release: 1.0.0

first stable release. pre-1.0.0 verification complete: all surviving MED regressions and
gaps resolved and independently re-fired, tree audited clean across the suite.

Signed-off-by: disqualifier <dev@disqualifier.me>

.gitignore

@@ -1,5 +1,5 @@
 # claude
-CLAUDE.md
+.claude/
 
 # python
 __pycache__/

README.md

@@ -13,13 +13,16 @@ send to the core — inheriting rotation, proxy, retry, and result for free.
 ## Install
 
 ```
-aiowebhooks @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v0.1.0
+aiowebhooks @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v1.0.0
 # discord embeds / identity helpers need the extra:
-aiowebhooks[discord] @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v0.1.0
+aiowebhooks[discord] @ git+ssh://git@git.rethinkstudios.io/rethink-public/aiowebhooks.git@v1.0.0
 ```
 
-The base pulls `aiohttp`. Only `aiowebhooks[discord]` adds `discord.py` (>=2.3,
-mainline — not discord.py-self), and only for `DiscordWebhook`.
+The base pulls `aiohttp` and `commons` (for the retry/backoff engine). Only
+`aiowebhooks[discord]` adds `discord.py` (>=2.3, mainline, not discord.py-self), and
+only for `DiscordWebhook`.
+
+Drop the `@v1.0.0` suffix from the line above to install the latest unpinned.
 
 ## Core sender
 
@@ -47,7 +50,9 @@ Webhook(
 ```
 
 Inject a shared `session` for throughput (one session per process); without one, each
-send opens and closes its own.
+send opens and closes its own. A single `Webhook` instance is safe to drive from many
+concurrent `send()` calls — each call tracks its own attempt count, so concurrent sends
+don't corrupt each other's `WebhookResult.attempts`.
 
 ## WebhookResult
 
@@ -65,12 +70,23 @@ result.proxy     # canonical proxy string used (host:port:user:pass / host:port)
 
 ## Retry & rate limits
 
-- **429** — waits the `retry_after` from the body first (Discord sends seconds), then
-  the `Retry-After` header, then retries; capped by `max_retries`.
-- **5xx** — retried, capped by `max_retries`.
+Status retries run through `commons.aretry` (exponential backoff + cap):
+
+- **429** — always retried, capped by `max_retries`. When a wait is parseable (body
+  `retry_after` first — Discord sends seconds — then the `Retry-After` header) it sleeps
+  that value before retrying; a 429 with no parseable wait (edge/Cloudflare/generic
+  webhook) still retries under aretry's backoff rather than failing one-shot. A
+  non-finite value (`inf`/`nan`) is rejected outright and a finite value is clamped to
+  `MAX_RETRY_AFTER` (300s) — a server-controlled wait can never stall a `send()` past
+  that ceiling, however large or malformed the value it sends.
+- **5xx** — retried with exponential backoff, capped by `max_retries`.
+- **connection/timeout errors** — retried with exponential backoff, capped by
+  `max_retries`, same as a 5xx (with no proxy provider; see below for the
+  proxy-rotation path).
 - **4xx** (other than 429) — fails immediately (no retry), returned as `ok=False`.
 
-Exceeding a cap returns a failed result rather than looping.
+Exceeding a cap returns a failed result rather than looping — and the result carries the
+**real** last status/body (not a synthetic placeholder).
 
 ## Proxy rotation (optional, duck-typed)
 
@@ -91,9 +107,11 @@ result = await wh.send(payload)   # sends through pm.get(); on a timeout/connect
 ```
 
 On a timeout/connection error the current proxy is burned and the next is tried, up to
-`max_proxy_retries`. A provider `ProxiesExhaustedError` (or hitting the cap) returns a
-failed result — never an infinite loop. With no provider, a timeout just fails after
-normal retry.
+`max_proxy_retries`. Hitting the cap, or **any exception from the provider's
+`get()`/`burn()`** (the provider is duck-typed and never imported, so its exception
+types can't be caught by class), returns a failed result — never an infinite loop, never
+an escape. With no provider, a timeout/connection error is retried directly under
+`max_retries` (the same cap and backoff a 5xx gets) instead of burn+rotate.
 
