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<?php
/**
* PhpMyAdmin\Plugins\Export\Helpers\Pdf class
*/
declare(strict_types=1);
namespace PhpMyAdmin\Plugins\Export\Helpers;
use PhpMyAdmin\DatabaseInterface;
use PhpMyAdmin\Pdf as PdfLib;
use PhpMyAdmin\Relation;
use PhpMyAdmin\Transformations;
use PhpMyAdmin\Util;
use TCPDF_STATIC;
use function array_key_exists;
use function count;
use function ksort;
use function stripos;
/**
* Adapted from a LGPL script by Philip Clarke
*/
class Pdf extends PdfLib
{
/** @var array */
public $tablewidths;
/** @var array */
public $headerset;
/** @var int|float */
private $dataY;
/** @var int|float */
private $cellFontSize;
/** @var mixed */
private $titleFontSize;
/** @var mixed */
private $titleText;
/** @var mixed */
private $dbAlias;
/** @var mixed */
private $tableAlias;
/** @var mixed */
private $purpose;
/** @var array */
private $colTitles;
/** @var mixed */
private $results;
/** @var array */
private $colAlign;
/** @var mixed */
private $titleWidth;
/** @var mixed */
private $colFits;
/** @var array */
private $displayColumn;
/** @var int */
private $numFields;
/** @var array */
private $fields;
/** @var int|float */
private $sColWidth;
/** @var mixed */
private $currentDb;
/** @var mixed */
private $currentTable;
/** @var array */
private $aliases;
/** @var Relation */
private $relation;
/** @var Transformations */
private $transformations;
/**
* Constructs PDF and configures standard parameters.
*
* @param string $orientation page orientation
* @param string $unit unit
* @param string $format the format used for pages
* @param bool $unicode true means that the input text is unicode
* @param string $encoding charset encoding; default is UTF-8.
* @param bool $diskcache if true reduce the RAM memory usage by caching
* temporary data on filesystem (slower).
* @param bool $pdfa If TRUE set the document to PDF/A mode.
*
* @access public
*/
public function __construct(
$orientation = 'P',
$unit = 'mm',
$format = 'A4',
$unicode = true,
$encoding = 'UTF-8',
$diskcache = false,
$pdfa = false
) {
global $dbi;
parent::__construct(
$orientation,
$unit,
$format,
$unicode,
$encoding,
$diskcache,
$pdfa
);
$this->relation = new Relation($dbi);
$this->transformations = new Transformations();
}
/**
* Add page if needed.
*
* @param float|int $h cell height. Default value: 0
* @param mixed $y starting y position, leave empty for current
* position
* @param bool $addpage if true add a page, otherwise only return
* the true/false state
*
* @return bool true in case of page break, false otherwise.
*/
public function checkPageBreak($h = 0, $y = '', $addpage = true)
{
if (TCPDF_STATIC::empty_string($y)) {
$y = $this->y;
}
$current_page = $this->page;
if (($y + $h > $this->PageBreakTrigger)
&& (! $this->InFooter)
&& $this->AcceptPageBreak()
) {
if ($addpage) {
//Automatic page break
$x = $this->x;
$this->AddPage($this->CurOrientation);
$this->y = $this->dataY;
$oldpage = $this->page - 1;
$this_page_orm = $this->pagedim[$this->page]['orm'];
$old_page_orm = $this->pagedim[$oldpage]['orm'];
$this_page_olm = $this->pagedim[$this->page]['olm'];
$old_page_olm = $this->pagedim[$oldpage]['olm'];
if ($this->rtl) {
if ($this_page_orm != $old_page_orm) {
$this->x = $x - ($this_page_orm - $old_page_orm);
} else {
$this->x = $x;
}
} else {
if ($this_page_olm != $old_page_olm) {
$this->x = $x + $this_page_olm - $old_page_olm;
} else {
$this->x = $x;
}
}
}
return true;
}
// account for columns mode
return $current_page != $this->page;
}
/**
* This method is used to render the page header.
