kopia lustrzana https://github.com/dgtlmoon/changedetection.io
Code refactor for fetchers (#1941)
rodzic
7c97a5a403
commit
c8dcc072c8
|
@ -40,8 +40,8 @@ def construct_blueprint(datastore: ChangeDetectionStore):
|
|||
contents = ''
|
||||
now = time.time()
|
||||
try:
|
||||
update_handler = text_json_diff.perform_site_check(datastore=datastore)
|
||||
changed_detected, update_obj, contents = update_handler.run(uuid, preferred_proxy=preferred_proxy, skip_when_checksum_same=False)
|
||||
update_handler = text_json_diff.perform_site_check(datastore=datastore, watch_uuid=uuid)
|
||||
update_handler.call_browser()
|
||||
# title, size is len contents not len xfer
|
||||
except content_fetcher.Non200ErrorCodeReceived as e:
|
||||
if e.status_code == 404:
|
||||
|
|
|
@ -419,11 +419,7 @@ class base_html_playwright(Fetcher):
|
|||
is_binary=False):
|
||||
|
||||
# For now, USE_EXPERIMENTAL_PUPPETEER_FETCH is not supported by watches with BrowserSteps (for now!)
|
||||
has_browser_steps = self.browser_steps and list(filter(
|
||||
lambda s: (s['operation'] and len(s['operation']) and s['operation'] != 'Choose one' and s['operation'] != 'Goto site'),
|
||||
self.browser_steps))
|
||||
|
||||
if not has_browser_steps and os.getenv('USE_EXPERIMENTAL_PUPPETEER_FETCH'):
|
||||
if not self.browser_steps and os.getenv('USE_EXPERIMENTAL_PUPPETEER_FETCH'):
|
||||
if strtobool(os.getenv('USE_EXPERIMENTAL_PUPPETEER_FETCH')):
|
||||
# Temporary backup solution until we rewrite the playwright code
|
||||
return self.run_fetch_browserless_puppeteer(
|
||||
|
@ -671,6 +667,7 @@ class html_requests(Fetcher):
|
|||
fetcher_description = "Basic fast Plaintext/HTTP Client"
|
||||
|
||||
def __init__(self, proxy_override=None):
|
||||
super().__init__()
|
||||
self.proxy_override = proxy_override
|
||||
|
||||
def run(self,
|
||||
|
|
|
@ -19,6 +19,7 @@ from changedetectionio.notification import (
|
|||
|
||||
base_config = {
|
||||
'body': None,
|
||||
'browser_steps': [],
|
||||
'browser_steps_last_error_step': None,
|
||||
'check_unique_lines': False, # On change-detected, compare against all history if its something new
|
||||
'check_count': 0,
|
||||
|
@ -145,8 +146,14 @@ class model(dict):
|
|||
flash(message, 'error')
|
||||
return ''
|
||||
|
||||
if ready_url.startswith('source:'):
|
||||
ready_url=ready_url.replace('source:', '')
|
||||
return ready_url
|
||||
|
||||
@property
|
||||
def is_source_type_url(self):
|
||||
return self.get('url', '').startswith('source:')
|
||||
|
||||
@property
|
||||
def get_fetch_backend(self):
|
||||
"""
|
||||
|
@ -234,6 +241,14 @@ class model(dict):
|
|||
fname = os.path.join(self.watch_data_dir, "history.txt")
|
||||
return os.path.isfile(fname)
|
||||
|
||||
@property
|
||||
def has_browser_steps(self):
|
||||
has_browser_steps = self.get('browser_steps') and list(filter(
|
||||
lambda s: (s['operation'] and len(s['operation']) and s['operation'] != 'Choose one' and s['operation'] != 'Goto site'),
|
||||
self.get('browser_steps')))
|
||||
|
||||
return has_browser_steps
|
||||
|
||||
# Returns the newest key, but if theres only 1 record, then it's counted as not being new, so return 0.
|
||||
@property
|
||||
def newest_history_key(self):
|
||||
|
|
|
@ -1,15 +1,108 @@
|
|||
from abc import abstractmethod
|
||||
import os
|
||||
import hashlib
|
||||
|
||||
import re
|
||||
from changedetectionio import content_fetcher
|
||||
from copy import deepcopy
|
||||
from distutils.util import strtobool
|
||||
|
||||
class difference_detection_processor():
|
||||
|
||||
datastore = None
|
||||
fetcher = None
|
||||
screenshot = None
|
||||
xpath_data = None
|
||||
browser_steps = None
|
||||
|
||||
def __init__(self, *args, **kwargs):
|
||||
def __init__(self, *args, datastore, watch_uuid, **kwargs):
|
||||
super().__init__(*args, **kwargs)
|
||||
self.datastore = datastore
|
||||
self.watch = deepcopy(self.datastore.data['watching'].get(watch_uuid))
|
||||
|
||||
def call_browser(self):
|
||||
|
||||
# Protect against file:// access
|
||||
if re.search(r'^file://', self.watch.get('url', '').strip(), re.IGNORECASE):
|
||||
if not strtobool(os.getenv('ALLOW_FILE_URI', 'false')):
|
||||
raise Exception(
|
||||
"file:// type access is denied for security reasons."
