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| author | schneefux <schneefux+commit@schneefux.xyz> | 2015-02-21 16:27:24 +0100 |
|---|---|---|
| committer | Timo <Code-WvS@quantentunnel.de> | 2015-02-21 16:27:24 +0100 |
| commit | 40f499401313ebcd9f1d679ed61954b306f738f3 (patch) | |
| tree | 4cd444213b48fea088ae061c9f2f0cb8056afac2 | |
| download | snapmesh-40f499401313ebcd9f1d679ed61954b306f738f3.tar.gz snapmesh-40f499401313ebcd9f1d679ed61954b306f738f3.zip | |
first commit
| -rw-r--r-- | LICENSE | 674 | ||||
| -rw-r--r-- | README.md | 33 | ||||
| -rwxr-xr-x | snapext.py | 173 | ||||
| -rwxr-xr-x | snapmesh.py | 43 | ||||
| -rw-r--r-- | snapmesh.xml | 1 | ||||
| -rwxr-xr-x | snapmesh_plain.py | 62 |
6 files changed, 986 insertions, 0 deletions
@@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. We, the Free Software Foundation, use the +GNU General Public License for most of our software; it applies also to +any other work released this way by its authors. You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<http://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<http://www.gnu.org/philosophy/why-not-lgpl.html>. diff --git a/README.md b/README.md new file mode 100644 index 0000000..c6033f0 --- /dev/null +++ b/README.md @@ -0,0 +1,33 @@ +Snapmesh +======== + +Deutsch +------- +Einfacher Python-Server, der Daten empfängt, speichert und sendet. Snap!-Blöcke inbegriffen. +Snapmesh ist abhängig von Python2 und dem Modul snapext. `snapmesh_plain.py` ist ein Python2-Server ohne die snapext-Abhängigkeit (jedoch nicht auf dem neuesten Stand). +Zur Ausführung werden Rootrechte benötigt, alternativ kann der Port (Standard 80) geändert werden. +Unter Windows sollte zudem die snapext durch `snapext.py` ersetzt werden. + +Folgende Befehle sind via HTTP verfügbar: + * `/`: Testen des Onlinestatus + * `/check?key=foo` gibt zurück, ob `foo` gespeichert ist + * `/get?key=foo` gibt den als `foo` gespeicherten Wert + * `/put?key=foo&value=bar` speichert `bar` in `foo` + * `/list` listet alle vorhandenen Keys + * `/bye` beendet den Server + +English +------- + +Dead-simple python server that receives, stores and sends data. Snap! blocks included. +Snapmesh depends on Python2 and the python module snapext. `snapmesh_plain.py` ist a Python2 server without the snapext dependency (not up to date, though). +To run you need root or you could also change the port (default 80). +On Windows replace snapext by `snapext.py`. + +There are the following commands available through HTTP: + * `/`: test if online + * `/check?key=foo` tests wheather `foo` is saved + * `/get?key=foo` returns the value saved for `foo` + * `/put?key=foo&value=bar` saves `bar` to `foo` + * `/list` lists all keys + * `/bye` shuts the server down diff --git a/snapext.py b/snapext.py new file mode 100755 index 0000000..04a1977 --- /dev/null +++ b/snapext.py @@ -0,0 +1,173 @@ +# Copyright (C) 2013 Connor Hudson, Tim Radvan + +"""Module for writing Snap! extensions. + +See example.py for usage. + +Handler functions should return unicode. Non-unicode strings are assumed to +be UTF-8 encoded. + +""" + +__version__ = '0.1.4' + +import inspect +try: + from cStringIO import StringIO +except ImportError: + from StringIO import StringIO +from urlparse import urlsplit, parse_qs +from SimpleHTTPServer import SimpleHTTPRequestHandler +from SocketServer import TCPServer + + + +class SnapHandler(SimpleHTTPRequestHandler): + """An HTTP handler with Flask-style routing.""" + + routes = {} + + special = { + 'true': True, + 'True': True, + 'false': False, + 'False': False, + } + + @classmethod + def prettify_arg(cls, value): + value = value.decode('utf-8') + value = cls.special.get(value, value) + if isinstance(value, bool): + return value + try: + return int(value) + except ValueError: + try: + return float(value) + except