mirror of
https://github.com/RGBCube/GitHubWrapper
synced 2025-05-17 14:35:09 +00:00
100 lines
No EOL
3.7 KiB
Python
100 lines
No EOL
3.7 KiB
Python
#== http.py ==#
|
|
|
|
import aiohttp
|
|
from types import SimpleNamespace
|
|
import re
|
|
|
|
from .exceptions import *
|
|
from .objects import *
|
|
from .objects import APIOBJECT
|
|
from .urls import *
|
|
|
|
LINK_PARSING_RE = re.compile(r"<(\S+(\S))>; rel=\"(\S+)\"")
|
|
|
|
# aiohttp request tracking / checking bits
|
|
async def on_req_start(
|
|
session: aiohttp.ClientSession,
|
|
ctx: SimpleNamespace,
|
|
params: aiohttp.TraceRequestStartParams
|
|
) -> None:
|
|
"""Before-request hook to make sure we don't overrun the ratelimit."""
|
|
print(repr(session), repr(ctx), repr(params))
|
|
|
|
async def on_req_end(
|
|
session: aiohttp.ClientSession,
|
|
ctx: SimpleNamespace,
|
|
params: aiohttp.TraceRequestEndParams
|
|
) -> None:
|
|
"""After-request hook to adjust remaining requests on this time frame."""
|
|
print(repr(session), repr(ctx), repr(params))
|
|
|
|
trace_config = aiohttp.TraceConfig()
|
|
trace_config.on_request_start.append(on_req_start)
|
|
trace_config.on_request_end.append(on_req_end)
|
|
|
|
async def make_session(*, headers: dict[str, str], authorization: aiohttp.BasicAuth | None) -> aiohttp.ClientSession:
|
|
"""This makes the ClientSession, attaching the trace config and ensuring a UA header is present."""
|
|
if not headers.get('User-Agent'):
|
|
headers['User-Agent'] = 'Github-API-Wrapper'
|
|
|
|
session = aiohttp.ClientSession(
|
|
auth=authorization,
|
|
headers=headers,
|
|
trace_configs=[trace_config]
|
|
)
|
|
return session
|
|
|
|
# pagination
|
|
class Paginator:
|
|
"""This class handles pagination for objects like Repos and Orgs."""
|
|
def __init__(self, session: aiohttp.ClientSession, response: aiohttp.ClientResponse, target_type: str):
|
|
self.session = session
|
|
self.response = response
|
|
self.should_paginate = bool(self.response.headers.get('Link', False))
|
|
types: dict[str, User | ...] = {
|
|
'user': User,
|
|
}
|
|
self.target_type = types[target_type]
|
|
self.pages = {}
|
|
self.is_exhausted = False
|
|
self.current_page = 1
|
|
self.next_page = self.current_page + 1
|
|
self.parse_header(response)
|
|
|
|
async def fetch_page(self, link) -> dict[str, str | int]:
|
|
"""Fetches a specific page and returns the JSON."""
|
|
return await (await self.session.get(link)).json()
|
|
|
|
async def early_return(self) -> list[APIOBJECT]:
|
|
# I don't rightly remember what this does differently, may have a good ol redesign later
|
|
return [self.target_type(data, self.session) for data in await self.response.json()]
|
|
|
|
async def exhaust(self) -> list[APIOBJECT]:
|
|
"""Iterates through all of the pages for the relevant object and creates them."""
|
|
if self.should_paginate:
|
|
return await self.early_return()
|
|
out = []
|
|
for page in range(1, self.max_page+1):
|
|
result = await self.session.get(self.bare_link + str(page))
|
|
out.extend([self.target_type(item, self.session) for item in await result.json()])
|
|
self.is_exhausted = True
|
|
return out
|
|
|
|
def parse_header(self, response: aiohttp.ClientResponse) -> None:
|
|
"""Predicts wether a call will exceed the ratelimit ahead of the call."""
|
|
header = response.headers.get('Link')
|
|
groups = LINK_PARSING_RE.findall(header)
|
|
self.max_page = int(groups[1][1])
|
|
if int(response.headers['X-RateLimit-Remaining']) < self.max_page:
|
|
raise WillExceedRatelimit(response, self.max_page)
|
|
self.bare_link = groups[0][0][:-1]
|
|
|
|
# user-related functions / utils
|
|
GitHubUserData = dict[str, str | int]
|
|
|
|
async def get_user(session: aiohttp.ClientSession, username: str) -> GitHubUserData:
|
|
"""Returns a user's public data in JSON format."""
|
|
result = await session.get(USERS_URL.format(username))
|
|
if result.status == 200:
|
|
return await result.json()
|
|
raise UserNotFound |