|
||||
)
|
||||
|
||||
url = self.watch.link
|
||||
|
||||
# Requests, playwright, other browser via wss:// etc, fetch_extra_something
|
||||
prefer_fetch_backend = self.watch.get('fetch_backend', 'system')
|
||||
|
||||
# Proxy ID "key"
|
||||
preferred_proxy_id = self.datastore.get_preferred_proxy_for_watch(uuid=self.watch.get('uuid'))
|
||||
|
||||
# Pluggable content self.fetcher
|
||||
if not prefer_fetch_backend or prefer_fetch_backend == 'system':
|
||||
prefer_fetch_backend = self.datastore.data['settings']['application'].get('fetch_backend')
|
||||
|
||||
# Grab the right kind of 'fetcher', (playwright, requests, etc)
|
||||
if hasattr(content_fetcher, prefer_fetch_backend):
|
||||
fetcher_obj = getattr(content_fetcher, prefer_fetch_backend)
|
||||
else:
|
||||
# If the klass doesnt exist, just use a default
|
||||
fetcher_obj = getattr(content_fetcher, "html_requests")
|
||||
|
||||
|
||||
proxy_url = None
|
||||
if preferred_proxy_id:
|
||||
proxy_url = self.datastore.proxy_list.get(preferred_proxy_id).get('url')
|
||||
print(f"Using proxy Key: {preferred_proxy_id} as Proxy URL {proxy_url}")
|
||||
|
||||
# Now call the fetcher (playwright/requests/etc) with arguments that only a fetcher would need.
|
||||
self.fetcher = fetcher_obj(proxy_override=proxy_url,
|
||||
#browser_url_extra/configurable browser url=...
|
||||
)
|
||||
|
||||
if self.watch.has_browser_steps:
|
||||
self.fetcher.browser_steps = self.watch.get('browser_steps', [])
|
||||
self.fetcher.browser_steps_screenshot_path = os.path.join(self.datastore.datastore_path, self.watch.get('uuid'))
|
||||
|
||||
# Tweak the base config with the per-watch ones
|
||||
request_headers = self.watch.get('headers', [])
|
||||
request_headers.update(self.datastore.get_all_base_headers())
|
||||
request_headers.update(self.datastore.get_all_headers_in_textfile_for_watch(uuid=self.watch.get('uuid')))
|
||||
|
||||
# https://github.com/psf/requests/issues/4525
|
||||
# Requests doesnt yet support brotli encoding, so don't put 'br' here, be totally sure that the user cannot
|
||||
# do this by accident.
|
||||
if 'Accept-Encoding' in request_headers and "br" in request_headers['Accept-Encoding']:
|
||||
request_headers['Accept-Encoding'] = request_headers['Accept-Encoding'].replace(', br', '')
|
||||
|
||||
timeout = self.datastore.data['settings']['requests'].get('timeout')
|
||||
|
||||
request_body = self.watch.get('body')
|
||||
request_method = self.watch.get('method')
|
||||
ignore_status_codes = self.watch.get('ignore_status_codes', False)
|
||||
|
||||
# Configurable per-watch or global extra delay before extracting text (for webDriver types)
|
||||
system_webdriver_delay = self.datastore.data['settings']['application'].get('webdriver_delay', None)
|
||||
if self.watch.get('webdriver_delay'):
|
||||
self.fetcher.render_extract_delay = self.watch.get('webdriver_delay')
|
||||
elif system_webdriver_delay is not None:
|
||||
self.fetcher.render_extract_delay = system_webdriver_delay
|
||||
|
||||
if self.watch.get('webdriver_js_execute_code') is not None and self.watch.get('webdriver_js_execute_code').strip():
|
||||
self.fetcher.webdriver_js_execute_code = self.watch.get('webdriver_js_execute_code')
|
||||
|
||||
# Requests for PDF's, images etc should be passwd the is_binary flag
|
||||
is_binary = self.watch.is_pdf
|
||||
|
||||
# And here we go! call the right browser with browser-specific settings
|
||||
self.fetcher.run(url, timeout, request_headers, request_body, request_method, ignore_status_codes, self.watch.get('include_filters'),
|
||||
is_binary=is_binary)
|
||||
|
||||
#@todo .quit here could go on close object, so we can run JS if change-detected
|
||||
self.fetcher.quit()
|
||||
|
||||
# After init, call run_changedetection() which will do the actual change-detection
|
||||
|
||||
@abstractmethod
|
||||
def run(self, uuid, skip_when_checksum_same=True, preferred_proxy=None):
|
||||
def run_changedetection(self, uuid, skip_when_checksum_same=True):
|
||||
update_obj = {'last_notification_error': False, 'last_error': False}
|
||||
some_data = 'xxxxx'
|
||||
update_obj["previous_md5"] = hashlib.md5(some_data.encode('utf-8')).hexdigest()
|
||||
|
|
|
@ -1,10 +1,7 @@
|
|||
|
||||
import hashlib
|
||||
import os
|
||||
import re
|
||||
import urllib3
|
||||
from . import difference_detection_processor
|
||||
from changedetectionio import content_fetcher
|
||||
from copy import deepcopy
|
||||
|
||||
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
|
||||
|
@ -22,11 +19,7 @@ class perform_site_check(difference_detection_processor):
|
|||
screenshot = None
|
||||
xpath_data = None
|
||||
|
||||
def __init__(self, *args, datastore, **kwargs):
|
||||
super().__init__(*args, **kwargs)
|
||||
self.datastore = datastore
|
||||
|
||||
def run(self, uuid, skip_when_checksum_same=True):
|
||||
def run_changedetection(self, uuid, skip_when_checksum_same=True):
|
||||
|
||||
# DeepCopy so we can be sure we don't accidently change anything by reference
|
||||
watch = deepcopy(self.datastore.data['watching'].get(uuid))
|
||||
|
@ -34,84 +27,24 @@ class perform_site_check(difference_detection_processor):
|
|||
if not watch:
|
||||
raise Exception("Watch no longer exists.")