*
* @return void
*/
// @codingStandardsIgnoreLine
public function Header()
{
global $maxY;
// We don't want automatic page breaks while generating header
// as this can lead to infinite recursion as auto generated page
// will want header as well causing another page break
// FIXME: Better approach might be to try to compact the content
$this->SetAutoPageBreak(false);
// Check if header for this page already exists
if (! isset($this->headerset[$this->page])) {
$this->SetY($this->tMargin - ($this->FontSizePt / $this->k) * 5);
$this->cellFontSize = $this->FontSizePt;
$this->SetFont(
PdfLib::PMA_PDF_FONT,
'',
($this->titleFontSize
?: $this->FontSizePt)
);
$this->Cell(0, $this->FontSizePt, $this->titleText, 0, 1, 'C');
$this->SetFont(PdfLib::PMA_PDF_FONT, '', $this->cellFontSize);
$this->SetY($this->tMargin - ($this->FontSizePt / $this->k) * 2.5);
$this->Cell(
0,
$this->FontSizePt,
__('Database:') . ' ' . $this->dbAlias . ', '
. __('Table:') . ' ' . $this->tableAlias . ', '
. __('Purpose:') . ' ' . $this->purpose,
0,
1,
'L'
);
$l = $this->lMargin;
foreach ($this->colTitles as $col => $txt) {
$this->SetXY($l, $this->tMargin);
$this->MultiCell(
$this->tablewidths[$col],
$this->FontSizePt,
$txt
);
$l += $this->tablewidths[$col];
$maxY = $maxY < $this->GetY() ? $this->GetY() : $maxY;
}
$this->SetXY($this->lMargin, $this->tMargin);
$this->SetFillColor(200, 200, 200);
$l = $this->lMargin;
foreach ($this->colTitles as $col => $txt) {
$this->SetXY($l, $this->tMargin);
$this->Cell(
$this->tablewidths[$col],
$maxY - $this->tMargin,
'',
1,
0,
'L',
1
);
$this->SetXY($l, $this->tMargin);
$this->MultiCell(
$this->tablewidths[$col],
$this->FontSizePt,
$txt,
0,
'C'
);
$l += $this->tablewidths[$col];
}
$this->SetFillColor(255, 255, 255);
// set headerset
$this->headerset[$this->page] = 1;
}
$this->dataY = $maxY;
$this->SetAutoPageBreak(true);
}
/**
* Generate table
*
* @param int $lineheight Height of line
*
* @return void
*/
public function morepagestable($lineheight = 8)
{
global $dbi;
// some things to set and 'remember'
$l = $this->lMargin;
$startheight = $h = $this->dataY;
$startpage = $currpage = $this->page;
// calculate the whole width
$fullwidth = 0;
foreach ($this->tablewidths as $width) {
$fullwidth += $width;
}
// Now let's start to write the table
$row = 0;
$tmpheight = [];
$maxpage = $this->page;
while ($data = $dbi->fetchRow($this->results)) {
$this->page = $currpage;
// write the horizontal borders
$this->Line($l, $h, $fullwidth + $l, $h);
// write the content and remember the height of the highest col
foreach ($data as $col => $txt) {
$this->page = $currpage;
$this->SetXY($l, $h);
if ($this->tablewidths[$col] > 0) {
$this->MultiCell(
$this->tablewidths[$col],
$lineheight,
$txt,
0,
$this->colAlign[$col]
);
$l += $this->tablewidths[$col];
}
if (! isset($tmpheight[$row . '-' . $this->page])) {
$tmpheight[$row . '-' . $this->page] = 0;
}
if ($tmpheight[$row . '-' . $this->page] < $this->GetY()) {
$tmpheight[$row . '-' . $this->page] = $this->GetY();
}
if ($this->page > $maxpage) {
$maxpage = $this->page;
}
unset($data[$col]);
}
// get the height we were in the last used page
$h = $tmpheight[$row . '-' . $maxpage];
// set the "pointer" to the left margin
$l = $this->lMargin;
// set the $currpage to the last page
$currpage = $maxpage;
unset($data[$row]);
$row++;
}
// draw the borders
// we start adding a horizontal line on the last page
$this->page = $maxpage;
$this->Line($l, $h, $fullwidth + $l, $h);
// now we start at the top of the document and walk down
for ($i = $startpage; $i <= $maxpage; $i++) {
$this->page = $i;
$l = $this->lMargin;
$t = $i == $startpage ? $startheight : $this->tMargin;
$lh = $i == $maxpage ? $h : $this->h - $this->bMargin;
$this->Line($l, $t, $l, $lh);
foreach ($this->tablewidths as $width) {
$l += $width;
$this->Line($l, $t, $l, $lh);
}
}
// set it to the last page, if not it'll cause some problems
$this->page = $maxpage;
}
/**
* Sets a set of attributes.
