | $i = 0; |
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| 413 | $prevlen = 0; |
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| 414 | $thislen = 0; |
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| 415 | $lineno = 0; |
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| 416 | |||
| 417 | // Loop over each line in the file |
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| 418 | while (!\feof($fd)) { |
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| 419 | $line = \fgets($fd); |
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| 420 | ++$lineno; |
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| 421 | |||
| 422 | // Nothing left on line? Then ignore... |
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| 423 | if ('' === \trim($line)) { |
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| 424 | continue; |
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| 425 | } |
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| 426 | |||
| 427 | $len = \mb_strlen($line); |
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| 428 | $query_start = 0; |
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| 429 | |||
| 430 | /** |
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| 431 | * Parse line, looking for command separators. |
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| 432 | * |
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| 433 | * The current character is at line[i], the prior character at line[i |
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| 434 | * - prevlen], the next character at line[i + thislen]. |
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| 435 | */ |
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| 436 | $prevlen = 0; |
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| 437 | $thislen = (0 < $len) ? 1 : 0; |
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| 438 | |||
| 439 | for ($i = 0; $i < $len; $this->advance_1($i, $prevlen, $thislen)) { |
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| 440 | /* was the previous character a backslash? */ |
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| 441 | if (0 < $i && '\\' === \mb_substr($line, $i - $prevlen, 1)) { |
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| 442 | $this->prtrace('bslash_count', $bslash_count, $line); |
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| 443 | ++$bslash_count; |
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| 444 | } else { |
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| 445 | $bslash_count = 0; |
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| 446 | } |
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| 447 | |||
| 448 | /* |
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| 449 | * It is important to place the in_* test routines before the |
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| 450 | * in_* detection routines. i.e. we have to test if we are in |
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| 451 | * a quote before testing for comments. |
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| 452 | */ |
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| 453 | |||
| 454 | /* in quote? */ |
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| 455 | if (0 !== $in_quote) { |
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| 456 | //$this->prtrace('in_quote', $in_quote, $line); |
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| 457 | /* |
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| 458 | * end of quote if matching non-backslashed character. |
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| 459 | * backslashes don't count for double quotes, though. |
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| 460 | */ |
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| 461 | if (\mb_substr($line, $i, 1) === $in_quote && |
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| 462 | (0 === $bslash_count % 2 || '"' === $in_quote) |