 ## Discord (`aiowebhooks[discord]`)
 
@@ -124,12 +142,80 @@ Without the extra installed, importing `aiowebhooks` still works; constructing o
 
 - Every send returns a `WebhookResult`; the core never raises on a send failure and
   never prints. Callers check `result.ok`.
-- v0.1.0 is JSON-only: **files/attachments, `tts`, and `allowed_mentions` are out**
-  (deliberate scope cut, addable later). The Discord surface is content + embeds +
-  identity.
-- v0.1.0 rotation is round-robin only; try-next-on-failure across URLs is a later
-  feature.
+- JSON-only: **files/attachments, `tts`, and `allowed_mentions` are out** (deliberate
+  scope cut, addable later). The Discord surface is content + embeds + identity.
+- Rotation is round-robin only; try-next-on-failure across URLs is a later feature.
+
+## Changelog
+
+### v0.1.8
+
+- Compressed 5 residual internal/trivial docstrings (`MAX_RETRY_AFTER`, `_Retryable`,
+  `_proxy_string`, `_retry_after`, `_attempt`) to one or two lines; no behavior change.
+
+### v0.1.7
+
+- Docstrings/comments compressed (module docstrings and internal-method prose); no
+  behavior change. Public method contracts (`Webhook.send`, `WebhookResult` field
+  docs) are unchanged.
+- Em-dash characters replaced with hyphens across the source.
+
+### v0.1.6
+
+- **429 `retry_after` no longer sleeps on an exhausted final attempt:** the wait is
+  now carried to the START of the next attempt instead of slept immediately after
+  seeing the 429. Previously the last (exhausted) attempt slept the full
+  `retry_after` before giving up — a pointless wait since no retry followed. The
+  wait is still honored (additive with aretry's backoff) before every attempt that
+  actually runs.
+- Docs: `errors.py` no longer implies the missing-`[discord]`-extra raise is one of
+  the exported error types — it's a plain `RuntimeError`.
+- Docstrings/comments compressed; no behavior change.
+
+### v0.1.5
+
+- **429 `retry_after` bounded:** a non-finite server-controlled wait (`inf`/`nan`, from
+  the body `retry_after` or the `Retry-After` header) is now rejected outright, and a
+  finite wait is clamped to `MAX_RETRY_AFTER` (300s). Previously a bare `float()` parse
+  slept the value verbatim, unbounded and outside `max_retries` accounting — an
+  adversarial or ms-vs-s-misconfigured server could stall a `send()` for hours.
+- **Connection/timeout errors now retry without a proxy provider:** previously
+  `aiohttp.ClientError`/`asyncio.TimeoutError` with no `proxies=` set failed one-shot,
+  contradicting both the README and the single most retry-worthy failure class. Now it
+  retries under `commons.aretry`'s backoff, capped by `max_retries`, same as a 5xx —
+  and still returns `ok=False` (never raises) once retries are exhausted. Proxy-rotation
+  behavior (burn + rotate, capped by `max_proxy_retries`) is unchanged when a provider
+  is set.
+
+### v0.1.4
+
+- **Never-raises net widened:** an unexpected exception that escapes a send attempt (a
+  closed injected session → `RuntimeError`, a malformed proxy URL → `ValueError`) now
+  converts to a falsy `WebhookResult(ok=False, ...)` instead of propagating out of
+  `send()`, restoring the documented contract for those edge triggers.
+
+### v0.1.3
+
+- **429 always retries:** every `429` is now retryable under aretry's backoff + cap, not
+  only those with a parseable `retry_after`. A 429 with no body `retry_after` and no
+  `Retry-After` header (edge/Cloudflare/generic webhook) previously failed one-shot.
+
+### v0.1.2
+
+- Removed a dead `clock` constructor param (it was stored but never used). Pinned
+  `commons` to v0.2.1.
+
+### v0.1.1
+
+- **Never-raises contract hardened:** an error from a duck-typed proxy provider's
+  `get()`/`burn()` (e.g. `aioproxies.burn()` raising `ValueError` for an unknown proxy)
+  used to escape `send()`. Now any provider exception is caught and converted to a
+  failed result.
+- **Retry via `commons.aretry`:** 429/5xx retry moved onto the shared backoff engine —
+  5xx now backs off (was a tight no-backoff loop), and exhausted retries return the
+  **real** last status/body instead of a synthetic placeholder. Adds a `commons`
+  dependency.
 