|
||||
|
||||
# Protect against file:// access
|
||||
if re.search(r'^file', watch.get('url', ''), re.IGNORECASE) and not os.getenv('ALLOW_FILE_URI', False):
|
||||
raise Exception(
|
||||
"file:// type access is denied for security reasons."
|
||||
)
|
||||
|
||||
# Unset any existing notification error
|
||||
update_obj = {'last_notification_error': False, 'last_error': False}
|
||||
|
||||
request_headers = watch.get('headers', [])
|
||||
request_headers.update(self.datastore.get_all_base_headers())
|
||||
request_headers.update(self.datastore.get_all_headers_in_textfile_for_watch(uuid=uuid))
|
||||
|
||||
# https://github.com/psf/requests/issues/4525
|
||||
# Requests doesnt yet support brotli encoding, so don't put 'br' here, be totally sure that the user cannot
|
||||
# do this by accident.
|
||||
if 'Accept-Encoding' in request_headers and "br" in request_headers['Accept-Encoding']:
|
||||
request_headers['Accept-Encoding'] = request_headers['Accept-Encoding'].replace(', br', '')
|
||||
|
||||
timeout = self.datastore.data['settings']['requests'].get('timeout')
|
||||
|
||||
url = watch.link
|
||||
|
||||
request_body = self.datastore.data['watching'][uuid].get('body')
|
||||
request_method = self.datastore.data['watching'][uuid].get('method')
|
||||
ignore_status_codes = self.datastore.data['watching'][uuid].get('ignore_status_codes', False)
|
||||
|
||||
# Pluggable content fetcher
|
||||
prefer_backend = watch.get_fetch_backend
|
||||
if not prefer_backend or prefer_backend == 'system':
|
||||
prefer_backend = self.datastore.data['settings']['application']['fetch_backend']
|
||||
|
||||
if hasattr(content_fetcher, prefer_backend):
|
||||
klass = getattr(content_fetcher, prefer_backend)
|
||||
else:
|
||||
# If the klass doesnt exist, just use a default
|
||||
klass = getattr(content_fetcher, "html_requests")
|
||||
|
||||
proxy_id = self.datastore.get_preferred_proxy_for_watch(uuid=uuid)
|
||||
proxy_url = None
|
||||
if proxy_id:
|
||||
proxy_url = self.datastore.proxy_list.get(proxy_id).get('url')
|
||||
print("UUID {} Using proxy {}".format(uuid, proxy_url))
|
||||
|
||||
fetcher = klass(proxy_override=proxy_url)
|
||||
|
||||
# Configurable per-watch or global extra delay before extracting text (for webDriver types)
|
||||
system_webdriver_delay = self.datastore.data['settings']['application'].get('webdriver_delay', None)
|
||||
if watch['webdriver_delay'] is not None:
|
||||
fetcher.render_extract_delay = watch.get('webdriver_delay')
|
||||
elif system_webdriver_delay is not None:
