Adição da biblioteca barryvdh/DomPDF

Adicionei as dependências no composer, aliases em app.php, rotas para geração de tabela com todos usuários e uma rota de teste para imprimir um PDF de teste

app/Http/Controllers/PDFController.php

+<?php
+  
+namespace App\Http\Controllers;
+  
+use Illuminate\Http\Request;
+use PDF;
+  
+class PDFController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function generatePDF()
+    {
+        $data = [
+            'title' => 'Test of pdf generation',
+            'date' => date('m/d/Y')
+        ];
+          
+        $pdf = PDF::loadView('myPDF', $data);
+    
+        return $pdf->download('PAD-PDF-TEST.pdf');
+    }
+}
\ No newline at end of file

app/Http/Controllers/UserController.php

@@ -279,4 +279,18 @@ class UserController extends Controller
 
         return Response::json($array);
     }
+
+    public function showUsers(){
+        $user = User::all();
+        return view('index', compact('user'));
+    }
+
+    public function createPDF() {
+        $data = User::all();
+        // share data to view
+        view()->share('user',$data);
+        $pdf = PDF::loadView('pdf_view', $data);
+        return $pdf->download('pdf_file.pdf');
+    }
+
 }

bootstrap/app.php

@@ -41,6 +41,10 @@ $app->singleton(
     App\Exceptions\Handler::class
 );
 
+$app->singleton(
+    \Barryvdh\DomPDF\ServiceProvider::class
+);
+
 /*
 |--------------------------------------------------------------------------
 | Return The Application

composer.json

@@ -6,6 +6,7 @@
     "license": "MIT",
     "require": {
         "php": "^7.3|^8.0",
+        "barryvdh/laravel-dompdf": "^2.0",
         "doctrine/dbal": "^3.3",
         "fruitcake/laravel-cors": "^2.0",
         "guzzlehttp/guzzle": "^7.0.1",

config/app.php

@@ -175,6 +175,7 @@ return [
         // App\Providers\BroadcastServiceProvider::class,
         App\Providers\EventServiceProvider::class,
         App\Providers\RouteServiceProvider::class,
+        Barryvdh\DomPDF\ServiceProvider::class,
 
     ],
 
@@ -231,6 +232,7 @@ return [
         'Validator' => Illuminate\Support\Facades\Validator::class,
         'View' => Illuminate\Support\Facades\View::class,
         'Excel' => Maatwebsite\Excel\Facades\Excel::class,
+        'PDF' => Barryvdh\DomPDF\Facade::class,
 
