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Telegram File Proxy

Encrypt Telegram file URLs for proxying through Cloudflare Worker
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Overview

This node encrypts Telegram file URLs to proxy them through a Cloudflare Worker. It takes a Telegram file ID, fetches the file path using Telegram's getFile API, constructs the file URL, encrypts it using AES-256-CBC with a provided key, and outputs an encrypted URL that can be used to access the file securely via the proxy. This is useful for securely accessing Telegram files through a proxy service, protecting the original file URL from direct exposure.

Use Case Examples

  1. Encrypting Telegram file URLs for secure proxy access in automation workflows.
  2. Using the node to fetch and encrypt file URLs for Telegram bots or integrations that require secure file handling.

Properties

Name Meaning
File ID Telegram file_id used to fetch the file path from Telegram's getFile API.

Output

JSON

  • encryptedUrl - The encrypted URL for accessing the Telegram file through the Cloudflare Worker proxy.
  • error - Error message if the node fails to process the file ID and continueOnFail is enabled.

Dependencies

  • Requires credentials with botToken, workerUrl, and aesKey for Telegram API access and encryption.

Troubleshooting

  • Ensure that the botToken, workerUrl, and aesKey credentials are correctly set and complete; missing or incorrect values will cause errors.
  • File ID must not be empty; an empty file ID will cause the node to throw an error.
  • The AES key must be exactly 32 bytes (256 bits); otherwise, the node will throw an error.
  • If the Telegram getFile API call fails, check the validity of the file ID and bot token.
  • If continueOnFail is enabled, errors for individual items will be output as error messages in the JSON output rather than stopping execution.

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