|
||||
fetcher.render_extract_delay = system_webdriver_delay
|
||||
|
||||
# Could be removed if requests/plaintext could also return some info?
|
||||
if prefer_backend != 'html_webdriver':
|
||||
raise Exception("Re-stock detection requires Chrome or compatible webdriver/playwright fetcher to work")
|
||||
|
||||
if watch.get('webdriver_js_execute_code') is not None and watch.get('webdriver_js_execute_code').strip():
|
||||
fetcher.webdriver_js_execute_code = watch.get('webdriver_js_execute_code')
|
||||
|
||||
fetcher.run(url, timeout, request_headers, request_body, request_method, ignore_status_codes, watch.get('include_filters'))
|
||||
fetcher.quit()
|
||||
|
||||
self.screenshot = fetcher.screenshot
|
||||
self.xpath_data = fetcher.xpath_data
|
||||
self.screenshot = self.fetcher.screenshot
|
||||
self.xpath_data = self.fetcher.xpath_data
|
||||
|
||||
# Track the content type
|
||||
update_obj['content_type'] = fetcher.headers.get('Content-Type', '')
|
||||
update_obj["last_check_status"] = fetcher.get_last_status_code()
|
||||
update_obj['content_type'] = self.fetcher.headers.get('Content-Type', '')
|
||||
update_obj["last_check_status"] = self.fetcher.get_last_status_code()
|
||||
|
||||
# Main detection method
|
||||
fetched_md5 = None
|
||||
if fetcher.instock_data:
|
||||
fetched_md5 = hashlib.md5(fetcher.instock_data.encode('utf-8')).hexdigest()
|
||||
if self.fetcher.instock_data:
|
||||
fetched_md5 = hashlib.md5(self.fetcher.instock_data.encode('utf-8')).hexdigest()
|
||||
# 'Possibly in stock' comes from stock-not-in-stock.js when no string found above the fold.
|
||||
update_obj["in_stock"] = True if fetcher.instock_data == 'Possibly in stock' else False
|
||||
update_obj["in_stock"] = True if self.fetcher.instock_data == 'Possibly in stock' else False
|
||||
else:
|
||||
raise UnableToExtractRestockData(status_code=fetcher.status_code)
|
||||
raise UnableToExtractRestockData(status_code=self.fetcher.status_code)
|
||||
|
||||
# The main thing that all this at the moment comes down to :)
|
||||
changed_detected = False
|
||||
|
@ -128,4 +61,4 @@ class perform_site_check(difference_detection_processor):
|
|||
# Always record the new checksum
|
||||
update_obj["previous_md5"] = fetched_md5
|
||||
|
||||
return changed_detected, update_obj, fetcher.instock_data.encode('utf-8')
|
||||
return changed_detected, update_obj, self.fetcher.instock_data.encode('utf-8')
|
||||
|
|
|
@ -1,4 +1,4 @@
|
|||
# HTML to TEXT/JSON DIFFERENCE FETCHER
|
||||
# HTML to TEXT/JSON DIFFERENCE self.fetcher
|
||||
|
||||
import hashlib
|
||||
import json
|
||||
|
@ -32,15 +32,10 @@ class PDFToHTMLToolNotFound(ValueError):
|
|||
# Some common stuff here that can be moved to a base class
|
||||
# (set_proxy_from_list)
|
||||
class perform_site_check(difference_detection_processor):
|
||||
screenshot = None
|
||||
xpath_data = None
|
||||
|
||||
def __init__(self, *args, datastore, **kwargs):
|
||||
super().__init__(*args, **kwargs)
|
||||
self.datastore = datastore
|
||||
|
||||
def run(self, uuid, skip_when_checksum_same=True, preferred_proxy=None):
|
||||
def run_changedetection(self, uuid, skip_when_checksum_same=True):
|
||||
changed_detected = False
|
||||
html_content = ""
|
||||
screenshot = False # as bytes
|
||||
stripped_text_from_html = ""
|
||||
|
||||
|
@ -49,100 +44,25 @@ class perform_site_check(difference_detection_processor):
|
|||
if not watch:
|
||||
raise Exception("Watch no longer exists.")
|
||||
|
||||
# Protect against file:// access
|
||||
if re.search(r'^file', watch.get('url', ''), re.IGNORECASE) and not os.getenv('ALLOW_FILE_URI', False):
|
||||
raise Exception(
|
||||
"file:// type access is denied for security reasons."
|
||||
)
|
||||
|
||||
# Unset any existing notification error
|
||||
update_obj = {'last_notification_error': False, 'last_error': False}
|
||||
|
||||
# Tweak the base config with the per-watch ones
|
||||
request_headers = watch.get('headers', [])
|
||||
request_headers.update(self.datastore.get_all_base_headers())
|
||||
request_headers.update(self.datastore.get_all_headers_in_textfile_for_watch(uuid=uuid))
