From: Christian Heller Date: Wed, 12 Jun 2024 08:25:10 +0000 (+0200) Subject: Refactor HTTP module. X-Git-Url: https://plomlompom.com/repos/te"st.html?a=commitdiff_plain;h=11546273042d33ef8557d28c8e19e954591d6ed9;p=plomtask Refactor HTTP module. --- diff --git a/plomtask/http.py b/plomtask/http.py index 583203e..72ad872 100644 --- a/plomtask/http.py +++ b/plomtask/http.py @@ -1,7 +1,7 @@ """Web server stuff.""" from __future__ import annotations from dataclasses import dataclass -from typing import Any +from typing import Any, Callable from base64 import b64encode, b64decode from http.server import BaseHTTPRequestHandler from http.server import HTTPServer @@ -112,32 +112,76 @@ class TaskHandler(BaseHTTPRequestHandler): # pylint: disable=too-many-public-methods server: TaskServer conn: DatabaseConnection - _site: str - _form_data: InputsParser - _params: InputsParser + site: str + form_data: InputsParser + params: InputsParser - def do_GET(self) -> None: - """Handle any GET request.""" - try: - self._init_handling() - if hasattr(self, f'do_GET_{self._site}'): - template = f'{self._site}.html' - ctx = getattr(self, f'do_GET_{self._site}')() - html = self.server.jinja.get_template(template).render(**ctx) - self._send_html(html) - elif '' == self._site: - self._redirect('/day') - else: - raise NotFoundException(f'Unknown page: /{self._site}') - except HandledException as error: - self._send_msg(error, code=error.http_code) - finally: - self.conn.close() + 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')) + + @staticmethod + def _wrap(method: str, not_found_msg: str + ) -> Callable[..., Callable[..., None]]: + def decorator(http_method_handler: Callable[..., str] + ) -> Callable[..., None]: + def wrapper(self: TaskHandler) -> None: + try: + self.conn = DatabaseConnection(self.server.db) + parsed_url = urlparse(self.path) + self.site = path_split(parsed_url.path)[1] + params = parse_qs(parsed_url.query, strict_parsing=True) + self.params = InputsParser(params, False) + handler_name = f'do_{method}_{self.site}' + if hasattr(self, handler_name): + handler = getattr(self, handler_name) + redir_target = http_method_handler(self, handler) + if redir_target: + self.send_response(302) + self.send_header('Location', redir_target) + self.end_headers() + else: + msg = f'{not_found_msg}: {self.site}' + raise NotFoundException(msg) + except HandledException as error: + html = self.server.jinja.\ + get_template('msg.html').render(msg=error) + self.send_html(html, error.http_code) + finally: + self.conn.close() + return wrapper + return decorator + + @_wrap('GET', 'Unknown page') + def do_GET(self, handler: Callable[..., str | dict[str, object]] + ) -> str | None: + """Render page with result of handler, or redirect if result is str.""" + template = f'{self.site}.html' + ctx_or_redir = handler() + if str == type(ctx_or_redir): + return ctx_or_redir + assert isinstance(ctx_or_redir, dict) + html = self.server.jinja.get_template(template).render(**ctx_or_redir) + self.send_html(html) + return None + + @_wrap('POST', 'Unknown POST target') + def do_POST(self, handler: Callable[..., str]) -> str: + """Handle POST with handler, prepare redirection to result.""" + length = int(self.headers['content-length']) + postvars = parse_qs(self.rfile.read(length).decode(), + keep_blank_values=True, strict_parsing=True) + self.form_data = InputsParser(postvars) + redir_target = handler() + self.conn.commit() + return redir_target def _do_GET_calendar(self) -> dict[str, object]: """Show Days from ?start= to ?end=.""" - start = self._params.get_str('start') - end = self._params.get_str('end') + start = self.params.get_str('start') + end = self.params.get_str('end') if not end: end = date_in_n_days(366) ret = Day.by_date_range_with_limits(self.conn, (start, end), 'id') @@ -148,6 +192,10 @@ class TaskHandler(BaseHTTPRequestHandler): today = date_in_n_days(0) return {'start': start, 'end': end, 'days': days, 'today': today} + def do_GET_(self) -> str: + """Return redirect target on GET /.""" + return '/day' + def do_GET_calendar(self) -> dict[str, object]: """Show Days from ?start= to ?end= – normal view.""" return self._do_GET_calendar() @@ -158,8 +206,8 @@ class TaskHandler(BaseHTTPRequestHandler): def do_GET_day(self) -> dict[str, object]: """Show single Day of ?date=.""" - date = self._params.get_str('date', date_in_n_days(0)) - make_type = self._params.get_str('make_type') + date = self.params.get_str('date', date_in_n_days(0)) + make_type = self.params.get_str('make_type') todays_todos = Todo.by_date(self.conn, date) total_effort = 0.0 for todo in todays_todos: @@ -231,7 +279,7 @@ class TaskHandler(BaseHTTPRequestHandler): ids = ids | collect_adoptables_keys(node.children) return ids - id_ = self._params.get_int('id') + id_ = self.params.get_int('id') todo = Todo.by_id(self.conn, id_) todo_steps = [step.todo for step in todo.get_step_tree(set()).children] process_tree = todo.process.get_steps(self.conn, None) @@ -257,11 +305,11 @@ class TaskHandler(BaseHTTPRequestHandler): def do_GET_todos(self) -> dict[str, object]: """Show Todos from ?start= to ?end=, of ?process=, ?comment= pattern""" - sort_by = self._params.get_str('sort_by') - start = self._params.get_str('start') - end = self._params.get_str('end') - process_id = self._params.get_int_or_none('process_id') - comment_pattern = self._params.get_str('comment_pattern') + sort_by = self.params.get_str('sort_by') + start = self.params.get_str('start') + end = self.params.get_str('end') + process_id = self.params.get_int_or_none('process_id') + comment_pattern = self.params.get_str('comment_pattern') todos = [] ret = Todo.by_date_range_with_limits(self.conn, (start, end)) todos_by_date_range, start, end = ret @@ -290,9 +338,9 @@ class TaskHandler(BaseHTTPRequestHandler): def do_GET_conditions(self) -> dict[str, object]: """Show all Conditions.""" - pattern = self._params.get_str('pattern') + pattern = self.params.get_str('pattern') conditions = Condition.matching(self.conn, pattern) - sort_by = self._params.get_str('sort_by') + sort_by = self.params.get_str('sort_by') if sort_by == 'is_active': conditions.sort(key=lambda c: c.is_active) elif sort_by == '-is_active': @@ -307,7 +355,7 @@ class TaskHandler(BaseHTTPRequestHandler): def do_GET_condition(self) -> dict[str, object]: """Show Condition of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') c = Condition.by_id(self.conn, id_, create=True) ps = Process.all(self.conn) return {'condition': c, 'is_new': c.id_ is None, @@ -318,29 +366,29 @@ class TaskHandler(BaseHTTPRequestHandler): def do_GET_condition_titles(self) -> dict[str, object]: """Show title history of Condition of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') condition = Condition.by_id(self.conn, id_) return {'condition': condition} def do_GET_condition_descriptions(self) -> dict[str, object]: """Show description historys of Condition of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') condition = Condition.by_id(self.conn, id_) return {'condition': condition} def do_GET_process(self) -> dict[str, object]: """Show Process of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') process = Process.by_id(self.conn, id_, create=True) - title_64 = self._params.get_str('title_b64') + title_64 = self.params.get_str('title_b64') if title_64: title = b64decode(title_64.encode()).decode() process.title.set(title) owners = process.used_as_step_by(self.conn) - for step_id in self._params.get_all_int('step_to'): + for step_id in self.params.get_all_int('step_to'): owners += [Process.by_id(self.conn, step_id)] preset_top_step = None - for process_id in