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#!/usr/bin/env python3
"""
tokopedia-scraper — Selenium edition (secondary engine)
====================================================
The same scrape as playwright_scraper.py, driven through Selenium. It must
agree with its twins on exit codes, run status, and whether a run crashes or
spends money — the decisions that determine all three live in page_flow.py
and output_writer.finish_run(), so this file is browser plumbing and nothing
else.
--mode listing (default) category grids and search results
--mode product one /product/ page, with brand, EAN,
description and the full image list
Two limits of this engine, stated here rather than left to be discovered.
Neither is a bug in this code and neither can be fixed from here:
* **Selenium cannot use an authenticated remote CDP endpoint.** Playwright's
`connect_over_cdp` and pyppeteer's `browserWSEndpoint` take a full
`ws://user:pass@host:port` and authenticate on the WebSocket upgrade.
chromedriver's `debuggerAddress` takes a bare `host:port` and has nowhere
to put a password. So --cdp-endpoint here works only for an endpoint that
needs no credentials; a credentialed one is refused with exit 2 rather
than connected to and silently failing.
* **Selenium cannot authenticate a proxy at all.** `--proxy-server=` accepts
no credentials, and there is no equivalent of pyppeteer's
`page.authenticate`. Credentials are stripped and a warning says so, so
nobody believes a `user:pass` URL is doing something.
There is no --concurrency here either: parallel page fetching lives in the
Playwright engine.
Usage
-----
python selenium_scraper.py \\
--url "https://www.tokopedia.com/p/makanan-minuman/minuman/kopi-bubuk" --pages 3
Requires: pip install -r requirements.txt -r requirements-selenium.txt
Selenium 4 fetches a matching chromedriver itself; a local Chrome
or Chromium must be installed.
"""
import argparse
import logging
import re
import sys
import time
from dataclasses import dataclass, field
from typing import List, Optional
from urllib.parse import urlparse, urlsplit, parse_qsl
from selenium import webdriver
from selenium.common.exceptions import (TimeoutException, WebDriverException,
JavascriptException)
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from captcha_solver import (detect_recaptcha_v3, detect_recaptcha_in_page,
reconcile_detections, solve_recaptcha,
CaptchaUnsolvable, INJECT_TOKEN_JS)
from product_parser import (parse_products, parse_product_page,
shop_metadata, SELECTORS, detect_bot_challenge,
page_url, paginates_by_url, listing_kind,
site_host, is_supported_host, total_results,
search_header, unsupported_reason,
served_by_tokopedia)
from output_writer import dedupe_by_key, finish_run, EXIT_API_ERROR
import page_flow
from page_flow import MIN_CARD_MATCHES
from proxy_pool import (from_args as proxy_pool_from_args, mask, ROTATE_MODES,
ProxyError, split_credentials)
import env_config
logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
logger = logging.getLogger("selenium_scraper")
ITEM_LINK_SELECTOR = page_flow.READY_SELECTOR_LISTING
# The lowest PRICE coverage that is still healthy, per page kind. Not a
# structured-price confirmation share: a Tokopedia listing page carries no
# structured data at all (0 JSON-LD, 0 __NEXT_DATA__, 0 Apollo state on six
# captures), so `price_source` is "dom" on every listing row and there is
# nothing for a confirmation threshold to describe. What IS worth a floor is
# the share of rows that got a price — 95/95 on both search captures and
# 60/60 on both category captures.
PRICE_FLOOR = {"search": 95, "category": 95}
# A page holding less than this share of the fullest page in the same run is
# reported as thin. Tokopedia's page size is steady (60 tiles on both
# category pages captured), but the LAST page of a listing is legitimately
# short, so the bar stays loose.
THIN_PAGE_SHARE = 0.6
PAGE_LOAD_TIMEOUT = 60
SCRIPT_TIMEOUT = 30
# Chromium's own names for "the proxy is the problem, not the site". A dead
# proxy and a slow page want opposite responses — a different exit versus
# another try at the same one — so they are told apart by the error text.
_PROXY_ERROR_MARKERS = (
"ERR_PROXY_CONNECTION_FAILED", "ERR_TUNNEL_CONNECTION_FAILED",
"ERR_PROXY_AUTH_UNSUPPORTED", "ERR_PROXY_AUTH_REQUESTED",
"ERR_UNEXPECTED_PROXY_AUTH", "ERR_PROXY_CERTIFICATE_INVALID",
)
@dataclass
class PageOutcome:
"""What one page produced. Mirrors playwright_scraper.PageOutcome."""
