mirror of
https://github.com/thiloho/archtika.git
synced 2025-11-22 02:41:35 +01:00
50 lines
1.4 KiB
MySQL
50 lines
1.4 KiB
MySQL
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-- migrate:up
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CREATE FUNCTION api.export_articles_zip (website_id UUID)
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RETURNS "*/*"
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AS $$
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DECLARE
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_has_access BOOLEAN;
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_headers TEXT;
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_article RECORD;
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_markdown_dir TEXT := '/tmp/website-' || export_articles_zip.website_id;
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BEGIN
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_has_access = internal.user_has_website_access (export_articles_zip.website_id, 20);
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SELECT
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FORMAT('[{ "Content-Type": "application/gzip" },'
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'{ "Content-Disposition": "attachment; filename=\"%s\"" }]',
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'archtika-export-articles-' || export_articles_zip.website_id || '.tar.gz') INTO _headers;
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PERFORM
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SET_CONFIG('response.headers', _headers, TRUE);
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EXECUTE FORMAT('COPY (SELECT '''') TO PROGRAM ''mkdir -p %s''', _markdown_dir || '/articles');
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FOR _article IN (
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SELECT a.id, a.website_id, a.slug, a.main_content
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FROM internal.article AS a
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WHERE a.website_id = export_articles_zip.website_id)
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LOOP
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EXECUTE FORMAT(
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'COPY (SELECT %L) TO ''%s''',
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_article.main_content,
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_markdown_dir || '/articles/' || _article.slug || '.md'
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);
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END LOOP;
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EXECUTE FORMAT('COPY (SELECT '''') TO PROGRAM ''tar -czf %s -C %s articles && rm %s''',
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_markdown_dir || '/export.tar.gz',
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_markdown_dir,
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_markdown_dir || '/articles/*.md'
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);
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RETURN pg_read_binary_file(_markdown_dir || '/export.tar.gz');
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END;
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$$
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LANGUAGE plpgsql
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SECURITY DEFINER;
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GRANT EXECUTE ON FUNCTION api.export_articles_zip TO authenticated_user;
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-- migrate:down
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DROP FUNCTION api.export_articles_zip;
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