69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
"""
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A simple guestbook application that accepts and displays text messages.
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This is an example of how to return a 10 INPUT request to the client and
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retrieve their response by parsing the URL query string.
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This example stores the guestbook inside of a persistent sqlite database.
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Because each request will run inside of a separate thread, we must create a new
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connection object inside of the request handler instead of re-using a global
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database connection. This thread-safety can be disabled in sqlite3 by using the
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check_same_thread=False argument, but then it's up to you to ensure that only
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connection request is writing to the database at any given time.
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"""
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import sqlite3
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from datetime import datetime
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from jetforce import GeminiServer, JetforceApplication, Response, Status
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DB = "/tmp/guestbook.sqlite"
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SCHEMA = """
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CREATE TABLE IF NOT EXISTS guestbook (
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ip_address TEXT,
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created_at timestamp,
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message TEXT
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)
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"""
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with sqlite3.connect(DB) as c:
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c.execute(SCHEMA)
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app = JetforceApplication()
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@app.route("", strict_trailing_slash=False)
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def index(request):
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lines = ["Guestbook", "=>/submit Sign the Guestbook"]
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with sqlite3.connect(DB, detect_types=sqlite3.PARSE_DECLTYPES) as c:
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for row in c.execute("SELECT * FROM guestbook ORDER BY created_at"):
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ip_address, created_at, message = row
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line = f"{created_at:%Y-%m-%d} - [{ip_address}] {message}"
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lines.append("")
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lines.append(line)
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lines.extend(["", "...", ""])
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body = "\n".join(lines)
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return Response(Status.SUCCESS, "text/gemini", body)
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@app.route("/submit")
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def submit(request):
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if request.query:
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message = request.query[:256]
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created = datetime.now()
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ip_address = request.environ["REMOTE_HOST"]
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with sqlite3.connect(DB) as c:
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values = (ip_address, created, message)
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c.execute("INSERT INTO guestbook VALUES (?, ?, ?)", values)
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return Response(Status.REDIRECT_TEMPORARY, "")
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else:
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return Response(Status.INPUT, "Enter your message (max 256 characters)")
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if __name__ == "__main__":
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server = GeminiServer(app)
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server.run()
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