snapshot of https://github.com/espocrm/espocrm.git (master, 2026-09-18; blobs > 131072B omitted)

application/Espo/Tools/Pdf/Dompdf/Contents.php

@@ -0,0 +1,73 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Pdf\Dompdf;
+
+use Espo\Tools\Pdf\Contents as ContentsInterface;
+
+use GuzzleHttp\Psr7\Stream;
+use Psr\Http\Message\StreamInterface;
+use Dompdf\Dompdf;
+
+use RuntimeException;
+
+class Contents implements ContentsInterface
+{
+    private ?string $string = null;
+
+    public function __construct(private Dompdf $pdf) {}
+
+    public function getStream(): StreamInterface
+    {
+        $resource = fopen('php://temp', 'r+');
+
+        if ($resource === false) {
+            throw new RuntimeException("Could not open temp.");
+        }
+
+        fwrite($resource, $this->getString());
+        rewind($resource);
+
+        return new Stream($resource);
+    }
+
+    public function getString(): string
+    {
+        if ($this->string === null) {
+            $this->string = $this->pdf->output();
+        }
+
+        return $this->string ?? '';
+    }
+
+    public function getLength(): int
+    {
+        return strlen($this->getString());
+    }
+}

application/Espo/Tools/Pdf/Dompdf/DompdfInitializer.php

@@ -0,0 +1,203 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Pdf\Dompdf;
+
+use Dompdf\Dompdf;
+use Dompdf\FontMetrics;
+use Dompdf\Options;
+use Espo\Core\Utils\Config;
+use Espo\Core\Utils\File\Manager as FileManager;
+use Espo\Core\Utils\Metadata;
+use Espo\Core\Utils\Module;
+use Espo\Tools\Pdf\Params;
+use Espo\Tools\Pdf\Template;
+use RuntimeException;
+
+class DompdfInitializer
+{
+    private string $defaultFontFace = 'DejaVu Sans';
+    private string $cacheDir = 'data/cache/application/dompdf';
+    private string $pdfaCacheDir = 'data/cache/application/pdfa-dompdf';
+
+    private const PT = 2.83465;
+
+    /** @var array<string, string> */
+    private array $standardFontMapping = [
+        'courier' => 'DejaVu Sans Mono',
+        'fixed' => 'DejaVu Sans Mono',
+        'helvetica' => 'DejaVu Sans',
+        'monospace' => 'DejaVu Sans Mono',
+        'sans-serif' => 'DejaVu Sans',
+        'serif' => 'DejaVu Serif',
+        'times' => 'DejaVu Serif',
+        'times-roman' => 'DejaVu Serif',
+    ];
+
+    public function __construct(
+        private Config $config,
+        private Metadata $metadata,
+        private FileManager $fileManager,
+        private Module $module,
+    ) {}
+
+    public function initialize(Template $template, Params $params): Dompdf
+    {
+        $options = new Options();
+
+        $options
+            ->setIsPdfAEnabled($params->isPdfA())
+            ->setDefaultFont($this->getFontFace($template))
+            ->setIsJavascriptEnabled(false);
+
+        $dir = $params->isPdfA() ? $this->pdfaCacheDir : $this->cacheDir;
+
+        $options->setFontDir($dir);
+        $options->setFontCache($dir);
+
+        if (!$this->fileManager->isDir($dir)) {
+            $this->fileManager->mkdir($dir);
+        }
+
+        $this->setupFontOptions($options);
+
+        $pdf = new Dompdf($options);
+
+        $this->mapFonts($pdf, $params->isPdfA(), $dir);
+
+        $size = $template->getPageFormat() === Template::PAGE_FORMAT_CUSTOM ?
+            [0.0, 0.0, $template->getPageWidth() * self::PT, $template->getPageHeight() * self::PT] :
+            $template->getPageFormat();
+
