Fix ppt

server/Dockerfile

@@ -2,7 +2,8 @@ FROM node:22-alpine
 
 WORKDIR /app
 
-RUN apk add --no-cache python3 make g++
+# Build dependencies + LibreOffice for legacy Office format conversion
+RUN apk add --no-cache python3 make g++ libreoffice curl
 
 COPY package*.json ./
 RUN npm install

server/package-lock.json

@@ -18,7 +18,6 @@
         "jwks-rsa": "^3.1.0",
         "multer": "^2.0.2",
         "officeparser": "^6.0.4",
-        "ppt": "^0.0.2",
         "stripe": "^20.2.0",
         "uuid": "^11.0.5",
         "word-extractor": "^1.0.4",
@@ -1209,15 +1208,6 @@
         "node": ">=0.8"
       }
     },
-    "node_modules/commander": {
-      "version": "14.0.2",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.2.tgz",
-      "integrity": "sha512-TywoWNNRbhoD0BXs1P3ZEScW8W5iKrnbithIl0YH+uCmBd0QpPOA8yc82DS3BIE5Ma6FnBVUsJ7wVUDz4dvOWQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=20"
-      }
-    },
     "node_modules/concat-stream": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-2.0.0.tgz",
@@ -2542,40 +2532,6 @@
       "integrity": "sha512-F3asv42UuXchdzt+xXqfW1OGlVBe+mxa2mqI0pg5yAHZPvFmY3Y6drSf/GQ1A86WgWEN9Kzh/WrgKa6iGcHXLg==",
       "license": "MIT"
     },
-    "node_modules/ppt": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/ppt/-/ppt-0.0.2.tgz",
-      "integrity": "sha512-qhII2wLFquh/rSJ4UBfywFHKmKy3PoZb7GvWhRAaHHKoVP7rfNZQldAHIgc5gD4s1cSBSBfedZYEY0m+vYYI5A==",
-      "license": "Apache-2.0",
-      "dependencies": {
-        "cfb": ">=0.10.0",
-        "codepage": "~1.3.4",
-        "commander": ""
-      },
-      "bin": {
-        "ppt": "bin/ppt.njs"
-      },
-      "engines": {
-        "node": ">=0.8"
-      }
-    },
-    "node_modules/ppt/node_modules/codepage": {
-      "version": "1.3.8",
-      "resolved": "https://registry.npmjs.org/codepage/-/codepage-1.3.8.tgz",
-      "integrity": "sha512-cjAoQW5L/TCKWRbzt/xGBvhwJKQFhcIVO0jWQtpKQx4gr9qvXNkpRfq6gSmjjA8dB2Is/DPOb7gNwqQXP7UgTQ==",
-      "license": "Apache-2.0",
-      "dependencies": {
-        "commander": "",
-        "concat-stream": "",
-        "voc": ""
-      },
-      "bin": {
-        "codepage": "bin/codepage.njs"
-      },
-      "engines": {
-        "node": ">=0.8"
-      }
-    },
     "node_modules/prebuild-install": {
       "version": "7.1.3",
       "resolved": "https://registry.npmjs.org/prebuild-install/-/prebuild-install-7.1.3.tgz",
@@ -3277,18 +3233,6 @@
         "node": ">= 0.8"
       }
     },
-    "node_modules/voc": {
-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/voc/-/voc-1.2.0.tgz",
-      "integrity": "sha512-BOuDjFFYvJdZO6e/N65AlaDItXo2TgyLjeyRYcqgAPkXpp5yTJcvkL2n+syO1r9Qc5g96tfBD2tuiMhYDmaGcA==",
-      "license": "Apache-2.0",
-      "bin": {
-        "voc": "voc.njs"
-      },
-      "engines": {
-        "node": ">=0.8"
-      }
-    },
     "node_modules/wasm-feature-detect": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/wasm-feature-detect/-/wasm-feature-detect-1.8.0.tgz",

server/package.json

@@ -21,7 +21,6 @@
     "jwks-rsa": "^3.1.0",
     "multer": "^2.0.2",
     "officeparser": "^6.0.4",
-    "ppt": "^0.0.2",
     "stripe": "^20.2.0",
     "uuid": "^11.0.5",
     "word-extractor": "^1.0.4",

server/src/services/documentParser.ts

@@ -1,8 +1,8 @@
 import officeParser from 'officeparser';
 import WordExtractor from 'word-extractor';
 import * as XLSX from 'xlsx';
-import PPT from 'ppt';
+import { execSync } from 'child_process';
-import { writeFileSync, unlinkSync } from 'fs';
+import { writeFileSync, readFileSync, unlinkSync, existsSync } from 'fs';
 import { tmpdir } from 'os';
 import { join } from 'path';
 import { randomUUID } from 'crypto';
@@ -199,20 +199,70 @@ function extractWithSheetJS(buffer: Buffer): string {
   return textParts.join('\n\n');
 }
 