     ],
 

config/dompdf.php

+<?php
+
+return array(
+
+    /*
+    |--------------------------------------------------------------------------
+    | Settings
+    |--------------------------------------------------------------------------
+    |
+    | Set some default values. It is possible to add all defines that can be set
+    | in dompdf_config.inc.php. You can also override the entire config file.
+    |
+    */
+    'show_warnings' => false,   // Throw an Exception on warnings from dompdf
+
+    'public_path' => null,  // Override the public path if needed
+
+    /*
+     * Dejavu Sans font is missing glyphs for converted entities, turn it off if you need to show € and £.
+     */
+    'convert_entities' => true,
+
+    'options' => array(
+        /**
+         * The location of the DOMPDF font directory
+         *
+         * The location of the directory where DOMPDF will store fonts and font metrics
+         * Note: This directory must exist and be writable by the webserver process.
+         * *Please note the trailing slash.*
+         *
+         * Notes regarding fonts:
+         * Additional .afm font metrics can be added by executing load_font.php from command line.
+         *
+         * Only the original "Base 14 fonts" are present on all pdf viewers. Additional fonts must
+         * be embedded in the pdf file or the PDF may not display correctly. This can significantly
+         * increase file size unless font subsetting is enabled. Before embedding a font please
+         * review your rights under the font license.
+         *
+         * Any font specification in the source HTML is translated to the closest font available
+         * in the font directory.
+         *
+         * The pdf standard "Base 14 fonts" are:
+         * Courier, Courier-Bold, Courier-BoldOblique, Courier-Oblique,
+         * Helvetica, Helvetica-Bold, Helvetica-BoldOblique, Helvetica-Oblique,
+         * Times-Roman, Times-Bold, Times-BoldItalic, Times-Italic,
+         * Symbol, ZapfDingbats.
+         */
+        "font_dir" => storage_path('fonts'), // advised by dompdf (https://github.com/dompdf/dompdf/pull/782)
+
+        /**
+         * The location of the DOMPDF font cache directory
+         *
+         * This directory contains the cached font metrics for the fonts used by DOMPDF.
+         * This directory can be the same as DOMPDF_FONT_DIR
+         *
+         * Note: This directory must exist and be writable by the webserver process.
+         */
+        "font_cache" => storage_path('fonts'),
+
+        /**
+         * The location of a temporary directory.
+         *
+         * The directory specified must be writeable by the webserver process.
+         * The temporary directory is required to download remote images and when
+         * using the PFDLib back end.
+         */
+        "temp_dir" => sys_get_temp_dir(),
+
+        /**
+         * ==== IMPORTANT ====
+         *
+         * dompdf's "chroot": Prevents dompdf from accessing system files or other
+         * files on the webserver.  All local files opened by dompdf must be in a
+         * subdirectory of this directory.  DO NOT set it to '/' since this could
+         * allow an attacker to use dompdf to read any files on the server.  This
+         * should be an absolute path.
+         * This is only checked on command line call by dompdf.php, but not by
+         * direct class use like:
+         * $dompdf = new DOMPDF();  $dompdf->load_html($htmldata); $dompdf->render(); $pdfdata = $dompdf->output();
+         */
+        "chroot" => realpath(base_path()),
+
+        /**
+         * Protocol whitelist
+         *
+         * Protocols and PHP wrappers allowed in URIs, and the validation rules
+         * that determine if a resouce may be loaded. Full support is not guaranteed
+         * for the protocols/wrappers specified
+         * by this array.
+         *
+         * @var array
+         */
+        'allowed_protocols' => [
+            "file://" => ["rules" => []],
+            "http://" => ["rules" => []],
+            "https://" => ["rules" => []]
+        ],
+
+         /**
+          * @var string
+          */
+        'log_output_file' => null,
+
+        /**
+         * Whether to enable font subsetting or not.
+         */
+        "enable_font_subsetting" => false,
+
+        /**
+         * The PDF rendering backend to use
+         *
+         * Valid settings are 'PDFLib', 'CPDF' (the bundled R&OS PDF class), 'GD' and
+         * 'auto'. 'auto' will look for PDFLib and use it if found, or if not it will
+         * fall back on CPDF. 'GD' renders PDFs to graphic files. {@link
+         * Canvas_Factory} ultimately determines which rendering class to instantiate
+         * based on this setting.
+         *
+         * Both PDFLib & CPDF rendering backends provide sufficient rendering
+         * capabilities for dompdf, however additional features (e.g. object,
+         * image and font support, etc.) differ between backends.  Please see
+         * {@link PDFLib_Adapter} for more information on the PDFLib backend
+         * and {@link CPDF_Adapter} and lib/class.pdf.php for more information
+         * on CPDF. Also see the documentation for each backend at the links
+         * below.
+         *
+         * The GD rendering backend is a little different than PDFLib and
+         * CPDF. Several features of CPDF and PDFLib are not supported or do
+         * not make any sense when creating image files.  For example,
+         * multiple pages are not supported, nor are PDF 'objects'.  Have a
+         * look at {@link GD_Adapter} for more information.  GD support is
+         * experimental, so use it at your own risk.
+         *
+         * @link http://www.pdflib.com
+         * @link http://www.ros.co.nz/pdf
+         * @link http://www.php.net/image
+         */
+        "pdf_backend" => "CPDF",
+
+        /**
+         * PDFlib license key
+         *
+         * If you are using a licensed, commercial version of PDFlib, specify
+         * your license key here.  If you are using PDFlib-Lite or are evaluating
+         * the commercial version of PDFlib, comment out this setting.
+         *
+         * @link http://www.pdflib.com
+         *
+         * If pdflib present in web server and auto or selected explicitely above,
+         * a real license code must exist!
+         */
+        //"DOMPDF_PDFLIB_LICENSE" => "your license key here",
+
+        /**
+         * html target media view which should be rendered into pdf.
+         * List of types and parsing rules for future extensions:
+         * http://www.w3.org/TR/REC-html40/types.html
+         *   screen, tty, tv, projection, handheld, print, braille, aural, all
+         * Note: aural is deprecated in CSS 2.1 because it is replaced by speech in CSS 3.
+         * Note, even though the generated pdf file is intended for print output,
+         * the desired content might be different (e.g. screen or projection view of html file).
+         * Therefore allow specification of content here.
+         */
+        "default_media_type" => "screen",
+
+        /**
+         * The default paper size.
+         *
+         * North America standard is "letter"; other countries generally "a4"
+         *
+         * @see CPDF_Adapter::PAPER_SIZES for valid sizes ('letter', 'legal', 'A4', etc.)
+         */
+        "default_paper_size" => "a4",
+
+         /**
+          * The default paper orientation.
+          *
+          * The orientation of the page (portrait or landscape).
+          *
+          * @var string
+          */
+        'default_paper_orientation' => "portrait",
+
+        /**
+         * The default font family
+         *
+         * Used if no suitable fonts can be found. This must exist in the font folder.
+         * @var string
+         */
+        "default_font" => "serif",
+
+        /**
+         * Image DPI setting
+         *
+         * This setting determines the default DPI setting for images and fonts.  The
+         * DPI may be overridden for inline images by explictly setting the
+         * image's width & height style attributes (i.e. if the image's native
+         * width is 600 pixels and you specify the image's width as 72 points,
+         * the image will have a DPI of 600 in the rendered PDF.  The DPI of
+         * background images can not be overridden and is controlled entirely
+         * via this parameter.
+         *
+         * For the purposes of DOMPDF, pixels per inch (PPI) = dots per inch (DPI).
+         * If a size in html is given as px (or without unit as image size),
+         * this tells the corresponding size in pt.
+         * This adjusts the relative sizes to be similar to the rendering of the
+         * html page in a reference browser.
+         *
+         * In pdf, always 1 pt = 1/72 inch
+         *
+         * Rendering resolution of various browsers in px per inch:
+         * Windows Firefox and Internet Explorer:
+         *   SystemControl->Display properties->FontResolution: Default:96, largefonts:120, custom:?
+         * Linux Firefox:
+         *   about:config *resolution: Default:96
+         *   (xorg screen dimension in mm and Desktop font dpi settings are ignored)
+         *
+         * Take care about extra font/image zoom factor of browser.
+         *
+         * In images, <img> size in pixel attribute, img css style, are overriding
+         * the real image dimension in px for rendering.
+         *
+         * @var int
+         */
+        "dpi" => 96,
+
+        /**
+         * Enable inline PHP
+         *
+         * If this setting is set to true then DOMPDF will automatically evaluate
+         * inline PHP contained within <script type="text/php"> ... </script> tags.
+         *
+         * Enabling this for documents you do not trust (e.g. arbitrary remote html
+         * pages) is a security risk.  Set this option to false if you wish to process
+         * untrusted documents.
+         *
+         * @var bool
+         */
+        "enable_php" => false,
+
+        /**
+         * Enable inline Javascript
+         *
+         * If this setting is set to true then DOMPDF will automatically insert
+         * JavaScript code contained within <script type="text/javascript"> ... </script> tags.
+         *
+         * @var bool
+         */
+        "enable_javascript" => true,
+
+        /**
+         * Enable remote file access
+         *
+         * If this setting is set to true, DOMPDF will access remote sites for
+         * images and CSS files as required.
+         * This is required for part of test case www/test/image_variants.html through www/examples.php
+         *
+         * Attention!
+         * This can be a security risk, in particular in combination with DOMPDF_ENABLE_PHP and
+         * allowing remote access to dompdf.php or on allowing remote html code to be passed to
+         * $dompdf = new DOMPDF(, $dompdf->load_html(...,
+         * This allows anonymous users to download legally doubtful internet content which on
+         * tracing back appears to being downloaded by your server, or allows malicious php code
+         * in remote html pages to be executed by your server with your account privileges.
+         *
+         * @var bool
+         */
+        "enable_remote" => true,
+
+        /**
+         * A ratio applied to the fonts height to be more like browsers' line height
+         */
+        "font_height_ratio" => 1.1,
+
+        /**
+         * Use the HTML5 Lib parser
+         *
+         * @deprecated This feature is now always on in dompdf 2.x
+         * @var bool
+         */
+        "enable_html5_parser" => true,
+    ),
+
+
+);

