Google Driveファイル権限の審査によるアクセス制御管理

上級

これはIT Ops, SecOps分野の自動化ワークフローで、19個のノードを含みます。主にSet, Gmail, Filter, SplitOut, Aggregateなどのノードを使用。 Google Drive ファイルの権限を監査し、アクセス制御管理を実施

前提条件
  • Googleアカウント + Gmail API認証情報
  • Google Drive API認証情報
  • Google Sheets API認証情報
ワークフロープレビュー
ノード接続関係を可視化、ズームとパンをサポート
ワークフローをエクスポート
以下のJSON設定をn8nにインポートして、このワークフローを使用できます
{
  "meta": {
    "instanceId": "408f9fb9940c3cb18ffdef0e0150fe342d6e655c3a9fac21f0f644e8bedabcd9",
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "f8f5a571-c4de-469e-a182-faa60060d06b",
      "name": "外部ユーザーと共有済み",
      "type": "n8n-nodes-base.filter",
      "position": [
        40,
        -220
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "or",
          "conditions": [
            {
              "id": "c72e9718-b50a-4c5f-8a26-7b3fda89e202",
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              },
              "leftValue": "={{ $json.shared && $json.permissions.some(item => item.emailAddress ? !item.emailAddress.endsWith('example.com') : false)  }}",
              "rightValue": ""
            },
            {
              "id": "0479b4ae-fc0c-49c4-8813-6978ea55265a",
              "operator": {
                "type": "object",
                "operation": "exists",
                "singleValue": true
              },
              "leftValue": "={{ $json.permissions.find(item => item.type === 'anyone') }}",
              "rightValue": ""
            }
          ]
        }
      },
      "typeVersion": 2.2
    },
    {
      "id": "14b6d453-0403-476a-8537-cdeeace70115",
      "name": "新規シート作成",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        -620,
        -220
      ],
      "parameters": {
        "title": "=audit-{{ $now.format('yyyyMMdd') }}",
        "options": {},
        "operation": "create",
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "1V2aiLhp3_nH7EBniMn7D0kFHg7-A5NjpDZXMhb4F5UI",
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/1V2aiLhp3_nH7EBniMn7D0kFHg7-A5NjpDZXMhb4F5UI/edit?usp=drivesdk",
          "cachedResultName": "94. Gdrive Permissions Audit - Personal"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "XHvC7jIRR8A2TlUl",
          "name": "Google Sheets account"
        }
      },
      "typeVersion": 4.5,
      "alwaysOutputData": true
    },
    {
      "id": "394b91b3-0c70-40d5-8d48-4df6109780e7",
      "name": "フィールド正規化",
      "type": "n8n-nodes-base.set",
      "position": [
        1140,
        -140
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "1d2f091f-7740-47d1-9bf4-91cb620ffb1f",
              "name": "file_id",
              "type": "string",
              "value": "={{ $('File Ref').item.json.id }}"
            },
            {
              "id": "b7836ed5-7b14-436f-aa5b-be8a6c7f2957",
              "name": "file_name",
              "type": "string",
              "value": "={{ $('File Ref').item.json.name }}"
            },
            {
              "id": "b1d59c01-17d9-4d0b-b0f4-1593e47f968f",
              "name": "type",
              "type": "string",
              "value": "={{ $json.type }}"
            },
            {
              "id": "37f50a02-c780-49b3-ad8a-0d934566c770",
              "name": "user_id",
              "type": "string",
              "value": "={{ $json.id }}"
            },
            {
              "id": "e16c385f-2ad2-484b-99a4-9021f77b6875",
              "name": "user",
              "type": "string",
              "value": "={{ $json.emailAddress || 'n/a' }}"
            },
            {
              "id": "3c825d9e-494c-4500-b04d-d9577c0d5f44",
              "name": "role",
              "type": "string",
              "value": "={{ $json.role }}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "74a7ca8b-3ad4-470e-8c4d-b2e3cb721c27",
      "name": "ファイルごとに処理",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        440,
        -140
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 3
    },
    {
      "id": "da0e4e55-9ffa-4939-acf3-a743ade6b3eb",
      "name": "ファイル参照",
      "type": "n8n-nodes-base.noOp",
      "position": [
        620,
        -140
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "26e0f66a-88d7-46df-94e5-127158c47191",
      "name": "アイテムへの権限",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        780,
        -140
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "permissions"