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| 463 | ) { |
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| 464 | $in_quote = 0; |
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| 465 | } |
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| 466 | } elseif ($dol_quote) { |
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| 467 | $this->prtrace('dol_quote', $dol_quote, $line); |
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| 468 | |||
| 469 | if (0 === \strncmp(\mb_substr($line, $i), $dol_quote, \mb_strlen($dol_quote))) { |
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| 470 | $this->advance_1($i, $prevlen, $thislen); |
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| 471 | |||
| 472 | while ('$' !== \mb_substr($line, $i, 1)) { |
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| 473 | $this->advance_1($i, $prevlen, $thislen); |
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| 474 | } |
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| 475 | |||
| 476 | $dol_quote = ''; |
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| 477 | } |
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| 478 | } elseif ('/*' === \mb_substr($line, $i, 2)) { |
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| 479 | $this->prtrace('open_xcomment', $in_xcomment, $line, $i, $prevlen, $thislen); |
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| 480 | |||
| 481 | if (0 === $in_xcomment) { |
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| 482 | ++$in_xcomment; |
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| 483 | $finishpos = \mb_strpos(\mb_substr($line, $i, $len), '*/'); |
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| 484 | |||
| 485 | if (false === $finishpos) { |
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| 486 | $line = \mb_substr($line, 0, $i); /* remove comment */ |
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| 487 | |||
| 488 | break; |
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| 489 | } |
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| 490 | $pre = \mb_substr($line, 0, $i); |
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| 491 | $post = \mb_substr($line, $i + 2 + $finishpos, $len); |
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| 492 | $line = $pre . ' ' . $post; |
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| 493 | $in_xcomment = 0; |
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| 494 | $i = 0; |
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| 495 | } |
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| 496 | } elseif ($in_xcomment) { |
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| 497 | $position = \mb_strpos(\mb_substr($line, $i, $len), '*/'); |
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| 498 | |||
| 499 | if (false === $position) { |
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| 500 | $line = ''; |
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| 501 | |||
| 502 | break; |
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| 503 | } |
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| 504 | |||
| 505 | $substr = \mb_substr($line, $i, 2); |
||
| 506 | |||
| 507 | if ('*/' === $substr && !--$in_xcomment) { |
||
| 508 | $line = \mb_substr($line, $i + 2, $len); |
||
| 509 | $i += 2; |
||
| 510 | $this->advance_1($i, $prevlen, $thislen); |
||
| 511 | } |
||
| 512 | // old logic |
||
| 513 | // } else if (substr($line, $i, 2) == '/*') { |
||
| 514 | // if ($in_xcomment == 0) { |
||
| 515 | // ++$in_xcomment; |
||
| 516 | // $this->advance_1($i, $prevlen, $thislen); |
||
| 517 | // } |
||
| 518 | // } else if ($in_xcomment) { |
||
| 519 | // $substr = substr($line, $i, 2); |
||
| 520 | // if ($substr == '*/' && !--$in_xcomment) { |
||
| 521 | // $this->advance_1($i, $prevlen, $thislen); |
||
| 522 | // } |
||
| 523 | } elseif ('\'' === \mb_substr($line, $i, 1) || '"' === \mb_substr($line, $i, 1)) { |
||
| 524 | $in_quote = \mb_substr($line, $i, 1); |
||