*
* @param array $attr array containing the attributes
*
* @return void
*/
public function setAttributes(array $attr = [])
{
foreach ($attr as $key => $val) {
$this->$key = $val;
}
}
/**
* Defines the top margin.
* The method can be called before creating the first page.
*
* @param float $topMargin the margin
*
* @return void
*/
public function setTopMargin($topMargin)
{
$this->tMargin = $topMargin;
}
/**
* Prints triggers
*
* @param string $db database name
* @param string $table table name
*
* @return void
*/
public function getTriggers($db, $table)
{
global $dbi;
$triggers = $dbi->getTriggers($db, $table);
if ($triggers === []) {
return; //prevents printing blank trigger list for any table
}
unset(
$this->tablewidths,
$this->colTitles,
$this->titleWidth,
$this->colFits,
$this->displayColumn,
$this->colAlign
);
/**
* Making table heading
* Keeping column width constant
*/
$this->colTitles[0] = __('Name');
$this->tablewidths[0] = 90;
$this->colTitles[1] = __('Time');
$this->tablewidths[1] = 80;
$this->colTitles[2] = __('Event');
$this->tablewidths[2] = 40;
$this->colTitles[3] = __('Definition');
$this->tablewidths[3] = 240;
for ($columns_cnt = 0; $columns_cnt < 4; $columns_cnt++) {
$this->colAlign[$columns_cnt] = 'L';
$this->displayColumn[$columns_cnt] = true;
}
// Starting to fill table with required info
$this->SetY($this->tMargin);
$this->AddPage();
$this->SetFont(PdfLib::PMA_PDF_FONT, '', 9);
$l = $this->lMargin;
$startheight = $h = $this->dataY;
$startpage = $currpage = $this->page;
// calculate the whole width
$fullwidth = 0;
foreach ($this->tablewidths as $width) {
$fullwidth += $width;
}
$row = 0;
$tmpheight = [];
$maxpage = $this->page;
$data = [];
foreach ($triggers as $trigger) {
$data[] = $trigger['name'];
$data[] = $trigger['action_timing'];
$data[] = $trigger['event_manipulation'];
$data[] = $trigger['definition'];
$this->page = $currpage;
// write the horizontal borders
$this->Line($l, $h, $fullwidth + $l, $h);
// write the content and remember the height of the highest col
foreach ($data as $col => $txt) {
$this->page = $currpage;
$this->SetXY($l, $h);
if ($this->tablewidths[$col] > 0) {
$this->MultiCell(
$this->tablewidths[$col],
$this->FontSizePt,
$txt,
0,
$this->colAlign[$col]
);
$l += $this->tablewidths[$col];
}
if (! isset($tmpheight[$row . '-' . $this->page])) {
$tmpheight[$row . '-' . $this->page] = 0;
}
if ($tmpheight[$row . '-' . $this->page] < $this->GetY()) {
$tmpheight[$row . '-' . $this->page] = $this->GetY();
}
if ($this->page <= $maxpage) {
continue;
}
$maxpage = $this->page;
}
// get the height we were in the last used page
$h = $tmpheight[$row . '-' . $maxpage];
// set the "pointer" to the left margin
$l = $this->lMargin;
// set the $currpage to the last page
$currpage = $maxpage;
unset($data);
$row++;
}
// draw the borders
// we start adding a horizontal line on the last page
$this->page = $maxpage;
$this->Line($l, $h, $fullwidth + $l, $h);
// now we start at the top of the document and walk down
for ($i = $startpage; $i <= $maxpage; $i++) {
$this->page = $i;
$l = $this->lMargin;
$t = $i == $startpage ? $startheight : $this->tMargin;
$lh = $i == $maxpage ? $h : $this->h - $this->bMargin;
$this->Line($l, $t, $l, $lh);
foreach ($this->tablewidths as $width) {
$l += $width;