|
||||
|
||||
# https://github.com/psf/requests/issues/4525
|
||||
# Requests doesnt yet support brotli encoding, so don't put 'br' here, be totally sure that the user cannot
|
||||
# do this by accident.
|
||||
if 'Accept-Encoding' in request_headers and "br" in request_headers['Accept-Encoding']:
|
||||
request_headers['Accept-Encoding'] = request_headers['Accept-Encoding'].replace(', br', '')
|
||||
|
||||
timeout = self.datastore.data['settings']['requests'].get('timeout')
|
||||
|
||||
url = watch.link
|
||||
|
||||
request_body = self.datastore.data['watching'][uuid].get('body')
|
||||
request_method = self.datastore.data['watching'][uuid].get('method')
|
||||
ignore_status_codes = self.datastore.data['watching'][uuid].get('ignore_status_codes', False)
|
||||
|
||||
# source: support
|
||||
is_source = False
|
||||
if url.startswith('source:'):
|
||||
url = url.replace('source:', '')
|
||||
is_source = True
|
||||
|
||||
# Pluggable content fetcher
|
||||
prefer_backend = watch.get_fetch_backend
|
||||
if not prefer_backend or prefer_backend == 'system':
|
||||
prefer_backend = self.datastore.data['settings']['application']['fetch_backend']
|
||||
|
||||
if hasattr(content_fetcher, prefer_backend):
|
||||
klass = getattr(content_fetcher, prefer_backend)
|
||||
else:
|
||||
# If the klass doesnt exist, just use a default
|
||||
klass = getattr(content_fetcher, "html_requests")
|
||||
|
||||
if preferred_proxy:
|
||||
proxy_id = preferred_proxy
|
||||
else:
|
||||
proxy_id = self.datastore.get_preferred_proxy_for_watch(uuid=uuid)
|
||||
|
||||
proxy_url = None
|
||||
if proxy_id:
|
||||
proxy_url = self.datastore.proxy_list.get(proxy_id).get('url')
|
||||
print("UUID {} Using proxy {}".format(uuid, proxy_url))
|
||||
|
||||
fetcher = klass(proxy_override=proxy_url)
|
||||
|
||||
# Configurable per-watch or global extra delay before extracting text (for webDriver types)
|
||||
system_webdriver_delay = self.datastore.data['settings']['application'].get('webdriver_delay', None)
|
||||
if watch['webdriver_delay'] is not None:
|
||||
fetcher.render_extract_delay = watch.get('webdriver_delay')
|
||||
elif system_webdriver_delay is not None:
|
||||
fetcher.render_extract_delay = system_webdriver_delay
|
||||
|
||||
# Possible conflict
|
||||
if prefer_backend == 'html_webdriver':
|
||||
fetcher.browser_steps = watch.get('browser_steps', None)
|
||||
fetcher.browser_steps_screenshot_path = os.path.join(self.datastore.datastore_path, uuid)
|
||||
|
||||
if watch.get('webdriver_js_execute_code') is not None and watch.get('webdriver_js_execute_code').strip():
|
||||
fetcher.webdriver_js_execute_code = watch.get('webdriver_js_execute_code')
|
||||
|
||||
# requests for PDF's, images etc should be passwd the is_binary flag
|
||||
is_binary = watch.is_pdf
|
||||
|
||||
fetcher.run(url, timeout, request_headers, request_body, request_method, ignore_status_codes, watch.get('include_filters'),
|
||||
is_binary=is_binary)
|
||||
fetcher.quit()
|
||||
|
||||
self.screenshot = fetcher.screenshot
|
||||
self.xpath_data = fetcher.xpath_data
|
||||
self.screenshot = self.fetcher.screenshot
|
||||
self.xpath_data = self.fetcher.xpath_data
|
||||
|
||||
# Track the content type
|
||||
update_obj['content_type'] = fetcher.get_all_headers().get('content-type', '').lower()
|
||||
update_obj['content_type'] = self.fetcher.get_all_headers().get('content-type', '').lower()
|
||||
|
||||
# Watches added automatically in the queue manager will skip if its the same checksum as the previous run
|
||||
# Saves a lot of CPU
|
||||
update_obj['previous_md5_before_filters'] = hashlib.md5(fetcher.content.encode('utf-8')).hexdigest()
|
||||
update_obj['previous_md5_before_filters'] = hashlib.md5(self.fetcher.content.encode('utf-8')).hexdigest()
|
||||
if skip_when_checksum_same:
|
||||
if update_obj['previous_md5_before_filters'] == watch.get('previous_md5_before_filters'):
|
||||
raise content_fetcher.checksumFromPreviousCheckWasTheSame()
|
||||
|
||||
# Fetching complete, now filters
|
||||
# @todo move to class / maybe inside of fetcher abstract base?
|
||||
|
||||
# @note: I feel like the following should be in a more obvious chain system
|
||||
# - Check filter text
|
||||
|
@ -151,24 +71,24 @@ class perform_site_check(difference_detection_processor):