page_num: int
url: str
final_url: Optional[str] = None
products: List = field(default_factory=list)
blocked_by: Optional[str] = None
load_failed: bool = False
# Set when the page was reached but its content was NOT obtained, so a
# zero-row page cannot pass for an empty catalogue:
# page_never_painted Tokopedia served something with no grid, no
# product and no no-results message on it, and
# every retry came back the same
# parser_found_nothing the page held tiles (or a product) and the
# parser returned zero rows from it
not_obtained: Optional[str] = None
state: Optional[str] = None
# Always None on this site: Tokopedia publishes no result total. Kept so
# the sidecar's shape matches the family's.
total_available: Optional[int] = None
# The raw result-count header, verbatim, for the sidecar.
header: Optional[str] = None
# What the lazy-load scroll did, and crucially whether it SETTLED. A page
# whose grid was still growing when the budget ran out is partial.
scroll: Optional[dict] = None
# In --mode product, the seller's own id/name/slug from the page's Apollo
# cache.
shop_facts: Optional[dict] = None
@property
def ok(self) -> bool:
return (not self.load_failed and self.blocked_by is None
and self.not_obtained is None)
@property
def stop_reason(self) -> str:
"""Why the run has to stop at this page; "completed" if it need not."""
if self.load_failed:
return "page_load_timeout"
if self.blocked_by is not None:
return f"blocked_{self.blocked_by}"
return self.not_obtained or "completed"
# WebDriver exposes no HTTP status for a navigation, so this engine judges a
# page by its markup alone. Passed by name at every classify() call so the
# omission is visibly deliberate, and checked as such by the offline suite.
NO_HTTP_STATUS = None
# Every `scheme://user:pass@` in a string, however many times it occurs.
# Matching globally rather than once is the point: a driver's connection
# error can repeat the endpoint several times (the message plus a call log),
# so a masker that handled only the first occurrence would print the password
# the other times and look like it was working.
_CREDENTIALS_IN_URL_RE = re.compile(r"([a-z][a-z0-9+.\-]*://)[^\s/@]+:[^\s/@]+@",
re.IGNORECASE)
def _mask_credentials(text: str) -> str:
"""`text` with any username:password in an embedded URL replaced.
Takes arbitrary text, not just a URL, because the strings that most need
this are exception messages with a URL inside them. The host and port are
KEPT — which endpoint or exit a run used is the useful half of the line
and is not the secret.
"""
return _CREDENTIALS_IN_URL_RE.sub(r"\1***:***@", text or "")
def _chrome_ua(version: str) -> str:
"""A desktop-Chrome UA naming the browser's OWN real version.
`driver.capabilities["browserVersion"]` is the installed Chrome's version,
so the claim matches what the JS engine and the TLS handshake report. A
hardcoded number drifts the moment Chrome updates, and claiming an older
Chrome than everything else reports is itself a signal.
"""
return (f"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
f"(KHTML, like Gecko) Chrome/{version} Safari/537.36")
def _cdp_host_port(endpoint: str) -> str:
"""`host:port` for chromedriver's debuggerAddress, or exit 2 with a reason.
chromedriver takes a bare address here and cannot send credentials, so an
endpoint that carries them cannot work through this engine. Refused up
front: connecting anyway would fail somewhere further in with an error
that names none of this.
"""
parts = urlsplit(endpoint if "//" in endpoint else f"//{endpoint}")
if parts.username or parts.password:
logger.error(
"This --cdp-endpoint carries credentials (%s), and Selenium cannot "
"send them: chromedriver's debuggerAddress is a bare host:port. "
"Use playwright_scraper.py or puppeteer_scraper.py for a "
"credentialed endpoint such as the Scraping Browser API — both "
"authenticate on the WebSocket upgrade.",
_mask_credentials(endpoint))
sys.exit(2)
host = parts.hostname or endpoint
port = f":{parts.port}" if parts.port else ""
return f"{host}{port}"
class _Session:
"""One Chrome driver, relaunchable onto a different exit.
Same contract as the Playwright engine's _BrowserSession, including the
rule that a rotation means a genuinely FRESH browser — and a
fresh browser is also the only thing that re-rolls the served page
fresh cookie jar is what an ordinary user on another network looks like.
"""
def __init__(self, args, pool):
self.args, self.pool = args, pool
self.remote = bool(args.cdp_endpoint)
self.driver = None
def open(self):
options = Options()
if self.remote:
options.debugger_address = _cdp_host_port(self.args.cdp_endpoint)
logger.info("Attaching to an existing browser at %s.",
options.debugger_address)
# No UA, no proxy, no fingerprint on this path: the remote browser
# brings its own, and stacking a second creates a contradiction
# rather than better cover.
self.driver = webdriver.Chrome(options=options)
self._apply_timeouts()
return self
if self.args.headless:
options.add_argument("--headless=new")
options.add_argument("--no-sandbox")
options.add_argument("--disable-dev-shm-usage")
options.add_argument("--window-size=1600,1000")
# Not a fingerprint measure, a correctness one: without it Chrome
# advertises "HeadlessChrome", which is a giveaway on any site with
# a bot manager in front of it.
options.add_argument("--disable-blink-features=AutomationControlled")
if self.pool:
scrubbed, credentials = split_credentials(self.pool.current)
options.add_argument(f"--proxy-server={scrubbed}")
logger.info("Using proxy exit %s", mask(self.pool.current))
if credentials:
logger.warning(
"This proxy has credentials and SELENIUM CANNOT SEND "
"THEM: --proxy-server accepts an address only, and there "
"is no Selenium equivalent of pyppeteer's "
"page.authenticate. They have been stripped, so requests "
"will go out unauthenticated and the exit will most "
"likely refuse them. Use playwright_scraper.py or "
"puppeteer_scraper.py for an authenticated proxy.")
