-
-
Notifications
You must be signed in to change notification settings - Fork 705
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
c4f1d8b
commit f9d2b14
Showing
2 changed files
with
77 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| """Functions to sanitize user input files.""" | ||
| from bleach import clean | ||
| from bleach.css_sanitizer import CSSSanitizer | ||
|
|
||
| ALLOWED_ELEMENTS_SVG = [ | ||
| 'a', 'animate', 'animateColor', 'animateMotion', | ||
| 'animateTransform', 'circle', 'defs', 'desc', 'ellipse', 'font-face', | ||
| 'font-face-name', 'font-face-src', 'g', 'glyph', 'hkern', | ||
| 'linearGradient', 'line', 'marker', 'metadata', 'missing-glyph', | ||
| 'mpath', 'path', 'polygon', 'polyline', 'radialGradient', 'rect', | ||
| 'set', 'stop', 'svg', 'switch', 'text', 'title', 'tspan', 'use' | ||
| ] | ||
|
|
||
| ALLOWED_ATTRIBUTES_SVG = [ | ||
| 'accent-height', 'accumulate', 'additive', 'alphabetic', | ||
| 'arabic-form', 'ascent', 'attributeName', 'attributeType', | ||
| 'baseProfile', 'bbox', 'begin', 'by', 'calcMode', 'cap-height', | ||
| 'class', 'color', 'color-rendering', 'content', 'cx', 'cy', 'd', 'dx', | ||
| 'dy', 'descent', 'display', 'dur', 'end', 'fill', 'fill-opacity', | ||
| 'fill-rule', 'font-family', 'font-size', 'font-stretch', 'font-style', | ||
| 'font-variant', 'font-weight', 'from', 'fx', 'fy', 'g1', 'g2', | ||
| 'glyph-name', 'gradientUnits', 'hanging', 'height', 'horiz-adv-x', | ||
| 'horiz-origin-x', 'id', 'ideographic', 'k', 'keyPoints', | ||
| 'keySplines', 'keyTimes', 'lang', 'marker-end', 'marker-mid', | ||
| 'marker-start', 'markerHeight', 'markerUnits', 'markerWidth', | ||
| 'mathematical', 'max', 'min', 'name', 'offset', 'opacity', 'orient', | ||
| 'origin', 'overline-position', 'overline-thickness', 'panose-1', | ||
| 'path', 'pathLength', 'points', 'preserveAspectRatio', 'r', 'refX', | ||
| 'refY', 'repeatCount', 'repeatDur', 'requiredExtensions', | ||
| 'requiredFeatures', 'restart', 'rotate', 'rx', 'ry', 'slope', | ||
| 'stemh', 'stemv', 'stop-color', 'stop-opacity', | ||
| 'strikethrough-position', 'strikethrough-thickness', 'stroke', | ||
| 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', | ||
| 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', | ||
| 'stroke-width', 'systemLanguage', 'target', 'text-anchor', 'to', | ||
| 'transform', 'type', 'u1', 'u2', 'underline-position', | ||
| 'underline-thickness', 'unicode', 'unicode-range', 'units-per-em', | ||
| 'values', 'version', 'viewBox', 'visibility', 'width', 'widths', 'x', | ||
| 'x-height', 'x1', 'x2', 'xlink:actuate', 'xlink:arcrole', | ||
| 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', | ||
| 'xlink:type', 'xml:base', 'xml:lang', 'xml:space', 'xmlns', | ||
| 'xmlns:xlink', 'y', 'y1', 'y2', 'zoomAndPan', 'style' | ||
| ] | ||
|
|
||
|
|
||
| def sanitize_svg(file_data: str, strip: bool = True, elements: str = ALLOWED_ELEMENTS_SVG, attributes: str = ALLOWED_ATTRIBUTES_SVG) -> str: | ||
| """Sanatize a SVG file. | ||
| Args: | ||
| file_data (str): SVG as string. | ||
| strip (bool, optional): Should invalid elements get removed. Defaults to True. | ||
| elements (str, optional): Allowed elements. Defaults to ALLOWED_ELEMENTS_SVG. | ||
| attributes (str, optional): Allowed attributes. Defaults to ALLOWED_ATTRIBUTES_SVG. | ||
| Returns: | ||
| str: Sanitzied SVG file. | ||
| """ | ||
|
|
||
| cleaned = clean( | ||
| file_data, | ||
| tags=elements, | ||
| attributes=attributes, | ||
| strip=strip, | ||
| strip_comments=strip, | ||
| css_sanitizer=CSSSanitizer() | ||
| ) | ||
| return cleaned |