feat: Added Instagram direct download without using yt-dlp

[rjriajul]

This pull request introduces new functionality for downloading videos from Instagram by adding an Instagram downloader API configuration and implementing the necessary logic to support it. The most important changes include updates to the configuration files and the addition of a new method to handle Instagram links.

Configuration updates:

• bot/core/config_manager.py: Added INSTADL_API configuration parameter to store the Instagram downloader API URL.
• config_sample.py: Added a sample INSTADL_API configuration parameter for users to set their Instagram downloader API URL.

Functionality updates:

• bot/helper/mirror_leech_utils/download_utils/direct_link_generator.py: Added a new method instagram to fetch direct video download URLs from Instagram posts using the configured API.
• bot/helper/mirror_leech_utils/download_utils/direct_link_generator.py: Updated the direct_link_generator function to handle Instagram links by calling the new instagram method.

Summary by Sourcery

New Features:

• Adds support for downloading videos from Instagram directly using an external API.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request adds the functionality to download videos from Instagram by introducing a new Instagram downloader API configuration and implementing the necessary logic to support it. It includes updates to the configuration files and the addition of a new method to handle Instagram links.

Sequence diagram for Instagram direct link generation

sequenceDiagram
  participant User
  participant direct_link_generator
  participant instagram
  participant Config
  participant Instadownload API

  User->>direct_link_generator: Provides Instagram link
  direct_link_generator->>instagram: Calls instagram(link)
  instagram->>Config: Checks INSTADL_API
  alt INSTADL_API is not configured
    instagram-->>direct_link_generator: Raises DirectDownloadLinkException
  else INSTADL_API is configured
    instagram->>Instadownload API: GET /api/video?postUrl=link
    Instadownload API-->>instagram: Returns JSON response (videoUrl)
    alt status == success and videoUrl in data
      instagram-->>direct_link_generator: Returns videoUrl
    else
      instagram-->>direct_link_generator: Raises DirectDownloadLinkException
    end
  end
  direct_link_generator-->>User: Returns direct video URL

Loading

File-Level Changes

Change	Details	Files
Introduced a new configuration parameter for the Instagram downloader API.	Added INSTADL_API to store the Instagram downloader API URL. Added a sample INSTADL_API configuration parameter.	bot/core/config_manager.py config_sample.py
Implemented a new method to fetch direct video download URLs from Instagram posts.	Added an instagram method to handle Instagram links. Updated the direct_link_generator function to call the new instagram method.	bot/helper/mirror_leech_utils/download_utils/direct_link_generator.py

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[sourcery-ai]

Hey @rjriajul - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider adding input validation for the INSTADL_API configuration parameter to ensure it's a valid URL.
• It would be helpful to include error handling or logging within the instagram function to diagnose issues with the API calls.

Here's what I looked at during the review

• 🟡 General issues: 2 issues found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

suggestion: Preserve original traceback using exception chaining.

Consider using 'raise DirectDownloadLinkException(f"ERROR: {e}") from e' so that the underlying exception’s trace is retained, which can assist in debugging.

[sourcery-ai]

nitpick (typo): Typo in configuration comment.

It appears 'Ista' might be a typo; consider correcting it to 'Insta' or 'Instagram' for clarity.

Suggested change

	#Ista video downloader api
	#Insta video downloader API