|
|||
# https://stackoverflow.com/questions/41817578/basic-method-chaining ?
|
||||
# return content().textfilter().jsonextract().checksumcompare() ?
|
||||
|
||||
is_json = 'application/json' in fetcher.get_all_headers().get('content-type', '').lower()
|
||||
is_json = 'application/json' in self.fetcher.get_all_headers().get('content-type', '').lower()
|
||||
is_html = not is_json
|
||||
is_rss = False
|
||||
|
||||
ctype_header = fetcher.get_all_headers().get('content-type', '').lower()
|
||||
ctype_header = self.fetcher.get_all_headers().get('content-type', '').lower()
|
||||
# Go into RSS preprocess for converting CDATA/comment to usable text
|
||||
if any(substring in ctype_header for substring in ['application/xml', 'application/rss', 'text/xml']):
|
||||
if '<rss' in fetcher.content[:100].lower():
|
||||
fetcher.content = cdata_in_document_to_text(html_content=fetcher.content)
|
||||
if '<rss' in self.fetcher.content[:100].lower():
|
||||
self.fetcher.content = cdata_in_document_to_text(html_content=self.fetcher.content)
|
||||
is_rss = True
|
||||
|
||||
# source: support, basically treat it as plaintext
|
||||
if is_source:
|
||||
if watch.is_source_type_url:
|
||||
is_html = False
|
||||
is_json = False
|
||||
|
||||
inline_pdf = fetcher.get_all_headers().get('content-disposition', '') and '%PDF-1' in fetcher.content[:10]
|
||||
if watch.is_pdf or 'application/pdf' in fetcher.get_all_headers().get('content-type', '').lower() or inline_pdf:
|
||||
inline_pdf = self.fetcher.get_all_headers().get('content-disposition', '') and '%PDF-1' in self.fetcher.content[:10]
|
||||
if watch.is_pdf or 'application/pdf' in self.fetcher.get_all_headers().get('content-type', '').lower() or inline_pdf:
|
||||
from shutil import which
|
||||
tool = os.getenv("PDF_TO_HTML_TOOL", "pdftohtml")
|
||||
if not which(tool):
|
||||
|
@ -179,18 +99,18 @@ class perform_site_check(difference_detection_processor):
|
|||
[tool, '-stdout', '-', '-s', 'out.pdf', '-i'],
|
||||
stdout=subprocess.PIPE,
|
||||
stdin=subprocess.PIPE)
|
||||
proc.stdin.write(fetcher.raw_content)
|
||||
proc.stdin.write(self.fetcher.raw_content)
|
||||
proc.stdin.close()
|
||||
fetcher.content = proc.stdout.read().decode('utf-8')
|
||||
self.fetcher.content = proc.stdout.read().decode('utf-8')
|
||||
proc.wait(timeout=60)
|
||||
|
||||
# Add a little metadata so we know if the file changes (like if an image changes, but the text is the same
|
||||
# @todo may cause problems with non-UTF8?
|
||||
metadata = "<p>Added by changedetection.io: Document checksum - {} Filesize - {} bytes</p>".format(
|
||||
hashlib.md5(fetcher.raw_content).hexdigest().upper(),
|
||||
len(fetcher.content))
|
||||
hashlib.md5(self.fetcher.raw_content).hexdigest().upper(),
|
||||
len(self.fetcher.content))
|
||||
|
||||
fetcher.content = fetcher.content.replace('</body>', metadata + '</body>')
|
||||
self.fetcher.content = self.fetcher.content.replace('</body>', metadata + '</body>')
|
||||
|
||||
# Better would be if Watch.model could access the global data also
|
||||
# and then use getattr https://docs.python.org/3/reference/datamodel.html#object.__getitem__
|
||||
|
@ -217,7 +137,7 @@ class perform_site_check(difference_detection_processor):
|
|||
if is_json:
|
||||
# Sort the JSON so we dont get false alerts when the content is just re-ordered
|
||||
try:
|
||||
fetcher.content = json.dumps(json.loads(fetcher.content), sort_keys=True)
|
||||
self.fetcher.content = json.dumps(json.loads(self.fetcher.content), sort_keys=True)
|
||||
except Exception as e:
|
||||
# Might have just been a snippet, or otherwise bad JSON, continue
|
||||
pass
|
||||
|
@ -225,22 +145,22 @@ class perform_site_check(difference_detection_processor):
|
|||
if has_filter_rule:
|
||||
for filter in include_filters_rule:
|
||||
if any(prefix in filter for prefix in json_filter_prefixes):
|
||||
stripped_text_from_html += html_tools.extract_json_as_string(content=fetcher.content, json_filter=filter)
|
||||
stripped_text_from_html += html_tools.extract_json_as_string(content=self.fetcher.content, json_filter=filter)
|
||||
is_html = False
|
||||
|
||||
if is_html or is_source:
|
||||
if is_html or watch.is_source_type_url:
|
||||
|
||||
# CSS Filter, extract the HTML that matches and feed that into the existing inscriptis::get_text
|
||||
fetcher.content = html_tools.workarounds_for_obfuscations(fetcher.content)
|
||||
html_content = fetcher.content
|
||||
self.fetcher.content = html_tools.workarounds_for_obfuscations(self.fetcher.content)
