121 lines
4.1 KiB
Python
121 lines
4.1 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# TODO setup webserver user disk quota
|
|
|
|
import tempfile
|
|
import uuid
|
|
from functools import wraps
|
|
from os import path
|
|
import os
|
|
import sqlite3
|
|
|
|
from flask import Flask, url_for, redirect, session, make_response, render_template, request, send_file, abort, flash
|
|
from flask_wtf import FlaskForm
|
|
from flask_wtf.file import FileField, FileRequired
|
|
from wtforms.fields import RadioField
|
|
from wtforms.validators import DataRequired
|
|
from werkzeug.utils import secure_filename
|
|
|
|
from job_queue import JobQueue
|
|
|
|
app = Flask(__name__, static_url_path='/static')
|
|
app.config.from_envvar('POGOJIG_SETTINGS')
|
|
|
|
class UploadForm(FlaskForm):
|
|
upload_file = FileField(validators=[DataRequired()])
|
|
|
|
class ResetForm(FlaskForm):
|
|
pass
|
|
|
|
job_queue = JobQueue(app.config['JOB_QUEUE_DB'])
|
|
|
|
def tempfile_path(namespace):
|
|
""" Return a path for a per-session temporary file identified by the given namespace. Create the session tempfile
|
|
dir if necessary. The application tempfile dir is controlled via the upload_path config value and not managed by
|
|
this function. """
|
|
sess_tmp = path.join(app.config['UPLOAD_PATH'], session['session_id'])
|
|
os.makedirs(sess_tmp, exist_ok=True)
|
|
return path.join(sess_tmp, namespace)
|
|
|
|
def require_session_id(fun):
|
|
@wraps(fun)
|
|
def wrapper(*args, **kwargs):
|
|
if 'session_id' not in session:
|
|
session['session_id'] = str(uuid.uuid4())
|
|
return fun(*args, **kwargs)
|
|
return wrapper
|
|
|
|
@app.route('/')
|
|
def index():
|
|
return app.send_static_file('index.html')
|
|
|
|
@app.route('/jigerator')
|
|
@require_session_id
|
|
def jigerator():
|
|
forms = { 'svg_form': UploadForm(), 'reset_form': ResetForm() }
|
|
|
|
if 'render_job' in session:
|
|
job = job_queue[session['render_job']]
|
|
if job.finished:
|
|
if job.result != 0:
|
|
flash(f'Error processing SVG file', 'success') # FIXME make this an error, add CSS
|
|
del session['render_job']
|
|
|
|
r = make_response(render_template('jigerator.html', has_renders=path.isfile(tempfile_path('output.zip')), **forms))
|
|
if 'render_job' in session:
|
|
r.headers.set('refresh', '10')
|
|
return r
|
|
|
|
# NOTES about the SVG file upload routines
|
|
# * The maximum upload size is limited by the MAX_CONTENT_LENGTH config setting.
|
|
# * The uploaded files are deleted after a while by systemd tmpfiles.d
|
|
# TODO: validate this setting applies *after* gzip transport compression
|
|
|
|
def render():
|
|
if 'render_job' in session:
|
|
job_queue[session['render_job']].abort()
|
|
session['render_job'] = job_queue.enqueue('render',
|
|
session_id=session['session_id'],
|
|
client=request.remote_addr)
|
|
|
|
@app.route('/upload/svg', methods=['POST'])
|
|
@require_session_id
|
|
def upload_svg():
|
|
upload_form = UploadForm()
|
|
if upload_form.validate_on_submit():
|
|
f = upload_form.upload_file.data
|
|
f.save(tempfile_path('input.svg'))
|
|
session['filename'] = secure_filename(f.filename) # Cache filename for later download
|
|
|
|
render()
|
|
flash(f'SVG file successfully uploaded.', 'success')
|
|
else:
|
|
flash(f'Error uploading SVG file: {"; ".join(msg for elem in upload_form.errors.values() for msg in elem)}', 'error')
|
|
return redirect(url_for('jigerator'))
|
|
|
|
@app.route('/render/download/<file>')
|
|
def render_download(file):
|
|
if file not in ['jig.stl', 'pcb_shape.dxf', 'kicad.zip', 'sources.zip']:
|
|
abort(404)
|
|
|
|
return send_file(tempfile_path(file),
|
|
mimetype='application/zip',
|
|
as_attachment=True,
|
|
attachment_filename=f'{path.splitext(session["filename"])[0]}_pogojig.zip')
|
|
|
|
@app.route('/pogojig_template_empty.svg')
|
|
def static_template():
|
|
return send_file('static/pogojig_template_empty.svg',
|
|
mimetype='application/octet-stream',
|
|
as_attachment=True,
|
|
attachment_filename='pogojig_template_empty.svg')
|
|
|
|
@app.route('/session_reset', methods=['POST'])
|
|
@require_session_id
|
|
def session_reset():
|
|
if 'render_job' in session:
|
|
job_queue[session['render_job']].abort()
|
|
session.clear()
|
|
flash('Session reset', 'success');
|
|
return redirect(url_for('jigerator'))
|
|
|