docmaster first commit

docmaster/Dockerfile

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+
+ARG BUILD_FROM=ghcr.io/hassio-addons/base/amd64:9.2.2
+FROM ${BUILD_FROM}
+
+# --no-cache
+RUN \
+  apk -U upgrade && \
+  apk add ghostscript py3-flask py3-gunicorn && \
+  apk add py3-unoconv --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing/ && \
+  apk add font-noto-all ttf-ubuntu-font-family ttf-freefont ttf-font-awesome ttf-opensans && \
+  apk add samba-client jq
+
+COPY start.sh /app/
+COPY app.py /app/
+
+EXPOSE 6000
+HEALTHCHECK CMD curl --fail http://localhost:6000/ || exit 1
+
+ENTRYPOINT ["/app/start.sh"]

docmaster/app.py

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+#!/usr/bin/env python3
+
+from flask import Flask, jsonify, request, send_from_directory
+import tempfile
+import subprocess
+import os
+import sys
+
+app = Flask(__name__)
+
+@app.route('/')
+def helloWorld():
+    return "Hi! Please check usage docs.\n"
+
+
+@app.route('/status')
+def getStatus():
+    PRINTER_HOST = os.environ.get("PRINTER_HOST")
+    return jsonify({"status": "OK", "printer_host": PRINTER_HOST})
+
+
+def getFile(tmpDir):
+    if request.files.get('file', None):
+        f = request.files['file']
+        infile = tmpDir.name + '/' + f.name
+        f.save(infile)
+    elif request.form.get('smbfile'):
+        smbhost = request.form.get('smbhost', None)
+        smbuser = request.form.get('smbuser', None) 
+        smbpass = request.form.get('smbpass', None) 
+        smbworkgroup = request.form.get('smbworkgroup', None)
+        smbshare = request.form.get('smbshare', None)
+        smbdir = request.form.get('smbdir', None)
+        smbfile = request.form.get('smbfile', None) 
+        v = [ smbhost, smbuser, smbpass, smbworkgroup, smbshare, smbdir, smbfile ]
+        if (all(v)):
+            os.chdir(tmpDir.name)
+            r = subprocess.run(['smbclient', 
+                '--user', smbuser,
+                '--workgroup', smbworkgroup,
+                '--directory', smbdir,
+                '--command', 'get "%s"' % (smbfile),
+                '//%s/%s' % (smbhost, smbshare), 
+                smbpass ]  )
+            if r.returncode != 0:
+                return None
+            infile = tmpDir.name + '/' + smbfile
+    else:
+        return None
+    return infile
+
+
+@app.route('/convert/pdf', methods=["POST"])
+def toPDF():
+    tmpDir = tempfile.TemporaryDirectory()
+    infile = getFile(tmpDir)
+    pdffile = infile + '.pdf'
+
+    r = subprocess.run(['/usr/bin/unoconv', '--output', pdffile, infile])
+    if r.returncode != 0:
+        return jsonify({"status": "conversion error"})
+
+    return send_from_directory(directory=tmpDir.name,
+                           filename=os.path.basename(pdffile),
+                           mimetype='application/pdf',
+                           as_attachment=True)
+
+
+@app.route('/print', methods=["POST"])
+def print():
+    PRINTER_HOST = os.environ.get("PRINTER_HOST")
+    if not PRINTER_HOST:
+        raise ValueError("You have to set the PRINTER_HOST environment variable")
+
+    tmpDir = tempfile.TemporaryDirectory()
+    infile = getFile(tmpDir)
+
+    unoconv = subprocess.Popen(['/usr/bin/unoconv','--stdout',infile], stdout=subprocess.PIPE)
+    pdf2ps  = subprocess.Popen(['/usr/bin/pdf2ps','-','-'], stdin=unoconv.stdout, stdout=subprocess.PIPE)
+    unoconv.wait()
+    unoconv.stdout.close()
+    printer = subprocess.Popen(['/usr/bin/nc','-w','1', PRINTER_HOST,'9100'], stdin=pdf2ps.stdout)
+    pdf2ps.wait()
+    pdf2ps.stdout.close()
+    printer.wait()
+
+    return jsonify({"status": "ok"})
+
+
+if __name__ == '__main__':
+    app.run(port=6000)

docmaster/config.json

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+{
+    "name": "DocMaster",
+    "url": "https://git.asperti.com/paspo/hassio-addons",
+    "version": "0.1",
+    "slug": "docmaster",
+    "description": "document conversion and print",
+    "startup": "services",
+    "boot": "auto",
+    "audio": false,
+    "gpio": false,
+    "arch": [
+        "amd64"
+    ],
+    "ports": {
+        "6000/tcp": 6000
+    },
+    "options": {
+        "printer_host": "192.168.1.30"
+    },
+    "schema": {
+        "printer_host": "str"
+    }
+}

docmaster/start.sh

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+#!/bin/sh
+set -e
+
+CONFIG_PATH=/data/options.json
+PRINTER_HOST=$(jq --raw-output ".printer_host" $CONFIG_PATH)
+
+cd /app
+gunicorn app:app --bind 0.0.0.0:6000 --workers=2