| 525 | } elseif (!$dol_quote && $this->valid_dolquote(\mb_substr($line, $i))) { |
||
| 526 | $dol_end = \mb_strpos(\mb_substr($line, $i + 1), '$'); |
||
| 527 | $dol_quote = \mb_substr($line, $i, $dol_end + 1); |
||
| 528 | $this->advance_1($i, $prevlen, $thislen); |
||
| 529 | |||
| 530 | while ('$' !== \mb_substr($line, $i, 1)) { |
||
| 531 | $this->advance_1($i, $prevlen, $thislen); |
||
| 532 | } |
||
| 533 | } else { |
||
| 534 | if ('--' === \mb_substr($line, $i, 2)) { |
||
| 535 | $line = \mb_substr($line, 0, $i); /* remove comment */ |
||
| 536 | |||
| 537 | break; |
||
| 538 | } /* count nested parentheses */ |
||
| 539 | |||
| 540 | if ('(' === \mb_substr($line, $i, 1)) { |
||
| 541 | ++$paren_level; |
||
| 542 | } elseif (')' === \mb_substr($line, $i, 1) && 0 < $paren_level) { |
||
| 543 | --$paren_level; |
||
| 544 | } elseif (';' === \mb_substr($line, $i, 1) && !$bslash_count && !$paren_level) { |
||
| 545 | $subline = \mb_substr(\mb_substr($line, 0, $i), $query_start); |
||
| 546 | /* |
||
| 547 | * insert a cosmetic newline, if this is not the first |
||
| 548 | * line in the buffer |
||
| 549 | */ |
||
| 550 | if (0 < \mb_strlen($query_buf)) { |
||
| 551 | $query_buf .= "\n"; |
||
| 552 | } |
||
| 553 | |||
| 554 | /* append the line to the query buffer */ |
||
| 555 | $query_buf .= $subline; |
||
| 556 | /* is there anything in the query_buf? */ |
||
| 557 | if (\trim($query_buf)) { |
||
| 558 | $query_buf .= ';'; |
||
| 559 | |||
| 560 | // Execute the query. PHP cannot execute |
||
| 561 | // empty queries, unlike libpq |
||
| 562 | $res = \pg_query($conn, $query_buf); |
||
| 563 | |||
| 564 | // Call the callback function for display |
||
| 565 | if (null !== $callback) { |
||
| 566 | $callback($query_buf, $res, $lineno); |
||
| 567 | } |
||
| 568 | |||
| 569 | // Check for COPY request |
||
| 570 | if (4 === \pg_result_status($res)) { |
||
| 571 | // 4 == PGSQL_COPY_FROM |
||
| 572 | while (!\feof($fd)) { |
||
| 573 | $copy = \fgets($fd, 32768); |
||
| 574 | ++$lineno; |
||
| 575 | \pg_put_line($conn, $copy); |
||
| 576 | |||
| 577 | if ("\\.\n" === $copy || "\\.\r\n" === $copy) { |
||
| 578 | \pg_end_copy($conn); |
||
| 579 | |||
| 580 | break; |
||
| 581 | } |
||
| 582 | } |
||
| 583 | } |
||
| 584 | } |
||
| 585 | $query_buf = null; |
||
| 586 | $query_start = $i + $thislen; |
||
| 587 | } elseif (\preg_match('/^[_[:alpha:]]$/', \mb_substr($line, $i, 1))) { |
||
| 588 | $sub = \mb_substr($line, $i, $thislen); |
||
| 589 | |||
| 590 | while (\preg_match('/^[\$_A-Za-z0-9]$/', $sub)) { |
||
| 591 | /* keep going while we still have identifier chars */ |
||
| 592 | $this->advance_1($i, $prevlen, $thislen); |
||
| 593 | $sub = \mb_substr($line, $i, $thislen); |
||
| 594 | } |
||
| 595 | // Since we're now over the next character to be examined, it is necessary |
||
| 596 | // to move back one space. |
||
| 597 | $i -= $prevlen; |
||
| 598 | } |
||
| 599 | } |
||
| 600 | } // end for |
||
| 601 | |||
| 602 | /* Put the rest of the line in the query buffer. */ |
||
| 603 | $subline = \mb_substr($line, $query_start); |
||
| 604 | |||
| 605 | if ($in_quote || $dol_quote || \strspn($subline, " \t\n\r") !== \mb_strlen($subline)) { |
||
| 606 | if (0 < \mb_strlen($query_buf)) { |
||
| 607 | $query_buf .= "\n"; |
||
| 608 | } |
||
| 609 | |||
| 610 | $query_buf .= $subline; |
||
| 611 | } |
||
| 612 | |||
| 613 | $line = null; |
||
| 614 | } // end while |
||
| 615 | |||
| 616 | $res = true; |
||
| 617 | /* |
||
| 618 | * Process query at the end of file without a semicolon, so long as |
||
| 619 | * it's non-empty. |
||
| 620 | */ |
||
| 621 | if (0 < \mb_strlen($query_buf) && \strspn($query_buf, " \t\n\r") !== \mb_strlen($query_buf)) { |
||
| 622 | // Execute the query |
||
| 623 | $res = \pg_query($conn, $query_buf); |
||
| 624 | |||
| 625 | // Call the callback function for display |
||
| 626 | if (null !== $callback) { |
||
| 627 | $callback($query_buf, $res, $lineno); |
||
| 628 | } |
||
| 629 | |||
| 630 | // Check for COPY request |
||
| 631 | if (4 === \pg_result_status($res)) { |