 ## Versioning
 
-Tagged `vX.Y.Z`. Pin the tag.
+Releases are tagged `vX.Y.Z`. The install line above pins a release; drop the `@vX.Y.Z` suffix to install the latest unpinned. Pin deliberately for reproducible installs.

pyproject.toml

@@ -4,11 +4,12 @@ build-backend = "hatchling.build"
 
 [project]
 name = "aiowebhooks"
-version = "0.1.0"
+version = "1.0.0"
 description = "async webhook sender (aiohttp) with round-robin urls, retry, and proxy rotation; optional discord.py embeds"
 requires-python = ">=3.10"
 dependencies = [
     "aiohttp>=3.9",
+    "commons @ git+ssh://git@git.rethinkstudios.io/rethink-public/commons.git@v0.2.1",
 ]
 
 [project.optional-dependencies]
@@ -16,5 +17,8 @@ discord = [
     "discord.py>=2.3",
 ]
 
+[tool.hatch.metadata]
+allow-direct-references = true
+
 [tool.hatch.build.targets.wheel]
 packages = ["src/aiowebhooks"]

src/aiowebhooks/__init__.py

@@ -1,24 +1,19 @@
-"""aiowebhooks — async webhook sender (aiohttp), optional discord.py embeds.
+"""aiowebhooks - async webhook sender (aiohttp), optional discord.py embeds.
 
-post a json payload to a webhook url (or a round-robin pool) with 429/5xx retry and
-optional proxy rotation; every send returns a WebhookResult and never raises on a
-send failure. the [discord] extra adds DiscordWebhook (username/avatar + Embed
-handling) layered over the same core.
-
-    from aiowebhooks import Webhook
-
-    wh = Webhook("https://example.com/hook")
-    result = await wh.send({"content": "hello"})
-    if not result.ok:
-        ...
-
-DiscordWebhook lives in aiowebhooks.discord and needs the [discord] extra.
+post a json payload to a webhook url (or round-robin pool); every send returns a
+WebhookResult and never raises on a send failure. see README for usage. the
+[discord] extra adds DiscordWebhook (aiowebhooks.discord).
 """
 
+from importlib.metadata import PackageNotFoundError, version
+
 from .errors import NoUrlsError, WebhookError
 from .result import WebhookResult
 from .sender import Webhook
 
 __all__ = ["Webhook", "WebhookResult", "WebhookError", "NoUrlsError"]
 
-__version__ = "0.1.0"
+try:
+    __version__ = version("aiowebhooks")
+except PackageNotFoundError:
+    __version__ = "0.0.0+unknown"

src/aiowebhooks/discord.py

@@ -2,9 +2,8 @@
 
 `DiscordWebhook` wraps a core `Webhook`, adds discord identity (username/avatar,
 overridable per send) and `Embed` handling, builds the discord webhook json, and
-delegates the POST to the core — inheriting rotation / proxy / retry / result.
-importing this module without discord.py installed is fine; constructing or sending
-raises a clear RuntimeError naming the extra.
+delegates the POST to the core. importing this module without discord.py installed
+is fine; constructing or sending raises a clear RuntimeError naming the extra.
 """
 
 import logging
@@ -25,7 +24,7 @@ _MISSING = "discord support requires aiowebhooks[discord]"
 
 
 class DiscordWebhook:
-    """discord webhook sender — builds payloads, delegates sending to a core Webhook"""
+    """discord webhook sender - builds payloads, delegates sending to a core Webhook"""
 
     def __init__(
         self,

src/aiowebhooks/errors.py

@@ -1,10 +1,8 @@
 """exception types for aiowebhooks.
 