ValueError: + return value # str + + def send_head(self): + split_url = urlsplit(self.path) + path = split_url.path + params = parse_qs(split_url.query) + params = dict((k, self.prettify_arg(v[0])) for (k, v) in params.items()) + print 'params', params + is_browser = "text/html" in self.headers['Accept'] + + (status, mime_type, response) = self.get_response(path, params, + is_browser) + if isinstance(response, str): + response = response.decode('utf-8') + else: + response = unicode(response) + + if is_browser and mime_type == "text/plain": + mime_type = "text/html" + response = u"""{response}""".format(title=path, response=response) + + if isinstance(response, unicode): + response = response.encode('utf-8') + + self.send_response(status) + self.send_header("Content-Type", mime_type) + self.send_header("Content-Length", str(len(response))) + self.send_header("Access-Control-Allow-Origin", "*") + self.end_headers() + + return StringIO(response) + + def get_response(self, path, params, is_browser): + mime_type = "text/plain" + if path in self.routes: + f = self.routes[path] + try: + response = f(**params) + if response is None: + response = "" + elif response is True: + response = "true" + elif response is False: + response = "false" + return (200, mime_type, response) + except KeyboardInterrupt: + raise + except TypeError, e: + for param in inspect.getargspec(f).args: + if param not in params: + response = "ERROR: Missing argument %r" % param + return (400, mime_type, response) + else: + raise + elif path == '/': + return self.index(is_browser) + elif path == '/crossdomain.xml': + return """ +<?xml version="1.0"?> +<cross-domain-policy> + <allow-access-from domain="*" to-ports="*"/> +</cross-domain-policy> + """ + else: + return (404, mime_type, "ERROR: Route not found") + + def index(self, is_browser): + """Return the list of routes in plain text format.""" + if is_browser: + html = u"""<!DOCTYPE html> + <meta charset="utf8"> + <title>/</title> + <ul> + """ + for path in sorted(self.routes): + f = self.routes[path] + params = inspect.getargspec(f).args + qs = "&".join("%s=" % p for p in params) + if qs: + path += "?" + qs + html += u'<li><a href="{path}">{path}</a>'.format(path=path) + return (200, "text/html", html) + else: + response = "\n".join(sorted(self.routes)) + return (200, "text/plain", response) + + @classmethod + def add_route(self, path, f): + """Same as the :meth:`route` decorator. + + @handler.route('/') + def index(): + pass + + Is equivalent to: + + def index(): + pass + handler.add_url_rule('/', 'index', index) + + """ + if path in self.routes and path != '/': + raise ValueError, "route already exists" + self.routes[path] = f + + @classmethod + def route(self, path, **options): + def decorator(f): + self.add_route(path, f, **options) + return f + return decorator + + +class Server(TCPServer): + allow_reuse_address = True + + +def main(handler, port, silent=False): + """Runs the server for Snap! to connect to.""" + httpd = Server(("", port), handler) + if not silent: + print "Serving at port %i" % port + print "Go ahead and launch Snap!" + httpd.serve_forever() + diff --git a/snapmesh.py b/snapmesh.py new file mode 100755 index 0000000..d632a59 --- /dev/null +++ b/snapmesh.py @@ -0,0 +1,43 @@ +#!