||
| 632 | // 4 == PGSQL_COPY_FROM |
||
| 633 | while (!\feof($fd)) { |
||
| 634 | $copy = \fgets($fd, 32768); |
||
| 635 | ++$lineno; |
||
| 636 | \pg_put_line($conn, $copy); |
||
| 637 | |||
| 638 | if ("\\.\n" === $copy || "\\.\r\n" === $copy) { |
||
| 639 | \pg_end_copy($conn); |
||
| 640 | |||
| 641 | break; |
||
| 642 | } |
||
| 643 | } |
||
| 644 | } |
||
| 645 | } |
||
| 646 | |||
| 647 | \fclose($fd); |
||
| 648 | |||
| 649 | return $res; |
||
| 650 | } |
||
| 651 | |||
| 652 | // Capabilities |
||
| 653 | |||
| 654 | /** |
||
| 655 | * Returns a recordset of all columns in a query. Supports paging. |
||
| 656 | * |
||
| 657 | * @param string $type Either 'QUERY' if it is an SQL query, or 'TABLE' if it is a table identifier, |
||
| 658 | * or 'SELECT" if it's a select query |
||
| 659 | * @param string $table The base table of the query. NULL for no table. |
||
| 660 | * @param string $query The query that is being executed. NULL for no query. |
||
| 661 | * @param string $sortkey The column number to sort by, or '' or null for no sorting |
||
| 662 | * @param string $sortdir The direction in which to sort the specified column ('asc' or 'desc') |
||
| 663 | * @param null|int $page The page of the relation to retrieve |
||
| 664 | * @param null|int $page_size The number of rows per page |
||
| 665 | * @param int $max_pages (return-by-ref) The max number of pages in the relation |
||
| 666 | * |
||
| 667 | * @return int|\PHPPgAdmin\ADORecordSet A recordset on success or an int with error code |
||
| 668 | * - -1 transaction error |
||
| 669 | * - -2 counting error |
||
| 670 | * - -3 page or page_size invalid |
||
| 671 | * - -4 unknown type |
||
| 672 | * - -5 failed setting transaction read only |
||
| 673 | */ |
||
| 674 | public function browseQuery($type, $table, $query, $sortkey, $sortdir, $page, $page_size, &$max_pages) |
||
| 675 | { |
||
| 676 | // Check that we're not going to divide by zero |
||
| 677 | if (!\is_numeric($page_size) || (int) $page_size !== $page_size || 0 >= $page_size) { |
||
| 678 | return -3; |
||
| 679 | } |
||
| 680 | |||
| 681 | // If $type is TABLE, then generate the query |
||
| 682 | switch ($type) { |
||
| 683 | case 'TABLE': |
||
| 684 | if (\preg_match('/^[0-9]+$/', $sortkey) && 0 < $sortkey) { |
||
| 685 | $orderby = [$sortkey => $sortdir]; |
||
| 686 | } else { |
||
| 687 | $orderby = []; |
||
| 688 | } |
||
| 689 | |||
| 690 | $query = $this->getSelectSQL($table, [], [], [], $orderby); |
||
| 691 | |||
| 692 | break; |
||
| 693 | case 'QUERY': |
||
| 694 | case 'SELECT': |
||
| 695 | // Trim query |
||
| 696 | $query = \trim($query); |
||
| 697 | // Trim off trailing semi-colon if there is one |
||
| 698 | if (';' === \mb_substr($query, \mb_strlen($query) - 1, 1)) { |
||
| 699 | $query = \mb_substr($query, 0, \mb_strlen($query) - 1); |
||
| 700 | } |
||
| 701 | |||
| 702 | break; |
||
| 703 | |||
| 704 | default: |
||
| 705 | return -4; |
||
| 706 | } |
||
| 707 | |||
| 708 | // Generate count query |
||
| 709 | $count = "SELECT COUNT(*) AS total FROM ({$query}) AS sub"; |
||
| 710 | |||
| 711 | // Open a transaction |
||
| 712 | $status = $this->beginTransaction(); |
||
| 713 | |||
| 714 | if (0 !== $status) { |
||
| 715 | return -1; |
||
| 716 | } |
||
| 717 | |||
| 718 | // If backend supports read only queries, then specify read only mode |
||
| 719 | // to avoid side effects from repeating queries that do writes. |
||
| 720 | if ($this->hasReadOnlyQueries()) { |
||
| 721 | $status = $this->execute('SET TRANSACTION READ ONLY'); |
||
| 722 | |||
| 723 | if (0 !== $status) { |
||
| 724 | $this->rollbackTransaction(); |
||
| 725 | |||
| 726 | return -5; |
||
| 727 | } |
||
| 728 | } |
||
| 729 | |||
| 730 | // Count the number of rows |
||
| 731 | $total = $this->browseQueryCount($count); |
||
| 732 | |||
| 733 | if (0 > $total) { |
||
| 734 | $this->rollbackTransaction(); |
||
| 735 | |||
| 736 | return -2; |
||
| 737 | } |
||
| 738 | |||
| 739 | // Calculate max pages |
||
| 740 | $max_pages = \ceil($total / $page_size); |
