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<?php
/**
* PDF schema handling
*/
declare(strict_types=1);
namespace PhpMyAdmin\Plugins\Schema\Pdf;
use PhpMyAdmin\ConfigStorage\Relation;
use PhpMyAdmin\Pdf as PdfLib;
use PhpMyAdmin\Util;
use function __;
use function count;
use function getcwd;
use function max;
use function mb_ord;
use function str_replace;
use function strlen;
use function ucfirst;
// phpcs:disable PSR1.Files.SideEffects
/**
* block attempts to directly run this script
*/
if (getcwd() == __DIR__) {
die('Attack stopped');
}
// phpcs:enable
/**
* Extends the "TCPDF" class and helps
* in developing the structure of PDF Schema Export
*
* @see TCPDF
*/
class Pdf extends PdfLib
{
/** @var int|float */
public $xMin = 0;
/** @var int|float */
public $yMin = 0;
/** @var int|float */
public $leftMargin = 10;
/** @var int|float */
public $topMargin = 10;
/** @var int|float */
public $scale = 1;
/** @var array */
public $customLinks = [];
/** @var array */
public $widths = [];
/** @var float */
public $cMargin = 0;
/** @var string */
private $ff = PdfLib::PMA_PDF_FONT;
/** @var bool */
private $offline = false;
/** @var int */
private $pageNumber;
/** @var bool */
private $withDoc;
/** @var string */
private $db;
/** @var Relation */
private $relation;
/**
* Constructs PDF for schema export.
*
* @param string $orientation page orientation
* @param string $unit unit
* @param string $paper the format used for pages
* @param int $pageNumber schema page number that is being exported
* @param bool $withDoc with document dictionary
* @param string $db the database name
*/
public function __construct(
$orientation,
$unit,
$paper,
$pageNumber,
$withDoc,
$db
) {
global $dbi;
parent::__construct($orientation, $unit, $paper);
$this->pageNumber = $pageNumber;
$this->withDoc = $withDoc;
$this->db = $db;
$this->relation = new Relation($dbi);
}
/**
* Sets the value for margins
*
* @param float $c_margin margin
*/
public function setCMargin($c_margin): void
{
$this->cMargin = $c_margin;
}
/**
* Sets the scaling factor, defines minimum coordinates and margins
*
* @param float|int $scale The scaling factor
* @param float|int $xMin The minimum X coordinate
* @param float|int $yMin The minimum Y coordinate
* @param float|int $leftMargin The left margin
* @param float|int $topMargin The top margin
*/
public function setScale(
$scale = 1,
$xMin = 0,
$yMin = 0,
$leftMargin = -1,
$topMargin = -1
): void {
$this->scale = $scale;
$this->xMin = $xMin;
$this->yMin = $yMin;
if ($this->leftMargin != -1) {
$this->leftMargin = $leftMargin;
}
if ($this->topMargin == -1) {
return;
}
$this->topMargin = $topMargin;
}
/**
* Outputs a scaled cell
*
* @see TCPDF::Cell()
*
* @param float|int $w The cell width
* @param float|int $h The cell height
* @param string $txt The text to output
* @param mixed $border Whether to add borders or not
* @param int $ln Where to put the cursor once the output is done
* @param string $align Align mode
* @param bool $fill Whether to fill the cell with a color or not
* @param string $link Link
*/
public function cellScale(
$w,
$h = 0,
$txt = '',
$border = 0,
$ln = 0,
$align = '',
bool $fill = false,
$link = ''
): void {
$h /= $this->scale;
$w /= $this->scale;
$this->Cell($w, $h, $txt, $border, $ln, $align, $fill, $link);
}
/**
* Draws a scaled line
*
* @see TCPDF::Line()
*
* @param float $x1 The horizontal position of the starting point
* @param float $y1 The vertical position of the starting point
* @param float $x2 The horizontal position of the ending point
* @param float $y2 The vertical position of the ending point
*/
public function lineScale($x1, $y1, $x2, $y2): void
{
$x1 = ($x1 - $this->xMin) / $this->scale + $this->leftMargin;
$y1 = ($y1 - $this->yMin) / $this->scale + $this->topMargin;
$x2 = ($x2 - $this->xMin) / $this->scale + $this->leftMargin;
$y2 = ($y2 - $this->yMin) / $this->scale + $this->topMargin;
$this->Line($x1, $y1, $x2, $y2);
}
/**
* Sets x and y scaled positions
*
* @see TCPDF::SetXY()
*
* @param float $x The x position
* @param float $y The y position
*/
public function setXyScale($x, $y): void
{
$x = ($x - $this->xMin) / $this->scale + $this->leftMargin;
$y = ($y - $this->yMin) / $this->scale + $this->topMargin;
$this->SetXY($x, $y);
}
/**
* Sets the X scaled positions
*
* @see TCPDF::SetX()
*
* @param float $x The x position
*/
public function setXScale($x): void
{
$x = ($x - $this->xMin) / $this->scale + $this->leftMargin;
$this->SetX($x);
}
/**
* Sets the scaled font size
*
* @see TCPDF::SetFontSize()
*
* @param float $size The font size (in points)
*/
public function setFontSizeScale($size): void
{
// Set font size in points
$size /= $this->scale;
$this->SetFontSize($size);
}
/**
* Sets the scaled line width
*
* @see TCPDF::SetLineWidth()
*
* @param float $width The line width
*/
public function setLineWidthScale($width): void
{
$width /= $this->scale;
$this->SetLineWidth($width);
}
/**
* This method is used to render the page header.
