11 files changed, 438 insertions, 0 deletions
diff --git a/vendor/iio/libmergepdf/src/Driver/DefaultDriver.php b/vendor/iio/libmergepdf/src/Driver/DefaultDriver.php
new file mode 100644
index 0000000..9ad6f73
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Driver/DefaultDriver.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Driver;
+
+use iio\libmergepdf\Source\SourceInterface;
+
+final class DefaultDriver implements DriverInterface
+{
+    /**
+     * @var DriverInterface
+     */
+    private $wrapped;
+
+    public function __construct(DriverInterface $wrapped = null)
+    {
+        $this->wrapped = $wrapped ?: new Fpdi2Driver;
+    }
+
+    public function merge(SourceInterface ...$sources): string
+    {
+        return $this->wrapped->merge(...$sources);
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/Driver/DriverInterface.php b/vendor/iio/libmergepdf/src/Driver/DriverInterface.php
new file mode 100644
index 0000000..39cca1e
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Driver/DriverInterface.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace iio\libmergepdf\Driver;
+
+use iio\libmergepdf\Source\SourceInterface;
+
+interface DriverInterface
+{
+    /**
+     * Merge multiple sources
+     */
+    public function merge(SourceInterface ...$sources): string;
+}
diff --git a/vendor/iio/libmergepdf/src/Driver/Fpdi2Driver.php b/vendor/iio/libmergepdf/src/Driver/Fpdi2Driver.php
new file mode 100644
index 0000000..e56d8b1
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Driver/Fpdi2Driver.php
@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Driver;
+
+use iio\libmergepdf\Exception;
+use iio\libmergepdf\Source\SourceInterface;
+use setasign\Fpdi\Fpdi as FpdiFpdf;
+use setasign\Fpdi\Tcpdf\Fpdi as FpdiTcpdf;
+use setasign\Fpdi\PdfParser\StreamReader;
+
+final class Fpdi2Driver implements DriverInterface
+{
+    /**
+     * @var FpdiFpdf|FpdiTcpdf
+     */
+    private $fpdi;
+
+    /**
+     * @param FpdiFpdf|FpdiTcpdf $fpdi
+     */
+    public function __construct($fpdi = null)
+    {
+        // Tcpdf generates warnings due to argument ordering with php 8
+        // suppressing errors is a dirty hack until tcpdf is patched
+        $this->fpdi = $fpdi ?: @new FpdiTcpdf;
+
+        if (!($this->fpdi instanceof FpdiFpdf) && !($this->fpdi instanceof FpdiTcpdf)) {
+            throw new \InvalidArgumentException('Constructor argument must be an FPDI instance.');
+        }
+    }
+
+    public function merge(SourceInterface ...$sources): string
+    {
+        $sourceName = '';
+
+        try {
+            $fpdi = clone $this->fpdi;
+
+            foreach ($sources as $source) {
+                $sourceName = $source->getName();
+                $pageCount = $fpdi->setSourceFile(StreamReader::createByString($source->getContents()));
+                $pageNumbers = $source->getPages()->getPageNumbers() ?: range(1, $pageCount);
+
+                foreach ($pageNumbers as $pageNr) {
+                    $template = $fpdi->importPage($pageNr);
+                    $size = $fpdi->getTemplateSize($template);
+                    $fpdi->SetPrintHeader(false);
+                    $fpdi->SetPrintFooter(false);
+                    $fpdi->AddPage(
+                        $size['width'] > $size['height'] ? 'L' : 'P',
+                        [$size['width'], $size['height']]
+                    );
+                    $fpdi->useTemplate($template);
+                }
+            }
+
+            return $fpdi->Output('', 'S');
+        } catch (\Exception $e) {
+            throw new Exception("'{$e->getMessage()}' in '$sourceName'", 0, $e);
+        }
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/Driver/TcpdiDriver.php b/vendor/iio/libmergepdf/src/Driver/TcpdiDriver.php
new file mode 100644
index 0000000..fa0ddc8
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Driver/TcpdiDriver.php
@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Driver;
+
+use iio\libmergepdf\Exception;
+use iio\libmergepdf\Source\SourceInterface;
+
+final class TcpdiDriver implements DriverInterface
+{
+    /**
+     * @var \TCPDI
+     */
+    private $tcpdi;
+
+    public function __construct(\TCPDI $tcpdi = null)
+    {
+        $this->tcpdi = $tcpdi ?: new \TCPDI;
+    }