/usr/bin/env python2 +import snapext, os +handler = snapext.SnapHandler + +data = dict() + +@handler.route('/') +def main(): + return 'Ich bin online!' + +@handler.route('/check') +def key_in_data(key): + return key in data + +@handler.route('/get') +def get_data(key): + return data[key] if key_in_data(key) else '' + +@handler.route('/put') +def set_data(key, value): + data[key] = value + +@handler.route('/list') +def list_data(): + return '\n'.join(data.keys()) + +@handler.route('/bye') +def shutdown(): + with open('data', 'w+') as _: + _.write(str(data)) + exit(1) + #os.system('shutdown -hP now') + +if __name__ == '__main__': + if os.path.isfile('data'): + with open('data') as _: + s = _.read() + try: + data = eval(_.read()) + except: + pass + + snapext.main(handler, 80) diff --git a/snapmesh.xml b/snapmesh.xml new file mode 100644 index 0000000..8a9aa68 --- /dev/null +++ b/snapmesh.xml @@ -0,0 +1 @@ +<blocks app="Snap! 4.0, http://snap.berkeley.edu" version="1"><block-definition s="sende %'val' als %'key' in den Speicher von %'addr'" type="command" category="variables"><header></header><code></code><inputs><input type="%s"></input><input type="%s"></input><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportURL"><block s="reportJoinWords"><list><block var="addr"/><l>/put?value=</l><block var="val"/><l>&key=</l><block var="key"/></list></block></block></block></script></block-definition><block-definition s="%'key' im Speicher von %'addr' vorhanden?" type="predicate" category="variables"><header></header><code></code><inputs><input type="%s"></input><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportEquals"><block s="reportURL"><block s="reportJoinWords"><list><block var="addr"/><l>/check?key=</l><block var="key"/></list></block></block><l>True</l></block></block></script></block-definition><block-definition s="%'key' aus dem Speicher von %'addr'" type="reporter" category="variables"><header></header><code></code><inputs><input type="%s"></input><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportURL"><block s="reportJoinWords"><list><block var="addr"/><l>/get?key=</l><block var="key"/></list></block></block></block></script></block-definition><block-definition s="alle Variablennamen aus dem Speicher von %'addr'" type="reporter" category="variables"><header></header><code></code><inputs><input type="%txt"></input></inputs><script><block s="doReport"><block s="reportURL"><block s="reportJoinWords"><list><block var="addr"/><l>/list</l></list></block></block></block></script></block-definition></blocks>
\ No newline at end of file diff --git a/snapmesh_plain.py b/snapmesh_plain.py new file mode 100755 index 0000000..f89eebf --- /dev/null +++ b/snapmesh_plain.py @@ -0,0 +1,62 @@ +#!/usr/bin/env python2 +#Snap! extension base by Technoboy10 +#features by Timo + +data = dict() + +import SimpleHTTPServer +class CORSHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler): + def send_head(self): + path = self.path + ospath = os.path.abspath('') + if '/put' in path: + regex = re.compile("\/put\?value=(.*?)&key=(.*)") + m = regex.match(path) + value = urllib2.unquote(m.group(1)) + key = urllib2.unquote(m.group(2)) + data[key] = value + return + + if '/check' in path: + regex = re.compile("\/check\?key=(.*)") + m = regex.match(path) + key = urllib2.unquote(m.group(1)) + f = open(ospath + '/return', 'w+') + f.write(str(key in data)) + f.close() + if '/get' in path: + regex = re.compile("\/get\?key=(.*)") + m = regex.match(path) + key = urllib2.unquote(m.group(1)) + if not key in data: + return '' + + f = open(ospath + '/return', 'w+') + f.write(str(data[key])) + f.close() + if '/list' in path: + f = open(ospath + '/return', 'w+') + f.write(data.keys().join('\n')) + f.close() + + f = open(ospath + '/return', 'rb') + ctype = self.guess_type(ospath + '/return') + self.send_response(200) + self.send_header("Content-type", ctype) + fs = os.fstat(f.fileno()) + self.send_header("Content-Length", str(fs[6])) + self.send_header("Last-Modified", self.date_time_string(fs.st_mtime)) + self.send_header("Access-Control-Allow-Origin", "*") + self.end_headers() + return f + +if __name__ == "__main__": + import os + import re + import SocketServer + import urllib2 + PORT = 9876 #Pick a port number + + Handler = CORSHTTPRequestHandler + httpd = SocketServer.TCPServer(("", PORT), Handler) + httpd.serve_forever() |
