+ try:
+ parsed_url = urlparse(self.path)
+ params = parse_qs(parsed_url.query)
+ start = int(params.get('start', ['0'])[0])
+ end = int(params.get('end', ['0'])[0])
+ db = Database()
+ page = self.header
+ if parsed_url.path == '/balance':
+ stop = params.get('stop', [None])[0]
+ page += self.balance_as_html(db, stop)
+ elif parsed_url.path == '/add_free':
+ page += self.add_free(db, start, end)
+ elif parsed_url.path == '/add_structured':
+ page += self.add_structured(db, start, end)
+ elif parsed_url.path == '/copy_free':
+ page += self.add_free(db, start, end, copy=True)
+ elif parsed_url.path == '/copy_structured':
+ page += self.add_structured(db, start, end, copy=True)
+ elif parsed_url.path == '/move_up':
+ nth = self.move_up(db, start, end)
+ self.send_code_and_headers(302, [('Location', f'/#{nth}')])
+ return
+ elif parsed_url.path == '/move_down':
+ nth = self.move_down(db, start, end)
+ self.send_code_and_headers(302, [('Location', f'/#{nth}')])
+ return
+ else:
+ page += self.ledger_as_html(db)
+ page += self.footer
+ self.send_HTML(page)
+ except HandledException as e:
+ self.fail_400(e)
+
+ def fail_400(self, e):
+ page = f'{self.header}ERROR: {e}{self.footer}'
+ self.send_HTML(page, 400)
+
+ def send_HTML(self, html, code=200):
+ self.send_code_and_headers(code, [('Content-type', 'text/html')])
+ self.wfile.write(bytes(html, "utf-8"))
+
+ def send_code_and_headers(self, code, headers=[]):
+ self.send_response(code)
+ for fieldname, content in headers:
+ self.send_header(fieldname, content)