|
||||
html_content = self.fetcher.content
|
||||
|
||||
# If not JSON, and if it's not text/plain..
|
||||
if 'text/plain' in fetcher.get_all_headers().get('content-type', '').lower():
|
||||
if 'text/plain' in self.fetcher.get_all_headers().get('content-type', '').lower():
|
||||
# Don't run get_text or xpath/css filters on plaintext
|
||||
stripped_text_from_html = html_content
|
||||
else:
|
||||
# Does it have some ld+json price data? used for easier monitoring
|
||||
update_obj['has_ldjson_price_data'] = html_tools.has_ldjson_product_info(fetcher.content)
|
||||
update_obj['has_ldjson_price_data'] = html_tools.has_ldjson_product_info(self.fetcher.content)
|
||||
|
||||
# Then we assume HTML
|
||||
if has_filter_rule:
|
||||
|
@ -250,14 +170,14 @@ class perform_site_check(difference_detection_processor):
|
|||
# For HTML/XML we offer xpath as an option, just start a regular xPath "/.."
|
||||
if filter_rule[0] == '/' or filter_rule.startswith('xpath:'):
|
||||
html_content += html_tools.xpath_filter(xpath_filter=filter_rule.replace('xpath:', ''),
|
||||
html_content=fetcher.content,
|
||||
append_pretty_line_formatting=not is_source,
|
||||
html_content=self.fetcher.content,
|
||||
append_pretty_line_formatting=not watch.is_source_type_url,
|
||||
is_rss=is_rss)
|
||||
else:
|
||||
# CSS Filter, extract the HTML that matches and feed that into the existing inscriptis::get_text
|
||||
html_content += html_tools.include_filters(include_filters=filter_rule,
|
||||
html_content=fetcher.content,
|
||||
append_pretty_line_formatting=not is_source)
|
||||
html_content=self.fetcher.content,
|
||||
append_pretty_line_formatting=not watch.is_source_type_url)
|
||||
|
||||
if not html_content.strip():
|
||||
raise FilterNotFoundInResponse(include_filters_rule)
|
||||
|
@ -265,7 +185,7 @@ class perform_site_check(difference_detection_processor):
|
|||
if has_subtractive_selectors:
|
||||
html_content = html_tools.element_removal(subtractive_selectors, html_content)
|
||||
|
||||
if is_source:
|
||||
if watch.is_source_type_url:
|
||||
stripped_text_from_html = html_content
|
||||
else:
|
||||
# extract text
|
||||
|
@ -311,7 +231,7 @@ class perform_site_check(difference_detection_processor):
|
|||
empty_pages_are_a_change = self.datastore.data['settings']['application'].get('empty_pages_are_a_change', False)
|
||||
if not is_json and not empty_pages_are_a_change and len(stripped_text_from_html.strip()) == 0:
|
||||
raise content_fetcher.ReplyWithContentButNoText(url=url,
|
||||
status_code=fetcher.get_last_status_code(),
|
||||
status_code=self.fetcher.get_last_status_code(),
|
||||
screenshot=screenshot,
|
||||
has_filters=has_filter_rule,
|
||||
html_content=html_content
|
||||
|
@ -320,7 +240,7 @@ class perform_site_check(difference_detection_processor):
|
|||
# We rely on the actual text in the html output.. many sites have random script vars etc,
|
||||
# in the future we'll implement other mechanisms.
|
||||
|
||||
update_obj["last_check_status"] = fetcher.get_last_status_code()
|
||||
update_obj["last_check_status"] = self.fetcher.get_last_status_code()
|
||||
|
||||
# If there's text to skip
|
||||
# @todo we could abstract out the get_text() to handle this cleaner
|
||||
|
@ -408,7 +328,7 @@ class perform_site_check(difference_detection_processor):
|
|||
if is_html:
|
||||
if self.datastore.data['settings']['application'].get('extract_title_as_title') or watch['extract_title_as_title']:
|
||||
if not watch['title'] or not len(watch['title']):
|
||||
update_obj['title'] = html_tools.extract_element(find='title', html_content=fetcher.content)
|
||||
update_obj['title'] = html_tools.extract_element(find='title', html_content=self.fetcher.content)
|
||||
|
||||
if changed_detected:
|
||||
if watch.get('check_unique_lines', False):
|
||||
|
|
|
@ -24,7 +24,7 @@ def test_check_extract_text_from_diff(client, live_server):
|
|||
)
|
||||
|
||||
assert b"1 Imported" in res.data
|
||||
time.sleep(1)
|
||||
wait_for_all_checks(client)
|
||||
|
||||
# Load in 5 different numbers/changes
|
||||
last_date=""
|
||||
|
|
|
@ -33,8 +33,6 @@ def test_strip_regex_text_func():
|
|||
"/not"
|
||||
]
|
||||
|
||||
|
||||
fetcher = fetch_site_status.perform_site_check(datastore=False)
|
||||
stripped_content = html_tools.strip_ignore_text(test_content, ignore_lines)
|
||||
|
||||
assert b"but 1 lines" in stripped_content
|
||||
|
|
|
@ -24,7 +24,6 @@ def test_strip_text_func():
|
|||
|
||||
ignore_lines = ["sometimes"]
|
||||
|
||||
fetcher = fetch_site_status.perform_site_check(datastore=False)
