- anche la versione file compressa del PDF ora è ok.

package.json

@@ -21,6 +21,7 @@
     "bluebird": "^3.7.2",
     "body-parser": "^1.20.3",
     "cheerio": "^1.0.0",
+    "compress-pdf": "^0.5.3",
     "cookie-parser": "^1.4.7",
     "cors": "^2.8.5",
     "country-codes-list": "^2.0.0",

src/server/modules/GenPdf.js

@@ -1,5 +1,7 @@
 const puppeteer = require('puppeteer');
 const path = require('path');
+const { exec } = require('child_process');
+
 const fs = require('fs').promises;
 
 const gs = require('ghostscript4js');
@@ -12,6 +14,8 @@ const { MyPage } = require('../models/mypage');
 const tools = require('../tools/general');
 const shared_consts = require('../tools/shared_nodejs');
 
+const { compress } = require('compress-pdf');
+
 class GenPdf {
   constructor(idapp) {
     this.idapp = idapp;
@@ -42,26 +46,24 @@ class GenPdf {
   }
 
   async autoScroll(page) {
-    console.log('inizia a scrollare')
+    console.log('inizia a scrollare');
     await page.evaluate(async () => {
       await new Promise((resolve) => {
         let totalHeight = 0;
-        console.log('autoScroll...')
+        console.log('autoScroll...');
         const distance = 100;
         const timer = setInterval(() => {
           window.scrollBy(0, distance);
           totalHeight += distance;
-  
+
           if (totalHeight >= document.body.scrollHeight) {
             clearInterval(timer);
             resolve();
           }
         }, 40);
-
-        
       });
     });
-    console.log('  FINE: autoScroll...')
+    console.log('  FINE: autoScroll...');
   }
 
   async generatePdfFromUrl(url, filenameOut, options = {}) {
@@ -70,23 +72,37 @@ class GenPdf {
     }
 
     const page = await this.browser.newPage();
+    const maxTentativi = 3;
 
     try {
+      console.log(`caricamento pagina: ${url}`);
       await page.goto(url, { waitUntil: 'networkidle0' });
       await tools.attendiNSecondi(5);
-      await page.waitForSelector('#q-notify', { timeout: 60000 });
+      let success = false;
+      let numTentativi1 = 0;
+      while (numTentativi1 < maxTentativi) {
+        try {
+          await page.waitForSelector('.pdf-section', { timeout: 10000 });
+          success = true;
+          break;
+        } catch (e) {
+          console.log(`Tentativo ${numTentativi1 + 1}/${maxTentativi} fallito, ASPETTO DI PIU 10 secondi`);
+          await tools.attendiNSecondi(10);
+        }
+        numTentativi1++;
+      }
 
       await this.autoScroll(page);
-      
+
       await tools.attendiNSecondi(5);
-      
 
       // Seleziona tutte le sezioni da stampare
       let sectionHandles = await page.$$('.pdf-section');
       let numTentativi = 0;
-      const maxTentativi = 3;
       while (sectionHandles.length === 0 && numTentativi < maxTentativi) {
-        console.log(`Nessuna sezione .pdf-section trovata nella pagina, quindi ASPETTO DI PIU ${numTentativi + 1}/${maxTentativi}`);
+        console.log(
+          `Nessuna sezione .pdf-section trovata nella pagina, quindi ASPETTO DI PIU ${numTentativi + 1}/${maxTentativi}`
+        );
         await tools.attendiNSecondi(5);
         sectionHandles = await page.$$('.pdf-section');
         numTentativi++;
@@ -113,8 +129,7 @@ class GenPdf {
           height: el.scrollHeight, // piccolo padding
         }));
 
-        console.log(`Larghezza: ${width}px, Altezza: ${height}px`);
+        // console.log(`Larghezza: ${width}px, Altezza: ${height}px`);
-        
 
         // Imposta viewport dinamico
         await page.setViewport({ width, height });
@@ -151,6 +166,9 @@ class GenPdf {
 
       console.log(`PDF finale generato: ${finalFilePath}`);
 
+      if (options.compressione) {
+      }
+
       return finalFilePath;
     } catch (error) {
       console.error('Errore durante generazione PDF:', error);
@@ -361,6 +379,8 @@ class GenPdf {
       }
       let filenamerelative = '';
       let fullnamepath = '';
+      let fullnamepath_compr = '';
+      let filenamerelative_compressed = '';
       let stampa = options.stampa;
 
       /*if (stampa) {
@@ -373,28 +393,71 @@ class GenPdf {
 
       const catalog = await Catalog.findById(options.idCatalog);
       if (catalog) {
-        const url = tools.getHostByIdApp(this.idapp) + '/cataloghi?id=' + catalog._id + '&stampa=' + (stampa ? '1' : '0');
+        const url =
+          tools.getHostByIdApp(this.idapp) + '/cataloghi?id=' + catalog._id + '&stampa=' + (stampa ? '1' : '0') + '&hideHeader=1';
 
         if (url) {
           const myfilenameout = await this.getPathByPage(catalog.idPageAssigned);
 
-          
+          let addstr = stampa ? '_stampabile' : '';
-          let addstr = (stampa) ? '_stampabile' : '';
 
           filenamerelative = options.path + `${myfilenameout}${addstr}_generato.pdf`;
 
           fullnamepath = tools.getdirByIdApp(this.idapp) + '/' + filenamerelative;
           await this.generatePdfFromUrl(url, fullnamepath, options);
+
+          if (options.comprimi) {
+            filenamerelative_compressed = options.path + `${myfilenameout}${addstr}_generato_compressed.pdf`;
+            fullnamepath_compr = tools.getdirByIdApp(this.idapp) + '/' + filenamerelative_compressed;
+            await this.compressPdf(fullnamepath, fullnamepath_compr, options.compressione);
+          }
         }
       }
 
-      return {fileout: filenamerelative, filesize: await tools.getSizeFile(fullnamepath)};
+      return {
+        fileout: filenamerelative,
+        fileout_compressed: filenamerelative_compressed,
+        filesize: await tools.getSizeFile(fullnamepath),
+        filesize_compressed: await tools.getSizeFile(fullnamepath_compr),
+      };
     } catch (error) {
       console.error('Errore durante la generazione del PDF dal catalogo ID:', error);
-      return {fileout: '', filesize: 0, error: 'Errore durante la generazione del PDF dal catalogo ID:' + error?.message};
+      return {
+        fileout: '',
+        filesize: 0,
+        error: 'Errore durante la generazione del PDF dal catalogo ID:' + error?.message,
+      };
     }
 
-    return {fileout: '', filesize: 0 };
+    return { fileout: '', filesize: 0 };
+  }
+
+  async compressPdf(inputPath, outputPath, compressione = 'printer') {
+    return new Promise((resolve, reject) => {
+      // Risolvi i percorsi assoluti
+      const inputFile = path.resolve(inputPath);
+      const outputFile = path.resolve(outputPath);
+
+      const validQualities = ['screen', 'ebook', 'printer', 'prepress', 'default'];
+    if (!validQualities.includes(compressione)) compressione = 'screen';
+
+      // Comando Ghostscript per compressione - impostazione per web (/screen)
+      const gsCommand = `gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/${compressione} -dNOPAUSE -dBATCH -dQUIET -sOutputFile="${outputFile}" "${inputFile}"`;
+
+      console.log('Eseguo comando:', gsCommand);
+
+      exec(gsCommand, (error, stdout, stderr) => {
+        if (error) {
+          console.error(`Errore compressione PDF: ${error.message}`);
+          return reject(error);
+        }
+        if (stderr) {
+          console.error(`Ghostscript stderr: ${stderr}`);
+        }
+        console.log(`Compressione completata. File salvato in: ${outputFile}`);
+        resolve(outputFile);
+      });
+    });
   }
 }
 

yarn.lock

@@ -2363,6 +2363,14 @@ component-emitter@^1.3.0:
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.3.1.tgz#ef1d5796f7d93f135ee6fb684340b26403c97d17"
   integrity sha512-T0+barUSQRTUQASh8bx02dl+DhF54GtIDY13Y3m9oWTklKbb3Wv974meRpeZ3lp1JpLVECWWNHC4vaG2XHXouQ==
 
+compress-pdf@^0.5.3:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/compress-pdf/-/compress-pdf-0.5.3.tgz#15a8c5d43f2241437a1ad42306955ccb9319367e"
+  integrity sha512-LeDPmE+o0PwxzqLU/uGIsaLxmnzZy4lXaY0tBov03uhNgXV6dZjU3VTBy3LhAhiCV+moXyBBE9kCDOZzZcEobg==
+  dependencies:
+    dotenv "16.4.7"
+    lodash "4.17.21"
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -3009,7 +3017,7 @@ domutils@^3.0.1, domutils@^3.1.0:
     domelementtype "^2.3.0"
     domhandler "^5.0.3"
 
-dotenv@^16.4.7:
+dotenv@16.4.7, dotenv@^16.4.7:
   version "16.4.7"
   resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-16.4.7.tgz#0e20c5b82950140aa99be360a8a5f52335f53c26"
   integrity sha512-47qPchRCykZC03FhkYAhrvwU4xDBFIj1QPqaarj6mdM/hgUzfPHcpkHJOn3mJAufFeeAxAzeGsr5X0M4k6fLZQ==
@@ -5957,7 +5965,7 @@ lodash.some@^4.4.0:
   resolved "https://registry.yarnpkg.com/lodash.some/-/lodash.some-4.6.0.tgz#1bb9f314ef6b8baded13b549169b2a945eb68e4d"
   integrity sha512-j7MJE+TuT51q9ggt4fSgVqro163BEFjAt3u97IqU+JA2DkWl80nFTrowzLpZ/BnpN7rrl0JA/593NAdd8p/scQ==
 
-lodash@^4.17.10, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.21:
+lodash@4.17.21, lodash@^4.17.10, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.21:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==