Generate screen shots of rendered page for use in Open Graph meta tags.

[jxmot]

Will likely use ApiLeap and their API to create screenshots on demand. The trigger will be a configuration item likely stored in the Open Graph config file(s) such as oghead-example-test.json.

The behavior of this feature will -

• Occur only when genstatic and oghead are both true
• Generate a screenshot if a getscreenshot flag is true
• Select the image type (jpg or png) using what is found in sshottype
• Use the imagewidth and imageheight for image dimensions
• Name the file using what is found in sshotname and the desired dimensions. For example if sshotname contains index and the dimensions are 1000 x 800 then the resulting name will be index_1000x800.jpg
• Place the URL to the screenshot file in the OG meta tags
• Since the "free" plan on ApiLeap is only 100 shots per month there needs to be a "smart" way to insure that a screenshot is actually necessary. Possible methods -
  • If the screenshot already exists do not get another
  • Design a method of checking the page or some related indicator that the page is newer than any existing screenshot. If "new" then grab the screenshot.

NOTE : This change may require additional modifications to the OG configuration file(s). This would include -

• Flattening of the data structure -
  • related common fields -
    • image
    • imagewidth
    • imageheight
  • unrelated common fields (create a new issue for these!)
    • all placeholder fields
    • title, url, and description

[jxmot]

This issue depends on the completion of flatten config data for Open Graph meta tags #5