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Aileen Nowak e19e91044d 🙇 Blog icon utils and publisher.logo for JSON-LD (#8297)
refs #8221, closes #7688, refs #7558

🙇  Improve meta data publisher logo behaviour
This is a follow-up PR for #8285.

Reasons: The code changes of #8285 caused error messages when falling back to the default `favicon.ico`, as the `image-size` tool doesn't support `ico` files.

This PR takes the logic to decide which logo needs to be listed in our schema into a new fn `blog_logo.js`. There we have now three decisions:
1. If we have a publication **logo**, we'll take that one
2. If we have no publication logo, but an **icon** we'll use this one.
3. If we have none of the above things, we fall back to our default `favicon.ico`

Additional, we're hard coding image dimensions for whenever the logo is an `.ico` file and built and extra decision to not call `image-size` when the dimension are already given.

I will create another follow-up PR, which checks the extension type for the file and offers it as a util.

🛠  Blog icon util

refs #7688

Serve functionality around the blog icon in its own util:
- getIconDimensions -> async function that takes the filepath of on ico file and returns its dimensions
- isIcoImageType -> returns true if file has `.ico` extension
- getIconType -> returns icon-type (`x-icon` or `png`)
- getIconUrl -> returns the absolut or relativ URL for the favicon: `[subdirectory or not]favicon.[ico or png]`

📖  Get .ico sizes for meta data & logo improvement

refs #7558
refs #8221

Use the new `blogIconUtil` in meta data to fetch the dimensions of `.ico` files.

Improvements for `publisher.logo`: We're now returning a hard-coded 'faked' image dimensions value to render an `imageObject` and prevent error our schema (Google structured data). As soon as an image (`.ico` or non-`.ico`) is too large, but - in case of non-`.ico` - a square format, be set the image-dimensions to 60px width and height. This reduces the chances of getting constantly error messages from Googles' webmaster tools.

- add getIconPath util
2017-04-11 18:32:06 +02:00
..
db 🎨 ⏱ Cleanup / optimise the server.init() function (#7985) 2017-02-17 17:44:34 +01:00
export 🐛 export database read settings from database (#8103) 2017-03-08 10:26:57 +00:00
import Import from LTS blogs now properly adds tags to posts. (#7926) 2017-01-31 17:50:44 +01:00
importer 😱 🎨 Refactor storage adapter (#8229) 2017-04-05 15:10:34 +01:00
meta 🙇 Blog icon utils and publisher.logo for JSON-LD (#8297) 2017-04-11 18:32:06 +02:00
migrations 🔥 🎨 No more updateSettingsCache (#8090) 2017-03-02 23:00:01 +01:00
schema add issued_by column to access token (#8284) 2017-04-11 13:12:14 +01:00
slack 🙇 Blog icon utils and publisher.logo for JSON-LD (#8297) 2017-04-11 18:32:06 +02:00
validation 🔥 🎨 Themes & settings misc cleanup (#8061) 2017-02-27 23:30:49 +01:00
xml 🐝 Add image property to rss (#8289) 2017-04-11 13:54:52 +02:00
timezones.json