*
* @see TCPDF::Header()
*/
// phpcs:ignore PSR1.Methods.CamelCapsMethodName.NotCamelCaps
public function Header(): void
{
global $dbi;
// We only show this if we find something in the new pdf_pages table
// This function must be named "Header" to work with the TCPDF library
if (! $this->withDoc) {
return;
}
$pdfFeature = $this->relation->getRelationParameters()->pdfFeature;
if ($this->offline || $this->pageNumber == -1 || $pdfFeature === null) {
$pg_name = __('PDF export page');
} else {
$test_query = 'SELECT * FROM '
. Util::backquote($pdfFeature->database) . '.'
. Util::backquote($pdfFeature->pdfPages)
. ' WHERE db_name = \'' . $dbi->escapeString($this->db)
. '\' AND page_nr = \'' . $this->pageNumber . '\'';
$test_rs = $dbi->queryAsControlUser($test_query);
$pageDesc = (string) $test_rs->fetchValue('page_descr');
$pg_name = ucfirst($pageDesc);
}
$this->SetFont($this->ff, 'B', 14);
$this->Cell(0, 6, $pg_name, 'B', 1, 'C');
$this->SetFont($this->ff, '');
$this->Ln();
}
/**
* This function must be named "Footer" to work with the TCPDF library
*
* @see PDF::Footer()
*/
// phpcs:ignore PSR1.Methods.CamelCapsMethodName.NotCamelCaps
public function Footer(): void
{
if (! $this->withDoc) {
return;
}
parent::Footer();
}
/**
* Sets widths
*
* @param array $w array of widths
*/
public function setWidths(array $w): void
{
// column widths
$this->widths = $w;
}
/**
* Generates table row.
*
* @param array $data Data for table
* @param array $links Links for table cells
*/
public function row(array $data, array $links): void
{
// line height
$nb = 0;
$data_cnt = count($data);
for ($i = 0; $i < $data_cnt; $i++) {
$nb = max($nb, $this->numLines($this->widths[$i], $data[$i]));
}
// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
$il = $this->FontSize;
$h = ($il + 1) * $nb;
// page break if necessary
$this->checkPageBreak($h);
// draw the cells
$data_cnt = count($data);
for ($i = 0; $i < $data_cnt; $i++) {
$w = $this->widths[$i];
// save current position
$x = $this->GetX();
$y = $this->GetY();
// draw the border
$this->Rect($x, $y, $w, $h);
if (isset($links[$i])) {
$this->Link($x, $y, $w, $h, $links[$i]);
}
// print text
$this->MultiCell($w, $il + 1, $data[$i], 0, 'L');
// go to right side
$this->SetXY($x + $w, $y);
}
// go to line
$this->Ln($h);
}
/**
* Compute number of lines used by a multicell of width w
*
* @param int $w width
* @param string $txt text
*
* @return int
*/
public function numLines($w, $txt)
{
// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
$cw = &$this->CurrentFont['cw'];
if ($w == 0) {
$w = $this->w - $this->rMargin - $this->x;
}
// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
$wmax = ($w - 2 * $this->cMargin) * 1000 / $this->FontSize;
$s = str_replace("\r", '', $txt);
$nb = strlen($s);
if ($nb > 0 && $s[$nb - 1] == "\n") {
$nb--;
}
$sep = -1;
$i = 0;
$j = 0;
$l = 0;
$nl = 1;
while ($i < $nb) {
$c = $s[$i];
if ($c == "\n") {
$i++;
$sep = -1;
$j = $i;
$l = 0;
$nl++;
continue;
}
if ($c === ' ') {
$sep = $i;
}
$l += $cw[mb_ord($c)] ?? 0;
if ($l > $wmax) {
if ($sep == -1) {
if ($i == $j) {
$i++;
}
} else {
$i = $sep + 1;
}
$sep = -1;
$j = $i;
$l = 0;
$nl++;
} else {
$i++;
}
}
return $nl;
}
/**
* Set whether the document is generated from client side DB
*
* @param bool $value whether offline
*/
public function setOffline($value): void
{
$this->offline = $value;
}
}