self._params.get_all_int('has_step'): + for process_id in self.params.get_all_int('has_step'): preset_top_step = process_id return {'process': process, 'is_new': process.id_ is None, 'preset_top_step': preset_top_step, @@ -351,27 +399,27 @@ class TaskHandler(BaseHTTPRequestHandler): def do_GET_process_titles(self) -> dict[str, object]: """Show title history of Process of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') process = Process.by_id(self.conn, id_) return {'process': process} def do_GET_process_descriptions(self) -> dict[str, object]: """Show description historys of Process of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') process = Process.by_id(self.conn, id_) return {'process': process} def do_GET_process_efforts(self) -> dict[str, object]: """Show default effort history of Process of ?id=.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') process = Process.by_id(self.conn, id_) return {'process': process} def do_GET_processes(self) -> dict[str, object]: """Show all Processes.""" - pattern = self._params.get_str('pattern') + pattern = self.params.get_str('pattern') processes = Process.matching(self.conn, pattern) - sort_by = self._params.get_str('sort_by') + sort_by = self.params.get_str('sort_by') if sort_by == 'steps': processes.sort(key=lambda p: len(p.explicit_steps)) elif sort_by == '-steps': @@ -390,44 +438,24 @@ class TaskHandler(BaseHTTPRequestHandler): processes.sort(key=lambda p: p.title.newest) return {'processes': processes, 'sort_by': sort_by, 'pattern': pattern} - def do_POST(self) -> None: - """Handle any POST request.""" - try: - self._init_handling() - length = int(self.headers['content-length']) - postvars = parse_qs(self.rfile.read(length).decode(), - keep_blank_values=True, strict_parsing=True) - self._form_data = InputsParser(postvars) - if hasattr(self, f'do_POST_{self._site}'): - redir_target = getattr(self, f'do_POST_{self._site}')() - self.conn.commit() - else: - msg = f'Page not known as POST target: /{self._site}' - raise NotFoundException(msg) - self._redirect(redir_target) - except HandledException as error: - self._send_msg(error, code=error.http_code) - finally: - self.conn.close() - def do_POST_day(self) -> str: """Update or insert Day of date and Todos mapped to it.""" - date = self._params.get_str('date') + date = self.params.get_str('date') day = Day.by_id(self.conn, date, create=True) - day.comment = self._form_data.get_str('day_comment') + day.comment = self.form_data.get_str('day_comment') day.save(self.conn) - make_type = self._form_data.get_str('make_type') - for process_id in sorted(self._form_data.get_all_int('new_todo')): + make_type = self.form_data.get_str('make_type') + for process_id in sorted(self.form_data.get_all_int('new_todo')): if 'empty' == make_type: process = Process.by_id(self.conn, process_id) todo = Todo(None, process, False, date) todo.save(self.conn) else: Todo.create_with_children(self.conn, process_id, date) - done_ids = self._form_data.get_all_int('done') - comments = self._form_data.get_all_str('comment') - efforts = self._form_data.get_all_str('effort') - for i, todo_id in enumerate(self._form_data.get_all_int('todo_id')): + done_ids = self.form_data.get_all_int('done') + comments = self.form_data.get_all_str('comment') + efforts = self.form_data.get_all_str('effort') + for i, todo_id in enumerate(self.form_data.get_all_int('todo_id')): todo = Todo.by_id(self.conn, todo_id) todo.is_done = todo_id in done_ids if len(comments) > 0: @@ -445,16 +473,16 @@ class TaskHandler(BaseHTTPRequestHandler): """Update Todo and its children.""" # pylint: disable=too-many-locals # pylint: disable=too-many-branches - id_ = self._params.get_int('id') - for _ in self._form_data.get_all_str('delete'): + id_ = self.params.get_int('id') + for _ in self.form_data.get_all_str('delete'): todo = Todo .by_id(self.conn, id_) todo.remove(self.conn) return '/' todo = Todo.by_id(self.conn, id_) - adopted_child_ids = self._form_data.get_all_int('adopt') - processes_to_make_full = self._form_data.get_all_int('make_full') - processes_to_make_empty = self._form_data.get_all_int('make_empty') - fill_fors = self._form_data.get_first_strings_starting('fill_for_') + adopted_child_ids = self.form_data.get_all_int('adopt') + processes_to_make_full = self.form_data.get_all_int('make_full') + processes_to_make_empty = self.form_data.get_all_int('make_empty') + fill_fors = self.form_data.get_first_strings_starting('fill_for_') for v in fill_fors.values(): if v.startswith('make_empty_'): processes_to_make_empty += [int(v[11:])] @@ -483,16 +511,16 @@ class TaskHandler(BaseHTTPRequestHandler): for process_id in processes_to_make_full: made = Todo.create_with_children(self.conn, process_id, todo.date) todo.add_child(made) - effort = self._form_data.get_str('effort', ignore_strict=True) + effort = self.form_data.get_str('effort', ignore_strict=True) todo.effort = float(effort) if effort else None todo.set_conditions(self.conn, - self._form_data.get_all_int('condition')) - todo.set_blockers(self.conn, self._form_data.get_all_int('blocker')) - todo.set_enables(self.conn, self._form_data.get_all_int('enables')) - todo.set_disables(self.conn, self._form_data.get_all_int('disables')) - todo.is_done = len(self._form_data.get_all_str('done')) > 0 - todo.calendarize = len(self._form_data.get_all_str('calendarize')) > 0 - todo.comment = self._form_data.get_str('comment', ignore_strict=True) + self.form_data.get_all_int('condition')) + todo.set_blockers(self.conn, self.form_data.get_all_int('blocker')) + todo.set_enables(self.conn, self.form_data.get_all_int('enables')) + todo.set_disables(self.conn, self.form_data.get_all_int('disables')) + todo.is_done = len(self.form_data.get_all_str('done')) > 0 + todo.calendarize = len(self.form_data.get_all_str('calendarize')) > 0 + todo.comment = self.form_data.get_str('comment', ignore_strict=True) todo.save(self.conn) for condition in todo.enables: condition.save(self.conn) @@ -502,10 +530,10 @@ class TaskHandler(BaseHTTPRequestHandler): def _do_POST_versioned_timestamps(self, cls: Any, attr_name: str) -> str: """Update history timestamps for VersionedAttribute.""" - id_ = self._params.get_int_or_none('id') + id_ = self.params.get_int_or_none('id') item = cls.by_id(self.conn, id_) attr = getattr(item, attr_name) - for k, v in self._form_data.get_first_strings_starting('at:').items(): + for k, v in self.form_data.get_first_strings_starting('at:').items(): old = k[3:] if old[19:] != v: attr.reset_timestamp(old, f'{v}.0') @@ -528,44 +556,44 @@ class TaskHandler(BaseHTTPRequestHandler): def do_POST_process(self) -> str: """Update or insert Process of ?id= and fields defined in postvars.""" # pylint: disable=too-many-branches - id_ = self._params.get_int_or_none('id') - for _ in self._form_data.get_all_str('delete'): + id_ = self.params.get_int_or_none('id') + for _ in self.form_data.get_all_str('delete'): process = Process.by_id(self.conn, id_) process.remove(self.conn) return '/processes' process = Process.by_id(self.conn, id_, create=True) - process.title.set(self._form_data.get_str('title')) - process.description.set(self._form_data.get_str('description')) - process.effort.set(self._form_data.get_float('effort')) + process.title.set(self.form_data.get_str('title')) + process.description.set(self.form_data.get_str('description')) + process.effort.set(self.form_data.get_float('effort')) process.set_conditions(self.conn, - self._form_data.get_all_int('condition')) - process.set_blockers(self.conn, self._form_data.get_all_int('blocker')) - process.set_enables(self.conn, self._form_data.get_all_int('enables')) + self.form_data.get_all_int('condition')) + process.set_blockers(self.conn, self.form_data.get_all_int('blocker')) + process.set_enables(self.conn, self.form_data.get_all_int('enables')) process.set_disables(self.conn, - self._form_data.get_all_int('disables')) - process.calendarize = self._form_data.get_all_str('calendarize') != [] + self.form_data.get_all_int('disables')) + process.calendarize = self.form_data.get_all_str('calendarize') != [] process.save(self.conn) assert isinstance(process.id_, int) steps: list[ProcessStep] = [] - for step_id in self._form_data.get_all_int('keep_step'): - if step_id not in self._form_data.get_all_int('steps'): + for step_id in self.form_data.get_all_int('keep_step'): + if step_id not in self.form_data.get_all_int('steps'): raise BadFormatException('trying to keep unknown step') - for step_id in self._form_data.get_all_int('steps'): - if step_id not in self._form_data.get_all_int('keep_step'): + for step_id in self.form_data.get_all_int('steps'): + if step_id not in self.form_data.get_all_int('keep_step'): continue - step_process_id = self._form_data.get_int( + step_process_id = self.form_data.get_int( f'step_{step_id}_process_id') - parent_id = self._form_data.get_int_or_none( + parent_id = self.form_data.get_int_or_none( f'step_{step_id}_parent_id') steps += [ProcessStep(step_id, process.id_, step_process_id, parent_id)] - for step_id in self._form_data.get_all_int('steps'): - for step_process_id in self._form_data.get_all_int( + for step_id in self.form_data.get_all_int('steps'): + for step_process_id in self.form_data.get_all_int( f'new_step_to_{step_id}'): steps += [ProcessStep(None, process.id_, step_process_id, step_id)] new_step_title = None - for step_identifier in self._form_data.get_all_str('new_top_step'): + for step_identifier in self.form_data.get_all_str('new_top_step'): try: step_process_id = int(step_identifier) steps += [ProcessStep(None, process.id_, step_process_id, @@ -575,12 +603,12 @@ class TaskHandler(BaseHTTPRequestHandler): process.uncache() process.set_steps(self.conn, steps) process.set_step_suppressions(self.conn, - self._form_data. + self.form_data. get_all_int('suppresses')) process.save(self.conn) owners_to_set = [] new_owner_title = None - for owner_identifier in self._form_data.get_all_str('step_of'): + for owner_identifier in self.form_data.get_all_str('step_of'): try: owners_to_set += [int(owner_identifier)] except ValueError: @@ -605,39 +633,14 @@ class TaskHandler(BaseHTTPRequestHandler): def do_POST_condition(self) -> str: """Update/insert Condition of ?id= and fields defined in postvars.""" - id_ = self._params.get_int_or_none('id') - for _ in self._form_data.get_all_str('delete'): + id_ = self.params.get_int_or_none('id') + for _ in self.form_data.get_all_str('delete'): condition = Condition.by_id(self.conn, id_) condition.remove(self.conn) return '/conditions' condition = Condition.by_id(self.conn, id_, create=True) - condition.is_active = self._form_data.get_all_str('is_active') != [] - condition.title.set(self._form_data.get_str('title')) - condition.description.set(self._form_data.get_str('description')) + condition.is_active = self.form_data.get_all_str('is_active') != [] + condition.title.set(self.form_data.get_str('title')) + condition.description.set(self.form_data.get_str('description')) condition.save(self.conn) return f'/condition?id={condition.id_}' - - def _init_handling(self) -> None: - """Our own __init__, as we're not supposed to use the original.""" - self.conn = DatabaseConnection(self.server.db) - parsed_url = urlparse(self.path) - self._site = path_split(parsed_url.path)[1] - params = parse_qs(parsed_url.query, strict_parsing=True) - self._params = InputsParser(params, False) - - def _redirect(self, target: str) -> None: - """Redirect to target.""" - 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)