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Calendario: il PDF e' un file vero, generato dal server

Browse Source 
"Scarica in PDF" non apre piu' la stampa del browser: e' un link a
/calendario/<id>.pdf che restituisce un documento disegnato dal dato con PDFKit,
con Content-Disposition attachment. Serve perche' il calendario si gira su
WhatsApp, ed e' cosi' che questo centro parla coi clienti: chi lo riceve non ha
il sito aperto davanti.

Niente browser headless: Chromium in un container da 2 vCPU costa centinaia di
megabyte e un processo per richiesta, per una griglia di sette colonne.

Le linee della griglia si tracciano in una passata a parte, dopo i riempimenti:
disegnandole riga per riga, il riempimento della riga seguente copriva quella
appena fatta e due lezioni uguali in fasce consecutive si leggevano come un
blocco unico lungo il doppio.

Quattro test: intestazione %PDF- e coda %%EOF (un documento non chiuso arriva
monco e il browser mostra una pagina bianca invece di un errore), una pagina
sola, nomi di file distinti. Un id sconosciuto e' 404, non un PDF vuoto.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
AdrianoDev
2026-08-17 16:14:02 +02:00
parent 01f49ab6d2
commit 5be0fa787c
6 changed files with 416 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
package-lock.json
Generated
+181 -3
View File
@@ -22,6 +22,7 @@
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"better-sqlite3": "^12.11.1",
"nodemailer": "^9.0.3",
"pdfkit": "^0.19.1",
"react": "^19.2.8",
"react-dom": "^19.2.8",
"recharts": "^3.10.1",
@@ -32,6 +33,7 @@
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"@types/better-sqlite3": "^7.6.13",
"@types/nodemailer": "^8.0.1",
"@types/pdfkit": "^0.17.6",
"@types/sanitize-html": "^2.16.1",
"marked": "^18.0.7",
"typescript": "^6.0.3",
@@ -1964,6 +1966,30 @@
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}
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"license": "MIT",
"engines": {
"node": "^14.21.3 || >=16"
},
"funding": {
"url": "https://paulmillr.com/funding/"
}
},
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"resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.8.0.tgz",
"integrity": "sha512-jCs9ldd7NwzpgXDIf6P3+NrHh9/sD6CQdxHyjQI+h/6rDNo88ypBxxz45UDuZHz9r3tNz7N/VInSVoVdtXEI4A==",
"license": "MIT",
"engines": {
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},
"funding": {
"url": "https://paulmillr.com/funding/"
}
},
"node_modules/@oslojs/encoding": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/@oslojs/encoding/-/encoding-1.1.0.tgz",
@@ -2387,6 +2413,15 @@
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"license": "MIT"
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"node_modules/@swc/helpers": {
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"node_modules/@tiptap/core": {
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@@ -2979,6 +3014,16 @@
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"dev": true,
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"dependencies": {
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@@ -3583,6 +3628,24 @@
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"license": "ISC"
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"resolved": "https://registry.npmjs.org/brotli/-/brotli-1.3.3.tgz",
"integrity": "sha512-oTKjJdShmDuGW94SyyaoQvAjf30dZaHnjJ8uAF+u2/vGJkJbJPJAT1gDiOJP5v1Zb6f9KEyW/1HpuaWIXtGHPg==",
"license": "MIT",
"dependencies": {
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"license": "MIT",
"dependencies": {
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"node_modules/browserslist": {
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"resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.28.7.tgz",
@@ -3751,6 +3814,15 @@
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"node_modules/clone": {
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"resolved": "https://registry.npmjs.org/clone/-/clone-2.1.2.tgz",
"integrity": "sha512-3Pe/CF1Nn94hyhIYpjtiLhdCoEoz0DqQ+988E9gmeEdQZlojxnOb74wctFyuwWQHzqyf9X7C7MG8juUpqBJT8w==",
"license": "MIT",
"engines": {
"node": ">=0.8"
}
},
"node_modules/clsx": {
"version": "2.1.1",
"resolved": "https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz",
@@ -4163,6 +4235,12 @@
"url": "https://github.com/sponsors/wooorm"
}
},
"node_modules/dfa": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/dfa/-/dfa-1.2.0.tgz",
"integrity": "sha512-ED3jP8saaweFTjeGX8HQPjeC1YYyZs98jGNZx6IiBvxW7JG5v492kamAQB3m2wop07CvU/RQmzcKr6bgcC5D/Q==",
"license": "MIT"
},
"node_modules/diff": {
"version": "8.0.4",
