webservice demo (currently not working)

Author: haraldschilly

webservice/Readme.md

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+Webservice
+----------
+
+This is a small demo how a web-service can be started inside SMC.
+See `main.py` for more details.
+
+Start it in the terminal via:
+
+`$ sage -python main.py`
+

webservice/main.py

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+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# This runs a demo-webservice inside SMC
+
+def get_tun0ip():
+    import subprocess as sp
+    ifconfig = sp.check_output(["ifconfig", "tun0" ])
+    tun0ip = ifconfig.split("\n")[1].split(":")[1].split(" ")[0]
+    print "tun0 IP address is '%s'" % tun0ip
+    return tun0ip
+
+def projectid():
+    import json
+    import os
+    info = json.load(open(os.path.join("..", ".sagemathcloud", "info.json"), 'r'))
+    return info['project_id']
+
+from flask import Flask
+app = Flask(__name__)
+
+@app.route('/')
+def hello_world():
+    from datetime import datetime
+    return 'Hello World!\nThe current time is %s' % datetime.utcnow()
+
+if __name__ == "__main__":
+    for i in range(10):
+        import random
+        port = random.randint(2000, 32000)
+        try:
+            print "Tying to open https://cloud.sagemath.org/%s/port/%s/" % (projectid(), port)
+            #app.run(host = get_tun0ip(), port = port)
+            app.run(host = "0.0.0.0", port = port)
+            import sys; sys.exit(0)
+        except Exception as e:
+            print "... failed, trying other port\n%s" % e

webservice/run.term

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+41e9336f-ca0e-457a-a0cc-9b4e8841c6be