plomlompom.com Git - plomtask/blob - plomtask/http.py

   1 """Web server stuff."""
   2 from http.server import BaseHTTPRequestHandler
   3 from http.server import HTTPServer
   4 from urllib.parse import urlparse, parse_qs
   5 from os.path import split as path_split
   6 from jinja2 import Environment as JinjaEnv, FileSystemLoader as JinjaFSLoader
   7 from plomtask.days import Day
   8 from plomtask.misc import HandledException
   9 from plomtask.db import DatabaseConnection
  10
  11
  12 class TaskServer(HTTPServer):
  13     """Variant of HTTPServer that knows .jinja as Jinja Environment."""
  14
  15     def __init__(self, templates_dir, db_file, *args, **kwargs):
  16         super().__init__(*args, **kwargs)
  17         self.db = db_file
  18         self.jinja = JinjaEnv(loader=JinjaFSLoader(templates_dir))
  19
  20
  21 class TaskHandler(BaseHTTPRequestHandler):
  22     """Handles single HTTP request."""
  23     server: TaskServer
  24
  25     def do_GET(self):
  26         """Handle any GET request."""
  27         try:
  28             conn, site, params = self._init_handling()
  29             if 'calendar' == site:
  30                 html = self.do_GET_calendar(conn)
  31             elif 'day' == site:
  32                 date = params.get('date', ['2024-01-01'])[0]
  33                 html = self.do_GET_day(conn, date)
  34             else:
  35                 raise HandledException('Test!')
  36             conn.commit()
  37             conn.close()
  38             self._send_html(html)
  39         except HandledException as error:
  40             self._send_msg(error)
  41
  42     def do_GET_calendar(self, conn: DatabaseConnection):
  43         """Show Days."""
  44         return self.server.jinja.get_template('calendar.html').render(
  45                 days=Day.all(conn))
  46
  47     def do_GET_day(self, conn: DatabaseConnection, date: str):
  48         """Show single Day."""
  49         day = Day.by_date(conn, date)
  50         return self.server.jinja.get_template('day.html').render(day=day)
  51
  52     def do_POST(self):
  53         """Handle any POST request."""
  54         try:
  55             conn, site, params = self._init_handling()
  56             length = int(self.headers['content-length'])
  57             postvars = parse_qs(self.rfile.read(length).decode(),
  58                                 keep_blank_values=1)
  59             if 'day' == site:
  60                 date = params.get('date', ['2024-01-01'])[0]
  61                 self.do_POST_day(conn, date, postvars)
  62             conn.commit()
  63             conn.close()
  64             self._redirect('/')
  65         except HandledException as error:
  66             self._send_msg(error)
  67
  68     def do_POST_day(self, conn: DatabaseConnection, date: str, postvars: dict):
  69         """Update or insert Day of date and fields defined in postvars."""
  70         comment = postvars['comment'][0]
  71         day = Day.by_date(conn, date, create=True)
  72         day.comment = comment
  73         day.save(conn)
  74
  75     def _init_handling(self):
  76         conn = DatabaseConnection(self.server.db)
  77         parsed_url = urlparse(self.path)
  78         site = path_split(parsed_url.path)[1]
  79         params = parse_qs(parsed_url.query)
  80         return conn, site, params
  81
  82     def _redirect(self, target: str):
  83         self.send_response(302)
  84         self.send_header('Location', target)
  85         self.end_headers()
  86
  87     def _send_html(self, html: str, code: int = 200):
  88         """Send HTML as proper HTTP response."""
  89         self.send_response(code)
  90         self.end_headers()
  91         self.wfile.write(bytes(html, 'utf-8'))
  92
  93     def _send_msg(self, msg: str, code: int = 400):
  94         """Send message in HTML formatting as HTTP response."""
  95         html = self.server.jinja.get_template('msg.html').render(msg=msg)
  96         self._send_html(html, code)