alexanderandClaude Opus 5.5
864e2ff824
from-markdown takes a hand-written summary such as SUMMARY.md and sets it in the full report's dress: the same cover, header, footers, table of contents, headings and grids. The shared macros move to macros.html.j2 so both templates draw from them, and layout.render_pdf takes the template and document title to use. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
93 lines
3.5 KiB
Python
93 lines
3.5 KiB
Python
"""Renders the SAST/SCA report template.
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The template and its stylesheet are the design; this module is only what turns them into a
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document. It takes a context that is already shaped for the page -- every number formatted, every
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bar already a percentage -- so that the template places strings and never computes.
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Nothing here reads an artifact. Filling a context from a scan is :mod:`context`, which works from
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what :mod:`sources` collected; :func:`sample.sample_context` builds one by hand, which is what the
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template tests render.
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"""
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from __future__ import annotations
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from pathlib import Path
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from typing import Any
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from jinja2 import Environment, FileSystemLoader, select_autoescape
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TEMPLATE_DIR = Path(__file__).resolve().parent / "template"
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TEMPLATE_NAME = "report.html.j2"
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STYLESHEET = TEMPLATE_DIR / "report.css"
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# What the document calls itself, in the PDF's own metadata rather than only on its first page.
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TITLE = "Complete Security Findings Report"
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AUTHOR = "CipherCell"
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# The shape :func:`render_html` expects. Written down because the template guards on it: a key that
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# is absent leaves its section out, which is how a scan that ran half the pipeline produces a
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# shorter report rather than one full of empty tables.
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CONTEXT = {
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"cover": "scan_id, footer_date, logo, title, identity[], severity_ledger{title, rows[]}",
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"project": "title, overview[], languages{title, rows[]}",
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"summary": "title, overview[], distributions[{title, rows[], legend}]",
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"critical": "title, table{columns[], rows[]}",
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"sections": "[{title, new_page?, groups[{title, note?, cards[], table?}]}]",
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}
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def render_html(context: dict[str, Any], template: str = TEMPLATE_NAME) -> str:
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"""Render the report as an HTML document.
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Args:
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context: The page-ready context; see :data:`CONTEXT`.
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template: Which template in :data:`TEMPLATE_DIR` to draw it with.
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Returns:
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The rendered HTML.
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"""
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environment = Environment(
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loader=FileSystemLoader(TEMPLATE_DIR),
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autoescape=select_autoescape(default_for_string=True, default=True),
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trim_blocks=True,
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lstrip_blocks=True,
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)
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return environment.get_template(template).render(**context)
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def render_pdf(context: dict[str, Any], template: str = TEMPLATE_NAME, title: str = TITLE) -> bytes:
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"""Render the report as a PDF.
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Args:
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context: The page-ready context; see :data:`CONTEXT`.
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template: Which template in :data:`TEMPLATE_DIR` to draw it with.
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title: What the document calls itself in its metadata.
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Returns:
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The PDF.
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"""
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# WeasyPrint pulls in native cairo and pango bindings. Imported here so that importing this
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# module -- to render the HTML, or merely to read CONTEXT -- does not pay for them.
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from weasyprint import CSS, HTML
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from weasyprint.text.fonts import FontConfiguration
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# Without this the @font-face rules are ignored and Space Grotesk is silently replaced by
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# whatever the host happens to have, which is how the design sample came to be set in Carlito.
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fonts = FontConfiguration()
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# Relative URLs in the template and the stylesheet -- the mark, the font files -- resolve
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# against the template directory.
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document = HTML(string=render_html(context, template), base_url=str(TEMPLATE_DIR)).render(
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stylesheets=[CSS(filename=str(STYLESHEET), font_config=fonts)],
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font_config=fonts,
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)
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document.metadata.title = f"{title} - {context.get('cover', {}).get('subject', '')}".strip(" -")
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document.metadata.authors = [AUTHOR]
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return bytes(document.write_pdf())
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