MrBlakeandClaude Sonnet 5
3768417be6
Adds a "SVG offline" download button on the rack detail page. It reuses NetBox's own rack-elevation REST endpoint to render the SVG, then strips embedded <a>/xlink:href links (which point at internal, relative NetBox URLs and are useless once the file is saved) so the result renders identically when opened standalone in any SVG viewer. Gated by the new offline_svg_export_enabled plugin setting (on by default). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
import xml.etree.ElementTree as ET
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SVG_NS = "http://www.w3.org/2000/svg"
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XLINK_NS = "http://www.w3.org/1999/xlink"
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ET.register_namespace("", SVG_NS)
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ET.register_namespace("xlink", XLINK_NS)
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_ANCHOR_TAGS = (f"{{{SVG_NS}}}a", "a")
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_HREF_ATTRS = ("href", f"{{{XLINK_NS}}}href")
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def strip_svg_hyperlinks(svg_source):
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"""Return svg_source with every <a> wrapper unwrapped and href/xlink:href removed.
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NetBox wraps rack elevation devices in hyperlinks pointing at internal,
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relative object URLs. Those links are dead weight (and broken paths) once
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the SVG is saved and opened outside of a NetBox session, so this produces
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a self-contained file with the same visuals but no link markup.
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"""
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root = ET.fromstring(svg_source)
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_unwrap_anchors(root)
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_strip_href_attributes(root)
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return ET.tostring(root, encoding="unicode")
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def _unwrap_anchors(parent):
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replaced = False
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new_children = []
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for child in list(parent):
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_unwrap_anchors(child)
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if child.tag in _ANCHOR_TAGS:
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replaced = True
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new_children.extend(list(child))
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else:
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new_children.append(child)
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if replaced:
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for child in list(parent):
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parent.remove(child)
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for child in new_children:
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parent.append(child)
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def _strip_href_attributes(element):
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for attr in _HREF_ATTRS:
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element.attrib.pop(attr, None)
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for child in element:
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_strip_href_attributes(child)
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