self.driver = webdriver.Chrome(options=options)
self._apply_timeouts()
version = self.driver.capabilities.get("browserVersion", "")
if version:
# Set over CDP rather than as a launch switch, so it can use the
# version the driver actually reports.
try:
self.driver.execute_cdp_cmd(
"Network.setUserAgentOverride",
{"userAgent": _chrome_ua(version)})
except WebDriverException as e:
logger.debug("Could not override the user agent: %s", e)
if self.args.fingerprint:
self._apply_fingerprint()
return self
def _apply_timeouts(self):
# Explicit, because a driver that stops answering otherwise hangs the
# run: "every remote call is bounded" applies to this engine too.
self.driver.set_page_load_timeout(PAGE_LOAD_TIMEOUT)
self.driver.set_script_timeout(SCRIPT_TIMEOUT)
def _apply_fingerprint(self):
from fingerprint_client import get_fingerprint, playwright_init_script
fp = get_fingerprint(self.args.twocaptcha_key, tags=self.args.fp_tags,
country=self.args.fp_country)
ua = (fp.get("userAgent") or {}).get("value")
script = playwright_init_script(fp)
try:
if ua:
self.driver.execute_cdp_cmd("Network.setUserAgentOverride",
{"userAgent": ua})
# The same patch script the Playwright engine installs on its
# context. Shared deliberately: two engines applying different
# halves of one fingerprint would be a contradiction of exactly
# the kind a fingerprint is meant to avoid.
self.driver.execute_cdp_cmd(
"Page.addScriptToEvaluateOnNewDocument", {"source": script})
logger.info("Using 2captcha fingerprint %s (%s)", fp.get("id"),
fp.get("country"))
except WebDriverException as e:
logger.warning("Could not apply the fingerprint over CDP (%s) — "
"continuing without it.", e)
def relaunch(self):
if self.remote:
return
self.close()
self.open()
def close(self):
try:
if self.driver is not None:
# quit(), not close(): close() ends one window and leaves the
# driver process running, which on a per-page rotation would
# leak a chromedriver per page.
self.driver.quit()
except Exception as e: # noqa: BLE001 — teardown must not mask the reason we're here
logger.debug("Ignoring error during driver teardown: %s", e)
# ---------------------------------------------------------------------------
# page_flow, bound to Selenium
# ---------------------------------------------------------------------------
# Only "how to ask this driver" lives here. Note the JS dialect: Selenium's
# execute_script runs a function BODY and needs an explicit `return`, unlike
# the `() => expr` both other engines take — which is why page_flow names
# operations instead of passing JavaScript.
def _driver(session):
driver = session.driver
def count(selector):
try:
return len(driver.find_elements(By.CSS_SELECTOR, selector))
except WebDriverException as e:
logger.debug("count(%s) failed: %s", selector, e)
return 0
def sleep(ms):
time.sleep(ms / 1000.0)
def content():
try:
return driver.page_source
except WebDriverException as e:
# A geo-redirect or the consent layer can navigate, so a
# snapshot can land on the document swap. None tells the caller to
# skip a check rather than fail the run.
logger.debug("page_source unavailable (page navigating?): %s", e)
return None
def current_url():
try:
return driver.current_url
except WebDriverException:
return ""
def page_height():
# Selenium's execute_script takes a function BODY with an explicit
# `return` — not `() => expr`, which is what the other two drivers
# take. That disagreement is exactly why page_flow names the
# OPERATION and each engine spells it in its own dialect.
try:
return int(driver.execute_script(
"return document.body.scrollHeight;"))
except (WebDriverException, TypeError, ValueError):
return None
def scroll_to_bottom():
# To the document's own bottom, not a fixed wheel distance: a fixed
# distance falls behind a page that grows as it loads, and
# Tokopedia's grid went 1606 -> 3730 -> 8157px across two rounds.
try:
driver.execute_script(
"window.scrollTo(0, document.body.scrollHeight);")
except WebDriverException:
pass
return {"count": count, "sleep": sleep, "content": content,
"current_url": current_url, "page_height": page_height,
"scroll_to_bottom": scroll_to_bottom}
def _parse_for_mode(html: str, url: str, args, page_num: int = 1) -> List:
# `page_num` is threaded through rather than defaulted: `position`
# restarts at 1 on every page, so without the page number beside it a
# row from page 2 claims the same position as one from page 1. Mirrors
# playwright_scraper._parse_for_mode exactly.
if args.mode == "product":
row = parse_product_page(html, url, category=args.category)
return [row] if row is not None else []
return parse_products(html, url, page=page_num, category=args.category)
def _same_url(a: str, b: str) -> bool:
"""Whether two URLs address the same page.
Delegates to page_flow rather than reimplementing the comparison, so all
three engines cannot drift on it. In particular Tokopedia writes some of its
next-links percent-DECODED (".../kühlen-gefrieren-32.html") while a
pasted URL is encoded (".../k%C3%BChlen-gefrieren-32.html"); an engine
with its own copy of this got that wrong and silently fell back to
sequential fetching on every accented category.
"""
return page_flow.comparable(a) == page_flow.comparable(b)
def _next_page_candidates(session, page_num: int) -> List[str]:
"""The site's own next-page link, resolved by the browser, or None.
Returns EVERY candidate, filtered by page_flow to the ones that really do
paginate this listing: a shop front advertises its REVIEWS pagination
alongside its items, and following that one returns rows from the wrong
listing while reporting success.
Reads the DOM's `.href` property, which is already absolute — the
opposite of Playwright's get_attribute("href"), which returns the raw
attribute. Kept explicit because the engines differ here.
Note the JS is a function BODY with an explicit `return`, not the arrow
expression the other two engines pass. That difference is exactly why no
JavaScript crosses the page_flow boundary.
"""
try:
hrefs = session.driver.execute_script(
"return Array.from(document.querySelectorAll(arguments[0]))"
".map(a => a.href || a.getAttribute('href')).filter(Boolean);",
page_flow.next_page_selector(page_num))
except WebDriverException:
return []
return page_flow.next_page_candidates(session.driver.current_url,
hrefs or [])
def handle_captcha_if_present(session, args, budget) -> bool:
"""Detect and solve a challenge. True if something was solved.
Same detectors, same reconciliation and the same "detected is not
blocking" rule as the Playwright engine — the three must agree about
when a run spends money.
NOTE what this cannot help with: a Tokopedia refusal is not an HTTP
403 carrying its own error page with no challenge on it, so no solve
applies there and none is attempted. See product_parser.detect_page_state.
"""
driver = session.driver
d = _driver(session)
html = d["content"]()
if html is None:
return False
selector = page_flow.ready_selector(args.mode)
already_rendered = d["count"](selector)
when_blocked = getattr(args, "solve_captcha", "when-blocked") == "when-blocked"
html_challenge = detect_recaptcha_v3(html, d["current_url"]())
runtime_challenge = detect_recaptcha_in_page(
lambda js: driver.execute_script(f"return ({js})();"),
page_url=d["current_url"]())
challenge = reconcile_detections(html_challenge, runtime_challenge)
if not challenge:
return False
if when_blocked and already_rendered > MIN_CARD_MATCHES:
logger.info("%s detected via %s, but %d anchors are already on the "
"page — not solving it.", challenge.kind, challenge.source,
already_rendered)
return False
logger.warning("%s detected via %s (sitekey=%s) — attempting to solve.",
challenge.kind, challenge.source, challenge.sitekey)
if not args.twocaptcha_key:
logger.warning("No 2captcha API key, so this challenge cannot be solved.")
return False
try:
# Claimed HERE, immediately before the paid request, and not per
# call: a call that detects nothing or has no key buys nothing.
if not budget.claim():
logger.warning("%s still on the page, but this page's solve "
"allowance (%d) is spent — not buying another.",
challenge.kind, budget.limit)
return False
token = solve_recaptcha(challenge, args.twocaptcha_key,
api_version=args.captcha_api,
min_score=args.min_score)
except Exception as e: # noqa: BLE001
logger.error("Solving the challenge failed (%s).", e)
return False
try:
driver.execute_script(f"return ({INJECT_TOKEN_JS})(arguments[0]);", token)
except WebDriverException as e:
logger.error("Could not inject the token (%s).", e)
return False
logger.info("Token injected. Reloading page to continue.")
time.sleep(1.5)
driver.refresh()
return True
def _fetch_one_page(session, args, pool, page_num: int, url: str) -> PageOutcome:
"""Fetch and parse one page. Mirrors playwright_scraper._fetch_one_page.
Kept structurally parallel to its twins on purpose — "all three engines
agree" is checked by reading them side by side as well as by the smoke
suite.
"""
outcome = PageOutcome(page_num=page_num, url=url)
d = _driver(session)
html, state, load_failed = None, "ok", False
# See the Playwright engine for the measurement: without a pool there is
# no exit to rotate to, but a plain re-fetch is what clears a block on a
# Scraping Browser profile, so the budget is not zero.
has_pool = bool(pool and len(pool) > 1)
# `RETRY_ON_BLOCKED` is CONSULTED, not just documented. It was a
# constant with a paragraph of justification that no engine read — a
# policy statement nothing enforced, which is the same defect as dead
# code that looks load-bearing. Setting it False now really does stop
# the retry loop.
block_retries = 0 if not page_flow.RETRY_ON_BLOCKED else (
args.proxy_block_retries if has_pool
else page_flow.BLOCK_RETRIES_WITHOUT_POOL)
# ONE allowance for the whole block-retry loop and for BOTH solve call
# sites, claimed just before a purchase and never reset by a retry or a
# rotation. See page_flow.SolveBudget.
budget = page_flow.SolveBudget()
for block_attempt in range(block_retries + 1):
logger.info("Fetching page %d/%d: %s", page_num, args.pages, url)
load_failed, exit_failed = False, None
for attempt in range(1, args.retries + 1):
try:
session.driver.get(url)
load_failed = False
break
except (TimeoutException, WebDriverException) as e:
text = str(e)
reason = next((m for m in _PROXY_ERROR_MARKERS if m in text), "")
load_failed = True
if reason:
exit_failed = reason
break # a different exit is the only thing that helps
if attempt < args.retries:
pause = args.retry_delay * (2 ** (attempt - 1))
logger.warning("Failed to load %s (attempt %d/%d: %s) — "
"retrying in %.1fs.", url, attempt,
args.retries, text[:120], pause)
time.sleep(pause)
if exit_failed and has_pool and block_attempt < block_retries:
logger.warning("Exit %s is unusable (%s) — rotating to another "
"one (%d/%d).", mask(pool.current), exit_failed,
block_attempt + 1, block_retries)
pool.advance(f"unusable exit: {exit_failed}")
session.relaunch()
d = _driver(session)
continue
if load_failed:
break
if handle_captcha_if_present(session, args, budget):
time.sleep(1)
html = d["content"]() or ""
state = page_flow.classify(html, status=NO_HTTP_STATUS, url=d["current_url"]())
# "Not painted yet" is not a fault. A SEARCH grid arrives with the
# client-side GraphQL response, so at domcontentloaded the page is a
# shell with no grid in it — classified naively that is "unknown",
# and "unknown" retries. Wait for the anchor and re-classify BEFORE
# the retry decision. Mirrors playwright_scraper exactly; see
# page_flow.is_unpainted.
if page_flow.is_unpainted(state, html):
wait_s = page_flow.content_timeout_ms(args.mode) / 1000.0
sel = page_flow.ready_selector(args.mode)
need = page_flow.min_matches(args.mode)
logger.info("Page %d is a shell Tokopedia served but has not "
"painted (%d bytes, no grid) — waiting up to %.0fs "
"for the grid rather than spending a retry.",
page_num, len(html), wait_s)
found = page_flow.wait_for_count(d["count"], d["sleep"], sel,
need, int(wait_s * 1000))
if found <= need:
logger.info("The grid still had not painted after %.0fs "
"(%d match(es)).", wait_s, found)
html = d["content"]() or html
state = page_flow.classify(html, status=NO_HTTP_STATUS, url=d["current_url"]())
# No interstitial-settling step, and its absence is measured rather
# than an omission: Tokopedia has no interstitial. An address it has
# scored gets the HTTP/2 stream reset with no markup at all, so there
# is nothing to wait out. See page_flow's "There is no block page".
#
# The paid path is reached only for state "challenge", which no
# capture of this site has ever produced. Wired up because a bot
# manager can be switched on between deploys, and bounded by
# SOLVES_PER_PAGE so a speculative path cannot become a bill.
if page_flow.should_solve(state) and not budget.exhausted:
if handle_captcha_if_present(session, args, budget):
time.sleep(1)
html = d["content"]() or html
state = page_flow.classify(html, status=NO_HTTP_STATUS, url=d["current_url"]())
if state == "content":
logger.info("The solve was accepted — page %d is content "
"now.", page_num)
else:
logger.warning("The solve was NOT accepted: page %d is "
"still %s. The purchase is spent.",
page_num, state)
if not page_flow.should_retry(state):
# "content" and "empty" are both final answers. An empty page is
# a CORRECT one — a hub category has no grid — so retrying it
# would re-confirm the same right answer, and rotating the exit
# would blame an address for the URL it was given.
break
# Blocked or challenged. The ADDRESS is what was scored, not the URL,
# so a different exit is the only thing that plausibly changes the
# outcome.
if block_attempt < block_retries:
if has_pool:
logger.warning("Page %d came back as %s from %s — retrying "
"from another exit (%d/%d).", page_num, state,
mask(pool.current), block_attempt + 1,
block_retries)
pool.advance(f"{state} on page {page_num}")
session.relaunch()
d = _driver(session)
else:
# No pool, so nowhere else to go — a plain re-fetch through
# the same access path, without a relaunch. Mirrors
# playwright_scraper; reaching for `pool.current` here was an
# AttributeError on the first block of a run with no --proxy.
pause = args.retry_delay * (block_attempt + 1)
logger.warning("Page %d came back as %s — re-fetching through "
"the same access path in %.1fs (%d/%d).",
page_num, state, pause, block_attempt + 1,
block_retries)
time.sleep(pause)
if load_failed:
logger.error("Gave up loading %s after %d attempt(s).", url, args.retries)
outcome.load_failed = True
return outcome
outcome.state = state
if state == "blocked":
# There is no challenge on this site to solve. Tokopedia sends an
# address it has scored NOTHING — no status code, no interstitial, no
# vendor marker — so a 2Captcha key does not help and a residential
# exit does. The dump is written even when empty: "0 bytes" is itself
# the diagnosis here.
debug_html = f"{args.out}_page{page_num}_debug.html"
with open(debug_html, "w", encoding="utf-8") as f:
f.write(html or "")
logger.error(
"Tokopedia did not serve this request — %d bytes, %s the site's "
"own asset host, saved to %s. There is no challenge to solve. "
"What clears it, measured 2026-09-10: a residential exit, and the "
"country does not matter (an Indonesian and a US residential exit "
"returned identical pages) — a datacentre address gets nothing. "
"Note this engine cannot use an authenticated remote CDP endpoint "
"or an authenticated proxy; see the README's engine limits. This "
"is exit 3, distinct from a genuinely empty result (exit 4).",
len(html or ""),
"which references" if served_by_tokopedia(html or "")
else "with no reference to", debug_html)
outcome.blocked_by = "no-response" if not html else "not-served"
outcome.final_url = d["current_url"]()
return outcome
if state == "content":
# Wait for paint, then SCROLL — and on this site the scroll is not an
# optimisation. Tokopedia paints nothing on the first response
# (links=0 at round 0 on every capture) and hydrates 60 tiles at a
# time from client-side GraphQL: 11 tiles against 95 after one scroll
# on the measured search URL.
selector = page_flow.ready_selector(args.mode)
threshold = page_flow.min_matches(args.mode)
timeout_s = page_flow.content_timeout_ms(args.mode) / 1000.0
# A POLL through the shared helper, so all three engines wait the
# same way. This engine could use WebDriverWait — it never evaluates
# a string — but a shared wait is one fewer thing to drift on, and
# the other two cannot: Tokopedia's CSP has no `unsafe-eval`.
found = page_flow.wait_for_count(d["count"], d["sleep"], selector,
threshold,
int(timeout_s * 1000))
time.sleep(0.5)
if found <= threshold:
# Not an error on its own, and what it MEANS depends on the
# mode — which is why the message does too. A listing page with
# no grid is a correct answer (a taxonomy hub, or one page past
# the end); a detail page whose buy box never painted is a
# different thing entirely, and on this site it is usually just
# slow rather than absent, because the row is parsed out of the
# page's JSON-LD and not out of the buy box.
if args.mode == "product":
logger.info("The product name did not paint within %.0fs. "
"That is not fatal: a detail row is read from the "
"page's own Apollo cache and its price meta, both "
"in the first response, so the parse below "
"decides.", timeout_s)
else:
logger.info("No listing tiles appeared within %.0fs. If this "
"URL is a /p/<slug> discovery hub or one page "
"past the end of a listing, that is the expected "
"answer and the run will report 0 rows (exit 4).",
timeout_s)
if args.mode != "product":
outcome.scroll = page_flow.scroll_until_settled(
count=d["count"], page_height=d["page_height"],
scroll_to_bottom=d["scroll_to_bottom"], sleep=d["sleep"],
selector=selector)
if not outcome.scroll["settled"]:
logger.warning(
"The grid was still growing after %d scroll rounds (%d "
"cards, height %s) — this page is PARTIAL. Its row count "
"is a floor, not the listing.",
outcome.scroll["rounds"], outcome.scroll["cards"],
outcome.scroll["height"])
html = d["content"]() or html
if args.dump_html:
dump_path = (args.dump_html if args.pages == 1
else f"{args.dump_html}.page{page_num}")
with open(dump_path, "w", encoding="utf-8") as f:
f.write(html)
logger.info("Saved the snapshot the parser sees to %s (%d bytes).",
dump_path, len(html))