||
| 741 | |||
| 742 | // Check that page is less than or equal to max pages |
||
| 743 | if (!\is_numeric($page) || (int) $page !== $page || $page > $max_pages || 1 > $page) { |
||
| 744 | $this->rollbackTransaction(); |
||
| 745 | |||
| 746 | return -3; |
||
| 747 | } |
||
| 748 | |||
| 749 | // Set fetch mode to NUM so that duplicate field names are properly returned |
||
| 750 | // for non-table queries. Since the SELECT feature only allows selecting one |
||
| 751 | // table, duplicate fields shouldn't appear. |
||
| 752 | if ('QUERY' === $type) { |
||
| 753 | $this->conn->setFetchMode(ADODB_FETCH_NUM); |
||
| 754 | } |
||
| 755 | |||
| 756 | // Figure out ORDER BY. Sort key is always the column number (based from one) |
||
| 757 | // of the column to order by. Only need to do this for non-TABLE queries |
||
| 758 | if ('TABLE' !== $type && \preg_match('/^[0-9]+$/', $sortkey) && 0 < $sortkey) { |
||
| 759 | $orderby = " ORDER BY {$sortkey}"; |
||
| 760 | // Add sort order |
||
| 761 | if ('desc' === $sortdir) { |
||
| 762 | $orderby .= ' DESC'; |
||
| 763 | } else { |
||
| 764 | $orderby .= ' ASC'; |
||
| 765 | } |
||
| 766 | } else { |
||
| 767 | $orderby = ''; |
||
| 768 | } |
||
| 769 | |||
| 770 | // Actually retrieve the rows, with offset and limit |
||
| 771 | $rs = $this->selectSet("SELECT * FROM ({$query}) AS sub {$orderby} LIMIT {$page_size} OFFSET " . ($page - 1) * $page_size); |
||
| 772 | $status = $this->endTransaction(); |
||
| 773 | |||
| 774 | if (0 !== $status) { |
||
| 775 | $this->rollbackTransaction(); |
||
| 776 | |||
| 777 | return -1; |
||
| 778 | } |
||
| 779 | |||
| 780 | return $rs; |
||
| 781 | } |
||
| 782 | |||
| 783 | /** |
||
| 784 | * Generates the SQL for the 'select' function. |
||
| 785 | * |
||
| 786 | * @param string $table The table from which to select |
||
| 787 | * @param array $show An array of columns to show. Empty array means all columns. |
||
| 788 | * @param array $values An array mapping columns to values |
||
| 789 | * @param array $ops An array of the operators to use |
||
| 790 | * @param array $orderby (optional) An array of column numbers or names (one based) |
||
| 791 | * mapped to sort direction (asc or desc or '' or null) to order by |
||
| 792 | * |
||
| 793 | * @return string The SQL query |
||
| 794 | */ |
||
| 795 | public function getSelectSQL($table, $show, $values = [], $ops = [], $orderby = []) |
||
| 896 | } |
||
| 897 | |||
| 898 | /** |
||
| 899 | * Finds the number of rows that would be returned by a |
||
| 900 | * query. |
||
| 901 | * |
||
| 902 | * @param string $count The count query |
||
| 903 | * |
||
| 904 | * @return int|string The count of rows or -1 of no rows are found |
||
| 905 | */ |
||
| 906 | public function browseQueryCount($count) |
||
| 909 | } |
||
| 910 | |||
| 911 | /** |
||
| 912 | * A private helper method for executeScript that advances the |
||
| 913 | * character by 1. In psql this is careful to take into account |
||
| 914 | * multibyte languages, but we don't at the moment, so this function |
||
| 915 | * is someone redundant, since it will always advance by 1. |
||
| 916 | * |
||
| 917 | * @param int $i The current character position in the line |
||
| 918 | * @param int $prevlen Length of previous character (ie. 1) |
||
| 919 | * @param int $thislen Length of current character (ie. 1) |
||
| 920 | */ |
||
| 921 | protected function advance_1(&$i, &$prevlen, &$thislen): void |
||
| 922 | { |
||
| 923 | $prevlen = $thislen; |
||
| 924 | $i += $thislen; |
||
| 925 | $thislen = 1; |
||
| 926 | } |
||
| 927 | |||
| 928 | /** |
||
| 929 | * Private helper method to detect a valid $foo$ quote delimiter at |
||
| 930 | * the start of the parameter dquote. |
||
| 931 | * |
||
| 932 | * @param string $dquote |
||
| 933 | * |
||
| 934 | * @return bool true if valid, false otherwise |
||
| 935 | */ |
||
| 936 | protected function valid_dolquote($dquote) |
||
| 940 | } |
||
| 941 | } |
||
| 942 |
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