"""Web server stuff."""
+from typing import Any
from http.server import BaseHTTPRequestHandler
from http.server import HTTPServer
from urllib.parse import urlparse, parse_qs
from os.path import split as path_split
from jinja2 import Environment as JinjaEnv, FileSystemLoader as JinjaFSLoader
-from plomtask.days import Day
-from plomtask.misc import HandledException
-from plomtask.db import DatabaseConnection
+from plomtask.days import Day, todays_date
+from plomtask.exceptions import HandledException, BadFormatException, \
+ NotFoundException
+from plomtask.db import DatabaseConnection, DatabaseFile
+from plomtask.processes import Process
+
+TEMPLATES_DIR = 'templates'
class TaskServer(HTTPServer):
"""Variant of HTTPServer that knows .jinja as Jinja Environment."""
- def __init__(self, templates_dir, db_file, *args, **kwargs):
+ def __init__(self, db_file: DatabaseFile,
+ *args: Any, **kwargs: Any) -> None:
super().__init__(*args, **kwargs)
self.db = db_file
- self.jinja = JinjaEnv(loader=JinjaFSLoader(templates_dir))
+ self.jinja = JinjaEnv(loader=JinjaFSLoader(TEMPLATES_DIR))
+
+
+class PostvarsParser:
+ """Postvars wrapper for validating and retrieving posted form data."""
+
+ def __init__(self, postvars: dict[str, list[str]]) -> None:
+ self.postvars = postvars
+
+ def get_str(self, key: str) -> str:
+ """Retrieve string value of key from self.postvars."""
+ if key not in self.postvars:
+ raise BadFormatException(f'missing value for form field: {key}')
+ return self.postvars[key][0]
+
+ def get_float(self, key: str) -> float:
+ """Retrieve float value of key from self.postvars."""
+ val = self.get_str(key)
+ try:
+ return float(val)
+ except ValueError as e:
+ msg = f'cannot float form field value: {val}'
+ raise BadFormatException(msg) from e
class TaskHandler(BaseHTTPRequestHandler):
"""Handles single HTTP request."""
server: TaskServer
- def send_html(self, html: str, code: int = 200):
- """Send HTML as proper HTTP response."""
- self.send_response(code)
- self.end_headers()
- self.wfile.write(bytes(html, 'utf-8'))
-
- def send_msg(self, msg: str, code: int = 400):
- """Send message in HTML formatting as HTTP response."""
- html = self.server.jinja.get_template('msg.html').render(msg=msg)
- self.send_html(html, code)
-
- def do_GET(self):
+ def do_GET(self) -> None:
"""Handle any GET request."""
try:
- conn = DatabaseConnection(self.server.db)
- parsed_url = urlparse(self.path)
- site = path_split(parsed_url.path)[1]
- params = parse_qs(parsed_url.query)
+ conn, site, params = self._init_handling()
if 'calendar' == site:
- html = self.do_GET_calendar(conn)
+ start = params.get('start', [''])[0]
+ end = params.get('end', [''])[0]
+ html = self.do_GET_calendar(conn, start, end)
elif 'day' == site:
- date = params.get('date', ['2024-01-01'])[0]
+ date = params.get('date', [todays_date()])[0]
html = self.do_GET_day(conn, date)
+ elif 'process' == site:
+ id_ = params.get('id', [None])[0]
+ try:
+ id__ = int(id_) if id_ else None
+ except ValueError as e:
+ raise BadFormatException(f'Bad ?id= value: {id_}') from e
+ html = self.do_GET_process(conn, id__)
+ elif 'processes' == site:
+ html = self.do_GET_processes(conn)
+ elif '' == site:
+ self._redirect('/day')
+ return
else:
- raise HandledException('Test!')
