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 = DatabaseConnection(self.server.db)
  29             parsed_url = urlparse(self.path)
  30             site = path_split(parsed_url.path)[1]
  31             params = parse_qs(parsed_url.query)
  32             if 'calendar' == site:
  33                 html = self.do_GET_calendar(conn)
  34             elif 'day' == site:
  35                 date = params.get('date', ['2024-01-01'])[0]
  36                 html = self.do_GET_day(conn, date)
  37             else:
  38                 raise HandledException('Test!')
  39             conn.commit()
  40             conn.close()
  41             self._send_html(html)
  42         except HandledException as error:
  43             self._send_msg(error)
  44
  45     def do_GET_calendar(self, conn: DatabaseConnection):
  46         """Show Days."""
  47         return self.server.jinja.get_template('calendar.html').render(
  48                 days=Day.all(conn))
  49
  50     def do_GET_day(self, conn: DatabaseConnection, date: str):
  51         """Show single Day."""
  52         day = Day.by_date(conn, date)
  53         return self.server.jinja.get_template('day.html').render(day=day)
  54
  55     def do_POST(self):
  56         """Handle any POST request."""
  57         try:
  58             conn = DatabaseConnection(self.server.db)
  59             parsed_url = urlparse(self.path)
  60             site = path_split(parsed_url.path)[1]
  61             params = parse_qs(parsed_url.query)
  62             length = int(self.headers['content-length'])
  63             postvars = parse_qs(self.rfile.read(length).decode(),
  64                                 keep_blank_values=1)
  65             if 'day' == site:
  66                 date = params.get('date', ['2024-01-01'])[0]
  67                 self.do_POST_day(conn, date, postvars)
  68             conn.commit()
  69             conn.close()
  70             self._redirect('/')
  71         except HandledException as error:
  72             self._send_msg(error)
  73
  74     def do_POST_day(self, conn: DatabaseConnection, date: str, postvars: dict):
  75         """Update or insert Day of date and fields defined in postvars."""
  76         comment = postvars['comment'][0]
  77         day = Day.by_date(conn, date)
  78         if day:
  79             day.comment = comment
  80         else:
  81             day = Day(date, comment)
  82         day.save(conn)
  83
  84     def _redirect(self, target: str):
  85         self.send_response(302)
  86         self.send_header('Location', target)
  87         self.end_headers()
  88
  89     def _send_html(self, html: str, code: int = 200):
  90         """Send HTML as proper HTTP response."""
  91         self.send_response(code)
  92         self.end_headers()
  93         self.wfile.write(bytes(html, 'utf-8'))
  94
  95     def _send_msg(self, msg: str, code: int = 400):
  96         """Send message in HTML formatting as HTTP response."""
  97         html = self.server.jinja.get_template('msg.html').render(msg=msg)
  98         self._send_html(html, code)