+        $orientation = $template->getPageOrientation() === Template::PAGE_ORIENTATION_PORTRAIT ?
+            'portrait' :
+            'landscape';
+
+        $pdf->setPaper($size, $orientation);
+
+        return $pdf;
+    }
+
+    private function getFontFace(Template $template): string
+    {
+        return
+            $template->getFontFace() ??
+            $this->config->get('pdfFontFace') ??
+            $this->defaultFontFace;
+    }
+
+    private function mapFonts(Dompdf $pdf, bool $isPdfA, string $dir): void
+    {
+        $file = $dir . '/' . FontMetrics::USER_FONTS_FILE;
+
+        if ($this->fileManager->exists($file)) {
+            return;
+        }
+
+        // When fonts are included in PDF/A, we need to map standard fonts to open source analogues.
+        // Also need to support popular fonts specified in CSS styles.
+        $fontMetrics = $pdf->getFontMetrics();
+
+        if ($isPdfA) {
+            foreach ($this->standardFontMapping as $key => $value) {
+                $fontMetrics->setFontFamily($key, $fontMetrics->getFamily($value));
+            }
+
+            return;
+        }
+
+        $this->setupAdditionalFonts($pdf);
+
+        /** @var string[] $fontList */
+        $fontList = $this->metadata->get('app.pdfEngines.Dompdf.fontFaceList') ?? [];
+        $fontList = array_map(fn ($it) => strtolower($it), $fontList);
+
+        foreach ($this->standardFontMapping as $key => $value) {
+            if (in_array(strtolower($key), $fontList)) {
+                continue;
+            }
+
+            $fontMetrics->setFontFamily($key, $fontMetrics->getFamily($value));
+        }
+    }
+
+    private function setupFontOptions(Options $options): void
+    {
+        $dirs = ['application/Espo/Resources/fonts'];
+
+        foreach ($this->module->getOrderedList() as $module) {
+            $dirs[] = $this->module->getModulePath($module) . '/Resources/fonts';
+        }
+
+        $dirs[] = 'custom/Espo/Custom/Resources/fonts';
+
+        $dirs = array_filter($dirs, fn ($dir) => $this->fileManager->isDir($dir));
+        $dirs = array_values($dirs);
+
+        $options->setChroot($dirs);
+    }
+
+    private function setupAdditionalFonts(Dompdf $pdf): void
+    {
+        /** @var array{family?: string, style?: string, weight?: string, source?: string}[] $fonts */
+        $fonts = $this->metadata->get("app.pdfEngines.Dompdf.additionalParams.fonts") ?? [];
+
+        foreach ($fonts as $defs) {
+            $family = $defs['family'] ?? throw new RuntimeException("No font 'family'.");
+            $style = $defs['style'] ?? throw new RuntimeException("No font 'style'.");
+            $weight = $defs['weight'] ?? throw new RuntimeException("No font 'weight'.");
+            $source = $defs['source'] ?? throw new RuntimeException("No font 'source'.");
+
+            $this->registerFont(
+                pdf: $pdf,
+                family: $family,
+                style: $style,
+                weight: $weight,
+                source: $source,
+            );
+        }
+    }
+
+    private function registerFont(
+        Dompdf $pdf,
+        string $family,
+        string $style,
+        string $weight,
+        string $source,
+    ): void {
+
+        $fontMetrics = $pdf->getFontMetrics();
+
+        $fontMetrics->registerFont([
+            'family' => $family,
+            'style' => $style,
+            'weight' => $weight,
+        ], $source);
+    }
+}

