使用PDF Vector AI从文档中提取和验证法律引用

• •Google Drive API 凭证

{
  "meta": {
    "instanceId": "placeholder"
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  "nodes": [
    {
      "id": "manual-trigger",
      "name": "手动触发器",
      "type": "n8n-nodes-base.manualTrigger",
      "notes": "Start citation extraction",
      "position": [
        250,
        300
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "google-drive",
      "name": "Google Drive - 获取法律文档",
      "type": "n8n-nodes-base.googleDrive",
      "notes": "Retrieve document from Drive",
      "position": [
        450,
        300
      ],
      "parameters": {
        "fileId": "={{ $json.fileId }}",
        "operation": "download"
      },
      "typeVersion": 3
    },
    {
      "id": "pdfvector-extract",
      "name": "PDF向量 - 提取引用",
      "type": "n8n-nodes-pdfvector.pdfVector",
      "notes": "Extract all citations",
      "position": [
        650,
        300
      ],
      "parameters": {
        "prompt": "Extract all legal citations from this document or image. Include case citations (with reporter and year), statute citations (with title and section), regulatory citations, and academic citations (with author, title, journal, and year). For each citation, include the surrounding context (1-2 sentences) and page number where it appears. Use OCR if this is a scanned legal document or image.",
        "schema": "{\"type\":\"object\",\"properties\":{\"documentInfo\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"},\"documentType\":{\"type\":\"string\"},\"court\":{\"type\":\"string\"},\"date\":{\"type\":\"string\"},\"docketNumber\":{\"type\":\"string\"}}},\"caseCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"caseName\":{\"type\":\"string\"},\"reporter\":{\"type\":\"string\"},\"volume\":{\"type\":\"string\"},\"page\":{\"type\":\"string\"},\"year\":{\"type\":\"string\"},\"court\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"},\"pinCite\":{\"type\":\"string\"}}}},\"statuteCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"},\"code\":{\"type\":\"string\"},\"section\":{\"type\":\"string\"},\"subsection\":{\"type\":\"string\"},\"year\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}},\"regulatoryCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"},\"agency\":{\"type\":\"string\"},\"section\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}},\"academicCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"authors\":{\"type\":\"string\"},\"title\":{\"type\":\"string\"},\"journal\":{\"type\":\"string\"},\"volume\":{\"type\":\"string\"},\"page\":{\"type\":\"string\"},\"year\":{\"type\":\"string\"},\"doi\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}},\"otherCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"text\":{\"type\":\"string\"},\"type\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}}},\"required\":[\"documentInfo\"],\"additionalProperties\":false}",
        "resource": "document",
        "inputType": "file",
        "operation": "extract",
        "binaryPropertyName": "data"
      },
      "typeVersion": 1
    },
    {
      "id": "analyze-citations",
      "name": "分析与验证引用",
      "type": "n8n-nodes-base.code",
      "notes": "Process citation data",
      "position": [
        850,
        300
      ],
      "parameters": {
        "jsCode": "// Process and validate citations\nconst citations = $input.first().json.data;\nconst citationAnalysis = {\n  summary: {\n    totalCitations: 0,\n    caseLaw: citations.caseCitations?.length || 0,\n    statutes: citations.statuteCitations?.length || 0,\n    regulations: citations.regulatoryCitations?.length || 0,\n    academic: citations.academicCitations?.length || 0,\n    other: citations.otherCitations?.length || 0\n  },\n  validation: {\n    invalidCitations: [],\n    warnings: []\n  },\n  academicDOIs: [],\n  citationNetwork: {}\n};\n\n// Calculate total\ncitationAnalysis.summary.totalCitations = \n  citationAnalysis.summary.caseLaw + \n  citationAnalysis.summary.statutes + \n  citationAnalysis.summary.regulations + \n  citationAnalysis.summary.academic + \n  citationAnalysis.summary.other;\n\n// Validate case citations\nif (citations.caseCitations) {\n  citations.caseCitations.forEach((cite, index) => {\n    // Check for required fields\n    if (!cite.reporter || !cite.volume || !cite.page) {\n      