jtanx/display.py

## display.py
from flask import Flask, redirect, url_for, render_template_string, send_from_directory, make_response, Response
from functools import wraps, update_wrapper
from datetime import datetime
from zipfile import ZipFile
import os
import sys

app = Flask(__name__)

arch = None
imgs = [x for x in sorted(os.listdir('.')) if x.endswith('.jpg') or x.endswith('.png')]


def nocache(view):
    @wraps(view)
    def no_cache(*args, **kwargs):
        response = make_response(view(*args, **kwargs))
        response.headers['Last-Modified'] = datetime.now()
        response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
        response.headers['Pragma'] = 'no-cache'
        response.headers['Expires'] = '-1'
        return response

    return update_wrapper(no_cache, view)


@app.route('/img/<int:id>')
@nocache
def img(id):
    id = min(max(id, 0), len(imgs) - 1)
    if arch is None:
        return send_from_directory('.', imgs[id])
    with arch.open(imgs[id]) as fp:
        return Response(fp.read(), mimetype='image/jpeg' if imgs[id].endswith('.jpg') else 'image/png')


@app.route('/view/<int:id>')
@nocache
def view(id):
    id = max(id, 0)
    mid = len(imgs) - 1
    if id > mid:
        return redirect(url_for('view', id=mid), code=302)
    return render_template_string(
        '''
    <html>
    <body>
    <h1>{{id}}/{{max}}</h1>
    <img src="{{img}}" style="margin-left: auto; margin-right: auto; display:block; width:70%;" onclick="go(false)" />
    </body>
    <script>
    'use strict';

    function go(left) {
        let id = parseInt(window.location.pathname.split('/')[2], 10);
        if (left) {
            --id;
            if (id < 0) {
              return;
            }
        } else {
            ++id;
        }
        window.location.href = '/view/' + id
    }

    document.addEventListener('keypress', (e) => {
      if (e.keyCode == 37 || e.charCode == 97 || e.charCode == 65) { //left
        go(true)
      } else if (e.keyCode == 39 || e.charCode == 100 || e.charCode == 68) { //right
        go(false)
      }
      console.log(e)
    });
    </script>
    </html>
    ''',
        id=id, max=mid,
        img=url_for('img', id=id))


# fully sick subwoofa
@app.route('/')
@nocache
def index():
    return redirect(url_for('view', id=0), code=302)


if __name__ == "__main__":
    if len(sys.argv) > 1:
        arch = ZipFile(sys.argv[1])
        imgs = [img for img in arch.namelist() if (img.endswith('.jpg') or img.endswith('.png'))]

    app.run()
	from flask import Flask, redirect, url_for, render_template_string, send_from_directory, make_response, Response
	from functools import wraps, update_wrapper
	from datetime import datetime
	from zipfile import ZipFile
	import os
	import sys

	app = Flask(__name__)

	arch = None
	imgs = [x for x in sorted(os.listdir('.')) if x.endswith('.jpg') or x.endswith('.png')]


	def nocache(view):
	@wraps(view)
	def no_cache(args, *kwargs):
	response = make_response(view(args, *kwargs))
	response.headers['Last-Modified'] = datetime.now()
	response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
	response.headers['Pragma'] = 'no-cache'
	response.headers['Expires'] = '-1'
	return response

	return update_wrapper(no_cache, view)


	@app.route('/img/<int:id>')
	@nocache
	def img(id):
	id = min(max(id, 0), len(imgs) - 1)
	if arch is None:
	return send_from_directory('.', imgs[id])
	with arch.open(imgs[id]) as fp:
	return Response(fp.read(), mimetype='image/jpeg' if imgs[id].endswith('.jpg') else 'image/png')


	@app.route('/view/<int:id>')
	@nocache
	def view(id):
	id = max(id, 0)
	mid = len(imgs) - 1
	if id > mid:
	return redirect(url_for('view', id=mid), code=302)
	return render_template_string(
	'''
	<html>
	<body>
	<h1>{{id}}/{{max}}</h1>
	<img src="{{img}}" style="margin-left: auto; margin-right: auto; display:block; width:70%;" onclick="go(false)" />
	</body>
	<script>
	'use strict';

	function go(left) {
	let id = parseInt(window.location.pathname.split('/')[2], 10);
	if (left) {
	--id;
	if (id < 0) {
	return;
	}
	} else {
	++id;
	}
	window.location.href = '/view/' + id
	}

	document.addEventListener('keypress', (e) => {
	if (e.keyCode == 37 \|\| e.charCode == 97 \|\| e.charCode == 65) { //left
	go(true)
	} else if (e.keyCode == 39 \|\| e.charCode == 100 \|\| e.charCode == 68) { //right
	go(false)
	}
	console.log(e)
	});
	</script>
	</html>
	''',
	id=id, max=mid,
	img=url_for('img', id=id))


	# fully sick subwoofa
	@app.route('/')
	@nocache
	def index():
	return redirect(url_for('view', id=0), code=302)


	if __name__ == "__main__":
	if len(sys.argv) > 1:
	arch = ZipFile(sys.argv[1])
	imgs = [img for img in arch.namelist() if (img.endswith('.jpg') or img.endswith('.png'))]

	app.run()