|
||||
stripped_content = html_tools.strip_ignore_text(test_content, ignore_lines)
|
||||
|
||||
assert b"sometimes" not in stripped_content
|
||||
|
|
|
@ -80,8 +80,11 @@ def test_headers_in_request(client, live_server):
|
|||
|
||||
# Should be only one with headers set
|
||||
assert watches_with_headers==1
|
||||
res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
|
||||
assert b'Deleted' in res.data
|
||||
|
||||
def test_body_in_request(client, live_server):
|
||||
|
||||
# Add our URL to the import page
|
||||
test_url = url_for('test_body', _external=True)
|
||||
if os.getenv('PLAYWRIGHT_DRIVER_URL'):
|
||||
|
@ -170,7 +173,8 @@ def test_body_in_request(client, live_server):
|
|||
follow_redirects=True
|
||||
)
|
||||
assert b"Body must be empty when Request Method is set to GET" in res.data
|
||||
|
||||
res = client.get(url_for("form_delete", uuid="all"), follow_redirects=True)
|
||||
assert b'Deleted' in res.data
|
||||
|
||||
def test_method_in_request(client, live_server):
|
||||
# Add our URL to the import page
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
from flask import url_for
|
||||
from . util import set_original_response, set_modified_response, live_server_setup
|
||||
from .util import set_original_response, set_modified_response, live_server_setup, wait_for_all_checks
|
||||
import time
|
||||
|
||||
|
||||
|
@ -12,6 +12,7 @@ def test_bad_access(client, live_server):
|
|||
)
|
||||
|
||||
assert b"1 Imported" in res.data
|
||||
wait_for_all_checks(client)
|
||||
|
||||
# Attempt to add a body with a GET method
|
||||
res = client.post(
|
||||
|
@ -59,7 +60,7 @@ def test_bad_access(client, live_server):
|
|||
data={"url": 'file:///tasty/disk/drive', "tags": ''},
|
||||
follow_redirects=True
|
||||
)
|
||||
time.sleep(1)
|
||||
wait_for_all_checks(client)
|
||||
res = client.get(url_for("index"))
|
||||
|
||||
assert b'file:// type access is denied for security reasons.' in res.data
|
|
@ -209,6 +209,7 @@ class update_worker(threading.Thread):
|
|||
from .processors import text_json_diff, restock_diff
|
||||
|
||||
while not self.app.config.exit.is_set():
|
||||
update_handler = None
|
||||
|
||||
try:
|
||||
queued_item_data = self.q.get(block=False)
|
||||
|
@ -229,17 +230,35 @@ class update_worker(threading.Thread):
|
|||
now = time.time()
|
||||
|
||||
try:
|
||||
processor = self.datastore.data['watching'][uuid].get('processor','text_json_diff')
|
||||
# Processor is what we are using for detecting the "Change"
|
||||
processor = self.datastore.data['watching'][uuid].get('processor', 'text_json_diff')
|
||||
# if system...
|
||||
|
||||
# Abort processing when the content was the same as the last fetch
|
||||
skip_when_same_checksum = queued_item_data.item.get('skip_when_checksum_same')
|
||||
|
||||
|
||||
# @todo some way to switch by name
|
||||
# Init a new 'difference_detection_processor'
|
||||
|
||||
if processor == 'restock_diff':
|
||||
update_handler = restock_diff.perform_site_check(datastore=self.datastore)
|
||||
update_handler = restock_diff.perform_site_check(datastore=self.datastore,
|
||||
watch_uuid=uuid
|
||||
)
|
||||
else:
|
||||
# Used as a default and also by some tests
|
||||
update_handler = text_json_diff.perform_site_check(datastore=self.datastore)
|
||||
update_handler = text_json_diff.perform_site_check(datastore=self.datastore,
|
||||
watch_uuid=uuid
|
||||
)
|
||||
|
||||
# Clear last errors (move to preflight func?)
|
||||
self.datastore.data['watching'][uuid]['browser_steps_last_error_step'] = None
|
||||
changed_detected, update_obj, contents = update_handler.run(uuid, skip_when_checksum_same=queued_item_data.item.get('skip_when_checksum_same'))
|
||||
|
||||
update_handler.call_browser()
|
||||
|
||||
changed_detected, update_obj, contents = update_handler.run_changedetection(uuid,
|
||||
skip_when_checksum_same=skip_when_same_checksum,
|
||||
)
|
||||
|
||||
# Re #342
|
||||
# In Python 3, all strings are sequences of Unicode characters. There is a bytes type that holds raw bytes.
|
||||
|
@ -391,6 +410,9 @@ class update_worker(threading.Thread):
|
|||
self.datastore.update_watch(uuid=uuid, update_obj={'last_error': str(e)})
|
||||
# Other serious error
|
||||
process_changedetection_results = False
|
||||
# import traceback
|
||||
# print(traceback.format_exc())
|
||||
|
||||
else:
|
||||
# Crash protection, the watch entry could have been removed by this point (during a slow chrome fetch etc)
|
||||
if not self.datastore.data['watching'].get(uuid):
|
||||
|
|
Ładowanie…
Reference in New Issue