citationAnalysis.validation.invalidCitations.push({\n        type: 'case',\n        index,\n        citation: cite.caseName,\n        issue: 'Missing reporter, volume, or page'\n      });\n    }\n    \n    // Build citation network (track which cases cite which)\n    if (!citationAnalysis.citationNetwork[cite.caseName]) {\n      citationAnalysis.citationNetwork[cite.caseName] = {\n        citedIn: [citations.documentInfo.title],\n        pageNumbers: [cite.pageNumber]\n      };\n    }\n  });\n}\n\n// Validate statute citations\nif (citations.statuteCitations) {\n  citations.statuteCitations.forEach((cite, index) => {\n    if (!cite.title || !cite.section) {\n      citationAnalysis.validation.invalidCitations.push({\n        type: 'statute',\n        index,\n        citation: `${cite.title} ${cite.code}`,\n        issue: 'Missing title or section'\n      });\n    }\n  });\n}\n\n// Extract DOIs for academic fetching\nif (citations.academicCitations) {\n  citations.academicCitations.forEach(cite => {\n    if (cite.doi) {\n      citationAnalysis.academicDOIs.push(cite.doi);\n    } else {\n      // Try to construct search query for papers without DOI\n      citationAnalysis.validation.warnings.push({\n        type: 'academic',\n        citation: cite.title,\n        warning: 'No DOI found - manual search may be needed'\n      });\n    }\n  });\n}\n\n// Analyze citation patterns\nconst citationPatterns = {\n  mostCitedCases: [],\n  primaryAuthorities: [],\n  secondaryAuthorities: []\n};\n\n// Identify primary authorities (statutes and binding cases)\ncitationPatterns.primaryAuthorities = [\n  ...citations.statuteCitations?.map(c => `${c.title} ${c.code} § ${c.section}`) || [],\n  ...citations.caseCitations?.filter(c => c.court?.includes('Supreme'))?.map(c => c.caseName) || []\n];\n\n// Identify secondary authorities\ncitationPatterns.secondaryAuthorities = \n  citations.academicCitations?.map(c => `${c.authors}, ${c.title}`) || [];\n\nreturn [{\n  json: {\n    originalData: citations,\n    analysis: citationAnalysis,\n    patterns: citationPatterns,\n    doisToFetch: citationAnalysis.academicDOIs.join(','),\n    processedAt: new Date().toISOString()\n  }\n}];"
      },
      "typeVersion": 1
    },
    {
      "id": "has-dois",
      "name": "是否有学术DOI？",
      "type": "n8n-nodes-base.if",
      "position": [
        1050,
        300
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{ $json.doisToFetch }}",
              "operation": "isNotEmpty"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "pdfvector-fetch",
      "name": "PDF向量 - 获取论文",
      "type": "n8n-nodes-pdfvector.pdfVector",
      "notes": "Retrieve academic papers",
      "position": [
        1250,
        250
      ],
      "parameters": {
        "ids": "={{ $json.doisToFetch }}",
        "fields": [
          "title",
          "abstract",
          "authors",
          "year",
          "doi",
          "pdfURL",
          "totalCitations"
        ],
        "resource": "academic",
        "operation": "fetch"
      },
      "typeVersion": 1
    },
    {
      "id": "generate-report",
      "name": "生成引用报告",
      "type": "n8n-nodes-base.code",
      "notes": "Create final report",
      "position": [
        1450,
        300
      ],
      "parameters": {
        "jsCode": "// Generate comprehensive citation report\nconst citationData = $node['Has Academic DOIs?'].json;\nconst academicPapers = $json.publications || [];\n\n// Create citation report\nlet report = `# Legal Citation Analysis Report\\n\\n`;\nreport += `**Document:** ${citationData.originalData.documentInfo.title}\\n`;\nreport += `**Type:** ${citationData.originalData.documentInfo.documentType}\\n`;\nreport += `**Date:** ${citationData.originalData.documentInfo.date}\\n\\n`;\n\nreport += `## Citation Summary\\n\\n`;\nreport += `- **Total Citations:** ${citationData.analysis.summary.totalCitations}\\n`;\nreport += `- **Case Law:** ${citationData.analysis.summary.caseLaw}\\n`;\nreport += `- **Statutes:** ${citationData.analysis.summary.statutes}\\n`;\nreport += `- **Regulations:** ${citationData.analysis.summary.regulations}\\n`;\nreport += `- **Academic:** ${citationData.analysis.summary.academic}\\n`;\nreport += `- **Other:** ${citationData.analysis.summary.other}\\n\\n`;\n\n// Add validation issues\nif (citationData.analysis.validation.invalidCitations.length > 0) {\n  report += `## Citation Issues\\n\\n`;\n  citationData.analysis.validation.invalidCitations.forEach(issue => {\n    report += `- **${issue.type}:** ${issue.citation} - ${issue.issue}\\n`;\n  });\n  report += `\\n`;\n}\n\n// Add case law section\nif (citationData.originalData.caseCitations?.length > 0) {\n  report += `## Case Law Citations\\n\\n`;\n  citationData.originalData.caseCitations.forEach(cite => {\n    report += `### ${cite.caseName}\\n`;\n    report += `- **Citation:** ${cite.volume} ${cite.reporter} ${cite.page} (${cite.year})\\n`;\n    report += `- **Court:** ${cite.court || 'Not specified'}\\n`;\n    report += `- **Context:** ${cite.context}\\n`;\n    report += `- **Page:** ${cite.pageNumber}\\n\\n`;\n  });\n}\n\n// Add statute section\nif (citationData.originalData.statuteCitations?.length > 0) {\n  report += `## Statutory Citations\\n\\n`;\n  citationData.originalData.statuteCitations.forEach(cite => {\n    report += `- **${cite.title} ${cite.code} § ${cite.section}**${cite.subsection ? ` (${cite.subsection})` : ''}\\n`;\n    report += `  - Context: ${cite.context}\\n`;\n    report += `  - Page: ${cite.pageNumber}\\n\\n`;\n  });\n}\n\n// Add academic section with fetched data\nif (citationData.originalData.academicCitations?.length > 0) {\n  report += `## Academic Citations\\n\\n`;\n  citationData.originalData.academicCitations.forEach(cite => {\n    report += `### ${cite.title}\\n`;\n    report += `- **Authors:** ${cite.authors}\\n`;\n    report += `- **Journal:** ${cite.journal}, Vol. ${cite.volume}, p. ${cite.page} (${cite.year})\\n`;\n    \n    // Add fetched paper data if available\n    const fetchedPaper = academicPapers.find(p => p.doi === cite.doi);\n    if (fetchedPaper) {\n      report += `- **Citations:** ${fetchedPaper.totalCitations || 0}\\n`;\n      report += `- **Abstract Available:** Yes\\n`;\n      if (fetchedPaper.pdfURL) {\n        report += `- **Full Text:** [Available](${fetchedPaper.pdfURL})\\n`;\n      }\n    }\n    \n    report += `- **Context:** ${cite.context}\\n`;\n    report += `- **Page:** ${cite.pageNumber}\\n\\n`;\n  });\n}\n\n// Add citation patterns\nreport += `## Citation Analysis\\n\\n`;\nreport += `### Primary Authorities\\n`;\ncitationData.patterns.primaryAuthorities.forEach(auth => {\n  report += `- ${auth}\\n`;\n});\nreport += `\\n### Secondary Authorities\\n`;\ncitationData.patterns.secondaryAuthorities.forEach(auth => {\n  report += `- ${auth}\\n`;\n});\n\nreturn [{\n  json: {\n    report,\n    citationData,\n    academicPapers,\n    exportFormat: 'markdown',\n    generatedAt: new Date().toISOString()\n  }\n}];"
      },
      "typeVersion": 1
    },
    {
      "id": "save-report",
      "name": "保存引用报告",
      "type": "n8n-nodes-base.writeBinaryFile",
      "notes": "Export report",
      "position": [
        1650,
        300
      ],
      "parameters": {
        "fileName": "citation_report_{{ $now.format('yyyy-MM-dd_HH-mm') }}.md",
        "fileContent": "={{ $json.report }}"
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "Manual Trigger": {
      "main": [
        [
          {
            "node": "Google Drive - Get Legal Document",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Has Academic DOIs?": {
      "main": [
        [
          {
            "node": "PDF Vector - Fetch Papers",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Generate Citation Report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate Citation Report": {
      "main": [
        [
          {
            "node": "Save Citation Report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "PDF Vector - Fetch Papers": {
      "main": [
        [
          {
            "node": "Generate Citation Report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Analyze & Validate Citations": {
      "main": [
        [
          {
            "node": "Has Academic DOIs?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "PDF Vector - Extract Citations": {
      "main": [
        [
          {
            "node": "Analyze & Validate Citations",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Drive - Get Legal Document": {
      "main": [
        [
          {
            "node": "PDF Vector - Extract Citations",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}