+
+    public function merge(SourceInterface ...$sources): string
+    {
+        $sourceName = '';
+
+        try {
+            $tcpdi = clone $this->tcpdi;
+
+            foreach ($sources as $source) {
+                $sourceName = $source->getName();
+                $pageCount = $tcpdi->setSourceData($source->getContents());
+                $pageNumbers = $source->getPages()->getPageNumbers() ?: range(1, $pageCount);
+
+                foreach ($pageNumbers as $pageNr) {
+                    $template = $tcpdi->importPage($pageNr);
+                    $size = $tcpdi->getTemplateSize($template);
+                    $tcpdi->SetPrintHeader(false);
+                    $tcpdi->SetPrintFooter(false);
+                    $tcpdi->AddPage(
+                        $size['w'] > $size['h'] ? 'L' : 'P',
+                        [$size['w'], $size['h']]
+                    );
+                    $tcpdi->useTemplate($template);
+                }
+            }
+
+            return $tcpdi->Output('', 'S');
+        } catch (\Exception $e) {
+            throw new Exception("'{$e->getMessage()}' in '$sourceName'", 0, $e);
+        }
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/Exception.php b/vendor/iio/libmergepdf/src/Exception.php
new file mode 100644
index 0000000..69b3208
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Exception.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace iio\libmergepdf;
+
+final class Exception extends \Exception
+{
+}
diff --git a/vendor/iio/libmergepdf/src/Merger.php b/vendor/iio/libmergepdf/src/Merger.php
new file mode 100644
index 0000000..57725c9
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Merger.php
@@ -0,0 +1,79 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf;
+
+use iio\libmergepdf\Driver\DriverInterface;
+use iio\libmergepdf\Driver\DefaultDriver;
+use iio\libmergepdf\Source\SourceInterface;
+use iio\libmergepdf\Source\FileSource;
+use iio\libmergepdf\Source\RawSource;
+
+/**
+ * Merge existing pdfs into one
+ *
+ * Note that your PDFs are merged in the order that you add them
+ */
+final class Merger
+{
+    /**
+     * @var SourceInterface[] List of pdf sources to merge
+     */
+    private $sources = [];
+
+    /**
+     * @var DriverInterface
+     */
+    private $driver;
+
+    public function __construct(DriverInterface $driver = null)
+    {
+        $this->driver = $driver ?: new DefaultDriver;
+    }
+
+    /**
+     * Add raw PDF from string
+     */
+    public function addRaw(string $content, PagesInterface $pages = null): void
+    {
+        $this->sources[] = new RawSource($content, $pages);
+    }
+
+    /**
+     * Add PDF from file
+     */
+    public function addFile(string $filename, PagesInterface $pages = null): void
+    {
+        $this->sources[] = new FileSource($filename, $pages);
+    }
+
+    /**
+     * Add files using iterator
+     *
+     * @param iterable<string> $iterator Set of filenames to add
+     * @param PagesInterface $pages Optional pages constraint used for every added pdf
+     */
+    public function addIterator(iterable $iterator, PagesInterface $pages = null): void
+    {
+        foreach ($iterator as $filename) {
+            $this->addFile($filename, $pages);
+        }
+    }
+
+    /**
+     * Merges loaded PDFs
+     */
+    public function merge(): string
+    {
+        return $this->driver->merge(...$this->sources);
+    }
+
+    /**
+     * Reset internal state
+     */
+    public function reset(): void
+    {
+        $this->sources = [];
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/Pages.php b/vendor/iio/libmergepdf/src/Pages.php
new file mode 100644
index 0000000..7675315
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Pages.php
@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf;
+
+/**
+ * Parse page numbers from string
+ */
+final class Pages implements PagesInterface
+{
+    /**
+     * @var int[] Added integer page numbers
+     */
+    private $pages = [];
+
+    /**
+     * Parse page numbers from expression string
+     *
+     * Pages should be formatted as 1,3,6 or 12-16 or combined. Note that pages
+     * are merged in the order that you provide them. If you put pages 12-14
+     * before 1-5 then 12-14 will be placed first.