# Only when the page is NOT already content. A challenge marker on a
# page whose products have rendered guards nothing — and over
# --cdp-endpoint the Scraping Browser's own auto-solve extension injects
# such markers into every page it loads.
# Only for a state page_flow already counts as BLOCKED. An EMPTY page is
# a correct answer, and a live run of a /p/<slug> hub reported exit 3 on
# a page the site had plainly served because the hub's own performance
# script names `akamaihd.net`. Mirrors playwright_scraper exactly.
vendor = (detect_bot_challenge(html, url=d["current_url"]())
if page_flow.counts_as_blocked(state) else None)
if vendor:
debug_html = f"{args.out}_page{page_num}_debug.html"
with open(debug_html, "w", encoding="utf-8") as f:
f.write(html)
try:
session.driver.save_screenshot(f"{args.out}_page{page_num}_debug.png")
except WebDriverException as e:
logger.warning("Could not capture screenshot: %s", e)
logger.error("Blocked by %s before parsing (%d bytes) — saved to %s. "
"This is exit 3, distinct from a genuinely empty result "
"(exit 4).", vendor, len(html), debug_html)
outcome.blocked_by = vendor
return outcome
final_url = d["current_url"]() or url
# Through the POLICY rather than unconditionally. `STATE_POLICY` is the
# one place that says which states are worth reading, and until now
# nothing consulted its `parse` column: the engines parsed whatever
# reached this line, so every state without an earlier `return` was
# read regardless of what the table said.
#
# # Latent here rather than live — measured on this repo's own fixtures on
# 2026-09-23: no shipped fixture of a parse:False state yields a row,
# because the parser is independently defensive. The gate is wired
# anyway, because "the parser happens to return nothing" is not the
# same guarantee as "the policy says do not read this", and two
# siblings had exactly this shape turn into phantom rows.
#
# Measured across the family on 2026-09-23 by counting definitions
# against readers: 7 of 24 repos defined `should_parse` and none of
# them called it.
products = (_parse_for_mode(html, final_url, args, page_num)
if page_flow.should_parse(state) else [])
logger.info("Parsed %d row(s) from page %d.", len(products), page_num)
if args.mode == "product":
outcome.shop_facts = shop_metadata(html, d["current_url"]())
if args.mode == "listing" and page_num == 1:
# Tokopedia publishes NO result total — its search header reads
# "Menampilkan 1 - 60 barang dari total untuk …" with the total
# EMPTY — so there is no arithmetic completeness check here. The
# header is recorded verbatim instead.
outcome.total_available = total_results(html, shown=len(products))
outcome.header = search_header(html)
if outcome.header:
logger.info("The page's own result header says: %s", outcome.header)
if products and args.mode == "listing":
priced = sum(1 for p in products if p.price is not None)
share = 100.0 * priced / len(products)
kind = listing_kind(d["current_url"]())
floor = PRICE_FLOOR.get(kind, 0)
logger.info("Price coverage on page %d (%s page): %d/%d (%.0f%%); the "
"floor for this page kind is %d%%.",
page_num, kind, priced, len(products), share, floor)
if share < floor:
logger.warning(
"Only %.0f%% of page %d carries a price, against a measured "
"floor of %d%% for a %s page. All 310 rows across the four "
"captured listing pages had one, so this is the read breaking "
"rather than the page being unusual.", share, page_num,
floor, kind)
# No structured-price confirmation share, and its absence is measured:
# a Tokopedia listing page has no structured data to confirm against.
with_image = sum(1 for p in products if p.image_url)
logger.info("Loaded product images on page %d: %d/%d (%.0f%%). "
"Tokopedia lazy-loads them; a tile that never scrolled "
"into view carries a placeholder, reported as null.",
page_num, with_image, len(products),
100.0 * with_image / len(products))
# A zero-row page is an empty catalogue ONLY when the site said so.
# A page holding tiles that parsed to nothing, or a page that never
# painted, is content not obtained — see page_flow.not_obtained_reason.
outcome.not_obtained = page_flow.not_obtained_reason(state, products)
if outcome.not_obtained:
logger.error("Page %d yielded no rows and is NOT an empty result "
"(%s, state %s) — the run reports it as a failed page, "
"not as an empty catalogue.", page_num,
outcome.not_obtained, state)
if not products:
debug_html = f"{args.out}_page{page_num}_debug.html"
with open(debug_html, "w", encoding="utf-8") as f:
f.write(html)
try:
session.driver.save_screenshot(f"{args.out}_page{page_num}_debug.png")
except WebDriverException as e:
logger.warning("Could not capture screenshot: %s", e)
logger.warning("0 rows parsed — saved what the browser actually saw to "
"%s.", debug_html)
outcome.products = products
outcome.final_url = final_url
return outcome
def scrape(args) -> int:
outcomes: List[PageOutcome] = []
seen_keys = set()
blocked = False
# Both modes are one row per product, so `sku` is the key for both.
dedupe_key = "sku"
# Only --mode product is single-page; a listing keeps fetching until its
# pages run out, so a short run is never reported "complete" by fiat.
stop_reason = "single_page_mode" if args.mode == "product" else "completed"
pool = proxy_pool_from_args(args)
if pool and args.cdp_endpoint:
logger.warning("Ignoring --proxy/--proxy-file: with --cdp-endpoint the "
"remote browser has its own exit, and layering a second "
"proxy on top would contradict it.")
