LinkCrawler Rule example - DIRECTHTTP

DIRECTHTTP rules can be used to do the following tasks:

• Make JD accept direct-downloadable URLs it otherwise wouldn't accept
• -> Most commonly it's direct-URLs without file-extensions
• Let JD "learn" file-extensions which it does not accept by default

Simple example: Accept attachments from the JDownloader knowledgebase:
Let's say you want to download this URL:
https://support.jdownloader.org/Knowledgebase/Article/GetAttachment/42/15166

JD will not pickup this URL - it will only find the image behind it if you add it via "Add Links" dialog and let JD deep-scan.
The following rule will make JD always accepot this kind of URL:

[
  {
    "enabled": true,
    "logging": false,
    "maxDecryptDepth": 1,
    "name": "example rule for DIRECTHTTP",
    "pattern": "https://support\\.jdownloader\\.org/Knowledgebase/Article/GetAttachment/\\d+/\\d+",
    "rule": "DIRECTHTTP"
  }
]

As a side-effect, you can now also let JD deep-parse any of our knowledgebase articles and it will find all of these attached URLs automatically.