$this->Line($l, $t, $l, $lh);
}
}
// set it to the last page, if not it'll cause some problems
$this->page = $maxpage;
}
/**
* Print $table's CREATE definition
*
* @param string $db the database name
* @param string $table the table name
* @param bool $do_relation whether to include relation comments
* @param bool $do_comments whether to include the pmadb-style column
* comments as comments in the structure;
* this is deprecated but the parameter is
* left here because /export calls
* PMA_exportStructure() also for other
* export types which use this parameter
* @param bool $do_mime whether to include mime comments
* @param bool $view whether we're handling a view
* @param array $aliases aliases of db/table/columns
*
* @return void
*/
public function getTableDef(
$db,
$table,
$do_relation,
$do_comments,
$do_mime,
$view = false,
array $aliases = []
) {
global $dbi;
// set $cfgRelation here, because there is a chance that it's modified
// since the class initialization
global $cfgRelation;
unset(
$this->tablewidths,
$this->colTitles,
$this->titleWidth,
$this->colFits,
$this->displayColumn,
$this->colAlign
);
/**
* Gets fields properties
*/
$dbi->selectDb($db);
/**
* All these three checks do_relation, do_comment and do_mime is
* not required. As presently all are set true by default.
* But when, methods to take user input will be developed,
* it will be of use
*/
// Check if we can use Relations
if ($do_relation) {
// Find which tables are related with the current one and write it in
// an array
$res_rel = $this->relation->getForeigners($db, $table);
$have_rel = ! empty($res_rel);
} else {
$have_rel = false;
}
//column count and table heading
$this->colTitles[0] = __('Column');
$this->tablewidths[0] = 90;
$this->colTitles[1] = __('Type');
$this->tablewidths[1] = 80;
$this->colTitles[2] = __('Null');
$this->tablewidths[2] = 40;
$this->colTitles[3] = __('Default');
$this->tablewidths[3] = 120;
for ($columns_cnt = 0; $columns_cnt < 4; $columns_cnt++) {
$this->colAlign[$columns_cnt] = 'L';
$this->displayColumn[$columns_cnt] = true;
}
if ($do_relation && $have_rel) {
$this->colTitles[$columns_cnt] = __('Links to');
$this->displayColumn[$columns_cnt] = true;
$this->colAlign[$columns_cnt] = 'L';
$this->tablewidths[$columns_cnt] = 120;
$columns_cnt++;
}
if ($do_comments /*&& $cfgRelation['commwork']*/) {
$this->colTitles[$columns_cnt] = __('Comments');
$this->displayColumn[$columns_cnt] = true;
$this->colAlign[$columns_cnt] = 'L';
$this->tablewidths[$columns_cnt] = 120;
$columns_cnt++;
}
if ($do_mime && $cfgRelation['mimework']) {
$this->colTitles[$columns_cnt] = __('Media type');
$this->displayColumn[$columns_cnt] = true;
$this->colAlign[$columns_cnt] = 'L';
$this->tablewidths[$columns_cnt] = 120;
$columns_cnt++;
}
// Starting to fill table with required info
$this->SetY($this->tMargin);
$this->AddPage();
$this->SetFont(PdfLib::PMA_PDF_FONT, '', 9);
// Now let's start to write the table structure
if ($do_comments) {
$comments = $this->relation->getComments($db, $table);
}
if ($do_mime && $cfgRelation['mimework']) {
$mime_map = $this->transformations->getMime($db, $table, true);
}
$columns = $dbi->getColumns($db, $table);
// some things to set and 'remember'
$l = $this->lMargin;
$startheight = $h = $this->dataY;
$startpage = $currpage = $this->page;