      },
      "typeVersion": 1
    },
    {
      "id": "5ed23aa6-1d9f-486c-ab56-4cb1144cdba9",
      "name": "集計",
      "type": "n8n-nodes-base.aggregate",
      "position": [
        1320,
        -60
      ],
      "parameters": {
        "options": {},
        "aggregate": "aggregateAllItemData"
      },
      "typeVersion": 1
    },
    {
      "id": "b7308c98-b50a-42ee-80ae-5a4beea0a654",
      "name": "行の平坦化",
      "type": "n8n-nodes-base.set",
      "position": [
        1600,
        -280
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "c23193c9-b348-493a-9a7b-fd737cfb656f",
              "name": "=rows",
              "type": "array",
              "value": "={{\n$input.all().flatMap(item => item.json.data)\n}}"
            }
          ]
        }
      },
      "executeOnce": true,
      "typeVersion": 3.4
    },
    {
      "id": "d18606d0-501e-4f2b-9456-a60497dd5574",
      "name": "行からアイテムへ",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        1800,
        -280
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "rows"
      },
      "typeVersion": 1
    },
    {
      "id": "66daa856-b047-4396-8b64-29346bdb08a0",
      "name": "メールレポート送信(1回実行)",
      "type": "n8n-nodes-base.gmail",
      "position": [
        2200,
        -280
      ],
      "webhookId": "39eabb13-1a20-412f-bf61-d3c40d875f76",
      "parameters": {
        "sendTo": "jim@example.com",
        "message": "=Hello,\nHere is the current Google Drive Permissions Audit for {{ $now.format('yyyy-MM-dd') }}.\n\nSee the full report here - [Audit Gsheet](https://docs.google.com/spreadsheets/d/{{ $('Create New Sheet').first().json.spreadsheetId}}/edit?gid={{ $('Create New Sheet').first().json.sheetId}})\n\n## Shared with Anyone (Public Link)\n{{\n$input.all().map(item => item.json)\n  .filter(row => row.type === 'anyone')\n  .map(row => `* ${row.file_name} ([link](https://docs.google.com/spreadsheets/d/${row.file_id}/edit?usp=sharing))`)\n  .join('\\n')\n}}\n\n## Shared with External Users (By Invite)\n{{\n$input.all().map(item => item.json)\n  .filter(row => row.type == 'user')\n  .map(row => `* ${row.file_name} ([link](https://docs.google.com/spreadsheets/d/${row.file_id}/edit?usp=sharing))`)\n  .join('\\n')\n}}\n\nPlease review if permissions for these documents need to be updated.\n\nBest regards,\nN8N Gdrive Permissions Audit Workflow",
        "options": {
          "appendAttribution": true
        },
        "subject": "=GDrive Audit for {{ $now.format('yyyy-MM-dd') }}",
        "emailType": "text"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "Sf5Gfl9NiFTNXFWb",
          "name": "Gmail account"
        }
      },
      "executeOnce": true,
      "typeVersion": 2.1
    },
    {
      "id": "41c2e73e-17cf-4d31-99fe-9c8c3b3d1a97",
      "name": "最近アクティブなドキュメント取得",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        -200,
        -220
      ],
      "parameters": {
        "filter": {
          "driveId": {
            "mode": "list",
            "value": "My Drive"
          },
          "fileTypes": [
            "application/vnd.google-apps.document",
            "application/vnd.google-apps.spreadsheet",
            "application/vnd.google-apps.presentation"
          ],
          "whatToSearch": "all"
        },
        "options": {
          "fields": [
            "permissions",
            "shared",
            "name",
            "id",
            "kind",
            "mimeType"
          ]
        },
        "resource": "fileFolder",
        "queryString": "=modifiedTime > '{{ $now.minus({ 'days': 1 })}}' and trashed = false",
        "searchMethod": "query"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "yOwz41gMQclOadgu",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "68d83b74-be18-4b2e-8422-2fc9ec6a4b90",
      "name": "付箋",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -980,
        -500
      ],
      "parameters": {
        "color": 7,
        "width": 600,
        "height": 520,
        "content": "## 1. Scheduled Trigger to Audit Everyday\n[Read more about the Scheduled Trigger node](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.scheduletrigger)\n\nThe Scheduled Trigger is used to automate this workflow at a frequency which meets your data access auditing requirements. Here we've set it to run everyday and for each run a new Google Sheet is created to capture the results of the audit.\n\nCheck out the example Sheet here: https://docs.google.com/spreadsheets/d/1V2aiLhp3_nH7EBniMn7D0kFHg7-A5NjpDZXMhb4F5UI/edit?gid=503992967"
