55 lines
1.6 KiB
Ruby
55 lines
1.6 KiB
Ruby
# frozen_string_literal: true
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module Banzai
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module Filter
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# HTML filter that inserts a placeholder element for each
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# reference to a metrics dashboard.
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class InlineMetricsFilter < Banzai::Filter::InlineEmbedsFilter
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# Placeholder element for the frontend to use as an
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# injection point for charts.
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def create_element(params)
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doc.document.create_element(
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'div',
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class: 'js-render-metrics',
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'data-dashboard-url': metrics_dashboard_url(params)
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)
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end
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# Search params for selecting metrics links. A few
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# simple checks is enough to boost performance without
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# the cost of doing a full regex match.
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def xpath_search
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"descendant-or-self::a[contains(@href,'metrics') and \
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starts-with(@href, '#{Gitlab.config.gitlab.url}')]"
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end
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# Regular expression matching metrics urls
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def link_pattern
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Gitlab::Metrics::Dashboard::Url.regex
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end
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private
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# Endpoint FE should hit to collect the appropriate
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# chart information
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def metrics_dashboard_url(params)
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Gitlab::Metrics::Dashboard::Url.build_dashboard_url(
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params['namespace'],
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params['project'],
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params['environment'],
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embedded: true,
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**query_params(params['url'])
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)
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end
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# Parses query params out from full url string into hash.
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#
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# Ex) 'https://<root>/<project>/<environment>/metrics?title=Title&group=Group'
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# --> { title: 'Title', group: 'Group' }
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def query_params(url)
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Gitlab::Metrics::Dashboard::Url.parse_query(url)
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end
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end
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end
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end
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