Add Pixiv metadata plugin

[psilabs-dev]

Adds Pixiv cookie login and metadata extraction for illustrations from pixiv.net.

usage

Supported one-shot parameter format (can extract $illust_id for metadata extraction):

• simple ID extraction:$illust_id
• URL-based extraction: pixiv.net/en/artworks/$illust_id

Supported archive file format:

• {$illust_id} title_of_work
• pixiv_{$illust_id} title_of_work

parameters

• tag_languages: include comma-separated list of strings for languages to extract (e.g. "en", "jp"). By default, an empty string parameter corresponds to extraction of untranslated tags, i.e. "jp" tags.

metadata

A generic Pixiv illustration includes the following extractable metadata:

• tags: list[str]: list of comma-delimited strings for tags.
• source: str: URL link to Pixiv artwork
• pixiv_user_id: int: artist ID on pixiv (can be used to find user channel: https://pixiv.net/en/users/$user_id
• artist: str: name of artist/username
• date_created: int: epoch time of artwork creation in seconds
• date_uploaded: int: epoch time of upload in seconds

If the illustration is a manga, this plugin may include additional manga metadata:

• pixiv_series_id: int: ID of the series which this manga belongs to.
• pixiv_series_title: str: name of the manga series
• pixiv_series_order: int: position of this illustration within the manga series

---

Taggable strings (e.g. tags, artist, series title) are sanitized of special characters by the following logic:

• underscores are replaced by a space (e.g. "lorem_ipsum" -> "lorem ipsum")
• dashes preceded by space are removed (e.g. "lorem -ipsum" -> "lorem ipsum"; "lorem-ipsum" -> "lorem-ipsum")
• other special characters (["?*%$:]) are removed (e.g. "lorem: ipsum" -> "lorem ipsum")

[psilabs-dev]

For some of the fields, (e.g. user_id, series_id), this is exclusively a pixiv property, but different sources might also have their own user_id field which might result in possible metadata conflict. I'm thinking there are few ways to resolve this, which one is better?

• first way: make category specific to pixiv: pixiv_user_id: 123456.
• second way: making the id point to pixiv: user_id: https://www.pixiv.net/users/123456.

[Difegue]

A pixiv-specific namespace sounds like the way to go to me.

[Difegue]

👋 Apologies for the long time reviewing this; Stuff's been busy!

On top of it, well, I don't have much to say at all... this looks perfect. 😤
Who the hell goes this hard for a first-time contribution? Thanks a lot, I am humbled. 🙇

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[psilabs-dev]

Thanks👌 Development was easy thanks to seeing/copying the previous plugins haha, I just cleaned it up a bit. Love the project!