// calculate the whole width
$fullwidth = 0;
foreach ($this->tablewidths as $width) {
$fullwidth += $width;
}
$row = 0;
$tmpheight = [];
$maxpage = $this->page;
$data = [];
// fun begin
foreach ($columns as $column) {
$extracted_columnspec
= Util::extractColumnSpec($column['Type']);
$type = $extracted_columnspec['print_type'];
if (empty($type)) {
$type = ' ';
}
if (! isset($column['Default'])) {
if ($column['Null'] !== 'NO') {
$column['Default'] = 'NULL';
}
}
$data[] = $column['Field'];
$data[] = $type;
$data[] = $column['Null'] == '' || $column['Null'] === 'NO'
? 'No'
: 'Yes';
$data[] = $column['Default'] ?? '';
$field_name = $column['Field'];
if ($do_relation && $have_rel) {
$data[] = isset($res_rel[$field_name])
? $res_rel[$field_name]['foreign_table']
. ' (' . $res_rel[$field_name]['foreign_field']
. ')'
: '';
}
if ($do_comments) {
$data[] = $comments[$field_name] ?? '';
}
if ($do_mime) {
$data[] = isset($mime_map[$field_name])
? $mime_map[$field_name]['mimetype']
: '';
}
$this->page = $currpage;
// write the horizontal borders
$this->Line($l, $h, $fullwidth + $l, $h);
// write the content and remember the height of the highest col
foreach ($data as $col => $txt) {
$this->page = $currpage;
$this->SetXY($l, $h);
if ($this->tablewidths[$col] > 0) {
$this->MultiCell(
$this->tablewidths[$col],
$this->FontSizePt,
$txt,
0,
$this->colAlign[$col]
);
$l += $this->tablewidths[$col];
}
if (! isset($tmpheight[$row . '-' . $this->page])) {
$tmpheight[$row . '-' . $this->page] = 0;
}
if ($tmpheight[$row . '-' . $this->page] < $this->GetY()) {
$tmpheight[$row . '-' . $this->page] = $this->GetY();
}
if ($this->page <= $maxpage) {
continue;
}
$maxpage = $this->page;
}
// get the height we were in the last used page
$h = $tmpheight[$row . '-' . $maxpage];
// set the "pointer" to the left margin
$l = $this->lMargin;
// set the $currpage to the last page
$currpage = $maxpage;
unset($data);
$row++;
}
// draw the borders
// we start adding a horizontal line on the last page
$this->page = $maxpage;
$this->Line($l, $h, $fullwidth + $l, $h);
// now we start at the top of the document and walk down
for ($i = $startpage; $i <= $maxpage; $i++) {
$this->page = $i;
$l = $this->lMargin;
$t = $i == $startpage ? $startheight : $this->tMargin;
$lh = $i == $maxpage ? $h : $this->h - $this->bMargin;
$this->Line($l, $t, $l, $lh);
foreach ($this->tablewidths as $width) {
$l += $width;
$this->Line($l, $t, $l, $lh);
}
}
// set it to the last page, if not it'll cause some problems
$this->page = $maxpage;
}
/**
* MySQL report
*
* @param string $query Query to execute
*
* @return void
*/
public function mysqlReport($query)
{
global $dbi;
unset(
$this->tablewidths,
$this->colTitles,
$this->titleWidth,
$this->colFits,
$this->displayColumn,
$this->colAlign
);
/**
* Pass 1 for column widths
*/
$this->results = $dbi->query(
$query,
DatabaseInterface::CONNECT_USER,
DatabaseInterface::QUERY_UNBUFFERED
);
$this->numFields = $dbi->numFields($this->results);
$this->fields = $dbi->getFieldsMeta($this->results);
// sColWidth = starting col width (an average size width)
$availableWidth = $this->w - $this->lMargin - $this->rMargin;
$this->sColWidth = $availableWidth / $this->numFields;
$totalTitleWidth = 0;
// loop through results header and set initial