      },
      "typeVersion": 1
    },
    {
      "id": "c5416a4f-4fae-405d-ac41-35193349d16f",
      "name": "スケジュールトリガー",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        -860,
        -220
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "triggerAtHour": 6
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "d3009d45-9a5d-445f-ad99-745f28b9f705",
      "name": "付箋1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -360,
        -500
      ],
      "parameters": {
        "color": 7,
        "width": 680,
        "height": 520,
        "content": "## 2. Identify Documents with Possible Access Control Risks\n[Learn more about Gdrive node](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.googledrive)\n\nFile Sharing is powerful in Google Drive but we may grant excess permissions or visibility out of habit or to overcome access challenges. Though sometimes justified, often we forget to go back and reduce the permission scopes once the access has served its purpose.\n\nThis workflow fetches recently modified documents and takes note of the current permissions assigned to them. Those which are set to allow for anyone with a link or shared with external users can be flagged for review."
      },
      "typeVersion": 1
    },
    {
      "id": "dff3abeb-7ae1-4038-8a05-75bf7630b63e",
      "name": "付箋2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        340,
        -320
      ],
      "parameters": {
        "color": 7,
        "width": 1160,
        "height": 500,
        "content": "## 3. Aggregate Results into Rows\n[Read more about the Split Out node](https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.splitout)\n\nWith our list, we just need to convert them to rows which we can add to our audit sheet.\nWe can use a few of n8n's data transformation nodes to complete this task."
      },
      "typeVersion": 1
    },
    {
      "id": "c88f5d67-9712-4f08-bd2f-7ea9056b8640",
      "name": "付箋3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1520,
        -480
      ],
      "parameters": {
        "color": 7,
        "width": 880,
        "height": 460,
        "content": "## 4. Logs Results and Send Audit Report via Email\n[Read more about the Gmail node](https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.gmail/)\n\nFinally, we'll log the identified documents to our google sheet and send a report via email.\nAlternatively, you may send to other security observability software or your security team."
      },
      "typeVersion": 1
    },
    {
      "id": "c9ef29d8-d126-4aff-96a9-26c79483bc16",
      "name": "ドキュメント所有者を除外",
      "type": "n8n-nodes-base.filter",
      "position": [
        960,
        -140
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "310d287a-cab3-4a94-8aa5-615a1fcb970a",
              "operator": {
                "type": "string",
                "operation": "notEquals"
              },
              "leftValue": "={{ $json.role }}",
              "rightValue": "owner"
            }
          ]
        }
      },
      "typeVersion": 2.2,
      "alwaysOutputData": false
    },
    {
      "id": "1185fbd0-7632-4ea9-8648-7fcba63d1565",
      "name": "新規シートに追加",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        2000,
        -280
      ],
      "parameters": {
        "columns": {
          "value": {},
          "schema": [
            {
              "id": "file_id",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "file_id",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "file_name",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "file_name",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "type",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "type",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "user_id",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "user_id",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "user",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "user",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "role",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "role",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            }
          ],
          "mappingMode": "autoMapInputData",