-function extractWithSheetJSPPT(buffer: Buffer): string {
+// Map legacy extensions to their modern equivalents for LibreOffice conversion
-  // PPT library requires file path due to CFB API compatibility issues
+const LEGACY_TO_MODERN: Record<string, string> = {
-  const tempPath = join(tmpdir(), `ppt-${randomUUID()}.ppt`);
+  '.ppt': 'pptx',
+  '.doc': 'docx', 
+  '.xls': 'xlsx',
+};
+
+async function extractWithLibreOffice(buffer: Buffer, extension: string, useOcr: boolean = false): Promise<string> {
+  // Use LibreOffice to convert legacy Office files to modern format, then parse
+  const tempId = randomUUID();
+  const tempDir = tmpdir();
+  const inputPath = join(tempDir, `input-${tempId}${extension}`);
+  const modernExt = LEGACY_TO_MODERN[extension] || 'pdf';
+  const outputPath = join(tempDir, `input-${tempId}.${modernExt}`);
+  
   try {
-    writeFileSync(tempPath, buffer);
+    // Write input file
-    const pres = PPT.readFile(tempPath);
+    writeFileSync(inputPath, buffer);
-    const textArray = PPT.utils.to_text(pres);
+    
-    return textArray.join('\n\n');
+    // Convert to modern format using LibreOffice
-  } finally {
     try {
-      unlinkSync(tempPath);
+      execSync(
-    } catch {
+        `libreoffice --headless --convert-to ${modernExt} --outdir "${tempDir}" "${inputPath}"`,
-      // Ignore cleanup errors
+        { timeout: 60000, stdio: 'pipe' }
+      );
+    } catch (execError) {
+      // LibreOffice not available or conversion failed
+      const error = execError as Error & { code?: string };
+      if (error.code === 'ENOENT' || error.message?.includes('not found')) {
+        throw new Error(
+          `Legacy ${extension} files require LibreOffice for text extraction. ` +
+          `Please convert to .${modernExt} format or ensure LibreOffice is installed.`
+        );
+      }
+      throw new Error(`LibreOffice conversion failed: ${error.message}`);
     }
+    
+    // Read the converted file and extract text using officeparser (with OCR if enabled)
+    if (existsSync(outputPath)) {
+      const convertedBuffer = readFileSync(outputPath);
+      const config = useOcr ? {
+        extractAttachments: true,
+        ocr: true,
+        ocrLanguage: 'eng'
+      } : {};
+      const ast = await officeParser.parseOffice(convertedBuffer, config);
+      let text = ast.toText();
+      
+      // Include OCR text from attachments if available
+      if (useOcr && ast.attachments) {
+        for (const attachment of ast.attachments) {
+          if (attachment.ocrText) {
+            text += '\n' + attachment.ocrText;
+          }
+        }
+      }
+      return text;
+    }
+    
+    throw new Error('LibreOffice conversion produced no output');
+  } finally {
+    // Cleanup temp files
+    try { unlinkSync(inputPath); } catch { /* ignore */ }
+    try { unlinkSync(outputPath); } catch { /* ignore */ }
   }
 }
 
@@ -274,9 +324,9 @@ export async function processDocument(
     };
   }
 
-  // Legacy .ppt files (PowerPoint 97-2003)
+  // Legacy .ppt files (PowerPoint 97-2003) - use LibreOffice for conversion
   if (needsSheetJSPPT(mimeType)) {
-    const text = extractWithSheetJSPPT(buffer);
+    const text = await extractWithLibreOffice(buffer, '.ppt', options.useOcr);
     return {
       type: 'text',
       content: text,

server/src/types/legacy-office.d.ts

@@ -1,31 +0,0 @@
-// Type declarations for legacy Office format parsers
-
-declare module 'ppt' {
-  interface PPTPresentation {
-    docs: Array<{
-      slideList: string[];
-    }>;
-    slides: Array<{
-      drawing: {
-        groupShape: Array<{
-          clientTextbox?: {
-            t: string;
-          };
-        }>;
-      };
-    }>;
-  }
-
-  interface PPTUtils {
-    to_text(pres: PPTPresentation): string[];
-  }
-
-  interface PPTModule {
-    version: string;
-    readFile(filename: string, opts?: { WTF?: number; dump?: number }): PPTPresentation;
-    utils: PPTUtils;
-  }
-
-  const PPT: PPTModule;
-  export default PPT;
-}