resources/views/myPDF.blade.php

+<!DOCTYPE html>
+<html>
+<head>
+    <title>Hi</title>
+</head>
+<body>
+    <h1>{{ $title }}</h1>
+    <p>{{ $date }}</p>
+    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
+    tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
+    quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
+    consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
+    cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
+    proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
+</body>
+</html>
\ No newline at end of file

routes/web.php

@@ -9,6 +9,8 @@ use App\Http\Controllers\ProfessorController;
 use App\Http\Controllers\AvaliadorController;
 use App\Http\Controllers\PadController;
 
+use App\Http\Controllers\PDFController;
+
 use Illuminate\Support\Facades\Route;
 
 /*
@@ -108,4 +110,9 @@ Route::prefix('/user')->group(function () {
     Route::get('/edit/perfil/{tab?}', [UserController::class, 'editPerfil'])->name('edit_perfil');
     Route::post('/update/perfil', [UserController::class, 'updatePerfil'])->name('update_perfil');
     Route::post('/update/password', [UserController::class, 'updatePassword'])->name('update_password');
+    Route::get('/users', [EmployeeController::class, 'showUsers']);
+    Route::get('/users/pdf', [EmployeeController::class, 'createPDF']);
 });
+
+// Simple concept test of creating a LOREM IPSUM With Barryvdh-DomPDF
+Route::get('generate-pdf',[PDFController::class, 'generatePDF']);