fix removed file on print hook

Dockerfile

@@ -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" ]

app/app.py

@@ -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__":
+# if __name__ == "__main__":
-    app.run(port=5000)
+#     app.run(port=5000, host='0.0.0.0')

app/hooks.py

@@ -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,
@@ -40,8 +39,8 @@ def alarminator_api(parsed_body: dict):
                     req_string +="&alarmtime={}".format(parsed_body['Einsatzbeginn(Soll)'].split(" ")[1])
                 if 'Auftragsnummer' in parsed_body and not (os.environ.get('IS_DEV') and os.environ.get('IS_DEV') == "True"):
                     req_string +="&operationnumber={}".format(parsed_body['Auftragsnummer']) 
-                if 'Notfallgeschehen' in parsed_body:
+                if 'Sachverhalt' in parsed_body:
-                    req_string +="&message={}".format(parsed_body['Notfallgeschehen']) 
+                    req_string +="&message={}".format(parsed_body['Sachverhalt']) 
                 if 'Einsatzziel' in parsed_body:
                     if 'Stadt' in parsed_body['Einsatzziel']:
                         req_string +="&community={}".format(parsed_body['Einsatzziel']['Stadt'])
@@ -69,9 +68,9 @@ def alarminator_api(parsed_body: dict):
                             gear.append(r['Ressourcen'])
                     req_string +="&gear={}".format(';'.join(gear))
 
-                req_string +="&district={}".format('district')
+                # req_string +="&district={}".format('district')
-                req_string +="&floor={}".format('floor')
+                # req_string +="&floor={}".format('floor')
-                req_string +="&section={}".format('section')
+                # req_string +="&section={}".format('section')
                 req_string +="&keywordRaw={}".format(parsed_body['Einsatzstichwort'])
                 #req_string +="&keywordId={}".format('keywordId')
                 req_string +="&keywordCategory={}".format(parsed_body['Einsatzstichwort'].split("(")[0])
@@ -122,27 +121,30 @@ def alarminator_api(parsed_body: dict):
     except Exception as e:
         logging.error("alarminator_api", e)
 
+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):
-    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())
-    
     if os.environ.get('IS_DEV') and os.environ.get('IS_DEV') == "True":
-        with open("{}.pdf".format(uuid.uuid4()),"wb") as f:
+        generate_pdf(body, "{}.pdf".format(uuid.uuid4()))
-            f.write(pdf)
+    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)
     except Exception as e:
+        logging.error("cups_print", e)
+    finally:
         if os.path.exists(fname):
-            os.remove(fname)
+            os.remove(fname)
-        logging.error("cups_print", e)

docker-compose.yaml

@@ -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

requirements.txt

@@ -11,6 +11,7 @@ defusedxml==0.7.1
 dnspython==2.3.0
 exchangelib==4.9.0
 Flask==3.0.3
+Flask-BasicAuth==0.2.0
 fonttools==4.54.1
 html5lib==1.1
 idna==3.4
@@ -40,7 +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