application/Espo/Tools/Pdf/Dompdf/EntityPrinter.php

@@ -0,0 +1,95 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Pdf\Dompdf;
+
+use Dompdf\Adapter\CPDF;
+use Dompdf\Dompdf;
+use Espo\Core\FileStorage\Manager;
+use Espo\ORM\Entity;
+use Espo\Tools\Pdf\Contents;
+use Espo\Tools\Pdf\Data;
+use Espo\Tools\Pdf\Dompdf\Contents as DompdfContents;
+use Espo\Tools\Pdf\EntityPrinter as EntityPrinterInterface;
+use Espo\Tools\Pdf\Params;
+use Espo\Tools\Pdf\Template;
+use RuntimeException;
+
+class EntityPrinter implements EntityPrinterInterface
+{
+    public function __construct(
+        private DompdfInitializer $dompdfInitializer,
+        private HtmlComposer $htmlComposer,
+        private Manager $fileStorageManager,
+    ) {}
+
+    public function print(Template $template, Entity $entity, Params $params, Data $data): Contents
+    {
+        $pdf = $this->dompdfInitializer->initialize($template, $params);
+
+        $headHtml = $this->htmlComposer->composeHead($template, $entity);
+        $headerFooterHtml = $this->htmlComposer->composeHeaderFooter($template, $entity, $params, $data);
+        $mainHtml = $this->htmlComposer->composeMain($template, $entity, $params, $data);
+
+        $html = $headHtml . "\n<body>" . $headerFooterHtml . $mainHtml . "</body>";
+
+        $pdf->loadHtml($html);
+        $pdf->render();
+
+        $this->addAttachments($pdf, $data);
+
+        return new DompdfContents($pdf);
+    }
+
+    private function addAttachments(Dompdf $pdf, Data $data): void
+    {
+        if ($data->getAttachments() === []) {
+            return;
+        }
+
+        $canvas = $pdf->getCanvas();
+
+        if (!$canvas instanceof CPDF) {
+            throw new RuntimeException("Non CPDF canvas");
+        }
+
+        $cPdf = $canvas->get_cpdf();
+
+        foreach ($data->getAttachments() as $i => $attachmentWrapper) {
+            $attachment = $attachmentWrapper->getAttachment();
+
+            $path = $this->fileStorageManager->getLocalFilePath($attachment);
+
+            $name = $attachment->getName() ?? 'file-' . $i;
+            $description = $attachmentWrapper->getDescription() ?? '';
+
+            $cPdf->addEmbeddedFile($path, $name, $description);
+        }
+    }
+}

