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8
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v0.1.6
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c65326882a
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7a157efc16 |
@@ -13,16 +13,16 @@ send to the core — inheriting rotation, proxy, retry, and result for free.
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## Install
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## Install
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```
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```
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aiowebhooks @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v0.1.6
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aiowebhooks @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v1.0.2
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# discord embeds / identity helpers need the extra:
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# discord embeds / identity helpers need the extra:
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aiowebhooks[discord] @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v0.1.6
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aiowebhooks[discord] @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v1.0.2
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```
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```
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The base pulls `aiohttp` and `commons` (for the retry/backoff engine). Only
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The base pulls `aiohttp` and `commons` (for the retry/backoff engine). Only
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`aiowebhooks[discord]` adds `discord.py` (>=2.3, mainline — not discord.py-self), and
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`aiowebhooks[discord]` adds `discord.py` (>=2.3, mainline, not discord.py-self), and
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only for `DiscordWebhook`.
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only for `DiscordWebhook`.
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Drop the `@v0.1.6` suffix from the line above to install the latest unpinned.
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Drop the `@v1.0.2` suffix from the line above to install the latest unpinned.
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## Core sender
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## Core sender
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@@ -148,6 +148,18 @@ Without the extra installed, importing `aiowebhooks` still works; constructing o
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## Changelog
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## Changelog
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### v0.1.8
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- Compressed 5 residual internal/trivial docstrings (`MAX_RETRY_AFTER`, `_Retryable`,
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`_proxy_string`, `_retry_after`, `_attempt`) to one or two lines; no behavior change.
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### v0.1.7
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- Docstrings/comments compressed (module docstrings and internal-method prose); no
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behavior change. Public method contracts (`Webhook.send`, `WebhookResult` field
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docs) are unchanged.
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- Em-dash characters replaced with hyphens across the source.
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### v0.1.6
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### v0.1.6
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- **429 `retry_after` no longer sleeps on an exhausted final attempt:** the wait is
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- **429 `retry_after` no longer sleeps on an exhausted final attempt:** the wait is
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+2
-2
@@ -4,12 +4,12 @@ build-backend = "hatchling.build"
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[project]
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[project]
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name = "aiowebhooks"
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name = "aiowebhooks"
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version = "0.1.6"
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version = "1.1.0"
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description = "async webhook sender (aiohttp) with round-robin urls, retry, and proxy rotation; optional discord.py embeds"
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description = "async webhook sender (aiohttp) with round-robin urls, retry, and proxy rotation; optional discord.py embeds"
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requires-python = ">=3.10"
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requires-python = ">=3.10"
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dependencies = [
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dependencies = [
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"aiohttp>=3.9",
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"aiohttp>=3.9",
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"commons @ git+ssh://git@git.rethinkstudios.io/rethink-public/commons.git@v0.2.1",
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"commons @ git+https://git.rethinkstudios.io/rethink-public/commons.git@v1.0.0",
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]
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]
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[project.optional-dependencies]
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[project.optional-dependencies]
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+10
-15
@@ -1,24 +1,19 @@
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"""aiowebhooks — async webhook sender (aiohttp), optional discord.py embeds.
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"""aiowebhooks - async webhook sender (aiohttp), optional discord.py embeds.
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post a json payload to a webhook url (or a round-robin pool) with 429/5xx retry and
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post a json payload to a webhook url (or round-robin pool); every send returns a
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optional proxy rotation; every send returns a WebhookResult and never raises on a
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WebhookResult and never raises on a send failure. see README for usage. the
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send failure. the [discord] extra adds DiscordWebhook (username/avatar + Embed
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[discord] extra adds DiscordWebhook (aiowebhooks.discord).
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handling) layered over the same core.
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from aiowebhooks import Webhook
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wh = Webhook("https://example.com/hook")
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result = await wh.send({"content": "hello"})
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if not result.ok:
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...
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DiscordWebhook lives in aiowebhooks.discord and needs the [discord] extra.
