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6f5156a 2e511b5 6f5156a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | """Font download, sanitization, and FPDF writing."""
from __future__ import annotations
import hashlib
import re
import urllib.request
from pathlib import Path
from fpdf import FPDF
from fpdf.enums import Align, WrapMode
FONT_DIR = Path(__file__).resolve().parent / "_fonts"
FONT_URLS = {
"NotoSans-Regular.ttf": "https://raw.githubusercontent.com/googlefonts/noto-fonts/main/hinted/ttf/NotoSans/NotoSans-Regular.ttf",
"SourceHanSansSC-Regular.otf": "https://raw.githubusercontent.com/adobe-fonts/source-han-sans/release/OTF/SimplifiedChinese/SourceHanSansSC-Regular.otf",
"SourceHanSansK-Regular.otf": "https://raw.githubusercontent.com/adobe-fonts/source-han-sans/release/OTF/Korean/SourceHanSansK-Regular.otf",
}
EXTRA_FONT_URLS = {
"SourceHanSansTC-Regular.otf": "https://raw.githubusercontent.com/adobe-fonts/source-han-sans/release/OTF/TraditionalChinese/SourceHanSansTC-Regular.otf",
"NotoSansDevanagari-Regular.ttf": "https://raw.githubusercontent.com/googlefonts/noto-fonts/main/hinted/ttf/NotoSansDevanagari/NotoSansDevanagari-Regular.ttf",
"NotoSansArmenian-Regular.ttf": "https://raw.githubusercontent.com/googlefonts/noto-fonts/main/hinted/ttf/NotoSansArmenian/NotoSansArmenian-Regular.ttf",
"NotoSansGeorgian-Regular.ttf": "https://raw.githubusercontent.com/googlefonts/noto-fonts/main/hinted/ttf/NotoSansGeorgian/NotoSansGeorgian-Regular.ttf",
}
def ensure_fonts() -> None:
FONT_DIR.mkdir(parents=True, exist_ok=True)
all_fonts = {**FONT_URLS, **EXTRA_FONT_URLS}
for name, url in all_fonts.items():
dest = FONT_DIR / name
if dest.exists() and dest.stat().st_size > 1000:
continue
print(f"Downloading font {name} …", flush=True)
req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
with urllib.request.urlopen(req, timeout=600) as r, open(dest, "wb") as f:
f.write(r.read())
def sanitize_pdf_text(s: str) -> str:
s = str(s).replace("\t", " ").replace("\r\n", "\n").replace("\r", "\n")
# Drop NUL and other C0 control chars, fpdf cannot handle them
s = re.sub(r"[\x00-\x08\x0b\x0c\x0e-\x1f]", "", s)
s = s.replace("\uf0b7", "•").replace("\uf0a7", "•").replace("\uf0d8", "•")
s = s.replace("\uf02d", "–")
return s
def safe_slug(case_id: str | None, link: str | None, row_idx: int) -> str:
raw = (case_id or "").strip()
if not raw:
h = hashlib.sha256(((link or "") + str(row_idx)).encode("utf-8")).hexdigest()[:12]
raw = f"decision_{row_idx}_{h}"
raw = raw.replace("\n", " ").strip()
raw = re.sub(r'[\x00-\x1f<>:"/\\|?*]', "_", raw)
raw = re.sub(r"\s+", "_", raw)
raw = raw.strip("._") or f"row_{row_idx}"
if len(raw) > 120:
raw = raw[:120].rstrip("_")
return raw
class UnicodePDF(FPDF):
pass
def pdf_font_setup(pdf: FPDF, key: str) -> str:
if key == "han_sc":
pdf.add_font("HanSC", "", str(FONT_DIR / "SourceHanSansSC-Regular.otf"))
return "HanSC"
if key == "han_tc":
pdf.add_font("HanTC", "", str(FONT_DIR / "SourceHanSansTC-Regular.otf"))
return "HanTC"
if key == "han_k":
pdf.add_font("HanK", "", str(FONT_DIR / "SourceHanSansK-Regular.otf"))
return "HanK"
if key == "deva":
pdf.add_font("Deva", "", str(FONT_DIR / "NotoSansDevanagari-Regular.ttf"))
return "Deva"
if key == "arm":
pdf.add_font("Arm", "", str(FONT_DIR / "NotoSansArmenian-Regular.ttf"))
return "Arm"
if key == "geo":
pdf.add_font("Geo", "", str(FONT_DIR / "NotoSansGeorgian-Regular.ttf"))
return "Geo"
pdf.add_font("NotoSans", "", str(FONT_DIR / "NotoSans-Regular.ttf"))
return "NotoSans"
def write_one_pdf(
path: Path,
case_id: str,
link: str,
body: str,
font_key: str,
*,
text_source: str | None = None,
) -> None:
path.parent.mkdir(parents=True, exist_ok=True)
pdf = UnicodePDF()
pdf.set_auto_page_break(auto=True, margin=14)
pdf.set_left_margin(14)
pdf.set_right_margin(14)
pdf.add_page()
# Use one font for meta + body when the script is non-Latin: case_id often
# contains Hangul etc., and NotoSans would miss those glyphs in the header.
if font_key == "default":
text_family = pdf_font_setup(pdf, "default")
else:
text_family = pdf_font_setup(pdf, font_key)
pdf.set_font(text_family, size=11)
head = [f"case_id: {case_id}", f"link: {link}"]
if text_source:
head.append(f"Quelle Text: {text_source}")
head.append("")
meta = sanitize_pdf_text("\n".join(head))
# Latin header: WORD wrap; CJK header lines are short — WORD is fine with LEFT.
pdf.multi_cell(0, 6, meta, align=Align.L, wrapmode=WrapMode.WORD)
pdf.ln(2)
pdf.set_font(text_family, size=10)
text = body if (body and str(body).strip()) else "(kein Volltext in der Quelle)"
body_txt = sanitize_pdf_text(text)
if font_key == "default":
pdf.multi_cell(0, 5, body_txt, align=Align.L, wrapmode=WrapMode.WORD)
else:
pdf.multi_cell(0, 5, body_txt, align=Align.L, wrapmode=WrapMode.CHAR)
pdf.output(str(path))
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