simon/wnd_ils_alarmfax_parser
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print pdf with chrome

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This commit is contained in:
Simon Zeyer 2024-10-16 13:36:43 +00:00
parent b82d1bed1f
commit 47c1c5ceb8
5 changed files with 36 additions and 15 deletions
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21
Dockerfile
View File

@ -46,6 +46,7 @@ RUN apt-get --yes --force-yes install ca-certificates cups cups-filters libcups
WORKDIR /usr/src/app
EXPOSE 631
EXPOSE 5000
# Add user and disable sudo password checking
RUN useradd \
--groups=sudo,lp,lpadmin \
@ -56,11 +57,29 @@ RUN useradd \
print \
&& sed -i '/%sudo[[:space:]]/ s/ALL[[:space:]]*$/NOPASSWD:ALL/' /etc/sudoers
# Print PDF
RUN apt-get update && apt-get install -y \
apt-transport-https \
ca-certificates \
curl \
gnupg \
--no-install-recommends \
&& curl -sSL https://dl.google.com/linux/linux_signing_key.pub | apt-key add - \
&& echo "deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list \
&& apt-get update && apt-get install -y \
google-chrome-stable \
--no-install-recommends
# It won't run from the root user.
RUN groupadd chrome && useradd -g chrome -s /bin/bash -G audio,video chrome \
&& mkdir -p /home/chrome && chown -R chrome:chrome /home/chrome
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt
RUN pip install --no-cache-dir waitress
COPY ./app .
COPY *.crt /usr/local/share/ca-certificates/
RUN update-ca-certificates
CMD [ "sh","-c","/etc/init.d/cups start && python3 /usr/src/app/app.py" ]
CMD [ "sh","-c","/etc/init.d/cups start && waitress-serve --port=5000 app:app && python3 exchange_connect.py" ]

4
app/app.py
View File

@ -132,5 +132,5 @@ def files():
html = html + '</ul><form method="post" enctype="multipart/form-data"><input type="file" name="file"><input type=submit value=Upload></form>'
return html
if __name__ == "__main__":
app.run(port=5000)
# if __name__ == "__main__":
# app.run(port=5000, host='0.0.0.0')

24
app/hooks.py
View File

@ -2,10 +2,9 @@ import os
import logging
import requests
import cups
from weasyprint import HTML, CSS
from weasyprint.text.fonts import FontConfiguration
from requests.adapters import Retry
import uuid
import subprocess
retries = Retry(total=5,
backoff_factor=0.1,
@ -122,23 +121,26 @@ def alarminator_api(parsed_body: dict):
except Exception as e:
logging.error("alarminator_api", e)
def cups_print(parsed_body: dict, body: str):
html = HTML(string='<html><head></head><body>'+body+"</body></html>", base_url="")
font_config = FontConfiguration()
pdf = html.write_pdf(font_config=font_config,stylesheets=[CSS(string='body { font-family: serif !important }')])
fname = "/tmp/{}.pdf".format(uuid.uuid4())
def generate_pdf(html_body, filename):
f = "/tmp/{}.html".format(uuid.uuid4())
with open(f,"w") as _f:
_f.write(html_body)
subprocess.run(["/usr/bin/google-chrome-stable", "--headless", "--no-sandbox", "--disable-gpu", "--print-to-pdf="+filename, "--no-pdf-header-footer", "--print-to-pdf-no-header", "--no-margins", f])
if os.path.exists(f):
os.remove(f)
def cups_print(parsed_body: dict, body: str):
if os.environ.get('IS_DEV') and os.environ.get('IS_DEV') == "True":
with open("{}.pdf".format(uuid.uuid4()),"wb") as f:
f.write(pdf)
generate_pdf(body, "{}.pdf".format(uuid.uuid4()))
fname = "/tmp/{}.pdf".format(uuid.uuid4())
try:
conn = cups.Connection ()
printer_arr = os.environ.get('printer',"DEFAULT").split(";")
print_num = int(os.environ.get('print_num',0))
if printer_arr.__len__() > 0:
generate_pdf(body, fname)
for printer in printer_arr:
if 'ALARMDEPESCHE' in parsed_body:
with open(fname,"wb") as f:
f.write(pdf)
for i in range(0, print_num):
conn.printFile (printer, fname, "Alarmfax", {})
os.remove(fname)

1
docker-compose.yaml
View File

@ -24,6 +24,7 @@ services:
- printer=${printer}
- print_num=${print_num}
- MAPS_API_KEY=${MAPS_API_KEY}
- BASIC_AUTH_PASSWORD=${BASIC_AUTH_PASSWORD}
volumes:
- ./cups:/etc/cups
- ./cupsd.conf.txt:/etc/cups/cupsd.conf

1
requirements.txt
View File

@ -41,7 +41,6 @@ tinycss2==1.3.0
tzdata==2022.7
tzlocal==4.2
urllib3==1.26.14
weasyprint==62.3
webencodings==0.5.1
Werkzeug==3.0.4
xmltodict==0.12.0