application/Espo/Tools/Pdf/Dompdf/HtmlComposer.php

@@ -0,0 +1,325 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Pdf\Dompdf;
+
+use chillerlan\QRCode\Common\EccLevel;
+use chillerlan\QRCode\Output\QRMarkupSVG;
+use chillerlan\QRCode\Output\QROutputInterface;
+use Espo\Core\Htmlizer\TemplateRendererFactory;
+use Espo\Core\Utils\Config;
+use Espo\Core\Utils\Log;
+use Espo\ORM\Entity;
+use Espo\Tools\Pdf\Data;
+use Espo\Tools\Pdf\Params;
+use Espo\Tools\Pdf\Template;
+
+use Picqer\Barcode\BarcodeGeneratorSVG;
+use chillerlan\QRCode\QRCode;
+use chillerlan\QRCode\QROptions;
+use Picqer\Barcode\Exceptions\UnknownTypeException;
+use RuntimeException;
+
+class HtmlComposer
+{
+    public function __construct(
+        private Config $config,
+        private TemplateRendererFactory $templateRendererFactory,
+        private ImageSourceProvider $imageSourceProvider,
+        private Log $log
+    ) {}
+
+    public function composeHead(Template $template, Entity $entity): string
+    {
+        $topMargin = $template->getTopMargin();
+        $rightMargin = $template->getRightMargin();
+        $bottomMargin = $template->getBottomMargin();
+        $leftMargin = $template->getLeftMargin();
+
+        $fontSize = $this->config->get('pdfFontSize') ?? 12;
+
+        $headerPosition = $template->getHeaderPosition();
+        $footerPosition = $template->getFooterPosition();
+
+
+        $titleHtml = '';
+
+        if ($template->hasTitle()) {
+            $title = $this->replacePlaceholders($template->getTitle(), $entity);
+
+            $titleHtml = "<title>" . htmlspecialchars($title) . "</title>";
+        }
+
+        $templateStyle = $template->getStyle() ?? '';
+
+        /** @noinspection HtmlRequiredTitleElement */
+        return "
+            <head>
+                {$titleHtml}
+                <meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>
+            </head>
+            <style>
+            @page {
+                margin: {$topMargin}mm {$rightMargin}mm {$bottomMargin}mm {$leftMargin}mm;
+            }
+
+            body {
+                font-size: {$fontSize}pt;
+            }
+
+            table.bordered, table.bordered td, table.bordered th {
+                border: 1px solid;
+            }
+
+            > header {
+                position: fixed;
+                margin-top: -{$topMargin}mm;
+                margin-left: -{$rightMargin}mm;
+                margin-right: -{$leftMargin}mm;
+                top: {$headerPosition}mm;
+                left: {$leftMargin}mm;
+                right: {$rightMargin}mm;
+            }
+
+            > footer {
+                position: fixed;
+                margin-bottom: -{$bottomMargin}mm;
+                margin-left: -{$leftMargin}mm;
+                margin-right: -{$rightMargin}mm;
+                height: {$footerPosition}mm;
+                bottom: 0;
+                left: {$leftMargin}mm;
+                right: {$rightMargin}mm;
+            }
+
+            > header .page-number:after,
+            > footer .page-number:after {
+                content: counter(page);
+            }
+
+            $templateStyle
+            </style>
+        ";
+    }
+
+    public function composeHeaderFooter(Template $template, Entity $entity, Params $params, Data $data): string
+    {
+        $html = "";
+
+        $renderer = $this->templateRendererFactory
+            ->create()
+            ->setApplyAcl($params->applyAcl())
+            ->setEntity($entity)
+            ->setSkipInlineAttachmentHandling()
+            ->setData($data->getAdditionalTemplateData());
+
+        if ($template->hasHeader()) {
+            $htmlHeader = $renderer->renderTemplate($template->getHeader());
+
+            $htmlHeader = $this->replaceHeadTags($htmlHeader);
+
+            $html .= "<header>$htmlHeader</header>";
+        }
+
+        if ($template->hasFooter()) {
+            $htmlFooter = $renderer->renderTemplate($template->getFooter());
+
+            $htmlFooter = $this->replaceHeadTags($htmlFooter);
+
+            $html .= "<footer>$htmlFooter</footer>";
+        }
+
+        return $html;
+    }
+
+    public function composeMain(
+        Template $template,
+        Entity $entity,
+        Params $params,
+        Data $data
+    ): string {
+
+        $renderer = $this->templateRendererFactory
+            ->create()
+            ->setApplyAcl($params->applyAcl())
+            ->setEntity($entity)
+            ->setSkipInlineAttachmentHandling()
+            ->setData($data->getAdditionalTemplateData());
+
+        $bodyTemplate = $template->getBody();
+
+        $html = $renderer->renderTemplate($bodyTemplate);
+
+        $html = $this->replaceTags($html);
+
+        return "<main>$html</main>";
+    }
+
+    private function replaceTags(string $html): string
+    {
+        /** @noinspection HtmlUnknownAttribute */
+        $html = str_replace('<br pagebreak="true">', '<div style="page-break-after: always;"></div>', $html);
+        $html = preg_replace('/src="@([A-Za-z0-9+\/]*={0,2})"/', 'src="data:image/jpeg;base64,$1"', $html);
+        $html = str_replace('?entryPoint=attachment&amp;', '?entryPoint=attachment&', $html ?? '');
+