-these are surfaced for callers that want to branch on a specific failure cause.
-note the core `Webhook.send` does NOT raise on a send failure — it returns a
-`WebhookResult` with `ok=False` and the cause captured in `error`. these types
-exist for the few raise paths (bad construction, missing extra) and as a base for
-any future raising surface.
+`Webhook.send` never raises on a send failure (returns `WebhookResult(ok=False)`
+instead); these cover bad construction. the missing-`[discord]`-extra path raises a
+plain `RuntimeError`, not one of these.
 """
 
 

src/aiowebhooks/result.py

@@ -1,9 +1,4 @@
-"""the result object every send returns.
-
-`Webhook.send` never raises on a send failure; it always returns a `WebhookResult`.
-callers branch on `result.ok`. success and every failure mode (4xx/5xx, timeout,
-exhausted proxies) populate the same shape so call sites stay uniform.
-"""
+"""the result object every send returns; `Webhook.send` never raises, callers branch on `ok`."""
 
 from dataclasses import dataclass
 from typing import Dict, Optional, Union

src/aiowebhooks/sender.py

@@ -1,31 +1,39 @@
 """core async webhook sender (aiohttp only, no discord knowledge).
 
 `Webhook` posts a JSON dict to a url (or round-robins a pool), handling 429/5xx
-retries and optional proxy rotation, and always returns a `WebhookResult` — it
-never raises on a send failure. the discord layer builds payloads and delegates
-the actual POST here so it inherits rotation / proxy / retry / result.
+retries, connection/timeout retries, and optional proxy rotation; always returns a
+`WebhookResult`, never raises on a send failure. the discord layer delegates its
+POST here so it inherits rotation/proxy/retry/result.
 """
 
 import asyncio
 import logging
-import time
+import math
 from typing import Dict, List, Optional, Union
 from urllib.parse import unquote, urlsplit
 
 import aiohttp
+from commons import aretry
 
 from .errors import NoUrlsError
 from .result import WebhookResult
 
 log = logging.getLogger(__name__)
 
+MAX_RETRY_AFTER = 300.0
+"""ceiling (seconds) honored from a 429 retry_after/Retry-After; non-finite values (inf/nan) rejected outright"""
+
+
+class _Retryable(Exception):
+    """internal signal for commons.aretry on a retryable 429/5xx, carrying the real response"""
+
+    def __init__(self, result: WebhookResult):
+        super().__init__(f"retryable status {result.status}")
+        self.result = result
+
 
 def _proxy_string(proxies_dict: Optional[Dict[str, str]]) -> Optional[str]:
-    """canonical host:port:user:pass (or host:port) from an aiohttp proxies dict
-
-    duck-typed: reads whatever the provider's get() returned without importing it.
-    returns None if the dict is empty or unparseable.
-    """
+    """canonical host:port:user:pass (or host:port) from an aiohttp proxies dict, or None if unparseable"""
     if not proxies_dict:
         return None
     url = proxies_dict.get("http") or proxies_dict.get("https")
@@ -37,12 +45,12 @@ def _proxy_string(proxies_dict: Optional[Dict[str, str]]) -> Optional[str]:
         if host is None:
             return None
         host = host.lower()
-        port = str(parts.port) if parts.port is not None else ""
+        hostport = f"{host}:{parts.port}" if parts.port is not None else host
         if parts.username:
             user = unquote(parts.username)
             password = unquote(parts.password) if parts.password is not None else ""
-            return f"{host}:{port}:{user}:{password}"
-        return f"{host}:{port}"
+            return f"{hostport}:{user}:{password}"
+        return hostport
     except ValueError:
         return None
 
