[Enhancement] Readable filenames not available for subscribestar attachments

[fake-name]

Currently, subscribestar attachments can have nice human-readable filenames. However, the actual linked file is named with a random UUID.

There seems to be no way to access this currently, which is supported by looking at the source.

Patching _media_from_post() to include it is pretty simple:

    @staticmethod
    def _media_from_post(html):
        media = []

        gallery = text.extract(html, 'data-gallery="', '"')[0]
        if gallery:
            media.extend(
                item for item in json.loads(text.unescape(gallery))
                if "/previews/" not in item["url"]
            )

        attachments = text.extract(
            html, 'class="uploads-docs"', 'data-role="post-edit_form"')[0]
        if attachments:
            for att in attachments.split('class="doc_preview"')[1:]:
                media.append({
                    "id"  : text.parse_int(text.extract(att, 'data-upload-id="', '"')[0]),
                    "url" : text.extract(att, 'href="', '"')[0],
                    "nice_name" : text.extract(att, 'doc_preview-title">', '</span')[0],
                    "type": "attachment",
                })

        return media

[mikf]

Updated it so filename fields now use readable names for attachments and the regular UUIDs if those are not available. (d09bc5b).