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"""
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"""
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from importlib.metadata import PackageNotFoundError, version
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from .errors import NoUrlsError, WebhookError
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from .errors import NoUrlsError, WebhookError
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from .result import WebhookResult
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from .result import WebhookResult
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from .sender import Webhook
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from .sender import Webhook
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__all__ = ["Webhook", "WebhookResult", "WebhookError", "NoUrlsError"]
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__all__ = ["Webhook", "WebhookResult", "WebhookError", "NoUrlsError"]
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__version__ = "0.1.6"
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try:
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__version__ = version("aiowebhooks")
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except PackageNotFoundError:
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__version__ = "0.0.0+unknown"
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@@ -2,9 +2,8 @@
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`DiscordWebhook` wraps a core `Webhook`, adds discord identity (username/avatar,
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`DiscordWebhook` wraps a core `Webhook`, adds discord identity (username/avatar,
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overridable per send) and `Embed` handling, builds the discord webhook json, and
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overridable per send) and `Embed` handling, builds the discord webhook json, and
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delegates the POST to the core — inheriting rotation / proxy / retry / result.
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delegates the POST to the core. importing this module without discord.py installed
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importing this module without discord.py installed is fine; constructing or sending
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is fine; constructing or sending raises a clear RuntimeError naming the extra.
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raises a clear RuntimeError naming the extra.
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"""
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"""
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import logging
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import logging
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@@ -25,7 +24,7 @@ _MISSING = "discord support requires aiowebhooks[discord]"
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class DiscordWebhook:
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class DiscordWebhook:
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"""discord webhook sender — builds payloads, delegates sending to a core Webhook"""
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"""discord webhook sender - builds payloads, delegates sending to a core Webhook"""
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def __init__(
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def __init__(
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self,
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self,
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@@ -1,11 +1,8 @@
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"""exception types for aiowebhooks.
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"""exception types for aiowebhooks.
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these are surfaced for callers that want to branch on a specific failure cause.
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`Webhook.send` never raises on a send failure (returns `WebhookResult(ok=False)`
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note the core `Webhook.send` does NOT raise on a send failure — it returns a
|
instead); these cover bad construction. the missing-`[discord]`-extra path raises a
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`WebhookResult` with `ok=False` and the cause captured in `error`. these types
|
plain `RuntimeError`, not one of these.
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cover bad construction (e.g. `NoUrlsError`) and serve as a base for any future
|
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raising surface; the missing-`[discord]`-extra path raises a plain `RuntimeError`,
|
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not one of these.
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"""
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"""
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@@ -1,9 +1,4 @@
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"""the result object every send returns.
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"""the result object every send returns; `Webhook.send` never raises, callers branch on `ok`."""
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`Webhook.send` never raises on a send failure; it always returns a `WebhookResult`.
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callers branch on `result.ok`. success and every failure mode (4xx/5xx, timeout,
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exhausted proxies) populate the same shape so call sites stay uniform.
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"""
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from dataclasses import dataclass
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from dataclasses import dataclass
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from typing import Dict, Optional, Union
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from typing import Dict, Optional, Union
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+29
-81
@@ -1,15 +1,9 @@
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"""core async webhook sender (aiohttp only, no discord knowledge).
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"""core async webhook sender (aiohttp only, no discord knowledge).
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|
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`Webhook` posts a JSON dict to a url (or round-robins a pool), handling 429/5xx
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`Webhook` posts a JSON dict to a url (or round-robins a pool), handling 429/5xx
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retries, connection/timeout retries, and optional proxy rotation, and always
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retries, connection/timeout retries, and optional proxy rotation; always returns a
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returns a `WebhookResult` — it never raises on a send failure. the discord layer
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`WebhookResult`, never raises on a send failure. the discord layer delegates its
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builds payloads and delegates the actual POST here so it inherits rotation / proxy
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POST here so it inherits rotation/proxy/retry/result.
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/ retry / result.
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|
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a 429's server-controlled `retry_after` wait is bounded: non-finite values
|
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(inf/nan) are rejected and finite values are clamped to `MAX_RETRY_AFTER`, so an
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adversarial or misconfigured server can never stall a send() past a bounded
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ceiling.
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"""
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"""
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import asyncio
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import asyncio
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@@ -27,20 +21,11 @@ from .result import WebhookResult
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log = logging.getLogger(__name__)
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log = logging.getLogger(__name__)
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MAX_RETRY_AFTER = 300.0
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MAX_RETRY_AFTER = 300.0
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"""ceiling (seconds) honored from a server-controlled 429 retry_after/Retry-After
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"""ceiling (seconds) honored from a 429 retry_after/Retry-After; non-finite values (inf/nan) rejected outright"""
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guards against an arbitrarily large or non-finite wait (inf/nan, or a ms-vs-s unit
|
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mismatch) stalling a send() past its ClientTimeout. non-finite values are rejected
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outright; finite values are clamped to this ceiling.
