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📄 Lecteur de champs de formulaire PDF

Sélectionne un PDF contenant des champs de formulaire pour en extraire les valeurs.

\n \n

\n \n\n\n","deleted",false,"label",[19],{"_33":34,"_13":19,"_35":36,"_37":-5,"_38":39,"_40":41,"_42":43,"_44":67,"_17":46,"_47":24,"_48":49,"_50":51,"_52":-5,"_64":68,"_18":69},{"_33":56,"_13":57,"_35":58,"_37":-5,"_38":39,"_40":59,"_42":43,"_44":60,"_17":61,"_47":62,"_48":63,"_50":51,"_52":-5,"_64":65,"_18":66},"55a974ff-ba4f-4d2a-920b-6c4c604dd8af","main.ts","e99e3afa-64d1-11f1-89de-1607ee4eb77e",5,["D",1781103996569],3,"http","import { PDFDocument } from \"npm:pdf-lib\";\nimport { Hono } from \"npm:hono\";\nimport { blob } from \"https://esm.town/v/std/blob\";\nimport { readFile } from \"https://esm.town/v/std/utils/index.ts\";\n\n// ── Helpers ───────────────────────────────────────────────────────────────────\n\nasync function extractFields(arrayBuffer: ArrayBuffer): Promise> {\n const pdfDoc = await PDFDocument.load(arrayBuffer);\n const form = pdfDoc.getForm();\n const result: Record = {};\n\n for (const field of form.getFields()) {\n const name = field.getName();\n try {\n const type = field.constructor.name;\n if (type === \"PDFTextField\") {\n result[name] = (field as any).getText() ?? \"\";\n } else if (type === \"PDFCheckBox\") {\n result[name] = (field as any).isChecked() ? \"✓\" : \"☐\";\n } else if (type === \"PDFRadioGroup\") {\n result[name] = (field as any).getSelected() ?? \"\";\n } else if (type === \"PDFDropdown\") {\n result[name] = (field as any).getSelected()?.join(\", \") ?? \"\";\n } else {\n result[name] = `[${type}]`;\n }\n } catch {\n result[name] = \"(erreur lecture)\";\n }\n }\n\n return result;\n}\n\n// ── App ───────────────────────────────────────────────────────────────────────\n\nconst app = new Hono();\n\n// GET / → formulaire HTML\napp.get(\"/\", async (c) => {\n const html = await readFile(\"/index.html\", import.meta.url);\n return c.html(html);\n});\n\n// POST /upload → stocke le PDF brut, retourne la clé blob\napp.post(\"/upload\", async (c) => {\n const contentType = c.req.header(\"Content-Type\") ?? \"\";\n if (!contentType.includes(\"application/pdf\")) {\n return c.json({ error: \"Content-Type doit être application/pdf\" }, 400);\n }\n\n const arrayBuffer = await c.req.arrayBuffer();\n if (!arrayBuffer.byteLength) {\n return c.json({ error: \"Body vide\" }, 400);\n }\n\n const key = `pdf-upload-${crypto.randomUUID()}`;\n // Blob storage attend un string | Blob | ArrayBuffer\n await blob.set(key, new Uint8Array(arrayBuffer));\n\n return c.json({ key });\n});\n\n// POST / → extrait les champs (form-data, JSON+pdfBase64, ou JSON+blobKey)\napp.post(\"/\", async (c) => {\n const contentType = c.req.header(\"Content-Type\") ?? \"\";\n let arrayBuffer: ArrayBuffer;\n\n if (contentType.includes(\"application/json\")) {\n let body: Record;\n try {\n body = await c.req.json();\n } catch {\n return c.json({ error: \"Body JSON invalide\" }, 400);\n }\n\n if (typeof body.dustFileId === \"string\" && body.dustFileId) {\n // ── Téléchargement depuis Dust ────────────────────────────────────────\n const dustWorkspaceId = body.dustWorkspaceId;\n if (typeof dustWorkspaceId !== \"string\" || !dustWorkspaceId) {\n return c.json({ error: \"Champ 'dustWorkspaceId' requis avec 'dustFileId'\" }, 400);\n }\n const dustApiKey = Deno.env.get(\"DUST_API_KEY\");\n if (!dustApiKey) {\n return c.json({ error: \"DUST_API_KEY non configuré sur le serveur\" }, 500);\n }\n const dustUrl = `https://dust.tt/api/v1/w/${dustWorkspaceId}/files/${body.dustFileId}`;\n const dustRes = await fetch(dustUrl, {\n headers: { Authorization: `Bearer ${dustApiKey}` },\n });\n if (!dustRes.ok) {\n const text = await dustRes.text().catch(() => \"\");\n return c.json({ error: `Dust API error ${dustRes.status}`, detail: text }, dustRes.status as any);\n }\n arrayBuffer = await dustRes.arrayBuffer();\n } else if (typeof body.blobKey === \"string\" && body.blobKey) {\n // ── Récupération depuis le blob storage ──────────────────────────────\n const stored = await blob.get(body.blobKey);\n if (!stored) {\n return c.json({ error: `Clé blob introuvable : ${body.blobKey}` }, 404);\n }\n arrayBuffer = await stored.arrayBuffer();\n // Suppression après lecture\n await blob.delete(body.blobKey);\n } else if (typeof body.pdfBase64 === \"string\" && body.pdfBase64) {\n // ── Décodage base64 ──────────────────────────────────────────────────\n const binaryString = atob(body.pdfBase64);\n const bytes = Uint8Array.from(binaryString, (c) => c.charCodeAt(0));\n arrayBuffer = bytes.buffer;\n } else {\n return c.json({ error: \"Champ 'dustFileId', 'blobKey' ou 'pdfBase64' requis\" }, 400);\n }\n } else {\n // ── multipart/form-data : champ \"pdf\" ────────────────────────────────\n const formData = await c.req.formData();\n const file = formData.get(\"pdf\") as File;\n if (!file) {\n return c.json({ error: \"Champ 'pdf' manquant\" }, 400);\n }\n arrayBuffer = await file.arrayBuffer();\n }\n\n const result = await extractFields(arrayBuffer);\n return c.json(result);\n});\n\napp.onError((err) => 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