- conn.commit()
+ raise NotFoundException(f'Unknown page: /{site}')
conn.close()
- self.send_html(html)
+ self._send_html(html)
except HandledException as error:
- self.send_msg(error)
+ self._send_msg(error, code=error.http_code)
- def do_GET_calendar(self, conn: DatabaseConnection):
+ def do_GET_calendar(self, conn: DatabaseConnection,
+ start: str, end: str) -> str:
"""Show Days."""
+ days = Day.all(conn, date_range=(start, end), fill_gaps=True)
return self.server.jinja.get_template('calendar.html').render(
- days=Day.all(conn))
+ days=days, start=start, end=end)
- def do_GET_day(self, conn: DatabaseConnection, date: str):
+ def do_GET_day(self, conn: DatabaseConnection, date: str) -> str:
"""Show single Day."""
- day = Day.by_date(conn, date)
+ day = Day.by_date(conn, date, create=True)
return self.server.jinja.get_template('day.html').render(day=day)
+
+ def do_GET_process(self, conn: DatabaseConnection, id_: int | None) -> str:
+ """Show process of id_."""
+ return self.server.jinja.get_template('process.html').render(
+ process=Process.by_id(conn, id_, create=True))
+
+ def do_GET_processes(self, conn: DatabaseConnection) -> str:
+ """Show all Processes."""
+ return self.server.jinja.get_template('processes.html').render(
+ processes=Process.all(conn))
+
+ def do_POST(self) -> None:
+ """Handle any POST request."""
+ try:
+ conn, site, params = self._init_handling()
+ length = int(self.headers['content-length'])
+ postvars = parse_qs(self.rfile.read(length).decode(),
+ keep_blank_values=True)
+ form_data = PostvarsParser(postvars)
+ if 'day' == site:
+ date = params.get('date', [''])[0]
+ self.do_POST_day(conn, date, form_data)
+ elif 'process' == site:
+ id_ = params.get('id', [''])[0]
+ try:
+ id__ = int(id_) if id_ else None
+ except ValueError as e:
+ raise BadFormatException(f'Bad ?id= value: {id_}') from e
+ self.do_POST_process(conn, id__, form_data)
+ conn.commit()
+ conn.close()
+ self._redirect('/')
+ except HandledException as error:
+ self._send_msg(error, code=error.http_code)
+
+ def do_POST_day(self, conn: DatabaseConnection, date: str,
+ form_data: PostvarsParser) -> None:
+ """Update or insert Day of date and fields defined in postvars."""
+ day = Day.by_date(conn, date, create=True)
+ day.comment = form_data.get_str('comment')
+ day.save(conn)
+
+ def do_POST_process(self, conn: DatabaseConnection, id_: int | None,
+ form_data: PostvarsParser) -> None:
+ """Update or insert Process of id_ and fields defined in postvars."""
+ process = Process.by_id(conn, id_, create=True)
+ process.title.set(form_data.get_str('title'))
+ process.description.set(form_data.get_str('description'))
+ process.effort.set(form_data.get_float('effort'))
+ process.save(conn)
+
+ def _init_handling(self) -> \
+ tuple[DatabaseConnection, str, dict[str, list[str]]]:
+ conn = DatabaseConnection(self.server.db)
+ parsed_url = urlparse(self.path)
+ site = path_split(parsed_url.path)[1]
+ params = parse_qs(parsed_url.query)
+ return conn, site, params
+
+ def _redirect(self, target: str) -> None:
+ self.send_response(302)
+ self.send_header('Location', target)
+ self.end_headers()
+
+ def _send_html(self, html: str, code: int = 200) -> None:
+ """Send HTML as proper HTTP response."""
+ self.send_response(code)
+ self.end_headers()
+ self.wfile.write(bytes(html, 'utf-8'))
+
+ def _send_msg(self, msg: Exception, code: int = 400) -> None:
+ """Send message in HTML formatting as HTTP response."""
+ html = self.server.jinja.get_template('msg.html').render(msg=msg)
+ self._send_html(html, code)
projects / plomtask / blobdiff