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"""
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class _Retryable(Exception):
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class _Retryable(Exception):
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"""internal signal: a retryable HTTP status (429/5xx); carries the response
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"""internal signal for commons.aretry on a retryable 429/5xx, carrying the real response"""
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raised inside an attempt so commons.aretry drives the backoff + cap; the loop
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catches the final one to return the REAL last response, not a synthetic result.
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"""
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def __init__(self, result: WebhookResult):
|
def __init__(self, result: WebhookResult):
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super().__init__(f"retryable status {result.status}")
|
super().__init__(f"retryable status {result.status}")
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@@ -48,11 +33,7 @@ class _Retryable(Exception):
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|
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def _proxy_string(proxies_dict: Optional[Dict[str, str]]) -> Optional[str]:
|
def _proxy_string(proxies_dict: Optional[Dict[str, str]]) -> Optional[str]:
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"""canonical host:port:user:pass (or host:port) from an aiohttp proxies dict
|
"""canonical host:port:user:pass (or host:port) from an aiohttp proxies dict, or None if unparseable"""
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|
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duck-typed: reads whatever the provider's get() returned without importing it.
|
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returns None if the dict is empty or unparseable.
|
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"""
|
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if not proxies_dict:
|
if not proxies_dict:
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return None
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return None
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url = proxies_dict.get("http") or proxies_dict.get("https")
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url = proxies_dict.get("http") or proxies_dict.get("https")
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@@ -105,11 +86,7 @@ class Webhook:
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|
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@staticmethod
|
@staticmethod
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def _retry_after(status: int, headers, body) -> Optional[float]:
|
def _retry_after(status: int, headers, body) -> Optional[float]:
|
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"""seconds to wait on a 429, from body retry_after then Retry-After header
|
"""seconds to wait on a 429 from body retry_after then Retry-After header, clamped to MAX_RETRY_AFTER"""
|
||||||
|
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||||||
non-finite values (inf/nan) are rejected as unparseable; finite values are
|
|
||||||
clamped to MAX_RETRY_AFTER.
|
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"""
|
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if status != 429:
|
if status != 429:
|
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return None
|
return None
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if isinstance(body, dict) and body.get("retry_after") is not None:
|
if isinstance(body, dict) and body.get("retry_after") is not None:
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@@ -152,15 +129,7 @@ class Webhook:
|
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async def _send_loop(
|
async def _send_loop(
|
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self, session: aiohttp.ClientSession, url: str, payload: Dict
|
self, session: aiohttp.ClientSession, url: str, payload: Dict
|
||||||
) -> WebhookResult:
|
) -> WebhookResult:
|
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"""status-retry (via commons.aretry) wrapping proxy rotation; never raises
|
"""status-retry (commons.aretry, on _Retryable) wrapping proxy rotation; never raises"""
|
||||||
|
|
||||||
commons.aretry owns the 429/5xx/no-provider-connection-error backoff schedule
|
|
||||||
+ retry cap (max_retries), retrying on the internal _Retryable signal; on
|
|
||||||
exhaustion it re-raises the last _Retryable, whose carried result is the real
|
|
||||||
last response (not a synthetic status-0). proxy rotation on connection errors
|
|
||||||
lives inside the attempt, capped separately (max_proxy_retries); once that cap
|
|
||||||
is hit the failure is terminal, not retried again via aretry.
|
|
||||||
"""
|
|
||||||
counter = [0]
|
counter = [0]
|
||||||
pending_wait: List[Optional[float]] = [None]
|
pending_wait: List[Optional[float]] = [None]
|
||||||
try:
|
try:
|
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@@ -172,10 +141,10 @@ class Webhook:
|
|||||||
except _Retryable as exhausted:
|
except _Retryable as exhausted:
|
||||||
return exhausted.result
|
return exhausted.result
|
||||||
except Exception as error:
|
except Exception as error:
