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Correctly create the temporary file #703

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Jul 21, 2022
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Correctly create the temporary file #703

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99 changes: 51 additions & 48 deletions scan_to_paperless/code.py
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Original file line number Diff line number Diff line change
Expand Up @@ -189,70 +189,73 @@ def add_codes(
output_pdf = PdfFileWriter()
for index, page in enumerate(existing_pdf.pages):
# Get the QR code from the page
image = f"img-{index}.png"
subprocess.run( # nosec
[
"gm",
"convert",
"-density",
str(dpi),
f"{input_filename}[{index}]",
image,
],
check=True,
)
img0 = Image.open(image)

codes: List[_PageCode] = []
codes += _get_codes_with_z_bar(image, 0, img0.width, img0.height, all_codes, added_codes)
for angle in range(-10, 11, 2):
with tempfile.NamedTemporaryFile(suffix=f"-{index}.png") as image_file:
image = image_file.name
subprocess.run( # nosec
[
"gm",
"convert",
"-density",
str(dpi),
"-rotate",
str(angle),
f"{input_filename}[{index}]",
image,
],
check=True,
)
codes += _get_codes_with_z_bar(image, angle, img0.width, img0.height, all_codes, added_codes)
# codes += _get_codes_with_open_cv(image, 0, img0.width, img0.height, all_codes, added_codes)
img0 = Image.open(image)

codes: List[_PageCode] = []
codes += _get_codes_with_z_bar(image, 0, img0.width, img0.height, all_codes, added_codes)
for angle in range(-10, 11, 2):
subprocess.run( # nosec
[
"gm",
"convert",
"-density",
str(dpi),
"-rotate",
str(angle),
f"{input_filename}[{index}]",
image,
],
check=True,
)
codes += _get_codes_with_z_bar(
image, angle, img0.width, img0.height, all_codes, added_codes
)
# codes += _get_codes_with_open_cv(image, 0, img0.width, img0.height, all_codes, added_codes)

if codes:
packet = io.BytesIO()
can = canvas.Canvas(
packet, pagesize=(page.mediabox.width, page.mediabox.height), bottomup=False
)
for code in codes:
can.setFillColor(Color(1, 1, 1, alpha=0.7))
path = can.beginPath()
path.moveTo(code["rect"][0][0] / dpi * pdf_dpi, code["rect"][0][1] / dpi * pdf_dpi)
for point in code["rect"][1:]:
path.lineTo(point[0] / dpi * pdf_dpi, point[1] / dpi * pdf_dpi)
path.close()
can.drawPath(path, stroke=0, fill=1)

can.setFillColorRGB(0, 0, 0)
can.setFont(font_name, font_size)
can.drawString(
min((p[0] for p in code["rect"])) / dpi * pdf_dpi + margin_left,
min((p[1] for p in code["rect"])) / dpi * pdf_dpi + font_size + 0 + margin_top,
str(code["pos"]),
if codes:
packet = io.BytesIO()
can = canvas.Canvas(
packet, pagesize=(page.mediabox.width, page.mediabox.height), bottomup=False
)
for code in codes:
can.setFillColor(Color(1, 1, 1, alpha=0.7))
path = can.beginPath()
path.moveTo(code["rect"][0][0] / dpi * pdf_dpi, code["rect"][0][1] / dpi * pdf_dpi)
for point in code["rect"][1:]:
path.lineTo(point[0] / dpi * pdf_dpi, point[1] / dpi * pdf_dpi)
path.close()
can.drawPath(path, stroke=0, fill=1)

can.setFillColorRGB(0, 0, 0)
can.setFont(font_name, font_size)
can.drawString(
min((p[0] for p in code["rect"])) / dpi * pdf_dpi + margin_left,
min((p[1] for p in code["rect"])) / dpi * pdf_dpi + font_size + 0 + margin_top,
str(code["pos"]),
)

can.save()
# move to the beginning of the StringIO buffer
packet.seek(0)
can.save()
# move to the beginning of the StringIO buffer
packet.seek(0)

# Create a new PDF with Reportlab
new_pdf = PdfFileReader(packet)
# Create a new PDF with Reportlab
new_pdf = PdfFileReader(packet)

page.mergePage(new_pdf.getPage(0))
output_pdf.addPage(page)
page.mergePage(new_pdf.getPage(0))
output_pdf.addPage(page)

with tempfile.NamedTemporaryFile(suffix=".pdf") as dest_1, tempfile.NamedTemporaryFile(
suffix=".pdf"
Expand Down