          "matchingColumns": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "append",
        "sheetName": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $('Create New Sheet').first().json.sheetId }}"
        },
        "documentId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $('Create New Sheet').first().json.spreadsheetId }}"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "XHvC7jIRR8A2TlUl",
          "name": "Google Sheets account"
        }
      },
      "typeVersion": 4.5
    },
    {
      "id": "5755749e-16c1-43b0-ba14-76e593cd3404",
      "name": "付箋4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1480,
        -1060
      ],
      "parameters": {
        "width": 440,
        "height": 1260,
        "content": "## Try It Out!\n### This n8n template reviews and audits recently active Google Drive files and reports on files with excessively open permissions. This shows how you can automate simple SecOp tasks for access control management.\n\nFile Sharing Permissions are routinely abused when access needs and scopes expand to many colleagues, clients and users. Often, granting excessively open permissions means you can get back to work rather than deal with numerous access request notifications. Whilst sometimes justified, the problem is that the permissions are rarely reverted to a safer setting at a later date when it is no longer needed.\n\nThis template serves to improve your security posture by giving frequent reminders of these open files so that they can be actioned and not forgotten about.\n\nSee example Audit Report here: [https://docs.google.com/spreadsheets/d/1V2aiLhp3_nH7EBniMn7D0kFHg7-A5NjpDZXMhb4F5UI/edit?gid=503992967](https://docs.google.com/spreadsheets/d/1V2aiLhp3_nH7EBniMn7D0kFHg7-A5NjpDZXMhb4F5UI/edit?gid=503992967)\n\n### How it works\n* A scheduled trigger runs everyday to generate a new audit report. A new sheet is created in a designated Google Sheets document to store the day's results.\n* The Google Drive node is used with Advanced Search params to fetch recently modified files for the user with each file result containing the current permission settings.\n* The results are filtered for those with publicly accessible \"anyone with link\" and sharing with external users via domain.\n* The results are then manipulated into rows so that we can append them to the Sheet we created earlier.\n* The audit Google Sheet is updated with the results and an audit report is sent to the user to action.\n\n### How to use\n* Set the scheduled trigger to a more appropriate interval which works for you or your organisation.\n* Consider using allowlists for organisations you frequently share with to reduce the number of false positives.\n* The results can be forwarded to other security or analytical products as required.\n\n### Requirements\n* Google Drive for Document Management\n* Google Sheet for Reports and Data Collection\n* Gmail to Email Reports\n\n### Customising the workflow\n* Not using Google? Apply the same approach using Microsoft Sharepoint or Dropbox.\n\n\n### Need Help?\nJoin the [Discord](https://discord.com/invite/XPKeKXeB7d) or ask in the [Forum](https://community.n8n.io/)!\n\nHappy Hacking!"
      },
      "typeVersion": 1
    }
  ],
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    "41c2e73e-17cf-4d31-99fe-9c8c3b3d1a97": {
      "main": [
        [
          {
            "node": "f8f5a571-c4de-469e-a182-faa60060d06b",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "f8f5a571-c4de-469e-a182-faa60060d06b": {
      "main": [
        [
          {
            "node": "74a7ca8b-3ad4-470e-8c4d-b2e3cb721c27",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}
よくある質問

このワークフローの使い方は?

上記のJSON設定コードをコピーし、n8nインスタンスで新しいワークフローを作成して「JSONからインポート」を選択、設定を貼り付けて認証情報を必要に応じて変更してください。

このワークフローはどんな場面に適していますか?

上級 - IT運用, セキュリティ運用

有料ですか?

このワークフローは完全無料です。ただし、ワークフローで使用するサードパーティサービス(OpenAI APIなど)は別途料金が発生する場合があります。

ワークフロー情報
難易度
上級
ノード数19
カテゴリー2
ノードタイプ11
難易度説明

上級者向け、16ノード以上の複雑なワークフロー

作成者
Jimleuk

Jimleuk

@jimleuk

Freelance consultant based in the UK specialising in AI-powered automations. I work with select clients tackling their most challenging projects. For business enquiries, send me an email at hello@jimle.uk LinkedIn: https://www.linkedin.com/in/jimleuk/ X/Twitter: https://x.com/jimle_uk

外部リンク
n8n.ioで表示

このワークフローを共有

カテゴリー

カテゴリー: 34