|
||||||
# never-raises safety net: anything not aiohttp.ClientError/TimeoutError
|
# never-raises net: anything else (closed session, bad proxy url, ...) -> failed result.
|
||||||
# (closed injected session, malformed proxy url, ...) comes back as a
|
# ERROR: an UNEXPECTED failure is swallowed here into a failed result (op failed, result
|
||||||
# failed result instead of escaping send()
|
# lost, a human may need to act) - the lib is the last code that sees this exception.
|
||||||
log.warning("webhook send failed unexpectedly on %s: %s", url, error, exc_info=True)
|
log.error("webhook send failed unexpectedly on %s: %s", url, error, exc_info=True)
|
||||||
return WebhookResult(
|
return WebhookResult(
|
||||||
ok=False, status=None, url=url, attempts=counter[0] or 1,
|
ok=False, status=None, url=url, attempts=counter[0] or 1,
|
||||||
error=f"{type(error).__name__}: {error}",
|
error=f"{type(error).__name__}: {error}",
|
||||||
@@ -187,22 +156,8 @@ class Webhook:
|
|||||||
) -> WebhookResult:
|
) -> WebhookResult:
|
||||||
"""one logical send: proxy rotation + a single POST; may raise _Retryable
|
"""one logical send: proxy rotation + a single POST; may raise _Retryable
|
||||||
|
|
||||||
raises _Retryable (carrying the real response) on a 429/5xx so the caller's
|
`counter`/`pending_wait` are per-call mutable cells threaded from `_send_loop`, not
|
||||||
aretry applies backoff. an explicit 429 retry_after is carried over and slept
|
instance state - a plain local wouldn't survive aretry calling this fresh each retry.
|
||||||
at the START of the next attempt, never after the one that raises, so an
|
|
||||||
exhausted final attempt never sleeps a wait it won't use. a connection/timeout
|
|
||||||
error also raises _Retryable when no proxy provider is set (retries under
|
|
||||||
aretry like a 5xx); with a provider it instead drives burn+rotate up to
|
|
||||||
max_proxy_retries and only becomes terminal once that cap is hit. always
|
|
||||||
returns a final WebhookResult or raises _Retryable — never lets a provider
|
|
||||||
error escape.
|
|
||||||
|
|
||||||
`counter`/`pending_wait` are per-call mutable cells ([0] / [None]) owned by
|
|
||||||
`_send_loop` and threaded through because aretry calls `_attempt` fresh on
|
|
||||||
every top-level retry, so a plain local wouldn't survive across calls.
|
|
||||||
`counter` tallies attempts; `pending_wait` carries a 429 retry_after to the
|
|
||||||
next attempt's sleep. keeps both local to one `send()`, safe for concurrent
|
|
||||||
sends on the same instance.
|
|
||||||
"""
|
"""
|
||||||
timeout = aiohttp.ClientTimeout(total=self.timeout)
|
timeout = aiohttp.ClientTimeout(total=self.timeout)
|
||||||
last_proxy: Optional[str] = None
|
last_proxy: Optional[str] = None
|
||||||
@@ -212,7 +167,8 @@ class Webhook:
|
|||||||
if pending_wait[0] is not None:
|
if pending_wait[0] is not None:
|
||||||
wait = pending_wait[0]
|
wait = pending_wait[0]
|
||||||
pending_wait[0] = None
|
pending_wait[0] = None
|
||||||
log.warning("webhook 429 on %s; honoring retry_after %.3fs", url, wait)
|
log.warning("webhook 429 on %s; honoring retry_after %.3fs (attempt %d/%d)",
|
||||||
|
url, wait, counter[0] + 1, self.max_retries + 1)
|
||||||
await asyncio.sleep(wait)
|
await asyncio.sleep(wait)
|
||||||
counter[0] += 1
|
counter[0] += 1
|
||||||
attempts = counter[0]
|
attempts = counter[0]
|
||||||
@@ -221,8 +177,10 @@ class Webhook:
|
|||||||
try:
|
try:
|
||||||
proxy_dict = self._proxies.get()
|
proxy_dict = self._proxies.get()
|
||||||
except Exception:
|
except Exception:
|
||||||
# duck-typed provider: any get() error means no proxy available
|
# duck-typed provider: any get() error means no proxy available.
|
||||||
log.warning("webhook: proxy get() failed; no proxy available",
|
# ERROR: swallowed into a failed result (op failed, result lost) - the
|
||||||
|
# provider fault vanishes here unless it is logged loudly.
|
||||||
|
log.error("webhook: proxy get() failed; no proxy available",
|
||||||
exc_info=True)
|
exc_info=True)
|
||||||
return WebhookResult(
|
return WebhookResult(
|
||||||
ok=False, status=None, url=url, attempts=attempts,
|
ok=False, status=None, url=url, attempts=attempts,
|
||||||
@@ -250,18 +208,14 @@ class Webhook:
|
|||||||
)
|
)
|
||||||
|
|
||||||
if status == 429:
|
if status == 429:
|
||||||
# every 429 is retryable; an explicit retry_after is carried
|
# every 429 retries; retry_after (if any) is carried to the NEXT
|
||||||
# to the NEXT attempt's sleep (never slept here), so an
|
# attempt's sleep, additive with aretry's backoff
|
||||||
# exhausted final attempt never sleeps a wait it won't use.
|
|
||||||
# no parseable wait still retries under aretry's backoff+cap;
|
|
||||||
# an honored wait is additive with that backoff (over-waits,
|
|
||||||
# never under-waits). _retry_after rejects non-finite values
|
|
||||||
# and clamps finite ones to MAX_RETRY_AFTER.
|
|
||||||
wait = self._retry_after(status, resp.headers, body)
|
wait = self._retry_after(status, resp.headers, body)
|
||||||
if wait is not None:
|
if wait is not None:
|
||||||
pending_wait[0] = wait
|
pending_wait[0] = wait
|
||||||
else:
|
else:
|
||||||
log.warning("webhook 429 on %s; no retry_after, backing off", url)
|
log.warning("webhook 429 on %s; no retry_after, backing off (attempt %d/%d)",
|
||||||
|
url, attempts, self.max_retries + 1)
|
||||||
raise _Retryable(result)
|
raise _Retryable(result)
|
||||||
if status >= 500:
|
if status >= 500:
|
||||||
raise _Retryable(result)
|
raise _Retryable(result)
|
||||||
@@ -281,27 +235,21 @@ class Webhook:
|
|||||||
ok=False, status=None, url=url, attempts=attempts,
|
ok=False, status=None, url=url, attempts=attempts,
|
||||||
error=f"{type(error).__name__}: {error}", proxy=last_proxy,
|
error=f"{type(error).__name__}: {error}", proxy=last_proxy,
|
||||||
)
|
)
|
||||||
# no proxy provider: retry a connection/timeout error like a 5xx,
|
# no proxy provider: retry like a 5xx, under aretry's backoff + max_retries
|
||||||
# under aretry's backoff + max_retries instead of failing one-shot;
|
|
||||||
# _send_loop's `except _Retryable` returns the carried result once
|
|
||||||
# exhausted, so never-raises still holds.
|
|
||||||
raise _Retryable(WebhookResult(
|
raise _Retryable(WebhookResult(
|
||||||
ok=False, status=None, url=url, attempts=attempts,
|
ok=False, status=None, url=url, attempts=attempts,
|
||||||
error=f"{type(error).__name__}: {error}", proxy=last_proxy,
|
error=f"{type(error).__name__}: {error}", proxy=last_proxy,
|
||||||
))
|
))
|
||||||
|
|
||||||
def _burn(self, proxy: Optional[str]) -> bool:
|
def _burn(self, proxy: Optional[str]) -> bool:
|
||||||
"""burn the current proxy; return False if it can't be rotated
|
"""burn the current proxy; return False (never raise) if it can't be rotated"""
|
||||||
|
|
||||||
the provider is duck-typed and never imported, so any exception from burn
|
|
||||||
(dead pool, unknown proxy, ...) is caught broadly and means "can't rotate" —
|
|
||||||
return False rather than let it escape send().
|
|
||||||
"""
|
|
||||||
try:
|
try:
|
||||||
self._proxies.burn(proxy)
|
self._proxies.burn(proxy)
|
||||||
return True
|
return True
|
||||||
except Exception:
|
except Exception:
|
||||||
log.warning("webhook: proxy burn failed; ending rotation", exc_info=True)
|
# ERROR: an unexpected provider fault (burn() raising) is swallowed here and ends
|
||||||
|
# rotation, failing the send - it must be loud, not a quiet WARNING.
|
||||||
|
log.error("webhook: proxy burn failed; ending rotation", exc_info=True)
|
||||||
return False
|
return False
|
||||||
|
|
||||||
@staticmethod
|
@staticmethod
|
||||||
|
|||||||
Reference in New Issue
Block a user