@@ -59,7 +67,6 @@ class Webhook:
         timeout: float = 15,
         max_retries: int = 3,
         max_proxy_retries: int = 3,
-        clock=time.monotonic,
     ):
         self._urls = [urls] if isinstance(urls, str) else list(urls)
         if not self._urls:
@@ -69,7 +76,6 @@ class Webhook:
         self.timeout = timeout
         self.max_retries = max_retries
         self.max_proxy_retries = max_proxy_retries
-        self._clock = clock
         self._index = 0
 
     def _next_url(self) -> str:
@@ -80,18 +86,22 @@ class Webhook:
 
     @staticmethod
     def _retry_after(status: int, headers, body) -> Optional[float]:
-        """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"""
         if status != 429:
             return None
         if isinstance(body, dict) and body.get("retry_after") is not None:
             try:
-                return float(body["retry_after"])
+                value = float(body["retry_after"])
+                if math.isfinite(value):
+                    return max(0.0, min(value, MAX_RETRY_AFTER))
             except (TypeError, ValueError):
                 pass
         header = headers.get("Retry-After") if headers else None
         if header is not None:
             try:
-                return float(header)
+                value = float(header)
+                if math.isfinite(value):
+                    return max(0.0, min(value, MAX_RETRY_AFTER))
             except (TypeError, ValueError):
                 pass
         return None
@@ -100,9 +110,10 @@ class Webhook:
         """post a json payload to the next pool url; always returns a result
 
         handles 429 (wait + retry, capped by max_retries), 5xx (retry, capped), and
-        timeout/connection errors with optional proxy rotation (burn + next, capped
-        by max_proxy_retries). 4xx other than 429 fail immediately. never raises on a
-        send failure.
+        timeout/connection errors: with a proxy provider, burn + rotate to the next
+        proxy (capped by max_proxy_retries) before failing; without one, retried
+        directly under max_retries like a 5xx. 4xx other than 429 fail immediately.
+        never raises on a send failure.
         """
         url = self._next_url()
         session = self._session
@@ -118,29 +129,61 @@ class Webhook:
     async def _send_loop(
         self, session: aiohttp.ClientSession, url: str, payload: Dict
     ) -> WebhookResult:
-        """retry/rotation loop for a single send"""
-        attempts = 0
-        retries = 0
-        proxy_tries = 0
-        last_proxy: Optional[str] = None
+        """status-retry (commons.aretry, on _Retryable) wrapping proxy rotation; never raises"""
+        counter = [0]
+        pending_wait: List[Optional[float]] = [None]
+        try:
+            return await aretry(
+                lambda: self._attempt(session, url, payload, counter, pending_wait),
+                attempts=self.max_retries + 1,
+                on=(_Retryable,),
+            )
+        except _Retryable as exhausted:
+            return exhausted.result
+        except Exception as error:
+            # never-raises net: anything else (closed session, bad proxy url, ...) -> failed result
+            log.warning("webhook send failed unexpectedly on %s: %s", url, error, exc_info=True)
+            return WebhookResult(
+                ok=False, status=None, url=url, attempts=counter[0] or 1,
+                error=f"{type(error).__name__}: {error}",
+            )
+
+    async def _attempt(
+        self, session: aiohttp.ClientSession, url: str, payload: Dict, counter: List[int],
+        pending_wait: List[Optional[float]],
+    ) -> WebhookResult:
+        """one logical send: proxy rotation + a single POST; may raise _Retryable
+
+        `counter`/`pending_wait` are per-call mutable cells threaded from `_send_loop`, not
+        instance state - a plain local wouldn't survive aretry calling this fresh each retry.
+        """
         timeout = aiohttp.ClientTimeout(total=self.timeout)
+        last_proxy: Optional[str] = None
+        proxy_tries = 0
 
