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📚 The CoCalc Library - books, templates and other resources

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License: OTHER
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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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# This runs a demo-webservice inside SMC.

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# Run by typing

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#      sage -python main.py

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import json

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import os

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from flask import Flask, request

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app = Flask(__name__)

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#app.debug = True  # Uncomment this if you wish to debug

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port = 8765

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info_path = os.path.join(os.environ['HOME'], ".smc", "info.json")

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info = json.load(open(info_path, 'r'))

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base_url = "/%s/port/%s" % (info['project_id'], port)

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html_template = """

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<!DOCTYPE html

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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

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<html>

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<head>

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<title>%(title)s</title>

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</head>

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<body>

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<p>%(content)s</p>

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</body>

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</html>

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"""

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@app.route(base_url + '/', strict_slashes=False)

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def info():

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    content = """<p>SMC Webservice running</p>

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    <p><b>Routes:</b></p>

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    <ul>

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    <li><a href="%(route)s/">%(route)s/ - list of routes</a></li>

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    <li><a href="%(route)s/get">%(route)s/get - simple get request</a></li>

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    <li><a href="%(route)s/header">%(route)s/header - header information</a></li>

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    </ul>""" % {

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        'route': base_url

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    }

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    return html_template % {'title': 'Info', 'content': content}

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@app.route(base_url + '/get', methods=['GET'])

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def get_something():

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    content = """<p>Try something like <a href="%(base_url)s/get?something=foo">%(base_url)s/get?something=foo</a></p>""" % {

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        'base_url': base_url

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    }

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    if request.method == 'GET':

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        something = request.args.get("something", "")

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        if len(something) > 0:

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            content = "Got " + something

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    return html_template % {'title': 'Info', 'content': content}

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@app.route(base_url + '/header', methods=['GET'])

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def get_header():

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    header = ''

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    for k, v in request.headers.iteritems():

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        header += '{} = {}\n'.format(k, v)

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    content = '''

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    <div>The header information I got about you ...</div>

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    <pre>

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    {header}

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    </pre>

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    '''.format(header=header)

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    return content

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if __name__ == "__main__":

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    try:

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        info = json.load(

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            open(os.path.join(os.environ['HOME'], ".smc", "info.json"), 'r'))

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        print("Try to open https://cocalc.com" + base_url + '/')

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        app.run(host='0.0.0.0', port=port)

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        import sys

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        sys.exit(0)

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    except Exception as e:

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        print "... failed, try another port (change the port= line in the script) \n%s" % e

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