+        $html = preg_replace_callback(
+            '/<barcodeimage data="([^"]+)"\/>/',
+            function ($matches) {
+                $dataString = $matches[1];
+
+                $data = json_decode(urldecode($dataString), true);
+
+                return $this->composeBarcode($data);
+            },
+            $html
+        ) ?? '';
+
+        return preg_replace_callback(
+            "/src=\"\?entryPoint=attachment&id=([A-Za-z0-9\-]*)\"/",
+            function ($matches) {
+                $id = $matches[1];
+
+                if (!$id) {
+                    return '';
+                }
+
+                $src = $this->imageSourceProvider->get($id);
+
+                if (!$src) {
+                    return '';
+                }
+
+                return "src=\"$src\"";
+            },
+            $html
+        ) ?? '';
+    }
+
+    private function replaceHeadTags(string $html): string
+    {
+        $html = str_replace('{pageNumber}', '<span class="page-number"></span>', $html);
+
+        return $this->replaceTags($html);
+    }
+
+    /**
+     *
+     * @param array<string, mixed> $data
+     * @return string
+     */
+    private function composeBarcode(array $data): string
+    {
+        $value = $data['value'] ?? null;
+
+        if ($value === null) {
+            return '';
+        }
+
+        $codeType = $data['type'] ?? 'CODE128';
+
+        /** @noinspection SpellCheckingInspection */
+        $typeMap = [
+            "CODE128" => 'C128',
+            "CODE128A" => 'C128A',
+            "CODE128B" => 'C128B',
+            "CODE128C" => 'C128C',
+            "EAN13" => 'EAN13',
+            "EAN8" => 'EAN8',
+            "EAN5" => 'EAN5',
+            "EAN2" => 'EAN2',
+            "UPC" => 'UPCA',
+            "UPCE" => 'UPCE',
+            "ITF14" => 'I25',
+            "pharmacode" => 'PHARMA',
+            "QRcode" => 'QRCODE,H',
+        ];
+
+        $type = $typeMap[$codeType] ?? null;
+
+        /** @noinspection SpellCheckingInspection */
+        if ($codeType === 'QRcode') {
+            $width = $data['width'] ?? 40;
+            $height = $data['height'] ?? 40;
+            //$color = $data['color'] ?? '#000';
+
+            $options = new QROptions();
+
+            // @todo Revise and test after updating the lib.
+            /** @phpstan-ignore-next-line property.protected */
+            $options->outputType = QROutputInterface::MARKUP_SVG;
+            /** @phpstan-ignore-next-line property.protected */
+            $options->eccLevel = EccLevel::H;
+
+            $code = (new QRCode($options))->render($value);
+
+            $css = "width: {$width}mm; height: {$height}mm;";
+
+            /** @noinspection HtmlRequiredAltAttribute */
+            return "<img src=\"$code\" style=\"$css\">";
+        }
+
+        if (!$type || $type === 'QRCODE,H') {
+            $this->log->warning("Not supported barcode type $codeType.");
+
+            return '';
+        }
+
+        $width = $data['width'] ?? 60;
+        $height = $data['height'] ?? 30;
+        $color = $data['color'] ?? '#000';
+
+        try {
+            $code = (new BarcodeGeneratorSVG())->getBarcode($value, $type, 2, $height, $color);
+        } catch (UnknownTypeException $e) {
+            throw new RuntimeException("Barcode print error.", previous: $e);
+        }
+
+        $encoded = base64_encode($code);
+
+        $css = "width: {$width}mm; height: {$height}mm;";
+
+        /** @noinspection HtmlRequiredAltAttribute */
+        return "<img src=\"data:image/svg+xml;base64,$encoded\" style=\"$css\">";
+    }
+
+    private function replacePlaceholders(string $string, Entity $entity): string
+    {
+        $newString = $string;
+
+        $attributeList = ['name'];
+
+        foreach ($attributeList as $attribute) {
+            $value = (string) ($entity->get($attribute) ?? '');
+
+            $newString = str_replace('{$' . $attribute . '}', $value, $newString);
+        }
+
+        return $newString;
+    }
+}

application/Espo/Tools/Pdf/Dompdf/ImageSourceProvider.php

@@ -0,0 +1,71 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Pdf\Dompdf;
+
+use Espo\Core\Exceptions\Forbidden;
+use Espo\Core\FileStorage\Manager as FileStorageManager;
+use Espo\Entities\Attachment;
+use Espo\ORM\EntityManager;
+use Espo\Tools\Attachment\Checker;
+
+class ImageSourceProvider
+{
+    public function __construct(
+        private EntityManager $entityManager,
+        private Checker $checker,
+        private FileStorageManager $fileStorageManager,
+    ) {}
+
+    public function get(string $id): ?string
+    {
+        /** @var Attachment $attachment */
+        $attachment = $this->entityManager->getEntityById(Attachment::ENTITY_TYPE, $id);
+
+        if (!$attachment) {
+            return null;
+        }
+
+        try {
+            $this->checker->checkTypeImage($attachment);
+        } catch (Forbidden) {
+            return null;
+        }
+
+        $type = $attachment->getType();
+
+        if (!$type) {
+            return null;
+        }
+
+        $contents = $this->fileStorageManager->getContents($attachment);
+
+        return 'data:' . $type . ';base64,' . base64_encode($contents);
+    }
+}