         while True:
+            if pending_wait[0] is not None:
+                wait = pending_wait[0]
+                pending_wait[0] = None
+                log.warning("webhook 429 on %s; honoring retry_after %.3fs", url, wait)
+                await asyncio.sleep(wait)
+            counter[0] += 1
+            attempts = counter[0]
             proxy_url = None
             if self._proxies is not None:
                 try:
                     proxy_dict = self._proxies.get()
-                except Exception as error:
-                    if type(error).__name__ == "ProxiesExhaustedError":
+                except Exception:
+                    # duck-typed provider: any get() error means no proxy available
+                    log.warning("webhook: proxy get() failed; no proxy available",
+                                exc_info=True)
                     return WebhookResult(
                         ok=False, status=None, url=url, attempts=attempts,
-                            error="proxies exhausted", proxy=last_proxy,
+                        error="proxies unavailable", proxy=last_proxy,
                     )
-                    raise
                 last_proxy = _proxy_string(proxy_dict)
                 proxy_url = (proxy_dict or {}).get("http") or (proxy_dict or {}).get("https")
 
-            attempts += 1
             try:
                 async with session.post(
                     url, json=payload, proxy=proxy_url, timeout=timeout
@@ -154,27 +197,27 @@ class Webhook:
                             response=body, proxy=last_proxy,
                         )
 
-                    wait = self._retry_after(status, resp.headers, body)
-                    if wait is not None and retries < self.max_retries:
-                        retries += 1
-                        log.warning("webhook 429 on %s; waiting %.3fs (retry %d/%d)",
-                                    url, wait, retries, self.max_retries)
-                        await asyncio.sleep(wait)
-                        continue
-
-                    if status >= 500 and retries < self.max_retries:
-                        retries += 1
-                        log.warning("webhook %d on %s; retry %d/%d",
-                                    status, url, retries, self.max_retries)
-                        continue
-
-                    return WebhookResult(
+                    result = WebhookResult(
                         ok=False, status=status, url=url, attempts=attempts,
                         error=f"http {status}", response=body, proxy=last_proxy,
                     )
 
+                    if status == 429:
+                        # every 429 retries; retry_after (if any) is carried to the NEXT
+                        # attempt's sleep, additive with aretry's backoff
+                        wait = self._retry_after(status, resp.headers, body)
+                        if wait is not None:
+                            pending_wait[0] = wait
+                        else:
+                            log.warning("webhook 429 on %s; no retry_after, backing off", url)
+                        raise _Retryable(result)
+                    if status >= 500:
+                        raise _Retryable(result)
+                    return result
+
             except (aiohttp.ClientError, asyncio.TimeoutError) as error:
-                if self._proxies is not None and proxy_tries < self.max_proxy_retries:
+                if self._proxies is not None:
+                    if proxy_tries < self.max_proxy_retries:
                         if self._burn(last_proxy):
                             proxy_tries += 1
                             continue
@@ -186,20 +229,20 @@ class Webhook:
                         ok=False, status=None, url=url, attempts=attempts,
                         error=f"{type(error).__name__}: {error}", proxy=last_proxy,
                     )
+                # no proxy provider: retry like a 5xx, under aretry's backoff + max_retries
+                raise _Retryable(WebhookResult(
+                    ok=False, status=None, url=url, attempts=attempts,
+                    error=f"{type(error).__name__}: {error}", proxy=last_proxy,
+                ))
 
     def _burn(self, proxy: Optional[str]) -> bool:
-        """burn the current proxy; return False if the provider is exhausted
-
-        catches a provider ProxiesExhaustedError duck-typed by class name (the
-        provider is never imported), so a dying pool ends the loop cleanly.
-        """
+        """burn the current proxy; return False (never raise) if it can't be rotated"""
         try:
             self._proxies.burn(proxy)
             return True
-        except Exception as error:
-            if type(error).__name__ == "ProxiesExhaustedError":
+        except Exception:
+            log.warning("webhook: proxy burn failed; ending rotation", exc_info=True)
             return False
-            raise
 
     @staticmethod
     async def _read_body(resp) -> Optional[Union[str, Dict]]: