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Detect Cloudflare blocked access

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This commit is contained in:
ngosang 2023-01-08 20:27:58 +01:00
parent 0941861f80
commit e3b4200d94
2 changed files with 21 additions and 6 deletions
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4
CHANGELOG.md
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@ -1,5 +1,9 @@
# Changelog # Changelog
## v3.0.2 (2023/01/08)
* Detect Cloudflare blocked access
## v3.0.1 (2023/01/06) ## v3.0.1 (2023/01/06)
* Kill Chromium processes properly to avoid defunct/zombie processes * Kill Chromium processes properly to avoid defunct/zombie processes

23
src/flaresolverr_service.py
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@ -13,13 +13,19 @@ from dtos import V1RequestBase, V1ResponseBase, ChallengeResolutionT, ChallengeR
HealthResponse, STATUS_OK, STATUS_ERROR HealthResponse, STATUS_OK, STATUS_ERROR
import utils import utils
ACCESS_DENIED_TITLES = [
# Cloudflare
'Access denied',
# Cloudflare http://bitturk.net/ Firefox
'Attention Required! | Cloudflare'
]
ACCESS_DENIED_SELECTORS = [ ACCESS_DENIED_SELECTORS = [
# Cloudflare # Cloudflare
'div.cf-error-title span.cf-code-label span' 'div.cf-error-title span.cf-code-label span',
# Cloudflare http://bitturk.net/ Firefox # Cloudflare http://bitturk.net/ Firefox
'#cf-error-details div.cf-error-overview h1' '#cf-error-details div.cf-error-overview h1'
] ]
CHALLENGE_TITLE = [ CHALLENGE_TITLES = [
# Cloudflare # Cloudflare
'Just a moment...', 'Just a moment...',
# DDoS-GUARD # DDoS-GUARD
@ -174,7 +180,13 @@ def _evil_logic(req: V1RequestBase, driver: WebDriver, method: str) -> Challenge
# wait for the page # wait for the page
html_element = driver.find_element(By.TAG_NAME, "html") html_element = driver.find_element(By.TAG_NAME, "html")
page_title = driver.title
# find access denied titles
for title in ACCESS_DENIED_TITLES:
if title == page_title:
raise Exception('Cloudflare has blocked this request. '
'Probably your IP is banned for this site, check in your web browser.')
# find access denied selectors # find access denied selectors
for selector in ACCESS_DENIED_SELECTORS: for selector in ACCESS_DENIED_SELECTORS:
found_elements = driver.find_elements(By.CSS_SELECTOR, selector) found_elements = driver.find_elements(By.CSS_SELECTOR, selector)
@ -184,8 +196,7 @@ def _evil_logic(req: V1RequestBase, driver: WebDriver, method: str) -> Challenge
# find challenge by title # find challenge by title
challenge_found = False challenge_found = False
page_title = driver.title for title in CHALLENGE_TITLES:
for title in CHALLENGE_TITLE:
if title == page_title: if title == page_title:
challenge_found = True challenge_found = True
logging.info("Challenge detected. Title found: " + title) logging.info("Challenge detected. Title found: " + title)
@ -202,8 +213,8 @@ def _evil_logic(req: V1RequestBase, driver: WebDriver, method: str) -> Challenge
if challenge_found: if challenge_found:
while True: while True:
try: try:
# wait until the title change # wait until the title changes
for title in CHALLENGE_TITLE: for title in CHALLENGE_TITLES:
logging.debug("Waiting for title: " + title) logging.debug("Waiting for title: " + title)
WebDriverWait(driver, SHORT_TIMEOUT).until_not(title_is(title)) WebDriverWait(driver, SHORT_TIMEOUT).until_not(title_is(title))