+     */
+    public function __construct(string $expressionString = '')
+    {
+        $expressions = explode(
+            ',',
+            str_replace(' ', '', $expressionString)
+        );
+
+        foreach ($expressions as $expr) {
+            if (empty($expr)) {
+                continue;
+            }
+            if (ctype_digit($expr)) {
+                $this->addPage((int)$expr);
+                continue;
+            }
+            if (preg_match("/^(\d+)-(\d+)/", $expr, $matches)) {
+                $this->addRange((int)$matches[1], (int)$matches[2]);
+                continue;
+            }
+            throw new Exception("Invalid page number(s) for expression '$expr'");
+        }
+    }
+
+    /**
+     * Add a single page
+     */
+    public function addPage(int $page): void
+    {
+        $this->pages[] = $page;
+    }
+
+    /**
+     * Add a range of pages
+     */
+    public function addRange(int $start, int $end): void
+    {
+        $this->pages = array_merge($this->pages, range($start, $end));
+    }
+
+    public function getPageNumbers(): array
+    {
+        return $this->pages;
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/PagesInterface.php b/vendor/iio/libmergepdf/src/PagesInterface.php
new file mode 100644
index 0000000..e85d3c8
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/PagesInterface.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace iio\libmergepdf;
+
+interface PagesInterface
+{
+    /**
+     * @return int[]
+     */
+    public function getPageNumbers(): array;
+}
diff --git a/vendor/iio/libmergepdf/src/Source/FileSource.php b/vendor/iio/libmergepdf/src/Source/FileSource.php
new file mode 100644
index 0000000..2802d80
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Source/FileSource.php
@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Source;
+
+use iio\libmergepdf\PagesInterface;
+use iio\libmergepdf\Pages;
+use iio\libmergepdf\Exception;
+
+/**
+ * Pdf source from file
+ */
+final class FileSource implements SourceInterface
+{
+    /**
+     * @var string
+     */
+    private $filename;
+
+    /**
+     * @var PagesInterface
+     */
+    private $pages;
+
+    public function __construct(string $filename, PagesInterface $pages = null)
+    {
+        if (!is_file($filename) || !is_readable($filename)) {
+            throw new Exception("Invalid file '$filename'");
+        }
+
+        $this->filename = $filename;
+        $this->pages = $pages ?: new Pages;
+    }
+
+    public function getName(): string
+    {
+        return $this->filename;
+    }
+
+    public function getContents(): string
+    {
+        return (string)file_get_contents($this->filename);
+    }
+
+    public function getPages(): PagesInterface
+    {
+        return $this->pages;
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/Source/RawSource.php b/vendor/iio/libmergepdf/src/Source/RawSource.php
new file mode 100644
index 0000000..7966918
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Source/RawSource.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Source;
+
+use iio\libmergepdf\PagesInterface;
+use iio\libmergepdf\Pages;
+
+/**
+ * Pdf source from raw string
+ */
+final class RawSource implements SourceInterface
+{
+    /**
+     * @var string
+     */
+    private $contents;
+
+    /**
+     * @var PagesInterface
+     */
+    private $pages;
+
+    public function __construct(string $contents, PagesInterface $pages = null)
+    {
+        $this->contents = $contents;
+        $this->pages = $pages ?: new Pages;
+    }
+
+    public function getName(): string
+    {
+        return "raw-content";
+    }
+
+    public function getContents(): string
+    {
+        return $this->contents;
+    }
+
+    public function getPages(): PagesInterface
+    {
+        return $this->pages;
+    }
+}
diff --git a/vendor/iio/libmergepdf/src/Source/SourceInterface.php b/vendor/iio/libmergepdf/src/Source/SourceInterface.php
new file mode 100644
index 0000000..4ce9c3c
--- /dev/null
+++ b/vendor/iio/libmergepdf/src/Source/SourceInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace iio\libmergepdf\Source;
+
+use iio\libmergepdf\PagesInterface;
+
+interface SourceInterface
+{
+    /**
+     * Get name of file or source
+     */
+    public function getName(): string;
+
+    /**
+     * Get pdf content
+     */
+    public function getContents(): string;
+
+    /**
+     * Get pages to fetch from source
+     */
+    public function getPages(): PagesInterface;
+}