pool = None
if args.concurrency > 1:
logger.warning("--concurrency is ignored in this engine: parallel page "
"fetching is implemented in playwright_scraper.py, "
"which is the primary engine. Running one page at a "
"time.")
session = None
try:
session = _Session(args, pool).open()
first = _fetch_one_page(session, args, pool, 1, args.url)
outcomes.append(first)
if not first.ok:
stop_reason = first.stop_reason
blocked = first.blocked_by is not None
elif args.mode == "listing":
seen_keys.update(p.sku for p in first.products if p.sku is not None)
planned = None
if args.pages > 1:
page_one = first.final_url or args.url
constructed = page_url(page_one, 2)
candidates = _next_page_candidates(session, 1)
if candidates and not page_flow.pagination_agrees(
page_one, 1, candidates):
logger.info("The site's own next-page link (%s) is not "
"what the page convention would build (%s) — "
"following its links one page at a time.",
candidates[0], constructed)
else:
if not candidates:
logger.info(
"No pagination link for page 2 was found on page "
"1 — using the URL convention. That is EXPECTED "
"on this site: Tokopedia publishes no rel=next "
"anywhere, and ?page=N addresses every page "
"correctly.")
planned = [page_url(page_one, n)
for n in range(2, args.pages + 1)]
first_candidates = _next_page_candidates(session, 1)
url = (planned[0] if planned else
(first_candidates[0] if first_candidates
else page_url(session.driver.current_url, 2)))
for page_num in range(2, args.pages + 1):
if pool and pool.rotates_per_page():
pool.advance(f"per-page rotation, page {page_num}")
session.relaunch()
outcome = _fetch_one_page(session, args, pool, page_num, url)
outcomes.append(outcome)
if not outcome.ok:
stop_reason = outcome.stop_reason
blocked = outcome.blocked_by is not None
break
fresh_count = sum(1 for p in outcome.products
if p.sku is None or p.sku not in seen_keys)
seen_keys.update(p.sku for p in outcome.products
if p.sku is not None)
if not fresh_count:
logger.info("Page %d added no rows not already seen — "
"treating that as the end of the listing.",
page_num)
stop_reason = "no_new_products"
break
if page_num < args.pages:
nxt = _next_page_candidates(session, page_num)
url = (planned[page_num - 1] if planned else
(nxt[0] if nxt else
page_url(session.driver.current_url, page_num + 1)))
time.sleep(args.delay)
finally:
if session is not None:
session.close()
all_rows = []
merged_seen = set()
for oc in sorted(outcomes, key=lambda o: o.page_num):
fresh = dedupe_by_key(oc.products, merged_seen, key=dedupe_key)
if len(fresh) < len(oc.products):
logger.info("Page %d: dropped %d duplicate row(s).",
oc.page_num, len(oc.products) - len(fresh))
all_rows.extend(fresh)
# Completeness, checked over the MERGED result rather than per page — a
# per-page check cannot see a gap BETWEEN two pages, which is exactly
# where a short page hides.
#
# NOT "pages x rows-per-page", which is what the sibling repo does and
# what fires on healthy runs here. Tokopedia's page size VARIES:
# a three-page run returned 62, 60 and 62 rows, and multiplying the
# largest page by the page count then declared the run short by 8. A
# threshold that warns on every healthy run teaches the reader to ignore
# it.
#
# What is worth warning about is a page that came back materially THIN
# against its siblings — that is what a truncated response or a
# half-painted grid looks like. A page holding less than 60% of the
# fullest page is well outside the +-3% spread that the varying page size
# accounts for.
total_available = next((o.total_available for o in outcomes
if o.total_available is not None), None)
if args.mode == "listing" and all_rows:
counts = [(o.page_num, len(o.products)) for o in outcomes if o.ok]
fullest = max((n for _, n in counts), default=0)
thin = [(p, n) for p, n in counts
if fullest and n < THIN_PAGE_SHARE * fullest]
# The LAST page of a listing is legitimately short — the catalogue
# simply ran out — so it is excluded unless there are pages after it.
last_page = max((p for p, _ in counts), default=0)
thin = [(p, n) for p, n in thin if p != last_page]
if thin:
logger.warning(
"Page(s) %s came back much thinner than the fullest page "
"(%d rows): %s. A truncated response or a half-painted grid "
"looks like this — re-run with --dump-html to check the "
"snapshot for those pages.",
", ".join(str(p) for p, _ in thin), fullest,
", ".join("page %d: %d" % (p, n) for p, n in thin))
if total_available:
logger.info("This listing holds %d product(s) in total; this run "
"took %d (%.1f%%).", total_available, len(all_rows),
100.0 * len(all_rows) / total_available)
ok_pages = [o for o in outcomes if o.ok]
failed_pages = [o.page_num for o in outcomes if not o.ok]
final_url = (max(ok_pages, key=lambda o: o.page_num).final_url
if ok_pages else args.url)
# One-per-run context, in the sidecar rather than repeated down a column.