// col widths/ titles/ alignment
// if a col title is less than the starting col width,
// reduce that column size
$colFits = [];
$titleWidth = [];
for ($i = 0; $i < $this->numFields; $i++) {
$col_as = $this->fields[$i]->name;
$db = $this->currentDb;
$table = $this->currentTable;
if (! empty($this->aliases[$db]['tables'][$table]['columns'][$col_as])) {
$col_as = $this->aliases[$db]['tables'][$table]['columns'][$col_as];
}
$stringWidth = $this->GetStringWidth($col_as) + 6;
// save the real title's width
$titleWidth[$i] = $stringWidth;
$totalTitleWidth += $stringWidth;
// set any column titles less than the start width to
// the column title width
if ($stringWidth < $this->sColWidth) {
$colFits[$i] = $stringWidth;
}
$this->colTitles[$i] = $col_as;
$this->displayColumn[$i] = true;
switch ($this->fields[$i]->type) {
case 'int':
$this->colAlign[$i] = 'R';
break;
case 'blob':
case 'tinyblob':
case 'mediumblob':
case 'longblob':
/**
* @todo do not deactivate completely the display
* but show the field's name and [BLOB]
*/
if (stripos($this->fields[$i]->flags, 'BINARY') !== false) {
$this->displayColumn[$i] = false;
unset($this->colTitles[$i]);
}
$this->colAlign[$i] = 'L';
break;
default:
$this->colAlign[$i] = 'L';
}
}
// title width verification
if ($totalTitleWidth > $availableWidth) {
$adjustingMode = true;
} else {
$adjustingMode = false;
// we have enough space for all the titles at their
// original width so use the true title's width
foreach ($titleWidth as $key => $val) {
$colFits[$key] = $val;
}
}
// loop through the data; any column whose contents
// is greater than the column size is resized
/**
* @todo force here a LIMIT to avoid reading all rows
*/
while ($row = $dbi->fetchRow($this->results)) {
foreach ($colFits as $key => $val) {
$stringWidth = $this->GetStringWidth($row[$key]) + 6;
if ($adjustingMode && ($stringWidth > $this->sColWidth)) {
// any column whose data's width is bigger than
// the start width is now discarded
unset($colFits[$key]);
} else {
// if data's width is bigger than the current column width,
// enlarge the column (but avoid enlarging it if the
// data's width is very big)
if ($stringWidth > $val
&& $stringWidth < $this->sColWidth * 3
) {
$colFits[$key] = $stringWidth;
}
}
}
}
$totAlreadyFitted = 0;
foreach ($colFits as $key => $val) {
// set fitted columns to smallest size
$this->tablewidths[$key] = $val;
// to work out how much (if any) space has been freed up
$totAlreadyFitted += $val;
}
if ($adjustingMode) {
$surplus = (count($colFits) * $this->sColWidth) - $totAlreadyFitted;
$surplusToAdd = $surplus / ($this->numFields - count($colFits));
} else {
$surplusToAdd = 0;
}
for ($i = 0; $i < $this->numFields; $i++) {
if (! array_key_exists($i, $colFits)) {
$this->tablewidths[$i] = $this->sColWidth + $surplusToAdd;
}
if ($this->displayColumn[$i] != false) {
continue;
}
$this->tablewidths[$i] = 0;
}
ksort($this->tablewidths);
$dbi->freeResult($this->results);
// Pass 2
$this->results = $dbi->query(
$query,
DatabaseInterface::CONNECT_USER,
DatabaseInterface::QUERY_UNBUFFERED
);
$this->SetY($this->tMargin);
$this->AddPage();
$this->SetFont(PdfLib::PMA_PDF_FONT, '', 9);
$this->morepagestable($this->FontSizePt);
$dbi->freeResult($this->results);
}
}
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