"resolved": "https://registry.npmjs.org/diff/-/diff-8.0.4.tgz",
@@ -4449,7 +4527,6 @@
"version": "3.1.3",
"resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
"integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
"dev": true,
"license": "MIT"
},
"node_modules/fast-string-truncated-width": {
@@ -4534,6 +4611,23 @@
"fontkitten": "^1.0.2"
}
},
"node_modules/fontkit": {
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/fontkit/-/fontkit-2.0.4.tgz",
"integrity": "sha512-syetQadaUEDNdxdugga9CpEYVaQIxOwk7GlwZWWZ19//qW4zE5bknOKeMBDYAASwnpaSHKJITRLMF9m1fp3s6g==",
"license": "MIT",
"dependencies": {
"@swc/helpers": "^0.5.12",
"brotli": "^1.3.2",
"clone": "^2.1.2",
"dfa": "^1.2.0",
"fast-deep-equal": "^3.1.3",
"restructure": "^3.0.0",
"tiny-inflate": "^1.0.3",
"unicode-properties": "^1.4.0",
"unicode-trie": "^2.0.0"
}
},
"node_modules/fontkitten": {
"version": "1.0.3",
"resolved": "https://registry.npmjs.org/fontkitten/-/fontkitten-1.0.3.tgz",
@@ -4889,6 +4983,12 @@
"url": "https://github.com/sponsors/sindresorhus"
}
},
"node_modules/js-md5": {
"version": "0.8.3",
"resolved": "https://registry.npmjs.org/js-md5/-/js-md5-0.8.3.tgz",
"integrity": "sha512-qR0HB5uP6wCuRMrWPTrkMaev7MJZwJuuw4fnwAzRgP4J4/F8RwtodOKpGp4XpqsLBFzzgqIO42efFAyz2Et6KQ==",
"license": "MIT"
},
"node_modules/js-tokens": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -5222,6 +5322,25 @@
"url": "https://opencollective.com/parcel"
}
},
"node_modules/linebreak": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/linebreak/-/linebreak-1.1.0.tgz",
"integrity": "sha512-MHp03UImeVhB7XZtjd0E4n6+3xr5Dq/9xI/5FptGk5FrbDR3zagPa2DS6U8ks/3HjbKWG9Q1M2ufOzxV2qLYSQ==",
"license": "MIT",
"dependencies": {
"base64-js": "0.0.8",
"unicode-trie": "^2.0.0"
}
},
"node_modules/linebreak/node_modules/base64-js": {
"version": "0.0.8",
"resolved": "https://registry.npmjs.org/base64-js/-/base64-js-0.0.8.tgz",
"integrity": "sha512-3XSA2cR/h/73EzlXXdU6YNycmYI7+kicTxks4eJg2g39biHR84slg2+des+p7iHYhbRg/udIS4TD53WabcOUkw==",
"license": "MIT",
"engines": {
"node": ">= 0.4"
}
},
"node_modules/linkifyjs": {
"version": "4.3.3",
"resolved": "https://registry.npmjs.org/linkifyjs/-/linkifyjs-4.3.3.tgz",
@@ -5692,6 +5811,12 @@
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"license": "MIT"
},
"node_modules/pako": {
"version": "1.0.11",
"resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
"integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
"license": "(MIT AND Zlib)"
},
"node_modules/parse-srcset": {
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/parse-srcset/-/parse-srcset-1.0.2.tgz",
@@ -5712,6 +5837,20 @@
"dev": true,
"license": "MIT"
},
"node_modules/pdfkit": {
"version": "0.19.1",
"resolved": "https://registry.npmjs.org/pdfkit/-/pdfkit-0.19.1.tgz",
"integrity": "sha512-6Gzk+wDwTs4VSxsR5rCMTnIl5nlmkye1oWB0l2hDB1EX6ZNSIBroKQEv+2+fPPn+stVjyqzmsqRJVDfB9fo5DA==",
"license": "MIT",
"dependencies": {
"@noble/ciphers": "^1.0.0",
"@noble/hashes": "^1.6.0",
"fontkit": "^2.0.4",
"js-md5": "^0.8.3",
"linebreak": "^1.1.0",
"png-js": "^1.1.0"
}
},
"node_modules/piccolore": {
"version": "0.1.3",
"resolved": "https://registry.npmjs.org/piccolore/-/piccolore-0.1.3.tgz",
@@ -5736,6 +5875,14 @@
"url": "https://github.com/sponsors/jonschlinkert"
}
},
"node_modules/png-js": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/png-js/-/png-js-1.1.0.tgz",
"integrity": "sha512-PM/uYGzGdNSzqeOgly68+6wKQDL1SY0a/N+OEa/+br6LnHWOAJB0Npiamnodfq3jd2LS/i2fMeOKSAILjA+m5Q==",
"dependencies": {
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}
},
"node_modules/postcss": {
"version": "8.5.16",
"resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.16.tgz",
@@ -6216,6 +6363,12 @@
"url": "https://github.com/privatenumber/resolve-pkg-maps?sponsor=1"
}
},
"node_modules/restructure": {
"version": "3.0.2",
"resolved": "https://registry.npmjs.org/restructure/-/restructure-3.0.2.tgz",
"integrity": "sha512-gSfoiOEA0VPE6Tukkrr7I0RBdE0s7H1eFCDBk05l1KIQT1UIKNc5JZy6jdyW6eYH3aR3g5b3PuL77rq0hvwtAw==",
"license": "MIT"
},
"node_modules/retext-smartypants": {
"version": "6.2.0",
"resolved": "https://registry.npmjs.org/retext-smartypants/-/retext-smartypants-6.2.0.tgz",
@@ -6782,8 +6935,7 @@
"version": "2.8.1",
"resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
"integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
"license": "0BSD",
"optional": true
"license": "0BSD"
},
"node_modules/tunnel-agent": {
"version": "0.6.0",
@@ -6853,6 +7005,32 @@
"devOptional": true,
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"dependencies": {
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